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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:11:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 15:11:04 -0700
commite6bee325e49f17c65c1fd66e9e8b348c85788341 (patch)
treebcc9e5d8e82efa9009edd481a837cc3626360091 /drivers/char
parenta5e6b135bdff649e4330f98e2e80dbb1984f7e77 (diff)
parent6ae705b23be8da52d3163be9d81e9b767876aaf9 (diff)
Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (76 commits) pch_uart: reference clock on CM-iTC pch_phub: add new device ML7213 n_gsm: fix UIH control byte : P bit should be 0 n_gsm: add a documentation serial: msm_serial_hs: Add MSM high speed UART driver tty_audit: fix tty_audit_add_data live lock on audit disabled tty: move cd1865.h to drivers/staging/tty/ Staging: tty: fix build with epca.c driver pcmcia: synclink_cs: fix prototype for mgslpc_ioctl() Staging: generic_serial: fix double locking bug nozomi: don't use flush_scheduled_work() tty/serial: Relax the device_type restriction from of_serial MAINTAINERS: Update HVC file patterns tty: phase out of ioctl file pointer for tty3270 as well tty: forgot to remove ipwireless from drivers/char/pcmcia/Makefile pch_uart: Fix DMA channel miss-setting issue. pch_uart: fix exclusive access issue pch_uart: fix auto flow control miss-setting issue pch_uart: fix uart clock setting issue pch_uart : Use dev_xxx not pr_xxx ... Fix up trivial conflicts in drivers/misc/pch_phub.c (same patch applied twice, then changes to the same area in one branch)
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/Kconfig540
-rw-r--r--drivers/char/Makefile24
-rw-r--r--drivers/char/amiserial.c2178
-rw-r--r--drivers/char/bfin_jtag_comm.c366
-rw-r--r--drivers/char/cd1865.h263
-rw-r--r--drivers/char/cyclades.c4200
-rw-r--r--drivers/char/digi1.h100
-rw-r--r--drivers/char/digiFep1.h136
-rw-r--r--drivers/char/digiPCI.h42
-rw-r--r--drivers/char/epca.c2784
-rw-r--r--drivers/char/epca.h158
-rw-r--r--drivers/char/epcaconfig.h7
-rw-r--r--drivers/char/generic_serial.c844
-rw-r--r--drivers/char/ip2/Makefile8
-rw-r--r--drivers/char/ip2/i2cmd.c210
-rw-r--r--drivers/char/ip2/i2cmd.h630
-rw-r--r--drivers/char/ip2/i2ellis.c1403
-rw-r--r--drivers/char/ip2/i2ellis.h566
-rw-r--r--drivers/char/ip2/i2hw.h652
-rw-r--r--drivers/char/ip2/i2lib.c2214
-rw-r--r--drivers/char/ip2/i2lib.h351
-rw-r--r--drivers/char/ip2/i2pack.h364
-rw-r--r--drivers/char/ip2/ip2.h107
-rw-r--r--drivers/char/ip2/ip2ioctl.h35
-rw-r--r--drivers/char/ip2/ip2main.c3234
-rw-r--r--drivers/char/ip2/ip2trace.h42
-rw-r--r--drivers/char/ip2/ip2types.h57
-rw-r--r--drivers/char/isicom.c1736
-rw-r--r--drivers/char/istallion.c4507
-rw-r--r--drivers/char/moxa.c2092
-rw-r--r--drivers/char/moxa.h304
-rw-r--r--drivers/char/mxser.c2757
-rw-r--r--drivers/char/mxser.h150
-rw-r--r--drivers/char/nozomi.c1993
-rw-r--r--drivers/char/pcmcia/Makefile2
-rw-r--r--drivers/char/pcmcia/ipwireless/Makefile10
-rw-r--r--drivers/char/pcmcia/ipwireless/hardware.c1764
-rw-r--r--drivers/char/pcmcia/ipwireless/hardware.h62
-rw-r--r--drivers/char/pcmcia/ipwireless/main.c347
-rw-r--r--drivers/char/pcmcia/ipwireless/main.h68
-rw-r--r--drivers/char/pcmcia/ipwireless/network.c508
-rw-r--r--drivers/char/pcmcia/ipwireless/network.h53
-rw-r--r--drivers/char/pcmcia/ipwireless/setup_protocol.h108
-rw-r--r--drivers/char/pcmcia/ipwireless/tty.c679
-rw-r--r--drivers/char/pcmcia/ipwireless/tty.h45
-rw-r--r--drivers/char/pcmcia/synclink_cs.c13
-rw-r--r--drivers/char/rio/Makefile12
-rw-r--r--drivers/char/rio/board.h132
-rw-r--r--drivers/char/rio/cirrus.h210
-rw-r--r--drivers/char/rio/cmdblk.h53
-rw-r--r--drivers/char/rio/cmdpkt.h177
-rw-r--r--drivers/char/rio/daemon.h307
-rw-r--r--drivers/char/rio/errors.h98
-rw-r--r--drivers/char/rio/func.h143
-rw-r--r--drivers/char/rio/host.h123
-rw-r--r--drivers/char/rio/link.h96
-rw-r--r--drivers/char/rio/linux_compat.h77
-rw-r--r--drivers/char/rio/map.h98
-rw-r--r--drivers/char/rio/param.h55
-rw-r--r--drivers/char/rio/parmmap.h81
-rw-r--r--drivers/char/rio/pci.h72
-rw-r--r--drivers/char/rio/phb.h142
-rw-r--r--drivers/char/rio/pkt.h77
-rw-r--r--drivers/char/rio/port.h179
-rw-r--r--drivers/char/rio/protsts.h110
-rw-r--r--drivers/char/rio/rio.h208
-rw-r--r--drivers/char/rio/rio_linux.c1204
-rw-r--r--drivers/char/rio/rio_linux.h197
-rw-r--r--drivers/char/rio/rioboard.h275
-rw-r--r--drivers/char/rio/rioboot.c1113
-rw-r--r--drivers/char/rio/riocmd.c939
-rw-r--r--drivers/char/rio/rioctrl.c1504
-rw-r--r--drivers/char/rio/riodrvr.h138
-rw-r--r--drivers/char/rio/rioinfo.h92
-rw-r--r--drivers/char/rio/rioinit.c421
-rw-r--r--drivers/char/rio/riointr.c645
-rw-r--r--drivers/char/rio/rioioctl.h57
-rw-r--r--drivers/char/rio/rioparam.c663
-rw-r--r--drivers/char/rio/rioroute.c1039
-rw-r--r--drivers/char/rio/riospace.h154
-rw-r--r--drivers/char/rio/riotable.c941
-rw-r--r--drivers/char/rio/riotty.c654
-rw-r--r--drivers/char/rio/route.h101
-rw-r--r--drivers/char/rio/rup.h69
-rw-r--r--drivers/char/rio/unixrup.h51
-rw-r--r--drivers/char/riscom8.c1560
-rw-r--r--drivers/char/riscom8.h91
-rw-r--r--drivers/char/riscom8_reg.h254
-rw-r--r--drivers/char/rocket.c3199
-rw-r--r--drivers/char/rocket.h111
-rw-r--r--drivers/char/rocket_int.h1214
-rw-r--r--drivers/char/ser_a2232.c831
-rw-r--r--drivers/char/ser_a2232.h202
-rw-r--r--drivers/char/ser_a2232fw.ax529
-rw-r--r--drivers/char/ser_a2232fw.h306
-rw-r--r--drivers/char/serial167.c2490
-rw-r--r--drivers/char/specialix.c2368
-rw-r--r--drivers/char/specialix_io8.h140
-rw-r--r--drivers/char/stallion.c4652
-rw-r--r--drivers/char/sx.c2894
-rw-r--r--drivers/char/sx.h201
-rw-r--r--drivers/char/sxboards.h206
-rw-r--r--drivers/char/sxwindow.h393
-rw-r--r--drivers/char/synclink.c8120
-rw-r--r--drivers/char/synclink_gt.c5162
-rw-r--r--drivers/char/synclinkmp.c5601
-rw-r--r--drivers/char/ttyprintk.c2
-rw-r--r--drivers/char/vme_scc.c1145
108 files changed, 9 insertions, 93082 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index b7980a83ce2..04f8b2d083c 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -4,89 +4,7 @@
menu "Character devices"
-config VT
- bool "Virtual terminal" if EXPERT
- depends on !S390
- select INPUT
- default y
- ---help---
- If you say Y here, you will get support for terminal devices with
- display and keyboard devices. These are called "virtual" because you
- can run several virtual terminals (also called virtual consoles) on
- one physical terminal. This is rather useful, for example one
- virtual terminal can collect system messages and warnings, another
- one can be used for a text-mode user session, and a third could run
- an X session, all in parallel. Switching between virtual terminals
- is done with certain key combinations, usually Alt-<function key>.
-
- The setterm command ("man setterm") can be used to change the
- properties (such as colors or beeping) of a virtual terminal. The
- man page console_codes(4) ("man console_codes") contains the special
- character sequences that can be used to change those properties
- directly. The fonts used on virtual terminals can be changed with
- the setfont ("man setfont") command and the key bindings are defined
- with the loadkeys ("man loadkeys") command.
-
- You need at least one virtual terminal device in order to make use
- of your keyboard and monitor. Therefore, only people configuring an
- embedded system would want to say N here in order to save some
- memory; the only way to log into such a system is then via a serial
- or network connection.
-
- If unsure, say Y, or else you won't be able to do much with your new
- shiny Linux system :-)
-
-config CONSOLE_TRANSLATIONS
- depends on VT
- default y
- bool "Enable character translations in console" if EXPERT
- ---help---
- This enables support for font mapping and Unicode translation
- on virtual consoles.
-
-config VT_CONSOLE
- bool "Support for console on virtual terminal" if EXPERT
- depends on VT
- default y
- ---help---
- The system console is the device which receives all kernel messages
- and warnings and which allows logins in single user mode. If you
- answer Y here, a virtual terminal (the device used to interact with
- a physical terminal) can be used as system console. This is the most
- common mode of operations, so you should say Y here unless you want
- the kernel messages be output only to a serial port (in which case
- you should say Y to "Console on serial port", below).
-
- If you do say Y here, by default the currently visible virtual
- terminal (/dev/tty0) will be used as system console. You can change
- that with a kernel command line option such as "console=tty3" which
- would use the third virtual terminal as system console. (Try "man
- bootparam" or see the documentation of your boot loader (lilo or
- loadlin) about how to pass options to the kernel at boot time.)
-
- If unsure, say Y.
-
-config HW_CONSOLE
- bool
- depends on VT && !S390 && !UML
- default y
-
-config VT_HW_CONSOLE_BINDING
- bool "Support for binding and unbinding console drivers"
- depends on HW_CONSOLE
- default n
- ---help---
- The virtual terminal is the device that interacts with the physical
- terminal through console drivers. On these systems, at least one
- console driver is loaded. In other configurations, additional console
- drivers may be enabled, such as the framebuffer console. If more than
- 1 console driver is enabled, setting this to 'y' will allow you to
- select the console driver that will serve as the backend for the
- virtual terminals.
-
- See <file:Documentation/console/console.txt> for more
- information. For framebuffer console users, please refer to
- <file:Documentation/fb/fbcon.txt>.
+source "drivers/tty/Kconfig"
config DEVKMEM
bool "/dev/kmem virtual device support"
@@ -97,253 +15,6 @@ config DEVKMEM
kind of kernel debugging operations.
When in doubt, say "N".
-config BFIN_JTAG_COMM
- tristate "Blackfin JTAG Communication"
- depends on BLACKFIN
- help
- Add support for emulating a TTY device over the Blackfin JTAG.
-
- To compile this driver as a module, choose M here: the
- module will be called bfin_jtag_comm.
-
-config BFIN_JTAG_COMM_CONSOLE
- bool "Console on Blackfin JTAG"
- depends on BFIN_JTAG_COMM=y
-
-config SERIAL_NONSTANDARD
- bool "Non-standard serial port support"
- depends on HAS_IOMEM
- ---help---
- Say Y here if you have any non-standard serial boards -- boards
- which aren't supported using the standard "dumb" serial driver.
- This includes intelligent serial boards such as Cyclades,
- Digiboards, etc. These are usually used for systems that need many
- serial ports because they serve many terminals or dial-in
- connections.
-
- Note that the answer to this question won't directly affect the
- kernel: saying N will just cause the configurator to skip all
- the questions about non-standard serial boards.
-
- Most people can say N here.
-
-config COMPUTONE
- tristate "Computone IntelliPort Plus serial support"
- depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
- ---help---
- This driver supports the entire family of Intelliport II/Plus
- controllers with the exception of the MicroChannel controllers and
- products previous to the Intelliport II. These are multiport cards,
- which give you many serial ports. You would need something like this
- to connect more than two modems to your Linux box, for instance in
- order to become a dial-in server. If you have a card like that, say
- Y here and read <file:Documentation/serial/computone.txt>.
-
- To compile this driver as module, choose M here: the
- module will be called ip2.
-
-config ROCKETPORT
- tristate "Comtrol RocketPort support"
- depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
- help
- This driver supports Comtrol RocketPort and RocketModem PCI boards.
- These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or
- modems. For information about the RocketPort/RocketModem boards
- and this driver read <file:Documentation/serial/rocket.txt>.
-
- To compile this driver as a module, choose M here: the
- module will be called rocket.
-
- If you want to compile this driver into the kernel, say Y here. If
- you don't have a Comtrol RocketPort/RocketModem card installed, say N.
-
-config CYCLADES
- tristate "Cyclades async mux support"
- depends on SERIAL_NONSTANDARD && (PCI || ISA)
- select FW_LOADER
- ---help---
- This driver supports Cyclades Z and Y multiserial boards.
- You would need something like this to connect more than two modems to
- your Linux box, for instance in order to become a dial-in server.
-
- For information about the Cyclades-Z card, read
- <file:Documentation/serial/README.cycladesZ>.
-
- To compile this driver as a module, choose M here: the
- module will be called cyclades.
-
- If you haven't heard about it, it's safe to say N.
-
-config CYZ_INTR
- bool "Cyclades-Z interrupt mode operation (EXPERIMENTAL)"
- depends on EXPERIMENTAL && CYCLADES
- help
- The Cyclades-Z family of multiport cards allows 2 (two) driver op
- modes: polling and interrupt. In polling mode, the driver will check
- the status of the Cyclades-Z ports every certain amount of time
- (which is called polling cycle and is configurable). In interrupt
- mode, it will use an interrupt line (IRQ) in order to check the
- status of the Cyclades-Z ports. The default op mode is polling. If
- unsure, say N.
-
-config DIGIEPCA
- tristate "Digiboard Intelligent Async Support"
- depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
- ---help---
- This is a driver for Digi International's Xx, Xeve, and Xem series
- of cards which provide multiple serial ports. You would need
- something like this to connect more than two modems to your Linux
- box, for instance in order to become a dial-in server. This driver
- supports the original PC (ISA) boards as well as PCI, and EISA. If
- you have a card like this, say Y here and read the file
- <file:Documentation/serial/digiepca.txt>.
-
- To compile this driver as a module, choose M here: the
- module will be called epca.
-
-config MOXA_INTELLIO
- tristate "Moxa Intellio support"
- depends on SERIAL_NONSTANDARD && (ISA || EISA || PCI)
- select FW_LOADER
- help
- Say Y here if you have a Moxa Intellio multiport serial card.
-
- To compile this driver as a module, choose M here: the
- module will be called moxa.
-
-config MOXA_SMARTIO
- tristate "Moxa SmartIO support v. 2.0"
- depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA)
- help
- Say Y here if you have a Moxa SmartIO multiport serial card and/or
- want to help develop a new version of this driver.
-
- This is upgraded (1.9.1) driver from original Moxa drivers with
- changes finally resulting in PCI probing.
-
- This driver can also be built as a module. The module will be called
- mxser. If you want to do that, say M here.
-
-config ISI
- tristate "Multi-Tech multiport card support (EXPERIMENTAL)"
- depends on SERIAL_NONSTANDARD && PCI
- select FW_LOADER
- help
- This is a driver for the Multi-Tech cards which provide several
- serial ports. The driver is experimental and can currently only be
- built as a module. The module will be called isicom.
- If you want to do that, choose M here.
-
-config SYNCLINK
- tristate "Microgate SyncLink card support"
- depends on SERIAL_NONSTANDARD && PCI && ISA_DMA_API
- help
- Provides support for the SyncLink ISA and PCI multiprotocol serial
- adapters. These adapters support asynchronous and HDLC bit
- synchronous communication up to 10Mbps (PCI adapter).
-
- This driver can only be built as a module ( = code which can be
- inserted in and removed from the running kernel whenever you want).
- The module will be called synclink. If you want to do that, say M
- here.
-
-config SYNCLINKMP
- tristate "SyncLink Multiport support"
- depends on SERIAL_NONSTANDARD && PCI
- help
- Enable support for the SyncLink Multiport (2 or 4 ports)
- serial adapter, running asynchronous and HDLC communications up
- to 2.048Mbps. Each ports is independently selectable for
- RS-232, V.35, RS-449, RS-530, and X.21
-
- This driver may be built as a module ( = code which can be
- inserted in and removed from the running kernel whenever you want).
- The module will be called synclinkmp. If you want to do that, say M
- here.
-
-config SYNCLINK_GT
- tristate "SyncLink GT/AC support"
- depends on SERIAL_NONSTANDARD && PCI
- help
- Support for SyncLink GT and SyncLink AC families of
- synchronous and asynchronous serial adapters
- manufactured by Microgate Systems, Ltd. (www.microgate.com)
-
-config N_HDLC
- tristate "HDLC line discipline support"
- depends on SERIAL_NONSTANDARD
- help
- Allows synchronous HDLC communications with tty device drivers that
- support synchronous HDLC such as the Microgate SyncLink adapter.
-
- This driver can be built as a module ( = code which can be
- inserted in and removed from the running kernel whenever you want).
- The module will be called n_hdlc. If you want to do that, say M
- here.
-
-config N_GSM
- tristate "GSM MUX line discipline support (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- depends on NET
- help
- This line discipline provides support for the GSM MUX protocol and
- presents the mux as a set of 61 individual tty devices.
-
-config RISCOM8
- tristate "SDL RISCom/8 card support"
- depends on SERIAL_NONSTANDARD
- help
- This is a driver for the SDL Communications RISCom/8 multiport card,
- which gives you many serial ports. You would need something like
- this to connect more than two modems to your Linux box, for instance
- in order to become a dial-in server. If you have a card like that,
- say Y here and read the file <file:Documentation/serial/riscom8.txt>.
-
- Also it's possible to say M here and compile this driver as kernel
- loadable module; the module will be called riscom8.
-
-config SPECIALIX
- tristate "Specialix IO8+ card support"
- depends on SERIAL_NONSTANDARD
- help
- This is a driver for the Specialix IO8+ multiport card (both the
- ISA and the PCI version) which gives you many serial ports. You
- would need something like this to connect more than two modems to
- your Linux box, for instance in order to become a dial-in server.
-
- If you have a card like that, say Y here and read the file
- <file:Documentation/serial/specialix.txt>. Also it's possible to say
- M here and compile this driver as kernel loadable module which will be
- called specialix.
-
-config SX
- tristate "Specialix SX (and SI) card support"
- depends on SERIAL_NONSTANDARD && (PCI || EISA || ISA) && BROKEN
- help
- This is a driver for the SX and SI multiport serial cards.
- Please read the file <file:Documentation/serial/sx.txt> for details.
-
- This driver can only be built as a module ( = code which can be
- inserted in and removed from the running kernel whenever you want).
- The module will be called sx. If you want to do that, say M here.
-
-config RIO
- tristate "Specialix RIO system support"
- depends on SERIAL_NONSTANDARD && BROKEN
- help
- This is a driver for the Specialix RIO, a smart serial card which
- drives an outboard box that can support up to 128 ports. Product
- information is at <http://www.perle.com/support/documentation.html#multiport>.
- There are both ISA and PCI versions.
-
-config RIO_OLDPCI
- bool "Support really old RIO/PCI cards"
- depends on RIO
- help
- Older RIO PCI cards need some initialization-time configuration to
- determine the IRQ and some control addresses. If you have a RIO and
- this doesn't seem to work, try setting this to Y.
-
config STALDRV
bool "Stallion multiport serial support"
depends on SERIAL_NONSTANDARD
@@ -356,54 +27,6 @@ config STALDRV
in this case. If you have never heard about all this, it's safe to
say N.
-config STALLION
- tristate "Stallion EasyIO or EC8/32 support"
- depends on STALDRV && (ISA || EISA || PCI)
- help
- If you have an EasyIO or EasyConnection 8/32 multiport Stallion
- card, then this is for you; say Y. Make sure to read
- <file:Documentation/serial/stallion.txt>.
-
- To compile this driver as a module, choose M here: the
- module will be called stallion.
-
-config ISTALLION
- tristate "Stallion EC8/64, ONboard, Brumby support"
- depends on STALDRV && (ISA || EISA || PCI)
- help
- If you have an EasyConnection 8/64, ONboard, Brumby or Stallion
- serial multiport card, say Y here. Make sure to read
- <file:Documentation/serial/stallion.txt>.
-
- To compile this driver as a module, choose M here: the
- module will be called istallion.
-
-config NOZOMI
- tristate "HSDPA Broadband Wireless Data Card - Globe Trotter"
- depends on PCI && EXPERIMENTAL
- help
- If you have a HSDPA driver Broadband Wireless Data Card -
- Globe Trotter PCMCIA card, say Y here.
-
- To compile this driver as a module, choose M here, the module
- will be called nozomi.
-
-config A2232
- tristate "Commodore A2232 serial support (EXPERIMENTAL)"
- depends on EXPERIMENTAL && ZORRO && BROKEN
- ---help---
- This option supports the 2232 7-port serial card shipped with the
- Amiga 2000 and other Zorro-bus machines, dating from 1989. At
- a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip
- each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The
- ports were connected with 8 pin DIN connectors on the card bracket,
- for which 8 pin to DB25 adapters were supplied. The card also had
- jumpers internally to toggle various pinning configurations.
-
- This driver can be built as a module; but then "generic_serial"
- will also be built as a module. This has to be loaded before
- "ser_a2232". If you want to do this, answer M here.
-
config SGI_SNSC
bool "SGI Altix system controller communication support"
depends on (IA64_SGI_SN2 || IA64_GENERIC)
@@ -428,71 +51,6 @@ config SGI_MBCS
source "drivers/tty/serial/Kconfig"
-config UNIX98_PTYS
- bool "Unix98 PTY support" if EXPERT
- default y
- ---help---
- A pseudo terminal (PTY) is a software device consisting of two
- halves: a master and a slave. The slave device behaves identical to
- a physical terminal; the master device is used by a process to
- read data from and write data to the slave, thereby emulating a
- terminal. Typical programs for the master side are telnet servers
- and xterms.
-
- Linux has traditionally used the BSD-like names /dev/ptyxx for
- masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
- has a number of problems. The GNU C library glibc 2.1 and later,
- however, supports the Unix98 naming standard: in order to acquire a
- pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
- terminal is then made available to the process and the pseudo
- terminal slave can be accessed as /dev/pts/<number>. What was
- traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
-
- All modern Linux systems use the Unix98 ptys. Say Y unless
- you're on an embedded system and want to conserve memory.
-
-config DEVPTS_MULTIPLE_INSTANCES
- bool "Support multiple instances of devpts"
- depends on UNIX98_PTYS
- default n
- ---help---
- Enable support for multiple instances of devpts filesystem.
- If you want to have isolated PTY namespaces (eg: in containers),
- say Y here. Otherwise, say N. If enabled, each mount of devpts
- filesystem with the '-o newinstance' option will create an
- independent PTY namespace.
-
-config LEGACY_PTYS
- bool "Legacy (BSD) PTY support"
- default y
- ---help---
- A pseudo terminal (PTY) is a software device consisting of two
- halves: a master and a slave. The slave device behaves identical to
- a physical terminal; the master device is used by a process to
- read data from and write data to the slave, thereby emulating a
- terminal. Typical programs for the master side are telnet servers
- and xterms.
-
- Linux has traditionally used the BSD-like names /dev/ptyxx
- for masters and /dev/ttyxx for slaves of pseudo
- terminals. This scheme has a number of problems, including
- security. This option enables these legacy devices; on most
- systems, it is safe to say N.
-
-
-config LEGACY_PTY_COUNT
- int "Maximum number of legacy PTY in use"
- depends on LEGACY_PTYS
- range 0 256
- default "256"
- ---help---
- The maximum number of legacy PTYs that can be used at any one time.
- The default is 256, and should be more than enough. Embedded
- systems may want to reduce this to save memory.
-
- When not in use, each legacy PTY occupies 12 bytes on 32-bit
- architectures and 24 bytes on 64-bit architectures.
-
config TTY_PRINTK
bool "TTY driver to output user messages via printk"
depends on EXPERT
@@ -612,84 +170,7 @@ config PPDEV
If unsure, say N.
-config HVC_DRIVER
- bool
- help
- Generic "hypervisor virtual console" infrastructure for various
- hypervisors (pSeries, iSeries, Xen, lguest).
- It will automatically be selected if one of the back-end console drivers
- is selected.
-
-config HVC_IRQ
- bool
-
-config HVC_CONSOLE
- bool "pSeries Hypervisor Virtual Console support"
- depends on PPC_PSERIES
- select HVC_DRIVER
- select HVC_IRQ
- help
- pSeries machines when partitioned support a hypervisor virtual
- console. This driver allows each pSeries partition to have a console
- which is accessed via the HMC.
-
-config HVC_ISERIES
- bool "iSeries Hypervisor Virtual Console support"
- depends on PPC_ISERIES
- default y
- select HVC_DRIVER
- select HVC_IRQ
- select VIOPATH
- help
- iSeries machines support a hypervisor virtual console.
-
-config HVC_RTAS
- bool "IBM RTAS Console support"
- depends on PPC_RTAS
- select HVC_DRIVER
- help
- IBM Console device driver which makes use of RTAS
-
-config HVC_BEAT
- bool "Toshiba's Beat Hypervisor Console support"
- depends on PPC_CELLEB
- select HVC_DRIVER
- help
- Toshiba's Cell Reference Set Beat Console device driver
-
-config HVC_IUCV
- bool "z/VM IUCV Hypervisor console support (VM only)"
- depends on S390
- select HVC_DRIVER
- select IUCV
- default y
- help
- This driver provides a Hypervisor console (HVC) back-end to access
- a Linux (console) terminal via a z/VM IUCV communication path.
-
-config HVC_XEN
- bool "Xen Hypervisor Console support"
- depends on XEN
- select HVC_DRIVER
- select HVC_IRQ
- default y
- help
- Xen virtual console device driver
-
-config HVC_UDBG
- bool "udbg based fake hypervisor console"
- depends on PPC && EXPERIMENTAL
- select HVC_DRIVER
- default n
-
-config HVC_DCC
- bool "ARM JTAG DCC console"
- depends on ARM
- select HVC_DRIVER
- help
- This console uses the JTAG DCC on ARM to create a console under the HVC
- driver. This console is used through a JTAG only on ARM. If you don't have
- a JTAG then you probably don't want this option.
+source "drivers/tty/hvc/Kconfig"
config VIRTIO_CONSOLE
tristate "Virtio console"
@@ -707,23 +188,6 @@ config VIRTIO_CONSOLE
the port which can be used by udev scripts to create a
symlink to the device.
-config HVCS
- tristate "IBM Hypervisor Virtual Console Server support"
- depends on PPC_PSERIES && HVC_CONSOLE
- help
- Partitionable IBM Power5 ppc64 machines allow hosting of
- firmware virtual consoles from one Linux partition by
- another Linux partition. This driver allows console data
- from Linux partitions to be accessed through TTY device
- interfaces in the device tree of a Linux partition running
- this driver.
-
- To compile this driver as a module, choose M here: the
- module will be called hvcs. Additionally, this module
- will depend on arch specific APIs exported from hvcserver.ko
- which will also be compiled when this driver is built as a
- module.
-
config IBM_BSR
tristate "IBM POWER Barrier Synchronization Register support"
depends on PPC_PSERIES
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 8238f89f73c..057f65452e7 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -5,31 +5,7 @@
obj-y += mem.o random.o
obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
obj-y += misc.o
-obj-$(CONFIG_BFIN_JTAG_COMM) += bfin_jtag_comm.o
-obj-$(CONFIG_MVME147_SCC) += generic_serial.o vme_scc.o
-obj-$(CONFIG_MVME162_SCC) += generic_serial.o vme_scc.o
-obj-$(CONFIG_BVME6000_SCC) += generic_serial.o vme_scc.o
-obj-$(CONFIG_ROCKETPORT) += rocket.o
-obj-$(CONFIG_SERIAL167) += serial167.o
-obj-$(CONFIG_CYCLADES) += cyclades.o
-obj-$(CONFIG_STALLION) += stallion.o
-obj-$(CONFIG_ISTALLION) += istallion.o
-obj-$(CONFIG_NOZOMI) += nozomi.o
-obj-$(CONFIG_DIGIEPCA) += epca.o
-obj-$(CONFIG_SPECIALIX) += specialix.o
-obj-$(CONFIG_MOXA_INTELLIO) += moxa.o
-obj-$(CONFIG_A2232) += ser_a2232.o generic_serial.o
obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
-obj-$(CONFIG_MOXA_SMARTIO) += mxser.o
-obj-$(CONFIG_COMPUTONE) += ip2/
-obj-$(CONFIG_RISCOM8) += riscom8.o
-obj-$(CONFIG_ISI) += isicom.o
-obj-$(CONFIG_SYNCLINK) += synclink.o
-obj-$(CONFIG_SYNCLINKMP) += synclinkmp.o
-obj-$(CONFIG_SYNCLINK_GT) += synclink_gt.o
-obj-$(CONFIG_AMIGA_BUILTIN_SERIAL) += amiserial.o
-obj-$(CONFIG_SX) += sx.o generic_serial.o
-obj-$(CONFIG_RIO) += rio/ generic_serial.o
obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o
obj-$(CONFIG_RAW_DRIVER) += raw.o
obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
deleted file mode 100644
index 6ee3348bc3e..00000000000
--- a/drivers/char/amiserial.c
+++ /dev/null
@@ -1,2178 +0,0 @@
-/*
- * linux/drivers/char/amiserial.c
- *
- * Serial driver for the amiga builtin port.
- *
- * This code was created by taking serial.c version 4.30 from kernel
- * release 2.3.22, replacing all hardware related stuff with the
- * corresponding amiga hardware actions, and removing all irrelevant
- * code. As a consequence, it uses many of the constants and names
- * associated with the registers and bits of 16550 compatible UARTS -
- * but only to keep track of status, etc in the state variables. It
- * was done this was to make it easier to keep the code in line with
- * (non hardware specific) changes to serial.c.
- *
- * The port is registered with the tty driver as minor device 64, and
- * therefore other ports should should only use 65 upwards.
- *
- * Richard Lucock 28/12/99
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997,
- * 1998, 1999 Theodore Ts'o
- *
- */
-
-/*
- * Serial driver configuration section. Here are the various options:
- *
- * SERIAL_PARANOIA_CHECK
- * Check the magic number for the async_structure where
- * ever possible.
- */
-
-#include <linux/delay.h>
-
-#undef SERIAL_PARANOIA_CHECK
-#define SERIAL_DO_RESTART
-
-/* Set of debugging defines */
-
-#undef SERIAL_DEBUG_INTR
-#undef SERIAL_DEBUG_OPEN
-#undef SERIAL_DEBUG_FLOW
-#undef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
-
-/* Sanity checks */
-
-#if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
-#define DBG_CNT(s) printk("(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
- tty->name, (info->flags), serial_driver->refcount,info->count,tty->count,s)
-#else
-#define DBG_CNT(s)
-#endif
-
-/*
- * End of serial driver configuration section.
- */
-
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <linux/serial_reg.h>
-static char *serial_version = "4.30";
-
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/console.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/platform_device.h>
-
-#include <asm/setup.h>
-
-#include <asm/system.h>
-
-#include <asm/irq.h>
-
-#include <asm/amigahw.h>
-#include <asm/amigaints.h>
-
-#define custom amiga_custom
-static char *serial_name = "Amiga-builtin serial driver";
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-static struct async_struct *IRQ_ports;
-
-static unsigned char current_ctl_bits;
-
-static void change_speed(struct async_struct *info, struct ktermios *old);
-static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
-
-
-static struct serial_state rs_table[1];
-
-#define NR_PORTS ARRAY_SIZE(rs_table)
-
-#include <asm/uaccess.h>
-
-#define serial_isroot() (capable(CAP_SYS_ADMIN))
-
-
-static inline int serial_paranoia_check(struct async_struct *info,
- char *name, const char *routine)
-{
-#ifdef SERIAL_PARANOIA_CHECK
- static const char *badmagic =
- "Warning: bad magic number for serial struct (%s) in %s\n";
- static const char *badinfo =
- "Warning: null async_struct for (%s) in %s\n";
-
- if (!info) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (info->magic != SERIAL_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-#endif
- return 0;
-}
-
-/* some serial hardware definitions */
-#define SDR_OVRUN (1<<15)
-#define SDR_RBF (1<<14)
-#define SDR_TBE (1<<13)
-#define SDR_TSRE (1<<12)
-
-#define SERPER_PARENB (1<<15)
-
-#define AC_SETCLR (1<<15)
-#define AC_UARTBRK (1<<11)
-
-#define SER_DTR (1<<7)
-#define SER_RTS (1<<6)
-#define SER_DCD (1<<5)
-#define SER_CTS (1<<4)
-#define SER_DSR (1<<3)
-
-static __inline__ void rtsdtr_ctrl(int bits)
-{
- ciab.pra = ((bits & (SER_RTS | SER_DTR)) ^ (SER_RTS | SER_DTR)) | (ciab.pra & ~(SER_RTS | SER_DTR));
-}
-
-/*
- * ------------------------------------------------------------
- * rs_stop() and rs_start()
- *
- * This routines are called before setting or resetting tty->stopped.
- * They enable or disable transmitter interrupts, as necessary.
- * ------------------------------------------------------------
- */
-static void rs_stop(struct tty_struct *tty)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_stop"))
- return;
-
- local_irq_save(flags);
- if (info->IER & UART_IER_THRI) {
- info->IER &= ~UART_IER_THRI;
- /* disable Tx interrupt and remove any pending interrupts */
- custom.intena = IF_TBE;
- mb();
- custom.intreq = IF_TBE;
- mb();
- }
- local_irq_restore(flags);
-}
-
-static void rs_start(struct tty_struct *tty)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_start"))
- return;
-
- local_irq_save(flags);
- if (info->xmit.head != info->xmit.tail
- && info->xmit.buf
- && !(info->IER & UART_IER_THRI)) {
- info->IER |= UART_IER_THRI;
- custom.intena = IF_SETCLR | IF_TBE;
- mb();
- /* set a pending Tx Interrupt, transmitter should restart now */
- custom.intreq = IF_SETCLR | IF_TBE;
- mb();
- }
- local_irq_restore(flags);
-}
-
-/*
- * ----------------------------------------------------------------------
- *
- * Here starts the interrupt handling routines. All of the following
- * subroutines are declared as inline and are folded into
- * rs_interrupt(). They were separated out for readability's sake.
- *
- * Note: rs_interrupt() is a "fast" interrupt, which means that it
- * runs with interrupts turned off. People who may want to modify
- * rs_interrupt() should try to keep the interrupt handler as fast as
- * possible. After you are done making modifications, it is not a bad
- * idea to do:
- *
- * gcc -S -DKERNEL -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer serial.c
- *
- * and look at the resulting assemble code in serial.s.
- *
- * - Ted Ts'o (tytso@mit.edu), 7-Mar-93
- * -----------------------------------------------------------------------
- */
-
-/*
- * This routine is used by the interrupt handler to schedule
- * processing in the software interrupt portion of the driver.
- */
-static void rs_sched_event(struct async_struct *info,
- int event)
-{
- info->event |= 1 << event;
- tasklet_schedule(&info->tlet);
-}
-
-static void receive_chars(struct async_struct *info)
-{
- int status;
- int serdatr;
- struct tty_struct *tty = info->tty;
- unsigned char ch, flag;
- struct async_icount *icount;
- int oe = 0;
-
- icount = &info->state->icount;
-
- status = UART_LSR_DR; /* We obviously have a character! */
- serdatr = custom.serdatr;
- mb();
- custom.intreq = IF_RBF;
- mb();
-
- if((serdatr & 0x1ff) == 0)
- status |= UART_LSR_BI;
- if(serdatr & SDR_OVRUN)
- status |= UART_LSR_OE;
-
- ch = serdatr & 0xff;
- icount->rx++;
-
-#ifdef SERIAL_DEBUG_INTR
- printk("DR%02x:%02x...", ch, status);
-#endif
- flag = TTY_NORMAL;
-
- /*
- * We don't handle parity or frame errors - but I have left
- * the code in, since I'm not sure that the errors can't be
- * detected.
- */
-
- if (status & (UART_LSR_BI | UART_LSR_PE |
- UART_LSR_FE | UART_LSR_OE)) {
- /*
- * For statistics only
- */
- if (status & UART_LSR_BI) {
- status &= ~(UART_LSR_FE | UART_LSR_PE);
- icount->brk++;
- } else if (status & UART_LSR_PE)
- icount->parity++;
- else if (status & UART_LSR_FE)
- icount->frame++;
- if (status & UART_LSR_OE)
- icount->overrun++;
-
- /*
- * Now check to see if character should be
- * ignored, and mask off conditions which
- * should be ignored.
- */
- if (status & info->ignore_status_mask)
- goto out;
-
- status &= info->read_status_mask;
-
- if (status & (UART_LSR_BI)) {
-#ifdef SERIAL_DEBUG_INTR
- printk("handling break....");
-#endif
- flag = TTY_BREAK;
- if (info->flags & ASYNC_SAK)
- do_SAK(tty);
- } else if (status & UART_LSR_PE)
- flag = TTY_PARITY;
- else if (status & UART_LSR_FE)
- flag = TTY_FRAME;
- if (status & UART_LSR_OE) {
- /*
- * Overrun is special, since it's
- * reported immediately, and doesn't
- * affect the current character
- */
- oe = 1;
- }
- }
- tty_insert_flip_char(tty, ch, flag);
- if (oe == 1)
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- tty_flip_buffer_push(tty);
-out:
- return;
-}
-
-static void transmit_chars(struct async_struct *info)
-{
- custom.intreq = IF_TBE;
- mb();
- if (info->x_char) {
- custom.serdat = info->x_char | 0x100;
- mb();
- info->state->icount.tx++;
- info->x_char = 0;
- return;
- }
- if (info->xmit.head == info->xmit.tail
- || info->tty->stopped
- || info->tty->hw_stopped) {
- info->IER &= ~UART_IER_THRI;
- custom.intena = IF_TBE;
- mb();
- return;
- }
-
- custom.serdat = info->xmit.buf[info->xmit.tail++] | 0x100;
- mb();
- info->xmit.tail = info->xmit.tail & (SERIAL_XMIT_SIZE-1);
- info->state->icount.tx++;
-
- if (CIRC_CNT(info->xmit.head,
- info->xmit.tail,
- SERIAL_XMIT_SIZE) < WAKEUP_CHARS)
- rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
-
-#ifdef SERIAL_DEBUG_INTR
- printk("THRE...");
-#endif
- if (info->xmit.head == info->xmit.tail) {
- custom.intena = IF_TBE;
- mb();
- info->IER &= ~UART_IER_THRI;
- }
-}
-
-static void check_modem_status(struct async_struct *info)
-{
- unsigned char status = ciab.pra & (SER_DCD | SER_CTS | SER_DSR);
- unsigned char dstatus;
- struct async_icount *icount;
-
- /* Determine bits that have changed */
- dstatus = status ^ current_ctl_bits;
- current_ctl_bits = status;
-
- if (dstatus) {
- icount = &info->state->icount;
- /* update input line counters */
- if (dstatus & SER_DSR)
- icount->dsr++;
- if (dstatus & SER_DCD) {
- icount->dcd++;
-#ifdef CONFIG_HARD_PPS
- if ((info->flags & ASYNC_HARDPPS_CD) &&
- !(status & SER_DCD))
- hardpps();
-#endif
- }
- if (dstatus & SER_CTS)
- icount->cts++;
- wake_up_interruptible(&info->delta_msr_wait);
- }
-
- if ((info->flags & ASYNC_CHECK_CD) && (dstatus & SER_DCD)) {
-#if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR))
- printk("ttyS%d CD now %s...", info->line,
- (!(status & SER_DCD)) ? "on" : "off");
-#endif
- if (!(status & SER_DCD))
- wake_up_interruptible(&info->open_wait);
- else {
-#ifdef SERIAL_DEBUG_OPEN
- printk("doing serial hangup...");
-#endif
- if (info->tty)
- tty_hangup(info->tty);
- }
- }
- if (info->flags & ASYNC_CTS_FLOW) {
- if (info->tty->hw_stopped) {
- if (!(status & SER_CTS)) {
-#if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
- printk("CTS tx start...");
-#endif
- info->tty->hw_stopped = 0;
- info->IER |= UART_IER_THRI;
- custom.intena = IF_SETCLR | IF_TBE;
- mb();
- /* set a pending Tx Interrupt, transmitter should restart now */
- custom.intreq = IF_SETCLR | IF_TBE;
- mb();
- rs_sched_event(info, RS_EVENT_WRITE_WAKEUP);
- return;
- }
- } else {
- if ((status & SER_CTS)) {
-#if (defined(SERIAL_DEBUG_INTR) || defined(SERIAL_DEBUG_FLOW))
- printk("CTS tx stop...");
-#endif
- info->tty->hw_stopped = 1;
- info->IER &= ~UART_IER_THRI;
- /* disable Tx interrupt and remove any pending interrupts */
- custom.intena = IF_TBE;
- mb();
- custom.intreq = IF_TBE;
- mb();
- }
- }
- }
-}
-
-static irqreturn_t ser_vbl_int( int irq, void *data)
-{
- /* vbl is just a periodic interrupt we tie into to update modem status */
- struct async_struct * info = IRQ_ports;
- /*
- * TBD - is it better to unregister from this interrupt or to
- * ignore it if MSI is clear ?
- */
- if(info->IER & UART_IER_MSI)
- check_modem_status(info);
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ser_rx_int(int irq, void *dev_id)
-{
- struct async_struct * info;
-
-#ifdef SERIAL_DEBUG_INTR
- printk("ser_rx_int...");
-#endif
-
- info = IRQ_ports;
- if (!info || !info->tty)
- return IRQ_NONE;
-
- receive_chars(info);
- info->last_active = jiffies;
-#ifdef SERIAL_DEBUG_INTR
- printk("end.\n");
-#endif
- return IRQ_HANDLED;
-}
-
-static irqreturn_t ser_tx_int(int irq, void *dev_id)
-{
- struct async_struct * info;
-
- if (custom.serdatr & SDR_TBE) {
-#ifdef SERIAL_DEBUG_INTR
- printk("ser_tx_int...");
-#endif
-
- info = IRQ_ports;
- if (!info || !info->tty)
- return IRQ_NONE;
-
- transmit_chars(info);
- info->last_active = jiffies;
-#ifdef SERIAL_DEBUG_INTR
- printk("end.\n");
-#endif
- }
- return IRQ_HANDLED;
-}
-
-/*
- * -------------------------------------------------------------------
- * Here ends the serial interrupt routines.
- * -------------------------------------------------------------------
- */
-
-/*
- * This routine is used to handle the "bottom half" processing for the
- * serial driver, known also the "software interrupt" processing.
- * This processing is done at the kernel interrupt level, after the
- * rs_interrupt() has returned, BUT WITH INTERRUPTS TURNED ON. This
- * is where time-consuming activities which can not be done in the
- * interrupt driver proper are done; the interrupt driver schedules
- * them using rs_sched_event(), and they get done here.
- */
-
-static void do_softint(unsigned long private_)
-{
- struct async_struct *info = (struct async_struct *) private_;
- struct tty_struct *tty;
-
- tty = info->tty;
- if (!tty)
- return;
-
- if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event))
- tty_wakeup(tty);
-}
-
-/*
- * ---------------------------------------------------------------
- * Low level utility subroutines for the serial driver: routines to
- * figure out the appropriate timeout for an interrupt chain, routines
- * to initialize and startup a serial port, and routines to shutdown a
- * serial port. Useful stuff like that.
- * ---------------------------------------------------------------
- */
-
-static int startup(struct async_struct * info)
-{
- unsigned long flags;
- int retval=0;
- unsigned long page;
-
- page = get_zeroed_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
-
- local_irq_save(flags);
-
- if (info->flags & ASYNC_INITIALIZED) {
- free_page(page);
- goto errout;
- }
-
- if (info->xmit.buf)
- free_page(page);
- else
- info->xmit.buf = (unsigned char *) page;
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("starting up ttys%d ...", info->line);
-#endif
-
- /* Clear anything in the input buffer */
-
- custom.intreq = IF_RBF;
- mb();
-
- retval = request_irq(IRQ_AMIGA_VERTB, ser_vbl_int, 0, "serial status", info);
- if (retval) {
- if (serial_isroot()) {
- if (info->tty)
- set_bit(TTY_IO_ERROR,
- &info->tty->flags);
- retval = 0;
- }
- goto errout;
- }
-
- /* enable both Rx and Tx interrupts */
- custom.intena = IF_SETCLR | IF_RBF | IF_TBE;
- mb();
- info->IER = UART_IER_MSI;
-
- /* remember current state of the DCD and CTS bits */
- current_ctl_bits = ciab.pra & (SER_DCD | SER_CTS | SER_DSR);
-
- IRQ_ports = info;
-
- info->MCR = 0;
- if (info->tty->termios->c_cflag & CBAUD)
- info->MCR = SER_DTR | SER_RTS;
- rtsdtr_ctrl(info->MCR);
-
- if (info->tty)
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- info->xmit.head = info->xmit.tail = 0;
-
- /*
- * Set up the tty->alt_speed kludge
- */
- if (info->tty) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
- }
-
- /*
- * and set the speed of the serial port
- */
- change_speed(info, NULL);
-
- info->flags |= ASYNC_INITIALIZED;
- local_irq_restore(flags);
- return 0;
-
-errout:
- local_irq_restore(flags);
- return retval;
-}
-
-/*
- * This routine will shutdown a serial port; interrupts are disabled, and
- * DTR is dropped if the hangup on close termio flag is on.
- */
-static void shutdown(struct async_struct * info)
-{
- unsigned long flags;
- struct serial_state *state;
-
- if (!(info->flags & ASYNC_INITIALIZED))
- return;
-
- state = info->state;
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("Shutting down serial port %d ....\n", info->line);
-#endif
-
- local_irq_save(flags); /* Disable interrupts */
-
- /*
- * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
- * here so the queue might never be waken up
- */
- wake_up_interruptible(&info->delta_msr_wait);
-
- IRQ_ports = NULL;
-
- /*
- * Free the IRQ, if necessary
- */
- free_irq(IRQ_AMIGA_VERTB, info);
-
- if (info->xmit.buf) {
- free_page((unsigned long) info->xmit.buf);
- info->xmit.buf = NULL;
- }
-
- info->IER = 0;
- custom.intena = IF_RBF | IF_TBE;
- mb();
-
- /* disable break condition */
- custom.adkcon = AC_UARTBRK;
- mb();
-
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
- info->MCR &= ~(SER_DTR|SER_RTS);
- rtsdtr_ctrl(info->MCR);
-
- if (info->tty)
- set_bit(TTY_IO_ERROR, &info->tty->flags);
-
- info->flags &= ~ASYNC_INITIALIZED;
- local_irq_restore(flags);
-}
-
-
-/*
- * This routine is called to set the UART divisor registers to match
- * the specified baud rate for a serial port.
- */
-static void change_speed(struct async_struct *info,
- struct ktermios *old_termios)
-{
- int quot = 0, baud_base, baud;
- unsigned cflag, cval = 0;
- int bits;
- unsigned long flags;
-
- if (!info->tty || !info->tty->termios)
- return;
- cflag = info->tty->termios->c_cflag;
-
- /* Byte size is always 8 bits plus parity bit if requested */
-
- cval = 3; bits = 10;
- if (cflag & CSTOPB) {
- cval |= 0x04;
- bits++;
- }
- if (cflag & PARENB) {
- cval |= UART_LCR_PARITY;
- bits++;
- }
- if (!(cflag & PARODD))
- cval |= UART_LCR_EPAR;
-#ifdef CMSPAR
- if (cflag & CMSPAR)
- cval |= UART_LCR_SPAR;
-#endif
-
- /* Determine divisor based on baud rate */
- baud = tty_get_baud_rate(info->tty);
- if (!baud)
- baud = 9600; /* B0 transition handled in rs_set_termios */
- baud_base = info->state->baud_base;
- if (baud == 38400 &&
- ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
- quot = info->state->custom_divisor;
- else {
- if (baud == 134)
- /* Special case since 134 is really 134.5 */
- quot = (2*baud_base / 269);
- else if (baud)
- quot = baud_base / baud;
- }
- /* If the quotient is zero refuse the change */
- if (!quot && old_termios) {
- /* FIXME: Will need updating for new tty in the end */
- info->tty->termios->c_cflag &= ~CBAUD;
- info->tty->termios->c_cflag |= (old_termios->c_cflag & CBAUD);
- baud = tty_get_baud_rate(info->tty);
- if (!baud)
- baud = 9600;
- if (baud == 38400 &&
- ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
- quot = info->state->custom_divisor;
- else {
- if (baud == 134)
- /* Special case since 134 is really 134.5 */
- quot = (2*baud_base / 269);
- else if (baud)
- quot = baud_base / baud;
- }
- }
- /* As a last resort, if the quotient is zero, default to 9600 bps */
- if (!quot)
- quot = baud_base / 9600;
- info->quot = quot;
- info->timeout = ((info->xmit_fifo_size*HZ*bits*quot) / baud_base);
- info->timeout += HZ/50; /* Add .02 seconds of slop */
-
- /* CTS flow control flag and modem status interrupts */
- info->IER &= ~UART_IER_MSI;
- if (info->flags & ASYNC_HARDPPS_CD)
- info->IER |= UART_IER_MSI;
- if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
- info->IER |= UART_IER_MSI;
- } else
- info->flags &= ~ASYNC_CTS_FLOW;
- if (cflag & CLOCAL)
- info->flags &= ~ASYNC_CHECK_CD;
- else {
- info->flags |= ASYNC_CHECK_CD;
- info->IER |= UART_IER_MSI;
- }
- /* TBD:
- * Does clearing IER_MSI imply that we should disable the VBL interrupt ?
- */
-
- /*
- * Set up parity check flag
- */
-
- info->read_status_mask = UART_LSR_OE | UART_LSR_DR;
- if (I_INPCK(info->tty))
- info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
- if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
- info->read_status_mask |= UART_LSR_BI;
-
- /*
- * Characters to ignore
- */
- info->ignore_status_mask = 0;
- if (I_IGNPAR(info->tty))
- info->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
- if (I_IGNBRK(info->tty)) {
- info->ignore_status_mask |= UART_LSR_BI;
- /*
- * If we're ignore parity and break indicators, ignore
- * overruns too. (For real raw support).
- */
- if (I_IGNPAR(info->tty))
- info->ignore_status_mask |= UART_LSR_OE;
- }
- /*
- * !!! ignore all characters if CREAD is not set
- */
- if ((cflag & CREAD) == 0)
- info->ignore_status_mask |= UART_LSR_DR;
- local_irq_save(flags);
-
- {
- short serper;
-
- /* Set up the baud rate */
- serper = quot - 1;
-
- /* Enable or disable parity bit */
-
- if(cval & UART_LCR_PARITY)
- serper |= (SERPER_PARENB);
-
- custom.serper = serper;
- mb();
- }
-
- info->LCR = cval; /* Save LCR */
- local_irq_restore(flags);
-}
-
-static int rs_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct async_struct *info;
- unsigned long flags;
-
- info = tty->driver_data;
-
- if (serial_paranoia_check(info, tty->name, "rs_put_char"))
- return 0;
-
- if (!info->xmit.buf)
- return 0;
-
- local_irq_save(flags);
- if (CIRC_SPACE(info->xmit.head,
- info->xmit.tail,
- SERIAL_XMIT_SIZE) == 0) {
- local_irq_restore(flags);
- return 0;
- }
-
- info->xmit.buf[info->xmit.head++] = ch;
- info->xmit.head &= SERIAL_XMIT_SIZE-1;
- local_irq_restore(flags);
- return 1;
-}
-
-static void rs_flush_chars(struct tty_struct *tty)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_flush_chars"))
- return;
-
- if (info->xmit.head == info->xmit.tail
- || tty->stopped
- || tty->hw_stopped
- || !info->xmit.buf)
- return;
-
- local_irq_save(flags);
- info->IER |= UART_IER_THRI;
- custom.intena = IF_SETCLR | IF_TBE;
- mb();
- /* set a pending Tx Interrupt, transmitter should restart now */
- custom.intreq = IF_SETCLR | IF_TBE;
- mb();
- local_irq_restore(flags);
-}
-
-static int rs_write(struct tty_struct * tty, const unsigned char *buf, int count)
-{
- int c, ret = 0;
- struct async_struct *info;
- unsigned long flags;
-
- info = tty->driver_data;
-
- if (serial_paranoia_check(info, tty->name, "rs_write"))
- return 0;
-
- if (!info->xmit.buf)
- return 0;
-
- local_irq_save(flags);
- while (1) {
- c = CIRC_SPACE_TO_END(info->xmit.head,
- info->xmit.tail,
- SERIAL_XMIT_SIZE);
- if (count < c)
- c = count;
- if (c <= 0) {
- break;
- }
- memcpy(info->xmit.buf + info->xmit.head, buf, c);
- info->xmit.head = ((info->xmit.head + c) &
- (SERIAL_XMIT_SIZE-1));
- buf += c;
- count -= c;
- ret += c;
- }
- local_irq_restore(flags);
-
- if (info->xmit.head != info->xmit.tail
- && !tty->stopped
- && !tty->hw_stopped
- && !(info->IER & UART_IER_THRI)) {
- info->IER |= UART_IER_THRI;
- local_irq_disable();
- custom.intena = IF_SETCLR | IF_TBE;
- mb();
- /* set a pending Tx Interrupt, transmitter should restart now */
- custom.intreq = IF_SETCLR | IF_TBE;
- mb();
- local_irq_restore(flags);
- }
- return ret;
-}
-
-static int rs_write_room(struct tty_struct *tty)
-{
- struct async_struct *info = tty->driver_data;
-
- if (serial_paranoia_check(info, tty->name, "rs_write_room"))
- return 0;
- return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
-}
-
-static int rs_chars_in_buffer(struct tty_struct *tty)
-{
- struct async_struct *info = tty->driver_data;
-
- if (serial_paranoia_check(info, tty->name, "rs_chars_in_buffer"))
- return 0;
- return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
-}
-
-static void rs_flush_buffer(struct tty_struct *tty)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_flush_buffer"))
- return;
- local_irq_save(flags);
- info->xmit.head = info->xmit.tail = 0;
- local_irq_restore(flags);
- tty_wakeup(tty);
-}
-
-/*
- * This function is used to send a high-priority XON/XOFF character to
- * the device
- */
-static void rs_send_xchar(struct tty_struct *tty, char ch)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_send_char"))
- return;
-
- info->x_char = ch;
- if (ch) {
- /* Make sure transmit interrupts are on */
-
- /* Check this ! */
- local_irq_save(flags);
- if(!(custom.intenar & IF_TBE)) {
- custom.intena = IF_SETCLR | IF_TBE;
- mb();
- /* set a pending Tx Interrupt, transmitter should restart now */
- custom.intreq = IF_SETCLR | IF_TBE;
- mb();
- }
- local_irq_restore(flags);
-
- info->IER |= UART_IER_THRI;
- }
-}
-
-/*
- * ------------------------------------------------------------
- * rs_throttle()
- *
- * This routine is called by the upper-layer tty layer to signal that
- * incoming characters should be throttled.
- * ------------------------------------------------------------
- */
-static void rs_throttle(struct tty_struct * tty)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("throttle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
-#endif
-
- if (serial_paranoia_check(info, tty->name, "rs_throttle"))
- return;
-
- if (I_IXOFF(tty))
- rs_send_xchar(tty, STOP_CHAR(tty));
-
- if (tty->termios->c_cflag & CRTSCTS)
- info->MCR &= ~SER_RTS;
-
- local_irq_save(flags);
- rtsdtr_ctrl(info->MCR);
- local_irq_restore(flags);
-}
-
-static void rs_unthrottle(struct tty_struct * tty)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
-#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("unthrottle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
-#endif
-
- if (serial_paranoia_check(info, tty->name, "rs_unthrottle"))
- return;
-
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else
- rs_send_xchar(tty, START_CHAR(tty));
- }
- if (tty->termios->c_cflag & CRTSCTS)
- info->MCR |= SER_RTS;
- local_irq_save(flags);
- rtsdtr_ctrl(info->MCR);
- local_irq_restore(flags);
-}
-
-/*
- * ------------------------------------------------------------
- * rs_ioctl() and friends
- * ------------------------------------------------------------
- */
-
-static int get_serial_info(struct async_struct * info,
- struct serial_struct __user * retinfo)
-{
- struct serial_struct tmp;
- struct serial_state *state = info->state;
-
- if (!retinfo)
- return -EFAULT;
- memset(&tmp, 0, sizeof(tmp));
- tty_lock();
- tmp.type = state->type;
- tmp.line = state->line;
- tmp.port = state->port;
- tmp.irq = state->irq;
- tmp.flags = state->flags;
- tmp.xmit_fifo_size = state->xmit_fifo_size;
- tmp.baud_base = state->baud_base;
- tmp.close_delay = state->close_delay;
- tmp.closing_wait = state->closing_wait;
- tmp.custom_divisor = state->custom_divisor;
- tty_unlock();
- if (copy_to_user(retinfo,&tmp,sizeof(*retinfo)))
- return -EFAULT;
- return 0;
-}
-
-static int set_serial_info(struct async_struct * info,
- struct serial_struct __user * new_info)
-{
- struct serial_struct new_serial;
- struct serial_state old_state, *state;
- unsigned int change_irq,change_port;
- int retval = 0;
-
- if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
- return -EFAULT;
-
- tty_lock();
- state = info->state;
- old_state = *state;
-
- change_irq = new_serial.irq != state->irq;
- change_port = (new_serial.port != state->port);
- if(change_irq || change_port || (new_serial.xmit_fifo_size != state->xmit_fifo_size)) {
- tty_unlock();
- return -EINVAL;
- }
-
- if (!serial_isroot()) {
- if ((new_serial.baud_base != state->baud_base) ||
- (new_serial.close_delay != state->close_delay) ||
- (new_serial.xmit_fifo_size != state->xmit_fifo_size) ||
- ((new_serial.flags & ~ASYNC_USR_MASK) !=
- (state->flags & ~ASYNC_USR_MASK)))
- return -EPERM;
- state->flags = ((state->flags & ~ASYNC_USR_MASK) |
- (new_serial.flags & ASYNC_USR_MASK));
- info->flags = ((info->flags & ~ASYNC_USR_MASK) |
- (new_serial.flags & ASYNC_USR_MASK));
- state->custom_divisor = new_serial.custom_divisor;
- goto check_and_exit;
- }
-
- if (new_serial.baud_base < 9600) {
- tty_unlock();
- return -EINVAL;
- }
-
- /*
- * OK, past this point, all the error checking has been done.
- * At this point, we start making changes.....
- */
-
- state->baud_base = new_serial.baud_base;
- state->flags = ((state->flags & ~ASYNC_FLAGS) |
- (new_serial.flags & ASYNC_FLAGS));
- info->flags = ((state->flags & ~ASYNC_INTERNAL_FLAGS) |
- (info->flags & ASYNC_INTERNAL_FLAGS));
- state->custom_divisor = new_serial.custom_divisor;
- state->close_delay = new_serial.close_delay * HZ/100;
- state->closing_wait = new_serial.closing_wait * HZ/100;
- info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
-check_and_exit:
- if (info->flags & ASYNC_INITIALIZED) {
- if (((old_state.flags & ASYNC_SPD_MASK) !=
- (state->flags & ASYNC_SPD_MASK)) ||
- (old_state.custom_divisor != state->custom_divisor)) {
- if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- info->tty->alt_speed = 57600;
- if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- info->tty->alt_speed = 115200;
- if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- info->tty->alt_speed = 230400;
- if ((state->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- info->tty->alt_speed = 460800;
- change_speed(info, NULL);
- }
- } else
- retval = startup(info);
- tty_unlock();
- return retval;
-}
-
-
-/*
- * get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- * is emptied. On bus types like RS485, the transmitter must
- * release the bus after transmitting. This must be done when
- * the transmit shift register is empty, not be done when the
- * transmit holding register is empty. This functionality
- * allows an RS485 driver to be written in user space.
- */
-static int get_lsr_info(struct async_struct * info, unsigned int __user *value)
-{
- unsigned char status;
- unsigned int result;
- unsigned long flags;
-
- local_irq_save(flags);
- status = custom.serdatr;
- mb();
- local_irq_restore(flags);
- result = ((status & SDR_TSRE) ? TIOCSER_TEMT : 0);
- if (copy_to_user(value, &result, sizeof(int)))
- return -EFAULT;
- return 0;
-}
-
-
-static int rs_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct async_struct * info = tty->driver_data;
- unsigned char control, status;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
- return -ENODEV;
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- control = info->MCR;
- local_irq_save(flags);
- status = ciab.pra;
- local_irq_restore(flags);
- return ((control & SER_RTS) ? TIOCM_RTS : 0)
- | ((control & SER_DTR) ? TIOCM_DTR : 0)
- | (!(status & SER_DCD) ? TIOCM_CAR : 0)
- | (!(status & SER_DSR) ? TIOCM_DSR : 0)
- | (!(status & SER_CTS) ? TIOCM_CTS : 0);
-}
-
-static int rs_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct async_struct * info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
- return -ENODEV;
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- local_irq_save(flags);
- if (set & TIOCM_RTS)
- info->MCR |= SER_RTS;
- if (set & TIOCM_DTR)
- info->MCR |= SER_DTR;
- if (clear & TIOCM_RTS)
- info->MCR &= ~SER_RTS;
- if (clear & TIOCM_DTR)
- info->MCR &= ~SER_DTR;
- rtsdtr_ctrl(info->MCR);
- local_irq_restore(flags);
- return 0;
-}
-
-/*
- * rs_break() --- routine which turns the break handling on or off
- */
-static int rs_break(struct tty_struct *tty, int break_state)
-{
- struct async_struct * info = tty->driver_data;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_break"))
- return -EINVAL;
-
- local_irq_save(flags);
- if (break_state == -1)
- custom.adkcon = AC_SETCLR | AC_UARTBRK;
- else
- custom.adkcon = AC_UARTBRK;
- mb();
- local_irq_restore(flags);
- return 0;
-}
-
-/*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- * RI where only 0->1 is counted.
- */
-static int rs_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-{
- struct async_struct *info = tty->driver_data;
- struct async_icount cnow;
- unsigned long flags;
-
- local_irq_save(flags);
- cnow = info->state->icount;
- local_irq_restore(flags);
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->frame = cnow.frame;
- icount->overrun = cnow.overrun;
- icount->parity = cnow.parity;
- icount->brk = cnow.brk;
- icount->buf_overrun = cnow.buf_overrun;
-
- return 0;
-}
-
-static int rs_ioctl(struct tty_struct *tty, struct file * file,
- unsigned int cmd, unsigned long arg)
-{
- struct async_struct * info = tty->driver_data;
- struct async_icount cprev, cnow; /* kernel counter temps */
- void __user *argp = (void __user *)arg;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, "rs_ioctl"))
- return -ENODEV;
-
- if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
- (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
- (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
- }
-
- switch (cmd) {
- case TIOCGSERIAL:
- return get_serial_info(info, argp);
- case TIOCSSERIAL:
- return set_serial_info(info, argp);
- case TIOCSERCONFIG:
- return 0;
-
- case TIOCSERGETLSR: /* Get line status register */
- return get_lsr_info(info, argp);
-
- case TIOCSERGSTRUCT:
- if (copy_to_user(argp,
- info, sizeof(struct async_struct)))
- return -EFAULT;
- return 0;
-
- /*
- * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
- * - mask passed in arg for lines of interest
- * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
- * Caller should use TIOCGICOUNT to see which one it was
- */
- case TIOCMIWAIT:
- local_irq_save(flags);
- /* note the counters on entry */
- cprev = info->state->icount;
- local_irq_restore(flags);
- while (1) {
- interruptible_sleep_on(&info->delta_msr_wait);
- /* see if a signal did it */
- if (signal_pending(current))
- return -ERESTARTSYS;
- local_irq_save(flags);
- cnow = info->state->icount; /* atomic copy */
- local_irq_restore(flags);
- if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
- cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
- return -EIO; /* no change => error */
- if ( ((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
- ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
- ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
- ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
- return 0;
- }
- cprev = cnow;
- }
- /* NOTREACHED */
-
- case TIOCSERGWILD:
- case TIOCSERSWILD:
- /* "setserial -W" is called in Debian boot */
- printk ("TIOCSER?WILD ioctl obsolete, ignored.\n");
- return 0;
-
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static void rs_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct async_struct *info = tty->driver_data;
- unsigned long flags;
- unsigned int cflag = tty->termios->c_cflag;
-
- change_speed(info, old_termios);
-
- /* Handle transition to B0 status */
- if ((old_termios->c_cflag & CBAUD) &&
- !(cflag & CBAUD)) {
- info->MCR &= ~(SER_DTR|SER_RTS);
- local_irq_save(flags);
- rtsdtr_ctrl(info->MCR);
- local_irq_restore(flags);
- }
-
- /* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) &&
- (cflag & CBAUD)) {
- info->MCR |= SER_DTR;
- if (!(tty->termios->c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &tty->flags)) {
- info->MCR |= SER_RTS;
- }
- local_irq_save(flags);
- rtsdtr_ctrl(info->MCR);
- local_irq_restore(flags);
- }
-
- /* Handle turning off CRTSCTS */
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- rs_start(tty);
- }
-
-#if 0
- /*
- * No need to wake up processes in open wait, since they
- * sample the CLOCAL flag once, and don't recheck it.
- * XXX It's not clear whether the current behavior is correct
- * or not. Hence, this may change.....
- */
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->open_wait);
-#endif
-}
-
-/*
- * ------------------------------------------------------------
- * rs_close()
- *
- * This routine is called when the serial port gets closed. First, we
- * wait for the last remaining data to be sent. Then, we unlink its
- * async structure from the interrupt chain if necessary, and we free
- * that IRQ if nothing is left in the chain.
- * ------------------------------------------------------------
- */
-static void rs_close(struct tty_struct *tty, struct file * filp)
-{
- struct async_struct * info = tty->driver_data;
- struct serial_state *state;
- unsigned long flags;
-
- if (!info || serial_paranoia_check(info, tty->name, "rs_close"))
- return;
-
- state = info->state;
-
- local_irq_save(flags);
-
- if (tty_hung_up_p(filp)) {
- DBG_CNT("before DEC-hung");
- local_irq_restore(flags);
- return;
- }
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("rs_close ttys%d, count = %d\n", info->line, state->count);
-#endif
- if ((tty->count == 1) && (state->count != 1)) {
- /*
- * Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. state->count should always
- * be one in these conditions. If it's greater than
- * one, we've got real problems, since it means the
- * serial port won't be shutdown.
- */
- printk("rs_close: bad serial port count; tty->count is 1, "
- "state->count is %d\n", state->count);
- state->count = 1;
- }
- if (--state->count < 0) {
- printk("rs_close: bad serial port count for ttys%d: %d\n",
- info->line, state->count);
- state->count = 0;
- }
- if (state->count) {
- DBG_CNT("before DEC-2");
- local_irq_restore(flags);
- return;
- }
- info->flags |= ASYNC_CLOSING;
- /*
- * Now we wait for the transmit buffer to clear; and we notify
- * the line discipline to only process XON/XOFF characters.
- */
- tty->closing = 1;
- if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, info->closing_wait);
- /*
- * At this point we stop accepting input. To do this, we
- * disable the receive line status interrupts, and tell the
- * interrupt driver to stop checking the data ready bit in the
- * line status register.
- */
- info->read_status_mask &= ~UART_LSR_DR;
- if (info->flags & ASYNC_INITIALIZED) {
- /* disable receive interrupts */
- custom.intena = IF_RBF;
- mb();
- /* clear any pending receive interrupt */
- custom.intreq = IF_RBF;
- mb();
-
- /*
- * Before we drop DTR, make sure the UART transmitter
- * has completely drained; this is especially
- * important if there is a transmit FIFO!
- */
- rs_wait_until_sent(tty, info->timeout);
- }
- shutdown(info);
- rs_flush_buffer(tty);
-
- tty_ldisc_flush(tty);
- tty->closing = 0;
- info->event = 0;
- info->tty = NULL;
- if (info->blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs(info->close_delay));
- }
- wake_up_interruptible(&info->open_wait);
- }
- info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&info->close_wait);
- local_irq_restore(flags);
-}
-
-/*
- * rs_wait_until_sent() --- wait until the transmitter is empty
- */
-static void rs_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- struct async_struct * info = tty->driver_data;
- unsigned long orig_jiffies, char_time;
- int tty_was_locked = tty_locked();
- int lsr;
-
- if (serial_paranoia_check(info, tty->name, "rs_wait_until_sent"))
- return;
-
- if (info->xmit_fifo_size == 0)
- return; /* Just in case.... */
-
- orig_jiffies = jiffies;
-
- /*
- * tty_wait_until_sent is called from lots of places,
- * with or without the BTM.
- */
- if (!tty_was_locked)
- tty_lock();
- /*
- * Set the check interval to be 1/5 of the estimated time to
- * send a single character, and make it at least 1. The check
- * interval should also be less than the timeout.
- *
- * Note: we have to use pretty tight timings here to satisfy
- * the NIST-PCTS.
- */
- char_time = (info->timeout - HZ/50) / info->xmit_fifo_size;
- char_time = char_time / 5;
- if (char_time == 0)
- char_time = 1;
- if (timeout)
- char_time = min_t(unsigned long, char_time, timeout);
- /*
- * If the transmitter hasn't cleared in twice the approximate
- * amount of time to send the entire FIFO, it probably won't
- * ever clear. This assumes the UART isn't doing flow
- * control, which is currently the case. Hence, if it ever
- * takes longer than info->timeout, this is probably due to a
- * UART bug of some kind. So, we clamp the timeout parameter at
- * 2*info->timeout.
- */
- if (!timeout || timeout > 2*info->timeout)
- timeout = 2*info->timeout;
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
- printk("In rs_wait_until_sent(%d) check=%lu...", timeout, char_time);
- printk("jiff=%lu...", jiffies);
-#endif
- while(!((lsr = custom.serdatr) & SDR_TSRE)) {
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
- printk("serdatr = %d (jiff=%lu)...", lsr, jiffies);
-#endif
- msleep_interruptible(jiffies_to_msecs(char_time));
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
- __set_current_state(TASK_RUNNING);
- if (!tty_was_locked)
- tty_unlock();
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
- printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
-#endif
-}
-
-/*
- * rs_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-static void rs_hangup(struct tty_struct *tty)
-{
- struct async_struct * info = tty->driver_data;
- struct serial_state *state = info->state;
-
- if (serial_paranoia_check(info, tty->name, "rs_hangup"))
- return;
-
- state = info->state;
-
- rs_flush_buffer(tty);
- shutdown(info);
- info->event = 0;
- state->count = 0;
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- info->tty = NULL;
- wake_up_interruptible(&info->open_wait);
-}
-
-/*
- * ------------------------------------------------------------
- * rs_open() and friends
- * ------------------------------------------------------------
- */
-static int block_til_ready(struct tty_struct *tty, struct file * filp,
- struct async_struct *info)
-{
-#ifdef DECLARE_WAITQUEUE
- DECLARE_WAITQUEUE(wait, current);
-#else
- struct wait_queue wait = { current, NULL };
-#endif
- struct serial_state *state = info->state;
- int retval;
- int do_clocal = 0, extra_count = 0;
- unsigned long flags;
-
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (tty_hung_up_p(filp) ||
- (info->flags & ASYNC_CLOSING)) {
- if (info->flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->close_wait);
-#ifdef SERIAL_DO_RESTART
- return ((info->flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS);
-#else
- return -EAGAIN;
-#endif
- }
-
- /*
- * If non-blocking mode is set, or the port is not enabled,
- * then make the check up front and then exit.
- */
- if ((filp->f_flags & O_NONBLOCK) ||
- (tty->flags & (1 << TTY_IO_ERROR))) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- if (tty->termios->c_cflag & CLOCAL)
- do_clocal = 1;
-
- /*
- * Block waiting for the carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, state->count is dropped by one, so that
- * rs_close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
- retval = 0;
- add_wait_queue(&info->open_wait, &wait);
-#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready before block: ttys%d, count = %d\n",
- state->line, state->count);
-#endif
- local_irq_save(flags);
- if (!tty_hung_up_p(filp)) {
- extra_count = 1;
- state->count--;
- }
- local_irq_restore(flags);
- info->blocked_open++;
- while (1) {
- local_irq_save(flags);
- if (tty->termios->c_cflag & CBAUD)
- rtsdtr_ctrl(SER_DTR|SER_RTS);
- local_irq_restore(flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) ||
- !(info->flags & ASYNC_INITIALIZED)) {
-#ifdef SERIAL_DO_RESTART
- if (info->flags & ASYNC_HUP_NOTIFY)
- retval = -EAGAIN;
- else
- retval = -ERESTARTSYS;
-#else
- retval = -EAGAIN;
-#endif
- break;
- }
- if (!(info->flags & ASYNC_CLOSING) &&
- (do_clocal || (!(ciab.pra & SER_DCD)) ))
- break;
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
-#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready blocking: ttys%d, count = %d\n",
- info->line, state->count);
-#endif
- tty_unlock();
- schedule();
- tty_lock();
- }
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
- if (extra_count)
- state->count++;
- info->blocked_open--;
-#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready after blocking: ttys%d, count = %d\n",
- info->line, state->count);
-#endif
- if (retval)
- return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
-}
-
-static int get_async_struct(int line, struct async_struct **ret_info)
-{
- struct async_struct *info;
- struct serial_state *sstate;
-
- sstate = rs_table + line;
- sstate->count++;
- if (sstate->info) {
- *ret_info = sstate->info;
- return 0;
- }
- info = kzalloc(sizeof(struct async_struct), GFP_KERNEL);
- if (!info) {
- sstate->count--;
- return -ENOMEM;
- }
-#ifdef DECLARE_WAITQUEUE
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
- init_waitqueue_head(&info->delta_msr_wait);
-#endif
- info->magic = SERIAL_MAGIC;
- info->port = sstate->port;
- info->flags = sstate->flags;
- info->xmit_fifo_size = sstate->xmit_fifo_size;
- info->line = line;
- tasklet_init(&info->tlet, do_softint, (unsigned long)info);
- info->state = sstate;
- if (sstate->info) {
- kfree(info);
- *ret_info = sstate->info;
- return 0;
- }
- *ret_info = sstate->info = info;
- return 0;
-}
-
-/*
- * This routine is called whenever a serial port is opened. It
- * enables interrupts for a serial port, linking in its async structure into
- * the IRQ chain. It also performs the serial-specific
- * initialization for the tty structure.
- */
-static int rs_open(struct tty_struct *tty, struct file * filp)
-{
- struct async_struct *info;
- int retval, line;
-
- line = tty->index;
- if ((line < 0) || (line >= NR_PORTS)) {
- return -ENODEV;
- }
- retval = get_async_struct(line, &info);
- if (retval) {
- return retval;
- }
- tty->driver_data = info;
- info->tty = tty;
- if (serial_paranoia_check(info, tty->name, "rs_open"))
- return -ENODEV;
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("rs_open %s, count = %d\n", tty->name, info->state->count);
-#endif
- info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
- /*
- * If the port is the middle of closing, bail out now
- */
- if (tty_hung_up_p(filp) ||
- (info->flags & ASYNC_CLOSING)) {
- if (info->flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->close_wait);
-#ifdef SERIAL_DO_RESTART
- return ((info->flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS);
-#else
- return -EAGAIN;
-#endif
- }
-
- /*
- * Start up serial port
- */
- retval = startup(info);
- if (retval) {
- return retval;
- }
-
- retval = block_til_ready(tty, filp, info);
- if (retval) {
-#ifdef SERIAL_DEBUG_OPEN
- printk("rs_open returning after block_til_ready with %d\n",
- retval);
-#endif
- return retval;
- }
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("rs_open %s successful...", tty->name);
-#endif
- return 0;
-}
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, struct serial_state *state)
-{
- struct async_struct *info = state->info, scr_info;
- char stat_buf[30], control, status;
- unsigned long flags;
-
- seq_printf(m, "%d: uart:amiga_builtin",state->line);
-
- /*
- * Figure out the current RS-232 lines
- */
- if (!info) {
- info = &scr_info; /* This is just for serial_{in,out} */
-
- info->magic = SERIAL_MAGIC;
- info->flags = state->flags;
- info->quot = 0;
- info->tty = NULL;
- }
- local_irq_save(flags);
- status = ciab.pra;
- control = info ? info->MCR : status;
- local_irq_restore(flags);
-
- stat_buf[0] = 0;
- stat_buf[1] = 0;
- if(!(control & SER_RTS))
- strcat(stat_buf, "|RTS");
- if(!(status & SER_CTS))
- strcat(stat_buf, "|CTS");
- if(!(control & SER_DTR))
- strcat(stat_buf, "|DTR");
- if(!(status & SER_DSR))
- strcat(stat_buf, "|DSR");
- if(!(status & SER_DCD))
- strcat(stat_buf, "|CD");
-
- if (info->quot) {
- seq_printf(m, " baud:%d", state->baud_base / info->quot);
- }
-
- seq_printf(m, " tx:%d rx:%d", state->icount.tx, state->icount.rx);
-
- if (state->icount.frame)
- seq_printf(m, " fe:%d", state->icount.frame);
-
- if (state->icount.parity)
- seq_printf(m, " pe:%d", state->icount.parity);
-
- if (state->icount.brk)
- seq_printf(m, " brk:%d", state->icount.brk);
-
- if (state->icount.overrun)
- seq_printf(m, " oe:%d", state->icount.overrun);
-
- /*
- * Last thing is the RS-232 status lines
- */
- seq_printf(m, " %s\n", stat_buf+1);
-}
-
-static int rs_proc_show(struct seq_file *m, void *v)
-{
- seq_printf(m, "serinfo:1.0 driver:%s\n", serial_version);
- line_info(m, &rs_table[0]);
- return 0;
-}
-
-static int rs_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, rs_proc_show, NULL);
-}
-
-static const struct file_operations rs_proc_fops = {
- .owner = THIS_MODULE,
- .open = rs_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * ---------------------------------------------------------------------
- * rs_init() and friends
- *
- * rs_init() is called at boot-time to initialize the serial driver.
- * ---------------------------------------------------------------------
- */
-
-/*
- * This routine prints out the appropriate serial driver version
- * number, and identifies which options were configured into this
- * driver.
- */
-static void show_serial_version(void)
-{
- printk(KERN_INFO "%s version %s\n", serial_name, serial_version);
-}
-
-
-static const struct tty_operations serial_ops = {
- .open = rs_open,
- .close = rs_close,
- .write = rs_write,
- .put_char = rs_put_char,
- .flush_chars = rs_flush_chars,
- .write_room = rs_write_room,
- .chars_in_buffer = rs_chars_in_buffer,
- .flush_buffer = rs_flush_buffer,
- .ioctl = rs_ioctl,
- .throttle = rs_throttle,
- .unthrottle = rs_unthrottle,
- .set_termios = rs_set_termios,
- .stop = rs_stop,
- .start = rs_start,
- .hangup = rs_hangup,
- .break_ctl = rs_break,
- .send_xchar = rs_send_xchar,
- .wait_until_sent = rs_wait_until_sent,
- .tiocmget = rs_tiocmget,
- .tiocmset = rs_tiocmset,
- .get_icount = rs_get_icount,
- .proc_fops = &rs_proc_fops,
-};
-
-/*
- * The serial driver boot-time initialization code!
- */
-static int __init amiga_serial_probe(struct platform_device *pdev)
-{
- unsigned long flags;
- struct serial_state * state;
- int error;
-
- serial_driver = alloc_tty_driver(1);
- if (!serial_driver)
- return -ENOMEM;
-
- IRQ_ports = NULL;
-
- show_serial_version();
-
- /* Initialize the tty_driver structure */
-
- serial_driver->owner = THIS_MODULE;
- serial_driver->driver_name = "amiserial";
- serial_driver->name = "ttyS";
- serial_driver->major = TTY_MAJOR;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(serial_driver, &serial_ops);
-
- error = tty_register_driver(serial_driver);
- if (error)
- goto fail_put_tty_driver;
-
- state = rs_table;
- state->magic = SSTATE_MAGIC;
- state->port = (int)&custom.serdatr; /* Just to give it a value */
- state->line = 0;
- state->custom_divisor = 0;
- state->close_delay = 5*HZ/10;
- state->closing_wait = 30*HZ;
- state->icount.cts = state->icount.dsr =
- state->icount.rng = state->icount.dcd = 0;
- state->icount.rx = state->icount.tx = 0;
- state->icount.frame = state->icount.parity = 0;
- state->icount.overrun = state->icount.brk = 0;
-
- printk(KERN_INFO "ttyS%d is the amiga builtin serial port\n",
- state->line);
-
- /* Hardware set up */
-
- state->baud_base = amiga_colorclock;
- state->xmit_fifo_size = 1;
-
- /* set ISRs, and then disable the rx interrupts */
- error = request_irq(IRQ_AMIGA_TBE, ser_tx_int, 0, "serial TX", state);
- if (error)
- goto fail_unregister;
-
- error = request_irq(IRQ_AMIGA_RBF, ser_rx_int, IRQF_DISABLED,
- "serial RX", state);
- if (error)
- goto fail_free_irq;
-
- local_irq_save(flags);
-
- /* turn off Rx and Tx interrupts */
- custom.intena = IF_RBF | IF_TBE;
- mb();
-
- /* clear any pending interrupt */
- custom.intreq = IF_RBF | IF_TBE;
- mb();
-
- local_irq_restore(flags);
-
- /*
- * set the appropriate directions for the modem control flags,
- * and clear RTS and DTR
- */
- ciab.ddra |= (SER_DTR | SER_RTS); /* outputs */
- ciab.ddra &= ~(SER_DCD | SER_CTS | SER_DSR); /* inputs */
-
- platform_set_drvdata(pdev, state);
-
- return 0;
-
-fail_free_irq:
- free_irq(IRQ_AMIGA_TBE, state);
-fail_unregister:
- tty_unregister_driver(serial_driver);
-fail_put_tty_driver:
- put_tty_driver(serial_driver);
- return error;
-}
-
-static int __exit amiga_serial_remove(struct platform_device *pdev)
-{
- int error;
- struct serial_state *state = platform_get_drvdata(pdev);
- struct async_struct *info = state->info;
-
- /* printk("Unloading %s: version %s\n", serial_name, serial_version); */
- tasklet_kill(&info->tlet);
- if ((error = tty_unregister_driver(serial_driver)))
- printk("SERIAL: failed to unregister serial driver (%d)\n",
- error);
- put_tty_driver(serial_driver);
-
- rs_table[0].info = NULL;
- kfree(info);
-
- free_irq(IRQ_AMIGA_TBE, rs_table);
- free_irq(IRQ_AMIGA_RBF, rs_table);
-
- platform_set_drvdata(pdev, NULL);
-
- return error;
-}
-
-static struct platform_driver amiga_serial_driver = {
- .remove = __exit_p(amiga_serial_remove),
- .driver = {
- .name = "amiga-serial",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init amiga_serial_init(void)
-{
- return platform_driver_probe(&amiga_serial_driver, amiga_serial_probe);
-}
-
-module_init(amiga_serial_init);
-
-static void __exit amiga_serial_exit(void)
-{
- platform_driver_unregister(&amiga_serial_driver);
-}
-
-module_exit(amiga_serial_exit);
-
-
-#if defined(CONFIG_SERIAL_CONSOLE) && !defined(MODULE)
-
-/*
- * ------------------------------------------------------------
- * Serial console driver
- * ------------------------------------------------------------
- */
-
-static void amiga_serial_putc(char c)
-{
- custom.serdat = (unsigned char)c | 0x100;
- while (!(custom.serdatr & 0x2000))
- barrier();
-}
-
-/*
- * Print a string to the serial port trying not to disturb
- * any possible real use of the port...
- *
- * The console must be locked when we get here.
- */
-static void serial_console_write(struct console *co, const char *s,
- unsigned count)
-{
- unsigned short intena = custom.intenar;
-
- custom.intena = IF_TBE;
-
- while (count--) {
- if (*s == '\n')
- amiga_serial_putc('\r');
- amiga_serial_putc(*s++);
- }
-
- custom.intena = IF_SETCLR | (intena & IF_TBE);
-}
-
-static struct tty_driver *serial_console_device(struct console *c, int *index)
-{
- *index = 0;
- return serial_driver;
-}
-
-static struct console sercons = {
- .name = "ttyS",
- .write = serial_console_write,
- .device = serial_console_device,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-/*
- * Register console.
- */
-static int __init amiserial_console_init(void)
-{
- register_console(&sercons);
- return 0;
-}
-console_initcall(amiserial_console_init);
-
-#endif /* CONFIG_SERIAL_CONSOLE && !MODULE */
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:amiga-serial");
diff --git a/drivers/char/bfin_jtag_comm.c b/drivers/char/bfin_jtag_comm.c
deleted file mode 100644
index 16402445f2b..00000000000
--- a/drivers/char/bfin_jtag_comm.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * TTY over Blackfin JTAG Communication
- *
- * Copyright 2008-2009 Analog Devices Inc.
- *
- * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
- */
-
-#define DRV_NAME "bfin-jtag-comm"
-#define DEV_NAME "ttyBFJC"
-#define pr_fmt(fmt) DRV_NAME ": " fmt
-
-#include <linux/circ_buf.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/kernel.h>
-#include <linux/kthread.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <asm/atomic.h>
-
-#define pr_init(fmt, args...) ({ static const __initconst char __fmt[] = fmt; printk(__fmt, ## args); })
-
-/* See the Debug/Emulation chapter in the HRM */
-#define EMUDOF 0x00000001 /* EMUDAT_OUT full & valid */
-#define EMUDIF 0x00000002 /* EMUDAT_IN full & valid */
-#define EMUDOOVF 0x00000004 /* EMUDAT_OUT overflow */
-#define EMUDIOVF 0x00000008 /* EMUDAT_IN overflow */
-
-static inline uint32_t bfin_write_emudat(uint32_t emudat)
-{
- __asm__ __volatile__("emudat = %0;" : : "d"(emudat));
- return emudat;
-}
-
-static inline uint32_t bfin_read_emudat(void)
-{
- uint32_t emudat;
- __asm__ __volatile__("%0 = emudat;" : "=d"(emudat));
- return emudat;
-}
-
-static inline uint32_t bfin_write_emudat_chars(char a, char b, char c, char d)
-{
- return bfin_write_emudat((a << 0) | (b << 8) | (c << 16) | (d << 24));
-}
-
-#define CIRC_SIZE 2048 /* see comment in tty_io.c:do_tty_write() */
-#define CIRC_MASK (CIRC_SIZE - 1)
-#define circ_empty(circ) ((circ)->head == (circ)->tail)
-#define circ_free(circ) CIRC_SPACE((circ)->head, (circ)->tail, CIRC_SIZE)
-#define circ_cnt(circ) CIRC_CNT((circ)->head, (circ)->tail, CIRC_SIZE)
-#define circ_byte(circ, idx) ((circ)->buf[(idx) & CIRC_MASK])
-
-static struct tty_driver *bfin_jc_driver;
-static struct task_struct *bfin_jc_kthread;
-static struct tty_struct * volatile bfin_jc_tty;
-static unsigned long bfin_jc_count;
-static DEFINE_MUTEX(bfin_jc_tty_mutex);
-static volatile struct circ_buf bfin_jc_write_buf;
-
-static int
-bfin_jc_emudat_manager(void *arg)
-{
- uint32_t inbound_len = 0, outbound_len = 0;
-
- while (!kthread_should_stop()) {
- /* no one left to give data to, so sleep */
- if (bfin_jc_tty == NULL && circ_empty(&bfin_jc_write_buf)) {
- pr_debug("waiting for readers\n");
- __set_current_state(TASK_UNINTERRUPTIBLE);
- schedule();
- __set_current_state(TASK_RUNNING);
- }
-
- /* no data available, so just chill */
- if (!(bfin_read_DBGSTAT() & EMUDIF) && circ_empty(&bfin_jc_write_buf)) {
- pr_debug("waiting for data (in_len = %i) (circ: %i %i)\n",
- inbound_len, bfin_jc_write_buf.tail, bfin_jc_write_buf.head);
- if (inbound_len)
- schedule();
- else
- schedule_timeout_interruptible(HZ);
- continue;
- }
-
- /* if incoming data is ready, eat it */
- if (bfin_read_DBGSTAT() & EMUDIF) {
- struct tty_struct *tty;
- mutex_lock(&bfin_jc_tty_mutex);
- tty = (struct tty_struct *)bfin_jc_tty;
- if (tty != NULL) {
- uint32_t emudat = bfin_read_emudat();
- if (inbound_len == 0) {
- pr_debug("incoming length: 0x%08x\n", emudat);
- inbound_len = emudat;
- } else {
- size_t num_chars = (4 <= inbound_len ? 4 : inbound_len);
- pr_debug(" incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars);
- inbound_len -= num_chars;
- tty_insert_flip_string(tty, (unsigned char *)&emudat, num_chars);
- tty_flip_buffer_push(tty);
- }
- }
- mutex_unlock(&bfin_jc_tty_mutex);
- }
-
- /* if outgoing data is ready, post it */
- if (!(bfin_read_DBGSTAT() & EMUDOF) && !circ_empty(&bfin_jc_write_buf)) {
- if (outbound_len == 0) {
- outbound_len = circ_cnt(&bfin_jc_write_buf);
- bfin_write_emudat(outbound_len);
- pr_debug("outgoing length: 0x%08x\n", outbound_len);
- } else {
- struct tty_struct *tty;
- int tail = bfin_jc_write_buf.tail;
- size_t ate = (4 <= outbound_len ? 4 : outbound_len);
- uint32_t emudat =
- bfin_write_emudat_chars(
- circ_byte(&bfin_jc_write_buf, tail + 0),
- circ_byte(&bfin_jc_write_buf, tail + 1),
- circ_byte(&bfin_jc_write_buf, tail + 2),
- circ_byte(&bfin_jc_write_buf, tail + 3)
- );
- bfin_jc_write_buf.tail += ate;
- outbound_len -= ate;
- mutex_lock(&bfin_jc_tty_mutex);
- tty = (struct tty_struct *)bfin_jc_tty;
- if (tty)
- tty_wakeup(tty);
- mutex_unlock(&bfin_jc_tty_mutex);
- pr_debug(" outgoing data: 0x%08x (pushing %zu)\n", emudat, ate);
- }
- }
- }
-
- __set_current_state(TASK_RUNNING);
- return 0;
-}
-
-static int
-bfin_jc_open(struct tty_struct *tty, struct file *filp)
-{
- mutex_lock(&bfin_jc_tty_mutex);
- pr_debug("open %lu\n", bfin_jc_count);
- ++bfin_jc_count;
- bfin_jc_tty = tty;
- wake_up_process(bfin_jc_kthread);
- mutex_unlock(&bfin_jc_tty_mutex);
- return 0;
-}
-
-static void
-bfin_jc_close(struct tty_struct *tty, struct file *filp)
-{
- mutex_lock(&bfin_jc_tty_mutex);
- pr_debug("close %lu\n", bfin_jc_count);
- if (--bfin_jc_count == 0)
- bfin_jc_tty = NULL;
- wake_up_process(bfin_jc_kthread);
- mutex_unlock(&bfin_jc_tty_mutex);
-}
-
-/* XXX: we dont handle the put_char() case where we must handle count = 1 */
-static int
-bfin_jc_circ_write(const unsigned char *buf, int count)
-{
- int i;
- count = min(count, circ_free(&bfin_jc_write_buf));
- pr_debug("going to write chunk of %i bytes\n", count);
- for (i = 0; i < count; ++i)
- circ_byte(&bfin_jc_write_buf, bfin_jc_write_buf.head + i) = buf[i];
- bfin_jc_write_buf.head += i;
- return i;
-}
-
-#ifndef CONFIG_BFIN_JTAG_COMM_CONSOLE
-# define console_lock()
-# define console_unlock()
-#endif
-static int
-bfin_jc_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
- int i;
- console_lock();
- i = bfin_jc_circ_write(buf, count);
- console_unlock();
- wake_up_process(bfin_jc_kthread);
- return i;
-}
-
-static void
-bfin_jc_flush_chars(struct tty_struct *tty)
-{
- wake_up_process(bfin_jc_kthread);
-}
-
-static int
-bfin_jc_write_room(struct tty_struct *tty)
-{
- return circ_free(&bfin_jc_write_buf);
-}
-
-static int
-bfin_jc_chars_in_buffer(struct tty_struct *tty)
-{
- return circ_cnt(&bfin_jc_write_buf);
-}
-
-static void
-bfin_jc_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- unsigned long expire = jiffies + timeout;
- while (!circ_empty(&bfin_jc_write_buf)) {
- if (signal_pending(current))
- break;
- if (time_after(jiffies, expire))
- break;
- }
-}
-
-static const struct tty_operations bfin_jc_ops = {
- .open = bfin_jc_open,
- .close = bfin_jc_close,
- .write = bfin_jc_write,
- /*.put_char = bfin_jc_put_char,*/
- .flush_chars = bfin_jc_flush_chars,
- .write_room = bfin_jc_write_room,
- .chars_in_buffer = bfin_jc_chars_in_buffer,
- .wait_until_sent = bfin_jc_wait_until_sent,
-};
-
-static int __init bfin_jc_init(void)
-{
- int ret;
-
- bfin_jc_kthread = kthread_create(bfin_jc_emudat_manager, NULL, DRV_NAME);
- if (IS_ERR(bfin_jc_kthread))
- return PTR_ERR(bfin_jc_kthread);
-
- ret = -ENOMEM;
-
- bfin_jc_write_buf.head = bfin_jc_write_buf.tail = 0;
- bfin_jc_write_buf.buf = kmalloc(CIRC_SIZE, GFP_KERNEL);
- if (!bfin_jc_write_buf.buf)
- goto err;
-
- bfin_jc_driver = alloc_tty_driver(1);
- if (!bfin_jc_driver)
- goto err;
-
- bfin_jc_driver->owner = THIS_MODULE;
- bfin_jc_driver->driver_name = DRV_NAME;
- bfin_jc_driver->name = DEV_NAME;
- bfin_jc_driver->type = TTY_DRIVER_TYPE_SERIAL;
- bfin_jc_driver->subtype = SERIAL_TYPE_NORMAL;
- bfin_jc_driver->init_termios = tty_std_termios;
- tty_set_operations(bfin_jc_driver, &bfin_jc_ops);
-
- ret = tty_register_driver(bfin_jc_driver);
- if (ret)
- goto err;
-
- pr_init(KERN_INFO DRV_NAME ": initialized\n");
-
- return 0;
-
- err:
- put_tty_driver(bfin_jc_driver);
- kfree(bfin_jc_write_buf.buf);
- kthread_stop(bfin_jc_kthread);
- return ret;
-}
-module_init(bfin_jc_init);
-
-static void __exit bfin_jc_exit(void)
-{
- kthread_stop(bfin_jc_kthread);
- kfree(bfin_jc_write_buf.buf);
- tty_unregister_driver(bfin_jc_driver);
- put_tty_driver(bfin_jc_driver);
-}
-module_exit(bfin_jc_exit);
-
-#if defined(CONFIG_BFIN_JTAG_COMM_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
-static void
-bfin_jc_straight_buffer_write(const char *buf, unsigned count)
-{
- unsigned ate = 0;
- while (bfin_read_DBGSTAT() & EMUDOF)
- continue;
- bfin_write_emudat(count);
- while (ate < count) {
- while (bfin_read_DBGSTAT() & EMUDOF)
- continue;
- bfin_write_emudat_chars(buf[ate], buf[ate+1], buf[ate+2], buf[ate+3]);
- ate += 4;
- }
-}
-#endif
-
-#ifdef CONFIG_BFIN_JTAG_COMM_CONSOLE
-static void
-bfin_jc_console_write(struct console *co, const char *buf, unsigned count)
-{
- if (bfin_jc_kthread == NULL)
- bfin_jc_straight_buffer_write(buf, count);
- else
- bfin_jc_circ_write(buf, count);
-}
-
-static struct tty_driver *
-bfin_jc_console_device(struct console *co, int *index)
-{
- *index = co->index;
- return bfin_jc_driver;
-}
-
-static struct console bfin_jc_console = {
- .name = DEV_NAME,
- .write = bfin_jc_console_write,
- .device = bfin_jc_console_device,
- .flags = CON_ANYTIME | CON_PRINTBUFFER,
- .index = -1,
-};
-
-static int __init bfin_jc_console_init(void)
-{
- register_console(&bfin_jc_console);
- return 0;
-}
-console_initcall(bfin_jc_console_init);
-#endif
-
-#ifdef CONFIG_EARLY_PRINTK
-static void __init
-bfin_jc_early_write(struct console *co, const char *buf, unsigned int count)
-{
- bfin_jc_straight_buffer_write(buf, count);
-}
-
-static struct __initdata console bfin_jc_early_console = {
- .name = "early_BFJC",
- .write = bfin_jc_early_write,
- .flags = CON_ANYTIME | CON_PRINTBUFFER,
- .index = -1,
-};
-
-struct console * __init
-bfin_jc_early_init(unsigned int port, unsigned int cflag)
-{
- return &bfin_jc_early_console;
-}
-#endif
-
-MODULE_AUTHOR("Mike Frysinger <vapier@gentoo.org>");
-MODULE_DESCRIPTION("TTY over Blackfin JTAG Communication");
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/cd1865.h b/drivers/char/cd1865.h
deleted file mode 100644
index 9940966e7a1..00000000000
--- a/drivers/char/cd1865.h
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * linux/drivers/char/cd1865.h -- Definitions relating to the CD1865
- * for the Specialix IO8+ multiport serial driver.
- *
- * Copyright (C) 1997 Roger Wolff (R.E.Wolff@BitWizard.nl)
- * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact io8-linux@specialix.co.uk if you require
- * support.
- *
- * This driver was developped in the BitWizard linux device
- * driver service. If you require a linux device driver for your
- * product, please contact devices@BitWizard.nl for a quote.
- *
- */
-
-/*
- * Definitions for Driving CD180/CD1864/CD1865 based eightport serial cards.
- */
-
-
-/* Values of choice for Interrupt ACKs */
-/* These values are "obligatory" if you use the register based
- * interrupt acknowledgements. See page 99-101 of V2.0 of the CD1865
- * databook */
-#define SX_ACK_MINT 0x75 /* goes to PILR1 */
-#define SX_ACK_TINT 0x76 /* goes to PILR2 */
-#define SX_ACK_RINT 0x77 /* goes to PILR3 */
-
-/* Chip ID (is used when chips ar daisy chained.) */
-#define SX_ID 0x10
-
-/* Definitions for Cirrus Logic CL-CD186x 8-port async mux chip */
-
-#define CD186x_NCH 8 /* Total number of channels */
-#define CD186x_TPC 16 /* Ticks per character */
-#define CD186x_NFIFO 8 /* TX FIFO size */
-
-
-/* Global registers */
-
-#define CD186x_GIVR 0x40 /* Global Interrupt Vector Register */
-#define CD186x_GICR 0x41 /* Global Interrupting Channel Register */
-#define CD186x_PILR1 0x61 /* Priority Interrupt Level Register 1 */
-#define CD186x_PILR2 0x62 /* Priority Interrupt Level Register 2 */
-#define CD186x_PILR3 0x63 /* Priority Interrupt Level Register 3 */
-#define CD186x_CAR 0x64 /* Channel Access Register */
-#define CD186x_SRSR 0x65 /* Channel Access Register */
-#define CD186x_GFRCR 0x6b /* Global Firmware Revision Code Register */
-#define CD186x_PPRH 0x70 /* Prescaler Period Register High */
-#define CD186x_PPRL 0x71 /* Prescaler Period Register Low */
-#define CD186x_RDR 0x78 /* Receiver Data Register */
-#define CD186x_RCSR 0x7a /* Receiver Character Status Register */
-#define CD186x_TDR 0x7b /* Transmit Data Register */
-#define CD186x_EOIR 0x7f /* End of Interrupt Register */
-#define CD186x_MRAR 0x75 /* Modem Request Acknowledge register */
-#define CD186x_TRAR 0x76 /* Transmit Request Acknowledge register */
-#define CD186x_RRAR 0x77 /* Receive Request Acknowledge register */
-#define CD186x_SRCR 0x66 /* Service Request Configuration register */
-
-/* Channel Registers */
-
-#define CD186x_CCR 0x01 /* Channel Command Register */
-#define CD186x_IER 0x02 /* Interrupt Enable Register */
-#define CD186x_COR1 0x03 /* Channel Option Register 1 */
-#define CD186x_COR2 0x04 /* Channel Option Register 2 */
-#define CD186x_COR3 0x05 /* Channel Option Register 3 */
-#define CD186x_CCSR 0x06 /* Channel Control Status Register */
-#define CD186x_RDCR 0x07 /* Receive Data Count Register */
-#define CD186x_SCHR1 0x09 /* Special Character Register 1 */
-#define CD186x_SCHR2 0x0a /* Special Character Register 2 */
-#define CD186x_SCHR3 0x0b /* Special Character Register 3 */
-#define CD186x_SCHR4 0x0c /* Special Character Register 4 */
-#define CD186x_MCOR1 0x10 /* Modem Change Option 1 Register */
-#define CD186x_MCOR2 0x11 /* Modem Change Option 2 Register */
-#define CD186x_MCR 0x12 /* Modem Change Register */
-#define CD186x_RTPR 0x18 /* Receive Timeout Period Register */
-#define CD186x_MSVR 0x28 /* Modem Signal Value Register */
-#define CD186x_MSVRTS 0x29 /* Modem Signal Value Register */
-#define CD186x_MSVDTR 0x2a /* Modem Signal Value Register */
-#define CD186x_RBPRH 0x31 /* Receive Baud Rate Period Register High */
-#define CD186x_RBPRL 0x32 /* Receive Baud Rate Period Register Low */
-#define CD186x_TBPRH 0x39 /* Transmit Baud Rate Period Register High */
-#define CD186x_TBPRL 0x3a /* Transmit Baud Rate Period Register Low */
-
-
-/* Global Interrupt Vector Register (R/W) */
-
-#define GIVR_ITMASK 0x07 /* Interrupt type mask */
-#define GIVR_IT_MODEM 0x01 /* Modem Signal Change Interrupt */
-#define GIVR_IT_TX 0x02 /* Transmit Data Interrupt */
-#define GIVR_IT_RCV 0x03 /* Receive Good Data Interrupt */
-#define GIVR_IT_REXC 0x07 /* Receive Exception Interrupt */
-
-
-/* Global Interrupt Channel Register (R/W) */
-
-#define GICR_CHAN 0x1c /* Channel Number Mask */
-#define GICR_CHAN_OFF 2 /* Channel Number shift */
-
-
-/* Channel Address Register (R/W) */
-
-#define CAR_CHAN 0x07 /* Channel Number Mask */
-#define CAR_A7 0x08 /* A7 Address Extension (unused) */
-
-
-/* Receive Character Status Register (R/O) */
-
-#define RCSR_TOUT 0x80 /* Rx Timeout */
-#define RCSR_SCDET 0x70 /* Special Character Detected Mask */
-#define RCSR_NO_SC 0x00 /* No Special Characters Detected */
-#define RCSR_SC_1 0x10 /* Special Char 1 (or 1 & 3) Detected */
-#define RCSR_SC_2 0x20 /* Special Char 2 (or 2 & 4) Detected */
-#define RCSR_SC_3 0x30 /* Special Char 3 Detected */
-#define RCSR_SC_4 0x40 /* Special Char 4 Detected */
-#define RCSR_BREAK 0x08 /* Break has been detected */
-#define RCSR_PE 0x04 /* Parity Error */
-#define RCSR_FE 0x02 /* Frame Error */
-#define RCSR_OE 0x01 /* Overrun Error */
-
-
-/* Channel Command Register (R/W) (commands in groups can be OR-ed) */
-
-#define CCR_HARDRESET 0x81 /* Reset the chip */
-
-#define CCR_SOFTRESET 0x80 /* Soft Channel Reset */
-
-#define CCR_CORCHG1 0x42 /* Channel Option Register 1 Changed */
-#define CCR_CORCHG2 0x44 /* Channel Option Register 2 Changed */
-#define CCR_CORCHG3 0x48 /* Channel Option Register 3 Changed */
-
-#define CCR_SSCH1 0x21 /* Send Special Character 1 */
-
-#define CCR_SSCH2 0x22 /* Send Special Character 2 */
-
-#define CCR_SSCH3 0x23 /* Send Special Character 3 */
-
-#define CCR_SSCH4 0x24 /* Send Special Character 4 */
-
-#define CCR_TXEN 0x18 /* Enable Transmitter */
-#define CCR_RXEN 0x12 /* Enable Receiver */
-
-#define CCR_TXDIS 0x14 /* Disable Transmitter */
-#define CCR_RXDIS 0x11 /* Disable Receiver */
-
-
-/* Interrupt Enable Register (R/W) */
-
-#define IER_DSR 0x80 /* Enable interrupt on DSR change */
-#define IER_CD 0x40 /* Enable interrupt on CD change */
-#define IER_CTS 0x20 /* Enable interrupt on CTS change */
-#define IER_RXD 0x10 /* Enable interrupt on Receive Data */
-#define IER_RXSC 0x08 /* Enable interrupt on Receive Spec. Char */
-#define IER_TXRDY 0x04 /* Enable interrupt on TX FIFO empty */
-#define IER_TXEMPTY 0x02 /* Enable interrupt on TX completely empty */
-#define IER_RET 0x01 /* Enable interrupt on RX Exc. Timeout */
-
-
-/* Channel Option Register 1 (R/W) */
-
-#define COR1_ODDP 0x80 /* Odd Parity */
-#define COR1_PARMODE 0x60 /* Parity Mode mask */
-#define COR1_NOPAR 0x00 /* No Parity */
-#define COR1_FORCEPAR 0x20 /* Force Parity */
-#define COR1_NORMPAR 0x40 /* Normal Parity */
-#define COR1_IGNORE 0x10 /* Ignore Parity on RX */
-#define COR1_STOPBITS 0x0c /* Number of Stop Bits */
-#define COR1_1SB 0x00 /* 1 Stop Bit */
-#define COR1_15SB 0x04 /* 1.5 Stop Bits */
-#define COR1_2SB 0x08 /* 2 Stop Bits */
-#define COR1_CHARLEN 0x03 /* Character Length */
-#define COR1_5BITS 0x00 /* 5 bits */
-#define COR1_6BITS 0x01 /* 6 bits */
-#define COR1_7BITS 0x02 /* 7 bits */
-#define COR1_8BITS 0x03 /* 8 bits */
-
-
-/* Channel Option Register 2 (R/W) */
-
-#define COR2_IXM 0x80 /* Implied XON mode */
-#define COR2_TXIBE 0x40 /* Enable In-Band (XON/XOFF) Flow Control */
-#define COR2_ETC 0x20 /* Embedded Tx Commands Enable */
-#define COR2_LLM 0x10 /* Local Loopback Mode */
-#define COR2_RLM 0x08 /* Remote Loopback Mode */
-#define COR2_RTSAO 0x04 /* RTS Automatic Output Enable */
-#define COR2_CTSAE 0x02 /* CTS Automatic Enable */
-#define COR2_DSRAE 0x01 /* DSR Automatic Enable */
-
-
-/* Channel Option Register 3 (R/W) */
-
-#define COR3_XONCH 0x80 /* XON is a pair of characters (1 & 3) */
-#define COR3_XOFFCH 0x40 /* XOFF is a pair of characters (2 & 4) */
-#define COR3_FCT 0x20 /* Flow-Control Transparency Mode */
-#define COR3_SCDE 0x10 /* Special Character Detection Enable */
-#define COR3_RXTH 0x0f /* RX FIFO Threshold value (1-8) */
-
-
-/* Channel Control Status Register (R/O) */
-
-#define CCSR_RXEN 0x80 /* Receiver Enabled */
-#define CCSR_RXFLOFF 0x40 /* Receive Flow Off (XOFF was sent) */
-#define CCSR_RXFLON 0x20 /* Receive Flow On (XON was sent) */
-#define CCSR_TXEN 0x08 /* Transmitter Enabled */
-#define CCSR_TXFLOFF 0x04 /* Transmit Flow Off (got XOFF) */
-#define CCSR_TXFLON 0x02 /* Transmit Flow On (got XON) */
-
-
-/* Modem Change Option Register 1 (R/W) */
-
-#define MCOR1_DSRZD 0x80 /* Detect 0->1 transition of DSR */
-#define MCOR1_CDZD 0x40 /* Detect 0->1 transition of CD */
-#define MCOR1_CTSZD 0x20 /* Detect 0->1 transition of CTS */
-#define MCOR1_DTRTH 0x0f /* Auto DTR flow control Threshold (1-8) */
-#define MCOR1_NODTRFC 0x0 /* Automatic DTR flow control disabled */
-
-
-/* Modem Change Option Register 2 (R/W) */
-
-#define MCOR2_DSROD 0x80 /* Detect 1->0 transition of DSR */
-#define MCOR2_CDOD 0x40 /* Detect 1->0 transition of CD */
-#define MCOR2_CTSOD 0x20 /* Detect 1->0 transition of CTS */
-
-/* Modem Change Register (R/W) */
-
-#define MCR_DSRCHG 0x80 /* DSR Changed */
-#define MCR_CDCHG 0x40 /* CD Changed */
-#define MCR_CTSCHG 0x20 /* CTS Changed */
-
-
-/* Modem Signal Value Register (R/W) */
-
-#define MSVR_DSR 0x80 /* Current state of DSR input */
-#define MSVR_CD 0x40 /* Current state of CD input */
-#define MSVR_CTS 0x20 /* Current state of CTS input */
-#define MSVR_DTR 0x02 /* Current state of DTR output */
-#define MSVR_RTS 0x01 /* Current state of RTS output */
-
-
-/* Escape characters */
-
-#define CD186x_C_ESC 0x00 /* Escape character */
-#define CD186x_C_SBRK 0x81 /* Start sending BREAK */
-#define CD186x_C_DELAY 0x82 /* Delay output */
-#define CD186x_C_EBRK 0x83 /* Stop sending BREAK */
-
-#define SRSR_RREQint 0x10 /* This chip wants "rec" serviced */
-#define SRSR_TREQint 0x04 /* This chip wants "transmit" serviced */
-#define SRSR_MREQint 0x01 /* This chip wants "mdm change" serviced */
-
-
-
-#define SRCR_PKGTYPE 0x80
-#define SRCR_REGACKEN 0x40
-#define SRCR_DAISYEN 0x20
-#define SRCR_GLOBPRI 0x10
-#define SRCR_UNFAIR 0x08
-#define SRCR_AUTOPRI 0x02
-#define SRCR_PRISEL 0x01
-
-
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
deleted file mode 100644
index 4f152c28f40..00000000000
--- a/drivers/char/cyclades.c
+++ /dev/null
@@ -1,4200 +0,0 @@
-#undef BLOCKMOVE
-#define Z_WAKE
-#undef Z_EXT_CHARS_IN_BUFFER
-
-/*
- * linux/drivers/char/cyclades.c
- *
- * This file contains the driver for the Cyclades async multiport
- * serial boards.
- *
- * Initially written by Randolph Bentson <bentson@grieg.seaslug.org>.
- * Modified and maintained by Marcio Saito <marcio@cyclades.com>.
- *
- * Copyright (C) 2007-2009 Jiri Slaby <jirislaby@gmail.com>
- *
- * Much of the design and some of the code came from serial.c
- * which was copyright (C) 1991, 1992 Linus Torvalds. It was
- * extensively rewritten by Theodore Ts'o, 8/16/92 -- 9/14/92,
- * and then fixed as suggested by Michael K. Johnson 12/12/92.
- * Converted to pci probing and cleaned up by Jiri Slaby.
- *
- */
-
-#define CY_VERSION "2.6"
-
-/* If you need to install more boards than NR_CARDS, change the constant
- in the definition below. No other change is necessary to support up to
- eight boards. Beyond that you'll have to extend cy_isa_addresses. */
-
-#define NR_CARDS 4
-
-/*
- If the total number of ports is larger than NR_PORTS, change this
- constant in the definition below. No other change is necessary to
- support more boards/ports. */
-
-#define NR_PORTS 256
-
-#define ZO_V1 0
-#define ZO_V2 1
-#define ZE_V1 2
-
-#define SERIAL_PARANOIA_CHECK
-#undef CY_DEBUG_OPEN
-#undef CY_DEBUG_THROTTLE
-#undef CY_DEBUG_OTHER
-#undef CY_DEBUG_IO
-#undef CY_DEBUG_COUNT
-#undef CY_DEBUG_DTR
-#undef CY_DEBUG_WAIT_UNTIL_SENT
-#undef CY_DEBUG_INTERRUPTS
-#undef CY_16Y_HACK
-#undef CY_ENABLE_MONITORING
-#undef CY_PCI_DEBUG
-
-/*
- * Include section
- */
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/cyclades.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/bitops.h>
-#include <linux/firmware.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-
-static void cy_send_xchar(struct tty_struct *tty, char ch);
-
-#ifndef SERIAL_XMIT_SIZE
-#define SERIAL_XMIT_SIZE (min(PAGE_SIZE, 4096))
-#endif
-
-#define STD_COM_FLAGS (0)
-
-/* firmware stuff */
-#define ZL_MAX_BLOCKS 16
-#define DRIVER_VERSION 0x02010203
-#define RAM_SIZE 0x80000
-
-enum zblock_type {
- ZBLOCK_PRG = 0,
- ZBLOCK_FPGA = 1
-};
-
-struct zfile_header {
- char name[64];
- char date[32];
- char aux[32];
- u32 n_config;
- u32 config_offset;
- u32 n_blocks;
- u32 block_offset;
- u32 reserved[9];
-} __attribute__ ((packed));
-
-struct zfile_config {
- char name[64];
- u32 mailbox;
- u32 function;
- u32 n_blocks;
- u32 block_list[ZL_MAX_BLOCKS];
-} __attribute__ ((packed));
-
-struct zfile_block {
- u32 type;
- u32 file_offset;
- u32 ram_offset;
- u32 size;
-} __attribute__ ((packed));
-
-static struct tty_driver *cy_serial_driver;
-
-#ifdef CONFIG_ISA
-/* This is the address lookup table. The driver will probe for
- Cyclom-Y/ISA boards at all addresses in here. If you want the
- driver to probe addresses at a different address, add it to
- this table. If the driver is probing some other board and
- causing problems, remove the offending address from this table.
-*/
-
-static unsigned int cy_isa_addresses[] = {
- 0xD0000,
- 0xD2000,
- 0xD4000,
- 0xD6000,
- 0xD8000,
- 0xDA000,
- 0xDC000,
- 0xDE000,
- 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-#define NR_ISA_ADDRS ARRAY_SIZE(cy_isa_addresses)
-
-static long maddr[NR_CARDS];
-static int irq[NR_CARDS];
-
-module_param_array(maddr, long, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-
-#endif /* CONFIG_ISA */
-
-/* This is the per-card data structure containing address, irq, number of
- channels, etc. This driver supports a maximum of NR_CARDS cards.
-*/
-static struct cyclades_card cy_card[NR_CARDS];
-
-static int cy_next_channel; /* next minor available */
-
-/*
- * This is used to look up the divisor speeds and the timeouts
- * We're normally limited to 15 distinct baud rates. The extra
- * are accessed via settings in info->port.flags.
- * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
- * 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
- * HI VHI
- * 20
- */
-static const int baud_table[] = {
- 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
- 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 150000,
- 230400, 0
-};
-
-static const char baud_co_25[] = { /* 25 MHz clock option table */
- /* value => 00 01 02 03 04 */
- /* divide by 8 32 128 512 2048 */
- 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
- 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-static const char baud_bpr_25[] = { /* 25 MHz baud rate period table */
- 0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
- 0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15
-};
-
-static const char baud_co_60[] = { /* 60 MHz clock option table (CD1400 J) */
- /* value => 00 01 02 03 04 */
- /* divide by 8 32 128 512 2048 */
- 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03,
- 0x03, 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00
-};
-
-static const char baud_bpr_60[] = { /* 60 MHz baud rate period table (CD1400 J) */
- 0x00, 0x82, 0x21, 0xff, 0xdb, 0xc3, 0x92, 0x62, 0xc3, 0x62,
- 0x41, 0xc3, 0x62, 0xc3, 0x62, 0xc3, 0x82, 0x62, 0x41, 0x32,
- 0x21
-};
-
-static const char baud_cor3[] = { /* receive threshold */
- 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
- 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07,
- 0x07
-};
-
-/*
- * The Cyclades driver implements HW flow control as any serial driver.
- * The cyclades_port structure member rflow and the vector rflow_thr
- * allows us to take advantage of a special feature in the CD1400 to avoid
- * data loss even when the system interrupt latency is too high. These flags
- * are to be used only with very special applications. Setting these flags
- * requires the use of a special cable (DTR and RTS reversed). In the new
- * CD1400-based boards (rev. 6.00 or later), there is no need for special
- * cables.
- */
-
-static const char rflow_thr[] = { /* rflow threshold */
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
- 0x0a
-};
-
-/* The Cyclom-Ye has placed the sequential chips in non-sequential
- * address order. This look-up table overcomes that problem.
- */
-static const unsigned int cy_chip_offset[] = { 0x0000,
- 0x0400,
- 0x0800,
- 0x0C00,
- 0x0200,
- 0x0600,
- 0x0A00,
- 0x0E00
-};
-
-/* PCI related definitions */
-
-#ifdef CONFIG_PCI
-static const struct pci_device_id cy_pci_dev_id[] = {
- /* PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Lo) },
- /* PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Y_Hi) },
- /* 4Y PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Lo) },
- /* 4Y PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_4Y_Hi) },
- /* 8Y PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Lo) },
- /* 8Y PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_8Y_Hi) },
- /* Z PCI < 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Lo) },
- /* Z PCI > 1Mb */
- { PCI_DEVICE(PCI_VENDOR_ID_CYCLADES, PCI_DEVICE_ID_CYCLOM_Z_Hi) },
- { } /* end of table */
-};
-MODULE_DEVICE_TABLE(pci, cy_pci_dev_id);
-#endif
-
-static void cy_start(struct tty_struct *);
-static void cy_set_line_char(struct cyclades_port *, struct tty_struct *);
-static int cyz_issue_cmd(struct cyclades_card *, __u32, __u8, __u32);
-#ifdef CONFIG_ISA
-static unsigned detect_isa_irq(void __iomem *);
-#endif /* CONFIG_ISA */
-
-#ifndef CONFIG_CYZ_INTR
-static void cyz_poll(unsigned long);
-
-/* The Cyclades-Z polling cycle is defined by this variable */
-static long cyz_polling_cycle = CZ_DEF_POLL;
-
-static DEFINE_TIMER(cyz_timerlist, cyz_poll, 0, 0);
-
-#else /* CONFIG_CYZ_INTR */
-static void cyz_rx_restart(unsigned long);
-static struct timer_list cyz_rx_full_timer[NR_PORTS];
-#endif /* CONFIG_CYZ_INTR */
-
-static inline void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
-{
- struct cyclades_card *card = port->card;
-
- cy_writeb(port->u.cyy.base_addr + (reg << card->bus_index), val);
-}
-
-static inline u8 cyy_readb(struct cyclades_port *port, u32 reg)
-{
- struct cyclades_card *card = port->card;
-
- return readb(port->u.cyy.base_addr + (reg << card->bus_index));
-}
-
-static inline bool cy_is_Z(struct cyclades_card *card)
-{
- return card->num_chips == (unsigned int)-1;
-}
-
-static inline bool __cyz_fpga_loaded(struct RUNTIME_9060 __iomem *ctl_addr)
-{
- return readl(&ctl_addr->init_ctrl) & (1 << 17);
-}
-
-static inline bool cyz_fpga_loaded(struct cyclades_card *card)
-{
- return __cyz_fpga_loaded(card->ctl_addr.p9060);
-}
-
-static inline bool cyz_is_loaded(struct cyclades_card *card)
-{
- struct FIRM_ID __iomem *fw_id = card->base_addr + ID_ADDRESS;
-
- return (card->hw_ver == ZO_V1 || cyz_fpga_loaded(card)) &&
- readl(&fw_id->signature) == ZFIRM_ID;
-}
-
-static inline int serial_paranoia_check(struct cyclades_port *info,
- const char *name, const char *routine)
-{
-#ifdef SERIAL_PARANOIA_CHECK
- if (!info) {
- printk(KERN_WARNING "cyc Warning: null cyclades_port for (%s) "
- "in %s\n", name, routine);
- return 1;
- }
-
- if (info->magic != CYCLADES_MAGIC) {
- printk(KERN_WARNING "cyc Warning: bad magic number for serial "
- "struct (%s) in %s\n", name, routine);
- return 1;
- }
-#endif
- return 0;
-}
-
-/***********************************************************/
-/********* Start of block of Cyclom-Y specific code ********/
-
-/* This routine waits up to 1000 micro-seconds for the previous
- command to the Cirrus chip to complete and then issues the
- new command. An error is returned if the previous command
- didn't finish within the time limit.
-
- This function is only called from inside spinlock-protected code.
- */
-static int __cyy_issue_cmd(void __iomem *base_addr, u8 cmd, int index)
-{
- void __iomem *ccr = base_addr + (CyCCR << index);
- unsigned int i;
-
- /* Check to see that the previous command has completed */
- for (i = 0; i < 100; i++) {
- if (readb(ccr) == 0)
- break;
- udelay(10L);
- }
- /* if the CCR never cleared, the previous command
- didn't finish within the "reasonable time" */
- if (i == 100)
- return -1;
-
- /* Issue the new command */
- cy_writeb(ccr, cmd);
-
- return 0;
-}
-
-static inline int cyy_issue_cmd(struct cyclades_port *port, u8 cmd)
-{
- return __cyy_issue_cmd(port->u.cyy.base_addr, cmd,
- port->card->bus_index);
-}
-
-#ifdef CONFIG_ISA
-/* ISA interrupt detection code */
-static unsigned detect_isa_irq(void __iomem *address)
-{
- int irq;
- unsigned long irqs, flags;
- int save_xir, save_car;
- int index = 0; /* IRQ probing is only for ISA */
-
- /* forget possible initially masked and pending IRQ */
- irq = probe_irq_off(probe_irq_on());
-
- /* Clear interrupts on the board first */
- cy_writeb(address + (Cy_ClrIntr << index), 0);
- /* Cy_ClrIntr is 0x1800 */
-
- irqs = probe_irq_on();
- /* Wait ... */
- msleep(5);
-
- /* Enable the Tx interrupts on the CD1400 */
- local_irq_save(flags);
- cy_writeb(address + (CyCAR << index), 0);
- __cyy_issue_cmd(address, CyCHAN_CTL | CyENB_XMTR, index);
-
- cy_writeb(address + (CyCAR << index), 0);
- cy_writeb(address + (CySRER << index),
- readb(address + (CySRER << index)) | CyTxRdy);
- local_irq_restore(flags);
-
- /* Wait ... */
- msleep(5);
-
- /* Check which interrupt is in use */
- irq = probe_irq_off(irqs);
-
- /* Clean up */
- save_xir = (u_char) readb(address + (CyTIR << index));
- save_car = readb(address + (CyCAR << index));
- cy_writeb(address + (CyCAR << index), (save_xir & 0x3));
- cy_writeb(address + (CySRER << index),
- readb(address + (CySRER << index)) & ~CyTxRdy);
- cy_writeb(address + (CyTIR << index), (save_xir & 0x3f));
- cy_writeb(address + (CyCAR << index), (save_car));
- cy_writeb(address + (Cy_ClrIntr << index), 0);
- /* Cy_ClrIntr is 0x1800 */
-
- return (irq > 0) ? irq : 0;
-}
-#endif /* CONFIG_ISA */
-
-static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
- void __iomem *base_addr)
-{
- struct cyclades_port *info;
- struct tty_struct *tty;
- int len, index = cinfo->bus_index;
- u8 ivr, save_xir, channel, save_car, data, char_count;
-
-#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyy_interrupt: rcvd intr, chip %d\n", chip);
-#endif
- /* determine the channel & change to that context */
- save_xir = readb(base_addr + (CyRIR << index));
- channel = save_xir & CyIRChannel;
- info = &cinfo->ports[channel + chip * 4];
- save_car = cyy_readb(info, CyCAR);
- cyy_writeb(info, CyCAR, save_xir);
- ivr = cyy_readb(info, CyRIVR) & CyIVRMask;
-
- tty = tty_port_tty_get(&info->port);
- /* if there is nowhere to put the data, discard it */
- if (tty == NULL) {
- if (ivr == CyIVRRxEx) { /* exception */
- data = cyy_readb(info, CyRDSR);
- } else { /* normal character reception */
- char_count = cyy_readb(info, CyRDCR);
- while (char_count--)
- data = cyy_readb(info, CyRDSR);
- }
- goto end;
- }
- /* there is an open port for this data */
- if (ivr == CyIVRRxEx) { /* exception */
- data = cyy_readb(info, CyRDSR);
-
- /* For statistics only */
- if (data & CyBREAK)
- info->icount.brk++;
- else if (data & CyFRAME)
- info->icount.frame++;
- else if (data & CyPARITY)
- info->icount.parity++;
- else if (data & CyOVERRUN)
- info->icount.overrun++;
-
- if (data & info->ignore_status_mask) {
- info->icount.rx++;
- tty_kref_put(tty);
- return;
- }
- if (tty_buffer_request_room(tty, 1)) {
- if (data & info->read_status_mask) {
- if (data & CyBREAK) {
- tty_insert_flip_char(tty,
- cyy_readb(info, CyRDSR),
- TTY_BREAK);
- info->icount.rx++;
- if (info->port.flags & ASYNC_SAK)
- do_SAK(tty);
- } else if (data & CyFRAME) {
- tty_insert_flip_char(tty,
- cyy_readb(info, CyRDSR),
- TTY_FRAME);
- info->icount.rx++;
- info->idle_stats.frame_errs++;
- } else if (data & CyPARITY) {
- /* Pieces of seven... */
- tty_insert_flip_char(tty,
- cyy_readb(info, CyRDSR),
- TTY_PARITY);
- info->icount.rx++;
- info->idle_stats.parity_errs++;
- } else if (data & CyOVERRUN) {
- tty_insert_flip_char(tty, 0,
- TTY_OVERRUN);
- info->icount.rx++;
- /* If the flip buffer itself is
- overflowing, we still lose
- the next incoming character.
- */
- tty_insert_flip_char(tty,
- cyy_readb(info, CyRDSR),
- TTY_FRAME);
- info->icount.rx++;
- info->idle_stats.overruns++;
- /* These two conditions may imply */
- /* a normal read should be done. */
- /* } else if(data & CyTIMEOUT) { */
- /* } else if(data & CySPECHAR) { */
- } else {
- tty_insert_flip_char(tty, 0,
- TTY_NORMAL);
- info->icount.rx++;
- }
- } else {
- tty_insert_flip_char(tty, 0, TTY_NORMAL);
- info->icount.rx++;
- }
- } else {
- /* there was a software buffer overrun and nothing
- * could be done about it!!! */
- info->icount.buf_overrun++;
- info->idle_stats.overruns++;
- }
- } else { /* normal character reception */
- /* load # chars available from the chip */
- char_count = cyy_readb(info, CyRDCR);
-
-#ifdef CY_ENABLE_MONITORING
- ++info->mon.int_count;
- info->mon.char_count += char_count;
- if (char_count > info->mon.char_max)
- info->mon.char_max = char_count;
- info->mon.char_last = char_count;
-#endif
- len = tty_buffer_request_room(tty, char_count);
- while (len--) {
- data = cyy_readb(info, CyRDSR);
- tty_insert_flip_char(tty, data, TTY_NORMAL);
- info->idle_stats.recv_bytes++;
- info->icount.rx++;
-#ifdef CY_16Y_HACK
- udelay(10L);
-#endif
- }
- info->idle_stats.recv_idle = jiffies;
- }
- tty_schedule_flip(tty);
- tty_kref_put(tty);
-end:
- /* end of service */
- cyy_writeb(info, CyRIR, save_xir & 0x3f);
- cyy_writeb(info, CyCAR, save_car);
-}
-
-static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
- void __iomem *base_addr)
-{
- struct cyclades_port *info;
- struct tty_struct *tty;
- int char_count, index = cinfo->bus_index;
- u8 save_xir, channel, save_car, outch;
-
- /* Since we only get here when the transmit buffer
- is empty, we know we can always stuff a dozen
- characters. */
-#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyy_interrupt: xmit intr, chip %d\n", chip);
-#endif
-
- /* determine the channel & change to that context */
- save_xir = readb(base_addr + (CyTIR << index));
- channel = save_xir & CyIRChannel;
- save_car = readb(base_addr + (CyCAR << index));
- cy_writeb(base_addr + (CyCAR << index), save_xir);
-
- info = &cinfo->ports[channel + chip * 4];
- tty = tty_port_tty_get(&info->port);
- if (tty == NULL) {
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy);
- goto end;
- }
-
- /* load the on-chip space for outbound data */
- char_count = info->xmit_fifo_size;
-
- if (info->x_char) { /* send special char */
- outch = info->x_char;
- cyy_writeb(info, CyTDR, outch);
- char_count--;
- info->icount.tx++;
- info->x_char = 0;
- }
-
- if (info->breakon || info->breakoff) {
- if (info->breakon) {
- cyy_writeb(info, CyTDR, 0);
- cyy_writeb(info, CyTDR, 0x81);
- info->breakon = 0;
- char_count -= 2;
- }
- if (info->breakoff) {
- cyy_writeb(info, CyTDR, 0);
- cyy_writeb(info, CyTDR, 0x83);
- info->breakoff = 0;
- char_count -= 2;
- }
- }
-
- while (char_count-- > 0) {
- if (!info->xmit_cnt) {
- if (cyy_readb(info, CySRER) & CyTxMpty) {
- cyy_writeb(info, CySRER,
- cyy_readb(info, CySRER) & ~CyTxMpty);
- } else {
- cyy_writeb(info, CySRER, CyTxMpty |
- (cyy_readb(info, CySRER) & ~CyTxRdy));
- }
- goto done;
- }
- if (info->port.xmit_buf == NULL) {
- cyy_writeb(info, CySRER,
- cyy_readb(info, CySRER) & ~CyTxRdy);
- goto done;
- }
- if (tty->stopped || tty->hw_stopped) {
- cyy_writeb(info, CySRER,
- cyy_readb(info, CySRER) & ~CyTxRdy);
- goto done;
- }
- /* Because the Embedded Transmit Commands have been enabled,
- * we must check to see if the escape character, NULL, is being
- * sent. If it is, we must ensure that there is room for it to
- * be doubled in the output stream. Therefore we no longer
- * advance the pointer when the character is fetched, but
- * rather wait until after the check for a NULL output
- * character. This is necessary because there may not be room
- * for the two chars needed to send a NULL.)
- */
- outch = info->port.xmit_buf[info->xmit_tail];
- if (outch) {
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1) &
- (SERIAL_XMIT_SIZE - 1);
- cyy_writeb(info, CyTDR, outch);
- info->icount.tx++;
- } else {
- if (char_count > 1) {
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1) &
- (SERIAL_XMIT_SIZE - 1);
- cyy_writeb(info, CyTDR, outch);
- cyy_writeb(info, CyTDR, 0);
- info->icount.tx++;
- char_count--;
- }
- }
- }
-
-done:
- tty_wakeup(tty);
- tty_kref_put(tty);
-end:
- /* end of service */
- cyy_writeb(info, CyTIR, save_xir & 0x3f);
- cyy_writeb(info, CyCAR, save_car);
-}
-
-static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
- void __iomem *base_addr)
-{
- struct cyclades_port *info;
- struct tty_struct *tty;
- int index = cinfo->bus_index;
- u8 save_xir, channel, save_car, mdm_change, mdm_status;
-
- /* determine the channel & change to that context */
- save_xir = readb(base_addr + (CyMIR << index));
- channel = save_xir & CyIRChannel;
- info = &cinfo->ports[channel + chip * 4];
- save_car = cyy_readb(info, CyCAR);
- cyy_writeb(info, CyCAR, save_xir);
-
- mdm_change = cyy_readb(info, CyMISR);
- mdm_status = cyy_readb(info, CyMSVR1);
-
- tty = tty_port_tty_get(&info->port);
- if (!tty)
- goto end;
-
- if (mdm_change & CyANY_DELTA) {
- /* For statistics only */
- if (mdm_change & CyDCD)
- info->icount.dcd++;
- if (mdm_change & CyCTS)
- info->icount.cts++;
- if (mdm_change & CyDSR)
- info->icount.dsr++;
- if (mdm_change & CyRI)
- info->icount.rng++;
-
- wake_up_interruptible(&info->port.delta_msr_wait);
- }
-
- if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
- if (mdm_status & CyDCD)
- wake_up_interruptible(&info->port.open_wait);
- else
- tty_hangup(tty);
- }
- if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
- if (tty->hw_stopped) {
- if (mdm_status & CyCTS) {
- /* cy_start isn't used
- because... !!! */
- tty->hw_stopped = 0;
- cyy_writeb(info, CySRER,
- cyy_readb(info, CySRER) | CyTxRdy);
- tty_wakeup(tty);
- }
- } else {
- if (!(mdm_status & CyCTS)) {
- /* cy_stop isn't used
- because ... !!! */
- tty->hw_stopped = 1;
- cyy_writeb(info, CySRER,
- cyy_readb(info, CySRER) & ~CyTxRdy);
- }
- }
- }
-/* if (mdm_change & CyDSR) {
- }
- if (mdm_change & CyRI) {
- }*/
- tty_kref_put(tty);
-end:
- /* end of service */
- cyy_writeb(info, CyMIR, save_xir & 0x3f);
- cyy_writeb(info, CyCAR, save_car);
-}
-
-/* The real interrupt service routine is called
- whenever the card wants its hand held--chars
- received, out buffer empty, modem change, etc.
- */
-static irqreturn_t cyy_interrupt(int irq, void *dev_id)
-{
- int status;
- struct cyclades_card *cinfo = dev_id;
- void __iomem *base_addr, *card_base_addr;
- unsigned int chip, too_many, had_work;
- int index;
-
- if (unlikely(cinfo == NULL)) {
-#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyy_interrupt: spurious interrupt %d\n",
- irq);
-#endif
- return IRQ_NONE; /* spurious interrupt */
- }
-
- card_base_addr = cinfo->base_addr;
- index = cinfo->bus_index;
-
- /* card was not initialized yet (e.g. DEBUG_SHIRQ) */
- if (unlikely(card_base_addr == NULL))
- return IRQ_HANDLED;
-
- /* This loop checks all chips in the card. Make a note whenever
- _any_ chip had some work to do, as this is considered an
- indication that there will be more to do. Only when no chip
- has any work does this outermost loop exit.
- */
- do {
- had_work = 0;
- for (chip = 0; chip < cinfo->num_chips; chip++) {
- base_addr = cinfo->base_addr +
- (cy_chip_offset[chip] << index);
- too_many = 0;
- while ((status = readb(base_addr +
- (CySVRR << index))) != 0x00) {
- had_work++;
- /* The purpose of the following test is to ensure that
- no chip can monopolize the driver. This forces the
- chips to be checked in a round-robin fashion (after
- draining each of a bunch (1000) of characters).
- */
- if (1000 < too_many++)
- break;
- spin_lock(&cinfo->card_lock);
- if (status & CySRReceive) /* rx intr */
- cyy_chip_rx(cinfo, chip, base_addr);
- if (status & CySRTransmit) /* tx intr */
- cyy_chip_tx(cinfo, chip, base_addr);
- if (status & CySRModem) /* modem intr */
- cyy_chip_modem(cinfo, chip, base_addr);
- spin_unlock(&cinfo->card_lock);
- }
- }
- } while (had_work);
-
- /* clear interrupts */
- spin_lock(&cinfo->card_lock);
- cy_writeb(card_base_addr + (Cy_ClrIntr << index), 0);
- /* Cy_ClrIntr is 0x1800 */
- spin_unlock(&cinfo->card_lock);
- return IRQ_HANDLED;
-} /* cyy_interrupt */
-
-static void cyy_change_rts_dtr(struct cyclades_port *info, unsigned int set,
- unsigned int clear)
-{
- struct cyclades_card *card = info->card;
- int channel = info->line - card->first_line;
- u32 rts, dtr, msvrr, msvrd;
-
- channel &= 0x03;
-
- if (info->rtsdtr_inv) {
- msvrr = CyMSVR2;
- msvrd = CyMSVR1;
- rts = CyDTR;
- dtr = CyRTS;
- } else {
- msvrr = CyMSVR1;
- msvrd = CyMSVR2;
- rts = CyRTS;
- dtr = CyDTR;
- }
- if (set & TIOCM_RTS) {
- cyy_writeb(info, CyCAR, channel);
- cyy_writeb(info, msvrr, rts);
- }
- if (clear & TIOCM_RTS) {
- cyy_writeb(info, CyCAR, channel);
- cyy_writeb(info, msvrr, ~rts);
- }
- if (set & TIOCM_DTR) {
- cyy_writeb(info, CyCAR, channel);
- cyy_writeb(info, msvrd, dtr);
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "cyc:set_modem_info raising DTR\n");
- printk(KERN_DEBUG " status: 0x%x, 0x%x\n",
- cyy_readb(info, CyMSVR1),
- cyy_readb(info, CyMSVR2));
-#endif
- }
- if (clear & TIOCM_DTR) {
- cyy_writeb(info, CyCAR, channel);
- cyy_writeb(info, msvrd, ~dtr);
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "cyc:set_modem_info dropping DTR\n");
- printk(KERN_DEBUG " status: 0x%x, 0x%x\n",
- cyy_readb(info, CyMSVR1),
- cyy_readb(info, CyMSVR2));
-#endif
- }
-}
-
-/***********************************************************/
-/********* End of block of Cyclom-Y specific code **********/
-/******** Start of block of Cyclades-Z specific code *******/
-/***********************************************************/
-
-static int
-cyz_fetch_msg(struct cyclades_card *cinfo,
- __u32 *channel, __u8 *cmd, __u32 *param)
-{
- struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl;
- unsigned long loc_doorbell;
-
- loc_doorbell = readl(&cinfo->ctl_addr.p9060->loc_doorbell);
- if (loc_doorbell) {
- *cmd = (char)(0xff & loc_doorbell);
- *channel = readl(&board_ctrl->fwcmd_channel);
- *param = (__u32) readl(&board_ctrl->fwcmd_param);
- cy_writel(&cinfo->ctl_addr.p9060->loc_doorbell, 0xffffffff);
- return 1;
- }
- return 0;
-} /* cyz_fetch_msg */
-
-static int
-cyz_issue_cmd(struct cyclades_card *cinfo,
- __u32 channel, __u8 cmd, __u32 param)
-{
- struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl;
- __u32 __iomem *pci_doorbell;
- unsigned int index;
-
- if (!cyz_is_loaded(cinfo))
- return -1;
-
- index = 0;
- pci_doorbell = &cinfo->ctl_addr.p9060->pci_doorbell;
- while ((readl(pci_doorbell) & 0xff) != 0) {
- if (index++ == 1000)
- return (int)(readl(pci_doorbell) & 0xff);
- udelay(50L);
- }
- cy_writel(&board_ctrl->hcmd_channel, channel);
- cy_writel(&board_ctrl->hcmd_param, param);
- cy_writel(pci_doorbell, (long)cmd);
-
- return 0;
-} /* cyz_issue_cmd */
-
-static void cyz_handle_rx(struct cyclades_port *info, struct tty_struct *tty)
-{
- struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl;
- struct cyclades_card *cinfo = info->card;
- unsigned int char_count;
- int len;
-#ifdef BLOCKMOVE
- unsigned char *buf;
-#else
- char data;
-#endif
- __u32 rx_put, rx_get, new_rx_get, rx_bufsize, rx_bufaddr;
-
- rx_get = new_rx_get = readl(&buf_ctrl->rx_get);
- rx_put = readl(&buf_ctrl->rx_put);
- rx_bufsize = readl(&buf_ctrl->rx_bufsize);
- rx_bufaddr = readl(&buf_ctrl->rx_bufaddr);
- if (rx_put >= rx_get)
- char_count = rx_put - rx_get;
- else
- char_count = rx_put - rx_get + rx_bufsize;
-
- if (char_count) {
-#ifdef CY_ENABLE_MONITORING
- info->mon.int_count++;
- info->mon.char_count += char_count;
- if (char_count > info->mon.char_max)
- info->mon.char_max = char_count;
- info->mon.char_last = char_count;
-#endif
- if (tty == NULL) {
- /* flush received characters */
- new_rx_get = (new_rx_get + char_count) &
- (rx_bufsize - 1);
- info->rflush_count++;
- } else {
-#ifdef BLOCKMOVE
- /* we'd like to use memcpy(t, f, n) and memset(s, c, count)
- for performance, but because of buffer boundaries, there
- may be several steps to the operation */
- while (1) {
- len = tty_prepare_flip_string(tty, &buf,
- char_count);
- if (!len)
- break;
-
- len = min_t(unsigned int, min(len, char_count),
- rx_bufsize - new_rx_get);
-
- memcpy_fromio(buf, cinfo->base_addr +
- rx_bufaddr + new_rx_get, len);
-
- new_rx_get = (new_rx_get + len) &
- (rx_bufsize - 1);
- char_count -= len;
- info->icount.rx += len;
- info->idle_stats.recv_bytes += len;
- }
-#else
- len = tty_buffer_request_room(tty, char_count);
- while (len--) {
- data = readb(cinfo->base_addr + rx_bufaddr +
- new_rx_get);
- new_rx_get = (new_rx_get + 1) &
- (rx_bufsize - 1);
- tty_insert_flip_char(tty, data, TTY_NORMAL);
- info->idle_stats.recv_bytes++;
- info->icount.rx++;
- }
-#endif
-#ifdef CONFIG_CYZ_INTR
- /* Recalculate the number of chars in the RX buffer and issue
- a cmd in case it's higher than the RX high water mark */
- rx_put = readl(&buf_ctrl->rx_put);
- if (rx_put >= rx_get)
- char_count = rx_put - rx_get;
- else
- char_count = rx_put - rx_get + rx_bufsize;
- if (char_count >= readl(&buf_ctrl->rx_threshold) &&
- !timer_pending(&cyz_rx_full_timer[
- info->line]))
- mod_timer(&cyz_rx_full_timer[info->line],
- jiffies + 1);
-#endif
- info->idle_stats.recv_idle = jiffies;
- tty_schedule_flip(tty);
- }
- /* Update rx_get */
- cy_writel(&buf_ctrl->rx_get, new_rx_get);
- }
-}
-
-static void cyz_handle_tx(struct cyclades_port *info, struct tty_struct *tty)
-{
- struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl;
- struct cyclades_card *cinfo = info->card;
- u8 data;
- unsigned int char_count;
-#ifdef BLOCKMOVE
- int small_count;
-#endif
- __u32 tx_put, tx_get, tx_bufsize, tx_bufaddr;
-
- if (info->xmit_cnt <= 0) /* Nothing to transmit */
- return;
-
- tx_get = readl(&buf_ctrl->tx_get);
- tx_put = readl(&buf_ctrl->tx_put);
- tx_bufsize = readl(&buf_ctrl->tx_bufsize);
- tx_bufaddr = readl(&buf_ctrl->tx_bufaddr);
- if (tx_put >= tx_get)
- char_count = tx_get - tx_put - 1 + tx_bufsize;
- else
- char_count = tx_get - tx_put - 1;
-
- if (char_count) {
-
- if (tty == NULL)
- goto ztxdone;
-
- if (info->x_char) { /* send special char */
- data = info->x_char;
-
- cy_writeb(cinfo->base_addr + tx_bufaddr + tx_put, data);
- tx_put = (tx_put + 1) & (tx_bufsize - 1);
- info->x_char = 0;
- char_count--;
- info->icount.tx++;
- }
-#ifdef BLOCKMOVE
- while (0 < (small_count = min_t(unsigned int,
- tx_bufsize - tx_put, min_t(unsigned int,
- (SERIAL_XMIT_SIZE - info->xmit_tail),
- min_t(unsigned int, info->xmit_cnt,
- char_count))))) {
-
- memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr +
- tx_put),
- &info->port.xmit_buf[info->xmit_tail],
- small_count);
-
- tx_put = (tx_put + small_count) & (tx_bufsize - 1);
- char_count -= small_count;
- info->icount.tx += small_count;
- info->xmit_cnt -= small_count;
- info->xmit_tail = (info->xmit_tail + small_count) &
- (SERIAL_XMIT_SIZE - 1);
- }
-#else
- while (info->xmit_cnt && char_count) {
- data = info->port.xmit_buf[info->xmit_tail];
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1) &
- (SERIAL_XMIT_SIZE - 1);
-
- cy_writeb(cinfo->base_addr + tx_bufaddr + tx_put, data);
- tx_put = (tx_put + 1) & (tx_bufsize - 1);
- char_count--;
- info->icount.tx++;
- }
-#endif
- tty_wakeup(tty);
-ztxdone:
- /* Update tx_put */
- cy_writel(&buf_ctrl->tx_put, tx_put);
- }
-}
-
-static void cyz_handle_cmd(struct cyclades_card *cinfo)
-{
- struct BOARD_CTRL __iomem *board_ctrl = cinfo->board_ctrl;
- struct tty_struct *tty;
- struct cyclades_port *info;
- __u32 channel, param, fw_ver;
- __u8 cmd;
- int special_count;
- int delta_count;
-
- fw_ver = readl(&board_ctrl->fw_version);
-
- while (cyz_fetch_msg(cinfo, &channel, &cmd, &param) == 1) {
- special_count = 0;
- delta_count = 0;
- info = &cinfo->ports[channel];
- tty = tty_port_tty_get(&info->port);
- if (tty == NULL)
- continue;
-
- switch (cmd) {
- case C_CM_PR_ERROR:
- tty_insert_flip_char(tty, 0, TTY_PARITY);
- info->icount.rx++;
- special_count++;
- break;
- case C_CM_FR_ERROR:
- tty_insert_flip_char(tty, 0, TTY_FRAME);
- info->icount.rx++;
- special_count++;
- break;
- case C_CM_RXBRK:
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- info->icount.rx++;
- special_count++;
- break;
- case C_CM_MDCD:
- info->icount.dcd++;
- delta_count++;
- if (info->port.flags & ASYNC_CHECK_CD) {
- u32 dcd = fw_ver > 241 ? param :
- readl(&info->u.cyz.ch_ctrl->rs_status);
- if (dcd & C_RS_DCD)
- wake_up_interruptible(&info->port.open_wait);
- else
- tty_hangup(tty);
- }
- break;
- case C_CM_MCTS:
- info->icount.cts++;
- delta_count++;
- break;
- case C_CM_MRI:
- info->icount.rng++;
- delta_count++;
- break;
- case C_CM_MDSR:
- info->icount.dsr++;
- delta_count++;
- break;
-#ifdef Z_WAKE
- case C_CM_IOCTLW:
- complete(&info->shutdown_wait);
- break;
-#endif
-#ifdef CONFIG_CYZ_INTR
- case C_CM_RXHIWM:
- case C_CM_RXNNDT:
- case C_CM_INTBACK2:
- /* Reception Interrupt */
-#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyz_interrupt: rcvd intr, card %d, "
- "port %ld\n", info->card, channel);
-#endif
- cyz_handle_rx(info, tty);
- break;
- case C_CM_TXBEMPTY:
- case C_CM_TXLOWWM:
- case C_CM_INTBACK:
- /* Transmission Interrupt */
-#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyz_interrupt: xmit intr, card %d, "
- "port %ld\n", info->card, channel);
-#endif
- cyz_handle_tx(info, tty);
- break;
-#endif /* CONFIG_CYZ_INTR */
- case C_CM_FATAL:
- /* should do something with this !!! */
- break;
- default:
- break;
- }
- if (delta_count)
- wake_up_interruptible(&info->port.delta_msr_wait);
- if (special_count)
- tty_schedule_flip(tty);
- tty_kref_put(tty);
- }
-}
-
-#ifdef CONFIG_CYZ_INTR
-static irqreturn_t cyz_interrupt(int irq, void *dev_id)
-{
- struct cyclades_card *cinfo = dev_id;
-
- if (unlikely(!cyz_is_loaded(cinfo))) {
-#ifdef CY_DEBUG_INTERRUPTS
- printk(KERN_DEBUG "cyz_interrupt: board not yet loaded "
- "(IRQ%d).\n", irq);
-#endif
- return IRQ_NONE;
- }
-
- /* Handle the interrupts */
- cyz_handle_cmd(cinfo);
-
- return IRQ_HANDLED;
-} /* cyz_interrupt */
-
-static void cyz_rx_restart(unsigned long arg)
-{
- struct cyclades_port *info = (struct cyclades_port *)arg;
- struct cyclades_card *card = info->card;
- int retval;
- __u32 channel = info->line - card->first_line;
- unsigned long flags;
-
- spin_lock_irqsave(&card->card_lock, flags);
- retval = cyz_issue_cmd(card, channel, C_CM_INTBACK2, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:cyz_rx_restart retval on ttyC%d was %x\n",
- info->line, retval);
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
-}
-
-#else /* CONFIG_CYZ_INTR */
-
-static void cyz_poll(unsigned long arg)
-{
- struct cyclades_card *cinfo;
- struct cyclades_port *info;
- unsigned long expires = jiffies + HZ;
- unsigned int port, card;
-
- for (card = 0; card < NR_CARDS; card++) {
- cinfo = &cy_card[card];
-
- if (!cy_is_Z(cinfo))
- continue;
- if (!cyz_is_loaded(cinfo))
- continue;
-
- /* Skip first polling cycle to avoid racing conditions with the FW */
- if (!cinfo->intr_enabled) {
- cinfo->intr_enabled = 1;
- continue;
- }
-
- cyz_handle_cmd(cinfo);
-
- for (port = 0; port < cinfo->nports; port++) {
- struct tty_struct *tty;
-
- info = &cinfo->ports[port];
- tty = tty_port_tty_get(&info->port);
- /* OK to pass NULL to the handle functions below.
- They need to drop the data in that case. */
-
- if (!info->throttle)
- cyz_handle_rx(info, tty);
- cyz_handle_tx(info, tty);
- tty_kref_put(tty);
- }
- /* poll every 'cyz_polling_cycle' period */
- expires = jiffies + cyz_polling_cycle;
- }
- mod_timer(&cyz_timerlist, expires);
-} /* cyz_poll */
-
-#endif /* CONFIG_CYZ_INTR */
-
-/********** End of block of Cyclades-Z specific code *********/
-/***********************************************************/
-
-/* This is called whenever a port becomes active;
- interrupts are enabled and DTR & RTS are turned on.
- */
-static int cy_startup(struct cyclades_port *info, struct tty_struct *tty)
-{
- struct cyclades_card *card;
- unsigned long flags;
- int retval = 0;
- int channel;
- unsigned long page;
-
- card = info->card;
- channel = info->line - card->first_line;
-
- page = get_zeroed_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
-
- spin_lock_irqsave(&card->card_lock, flags);
-
- if (info->port.flags & ASYNC_INITIALIZED)
- goto errout;
-
- if (!info->type) {
- set_bit(TTY_IO_ERROR, &tty->flags);
- goto errout;
- }
-
- if (info->port.xmit_buf)
- free_page(page);
- else
- info->port.xmit_buf = (unsigned char *)page;
-
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- cy_set_line_char(info, tty);
-
- if (!cy_is_Z(card)) {
- channel &= 0x03;
-
- spin_lock_irqsave(&card->card_lock, flags);
-
- cyy_writeb(info, CyCAR, channel);
-
- cyy_writeb(info, CyRTPR,
- (info->default_timeout ? info->default_timeout : 0x02));
- /* 10ms rx timeout */
-
- cyy_issue_cmd(info, CyCHAN_CTL | CyENB_RCVR | CyENB_XMTR);
-
- cyy_change_rts_dtr(info, TIOCM_RTS | TIOCM_DTR, 0);
-
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyRxData);
- } else {
- struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
-
- if (!cyz_is_loaded(card))
- return -ENODEV;
-
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc startup Z card %d, channel %d, "
- "base_addr %p\n", card, channel, card->base_addr);
-#endif
- spin_lock_irqsave(&card->card_lock, flags);
-
- cy_writel(&ch_ctrl->op_mode, C_CH_ENABLE);
-#ifdef Z_WAKE
-#ifdef CONFIG_CYZ_INTR
- cy_writel(&ch_ctrl->intr_enable,
- C_IN_TXBEMPTY | C_IN_TXLOWWM | C_IN_RXHIWM |
- C_IN_RXNNDT | C_IN_IOCTLW | C_IN_MDCD);
-#else
- cy_writel(&ch_ctrl->intr_enable,
- C_IN_IOCTLW | C_IN_MDCD);
-#endif /* CONFIG_CYZ_INTR */
-#else
-#ifdef CONFIG_CYZ_INTR
- cy_writel(&ch_ctrl->intr_enable,
- C_IN_TXBEMPTY | C_IN_TXLOWWM | C_IN_RXHIWM |
- C_IN_RXNNDT | C_IN_MDCD);
-#else
- cy_writel(&ch_ctrl->intr_enable, C_IN_MDCD);
-#endif /* CONFIG_CYZ_INTR */
-#endif /* Z_WAKE */
-
- retval = cyz_issue_cmd(card, channel, C_CM_IOCTL, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:startup(1) retval on ttyC%d was "
- "%x\n", info->line, retval);
- }
-
- /* Flush RX buffers before raising DTR and RTS */
- retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_RX, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:startup(2) retval on ttyC%d was "
- "%x\n", info->line, retval);
- }
-
- /* set timeout !!! */
- /* set RTS and DTR !!! */
- tty_port_raise_dtr_rts(&info->port);
-
- /* enable send, recv, modem !!! */
- }
-
- info->port.flags |= ASYNC_INITIALIZED;
-
- clear_bit(TTY_IO_ERROR, &tty->flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- info->breakon = info->breakoff = 0;
- memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
- info->idle_stats.in_use =
- info->idle_stats.recv_idle =
- info->idle_stats.xmit_idle = jiffies;
-
- spin_unlock_irqrestore(&card->card_lock, flags);
-
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc startup done\n");
-#endif
- return 0;
-
-errout:
- spin_unlock_irqrestore(&card->card_lock, flags);
- free_page(page);
- return retval;
-} /* startup */
-
-static void start_xmit(struct cyclades_port *info)
-{
- struct cyclades_card *card = info->card;
- unsigned long flags;
- int channel = info->line - card->first_line;
-
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_writeb(info, CyCAR, channel & 0x03);
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyTxRdy);
- spin_unlock_irqrestore(&card->card_lock, flags);
- } else {
-#ifdef CONFIG_CYZ_INTR
- int retval;
-
- spin_lock_irqsave(&card->card_lock, flags);
- retval = cyz_issue_cmd(card, channel, C_CM_INTBACK, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:start_xmit retval on ttyC%d was "
- "%x\n", info->line, retval);
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
-#else /* CONFIG_CYZ_INTR */
- /* Don't have to do anything at this time */
-#endif /* CONFIG_CYZ_INTR */
- }
-} /* start_xmit */
-
-/*
- * This routine shuts down a serial port; interrupts are disabled,
- * and DTR is dropped if the hangup on close termio flag is on.
- */
-static void cy_shutdown(struct cyclades_port *info, struct tty_struct *tty)
-{
- struct cyclades_card *card;
- unsigned long flags;
- int channel;
-
- if (!(info->port.flags & ASYNC_INITIALIZED))
- return;
-
- card = info->card;
- channel = info->line - card->first_line;
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
-
- /* Clear delta_msr_wait queue to avoid mem leaks. */
- wake_up_interruptible(&info->port.delta_msr_wait);
-
- if (info->port.xmit_buf) {
- unsigned char *temp;
- temp = info->port.xmit_buf;
- info->port.xmit_buf = NULL;
- free_page((unsigned long)temp);
- }
- if (tty->termios->c_cflag & HUPCL)
- cyy_change_rts_dtr(info, 0, TIOCM_RTS | TIOCM_DTR);
-
- cyy_issue_cmd(info, CyCHAN_CTL | CyDIS_RCVR);
- /* it may be appropriate to clear _XMIT at
- some later date (after testing)!!! */
-
- set_bit(TTY_IO_ERROR, &tty->flags);
- info->port.flags &= ~ASYNC_INITIALIZED;
- spin_unlock_irqrestore(&card->card_lock, flags);
- } else {
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc shutdown Z card %d, channel %d, "
- "base_addr %p\n", card, channel, card->base_addr);
-#endif
-
- if (!cyz_is_loaded(card))
- return;
-
- spin_lock_irqsave(&card->card_lock, flags);
-
- if (info->port.xmit_buf) {
- unsigned char *temp;
- temp = info->port.xmit_buf;
- info->port.xmit_buf = NULL;
- free_page((unsigned long)temp);
- }
-
- if (tty->termios->c_cflag & HUPCL)
- tty_port_lower_dtr_rts(&info->port);
-
- set_bit(TTY_IO_ERROR, &tty->flags);
- info->port.flags &= ~ASYNC_INITIALIZED;
-
- spin_unlock_irqrestore(&card->card_lock, flags);
- }
-
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc shutdown done\n");
-#endif
-} /* shutdown */
-
-/*
- * ------------------------------------------------------------
- * cy_open() and friends
- * ------------------------------------------------------------
- */
-
-/*
- * This routine is called whenever a serial port is opened. It
- * performs the serial-specific initialization for the tty structure.
- */
-static int cy_open(struct tty_struct *tty, struct file *filp)
-{
- struct cyclades_port *info;
- unsigned int i, line;
- int retval;
-
- line = tty->index;
- if (tty->index < 0 || NR_PORTS <= line)
- return -ENODEV;
-
- for (i = 0; i < NR_CARDS; i++)
- if (line < cy_card[i].first_line + cy_card[i].nports &&
- line >= cy_card[i].first_line)
- break;
- if (i >= NR_CARDS)
- return -ENODEV;
- info = &cy_card[i].ports[line - cy_card[i].first_line];
- if (info->line < 0)
- return -ENODEV;
-
- /* If the card's firmware hasn't been loaded,
- treat it as absent from the system. This
- will make the user pay attention.
- */
- if (cy_is_Z(info->card)) {
- struct cyclades_card *cinfo = info->card;
- struct FIRM_ID __iomem *firm_id = cinfo->base_addr + ID_ADDRESS;
-
- if (!cyz_is_loaded(cinfo)) {
- if (cinfo->hw_ver == ZE_V1 && cyz_fpga_loaded(cinfo) &&
- readl(&firm_id->signature) ==
- ZFIRM_HLT) {
- printk(KERN_ERR "cyc:Cyclades-Z Error: you "
- "need an external power supply for "
- "this number of ports.\nFirmware "
- "halted.\n");
- } else {
- printk(KERN_ERR "cyc:Cyclades-Z firmware not "
- "yet loaded\n");
- }
- return -ENODEV;
- }
-#ifdef CONFIG_CYZ_INTR
- else {
- /* In case this Z board is operating in interrupt mode, its
- interrupts should be enabled as soon as the first open
- happens to one of its ports. */
- if (!cinfo->intr_enabled) {
- u16 intr;
-
- /* Enable interrupts on the PLX chip */
- intr = readw(&cinfo->ctl_addr.p9060->
- intr_ctrl_stat) | 0x0900;
- cy_writew(&cinfo->ctl_addr.p9060->
- intr_ctrl_stat, intr);
- /* Enable interrupts on the FW */
- retval = cyz_issue_cmd(cinfo, 0,
- C_CM_IRQ_ENBL, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:IRQ enable retval "
- "was %x\n", retval);
- }
- cinfo->intr_enabled = 1;
- }
- }
-#endif /* CONFIG_CYZ_INTR */
- /* Make sure this Z port really exists in hardware */
- if (info->line > (cinfo->first_line + cinfo->nports - 1))
- return -ENODEV;
- }
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line);
-#endif
- tty->driver_data = info;
- if (serial_paranoia_check(info, tty->name, "cy_open"))
- return -ENODEV;
-
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
- info->port.count);
-#endif
- info->port.count++;
-#ifdef CY_DEBUG_COUNT
- printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
- current->pid, info->port.count);
-#endif
-
- /*
- * If the port is the middle of closing, bail out now
- */
- if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
- wait_event_interruptible_tty(info->port.close_wait,
- !(info->port.flags & ASYNC_CLOSING));
- return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
- }
-
- /*
- * Start up serial port
- */
- retval = cy_startup(info, tty);
- if (retval)
- return retval;
-
- retval = tty_port_block_til_ready(&info->port, tty, filp);
- if (retval) {
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc:cy_open returning after block_til_ready "
- "with %d\n", retval);
-#endif
- return retval;
- }
-
- info->throttle = 0;
- tty_port_tty_set(&info->port, tty);
-
-#ifdef CY_DEBUG_OPEN
- printk(KERN_DEBUG "cyc:cy_open done\n");
-#endif
- return 0;
-} /* cy_open */
-
-/*
- * cy_wait_until_sent() --- wait until the transmitter is empty
- */
-static void cy_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- struct cyclades_card *card;
- struct cyclades_port *info = tty->driver_data;
- unsigned long orig_jiffies;
- int char_time;
-
- if (serial_paranoia_check(info, tty->name, "cy_wait_until_sent"))
- return;
-
- if (info->xmit_fifo_size == 0)
- return; /* Just in case.... */
-
- orig_jiffies = jiffies;
- /*
- * Set the check interval to be 1/5 of the estimated time to
- * send a single character, and make it at least 1. The check
- * interval should also be less than the timeout.
- *
- * Note: we have to use pretty tight timings here to satisfy
- * the NIST-PCTS.
- */
- char_time = (info->timeout - HZ / 50) / info->xmit_fifo_size;
- char_time = char_time / 5;
- if (char_time <= 0)
- char_time = 1;
- if (timeout < 0)
- timeout = 0;
- if (timeout)
- char_time = min(char_time, timeout);
- /*
- * If the transmitter hasn't cleared in twice the approximate
- * amount of time to send the entire FIFO, it probably won't
- * ever clear. This assumes the UART isn't doing flow
- * control, which is currently the case. Hence, if it ever
- * takes longer than info->timeout, this is probably due to a
- * UART bug of some kind. So, we clamp the timeout parameter at
- * 2*info->timeout.
- */
- if (!timeout || timeout > 2 * info->timeout)
- timeout = 2 * info->timeout;
-#ifdef CY_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_DEBUG "In cy_wait_until_sent(%d) check=%d, jiff=%lu...",
- timeout, char_time, jiffies);
-#endif
- card = info->card;
- if (!cy_is_Z(card)) {
- while (cyy_readb(info, CySRER) & CyTxRdy) {
-#ifdef CY_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_DEBUG "Not clean (jiff=%lu)...", jiffies);
-#endif
- if (msleep_interruptible(jiffies_to_msecs(char_time)))
- break;
- if (timeout && time_after(jiffies, orig_jiffies +
- timeout))
- break;
- }
- }
- /* Run one more char cycle */
- msleep_interruptible(jiffies_to_msecs(char_time * 5));
-#ifdef CY_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_DEBUG "Clean (jiff=%lu)...done\n", jiffies);
-#endif
-}
-
-static void cy_flush_buffer(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- int channel, retval;
- unsigned long flags;
-
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_flush_buffer ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
- return;
-
- card = info->card;
- channel = info->line - card->first_line;
-
- spin_lock_irqsave(&card->card_lock, flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- if (cy_is_Z(card)) { /* If it is a Z card, flush the on-board
- buffers as well */
- spin_lock_irqsave(&card->card_lock, flags);
- retval = cyz_issue_cmd(card, channel, C_CM_FLUSH_TX, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc: flush_buffer retval on ttyC%d "
- "was %x\n", info->line, retval);
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
- }
- tty_wakeup(tty);
-} /* cy_flush_buffer */
-
-
-static void cy_do_close(struct tty_port *port)
-{
- struct cyclades_port *info = container_of(port, struct cyclades_port,
- port);
- struct cyclades_card *card;
- unsigned long flags;
- int channel;
-
- card = info->card;
- channel = info->line - card->first_line;
- spin_lock_irqsave(&card->card_lock, flags);
-
- if (!cy_is_Z(card)) {
- /* Stop accepting input */
- cyy_writeb(info, CyCAR, channel & 0x03);
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyRxData);
- if (info->port.flags & ASYNC_INITIALIZED) {
- /* Waiting for on-board buffers to be empty before
- closing the port */
- spin_unlock_irqrestore(&card->card_lock, flags);
- cy_wait_until_sent(port->tty, info->timeout);
- spin_lock_irqsave(&card->card_lock, flags);
- }
- } else {
-#ifdef Z_WAKE
- /* Waiting for on-board buffers to be empty before closing
- the port */
- struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
- int retval;
-
- if (readl(&ch_ctrl->flow_status) != C_FS_TXIDLE) {
- retval = cyz_issue_cmd(card, channel, C_CM_IOCTLW, 0L);
- if (retval != 0) {
- printk(KERN_DEBUG "cyc:cy_close retval on "
- "ttyC%d was %x\n", info->line, retval);
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
- wait_for_completion_interruptible(&info->shutdown_wait);
- spin_lock_irqsave(&card->card_lock, flags);
- }
-#endif
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
- cy_shutdown(info, port->tty);
-}
-
-/*
- * This routine is called when a particular tty device is closed.
- */
-static void cy_close(struct tty_struct *tty, struct file *filp)
-{
- struct cyclades_port *info = tty->driver_data;
- if (!info || serial_paranoia_check(info, tty->name, "cy_close"))
- return;
- tty_port_close(&info->port, tty, filp);
-} /* cy_close */
-
-/* This routine gets called when tty_write has put something into
- * the write_queue. The characters may come from user space or
- * kernel space.
- *
- * This routine will return the number of characters actually
- * accepted for writing.
- *
- * If the port is not already transmitting stuff, start it off by
- * enabling interrupts. The interrupt service routine will then
- * ensure that the characters are sent.
- * If the port is already active, there is no need to kick it.
- *
- */
-static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
- int c, ret = 0;
-
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_write ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_write"))
- return 0;
-
- if (!info->port.xmit_buf)
- return 0;
-
- spin_lock_irqsave(&info->card->card_lock, flags);
- while (1) {
- c = min(count, (int)(SERIAL_XMIT_SIZE - info->xmit_cnt - 1));
- c = min(c, (int)(SERIAL_XMIT_SIZE - info->xmit_head));
-
- if (c <= 0)
- break;
-
- memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
- info->xmit_head = (info->xmit_head + c) &
- (SERIAL_XMIT_SIZE - 1);
- info->xmit_cnt += c;
- buf += c;
- count -= c;
- ret += c;
- }
- spin_unlock_irqrestore(&info->card->card_lock, flags);
-
- info->idle_stats.xmit_bytes += ret;
- info->idle_stats.xmit_idle = jiffies;
-
- if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped)
- start_xmit(info);
-
- return ret;
-} /* cy_write */
-
-/*
- * This routine is called by the kernel to write a single
- * character to the tty device. If the kernel uses this routine,
- * it must call the flush_chars() routine (if defined) when it is
- * done stuffing characters into the driver. If there is no room
- * in the queue, the character is ignored.
- */
-static int cy_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
-
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_put_char ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_put_char"))
- return 0;
-
- if (!info->port.xmit_buf)
- return 0;
-
- spin_lock_irqsave(&info->card->card_lock, flags);
- if (info->xmit_cnt >= (int)(SERIAL_XMIT_SIZE - 1)) {
- spin_unlock_irqrestore(&info->card->card_lock, flags);
- return 0;
- }
-
- info->port.xmit_buf[info->xmit_head++] = ch;
- info->xmit_head &= SERIAL_XMIT_SIZE - 1;
- info->xmit_cnt++;
- info->idle_stats.xmit_bytes++;
- info->idle_stats.xmit_idle = jiffies;
- spin_unlock_irqrestore(&info->card->card_lock, flags);
- return 1;
-} /* cy_put_char */
-
-/*
- * This routine is called by the kernel after it has written a
- * series of characters to the tty device using put_char().
- */
-static void cy_flush_chars(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
-
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_flush_chars ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_flush_chars"))
- return;
-
- if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !info->port.xmit_buf)
- return;
-
- start_xmit(info);
-} /* cy_flush_chars */
-
-/*
- * This routine returns the numbers of characters the tty driver
- * will accept for queuing to be written. This number is subject
- * to change as output buffers get emptied, or if the output flow
- * control is activated.
- */
-static int cy_write_room(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- int ret;
-
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_write_room ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_write_room"))
- return 0;
- ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
- return ret;
-} /* cy_write_room */
-
-static int cy_chars_in_buffer(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
-
- if (serial_paranoia_check(info, tty->name, "cy_chars_in_buffer"))
- return 0;
-
-#ifdef Z_EXT_CHARS_IN_BUFFER
- if (!cy_is_Z(info->card)) {
-#endif /* Z_EXT_CHARS_IN_BUFFER */
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n",
- info->line, info->xmit_cnt);
-#endif
- return info->xmit_cnt;
-#ifdef Z_EXT_CHARS_IN_BUFFER
- } else {
- struct BUF_CTRL __iomem *buf_ctrl = info->u.cyz.buf_ctrl;
- int char_count;
- __u32 tx_put, tx_get, tx_bufsize;
-
- tx_get = readl(&buf_ctrl->tx_get);
- tx_put = readl(&buf_ctrl->tx_put);
- tx_bufsize = readl(&buf_ctrl->tx_bufsize);
- if (tx_put >= tx_get)
- char_count = tx_put - tx_get;
- else
- char_count = tx_put - tx_get + tx_bufsize;
-#ifdef CY_DEBUG_IO
- printk(KERN_DEBUG "cyc:cy_chars_in_buffer ttyC%d %d\n",
- info->line, info->xmit_cnt + char_count);
-#endif
- return info->xmit_cnt + char_count;
- }
-#endif /* Z_EXT_CHARS_IN_BUFFER */
-} /* cy_chars_in_buffer */
-
-/*
- * ------------------------------------------------------------
- * cy_ioctl() and friends
- * ------------------------------------------------------------
- */
-
-static void cyy_baud_calc(struct cyclades_port *info, __u32 baud)
-{
- int co, co_val, bpr;
- __u32 cy_clock = ((info->chip_rev >= CD1400_REV_J) ? 60000000 :
- 25000000);
-
- if (baud == 0) {
- info->tbpr = info->tco = info->rbpr = info->rco = 0;
- return;
- }
-
- /* determine which prescaler to use */
- for (co = 4, co_val = 2048; co; co--, co_val >>= 2) {
- if (cy_clock / co_val / baud > 63)
- break;
- }
-
- bpr = (cy_clock / co_val * 2 / baud + 1) / 2;
- if (bpr > 255)
- bpr = 255;
-
- info->tbpr = info->rbpr = bpr;
- info->tco = info->rco = co;
-}
-
-/*
- * This routine finds or computes the various line characteristics.
- * It used to be called config_setup
- */
-static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty)
-{
- struct cyclades_card *card;
- unsigned long flags;
- int channel;
- unsigned cflag, iflag;
- int baud, baud_rate = 0;
- int i;
-
- if (!tty->termios) /* XXX can this happen at all? */
- return;
-
- if (info->line == -1)
- return;
-
- cflag = tty->termios->c_cflag;
- iflag = tty->termios->c_iflag;
-
- /*
- * Set up the tty->alt_speed kludge
- */
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- tty->alt_speed = 57600;
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- tty->alt_speed = 115200;
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- tty->alt_speed = 230400;
- if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- tty->alt_speed = 460800;
-
- card = info->card;
- channel = info->line - card->first_line;
-
- if (!cy_is_Z(card)) {
- u32 cflags;
-
- /* baud rate */
- baud = tty_get_baud_rate(tty);
- if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
- ASYNC_SPD_CUST) {
- if (info->custom_divisor)
- baud_rate = info->baud / info->custom_divisor;
- else
- baud_rate = info->baud;
- } else if (baud > CD1400_MAX_SPEED) {
- baud = CD1400_MAX_SPEED;
- }
- /* find the baud index */
- for (i = 0; i < 20; i++) {
- if (baud == baud_table[i])
- break;
- }
- if (i == 20)
- i = 19; /* CD1400_MAX_SPEED */
-
- if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
- ASYNC_SPD_CUST) {
- cyy_baud_calc(info, baud_rate);
- } else {
- if (info->chip_rev >= CD1400_REV_J) {
- /* It is a CD1400 rev. J or later */
- info->tbpr = baud_bpr_60[i]; /* Tx BPR */
- info->tco = baud_co_60[i]; /* Tx CO */
- info->rbpr = baud_bpr_60[i]; /* Rx BPR */
- info->rco = baud_co_60[i]; /* Rx CO */
- } else {
- info->tbpr = baud_bpr_25[i]; /* Tx BPR */
- info->tco = baud_co_25[i]; /* Tx CO */
- info->rbpr = baud_bpr_25[i]; /* Rx BPR */
- info->rco = baud_co_25[i]; /* Rx CO */
- }
- }
- if (baud_table[i] == 134) {
- /* get it right for 134.5 baud */
- info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
- 2;
- } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
- ASYNC_SPD_CUST) {
- info->timeout = (info->xmit_fifo_size * HZ * 15 /
- baud_rate) + 2;
- } else if (baud_table[i]) {
- info->timeout = (info->xmit_fifo_size * HZ * 15 /
- baud_table[i]) + 2;
- /* this needs to be propagated into the card info */
- } else {
- info->timeout = 0;
- }
- /* By tradition (is it a standard?) a baud rate of zero
- implies the line should be/has been closed. A bit
- later in this routine such a test is performed. */
-
- /* byte size and parity */
- info->cor5 = 0;
- info->cor4 = 0;
- /* receive threshold */
- info->cor3 = (info->default_threshold ?
- info->default_threshold : baud_cor3[i]);
- info->cor2 = CyETC;
- switch (cflag & CSIZE) {
- case CS5:
- info->cor1 = Cy_5_BITS;
- break;
- case CS6:
- info->cor1 = Cy_6_BITS;
- break;
- case CS7:
- info->cor1 = Cy_7_BITS;
- break;
- case CS8:
- info->cor1 = Cy_8_BITS;
- break;
- }
- if (cflag & CSTOPB)
- info->cor1 |= Cy_2_STOP;
-
- if (cflag & PARENB) {
- if (cflag & PARODD)
- info->cor1 |= CyPARITY_O;
- else
- info->cor1 |= CyPARITY_E;
- } else
- info->cor1 |= CyPARITY_NONE;
-
- /* CTS flow control flag */
- if (cflag & CRTSCTS) {
- info->port.flags |= ASYNC_CTS_FLOW;
- info->cor2 |= CyCtsAE;
- } else {
- info->port.flags &= ~ASYNC_CTS_FLOW;
- info->cor2 &= ~CyCtsAE;
- }
- if (cflag & CLOCAL)
- info->port.flags &= ~ASYNC_CHECK_CD;
- else
- info->port.flags |= ASYNC_CHECK_CD;
-
- /***********************************************
- The hardware option, CyRtsAO, presents RTS when
- the chip has characters to send. Since most modems
- use RTS as reverse (inbound) flow control, this
- option is not used. If inbound flow control is
- necessary, DTR can be programmed to provide the
- appropriate signals for use with a non-standard
- cable. Contact Marcio Saito for details.
- ***********************************************/
-
- channel &= 0x03;
-
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_writeb(info, CyCAR, channel);
-
- /* tx and rx baud rate */
-
- cyy_writeb(info, CyTCOR, info->tco);
- cyy_writeb(info, CyTBPR, info->tbpr);
- cyy_writeb(info, CyRCOR, info->rco);
- cyy_writeb(info, CyRBPR, info->rbpr);
-
- /* set line characteristics according configuration */
-
- cyy_writeb(info, CySCHR1, START_CHAR(tty));
- cyy_writeb(info, CySCHR2, STOP_CHAR(tty));
- cyy_writeb(info, CyCOR1, info->cor1);
- cyy_writeb(info, CyCOR2, info->cor2);
- cyy_writeb(info, CyCOR3, info->cor3);
- cyy_writeb(info, CyCOR4, info->cor4);
- cyy_writeb(info, CyCOR5, info->cor5);
-
- cyy_issue_cmd(info, CyCOR_CHANGE | CyCOR1ch | CyCOR2ch |
- CyCOR3ch);
-
- /* !!! Is this needed? */
- cyy_writeb(info, CyCAR, channel);
- cyy_writeb(info, CyRTPR,
- (info->default_timeout ? info->default_timeout : 0x02));
- /* 10ms rx timeout */
-
- cflags = CyCTS;
- if (!C_CLOCAL(tty))
- cflags |= CyDSR | CyRI | CyDCD;
- /* without modem intr */
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyMdmCh);
- /* act on 1->0 modem transitions */
- if ((cflag & CRTSCTS) && info->rflow)
- cyy_writeb(info, CyMCOR1, cflags | rflow_thr[i]);
- else
- cyy_writeb(info, CyMCOR1, cflags);
- /* act on 0->1 modem transitions */
- cyy_writeb(info, CyMCOR2, cflags);
-
- if (i == 0) /* baud rate is zero, turn off line */
- cyy_change_rts_dtr(info, 0, TIOCM_DTR);
- else
- cyy_change_rts_dtr(info, TIOCM_DTR, 0);
-
- clear_bit(TTY_IO_ERROR, &tty->flags);
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- } else {
- struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
- __u32 sw_flow;
- int retval;
-
- if (!cyz_is_loaded(card))
- return;
-
- /* baud rate */
- baud = tty_get_baud_rate(tty);
- if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
- ASYNC_SPD_CUST) {
- if (info->custom_divisor)
- baud_rate = info->baud / info->custom_divisor;
- else
- baud_rate = info->baud;
- } else if (baud > CYZ_MAX_SPEED) {
- baud = CYZ_MAX_SPEED;
- }
- cy_writel(&ch_ctrl->comm_baud, baud);
-
- if (baud == 134) {
- /* get it right for 134.5 baud */
- info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
- 2;
- } else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
- ASYNC_SPD_CUST) {
- info->timeout = (info->xmit_fifo_size * HZ * 15 /
- baud_rate) + 2;
- } else if (baud) {
- info->timeout = (info->xmit_fifo_size * HZ * 15 /
- baud) + 2;
- /* this needs to be propagated into the card info */
- } else {
- info->timeout = 0;
- }
-
- /* byte size and parity */
- switch (cflag & CSIZE) {
- case CS5:
- cy_writel(&ch_ctrl->comm_data_l, C_DL_CS5);
- break;
- case CS6:
- cy_writel(&ch_ctrl->comm_data_l, C_DL_CS6);
- break;
- case CS7:
- cy_writel(&ch_ctrl->comm_data_l, C_DL_CS7);
- break;
- case CS8:
- cy_writel(&ch_ctrl->comm_data_l, C_DL_CS8);
- break;
- }
- if (cflag & CSTOPB) {
- cy_writel(&ch_ctrl->comm_data_l,
- readl(&ch_ctrl->comm_data_l) | C_DL_2STOP);
- } else {
- cy_writel(&ch_ctrl->comm_data_l,
- readl(&ch_ctrl->comm_data_l) | C_DL_1STOP);
- }
- if (cflag & PARENB) {
- if (cflag & PARODD)
- cy_writel(&ch_ctrl->comm_parity, C_PR_ODD);
- else
- cy_writel(&ch_ctrl->comm_parity, C_PR_EVEN);
- } else
- cy_writel(&ch_ctrl->comm_parity, C_PR_NONE);
-
- /* CTS flow control flag */
- if (cflag & CRTSCTS) {
- cy_writel(&ch_ctrl->hw_flow,
- readl(&ch_ctrl->hw_flow) | C_RS_CTS | C_RS_RTS);
- } else {
- cy_writel(&ch_ctrl->hw_flow, readl(&ch_ctrl->hw_flow) &
- ~(C_RS_CTS | C_RS_RTS));
- }
- /* As the HW flow control is done in firmware, the driver
- doesn't need to care about it */
- info->port.flags &= ~ASYNC_CTS_FLOW;
-
- /* XON/XOFF/XANY flow control flags */
- sw_flow = 0;
- if (iflag & IXON) {
- sw_flow |= C_FL_OXX;
- if (iflag & IXANY)
- sw_flow |= C_FL_OIXANY;
- }
- cy_writel(&ch_ctrl->sw_flow, sw_flow);
-
- retval = cyz_issue_cmd(card, channel, C_CM_IOCTL, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:set_line_char retval on ttyC%d "
- "was %x\n", info->line, retval);
- }
-
- /* CD sensitivity */
- if (cflag & CLOCAL)
- info->port.flags &= ~ASYNC_CHECK_CD;
- else
- info->port.flags |= ASYNC_CHECK_CD;
-
- if (baud == 0) { /* baud rate is zero, turn off line */
- cy_writel(&ch_ctrl->rs_control,
- readl(&ch_ctrl->rs_control) & ~C_RS_DTR);
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "cyc:set_line_char dropping Z DTR\n");
-#endif
- } else {
- cy_writel(&ch_ctrl->rs_control,
- readl(&ch_ctrl->rs_control) | C_RS_DTR);
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "cyc:set_line_char raising Z DTR\n");
-#endif
- }
-
- retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:set_line_char(2) retval on ttyC%d "
- "was %x\n", info->line, retval);
- }
-
- clear_bit(TTY_IO_ERROR, &tty->flags);
- }
-} /* set_line_char */
-
-static int cy_get_serial_info(struct cyclades_port *info,
- struct serial_struct __user *retinfo)
-{
- struct cyclades_card *cinfo = info->card;
- struct serial_struct tmp = {
- .type = info->type,
- .line = info->line,
- .port = (info->card - cy_card) * 0x100 + info->line -
- cinfo->first_line,
- .irq = cinfo->irq,
- .flags = info->port.flags,
- .close_delay = info->port.close_delay,
- .closing_wait = info->port.closing_wait,
- .baud_base = info->baud,
- .custom_divisor = info->custom_divisor,
- .hub6 = 0, /*!!! */
- };
- return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
-}
-
-static int
-cy_set_serial_info(struct cyclades_port *info, struct tty_struct *tty,
- struct serial_struct __user *new_info)
-{
- struct serial_struct new_serial;
- int ret;
-
- if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
- return -EFAULT;
-
- mutex_lock(&info->port.mutex);
- if (!capable(CAP_SYS_ADMIN)) {
- if (new_serial.close_delay != info->port.close_delay ||
- new_serial.baud_base != info->baud ||
- (new_serial.flags & ASYNC_FLAGS &
- ~ASYNC_USR_MASK) !=
- (info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
- {
- mutex_unlock(&info->port.mutex);
- return -EPERM;
- }
- info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) |
- (new_serial.flags & ASYNC_USR_MASK);
- info->baud = new_serial.baud_base;
- info->custom_divisor = new_serial.custom_divisor;
- goto check_and_exit;
- }
-
- /*
- * OK, past this point, all the error checking has been done.
- * At this point, we start making changes.....
- */
-
- info->baud = new_serial.baud_base;
- info->custom_divisor = new_serial.custom_divisor;
- info->port.flags = (info->port.flags & ~ASYNC_FLAGS) |
- (new_serial.flags & ASYNC_FLAGS);
- info->port.close_delay = new_serial.close_delay * HZ / 100;
- info->port.closing_wait = new_serial.closing_wait * HZ / 100;
-
-check_and_exit:
- if (info->port.flags & ASYNC_INITIALIZED) {
- cy_set_line_char(info, tty);
- ret = 0;
- } else {
- ret = cy_startup(info, tty);
- }
- mutex_unlock(&info->port.mutex);
- return ret;
-} /* set_serial_info */
-
-/*
- * get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- * is emptied. On bus types like RS485, the transmitter must
- * release the bus after transmitting. This must be done when
- * the transmit shift register is empty, not be done when the
- * transmit holding register is empty. This functionality
- * allows an RS485 driver to be written in user space.
- */
-static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value)
-{
- struct cyclades_card *card = info->card;
- unsigned int result;
- unsigned long flags;
- u8 status;
-
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
- status = cyy_readb(info, CySRER) & (CyTxRdy | CyTxMpty);
- spin_unlock_irqrestore(&card->card_lock, flags);
- result = (status ? 0 : TIOCSER_TEMT);
- } else {
- /* Not supported yet */
- return -EINVAL;
- }
- return put_user(result, (unsigned long __user *)value);
-}
-
-static int cy_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- int result;
-
- if (serial_paranoia_check(info, tty->name, __func__))
- return -ENODEV;
-
- card = info->card;
-
- if (!cy_is_Z(card)) {
- unsigned long flags;
- int channel = info->line - card->first_line;
- u8 status;
-
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_writeb(info, CyCAR, channel & 0x03);
- status = cyy_readb(info, CyMSVR1);
- status |= cyy_readb(info, CyMSVR2);
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- if (info->rtsdtr_inv) {
- result = ((status & CyRTS) ? TIOCM_DTR : 0) |
- ((status & CyDTR) ? TIOCM_RTS : 0);
- } else {
- result = ((status & CyRTS) ? TIOCM_RTS : 0) |
- ((status & CyDTR) ? TIOCM_DTR : 0);
- }
- result |= ((status & CyDCD) ? TIOCM_CAR : 0) |
- ((status & CyRI) ? TIOCM_RNG : 0) |
- ((status & CyDSR) ? TIOCM_DSR : 0) |
- ((status & CyCTS) ? TIOCM_CTS : 0);
- } else {
- u32 lstatus;
-
- if (!cyz_is_loaded(card)) {
- result = -ENODEV;
- goto end;
- }
-
- lstatus = readl(&info->u.cyz.ch_ctrl->rs_status);
- result = ((lstatus & C_RS_RTS) ? TIOCM_RTS : 0) |
- ((lstatus & C_RS_DTR) ? TIOCM_DTR : 0) |
- ((lstatus & C_RS_DCD) ? TIOCM_CAR : 0) |
- ((lstatus & C_RS_RI) ? TIOCM_RNG : 0) |
- ((lstatus & C_RS_DSR) ? TIOCM_DSR : 0) |
- ((lstatus & C_RS_CTS) ? TIOCM_CTS : 0);
- }
-end:
- return result;
-} /* cy_tiomget */
-
-static int
-cy_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- unsigned long flags;
-
- if (serial_paranoia_check(info, tty->name, __func__))
- return -ENODEV;
-
- card = info->card;
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_change_rts_dtr(info, set, clear);
- spin_unlock_irqrestore(&card->card_lock, flags);
- } else {
- struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
- int retval, channel = info->line - card->first_line;
- u32 rs;
-
- if (!cyz_is_loaded(card))
- return -ENODEV;
-
- spin_lock_irqsave(&card->card_lock, flags);
- rs = readl(&ch_ctrl->rs_control);
- if (set & TIOCM_RTS)
- rs |= C_RS_RTS;
- if (clear & TIOCM_RTS)
- rs &= ~C_RS_RTS;
- if (set & TIOCM_DTR) {
- rs |= C_RS_DTR;
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "cyc:set_modem_info raising Z DTR\n");
-#endif
- }
- if (clear & TIOCM_DTR) {
- rs &= ~C_RS_DTR;
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "cyc:set_modem_info clearing "
- "Z DTR\n");
-#endif
- }
- cy_writel(&ch_ctrl->rs_control, rs);
- retval = cyz_issue_cmd(card, channel, C_CM_IOCTLM, 0L);
- spin_unlock_irqrestore(&card->card_lock, flags);
- if (retval != 0) {
- printk(KERN_ERR "cyc:set_modem_info retval on ttyC%d "
- "was %x\n", info->line, retval);
- }
- }
- return 0;
-}
-
-/*
- * cy_break() --- routine which turns the break handling on or off
- */
-static int cy_break(struct tty_struct *tty, int break_state)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- unsigned long flags;
- int retval = 0;
-
- if (serial_paranoia_check(info, tty->name, "cy_break"))
- return -EINVAL;
-
- card = info->card;
-
- spin_lock_irqsave(&card->card_lock, flags);
- if (!cy_is_Z(card)) {
- /* Let the transmit ISR take care of this (since it
- requires stuffing characters into the output stream).
- */
- if (break_state == -1) {
- if (!info->breakon) {
- info->breakon = 1;
- if (!info->xmit_cnt) {
- spin_unlock_irqrestore(&card->card_lock, flags);
- start_xmit(info);
- spin_lock_irqsave(&card->card_lock, flags);
- }
- }
- } else {
- if (!info->breakoff) {
- info->breakoff = 1;
- if (!info->xmit_cnt) {
- spin_unlock_irqrestore(&card->card_lock, flags);
- start_xmit(info);
- spin_lock_irqsave(&card->card_lock, flags);
- }
- }
- }
- } else {
- if (break_state == -1) {
- retval = cyz_issue_cmd(card,
- info->line - card->first_line,
- C_CM_SET_BREAK, 0L);
- if (retval != 0) {
- printk(KERN_ERR "cyc:cy_break (set) retval on "
- "ttyC%d was %x\n", info->line, retval);
- }
- } else {
- retval = cyz_issue_cmd(card,
- info->line - card->first_line,
- C_CM_CLR_BREAK, 0L);
- if (retval != 0) {
- printk(KERN_DEBUG "cyc:cy_break (clr) retval "
- "on ttyC%d was %x\n", info->line,
- retval);
- }
- }
- }
- spin_unlock_irqrestore(&card->card_lock, flags);
- return retval;
-} /* cy_break */
-
-static int set_threshold(struct cyclades_port *info, unsigned long value)
-{
- struct cyclades_card *card = info->card;
- unsigned long flags;
-
- if (!cy_is_Z(card)) {
- info->cor3 &= ~CyREC_FIFO;
- info->cor3 |= value & CyREC_FIFO;
-
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_writeb(info, CyCOR3, info->cor3);
- cyy_issue_cmd(info, CyCOR_CHANGE | CyCOR3ch);
- spin_unlock_irqrestore(&card->card_lock, flags);
- }
- return 0;
-} /* set_threshold */
-
-static int get_threshold(struct cyclades_port *info,
- unsigned long __user *value)
-{
- struct cyclades_card *card = info->card;
-
- if (!cy_is_Z(card)) {
- u8 tmp = cyy_readb(info, CyCOR3) & CyREC_FIFO;
- return put_user(tmp, value);
- }
- return 0;
-} /* get_threshold */
-
-static int set_timeout(struct cyclades_port *info, unsigned long value)
-{
- struct cyclades_card *card = info->card;
- unsigned long flags;
-
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_writeb(info, CyRTPR, value & 0xff);
- spin_unlock_irqrestore(&card->card_lock, flags);
- }
- return 0;
-} /* set_timeout */
-
-static int get_timeout(struct cyclades_port *info,
- unsigned long __user *value)
-{
- struct cyclades_card *card = info->card;
-
- if (!cy_is_Z(card)) {
- u8 tmp = cyy_readb(info, CyRTPR);
- return put_user(tmp, value);
- }
- return 0;
-} /* get_timeout */
-
-static int cy_cflags_changed(struct cyclades_port *info, unsigned long arg,
- struct cyclades_icount *cprev)
-{
- struct cyclades_icount cnow;
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&info->card->card_lock, flags);
- cnow = info->icount; /* atomic copy */
- spin_unlock_irqrestore(&info->card->card_lock, flags);
-
- ret = ((arg & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
- ((arg & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) ||
- ((arg & TIOCM_CD) && (cnow.dcd != cprev->dcd)) ||
- ((arg & TIOCM_CTS) && (cnow.cts != cprev->cts));
-
- *cprev = cnow;
-
- return ret;
-}
-
-/*
- * This routine allows the tty driver to implement device-
- * specific ioctl's. If the ioctl number passed in cmd is
- * not recognized by the driver, it should return ENOIOCTLCMD.
- */
-static int
-cy_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_icount cnow; /* kernel counter temps */
- int ret_val = 0;
- unsigned long flags;
- void __user *argp = (void __user *)arg;
-
- if (serial_paranoia_check(info, tty->name, "cy_ioctl"))
- return -ENODEV;
-
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_ioctl ttyC%d, cmd = %x arg = %lx\n",
- info->line, cmd, arg);
-#endif
-
- switch (cmd) {
- case CYGETMON:
- if (copy_to_user(argp, &info->mon, sizeof(info->mon))) {
- ret_val = -EFAULT;
- break;
- }
- memset(&info->mon, 0, sizeof(info->mon));
- break;
- case CYGETTHRESH:
- ret_val = get_threshold(info, argp);
- break;
- case CYSETTHRESH:
- ret_val = set_threshold(info, arg);
- break;
- case CYGETDEFTHRESH:
- ret_val = put_user(info->default_threshold,
- (unsigned long __user *)argp);
- break;
- case CYSETDEFTHRESH:
- info->default_threshold = arg & 0x0f;
- break;
- case CYGETTIMEOUT:
- ret_val = get_timeout(info, argp);
- break;
- case CYSETTIMEOUT:
- ret_val = set_timeout(info, arg);
- break;
- case CYGETDEFTIMEOUT:
- ret_val = put_user(info->default_timeout,
- (unsigned long __user *)argp);
- break;
- case CYSETDEFTIMEOUT:
- info->default_timeout = arg & 0xff;
- break;
- case CYSETRFLOW:
- info->rflow = (int)arg;
- break;
- case CYGETRFLOW:
- ret_val = info->rflow;
- break;
- case CYSETRTSDTR_INV:
- info->rtsdtr_inv = (int)arg;
- break;
- case CYGETRTSDTR_INV:
- ret_val = info->rtsdtr_inv;
- break;
- case CYGETCD1400VER:
- ret_val = info->chip_rev;
- break;
-#ifndef CONFIG_CYZ_INTR
- case CYZSETPOLLCYCLE:
- cyz_polling_cycle = (arg * HZ) / 1000;
- break;
- case CYZGETPOLLCYCLE:
- ret_val = (cyz_polling_cycle * 1000) / HZ;
- break;
-#endif /* CONFIG_CYZ_INTR */
- case CYSETWAIT:
- info->port.closing_wait = (unsigned short)arg * HZ / 100;
- break;
- case CYGETWAIT:
- ret_val = info->port.closing_wait / (HZ / 100);
- break;
- case TIOCGSERIAL:
- ret_val = cy_get_serial_info(info, argp);
- break;
- case TIOCSSERIAL:
- ret_val = cy_set_serial_info(info, tty, argp);
- break;
- case TIOCSERGETLSR: /* Get line status register */
- ret_val = get_lsr_info(info, argp);
- break;
- /*
- * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
- * - mask passed in arg for lines of interest
- * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
- * Caller should use TIOCGICOUNT to see which one it was
- */
- case TIOCMIWAIT:
- spin_lock_irqsave(&info->card->card_lock, flags);
- /* note the counters on entry */
- cnow = info->icount;
- spin_unlock_irqrestore(&info->card->card_lock, flags);
- ret_val = wait_event_interruptible(info->port.delta_msr_wait,
- cy_cflags_changed(info, arg, &cnow));
- break;
-
- /*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- * RI where only 0->1 is counted.
- */
- default:
- ret_val = -ENOIOCTLCMD;
- }
-
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_ioctl done\n");
-#endif
- return ret_val;
-} /* cy_ioctl */
-
-static int cy_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *sic)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_icount cnow; /* Used to snapshot */
- unsigned long flags;
-
- spin_lock_irqsave(&info->card->card_lock, flags);
- cnow = info->icount;
- spin_unlock_irqrestore(&info->card->card_lock, flags);
-
- sic->cts = cnow.cts;
- sic->dsr = cnow.dsr;
- sic->rng = cnow.rng;
- sic->dcd = cnow.dcd;
- sic->rx = cnow.rx;
- sic->tx = cnow.tx;
- sic->frame = cnow.frame;
- sic->overrun = cnow.overrun;
- sic->parity = cnow.parity;
- sic->brk = cnow.brk;
- sic->buf_overrun = cnow.buf_overrun;
- return 0;
-}
-
-/*
- * This routine allows the tty driver to be notified when
- * device's termios settings have changed. Note that a
- * well-designed tty driver should be prepared to accept the case
- * where old == NULL, and try to do something rational.
- */
-static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct cyclades_port *info = tty->driver_data;
-
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_set_termios ttyC%d\n", info->line);
-#endif
-
- cy_set_line_char(info, tty);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- cy_start(tty);
- }
-#if 0
- /*
- * No need to wake up processes in open wait, since they
- * sample the CLOCAL flag once, and don't recheck it.
- * XXX It's not clear whether the current behavior is correct
- * or not. Hence, this may change.....
- */
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->port.open_wait);
-#endif
-} /* cy_set_termios */
-
-/* This function is used to send a high-priority XON/XOFF character to
- the device.
-*/
-static void cy_send_xchar(struct tty_struct *tty, char ch)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- int channel;
-
- if (serial_paranoia_check(info, tty->name, "cy_send_xchar"))
- return;
-
- info->x_char = ch;
-
- if (ch)
- cy_start(tty);
-
- card = info->card;
- channel = info->line - card->first_line;
-
- if (cy_is_Z(card)) {
- if (ch == STOP_CHAR(tty))
- cyz_issue_cmd(card, channel, C_CM_SENDXOFF, 0L);
- else if (ch == START_CHAR(tty))
- cyz_issue_cmd(card, channel, C_CM_SENDXON, 0L);
- }
-}
-
-/* This routine is called by the upper-layer tty layer to signal
- that incoming characters should be throttled because the input
- buffers are close to full.
- */
-static void cy_throttle(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- unsigned long flags;
-
-#ifdef CY_DEBUG_THROTTLE
- char buf[64];
-
- printk(KERN_DEBUG "cyc:throttle %s: %ld...ttyC%d\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty), info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_throttle"))
- return;
-
- card = info->card;
-
- if (I_IXOFF(tty)) {
- if (!cy_is_Z(card))
- cy_send_xchar(tty, STOP_CHAR(tty));
- else
- info->throttle = 1;
- }
-
- if (tty->termios->c_cflag & CRTSCTS) {
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_change_rts_dtr(info, 0, TIOCM_RTS);
- spin_unlock_irqrestore(&card->card_lock, flags);
- } else {
- info->throttle = 1;
- }
- }
-} /* cy_throttle */
-
-/*
- * This routine notifies the tty driver that it should signal
- * that characters can now be sent to the tty without fear of
- * overrunning the input buffers of the line disciplines.
- */
-static void cy_unthrottle(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- struct cyclades_card *card;
- unsigned long flags;
-
-#ifdef CY_DEBUG_THROTTLE
- char buf[64];
-
- printk(KERN_DEBUG "cyc:unthrottle %s: %ld...ttyC%d\n",
- tty_name(tty, buf), tty_chars_in_buffer(tty), info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_unthrottle"))
- return;
-
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else
- cy_send_xchar(tty, START_CHAR(tty));
- }
-
- if (tty->termios->c_cflag & CRTSCTS) {
- card = info->card;
- if (!cy_is_Z(card)) {
- spin_lock_irqsave(&card->card_lock, flags);
- cyy_change_rts_dtr(info, TIOCM_RTS, 0);
- spin_unlock_irqrestore(&card->card_lock, flags);
- } else {
- info->throttle = 0;
- }
- }
-} /* cy_unthrottle */
-
-/* cy_start and cy_stop provide software output flow control as a
- function of XON/XOFF, software CTS, and other such stuff.
-*/
-static void cy_stop(struct tty_struct *tty)
-{
- struct cyclades_card *cinfo;
- struct cyclades_port *info = tty->driver_data;
- int channel;
- unsigned long flags;
-
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_stop ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_stop"))
- return;
-
- cinfo = info->card;
- channel = info->line - cinfo->first_line;
- if (!cy_is_Z(cinfo)) {
- spin_lock_irqsave(&cinfo->card_lock, flags);
- cyy_writeb(info, CyCAR, channel & 0x03);
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) & ~CyTxRdy);
- spin_unlock_irqrestore(&cinfo->card_lock, flags);
- }
-} /* cy_stop */
-
-static void cy_start(struct tty_struct *tty)
-{
- struct cyclades_card *cinfo;
- struct cyclades_port *info = tty->driver_data;
- int channel;
- unsigned long flags;
-
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_start ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_start"))
- return;
-
- cinfo = info->card;
- channel = info->line - cinfo->first_line;
- if (!cy_is_Z(cinfo)) {
- spin_lock_irqsave(&cinfo->card_lock, flags);
- cyy_writeb(info, CyCAR, channel & 0x03);
- cyy_writeb(info, CySRER, cyy_readb(info, CySRER) | CyTxRdy);
- spin_unlock_irqrestore(&cinfo->card_lock, flags);
- }
-} /* cy_start */
-
-/*
- * cy_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-static void cy_hangup(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
-
-#ifdef CY_DEBUG_OTHER
- printk(KERN_DEBUG "cyc:cy_hangup ttyC%d\n", info->line);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_hangup"))
- return;
-
- cy_flush_buffer(tty);
- cy_shutdown(info, tty);
- tty_port_hangup(&info->port);
-} /* cy_hangup */
-
-static int cyy_carrier_raised(struct tty_port *port)
-{
- struct cyclades_port *info = container_of(port, struct cyclades_port,
- port);
- struct cyclades_card *cinfo = info->card;
- unsigned long flags;
- int channel = info->line - cinfo->first_line;
- u32 cd;
-
- spin_lock_irqsave(&cinfo->card_lock, flags);
- cyy_writeb(info, CyCAR, channel & 0x03);
- cd = cyy_readb(info, CyMSVR1) & CyDCD;
- spin_unlock_irqrestore(&cinfo->card_lock, flags);
-
- return cd;
-}
-
-static void cyy_dtr_rts(struct tty_port *port, int raise)
-{
- struct cyclades_port *info = container_of(port, struct cyclades_port,
- port);
- struct cyclades_card *cinfo = info->card;
- unsigned long flags;
-
- spin_lock_irqsave(&cinfo->card_lock, flags);
- cyy_change_rts_dtr(info, raise ? TIOCM_RTS | TIOCM_DTR : 0,
- raise ? 0 : TIOCM_RTS | TIOCM_DTR);
- spin_unlock_irqrestore(&cinfo->card_lock, flags);
-}
-
-static int cyz_carrier_raised(struct tty_port *port)
-{
- struct cyclades_port *info = container_of(port, struct cyclades_port,
- port);
-
- return readl(&info->u.cyz.ch_ctrl->rs_status) & C_RS_DCD;
-}
-
-static void cyz_dtr_rts(struct tty_port *port, int raise)
-{
- struct cyclades_port *info = container_of(port, struct cyclades_port,
- port);
- struct cyclades_card *cinfo = info->card;
- struct CH_CTRL __iomem *ch_ctrl = info->u.cyz.ch_ctrl;
- int ret, channel = info->line - cinfo->first_line;
- u32 rs;
-
- rs = readl(&ch_ctrl->rs_control);
- if (raise)
- rs |= C_RS_RTS | C_RS_DTR;
- else
- rs &= ~(C_RS_RTS | C_RS_DTR);
- cy_writel(&ch_ctrl->rs_control, rs);
- ret = cyz_issue_cmd(cinfo, channel, C_CM_IOCTLM, 0L);
- if (ret != 0)
- printk(KERN_ERR "%s: retval on ttyC%d was %x\n",
- __func__, info->line, ret);
-#ifdef CY_DEBUG_DTR
- printk(KERN_DEBUG "%s: raising Z DTR\n", __func__);
-#endif
-}
-
-static const struct tty_port_operations cyy_port_ops = {
- .carrier_raised = cyy_carrier_raised,
- .dtr_rts = cyy_dtr_rts,
- .shutdown = cy_do_close,
-};
-
-static const struct tty_port_operations cyz_port_ops = {
- .carrier_raised = cyz_carrier_raised,
- .dtr_rts = cyz_dtr_rts,
- .shutdown = cy_do_close,
-};
-
-/*
- * ---------------------------------------------------------------------
- * cy_init() and friends
- *
- * cy_init() is called at boot-time to initialize the serial driver.
- * ---------------------------------------------------------------------
- */
-
-static int __devinit cy_init_card(struct cyclades_card *cinfo)
-{
- struct cyclades_port *info;
- unsigned int channel, port;
-
- spin_lock_init(&cinfo->card_lock);
- cinfo->intr_enabled = 0;
-
- cinfo->ports = kcalloc(cinfo->nports, sizeof(*cinfo->ports),
- GFP_KERNEL);
- if (cinfo->ports == NULL) {
- printk(KERN_ERR "Cyclades: cannot allocate ports\n");
- return -ENOMEM;
- }
-
- for (channel = 0, port = cinfo->first_line; channel < cinfo->nports;
- channel++, port++) {
- info = &cinfo->ports[channel];
- tty_port_init(&info->port);
- info->magic = CYCLADES_MAGIC;
- info->card = cinfo;
- info->line = port;
-
- info->port.closing_wait = CLOSING_WAIT_DELAY;
- info->port.close_delay = 5 * HZ / 10;
- info->port.flags = STD_COM_FLAGS;
- init_completion(&info->shutdown_wait);
-
- if (cy_is_Z(cinfo)) {
- struct FIRM_ID *firm_id = cinfo->base_addr + ID_ADDRESS;
- struct ZFW_CTRL *zfw_ctrl;
-
- info->port.ops = &cyz_port_ops;
- info->type = PORT_STARTECH;
-
- zfw_ctrl = cinfo->base_addr +
- (readl(&firm_id->zfwctrl_addr) & 0xfffff);
- info->u.cyz.ch_ctrl = &zfw_ctrl->ch_ctrl[channel];
- info->u.cyz.buf_ctrl = &zfw_ctrl->buf_ctrl[channel];
-
- if (cinfo->hw_ver == ZO_V1)
- info->xmit_fifo_size = CYZ_FIFO_SIZE;
- else
- info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
-#ifdef CONFIG_CYZ_INTR
- setup_timer(&cyz_rx_full_timer[port],
- cyz_rx_restart, (unsigned long)info);
-#endif
- } else {
- unsigned short chip_number;
- int index = cinfo->bus_index;
-
- info->port.ops = &cyy_port_ops;
- info->type = PORT_CIRRUS;
- info->xmit_fifo_size = CyMAX_CHAR_FIFO;
- info->cor1 = CyPARITY_NONE | Cy_1_STOP | Cy_8_BITS;
- info->cor2 = CyETC;
- info->cor3 = 0x08; /* _very_ small rcv threshold */
-
- chip_number = channel / CyPORTS_PER_CHIP;
- info->u.cyy.base_addr = cinfo->base_addr +
- (cy_chip_offset[chip_number] << index);
- info->chip_rev = cyy_readb(info, CyGFRCR);
-
- if (info->chip_rev >= CD1400_REV_J) {
- /* It is a CD1400 rev. J or later */
- info->tbpr = baud_bpr_60[13]; /* Tx BPR */
- info->tco = baud_co_60[13]; /* Tx CO */
- info->rbpr = baud_bpr_60[13]; /* Rx BPR */
- info->rco = baud_co_60[13]; /* Rx CO */
- info->rtsdtr_inv = 1;
- } else {
- info->tbpr = baud_bpr_25[13]; /* Tx BPR */
- info->tco = baud_co_25[13]; /* Tx CO */
- info->rbpr = baud_bpr_25[13]; /* Rx BPR */
- info->rco = baud_co_25[13]; /* Rx CO */
- info->rtsdtr_inv = 0;
- }
- info->read_status_mask = CyTIMEOUT | CySPECHAR |
- CyBREAK | CyPARITY | CyFRAME | CyOVERRUN;
- }
-
- }
-
-#ifndef CONFIG_CYZ_INTR
- if (cy_is_Z(cinfo) && !timer_pending(&cyz_timerlist)) {
- mod_timer(&cyz_timerlist, jiffies + 1);
-#ifdef CY_PCI_DEBUG
- printk(KERN_DEBUG "Cyclades-Z polling initialized\n");
-#endif
- }
-#endif
- return 0;
-}
-
-/* initialize chips on Cyclom-Y card -- return number of valid
- chips (which is number of ports/4) */
-static unsigned short __devinit cyy_init_card(void __iomem *true_base_addr,
- int index)
-{
- unsigned int chip_number;
- void __iomem *base_addr;
-
- cy_writeb(true_base_addr + (Cy_HwReset << index), 0);
- /* Cy_HwReset is 0x1400 */
- cy_writeb(true_base_addr + (Cy_ClrIntr << index), 0);
- /* Cy_ClrIntr is 0x1800 */
- udelay(500L);
-
- for (chip_number = 0; chip_number < CyMAX_CHIPS_PER_CARD;
- chip_number++) {
- base_addr =
- true_base_addr + (cy_chip_offset[chip_number] << index);
- mdelay(1);
- if (readb(base_addr + (CyCCR << index)) != 0x00) {
- /*************
- printk(" chip #%d at %#6lx is never idle (CCR != 0)\n",
- chip_number, (unsigned long)base_addr);
- *************/
- return chip_number;
- }
-
- cy_writeb(base_addr + (CyGFRCR << index), 0);
- udelay(10L);
-
- /* The Cyclom-16Y does not decode address bit 9 and therefore
- cannot distinguish between references to chip 0 and a non-
- existent chip 4. If the preceding clearing of the supposed
- chip 4 GFRCR register appears at chip 0, there is no chip 4
- and this must be a Cyclom-16Y, not a Cyclom-32Ye.
- */
- if (chip_number == 4 && readb(true_base_addr +
- (cy_chip_offset[0] << index) +
- (CyGFRCR << index)) == 0) {
- return chip_number;
- }
-
- cy_writeb(base_addr + (CyCCR << index), CyCHIP_RESET);
- mdelay(1);
-
- if (readb(base_addr + (CyGFRCR << index)) == 0x00) {
- /*
- printk(" chip #%d at %#6lx is not responding ",
- chip_number, (unsigned long)base_addr);
- printk("(GFRCR stayed 0)\n",
- */
- return chip_number;
- }
- if ((0xf0 & (readb(base_addr + (CyGFRCR << index)))) !=
- 0x40) {
- /*
- printk(" chip #%d at %#6lx is not valid (GFRCR == "
- "%#2x)\n",
- chip_number, (unsigned long)base_addr,
- base_addr[CyGFRCR<<index]);
- */
- return chip_number;
- }
- cy_writeb(base_addr + (CyGCR << index), CyCH0_SERIAL);
- if (readb(base_addr + (CyGFRCR << index)) >= CD1400_REV_J) {
- /* It is a CD1400 rev. J or later */
- /* Impossible to reach 5ms with this chip.
- Changed to 2ms instead (f = 500 Hz). */
- cy_writeb(base_addr + (CyPPR << index), CyCLOCK_60_2MS);
- } else {
- /* f = 200 Hz */
- cy_writeb(base_addr + (CyPPR << index), CyCLOCK_25_5MS);
- }
-
- /*
- printk(" chip #%d at %#6lx is rev 0x%2x\n",
- chip_number, (unsigned long)base_addr,
- readb(base_addr+(CyGFRCR<<index)));
- */
- }
- return chip_number;
-} /* cyy_init_card */
-
-/*
- * ---------------------------------------------------------------------
- * cy_detect_isa() - Probe for Cyclom-Y/ISA boards.
- * sets global variables and return the number of ISA boards found.
- * ---------------------------------------------------------------------
- */
-static int __init cy_detect_isa(void)
-{
-#ifdef CONFIG_ISA
- unsigned short cy_isa_irq, nboard;
- void __iomem *cy_isa_address;
- unsigned short i, j, cy_isa_nchan;
- int isparam = 0;
-
- nboard = 0;
-
- /* Check for module parameters */
- for (i = 0; i < NR_CARDS; i++) {
- if (maddr[i] || i) {
- isparam = 1;
- cy_isa_addresses[i] = maddr[i];
- }
- if (!maddr[i])
- break;
- }
-
- /* scan the address table probing for Cyclom-Y/ISA boards */
- for (i = 0; i < NR_ISA_ADDRS; i++) {
- unsigned int isa_address = cy_isa_addresses[i];
- if (isa_address == 0x0000)
- return nboard;
-
- /* probe for CD1400... */
- cy_isa_address = ioremap_nocache(isa_address, CyISA_Ywin);
- if (cy_isa_address == NULL) {
- printk(KERN_ERR "Cyclom-Y/ISA: can't remap base "
- "address\n");
- continue;
- }
- cy_isa_nchan = CyPORTS_PER_CHIP *
- cyy_init_card(cy_isa_address, 0);
- if (cy_isa_nchan == 0) {
- iounmap(cy_isa_address);
- continue;
- }
-
- if (isparam && i < NR_CARDS && irq[i])
- cy_isa_irq = irq[i];
- else
- /* find out the board's irq by probing */
- cy_isa_irq = detect_isa_irq(cy_isa_address);
- if (cy_isa_irq == 0) {
- printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but the "
- "IRQ could not be detected.\n",
- (unsigned long)cy_isa_address);
- iounmap(cy_isa_address);
- continue;
- }
-
- if ((cy_next_channel + cy_isa_nchan) > NR_PORTS) {
- printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but no "
- "more channels are available. Change NR_PORTS "
- "in cyclades.c and recompile kernel.\n",
- (unsigned long)cy_isa_address);
- iounmap(cy_isa_address);
- return nboard;
- }
- /* fill the next cy_card structure available */
- for (j = 0; j < NR_CARDS; j++) {
- if (cy_card[j].base_addr == NULL)
- break;
- }
- if (j == NR_CARDS) { /* no more cy_cards available */
- printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but no "
- "more cards can be used. Change NR_CARDS in "
- "cyclades.c and recompile kernel.\n",
- (unsigned long)cy_isa_address);
- iounmap(cy_isa_address);
- return nboard;
- }
-
- /* allocate IRQ */
- if (request_irq(cy_isa_irq, cyy_interrupt,
- IRQF_DISABLED, "Cyclom-Y", &cy_card[j])) {
- printk(KERN_ERR "Cyclom-Y/ISA found at 0x%lx, but "
- "could not allocate IRQ#%d.\n",
- (unsigned long)cy_isa_address, cy_isa_irq);
- iounmap(cy_isa_address);
- return nboard;
- }
-
- /* set cy_card */
- cy_card[j].base_addr = cy_isa_address;
- cy_card[j].ctl_addr.p9050 = NULL;
- cy_card[j].irq = (int)cy_isa_irq;
- cy_card[j].bus_index = 0;
- cy_card[j].first_line = cy_next_channel;
- cy_card[j].num_chips = cy_isa_nchan / CyPORTS_PER_CHIP;
- cy_card[j].nports = cy_isa_nchan;
- if (cy_init_card(&cy_card[j])) {
- cy_card[j].base_addr = NULL;
- free_irq(cy_isa_irq, &cy_card[j]);
- iounmap(cy_isa_address);
- continue;
- }
- nboard++;
-
- printk(KERN_INFO "Cyclom-Y/ISA #%d: 0x%lx-0x%lx, IRQ%d found: "
- "%d channels starting from port %d\n",
- j + 1, (unsigned long)cy_isa_address,
- (unsigned long)(cy_isa_address + (CyISA_Ywin - 1)),
- cy_isa_irq, cy_isa_nchan, cy_next_channel);
-
- for (j = cy_next_channel;
- j < cy_next_channel + cy_isa_nchan; j++)
- tty_register_device(cy_serial_driver, j, NULL);
- cy_next_channel += cy_isa_nchan;
- }
- return nboard;
-#else
- return 0;
-#endif /* CONFIG_ISA */
-} /* cy_detect_isa */
-
-#ifdef CONFIG_PCI
-static inline int __devinit cyc_isfwstr(const char *str, unsigned int size)
-{
- unsigned int a;
-
- for (a = 0; a < size && *str; a++, str++)
- if (*str & 0x80)
- return -EINVAL;
-
- for (; a < size; a++, str++)
- if (*str)
- return -EINVAL;
-
- return 0;
-}
-
-static inline void __devinit cyz_fpga_copy(void __iomem *fpga, const u8 *data,
- unsigned int size)
-{
- for (; size > 0; size--) {
- cy_writel(fpga, *data++);
- udelay(10);
- }
-}
-
-static void __devinit plx_init(struct pci_dev *pdev, int irq,
- struct RUNTIME_9060 __iomem *addr)
-{
- /* Reset PLX */
- cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) | 0x40000000);
- udelay(100L);
- cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) & ~0x40000000);
-
- /* Reload Config. Registers from EEPROM */
- cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) | 0x20000000);
- udelay(100L);
- cy_writel(&addr->init_ctrl, readl(&addr->init_ctrl) & ~0x20000000);
-
- /* For some yet unknown reason, once the PLX9060 reloads the EEPROM,
- * the IRQ is lost and, thus, we have to re-write it to the PCI config.
- * registers. This will remain here until we find a permanent fix.
- */
- pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, irq);
-}
-
-static int __devinit __cyz_load_fw(const struct firmware *fw,
- const char *name, const u32 mailbox, void __iomem *base,
- void __iomem *fpga)
-{
- const void *ptr = fw->data;
- const struct zfile_header *h = ptr;
- const struct zfile_config *c, *cs;
- const struct zfile_block *b, *bs;
- unsigned int a, tmp, len = fw->size;
-#define BAD_FW KERN_ERR "Bad firmware: "
- if (len < sizeof(*h)) {
- printk(BAD_FW "too short: %u<%zu\n", len, sizeof(*h));
- return -EINVAL;
- }
-
- cs = ptr + h->config_offset;
- bs = ptr + h->block_offset;
-
- if ((void *)(cs + h->n_config) > ptr + len ||
- (void *)(bs + h->n_blocks) > ptr + len) {
- printk(BAD_FW "too short");
- return -EINVAL;
- }
-
- if (cyc_isfwstr(h->name, sizeof(h->name)) ||
- cyc_isfwstr(h->date, sizeof(h->date))) {
- printk(BAD_FW "bad formatted header string\n");
- return -EINVAL;
- }
-
- if (strncmp(name, h->name, sizeof(h->name))) {
- printk(BAD_FW "bad name '%s' (expected '%s')\n", h->name, name);
- return -EINVAL;
- }
-
- tmp = 0;
- for (c = cs; c < cs + h->n_config; c++) {
- for (a = 0; a < c->n_blocks; a++)
- if (c->block_list[a] > h->n_blocks) {
- printk(BAD_FW "bad block ref number in cfgs\n");
- return -EINVAL;
- }
- if (c->mailbox == mailbox && c->function == 0) /* 0 is normal */
- tmp++;
- }
- if (!tmp) {
- printk(BAD_FW "nothing appropriate\n");
- return -EINVAL;
- }
-
- for (b = bs; b < bs + h->n_blocks; b++)
- if (b->file_offset + b->size > len) {
- printk(BAD_FW "bad block data offset\n");
- return -EINVAL;
- }
-
- /* everything is OK, let's seek'n'load it */
- for (c = cs; c < cs + h->n_config; c++)
- if (c->mailbox == mailbox && c->function == 0)
- break;
-
- for (a = 0; a < c->n_blocks; a++) {
- b = &bs[c->block_list[a]];
- if (b->type == ZBLOCK_FPGA) {
- if (fpga != NULL)
- cyz_fpga_copy(fpga, ptr + b->file_offset,
- b->size);
- } else {
- if (base != NULL)
- memcpy_toio(base + b->ram_offset,
- ptr + b->file_offset, b->size);
- }
- }
-#undef BAD_FW
- return 0;
-}
-
-static int __devinit cyz_load_fw(struct pci_dev *pdev, void __iomem *base_addr,
- struct RUNTIME_9060 __iomem *ctl_addr, int irq)
-{
- const struct firmware *fw;
- struct FIRM_ID __iomem *fid = base_addr + ID_ADDRESS;
- struct CUSTOM_REG __iomem *cust = base_addr;
- struct ZFW_CTRL __iomem *pt_zfwctrl;
- void __iomem *tmp;
- u32 mailbox, status, nchan;
- unsigned int i;
- int retval;
-
- retval = request_firmware(&fw, "cyzfirm.bin", &pdev->dev);
- if (retval) {
- dev_err(&pdev->dev, "can't get firmware\n");
- goto err;
- }
-
- /* Check whether the firmware is already loaded and running. If
- positive, skip this board */
- if (__cyz_fpga_loaded(ctl_addr) && readl(&fid->signature) == ZFIRM_ID) {
- u32 cntval = readl(base_addr + 0x190);
-
- udelay(100);
- if (cntval != readl(base_addr + 0x190)) {
- /* FW counter is working, FW is running */
- dev_dbg(&pdev->dev, "Cyclades-Z FW already loaded. "
- "Skipping board.\n");
- retval = 0;
- goto err_rel;
- }
- }
-
- /* start boot */
- cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) &
- ~0x00030800UL);
-
- mailbox = readl(&ctl_addr->mail_box_0);
-
- if (mailbox == 0 || __cyz_fpga_loaded(ctl_addr)) {
- /* stops CPU and set window to beginning of RAM */
- cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
- cy_writel(&cust->cpu_stop, 0);
- cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
- udelay(100);
- }
-
- plx_init(pdev, irq, ctl_addr);
-
- if (mailbox != 0) {
- /* load FPGA */
- retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, NULL,
- base_addr);
- if (retval)
- goto err_rel;
- if (!__cyz_fpga_loaded(ctl_addr)) {
- dev_err(&pdev->dev, "fw upload successful, but fw is "
- "not loaded\n");
- goto err_rel;
- }
- }
-
- /* stops CPU and set window to beginning of RAM */
- cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
- cy_writel(&cust->cpu_stop, 0);
- cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
- udelay(100);
-
- /* clear memory */
- for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++)
- cy_writeb(tmp, 255);
- if (mailbox != 0) {
- /* set window to last 512K of RAM */
- cy_writel(&ctl_addr->loc_addr_base, WIN_RAM + RAM_SIZE);
- for (tmp = base_addr; tmp < base_addr + RAM_SIZE; tmp++)
- cy_writeb(tmp, 255);
- /* set window to beginning of RAM */
- cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
- }
-
- retval = __cyz_load_fw(fw, "Cyclom-Z", mailbox, base_addr, NULL);
- release_firmware(fw);
- if (retval)
- goto err;
-
- /* finish boot and start boards */
- cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
- cy_writel(&cust->cpu_start, 0);
- cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
- i = 0;
- while ((status = readl(&fid->signature)) != ZFIRM_ID && i++ < 40)
- msleep(100);
- if (status != ZFIRM_ID) {
- if (status == ZFIRM_HLT) {
- dev_err(&pdev->dev, "you need an external power supply "
- "for this number of ports. Firmware halted and "
- "board reset.\n");
- retval = -EIO;
- goto err;
- }
- dev_warn(&pdev->dev, "fid->signature = 0x%x... Waiting "
- "some more time\n", status);
- while ((status = readl(&fid->signature)) != ZFIRM_ID &&
- i++ < 200)
- msleep(100);
- if (status != ZFIRM_ID) {
- dev_err(&pdev->dev, "Board not started in 20 seconds! "
- "Giving up. (fid->signature = 0x%x)\n",
- status);
- dev_info(&pdev->dev, "*** Warning ***: if you are "
- "upgrading the FW, please power cycle the "
- "system before loading the new FW to the "
- "Cyclades-Z.\n");
-
- if (__cyz_fpga_loaded(ctl_addr))
- plx_init(pdev, irq, ctl_addr);
-
- retval = -EIO;
- goto err;
- }
- dev_dbg(&pdev->dev, "Firmware started after %d seconds.\n",
- i / 10);
- }
- pt_zfwctrl = base_addr + readl(&fid->zfwctrl_addr);
-
- dev_dbg(&pdev->dev, "fid=> %p, zfwctrl_addr=> %x, npt_zfwctrl=> %p\n",
- base_addr + ID_ADDRESS, readl(&fid->zfwctrl_addr),
- base_addr + readl(&fid->zfwctrl_addr));
-
- nchan = readl(&pt_zfwctrl->board_ctrl.n_channel);
- dev_info(&pdev->dev, "Cyclades-Z FW loaded: version = %x, ports = %u\n",
- readl(&pt_zfwctrl->board_ctrl.fw_version), nchan);
-
- if (nchan == 0) {
- dev_warn(&pdev->dev, "no Cyclades-Z ports were found. Please "
- "check the connection between the Z host card and the "
- "serial expanders.\n");
-
- if (__cyz_fpga_loaded(ctl_addr))
- plx_init(pdev, irq, ctl_addr);
-
- dev_info(&pdev->dev, "Null number of ports detected. Board "
- "reset.\n");
- retval = 0;
- goto err;
- }
-
- cy_writel(&pt_zfwctrl->board_ctrl.op_system, C_OS_LINUX);
- cy_writel(&pt_zfwctrl->board_ctrl.dr_version, DRIVER_VERSION);
-
- /*
- Early firmware failed to start looking for commands.
- This enables firmware interrupts for those commands.
- */
- cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) |
- (1 << 17));
- cy_writel(&ctl_addr->intr_ctrl_stat, readl(&ctl_addr->intr_ctrl_stat) |
- 0x00030800UL);
-
- return nchan;
-err_rel:
- release_firmware(fw);
-err:
- return retval;
-}
-
-static int __devinit cy_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- void __iomem *addr0 = NULL, *addr2 = NULL;
- char *card_name = NULL;
- u32 uninitialized_var(mailbox);
- unsigned int device_id, nchan = 0, card_no, i;
- unsigned char plx_ver;
- int retval, irq;
-
- retval = pci_enable_device(pdev);
- if (retval) {
- dev_err(&pdev->dev, "cannot enable device\n");
- goto err;
- }
-
- /* read PCI configuration area */
- irq = pdev->irq;
- device_id = pdev->device & ~PCI_DEVICE_ID_MASK;
-
-#if defined(__alpha__)
- if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo) { /* below 1M? */
- dev_err(&pdev->dev, "Cyclom-Y/PCI not supported for low "
- "addresses on Alpha systems.\n");
- retval = -EIO;
- goto err_dis;
- }
-#endif
- if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Lo) {
- dev_err(&pdev->dev, "Cyclades-Z/PCI not supported for low "
- "addresses\n");
- retval = -EIO;
- goto err_dis;
- }
-
- if (pci_resource_flags(pdev, 2) & IORESOURCE_IO) {
- dev_warn(&pdev->dev, "PCI I/O bit incorrectly set. Ignoring "
- "it...\n");
- pdev->resource[2].flags &= ~IORESOURCE_IO;
- }
-
- retval = pci_request_regions(pdev, "cyclades");
- if (retval) {
- dev_err(&pdev->dev, "failed to reserve resources\n");
- goto err_dis;
- }
-
- retval = -EIO;
- if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
- device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
- card_name = "Cyclom-Y";
-
- addr0 = ioremap_nocache(pci_resource_start(pdev, 0),
- CyPCI_Yctl);
- if (addr0 == NULL) {
- dev_err(&pdev->dev, "can't remap ctl region\n");
- goto err_reg;
- }
- addr2 = ioremap_nocache(pci_resource_start(pdev, 2),
- CyPCI_Ywin);
- if (addr2 == NULL) {
- dev_err(&pdev->dev, "can't remap base region\n");
- goto err_unmap;
- }
-
- nchan = CyPORTS_PER_CHIP * cyy_init_card(addr2, 1);
- if (nchan == 0) {
- dev_err(&pdev->dev, "Cyclom-Y PCI host card with no "
- "Serial-Modules\n");
- goto err_unmap;
- }
- } else if (device_id == PCI_DEVICE_ID_CYCLOM_Z_Hi) {
- struct RUNTIME_9060 __iomem *ctl_addr;
-
- ctl_addr = addr0 = ioremap_nocache(pci_resource_start(pdev, 0),
- CyPCI_Zctl);
- if (addr0 == NULL) {
- dev_err(&pdev->dev, "can't remap ctl region\n");
- goto err_reg;
- }
-
- /* Disable interrupts on the PLX before resetting it */
- cy_writew(&ctl_addr->intr_ctrl_stat,
- readw(&ctl_addr->intr_ctrl_stat) & ~0x0900);
-
- plx_init(pdev, irq, addr0);
-
- mailbox = readl(&ctl_addr->mail_box_0);
-
- addr2 = ioremap_nocache(pci_resource_start(pdev, 2),
- mailbox == ZE_V1 ? CyPCI_Ze_win : CyPCI_Zwin);
- if (addr2 == NULL) {
- dev_err(&pdev->dev, "can't remap base region\n");
- goto err_unmap;
- }
-
- if (mailbox == ZE_V1) {
- card_name = "Cyclades-Ze";
- } else {
- card_name = "Cyclades-8Zo";
-#ifdef CY_PCI_DEBUG
- if (mailbox == ZO_V1) {
- cy_writel(&ctl_addr->loc_addr_base, WIN_CREG);
- dev_info(&pdev->dev, "Cyclades-8Zo/PCI: FPGA "
- "id %lx, ver %lx\n", (ulong)(0xff &
- readl(&((struct CUSTOM_REG *)addr2)->
- fpga_id)), (ulong)(0xff &
- readl(&((struct CUSTOM_REG *)addr2)->
- fpga_version)));
- cy_writel(&ctl_addr->loc_addr_base, WIN_RAM);
- } else {
- dev_info(&pdev->dev, "Cyclades-Z/PCI: New "
- "Cyclades-Z board. FPGA not loaded\n");
- }
-#endif
- /* The following clears the firmware id word. This
- ensures that the driver will not attempt to talk to
- the board until it has been properly initialized.
- */
- if ((mailbox == ZO_V1) || (mailbox == ZO_V2))
- cy_writel(addr2 + ID_ADDRESS, 0L);
- }
-
- retval = cyz_load_fw(pdev, addr2, addr0, irq);
- if (retval <= 0)
- goto err_unmap;
- nchan = retval;
- }
-
- if ((cy_next_channel + nchan) > NR_PORTS) {
- dev_err(&pdev->dev, "Cyclades-8Zo/PCI found, but no "
- "channels are available. Change NR_PORTS in "
- "cyclades.c and recompile kernel.\n");
- goto err_unmap;
- }
- /* fill the next cy_card structure available */
- for (card_no = 0; card_no < NR_CARDS; card_no++) {
- if (cy_card[card_no].base_addr == NULL)
- break;
- }
- if (card_no == NR_CARDS) { /* no more cy_cards available */
- dev_err(&pdev->dev, "Cyclades-8Zo/PCI found, but no "
- "more cards can be used. Change NR_CARDS in "
- "cyclades.c and recompile kernel.\n");
- goto err_unmap;
- }
-
- if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
- device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
- /* allocate IRQ */
- retval = request_irq(irq, cyy_interrupt,
- IRQF_SHARED, "Cyclom-Y", &cy_card[card_no]);
- if (retval) {
- dev_err(&pdev->dev, "could not allocate IRQ\n");
- goto err_unmap;
- }
- cy_card[card_no].num_chips = nchan / CyPORTS_PER_CHIP;
- } else {
- struct FIRM_ID __iomem *firm_id = addr2 + ID_ADDRESS;
- struct ZFW_CTRL __iomem *zfw_ctrl;
-
- zfw_ctrl = addr2 + (readl(&firm_id->zfwctrl_addr) & 0xfffff);
-
- cy_card[card_no].hw_ver = mailbox;
- cy_card[card_no].num_chips = (unsigned int)-1;
- cy_card[card_no].board_ctrl = &zfw_ctrl->board_ctrl;
-#ifdef CONFIG_CYZ_INTR
- /* allocate IRQ only if board has an IRQ */
- if (irq != 0 && irq != 255) {
- retval = request_irq(irq, cyz_interrupt,
- IRQF_SHARED, "Cyclades-Z",
- &cy_card[card_no]);
- if (retval) {
- dev_err(&pdev->dev, "could not allocate IRQ\n");
- goto err_unmap;
- }
- }
-#endif /* CONFIG_CYZ_INTR */
- }
-
- /* set cy_card */
- cy_card[card_no].base_addr = addr2;
- cy_card[card_no].ctl_addr.p9050 = addr0;
- cy_card[card_no].irq = irq;
- cy_card[card_no].bus_index = 1;
- cy_card[card_no].first_line = cy_next_channel;
- cy_card[card_no].nports = nchan;
- retval = cy_init_card(&cy_card[card_no]);
- if (retval)
- goto err_null;
-
- pci_set_drvdata(pdev, &cy_card[card_no]);
-
- if (device_id == PCI_DEVICE_ID_CYCLOM_Y_Lo ||
- device_id == PCI_DEVICE_ID_CYCLOM_Y_Hi) {
- /* enable interrupts in the PCI interface */
- plx_ver = readb(addr2 + CyPLX_VER) & 0x0f;
- switch (plx_ver) {
- case PLX_9050:
- cy_writeb(addr0 + 0x4c, 0x43);
- break;
-
- case PLX_9060:
- case PLX_9080:
- default: /* Old boards, use PLX_9060 */
- {
- struct RUNTIME_9060 __iomem *ctl_addr = addr0;
- plx_init(pdev, irq, ctl_addr);
- cy_writew(&ctl_addr->intr_ctrl_stat,
- readw(&ctl_addr->intr_ctrl_stat) | 0x0900);
- break;
- }
- }
- }
-
- dev_info(&pdev->dev, "%s/PCI #%d found: %d channels starting from "
- "port %d.\n", card_name, card_no + 1, nchan, cy_next_channel);
- for (i = cy_next_channel; i < cy_next_channel + nchan; i++)
- tty_register_device(cy_serial_driver, i, &pdev->dev);
- cy_next_channel += nchan;
-
- return 0;
-err_null:
- cy_card[card_no].base_addr = NULL;
- free_irq(irq, &cy_card[card_no]);
-err_unmap:
- iounmap(addr0);
- if (addr2)
- iounmap(addr2);
-err_reg:
- pci_release_regions(pdev);
-err_dis:
- pci_disable_device(pdev);
-err:
- return retval;
-}
-
-static void __devexit cy_pci_remove(struct pci_dev *pdev)
-{
- struct cyclades_card *cinfo = pci_get_drvdata(pdev);
- unsigned int i;
-
- /* non-Z with old PLX */
- if (!cy_is_Z(cinfo) && (readb(cinfo->base_addr + CyPLX_VER) & 0x0f) ==
- PLX_9050)
- cy_writeb(cinfo->ctl_addr.p9050 + 0x4c, 0);
- else
-#ifndef CONFIG_CYZ_INTR
- if (!cy_is_Z(cinfo))
-#endif
- cy_writew(&cinfo->ctl_addr.p9060->intr_ctrl_stat,
- readw(&cinfo->ctl_addr.p9060->intr_ctrl_stat) &
- ~0x0900);
-
- iounmap(cinfo->base_addr);
- if (cinfo->ctl_addr.p9050)
- iounmap(cinfo->ctl_addr.p9050);
- if (cinfo->irq
-#ifndef CONFIG_CYZ_INTR
- && !cy_is_Z(cinfo)
-#endif /* CONFIG_CYZ_INTR */
- )
- free_irq(cinfo->irq, cinfo);
- pci_release_regions(pdev);
-
- cinfo->base_addr = NULL;
- for (i = cinfo->first_line; i < cinfo->first_line +
- cinfo->nports; i++)
- tty_unregister_device(cy_serial_driver, i);
- cinfo->nports = 0;
- kfree(cinfo->ports);
-}
-
-static struct pci_driver cy_pci_driver = {
- .name = "cyclades",
- .id_table = cy_pci_dev_id,
- .probe = cy_pci_probe,
- .remove = __devexit_p(cy_pci_remove)
-};
-#endif
-
-static int cyclades_proc_show(struct seq_file *m, void *v)
-{
- struct cyclades_port *info;
- unsigned int i, j;
- __u32 cur_jifs = jiffies;
-
- seq_puts(m, "Dev TimeOpen BytesOut IdleOut BytesIn "
- "IdleIn Overruns Ldisc\n");
-
- /* Output one line for each known port */
- for (i = 0; i < NR_CARDS; i++)
- for (j = 0; j < cy_card[i].nports; j++) {
- info = &cy_card[i].ports[j];
-
- if (info->port.count) {
- /* XXX is the ldisc num worth this? */
- struct tty_struct *tty;
- struct tty_ldisc *ld;
- int num = 0;
- tty = tty_port_tty_get(&info->port);
- if (tty) {
- ld = tty_ldisc_ref(tty);
- if (ld) {
- num = ld->ops->num;
- tty_ldisc_deref(ld);
- }
- tty_kref_put(tty);
- }
- seq_printf(m, "%3d %8lu %10lu %8lu "
- "%10lu %8lu %9lu %6d\n", info->line,
- (cur_jifs - info->idle_stats.in_use) /
- HZ, info->idle_stats.xmit_bytes,
- (cur_jifs - info->idle_stats.xmit_idle)/
- HZ, info->idle_stats.recv_bytes,
- (cur_jifs - info->idle_stats.recv_idle)/
- HZ, info->idle_stats.overruns,
- num);
- } else
- seq_printf(m, "%3d %8lu %10lu %8lu "
- "%10lu %8lu %9lu %6ld\n",
- info->line, 0L, 0L, 0L, 0L, 0L, 0L, 0L);
- }
- return 0;
-}
-
-static int cyclades_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, cyclades_proc_show, NULL);
-}
-
-static const struct file_operations cyclades_proc_fops = {
- .owner = THIS_MODULE,
- .open = cyclades_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/* The serial driver boot-time initialization code!
- Hardware I/O ports are mapped to character special devices on a
- first found, first allocated manner. That is, this code searches
- for Cyclom cards in the system. As each is found, it is probed
- to discover how many chips (and thus how many ports) are present.
- These ports are mapped to the tty ports 32 and upward in monotonic
- fashion. If an 8-port card is replaced with a 16-port card, the
- port mapping on a following card will shift.
-
- This approach is different from what is used in the other serial
- device driver because the Cyclom is more properly a multiplexer,
- not just an aggregation of serial ports on one card.
-
- If there are more cards with more ports than have been
- statically allocated above, a warning is printed and the
- extra ports are ignored.
- */
-
-static const struct tty_operations cy_ops = {
- .open = cy_open,
- .close = cy_close,
- .write = cy_write,
- .put_char = cy_put_char,
- .flush_chars = cy_flush_chars,
- .write_room = cy_write_room,
- .chars_in_buffer = cy_chars_in_buffer,
- .flush_buffer = cy_flush_buffer,
- .ioctl = cy_ioctl,
- .throttle = cy_throttle,
- .unthrottle = cy_unthrottle,
- .set_termios = cy_set_termios,
- .stop = cy_stop,
- .start = cy_start,
- .hangup = cy_hangup,
- .break_ctl = cy_break,
- .wait_until_sent = cy_wait_until_sent,
- .tiocmget = cy_tiocmget,
- .tiocmset = cy_tiocmset,
- .get_icount = cy_get_icount,
- .proc_fops = &cyclades_proc_fops,
-};
-
-static int __init cy_init(void)
-{
- unsigned int nboards;
- int retval = -ENOMEM;
-
- cy_serial_driver = alloc_tty_driver(NR_PORTS);
- if (!cy_serial_driver)
- goto err;
-
- printk(KERN_INFO "Cyclades driver " CY_VERSION " (built %s %s)\n",
- __DATE__, __TIME__);
-
- /* Initialize the tty_driver structure */
-
- cy_serial_driver->owner = THIS_MODULE;
- cy_serial_driver->driver_name = "cyclades";
- cy_serial_driver->name = "ttyC";
- cy_serial_driver->major = CYCLADES_MAJOR;
- cy_serial_driver->minor_start = 0;
- cy_serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- cy_serial_driver->subtype = SERIAL_TYPE_NORMAL;
- cy_serial_driver->init_termios = tty_std_termios;
- cy_serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- cy_serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(cy_serial_driver, &cy_ops);
-
- retval = tty_register_driver(cy_serial_driver);
- if (retval) {
- printk(KERN_ERR "Couldn't register Cyclades serial driver\n");
- goto err_frtty;
- }
-
- /* the code below is responsible to find the boards. Each different
- type of board has its own detection routine. If a board is found,
- the next cy_card structure available is set by the detection
- routine. These functions are responsible for checking the
- availability of cy_card and cy_port data structures and updating
- the cy_next_channel. */
-
- /* look for isa boards */
- nboards = cy_detect_isa();
-
-#ifdef CONFIG_PCI
- /* look for pci boards */
- retval = pci_register_driver(&cy_pci_driver);
- if (retval && !nboards) {
- tty_unregister_driver(cy_serial_driver);
- goto err_frtty;
- }
-#endif
-
- return 0;
-err_frtty:
- put_tty_driver(cy_serial_driver);
-err:
- return retval;
-} /* cy_init */
-
-static void __exit cy_cleanup_module(void)
-{
- struct cyclades_card *card;
- unsigned int i, e1;
-
-#ifndef CONFIG_CYZ_INTR
- del_timer_sync(&cyz_timerlist);
-#endif /* CONFIG_CYZ_INTR */
-
- e1 = tty_unregister_driver(cy_serial_driver);
- if (e1)
- printk(KERN_ERR "failed to unregister Cyclades serial "
- "driver(%d)\n", e1);
-
-#ifdef CONFIG_PCI
- pci_unregister_driver(&cy_pci_driver);
-#endif
-
- for (i = 0; i < NR_CARDS; i++) {
- card = &cy_card[i];
- if (card->base_addr) {
- /* clear interrupt */
- cy_writeb(card->base_addr + Cy_ClrIntr, 0);
- iounmap(card->base_addr);
- if (card->ctl_addr.p9050)
- iounmap(card->ctl_addr.p9050);
- if (card->irq
-#ifndef CONFIG_CYZ_INTR
- && !cy_is_Z(card)
-#endif /* CONFIG_CYZ_INTR */
- )
- free_irq(card->irq, card);
- for (e1 = card->first_line; e1 < card->first_line +
- card->nports; e1++)
- tty_unregister_device(cy_serial_driver, e1);
- kfree(card->ports);
- }
- }
-
- put_tty_driver(cy_serial_driver);
-} /* cy_cleanup_module */
-
-module_init(cy_init);
-module_exit(cy_cleanup_module);
-
-MODULE_LICENSE("GPL");
-MODULE_VERSION(CY_VERSION);
-MODULE_ALIAS_CHARDEV_MAJOR(CYCLADES_MAJOR);
-MODULE_FIRMWARE("cyzfirm.bin");
diff --git a/drivers/char/digi1.h b/drivers/char/digi1.h
deleted file mode 100644
index 94d4eab5d3c..00000000000
--- a/drivers/char/digi1.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/* Definitions for DigiBoard ditty(1) command. */
-
-#if !defined(TIOCMODG)
-#define TIOCMODG (('d'<<8) | 250) /* get modem ctrl state */
-#define TIOCMODS (('d'<<8) | 251) /* set modem ctrl state */
-#endif
-
-#if !defined(TIOCMSET)
-#define TIOCMSET (('d'<<8) | 252) /* set modem ctrl state */
-#define TIOCMGET (('d'<<8) | 253) /* set modem ctrl state */
-#endif
-
-#if !defined(TIOCMBIC)
-#define TIOCMBIC (('d'<<8) | 254) /* set modem ctrl state */
-#define TIOCMBIS (('d'<<8) | 255) /* set modem ctrl state */
-#endif
-
-#if !defined(TIOCSDTR)
-#define TIOCSDTR (('e'<<8) | 0) /* set DTR */
-#define TIOCCDTR (('e'<<8) | 1) /* clear DTR */
-#endif
-
-/************************************************************************
- * Ioctl command arguments for DIGI parameters.
- ************************************************************************/
-#define DIGI_GETA (('e'<<8) | 94) /* Read params */
-
-#define DIGI_SETA (('e'<<8) | 95) /* Set params */
-#define DIGI_SETAW (('e'<<8) | 96) /* Drain & set params */
-#define DIGI_SETAF (('e'<<8) | 97) /* Drain, flush & set params */
-
-#define DIGI_GETFLOW (('e'<<8) | 99) /* Get startc/stopc flow */
- /* control characters */
-#define DIGI_SETFLOW (('e'<<8) | 100) /* Set startc/stopc flow */
- /* control characters */
-#define DIGI_GETAFLOW (('e'<<8) | 101) /* Get Aux. startc/stopc */
- /* flow control chars */
-#define DIGI_SETAFLOW (('e'<<8) | 102) /* Set Aux. startc/stopc */
- /* flow control chars */
-
-#define DIGI_GETINFO (('e'<<8) | 103) /* Fill in digi_info */
-#define DIGI_POLLER (('e'<<8) | 104) /* Turn on/off poller */
-#define DIGI_INIT (('e'<<8) | 105) /* Allow things to run. */
-
-struct digiflow_struct
-{
- unsigned char startc; /* flow cntl start char */
- unsigned char stopc; /* flow cntl stop char */
-};
-
-typedef struct digiflow_struct digiflow_t;
-
-
-/************************************************************************
- * Values for digi_flags
- ************************************************************************/
-#define DIGI_IXON 0x0001 /* Handle IXON in the FEP */
-#define DIGI_FAST 0x0002 /* Fast baud rates */
-#define RTSPACE 0x0004 /* RTS input flow control */
-#define CTSPACE 0x0008 /* CTS output flow control */
-#define DSRPACE 0x0010 /* DSR output flow control */
-#define DCDPACE 0x0020 /* DCD output flow control */
-#define DTRPACE 0x0040 /* DTR input flow control */
-#define DIGI_FORCEDCD 0x0100 /* Force carrier */
-#define DIGI_ALTPIN 0x0200 /* Alternate RJ-45 pin config */
-#define DIGI_AIXON 0x0400 /* Aux flow control in fep */
-
-
-/************************************************************************
- * Values for digiDload
- ************************************************************************/
-#define NORMAL 0
-#define PCI_CTL 1
-
-#define SIZE8 0
-#define SIZE16 1
-#define SIZE32 2
-
-/************************************************************************
- * Structure used with ioctl commands for DIGI parameters.
- ************************************************************************/
-struct digi_struct
-{
- unsigned short digi_flags; /* Flags (see above) */
-};
-
-typedef struct digi_struct digi_t;
-
-struct digi_info
-{
- unsigned long board; /* Which board is this ? */
- unsigned char status; /* Alive or dead */
- unsigned char type; /* see epca.h */
- unsigned char subtype; /* For future XEM, XR, etc ... */
- unsigned short numports; /* Number of ports configured */
- unsigned char *port; /* I/O Address */
- unsigned char *membase; /* DPR Address */
- unsigned char *version; /* For future ... */
- unsigned short windowData; /* For future ... */
-} ;
diff --git a/drivers/char/digiFep1.h b/drivers/char/digiFep1.h
deleted file mode 100644
index 3c1f1922c79..00000000000
--- a/drivers/char/digiFep1.h
+++ /dev/null
@@ -1,136 +0,0 @@
-
-#define CSTART 0x400L
-#define CMAX 0x800L
-#define ISTART 0x800L
-#define IMAX 0xC00L
-#define CIN 0xD10L
-#define GLOBAL 0xD10L
-#define EIN 0xD18L
-#define FEPSTAT 0xD20L
-#define CHANSTRUCT 0x1000L
-#define RXTXBUF 0x4000L
-
-
-struct global_data
-{
- u16 cin;
- u16 cout;
- u16 cstart;
- u16 cmax;
- u16 ein;
- u16 eout;
- u16 istart;
- u16 imax;
-};
-
-
-struct board_chan
-{
- u32 filler1;
- u32 filler2;
- u16 tseg;
- u16 tin;
- u16 tout;
- u16 tmax;
-
- u16 rseg;
- u16 rin;
- u16 rout;
- u16 rmax;
-
- u16 tlow;
- u16 rlow;
- u16 rhigh;
- u16 incr;
-
- u16 etime;
- u16 edelay;
- unchar *dev;
-
- u16 iflag;
- u16 oflag;
- u16 cflag;
- u16 gmask;
-
- u16 col;
- u16 delay;
- u16 imask;
- u16 tflush;
-
- u32 filler3;
- u32 filler4;
- u32 filler5;
- u32 filler6;
-
- u8 num;
- u8 ract;
- u8 bstat;
- u8 tbusy;
- u8 iempty;
- u8 ilow;
- u8 idata;
- u8 eflag;
-
- u8 tflag;
- u8 rflag;
- u8 xmask;
- u8 xval;
- u8 mstat;
- u8 mchange;
- u8 mint;
- u8 lstat;
-
- u8 mtran;
- u8 orun;
- u8 startca;
- u8 stopca;
- u8 startc;
- u8 stopc;
- u8 vnext;
- u8 hflow;
-
- u8 fillc;
- u8 ochar;
- u8 omask;
-
- u8 filler7;
- u8 filler8[28];
-};
-
-
-#define SRXLWATER 0xE0
-#define SRXHWATER 0xE1
-#define STOUT 0xE2
-#define PAUSETX 0xE3
-#define RESUMETX 0xE4
-#define SAUXONOFFC 0xE6
-#define SENDBREAK 0xE8
-#define SETMODEM 0xE9
-#define SETIFLAGS 0xEA
-#define SONOFFC 0xEB
-#define STXLWATER 0xEC
-#define PAUSERX 0xEE
-#define RESUMERX 0xEF
-#define SETBUFFER 0xF2
-#define SETCOOKED 0xF3
-#define SETHFLOW 0xF4
-#define SETCTRLFLAGS 0xF5
-#define SETVNEXT 0xF6
-
-
-
-#define BREAK_IND 0x01
-#define LOWTX_IND 0x02
-#define EMPTYTX_IND 0x04
-#define DATA_IND 0x08
-#define MODEMCHG_IND 0x20
-
-#define FEP_HUPCL 0002000
-#if 0
-#define RTS 0x02
-#define CD 0x08
-#define DSR 0x10
-#define CTS 0x20
-#define RI 0x40
-#define DTR 0x80
-#endif
diff --git a/drivers/char/digiPCI.h b/drivers/char/digiPCI.h
deleted file mode 100644
index 6ca7819e506..00000000000
--- a/drivers/char/digiPCI.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*************************************************************************
- * Defines and structure definitions for PCI BIOS Interface
- *************************************************************************/
-#define PCIMAX 32 /* maximum number of PCI boards */
-
-
-#define PCI_VENDOR_DIGI 0x114F
-#define PCI_DEVICE_EPC 0x0002
-#define PCI_DEVICE_RIGHTSWITCH 0x0003 /* For testing */
-#define PCI_DEVICE_XEM 0x0004
-#define PCI_DEVICE_XR 0x0005
-#define PCI_DEVICE_CX 0x0006
-#define PCI_DEVICE_XRJ 0x0009 /* Jupiter boards with */
-#define PCI_DEVICE_EPCJ 0x000a /* PLX 9060 chip for PCI */
-
-
-/*
- * On the PCI boards, there is no IO space allocated
- * The I/O registers will be in the first 3 bytes of the
- * upper 2MB of the 4MB memory space. The board memory
- * will be mapped into the low 2MB of the 4MB memory space
- */
-
-/* Potential location of PCI Bios from E0000 to FFFFF*/
-#define PCI_BIOS_SIZE 0x00020000
-
-/* Size of Memory and I/O for PCI (4MB) */
-#define PCI_RAM_SIZE 0x00400000
-
-/* Size of Memory (2MB) */
-#define PCI_MEM_SIZE 0x00200000
-
-/* Offset of I/0 in Memory (2MB) */
-#define PCI_IO_OFFSET 0x00200000
-
-#define MEMOUTB(basemem, pnum, setmemval) *(caddr_t)((basemem) + ( PCI_IO_OFFSET | pnum << 4 | pnum )) = (setmemval)
-#define MEMINB(basemem, pnum) *(caddr_t)((basemem) + (PCI_IO_OFFSET | pnum << 4 | pnum )) /* for PCI I/O */
-
-
-
-
-
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
deleted file mode 100644
index d9df46aa0fb..00000000000
--- a/drivers/char/epca.c
+++ /dev/null
@@ -1,2784 +0,0 @@
-/*
- Copyright (C) 1996 Digi International.
-
- For technical support please email digiLinux@dgii.com or
- call Digi tech support at (612) 912-3456
-
- ** This driver is no longer supported by Digi **
-
- Much of this design and code came from epca.c which was
- copyright (C) 1994, 1995 Troy De Jongh, and subsquently
- modified by David Nugent, Christoph Lameter, Mike McLagan.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-/* See README.epca for change history --DAT*/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/uaccess.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-#include <linux/pci.h>
-#include "digiPCI.h"
-
-
-#include "digi1.h"
-#include "digiFep1.h"
-#include "epca.h"
-#include "epcaconfig.h"
-
-#define VERSION "1.3.0.1-LK2.6"
-
-/* This major needs to be submitted to Linux to join the majors list */
-#define DIGIINFOMAJOR 35 /* For Digi specific ioctl */
-
-
-#define MAXCARDS 7
-#define epcaassert(x, msg) if (!(x)) epca_error(__LINE__, msg)
-
-#define PFX "epca: "
-
-static int nbdevs, num_cards, liloconfig;
-static int digi_poller_inhibited = 1 ;
-
-static int setup_error_code;
-static int invalid_lilo_config;
-
-/*
- * The ISA boards do window flipping into the same spaces so its only sane with
- * a single lock. It's still pretty efficient. This lock guards the hardware
- * and the tty_port lock guards the kernel side stuff like use counts. Take
- * this lock inside the port lock if you must take both.
- */
-static DEFINE_SPINLOCK(epca_lock);
-
-/* MAXBOARDS is typically 12, but ISA and EISA cards are restricted
- to 7 below. */
-static struct board_info boards[MAXBOARDS];
-
-static struct tty_driver *pc_driver;
-static struct tty_driver *pc_info;
-
-/* ------------------ Begin Digi specific structures -------------------- */
-
-/*
- * digi_channels represents an array of structures that keep track of each
- * channel of the Digi product. Information such as transmit and receive
- * pointers, termio data, and signal definitions (DTR, CTS, etc ...) are stored
- * here. This structure is NOT used to overlay the cards physical channel
- * structure.
- */
-static struct channel digi_channels[MAX_ALLOC];
-
-/*
- * card_ptr is an array used to hold the address of the first channel structure
- * of each card. This array will hold the addresses of various channels located
- * in digi_channels.
- */
-static struct channel *card_ptr[MAXCARDS];
-
-static struct timer_list epca_timer;
-
-/*
- * Begin generic memory functions. These functions will be alias (point at)
- * more specific functions dependent on the board being configured.
- */
-static void memwinon(struct board_info *b, unsigned int win);
-static void memwinoff(struct board_info *b, unsigned int win);
-static void globalwinon(struct channel *ch);
-static void rxwinon(struct channel *ch);
-static void txwinon(struct channel *ch);
-static void memoff(struct channel *ch);
-static void assertgwinon(struct channel *ch);
-static void assertmemoff(struct channel *ch);
-
-/* ---- Begin more 'specific' memory functions for cx_like products --- */
-
-static void pcxem_memwinon(struct board_info *b, unsigned int win);
-static void pcxem_memwinoff(struct board_info *b, unsigned int win);
-static void pcxem_globalwinon(struct channel *ch);
-static void pcxem_rxwinon(struct channel *ch);
-static void pcxem_txwinon(struct channel *ch);
-static void pcxem_memoff(struct channel *ch);
-
-/* ------ Begin more 'specific' memory functions for the pcxe ------- */
-
-static void pcxe_memwinon(struct board_info *b, unsigned int win);
-static void pcxe_memwinoff(struct board_info *b, unsigned int win);
-static void pcxe_globalwinon(struct channel *ch);
-static void pcxe_rxwinon(struct channel *ch);
-static void pcxe_txwinon(struct channel *ch);
-static void pcxe_memoff(struct channel *ch);
-
-/* ---- Begin more 'specific' memory functions for the pc64xe and pcxi ---- */
-/* Note : pc64xe and pcxi share the same windowing routines */
-
-static void pcxi_memwinon(struct board_info *b, unsigned int win);
-static void pcxi_memwinoff(struct board_info *b, unsigned int win);
-static void pcxi_globalwinon(struct channel *ch);
-static void pcxi_rxwinon(struct channel *ch);
-static void pcxi_txwinon(struct channel *ch);
-static void pcxi_memoff(struct channel *ch);
-
-/* - Begin 'specific' do nothing memory functions needed for some cards - */
-
-static void dummy_memwinon(struct board_info *b, unsigned int win);
-static void dummy_memwinoff(struct board_info *b, unsigned int win);
-static void dummy_globalwinon(struct channel *ch);
-static void dummy_rxwinon(struct channel *ch);
-static void dummy_txwinon(struct channel *ch);
-static void dummy_memoff(struct channel *ch);
-static void dummy_assertgwinon(struct channel *ch);
-static void dummy_assertmemoff(struct channel *ch);
-
-static struct channel *verifyChannel(struct tty_struct *);
-static void pc_sched_event(struct channel *, int);
-static void epca_error(int, char *);
-static void pc_close(struct tty_struct *, struct file *);
-static void shutdown(struct channel *, struct tty_struct *tty);
-static void pc_hangup(struct tty_struct *);
-static int pc_write_room(struct tty_struct *);
-static int pc_chars_in_buffer(struct tty_struct *);
-static void pc_flush_buffer(struct tty_struct *);
-static void pc_flush_chars(struct tty_struct *);
-static int pc_open(struct tty_struct *, struct file *);
-static void post_fep_init(unsigned int crd);
-static void epcapoll(unsigned long);
-static void doevent(int);
-static void fepcmd(struct channel *, int, int, int, int, int);
-static unsigned termios2digi_h(struct channel *ch, unsigned);
-static unsigned termios2digi_i(struct channel *ch, unsigned);
-static unsigned termios2digi_c(struct channel *ch, unsigned);
-static void epcaparam(struct tty_struct *, struct channel *);
-static void receive_data(struct channel *, struct tty_struct *tty);
-static int pc_ioctl(struct tty_struct *, struct file *,
- unsigned int, unsigned long);
-static int info_ioctl(struct tty_struct *, struct file *,
- unsigned int, unsigned long);
-static void pc_set_termios(struct tty_struct *, struct ktermios *);
-static void do_softint(struct work_struct *work);
-static void pc_stop(struct tty_struct *);
-static void pc_start(struct tty_struct *);
-static void pc_throttle(struct tty_struct *tty);
-static void pc_unthrottle(struct tty_struct *tty);
-static int pc_send_break(struct tty_struct *tty, int msec);
-static void setup_empty_event(struct tty_struct *tty, struct channel *ch);
-
-static int pc_write(struct tty_struct *, const unsigned char *, int);
-static int pc_init(void);
-static int init_PCI(void);
-
-/*
- * Table of functions for each board to handle memory. Mantaining parallelism
- * is a *very* good idea here. The idea is for the runtime code to blindly call
- * these functions, not knowing/caring about the underlying hardware. This
- * stuff should contain no conditionals; if more functionality is needed a
- * different entry should be established. These calls are the interface calls
- * and are the only functions that should be accessed. Anyone caught making
- * direct calls deserves what they get.
- */
-static void memwinon(struct board_info *b, unsigned int win)
-{
- b->memwinon(b, win);
-}
-
-static void memwinoff(struct board_info *b, unsigned int win)
-{
- b->memwinoff(b, win);
-}
-
-static void globalwinon(struct channel *ch)
-{
- ch->board->globalwinon(ch);
-}
-
-static void rxwinon(struct channel *ch)
-{
- ch->board->rxwinon(ch);
-}
-
-static void txwinon(struct channel *ch)
-{
- ch->board->txwinon(ch);
-}
-
-static void memoff(struct channel *ch)
-{
- ch->board->memoff(ch);
-}
-static void assertgwinon(struct channel *ch)
-{
- ch->board->assertgwinon(ch);
-}
-
-static void assertmemoff(struct channel *ch)
-{
- ch->board->assertmemoff(ch);
-}
-
-/* PCXEM windowing is the same as that used in the PCXR and CX series cards. */
-static void pcxem_memwinon(struct board_info *b, unsigned int win)
-{
- outb_p(FEPWIN | win, b->port + 1);
-}
-
-static void pcxem_memwinoff(struct board_info *b, unsigned int win)
-{
- outb_p(0, b->port + 1);
-}
-
-static void pcxem_globalwinon(struct channel *ch)
-{
- outb_p(FEPWIN, (int)ch->board->port + 1);
-}
-
-static void pcxem_rxwinon(struct channel *ch)
-{
- outb_p(ch->rxwin, (int)ch->board->port + 1);
-}
-
-static void pcxem_txwinon(struct channel *ch)
-{
- outb_p(ch->txwin, (int)ch->board->port + 1);
-}
-
-static void pcxem_memoff(struct channel *ch)
-{
- outb_p(0, (int)ch->board->port + 1);
-}
-
-/* ----------------- Begin pcxe memory window stuff ------------------ */
-static void pcxe_memwinon(struct board_info *b, unsigned int win)
-{
- outb_p(FEPWIN | win, b->port + 1);
-}
-
-static void pcxe_memwinoff(struct board_info *b, unsigned int win)
-{
- outb_p(inb(b->port) & ~FEPMEM, b->port + 1);
- outb_p(0, b->port + 1);
-}
-
-static void pcxe_globalwinon(struct channel *ch)
-{
- outb_p(FEPWIN, (int)ch->board->port + 1);
-}
-
-static void pcxe_rxwinon(struct channel *ch)
-{
- outb_p(ch->rxwin, (int)ch->board->port + 1);
-}
-
-static void pcxe_txwinon(struct channel *ch)
-{
- outb_p(ch->txwin, (int)ch->board->port + 1);
-}
-
-static void pcxe_memoff(struct channel *ch)
-{
- outb_p(0, (int)ch->board->port);
- outb_p(0, (int)ch->board->port + 1);
-}
-
-/* ------------- Begin pc64xe and pcxi memory window stuff -------------- */
-static void pcxi_memwinon(struct board_info *b, unsigned int win)
-{
- outb_p(inb(b->port) | FEPMEM, b->port);
-}
-
-static void pcxi_memwinoff(struct board_info *b, unsigned int win)
-{
- outb_p(inb(b->port) & ~FEPMEM, b->port);
-}
-
-static void pcxi_globalwinon(struct channel *ch)
-{
- outb_p(FEPMEM, ch->board->port);
-}
-
-static void pcxi_rxwinon(struct channel *ch)
-{
- outb_p(FEPMEM, ch->board->port);
-}
-
-static void pcxi_txwinon(struct channel *ch)
-{
- outb_p(FEPMEM, ch->board->port);
-}
-
-static void pcxi_memoff(struct channel *ch)
-{
- outb_p(0, ch->board->port);
-}
-
-static void pcxi_assertgwinon(struct channel *ch)
-{
- epcaassert(inb(ch->board->port) & FEPMEM, "Global memory off");
-}
-
-static void pcxi_assertmemoff(struct channel *ch)
-{
- epcaassert(!(inb(ch->board->port) & FEPMEM), "Memory on");
-}
-
-/*
- * Not all of the cards need specific memory windowing routines. Some cards
- * (Such as PCI) needs no windowing routines at all. We provide these do
- * nothing routines so that the same code base can be used. The driver will
- * ALWAYS call a windowing routine if it thinks it needs to; regardless of the
- * card. However, dependent on the card the routine may or may not do anything.
- */
-static void dummy_memwinon(struct board_info *b, unsigned int win)
-{
-}
-
-static void dummy_memwinoff(struct board_info *b, unsigned int win)
-{
-}
-
-static void dummy_globalwinon(struct channel *ch)
-{
-}
-
-static void dummy_rxwinon(struct channel *ch)
-{
-}
-
-static void dummy_txwinon(struct channel *ch)
-{
-}
-
-static void dummy_memoff(struct channel *ch)
-{
-}
-
-static void dummy_assertgwinon(struct channel *ch)
-{
-}
-
-static void dummy_assertmemoff(struct channel *ch)
-{
-}
-
-static struct channel *verifyChannel(struct tty_struct *tty)
-{
- /*
- * This routine basically provides a sanity check. It insures that the
- * channel returned is within the proper range of addresses as well as
- * properly initialized. If some bogus info gets passed in
- * through tty->driver_data this should catch it.
- */
- if (tty) {
- struct channel *ch = tty->driver_data;
- if (ch >= &digi_channels[0] && ch < &digi_channels[nbdevs]) {
- if (ch->magic == EPCA_MAGIC)
- return ch;
- }
- }
- return NULL;
-}
-
-static void pc_sched_event(struct channel *ch, int event)
-{
- /*
- * We call this to schedule interrupt processing on some event. The
- * kernel sees our request and calls the related routine in OUR driver.
- */
- ch->event |= 1 << event;
- schedule_work(&ch->tqueue);
-}
-
-static void epca_error(int line, char *msg)
-{
- printk(KERN_ERR "epca_error (Digi): line = %d %s\n", line, msg);
-}
-
-static void pc_close(struct tty_struct *tty, struct file *filp)
-{
- struct channel *ch;
- struct tty_port *port;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch == NULL)
- return;
- port = &ch->port;
-
- if (tty_port_close_start(port, tty, filp) == 0)
- return;
-
- pc_flush_buffer(tty);
- shutdown(ch, tty);
-
- tty_port_close_end(port, tty);
- ch->event = 0; /* FIXME: review ch->event locking */
- tty_port_tty_set(port, NULL);
-}
-
-static void shutdown(struct channel *ch, struct tty_struct *tty)
-{
- unsigned long flags;
- struct board_chan __iomem *bc;
- struct tty_port *port = &ch->port;
-
- if (!(port->flags & ASYNC_INITIALIZED))
- return;
-
- spin_lock_irqsave(&epca_lock, flags);
-
- globalwinon(ch);
- bc = ch->brdchan;
-
- /*
- * In order for an event to be generated on the receipt of data the
- * idata flag must be set. Since we are shutting down, this is not
- * necessary clear this flag.
- */
- if (bc)
- writeb(0, &bc->idata);
-
- /* If we're a modem control device and HUPCL is on, drop RTS & DTR. */
- if (tty->termios->c_cflag & HUPCL) {
- ch->omodem &= ~(ch->m_rts | ch->m_dtr);
- fepcmd(ch, SETMODEM, 0, ch->m_dtr | ch->m_rts, 10, 1);
- }
- memoff(ch);
-
- /*
- * The channel has officialy been closed. The next time it is opened it
- * will have to reinitialized. Set a flag to indicate this.
- */
- /* Prevent future Digi programmed interrupts from coming active */
- port->flags &= ~ASYNC_INITIALIZED;
- spin_unlock_irqrestore(&epca_lock, flags);
-}
-
-static void pc_hangup(struct tty_struct *tty)
-{
- struct channel *ch;
-
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- pc_flush_buffer(tty);
- tty_ldisc_flush(tty);
- shutdown(ch, tty);
-
- ch->event = 0; /* FIXME: review locking of ch->event */
- tty_port_hangup(&ch->port);
- }
-}
-
-static int pc_write(struct tty_struct *tty,
- const unsigned char *buf, int bytesAvailable)
-{
- unsigned int head, tail;
- int dataLen;
- int size;
- int amountCopied;
- struct channel *ch;
- unsigned long flags;
- int remain;
- struct board_chan __iomem *bc;
-
- /*
- * pc_write is primarily called directly by the kernel routine
- * tty_write (Though it can also be called by put_char) found in
- * tty_io.c. pc_write is passed a line discipline buffer where the data
- * to be written out is stored. The line discipline implementation
- * itself is done at the kernel level and is not brought into the
- * driver.
- */
-
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch == NULL)
- return 0;
-
- /* Make a pointer to the channel data structure found on the board. */
- bc = ch->brdchan;
- size = ch->txbufsize;
- amountCopied = 0;
-
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
-
- head = readw(&bc->tin) & (size - 1);
- tail = readw(&bc->tout);
-
- if (tail != readw(&bc->tout))
- tail = readw(&bc->tout);
- tail &= (size - 1);
-
- if (head >= tail) {
- /* head has not wrapped */
- /*
- * remain (much like dataLen above) represents the total amount
- * of space available on the card for data. Here dataLen
- * represents the space existing between the head pointer and
- * the end of buffer. This is important because a memcpy cannot
- * be told to automatically wrap around when it hits the buffer
- * end.
- */
- dataLen = size - head;
- remain = size - (head - tail) - 1;
- } else {
- /* head has wrapped around */
- remain = tail - head - 1;
- dataLen = remain;
- }
- /*
- * Check the space on the card. If we have more data than space; reduce
- * the amount of data to fit the space.
- */
- bytesAvailable = min(remain, bytesAvailable);
- txwinon(ch);
- while (bytesAvailable > 0) {
- /* there is data to copy onto card */
-
- /*
- * If head is not wrapped, the below will make sure the first
- * data copy fills to the end of card buffer.
- */
- dataLen = min(bytesAvailable, dataLen);
- memcpy_toio(ch->txptr + head, buf, dataLen);
- buf += dataLen;
- head += dataLen;
- amountCopied += dataLen;
- bytesAvailable -= dataLen;
-
- if (head >= size) {
- head = 0;
- dataLen = tail;
- }
- }
- ch->statusflags |= TXBUSY;
- globalwinon(ch);
- writew(head, &bc->tin);
-
- if ((ch->statusflags & LOWWAIT) == 0) {
- ch->statusflags |= LOWWAIT;
- writeb(1, &bc->ilow);
- }
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- return amountCopied;
-}
-
-static int pc_write_room(struct tty_struct *tty)
-{
- int remain = 0;
- struct channel *ch;
- unsigned long flags;
- unsigned int head, tail;
- struct board_chan __iomem *bc;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
-
- bc = ch->brdchan;
- head = readw(&bc->tin) & (ch->txbufsize - 1);
- tail = readw(&bc->tout);
-
- if (tail != readw(&bc->tout))
- tail = readw(&bc->tout);
- /* Wrap tail if necessary */
- tail &= (ch->txbufsize - 1);
- remain = tail - head - 1;
- if (remain < 0)
- remain += ch->txbufsize;
-
- if (remain && (ch->statusflags & LOWWAIT) == 0) {
- ch->statusflags |= LOWWAIT;
- writeb(1, &bc->ilow);
- }
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- }
- /* Return how much room is left on card */
- return remain;
-}
-
-static int pc_chars_in_buffer(struct tty_struct *tty)
-{
- int chars;
- unsigned int ctail, head, tail;
- int remain;
- unsigned long flags;
- struct channel *ch;
- struct board_chan __iomem *bc;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch == NULL)
- return 0;
-
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
-
- bc = ch->brdchan;
- tail = readw(&bc->tout);
- head = readw(&bc->tin);
- ctail = readw(&ch->mailbox->cout);
-
- if (tail == head && readw(&ch->mailbox->cin) == ctail &&
- readb(&bc->tbusy) == 0)
- chars = 0;
- else { /* Begin if some space on the card has been used */
- head = readw(&bc->tin) & (ch->txbufsize - 1);
- tail &= (ch->txbufsize - 1);
- /*
- * The logic here is basically opposite of the above
- * pc_write_room here we are finding the amount of bytes in the
- * buffer filled. Not the amount of bytes empty.
- */
- remain = tail - head - 1;
- if (remain < 0)
- remain += ch->txbufsize;
- chars = (int)(ch->txbufsize - remain);
- /*
- * Make it possible to wakeup anything waiting for output in
- * tty_ioctl.c, etc.
- *
- * If not already set. Setup an event to indicate when the
- * transmit buffer empties.
- */
- if (!(ch->statusflags & EMPTYWAIT))
- setup_empty_event(tty, ch);
- } /* End if some space on the card has been used */
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- /* Return number of characters residing on card. */
- return chars;
-}
-
-static void pc_flush_buffer(struct tty_struct *tty)
-{
- unsigned int tail;
- unsigned long flags;
- struct channel *ch;
- struct board_chan __iomem *bc;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch == NULL)
- return;
-
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
- bc = ch->brdchan;
- tail = readw(&bc->tout);
- /* Have FEP move tout pointer; effectively flushing transmit buffer */
- fepcmd(ch, STOUT, (unsigned) tail, 0, 0, 0);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- tty_wakeup(tty);
-}
-
-static void pc_flush_chars(struct tty_struct *tty)
-{
- struct channel *ch;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- unsigned long flags;
- spin_lock_irqsave(&epca_lock, flags);
- /*
- * If not already set and the transmitter is busy setup an
- * event to indicate when the transmit empties.
- */
- if ((ch->statusflags & TXBUSY) &&
- !(ch->statusflags & EMPTYWAIT))
- setup_empty_event(tty, ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- }
-}
-
-static int epca_carrier_raised(struct tty_port *port)
-{
- struct channel *ch = container_of(port, struct channel, port);
- if (ch->imodem & ch->dcd)
- return 1;
- return 0;
-}
-
-static void epca_dtr_rts(struct tty_port *port, int onoff)
-{
-}
-
-static int pc_open(struct tty_struct *tty, struct file *filp)
-{
- struct channel *ch;
- struct tty_port *port;
- unsigned long flags;
- int line, retval, boardnum;
- struct board_chan __iomem *bc;
- unsigned int head;
-
- line = tty->index;
- if (line < 0 || line >= nbdevs)
- return -ENODEV;
-
- ch = &digi_channels[line];
- port = &ch->port;
- boardnum = ch->boardnum;
-
- /* Check status of board configured in system. */
-
- /*
- * I check to see if the epca_setup routine detected a user error. It
- * might be better to put this in pc_init, but for the moment it goes
- * here.
- */
- if (invalid_lilo_config) {
- if (setup_error_code & INVALID_BOARD_TYPE)
- printk(KERN_ERR "epca: pc_open: Invalid board type specified in kernel options.\n");
- if (setup_error_code & INVALID_NUM_PORTS)
- printk(KERN_ERR "epca: pc_open: Invalid number of ports specified in kernel options.\n");
- if (setup_error_code & INVALID_MEM_BASE)
- printk(KERN_ERR "epca: pc_open: Invalid board memory address specified in kernel options.\n");
- if (setup_error_code & INVALID_PORT_BASE)
- printk(KERN_ERR "epca; pc_open: Invalid board port address specified in kernel options.\n");
- if (setup_error_code & INVALID_BOARD_STATUS)
- printk(KERN_ERR "epca: pc_open: Invalid board status specified in kernel options.\n");
- if (setup_error_code & INVALID_ALTPIN)
- printk(KERN_ERR "epca: pc_open: Invalid board altpin specified in kernel options;\n");
- tty->driver_data = NULL; /* Mark this device as 'down' */
- return -ENODEV;
- }
- if (boardnum >= num_cards || boards[boardnum].status == DISABLED) {
- tty->driver_data = NULL; /* Mark this device as 'down' */
- return(-ENODEV);
- }
-
- bc = ch->brdchan;
- if (bc == NULL) {
- tty->driver_data = NULL;
- return -ENODEV;
- }
-
- spin_lock_irqsave(&port->lock, flags);
- /*
- * Every time a channel is opened, increment a counter. This is
- * necessary because we do not wish to flush and shutdown the channel
- * until the last app holding the channel open, closes it.
- */
- port->count++;
- /*
- * Set a kernel structures pointer to our local channel structure. This
- * way we can get to it when passed only a tty struct.
- */
- tty->driver_data = ch;
- port->tty = tty;
- /*
- * If this is the first time the channel has been opened, initialize
- * the tty->termios struct otherwise let pc_close handle it.
- */
- spin_lock(&epca_lock);
- globalwinon(ch);
- ch->statusflags = 0;
-
- /* Save boards current modem status */
- ch->imodem = readb(&bc->mstat);
-
- /*
- * Set receive head and tail ptrs to each other. This indicates no data
- * available to read.
- */
- head = readw(&bc->rin);
- writew(head, &bc->rout);
-
- /* Set the channels associated tty structure */
-
- /*
- * The below routine generally sets up parity, baud, flow control
- * issues, etc.... It effect both control flags and input flags.
- */
- epcaparam(tty, ch);
- memoff(ch);
- spin_unlock(&epca_lock);
- port->flags |= ASYNC_INITIALIZED;
- spin_unlock_irqrestore(&port->lock, flags);
-
- retval = tty_port_block_til_ready(port, tty, filp);
- if (retval)
- return retval;
- /*
- * Set this again in case a hangup set it to zero while this open() was
- * waiting for the line...
- */
- spin_lock_irqsave(&port->lock, flags);
- port->tty = tty;
- spin_lock(&epca_lock);
- globalwinon(ch);
- /* Enable Digi Data events */
- writeb(1, &bc->idata);
- memoff(ch);
- spin_unlock(&epca_lock);
- spin_unlock_irqrestore(&port->lock, flags);
- return 0;
-}
-
-static int __init epca_module_init(void)
-{
- return pc_init();
-}
-module_init(epca_module_init);
-
-static struct pci_driver epca_driver;
-
-static void __exit epca_module_exit(void)
-{
- int count, crd;
- struct board_info *bd;
- struct channel *ch;
-
- del_timer_sync(&epca_timer);
-
- if (tty_unregister_driver(pc_driver) ||
- tty_unregister_driver(pc_info)) {
- printk(KERN_WARNING "epca: cleanup_module failed to un-register tty driver\n");
- return;
- }
- put_tty_driver(pc_driver);
- put_tty_driver(pc_info);
-
- for (crd = 0; crd < num_cards; crd++) {
- bd = &boards[crd];
- if (!bd) { /* sanity check */
- printk(KERN_ERR "<Error> - Digi : cleanup_module failed\n");
- return;
- }
- ch = card_ptr[crd];
- for (count = 0; count < bd->numports; count++, ch++) {
- struct tty_struct *tty = tty_port_tty_get(&ch->port);
- if (tty) {
- tty_hangup(tty);
- tty_kref_put(tty);
- }
- }
- }
- pci_unregister_driver(&epca_driver);
-}
-module_exit(epca_module_exit);
-
-static const struct tty_operations pc_ops = {
- .open = pc_open,
- .close = pc_close,
- .write = pc_write,
- .write_room = pc_write_room,
- .flush_buffer = pc_flush_buffer,
- .chars_in_buffer = pc_chars_in_buffer,
- .flush_chars = pc_flush_chars,
- .ioctl = pc_ioctl,
- .set_termios = pc_set_termios,
- .stop = pc_stop,
- .start = pc_start,
- .throttle = pc_throttle,
- .unthrottle = pc_unthrottle,
- .hangup = pc_hangup,
- .break_ctl = pc_send_break
-};
-
-static const struct tty_port_operations epca_port_ops = {
- .carrier_raised = epca_carrier_raised,
- .dtr_rts = epca_dtr_rts,
-};
-
-static int info_open(struct tty_struct *tty, struct file *filp)
-{
- return 0;
-}
-
-static const struct tty_operations info_ops = {
- .open = info_open,
- .ioctl = info_ioctl,
-};
-
-static int __init pc_init(void)
-{
- int crd;
- struct board_info *bd;
- unsigned char board_id = 0;
- int err = -ENOMEM;
-
- int pci_boards_found, pci_count;
-
- pci_count = 0;
-
- pc_driver = alloc_tty_driver(MAX_ALLOC);
- if (!pc_driver)
- goto out1;
-
- pc_info = alloc_tty_driver(MAX_ALLOC);
- if (!pc_info)
- goto out2;
-
- /*
- * If epca_setup has not been ran by LILO set num_cards to defaults;
- * copy board structure defined by digiConfig into drivers board
- * structure. Note : If LILO has ran epca_setup then epca_setup will
- * handle defining num_cards as well as copying the data into the board
- * structure.
- */
- if (!liloconfig) {
- /* driver has been configured via. epcaconfig */
- nbdevs = NBDEVS;
- num_cards = NUMCARDS;
- memcpy(&boards, &static_boards,
- sizeof(struct board_info) * NUMCARDS);
- }
-
- /*
- * Note : If lilo was used to configure the driver and the ignore
- * epcaconfig option was choosen (digiepca=2) then nbdevs and num_cards
- * will equal 0 at this point. This is okay; PCI cards will still be
- * picked up if detected.
- */
-
- /*
- * Set up interrupt, we will worry about memory allocation in
- * post_fep_init.
- */
- printk(KERN_INFO "DIGI epca driver version %s loaded.\n", VERSION);
-
- /*
- * NOTE : This code assumes that the number of ports found in the
- * boards array is correct. This could be wrong if the card in question
- * is PCI (And therefore has no ports entry in the boards structure.)
- * The rest of the information will be valid for PCI because the
- * beginning of pc_init scans for PCI and determines i/o and base
- * memory addresses. I am not sure if it is possible to read the number
- * of ports supported by the card prior to it being booted (Since that
- * is the state it is in when pc_init is run). Because it is not
- * possible to query the number of supported ports until after the card
- * has booted; we are required to calculate the card_ptrs as the card
- * is initialized (Inside post_fep_init). The negative thing about this
- * approach is that digiDload's call to GET_INFO will have a bad port
- * value. (Since this is called prior to post_fep_init.)
- */
- pci_boards_found = 0;
- if (num_cards < MAXBOARDS)
- pci_boards_found += init_PCI();
- num_cards += pci_boards_found;
-
- pc_driver->owner = THIS_MODULE;
- pc_driver->name = "ttyD";
- pc_driver->major = DIGI_MAJOR;
- pc_driver->minor_start = 0;
- pc_driver->type = TTY_DRIVER_TYPE_SERIAL;
- pc_driver->subtype = SERIAL_TYPE_NORMAL;
- pc_driver->init_termios = tty_std_termios;
- pc_driver->init_termios.c_iflag = 0;
- pc_driver->init_termios.c_oflag = 0;
- pc_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
- pc_driver->init_termios.c_lflag = 0;
- pc_driver->init_termios.c_ispeed = 9600;
- pc_driver->init_termios.c_ospeed = 9600;
- pc_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_HARDWARE_BREAK;
- tty_set_operations(pc_driver, &pc_ops);
-
- pc_info->owner = THIS_MODULE;
- pc_info->name = "digi_ctl";
- pc_info->major = DIGIINFOMAJOR;
- pc_info->minor_start = 0;
- pc_info->type = TTY_DRIVER_TYPE_SERIAL;
- pc_info->subtype = SERIAL_TYPE_INFO;
- pc_info->init_termios = tty_std_termios;
- pc_info->init_termios.c_iflag = 0;
- pc_info->init_termios.c_oflag = 0;
- pc_info->init_termios.c_lflag = 0;
- pc_info->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL;
- pc_info->init_termios.c_ispeed = 9600;
- pc_info->init_termios.c_ospeed = 9600;
- pc_info->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(pc_info, &info_ops);
-
-
- for (crd = 0; crd < num_cards; crd++) {
- /*
- * This is where the appropriate memory handlers for the
- * hardware is set. Everything at runtime blindly jumps through
- * these vectors.
- */
-
- /* defined in epcaconfig.h */
- bd = &boards[crd];
-
- switch (bd->type) {
- case PCXEM:
- case EISAXEM:
- bd->memwinon = pcxem_memwinon;
- bd->memwinoff = pcxem_memwinoff;
- bd->globalwinon = pcxem_globalwinon;
- bd->txwinon = pcxem_txwinon;
- bd->rxwinon = pcxem_rxwinon;
- bd->memoff = pcxem_memoff;
- bd->assertgwinon = dummy_assertgwinon;
- bd->assertmemoff = dummy_assertmemoff;
- break;
-
- case PCIXEM:
- case PCIXRJ:
- case PCIXR:
- bd->memwinon = dummy_memwinon;
- bd->memwinoff = dummy_memwinoff;
- bd->globalwinon = dummy_globalwinon;
- bd->txwinon = dummy_txwinon;
- bd->rxwinon = dummy_rxwinon;
- bd->memoff = dummy_memoff;
- bd->assertgwinon = dummy_assertgwinon;
- bd->assertmemoff = dummy_assertmemoff;
- break;
-
- case PCXE:
- case PCXEVE:
- bd->memwinon = pcxe_memwinon;
- bd->memwinoff = pcxe_memwinoff;
- bd->globalwinon = pcxe_globalwinon;
- bd->txwinon = pcxe_txwinon;
- bd->rxwinon = pcxe_rxwinon;
- bd->memoff = pcxe_memoff;
- bd->assertgwinon = dummy_assertgwinon;
- bd->assertmemoff = dummy_assertmemoff;
- break;
-
- case PCXI:
- case PC64XE:
- bd->memwinon = pcxi_memwinon;
- bd->memwinoff = pcxi_memwinoff;
- bd->globalwinon = pcxi_globalwinon;
- bd->txwinon = pcxi_txwinon;
- bd->rxwinon = pcxi_rxwinon;
- bd->memoff = pcxi_memoff;
- bd->assertgwinon = pcxi_assertgwinon;
- bd->assertmemoff = pcxi_assertmemoff;
- break;
-
- default:
- break;
- }
-
- /*
- * Some cards need a memory segment to be defined for use in
- * transmit and receive windowing operations. These boards are
- * listed in the below switch. In the case of the XI the amount
- * of memory on the board is variable so the memory_seg is also
- * variable. This code determines what they segment should be.
- */
- switch (bd->type) {
- case PCXE:
- case PCXEVE:
- case PC64XE:
- bd->memory_seg = 0xf000;
- break;
-
- case PCXI:
- board_id = inb((int)bd->port);
- if ((board_id & 0x1) == 0x1) {
- /* it's an XI card */
- /* Is it a 64K board */
- if ((board_id & 0x30) == 0)
- bd->memory_seg = 0xf000;
-
- /* Is it a 128K board */
- if ((board_id & 0x30) == 0x10)
- bd->memory_seg = 0xe000;
-
- /* Is is a 256K board */
- if ((board_id & 0x30) == 0x20)
- bd->memory_seg = 0xc000;
-
- /* Is it a 512K board */
- if ((board_id & 0x30) == 0x30)
- bd->memory_seg = 0x8000;
- } else
- printk(KERN_ERR "epca: Board at 0x%x doesn't appear to be an XI\n", (int)bd->port);
- break;
- }
- }
-
- err = tty_register_driver(pc_driver);
- if (err) {
- printk(KERN_ERR "Couldn't register Digi PC/ driver");
- goto out3;
- }
-
- err = tty_register_driver(pc_info);
- if (err) {
- printk(KERN_ERR "Couldn't register Digi PC/ info ");
- goto out4;
- }
-
- /* Start up the poller to check for events on all enabled boards */
- init_timer(&epca_timer);
- epca_timer.function = epcapoll;
- mod_timer(&epca_timer, jiffies + HZ/25);
- return 0;
-
-out4:
- tty_unregister_driver(pc_driver);
-out3:
- put_tty_driver(pc_info);
-out2:
- put_tty_driver(pc_driver);
-out1:
- return err;
-}
-
-static void post_fep_init(unsigned int crd)
-{
- int i;
- void __iomem *memaddr;
- struct global_data __iomem *gd;
- struct board_info *bd;
- struct board_chan __iomem *bc;
- struct channel *ch;
- int shrinkmem = 0, lowwater;
-
- /*
- * This call is made by the user via. the ioctl call DIGI_INIT. It is
- * responsible for setting up all the card specific stuff.
- */
- bd = &boards[crd];
-
- /*
- * If this is a PCI board, get the port info. Remember PCI cards do not
- * have entries into the epcaconfig.h file, so we can't get the number
- * of ports from it. Unfortunetly, this means that anyone doing a
- * DIGI_GETINFO before the board has booted will get an invalid number
- * of ports returned (It should return 0). Calls to DIGI_GETINFO after
- * DIGI_INIT has been called will return the proper values.
- */
- if (bd->type >= PCIXEM) { /* Begin get PCI number of ports */
- /*
- * Below we use XEMPORTS as a memory offset regardless of which
- * PCI card it is. This is because all of the supported PCI
- * cards have the same memory offset for the channel data. This
- * will have to be changed if we ever develop a PCI/XE card.
- * NOTE : The FEP manual states that the port offset is 0xC22
- * as opposed to 0xC02. This is only true for PC/XE, and PC/XI
- * cards; not for the XEM, or CX series. On the PCI cards the
- * number of ports is determined by reading a ID PROM located
- * in the box attached to the card. The card can then determine
- * the index the id to determine the number of ports available.
- * (FYI - The id should be located at 0x1ac (And may use up to
- * 4 bytes if the box in question is a XEM or CX)).
- */
- /* PCI cards are already remapped at this point ISA are not */
- bd->numports = readw(bd->re_map_membase + XEMPORTS);
- epcaassert(bd->numports <= 64, "PCI returned a invalid number of ports");
- nbdevs += (bd->numports);
- } else {
- /* Fix up the mappings for ISA/EISA etc */
- /* FIXME: 64K - can we be smarter ? */
- bd->re_map_membase = ioremap_nocache(bd->membase, 0x10000);
- }
-
- if (crd != 0)
- card_ptr[crd] = card_ptr[crd-1] + boards[crd-1].numports;
- else
- card_ptr[crd] = &digi_channels[crd]; /* <- For card 0 only */
-
- ch = card_ptr[crd];
- epcaassert(ch <= &digi_channels[nbdevs - 1], "ch out of range");
-
- memaddr = bd->re_map_membase;
-
- /*
- * The below assignment will set bc to point at the BEGINING of the
- * cards channel structures. For 1 card there will be between 8 and 64
- * of these structures.
- */
- bc = memaddr + CHANSTRUCT;
-
- /*
- * The below assignment will set gd to point at the BEGINING of global
- * memory address 0xc00. The first data in that global memory actually
- * starts at address 0xc1a. The command in pointer begins at 0xd10.
- */
- gd = memaddr + GLOBAL;
-
- /*
- * XEPORTS (address 0xc22) points at the number of channels the card
- * supports. (For 64XE, XI, XEM, and XR use 0xc02)
- */
- if ((bd->type == PCXEVE || bd->type == PCXE) &&
- (readw(memaddr + XEPORTS) < 3))
- shrinkmem = 1;
- if (bd->type < PCIXEM)
- if (!request_region((int)bd->port, 4, board_desc[bd->type]))
- return;
- memwinon(bd, 0);
-
- /*
- * Remember ch is the main drivers channels structure, while bc is the
- * cards channel structure.
- */
- for (i = 0; i < bd->numports; i++, ch++, bc++) {
- unsigned long flags;
- u16 tseg, rseg;
-
- tty_port_init(&ch->port);
- ch->port.ops = &epca_port_ops;
- ch->brdchan = bc;
- ch->mailbox = gd;
- INIT_WORK(&ch->tqueue, do_softint);
- ch->board = &boards[crd];
-
- spin_lock_irqsave(&epca_lock, flags);
- switch (bd->type) {
- /*
- * Since some of the boards use different bitmaps for
- * their control signals we cannot hard code these
- * values and retain portability. We virtualize this
- * data here.
- */
- case EISAXEM:
- case PCXEM:
- case PCIXEM:
- case PCIXRJ:
- case PCIXR:
- ch->m_rts = 0x02;
- ch->m_dcd = 0x80;
- ch->m_dsr = 0x20;
- ch->m_cts = 0x10;
- ch->m_ri = 0x40;
- ch->m_dtr = 0x01;
- break;
-
- case PCXE:
- case PCXEVE:
- case PCXI:
- case PC64XE:
- ch->m_rts = 0x02;
- ch->m_dcd = 0x08;
- ch->m_dsr = 0x10;
- ch->m_cts = 0x20;
- ch->m_ri = 0x40;
- ch->m_dtr = 0x80;
- break;
- }
-
- if (boards[crd].altpin) {
- ch->dsr = ch->m_dcd;
- ch->dcd = ch->m_dsr;
- ch->digiext.digi_flags |= DIGI_ALTPIN;
- } else {
- ch->dcd = ch->m_dcd;
- ch->dsr = ch->m_dsr;
- }
-
- ch->boardnum = crd;
- ch->channelnum = i;
- ch->magic = EPCA_MAGIC;
- tty_port_tty_set(&ch->port, NULL);
-
- if (shrinkmem) {
- fepcmd(ch, SETBUFFER, 32, 0, 0, 0);
- shrinkmem = 0;
- }
-
- tseg = readw(&bc->tseg);
- rseg = readw(&bc->rseg);
-
- switch (bd->type) {
- case PCIXEM:
- case PCIXRJ:
- case PCIXR:
- /* Cover all the 2MEG cards */
- ch->txptr = memaddr + ((tseg << 4) & 0x1fffff);
- ch->rxptr = memaddr + ((rseg << 4) & 0x1fffff);
- ch->txwin = FEPWIN | (tseg >> 11);
- ch->rxwin = FEPWIN | (rseg >> 11);
- break;
-
- case PCXEM:
- case EISAXEM:
- /* Cover all the 32K windowed cards */
- /* Mask equal to window size - 1 */
- ch->txptr = memaddr + ((tseg << 4) & 0x7fff);
- ch->rxptr = memaddr + ((rseg << 4) & 0x7fff);
- ch->txwin = FEPWIN | (tseg >> 11);
- ch->rxwin = FEPWIN | (rseg >> 11);
- break;
-
- case PCXEVE:
- case PCXE:
- ch->txptr = memaddr + (((tseg - bd->memory_seg) << 4)
- & 0x1fff);
- ch->txwin = FEPWIN | ((tseg - bd->memory_seg) >> 9);
- ch->rxptr = memaddr + (((rseg - bd->memory_seg) << 4)
- & 0x1fff);
- ch->rxwin = FEPWIN | ((rseg - bd->memory_seg) >> 9);
- break;
-
- case PCXI:
- case PC64XE:
- ch->txptr = memaddr + ((tseg - bd->memory_seg) << 4);
- ch->rxptr = memaddr + ((rseg - bd->memory_seg) << 4);
- ch->txwin = ch->rxwin = 0;
- break;
- }
-
- ch->txbufhead = 0;
- ch->txbufsize = readw(&bc->tmax) + 1;
-
- ch->rxbufhead = 0;
- ch->rxbufsize = readw(&bc->rmax) + 1;
-
- lowwater = ch->txbufsize >= 2000 ? 1024 : (ch->txbufsize / 2);
-
- /* Set transmitter low water mark */
- fepcmd(ch, STXLWATER, lowwater, 0, 10, 0);
-
- /* Set receiver low water mark */
- fepcmd(ch, SRXLWATER, (ch->rxbufsize / 4), 0, 10, 0);
-
- /* Set receiver high water mark */
- fepcmd(ch, SRXHWATER, (3 * ch->rxbufsize / 4), 0, 10, 0);
-
- writew(100, &bc->edelay);
- writeb(1, &bc->idata);
-
- ch->startc = readb(&bc->startc);
- ch->stopc = readb(&bc->stopc);
- ch->startca = readb(&bc->startca);
- ch->stopca = readb(&bc->stopca);
-
- ch->fepcflag = 0;
- ch->fepiflag = 0;
- ch->fepoflag = 0;
- ch->fepstartc = 0;
- ch->fepstopc = 0;
- ch->fepstartca = 0;
- ch->fepstopca = 0;
-
- ch->port.close_delay = 50;
-
- spin_unlock_irqrestore(&epca_lock, flags);
- }
-
- printk(KERN_INFO
- "Digi PC/Xx Driver V%s: %s I/O = 0x%lx Mem = 0x%lx Ports = %d\n",
- VERSION, board_desc[bd->type], (long)bd->port,
- (long)bd->membase, bd->numports);
- memwinoff(bd, 0);
-}
-
-static void epcapoll(unsigned long ignored)
-{
- unsigned long flags;
- int crd;
- unsigned int head, tail;
- struct channel *ch;
- struct board_info *bd;
-
- /*
- * This routine is called upon every timer interrupt. Even though the
- * Digi series cards are capable of generating interrupts this method
- * of non-looping polling is more efficient. This routine checks for
- * card generated events (Such as receive data, are transmit buffer
- * empty) and acts on those events.
- */
- for (crd = 0; crd < num_cards; crd++) {
- bd = &boards[crd];
- ch = card_ptr[crd];
-
- if ((bd->status == DISABLED) || digi_poller_inhibited)
- continue;
-
- /*
- * assertmemoff is not needed here; indeed it is an empty
- * subroutine. It is being kept because future boards may need
- * this as well as some legacy boards.
- */
- spin_lock_irqsave(&epca_lock, flags);
-
- assertmemoff(ch);
-
- globalwinon(ch);
-
- /*
- * In this case head and tail actually refer to the event queue
- * not the transmit or receive queue.
- */
- head = readw(&ch->mailbox->ein);
- tail = readw(&ch->mailbox->eout);
-
- /* If head isn't equal to tail we have an event */
- if (head != tail)
- doevent(crd);
- memoff(ch);
-
- spin_unlock_irqrestore(&epca_lock, flags);
- } /* End for each card */
- mod_timer(&epca_timer, jiffies + (HZ / 25));
-}
-
-static void doevent(int crd)
-{
- void __iomem *eventbuf;
- struct channel *ch, *chan0;
- static struct tty_struct *tty;
- struct board_info *bd;
- struct board_chan __iomem *bc;
- unsigned int tail, head;
- int event, channel;
- int mstat, lstat;
-
- /*
- * This subroutine is called by epcapoll when an event is detected
- * in the event queue. This routine responds to those events.
- */
- bd = &boards[crd];
-
- chan0 = card_ptr[crd];
- epcaassert(chan0 <= &digi_channels[nbdevs - 1], "ch out of range");
- assertgwinon(chan0);
- while ((tail = readw(&chan0->mailbox->eout)) !=
- (head = readw(&chan0->mailbox->ein))) {
- /* Begin while something in event queue */
- assertgwinon(chan0);
- eventbuf = bd->re_map_membase + tail + ISTART;
- /* Get the channel the event occurred on */
- channel = readb(eventbuf);
- /* Get the actual event code that occurred */
- event = readb(eventbuf + 1);
- /*
- * The two assignments below get the current modem status
- * (mstat) and the previous modem status (lstat). These are
- * useful becuase an event could signal a change in modem
- * signals itself.
- */
- mstat = readb(eventbuf + 2);
- lstat = readb(eventbuf + 3);
-
- ch = chan0 + channel;
- if ((unsigned)channel >= bd->numports || !ch) {
- if (channel >= bd->numports)
- ch = chan0;
- bc = ch->brdchan;
- goto next;
- }
-
- bc = ch->brdchan;
- if (bc == NULL)
- goto next;
-
- tty = tty_port_tty_get(&ch->port);
- if (event & DATA_IND) { /* Begin DATA_IND */
- receive_data(ch, tty);
- assertgwinon(ch);
- } /* End DATA_IND */
- /* else *//* Fix for DCD transition missed bug */
- if (event & MODEMCHG_IND) {
- /* A modem signal change has been indicated */
- ch->imodem = mstat;
- if (test_bit(ASYNCB_CHECK_CD, &ch->port.flags)) {
- /* We are now receiving dcd */
- if (mstat & ch->dcd)
- wake_up_interruptible(&ch->port.open_wait);
- else /* No dcd; hangup */
- pc_sched_event(ch, EPCA_EVENT_HANGUP);
- }
- }
- if (tty) {
- if (event & BREAK_IND) {
- /* A break has been indicated */
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- tty_schedule_flip(tty);
- } else if (event & LOWTX_IND) {
- if (ch->statusflags & LOWWAIT) {
- ch->statusflags &= ~LOWWAIT;
- tty_wakeup(tty);
- }
- } else if (event & EMPTYTX_IND) {
- /* This event is generated by
- setup_empty_event */
- ch->statusflags &= ~TXBUSY;
- if (ch->statusflags & EMPTYWAIT) {
- ch->statusflags &= ~EMPTYWAIT;
- tty_wakeup(tty);
- }
- }
- tty_kref_put(tty);
- }
-next:
- globalwinon(ch);
- BUG_ON(!bc);
- writew(1, &bc->idata);
- writew((tail + 4) & (IMAX - ISTART - 4), &chan0->mailbox->eout);
- globalwinon(chan0);
- } /* End while something in event queue */
-}
-
-static void fepcmd(struct channel *ch, int cmd, int word_or_byte,
- int byte2, int ncmds, int bytecmd)
-{
- unchar __iomem *memaddr;
- unsigned int head, cmdTail, cmdStart, cmdMax;
- long count;
- int n;
-
- /* This is the routine in which commands may be passed to the card. */
-
- if (ch->board->status == DISABLED)
- return;
- assertgwinon(ch);
- /* Remember head (As well as max) is just an offset not a base addr */
- head = readw(&ch->mailbox->cin);
- /* cmdStart is a base address */
- cmdStart = readw(&ch->mailbox->cstart);
- /*
- * We do the addition below because we do not want a max pointer
- * relative to cmdStart. We want a max pointer that points at the
- * physical end of the command queue.
- */
- cmdMax = (cmdStart + 4 + readw(&ch->mailbox->cmax));
- memaddr = ch->board->re_map_membase;
-
- if (head >= (cmdMax - cmdStart) || (head & 03)) {
- printk(KERN_ERR "line %d: Out of range, cmd = %x, head = %x\n",
- __LINE__, cmd, head);
- printk(KERN_ERR "line %d: Out of range, cmdMax = %x, cmdStart = %x\n",
- __LINE__, cmdMax, cmdStart);
- return;
- }
- if (bytecmd) {
- writeb(cmd, memaddr + head + cmdStart + 0);
- writeb(ch->channelnum, memaddr + head + cmdStart + 1);
- /* Below word_or_byte is bits to set */
- writeb(word_or_byte, memaddr + head + cmdStart + 2);
- /* Below byte2 is bits to reset */
- writeb(byte2, memaddr + head + cmdStart + 3);
- } else {
- writeb(cmd, memaddr + head + cmdStart + 0);
- writeb(ch->channelnum, memaddr + head + cmdStart + 1);
- writeb(word_or_byte, memaddr + head + cmdStart + 2);
- }
- head = (head + 4) & (cmdMax - cmdStart - 4);
- writew(head, &ch->mailbox->cin);
- count = FEPTIMEOUT;
-
- for (;;) {
- count--;
- if (count == 0) {
- printk(KERN_ERR "<Error> - Fep not responding in fepcmd()\n");
- return;
- }
- head = readw(&ch->mailbox->cin);
- cmdTail = readw(&ch->mailbox->cout);
- n = (head - cmdTail) & (cmdMax - cmdStart - 4);
- /*
- * Basically this will break when the FEP acknowledges the
- * command by incrementing cmdTail (Making it equal to head).
- */
- if (n <= ncmds * (sizeof(short) * 4))
- break;
- }
-}
-
-/*
- * Digi products use fields in their channels structures that are very similar
- * to the c_cflag and c_iflag fields typically found in UNIX termios
- * structures. The below three routines allow mappings between these hardware
- * "flags" and their respective Linux flags.
- */
-static unsigned termios2digi_h(struct channel *ch, unsigned cflag)
-{
- unsigned res = 0;
-
- if (cflag & CRTSCTS) {
- ch->digiext.digi_flags |= (RTSPACE | CTSPACE);
- res |= ((ch->m_cts) | (ch->m_rts));
- }
-
- if (ch->digiext.digi_flags & RTSPACE)
- res |= ch->m_rts;
-
- if (ch->digiext.digi_flags & DTRPACE)
- res |= ch->m_dtr;
-
- if (ch->digiext.digi_flags & CTSPACE)
- res |= ch->m_cts;
-
- if (ch->digiext.digi_flags & DSRPACE)
- res |= ch->dsr;
-
- if (ch->digiext.digi_flags & DCDPACE)
- res |= ch->dcd;
-
- if (res & (ch->m_rts))
- ch->digiext.digi_flags |= RTSPACE;
-
- if (res & (ch->m_cts))
- ch->digiext.digi_flags |= CTSPACE;
-
- return res;
-}
-
-static unsigned termios2digi_i(struct channel *ch, unsigned iflag)
-{
- unsigned res = iflag & (IGNBRK | BRKINT | IGNPAR | PARMRK |
- INPCK | ISTRIP | IXON | IXANY | IXOFF);
- if (ch->digiext.digi_flags & DIGI_AIXON)
- res |= IAIXON;
- return res;
-}
-
-static unsigned termios2digi_c(struct channel *ch, unsigned cflag)
-{
- unsigned res = 0;
- if (cflag & CBAUDEX) {
- ch->digiext.digi_flags |= DIGI_FAST;
- /*
- * HUPCL bit is used by FEP to indicate fast baud table is to
- * be used.
- */
- res |= FEP_HUPCL;
- } else
- ch->digiext.digi_flags &= ~DIGI_FAST;
- /*
- * CBAUD has bit position 0x1000 set these days to indicate Linux
- * baud rate remap. Digi hardware can't handle the bit assignment.
- * (We use a different bit assignment for high speed.). Clear this
- * bit out.
- */
- res |= cflag & ((CBAUD ^ CBAUDEX) | PARODD | PARENB | CSTOPB | CSIZE);
- /*
- * This gets a little confusing. The Digi cards have their own
- * representation of c_cflags controlling baud rate. For the most part
- * this is identical to the Linux implementation. However; Digi
- * supports one rate (76800) that Linux doesn't. This means that the
- * c_cflag entry that would normally mean 76800 for Digi actually means
- * 115200 under Linux. Without the below mapping, a stty 115200 would
- * only drive the board at 76800. Since the rate 230400 is also found
- * after 76800, the same problem afflicts us when we choose a rate of
- * 230400. Without the below modificiation stty 230400 would actually
- * give us 115200.
- *
- * There are two additional differences. The Linux value for CLOCAL
- * (0x800; 0004000) has no meaning to the Digi hardware. Also in later
- * releases of Linux; the CBAUD define has CBAUDEX (0x1000; 0010000)
- * ored into it (CBAUD = 0x100f as opposed to 0xf). CBAUDEX should be
- * checked for a screened out prior to termios2digi_c returning. Since
- * CLOCAL isn't used by the board this can be ignored as long as the
- * returned value is used only by Digi hardware.
- */
- if (cflag & CBAUDEX) {
- /*
- * The below code is trying to guarantee that only baud rates
- * 115200 and 230400 are remapped. We use exclusive or because
- * the various baud rates share common bit positions and
- * therefore can't be tested for easily.
- */
- if ((!((cflag & 0x7) ^ (B115200 & ~CBAUDEX))) ||
- (!((cflag & 0x7) ^ (B230400 & ~CBAUDEX))))
- res += 1;
- }
- return res;
-}
-
-/* Caller must hold the locks */
-static void epcaparam(struct tty_struct *tty, struct channel *ch)
-{
- unsigned int cmdHead;
- struct ktermios *ts;
- struct board_chan __iomem *bc;
- unsigned mval, hflow, cflag, iflag;
-
- bc = ch->brdchan;
- epcaassert(bc != NULL, "bc out of range");
-
- assertgwinon(ch);
- ts = tty->termios;
- if ((ts->c_cflag & CBAUD) == 0) { /* Begin CBAUD detected */
- cmdHead = readw(&bc->rin);
- writew(cmdHead, &bc->rout);
- cmdHead = readw(&bc->tin);
- /* Changing baud in mid-stream transmission can be wonderful */
- /*
- * Flush current transmit buffer by setting cmdTail pointer
- * (tout) to cmdHead pointer (tin). Hopefully the transmit
- * buffer is empty.
- */
- fepcmd(ch, STOUT, (unsigned) cmdHead, 0, 0, 0);
- mval = 0;
- } else { /* Begin CBAUD not detected */
- /*
- * c_cflags have changed but that change had nothing to do with
- * BAUD. Propagate the change to the card.
- */
- cflag = termios2digi_c(ch, ts->c_cflag);
- if (cflag != ch->fepcflag) {
- ch->fepcflag = cflag;
- /* Set baud rate, char size, stop bits, parity */
- fepcmd(ch, SETCTRLFLAGS, (unsigned) cflag, 0, 0, 0);
- }
- /*
- * If the user has not forced CLOCAL and if the device is not a
- * CALLOUT device (Which is always CLOCAL) we set flags such
- * that the driver will wait on carrier detect.
- */
- if (ts->c_cflag & CLOCAL)
- clear_bit(ASYNCB_CHECK_CD, &ch->port.flags);
- else
- set_bit(ASYNCB_CHECK_CD, &ch->port.flags);
- mval = ch->m_dtr | ch->m_rts;
- } /* End CBAUD not detected */
- iflag = termios2digi_i(ch, ts->c_iflag);
- /* Check input mode flags */
- if (iflag != ch->fepiflag) {
- ch->fepiflag = iflag;
- /*
- * Command sets channels iflag structure on the board. Such
- * things as input soft flow control, handling of parity
- * errors, and break handling are all set here.
- *
- * break handling, parity handling, input stripping,
- * flow control chars
- */
- fepcmd(ch, SETIFLAGS, (unsigned int) ch->fepiflag, 0, 0, 0);
- }
- /*
- * Set the board mint value for this channel. This will cause hardware
- * events to be generated each time the DCD signal (Described in mint)
- * changes.
- */
- writeb(ch->dcd, &bc->mint);
- if ((ts->c_cflag & CLOCAL) || (ch->digiext.digi_flags & DIGI_FORCEDCD))
- if (ch->digiext.digi_flags & DIGI_FORCEDCD)
- writeb(0, &bc->mint);
- ch->imodem = readb(&bc->mstat);
- hflow = termios2digi_h(ch, ts->c_cflag);
- if (hflow != ch->hflow) {
- ch->hflow = hflow;
- /*
- * Hard flow control has been selected but the board is not
- * using it. Activate hard flow control now.
- */
- fepcmd(ch, SETHFLOW, hflow, 0xff, 0, 1);
- }
- mval ^= ch->modemfake & (mval ^ ch->modem);
-
- if (ch->omodem ^ mval) {
- ch->omodem = mval;
- /*
- * The below command sets the DTR and RTS mstat structure. If
- * hard flow control is NOT active these changes will drive the
- * output of the actual DTR and RTS lines. If hard flow control
- * is active, the changes will be saved in the mstat structure
- * and only asserted when hard flow control is turned off.
- */
-
- /* First reset DTR & RTS; then set them */
- fepcmd(ch, SETMODEM, 0, ((ch->m_dtr)|(ch->m_rts)), 0, 1);
- fepcmd(ch, SETMODEM, mval, 0, 0, 1);
- }
- if (ch->startc != ch->fepstartc || ch->stopc != ch->fepstopc) {
- ch->fepstartc = ch->startc;
- ch->fepstopc = ch->stopc;
- /*
- * The XON / XOFF characters have changed; propagate these
- * changes to the card.
- */
- fepcmd(ch, SONOFFC, ch->fepstartc, ch->fepstopc, 0, 1);
- }
- if (ch->startca != ch->fepstartca || ch->stopca != ch->fepstopca) {
- ch->fepstartca = ch->startca;
- ch->fepstopca = ch->stopca;
- /*
- * Similar to the above, this time the auxilarly XON / XOFF
- * characters have changed; propagate these changes to the card.
- */
- fepcmd(ch, SAUXONOFFC, ch->fepstartca, ch->fepstopca, 0, 1);
- }
-}
-
-/* Caller holds lock */
-static void receive_data(struct channel *ch, struct tty_struct *tty)
-{
- unchar *rptr;
- struct ktermios *ts = NULL;
- struct board_chan __iomem *bc;
- int dataToRead, wrapgap, bytesAvailable;
- unsigned int tail, head;
- unsigned int wrapmask;
-
- /*
- * This routine is called by doint when a receive data event has taken
- * place.
- */
- globalwinon(ch);
- if (ch->statusflags & RXSTOPPED)
- return;
- if (tty)
- ts = tty->termios;
- bc = ch->brdchan;
- BUG_ON(!bc);
- wrapmask = ch->rxbufsize - 1;
-
- /*
- * Get the head and tail pointers to the receiver queue. Wrap the head
- * pointer if it has reached the end of the buffer.
- */
- head = readw(&bc->rin);
- head &= wrapmask;
- tail = readw(&bc->rout) & wrapmask;
-
- bytesAvailable = (head - tail) & wrapmask;
- if (bytesAvailable == 0)
- return;
-
- /* If CREAD bit is off or device not open, set TX tail to head */
- if (!tty || !ts || !(ts->c_cflag & CREAD)) {
- writew(head, &bc->rout);
- return;
- }
-
- if (tty_buffer_request_room(tty, bytesAvailable + 1) == 0)
- return;
-
- if (readb(&bc->orun)) {
- writeb(0, &bc->orun);
- printk(KERN_WARNING "epca; overrun! DigiBoard device %s\n",
- tty->name);
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- }
- rxwinon(ch);
- while (bytesAvailable > 0) {
- /* Begin while there is data on the card */
- wrapgap = (head >= tail) ? head - tail : ch->rxbufsize - tail;
- /*
- * Even if head has wrapped around only report the amount of
- * data to be equal to the size - tail. Remember memcpy can't
- * automaticly wrap around the receive buffer.
- */
- dataToRead = (wrapgap < bytesAvailable) ? wrapgap
- : bytesAvailable;
- /* Make sure we don't overflow the buffer */
- dataToRead = tty_prepare_flip_string(tty, &rptr, dataToRead);
- if (dataToRead == 0)
- break;
- /*
- * Move data read from our card into the line disciplines
- * buffer for translation if necessary.
- */
- memcpy_fromio(rptr, ch->rxptr + tail, dataToRead);
- tail = (tail + dataToRead) & wrapmask;
- bytesAvailable -= dataToRead;
- } /* End while there is data on the card */
- globalwinon(ch);
- writew(tail, &bc->rout);
- /* Must be called with global data */
- tty_schedule_flip(tty);
-}
-
-static int info_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- switch (cmd) {
- case DIGI_GETINFO:
- {
- struct digi_info di;
- int brd;
-
- if (get_user(brd, (unsigned int __user *)arg))
- return -EFAULT;
- if (brd < 0 || brd >= num_cards || num_cards == 0)
- return -ENODEV;
-
- memset(&di, 0, sizeof(di));
-
- di.board = brd;
- di.status = boards[brd].status;
- di.type = boards[brd].type ;
- di.numports = boards[brd].numports ;
- /* Legacy fixups - just move along nothing to see */
- di.port = (unsigned char *)boards[brd].port ;
- di.membase = (unsigned char *)boards[brd].membase ;
-
- if (copy_to_user((void __user *)arg, &di, sizeof(di)))
- return -EFAULT;
- break;
-
- }
-
- case DIGI_POLLER:
- {
- int brd = arg & 0xff000000 >> 16;
- unsigned char state = arg & 0xff;
-
- if (brd < 0 || brd >= num_cards) {
- printk(KERN_ERR "epca: DIGI POLLER : brd not valid!\n");
- return -ENODEV;
- }
- digi_poller_inhibited = state;
- break;
- }
-
- case DIGI_INIT:
- {
- /*
- * This call is made by the apps to complete the
- * initialization of the board(s). This routine is
- * responsible for setting the card to its initial
- * state and setting the drivers control fields to the
- * sutianle settings for the card in question.
- */
- int crd;
- for (crd = 0; crd < num_cards; crd++)
- post_fep_init(crd);
- break;
- }
- default:
- return -ENOTTY;
- }
- return 0;
-}
-
-static int pc_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct channel *ch = tty->driver_data;
- struct board_chan __iomem *bc;
- unsigned int mstat, mflag = 0;
- unsigned long flags;
-
- if (ch)
- bc = ch->brdchan;
- else
- return -EINVAL;
-
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
- mstat = readb(&bc->mstat);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
-
- if (mstat & ch->m_dtr)
- mflag |= TIOCM_DTR;
- if (mstat & ch->m_rts)
- mflag |= TIOCM_RTS;
- if (mstat & ch->m_cts)
- mflag |= TIOCM_CTS;
- if (mstat & ch->dsr)
- mflag |= TIOCM_DSR;
- if (mstat & ch->m_ri)
- mflag |= TIOCM_RI;
- if (mstat & ch->dcd)
- mflag |= TIOCM_CD;
- return mflag;
-}
-
-static int pc_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct channel *ch = tty->driver_data;
- unsigned long flags;
-
- if (!ch)
- return -EINVAL;
-
- spin_lock_irqsave(&epca_lock, flags);
- /*
- * I think this modemfake stuff is broken. It doesn't correctly reflect
- * the behaviour desired by the TIOCM* ioctls. Therefore this is
- * probably broken.
- */
- if (set & TIOCM_RTS) {
- ch->modemfake |= ch->m_rts;
- ch->modem |= ch->m_rts;
- }
- if (set & TIOCM_DTR) {
- ch->modemfake |= ch->m_dtr;
- ch->modem |= ch->m_dtr;
- }
- if (clear & TIOCM_RTS) {
- ch->modemfake |= ch->m_rts;
- ch->modem &= ~ch->m_rts;
- }
- if (clear & TIOCM_DTR) {
- ch->modemfake |= ch->m_dtr;
- ch->modem &= ~ch->m_dtr;
- }
- globalwinon(ch);
- /*
- * The below routine generally sets up parity, baud, flow control
- * issues, etc.... It effect both control flags and input flags.
- */
- epcaparam(tty, ch);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- return 0;
-}
-
-static int pc_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- digiflow_t dflow;
- unsigned long flags;
- unsigned int mflag, mstat;
- unsigned char startc, stopc;
- struct board_chan __iomem *bc;
- struct channel *ch = tty->driver_data;
- void __user *argp = (void __user *)arg;
-
- if (ch)
- bc = ch->brdchan;
- else
- return -EINVAL;
- switch (cmd) {
- case TIOCMODG:
- mflag = pc_tiocmget(tty, file);
- if (put_user(mflag, (unsigned long __user *)argp))
- return -EFAULT;
- break;
- case TIOCMODS:
- if (get_user(mstat, (unsigned __user *)argp))
- return -EFAULT;
- return pc_tiocmset(tty, file, mstat, ~mstat);
- case TIOCSDTR:
- spin_lock_irqsave(&epca_lock, flags);
- ch->omodem |= ch->m_dtr;
- globalwinon(ch);
- fepcmd(ch, SETMODEM, ch->m_dtr, 0, 10, 1);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- break;
-
- case TIOCCDTR:
- spin_lock_irqsave(&epca_lock, flags);
- ch->omodem &= ~ch->m_dtr;
- globalwinon(ch);
- fepcmd(ch, SETMODEM, 0, ch->m_dtr, 10, 1);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- break;
- case DIGI_GETA:
- if (copy_to_user(argp, &ch->digiext, sizeof(digi_t)))
- return -EFAULT;
- break;
- case DIGI_SETAW:
- case DIGI_SETAF:
- if (cmd == DIGI_SETAW) {
- /* Setup an event to indicate when the transmit
- buffer empties */
- spin_lock_irqsave(&epca_lock, flags);
- setup_empty_event(tty, ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- tty_wait_until_sent(tty, 0);
- } else {
- /* ldisc lock already held in ioctl */
- if (tty->ldisc->ops->flush_buffer)
- tty->ldisc->ops->flush_buffer(tty);
- }
- /* Fall Thru */
- case DIGI_SETA:
- if (copy_from_user(&ch->digiext, argp, sizeof(digi_t)))
- return -EFAULT;
-
- if (ch->digiext.digi_flags & DIGI_ALTPIN) {
- ch->dcd = ch->m_dsr;
- ch->dsr = ch->m_dcd;
- } else {
- ch->dcd = ch->m_dcd;
- ch->dsr = ch->m_dsr;
- }
-
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
-
- /*
- * The below routine generally sets up parity, baud, flow
- * control issues, etc.... It effect both control flags and
- * input flags.
- */
- epcaparam(tty, ch);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- break;
-
- case DIGI_GETFLOW:
- case DIGI_GETAFLOW:
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
- if (cmd == DIGI_GETFLOW) {
- dflow.startc = readb(&bc->startc);
- dflow.stopc = readb(&bc->stopc);
- } else {
- dflow.startc = readb(&bc->startca);
- dflow.stopc = readb(&bc->stopca);
- }
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
-
- if (copy_to_user(argp, &dflow, sizeof(dflow)))
- return -EFAULT;
- break;
-
- case DIGI_SETAFLOW:
- case DIGI_SETFLOW:
- if (cmd == DIGI_SETFLOW) {
- startc = ch->startc;
- stopc = ch->stopc;
- } else {
- startc = ch->startca;
- stopc = ch->stopca;
- }
-
- if (copy_from_user(&dflow, argp, sizeof(dflow)))
- return -EFAULT;
-
- if (dflow.startc != startc || dflow.stopc != stopc) {
- /* Begin if setflow toggled */
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
-
- if (cmd == DIGI_SETFLOW) {
- ch->fepstartc = ch->startc = dflow.startc;
- ch->fepstopc = ch->stopc = dflow.stopc;
- fepcmd(ch, SONOFFC, ch->fepstartc,
- ch->fepstopc, 0, 1);
- } else {
- ch->fepstartca = ch->startca = dflow.startc;
- ch->fepstopca = ch->stopca = dflow.stopc;
- fepcmd(ch, SAUXONOFFC, ch->fepstartca,
- ch->fepstopca, 0, 1);
- }
-
- if (ch->statusflags & TXSTOPPED)
- pc_start(tty);
-
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- } /* End if setflow toggled */
- break;
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static void pc_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct channel *ch;
- unsigned long flags;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
-
- if (ch != NULL) { /* Begin if channel valid */
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
- epcaparam(tty, ch);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- ((tty->termios->c_cflag & CRTSCTS) == 0))
- tty->hw_stopped = 0;
-
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&ch->port.open_wait);
-
- } /* End if channel valid */
-}
-
-static void do_softint(struct work_struct *work)
-{
- struct channel *ch = container_of(work, struct channel, tqueue);
- /* Called in response to a modem change event */
- if (ch && ch->magic == EPCA_MAGIC) {
- struct tty_struct *tty = tty_port_tty_get(&ch->port);
-
- if (tty && tty->driver_data) {
- if (test_and_clear_bit(EPCA_EVENT_HANGUP, &ch->event)) {
- tty_hangup(tty);
- wake_up_interruptible(&ch->port.open_wait);
- clear_bit(ASYNCB_NORMAL_ACTIVE,
- &ch->port.flags);
- }
- }
- tty_kref_put(tty);
- }
-}
-
-/*
- * pc_stop and pc_start provide software flow control to the routine and the
- * pc_ioctl routine.
- */
-static void pc_stop(struct tty_struct *tty)
-{
- struct channel *ch;
- unsigned long flags;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- spin_lock_irqsave(&epca_lock, flags);
- if ((ch->statusflags & TXSTOPPED) == 0) {
- /* Begin if transmit stop requested */
- globalwinon(ch);
- /* STOP transmitting now !! */
- fepcmd(ch, PAUSETX, 0, 0, 0, 0);
- ch->statusflags |= TXSTOPPED;
- memoff(ch);
- } /* End if transmit stop requested */
- spin_unlock_irqrestore(&epca_lock, flags);
- }
-}
-
-static void pc_start(struct tty_struct *tty)
-{
- struct channel *ch;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- unsigned long flags;
- spin_lock_irqsave(&epca_lock, flags);
- /* Just in case output was resumed because of a change
- in Digi-flow */
- if (ch->statusflags & TXSTOPPED) {
- /* Begin transmit resume requested */
- struct board_chan __iomem *bc;
- globalwinon(ch);
- bc = ch->brdchan;
- if (ch->statusflags & LOWWAIT)
- writeb(1, &bc->ilow);
- /* Okay, you can start transmitting again... */
- fepcmd(ch, RESUMETX, 0, 0, 0, 0);
- ch->statusflags &= ~TXSTOPPED;
- memoff(ch);
- } /* End transmit resume requested */
- spin_unlock_irqrestore(&epca_lock, flags);
- }
-}
-
-/*
- * The below routines pc_throttle and pc_unthrottle are used to slow (And
- * resume) the receipt of data into the kernels receive buffers. The exact
- * occurrence of this depends on the size of the kernels receive buffer and
- * what the 'watermarks' are set to for that buffer. See the n_ttys.c file for
- * more details.
- */
-static void pc_throttle(struct tty_struct *tty)
-{
- struct channel *ch;
- unsigned long flags;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- spin_lock_irqsave(&epca_lock, flags);
- if ((ch->statusflags & RXSTOPPED) == 0) {
- globalwinon(ch);
- fepcmd(ch, PAUSERX, 0, 0, 0, 0);
- ch->statusflags |= RXSTOPPED;
- memoff(ch);
- }
- spin_unlock_irqrestore(&epca_lock, flags);
- }
-}
-
-static void pc_unthrottle(struct tty_struct *tty)
-{
- struct channel *ch;
- unsigned long flags;
- /*
- * verifyChannel returns the channel from the tty struct if it is
- * valid. This serves as a sanity check.
- */
- ch = verifyChannel(tty);
- if (ch != NULL) {
- /* Just in case output was resumed because of a change
- in Digi-flow */
- spin_lock_irqsave(&epca_lock, flags);
- if (ch->statusflags & RXSTOPPED) {
- globalwinon(ch);
- fepcmd(ch, RESUMERX, 0, 0, 0, 0);
- ch->statusflags &= ~RXSTOPPED;
- memoff(ch);
- }
- spin_unlock_irqrestore(&epca_lock, flags);
- }
-}
-
-static int pc_send_break(struct tty_struct *tty, int msec)
-{
- struct channel *ch = tty->driver_data;
- unsigned long flags;
-
- if (msec == -1)
- msec = 0xFFFF;
- else if (msec > 0xFFFE)
- msec = 0xFFFE;
- else if (msec < 1)
- msec = 1;
-
- spin_lock_irqsave(&epca_lock, flags);
- globalwinon(ch);
- /*
- * Maybe I should send an infinite break here, schedule() for msec
- * amount of time, and then stop the break. This way, the user can't
- * screw up the FEP by causing digi_send_break() to be called (i.e. via
- * an ioctl()) more than once in msec amount of time.
- * Try this for now...
- */
- fepcmd(ch, SENDBREAK, msec, 0, 10, 0);
- memoff(ch);
- spin_unlock_irqrestore(&epca_lock, flags);
- return 0;
-}
-
-/* Caller MUST hold the lock */
-static void setup_empty_event(struct tty_struct *tty, struct channel *ch)
-{
- struct board_chan __iomem *bc = ch->brdchan;
-
- globalwinon(ch);
- ch->statusflags |= EMPTYWAIT;
- /*
- * When set the iempty flag request a event to be generated when the
- * transmit buffer is empty (If there is no BREAK in progress).
- */
- writeb(1, &bc->iempty);
- memoff(ch);
-}
-
-#ifndef MODULE
-static void __init epca_setup(char *str, int *ints)
-{
- struct board_info board;
- int index, loop, last;
- char *temp, *t2;
- unsigned len;
-
- /*
- * If this routine looks a little strange it is because it is only
- * called if a LILO append command is given to boot the kernel with
- * parameters. In this way, we can provide the user a method of
- * changing his board configuration without rebuilding the kernel.
- */
- if (!liloconfig)
- liloconfig = 1;
-
- memset(&board, 0, sizeof(board));
-
- /* Assume the data is int first, later we can change it */
- /* I think that array position 0 of ints holds the number of args */
- for (last = 0, index = 1; index <= ints[0]; index++)
- switch (index) { /* Begin parse switch */
- case 1:
- board.status = ints[index];
- /*
- * We check for 2 (As opposed to 1; because 2 is a flag
- * instructing the driver to ignore epcaconfig.) For
- * this reason we check for 2.
- */
- if (board.status == 2) {
- /* Begin ignore epcaconfig as well as lilo cmd line */
- nbdevs = 0;
- num_cards = 0;
- return;
- } /* End ignore epcaconfig as well as lilo cmd line */
-
- if (board.status > 2) {
- printk(KERN_ERR "epca_setup: Invalid board status 0x%x\n",
- board.status);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_BOARD_STATUS;
- return;
- }
- last = index;
- break;
- case 2:
- board.type = ints[index];
- if (board.type >= PCIXEM) {
- printk(KERN_ERR "epca_setup: Invalid board type 0x%x\n", board.type);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_BOARD_TYPE;
- return;
- }
- last = index;
- break;
- case 3:
- board.altpin = ints[index];
- if (board.altpin > 1) {
- printk(KERN_ERR "epca_setup: Invalid board altpin 0x%x\n", board.altpin);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_ALTPIN;
- return;
- }
- last = index;
- break;
-
- case 4:
- board.numports = ints[index];
- if (board.numports < 2 || board.numports > 256) {
- printk(KERN_ERR "epca_setup: Invalid board numports 0x%x\n", board.numports);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_NUM_PORTS;
- return;
- }
- nbdevs += board.numports;
- last = index;
- break;
-
- case 5:
- board.port = ints[index];
- if (ints[index] <= 0) {
- printk(KERN_ERR "epca_setup: Invalid io port 0x%x\n", (unsigned int)board.port);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_PORT_BASE;
- return;
- }
- last = index;
- break;
-
- case 6:
- board.membase = ints[index];
- if (ints[index] <= 0) {
- printk(KERN_ERR "epca_setup: Invalid memory base 0x%x\n",
- (unsigned int)board.membase);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_MEM_BASE;
- return;
- }
- last = index;
- break;
-
- default:
- printk(KERN_ERR "<Error> - epca_setup: Too many integer parms\n");
- return;
-
- } /* End parse switch */
-
- while (str && *str) { /* Begin while there is a string arg */
- /* find the next comma or terminator */
- temp = str;
- /* While string is not null, and a comma hasn't been found */
- while (*temp && (*temp != ','))
- temp++;
- if (!*temp)
- temp = NULL;
- else
- *temp++ = 0;
- /* Set index to the number of args + 1 */
- index = last + 1;
-
- switch (index) {
- case 1:
- len = strlen(str);
- if (strncmp("Disable", str, len) == 0)
- board.status = 0;
- else if (strncmp("Enable", str, len) == 0)
- board.status = 1;
- else {
- printk(KERN_ERR "epca_setup: Invalid status %s\n", str);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_BOARD_STATUS;
- return;
- }
- last = index;
- break;
-
- case 2:
- for (loop = 0; loop < EPCA_NUM_TYPES; loop++)
- if (strcmp(board_desc[loop], str) == 0)
- break;
- /*
- * If the index incremented above refers to a
- * legitamate board type set it here.
- */
- if (index < EPCA_NUM_TYPES)
- board.type = loop;
- else {
- printk(KERN_ERR "epca_setup: Invalid board type: %s\n", str);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_BOARD_TYPE;
- return;
- }
- last = index;
- break;
-
- case 3:
- len = strlen(str);
- if (strncmp("Disable", str, len) == 0)
- board.altpin = 0;
- else if (strncmp("Enable", str, len) == 0)
- board.altpin = 1;
- else {
- printk(KERN_ERR "epca_setup: Invalid altpin %s\n", str);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_ALTPIN;
- return;
- }
- last = index;
- break;
-
- case 4:
- t2 = str;
- while (isdigit(*t2))
- t2++;
-
- if (*t2) {
- printk(KERN_ERR "epca_setup: Invalid port count %s\n", str);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_NUM_PORTS;
- return;
- }
-
- /*
- * There is not a man page for simple_strtoul but the
- * code can be found in vsprintf.c. The first argument
- * is the string to translate (To an unsigned long
- * obviously), the second argument can be the address
- * of any character variable or a NULL. If a variable
- * is given, the end pointer of the string will be
- * stored in that variable; if a NULL is given the end
- * pointer will not be returned. The last argument is
- * the base to use. If a 0 is indicated, the routine
- * will attempt to determine the proper base by looking
- * at the values prefix (A '0' for octal, a 'x' for
- * hex, etc ... If a value is given it will use that
- * value as the base.
- */
- board.numports = simple_strtoul(str, NULL, 0);
- nbdevs += board.numports;
- last = index;
- break;
-
- case 5:
- t2 = str;
- while (isxdigit(*t2))
- t2++;
-
- if (*t2) {
- printk(KERN_ERR "epca_setup: Invalid i/o address %s\n", str);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_PORT_BASE;
- return;
- }
-
- board.port = simple_strtoul(str, NULL, 16);
- last = index;
- break;
-
- case 6:
- t2 = str;
- while (isxdigit(*t2))
- t2++;
-
- if (*t2) {
- printk(KERN_ERR "epca_setup: Invalid memory base %s\n", str);
- invalid_lilo_config = 1;
- setup_error_code |= INVALID_MEM_BASE;
- return;
- }
- board.membase = simple_strtoul(str, NULL, 16);
- last = index;
- break;
- default:
- printk(KERN_ERR "epca: Too many string parms\n");
- return;
- }
- str = temp;
- } /* End while there is a string arg */
-
- if (last < 6) {
- printk(KERN_ERR "epca: Insufficient parms specified\n");
- return;
- }
-
- /* I should REALLY validate the stuff here */
- /* Copies our local copy of board into boards */
- memcpy((void *)&boards[num_cards], (void *)&board, sizeof(board));
- /* Does this get called once per lilo arg are what ? */
- printk(KERN_INFO "PC/Xx: Added board %i, %s %i ports at 0x%4.4X base 0x%6.6X\n",
- num_cards, board_desc[board.type],
- board.numports, (int)board.port, (unsigned int) board.membase);
- num_cards++;
-}
-
-static int __init epca_real_setup(char *str)
-{
- int ints[11];
-
- epca_setup(get_options(str, 11, ints), ints);
- return 1;
-}
-
-__setup("digiepca", epca_real_setup);
-#endif
-
-enum epic_board_types {
- brd_xr = 0,
- brd_xem,
- brd_cx,
- brd_xrj,
-};
-
-/* indexed directly by epic_board_types enum */
-static struct {
- unsigned char board_type;
- unsigned bar_idx; /* PCI base address region */
-} epca_info_tbl[] = {
- { PCIXR, 0, },
- { PCIXEM, 0, },
- { PCICX, 0, },
- { PCIXRJ, 2, },
-};
-
-static int __devinit epca_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- static int board_num = -1;
- int board_idx, info_idx = ent->driver_data;
- unsigned long addr;
-
- if (pci_enable_device(pdev))
- return -EIO;
-
- board_num++;
- board_idx = board_num + num_cards;
- if (board_idx >= MAXBOARDS)
- goto err_out;
-
- addr = pci_resource_start(pdev, epca_info_tbl[info_idx].bar_idx);
- if (!addr) {
- printk(KERN_ERR PFX "PCI region #%d not available (size 0)\n",
- epca_info_tbl[info_idx].bar_idx);
- goto err_out;
- }
-
- boards[board_idx].status = ENABLED;
- boards[board_idx].type = epca_info_tbl[info_idx].board_type;
- boards[board_idx].numports = 0x0;
- boards[board_idx].port = addr + PCI_IO_OFFSET;
- boards[board_idx].membase = addr;
-
- if (!request_mem_region(addr + PCI_IO_OFFSET, 0x200000, "epca")) {
- printk(KERN_ERR PFX "resource 0x%x @ 0x%lx unavailable\n",
- 0x200000, addr + PCI_IO_OFFSET);
- goto err_out;
- }
-
- boards[board_idx].re_map_port = ioremap_nocache(addr + PCI_IO_OFFSET,
- 0x200000);
- if (!boards[board_idx].re_map_port) {
- printk(KERN_ERR PFX "cannot map 0x%x @ 0x%lx\n",
- 0x200000, addr + PCI_IO_OFFSET);
- goto err_out_free_pciio;
- }
-
- if (!request_mem_region(addr, 0x200000, "epca")) {
- printk(KERN_ERR PFX "resource 0x%x @ 0x%lx unavailable\n",
- 0x200000, addr);
- goto err_out_free_iounmap;
- }
-
- boards[board_idx].re_map_membase = ioremap_nocache(addr, 0x200000);
- if (!boards[board_idx].re_map_membase) {
- printk(KERN_ERR PFX "cannot map 0x%x @ 0x%lx\n",
- 0x200000, addr + PCI_IO_OFFSET);
- goto err_out_free_memregion;
- }
-
- /*
- * I don't know what the below does, but the hardware guys say its
- * required on everything except PLX (In this case XRJ).
- */
- if (info_idx != brd_xrj) {
- pci_write_config_byte(pdev, 0x40, 0);
- pci_write_config_byte(pdev, 0x46, 0);
- }
-
- return 0;
-
-err_out_free_memregion:
- release_mem_region(addr, 0x200000);
-err_out_free_iounmap:
- iounmap(boards[board_idx].re_map_port);
-err_out_free_pciio:
- release_mem_region(addr + PCI_IO_OFFSET, 0x200000);
-err_out:
- return -ENODEV;
-}
-
-
-static struct pci_device_id epca_pci_tbl[] = {
- { PCI_VENDOR_DIGI, PCI_DEVICE_XR, PCI_ANY_ID, PCI_ANY_ID, 0, 0, brd_xr },
- { PCI_VENDOR_DIGI, PCI_DEVICE_XEM, PCI_ANY_ID, PCI_ANY_ID, 0, 0, brd_xem },
- { PCI_VENDOR_DIGI, PCI_DEVICE_CX, PCI_ANY_ID, PCI_ANY_ID, 0, 0, brd_cx },
- { PCI_VENDOR_DIGI, PCI_DEVICE_XRJ, PCI_ANY_ID, PCI_ANY_ID, 0, 0, brd_xrj },
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, epca_pci_tbl);
-
-static int __init init_PCI(void)
-{
- memset(&epca_driver, 0, sizeof(epca_driver));
- epca_driver.name = "epca";
- epca_driver.id_table = epca_pci_tbl;
- epca_driver.probe = epca_init_one;
-
- return pci_register_driver(&epca_driver);
-}
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/epca.h b/drivers/char/epca.h
deleted file mode 100644
index d414bf2dbf7..00000000000
--- a/drivers/char/epca.h
+++ /dev/null
@@ -1,158 +0,0 @@
-#define XEMPORTS 0xC02
-#define XEPORTS 0xC22
-
-#define MAX_ALLOC 0x100
-
-#define MAXBOARDS 12
-#define FEPCODESEG 0x0200L
-#define FEPCODE 0x2000L
-#define BIOSCODE 0xf800L
-
-#define MISCGLOBAL 0x0C00L
-#define NPORT 0x0C22L
-#define MBOX 0x0C40L
-#define PORTBASE 0x0C90L
-
-/* Begin code defines used for epca_setup */
-
-#define INVALID_BOARD_TYPE 0x1
-#define INVALID_NUM_PORTS 0x2
-#define INVALID_MEM_BASE 0x4
-#define INVALID_PORT_BASE 0x8
-#define INVALID_BOARD_STATUS 0x10
-#define INVALID_ALTPIN 0x20
-
-/* End code defines used for epca_setup */
-
-
-#define FEPCLR 0x00
-#define FEPMEM 0x02
-#define FEPRST 0x04
-#define FEPINT 0x08
-#define FEPMASK 0x0e
-#define FEPWIN 0x80
-
-#define PCXE 0
-#define PCXEVE 1
-#define PCXEM 2
-#define EISAXEM 3
-#define PC64XE 4
-#define PCXI 5
-#define PCIXEM 7
-#define PCICX 8
-#define PCIXR 9
-#define PCIXRJ 10
-#define EPCA_NUM_TYPES 6
-
-
-static char *board_desc[] =
-{
- "PC/Xe",
- "PC/Xeve",
- "PC/Xem",
- "EISA/Xem",
- "PC/64Xe",
- "PC/Xi",
- "unknown",
- "PCI/Xem",
- "PCI/CX",
- "PCI/Xr",
- "PCI/Xrj",
-};
-
-#define STARTC 021
-#define STOPC 023
-#define IAIXON 0x2000
-
-
-#define TXSTOPPED 0x1
-#define LOWWAIT 0x2
-#define EMPTYWAIT 0x4
-#define RXSTOPPED 0x8
-#define TXBUSY 0x10
-
-#define DISABLED 0
-#define ENABLED 1
-#define OFF 0
-#define ON 1
-
-#define FEPTIMEOUT 200000
-#define SERIAL_TYPE_INFO 3
-#define EPCA_EVENT_HANGUP 1
-#define EPCA_MAGIC 0x5c6df104L
-
-struct channel
-{
- long magic;
- struct tty_port port;
- unsigned char boardnum;
- unsigned char channelnum;
- unsigned char omodem; /* FEP output modem status */
- unsigned char imodem; /* FEP input modem status */
- unsigned char modemfake; /* Modem values to be forced */
- unsigned char modem; /* Force values */
- unsigned char hflow;
- unsigned char dsr;
- unsigned char dcd;
- unsigned char m_rts ; /* The bits used in whatever FEP */
- unsigned char m_dcd ; /* is indiginous to this board to */
- unsigned char m_dsr ; /* represent each of the physical */
- unsigned char m_cts ; /* handshake lines */
- unsigned char m_ri ;
- unsigned char m_dtr ;
- unsigned char stopc;
- unsigned char startc;
- unsigned char stopca;
- unsigned char startca;
- unsigned char fepstopc;
- unsigned char fepstartc;
- unsigned char fepstopca;
- unsigned char fepstartca;
- unsigned char txwin;
- unsigned char rxwin;
- unsigned short fepiflag;
- unsigned short fepcflag;
- unsigned short fepoflag;
- unsigned short txbufhead;
- unsigned short txbufsize;
- unsigned short rxbufhead;
- unsigned short rxbufsize;
- int close_delay;
- unsigned long event;
- uint dev;
- unsigned long statusflags;
- unsigned long c_iflag;
- unsigned long c_cflag;
- unsigned long c_lflag;
- unsigned long c_oflag;
- unsigned char __iomem *txptr;
- unsigned char __iomem *rxptr;
- struct board_info *board;
- struct board_chan __iomem *brdchan;
- struct digi_struct digiext;
- struct work_struct tqueue;
- struct global_data __iomem *mailbox;
-};
-
-struct board_info
-{
- unsigned char status;
- unsigned char type;
- unsigned char altpin;
- unsigned short numports;
- unsigned long port;
- unsigned long membase;
- void __iomem *re_map_port;
- void __iomem *re_map_membase;
- unsigned long memory_seg;
- void ( * memwinon ) (struct board_info *, unsigned int) ;
- void ( * memwinoff ) (struct board_info *, unsigned int) ;
- void ( * globalwinon ) (struct channel *) ;
- void ( * txwinon ) (struct channel *) ;
- void ( * rxwinon ) (struct channel *) ;
- void ( * memoff ) (struct channel *) ;
- void ( * assertgwinon ) (struct channel *) ;
- void ( * assertmemoff ) (struct channel *) ;
- unsigned char poller_inhibited ;
-};
-
diff --git a/drivers/char/epcaconfig.h b/drivers/char/epcaconfig.h
deleted file mode 100644
index 55dec067078..00000000000
--- a/drivers/char/epcaconfig.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#define NUMCARDS 0
-#define NBDEVS 0
-
-struct board_info static_boards[NUMCARDS]={
-};
-
-/* DO NOT HAND EDIT THIS FILE! */
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
deleted file mode 100644
index 5954ee1dc95..00000000000
--- a/drivers/char/generic_serial.c
+++ /dev/null
@@ -1,844 +0,0 @@
-/*
- * generic_serial.c
- *
- * Copyright (C) 1998/1999 R.E.Wolff@BitWizard.nl
- *
- * written for the SX serial driver.
- * Contains the code that should be shared over all the serial drivers.
- *
- * Credit for the idea to do it this way might go to Alan Cox.
- *
- *
- * Version 0.1 -- December, 1998. Initial version.
- * Version 0.2 -- March, 1999. Some more routines. Bugfixes. Etc.
- * Version 0.5 -- August, 1999. Some more fixes. Reformat for Linus.
- *
- * BitWizard is actively maintaining this file. We sometimes find
- * that someone submitted changes to this file. We really appreciate
- * your help, but please submit changes through us. We're doing our
- * best to be responsive. -- REW
- * */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/mm.h>
-#include <linux/generic_serial.h>
-#include <linux/interrupt.h>
-#include <linux/tty_flip.h>
-#include <linux/delay.h>
-#include <linux/gfp.h>
-#include <asm/uaccess.h>
-
-#define DEBUG
-
-static int gs_debug;
-
-#ifdef DEBUG
-#define gs_dprintk(f, str...) if (gs_debug & f) printk (str)
-#else
-#define gs_dprintk(f, str...) /* nothing */
-#endif
-
-#define func_enter() gs_dprintk (GS_DEBUG_FLOW, "gs: enter %s\n", __func__)
-#define func_exit() gs_dprintk (GS_DEBUG_FLOW, "gs: exit %s\n", __func__)
-
-#define RS_EVENT_WRITE_WAKEUP 1
-
-module_param(gs_debug, int, 0644);
-
-
-int gs_put_char(struct tty_struct * tty, unsigned char ch)
-{
- struct gs_port *port;
-
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port) return 0;
-
- if (! (port->port.flags & ASYNC_INITIALIZED)) return 0;
-
- /* Take a lock on the serial tranmit buffer! */
- mutex_lock(& port->port_write_mutex);
-
- if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
- /* Sorry, buffer is full, drop character. Update statistics???? -- REW */
- mutex_unlock(&port->port_write_mutex);
- return 0;
- }
-
- port->xmit_buf[port->xmit_head++] = ch;
- port->xmit_head &= SERIAL_XMIT_SIZE - 1;
- port->xmit_cnt++; /* Characters in buffer */
-
- mutex_unlock(&port->port_write_mutex);
- func_exit ();
- return 1;
-}
-
-
-/*
-> Problems to take into account are:
-> -1- Interrupts that empty part of the buffer.
-> -2- page faults on the access to userspace.
-> -3- Other processes that are also trying to do a "write".
-*/
-
-int gs_write(struct tty_struct * tty,
- const unsigned char *buf, int count)
-{
- struct gs_port *port;
- int c, total = 0;
- int t;
-
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port) return 0;
-
- if (! (port->port.flags & ASYNC_INITIALIZED))
- return 0;
-
- /* get exclusive "write" access to this port (problem 3) */
- /* This is not a spinlock because we can have a disk access (page
- fault) in copy_from_user */
- mutex_lock(& port->port_write_mutex);
-
- while (1) {
-
- c = count;
-
- /* This is safe because we "OWN" the "head". Noone else can
- change the "head": we own the port_write_mutex. */
- /* Don't overrun the end of the buffer */
- t = SERIAL_XMIT_SIZE - port->xmit_head;
- if (t < c) c = t;
-
- /* This is safe because the xmit_cnt can only decrease. This
- would increase "t", so we might copy too little chars. */
- /* Don't copy past the "head" of the buffer */
- t = SERIAL_XMIT_SIZE - 1 - port->xmit_cnt;
- if (t < c) c = t;
-
- /* Can't copy more? break out! */
- if (c <= 0) break;
-
- memcpy (port->xmit_buf + port->xmit_head, buf, c);
-
- port -> xmit_cnt += c;
- port -> xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE -1);
- buf += c;
- count -= c;
- total += c;
- }
- mutex_unlock(& port->port_write_mutex);
-
- gs_dprintk (GS_DEBUG_WRITE, "write: interrupts are %s\n",
- (port->port.flags & GS_TX_INTEN)?"enabled": "disabled");
-
- if (port->xmit_cnt &&
- !tty->stopped &&
- !tty->hw_stopped &&
- !(port->port.flags & GS_TX_INTEN)) {
- port->port.flags |= GS_TX_INTEN;
- port->rd->enable_tx_interrupts (port);
- }
- func_exit ();
- return total;
-}
-
-
-
-int gs_write_room(struct tty_struct * tty)
-{
- struct gs_port *port = tty->driver_data;
- int ret;
-
- func_enter ();
- ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
- func_exit ();
- return ret;
-}
-
-
-int gs_chars_in_buffer(struct tty_struct *tty)
-{
- struct gs_port *port = tty->driver_data;
- func_enter ();
-
- func_exit ();
- return port->xmit_cnt;
-}
-
-
-static int gs_real_chars_in_buffer(struct tty_struct *tty)
-{
- struct gs_port *port;
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port->rd) return 0;
- if (!port->rd->chars_in_buffer) return 0;
-
- func_exit ();
- return port->xmit_cnt + port->rd->chars_in_buffer (port);
-}
-
-
-static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
-{
- struct gs_port *port = ptr;
- unsigned long end_jiffies;
- int jiffies_to_transmit, charsleft = 0, rv = 0;
- int rcib;
-
- func_enter();
-
- gs_dprintk (GS_DEBUG_FLUSH, "port=%p.\n", port);
- if (port) {
- gs_dprintk (GS_DEBUG_FLUSH, "xmit_cnt=%x, xmit_buf=%p, tty=%p.\n",
- port->xmit_cnt, port->xmit_buf, port->port.tty);
- }
-
- if (!port || port->xmit_cnt < 0 || !port->xmit_buf) {
- gs_dprintk (GS_DEBUG_FLUSH, "ERROR: !port, !port->xmit_buf or prot->xmit_cnt < 0.\n");
- func_exit();
- return -EINVAL; /* This is an error which we don't know how to handle. */
- }
-
- rcib = gs_real_chars_in_buffer(port->port.tty);
-
- if(rcib <= 0) {
- gs_dprintk (GS_DEBUG_FLUSH, "nothing to wait for.\n");
- func_exit();
- return rv;
- }
- /* stop trying: now + twice the time it would normally take + seconds */
- if (timeout == 0) timeout = MAX_SCHEDULE_TIMEOUT;
- end_jiffies = jiffies;
- if (timeout != MAX_SCHEDULE_TIMEOUT)
- end_jiffies += port->baud?(2 * rcib * 10 * HZ / port->baud):0;
- end_jiffies += timeout;
-
- gs_dprintk (GS_DEBUG_FLUSH, "now=%lx, end=%lx (%ld).\n",
- jiffies, end_jiffies, end_jiffies-jiffies);
-
- /* the expression is actually jiffies < end_jiffies, but that won't
- work around the wraparound. Tricky eh? */
- while ((charsleft = gs_real_chars_in_buffer (port->port.tty)) &&
- time_after (end_jiffies, jiffies)) {
- /* Units check:
- chars * (bits/char) * (jiffies /sec) / (bits/sec) = jiffies!
- check! */
-
- charsleft += 16; /* Allow 16 chars more to be transmitted ... */
- jiffies_to_transmit = port->baud?(1 + charsleft * 10 * HZ / port->baud):0;
- /* ^^^ Round up.... */
- if (jiffies_to_transmit <= 0) jiffies_to_transmit = 1;
-
- gs_dprintk (GS_DEBUG_FLUSH, "Expect to finish in %d jiffies "
- "(%d chars).\n", jiffies_to_transmit, charsleft);
-
- msleep_interruptible(jiffies_to_msecs(jiffies_to_transmit));
- if (signal_pending (current)) {
- gs_dprintk (GS_DEBUG_FLUSH, "Signal pending. Bombing out: ");
- rv = -EINTR;
- break;
- }
- }
-
- gs_dprintk (GS_DEBUG_FLUSH, "charsleft = %d.\n", charsleft);
- set_current_state (TASK_RUNNING);
-
- func_exit();
- return rv;
-}
-
-
-
-void gs_flush_buffer(struct tty_struct *tty)
-{
- struct gs_port *port;
- unsigned long flags;
-
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port) return;
-
- /* XXX Would the write semaphore do? */
- spin_lock_irqsave (&port->driver_lock, flags);
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- spin_unlock_irqrestore (&port->driver_lock, flags);
-
- tty_wakeup(tty);
- func_exit ();
-}
-
-
-void gs_flush_chars(struct tty_struct * tty)
-{
- struct gs_port *port;
-
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port) return;
-
- if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !port->xmit_buf) {
- func_exit ();
- return;
- }
-
- /* Beats me -- REW */
- port->port.flags |= GS_TX_INTEN;
- port->rd->enable_tx_interrupts (port);
- func_exit ();
-}
-
-
-void gs_stop(struct tty_struct * tty)
-{
- struct gs_port *port;
-
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port) return;
-
- if (port->xmit_cnt &&
- port->xmit_buf &&
- (port->port.flags & GS_TX_INTEN) ) {
- port->port.flags &= ~GS_TX_INTEN;
- port->rd->disable_tx_interrupts (port);
- }
- func_exit ();
-}
-
-
-void gs_start(struct tty_struct * tty)
-{
- struct gs_port *port;
-
- port = tty->driver_data;
-
- if (!port) return;
-
- if (port->xmit_cnt &&
- port->xmit_buf &&
- !(port->port.flags & GS_TX_INTEN) ) {
- port->port.flags |= GS_TX_INTEN;
- port->rd->enable_tx_interrupts (port);
- }
- func_exit ();
-}
-
-
-static void gs_shutdown_port (struct gs_port *port)
-{
- unsigned long flags;
-
- func_enter();
-
- if (!port) return;
-
- if (!(port->port.flags & ASYNC_INITIALIZED))
- return;
-
- spin_lock_irqsave(&port->driver_lock, flags);
-
- if (port->xmit_buf) {
- free_page((unsigned long) port->xmit_buf);
- port->xmit_buf = NULL;
- }
-
- if (port->port.tty)
- set_bit(TTY_IO_ERROR, &port->port.tty->flags);
-
- port->rd->shutdown_port (port);
-
- port->port.flags &= ~ASYNC_INITIALIZED;
- spin_unlock_irqrestore(&port->driver_lock, flags);
-
- func_exit();
-}
-
-
-void gs_hangup(struct tty_struct *tty)
-{
- struct gs_port *port;
- unsigned long flags;
-
- func_enter ();
-
- port = tty->driver_data;
- tty = port->port.tty;
- if (!tty)
- return;
-
- gs_shutdown_port (port);
- spin_lock_irqsave(&port->port.lock, flags);
- port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
- port->port.tty = NULL;
- port->port.count = 0;
- spin_unlock_irqrestore(&port->port.lock, flags);
-
- wake_up_interruptible(&port->port.open_wait);
- func_exit ();
-}
-
-
-int gs_block_til_ready(void *port_, struct file * filp)
-{
- struct gs_port *gp = port_;
- struct tty_port *port = &gp->port;
- DECLARE_WAITQUEUE(wait, current);
- int retval;
- int do_clocal = 0;
- int CD;
- struct tty_struct *tty;
- unsigned long flags;
-
- func_enter ();
-
- if (!port) return 0;
-
- tty = port->tty;
-
- gs_dprintk (GS_DEBUG_BTR, "Entering gs_block_till_ready.\n");
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&port->close_wait);
- if (port->flags & ASYNC_HUP_NOTIFY)
- return -EAGAIN;
- else
- return -ERESTARTSYS;
- }
-
- gs_dprintk (GS_DEBUG_BTR, "after hung up\n");
-
- /*
- * If non-blocking mode is set, or the port is not enabled,
- * then make the check up front and then exit.
- */
- if ((filp->f_flags & O_NONBLOCK) ||
- (tty->flags & (1 << TTY_IO_ERROR))) {
- port->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- gs_dprintk (GS_DEBUG_BTR, "after nonblock\n");
-
- if (C_CLOCAL(tty))
- do_clocal = 1;
-
- /*
- * Block waiting for the carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
- * rs_close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
- retval = 0;
-
- add_wait_queue(&port->open_wait, &wait);
-
- gs_dprintk (GS_DEBUG_BTR, "after add waitq.\n");
- spin_lock_irqsave(&port->lock, flags);
- if (!tty_hung_up_p(filp)) {
- port->count--;
- }
- port->blocked_open++;
- spin_unlock_irqrestore(&port->lock, flags);
- while (1) {
- CD = tty_port_carrier_raised(port);
- gs_dprintk (GS_DEBUG_BTR, "CD is now %d.\n", CD);
- set_current_state (TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) ||
- !(port->flags & ASYNC_INITIALIZED)) {
- if (port->flags & ASYNC_HUP_NOTIFY)
- retval = -EAGAIN;
- else
- retval = -ERESTARTSYS;
- break;
- }
- if (!(port->flags & ASYNC_CLOSING) &&
- (do_clocal || CD))
- break;
- gs_dprintk (GS_DEBUG_BTR, "signal_pending is now: %d (%lx)\n",
- (int)signal_pending (current), *(long*)(&current->blocked));
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
- schedule();
- }
- gs_dprintk (GS_DEBUG_BTR, "Got out of the loop. (%d)\n",
- port->blocked_open);
- set_current_state (TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
-
- spin_lock_irqsave(&port->lock, flags);
- if (!tty_hung_up_p(filp)) {
- port->count++;
- }
- port->blocked_open--;
- if (retval == 0)
- port->flags |= ASYNC_NORMAL_ACTIVE;
- spin_unlock_irqrestore(&port->lock, flags);
- func_exit ();
- return retval;
-}
-
-
-void gs_close(struct tty_struct * tty, struct file * filp)
-{
- unsigned long flags;
- struct gs_port *port;
-
- func_enter ();
-
- port = tty->driver_data;
-
- if (!port) return;
-
- if (!port->port.tty) {
- /* This seems to happen when this is called from vhangup. */
- gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->port.tty is NULL\n");
- port->port.tty = tty;
- }
-
- spin_lock_irqsave(&port->port.lock, flags);
-
- if (tty_hung_up_p(filp)) {
- spin_unlock_irqrestore(&port->port.lock, flags);
- if (port->rd->hungup)
- port->rd->hungup (port);
- func_exit ();
- return;
- }
-
- if ((tty->count == 1) && (port->port.count != 1)) {
- printk(KERN_ERR "gs: gs_close port %p: bad port count;"
- " tty->count is 1, port count is %d\n", port, port->port.count);
- port->port.count = 1;
- }
- if (--port->port.count < 0) {
- printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->port.count);
- port->port.count = 0;
- }
-
- if (port->port.count) {
- gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->port.count);
- spin_unlock_irqrestore(&port->port.lock, flags);
- func_exit ();
- return;
- }
- port->port.flags |= ASYNC_CLOSING;
-
- /*
- * Now we wait for the transmit buffer to clear; and we notify
- * the line discipline to only process XON/XOFF characters.
- */
- tty->closing = 1;
- /* if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, port->closing_wait); */
-
- /*
- * At this point we stop accepting input. To do this, we
- * disable the receive line status interrupts, and tell the
- * interrupt driver to stop checking the data ready bit in the
- * line status register.
- */
-
- spin_lock_irqsave(&port->driver_lock, flags);
- port->rd->disable_rx_interrupts (port);
- spin_unlock_irqrestore(&port->driver_lock, flags);
- spin_unlock_irqrestore(&port->port.lock, flags);
-
- /* close has no way of returning "EINTR", so discard return value */
- if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
- gs_wait_tx_flushed (port, port->closing_wait);
-
- port->port.flags &= ~GS_ACTIVE;
-
- gs_flush_buffer(tty);
-
- tty_ldisc_flush(tty);
- tty->closing = 0;
-
- spin_lock_irqsave(&port->driver_lock, flags);
- port->event = 0;
- port->rd->close (port);
- port->rd->shutdown_port (port);
- spin_unlock_irqrestore(&port->driver_lock, flags);
-
- spin_lock_irqsave(&port->port.lock, flags);
- port->port.tty = NULL;
-
- if (port->port.blocked_open) {
- if (port->close_delay) {
- spin_unlock_irqrestore(&port->port.lock, flags);
- msleep_interruptible(jiffies_to_msecs(port->close_delay));
- spin_lock_irqsave(&port->port.lock, flags);
- }
- wake_up_interruptible(&port->port.open_wait);
- }
- port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
- spin_unlock_irqrestore(&port->port.lock, flags);
- wake_up_interruptible(&port->port.close_wait);
-
- func_exit ();
-}
-
-
-void gs_set_termios (struct tty_struct * tty,
- struct ktermios * old_termios)
-{
- struct gs_port *port;
- int baudrate, tmp, rv;
- struct ktermios *tiosp;
-
- func_enter();
-
- port = tty->driver_data;
-
- if (!port) return;
- if (!port->port.tty) {
- /* This seems to happen when this is called after gs_close. */
- gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->port.tty is NULL\n");
- port->port.tty = tty;
- }
-
-
- tiosp = tty->termios;
-
- if (gs_debug & GS_DEBUG_TERMIOS) {
- gs_dprintk (GS_DEBUG_TERMIOS, "termios structure (%p):\n", tiosp);
- }
-
- if(old_termios && (gs_debug & GS_DEBUG_TERMIOS)) {
- if(tiosp->c_iflag != old_termios->c_iflag) printk("c_iflag changed\n");
- if(tiosp->c_oflag != old_termios->c_oflag) printk("c_oflag changed\n");
- if(tiosp->c_cflag != old_termios->c_cflag) printk("c_cflag changed\n");
- if(tiosp->c_lflag != old_termios->c_lflag) printk("c_lflag changed\n");
- if(tiosp->c_line != old_termios->c_line) printk("c_line changed\n");
- if(!memcmp(tiosp->c_cc, old_termios->c_cc, NCC)) printk("c_cc changed\n");
- }
-
- baudrate = tty_get_baud_rate(tty);
-
- if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ( (port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baudrate = 57600;
- else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baudrate = 115200;
- else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- baudrate = 230400;
- else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- baudrate = 460800;
- else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
- baudrate = (port->baud_base / port->custom_divisor);
- }
-
- /* I recommend using THIS instead of the mess in termios (and
- duplicating the above code). Next we should create a clean
- interface towards this variable. If your card supports arbitrary
- baud rates, (e.g. CD1400 or 16550 based cards) then everything
- will be very easy..... */
- port->baud = baudrate;
-
- /* Two timer ticks seems enough to wakeup something like SLIP driver */
- /* Baudrate/10 is cps. Divide by HZ to get chars per tick. */
- tmp = (baudrate / 10 / HZ) * 2;
-
- if (tmp < 0) tmp = 0;
- if (tmp >= SERIAL_XMIT_SIZE) tmp = SERIAL_XMIT_SIZE-1;
-
- port->wakeup_chars = tmp;
-
- /* We should really wait for the characters to be all sent before
- changing the settings. -- CAL */
- rv = gs_wait_tx_flushed (port, MAX_SCHEDULE_TIMEOUT);
- if (rv < 0) return /* rv */;
-
- rv = port->rd->set_real_termios(port);
- if (rv < 0) return /* rv */;
-
- if ((!old_termios ||
- (old_termios->c_cflag & CRTSCTS)) &&
- !( tiosp->c_cflag & CRTSCTS)) {
- tty->stopped = 0;
- gs_start(tty);
- }
-
-#ifdef tytso_patch_94Nov25_1726
- /* This "makes sense", Why is it commented out? */
-
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&port->gs.open_wait);
-#endif
-
- func_exit();
- return /* 0 */;
-}
-
-
-
-/* Must be called with interrupts enabled */
-int gs_init_port(struct gs_port *port)
-{
- unsigned long flags;
-
- func_enter ();
-
- if (port->port.flags & ASYNC_INITIALIZED) {
- func_exit ();
- return 0;
- }
- if (!port->xmit_buf) {
- /* We may sleep in get_zeroed_page() */
- unsigned long tmp;
-
- tmp = get_zeroed_page(GFP_KERNEL);
- spin_lock_irqsave (&port->driver_lock, flags);
- if (port->xmit_buf)
- free_page (tmp);
- else
- port->xmit_buf = (unsigned char *) tmp;
- spin_unlock_irqrestore(&port->driver_lock, flags);
- if (!port->xmit_buf) {
- func_exit ();
- return -ENOMEM;
- }
- }
-
- spin_lock_irqsave (&port->driver_lock, flags);
- if (port->port.tty)
- clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
- mutex_init(&port->port_write_mutex);
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- spin_unlock_irqrestore(&port->driver_lock, flags);
- gs_set_termios(port->port.tty, NULL);
- spin_lock_irqsave (&port->driver_lock, flags);
- port->port.flags |= ASYNC_INITIALIZED;
- port->port.flags &= ~GS_TX_INTEN;
-
- spin_unlock_irqrestore(&port->driver_lock, flags);
- func_exit ();
- return 0;
-}
-
-
-int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
-{
- struct serial_struct sio;
-
- if (copy_from_user(&sio, sp, sizeof(struct serial_struct)))
- return(-EFAULT);
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((sio.baud_base != port->baud_base) ||
- (sio.close_delay != port->close_delay) ||
- ((sio.flags & ~ASYNC_USR_MASK) !=
- (port->port.flags & ~ASYNC_USR_MASK)))
- return(-EPERM);
- }
-
- port->port.flags = (port->port.flags & ~ASYNC_USR_MASK) |
- (sio.flags & ASYNC_USR_MASK);
-
- port->baud_base = sio.baud_base;
- port->close_delay = sio.close_delay;
- port->closing_wait = sio.closing_wait;
- port->custom_divisor = sio.custom_divisor;
-
- gs_set_termios (port->port.tty, NULL);
-
- return 0;
-}
-
-
-/*****************************************************************************/
-
-/*
- * Generate the serial struct info.
- */
-
-int gs_getserial(struct gs_port *port, struct serial_struct __user *sp)
-{
- struct serial_struct sio;
-
- memset(&sio, 0, sizeof(struct serial_struct));
- sio.flags = port->port.flags;
- sio.baud_base = port->baud_base;
- sio.close_delay = port->close_delay;
- sio.closing_wait = port->closing_wait;
- sio.custom_divisor = port->custom_divisor;
- sio.hub6 = 0;
-
- /* If you want you can override these. */
- sio.type = PORT_UNKNOWN;
- sio.xmit_fifo_size = -1;
- sio.line = -1;
- sio.port = -1;
- sio.irq = -1;
-
- if (port->rd->getserial)
- port->rd->getserial (port, &sio);
-
- if (copy_to_user(sp, &sio, sizeof(struct serial_struct)))
- return -EFAULT;
- return 0;
-
-}
-
-
-void gs_got_break(struct gs_port *port)
-{
- func_enter ();
-
- tty_insert_flip_char(port->port.tty, 0, TTY_BREAK);
- tty_schedule_flip(port->port.tty);
- if (port->port.flags & ASYNC_SAK) {
- do_SAK (port->port.tty);
- }
-
- func_exit ();
-}
-
-
-EXPORT_SYMBOL(gs_put_char);
-EXPORT_SYMBOL(gs_write);
-EXPORT_SYMBOL(gs_write_room);
-EXPORT_SYMBOL(gs_chars_in_buffer);
-EXPORT_SYMBOL(gs_flush_buffer);
-EXPORT_SYMBOL(gs_flush_chars);
-EXPORT_SYMBOL(gs_stop);
-EXPORT_SYMBOL(gs_start);
-EXPORT_SYMBOL(gs_hangup);
-EXPORT_SYMBOL(gs_block_til_ready);
-EXPORT_SYMBOL(gs_close);
-EXPORT_SYMBOL(gs_set_termios);
-EXPORT_SYMBOL(gs_init_port);
-EXPORT_SYMBOL(gs_setserial);
-EXPORT_SYMBOL(gs_getserial);
-EXPORT_SYMBOL(gs_got_break);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/ip2/Makefile b/drivers/char/ip2/Makefile
deleted file mode 100644
index 7b78e0dfc5b..00000000000
--- a/drivers/char/ip2/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for the Computone IntelliPort Plus Driver
-#
-
-obj-$(CONFIG_COMPUTONE) += ip2.o
-
-ip2-y := ip2main.o
-
diff --git a/drivers/char/ip2/i2cmd.c b/drivers/char/ip2/i2cmd.c
deleted file mode 100644
index e7af647800b..00000000000
--- a/drivers/char/ip2/i2cmd.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Definition table for In-line and Bypass commands. Applicable
-* only when the standard loadware is active. (This is included
-* source code, not a separate compilation module.)
-*
-*******************************************************************************/
-
-//------------------------------------------------------------------------------
-//
-// Revision History:
-//
-// 10 October 1991 MAG First Draft
-// 7 November 1991 MAG Reflects additional commands.
-// 24 February 1992 MAG Additional commands for 1.4.x loadware
-// 11 March 1992 MAG Additional commands
-// 30 March 1992 MAG Additional command: CMD_DSS_NOW
-// 18 May 1992 MAG Discovered commands 39 & 40 must be at the end of a
-// packet: affects implementation.
-//------------------------------------------------------------------------------
-
-//************
-//* Includes *
-//************
-
-#include "i2cmd.h" /* To get some bit-defines */
-
-//------------------------------------------------------------------------------
-// Here is the table of global arrays which represent each type of command
-// supported in the IntelliPort standard loadware. See also i2cmd.h
-// for a more complete explanation of what is going on.
-//------------------------------------------------------------------------------
-
-// Here are the various globals: note that the names are not used except through
-// the macros defined in i2cmd.h. Also note that although they are character
-// arrays here (for extendability) they are cast to structure pointers in the
-// i2cmd.h macros. See i2cmd.h for flags definitions.
-
-// Length Flags Command
-static UCHAR ct02[] = { 1, BTH, 0x02 }; // DTR UP
-static UCHAR ct03[] = { 1, BTH, 0x03 }; // DTR DN
-static UCHAR ct04[] = { 1, BTH, 0x04 }; // RTS UP
-static UCHAR ct05[] = { 1, BTH, 0x05 }; // RTS DN
-static UCHAR ct06[] = { 1, BYP, 0x06 }; // START FL
-static UCHAR ct07[] = { 2, BTH, 0x07,0 }; // BAUD
-static UCHAR ct08[] = { 2, BTH, 0x08,0 }; // BITS
-static UCHAR ct09[] = { 2, BTH, 0x09,0 }; // STOP
-static UCHAR ct10[] = { 2, BTH, 0x0A,0 }; // PARITY
-static UCHAR ct11[] = { 2, BTH, 0x0B,0 }; // XON
-static UCHAR ct12[] = { 2, BTH, 0x0C,0 }; // XOFF
-static UCHAR ct13[] = { 1, BTH, 0x0D }; // STOP FL
-static UCHAR ct14[] = { 1, BYP|VIP, 0x0E }; // ACK HOTK
-//static UCHAR ct15[]={ 2, BTH|VIP, 0x0F,0 }; // IRQ SET
-static UCHAR ct16[] = { 2, INL, 0x10,0 }; // IXONOPTS
-static UCHAR ct17[] = { 2, INL, 0x11,0 }; // OXONOPTS
-static UCHAR ct18[] = { 1, INL, 0x12 }; // CTSENAB
-static UCHAR ct19[] = { 1, BTH, 0x13 }; // CTSDSAB
-static UCHAR ct20[] = { 1, INL, 0x14 }; // DCDENAB
-static UCHAR ct21[] = { 1, BTH, 0x15 }; // DCDDSAB
-static UCHAR ct22[] = { 1, BTH, 0x16 }; // DSRENAB
-static UCHAR ct23[] = { 1, BTH, 0x17 }; // DSRDSAB
-static UCHAR ct24[] = { 1, BTH, 0x18 }; // RIENAB
-static UCHAR ct25[] = { 1, BTH, 0x19 }; // RIDSAB
-static UCHAR ct26[] = { 2, BTH, 0x1A,0 }; // BRKENAB
-static UCHAR ct27[] = { 1, BTH, 0x1B }; // BRKDSAB
-//static UCHAR ct28[]={ 2, BTH, 0x1C,0 }; // MAXBLOKSIZE
-//static UCHAR ct29[]={ 2, 0, 0x1D,0 }; // reserved
-static UCHAR ct30[] = { 1, INL, 0x1E }; // CTSFLOWENAB
-static UCHAR ct31[] = { 1, INL, 0x1F }; // CTSFLOWDSAB
-static UCHAR ct32[] = { 1, INL, 0x20 }; // RTSFLOWENAB
-static UCHAR ct33[] = { 1, INL, 0x21 }; // RTSFLOWDSAB
-static UCHAR ct34[] = { 2, BTH, 0x22,0 }; // ISTRIPMODE
-static UCHAR ct35[] = { 2, BTH|END, 0x23,0 }; // SENDBREAK
-static UCHAR ct36[] = { 2, BTH, 0x24,0 }; // SETERRMODE
-//static UCHAR ct36a[]={ 3, INL, 0x24,0,0 }; // SET_REPLACE
-
-// The following is listed for completeness, but should never be sent directly
-// by user-level code. It is sent only by library routines in response to data
-// movement.
-//static UCHAR ct37[]={ 5, BYP|VIP, 0x25,0,0,0,0 }; // FLOW PACKET
-
-// Back to normal
-//static UCHAR ct38[] = {11, BTH|VAR, 0x26,0,0,0,0,0,0,0,0,0,0 }; // DEF KEY SEQ
-//static UCHAR ct39[]={ 3, BTH|END, 0x27,0,0 }; // OPOSTON
-//static UCHAR ct40[]={ 1, BTH|END, 0x28 }; // OPOSTOFF
-static UCHAR ct41[] = { 1, BYP, 0x29 }; // RESUME
-//static UCHAR ct42[]={ 2, BTH, 0x2A,0 }; // TXBAUD
-//static UCHAR ct43[]={ 2, BTH, 0x2B,0 }; // RXBAUD
-//static UCHAR ct44[]={ 2, BTH, 0x2C,0 }; // MS PING
-//static UCHAR ct45[]={ 1, BTH, 0x2D }; // HOTENAB
-//static UCHAR ct46[]={ 1, BTH, 0x2E }; // HOTDSAB
-//static UCHAR ct47[]={ 7, BTH, 0x2F,0,0,0,0,0,0 }; // UNIX FLAGS
-//static UCHAR ct48[]={ 1, BTH, 0x30 }; // DSRFLOWENAB
-//static UCHAR ct49[]={ 1, BTH, 0x31 }; // DSRFLOWDSAB
-//static UCHAR ct50[]={ 1, BTH, 0x32 }; // DTRFLOWENAB
-//static UCHAR ct51[]={ 1, BTH, 0x33 }; // DTRFLOWDSAB
-//static UCHAR ct52[]={ 1, BTH, 0x34 }; // BAUDTABRESET
-//static UCHAR ct53[] = { 3, BTH, 0x35,0,0 }; // BAUDREMAP
-static UCHAR ct54[] = { 3, BTH, 0x36,0,0 }; // CUSTOMBAUD1
-static UCHAR ct55[] = { 3, BTH, 0x37,0,0 }; // CUSTOMBAUD2
-static UCHAR ct56[] = { 2, BTH|END, 0x38,0 }; // PAUSE
-static UCHAR ct57[] = { 1, BYP, 0x39 }; // SUSPEND
-static UCHAR ct58[] = { 1, BYP, 0x3A }; // UNSUSPEND
-static UCHAR ct59[] = { 2, BTH, 0x3B,0 }; // PARITYCHK
-static UCHAR ct60[] = { 1, INL|VIP, 0x3C }; // BOOKMARKREQ
-//static UCHAR ct61[]={ 2, BTH, 0x3D,0 }; // INTERNALLOOP
-//static UCHAR ct62[]={ 2, BTH, 0x3E,0 }; // HOTKTIMEOUT
-static UCHAR ct63[] = { 2, INL, 0x3F,0 }; // SETTXON
-static UCHAR ct64[] = { 2, INL, 0x40,0 }; // SETTXOFF
-//static UCHAR ct65[]={ 2, BTH, 0x41,0 }; // SETAUTORTS
-//static UCHAR ct66[]={ 2, BTH, 0x42,0 }; // SETHIGHWAT
-//static UCHAR ct67[]={ 2, BYP, 0x43,0 }; // STARTSELFL
-//static UCHAR ct68[]={ 2, INL, 0x44,0 }; // ENDSELFL
-//static UCHAR ct69[]={ 1, BYP, 0x45 }; // HWFLOW_OFF
-//static UCHAR ct70[]={ 1, BTH, 0x46 }; // ODSRFL_ENAB
-//static UCHAR ct71[]={ 1, BTH, 0x47 }; // ODSRFL_DSAB
-//static UCHAR ct72[]={ 1, BTH, 0x48 }; // ODCDFL_ENAB
-//static UCHAR ct73[]={ 1, BTH, 0x49 }; // ODCDFL_DSAB
-//static UCHAR ct74[]={ 2, BTH, 0x4A,0 }; // LOADLEVEL
-//static UCHAR ct75[]={ 2, BTH, 0x4B,0 }; // STATDATA
-//static UCHAR ct76[]={ 1, BYP, 0x4C }; // BREAK_ON
-//static UCHAR ct77[]={ 1, BYP, 0x4D }; // BREAK_OFF
-//static UCHAR ct78[]={ 1, BYP, 0x4E }; // GETFC
-static UCHAR ct79[] = { 2, BYP, 0x4F,0 }; // XMIT_NOW
-//static UCHAR ct80[]={ 4, BTH, 0x50,0,0,0 }; // DIVISOR_LATCH
-//static UCHAR ct81[]={ 1, BYP, 0x51 }; // GET_STATUS
-//static UCHAR ct82[]={ 1, BYP, 0x52 }; // GET_TXCNT
-//static UCHAR ct83[]={ 1, BYP, 0x53 }; // GET_RXCNT
-//static UCHAR ct84[]={ 1, BYP, 0x54 }; // GET_BOXIDS
-//static UCHAR ct85[]={10, BYP, 0x55,0,0,0,0,0,0,0,0,0 }; // ENAB_MULT
-//static UCHAR ct86[]={ 2, BTH, 0x56,0 }; // RCV_ENABLE
-static UCHAR ct87[] = { 1, BYP, 0x57 }; // HW_TEST
-//static UCHAR ct88[]={ 3, BTH, 0x58,0,0 }; // RCV_THRESHOLD
-//static UCHAR ct90[]={ 3, BYP, 0x5A,0,0 }; // Set SILO
-//static UCHAR ct91[]={ 2, BYP, 0x5B,0 }; // timed break
-
-// Some composite commands as well
-//static UCHAR cc01[]={ 2, BTH, 0x02,0x04 }; // DTR & RTS UP
-//static UCHAR cc02[]={ 2, BTH, 0x03,0x05 }; // DTR & RTS DN
-
-//********
-//* Code *
-//********
-
-//******************************************************************************
-// Function: i2cmdUnixFlags(iflag, cflag, lflag)
-// Parameters: Unix tty flags
-//
-// Returns: Pointer to command structure
-//
-// Description:
-//
-// This routine sets the parameters of command 47 and returns a pointer to the
-// appropriate structure.
-//******************************************************************************
-#if 0
-cmdSyntaxPtr
-i2cmdUnixFlags(unsigned short iflag,unsigned short cflag,unsigned short lflag)
-{
- cmdSyntaxPtr pCM = (cmdSyntaxPtr) ct47;
-
- pCM->cmd[1] = (unsigned char) iflag;
- pCM->cmd[2] = (unsigned char) (iflag >> 8);
- pCM->cmd[3] = (unsigned char) cflag;
- pCM->cmd[4] = (unsigned char) (cflag >> 8);
- pCM->cmd[5] = (unsigned char) lflag;
- pCM->cmd[6] = (unsigned char) (lflag >> 8);
- return pCM;
-}
-#endif /* 0 */
-
-//******************************************************************************
-// Function: i2cmdBaudDef(which, rate)
-// Parameters: ?
-//
-// Returns: Pointer to command structure
-//
-// Description:
-//
-// This routine sets the parameters of commands 54 or 55 (according to the
-// argument which), and returns a pointer to the appropriate structure.
-//******************************************************************************
-static cmdSyntaxPtr
-i2cmdBaudDef(int which, unsigned short rate)
-{
- cmdSyntaxPtr pCM;
-
- switch(which)
- {
- case 1:
- pCM = (cmdSyntaxPtr) ct54;
- break;
- default:
- case 2:
- pCM = (cmdSyntaxPtr) ct55;
- break;
- }
- pCM->cmd[1] = (unsigned char) rate;
- pCM->cmd[2] = (unsigned char) (rate >> 8);
- return pCM;
-}
-
diff --git a/drivers/char/ip2/i2cmd.h b/drivers/char/ip2/i2cmd.h
deleted file mode 100644
index 29277ec6b8e..00000000000
--- a/drivers/char/ip2/i2cmd.h
+++ /dev/null
@@ -1,630 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1999 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Definitions and support for In-line and Bypass commands.
-* Applicable only when the standard loadware is active.
-*
-*******************************************************************************/
-//------------------------------------------------------------------------------
-// Revision History:
-//
-// 10 October 1991 MAG First Draft
-// 7 November 1991 MAG Reflects some new commands
-// 20 February 1992 MAG CMD_HOTACK corrected: no argument.
-// 24 February 1992 MAG Support added for new commands for 1.4.x loadware.
-// 11 March 1992 MAG Additional commands.
-// 16 March 1992 MAG Additional commands.
-// 30 March 1992 MAG Additional command: CMD_DSS_NOW
-// 18 May 1992 MAG Changed CMD_OPOST
-//
-//------------------------------------------------------------------------------
-#ifndef I2CMD_H // To prevent multiple includes
-#define I2CMD_H 1
-
-#include "ip2types.h"
-
-// This module is designed to provide a uniform method of sending commands to
-// the board through command packets. The difficulty is, some commands take
-// parameters, others do not. Furthermore, it is often useful to send several
-// commands to the same channel as part of the same packet. (See also i2pack.h.)
-//
-// This module is designed so that the caller should not be responsible for
-// remembering the exact syntax of each command, or at least so that the
-// compiler could check things somewhat. I'll explain as we go...
-//
-// First, a structure which can embody the syntax of each type of command.
-//
-typedef struct _cmdSyntax
-{
- UCHAR length; // Number of bytes in the command
- UCHAR flags; // Information about the command (see below)
-
- // The command and its parameters, which may be of arbitrary length. Don't
- // worry yet how the parameters will be initialized; macros later take care
- // of it. Also, don't worry about the arbitrary length issue; this structure
- // is never used to allocate space (see i2cmd.c).
- UCHAR cmd[2];
-} cmdSyntax, *cmdSyntaxPtr;
-
-// Bit assignments for flags
-
-#define INL 1 // Set if suitable for inline commands
-#define BYP 2 // Set if suitable for bypass commands
-#define BTH (INL|BYP) // suitable for either!
-#define END 4 // Set if this must be the last command in a block
-#define VIP 8 // Set if this command is special in some way and really
- // should only be sent from the library-level and not
- // directly from user-level
-#define VAR 0x10 // This command is of variable length!
-
-// Declarations for the global arrays used to bear the commands and their
-// arguments.
-//
-// Note: Since these are globals and the arguments might change, it is important
-// that the library routine COPY these into buffers from whence they would be
-// sent, rather than merely storing the pointers. In multi-threaded
-// environments, important that the copy should obtain before any context switch
-// is allowed. Also, for parameterized commands, DO NOT ISSUE THE SAME COMMAND
-// MORE THAN ONCE WITH THE SAME PARAMETERS in the same call.
-//
-static UCHAR ct02[];
-static UCHAR ct03[];
-static UCHAR ct04[];
-static UCHAR ct05[];
-static UCHAR ct06[];
-static UCHAR ct07[];
-static UCHAR ct08[];
-static UCHAR ct09[];
-static UCHAR ct10[];
-static UCHAR ct11[];
-static UCHAR ct12[];
-static UCHAR ct13[];
-static UCHAR ct14[];
-static UCHAR ct15[];
-static UCHAR ct16[];
-static UCHAR ct17[];
-static UCHAR ct18[];
-static UCHAR ct19[];
-static UCHAR ct20[];
-static UCHAR ct21[];
-static UCHAR ct22[];
-static UCHAR ct23[];
-static UCHAR ct24[];
-static UCHAR ct25[];
-static UCHAR ct26[];
-static UCHAR ct27[];
-static UCHAR ct28[];
-static UCHAR ct29[];
-static UCHAR ct30[];
-static UCHAR ct31[];
-static UCHAR ct32[];
-static UCHAR ct33[];
-static UCHAR ct34[];
-static UCHAR ct35[];
-static UCHAR ct36[];
-static UCHAR ct36a[];
-static UCHAR ct41[];
-static UCHAR ct42[];
-static UCHAR ct43[];
-static UCHAR ct44[];
-static UCHAR ct45[];
-static UCHAR ct46[];
-static UCHAR ct48[];
-static UCHAR ct49[];
-static UCHAR ct50[];
-static UCHAR ct51[];
-static UCHAR ct52[];
-static UCHAR ct56[];
-static UCHAR ct57[];
-static UCHAR ct58[];
-static UCHAR ct59[];
-static UCHAR ct60[];
-static UCHAR ct61[];
-static UCHAR ct62[];
-static UCHAR ct63[];
-static UCHAR ct64[];
-static UCHAR ct65[];
-static UCHAR ct66[];
-static UCHAR ct67[];
-static UCHAR ct68[];
-static UCHAR ct69[];
-static UCHAR ct70[];
-static UCHAR ct71[];
-static UCHAR ct72[];
-static UCHAR ct73[];
-static UCHAR ct74[];
-static UCHAR ct75[];
-static UCHAR ct76[];
-static UCHAR ct77[];
-static UCHAR ct78[];
-static UCHAR ct79[];
-static UCHAR ct80[];
-static UCHAR ct81[];
-static UCHAR ct82[];
-static UCHAR ct83[];
-static UCHAR ct84[];
-static UCHAR ct85[];
-static UCHAR ct86[];
-static UCHAR ct87[];
-static UCHAR ct88[];
-static UCHAR ct89[];
-static UCHAR ct90[];
-static UCHAR ct91[];
-static UCHAR cc01[];
-static UCHAR cc02[];
-
-// Now, refer to i2cmd.c, and see the character arrays defined there. They are
-// cast here to cmdSyntaxPtr.
-//
-// There are library functions for issuing bypass or inline commands. These
-// functions take one or more arguments of the type cmdSyntaxPtr. The routine
-// then can figure out how long each command is supposed to be and easily add it
-// to the list.
-//
-// For ease of use, we define manifests which return pointers to appropriate
-// cmdSyntaxPtr things. But some commands also take arguments. If a single
-// argument is used, we define a macro which performs the single assignment and
-// (through the expedient of a comma expression) references the appropriate
-// pointer. For commands requiring several arguments, we actually define a
-// function to perform the assignments.
-
-#define CMD_DTRUP (cmdSyntaxPtr)(ct02) // Raise DTR
-#define CMD_DTRDN (cmdSyntaxPtr)(ct03) // Lower DTR
-#define CMD_RTSUP (cmdSyntaxPtr)(ct04) // Raise RTS
-#define CMD_RTSDN (cmdSyntaxPtr)(ct05) // Lower RTS
-#define CMD_STARTFL (cmdSyntaxPtr)(ct06) // Start Flushing Data
-
-#define CMD_DTRRTS_UP (cmdSyntaxPtr)(cc01) // Raise DTR and RTS
-#define CMD_DTRRTS_DN (cmdSyntaxPtr)(cc02) // Lower DTR and RTS
-
-// Set Baud Rate for transmit and receive
-#define CMD_SETBAUD(arg) \
- (((cmdSyntaxPtr)(ct07))->cmd[1] = (arg),(cmdSyntaxPtr)(ct07))
-
-#define CBR_50 1
-#define CBR_75 2
-#define CBR_110 3
-#define CBR_134 4
-#define CBR_150 5
-#define CBR_200 6
-#define CBR_300 7
-#define CBR_600 8
-#define CBR_1200 9
-#define CBR_1800 10
-#define CBR_2400 11
-#define CBR_4800 12
-#define CBR_9600 13
-#define CBR_19200 14
-#define CBR_38400 15
-#define CBR_2000 16
-#define CBR_3600 17
-#define CBR_7200 18
-#define CBR_56000 19
-#define CBR_57600 20
-#define CBR_64000 21
-#define CBR_76800 22
-#define CBR_115200 23
-#define CBR_C1 24 // Custom baud rate 1
-#define CBR_C2 25 // Custom baud rate 2
-#define CBR_153600 26
-#define CBR_230400 27
-#define CBR_307200 28
-#define CBR_460800 29
-#define CBR_921600 30
-
-// Set Character size
-//
-#define CMD_SETBITS(arg) \
- (((cmdSyntaxPtr)(ct08))->cmd[1] = (arg),(cmdSyntaxPtr)(ct08))
-
-#define CSZ_5 0
-#define CSZ_6 1
-#define CSZ_7 2
-#define CSZ_8 3
-
-// Set number of stop bits
-//
-#define CMD_SETSTOP(arg) \
- (((cmdSyntaxPtr)(ct09))->cmd[1] = (arg),(cmdSyntaxPtr)(ct09))
-
-#define CST_1 0
-#define CST_15 1 // 1.5 stop bits
-#define CST_2 2
-
-// Set parity option
-//
-#define CMD_SETPAR(arg) \
- (((cmdSyntaxPtr)(ct10))->cmd[1] = (arg),(cmdSyntaxPtr)(ct10))
-
-#define CSP_NP 0 // no parity
-#define CSP_OD 1 // odd parity
-#define CSP_EV 2 // Even parity
-#define CSP_SP 3 // Space parity
-#define CSP_MK 4 // Mark parity
-
-// Define xon char for transmitter flow control
-//
-#define CMD_DEF_IXON(arg) \
- (((cmdSyntaxPtr)(ct11))->cmd[1] = (arg),(cmdSyntaxPtr)(ct11))
-
-// Define xoff char for transmitter flow control
-//
-#define CMD_DEF_IXOFF(arg) \
- (((cmdSyntaxPtr)(ct12))->cmd[1] = (arg),(cmdSyntaxPtr)(ct12))
-
-#define CMD_STOPFL (cmdSyntaxPtr)(ct13) // Stop Flushing data
-
-// Acknowledge receipt of hotkey signal
-//
-#define CMD_HOTACK (cmdSyntaxPtr)(ct14)
-
-// Define irq level to use. Should actually be sent by library-level code, not
-// directly from user...
-//
-#define CMDVALUE_IRQ 15 // For library use at initialization. Until this command
- // is sent, board processing doesn't really start.
-#define CMD_SET_IRQ(arg) \
- (((cmdSyntaxPtr)(ct15))->cmd[1] = (arg),(cmdSyntaxPtr)(ct15))
-
-#define CIR_POLL 0 // No IRQ - Poll
-#define CIR_3 3 // IRQ 3
-#define CIR_4 4 // IRQ 4
-#define CIR_5 5 // IRQ 5
-#define CIR_7 7 // IRQ 7
-#define CIR_10 10 // IRQ 10
-#define CIR_11 11 // IRQ 11
-#define CIR_12 12 // IRQ 12
-#define CIR_15 15 // IRQ 15
-
-// Select transmit flow xon/xoff options
-//
-#define CMD_IXON_OPT(arg) \
- (((cmdSyntaxPtr)(ct16))->cmd[1] = (arg),(cmdSyntaxPtr)(ct16))
-
-#define CIX_NONE 0 // Incoming Xon/Xoff characters not special
-#define CIX_XON 1 // Xoff disable, Xon enable
-#define CIX_XANY 2 // Xoff disable, any key enable
-
-// Select receive flow xon/xoff options
-//
-#define CMD_OXON_OPT(arg) \
- (((cmdSyntaxPtr)(ct17))->cmd[1] = (arg),(cmdSyntaxPtr)(ct17))
-
-#define COX_NONE 0 // Don't send Xon/Xoff
-#define COX_XON 1 // Send xon/xoff to start/stop incoming data
-
-
-#define CMD_CTS_REP (cmdSyntaxPtr)(ct18) // Enable CTS reporting
-#define CMD_CTS_NREP (cmdSyntaxPtr)(ct19) // Disable CTS reporting
-
-#define CMD_DCD_REP (cmdSyntaxPtr)(ct20) // Enable DCD reporting
-#define CMD_DCD_NREP (cmdSyntaxPtr)(ct21) // Disable DCD reporting
-
-#define CMD_DSR_REP (cmdSyntaxPtr)(ct22) // Enable DSR reporting
-#define CMD_DSR_NREP (cmdSyntaxPtr)(ct23) // Disable DSR reporting
-
-#define CMD_RI_REP (cmdSyntaxPtr)(ct24) // Enable RI reporting
-#define CMD_RI_NREP (cmdSyntaxPtr)(ct25) // Disable RI reporting
-
-// Enable break reporting and select style
-//
-#define CMD_BRK_REP(arg) \
- (((cmdSyntaxPtr)(ct26))->cmd[1] = (arg),(cmdSyntaxPtr)(ct26))
-
-#define CBK_STAT 0x00 // Report breaks as a status (exception,irq)
-#define CBK_NULL 0x01 // Report breaks as a good null
-#define CBK_STAT_SEQ 0x02 // Report breaks as a status AND as in-band character
- // sequence FFh, 01h, 10h
-#define CBK_SEQ 0x03 // Report breaks as the in-band
- //sequence FFh, 01h, 10h ONLY.
-#define CBK_FLSH 0x04 // if this bit set also flush input data
-#define CBK_POSIX 0x08 // if this bit set report as FF,0,0 sequence
-#define CBK_SINGLE 0x10 // if this bit set with CBK_SEQ or CBK_STAT_SEQ
- //then reports single null instead of triple
-
-#define CMD_BRK_NREP (cmdSyntaxPtr)(ct27) // Disable break reporting
-
-// Specify maximum block size for received data
-//
-#define CMD_MAX_BLOCK(arg) \
- (((cmdSyntaxPtr)(ct28))->cmd[1] = (arg),(cmdSyntaxPtr)(ct28))
-
-// -- COMMAND 29 is reserved --
-
-#define CMD_CTSFL_ENAB (cmdSyntaxPtr)(ct30) // Enable CTS flow control
-#define CMD_CTSFL_DSAB (cmdSyntaxPtr)(ct31) // Disable CTS flow control
-#define CMD_RTSFL_ENAB (cmdSyntaxPtr)(ct32) // Enable RTS flow control
-#define CMD_RTSFL_DSAB (cmdSyntaxPtr)(ct33) // Disable RTS flow control
-
-// Specify istrip option
-//
-#define CMD_ISTRIP_OPT(arg) \
- (((cmdSyntaxPtr)(ct34))->cmd[1] = (arg),(cmdSyntaxPtr)(ct34))
-
-#define CIS_NOSTRIP 0 // Strip characters to character size
-#define CIS_STRIP 1 // Strip any 8-bit characters to 7 bits
-
-// Send a break of arg milliseconds
-//
-#define CMD_SEND_BRK(arg) \
- (((cmdSyntaxPtr)(ct35))->cmd[1] = (arg),(cmdSyntaxPtr)(ct35))
-
-// Set error reporting mode
-//
-#define CMD_SET_ERROR(arg) \
- (((cmdSyntaxPtr)(ct36))->cmd[1] = (arg),(cmdSyntaxPtr)(ct36))
-
-#define CSE_ESTAT 0 // Report error in a status packet
-#define CSE_NOREP 1 // Treat character as though it were good
-#define CSE_DROP 2 // Discard the character
-#define CSE_NULL 3 // Replace with a null
-#define CSE_MARK 4 // Replace with a 3-character sequence (as Unix)
-
-#define CSE_REPLACE 0x8 // Replace the errored character with the
- // replacement character defined here
-
-#define CSE_STAT_REPLACE 0x18 // Replace the errored character with the
- // replacement character defined here AND
- // report the error as a status packet (as in
- // CSE_ESTAT).
-
-
-// COMMAND 37, to send flow control packets, is handled only by low-level
-// library code in response to data movement and shouldn't ever be sent by the
-// user code. See i2pack.h and the body of i2lib.c for details.
-
-// Enable on-board post-processing, using options given in oflag argument.
-// Formerly, this command was automatically preceded by a CMD_OPOST_OFF command
-// because the loadware does not permit sending back-to-back CMD_OPOST_ON
-// commands without an intervening CMD_OPOST_OFF. BUT, WE LEARN 18 MAY 92, that
-// CMD_OPOST_ON and CMD_OPOST_OFF must each be at the end of a packet (or in a
-// solo packet). This means the caller must specify separately CMD_OPOST_OFF,
-// CMD_OPOST_ON(parm) when he calls i2QueueCommands(). That function will ensure
-// each gets a separate packet. Extra CMD_OPOST_OFF's are always ok.
-//
-#define CMD_OPOST_ON(oflag) \
- (*(USHORT *)(((cmdSyntaxPtr)(ct39))->cmd[1]) = (oflag), \
- (cmdSyntaxPtr)(ct39))
-
-#define CMD_OPOST_OFF (cmdSyntaxPtr)(ct40) // Disable on-board post-proc
-
-#define CMD_RESUME (cmdSyntaxPtr)(ct41) // Resume: behave as though an XON
- // were received;
-
-// Set Transmit baud rate (see command 7 for arguments)
-//
-#define CMD_SETBAUD_TX(arg) \
- (((cmdSyntaxPtr)(ct42))->cmd[1] = (arg),(cmdSyntaxPtr)(ct42))
-
-// Set Receive baud rate (see command 7 for arguments)
-//
-#define CMD_SETBAUD_RX(arg) \
- (((cmdSyntaxPtr)(ct43))->cmd[1] = (arg),(cmdSyntaxPtr)(ct43))
-
-// Request interrupt from board each arg milliseconds. Interrupt will specify
-// "received data", even though there may be no data present. If arg == 0,
-// disables any such interrupts.
-//
-#define CMD_PING_REQ(arg) \
- (((cmdSyntaxPtr)(ct44))->cmd[1] = (arg),(cmdSyntaxPtr)(ct44))
-
-#define CMD_HOT_ENAB (cmdSyntaxPtr)(ct45) // Enable Hot-key checking
-#define CMD_HOT_DSAB (cmdSyntaxPtr)(ct46) // Disable Hot-key checking
-
-#if 0
-// COMMAND 47: Send Protocol info via Unix flags:
-// iflag = Unix tty t_iflag
-// cflag = Unix tty t_cflag
-// lflag = Unix tty t_lflag
-// See System V Unix/Xenix documentation for the meanings of the bit fields
-// within these flags
-//
-#define CMD_UNIX_FLAGS(iflag,cflag,lflag) i2cmdUnixFlags(iflag,cflag,lflag)
-#endif /* 0 */
-
-#define CMD_DSRFL_ENAB (cmdSyntaxPtr)(ct48) // Enable DSR receiver ctrl
-#define CMD_DSRFL_DSAB (cmdSyntaxPtr)(ct49) // Disable DSR receiver ctrl
-#define CMD_DTRFL_ENAB (cmdSyntaxPtr)(ct50) // Enable DTR flow control
-#define CMD_DTRFL_DSAB (cmdSyntaxPtr)(ct51) // Disable DTR flow control
-#define CMD_BAUD_RESET (cmdSyntaxPtr)(ct52) // Reset baudrate table
-
-// COMMAND 54: Define custom rate #1
-// rate = (short) 1/10 of the desired baud rate
-//
-#define CMD_BAUD_DEF1(rate) i2cmdBaudDef(1,rate)
-
-// COMMAND 55: Define custom rate #2
-// rate = (short) 1/10 of the desired baud rate
-//
-#define CMD_BAUD_DEF2(rate) i2cmdBaudDef(2,rate)
-
-// Pause arg hundredths of seconds. (Note, this is NOT milliseconds.)
-//
-#define CMD_PAUSE(arg) \
- (((cmdSyntaxPtr)(ct56))->cmd[1] = (arg),(cmdSyntaxPtr)(ct56))
-
-#define CMD_SUSPEND (cmdSyntaxPtr)(ct57) // Suspend output
-#define CMD_UNSUSPEND (cmdSyntaxPtr)(ct58) // Un-Suspend output
-
-// Set parity-checking options
-//
-#define CMD_PARCHK(arg) \
- (((cmdSyntaxPtr)(ct59))->cmd[1] = (arg),(cmdSyntaxPtr)(ct59))
-
-#define CPK_ENAB 0 // Enable parity checking on input
-#define CPK_DSAB 1 // Disable parity checking on input
-
-#define CMD_BMARK_REQ (cmdSyntaxPtr)(ct60) // Bookmark request
-
-
-// Enable/Disable internal loopback mode
-//
-#define CMD_INLOOP(arg) \
- (((cmdSyntaxPtr)(ct61))->cmd[1] = (arg),(cmdSyntaxPtr)(ct61))
-
-#define CIN_DISABLE 0 // Normal operation (default)
-#define CIN_ENABLE 1 // Internal (local) loopback
-#define CIN_REMOTE 2 // Remote loopback
-
-// Specify timeout for hotkeys: Delay will be (arg x 10) milliseconds, arg == 0
-// --> no timeout: wait forever.
-//
-#define CMD_HOT_TIME(arg) \
- (((cmdSyntaxPtr)(ct62))->cmd[1] = (arg),(cmdSyntaxPtr)(ct62))
-
-
-// Define (outgoing) xon for receive flow control
-//
-#define CMD_DEF_OXON(arg) \
- (((cmdSyntaxPtr)(ct63))->cmd[1] = (arg),(cmdSyntaxPtr)(ct63))
-
-// Define (outgoing) xoff for receiver flow control
-//
-#define CMD_DEF_OXOFF(arg) \
- (((cmdSyntaxPtr)(ct64))->cmd[1] = (arg),(cmdSyntaxPtr)(ct64))
-
-// Enable/Disable RTS on transmit (1/2 duplex-style)
-//
-#define CMD_RTS_XMIT(arg) \
- (((cmdSyntaxPtr)(ct65))->cmd[1] = (arg),(cmdSyntaxPtr)(ct65))
-
-#define CHD_DISABLE 0
-#define CHD_ENABLE 1
-
-// Set high-water-mark level (debugging use only)
-//
-#define CMD_SETHIGHWAT(arg) \
- (((cmdSyntaxPtr)(ct66))->cmd[1] = (arg),(cmdSyntaxPtr)(ct66))
-
-// Start flushing tagged data (tag = 0-14)
-//
-#define CMD_START_SELFL(tag) \
- (((cmdSyntaxPtr)(ct67))->cmd[1] = (tag),(cmdSyntaxPtr)(ct67))
-
-// End flushing tagged data (tag = 0-14)
-//
-#define CMD_END_SELFL(tag) \
- (((cmdSyntaxPtr)(ct68))->cmd[1] = (tag),(cmdSyntaxPtr)(ct68))
-
-#define CMD_HWFLOW_OFF (cmdSyntaxPtr)(ct69) // Disable HW TX flow control
-#define CMD_ODSRFL_ENAB (cmdSyntaxPtr)(ct70) // Enable DSR output f/c
-#define CMD_ODSRFL_DSAB (cmdSyntaxPtr)(ct71) // Disable DSR output f/c
-#define CMD_ODCDFL_ENAB (cmdSyntaxPtr)(ct72) // Enable DCD output f/c
-#define CMD_ODCDFL_DSAB (cmdSyntaxPtr)(ct73) // Disable DCD output f/c
-
-// Set transmit interrupt load level. Count should be an even value 2-12
-//
-#define CMD_LOADLEVEL(count) \
- (((cmdSyntaxPtr)(ct74))->cmd[1] = (count),(cmdSyntaxPtr)(ct74))
-
-// If reporting DSS changes, map to character sequence FFh, 2, MSR
-//
-#define CMD_STATDATA(arg) \
- (((cmdSyntaxPtr)(ct75))->cmd[1] = (arg),(cmdSyntaxPtr)(ct75))
-
-#define CSTD_DISABLE// Report DSS changes as status packets only (default)
-#define CSTD_ENABLE // Report DSS changes as in-band data sequence as well as
- // by status packet.
-
-#define CMD_BREAK_ON (cmdSyntaxPtr)(ct76)// Set break and stop xmit
-#define CMD_BREAK_OFF (cmdSyntaxPtr)(ct77)// End break and restart xmit
-#define CMD_GETFC (cmdSyntaxPtr)(ct78)// Request for flow control packet
- // from board.
-
-// Transmit this character immediately
-//
-#define CMD_XMIT_NOW(ch) \
- (((cmdSyntaxPtr)(ct79))->cmd[1] = (ch),(cmdSyntaxPtr)(ct79))
-
-// Set baud rate via "divisor latch"
-//
-#define CMD_DIVISOR_LATCH(which,value) \
- (((cmdSyntaxPtr)(ct80))->cmd[1] = (which), \
- *(USHORT *)(((cmdSyntaxPtr)(ct80))->cmd[2]) = (value), \
- (cmdSyntaxPtr)(ct80))
-
-#define CDL_RX 1 // Set receiver rate
-#define CDL_TX 2 // Set transmit rate
- // (CDL_TX | CDL_RX) Set both rates
-
-// Request for special diagnostic status pkt from the board.
-//
-#define CMD_GET_STATUS (cmdSyntaxPtr)(ct81)
-
-// Request time-stamped transmit character count packet.
-//
-#define CMD_GET_TXCNT (cmdSyntaxPtr)(ct82)
-
-// Request time-stamped receive character count packet.
-//
-#define CMD_GET_RXCNT (cmdSyntaxPtr)(ct83)
-
-// Request for box/board I.D. packet.
-#define CMD_GET_BOXIDS (cmdSyntaxPtr)(ct84)
-
-// Enable or disable multiple channels according to bit-mapped ushorts box 1-4
-//
-#define CMD_ENAB_MULT(enable, box1, box2, box3, box4) \
- (((cmdSytaxPtr)(ct85))->cmd[1] = (enable), \
- *(USHORT *)(((cmdSyntaxPtr)(ct85))->cmd[2]) = (box1), \
- *(USHORT *)(((cmdSyntaxPtr)(ct85))->cmd[4]) = (box2), \
- *(USHORT *)(((cmdSyntaxPtr)(ct85))->cmd[6]) = (box3), \
- *(USHORT *)(((cmdSyntaxPtr)(ct85))->cmd[8]) = (box4), \
- (cmdSyntaxPtr)(ct85))
-
-#define CEM_DISABLE 0
-#define CEM_ENABLE 1
-
-// Enable or disable receiver or receiver interrupts (default both enabled)
-//
-#define CMD_RCV_ENABLE(ch) \
- (((cmdSyntaxPtr)(ct86))->cmd[1] = (ch),(cmdSyntaxPtr)(ct86))
-
-#define CRE_OFF 0 // Disable the receiver
-#define CRE_ON 1 // Enable the receiver
-#define CRE_INTOFF 2 // Disable receiver interrupts (to loadware)
-#define CRE_INTON 3 // Enable receiver interrupts (to loadware)
-
-// Starts up a hardware test process, which runs transparently, and sends a
-// STAT_HWFAIL packet in case a hardware failure is detected.
-//
-#define CMD_HW_TEST (cmdSyntaxPtr)(ct87)
-
-// Change receiver threshold and timeout value:
-// Defaults: timeout = 20mS
-// threshold count = 8 when DTRflow not in use,
-// threshold count = 5 when DTRflow in use.
-//
-#define CMD_RCV_THRESHOLD(count,ms) \
- (((cmdSyntaxPtr)(ct88))->cmd[1] = (count), \
- ((cmdSyntaxPtr)(ct88))->cmd[2] = (ms), \
- (cmdSyntaxPtr)(ct88))
-
-// Makes the loadware report DSS signals for this channel immediately.
-//
-#define CMD_DSS_NOW (cmdSyntaxPtr)(ct89)
-
-// Set the receive silo parameters
-// timeout is ms idle wait until delivery (~VTIME)
-// threshold is max characters cause interrupt (~VMIN)
-//
-#define CMD_SET_SILO(timeout,threshold) \
- (((cmdSyntaxPtr)(ct90))->cmd[1] = (timeout), \
- ((cmdSyntaxPtr)(ct90))->cmd[2] = (threshold), \
- (cmdSyntaxPtr)(ct90))
-
-// Set timed break in decisecond (1/10s)
-//
-#define CMD_LBREAK(ds) \
- (((cmdSyntaxPtr)(ct91))->cmd[1] = (ds),(cmdSyntaxPtr)(ct66))
-
-
-
-#endif // I2CMD_H
diff --git a/drivers/char/ip2/i2ellis.c b/drivers/char/ip2/i2ellis.c
deleted file mode 100644
index 29db44de399..00000000000
--- a/drivers/char/ip2/i2ellis.c
+++ /dev/null
@@ -1,1403 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Low-level interface code for the device driver
-* (This is included source code, not a separate compilation
-* module.)
-*
-*******************************************************************************/
-//---------------------------------------------
-// Function declarations private to this module
-//---------------------------------------------
-// Functions called only indirectly through i2eBordStr entries.
-
-static int iiWriteBuf16(i2eBordStrPtr, unsigned char *, int);
-static int iiWriteBuf8(i2eBordStrPtr, unsigned char *, int);
-static int iiReadBuf16(i2eBordStrPtr, unsigned char *, int);
-static int iiReadBuf8(i2eBordStrPtr, unsigned char *, int);
-
-static unsigned short iiReadWord16(i2eBordStrPtr);
-static unsigned short iiReadWord8(i2eBordStrPtr);
-static void iiWriteWord16(i2eBordStrPtr, unsigned short);
-static void iiWriteWord8(i2eBordStrPtr, unsigned short);
-
-static int iiWaitForTxEmptyII(i2eBordStrPtr, int);
-static int iiWaitForTxEmptyIIEX(i2eBordStrPtr, int);
-static int iiTxMailEmptyII(i2eBordStrPtr);
-static int iiTxMailEmptyIIEX(i2eBordStrPtr);
-static int iiTrySendMailII(i2eBordStrPtr, unsigned char);
-static int iiTrySendMailIIEX(i2eBordStrPtr, unsigned char);
-
-static unsigned short iiGetMailII(i2eBordStrPtr);
-static unsigned short iiGetMailIIEX(i2eBordStrPtr);
-
-static void iiEnableMailIrqII(i2eBordStrPtr);
-static void iiEnableMailIrqIIEX(i2eBordStrPtr);
-static void iiWriteMaskII(i2eBordStrPtr, unsigned char);
-static void iiWriteMaskIIEX(i2eBordStrPtr, unsigned char);
-
-static void ii2Nop(void);
-
-//***************
-//* Static Data *
-//***************
-
-static int ii2Safe; // Safe I/O address for delay routine
-
-static int iiDelayed; // Set when the iiResetDelay function is
- // called. Cleared when ANY board is reset.
-static DEFINE_RWLOCK(Dl_spinlock);
-
-//********
-//* Code *
-//********
-
-//=======================================================
-// Initialization Routines
-//
-// iiSetAddress
-// iiReset
-// iiResetDelay
-// iiInitialize
-//=======================================================
-
-//******************************************************************************
-// Function: iiSetAddress(pB, address, delay)
-// Parameters: pB - pointer to the board structure
-// address - the purported I/O address of the board
-// delay - pointer to the 1-ms delay function to use
-// in this and any future operations to this board
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// This routine (roughly) checks for address validity, sets the i2eValid OK and
-// sets the state to II_STATE_COLD which means that we haven't even sent a reset
-// yet.
-//
-//******************************************************************************
-static int
-iiSetAddress( i2eBordStrPtr pB, int address, delayFunc_t delay )
-{
- // Should any failure occur before init is finished...
- pB->i2eValid = I2E_INCOMPLETE;
-
- // Cannot check upper limit except extremely: Might be microchannel
- // Address must be on an 8-byte boundary
-
- if ((unsigned int)address <= 0x100
- || (unsigned int)address >= 0xfff8
- || (address & 0x7)
- )
- {
- I2_COMPLETE(pB, I2EE_BADADDR);
- }
-
- // Initialize accelerators
- pB->i2eBase = address;
- pB->i2eData = address + FIFO_DATA;
- pB->i2eStatus = address + FIFO_STATUS;
- pB->i2ePointer = address + FIFO_PTR;
- pB->i2eXMail = address + FIFO_MAIL;
- pB->i2eXMask = address + FIFO_MASK;
-
- // Initialize i/o address for ii2DelayIO
- ii2Safe = address + FIFO_NOP;
-
- // Initialize the delay routine
- pB->i2eDelay = ((delay != (delayFunc_t)NULL) ? delay : (delayFunc_t)ii2Nop);
-
- pB->i2eValid = I2E_MAGIC;
- pB->i2eState = II_STATE_COLD;
-
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiReset(pB)
-// Parameters: pB - pointer to the board structure
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Attempts to reset the board (see also i2hw.h). Normally, we would use this to
-// reset a board immediately after iiSetAddress(), but it is valid to reset a
-// board from any state, say, in order to change or re-load loadware. (Under
-// such circumstances, no reason to re-run iiSetAddress(), which is why it is a
-// separate routine and not included in this routine.
-//
-//******************************************************************************
-static int
-iiReset(i2eBordStrPtr pB)
-{
- // Magic number should be set, else even the address is suspect
- if (pB->i2eValid != I2E_MAGIC)
- {
- I2_COMPLETE(pB, I2EE_BADMAGIC);
- }
-
- outb(0, pB->i2eBase + FIFO_RESET); /* Any data will do */
- iiDelay(pB, 50); // Pause between resets
- outb(0, pB->i2eBase + FIFO_RESET); /* Second reset */
-
- // We must wait before even attempting to read anything from the FIFO: the
- // board's P.O.S.T may actually attempt to read and write its end of the
- // FIFO in order to check flags, loop back (where supported), etc. On
- // completion of this testing it would reset the FIFO, and on completion
- // of all // P.O.S.T., write the message. We must not mistake data which
- // might have been sent for testing as part of the reset message. To
- // better utilize time, say, when resetting several boards, we allow the
- // delay to be performed externally; in this way the caller can reset
- // several boards, delay a single time, then call the initialization
- // routine for all.
-
- pB->i2eState = II_STATE_RESET;
-
- iiDelayed = 0; // i.e., the delay routine hasn't been called since the most
- // recent reset.
-
- // Ensure anything which would have been of use to standard loadware is
- // blanked out, since board has now forgotten everything!.
-
- pB->i2eUsingIrq = I2_IRQ_UNDEFINED; /* to not use an interrupt so far */
- pB->i2eWaitingForEmptyFifo = 0;
- pB->i2eOutMailWaiting = 0;
- pB->i2eChannelPtr = NULL;
- pB->i2eChannelCnt = 0;
-
- pB->i2eLeadoffWord[0] = 0;
- pB->i2eFifoInInts = 0;
- pB->i2eFifoOutInts = 0;
- pB->i2eFatalTrap = NULL;
- pB->i2eFatal = 0;
-
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiResetDelay(pB)
-// Parameters: pB - pointer to the board structure
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Using the delay defined in board structure, waits two seconds (for board to
-// reset).
-//
-//******************************************************************************
-static int
-iiResetDelay(i2eBordStrPtr pB)
-{
- if (pB->i2eValid != I2E_MAGIC) {
- I2_COMPLETE(pB, I2EE_BADMAGIC);
- }
- if (pB->i2eState != II_STATE_RESET) {
- I2_COMPLETE(pB, I2EE_BADSTATE);
- }
- iiDelay(pB,2000); /* Now we wait for two seconds. */
- iiDelayed = 1; /* Delay has been called: ok to initialize */
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiInitialize(pB)
-// Parameters: pB - pointer to the board structure
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Attempts to read the Power-on reset message. Initializes any remaining fields
-// in the pB structure.
-//
-// This should be called as the third step of a process beginning with
-// iiReset(), then iiResetDelay(). This routine checks to see that the structure
-// is "valid" and in the reset state, also confirms that the delay routine has
-// been called since the latest reset (to any board! overly strong!).
-//
-//******************************************************************************
-static int
-iiInitialize(i2eBordStrPtr pB)
-{
- int itemp;
- unsigned char c;
- unsigned short utemp;
- unsigned int ilimit;
-
- if (pB->i2eValid != I2E_MAGIC)
- {
- I2_COMPLETE(pB, I2EE_BADMAGIC);
- }
-
- if (pB->i2eState != II_STATE_RESET || !iiDelayed)
- {
- I2_COMPLETE(pB, I2EE_BADSTATE);
- }
-
- // In case there is a failure short of our completely reading the power-up
- // message.
- pB->i2eValid = I2E_INCOMPLETE;
-
-
- // Now attempt to read the message.
-
- for (itemp = 0; itemp < sizeof(porStr); itemp++)
- {
- // We expect the entire message is ready.
- if (!I2_HAS_INPUT(pB)) {
- pB->i2ePomSize = itemp;
- I2_COMPLETE(pB, I2EE_PORM_SHORT);
- }
-
- pB->i2ePom.c[itemp] = c = inb(pB->i2eData);
-
- // We check the magic numbers as soon as they are supposed to be read
- // (rather than after) to minimize effect of reading something we
- // already suspect can't be "us".
- if ( (itemp == POR_1_INDEX && c != POR_MAGIC_1) ||
- (itemp == POR_2_INDEX && c != POR_MAGIC_2))
- {
- pB->i2ePomSize = itemp+1;
- I2_COMPLETE(pB, I2EE_BADMAGIC);
- }
- }
-
- pB->i2ePomSize = itemp;
-
- // Ensure that this was all the data...
- if (I2_HAS_INPUT(pB))
- I2_COMPLETE(pB, I2EE_PORM_LONG);
-
- // For now, we'll fail to initialize if P.O.S.T reports bad chip mapper:
- // Implying we will not be able to download any code either: That's ok: the
- // condition is pretty explicit.
- if (pB->i2ePom.e.porDiag1 & POR_BAD_MAPPER)
- {
- I2_COMPLETE(pB, I2EE_POSTERR);
- }
-
- // Determine anything which must be done differently depending on the family
- // of boards!
- switch (pB->i2ePom.e.porID & POR_ID_FAMILY)
- {
- case POR_ID_FII: // IntelliPort-II
-
- pB->i2eFifoStyle = FIFO_II;
- pB->i2eFifoSize = 512; // 512 bytes, always
- pB->i2eDataWidth16 = false;
-
- pB->i2eMaxIrq = 15; // Because board cannot tell us it is in an 8-bit
- // slot, we do allow it to be done (documentation!)
-
- pB->i2eGoodMap[1] =
- pB->i2eGoodMap[2] =
- pB->i2eGoodMap[3] =
- pB->i2eChannelMap[1] =
- pB->i2eChannelMap[2] =
- pB->i2eChannelMap[3] = 0;
-
- switch (pB->i2ePom.e.porID & POR_ID_SIZE)
- {
- case POR_ID_II_4:
- pB->i2eGoodMap[0] =
- pB->i2eChannelMap[0] = 0x0f; // four-port
-
- // Since porPorts1 is based on the Hardware ID register, the numbers
- // should always be consistent for IntelliPort-II. Ditto below...
- if (pB->i2ePom.e.porPorts1 != 4)
- {
- I2_COMPLETE(pB, I2EE_INCONSIST);
- }
- break;
-
- case POR_ID_II_8:
- case POR_ID_II_8R:
- pB->i2eGoodMap[0] =
- pB->i2eChannelMap[0] = 0xff; // Eight port
- if (pB->i2ePom.e.porPorts1 != 8)
- {
- I2_COMPLETE(pB, I2EE_INCONSIST);
- }
- break;
-
- case POR_ID_II_6:
- pB->i2eGoodMap[0] =
- pB->i2eChannelMap[0] = 0x3f; // Six Port
- if (pB->i2ePom.e.porPorts1 != 6)
- {
- I2_COMPLETE(pB, I2EE_INCONSIST);
- }
- break;
- }
-
- // Fix up the "good channel list based on any errors reported.
- if (pB->i2ePom.e.porDiag1 & POR_BAD_UART1)
- {
- pB->i2eGoodMap[0] &= ~0x0f;
- }
-
- if (pB->i2ePom.e.porDiag1 & POR_BAD_UART2)
- {
- pB->i2eGoodMap[0] &= ~0xf0;
- }
-
- break; // POR_ID_FII case
-
- case POR_ID_FIIEX: // IntelliPort-IIEX
-
- pB->i2eFifoStyle = FIFO_IIEX;
-
- itemp = pB->i2ePom.e.porFifoSize;
-
- // Implicit assumption that fifo would not grow beyond 32k,
- // nor would ever be less than 256.
-
- if (itemp < 8 || itemp > 15)
- {
- I2_COMPLETE(pB, I2EE_INCONSIST);
- }
- pB->i2eFifoSize = (1 << itemp);
-
- // These are based on what P.O.S.T thinks should be there, based on
- // box ID registers
- ilimit = pB->i2ePom.e.porNumBoxes;
- if (ilimit > ABS_MAX_BOXES)
- {
- ilimit = ABS_MAX_BOXES;
- }
-
- // For as many boxes as EXIST, gives the type of box.
- // Added 8/6/93: check for the ISA-4 (asic) which looks like an
- // expandable but for whom "8 or 16?" is not the right question.
-
- utemp = pB->i2ePom.e.porFlags;
- if (utemp & POR_CEX4)
- {
- pB->i2eChannelMap[0] = 0x000f;
- } else {
- utemp &= POR_BOXES;
- for (itemp = 0; itemp < ilimit; itemp++)
- {
- pB->i2eChannelMap[itemp] =
- ((utemp & POR_BOX_16) ? 0xffff : 0x00ff);
- utemp >>= 1;
- }
- }
-
- // These are based on what P.O.S.T actually found.
-
- utemp = (pB->i2ePom.e.porPorts2 << 8) + pB->i2ePom.e.porPorts1;
-
- for (itemp = 0; itemp < ilimit; itemp++)
- {
- pB->i2eGoodMap[itemp] = 0;
- if (utemp & 1) pB->i2eGoodMap[itemp] |= 0x000f;
- if (utemp & 2) pB->i2eGoodMap[itemp] |= 0x00f0;
- if (utemp & 4) pB->i2eGoodMap[itemp] |= 0x0f00;
- if (utemp & 8) pB->i2eGoodMap[itemp] |= 0xf000;
- utemp >>= 4;
- }
-
- // Now determine whether we should transfer in 8 or 16-bit mode.
- switch (pB->i2ePom.e.porBus & (POR_BUS_SLOT16 | POR_BUS_DIP16) )
- {
- case POR_BUS_SLOT16 | POR_BUS_DIP16:
- pB->i2eDataWidth16 = true;
- pB->i2eMaxIrq = 15;
- break;
-
- case POR_BUS_SLOT16:
- pB->i2eDataWidth16 = false;
- pB->i2eMaxIrq = 15;
- break;
-
- case 0:
- case POR_BUS_DIP16: // In an 8-bit slot, DIP switch don't care.
- default:
- pB->i2eDataWidth16 = false;
- pB->i2eMaxIrq = 7;
- break;
- }
- break; // POR_ID_FIIEX case
-
- default: // Unknown type of board
- I2_COMPLETE(pB, I2EE_BAD_FAMILY);
- break;
- } // End the switch based on family
-
- // Temporarily, claim there is no room in the outbound fifo.
- // We will maintain this whenever we check for an empty outbound FIFO.
- pB->i2eFifoRemains = 0;
-
- // Now, based on the bus type, should we expect to be able to re-configure
- // interrupts (say, for testing purposes).
- switch (pB->i2ePom.e.porBus & POR_BUS_TYPE)
- {
- case POR_BUS_T_ISA:
- case POR_BUS_T_UNK: // If the type of bus is undeclared, assume ok.
- case POR_BUS_T_MCA:
- case POR_BUS_T_EISA:
- break;
- default:
- I2_COMPLETE(pB, I2EE_BADBUS);
- }
-
- if (pB->i2eDataWidth16)
- {
- pB->i2eWriteBuf = iiWriteBuf16;
- pB->i2eReadBuf = iiReadBuf16;
- pB->i2eWriteWord = iiWriteWord16;
- pB->i2eReadWord = iiReadWord16;
- } else {
- pB->i2eWriteBuf = iiWriteBuf8;
- pB->i2eReadBuf = iiReadBuf8;
- pB->i2eWriteWord = iiWriteWord8;
- pB->i2eReadWord = iiReadWord8;
- }
-
- switch(pB->i2eFifoStyle)
- {
- case FIFO_II:
- pB->i2eWaitForTxEmpty = iiWaitForTxEmptyII;
- pB->i2eTxMailEmpty = iiTxMailEmptyII;
- pB->i2eTrySendMail = iiTrySendMailII;
- pB->i2eGetMail = iiGetMailII;
- pB->i2eEnableMailIrq = iiEnableMailIrqII;
- pB->i2eWriteMask = iiWriteMaskII;
-
- break;
-
- case FIFO_IIEX:
- pB->i2eWaitForTxEmpty = iiWaitForTxEmptyIIEX;
- pB->i2eTxMailEmpty = iiTxMailEmptyIIEX;
- pB->i2eTrySendMail = iiTrySendMailIIEX;
- pB->i2eGetMail = iiGetMailIIEX;
- pB->i2eEnableMailIrq = iiEnableMailIrqIIEX;
- pB->i2eWriteMask = iiWriteMaskIIEX;
-
- break;
-
- default:
- I2_COMPLETE(pB, I2EE_INCONSIST);
- }
-
- // Initialize state information.
- pB->i2eState = II_STATE_READY; // Ready to load loadware.
-
- // Some Final cleanup:
- // For some boards, the bootstrap firmware may perform some sort of test
- // resulting in a stray character pending in the incoming mailbox. If one is
- // there, it should be read and discarded, especially since for the standard
- // firmware, it's the mailbox that interrupts the host.
-
- pB->i2eStartMail = iiGetMail(pB);
-
- // Throw it away and clear the mailbox structure element
- pB->i2eStartMail = NO_MAIL_HERE;
-
- // Everything is ok now, return with good status/
-
- pB->i2eValid = I2E_MAGIC;
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: ii2DelayTimer(mseconds)
-// Parameters: mseconds - number of milliseconds to delay
-//
-// Returns: Nothing
-//
-// Description:
-//
-// This routine delays for approximately mseconds milliseconds and is intended
-// to be called indirectly through i2Delay field in i2eBordStr. It uses the
-// Linux timer_list mechanism.
-//
-// The Linux timers use a unit called "jiffies" which are 10mS in the Intel
-// architecture. This function rounds the delay period up to the next "jiffy".
-// In the Alpha architecture the "jiffy" is 1mS, but this driver is not intended
-// for Alpha platforms at this time.
-//
-//******************************************************************************
-static void
-ii2DelayTimer(unsigned int mseconds)
-{
- msleep_interruptible(mseconds);
-}
-
-#if 0
-//static void ii2DelayIO(unsigned int);
-//******************************************************************************
-// !!! Not Used, this is DOS crap, some of you young folks may be interested in
-// in how things were done in the stone age of caculating machines !!!
-// Function: ii2DelayIO(mseconds)
-// Parameters: mseconds - number of milliseconds to delay
-//
-// Returns: Nothing
-//
-// Description:
-//
-// This routine delays for approximately mseconds milliseconds and is intended
-// to be called indirectly through i2Delay field in i2eBordStr. It is intended
-// for use where a clock-based function is impossible: for example, DOS drivers.
-//
-// This function uses the IN instruction to place bounds on the timing and
-// assumes that ii2Safe has been set. This is because I/O instructions are not
-// subject to caching and will therefore take a certain minimum time. To ensure
-// the delay is at least long enough on fast machines, it is based on some
-// fastest-case calculations. On slower machines this may cause VERY long
-// delays. (3 x fastest case). In the fastest case, everything is cached except
-// the I/O instruction itself.
-//
-// Timing calculations:
-// The fastest bus speed for I/O operations is likely to be 10 MHz. The I/O
-// operation in question is a byte operation to an odd address. For 8-bit
-// operations, the architecture generally enforces two wait states. At 10 MHz, a
-// single cycle time is 100nS. A read operation at two wait states takes 6
-// cycles for a total time of 600nS. Therefore approximately 1666 iterations
-// would be required to generate a single millisecond delay. The worst
-// (reasonable) case would be an 8MHz system with no cacheing. In this case, the
-// I/O instruction would take 125nS x 6 cyles = 750 nS. More importantly, code
-// fetch of other instructions in the loop would take time (zero wait states,
-// however) and would be hard to estimate. This is minimized by using in-line
-// assembler for the in inner loop of IN instructions. This consists of just a
-// few bytes. So we'll guess about four code fetches per loop. Each code fetch
-// should take four cycles, so we have 125nS * 8 = 1000nS. Worst case then is
-// that what should have taken 1 mS takes instead 1666 * (1750) = 2.9 mS.
-//
-// So much for theoretical timings: results using 1666 value on some actual
-// machines:
-// IBM 286 6MHz 3.15 mS
-// Zenith 386 33MHz 2.45 mS
-// (brandX) 386 33MHz 1.90 mS (has cache)
-// (brandY) 486 33MHz 2.35 mS
-// NCR 486 ?? 1.65 mS (microchannel)
-//
-// For most machines, it is probably safe to scale this number back (remember,
-// for robust operation use an actual timed delay if possible), so we are using
-// a value of 1190. This yields 1.17 mS for the fastest machine in our sample,
-// 1.75 mS for typical 386 machines, and 2.25 mS the absolute slowest machine.
-//
-// 1/29/93:
-// The above timings are too slow. Actual cycle times might be faster. ISA cycle
-// times could approach 500 nS, and ...
-// The IBM model 77 being microchannel has no wait states for 8-bit reads and
-// seems to be accessing the I/O at 440 nS per access (from start of one to
-// start of next). This would imply we need 1000/.440 = 2272 iterations to
-// guarantee we are fast enough. In actual testing, we see that 2 * 1190 are in
-// fact enough. For diagnostics, we keep the level at 1190, but developers note
-// this needs tuning.
-//
-// Safe assumption: 2270 i/o reads = 1 millisecond
-//
-//******************************************************************************
-
-
-static int ii2DelValue = 1190; // See timing calculations below
- // 1666 for fastest theoretical machine
- // 1190 safe for most fast 386 machines
- // 1000 for fastest machine tested here
- // 540 (sic) for AT286/6Mhz
-static void
-ii2DelayIO(unsigned int mseconds)
-{
- if (!ii2Safe)
- return; /* Do nothing if this variable uninitialized */
-
- while(mseconds--) {
- int i = ii2DelValue;
- while ( i-- ) {
- inb(ii2Safe);
- }
- }
-}
-#endif
-
-//******************************************************************************
-// Function: ii2Nop()
-// Parameters: None
-//
-// Returns: Nothing
-//
-// Description:
-//
-// iiInitialize will set i2eDelay to this if the delay parameter is NULL. This
-// saves checking for a NULL pointer at every call.
-//******************************************************************************
-static void
-ii2Nop(void)
-{
- return; // no mystery here
-}
-
-//=======================================================
-// Routines which are available in 8/16-bit versions, or
-// in different fifo styles. These are ALL called
-// indirectly through the board structure.
-//=======================================================
-
-//******************************************************************************
-// Function: iiWriteBuf16(pB, address, count)
-// Parameters: pB - pointer to board structure
-// address - address of data to write
-// count - number of data bytes to write
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Writes 'count' bytes from 'address' to the data fifo specified by the board
-// structure pointer pB. Should count happen to be odd, an extra pad byte is
-// sent (identity unknown...). Uses 16-bit (word) operations. Is called
-// indirectly through pB->i2eWriteBuf.
-//
-//******************************************************************************
-static int
-iiWriteBuf16(i2eBordStrPtr pB, unsigned char *address, int count)
-{
- // Rudimentary sanity checking here.
- if (pB->i2eValid != I2E_MAGIC)
- I2_COMPLETE(pB, I2EE_INVALID);
-
- I2_OUTSW(pB->i2eData, address, count);
-
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiWriteBuf8(pB, address, count)
-// Parameters: pB - pointer to board structure
-// address - address of data to write
-// count - number of data bytes to write
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Writes 'count' bytes from 'address' to the data fifo specified by the board
-// structure pointer pB. Should count happen to be odd, an extra pad byte is
-// sent (identity unknown...). This is to be consistent with the 16-bit version.
-// Uses 8-bit (byte) operations. Is called indirectly through pB->i2eWriteBuf.
-//
-//******************************************************************************
-static int
-iiWriteBuf8(i2eBordStrPtr pB, unsigned char *address, int count)
-{
- /* Rudimentary sanity checking here */
- if (pB->i2eValid != I2E_MAGIC)
- I2_COMPLETE(pB, I2EE_INVALID);
-
- I2_OUTSB(pB->i2eData, address, count);
-
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiReadBuf16(pB, address, count)
-// Parameters: pB - pointer to board structure
-// address - address to put data read
-// count - number of data bytes to read
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Reads 'count' bytes into 'address' from the data fifo specified by the board
-// structure pointer pB. Should count happen to be odd, an extra pad byte is
-// received (identity unknown...). Uses 16-bit (word) operations. Is called
-// indirectly through pB->i2eReadBuf.
-//
-//******************************************************************************
-static int
-iiReadBuf16(i2eBordStrPtr pB, unsigned char *address, int count)
-{
- // Rudimentary sanity checking here.
- if (pB->i2eValid != I2E_MAGIC)
- I2_COMPLETE(pB, I2EE_INVALID);
-
- I2_INSW(pB->i2eData, address, count);
-
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiReadBuf8(pB, address, count)
-// Parameters: pB - pointer to board structure
-// address - address to put data read
-// count - number of data bytes to read
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Reads 'count' bytes into 'address' from the data fifo specified by the board
-// structure pointer pB. Should count happen to be odd, an extra pad byte is
-// received (identity unknown...). This to match the 16-bit behaviour. Uses
-// 8-bit (byte) operations. Is called indirectly through pB->i2eReadBuf.
-//
-//******************************************************************************
-static int
-iiReadBuf8(i2eBordStrPtr pB, unsigned char *address, int count)
-{
- // Rudimentary sanity checking here.
- if (pB->i2eValid != I2E_MAGIC)
- I2_COMPLETE(pB, I2EE_INVALID);
-
- I2_INSB(pB->i2eData, address, count);
-
- I2_COMPLETE(pB, I2EE_GOOD);
-}
-
-//******************************************************************************
-// Function: iiReadWord16(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Returns the word read from the data fifo specified by the board-structure
-// pointer pB. Uses a 16-bit operation. Is called indirectly through
-// pB->i2eReadWord.
-//
-//******************************************************************************
-static unsigned short
-iiReadWord16(i2eBordStrPtr pB)
-{
- return inw(pB->i2eData);
-}
-
-//******************************************************************************
-// Function: iiReadWord8(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Returns the word read from the data fifo specified by the board-structure
-// pointer pB. Uses two 8-bit operations. Bytes are assumed to be LSB first. Is
-// called indirectly through pB->i2eReadWord.
-//
-//******************************************************************************
-static unsigned short
-iiReadWord8(i2eBordStrPtr pB)
-{
- unsigned short urs;
-
- urs = inb(pB->i2eData);
-
- return (inb(pB->i2eData) << 8) | urs;
-}
-
-//******************************************************************************
-// Function: iiWriteWord16(pB, value)
-// Parameters: pB - pointer to board structure
-// value - data to write
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Writes the word 'value' to the data fifo specified by the board-structure
-// pointer pB. Uses 16-bit operation. Is called indirectly through
-// pB->i2eWriteWord.
-//
-//******************************************************************************
-static void
-iiWriteWord16(i2eBordStrPtr pB, unsigned short value)
-{
- outw((int)value, pB->i2eData);
-}
-
-//******************************************************************************
-// Function: iiWriteWord8(pB, value)
-// Parameters: pB - pointer to board structure
-// value - data to write
-//
-// Returns: True if everything appears copacetic.
-// False if there is any error: the pB->i2eError field has the error
-//
-// Description:
-//
-// Writes the word 'value' to the data fifo specified by the board-structure
-// pointer pB. Uses two 8-bit operations (writes LSB first). Is called
-// indirectly through pB->i2eWriteWord.
-//
-//******************************************************************************
-static void
-iiWriteWord8(i2eBordStrPtr pB, unsigned short value)
-{
- outb((char)value, pB->i2eData);
- outb((char)(value >> 8), pB->i2eData);
-}
-
-//******************************************************************************
-// Function: iiWaitForTxEmptyII(pB, mSdelay)
-// Parameters: pB - pointer to board structure
-// mSdelay - period to wait before returning
-//
-// Returns: True if the FIFO is empty.
-// False if it not empty in the required time: the pB->i2eError
-// field has the error.
-//
-// Description:
-//
-// Waits up to "mSdelay" milliseconds for the outgoing FIFO to become empty; if
-// not empty by the required time, returns false and error in pB->i2eError,
-// otherwise returns true.
-//
-// mSdelay == 0 is taken to mean must be empty on the first test.
-//
-// This version operates on IntelliPort-II - style FIFO's
-//
-// Note this routine is organized so that if status is ok there is no delay at
-// all called either before or after the test. Is called indirectly through
-// pB->i2eWaitForTxEmpty.
-//
-//******************************************************************************
-static int
-iiWaitForTxEmptyII(i2eBordStrPtr pB, int mSdelay)
-{
- unsigned long flags;
- int itemp;
-
- for (;;)
- {
- // This routine hinges on being able to see the "other" status register
- // (as seen by the local processor). His incoming fifo is our outgoing
- // FIFO.
- //
- // By the nature of this routine, you would be using this as part of a
- // larger atomic context: i.e., you would use this routine to ensure the
- // fifo empty, then act on this information. Between these two halves,
- // you will generally not want to service interrupts or in any way
- // disrupt the assumptions implicit in the larger context.
- //
- // Even worse, however, this routine "shifts" the status register to
- // point to the local status register which is not the usual situation.
- // Therefore for extra safety, we force the critical section to be
- // completely atomic, and pick up after ourselves before allowing any
- // interrupts of any kind.
-
-
- write_lock_irqsave(&Dl_spinlock, flags);
- outb(SEL_COMMAND, pB->i2ePointer);
- outb(SEL_CMD_SH, pB->i2ePointer);
-
- itemp = inb(pB->i2eStatus);
-
- outb(SEL_COMMAND, pB->i2ePointer);
- outb(SEL_CMD_UNSH, pB->i2ePointer);
-
- if (itemp & ST_IN_EMPTY)
- {
- I2_UPDATE_FIFO_ROOM(pB);
- write_unlock_irqrestore(&Dl_spinlock, flags);
- I2_COMPLETE(pB, I2EE_GOOD);
- }
-
- write_unlock_irqrestore(&Dl_spinlock, flags);
-
- if (mSdelay-- == 0)
- break;
-
- iiDelay(pB, 1); /* 1 mS granularity on checking condition */
- }
- I2_COMPLETE(pB, I2EE_TXE_TIME);
-}
-
-//******************************************************************************
-// Function: iiWaitForTxEmptyIIEX(pB, mSdelay)
-// Parameters: pB - pointer to board structure
-// mSdelay - period to wait before returning
-//
-// Returns: True if the FIFO is empty.
-// False if it not empty in the required time: the pB->i2eError
-// field has the error.
-//
-// Description:
-//
-// Waits up to "mSdelay" milliseconds for the outgoing FIFO to become empty; if
-// not empty by the required time, returns false and error in pB->i2eError,
-// otherwise returns true.
-//
-// mSdelay == 0 is taken to mean must be empty on the first test.
-//
-// This version operates on IntelliPort-IIEX - style FIFO's
-//
-// Note this routine is organized so that if status is ok there is no delay at
-// all called either before or after the test. Is called indirectly through
-// pB->i2eWaitForTxEmpty.
-//
-//******************************************************************************
-static int
-iiWaitForTxEmptyIIEX(i2eBordStrPtr pB, int mSdelay)
-{
- unsigned long flags;
-
- for (;;)
- {
- // By the nature of this routine, you would be using this as part of a
- // larger atomic context: i.e., you would use this routine to ensure the
- // fifo empty, then act on this information. Between these two halves,
- // you will generally not want to service interrupts or in any way
- // disrupt the assumptions implicit in the larger context.
-
- write_lock_irqsave(&Dl_spinlock, flags);
-
- if (inb(pB->i2eStatus) & STE_OUT_MT) {
- I2_UPDATE_FIFO_ROOM(pB);
- write_unlock_irqrestore(&Dl_spinlock, flags);
- I2_COMPLETE(pB, I2EE_GOOD);
- }
- write_unlock_irqrestore(&Dl_spinlock, flags);
-
- if (mSdelay-- == 0)
- break;
-
- iiDelay(pB, 1); // 1 mS granularity on checking condition
- }
- I2_COMPLETE(pB, I2EE_TXE_TIME);
-}
-
-//******************************************************************************
-// Function: iiTxMailEmptyII(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: True if the transmit mailbox is empty.
-// False if it not empty.
-//
-// Description:
-//
-// Returns true or false according to whether the transmit mailbox is empty (and
-// therefore able to accept more mail)
-//
-// This version operates on IntelliPort-II - style FIFO's
-//
-//******************************************************************************
-static int
-iiTxMailEmptyII(i2eBordStrPtr pB)
-{
- int port = pB->i2ePointer;
- outb(SEL_OUTMAIL, port);
- return inb(port) == 0;
-}
-
-//******************************************************************************
-// Function: iiTxMailEmptyIIEX(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: True if the transmit mailbox is empty.
-// False if it not empty.
-//
-// Description:
-//
-// Returns true or false according to whether the transmit mailbox is empty (and
-// therefore able to accept more mail)
-//
-// This version operates on IntelliPort-IIEX - style FIFO's
-//
-//******************************************************************************
-static int
-iiTxMailEmptyIIEX(i2eBordStrPtr pB)
-{
- return !(inb(pB->i2eStatus) & STE_OUT_MAIL);
-}
-
-//******************************************************************************
-// Function: iiTrySendMailII(pB,mail)
-// Parameters: pB - pointer to board structure
-// mail - value to write to mailbox
-//
-// Returns: True if the transmit mailbox is empty, and mail is sent.
-// False if it not empty.
-//
-// Description:
-//
-// If outgoing mailbox is empty, sends mail and returns true. If outgoing
-// mailbox is not empty, returns false.
-//
-// This version operates on IntelliPort-II - style FIFO's
-//
-//******************************************************************************
-static int
-iiTrySendMailII(i2eBordStrPtr pB, unsigned char mail)
-{
- int port = pB->i2ePointer;
-
- outb(SEL_OUTMAIL, port);
- if (inb(port) == 0) {
- outb(SEL_OUTMAIL, port);
- outb(mail, port);
- return 1;
- }
- return 0;
-}
-
-//******************************************************************************
-// Function: iiTrySendMailIIEX(pB,mail)
-// Parameters: pB - pointer to board structure
-// mail - value to write to mailbox
-//
-// Returns: True if the transmit mailbox is empty, and mail is sent.
-// False if it not empty.
-//
-// Description:
-//
-// If outgoing mailbox is empty, sends mail and returns true. If outgoing
-// mailbox is not empty, returns false.
-//
-// This version operates on IntelliPort-IIEX - style FIFO's
-//
-//******************************************************************************
-static int
-iiTrySendMailIIEX(i2eBordStrPtr pB, unsigned char mail)
-{
- if (inb(pB->i2eStatus) & STE_OUT_MAIL)
- return 0;
- outb(mail, pB->i2eXMail);
- return 1;
-}
-
-//******************************************************************************
-// Function: iiGetMailII(pB,mail)
-// Parameters: pB - pointer to board structure
-//
-// Returns: Mailbox data or NO_MAIL_HERE.
-//
-// Description:
-//
-// If no mail available, returns NO_MAIL_HERE otherwise returns the data from
-// the mailbox, which is guaranteed != NO_MAIL_HERE.
-//
-// This version operates on IntelliPort-II - style FIFO's
-//
-//******************************************************************************
-static unsigned short
-iiGetMailII(i2eBordStrPtr pB)
-{
- if (I2_HAS_MAIL(pB)) {
- outb(SEL_INMAIL, pB->i2ePointer);
- return inb(pB->i2ePointer);
- } else {
- return NO_MAIL_HERE;
- }
-}
-
-//******************************************************************************
-// Function: iiGetMailIIEX(pB,mail)
-// Parameters: pB - pointer to board structure
-//
-// Returns: Mailbox data or NO_MAIL_HERE.
-//
-// Description:
-//
-// If no mail available, returns NO_MAIL_HERE otherwise returns the data from
-// the mailbox, which is guaranteed != NO_MAIL_HERE.
-//
-// This version operates on IntelliPort-IIEX - style FIFO's
-//
-//******************************************************************************
-static unsigned short
-iiGetMailIIEX(i2eBordStrPtr pB)
-{
- if (I2_HAS_MAIL(pB))
- return inb(pB->i2eXMail);
- else
- return NO_MAIL_HERE;
-}
-
-//******************************************************************************
-// Function: iiEnableMailIrqII(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: Nothing
-//
-// Description:
-//
-// Enables board to interrupt host (only) by writing to host's in-bound mailbox.
-//
-// This version operates on IntelliPort-II - style FIFO's
-//
-//******************************************************************************
-static void
-iiEnableMailIrqII(i2eBordStrPtr pB)
-{
- outb(SEL_MASK, pB->i2ePointer);
- outb(ST_IN_MAIL, pB->i2ePointer);
-}
-
-//******************************************************************************
-// Function: iiEnableMailIrqIIEX(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: Nothing
-//
-// Description:
-//
-// Enables board to interrupt host (only) by writing to host's in-bound mailbox.
-//
-// This version operates on IntelliPort-IIEX - style FIFO's
-//
-//******************************************************************************
-static void
-iiEnableMailIrqIIEX(i2eBordStrPtr pB)
-{
- outb(MX_IN_MAIL, pB->i2eXMask);
-}
-
-//******************************************************************************
-// Function: iiWriteMaskII(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: Nothing
-//
-// Description:
-//
-// Writes arbitrary value to the mask register.
-//
-// This version operates on IntelliPort-II - style FIFO's
-//
-//******************************************************************************
-static void
-iiWriteMaskII(i2eBordStrPtr pB, unsigned char value)
-{
- outb(SEL_MASK, pB->i2ePointer);
- outb(value, pB->i2ePointer);
-}
-
-//******************************************************************************
-// Function: iiWriteMaskIIEX(pB)
-// Parameters: pB - pointer to board structure
-//
-// Returns: Nothing
-//
-// Description:
-//
-// Writes arbitrary value to the mask register.
-//
-// This version operates on IntelliPort-IIEX - style FIFO's
-//
-//******************************************************************************
-static void
-iiWriteMaskIIEX(i2eBordStrPtr pB, unsigned char value)
-{
- outb(value, pB->i2eXMask);
-}
-
-//******************************************************************************
-// Function: iiDownloadBlock(pB, pSource, isStandard)
-// Parameters: pB - pointer to board structure
-// pSource - loadware block to download
-// isStandard - True if "standard" loadware, else false.
-//
-// Returns: Success or Failure
-//
-// Description:
-//
-// Downloads a single block (at pSource)to the board referenced by pB. Caller
-// sets isStandard to true/false according to whether the "standard" loadware is
-// what's being loaded. The normal process, then, is to perform an iiInitialize
-// to the board, then perform some number of iiDownloadBlocks using the returned
-// state to determine when download is complete.
-//
-// Possible return values: (see I2ELLIS.H)
-// II_DOWN_BADVALID
-// II_DOWN_BADFILE
-// II_DOWN_CONTINUING
-// II_DOWN_GOOD
-// II_DOWN_BAD
-// II_DOWN_BADSTATE
-// II_DOWN_TIMEOUT
-//
-// Uses the i2eState and i2eToLoad fields (initialized at iiInitialize) to
-// determine whether this is the first block, whether to check for magic
-// numbers, how many blocks there are to go...
-//
-//******************************************************************************
-static int
-iiDownloadBlock ( i2eBordStrPtr pB, loadHdrStrPtr pSource, int isStandard)
-{
- int itemp;
- int loadedFirst;
-
- if (pB->i2eValid != I2E_MAGIC) return II_DOWN_BADVALID;
-
- switch(pB->i2eState)
- {
- case II_STATE_READY:
-
- // Loading the first block after reset. Must check the magic number of the
- // loadfile, store the number of blocks we expect to load.
- if (pSource->e.loadMagic != MAGIC_LOADFILE)
- {
- return II_DOWN_BADFILE;
- }
-
- // Next we store the total number of blocks to load, including this one.
- pB->i2eToLoad = 1 + pSource->e.loadBlocksMore;
-
- // Set the state, store the version numbers. ('Cause this may have come
- // from a file - we might want to report these versions and revisions in
- // case of an error!
- pB->i2eState = II_STATE_LOADING;
- pB->i2eLVersion = pSource->e.loadVersion;
- pB->i2eLRevision = pSource->e.loadRevision;
- pB->i2eLSub = pSource->e.loadSubRevision;
-
- // The time and date of compilation is also available but don't bother
- // storing it for normal purposes.
- loadedFirst = 1;
- break;
-
- case II_STATE_LOADING:
- loadedFirst = 0;
- break;
-
- default:
- return II_DOWN_BADSTATE;
- }
-
- // Now we must be in the II_STATE_LOADING state, and we assume i2eToLoad
- // must be positive still, because otherwise we would have cleaned up last
- // time and set the state to II_STATE_LOADED.
- if (!iiWaitForTxEmpty(pB, MAX_DLOAD_READ_TIME)) {
- return II_DOWN_TIMEOUT;
- }
-
- if (!iiWriteBuf(pB, pSource->c, LOADWARE_BLOCK_SIZE)) {
- return II_DOWN_BADVALID;
- }
-
- // If we just loaded the first block, wait for the fifo to empty an extra
- // long time to allow for any special startup code in the firmware, like
- // sending status messages to the LCD's.
-
- if (loadedFirst) {
- if (!iiWaitForTxEmpty(pB, MAX_DLOAD_START_TIME)) {
- return II_DOWN_TIMEOUT;
- }
- }
-
- // Determine whether this was our last block!
- if (--(pB->i2eToLoad)) {
- return II_DOWN_CONTINUING; // more to come...
- }
-
- // It WAS our last block: Clean up operations...
- // ...Wait for last buffer to drain from the board...
- if (!iiWaitForTxEmpty(pB, MAX_DLOAD_READ_TIME)) {
- return II_DOWN_TIMEOUT;
- }
- // If there were only a single block written, this would come back
- // immediately and be harmless, though not strictly necessary.
- itemp = MAX_DLOAD_ACK_TIME/10;
- while (--itemp) {
- if (I2_HAS_INPUT(pB)) {
- switch (inb(pB->i2eData)) {
- case LOADWARE_OK:
- pB->i2eState =
- isStandard ? II_STATE_STDLOADED :II_STATE_LOADED;
-
- // Some revisions of the bootstrap firmware (e.g. ISA-8 1.0.2)
- // will, // if there is a debug port attached, require some
- // time to send information to the debug port now. It will do
- // this before // executing any of the code we just downloaded.
- // It may take up to 700 milliseconds.
- if (pB->i2ePom.e.porDiag2 & POR_DEBUG_PORT) {
- iiDelay(pB, 700);
- }
-
- return II_DOWN_GOOD;
-
- case LOADWARE_BAD:
- default:
- return II_DOWN_BAD;
- }
- }
-
- iiDelay(pB, 10); // 10 mS granularity on checking condition
- }
-
- // Drop-through --> timed out waiting for firmware confirmation
-
- pB->i2eState = II_STATE_BADLOAD;
- return II_DOWN_TIMEOUT;
-}
-
-//******************************************************************************
-// Function: iiDownloadAll(pB, pSource, isStandard, size)
-// Parameters: pB - pointer to board structure
-// pSource - loadware block to download
-// isStandard - True if "standard" loadware, else false.
-// size - size of data to download (in bytes)
-//
-// Returns: Success or Failure
-//
-// Description:
-//
-// Given a pointer to a board structure, a pointer to the beginning of some
-// loadware, whether it is considered the "standard loadware", and the size of
-// the array in bytes loads the entire array to the board as loadware.
-//
-// Assumes the board has been freshly reset and the power-up reset message read.
-// (i.e., in II_STATE_READY). Complains if state is bad, or if there seems to be
-// too much or too little data to load, or if iiDownloadBlock complains.
-//******************************************************************************
-static int
-iiDownloadAll(i2eBordStrPtr pB, loadHdrStrPtr pSource, int isStandard, int size)
-{
- int status;
-
- // We know (from context) board should be ready for the first block of
- // download. Complain if not.
- if (pB->i2eState != II_STATE_READY) return II_DOWN_BADSTATE;
-
- while (size > 0) {
- size -= LOADWARE_BLOCK_SIZE; // How much data should there be left to
- // load after the following operation ?
-
- // Note we just bump pSource by "one", because its size is actually that
- // of an entire block, same as LOADWARE_BLOCK_SIZE.
- status = iiDownloadBlock(pB, pSource++, isStandard);
-
- switch(status)
- {
- case II_DOWN_GOOD:
- return ( (size > 0) ? II_DOWN_OVER : II_DOWN_GOOD);
-
- case II_DOWN_CONTINUING:
- break;
-
- default:
- return status;
- }
- }
-
- // We shouldn't drop out: it means "while" caught us with nothing left to
- // download, yet the previous DownloadBlock did not return complete. Ergo,
- // not enough data to match the size byte in the header.
- return II_DOWN_UNDER;
-}
diff --git a/drivers/char/ip2/i2ellis.h b/drivers/char/ip2/i2ellis.h
deleted file mode 100644
index fb6df245601..00000000000
--- a/drivers/char/ip2/i2ellis.h
+++ /dev/null
@@ -1,566 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1999 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Mainline code for the device driver
-*
-*******************************************************************************/
-//------------------------------------------------------------------------------
-// i2ellis.h
-//
-// IntelliPort-II and IntelliPort-IIEX
-//
-// Extremely
-// Low
-// Level
-// Interface
-// Services
-//
-// Structure Definitions and declarations for "ELLIS" service routines found in
-// i2ellis.c
-//
-// These routines are based on properties of the IntelliPort-II and -IIEX
-// hardware and bootstrap firmware, and are not sensitive to particular
-// conventions of any particular loadware.
-//
-// Unlike i2hw.h, which provides IRONCLAD hardware definitions, the material
-// here and in i2ellis.c is intended to provice a useful, but not required,
-// layer of insulation from the hardware specifics.
-//------------------------------------------------------------------------------
-#ifndef I2ELLIS_H /* To prevent multiple includes */
-#define I2ELLIS_H 1
-//------------------------------------------------
-// Revision History:
-//
-// 30 September 1991 MAG First Draft Started
-// 12 October 1991 ...continued...
-//
-// 20 December 1996 AKM Linux version
-//-------------------------------------------------
-
-//----------------------
-// Mandatory Includes:
-//----------------------
-#include "ip2types.h"
-#include "i2hw.h" // The hardware definitions
-
-//------------------------------------------
-// STAT_BOXIDS packets
-//------------------------------------------
-#define MAX_BOX 4
-
-typedef struct _bidStat
-{
- unsigned char bid_value[MAX_BOX];
-} bidStat, *bidStatPtr;
-
-// This packet is sent in response to a CMD_GET_BOXIDS bypass command. For -IIEX
-// boards, reports the hardware-specific "asynchronous resource register" on
-// each expansion box. Boxes not present report 0xff. For -II boards, the first
-// element contains 0x80 for 8-port, 0x40 for 4-port boards.
-
-// Box IDs aka ARR or Async Resource Register (more than you want to know)
-// 7 6 5 4 3 2 1 0
-// F F N N L S S S
-// =============================
-// F F - Product Family Designator
-// =====+++++++++++++++++++++++++++++++
-// 0 0 - Intelliport II EX / ISA-8
-// 1 0 - IntelliServer
-// 0 1 - SAC - Port Device (Intelliport III ??? )
-// =====+++++++++++++++++++++++++++++++++++++++
-// N N - Number of Ports
-// 0 0 - 8 (eight)
-// 0 1 - 4 (four)
-// 1 0 - 12 (twelve)
-// 1 1 - 16 (sixteen)
-// =++++++++++++++++++++++++++++++++++
-// L - LCD Display Module Present
-// 0 - No
-// 1 - LCD module present
-// =========+++++++++++++++++++++++++++++++++++++
-// S S S - Async Signals Supported Designator
-// 0 0 0 - 8dss, Mod DCE DB25 Female
-// 0 0 1 - 6dss, RJ-45
-// 0 1 0 - RS-232/422 dss, DB25 Female
-// 0 1 1 - RS-232/422 dss, separate 232/422 DB25 Female
-// 1 0 0 - 6dss, 921.6 I/F with ST654's
-// 1 0 1 - RS-423/232 8dss, RJ-45 10Pin
-// 1 1 0 - 6dss, Mod DCE DB25 Female
-// 1 1 1 - NO BOX PRESENT
-
-#define FF(c) ((c & 0xC0) >> 6)
-#define NN(c) ((c & 0x30) >> 4)
-#define L(c) ((c & 0x08) >> 3)
-#define SSS(c) (c & 0x07)
-
-#define BID_HAS_654(x) (SSS(x) == 0x04)
-#define BID_NO_BOX 0xff /* no box */
-#define BID_8PORT 0x80 /* IP2-8 port */
-#define BID_4PORT 0x81 /* IP2-4 port */
-#define BID_EXP_MASK 0x30 /* IP2-EX */
-#define BID_EXP_8PORT 0x00 /* 8, */
-#define BID_EXP_4PORT 0x10 /* 4, */
-#define BID_EXP_UNDEF 0x20 /* UNDEF, */
-#define BID_EXP_16PORT 0x30 /* 16, */
-#define BID_LCD_CTRL 0x08 /* LCD Controller */
-#define BID_LCD_NONE 0x00 /* - no controller present */
-#define BID_LCD_PRES 0x08 /* - controller present */
-#define BID_CON_MASK 0x07 /* - connector pinouts */
-#define BID_CON_DB25 0x00 /* - DB-25 F */
-#define BID_CON_RJ45 0x01 /* - rj45 */
-
-//------------------------------------------------------------------------------
-// i2eBordStr
-//
-// This structure contains all the information the ELLIS routines require in
-// dealing with a particular board.
-//------------------------------------------------------------------------------
-// There are some queues here which are guaranteed to never contain the entry
-// for a single channel twice. So they must be slightly larger to allow
-// unambiguous full/empty management
-//
-#define CH_QUEUE_SIZE ABS_MOST_PORTS+2
-
-typedef struct _i2eBordStr
-{
- porStr i2ePom; // Structure containing the power-on message.
-
- unsigned short i2ePomSize;
- // The number of bytes actually read if
- // different from sizeof i2ePom, indicates
- // there is an error!
-
- unsigned short i2eStartMail;
- // Contains whatever inbound mailbox data
- // present at startup. NO_MAIL_HERE indicates
- // nothing was present. No special
- // significance as of this writing, but may be
- // useful for diagnostic reasons.
-
- unsigned short i2eValid;
- // Indicates validity of the structure; if
- // i2eValid == I2E_MAGIC, then we can trust
- // the other fields. Some (especially
- // initialization) functions are good about
- // checking for validity. Many functions do
- // not, it being assumed that the larger
- // context assures we are using a valid
- // i2eBordStrPtr.
-
- unsigned short i2eError;
- // Used for returning an error condition from
- // several functions which use i2eBordStrPtr
- // as an argument.
-
- // Accelerators to characterize separate features of a board, derived from a
- // number of sources.
-
- unsigned short i2eFifoSize;
- // Always, the size of the FIFO. For
- // IntelliPort-II, always the same, for -IIEX
- // taken from the Power-On reset message.
-
- volatile
- unsigned short i2eFifoRemains;
- // Used during normal operation to indicate a
- // lower bound on the amount of data which
- // might be in the outbound fifo.
-
- unsigned char i2eFifoStyle;
- // Accelerator which tells which style (-II or
- // -IIEX) FIFO we are using.
-
- unsigned char i2eDataWidth16;
- // Accelerator which tells whether we should
- // do 8 or 16-bit data transfers.
-
- unsigned char i2eMaxIrq;
- // The highest allowable IRQ, based on the
- // slot size.
-
- // Accelerators for various addresses on the board
- int i2eBase; // I/O Address of the Board
- int i2eData; // From here data transfers happen
- int i2eStatus; // From here status reads happen
- int i2ePointer; // (IntelliPort-II: pointer/commands)
- int i2eXMail; // (IntelliPOrt-IIEX: mailboxes
- int i2eXMask; // (IntelliPort-IIEX: mask write
-
- //-------------------------------------------------------
- // Information presented in a common format across boards
- // For each box, bit map of the channels present. Box closest to
- // the host is box 0. LSB is channel 0. IntelliPort-II (non-expandable)
- // is taken to be box 0. These are derived from product i.d. registers.
-
- unsigned short i2eChannelMap[ABS_MAX_BOXES];
-
- // Same as above, except each is derived from firmware attempting to detect
- // the uart presence (by reading a valid GFRCR register). If bits are set in
- // i2eChannelMap and not in i2eGoodMap, there is a potential problem.
-
- unsigned short i2eGoodMap[ABS_MAX_BOXES];
-
- // ---------------------------
- // For indirect function calls
-
- // Routine to cause an N-millisecond delay: Patched by the ii2Initialize
- // function.
-
- void (*i2eDelay)(unsigned int);
-
- // Routine to write N bytes to the board through the FIFO. Returns true if
- // all copacetic, otherwise returns false and error is in i2eError field.
- // IF COUNT IS ODD, ROUNDS UP TO THE NEXT EVEN NUMBER.
-
- int (*i2eWriteBuf)(struct _i2eBordStr *, unsigned char *, int);
-
- // Routine to read N bytes from the board through the FIFO. Returns true if
- // copacetic, otherwise returns false and error in i2eError.
- // IF COUNT IS ODD, ROUNDS UP TO THE NEXT EVEN NUMBER.
-
- int (*i2eReadBuf)(struct _i2eBordStr *, unsigned char *, int);
-
- // Returns a word from FIFO. Will use 2 byte operations if needed.
-
- unsigned short (*i2eReadWord)(struct _i2eBordStr *);
-
- // Writes a word to FIFO. Will use 2 byte operations if needed.
-
- void (*i2eWriteWord)(struct _i2eBordStr *, unsigned short);
-
- // Waits specified time for the Transmit FIFO to go empty. Returns true if
- // ok, otherwise returns false and error in i2eError.
-
- int (*i2eWaitForTxEmpty)(struct _i2eBordStr *, int);
-
- // Returns true or false according to whether the outgoing mailbox is empty.
-
- int (*i2eTxMailEmpty)(struct _i2eBordStr *);
-
- // Checks whether outgoing mailbox is empty. If so, sends mail and returns
- // true. Otherwise returns false.
-
- int (*i2eTrySendMail)(struct _i2eBordStr *, unsigned char);
-
- // If no mail available, returns NO_MAIL_HERE, else returns the value in the
- // mailbox (guaranteed can't be NO_MAIL_HERE).
-
- unsigned short (*i2eGetMail)(struct _i2eBordStr *);
-
- // Enables the board to interrupt the host when it writes to the mailbox.
- // Irqs will not occur, however, until the loadware separately enables
- // interrupt generation to the host. The standard loadware does this in
- // response to a command packet sent by the host. (Also, disables
- // any other potential interrupt sources from the board -- other than the
- // inbound mailbox).
-
- void (*i2eEnableMailIrq)(struct _i2eBordStr *);
-
- // Writes an arbitrary value to the mask register.
-
- void (*i2eWriteMask)(struct _i2eBordStr *, unsigned char);
-
-
- // State information
-
- // During downloading, indicates the number of blocks remaining to download
- // to the board.
-
- short i2eToLoad;
-
- // State of board (see manifests below) (e.g., whether in reset condition,
- // whether standard loadware is installed, etc.
-
- unsigned char i2eState;
-
- // These three fields are only valid when there is loadware running on the
- // board. (i2eState == II_STATE_LOADED or i2eState == II_STATE_STDLOADED )
-
- unsigned char i2eLVersion; // Loadware version
- unsigned char i2eLRevision; // Loadware revision
- unsigned char i2eLSub; // Loadware subrevision
-
- // Flags which only have meaning in the context of the standard loadware.
- // Somewhat violates the layering concept, but there is so little additional
- // needed at the board level (while much additional at the channel level),
- // that this beats maintaining two different per-board structures.
-
- // Indicates which IRQ the board has been initialized (from software) to use
- // For MicroChannel boards, any value different from IRQ_UNDEFINED means
- // that the software command has been sent to enable interrupts (or specify
- // they are disabled). Special value: IRQ_UNDEFINED indicates that the
- // software command to select the interrupt has not yet been sent, therefore
- // (since the standard loadware insists that it be sent before any other
- // packets are sent) no other packets should be sent yet.
-
- unsigned short i2eUsingIrq;
-
- // This is set when we hit the MB_OUT_STUFFED mailbox, which prevents us
- // putting more in the mailbox until an appropriate mailbox message is
- // received.
-
- unsigned char i2eWaitingForEmptyFifo;
-
- // Any mailbox bits waiting to be sent to the board are OR'ed in here.
-
- unsigned char i2eOutMailWaiting;
-
- // The head of any incoming packet is read into here, is then examined and
- // we dispatch accordingly.
-
- unsigned short i2eLeadoffWord[1];
-
- // Running counter of interrupts where the mailbox indicated incoming data.
-
- unsigned short i2eFifoInInts;
-
- // Running counter of interrupts where the mailbox indicated outgoing data
- // had been stripped.
-
- unsigned short i2eFifoOutInts;
-
- // If not void, gives the address of a routine to call if fatal board error
- // is found (only applies to standard l/w).
-
- void (*i2eFatalTrap)(struct _i2eBordStr *);
-
- // Will point to an array of some sort of channel structures (whose format
- // is unknown at this level, being a function of what loadware is
- // installed and the code configuration (max sizes of buffers, etc.)).
-
- void *i2eChannelPtr;
-
- // Set indicates that the board has gone fatal.
-
- unsigned short i2eFatal;
-
- // The number of elements pointed to by i2eChannelPtr.
-
- unsigned short i2eChannelCnt;
-
- // Ring-buffers of channel structures whose channels have particular needs.
-
- rwlock_t Fbuf_spinlock;
- volatile
- unsigned short i2Fbuf_strip; // Strip index
- volatile
- unsigned short i2Fbuf_stuff; // Stuff index
- void *i2Fbuf[CH_QUEUE_SIZE]; // An array of channel pointers
- // of channels who need to send
- // flow control packets.
- rwlock_t Dbuf_spinlock;
- volatile
- unsigned short i2Dbuf_strip; // Strip index
- volatile
- unsigned short i2Dbuf_stuff; // Stuff index
- void *i2Dbuf[CH_QUEUE_SIZE]; // An array of channel pointers
- // of channels who need to send
- // data or in-line command packets.
- rwlock_t Bbuf_spinlock;
- volatile
- unsigned short i2Bbuf_strip; // Strip index
- volatile
- unsigned short i2Bbuf_stuff; // Stuff index
- void *i2Bbuf[CH_QUEUE_SIZE]; // An array of channel pointers
- // of channels who need to send
- // bypass command packets.
-
- /*
- * A set of flags to indicate that certain events have occurred on at least
- * one of the ports on this board. We use this to decide whether to spin
- * through the channels looking for breaks, etc.
- */
- int got_input;
- int status_change;
- bidStat channelBtypes;
-
- /*
- * Debugging counters, etc.
- */
- unsigned long debugFlowQueued;
- unsigned long debugInlineQueued;
- unsigned long debugDataQueued;
- unsigned long debugBypassQueued;
- unsigned long debugFlowCount;
- unsigned long debugInlineCount;
- unsigned long debugBypassCount;
-
- rwlock_t read_fifo_spinlock;
- rwlock_t write_fifo_spinlock;
-
-// For queuing interrupt bottom half handlers. /\/\|=mhw=|\/\/
- struct work_struct tqueue_interrupt;
-
- struct timer_list SendPendingTimer; // Used by iiSendPending
- unsigned int SendPendingRetry;
-} i2eBordStr, *i2eBordStrPtr;
-
-//-------------------------------------------------------------------
-// Macro Definitions for the indirect calls defined in the i2eBordStr
-//-------------------------------------------------------------------
-//
-#define iiDelay(a,b) (*(a)->i2eDelay)(b)
-#define iiWriteBuf(a,b,c) (*(a)->i2eWriteBuf)(a,b,c)
-#define iiReadBuf(a,b,c) (*(a)->i2eReadBuf)(a,b,c)
-
-#define iiWriteWord(a,b) (*(a)->i2eWriteWord)(a,b)
-#define iiReadWord(a) (*(a)->i2eReadWord)(a)
-
-#define iiWaitForTxEmpty(a,b) (*(a)->i2eWaitForTxEmpty)(a,b)
-
-#define iiTxMailEmpty(a) (*(a)->i2eTxMailEmpty)(a)
-#define iiTrySendMail(a,b) (*(a)->i2eTrySendMail)(a,b)
-
-#define iiGetMail(a) (*(a)->i2eGetMail)(a)
-#define iiEnableMailIrq(a) (*(a)->i2eEnableMailIrq)(a)
-#define iiDisableMailIrq(a) (*(a)->i2eWriteMask)(a,0)
-#define iiWriteMask(a,b) (*(a)->i2eWriteMask)(a,b)
-
-//-------------------------------------------
-// Manifests for i2eBordStr:
-//-------------------------------------------
-
-typedef void (*delayFunc_t)(unsigned int);
-
-// i2eValid
-//
-#define I2E_MAGIC 0x4251 // Structure is valid.
-#define I2E_INCOMPLETE 0x1122 // Structure failed during init.
-
-
-// i2eError
-//
-#define I2EE_GOOD 0 // Operation successful
-#define I2EE_BADADDR 1 // Address out of range
-#define I2EE_BADSTATE 2 // Attempt to perform a function when the board
- // structure was in the incorrect state
-#define I2EE_BADMAGIC 3 // Bad magic number from Power On test (i2ePomSize
- // reflects what was read
-#define I2EE_PORM_SHORT 4 // Power On message too short
-#define I2EE_PORM_LONG 5 // Power On message too long
-#define I2EE_BAD_FAMILY 6 // Un-supported board family type
-#define I2EE_INCONSIST 7 // Firmware reports something impossible,
- // e.g. unexpected number of ports... Almost no
- // excuse other than bad FIFO...
-#define I2EE_POSTERR 8 // Power-On self test reported a bad error
-#define I2EE_BADBUS 9 // Unknown Bus type declared in message
-#define I2EE_TXE_TIME 10 // Timed out waiting for TX Fifo to empty
-#define I2EE_INVALID 11 // i2eValid field does not indicate a valid and
- // complete board structure (for functions which
- // require this be so.)
-#define I2EE_BAD_PORT 12 // Discrepancy between channels actually found and
- // what the product is supposed to have. Check
- // i2eGoodMap vs i2eChannelMap for details.
-#define I2EE_BAD_IRQ 13 // Someone specified an unsupported IRQ
-#define I2EE_NOCHANNELS 14 // No channel structures have been defined (for
- // functions requiring this).
-
-// i2eFifoStyle
-//
-#define FIFO_II 0 /* IntelliPort-II style: see also i2hw.h */
-#define FIFO_IIEX 1 /* IntelliPort-IIEX style */
-
-// i2eGetMail
-//
-#define NO_MAIL_HERE 0x1111 // Since mail is unsigned char, cannot possibly
- // promote to 0x1111.
-// i2eState
-//
-#define II_STATE_COLD 0 // Addresses have been defined, but board not even
- // reset yet.
-#define II_STATE_RESET 1 // Board,if it exists, has just been reset
-#define II_STATE_READY 2 // Board ready for its first block
-#define II_STATE_LOADING 3 // Board continuing load
-#define II_STATE_LOADED 4 // Board has finished load: status ok
-#define II_STATE_BADLOAD 5 // Board has finished load: failed!
-#define II_STATE_STDLOADED 6 // Board has finished load: standard firmware
-
-// i2eUsingIrq
-//
-#define I2_IRQ_UNDEFINED 0x1352 /* No valid irq (or polling = 0) can
- * ever promote to this! */
-//------------------------------------------
-// Handy Macros for i2ellis.c and others
-// Note these are common to -II and -IIEX
-//------------------------------------------
-
-// Given a pointer to the board structure, does the input FIFO have any data or
-// not?
-//
-#define I2_HAS_INPUT(pB) !(inb(pB->i2eStatus) & ST_IN_EMPTY)
-
-// Given a pointer to the board structure, is there anything in the incoming
-// mailbox?
-//
-#define I2_HAS_MAIL(pB) (inb(pB->i2eStatus) & ST_IN_MAIL)
-
-#define I2_UPDATE_FIFO_ROOM(pB) ((pB)->i2eFifoRemains = (pB)->i2eFifoSize)
-
-//------------------------------------------
-// Function Declarations for i2ellis.c
-//------------------------------------------
-//
-// Functions called directly
-//
-// Initialization of a board & structure is in four (five!) parts:
-//
-// 1) iiSetAddress() - Define the board address & delay function for a board.
-// 2) iiReset() - Reset the board (provided it exists)
-// -- Note you may do this to several boards --
-// 3) iiResetDelay() - Delay for 2 seconds (once for all boards)
-// 4) iiInitialize() - Attempt to read Power-up message; further initialize
-// accelerators
-//
-// Then you may use iiDownloadAll() or iiDownloadFile() (in i2file.c) to write
-// loadware. To change loadware, you must begin again with step 2, resetting
-// the board again (step 1 not needed).
-
-static int iiSetAddress(i2eBordStrPtr, int, delayFunc_t );
-static int iiReset(i2eBordStrPtr);
-static int iiResetDelay(i2eBordStrPtr);
-static int iiInitialize(i2eBordStrPtr);
-
-// Routine to validate that all channels expected are there.
-//
-extern int iiValidateChannels(i2eBordStrPtr);
-
-// Routine used to download a block of loadware.
-//
-static int iiDownloadBlock(i2eBordStrPtr, loadHdrStrPtr, int);
-
-// Return values given by iiDownloadBlock, iiDownloadAll, iiDownloadFile:
-//
-#define II_DOWN_BADVALID 0 // board structure is invalid
-#define II_DOWN_CONTINUING 1 // So far, so good, firmware expects more
-#define II_DOWN_GOOD 2 // Download complete, CRC good
-#define II_DOWN_BAD 3 // Download complete, but CRC bad
-#define II_DOWN_BADFILE 4 // Bad magic number in loadware file
-#define II_DOWN_BADSTATE 5 // Board is in an inappropriate state for
- // downloading loadware. (see i2eState)
-#define II_DOWN_TIMEOUT 6 // Timeout waiting for firmware
-#define II_DOWN_OVER 7 // Too much data
-#define II_DOWN_UNDER 8 // Not enough data
-#define II_DOWN_NOFILE 9 // Loadware file not found
-
-// Routine to download an entire loadware module: Return values are a subset of
-// iiDownloadBlock's, excluding, of course, II_DOWN_CONTINUING
-//
-static int iiDownloadAll(i2eBordStrPtr, loadHdrStrPtr, int, int);
-
-// Many functions defined here return True if good, False otherwise, with an
-// error code in i2eError field. Here is a handy macro for setting the error
-// code and returning.
-//
-#define I2_COMPLETE(pB,code) do { \
- pB->i2eError = code; \
- return (code == I2EE_GOOD);\
- } while (0)
-
-#endif // I2ELLIS_H
diff --git a/drivers/char/ip2/i2hw.h b/drivers/char/ip2/i2hw.h
deleted file mode 100644
index c0ba6c05f0c..00000000000
--- a/drivers/char/ip2/i2hw.h
+++ /dev/null
@@ -1,652 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1999 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Definitions limited to properties of the hardware or the
-* bootstrap firmware. As such, they are applicable regardless of
-* operating system or loadware (standard or diagnostic).
-*
-*******************************************************************************/
-#ifndef I2HW_H
-#define I2HW_H 1
-//------------------------------------------------------------------------------
-// Revision History:
-//
-// 23 September 1991 MAG First Draft Started...through...
-// 11 October 1991 ... Continuing development...
-// 6 August 1993 Added support for ISA-4 (asic) which is architected
-// as an ISA-CEX with a single 4-port box.
-//
-// 20 December 1996 AKM Version for Linux
-//
-//------------------------------------------------------------------------------
-/*------------------------------------------------------------------------------
-
-HARDWARE DESCRIPTION:
-
-Introduction:
-
-The IntelliPort-II and IntelliPort-IIEX products occupy a block of eight (8)
-addresses in the host's I/O space.
-
-Some addresses are used to transfer data to/from the board, some to transfer
-so-called "mailbox" messages, and some to read bit-mapped status information.
-While all the products in the line are functionally similar, some use a 16-bit
-data path to transfer data while others use an 8-bit path. Also, the use of
-command /status/mailbox registers differs slightly between the II and IIEX
-branches of the family.
-
-The host determines what type of board it is dealing with by reading a string of
-sixteen characters from the board. These characters are always placed in the
-fifo by the board's local processor whenever the board is reset (either from
-power-on or under software control) and are known as the "Power-on Reset
-Message." In order that this message can be read from either type of board, the
-hardware registers used in reading this message are the same. Once this message
-has been read by the host, then it has the information required to operate.
-
-General Differences between boards:
-
-The greatest structural difference is between the -II and -IIEX families of
-product. The -II boards use the Am4701 dual 512x8 bidirectional fifo to support
-the data path, mailbox registers, and status registers. This chip contains some
-features which are not used in the IntelliPort-II products; a description of
-these is omitted here. Because of these many features, it contains many
-registers, too many to access directly within a small address space. They are
-accessed by first writing a value to a "pointer" register. This value selects
-the register to be accessed. The next read or write to that address accesses
-the selected register rather than the pointer register.
-
-The -IIEX boards use a proprietary design similar to the Am4701 in function. But
-because of a simpler, more streamlined design it doesn't require so many
-registers. This means they can be accessed directly in single operations rather
-than through a pointer register.
-
-Besides these differences, there are differences in whether 8-bit or 16-bit
-transfers are used to move data to the board.
-
-The -II boards are capable only of 8-bit data transfers, while the -IIEX boards
-may be configured for either 8-bit or 16-bit data transfers. If the on-board DIP
-switch #8 is ON, and the card has been installed in a 16-bit slot, 16-bit
-transfers are supported (and will be expected by the standard loadware). The
-on-board firmware can determine the position of the switch, and whether the
-board is installed in a 16-bit slot; it supplies this information to the host as
-part of the power-up reset message.
-
-The configuration switch (#8) and slot selection do not directly configure the
-hardware. It is up to the on-board loadware and host-based drivers to act
-according to the selected options. That is, loadware and drivers could be
-written to perform 8-bit transfers regardless of the state of the DIP switch or
-slot (and in a diagnostic environment might well do so). Likewise, 16-bit
-transfers could be performed as long as the card is in a 16-bit slot.
-
-Note the slot selection and DIP switch selection are provided separately: a
-board running in 8-bit mode in a 16-bit slot has a greater range of possible
-interrupts to choose from; information of potential use to the host.
-
-All 8-bit data transfers are done in the same way, regardless of whether on a
--II board or a -IIEX board.
-
-The host must consider two things then: 1) whether a -II or -IIEX product is
-being used, and 2) whether an 8-bit or 16-bit data path is used.
-
-A further difference is that -II boards always have a 512-byte fifo operating in
-each direction. -IIEX boards may use fifos of varying size; this size is
-reported as part of the power-up message.
-
-I/O Map Of IntelliPort-II and IntelliPort-IIEX boards:
-(Relative to the chosen base address)
-
-Addr R/W IntelliPort-II IntelliPort-IIEX
----- --- -------------- ----------------
-0 R/W Data Port (byte) Data Port (byte or word)
-1 R/W (Not used) (MSB of word-wide data written to Data Port)
-2 R Status Register Status Register
-2 W Pointer Register Interrupt Mask Register
-3 R/W (Not used) Mailbox Registers (6 bits: 11111100)
-4,5 -- Reserved for future products
-6 -- Reserved for future products
-7 R Guaranteed to have no effect
-7 W Hardware reset of board.
-
-
-Rules:
-All data transfers are performed using the even i/o address. If byte-wide data
-transfers are being used, do INB/OUTB operations on the data port. If word-wide
-transfers are used, do INW/OUTW operations. In some circumstances (such as
-reading the power-up message) you will do INB from the data port, but in this
-case the MSB of each word read is lost. When accessing all other unreserved
-registers, use byte operations only.
-------------------------------------------------------------------------------*/
-
-//------------------------------------------------
-// Mandatory Includes:
-//------------------------------------------------
-//
-#include "ip2types.h"
-
-//-------------------------------------------------------------------------
-// Manifests for the I/O map:
-//-------------------------------------------------------------------------
-// R/W: Data port (byte) for IntelliPort-II,
-// R/W: Data port (byte or word) for IntelliPort-IIEX
-// Incoming or outgoing data passes through a FIFO, the status of which is
-// available in some of the bits in FIFO_STATUS. This (bidirectional) FIFO is
-// the primary means of transferring data, commands, flow-control, and status
-// information between the host and board.
-//
-#define FIFO_DATA 0
-
-// Another way of passing information between the board and the host is
-// through "mailboxes". Unlike a FIFO, a mailbox holds only a single byte of
-// data. Writing data to the mailbox causes a status bit to be set, and
-// potentially interrupting the intended receiver. The sender has some way to
-// determine whether the data has been read yet; as soon as it has, it may send
-// more. The mailboxes are handled differently on -II and -IIEX products, as
-// suggested below.
-//------------------------------------------------------------------------------
-// Read: Status Register for IntelliPort-II or -IIEX
-// The presence of any bit set here will cause an interrupt to the host,
-// provided the corresponding bit has been unmasked in the interrupt mask
-// register. Furthermore, interrupts to the host are disabled globally until the
-// loadware selects the irq line to use. With the exception of STN_MR, the bits
-// remain set so long as the associated condition is true.
-//
-#define FIFO_STATUS 2
-
-// Bit map of status bits which are identical for -II and -IIEX
-//
-#define ST_OUT_FULL 0x40 // Outbound FIFO full
-#define ST_IN_EMPTY 0x20 // Inbound FIFO empty
-#define ST_IN_MAIL 0x04 // Inbound Mailbox full
-
-// The following exists only on the Intelliport-IIEX, and indicates that the
-// board has not read the last outgoing mailbox data yet. In the IntelliPort-II,
-// the outgoing mailbox may be read back: a zero indicates the board has read
-// the data.
-//
-#define STE_OUT_MAIL 0x80 // Outbound mailbox full (!)
-
-// The following bits are defined differently for -II and -IIEX boards. Code
-// which relies on these bits will need to be functionally different for the two
-// types of boards and should be generally avoided because of the additional
-// complexity this creates:
-
-// Bit map of status bits only on -II
-
-// Fifo has been RESET (cleared when the status register is read). Note that
-// this condition cannot be masked and would always interrupt the host, except
-// that the hardware reset also disables interrupts globally from the board
-// until re-enabled by loadware. This could also arise from the
-// Am4701-supported command to reset the chip, but this command is generally not
-// used here.
-//
-#define STN_MR 0x80
-
-// See the AMD Am4701 data sheet for details on the following four bits. They
-// are not presently used by Computone drivers.
-//
-#define STN_OUT_AF 0x10 // Outbound FIFO almost full (programmable)
-#define STN_IN_AE 0x08 // Inbound FIFO almost empty (programmable)
-#define STN_BD 0x02 // Inbound byte detected
-#define STN_PE 0x01 // Parity/Framing condition detected
-
-// Bit-map of status bits only on -IIEX
-//
-#define STE_OUT_HF 0x10 // Outbound FIFO half full
-#define STE_IN_HF 0x08 // Inbound FIFO half full
-#define STE_IN_FULL 0x02 // Inbound FIFO full
-#define STE_OUT_MT 0x01 // Outbound FIFO empty
-
-//------------------------------------------------------------------------------
-
-// Intelliport-II -- Write Only: the pointer register.
-// Values are written to this register to select the Am4701 internal register to
-// be accessed on the next operation.
-//
-#define FIFO_PTR 0x02
-
-// Values for the pointer register
-//
-#define SEL_COMMAND 0x1 // Selects the Am4701 command register
-
-// Some possible commands:
-//
-#define SEL_CMD_MR 0x80 // Am4701 command to reset the chip
-#define SEL_CMD_SH 0x40 // Am4701 command to map the "other" port into the
- // status register.
-#define SEL_CMD_UNSH 0 // Am4701 command to "unshift": port maps into its
- // own status register.
-#define SEL_MASK 0x2 // Selects the Am4701 interrupt mask register. The
- // interrupt mask register is bit-mapped to match
- // the status register (FIFO_STATUS) except for
- // STN_MR. (See above.)
-#define SEL_BYTE_DET 0x3 // Selects the Am4701 byte-detect register. (Not
- // normally used except in diagnostics.)
-#define SEL_OUTMAIL 0x4 // Selects the outbound mailbox (R/W). Reading back
- // a value of zero indicates that the mailbox has
- // been read by the board and is available for more
- // data./ Writing to the mailbox optionally
- // interrupts the board, depending on the loadware's
- // setting of its interrupt mask register.
-#define SEL_AEAF 0x5 // Selects AE/AF threshold register.
-#define SEL_INMAIL 0x6 // Selects the inbound mailbox (Read)
-
-//------------------------------------------------------------------------------
-// IntelliPort-IIEX -- Write Only: interrupt mask (and misc flags) register:
-// Unlike IntelliPort-II, bit assignments do NOT match those of the status
-// register.
-//
-#define FIFO_MASK 0x2
-
-// Mailbox readback select:
-// If set, reads to FIFO_MAIL will read the OUTBOUND mailbox (host to board). If
-// clear (default on reset) reads to FIFO_MAIL will read the INBOUND mailbox.
-// This is the normal situation. The clearing of a mailbox is determined on
-// -IIEX boards by waiting for the STE_OUT_MAIL bit to clear. Readback
-// capability is provided for diagnostic purposes only.
-//
-#define MX_OUTMAIL_RSEL 0x80
-
-#define MX_IN_MAIL 0x40 // Enables interrupts when incoming mailbox goes
- // full (ST_IN_MAIL set).
-#define MX_IN_FULL 0x20 // Enables interrupts when incoming FIFO goes full
- // (STE_IN_FULL).
-#define MX_IN_MT 0x08 // Enables interrupts when incoming FIFO goes empty
- // (ST_IN_MT).
-#define MX_OUT_FULL 0x04 // Enables interrupts when outgoing FIFO goes full
- // (ST_OUT_FULL).
-#define MX_OUT_MT 0x01 // Enables interrupts when outgoing FIFO goes empty
- // (STE_OUT_MT).
-
-// Any remaining bits are reserved, and should be written to ZERO for
-// compatibility with future Computone products.
-
-//------------------------------------------------------------------------------
-// IntelliPort-IIEX: -- These are only 6-bit mailboxes !!! -- 11111100 (low two
-// bits always read back 0).
-// Read: One of the mailboxes, usually Inbound.
-// Inbound Mailbox (MX_OUTMAIL_RSEL = 0)
-// Outbound Mailbox (MX_OUTMAIL_RSEL = 1)
-// Write: Outbound Mailbox
-// For the IntelliPort-II boards, the outbound mailbox is read back to determine
-// whether the board has read the data (0 --> data has been read). For the
-// IntelliPort-IIEX, this is done by reading a status register. To determine
-// whether mailbox is available for more outbound data, use the STE_OUT_MAIL bit
-// in FIFO_STATUS. Moreover, although the Outbound Mailbox can be read back by
-// setting MX_OUTMAIL_RSEL, it is NOT cleared when the board reads it, as is the
-// case with the -II boards. For this reason, FIFO_MAIL is normally used to read
-// the inbound FIFO, and MX_OUTMAIL_RSEL kept clear. (See above for
-// MX_OUTMAIL_RSEL description.)
-//
-#define FIFO_MAIL 0x3
-
-//------------------------------------------------------------------------------
-// WRITE ONLY: Resets the board. (Data doesn't matter).
-//
-#define FIFO_RESET 0x7
-
-//------------------------------------------------------------------------------
-// READ ONLY: Will have no effect. (Data is undefined.)
-// Actually, there will be an effect, in that the operation is sure to generate
-// a bus cycle: viz., an I/O byte Read. This fact can be used to enforce short
-// delays when no comparable time constant is available.
-//
-#define FIFO_NOP 0x7
-
-//------------------------------------------------------------------------------
-// RESET & POWER-ON RESET MESSAGE
-/*------------------------------------------------------------------------------
-RESET:
-
-The IntelliPort-II and -IIEX boards are reset in three ways: Power-up, channel
-reset, and via a write to the reset register described above. For products using
-the ISA bus, these three sources of reset are equvalent. For MCA and EISA buses,
-the Power-up and channel reset sources cause additional hardware initialization
-which should only occur at system startup time.
-
-The third type of reset, called a "command reset", is done by writing any data
-to the FIFO_RESET address described above. This resets the on-board processor,
-FIFO, UARTS, and associated hardware.
-
-This passes control of the board to the bootstrap firmware, which performs a
-Power-On Self Test and which detects its current configuration. For example,
--IIEX products determine the size of FIFO which has been installed, and the
-number and type of expansion boxes attached.
-
-This and other information is then written to the FIFO in a 16-byte data block
-to be read by the host. This block is guaranteed to be present within two (2)
-seconds of having received the command reset. The firmware is now ready to
-receive loadware from the host.
-
-It is good practice to perform a command reset to the board explicitly as part
-of your software initialization. This allows your code to properly restart from
-a soft boot. (Many systems do not issue channel reset on soft boot).
-
-Because of a hardware reset problem on some of the Cirrus Logic 1400's which are
-used on the product, it is recommended that you reset the board twice, separated
-by an approximately 50 milliseconds delay. (VERY approximately: probably ok to
-be off by a factor of five. The important point is that the first command reset
-in fact generates a reset pulse on the board. This pulse is guaranteed to last
-less than 10 milliseconds. The additional delay ensures the 1400 has had the
-chance to respond sufficiently to the first reset. Why not a longer delay? Much
-more than 50 milliseconds gets to be noticable, but the board would still work.
-
-Once all 16 bytes of the Power-on Reset Message have been read, the bootstrap
-firmware is ready to receive loadware.
-
-Note on Power-on Reset Message format:
-The various fields have been designed with future expansion in view.
-Combinations of bitfields and values have been defined which define products
-which may not currently exist. This has been done to allow drivers to anticipate
-the possible introduction of products in a systematic fashion. This is not
-intended to suggest that each potential product is actually under consideration.
-------------------------------------------------------------------------------*/
-
-//----------------------------------------
-// Format of Power-on Reset Message
-//----------------------------------------
-
-typedef union _porStr // "por" stands for Power On Reset
-{
- unsigned char c[16]; // array used when considering the message as a
- // string of undifferentiated characters
-
- struct // Elements used when considering values
- {
- // The first two bytes out of the FIFO are two magic numbers. These are
- // intended to establish that there is indeed a member of the
- // IntelliPort-II(EX) family present. The remaining bytes may be
- // expected // to be valid. When reading the Power-on Reset message,
- // if the magic numbers do not match it is probably best to stop
- // reading immediately. You are certainly not reading our board (unless
- // hardware is faulty), and may in fact be reading some other piece of
- // hardware.
-
- unsigned char porMagic1; // magic number: first byte == POR_MAGIC_1
- unsigned char porMagic2; // magic number: second byte == POR_MAGIC_2
-
- // The Version, Revision, and Subrevision are stored as absolute numbers
- // and would normally be displayed in the format V.R.S (e.g. 1.0.2)
-
- unsigned char porVersion; // Bootstrap firmware version number
- unsigned char porRevision; // Bootstrap firmware revision number
- unsigned char porSubRev; // Bootstrap firmware sub-revision number
-
- unsigned char porID; // Product ID: Bit-mapped according to
- // conventions described below. Among other
- // things, this allows us to distinguish
- // IntelliPort-II boards from IntelliPort-IIEX
- // boards.
-
- unsigned char porBus; // IntelliPort-II: Unused
- // IntelliPort-IIEX: Bus Information:
- // Bit-mapped below
-
- unsigned char porMemory; // On-board DRAM size: in 32k blocks
-
- // porPorts1 (and porPorts2) are used to determine the ports which are
- // available to the board. For non-expandable product, a single number
- // is sufficient. For expandable product, the board may be connected
- // to as many as four boxes. Each box may be (so far) either a 16-port
- // or an 8-port size. Whenever an 8-port box is used, the remaining 8
- // ports leave gaps between existing channels. For that reason,
- // expandable products must report a MAP of available channels. Since
- // each UART supports four ports, we represent each UART found by a
- // single bit. Using two bytes to supply the mapping information we
- // report the presense or absense of up to 16 UARTS, or 64 ports in
- // steps of 4 ports. For -IIEX products, the ports are numbered
- // starting at the box closest to the controller in the "chain".
-
- // Interpreted Differently for IntelliPort-II and -IIEX.
- // -II: Number of ports (Derived actually from product ID). See
- // Diag1&2 to indicate if uart was actually detected.
- // -IIEX: Bit-map of UARTS found, LSB (see below for MSB of this). This
- // bitmap is based on detecting the uarts themselves;
- // see porFlags for information from the box i.d's.
- unsigned char porPorts1;
-
- unsigned char porDiag1; // Results of on-board P.O.S.T, 1st byte
- unsigned char porDiag2; // Results of on-board P.O.S.T, 2nd byte
- unsigned char porSpeed; // Speed of local CPU: given as MHz x10
- // e.g., 16.0 MHz CPU is reported as 160
- unsigned char porFlags; // Misc information (see manifests below)
- // Bit-mapped: CPU type, UART's present
-
- unsigned char porPorts2; // -II: Undefined
- // -IIEX: Bit-map of UARTS found, MSB (see
- // above for LSB)
-
- // IntelliPort-II: undefined
- // IntelliPort-IIEX: 1 << porFifoSize gives the size, in bytes, of the
- // host interface FIFO, in each direction. When running the -IIEX in
- // 8-bit mode, fifo capacity is halved. The bootstrap firmware will
- // have already accounted for this fact in generating this number.
- unsigned char porFifoSize;
-
- // IntelliPort-II: undefined
- // IntelliPort-IIEX: The number of boxes connected. (Presently 1-4)
- unsigned char porNumBoxes;
- } e;
-} porStr, *porStrPtr;
-
-//--------------------------
-// Values for porStr fields
-//--------------------------
-
-//---------------------
-// porMagic1, porMagic2
-//----------------------
-//
-#define POR_MAGIC_1 0x96 // The only valid value for porMagic1
-#define POR_MAGIC_2 0x35 // The only valid value for porMagic2
-#define POR_1_INDEX 0 // Byte position of POR_MAGIC_1
-#define POR_2_INDEX 1 // Ditto for POR_MAGIC_2
-
-//----------------------
-// porID
-//----------------------
-//
-#define POR_ID_FAMILY 0xc0 // These bits indicate the general family of
- // product.
-#define POR_ID_FII 0x00 // Family is "IntelliPort-II"
-#define POR_ID_FIIEX 0x40 // Family is "IntelliPort-IIEX"
-
-// These bits are reserved, presently zero. May be used at a later date to
-// convey other product information.
-//
-#define POR_ID_RESERVED 0x3c
-
-#define POR_ID_SIZE 0x03 // Remaining bits indicate number of ports &
- // Connector information.
-#define POR_ID_II_8 0x00 // For IntelliPort-II, indicates 8-port using
- // standard brick.
-#define POR_ID_II_8R 0x01 // For IntelliPort-II, indicates 8-port using
- // RJ11's (no CTS)
-#define POR_ID_II_6 0x02 // For IntelliPort-II, indicates 6-port using
- // RJ45's
-#define POR_ID_II_4 0x03 // For IntelliPort-II, indicates 4-port using
- // 4xRJ45 connectors
-#define POR_ID_EX 0x00 // For IntelliPort-IIEX, indicates standard
- // expandable controller (other values reserved)
-
-//----------------------
-// porBus
-//----------------------
-
-// IntelliPort-IIEX only: Board is installed in a 16-bit slot
-//
-#define POR_BUS_SLOT16 0x20
-
-// IntelliPort-IIEX only: DIP switch #8 is on, selecting 16-bit host interface
-// operation.
-//
-#define POR_BUS_DIP16 0x10
-
-// Bits 0-2 indicate type of bus: This information is stored in the bootstrap
-// loadware, different loadware being used on different products for different
-// buses. For most situations, the drivers do not need this information; but it
-// is handy in a diagnostic environment. For example, on microchannel boards,
-// you would not want to try to test several interrupts, only the one for which
-// you were configured.
-//
-#define POR_BUS_TYPE 0x07
-
-// Unknown: this product doesn't know what bus it is running in. (e.g. if same
-// bootstrap firmware were wanted for two different buses.)
-//
-#define POR_BUS_T_UNK 0
-
-// Note: existing firmware for ISA-8 and MC-8 currently report the POR_BUS_T_UNK
-// state, since the same bootstrap firmware is used for each.
-
-#define POR_BUS_T_MCA 1 // MCA BUS */
-#define POR_BUS_T_EISA 2 // EISA BUS */
-#define POR_BUS_T_ISA 3 // ISA BUS */
-
-// Values 4-7 Reserved
-
-// Remaining bits are reserved
-
-//----------------------
-// porDiag1
-//----------------------
-
-#define POR_BAD_MAPPER 0x80 // HW failure on P.O.S.T: Chip mapper failed
-
-// These two bits valid only for the IntelliPort-II
-//
-#define POR_BAD_UART1 0x01 // First 1400 bad
-#define POR_BAD_UART2 0x02 // Second 1400 bad
-
-//----------------------
-// porDiag2
-//----------------------
-
-#define POR_DEBUG_PORT 0x80 // debug port was detected by the P.O.S.T
-#define POR_DIAG_OK 0x00 // Indicates passage: Failure codes not yet
- // available.
- // Other bits undefined.
-//----------------------
-// porFlags
-//----------------------
-
-#define POR_CPU 0x03 // These bits indicate supposed CPU type
-#define POR_CPU_8 0x01 // Board uses an 80188 (no such thing yet)
-#define POR_CPU_6 0x02 // Board uses an 80186 (all existing products)
-#define POR_CEX4 0x04 // If set, this is an ISA-CEX/4: An ISA-4 (asic)
- // which is architected like an ISA-CEX connected
- // to a (hitherto impossible) 4-port box.
-#define POR_BOXES 0xf0 // Valid for IntelliPort-IIEX only: Map of Box
- // sizes based on box I.D.
-#define POR_BOX_16 0x10 // Set indicates 16-port, clear 8-port
-
-//-------------------------------------
-// LOADWARE and DOWNLOADING CODE
-//-------------------------------------
-
-/*
-Loadware may be sent to the board in two ways:
-1) It may be read from a (binary image) data file block by block as each block
- is sent to the board. This is only possible when the initialization is
- performed by code which can access your file system. This is most suitable
- for diagnostics and appications which use the interface library directly.
-
-2) It may be hard-coded into your source by including a .h file (typically
- supplied by Computone), which declares a data array and initializes every
- element. This achieves the same result as if an entire loadware file had
- been read into the array.
-
- This requires more data space in your program, but access to the file system
- is not required. This method is more suited to driver code, which typically
- is running at a level too low to access the file system directly.
-
-At present, loadware can only be generated at Computone.
-
-All Loadware begins with a header area which has a particular format. This
-includes a magic number which identifies the file as being (purportedly)
-loadware, CRC (for the loader), and version information.
-*/
-
-
-//-----------------------------------------------------------------------------
-// Format of loadware block
-//
-// This is defined as a union so we can pass a pointer to one of these items
-// and (if it is the first block) pick out the version information, etc.
-//
-// Otherwise, to deal with this as a simple character array
-//------------------------------------------------------------------------------
-
-#define LOADWARE_BLOCK_SIZE 512 // Number of bytes in each block of loadware
-
-typedef union _loadHdrStr
-{
- unsigned char c[LOADWARE_BLOCK_SIZE]; // Valid for every block
-
- struct // These fields are valid for only the first block of loadware.
- {
- unsigned char loadMagic; // Magic number: see below
- unsigned char loadBlocksMore; // How many more blocks?
- unsigned char loadCRC[2]; // Two CRC bytes: used by loader
- unsigned char loadVersion; // Version number
- unsigned char loadRevision; // Revision number
- unsigned char loadSubRevision; // Sub-revision number
- unsigned char loadSpares[9]; // Presently unused
- unsigned char loadDates[32]; // Null-terminated string which can give
- // date and time of compilation
- } e;
-} loadHdrStr, *loadHdrStrPtr;
-
-//------------------------------------
-// Defines for downloading code:
-//------------------------------------
-
-// The loadMagic field in the first block of the loadfile must be this, else the
-// file is not valid.
-//
-#define MAGIC_LOADFILE 0x3c
-
-// How do we know the load was successful? On completion of the load, the
-// bootstrap firmware returns a code to indicate whether it thought the download
-// was valid and intends to execute it. These are the only possible valid codes:
-//
-#define LOADWARE_OK 0xc3 // Download was ok
-#define LOADWARE_BAD 0x5a // Download was bad (CRC error)
-
-// Constants applicable to writing blocks of loadware:
-// The first block of loadware might take 600 mS to load, in extreme cases.
-// (Expandable board: worst case for sending startup messages to the LCD's).
-// The 600mS figure is not really a calculation, but a conservative
-// guess/guarantee. Usually this will be within 100 mS, like subsequent blocks.
-//
-#define MAX_DLOAD_START_TIME 1000 // 1000 mS
-#define MAX_DLOAD_READ_TIME 100 // 100 mS
-
-// Firmware should respond with status (see above) within this long of host
-// having sent the final block.
-//
-#define MAX_DLOAD_ACK_TIME 100 // 100 mS, again!
-
-//------------------------------------------------------
-// MAXIMUM NUMBER OF PORTS PER BOARD:
-// This is fixed for now (with the expandable), but may
-// be expanding according to even newer products.
-//------------------------------------------------------
-//
-#define ABS_MAX_BOXES 4 // Absolute most boxes per board
-#define ABS_BIGGEST_BOX 16 // Absolute the most ports per box
-#define ABS_MOST_PORTS (ABS_MAX_BOXES * ABS_BIGGEST_BOX)
-
-#define I2_OUTSW(port, addr, count) outsw((port), (addr), (((count)+1)/2))
-#define I2_OUTSB(port, addr, count) outsb((port), (addr), (((count)+1))&-2)
-#define I2_INSW(port, addr, count) insw((port), (addr), (((count)+1)/2))
-#define I2_INSB(port, addr, count) insb((port), (addr), (((count)+1))&-2)
-
-#endif // I2HW_H
-
diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c
deleted file mode 100644
index 0d10b89218e..00000000000
--- a/drivers/char/ip2/i2lib.c
+++ /dev/null
@@ -1,2214 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1999 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: High-level interface code for the device driver. Uses the
-* Extremely Low Level Interface Support (i2ellis.c). Provides an
-* interface to the standard loadware, to support drivers or
-* application code. (This is included source code, not a separate
-* compilation module.)
-*
-*******************************************************************************/
-//------------------------------------------------------------------------------
-// Note on Strategy:
-// Once the board has been initialized, it will interrupt us when:
-// 1) It has something in the fifo for us to read (incoming data, flow control
-// packets, or whatever).
-// 2) It has stripped whatever we have sent last time in the FIFO (and
-// consequently is ready for more).
-//
-// Note also that the buffer sizes declared in i2lib.h are VERY SMALL. This
-// worsens performance considerably, but is done so that a great many channels
-// might use only a little memory.
-//------------------------------------------------------------------------------
-
-//------------------------------------------------------------------------------
-// Revision History:
-//
-// 0.00 - 4/16/91 --- First Draft
-// 0.01 - 4/29/91 --- 1st beta release
-// 0.02 - 6/14/91 --- Changes to allow small model compilation
-// 0.03 - 6/17/91 MAG Break reporting protected from interrupts routines with
-// in-line asm added for moving data to/from ring buffers,
-// replacing a variety of methods used previously.
-// 0.04 - 6/21/91 MAG Initial flow-control packets not queued until
-// i2_enable_interrupts time. Former versions would enqueue
-// them at i2_init_channel time, before we knew how many
-// channels were supposed to exist!
-// 0.05 - 10/12/91 MAG Major changes: works through the ellis.c routines now;
-// supports new 16-bit protocol and expandable boards.
-// - 10/24/91 MAG Most changes in place and stable.
-// 0.06 - 2/20/92 MAG Format of CMD_HOTACK corrected: the command takes no
-// argument.
-// 0.07 -- 3/11/92 MAG Support added to store special packet types at interrupt
-// level (mostly responses to specific commands.)
-// 0.08 -- 3/30/92 MAG Support added for STAT_MODEM packet
-// 0.09 -- 6/24/93 MAG i2Link... needed to update number of boards BEFORE
-// turning on the interrupt.
-// 0.10 -- 6/25/93 MAG To avoid gruesome death from a bad board, we sanity check
-// some incoming.
-//
-// 1.1 - 12/25/96 AKM Linux version.
-// - 10/09/98 DMC Revised Linux version.
-//------------------------------------------------------------------------------
-
-//************
-//* Includes *
-//************
-
-#include <linux/sched.h>
-#include "i2lib.h"
-
-
-//***********************
-//* Function Prototypes *
-//***********************
-static void i2QueueNeeds(i2eBordStrPtr, i2ChanStrPtr, int);
-static i2ChanStrPtr i2DeQueueNeeds(i2eBordStrPtr, int );
-static void i2StripFifo(i2eBordStrPtr);
-static void i2StuffFifoBypass(i2eBordStrPtr);
-static void i2StuffFifoFlow(i2eBordStrPtr);
-static void i2StuffFifoInline(i2eBordStrPtr);
-static int i2RetryFlushOutput(i2ChanStrPtr);
-
-// Not a documented part of the library routines (careful...) but the Diagnostic
-// i2diag.c finds them useful to help the throughput in certain limited
-// single-threaded operations.
-static void iiSendPendingMail(i2eBordStrPtr);
-static void serviceOutgoingFifo(i2eBordStrPtr);
-
-// Functions defined in ip2.c as part of interrupt handling
-static void do_input(struct work_struct *);
-static void do_status(struct work_struct *);
-
-//***************
-//* Debug Data *
-//***************
-#ifdef DEBUG_FIFO
-
-unsigned char DBGBuf[0x4000];
-unsigned short I = 0;
-
-static void
-WriteDBGBuf(char *s, unsigned char *src, unsigned short n )
-{
- char *p = src;
-
- // XXX: We need a spin lock here if we ever use this again
-
- while (*s) { // copy label
- DBGBuf[I] = *s++;
- I = I++ & 0x3fff;
- }
- while (n--) { // copy data
- DBGBuf[I] = *p++;
- I = I++ & 0x3fff;
- }
-}
-
-static void
-fatality(i2eBordStrPtr pB )
-{
- int i;
-
- for (i=0;i<sizeof(DBGBuf);i++) {
- if ((i%16) == 0)
- printk("\n%4x:",i);
- printk("%02x ",DBGBuf[i]);
- }
- printk("\n");
- for (i=0;i<sizeof(DBGBuf);i++) {
- if ((i%16) == 0)
- printk("\n%4x:",i);
- if (DBGBuf[i] >= ' ' && DBGBuf[i] <= '~') {
- printk(" %c ",DBGBuf[i]);
- } else {
- printk(" . ");
- }
- }
- printk("\n");
- printk("Last index %x\n",I);
-}
-#endif /* DEBUG_FIFO */
-
-//********
-//* Code *
-//********
-
-static inline int
-i2Validate ( i2ChanStrPtr pCh )
-{
- //ip2trace(pCh->port_index, ITRC_VERIFY,ITRC_ENTER,2,pCh->validity,
- // (CHANNEL_MAGIC | CHANNEL_SUPPORT));
- return ((pCh->validity & (CHANNEL_MAGIC_BITS | CHANNEL_SUPPORT))
- == (CHANNEL_MAGIC | CHANNEL_SUPPORT));
-}
-
-static void iiSendPendingMail_t(unsigned long data)
-{
- i2eBordStrPtr pB = (i2eBordStrPtr)data;
-
- iiSendPendingMail(pB);
-}
-
-//******************************************************************************
-// Function: iiSendPendingMail(pB)
-// Parameters: Pointer to a board structure
-// Returns: Nothing
-//
-// Description:
-// If any outgoing mail bits are set and there is outgoing mailbox is empty,
-// send the mail and clear the bits.
-//******************************************************************************
-static void
-iiSendPendingMail(i2eBordStrPtr pB)
-{
- if (pB->i2eOutMailWaiting && (!pB->i2eWaitingForEmptyFifo) )
- {
- if (iiTrySendMail(pB, pB->i2eOutMailWaiting))
- {
- /* If we were already waiting for fifo to empty,
- * or just sent MB_OUT_STUFFED, then we are
- * still waiting for it to empty, until we should
- * receive an MB_IN_STRIPPED from the board.
- */
- pB->i2eWaitingForEmptyFifo |=
- (pB->i2eOutMailWaiting & MB_OUT_STUFFED);
- pB->i2eOutMailWaiting = 0;
- pB->SendPendingRetry = 0;
- } else {
-/* The only time we hit this area is when "iiTrySendMail" has
- failed. That only occurs when the outbound mailbox is
- still busy with the last message. We take a short breather
- to let the board catch up with itself and then try again.
- 16 Retries is the limit - then we got a borked board.
- /\/\|=mhw=|\/\/ */
-
- if( ++pB->SendPendingRetry < 16 ) {
- setup_timer(&pB->SendPendingTimer,
- iiSendPendingMail_t, (unsigned long)pB);
- mod_timer(&pB->SendPendingTimer, jiffies + 1);
- } else {
- printk( KERN_ERR "IP2: iiSendPendingMail unable to queue outbound mail\n" );
- }
- }
- }
-}
-
-//******************************************************************************
-// Function: i2InitChannels(pB, nChannels, pCh)
-// Parameters: Pointer to Ellis Board structure
-// Number of channels to initialize
-// Pointer to first element in an array of channel structures
-// Returns: Success or failure
-//
-// Description:
-//
-// This function patches pointers, back-pointers, and initializes all the
-// elements in the channel structure array.
-//
-// This should be run after the board structure is initialized, through having
-// loaded the standard loadware (otherwise it complains).
-//
-// In any case, it must be done before any serious work begins initializing the
-// irq's or sending commands...
-//
-//******************************************************************************
-static int
-i2InitChannels ( i2eBordStrPtr pB, int nChannels, i2ChanStrPtr pCh)
-{
- int index, stuffIndex;
- i2ChanStrPtr *ppCh;
-
- if (pB->i2eValid != I2E_MAGIC) {
- I2_COMPLETE(pB, I2EE_BADMAGIC);
- }
- if (pB->i2eState != II_STATE_STDLOADED) {
- I2_COMPLETE(pB, I2EE_BADSTATE);
- }
-
- rwlock_init(&pB->read_fifo_spinlock);
- rwlock_init(&pB->write_fifo_spinlock);
- rwlock_init(&pB->Dbuf_spinlock);
- rwlock_init(&pB->Bbuf_spinlock);
- rwlock_init(&pB->Fbuf_spinlock);
-
- // NO LOCK needed yet - this is init
-
- pB->i2eChannelPtr = pCh;
- pB->i2eChannelCnt = nChannels;
-
- pB->i2Fbuf_strip = pB->i2Fbuf_stuff = 0;
- pB->i2Dbuf_strip = pB->i2Dbuf_stuff = 0;
- pB->i2Bbuf_strip = pB->i2Bbuf_stuff = 0;
-
- pB->SendPendingRetry = 0;
-
- memset ( pCh, 0, sizeof (i2ChanStr) * nChannels );
-
- for (index = stuffIndex = 0, ppCh = (i2ChanStrPtr *)(pB->i2Fbuf);
- nChannels && index < ABS_MOST_PORTS;
- index++)
- {
- if ( !(pB->i2eChannelMap[index >> 4] & (1 << (index & 0xf)) ) ) {
- continue;
- }
- rwlock_init(&pCh->Ibuf_spinlock);
- rwlock_init(&pCh->Obuf_spinlock);
- rwlock_init(&pCh->Cbuf_spinlock);
- rwlock_init(&pCh->Pbuf_spinlock);
- // NO LOCK needed yet - this is init
- // Set up validity flag according to support level
- if (pB->i2eGoodMap[index >> 4] & (1 << (index & 0xf)) ) {
- pCh->validity = CHANNEL_MAGIC | CHANNEL_SUPPORT;
- } else {
- pCh->validity = CHANNEL_MAGIC;
- }
- pCh->pMyBord = pB; /* Back-pointer */
-
- // Prepare an outgoing flow-control packet to send as soon as the chance
- // occurs.
- if ( pCh->validity & CHANNEL_SUPPORT ) {
- pCh->infl.hd.i2sChannel = index;
- pCh->infl.hd.i2sCount = 5;
- pCh->infl.hd.i2sType = PTYPE_BYPASS;
- pCh->infl.fcmd = 37;
- pCh->infl.asof = 0;
- pCh->infl.room = IBUF_SIZE - 1;
-
- pCh->whenSendFlow = (IBUF_SIZE/5)*4; // when 80% full
-
- // The following is similar to calling i2QueueNeeds, except that this
- // is done in longhand, since we are setting up initial conditions on
- // many channels at once.
- pCh->channelNeeds = NEED_FLOW; // Since starting from scratch
- pCh->sinceLastFlow = 0; // No bytes received since last flow
- // control packet was queued
- stuffIndex++;
- *ppCh++ = pCh; // List this channel as needing
- // initial flow control packet sent
- }
-
- // Don't allow anything to be sent until the status packets come in from
- // the board.
-
- pCh->outfl.asof = 0;
- pCh->outfl.room = 0;
-
- // Initialize all the ring buffers
-
- pCh->Ibuf_stuff = pCh->Ibuf_strip = 0;
- pCh->Obuf_stuff = pCh->Obuf_strip = 0;
- pCh->Cbuf_stuff = pCh->Cbuf_strip = 0;
-
- memset( &pCh->icount, 0, sizeof (struct async_icount) );
- pCh->hotKeyIn = HOT_CLEAR;
- pCh->channelOptions = 0;
- pCh->bookMarks = 0;
- init_waitqueue_head(&pCh->pBookmarkWait);
-
- init_waitqueue_head(&pCh->open_wait);
- init_waitqueue_head(&pCh->close_wait);
- init_waitqueue_head(&pCh->delta_msr_wait);
-
- // Set base and divisor so default custom rate is 9600
- pCh->BaudBase = 921600; // MAX for ST654, changed after we get
- pCh->BaudDivisor = 96; // the boxids (UART types) later
-
- pCh->dataSetIn = 0;
- pCh->dataSetOut = 0;
-
- pCh->wopen = 0;
- pCh->throttled = 0;
-
- pCh->speed = CBR_9600;
-
- pCh->flags = 0;
-
- pCh->ClosingDelay = 5*HZ/10;
- pCh->ClosingWaitTime = 30*HZ;
-
- // Initialize task queue objects
- INIT_WORK(&pCh->tqueue_input, do_input);
- INIT_WORK(&pCh->tqueue_status, do_status);
-
-#ifdef IP2DEBUG_TRACE
- pCh->trace = ip2trace;
-#endif
-
- ++pCh;
- --nChannels;
- }
- // No need to check for wrap here; this is initialization.
- pB->i2Fbuf_stuff = stuffIndex;
- I2_COMPLETE(pB, I2EE_GOOD);
-
-}
-
-//******************************************************************************
-// Function: i2DeQueueNeeds(pB, type)
-// Parameters: Pointer to a board structure
-// type bit map: may include NEED_INLINE, NEED_BYPASS, or NEED_FLOW
-// Returns:
-// Pointer to a channel structure
-//
-// Description: Returns pointer struct of next channel that needs service of
-// the type specified. Otherwise returns a NULL reference.
-//
-//******************************************************************************
-static i2ChanStrPtr
-i2DeQueueNeeds(i2eBordStrPtr pB, int type)
-{
- unsigned short queueIndex;
- unsigned long flags;
-
- i2ChanStrPtr pCh = NULL;
-
- switch(type) {
-
- case NEED_INLINE:
-
- write_lock_irqsave(&pB->Dbuf_spinlock, flags);
- if ( pB->i2Dbuf_stuff != pB->i2Dbuf_strip)
- {
- queueIndex = pB->i2Dbuf_strip;
- pCh = pB->i2Dbuf[queueIndex];
- queueIndex++;
- if (queueIndex >= CH_QUEUE_SIZE) {
- queueIndex = 0;
- }
- pB->i2Dbuf_strip = queueIndex;
- pCh->channelNeeds &= ~NEED_INLINE;
- }
- write_unlock_irqrestore(&pB->Dbuf_spinlock, flags);
- break;
-
- case NEED_BYPASS:
-
- write_lock_irqsave(&pB->Bbuf_spinlock, flags);
- if (pB->i2Bbuf_stuff != pB->i2Bbuf_strip)
- {
- queueIndex = pB->i2Bbuf_strip;
- pCh = pB->i2Bbuf[queueIndex];
- queueIndex++;
- if (queueIndex >= CH_QUEUE_SIZE) {
- queueIndex = 0;
- }
- pB->i2Bbuf_strip = queueIndex;
- pCh->channelNeeds &= ~NEED_BYPASS;
- }
- write_unlock_irqrestore(&pB->Bbuf_spinlock, flags);
- break;
-
- case NEED_FLOW:
-
- write_lock_irqsave(&pB->Fbuf_spinlock, flags);
- if (pB->i2Fbuf_stuff != pB->i2Fbuf_strip)
- {
- queueIndex = pB->i2Fbuf_strip;
- pCh = pB->i2Fbuf[queueIndex];
- queueIndex++;
- if (queueIndex >= CH_QUEUE_SIZE) {
- queueIndex = 0;
- }
- pB->i2Fbuf_strip = queueIndex;
- pCh->channelNeeds &= ~NEED_FLOW;
- }
- write_unlock_irqrestore(&pB->Fbuf_spinlock, flags);
- break;
- default:
- printk(KERN_ERR "i2DeQueueNeeds called with bad type:%x\n",type);
- break;
- }
- return pCh;
-}
-
-//******************************************************************************
-// Function: i2QueueNeeds(pB, pCh, type)
-// Parameters: Pointer to a board structure
-// Pointer to a channel structure
-// type bit map: may include NEED_INLINE, NEED_BYPASS, or NEED_FLOW
-// Returns: Nothing
-//
-// Description:
-// For each type of need selected, if the given channel is not already in the
-// queue, adds it, and sets the flag indicating it is in the queue.
-//******************************************************************************
-static void
-i2QueueNeeds(i2eBordStrPtr pB, i2ChanStrPtr pCh, int type)
-{
- unsigned short queueIndex;
- unsigned long flags;
-
- // We turn off all the interrupts during this brief process, since the
- // interrupt-level code might want to put things on the queue as well.
-
- switch (type) {
-
- case NEED_INLINE:
-
- write_lock_irqsave(&pB->Dbuf_spinlock, flags);
- if ( !(pCh->channelNeeds & NEED_INLINE) )
- {
- pCh->channelNeeds |= NEED_INLINE;
- queueIndex = pB->i2Dbuf_stuff;
- pB->i2Dbuf[queueIndex++] = pCh;
- if (queueIndex >= CH_QUEUE_SIZE)
- queueIndex = 0;
- pB->i2Dbuf_stuff = queueIndex;
- }
- write_unlock_irqrestore(&pB->Dbuf_spinlock, flags);
- break;
-
- case NEED_BYPASS:
-
- write_lock_irqsave(&pB->Bbuf_spinlock, flags);
- if ((type & NEED_BYPASS) && !(pCh->channelNeeds & NEED_BYPASS))
- {
- pCh->channelNeeds |= NEED_BYPASS;
- queueIndex = pB->i2Bbuf_stuff;
- pB->i2Bbuf[queueIndex++] = pCh;
- if (queueIndex >= CH_QUEUE_SIZE)
- queueIndex = 0;
- pB->i2Bbuf_stuff = queueIndex;
- }
- write_unlock_irqrestore(&pB->Bbuf_spinlock, flags);
- break;
-
- case NEED_FLOW:
-
- write_lock_irqsave(&pB->Fbuf_spinlock, flags);
- if ((type & NEED_FLOW) && !(pCh->channelNeeds & NEED_FLOW))
- {
- pCh->channelNeeds |= NEED_FLOW;
- queueIndex = pB->i2Fbuf_stuff;
- pB->i2Fbuf[queueIndex++] = pCh;
- if (queueIndex >= CH_QUEUE_SIZE)
- queueIndex = 0;
- pB->i2Fbuf_stuff = queueIndex;
- }
- write_unlock_irqrestore(&pB->Fbuf_spinlock, flags);
- break;
-
- case NEED_CREDIT:
- pCh->channelNeeds |= NEED_CREDIT;
- break;
- default:
- printk(KERN_ERR "i2QueueNeeds called with bad type:%x\n",type);
- break;
- }
- return;
-}
-
-//******************************************************************************
-// Function: i2QueueCommands(type, pCh, timeout, nCommands, pCs,...)
-// Parameters: type - PTYPE_BYPASS or PTYPE_INLINE
-// pointer to the channel structure
-// maximum period to wait
-// number of commands (n)
-// n commands
-// Returns: Number of commands sent, or -1 for error
-//
-// get board lock before calling
-//
-// Description:
-// Queues up some commands to be sent to a channel. To send possibly several
-// bypass or inline commands to the given channel. The timeout parameter
-// indicates how many HUNDREDTHS OF SECONDS to wait until there is room:
-// 0 = return immediately if no room, -ive = wait forever, +ive = number of
-// 1/100 seconds to wait. Return values:
-// -1 Some kind of nasty error: bad channel structure or invalid arguments.
-// 0 No room to send all the commands
-// (+) Number of commands sent
-//******************************************************************************
-static int
-i2QueueCommands(int type, i2ChanStrPtr pCh, int timeout, int nCommands,
- cmdSyntaxPtr pCs0,...)
-{
- int totalsize = 0;
- int blocksize;
- int lastended;
- cmdSyntaxPtr *ppCs;
- cmdSyntaxPtr pCs;
- int count;
- int flag;
- i2eBordStrPtr pB;
-
- unsigned short maxBlock;
- unsigned short maxBuff;
- short bufroom;
- unsigned short stuffIndex;
- unsigned char *pBuf;
- unsigned char *pInsert;
- unsigned char *pDest, *pSource;
- unsigned short channel;
- int cnt;
- unsigned long flags = 0;
- rwlock_t *lock_var_p = NULL;
-
- // Make sure the channel exists, otherwise do nothing
- if ( !i2Validate ( pCh ) ) {
- return -1;
- }
-
- ip2trace (CHANN, ITRC_QUEUE, ITRC_ENTER, 0 );
-
- pB = pCh->pMyBord;
-
- // Board must also exist, and THE INTERRUPT COMMAND ALREADY SENT
- if (pB->i2eValid != I2E_MAGIC || pB->i2eUsingIrq == I2_IRQ_UNDEFINED)
- return -2;
- // If the board has gone fatal, return bad, and also hit the trap routine if
- // it exists.
- if (pB->i2eFatal) {
- if ( pB->i2eFatalTrap ) {
- (*(pB)->i2eFatalTrap)(pB);
- }
- return -3;
- }
- // Set up some variables, Which buffers are we using? How big are they?
- switch(type)
- {
- case PTYPE_INLINE:
- flag = INL;
- maxBlock = MAX_OBUF_BLOCK;
- maxBuff = OBUF_SIZE;
- pBuf = pCh->Obuf;
- break;
- case PTYPE_BYPASS:
- flag = BYP;
- maxBlock = MAX_CBUF_BLOCK;
- maxBuff = CBUF_SIZE;
- pBuf = pCh->Cbuf;
- break;
- default:
- return -4;
- }
- // Determine the total size required for all the commands
- totalsize = blocksize = sizeof(i2CmdHeader);
- lastended = 0;
- ppCs = &pCs0;
- for ( count = nCommands; count; count--, ppCs++)
- {
- pCs = *ppCs;
- cnt = pCs->length;
- // Will a new block be needed for this one?
- // Two possible reasons: too
- // big or previous command has to be at the end of a packet.
- if ((blocksize + cnt > maxBlock) || lastended) {
- blocksize = sizeof(i2CmdHeader);
- totalsize += sizeof(i2CmdHeader);
- }
- totalsize += cnt;
- blocksize += cnt;
-
- // If this command had to end a block, then we will make sure to
- // account for it should there be any more blocks.
- lastended = pCs->flags & END;
- }
- for (;;) {
- // Make sure any pending flush commands go out before we add more data.
- if ( !( pCh->flush_flags && i2RetryFlushOutput( pCh ) ) ) {
- // How much room (this time through) ?
- switch(type) {
- case PTYPE_INLINE:
- lock_var_p = &pCh->Obuf_spinlock;
- write_lock_irqsave(lock_var_p, flags);
- stuffIndex = pCh->Obuf_stuff;
- bufroom = pCh->Obuf_strip - stuffIndex;
- break;
- case PTYPE_BYPASS:
- lock_var_p = &pCh->Cbuf_spinlock;
- write_lock_irqsave(lock_var_p, flags);
- stuffIndex = pCh->Cbuf_stuff;
- bufroom = pCh->Cbuf_strip - stuffIndex;
- break;
- default:
- return -5;
- }
- if (--bufroom < 0) {
- bufroom += maxBuff;
- }
-
- ip2trace (CHANN, ITRC_QUEUE, 2, 1, bufroom );
-
- // Check for overflow
- if (totalsize <= bufroom) {
- // Normal Expected path - We still hold LOCK
- break; /* from for()- Enough room: goto proceed */
- }
- ip2trace(CHANN, ITRC_QUEUE, 3, 1, totalsize);
- write_unlock_irqrestore(lock_var_p, flags);
- } else
- ip2trace(CHANN, ITRC_QUEUE, 3, 1, totalsize);
-
- /* Prepare to wait for buffers to empty */
- serviceOutgoingFifo(pB); // Dump what we got
-
- if (timeout == 0) {
- return 0; // Tired of waiting
- }
- if (timeout > 0)
- timeout--; // So negative values == forever
-
- if (!in_interrupt()) {
- schedule_timeout_interruptible(1); // short nap
- } else {
- // we cannot sched/sleep in interrupt silly
- return 0;
- }
- if (signal_pending(current)) {
- return 0; // Wake up! Time to die!!!
- }
-
- ip2trace (CHANN, ITRC_QUEUE, 4, 0 );
-
- } // end of for(;;)
-
- // At this point we have room and the lock - stick them in.
- channel = pCh->infl.hd.i2sChannel;
- pInsert = &pBuf[stuffIndex]; // Pointer to start of packet
- pDest = CMD_OF(pInsert); // Pointer to start of command
-
- // When we start counting, the block is the size of the header
- for (blocksize = sizeof(i2CmdHeader), count = nCommands,
- lastended = 0, ppCs = &pCs0;
- count;
- count--, ppCs++)
- {
- pCs = *ppCs; // Points to command protocol structure
-
- // If this is a bookmark request command, post the fact that a bookmark
- // request is pending. NOTE THIS TRICK ONLY WORKS BECAUSE CMD_BMARK_REQ
- // has no parameters! The more general solution would be to reference
- // pCs->cmd[0].
- if (pCs == CMD_BMARK_REQ) {
- pCh->bookMarks++;
-
- ip2trace (CHANN, ITRC_DRAIN, 30, 1, pCh->bookMarks );
-
- }
- cnt = pCs->length;
-
- // If this command would put us over the maximum block size or
- // if the last command had to be at the end of a block, we end
- // the existing block here and start a new one.
- if ((blocksize + cnt > maxBlock) || lastended) {
-
- ip2trace (CHANN, ITRC_QUEUE, 5, 0 );
-
- PTYPE_OF(pInsert) = type;
- CHANNEL_OF(pInsert) = channel;
- // count here does not include the header
- CMD_COUNT_OF(pInsert) = blocksize - sizeof(i2CmdHeader);
- stuffIndex += blocksize;
- if(stuffIndex >= maxBuff) {
- stuffIndex = 0;
- pInsert = pBuf;
- }
- pInsert = &pBuf[stuffIndex]; // Pointer to start of next pkt
- pDest = CMD_OF(pInsert);
- blocksize = sizeof(i2CmdHeader);
- }
- // Now we know there is room for this one in the current block
-
- blocksize += cnt; // Total bytes in this command
- pSource = pCs->cmd; // Copy the command into the buffer
- while (cnt--) {
- *pDest++ = *pSource++;
- }
- // If this command had to end a block, then we will make sure to account
- // for it should there be any more blocks.
- lastended = pCs->flags & END;
- } // end for
- // Clean up the final block by writing header, etc
-
- PTYPE_OF(pInsert) = type;
- CHANNEL_OF(pInsert) = channel;
- // count here does not include the header
- CMD_COUNT_OF(pInsert) = blocksize - sizeof(i2CmdHeader);
- stuffIndex += blocksize;
- if(stuffIndex >= maxBuff) {
- stuffIndex = 0;
- pInsert = pBuf;
- }
- // Updates the index, and post the need for service. When adding these to
- // the queue of channels, we turn off the interrupt while doing so,
- // because at interrupt level we might want to push a channel back to the
- // end of the queue.
- switch(type)
- {
- case PTYPE_INLINE:
- pCh->Obuf_stuff = stuffIndex; // Store buffer pointer
- write_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-
- pB->debugInlineQueued++;
- // Add the channel pointer to list of channels needing service (first
- // come...), if it's not already there.
- i2QueueNeeds(pB, pCh, NEED_INLINE);
- break;
-
- case PTYPE_BYPASS:
- pCh->Cbuf_stuff = stuffIndex; // Store buffer pointer
- write_unlock_irqrestore(&pCh->Cbuf_spinlock, flags);
-
- pB->debugBypassQueued++;
- // Add the channel pointer to list of channels needing service (first
- // come...), if it's not already there.
- i2QueueNeeds(pB, pCh, NEED_BYPASS);
- break;
- }
-
- ip2trace (CHANN, ITRC_QUEUE, ITRC_RETURN, 1, nCommands );
-
- return nCommands; // Good status: number of commands sent
-}
-
-//******************************************************************************
-// Function: i2GetStatus(pCh,resetBits)
-// Parameters: Pointer to a channel structure
-// Bit map of status bits to clear
-// Returns: Bit map of current status bits
-//
-// Description:
-// Returns the state of data set signals, and whether a break has been received,
-// (see i2lib.h for bit-mapped result). resetBits is a bit-map of any status
-// bits to be cleared: I2_BRK, I2_PAR, I2_FRA, I2_OVR,... These are cleared
-// AFTER the condition is passed. If pCh does not point to a valid channel,
-// returns -1 (which would be impossible otherwise.
-//******************************************************************************
-static int
-i2GetStatus(i2ChanStrPtr pCh, int resetBits)
-{
- unsigned short status;
- i2eBordStrPtr pB;
-
- ip2trace (CHANN, ITRC_STATUS, ITRC_ENTER, 2, pCh->dataSetIn, resetBits );
-
- // Make sure the channel exists, otherwise do nothing */
- if ( !i2Validate ( pCh ) )
- return -1;
-
- pB = pCh->pMyBord;
-
- status = pCh->dataSetIn;
-
- // Clear any specified error bits: but note that only actual error bits can
- // be cleared, regardless of the value passed.
- if (resetBits)
- {
- pCh->dataSetIn &= ~(resetBits & (I2_BRK | I2_PAR | I2_FRA | I2_OVR));
- pCh->dataSetIn &= ~(I2_DDCD | I2_DCTS | I2_DDSR | I2_DRI);
- }
-
- ip2trace (CHANN, ITRC_STATUS, ITRC_RETURN, 1, pCh->dataSetIn );
-
- return status;
-}
-
-//******************************************************************************
-// Function: i2Input(pChpDest,count)
-// Parameters: Pointer to a channel structure
-// Pointer to data buffer
-// Number of bytes to read
-// Returns: Number of bytes read, or -1 for error
-//
-// Description:
-// Strips data from the input buffer and writes it to pDest. If there is a
-// collosal blunder, (invalid structure pointers or the like), returns -1.
-// Otherwise, returns the number of bytes read.
-//******************************************************************************
-static int
-i2Input(i2ChanStrPtr pCh)
-{
- int amountToMove;
- unsigned short stripIndex;
- int count;
- unsigned long flags = 0;
-
- ip2trace (CHANN, ITRC_INPUT, ITRC_ENTER, 0);
-
- // Ensure channel structure seems real
- if ( !i2Validate( pCh ) ) {
- count = -1;
- goto i2Input_exit;
- }
- write_lock_irqsave(&pCh->Ibuf_spinlock, flags);
-
- // initialize some accelerators and private copies
- stripIndex = pCh->Ibuf_strip;
-
- count = pCh->Ibuf_stuff - stripIndex;
-
- // If buffer is empty or requested data count was 0, (trivial case) return
- // without any further thought.
- if ( count == 0 ) {
- write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- goto i2Input_exit;
- }
- // Adjust for buffer wrap
- if ( count < 0 ) {
- count += IBUF_SIZE;
- }
- // Don't give more than can be taken by the line discipline
- amountToMove = pCh->pTTY->receive_room;
- if (count > amountToMove) {
- count = amountToMove;
- }
- // How much could we copy without a wrap?
- amountToMove = IBUF_SIZE - stripIndex;
-
- if (amountToMove > count) {
- amountToMove = count;
- }
- // Move the first block
- pCh->pTTY->ldisc->ops->receive_buf( pCh->pTTY,
- &(pCh->Ibuf[stripIndex]), NULL, amountToMove );
- // If we needed to wrap, do the second data move
- if (count > amountToMove) {
- pCh->pTTY->ldisc->ops->receive_buf( pCh->pTTY,
- pCh->Ibuf, NULL, count - amountToMove );
- }
- // Bump and wrap the stripIndex all at once by the amount of data read. This
- // method is good regardless of whether the data was in one or two pieces.
- stripIndex += count;
- if (stripIndex >= IBUF_SIZE) {
- stripIndex -= IBUF_SIZE;
- }
- pCh->Ibuf_strip = stripIndex;
-
- // Update our flow control information and possibly queue ourselves to send
- // it, depending on how much data has been stripped since the last time a
- // packet was sent.
- pCh->infl.asof += count;
-
- if ((pCh->sinceLastFlow += count) >= pCh->whenSendFlow) {
- pCh->sinceLastFlow -= pCh->whenSendFlow;
- write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- i2QueueNeeds(pCh->pMyBord, pCh, NEED_FLOW);
- } else {
- write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- }
-
-i2Input_exit:
-
- ip2trace (CHANN, ITRC_INPUT, ITRC_RETURN, 1, count);
-
- return count;
-}
-
-//******************************************************************************
-// Function: i2InputFlush(pCh)
-// Parameters: Pointer to a channel structure
-// Returns: Number of bytes stripped, or -1 for error
-//
-// Description:
-// Strips any data from the input buffer. If there is a collosal blunder,
-// (invalid structure pointers or the like), returns -1. Otherwise, returns the
-// number of bytes stripped.
-//******************************************************************************
-static int
-i2InputFlush(i2ChanStrPtr pCh)
-{
- int count;
- unsigned long flags;
-
- // Ensure channel structure seems real
- if ( !i2Validate ( pCh ) )
- return -1;
-
- ip2trace (CHANN, ITRC_INPUT, 10, 0);
-
- write_lock_irqsave(&pCh->Ibuf_spinlock, flags);
- count = pCh->Ibuf_stuff - pCh->Ibuf_strip;
-
- // Adjust for buffer wrap
- if (count < 0) {
- count += IBUF_SIZE;
- }
-
- // Expedient way to zero out the buffer
- pCh->Ibuf_strip = pCh->Ibuf_stuff;
-
-
- // Update our flow control information and possibly queue ourselves to send
- // it, depending on how much data has been stripped since the last time a
- // packet was sent.
-
- pCh->infl.asof += count;
-
- if ( (pCh->sinceLastFlow += count) >= pCh->whenSendFlow )
- {
- pCh->sinceLastFlow -= pCh->whenSendFlow;
- write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- i2QueueNeeds(pCh->pMyBord, pCh, NEED_FLOW);
- } else {
- write_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- }
-
- ip2trace (CHANN, ITRC_INPUT, 19, 1, count);
-
- return count;
-}
-
-//******************************************************************************
-// Function: i2InputAvailable(pCh)
-// Parameters: Pointer to a channel structure
-// Returns: Number of bytes available, or -1 for error
-//
-// Description:
-// If there is a collosal blunder, (invalid structure pointers or the like),
-// returns -1. Otherwise, returns the number of bytes stripped. Otherwise,
-// returns the number of bytes available in the buffer.
-//******************************************************************************
-#if 0
-static int
-i2InputAvailable(i2ChanStrPtr pCh)
-{
- int count;
-
- // Ensure channel structure seems real
- if ( !i2Validate ( pCh ) ) return -1;
-
-
- // initialize some accelerators and private copies
- read_lock_irqsave(&pCh->Ibuf_spinlock, flags);
- count = pCh->Ibuf_stuff - pCh->Ibuf_strip;
- read_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-
- // Adjust for buffer wrap
- if (count < 0)
- {
- count += IBUF_SIZE;
- }
-
- return count;
-}
-#endif
-
-//******************************************************************************
-// Function: i2Output(pCh, pSource, count)
-// Parameters: Pointer to channel structure
-// Pointer to source data
-// Number of bytes to send
-// Returns: Number of bytes sent, or -1 for error
-//
-// Description:
-// Queues the data at pSource to be sent as data packets to the board. If there
-// is a collosal blunder, (invalid structure pointers or the like), returns -1.
-// Otherwise, returns the number of bytes written. What if there is not enough
-// room for all the data? If pCh->channelOptions & CO_NBLOCK_WRITE is set, then
-// we transfer as many characters as we can now, then return. If this bit is
-// clear (default), routine will spin along until all the data is buffered.
-// Should this occur, the 1-ms delay routine is called while waiting to avoid
-// applications that one cannot break out of.
-//******************************************************************************
-static int
-i2Output(i2ChanStrPtr pCh, const char *pSource, int count)
-{
- i2eBordStrPtr pB;
- unsigned char *pInsert;
- int amountToMove;
- int countOriginal = count;
- unsigned short channel;
- unsigned short stuffIndex;
- unsigned long flags;
-
- int bailout = 10;
-
- ip2trace (CHANN, ITRC_OUTPUT, ITRC_ENTER, 2, count, 0 );
-
- // Ensure channel structure seems real
- if ( !i2Validate ( pCh ) )
- return -1;
-
- // initialize some accelerators and private copies
- pB = pCh->pMyBord;
- channel = pCh->infl.hd.i2sChannel;
-
- // If the board has gone fatal, return bad, and also hit the trap routine if
- // it exists.
- if (pB->i2eFatal) {
- if (pB->i2eFatalTrap) {
- (*(pB)->i2eFatalTrap)(pB);
- }
- return -1;
- }
- // Proceed as though we would do everything
- while ( count > 0 ) {
-
- // How much room in output buffer is there?
- read_lock_irqsave(&pCh->Obuf_spinlock, flags);
- amountToMove = pCh->Obuf_strip - pCh->Obuf_stuff - 1;
- read_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
- if (amountToMove < 0) {
- amountToMove += OBUF_SIZE;
- }
- // Subtract off the headers size and see how much room there is for real
- // data. If this is negative, we will discover later.
- amountToMove -= sizeof (i2DataHeader);
-
- // Don't move more (now) than can go in a single packet
- if ( amountToMove > (int)(MAX_OBUF_BLOCK - sizeof(i2DataHeader)) ) {
- amountToMove = MAX_OBUF_BLOCK - sizeof(i2DataHeader);
- }
- // Don't move more than the count we were given
- if (amountToMove > count) {
- amountToMove = count;
- }
- // Now we know how much we must move: NB because the ring buffers have
- // an overflow area at the end, we needn't worry about wrapping in the
- // middle of a packet.
-
-// Small WINDOW here with no LOCK but I can't call Flush with LOCK
-// We would be flushing (or ending flush) anyway
-
- ip2trace (CHANN, ITRC_OUTPUT, 10, 1, amountToMove );
-
- if ( !(pCh->flush_flags && i2RetryFlushOutput(pCh) )
- && amountToMove > 0 )
- {
- write_lock_irqsave(&pCh->Obuf_spinlock, flags);
- stuffIndex = pCh->Obuf_stuff;
-
- // Had room to move some data: don't know whether the block size,
- // buffer space, or what was the limiting factor...
- pInsert = &(pCh->Obuf[stuffIndex]);
-
- // Set up the header
- CHANNEL_OF(pInsert) = channel;
- PTYPE_OF(pInsert) = PTYPE_DATA;
- TAG_OF(pInsert) = 0;
- ID_OF(pInsert) = ID_ORDINARY_DATA;
- DATA_COUNT_OF(pInsert) = amountToMove;
-
- // Move the data
- memcpy( (char*)(DATA_OF(pInsert)), pSource, amountToMove );
- // Adjust pointers and indices
- pSource += amountToMove;
- pCh->Obuf_char_count += amountToMove;
- stuffIndex += amountToMove + sizeof(i2DataHeader);
- count -= amountToMove;
-
- if (stuffIndex >= OBUF_SIZE) {
- stuffIndex = 0;
- }
- pCh->Obuf_stuff = stuffIndex;
-
- write_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-
- ip2trace (CHANN, ITRC_OUTPUT, 13, 1, stuffIndex );
-
- } else {
-
- // Cannot move data
- // becuz we need to stuff a flush
- // or amount to move is <= 0
-
- ip2trace(CHANN, ITRC_OUTPUT, 14, 3,
- amountToMove, pB->i2eFifoRemains,
- pB->i2eWaitingForEmptyFifo );
-
- // Put this channel back on queue
- // this ultimatly gets more data or wakes write output
- i2QueueNeeds(pB, pCh, NEED_INLINE);
-
- if ( pB->i2eWaitingForEmptyFifo ) {
-
- ip2trace (CHANN, ITRC_OUTPUT, 16, 0 );
-
- // or schedule
- if (!in_interrupt()) {
-
- ip2trace (CHANN, ITRC_OUTPUT, 61, 0 );
-
- schedule_timeout_interruptible(2);
- if (signal_pending(current)) {
- break;
- }
- continue;
- } else {
-
- ip2trace (CHANN, ITRC_OUTPUT, 62, 0 );
-
- // let interrupt in = WAS restore_flags()
- // We hold no lock nor is irq off anymore???
-
- break;
- }
- break; // from while(count)
- }
- else if ( pB->i2eFifoRemains < 32 && !pB->i2eTxMailEmpty ( pB ) )
- {
- ip2trace (CHANN, ITRC_OUTPUT, 19, 2,
- pB->i2eFifoRemains,
- pB->i2eTxMailEmpty );
-
- break; // from while(count)
- } else if ( pCh->channelNeeds & NEED_CREDIT ) {
-
- ip2trace (CHANN, ITRC_OUTPUT, 22, 0 );
-
- break; // from while(count)
- } else if ( --bailout) {
-
- // Try to throw more things (maybe not us) in the fifo if we're
- // not already waiting for it.
-
- ip2trace (CHANN, ITRC_OUTPUT, 20, 0 );
-
- serviceOutgoingFifo(pB);
- //break; CONTINUE;
- } else {
- ip2trace (CHANN, ITRC_OUTPUT, 21, 3,
- pB->i2eFifoRemains,
- pB->i2eOutMailWaiting,
- pB->i2eWaitingForEmptyFifo );
-
- break; // from while(count)
- }
- }
- } // End of while(count)
-
- i2QueueNeeds(pB, pCh, NEED_INLINE);
-
- // We drop through either when the count expires, or when there is some
- // count left, but there was a non-blocking write.
- if (countOriginal > count) {
-
- ip2trace (CHANN, ITRC_OUTPUT, 17, 2, countOriginal, count );
-
- serviceOutgoingFifo( pB );
- }
-
- ip2trace (CHANN, ITRC_OUTPUT, ITRC_RETURN, 2, countOriginal, count );
-
- return countOriginal - count;
-}
-
-//******************************************************************************
-// Function: i2FlushOutput(pCh)
-// Parameters: Pointer to a channel structure
-// Returns: Nothing
-//
-// Description:
-// Sends bypass command to start flushing (waiting possibly forever until there
-// is room), then sends inline command to stop flushing output, (again waiting
-// possibly forever).
-//******************************************************************************
-static inline void
-i2FlushOutput(i2ChanStrPtr pCh)
-{
-
- ip2trace (CHANN, ITRC_FLUSH, 1, 1, pCh->flush_flags );
-
- if (pCh->flush_flags)
- return;
-
- if ( 1 != i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_STARTFL) ) {
- pCh->flush_flags = STARTFL_FLAG; // Failed - flag for later
-
- ip2trace (CHANN, ITRC_FLUSH, 2, 0 );
-
- } else if ( 1 != i2QueueCommands(PTYPE_INLINE, pCh, 0, 1, CMD_STOPFL) ) {
- pCh->flush_flags = STOPFL_FLAG; // Failed - flag for later
-
- ip2trace (CHANN, ITRC_FLUSH, 3, 0 );
- }
-}
-
-static int
-i2RetryFlushOutput(i2ChanStrPtr pCh)
-{
- int old_flags = pCh->flush_flags;
-
- ip2trace (CHANN, ITRC_FLUSH, 14, 1, old_flags );
-
- pCh->flush_flags = 0; // Clear flag so we can avoid recursion
- // and queue the commands
-
- if ( old_flags & STARTFL_FLAG ) {
- if ( 1 == i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_STARTFL) ) {
- old_flags = STOPFL_FLAG; //Success - send stop flush
- } else {
- old_flags = STARTFL_FLAG; //Failure - Flag for retry later
- }
-
- ip2trace (CHANN, ITRC_FLUSH, 15, 1, old_flags );
-
- }
- if ( old_flags & STOPFL_FLAG ) {
- if (1 == i2QueueCommands(PTYPE_INLINE, pCh, 0, 1, CMD_STOPFL)) {
- old_flags = 0; // Success - clear flags
- }
-
- ip2trace (CHANN, ITRC_FLUSH, 16, 1, old_flags );
- }
- pCh->flush_flags = old_flags;
-
- ip2trace (CHANN, ITRC_FLUSH, 17, 1, old_flags );
-
- return old_flags;
-}
-
-//******************************************************************************
-// Function: i2DrainOutput(pCh,timeout)
-// Parameters: Pointer to a channel structure
-// Maximum period to wait
-// Returns: ?
-//
-// Description:
-// Uses the bookmark request command to ask the board to send a bookmark back as
-// soon as all the data is completely sent.
-//******************************************************************************
-static void
-i2DrainWakeup(unsigned long d)
-{
- i2ChanStrPtr pCh = (i2ChanStrPtr)d;
-
- ip2trace (CHANN, ITRC_DRAIN, 10, 1, pCh->BookmarkTimer.expires );
-
- pCh->BookmarkTimer.expires = 0;
- wake_up_interruptible( &pCh->pBookmarkWait );
-}
-
-static void
-i2DrainOutput(i2ChanStrPtr pCh, int timeout)
-{
- wait_queue_t wait;
- i2eBordStrPtr pB;
-
- ip2trace (CHANN, ITRC_DRAIN, ITRC_ENTER, 1, pCh->BookmarkTimer.expires);
-
- pB = pCh->pMyBord;
- // If the board has gone fatal, return bad,
- // and also hit the trap routine if it exists.
- if (pB->i2eFatal) {
- if (pB->i2eFatalTrap) {
- (*(pB)->i2eFatalTrap)(pB);
- }
- return;
- }
- if ((timeout > 0) && (pCh->BookmarkTimer.expires == 0 )) {
- // One per customer (channel)
- setup_timer(&pCh->BookmarkTimer, i2DrainWakeup,
- (unsigned long)pCh);
-
- ip2trace (CHANN, ITRC_DRAIN, 1, 1, pCh->BookmarkTimer.expires );
-
- mod_timer(&pCh->BookmarkTimer, jiffies + timeout);
- }
-
- i2QueueCommands( PTYPE_INLINE, pCh, -1, 1, CMD_BMARK_REQ );
-
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&(pCh->pBookmarkWait), &wait);
- set_current_state( TASK_INTERRUPTIBLE );
-
- serviceOutgoingFifo( pB );
-
- schedule(); // Now we take our interruptible sleep on
-
- // Clean up the queue
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&(pCh->pBookmarkWait), &wait);
-
- // if expires == 0 then timer poped, then do not need to del_timer
- if ((timeout > 0) && pCh->BookmarkTimer.expires &&
- time_before(jiffies, pCh->BookmarkTimer.expires)) {
- del_timer( &(pCh->BookmarkTimer) );
- pCh->BookmarkTimer.expires = 0;
-
- ip2trace (CHANN, ITRC_DRAIN, 3, 1, pCh->BookmarkTimer.expires );
-
- }
- ip2trace (CHANN, ITRC_DRAIN, ITRC_RETURN, 1, pCh->BookmarkTimer.expires );
- return;
-}
-
-//******************************************************************************
-// Function: i2OutputFree(pCh)
-// Parameters: Pointer to a channel structure
-// Returns: Space in output buffer
-//
-// Description:
-// Returns -1 if very gross error. Otherwise returns the amount of bytes still
-// free in the output buffer.
-//******************************************************************************
-static int
-i2OutputFree(i2ChanStrPtr pCh)
-{
- int amountToMove;
- unsigned long flags;
-
- // Ensure channel structure seems real
- if ( !i2Validate ( pCh ) ) {
- return -1;
- }
- read_lock_irqsave(&pCh->Obuf_spinlock, flags);
- amountToMove = pCh->Obuf_strip - pCh->Obuf_stuff - 1;
- read_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
-
- if (amountToMove < 0) {
- amountToMove += OBUF_SIZE;
- }
- // If this is negative, we will discover later
- amountToMove -= sizeof(i2DataHeader);
-
- return (amountToMove < 0) ? 0 : amountToMove;
-}
-static void
-
-ip2_owake( PTTY tp)
-{
- i2ChanStrPtr pCh;
-
- if (tp == NULL) return;
-
- pCh = tp->driver_data;
-
- ip2trace (CHANN, ITRC_SICMD, 10, 2, tp->flags,
- (1 << TTY_DO_WRITE_WAKEUP) );
-
- tty_wakeup(tp);
-}
-
-static inline void
-set_baud_params(i2eBordStrPtr pB)
-{
- int i,j;
- i2ChanStrPtr *pCh;
-
- pCh = (i2ChanStrPtr *) pB->i2eChannelPtr;
-
- for (i = 0; i < ABS_MAX_BOXES; i++) {
- if (pB->channelBtypes.bid_value[i]) {
- if (BID_HAS_654(pB->channelBtypes.bid_value[i])) {
- for (j = 0; j < ABS_BIGGEST_BOX; j++) {
- if (pCh[i*16+j] == NULL)
- break;
- (pCh[i*16+j])->BaudBase = 921600; // MAX for ST654
- (pCh[i*16+j])->BaudDivisor = 96;
- }
- } else { // has cirrus cd1400
- for (j = 0; j < ABS_BIGGEST_BOX; j++) {
- if (pCh[i*16+j] == NULL)
- break;
- (pCh[i*16+j])->BaudBase = 115200; // MAX for CD1400
- (pCh[i*16+j])->BaudDivisor = 12;
- }
- }
- }
- }
-}
-
-//******************************************************************************
-// Function: i2StripFifo(pB)
-// Parameters: Pointer to a board structure
-// Returns: ?
-//
-// Description:
-// Strips all the available data from the incoming FIFO, identifies the type of
-// packet, and either buffers the data or does what needs to be done.
-//
-// Note there is no overflow checking here: if the board sends more data than it
-// ought to, we will not detect it here, but blindly overflow...
-//******************************************************************************
-
-// A buffer for reading in blocks for unknown channels
-static unsigned char junkBuffer[IBUF_SIZE];
-
-// A buffer to read in a status packet. Because of the size of the count field
-// for these things, the maximum packet size must be less than MAX_CMD_PACK_SIZE
-static unsigned char cmdBuffer[MAX_CMD_PACK_SIZE + 4];
-
-// This table changes the bit order from MSR order given by STAT_MODEM packet to
-// status bits used in our library.
-static char xlatDss[16] = {
-0 | 0 | 0 | 0 ,
-0 | 0 | 0 | I2_CTS ,
-0 | 0 | I2_DSR | 0 ,
-0 | 0 | I2_DSR | I2_CTS ,
-0 | I2_RI | 0 | 0 ,
-0 | I2_RI | 0 | I2_CTS ,
-0 | I2_RI | I2_DSR | 0 ,
-0 | I2_RI | I2_DSR | I2_CTS ,
-I2_DCD | 0 | 0 | 0 ,
-I2_DCD | 0 | 0 | I2_CTS ,
-I2_DCD | 0 | I2_DSR | 0 ,
-I2_DCD | 0 | I2_DSR | I2_CTS ,
-I2_DCD | I2_RI | 0 | 0 ,
-I2_DCD | I2_RI | 0 | I2_CTS ,
-I2_DCD | I2_RI | I2_DSR | 0 ,
-I2_DCD | I2_RI | I2_DSR | I2_CTS };
-
-static inline void
-i2StripFifo(i2eBordStrPtr pB)
-{
- i2ChanStrPtr pCh;
- int channel;
- int count;
- unsigned short stuffIndex;
- int amountToRead;
- unsigned char *pc, *pcLimit;
- unsigned char uc;
- unsigned char dss_change;
- unsigned long bflags,cflags;
-
-// ip2trace (ITRC_NO_PORT, ITRC_SFIFO, ITRC_ENTER, 0 );
-
- while (I2_HAS_INPUT(pB)) {
-// ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 2, 0 );
-
- // Process packet from fifo a one atomic unit
- write_lock_irqsave(&pB->read_fifo_spinlock, bflags);
-
- // The first word (or two bytes) will have channel number and type of
- // packet, possibly other information
- pB->i2eLeadoffWord[0] = iiReadWord(pB);
-
- switch(PTYPE_OF(pB->i2eLeadoffWord))
- {
- case PTYPE_DATA:
- pB->got_input = 1;
-
-// ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 3, 0 );
-
- channel = CHANNEL_OF(pB->i2eLeadoffWord); /* Store channel */
- count = iiReadWord(pB); /* Count is in the next word */
-
-// NEW: Check the count for sanity! Should the hardware fail, our death
-// is more pleasant. While an oversize channel is acceptable (just more
-// than the driver supports), an over-length count clearly means we are
-// sick!
- if ( ((unsigned int)count) > IBUF_SIZE ) {
- pB->i2eFatal = 2;
- write_unlock_irqrestore(&pB->read_fifo_spinlock,
- bflags);
- return; /* Bail out ASAP */
- }
- // Channel is illegally big ?
- if ((channel >= pB->i2eChannelCnt) ||
- (NULL==(pCh = ((i2ChanStrPtr*)pB->i2eChannelPtr)[channel])))
- {
- iiReadBuf(pB, junkBuffer, count);
- write_unlock_irqrestore(&pB->read_fifo_spinlock,
- bflags);
- break; /* From switch: ready for next packet */
- }
-
- // Channel should be valid, then
-
- // If this is a hot-key, merely post its receipt for now. These are
- // always supposed to be 1-byte packets, so we won't even check the
- // count. Also we will post an acknowledgement to the board so that
- // more data can be forthcoming. Note that we are not trying to use
- // these sequences in this driver, merely to robustly ignore them.
- if(ID_OF(pB->i2eLeadoffWord) == ID_HOT_KEY)
- {
- pCh->hotKeyIn = iiReadWord(pB) & 0xff;
- write_unlock_irqrestore(&pB->read_fifo_spinlock,
- bflags);
- i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_HOTACK);
- break; /* From the switch: ready for next packet */
- }
-
- // Normal data! We crudely assume there is room for the data in our
- // buffer because the board wouldn't have exceeded his credit limit.
- write_lock_irqsave(&pCh->Ibuf_spinlock, cflags);
- // We have 2 locks now
- stuffIndex = pCh->Ibuf_stuff;
- amountToRead = IBUF_SIZE - stuffIndex;
- if (amountToRead > count)
- amountToRead = count;
-
- // stuffIndex would have been already adjusted so there would
- // always be room for at least one, and count is always at least
- // one.
-
- iiReadBuf(pB, &(pCh->Ibuf[stuffIndex]), amountToRead);
- pCh->icount.rx += amountToRead;
-
- // Update the stuffIndex by the amount of data moved. Note we could
- // never ask for more data than would just fit. However, we might
- // have read in one more byte than we wanted because the read
- // rounds up to even bytes. If this byte is on the end of the
- // packet, and is padding, we ignore it. If the byte is part of
- // the actual data, we need to move it.
-
- stuffIndex += amountToRead;
-
- if (stuffIndex >= IBUF_SIZE) {
- if ((amountToRead & 1) && (count > amountToRead)) {
- pCh->Ibuf[0] = pCh->Ibuf[IBUF_SIZE];
- amountToRead++;
- stuffIndex = 1;
- } else {
- stuffIndex = 0;
- }
- }
-
- // If there is anything left over, read it as well
- if (count > amountToRead) {
- amountToRead = count - amountToRead;
- iiReadBuf(pB, &(pCh->Ibuf[stuffIndex]), amountToRead);
- pCh->icount.rx += amountToRead;
- stuffIndex += amountToRead;
- }
-
- // Update stuff index
- pCh->Ibuf_stuff = stuffIndex;
- write_unlock_irqrestore(&pCh->Ibuf_spinlock, cflags);
- write_unlock_irqrestore(&pB->read_fifo_spinlock,
- bflags);
-
-#ifdef USE_IQ
- schedule_work(&pCh->tqueue_input);
-#else
- do_input(&pCh->tqueue_input);
-#endif
-
- // Note we do not need to maintain any flow-control credits at this
- // time: if we were to increment .asof and decrement .room, there
- // would be no net effect. Instead, when we strip data, we will
- // increment .asof and leave .room unchanged.
-
- break; // From switch: ready for next packet
-
- case PTYPE_STATUS:
- ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 4, 0 );
-
- count = CMD_COUNT_OF(pB->i2eLeadoffWord);
-
- iiReadBuf(pB, cmdBuffer, count);
- // We can release early with buffer grab
- write_unlock_irqrestore(&pB->read_fifo_spinlock,
- bflags);
-
- pc = cmdBuffer;
- pcLimit = &(cmdBuffer[count]);
-
- while (pc < pcLimit) {
- channel = *pc++;
-
- ip2trace (channel, ITRC_SFIFO, 7, 2, channel, *pc );
-
- /* check for valid channel */
- if (channel < pB->i2eChannelCnt
- &&
- (pCh = (((i2ChanStrPtr*)pB->i2eChannelPtr)[channel])) != NULL
- )
- {
- dss_change = 0;
-
- switch (uc = *pc++)
- {
- /* Breaks and modem signals are easy: just update status */
- case STAT_CTS_UP:
- if ( !(pCh->dataSetIn & I2_CTS) )
- {
- pCh->dataSetIn |= I2_DCTS;
- pCh->icount.cts++;
- dss_change = 1;
- }
- pCh->dataSetIn |= I2_CTS;
- break;
-
- case STAT_CTS_DN:
- if ( pCh->dataSetIn & I2_CTS )
- {
- pCh->dataSetIn |= I2_DCTS;
- pCh->icount.cts++;
- dss_change = 1;
- }
- pCh->dataSetIn &= ~I2_CTS;
- break;
-
- case STAT_DCD_UP:
- ip2trace (channel, ITRC_MODEM, 1, 1, pCh->dataSetIn );
-
- if ( !(pCh->dataSetIn & I2_DCD) )
- {
- ip2trace (CHANN, ITRC_MODEM, 2, 0 );
- pCh->dataSetIn |= I2_DDCD;
- pCh->icount.dcd++;
- dss_change = 1;
- }
- pCh->dataSetIn |= I2_DCD;
-
- ip2trace (channel, ITRC_MODEM, 3, 1, pCh->dataSetIn );
- break;
-
- case STAT_DCD_DN:
- ip2trace (channel, ITRC_MODEM, 4, 1, pCh->dataSetIn );
- if ( pCh->dataSetIn & I2_DCD )
- {
- ip2trace (channel, ITRC_MODEM, 5, 0 );
- pCh->dataSetIn |= I2_DDCD;
- pCh->icount.dcd++;
- dss_change = 1;
- }
- pCh->dataSetIn &= ~I2_DCD;
-
- ip2trace (channel, ITRC_MODEM, 6, 1, pCh->dataSetIn );
- break;
-
- case STAT_DSR_UP:
- if ( !(pCh->dataSetIn & I2_DSR) )
- {
- pCh->dataSetIn |= I2_DDSR;
- pCh->icount.dsr++;
- dss_change = 1;
- }
- pCh->dataSetIn |= I2_DSR;
- break;
-
- case STAT_DSR_DN:
- if ( pCh->dataSetIn & I2_DSR )
- {
- pCh->dataSetIn |= I2_DDSR;
- pCh->icount.dsr++;
- dss_change = 1;
- }
- pCh->dataSetIn &= ~I2_DSR;
- break;
-
- case STAT_RI_UP:
- if ( !(pCh->dataSetIn & I2_RI) )
- {
- pCh->dataSetIn |= I2_DRI;
- pCh->icount.rng++;
- dss_change = 1;
- }
- pCh->dataSetIn |= I2_RI ;
- break;
-
- case STAT_RI_DN:
- // to be compat with serial.c
- //if ( pCh->dataSetIn & I2_RI )
- //{
- // pCh->dataSetIn |= I2_DRI;
- // pCh->icount.rng++;
- // dss_change = 1;
- //}
- pCh->dataSetIn &= ~I2_RI ;
- break;
-
- case STAT_BRK_DET:
- pCh->dataSetIn |= I2_BRK;
- pCh->icount.brk++;
- dss_change = 1;
- break;
-
- // Bookmarks? one less request we're waiting for
- case STAT_BMARK:
- pCh->bookMarks--;
- if (pCh->bookMarks <= 0 ) {
- pCh->bookMarks = 0;
- wake_up_interruptible( &pCh->pBookmarkWait );
-
- ip2trace (channel, ITRC_DRAIN, 20, 1, pCh->BookmarkTimer.expires );
- }
- break;
-
- // Flow control packets? Update the new credits, and if
- // someone was waiting for output, queue him up again.
- case STAT_FLOW:
- pCh->outfl.room =
- ((flowStatPtr)pc)->room -
- (pCh->outfl.asof - ((flowStatPtr)pc)->asof);
-
- ip2trace (channel, ITRC_STFLW, 1, 1, pCh->outfl.room );
-
- if (pCh->channelNeeds & NEED_CREDIT)
- {
- ip2trace (channel, ITRC_STFLW, 2, 1, pCh->channelNeeds);
-
- pCh->channelNeeds &= ~NEED_CREDIT;
- i2QueueNeeds(pB, pCh, NEED_INLINE);
- if ( pCh->pTTY )
- ip2_owake(pCh->pTTY);
- }
-
- ip2trace (channel, ITRC_STFLW, 3, 1, pCh->channelNeeds);
-
- pc += sizeof(flowStat);
- break;
-
- /* Special packets: */
- /* Just copy the information into the channel structure */
-
- case STAT_STATUS:
-
- pCh->channelStatus = *((debugStatPtr)pc);
- pc += sizeof(debugStat);
- break;
-
- case STAT_TXCNT:
-
- pCh->channelTcount = *((cntStatPtr)pc);
- pc += sizeof(cntStat);
- break;
-
- case STAT_RXCNT:
-
- pCh->channelRcount = *((cntStatPtr)pc);
- pc += sizeof(cntStat);
- break;
-
- case STAT_BOXIDS:
- pB->channelBtypes = *((bidStatPtr)pc);
- pc += sizeof(bidStat);
- set_baud_params(pB);
- break;
-
- case STAT_HWFAIL:
- i2QueueCommands (PTYPE_INLINE, pCh, 0, 1, CMD_HW_TEST);
- pCh->channelFail = *((failStatPtr)pc);
- pc += sizeof(failStat);
- break;
-
- /* No explicit match? then
- * Might be an error packet...
- */
- default:
- switch (uc & STAT_MOD_ERROR)
- {
- case STAT_ERROR:
- if (uc & STAT_E_PARITY) {
- pCh->dataSetIn |= I2_PAR;
- pCh->icount.parity++;
- }
- if (uc & STAT_E_FRAMING){
- pCh->dataSetIn |= I2_FRA;
- pCh->icount.frame++;
- }
- if (uc & STAT_E_OVERRUN){
- pCh->dataSetIn |= I2_OVR;
- pCh->icount.overrun++;
- }
- break;
-
- case STAT_MODEM:
- // the answer to DSS_NOW request (not change)
- pCh->dataSetIn = (pCh->dataSetIn
- & ~(I2_RI | I2_CTS | I2_DCD | I2_DSR) )
- | xlatDss[uc & 0xf];
- wake_up_interruptible ( &pCh->dss_now_wait );
- default:
- break;
- }
- } /* End of switch on status type */
- if (dss_change) {
-#ifdef USE_IQ
- schedule_work(&pCh->tqueue_status);
-#else
- do_status(&pCh->tqueue_status);
-#endif
- }
- }
- else /* Or else, channel is invalid */
- {
- // Even though the channel is invalid, we must test the
- // status to see how much additional data it has (to be
- // skipped)
- switch (*pc++)
- {
- case STAT_FLOW:
- pc += 4; /* Skip the data */
- break;
-
- default:
- break;
- }
- }
- } // End of while (there is still some status packet left)
- break;
-
- default: // Neither packet? should be impossible
- ip2trace (ITRC_NO_PORT, ITRC_SFIFO, 5, 1,
- PTYPE_OF(pB->i2eLeadoffWord) );
- write_unlock_irqrestore(&pB->read_fifo_spinlock,
- bflags);
-
- break;
- } // End of switch on type of packets
- } /*while(board I2_HAS_INPUT)*/
-
- ip2trace (ITRC_NO_PORT, ITRC_SFIFO, ITRC_RETURN, 0 );
-
- // Send acknowledgement to the board even if there was no data!
- pB->i2eOutMailWaiting |= MB_IN_STRIPPED;
- return;
-}
-
-//******************************************************************************
-// Function: i2Write2Fifo(pB,address,count)
-// Parameters: Pointer to a board structure, source address, byte count
-// Returns: bytes written
-//
-// Description:
-// Writes count bytes to board io address(implied) from source
-// Adjusts count, leaves reserve for next time around bypass cmds
-//******************************************************************************
-static int
-i2Write2Fifo(i2eBordStrPtr pB, unsigned char *source, int count,int reserve)
-{
- int rc = 0;
- unsigned long flags;
- write_lock_irqsave(&pB->write_fifo_spinlock, flags);
- if (!pB->i2eWaitingForEmptyFifo) {
- if (pB->i2eFifoRemains > (count+reserve)) {
- pB->i2eFifoRemains -= count;
- iiWriteBuf(pB, source, count);
- pB->i2eOutMailWaiting |= MB_OUT_STUFFED;
- rc = count;
- }
- }
- write_unlock_irqrestore(&pB->write_fifo_spinlock, flags);
- return rc;
-}
-//******************************************************************************
-// Function: i2StuffFifoBypass(pB)
-// Parameters: Pointer to a board structure
-// Returns: Nothing
-//
-// Description:
-// Stuffs as many bypass commands into the fifo as possible. This is simpler
-// than stuffing data or inline commands to fifo, since we do not have
-// flow-control to deal with.
-//******************************************************************************
-static inline void
-i2StuffFifoBypass(i2eBordStrPtr pB)
-{
- i2ChanStrPtr pCh;
- unsigned char *pRemove;
- unsigned short stripIndex;
- unsigned short packetSize;
- unsigned short paddedSize;
- unsigned short notClogged = 1;
- unsigned long flags;
-
- int bailout = 1000;
-
- // Continue processing so long as there are entries, or there is room in the
- // fifo. Each entry represents a channel with something to do.
- while ( --bailout && notClogged &&
- (NULL != (pCh = i2DeQueueNeeds(pB,NEED_BYPASS))))
- {
- write_lock_irqsave(&pCh->Cbuf_spinlock, flags);
- stripIndex = pCh->Cbuf_strip;
-
- // as long as there are packets for this channel...
-
- while (stripIndex != pCh->Cbuf_stuff) {
- pRemove = &(pCh->Cbuf[stripIndex]);
- packetSize = CMD_COUNT_OF(pRemove) + sizeof(i2CmdHeader);
- paddedSize = roundup(packetSize, 2);
-
- if (paddedSize > 0) {
- if ( 0 == i2Write2Fifo(pB, pRemove, paddedSize,0)) {
- notClogged = 0; /* fifo full */
- i2QueueNeeds(pB, pCh, NEED_BYPASS); // Put back on queue
- break; // Break from the channel
- }
- }
-#ifdef DEBUG_FIFO
-WriteDBGBuf("BYPS", pRemove, paddedSize);
-#endif /* DEBUG_FIFO */
- pB->debugBypassCount++;
-
- pRemove += packetSize;
- stripIndex += packetSize;
- if (stripIndex >= CBUF_SIZE) {
- stripIndex = 0;
- pRemove = pCh->Cbuf;
- }
- }
- // Done with this channel. Move to next, removing this one from
- // the queue of channels if we cleaned it out (i.e., didn't get clogged.
- pCh->Cbuf_strip = stripIndex;
- write_unlock_irqrestore(&pCh->Cbuf_spinlock, flags);
- } // Either clogged or finished all the work
-
-#ifdef IP2DEBUG_TRACE
- if ( !bailout ) {
- ip2trace (ITRC_NO_PORT, ITRC_ERROR, 1, 0 );
- }
-#endif
-}
-
-//******************************************************************************
-// Function: i2StuffFifoFlow(pB)
-// Parameters: Pointer to a board structure
-// Returns: Nothing
-//
-// Description:
-// Stuffs as many flow control packets into the fifo as possible. This is easier
-// even than doing normal bypass commands, because there is always at most one
-// packet, already assembled, for each channel.
-//******************************************************************************
-static inline void
-i2StuffFifoFlow(i2eBordStrPtr pB)
-{
- i2ChanStrPtr pCh;
- unsigned short paddedSize = roundup(sizeof(flowIn), 2);
-
- ip2trace (ITRC_NO_PORT, ITRC_SFLOW, ITRC_ENTER, 2,
- pB->i2eFifoRemains, paddedSize );
-
- // Continue processing so long as there are entries, or there is room in the
- // fifo. Each entry represents a channel with something to do.
- while ( (NULL != (pCh = i2DeQueueNeeds(pB,NEED_FLOW)))) {
- pB->debugFlowCount++;
-
- // NO Chan LOCK needed ???
- if ( 0 == i2Write2Fifo(pB,(unsigned char *)&(pCh->infl),paddedSize,0)) {
- break;
- }
-#ifdef DEBUG_FIFO
- WriteDBGBuf("FLOW",(unsigned char *) &(pCh->infl), paddedSize);
-#endif /* DEBUG_FIFO */
-
- } // Either clogged or finished all the work
-
- ip2trace (ITRC_NO_PORT, ITRC_SFLOW, ITRC_RETURN, 0 );
-}
-
-//******************************************************************************
-// Function: i2StuffFifoInline(pB)
-// Parameters: Pointer to a board structure
-// Returns: Nothing
-//
-// Description:
-// Stuffs as much data and inline commands into the fifo as possible. This is
-// the most complex fifo-stuffing operation, since there if now the channel
-// flow-control issue to deal with.
-//******************************************************************************
-static inline void
-i2StuffFifoInline(i2eBordStrPtr pB)
-{
- i2ChanStrPtr pCh;
- unsigned char *pRemove;
- unsigned short stripIndex;
- unsigned short packetSize;
- unsigned short paddedSize;
- unsigned short notClogged = 1;
- unsigned short flowsize;
- unsigned long flags;
-
- int bailout = 1000;
- int bailout2;
-
- ip2trace (ITRC_NO_PORT, ITRC_SICMD, ITRC_ENTER, 3, pB->i2eFifoRemains,
- pB->i2Dbuf_strip, pB->i2Dbuf_stuff );
-
- // Continue processing so long as there are entries, or there is room in the
- // fifo. Each entry represents a channel with something to do.
- while ( --bailout && notClogged &&
- (NULL != (pCh = i2DeQueueNeeds(pB,NEED_INLINE))) )
- {
- write_lock_irqsave(&pCh->Obuf_spinlock, flags);
- stripIndex = pCh->Obuf_strip;
-
- ip2trace (CHANN, ITRC_SICMD, 3, 2, stripIndex, pCh->Obuf_stuff );
-
- // as long as there are packets for this channel...
- bailout2 = 1000;
- while ( --bailout2 && stripIndex != pCh->Obuf_stuff) {
- pRemove = &(pCh->Obuf[stripIndex]);
-
- // Must determine whether this be a data or command packet to
- // calculate correctly the header size and the amount of
- // flow-control credit this type of packet will use.
- if (PTYPE_OF(pRemove) == PTYPE_DATA) {
- flowsize = DATA_COUNT_OF(pRemove);
- packetSize = flowsize + sizeof(i2DataHeader);
- } else {
- flowsize = CMD_COUNT_OF(pRemove);
- packetSize = flowsize + sizeof(i2CmdHeader);
- }
- flowsize = CREDIT_USAGE(flowsize);
- paddedSize = roundup(packetSize, 2);
-
- ip2trace (CHANN, ITRC_SICMD, 4, 2, pB->i2eFifoRemains, paddedSize );
-
- // If we don't have enough credits from the board to send the data,
- // flag the channel that we are waiting for flow control credit, and
- // break out. This will clean up this channel and remove us from the
- // queue of hot things to do.
-
- ip2trace (CHANN, ITRC_SICMD, 5, 2, pCh->outfl.room, flowsize );
-
- if (pCh->outfl.room <= flowsize) {
- // Do Not have the credits to send this packet.
- i2QueueNeeds(pB, pCh, NEED_CREDIT);
- notClogged = 0;
- break; // So to do next channel
- }
- if ( (paddedSize > 0)
- && ( 0 == i2Write2Fifo(pB, pRemove, paddedSize, 128))) {
- // Do Not have room in fifo to send this packet.
- notClogged = 0;
- i2QueueNeeds(pB, pCh, NEED_INLINE);
- break; // Break from the channel
- }
-#ifdef DEBUG_FIFO
-WriteDBGBuf("DATA", pRemove, paddedSize);
-#endif /* DEBUG_FIFO */
- pB->debugInlineCount++;
-
- pCh->icount.tx += flowsize;
- // Update current credits
- pCh->outfl.room -= flowsize;
- pCh->outfl.asof += flowsize;
- if (PTYPE_OF(pRemove) == PTYPE_DATA) {
- pCh->Obuf_char_count -= DATA_COUNT_OF(pRemove);
- }
- pRemove += packetSize;
- stripIndex += packetSize;
-
- ip2trace (CHANN, ITRC_SICMD, 6, 2, stripIndex, pCh->Obuf_strip);
-
- if (stripIndex >= OBUF_SIZE) {
- stripIndex = 0;
- pRemove = pCh->Obuf;
-
- ip2trace (CHANN, ITRC_SICMD, 7, 1, stripIndex );
-
- }
- } /* while */
- if ( !bailout2 ) {
- ip2trace (CHANN, ITRC_ERROR, 3, 0 );
- }
- // Done with this channel. Move to next, removing this one from the
- // queue of channels if we cleaned it out (i.e., didn't get clogged.
- pCh->Obuf_strip = stripIndex;
- write_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
- if ( notClogged )
- {
-
- ip2trace (CHANN, ITRC_SICMD, 8, 0 );
-
- if ( pCh->pTTY ) {
- ip2_owake(pCh->pTTY);
- }
- }
- } // Either clogged or finished all the work
-
- if ( !bailout ) {
- ip2trace (ITRC_NO_PORT, ITRC_ERROR, 4, 0 );
- }
-
- ip2trace (ITRC_NO_PORT, ITRC_SICMD, ITRC_RETURN, 1,pB->i2Dbuf_strip);
-}
-
-//******************************************************************************
-// Function: serviceOutgoingFifo(pB)
-// Parameters: Pointer to a board structure
-// Returns: Nothing
-//
-// Description:
-// Helper routine to put data in the outgoing fifo, if we aren't already waiting
-// for something to be there. If the fifo has only room for a very little data,
-// go head and hit the board with a mailbox hit immediately. Otherwise, it will
-// have to happen later in the interrupt processing. Since this routine may be
-// called both at interrupt and foreground time, we must turn off interrupts
-// during the entire process.
-//******************************************************************************
-static void
-serviceOutgoingFifo(i2eBordStrPtr pB)
-{
- // If we aren't currently waiting for the board to empty our fifo, service
- // everything that is pending, in priority order (especially, Bypass before
- // Inline).
- if ( ! pB->i2eWaitingForEmptyFifo )
- {
- i2StuffFifoFlow(pB);
- i2StuffFifoBypass(pB);
- i2StuffFifoInline(pB);
-
- iiSendPendingMail(pB);
- }
-}
-
-//******************************************************************************
-// Function: i2ServiceBoard(pB)
-// Parameters: Pointer to a board structure
-// Returns: Nothing
-//
-// Description:
-// Normally this is called from interrupt level, but there is deliberately
-// nothing in here specific to being called from interrupt level. All the
-// hardware-specific, interrupt-specific things happen at the outer levels.
-//
-// For example, a timer interrupt could drive this routine for some sort of
-// polled operation. The only requirement is that the programmer deal with any
-// atomiticity/concurrency issues that result.
-//
-// This routine responds to the board's having sent mailbox information to the
-// host (which would normally cause an interrupt). This routine reads the
-// incoming mailbox. If there is no data in it, this board did not create the
-// interrupt and/or has nothing to be done to it. (Except, if we have been
-// waiting to write mailbox data to it, we may do so.
-//
-// Based on the value in the mailbox, we may take various actions.
-//
-// No checking here of pB validity: after all, it shouldn't have been called by
-// the handler unless pB were on the list.
-//******************************************************************************
-static inline int
-i2ServiceBoard ( i2eBordStrPtr pB )
-{
- unsigned inmail;
- unsigned long flags;
-
-
- /* This should be atomic because of the way we are called... */
- if (NO_MAIL_HERE == ( inmail = pB->i2eStartMail ) ) {
- inmail = iiGetMail(pB);
- }
- pB->i2eStartMail = NO_MAIL_HERE;
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, 2, 1, inmail );
-
- if (inmail != NO_MAIL_HERE) {
- // If the board has gone fatal, nothing to do but hit a bit that will
- // alert foreground tasks to protest!
- if ( inmail & MB_FATAL_ERROR ) {
- pB->i2eFatal = 1;
- goto exit_i2ServiceBoard;
- }
-
- /* Assuming no fatal condition, we proceed to do work */
- if ( inmail & MB_IN_STUFFED ) {
- pB->i2eFifoInInts++;
- i2StripFifo(pB); /* There might be incoming packets */
- }
-
- if (inmail & MB_OUT_STRIPPED) {
- pB->i2eFifoOutInts++;
- write_lock_irqsave(&pB->write_fifo_spinlock, flags);
- pB->i2eFifoRemains = pB->i2eFifoSize;
- pB->i2eWaitingForEmptyFifo = 0;
- write_unlock_irqrestore(&pB->write_fifo_spinlock,
- flags);
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, 30, 1, pB->i2eFifoRemains );
-
- }
- serviceOutgoingFifo(pB);
- }
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, 8, 0 );
-
-exit_i2ServiceBoard:
-
- return 0;
-}
diff --git a/drivers/char/ip2/i2lib.h b/drivers/char/ip2/i2lib.h
deleted file mode 100644
index e559e9bac06..00000000000
--- a/drivers/char/ip2/i2lib.h
+++ /dev/null
@@ -1,351 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Header file for high level library functions
-*
-*******************************************************************************/
-#ifndef I2LIB_H
-#define I2LIB_H 1
-//------------------------------------------------------------------------------
-// I2LIB.H
-//
-// IntelliPort-II and IntelliPort-IIEX
-//
-// Defines, structure definitions, and external declarations for i2lib.c
-//------------------------------------------------------------------------------
-//--------------------------------------
-// Mandatory Includes:
-//--------------------------------------
-#include "ip2types.h"
-#include "i2ellis.h"
-#include "i2pack.h"
-#include "i2cmd.h"
-#include <linux/workqueue.h>
-
-//------------------------------------------------------------------------------
-// i2ChanStr -- Channel Structure:
-// Used to track per-channel information for the library routines using standard
-// loadware. Note also, a pointer to an array of these structures is patched
-// into the i2eBordStr (see i2ellis.h)
-//------------------------------------------------------------------------------
-//
-// If we make some limits on the maximum block sizes, we can avoid dealing with
-// buffer wrap. The wrapping of the buffer is based on where the start of the
-// packet is. Then there is always room for the packet contiguously.
-//
-// Maximum total length of an outgoing data or in-line command block. The limit
-// of 36 on data is quite arbitrary and based more on DOS memory limitations
-// than the board interface. However, for commands, the maximum packet length is
-// MAX_CMD_PACK_SIZE, because the field size for the count is only a few bits
-// (see I2PACK.H) in such packets. For data packets, the count field size is not
-// the limiting factor. As of this writing, MAX_OBUF_BLOCK < MAX_CMD_PACK_SIZE,
-// but be careful if wanting to modify either.
-//
-#define MAX_OBUF_BLOCK 36
-
-// Another note on maximum block sizes: we are buffering packets here. Data is
-// put into the buffer (if there is room) regardless of the credits from the
-// board. The board sends new credits whenever it has removed from his buffers a
-// number of characters equal to 80% of total buffer size. (Of course, the total
-// buffer size is what is reported when the very first set of flow control
-// status packets are received from the board. Therefore, to be robust, you must
-// always fill the board to at least 80% of the current credit limit, else you
-// might not give it enough to trigger a new report. These conditions are
-// obtained here so long as the maximum output block size is less than 20% the
-// size of the board's output buffers. This is true at present by "coincidence"
-// or "infernal knowledge": the board's output buffers are at least 700 bytes
-// long (20% = 140 bytes, at least). The 80% figure is "official", so the safest
-// strategy might be to trap the first flow control report and guarantee that
-// the effective maxObufBlock is the minimum of MAX_OBUF_BLOCK and 20% of first
-// reported buffer credit.
-//
-#define MAX_CBUF_BLOCK 6 // Maximum total length of a bypass command block
-
-#define IBUF_SIZE 512 // character capacity of input buffer per channel
-#define OBUF_SIZE 1024// character capacity of output buffer per channel
-#define CBUF_SIZE 10 // character capacity of output bypass buffer
-
-typedef struct _i2ChanStr
-{
- // First, back-pointers so that given a pointer to this structure, you can
- // determine the correct board and channel number to reference, (say, when
- // issuing commands, etc. (Note, channel number is in infl.hd.i2sChannel.)
-
- int port_index; // Index of port in channel structure array attached
- // to board structure.
- PTTY pTTY; // Pointer to tty structure for port (OS specific)
- USHORT validity; // Indicates whether the given channel has been
- // initialized, really exists (or is a missing
- // channel, e.g. channel 9 on an 8-port box.)
-
- i2eBordStrPtr pMyBord; // Back-pointer to this channel's board structure
-
- int wopen; // waiting fer carrier
-
- int throttled; // Set if upper layer can take no data
-
- int flags; // Defined in tty.h
-
- PWAITQ open_wait; // Pointer for OS sleep function.
- PWAITQ close_wait; // Pointer for OS sleep function.
- PWAITQ delta_msr_wait;// Pointer for OS sleep function.
- PWAITQ dss_now_wait; // Pointer for OS sleep function.
-
- struct timer_list BookmarkTimer; // Used by i2DrainOutput
- wait_queue_head_t pBookmarkWait; // Used by i2DrainOutput
-
- int BaudBase;
- int BaudDivisor;
-
- USHORT ClosingDelay;
- USHORT ClosingWaitTime;
-
- volatile
- flowIn infl; // This structure is initialized as a completely
- // formed flow-control command packet, and as such
- // has the channel number, also the capacity and
- // "as-of" data needed continuously.
-
- USHORT sinceLastFlow; // Counts the number of characters read from input
- // buffers, since the last time flow control info
- // was sent.
-
- USHORT whenSendFlow; // Determines when new flow control is to be sent to
- // the board. Note unlike earlier manifestations of
- // the driver, these packets can be sent from
- // in-place.
-
- USHORT channelNeeds; // Bit map of important things which must be done
- // for this channel. (See bits below )
-
- volatile
- flowStat outfl; // Same type of structure is used to hold current
- // flow control information used to control our
- // output. "asof" is kept updated as data is sent,
- // and "room" never goes to zero.
-
- // The incoming ring buffer
- // Unlike the outgoing buffers, this holds raw data, not packets. The two
- // extra bytes are used to hold the byte-padding when there is room for an
- // odd number of bytes before we must wrap.
- //
- UCHAR Ibuf[IBUF_SIZE + 2];
- volatile
- USHORT Ibuf_stuff; // Stuffing index
- volatile
- USHORT Ibuf_strip; // Stripping index
-
- // The outgoing ring-buffer: Holds Data and command packets. N.B., even
- // though these are in the channel structure, the channel is also written
- // here, the easier to send it to the fifo when ready. HOWEVER, individual
- // packets here are NOT padded to even length: the routines for writing
- // blocks to the fifo will pad to even byte counts.
- //
- UCHAR Obuf[OBUF_SIZE+MAX_OBUF_BLOCK+4];
- volatile
- USHORT Obuf_stuff; // Stuffing index
- volatile
- USHORT Obuf_strip; // Stripping index
- int Obuf_char_count;
-
- // The outgoing bypass-command buffer. Unlike earlier manifestations, the
- // flow control packets are sent directly from the structures. As above, the
- // channel number is included in the packet, but they are NOT padded to even
- // size.
- //
- UCHAR Cbuf[CBUF_SIZE+MAX_CBUF_BLOCK+2];
- volatile
- USHORT Cbuf_stuff; // Stuffing index
- volatile
- USHORT Cbuf_strip; // Stripping index
-
- // The temporary buffer for the Linux tty driver PutChar entry.
- //
- UCHAR Pbuf[MAX_OBUF_BLOCK - sizeof (i2DataHeader)];
- volatile
- USHORT Pbuf_stuff; // Stuffing index
-
- // The state of incoming data-set signals
- //
- USHORT dataSetIn; // Bit-mapped according to below. Also indicates
- // whether a break has been detected since last
- // inquiry.
-
- // The state of outcoming data-set signals (as far as we can tell!)
- //
- USHORT dataSetOut; // Bit-mapped according to below.
-
- // Most recent hot-key identifier detected
- //
- USHORT hotKeyIn; // Hot key as sent by the board, HOT_CLEAR indicates
- // no hot key detected since last examined.
-
- // Counter of outstanding requests for bookmarks
- //
- short bookMarks; // Number of outstanding bookmark requests, (+ive
- // whenever a bookmark request if queued up, -ive
- // whenever a bookmark is received).
-
- // Misc options
- //
- USHORT channelOptions; // See below
-
- // To store various incoming special packets
- //
- debugStat channelStatus;
- cntStat channelRcount;
- cntStat channelTcount;
- failStat channelFail;
-
- // To store the last values for line characteristics we sent to the board.
- //
- int speed;
-
- int flush_flags;
-
- void (*trace)(unsigned short,unsigned char,unsigned char,unsigned long,...);
-
- /*
- * Kernel counters for the 4 input interrupts
- */
- struct async_icount icount;
-
- /*
- * Task queues for processing input packets from the board.
- */
- struct work_struct tqueue_input;
- struct work_struct tqueue_status;
- struct work_struct tqueue_hangup;
-
- rwlock_t Ibuf_spinlock;
- rwlock_t Obuf_spinlock;
- rwlock_t Cbuf_spinlock;
- rwlock_t Pbuf_spinlock;
-
-} i2ChanStr, *i2ChanStrPtr;
-
-//---------------------------------------------------
-// Manifests and bit-maps for elements in i2ChanStr
-//---------------------------------------------------
-//
-// flush flags
-//
-#define STARTFL_FLAG 1
-#define STOPFL_FLAG 2
-
-// validity
-//
-#define CHANNEL_MAGIC_BITS 0xff00
-#define CHANNEL_MAGIC 0x5300 // (validity & CHANNEL_MAGIC_BITS) ==
- // CHANNEL_MAGIC --> structure good
-
-#define CHANNEL_SUPPORT 0x0001 // Indicates channel is supported, exists,
- // and passed P.O.S.T.
-
-// channelNeeds
-//
-#define NEED_FLOW 1 // Indicates flow control has been queued
-#define NEED_INLINE 2 // Indicates inline commands or data queued
-#define NEED_BYPASS 4 // Indicates bypass commands queued
-#define NEED_CREDIT 8 // Indicates would be sending except has not sufficient
- // credit. The data is still in the channel structure,
- // but the channel is not enqueued in the board
- // structure again until there is a credit received from
- // the board.
-
-// dataSetIn (Also the bits for i2GetStatus return value)
-//
-#define I2_DCD 1
-#define I2_CTS 2
-#define I2_DSR 4
-#define I2_RI 8
-
-// dataSetOut (Also the bits for i2GetStatus return value)
-//
-#define I2_DTR 1
-#define I2_RTS 2
-
-// i2GetStatus() can optionally clear these bits
-//
-#define I2_BRK 0x10 // A break was detected
-#define I2_PAR 0x20 // A parity error was received
-#define I2_FRA 0x40 // A framing error was received
-#define I2_OVR 0x80 // An overrun error was received
-
-// i2GetStatus() automatically clears these bits */
-//
-#define I2_DDCD 0x100 // DCD changed from its former value
-#define I2_DCTS 0x200 // CTS changed from its former value
-#define I2_DDSR 0x400 // DSR changed from its former value
-#define I2_DRI 0x800 // RI changed from its former value
-
-// hotKeyIn
-//
-#define HOT_CLEAR 0x1322 // Indicates that no hot-key has been detected
-
-// channelOptions
-//
-#define CO_NBLOCK_WRITE 1 // Writes don't block waiting for buffer. (Default
- // is, they do wait.)
-
-// fcmodes
-//
-#define I2_OUTFLOW_CTS 0x0001
-#define I2_INFLOW_RTS 0x0002
-#define I2_INFLOW_DSR 0x0004
-#define I2_INFLOW_DTR 0x0008
-#define I2_OUTFLOW_DSR 0x0010
-#define I2_OUTFLOW_DTR 0x0020
-#define I2_OUTFLOW_XON 0x0040
-#define I2_OUTFLOW_XANY 0x0080
-#define I2_INFLOW_XON 0x0100
-
-#define I2_CRTSCTS (I2_OUTFLOW_CTS|I2_INFLOW_RTS)
-#define I2_IXANY_MODE (I2_OUTFLOW_XON|I2_OUTFLOW_XANY)
-
-//-------------------------------------------
-// Macros used from user level like functions
-//-------------------------------------------
-
-// Macros to set and clear channel options
-//
-#define i2SetOption(pCh, option) pCh->channelOptions |= option
-#define i2ClrOption(pCh, option) pCh->channelOptions &= ~option
-
-// Macro to set fatal-error trap
-//
-#define i2SetFatalTrap(pB, routine) pB->i2eFatalTrap = routine
-
-//--------------------------------------------
-// Declarations and prototypes for i2lib.c
-//--------------------------------------------
-//
-static int i2InitChannels(i2eBordStrPtr, int, i2ChanStrPtr);
-static int i2QueueCommands(int, i2ChanStrPtr, int, int, cmdSyntaxPtr,...);
-static int i2GetStatus(i2ChanStrPtr, int);
-static int i2Input(i2ChanStrPtr);
-static int i2InputFlush(i2ChanStrPtr);
-static int i2Output(i2ChanStrPtr, const char *, int);
-static int i2OutputFree(i2ChanStrPtr);
-static int i2ServiceBoard(i2eBordStrPtr);
-static void i2DrainOutput(i2ChanStrPtr, int);
-
-#ifdef IP2DEBUG_TRACE
-void ip2trace(unsigned short,unsigned char,unsigned char,unsigned long,...);
-#else
-#define ip2trace(a,b,c,d...) do {} while (0)
-#endif
-
-// Argument to i2QueueCommands
-//
-#define C_IN_LINE 1
-#define C_BYPASS 0
-
-#endif // I2LIB_H
diff --git a/drivers/char/ip2/i2pack.h b/drivers/char/ip2/i2pack.h
deleted file mode 100644
index 00342a677c9..00000000000
--- a/drivers/char/ip2/i2pack.h
+++ /dev/null
@@ -1,364 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Definitions of the packets used to transfer data and commands
-* Host <--> Board. Information provided here is only applicable
-* when the standard loadware is active.
-*
-*******************************************************************************/
-#ifndef I2PACK_H
-#define I2PACK_H 1
-
-//-----------------------------------------------
-// Revision History:
-//
-// 10 October 1991 MAG First draft
-// 24 February 1992 MAG Additions for 1.4.x loadware
-// 11 March 1992 MAG New status packets
-//
-//-----------------------------------------------
-
-//------------------------------------------------------------------------------
-// Packet Formats:
-//
-// Information passes between the host and board through the FIFO in packets.
-// These have headers which indicate the type of packet. Because the fifo data
-// path may be 16-bits wide, the protocol is constrained such that each packet
-// is always padded to an even byte count. (The lower-level interface routines
-// -- i2ellis.c -- are designed to do this).
-//
-// The sender (be it host or board) must place some number of complete packets
-// in the fifo, then place a message in the mailbox that packets are available.
-// Placing such a message interrupts the "receiver" (be it board or host), who
-// reads the mailbox message and determines that there are incoming packets
-// ready. Since there are no partial packets, and the length of a packet is
-// given in the header, the remainder of the packet can be read without checking
-// for FIFO empty condition. The process is repeated, packet by packet, until
-// the incoming FIFO is empty. Then the receiver uses the outbound mailbox to
-// signal the board that it has read the data. Only then can the sender place
-// additional data in the fifo.
-//------------------------------------------------------------------------------
-//
-//------------------------------------------------
-// Definition of Packet Header Area
-//------------------------------------------------
-//
-// Caution: these only define header areas. In actual use the data runs off
-// beyond the end of these structures.
-//
-// Since these structures are based on sequences of bytes which go to the board,
-// there cannot be ANY padding between the elements.
-#pragma pack(1)
-
-//----------------------------
-// DATA PACKETS
-//----------------------------
-
-typedef struct _i2DataHeader
-{
- unsigned char i2sChannel; /* The channel number: 0-255 */
-
- // -- Bitfields are allocated LSB first --
-
- // For incoming data, indicates whether this is an ordinary packet or a
- // special one (e.g., hot key hit).
- unsigned i2sId : 2 __attribute__ ((__packed__));
-
- // For tagging data packets. There are flush commands which flush only data
- // packets bearing a particular tag. (used in implementing IntelliView and
- // IntelliPrint). THE TAG VALUE 0xf is RESERVED and must not be used (it has
- // meaning internally to the loadware).
- unsigned i2sTag : 4;
-
- // These two bits determine the type of packet sent/received.
- unsigned i2sType : 2;
-
- // The count of data to follow: does not include the possible additional
- // padding byte. MAXIMUM COUNT: 4094. The top four bits must be 0.
- unsigned short i2sCount;
-
-} i2DataHeader, *i2DataHeaderPtr;
-
-// Structure is immediately followed by the data, proper.
-
-//----------------------------
-// NON-DATA PACKETS
-//----------------------------
-
-typedef struct _i2CmdHeader
-{
- unsigned char i2sChannel; // The channel number: 0-255 (Except where noted
- // - see below
-
- // Number of bytes of commands, status or whatever to follow
- unsigned i2sCount : 6;
-
- // These two bits determine the type of packet sent/received.
- unsigned i2sType : 2;
-
-} i2CmdHeader, *i2CmdHeaderPtr;
-
-// Structure is immediately followed by the applicable data.
-
-//---------------------------------------
-// Flow Control Packets (Outbound)
-//---------------------------------------
-
-// One type of outbound command packet is so important that the entire structure
-// is explicitly defined here. That is the flow-control packet. This is never
-// sent by user-level code (as would be the commands to raise/lower DTR, for
-// example). These are only sent by the library routines in response to reading
-// incoming data into the buffers.
-//
-// The parameters inside the command block are maintained in place, then the
-// block is sent at the appropriate time.
-
-typedef struct _flowIn
-{
- i2CmdHeader hd; // Channel #, count, type (see above)
- unsigned char fcmd; // The flow control command (37)
- unsigned short asof; // As of byte number "asof" (LSB first!) I have room
- // for "room" bytes
- unsigned short room;
-} flowIn, *flowInPtr;
-
-//----------------------------------------
-// (Incoming) Status Packets
-//----------------------------------------
-
-// Incoming packets which are non-data packets are status packets. In this case,
-// the channel number in the header is unimportant. What follows are one or more
-// sub-packets, the first word of which consists of the channel (first or low
-// byte) and the status indicator (second or high byte), followed by possibly
-// more data.
-
-#define STAT_CTS_UP 0 /* CTS raised (no other bytes) */
-#define STAT_CTS_DN 1 /* CTS dropped (no other bytes) */
-#define STAT_DCD_UP 2 /* DCD raised (no other bytes) */
-#define STAT_DCD_DN 3 /* DCD dropped (no other bytes) */
-#define STAT_DSR_UP 4 /* DSR raised (no other bytes) */
-#define STAT_DSR_DN 5 /* DSR dropped (no other bytes) */
-#define STAT_RI_UP 6 /* RI raised (no other bytes) */
-#define STAT_RI_DN 7 /* RI dropped (no other bytes) */
-#define STAT_BRK_DET 8 /* BRK detect (no other bytes) */
-#define STAT_FLOW 9 /* Flow control(-- more: see below */
-#define STAT_BMARK 10 /* Bookmark (no other bytes)
- * Bookmark is sent as a response to
- * a command 60: request for bookmark
- */
-#define STAT_STATUS 11 /* Special packet: see below */
-#define STAT_TXCNT 12 /* Special packet: see below */
-#define STAT_RXCNT 13 /* Special packet: see below */
-#define STAT_BOXIDS 14 /* Special packet: see below */
-#define STAT_HWFAIL 15 /* Special packet: see below */
-
-#define STAT_MOD_ERROR 0xc0
-#define STAT_MODEM 0xc0/* If status & STAT_MOD_ERROR:
- * == STAT_MODEM, then this is a modem
- * status packet, given in response to a
- * CMD_DSS_NOW command.
- * The low nibble has each data signal:
- */
-#define STAT_MOD_DCD 0x8
-#define STAT_MOD_RI 0x4
-#define STAT_MOD_DSR 0x2
-#define STAT_MOD_CTS 0x1
-
-#define STAT_ERROR 0x80/* If status & STAT_MOD_ERROR
- * == STAT_ERROR, then
- * sort of error on the channel.
- * The remaining seven bits indicate
- * what sort of error it is.
- */
-/* The low three bits indicate parity, framing, or overrun errors */
-
-#define STAT_E_PARITY 4 /* Parity error */
-#define STAT_E_FRAMING 2 /* Framing error */
-#define STAT_E_OVERRUN 1 /* (uxart) overrun error */
-
-//---------------------------------------
-// STAT_FLOW packets
-//---------------------------------------
-
-typedef struct _flowStat
-{
- unsigned short asof;
- unsigned short room;
-}flowStat, *flowStatPtr;
-
-// flowStat packets are received from the board to regulate the flow of outgoing
-// data. A local copy of this structure is also kept to track the amount of
-// credits used and credits remaining. "room" is the amount of space in the
-// board's buffers, "as of" having received a certain byte number. When sending
-// data to the fifo, you must calculate how much buffer space your packet will
-// use. Add this to the current "asof" and subtract it from the current "room".
-//
-// The calculation for the board's buffer is given by CREDIT_USAGE, where size
-// is the un-rounded count of either data characters or command characters.
-// (Which is to say, the count rounded up, plus two).
-
-#define CREDIT_USAGE(size) (((size) + 3) & ~1)
-
-//---------------------------------------
-// STAT_STATUS packets
-//---------------------------------------
-
-typedef struct _debugStat
-{
- unsigned char d_ccsr;
- unsigned char d_txinh;
- unsigned char d_stat1;
- unsigned char d_stat2;
-} debugStat, *debugStatPtr;
-
-// debugStat packets are sent to the host in response to a CMD_GET_STATUS
-// command. Each byte is bit-mapped as described below:
-
-#define D_CCSR_XON 2 /* Has received XON, ready to transmit */
-#define D_CCSR_XOFF 4 /* Has received XOFF, not transmitting */
-#define D_CCSR_TXENAB 8 /* Transmitter is enabled */
-#define D_CCSR_RXENAB 0x80 /* Receiver is enabled */
-
-#define D_TXINH_BREAK 1 /* We are sending a break */
-#define D_TXINH_EMPTY 2 /* No data to send */
-#define D_TXINH_SUSP 4 /* Output suspended via command 57 */
-#define D_TXINH_CMD 8 /* We are processing an in-line command */
-#define D_TXINH_LCD 0x10 /* LCD diagnostics are running */
-#define D_TXINH_PAUSE 0x20 /* We are processing a PAUSE command */
-#define D_TXINH_DCD 0x40 /* DCD is low, preventing transmission */
-#define D_TXINH_DSR 0x80 /* DSR is low, preventing transmission */
-
-#define D_STAT1_TXEN 1 /* Transmit INTERRUPTS enabled */
-#define D_STAT1_RXEN 2 /* Receiver INTERRUPTS enabled */
-#define D_STAT1_MDEN 4 /* Modem (data set sigs) interrupts enabled */
-#define D_STAT1_RLM 8 /* Remote loopback mode selected */
-#define D_STAT1_LLM 0x10 /* Local internal loopback mode selected */
-#define D_STAT1_CTS 0x20 /* CTS is low, preventing transmission */
-#define D_STAT1_DTR 0x40 /* DTR is low, to stop remote transmission */
-#define D_STAT1_RTS 0x80 /* RTS is low, to stop remote transmission */
-
-#define D_STAT2_TXMT 1 /* Transmit buffers are all empty */
-#define D_STAT2_RXMT 2 /* Receive buffers are all empty */
-#define D_STAT2_RXINH 4 /* Loadware has tried to inhibit remote
- * transmission: dropped DTR, sent XOFF,
- * whatever...
- */
-#define D_STAT2_RXFLO 8 /* Loadware can send no more data to host
- * until it receives a flow-control packet
- */
-//-----------------------------------------
-// STAT_TXCNT and STAT_RXCNT packets
-//----------------------------------------
-
-typedef struct _cntStat
-{
- unsigned short cs_time; // (Assumes host is little-endian!)
- unsigned short cs_count;
-} cntStat, *cntStatPtr;
-
-// These packets are sent in response to a CMD_GET_RXCNT or a CMD_GET_TXCNT
-// bypass command. cs_time is a running 1 Millisecond counter which acts as a
-// time stamp. cs_count is a running counter of data sent or received from the
-// uxarts. (Not including data added by the chip itself, as with CRLF
-// processing).
-//------------------------------------------
-// STAT_HWFAIL packets
-//------------------------------------------
-
-typedef struct _failStat
-{
- unsigned char fs_written;
- unsigned char fs_read;
- unsigned short fs_address;
-} failStat, *failStatPtr;
-
-// This packet is sent whenever the on-board diagnostic process detects an
-// error. At startup, this process is dormant. The host can wake it up by
-// issuing the bypass command CMD_HW_TEST. The process runs at low priority and
-// performs continuous hardware verification; writing data to certain on-board
-// registers, reading it back, and comparing. If it detects an error, this
-// packet is sent to the host, and the process goes dormant again until the host
-// sends another CMD_HW_TEST. It then continues with the next register to be
-// tested.
-
-//------------------------------------------------------------------------------
-// Macros to deal with the headers more easily! Note that these are defined so
-// they may be used as "left" as well as "right" expressions.
-//------------------------------------------------------------------------------
-
-// Given a pointer to the packet, reference the channel number
-//
-#define CHANNEL_OF(pP) ((i2DataHeaderPtr)(pP))->i2sChannel
-
-// Given a pointer to the packet, reference the Packet type
-//
-#define PTYPE_OF(pP) ((i2DataHeaderPtr)(pP))->i2sType
-
-// The possible types of packets
-//
-#define PTYPE_DATA 0 /* Host <--> Board */
-#define PTYPE_BYPASS 1 /* Host ---> Board */
-#define PTYPE_INLINE 2 /* Host ---> Board */
-#define PTYPE_STATUS 2 /* Host <--- Board */
-
-// Given a pointer to a Data packet, reference the Tag
-//
-#define TAG_OF(pP) ((i2DataHeaderPtr)(pP))->i2sTag
-
-// Given a pointer to a Data packet, reference the data i.d.
-//
-#define ID_OF(pP) ((i2DataHeaderPtr)(pP))->i2sId
-
-// The possible types of ID's
-//
-#define ID_ORDINARY_DATA 0
-#define ID_HOT_KEY 1
-
-// Given a pointer to a Data packet, reference the count
-//
-#define DATA_COUNT_OF(pP) ((i2DataHeaderPtr)(pP))->i2sCount
-
-// Given a pointer to a Data packet, reference the beginning of data
-//
-#define DATA_OF(pP) &((unsigned char *)(pP))[4] // 4 = size of header
-
-// Given a pointer to a Non-Data packet, reference the count
-//
-#define CMD_COUNT_OF(pP) ((i2CmdHeaderPtr)(pP))->i2sCount
-
-#define MAX_CMD_PACK_SIZE 62 // Maximum size of such a count
-
-// Given a pointer to a Non-Data packet, reference the beginning of data
-//
-#define CMD_OF(pP) &((unsigned char *)(pP))[2] // 2 = size of header
-
-//--------------------------------
-// MailBox Bits:
-//--------------------------------
-
-//--------------------------
-// Outgoing (host to board)
-//--------------------------
-//
-#define MB_OUT_STUFFED 0x80 // Host has placed output in fifo
-#define MB_IN_STRIPPED 0x40 // Host has read in all input from fifo
-
-//--------------------------
-// Incoming (board to host)
-//--------------------------
-//
-#define MB_IN_STUFFED 0x80 // Board has placed input in fifo
-#define MB_OUT_STRIPPED 0x40 // Board has read all output from fifo
-#define MB_FATAL_ERROR 0x20 // Board has encountered a fatal error
-
-#pragma pack() // Reset padding to command-line default
-
-#endif // I2PACK_H
-
diff --git a/drivers/char/ip2/ip2.h b/drivers/char/ip2/ip2.h
deleted file mode 100644
index 936ccc53394..00000000000
--- a/drivers/char/ip2/ip2.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Driver constants for configuration and tuning
-*
-* NOTES:
-*
-*******************************************************************************/
-#ifndef IP2_H
-#define IP2_H
-
-#include "ip2types.h"
-#include "i2cmd.h"
-
-/*************/
-/* Constants */
-/*************/
-
-/* Device major numbers - since version 2.0.26. */
-#define IP2_TTY_MAJOR 71
-#define IP2_CALLOUT_MAJOR 72
-#define IP2_IPL_MAJOR 73
-
-/* Board configuration array.
- * This array defines the hardware irq and address for up to IP2_MAX_BOARDS
- * (4 supported per ip2_types.h) ISA board addresses and irqs MUST be specified,
- * PCI and EISA boards are probed for and automagicly configed
- * iff the addresses are set to 1 and 2 respectivily.
- * 0x0100 - 0x03f0 == ISA
- * 1 == PCI
- * 2 == EISA
- * 0 == (skip this board)
- * This array defines the hardware addresses for them. Special
- * addresses are EISA and PCI which go sniffing for boards.
-
- * In a multiboard system the position in the array determines which port
- * devices are assigned to each board:
- * board 0 is assigned ttyF0.. to ttyF63,
- * board 1 is assigned ttyF64 to ttyF127,
- * board 2 is assigned ttyF128 to ttyF191,
- * board 3 is assigned ttyF192 to ttyF255.
- *
- * In PCI and EISA bus systems each range is mapped to card in
- * monotonically increasing slot number order, ISA position is as specified
- * here.
-
- * If the irqs are ALL set to 0,0,0,0 all boards operate in
- * polled mode. For interrupt operation ISA boards require that the IRQ be
- * specified, while PCI and EISA boards any nonzero entry
- * will enable interrupts using the BIOS configured irq for the board.
- * An invalid irq entry will default to polled mode for that card and print
- * console warning.
-
- * When the driver is loaded as a module these setting can be overridden on the
- * modprobe command line or on an option line in /etc/modprobe.conf.
- * If the driver is built-in the configuration must be
- * set here for ISA cards and address set to 1 and 2 for PCI and EISA.
- *
- * Here is an example that shows most if not all possibe combinations:
-
- *static ip2config_t ip2config =
- *{
- * {11,1,0,0}, // irqs
- * { // Addresses
- * 0x0308, // Board 0, ttyF0 - ttyF63// ISA card at io=0x308, irq=11
- * 0x0001, // Board 1, ttyF64 - ttyF127//PCI card configured by BIOS
- * 0x0000, // Board 2, ttyF128 - ttyF191// Slot skipped
- * 0x0002 // Board 3, ttyF192 - ttyF255//EISA card configured by BIOS
- * // but polled not irq driven
- * }
- *};
- */
-
- /* this structure is zeroed out because the suggested method is to configure
- * the driver as a module, set up the parameters with an options line in
- * /etc/modprobe.conf and load with modprobe or kmod, the kernel
- * module loader
- */
-
- /* This structure is NOW always initialized when the driver is initialized.
- * Compiled in defaults MUST be added to the io and irq arrays in
- * ip2.c. Those values are configurable from insmod parameters in the
- * case of modules or from command line parameters (ip2=io,irq) when
- * compiled in.
- */
-
-static ip2config_t ip2config =
-{
- {0,0,0,0}, // irqs
- { // Addresses
- /* Do NOT set compile time defaults HERE! Use the arrays in
- ip2.c! These WILL be overwritten! =mhw= */
- 0x0000, // Board 0, ttyF0 - ttyF63
- 0x0000, // Board 1, ttyF64 - ttyF127
- 0x0000, // Board 2, ttyF128 - ttyF191
- 0x0000 // Board 3, ttyF192 - ttyF255
- }
-};
-
-#endif
diff --git a/drivers/char/ip2/ip2ioctl.h b/drivers/char/ip2/ip2ioctl.h
deleted file mode 100644
index aa0a9da85e0..00000000000
--- a/drivers/char/ip2/ip2ioctl.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Driver constants for configuration and tuning
-*
-* NOTES:
-*
-*******************************************************************************/
-
-#ifndef IP2IOCTL_H
-#define IP2IOCTL_H
-
-//*************
-//* Constants *
-//*************
-
-// High baud rates (if not defined elsewhere.
-#ifndef B153600
-# define B153600 0010005
-#endif
-#ifndef B307200
-# define B307200 0010006
-#endif
-#ifndef B921600
-# define B921600 0010007
-#endif
-
-#endif
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
deleted file mode 100644
index c3a025356b8..00000000000
--- a/drivers/char/ip2/ip2main.c
+++ /dev/null
@@ -1,3234 +0,0 @@
-/*
-*
-* (c) 1999 by Computone Corporation
-*
-********************************************************************************
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Mainline code for the device driver
-*
-*******************************************************************************/
-// ToDo:
-//
-// Fix the immediate DSS_NOW problem.
-// Work over the channel stats return logic in ip2_ipl_ioctl so they
-// make sense for all 256 possible channels and so the user space
-// utilities will compile and work properly.
-//
-// Done:
-//
-// 1.2.14 /\/\|=mhw=|\/\/
-// Added bounds checking to ip2_ipl_ioctl to avoid potential terroristic acts.
-// Changed the definition of ip2trace to be more consistent with kernel style
-// Thanks to Andreas Dilger <adilger@turbolabs.com> for these updates
-//
-// 1.2.13 /\/\|=mhw=|\/\/
-// DEVFS: Renamed ttf/{n} to tts/F{n} and cuf/{n} to cua/F{n} to conform
-// to agreed devfs serial device naming convention.
-//
-// 1.2.12 /\/\|=mhw=|\/\/
-// Cleaned up some remove queue cut and paste errors
-//
-// 1.2.11 /\/\|=mhw=|\/\/
-// Clean up potential NULL pointer dereferences
-// Clean up devfs registration
-// Add kernel command line parsing for io and irq
-// Compile defaults for io and irq are now set in ip2.c not ip2.h!
-// Reworked poll_only hack for explicit parameter setting
-// You must now EXPLICITLY set poll_only = 1 or set all irqs to 0
-// Merged ip2_loadmain and old_ip2_init
-// Converted all instances of interruptible_sleep_on into queue calls
-// Most of these had no race conditions but better to clean up now
-//
-// 1.2.10 /\/\|=mhw=|\/\/
-// Fixed the bottom half interrupt handler and enabled USE_IQI
-// to split the interrupt handler into a formal top-half / bottom-half
-// Fixed timing window on high speed processors that queued messages to
-// the outbound mail fifo faster than the board could handle.
-//
-// 1.2.9
-// Four box EX was barfing on >128k kmalloc, made structure smaller by
-// reducing output buffer size
-//
-// 1.2.8
-// Device file system support (MHW)
-//
-// 1.2.7
-// Fixed
-// Reload of ip2 without unloading ip2main hangs system on cat of /proc/modules
-//
-// 1.2.6
-//Fixes DCD problems
-// DCD was not reported when CLOCAL was set on call to TIOCMGET
-//
-//Enhancements:
-// TIOCMGET requests and waits for status return
-// No DSS interrupts enabled except for DCD when needed
-//
-// For internal use only
-//
-//#define IP2DEBUG_INIT
-//#define IP2DEBUG_OPEN
-//#define IP2DEBUG_WRITE
-//#define IP2DEBUG_READ
-//#define IP2DEBUG_IOCTL
-//#define IP2DEBUG_IPL
-
-//#define IP2DEBUG_TRACE
-//#define DEBUG_FIFO
-
-/************/
-/* Includes */
-/************/
-
-#include <linux/ctype.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/major.h>
-#include <linux/wait.h>
-#include <linux/device.h>
-#include <linux/mutex.h>
-#include <linux/firmware.h>
-#include <linux/platform_device.h>
-
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/termios.h>
-#include <linux/tty_driver.h>
-#include <linux/serial.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-
-#include <linux/cdk.h>
-#include <linux/comstats.h>
-#include <linux/delay.h>
-#include <linux/bitops.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-
-#include <asm/uaccess.h>
-
-#include "ip2types.h"
-#include "ip2trace.h"
-#include "ip2ioctl.h"
-#include "ip2.h"
-#include "i2ellis.h"
-#include "i2lib.h"
-
-/*****************
- * /proc/ip2mem *
- *****************/
-
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-
-static DEFINE_MUTEX(ip2_mutex);
-static const struct file_operations ip2mem_proc_fops;
-static const struct file_operations ip2_proc_fops;
-
-/********************/
-/* Type Definitions */
-/********************/
-
-/*************/
-/* Constants */
-/*************/
-
-/* String constants to identify ourselves */
-static const char pcName[] = "Computone IntelliPort Plus multiport driver";
-static const char pcVersion[] = "1.2.14";
-
-/* String constants for port names */
-static const char pcDriver_name[] = "ip2";
-static const char pcIpl[] = "ip2ipl";
-
-/***********************/
-/* Function Prototypes */
-/***********************/
-
-/* Global module entry functions */
-
-/* Private (static) functions */
-static int ip2_open(PTTY, struct file *);
-static void ip2_close(PTTY, struct file *);
-static int ip2_write(PTTY, const unsigned char *, int);
-static int ip2_putchar(PTTY, unsigned char);
-static void ip2_flush_chars(PTTY);
-static int ip2_write_room(PTTY);
-static int ip2_chars_in_buf(PTTY);
-static void ip2_flush_buffer(PTTY);
-static int ip2_ioctl(PTTY, struct file *, UINT, ULONG);
-static void ip2_set_termios(PTTY, struct ktermios *);
-static void ip2_set_line_discipline(PTTY);
-static void ip2_throttle(PTTY);
-static void ip2_unthrottle(PTTY);
-static void ip2_stop(PTTY);
-static void ip2_start(PTTY);
-static void ip2_hangup(PTTY);
-static int ip2_tiocmget(struct tty_struct *tty, struct file *file);
-static int ip2_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
-static int ip2_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount);
-
-static void set_irq(int, int);
-static void ip2_interrupt_bh(struct work_struct *work);
-static irqreturn_t ip2_interrupt(int irq, void *dev_id);
-static void ip2_poll(unsigned long arg);
-static inline void service_all_boards(void);
-static void do_input(struct work_struct *);
-static void do_status(struct work_struct *);
-
-static void ip2_wait_until_sent(PTTY,int);
-
-static void set_params (i2ChanStrPtr, struct ktermios *);
-static int get_serial_info(i2ChanStrPtr, struct serial_struct __user *);
-static int set_serial_info(i2ChanStrPtr, struct serial_struct __user *);
-
-static ssize_t ip2_ipl_read(struct file *, char __user *, size_t, loff_t *);
-static ssize_t ip2_ipl_write(struct file *, const char __user *, size_t, loff_t *);
-static long ip2_ipl_ioctl(struct file *, UINT, ULONG);
-static int ip2_ipl_open(struct inode *, struct file *);
-
-static int DumpTraceBuffer(char __user *, int);
-static int DumpFifoBuffer( char __user *, int);
-
-static void ip2_init_board(int, const struct firmware *);
-static unsigned short find_eisa_board(int);
-static int ip2_setup(char *str);
-
-/***************/
-/* Static Data */
-/***************/
-
-static struct tty_driver *ip2_tty_driver;
-
-/* Here, then is a table of board pointers which the interrupt routine should
- * scan through to determine who it must service.
- */
-static unsigned short i2nBoards; // Number of boards here
-
-static i2eBordStrPtr i2BoardPtrTable[IP2_MAX_BOARDS];
-
-static i2ChanStrPtr DevTable[IP2_MAX_PORTS];
-//DevTableMem just used to save addresses for kfree
-static void *DevTableMem[IP2_MAX_BOARDS];
-
-/* This is the driver descriptor for the ip2ipl device, which is used to
- * download the loadware to the boards.
- */
-static const struct file_operations ip2_ipl = {
- .owner = THIS_MODULE,
- .read = ip2_ipl_read,
- .write = ip2_ipl_write,
- .unlocked_ioctl = ip2_ipl_ioctl,
- .open = ip2_ipl_open,
- .llseek = noop_llseek,
-};
-
-static unsigned long irq_counter;
-static unsigned long bh_counter;
-
-// Use immediate queue to service interrupts
-#define USE_IQI
-//#define USE_IQ // PCI&2.2 needs work
-
-/* The timer_list entry for our poll routine. If interrupt operation is not
- * selected, the board is serviced periodically to see if anything needs doing.
- */
-#define POLL_TIMEOUT (jiffies + 1)
-static DEFINE_TIMER(PollTimer, ip2_poll, 0, 0);
-
-#ifdef IP2DEBUG_TRACE
-/* Trace (debug) buffer data */
-#define TRACEMAX 1000
-static unsigned long tracebuf[TRACEMAX];
-static int tracestuff;
-static int tracestrip;
-static int tracewrap;
-#endif
-
-/**********/
-/* Macros */
-/**********/
-
-#ifdef IP2DEBUG_OPEN
-#define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] ttyc=%d, modc=%x -> %s\n", \
- tty->name,(pCh->flags), \
- tty->count,/*GET_USE_COUNT(module)*/0,s)
-#else
-#define DBG_CNT(s)
-#endif
-
-/********/
-/* Code */
-/********/
-
-#include "i2ellis.c" /* Extremely low-level interface services */
-#include "i2cmd.c" /* Standard loadware command definitions */
-#include "i2lib.c" /* High level interface services */
-
-/* Configuration area for modprobe */
-
-MODULE_AUTHOR("Doug McNash");
-MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
-MODULE_LICENSE("GPL");
-
-#define MAX_CMD_STR 50
-
-static int poll_only;
-static char cmd[MAX_CMD_STR];
-
-static int Eisa_irq;
-static int Eisa_slot;
-
-static int iindx;
-static char rirqs[IP2_MAX_BOARDS];
-static int Valid_Irqs[] = { 3, 4, 5, 7, 10, 11, 12, 15, 0};
-
-/* Note: Add compiled in defaults to these arrays, not to the structure
- in ip2.h any longer. That structure WILL get overridden
- by these values, or command line values, or insmod values!!! =mhw=
-*/
-static int io[IP2_MAX_BOARDS];
-static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 };
-
-MODULE_AUTHOR("Doug McNash");
-MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
-module_param_array(irq, int, NULL, 0);
-MODULE_PARM_DESC(irq, "Interrupts for IntelliPort Cards");
-module_param_array(io, int, NULL, 0);
-MODULE_PARM_DESC(io, "I/O ports for IntelliPort Cards");
-module_param(poll_only, bool, 0);
-MODULE_PARM_DESC(poll_only, "Do not use card interrupts");
-module_param_string(ip2, cmd, MAX_CMD_STR, 0);
-MODULE_PARM_DESC(ip2, "Contains module parameter passed with 'ip2='");
-
-/* for sysfs class support */
-static struct class *ip2_class;
-
-/* Some functions to keep track of what irqs we have */
-
-static int __init is_valid_irq(int irq)
-{
- int *i = Valid_Irqs;
-
- while (*i != 0 && *i != irq)
- i++;
-
- return *i;
-}
-
-static void __init mark_requested_irq(char irq)
-{
- rirqs[iindx++] = irq;
-}
-
-static int __exit clear_requested_irq(char irq)
-{
- int i;
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- if (rirqs[i] == irq) {
- rirqs[i] = 0;
- return 1;
- }
- }
- return 0;
-}
-
-static int have_requested_irq(char irq)
-{
- /* array init to zeros so 0 irq will not be requested as a side
- * effect */
- int i;
- for (i = 0; i < IP2_MAX_BOARDS; ++i)
- if (rirqs[i] == irq)
- return 1;
- return 0;
-}
-
-/******************************************************************************/
-/* Function: cleanup_module() */
-/* Parameters: None */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* This is a required entry point for an installable module. It has to return */
-/* the device and the driver to a passive state. It should not be necessary */
-/* to reset the board fully, especially as the loadware is downloaded */
-/* externally rather than in the driver. We just want to disable the board */
-/* and clear the loadware to a reset state. To allow this there has to be a */
-/* way to detect whether the board has the loadware running at init time to */
-/* handle subsequent installations of the driver. All memory allocated by the */
-/* driver should be returned since it may be unloaded from memory. */
-/******************************************************************************/
-static void __exit ip2_cleanup_module(void)
-{
- int err;
- int i;
-
- del_timer_sync(&PollTimer);
-
- /* Reset the boards we have. */
- for (i = 0; i < IP2_MAX_BOARDS; i++)
- if (i2BoardPtrTable[i])
- iiReset(i2BoardPtrTable[i]);
-
- /* The following is done at most once, if any boards were installed. */
- for (i = 0; i < IP2_MAX_BOARDS; i++) {
- if (i2BoardPtrTable[i]) {
- iiResetDelay(i2BoardPtrTable[i]);
- /* free io addresses and Tibet */
- release_region(ip2config.addr[i], 8);
- device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i));
- device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR,
- 4 * i + 1));
- }
- /* Disable and remove interrupt handler. */
- if (ip2config.irq[i] > 0 &&
- have_requested_irq(ip2config.irq[i])) {
- free_irq(ip2config.irq[i], (void *)&pcName);
- clear_requested_irq(ip2config.irq[i]);
- }
- }
- class_destroy(ip2_class);
- err = tty_unregister_driver(ip2_tty_driver);
- if (err)
- printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n",
- err);
- put_tty_driver(ip2_tty_driver);
- unregister_chrdev(IP2_IPL_MAJOR, pcIpl);
- remove_proc_entry("ip2mem", NULL);
-
- /* free memory */
- for (i = 0; i < IP2_MAX_BOARDS; i++) {
- void *pB;
-#ifdef CONFIG_PCI
- if (ip2config.type[i] == PCI && ip2config.pci_dev[i]) {
- pci_disable_device(ip2config.pci_dev[i]);
- pci_dev_put(ip2config.pci_dev[i]);
- ip2config.pci_dev[i] = NULL;
- }
-#endif
- pB = i2BoardPtrTable[i];
- if (pB != NULL) {
- kfree(pB);
- i2BoardPtrTable[i] = NULL;
- }
- if (DevTableMem[i] != NULL) {
- kfree(DevTableMem[i]);
- DevTableMem[i] = NULL;
- }
- }
-}
-module_exit(ip2_cleanup_module);
-
-static const struct tty_operations ip2_ops = {
- .open = ip2_open,
- .close = ip2_close,
- .write = ip2_write,
- .put_char = ip2_putchar,
- .flush_chars = ip2_flush_chars,
- .write_room = ip2_write_room,
- .chars_in_buffer = ip2_chars_in_buf,
- .flush_buffer = ip2_flush_buffer,
- .ioctl = ip2_ioctl,
- .throttle = ip2_throttle,
- .unthrottle = ip2_unthrottle,
- .set_termios = ip2_set_termios,
- .set_ldisc = ip2_set_line_discipline,
- .stop = ip2_stop,
- .start = ip2_start,
- .hangup = ip2_hangup,
- .tiocmget = ip2_tiocmget,
- .tiocmset = ip2_tiocmset,
- .get_icount = ip2_get_icount,
- .proc_fops = &ip2_proc_fops,
-};
-
-/******************************************************************************/
-/* Function: ip2_loadmain() */
-/* Parameters: irq, io from command line of insmod et. al. */
-/* pointer to fip firmware and firmware size for boards */
-/* Returns: Success (0) */
-/* */
-/* Description: */
-/* This was the required entry point for all drivers (now in ip2.c) */
-/* It performs all */
-/* initialisation of the devices and driver structures, and registers itself */
-/* with the relevant kernel modules. */
-/******************************************************************************/
-/* IRQF_DISABLED - if set blocks all interrupts else only this line */
-/* IRQF_SHARED - for shared irq PCI or maybe EISA only */
-/* SA_RANDOM - can be source for cert. random number generators */
-#define IP2_SA_FLAGS 0
-
-
-static const struct firmware *ip2_request_firmware(void)
-{
- struct platform_device *pdev;
- const struct firmware *fw;
-
- pdev = platform_device_register_simple("ip2", 0, NULL, 0);
- if (IS_ERR(pdev)) {
- printk(KERN_ERR "Failed to register platform device for ip2\n");
- return NULL;
- }
- if (request_firmware(&fw, "intelliport2.bin", &pdev->dev)) {
- printk(KERN_ERR "Failed to load firmware 'intelliport2.bin'\n");
- fw = NULL;
- }
- platform_device_unregister(pdev);
- return fw;
-}
-
-/******************************************************************************
- * ip2_setup:
- * str: kernel command line string
- *
- * Can't autoprobe the boards so user must specify configuration on
- * kernel command line. Sane people build it modular but the others
- * come here.
- *
- * Alternating pairs of io,irq for up to 4 boards.
- * ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
- *
- * io=0 => No board
- * io=1 => PCI
- * io=2 => EISA
- * else => ISA I/O address
- *
- * irq=0 or invalid for ISA will revert to polling mode
- *
- * Any value = -1, do not overwrite compiled in value.
- *
- ******************************************************************************/
-static int __init ip2_setup(char *str)
-{
- int j, ints[10]; /* 4 boards, 2 parameters + 2 */
- unsigned int i;
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- for (i = 0, j = 1; i < 4; i++) {
- if (j > ints[0])
- break;
- if (ints[j] >= 0)
- io[i] = ints[j];
- j++;
- if (j > ints[0])
- break;
- if (ints[j] >= 0)
- irq[i] = ints[j];
- j++;
- }
- return 1;
-}
-__setup("ip2=", ip2_setup);
-
-static int __init ip2_loadmain(void)
-{
- int i, j, box;
- int err = 0;
- i2eBordStrPtr pB = NULL;
- int rc = -1;
- const struct firmware *fw = NULL;
- char *str;
-
- str = cmd;
-
- if (poll_only) {
- /* Hard lock the interrupts to zero */
- irq[0] = irq[1] = irq[2] = irq[3] = poll_only = 0;
- }
-
- /* Check module parameter with 'ip2=' has been passed or not */
- if (!poll_only && (!strncmp(str, "ip2=", 4)))
- ip2_setup(str);
-
- ip2trace(ITRC_NO_PORT, ITRC_INIT, ITRC_ENTER, 0);
-
- /* process command line arguments to modprobe or
- insmod i.e. iop & irqp */
- /* irqp and iop should ALWAYS be specified now... But we check
- them individually just to be sure, anyways... */
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- ip2config.addr[i] = io[i];
- if (irq[i] >= 0)
- ip2config.irq[i] = irq[i];
- else
- ip2config.irq[i] = 0;
- /* This is a little bit of a hack. If poll_only=1 on command
- line back in ip2.c OR all IRQs on all specified boards are
- explicitly set to 0, then drop to poll only mode and override
- PCI or EISA interrupts. This superceeds the old hack of
- triggering if all interrupts were zero (like da default).
- Still a hack but less prone to random acts of terrorism.
-
- What we really should do, now that the IRQ default is set
- to -1, is to use 0 as a hard coded, do not probe.
-
- /\/\|=mhw=|\/\/
- */
- poll_only |= irq[i];
- }
- poll_only = !poll_only;
-
- /* Announce our presence */
- printk(KERN_INFO "%s version %s\n", pcName, pcVersion);
-
- ip2_tty_driver = alloc_tty_driver(IP2_MAX_PORTS);
- if (!ip2_tty_driver)
- return -ENOMEM;
-
- /* Initialise all the boards we can find (up to the maximum). */
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- switch (ip2config.addr[i]) {
- case 0: /* skip this slot even if card is present */
- break;
- default: /* ISA */
- /* ISA address must be specified */
- if (ip2config.addr[i] < 0x100 ||
- ip2config.addr[i] > 0x3f8) {
- printk(KERN_ERR "IP2: Bad ISA board %d "
- "address %x\n", i,
- ip2config.addr[i]);
- ip2config.addr[i] = 0;
- break;
- }
- ip2config.type[i] = ISA;
-
- /* Check for valid irq argument, set for polling if
- * invalid */
- if (ip2config.irq[i] &&
- !is_valid_irq(ip2config.irq[i])) {
- printk(KERN_ERR "IP2: Bad IRQ(%d) specified\n",
- ip2config.irq[i]);
- /* 0 is polling and is valid in that sense */
- ip2config.irq[i] = 0;
- }
- break;
- case PCI:
-#ifdef CONFIG_PCI
- {
- struct pci_dev *pdev = NULL;
- u32 addr;
- int status;
-
- pdev = pci_get_device(PCI_VENDOR_ID_COMPUTONE,
- PCI_DEVICE_ID_COMPUTONE_IP2EX, pdev);
- if (pdev == NULL) {
- ip2config.addr[i] = 0;
- printk(KERN_ERR "IP2: PCI board %d not "
- "found\n", i);
- break;
- }
-
- if (pci_enable_device(pdev)) {
- dev_err(&pdev->dev, "can't enable device\n");
- goto out;
- }
- ip2config.type[i] = PCI;
- ip2config.pci_dev[i] = pci_dev_get(pdev);
- status = pci_read_config_dword(pdev, PCI_BASE_ADDRESS_1,
- &addr);
- if (addr & 1)
- ip2config.addr[i] = (USHORT)(addr & 0xfffe);
- else
- dev_err(&pdev->dev, "I/O address error\n");
-
- ip2config.irq[i] = pdev->irq;
-out:
- pci_dev_put(pdev);
- }
-#else
- printk(KERN_ERR "IP2: PCI card specified but PCI "
- "support not enabled.\n");
- printk(KERN_ERR "IP2: Recompile kernel with CONFIG_PCI "
- "defined!\n");
-#endif /* CONFIG_PCI */
- break;
- case EISA:
- ip2config.addr[i] = find_eisa_board(Eisa_slot + 1);
- if (ip2config.addr[i] != 0) {
- /* Eisa_irq set as side effect, boo */
- ip2config.type[i] = EISA;
- }
- ip2config.irq[i] = Eisa_irq;
- break;
- } /* switch */
- } /* for */
-
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- if (ip2config.addr[i]) {
- pB = kzalloc(sizeof(i2eBordStr), GFP_KERNEL);
- if (pB) {
- i2BoardPtrTable[i] = pB;
- iiSetAddress(pB, ip2config.addr[i],
- ii2DelayTimer);
- iiReset(pB);
- } else
- printk(KERN_ERR "IP2: board memory allocation "
- "error\n");
- }
- }
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- pB = i2BoardPtrTable[i];
- if (pB != NULL) {
- iiResetDelay(pB);
- break;
- }
- }
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- /* We don't want to request the firmware unless we have at
- least one board */
- if (i2BoardPtrTable[i] != NULL) {
- if (!fw)
- fw = ip2_request_firmware();
- if (!fw)
- break;
- ip2_init_board(i, fw);
- }
- }
- if (fw)
- release_firmware(fw);
-
- ip2trace(ITRC_NO_PORT, ITRC_INIT, 2, 0);
-
- ip2_tty_driver->owner = THIS_MODULE;
- ip2_tty_driver->name = "ttyF";
- ip2_tty_driver->driver_name = pcDriver_name;
- ip2_tty_driver->major = IP2_TTY_MAJOR;
- ip2_tty_driver->minor_start = 0;
- ip2_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
- ip2_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- ip2_tty_driver->init_termios = tty_std_termios;
- ip2_tty_driver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
- ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(ip2_tty_driver, &ip2_ops);
-
- ip2trace(ITRC_NO_PORT, ITRC_INIT, 3, 0);
-
- err = tty_register_driver(ip2_tty_driver);
- if (err) {
- printk(KERN_ERR "IP2: failed to register tty driver\n");
- put_tty_driver(ip2_tty_driver);
- return err; /* leaking resources */
- }
-
- err = register_chrdev(IP2_IPL_MAJOR, pcIpl, &ip2_ipl);
- if (err) {
- printk(KERN_ERR "IP2: failed to register IPL device (%d)\n",
- err);
- } else {
- /* create the sysfs class */
- ip2_class = class_create(THIS_MODULE, "ip2");
- if (IS_ERR(ip2_class)) {
- err = PTR_ERR(ip2_class);
- goto out_chrdev;
- }
- }
- /* Register the read_procmem thing */
- if (!proc_create("ip2mem",0,NULL,&ip2mem_proc_fops)) {
- printk(KERN_ERR "IP2: failed to register read_procmem\n");
- return -EIO; /* leaking resources */
- }
-
- ip2trace(ITRC_NO_PORT, ITRC_INIT, 4, 0);
- /* Register the interrupt handler or poll handler, depending upon the
- * specified interrupt.
- */
-
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- if (ip2config.addr[i] == 0)
- continue;
-
- pB = i2BoardPtrTable[i];
- if (pB != NULL) {
- device_create(ip2_class, NULL,
- MKDEV(IP2_IPL_MAJOR, 4 * i),
- NULL, "ipl%d", i);
- device_create(ip2_class, NULL,
- MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
- NULL, "stat%d", i);
-
- for (box = 0; box < ABS_MAX_BOXES; box++)
- for (j = 0; j < ABS_BIGGEST_BOX; j++)
- if (pB->i2eChannelMap[box] & (1 << j))
- tty_register_device(
- ip2_tty_driver,
- j + ABS_BIGGEST_BOX *
- (box+i*ABS_MAX_BOXES),
- NULL);
- }
-
- if (poll_only) {
- /* Poll only forces driver to only use polling and
- to ignore the probed PCI or EISA interrupts. */
- ip2config.irq[i] = CIR_POLL;
- }
- if (ip2config.irq[i] == CIR_POLL) {
-retry:
- if (!timer_pending(&PollTimer)) {
- mod_timer(&PollTimer, POLL_TIMEOUT);
- printk(KERN_INFO "IP2: polling\n");
- }
- } else {
- if (have_requested_irq(ip2config.irq[i]))
- continue;
- rc = request_irq(ip2config.irq[i], ip2_interrupt,
- IP2_SA_FLAGS |
- (ip2config.type[i] == PCI ? IRQF_SHARED : 0),
- pcName, i2BoardPtrTable[i]);
- if (rc) {
- printk(KERN_ERR "IP2: request_irq failed: "
- "error %d\n", rc);
- ip2config.irq[i] = CIR_POLL;
- printk(KERN_INFO "IP2: Polling %ld/sec.\n",
- (POLL_TIMEOUT - jiffies));
- goto retry;
- }
- mark_requested_irq(ip2config.irq[i]);
- /* Initialise the interrupt handler bottom half
- * (aka slih). */
- }
- }
-
- for (i = 0; i < IP2_MAX_BOARDS; ++i) {
- if (i2BoardPtrTable[i]) {
- /* set and enable board interrupt */
- set_irq(i, ip2config.irq[i]);
- }
- }
-
- ip2trace(ITRC_NO_PORT, ITRC_INIT, ITRC_RETURN, 0);
-
- return 0;
-
-out_chrdev:
- unregister_chrdev(IP2_IPL_MAJOR, "ip2");
- /* unregister and put tty here */
- return err;
-}
-module_init(ip2_loadmain);
-
-/******************************************************************************/
-/* Function: ip2_init_board() */
-/* Parameters: Index of board in configuration structure */
-/* Returns: Success (0) */
-/* */
-/* Description: */
-/* This function initializes the specified board. The loadware is copied to */
-/* the board, the channel structures are initialized, and the board details */
-/* are reported on the console. */
-/******************************************************************************/
-static void
-ip2_init_board(int boardnum, const struct firmware *fw)
-{
- int i;
- int nports = 0, nboxes = 0;
- i2ChanStrPtr pCh;
- i2eBordStrPtr pB = i2BoardPtrTable[boardnum];
-
- if ( !iiInitialize ( pB ) ) {
- printk ( KERN_ERR "IP2: Failed to initialize board at 0x%x, error %d\n",
- pB->i2eBase, pB->i2eError );
- goto err_initialize;
- }
- printk(KERN_INFO "IP2: Board %d: addr=0x%x irq=%d\n", boardnum + 1,
- ip2config.addr[boardnum], ip2config.irq[boardnum] );
-
- if (!request_region( ip2config.addr[boardnum], 8, pcName )) {
- printk(KERN_ERR "IP2: bad addr=0x%x\n", ip2config.addr[boardnum]);
- goto err_initialize;
- }
-
- if ( iiDownloadAll ( pB, (loadHdrStrPtr)fw->data, 1, fw->size )
- != II_DOWN_GOOD ) {
- printk ( KERN_ERR "IP2: failed to download loadware\n" );
- goto err_release_region;
- } else {
- printk ( KERN_INFO "IP2: fv=%d.%d.%d lv=%d.%d.%d\n",
- pB->i2ePom.e.porVersion,
- pB->i2ePom.e.porRevision,
- pB->i2ePom.e.porSubRev, pB->i2eLVersion,
- pB->i2eLRevision, pB->i2eLSub );
- }
-
- switch ( pB->i2ePom.e.porID & ~POR_ID_RESERVED ) {
-
- default:
- printk( KERN_ERR "IP2: Unknown board type, ID = %x\n",
- pB->i2ePom.e.porID );
- nports = 0;
- goto err_release_region;
- break;
-
- case POR_ID_II_4: /* IntelliPort-II, ISA-4 (4xRJ45) */
- printk ( KERN_INFO "IP2: ISA-4\n" );
- nports = 4;
- break;
-
- case POR_ID_II_8: /* IntelliPort-II, 8-port using standard brick. */
- printk ( KERN_INFO "IP2: ISA-8 std\n" );
- nports = 8;
- break;
-
- case POR_ID_II_8R: /* IntelliPort-II, 8-port using RJ11's (no CTS) */
- printk ( KERN_INFO "IP2: ISA-8 RJ11\n" );
- nports = 8;
- break;
-
- case POR_ID_FIIEX: /* IntelliPort IIEX */
- {
- int portnum = IP2_PORTS_PER_BOARD * boardnum;
- int box;
-
- for( box = 0; box < ABS_MAX_BOXES; ++box ) {
- if ( pB->i2eChannelMap[box] != 0 ) {
- ++nboxes;
- }
- for( i = 0; i < ABS_BIGGEST_BOX; ++i ) {
- if ( pB->i2eChannelMap[box] & 1<< i ) {
- ++nports;
- }
- }
- }
- DevTableMem[boardnum] = pCh =
- kmalloc( sizeof(i2ChanStr) * nports, GFP_KERNEL );
- if ( !pCh ) {
- printk ( KERN_ERR "IP2: (i2_init_channel:) Out of memory.\n");
- goto err_release_region;
- }
- if ( !i2InitChannels( pB, nports, pCh ) ) {
- printk(KERN_ERR "IP2: i2InitChannels failed: %d\n",pB->i2eError);
- kfree ( pCh );
- goto err_release_region;
- }
- pB->i2eChannelPtr = &DevTable[portnum];
- pB->i2eChannelCnt = ABS_MOST_PORTS;
-
- for( box = 0; box < ABS_MAX_BOXES; ++box, portnum += ABS_BIGGEST_BOX ) {
- for( i = 0; i < ABS_BIGGEST_BOX; ++i ) {
- if ( pB->i2eChannelMap[box] & (1 << i) ) {
- DevTable[portnum + i] = pCh;
- pCh->port_index = portnum + i;
- pCh++;
- }
- }
- }
- printk(KERN_INFO "IP2: EX box=%d ports=%d %d bit\n",
- nboxes, nports, pB->i2eDataWidth16 ? 16 : 8 );
- }
- goto ex_exit;
- }
- DevTableMem[boardnum] = pCh =
- kmalloc ( sizeof (i2ChanStr) * nports, GFP_KERNEL );
- if ( !pCh ) {
- printk ( KERN_ERR "IP2: (i2_init_channel:) Out of memory.\n");
- goto err_release_region;
- }
- pB->i2eChannelPtr = pCh;
- pB->i2eChannelCnt = nports;
- if ( !i2InitChannels( pB, nports, pCh ) ) {
- printk(KERN_ERR "IP2: i2InitChannels failed: %d\n",pB->i2eError);
- kfree ( pCh );
- goto err_release_region;
- }
- pB->i2eChannelPtr = &DevTable[IP2_PORTS_PER_BOARD * boardnum];
-
- for( i = 0; i < pB->i2eChannelCnt; ++i ) {
- DevTable[IP2_PORTS_PER_BOARD * boardnum + i] = pCh;
- pCh->port_index = (IP2_PORTS_PER_BOARD * boardnum) + i;
- pCh++;
- }
-ex_exit:
- INIT_WORK(&pB->tqueue_interrupt, ip2_interrupt_bh);
- return;
-
-err_release_region:
- release_region(ip2config.addr[boardnum], 8);
-err_initialize:
- kfree ( pB );
- i2BoardPtrTable[boardnum] = NULL;
- return;
-}
-
-/******************************************************************************/
-/* Function: find_eisa_board ( int start_slot ) */
-/* Parameters: First slot to check */
-/* Returns: Address of EISA IntelliPort II controller */
-/* */
-/* Description: */
-/* This function searches for an EISA IntelliPort controller, starting */
-/* from the specified slot number. If the motherboard is not identified as an */
-/* EISA motherboard, or no valid board ID is selected it returns 0. Otherwise */
-/* it returns the base address of the controller. */
-/******************************************************************************/
-static unsigned short
-find_eisa_board( int start_slot )
-{
- int i, j;
- unsigned int idm = 0;
- unsigned int idp = 0;
- unsigned int base = 0;
- unsigned int value;
- int setup_address;
- int setup_irq;
- int ismine = 0;
-
- /*
- * First a check for an EISA motherboard, which we do by comparing the
- * EISA ID registers for the system board and the first couple of slots.
- * No slot ID should match the system board ID, but on an ISA or PCI
- * machine the odds are that an empty bus will return similar values for
- * each slot.
- */
- i = 0x0c80;
- value = (inb(i) << 24) + (inb(i+1) << 16) + (inb(i+2) << 8) + inb(i+3);
- for( i = 0x1c80; i <= 0x4c80; i += 0x1000 ) {
- j = (inb(i)<<24)+(inb(i+1)<<16)+(inb(i+2)<<8)+inb(i+3);
- if ( value == j )
- return 0;
- }
-
- /*
- * OK, so we are inclined to believe that this is an EISA machine. Find
- * an IntelliPort controller.
- */
- for( i = start_slot; i < 16; i++ ) {
- base = i << 12;
- idm = (inb(base + 0xc80) << 8) | (inb(base + 0xc81) & 0xff);
- idp = (inb(base + 0xc82) << 8) | (inb(base + 0xc83) & 0xff);
- ismine = 0;
- if ( idm == 0x0e8e ) {
- if ( idp == 0x0281 || idp == 0x0218 ) {
- ismine = 1;
- } else if ( idp == 0x0282 || idp == 0x0283 ) {
- ismine = 3; /* Can do edge-trigger */
- }
- if ( ismine ) {
- Eisa_slot = i;
- break;
- }
- }
- }
- if ( !ismine )
- return 0;
-
- /* It's some sort of EISA card, but at what address is it configured? */
-
- setup_address = base + 0xc88;
- value = inb(base + 0xc86);
- setup_irq = (value & 8) ? Valid_Irqs[value & 7] : 0;
-
- if ( (ismine & 2) && !(value & 0x10) ) {
- ismine = 1; /* Could be edging, but not */
- }
-
- if ( Eisa_irq == 0 ) {
- Eisa_irq = setup_irq;
- } else if ( Eisa_irq != setup_irq ) {
- printk ( KERN_ERR "IP2: EISA irq mismatch between EISA controllers\n" );
- }
-
-#ifdef IP2DEBUG_INIT
-printk(KERN_DEBUG "Computone EISA board in slot %d, I.D. 0x%x%x, Address 0x%x",
- base >> 12, idm, idp, setup_address);
- if ( Eisa_irq ) {
- printk(KERN_DEBUG ", Interrupt %d %s\n",
- setup_irq, (ismine & 2) ? "(edge)" : "(level)");
- } else {
- printk(KERN_DEBUG ", (polled)\n");
- }
-#endif
- return setup_address;
-}
-
-/******************************************************************************/
-/* Function: set_irq() */
-/* Parameters: index to board in board table */
-/* IRQ to use */
-/* Returns: Success (0) */
-/* */
-/* Description: */
-/******************************************************************************/
-static void
-set_irq( int boardnum, int boardIrq )
-{
- unsigned char tempCommand[16];
- i2eBordStrPtr pB = i2BoardPtrTable[boardnum];
- unsigned long flags;
-
- /*
- * Notify the boards they may generate interrupts. This is done by
- * sending an in-line command to channel 0 on each board. This is why
- * the channels have to be defined already. For each board, if the
- * interrupt has never been defined, we must do so NOW, directly, since
- * board will not send flow control or even give an interrupt until this
- * is done. If polling we must send 0 as the interrupt parameter.
- */
-
- // We will get an interrupt here at the end of this function
-
- iiDisableMailIrq(pB);
-
- /* We build up the entire packet header. */
- CHANNEL_OF(tempCommand) = 0;
- PTYPE_OF(tempCommand) = PTYPE_INLINE;
- CMD_COUNT_OF(tempCommand) = 2;
- (CMD_OF(tempCommand))[0] = CMDVALUE_IRQ;
- (CMD_OF(tempCommand))[1] = boardIrq;
- /*
- * Write to FIFO; don't bother to adjust fifo capacity for this, since
- * board will respond almost immediately after SendMail hit.
- */
- write_lock_irqsave(&pB->write_fifo_spinlock, flags);
- iiWriteBuf(pB, tempCommand, 4);
- write_unlock_irqrestore(&pB->write_fifo_spinlock, flags);
- pB->i2eUsingIrq = boardIrq;
- pB->i2eOutMailWaiting |= MB_OUT_STUFFED;
-
- /* Need to update number of boards before you enable mailbox int */
- ++i2nBoards;
-
- CHANNEL_OF(tempCommand) = 0;
- PTYPE_OF(tempCommand) = PTYPE_BYPASS;
- CMD_COUNT_OF(tempCommand) = 6;
- (CMD_OF(tempCommand))[0] = 88; // SILO
- (CMD_OF(tempCommand))[1] = 64; // chars
- (CMD_OF(tempCommand))[2] = 32; // ms
-
- (CMD_OF(tempCommand))[3] = 28; // MAX_BLOCK
- (CMD_OF(tempCommand))[4] = 64; // chars
-
- (CMD_OF(tempCommand))[5] = 87; // HW_TEST
- write_lock_irqsave(&pB->write_fifo_spinlock, flags);
- iiWriteBuf(pB, tempCommand, 8);
- write_unlock_irqrestore(&pB->write_fifo_spinlock, flags);
-
- CHANNEL_OF(tempCommand) = 0;
- PTYPE_OF(tempCommand) = PTYPE_BYPASS;
- CMD_COUNT_OF(tempCommand) = 1;
- (CMD_OF(tempCommand))[0] = 84; /* get BOX_IDS */
- iiWriteBuf(pB, tempCommand, 3);
-
-#ifdef XXX
- // enable heartbeat for test porpoises
- CHANNEL_OF(tempCommand) = 0;
- PTYPE_OF(tempCommand) = PTYPE_BYPASS;
- CMD_COUNT_OF(tempCommand) = 2;
- (CMD_OF(tempCommand))[0] = 44; /* get ping */
- (CMD_OF(tempCommand))[1] = 200; /* 200 ms */
- write_lock_irqsave(&pB->write_fifo_spinlock, flags);
- iiWriteBuf(pB, tempCommand, 4);
- write_unlock_irqrestore(&pB->write_fifo_spinlock, flags);
-#endif
-
- iiEnableMailIrq(pB);
- iiSendPendingMail(pB);
-}
-
-/******************************************************************************/
-/* Interrupt Handler Section */
-/******************************************************************************/
-
-static inline void
-service_all_boards(void)
-{
- int i;
- i2eBordStrPtr pB;
-
- /* Service every board on the list */
- for( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- pB = i2BoardPtrTable[i];
- if ( pB ) {
- i2ServiceBoard( pB );
- }
- }
-}
-
-
-/******************************************************************************/
-/* Function: ip2_interrupt_bh(work) */
-/* Parameters: work - pointer to the board structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* Service the board in a bottom half interrupt handler and then */
-/* reenable the board's interrupts if it has an IRQ number */
-/* */
-/******************************************************************************/
-static void
-ip2_interrupt_bh(struct work_struct *work)
-{
- i2eBordStrPtr pB = container_of(work, i2eBordStr, tqueue_interrupt);
-// pB better well be set or we have a problem! We can only get
-// here from the IMMEDIATE queue. Here, we process the boards.
-// Checking pB doesn't cost much and it saves us from the sanity checkers.
-
- bh_counter++;
-
- if ( pB ) {
- i2ServiceBoard( pB );
- if( pB->i2eUsingIrq ) {
-// Re-enable his interrupts
- iiEnableMailIrq(pB);
- }
- }
-}
-
-
-/******************************************************************************/
-/* Function: ip2_interrupt(int irq, void *dev_id) */
-/* Parameters: irq - interrupt number */
-/* pointer to optional device ID structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* Our task here is simply to identify each board which needs servicing. */
-/* If we are queuing then, queue it to be serviced, and disable its irq */
-/* mask otherwise process the board directly. */
-/* */
-/* We could queue by IRQ but that just complicates things on both ends */
-/* with very little gain in performance (how many instructions does */
-/* it take to iterate on the immediate queue). */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_irq_work(i2eBordStrPtr pB)
-{
-#ifdef USE_IQI
- if (NO_MAIL_HERE != ( pB->i2eStartMail = iiGetMail(pB))) {
-// Disable his interrupt (will be enabled when serviced)
-// This is mostly to protect from reentrancy.
- iiDisableMailIrq(pB);
-
-// Park the board on the immediate queue for processing.
- schedule_work(&pB->tqueue_interrupt);
-
-// Make sure the immediate queue is flagged to fire.
- }
-#else
-
-// We are using immediate servicing here. This sucks and can
-// cause all sorts of havoc with ppp and others. The failsafe
-// check on iiSendPendingMail could also throw a hairball.
-
- i2ServiceBoard( pB );
-
-#endif /* USE_IQI */
-}
-
-static void
-ip2_polled_interrupt(void)
-{
- int i;
- i2eBordStrPtr pB;
-
- ip2trace(ITRC_NO_PORT, ITRC_INTR, 99, 1, 0);
-
- /* Service just the boards on the list using this irq */
- for( i = 0; i < i2nBoards; ++i ) {
- pB = i2BoardPtrTable[i];
-
-// Only process those boards which match our IRQ.
-// IRQ = 0 for polled boards, we won't poll "IRQ" boards
-
- if (pB && pB->i2eUsingIrq == 0)
- ip2_irq_work(pB);
- }
-
- ++irq_counter;
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, ITRC_RETURN, 0 );
-}
-
-static irqreturn_t
-ip2_interrupt(int irq, void *dev_id)
-{
- i2eBordStrPtr pB = dev_id;
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, 99, 1, pB->i2eUsingIrq );
-
- ip2_irq_work(pB);
-
- ++irq_counter;
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, ITRC_RETURN, 0 );
- return IRQ_HANDLED;
-}
-
-/******************************************************************************/
-/* Function: ip2_poll(unsigned long arg) */
-/* Parameters: ? */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* This function calls the library routine i2ServiceBoard for each board in */
-/* the board table. This is used instead of the interrupt routine when polled */
-/* mode is specified. */
-/******************************************************************************/
-static void
-ip2_poll(unsigned long arg)
-{
- ip2trace (ITRC_NO_PORT, ITRC_INTR, 100, 0 );
-
- // Just polled boards, IRQ = 0 will hit all non-interrupt boards.
- // It will NOT poll boards handled by hard interrupts.
- // The issue of queued BH interrupts is handled in ip2_interrupt().
- ip2_polled_interrupt();
-
- mod_timer(&PollTimer, POLL_TIMEOUT);
-
- ip2trace (ITRC_NO_PORT, ITRC_INTR, ITRC_RETURN, 0 );
-}
-
-static void do_input(struct work_struct *work)
-{
- i2ChanStrPtr pCh = container_of(work, i2ChanStr, tqueue_input);
- unsigned long flags;
-
- ip2trace(CHANN, ITRC_INPUT, 21, 0 );
-
- // Data input
- if ( pCh->pTTY != NULL ) {
- read_lock_irqsave(&pCh->Ibuf_spinlock, flags);
- if (!pCh->throttled && (pCh->Ibuf_stuff != pCh->Ibuf_strip)) {
- read_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- i2Input( pCh );
- } else
- read_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
- } else {
- ip2trace(CHANN, ITRC_INPUT, 22, 0 );
-
- i2InputFlush( pCh );
- }
-}
-
-// code duplicated from n_tty (ldisc)
-static inline void isig(int sig, struct tty_struct *tty, int flush)
-{
- /* FIXME: This is completely bogus */
- if (tty->pgrp)
- kill_pgrp(tty->pgrp, sig, 1);
- if (flush || !L_NOFLSH(tty)) {
- if ( tty->ldisc->ops->flush_buffer )
- tty->ldisc->ops->flush_buffer(tty);
- i2InputFlush( tty->driver_data );
- }
-}
-
-static void do_status(struct work_struct *work)
-{
- i2ChanStrPtr pCh = container_of(work, i2ChanStr, tqueue_status);
- int status;
-
- status = i2GetStatus( pCh, (I2_BRK|I2_PAR|I2_FRA|I2_OVR) );
-
- ip2trace (CHANN, ITRC_STATUS, 21, 1, status );
-
- if (pCh->pTTY && (status & (I2_BRK|I2_PAR|I2_FRA|I2_OVR)) ) {
- if ( (status & I2_BRK) ) {
- // code duplicated from n_tty (ldisc)
- if (I_IGNBRK(pCh->pTTY))
- goto skip_this;
- if (I_BRKINT(pCh->pTTY)) {
- isig(SIGINT, pCh->pTTY, 1);
- goto skip_this;
- }
- wake_up_interruptible(&pCh->pTTY->read_wait);
- }
-#ifdef NEVER_HAPPENS_AS_SETUP_XXX
- // and can't work because we don't know the_char
- // as the_char is reported on a separate path
- // The intelligent board does this stuff as setup
- {
- char brkf = TTY_NORMAL;
- unsigned char brkc = '\0';
- unsigned char tmp;
- if ( (status & I2_BRK) ) {
- brkf = TTY_BREAK;
- brkc = '\0';
- }
- else if (status & I2_PAR) {
- brkf = TTY_PARITY;
- brkc = the_char;
- } else if (status & I2_FRA) {
- brkf = TTY_FRAME;
- brkc = the_char;
- } else if (status & I2_OVR) {
- brkf = TTY_OVERRUN;
- brkc = the_char;
- }
- tmp = pCh->pTTY->real_raw;
- pCh->pTTY->real_raw = 0;
- pCh->pTTY->ldisc->ops.receive_buf( pCh->pTTY, &brkc, &brkf, 1 );
- pCh->pTTY->real_raw = tmp;
- }
-#endif /* NEVER_HAPPENS_AS_SETUP_XXX */
- }
-skip_this:
-
- if ( status & (I2_DDCD | I2_DDSR | I2_DCTS | I2_DRI) ) {
- wake_up_interruptible(&pCh->delta_msr_wait);
-
- if ( (pCh->flags & ASYNC_CHECK_CD) && (status & I2_DDCD) ) {
- if ( status & I2_DCD ) {
- if ( pCh->wopen ) {
- wake_up_interruptible ( &pCh->open_wait );
- }
- } else {
- if (pCh->pTTY && (!(pCh->pTTY->termios->c_cflag & CLOCAL)) ) {
- tty_hangup( pCh->pTTY );
- }
- }
- }
- }
-
- ip2trace (CHANN, ITRC_STATUS, 26, 0 );
-}
-
-/******************************************************************************/
-/* Device Open/Close/Ioctl Entry Point Section */
-/******************************************************************************/
-
-/******************************************************************************/
-/* Function: open_sanity_check() */
-/* Parameters: Pointer to tty structure */
-/* Pointer to file structure */
-/* Returns: Success or failure */
-/* */
-/* Description: */
-/* Verifies the structure magic numbers and cross links. */
-/******************************************************************************/
-#ifdef IP2DEBUG_OPEN
-static void
-open_sanity_check( i2ChanStrPtr pCh, i2eBordStrPtr pBrd )
-{
- if ( pBrd->i2eValid != I2E_MAGIC ) {
- printk(KERN_ERR "IP2: invalid board structure\n" );
- } else if ( pBrd != pCh->pMyBord ) {
- printk(KERN_ERR "IP2: board structure pointer mismatch (%p)\n",
- pCh->pMyBord );
- } else if ( pBrd->i2eChannelCnt < pCh->port_index ) {
- printk(KERN_ERR "IP2: bad device index (%d)\n", pCh->port_index );
- } else if (&((i2ChanStrPtr)pBrd->i2eChannelPtr)[pCh->port_index] != pCh) {
- } else {
- printk(KERN_INFO "IP2: all pointers check out!\n" );
- }
-}
-#endif
-
-
-/******************************************************************************/
-/* Function: ip2_open() */
-/* Parameters: Pointer to tty structure */
-/* Pointer to file structure */
-/* Returns: Success or failure */
-/* */
-/* Description: (MANDATORY) */
-/* A successful device open has to run a gauntlet of checks before it */
-/* completes. After some sanity checking and pointer setup, the function */
-/* blocks until all conditions are satisfied. It then initialises the port to */
-/* the default characteristics and returns. */
-/******************************************************************************/
-static int
-ip2_open( PTTY tty, struct file *pFile )
-{
- wait_queue_t wait;
- int rc = 0;
- int do_clocal = 0;
- i2ChanStrPtr pCh = DevTable[tty->index];
-
- ip2trace (tty->index, ITRC_OPEN, ITRC_ENTER, 0 );
-
- if ( pCh == NULL ) {
- return -ENODEV;
- }
- /* Setup pointer links in device and tty structures */
- pCh->pTTY = tty;
- tty->driver_data = pCh;
-
-#ifdef IP2DEBUG_OPEN
- printk(KERN_DEBUG \
- "IP2:open(tty=%p,pFile=%p):dev=%s,ch=%d,idx=%d\n",
- tty, pFile, tty->name, pCh->infl.hd.i2sChannel, pCh->port_index);
- open_sanity_check ( pCh, pCh->pMyBord );
-#endif
-
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 3, CMD_DTRUP,CMD_RTSUP,CMD_DCD_REP);
- pCh->dataSetOut |= (I2_DTR | I2_RTS);
- serviceOutgoingFifo( pCh->pMyBord );
-
- /* Block here until the port is ready (per serial and istallion) */
- /*
- * 1. If the port is in the middle of closing wait for the completion
- * and then return the appropriate error.
- */
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&pCh->close_wait, &wait);
- set_current_state( TASK_INTERRUPTIBLE );
-
- if ( tty_hung_up_p(pFile) || ( pCh->flags & ASYNC_CLOSING )) {
- if ( pCh->flags & ASYNC_CLOSING ) {
- tty_unlock();
- schedule();
- tty_lock();
- }
- if ( tty_hung_up_p(pFile) ) {
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&pCh->close_wait, &wait);
- return( pCh->flags & ASYNC_HUP_NOTIFY ) ? -EAGAIN : -ERESTARTSYS;
- }
- }
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&pCh->close_wait, &wait);
-
- /*
- * 3. Handle a non-blocking open of a normal port.
- */
- if ( (pFile->f_flags & O_NONBLOCK) || (tty->flags & (1<<TTY_IO_ERROR) )) {
- pCh->flags |= ASYNC_NORMAL_ACTIVE;
- goto noblock;
- }
- /*
- * 4. Now loop waiting for the port to be free and carrier present
- * (if required).
- */
- if ( tty->termios->c_cflag & CLOCAL )
- do_clocal = 1;
-
-#ifdef IP2DEBUG_OPEN
- printk(KERN_DEBUG "OpenBlock: do_clocal = %d\n", do_clocal);
-#endif
-
- ++pCh->wopen;
-
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&pCh->open_wait, &wait);
-
- for(;;) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 2, CMD_DTRUP, CMD_RTSUP);
- pCh->dataSetOut |= (I2_DTR | I2_RTS);
- set_current_state( TASK_INTERRUPTIBLE );
- serviceOutgoingFifo( pCh->pMyBord );
- if ( tty_hung_up_p(pFile) ) {
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&pCh->open_wait, &wait);
- return ( pCh->flags & ASYNC_HUP_NOTIFY ) ? -EBUSY : -ERESTARTSYS;
- }
- if (!(pCh->flags & ASYNC_CLOSING) &&
- (do_clocal || (pCh->dataSetIn & I2_DCD) )) {
- rc = 0;
- break;
- }
-
-#ifdef IP2DEBUG_OPEN
- printk(KERN_DEBUG "ASYNC_CLOSING = %s\n",
- (pCh->flags & ASYNC_CLOSING)?"True":"False");
- printk(KERN_DEBUG "OpenBlock: waiting for CD or signal\n");
-#endif
- ip2trace (CHANN, ITRC_OPEN, 3, 2, 0,
- (pCh->flags & ASYNC_CLOSING) );
- /* check for signal */
- if (signal_pending(current)) {
- rc = (( pCh->flags & ASYNC_HUP_NOTIFY ) ? -EAGAIN : -ERESTARTSYS);
- break;
- }
- tty_unlock();
- schedule();
- tty_lock();
- }
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&pCh->open_wait, &wait);
-
- --pCh->wopen; //why count?
-
- ip2trace (CHANN, ITRC_OPEN, 4, 0 );
-
- if (rc != 0 ) {
- return rc;
- }
- pCh->flags |= ASYNC_NORMAL_ACTIVE;
-
-noblock:
-
- /* first open - Assign termios structure to port */
- if ( tty->count == 1 ) {
- i2QueueCommands(PTYPE_INLINE, pCh, 0, 2, CMD_CTSFL_DSAB, CMD_RTSFL_DSAB);
- /* Now we must send the termios settings to the loadware */
- set_params( pCh, NULL );
- }
-
- /*
- * Now set any i2lib options. These may go away if the i2lib code ends
- * up rolled into the mainline.
- */
- pCh->channelOptions |= CO_NBLOCK_WRITE;
-
-#ifdef IP2DEBUG_OPEN
- printk (KERN_DEBUG "IP2: open completed\n" );
-#endif
- serviceOutgoingFifo( pCh->pMyBord );
-
- ip2trace (CHANN, ITRC_OPEN, ITRC_RETURN, 0 );
-
- return 0;
-}
-
-/******************************************************************************/
-/* Function: ip2_close() */
-/* Parameters: Pointer to tty structure */
-/* Pointer to file structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_close( PTTY tty, struct file *pFile )
-{
- i2ChanStrPtr pCh = tty->driver_data;
-
- if ( !pCh ) {
- return;
- }
-
- ip2trace (CHANN, ITRC_CLOSE, ITRC_ENTER, 0 );
-
-#ifdef IP2DEBUG_OPEN
- printk(KERN_DEBUG "IP2:close %s:\n",tty->name);
-#endif
-
- if ( tty_hung_up_p ( pFile ) ) {
-
- ip2trace (CHANN, ITRC_CLOSE, 2, 1, 2 );
-
- return;
- }
- if ( tty->count > 1 ) { /* not the last close */
-
- ip2trace (CHANN, ITRC_CLOSE, 2, 1, 3 );
-
- return;
- }
- pCh->flags |= ASYNC_CLOSING; // last close actually
-
- tty->closing = 1;
-
- if (pCh->ClosingWaitTime != ASYNC_CLOSING_WAIT_NONE) {
- /*
- * Before we drop DTR, make sure the transmitter has completely drained.
- * This uses an timeout, after which the close
- * completes.
- */
- ip2_wait_until_sent(tty, pCh->ClosingWaitTime );
- }
- /*
- * At this point we stop accepting input. Here we flush the channel
- * input buffer which will allow the board to send up more data. Any
- * additional input is tossed at interrupt/poll time.
- */
- i2InputFlush( pCh );
-
- /* disable DSS reporting */
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 4,
- CMD_DCD_NREP, CMD_CTS_NREP, CMD_DSR_NREP, CMD_RI_NREP);
- if (tty->termios->c_cflag & HUPCL) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 2, CMD_RTSDN, CMD_DTRDN);
- pCh->dataSetOut &= ~(I2_DTR | I2_RTS);
- i2QueueCommands( PTYPE_INLINE, pCh, 100, 1, CMD_PAUSE(25));
- }
-
- serviceOutgoingFifo ( pCh->pMyBord );
-
- tty_ldisc_flush(tty);
- tty_driver_flush_buffer(tty);
- tty->closing = 0;
-
- pCh->pTTY = NULL;
-
- if (pCh->wopen) {
- if (pCh->ClosingDelay) {
- msleep_interruptible(jiffies_to_msecs(pCh->ClosingDelay));
- }
- wake_up_interruptible(&pCh->open_wait);
- }
-
- pCh->flags &=~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&pCh->close_wait);
-
-#ifdef IP2DEBUG_OPEN
- DBG_CNT("ip2_close: after wakeups--");
-#endif
-
-
- ip2trace (CHANN, ITRC_CLOSE, ITRC_RETURN, 1, 1 );
-
- return;
-}
-
-/******************************************************************************/
-/* Function: ip2_hangup() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_hangup ( PTTY tty )
-{
- i2ChanStrPtr pCh = tty->driver_data;
-
- if( !pCh ) {
- return;
- }
-
- ip2trace (CHANN, ITRC_HANGUP, ITRC_ENTER, 0 );
-
- ip2_flush_buffer(tty);
-
- /* disable DSS reporting */
-
- i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_DCD_NREP);
- i2QueueCommands(PTYPE_INLINE, pCh, 0, 2, CMD_CTSFL_DSAB, CMD_RTSFL_DSAB);
- if ( (tty->termios->c_cflag & HUPCL) ) {
- i2QueueCommands(PTYPE_BYPASS, pCh, 0, 2, CMD_RTSDN, CMD_DTRDN);
- pCh->dataSetOut &= ~(I2_DTR | I2_RTS);
- i2QueueCommands( PTYPE_INLINE, pCh, 100, 1, CMD_PAUSE(25));
- }
- i2QueueCommands(PTYPE_INLINE, pCh, 1, 3,
- CMD_CTS_NREP, CMD_DSR_NREP, CMD_RI_NREP);
- serviceOutgoingFifo ( pCh->pMyBord );
-
- wake_up_interruptible ( &pCh->delta_msr_wait );
-
- pCh->flags &= ~ASYNC_NORMAL_ACTIVE;
- pCh->pTTY = NULL;
- wake_up_interruptible ( &pCh->open_wait );
-
- ip2trace (CHANN, ITRC_HANGUP, ITRC_RETURN, 0 );
-}
-
-/******************************************************************************/
-/******************************************************************************/
-/* Device Output Section */
-/******************************************************************************/
-/******************************************************************************/
-
-/******************************************************************************/
-/* Function: ip2_write() */
-/* Parameters: Pointer to tty structure */
-/* Flag denoting data is in user (1) or kernel (0) space */
-/* Pointer to data */
-/* Number of bytes to write */
-/* Returns: Number of bytes actually written */
-/* */
-/* Description: (MANDATORY) */
-/* */
-/* */
-/******************************************************************************/
-static int
-ip2_write( PTTY tty, const unsigned char *pData, int count)
-{
- i2ChanStrPtr pCh = tty->driver_data;
- int bytesSent = 0;
- unsigned long flags;
-
- ip2trace (CHANN, ITRC_WRITE, ITRC_ENTER, 2, count, -1 );
-
- /* Flush out any buffered data left over from ip2_putchar() calls. */
- ip2_flush_chars( tty );
-
- /* This is the actual move bit. Make sure it does what we need!!!!! */
- write_lock_irqsave(&pCh->Pbuf_spinlock, flags);
- bytesSent = i2Output( pCh, pData, count);
- write_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
-
- ip2trace (CHANN, ITRC_WRITE, ITRC_RETURN, 1, bytesSent );
-
- return bytesSent > 0 ? bytesSent : 0;
-}
-
-/******************************************************************************/
-/* Function: ip2_putchar() */
-/* Parameters: Pointer to tty structure */
-/* Character to write */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static int
-ip2_putchar( PTTY tty, unsigned char ch )
-{
- i2ChanStrPtr pCh = tty->driver_data;
- unsigned long flags;
-
-// ip2trace (CHANN, ITRC_PUTC, ITRC_ENTER, 1, ch );
-
- write_lock_irqsave(&pCh->Pbuf_spinlock, flags);
- pCh->Pbuf[pCh->Pbuf_stuff++] = ch;
- if ( pCh->Pbuf_stuff == sizeof pCh->Pbuf ) {
- write_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
- ip2_flush_chars( tty );
- } else
- write_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
- return 1;
-
-// ip2trace (CHANN, ITRC_PUTC, ITRC_RETURN, 1, ch );
-}
-
-/******************************************************************************/
-/* Function: ip2_flush_chars() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/******************************************************************************/
-static void
-ip2_flush_chars( PTTY tty )
-{
- int strip;
- i2ChanStrPtr pCh = tty->driver_data;
- unsigned long flags;
-
- write_lock_irqsave(&pCh->Pbuf_spinlock, flags);
- if ( pCh->Pbuf_stuff ) {
-
-// ip2trace (CHANN, ITRC_PUTC, 10, 1, strip );
-
- //
- // We may need to restart i2Output if it does not fullfill this request
- //
- strip = i2Output( pCh, pCh->Pbuf, pCh->Pbuf_stuff);
- if ( strip != pCh->Pbuf_stuff ) {
- memmove( pCh->Pbuf, &pCh->Pbuf[strip], pCh->Pbuf_stuff - strip );
- }
- pCh->Pbuf_stuff -= strip;
- }
- write_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
-}
-
-/******************************************************************************/
-/* Function: ip2_write_room() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Number of bytes that the driver can accept */
-/* */
-/* Description: */
-/* */
-/******************************************************************************/
-static int
-ip2_write_room ( PTTY tty )
-{
- int bytesFree;
- i2ChanStrPtr pCh = tty->driver_data;
- unsigned long flags;
-
- read_lock_irqsave(&pCh->Pbuf_spinlock, flags);
- bytesFree = i2OutputFree( pCh ) - pCh->Pbuf_stuff;
- read_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
-
- ip2trace (CHANN, ITRC_WRITE, 11, 1, bytesFree );
-
- return ((bytesFree > 0) ? bytesFree : 0);
-}
-
-/******************************************************************************/
-/* Function: ip2_chars_in_buf() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Number of bytes queued for transmission */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static int
-ip2_chars_in_buf ( PTTY tty )
-{
- i2ChanStrPtr pCh = tty->driver_data;
- int rc;
- unsigned long flags;
-
- ip2trace (CHANN, ITRC_WRITE, 12, 1, pCh->Obuf_char_count + pCh->Pbuf_stuff );
-
-#ifdef IP2DEBUG_WRITE
- printk (KERN_DEBUG "IP2: chars in buffer = %d (%d,%d)\n",
- pCh->Obuf_char_count + pCh->Pbuf_stuff,
- pCh->Obuf_char_count, pCh->Pbuf_stuff );
-#endif
- read_lock_irqsave(&pCh->Obuf_spinlock, flags);
- rc = pCh->Obuf_char_count;
- read_unlock_irqrestore(&pCh->Obuf_spinlock, flags);
- read_lock_irqsave(&pCh->Pbuf_spinlock, flags);
- rc += pCh->Pbuf_stuff;
- read_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
- return rc;
-}
-
-/******************************************************************************/
-/* Function: ip2_flush_buffer() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_flush_buffer( PTTY tty )
-{
- i2ChanStrPtr pCh = tty->driver_data;
- unsigned long flags;
-
- ip2trace (CHANN, ITRC_FLUSH, ITRC_ENTER, 0 );
-
-#ifdef IP2DEBUG_WRITE
- printk (KERN_DEBUG "IP2: flush buffer\n" );
-#endif
- write_lock_irqsave(&pCh->Pbuf_spinlock, flags);
- pCh->Pbuf_stuff = 0;
- write_unlock_irqrestore(&pCh->Pbuf_spinlock, flags);
- i2FlushOutput( pCh );
- ip2_owake(tty);
-
- ip2trace (CHANN, ITRC_FLUSH, ITRC_RETURN, 0 );
-
-}
-
-/******************************************************************************/
-/* Function: ip2_wait_until_sent() */
-/* Parameters: Pointer to tty structure */
-/* Timeout for wait. */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* This function is used in place of the normal tty_wait_until_sent, which */
-/* only waits for the driver buffers to be empty (or rather, those buffers */
-/* reported by chars_in_buffer) which doesn't work for IP2 due to the */
-/* indeterminate number of bytes buffered on the board. */
-/******************************************************************************/
-static void
-ip2_wait_until_sent ( PTTY tty, int timeout )
-{
- int i = jiffies;
- i2ChanStrPtr pCh = tty->driver_data;
-
- tty_wait_until_sent(tty, timeout );
- if ( (i = timeout - (jiffies -i)) > 0)
- i2DrainOutput( pCh, i );
-}
-
-/******************************************************************************/
-/******************************************************************************/
-/* Device Input Section */
-/******************************************************************************/
-/******************************************************************************/
-
-/******************************************************************************/
-/* Function: ip2_throttle() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_throttle ( PTTY tty )
-{
- i2ChanStrPtr pCh = tty->driver_data;
-
-#ifdef IP2DEBUG_READ
- printk (KERN_DEBUG "IP2: throttle\n" );
-#endif
- /*
- * Signal the poll/interrupt handlers not to forward incoming data to
- * the line discipline. This will cause the buffers to fill up in the
- * library and thus cause the library routines to send the flow control
- * stuff.
- */
- pCh->throttled = 1;
-}
-
-/******************************************************************************/
-/* Function: ip2_unthrottle() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_unthrottle ( PTTY tty )
-{
- i2ChanStrPtr pCh = tty->driver_data;
- unsigned long flags;
-
-#ifdef IP2DEBUG_READ
- printk (KERN_DEBUG "IP2: unthrottle\n" );
-#endif
-
- /* Pass incoming data up to the line discipline again. */
- pCh->throttled = 0;
- i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_RESUME);
- serviceOutgoingFifo( pCh->pMyBord );
- read_lock_irqsave(&pCh->Ibuf_spinlock, flags);
- if ( pCh->Ibuf_stuff != pCh->Ibuf_strip ) {
- read_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-#ifdef IP2DEBUG_READ
- printk (KERN_DEBUG "i2Input called from unthrottle\n" );
-#endif
- i2Input( pCh );
- } else
- read_unlock_irqrestore(&pCh->Ibuf_spinlock, flags);
-}
-
-static void
-ip2_start ( PTTY tty )
-{
- i2ChanStrPtr pCh = DevTable[tty->index];
-
- i2QueueCommands(PTYPE_BYPASS, pCh, 0, 1, CMD_RESUME);
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_UNSUSPEND);
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_RESUME);
-#ifdef IP2DEBUG_WRITE
- printk (KERN_DEBUG "IP2: start tx\n" );
-#endif
-}
-
-static void
-ip2_stop ( PTTY tty )
-{
- i2ChanStrPtr pCh = DevTable[tty->index];
-
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_SUSPEND);
-#ifdef IP2DEBUG_WRITE
- printk (KERN_DEBUG "IP2: stop tx\n" );
-#endif
-}
-
-/******************************************************************************/
-/* Device Ioctl Section */
-/******************************************************************************/
-
-static int ip2_tiocmget(struct tty_struct *tty, struct file *file)
-{
- i2ChanStrPtr pCh = DevTable[tty->index];
-#ifdef ENABLE_DSSNOW
- wait_queue_t wait;
-#endif
-
- if (pCh == NULL)
- return -ENODEV;
-
-/*
- FIXME - the following code is causing a NULL pointer dereference in
- 2.3.51 in an interrupt handler. It's suppose to prompt the board
- to return the DSS signal status immediately. Why doesn't it do
- the same thing in 2.2.14?
-*/
-
-/* This thing is still busted in the 1.2.12 driver on 2.4.x
- and even hoses the serial console so the oops can be trapped.
- /\/\|=mhw=|\/\/ */
-
-#ifdef ENABLE_DSSNOW
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_DSS_NOW);
-
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&pCh->dss_now_wait, &wait);
- set_current_state( TASK_INTERRUPTIBLE );
-
- serviceOutgoingFifo( pCh->pMyBord );
-
- schedule();
-
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&pCh->dss_now_wait, &wait);
-
- if (signal_pending(current)) {
- return -EINTR;
- }
-#endif
- return ((pCh->dataSetOut & I2_RTS) ? TIOCM_RTS : 0)
- | ((pCh->dataSetOut & I2_DTR) ? TIOCM_DTR : 0)
- | ((pCh->dataSetIn & I2_DCD) ? TIOCM_CAR : 0)
- | ((pCh->dataSetIn & I2_RI) ? TIOCM_RNG : 0)
- | ((pCh->dataSetIn & I2_DSR) ? TIOCM_DSR : 0)
- | ((pCh->dataSetIn & I2_CTS) ? TIOCM_CTS : 0);
-}
-
-static int ip2_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- i2ChanStrPtr pCh = DevTable[tty->index];
-
- if (pCh == NULL)
- return -ENODEV;
-
- if (set & TIOCM_RTS) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_RTSUP);
- pCh->dataSetOut |= I2_RTS;
- }
- if (set & TIOCM_DTR) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_DTRUP);
- pCh->dataSetOut |= I2_DTR;
- }
-
- if (clear & TIOCM_RTS) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_RTSDN);
- pCh->dataSetOut &= ~I2_RTS;
- }
- if (clear & TIOCM_DTR) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_DTRDN);
- pCh->dataSetOut &= ~I2_DTR;
- }
- serviceOutgoingFifo( pCh->pMyBord );
- return 0;
-}
-
-/******************************************************************************/
-/* Function: ip2_ioctl() */
-/* Parameters: Pointer to tty structure */
-/* Pointer to file structure */
-/* Command */
-/* Argument */
-/* Returns: Success or failure */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static int
-ip2_ioctl ( PTTY tty, struct file *pFile, UINT cmd, ULONG arg )
-{
- wait_queue_t wait;
- i2ChanStrPtr pCh = DevTable[tty->index];
- i2eBordStrPtr pB;
- struct async_icount cprev, cnow; /* kernel counter temps */
- int rc = 0;
- unsigned long flags;
- void __user *argp = (void __user *)arg;
-
- if ( pCh == NULL )
- return -ENODEV;
-
- pB = pCh->pMyBord;
-
- ip2trace (CHANN, ITRC_IOCTL, ITRC_ENTER, 2, cmd, arg );
-
-#ifdef IP2DEBUG_IOCTL
- printk(KERN_DEBUG "IP2: ioctl cmd (%x), arg (%lx)\n", cmd, arg );
-#endif
-
- switch(cmd) {
- case TIOCGSERIAL:
-
- ip2trace (CHANN, ITRC_IOCTL, 2, 1, rc );
-
- rc = get_serial_info(pCh, argp);
- if (rc)
- return rc;
- break;
-
- case TIOCSSERIAL:
-
- ip2trace (CHANN, ITRC_IOCTL, 3, 1, rc );
-
- rc = set_serial_info(pCh, argp);
- if (rc)
- return rc;
- break;
-
- case TCXONC:
- rc = tty_check_change(tty);
- if (rc)
- return rc;
- switch (arg) {
- case TCOOFF:
- //return -ENOIOCTLCMD;
- break;
- case TCOON:
- //return -ENOIOCTLCMD;
- break;
- case TCIOFF:
- if (STOP_CHAR(tty) != __DISABLED_CHAR) {
- i2QueueCommands( PTYPE_BYPASS, pCh, 100, 1,
- CMD_XMIT_NOW(STOP_CHAR(tty)));
- }
- break;
- case TCION:
- if (START_CHAR(tty) != __DISABLED_CHAR) {
- i2QueueCommands( PTYPE_BYPASS, pCh, 100, 1,
- CMD_XMIT_NOW(START_CHAR(tty)));
- }
- break;
- default:
- return -EINVAL;
- }
- return 0;
-
- case TCSBRK: /* SVID version: non-zero arg --> no break */
- rc = tty_check_change(tty);
-
- ip2trace (CHANN, ITRC_IOCTL, 4, 1, rc );
-
- if (!rc) {
- ip2_wait_until_sent(tty,0);
- if (!arg) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_SEND_BRK(250));
- serviceOutgoingFifo( pCh->pMyBord );
- }
- }
- break;
-
- case TCSBRKP: /* support for POSIX tcsendbreak() */
- rc = tty_check_change(tty);
-
- ip2trace (CHANN, ITRC_IOCTL, 5, 1, rc );
-
- if (!rc) {
- ip2_wait_until_sent(tty,0);
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1,
- CMD_SEND_BRK(arg ? arg*100 : 250));
- serviceOutgoingFifo ( pCh->pMyBord );
- }
- break;
-
- case TIOCGSOFTCAR:
-
- ip2trace (CHANN, ITRC_IOCTL, 6, 1, rc );
-
- rc = put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *)argp);
- if (rc)
- return rc;
- break;
-
- case TIOCSSOFTCAR:
-
- ip2trace (CHANN, ITRC_IOCTL, 7, 1, rc );
-
- rc = get_user(arg,(unsigned long __user *) argp);
- if (rc)
- return rc;
- tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL)
- | (arg ? CLOCAL : 0));
-
- break;
-
- /*
- * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change - mask
- * passed in arg for lines of interest (use |'ed TIOCM_RNG/DSR/CD/CTS
- * for masking). Caller should use TIOCGICOUNT to see which one it was
- */
- case TIOCMIWAIT:
- write_lock_irqsave(&pB->read_fifo_spinlock, flags);
- cprev = pCh->icount; /* note the counters on entry */
- write_unlock_irqrestore(&pB->read_fifo_spinlock, flags);
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 4,
- CMD_DCD_REP, CMD_CTS_REP, CMD_DSR_REP, CMD_RI_REP);
- init_waitqueue_entry(&wait, current);
- add_wait_queue(&pCh->delta_msr_wait, &wait);
- set_current_state( TASK_INTERRUPTIBLE );
-
- serviceOutgoingFifo( pCh->pMyBord );
- for(;;) {
- ip2trace (CHANN, ITRC_IOCTL, 10, 0 );
-
- schedule();
-
- ip2trace (CHANN, ITRC_IOCTL, 11, 0 );
-
- /* see if a signal did it */
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
- write_lock_irqsave(&pB->read_fifo_spinlock, flags);
- cnow = pCh->icount; /* atomic copy */
- write_unlock_irqrestore(&pB->read_fifo_spinlock, flags);
- if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
- cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
- rc = -EIO; /* no change => rc */
- break;
- }
- if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) ||
- ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) ||
- ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) ||
- ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts)) ) {
- rc = 0;
- break;
- }
- cprev = cnow;
- }
- set_current_state( TASK_RUNNING );
- remove_wait_queue(&pCh->delta_msr_wait, &wait);
-
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 3,
- CMD_CTS_NREP, CMD_DSR_NREP, CMD_RI_NREP);
- if ( ! (pCh->flags & ASYNC_CHECK_CD)) {
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_DCD_NREP);
- }
- serviceOutgoingFifo( pCh->pMyBord );
- return rc;
- break;
-
- /*
- * The rest are not supported by this driver. By returning -ENOIOCTLCMD they
- * will be passed to the line discipline for it to handle.
- */
- case TIOCSERCONFIG:
- case TIOCSERGWILD:
- case TIOCSERGETLSR:
- case TIOCSERSWILD:
- case TIOCSERGSTRUCT:
- case TIOCSERGETMULTI:
- case TIOCSERSETMULTI:
-
- default:
- ip2trace (CHANN, ITRC_IOCTL, 12, 0 );
-
- rc = -ENOIOCTLCMD;
- break;
- }
-
- ip2trace (CHANN, ITRC_IOCTL, ITRC_RETURN, 0 );
-
- return rc;
-}
-
-static int ip2_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-{
- i2ChanStrPtr pCh = DevTable[tty->index];
- i2eBordStrPtr pB;
- struct async_icount cnow; /* kernel counter temp */
- unsigned long flags;
-
- if ( pCh == NULL )
- return -ENODEV;
-
- pB = pCh->pMyBord;
-
- /*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for RI where
- * only 0->1 is counted. The controller is quite capable of counting
- * both, but this done to preserve compatibility with the standard
- * serial driver.
- */
-
- write_lock_irqsave(&pB->read_fifo_spinlock, flags);
- cnow = pCh->icount;
- write_unlock_irqrestore(&pB->read_fifo_spinlock, flags);
-
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->frame = cnow.frame;
- icount->overrun = cnow.overrun;
- icount->parity = cnow.parity;
- icount->brk = cnow.brk;
- icount->buf_overrun = cnow.buf_overrun;
- return 0;
-}
-
-/******************************************************************************/
-/* Function: GetSerialInfo() */
-/* Parameters: Pointer to channel structure */
-/* Pointer to old termios structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* This is to support the setserial command, and requires processing of the */
-/* standard Linux serial structure. */
-/******************************************************************************/
-static int
-get_serial_info ( i2ChanStrPtr pCh, struct serial_struct __user *retinfo )
-{
- struct serial_struct tmp;
-
- memset ( &tmp, 0, sizeof(tmp) );
- tmp.type = pCh->pMyBord->channelBtypes.bid_value[(pCh->port_index & (IP2_PORTS_PER_BOARD-1))/16];
- if (BID_HAS_654(tmp.type)) {
- tmp.type = PORT_16650;
- } else {
- tmp.type = PORT_CIRRUS;
- }
- tmp.line = pCh->port_index;
- tmp.port = pCh->pMyBord->i2eBase;
- tmp.irq = ip2config.irq[pCh->port_index/64];
- tmp.flags = pCh->flags;
- tmp.baud_base = pCh->BaudBase;
- tmp.close_delay = pCh->ClosingDelay;
- tmp.closing_wait = pCh->ClosingWaitTime;
- tmp.custom_divisor = pCh->BaudDivisor;
- return copy_to_user(retinfo,&tmp,sizeof(*retinfo));
-}
-
-/******************************************************************************/
-/* Function: SetSerialInfo() */
-/* Parameters: Pointer to channel structure */
-/* Pointer to old termios structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* This function provides support for setserial, which uses the TIOCSSERIAL */
-/* ioctl. Not all setserial parameters are relevant. If the user attempts to */
-/* change the IRQ, address or type of the port the ioctl fails. */
-/******************************************************************************/
-static int
-set_serial_info( i2ChanStrPtr pCh, struct serial_struct __user *new_info )
-{
- struct serial_struct ns;
- int old_flags, old_baud_divisor;
-
- if (copy_from_user(&ns, new_info, sizeof (ns)))
- return -EFAULT;
-
- /*
- * We don't allow setserial to change IRQ, board address, type or baud
- * base. Also line nunber as such is meaningless but we use it for our
- * array index so it is fixed also.
- */
- if ( (ns.irq != ip2config.irq[pCh->port_index])
- || ((int) ns.port != ((int) (pCh->pMyBord->i2eBase)))
- || (ns.baud_base != pCh->BaudBase)
- || (ns.line != pCh->port_index) ) {
- return -EINVAL;
- }
-
- old_flags = pCh->flags;
- old_baud_divisor = pCh->BaudDivisor;
-
- if ( !capable(CAP_SYS_ADMIN) ) {
- if ( ( ns.close_delay != pCh->ClosingDelay ) ||
- ( (ns.flags & ~ASYNC_USR_MASK) !=
- (pCh->flags & ~ASYNC_USR_MASK) ) ) {
- return -EPERM;
- }
-
- pCh->flags = (pCh->flags & ~ASYNC_USR_MASK) |
- (ns.flags & ASYNC_USR_MASK);
- pCh->BaudDivisor = ns.custom_divisor;
- } else {
- pCh->flags = (pCh->flags & ~ASYNC_FLAGS) |
- (ns.flags & ASYNC_FLAGS);
- pCh->BaudDivisor = ns.custom_divisor;
- pCh->ClosingDelay = ns.close_delay * HZ/100;
- pCh->ClosingWaitTime = ns.closing_wait * HZ/100;
- }
-
- if ( ( (old_flags & ASYNC_SPD_MASK) != (pCh->flags & ASYNC_SPD_MASK) )
- || (old_baud_divisor != pCh->BaudDivisor) ) {
- // Invalidate speed and reset parameters
- set_params( pCh, NULL );
- }
-
- return 0;
-}
-
-/******************************************************************************/
-/* Function: ip2_set_termios() */
-/* Parameters: Pointer to tty structure */
-/* Pointer to old termios structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_set_termios( PTTY tty, struct ktermios *old_termios )
-{
- i2ChanStrPtr pCh = (i2ChanStrPtr)tty->driver_data;
-
-#ifdef IP2DEBUG_IOCTL
- printk (KERN_DEBUG "IP2: set termios %p\n", old_termios );
-#endif
-
- set_params( pCh, old_termios );
-}
-
-/******************************************************************************/
-/* Function: ip2_set_line_discipline() */
-/* Parameters: Pointer to tty structure */
-/* Returns: Nothing */
-/* */
-/* Description: Does nothing */
-/* */
-/* */
-/******************************************************************************/
-static void
-ip2_set_line_discipline ( PTTY tty )
-{
-#ifdef IP2DEBUG_IOCTL
- printk (KERN_DEBUG "IP2: set line discipline\n" );
-#endif
-
- ip2trace (((i2ChanStrPtr)tty->driver_data)->port_index, ITRC_IOCTL, 16, 0 );
-
-}
-
-/******************************************************************************/
-/* Function: SetLine Characteristics() */
-/* Parameters: Pointer to channel structure */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* This routine is called to update the channel structure with the new line */
-/* characteristics, and send the appropriate commands to the board when they */
-/* change. */
-/******************************************************************************/
-static void
-set_params( i2ChanStrPtr pCh, struct ktermios *o_tios )
-{
- tcflag_t cflag, iflag, lflag;
- char stop_char, start_char;
- struct ktermios dummy;
-
- lflag = pCh->pTTY->termios->c_lflag;
- cflag = pCh->pTTY->termios->c_cflag;
- iflag = pCh->pTTY->termios->c_iflag;
-
- if (o_tios == NULL) {
- dummy.c_lflag = ~lflag;
- dummy.c_cflag = ~cflag;
- dummy.c_iflag = ~iflag;
- o_tios = &dummy;
- }
-
- {
- switch ( cflag & CBAUD ) {
- case B0:
- i2QueueCommands( PTYPE_BYPASS, pCh, 100, 2, CMD_RTSDN, CMD_DTRDN);
- pCh->dataSetOut &= ~(I2_DTR | I2_RTS);
- i2QueueCommands( PTYPE_INLINE, pCh, 100, 1, CMD_PAUSE(25));
- pCh->pTTY->termios->c_cflag |= (CBAUD & o_tios->c_cflag);
- goto service_it;
- break;
- case B38400:
- /*
- * This is the speed that is overloaded with all the other high
- * speeds, depending upon the flag settings.
- */
- if ( ( pCh->flags & ASYNC_SPD_MASK ) == ASYNC_SPD_HI ) {
- pCh->speed = CBR_57600;
- } else if ( (pCh->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI ) {
- pCh->speed = CBR_115200;
- } else if ( (pCh->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST ) {
- pCh->speed = CBR_C1;
- } else {
- pCh->speed = CBR_38400;
- }
- break;
- case B50: pCh->speed = CBR_50; break;
- case B75: pCh->speed = CBR_75; break;
- case B110: pCh->speed = CBR_110; break;
- case B134: pCh->speed = CBR_134; break;
- case B150: pCh->speed = CBR_150; break;
- case B200: pCh->speed = CBR_200; break;
- case B300: pCh->speed = CBR_300; break;
- case B600: pCh->speed = CBR_600; break;
- case B1200: pCh->speed = CBR_1200; break;
- case B1800: pCh->speed = CBR_1800; break;
- case B2400: pCh->speed = CBR_2400; break;
- case B4800: pCh->speed = CBR_4800; break;
- case B9600: pCh->speed = CBR_9600; break;
- case B19200: pCh->speed = CBR_19200; break;
- case B57600: pCh->speed = CBR_57600; break;
- case B115200: pCh->speed = CBR_115200; break;
- case B153600: pCh->speed = CBR_153600; break;
- case B230400: pCh->speed = CBR_230400; break;
- case B307200: pCh->speed = CBR_307200; break;
- case B460800: pCh->speed = CBR_460800; break;
- case B921600: pCh->speed = CBR_921600; break;
- default: pCh->speed = CBR_9600; break;
- }
- if ( pCh->speed == CBR_C1 ) {
- // Process the custom speed parameters.
- int bps = pCh->BaudBase / pCh->BaudDivisor;
- if ( bps == 921600 ) {
- pCh->speed = CBR_921600;
- } else {
- bps = bps/10;
- i2QueueCommands( PTYPE_INLINE, pCh, 100, 1, CMD_BAUD_DEF1(bps) );
- }
- }
- i2QueueCommands( PTYPE_INLINE, pCh, 100, 1, CMD_SETBAUD(pCh->speed));
-
- i2QueueCommands ( PTYPE_INLINE, pCh, 100, 2, CMD_DTRUP, CMD_RTSUP);
- pCh->dataSetOut |= (I2_DTR | I2_RTS);
- }
- if ( (CSTOPB & cflag) ^ (CSTOPB & o_tios->c_cflag))
- {
- i2QueueCommands ( PTYPE_INLINE, pCh, 100, 1,
- CMD_SETSTOP( ( cflag & CSTOPB ) ? CST_2 : CST_1));
- }
- if (((PARENB|PARODD) & cflag) ^ ((PARENB|PARODD) & o_tios->c_cflag))
- {
- i2QueueCommands ( PTYPE_INLINE, pCh, 100, 1,
- CMD_SETPAR(
- (cflag & PARENB ? (cflag & PARODD ? CSP_OD : CSP_EV) : CSP_NP)
- )
- );
- }
- /* byte size and parity */
- if ( (CSIZE & cflag)^(CSIZE & o_tios->c_cflag))
- {
- int datasize;
- switch ( cflag & CSIZE ) {
- case CS5: datasize = CSZ_5; break;
- case CS6: datasize = CSZ_6; break;
- case CS7: datasize = CSZ_7; break;
- case CS8: datasize = CSZ_8; break;
- default: datasize = CSZ_5; break; /* as per serial.c */
- }
- i2QueueCommands ( PTYPE_INLINE, pCh, 100, 1, CMD_SETBITS(datasize) );
- }
- /* Process CTS flow control flag setting */
- if ( (cflag & CRTSCTS) ) {
- i2QueueCommands(PTYPE_INLINE, pCh, 100,
- 2, CMD_CTSFL_ENAB, CMD_RTSFL_ENAB);
- } else {
- i2QueueCommands(PTYPE_INLINE, pCh, 100,
- 2, CMD_CTSFL_DSAB, CMD_RTSFL_DSAB);
- }
- //
- // Process XON/XOFF flow control flags settings
- //
- stop_char = STOP_CHAR(pCh->pTTY);
- start_char = START_CHAR(pCh->pTTY);
-
- //////////// can't be \000
- if (stop_char == __DISABLED_CHAR )
- {
- stop_char = ~__DISABLED_CHAR;
- }
- if (start_char == __DISABLED_CHAR )
- {
- start_char = ~__DISABLED_CHAR;
- }
- /////////////////////////////////
-
- if ( o_tios->c_cc[VSTART] != start_char )
- {
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_DEF_IXON(start_char));
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_DEF_OXON(start_char));
- }
- if ( o_tios->c_cc[VSTOP] != stop_char )
- {
- i2QueueCommands(PTYPE_BYPASS, pCh, 100, 1, CMD_DEF_IXOFF(stop_char));
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_DEF_OXOFF(stop_char));
- }
- if (stop_char == __DISABLED_CHAR )
- {
- stop_char = ~__DISABLED_CHAR; //TEST123
- goto no_xoff;
- }
- if ((iflag & (IXOFF))^(o_tios->c_iflag & (IXOFF)))
- {
- if ( iflag & IXOFF ) { // Enable XOFF output flow control
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_OXON_OPT(COX_XON));
- } else { // Disable XOFF output flow control
-no_xoff:
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_OXON_OPT(COX_NONE));
- }
- }
- if (start_char == __DISABLED_CHAR )
- {
- goto no_xon;
- }
- if ((iflag & (IXON|IXANY)) ^ (o_tios->c_iflag & (IXON|IXANY)))
- {
- if ( iflag & IXON ) {
- if ( iflag & IXANY ) { // Enable XON/XANY output flow control
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_IXON_OPT(CIX_XANY));
- } else { // Enable XON output flow control
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_IXON_OPT(CIX_XON));
- }
- } else { // Disable XON output flow control
-no_xon:
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_IXON_OPT(CIX_NONE));
- }
- }
- if ( (iflag & ISTRIP) ^ ( o_tios->c_iflag & (ISTRIP)) )
- {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1,
- CMD_ISTRIP_OPT((iflag & ISTRIP ? 1 : 0)));
- }
- if ( (iflag & INPCK) ^ ( o_tios->c_iflag & (INPCK)) )
- {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1,
- CMD_PARCHK((iflag & INPCK) ? CPK_ENAB : CPK_DSAB));
- }
-
- if ( (iflag & (IGNBRK|PARMRK|BRKINT|IGNPAR))
- ^ ( o_tios->c_iflag & (IGNBRK|PARMRK|BRKINT|IGNPAR)) )
- {
- char brkrpt = 0;
- char parrpt = 0;
-
- if ( iflag & IGNBRK ) { /* Ignore breaks altogether */
- /* Ignore breaks altogether */
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_BRK_NREP);
- } else {
- if ( iflag & BRKINT ) {
- if ( iflag & PARMRK ) {
- brkrpt = 0x0a; // exception an inline triple
- } else {
- brkrpt = 0x1a; // exception and NULL
- }
- brkrpt |= 0x04; // flush input
- } else {
- if ( iflag & PARMRK ) {
- brkrpt = 0x0b; //POSIX triple \0377 \0 \0
- } else {
- brkrpt = 0x01; // Null only
- }
- }
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_BRK_REP(brkrpt));
- }
-
- if (iflag & IGNPAR) {
- parrpt = 0x20;
- /* would be 2 for not cirrus bug */
- /* would be 0x20 cept for cirrus bug */
- } else {
- if ( iflag & PARMRK ) {
- /*
- * Replace error characters with 3-byte sequence (\0377,\0,char)
- */
- parrpt = 0x04 ;
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_ISTRIP_OPT((char)0));
- } else {
- parrpt = 0x03;
- }
- }
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_SET_ERROR(parrpt));
- }
- if (cflag & CLOCAL) {
- // Status reporting fails for DCD if this is off
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_DCD_NREP);
- pCh->flags &= ~ASYNC_CHECK_CD;
- } else {
- i2QueueCommands(PTYPE_INLINE, pCh, 100, 1, CMD_DCD_REP);
- pCh->flags |= ASYNC_CHECK_CD;
- }
-
-service_it:
- i2DrainOutput( pCh, 100 );
-}
-
-/******************************************************************************/
-/* IPL Device Section */
-/******************************************************************************/
-
-/******************************************************************************/
-/* Function: ip2_ipl_read() */
-/* Parameters: Pointer to device inode */
-/* Pointer to file structure */
-/* Pointer to data */
-/* Number of bytes to read */
-/* Returns: Success or failure */
-/* */
-/* Description: Ugly */
-/* */
-/* */
-/******************************************************************************/
-
-static
-ssize_t
-ip2_ipl_read(struct file *pFile, char __user *pData, size_t count, loff_t *off )
-{
- unsigned int minor = iminor(pFile->f_path.dentry->d_inode);
- int rc = 0;
-
-#ifdef IP2DEBUG_IPL
- printk (KERN_DEBUG "IP2IPL: read %p, %d bytes\n", pData, count );
-#endif
-
- switch( minor ) {
- case 0: // IPL device
- rc = -EINVAL;
- break;
- case 1: // Status dump
- rc = -EINVAL;
- break;
- case 2: // Ping device
- rc = -EINVAL;
- break;
- case 3: // Trace device
- rc = DumpTraceBuffer ( pData, count );
- break;
- case 4: // Trace device
- rc = DumpFifoBuffer ( pData, count );
- break;
- default:
- rc = -ENODEV;
- break;
- }
- return rc;
-}
-
-static int
-DumpFifoBuffer ( char __user *pData, int count )
-{
-#ifdef DEBUG_FIFO
- int rc;
- rc = copy_to_user(pData, DBGBuf, count);
-
- printk(KERN_DEBUG "Last index %d\n", I );
-
- return count;
-#endif /* DEBUG_FIFO */
- return 0;
-}
-
-static int
-DumpTraceBuffer ( char __user *pData, int count )
-{
-#ifdef IP2DEBUG_TRACE
- int rc;
- int dumpcount;
- int chunk;
- int *pIndex = (int __user *)pData;
-
- if ( count < (sizeof(int) * 6) ) {
- return -EIO;
- }
- rc = put_user(tracewrap, pIndex );
- rc = put_user(TRACEMAX, ++pIndex );
- rc = put_user(tracestrip, ++pIndex );
- rc = put_user(tracestuff, ++pIndex );
- pData += sizeof(int) * 6;
- count -= sizeof(int) * 6;
-
- dumpcount = tracestuff - tracestrip;
- if ( dumpcount < 0 ) {
- dumpcount += TRACEMAX;
- }
- if ( dumpcount > count ) {
- dumpcount = count;
- }
- chunk = TRACEMAX - tracestrip;
- if ( dumpcount > chunk ) {
- rc = copy_to_user(pData, &tracebuf[tracestrip],
- chunk * sizeof(tracebuf[0]) );
- pData += chunk * sizeof(tracebuf[0]);
- tracestrip = 0;
- chunk = dumpcount - chunk;
- } else {
- chunk = dumpcount;
- }
- rc = copy_to_user(pData, &tracebuf[tracestrip],
- chunk * sizeof(tracebuf[0]) );
- tracestrip += chunk;
- tracewrap = 0;
-
- rc = put_user(tracestrip, ++pIndex );
- rc = put_user(tracestuff, ++pIndex );
-
- return dumpcount;
-#else
- return 0;
-#endif
-}
-
-/******************************************************************************/
-/* Function: ip2_ipl_write() */
-/* Parameters: */
-/* Pointer to file structure */
-/* Pointer to data */
-/* Number of bytes to write */
-/* Returns: Success or failure */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static ssize_t
-ip2_ipl_write(struct file *pFile, const char __user *pData, size_t count, loff_t *off)
-{
-#ifdef IP2DEBUG_IPL
- printk (KERN_DEBUG "IP2IPL: write %p, %d bytes\n", pData, count );
-#endif
- return 0;
-}
-
-/******************************************************************************/
-/* Function: ip2_ipl_ioctl() */
-/* Parameters: Pointer to device inode */
-/* Pointer to file structure */
-/* Command */
-/* Argument */
-/* Returns: Success or failure */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static long
-ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg )
-{
- unsigned int iplminor = iminor(pFile->f_path.dentry->d_inode);
- int rc = 0;
- void __user *argp = (void __user *)arg;
- ULONG __user *pIndex = argp;
- i2eBordStrPtr pB = i2BoardPtrTable[iplminor / 4];
- i2ChanStrPtr pCh;
-
-#ifdef IP2DEBUG_IPL
- printk (KERN_DEBUG "IP2IPL: ioctl cmd %d, arg %ld\n", cmd, arg );
-#endif
-
- mutex_lock(&ip2_mutex);
-
- switch ( iplminor ) {
- case 0: // IPL device
- rc = -EINVAL;
- break;
- case 1: // Status dump
- case 5:
- case 9:
- case 13:
- switch ( cmd ) {
- case 64: /* Driver - ip2stat */
- rc = put_user(-1, pIndex++ );
- rc = put_user(irq_counter, pIndex++ );
- rc = put_user(bh_counter, pIndex++ );
- break;
-
- case 65: /* Board - ip2stat */
- if ( pB ) {
- rc = copy_to_user(argp, pB, sizeof(i2eBordStr));
- rc = put_user(inb(pB->i2eStatus),
- (ULONG __user *)(arg + (ULONG)(&pB->i2eStatus) - (ULONG)pB ) );
- } else {
- rc = -ENODEV;
- }
- break;
-
- default:
- if (cmd < IP2_MAX_PORTS) {
- pCh = DevTable[cmd];
- if ( pCh )
- {
- rc = copy_to_user(argp, pCh, sizeof(i2ChanStr));
- if (rc)
- rc = -EFAULT;
- } else {
- rc = -ENODEV;
- }
- } else {
- rc = -EINVAL;
- }
- }
- break;
-
- case 2: // Ping device
- rc = -EINVAL;
- break;
- case 3: // Trace device
- /*
- * akpm: This used to write a whole bunch of function addresses
- * to userspace, which generated lots of put_user() warnings.
- * I killed it all. Just return "success" and don't do
- * anything.
- */
- if (cmd == 1)
- rc = 0;
- else
- rc = -EINVAL;
- break;
-
- default:
- rc = -ENODEV;
- break;
- }
- mutex_unlock(&ip2_mutex);
- return rc;
-}
-
-/******************************************************************************/
-/* Function: ip2_ipl_open() */
-/* Parameters: Pointer to device inode */
-/* Pointer to file structure */
-/* Returns: Success or failure */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-static int
-ip2_ipl_open( struct inode *pInode, struct file *pFile )
-{
-
-#ifdef IP2DEBUG_IPL
- printk (KERN_DEBUG "IP2IPL: open\n" );
-#endif
- return 0;
-}
-
-static int
-proc_ip2mem_show(struct seq_file *m, void *v)
-{
- i2eBordStrPtr pB;
- i2ChanStrPtr pCh;
- PTTY tty;
- int i;
-
-#define FMTLINE "%3d: 0x%08x 0x%08x 0%011o 0%011o\n"
-#define FMTLIN2 " 0x%04x 0x%04x tx flow 0x%x\n"
-#define FMTLIN3 " 0x%04x 0x%04x rc flow\n"
-
- seq_printf(m,"\n");
-
- for( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- pB = i2BoardPtrTable[i];
- if ( pB ) {
- seq_printf(m,"board %d:\n",i);
- seq_printf(m,"\tFifo rem: %d mty: %x outM %x\n",
- pB->i2eFifoRemains,pB->i2eWaitingForEmptyFifo,pB->i2eOutMailWaiting);
- }
- }
-
- seq_printf(m,"#: tty flags, port flags, cflags, iflags\n");
- for (i=0; i < IP2_MAX_PORTS; i++) {
- pCh = DevTable[i];
- if (pCh) {
- tty = pCh->pTTY;
- if (tty && tty->count) {
- seq_printf(m,FMTLINE,i,(int)tty->flags,pCh->flags,
- tty->termios->c_cflag,tty->termios->c_iflag);
-
- seq_printf(m,FMTLIN2,
- pCh->outfl.asof,pCh->outfl.room,pCh->channelNeeds);
- seq_printf(m,FMTLIN3,pCh->infl.asof,pCh->infl.room);
- }
- }
- }
- return 0;
-}
-
-static int proc_ip2mem_open(struct inode *inode, struct file *file)
-{
- return single_open(file, proc_ip2mem_show, NULL);
-}
-
-static const struct file_operations ip2mem_proc_fops = {
- .owner = THIS_MODULE,
- .open = proc_ip2mem_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * This is the handler for /proc/tty/driver/ip2
- *
- * This stretch of code has been largely plagerized from at least three
- * different sources including ip2mkdev.c and a couple of other drivers.
- * The bugs are all mine. :-) =mhw=
- */
-static int ip2_proc_show(struct seq_file *m, void *v)
-{
- int i, j, box;
- int boxes = 0;
- int ports = 0;
- int tports = 0;
- i2eBordStrPtr pB;
- char *sep;
-
- seq_printf(m, "ip2info: 1.0 driver: %s\n", pcVersion);
- seq_printf(m, "Driver: SMajor=%d CMajor=%d IMajor=%d MaxBoards=%d MaxBoxes=%d MaxPorts=%d\n",
- IP2_TTY_MAJOR, IP2_CALLOUT_MAJOR, IP2_IPL_MAJOR,
- IP2_MAX_BOARDS, ABS_MAX_BOXES, ABS_BIGGEST_BOX);
-
- for( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- /* This need to be reset for a board by board count... */
- boxes = 0;
- pB = i2BoardPtrTable[i];
- if( pB ) {
- switch( pB->i2ePom.e.porID & ~POR_ID_RESERVED )
- {
- case POR_ID_FIIEX:
- seq_printf(m, "Board %d: EX ports=", i);
- sep = "";
- for( box = 0; box < ABS_MAX_BOXES; ++box )
- {
- ports = 0;
-
- if( pB->i2eChannelMap[box] != 0 ) ++boxes;
- for( j = 0; j < ABS_BIGGEST_BOX; ++j )
- {
- if( pB->i2eChannelMap[box] & 1<< j ) {
- ++ports;
- }
- }
- seq_printf(m, "%s%d", sep, ports);
- sep = ",";
- tports += ports;
- }
- seq_printf(m, " boxes=%d width=%d", boxes, pB->i2eDataWidth16 ? 16 : 8);
- break;
-
- case POR_ID_II_4:
- seq_printf(m, "Board %d: ISA-4 ports=4 boxes=1", i);
- tports = ports = 4;
- break;
-
- case POR_ID_II_8:
- seq_printf(m, "Board %d: ISA-8-std ports=8 boxes=1", i);
- tports = ports = 8;
- break;
-
- case POR_ID_II_8R:
- seq_printf(m, "Board %d: ISA-8-RJ11 ports=8 boxes=1", i);
- tports = ports = 8;
- break;
-
- default:
- seq_printf(m, "Board %d: unknown", i);
- /* Don't try and probe for minor numbers */
- tports = ports = 0;
- }
-
- } else {
- /* Don't try and probe for minor numbers */
- seq_printf(m, "Board %d: vacant", i);
- tports = ports = 0;
- }
-
- if( tports ) {
- seq_puts(m, " minors=");
- sep = "";
- for ( box = 0; box < ABS_MAX_BOXES; ++box )
- {
- for ( j = 0; j < ABS_BIGGEST_BOX; ++j )
- {
- if ( pB->i2eChannelMap[box] & (1 << j) )
- {
- seq_printf(m, "%s%d", sep,
- j + ABS_BIGGEST_BOX *
- (box+i*ABS_MAX_BOXES));
- sep = ",";
- }
- }
- }
- }
- seq_putc(m, '\n');
- }
- return 0;
- }
-
-static int ip2_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ip2_proc_show, NULL);
-}
-
-static const struct file_operations ip2_proc_fops = {
- .owner = THIS_MODULE,
- .open = ip2_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/******************************************************************************/
-/* Function: ip2trace() */
-/* Parameters: Value to add to trace buffer */
-/* Returns: Nothing */
-/* */
-/* Description: */
-/* */
-/* */
-/******************************************************************************/
-#ifdef IP2DEBUG_TRACE
-void
-ip2trace (unsigned short pn, unsigned char cat, unsigned char label, unsigned long codes, ...)
-{
- long flags;
- unsigned long *pCode = &codes;
- union ip2breadcrumb bc;
- i2ChanStrPtr pCh;
-
-
- tracebuf[tracestuff++] = jiffies;
- if ( tracestuff == TRACEMAX ) {
- tracestuff = 0;
- }
- if ( tracestuff == tracestrip ) {
- if ( ++tracestrip == TRACEMAX ) {
- tracestrip = 0;
- }
- ++tracewrap;
- }
-
- bc.hdr.port = 0xff & pn;
- bc.hdr.cat = cat;
- bc.hdr.codes = (unsigned char)( codes & 0xff );
- bc.hdr.label = label;
- tracebuf[tracestuff++] = bc.value;
-
- for (;;) {
- if ( tracestuff == TRACEMAX ) {
- tracestuff = 0;
- }
- if ( tracestuff == tracestrip ) {
- if ( ++tracestrip == TRACEMAX ) {
- tracestrip = 0;
- }
- ++tracewrap;
- }
-
- if ( !codes-- )
- break;
-
- tracebuf[tracestuff++] = *++pCode;
- }
-}
-#endif
-
-
-MODULE_LICENSE("GPL");
-
-static struct pci_device_id ip2main_pci_tbl[] __devinitdata __used = {
- { PCI_DEVICE(PCI_VENDOR_ID_COMPUTONE, PCI_DEVICE_ID_COMPUTONE_IP2EX) },
- { }
-};
-
-MODULE_DEVICE_TABLE(pci, ip2main_pci_tbl);
-
-MODULE_FIRMWARE("intelliport2.bin");
diff --git a/drivers/char/ip2/ip2trace.h b/drivers/char/ip2/ip2trace.h
deleted file mode 100644
index da20435dc8a..00000000000
--- a/drivers/char/ip2/ip2trace.h
+++ /dev/null
@@ -1,42 +0,0 @@
-
-//
-union ip2breadcrumb
-{
- struct {
- unsigned char port, cat, codes, label;
- } __attribute__ ((packed)) hdr;
- unsigned long value;
-};
-
-#define ITRC_NO_PORT 0xFF
-#define CHANN (pCh->port_index)
-
-#define ITRC_ERROR '!'
-#define ITRC_INIT 'A'
-#define ITRC_OPEN 'B'
-#define ITRC_CLOSE 'C'
-#define ITRC_DRAIN 'D'
-#define ITRC_IOCTL 'E'
-#define ITRC_FLUSH 'F'
-#define ITRC_STATUS 'G'
-#define ITRC_HANGUP 'H'
-#define ITRC_INTR 'I'
-#define ITRC_SFLOW 'J'
-#define ITRC_SBCMD 'K'
-#define ITRC_SICMD 'L'
-#define ITRC_MODEM 'M'
-#define ITRC_INPUT 'N'
-#define ITRC_OUTPUT 'O'
-#define ITRC_PUTC 'P'
-#define ITRC_QUEUE 'Q'
-#define ITRC_STFLW 'R'
-#define ITRC_SFIFO 'S'
-#define ITRC_VERIFY 'V'
-#define ITRC_WRITE 'W'
-
-#define ITRC_ENTER 0x00
-#define ITRC_RETURN 0xFF
-
-#define ITRC_QUEUE_ROOM 2
-#define ITRC_QUEUE_CMD 6
-
diff --git a/drivers/char/ip2/ip2types.h b/drivers/char/ip2/ip2types.h
deleted file mode 100644
index 9d67b260b2f..00000000000
--- a/drivers/char/ip2/ip2types.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*******************************************************************************
-*
-* (c) 1998 by Computone Corporation
-*
-********************************************************************************
-*
-*
-* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
-* serial I/O controllers.
-*
-* DESCRIPTION: Driver constants and type definitions.
-*
-* NOTES:
-*
-*******************************************************************************/
-#ifndef IP2TYPES_H
-#define IP2TYPES_H
-
-//*************
-//* Constants *
-//*************
-
-// Define some limits for this driver. Ports per board is a hardware limitation
-// that will not change. Current hardware limits this to 64 ports per board.
-// Boards per driver is a self-imposed limit.
-//
-#define IP2_MAX_BOARDS 4
-#define IP2_PORTS_PER_BOARD ABS_MOST_PORTS
-#define IP2_MAX_PORTS (IP2_MAX_BOARDS*IP2_PORTS_PER_BOARD)
-
-#define ISA 0
-#define PCI 1
-#define EISA 2
-
-//********************
-//* Type Definitions *
-//********************
-
-typedef struct tty_struct * PTTY;
-typedef wait_queue_head_t PWAITQ;
-
-typedef unsigned char UCHAR;
-typedef unsigned int UINT;
-typedef unsigned short USHORT;
-typedef unsigned long ULONG;
-
-typedef struct
-{
- short irq[IP2_MAX_BOARDS];
- unsigned short addr[IP2_MAX_BOARDS];
- int type[IP2_MAX_BOARDS];
-#ifdef CONFIG_PCI
- struct pci_dev *pci_dev[IP2_MAX_BOARDS];
-#endif
-} ip2config_t;
-
-#endif
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
deleted file mode 100644
index c27e9d21fea..00000000000
--- a/drivers/char/isicom.c
+++ /dev/null
@@ -1,1736 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Original driver code supplied by Multi-Tech
- *
- * Changes
- * 1/9/98 alan@lxorguk.ukuu.org.uk
- * Merge to 2.0.x kernel tree
- * Obtain and use official major/minors
- * Loader switched to a misc device
- * (fixed range check bug as a side effect)
- * Printk clean up
- * 9/12/98 alan@lxorguk.ukuu.org.uk
- * Rough port to 2.1.x
- *
- * 10/6/99 sameer Merged the ISA and PCI drivers to
- * a new unified driver.
- *
- * 3/9/99 sameer Added support for ISI4616 cards.
- *
- * 16/9/99 sameer We do not force RTS low anymore.
- * This is to prevent the firmware
- * from getting confused.
- *
- * 26/10/99 sameer Cosmetic changes:The driver now
- * dumps the Port Count information
- * along with I/O address and IRQ.
- *
- * 13/12/99 sameer Fixed the problem with IRQ sharing.
- *
- * 10/5/00 sameer Fixed isicom_shutdown_board()
- * to not lower DTR on all the ports
- * when the last port on the card is
- * closed.
- *
- * 10/5/00 sameer Signal mask setup command added
- * to isicom_setup_port and
- * isicom_shutdown_port.
- *
- * 24/5/00 sameer The driver is now SMP aware.
- *
- *
- * 27/11/00 Vinayak P Risbud Fixed the Driver Crash Problem
- *
- *
- * 03/01/01 anil .s Added support for resetting the
- * internal modems on ISI cards.
- *
- * 08/02/01 anil .s Upgraded the driver for kernel
- * 2.4.x
- *
- * 11/04/01 Kevin Fixed firmware load problem with
- * ISIHP-4X card
- *
- * 30/04/01 anil .s Fixed the remote login through
- * ISI port problem. Now the link
- * does not go down before password
- * prompt.
- *
- * 03/05/01 anil .s Fixed the problem with IRQ sharing
- * among ISI-PCI cards.
- *
- * 03/05/01 anil .s Added support to display the version
- * info during insmod as well as module
- * listing by lsmod.
- *
- * 10/05/01 anil .s Done the modifications to the source
- * file and Install script so that the
- * same installation can be used for
- * 2.2.x and 2.4.x kernel.
- *
- * 06/06/01 anil .s Now we drop both dtr and rts during
- * shutdown_port as well as raise them
- * during isicom_config_port.
- *
- * 09/06/01 acme@conectiva.com.br use capable, not suser, do
- * restore_flags on failure in
- * isicom_send_break, verify put_user
- * result
- *
- * 11/02/03 ranjeeth Added support for 230 Kbps and 460 Kbps
- * Baud index extended to 21
- *
- * 20/03/03 ranjeeth Made to work for Linux Advanced server.
- * Taken care of license warning.
- *
- * 10/12/03 Ravindra Made to work for Fedora Core 1 of
- * Red Hat Distribution
- *
- * 06/01/05 Alan Cox Merged the ISI and base kernel strands
- * into a single 2.6 driver
- *
- * ***********************************************************
- *
- * To use this driver you also need the support package. You
- * can find this in RPM format on
- * ftp://ftp.linux.org.uk/pub/linux/alan
- *
- * You can find the original tools for this direct from Multitech
- * ftp://ftp.multitech.com/ISI-Cards/
- *
- * Having installed the cards the module options (/etc/modprobe.conf)
- *
- * options isicom io=card1,card2,card3,card4 irq=card1,card2,card3,card4
- *
- * Omit those entries for boards you don't have installed.
- *
- * TODO
- * Merge testing
- * 64-bit verification
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/firmware.h>
-#include <linux/kernel.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/termios.h>
-#include <linux/fs.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-
-#include <linux/uaccess.h>
-#include <linux/io.h>
-#include <asm/system.h>
-
-#include <linux/pci.h>
-
-#include <linux/isicom.h>
-
-#define InterruptTheCard(base) outw(0, (base) + 0xc)
-#define ClearInterrupt(base) inw((base) + 0x0a)
-
-#ifdef DEBUG
-#define isicom_paranoia_check(a, b, c) __isicom_paranoia_check((a), (b), (c))
-#else
-#define isicom_paranoia_check(a, b, c) 0
-#endif
-
-static int isicom_probe(struct pci_dev *, const struct pci_device_id *);
-static void __devexit isicom_remove(struct pci_dev *);
-
-static struct pci_device_id isicom_pci_tbl[] = {
- { PCI_DEVICE(VENDOR_ID, 0x2028) },
- { PCI_DEVICE(VENDOR_ID, 0x2051) },
- { PCI_DEVICE(VENDOR_ID, 0x2052) },
- { PCI_DEVICE(VENDOR_ID, 0x2053) },
- { PCI_DEVICE(VENDOR_ID, 0x2054) },
- { PCI_DEVICE(VENDOR_ID, 0x2055) },
- { PCI_DEVICE(VENDOR_ID, 0x2056) },
- { PCI_DEVICE(VENDOR_ID, 0x2057) },
- { PCI_DEVICE(VENDOR_ID, 0x2058) },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, isicom_pci_tbl);
-
-static struct pci_driver isicom_driver = {
- .name = "isicom",
- .id_table = isicom_pci_tbl,
- .probe = isicom_probe,
- .remove = __devexit_p(isicom_remove)
-};
-
-static int prev_card = 3; /* start servicing isi_card[0] */
-static struct tty_driver *isicom_normal;
-
-static void isicom_tx(unsigned long _data);
-static void isicom_start(struct tty_struct *tty);
-
-static DEFINE_TIMER(tx, isicom_tx, 0, 0);
-
-/* baud index mappings from linux defns to isi */
-
-static signed char linuxb_to_isib[] = {
- -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 20, 21
-};
-
-struct isi_board {
- unsigned long base;
- int irq;
- unsigned char port_count;
- unsigned short status;
- unsigned short port_status; /* each bit for each port */
- unsigned short shift_count;
- struct isi_port *ports;
- signed char count;
- spinlock_t card_lock; /* Card wide lock 11/5/00 -sameer */
- unsigned long flags;
- unsigned int index;
-};
-
-struct isi_port {
- unsigned short magic;
- struct tty_port port;
- u16 channel;
- u16 status;
- struct isi_board *card;
- unsigned char *xmit_buf;
- int xmit_head;
- int xmit_tail;
- int xmit_cnt;
-};
-
-static struct isi_board isi_card[BOARD_COUNT];
-static struct isi_port isi_ports[PORT_COUNT];
-
-/*
- * Locking functions for card level locking. We need to own both
- * the kernel lock for the card and have the card in a position that
- * it wants to talk.
- */
-
-static inline int WaitTillCardIsFree(unsigned long base)
-{
- unsigned int count = 0;
- unsigned int a = in_atomic(); /* do we run under spinlock? */
-
- while (!(inw(base + 0xe) & 0x1) && count++ < 100)
- if (a)
- mdelay(1);
- else
- msleep(1);
-
- return !(inw(base + 0xe) & 0x1);
-}
-
-static int lock_card(struct isi_board *card)
-{
- unsigned long base = card->base;
- unsigned int retries, a;
-
- for (retries = 0; retries < 10; retries++) {
- spin_lock_irqsave(&card->card_lock, card->flags);
- for (a = 0; a < 10; a++) {
- if (inw(base + 0xe) & 0x1)
- return 1;
- udelay(10);
- }
- spin_unlock_irqrestore(&card->card_lock, card->flags);
- msleep(10);
- }
- pr_warning("Failed to lock Card (0x%lx)\n", card->base);
-
- return 0; /* Failed to acquire the card! */
-}
-
-static void unlock_card(struct isi_board *card)
-{
- spin_unlock_irqrestore(&card->card_lock, card->flags);
-}
-
-/*
- * ISI Card specific ops ...
- */
-
-/* card->lock HAS to be held */
-static void raise_dtr(struct isi_port *port)
-{
- struct isi_board *card = port->card;
- unsigned long base = card->base;
- u16 channel = port->channel;
-
- if (WaitTillCardIsFree(base))
- return;
-
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0504, base);
- InterruptTheCard(base);
- port->status |= ISI_DTR;
-}
-
-/* card->lock HAS to be held */
-static inline void drop_dtr(struct isi_port *port)
-{
- struct isi_board *card = port->card;
- unsigned long base = card->base;
- u16 channel = port->channel;
-
- if (WaitTillCardIsFree(base))
- return;
-
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0404, base);
- InterruptTheCard(base);
- port->status &= ~ISI_DTR;
-}
-
-/* card->lock HAS to be held */
-static inline void raise_rts(struct isi_port *port)
-{
- struct isi_board *card = port->card;
- unsigned long base = card->base;
- u16 channel = port->channel;
-
- if (WaitTillCardIsFree(base))
- return;
-
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0a04, base);
- InterruptTheCard(base);
- port->status |= ISI_RTS;
-}
-
-/* card->lock HAS to be held */
-static inline void drop_rts(struct isi_port *port)
-{
- struct isi_board *card = port->card;
- unsigned long base = card->base;
- u16 channel = port->channel;
-
- if (WaitTillCardIsFree(base))
- return;
-
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0804, base);
- InterruptTheCard(base);
- port->status &= ~ISI_RTS;
-}
-
-/* card->lock MUST NOT be held */
-
-static void isicom_dtr_rts(struct tty_port *port, int on)
-{
- struct isi_port *ip = container_of(port, struct isi_port, port);
- struct isi_board *card = ip->card;
- unsigned long base = card->base;
- u16 channel = ip->channel;
-
- if (!lock_card(card))
- return;
-
- if (on) {
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0f04, base);
- InterruptTheCard(base);
- ip->status |= (ISI_DTR | ISI_RTS);
- } else {
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0C04, base);
- InterruptTheCard(base);
- ip->status &= ~(ISI_DTR | ISI_RTS);
- }
- unlock_card(card);
-}
-
-/* card->lock HAS to be held */
-static void drop_dtr_rts(struct isi_port *port)
-{
- struct isi_board *card = port->card;
- unsigned long base = card->base;
- u16 channel = port->channel;
-
- if (WaitTillCardIsFree(base))
- return;
-
- outw(0x8000 | (channel << card->shift_count) | 0x02, base);
- outw(0x0c04, base);
- InterruptTheCard(base);
- port->status &= ~(ISI_RTS | ISI_DTR);
-}
-
-/*
- * ISICOM Driver specific routines ...
- *
- */
-
-static inline int __isicom_paranoia_check(struct isi_port const *port,
- char *name, const char *routine)
-{
- if (!port) {
- pr_warning("Warning: bad isicom magic for dev %s in %s.\n",
- name, routine);
- return 1;
- }
- if (port->magic != ISICOM_MAGIC) {
- pr_warning("Warning: NULL isicom port for dev %s in %s.\n",
- name, routine);
- return 1;
- }
-
- return 0;
-}
-
-/*
- * Transmitter.
- *
- * We shovel data into the card buffers on a regular basis. The card
- * will do the rest of the work for us.
- */
-
-static void isicom_tx(unsigned long _data)
-{
- unsigned long flags, base;
- unsigned int retries;
- short count = (BOARD_COUNT-1), card;
- short txcount, wrd, residue, word_count, cnt;
- struct isi_port *port;
- struct tty_struct *tty;
-
- /* find next active board */
- card = (prev_card + 1) & 0x0003;
- while (count-- > 0) {
- if (isi_card[card].status & BOARD_ACTIVE)
- break;
- card = (card + 1) & 0x0003;
- }
- if (!(isi_card[card].status & BOARD_ACTIVE))
- goto sched_again;
-
- prev_card = card;
-
- count = isi_card[card].port_count;
- port = isi_card[card].ports;
- base = isi_card[card].base;
-
- spin_lock_irqsave(&isi_card[card].card_lock, flags);
- for (retries = 0; retries < 100; retries++) {
- if (inw(base + 0xe) & 0x1)
- break;
- udelay(2);
- }
- if (retries >= 100)
- goto unlock;
-
- tty = tty_port_tty_get(&port->port);
- if (tty == NULL)
- goto put_unlock;
-
- for (; count > 0; count--, port++) {
- /* port not active or tx disabled to force flow control */
- if (!(port->port.flags & ASYNC_INITIALIZED) ||
- !(port->status & ISI_TXOK))
- continue;
-
- txcount = min_t(short, TX_SIZE, port->xmit_cnt);
- if (txcount <= 0 || tty->stopped || tty->hw_stopped)
- continue;
-
- if (!(inw(base + 0x02) & (1 << port->channel)))
- continue;
-
- pr_debug("txing %d bytes, port%d.\n",
- txcount, port->channel + 1);
- outw((port->channel << isi_card[card].shift_count) | txcount,
- base);
- residue = NO;
- wrd = 0;
- while (1) {
- cnt = min_t(int, txcount, (SERIAL_XMIT_SIZE
- - port->xmit_tail));
- if (residue == YES) {
- residue = NO;
- if (cnt > 0) {
- wrd |= (port->port.xmit_buf[port->xmit_tail]
- << 8);
- port->xmit_tail = (port->xmit_tail + 1)
- & (SERIAL_XMIT_SIZE - 1);
- port->xmit_cnt--;
- txcount--;
- cnt--;
- outw(wrd, base);
- } else {
- outw(wrd, base);
- break;
- }
- }
- if (cnt <= 0)
- break;
- word_count = cnt >> 1;
- outsw(base, port->port.xmit_buf+port->xmit_tail, word_count);
- port->xmit_tail = (port->xmit_tail
- + (word_count << 1)) & (SERIAL_XMIT_SIZE - 1);
- txcount -= (word_count << 1);
- port->xmit_cnt -= (word_count << 1);
- if (cnt & 0x0001) {
- residue = YES;
- wrd = port->port.xmit_buf[port->xmit_tail];
- port->xmit_tail = (port->xmit_tail + 1)
- & (SERIAL_XMIT_SIZE - 1);
- port->xmit_cnt--;
- txcount--;
- }
- }
-
- InterruptTheCard(base);
- if (port->xmit_cnt <= 0)
- port->status &= ~ISI_TXOK;
- if (port->xmit_cnt <= WAKEUP_CHARS)
- tty_wakeup(tty);
- }
-
-put_unlock:
- tty_kref_put(tty);
-unlock:
- spin_unlock_irqrestore(&isi_card[card].card_lock, flags);
- /* schedule another tx for hopefully in about 10ms */
-sched_again:
- mod_timer(&tx, jiffies + msecs_to_jiffies(10));
-}
-
-/*
- * Main interrupt handler routine
- */
-
-static irqreturn_t isicom_interrupt(int irq, void *dev_id)
-{
- struct isi_board *card = dev_id;
- struct isi_port *port;
- struct tty_struct *tty;
- unsigned long base;
- u16 header, word_count, count, channel;
- short byte_count;
- unsigned char *rp;
-
- if (!card || !(card->status & FIRMWARE_LOADED))
- return IRQ_NONE;
-
- base = card->base;
-
- /* did the card interrupt us? */
- if (!(inw(base + 0x0e) & 0x02))
- return IRQ_NONE;
-
- spin_lock(&card->card_lock);
-
- /*
- * disable any interrupts from the PCI card and lower the
- * interrupt line
- */
- outw(0x8000, base+0x04);
- ClearInterrupt(base);
-
- inw(base); /* get the dummy word out */
- header = inw(base);
- channel = (header & 0x7800) >> card->shift_count;
- byte_count = header & 0xff;
-
- if (channel + 1 > card->port_count) {
- pr_warning("%s(0x%lx): %d(channel) > port_count.\n",
- __func__, base, channel+1);
- outw(0x0000, base+0x04); /* enable interrupts */
- spin_unlock(&card->card_lock);
- return IRQ_HANDLED;
- }
- port = card->ports + channel;
- if (!(port->port.flags & ASYNC_INITIALIZED)) {
- outw(0x0000, base+0x04); /* enable interrupts */
- spin_unlock(&card->card_lock);
- return IRQ_HANDLED;
- }
-
- tty = tty_port_tty_get(&port->port);
- if (tty == NULL) {
- word_count = byte_count >> 1;
- while (byte_count > 1) {
- inw(base);
- byte_count -= 2;
- }
- if (byte_count & 0x01)
- inw(base);
- outw(0x0000, base+0x04); /* enable interrupts */
- spin_unlock(&card->card_lock);
- return IRQ_HANDLED;
- }
-
- if (header & 0x8000) { /* Status Packet */
- header = inw(base);
- switch (header & 0xff) {
- case 0: /* Change in EIA signals */
- if (port->port.flags & ASYNC_CHECK_CD) {
- if (port->status & ISI_DCD) {
- if (!(header & ISI_DCD)) {
- /* Carrier has been lost */
- pr_debug("%s: DCD->low.\n",
- __func__);
- port->status &= ~ISI_DCD;
- tty_hangup(tty);
- }
- } else if (header & ISI_DCD) {
- /* Carrier has been detected */
- pr_debug("%s: DCD->high.\n",
- __func__);
- port->status |= ISI_DCD;
- wake_up_interruptible(&port->port.open_wait);
- }
- } else {
- if (header & ISI_DCD)
- port->status |= ISI_DCD;
- else
- port->status &= ~ISI_DCD;
- }
-
- if (port->port.flags & ASYNC_CTS_FLOW) {
- if (tty->hw_stopped) {
- if (header & ISI_CTS) {
- port->port.tty->hw_stopped = 0;
- /* start tx ing */
- port->status |= (ISI_TXOK
- | ISI_CTS);
- tty_wakeup(tty);
- }
- } else if (!(header & ISI_CTS)) {
- tty->hw_stopped = 1;
- /* stop tx ing */
- port->status &= ~(ISI_TXOK | ISI_CTS);
- }
- } else {
- if (header & ISI_CTS)
- port->status |= ISI_CTS;
- else
- port->status &= ~ISI_CTS;
- }
-
- if (header & ISI_DSR)
- port->status |= ISI_DSR;
- else
- port->status &= ~ISI_DSR;
-
- if (header & ISI_RI)
- port->status |= ISI_RI;
- else
- port->status &= ~ISI_RI;
-
- break;
-
- case 1: /* Received Break !!! */
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (port->port.flags & ASYNC_SAK)
- do_SAK(tty);
- tty_flip_buffer_push(tty);
- break;
-
- case 2: /* Statistics */
- pr_debug("%s: stats!!!\n", __func__);
- break;
-
- default:
- pr_debug("%s: Unknown code in status packet.\n",
- __func__);
- break;
- }
- } else { /* Data Packet */
-
- count = tty_prepare_flip_string(tty, &rp, byte_count & ~1);
- pr_debug("%s: Can rx %d of %d bytes.\n",
- __func__, count, byte_count);
- word_count = count >> 1;
- insw(base, rp, word_count);
- byte_count -= (word_count << 1);
- if (count & 0x0001) {
- tty_insert_flip_char(tty, inw(base) & 0xff,
- TTY_NORMAL);
- byte_count -= 2;
- }
- if (byte_count > 0) {
- pr_debug("%s(0x%lx:%d): Flip buffer overflow! dropping bytes...\n",
- __func__, base, channel + 1);
- /* drain out unread xtra data */
- while (byte_count > 0) {
- inw(base);
- byte_count -= 2;
- }
- }
- tty_flip_buffer_push(tty);
- }
- outw(0x0000, base+0x04); /* enable interrupts */
- spin_unlock(&card->card_lock);
- tty_kref_put(tty);
-
- return IRQ_HANDLED;
-}
-
-static void isicom_config_port(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
- unsigned long baud;
- unsigned long base = card->base;
- u16 channel_setup, channel = port->channel,
- shift_count = card->shift_count;
- unsigned char flow_ctrl;
-
- /* FIXME: Switch to new tty baud API */
- baud = C_BAUD(tty);
- if (baud & CBAUDEX) {
- baud &= ~CBAUDEX;
-
- /* if CBAUDEX bit is on and the baud is set to either 50 or 75
- * then the card is programmed for 57.6Kbps or 115Kbps
- * respectively.
- */
-
- /* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */
- if (baud < 1 || baud > 4)
- tty->termios->c_cflag &= ~CBAUDEX;
- else
- baud += 15;
- }
- if (baud == 15) {
-
- /* the ASYNC_SPD_HI and ASYNC_SPD_VHI options are set
- * by the set_serial_info ioctl ... this is done by
- * the 'setserial' utility.
- */
-
- if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baud++; /* 57.6 Kbps */
- if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baud += 2; /* 115 Kbps */
- if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- baud += 3; /* 230 kbps*/
- if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- baud += 4; /* 460 kbps*/
- }
- if (linuxb_to_isib[baud] == -1) {
- /* hang up */
- drop_dtr(port);
- return;
- } else
- raise_dtr(port);
-
- if (WaitTillCardIsFree(base) == 0) {
- outw(0x8000 | (channel << shift_count) | 0x03, base);
- outw(linuxb_to_isib[baud] << 8 | 0x03, base);
- channel_setup = 0;
- switch (C_CSIZE(tty)) {
- case CS5:
- channel_setup |= ISICOM_CS5;
- break;
- case CS6:
- channel_setup |= ISICOM_CS6;
- break;
- case CS7:
- channel_setup |= ISICOM_CS7;
- break;
- case CS8:
- channel_setup |= ISICOM_CS8;
- break;
- }
-
- if (C_CSTOPB(tty))
- channel_setup |= ISICOM_2SB;
- if (C_PARENB(tty)) {
- channel_setup |= ISICOM_EVPAR;
- if (C_PARODD(tty))
- channel_setup |= ISICOM_ODPAR;
- }
- outw(channel_setup, base);
- InterruptTheCard(base);
- }
- if (C_CLOCAL(tty))
- port->port.flags &= ~ASYNC_CHECK_CD;
- else
- port->port.flags |= ASYNC_CHECK_CD;
-
- /* flow control settings ...*/
- flow_ctrl = 0;
- port->port.flags &= ~ASYNC_CTS_FLOW;
- if (C_CRTSCTS(tty)) {
- port->port.flags |= ASYNC_CTS_FLOW;
- flow_ctrl |= ISICOM_CTSRTS;
- }
- if (I_IXON(tty))
- flow_ctrl |= ISICOM_RESPOND_XONXOFF;
- if (I_IXOFF(tty))
- flow_ctrl |= ISICOM_INITIATE_XONXOFF;
-
- if (WaitTillCardIsFree(base) == 0) {
- outw(0x8000 | (channel << shift_count) | 0x04, base);
- outw(flow_ctrl << 8 | 0x05, base);
- outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base);
- InterruptTheCard(base);
- }
-
- /* rx enabled -> enable port for rx on the card */
- if (C_CREAD(tty)) {
- card->port_status |= (1 << channel);
- outw(card->port_status, base + 0x02);
- }
-}
-
-/* open et all */
-
-static inline void isicom_setup_board(struct isi_board *bp)
-{
- int channel;
- struct isi_port *port;
-
- bp->count++;
- if (!(bp->status & BOARD_INIT)) {
- port = bp->ports;
- for (channel = 0; channel < bp->port_count; channel++, port++)
- drop_dtr_rts(port);
- }
- bp->status |= BOARD_ACTIVE | BOARD_INIT;
-}
-
-/* Activate and thus setup board are protected from races against shutdown
- by the tty_port mutex */
-
-static int isicom_activate(struct tty_port *tport, struct tty_struct *tty)
-{
- struct isi_port *port = container_of(tport, struct isi_port, port);
- struct isi_board *card = port->card;
- unsigned long flags;
-
- if (tty_port_alloc_xmit_buf(tport) < 0)
- return -ENOMEM;
-
- spin_lock_irqsave(&card->card_lock, flags);
- isicom_setup_board(card);
-
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
-
- /* discard any residual data */
- if (WaitTillCardIsFree(card->base) == 0) {
- outw(0x8000 | (port->channel << card->shift_count) | 0x02,
- card->base);
- outw(((ISICOM_KILLTX | ISICOM_KILLRX) << 8) | 0x06, card->base);
- InterruptTheCard(card->base);
- }
- isicom_config_port(tty);
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- return 0;
-}
-
-static int isicom_carrier_raised(struct tty_port *port)
-{
- struct isi_port *ip = container_of(port, struct isi_port, port);
- return (ip->status & ISI_DCD)?1 : 0;
-}
-
-static struct tty_port *isicom_find_port(struct tty_struct *tty)
-{
- struct isi_port *port;
- struct isi_board *card;
- unsigned int board;
- int line = tty->index;
-
- if (line < 0 || line > PORT_COUNT-1)
- return NULL;
- board = BOARD(line);
- card = &isi_card[board];
-
- if (!(card->status & FIRMWARE_LOADED))
- return NULL;
-
- /* open on a port greater than the port count for the card !!! */
- if (line > ((board * 16) + card->port_count - 1))
- return NULL;
-
- port = &isi_ports[line];
- if (isicom_paranoia_check(port, tty->name, "isicom_open"))
- return NULL;
-
- return &port->port;
-}
-
-static int isicom_open(struct tty_struct *tty, struct file *filp)
-{
- struct isi_port *port;
- struct tty_port *tport;
-
- tport = isicom_find_port(tty);
- if (tport == NULL)
- return -ENODEV;
- port = container_of(tport, struct isi_port, port);
-
- tty->driver_data = port;
- return tty_port_open(tport, tty, filp);
-}
-
-/* close et all */
-
-/* card->lock HAS to be held */
-static void isicom_shutdown_port(struct isi_port *port)
-{
- struct isi_board *card = port->card;
-
- if (--card->count < 0) {
- pr_debug("%s: bad board(0x%lx) count %d.\n",
- __func__, card->base, card->count);
- card->count = 0;
- }
- /* last port was closed, shutdown that board too */
- if (!card->count)
- card->status &= BOARD_ACTIVE;
-}
-
-static void isicom_flush_buffer(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
- unsigned long flags;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer"))
- return;
-
- spin_lock_irqsave(&card->card_lock, flags);
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- spin_unlock_irqrestore(&card->card_lock, flags);
-
- tty_wakeup(tty);
-}
-
-static void isicom_shutdown(struct tty_port *port)
-{
- struct isi_port *ip = container_of(port, struct isi_port, port);
- struct isi_board *card = ip->card;
- unsigned long flags;
-
- /* indicate to the card that no more data can be received
- on this port */
- spin_lock_irqsave(&card->card_lock, flags);
- card->port_status &= ~(1 << ip->channel);
- outw(card->port_status, card->base + 0x02);
- isicom_shutdown_port(ip);
- spin_unlock_irqrestore(&card->card_lock, flags);
- tty_port_free_xmit_buf(port);
-}
-
-static void isicom_close(struct tty_struct *tty, struct file *filp)
-{
- struct isi_port *ip = tty->driver_data;
- struct tty_port *port;
-
- if (ip == NULL)
- return;
-
- port = &ip->port;
- if (isicom_paranoia_check(ip, tty->name, "isicom_close"))
- return;
- tty_port_close(port, tty, filp);
-}
-
-/* write et all */
-static int isicom_write(struct tty_struct *tty, const unsigned char *buf,
- int count)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
- unsigned long flags;
- int cnt, total = 0;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_write"))
- return 0;
-
- spin_lock_irqsave(&card->card_lock, flags);
-
- while (1) {
- cnt = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt
- - 1, SERIAL_XMIT_SIZE - port->xmit_head));
- if (cnt <= 0)
- break;
-
- memcpy(port->port.xmit_buf + port->xmit_head, buf, cnt);
- port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE
- - 1);
- port->xmit_cnt += cnt;
- buf += cnt;
- count -= cnt;
- total += cnt;
- }
- if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped)
- port->status |= ISI_TXOK;
- spin_unlock_irqrestore(&card->card_lock, flags);
- return total;
-}
-
-/* put_char et all */
-static int isicom_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
- unsigned long flags;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))
- return 0;
-
- spin_lock_irqsave(&card->card_lock, flags);
- if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
- spin_unlock_irqrestore(&card->card_lock, flags);
- return 0;
- }
-
- port->port.xmit_buf[port->xmit_head++] = ch;
- port->xmit_head &= (SERIAL_XMIT_SIZE - 1);
- port->xmit_cnt++;
- spin_unlock_irqrestore(&card->card_lock, flags);
- return 1;
-}
-
-/* flush_chars et all */
-static void isicom_flush_chars(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars"))
- return;
-
- if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !port->port.xmit_buf)
- return;
-
- /* this tells the transmitter to consider this port for
- data output to the card ... that's the best we can do. */
- port->status |= ISI_TXOK;
-}
-
-/* write_room et all */
-static int isicom_write_room(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
- int free;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_write_room"))
- return 0;
-
- free = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
- if (free < 0)
- free = 0;
- return free;
-}
-
-/* chars_in_buffer et all */
-static int isicom_chars_in_buffer(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
- if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer"))
- return 0;
- return port->xmit_cnt;
-}
-
-/* ioctl et all */
-static int isicom_send_break(struct tty_struct *tty, int length)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
- unsigned long base = card->base;
-
- if (length == -1)
- return -EOPNOTSUPP;
-
- if (!lock_card(card))
- return -EINVAL;
-
- outw(0x8000 | ((port->channel) << (card->shift_count)) | 0x3, base);
- outw((length & 0xff) << 8 | 0x00, base);
- outw((length & 0xff00), base);
- InterruptTheCard(base);
-
- unlock_card(card);
- return 0;
-}
-
-static int isicom_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct isi_port *port = tty->driver_data;
- /* just send the port status */
- u16 status = port->status;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
- return -ENODEV;
-
- return ((status & ISI_RTS) ? TIOCM_RTS : 0) |
- ((status & ISI_DTR) ? TIOCM_DTR : 0) |
- ((status & ISI_DCD) ? TIOCM_CAR : 0) |
- ((status & ISI_DSR) ? TIOCM_DSR : 0) |
- ((status & ISI_CTS) ? TIOCM_CTS : 0) |
- ((status & ISI_RI ) ? TIOCM_RI : 0);
-}
-
-static int isicom_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct isi_port *port = tty->driver_data;
- unsigned long flags;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
- return -ENODEV;
-
- spin_lock_irqsave(&port->card->card_lock, flags);
- if (set & TIOCM_RTS)
- raise_rts(port);
- if (set & TIOCM_DTR)
- raise_dtr(port);
-
- if (clear & TIOCM_RTS)
- drop_rts(port);
- if (clear & TIOCM_DTR)
- drop_dtr(port);
- spin_unlock_irqrestore(&port->card->card_lock, flags);
-
- return 0;
-}
-
-static int isicom_set_serial_info(struct tty_struct *tty,
- struct serial_struct __user *info)
-{
- struct isi_port *port = tty->driver_data;
- struct serial_struct newinfo;
- int reconfig_port;
-
- if (copy_from_user(&newinfo, info, sizeof(newinfo)))
- return -EFAULT;
-
- mutex_lock(&port->port.mutex);
- reconfig_port = ((port->port.flags & ASYNC_SPD_MASK) !=
- (newinfo.flags & ASYNC_SPD_MASK));
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((newinfo.close_delay != port->port.close_delay) ||
- (newinfo.closing_wait != port->port.closing_wait) ||
- ((newinfo.flags & ~ASYNC_USR_MASK) !=
- (port->port.flags & ~ASYNC_USR_MASK))) {
- mutex_unlock(&port->port.mutex);
- return -EPERM;
- }
- port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
- (newinfo.flags & ASYNC_USR_MASK));
- } else {
- port->port.close_delay = newinfo.close_delay;
- port->port.closing_wait = newinfo.closing_wait;
- port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
- (newinfo.flags & ASYNC_FLAGS));
- }
- if (reconfig_port) {
- unsigned long flags;
- spin_lock_irqsave(&port->card->card_lock, flags);
- isicom_config_port(tty);
- spin_unlock_irqrestore(&port->card->card_lock, flags);
- }
- mutex_unlock(&port->port.mutex);
- return 0;
-}
-
-static int isicom_get_serial_info(struct isi_port *port,
- struct serial_struct __user *info)
-{
- struct serial_struct out_info;
-
- mutex_lock(&port->port.mutex);
- memset(&out_info, 0, sizeof(out_info));
-/* out_info.type = ? */
- out_info.line = port - isi_ports;
- out_info.port = port->card->base;
- out_info.irq = port->card->irq;
- out_info.flags = port->port.flags;
-/* out_info.baud_base = ? */
- out_info.close_delay = port->port.close_delay;
- out_info.closing_wait = port->port.closing_wait;
- mutex_unlock(&port->port.mutex);
- if (copy_to_user(info, &out_info, sizeof(out_info)))
- return -EFAULT;
- return 0;
-}
-
-static int isicom_ioctl(struct tty_struct *tty, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct isi_port *port = tty->driver_data;
- void __user *argp = (void __user *)arg;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_ioctl"))
- return -ENODEV;
-
- switch (cmd) {
- case TIOCGSERIAL:
- return isicom_get_serial_info(port, argp);
-
- case TIOCSSERIAL:
- return isicom_set_serial_info(tty, argp);
-
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-/* set_termios et all */
-static void isicom_set_termios(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct isi_port *port = tty->driver_data;
- unsigned long flags;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_set_termios"))
- return;
-
- if (tty->termios->c_cflag == old_termios->c_cflag &&
- tty->termios->c_iflag == old_termios->c_iflag)
- return;
-
- spin_lock_irqsave(&port->card->card_lock, flags);
- isicom_config_port(tty);
- spin_unlock_irqrestore(&port->card->card_lock, flags);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- isicom_start(tty);
- }
-}
-
-/* throttle et all */
-static void isicom_throttle(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_throttle"))
- return;
-
- /* tell the card that this port cannot handle any more data for now */
- card->port_status &= ~(1 << port->channel);
- outw(card->port_status, card->base + 0x02);
-}
-
-/* unthrottle et all */
-static void isicom_unthrottle(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
- struct isi_board *card = port->card;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle"))
- return;
-
- /* tell the card that this port is ready to accept more data */
- card->port_status |= (1 << port->channel);
- outw(card->port_status, card->base + 0x02);
-}
-
-/* stop et all */
-static void isicom_stop(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_stop"))
- return;
-
- /* this tells the transmitter not to consider this port for
- data output to the card. */
- port->status &= ~ISI_TXOK;
-}
-
-/* start et all */
-static void isicom_start(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_start"))
- return;
-
- /* this tells the transmitter to consider this port for
- data output to the card. */
- port->status |= ISI_TXOK;
-}
-
-static void isicom_hangup(struct tty_struct *tty)
-{
- struct isi_port *port = tty->driver_data;
-
- if (isicom_paranoia_check(port, tty->name, "isicom_hangup"))
- return;
- tty_port_hangup(&port->port);
-}
-
-
-/*
- * Driver init and deinit functions
- */
-
-static const struct tty_operations isicom_ops = {
- .open = isicom_open,
- .close = isicom_close,
- .write = isicom_write,
- .put_char = isicom_put_char,
- .flush_chars = isicom_flush_chars,
- .write_room = isicom_write_room,
- .chars_in_buffer = isicom_chars_in_buffer,
- .ioctl = isicom_ioctl,
- .set_termios = isicom_set_termios,
- .throttle = isicom_throttle,
- .unthrottle = isicom_unthrottle,
- .stop = isicom_stop,
- .start = isicom_start,
- .hangup = isicom_hangup,
- .flush_buffer = isicom_flush_buffer,
- .tiocmget = isicom_tiocmget,
- .tiocmset = isicom_tiocmset,
- .break_ctl = isicom_send_break,
-};
-
-static const struct tty_port_operations isicom_port_ops = {
- .carrier_raised = isicom_carrier_raised,
- .dtr_rts = isicom_dtr_rts,
- .activate = isicom_activate,
- .shutdown = isicom_shutdown,
-};
-
-static int __devinit reset_card(struct pci_dev *pdev,
- const unsigned int card, unsigned int *signature)
-{
- struct isi_board *board = pci_get_drvdata(pdev);
- unsigned long base = board->base;
- unsigned int sig, portcount = 0;
- int retval = 0;
-
- dev_dbg(&pdev->dev, "ISILoad:Resetting Card%d at 0x%lx\n", card + 1,
- base);
-
- inw(base + 0x8);
-
- msleep(10);
-
- outw(0, base + 0x8); /* Reset */
-
- msleep(1000);
-
- sig = inw(base + 0x4) & 0xff;
-
- if (sig != 0xa5 && sig != 0xbb && sig != 0xcc && sig != 0xdd &&
- sig != 0xee) {
- dev_warn(&pdev->dev, "ISILoad:Card%u reset failure (Possible "
- "bad I/O Port Address 0x%lx).\n", card + 1, base);
- dev_dbg(&pdev->dev, "Sig=0x%x\n", sig);
- retval = -EIO;
- goto end;
- }
-
- msleep(10);
-
- portcount = inw(base + 0x2);
- if (!(inw(base + 0xe) & 0x1) || (portcount != 0 && portcount != 4 &&
- portcount != 8 && portcount != 16)) {
- dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure.\n",
- card + 1);
- retval = -EIO;
- goto end;
- }
-
- switch (sig) {
- case 0xa5:
- case 0xbb:
- case 0xdd:
- board->port_count = (portcount == 4) ? 4 : 8;
- board->shift_count = 12;
- break;
- case 0xcc:
- case 0xee:
- board->port_count = 16;
- board->shift_count = 11;
- break;
- }
- dev_info(&pdev->dev, "-Done\n");
- *signature = sig;
-
-end:
- return retval;
-}
-
-static int __devinit load_firmware(struct pci_dev *pdev,
- const unsigned int index, const unsigned int signature)
-{
- struct isi_board *board = pci_get_drvdata(pdev);
- const struct firmware *fw;
- unsigned long base = board->base;
- unsigned int a;
- u16 word_count, status;
- int retval = -EIO;
- char *name;
- u8 *data;
-
- struct stframe {
- u16 addr;
- u16 count;
- u8 data[0];
- } *frame;
-
- switch (signature) {
- case 0xa5:
- name = "isi608.bin";
- break;
- case 0xbb:
- name = "isi608em.bin";
- break;
- case 0xcc:
- name = "isi616em.bin";
- break;
- case 0xdd:
- name = "isi4608.bin";
- break;
- case 0xee:
- name = "isi4616.bin";
- break;
- default:
- dev_err(&pdev->dev, "Unknown signature.\n");
- goto end;
- }
-
- retval = request_firmware(&fw, name, &pdev->dev);
- if (retval)
- goto end;
-
- retval = -EIO;
-
- for (frame = (struct stframe *)fw->data;
- frame < (struct stframe *)(fw->data + fw->size);
- frame = (struct stframe *)((u8 *)(frame + 1) +
- frame->count)) {
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- outw(0xf0, base); /* start upload sequence */
- outw(0x00, base);
- outw(frame->addr, base); /* lsb of address */
-
- word_count = frame->count / 2 + frame->count % 2;
- outw(word_count, base);
- InterruptTheCard(base);
-
- udelay(100); /* 0x2f */
-
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- status = inw(base + 0x4);
- if (status != 0) {
- dev_warn(&pdev->dev, "Card%d rejected load header:\n"
- "Address:0x%x\n"
- "Count:0x%x\n"
- "Status:0x%x\n",
- index + 1, frame->addr, frame->count, status);
- goto errrelfw;
- }
- outsw(base, frame->data, word_count);
-
- InterruptTheCard(base);
-
- udelay(50); /* 0x0f */
-
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- status = inw(base + 0x4);
- if (status != 0) {
- dev_err(&pdev->dev, "Card%d got out of sync.Card "
- "Status:0x%x\n", index + 1, status);
- goto errrelfw;
- }
- }
-
-/* XXX: should we test it by reading it back and comparing with original like
- * in load firmware package? */
- for (frame = (struct stframe *)fw->data;
- frame < (struct stframe *)(fw->data + fw->size);
- frame = (struct stframe *)((u8 *)(frame + 1) +
- frame->count)) {
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- outw(0xf1, base); /* start download sequence */
- outw(0x00, base);
- outw(frame->addr, base); /* lsb of address */
-
- word_count = (frame->count >> 1) + frame->count % 2;
- outw(word_count + 1, base);
- InterruptTheCard(base);
-
- udelay(50); /* 0xf */
-
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- status = inw(base + 0x4);
- if (status != 0) {
- dev_warn(&pdev->dev, "Card%d rejected verify header:\n"
- "Address:0x%x\n"
- "Count:0x%x\n"
- "Status: 0x%x\n",
- index + 1, frame->addr, frame->count, status);
- goto errrelfw;
- }
-
- data = kmalloc(word_count * 2, GFP_KERNEL);
- if (data == NULL) {
- dev_err(&pdev->dev, "Card%d, firmware upload "
- "failed, not enough memory\n", index + 1);
- goto errrelfw;
- }
- inw(base);
- insw(base, data, word_count);
- InterruptTheCard(base);
-
- for (a = 0; a < frame->count; a++)
- if (data[a] != frame->data[a]) {
- kfree(data);
- dev_err(&pdev->dev, "Card%d, firmware upload "
- "failed\n", index + 1);
- goto errrelfw;
- }
- kfree(data);
-
- udelay(50); /* 0xf */
-
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- status = inw(base + 0x4);
- if (status != 0) {
- dev_err(&pdev->dev, "Card%d verify got out of sync. "
- "Card Status:0x%x\n", index + 1, status);
- goto errrelfw;
- }
- }
-
- /* xfer ctrl */
- if (WaitTillCardIsFree(base))
- goto errrelfw;
-
- outw(0xf2, base);
- outw(0x800, base);
- outw(0x0, base);
- outw(0x0, base);
- InterruptTheCard(base);
- outw(0x0, base + 0x4); /* for ISI4608 cards */
-
- board->status |= FIRMWARE_LOADED;
- retval = 0;
-
-errrelfw:
- release_firmware(fw);
-end:
- return retval;
-}
-
-/*
- * Insmod can set static symbols so keep these static
- */
-static unsigned int card_count;
-
-static int __devinit isicom_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- unsigned int uninitialized_var(signature), index;
- int retval = -EPERM;
- struct isi_board *board = NULL;
-
- if (card_count >= BOARD_COUNT)
- goto err;
-
- retval = pci_enable_device(pdev);
- if (retval) {
- dev_err(&pdev->dev, "failed to enable\n");
- goto err;
- }
-
- dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device);
-
- /* allot the first empty slot in the array */
- for (index = 0; index < BOARD_COUNT; index++) {
- if (isi_card[index].base == 0) {
- board = &isi_card[index];
- break;
- }
- }
- if (index == BOARD_COUNT) {
- retval = -ENODEV;
- goto err_disable;
- }
-
- board->index = index;
- board->base = pci_resource_start(pdev, 3);
- board->irq = pdev->irq;
- card_count++;
-
- pci_set_drvdata(pdev, board);
-
- retval = pci_request_region(pdev, 3, ISICOM_NAME);
- if (retval) {
- dev_err(&pdev->dev, "I/O Region 0x%lx-0x%lx is busy. Card%d "
- "will be disabled.\n", board->base, board->base + 15,
- index + 1);
- retval = -EBUSY;
- goto errdec;
- }
-
- retval = request_irq(board->irq, isicom_interrupt,
- IRQF_SHARED | IRQF_DISABLED, ISICOM_NAME, board);
- if (retval < 0) {
- dev_err(&pdev->dev, "Could not install handler at Irq %d. "
- "Card%d will be disabled.\n", board->irq, index + 1);
- goto errunrr;
- }
-
- retval = reset_card(pdev, index, &signature);
- if (retval < 0)
- goto errunri;
-
- retval = load_firmware(pdev, index, signature);
- if (retval < 0)
- goto errunri;
-
- for (index = 0; index < board->port_count; index++)
- tty_register_device(isicom_normal, board->index * 16 + index,
- &pdev->dev);
-
- return 0;
-
-errunri:
- free_irq(board->irq, board);
-errunrr:
- pci_release_region(pdev, 3);
-errdec:
- board->base = 0;
- card_count--;
-err_disable:
- pci_disable_device(pdev);
-err:
- return retval;
-}
-
-static void __devexit isicom_remove(struct pci_dev *pdev)
-{
- struct isi_board *board = pci_get_drvdata(pdev);
- unsigned int i;
-
- for (i = 0; i < board->port_count; i++)
- tty_unregister_device(isicom_normal, board->index * 16 + i);
-
- free_irq(board->irq, board);
- pci_release_region(pdev, 3);
- board->base = 0;
- card_count--;
- pci_disable_device(pdev);
-}
-
-static int __init isicom_init(void)
-{
- int retval, idx, channel;
- struct isi_port *port;
-
- for (idx = 0; idx < BOARD_COUNT; idx++) {
- port = &isi_ports[idx * 16];
- isi_card[idx].ports = port;
- spin_lock_init(&isi_card[idx].card_lock);
- for (channel = 0; channel < 16; channel++, port++) {
- tty_port_init(&port->port);
- port->port.ops = &isicom_port_ops;
- port->magic = ISICOM_MAGIC;
- port->card = &isi_card[idx];
- port->channel = channel;
- port->port.close_delay = 50 * HZ/100;
- port->port.closing_wait = 3000 * HZ/100;
- port->status = 0;
- /* . . . */
- }
- isi_card[idx].base = 0;
- isi_card[idx].irq = 0;
- }
-
- /* tty driver structure initialization */
- isicom_normal = alloc_tty_driver(PORT_COUNT);
- if (!isicom_normal) {
- retval = -ENOMEM;
- goto error;
- }
-
- isicom_normal->owner = THIS_MODULE;
- isicom_normal->name = "ttyM";
- isicom_normal->major = ISICOM_NMAJOR;
- isicom_normal->minor_start = 0;
- isicom_normal->type = TTY_DRIVER_TYPE_SERIAL;
- isicom_normal->subtype = SERIAL_TYPE_NORMAL;
- isicom_normal->init_termios = tty_std_termios;
- isicom_normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL |
- CLOCAL;
- isicom_normal->flags = TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK;
- tty_set_operations(isicom_normal, &isicom_ops);
-
- retval = tty_register_driver(isicom_normal);
- if (retval) {
- pr_debug("Couldn't register the dialin driver\n");
- goto err_puttty;
- }
-
- retval = pci_register_driver(&isicom_driver);
- if (retval < 0) {
- pr_err("Unable to register pci driver.\n");
- goto err_unrtty;
- }
-
- mod_timer(&tx, jiffies + 1);
-
- return 0;
-err_unrtty:
- tty_unregister_driver(isicom_normal);
-err_puttty:
- put_tty_driver(isicom_normal);
-error:
- return retval;
-}
-
-static void __exit isicom_exit(void)
-{
- del_timer_sync(&tx);
-
- pci_unregister_driver(&isicom_driver);
- tty_unregister_driver(isicom_normal);
- put_tty_driver(isicom_normal);
-}
-
-module_init(isicom_init);
-module_exit(isicom_exit);
-
-MODULE_AUTHOR("MultiTech");
-MODULE_DESCRIPTION("Driver for the ISI series of cards by MultiTech");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE("isi608.bin");
-MODULE_FIRMWARE("isi608em.bin");
-MODULE_FIRMWARE("isi616em.bin");
-MODULE_FIRMWARE("isi4608.bin");
-MODULE_FIRMWARE("isi4616.bin");
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
deleted file mode 100644
index 7c6de4c9245..00000000000
--- a/drivers/char/istallion.c
+++ /dev/null
@@ -1,4507 +0,0 @@
-/*****************************************************************************/
-
-/*
- * istallion.c -- stallion intelligent multiport serial driver.
- *
- * Copyright (C) 1996-1999 Stallion Technologies
- * Copyright (C) 1994-1996 Greg Ungerer.
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-/*****************************************************************************/
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/seq_file.h>
-#include <linux/cdk.h>
-#include <linux/comstats.h>
-#include <linux/istallion.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/wait.h>
-#include <linux/eisa.h>
-#include <linux/ctype.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include <linux/pci.h>
-
-/*****************************************************************************/
-
-/*
- * Define different board types. Not all of the following board types
- * are supported by this driver. But I will use the standard "assigned"
- * board numbers. Currently supported boards are abbreviated as:
- * ECP = EasyConnection 8/64, ONB = ONboard, BBY = Brumby and
- * STAL = Stallion.
- */
-#define BRD_UNKNOWN 0
-#define BRD_STALLION 1
-#define BRD_BRUMBY4 2
-#define BRD_ONBOARD2 3
-#define BRD_ONBOARD 4
-#define BRD_ONBOARDE 7
-#define BRD_ECP 23
-#define BRD_ECPE 24
-#define BRD_ECPMC 25
-#define BRD_ECPPCI 29
-
-#define BRD_BRUMBY BRD_BRUMBY4
-
-/*
- * Define a configuration structure to hold the board configuration.
- * Need to set this up in the code (for now) with the boards that are
- * to be configured into the system. This is what needs to be modified
- * when adding/removing/modifying boards. Each line entry in the
- * stli_brdconf[] array is a board. Each line contains io/irq/memory
- * ranges for that board (as well as what type of board it is).
- * Some examples:
- * { BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },
- * This line will configure an EasyConnection 8/64 at io address 2a0,
- * and shared memory address of cc000. Multiple EasyConnection 8/64
- * boards can share the same shared memory address space. No interrupt
- * is required for this board type.
- * Another example:
- * { BRD_ECPE, 0x5000, 0, 0x80000000, 0, 0 },
- * This line will configure an EasyConnection 8/64 EISA in slot 5 and
- * shared memory address of 0x80000000 (2 GByte). Multiple
- * EasyConnection 8/64 EISA boards can share the same shared memory
- * address space. No interrupt is required for this board type.
- * Another example:
- * { BRD_ONBOARD, 0x240, 0, 0xd0000, 0, 0 },
- * This line will configure an ONboard (ISA type) at io address 240,
- * and shared memory address of d0000. Multiple ONboards can share
- * the same shared memory address space. No interrupt required.
- * Another example:
- * { BRD_BRUMBY4, 0x360, 0, 0xc8000, 0, 0 },
- * This line will configure a Brumby board (any number of ports!) at
- * io address 360 and shared memory address of c8000. All Brumby boards
- * configured into a system must have their own separate io and memory
- * addresses. No interrupt is required.
- * Another example:
- * { BRD_STALLION, 0x330, 0, 0xd0000, 0, 0 },
- * This line will configure an original Stallion board at io address 330
- * and shared memory address d0000 (this would only be valid for a "V4.0"
- * or Rev.O Stallion board). All Stallion boards configured into the
- * system must have their own separate io and memory addresses. No
- * interrupt is required.
- */
-
-struct stlconf {
- int brdtype;
- int ioaddr1;
- int ioaddr2;
- unsigned long memaddr;
- int irq;
- int irqtype;
-};
-
-static unsigned int stli_nrbrds;
-
-/* stli_lock must NOT be taken holding brd_lock */
-static spinlock_t stli_lock; /* TTY logic lock */
-static spinlock_t brd_lock; /* Board logic lock */
-
-/*
- * There is some experimental EISA board detection code in this driver.
- * By default it is disabled, but for those that want to try it out,
- * then set the define below to be 1.
- */
-#define STLI_EISAPROBE 0
-
-/*****************************************************************************/
-
-/*
- * Define some important driver characteristics. Device major numbers
- * allocated as per Linux Device Registry.
- */
-#ifndef STL_SIOMEMMAJOR
-#define STL_SIOMEMMAJOR 28
-#endif
-#ifndef STL_SERIALMAJOR
-#define STL_SERIALMAJOR 24
-#endif
-#ifndef STL_CALLOUTMAJOR
-#define STL_CALLOUTMAJOR 25
-#endif
-
-/*****************************************************************************/
-
-/*
- * Define our local driver identity first. Set up stuff to deal with
- * all the local structures required by a serial tty driver.
- */
-static char *stli_drvtitle = "Stallion Intelligent Multiport Serial Driver";
-static char *stli_drvname = "istallion";
-static char *stli_drvversion = "5.6.0";
-static char *stli_serialname = "ttyE";
-
-static struct tty_driver *stli_serial;
-static const struct tty_port_operations stli_port_ops;
-
-#define STLI_TXBUFSIZE 4096
-
-/*
- * Use a fast local buffer for cooked characters. Typically a whole
- * bunch of cooked characters come in for a port, 1 at a time. So we
- * save those up into a local buffer, then write out the whole lot
- * with a large memcpy. Just use 1 buffer for all ports, since its
- * use it is only need for short periods of time by each port.
- */
-static char *stli_txcookbuf;
-static int stli_txcooksize;
-static int stli_txcookrealsize;
-static struct tty_struct *stli_txcooktty;
-
-/*
- * Define a local default termios struct. All ports will be created
- * with this termios initially. Basically all it defines is a raw port
- * at 9600 baud, 8 data bits, no parity, 1 stop bit.
- */
-static struct ktermios stli_deftermios = {
- .c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL),
- .c_cc = INIT_C_CC,
- .c_ispeed = 9600,
- .c_ospeed = 9600,
-};
-
-/*
- * Define global stats structures. Not used often, and can be
- * re-used for each stats call.
- */
-static comstats_t stli_comstats;
-static combrd_t stli_brdstats;
-static struct asystats stli_cdkstats;
-
-/*****************************************************************************/
-
-static DEFINE_MUTEX(stli_brdslock);
-static struct stlibrd *stli_brds[STL_MAXBRDS];
-
-static int stli_shared;
-
-/*
- * Per board state flags. Used with the state field of the board struct.
- * Not really much here... All we need to do is keep track of whether
- * the board has been detected, and whether it is actually running a slave
- * or not.
- */
-#define BST_FOUND 0
-#define BST_STARTED 1
-#define BST_PROBED 2
-
-/*
- * Define the set of port state flags. These are marked for internal
- * state purposes only, usually to do with the state of communications
- * with the slave. Most of them need to be updated atomically, so always
- * use the bit setting operations (unless protected by cli/sti).
- */
-#define ST_OPENING 2
-#define ST_CLOSING 3
-#define ST_CMDING 4
-#define ST_TXBUSY 5
-#define ST_RXING 6
-#define ST_DOFLUSHRX 7
-#define ST_DOFLUSHTX 8
-#define ST_DOSIGS 9
-#define ST_RXSTOP 10
-#define ST_GETSIGS 11
-
-/*
- * Define an array of board names as printable strings. Handy for
- * referencing boards when printing trace and stuff.
- */
-static char *stli_brdnames[] = {
- "Unknown",
- "Stallion",
- "Brumby",
- "ONboard-MC",
- "ONboard",
- "Brumby",
- "Brumby",
- "ONboard-EI",
- NULL,
- "ONboard",
- "ONboard-MC",
- "ONboard-MC",
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- "EasyIO",
- "EC8/32-AT",
- "EC8/32-MC",
- "EC8/64-AT",
- "EC8/64-EI",
- "EC8/64-MC",
- "EC8/32-PCI",
- "EC8/64-PCI",
- "EasyIO-PCI",
- "EC/RA-PCI",
-};
-
-/*****************************************************************************/
-
-/*
- * Define some string labels for arguments passed from the module
- * load line. These allow for easy board definitions, and easy
- * modification of the io, memory and irq resoucres.
- */
-
-static char *board0[8];
-static char *board1[8];
-static char *board2[8];
-static char *board3[8];
-
-static char **stli_brdsp[] = {
- (char **) &board0,
- (char **) &board1,
- (char **) &board2,
- (char **) &board3
-};
-
-/*
- * Define a set of common board names, and types. This is used to
- * parse any module arguments.
- */
-
-static struct stlibrdtype {
- char *name;
- int type;
-} stli_brdstr[] = {
- { "stallion", BRD_STALLION },
- { "1", BRD_STALLION },
- { "brumby", BRD_BRUMBY },
- { "brumby4", BRD_BRUMBY },
- { "brumby/4", BRD_BRUMBY },
- { "brumby-4", BRD_BRUMBY },
- { "brumby8", BRD_BRUMBY },
- { "brumby/8", BRD_BRUMBY },
- { "brumby-8", BRD_BRUMBY },
- { "brumby16", BRD_BRUMBY },
- { "brumby/16", BRD_BRUMBY },
- { "brumby-16", BRD_BRUMBY },
- { "2", BRD_BRUMBY },
- { "onboard2", BRD_ONBOARD2 },
- { "onboard-2", BRD_ONBOARD2 },
- { "onboard/2", BRD_ONBOARD2 },
- { "onboard-mc", BRD_ONBOARD2 },
- { "onboard/mc", BRD_ONBOARD2 },
- { "onboard-mca", BRD_ONBOARD2 },
- { "onboard/mca", BRD_ONBOARD2 },
- { "3", BRD_ONBOARD2 },
- { "onboard", BRD_ONBOARD },
- { "onboardat", BRD_ONBOARD },
- { "4", BRD_ONBOARD },
- { "onboarde", BRD_ONBOARDE },
- { "onboard-e", BRD_ONBOARDE },
- { "onboard/e", BRD_ONBOARDE },
- { "onboard-ei", BRD_ONBOARDE },
- { "onboard/ei", BRD_ONBOARDE },
- { "7", BRD_ONBOARDE },
- { "ecp", BRD_ECP },
- { "ecpat", BRD_ECP },
- { "ec8/64", BRD_ECP },
- { "ec8/64-at", BRD_ECP },
- { "ec8/64-isa", BRD_ECP },
- { "23", BRD_ECP },
- { "ecpe", BRD_ECPE },
- { "ecpei", BRD_ECPE },
- { "ec8/64-e", BRD_ECPE },
- { "ec8/64-ei", BRD_ECPE },
- { "24", BRD_ECPE },
- { "ecpmc", BRD_ECPMC },
- { "ec8/64-mc", BRD_ECPMC },
- { "ec8/64-mca", BRD_ECPMC },
- { "25", BRD_ECPMC },
- { "ecppci", BRD_ECPPCI },
- { "ec/ra", BRD_ECPPCI },
- { "ec/ra-pc", BRD_ECPPCI },
- { "ec/ra-pci", BRD_ECPPCI },
- { "29", BRD_ECPPCI },
-};
-
-/*
- * Define the module agruments.
- */
-MODULE_AUTHOR("Greg Ungerer");
-MODULE_DESCRIPTION("Stallion Intelligent Multiport Serial Driver");
-MODULE_LICENSE("GPL");
-
-
-module_param_array(board0, charp, NULL, 0);
-MODULE_PARM_DESC(board0, "Board 0 config -> name[,ioaddr[,memaddr]");
-module_param_array(board1, charp, NULL, 0);
-MODULE_PARM_DESC(board1, "Board 1 config -> name[,ioaddr[,memaddr]");
-module_param_array(board2, charp, NULL, 0);
-MODULE_PARM_DESC(board2, "Board 2 config -> name[,ioaddr[,memaddr]");
-module_param_array(board3, charp, NULL, 0);
-MODULE_PARM_DESC(board3, "Board 3 config -> name[,ioaddr[,memaddr]");
-
-#if STLI_EISAPROBE != 0
-/*
- * Set up a default memory address table for EISA board probing.
- * The default addresses are all bellow 1Mbyte, which has to be the
- * case anyway. They should be safe, since we only read values from
- * them, and interrupts are disabled while we do it. If the higher
- * memory support is compiled in then we also try probing around
- * the 1Gb, 2Gb and 3Gb areas as well...
- */
-static unsigned long stli_eisamemprobeaddrs[] = {
- 0xc0000, 0xd0000, 0xe0000, 0xf0000,
- 0x80000000, 0x80010000, 0x80020000, 0x80030000,
- 0x40000000, 0x40010000, 0x40020000, 0x40030000,
- 0xc0000000, 0xc0010000, 0xc0020000, 0xc0030000,
- 0xff000000, 0xff010000, 0xff020000, 0xff030000,
-};
-
-static int stli_eisamempsize = ARRAY_SIZE(stli_eisamemprobeaddrs);
-#endif
-
-/*
- * Define the Stallion PCI vendor and device IDs.
- */
-#ifndef PCI_DEVICE_ID_ECRA
-#define PCI_DEVICE_ID_ECRA 0x0004
-#endif
-
-static struct pci_device_id istallion_pci_tbl[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECRA), },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, istallion_pci_tbl);
-
-static struct pci_driver stli_pcidriver;
-
-/*****************************************************************************/
-
-/*
- * Hardware configuration info for ECP boards. These defines apply
- * to the directly accessible io ports of the ECP. There is a set of
- * defines for each ECP board type, ISA, EISA, MCA and PCI.
- */
-#define ECP_IOSIZE 4
-
-#define ECP_MEMSIZE (128 * 1024)
-#define ECP_PCIMEMSIZE (256 * 1024)
-
-#define ECP_ATPAGESIZE (4 * 1024)
-#define ECP_MCPAGESIZE (4 * 1024)
-#define ECP_EIPAGESIZE (64 * 1024)
-#define ECP_PCIPAGESIZE (64 * 1024)
-
-#define STL_EISAID 0x8c4e
-
-/*
- * Important defines for the ISA class of ECP board.
- */
-#define ECP_ATIREG 0
-#define ECP_ATCONFR 1
-#define ECP_ATMEMAR 2
-#define ECP_ATMEMPR 3
-#define ECP_ATSTOP 0x1
-#define ECP_ATINTENAB 0x10
-#define ECP_ATENABLE 0x20
-#define ECP_ATDISABLE 0x00
-#define ECP_ATADDRMASK 0x3f000
-#define ECP_ATADDRSHFT 12
-
-/*
- * Important defines for the EISA class of ECP board.
- */
-#define ECP_EIIREG 0
-#define ECP_EIMEMARL 1
-#define ECP_EICONFR 2
-#define ECP_EIMEMARH 3
-#define ECP_EIENABLE 0x1
-#define ECP_EIDISABLE 0x0
-#define ECP_EISTOP 0x4
-#define ECP_EIEDGE 0x00
-#define ECP_EILEVEL 0x80
-#define ECP_EIADDRMASKL 0x00ff0000
-#define ECP_EIADDRSHFTL 16
-#define ECP_EIADDRMASKH 0xff000000
-#define ECP_EIADDRSHFTH 24
-#define ECP_EIBRDENAB 0xc84
-
-#define ECP_EISAID 0x4
-
-/*
- * Important defines for the Micro-channel class of ECP board.
- * (It has a lot in common with the ISA boards.)
- */
-#define ECP_MCIREG 0
-#define ECP_MCCONFR 1
-#define ECP_MCSTOP 0x20
-#define ECP_MCENABLE 0x80
-#define ECP_MCDISABLE 0x00
-
-/*
- * Important defines for the PCI class of ECP board.
- * (It has a lot in common with the other ECP boards.)
- */
-#define ECP_PCIIREG 0
-#define ECP_PCICONFR 1
-#define ECP_PCISTOP 0x01
-
-/*
- * Hardware configuration info for ONboard and Brumby boards. These
- * defines apply to the directly accessible io ports of these boards.
- */
-#define ONB_IOSIZE 16
-#define ONB_MEMSIZE (64 * 1024)
-#define ONB_ATPAGESIZE (64 * 1024)
-#define ONB_MCPAGESIZE (64 * 1024)
-#define ONB_EIMEMSIZE (128 * 1024)
-#define ONB_EIPAGESIZE (64 * 1024)
-
-/*
- * Important defines for the ISA class of ONboard board.
- */
-#define ONB_ATIREG 0
-#define ONB_ATMEMAR 1
-#define ONB_ATCONFR 2
-#define ONB_ATSTOP 0x4
-#define ONB_ATENABLE 0x01
-#define ONB_ATDISABLE 0x00
-#define ONB_ATADDRMASK 0xff0000
-#define ONB_ATADDRSHFT 16
-
-#define ONB_MEMENABLO 0
-#define ONB_MEMENABHI 0x02
-
-/*
- * Important defines for the EISA class of ONboard board.
- */
-#define ONB_EIIREG 0
-#define ONB_EIMEMARL 1
-#define ONB_EICONFR 2
-#define ONB_EIMEMARH 3
-#define ONB_EIENABLE 0x1
-#define ONB_EIDISABLE 0x0
-#define ONB_EISTOP 0x4
-#define ONB_EIEDGE 0x00
-#define ONB_EILEVEL 0x80
-#define ONB_EIADDRMASKL 0x00ff0000
-#define ONB_EIADDRSHFTL 16
-#define ONB_EIADDRMASKH 0xff000000
-#define ONB_EIADDRSHFTH 24
-#define ONB_EIBRDENAB 0xc84
-
-#define ONB_EISAID 0x1
-
-/*
- * Important defines for the Brumby boards. They are pretty simple,
- * there is not much that is programmably configurable.
- */
-#define BBY_IOSIZE 16
-#define BBY_MEMSIZE (64 * 1024)
-#define BBY_PAGESIZE (16 * 1024)
-
-#define BBY_ATIREG 0
-#define BBY_ATCONFR 1
-#define BBY_ATSTOP 0x4
-
-/*
- * Important defines for the Stallion boards. They are pretty simple,
- * there is not much that is programmably configurable.
- */
-#define STAL_IOSIZE 16
-#define STAL_MEMSIZE (64 * 1024)
-#define STAL_PAGESIZE (64 * 1024)
-
-/*
- * Define the set of status register values for EasyConnection panels.
- * The signature will return with the status value for each panel. From
- * this we can determine what is attached to the board - before we have
- * actually down loaded any code to it.
- */
-#define ECH_PNLSTATUS 2
-#define ECH_PNL16PORT 0x20
-#define ECH_PNLIDMASK 0x07
-#define ECH_PNLXPID 0x40
-#define ECH_PNLINTRPEND 0x80
-
-/*
- * Define some macros to do things to the board. Even those these boards
- * are somewhat related there is often significantly different ways of
- * doing some operation on it (like enable, paging, reset, etc). So each
- * board class has a set of functions which do the commonly required
- * operations. The macros below basically just call these functions,
- * generally checking for a NULL function - which means that the board
- * needs nothing done to it to achieve this operation!
- */
-#define EBRDINIT(brdp) \
- if (brdp->init != NULL) \
- (* brdp->init)(brdp)
-
-#define EBRDENABLE(brdp) \
- if (brdp->enable != NULL) \
- (* brdp->enable)(brdp);
-
-#define EBRDDISABLE(brdp) \
- if (brdp->disable != NULL) \
- (* brdp->disable)(brdp);
-
-#define EBRDINTR(brdp) \
- if (brdp->intr != NULL) \
- (* brdp->intr)(brdp);
-
-#define EBRDRESET(brdp) \
- if (brdp->reset != NULL) \
- (* brdp->reset)(brdp);
-
-#define EBRDGETMEMPTR(brdp,offset) \
- (* brdp->getmemptr)(brdp, offset, __LINE__)
-
-/*
- * Define the maximal baud rate, and the default baud base for ports.
- */
-#define STL_MAXBAUD 460800
-#define STL_BAUDBASE 115200
-#define STL_CLOSEDELAY (5 * HZ / 10)
-
-/*****************************************************************************/
-
-/*
- * Define macros to extract a brd or port number from a minor number.
- */
-#define MINOR2BRD(min) (((min) & 0xc0) >> 6)
-#define MINOR2PORT(min) ((min) & 0x3f)
-
-/*****************************************************************************/
-
-/*
- * Prototype all functions in this driver!
- */
-
-static int stli_parsebrd(struct stlconf *confp, char **argp);
-static int stli_open(struct tty_struct *tty, struct file *filp);
-static void stli_close(struct tty_struct *tty, struct file *filp);
-static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int stli_putchar(struct tty_struct *tty, unsigned char ch);
-static void stli_flushchars(struct tty_struct *tty);
-static int stli_writeroom(struct tty_struct *tty);
-static int stli_charsinbuffer(struct tty_struct *tty);
-static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
-static void stli_settermios(struct tty_struct *tty, struct ktermios *old);
-static void stli_throttle(struct tty_struct *tty);
-static void stli_unthrottle(struct tty_struct *tty);
-static void stli_stop(struct tty_struct *tty);
-static void stli_start(struct tty_struct *tty);
-static void stli_flushbuffer(struct tty_struct *tty);
-static int stli_breakctl(struct tty_struct *tty, int state);
-static void stli_waituntilsent(struct tty_struct *tty, int timeout);
-static void stli_sendxchar(struct tty_struct *tty, char ch);
-static void stli_hangup(struct tty_struct *tty);
-
-static int stli_brdinit(struct stlibrd *brdp);
-static int stli_startbrd(struct stlibrd *brdp);
-static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp);
-static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp);
-static long stli_memioctl(struct file *fp, unsigned int cmd, unsigned long arg);
-static void stli_brdpoll(struct stlibrd *brdp, cdkhdr_t __iomem *hdrp);
-static void stli_poll(unsigned long arg);
-static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp);
-static int stli_initopen(struct tty_struct *tty, struct stlibrd *brdp, struct stliport *portp);
-static int stli_rawopen(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait);
-static int stli_rawclose(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait);
-static int stli_setport(struct tty_struct *tty);
-static int stli_cmdwait(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback);
-static void stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback);
-static void __stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback);
-static void stli_dodelaycmd(struct stliport *portp, cdkctrl_t __iomem *cp);
-static void stli_mkasyport(struct tty_struct *tty, struct stliport *portp, asyport_t *pp, struct ktermios *tiosp);
-static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts);
-static long stli_mktiocm(unsigned long sigvalue);
-static void stli_read(struct stlibrd *brdp, struct stliport *portp);
-static int stli_getserial(struct stliport *portp, struct serial_struct __user *sp);
-static int stli_setserial(struct tty_struct *tty, struct serial_struct __user *sp);
-static int stli_getbrdstats(combrd_t __user *bp);
-static int stli_getportstats(struct tty_struct *tty, struct stliport *portp, comstats_t __user *cp);
-static int stli_portcmdstats(struct tty_struct *tty, struct stliport *portp);
-static int stli_clrportstats(struct stliport *portp, comstats_t __user *cp);
-static int stli_getportstruct(struct stliport __user *arg);
-static int stli_getbrdstruct(struct stlibrd __user *arg);
-static struct stlibrd *stli_allocbrd(void);
-
-static void stli_ecpinit(struct stlibrd *brdp);
-static void stli_ecpenable(struct stlibrd *brdp);
-static void stli_ecpdisable(struct stlibrd *brdp);
-static void __iomem *stli_ecpgetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_ecpreset(struct stlibrd *brdp);
-static void stli_ecpintr(struct stlibrd *brdp);
-static void stli_ecpeiinit(struct stlibrd *brdp);
-static void stli_ecpeienable(struct stlibrd *brdp);
-static void stli_ecpeidisable(struct stlibrd *brdp);
-static void __iomem *stli_ecpeigetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_ecpeireset(struct stlibrd *brdp);
-static void stli_ecpmcenable(struct stlibrd *brdp);
-static void stli_ecpmcdisable(struct stlibrd *brdp);
-static void __iomem *stli_ecpmcgetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_ecpmcreset(struct stlibrd *brdp);
-static void stli_ecppciinit(struct stlibrd *brdp);
-static void __iomem *stli_ecppcigetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_ecppcireset(struct stlibrd *brdp);
-
-static void stli_onbinit(struct stlibrd *brdp);
-static void stli_onbenable(struct stlibrd *brdp);
-static void stli_onbdisable(struct stlibrd *brdp);
-static void __iomem *stli_onbgetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_onbreset(struct stlibrd *brdp);
-static void stli_onbeinit(struct stlibrd *brdp);
-static void stli_onbeenable(struct stlibrd *brdp);
-static void stli_onbedisable(struct stlibrd *brdp);
-static void __iomem *stli_onbegetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_onbereset(struct stlibrd *brdp);
-static void stli_bbyinit(struct stlibrd *brdp);
-static void __iomem *stli_bbygetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_bbyreset(struct stlibrd *brdp);
-static void stli_stalinit(struct stlibrd *brdp);
-static void __iomem *stli_stalgetmemptr(struct stlibrd *brdp, unsigned long offset, int line);
-static void stli_stalreset(struct stlibrd *brdp);
-
-static struct stliport *stli_getport(unsigned int brdnr, unsigned int panelnr, unsigned int portnr);
-
-static int stli_initecp(struct stlibrd *brdp);
-static int stli_initonb(struct stlibrd *brdp);
-#if STLI_EISAPROBE != 0
-static int stli_eisamemprobe(struct stlibrd *brdp);
-#endif
-static int stli_initports(struct stlibrd *brdp);
-
-/*****************************************************************************/
-
-/*
- * Define the driver info for a user level shared memory device. This
- * device will work sort of like the /dev/kmem device - except that it
- * will give access to the shared memory on the Stallion intelligent
- * board. This is also a very useful debugging tool.
- */
-static const struct file_operations stli_fsiomem = {
- .owner = THIS_MODULE,
- .read = stli_memread,
- .write = stli_memwrite,
- .unlocked_ioctl = stli_memioctl,
- .llseek = default_llseek,
-};
-
-/*****************************************************************************/
-
-/*
- * Define a timer_list entry for our poll routine. The slave board
- * is polled every so often to see if anything needs doing. This is
- * much cheaper on host cpu than using interrupts. It turns out to
- * not increase character latency by much either...
- */
-static DEFINE_TIMER(stli_timerlist, stli_poll, 0, 0);
-
-static int stli_timeron;
-
-/*
- * Define the calculation for the timeout routine.
- */
-#define STLI_TIMEOUT (jiffies + 1)
-
-/*****************************************************************************/
-
-static struct class *istallion_class;
-
-static void stli_cleanup_ports(struct stlibrd *brdp)
-{
- struct stliport *portp;
- unsigned int j;
- struct tty_struct *tty;
-
- for (j = 0; j < STL_MAXPORTS; j++) {
- portp = brdp->ports[j];
- if (portp != NULL) {
- tty = tty_port_tty_get(&portp->port);
- if (tty != NULL) {
- tty_hangup(tty);
- tty_kref_put(tty);
- }
- kfree(portp);
- }
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Parse the supplied argument string, into the board conf struct.
- */
-
-static int stli_parsebrd(struct stlconf *confp, char **argp)
-{
- unsigned int i;
- char *sp;
-
- if (argp[0] == NULL || *argp[0] == 0)
- return 0;
-
- for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++)
- *sp = tolower(*sp);
-
- for (i = 0; i < ARRAY_SIZE(stli_brdstr); i++) {
- if (strcmp(stli_brdstr[i].name, argp[0]) == 0)
- break;
- }
- if (i == ARRAY_SIZE(stli_brdstr)) {
- printk(KERN_WARNING "istallion: unknown board name, %s?\n", argp[0]);
- return 0;
- }
-
- confp->brdtype = stli_brdstr[i].type;
- if (argp[1] != NULL && *argp[1] != 0)
- confp->ioaddr1 = simple_strtoul(argp[1], NULL, 0);
- if (argp[2] != NULL && *argp[2] != 0)
- confp->memaddr = simple_strtoul(argp[2], NULL, 0);
- return(1);
-}
-
-/*****************************************************************************/
-
-/*
- * On the first open of the device setup the port hardware, and
- * initialize the per port data structure. Since initializing the port
- * requires several commands to the board we will need to wait for any
- * other open that is already initializing the port.
- *
- * Locking: protected by the port mutex.
- */
-
-static int stli_activate(struct tty_port *port, struct tty_struct *tty)
-{
- struct stliport *portp = container_of(port, struct stliport, port);
- struct stlibrd *brdp = stli_brds[portp->brdnr];
- int rc;
-
- if ((rc = stli_initopen(tty, brdp, portp)) >= 0)
- clear_bit(TTY_IO_ERROR, &tty->flags);
- wake_up_interruptible(&portp->raw_wait);
- return rc;
-}
-
-static int stli_open(struct tty_struct *tty, struct file *filp)
-{
- struct stlibrd *brdp;
- struct stliport *portp;
- unsigned int minordev, brdnr, portnr;
-
- minordev = tty->index;
- brdnr = MINOR2BRD(minordev);
- if (brdnr >= stli_nrbrds)
- return -ENODEV;
- brdp = stli_brds[brdnr];
- if (brdp == NULL)
- return -ENODEV;
- if (!test_bit(BST_STARTED, &brdp->state))
- return -ENODEV;
- portnr = MINOR2PORT(minordev);
- if (portnr > brdp->nrports)
- return -ENODEV;
-
- portp = brdp->ports[portnr];
- if (portp == NULL)
- return -ENODEV;
- if (portp->devnr < 1)
- return -ENODEV;
-
- tty->driver_data = portp;
- return tty_port_open(&portp->port, tty, filp);
-}
-
-
-/*****************************************************************************/
-
-static void stli_shutdown(struct tty_port *port)
-{
- struct stlibrd *brdp;
- unsigned long ftype;
- unsigned long flags;
- struct stliport *portp = container_of(port, struct stliport, port);
-
- if (portp->brdnr >= stli_nrbrds)
- return;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
- /*
- * May want to wait for data to drain before closing. The BUSY
- * flag keeps track of whether we are still transmitting or not.
- * It is updated by messages from the slave - indicating when all
- * chars really have drained.
- */
-
- if (!test_bit(ST_CLOSING, &portp->state))
- stli_rawclose(brdp, portp, 0, 0);
-
- spin_lock_irqsave(&stli_lock, flags);
- clear_bit(ST_TXBUSY, &portp->state);
- clear_bit(ST_RXSTOP, &portp->state);
- spin_unlock_irqrestore(&stli_lock, flags);
-
- ftype = FLUSHTX | FLUSHRX;
- stli_cmdwait(brdp, portp, A_FLUSH, &ftype, sizeof(u32), 0);
-}
-
-static void stli_close(struct tty_struct *tty, struct file *filp)
-{
- struct stliport *portp = tty->driver_data;
- unsigned long flags;
- if (portp == NULL)
- return;
- spin_lock_irqsave(&stli_lock, flags);
- /* Flush any internal buffering out first */
- if (tty == stli_txcooktty)
- stli_flushchars(tty);
- spin_unlock_irqrestore(&stli_lock, flags);
- tty_port_close(&portp->port, tty, filp);
-}
-
-/*****************************************************************************/
-
-/*
- * Carry out first open operations on a port. This involves a number of
- * commands to be sent to the slave. We need to open the port, set the
- * notification events, set the initial port settings, get and set the
- * initial signal values. We sleep and wait in between each one. But
- * this still all happens pretty quickly.
- */
-
-static int stli_initopen(struct tty_struct *tty,
- struct stlibrd *brdp, struct stliport *portp)
-{
- asynotify_t nt;
- asyport_t aport;
- int rc;
-
- if ((rc = stli_rawopen(brdp, portp, 0, 1)) < 0)
- return rc;
-
- memset(&nt, 0, sizeof(asynotify_t));
- nt.data = (DT_TXLOW | DT_TXEMPTY | DT_RXBUSY | DT_RXBREAK);
- nt.signal = SG_DCD;
- if ((rc = stli_cmdwait(brdp, portp, A_SETNOTIFY, &nt,
- sizeof(asynotify_t), 0)) < 0)
- return rc;
-
- stli_mkasyport(tty, portp, &aport, tty->termios);
- if ((rc = stli_cmdwait(brdp, portp, A_SETPORT, &aport,
- sizeof(asyport_t), 0)) < 0)
- return rc;
-
- set_bit(ST_GETSIGS, &portp->state);
- if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS, &portp->asig,
- sizeof(asysigs_t), 1)) < 0)
- return rc;
- if (test_and_clear_bit(ST_GETSIGS, &portp->state))
- portp->sigs = stli_mktiocm(portp->asig.sigvalue);
- stli_mkasysigs(&portp->asig, 1, 1);
- if ((rc = stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
- sizeof(asysigs_t), 0)) < 0)
- return rc;
-
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Send an open message to the slave. This will sleep waiting for the
- * acknowledgement, so must have user context. We need to co-ordinate
- * with close events here, since we don't want open and close events
- * to overlap.
- */
-
-static int stli_rawopen(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait)
-{
- cdkhdr_t __iomem *hdrp;
- cdkctrl_t __iomem *cp;
- unsigned char __iomem *bits;
- unsigned long flags;
- int rc;
-
-/*
- * Send a message to the slave to open this port.
- */
-
-/*
- * Slave is already closing this port. This can happen if a hangup
- * occurs on this port. So we must wait until it is complete. The
- * order of opens and closes may not be preserved across shared
- * memory, so we must wait until it is complete.
- */
- wait_event_interruptible_tty(portp->raw_wait,
- !test_bit(ST_CLOSING, &portp->state));
- if (signal_pending(current)) {
- return -ERESTARTSYS;
- }
-
-/*
- * Everything is ready now, so write the open message into shared
- * memory. Once the message is in set the service bits to say that
- * this port wants service.
- */
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- cp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
- writel(arg, &cp->openarg);
- writeb(1, &cp->open);
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset +
- portp->portidx;
- writeb(readb(bits) | portp->portbit, bits);
- EBRDDISABLE(brdp);
-
- if (wait == 0) {
- spin_unlock_irqrestore(&brd_lock, flags);
- return 0;
- }
-
-/*
- * Slave is in action, so now we must wait for the open acknowledgment
- * to come back.
- */
- rc = 0;
- set_bit(ST_OPENING, &portp->state);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- wait_event_interruptible_tty(portp->raw_wait,
- !test_bit(ST_OPENING, &portp->state));
- if (signal_pending(current))
- rc = -ERESTARTSYS;
-
- if ((rc == 0) && (portp->rc != 0))
- rc = -EIO;
- return rc;
-}
-
-/*****************************************************************************/
-
-/*
- * Send a close message to the slave. Normally this will sleep waiting
- * for the acknowledgement, but if wait parameter is 0 it will not. If
- * wait is true then must have user context (to sleep).
- */
-
-static int stli_rawclose(struct stlibrd *brdp, struct stliport *portp, unsigned long arg, int wait)
-{
- cdkhdr_t __iomem *hdrp;
- cdkctrl_t __iomem *cp;
- unsigned char __iomem *bits;
- unsigned long flags;
- int rc;
-
-/*
- * Slave is already closing this port. This can happen if a hangup
- * occurs on this port.
- */
- if (wait) {
- wait_event_interruptible_tty(portp->raw_wait,
- !test_bit(ST_CLOSING, &portp->state));
- if (signal_pending(current)) {
- return -ERESTARTSYS;
- }
- }
-
-/*
- * Write the close command into shared memory.
- */
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- cp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
- writel(arg, &cp->closearg);
- writeb(1, &cp->close);
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset +
- portp->portidx;
- writeb(readb(bits) |portp->portbit, bits);
- EBRDDISABLE(brdp);
-
- set_bit(ST_CLOSING, &portp->state);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- if (wait == 0)
- return 0;
-
-/*
- * Slave is in action, so now we must wait for the open acknowledgment
- * to come back.
- */
- rc = 0;
- wait_event_interruptible_tty(portp->raw_wait,
- !test_bit(ST_CLOSING, &portp->state));
- if (signal_pending(current))
- rc = -ERESTARTSYS;
-
- if ((rc == 0) && (portp->rc != 0))
- rc = -EIO;
- return rc;
-}
-
-/*****************************************************************************/
-
-/*
- * Send a command to the slave and wait for the response. This must
- * have user context (it sleeps). This routine is generic in that it
- * can send any type of command. Its purpose is to wait for that command
- * to complete (as opposed to initiating the command then returning).
- */
-
-static int stli_cmdwait(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback)
-{
- /*
- * no need for wait_event_tty because clearing ST_CMDING cannot block
- * on BTM
- */
- wait_event_interruptible(portp->raw_wait,
- !test_bit(ST_CMDING, &portp->state));
- if (signal_pending(current))
- return -ERESTARTSYS;
-
- stli_sendcmd(brdp, portp, cmd, arg, size, copyback);
-
- wait_event_interruptible(portp->raw_wait,
- !test_bit(ST_CMDING, &portp->state));
- if (signal_pending(current))
- return -ERESTARTSYS;
-
- if (portp->rc != 0)
- return -EIO;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Send the termios settings for this port to the slave. This sleeps
- * waiting for the command to complete - so must have user context.
- */
-
-static int stli_setport(struct tty_struct *tty)
-{
- struct stliport *portp = tty->driver_data;
- struct stlibrd *brdp;
- asyport_t aport;
-
- if (portp == NULL)
- return -ENODEV;
- if (portp->brdnr >= stli_nrbrds)
- return -ENODEV;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return -ENODEV;
-
- stli_mkasyport(tty, portp, &aport, tty->termios);
- return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0));
-}
-
-/*****************************************************************************/
-
-static int stli_carrier_raised(struct tty_port *port)
-{
- struct stliport *portp = container_of(port, struct stliport, port);
- return (portp->sigs & TIOCM_CD) ? 1 : 0;
-}
-
-static void stli_dtr_rts(struct tty_port *port, int on)
-{
- struct stliport *portp = container_of(port, struct stliport, port);
- struct stlibrd *brdp = stli_brds[portp->brdnr];
- stli_mkasysigs(&portp->asig, on, on);
- if (stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
- sizeof(asysigs_t), 0) < 0)
- printk(KERN_WARNING "istallion: dtr set failed.\n");
-}
-
-
-/*****************************************************************************/
-
-/*
- * Write routine. Take the data and put it in the shared memory ring
- * queue. If port is not already sending chars then need to mark the
- * service bits for this port.
- */
-
-static int stli_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
- cdkasy_t __iomem *ap;
- cdkhdr_t __iomem *hdrp;
- unsigned char __iomem *bits;
- unsigned char __iomem *shbuf;
- unsigned char *chbuf;
- struct stliport *portp;
- struct stlibrd *brdp;
- unsigned int len, stlen, head, tail, size;
- unsigned long flags;
-
- if (tty == stli_txcooktty)
- stli_flushchars(tty);
- portp = tty->driver_data;
- if (portp == NULL)
- return 0;
- if (portp->brdnr >= stli_nrbrds)
- return 0;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return 0;
- chbuf = (unsigned char *) buf;
-
-/*
- * All data is now local, shove as much as possible into shared memory.
- */
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr);
- head = (unsigned int) readw(&ap->txq.head);
- tail = (unsigned int) readw(&ap->txq.tail);
- if (tail != ((unsigned int) readw(&ap->txq.tail)))
- tail = (unsigned int) readw(&ap->txq.tail);
- size = portp->txsize;
- if (head >= tail) {
- len = size - (head - tail) - 1;
- stlen = size - head;
- } else {
- len = tail - head - 1;
- stlen = len;
- }
-
- len = min(len, (unsigned int)count);
- count = 0;
- shbuf = (char __iomem *) EBRDGETMEMPTR(brdp, portp->txoffset);
-
- while (len > 0) {
- stlen = min(len, stlen);
- memcpy_toio(shbuf + head, chbuf, stlen);
- chbuf += stlen;
- len -= stlen;
- count += stlen;
- head += stlen;
- if (head >= size) {
- head = 0;
- stlen = tail;
- }
- }
-
- ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr);
- writew(head, &ap->txq.head);
- if (test_bit(ST_TXBUSY, &portp->state)) {
- if (readl(&ap->changed.data) & DT_TXEMPTY)
- writel(readl(&ap->changed.data) & ~DT_TXEMPTY, &ap->changed.data);
- }
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset +
- portp->portidx;
- writeb(readb(bits) | portp->portbit, bits);
- set_bit(ST_TXBUSY, &portp->state);
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- return(count);
-}
-
-/*****************************************************************************/
-
-/*
- * Output a single character. We put it into a temporary local buffer
- * (for speed) then write out that buffer when the flushchars routine
- * is called. There is a safety catch here so that if some other port
- * writes chars before the current buffer has been, then we write them
- * first them do the new ports.
- */
-
-static int stli_putchar(struct tty_struct *tty, unsigned char ch)
-{
- if (tty != stli_txcooktty) {
- if (stli_txcooktty != NULL)
- stli_flushchars(stli_txcooktty);
- stli_txcooktty = tty;
- }
-
- stli_txcookbuf[stli_txcooksize++] = ch;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Transfer characters from the local TX cooking buffer to the board.
- * We sort of ignore the tty that gets passed in here. We rely on the
- * info stored with the TX cook buffer to tell us which port to flush
- * the data on. In any case we clean out the TX cook buffer, for re-use
- * by someone else.
- */
-
-static void stli_flushchars(struct tty_struct *tty)
-{
- cdkhdr_t __iomem *hdrp;
- unsigned char __iomem *bits;
- cdkasy_t __iomem *ap;
- struct tty_struct *cooktty;
- struct stliport *portp;
- struct stlibrd *brdp;
- unsigned int len, stlen, head, tail, size, count, cooksize;
- unsigned char *buf;
- unsigned char __iomem *shbuf;
- unsigned long flags;
-
- cooksize = stli_txcooksize;
- cooktty = stli_txcooktty;
- stli_txcooksize = 0;
- stli_txcookrealsize = 0;
- stli_txcooktty = NULL;
-
- if (cooktty == NULL)
- return;
- if (tty != cooktty)
- tty = cooktty;
- if (cooksize == 0)
- return;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- if (portp->brdnr >= stli_nrbrds)
- return;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
-
- ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr);
- head = (unsigned int) readw(&ap->txq.head);
- tail = (unsigned int) readw(&ap->txq.tail);
- if (tail != ((unsigned int) readw(&ap->txq.tail)))
- tail = (unsigned int) readw(&ap->txq.tail);
- size = portp->txsize;
- if (head >= tail) {
- len = size - (head - tail) - 1;
- stlen = size - head;
- } else {
- len = tail - head - 1;
- stlen = len;
- }
-
- len = min(len, cooksize);
- count = 0;
- shbuf = EBRDGETMEMPTR(brdp, portp->txoffset);
- buf = stli_txcookbuf;
-
- while (len > 0) {
- stlen = min(len, stlen);
- memcpy_toio(shbuf + head, buf, stlen);
- buf += stlen;
- len -= stlen;
- count += stlen;
- head += stlen;
- if (head >= size) {
- head = 0;
- stlen = tail;
- }
- }
-
- ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr);
- writew(head, &ap->txq.head);
-
- if (test_bit(ST_TXBUSY, &portp->state)) {
- if (readl(&ap->changed.data) & DT_TXEMPTY)
- writel(readl(&ap->changed.data) & ~DT_TXEMPTY, &ap->changed.data);
- }
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset +
- portp->portidx;
- writeb(readb(bits) | portp->portbit, bits);
- set_bit(ST_TXBUSY, &portp->state);
-
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-static int stli_writeroom(struct tty_struct *tty)
-{
- cdkasyrq_t __iomem *rp;
- struct stliport *portp;
- struct stlibrd *brdp;
- unsigned int head, tail, len;
- unsigned long flags;
-
- if (tty == stli_txcooktty) {
- if (stli_txcookrealsize != 0) {
- len = stli_txcookrealsize - stli_txcooksize;
- return len;
- }
- }
-
- portp = tty->driver_data;
- if (portp == NULL)
- return 0;
- if (portp->brdnr >= stli_nrbrds)
- return 0;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return 0;
-
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
- head = (unsigned int) readw(&rp->head);
- tail = (unsigned int) readw(&rp->tail);
- if (tail != ((unsigned int) readw(&rp->tail)))
- tail = (unsigned int) readw(&rp->tail);
- len = (head >= tail) ? (portp->txsize - (head - tail)) : (tail - head);
- len--;
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- if (tty == stli_txcooktty) {
- stli_txcookrealsize = len;
- len -= stli_txcooksize;
- }
- return len;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the number of characters in the transmit buffer. Normally we
- * will return the number of chars in the shared memory ring queue.
- * We need to kludge around the case where the shared memory buffer is
- * empty but not all characters have drained yet, for this case just
- * return that there is 1 character in the buffer!
- */
-
-static int stli_charsinbuffer(struct tty_struct *tty)
-{
- cdkasyrq_t __iomem *rp;
- struct stliport *portp;
- struct stlibrd *brdp;
- unsigned int head, tail, len;
- unsigned long flags;
-
- if (tty == stli_txcooktty)
- stli_flushchars(tty);
- portp = tty->driver_data;
- if (portp == NULL)
- return 0;
- if (portp->brdnr >= stli_nrbrds)
- return 0;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return 0;
-
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->txq;
- head = (unsigned int) readw(&rp->head);
- tail = (unsigned int) readw(&rp->tail);
- if (tail != ((unsigned int) readw(&rp->tail)))
- tail = (unsigned int) readw(&rp->tail);
- len = (head >= tail) ? (head - tail) : (portp->txsize - (tail - head));
- if ((len == 0) && test_bit(ST_TXBUSY, &portp->state))
- len = 1;
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- return len;
-}
-
-/*****************************************************************************/
-
-/*
- * Generate the serial struct info.
- */
-
-static int stli_getserial(struct stliport *portp, struct serial_struct __user *sp)
-{
- struct serial_struct sio;
- struct stlibrd *brdp;
-
- memset(&sio, 0, sizeof(struct serial_struct));
- sio.type = PORT_UNKNOWN;
- sio.line = portp->portnr;
- sio.irq = 0;
- sio.flags = portp->port.flags;
- sio.baud_base = portp->baud_base;
- sio.close_delay = portp->port.close_delay;
- sio.closing_wait = portp->closing_wait;
- sio.custom_divisor = portp->custom_divisor;
- sio.xmit_fifo_size = 0;
- sio.hub6 = 0;
-
- brdp = stli_brds[portp->brdnr];
- if (brdp != NULL)
- sio.port = brdp->iobase;
-
- return copy_to_user(sp, &sio, sizeof(struct serial_struct)) ?
- -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Set port according to the serial struct info.
- * At this point we do not do any auto-configure stuff, so we will
- * just quietly ignore any requests to change irq, etc.
- */
-
-static int stli_setserial(struct tty_struct *tty, struct serial_struct __user *sp)
-{
- struct serial_struct sio;
- int rc;
- struct stliport *portp = tty->driver_data;
-
- if (copy_from_user(&sio, sp, sizeof(struct serial_struct)))
- return -EFAULT;
- if (!capable(CAP_SYS_ADMIN)) {
- if ((sio.baud_base != portp->baud_base) ||
- (sio.close_delay != portp->port.close_delay) ||
- ((sio.flags & ~ASYNC_USR_MASK) !=
- (portp->port.flags & ~ASYNC_USR_MASK)))
- return -EPERM;
- }
-
- portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) |
- (sio.flags & ASYNC_USR_MASK);
- portp->baud_base = sio.baud_base;
- portp->port.close_delay = sio.close_delay;
- portp->closing_wait = sio.closing_wait;
- portp->custom_divisor = sio.custom_divisor;
-
- if ((rc = stli_setport(tty)) < 0)
- return rc;
- return 0;
-}
-
-/*****************************************************************************/
-
-static int stli_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct stliport *portp = tty->driver_data;
- struct stlibrd *brdp;
- int rc;
-
- if (portp == NULL)
- return -ENODEV;
- if (portp->brdnr >= stli_nrbrds)
- return 0;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return 0;
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- if ((rc = stli_cmdwait(brdp, portp, A_GETSIGNALS,
- &portp->asig, sizeof(asysigs_t), 1)) < 0)
- return rc;
-
- return stli_mktiocm(portp->asig.sigvalue);
-}
-
-static int stli_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct stliport *portp = tty->driver_data;
- struct stlibrd *brdp;
- int rts = -1, dtr = -1;
-
- if (portp == NULL)
- return -ENODEV;
- if (portp->brdnr >= stli_nrbrds)
- return 0;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return 0;
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- if (set & TIOCM_RTS)
- rts = 1;
- if (set & TIOCM_DTR)
- dtr = 1;
- if (clear & TIOCM_RTS)
- rts = 0;
- if (clear & TIOCM_DTR)
- dtr = 0;
-
- stli_mkasysigs(&portp->asig, dtr, rts);
-
- return stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
- sizeof(asysigs_t), 0);
-}
-
-static int stli_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct stliport *portp;
- struct stlibrd *brdp;
- int rc;
- void __user *argp = (void __user *)arg;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -ENODEV;
- if (portp->brdnr >= stli_nrbrds)
- return 0;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return 0;
-
- if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
- (cmd != COM_GETPORTSTATS) && (cmd != COM_CLRPORTSTATS)) {
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
- }
-
- rc = 0;
-
- switch (cmd) {
- case TIOCGSERIAL:
- rc = stli_getserial(portp, argp);
- break;
- case TIOCSSERIAL:
- rc = stli_setserial(tty, argp);
- break;
- case STL_GETPFLAG:
- rc = put_user(portp->pflag, (unsigned __user *)argp);
- break;
- case STL_SETPFLAG:
- if ((rc = get_user(portp->pflag, (unsigned __user *)argp)) == 0)
- stli_setport(tty);
- break;
- case COM_GETPORTSTATS:
- rc = stli_getportstats(tty, portp, argp);
- break;
- case COM_CLRPORTSTATS:
- rc = stli_clrportstats(portp, argp);
- break;
- case TIOCSERCONFIG:
- case TIOCSERGWILD:
- case TIOCSERSWILD:
- case TIOCSERGETLSR:
- case TIOCSERGSTRUCT:
- case TIOCSERGETMULTI:
- case TIOCSERSETMULTI:
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
-
- return rc;
-}
-
-/*****************************************************************************/
-
-/*
- * This routine assumes that we have user context and can sleep.
- * Looks like it is true for the current ttys implementation..!!
- */
-
-static void stli_settermios(struct tty_struct *tty, struct ktermios *old)
-{
- struct stliport *portp;
- struct stlibrd *brdp;
- struct ktermios *tiosp;
- asyport_t aport;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- if (portp->brdnr >= stli_nrbrds)
- return;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
- tiosp = tty->termios;
-
- stli_mkasyport(tty, portp, &aport, tiosp);
- stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0);
- stli_mkasysigs(&portp->asig, ((tiosp->c_cflag & CBAUD) ? 1 : 0), -1);
- stli_cmdwait(brdp, portp, A_SETSIGNALS, &portp->asig,
- sizeof(asysigs_t), 0);
- if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0))
- tty->hw_stopped = 0;
- if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
- wake_up_interruptible(&portp->port.open_wait);
-}
-
-/*****************************************************************************/
-
-/*
- * Attempt to flow control who ever is sending us data. We won't really
- * do any flow control action here. We can't directly, and even if we
- * wanted to we would have to send a command to the slave. The slave
- * knows how to flow control, and will do so when its buffers reach its
- * internal high water marks. So what we will do is set a local state
- * bit that will stop us sending any RX data up from the poll routine
- * (which is the place where RX data from the slave is handled).
- */
-
-static void stli_throttle(struct tty_struct *tty)
-{
- struct stliport *portp = tty->driver_data;
- if (portp == NULL)
- return;
- set_bit(ST_RXSTOP, &portp->state);
-}
-
-/*****************************************************************************/
-
-/*
- * Unflow control the device sending us data... That means that all
- * we have to do is clear the RXSTOP state bit. The next poll call
- * will then be able to pass the RX data back up.
- */
-
-static void stli_unthrottle(struct tty_struct *tty)
-{
- struct stliport *portp = tty->driver_data;
- if (portp == NULL)
- return;
- clear_bit(ST_RXSTOP, &portp->state);
-}
-
-/*****************************************************************************/
-
-/*
- * Stop the transmitter.
- */
-
-static void stli_stop(struct tty_struct *tty)
-{
-}
-
-/*****************************************************************************/
-
-/*
- * Start the transmitter again.
- */
-
-static void stli_start(struct tty_struct *tty)
-{
-}
-
-/*****************************************************************************/
-
-
-/*
- * Hangup this port. This is pretty much like closing the port, only
- * a little more brutal. No waiting for data to drain. Shutdown the
- * port and maybe drop signals. This is rather tricky really. We want
- * to close the port as well.
- */
-
-static void stli_hangup(struct tty_struct *tty)
-{
- struct stliport *portp = tty->driver_data;
- tty_port_hangup(&portp->port);
-}
-
-/*****************************************************************************/
-
-/*
- * Flush characters from the lower buffer. We may not have user context
- * so we cannot sleep waiting for it to complete. Also we need to check
- * if there is chars for this port in the TX cook buffer, and flush them
- * as well.
- */
-
-static void stli_flushbuffer(struct tty_struct *tty)
-{
- struct stliport *portp;
- struct stlibrd *brdp;
- unsigned long ftype, flags;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- if (portp->brdnr >= stli_nrbrds)
- return;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- if (tty == stli_txcooktty) {
- stli_txcooktty = NULL;
- stli_txcooksize = 0;
- stli_txcookrealsize = 0;
- }
- if (test_bit(ST_CMDING, &portp->state)) {
- set_bit(ST_DOFLUSHTX, &portp->state);
- } else {
- ftype = FLUSHTX;
- if (test_bit(ST_DOFLUSHRX, &portp->state)) {
- ftype |= FLUSHRX;
- clear_bit(ST_DOFLUSHRX, &portp->state);
- }
- __stli_sendcmd(brdp, portp, A_FLUSH, &ftype, sizeof(u32), 0);
- }
- spin_unlock_irqrestore(&brd_lock, flags);
- tty_wakeup(tty);
-}
-
-/*****************************************************************************/
-
-static int stli_breakctl(struct tty_struct *tty, int state)
-{
- struct stlibrd *brdp;
- struct stliport *portp;
- long arg;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -EINVAL;
- if (portp->brdnr >= stli_nrbrds)
- return -EINVAL;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return -EINVAL;
-
- arg = (state == -1) ? BREAKON : BREAKOFF;
- stli_cmdwait(brdp, portp, A_BREAK, &arg, sizeof(long), 0);
- return 0;
-}
-
-/*****************************************************************************/
-
-static void stli_waituntilsent(struct tty_struct *tty, int timeout)
-{
- struct stliport *portp;
- unsigned long tend;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
-
- if (timeout == 0)
- timeout = HZ;
- tend = jiffies + timeout;
-
- while (test_bit(ST_TXBUSY, &portp->state)) {
- if (signal_pending(current))
- break;
- msleep_interruptible(20);
- if (time_after_eq(jiffies, tend))
- break;
- }
-}
-
-/*****************************************************************************/
-
-static void stli_sendxchar(struct tty_struct *tty, char ch)
-{
- struct stlibrd *brdp;
- struct stliport *portp;
- asyctrl_t actrl;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- if (portp->brdnr >= stli_nrbrds)
- return;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
- memset(&actrl, 0, sizeof(asyctrl_t));
- if (ch == STOP_CHAR(tty)) {
- actrl.rxctrl = CT_STOPFLOW;
- } else if (ch == START_CHAR(tty)) {
- actrl.rxctrl = CT_STARTFLOW;
- } else {
- actrl.txctrl = CT_SENDCHR;
- actrl.tximdch = ch;
- }
- stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
-}
-
-static void stli_portinfo(struct seq_file *m, struct stlibrd *brdp, struct stliport *portp, int portnr)
-{
- char *uart;
- int rc;
-
- rc = stli_portcmdstats(NULL, portp);
-
- uart = "UNKNOWN";
- if (test_bit(BST_STARTED, &brdp->state)) {
- switch (stli_comstats.hwid) {
- case 0: uart = "2681"; break;
- case 1: uart = "SC26198"; break;
- default:uart = "CD1400"; break;
- }
- }
- seq_printf(m, "%d: uart:%s ", portnr, uart);
-
- if (test_bit(BST_STARTED, &brdp->state) && rc >= 0) {
- char sep;
-
- seq_printf(m, "tx:%d rx:%d", (int) stli_comstats.txtotal,
- (int) stli_comstats.rxtotal);
-
- if (stli_comstats.rxframing)
- seq_printf(m, " fe:%d",
- (int) stli_comstats.rxframing);
- if (stli_comstats.rxparity)
- seq_printf(m, " pe:%d",
- (int) stli_comstats.rxparity);
- if (stli_comstats.rxbreaks)
- seq_printf(m, " brk:%d",
- (int) stli_comstats.rxbreaks);
- if (stli_comstats.rxoverrun)
- seq_printf(m, " oe:%d",
- (int) stli_comstats.rxoverrun);
-
- sep = ' ';
- if (stli_comstats.signals & TIOCM_RTS) {
- seq_printf(m, "%c%s", sep, "RTS");
- sep = '|';
- }
- if (stli_comstats.signals & TIOCM_CTS) {
- seq_printf(m, "%c%s", sep, "CTS");
- sep = '|';
- }
- if (stli_comstats.signals & TIOCM_DTR) {
- seq_printf(m, "%c%s", sep, "DTR");
- sep = '|';
- }
- if (stli_comstats.signals & TIOCM_CD) {
- seq_printf(m, "%c%s", sep, "DCD");
- sep = '|';
- }
- if (stli_comstats.signals & TIOCM_DSR) {
- seq_printf(m, "%c%s", sep, "DSR");
- sep = '|';
- }
- }
- seq_putc(m, '\n');
-}
-
-/*****************************************************************************/
-
-/*
- * Port info, read from the /proc file system.
- */
-
-static int stli_proc_show(struct seq_file *m, void *v)
-{
- struct stlibrd *brdp;
- struct stliport *portp;
- unsigned int brdnr, portnr, totalport;
-
- totalport = 0;
-
- seq_printf(m, "%s: version %s\n", stli_drvtitle, stli_drvversion);
-
-/*
- * We scan through for each board, panel and port. The offset is
- * calculated on the fly, and irrelevant ports are skipped.
- */
- for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) {
- brdp = stli_brds[brdnr];
- if (brdp == NULL)
- continue;
- if (brdp->state == 0)
- continue;
-
- totalport = brdnr * STL_MAXPORTS;
- for (portnr = 0; (portnr < brdp->nrports); portnr++,
- totalport++) {
- portp = brdp->ports[portnr];
- if (portp == NULL)
- continue;
- stli_portinfo(m, brdp, portp, totalport);
- }
- }
- return 0;
-}
-
-static int stli_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, stli_proc_show, NULL);
-}
-
-static const struct file_operations stli_proc_fops = {
- .owner = THIS_MODULE,
- .open = stli_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*****************************************************************************/
-
-/*
- * Generic send command routine. This will send a message to the slave,
- * of the specified type with the specified argument. Must be very
- * careful of data that will be copied out from shared memory -
- * containing command results. The command completion is all done from
- * a poll routine that does not have user context. Therefore you cannot
- * copy back directly into user space, or to the kernel stack of a
- * process. This routine does not sleep, so can be called from anywhere.
- *
- * The caller must hold the brd_lock (see also stli_sendcmd the usual
- * entry point)
- */
-
-static void __stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback)
-{
- cdkhdr_t __iomem *hdrp;
- cdkctrl_t __iomem *cp;
- unsigned char __iomem *bits;
-
- if (test_bit(ST_CMDING, &portp->state)) {
- printk(KERN_ERR "istallion: command already busy, cmd=%x!\n",
- (int) cmd);
- return;
- }
-
- EBRDENABLE(brdp);
- cp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->ctrl;
- if (size > 0) {
- memcpy_toio((void __iomem *) &(cp->args[0]), arg, size);
- if (copyback) {
- portp->argp = arg;
- portp->argsize = size;
- }
- }
- writel(0, &cp->status);
- writel(cmd, &cp->cmd);
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- bits = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset +
- portp->portidx;
- writeb(readb(bits) | portp->portbit, bits);
- set_bit(ST_CMDING, &portp->state);
- EBRDDISABLE(brdp);
-}
-
-static void stli_sendcmd(struct stlibrd *brdp, struct stliport *portp, unsigned long cmd, void *arg, int size, int copyback)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&brd_lock, flags);
- __stli_sendcmd(brdp, portp, cmd, arg, size, copyback);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Read data from shared memory. This assumes that the shared memory
- * is enabled and that interrupts are off. Basically we just empty out
- * the shared memory buffer into the tty buffer. Must be careful to
- * handle the case where we fill up the tty buffer, but still have
- * more chars to unload.
- */
-
-static void stli_read(struct stlibrd *brdp, struct stliport *portp)
-{
- cdkasyrq_t __iomem *rp;
- char __iomem *shbuf;
- struct tty_struct *tty;
- unsigned int head, tail, size;
- unsigned int len, stlen;
-
- if (test_bit(ST_RXSTOP, &portp->state))
- return;
- tty = tty_port_tty_get(&portp->port);
- if (tty == NULL)
- return;
-
- rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->rxq;
- head = (unsigned int) readw(&rp->head);
- if (head != ((unsigned int) readw(&rp->head)))
- head = (unsigned int) readw(&rp->head);
- tail = (unsigned int) readw(&rp->tail);
- size = portp->rxsize;
- if (head >= tail) {
- len = head - tail;
- stlen = len;
- } else {
- len = size - (tail - head);
- stlen = size - tail;
- }
-
- len = tty_buffer_request_room(tty, len);
-
- shbuf = (char __iomem *) EBRDGETMEMPTR(brdp, portp->rxoffset);
-
- while (len > 0) {
- unsigned char *cptr;
-
- stlen = min(len, stlen);
- tty_prepare_flip_string(tty, &cptr, stlen);
- memcpy_fromio(cptr, shbuf + tail, stlen);
- len -= stlen;
- tail += stlen;
- if (tail >= size) {
- tail = 0;
- stlen = head;
- }
- }
- rp = &((cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr))->rxq;
- writew(tail, &rp->tail);
-
- if (head != tail)
- set_bit(ST_RXING, &portp->state);
-
- tty_schedule_flip(tty);
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-/*
- * Set up and carry out any delayed commands. There is only a small set
- * of slave commands that can be done "off-level". So it is not too
- * difficult to deal with them here.
- */
-
-static void stli_dodelaycmd(struct stliport *portp, cdkctrl_t __iomem *cp)
-{
- int cmd;
-
- if (test_bit(ST_DOSIGS, &portp->state)) {
- if (test_bit(ST_DOFLUSHTX, &portp->state) &&
- test_bit(ST_DOFLUSHRX, &portp->state))
- cmd = A_SETSIGNALSF;
- else if (test_bit(ST_DOFLUSHTX, &portp->state))
- cmd = A_SETSIGNALSFTX;
- else if (test_bit(ST_DOFLUSHRX, &portp->state))
- cmd = A_SETSIGNALSFRX;
- else
- cmd = A_SETSIGNALS;
- clear_bit(ST_DOFLUSHTX, &portp->state);
- clear_bit(ST_DOFLUSHRX, &portp->state);
- clear_bit(ST_DOSIGS, &portp->state);
- memcpy_toio((void __iomem *) &(cp->args[0]), (void *) &portp->asig,
- sizeof(asysigs_t));
- writel(0, &cp->status);
- writel(cmd, &cp->cmd);
- set_bit(ST_CMDING, &portp->state);
- } else if (test_bit(ST_DOFLUSHTX, &portp->state) ||
- test_bit(ST_DOFLUSHRX, &portp->state)) {
- cmd = ((test_bit(ST_DOFLUSHTX, &portp->state)) ? FLUSHTX : 0);
- cmd |= ((test_bit(ST_DOFLUSHRX, &portp->state)) ? FLUSHRX : 0);
- clear_bit(ST_DOFLUSHTX, &portp->state);
- clear_bit(ST_DOFLUSHRX, &portp->state);
- memcpy_toio((void __iomem *) &(cp->args[0]), (void *) &cmd, sizeof(int));
- writel(0, &cp->status);
- writel(A_FLUSH, &cp->cmd);
- set_bit(ST_CMDING, &portp->state);
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Host command service checking. This handles commands or messages
- * coming from the slave to the host. Must have board shared memory
- * enabled and interrupts off when called. Notice that by servicing the
- * read data last we don't need to change the shared memory pointer
- * during processing (which is a slow IO operation).
- * Return value indicates if this port is still awaiting actions from
- * the slave (like open, command, or even TX data being sent). If 0
- * then port is still busy, otherwise no longer busy.
- */
-
-static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
-{
- cdkasy_t __iomem *ap;
- cdkctrl_t __iomem *cp;
- struct tty_struct *tty;
- asynotify_t nt;
- unsigned long oldsigs;
- int rc, donerx;
-
- ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr);
- cp = &ap->ctrl;
-
-/*
- * Check if we are waiting for an open completion message.
- */
- if (test_bit(ST_OPENING, &portp->state)) {
- rc = readl(&cp->openarg);
- if (readb(&cp->open) == 0 && rc != 0) {
- if (rc > 0)
- rc--;
- writel(0, &cp->openarg);
- portp->rc = rc;
- clear_bit(ST_OPENING, &portp->state);
- wake_up_interruptible(&portp->raw_wait);
- }
- }
-
-/*
- * Check if we are waiting for a close completion message.
- */
- if (test_bit(ST_CLOSING, &portp->state)) {
- rc = (int) readl(&cp->closearg);
- if (readb(&cp->close) == 0 && rc != 0) {
- if (rc > 0)
- rc--;
- writel(0, &cp->closearg);
- portp->rc = rc;
- clear_bit(ST_CLOSING, &portp->state);
- wake_up_interruptible(&portp->raw_wait);
- }
- }
-
-/*
- * Check if we are waiting for a command completion message. We may
- * need to copy out the command results associated with this command.
- */
- if (test_bit(ST_CMDING, &portp->state)) {
- rc = readl(&cp->status);
- if (readl(&cp->cmd) == 0 && rc != 0) {
- if (rc > 0)
- rc--;
- if (portp->argp != NULL) {
- memcpy_fromio(portp->argp, (void __iomem *) &(cp->args[0]),
- portp->argsize);
- portp->argp = NULL;
- }
- writel(0, &cp->status);
- portp->rc = rc;
- clear_bit(ST_CMDING, &portp->state);
- stli_dodelaycmd(portp, cp);
- wake_up_interruptible(&portp->raw_wait);
- }
- }
-
-/*
- * Check for any notification messages ready. This includes lots of
- * different types of events - RX chars ready, RX break received,
- * TX data low or empty in the slave, modem signals changed state.
- */
- donerx = 0;
-
- if (ap->notify) {
- nt = ap->changed;
- ap->notify = 0;
- tty = tty_port_tty_get(&portp->port);
-
- if (nt.signal & SG_DCD) {
- oldsigs = portp->sigs;
- portp->sigs = stli_mktiocm(nt.sigvalue);
- clear_bit(ST_GETSIGS, &portp->state);
- if ((portp->sigs & TIOCM_CD) &&
- ((oldsigs & TIOCM_CD) == 0))
- wake_up_interruptible(&portp->port.open_wait);
- if ((oldsigs & TIOCM_CD) &&
- ((portp->sigs & TIOCM_CD) == 0)) {
- if (portp->port.flags & ASYNC_CHECK_CD) {
- if (tty)
- tty_hangup(tty);
- }
- }
- }
-
- if (nt.data & DT_TXEMPTY)
- clear_bit(ST_TXBUSY, &portp->state);
- if (nt.data & (DT_TXEMPTY | DT_TXLOW)) {
- if (tty != NULL) {
- tty_wakeup(tty);
- EBRDENABLE(brdp);
- }
- }
-
- if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) {
- if (tty != NULL) {
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (portp->port.flags & ASYNC_SAK) {
- do_SAK(tty);
- EBRDENABLE(brdp);
- }
- tty_schedule_flip(tty);
- }
- }
- tty_kref_put(tty);
-
- if (nt.data & DT_RXBUSY) {
- donerx++;
- stli_read(brdp, portp);
- }
- }
-
-/*
- * It might seem odd that we are checking for more RX chars here.
- * But, we need to handle the case where the tty buffer was previously
- * filled, but we had more characters to pass up. The slave will not
- * send any more RX notify messages until the RX buffer has been emptied.
- * But it will leave the service bits on (since the buffer is not empty).
- * So from here we can try to process more RX chars.
- */
- if ((!donerx) && test_bit(ST_RXING, &portp->state)) {
- clear_bit(ST_RXING, &portp->state);
- stli_read(brdp, portp);
- }
-
- return((test_bit(ST_OPENING, &portp->state) ||
- test_bit(ST_CLOSING, &portp->state) ||
- test_bit(ST_CMDING, &portp->state) ||
- test_bit(ST_TXBUSY, &portp->state) ||
- test_bit(ST_RXING, &portp->state)) ? 0 : 1);
-}
-
-/*****************************************************************************/
-
-/*
- * Service all ports on a particular board. Assumes that the boards
- * shared memory is enabled, and that the page pointer is pointed
- * at the cdk header structure.
- */
-
-static void stli_brdpoll(struct stlibrd *brdp, cdkhdr_t __iomem *hdrp)
-{
- struct stliport *portp;
- unsigned char hostbits[(STL_MAXCHANS / 8) + 1];
- unsigned char slavebits[(STL_MAXCHANS / 8) + 1];
- unsigned char __iomem *slavep;
- int bitpos, bitat, bitsize;
- int channr, nrdevs, slavebitchange;
-
- bitsize = brdp->bitsize;
- nrdevs = brdp->nrdevs;
-
-/*
- * Check if slave wants any service. Basically we try to do as
- * little work as possible here. There are 2 levels of service
- * bits. So if there is nothing to do we bail early. We check
- * 8 service bits at a time in the inner loop, so we can bypass
- * the lot if none of them want service.
- */
- memcpy_fromio(&hostbits[0], (((unsigned char __iomem *) hdrp) + brdp->hostoffset),
- bitsize);
-
- memset(&slavebits[0], 0, bitsize);
- slavebitchange = 0;
-
- for (bitpos = 0; (bitpos < bitsize); bitpos++) {
- if (hostbits[bitpos] == 0)
- continue;
- channr = bitpos * 8;
- for (bitat = 0x1; (channr < nrdevs); channr++, bitat <<= 1) {
- if (hostbits[bitpos] & bitat) {
- portp = brdp->ports[(channr - 1)];
- if (stli_hostcmd(brdp, portp)) {
- slavebitchange++;
- slavebits[bitpos] |= bitat;
- }
- }
- }
- }
-
-/*
- * If any of the ports are no longer busy then update them in the
- * slave request bits. We need to do this after, since a host port
- * service may initiate more slave requests.
- */
- if (slavebitchange) {
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- slavep = ((unsigned char __iomem *) hdrp) + brdp->slaveoffset;
- for (bitpos = 0; (bitpos < bitsize); bitpos++) {
- if (readb(slavebits + bitpos))
- writeb(readb(slavep + bitpos) & ~slavebits[bitpos], slavebits + bitpos);
- }
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Driver poll routine. This routine polls the boards in use and passes
- * messages back up to host when necessary. This is actually very
- * CPU efficient, since we will always have the kernel poll clock, it
- * adds only a few cycles when idle (since board service can be
- * determined very easily), but when loaded generates no interrupts
- * (with their expensive associated context change).
- */
-
-static void stli_poll(unsigned long arg)
-{
- cdkhdr_t __iomem *hdrp;
- struct stlibrd *brdp;
- unsigned int brdnr;
-
- mod_timer(&stli_timerlist, STLI_TIMEOUT);
-
-/*
- * Check each board and do any servicing required.
- */
- for (brdnr = 0; (brdnr < stli_nrbrds); brdnr++) {
- brdp = stli_brds[brdnr];
- if (brdp == NULL)
- continue;
- if (!test_bit(BST_STARTED, &brdp->state))
- continue;
-
- spin_lock(&brd_lock);
- EBRDENABLE(brdp);
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- if (readb(&hdrp->hostreq))
- stli_brdpoll(brdp, hdrp);
- EBRDDISABLE(brdp);
- spin_unlock(&brd_lock);
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Translate the termios settings into the port setting structure of
- * the slave.
- */
-
-static void stli_mkasyport(struct tty_struct *tty, struct stliport *portp,
- asyport_t *pp, struct ktermios *tiosp)
-{
- memset(pp, 0, sizeof(asyport_t));
-
-/*
- * Start of by setting the baud, char size, parity and stop bit info.
- */
- pp->baudout = tty_get_baud_rate(tty);
- if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- pp->baudout = 57600;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- pp->baudout = 115200;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- pp->baudout = 230400;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- pp->baudout = 460800;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
- pp->baudout = (portp->baud_base / portp->custom_divisor);
- }
- if (pp->baudout > STL_MAXBAUD)
- pp->baudout = STL_MAXBAUD;
- pp->baudin = pp->baudout;
-
- switch (tiosp->c_cflag & CSIZE) {
- case CS5:
- pp->csize = 5;
- break;
- case CS6:
- pp->csize = 6;
- break;
- case CS7:
- pp->csize = 7;
- break;
- default:
- pp->csize = 8;
- break;
- }
-
- if (tiosp->c_cflag & CSTOPB)
- pp->stopbs = PT_STOP2;
- else
- pp->stopbs = PT_STOP1;
-
- if (tiosp->c_cflag & PARENB) {
- if (tiosp->c_cflag & PARODD)
- pp->parity = PT_ODDPARITY;
- else
- pp->parity = PT_EVENPARITY;
- } else {
- pp->parity = PT_NOPARITY;
- }
-
-/*
- * Set up any flow control options enabled.
- */
- if (tiosp->c_iflag & IXON) {
- pp->flow |= F_IXON;
- if (tiosp->c_iflag & IXANY)
- pp->flow |= F_IXANY;
- }
- if (tiosp->c_cflag & CRTSCTS)
- pp->flow |= (F_RTSFLOW | F_CTSFLOW);
-
- pp->startin = tiosp->c_cc[VSTART];
- pp->stopin = tiosp->c_cc[VSTOP];
- pp->startout = tiosp->c_cc[VSTART];
- pp->stopout = tiosp->c_cc[VSTOP];
-
-/*
- * Set up the RX char marking mask with those RX error types we must
- * catch. We can get the slave to help us out a little here, it will
- * ignore parity errors and breaks for us, and mark parity errors in
- * the data stream.
- */
- if (tiosp->c_iflag & IGNPAR)
- pp->iflag |= FI_IGNRXERRS;
- if (tiosp->c_iflag & IGNBRK)
- pp->iflag |= FI_IGNBREAK;
-
- portp->rxmarkmsk = 0;
- if (tiosp->c_iflag & (INPCK | PARMRK))
- pp->iflag |= FI_1MARKRXERRS;
- if (tiosp->c_iflag & BRKINT)
- portp->rxmarkmsk |= BRKINT;
-
-/*
- * Set up clocal processing as required.
- */
- if (tiosp->c_cflag & CLOCAL)
- portp->port.flags &= ~ASYNC_CHECK_CD;
- else
- portp->port.flags |= ASYNC_CHECK_CD;
-
-/*
- * Transfer any persistent flags into the asyport structure.
- */
- pp->pflag = (portp->pflag & 0xffff);
- pp->vmin = (portp->pflag & P_RXIMIN) ? 1 : 0;
- pp->vtime = (portp->pflag & P_RXITIME) ? 1 : 0;
- pp->cc[1] = (portp->pflag & P_RXTHOLD) ? 1 : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Construct a slave signals structure for setting the DTR and RTS
- * signals as specified.
- */
-
-static void stli_mkasysigs(asysigs_t *sp, int dtr, int rts)
-{
- memset(sp, 0, sizeof(asysigs_t));
- if (dtr >= 0) {
- sp->signal |= SG_DTR;
- sp->sigvalue |= ((dtr > 0) ? SG_DTR : 0);
- }
- if (rts >= 0) {
- sp->signal |= SG_RTS;
- sp->sigvalue |= ((rts > 0) ? SG_RTS : 0);
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Convert the signals returned from the slave into a local TIOCM type
- * signals value. We keep them locally in TIOCM format.
- */
-
-static long stli_mktiocm(unsigned long sigvalue)
-{
- long tiocm = 0;
- tiocm |= ((sigvalue & SG_DCD) ? TIOCM_CD : 0);
- tiocm |= ((sigvalue & SG_CTS) ? TIOCM_CTS : 0);
- tiocm |= ((sigvalue & SG_RI) ? TIOCM_RI : 0);
- tiocm |= ((sigvalue & SG_DSR) ? TIOCM_DSR : 0);
- tiocm |= ((sigvalue & SG_DTR) ? TIOCM_DTR : 0);
- tiocm |= ((sigvalue & SG_RTS) ? TIOCM_RTS : 0);
- return(tiocm);
-}
-
-/*****************************************************************************/
-
-/*
- * All panels and ports actually attached have been worked out. All
- * we need to do here is set up the appropriate per port data structures.
- */
-
-static int stli_initports(struct stlibrd *brdp)
-{
- struct stliport *portp;
- unsigned int i, panelnr, panelport;
-
- for (i = 0, panelnr = 0, panelport = 0; (i < brdp->nrports); i++) {
- portp = kzalloc(sizeof(struct stliport), GFP_KERNEL);
- if (!portp) {
- printk(KERN_WARNING "istallion: failed to allocate port structure\n");
- continue;
- }
- tty_port_init(&portp->port);
- portp->port.ops = &stli_port_ops;
- portp->magic = STLI_PORTMAGIC;
- portp->portnr = i;
- portp->brdnr = brdp->brdnr;
- portp->panelnr = panelnr;
- portp->baud_base = STL_BAUDBASE;
- portp->port.close_delay = STL_CLOSEDELAY;
- portp->closing_wait = 30 * HZ;
- init_waitqueue_head(&portp->port.open_wait);
- init_waitqueue_head(&portp->port.close_wait);
- init_waitqueue_head(&portp->raw_wait);
- panelport++;
- if (panelport >= brdp->panels[panelnr]) {
- panelport = 0;
- panelnr++;
- }
- brdp->ports[i] = portp;
- }
-
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * All the following routines are board specific hardware operations.
- */
-
-static void stli_ecpinit(struct stlibrd *brdp)
-{
- unsigned long memconf;
-
- outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR));
- udelay(10);
- outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
- udelay(100);
-
- memconf = (brdp->memaddr & ECP_ATADDRMASK) >> ECP_ATADDRSHFT;
- outb(memconf, (brdp->iobase + ECP_ATMEMAR));
-}
-
-/*****************************************************************************/
-
-static void stli_ecpenable(struct stlibrd *brdp)
-{
- outb(ECP_ATENABLE, (brdp->iobase + ECP_ATCONFR));
-}
-
-/*****************************************************************************/
-
-static void stli_ecpdisable(struct stlibrd *brdp)
-{
- outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_ecpgetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
- unsigned char val;
-
- if (offset > brdp->memsize) {
- printk(KERN_ERR "istallion: shared memory pointer=%x out of "
- "range at line=%d(%d), brd=%d\n",
- (int) offset, line, __LINE__, brdp->brdnr);
- ptr = NULL;
- val = 0;
- } else {
- ptr = brdp->membase + (offset % ECP_ATPAGESIZE);
- val = (unsigned char) (offset / ECP_ATPAGESIZE);
- }
- outb(val, (brdp->iobase + ECP_ATMEMPR));
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_ecpreset(struct stlibrd *brdp)
-{
- outb(ECP_ATSTOP, (brdp->iobase + ECP_ATCONFR));
- udelay(10);
- outb(ECP_ATDISABLE, (brdp->iobase + ECP_ATCONFR));
- udelay(500);
-}
-
-/*****************************************************************************/
-
-static void stli_ecpintr(struct stlibrd *brdp)
-{
- outb(0x1, brdp->iobase);
-}
-
-/*****************************************************************************/
-
-/*
- * The following set of functions act on ECP EISA boards.
- */
-
-static void stli_ecpeiinit(struct stlibrd *brdp)
-{
- unsigned long memconf;
-
- outb(0x1, (brdp->iobase + ECP_EIBRDENAB));
- outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
- udelay(10);
- outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
- udelay(500);
-
- memconf = (brdp->memaddr & ECP_EIADDRMASKL) >> ECP_EIADDRSHFTL;
- outb(memconf, (brdp->iobase + ECP_EIMEMARL));
- memconf = (brdp->memaddr & ECP_EIADDRMASKH) >> ECP_EIADDRSHFTH;
- outb(memconf, (brdp->iobase + ECP_EIMEMARH));
-}
-
-/*****************************************************************************/
-
-static void stli_ecpeienable(struct stlibrd *brdp)
-{
- outb(ECP_EIENABLE, (brdp->iobase + ECP_EICONFR));
-}
-
-/*****************************************************************************/
-
-static void stli_ecpeidisable(struct stlibrd *brdp)
-{
- outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_ecpeigetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
- unsigned char val;
-
- if (offset > brdp->memsize) {
- printk(KERN_ERR "istallion: shared memory pointer=%x out of "
- "range at line=%d(%d), brd=%d\n",
- (int) offset, line, __LINE__, brdp->brdnr);
- ptr = NULL;
- val = 0;
- } else {
- ptr = brdp->membase + (offset % ECP_EIPAGESIZE);
- if (offset < ECP_EIPAGESIZE)
- val = ECP_EIENABLE;
- else
- val = ECP_EIENABLE | 0x40;
- }
- outb(val, (brdp->iobase + ECP_EICONFR));
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_ecpeireset(struct stlibrd *brdp)
-{
- outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
- udelay(10);
- outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
- udelay(500);
-}
-
-/*****************************************************************************/
-
-/*
- * The following set of functions act on ECP MCA boards.
- */
-
-static void stli_ecpmcenable(struct stlibrd *brdp)
-{
- outb(ECP_MCENABLE, (brdp->iobase + ECP_MCCONFR));
-}
-
-/*****************************************************************************/
-
-static void stli_ecpmcdisable(struct stlibrd *brdp)
-{
- outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR));
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_ecpmcgetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
- unsigned char val;
-
- if (offset > brdp->memsize) {
- printk(KERN_ERR "istallion: shared memory pointer=%x out of "
- "range at line=%d(%d), brd=%d\n",
- (int) offset, line, __LINE__, brdp->brdnr);
- ptr = NULL;
- val = 0;
- } else {
- ptr = brdp->membase + (offset % ECP_MCPAGESIZE);
- val = ((unsigned char) (offset / ECP_MCPAGESIZE)) | ECP_MCENABLE;
- }
- outb(val, (brdp->iobase + ECP_MCCONFR));
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_ecpmcreset(struct stlibrd *brdp)
-{
- outb(ECP_MCSTOP, (brdp->iobase + ECP_MCCONFR));
- udelay(10);
- outb(ECP_MCDISABLE, (brdp->iobase + ECP_MCCONFR));
- udelay(500);
-}
-
-/*****************************************************************************/
-
-/*
- * The following set of functions act on ECP PCI boards.
- */
-
-static void stli_ecppciinit(struct stlibrd *brdp)
-{
- outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR));
- udelay(10);
- outb(0, (brdp->iobase + ECP_PCICONFR));
- udelay(500);
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_ecppcigetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
- unsigned char val;
-
- if (offset > brdp->memsize) {
- printk(KERN_ERR "istallion: shared memory pointer=%x out of "
- "range at line=%d(%d), board=%d\n",
- (int) offset, line, __LINE__, brdp->brdnr);
- ptr = NULL;
- val = 0;
- } else {
- ptr = brdp->membase + (offset % ECP_PCIPAGESIZE);
- val = (offset / ECP_PCIPAGESIZE) << 1;
- }
- outb(val, (brdp->iobase + ECP_PCICONFR));
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_ecppcireset(struct stlibrd *brdp)
-{
- outb(ECP_PCISTOP, (brdp->iobase + ECP_PCICONFR));
- udelay(10);
- outb(0, (brdp->iobase + ECP_PCICONFR));
- udelay(500);
-}
-
-/*****************************************************************************/
-
-/*
- * The following routines act on ONboards.
- */
-
-static void stli_onbinit(struct stlibrd *brdp)
-{
- unsigned long memconf;
-
- outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR));
- udelay(10);
- outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR));
- mdelay(1000);
-
- memconf = (brdp->memaddr & ONB_ATADDRMASK) >> ONB_ATADDRSHFT;
- outb(memconf, (brdp->iobase + ONB_ATMEMAR));
- outb(0x1, brdp->iobase);
- mdelay(1);
-}
-
-/*****************************************************************************/
-
-static void stli_onbenable(struct stlibrd *brdp)
-{
- outb((brdp->enabval | ONB_ATENABLE), (brdp->iobase + ONB_ATCONFR));
-}
-
-/*****************************************************************************/
-
-static void stli_onbdisable(struct stlibrd *brdp)
-{
- outb((brdp->enabval | ONB_ATDISABLE), (brdp->iobase + ONB_ATCONFR));
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_onbgetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
-
- if (offset > brdp->memsize) {
- printk(KERN_ERR "istallion: shared memory pointer=%x out of "
- "range at line=%d(%d), brd=%d\n",
- (int) offset, line, __LINE__, brdp->brdnr);
- ptr = NULL;
- } else {
- ptr = brdp->membase + (offset % ONB_ATPAGESIZE);
- }
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_onbreset(struct stlibrd *brdp)
-{
- outb(ONB_ATSTOP, (brdp->iobase + ONB_ATCONFR));
- udelay(10);
- outb(ONB_ATDISABLE, (brdp->iobase + ONB_ATCONFR));
- mdelay(1000);
-}
-
-/*****************************************************************************/
-
-/*
- * The following routines act on ONboard EISA.
- */
-
-static void stli_onbeinit(struct stlibrd *brdp)
-{
- unsigned long memconf;
-
- outb(0x1, (brdp->iobase + ONB_EIBRDENAB));
- outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
- udelay(10);
- outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
- mdelay(1000);
-
- memconf = (brdp->memaddr & ONB_EIADDRMASKL) >> ONB_EIADDRSHFTL;
- outb(memconf, (brdp->iobase + ONB_EIMEMARL));
- memconf = (brdp->memaddr & ONB_EIADDRMASKH) >> ONB_EIADDRSHFTH;
- outb(memconf, (brdp->iobase + ONB_EIMEMARH));
- outb(0x1, brdp->iobase);
- mdelay(1);
-}
-
-/*****************************************************************************/
-
-static void stli_onbeenable(struct stlibrd *brdp)
-{
- outb(ONB_EIENABLE, (brdp->iobase + ONB_EICONFR));
-}
-
-/*****************************************************************************/
-
-static void stli_onbedisable(struct stlibrd *brdp)
-{
- outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_onbegetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
- unsigned char val;
-
- if (offset > brdp->memsize) {
- printk(KERN_ERR "istallion: shared memory pointer=%x out of "
- "range at line=%d(%d), brd=%d\n",
- (int) offset, line, __LINE__, brdp->brdnr);
- ptr = NULL;
- val = 0;
- } else {
- ptr = brdp->membase + (offset % ONB_EIPAGESIZE);
- if (offset < ONB_EIPAGESIZE)
- val = ONB_EIENABLE;
- else
- val = ONB_EIENABLE | 0x40;
- }
- outb(val, (brdp->iobase + ONB_EICONFR));
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_onbereset(struct stlibrd *brdp)
-{
- outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
- udelay(10);
- outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
- mdelay(1000);
-}
-
-/*****************************************************************************/
-
-/*
- * The following routines act on Brumby boards.
- */
-
-static void stli_bbyinit(struct stlibrd *brdp)
-{
- outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR));
- udelay(10);
- outb(0, (brdp->iobase + BBY_ATCONFR));
- mdelay(1000);
- outb(0x1, brdp->iobase);
- mdelay(1);
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_bbygetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- void __iomem *ptr;
- unsigned char val;
-
- BUG_ON(offset > brdp->memsize);
-
- ptr = brdp->membase + (offset % BBY_PAGESIZE);
- val = (unsigned char) (offset / BBY_PAGESIZE);
- outb(val, (brdp->iobase + BBY_ATCONFR));
- return(ptr);
-}
-
-/*****************************************************************************/
-
-static void stli_bbyreset(struct stlibrd *brdp)
-{
- outb(BBY_ATSTOP, (brdp->iobase + BBY_ATCONFR));
- udelay(10);
- outb(0, (brdp->iobase + BBY_ATCONFR));
- mdelay(1000);
-}
-
-/*****************************************************************************/
-
-/*
- * The following routines act on original old Stallion boards.
- */
-
-static void stli_stalinit(struct stlibrd *brdp)
-{
- outb(0x1, brdp->iobase);
- mdelay(1000);
-}
-
-/*****************************************************************************/
-
-static void __iomem *stli_stalgetmemptr(struct stlibrd *brdp, unsigned long offset, int line)
-{
- BUG_ON(offset > brdp->memsize);
- return brdp->membase + (offset % STAL_PAGESIZE);
-}
-
-/*****************************************************************************/
-
-static void stli_stalreset(struct stlibrd *brdp)
-{
- u32 __iomem *vecp;
-
- vecp = (u32 __iomem *) (brdp->membase + 0x30);
- writel(0xffff0000, vecp);
- outb(0, brdp->iobase);
- mdelay(1000);
-}
-
-/*****************************************************************************/
-
-/*
- * Try to find an ECP board and initialize it. This handles only ECP
- * board types.
- */
-
-static int stli_initecp(struct stlibrd *brdp)
-{
- cdkecpsig_t sig;
- cdkecpsig_t __iomem *sigsp;
- unsigned int status, nxtid;
- char *name;
- int retval, panelnr, nrports;
-
- if ((brdp->iobase == 0) || (brdp->memaddr == 0)) {
- retval = -ENODEV;
- goto err;
- }
-
- brdp->iosize = ECP_IOSIZE;
-
- if (!request_region(brdp->iobase, brdp->iosize, "istallion")) {
- retval = -EIO;
- goto err;
- }
-
-/*
- * Based on the specific board type setup the common vars to access
- * and enable shared memory. Set all board specific information now
- * as well.
- */
- switch (brdp->brdtype) {
- case BRD_ECP:
- brdp->memsize = ECP_MEMSIZE;
- brdp->pagesize = ECP_ATPAGESIZE;
- brdp->init = stli_ecpinit;
- brdp->enable = stli_ecpenable;
- brdp->reenable = stli_ecpenable;
- brdp->disable = stli_ecpdisable;
- brdp->getmemptr = stli_ecpgetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_ecpreset;
- name = "serial(EC8/64)";
- break;
-
- case BRD_ECPE:
- brdp->memsize = ECP_MEMSIZE;
- brdp->pagesize = ECP_EIPAGESIZE;
- brdp->init = stli_ecpeiinit;
- brdp->enable = stli_ecpeienable;
- brdp->reenable = stli_ecpeienable;
- brdp->disable = stli_ecpeidisable;
- brdp->getmemptr = stli_ecpeigetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_ecpeireset;
- name = "serial(EC8/64-EI)";
- break;
-
- case BRD_ECPMC:
- brdp->memsize = ECP_MEMSIZE;
- brdp->pagesize = ECP_MCPAGESIZE;
- brdp->init = NULL;
- brdp->enable = stli_ecpmcenable;
- brdp->reenable = stli_ecpmcenable;
- brdp->disable = stli_ecpmcdisable;
- brdp->getmemptr = stli_ecpmcgetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_ecpmcreset;
- name = "serial(EC8/64-MCA)";
- break;
-
- case BRD_ECPPCI:
- brdp->memsize = ECP_PCIMEMSIZE;
- brdp->pagesize = ECP_PCIPAGESIZE;
- brdp->init = stli_ecppciinit;
- brdp->enable = NULL;
- brdp->reenable = NULL;
- brdp->disable = NULL;
- brdp->getmemptr = stli_ecppcigetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_ecppcireset;
- name = "serial(EC/RA-PCI)";
- break;
-
- default:
- retval = -EINVAL;
- goto err_reg;
- }
-
-/*
- * The per-board operations structure is all set up, so now let's go
- * and get the board operational. Firstly initialize board configuration
- * registers. Set the memory mapping info so we can get at the boards
- * shared memory.
- */
- EBRDINIT(brdp);
-
- brdp->membase = ioremap_nocache(brdp->memaddr, brdp->memsize);
- if (brdp->membase == NULL) {
- retval = -ENOMEM;
- goto err_reg;
- }
-
-/*
- * Now that all specific code is set up, enable the shared memory and
- * look for the a signature area that will tell us exactly what board
- * this is, and what it is connected to it.
- */
- EBRDENABLE(brdp);
- sigsp = (cdkecpsig_t __iomem *) EBRDGETMEMPTR(brdp, CDK_SIGADDR);
- memcpy_fromio(&sig, sigsp, sizeof(cdkecpsig_t));
- EBRDDISABLE(brdp);
-
- if (sig.magic != cpu_to_le32(ECP_MAGIC)) {
- retval = -ENODEV;
- goto err_unmap;
- }
-
-/*
- * Scan through the signature looking at the panels connected to the
- * board. Calculate the total number of ports as we go.
- */
- for (panelnr = 0, nxtid = 0; (panelnr < STL_MAXPANELS); panelnr++) {
- status = sig.panelid[nxtid];
- if ((status & ECH_PNLIDMASK) != nxtid)
- break;
-
- brdp->panelids[panelnr] = status;
- nrports = (status & ECH_PNL16PORT) ? 16 : 8;
- if ((nrports == 16) && ((status & ECH_PNLXPID) == 0))
- nxtid++;
- brdp->panels[panelnr] = nrports;
- brdp->nrports += nrports;
- nxtid++;
- brdp->nrpanels++;
- }
-
-
- set_bit(BST_FOUND, &brdp->state);
- return 0;
-err_unmap:
- iounmap(brdp->membase);
- brdp->membase = NULL;
-err_reg:
- release_region(brdp->iobase, brdp->iosize);
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-/*
- * Try to find an ONboard, Brumby or Stallion board and initialize it.
- * This handles only these board types.
- */
-
-static int stli_initonb(struct stlibrd *brdp)
-{
- cdkonbsig_t sig;
- cdkonbsig_t __iomem *sigsp;
- char *name;
- int i, retval;
-
-/*
- * Do a basic sanity check on the IO and memory addresses.
- */
- if (brdp->iobase == 0 || brdp->memaddr == 0) {
- retval = -ENODEV;
- goto err;
- }
-
- brdp->iosize = ONB_IOSIZE;
-
- if (!request_region(brdp->iobase, brdp->iosize, "istallion")) {
- retval = -EIO;
- goto err;
- }
-
-/*
- * Based on the specific board type setup the common vars to access
- * and enable shared memory. Set all board specific information now
- * as well.
- */
- switch (brdp->brdtype) {
- case BRD_ONBOARD:
- case BRD_ONBOARD2:
- brdp->memsize = ONB_MEMSIZE;
- brdp->pagesize = ONB_ATPAGESIZE;
- brdp->init = stli_onbinit;
- brdp->enable = stli_onbenable;
- brdp->reenable = stli_onbenable;
- brdp->disable = stli_onbdisable;
- brdp->getmemptr = stli_onbgetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_onbreset;
- if (brdp->memaddr > 0x100000)
- brdp->enabval = ONB_MEMENABHI;
- else
- brdp->enabval = ONB_MEMENABLO;
- name = "serial(ONBoard)";
- break;
-
- case BRD_ONBOARDE:
- brdp->memsize = ONB_EIMEMSIZE;
- brdp->pagesize = ONB_EIPAGESIZE;
- brdp->init = stli_onbeinit;
- brdp->enable = stli_onbeenable;
- brdp->reenable = stli_onbeenable;
- brdp->disable = stli_onbedisable;
- brdp->getmemptr = stli_onbegetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_onbereset;
- name = "serial(ONBoard/E)";
- break;
-
- case BRD_BRUMBY4:
- brdp->memsize = BBY_MEMSIZE;
- brdp->pagesize = BBY_PAGESIZE;
- brdp->init = stli_bbyinit;
- brdp->enable = NULL;
- brdp->reenable = NULL;
- brdp->disable = NULL;
- brdp->getmemptr = stli_bbygetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_bbyreset;
- name = "serial(Brumby)";
- break;
-
- case BRD_STALLION:
- brdp->memsize = STAL_MEMSIZE;
- brdp->pagesize = STAL_PAGESIZE;
- brdp->init = stli_stalinit;
- brdp->enable = NULL;
- brdp->reenable = NULL;
- brdp->disable = NULL;
- brdp->getmemptr = stli_stalgetmemptr;
- brdp->intr = stli_ecpintr;
- brdp->reset = stli_stalreset;
- name = "serial(Stallion)";
- break;
-
- default:
- retval = -EINVAL;
- goto err_reg;
- }
-
-/*
- * The per-board operations structure is all set up, so now let's go
- * and get the board operational. Firstly initialize board configuration
- * registers. Set the memory mapping info so we can get at the boards
- * shared memory.
- */
- EBRDINIT(brdp);
-
- brdp->membase = ioremap_nocache(brdp->memaddr, brdp->memsize);
- if (brdp->membase == NULL) {
- retval = -ENOMEM;
- goto err_reg;
- }
-
-/*
- * Now that all specific code is set up, enable the shared memory and
- * look for the a signature area that will tell us exactly what board
- * this is, and how many ports.
- */
- EBRDENABLE(brdp);
- sigsp = (cdkonbsig_t __iomem *) EBRDGETMEMPTR(brdp, CDK_SIGADDR);
- memcpy_fromio(&sig, sigsp, sizeof(cdkonbsig_t));
- EBRDDISABLE(brdp);
-
- if (sig.magic0 != cpu_to_le16(ONB_MAGIC0) ||
- sig.magic1 != cpu_to_le16(ONB_MAGIC1) ||
- sig.magic2 != cpu_to_le16(ONB_MAGIC2) ||
- sig.magic3 != cpu_to_le16(ONB_MAGIC3)) {
- retval = -ENODEV;
- goto err_unmap;
- }
-
-/*
- * Scan through the signature alive mask and calculate how many ports
- * there are on this board.
- */
- brdp->nrpanels = 1;
- if (sig.amask1) {
- brdp->nrports = 32;
- } else {
- for (i = 0; (i < 16); i++) {
- if (((sig.amask0 << i) & 0x8000) == 0)
- break;
- }
- brdp->nrports = i;
- }
- brdp->panels[0] = brdp->nrports;
-
-
- set_bit(BST_FOUND, &brdp->state);
- return 0;
-err_unmap:
- iounmap(brdp->membase);
- brdp->membase = NULL;
-err_reg:
- release_region(brdp->iobase, brdp->iosize);
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-/*
- * Start up a running board. This routine is only called after the
- * code has been down loaded to the board and is operational. It will
- * read in the memory map, and get the show on the road...
- */
-
-static int stli_startbrd(struct stlibrd *brdp)
-{
- cdkhdr_t __iomem *hdrp;
- cdkmem_t __iomem *memp;
- cdkasy_t __iomem *ap;
- unsigned long flags;
- unsigned int portnr, nrdevs, i;
- struct stliport *portp;
- int rc = 0;
- u32 memoff;
-
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- hdrp = (cdkhdr_t __iomem *) EBRDGETMEMPTR(brdp, CDK_CDKADDR);
- nrdevs = hdrp->nrdevs;
-
-#if 0
- printk("%s(%d): CDK version %d.%d.%d --> "
- "nrdevs=%d memp=%x hostp=%x slavep=%x\n",
- __FILE__, __LINE__, readb(&hdrp->ver_release), readb(&hdrp->ver_modification),
- readb(&hdrp->ver_fix), nrdevs, (int) readl(&hdrp->memp), readl(&hdrp->hostp),
- readl(&hdrp->slavep));
-#endif
-
- if (nrdevs < (brdp->nrports + 1)) {
- printk(KERN_ERR "istallion: slave failed to allocate memory for "
- "all devices, devices=%d\n", nrdevs);
- brdp->nrports = nrdevs - 1;
- }
- brdp->nrdevs = nrdevs;
- brdp->hostoffset = hdrp->hostp - CDK_CDKADDR;
- brdp->slaveoffset = hdrp->slavep - CDK_CDKADDR;
- brdp->bitsize = (nrdevs + 7) / 8;
- memoff = readl(&hdrp->memp);
- if (memoff > brdp->memsize) {
- printk(KERN_ERR "istallion: corrupted shared memory region?\n");
- rc = -EIO;
- goto stli_donestartup;
- }
- memp = (cdkmem_t __iomem *) EBRDGETMEMPTR(brdp, memoff);
- if (readw(&memp->dtype) != TYP_ASYNCTRL) {
- printk(KERN_ERR "istallion: no slave control device found\n");
- goto stli_donestartup;
- }
- memp++;
-
-/*
- * Cycle through memory allocation of each port. We are guaranteed to
- * have all ports inside the first page of slave window, so no need to
- * change pages while reading memory map.
- */
- for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++, memp++) {
- if (readw(&memp->dtype) != TYP_ASYNC)
- break;
- portp = brdp->ports[portnr];
- if (portp == NULL)
- break;
- portp->devnr = i;
- portp->addr = readl(&memp->offset);
- portp->reqbit = (unsigned char) (0x1 << (i * 8 / nrdevs));
- portp->portidx = (unsigned char) (i / 8);
- portp->portbit = (unsigned char) (0x1 << (i % 8));
- }
-
- writeb(0xff, &hdrp->slavereq);
-
-/*
- * For each port setup a local copy of the RX and TX buffer offsets
- * and sizes. We do this separate from the above, because we need to
- * move the shared memory page...
- */
- for (i = 1, portnr = 0; (i < nrdevs); i++, portnr++) {
- portp = brdp->ports[portnr];
- if (portp == NULL)
- break;
- if (portp->addr == 0)
- break;
- ap = (cdkasy_t __iomem *) EBRDGETMEMPTR(brdp, portp->addr);
- if (ap != NULL) {
- portp->rxsize = readw(&ap->rxq.size);
- portp->txsize = readw(&ap->txq.size);
- portp->rxoffset = readl(&ap->rxq.offset);
- portp->txoffset = readl(&ap->txq.offset);
- }
- }
-
-stli_donestartup:
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- if (rc == 0)
- set_bit(BST_STARTED, &brdp->state);
-
- if (! stli_timeron) {
- stli_timeron++;
- mod_timer(&stli_timerlist, STLI_TIMEOUT);
- }
-
- return rc;
-}
-
-/*****************************************************************************/
-
-/*
- * Probe and initialize the specified board.
- */
-
-static int __devinit stli_brdinit(struct stlibrd *brdp)
-{
- int retval;
-
- switch (brdp->brdtype) {
- case BRD_ECP:
- case BRD_ECPE:
- case BRD_ECPMC:
- case BRD_ECPPCI:
- retval = stli_initecp(brdp);
- break;
- case BRD_ONBOARD:
- case BRD_ONBOARDE:
- case BRD_ONBOARD2:
- case BRD_BRUMBY4:
- case BRD_STALLION:
- retval = stli_initonb(brdp);
- break;
- default:
- printk(KERN_ERR "istallion: board=%d is unknown board "
- "type=%d\n", brdp->brdnr, brdp->brdtype);
- retval = -ENODEV;
- }
-
- if (retval)
- return retval;
-
- stli_initports(brdp);
- printk(KERN_INFO "istallion: %s found, board=%d io=%x mem=%x "
- "nrpanels=%d nrports=%d\n", stli_brdnames[brdp->brdtype],
- brdp->brdnr, brdp->iobase, (int) brdp->memaddr,
- brdp->nrpanels, brdp->nrports);
- return 0;
-}
-
-#if STLI_EISAPROBE != 0
-/*****************************************************************************/
-
-/*
- * Probe around trying to find where the EISA boards shared memory
- * might be. This is a bit if hack, but it is the best we can do.
- */
-
-static int stli_eisamemprobe(struct stlibrd *brdp)
-{
- cdkecpsig_t ecpsig, __iomem *ecpsigp;
- cdkonbsig_t onbsig, __iomem *onbsigp;
- int i, foundit;
-
-/*
- * First up we reset the board, to get it into a known state. There
- * is only 2 board types here we need to worry about. Don;t use the
- * standard board init routine here, it programs up the shared
- * memory address, and we don't know it yet...
- */
- if (brdp->brdtype == BRD_ECPE) {
- outb(0x1, (brdp->iobase + ECP_EIBRDENAB));
- outb(ECP_EISTOP, (brdp->iobase + ECP_EICONFR));
- udelay(10);
- outb(ECP_EIDISABLE, (brdp->iobase + ECP_EICONFR));
- udelay(500);
- stli_ecpeienable(brdp);
- } else if (brdp->brdtype == BRD_ONBOARDE) {
- outb(0x1, (brdp->iobase + ONB_EIBRDENAB));
- outb(ONB_EISTOP, (brdp->iobase + ONB_EICONFR));
- udelay(10);
- outb(ONB_EIDISABLE, (brdp->iobase + ONB_EICONFR));
- mdelay(100);
- outb(0x1, brdp->iobase);
- mdelay(1);
- stli_onbeenable(brdp);
- } else {
- return -ENODEV;
- }
-
- foundit = 0;
- brdp->memsize = ECP_MEMSIZE;
-
-/*
- * Board shared memory is enabled, so now we have a poke around and
- * see if we can find it.
- */
- for (i = 0; (i < stli_eisamempsize); i++) {
- brdp->memaddr = stli_eisamemprobeaddrs[i];
- brdp->membase = ioremap_nocache(brdp->memaddr, brdp->memsize);
- if (brdp->membase == NULL)
- continue;
-
- if (brdp->brdtype == BRD_ECPE) {
- ecpsigp = stli_ecpeigetmemptr(brdp,
- CDK_SIGADDR, __LINE__);
- memcpy_fromio(&ecpsig, ecpsigp, sizeof(cdkecpsig_t));
- if (ecpsig.magic == cpu_to_le32(ECP_MAGIC))
- foundit = 1;
- } else {
- onbsigp = (cdkonbsig_t __iomem *) stli_onbegetmemptr(brdp,
- CDK_SIGADDR, __LINE__);
- memcpy_fromio(&onbsig, onbsigp, sizeof(cdkonbsig_t));
- if ((onbsig.magic0 == cpu_to_le16(ONB_MAGIC0)) &&
- (onbsig.magic1 == cpu_to_le16(ONB_MAGIC1)) &&
- (onbsig.magic2 == cpu_to_le16(ONB_MAGIC2)) &&
- (onbsig.magic3 == cpu_to_le16(ONB_MAGIC3)))
- foundit = 1;
- }
-
- iounmap(brdp->membase);
- if (foundit)
- break;
- }
-
-/*
- * Regardless of whether we found the shared memory or not we must
- * disable the region. After that return success or failure.
- */
- if (brdp->brdtype == BRD_ECPE)
- stli_ecpeidisable(brdp);
- else
- stli_onbedisable(brdp);
-
- if (! foundit) {
- brdp->memaddr = 0;
- brdp->membase = NULL;
- printk(KERN_ERR "istallion: failed to probe shared memory "
- "region for %s in EISA slot=%d\n",
- stli_brdnames[brdp->brdtype], (brdp->iobase >> 12));
- return -ENODEV;
- }
- return 0;
-}
-#endif
-
-static int stli_getbrdnr(void)
-{
- unsigned int i;
-
- for (i = 0; i < STL_MAXBRDS; i++) {
- if (!stli_brds[i]) {
- if (i >= stli_nrbrds)
- stli_nrbrds = i + 1;
- return i;
- }
- }
- return -1;
-}
-
-#if STLI_EISAPROBE != 0
-/*****************************************************************************/
-
-/*
- * Probe around and try to find any EISA boards in system. The biggest
- * problem here is finding out what memory address is associated with
- * an EISA board after it is found. The registers of the ECPE and
- * ONboardE are not readable - so we can't read them from there. We
- * don't have access to the EISA CMOS (or EISA BIOS) so we don't
- * actually have any way to find out the real value. The best we can
- * do is go probing around in the usual places hoping we can find it.
- */
-
-static int __init stli_findeisabrds(void)
-{
- struct stlibrd *brdp;
- unsigned int iobase, eid, i;
- int brdnr, found = 0;
-
-/*
- * Firstly check if this is an EISA system. If this is not an EISA system then
- * don't bother going any further!
- */
- if (EISA_bus)
- return 0;
-
-/*
- * Looks like an EISA system, so go searching for EISA boards.
- */
- for (iobase = 0x1000; (iobase <= 0xc000); iobase += 0x1000) {
- outb(0xff, (iobase + 0xc80));
- eid = inb(iobase + 0xc80);
- eid |= inb(iobase + 0xc81) << 8;
- if (eid != STL_EISAID)
- continue;
-
-/*
- * We have found a board. Need to check if this board was
- * statically configured already (just in case!).
- */
- for (i = 0; (i < STL_MAXBRDS); i++) {
- brdp = stli_brds[i];
- if (brdp == NULL)
- continue;
- if (brdp->iobase == iobase)
- break;
- }
- if (i < STL_MAXBRDS)
- continue;
-
-/*
- * We have found a Stallion board and it is not configured already.
- * Allocate a board structure and initialize it.
- */
- if ((brdp = stli_allocbrd()) == NULL)
- return found ? : -ENOMEM;
- brdnr = stli_getbrdnr();
- if (brdnr < 0)
- return found ? : -ENOMEM;
- brdp->brdnr = (unsigned int)brdnr;
- eid = inb(iobase + 0xc82);
- if (eid == ECP_EISAID)
- brdp->brdtype = BRD_ECPE;
- else if (eid == ONB_EISAID)
- brdp->brdtype = BRD_ONBOARDE;
- else
- brdp->brdtype = BRD_UNKNOWN;
- brdp->iobase = iobase;
- outb(0x1, (iobase + 0xc84));
- if (stli_eisamemprobe(brdp))
- outb(0, (iobase + 0xc84));
- if (stli_brdinit(brdp) < 0) {
- kfree(brdp);
- continue;
- }
-
- stli_brds[brdp->brdnr] = brdp;
- found++;
-
- for (i = 0; i < brdp->nrports; i++)
- tty_register_device(stli_serial,
- brdp->brdnr * STL_MAXPORTS + i, NULL);
- }
-
- return found;
-}
-#else
-static inline int stli_findeisabrds(void) { return 0; }
-#endif
-
-/*****************************************************************************/
-
-/*
- * Find the next available board number that is free.
- */
-
-/*****************************************************************************/
-
-/*
- * We have a Stallion board. Allocate a board structure and
- * initialize it. Read its IO and MEMORY resources from PCI
- * configuration space.
- */
-
-static int __devinit stli_pciprobe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct stlibrd *brdp;
- unsigned int i;
- int brdnr, retval = -EIO;
-
- retval = pci_enable_device(pdev);
- if (retval)
- goto err;
- brdp = stli_allocbrd();
- if (brdp == NULL) {
- retval = -ENOMEM;
- goto err;
- }
- mutex_lock(&stli_brdslock);
- brdnr = stli_getbrdnr();
- if (brdnr < 0) {
- printk(KERN_INFO "istallion: too many boards found, "
- "maximum supported %d\n", STL_MAXBRDS);
- mutex_unlock(&stli_brdslock);
- retval = -EIO;
- goto err_fr;
- }
- brdp->brdnr = (unsigned int)brdnr;
- stli_brds[brdp->brdnr] = brdp;
- mutex_unlock(&stli_brdslock);
- brdp->brdtype = BRD_ECPPCI;
-/*
- * We have all resources from the board, so lets setup the actual
- * board structure now.
- */
- brdp->iobase = pci_resource_start(pdev, 3);
- brdp->memaddr = pci_resource_start(pdev, 2);
- retval = stli_brdinit(brdp);
- if (retval)
- goto err_null;
-
- set_bit(BST_PROBED, &brdp->state);
- pci_set_drvdata(pdev, brdp);
-
- EBRDENABLE(brdp);
- brdp->enable = NULL;
- brdp->disable = NULL;
-
- for (i = 0; i < brdp->nrports; i++)
- tty_register_device(stli_serial, brdp->brdnr * STL_MAXPORTS + i,
- &pdev->dev);
-
- return 0;
-err_null:
- stli_brds[brdp->brdnr] = NULL;
-err_fr:
- kfree(brdp);
-err:
- return retval;
-}
-
-static void __devexit stli_pciremove(struct pci_dev *pdev)
-{
- struct stlibrd *brdp = pci_get_drvdata(pdev);
-
- stli_cleanup_ports(brdp);
-
- iounmap(brdp->membase);
- if (brdp->iosize > 0)
- release_region(brdp->iobase, brdp->iosize);
-
- stli_brds[brdp->brdnr] = NULL;
- kfree(brdp);
-}
-
-static struct pci_driver stli_pcidriver = {
- .name = "istallion",
- .id_table = istallion_pci_tbl,
- .probe = stli_pciprobe,
- .remove = __devexit_p(stli_pciremove)
-};
-/*****************************************************************************/
-
-/*
- * Allocate a new board structure. Fill out the basic info in it.
- */
-
-static struct stlibrd *stli_allocbrd(void)
-{
- struct stlibrd *brdp;
-
- brdp = kzalloc(sizeof(struct stlibrd), GFP_KERNEL);
- if (!brdp) {
- printk(KERN_ERR "istallion: failed to allocate memory "
- "(size=%Zd)\n", sizeof(struct stlibrd));
- return NULL;
- }
- brdp->magic = STLI_BOARDMAGIC;
- return brdp;
-}
-
-/*****************************************************************************/
-
-/*
- * Scan through all the boards in the configuration and see what we
- * can find.
- */
-
-static int __init stli_initbrds(void)
-{
- struct stlibrd *brdp, *nxtbrdp;
- struct stlconf conf;
- unsigned int i, j, found = 0;
- int retval;
-
- for (stli_nrbrds = 0; stli_nrbrds < ARRAY_SIZE(stli_brdsp);
- stli_nrbrds++) {
- memset(&conf, 0, sizeof(conf));
- if (stli_parsebrd(&conf, stli_brdsp[stli_nrbrds]) == 0)
- continue;
- if ((brdp = stli_allocbrd()) == NULL)
- continue;
- brdp->brdnr = stli_nrbrds;
- brdp->brdtype = conf.brdtype;
- brdp->iobase = conf.ioaddr1;
- brdp->memaddr = conf.memaddr;
- if (stli_brdinit(brdp) < 0) {
- kfree(brdp);
- continue;
- }
- stli_brds[brdp->brdnr] = brdp;
- found++;
-
- for (i = 0; i < brdp->nrports; i++)
- tty_register_device(stli_serial,
- brdp->brdnr * STL_MAXPORTS + i, NULL);
- }
-
- retval = stli_findeisabrds();
- if (retval > 0)
- found += retval;
-
-/*
- * All found boards are initialized. Now for a little optimization, if
- * no boards are sharing the "shared memory" regions then we can just
- * leave them all enabled. This is in fact the usual case.
- */
- stli_shared = 0;
- if (stli_nrbrds > 1) {
- for (i = 0; (i < stli_nrbrds); i++) {
- brdp = stli_brds[i];
- if (brdp == NULL)
- continue;
- for (j = i + 1; (j < stli_nrbrds); j++) {
- nxtbrdp = stli_brds[j];
- if (nxtbrdp == NULL)
- continue;
- if ((brdp->membase >= nxtbrdp->membase) &&
- (brdp->membase <= (nxtbrdp->membase +
- nxtbrdp->memsize - 1))) {
- stli_shared++;
- break;
- }
- }
- }
- }
-
- if (stli_shared == 0) {
- for (i = 0; (i < stli_nrbrds); i++) {
- brdp = stli_brds[i];
- if (brdp == NULL)
- continue;
- if (test_bit(BST_FOUND, &brdp->state)) {
- EBRDENABLE(brdp);
- brdp->enable = NULL;
- brdp->disable = NULL;
- }
- }
- }
-
- retval = pci_register_driver(&stli_pcidriver);
- if (retval && found == 0) {
- printk(KERN_ERR "Neither isa nor eisa cards found nor pci "
- "driver can be registered!\n");
- goto err;
- }
-
- return 0;
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-/*
- * Code to handle an "staliomem" read operation. This device is the
- * contents of the board shared memory. It is used for down loading
- * the slave image (and debugging :-)
- */
-
-static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, loff_t *offp)
-{
- unsigned long flags;
- void __iomem *memptr;
- struct stlibrd *brdp;
- unsigned int brdnr;
- int size, n;
- void *p;
- loff_t off = *offp;
-
- brdnr = iminor(fp->f_path.dentry->d_inode);
- if (brdnr >= stli_nrbrds)
- return -ENODEV;
- brdp = stli_brds[brdnr];
- if (brdp == NULL)
- return -ENODEV;
- if (brdp->state == 0)
- return -ENODEV;
- if (off >= brdp->memsize || off + count < off)
- return 0;
-
- size = min(count, (size_t)(brdp->memsize - off));
-
- /*
- * Copy the data a page at a time
- */
-
- p = (void *)__get_free_page(GFP_KERNEL);
- if(p == NULL)
- return -ENOMEM;
-
- while (size > 0) {
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- memptr = EBRDGETMEMPTR(brdp, off);
- n = min(size, (int)(brdp->pagesize - (((unsigned long) off) % brdp->pagesize)));
- n = min(n, (int)PAGE_SIZE);
- memcpy_fromio(p, memptr, n);
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
- if (copy_to_user(buf, p, n)) {
- count = -EFAULT;
- goto out;
- }
- off += n;
- buf += n;
- size -= n;
- }
-out:
- *offp = off;
- free_page((unsigned long)p);
- return count;
-}
-
-/*****************************************************************************/
-
-/*
- * Code to handle an "staliomem" write operation. This device is the
- * contents of the board shared memory. It is used for down loading
- * the slave image (and debugging :-)
- *
- * FIXME: copy under lock
- */
-
-static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t count, loff_t *offp)
-{
- unsigned long flags;
- void __iomem *memptr;
- struct stlibrd *brdp;
- char __user *chbuf;
- unsigned int brdnr;
- int size, n;
- void *p;
- loff_t off = *offp;
-
- brdnr = iminor(fp->f_path.dentry->d_inode);
-
- if (brdnr >= stli_nrbrds)
- return -ENODEV;
- brdp = stli_brds[brdnr];
- if (brdp == NULL)
- return -ENODEV;
- if (brdp->state == 0)
- return -ENODEV;
- if (off >= brdp->memsize || off + count < off)
- return 0;
-
- chbuf = (char __user *) buf;
- size = min(count, (size_t)(brdp->memsize - off));
-
- /*
- * Copy the data a page at a time
- */
-
- p = (void *)__get_free_page(GFP_KERNEL);
- if(p == NULL)
- return -ENOMEM;
-
- while (size > 0) {
- n = min(size, (int)(brdp->pagesize - (((unsigned long) off) % brdp->pagesize)));
- n = min(n, (int)PAGE_SIZE);
- if (copy_from_user(p, chbuf, n)) {
- if (count == 0)
- count = -EFAULT;
- goto out;
- }
- spin_lock_irqsave(&brd_lock, flags);
- EBRDENABLE(brdp);
- memptr = EBRDGETMEMPTR(brdp, off);
- memcpy_toio(memptr, p, n);
- EBRDDISABLE(brdp);
- spin_unlock_irqrestore(&brd_lock, flags);
- off += n;
- chbuf += n;
- size -= n;
- }
-out:
- free_page((unsigned long) p);
- *offp = off;
- return count;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the board stats structure to user app.
- */
-
-static int stli_getbrdstats(combrd_t __user *bp)
-{
- struct stlibrd *brdp;
- unsigned int i;
-
- if (copy_from_user(&stli_brdstats, bp, sizeof(combrd_t)))
- return -EFAULT;
- if (stli_brdstats.brd >= STL_MAXBRDS)
- return -ENODEV;
- brdp = stli_brds[stli_brdstats.brd];
- if (brdp == NULL)
- return -ENODEV;
-
- memset(&stli_brdstats, 0, sizeof(combrd_t));
-
- stli_brdstats.brd = brdp->brdnr;
- stli_brdstats.type = brdp->brdtype;
- stli_brdstats.hwid = 0;
- stli_brdstats.state = brdp->state;
- stli_brdstats.ioaddr = brdp->iobase;
- stli_brdstats.memaddr = brdp->memaddr;
- stli_brdstats.nrpanels = brdp->nrpanels;
- stli_brdstats.nrports = brdp->nrports;
- for (i = 0; (i < brdp->nrpanels); i++) {
- stli_brdstats.panels[i].panel = i;
- stli_brdstats.panels[i].hwid = brdp->panelids[i];
- stli_brdstats.panels[i].nrports = brdp->panels[i];
- }
-
- if (copy_to_user(bp, &stli_brdstats, sizeof(combrd_t)))
- return -EFAULT;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Resolve the referenced port number into a port struct pointer.
- */
-
-static struct stliport *stli_getport(unsigned int brdnr, unsigned int panelnr,
- unsigned int portnr)
-{
- struct stlibrd *brdp;
- unsigned int i;
-
- if (brdnr >= STL_MAXBRDS)
- return NULL;
- brdp = stli_brds[brdnr];
- if (brdp == NULL)
- return NULL;
- for (i = 0; (i < panelnr); i++)
- portnr += brdp->panels[i];
- if (portnr >= brdp->nrports)
- return NULL;
- return brdp->ports[portnr];
-}
-
-/*****************************************************************************/
-
-/*
- * Return the port stats structure to user app. A NULL port struct
- * pointer passed in means that we need to find out from the app
- * what port to get stats for (used through board control device).
- */
-
-static int stli_portcmdstats(struct tty_struct *tty, struct stliport *portp)
-{
- unsigned long flags;
- struct stlibrd *brdp;
- int rc;
-
- memset(&stli_comstats, 0, sizeof(comstats_t));
-
- if (portp == NULL)
- return -ENODEV;
- brdp = stli_brds[portp->brdnr];
- if (brdp == NULL)
- return -ENODEV;
-
- mutex_lock(&portp->port.mutex);
- if (test_bit(BST_STARTED, &brdp->state)) {
- if ((rc = stli_cmdwait(brdp, portp, A_GETSTATS,
- &stli_cdkstats, sizeof(asystats_t), 1)) < 0) {
- mutex_unlock(&portp->port.mutex);
- return rc;
- }
- } else {
- memset(&stli_cdkstats, 0, sizeof(asystats_t));
- }
-
- stli_comstats.brd = portp->brdnr;
- stli_comstats.panel = portp->panelnr;
- stli_comstats.port = portp->portnr;
- stli_comstats.state = portp->state;
- stli_comstats.flags = portp->port.flags;
-
- spin_lock_irqsave(&brd_lock, flags);
- if (tty != NULL) {
- if (portp->port.tty == tty) {
- stli_comstats.ttystate = tty->flags;
- stli_comstats.rxbuffered = -1;
- if (tty->termios != NULL) {
- stli_comstats.cflags = tty->termios->c_cflag;
- stli_comstats.iflags = tty->termios->c_iflag;
- stli_comstats.oflags = tty->termios->c_oflag;
- stli_comstats.lflags = tty->termios->c_lflag;
- }
- }
- }
- spin_unlock_irqrestore(&brd_lock, flags);
-
- stli_comstats.txtotal = stli_cdkstats.txchars;
- stli_comstats.rxtotal = stli_cdkstats.rxchars + stli_cdkstats.ringover;
- stli_comstats.txbuffered = stli_cdkstats.txringq;
- stli_comstats.rxbuffered += stli_cdkstats.rxringq;
- stli_comstats.rxoverrun = stli_cdkstats.overruns;
- stli_comstats.rxparity = stli_cdkstats.parity;
- stli_comstats.rxframing = stli_cdkstats.framing;
- stli_comstats.rxlost = stli_cdkstats.ringover;
- stli_comstats.rxbreaks = stli_cdkstats.rxbreaks;
- stli_comstats.txbreaks = stli_cdkstats.txbreaks;
- stli_comstats.txxon = stli_cdkstats.txstart;
- stli_comstats.txxoff = stli_cdkstats.txstop;
- stli_comstats.rxxon = stli_cdkstats.rxstart;
- stli_comstats.rxxoff = stli_cdkstats.rxstop;
- stli_comstats.rxrtsoff = stli_cdkstats.rtscnt / 2;
- stli_comstats.rxrtson = stli_cdkstats.rtscnt - stli_comstats.rxrtsoff;
- stli_comstats.modem = stli_cdkstats.dcdcnt;
- stli_comstats.hwid = stli_cdkstats.hwid;
- stli_comstats.signals = stli_mktiocm(stli_cdkstats.signals);
- mutex_unlock(&portp->port.mutex);
-
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the port stats structure to user app. A NULL port struct
- * pointer passed in means that we need to find out from the app
- * what port to get stats for (used through board control device).
- */
-
-static int stli_getportstats(struct tty_struct *tty, struct stliport *portp,
- comstats_t __user *cp)
-{
- struct stlibrd *brdp;
- int rc;
-
- if (!portp) {
- if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t)))
- return -EFAULT;
- portp = stli_getport(stli_comstats.brd, stli_comstats.panel,
- stli_comstats.port);
- if (!portp)
- return -ENODEV;
- }
-
- brdp = stli_brds[portp->brdnr];
- if (!brdp)
- return -ENODEV;
-
- if ((rc = stli_portcmdstats(tty, portp)) < 0)
- return rc;
-
- return copy_to_user(cp, &stli_comstats, sizeof(comstats_t)) ?
- -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Clear the port stats structure. We also return it zeroed out...
- */
-
-static int stli_clrportstats(struct stliport *portp, comstats_t __user *cp)
-{
- struct stlibrd *brdp;
- int rc;
-
- if (!portp) {
- if (copy_from_user(&stli_comstats, cp, sizeof(comstats_t)))
- return -EFAULT;
- portp = stli_getport(stli_comstats.brd, stli_comstats.panel,
- stli_comstats.port);
- if (!portp)
- return -ENODEV;
- }
-
- brdp = stli_brds[portp->brdnr];
- if (!brdp)
- return -ENODEV;
-
- mutex_lock(&portp->port.mutex);
-
- if (test_bit(BST_STARTED, &brdp->state)) {
- if ((rc = stli_cmdwait(brdp, portp, A_CLEARSTATS, NULL, 0, 0)) < 0) {
- mutex_unlock(&portp->port.mutex);
- return rc;
- }
- }
-
- memset(&stli_comstats, 0, sizeof(comstats_t));
- stli_comstats.brd = portp->brdnr;
- stli_comstats.panel = portp->panelnr;
- stli_comstats.port = portp->portnr;
- mutex_unlock(&portp->port.mutex);
-
- if (copy_to_user(cp, &stli_comstats, sizeof(comstats_t)))
- return -EFAULT;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the entire driver ports structure to a user app.
- */
-
-static int stli_getportstruct(struct stliport __user *arg)
-{
- struct stliport stli_dummyport;
- struct stliport *portp;
-
- if (copy_from_user(&stli_dummyport, arg, sizeof(struct stliport)))
- return -EFAULT;
- portp = stli_getport(stli_dummyport.brdnr, stli_dummyport.panelnr,
- stli_dummyport.portnr);
- if (!portp)
- return -ENODEV;
- if (copy_to_user(arg, portp, sizeof(struct stliport)))
- return -EFAULT;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the entire driver board structure to a user app.
- */
-
-static int stli_getbrdstruct(struct stlibrd __user *arg)
-{
- struct stlibrd stli_dummybrd;
- struct stlibrd *brdp;
-
- if (copy_from_user(&stli_dummybrd, arg, sizeof(struct stlibrd)))
- return -EFAULT;
- if (stli_dummybrd.brdnr >= STL_MAXBRDS)
- return -ENODEV;
- brdp = stli_brds[stli_dummybrd.brdnr];
- if (!brdp)
- return -ENODEV;
- if (copy_to_user(arg, brdp, sizeof(struct stlibrd)))
- return -EFAULT;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * The "staliomem" device is also required to do some special operations on
- * the board. We need to be able to send an interrupt to the board,
- * reset it, and start/stop it.
- */
-
-static long stli_memioctl(struct file *fp, unsigned int cmd, unsigned long arg)
-{
- struct stlibrd *brdp;
- int brdnr, rc, done;
- void __user *argp = (void __user *)arg;
-
-/*
- * First up handle the board independent ioctls.
- */
- done = 0;
- rc = 0;
-
- switch (cmd) {
- case COM_GETPORTSTATS:
- rc = stli_getportstats(NULL, NULL, argp);
- done++;
- break;
- case COM_CLRPORTSTATS:
- rc = stli_clrportstats(NULL, argp);
- done++;
- break;
- case COM_GETBRDSTATS:
- rc = stli_getbrdstats(argp);
- done++;
- break;
- case COM_READPORT:
- rc = stli_getportstruct(argp);
- done++;
- break;
- case COM_READBOARD:
- rc = stli_getbrdstruct(argp);
- done++;
- break;
- }
- if (done)
- return rc;
-
-/*
- * Now handle the board specific ioctls. These all depend on the
- * minor number of the device they were called from.
- */
- brdnr = iminor(fp->f_dentry->d_inode);
- if (brdnr >= STL_MAXBRDS)
- return -ENODEV;
- brdp = stli_brds[brdnr];
- if (!brdp)
- return -ENODEV;
- if (brdp->state == 0)
- return -ENODEV;
-
- switch (cmd) {
- case STL_BINTR:
- EBRDINTR(brdp);
- break;
- case STL_BSTART:
- rc = stli_startbrd(brdp);
- break;
- case STL_BSTOP:
- clear_bit(BST_STARTED, &brdp->state);
- break;
- case STL_BRESET:
- clear_bit(BST_STARTED, &brdp->state);
- EBRDRESET(brdp);
- if (stli_shared == 0) {
- if (brdp->reenable != NULL)
- (* brdp->reenable)(brdp);
- }
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- return rc;
-}
-
-static const struct tty_operations stli_ops = {
- .open = stli_open,
- .close = stli_close,
- .write = stli_write,
- .put_char = stli_putchar,
- .flush_chars = stli_flushchars,
- .write_room = stli_writeroom,
- .chars_in_buffer = stli_charsinbuffer,
- .ioctl = stli_ioctl,
- .set_termios = stli_settermios,
- .throttle = stli_throttle,
- .unthrottle = stli_unthrottle,
- .stop = stli_stop,
- .start = stli_start,
- .hangup = stli_hangup,
- .flush_buffer = stli_flushbuffer,
- .break_ctl = stli_breakctl,
- .wait_until_sent = stli_waituntilsent,
- .send_xchar = stli_sendxchar,
- .tiocmget = stli_tiocmget,
- .tiocmset = stli_tiocmset,
- .proc_fops = &stli_proc_fops,
-};
-
-static const struct tty_port_operations stli_port_ops = {
- .carrier_raised = stli_carrier_raised,
- .dtr_rts = stli_dtr_rts,
- .activate = stli_activate,
- .shutdown = stli_shutdown,
-};
-
-/*****************************************************************************/
-/*
- * Loadable module initialization stuff.
- */
-
-static void istallion_cleanup_isa(void)
-{
- struct stlibrd *brdp;
- unsigned int j;
-
- for (j = 0; (j < stli_nrbrds); j++) {
- if ((brdp = stli_brds[j]) == NULL ||
- test_bit(BST_PROBED, &brdp->state))
- continue;
-
- stli_cleanup_ports(brdp);
-
- iounmap(brdp->membase);
- if (brdp->iosize > 0)
- release_region(brdp->iobase, brdp->iosize);
- kfree(brdp);
- stli_brds[j] = NULL;
- }
-}
-
-static int __init istallion_module_init(void)
-{
- unsigned int i;
- int retval;
-
- printk(KERN_INFO "%s: version %s\n", stli_drvtitle, stli_drvversion);
-
- spin_lock_init(&stli_lock);
- spin_lock_init(&brd_lock);
-
- stli_txcookbuf = kmalloc(STLI_TXBUFSIZE, GFP_KERNEL);
- if (!stli_txcookbuf) {
- printk(KERN_ERR "istallion: failed to allocate memory "
- "(size=%d)\n", STLI_TXBUFSIZE);
- retval = -ENOMEM;
- goto err;
- }
-
- stli_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
- if (!stli_serial) {
- retval = -ENOMEM;
- goto err_free;
- }
-
- stli_serial->owner = THIS_MODULE;
- stli_serial->driver_name = stli_drvname;
- stli_serial->name = stli_serialname;
- stli_serial->major = STL_SERIALMAJOR;
- stli_serial->minor_start = 0;
- stli_serial->type = TTY_DRIVER_TYPE_SERIAL;
- stli_serial->subtype = SERIAL_TYPE_NORMAL;
- stli_serial->init_termios = stli_deftermios;
- stli_serial->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(stli_serial, &stli_ops);
-
- retval = tty_register_driver(stli_serial);
- if (retval) {
- printk(KERN_ERR "istallion: failed to register serial driver\n");
- goto err_ttyput;
- }
-
- retval = stli_initbrds();
- if (retval)
- goto err_ttyunr;
-
-/*
- * Set up a character driver for the shared memory region. We need this
- * to down load the slave code image. Also it is a useful debugging tool.
- */
- retval = register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stli_fsiomem);
- if (retval) {
- printk(KERN_ERR "istallion: failed to register serial memory "
- "device\n");
- goto err_deinit;
- }
-
- istallion_class = class_create(THIS_MODULE, "staliomem");
- for (i = 0; i < 4; i++)
- device_create(istallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i),
- NULL, "staliomem%d", i);
-
- return 0;
-err_deinit:
- pci_unregister_driver(&stli_pcidriver);
- istallion_cleanup_isa();
-err_ttyunr:
- tty_unregister_driver(stli_serial);
-err_ttyput:
- put_tty_driver(stli_serial);
-err_free:
- kfree(stli_txcookbuf);
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-static void __exit istallion_module_exit(void)
-{
- unsigned int j;
-
- printk(KERN_INFO "Unloading %s: version %s\n", stli_drvtitle,
- stli_drvversion);
-
- if (stli_timeron) {
- stli_timeron = 0;
- del_timer_sync(&stli_timerlist);
- }
-
- unregister_chrdev(STL_SIOMEMMAJOR, "staliomem");
-
- for (j = 0; j < 4; j++)
- device_destroy(istallion_class, MKDEV(STL_SIOMEMMAJOR, j));
- class_destroy(istallion_class);
-
- pci_unregister_driver(&stli_pcidriver);
- istallion_cleanup_isa();
-
- tty_unregister_driver(stli_serial);
- put_tty_driver(stli_serial);
-
- kfree(stli_txcookbuf);
-}
-
-module_init(istallion_module_init);
-module_exit(istallion_module_exit);
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
deleted file mode 100644
index 107b0bd58d1..00000000000
--- a/drivers/char/moxa.c
+++ /dev/null
@@ -1,2092 +0,0 @@
-/*****************************************************************************/
-/*
- * moxa.c -- MOXA Intellio family multiport serial driver.
- *
- * Copyright (C) 1999-2000 Moxa Technologies (support@moxa.com).
- * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-/*
- * MOXA Intellio Series Driver
- * for : LINUX
- * date : 1999/1/7
- * version : 5.1
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include <linux/firmware.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/serial.h>
-#include <linux/tty_driver.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-#include <linux/slab.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include "moxa.h"
-
-#define MOXA_VERSION "6.0k"
-
-#define MOXA_FW_HDRLEN 32
-
-#define MOXAMAJOR 172
-
-#define MAX_BOARDS 4 /* Don't change this value */
-#define MAX_PORTS_PER_BOARD 32 /* Don't change this value */
-#define MAX_PORTS (MAX_BOARDS * MAX_PORTS_PER_BOARD)
-
-#define MOXA_IS_320(brd) ((brd)->boardType == MOXA_BOARD_C320_ISA || \
- (brd)->boardType == MOXA_BOARD_C320_PCI)
-
-/*
- * Define the Moxa PCI vendor and device IDs.
- */
-#define MOXA_BUS_TYPE_ISA 0
-#define MOXA_BUS_TYPE_PCI 1
-
-enum {
- MOXA_BOARD_C218_PCI = 1,
- MOXA_BOARD_C218_ISA,
- MOXA_BOARD_C320_PCI,
- MOXA_BOARD_C320_ISA,
- MOXA_BOARD_CP204J,
-};
-
-static char *moxa_brdname[] =
-{
- "C218 Turbo PCI series",
- "C218 Turbo ISA series",
- "C320 Turbo PCI series",
- "C320 Turbo ISA series",
- "CP-204J series",
-};
-
-#ifdef CONFIG_PCI
-static struct pci_device_id moxa_pcibrds[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C218),
- .driver_data = MOXA_BOARD_C218_PCI },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C320),
- .driver_data = MOXA_BOARD_C320_PCI },
- { PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP204J),
- .driver_data = MOXA_BOARD_CP204J },
- { 0 }
-};
-MODULE_DEVICE_TABLE(pci, moxa_pcibrds);
-#endif /* CONFIG_PCI */
-
-struct moxa_port;
-
-static struct moxa_board_conf {
- int boardType;
- int numPorts;
- int busType;
-
- unsigned int ready;
-
- struct moxa_port *ports;
-
- void __iomem *basemem;
- void __iomem *intNdx;
- void __iomem *intPend;
- void __iomem *intTable;
-} moxa_boards[MAX_BOARDS];
-
-struct mxser_mstatus {
- tcflag_t cflag;
- int cts;
- int dsr;
- int ri;
- int dcd;
-};
-
-struct moxaq_str {
- int inq;
- int outq;
-};
-
-struct moxa_port {
- struct tty_port port;
- struct moxa_board_conf *board;
- void __iomem *tableAddr;
-
- int type;
- int cflag;
- unsigned long statusflags;
-
- u8 DCDState; /* Protected by the port lock */
- u8 lineCtrl;
- u8 lowChkFlag;
-};
-
-struct mon_str {
- int tick;
- int rxcnt[MAX_PORTS];
- int txcnt[MAX_PORTS];
-};
-
-/* statusflags */
-#define TXSTOPPED 1
-#define LOWWAIT 2
-#define EMPTYWAIT 3
-
-#define SERIAL_DO_RESTART
-
-#define WAKEUP_CHARS 256
-
-static int ttymajor = MOXAMAJOR;
-static struct mon_str moxaLog;
-static unsigned int moxaFuncTout = HZ / 2;
-static unsigned int moxaLowWaterChk;
-static DEFINE_MUTEX(moxa_openlock);
-static DEFINE_SPINLOCK(moxa_lock);
-
-static unsigned long baseaddr[MAX_BOARDS];
-static unsigned int type[MAX_BOARDS];
-static unsigned int numports[MAX_BOARDS];
-
-MODULE_AUTHOR("William Chen");
-MODULE_DESCRIPTION("MOXA Intellio Family Multiport Board Device Driver");
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE("c218tunx.cod");
-MODULE_FIRMWARE("cp204unx.cod");
-MODULE_FIRMWARE("c320tunx.cod");
-
-module_param_array(type, uint, NULL, 0);
-MODULE_PARM_DESC(type, "card type: C218=2, C320=4");
-module_param_array(baseaddr, ulong, NULL, 0);
-MODULE_PARM_DESC(baseaddr, "base address");
-module_param_array(numports, uint, NULL, 0);
-MODULE_PARM_DESC(numports, "numports (ignored for C218)");
-
-module_param(ttymajor, int, 0);
-
-/*
- * static functions:
- */
-static int moxa_open(struct tty_struct *, struct file *);
-static void moxa_close(struct tty_struct *, struct file *);
-static int moxa_write(struct tty_struct *, const unsigned char *, int);
-static int moxa_write_room(struct tty_struct *);
-static void moxa_flush_buffer(struct tty_struct *);
-static int moxa_chars_in_buffer(struct tty_struct *);
-static void moxa_set_termios(struct tty_struct *, struct ktermios *);
-static void moxa_stop(struct tty_struct *);
-static void moxa_start(struct tty_struct *);
-static void moxa_hangup(struct tty_struct *);
-static int moxa_tiocmget(struct tty_struct *tty, struct file *file);
-static int moxa_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
-static void moxa_poll(unsigned long);
-static void moxa_set_tty_param(struct tty_struct *, struct ktermios *);
-static void moxa_shutdown(struct tty_port *);
-static int moxa_carrier_raised(struct tty_port *);
-static void moxa_dtr_rts(struct tty_port *, int);
-/*
- * moxa board interface functions:
- */
-static void MoxaPortEnable(struct moxa_port *);
-static void MoxaPortDisable(struct moxa_port *);
-static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t);
-static int MoxaPortGetLineOut(struct moxa_port *, int *, int *);
-static void MoxaPortLineCtrl(struct moxa_port *, int, int);
-static void MoxaPortFlowCtrl(struct moxa_port *, int, int, int, int, int);
-static int MoxaPortLineStatus(struct moxa_port *);
-static void MoxaPortFlushData(struct moxa_port *, int);
-static int MoxaPortWriteData(struct tty_struct *, const unsigned char *, int);
-static int MoxaPortReadData(struct moxa_port *);
-static int MoxaPortTxQueue(struct moxa_port *);
-static int MoxaPortRxQueue(struct moxa_port *);
-static int MoxaPortTxFree(struct moxa_port *);
-static void MoxaPortTxDisable(struct moxa_port *);
-static void MoxaPortTxEnable(struct moxa_port *);
-static int moxa_get_serial_info(struct moxa_port *, struct serial_struct __user *);
-static int moxa_set_serial_info(struct moxa_port *, struct serial_struct __user *);
-static void MoxaSetFifo(struct moxa_port *port, int enable);
-
-/*
- * I/O functions
- */
-
-static DEFINE_SPINLOCK(moxafunc_lock);
-
-static void moxa_wait_finish(void __iomem *ofsAddr)
-{
- unsigned long end = jiffies + moxaFuncTout;
-
- while (readw(ofsAddr + FuncCode) != 0)
- if (time_after(jiffies, end))
- return;
- if (readw(ofsAddr + FuncCode) != 0 && printk_ratelimit())
- printk(KERN_WARNING "moxa function expired\n");
-}
-
-static void moxafunc(void __iomem *ofsAddr, u16 cmd, u16 arg)
-{
- unsigned long flags;
- spin_lock_irqsave(&moxafunc_lock, flags);
- writew(arg, ofsAddr + FuncArg);
- writew(cmd, ofsAddr + FuncCode);
- moxa_wait_finish(ofsAddr);
- spin_unlock_irqrestore(&moxafunc_lock, flags);
-}
-
-static int moxafuncret(void __iomem *ofsAddr, u16 cmd, u16 arg)
-{
- unsigned long flags;
- u16 ret;
- spin_lock_irqsave(&moxafunc_lock, flags);
- writew(arg, ofsAddr + FuncArg);
- writew(cmd, ofsAddr + FuncCode);
- moxa_wait_finish(ofsAddr);
- ret = readw(ofsAddr + FuncArg);
- spin_unlock_irqrestore(&moxafunc_lock, flags);
- return ret;
-}
-
-static void moxa_low_water_check(void __iomem *ofsAddr)
-{
- u16 rptr, wptr, mask, len;
-
- if (readb(ofsAddr + FlagStat) & Xoff_state) {
- rptr = readw(ofsAddr + RXrptr);
- wptr = readw(ofsAddr + RXwptr);
- mask = readw(ofsAddr + RX_mask);
- len = (wptr - rptr) & mask;
- if (len <= Low_water)
- moxafunc(ofsAddr, FC_SendXon, 0);
- }
-}
-
-/*
- * TTY operations
- */
-
-static int moxa_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct moxa_port *ch = tty->driver_data;
- void __user *argp = (void __user *)arg;
- int status, ret = 0;
-
- if (tty->index == MAX_PORTS) {
- if (cmd != MOXA_GETDATACOUNT && cmd != MOXA_GET_IOQUEUE &&
- cmd != MOXA_GETMSTATUS)
- return -EINVAL;
- } else if (!ch)
- return -ENODEV;
-
- switch (cmd) {
- case MOXA_GETDATACOUNT:
- moxaLog.tick = jiffies;
- if (copy_to_user(argp, &moxaLog, sizeof(moxaLog)))
- ret = -EFAULT;
- break;
- case MOXA_FLUSH_QUEUE:
- MoxaPortFlushData(ch, arg);
- break;
- case MOXA_GET_IOQUEUE: {
- struct moxaq_str __user *argm = argp;
- struct moxaq_str tmp;
- struct moxa_port *p;
- unsigned int i, j;
-
- for (i = 0; i < MAX_BOARDS; i++) {
- p = moxa_boards[i].ports;
- for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) {
- memset(&tmp, 0, sizeof(tmp));
- spin_lock_bh(&moxa_lock);
- if (moxa_boards[i].ready) {
- tmp.inq = MoxaPortRxQueue(p);
- tmp.outq = MoxaPortTxQueue(p);
- }
- spin_unlock_bh(&moxa_lock);
- if (copy_to_user(argm, &tmp, sizeof(tmp)))
- return -EFAULT;
- }
- }
- break;
- } case MOXA_GET_OQUEUE:
- status = MoxaPortTxQueue(ch);
- ret = put_user(status, (unsigned long __user *)argp);
- break;
- case MOXA_GET_IQUEUE:
- status = MoxaPortRxQueue(ch);
- ret = put_user(status, (unsigned long __user *)argp);
- break;
- case MOXA_GETMSTATUS: {
- struct mxser_mstatus __user *argm = argp;
- struct mxser_mstatus tmp;
- struct moxa_port *p;
- unsigned int i, j;
-
- for (i = 0; i < MAX_BOARDS; i++) {
- p = moxa_boards[i].ports;
- for (j = 0; j < MAX_PORTS_PER_BOARD; j++, p++, argm++) {
- struct tty_struct *ttyp;
- memset(&tmp, 0, sizeof(tmp));
- spin_lock_bh(&moxa_lock);
- if (!moxa_boards[i].ready) {
- spin_unlock_bh(&moxa_lock);
- goto copy;
- }
-
- status = MoxaPortLineStatus(p);
- spin_unlock_bh(&moxa_lock);
-
- if (status & 1)
- tmp.cts = 1;
- if (status & 2)
- tmp.dsr = 1;
- if (status & 4)
- tmp.dcd = 1;
-
- ttyp = tty_port_tty_get(&p->port);
- if (!ttyp || !ttyp->termios)
- tmp.cflag = p->cflag;
- else
- tmp.cflag = ttyp->termios->c_cflag;
- tty_kref_put(tty);
-copy:
- if (copy_to_user(argm, &tmp, sizeof(tmp)))
- return -EFAULT;
- }
- }
- break;
- }
- case TIOCGSERIAL:
- mutex_lock(&ch->port.mutex);
- ret = moxa_get_serial_info(ch, argp);
- mutex_unlock(&ch->port.mutex);
- break;
- case TIOCSSERIAL:
- mutex_lock(&ch->port.mutex);
- ret = moxa_set_serial_info(ch, argp);
- mutex_unlock(&ch->port.mutex);
- break;
- default:
- ret = -ENOIOCTLCMD;
- }
- return ret;
-}
-
-static int moxa_break_ctl(struct tty_struct *tty, int state)
-{
- struct moxa_port *port = tty->driver_data;
-
- moxafunc(port->tableAddr, state ? FC_SendBreak : FC_StopBreak,
- Magic_code);
- return 0;
-}
-
-static const struct tty_operations moxa_ops = {
- .open = moxa_open,
- .close = moxa_close,
- .write = moxa_write,
- .write_room = moxa_write_room,
- .flush_buffer = moxa_flush_buffer,
- .chars_in_buffer = moxa_chars_in_buffer,
- .ioctl = moxa_ioctl,
- .set_termios = moxa_set_termios,
- .stop = moxa_stop,
- .start = moxa_start,
- .hangup = moxa_hangup,
- .break_ctl = moxa_break_ctl,
- .tiocmget = moxa_tiocmget,
- .tiocmset = moxa_tiocmset,
-};
-
-static const struct tty_port_operations moxa_port_ops = {
- .carrier_raised = moxa_carrier_raised,
- .dtr_rts = moxa_dtr_rts,
- .shutdown = moxa_shutdown,
-};
-
-static struct tty_driver *moxaDriver;
-static DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0);
-
-/*
- * HW init
- */
-
-static int moxa_check_fw_model(struct moxa_board_conf *brd, u8 model)
-{
- switch (brd->boardType) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- if (model != 1)
- goto err;
- break;
- case MOXA_BOARD_CP204J:
- if (model != 3)
- goto err;
- break;
- default:
- if (model != 2)
- goto err;
- break;
- }
- return 0;
-err:
- return -EINVAL;
-}
-
-static int moxa_check_fw(const void *ptr)
-{
- const __le16 *lptr = ptr;
-
- if (*lptr != cpu_to_le16(0x7980))
- return -EINVAL;
-
- return 0;
-}
-
-static int moxa_load_bios(struct moxa_board_conf *brd, const u8 *buf,
- size_t len)
-{
- void __iomem *baseAddr = brd->basemem;
- u16 tmp;
-
- writeb(HW_reset, baseAddr + Control_reg); /* reset */
- msleep(10);
- memset_io(baseAddr, 0, 4096);
- memcpy_toio(baseAddr, buf, len); /* download BIOS */
- writeb(0, baseAddr + Control_reg); /* restart */
-
- msleep(2000);
-
- switch (brd->boardType) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- tmp = readw(baseAddr + C218_key);
- if (tmp != C218_KeyCode)
- goto err;
- break;
- case MOXA_BOARD_CP204J:
- tmp = readw(baseAddr + C218_key);
- if (tmp != CP204J_KeyCode)
- goto err;
- break;
- default:
- tmp = readw(baseAddr + C320_key);
- if (tmp != C320_KeyCode)
- goto err;
- tmp = readw(baseAddr + C320_status);
- if (tmp != STS_init) {
- printk(KERN_ERR "MOXA: bios upload failed -- CPU/Basic "
- "module not found\n");
- return -EIO;
- }
- break;
- }
-
- return 0;
-err:
- printk(KERN_ERR "MOXA: bios upload failed -- board not found\n");
- return -EIO;
-}
-
-static int moxa_load_320b(struct moxa_board_conf *brd, const u8 *ptr,
- size_t len)
-{
- void __iomem *baseAddr = brd->basemem;
-
- if (len < 7168) {
- printk(KERN_ERR "MOXA: invalid 320 bios -- too short\n");
- return -EINVAL;
- }
-
- writew(len - 7168 - 2, baseAddr + C320bapi_len);
- writeb(1, baseAddr + Control_reg); /* Select Page 1 */
- memcpy_toio(baseAddr + DynPage_addr, ptr, 7168);
- writeb(2, baseAddr + Control_reg); /* Select Page 2 */
- memcpy_toio(baseAddr + DynPage_addr, ptr + 7168, len - 7168);
-
- return 0;
-}
-
-static int moxa_real_load_code(struct moxa_board_conf *brd, const void *ptr,
- size_t len)
-{
- void __iomem *baseAddr = brd->basemem;
- const __le16 *uptr = ptr;
- size_t wlen, len2, j;
- unsigned long key, loadbuf, loadlen, checksum, checksum_ok;
- unsigned int i, retry;
- u16 usum, keycode;
-
- keycode = (brd->boardType == MOXA_BOARD_CP204J) ? CP204J_KeyCode :
- C218_KeyCode;
-
- switch (brd->boardType) {
- case MOXA_BOARD_CP204J:
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- key = C218_key;
- loadbuf = C218_LoadBuf;
- loadlen = C218DLoad_len;
- checksum = C218check_sum;
- checksum_ok = C218chksum_ok;
- break;
- default:
- key = C320_key;
- keycode = C320_KeyCode;
- loadbuf = C320_LoadBuf;
- loadlen = C320DLoad_len;
- checksum = C320check_sum;
- checksum_ok = C320chksum_ok;
- break;
- }
-
- usum = 0;
- wlen = len >> 1;
- for (i = 0; i < wlen; i++)
- usum += le16_to_cpu(uptr[i]);
- retry = 0;
- do {
- wlen = len >> 1;
- j = 0;
- while (wlen) {
- len2 = (wlen > 2048) ? 2048 : wlen;
- wlen -= len2;
- memcpy_toio(baseAddr + loadbuf, ptr + j, len2 << 1);
- j += len2 << 1;
-
- writew(len2, baseAddr + loadlen);
- writew(0, baseAddr + key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + key) == keycode)
- break;
- msleep(10);
- }
- if (readw(baseAddr + key) != keycode)
- return -EIO;
- }
- writew(0, baseAddr + loadlen);
- writew(usum, baseAddr + checksum);
- writew(0, baseAddr + key);
- for (i = 0; i < 100; i++) {
- if (readw(baseAddr + key) == keycode)
- break;
- msleep(10);
- }
- retry++;
- } while ((readb(baseAddr + checksum_ok) != 1) && (retry < 3));
- if (readb(baseAddr + checksum_ok) != 1)
- return -EIO;
-
- writew(0, baseAddr + key);
- for (i = 0; i < 600; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- msleep(10);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return -EIO;
-
- if (MOXA_IS_320(brd)) {
- if (brd->busType == MOXA_BUS_TYPE_PCI) { /* ASIC board */
- writew(0x3800, baseAddr + TMS320_PORT1);
- writew(0x3900, baseAddr + TMS320_PORT2);
- writew(28499, baseAddr + TMS320_CLOCK);
- } else {
- writew(0x3200, baseAddr + TMS320_PORT1);
- writew(0x3400, baseAddr + TMS320_PORT2);
- writew(19999, baseAddr + TMS320_CLOCK);
- }
- }
- writew(1, baseAddr + Disable_IRQ);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 500; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- msleep(10);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return -EIO;
-
- if (MOXA_IS_320(brd)) {
- j = readw(baseAddr + Module_cnt);
- if (j <= 0)
- return -EIO;
- brd->numPorts = j * 8;
- writew(j, baseAddr + Module_no);
- writew(0, baseAddr + Magic_no);
- for (i = 0; i < 600; i++) {
- if (readw(baseAddr + Magic_no) == Magic_code)
- break;
- msleep(10);
- }
- if (readw(baseAddr + Magic_no) != Magic_code)
- return -EIO;
- }
- brd->intNdx = baseAddr + IRQindex;
- brd->intPend = baseAddr + IRQpending;
- brd->intTable = baseAddr + IRQtable;
-
- return 0;
-}
-
-static int moxa_load_code(struct moxa_board_conf *brd, const void *ptr,
- size_t len)
-{
- void __iomem *ofsAddr, *baseAddr = brd->basemem;
- struct moxa_port *port;
- int retval, i;
-
- if (len % 2) {
- printk(KERN_ERR "MOXA: bios length is not even\n");
- return -EINVAL;
- }
-
- retval = moxa_real_load_code(brd, ptr, len); /* may change numPorts */
- if (retval)
- return retval;
-
- switch (brd->boardType) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- case MOXA_BOARD_CP204J:
- port = brd->ports;
- for (i = 0; i < brd->numPorts; i++, port++) {
- port->board = brd;
- port->DCDState = 0;
- port->tableAddr = baseAddr + Extern_table +
- Extern_size * i;
- ofsAddr = port->tableAddr;
- writew(C218rx_mask, ofsAddr + RX_mask);
- writew(C218tx_mask, ofsAddr + TX_mask);
- writew(C218rx_spage + i * C218buf_pageno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C218rx_pageno, ofsAddr + EndPage_rxb);
-
- writew(C218tx_spage + i * C218buf_pageno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb) + C218tx_pageno, ofsAddr + EndPage_txb);
-
- }
- break;
- default:
- port = brd->ports;
- for (i = 0; i < brd->numPorts; i++, port++) {
- port->board = brd;
- port->DCDState = 0;
- port->tableAddr = baseAddr + Extern_table +
- Extern_size * i;
- ofsAddr = port->tableAddr;
- switch (brd->numPorts) {
- case 8:
- writew(C320p8rx_mask, ofsAddr + RX_mask);
- writew(C320p8tx_mask, ofsAddr + TX_mask);
- writew(C320p8rx_spage + i * C320p8buf_pgno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C320p8rx_pgno, ofsAddr + EndPage_rxb);
- writew(C320p8tx_spage + i * C320p8buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb) + C320p8tx_pgno, ofsAddr + EndPage_txb);
-
- break;
- case 16:
- writew(C320p16rx_mask, ofsAddr + RX_mask);
- writew(C320p16tx_mask, ofsAddr + TX_mask);
- writew(C320p16rx_spage + i * C320p16buf_pgno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C320p16rx_pgno, ofsAddr + EndPage_rxb);
- writew(C320p16tx_spage + i * C320p16buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb) + C320p16tx_pgno, ofsAddr + EndPage_txb);
- break;
-
- case 24:
- writew(C320p24rx_mask, ofsAddr + RX_mask);
- writew(C320p24tx_mask, ofsAddr + TX_mask);
- writew(C320p24rx_spage + i * C320p24buf_pgno, ofsAddr + Page_rxb);
- writew(readw(ofsAddr + Page_rxb) + C320p24rx_pgno, ofsAddr + EndPage_rxb);
- writew(C320p24tx_spage + i * C320p24buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
- break;
- case 32:
- writew(C320p32rx_mask, ofsAddr + RX_mask);
- writew(C320p32tx_mask, ofsAddr + TX_mask);
- writew(C320p32tx_ofs, ofsAddr + Ofs_txb);
- writew(C320p32rx_spage + i * C320p32buf_pgno, ofsAddr + Page_rxb);
- writew(readb(ofsAddr + Page_rxb), ofsAddr + EndPage_rxb);
- writew(C320p32tx_spage + i * C320p32buf_pgno, ofsAddr + Page_txb);
- writew(readw(ofsAddr + Page_txb), ofsAddr + EndPage_txb);
- break;
- }
- }
- break;
- }
- return 0;
-}
-
-static int moxa_load_fw(struct moxa_board_conf *brd, const struct firmware *fw)
-{
- const void *ptr = fw->data;
- char rsn[64];
- u16 lens[5];
- size_t len;
- unsigned int a, lenp, lencnt;
- int ret = -EINVAL;
- struct {
- __le32 magic; /* 0x34303430 */
- u8 reserved1[2];
- u8 type; /* UNIX = 3 */
- u8 model; /* C218T=1, C320T=2, CP204=3 */
- u8 reserved2[8];
- __le16 len[5];
- } const *hdr = ptr;
-
- BUILD_BUG_ON(ARRAY_SIZE(hdr->len) != ARRAY_SIZE(lens));
-
- if (fw->size < MOXA_FW_HDRLEN) {
- strcpy(rsn, "too short (even header won't fit)");
- goto err;
- }
- if (hdr->magic != cpu_to_le32(0x30343034)) {
- sprintf(rsn, "bad magic: %.8x", le32_to_cpu(hdr->magic));
- goto err;
- }
- if (hdr->type != 3) {
- sprintf(rsn, "not for linux, type is %u", hdr->type);
- goto err;
- }
- if (moxa_check_fw_model(brd, hdr->model)) {
- sprintf(rsn, "not for this card, model is %u", hdr->model);
- goto err;
- }
-
- len = MOXA_FW_HDRLEN;
- lencnt = hdr->model == 2 ? 5 : 3;
- for (a = 0; a < ARRAY_SIZE(lens); a++) {
- lens[a] = le16_to_cpu(hdr->len[a]);
- if (lens[a] && len + lens[a] <= fw->size &&
- moxa_check_fw(&fw->data[len]))
- printk(KERN_WARNING "MOXA firmware: unexpected input "
- "at offset %u, but going on\n", (u32)len);
- if (!lens[a] && a < lencnt) {
- sprintf(rsn, "too few entries in fw file");
- goto err;
- }
- len += lens[a];
- }
-
- if (len != fw->size) {
- sprintf(rsn, "bad length: %u (should be %u)", (u32)fw->size,
- (u32)len);
- goto err;
- }
-
- ptr += MOXA_FW_HDRLEN;
- lenp = 0; /* bios */
-
- strcpy(rsn, "read above");
-
- ret = moxa_load_bios(brd, ptr, lens[lenp]);
- if (ret)
- goto err;
-
- /* we skip the tty section (lens[1]), since we don't need it */
- ptr += lens[lenp] + lens[lenp + 1];
- lenp += 2; /* comm */
-
- if (hdr->model == 2) {
- ret = moxa_load_320b(brd, ptr, lens[lenp]);
- if (ret)
- goto err;
- /* skip another tty */
- ptr += lens[lenp] + lens[lenp + 1];
- lenp += 2;
- }
-
- ret = moxa_load_code(brd, ptr, lens[lenp]);
- if (ret)
- goto err;
-
- return 0;
-err:
- printk(KERN_ERR "firmware failed to load, reason: %s\n", rsn);
- return ret;
-}
-
-static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
-{
- const struct firmware *fw;
- const char *file;
- struct moxa_port *p;
- unsigned int i;
- int ret;
-
- brd->ports = kcalloc(MAX_PORTS_PER_BOARD, sizeof(*brd->ports),
- GFP_KERNEL);
- if (brd->ports == NULL) {
- printk(KERN_ERR "cannot allocate memory for ports\n");
- ret = -ENOMEM;
- goto err;
- }
-
- for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) {
- tty_port_init(&p->port);
- p->port.ops = &moxa_port_ops;
- p->type = PORT_16550A;
- p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
- }
-
- switch (brd->boardType) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- file = "c218tunx.cod";
- break;
- case MOXA_BOARD_CP204J:
- file = "cp204unx.cod";
- break;
- default:
- file = "c320tunx.cod";
- break;
- }
-
- ret = request_firmware(&fw, file, dev);
- if (ret) {
- printk(KERN_ERR "MOXA: request_firmware failed. Make sure "
- "you've placed '%s' file into your firmware "
- "loader directory (e.g. /lib/firmware)\n",
- file);
- goto err_free;
- }
-
- ret = moxa_load_fw(brd, fw);
-
- release_firmware(fw);
-
- if (ret)
- goto err_free;
-
- spin_lock_bh(&moxa_lock);
- brd->ready = 1;
- if (!timer_pending(&moxaTimer))
- mod_timer(&moxaTimer, jiffies + HZ / 50);
- spin_unlock_bh(&moxa_lock);
-
- return 0;
-err_free:
- kfree(brd->ports);
-err:
- return ret;
-}
-
-static void moxa_board_deinit(struct moxa_board_conf *brd)
-{
- unsigned int a, opened;
-
- mutex_lock(&moxa_openlock);
- spin_lock_bh(&moxa_lock);
- brd->ready = 0;
- spin_unlock_bh(&moxa_lock);
-
- /* pci hot-un-plug support */
- for (a = 0; a < brd->numPorts; a++)
- if (brd->ports[a].port.flags & ASYNC_INITIALIZED) {
- struct tty_struct *tty = tty_port_tty_get(
- &brd->ports[a].port);
- if (tty) {
- tty_hangup(tty);
- tty_kref_put(tty);
- }
- }
- while (1) {
- opened = 0;
- for (a = 0; a < brd->numPorts; a++)
- if (brd->ports[a].port.flags & ASYNC_INITIALIZED)
- opened++;
- mutex_unlock(&moxa_openlock);
- if (!opened)
- break;
- msleep(50);
- mutex_lock(&moxa_openlock);
- }
-
- iounmap(brd->basemem);
- brd->basemem = NULL;
- kfree(brd->ports);
-}
-
-#ifdef CONFIG_PCI
-static int __devinit moxa_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct moxa_board_conf *board;
- unsigned int i;
- int board_type = ent->driver_data;
- int retval;
-
- retval = pci_enable_device(pdev);
- if (retval) {
- dev_err(&pdev->dev, "can't enable pci device\n");
- goto err;
- }
-
- for (i = 0; i < MAX_BOARDS; i++)
- if (moxa_boards[i].basemem == NULL)
- break;
-
- retval = -ENODEV;
- if (i >= MAX_BOARDS) {
- dev_warn(&pdev->dev, "more than %u MOXA Intellio family boards "
- "found. Board is ignored.\n", MAX_BOARDS);
- goto err;
- }
-
- board = &moxa_boards[i];
-
- retval = pci_request_region(pdev, 2, "moxa-base");
- if (retval) {
- dev_err(&pdev->dev, "can't request pci region 2\n");
- goto err;
- }
-
- board->basemem = ioremap_nocache(pci_resource_start(pdev, 2), 0x4000);
- if (board->basemem == NULL) {
- dev_err(&pdev->dev, "can't remap io space 2\n");
- goto err_reg;
- }
-
- board->boardType = board_type;
- switch (board_type) {
- case MOXA_BOARD_C218_ISA:
- case MOXA_BOARD_C218_PCI:
- board->numPorts = 8;
- break;
-
- case MOXA_BOARD_CP204J:
- board->numPorts = 4;
- break;
- default:
- board->numPorts = 0;
- break;
- }
- board->busType = MOXA_BUS_TYPE_PCI;
-
- retval = moxa_init_board(board, &pdev->dev);
- if (retval)
- goto err_base;
-
- pci_set_drvdata(pdev, board);
-
- dev_info(&pdev->dev, "board '%s' ready (%u ports, firmware loaded)\n",
- moxa_brdname[board_type - 1], board->numPorts);
-
- return 0;
-err_base:
- iounmap(board->basemem);
- board->basemem = NULL;
-err_reg:
- pci_release_region(pdev, 2);
-err:
- return retval;
-}
-
-static void __devexit moxa_pci_remove(struct pci_dev *pdev)
-{
- struct moxa_board_conf *brd = pci_get_drvdata(pdev);
-
- moxa_board_deinit(brd);
-
- pci_release_region(pdev, 2);
-}
-
-static struct pci_driver moxa_pci_driver = {
- .name = "moxa",
- .id_table = moxa_pcibrds,
- .probe = moxa_pci_probe,
- .remove = __devexit_p(moxa_pci_remove)
-};
-#endif /* CONFIG_PCI */
-
-static int __init moxa_init(void)
-{
- unsigned int isabrds = 0;
- int retval = 0;
- struct moxa_board_conf *brd = moxa_boards;
- unsigned int i;
-
- printk(KERN_INFO "MOXA Intellio family driver version %s\n",
- MOXA_VERSION);
- moxaDriver = alloc_tty_driver(MAX_PORTS + 1);
- if (!moxaDriver)
- return -ENOMEM;
-
- moxaDriver->owner = THIS_MODULE;
- moxaDriver->name = "ttyMX";
- moxaDriver->major = ttymajor;
- moxaDriver->minor_start = 0;
- moxaDriver->type = TTY_DRIVER_TYPE_SERIAL;
- moxaDriver->subtype = SERIAL_TYPE_NORMAL;
- moxaDriver->init_termios = tty_std_termios;
- moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
- moxaDriver->init_termios.c_ispeed = 9600;
- moxaDriver->init_termios.c_ospeed = 9600;
- moxaDriver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(moxaDriver, &moxa_ops);
-
- if (tty_register_driver(moxaDriver)) {
- printk(KERN_ERR "can't register MOXA Smartio tty driver!\n");
- put_tty_driver(moxaDriver);
- return -1;
- }
-
- /* Find the boards defined from module args. */
-
- for (i = 0; i < MAX_BOARDS; i++) {
- if (!baseaddr[i])
- break;
- if (type[i] == MOXA_BOARD_C218_ISA ||
- type[i] == MOXA_BOARD_C320_ISA) {
- pr_debug("Moxa board %2d: %s board(baseAddr=%lx)\n",
- isabrds + 1, moxa_brdname[type[i] - 1],
- baseaddr[i]);
- brd->boardType = type[i];
- brd->numPorts = type[i] == MOXA_BOARD_C218_ISA ? 8 :
- numports[i];
- brd->busType = MOXA_BUS_TYPE_ISA;
- brd->basemem = ioremap_nocache(baseaddr[i], 0x4000);
- if (!brd->basemem) {
- printk(KERN_ERR "MOXA: can't remap %lx\n",
- baseaddr[i]);
- continue;
- }
- if (moxa_init_board(brd, NULL)) {
- iounmap(brd->basemem);
- brd->basemem = NULL;
- continue;
- }
-
- printk(KERN_INFO "MOXA isa board found at 0x%.8lu and "
- "ready (%u ports, firmware loaded)\n",
- baseaddr[i], brd->numPorts);
-
- brd++;
- isabrds++;
- }
- }
-
-#ifdef CONFIG_PCI
- retval = pci_register_driver(&moxa_pci_driver);
- if (retval) {
- printk(KERN_ERR "Can't register MOXA pci driver!\n");
- if (isabrds)
- retval = 0;
- }
-#endif
-
- return retval;
-}
-
-static void __exit moxa_exit(void)
-{
- unsigned int i;
-
-#ifdef CONFIG_PCI
- pci_unregister_driver(&moxa_pci_driver);
-#endif
-
- for (i = 0; i < MAX_BOARDS; i++) /* ISA boards */
- if (moxa_boards[i].ready)
- moxa_board_deinit(&moxa_boards[i]);
-
- del_timer_sync(&moxaTimer);
-
- if (tty_unregister_driver(moxaDriver))
- printk(KERN_ERR "Couldn't unregister MOXA Intellio family "
- "serial driver\n");
- put_tty_driver(moxaDriver);
-}
-
-module_init(moxa_init);
-module_exit(moxa_exit);
-
-static void moxa_shutdown(struct tty_port *port)
-{
- struct moxa_port *ch = container_of(port, struct moxa_port, port);
- MoxaPortDisable(ch);
- MoxaPortFlushData(ch, 2);
- clear_bit(ASYNCB_NORMAL_ACTIVE, &port->flags);
-}
-
-static int moxa_carrier_raised(struct tty_port *port)
-{
- struct moxa_port *ch = container_of(port, struct moxa_port, port);
- int dcd;
-
- spin_lock_irq(&port->lock);
- dcd = ch->DCDState;
- spin_unlock_irq(&port->lock);
- return dcd;
-}
-
-static void moxa_dtr_rts(struct tty_port *port, int onoff)
-{
- struct moxa_port *ch = container_of(port, struct moxa_port, port);
- MoxaPortLineCtrl(ch, onoff, onoff);
-}
-
-
-static int moxa_open(struct tty_struct *tty, struct file *filp)
-{
- struct moxa_board_conf *brd;
- struct moxa_port *ch;
- int port;
- int retval;
-
- port = tty->index;
- if (port == MAX_PORTS) {
- return capable(CAP_SYS_ADMIN) ? 0 : -EPERM;
- }
- if (mutex_lock_interruptible(&moxa_openlock))
- return -ERESTARTSYS;
- brd = &moxa_boards[port / MAX_PORTS_PER_BOARD];
- if (!brd->ready) {
- mutex_unlock(&moxa_openlock);
- return -ENODEV;
- }
-
- if (port % MAX_PORTS_PER_BOARD >= brd->numPorts) {
- mutex_unlock(&moxa_openlock);
- return -ENODEV;
- }
-
- ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
- ch->port.count++;
- tty->driver_data = ch;
- tty_port_tty_set(&ch->port, tty);
- mutex_lock(&ch->port.mutex);
- if (!(ch->port.flags & ASYNC_INITIALIZED)) {
- ch->statusflags = 0;
- moxa_set_tty_param(tty, tty->termios);
- MoxaPortLineCtrl(ch, 1, 1);
- MoxaPortEnable(ch);
- MoxaSetFifo(ch, ch->type == PORT_16550A);
- ch->port.flags |= ASYNC_INITIALIZED;
- }
- mutex_unlock(&ch->port.mutex);
- mutex_unlock(&moxa_openlock);
-
- retval = tty_port_block_til_ready(&ch->port, tty, filp);
- if (retval == 0)
- set_bit(ASYNCB_NORMAL_ACTIVE, &ch->port.flags);
- return retval;
-}
-
-static void moxa_close(struct tty_struct *tty, struct file *filp)
-{
- struct moxa_port *ch = tty->driver_data;
- ch->cflag = tty->termios->c_cflag;
- tty_port_close(&ch->port, tty, filp);
-}
-
-static int moxa_write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- struct moxa_port *ch = tty->driver_data;
- int len;
-
- if (ch == NULL)
- return 0;
-
- spin_lock_bh(&moxa_lock);
- len = MoxaPortWriteData(tty, buf, count);
- spin_unlock_bh(&moxa_lock);
-
- set_bit(LOWWAIT, &ch->statusflags);
- return len;
-}
-
-static int moxa_write_room(struct tty_struct *tty)
-{
- struct moxa_port *ch;
-
- if (tty->stopped)
- return 0;
- ch = tty->driver_data;
- if (ch == NULL)
- return 0;
- return MoxaPortTxFree(ch);
-}
-
-static void moxa_flush_buffer(struct tty_struct *tty)
-{
- struct moxa_port *ch = tty->driver_data;
-
- if (ch == NULL)
- return;
- MoxaPortFlushData(ch, 1);
- tty_wakeup(tty);
-}
-
-static int moxa_chars_in_buffer(struct tty_struct *tty)
-{
- struct moxa_port *ch = tty->driver_data;
- int chars;
-
- chars = MoxaPortTxQueue(ch);
- if (chars)
- /*
- * Make it possible to wakeup anything waiting for output
- * in tty_ioctl.c, etc.
- */
- set_bit(EMPTYWAIT, &ch->statusflags);
- return chars;
-}
-
-static int moxa_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct moxa_port *ch = tty->driver_data;
- int flag = 0, dtr, rts;
-
- MoxaPortGetLineOut(ch, &dtr, &rts);
- if (dtr)
- flag |= TIOCM_DTR;
- if (rts)
- flag |= TIOCM_RTS;
- dtr = MoxaPortLineStatus(ch);
- if (dtr & 1)
- flag |= TIOCM_CTS;
- if (dtr & 2)
- flag |= TIOCM_DSR;
- if (dtr & 4)
- flag |= TIOCM_CD;
- return flag;
-}
-
-static int moxa_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct moxa_port *ch;
- int port;
- int dtr, rts;
-
- port = tty->index;
- mutex_lock(&moxa_openlock);
- ch = tty->driver_data;
- if (!ch) {
- mutex_unlock(&moxa_openlock);
- return -EINVAL;
- }
-
- MoxaPortGetLineOut(ch, &dtr, &rts);
- if (set & TIOCM_RTS)
- rts = 1;
- if (set & TIOCM_DTR)
- dtr = 1;
- if (clear & TIOCM_RTS)
- rts = 0;
- if (clear & TIOCM_DTR)
- dtr = 0;
- MoxaPortLineCtrl(ch, dtr, rts);
- mutex_unlock(&moxa_openlock);
- return 0;
-}
-
-static void moxa_set_termios(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct moxa_port *ch = tty->driver_data;
-
- if (ch == NULL)
- return;
- moxa_set_tty_param(tty, old_termios);
- if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty))
- wake_up_interruptible(&ch->port.open_wait);
-}
-
-static void moxa_stop(struct tty_struct *tty)
-{
- struct moxa_port *ch = tty->driver_data;
-
- if (ch == NULL)
- return;
- MoxaPortTxDisable(ch);
- set_bit(TXSTOPPED, &ch->statusflags);
-}
-
-
-static void moxa_start(struct tty_struct *tty)
-{
- struct moxa_port *ch = tty->driver_data;
-
- if (ch == NULL)
- return;
-
- if (!(ch->statusflags & TXSTOPPED))
- return;
-
- MoxaPortTxEnable(ch);
- clear_bit(TXSTOPPED, &ch->statusflags);
-}
-
-static void moxa_hangup(struct tty_struct *tty)
-{
- struct moxa_port *ch = tty->driver_data;
- tty_port_hangup(&ch->port);
-}
-
-static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
-{
- struct tty_struct *tty;
- unsigned long flags;
- dcd = !!dcd;
-
- spin_lock_irqsave(&p->port.lock, flags);
- if (dcd != p->DCDState) {
- p->DCDState = dcd;
- spin_unlock_irqrestore(&p->port.lock, flags);
- tty = tty_port_tty_get(&p->port);
- if (tty && C_CLOCAL(tty) && !dcd)
- tty_hangup(tty);
- tty_kref_put(tty);
- }
- else
- spin_unlock_irqrestore(&p->port.lock, flags);
-}
-
-static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
- u16 __iomem *ip)
-{
- struct tty_struct *tty = tty_port_tty_get(&p->port);
- void __iomem *ofsAddr;
- unsigned int inited = p->port.flags & ASYNC_INITIALIZED;
- u16 intr;
-
- if (tty) {
- if (test_bit(EMPTYWAIT, &p->statusflags) &&
- MoxaPortTxQueue(p) == 0) {
- clear_bit(EMPTYWAIT, &p->statusflags);
- tty_wakeup(tty);
- }
- if (test_bit(LOWWAIT, &p->statusflags) && !tty->stopped &&
- MoxaPortTxQueue(p) <= WAKEUP_CHARS) {
- clear_bit(LOWWAIT, &p->statusflags);
- tty_wakeup(tty);
- }
-
- if (inited && !test_bit(TTY_THROTTLED, &tty->flags) &&
- MoxaPortRxQueue(p) > 0) { /* RX */
- MoxaPortReadData(p);
- tty_schedule_flip(tty);
- }
- } else {
- clear_bit(EMPTYWAIT, &p->statusflags);
- MoxaPortFlushData(p, 0); /* flush RX */
- }
-
- if (!handle) /* nothing else to do */
- goto put;
-
- intr = readw(ip); /* port irq status */
- if (intr == 0)
- goto put;
-
- writew(0, ip); /* ACK port */
- ofsAddr = p->tableAddr;
- if (intr & IntrTx) /* disable tx intr */
- writew(readw(ofsAddr + HostStat) & ~WakeupTx,
- ofsAddr + HostStat);
-
- if (!inited)
- goto put;
-
- if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- tty_schedule_flip(tty);
- }
-
- if (intr & IntrLine)
- moxa_new_dcdstate(p, readb(ofsAddr + FlagStat) & DCD_state);
-put:
- tty_kref_put(tty);
-
- return 0;
-}
-
-static void moxa_poll(unsigned long ignored)
-{
- struct moxa_board_conf *brd;
- u16 __iomem *ip;
- unsigned int card, port, served = 0;
-
- spin_lock(&moxa_lock);
- for (card = 0; card < MAX_BOARDS; card++) {
- brd = &moxa_boards[card];
- if (!brd->ready)
- continue;
-
- served++;
-
- ip = NULL;
- if (readb(brd->intPend) == 0xff)
- ip = brd->intTable + readb(brd->intNdx);
-
- for (port = 0; port < brd->numPorts; port++)
- moxa_poll_port(&brd->ports[port], !!ip, ip + port);
-
- if (ip)
- writeb(0, brd->intPend); /* ACK */
-
- if (moxaLowWaterChk) {
- struct moxa_port *p = brd->ports;
- for (port = 0; port < brd->numPorts; port++, p++)
- if (p->lowChkFlag) {
- p->lowChkFlag = 0;
- moxa_low_water_check(p->tableAddr);
- }
- }
- }
- moxaLowWaterChk = 0;
-
- if (served)
- mod_timer(&moxaTimer, jiffies + HZ / 50);
- spin_unlock(&moxa_lock);
-}
-
-/******************************************************************************/
-
-static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios)
-{
- register struct ktermios *ts = tty->termios;
- struct moxa_port *ch = tty->driver_data;
- int rts, cts, txflow, rxflow, xany, baud;
-
- rts = cts = txflow = rxflow = xany = 0;
- if (ts->c_cflag & CRTSCTS)
- rts = cts = 1;
- if (ts->c_iflag & IXON)
- txflow = 1;
- if (ts->c_iflag & IXOFF)
- rxflow = 1;
- if (ts->c_iflag & IXANY)
- xany = 1;
-
- /* Clear the features we don't support */
- ts->c_cflag &= ~CMSPAR;
- MoxaPortFlowCtrl(ch, rts, cts, txflow, rxflow, xany);
- baud = MoxaPortSetTermio(ch, ts, tty_get_baud_rate(tty));
- if (baud == -1)
- baud = tty_termios_baud_rate(old_termios);
- /* Not put the baud rate into the termios data */
- tty_encode_baud_rate(tty, baud, baud);
-}
-
-/*****************************************************************************
- * Driver level functions: *
- *****************************************************************************/
-
-static void MoxaPortFlushData(struct moxa_port *port, int mode)
-{
- void __iomem *ofsAddr;
- if (mode < 0 || mode > 2)
- return;
- ofsAddr = port->tableAddr;
- moxafunc(ofsAddr, FC_FlushQueue, mode);
- if (mode != 1) {
- port->lowChkFlag = 0;
- moxa_low_water_check(ofsAddr);
- }
-}
-
-/*
- * Moxa Port Number Description:
- *
- * MOXA serial driver supports up to 4 MOXA-C218/C320 boards. And,
- * the port number using in MOXA driver functions will be 0 to 31 for
- * first MOXA board, 32 to 63 for second, 64 to 95 for third and 96
- * to 127 for fourth. For example, if you setup three MOXA boards,
- * first board is C218, second board is C320-16 and third board is
- * C320-32. The port number of first board (C218 - 8 ports) is from
- * 0 to 7. The port number of second board (C320 - 16 ports) is form
- * 32 to 47. The port number of third board (C320 - 32 ports) is from
- * 64 to 95. And those port numbers form 8 to 31, 48 to 63 and 96 to
- * 127 will be invalid.
- *
- *
- * Moxa Functions Description:
- *
- * Function 1: Driver initialization routine, this routine must be
- * called when initialized driver.
- * Syntax:
- * void MoxaDriverInit();
- *
- *
- * Function 2: Moxa driver private IOCTL command processing.
- * Syntax:
- * int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port);
- *
- * unsigned int cmd : IOCTL command
- * unsigned long arg : IOCTL argument
- * int port : port number (0 - 127)
- *
- * return: 0 (OK)
- * -EINVAL
- * -ENOIOCTLCMD
- *
- *
- * Function 6: Enable this port to start Tx/Rx data.
- * Syntax:
- * void MoxaPortEnable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 7: Disable this port
- * Syntax:
- * void MoxaPortDisable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 10: Setting baud rate of this port.
- * Syntax:
- * speed_t MoxaPortSetBaud(int port, speed_t baud);
- * int port : port number (0 - 127)
- * long baud : baud rate (50 - 115200)
- *
- * return: 0 : this port is invalid or baud < 50
- * 50 - 115200 : the real baud rate set to the port, if
- * the argument baud is large than maximun
- * available baud rate, the real setting
- * baud rate will be the maximun baud rate.
- *
- *
- * Function 12: Configure the port.
- * Syntax:
- * int MoxaPortSetTermio(int port, struct ktermios *termio, speed_t baud);
- * int port : port number (0 - 127)
- * struct ktermios * termio : termio structure pointer
- * speed_t baud : baud rate
- *
- * return: -1 : this port is invalid or termio == NULL
- * 0 : setting O.K.
- *
- *
- * Function 13: Get the DTR/RTS state of this port.
- * Syntax:
- * int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState);
- * int port : port number (0 - 127)
- * int * dtrState : pointer to INT to receive the current DTR
- * state. (if NULL, this function will not
- * write to this address)
- * int * rtsState : pointer to INT to receive the current RTS
- * state. (if NULL, this function will not
- * write to this address)
- *
- * return: -1 : this port is invalid
- * 0 : O.K.
- *
- *
- * Function 14: Setting the DTR/RTS output state of this port.
- * Syntax:
- * void MoxaPortLineCtrl(int port, int dtrState, int rtsState);
- * int port : port number (0 - 127)
- * int dtrState : DTR output state (0: off, 1: on)
- * int rtsState : RTS output state (0: off, 1: on)
- *
- *
- * Function 15: Setting the flow control of this port.
- * Syntax:
- * void MoxaPortFlowCtrl(int port, int rtsFlow, int ctsFlow, int rxFlow,
- * int txFlow,int xany);
- * int port : port number (0 - 127)
- * int rtsFlow : H/W RTS flow control (0: no, 1: yes)
- * int ctsFlow : H/W CTS flow control (0: no, 1: yes)
- * int rxFlow : S/W Rx XON/XOFF flow control (0: no, 1: yes)
- * int txFlow : S/W Tx XON/XOFF flow control (0: no, 1: yes)
- * int xany : S/W XANY flow control (0: no, 1: yes)
- *
- *
- * Function 16: Get ths line status of this port
- * Syntax:
- * int MoxaPortLineStatus(int port);
- * int port : port number (0 - 127)
- *
- * return: Bit 0 - CTS state (0: off, 1: on)
- * Bit 1 - DSR state (0: off, 1: on)
- * Bit 2 - DCD state (0: off, 1: on)
- *
- *
- * Function 19: Flush the Rx/Tx buffer data of this port.
- * Syntax:
- * void MoxaPortFlushData(int port, int mode);
- * int port : port number (0 - 127)
- * int mode
- * 0 : flush the Rx buffer
- * 1 : flush the Tx buffer
- * 2 : flush the Rx and Tx buffer
- *
- *
- * Function 20: Write data.
- * Syntax:
- * int MoxaPortWriteData(int port, unsigned char * buffer, int length);
- * int port : port number (0 - 127)
- * unsigned char * buffer : pointer to write data buffer.
- * int length : write data length
- *
- * return: 0 - length : real write data length
- *
- *
- * Function 21: Read data.
- * Syntax:
- * int MoxaPortReadData(int port, struct tty_struct *tty);
- * int port : port number (0 - 127)
- * struct tty_struct *tty : tty for data
- *
- * return: 0 - length : real read data length
- *
- *
- * Function 24: Get the Tx buffer current queued data bytes
- * Syntax:
- * int MoxaPortTxQueue(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Tx buffer current queued data bytes
- *
- *
- * Function 25: Get the Tx buffer current free space
- * Syntax:
- * int MoxaPortTxFree(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Tx buffer current free space
- *
- *
- * Function 26: Get the Rx buffer current queued data bytes
- * Syntax:
- * int MoxaPortRxQueue(int port);
- * int port : port number (0 - 127)
- *
- * return: .. : Rx buffer current queued data bytes
- *
- *
- * Function 28: Disable port data transmission.
- * Syntax:
- * void MoxaPortTxDisable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 29: Enable port data transmission.
- * Syntax:
- * void MoxaPortTxEnable(int port);
- * int port : port number (0 - 127)
- *
- *
- * Function 31: Get the received BREAK signal count and reset it.
- * Syntax:
- * int MoxaPortResetBrkCnt(int port);
- * int port : port number (0 - 127)
- *
- * return: 0 - .. : BREAK signal count
- *
- *
- */
-
-static void MoxaPortEnable(struct moxa_port *port)
-{
- void __iomem *ofsAddr;
- u16 lowwater = 512;
-
- ofsAddr = port->tableAddr;
- writew(lowwater, ofsAddr + Low_water);
- if (MOXA_IS_320(port->board))
- moxafunc(ofsAddr, FC_SetBreakIrq, 0);
- else
- writew(readw(ofsAddr + HostStat) | WakeupBreak,
- ofsAddr + HostStat);
-
- moxafunc(ofsAddr, FC_SetLineIrq, Magic_code);
- moxafunc(ofsAddr, FC_FlushQueue, 2);
-
- moxafunc(ofsAddr, FC_EnableCH, Magic_code);
- MoxaPortLineStatus(port);
-}
-
-static void MoxaPortDisable(struct moxa_port *port)
-{
- void __iomem *ofsAddr = port->tableAddr;
-
- moxafunc(ofsAddr, FC_SetFlowCtl, 0); /* disable flow control */
- moxafunc(ofsAddr, FC_ClrLineIrq, Magic_code);
- writew(0, ofsAddr + HostStat);
- moxafunc(ofsAddr, FC_DisableCH, Magic_code);
-}
-
-static speed_t MoxaPortSetBaud(struct moxa_port *port, speed_t baud)
-{
- void __iomem *ofsAddr = port->tableAddr;
- unsigned int clock, val;
- speed_t max;
-
- max = MOXA_IS_320(port->board) ? 460800 : 921600;
- if (baud < 50)
- return 0;
- if (baud > max)
- baud = max;
- clock = 921600;
- val = clock / baud;
- moxafunc(ofsAddr, FC_SetBaud, val);
- baud = clock / val;
- return baud;
-}
-
-static int MoxaPortSetTermio(struct moxa_port *port, struct ktermios *termio,
- speed_t baud)
-{
- void __iomem *ofsAddr;
- tcflag_t cflag;
- tcflag_t mode = 0;
-
- ofsAddr = port->tableAddr;
- cflag = termio->c_cflag; /* termio->c_cflag */
-
- mode = termio->c_cflag & CSIZE;
- if (mode == CS5)
- mode = MX_CS5;
- else if (mode == CS6)
- mode = MX_CS6;
- else if (mode == CS7)
- mode = MX_CS7;
- else if (mode == CS8)
- mode = MX_CS8;
-
- if (termio->c_cflag & CSTOPB) {
- if (mode == MX_CS5)
- mode |= MX_STOP15;
- else
- mode |= MX_STOP2;
- } else
- mode |= MX_STOP1;
-
- if (termio->c_cflag & PARENB) {
- if (termio->c_cflag & PARODD)
- mode |= MX_PARODD;
- else
- mode |= MX_PAREVEN;
- } else
- mode |= MX_PARNONE;
-
- moxafunc(ofsAddr, FC_SetDataMode, (u16)mode);
-
- if (MOXA_IS_320(port->board) && baud >= 921600)
- return -1;
-
- baud = MoxaPortSetBaud(port, baud);
-
- if (termio->c_iflag & (IXON | IXOFF | IXANY)) {
- spin_lock_irq(&moxafunc_lock);
- writeb(termio->c_cc[VSTART], ofsAddr + FuncArg);
- writeb(termio->c_cc[VSTOP], ofsAddr + FuncArg1);
- writeb(FC_SetXonXoff, ofsAddr + FuncCode);
- moxa_wait_finish(ofsAddr);
- spin_unlock_irq(&moxafunc_lock);
-
- }
- return baud;
-}
-
-static int MoxaPortGetLineOut(struct moxa_port *port, int *dtrState,
- int *rtsState)
-{
- if (dtrState)
- *dtrState = !!(port->lineCtrl & DTR_ON);
- if (rtsState)
- *rtsState = !!(port->lineCtrl & RTS_ON);
-
- return 0;
-}
-
-static void MoxaPortLineCtrl(struct moxa_port *port, int dtr, int rts)
-{
- u8 mode = 0;
-
- if (dtr)
- mode |= DTR_ON;
- if (rts)
- mode |= RTS_ON;
- port->lineCtrl = mode;
- moxafunc(port->tableAddr, FC_LineControl, mode);
-}
-
-static void MoxaPortFlowCtrl(struct moxa_port *port, int rts, int cts,
- int txflow, int rxflow, int txany)
-{
- int mode = 0;
-
- if (rts)
- mode |= RTS_FlowCtl;
- if (cts)
- mode |= CTS_FlowCtl;
- if (txflow)
- mode |= Tx_FlowCtl;
- if (rxflow)
- mode |= Rx_FlowCtl;
- if (txany)
- mode |= IXM_IXANY;
- moxafunc(port->tableAddr, FC_SetFlowCtl, mode);
-}
-
-static int MoxaPortLineStatus(struct moxa_port *port)
-{
- void __iomem *ofsAddr;
- int val;
-
- ofsAddr = port->tableAddr;
- if (MOXA_IS_320(port->board))
- val = moxafuncret(ofsAddr, FC_LineStatus, 0);
- else
- val = readw(ofsAddr + FlagStat) >> 4;
- val &= 0x0B;
- if (val & 8)
- val |= 4;
- moxa_new_dcdstate(port, val & 8);
- val &= 7;
- return val;
-}
-
-static int MoxaPortWriteData(struct tty_struct *tty,
- const unsigned char *buffer, int len)
-{
- struct moxa_port *port = tty->driver_data;
- void __iomem *baseAddr, *ofsAddr, *ofs;
- unsigned int c, total;
- u16 head, tail, tx_mask, spage, epage;
- u16 pageno, pageofs, bufhead;
-
- ofsAddr = port->tableAddr;
- baseAddr = port->board->basemem;
- tx_mask = readw(ofsAddr + TX_mask);
- spage = readw(ofsAddr + Page_txb);
- epage = readw(ofsAddr + EndPage_txb);
- tail = readw(ofsAddr + TXwptr);
- head = readw(ofsAddr + TXrptr);
- c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask);
- if (c > len)
- c = len;
- moxaLog.txcnt[port->port.tty->index] += c;
- total = c;
- if (spage == epage) {
- bufhead = readw(ofsAddr + Ofs_txb);
- writew(spage, baseAddr + Control_reg);
- while (c > 0) {
- if (head > tail)
- len = head - tail - 1;
- else
- len = tx_mask + 1 - tail;
- len = (c > len) ? len : c;
- ofs = baseAddr + DynPage_addr + bufhead + tail;
- memcpy_toio(ofs, buffer, len);
- buffer += len;
- tail = (tail + len) & tx_mask;
- c -= len;
- }
- } else {
- pageno = spage + (tail >> 13);
- pageofs = tail & Page_mask;
- while (c > 0) {
- len = Page_size - pageofs;
- if (len > c)
- len = c;
- writeb(pageno, baseAddr + Control_reg);
- ofs = baseAddr + DynPage_addr + pageofs;
- memcpy_toio(ofs, buffer, len);
- buffer += len;
- if (++pageno == epage)
- pageno = spage;
- pageofs = 0;
- c -= len;
- }
- tail = (tail + total) & tx_mask;
- }
- writew(tail, ofsAddr + TXwptr);
- writeb(1, ofsAddr + CD180TXirq); /* start to send */
- return total;
-}
-
-static int MoxaPortReadData(struct moxa_port *port)
-{
- struct tty_struct *tty = port->port.tty;
- unsigned char *dst;
- void __iomem *baseAddr, *ofsAddr, *ofs;
- unsigned int count, len, total;
- u16 tail, rx_mask, spage, epage;
- u16 pageno, pageofs, bufhead, head;
-
- ofsAddr = port->tableAddr;
- baseAddr = port->board->basemem;
- head = readw(ofsAddr + RXrptr);
- tail = readw(ofsAddr + RXwptr);
- rx_mask = readw(ofsAddr + RX_mask);
- spage = readw(ofsAddr + Page_rxb);
- epage = readw(ofsAddr + EndPage_rxb);
- count = (tail >= head) ? (tail - head) : (tail - head + rx_mask + 1);
- if (count == 0)
- return 0;
-
- total = count;
- moxaLog.rxcnt[tty->index] += total;
- if (spage == epage) {
- bufhead = readw(ofsAddr + Ofs_rxb);
- writew(spage, baseAddr + Control_reg);
- while (count > 0) {
- ofs = baseAddr + DynPage_addr + bufhead + head;
- len = (tail >= head) ? (tail - head) :
- (rx_mask + 1 - head);
- len = tty_prepare_flip_string(tty, &dst,
- min(len, count));
- memcpy_fromio(dst, ofs, len);
- head = (head + len) & rx_mask;
- count -= len;
- }
- } else {
- pageno = spage + (head >> 13);
- pageofs = head & Page_mask;
- while (count > 0) {
- writew(pageno, baseAddr + Control_reg);
- ofs = baseAddr + DynPage_addr + pageofs;
- len = tty_prepare_flip_string(tty, &dst,
- min(Page_size - pageofs, count));
- memcpy_fromio(dst, ofs, len);
-
- count -= len;
- pageofs = (pageofs + len) & Page_mask;
- if (pageofs == 0 && ++pageno == epage)
- pageno = spage;
- }
- head = (head + total) & rx_mask;
- }
- writew(head, ofsAddr + RXrptr);
- if (readb(ofsAddr + FlagStat) & Xoff_state) {
- moxaLowWaterChk = 1;
- port->lowChkFlag = 1;
- }
- return total;
-}
-
-
-static int MoxaPortTxQueue(struct moxa_port *port)
-{
- void __iomem *ofsAddr = port->tableAddr;
- u16 rptr, wptr, mask;
-
- rptr = readw(ofsAddr + TXrptr);
- wptr = readw(ofsAddr + TXwptr);
- mask = readw(ofsAddr + TX_mask);
- return (wptr - rptr) & mask;
-}
-
-static int MoxaPortTxFree(struct moxa_port *port)
-{
- void __iomem *ofsAddr = port->tableAddr;
- u16 rptr, wptr, mask;
-
- rptr = readw(ofsAddr + TXrptr);
- wptr = readw(ofsAddr + TXwptr);
- mask = readw(ofsAddr + TX_mask);
- return mask - ((wptr - rptr) & mask);
-}
-
-static int MoxaPortRxQueue(struct moxa_port *port)
-{
- void __iomem *ofsAddr = port->tableAddr;
- u16 rptr, wptr, mask;
-
- rptr = readw(ofsAddr + RXrptr);
- wptr = readw(ofsAddr + RXwptr);
- mask = readw(ofsAddr + RX_mask);
- return (wptr - rptr) & mask;
-}
-
-static void MoxaPortTxDisable(struct moxa_port *port)
-{
- moxafunc(port->tableAddr, FC_SetXoffState, Magic_code);
-}
-
-static void MoxaPortTxEnable(struct moxa_port *port)
-{
- moxafunc(port->tableAddr, FC_SetXonState, Magic_code);
-}
-
-static int moxa_get_serial_info(struct moxa_port *info,
- struct serial_struct __user *retinfo)
-{
- struct serial_struct tmp = {
- .type = info->type,
- .line = info->port.tty->index,
- .flags = info->port.flags,
- .baud_base = 921600,
- .close_delay = info->port.close_delay
- };
- return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
-}
-
-
-static int moxa_set_serial_info(struct moxa_port *info,
- struct serial_struct __user *new_info)
-{
- struct serial_struct new_serial;
-
- if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
- return -EFAULT;
-
- if (new_serial.irq != 0 || new_serial.port != 0 ||
- new_serial.custom_divisor != 0 ||
- new_serial.baud_base != 921600)
- return -EPERM;
-
- if (!capable(CAP_SYS_ADMIN)) {
- if (((new_serial.flags & ~ASYNC_USR_MASK) !=
- (info->port.flags & ~ASYNC_USR_MASK)))
- return -EPERM;
- } else
- info->port.close_delay = new_serial.close_delay * HZ / 100;
-
- new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
- new_serial.flags |= (info->port.flags & ASYNC_FLAGS);
-
- MoxaSetFifo(info, new_serial.type == PORT_16550A);
-
- info->type = new_serial.type;
- return 0;
-}
-
-
-
-/*****************************************************************************
- * Static local functions: *
- *****************************************************************************/
-
-static void MoxaSetFifo(struct moxa_port *port, int enable)
-{
- void __iomem *ofsAddr = port->tableAddr;
-
- if (!enable) {
- moxafunc(ofsAddr, FC_SetRxFIFOTrig, 0);
- moxafunc(ofsAddr, FC_SetTxFIFOCnt, 1);
- } else {
- moxafunc(ofsAddr, FC_SetRxFIFOTrig, 3);
- moxafunc(ofsAddr, FC_SetTxFIFOCnt, 16);
- }
-}
diff --git a/drivers/char/moxa.h b/drivers/char/moxa.h
deleted file mode 100644
index 87d16ce57be..00000000000
--- a/drivers/char/moxa.h
+++ /dev/null
@@ -1,304 +0,0 @@
-#ifndef MOXA_H_FILE
-#define MOXA_H_FILE
-
-#define MOXA 0x400
-#define MOXA_GET_IQUEUE (MOXA + 1) /* get input buffered count */
-#define MOXA_GET_OQUEUE (MOXA + 2) /* get output buffered count */
-#define MOXA_GETDATACOUNT (MOXA + 23)
-#define MOXA_GET_IOQUEUE (MOXA + 27)
-#define MOXA_FLUSH_QUEUE (MOXA + 28)
-#define MOXA_GETMSTATUS (MOXA + 65)
-
-/*
- * System Configuration
- */
-
-#define Magic_code 0x404
-
-/*
- * for C218 BIOS initialization
- */
-#define C218_ConfBase 0x800
-#define C218_status (C218_ConfBase + 0) /* BIOS running status */
-#define C218_diag (C218_ConfBase + 2) /* diagnostic status */
-#define C218_key (C218_ConfBase + 4) /* WORD (0x218 for C218) */
-#define C218DLoad_len (C218_ConfBase + 6) /* WORD */
-#define C218check_sum (C218_ConfBase + 8) /* BYTE */
-#define C218chksum_ok (C218_ConfBase + 0x0a) /* BYTE (1:ok) */
-#define C218_TestRx (C218_ConfBase + 0x10) /* 8 bytes for 8 ports */
-#define C218_TestTx (C218_ConfBase + 0x18) /* 8 bytes for 8 ports */
-#define C218_RXerr (C218_ConfBase + 0x20) /* 8 bytes for 8 ports */
-#define C218_ErrFlag (C218_ConfBase + 0x28) /* 8 bytes for 8 ports */
-
-#define C218_LoadBuf 0x0F00
-#define C218_KeyCode 0x218
-#define CP204J_KeyCode 0x204
-
-/*
- * for C320 BIOS initialization
- */
-#define C320_ConfBase 0x800
-#define C320_LoadBuf 0x0f00
-#define STS_init 0x05 /* for C320_status */
-
-#define C320_status C320_ConfBase + 0 /* BIOS running status */
-#define C320_diag C320_ConfBase + 2 /* diagnostic status */
-#define C320_key C320_ConfBase + 4 /* WORD (0320H for C320) */
-#define C320DLoad_len C320_ConfBase + 6 /* WORD */
-#define C320check_sum C320_ConfBase + 8 /* WORD */
-#define C320chksum_ok C320_ConfBase + 0x0a /* WORD (1:ok) */
-#define C320bapi_len C320_ConfBase + 0x0c /* WORD */
-#define C320UART_no C320_ConfBase + 0x0e /* WORD */
-
-#define C320_KeyCode 0x320
-
-#define FixPage_addr 0x0000 /* starting addr of static page */
-#define DynPage_addr 0x2000 /* starting addr of dynamic page */
-#define C218_start 0x3000 /* starting addr of C218 BIOS prg */
-#define Control_reg 0x1ff0 /* select page and reset control */
-#define HW_reset 0x80
-
-/*
- * Function Codes
- */
-#define FC_CardReset 0x80
-#define FC_ChannelReset 1 /* C320 firmware not supported */
-#define FC_EnableCH 2
-#define FC_DisableCH 3
-#define FC_SetParam 4
-#define FC_SetMode 5
-#define FC_SetRate 6
-#define FC_LineControl 7
-#define FC_LineStatus 8
-#define FC_XmitControl 9
-#define FC_FlushQueue 10
-#define FC_SendBreak 11
-#define FC_StopBreak 12
-#define FC_LoopbackON 13
-#define FC_LoopbackOFF 14
-#define FC_ClrIrqTable 15
-#define FC_SendXon 16
-#define FC_SetTermIrq 17 /* C320 firmware not supported */
-#define FC_SetCntIrq 18 /* C320 firmware not supported */
-#define FC_SetBreakIrq 19
-#define FC_SetLineIrq 20
-#define FC_SetFlowCtl 21
-#define FC_GenIrq 22
-#define FC_InCD180 23
-#define FC_OutCD180 24
-#define FC_InUARTreg 23
-#define FC_OutUARTreg 24
-#define FC_SetXonXoff 25
-#define FC_OutCD180CCR 26
-#define FC_ExtIQueue 27
-#define FC_ExtOQueue 28
-#define FC_ClrLineIrq 29
-#define FC_HWFlowCtl 30
-#define FC_GetClockRate 35
-#define FC_SetBaud 36
-#define FC_SetDataMode 41
-#define FC_GetCCSR 43
-#define FC_GetDataError 45
-#define FC_RxControl 50
-#define FC_ImmSend 51
-#define FC_SetXonState 52
-#define FC_SetXoffState 53
-#define FC_SetRxFIFOTrig 54
-#define FC_SetTxFIFOCnt 55
-#define FC_UnixRate 56
-#define FC_UnixResetTimer 57
-
-#define RxFIFOTrig1 0
-#define RxFIFOTrig4 1
-#define RxFIFOTrig8 2
-#define RxFIFOTrig14 3
-
-/*
- * Dual-Ported RAM
- */
-#define DRAM_global 0
-#define INT_data (DRAM_global + 0)
-#define Config_base (DRAM_global + 0x108)
-
-#define IRQindex (INT_data + 0)
-#define IRQpending (INT_data + 4)
-#define IRQtable (INT_data + 8)
-
-/*
- * Interrupt Status
- */
-#define IntrRx 0x01 /* receiver data O.K. */
-#define IntrTx 0x02 /* transmit buffer empty */
-#define IntrFunc 0x04 /* function complete */
-#define IntrBreak 0x08 /* received break */
-#define IntrLine 0x10 /* line status change
- for transmitter */
-#define IntrIntr 0x20 /* received INTR code */
-#define IntrQuit 0x40 /* received QUIT code */
-#define IntrEOF 0x80 /* received EOF code */
-
-#define IntrRxTrigger 0x100 /* rx data count reach tigger value */
-#define IntrTxTrigger 0x200 /* tx data count below trigger value */
-
-#define Magic_no (Config_base + 0)
-#define Card_model_no (Config_base + 2)
-#define Total_ports (Config_base + 4)
-#define Module_cnt (Config_base + 8)
-#define Module_no (Config_base + 10)
-#define Timer_10ms (Config_base + 14)
-#define Disable_IRQ (Config_base + 20)
-#define TMS320_PORT1 (Config_base + 22)
-#define TMS320_PORT2 (Config_base + 24)
-#define TMS320_CLOCK (Config_base + 26)
-
-/*
- * DATA BUFFER in DRAM
- */
-#define Extern_table 0x400 /* Base address of the external table
- (24 words * 64) total 3K bytes
- (24 words * 128) total 6K bytes */
-#define Extern_size 0x60 /* 96 bytes */
-#define RXrptr 0x00 /* read pointer for RX buffer */
-#define RXwptr 0x02 /* write pointer for RX buffer */
-#define TXrptr 0x04 /* read pointer for TX buffer */
-#define TXwptr 0x06 /* write pointer for TX buffer */
-#define HostStat 0x08 /* IRQ flag and general flag */
-#define FlagStat 0x0A
-#define FlowControl 0x0C /* B7 B6 B5 B4 B3 B2 B1 B0 */
- /* x x x x | | | | */
- /* | | | + CTS flow */
- /* | | +--- RTS flow */
- /* | +------ TX Xon/Xoff */
- /* +--------- RX Xon/Xoff */
-#define Break_cnt 0x0E /* received break count */
-#define CD180TXirq 0x10 /* if non-0: enable TX irq */
-#define RX_mask 0x12
-#define TX_mask 0x14
-#define Ofs_rxb 0x16
-#define Ofs_txb 0x18
-#define Page_rxb 0x1A
-#define Page_txb 0x1C
-#define EndPage_rxb 0x1E
-#define EndPage_txb 0x20
-#define Data_error 0x22
-#define RxTrigger 0x28
-#define TxTrigger 0x2a
-
-#define rRXwptr 0x34
-#define Low_water 0x36
-
-#define FuncCode 0x40
-#define FuncArg 0x42
-#define FuncArg1 0x44
-
-#define C218rx_size 0x2000 /* 8K bytes */
-#define C218tx_size 0x8000 /* 32K bytes */
-
-#define C218rx_mask (C218rx_size - 1)
-#define C218tx_mask (C218tx_size - 1)
-
-#define C320p8rx_size 0x2000
-#define C320p8tx_size 0x8000
-#define C320p8rx_mask (C320p8rx_size - 1)
-#define C320p8tx_mask (C320p8tx_size - 1)
-
-#define C320p16rx_size 0x2000
-#define C320p16tx_size 0x4000
-#define C320p16rx_mask (C320p16rx_size - 1)
-#define C320p16tx_mask (C320p16tx_size - 1)
-
-#define C320p24rx_size 0x2000
-#define C320p24tx_size 0x2000
-#define C320p24rx_mask (C320p24rx_size - 1)
-#define C320p24tx_mask (C320p24tx_size - 1)
-
-#define C320p32rx_size 0x1000
-#define C320p32tx_size 0x1000
-#define C320p32rx_mask (C320p32rx_size - 1)
-#define C320p32tx_mask (C320p32tx_size - 1)
-
-#define Page_size 0x2000U
-#define Page_mask (Page_size - 1)
-#define C218rx_spage 3
-#define C218tx_spage 4
-#define C218rx_pageno 1
-#define C218tx_pageno 4
-#define C218buf_pageno 5
-
-#define C320p8rx_spage 3
-#define C320p8tx_spage 4
-#define C320p8rx_pgno 1
-#define C320p8tx_pgno 4
-#define C320p8buf_pgno 5
-
-#define C320p16rx_spage 3
-#define C320p16tx_spage 4
-#define C320p16rx_pgno 1
-#define C320p16tx_pgno 2
-#define C320p16buf_pgno 3
-
-#define C320p24rx_spage 3
-#define C320p24tx_spage 4
-#define C320p24rx_pgno 1
-#define C320p24tx_pgno 1
-#define C320p24buf_pgno 2
-
-#define C320p32rx_spage 3
-#define C320p32tx_ofs C320p32rx_size
-#define C320p32tx_spage 3
-#define C320p32buf_pgno 1
-
-/*
- * Host Status
- */
-#define WakeupRx 0x01
-#define WakeupTx 0x02
-#define WakeupBreak 0x08
-#define WakeupLine 0x10
-#define WakeupIntr 0x20
-#define WakeupQuit 0x40
-#define WakeupEOF 0x80 /* used in VTIME control */
-#define WakeupRxTrigger 0x100
-#define WakeupTxTrigger 0x200
-/*
- * Flag status
- */
-#define Rx_over 0x01
-#define Xoff_state 0x02
-#define Tx_flowOff 0x04
-#define Tx_enable 0x08
-#define CTS_state 0x10
-#define DSR_state 0x20
-#define DCD_state 0x80
-/*
- * FlowControl
- */
-#define CTS_FlowCtl 1
-#define RTS_FlowCtl 2
-#define Tx_FlowCtl 4
-#define Rx_FlowCtl 8
-#define IXM_IXANY 0x10
-
-#define LowWater 128
-
-#define DTR_ON 1
-#define RTS_ON 2
-#define CTS_ON 1
-#define DSR_ON 2
-#define DCD_ON 8
-
-/* mode definition */
-#define MX_CS8 0x03
-#define MX_CS7 0x02
-#define MX_CS6 0x01
-#define MX_CS5 0x00
-
-#define MX_STOP1 0x00
-#define MX_STOP15 0x04
-#define MX_STOP2 0x08
-
-#define MX_PARNONE 0x00
-#define MX_PAREVEN 0x40
-#define MX_PARODD 0xC0
-
-#endif
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
deleted file mode 100644
index dd9d75351cd..00000000000
--- a/drivers/char/mxser.c
+++ /dev/null
@@ -1,2757 +0,0 @@
-/*
- * mxser.c -- MOXA Smartio/Industio family multiport serial driver.
- *
- * Copyright (C) 1999-2006 Moxa Technologies (support@moxa.com).
- * Copyright (C) 2006-2008 Jiri Slaby <jirislaby@gmail.com>
- *
- * This code is loosely based on the 1.8 moxa driver which is based on
- * Linux serial driver, written by Linus Torvalds, Theodore T'so and
- * others.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
- * <alan@lxorguk.ukuu.org.uk>. The original 1.8 code is available on
- * www.moxa.com.
- * - Fixed x86_64 cleanness
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/serial_reg.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/bitops.h>
-#include <linux/slab.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/uaccess.h>
-
-#include "mxser.h"
-
-#define MXSER_VERSION "2.0.5" /* 1.14 */
-#define MXSERMAJOR 174
-
-#define MXSER_BOARDS 4 /* Max. boards */
-#define MXSER_PORTS_PER_BOARD 8 /* Max. ports per board */
-#define MXSER_PORTS (MXSER_BOARDS * MXSER_PORTS_PER_BOARD)
-#define MXSER_ISR_PASS_LIMIT 100
-
-/*CheckIsMoxaMust return value*/
-#define MOXA_OTHER_UART 0x00
-#define MOXA_MUST_MU150_HWID 0x01
-#define MOXA_MUST_MU860_HWID 0x02
-
-#define WAKEUP_CHARS 256
-
-#define UART_MCR_AFE 0x20
-#define UART_LSR_SPECIAL 0x1E
-
-#define PCI_DEVICE_ID_POS104UL 0x1044
-#define PCI_DEVICE_ID_CB108 0x1080
-#define PCI_DEVICE_ID_CP102UF 0x1023
-#define PCI_DEVICE_ID_CP112UL 0x1120
-#define PCI_DEVICE_ID_CB114 0x1142
-#define PCI_DEVICE_ID_CP114UL 0x1143
-#define PCI_DEVICE_ID_CB134I 0x1341
-#define PCI_DEVICE_ID_CP138U 0x1380
-
-
-#define C168_ASIC_ID 1
-#define C104_ASIC_ID 2
-#define C102_ASIC_ID 0xB
-#define CI132_ASIC_ID 4
-#define CI134_ASIC_ID 3
-#define CI104J_ASIC_ID 5
-
-#define MXSER_HIGHBAUD 1
-#define MXSER_HAS2 2
-
-/* This is only for PCI */
-static const struct {
- int type;
- int tx_fifo;
- int rx_fifo;
- int xmit_fifo_size;
- int rx_high_water;
- int rx_trigger;
- int rx_low_water;
- long max_baud;
-} Gpci_uart_info[] = {
- {MOXA_OTHER_UART, 16, 16, 16, 14, 14, 1, 921600L},
- {MOXA_MUST_MU150_HWID, 64, 64, 64, 48, 48, 16, 230400L},
- {MOXA_MUST_MU860_HWID, 128, 128, 128, 96, 96, 32, 921600L}
-};
-#define UART_INFO_NUM ARRAY_SIZE(Gpci_uart_info)
-
-struct mxser_cardinfo {
- char *name;
- unsigned int nports;
- unsigned int flags;
-};
-
-static const struct mxser_cardinfo mxser_cards[] = {
-/* 0*/ { "C168 series", 8, },
- { "C104 series", 4, },
- { "CI-104J series", 4, },
- { "C168H/PCI series", 8, },
- { "C104H/PCI series", 4, },
-/* 5*/ { "C102 series", 4, MXSER_HAS2 }, /* C102-ISA */
- { "CI-132 series", 4, MXSER_HAS2 },
- { "CI-134 series", 4, },
- { "CP-132 series", 2, },
- { "CP-114 series", 4, },
-/*10*/ { "CT-114 series", 4, },
- { "CP-102 series", 2, MXSER_HIGHBAUD },
- { "CP-104U series", 4, },
- { "CP-168U series", 8, },
- { "CP-132U series", 2, },
-/*15*/ { "CP-134U series", 4, },
- { "CP-104JU series", 4, },
- { "Moxa UC7000 Serial", 8, }, /* RC7000 */
- { "CP-118U series", 8, },
- { "CP-102UL series", 2, },
-/*20*/ { "CP-102U series", 2, },
- { "CP-118EL series", 8, },
- { "CP-168EL series", 8, },
- { "CP-104EL series", 4, },
- { "CB-108 series", 8, },
-/*25*/ { "CB-114 series", 4, },
- { "CB-134I series", 4, },
- { "CP-138U series", 8, },
- { "POS-104UL series", 4, },
- { "CP-114UL series", 4, },
-/*30*/ { "CP-102UF series", 2, },
- { "CP-112UL series", 2, },
-};
-
-/* driver_data correspond to the lines in the structure above
- see also ISA probe function before you change something */
-static struct pci_device_id mxser_pcibrds[] = {
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C168), .driver_data = 3 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_C104), .driver_data = 4 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132), .driver_data = 8 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP114), .driver_data = 9 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CT114), .driver_data = 10 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102), .driver_data = 11 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104U), .driver_data = 12 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168U), .driver_data = 13 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP132U), .driver_data = 14 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP134U), .driver_data = 15 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104JU),.driver_data = 16 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_RC7000), .driver_data = 17 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118U), .driver_data = 18 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102UL),.driver_data = 19 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP102U), .driver_data = 20 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP118EL),.driver_data = 21 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP168EL),.driver_data = 22 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_MOXA_CP104EL),.driver_data = 23 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB108), .driver_data = 24 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB114), .driver_data = 25 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CB134I), .driver_data = 26 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP138U), .driver_data = 27 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_POS104UL), .driver_data = 28 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP114UL), .driver_data = 29 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP102UF), .driver_data = 30 },
- { PCI_VDEVICE(MOXA, PCI_DEVICE_ID_CP112UL), .driver_data = 31 },
- { }
-};
-MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
-
-static unsigned long ioaddr[MXSER_BOARDS];
-static int ttymajor = MXSERMAJOR;
-
-/* Variables for insmod */
-
-MODULE_AUTHOR("Casper Yang");
-MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver");
-module_param_array(ioaddr, ulong, NULL, 0);
-MODULE_PARM_DESC(ioaddr, "ISA io addresses to look for a moxa board");
-module_param(ttymajor, int, 0);
-MODULE_LICENSE("GPL");
-
-struct mxser_log {
- int tick;
- unsigned long rxcnt[MXSER_PORTS];
- unsigned long txcnt[MXSER_PORTS];
-};
-
-struct mxser_mon {
- unsigned long rxcnt;
- unsigned long txcnt;
- unsigned long up_rxcnt;
- unsigned long up_txcnt;
- int modem_status;
- unsigned char hold_reason;
-};
-
-struct mxser_mon_ext {
- unsigned long rx_cnt[32];
- unsigned long tx_cnt[32];
- unsigned long up_rxcnt[32];
- unsigned long up_txcnt[32];
- int modem_status[32];
-
- long baudrate[32];
- int databits[32];
- int stopbits[32];
- int parity[32];
- int flowctrl[32];
- int fifo[32];
- int iftype[32];
-};
-
-struct mxser_board;
-
-struct mxser_port {
- struct tty_port port;
- struct mxser_board *board;
-
- unsigned long ioaddr;
- unsigned long opmode_ioaddr;
- int max_baud;
-
- int rx_high_water;
- int rx_trigger; /* Rx fifo trigger level */
- int rx_low_water;
- int baud_base; /* max. speed */
- int type; /* UART type */
-
- int x_char; /* xon/xoff character */
- int IER; /* Interrupt Enable Register */
- int MCR; /* Modem control register */
-
- unsigned char stop_rx;
- unsigned char ldisc_stop_rx;
-
- int custom_divisor;
- unsigned char err_shadow;
-
- struct async_icount icount; /* kernel counters for 4 input interrupts */
- int timeout;
-
- int read_status_mask;
- int ignore_status_mask;
- int xmit_fifo_size;
- int xmit_head;
- int xmit_tail;
- int xmit_cnt;
-
- struct ktermios normal_termios;
-
- struct mxser_mon mon_data;
-
- spinlock_t slock;
-};
-
-struct mxser_board {
- unsigned int idx;
- int irq;
- const struct mxser_cardinfo *info;
- unsigned long vector;
- unsigned long vector_mask;
-
- int chip_flag;
- int uart_type;
-
- struct mxser_port ports[MXSER_PORTS_PER_BOARD];
-};
-
-struct mxser_mstatus {
- tcflag_t cflag;
- int cts;
- int dsr;
- int ri;
- int dcd;
-};
-
-static struct mxser_board mxser_boards[MXSER_BOARDS];
-static struct tty_driver *mxvar_sdriver;
-static struct mxser_log mxvar_log;
-static int mxser_set_baud_method[MXSER_PORTS + 1];
-
-static void mxser_enable_must_enchance_mode(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr |= MOXA_MUST_EFR_EFRB_ENABLE;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-#ifdef CONFIG_PCI
-static void mxser_disable_must_enchance_mode(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_EFRB_ENABLE;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-#endif
-
-static void mxser_set_must_xon1_value(unsigned long baseio, u8 value)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_BANK_MASK;
- efr |= MOXA_MUST_EFR_BANK0;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(value, baseio + MOXA_MUST_XON1_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_set_must_xoff1_value(unsigned long baseio, u8 value)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_BANK_MASK;
- efr |= MOXA_MUST_EFR_BANK0;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(value, baseio + MOXA_MUST_XOFF1_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_set_must_fifo_value(struct mxser_port *info)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(info->ioaddr + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, info->ioaddr + UART_LCR);
-
- efr = inb(info->ioaddr + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_BANK_MASK;
- efr |= MOXA_MUST_EFR_BANK1;
-
- outb(efr, info->ioaddr + MOXA_MUST_EFR_REGISTER);
- outb((u8)info->rx_high_water, info->ioaddr + MOXA_MUST_RBRTH_REGISTER);
- outb((u8)info->rx_trigger, info->ioaddr + MOXA_MUST_RBRTI_REGISTER);
- outb((u8)info->rx_low_water, info->ioaddr + MOXA_MUST_RBRTL_REGISTER);
- outb(oldlcr, info->ioaddr + UART_LCR);
-}
-
-static void mxser_set_must_enum_value(unsigned long baseio, u8 value)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_BANK_MASK;
- efr |= MOXA_MUST_EFR_BANK2;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(value, baseio + MOXA_MUST_ENUM_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-#ifdef CONFIG_PCI
-static void mxser_get_must_hardware_id(unsigned long baseio, u8 *pId)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_BANK_MASK;
- efr |= MOXA_MUST_EFR_BANK2;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- *pId = inb(baseio + MOXA_MUST_HWID_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-#endif
-
-static void SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_SF_MASK;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_enable_must_tx_software_flow_control(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_SF_TX_MASK;
- efr |= MOXA_MUST_EFR_SF_TX1;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_disable_must_tx_software_flow_control(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_SF_TX_MASK;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_enable_must_rx_software_flow_control(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_SF_RX_MASK;
- efr |= MOXA_MUST_EFR_SF_RX1;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-static void mxser_disable_must_rx_software_flow_control(unsigned long baseio)
-{
- u8 oldlcr;
- u8 efr;
-
- oldlcr = inb(baseio + UART_LCR);
- outb(MOXA_MUST_ENTER_ENCHANCE, baseio + UART_LCR);
-
- efr = inb(baseio + MOXA_MUST_EFR_REGISTER);
- efr &= ~MOXA_MUST_EFR_SF_RX_MASK;
-
- outb(efr, baseio + MOXA_MUST_EFR_REGISTER);
- outb(oldlcr, baseio + UART_LCR);
-}
-
-#ifdef CONFIG_PCI
-static int __devinit CheckIsMoxaMust(unsigned long io)
-{
- u8 oldmcr, hwid;
- int i;
-
- outb(0, io + UART_LCR);
- mxser_disable_must_enchance_mode(io);
- oldmcr = inb(io + UART_MCR);
- outb(0, io + UART_MCR);
- mxser_set_must_xon1_value(io, 0x11);
- if ((hwid = inb(io + UART_MCR)) != 0) {
- outb(oldmcr, io + UART_MCR);
- return MOXA_OTHER_UART;
- }
-
- mxser_get_must_hardware_id(io, &hwid);
- for (i = 1; i < UART_INFO_NUM; i++) { /* 0 = OTHER_UART */
- if (hwid == Gpci_uart_info[i].type)
- return (int)hwid;
- }
- return MOXA_OTHER_UART;
-}
-#endif
-
-static void process_txrx_fifo(struct mxser_port *info)
-{
- int i;
-
- if ((info->type == PORT_16450) || (info->type == PORT_8250)) {
- info->rx_trigger = 1;
- info->rx_high_water = 1;
- info->rx_low_water = 1;
- info->xmit_fifo_size = 1;
- } else
- for (i = 0; i < UART_INFO_NUM; i++)
- if (info->board->chip_flag == Gpci_uart_info[i].type) {
- info->rx_trigger = Gpci_uart_info[i].rx_trigger;
- info->rx_low_water = Gpci_uart_info[i].rx_low_water;
- info->rx_high_water = Gpci_uart_info[i].rx_high_water;
- info->xmit_fifo_size = Gpci_uart_info[i].xmit_fifo_size;
- break;
- }
-}
-
-static unsigned char mxser_get_msr(int baseaddr, int mode, int port)
-{
- static unsigned char mxser_msr[MXSER_PORTS + 1];
- unsigned char status = 0;
-
- status = inb(baseaddr + UART_MSR);
-
- mxser_msr[port] &= 0x0F;
- mxser_msr[port] |= status;
- status = mxser_msr[port];
- if (mode)
- mxser_msr[port] = 0;
-
- return status;
-}
-
-static int mxser_carrier_raised(struct tty_port *port)
-{
- struct mxser_port *mp = container_of(port, struct mxser_port, port);
- return (inb(mp->ioaddr + UART_MSR) & UART_MSR_DCD)?1:0;
-}
-
-static void mxser_dtr_rts(struct tty_port *port, int on)
-{
- struct mxser_port *mp = container_of(port, struct mxser_port, port);
- unsigned long flags;
-
- spin_lock_irqsave(&mp->slock, flags);
- if (on)
- outb(inb(mp->ioaddr + UART_MCR) |
- UART_MCR_DTR | UART_MCR_RTS, mp->ioaddr + UART_MCR);
- else
- outb(inb(mp->ioaddr + UART_MCR)&~(UART_MCR_DTR | UART_MCR_RTS),
- mp->ioaddr + UART_MCR);
- spin_unlock_irqrestore(&mp->slock, flags);
-}
-
-static int mxser_set_baud(struct tty_struct *tty, long newspd)
-{
- struct mxser_port *info = tty->driver_data;
- int quot = 0, baud;
- unsigned char cval;
-
- if (!info->ioaddr)
- return -1;
-
- if (newspd > info->max_baud)
- return -1;
-
- if (newspd == 134) {
- quot = 2 * info->baud_base / 269;
- tty_encode_baud_rate(tty, 134, 134);
- } else if (newspd) {
- quot = info->baud_base / newspd;
- if (quot == 0)
- quot = 1;
- baud = info->baud_base/quot;
- tty_encode_baud_rate(tty, baud, baud);
- } else {
- quot = 0;
- }
-
- info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base);
- info->timeout += HZ / 50; /* Add .02 seconds of slop */
-
- if (quot) {
- info->MCR |= UART_MCR_DTR;
- outb(info->MCR, info->ioaddr + UART_MCR);
- } else {
- info->MCR &= ~UART_MCR_DTR;
- outb(info->MCR, info->ioaddr + UART_MCR);
- return 0;
- }
-
- cval = inb(info->ioaddr + UART_LCR);
-
- outb(cval | UART_LCR_DLAB, info->ioaddr + UART_LCR); /* set DLAB */
-
- outb(quot & 0xff, info->ioaddr + UART_DLL); /* LS of divisor */
- outb(quot >> 8, info->ioaddr + UART_DLM); /* MS of divisor */
- outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */
-
-#ifdef BOTHER
- if (C_BAUD(tty) == BOTHER) {
- quot = info->baud_base % newspd;
- quot *= 8;
- if (quot % newspd > newspd / 2) {
- quot /= newspd;
- quot++;
- } else
- quot /= newspd;
-
- mxser_set_must_enum_value(info->ioaddr, quot);
- } else
-#endif
- mxser_set_must_enum_value(info->ioaddr, 0);
-
- return 0;
-}
-
-/*
- * This routine is called to set the UART divisor registers to match
- * the specified baud rate for a serial port.
- */
-static int mxser_change_speed(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned cflag, cval, fcr;
- int ret = 0;
- unsigned char status;
-
- cflag = tty->termios->c_cflag;
- if (!info->ioaddr)
- return ret;
-
- if (mxser_set_baud_method[tty->index] == 0)
- mxser_set_baud(tty, tty_get_baud_rate(tty));
-
- /* byte size and parity */
- switch (cflag & CSIZE) {
- case CS5:
- cval = 0x00;
- break;
- case CS6:
- cval = 0x01;
- break;
- case CS7:
- cval = 0x02;
- break;
- case CS8:
- cval = 0x03;
- break;
- default:
- cval = 0x00;
- break; /* too keep GCC shut... */
- }
- if (cflag & CSTOPB)
- cval |= 0x04;
- if (cflag & PARENB)
- cval |= UART_LCR_PARITY;
- if (!(cflag & PARODD))
- cval |= UART_LCR_EPAR;
- if (cflag & CMSPAR)
- cval |= UART_LCR_SPAR;
-
- if ((info->type == PORT_8250) || (info->type == PORT_16450)) {
- if (info->board->chip_flag) {
- fcr = UART_FCR_ENABLE_FIFO;
- fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
- mxser_set_must_fifo_value(info);
- } else
- fcr = 0;
- } else {
- fcr = UART_FCR_ENABLE_FIFO;
- if (info->board->chip_flag) {
- fcr |= MOXA_MUST_FCR_GDA_MODE_ENABLE;
- mxser_set_must_fifo_value(info);
- } else {
- switch (info->rx_trigger) {
- case 1:
- fcr |= UART_FCR_TRIGGER_1;
- break;
- case 4:
- fcr |= UART_FCR_TRIGGER_4;
- break;
- case 8:
- fcr |= UART_FCR_TRIGGER_8;
- break;
- default:
- fcr |= UART_FCR_TRIGGER_14;
- break;
- }
- }
- }
-
- /* CTS flow control flag and modem status interrupts */
- info->IER &= ~UART_IER_MSI;
- info->MCR &= ~UART_MCR_AFE;
- if (cflag & CRTSCTS) {
- info->port.flags |= ASYNC_CTS_FLOW;
- info->IER |= UART_IER_MSI;
- if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
- info->MCR |= UART_MCR_AFE;
- } else {
- status = inb(info->ioaddr + UART_MSR);
- if (tty->hw_stopped) {
- if (status & UART_MSR_CTS) {
- tty->hw_stopped = 0;
- if (info->type != PORT_16550A &&
- !info->board->chip_flag) {
- outb(info->IER & ~UART_IER_THRI,
- info->ioaddr +
- UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr +
- UART_IER);
- }
- tty_wakeup(tty);
- }
- } else {
- if (!(status & UART_MSR_CTS)) {
- tty->hw_stopped = 1;
- if ((info->type != PORT_16550A) &&
- (!info->board->chip_flag)) {
- info->IER &= ~UART_IER_THRI;
- outb(info->IER, info->ioaddr +
- UART_IER);
- }
- }
- }
- }
- } else {
- info->port.flags &= ~ASYNC_CTS_FLOW;
- }
- outb(info->MCR, info->ioaddr + UART_MCR);
- if (cflag & CLOCAL) {
- info->port.flags &= ~ASYNC_CHECK_CD;
- } else {
- info->port.flags |= ASYNC_CHECK_CD;
- info->IER |= UART_IER_MSI;
- }
- outb(info->IER, info->ioaddr + UART_IER);
-
- /*
- * Set up parity check flag
- */
- info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
- if (I_INPCK(tty))
- info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
- if (I_BRKINT(tty) || I_PARMRK(tty))
- info->read_status_mask |= UART_LSR_BI;
-
- info->ignore_status_mask = 0;
-
- if (I_IGNBRK(tty)) {
- info->ignore_status_mask |= UART_LSR_BI;
- info->read_status_mask |= UART_LSR_BI;
- /*
- * If we're ignore parity and break indicators, ignore
- * overruns too. (For real raw support).
- */
- if (I_IGNPAR(tty)) {
- info->ignore_status_mask |=
- UART_LSR_OE |
- UART_LSR_PE |
- UART_LSR_FE;
- info->read_status_mask |=
- UART_LSR_OE |
- UART_LSR_PE |
- UART_LSR_FE;
- }
- }
- if (info->board->chip_flag) {
- mxser_set_must_xon1_value(info->ioaddr, START_CHAR(tty));
- mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(tty));
- if (I_IXON(tty)) {
- mxser_enable_must_rx_software_flow_control(
- info->ioaddr);
- } else {
- mxser_disable_must_rx_software_flow_control(
- info->ioaddr);
- }
- if (I_IXOFF(tty)) {
- mxser_enable_must_tx_software_flow_control(
- info->ioaddr);
- } else {
- mxser_disable_must_tx_software_flow_control(
- info->ioaddr);
- }
- }
-
-
- outb(fcr, info->ioaddr + UART_FCR); /* set fcr */
- outb(cval, info->ioaddr + UART_LCR);
-
- return ret;
-}
-
-static void mxser_check_modem_status(struct tty_struct *tty,
- struct mxser_port *port, int status)
-{
- /* update input line counters */
- if (status & UART_MSR_TERI)
- port->icount.rng++;
- if (status & UART_MSR_DDSR)
- port->icount.dsr++;
- if (status & UART_MSR_DDCD)
- port->icount.dcd++;
- if (status & UART_MSR_DCTS)
- port->icount.cts++;
- port->mon_data.modem_status = status;
- wake_up_interruptible(&port->port.delta_msr_wait);
-
- if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
- if (status & UART_MSR_DCD)
- wake_up_interruptible(&port->port.open_wait);
- }
-
- if (port->port.flags & ASYNC_CTS_FLOW) {
- if (tty->hw_stopped) {
- if (status & UART_MSR_CTS) {
- tty->hw_stopped = 0;
-
- if ((port->type != PORT_16550A) &&
- (!port->board->chip_flag)) {
- outb(port->IER & ~UART_IER_THRI,
- port->ioaddr + UART_IER);
- port->IER |= UART_IER_THRI;
- outb(port->IER, port->ioaddr +
- UART_IER);
- }
- tty_wakeup(tty);
- }
- } else {
- if (!(status & UART_MSR_CTS)) {
- tty->hw_stopped = 1;
- if (port->type != PORT_16550A &&
- !port->board->chip_flag) {
- port->IER &= ~UART_IER_THRI;
- outb(port->IER, port->ioaddr +
- UART_IER);
- }
- }
- }
- }
-}
-
-static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
-{
- struct mxser_port *info = container_of(port, struct mxser_port, port);
- unsigned long page;
- unsigned long flags;
-
- page = __get_free_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
-
- spin_lock_irqsave(&info->slock, flags);
-
- if (!info->ioaddr || !info->type) {
- set_bit(TTY_IO_ERROR, &tty->flags);
- free_page(page);
- spin_unlock_irqrestore(&info->slock, flags);
- return 0;
- }
- info->port.xmit_buf = (unsigned char *) page;
-
- /*
- * Clear the FIFO buffers and disable them
- * (they will be reenabled in mxser_change_speed())
- */
- if (info->board->chip_flag)
- outb((UART_FCR_CLEAR_RCVR |
- UART_FCR_CLEAR_XMIT |
- MOXA_MUST_FCR_GDA_MODE_ENABLE), info->ioaddr + UART_FCR);
- else
- outb((UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT),
- info->ioaddr + UART_FCR);
-
- /*
- * At this point there's no way the LSR could still be 0xFF;
- * if it is, then bail out, because there's likely no UART
- * here.
- */
- if (inb(info->ioaddr + UART_LSR) == 0xff) {
- spin_unlock_irqrestore(&info->slock, flags);
- if (capable(CAP_SYS_ADMIN)) {
- set_bit(TTY_IO_ERROR, &tty->flags);
- return 0;
- } else
- return -ENODEV;
- }
-
- /*
- * Clear the interrupt registers.
- */
- (void) inb(info->ioaddr + UART_LSR);
- (void) inb(info->ioaddr + UART_RX);
- (void) inb(info->ioaddr + UART_IIR);
- (void) inb(info->ioaddr + UART_MSR);
-
- /*
- * Now, initialize the UART
- */
- outb(UART_LCR_WLEN8, info->ioaddr + UART_LCR); /* reset DLAB */
- info->MCR = UART_MCR_DTR | UART_MCR_RTS;
- outb(info->MCR, info->ioaddr + UART_MCR);
-
- /*
- * Finally, enable interrupts
- */
- info->IER = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI;
-
- if (info->board->chip_flag)
- info->IER |= MOXA_MUST_IER_EGDAI;
- outb(info->IER, info->ioaddr + UART_IER); /* enable interrupts */
-
- /*
- * And clear the interrupt registers again for luck.
- */
- (void) inb(info->ioaddr + UART_LSR);
- (void) inb(info->ioaddr + UART_RX);
- (void) inb(info->ioaddr + UART_IIR);
- (void) inb(info->ioaddr + UART_MSR);
-
- clear_bit(TTY_IO_ERROR, &tty->flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
- /*
- * and set the speed of the serial port
- */
- mxser_change_speed(tty, NULL);
- spin_unlock_irqrestore(&info->slock, flags);
-
- return 0;
-}
-
-/*
- * This routine will shutdown a serial port
- */
-static void mxser_shutdown_port(struct tty_port *port)
-{
- struct mxser_port *info = container_of(port, struct mxser_port, port);
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
-
- /*
- * clear delta_msr_wait queue to avoid mem leaks: we may free the irq
- * here so the queue might never be waken up
- */
- wake_up_interruptible(&info->port.delta_msr_wait);
-
- /*
- * Free the xmit buffer, if necessary
- */
- if (info->port.xmit_buf) {
- free_page((unsigned long) info->port.xmit_buf);
- info->port.xmit_buf = NULL;
- }
-
- info->IER = 0;
- outb(0x00, info->ioaddr + UART_IER);
-
- /* clear Rx/Tx FIFO's */
- if (info->board->chip_flag)
- outb(UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT |
- MOXA_MUST_FCR_GDA_MODE_ENABLE,
- info->ioaddr + UART_FCR);
- else
- outb(UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
- info->ioaddr + UART_FCR);
-
- /* read data port to reset things */
- (void) inb(info->ioaddr + UART_RX);
-
-
- if (info->board->chip_flag)
- SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
-
- spin_unlock_irqrestore(&info->slock, flags);
-}
-
-/*
- * This routine is called whenever a serial port is opened. It
- * enables interrupts for a serial port, linking in its async structure into
- * the IRQ chain. It also performs the serial-specific
- * initialization for the tty structure.
- */
-static int mxser_open(struct tty_struct *tty, struct file *filp)
-{
- struct mxser_port *info;
- int line;
-
- line = tty->index;
- if (line == MXSER_PORTS)
- return 0;
- if (line < 0 || line > MXSER_PORTS)
- return -ENODEV;
- info = &mxser_boards[line / MXSER_PORTS_PER_BOARD].ports[line % MXSER_PORTS_PER_BOARD];
- if (!info->ioaddr)
- return -ENODEV;
-
- tty->driver_data = info;
- return tty_port_open(&info->port, tty, filp);
-}
-
-static void mxser_flush_buffer(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
- char fcr;
- unsigned long flags;
-
-
- spin_lock_irqsave(&info->slock, flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
- fcr = inb(info->ioaddr + UART_FCR);
- outb((fcr | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT),
- info->ioaddr + UART_FCR);
- outb(fcr, info->ioaddr + UART_FCR);
-
- spin_unlock_irqrestore(&info->slock, flags);
-
- tty_wakeup(tty);
-}
-
-
-static void mxser_close_port(struct tty_port *port)
-{
- struct mxser_port *info = container_of(port, struct mxser_port, port);
- unsigned long timeout;
- /*
- * At this point we stop accepting input. To do this, we
- * disable the receive line status interrupts, and tell the
- * interrupt driver to stop checking the data ready bit in the
- * line status register.
- */
- info->IER &= ~UART_IER_RLSI;
- if (info->board->chip_flag)
- info->IER &= ~MOXA_MUST_RECV_ISR;
-
- outb(info->IER, info->ioaddr + UART_IER);
- /*
- * Before we drop DTR, make sure the UART transmitter
- * has completely drained; this is especially
- * important if there is a transmit FIFO!
- */
- timeout = jiffies + HZ;
- while (!(inb(info->ioaddr + UART_LSR) & UART_LSR_TEMT)) {
- schedule_timeout_interruptible(5);
- if (time_after(jiffies, timeout))
- break;
- }
-}
-
-/*
- * This routine is called when the serial port gets closed. First, we
- * wait for the last remaining data to be sent. Then, we unlink its
- * async structure from the interrupt chain if necessary, and we free
- * that IRQ if nothing is left in the chain.
- */
-static void mxser_close(struct tty_struct *tty, struct file *filp)
-{
- struct mxser_port *info = tty->driver_data;
- struct tty_port *port = &info->port;
-
- if (tty->index == MXSER_PORTS || info == NULL)
- return;
- if (tty_port_close_start(port, tty, filp) == 0)
- return;
- mutex_lock(&port->mutex);
- mxser_close_port(port);
- mxser_flush_buffer(tty);
- mxser_shutdown_port(port);
- clear_bit(ASYNCB_INITIALIZED, &port->flags);
- mutex_unlock(&port->mutex);
- /* Right now the tty_port set is done outside of the close_end helper
- as we don't yet have everyone using refcounts */
- tty_port_close_end(port, tty);
- tty_port_tty_set(port, NULL);
-}
-
-static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
- int c, total = 0;
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- if (!info->port.xmit_buf)
- return 0;
-
- while (1) {
- c = min_t(int, count, min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - info->xmit_head));
- if (c <= 0)
- break;
-
- memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
- spin_lock_irqsave(&info->slock, flags);
- info->xmit_head = (info->xmit_head + c) &
- (SERIAL_XMIT_SIZE - 1);
- info->xmit_cnt += c;
- spin_unlock_irqrestore(&info->slock, flags);
-
- buf += c;
- count -= c;
- total += c;
- }
-
- if (info->xmit_cnt && !tty->stopped) {
- if (!tty->hw_stopped ||
- (info->type == PORT_16550A) ||
- (info->board->chip_flag)) {
- spin_lock_irqsave(&info->slock, flags);
- outb(info->IER & ~UART_IER_THRI, info->ioaddr +
- UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
- spin_unlock_irqrestore(&info->slock, flags);
- }
- }
- return total;
-}
-
-static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- if (!info->port.xmit_buf)
- return 0;
-
- if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
- return 0;
-
- spin_lock_irqsave(&info->slock, flags);
- info->port.xmit_buf[info->xmit_head++] = ch;
- info->xmit_head &= SERIAL_XMIT_SIZE - 1;
- info->xmit_cnt++;
- spin_unlock_irqrestore(&info->slock, flags);
- if (!tty->stopped) {
- if (!tty->hw_stopped ||
- (info->type == PORT_16550A) ||
- info->board->chip_flag) {
- spin_lock_irqsave(&info->slock, flags);
- outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
- spin_unlock_irqrestore(&info->slock, flags);
- }
- }
- return 1;
-}
-
-
-static void mxser_flush_chars(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- if (info->xmit_cnt <= 0 || tty->stopped || !info->port.xmit_buf ||
- (tty->hw_stopped && info->type != PORT_16550A &&
- !info->board->chip_flag))
- return;
-
- spin_lock_irqsave(&info->slock, flags);
-
- outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
-
- spin_unlock_irqrestore(&info->slock, flags);
-}
-
-static int mxser_write_room(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
- int ret;
-
- ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
- return ret < 0 ? 0 : ret;
-}
-
-static int mxser_chars_in_buffer(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
- return info->xmit_cnt;
-}
-
-/*
- * ------------------------------------------------------------
- * friends of mxser_ioctl()
- * ------------------------------------------------------------
- */
-static int mxser_get_serial_info(struct tty_struct *tty,
- struct serial_struct __user *retinfo)
-{
- struct mxser_port *info = tty->driver_data;
- struct serial_struct tmp = {
- .type = info->type,
- .line = tty->index,
- .port = info->ioaddr,
- .irq = info->board->irq,
- .flags = info->port.flags,
- .baud_base = info->baud_base,
- .close_delay = info->port.close_delay,
- .closing_wait = info->port.closing_wait,
- .custom_divisor = info->custom_divisor,
- .hub6 = 0
- };
- if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
- return -EFAULT;
- return 0;
-}
-
-static int mxser_set_serial_info(struct tty_struct *tty,
- struct serial_struct __user *new_info)
-{
- struct mxser_port *info = tty->driver_data;
- struct tty_port *port = &info->port;
- struct serial_struct new_serial;
- speed_t baud;
- unsigned long sl_flags;
- unsigned int flags;
- int retval = 0;
-
- if (!new_info || !info->ioaddr)
- return -ENODEV;
- if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
- return -EFAULT;
-
- if (new_serial.irq != info->board->irq ||
- new_serial.port != info->ioaddr)
- return -EINVAL;
-
- flags = port->flags & ASYNC_SPD_MASK;
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((new_serial.baud_base != info->baud_base) ||
- (new_serial.close_delay != info->port.close_delay) ||
- ((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK)))
- return -EPERM;
- info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
- (new_serial.flags & ASYNC_USR_MASK));
- } else {
- /*
- * OK, past this point, all the error checking has been done.
- * At this point, we start making changes.....
- */
- port->flags = ((port->flags & ~ASYNC_FLAGS) |
- (new_serial.flags & ASYNC_FLAGS));
- port->close_delay = new_serial.close_delay * HZ / 100;
- port->closing_wait = new_serial.closing_wait * HZ / 100;
- tty->low_latency = (port->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
- (new_serial.baud_base != info->baud_base ||
- new_serial.custom_divisor !=
- info->custom_divisor)) {
- if (new_serial.custom_divisor == 0)
- return -EINVAL;
- baud = new_serial.baud_base / new_serial.custom_divisor;
- tty_encode_baud_rate(tty, baud, baud);
- }
- }
-
- info->type = new_serial.type;
-
- process_txrx_fifo(info);
-
- if (test_bit(ASYNCB_INITIALIZED, &port->flags)) {
- if (flags != (port->flags & ASYNC_SPD_MASK)) {
- spin_lock_irqsave(&info->slock, sl_flags);
- mxser_change_speed(tty, NULL);
- spin_unlock_irqrestore(&info->slock, sl_flags);
- }
- } else {
- retval = mxser_activate(port, tty);
- if (retval == 0)
- set_bit(ASYNCB_INITIALIZED, &port->flags);
- }
- return retval;
-}
-
-/*
- * mxser_get_lsr_info - get line status register info
- *
- * Purpose: Let user call ioctl() to get info when the UART physically
- * is emptied. On bus types like RS485, the transmitter must
- * release the bus after transmitting. This must be done when
- * the transmit shift register is empty, not be done when the
- * transmit holding register is empty. This functionality
- * allows an RS485 driver to be written in user space.
- */
-static int mxser_get_lsr_info(struct mxser_port *info,
- unsigned int __user *value)
-{
- unsigned char status;
- unsigned int result;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
- status = inb(info->ioaddr + UART_LSR);
- spin_unlock_irqrestore(&info->slock, flags);
- result = ((status & UART_LSR_TEMT) ? TIOCSER_TEMT : 0);
- return put_user(result, value);
-}
-
-static int mxser_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned char control, status;
- unsigned long flags;
-
-
- if (tty->index == MXSER_PORTS)
- return -ENOIOCTLCMD;
- if (test_bit(TTY_IO_ERROR, &tty->flags))
- return -EIO;
-
- control = info->MCR;
-
- spin_lock_irqsave(&info->slock, flags);
- status = inb(info->ioaddr + UART_MSR);
- if (status & UART_MSR_ANY_DELTA)
- mxser_check_modem_status(tty, info, status);
- spin_unlock_irqrestore(&info->slock, flags);
- return ((control & UART_MCR_RTS) ? TIOCM_RTS : 0) |
- ((control & UART_MCR_DTR) ? TIOCM_DTR : 0) |
- ((status & UART_MSR_DCD) ? TIOCM_CAR : 0) |
- ((status & UART_MSR_RI) ? TIOCM_RNG : 0) |
- ((status & UART_MSR_DSR) ? TIOCM_DSR : 0) |
- ((status & UART_MSR_CTS) ? TIOCM_CTS : 0);
-}
-
-static int mxser_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
-
- if (tty->index == MXSER_PORTS)
- return -ENOIOCTLCMD;
- if (test_bit(TTY_IO_ERROR, &tty->flags))
- return -EIO;
-
- spin_lock_irqsave(&info->slock, flags);
-
- if (set & TIOCM_RTS)
- info->MCR |= UART_MCR_RTS;
- if (set & TIOCM_DTR)
- info->MCR |= UART_MCR_DTR;
-
- if (clear & TIOCM_RTS)
- info->MCR &= ~UART_MCR_RTS;
- if (clear & TIOCM_DTR)
- info->MCR &= ~UART_MCR_DTR;
-
- outb(info->MCR, info->ioaddr + UART_MCR);
- spin_unlock_irqrestore(&info->slock, flags);
- return 0;
-}
-
-static int __init mxser_program_mode(int port)
-{
- int id, i, j, n;
-
- outb(0, port);
- outb(0, port);
- outb(0, port);
- (void)inb(port);
- (void)inb(port);
- outb(0, port);
- (void)inb(port);
-
- id = inb(port + 1) & 0x1F;
- if ((id != C168_ASIC_ID) &&
- (id != C104_ASIC_ID) &&
- (id != C102_ASIC_ID) &&
- (id != CI132_ASIC_ID) &&
- (id != CI134_ASIC_ID) &&
- (id != CI104J_ASIC_ID))
- return -1;
- for (i = 0, j = 0; i < 4; i++) {
- n = inb(port + 2);
- if (n == 'M') {
- j = 1;
- } else if ((j == 1) && (n == 1)) {
- j = 2;
- break;
- } else
- j = 0;
- }
- if (j != 2)
- id = -2;
- return id;
-}
-
-static void __init mxser_normal_mode(int port)
-{
- int i, n;
-
- outb(0xA5, port + 1);
- outb(0x80, port + 3);
- outb(12, port + 0); /* 9600 bps */
- outb(0, port + 1);
- outb(0x03, port + 3); /* 8 data bits */
- outb(0x13, port + 4); /* loop back mode */
- for (i = 0; i < 16; i++) {
- n = inb(port + 5);
- if ((n & 0x61) == 0x60)
- break;
- if ((n & 1) == 1)
- (void)inb(port);
- }
- outb(0x00, port + 4);
-}
-
-#define CHIP_SK 0x01 /* Serial Data Clock in Eprom */
-#define CHIP_DO 0x02 /* Serial Data Output in Eprom */
-#define CHIP_CS 0x04 /* Serial Chip Select in Eprom */
-#define CHIP_DI 0x08 /* Serial Data Input in Eprom */
-#define EN_CCMD 0x000 /* Chip's command register */
-#define EN0_RSARLO 0x008 /* Remote start address reg 0 */
-#define EN0_RSARHI 0x009 /* Remote start address reg 1 */
-#define EN0_RCNTLO 0x00A /* Remote byte count reg WR */
-#define EN0_RCNTHI 0x00B /* Remote byte count reg WR */
-#define EN0_DCFG 0x00E /* Data configuration reg WR */
-#define EN0_PORT 0x010 /* Rcv missed frame error counter RD */
-#define ENC_PAGE0 0x000 /* Select page 0 of chip registers */
-#define ENC_PAGE3 0x0C0 /* Select page 3 of chip registers */
-static int __init mxser_read_register(int port, unsigned short *regs)
-{
- int i, k, value, id;
- unsigned int j;
-
- id = mxser_program_mode(port);
- if (id < 0)
- return id;
- for (i = 0; i < 14; i++) {
- k = (i & 0x3F) | 0x180;
- for (j = 0x100; j > 0; j >>= 1) {
- outb(CHIP_CS, port);
- if (k & j) {
- outb(CHIP_CS | CHIP_DO, port);
- outb(CHIP_CS | CHIP_DO | CHIP_SK, port); /* A? bit of read */
- } else {
- outb(CHIP_CS, port);
- outb(CHIP_CS | CHIP_SK, port); /* A? bit of read */
- }
- }
- (void)inb(port);
- value = 0;
- for (k = 0, j = 0x8000; k < 16; k++, j >>= 1) {
- outb(CHIP_CS, port);
- outb(CHIP_CS | CHIP_SK, port);
- if (inb(port) & CHIP_DI)
- value |= j;
- }
- regs[i] = value;
- outb(0, port);
- }
- mxser_normal_mode(port);
- return id;
-}
-
-static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
-{
- struct mxser_port *ip;
- struct tty_port *port;
- struct tty_struct *tty;
- int result, status;
- unsigned int i, j;
- int ret = 0;
-
- switch (cmd) {
- case MOXA_GET_MAJOR:
- if (printk_ratelimit())
- printk(KERN_WARNING "mxser: '%s' uses deprecated ioctl "
- "%x (GET_MAJOR), fix your userspace\n",
- current->comm, cmd);
- return put_user(ttymajor, (int __user *)argp);
-
- case MOXA_CHKPORTENABLE:
- result = 0;
- for (i = 0; i < MXSER_BOARDS; i++)
- for (j = 0; j < MXSER_PORTS_PER_BOARD; j++)
- if (mxser_boards[i].ports[j].ioaddr)
- result |= (1 << i);
- return put_user(result, (unsigned long __user *)argp);
- case MOXA_GETDATACOUNT:
- /* The receive side is locked by port->slock but it isn't
- clear that an exact snapshot is worth copying here */
- if (copy_to_user(argp, &mxvar_log, sizeof(mxvar_log)))
- ret = -EFAULT;
- return ret;
- case MOXA_GETMSTATUS: {
- struct mxser_mstatus ms, __user *msu = argp;
- for (i = 0; i < MXSER_BOARDS; i++)
- for (j = 0; j < MXSER_PORTS_PER_BOARD; j++) {
- ip = &mxser_boards[i].ports[j];
- port = &ip->port;
- memset(&ms, 0, sizeof(ms));
-
- mutex_lock(&port->mutex);
- if (!ip->ioaddr)
- goto copy;
-
- tty = tty_port_tty_get(port);
-
- if (!tty || !tty->termios)
- ms.cflag = ip->normal_termios.c_cflag;
- else
- ms.cflag = tty->termios->c_cflag;
- tty_kref_put(tty);
- spin_lock_irq(&ip->slock);
- status = inb(ip->ioaddr + UART_MSR);
- spin_unlock_irq(&ip->slock);
- if (status & UART_MSR_DCD)
- ms.dcd = 1;
- if (status & UART_MSR_DSR)
- ms.dsr = 1;
- if (status & UART_MSR_CTS)
- ms.cts = 1;
- copy:
- mutex_unlock(&port->mutex);
- if (copy_to_user(msu, &ms, sizeof(ms)))
- return -EFAULT;
- msu++;
- }
- return 0;
- }
- case MOXA_ASPP_MON_EXT: {
- struct mxser_mon_ext *me; /* it's 2k, stack unfriendly */
- unsigned int cflag, iflag, p;
- u8 opmode;
-
- me = kzalloc(sizeof(*me), GFP_KERNEL);
- if (!me)
- return -ENOMEM;
-
- for (i = 0, p = 0; i < MXSER_BOARDS; i++) {
- for (j = 0; j < MXSER_PORTS_PER_BOARD; j++, p++) {
- if (p >= ARRAY_SIZE(me->rx_cnt)) {
- i = MXSER_BOARDS;
- break;
- }
- ip = &mxser_boards[i].ports[j];
- port = &ip->port;
-
- mutex_lock(&port->mutex);
- if (!ip->ioaddr) {
- mutex_unlock(&port->mutex);
- continue;
- }
-
- spin_lock_irq(&ip->slock);
- status = mxser_get_msr(ip->ioaddr, 0, p);
-
- if (status & UART_MSR_TERI)
- ip->icount.rng++;
- if (status & UART_MSR_DDSR)
- ip->icount.dsr++;
- if (status & UART_MSR_DDCD)
- ip->icount.dcd++;
- if (status & UART_MSR_DCTS)
- ip->icount.cts++;
-
- ip->mon_data.modem_status = status;
- me->rx_cnt[p] = ip->mon_data.rxcnt;
- me->tx_cnt[p] = ip->mon_data.txcnt;
- me->up_rxcnt[p] = ip->mon_data.up_rxcnt;
- me->up_txcnt[p] = ip->mon_data.up_txcnt;
- me->modem_status[p] =
- ip->mon_data.modem_status;
- spin_unlock_irq(&ip->slock);
-
- tty = tty_port_tty_get(&ip->port);
-
- if (!tty || !tty->termios) {
- cflag = ip->normal_termios.c_cflag;
- iflag = ip->normal_termios.c_iflag;
- me->baudrate[p] = tty_termios_baud_rate(&ip->normal_termios);
- } else {
- cflag = tty->termios->c_cflag;
- iflag = tty->termios->c_iflag;
- me->baudrate[p] = tty_get_baud_rate(tty);
- }
- tty_kref_put(tty);
-
- me->databits[p] = cflag & CSIZE;
- me->stopbits[p] = cflag & CSTOPB;
- me->parity[p] = cflag & (PARENB | PARODD |
- CMSPAR);
-
- if (cflag & CRTSCTS)
- me->flowctrl[p] |= 0x03;
-
- if (iflag & (IXON | IXOFF))
- me->flowctrl[p] |= 0x0C;
-
- if (ip->type == PORT_16550A)
- me->fifo[p] = 1;
-
- opmode = inb(ip->opmode_ioaddr)>>((p % 4) * 2);
- opmode &= OP_MODE_MASK;
- me->iftype[p] = opmode;
- mutex_unlock(&port->mutex);
- }
- }
- if (copy_to_user(argp, me, sizeof(*me)))
- ret = -EFAULT;
- kfree(me);
- return ret;
- }
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static int mxser_cflags_changed(struct mxser_port *info, unsigned long arg,
- struct async_icount *cprev)
-{
- struct async_icount cnow;
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&info->slock, flags);
- cnow = info->icount; /* atomic copy */
- spin_unlock_irqrestore(&info->slock, flags);
-
- ret = ((arg & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
- ((arg & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) ||
- ((arg & TIOCM_CD) && (cnow.dcd != cprev->dcd)) ||
- ((arg & TIOCM_CTS) && (cnow.cts != cprev->cts));
-
- *cprev = cnow;
-
- return ret;
-}
-
-static int mxser_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct mxser_port *info = tty->driver_data;
- struct tty_port *port = &info->port;
- struct async_icount cnow;
- unsigned long flags;
- void __user *argp = (void __user *)arg;
- int retval;
-
- if (tty->index == MXSER_PORTS)
- return mxser_ioctl_special(cmd, argp);
-
- if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) {
- int p;
- unsigned long opmode;
- static unsigned char ModeMask[] = { 0xfc, 0xf3, 0xcf, 0x3f };
- int shiftbit;
- unsigned char val, mask;
-
- p = tty->index % 4;
- if (cmd == MOXA_SET_OP_MODE) {
- if (get_user(opmode, (int __user *) argp))
- return -EFAULT;
- if (opmode != RS232_MODE &&
- opmode != RS485_2WIRE_MODE &&
- opmode != RS422_MODE &&
- opmode != RS485_4WIRE_MODE)
- return -EFAULT;
- mask = ModeMask[p];
- shiftbit = p * 2;
- spin_lock_irq(&info->slock);
- val = inb(info->opmode_ioaddr);
- val &= mask;
- val |= (opmode << shiftbit);
- outb(val, info->opmode_ioaddr);
- spin_unlock_irq(&info->slock);
- } else {
- shiftbit = p * 2;
- spin_lock_irq(&info->slock);
- opmode = inb(info->opmode_ioaddr) >> shiftbit;
- spin_unlock_irq(&info->slock);
- opmode &= OP_MODE_MASK;
- if (put_user(opmode, (int __user *)argp))
- return -EFAULT;
- }
- return 0;
- }
-
- if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT &&
- test_bit(TTY_IO_ERROR, &tty->flags))
- return -EIO;
-
- switch (cmd) {
- case TIOCGSERIAL:
- mutex_lock(&port->mutex);
- retval = mxser_get_serial_info(tty, argp);
- mutex_unlock(&port->mutex);
- return retval;
- case TIOCSSERIAL:
- mutex_lock(&port->mutex);
- retval = mxser_set_serial_info(tty, argp);
- mutex_unlock(&port->mutex);
- return retval;
- case TIOCSERGETLSR: /* Get line status register */
- return mxser_get_lsr_info(info, argp);
- /*
- * Wait for any of the 4 modem inputs (DCD,RI,DSR,CTS) to change
- * - mask passed in arg for lines of interest
- * (use |'ed TIOCM_RNG/DSR/CD/CTS for masking)
- * Caller should use TIOCGICOUNT to see which one it was
- */
- case TIOCMIWAIT:
- spin_lock_irqsave(&info->slock, flags);
- cnow = info->icount; /* note the counters on entry */
- spin_unlock_irqrestore(&info->slock, flags);
-
- return wait_event_interruptible(info->port.delta_msr_wait,
- mxser_cflags_changed(info, arg, &cnow));
- case MOXA_HighSpeedOn:
- return put_user(info->baud_base != 115200 ? 1 : 0, (int __user *)argp);
- case MOXA_SDS_RSTICOUNTER:
- spin_lock_irq(&info->slock);
- info->mon_data.rxcnt = 0;
- info->mon_data.txcnt = 0;
- spin_unlock_irq(&info->slock);
- return 0;
-
- case MOXA_ASPP_OQUEUE:{
- int len, lsr;
-
- len = mxser_chars_in_buffer(tty);
- spin_lock_irq(&info->slock);
- lsr = inb(info->ioaddr + UART_LSR) & UART_LSR_THRE;
- spin_unlock_irq(&info->slock);
- len += (lsr ? 0 : 1);
-
- return put_user(len, (int __user *)argp);
- }
- case MOXA_ASPP_MON: {
- int mcr, status;
-
- spin_lock_irq(&info->slock);
- status = mxser_get_msr(info->ioaddr, 1, tty->index);
- mxser_check_modem_status(tty, info, status);
-
- mcr = inb(info->ioaddr + UART_MCR);
- spin_unlock_irq(&info->slock);
-
- if (mcr & MOXA_MUST_MCR_XON_FLAG)
- info->mon_data.hold_reason &= ~NPPI_NOTIFY_XOFFHOLD;
- else
- info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFHOLD;
-
- if (mcr & MOXA_MUST_MCR_TX_XON)
- info->mon_data.hold_reason &= ~NPPI_NOTIFY_XOFFXENT;
- else
- info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT;
-
- if (tty->hw_stopped)
- info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD;
- else
- info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD;
-
- if (copy_to_user(argp, &info->mon_data,
- sizeof(struct mxser_mon)))
- return -EFAULT;
-
- return 0;
- }
- case MOXA_ASPP_LSTATUS: {
- if (put_user(info->err_shadow, (unsigned char __user *)argp))
- return -EFAULT;
-
- info->err_shadow = 0;
- return 0;
- }
- case MOXA_SET_BAUD_METHOD: {
- int method;
-
- if (get_user(method, (int __user *)argp))
- return -EFAULT;
- mxser_set_baud_method[tty->index] = method;
- return put_user(method, (int __user *)argp);
- }
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
- /*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- * RI where only 0->1 is counted.
- */
-
-static int mxser_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-
-{
- struct mxser_port *info = tty->driver_data;
- struct async_icount cnow;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
- cnow = info->icount;
- spin_unlock_irqrestore(&info->slock, flags);
-
- icount->frame = cnow.frame;
- icount->brk = cnow.brk;
- icount->overrun = cnow.overrun;
- icount->buf_overrun = cnow.buf_overrun;
- icount->parity = cnow.parity;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- return 0;
-}
-
-static void mxser_stoprx(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
-
- info->ldisc_stop_rx = 1;
- if (I_IXOFF(tty)) {
- if (info->board->chip_flag) {
- info->IER &= ~MOXA_MUST_RECV_ISR;
- outb(info->IER, info->ioaddr + UART_IER);
- } else {
- info->x_char = STOP_CHAR(tty);
- outb(0, info->ioaddr + UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
- }
- }
-
- if (tty->termios->c_cflag & CRTSCTS) {
- info->MCR &= ~UART_MCR_RTS;
- outb(info->MCR, info->ioaddr + UART_MCR);
- }
-}
-
-/*
- * This routine is called by the upper-layer tty layer to signal that
- * incoming characters should be throttled.
- */
-static void mxser_throttle(struct tty_struct *tty)
-{
- mxser_stoprx(tty);
-}
-
-static void mxser_unthrottle(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
-
- /* startrx */
- info->ldisc_stop_rx = 0;
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else {
- if (info->board->chip_flag) {
- info->IER |= MOXA_MUST_RECV_ISR;
- outb(info->IER, info->ioaddr + UART_IER);
- } else {
- info->x_char = START_CHAR(tty);
- outb(0, info->ioaddr + UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
- }
- }
- }
-
- if (tty->termios->c_cflag & CRTSCTS) {
- info->MCR |= UART_MCR_RTS;
- outb(info->MCR, info->ioaddr + UART_MCR);
- }
-}
-
-/*
- * mxser_stop() and mxser_start()
- *
- * This routines are called before setting or resetting tty->stopped.
- * They enable or disable transmitter interrupts, as necessary.
- */
-static void mxser_stop(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
- if (info->IER & UART_IER_THRI) {
- info->IER &= ~UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
- }
- spin_unlock_irqrestore(&info->slock, flags);
-}
-
-static void mxser_start(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
- if (info->xmit_cnt && info->port.xmit_buf) {
- outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
- info->IER |= UART_IER_THRI;
- outb(info->IER, info->ioaddr + UART_IER);
- }
- spin_unlock_irqrestore(&info->slock, flags);
-}
-
-static void mxser_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
- mxser_change_speed(tty, old_termios);
- spin_unlock_irqrestore(&info->slock, flags);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- mxser_start(tty);
- }
-
- /* Handle sw stopped */
- if ((old_termios->c_iflag & IXON) &&
- !(tty->termios->c_iflag & IXON)) {
- tty->stopped = 0;
-
- if (info->board->chip_flag) {
- spin_lock_irqsave(&info->slock, flags);
- mxser_disable_must_rx_software_flow_control(
- info->ioaddr);
- spin_unlock_irqrestore(&info->slock, flags);
- }
-
- mxser_start(tty);
- }
-}
-
-/*
- * mxser_wait_until_sent() --- wait until the transmitter is empty
- */
-static void mxser_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long orig_jiffies, char_time;
- unsigned long flags;
- int lsr;
-
- if (info->type == PORT_UNKNOWN)
- return;
-
- if (info->xmit_fifo_size == 0)
- return; /* Just in case.... */
-
- orig_jiffies = jiffies;
- /*
- * Set the check interval to be 1/5 of the estimated time to
- * send a single character, and make it at least 1. The check
- * interval should also be less than the timeout.
- *
- * Note: we have to use pretty tight timings here to satisfy
- * the NIST-PCTS.
- */
- char_time = (info->timeout - HZ / 50) / info->xmit_fifo_size;
- char_time = char_time / 5;
- if (char_time == 0)
- char_time = 1;
- if (timeout && timeout < char_time)
- char_time = timeout;
- /*
- * If the transmitter hasn't cleared in twice the approximate
- * amount of time to send the entire FIFO, it probably won't
- * ever clear. This assumes the UART isn't doing flow
- * control, which is currently the case. Hence, if it ever
- * takes longer than info->timeout, this is probably due to a
- * UART bug of some kind. So, we clamp the timeout parameter at
- * 2*info->timeout.
- */
- if (!timeout || timeout > 2 * info->timeout)
- timeout = 2 * info->timeout;
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
- printk(KERN_DEBUG "In rs_wait_until_sent(%d) check=%lu...",
- timeout, char_time);
- printk("jiff=%lu...", jiffies);
-#endif
- spin_lock_irqsave(&info->slock, flags);
- while (!((lsr = inb(info->ioaddr + UART_LSR)) & UART_LSR_TEMT)) {
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
- printk("lsr = %d (jiff=%lu)...", lsr, jiffies);
-#endif
- spin_unlock_irqrestore(&info->slock, flags);
- schedule_timeout_interruptible(char_time);
- spin_lock_irqsave(&info->slock, flags);
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
- spin_unlock_irqrestore(&info->slock, flags);
- set_current_state(TASK_RUNNING);
-
-#ifdef SERIAL_DEBUG_RS_WAIT_UNTIL_SENT
- printk("lsr = %d (jiff=%lu)...done\n", lsr, jiffies);
-#endif
-}
-
-/*
- * This routine is called by tty_hangup() when a hangup is signaled.
- */
-static void mxser_hangup(struct tty_struct *tty)
-{
- struct mxser_port *info = tty->driver_data;
-
- mxser_flush_buffer(tty);
- tty_port_hangup(&info->port);
-}
-
-/*
- * mxser_rs_break() --- routine which turns the break handling on or off
- */
-static int mxser_rs_break(struct tty_struct *tty, int break_state)
-{
- struct mxser_port *info = tty->driver_data;
- unsigned long flags;
-
- spin_lock_irqsave(&info->slock, flags);
- if (break_state == -1)
- outb(inb(info->ioaddr + UART_LCR) | UART_LCR_SBC,
- info->ioaddr + UART_LCR);
- else
- outb(inb(info->ioaddr + UART_LCR) & ~UART_LCR_SBC,
- info->ioaddr + UART_LCR);
- spin_unlock_irqrestore(&info->slock, flags);
- return 0;
-}
-
-static void mxser_receive_chars(struct tty_struct *tty,
- struct mxser_port *port, int *status)
-{
- unsigned char ch, gdl;
- int ignored = 0;
- int cnt = 0;
- int recv_room;
- int max = 256;
-
- recv_room = tty->receive_room;
- if (recv_room == 0 && !port->ldisc_stop_rx)
- mxser_stoprx(tty);
- if (port->board->chip_flag != MOXA_OTHER_UART) {
-
- if (*status & UART_LSR_SPECIAL)
- goto intr_old;
- if (port->board->chip_flag == MOXA_MUST_MU860_HWID &&
- (*status & MOXA_MUST_LSR_RERR))
- goto intr_old;
- if (*status & MOXA_MUST_LSR_RERR)
- goto intr_old;
-
- gdl = inb(port->ioaddr + MOXA_MUST_GDL_REGISTER);
-
- if (port->board->chip_flag == MOXA_MUST_MU150_HWID)
- gdl &= MOXA_MUST_GDL_MASK;
- if (gdl >= recv_room) {
- if (!port->ldisc_stop_rx)
- mxser_stoprx(tty);
- }
- while (gdl--) {
- ch = inb(port->ioaddr + UART_RX);
- tty_insert_flip_char(tty, ch, 0);
- cnt++;
- }
- goto end_intr;
- }
-intr_old:
-
- do {
- if (max-- < 0)
- break;
-
- ch = inb(port->ioaddr + UART_RX);
- if (port->board->chip_flag && (*status & UART_LSR_OE))
- outb(0x23, port->ioaddr + UART_FCR);
- *status &= port->read_status_mask;
- if (*status & port->ignore_status_mask) {
- if (++ignored > 100)
- break;
- } else {
- char flag = 0;
- if (*status & UART_LSR_SPECIAL) {
- if (*status & UART_LSR_BI) {
- flag = TTY_BREAK;
- port->icount.brk++;
-
- if (port->port.flags & ASYNC_SAK)
- do_SAK(tty);
- } else if (*status & UART_LSR_PE) {
- flag = TTY_PARITY;
- port->icount.parity++;
- } else if (*status & UART_LSR_FE) {
- flag = TTY_FRAME;
- port->icount.frame++;
- } else if (*status & UART_LSR_OE) {
- flag = TTY_OVERRUN;
- port->icount.overrun++;
- } else
- flag = TTY_BREAK;
- }
- tty_insert_flip_char(tty, ch, flag);
- cnt++;
- if (cnt >= recv_room) {
- if (!port->ldisc_stop_rx)
- mxser_stoprx(tty);
- break;
- }
-
- }
-
- if (port->board->chip_flag)
- break;
-
- *status = inb(port->ioaddr + UART_LSR);
- } while (*status & UART_LSR_DR);
-
-end_intr:
- mxvar_log.rxcnt[tty->index] += cnt;
- port->mon_data.rxcnt += cnt;
- port->mon_data.up_rxcnt += cnt;
-
- /*
- * We are called from an interrupt context with &port->slock
- * being held. Drop it temporarily in order to prevent
- * recursive locking.
- */
- spin_unlock(&port->slock);
- tty_flip_buffer_push(tty);
- spin_lock(&port->slock);
-}
-
-static void mxser_transmit_chars(struct tty_struct *tty, struct mxser_port *port)
-{
- int count, cnt;
-
- if (port->x_char) {
- outb(port->x_char, port->ioaddr + UART_TX);
- port->x_char = 0;
- mxvar_log.txcnt[tty->index]++;
- port->mon_data.txcnt++;
- port->mon_data.up_txcnt++;
- port->icount.tx++;
- return;
- }
-
- if (port->port.xmit_buf == NULL)
- return;
-
- if (port->xmit_cnt <= 0 || tty->stopped ||
- (tty->hw_stopped &&
- (port->type != PORT_16550A) &&
- (!port->board->chip_flag))) {
- port->IER &= ~UART_IER_THRI;
- outb(port->IER, port->ioaddr + UART_IER);
- return;
- }
-
- cnt = port->xmit_cnt;
- count = port->xmit_fifo_size;
- do {
- outb(port->port.xmit_buf[port->xmit_tail++],
- port->ioaddr + UART_TX);
- port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1);
- if (--port->xmit_cnt <= 0)
- break;
- } while (--count > 0);
- mxvar_log.txcnt[tty->index] += (cnt - port->xmit_cnt);
-
- port->mon_data.txcnt += (cnt - port->xmit_cnt);
- port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
- port->icount.tx += (cnt - port->xmit_cnt);
-
- if (port->xmit_cnt < WAKEUP_CHARS)
- tty_wakeup(tty);
-
- if (port->xmit_cnt <= 0) {
- port->IER &= ~UART_IER_THRI;
- outb(port->IER, port->ioaddr + UART_IER);
- }
-}
-
-/*
- * This is the serial driver's generic interrupt routine
- */
-static irqreturn_t mxser_interrupt(int irq, void *dev_id)
-{
- int status, iir, i;
- struct mxser_board *brd = NULL;
- struct mxser_port *port;
- int max, irqbits, bits, msr;
- unsigned int int_cnt, pass_counter = 0;
- int handled = IRQ_NONE;
- struct tty_struct *tty;
-
- for (i = 0; i < MXSER_BOARDS; i++)
- if (dev_id == &mxser_boards[i]) {
- brd = dev_id;
- break;
- }
-
- if (i == MXSER_BOARDS)
- goto irq_stop;
- if (brd == NULL)
- goto irq_stop;
- max = brd->info->nports;
- while (pass_counter++ < MXSER_ISR_PASS_LIMIT) {
- irqbits = inb(brd->vector) & brd->vector_mask;
- if (irqbits == brd->vector_mask)
- break;
-
- handled = IRQ_HANDLED;
- for (i = 0, bits = 1; i < max; i++, irqbits |= bits, bits <<= 1) {
- if (irqbits == brd->vector_mask)
- break;
- if (bits & irqbits)
- continue;
- port = &brd->ports[i];
-
- int_cnt = 0;
- spin_lock(&port->slock);
- do {
- iir = inb(port->ioaddr + UART_IIR);
- if (iir & UART_IIR_NO_INT)
- break;
- iir &= MOXA_MUST_IIR_MASK;
- tty = tty_port_tty_get(&port->port);
- if (!tty ||
- (port->port.flags & ASYNC_CLOSING) ||
- !(port->port.flags &
- ASYNC_INITIALIZED)) {
- status = inb(port->ioaddr + UART_LSR);
- outb(0x27, port->ioaddr + UART_FCR);
- inb(port->ioaddr + UART_MSR);
- tty_kref_put(tty);
- break;
- }
-
- status = inb(port->ioaddr + UART_LSR);
-
- if (status & UART_LSR_PE)
- port->err_shadow |= NPPI_NOTIFY_PARITY;
- if (status & UART_LSR_FE)
- port->err_shadow |= NPPI_NOTIFY_FRAMING;
- if (status & UART_LSR_OE)
- port->err_shadow |=
- NPPI_NOTIFY_HW_OVERRUN;
- if (status & UART_LSR_BI)
- port->err_shadow |= NPPI_NOTIFY_BREAK;
-
- if (port->board->chip_flag) {
- if (iir == MOXA_MUST_IIR_GDA ||
- iir == MOXA_MUST_IIR_RDA ||
- iir == MOXA_MUST_IIR_RTO ||
- iir == MOXA_MUST_IIR_LSR)
- mxser_receive_chars(tty, port,
- &status);
-
- } else {
- status &= port->read_status_mask;
- if (status & UART_LSR_DR)
- mxser_receive_chars(tty, port,
- &status);
- }
- msr = inb(port->ioaddr + UART_MSR);
- if (msr & UART_MSR_ANY_DELTA)
- mxser_check_modem_status(tty, port, msr);
-
- if (port->board->chip_flag) {
- if (iir == 0x02 && (status &
- UART_LSR_THRE))
- mxser_transmit_chars(tty, port);
- } else {
- if (status & UART_LSR_THRE)
- mxser_transmit_chars(tty, port);
- }
- tty_kref_put(tty);
- } while (int_cnt++ < MXSER_ISR_PASS_LIMIT);
- spin_unlock(&port->slock);
- }
- }
-
-irq_stop:
- return handled;
-}
-
-static const struct tty_operations mxser_ops = {
- .open = mxser_open,
- .close = mxser_close,
- .write = mxser_write,
- .put_char = mxser_put_char,
- .flush_chars = mxser_flush_chars,
- .write_room = mxser_write_room,
- .chars_in_buffer = mxser_chars_in_buffer,
- .flush_buffer = mxser_flush_buffer,
- .ioctl = mxser_ioctl,
- .throttle = mxser_throttle,
- .unthrottle = mxser_unthrottle,
- .set_termios = mxser_set_termios,
- .stop = mxser_stop,
- .start = mxser_start,
- .hangup = mxser_hangup,
- .break_ctl = mxser_rs_break,
- .wait_until_sent = mxser_wait_until_sent,
- .tiocmget = mxser_tiocmget,
- .tiocmset = mxser_tiocmset,
- .get_icount = mxser_get_icount,
-};
-
-struct tty_port_operations mxser_port_ops = {
- .carrier_raised = mxser_carrier_raised,
- .dtr_rts = mxser_dtr_rts,
- .activate = mxser_activate,
- .shutdown = mxser_shutdown_port,
-};
-
-/*
- * The MOXA Smartio/Industio serial driver boot-time initialization code!
- */
-
-static void mxser_release_ISA_res(struct mxser_board *brd)
-{
- free_irq(brd->irq, brd);
- release_region(brd->ports[0].ioaddr, 8 * brd->info->nports);
- release_region(brd->vector, 1);
-}
-
-static int __devinit mxser_initbrd(struct mxser_board *brd,
- struct pci_dev *pdev)
-{
- struct mxser_port *info;
- unsigned int i;
- int retval;
-
- printk(KERN_INFO "mxser: max. baud rate = %d bps\n",
- brd->ports[0].max_baud);
-
- for (i = 0; i < brd->info->nports; i++) {
- info = &brd->ports[i];
- tty_port_init(&info->port);
- info->port.ops = &mxser_port_ops;
- info->board = brd;
- info->stop_rx = 0;
- info->ldisc_stop_rx = 0;
-
- /* Enhance mode enabled here */
- if (brd->chip_flag != MOXA_OTHER_UART)
- mxser_enable_must_enchance_mode(info->ioaddr);
-
- info->port.flags = ASYNC_SHARE_IRQ;
- info->type = brd->uart_type;
-
- process_txrx_fifo(info);
-
- info->custom_divisor = info->baud_base * 16;
- info->port.close_delay = 5 * HZ / 10;
- info->port.closing_wait = 30 * HZ;
- info->normal_termios = mxvar_sdriver->init_termios;
- memset(&info->mon_data, 0, sizeof(struct mxser_mon));
- info->err_shadow = 0;
- spin_lock_init(&info->slock);
-
- /* before set INT ISR, disable all int */
- outb(inb(info->ioaddr + UART_IER) & 0xf0,
- info->ioaddr + UART_IER);
- }
-
- retval = request_irq(brd->irq, mxser_interrupt, IRQF_SHARED, "mxser",
- brd);
- if (retval)
- printk(KERN_ERR "Board %s: Request irq failed, IRQ (%d) may "
- "conflict with another device.\n",
- brd->info->name, brd->irq);
-
- return retval;
-}
-
-static int __init mxser_get_ISA_conf(int cap, struct mxser_board *brd)
-{
- int id, i, bits;
- unsigned short regs[16], irq;
- unsigned char scratch, scratch2;
-
- brd->chip_flag = MOXA_OTHER_UART;
-
- id = mxser_read_register(cap, regs);
- switch (id) {
- case C168_ASIC_ID:
- brd->info = &mxser_cards[0];
- break;
- case C104_ASIC_ID:
- brd->info = &mxser_cards[1];
- break;
- case CI104J_ASIC_ID:
- brd->info = &mxser_cards[2];
- break;
- case C102_ASIC_ID:
- brd->info = &mxser_cards[5];
- break;
- case CI132_ASIC_ID:
- brd->info = &mxser_cards[6];
- break;
- case CI134_ASIC_ID:
- brd->info = &mxser_cards[7];
- break;
- default:
- return 0;
- }
-
- irq = 0;
- /* some ISA cards have 2 ports, but we want to see them as 4-port (why?)
- Flag-hack checks if configuration should be read as 2-port here. */
- if (brd->info->nports == 2 || (brd->info->flags & MXSER_HAS2)) {
- irq = regs[9] & 0xF000;
- irq = irq | (irq >> 4);
- if (irq != (regs[9] & 0xFF00))
- goto err_irqconflict;
- } else if (brd->info->nports == 4) {
- irq = regs[9] & 0xF000;
- irq = irq | (irq >> 4);
- irq = irq | (irq >> 8);
- if (irq != regs[9])
- goto err_irqconflict;
- } else if (brd->info->nports == 8) {
- irq = regs[9] & 0xF000;
- irq = irq | (irq >> 4);
- irq = irq | (irq >> 8);
- if ((irq != regs[9]) || (irq != regs[10]))
- goto err_irqconflict;
- }
-
- if (!irq) {
- printk(KERN_ERR "mxser: interrupt number unset\n");
- return -EIO;
- }
- brd->irq = ((int)(irq & 0xF000) >> 12);
- for (i = 0; i < 8; i++)
- brd->ports[i].ioaddr = (int) regs[i + 1] & 0xFFF8;
- if ((regs[12] & 0x80) == 0) {
- printk(KERN_ERR "mxser: invalid interrupt vector\n");
- return -EIO;
- }
- brd->vector = (int)regs[11]; /* interrupt vector */
- if (id == 1)
- brd->vector_mask = 0x00FF;
- else
- brd->vector_mask = 0x000F;
- for (i = 7, bits = 0x0100; i >= 0; i--, bits <<= 1) {
- if (regs[12] & bits) {
- brd->ports[i].baud_base = 921600;
- brd->ports[i].max_baud = 921600;
- } else {
- brd->ports[i].baud_base = 115200;
- brd->ports[i].max_baud = 115200;
- }
- }
- scratch2 = inb(cap + UART_LCR) & (~UART_LCR_DLAB);
- outb(scratch2 | UART_LCR_DLAB, cap + UART_LCR);
- outb(0, cap + UART_EFR); /* EFR is the same as FCR */
- outb(scratch2, cap + UART_LCR);
- outb(UART_FCR_ENABLE_FIFO, cap + UART_FCR);
- scratch = inb(cap + UART_IIR);
-
- if (scratch & 0xC0)
- brd->uart_type = PORT_16550A;
- else
- brd->uart_type = PORT_16450;
- if (!request_region(brd->ports[0].ioaddr, 8 * brd->info->nports,
- "mxser(IO)")) {
- printk(KERN_ERR "mxser: can't request ports I/O region: "
- "0x%.8lx-0x%.8lx\n",
- brd->ports[0].ioaddr, brd->ports[0].ioaddr +
- 8 * brd->info->nports - 1);
- return -EIO;
- }
- if (!request_region(brd->vector, 1, "mxser(vector)")) {
- release_region(brd->ports[0].ioaddr, 8 * brd->info->nports);
- printk(KERN_ERR "mxser: can't request interrupt vector region: "
- "0x%.8lx-0x%.8lx\n",
- brd->ports[0].ioaddr, brd->ports[0].ioaddr +
- 8 * brd->info->nports - 1);
- return -EIO;
- }
- return brd->info->nports;
-
-err_irqconflict:
- printk(KERN_ERR "mxser: invalid interrupt number\n");
- return -EIO;
-}
-
-static int __devinit mxser_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
-#ifdef CONFIG_PCI
- struct mxser_board *brd;
- unsigned int i, j;
- unsigned long ioaddress;
- int retval = -EINVAL;
-
- for (i = 0; i < MXSER_BOARDS; i++)
- if (mxser_boards[i].info == NULL)
- break;
-
- if (i >= MXSER_BOARDS) {
- dev_err(&pdev->dev, "too many boards found (maximum %d), board "
- "not configured\n", MXSER_BOARDS);
- goto err;
- }
-
- brd = &mxser_boards[i];
- brd->idx = i * MXSER_PORTS_PER_BOARD;
- dev_info(&pdev->dev, "found MOXA %s board (BusNo=%d, DevNo=%d)\n",
- mxser_cards[ent->driver_data].name,
- pdev->bus->number, PCI_SLOT(pdev->devfn));
-
- retval = pci_enable_device(pdev);
- if (retval) {
- dev_err(&pdev->dev, "PCI enable failed\n");
- goto err;
- }
-
- /* io address */
- ioaddress = pci_resource_start(pdev, 2);
- retval = pci_request_region(pdev, 2, "mxser(IO)");
- if (retval)
- goto err_dis;
-
- brd->info = &mxser_cards[ent->driver_data];
- for (i = 0; i < brd->info->nports; i++)
- brd->ports[i].ioaddr = ioaddress + 8 * i;
-
- /* vector */
- ioaddress = pci_resource_start(pdev, 3);
- retval = pci_request_region(pdev, 3, "mxser(vector)");
- if (retval)
- goto err_zero;
- brd->vector = ioaddress;
-
- /* irq */
- brd->irq = pdev->irq;
-
- brd->chip_flag = CheckIsMoxaMust(brd->ports[0].ioaddr);
- brd->uart_type = PORT_16550A;
- brd->vector_mask = 0;
-
- for (i = 0; i < brd->info->nports; i++) {
- for (j = 0; j < UART_INFO_NUM; j++) {
- if (Gpci_uart_info[j].type == brd->chip_flag) {
- brd->ports[i].max_baud =
- Gpci_uart_info[j].max_baud;
-
- /* exception....CP-102 */
- if (brd->info->flags & MXSER_HIGHBAUD)
- brd->ports[i].max_baud = 921600;
- break;
- }
- }
- }
-
- if (brd->chip_flag == MOXA_MUST_MU860_HWID) {
- for (i = 0; i < brd->info->nports; i++) {
- if (i < 4)
- brd->ports[i].opmode_ioaddr = ioaddress + 4;
- else
- brd->ports[i].opmode_ioaddr = ioaddress + 0x0c;
- }
- outb(0, ioaddress + 4); /* default set to RS232 mode */
- outb(0, ioaddress + 0x0c); /* default set to RS232 mode */
- }
-
- for (i = 0; i < brd->info->nports; i++) {
- brd->vector_mask |= (1 << i);
- brd->ports[i].baud_base = 921600;
- }
-
- /* mxser_initbrd will hook ISR. */
- retval = mxser_initbrd(brd, pdev);
- if (retval)
- goto err_rel3;
-
- for (i = 0; i < brd->info->nports; i++)
- tty_register_device(mxvar_sdriver, brd->idx + i, &pdev->dev);
-
- pci_set_drvdata(pdev, brd);
-
- return 0;
-err_rel3:
- pci_release_region(pdev, 3);
-err_zero:
- brd->info = NULL;
- pci_release_region(pdev, 2);
-err_dis:
- pci_disable_device(pdev);
-err:
- return retval;
-#else
- return -ENODEV;
-#endif
-}
-
-static void __devexit mxser_remove(struct pci_dev *pdev)
-{
-#ifdef CONFIG_PCI
- struct mxser_board *brd = pci_get_drvdata(pdev);
- unsigned int i;
-
- for (i = 0; i < brd->info->nports; i++)
- tty_unregister_device(mxvar_sdriver, brd->idx + i);
-
- free_irq(pdev->irq, brd);
- pci_release_region(pdev, 2);
- pci_release_region(pdev, 3);
- pci_disable_device(pdev);
- brd->info = NULL;
-#endif
-}
-
-static struct pci_driver mxser_driver = {
- .name = "mxser",
- .id_table = mxser_pcibrds,
- .probe = mxser_probe,
- .remove = __devexit_p(mxser_remove)
-};
-
-static int __init mxser_module_init(void)
-{
- struct mxser_board *brd;
- unsigned int b, i, m;
- int retval;
-
- mxvar_sdriver = alloc_tty_driver(MXSER_PORTS + 1);
- if (!mxvar_sdriver)
- return -ENOMEM;
-
- printk(KERN_INFO "MOXA Smartio/Industio family driver version %s\n",
- MXSER_VERSION);
-
- /* Initialize the tty_driver structure */
- mxvar_sdriver->owner = THIS_MODULE;
- mxvar_sdriver->magic = TTY_DRIVER_MAGIC;
- mxvar_sdriver->name = "ttyMI";
- mxvar_sdriver->major = ttymajor;
- mxvar_sdriver->minor_start = 0;
- mxvar_sdriver->num = MXSER_PORTS + 1;
- mxvar_sdriver->type = TTY_DRIVER_TYPE_SERIAL;
- mxvar_sdriver->subtype = SERIAL_TYPE_NORMAL;
- mxvar_sdriver->init_termios = tty_std_termios;
- mxvar_sdriver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
- mxvar_sdriver->flags = TTY_DRIVER_REAL_RAW|TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(mxvar_sdriver, &mxser_ops);
-
- retval = tty_register_driver(mxvar_sdriver);
- if (retval) {
- printk(KERN_ERR "Couldn't install MOXA Smartio/Industio family "
- "tty driver !\n");
- goto err_put;
- }
-
- /* Start finding ISA boards here */
- for (m = 0, b = 0; b < MXSER_BOARDS; b++) {
- if (!ioaddr[b])
- continue;
-
- brd = &mxser_boards[m];
- retval = mxser_get_ISA_conf(ioaddr[b], brd);
- if (retval <= 0) {
- brd->info = NULL;
- continue;
- }
-
- printk(KERN_INFO "mxser: found MOXA %s board (CAP=0x%lx)\n",
- brd->info->name, ioaddr[b]);
-
- /* mxser_initbrd will hook ISR. */
- if (mxser_initbrd(brd, NULL) < 0) {
- brd->info = NULL;
- continue;
- }
-
- brd->idx = m * MXSER_PORTS_PER_BOARD;
- for (i = 0; i < brd->info->nports; i++)
- tty_register_device(mxvar_sdriver, brd->idx + i, NULL);
-
- m++;
- }
-
- retval = pci_register_driver(&mxser_driver);
- if (retval) {
- printk(KERN_ERR "mxser: can't register pci driver\n");
- if (!m) {
- retval = -ENODEV;
- goto err_unr;
- } /* else: we have some ISA cards under control */
- }
-
- return 0;
-err_unr:
- tty_unregister_driver(mxvar_sdriver);
-err_put:
- put_tty_driver(mxvar_sdriver);
- return retval;
-}
-
-static void __exit mxser_module_exit(void)
-{
- unsigned int i, j;
-
- pci_unregister_driver(&mxser_driver);
-
- for (i = 0; i < MXSER_BOARDS; i++) /* ISA remains */
- if (mxser_boards[i].info != NULL)
- for (j = 0; j < mxser_boards[i].info->nports; j++)
- tty_unregister_device(mxvar_sdriver,
- mxser_boards[i].idx + j);
- tty_unregister_driver(mxvar_sdriver);
- put_tty_driver(mxvar_sdriver);
-
- for (i = 0; i < MXSER_BOARDS; i++)
- if (mxser_boards[i].info != NULL)
- mxser_release_ISA_res(&mxser_boards[i]);
-}
-
-module_init(mxser_module_init);
-module_exit(mxser_module_exit);
diff --git a/drivers/char/mxser.h b/drivers/char/mxser.h
deleted file mode 100644
index 41878a69203..00000000000
--- a/drivers/char/mxser.h
+++ /dev/null
@@ -1,150 +0,0 @@
-#ifndef _MXSER_H
-#define _MXSER_H
-
-/*
- * Semi-public control interfaces
- */
-
-/*
- * MOXA ioctls
- */
-
-#define MOXA 0x400
-#define MOXA_GETDATACOUNT (MOXA + 23)
-#define MOXA_DIAGNOSE (MOXA + 50)
-#define MOXA_CHKPORTENABLE (MOXA + 60)
-#define MOXA_HighSpeedOn (MOXA + 61)
-#define MOXA_GET_MAJOR (MOXA + 63)
-#define MOXA_GETMSTATUS (MOXA + 65)
-#define MOXA_SET_OP_MODE (MOXA + 66)
-#define MOXA_GET_OP_MODE (MOXA + 67)
-
-#define RS232_MODE 0
-#define RS485_2WIRE_MODE 1
-#define RS422_MODE 2
-#define RS485_4WIRE_MODE 3
-#define OP_MODE_MASK 3
-
-#define MOXA_SDS_RSTICOUNTER (MOXA + 69)
-#define MOXA_ASPP_OQUEUE (MOXA + 70)
-#define MOXA_ASPP_MON (MOXA + 73)
-#define MOXA_ASPP_LSTATUS (MOXA + 74)
-#define MOXA_ASPP_MON_EXT (MOXA + 75)
-#define MOXA_SET_BAUD_METHOD (MOXA + 76)
-
-/* --------------------------------------------------- */
-
-#define NPPI_NOTIFY_PARITY 0x01
-#define NPPI_NOTIFY_FRAMING 0x02
-#define NPPI_NOTIFY_HW_OVERRUN 0x04
-#define NPPI_NOTIFY_SW_OVERRUN 0x08
-#define NPPI_NOTIFY_BREAK 0x10
-
-#define NPPI_NOTIFY_CTSHOLD 0x01 /* Tx hold by CTS low */
-#define NPPI_NOTIFY_DSRHOLD 0x02 /* Tx hold by DSR low */
-#define NPPI_NOTIFY_XOFFHOLD 0x08 /* Tx hold by Xoff received */
-#define NPPI_NOTIFY_XOFFXENT 0x10 /* Xoff Sent */
-
-/* follow just for Moxa Must chip define. */
-/* */
-/* when LCR register (offset 0x03) write following value, */
-/* the Must chip will enter enchance mode. And write value */
-/* on EFR (offset 0x02) bit 6,7 to change bank. */
-#define MOXA_MUST_ENTER_ENCHANCE 0xBF
-
-/* when enhance mode enable, access on general bank register */
-#define MOXA_MUST_GDL_REGISTER 0x07
-#define MOXA_MUST_GDL_MASK 0x7F
-#define MOXA_MUST_GDL_HAS_BAD_DATA 0x80
-
-#define MOXA_MUST_LSR_RERR 0x80 /* error in receive FIFO */
-/* enchance register bank select and enchance mode setting register */
-/* when LCR register equal to 0xBF */
-#define MOXA_MUST_EFR_REGISTER 0x02
-/* enchance mode enable */
-#define MOXA_MUST_EFR_EFRB_ENABLE 0x10
-/* enchance reister bank set 0, 1, 2 */
-#define MOXA_MUST_EFR_BANK0 0x00
-#define MOXA_MUST_EFR_BANK1 0x40
-#define MOXA_MUST_EFR_BANK2 0x80
-#define MOXA_MUST_EFR_BANK3 0xC0
-#define MOXA_MUST_EFR_BANK_MASK 0xC0
-
-/* set XON1 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XON1_REGISTER 0x04
-
-/* set XON2 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XON2_REGISTER 0x05
-
-/* set XOFF1 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XOFF1_REGISTER 0x06
-
-/* set XOFF2 value register, when LCR=0xBF and change to bank0 */
-#define MOXA_MUST_XOFF2_REGISTER 0x07
-
-#define MOXA_MUST_RBRTL_REGISTER 0x04
-#define MOXA_MUST_RBRTH_REGISTER 0x05
-#define MOXA_MUST_RBRTI_REGISTER 0x06
-#define MOXA_MUST_THRTL_REGISTER 0x07
-#define MOXA_MUST_ENUM_REGISTER 0x04
-#define MOXA_MUST_HWID_REGISTER 0x05
-#define MOXA_MUST_ECR_REGISTER 0x06
-#define MOXA_MUST_CSR_REGISTER 0x07
-
-/* good data mode enable */
-#define MOXA_MUST_FCR_GDA_MODE_ENABLE 0x20
-/* only good data put into RxFIFO */
-#define MOXA_MUST_FCR_GDA_ONLY_ENABLE 0x10
-
-/* enable CTS interrupt */
-#define MOXA_MUST_IER_ECTSI 0x80
-/* enable RTS interrupt */
-#define MOXA_MUST_IER_ERTSI 0x40
-/* enable Xon/Xoff interrupt */
-#define MOXA_MUST_IER_XINT 0x20
-/* enable GDA interrupt */
-#define MOXA_MUST_IER_EGDAI 0x10
-
-#define MOXA_MUST_RECV_ISR (UART_IER_RDI | MOXA_MUST_IER_EGDAI)
-
-/* GDA interrupt pending */
-#define MOXA_MUST_IIR_GDA 0x1C
-#define MOXA_MUST_IIR_RDA 0x04
-#define MOXA_MUST_IIR_RTO 0x0C
-#define MOXA_MUST_IIR_LSR 0x06
-
-/* recieved Xon/Xoff or specical interrupt pending */
-#define MOXA_MUST_IIR_XSC 0x10
-
-/* RTS/CTS change state interrupt pending */
-#define MOXA_MUST_IIR_RTSCTS 0x20
-#define MOXA_MUST_IIR_MASK 0x3E
-
-#define MOXA_MUST_MCR_XON_FLAG 0x40
-#define MOXA_MUST_MCR_XON_ANY 0x80
-#define MOXA_MUST_MCR_TX_XON 0x08
-
-/* software flow control on chip mask value */
-#define MOXA_MUST_EFR_SF_MASK 0x0F
-/* send Xon1/Xoff1 */
-#define MOXA_MUST_EFR_SF_TX1 0x08
-/* send Xon2/Xoff2 */
-#define MOXA_MUST_EFR_SF_TX2 0x04
-/* send Xon1,Xon2/Xoff1,Xoff2 */
-#define MOXA_MUST_EFR_SF_TX12 0x0C
-/* don't send Xon/Xoff */
-#define MOXA_MUST_EFR_SF_TX_NO 0x00
-/* Tx software flow control mask */
-#define MOXA_MUST_EFR_SF_TX_MASK 0x0C
-/* don't receive Xon/Xoff */
-#define MOXA_MUST_EFR_SF_RX_NO 0x00
-/* receive Xon1/Xoff1 */
-#define MOXA_MUST_EFR_SF_RX1 0x02
-/* receive Xon2/Xoff2 */
-#define MOXA_MUST_EFR_SF_RX2 0x01
-/* receive Xon1,Xon2/Xoff1,Xoff2 */
-#define MOXA_MUST_EFR_SF_RX12 0x03
-/* Rx software flow control mask */
-#define MOXA_MUST_EFR_SF_RX_MASK 0x03
-
-#endif
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
deleted file mode 100644
index 294d03e8c61..00000000000
--- a/drivers/char/nozomi.c
+++ /dev/null
@@ -1,1993 +0,0 @@
-/*
- * nozomi.c -- HSDPA driver Broadband Wireless Data Card - Globe Trotter
- *
- * Written by: Ulf Jakobsson,
- * Jan Ã…kerfeldt,
- * Stefan Thomasson,
- *
- * Maintained by: Paul Hardwick (p.hardwick@option.com)
- *
- * Patches:
- * Locking code changes for Vodafone by Sphere Systems Ltd,
- * Andrew Bird (ajb@spheresystems.co.uk )
- * & Phil Sanderson
- *
- * Source has been ported from an implementation made by Filip Aben @ Option
- *
- * --------------------------------------------------------------------------
- *
- * Copyright (c) 2005,2006 Option Wireless Sweden AB
- * Copyright (c) 2006 Sphere Systems Ltd
- * Copyright (c) 2006 Option Wireless n/v
- * All rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * --------------------------------------------------------------------------
- */
-
-/* Enable this to have a lot of debug printouts */
-#define DEBUG
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/interrupt.h>
-#include <linux/kmod.h>
-#include <linux/init.h>
-#include <linux/kfifo.h>
-#include <linux/uaccess.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-
-#include <linux/delay.h>
-
-
-#define VERSION_STRING DRIVER_DESC " 2.1d (build date: " \
- __DATE__ " " __TIME__ ")"
-
-/* Macros definitions */
-
-/* Default debug printout level */
-#define NOZOMI_DEBUG_LEVEL 0x00
-
-#define P_BUF_SIZE 128
-#define NFO(_err_flag_, args...) \
-do { \
- char tmp[P_BUF_SIZE]; \
- snprintf(tmp, sizeof(tmp), ##args); \
- printk(_err_flag_ "[%d] %s(): %s\n", __LINE__, \
- __func__, tmp); \
-} while (0)
-
-#define DBG1(args...) D_(0x01, ##args)
-#define DBG2(args...) D_(0x02, ##args)
-#define DBG3(args...) D_(0x04, ##args)
-#define DBG4(args...) D_(0x08, ##args)
-#define DBG5(args...) D_(0x10, ##args)
-#define DBG6(args...) D_(0x20, ##args)
-#define DBG7(args...) D_(0x40, ##args)
-#define DBG8(args...) D_(0x80, ##args)
-
-#ifdef DEBUG
-/* Do we need this settable at runtime? */
-static int debug = NOZOMI_DEBUG_LEVEL;
-
-#define D(lvl, args...) do \
- {if (lvl & debug) NFO(KERN_DEBUG, ##args); } \
- while (0)
-#define D_(lvl, args...) D(lvl, ##args)
-
-/* These printouts are always printed */
-
-#else
-static int debug;
-#define D_(lvl, args...)
-#endif
-
-/* TODO: rewrite to optimize macros... */
-
-#define TMP_BUF_MAX 256
-
-#define DUMP(buf__,len__) \
- do { \
- char tbuf[TMP_BUF_MAX] = {0};\
- if (len__ > 1) {\
- snprintf(tbuf, len__ > TMP_BUF_MAX ? TMP_BUF_MAX : len__, "%s", buf__);\
- if (tbuf[len__-2] == '\r') {\
- tbuf[len__-2] = 'r';\
- } \
- DBG1("SENDING: '%s' (%d+n)", tbuf, len__);\
- } else {\
- DBG1("SENDING: '%s' (%d)", tbuf, len__);\
- } \
-} while (0)
-
-/* Defines */
-#define NOZOMI_NAME "nozomi"
-#define NOZOMI_NAME_TTY "nozomi_tty"
-#define DRIVER_DESC "Nozomi driver"
-
-#define NTTY_TTY_MAXMINORS 256
-#define NTTY_FIFO_BUFFER_SIZE 8192
-
-/* Must be power of 2 */
-#define FIFO_BUFFER_SIZE_UL 8192
-
-/* Size of tmp send buffer to card */
-#define SEND_BUF_MAX 1024
-#define RECEIVE_BUF_MAX 4
-
-
-#define R_IIR 0x0000 /* Interrupt Identity Register */
-#define R_FCR 0x0000 /* Flow Control Register */
-#define R_IER 0x0004 /* Interrupt Enable Register */
-
-#define CONFIG_MAGIC 0xEFEFFEFE
-#define TOGGLE_VALID 0x0000
-
-/* Definition of interrupt tokens */
-#define MDM_DL1 0x0001
-#define MDM_UL1 0x0002
-#define MDM_DL2 0x0004
-#define MDM_UL2 0x0008
-#define DIAG_DL1 0x0010
-#define DIAG_DL2 0x0020
-#define DIAG_UL 0x0040
-#define APP1_DL 0x0080
-#define APP1_UL 0x0100
-#define APP2_DL 0x0200
-#define APP2_UL 0x0400
-#define CTRL_DL 0x0800
-#define CTRL_UL 0x1000
-#define RESET 0x8000
-
-#define MDM_DL (MDM_DL1 | MDM_DL2)
-#define MDM_UL (MDM_UL1 | MDM_UL2)
-#define DIAG_DL (DIAG_DL1 | DIAG_DL2)
-
-/* modem signal definition */
-#define CTRL_DSR 0x0001
-#define CTRL_DCD 0x0002
-#define CTRL_RI 0x0004
-#define CTRL_CTS 0x0008
-
-#define CTRL_DTR 0x0001
-#define CTRL_RTS 0x0002
-
-#define MAX_PORT 4
-#define NOZOMI_MAX_PORTS 5
-#define NOZOMI_MAX_CARDS (NTTY_TTY_MAXMINORS / MAX_PORT)
-
-/* Type definitions */
-
-/*
- * There are two types of nozomi cards,
- * one with 2048 memory and with 8192 memory
- */
-enum card_type {
- F32_2 = 2048, /* 512 bytes downlink + uplink * 2 -> 2048 */
- F32_8 = 8192, /* 3072 bytes downl. + 1024 bytes uplink * 2 -> 8192 */
-};
-
-/* Initialization states a card can be in */
-enum card_state {
- NOZOMI_STATE_UKNOWN = 0,
- NOZOMI_STATE_ENABLED = 1, /* pci device enabled */
- NOZOMI_STATE_ALLOCATED = 2, /* config setup done */
- NOZOMI_STATE_READY = 3, /* flowcontrols received */
-};
-
-/* Two different toggle channels exist */
-enum channel_type {
- CH_A = 0,
- CH_B = 1,
-};
-
-/* Port definition for the card regarding flow control */
-enum ctrl_port_type {
- CTRL_CMD = 0,
- CTRL_MDM = 1,
- CTRL_DIAG = 2,
- CTRL_APP1 = 3,
- CTRL_APP2 = 4,
- CTRL_ERROR = -1,
-};
-
-/* Ports that the nozomi has */
-enum port_type {
- PORT_MDM = 0,
- PORT_DIAG = 1,
- PORT_APP1 = 2,
- PORT_APP2 = 3,
- PORT_CTRL = 4,
- PORT_ERROR = -1,
-};
-
-#ifdef __BIG_ENDIAN
-/* Big endian */
-
-struct toggles {
- unsigned int enabled:5; /*
- * Toggle fields are valid if enabled is 0,
- * else A-channels must always be used.
- */
- unsigned int diag_dl:1;
- unsigned int mdm_dl:1;
- unsigned int mdm_ul:1;
-} __attribute__ ((packed));
-
-/* Configuration table to read at startup of card */
-/* Is for now only needed during initialization phase */
-struct config_table {
- u32 signature;
- u16 product_information;
- u16 version;
- u8 pad3[3];
- struct toggles toggle;
- u8 pad1[4];
- u16 dl_mdm_len1; /*
- * If this is 64, it can hold
- * 60 bytes + 4 that is length field
- */
- u16 dl_start;
-
- u16 dl_diag_len1;
- u16 dl_mdm_len2; /*
- * If this is 64, it can hold
- * 60 bytes + 4 that is length field
- */
- u16 dl_app1_len;
-
- u16 dl_diag_len2;
- u16 dl_ctrl_len;
- u16 dl_app2_len;
- u8 pad2[16];
- u16 ul_mdm_len1;
- u16 ul_start;
- u16 ul_diag_len;
- u16 ul_mdm_len2;
- u16 ul_app1_len;
- u16 ul_app2_len;
- u16 ul_ctrl_len;
-} __attribute__ ((packed));
-
-/* This stores all control downlink flags */
-struct ctrl_dl {
- u8 port;
- unsigned int reserved:4;
- unsigned int CTS:1;
- unsigned int RI:1;
- unsigned int DCD:1;
- unsigned int DSR:1;
-} __attribute__ ((packed));
-
-/* This stores all control uplink flags */
-struct ctrl_ul {
- u8 port;
- unsigned int reserved:6;
- unsigned int RTS:1;
- unsigned int DTR:1;
-} __attribute__ ((packed));
-
-#else
-/* Little endian */
-
-/* This represents the toggle information */
-struct toggles {
- unsigned int mdm_ul:1;
- unsigned int mdm_dl:1;
- unsigned int diag_dl:1;
- unsigned int enabled:5; /*
- * Toggle fields are valid if enabled is 0,
- * else A-channels must always be used.
- */
-} __attribute__ ((packed));
-
-/* Configuration table to read at startup of card */
-struct config_table {
- u32 signature;
- u16 version;
- u16 product_information;
- struct toggles toggle;
- u8 pad1[7];
- u16 dl_start;
- u16 dl_mdm_len1; /*
- * If this is 64, it can hold
- * 60 bytes + 4 that is length field
- */
- u16 dl_mdm_len2;
- u16 dl_diag_len1;
- u16 dl_diag_len2;
- u16 dl_app1_len;
- u16 dl_app2_len;
- u16 dl_ctrl_len;
- u8 pad2[16];
- u16 ul_start;
- u16 ul_mdm_len2;
- u16 ul_mdm_len1;
- u16 ul_diag_len;
- u16 ul_app1_len;
- u16 ul_app2_len;
- u16 ul_ctrl_len;
-} __attribute__ ((packed));
-
-/* This stores all control downlink flags */
-struct ctrl_dl {
- unsigned int DSR:1;
- unsigned int DCD:1;
- unsigned int RI:1;
- unsigned int CTS:1;
- unsigned int reserverd:4;
- u8 port;
-} __attribute__ ((packed));
-
-/* This stores all control uplink flags */
-struct ctrl_ul {
- unsigned int DTR:1;
- unsigned int RTS:1;
- unsigned int reserved:6;
- u8 port;
-} __attribute__ ((packed));
-#endif
-
-/* This holds all information that is needed regarding a port */
-struct port {
- struct tty_port port;
- u8 update_flow_control;
- struct ctrl_ul ctrl_ul;
- struct ctrl_dl ctrl_dl;
- struct kfifo fifo_ul;
- void __iomem *dl_addr[2];
- u32 dl_size[2];
- u8 toggle_dl;
- void __iomem *ul_addr[2];
- u32 ul_size[2];
- u8 toggle_ul;
- u16 token_dl;
-
- /* mutex to ensure one access patch to this port */
- struct mutex tty_sem;
- wait_queue_head_t tty_wait;
- struct async_icount tty_icount;
-
- struct nozomi *dc;
-};
-
-/* Private data one for each card in the system */
-struct nozomi {
- void __iomem *base_addr;
- unsigned long flip;
-
- /* Pointers to registers */
- void __iomem *reg_iir;
- void __iomem *reg_fcr;
- void __iomem *reg_ier;
-
- u16 last_ier;
- enum card_type card_type;
- struct config_table config_table; /* Configuration table */
- struct pci_dev *pdev;
- struct port port[NOZOMI_MAX_PORTS];
- u8 *send_buf;
-
- spinlock_t spin_mutex; /* secures access to registers and tty */
-
- unsigned int index_start;
- enum card_state state;
- u32 open_ttys;
-};
-
-/* This is a data packet that is read or written to/from card */
-struct buffer {
- u32 size; /* size is the length of the data buffer */
- u8 *data;
-} __attribute__ ((packed));
-
-/* Global variables */
-static const struct pci_device_id nozomi_pci_tbl[] __devinitconst = {
- {PCI_DEVICE(0x1931, 0x000c)}, /* Nozomi HSDPA */
- {},
-};
-
-MODULE_DEVICE_TABLE(pci, nozomi_pci_tbl);
-
-static struct nozomi *ndevs[NOZOMI_MAX_CARDS];
-static struct tty_driver *ntty_driver;
-
-static const struct tty_port_operations noz_tty_port_ops;
-
-/*
- * find card by tty_index
- */
-static inline struct nozomi *get_dc_by_tty(const struct tty_struct *tty)
-{
- return tty ? ndevs[tty->index / MAX_PORT] : NULL;
-}
-
-static inline struct port *get_port_by_tty(const struct tty_struct *tty)
-{
- struct nozomi *ndev = get_dc_by_tty(tty);
- return ndev ? &ndev->port[tty->index % MAX_PORT] : NULL;
-}
-
-/*
- * TODO:
- * -Optimize
- * -Rewrite cleaner
- */
-
-static void read_mem32(u32 *buf, const void __iomem *mem_addr_start,
- u32 size_bytes)
-{
- u32 i = 0;
- const u32 __iomem *ptr = mem_addr_start;
- u16 *buf16;
-
- if (unlikely(!ptr || !buf))
- goto out;
-
- /* shortcut for extremely often used cases */
- switch (size_bytes) {
- case 2: /* 2 bytes */
- buf16 = (u16 *) buf;
- *buf16 = __le16_to_cpu(readw(ptr));
- goto out;
- break;
- case 4: /* 4 bytes */
- *(buf) = __le32_to_cpu(readl(ptr));
- goto out;
- break;
- }
-
- while (i < size_bytes) {
- if (size_bytes - i == 2) {
- /* Handle 2 bytes in the end */
- buf16 = (u16 *) buf;
- *(buf16) = __le16_to_cpu(readw(ptr));
- i += 2;
- } else {
- /* Read 4 bytes */
- *(buf) = __le32_to_cpu(readl(ptr));
- i += 4;
- }
- buf++;
- ptr++;
- }
-out:
- return;
-}
-
-/*
- * TODO:
- * -Optimize
- * -Rewrite cleaner
- */
-static u32 write_mem32(void __iomem *mem_addr_start, const u32 *buf,
- u32 size_bytes)
-{
- u32 i = 0;
- u32 __iomem *ptr = mem_addr_start;
- const u16 *buf16;
-
- if (unlikely(!ptr || !buf))
- return 0;
-
- /* shortcut for extremely often used cases */
- switch (size_bytes) {
- case 2: /* 2 bytes */
- buf16 = (const u16 *)buf;
- writew(__cpu_to_le16(*buf16), ptr);
- return 2;
- break;
- case 1: /*
- * also needs to write 4 bytes in this case
- * so falling through..
- */
- case 4: /* 4 bytes */
- writel(__cpu_to_le32(*buf), ptr);
- return 4;
- break;
- }
-
- while (i < size_bytes) {
- if (size_bytes - i == 2) {
- /* 2 bytes */
- buf16 = (const u16 *)buf;
- writew(__cpu_to_le16(*buf16), ptr);
- i += 2;
- } else {
- /* 4 bytes */
- writel(__cpu_to_le32(*buf), ptr);
- i += 4;
- }
- buf++;
- ptr++;
- }
- return i;
-}
-
-/* Setup pointers to different channels and also setup buffer sizes. */
-static void setup_memory(struct nozomi *dc)
-{
- void __iomem *offset = dc->base_addr + dc->config_table.dl_start;
- /* The length reported is including the length field of 4 bytes,
- * hence subtract with 4.
- */
- const u16 buff_offset = 4;
-
- /* Modem port dl configuration */
- dc->port[PORT_MDM].dl_addr[CH_A] = offset;
- dc->port[PORT_MDM].dl_addr[CH_B] =
- (offset += dc->config_table.dl_mdm_len1);
- dc->port[PORT_MDM].dl_size[CH_A] =
- dc->config_table.dl_mdm_len1 - buff_offset;
- dc->port[PORT_MDM].dl_size[CH_B] =
- dc->config_table.dl_mdm_len2 - buff_offset;
-
- /* Diag port dl configuration */
- dc->port[PORT_DIAG].dl_addr[CH_A] =
- (offset += dc->config_table.dl_mdm_len2);
- dc->port[PORT_DIAG].dl_size[CH_A] =
- dc->config_table.dl_diag_len1 - buff_offset;
- dc->port[PORT_DIAG].dl_addr[CH_B] =
- (offset += dc->config_table.dl_diag_len1);
- dc->port[PORT_DIAG].dl_size[CH_B] =
- dc->config_table.dl_diag_len2 - buff_offset;
-
- /* App1 port dl configuration */
- dc->port[PORT_APP1].dl_addr[CH_A] =
- (offset += dc->config_table.dl_diag_len2);
- dc->port[PORT_APP1].dl_size[CH_A] =
- dc->config_table.dl_app1_len - buff_offset;
-
- /* App2 port dl configuration */
- dc->port[PORT_APP2].dl_addr[CH_A] =
- (offset += dc->config_table.dl_app1_len);
- dc->port[PORT_APP2].dl_size[CH_A] =
- dc->config_table.dl_app2_len - buff_offset;
-
- /* Ctrl dl configuration */
- dc->port[PORT_CTRL].dl_addr[CH_A] =
- (offset += dc->config_table.dl_app2_len);
- dc->port[PORT_CTRL].dl_size[CH_A] =
- dc->config_table.dl_ctrl_len - buff_offset;
-
- offset = dc->base_addr + dc->config_table.ul_start;
-
- /* Modem Port ul configuration */
- dc->port[PORT_MDM].ul_addr[CH_A] = offset;
- dc->port[PORT_MDM].ul_size[CH_A] =
- dc->config_table.ul_mdm_len1 - buff_offset;
- dc->port[PORT_MDM].ul_addr[CH_B] =
- (offset += dc->config_table.ul_mdm_len1);
- dc->port[PORT_MDM].ul_size[CH_B] =
- dc->config_table.ul_mdm_len2 - buff_offset;
-
- /* Diag port ul configuration */
- dc->port[PORT_DIAG].ul_addr[CH_A] =
- (offset += dc->config_table.ul_mdm_len2);
- dc->port[PORT_DIAG].ul_size[CH_A] =
- dc->config_table.ul_diag_len - buff_offset;
-
- /* App1 port ul configuration */
- dc->port[PORT_APP1].ul_addr[CH_A] =
- (offset += dc->config_table.ul_diag_len);
- dc->port[PORT_APP1].ul_size[CH_A] =
- dc->config_table.ul_app1_len - buff_offset;
-
- /* App2 port ul configuration */
- dc->port[PORT_APP2].ul_addr[CH_A] =
- (offset += dc->config_table.ul_app1_len);
- dc->port[PORT_APP2].ul_size[CH_A] =
- dc->config_table.ul_app2_len - buff_offset;
-
- /* Ctrl ul configuration */
- dc->port[PORT_CTRL].ul_addr[CH_A] =
- (offset += dc->config_table.ul_app2_len);
- dc->port[PORT_CTRL].ul_size[CH_A] =
- dc->config_table.ul_ctrl_len - buff_offset;
-}
-
-/* Dump config table under initalization phase */
-#ifdef DEBUG
-static void dump_table(const struct nozomi *dc)
-{
- DBG3("signature: 0x%08X", dc->config_table.signature);
- DBG3("version: 0x%04X", dc->config_table.version);
- DBG3("product_information: 0x%04X", \
- dc->config_table.product_information);
- DBG3("toggle enabled: %d", dc->config_table.toggle.enabled);
- DBG3("toggle up_mdm: %d", dc->config_table.toggle.mdm_ul);
- DBG3("toggle dl_mdm: %d", dc->config_table.toggle.mdm_dl);
- DBG3("toggle dl_dbg: %d", dc->config_table.toggle.diag_dl);
-
- DBG3("dl_start: 0x%04X", dc->config_table.dl_start);
- DBG3("dl_mdm_len0: 0x%04X, %d", dc->config_table.dl_mdm_len1,
- dc->config_table.dl_mdm_len1);
- DBG3("dl_mdm_len1: 0x%04X, %d", dc->config_table.dl_mdm_len2,
- dc->config_table.dl_mdm_len2);
- DBG3("dl_diag_len0: 0x%04X, %d", dc->config_table.dl_diag_len1,
- dc->config_table.dl_diag_len1);
- DBG3("dl_diag_len1: 0x%04X, %d", dc->config_table.dl_diag_len2,
- dc->config_table.dl_diag_len2);
- DBG3("dl_app1_len: 0x%04X, %d", dc->config_table.dl_app1_len,
- dc->config_table.dl_app1_len);
- DBG3("dl_app2_len: 0x%04X, %d", dc->config_table.dl_app2_len,
- dc->config_table.dl_app2_len);
- DBG3("dl_ctrl_len: 0x%04X, %d", dc->config_table.dl_ctrl_len,
- dc->config_table.dl_ctrl_len);
- DBG3("ul_start: 0x%04X, %d", dc->config_table.ul_start,
- dc->config_table.ul_start);
- DBG3("ul_mdm_len[0]: 0x%04X, %d", dc->config_table.ul_mdm_len1,
- dc->config_table.ul_mdm_len1);
- DBG3("ul_mdm_len[1]: 0x%04X, %d", dc->config_table.ul_mdm_len2,
- dc->config_table.ul_mdm_len2);
- DBG3("ul_diag_len: 0x%04X, %d", dc->config_table.ul_diag_len,
- dc->config_table.ul_diag_len);
- DBG3("ul_app1_len: 0x%04X, %d", dc->config_table.ul_app1_len,
- dc->config_table.ul_app1_len);
- DBG3("ul_app2_len: 0x%04X, %d", dc->config_table.ul_app2_len,
- dc->config_table.ul_app2_len);
- DBG3("ul_ctrl_len: 0x%04X, %d", dc->config_table.ul_ctrl_len,
- dc->config_table.ul_ctrl_len);
-}
-#else
-static inline void dump_table(const struct nozomi *dc) { }
-#endif
-
-/*
- * Read configuration table from card under intalization phase
- * Returns 1 if ok, else 0
- */
-static int nozomi_read_config_table(struct nozomi *dc)
-{
- read_mem32((u32 *) &dc->config_table, dc->base_addr + 0,
- sizeof(struct config_table));
-
- if (dc->config_table.signature != CONFIG_MAGIC) {
- dev_err(&dc->pdev->dev, "ConfigTable Bad! 0x%08X != 0x%08X\n",
- dc->config_table.signature, CONFIG_MAGIC);
- return 0;
- }
-
- if ((dc->config_table.version == 0)
- || (dc->config_table.toggle.enabled == TOGGLE_VALID)) {
- int i;
- DBG1("Second phase, configuring card");
-
- setup_memory(dc);
-
- dc->port[PORT_MDM].toggle_ul = dc->config_table.toggle.mdm_ul;
- dc->port[PORT_MDM].toggle_dl = dc->config_table.toggle.mdm_dl;
- dc->port[PORT_DIAG].toggle_dl = dc->config_table.toggle.diag_dl;
- DBG1("toggle ports: MDM UL:%d MDM DL:%d, DIAG DL:%d",
- dc->port[PORT_MDM].toggle_ul,
- dc->port[PORT_MDM].toggle_dl, dc->port[PORT_DIAG].toggle_dl);
-
- dump_table(dc);
-
- for (i = PORT_MDM; i < MAX_PORT; i++) {
- memset(&dc->port[i].ctrl_dl, 0, sizeof(struct ctrl_dl));
- memset(&dc->port[i].ctrl_ul, 0, sizeof(struct ctrl_ul));
- }
-
- /* Enable control channel */
- dc->last_ier = dc->last_ier | CTRL_DL;
- writew(dc->last_ier, dc->reg_ier);
-
- dc->state = NOZOMI_STATE_ALLOCATED;
- dev_info(&dc->pdev->dev, "Initialization OK!\n");
- return 1;
- }
-
- if ((dc->config_table.version > 0)
- && (dc->config_table.toggle.enabled != TOGGLE_VALID)) {
- u32 offset = 0;
- DBG1("First phase: pushing upload buffers, clearing download");
-
- dev_info(&dc->pdev->dev, "Version of card: %d\n",
- dc->config_table.version);
-
- /* Here we should disable all I/O over F32. */
- setup_memory(dc);
-
- /*
- * We should send ALL channel pair tokens back along
- * with reset token
- */
-
- /* push upload modem buffers */
- write_mem32(dc->port[PORT_MDM].ul_addr[CH_A],
- (u32 *) &offset, 4);
- write_mem32(dc->port[PORT_MDM].ul_addr[CH_B],
- (u32 *) &offset, 4);
-
- writew(MDM_UL | DIAG_DL | MDM_DL, dc->reg_fcr);
-
- DBG1("First phase done");
- }
-
- return 1;
-}
-
-/* Enable uplink interrupts */
-static void enable_transmit_ul(enum port_type port, struct nozomi *dc)
-{
- static const u16 mask[] = {MDM_UL, DIAG_UL, APP1_UL, APP2_UL, CTRL_UL};
-
- if (port < NOZOMI_MAX_PORTS) {
- dc->last_ier |= mask[port];
- writew(dc->last_ier, dc->reg_ier);
- } else {
- dev_err(&dc->pdev->dev, "Called with wrong port?\n");
- }
-}
-
-/* Disable uplink interrupts */
-static void disable_transmit_ul(enum port_type port, struct nozomi *dc)
-{
- static const u16 mask[] =
- {~MDM_UL, ~DIAG_UL, ~APP1_UL, ~APP2_UL, ~CTRL_UL};
-
- if (port < NOZOMI_MAX_PORTS) {
- dc->last_ier &= mask[port];
- writew(dc->last_ier, dc->reg_ier);
- } else {
- dev_err(&dc->pdev->dev, "Called with wrong port?\n");
- }
-}
-
-/* Enable downlink interrupts */
-static void enable_transmit_dl(enum port_type port, struct nozomi *dc)
-{
- static const u16 mask[] = {MDM_DL, DIAG_DL, APP1_DL, APP2_DL, CTRL_DL};
-
- if (port < NOZOMI_MAX_PORTS) {
- dc->last_ier |= mask[port];
- writew(dc->last_ier, dc->reg_ier);
- } else {
- dev_err(&dc->pdev->dev, "Called with wrong port?\n");
- }
-}
-
-/* Disable downlink interrupts */
-static void disable_transmit_dl(enum port_type port, struct nozomi *dc)
-{
- static const u16 mask[] =
- {~MDM_DL, ~DIAG_DL, ~APP1_DL, ~APP2_DL, ~CTRL_DL};
-
- if (port < NOZOMI_MAX_PORTS) {
- dc->last_ier &= mask[port];
- writew(dc->last_ier, dc->reg_ier);
- } else {
- dev_err(&dc->pdev->dev, "Called with wrong port?\n");
- }
-}
-
-/*
- * Return 1 - send buffer to card and ack.
- * Return 0 - don't ack, don't send buffer to card.
- */
-static int send_data(enum port_type index, struct nozomi *dc)
-{
- u32 size = 0;
- struct port *port = &dc->port[index];
- const u8 toggle = port->toggle_ul;
- void __iomem *addr = port->ul_addr[toggle];
- const u32 ul_size = port->ul_size[toggle];
- struct tty_struct *tty = tty_port_tty_get(&port->port);
-
- /* Get data from tty and place in buf for now */
- size = kfifo_out(&port->fifo_ul, dc->send_buf,
- ul_size < SEND_BUF_MAX ? ul_size : SEND_BUF_MAX);
-
- if (size == 0) {
- DBG4("No more data to send, disable link:");
- tty_kref_put(tty);
- return 0;
- }
-
- /* DUMP(buf, size); */
-
- /* Write length + data */
- write_mem32(addr, (u32 *) &size, 4);
- write_mem32(addr + 4, (u32 *) dc->send_buf, size);
-
- if (tty)
- tty_wakeup(tty);
-
- tty_kref_put(tty);
- return 1;
-}
-
-/* If all data has been read, return 1, else 0 */
-static int receive_data(enum port_type index, struct nozomi *dc)
-{
- u8 buf[RECEIVE_BUF_MAX] = { 0 };
- int size;
- u32 offset = 4;
- struct port *port = &dc->port[index];
- void __iomem *addr = port->dl_addr[port->toggle_dl];
- struct tty_struct *tty = tty_port_tty_get(&port->port);
- int i, ret;
-
- if (unlikely(!tty)) {
- DBG1("tty not open for port: %d?", index);
- return 1;
- }
-
- read_mem32((u32 *) &size, addr, 4);
- /* DBG1( "%d bytes port: %d", size, index); */
-
- if (test_bit(TTY_THROTTLED, &tty->flags)) {
- DBG1("No room in tty, don't read data, don't ack interrupt, "
- "disable interrupt");
-
- /* disable interrupt in downlink... */
- disable_transmit_dl(index, dc);
- ret = 0;
- goto put;
- }
-
- if (unlikely(size == 0)) {
- dev_err(&dc->pdev->dev, "size == 0?\n");
- ret = 1;
- goto put;
- }
-
- while (size > 0) {
- read_mem32((u32 *) buf, addr + offset, RECEIVE_BUF_MAX);
-
- if (size == 1) {
- tty_insert_flip_char(tty, buf[0], TTY_NORMAL);
- size = 0;
- } else if (size < RECEIVE_BUF_MAX) {
- size -= tty_insert_flip_string(tty, (char *) buf, size);
- } else {
- i = tty_insert_flip_string(tty, \
- (char *) buf, RECEIVE_BUF_MAX);
- size -= i;
- offset += i;
- }
- }
-
- set_bit(index, &dc->flip);
- ret = 1;
-put:
- tty_kref_put(tty);
- return ret;
-}
-
-/* Debug for interrupts */
-#ifdef DEBUG
-static char *interrupt2str(u16 interrupt)
-{
- static char buf[TMP_BUF_MAX];
- char *p = buf;
-
- interrupt & MDM_DL1 ? p += snprintf(p, TMP_BUF_MAX, "MDM_DL1 ") : NULL;
- interrupt & MDM_DL2 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "MDM_DL2 ") : NULL;
-
- interrupt & MDM_UL1 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "MDM_UL1 ") : NULL;
- interrupt & MDM_UL2 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "MDM_UL2 ") : NULL;
-
- interrupt & DIAG_DL1 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "DIAG_DL1 ") : NULL;
- interrupt & DIAG_DL2 ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "DIAG_DL2 ") : NULL;
-
- interrupt & DIAG_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "DIAG_UL ") : NULL;
-
- interrupt & APP1_DL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "APP1_DL ") : NULL;
- interrupt & APP2_DL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "APP2_DL ") : NULL;
-
- interrupt & APP1_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "APP1_UL ") : NULL;
- interrupt & APP2_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "APP2_UL ") : NULL;
-
- interrupt & CTRL_DL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "CTRL_DL ") : NULL;
- interrupt & CTRL_UL ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "CTRL_UL ") : NULL;
-
- interrupt & RESET ? p += snprintf(p, TMP_BUF_MAX - (p - buf),
- "RESET ") : NULL;
-
- return buf;
-}
-#endif
-
-/*
- * Receive flow control
- * Return 1 - If ok, else 0
- */
-static int receive_flow_control(struct nozomi *dc)
-{
- enum port_type port = PORT_MDM;
- struct ctrl_dl ctrl_dl;
- struct ctrl_dl old_ctrl;
- u16 enable_ier = 0;
-
- read_mem32((u32 *) &ctrl_dl, dc->port[PORT_CTRL].dl_addr[CH_A], 2);
-
- switch (ctrl_dl.port) {
- case CTRL_CMD:
- DBG1("The Base Band sends this value as a response to a "
- "request for IMSI detach sent over the control "
- "channel uplink (see section 7.6.1).");
- break;
- case CTRL_MDM:
- port = PORT_MDM;
- enable_ier = MDM_DL;
- break;
- case CTRL_DIAG:
- port = PORT_DIAG;
- enable_ier = DIAG_DL;
- break;
- case CTRL_APP1:
- port = PORT_APP1;
- enable_ier = APP1_DL;
- break;
- case CTRL_APP2:
- port = PORT_APP2;
- enable_ier = APP2_DL;
- if (dc->state == NOZOMI_STATE_ALLOCATED) {
- /*
- * After card initialization the flow control
- * received for APP2 is always the last
- */
- dc->state = NOZOMI_STATE_READY;
- dev_info(&dc->pdev->dev, "Device READY!\n");
- }
- break;
- default:
- dev_err(&dc->pdev->dev,
- "ERROR: flow control received for non-existing port\n");
- return 0;
- };
-
- DBG1("0x%04X->0x%04X", *((u16 *)&dc->port[port].ctrl_dl),
- *((u16 *)&ctrl_dl));
-
- old_ctrl = dc->port[port].ctrl_dl;
- dc->port[port].ctrl_dl = ctrl_dl;
-
- if (old_ctrl.CTS == 1 && ctrl_dl.CTS == 0) {
- DBG1("Disable interrupt (0x%04X) on port: %d",
- enable_ier, port);
- disable_transmit_ul(port, dc);
-
- } else if (old_ctrl.CTS == 0 && ctrl_dl.CTS == 1) {
-
- if (kfifo_len(&dc->port[port].fifo_ul)) {
- DBG1("Enable interrupt (0x%04X) on port: %d",
- enable_ier, port);
- DBG1("Data in buffer [%d], enable transmit! ",
- kfifo_len(&dc->port[port].fifo_ul));
- enable_transmit_ul(port, dc);
- } else {
- DBG1("No data in buffer...");
- }
- }
-
- if (*(u16 *)&old_ctrl == *(u16 *)&ctrl_dl) {
- DBG1(" No change in mctrl");
- return 1;
- }
- /* Update statistics */
- if (old_ctrl.CTS != ctrl_dl.CTS)
- dc->port[port].tty_icount.cts++;
- if (old_ctrl.DSR != ctrl_dl.DSR)
- dc->port[port].tty_icount.dsr++;
- if (old_ctrl.RI != ctrl_dl.RI)
- dc->port[port].tty_icount.rng++;
- if (old_ctrl.DCD != ctrl_dl.DCD)
- dc->port[port].tty_icount.dcd++;
-
- wake_up_interruptible(&dc->port[port].tty_wait);
-
- DBG1("port: %d DCD(%d), CTS(%d), RI(%d), DSR(%d)",
- port,
- dc->port[port].tty_icount.dcd, dc->port[port].tty_icount.cts,
- dc->port[port].tty_icount.rng, dc->port[port].tty_icount.dsr);
-
- return 1;
-}
-
-static enum ctrl_port_type port2ctrl(enum port_type port,
- const struct nozomi *dc)
-{
- switch (port) {
- case PORT_MDM:
- return CTRL_MDM;
- case PORT_DIAG:
- return CTRL_DIAG;
- case PORT_APP1:
- return CTRL_APP1;
- case PORT_APP2:
- return CTRL_APP2;
- default:
- dev_err(&dc->pdev->dev,
- "ERROR: send flow control " \
- "received for non-existing port\n");
- };
- return CTRL_ERROR;
-}
-
-/*
- * Send flow control, can only update one channel at a time
- * Return 0 - If we have updated all flow control
- * Return 1 - If we need to update more flow control, ack current enable more
- */
-static int send_flow_control(struct nozomi *dc)
-{
- u32 i, more_flow_control_to_be_updated = 0;
- u16 *ctrl;
-
- for (i = PORT_MDM; i < MAX_PORT; i++) {
- if (dc->port[i].update_flow_control) {
- if (more_flow_control_to_be_updated) {
- /* We have more flow control to be updated */
- return 1;
- }
- dc->port[i].ctrl_ul.port = port2ctrl(i, dc);
- ctrl = (u16 *)&dc->port[i].ctrl_ul;
- write_mem32(dc->port[PORT_CTRL].ul_addr[0], \
- (u32 *) ctrl, 2);
- dc->port[i].update_flow_control = 0;
- more_flow_control_to_be_updated = 1;
- }
- }
- return 0;
-}
-
-/*
- * Handle downlink data, ports that are handled are modem and diagnostics
- * Return 1 - ok
- * Return 0 - toggle fields are out of sync
- */
-static int handle_data_dl(struct nozomi *dc, enum port_type port, u8 *toggle,
- u16 read_iir, u16 mask1, u16 mask2)
-{
- if (*toggle == 0 && read_iir & mask1) {
- if (receive_data(port, dc)) {
- writew(mask1, dc->reg_fcr);
- *toggle = !(*toggle);
- }
-
- if (read_iir & mask2) {
- if (receive_data(port, dc)) {
- writew(mask2, dc->reg_fcr);
- *toggle = !(*toggle);
- }
- }
- } else if (*toggle == 1 && read_iir & mask2) {
- if (receive_data(port, dc)) {
- writew(mask2, dc->reg_fcr);
- *toggle = !(*toggle);
- }
-
- if (read_iir & mask1) {
- if (receive_data(port, dc)) {
- writew(mask1, dc->reg_fcr);
- *toggle = !(*toggle);
- }
- }
- } else {
- dev_err(&dc->pdev->dev, "port out of sync!, toggle:%d\n",
- *toggle);
- return 0;
- }
- return 1;
-}
-
-/*
- * Handle uplink data, this is currently for the modem port
- * Return 1 - ok
- * Return 0 - toggle field are out of sync
- */
-static int handle_data_ul(struct nozomi *dc, enum port_type port, u16 read_iir)
-{
- u8 *toggle = &(dc->port[port].toggle_ul);
-
- if (*toggle == 0 && read_iir & MDM_UL1) {
- dc->last_ier &= ~MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(port, dc)) {
- writew(MDM_UL1, dc->reg_fcr);
- dc->last_ier = dc->last_ier | MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- *toggle = !*toggle;
- }
-
- if (read_iir & MDM_UL2) {
- dc->last_ier &= ~MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(port, dc)) {
- writew(MDM_UL2, dc->reg_fcr);
- dc->last_ier = dc->last_ier | MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- *toggle = !*toggle;
- }
- }
-
- } else if (*toggle == 1 && read_iir & MDM_UL2) {
- dc->last_ier &= ~MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(port, dc)) {
- writew(MDM_UL2, dc->reg_fcr);
- dc->last_ier = dc->last_ier | MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- *toggle = !*toggle;
- }
-
- if (read_iir & MDM_UL1) {
- dc->last_ier &= ~MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(port, dc)) {
- writew(MDM_UL1, dc->reg_fcr);
- dc->last_ier = dc->last_ier | MDM_UL;
- writew(dc->last_ier, dc->reg_ier);
- *toggle = !*toggle;
- }
- }
- } else {
- writew(read_iir & MDM_UL, dc->reg_fcr);
- dev_err(&dc->pdev->dev, "port out of sync!\n");
- return 0;
- }
- return 1;
-}
-
-static irqreturn_t interrupt_handler(int irq, void *dev_id)
-{
- struct nozomi *dc = dev_id;
- unsigned int a;
- u16 read_iir;
-
- if (!dc)
- return IRQ_NONE;
-
- spin_lock(&dc->spin_mutex);
- read_iir = readw(dc->reg_iir);
-
- /* Card removed */
- if (read_iir == (u16)-1)
- goto none;
- /*
- * Just handle interrupt enabled in IER
- * (by masking with dc->last_ier)
- */
- read_iir &= dc->last_ier;
-
- if (read_iir == 0)
- goto none;
-
-
- DBG4("%s irq:0x%04X, prev:0x%04X", interrupt2str(read_iir), read_iir,
- dc->last_ier);
-
- if (read_iir & RESET) {
- if (unlikely(!nozomi_read_config_table(dc))) {
- dc->last_ier = 0x0;
- writew(dc->last_ier, dc->reg_ier);
- dev_err(&dc->pdev->dev, "Could not read status from "
- "card, we should disable interface\n");
- } else {
- writew(RESET, dc->reg_fcr);
- }
- /* No more useful info if this was the reset interrupt. */
- goto exit_handler;
- }
- if (read_iir & CTRL_UL) {
- DBG1("CTRL_UL");
- dc->last_ier &= ~CTRL_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_flow_control(dc)) {
- writew(CTRL_UL, dc->reg_fcr);
- dc->last_ier = dc->last_ier | CTRL_UL;
- writew(dc->last_ier, dc->reg_ier);
- }
- }
- if (read_iir & CTRL_DL) {
- receive_flow_control(dc);
- writew(CTRL_DL, dc->reg_fcr);
- }
- if (read_iir & MDM_DL) {
- if (!handle_data_dl(dc, PORT_MDM,
- &(dc->port[PORT_MDM].toggle_dl), read_iir,
- MDM_DL1, MDM_DL2)) {
- dev_err(&dc->pdev->dev, "MDM_DL out of sync!\n");
- goto exit_handler;
- }
- }
- if (read_iir & MDM_UL) {
- if (!handle_data_ul(dc, PORT_MDM, read_iir)) {
- dev_err(&dc->pdev->dev, "MDM_UL out of sync!\n");
- goto exit_handler;
- }
- }
- if (read_iir & DIAG_DL) {
- if (!handle_data_dl(dc, PORT_DIAG,
- &(dc->port[PORT_DIAG].toggle_dl), read_iir,
- DIAG_DL1, DIAG_DL2)) {
- dev_err(&dc->pdev->dev, "DIAG_DL out of sync!\n");
- goto exit_handler;
- }
- }
- if (read_iir & DIAG_UL) {
- dc->last_ier &= ~DIAG_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(PORT_DIAG, dc)) {
- writew(DIAG_UL, dc->reg_fcr);
- dc->last_ier = dc->last_ier | DIAG_UL;
- writew(dc->last_ier, dc->reg_ier);
- }
- }
- if (read_iir & APP1_DL) {
- if (receive_data(PORT_APP1, dc))
- writew(APP1_DL, dc->reg_fcr);
- }
- if (read_iir & APP1_UL) {
- dc->last_ier &= ~APP1_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(PORT_APP1, dc)) {
- writew(APP1_UL, dc->reg_fcr);
- dc->last_ier = dc->last_ier | APP1_UL;
- writew(dc->last_ier, dc->reg_ier);
- }
- }
- if (read_iir & APP2_DL) {
- if (receive_data(PORT_APP2, dc))
- writew(APP2_DL, dc->reg_fcr);
- }
- if (read_iir & APP2_UL) {
- dc->last_ier &= ~APP2_UL;
- writew(dc->last_ier, dc->reg_ier);
- if (send_data(PORT_APP2, dc)) {
- writew(APP2_UL, dc->reg_fcr);
- dc->last_ier = dc->last_ier | APP2_UL;
- writew(dc->last_ier, dc->reg_ier);
- }
- }
-
-exit_handler:
- spin_unlock(&dc->spin_mutex);
- for (a = 0; a < NOZOMI_MAX_PORTS; a++) {
- struct tty_struct *tty;
- if (test_and_clear_bit(a, &dc->flip)) {
- tty = tty_port_tty_get(&dc->port[a].port);
- if (tty)
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
- }
- }
- return IRQ_HANDLED;
-none:
- spin_unlock(&dc->spin_mutex);
- return IRQ_NONE;
-}
-
-static void nozomi_get_card_type(struct nozomi *dc)
-{
- int i;
- u32 size = 0;
-
- for (i = 0; i < 6; i++)
- size += pci_resource_len(dc->pdev, i);
-
- /* Assume card type F32_8 if no match */
- dc->card_type = size == 2048 ? F32_2 : F32_8;
-
- dev_info(&dc->pdev->dev, "Card type is: %d\n", dc->card_type);
-}
-
-static void nozomi_setup_private_data(struct nozomi *dc)
-{
- void __iomem *offset = dc->base_addr + dc->card_type / 2;
- unsigned int i;
-
- dc->reg_fcr = (void __iomem *)(offset + R_FCR);
- dc->reg_iir = (void __iomem *)(offset + R_IIR);
- dc->reg_ier = (void __iomem *)(offset + R_IER);
- dc->last_ier = 0;
- dc->flip = 0;
-
- dc->port[PORT_MDM].token_dl = MDM_DL;
- dc->port[PORT_DIAG].token_dl = DIAG_DL;
- dc->port[PORT_APP1].token_dl = APP1_DL;
- dc->port[PORT_APP2].token_dl = APP2_DL;
-
- for (i = 0; i < MAX_PORT; i++)
- init_waitqueue_head(&dc->port[i].tty_wait);
-}
-
-static ssize_t card_type_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- const struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
-
- return sprintf(buf, "%d\n", dc->card_type);
-}
-static DEVICE_ATTR(card_type, S_IRUGO, card_type_show, NULL);
-
-static ssize_t open_ttys_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- const struct nozomi *dc = pci_get_drvdata(to_pci_dev(dev));
-
- return sprintf(buf, "%u\n", dc->open_ttys);
-}
-static DEVICE_ATTR(open_ttys, S_IRUGO, open_ttys_show, NULL);
-
-static void make_sysfs_files(struct nozomi *dc)
-{
- if (device_create_file(&dc->pdev->dev, &dev_attr_card_type))
- dev_err(&dc->pdev->dev,
- "Could not create sysfs file for card_type\n");
- if (device_create_file(&dc->pdev->dev, &dev_attr_open_ttys))
- dev_err(&dc->pdev->dev,
- "Could not create sysfs file for open_ttys\n");
-}
-
-static void remove_sysfs_files(struct nozomi *dc)
-{
- device_remove_file(&dc->pdev->dev, &dev_attr_card_type);
- device_remove_file(&dc->pdev->dev, &dev_attr_open_ttys);
-}
-
-/* Allocate memory for one device */
-static int __devinit nozomi_card_init(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- resource_size_t start;
- int ret;
- struct nozomi *dc = NULL;
- int ndev_idx;
- int i;
-
- dev_dbg(&pdev->dev, "Init, new card found\n");
-
- for (ndev_idx = 0; ndev_idx < ARRAY_SIZE(ndevs); ndev_idx++)
- if (!ndevs[ndev_idx])
- break;
-
- if (ndev_idx >= ARRAY_SIZE(ndevs)) {
- dev_err(&pdev->dev, "no free tty range for this card left\n");
- ret = -EIO;
- goto err;
- }
-
- dc = kzalloc(sizeof(struct nozomi), GFP_KERNEL);
- if (unlikely(!dc)) {
- dev_err(&pdev->dev, "Could not allocate memory\n");
- ret = -ENOMEM;
- goto err_free;
- }
-
- dc->pdev = pdev;
-
- ret = pci_enable_device(dc->pdev);
- if (ret) {
- dev_err(&pdev->dev, "Failed to enable PCI Device\n");
- goto err_free;
- }
-
- ret = pci_request_regions(dc->pdev, NOZOMI_NAME);
- if (ret) {
- dev_err(&pdev->dev, "I/O address 0x%04x already in use\n",
- (int) /* nozomi_private.io_addr */ 0);
- goto err_disable_device;
- }
-
- start = pci_resource_start(dc->pdev, 0);
- if (start == 0) {
- dev_err(&pdev->dev, "No I/O address for card detected\n");
- ret = -ENODEV;
- goto err_rel_regs;
- }
-
- /* Find out what card type it is */
- nozomi_get_card_type(dc);
-
- dc->base_addr = ioremap_nocache(start, dc->card_type);
- if (!dc->base_addr) {
- dev_err(&pdev->dev, "Unable to map card MMIO\n");
- ret = -ENODEV;
- goto err_rel_regs;
- }
-
- dc->send_buf = kmalloc(SEND_BUF_MAX, GFP_KERNEL);
- if (!dc->send_buf) {
- dev_err(&pdev->dev, "Could not allocate send buffer?\n");
- ret = -ENOMEM;
- goto err_free_sbuf;
- }
-
- for (i = PORT_MDM; i < MAX_PORT; i++) {
- if (kfifo_alloc(&dc->port[i].fifo_ul,
- FIFO_BUFFER_SIZE_UL, GFP_ATOMIC)) {
- dev_err(&pdev->dev,
- "Could not allocate kfifo buffer\n");
- ret = -ENOMEM;
- goto err_free_kfifo;
- }
- }
-
- spin_lock_init(&dc->spin_mutex);
-
- nozomi_setup_private_data(dc);
-
- /* Disable all interrupts */
- dc->last_ier = 0;
- writew(dc->last_ier, dc->reg_ier);
-
- ret = request_irq(pdev->irq, &interrupt_handler, IRQF_SHARED,
- NOZOMI_NAME, dc);
- if (unlikely(ret)) {
- dev_err(&pdev->dev, "can't request irq %d\n", pdev->irq);
- goto err_free_kfifo;
- }
-
- DBG1("base_addr: %p", dc->base_addr);
-
- make_sysfs_files(dc);
-
- dc->index_start = ndev_idx * MAX_PORT;
- ndevs[ndev_idx] = dc;
-
- pci_set_drvdata(pdev, dc);
-
- /* Enable RESET interrupt */
- dc->last_ier = RESET;
- iowrite16(dc->last_ier, dc->reg_ier);
-
- dc->state = NOZOMI_STATE_ENABLED;
-
- for (i = 0; i < MAX_PORT; i++) {
- struct device *tty_dev;
- struct port *port = &dc->port[i];
- port->dc = dc;
- mutex_init(&port->tty_sem);
- tty_port_init(&port->port);
- port->port.ops = &noz_tty_port_ops;
- tty_dev = tty_register_device(ntty_driver, dc->index_start + i,
- &pdev->dev);
-
- if (IS_ERR(tty_dev)) {
- ret = PTR_ERR(tty_dev);
- dev_err(&pdev->dev, "Could not allocate tty?\n");
- goto err_free_tty;
- }
- }
-
- return 0;
-
-err_free_tty:
- for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i)
- tty_unregister_device(ntty_driver, i);
-err_free_kfifo:
- for (i = 0; i < MAX_PORT; i++)
- kfifo_free(&dc->port[i].fifo_ul);
-err_free_sbuf:
- kfree(dc->send_buf);
- iounmap(dc->base_addr);
-err_rel_regs:
- pci_release_regions(pdev);
-err_disable_device:
- pci_disable_device(pdev);
-err_free:
- kfree(dc);
-err:
- return ret;
-}
-
-static void __devexit tty_exit(struct nozomi *dc)
-{
- unsigned int i;
-
- DBG1(" ");
-
- flush_scheduled_work();
-
- for (i = 0; i < MAX_PORT; ++i) {
- struct tty_struct *tty = tty_port_tty_get(&dc->port[i].port);
- if (tty && list_empty(&tty->hangup_work.entry))
- tty_hangup(tty);
- tty_kref_put(tty);
- }
- /* Racy below - surely should wait for scheduled work to be done or
- complete off a hangup method ? */
- while (dc->open_ttys)
- msleep(1);
- for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i)
- tty_unregister_device(ntty_driver, i);
-}
-
-/* Deallocate memory for one device */
-static void __devexit nozomi_card_exit(struct pci_dev *pdev)
-{
- int i;
- struct ctrl_ul ctrl;
- struct nozomi *dc = pci_get_drvdata(pdev);
-
- /* Disable all interrupts */
- dc->last_ier = 0;
- writew(dc->last_ier, dc->reg_ier);
-
- tty_exit(dc);
-
- /* Send 0x0001, command card to resend the reset token. */
- /* This is to get the reset when the module is reloaded. */
- ctrl.port = 0x00;
- ctrl.reserved = 0;
- ctrl.RTS = 0;
- ctrl.DTR = 1;
- DBG1("sending flow control 0x%04X", *((u16 *)&ctrl));
-
- /* Setup dc->reg addresses to we can use defines here */
- write_mem32(dc->port[PORT_CTRL].ul_addr[0], (u32 *)&ctrl, 2);
- writew(CTRL_UL, dc->reg_fcr); /* push the token to the card. */
-
- remove_sysfs_files(dc);
-
- free_irq(pdev->irq, dc);
-
- for (i = 0; i < MAX_PORT; i++)
- kfifo_free(&dc->port[i].fifo_ul);
-
- kfree(dc->send_buf);
-
- iounmap(dc->base_addr);
-
- pci_release_regions(pdev);
-
- pci_disable_device(pdev);
-
- ndevs[dc->index_start / MAX_PORT] = NULL;
-
- kfree(dc);
-}
-
-static void set_rts(const struct tty_struct *tty, int rts)
-{
- struct port *port = get_port_by_tty(tty);
-
- port->ctrl_ul.RTS = rts;
- port->update_flow_control = 1;
- enable_transmit_ul(PORT_CTRL, get_dc_by_tty(tty));
-}
-
-static void set_dtr(const struct tty_struct *tty, int dtr)
-{
- struct port *port = get_port_by_tty(tty);
-
- DBG1("SETTING DTR index: %d, dtr: %d", tty->index, dtr);
-
- port->ctrl_ul.DTR = dtr;
- port->update_flow_control = 1;
- enable_transmit_ul(PORT_CTRL, get_dc_by_tty(tty));
-}
-
-/*
- * ----------------------------------------------------------------------------
- * TTY code
- * ----------------------------------------------------------------------------
- */
-
-static int ntty_install(struct tty_driver *driver, struct tty_struct *tty)
-{
- struct port *port = get_port_by_tty(tty);
- struct nozomi *dc = get_dc_by_tty(tty);
- int ret;
- if (!port || !dc || dc->state != NOZOMI_STATE_READY)
- return -ENODEV;
- ret = tty_init_termios(tty);
- if (ret == 0) {
- tty_driver_kref_get(driver);
- tty->count++;
- tty->driver_data = port;
- driver->ttys[tty->index] = tty;
- }
- return ret;
-}
-
-static void ntty_cleanup(struct tty_struct *tty)
-{
- tty->driver_data = NULL;
-}
-
-static int ntty_activate(struct tty_port *tport, struct tty_struct *tty)
-{
- struct port *port = container_of(tport, struct port, port);
- struct nozomi *dc = port->dc;
- unsigned long flags;
-
- DBG1("open: %d", port->token_dl);
- spin_lock_irqsave(&dc->spin_mutex, flags);
- dc->last_ier = dc->last_ier | port->token_dl;
- writew(dc->last_ier, dc->reg_ier);
- dc->open_ttys++;
- spin_unlock_irqrestore(&dc->spin_mutex, flags);
- printk("noz: activated %d: %p\n", tty->index, tport);
- return 0;
-}
-
-static int ntty_open(struct tty_struct *tty, struct file *filp)
-{
- struct port *port = tty->driver_data;
- return tty_port_open(&port->port, tty, filp);
-}
-
-static void ntty_shutdown(struct tty_port *tport)
-{
- struct port *port = container_of(tport, struct port, port);
- struct nozomi *dc = port->dc;
- unsigned long flags;
-
- DBG1("close: %d", port->token_dl);
- spin_lock_irqsave(&dc->spin_mutex, flags);
- dc->last_ier &= ~(port->token_dl);
- writew(dc->last_ier, dc->reg_ier);
- dc->open_ttys--;
- spin_unlock_irqrestore(&dc->spin_mutex, flags);
- printk("noz: shutdown %p\n", tport);
-}
-
-static void ntty_close(struct tty_struct *tty, struct file *filp)
-{
- struct port *port = tty->driver_data;
- if (port)
- tty_port_close(&port->port, tty, filp);
-}
-
-static void ntty_hangup(struct tty_struct *tty)
-{
- struct port *port = tty->driver_data;
- tty_port_hangup(&port->port);
-}
-
-/*
- * called when the userspace process writes to the tty (/dev/noz*).
- * Data is inserted into a fifo, which is then read and transfered to the modem.
- */
-static int ntty_write(struct tty_struct *tty, const unsigned char *buffer,
- int count)
-{
- int rval = -EINVAL;
- struct nozomi *dc = get_dc_by_tty(tty);
- struct port *port = tty->driver_data;
- unsigned long flags;
-
- /* DBG1( "WRITEx: %d, index = %d", count, index); */
-
- if (!dc || !port)
- return -ENODEV;
-
- mutex_lock(&port->tty_sem);
-
- if (unlikely(!port->port.count)) {
- DBG1(" ");
- goto exit;
- }
-
- rval = kfifo_in(&port->fifo_ul, (unsigned char *)buffer, count);
-
- /* notify card */
- if (unlikely(dc == NULL)) {
- DBG1("No device context?");
- goto exit;
- }
-
- spin_lock_irqsave(&dc->spin_mutex, flags);
- /* CTS is only valid on the modem channel */
- if (port == &(dc->port[PORT_MDM])) {
- if (port->ctrl_dl.CTS) {
- DBG4("Enable interrupt");
- enable_transmit_ul(tty->index % MAX_PORT, dc);
- } else {
- dev_err(&dc->pdev->dev,
- "CTS not active on modem port?\n");
- }
- } else {
- enable_transmit_ul(tty->index % MAX_PORT, dc);
- }
- spin_unlock_irqrestore(&dc->spin_mutex, flags);
-
-exit:
- mutex_unlock(&port->tty_sem);
- return rval;
-}
-
-/*
- * Calculate how much is left in device
- * This method is called by the upper tty layer.
- * #according to sources N_TTY.c it expects a value >= 0 and
- * does not check for negative values.
- *
- * If the port is unplugged report lots of room and let the bits
- * dribble away so we don't block anything.
- */
-static int ntty_write_room(struct tty_struct *tty)
-{
- struct port *port = tty->driver_data;
- int room = 4096;
- const struct nozomi *dc = get_dc_by_tty(tty);
-
- if (dc) {
- mutex_lock(&port->tty_sem);
- if (port->port.count)
- room = kfifo_avail(&port->fifo_ul);
- mutex_unlock(&port->tty_sem);
- }
- return room;
-}
-
-/* Gets io control parameters */
-static int ntty_tiocmget(struct tty_struct *tty, struct file *file)
-{
- const struct port *port = tty->driver_data;
- const struct ctrl_dl *ctrl_dl = &port->ctrl_dl;
- const struct ctrl_ul *ctrl_ul = &port->ctrl_ul;
-
- /* Note: these could change under us but it is not clear this
- matters if so */
- return (ctrl_ul->RTS ? TIOCM_RTS : 0) |
- (ctrl_ul->DTR ? TIOCM_DTR : 0) |
- (ctrl_dl->DCD ? TIOCM_CAR : 0) |
- (ctrl_dl->RI ? TIOCM_RNG : 0) |
- (ctrl_dl->DSR ? TIOCM_DSR : 0) |
- (ctrl_dl->CTS ? TIOCM_CTS : 0);
-}
-
-/* Sets io controls parameters */
-static int ntty_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct nozomi *dc = get_dc_by_tty(tty);
- unsigned long flags;
-
- spin_lock_irqsave(&dc->spin_mutex, flags);
- if (set & TIOCM_RTS)
- set_rts(tty, 1);
- else if (clear & TIOCM_RTS)
- set_rts(tty, 0);
-
- if (set & TIOCM_DTR)
- set_dtr(tty, 1);
- else if (clear & TIOCM_DTR)
- set_dtr(tty, 0);
- spin_unlock_irqrestore(&dc->spin_mutex, flags);
-
- return 0;
-}
-
-static int ntty_cflags_changed(struct port *port, unsigned long flags,
- struct async_icount *cprev)
-{
- const struct async_icount cnow = port->tty_icount;
- int ret;
-
- ret = ((flags & TIOCM_RNG) && (cnow.rng != cprev->rng)) ||
- ((flags & TIOCM_DSR) && (cnow.dsr != cprev->dsr)) ||
- ((flags & TIOCM_CD) && (cnow.dcd != cprev->dcd)) ||
- ((flags & TIOCM_CTS) && (cnow.cts != cprev->cts));
-
- *cprev = cnow;
-
- return ret;
-}
-
-static int ntty_tiocgicount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-{
- struct port *port = tty->driver_data;
- const struct async_icount cnow = port->tty_icount;
-
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->frame = cnow.frame;
- icount->overrun = cnow.overrun;
- icount->parity = cnow.parity;
- icount->brk = cnow.brk;
- icount->buf_overrun = cnow.buf_overrun;
- return 0;
-}
-
-static int ntty_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct port *port = tty->driver_data;
- int rval = -ENOIOCTLCMD;
-
- DBG1("******** IOCTL, cmd: %d", cmd);
-
- switch (cmd) {
- case TIOCMIWAIT: {
- struct async_icount cprev = port->tty_icount;
-
- rval = wait_event_interruptible(port->tty_wait,
- ntty_cflags_changed(port, arg, &cprev));
- break;
- }
- default:
- DBG1("ERR: 0x%08X, %d", cmd, cmd);
- break;
- };
-
- return rval;
-}
-
-/*
- * Called by the upper tty layer when tty buffers are ready
- * to receive data again after a call to throttle.
- */
-static void ntty_unthrottle(struct tty_struct *tty)
-{
- struct nozomi *dc = get_dc_by_tty(tty);
- unsigned long flags;
-
- DBG1("UNTHROTTLE");
- spin_lock_irqsave(&dc->spin_mutex, flags);
- enable_transmit_dl(tty->index % MAX_PORT, dc);
- set_rts(tty, 1);
-
- spin_unlock_irqrestore(&dc->spin_mutex, flags);
-}
-
-/*
- * Called by the upper tty layer when the tty buffers are almost full.
- * The driver should stop send more data.
- */
-static void ntty_throttle(struct tty_struct *tty)
-{
- struct nozomi *dc = get_dc_by_tty(tty);
- unsigned long flags;
-
- DBG1("THROTTLE");
- spin_lock_irqsave(&dc->spin_mutex, flags);
- set_rts(tty, 0);
- spin_unlock_irqrestore(&dc->spin_mutex, flags);
-}
-
-/* Returns number of chars in buffer, called by tty layer */
-static s32 ntty_chars_in_buffer(struct tty_struct *tty)
-{
- struct port *port = tty->driver_data;
- struct nozomi *dc = get_dc_by_tty(tty);
- s32 rval = 0;
-
- if (unlikely(!dc || !port)) {
- goto exit_in_buffer;
- }
-
- if (unlikely(!port->port.count)) {
- dev_err(&dc->pdev->dev, "No tty open?\n");
- goto exit_in_buffer;
- }
-
- rval = kfifo_len(&port->fifo_ul);
-
-exit_in_buffer:
- return rval;
-}
-
-static const struct tty_port_operations noz_tty_port_ops = {
- .activate = ntty_activate,
- .shutdown = ntty_shutdown,
-};
-
-static const struct tty_operations tty_ops = {
- .ioctl = ntty_ioctl,
- .open = ntty_open,
- .close = ntty_close,
- .hangup = ntty_hangup,
- .write = ntty_write,
- .write_room = ntty_write_room,
- .unthrottle = ntty_unthrottle,
- .throttle = ntty_throttle,
- .chars_in_buffer = ntty_chars_in_buffer,
- .tiocmget = ntty_tiocmget,
- .tiocmset = ntty_tiocmset,
- .get_icount = ntty_tiocgicount,
- .install = ntty_install,
- .cleanup = ntty_cleanup,
-};
-
-/* Module initialization */
-static struct pci_driver nozomi_driver = {
- .name = NOZOMI_NAME,
- .id_table = nozomi_pci_tbl,
- .probe = nozomi_card_init,
- .remove = __devexit_p(nozomi_card_exit),
-};
-
-static __init int nozomi_init(void)
-{
- int ret;
-
- printk(KERN_INFO "Initializing %s\n", VERSION_STRING);
-
- ntty_driver = alloc_tty_driver(NTTY_TTY_MAXMINORS);
- if (!ntty_driver)
- return -ENOMEM;
-
- ntty_driver->owner = THIS_MODULE;
- ntty_driver->driver_name = NOZOMI_NAME_TTY;
- ntty_driver->name = "noz";
- ntty_driver->major = 0;
- ntty_driver->type = TTY_DRIVER_TYPE_SERIAL;
- ntty_driver->subtype = SERIAL_TYPE_NORMAL;
- ntty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- ntty_driver->init_termios = tty_std_termios;
- ntty_driver->init_termios.c_cflag = B115200 | CS8 | CREAD | \
- HUPCL | CLOCAL;
- ntty_driver->init_termios.c_ispeed = 115200;
- ntty_driver->init_termios.c_ospeed = 115200;
- tty_set_operations(ntty_driver, &tty_ops);
-
- ret = tty_register_driver(ntty_driver);
- if (ret) {
- printk(KERN_ERR "Nozomi: failed to register ntty driver\n");
- goto free_tty;
- }
-
- ret = pci_register_driver(&nozomi_driver);
- if (ret) {
- printk(KERN_ERR "Nozomi: can't register pci driver\n");
- goto unr_tty;
- }
-
- return 0;
-unr_tty:
- tty_unregister_driver(ntty_driver);
-free_tty:
- put_tty_driver(ntty_driver);
- return ret;
-}
-
-static __exit void nozomi_exit(void)
-{
- printk(KERN_INFO "Unloading %s\n", DRIVER_DESC);
- pci_unregister_driver(&nozomi_driver);
- tty_unregister_driver(ntty_driver);
- put_tty_driver(ntty_driver);
-}
-
-module_init(nozomi_init);
-module_exit(nozomi_exit);
-
-module_param(debug, int, S_IRUGO | S_IWUSR);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/char/pcmcia/Makefile b/drivers/char/pcmcia/Makefile
index be8f287aa39..0aae20985d5 100644
--- a/drivers/char/pcmcia/Makefile
+++ b/drivers/char/pcmcia/Makefile
@@ -4,8 +4,6 @@
# Makefile for the Linux PCMCIA char device drivers.
#
-obj-y += ipwireless/
-
obj-$(CONFIG_SYNCLINK_CS) += synclink_cs.o
obj-$(CONFIG_CARDMAN_4000) += cm4000_cs.o
obj-$(CONFIG_CARDMAN_4040) += cm4040_cs.o
diff --git a/drivers/char/pcmcia/ipwireless/Makefile b/drivers/char/pcmcia/ipwireless/Makefile
deleted file mode 100644
index db80873d7f2..00000000000
--- a/drivers/char/pcmcia/ipwireless/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# drivers/char/pcmcia/ipwireless/Makefile
-#
-# Makefile for the IPWireless driver
-#
-
-obj-$(CONFIG_IPWIRELESS) += ipwireless.o
-
-ipwireless-y := hardware.o main.o network.o tty.o
-
diff --git a/drivers/char/pcmcia/ipwireless/hardware.c b/drivers/char/pcmcia/ipwireless/hardware.c
deleted file mode 100644
index 0aeb5a38d29..00000000000
--- a/drivers/char/pcmcia/ipwireless/hardware.c
+++ /dev/null
@@ -1,1764 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/slab.h>
-
-#include "hardware.h"
-#include "setup_protocol.h"
-#include "network.h"
-#include "main.h"
-
-static void ipw_send_setup_packet(struct ipw_hardware *hw);
-static void handle_received_SETUP_packet(struct ipw_hardware *ipw,
- unsigned int address,
- const unsigned char *data, int len,
- int is_last);
-static void ipwireless_setup_timer(unsigned long data);
-static void handle_received_CTRL_packet(struct ipw_hardware *hw,
- unsigned int channel_idx, const unsigned char *data, int len);
-
-/*#define TIMING_DIAGNOSTICS*/
-
-#ifdef TIMING_DIAGNOSTICS
-
-static struct timing_stats {
- unsigned long last_report_time;
- unsigned long read_time;
- unsigned long write_time;
- unsigned long read_bytes;
- unsigned long write_bytes;
- unsigned long start_time;
-};
-
-static void start_timing(void)
-{
- timing_stats.start_time = jiffies;
-}
-
-static void end_read_timing(unsigned length)
-{
- timing_stats.read_time += (jiffies - start_time);
- timing_stats.read_bytes += length + 2;
- report_timing();
-}
-
-static void end_write_timing(unsigned length)
-{
- timing_stats.write_time += (jiffies - start_time);
- timing_stats.write_bytes += length + 2;
- report_timing();
-}
-
-static void report_timing(void)
-{
- unsigned long since = jiffies - timing_stats.last_report_time;
-
- /* If it's been more than one second... */
- if (since >= HZ) {
- int first = (timing_stats.last_report_time == 0);
-
- timing_stats.last_report_time = jiffies;
- if (!first)
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": %u us elapsed - read %lu bytes in %u us, wrote %lu bytes in %u us\n",
- jiffies_to_usecs(since),
- timing_stats.read_bytes,
- jiffies_to_usecs(timing_stats.read_time),
- timing_stats.write_bytes,
- jiffies_to_usecs(timing_stats.write_time));
-
- timing_stats.read_time = 0;
- timing_stats.write_time = 0;
- timing_stats.read_bytes = 0;
- timing_stats.write_bytes = 0;
- }
-}
-#else
-static void start_timing(void) { }
-static void end_read_timing(unsigned length) { }
-static void end_write_timing(unsigned length) { }
-#endif
-
-/* Imported IPW definitions */
-
-#define LL_MTU_V1 318
-#define LL_MTU_V2 250
-#define LL_MTU_MAX (LL_MTU_V1 > LL_MTU_V2 ? LL_MTU_V1 : LL_MTU_V2)
-
-#define PRIO_DATA 2
-#define PRIO_CTRL 1
-#define PRIO_SETUP 0
-
-/* Addresses */
-#define ADDR_SETUP_PROT 0
-
-/* Protocol ids */
-enum {
- /* Identifier for the Com Data protocol */
- TL_PROTOCOLID_COM_DATA = 0,
-
- /* Identifier for the Com Control protocol */
- TL_PROTOCOLID_COM_CTRL = 1,
-
- /* Identifier for the Setup protocol */
- TL_PROTOCOLID_SETUP = 2
-};
-
-/* Number of bytes in NL packet header (cannot do
- * sizeof(nl_packet_header) since it's a bitfield) */
-#define NL_FIRST_PACKET_HEADER_SIZE 3
-
-/* Number of bytes in NL packet header (cannot do
- * sizeof(nl_packet_header) since it's a bitfield) */
-#define NL_FOLLOWING_PACKET_HEADER_SIZE 1
-
-struct nl_first_packet_header {
- unsigned char protocol:3;
- unsigned char address:3;
- unsigned char packet_rank:2;
- unsigned char length_lsb;
- unsigned char length_msb;
-};
-
-struct nl_packet_header {
- unsigned char protocol:3;
- unsigned char address:3;
- unsigned char packet_rank:2;
-};
-
-/* Value of 'packet_rank' above */
-#define NL_INTERMEDIATE_PACKET 0x0
-#define NL_LAST_PACKET 0x1
-#define NL_FIRST_PACKET 0x2
-
-union nl_packet {
- /* Network packet header of the first packet (a special case) */
- struct nl_first_packet_header hdr_first;
- /* Network packet header of the following packets (if any) */
- struct nl_packet_header hdr;
- /* Complete network packet (header + data) */
- unsigned char rawpkt[LL_MTU_MAX];
-} __attribute__ ((__packed__));
-
-#define HW_VERSION_UNKNOWN -1
-#define HW_VERSION_1 1
-#define HW_VERSION_2 2
-
-/* IPW I/O ports */
-#define IOIER 0x00 /* Interrupt Enable Register */
-#define IOIR 0x02 /* Interrupt Source/ACK register */
-#define IODCR 0x04 /* Data Control Register */
-#define IODRR 0x06 /* Data Read Register */
-#define IODWR 0x08 /* Data Write Register */
-#define IOESR 0x0A /* Embedded Driver Status Register */
-#define IORXR 0x0C /* Rx Fifo Register (Host to Embedded) */
-#define IOTXR 0x0E /* Tx Fifo Register (Embedded to Host) */
-
-/* I/O ports and bit definitions for version 1 of the hardware */
-
-/* IER bits*/
-#define IER_RXENABLED 0x1
-#define IER_TXENABLED 0x2
-
-/* ISR bits */
-#define IR_RXINTR 0x1
-#define IR_TXINTR 0x2
-
-/* DCR bits */
-#define DCR_RXDONE 0x1
-#define DCR_TXDONE 0x2
-#define DCR_RXRESET 0x4
-#define DCR_TXRESET 0x8
-
-/* I/O ports and bit definitions for version 2 of the hardware */
-
-struct MEMCCR {
- unsigned short reg_config_option; /* PCCOR: Configuration Option Register */
- unsigned short reg_config_and_status; /* PCCSR: Configuration and Status Register */
- unsigned short reg_pin_replacement; /* PCPRR: Pin Replacemant Register */
- unsigned short reg_socket_and_copy; /* PCSCR: Socket and Copy Register */
- unsigned short reg_ext_status; /* PCESR: Extendend Status Register */
- unsigned short reg_io_base; /* PCIOB: I/O Base Register */
-};
-
-struct MEMINFREG {
- unsigned short memreg_tx_old; /* TX Register (R/W) */
- unsigned short pad1;
- unsigned short memreg_rx_done; /* RXDone Register (R/W) */
- unsigned short pad2;
- unsigned short memreg_rx; /* RX Register (R/W) */
- unsigned short pad3;
- unsigned short memreg_pc_interrupt_ack; /* PC intr Ack Register (W) */
- unsigned short pad4;
- unsigned long memreg_card_present;/* Mask for Host to check (R) for
- * CARD_PRESENT_VALUE */
- unsigned short memreg_tx_new; /* TX2 (new) Register (R/W) */
-};
-
-#define CARD_PRESENT_VALUE (0xBEEFCAFEUL)
-
-#define MEMTX_TX 0x0001
-#define MEMRX_RX 0x0001
-#define MEMRX_RX_DONE 0x0001
-#define MEMRX_PCINTACKK 0x0001
-
-#define NL_NUM_OF_PRIORITIES 3
-#define NL_NUM_OF_PROTOCOLS 3
-#define NL_NUM_OF_ADDRESSES NO_OF_IPW_CHANNELS
-
-struct ipw_hardware {
- unsigned int base_port;
- short hw_version;
- unsigned short ll_mtu;
- spinlock_t lock;
-
- int initializing;
- int init_loops;
- struct timer_list setup_timer;
-
- /* Flag if hw is ready to send next packet */
- int tx_ready;
- /* Count of pending packets to be sent */
- int tx_queued;
- struct list_head tx_queue[NL_NUM_OF_PRIORITIES];
-
- int rx_bytes_queued;
- struct list_head rx_queue;
- /* Pool of rx_packet structures that are not currently used. */
- struct list_head rx_pool;
- int rx_pool_size;
- /* True if reception of data is blocked while userspace processes it. */
- int blocking_rx;
- /* True if there is RX data ready on the hardware. */
- int rx_ready;
- unsigned short last_memtx_serial;
- /*
- * Newer versions of the V2 card firmware send serial numbers in the
- * MemTX register. 'serial_number_detected' is set true when we detect
- * a non-zero serial number (indicating the new firmware). Thereafter,
- * the driver can safely ignore the Timer Recovery re-sends to avoid
- * out-of-sync problems.
- */
- int serial_number_detected;
- struct work_struct work_rx;
-
- /* True if we are to send the set-up data to the hardware. */
- int to_setup;
-
- /* Card has been removed */
- int removed;
- /* Saved irq value when we disable the interrupt. */
- int irq;
- /* True if this driver is shutting down. */
- int shutting_down;
- /* Modem control lines */
- unsigned int control_lines[NL_NUM_OF_ADDRESSES];
- struct ipw_rx_packet *packet_assembler[NL_NUM_OF_ADDRESSES];
-
- struct tasklet_struct tasklet;
-
- /* The handle for the network layer, for the sending of events to it. */
- struct ipw_network *network;
- struct MEMINFREG __iomem *memory_info_regs;
- struct MEMCCR __iomem *memregs_CCR;
- void (*reboot_callback) (void *data);
- void *reboot_callback_data;
-
- unsigned short __iomem *memreg_tx;
-};
-
-/*
- * Packet info structure for tx packets.
- * Note: not all the fields defined here are required for all protocols
- */
-struct ipw_tx_packet {
- struct list_head queue;
- /* channel idx + 1 */
- unsigned char dest_addr;
- /* SETUP, CTRL or DATA */
- unsigned char protocol;
- /* Length of data block, which starts at the end of this structure */
- unsigned short length;
- /* Sending state */
- /* Offset of where we've sent up to so far */
- unsigned long offset;
- /* Count of packet fragments, starting at 0 */
- int fragment_count;
-
- /* Called after packet is sent and before is freed */
- void (*packet_callback) (void *cb_data, unsigned int packet_length);
- void *callback_data;
-};
-
-/* Signals from DTE */
-#define COMCTRL_RTS 0
-#define COMCTRL_DTR 1
-
-/* Signals from DCE */
-#define COMCTRL_CTS 2
-#define COMCTRL_DCD 3
-#define COMCTRL_DSR 4
-#define COMCTRL_RI 5
-
-struct ipw_control_packet_body {
- /* DTE signal or DCE signal */
- unsigned char sig_no;
- /* 0: set signal, 1: clear signal */
- unsigned char value;
-} __attribute__ ((__packed__));
-
-struct ipw_control_packet {
- struct ipw_tx_packet header;
- struct ipw_control_packet_body body;
-};
-
-struct ipw_rx_packet {
- struct list_head queue;
- unsigned int capacity;
- unsigned int length;
- unsigned int protocol;
- unsigned int channel_idx;
-};
-
-static char *data_type(const unsigned char *buf, unsigned length)
-{
- struct nl_packet_header *hdr = (struct nl_packet_header *) buf;
-
- if (length == 0)
- return " ";
-
- if (hdr->packet_rank & NL_FIRST_PACKET) {
- switch (hdr->protocol) {
- case TL_PROTOCOLID_COM_DATA: return "DATA ";
- case TL_PROTOCOLID_COM_CTRL: return "CTRL ";
- case TL_PROTOCOLID_SETUP: return "SETUP";
- default: return "???? ";
- }
- } else
- return " ";
-}
-
-#define DUMP_MAX_BYTES 64
-
-static void dump_data_bytes(const char *type, const unsigned char *data,
- unsigned length)
-{
- char prefix[56];
-
- sprintf(prefix, IPWIRELESS_PCCARD_NAME ": %s %s ",
- type, data_type(data, length));
- print_hex_dump_bytes(prefix, 0, (void *)data,
- length < DUMP_MAX_BYTES ? length : DUMP_MAX_BYTES);
-}
-
-static void swap_packet_bitfield_to_le(unsigned char *data)
-{
-#ifdef __BIG_ENDIAN_BITFIELD
- unsigned char tmp = *data, ret = 0;
-
- /*
- * transform bits from aa.bbb.ccc to ccc.bbb.aa
- */
- ret |= tmp & 0xc0 >> 6;
- ret |= tmp & 0x38 >> 1;
- ret |= tmp & 0x07 << 5;
- *data = ret & 0xff;
-#endif
-}
-
-static void swap_packet_bitfield_from_le(unsigned char *data)
-{
-#ifdef __BIG_ENDIAN_BITFIELD
- unsigned char tmp = *data, ret = 0;
-
- /*
- * transform bits from ccc.bbb.aa to aa.bbb.ccc
- */
- ret |= tmp & 0xe0 >> 5;
- ret |= tmp & 0x1c << 1;
- ret |= tmp & 0x03 << 6;
- *data = ret & 0xff;
-#endif
-}
-
-static void do_send_fragment(struct ipw_hardware *hw, unsigned char *data,
- unsigned length)
-{
- unsigned i;
- unsigned long flags;
-
- start_timing();
- BUG_ON(length > hw->ll_mtu);
-
- if (ipwireless_debug)
- dump_data_bytes("send", data, length);
-
- spin_lock_irqsave(&hw->lock, flags);
-
- hw->tx_ready = 0;
- swap_packet_bitfield_to_le(data);
-
- if (hw->hw_version == HW_VERSION_1) {
- outw((unsigned short) length, hw->base_port + IODWR);
-
- for (i = 0; i < length; i += 2) {
- unsigned short d = data[i];
- __le16 raw_data;
-
- if (i + 1 < length)
- d |= data[i + 1] << 8;
- raw_data = cpu_to_le16(d);
- outw(raw_data, hw->base_port + IODWR);
- }
-
- outw(DCR_TXDONE, hw->base_port + IODCR);
- } else if (hw->hw_version == HW_VERSION_2) {
- outw((unsigned short) length, hw->base_port);
-
- for (i = 0; i < length; i += 2) {
- unsigned short d = data[i];
- __le16 raw_data;
-
- if (i + 1 < length)
- d |= data[i + 1] << 8;
- raw_data = cpu_to_le16(d);
- outw(raw_data, hw->base_port);
- }
- while ((i & 3) != 2) {
- outw((unsigned short) 0xDEAD, hw->base_port);
- i += 2;
- }
- writew(MEMRX_RX, &hw->memory_info_regs->memreg_rx);
- }
-
- spin_unlock_irqrestore(&hw->lock, flags);
-
- end_write_timing(length);
-}
-
-static void do_send_packet(struct ipw_hardware *hw, struct ipw_tx_packet *packet)
-{
- unsigned short fragment_data_len;
- unsigned short data_left = packet->length - packet->offset;
- unsigned short header_size;
- union nl_packet pkt;
-
- header_size =
- (packet->fragment_count == 0)
- ? NL_FIRST_PACKET_HEADER_SIZE
- : NL_FOLLOWING_PACKET_HEADER_SIZE;
- fragment_data_len = hw->ll_mtu - header_size;
- if (data_left < fragment_data_len)
- fragment_data_len = data_left;
-
- /*
- * hdr_first is now in machine bitfield order, which will be swapped
- * to le just before it goes to hw
- */
- pkt.hdr_first.protocol = packet->protocol;
- pkt.hdr_first.address = packet->dest_addr;
- pkt.hdr_first.packet_rank = 0;
-
- /* First packet? */
- if (packet->fragment_count == 0) {
- pkt.hdr_first.packet_rank |= NL_FIRST_PACKET;
- pkt.hdr_first.length_lsb = (unsigned char) packet->length;
- pkt.hdr_first.length_msb =
- (unsigned char) (packet->length >> 8);
- }
-
- memcpy(pkt.rawpkt + header_size,
- ((unsigned char *) packet) + sizeof(struct ipw_tx_packet) +
- packet->offset, fragment_data_len);
- packet->offset += fragment_data_len;
- packet->fragment_count++;
-
- /* Last packet? (May also be first packet.) */
- if (packet->offset == packet->length)
- pkt.hdr_first.packet_rank |= NL_LAST_PACKET;
- do_send_fragment(hw, pkt.rawpkt, header_size + fragment_data_len);
-
- /* If this packet has unsent data, then re-queue it. */
- if (packet->offset < packet->length) {
- /*
- * Re-queue it at the head of the highest priority queue so
- * it goes before all other packets
- */
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- list_add(&packet->queue, &hw->tx_queue[0]);
- hw->tx_queued++;
- spin_unlock_irqrestore(&hw->lock, flags);
- } else {
- if (packet->packet_callback)
- packet->packet_callback(packet->callback_data,
- packet->length);
- kfree(packet);
- }
-}
-
-static void ipw_setup_hardware(struct ipw_hardware *hw)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- if (hw->hw_version == HW_VERSION_1) {
- /* Reset RX FIFO */
- outw(DCR_RXRESET, hw->base_port + IODCR);
- /* SB: Reset TX FIFO */
- outw(DCR_TXRESET, hw->base_port + IODCR);
-
- /* Enable TX and RX interrupts. */
- outw(IER_TXENABLED | IER_RXENABLED, hw->base_port + IOIER);
- } else {
- /*
- * Set INTRACK bit (bit 0), which means we must explicitly
- * acknowledge interrupts by clearing bit 2 of reg_config_and_status.
- */
- unsigned short csr = readw(&hw->memregs_CCR->reg_config_and_status);
-
- csr |= 1;
- writew(csr, &hw->memregs_CCR->reg_config_and_status);
- }
- spin_unlock_irqrestore(&hw->lock, flags);
-}
-
-/*
- * If 'packet' is NULL, then this function allocates a new packet, setting its
- * length to 0 and ensuring it has the specified minimum amount of free space.
- *
- * If 'packet' is not NULL, then this function enlarges it if it doesn't
- * have the specified minimum amount of free space.
- *
- */
-static struct ipw_rx_packet *pool_allocate(struct ipw_hardware *hw,
- struct ipw_rx_packet *packet,
- int minimum_free_space)
-{
-
- if (!packet) {
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- if (!list_empty(&hw->rx_pool)) {
- packet = list_first_entry(&hw->rx_pool,
- struct ipw_rx_packet, queue);
- hw->rx_pool_size--;
- spin_unlock_irqrestore(&hw->lock, flags);
- list_del(&packet->queue);
- } else {
- const int min_capacity =
- ipwireless_ppp_mru(hw->network) + 2;
- int new_capacity;
-
- spin_unlock_irqrestore(&hw->lock, flags);
- new_capacity =
- (minimum_free_space > min_capacity
- ? minimum_free_space
- : min_capacity);
- packet = kmalloc(sizeof(struct ipw_rx_packet)
- + new_capacity, GFP_ATOMIC);
- if (!packet)
- return NULL;
- packet->capacity = new_capacity;
- }
- packet->length = 0;
- }
-
- if (packet->length + minimum_free_space > packet->capacity) {
- struct ipw_rx_packet *old_packet = packet;
-
- packet = kmalloc(sizeof(struct ipw_rx_packet) +
- old_packet->length + minimum_free_space,
- GFP_ATOMIC);
- if (!packet) {
- kfree(old_packet);
- return NULL;
- }
- memcpy(packet, old_packet,
- sizeof(struct ipw_rx_packet)
- + old_packet->length);
- packet->capacity = old_packet->length + minimum_free_space;
- kfree(old_packet);
- }
-
- return packet;
-}
-
-static void pool_free(struct ipw_hardware *hw, struct ipw_rx_packet *packet)
-{
- if (hw->rx_pool_size > 6)
- kfree(packet);
- else {
- hw->rx_pool_size++;
- list_add(&packet->queue, &hw->rx_pool);
- }
-}
-
-static void queue_received_packet(struct ipw_hardware *hw,
- unsigned int protocol,
- unsigned int address,
- const unsigned char *data, int length,
- int is_last)
-{
- unsigned int channel_idx = address - 1;
- struct ipw_rx_packet *packet = NULL;
- unsigned long flags;
-
- /* Discard packet if channel index is out of range. */
- if (channel_idx >= NL_NUM_OF_ADDRESSES) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": data packet has bad address %u\n", address);
- return;
- }
-
- /*
- * ->packet_assembler is safe to touch unlocked, this is the only place
- */
- if (protocol == TL_PROTOCOLID_COM_DATA) {
- struct ipw_rx_packet **assem =
- &hw->packet_assembler[channel_idx];
-
- /*
- * Create a new packet, or assembler already contains one
- * enlarge it by 'length' bytes.
- */
- (*assem) = pool_allocate(hw, *assem, length);
- if (!(*assem)) {
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": no memory for incomming data packet, dropped!\n");
- return;
- }
- (*assem)->protocol = protocol;
- (*assem)->channel_idx = channel_idx;
-
- /* Append this packet data onto existing data. */
- memcpy((unsigned char *)(*assem) +
- sizeof(struct ipw_rx_packet)
- + (*assem)->length, data, length);
- (*assem)->length += length;
- if (is_last) {
- packet = *assem;
- *assem = NULL;
- /* Count queued DATA bytes only */
- spin_lock_irqsave(&hw->lock, flags);
- hw->rx_bytes_queued += packet->length;
- spin_unlock_irqrestore(&hw->lock, flags);
- }
- } else {
- /* If it's a CTRL packet, don't assemble, just queue it. */
- packet = pool_allocate(hw, NULL, length);
- if (!packet) {
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": no memory for incomming ctrl packet, dropped!\n");
- return;
- }
- packet->protocol = protocol;
- packet->channel_idx = channel_idx;
- memcpy((unsigned char *)packet + sizeof(struct ipw_rx_packet),
- data, length);
- packet->length = length;
- }
-
- /*
- * If this is the last packet, then send the assembled packet on to the
- * network layer.
- */
- if (packet) {
- spin_lock_irqsave(&hw->lock, flags);
- list_add_tail(&packet->queue, &hw->rx_queue);
- /* Block reception of incoming packets if queue is full. */
- hw->blocking_rx =
- (hw->rx_bytes_queued >= IPWIRELESS_RX_QUEUE_SIZE);
-
- spin_unlock_irqrestore(&hw->lock, flags);
- schedule_work(&hw->work_rx);
- }
-}
-
-/*
- * Workqueue callback
- */
-static void ipw_receive_data_work(struct work_struct *work_rx)
-{
- struct ipw_hardware *hw =
- container_of(work_rx, struct ipw_hardware, work_rx);
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- while (!list_empty(&hw->rx_queue)) {
- struct ipw_rx_packet *packet =
- list_first_entry(&hw->rx_queue,
- struct ipw_rx_packet, queue);
-
- if (hw->shutting_down)
- break;
- list_del(&packet->queue);
-
- /*
- * Note: ipwireless_network_packet_received must be called in a
- * process context (i.e. via schedule_work) because the tty
- * output code can sleep in the tty_flip_buffer_push call.
- */
- if (packet->protocol == TL_PROTOCOLID_COM_DATA) {
- if (hw->network != NULL) {
- /* If the network hasn't been disconnected. */
- spin_unlock_irqrestore(&hw->lock, flags);
- /*
- * This must run unlocked due to tty processing
- * and mutex locking
- */
- ipwireless_network_packet_received(
- hw->network,
- packet->channel_idx,
- (unsigned char *)packet
- + sizeof(struct ipw_rx_packet),
- packet->length);
- spin_lock_irqsave(&hw->lock, flags);
- }
- /* Count queued DATA bytes only */
- hw->rx_bytes_queued -= packet->length;
- } else {
- /*
- * This is safe to be called locked, callchain does
- * not block
- */
- handle_received_CTRL_packet(hw, packet->channel_idx,
- (unsigned char *)packet
- + sizeof(struct ipw_rx_packet),
- packet->length);
- }
- pool_free(hw, packet);
- /*
- * Unblock reception of incoming packets if queue is no longer
- * full.
- */
- hw->blocking_rx =
- hw->rx_bytes_queued >= IPWIRELESS_RX_QUEUE_SIZE;
- if (hw->shutting_down)
- break;
- }
- spin_unlock_irqrestore(&hw->lock, flags);
-}
-
-static void handle_received_CTRL_packet(struct ipw_hardware *hw,
- unsigned int channel_idx,
- const unsigned char *data, int len)
-{
- const struct ipw_control_packet_body *body =
- (const struct ipw_control_packet_body *) data;
- unsigned int changed_mask;
-
- if (len != sizeof(struct ipw_control_packet_body)) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": control packet was %d bytes - wrong size!\n",
- len);
- return;
- }
-
- switch (body->sig_no) {
- case COMCTRL_CTS:
- changed_mask = IPW_CONTROL_LINE_CTS;
- break;
- case COMCTRL_DCD:
- changed_mask = IPW_CONTROL_LINE_DCD;
- break;
- case COMCTRL_DSR:
- changed_mask = IPW_CONTROL_LINE_DSR;
- break;
- case COMCTRL_RI:
- changed_mask = IPW_CONTROL_LINE_RI;
- break;
- default:
- changed_mask = 0;
- }
-
- if (changed_mask != 0) {
- if (body->value)
- hw->control_lines[channel_idx] |= changed_mask;
- else
- hw->control_lines[channel_idx] &= ~changed_mask;
- if (hw->network)
- ipwireless_network_notify_control_line_change(
- hw->network,
- channel_idx,
- hw->control_lines[channel_idx],
- changed_mask);
- }
-}
-
-static void handle_received_packet(struct ipw_hardware *hw,
- const union nl_packet *packet,
- unsigned short len)
-{
- unsigned int protocol = packet->hdr.protocol;
- unsigned int address = packet->hdr.address;
- unsigned int header_length;
- const unsigned char *data;
- unsigned int data_len;
- int is_last = packet->hdr.packet_rank & NL_LAST_PACKET;
-
- if (packet->hdr.packet_rank & NL_FIRST_PACKET)
- header_length = NL_FIRST_PACKET_HEADER_SIZE;
- else
- header_length = NL_FOLLOWING_PACKET_HEADER_SIZE;
-
- data = packet->rawpkt + header_length;
- data_len = len - header_length;
- switch (protocol) {
- case TL_PROTOCOLID_COM_DATA:
- case TL_PROTOCOLID_COM_CTRL:
- queue_received_packet(hw, protocol, address, data, data_len,
- is_last);
- break;
- case TL_PROTOCOLID_SETUP:
- handle_received_SETUP_packet(hw, address, data, data_len,
- is_last);
- break;
- }
-}
-
-static void acknowledge_data_read(struct ipw_hardware *hw)
-{
- if (hw->hw_version == HW_VERSION_1)
- outw(DCR_RXDONE, hw->base_port + IODCR);
- else
- writew(MEMRX_PCINTACKK,
- &hw->memory_info_regs->memreg_pc_interrupt_ack);
-}
-
-/*
- * Retrieve a packet from the IPW hardware.
- */
-static void do_receive_packet(struct ipw_hardware *hw)
-{
- unsigned len;
- unsigned i;
- unsigned char pkt[LL_MTU_MAX];
-
- start_timing();
-
- if (hw->hw_version == HW_VERSION_1) {
- len = inw(hw->base_port + IODRR);
- if (len > hw->ll_mtu) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": received a packet of %u bytes - longer than the MTU!\n", len);
- outw(DCR_RXDONE | DCR_RXRESET, hw->base_port + IODCR);
- return;
- }
-
- for (i = 0; i < len; i += 2) {
- __le16 raw_data = inw(hw->base_port + IODRR);
- unsigned short data = le16_to_cpu(raw_data);
-
- pkt[i] = (unsigned char) data;
- pkt[i + 1] = (unsigned char) (data >> 8);
- }
- } else {
- len = inw(hw->base_port);
- if (len > hw->ll_mtu) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": received a packet of %u bytes - longer than the MTU!\n", len);
- writew(MEMRX_PCINTACKK,
- &hw->memory_info_regs->memreg_pc_interrupt_ack);
- return;
- }
-
- for (i = 0; i < len; i += 2) {
- __le16 raw_data = inw(hw->base_port);
- unsigned short data = le16_to_cpu(raw_data);
-
- pkt[i] = (unsigned char) data;
- pkt[i + 1] = (unsigned char) (data >> 8);
- }
-
- while ((i & 3) != 2) {
- inw(hw->base_port);
- i += 2;
- }
- }
-
- acknowledge_data_read(hw);
-
- swap_packet_bitfield_from_le(pkt);
-
- if (ipwireless_debug)
- dump_data_bytes("recv", pkt, len);
-
- handle_received_packet(hw, (union nl_packet *) pkt, len);
-
- end_read_timing(len);
-}
-
-static int get_current_packet_priority(struct ipw_hardware *hw)
-{
- /*
- * If we're initializing, don't send anything of higher priority than
- * PRIO_SETUP. The network layer therefore need not care about
- * hardware initialization - any of its stuff will simply be queued
- * until setup is complete.
- */
- return (hw->to_setup || hw->initializing
- ? PRIO_SETUP + 1 : NL_NUM_OF_PRIORITIES);
-}
-
-/*
- * return 1 if something has been received from hw
- */
-static int get_packets_from_hw(struct ipw_hardware *hw)
-{
- int received = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- while (hw->rx_ready && !hw->blocking_rx) {
- received = 1;
- hw->rx_ready--;
- spin_unlock_irqrestore(&hw->lock, flags);
-
- do_receive_packet(hw);
-
- spin_lock_irqsave(&hw->lock, flags);
- }
- spin_unlock_irqrestore(&hw->lock, flags);
-
- return received;
-}
-
-/*
- * Send pending packet up to given priority, prioritize SETUP data until
- * hardware is fully setup.
- *
- * return 1 if more packets can be sent
- */
-static int send_pending_packet(struct ipw_hardware *hw, int priority_limit)
-{
- int more_to_send = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- if (hw->tx_queued && hw->tx_ready) {
- int priority;
- struct ipw_tx_packet *packet = NULL;
-
- /* Pick a packet */
- for (priority = 0; priority < priority_limit; priority++) {
- if (!list_empty(&hw->tx_queue[priority])) {
- packet = list_first_entry(
- &hw->tx_queue[priority],
- struct ipw_tx_packet,
- queue);
-
- hw->tx_queued--;
- list_del(&packet->queue);
-
- break;
- }
- }
- if (!packet) {
- hw->tx_queued = 0;
- spin_unlock_irqrestore(&hw->lock, flags);
- return 0;
- }
-
- spin_unlock_irqrestore(&hw->lock, flags);
-
- /* Send */
- do_send_packet(hw, packet);
-
- /* Check if more to send */
- spin_lock_irqsave(&hw->lock, flags);
- for (priority = 0; priority < priority_limit; priority++)
- if (!list_empty(&hw->tx_queue[priority])) {
- more_to_send = 1;
- break;
- }
-
- if (!more_to_send)
- hw->tx_queued = 0;
- }
- spin_unlock_irqrestore(&hw->lock, flags);
-
- return more_to_send;
-}
-
-/*
- * Send and receive all queued packets.
- */
-static void ipwireless_do_tasklet(unsigned long hw_)
-{
- struct ipw_hardware *hw = (struct ipw_hardware *) hw_;
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- if (hw->shutting_down) {
- spin_unlock_irqrestore(&hw->lock, flags);
- return;
- }
-
- if (hw->to_setup == 1) {
- /*
- * Initial setup data sent to hardware
- */
- hw->to_setup = 2;
- spin_unlock_irqrestore(&hw->lock, flags);
-
- ipw_setup_hardware(hw);
- ipw_send_setup_packet(hw);
-
- send_pending_packet(hw, PRIO_SETUP + 1);
- get_packets_from_hw(hw);
- } else {
- int priority_limit = get_current_packet_priority(hw);
- int again;
-
- spin_unlock_irqrestore(&hw->lock, flags);
-
- do {
- again = send_pending_packet(hw, priority_limit);
- again |= get_packets_from_hw(hw);
- } while (again);
- }
-}
-
-/*
- * return true if the card is physically present.
- */
-static int is_card_present(struct ipw_hardware *hw)
-{
- if (hw->hw_version == HW_VERSION_1)
- return inw(hw->base_port + IOIR) != 0xFFFF;
- else
- return readl(&hw->memory_info_regs->memreg_card_present) ==
- CARD_PRESENT_VALUE;
-}
-
-static irqreturn_t ipwireless_handle_v1_interrupt(int irq,
- struct ipw_hardware *hw)
-{
- unsigned short irqn;
-
- irqn = inw(hw->base_port + IOIR);
-
- /* Check if card is present */
- if (irqn == 0xFFFF)
- return IRQ_NONE;
- else if (irqn != 0) {
- unsigned short ack = 0;
- unsigned long flags;
-
- /* Transmit complete. */
- if (irqn & IR_TXINTR) {
- ack |= IR_TXINTR;
- spin_lock_irqsave(&hw->lock, flags);
- hw->tx_ready = 1;
- spin_unlock_irqrestore(&hw->lock, flags);
- }
- /* Received data */
- if (irqn & IR_RXINTR) {
- ack |= IR_RXINTR;
- spin_lock_irqsave(&hw->lock, flags);
- hw->rx_ready++;
- spin_unlock_irqrestore(&hw->lock, flags);
- }
- if (ack != 0) {
- outw(ack, hw->base_port + IOIR);
- tasklet_schedule(&hw->tasklet);
- }
- return IRQ_HANDLED;
- }
- return IRQ_NONE;
-}
-
-static void acknowledge_pcmcia_interrupt(struct ipw_hardware *hw)
-{
- unsigned short csr = readw(&hw->memregs_CCR->reg_config_and_status);
-
- csr &= 0xfffd;
- writew(csr, &hw->memregs_CCR->reg_config_and_status);
-}
-
-static irqreturn_t ipwireless_handle_v2_v3_interrupt(int irq,
- struct ipw_hardware *hw)
-{
- int tx = 0;
- int rx = 0;
- int rx_repeat = 0;
- int try_mem_tx_old;
- unsigned long flags;
-
- do {
-
- unsigned short memtx = readw(hw->memreg_tx);
- unsigned short memtx_serial;
- unsigned short memrxdone =
- readw(&hw->memory_info_regs->memreg_rx_done);
-
- try_mem_tx_old = 0;
-
- /* check whether the interrupt was generated by ipwireless card */
- if (!(memtx & MEMTX_TX) && !(memrxdone & MEMRX_RX_DONE)) {
-
- /* check if the card uses memreg_tx_old register */
- if (hw->memreg_tx == &hw->memory_info_regs->memreg_tx_new) {
- memtx = readw(&hw->memory_info_regs->memreg_tx_old);
- if (memtx & MEMTX_TX) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": Using memreg_tx_old\n");
- hw->memreg_tx =
- &hw->memory_info_regs->memreg_tx_old;
- } else {
- return IRQ_NONE;
- }
- } else
- return IRQ_NONE;
- }
-
- /*
- * See if the card is physically present. Note that while it is
- * powering up, it appears not to be present.
- */
- if (!is_card_present(hw)) {
- acknowledge_pcmcia_interrupt(hw);
- return IRQ_HANDLED;
- }
-
- memtx_serial = memtx & (unsigned short) 0xff00;
- if (memtx & MEMTX_TX) {
- writew(memtx_serial, hw->memreg_tx);
-
- if (hw->serial_number_detected) {
- if (memtx_serial != hw->last_memtx_serial) {
- hw->last_memtx_serial = memtx_serial;
- spin_lock_irqsave(&hw->lock, flags);
- hw->rx_ready++;
- spin_unlock_irqrestore(&hw->lock, flags);
- rx = 1;
- } else
- /* Ignore 'Timer Recovery' duplicates. */
- rx_repeat = 1;
- } else {
- /*
- * If a non-zero serial number is seen, then enable
- * serial number checking.
- */
- if (memtx_serial != 0) {
- hw->serial_number_detected = 1;
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
- ": memreg_tx serial num detected\n");
-
- spin_lock_irqsave(&hw->lock, flags);
- hw->rx_ready++;
- spin_unlock_irqrestore(&hw->lock, flags);
- }
- rx = 1;
- }
- }
- if (memrxdone & MEMRX_RX_DONE) {
- writew(0, &hw->memory_info_regs->memreg_rx_done);
- spin_lock_irqsave(&hw->lock, flags);
- hw->tx_ready = 1;
- spin_unlock_irqrestore(&hw->lock, flags);
- tx = 1;
- }
- if (tx)
- writew(MEMRX_PCINTACKK,
- &hw->memory_info_regs->memreg_pc_interrupt_ack);
-
- acknowledge_pcmcia_interrupt(hw);
-
- if (tx || rx)
- tasklet_schedule(&hw->tasklet);
- else if (!rx_repeat) {
- if (hw->memreg_tx == &hw->memory_info_regs->memreg_tx_new) {
- if (hw->serial_number_detected)
- printk(KERN_WARNING IPWIRELESS_PCCARD_NAME
- ": spurious interrupt - new_tx mode\n");
- else {
- printk(KERN_WARNING IPWIRELESS_PCCARD_NAME
- ": no valid memreg_tx value - switching to the old memreg_tx\n");
- hw->memreg_tx =
- &hw->memory_info_regs->memreg_tx_old;
- try_mem_tx_old = 1;
- }
- } else
- printk(KERN_WARNING IPWIRELESS_PCCARD_NAME
- ": spurious interrupt - old_tx mode\n");
- }
-
- } while (try_mem_tx_old == 1);
-
- return IRQ_HANDLED;
-}
-
-irqreturn_t ipwireless_interrupt(int irq, void *dev_id)
-{
- struct ipw_dev *ipw = dev_id;
-
- if (ipw->hardware->hw_version == HW_VERSION_1)
- return ipwireless_handle_v1_interrupt(irq, ipw->hardware);
- else
- return ipwireless_handle_v2_v3_interrupt(irq, ipw->hardware);
-}
-
-static void flush_packets_to_hw(struct ipw_hardware *hw)
-{
- int priority_limit;
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- priority_limit = get_current_packet_priority(hw);
- spin_unlock_irqrestore(&hw->lock, flags);
-
- while (send_pending_packet(hw, priority_limit));
-}
-
-static void send_packet(struct ipw_hardware *hw, int priority,
- struct ipw_tx_packet *packet)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- list_add_tail(&packet->queue, &hw->tx_queue[priority]);
- hw->tx_queued++;
- spin_unlock_irqrestore(&hw->lock, flags);
-
- flush_packets_to_hw(hw);
-}
-
-/* Create data packet, non-atomic allocation */
-static void *alloc_data_packet(int data_size,
- unsigned char dest_addr,
- unsigned char protocol)
-{
- struct ipw_tx_packet *packet = kzalloc(
- sizeof(struct ipw_tx_packet) + data_size,
- GFP_ATOMIC);
-
- if (!packet)
- return NULL;
-
- INIT_LIST_HEAD(&packet->queue);
- packet->dest_addr = dest_addr;
- packet->protocol = protocol;
- packet->length = data_size;
-
- return packet;
-}
-
-static void *alloc_ctrl_packet(int header_size,
- unsigned char dest_addr,
- unsigned char protocol,
- unsigned char sig_no)
-{
- /*
- * sig_no is located right after ipw_tx_packet struct in every
- * CTRL or SETUP packets, we can use ipw_control_packet as a
- * common struct
- */
- struct ipw_control_packet *packet = kzalloc(header_size, GFP_ATOMIC);
-
- if (!packet)
- return NULL;
-
- INIT_LIST_HEAD(&packet->header.queue);
- packet->header.dest_addr = dest_addr;
- packet->header.protocol = protocol;
- packet->header.length = header_size - sizeof(struct ipw_tx_packet);
- packet->body.sig_no = sig_no;
-
- return packet;
-}
-
-int ipwireless_send_packet(struct ipw_hardware *hw, unsigned int channel_idx,
- const unsigned char *data, unsigned int length,
- void (*callback) (void *cb, unsigned int length),
- void *callback_data)
-{
- struct ipw_tx_packet *packet;
-
- packet = alloc_data_packet(length, (channel_idx + 1),
- TL_PROTOCOLID_COM_DATA);
- if (!packet)
- return -ENOMEM;
- packet->packet_callback = callback;
- packet->callback_data = callback_data;
- memcpy((unsigned char *) packet + sizeof(struct ipw_tx_packet), data,
- length);
-
- send_packet(hw, PRIO_DATA, packet);
- return 0;
-}
-
-static int set_control_line(struct ipw_hardware *hw, int prio,
- unsigned int channel_idx, int line, int state)
-{
- struct ipw_control_packet *packet;
- int protocolid = TL_PROTOCOLID_COM_CTRL;
-
- if (prio == PRIO_SETUP)
- protocolid = TL_PROTOCOLID_SETUP;
-
- packet = alloc_ctrl_packet(sizeof(struct ipw_control_packet),
- (channel_idx + 1), protocolid, line);
- if (!packet)
- return -ENOMEM;
- packet->header.length = sizeof(struct ipw_control_packet_body);
- packet->body.value = (state == 0 ? 0 : 1);
- send_packet(hw, prio, &packet->header);
- return 0;
-}
-
-
-static int set_DTR(struct ipw_hardware *hw, int priority,
- unsigned int channel_idx, int state)
-{
- if (state != 0)
- hw->control_lines[channel_idx] |= IPW_CONTROL_LINE_DTR;
- else
- hw->control_lines[channel_idx] &= ~IPW_CONTROL_LINE_DTR;
-
- return set_control_line(hw, priority, channel_idx, COMCTRL_DTR, state);
-}
-
-static int set_RTS(struct ipw_hardware *hw, int priority,
- unsigned int channel_idx, int state)
-{
- if (state != 0)
- hw->control_lines[channel_idx] |= IPW_CONTROL_LINE_RTS;
- else
- hw->control_lines[channel_idx] &= ~IPW_CONTROL_LINE_RTS;
-
- return set_control_line(hw, priority, channel_idx, COMCTRL_RTS, state);
-}
-
-int ipwireless_set_DTR(struct ipw_hardware *hw, unsigned int channel_idx,
- int state)
-{
- return set_DTR(hw, PRIO_CTRL, channel_idx, state);
-}
-
-int ipwireless_set_RTS(struct ipw_hardware *hw, unsigned int channel_idx,
- int state)
-{
- return set_RTS(hw, PRIO_CTRL, channel_idx, state);
-}
-
-struct ipw_setup_get_version_query_packet {
- struct ipw_tx_packet header;
- struct tl_setup_get_version_qry body;
-};
-
-struct ipw_setup_config_packet {
- struct ipw_tx_packet header;
- struct tl_setup_config_msg body;
-};
-
-struct ipw_setup_config_done_packet {
- struct ipw_tx_packet header;
- struct tl_setup_config_done_msg body;
-};
-
-struct ipw_setup_open_packet {
- struct ipw_tx_packet header;
- struct tl_setup_open_msg body;
-};
-
-struct ipw_setup_info_packet {
- struct ipw_tx_packet header;
- struct tl_setup_info_msg body;
-};
-
-struct ipw_setup_reboot_msg_ack {
- struct ipw_tx_packet header;
- struct TlSetupRebootMsgAck body;
-};
-
-/* This handles the actual initialization of the card */
-static void __handle_setup_get_version_rsp(struct ipw_hardware *hw)
-{
- struct ipw_setup_config_packet *config_packet;
- struct ipw_setup_config_done_packet *config_done_packet;
- struct ipw_setup_open_packet *open_packet;
- struct ipw_setup_info_packet *info_packet;
- int port;
- unsigned int channel_idx;
-
- /* generate config packet */
- for (port = 1; port <= NL_NUM_OF_ADDRESSES; port++) {
- config_packet = alloc_ctrl_packet(
- sizeof(struct ipw_setup_config_packet),
- ADDR_SETUP_PROT,
- TL_PROTOCOLID_SETUP,
- TL_SETUP_SIGNO_CONFIG_MSG);
- if (!config_packet)
- goto exit_nomem;
- config_packet->header.length = sizeof(struct tl_setup_config_msg);
- config_packet->body.port_no = port;
- config_packet->body.prio_data = PRIO_DATA;
- config_packet->body.prio_ctrl = PRIO_CTRL;
- send_packet(hw, PRIO_SETUP, &config_packet->header);
- }
- config_done_packet = alloc_ctrl_packet(
- sizeof(struct ipw_setup_config_done_packet),
- ADDR_SETUP_PROT,
- TL_PROTOCOLID_SETUP,
- TL_SETUP_SIGNO_CONFIG_DONE_MSG);
- if (!config_done_packet)
- goto exit_nomem;
- config_done_packet->header.length = sizeof(struct tl_setup_config_done_msg);
- send_packet(hw, PRIO_SETUP, &config_done_packet->header);
-
- /* generate open packet */
- for (port = 1; port <= NL_NUM_OF_ADDRESSES; port++) {
- open_packet = alloc_ctrl_packet(
- sizeof(struct ipw_setup_open_packet),
- ADDR_SETUP_PROT,
- TL_PROTOCOLID_SETUP,
- TL_SETUP_SIGNO_OPEN_MSG);
- if (!open_packet)
- goto exit_nomem;
- open_packet->header.length = sizeof(struct tl_setup_open_msg);
- open_packet->body.port_no = port;
- send_packet(hw, PRIO_SETUP, &open_packet->header);
- }
- for (channel_idx = 0;
- channel_idx < NL_NUM_OF_ADDRESSES; channel_idx++) {
- int ret;
-
- ret = set_DTR(hw, PRIO_SETUP, channel_idx,
- (hw->control_lines[channel_idx] &
- IPW_CONTROL_LINE_DTR) != 0);
- if (ret) {
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": error setting DTR (%d)\n", ret);
- return;
- }
-
- set_RTS(hw, PRIO_SETUP, channel_idx,
- (hw->control_lines [channel_idx] &
- IPW_CONTROL_LINE_RTS) != 0);
- if (ret) {
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": error setting RTS (%d)\n", ret);
- return;
- }
- }
- /*
- * For NDIS we assume that we are using sync PPP frames, for COM async.
- * This driver uses NDIS mode too. We don't bother with translation
- * from async -> sync PPP.
- */
- info_packet = alloc_ctrl_packet(sizeof(struct ipw_setup_info_packet),
- ADDR_SETUP_PROT,
- TL_PROTOCOLID_SETUP,
- TL_SETUP_SIGNO_INFO_MSG);
- if (!info_packet)
- goto exit_nomem;
- info_packet->header.length = sizeof(struct tl_setup_info_msg);
- info_packet->body.driver_type = NDISWAN_DRIVER;
- info_packet->body.major_version = NDISWAN_DRIVER_MAJOR_VERSION;
- info_packet->body.minor_version = NDISWAN_DRIVER_MINOR_VERSION;
- send_packet(hw, PRIO_SETUP, &info_packet->header);
-
- /* Initialization is now complete, so we clear the 'to_setup' flag */
- hw->to_setup = 0;
-
- return;
-
-exit_nomem:
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": not enough memory to alloc control packet\n");
- hw->to_setup = -1;
-}
-
-static void handle_setup_get_version_rsp(struct ipw_hardware *hw,
- unsigned char vers_no)
-{
- del_timer(&hw->setup_timer);
- hw->initializing = 0;
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": card is ready.\n");
-
- if (vers_no == TL_SETUP_VERSION)
- __handle_setup_get_version_rsp(hw);
- else
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": invalid hardware version no %u\n",
- (unsigned int) vers_no);
-}
-
-static void ipw_send_setup_packet(struct ipw_hardware *hw)
-{
- struct ipw_setup_get_version_query_packet *ver_packet;
-
- ver_packet = alloc_ctrl_packet(
- sizeof(struct ipw_setup_get_version_query_packet),
- ADDR_SETUP_PROT, TL_PROTOCOLID_SETUP,
- TL_SETUP_SIGNO_GET_VERSION_QRY);
- ver_packet->header.length = sizeof(struct tl_setup_get_version_qry);
-
- /*
- * Response is handled in handle_received_SETUP_packet
- */
- send_packet(hw, PRIO_SETUP, &ver_packet->header);
-}
-
-static void handle_received_SETUP_packet(struct ipw_hardware *hw,
- unsigned int address,
- const unsigned char *data, int len,
- int is_last)
-{
- const union ipw_setup_rx_msg *rx_msg = (const union ipw_setup_rx_msg *) data;
-
- if (address != ADDR_SETUP_PROT) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": setup packet has bad address %d\n", address);
- return;
- }
-
- switch (rx_msg->sig_no) {
- case TL_SETUP_SIGNO_GET_VERSION_RSP:
- if (hw->to_setup)
- handle_setup_get_version_rsp(hw,
- rx_msg->version_rsp_msg.version);
- break;
-
- case TL_SETUP_SIGNO_OPEN_MSG:
- if (ipwireless_debug) {
- unsigned int channel_idx = rx_msg->open_msg.port_no - 1;
-
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": OPEN_MSG [channel %u] reply received\n",
- channel_idx);
- }
- break;
-
- case TL_SETUP_SIGNO_INFO_MSG_ACK:
- if (ipwireless_debug)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
- ": card successfully configured as NDISWAN\n");
- break;
-
- case TL_SETUP_SIGNO_REBOOT_MSG:
- if (hw->to_setup)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
- ": Setup not completed - ignoring reboot msg\n");
- else {
- struct ipw_setup_reboot_msg_ack *packet;
-
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
- ": Acknowledging REBOOT message\n");
- packet = alloc_ctrl_packet(
- sizeof(struct ipw_setup_reboot_msg_ack),
- ADDR_SETUP_PROT, TL_PROTOCOLID_SETUP,
- TL_SETUP_SIGNO_REBOOT_MSG_ACK);
- packet->header.length =
- sizeof(struct TlSetupRebootMsgAck);
- send_packet(hw, PRIO_SETUP, &packet->header);
- if (hw->reboot_callback)
- hw->reboot_callback(hw->reboot_callback_data);
- }
- break;
-
- default:
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": unknown setup message %u received\n",
- (unsigned int) rx_msg->sig_no);
- }
-}
-
-static void do_close_hardware(struct ipw_hardware *hw)
-{
- unsigned int irqn;
-
- if (hw->hw_version == HW_VERSION_1) {
- /* Disable TX and RX interrupts. */
- outw(0, hw->base_port + IOIER);
-
- /* Acknowledge any outstanding interrupt requests */
- irqn = inw(hw->base_port + IOIR);
- if (irqn & IR_TXINTR)
- outw(IR_TXINTR, hw->base_port + IOIR);
- if (irqn & IR_RXINTR)
- outw(IR_RXINTR, hw->base_port + IOIR);
-
- synchronize_irq(hw->irq);
- }
-}
-
-struct ipw_hardware *ipwireless_hardware_create(void)
-{
- int i;
- struct ipw_hardware *hw =
- kzalloc(sizeof(struct ipw_hardware), GFP_KERNEL);
-
- if (!hw)
- return NULL;
-
- hw->irq = -1;
- hw->initializing = 1;
- hw->tx_ready = 1;
- hw->rx_bytes_queued = 0;
- hw->rx_pool_size = 0;
- hw->last_memtx_serial = (unsigned short) 0xffff;
- for (i = 0; i < NL_NUM_OF_PRIORITIES; i++)
- INIT_LIST_HEAD(&hw->tx_queue[i]);
-
- INIT_LIST_HEAD(&hw->rx_queue);
- INIT_LIST_HEAD(&hw->rx_pool);
- spin_lock_init(&hw->lock);
- tasklet_init(&hw->tasklet, ipwireless_do_tasklet, (unsigned long) hw);
- INIT_WORK(&hw->work_rx, ipw_receive_data_work);
- setup_timer(&hw->setup_timer, ipwireless_setup_timer,
- (unsigned long) hw);
-
- return hw;
-}
-
-void ipwireless_init_hardware_v1(struct ipw_hardware *hw,
- unsigned int base_port,
- void __iomem *attr_memory,
- void __iomem *common_memory,
- int is_v2_card,
- void (*reboot_callback) (void *data),
- void *reboot_callback_data)
-{
- if (hw->removed) {
- hw->removed = 0;
- enable_irq(hw->irq);
- }
- hw->base_port = base_port;
- hw->hw_version = (is_v2_card ? HW_VERSION_2 : HW_VERSION_1);
- hw->ll_mtu = (hw->hw_version == HW_VERSION_1 ? LL_MTU_V1 : LL_MTU_V2);
- hw->memregs_CCR = (struct MEMCCR __iomem *)
- ((unsigned short __iomem *) attr_memory + 0x200);
- hw->memory_info_regs = (struct MEMINFREG __iomem *) common_memory;
- hw->memreg_tx = &hw->memory_info_regs->memreg_tx_new;
- hw->reboot_callback = reboot_callback;
- hw->reboot_callback_data = reboot_callback_data;
-}
-
-void ipwireless_init_hardware_v2_v3(struct ipw_hardware *hw)
-{
- hw->initializing = 1;
- hw->init_loops = 0;
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": waiting for card to start up...\n");
- ipwireless_setup_timer((unsigned long) hw);
-}
-
-static void ipwireless_setup_timer(unsigned long data)
-{
- struct ipw_hardware *hw = (struct ipw_hardware *) data;
-
- hw->init_loops++;
-
- if (hw->init_loops == TL_SETUP_MAX_VERSION_QRY &&
- hw->hw_version == HW_VERSION_2 &&
- hw->memreg_tx == &hw->memory_info_regs->memreg_tx_new) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": failed to startup using TX2, trying TX\n");
-
- hw->memreg_tx = &hw->memory_info_regs->memreg_tx_old;
- hw->init_loops = 0;
- }
- /* Give up after a certain number of retries */
- if (hw->init_loops == TL_SETUP_MAX_VERSION_QRY) {
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": card failed to start up!\n");
- hw->initializing = 0;
- } else {
- /* Do not attempt to write to the board if it is not present. */
- if (is_card_present(hw)) {
- unsigned long flags;
-
- spin_lock_irqsave(&hw->lock, flags);
- hw->to_setup = 1;
- hw->tx_ready = 1;
- spin_unlock_irqrestore(&hw->lock, flags);
- tasklet_schedule(&hw->tasklet);
- }
-
- mod_timer(&hw->setup_timer,
- jiffies + msecs_to_jiffies(TL_SETUP_VERSION_QRY_TMO));
- }
-}
-
-/*
- * Stop any interrupts from executing so that, once this function returns,
- * other layers of the driver can be sure they won't get any more callbacks.
- * Thus must be called on a proper process context.
- */
-void ipwireless_stop_interrupts(struct ipw_hardware *hw)
-{
- if (!hw->shutting_down) {
- /* Tell everyone we are going down. */
- hw->shutting_down = 1;
- del_timer(&hw->setup_timer);
-
- /* Prevent the hardware from sending any more interrupts */
- do_close_hardware(hw);
- }
-}
-
-void ipwireless_hardware_free(struct ipw_hardware *hw)
-{
- int i;
- struct ipw_rx_packet *rp, *rq;
- struct ipw_tx_packet *tp, *tq;
-
- ipwireless_stop_interrupts(hw);
-
- flush_work_sync(&hw->work_rx);
-
- for (i = 0; i < NL_NUM_OF_ADDRESSES; i++)
- if (hw->packet_assembler[i] != NULL)
- kfree(hw->packet_assembler[i]);
-
- for (i = 0; i < NL_NUM_OF_PRIORITIES; i++)
- list_for_each_entry_safe(tp, tq, &hw->tx_queue[i], queue) {
- list_del(&tp->queue);
- kfree(tp);
- }
-
- list_for_each_entry_safe(rp, rq, &hw->rx_queue, queue) {
- list_del(&rp->queue);
- kfree(rp);
- }
-
- list_for_each_entry_safe(rp, rq, &hw->rx_pool, queue) {
- list_del(&rp->queue);
- kfree(rp);
- }
- kfree(hw);
-}
-
-/*
- * Associate the specified network with this hardware, so it will receive events
- * from it.
- */
-void ipwireless_associate_network(struct ipw_hardware *hw,
- struct ipw_network *network)
-{
- hw->network = network;
-}
diff --git a/drivers/char/pcmcia/ipwireless/hardware.h b/drivers/char/pcmcia/ipwireless/hardware.h
deleted file mode 100644
index 90a8590e43b..00000000000
--- a/drivers/char/pcmcia/ipwireless/hardware.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#ifndef _IPWIRELESS_CS_HARDWARE_H_
-#define _IPWIRELESS_CS_HARDWARE_H_
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-
-#define IPW_CONTROL_LINE_CTS 0x0001
-#define IPW_CONTROL_LINE_DCD 0x0002
-#define IPW_CONTROL_LINE_DSR 0x0004
-#define IPW_CONTROL_LINE_RI 0x0008
-#define IPW_CONTROL_LINE_DTR 0x0010
-#define IPW_CONTROL_LINE_RTS 0x0020
-
-struct ipw_hardware;
-struct ipw_network;
-
-struct ipw_hardware *ipwireless_hardware_create(void);
-void ipwireless_hardware_free(struct ipw_hardware *hw);
-irqreturn_t ipwireless_interrupt(int irq, void *dev_id);
-int ipwireless_set_DTR(struct ipw_hardware *hw, unsigned int channel_idx,
- int state);
-int ipwireless_set_RTS(struct ipw_hardware *hw, unsigned int channel_idx,
- int state);
-int ipwireless_send_packet(struct ipw_hardware *hw,
- unsigned int channel_idx,
- const unsigned char *data,
- unsigned int length,
- void (*packet_sent_callback) (void *cb,
- unsigned int length),
- void *sent_cb_data);
-void ipwireless_associate_network(struct ipw_hardware *hw,
- struct ipw_network *net);
-void ipwireless_stop_interrupts(struct ipw_hardware *hw);
-void ipwireless_init_hardware_v1(struct ipw_hardware *hw,
- unsigned int base_port,
- void __iomem *attr_memory,
- void __iomem *common_memory,
- int is_v2_card,
- void (*reboot_cb) (void *data),
- void *reboot_cb_data);
-void ipwireless_init_hardware_v2_v3(struct ipw_hardware *hw);
-void ipwireless_sleep(unsigned int tenths);
-
-#endif
diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c
deleted file mode 100644
index 444155a305a..00000000000
--- a/drivers/char/pcmcia/ipwireless/main.c
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#include "hardware.h"
-#include "network.h"
-#include "main.h"
-#include "tty.h"
-
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-
-#include <pcmcia/cisreg.h>
-#include <pcmcia/device_id.h>
-#include <pcmcia/ss.h>
-#include <pcmcia/ds.h>
-
-static struct pcmcia_device_id ipw_ids[] = {
- PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
- PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
- PCMCIA_DEVICE_NULL
-};
-MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
-
-static void ipwireless_detach(struct pcmcia_device *link);
-
-/*
- * Module params
- */
-/* Debug mode: more verbose, print sent/recv bytes */
-int ipwireless_debug;
-int ipwireless_loopback;
-int ipwireless_out_queue = 10;
-
-module_param_named(debug, ipwireless_debug, int, 0);
-module_param_named(loopback, ipwireless_loopback, int, 0);
-module_param_named(out_queue, ipwireless_out_queue, int, 0);
-MODULE_PARM_DESC(debug, "switch on debug messages [0]");
-MODULE_PARM_DESC(loopback,
- "debug: enable ras_raw channel [0]");
-MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
-
-/* Executes in process context. */
-static void signalled_reboot_work(struct work_struct *work_reboot)
-{
- struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
- work_reboot);
- struct pcmcia_device *link = ipw->link;
- pcmcia_reset_card(link->socket);
-}
-
-static void signalled_reboot_callback(void *callback_data)
-{
- struct ipw_dev *ipw = (struct ipw_dev *) callback_data;
-
- /* Delegate to process context. */
- schedule_work(&ipw->work_reboot);
-}
-
-static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
-{
- struct ipw_dev *ipw = priv_data;
- int ret;
-
- p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
- p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
-
- /* 0x40 causes it to generate level mode interrupts. */
- /* 0x04 enables IREQ pin. */
- p_dev->config_index |= 0x44;
- p_dev->io_lines = 16;
- ret = pcmcia_request_io(p_dev);
- if (ret)
- return ret;
-
- if (!request_region(p_dev->resource[0]->start,
- resource_size(p_dev->resource[0]),
- IPWIRELESS_PCCARD_NAME)) {
- ret = -EBUSY;
- goto exit;
- }
-
- p_dev->resource[2]->flags |=
- WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
-
- ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
- if (ret != 0)
- goto exit1;
-
- ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
- if (ret != 0)
- goto exit1;
-
- ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
-
- ipw->common_memory = ioremap(p_dev->resource[2]->start,
- resource_size(p_dev->resource[2]));
- if (!request_mem_region(p_dev->resource[2]->start,
- resource_size(p_dev->resource[2]),
- IPWIRELESS_PCCARD_NAME)) {
- ret = -EBUSY;
- goto exit2;
- }
-
- p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
- WIN_ENABLE;
- p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
- ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
- if (ret != 0)
- goto exit3;
-
- ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
- if (ret != 0)
- goto exit3;
-
- ipw->attr_memory = ioremap(p_dev->resource[3]->start,
- resource_size(p_dev->resource[3]));
- if (!request_mem_region(p_dev->resource[3]->start,
- resource_size(p_dev->resource[3]),
- IPWIRELESS_PCCARD_NAME)) {
- ret = -EBUSY;
- goto exit4;
- }
-
- return 0;
-
-exit4:
- iounmap(ipw->attr_memory);
-exit3:
- release_mem_region(p_dev->resource[2]->start,
- resource_size(p_dev->resource[2]));
-exit2:
- iounmap(ipw->common_memory);
-exit1:
- release_region(p_dev->resource[0]->start,
- resource_size(p_dev->resource[0]));
-exit:
- pcmcia_disable_device(p_dev);
- return ret;
-}
-
-static int config_ipwireless(struct ipw_dev *ipw)
-{
- struct pcmcia_device *link = ipw->link;
- int ret = 0;
-
- ipw->is_v2_card = 0;
- link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
- CONF_ENABLE_IRQ;
-
- ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
- if (ret != 0)
- return ret;
-
- INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
-
- ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
- ipw->attr_memory, ipw->common_memory,
- ipw->is_v2_card, signalled_reboot_callback,
- ipw);
-
- ret = pcmcia_request_irq(link, ipwireless_interrupt);
- if (ret != 0)
- goto exit;
-
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
- ipw->is_v2_card ? "V2/V3" : "V1");
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": I/O ports %pR, irq %d\n", link->resource[0],
- (unsigned int) link->irq);
- if (ipw->attr_memory && ipw->common_memory)
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": attr memory %pR, common memory %pR\n",
- link->resource[3],
- link->resource[2]);
-
- ipw->network = ipwireless_network_create(ipw->hardware);
- if (!ipw->network)
- goto exit;
-
- ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
- if (!ipw->tty)
- goto exit;
-
- ipwireless_init_hardware_v2_v3(ipw->hardware);
-
- /*
- * Do the RequestConfiguration last, because it enables interrupts.
- * Then we don't get any interrupts before we're ready for them.
- */
- ret = pcmcia_enable_device(link);
- if (ret != 0)
- goto exit;
-
- return 0;
-
-exit:
- if (ipw->common_memory) {
- release_mem_region(link->resource[2]->start,
- resource_size(link->resource[2]));
- iounmap(ipw->common_memory);
- }
- if (ipw->attr_memory) {
- release_mem_region(link->resource[3]->start,
- resource_size(link->resource[3]));
- iounmap(ipw->attr_memory);
- }
- pcmcia_disable_device(link);
- return -1;
-}
-
-static void release_ipwireless(struct ipw_dev *ipw)
-{
- release_region(ipw->link->resource[0]->start,
- resource_size(ipw->link->resource[0]));
- if (ipw->common_memory) {
- release_mem_region(ipw->link->resource[2]->start,
- resource_size(ipw->link->resource[2]));
- iounmap(ipw->common_memory);
- }
- if (ipw->attr_memory) {
- release_mem_region(ipw->link->resource[3]->start,
- resource_size(ipw->link->resource[3]));
- iounmap(ipw->attr_memory);
- }
- pcmcia_disable_device(ipw->link);
-}
-
-/*
- * ipwireless_attach() creates an "instance" of the driver, allocating
- * local data structures for one device (one interface). The device
- * is registered with Card Services.
- *
- * The pcmcia_device structure is initialized, but we don't actually
- * configure the card at this point -- we wait until we receive a
- * card insertion event.
- */
-static int ipwireless_attach(struct pcmcia_device *link)
-{
- struct ipw_dev *ipw;
- int ret;
-
- ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
- if (!ipw)
- return -ENOMEM;
-
- ipw->link = link;
- link->priv = ipw;
-
- ipw->hardware = ipwireless_hardware_create();
- if (!ipw->hardware) {
- kfree(ipw);
- return -ENOMEM;
- }
- /* RegisterClient will call config_ipwireless */
-
- ret = config_ipwireless(ipw);
-
- if (ret != 0) {
- ipwireless_detach(link);
- return ret;
- }
-
- return 0;
-}
-
-/*
- * This deletes a driver "instance". The device is de-registered with
- * Card Services. If it has been released, all local data structures
- * are freed. Otherwise, the structures will be freed when the device
- * is released.
- */
-static void ipwireless_detach(struct pcmcia_device *link)
-{
- struct ipw_dev *ipw = link->priv;
-
- release_ipwireless(ipw);
-
- if (ipw->tty != NULL)
- ipwireless_tty_free(ipw->tty);
- if (ipw->network != NULL)
- ipwireless_network_free(ipw->network);
- if (ipw->hardware != NULL)
- ipwireless_hardware_free(ipw->hardware);
- kfree(ipw);
-}
-
-static struct pcmcia_driver me = {
- .owner = THIS_MODULE,
- .probe = ipwireless_attach,
- .remove = ipwireless_detach,
- .name = IPWIRELESS_PCCARD_NAME,
- .id_table = ipw_ids
-};
-
-/*
- * Module insertion : initialisation of the module.
- * Register the card with cardmgr...
- */
-static int __init init_ipwireless(void)
-{
- int ret;
-
- ret = ipwireless_tty_init();
- if (ret != 0)
- return ret;
-
- ret = pcmcia_register_driver(&me);
- if (ret != 0)
- ipwireless_tty_release();
-
- return ret;
-}
-
-/*
- * Module removal
- */
-static void __exit exit_ipwireless(void)
-{
- pcmcia_unregister_driver(&me);
- ipwireless_tty_release();
-}
-
-module_init(init_ipwireless);
-module_exit(exit_ipwireless);
-
-MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
-MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/pcmcia/ipwireless/main.h b/drivers/char/pcmcia/ipwireless/main.h
deleted file mode 100644
index f2cbb116bcc..00000000000
--- a/drivers/char/pcmcia/ipwireless/main.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#ifndef _IPWIRELESS_CS_H_
-#define _IPWIRELESS_CS_H_
-
-#include <linux/sched.h>
-#include <linux/types.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-
-#include "hardware.h"
-
-#define IPWIRELESS_PCCARD_NAME "ipwireless"
-#define IPWIRELESS_PCMCIA_VERSION "1.1"
-#define IPWIRELESS_PCMCIA_AUTHOR \
- "Stephen Blackheath, Ben Martel, Jiri Kosina and David Sterba"
-
-#define IPWIRELESS_TX_QUEUE_SIZE 262144
-#define IPWIRELESS_RX_QUEUE_SIZE 262144
-
-#define IPWIRELESS_STATE_DEBUG
-
-struct ipw_hardware;
-struct ipw_network;
-struct ipw_tty;
-
-struct ipw_dev {
- struct pcmcia_device *link;
- int is_v2_card;
-
- void __iomem *attr_memory;
-
- void __iomem *common_memory;
-
- /* Reference to attribute memory, containing CIS data */
- void *attribute_memory;
-
- /* Hardware context */
- struct ipw_hardware *hardware;
- /* Network layer context */
- struct ipw_network *network;
- /* TTY device context */
- struct ipw_tty *tty;
- struct work_struct work_reboot;
-};
-
-/* Module parametres */
-extern int ipwireless_debug;
-extern int ipwireless_loopback;
-extern int ipwireless_out_queue;
-
-#endif
diff --git a/drivers/char/pcmcia/ipwireless/network.c b/drivers/char/pcmcia/ipwireless/network.c
deleted file mode 100644
index f7daeea598e..00000000000
--- a/drivers/char/pcmcia/ipwireless/network.c
+++ /dev/null
@@ -1,508 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-#include <linux/netdevice.h>
-#include <linux/ppp_channel.h>
-#include <linux/ppp_defs.h>
-#include <linux/slab.h>
-#include <linux/if_ppp.h>
-#include <linux/skbuff.h>
-
-#include "network.h"
-#include "hardware.h"
-#include "main.h"
-#include "tty.h"
-
-#define MAX_ASSOCIATED_TTYS 2
-
-#define SC_RCV_BITS (SC_RCV_B7_1|SC_RCV_B7_0|SC_RCV_ODDP|SC_RCV_EVNP)
-
-struct ipw_network {
- /* Hardware context, used for calls to hardware layer. */
- struct ipw_hardware *hardware;
- /* Context for kernel 'generic_ppp' functionality */
- struct ppp_channel *ppp_channel;
- /* tty context connected with IPW console */
- struct ipw_tty *associated_ttys[NO_OF_IPW_CHANNELS][MAX_ASSOCIATED_TTYS];
- /* True if ppp needs waking up once we're ready to xmit */
- int ppp_blocked;
- /* Number of packets queued up in hardware module. */
- int outgoing_packets_queued;
- /* Spinlock to avoid interrupts during shutdown */
- spinlock_t lock;
- struct mutex close_lock;
-
- /* PPP ioctl data, not actually used anywere */
- unsigned int flags;
- unsigned int rbits;
- u32 xaccm[8];
- u32 raccm;
- int mru;
-
- int shutting_down;
- unsigned int ras_control_lines;
-
- struct work_struct work_go_online;
- struct work_struct work_go_offline;
-};
-
-static void notify_packet_sent(void *callback_data, unsigned int packet_length)
-{
- struct ipw_network *network = callback_data;
- unsigned long flags;
-
- spin_lock_irqsave(&network->lock, flags);
- network->outgoing_packets_queued--;
- if (network->ppp_channel != NULL) {
- if (network->ppp_blocked) {
- network->ppp_blocked = 0;
- spin_unlock_irqrestore(&network->lock, flags);
- ppp_output_wakeup(network->ppp_channel);
- if (ipwireless_debug)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
- ": ppp unblocked\n");
- } else
- spin_unlock_irqrestore(&network->lock, flags);
- } else
- spin_unlock_irqrestore(&network->lock, flags);
-}
-
-/*
- * Called by the ppp system when it has a packet to send to the hardware.
- */
-static int ipwireless_ppp_start_xmit(struct ppp_channel *ppp_channel,
- struct sk_buff *skb)
-{
- struct ipw_network *network = ppp_channel->private;
- unsigned long flags;
-
- spin_lock_irqsave(&network->lock, flags);
- if (network->outgoing_packets_queued < ipwireless_out_queue) {
- unsigned char *buf;
- static unsigned char header[] = {
- PPP_ALLSTATIONS, /* 0xff */
- PPP_UI, /* 0x03 */
- };
- int ret;
-
- network->outgoing_packets_queued++;
- spin_unlock_irqrestore(&network->lock, flags);
-
- /*
- * If we have the requested amount of headroom in the skb we
- * were handed, then we can add the header efficiently.
- */
- if (skb_headroom(skb) >= 2) {
- memcpy(skb_push(skb, 2), header, 2);
- ret = ipwireless_send_packet(network->hardware,
- IPW_CHANNEL_RAS, skb->data,
- skb->len,
- notify_packet_sent,
- network);
- if (ret == -1) {
- skb_pull(skb, 2);
- return 0;
- }
- } else {
- /* Otherwise (rarely) we do it inefficiently. */
- buf = kmalloc(skb->len + 2, GFP_ATOMIC);
- if (!buf)
- return 0;
- memcpy(buf + 2, skb->data, skb->len);
- memcpy(buf, header, 2);
- ret = ipwireless_send_packet(network->hardware,
- IPW_CHANNEL_RAS, buf,
- skb->len + 2,
- notify_packet_sent,
- network);
- kfree(buf);
- if (ret == -1)
- return 0;
- }
- kfree_skb(skb);
- return 1;
- } else {
- /*
- * Otherwise reject the packet, and flag that the ppp system
- * needs to be unblocked once we are ready to send.
- */
- network->ppp_blocked = 1;
- spin_unlock_irqrestore(&network->lock, flags);
- if (ipwireless_debug)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME ": ppp blocked\n");
- return 0;
- }
-}
-
-/* Handle an ioctl call that has come in via ppp. (copy of ppp_async_ioctl() */
-static int ipwireless_ppp_ioctl(struct ppp_channel *ppp_channel,
- unsigned int cmd, unsigned long arg)
-{
- struct ipw_network *network = ppp_channel->private;
- int err, val;
- u32 accm[8];
- int __user *user_arg = (int __user *) arg;
-
- err = -EFAULT;
- switch (cmd) {
- case PPPIOCGFLAGS:
- val = network->flags | network->rbits;
- if (put_user(val, user_arg))
- break;
- err = 0;
- break;
-
- case PPPIOCSFLAGS:
- if (get_user(val, user_arg))
- break;
- network->flags = val & ~SC_RCV_BITS;
- network->rbits = val & SC_RCV_BITS;
- err = 0;
- break;
-
- case PPPIOCGASYNCMAP:
- if (put_user(network->xaccm[0], user_arg))
- break;
- err = 0;
- break;
-
- case PPPIOCSASYNCMAP:
- if (get_user(network->xaccm[0], user_arg))
- break;
- err = 0;
- break;
-
- case PPPIOCGRASYNCMAP:
- if (put_user(network->raccm, user_arg))
- break;
- err = 0;
- break;
-
- case PPPIOCSRASYNCMAP:
- if (get_user(network->raccm, user_arg))
- break;
- err = 0;
- break;
-
- case PPPIOCGXASYNCMAP:
- if (copy_to_user((void __user *) arg, network->xaccm,
- sizeof(network->xaccm)))
- break;
- err = 0;
- break;
-
- case PPPIOCSXASYNCMAP:
- if (copy_from_user(accm, (void __user *) arg, sizeof(accm)))
- break;
- accm[2] &= ~0x40000000U; /* can't escape 0x5e */
- accm[3] |= 0x60000000U; /* must escape 0x7d, 0x7e */
- memcpy(network->xaccm, accm, sizeof(network->xaccm));
- err = 0;
- break;
-
- case PPPIOCGMRU:
- if (put_user(network->mru, user_arg))
- break;
- err = 0;
- break;
-
- case PPPIOCSMRU:
- if (get_user(val, user_arg))
- break;
- if (val < PPP_MRU)
- val = PPP_MRU;
- network->mru = val;
- err = 0;
- break;
-
- default:
- err = -ENOTTY;
- }
-
- return err;
-}
-
-static const struct ppp_channel_ops ipwireless_ppp_channel_ops = {
- .start_xmit = ipwireless_ppp_start_xmit,
- .ioctl = ipwireless_ppp_ioctl
-};
-
-static void do_go_online(struct work_struct *work_go_online)
-{
- struct ipw_network *network =
- container_of(work_go_online, struct ipw_network,
- work_go_online);
- unsigned long flags;
-
- spin_lock_irqsave(&network->lock, flags);
- if (!network->ppp_channel) {
- struct ppp_channel *channel;
-
- spin_unlock_irqrestore(&network->lock, flags);
- channel = kzalloc(sizeof(struct ppp_channel), GFP_KERNEL);
- if (!channel) {
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": unable to allocate PPP channel\n");
- return;
- }
- channel->private = network;
- channel->mtu = 16384; /* Wild guess */
- channel->hdrlen = 2;
- channel->ops = &ipwireless_ppp_channel_ops;
-
- network->flags = 0;
- network->rbits = 0;
- network->mru = PPP_MRU;
- memset(network->xaccm, 0, sizeof(network->xaccm));
- network->xaccm[0] = ~0U;
- network->xaccm[3] = 0x60000000U;
- network->raccm = ~0U;
- ppp_register_channel(channel);
- spin_lock_irqsave(&network->lock, flags);
- network->ppp_channel = channel;
- }
- spin_unlock_irqrestore(&network->lock, flags);
-}
-
-static void do_go_offline(struct work_struct *work_go_offline)
-{
- struct ipw_network *network =
- container_of(work_go_offline, struct ipw_network,
- work_go_offline);
- unsigned long flags;
-
- mutex_lock(&network->close_lock);
- spin_lock_irqsave(&network->lock, flags);
- if (network->ppp_channel != NULL) {
- struct ppp_channel *channel = network->ppp_channel;
-
- network->ppp_channel = NULL;
- spin_unlock_irqrestore(&network->lock, flags);
- mutex_unlock(&network->close_lock);
- ppp_unregister_channel(channel);
- } else {
- spin_unlock_irqrestore(&network->lock, flags);
- mutex_unlock(&network->close_lock);
- }
-}
-
-void ipwireless_network_notify_control_line_change(struct ipw_network *network,
- unsigned int channel_idx,
- unsigned int control_lines,
- unsigned int changed_mask)
-{
- int i;
-
- if (channel_idx == IPW_CHANNEL_RAS)
- network->ras_control_lines = control_lines;
-
- for (i = 0; i < MAX_ASSOCIATED_TTYS; i++) {
- struct ipw_tty *tty =
- network->associated_ttys[channel_idx][i];
-
- /*
- * If it's associated with a tty (other than the RAS channel
- * when we're online), then send the data to that tty. The RAS
- * channel's data is handled above - it always goes through
- * ppp_generic.
- */
- if (tty)
- ipwireless_tty_notify_control_line_change(tty,
- channel_idx,
- control_lines,
- changed_mask);
- }
-}
-
-/*
- * Some versions of firmware stuff packets with 0xff 0x03 (PPP: ALLSTATIONS, UI)
- * bytes, which are required on sent packet, but not always present on received
- * packets
- */
-static struct sk_buff *ipw_packet_received_skb(unsigned char *data,
- unsigned int length)
-{
- struct sk_buff *skb;
-
- if (length > 2 && data[0] == PPP_ALLSTATIONS && data[1] == PPP_UI) {
- length -= 2;
- data += 2;
- }
-
- skb = dev_alloc_skb(length + 4);
- skb_reserve(skb, 2);
- memcpy(skb_put(skb, length), data, length);
-
- return skb;
-}
-
-void ipwireless_network_packet_received(struct ipw_network *network,
- unsigned int channel_idx,
- unsigned char *data,
- unsigned int length)
-{
- int i;
- unsigned long flags;
-
- for (i = 0; i < MAX_ASSOCIATED_TTYS; i++) {
- struct ipw_tty *tty = network->associated_ttys[channel_idx][i];
-
- if (!tty)
- continue;
-
- /*
- * If it's associated with a tty (other than the RAS channel
- * when we're online), then send the data to that tty. The RAS
- * channel's data is handled above - it always goes through
- * ppp_generic.
- */
- if (channel_idx == IPW_CHANNEL_RAS
- && (network->ras_control_lines &
- IPW_CONTROL_LINE_DCD) != 0
- && ipwireless_tty_is_modem(tty)) {
- /*
- * If data came in on the RAS channel and this tty is
- * the modem tty, and we are online, then we send it to
- * the PPP layer.
- */
- mutex_lock(&network->close_lock);
- spin_lock_irqsave(&network->lock, flags);
- if (network->ppp_channel != NULL) {
- struct sk_buff *skb;
-
- spin_unlock_irqrestore(&network->lock,
- flags);
-
- /* Send the data to the ppp_generic module. */
- skb = ipw_packet_received_skb(data, length);
- ppp_input(network->ppp_channel, skb);
- } else
- spin_unlock_irqrestore(&network->lock,
- flags);
- mutex_unlock(&network->close_lock);
- }
- /* Otherwise we send it out the tty. */
- else
- ipwireless_tty_received(tty, data, length);
- }
-}
-
-struct ipw_network *ipwireless_network_create(struct ipw_hardware *hw)
-{
- struct ipw_network *network =
- kzalloc(sizeof(struct ipw_network), GFP_ATOMIC);
-
- if (!network)
- return NULL;
-
- spin_lock_init(&network->lock);
- mutex_init(&network->close_lock);
-
- network->hardware = hw;
-
- INIT_WORK(&network->work_go_online, do_go_online);
- INIT_WORK(&network->work_go_offline, do_go_offline);
-
- ipwireless_associate_network(hw, network);
-
- return network;
-}
-
-void ipwireless_network_free(struct ipw_network *network)
-{
- network->shutting_down = 1;
-
- ipwireless_ppp_close(network);
- flush_work_sync(&network->work_go_online);
- flush_work_sync(&network->work_go_offline);
-
- ipwireless_stop_interrupts(network->hardware);
- ipwireless_associate_network(network->hardware, NULL);
-
- kfree(network);
-}
-
-void ipwireless_associate_network_tty(struct ipw_network *network,
- unsigned int channel_idx,
- struct ipw_tty *tty)
-{
- int i;
-
- for (i = 0; i < MAX_ASSOCIATED_TTYS; i++)
- if (network->associated_ttys[channel_idx][i] == NULL) {
- network->associated_ttys[channel_idx][i] = tty;
- break;
- }
-}
-
-void ipwireless_disassociate_network_ttys(struct ipw_network *network,
- unsigned int channel_idx)
-{
- int i;
-
- for (i = 0; i < MAX_ASSOCIATED_TTYS; i++)
- network->associated_ttys[channel_idx][i] = NULL;
-}
-
-void ipwireless_ppp_open(struct ipw_network *network)
-{
- if (ipwireless_debug)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME ": online\n");
- schedule_work(&network->work_go_online);
-}
-
-void ipwireless_ppp_close(struct ipw_network *network)
-{
- /* Disconnect from the wireless network. */
- if (ipwireless_debug)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME ": offline\n");
- schedule_work(&network->work_go_offline);
-}
-
-int ipwireless_ppp_channel_index(struct ipw_network *network)
-{
- int ret = -1;
- unsigned long flags;
-
- spin_lock_irqsave(&network->lock, flags);
- if (network->ppp_channel != NULL)
- ret = ppp_channel_index(network->ppp_channel);
- spin_unlock_irqrestore(&network->lock, flags);
-
- return ret;
-}
-
-int ipwireless_ppp_unit_number(struct ipw_network *network)
-{
- int ret = -1;
- unsigned long flags;
-
- spin_lock_irqsave(&network->lock, flags);
- if (network->ppp_channel != NULL)
- ret = ppp_unit_number(network->ppp_channel);
- spin_unlock_irqrestore(&network->lock, flags);
-
- return ret;
-}
-
-int ipwireless_ppp_mru(const struct ipw_network *network)
-{
- return network->mru;
-}
diff --git a/drivers/char/pcmcia/ipwireless/network.h b/drivers/char/pcmcia/ipwireless/network.h
deleted file mode 100644
index 561f765b333..00000000000
--- a/drivers/char/pcmcia/ipwireless/network.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#ifndef _IPWIRELESS_CS_NETWORK_H_
-#define _IPWIRELESS_CS_NETWORK_H_
-
-#include <linux/types.h>
-
-struct ipw_network;
-struct ipw_tty;
-struct ipw_hardware;
-
-/* Definitions of the different channels on the PCMCIA UE */
-#define IPW_CHANNEL_RAS 0
-#define IPW_CHANNEL_DIALLER 1
-#define IPW_CHANNEL_CONSOLE 2
-#define NO_OF_IPW_CHANNELS 5
-
-void ipwireless_network_notify_control_line_change(struct ipw_network *net,
- unsigned int channel_idx, unsigned int control_lines,
- unsigned int control_mask);
-void ipwireless_network_packet_received(struct ipw_network *net,
- unsigned int channel_idx, unsigned char *data,
- unsigned int length);
-struct ipw_network *ipwireless_network_create(struct ipw_hardware *hw);
-void ipwireless_network_free(struct ipw_network *net);
-void ipwireless_associate_network_tty(struct ipw_network *net,
- unsigned int channel_idx, struct ipw_tty *tty);
-void ipwireless_disassociate_network_ttys(struct ipw_network *net,
- unsigned int channel_idx);
-
-void ipwireless_ppp_open(struct ipw_network *net);
-
-void ipwireless_ppp_close(struct ipw_network *net);
-int ipwireless_ppp_channel_index(struct ipw_network *net);
-int ipwireless_ppp_unit_number(struct ipw_network *net);
-int ipwireless_ppp_mru(const struct ipw_network *net);
-
-#endif
diff --git a/drivers/char/pcmcia/ipwireless/setup_protocol.h b/drivers/char/pcmcia/ipwireless/setup_protocol.h
deleted file mode 100644
index 9d6bcc77c73..00000000000
--- a/drivers/char/pcmcia/ipwireless/setup_protocol.h
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#ifndef _IPWIRELESS_CS_SETUP_PROTOCOL_H_
-#define _IPWIRELESS_CS_SETUP_PROTOCOL_H_
-
-/* Version of the setup protocol and transport protocols */
-#define TL_SETUP_VERSION 1
-
-#define TL_SETUP_VERSION_QRY_TMO 1000
-#define TL_SETUP_MAX_VERSION_QRY 30
-
-/* Message numbers 0-9 are obsoleted and must not be reused! */
-#define TL_SETUP_SIGNO_GET_VERSION_QRY 10
-#define TL_SETUP_SIGNO_GET_VERSION_RSP 11
-#define TL_SETUP_SIGNO_CONFIG_MSG 12
-#define TL_SETUP_SIGNO_CONFIG_DONE_MSG 13
-#define TL_SETUP_SIGNO_OPEN_MSG 14
-#define TL_SETUP_SIGNO_CLOSE_MSG 15
-
-#define TL_SETUP_SIGNO_INFO_MSG 20
-#define TL_SETUP_SIGNO_INFO_MSG_ACK 21
-
-#define TL_SETUP_SIGNO_REBOOT_MSG 22
-#define TL_SETUP_SIGNO_REBOOT_MSG_ACK 23
-
-/* Synchronous start-messages */
-struct tl_setup_get_version_qry {
- unsigned char sig_no; /* TL_SETUP_SIGNO_GET_VERSION_QRY */
-} __attribute__ ((__packed__));
-
-struct tl_setup_get_version_rsp {
- unsigned char sig_no; /* TL_SETUP_SIGNO_GET_VERSION_RSP */
- unsigned char version; /* TL_SETUP_VERSION */
-} __attribute__ ((__packed__));
-
-struct tl_setup_config_msg {
- unsigned char sig_no; /* TL_SETUP_SIGNO_CONFIG_MSG */
- unsigned char port_no;
- unsigned char prio_data;
- unsigned char prio_ctrl;
-} __attribute__ ((__packed__));
-
-struct tl_setup_config_done_msg {
- unsigned char sig_no; /* TL_SETUP_SIGNO_CONFIG_DONE_MSG */
-} __attribute__ ((__packed__));
-
-/* Asyncronous messages */
-struct tl_setup_open_msg {
- unsigned char sig_no; /* TL_SETUP_SIGNO_OPEN_MSG */
- unsigned char port_no;
-} __attribute__ ((__packed__));
-
-struct tl_setup_close_msg {
- unsigned char sig_no; /* TL_SETUP_SIGNO_CLOSE_MSG */
- unsigned char port_no;
-} __attribute__ ((__packed__));
-
-/* Driver type - for use in tl_setup_info_msg.driver_type */
-#define COMM_DRIVER 0
-#define NDISWAN_DRIVER 1
-#define NDISWAN_DRIVER_MAJOR_VERSION 2
-#define NDISWAN_DRIVER_MINOR_VERSION 0
-
-/*
- * It should not matter when this message comes over as we just store the
- * results and send the ACK.
- */
-struct tl_setup_info_msg {
- unsigned char sig_no; /* TL_SETUP_SIGNO_INFO_MSG */
- unsigned char driver_type;
- unsigned char major_version;
- unsigned char minor_version;
-} __attribute__ ((__packed__));
-
-struct tl_setup_info_msgAck {
- unsigned char sig_no; /* TL_SETUP_SIGNO_INFO_MSG_ACK */
-} __attribute__ ((__packed__));
-
-struct TlSetupRebootMsgAck {
- unsigned char sig_no; /* TL_SETUP_SIGNO_REBOOT_MSG_ACK */
-} __attribute__ ((__packed__));
-
-/* Define a union of all the msgs that the driver can receive from the card.*/
-union ipw_setup_rx_msg {
- unsigned char sig_no;
- struct tl_setup_get_version_rsp version_rsp_msg;
- struct tl_setup_open_msg open_msg;
- struct tl_setup_close_msg close_msg;
- struct tl_setup_info_msg InfoMsg;
- struct tl_setup_info_msgAck info_msg_ack;
-} __attribute__ ((__packed__));
-
-#endif /* _IPWIRELESS_CS_SETUP_PROTOCOL_H_ */
diff --git a/drivers/char/pcmcia/ipwireless/tty.c b/drivers/char/pcmcia/ipwireless/tty.c
deleted file mode 100644
index f5eb28b6cb0..00000000000
--- a/drivers/char/pcmcia/ipwireless/tty.c
+++ /dev/null
@@ -1,679 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/ppp_defs.h>
-#include <linux/if.h>
-#include <linux/if_ppp.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/slab.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/uaccess.h>
-
-#include "tty.h"
-#include "network.h"
-#include "hardware.h"
-#include "main.h"
-
-#define IPWIRELESS_PCMCIA_START (0)
-#define IPWIRELESS_PCMCIA_MINORS (24)
-#define IPWIRELESS_PCMCIA_MINOR_RANGE (8)
-
-#define TTYTYPE_MODEM (0)
-#define TTYTYPE_MONITOR (1)
-#define TTYTYPE_RAS_RAW (2)
-
-struct ipw_tty {
- int index;
- struct ipw_hardware *hardware;
- unsigned int channel_idx;
- unsigned int secondary_channel_idx;
- int tty_type;
- struct ipw_network *network;
- struct tty_struct *linux_tty;
- int open_count;
- unsigned int control_lines;
- struct mutex ipw_tty_mutex;
- int tx_bytes_queued;
- int closing;
-};
-
-static struct ipw_tty *ttys[IPWIRELESS_PCMCIA_MINORS];
-
-static struct tty_driver *ipw_tty_driver;
-
-static char *tty_type_name(int tty_type)
-{
- static char *channel_names[] = {
- "modem",
- "monitor",
- "RAS-raw"
- };
-
- return channel_names[tty_type];
-}
-
-static void report_registering(struct ipw_tty *tty)
-{
- char *iftype = tty_type_name(tty->tty_type);
-
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": registering %s device ttyIPWp%d\n", iftype, tty->index);
-}
-
-static void report_deregistering(struct ipw_tty *tty)
-{
- char *iftype = tty_type_name(tty->tty_type);
-
- printk(KERN_INFO IPWIRELESS_PCCARD_NAME
- ": deregistering %s device ttyIPWp%d\n", iftype,
- tty->index);
-}
-
-static struct ipw_tty *get_tty(int minor)
-{
- if (minor < ipw_tty_driver->minor_start
- || minor >= ipw_tty_driver->minor_start +
- IPWIRELESS_PCMCIA_MINORS)
- return NULL;
- else {
- int minor_offset = minor - ipw_tty_driver->minor_start;
-
- /*
- * The 'ras_raw' channel is only available when 'loopback' mode
- * is enabled.
- * Number of minor starts with 16 (_RANGE * _RAS_RAW).
- */
- if (!ipwireless_loopback &&
- minor_offset >=
- IPWIRELESS_PCMCIA_MINOR_RANGE * TTYTYPE_RAS_RAW)
- return NULL;
-
- return ttys[minor_offset];
- }
-}
-
-static int ipw_open(struct tty_struct *linux_tty, struct file *filp)
-{
- int minor = linux_tty->index;
- struct ipw_tty *tty = get_tty(minor);
-
- if (!tty)
- return -ENODEV;
-
- mutex_lock(&tty->ipw_tty_mutex);
-
- if (tty->closing) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return -ENODEV;
- }
- if (tty->open_count == 0)
- tty->tx_bytes_queued = 0;
-
- tty->open_count++;
-
- tty->linux_tty = linux_tty;
- linux_tty->driver_data = tty;
- linux_tty->low_latency = 1;
-
- if (tty->tty_type == TTYTYPE_MODEM)
- ipwireless_ppp_open(tty->network);
-
- mutex_unlock(&tty->ipw_tty_mutex);
-
- return 0;
-}
-
-static void do_ipw_close(struct ipw_tty *tty)
-{
- tty->open_count--;
-
- if (tty->open_count == 0) {
- struct tty_struct *linux_tty = tty->linux_tty;
-
- if (linux_tty != NULL) {
- tty->linux_tty = NULL;
- linux_tty->driver_data = NULL;
-
- if (tty->tty_type == TTYTYPE_MODEM)
- ipwireless_ppp_close(tty->network);
- }
- }
-}
-
-static void ipw_hangup(struct tty_struct *linux_tty)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
-
- if (!tty)
- return;
-
- mutex_lock(&tty->ipw_tty_mutex);
- if (tty->open_count == 0) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return;
- }
-
- do_ipw_close(tty);
-
- mutex_unlock(&tty->ipw_tty_mutex);
-}
-
-static void ipw_close(struct tty_struct *linux_tty, struct file *filp)
-{
- ipw_hangup(linux_tty);
-}
-
-/* Take data received from hardware, and send it out the tty */
-void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
- unsigned int length)
-{
- struct tty_struct *linux_tty;
- int work = 0;
-
- mutex_lock(&tty->ipw_tty_mutex);
- linux_tty = tty->linux_tty;
- if (linux_tty == NULL) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return;
- }
-
- if (!tty->open_count) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return;
- }
- mutex_unlock(&tty->ipw_tty_mutex);
-
- work = tty_insert_flip_string(linux_tty, data, length);
-
- if (work != length)
- printk(KERN_DEBUG IPWIRELESS_PCCARD_NAME
- ": %d chars not inserted to flip buffer!\n",
- length - work);
-
- /*
- * This may sleep if ->low_latency is set
- */
- if (work)
- tty_flip_buffer_push(linux_tty);
-}
-
-static void ipw_write_packet_sent_callback(void *callback_data,
- unsigned int packet_length)
-{
- struct ipw_tty *tty = callback_data;
-
- /*
- * Packet has been sent, so we subtract the number of bytes from our
- * tally of outstanding TX bytes.
- */
- tty->tx_bytes_queued -= packet_length;
-}
-
-static int ipw_write(struct tty_struct *linux_tty,
- const unsigned char *buf, int count)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
- int room, ret;
-
- if (!tty)
- return -ENODEV;
-
- mutex_lock(&tty->ipw_tty_mutex);
- if (!tty->open_count) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return -EINVAL;
- }
-
- room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
- if (room < 0)
- room = 0;
- /* Don't allow caller to write any more than we have room for */
- if (count > room)
- count = room;
-
- if (count == 0) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return 0;
- }
-
- ret = ipwireless_send_packet(tty->hardware, IPW_CHANNEL_RAS,
- buf, count,
- ipw_write_packet_sent_callback, tty);
- if (ret == -1) {
- mutex_unlock(&tty->ipw_tty_mutex);
- return 0;
- }
-
- tty->tx_bytes_queued += count;
- mutex_unlock(&tty->ipw_tty_mutex);
-
- return count;
-}
-
-static int ipw_write_room(struct tty_struct *linux_tty)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
- int room;
-
- /* FIXME: Exactly how is the tty object locked here .. */
- if (!tty)
- return -ENODEV;
-
- if (!tty->open_count)
- return -EINVAL;
-
- room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued;
- if (room < 0)
- room = 0;
-
- return room;
-}
-
-static int ipwireless_get_serial_info(struct ipw_tty *tty,
- struct serial_struct __user *retinfo)
-{
- struct serial_struct tmp;
-
- if (!retinfo)
- return (-EFAULT);
-
- memset(&tmp, 0, sizeof(tmp));
- tmp.type = PORT_UNKNOWN;
- tmp.line = tty->index;
- tmp.port = 0;
- tmp.irq = 0;
- tmp.flags = 0;
- tmp.baud_base = 115200;
- tmp.close_delay = 0;
- tmp.closing_wait = 0;
- tmp.custom_divisor = 0;
- tmp.hub6 = 0;
- if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
- return -EFAULT;
-
- return 0;
-}
-
-static int ipw_chars_in_buffer(struct tty_struct *linux_tty)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
-
- if (!tty)
- return 0;
-
- if (!tty->open_count)
- return 0;
-
- return tty->tx_bytes_queued;
-}
-
-static int get_control_lines(struct ipw_tty *tty)
-{
- unsigned int my = tty->control_lines;
- unsigned int out = 0;
-
- if (my & IPW_CONTROL_LINE_RTS)
- out |= TIOCM_RTS;
- if (my & IPW_CONTROL_LINE_DTR)
- out |= TIOCM_DTR;
- if (my & IPW_CONTROL_LINE_CTS)
- out |= TIOCM_CTS;
- if (my & IPW_CONTROL_LINE_DSR)
- out |= TIOCM_DSR;
- if (my & IPW_CONTROL_LINE_DCD)
- out |= TIOCM_CD;
-
- return out;
-}
-
-static int set_control_lines(struct ipw_tty *tty, unsigned int set,
- unsigned int clear)
-{
- int ret;
-
- if (set & TIOCM_RTS) {
- ret = ipwireless_set_RTS(tty->hardware, tty->channel_idx, 1);
- if (ret)
- return ret;
- if (tty->secondary_channel_idx != -1) {
- ret = ipwireless_set_RTS(tty->hardware,
- tty->secondary_channel_idx, 1);
- if (ret)
- return ret;
- }
- }
- if (set & TIOCM_DTR) {
- ret = ipwireless_set_DTR(tty->hardware, tty->channel_idx, 1);
- if (ret)
- return ret;
- if (tty->secondary_channel_idx != -1) {
- ret = ipwireless_set_DTR(tty->hardware,
- tty->secondary_channel_idx, 1);
- if (ret)
- return ret;
- }
- }
- if (clear & TIOCM_RTS) {
- ret = ipwireless_set_RTS(tty->hardware, tty->channel_idx, 0);
- if (tty->secondary_channel_idx != -1) {
- ret = ipwireless_set_RTS(tty->hardware,
- tty->secondary_channel_idx, 0);
- if (ret)
- return ret;
- }
- }
- if (clear & TIOCM_DTR) {
- ret = ipwireless_set_DTR(tty->hardware, tty->channel_idx, 0);
- if (tty->secondary_channel_idx != -1) {
- ret = ipwireless_set_DTR(tty->hardware,
- tty->secondary_channel_idx, 0);
- if (ret)
- return ret;
- }
- }
- return 0;
-}
-
-static int ipw_tiocmget(struct tty_struct *linux_tty, struct file *file)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
- /* FIXME: Exactly how is the tty object locked here .. */
-
- if (!tty)
- return -ENODEV;
-
- if (!tty->open_count)
- return -EINVAL;
-
- return get_control_lines(tty);
-}
-
-static int
-ipw_tiocmset(struct tty_struct *linux_tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
- /* FIXME: Exactly how is the tty object locked here .. */
-
- if (!tty)
- return -ENODEV;
-
- if (!tty->open_count)
- return -EINVAL;
-
- return set_control_lines(tty, set, clear);
-}
-
-static int ipw_ioctl(struct tty_struct *linux_tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct ipw_tty *tty = linux_tty->driver_data;
-
- if (!tty)
- return -ENODEV;
-
- if (!tty->open_count)
- return -EINVAL;
-
- /* FIXME: Exactly how is the tty object locked here .. */
-
- switch (cmd) {
- case TIOCGSERIAL:
- return ipwireless_get_serial_info(tty, (void __user *) arg);
-
- case TIOCSSERIAL:
- return 0; /* Keeps the PCMCIA scripts happy. */
- }
-
- if (tty->tty_type == TTYTYPE_MODEM) {
- switch (cmd) {
- case PPPIOCGCHAN:
- {
- int chan = ipwireless_ppp_channel_index(
- tty->network);
-
- if (chan < 0)
- return -ENODEV;
- if (put_user(chan, (int __user *) arg))
- return -EFAULT;
- }
- return 0;
-
- case PPPIOCGUNIT:
- {
- int unit = ipwireless_ppp_unit_number(
- tty->network);
-
- if (unit < 0)
- return -ENODEV;
- if (put_user(unit, (int __user *) arg))
- return -EFAULT;
- }
- return 0;
-
- case FIONREAD:
- {
- int val = 0;
-
- if (put_user(val, (int __user *) arg))
- return -EFAULT;
- }
- return 0;
- case TCFLSH:
- return tty_perform_flush(linux_tty, arg);
- }
- }
- return tty_mode_ioctl(linux_tty, file, cmd , arg);
-}
-
-static int add_tty(int j,
- struct ipw_hardware *hardware,
- struct ipw_network *network, int channel_idx,
- int secondary_channel_idx, int tty_type)
-{
- ttys[j] = kzalloc(sizeof(struct ipw_tty), GFP_KERNEL);
- if (!ttys[j])
- return -ENOMEM;
- ttys[j]->index = j;
- ttys[j]->hardware = hardware;
- ttys[j]->channel_idx = channel_idx;
- ttys[j]->secondary_channel_idx = secondary_channel_idx;
- ttys[j]->network = network;
- ttys[j]->tty_type = tty_type;
- mutex_init(&ttys[j]->ipw_tty_mutex);
-
- tty_register_device(ipw_tty_driver, j, NULL);
- ipwireless_associate_network_tty(network, channel_idx, ttys[j]);
-
- if (secondary_channel_idx != -1)
- ipwireless_associate_network_tty(network,
- secondary_channel_idx,
- ttys[j]);
- if (get_tty(j + ipw_tty_driver->minor_start) == ttys[j])
- report_registering(ttys[j]);
- return 0;
-}
-
-struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hardware,
- struct ipw_network *network)
-{
- int i, j;
-
- for (i = 0; i < IPWIRELESS_PCMCIA_MINOR_RANGE; i++) {
- int allfree = 1;
-
- for (j = i; j < IPWIRELESS_PCMCIA_MINORS;
- j += IPWIRELESS_PCMCIA_MINOR_RANGE)
- if (ttys[j] != NULL) {
- allfree = 0;
- break;
- }
-
- if (allfree) {
- j = i;
-
- if (add_tty(j, hardware, network,
- IPW_CHANNEL_DIALLER, IPW_CHANNEL_RAS,
- TTYTYPE_MODEM))
- return NULL;
-
- j += IPWIRELESS_PCMCIA_MINOR_RANGE;
- if (add_tty(j, hardware, network,
- IPW_CHANNEL_DIALLER, -1,
- TTYTYPE_MONITOR))
- return NULL;
-
- j += IPWIRELESS_PCMCIA_MINOR_RANGE;
- if (add_tty(j, hardware, network,
- IPW_CHANNEL_RAS, -1,
- TTYTYPE_RAS_RAW))
- return NULL;
-
- return ttys[i];
- }
- }
- return NULL;
-}
-
-/*
- * Must be called before ipwireless_network_free().
- */
-void ipwireless_tty_free(struct ipw_tty *tty)
-{
- int j;
- struct ipw_network *network = ttys[tty->index]->network;
-
- for (j = tty->index; j < IPWIRELESS_PCMCIA_MINORS;
- j += IPWIRELESS_PCMCIA_MINOR_RANGE) {
- struct ipw_tty *ttyj = ttys[j];
-
- if (ttyj) {
- mutex_lock(&ttyj->ipw_tty_mutex);
- if (get_tty(j + ipw_tty_driver->minor_start) == ttyj)
- report_deregistering(ttyj);
- ttyj->closing = 1;
- if (ttyj->linux_tty != NULL) {
- mutex_unlock(&ttyj->ipw_tty_mutex);
- tty_hangup(ttyj->linux_tty);
- /* Wait till the tty_hangup has completed */
- flush_work_sync(&ttyj->linux_tty->hangup_work);
- /* FIXME: Exactly how is the tty object locked here
- against a parallel ioctl etc */
- mutex_lock(&ttyj->ipw_tty_mutex);
- }
- while (ttyj->open_count)
- do_ipw_close(ttyj);
- ipwireless_disassociate_network_ttys(network,
- ttyj->channel_idx);
- tty_unregister_device(ipw_tty_driver, j);
- ttys[j] = NULL;
- mutex_unlock(&ttyj->ipw_tty_mutex);
- kfree(ttyj);
- }
- }
-}
-
-static const struct tty_operations tty_ops = {
- .open = ipw_open,
- .close = ipw_close,
- .hangup = ipw_hangup,
- .write = ipw_write,
- .write_room = ipw_write_room,
- .ioctl = ipw_ioctl,
- .chars_in_buffer = ipw_chars_in_buffer,
- .tiocmget = ipw_tiocmget,
- .tiocmset = ipw_tiocmset,
-};
-
-int ipwireless_tty_init(void)
-{
- int result;
-
- ipw_tty_driver = alloc_tty_driver(IPWIRELESS_PCMCIA_MINORS);
- if (!ipw_tty_driver)
- return -ENOMEM;
-
- ipw_tty_driver->owner = THIS_MODULE;
- ipw_tty_driver->driver_name = IPWIRELESS_PCCARD_NAME;
- ipw_tty_driver->name = "ttyIPWp";
- ipw_tty_driver->major = 0;
- ipw_tty_driver->minor_start = IPWIRELESS_PCMCIA_START;
- ipw_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
- ipw_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- ipw_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- ipw_tty_driver->init_termios = tty_std_termios;
- ipw_tty_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- ipw_tty_driver->init_termios.c_ispeed = 9600;
- ipw_tty_driver->init_termios.c_ospeed = 9600;
- tty_set_operations(ipw_tty_driver, &tty_ops);
- result = tty_register_driver(ipw_tty_driver);
- if (result) {
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": failed to register tty driver\n");
- put_tty_driver(ipw_tty_driver);
- return result;
- }
-
- return 0;
-}
-
-void ipwireless_tty_release(void)
-{
- int ret;
-
- ret = tty_unregister_driver(ipw_tty_driver);
- put_tty_driver(ipw_tty_driver);
- if (ret != 0)
- printk(KERN_ERR IPWIRELESS_PCCARD_NAME
- ": tty_unregister_driver failed with code %d\n", ret);
-}
-
-int ipwireless_tty_is_modem(struct ipw_tty *tty)
-{
- return tty->tty_type == TTYTYPE_MODEM;
-}
-
-void
-ipwireless_tty_notify_control_line_change(struct ipw_tty *tty,
- unsigned int channel_idx,
- unsigned int control_lines,
- unsigned int changed_mask)
-{
- unsigned int old_control_lines = tty->control_lines;
-
- tty->control_lines = (tty->control_lines & ~changed_mask)
- | (control_lines & changed_mask);
-
- /*
- * If DCD is de-asserted, we close the tty so pppd can tell that we
- * have gone offline.
- */
- if ((old_control_lines & IPW_CONTROL_LINE_DCD)
- && !(tty->control_lines & IPW_CONTROL_LINE_DCD)
- && tty->linux_tty) {
- tty_hangup(tty->linux_tty);
- }
-}
-
diff --git a/drivers/char/pcmcia/ipwireless/tty.h b/drivers/char/pcmcia/ipwireless/tty.h
deleted file mode 100644
index 747b2d63786..00000000000
--- a/drivers/char/pcmcia/ipwireless/tty.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * IPWireless 3G PCMCIA Network Driver
- *
- * Original code
- * by Stephen Blackheath <stephen@blacksapphire.com>,
- * Ben Martel <benm@symmetric.co.nz>
- *
- * Copyrighted as follows:
- * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
- *
- * Various driver changes and rewrites, port to new kernels
- * Copyright (C) 2006-2007 Jiri Kosina
- *
- * Misc code cleanups and updates
- * Copyright (C) 2007 David Sterba
- */
-
-#ifndef _IPWIRELESS_CS_TTY_H_
-#define _IPWIRELESS_CS_TTY_H_
-
-#include <linux/types.h>
-#include <linux/sched.h>
-
-#include <pcmcia/cistpl.h>
-#include <pcmcia/ds.h>
-
-struct ipw_tty;
-struct ipw_network;
-struct ipw_hardware;
-
-int ipwireless_tty_init(void);
-void ipwireless_tty_release(void);
-
-struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hw,
- struct ipw_network *net);
-void ipwireless_tty_free(struct ipw_tty *tty);
-void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data,
- unsigned int length);
-int ipwireless_tty_is_modem(struct ipw_tty *tty);
-void ipwireless_tty_notify_control_line_change(struct ipw_tty *tty,
- unsigned int channel_idx,
- unsigned int control_lines,
- unsigned int changed_mask);
-
-#endif
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index eaa41992fbe..beca80bb9bd 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -418,9 +418,9 @@ static void bh_status(MGSLPC_INFO *info);
/*
* ioctl handlers
*/
-static int tiocmget(struct tty_struct *tty, struct file *file);
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
+static int tiocmget(struct tty_struct *tty);
+static int tiocmset(struct tty_struct *tty,
+ unsigned int set, unsigned int clear);
static int get_stats(MGSLPC_INFO *info, struct mgsl_icount __user *user_icount);
static int get_params(MGSLPC_INFO *info, MGSL_PARAMS __user *user_params);
static int set_params(MGSLPC_INFO *info, MGSL_PARAMS __user *new_params, struct tty_struct *tty);
@@ -2114,7 +2114,7 @@ static int modem_input_wait(MGSLPC_INFO *info,int arg)
/* return the state of the serial control and status signals
*/
-static int tiocmget(struct tty_struct *tty, struct file *file)
+static int tiocmget(struct tty_struct *tty)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
unsigned int result;
@@ -2139,7 +2139,7 @@ static int tiocmget(struct tty_struct *tty, struct file *file)
/* set modem control signals (DTR/RTS)
*/
-static int tiocmset(struct tty_struct *tty, struct file *file,
+static int tiocmset(struct tty_struct *tty,
unsigned int set, unsigned int clear)
{
MGSLPC_INFO *info = (MGSLPC_INFO *)tty->driver_data;
@@ -2222,13 +2222,12 @@ static int mgslpc_get_icount(struct tty_struct *tty,
* Arguments:
*
* tty pointer to tty instance data
- * file pointer to associated file object for device
* cmd IOCTL command code
* arg command argument/context
*
* Return Value: 0 if success, otherwise error code
*/
-static int mgslpc_ioctl(struct tty_struct *tty, struct file * file,
+static int mgslpc_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
MGSLPC_INFO * info = (MGSLPC_INFO *)tty->driver_data;
diff --git a/drivers/char/rio/Makefile b/drivers/char/rio/Makefile
deleted file mode 100644
index 1661875883f..00000000000
--- a/drivers/char/rio/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-#
-# Makefile for the linux rio-subsystem.
-#
-# (C) R.E.Wolff@BitWizard.nl
-#
-# This file is GPL. See other files for the full Blurb. I'm lazy today.
-#
-
-obj-$(CONFIG_RIO) += rio.o
-
-rio-y := rio_linux.o rioinit.o rioboot.o riocmd.o rioctrl.o riointr.o \
- rioparam.o rioroute.o riotable.o riotty.o
diff --git a/drivers/char/rio/board.h b/drivers/char/rio/board.h
deleted file mode 100644
index bdea633a907..00000000000
--- a/drivers/char/rio/board.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : board.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:07
-** Retrieved : 11/6/98 11:34:20
-**
-** ident @(#)board.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_board_h__
-#define __rio_board_h__
-
-/*
-** board.h contains the definitions for the *hardware* of the host cards.
-** It describes the memory overlay for the dual port RAM area.
-*/
-
-#define DP_SRAM1_SIZE 0x7C00
-#define DP_SRAM2_SIZE 0x0200
-#define DP_SRAM3_SIZE 0x7000
-#define DP_SCRATCH_SIZE 0x1000
-#define DP_PARMMAP_ADDR 0x01FE /* offset into SRAM2 */
-#define DP_STARTUP_ADDR 0x01F8 /* offset into SRAM2 */
-
-/*
-** The shape of the Host Control area, at offset 0x7C00, Write Only
-*/
-struct s_Ctrl {
- u8 DpCtl; /* 7C00 */
- u8 Dp_Unused2_[127];
- u8 DpIntSet; /* 7C80 */
- u8 Dp_Unused3_[127];
- u8 DpTpuReset; /* 7D00 */
- u8 Dp_Unused4_[127];
- u8 DpIntReset; /* 7D80 */
- u8 Dp_Unused5_[127];
-};
-
-/*
-** The PROM data area on the host (0x7C00), Read Only
-*/
-struct s_Prom {
- u16 DpSlxCode[2];
- u16 DpRev;
- u16 Dp_Unused6_;
- u16 DpUniq[4];
- u16 DpJahre;
- u16 DpWoche;
- u16 DpHwFeature[5];
- u16 DpOemId;
- u16 DpSiggy[16];
-};
-
-/*
-** Union of the Ctrl and Prom areas
-*/
-union u_CtrlProm { /* This is the control/PROM area (0x7C00) */
- struct s_Ctrl DpCtrl;
- struct s_Prom DpProm;
-};
-
-/*
-** The top end of memory!
-*/
-struct s_ParmMapS { /* Area containing Parm Map Pointer */
- u8 Dp_Unused8_[DP_PARMMAP_ADDR];
- u16 DpParmMapAd;
-};
-
-struct s_StartUpS {
- u8 Dp_Unused9_[DP_STARTUP_ADDR];
- u8 Dp_LongJump[0x4];
- u8 Dp_Unused10_[2];
- u8 Dp_ShortJump[0x2];
-};
-
-union u_Sram2ParmMap { /* This is the top of memory (0x7E00-0x7FFF) */
- u8 DpSramMem[DP_SRAM2_SIZE];
- struct s_ParmMapS DpParmMapS;
- struct s_StartUpS DpStartUpS;
-};
-
-/*
-** This is the DP RAM overlay.
-*/
-struct DpRam {
- u8 DpSram1[DP_SRAM1_SIZE]; /* 0000 - 7BFF */
- union u_CtrlProm DpCtrlProm; /* 7C00 - 7DFF */
- union u_Sram2ParmMap DpSram2ParmMap; /* 7E00 - 7FFF */
- u8 DpScratch[DP_SCRATCH_SIZE]; /* 8000 - 8FFF */
- u8 DpSram3[DP_SRAM3_SIZE]; /* 9000 - FFFF */
-};
-
-#define DpControl DpCtrlProm.DpCtrl.DpCtl
-#define DpSetInt DpCtrlProm.DpCtrl.DpIntSet
-#define DpResetTpu DpCtrlProm.DpCtrl.DpTpuReset
-#define DpResetInt DpCtrlProm.DpCtrl.DpIntReset
-
-#define DpSlx DpCtrlProm.DpProm.DpSlxCode
-#define DpRevision DpCtrlProm.DpProm.DpRev
-#define DpUnique DpCtrlProm.DpProm.DpUniq
-#define DpYear DpCtrlProm.DpProm.DpJahre
-#define DpWeek DpCtrlProm.DpProm.DpWoche
-#define DpSignature DpCtrlProm.DpProm.DpSiggy
-
-#define DpParmMapR DpSram2ParmMap.DpParmMapS.DpParmMapAd
-#define DpSram2 DpSram2ParmMap.DpSramMem
-
-#endif
diff --git a/drivers/char/rio/cirrus.h b/drivers/char/rio/cirrus.h
deleted file mode 100644
index 5ab51679caa..00000000000
--- a/drivers/char/rio/cirrus.h
+++ /dev/null
@@ -1,210 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* CIRRUS.H *******
- ******* *******
- ****************************************************************************
-
- Author : Jeremy Rolls
- Date : 3 Aug 1990
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _cirrus_h
-#define _cirrus_h 1
-
-/* Bit fields for particular registers shared with driver */
-
-/* COR1 - driver and RTA */
-#define RIOC_COR1_ODD 0x80 /* Odd parity */
-#define RIOC_COR1_EVEN 0x00 /* Even parity */
-#define RIOC_COR1_NOP 0x00 /* No parity */
-#define RIOC_COR1_FORCE 0x20 /* Force parity */
-#define RIOC_COR1_NORMAL 0x40 /* With parity */
-#define RIOC_COR1_1STOP 0x00 /* 1 stop bit */
-#define RIOC_COR1_15STOP 0x04 /* 1.5 stop bits */
-#define RIOC_COR1_2STOP 0x08 /* 2 stop bits */
-#define RIOC_COR1_5BITS 0x00 /* 5 data bits */
-#define RIOC_COR1_6BITS 0x01 /* 6 data bits */
-#define RIOC_COR1_7BITS 0x02 /* 7 data bits */
-#define RIOC_COR1_8BITS 0x03 /* 8 data bits */
-
-#define RIOC_COR1_HOST 0xef /* Safe host bits */
-
-/* RTA only */
-#define RIOC_COR1_CINPCK 0x00 /* Check parity of received characters */
-#define RIOC_COR1_CNINPCK 0x10 /* Don't check parity */
-
-/* COR2 bits for both RTA and driver use */
-#define RIOC_COR2_IXANY 0x80 /* IXANY - any character is XON */
-#define RIOC_COR2_IXON 0x40 /* IXON - enable tx soft flowcontrol */
-#define RIOC_COR2_RTSFLOW 0x02 /* Enable tx hardware flow control */
-
-/* Additional driver bits */
-#define RIOC_COR2_HUPCL 0x20 /* Hang up on close */
-#define RIOC_COR2_CTSFLOW 0x04 /* Enable rx hardware flow control */
-#define RIOC_COR2_IXOFF 0x01 /* Enable rx software flow control */
-#define RIOC_COR2_DTRFLOW 0x08 /* Enable tx hardware flow control */
-
-/* RTA use only */
-#define RIOC_COR2_ETC 0x20 /* Embedded transmit options */
-#define RIOC_COR2_LOCAL 0x10 /* Local loopback mode */
-#define RIOC_COR2_REMOTE 0x08 /* Remote loopback mode */
-#define RIOC_COR2_HOST 0xc2 /* Safe host bits */
-
-/* COR3 - RTA use only */
-#define RIOC_COR3_SCDRNG 0x80 /* Enable special char detect for range */
-#define RIOC_COR3_SCD34 0x40 /* Special character detect for SCHR's 3 + 4 */
-#define RIOC_COR3_FCT 0x20 /* Flow control transparency */
-#define RIOC_COR3_SCD12 0x10 /* Special character detect for SCHR's 1 + 2 */
-#define RIOC_COR3_FIFO12 0x0c /* 12 chars for receive FIFO threshold */
-#define RIOC_COR3_FIFO10 0x0a /* 10 chars for receive FIFO threshold */
-#define RIOC_COR3_FIFO8 0x08 /* 8 chars for receive FIFO threshold */
-#define RIOC_COR3_FIFO6 0x06 /* 6 chars for receive FIFO threshold */
-
-#define RIOC_COR3_THRESHOLD RIOC_COR3_FIFO8 /* MUST BE LESS THAN MCOR_THRESHOLD */
-
-#define RIOC_COR3_DEFAULT (RIOC_COR3_FCT | RIOC_COR3_THRESHOLD)
- /* Default bits for COR3 */
-
-/* COR4 driver and RTA use */
-#define RIOC_COR4_IGNCR 0x80 /* Throw away CR's on input */
-#define RIOC_COR4_ICRNL 0x40 /* Map CR -> NL on input */
-#define RIOC_COR4_INLCR 0x20 /* Map NL -> CR on input */
-#define RIOC_COR4_IGNBRK 0x10 /* Ignore Break */
-#define RIOC_COR4_NBRKINT 0x08 /* No interrupt on break (-BRKINT) */
-#define RIOC_COR4_RAISEMOD 0x01 /* Raise modem output lines on non-zero baud */
-
-
-/* COR4 driver only */
-#define RIOC_COR4_IGNPAR 0x04 /* IGNPAR (ignore characters with errors) */
-#define RIOC_COR4_PARMRK 0x02 /* PARMRK */
-
-#define RIOC_COR4_HOST 0xf8 /* Safe host bits */
-
-/* COR4 RTA only */
-#define RIOC_COR4_CIGNPAR 0x02 /* Thrown away bad characters */
-#define RIOC_COR4_CPARMRK 0x04 /* PARMRK characters */
-#define RIOC_COR4_CNPARMRK 0x03 /* Don't PARMRK */
-
-/* COR5 driver and RTA use */
-#define RIOC_COR5_ISTRIP 0x80 /* Strip input chars to 7 bits */
-#define RIOC_COR5_LNE 0x40 /* Enable LNEXT processing */
-#define RIOC_COR5_CMOE 0x20 /* Match good and errored characters */
-#define RIOC_COR5_ONLCR 0x02 /* NL -> CR NL on output */
-#define RIOC_COR5_OCRNL 0x01 /* CR -> NL on output */
-
-/*
-** Spare bits - these are not used in the CIRRUS registers, so we use
-** them to set various other features.
-*/
-/*
-** tstop and tbusy indication
-*/
-#define RIOC_COR5_TSTATE_ON 0x08 /* Turn on monitoring of tbusy and tstop */
-#define RIOC_COR5_TSTATE_OFF 0x04 /* Turn off monitoring of tbusy and tstop */
-/*
-** TAB3
-*/
-#define RIOC_COR5_TAB3 0x10 /* TAB3 mode */
-
-#define RIOC_COR5_HOST 0xc3 /* Safe host bits */
-
-/* CCSR */
-#define RIOC_CCSR_TXFLOFF 0x04 /* Tx is xoffed */
-
-/* MSVR1 */
-/* NB. DTR / CD swapped from Cirrus spec as the pins are also reversed on the
- RTA. This is because otherwise DCD would get lost on the 1 parallel / 3
- serial option.
-*/
-#define RIOC_MSVR1_CD 0x80 /* CD (DSR on Cirrus) */
-#define RIOC_MSVR1_RTS 0x40 /* RTS (CTS on Cirrus) */
-#define RIOC_MSVR1_RI 0x20 /* RI */
-#define RIOC_MSVR1_DTR 0x10 /* DTR (CD on Cirrus) */
-#define RIOC_MSVR1_CTS 0x01 /* CTS output pin (RTS on Cirrus) */
-/* Next two used to indicate state of tbusy and tstop to driver */
-#define RIOC_MSVR1_TSTOP 0x08 /* Set if port flow controlled */
-#define RIOC_MSVR1_TEMPTY 0x04 /* Set if port tx buffer empty */
-
-#define RIOC_MSVR1_HOST 0xf3 /* The bits the host wants */
-
-/* Defines for the subscripts of a CONFIG packet */
-#define RIOC_CONFIG_COR1 1 /* Option register 1 */
-#define RIOC_CONFIG_COR2 2 /* Option register 2 */
-#define RIOC_CONFIG_COR4 3 /* Option register 4 */
-#define RIOC_CONFIG_COR5 4 /* Option register 5 */
-#define RIOC_CONFIG_TXXON 5 /* Tx XON character */
-#define RIOC_CONFIG_TXXOFF 6 /* Tx XOFF character */
-#define RIOC_CONFIG_RXXON 7 /* Rx XON character */
-#define RIOC_CONFIG_RXXOFF 8 /* Rx XOFF character */
-#define RIOC_CONFIG_LNEXT 9 /* LNEXT character */
-#define RIOC_CONFIG_TXBAUD 10 /* Tx baud rate */
-#define RIOC_CONFIG_RXBAUD 11 /* Rx baud rate */
-
-#define RIOC_PRE_EMPTIVE 0x80 /* Pre-emptive bit in command field */
-
-/* Packet types going from Host to remote - with the exception of OPEN, MOPEN,
- CONFIG, SBREAK and MEMDUMP the remaining bytes of the data array will not
- be used
-*/
-#define RIOC_OPEN 0x00 /* Open a port */
-#define RIOC_CONFIG 0x01 /* Configure a port */
-#define RIOC_MOPEN 0x02 /* Modem open (block for DCD) */
-#define RIOC_CLOSE 0x03 /* Close a port */
-#define RIOC_WFLUSH (0x04 | RIOC_PRE_EMPTIVE) /* Write flush */
-#define RIOC_RFLUSH (0x05 | RIOC_PRE_EMPTIVE) /* Read flush */
-#define RIOC_RESUME (0x06 | RIOC_PRE_EMPTIVE) /* Resume if xoffed */
-#define RIOC_SBREAK 0x07 /* Start break */
-#define RIOC_EBREAK 0x08 /* End break */
-#define RIOC_SUSPEND (0x09 | RIOC_PRE_EMPTIVE) /* Susp op (behave as tho xoffed) */
-#define RIOC_FCLOSE (0x0a | RIOC_PRE_EMPTIVE) /* Force close */
-#define RIOC_XPRINT 0x0b /* Xprint packet */
-#define RIOC_MBIS (0x0c | RIOC_PRE_EMPTIVE) /* Set modem lines */
-#define RIOC_MBIC (0x0d | RIOC_PRE_EMPTIVE) /* Clear modem lines */
-#define RIOC_MSET (0x0e | RIOC_PRE_EMPTIVE) /* Set modem lines */
-#define RIOC_PCLOSE 0x0f /* Pseudo close - Leaves rx/tx enabled */
-#define RIOC_MGET (0x10 | RIOC_PRE_EMPTIVE) /* Force update of modem status */
-#define RIOC_MEMDUMP (0x11 | RIOC_PRE_EMPTIVE) /* Send back mem from addr supplied */
-#define RIOC_READ_REGISTER (0x12 | RIOC_PRE_EMPTIVE) /* Read CD1400 register (debug) */
-
-/* "Command" packets going from remote to host COMPLETE and MODEM_STATUS
- use data[4] / data[3] to indicate current state and modem status respectively
-*/
-
-#define RIOC_COMPLETE (0x20 | RIOC_PRE_EMPTIVE)
- /* Command complete */
-#define RIOC_BREAK_RECEIVED (0x21 | RIOC_PRE_EMPTIVE)
- /* Break received */
-#define RIOC_MODEM_STATUS (0x22 | RIOC_PRE_EMPTIVE)
- /* Change in modem status */
-
-/* "Command" packet that could go either way - handshake wake-up */
-#define RIOC_HANDSHAKE (0x23 | RIOC_PRE_EMPTIVE)
- /* Wake-up to HOST / RTA */
-
-#endif
diff --git a/drivers/char/rio/cmdblk.h b/drivers/char/rio/cmdblk.h
deleted file mode 100644
index 9ed4f861675..00000000000
--- a/drivers/char/rio/cmdblk.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : cmdblk.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:09
-** Retrieved : 11/6/98 11:34:20
-**
-** ident @(#)cmdblk.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_cmdblk_h__
-#define __rio_cmdblk_h__
-
-/*
-** the structure of a command block, used to queue commands destined for
-** a rup.
-*/
-
-struct CmdBlk {
- struct CmdBlk *NextP; /* Pointer to next command block */
- struct PKT Packet; /* A packet, to copy to the rup */
- /* The func to call to check if OK */
- int (*PreFuncP) (unsigned long, struct CmdBlk *);
- int PreArg; /* The arg for the func */
- /* The func to call when completed */
- int (*PostFuncP) (unsigned long, struct CmdBlk *);
- int PostArg; /* The arg for the func */
-};
-
-#define NUM_RIO_CMD_BLKS (3 * (MAX_RUP * 4 + LINKS_PER_UNIT * 4))
-#endif
diff --git a/drivers/char/rio/cmdpkt.h b/drivers/char/rio/cmdpkt.h
deleted file mode 100644
index c1e7a279807..00000000000
--- a/drivers/char/rio/cmdpkt.h
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : cmdpkt.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:09
-** Retrieved : 11/6/98 11:34:20
-**
-** ident @(#)cmdpkt.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-#ifndef __rio_cmdpkt_h__
-#define __rio_cmdpkt_h__
-
-/*
-** overlays for the data area of a packet. Used in both directions
-** (to build a packet to send, and to interpret a packet that arrives)
-** and is very inconvenient for MIPS, so they appear as two separate
-** structures - those used for modifying/reading packets on the card
-** and those for modifying/reading packets in real memory, which have an _M
-** suffix.
-*/
-
-#define RTA_BOOT_DATA_SIZE (PKT_MAX_DATA_LEN-2)
-
-/*
-** The boot information packet looks like this:
-** This structure overlays a PktCmd->CmdData structure, and so starts
-** at Data[2] in the actual pkt!
-*/
-struct BootSequence {
- u16 NumPackets;
- u16 LoadBase;
- u16 CodeSize;
-};
-
-#define BOOT_SEQUENCE_LEN 8
-
-struct SamTop {
- u8 Unit;
- u8 Link;
-};
-
-struct CmdHdr {
- u8 PcCommand;
- union {
- u8 PcPhbNum;
- u8 PcLinkNum;
- u8 PcIDNum;
- } U0;
-};
-
-
-struct PktCmd {
- union {
- struct {
- struct CmdHdr CmdHdr;
- struct BootSequence PcBootSequence;
- } S1;
- struct {
- u16 PcSequence;
- u8 PcBootData[RTA_BOOT_DATA_SIZE];
- } S2;
- struct {
- u16 __crud__;
- u8 PcUniqNum[4]; /* this is really a uint. */
- u8 PcModuleTypes; /* what modules are fitted */
- } S3;
- struct {
- struct CmdHdr CmdHdr;
- u8 __undefined__;
- u8 PcModemStatus;
- u8 PcPortStatus;
- u8 PcSubCommand; /* commands like mem or register dump */
- u16 PcSubAddr; /* Address for command */
- u8 PcSubData[64]; /* Date area for command */
- } S4;
- struct {
- struct CmdHdr CmdHdr;
- u8 PcCommandText[1];
- u8 __crud__[20];
- u8 PcIDNum2; /* It had to go somewhere! */
- } S5;
- struct {
- struct CmdHdr CmdHdr;
- struct SamTop Topology[LINKS_PER_UNIT];
- } S6;
- } U1;
-};
-
-struct PktCmd_M {
- union {
- struct {
- struct {
- u8 PcCommand;
- union {
- u8 PcPhbNum;
- u8 PcLinkNum;
- u8 PcIDNum;
- } U0;
- } CmdHdr;
- struct {
- u16 NumPackets;
- u16 LoadBase;
- u16 CodeSize;
- } PcBootSequence;
- } S1;
- struct {
- u16 PcSequence;
- u8 PcBootData[RTA_BOOT_DATA_SIZE];
- } S2;
- struct {
- u16 __crud__;
- u8 PcUniqNum[4]; /* this is really a uint. */
- u8 PcModuleTypes; /* what modules are fitted */
- } S3;
- struct {
- u16 __cmd_hdr__;
- u8 __undefined__;
- u8 PcModemStatus;
- u8 PcPortStatus;
- u8 PcSubCommand;
- u16 PcSubAddr;
- u8 PcSubData[64];
- } S4;
- struct {
- u16 __cmd_hdr__;
- u8 PcCommandText[1];
- u8 __crud__[20];
- u8 PcIDNum2; /* Tacked on end */
- } S5;
- struct {
- u16 __cmd_hdr__;
- struct Top Topology[LINKS_PER_UNIT];
- } S6;
- } U1;
-};
-
-#define Command U1.S1.CmdHdr.PcCommand
-#define PhbNum U1.S1.CmdHdr.U0.PcPhbNum
-#define IDNum U1.S1.CmdHdr.U0.PcIDNum
-#define IDNum2 U1.S5.PcIDNum2
-#define LinkNum U1.S1.CmdHdr.U0.PcLinkNum
-#define Sequence U1.S2.PcSequence
-#define BootData U1.S2.PcBootData
-#define BootSequence U1.S1.PcBootSequence
-#define UniqNum U1.S3.PcUniqNum
-#define ModemStatus U1.S4.PcModemStatus
-#define PortStatus U1.S4.PcPortStatus
-#define SubCommand U1.S4.PcSubCommand
-#define SubAddr U1.S4.PcSubAddr
-#define SubData U1.S4.PcSubData
-#define CommandText U1.S5.PcCommandText
-#define RouteTopology U1.S6.Topology
-#define ModuleTypes U1.S3.PcModuleTypes
-
-#endif
diff --git a/drivers/char/rio/daemon.h b/drivers/char/rio/daemon.h
deleted file mode 100644
index 4af90323fd0..00000000000
--- a/drivers/char/rio/daemon.h
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : daemon.h
-** SID : 1.3
-** Last Modified : 11/6/98 11:34:09
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)daemon.h 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_daemon_h__
-#define __rio_daemon_h__
-
-
-/*
-** structures used on /dev/rio
-*/
-
-struct Error {
- unsigned int Error;
- unsigned int Entry;
- unsigned int Other;
-};
-
-struct DownLoad {
- char __user *DataP;
- unsigned int Count;
- unsigned int ProductCode;
-};
-
-/*
-** A few constants....
-*/
-#ifndef MAX_VERSION_LEN
-#define MAX_VERSION_LEN 256
-#endif
-
-#ifndef MAX_XP_CTRL_LEN
-#define MAX_XP_CTRL_LEN 16 /* ALSO IN PORT.H */
-#endif
-
-struct PortSetup {
- unsigned int From; /* Set/Clear XP & IXANY Control from this port.... */
- unsigned int To; /* .... to this port */
- unsigned int XpCps; /* at this speed */
- char XpOn[MAX_XP_CTRL_LEN]; /* this is the start string */
- char XpOff[MAX_XP_CTRL_LEN]; /* this is the stop string */
- u8 IxAny; /* enable/disable IXANY */
- u8 IxOn; /* enable/disable IXON */
- u8 Lock; /* lock port params */
- u8 Store; /* store params across closes */
- u8 Drain; /* close only when drained */
-};
-
-struct LpbReq {
- unsigned int Host;
- unsigned int Link;
- struct LPB __user *LpbP;
-};
-
-struct RupReq {
- unsigned int HostNum;
- unsigned int RupNum;
- struct RUP __user *RupP;
-};
-
-struct PortReq {
- unsigned int SysPort;
- struct Port __user *PortP;
-};
-
-struct StreamInfo {
- unsigned int SysPort;
- int RQueue;
- int WQueue;
-};
-
-struct HostReq {
- unsigned int HostNum;
- struct Host __user *HostP;
-};
-
-struct HostDpRam {
- unsigned int HostNum;
- struct DpRam __user *DpRamP;
-};
-
-struct DebugCtrl {
- unsigned int SysPort;
- unsigned int Debug;
- unsigned int Wait;
-};
-
-struct MapInfo {
- unsigned int FirstPort; /* 8 ports, starting from this (tty) number */
- unsigned int RtaUnique; /* reside on this RTA (unique number) */
-};
-
-struct MapIn {
- unsigned int NumEntries; /* How many port sets are we mapping? */
- struct MapInfo *MapInfoP; /* Pointer to (user space) info */
-};
-
-struct SendPack {
- unsigned int PortNum;
- unsigned char Len;
- unsigned char Data[PKT_MAX_DATA_LEN];
-};
-
-struct SpecialRupCmd {
- struct PKT Packet;
- unsigned short Host;
- unsigned short RupNum;
-};
-
-struct IdentifyRta {
- unsigned long RtaUnique;
- u8 ID;
-};
-
-struct KillNeighbour {
- unsigned long UniqueNum;
- u8 Link;
-};
-
-struct rioVersion {
- char version[MAX_VERSION_LEN];
- char relid[MAX_VERSION_LEN];
- int buildLevel;
- char buildDate[MAX_VERSION_LEN];
-};
-
-
-/*
-** RIOC commands are for the daemon type operations
-**
-** 09.12.1998 ARG - ESIL 0776 part fix
-** Definition for 'RIOC' also appears in rioioctl.h, so we'd better do a
-** #ifndef here first.
-** rioioctl.h also now has #define 'RIO_QUICK_CHECK' as this ioctl is now
-** allowed to be used by customers.
-*/
-#ifndef RIOC
-#define RIOC ('R'<<8)|('i'<<16)|('o'<<24)
-#endif
-
-/*
-** Boot stuff
-*/
-#define RIO_GET_TABLE (RIOC | 100)
-#define RIO_PUT_TABLE (RIOC | 101)
-#define RIO_ASSIGN_RTA (RIOC | 102)
-#define RIO_DELETE_RTA (RIOC | 103)
-#define RIO_HOST_FOAD (RIOC | 104)
-#define RIO_QUICK_CHECK (RIOC | 105)
-#define RIO_SIGNALS_ON (RIOC | 106)
-#define RIO_SIGNALS_OFF (RIOC | 107)
-#define RIO_CHANGE_NAME (RIOC | 108)
-#define RIO_DOWNLOAD (RIOC | 109)
-#define RIO_GET_LOG (RIOC | 110)
-#define RIO_SETUP_PORTS (RIOC | 111)
-#define RIO_ALL_MODEM (RIOC | 112)
-
-/*
-** card state, debug stuff
-*/
-#define RIO_NUM_HOSTS (RIOC | 120)
-#define RIO_HOST_LPB (RIOC | 121)
-#define RIO_HOST_RUP (RIOC | 122)
-#define RIO_HOST_PORT (RIOC | 123)
-#define RIO_PARMS (RIOC | 124)
-#define RIO_HOST_REQ (RIOC | 125)
-#define RIO_READ_CONFIG (RIOC | 126)
-#define RIO_SET_CONFIG (RIOC | 127)
-#define RIO_VERSID (RIOC | 128)
-#define RIO_FLAGS (RIOC | 129)
-#define RIO_SETDEBUG (RIOC | 130)
-#define RIO_GETDEBUG (RIOC | 131)
-#define RIO_READ_LEVELS (RIOC | 132)
-#define RIO_SET_FAST_BUS (RIOC | 133)
-#define RIO_SET_SLOW_BUS (RIOC | 134)
-#define RIO_SET_BYTE_MODE (RIOC | 135)
-#define RIO_SET_WORD_MODE (RIOC | 136)
-#define RIO_STREAM_INFO (RIOC | 137)
-#define RIO_START_POLLER (RIOC | 138)
-#define RIO_STOP_POLLER (RIOC | 139)
-#define RIO_LAST_ERROR (RIOC | 140)
-#define RIO_TICK (RIOC | 141)
-#define RIO_TOCK (RIOC | 241) /* I did this on purpose, you know. */
-#define RIO_SEND_PACKET (RIOC | 142)
-#define RIO_SET_BUSY (RIOC | 143)
-#define SPECIAL_RUP_CMD (RIOC | 144)
-#define RIO_FOAD_RTA (RIOC | 145)
-#define RIO_ZOMBIE_RTA (RIOC | 146)
-#define RIO_IDENTIFY_RTA (RIOC | 147)
-#define RIO_KILL_NEIGHBOUR (RIOC | 148)
-#define RIO_DEBUG_MEM (RIOC | 149)
-/*
-** 150 - 167 used..... See below
-*/
-#define RIO_GET_PORT_SETUP (RIOC | 168)
-#define RIO_RESUME (RIOC | 169)
-#define RIO_MESG (RIOC | 170)
-#define RIO_NO_MESG (RIOC | 171)
-#define RIO_WHAT_MESG (RIOC | 172)
-#define RIO_HOST_DPRAM (RIOC | 173)
-#define RIO_MAP_B50_TO_50 (RIOC | 174)
-#define RIO_MAP_B50_TO_57600 (RIOC | 175)
-#define RIO_MAP_B110_TO_110 (RIOC | 176)
-#define RIO_MAP_B110_TO_115200 (RIOC | 177)
-#define RIO_GET_PORT_PARAMS (RIOC | 178)
-#define RIO_SET_PORT_PARAMS (RIOC | 179)
-#define RIO_GET_PORT_TTY (RIOC | 180)
-#define RIO_SET_PORT_TTY (RIOC | 181)
-#define RIO_SYSLOG_ONLY (RIOC | 182)
-#define RIO_SYSLOG_CONS (RIOC | 183)
-#define RIO_CONS_ONLY (RIOC | 184)
-#define RIO_BLOCK_OPENS (RIOC | 185)
-
-/*
-** 02.03.1999 ARG - ESIL 0820 fix :
-** RIOBootMode is no longer use by the driver, so these ioctls
-** are now obsolete :
-**
-#define RIO_GET_BOOT_MODE (RIOC | 186)
-#define RIO_SET_BOOT_MODE (RIOC | 187)
-**
-*/
-
-#define RIO_MEM_DUMP (RIOC | 189)
-#define RIO_READ_REGISTER (RIOC | 190)
-#define RIO_GET_MODTYPE (RIOC | 191)
-#define RIO_SET_TIMER (RIOC | 192)
-#define RIO_READ_CHECK (RIOC | 196)
-#define RIO_WAITING_FOR_RESTART (RIOC | 197)
-#define RIO_BIND_RTA (RIOC | 198)
-#define RIO_GET_BINDINGS (RIOC | 199)
-#define RIO_PUT_BINDINGS (RIOC | 200)
-
-#define RIO_MAKE_DEV (RIOC | 201)
-#define RIO_MINOR (RIOC | 202)
-
-#define RIO_IDENTIFY_DRIVER (RIOC | 203)
-#define RIO_DISPLAY_HOST_CFG (RIOC | 204)
-
-
-/*
-** MAKE_DEV / MINOR stuff
-*/
-#define RIO_DEV_DIRECT 0x0000
-#define RIO_DEV_MODEM 0x0200
-#define RIO_DEV_XPRINT 0x0400
-#define RIO_DEV_MASK 0x0600
-
-/*
-** port management, xprint stuff
-*/
-#define rIOCN(N) (RIOC|(N))
-#define rIOCR(N,T) (RIOC|(N))
-#define rIOCW(N,T) (RIOC|(N))
-
-#define RIO_GET_XP_ON rIOCR(150,char[16]) /* start xprint string */
-#define RIO_SET_XP_ON rIOCW(151,char[16])
-#define RIO_GET_XP_OFF rIOCR(152,char[16]) /* finish xprint string */
-#define RIO_SET_XP_OFF rIOCW(153,char[16])
-#define RIO_GET_XP_CPS rIOCR(154,int) /* xprint CPS */
-#define RIO_SET_XP_CPS rIOCW(155,int)
-#define RIO_GET_IXANY rIOCR(156,int) /* ixany allowed? */
-#define RIO_SET_IXANY rIOCW(157,int)
-#define RIO_SET_IXANY_ON rIOCN(158) /* allow ixany */
-#define RIO_SET_IXANY_OFF rIOCN(159) /* disallow ixany */
-#define RIO_GET_MODEM rIOCR(160,int) /* port is modem/direct line? */
-#define RIO_SET_MODEM rIOCW(161,int)
-#define RIO_SET_MODEM_ON rIOCN(162) /* port is a modem */
-#define RIO_SET_MODEM_OFF rIOCN(163) /* port is direct */
-#define RIO_GET_IXON rIOCR(164,int) /* ixon allowed? */
-#define RIO_SET_IXON rIOCW(165,int)
-#define RIO_SET_IXON_ON rIOCN(166) /* allow ixon */
-#define RIO_SET_IXON_OFF rIOCN(167) /* disallow ixon */
-
-#define RIO_GET_SIVIEW ((('s')<<8) | 106) /* backwards compatible with SI */
-
-#define RIO_IOCTL_UNKNOWN -2
-
-#endif
diff --git a/drivers/char/rio/errors.h b/drivers/char/rio/errors.h
deleted file mode 100644
index bdb05234090..00000000000
--- a/drivers/char/rio/errors.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : errors.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:10
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)errors.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_errors_h__
-#define __rio_errors_h__
-
-/*
-** error codes
-*/
-
-#define NOTHING_WRONG_AT_ALL 0
-#define BAD_CHARACTER_IN_NAME 1
-#define TABLE_ENTRY_ISNT_PROPERLY_NULL 2
-#define UNKNOWN_HOST_NUMBER 3
-#define ZERO_RTA_ID 4
-#define BAD_RTA_ID 5
-#define DUPLICATED_RTA_ID 6
-#define DUPLICATE_UNIQUE_NUMBER 7
-#define BAD_TTY_NUMBER 8
-#define TTY_NUMBER_IN_USE 9
-#define NAME_USED_TWICE 10
-#define HOST_ID_NOT_ZERO 11
-#define BOOT_IN_PROGRESS 12
-#define COPYIN_FAILED 13
-#define HOST_FILE_TOO_LARGE 14
-#define COPYOUT_FAILED 15
-#define NOT_SUPER_USER 16
-#define RIO_ALREADY_POLLING 17
-
-#define ID_NUMBER_OUT_OF_RANGE 18
-#define PORT_NUMBER_OUT_OF_RANGE 19
-#define HOST_NUMBER_OUT_OF_RANGE 20
-#define RUP_NUMBER_OUT_OF_RANGE 21
-#define TTY_NUMBER_OUT_OF_RANGE 22
-#define LINK_NUMBER_OUT_OF_RANGE 23
-
-#define HOST_NOT_RUNNING 24
-#define IOCTL_COMMAND_UNKNOWN 25
-#define RIO_SYSTEM_HALTED 26
-#define WAIT_FOR_DRAIN_BROKEN 27
-#define PORT_NOT_MAPPED_INTO_SYSTEM 28
-#define EXCLUSIVE_USE_SET 29
-#define WAIT_FOR_NOT_CLOSING_BROKEN 30
-#define WAIT_FOR_PORT_TO_OPEN_BROKEN 31
-#define WAIT_FOR_CARRIER_BROKEN 32
-#define WAIT_FOR_NOT_IN_USE_BROKEN 33
-#define WAIT_FOR_CAN_ADD_COMMAND_BROKEN 34
-#define WAIT_FOR_ADD_COMMAND_BROKEN 35
-#define WAIT_FOR_NOT_PARAM_BROKEN 36
-#define WAIT_FOR_RETRY_BROKEN 37
-#define HOST_HAS_ALREADY_BEEN_BOOTED 38
-#define UNIT_IS_IN_USE 39
-#define COULDNT_FIND_ENTRY 40
-#define RTA_UNIQUE_NUMBER_ZERO 41
-#define CLOSE_COMMAND_FAILED 42
-#define WAIT_FOR_CLOSE_BROKEN 43
-#define CPS_VALUE_OUT_OF_RANGE 44
-#define ID_ALREADY_IN_USE 45
-#define SIGNALS_ALREADY_SET 46
-#define NOT_RECEIVING_PROCESS 47
-#define RTA_NUMBER_WRONG 48
-#define NO_SUCH_PRODUCT 49
-#define HOST_SYSPORT_BAD 50
-#define ID_NOT_TENTATIVE 51
-#define XPRINT_CPS_OUT_OF_RANGE 52
-#define NOT_ENOUGH_CORE_FOR_PCI_COPY 53
-
-
-#endif /* __rio_errors_h__ */
diff --git a/drivers/char/rio/func.h b/drivers/char/rio/func.h
deleted file mode 100644
index 078d44f85e4..00000000000
--- a/drivers/char/rio/func.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : func.h
-** SID : 1.3
-** Last Modified : 11/6/98 11:34:10
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)func.h 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __func_h_def
-#define __func_h_def
-
-#include <linux/kdev_t.h>
-
-/* rioboot.c */
-int RIOBootCodeRTA(struct rio_info *, struct DownLoad *);
-int RIOBootCodeHOST(struct rio_info *, struct DownLoad *);
-int RIOBootCodeUNKNOWN(struct rio_info *, struct DownLoad *);
-void msec_timeout(struct Host *);
-int RIOBootRup(struct rio_info *, unsigned int, struct Host *, struct PKT __iomem *);
-int RIOBootOk(struct rio_info *, struct Host *, unsigned long);
-int RIORtaBound(struct rio_info *, unsigned int);
-void rio_fill_host_slot(int, int, unsigned int, struct Host *);
-
-/* riocmd.c */
-int RIOFoadRta(struct Host *, struct Map *);
-int RIOZombieRta(struct Host *, struct Map *);
-int RIOCommandRta(struct rio_info *, unsigned long, int (*func) (struct Host *, struct Map *));
-int RIOIdentifyRta(struct rio_info *, void __user *);
-int RIOKillNeighbour(struct rio_info *, void __user *);
-int RIOSuspendBootRta(struct Host *, int, int);
-int RIOFoadWakeup(struct rio_info *);
-struct CmdBlk *RIOGetCmdBlk(void);
-void RIOFreeCmdBlk(struct CmdBlk *);
-int RIOQueueCmdBlk(struct Host *, unsigned int, struct CmdBlk *);
-void RIOPollHostCommands(struct rio_info *, struct Host *);
-int RIOWFlushMark(unsigned long, struct CmdBlk *);
-int RIORFlushEnable(unsigned long, struct CmdBlk *);
-int RIOUnUse(unsigned long, struct CmdBlk *);
-
-/* rioctrl.c */
-int riocontrol(struct rio_info *, dev_t, int, unsigned long, int);
-
-int RIOPreemptiveCmd(struct rio_info *, struct Port *, unsigned char);
-
-/* rioinit.c */
-void rioinit(struct rio_info *, struct RioHostInfo *);
-void RIOInitHosts(struct rio_info *, struct RioHostInfo *);
-void RIOISAinit(struct rio_info *, int);
-int RIODoAT(struct rio_info *, int, int);
-caddr_t RIOCheckForATCard(int);
-int RIOAssignAT(struct rio_info *, int, void __iomem *, int);
-int RIOBoardTest(unsigned long, void __iomem *, unsigned char, int);
-void RIOAllocDataStructs(struct rio_info *);
-void RIOSetupDataStructs(struct rio_info *);
-int RIODefaultName(struct rio_info *, struct Host *, unsigned int);
-struct rioVersion *RIOVersid(void);
-void RIOHostReset(unsigned int, struct DpRam __iomem *, unsigned int);
-
-/* riointr.c */
-void RIOTxEnable(char *);
-void RIOServiceHost(struct rio_info *, struct Host *);
-int riotproc(struct rio_info *, struct ttystatics *, int, int);
-
-/* rioparam.c */
-int RIOParam(struct Port *, int, int, int);
-int RIODelay(struct Port *PortP, int);
-int RIODelay_ni(struct Port *PortP, int);
-void ms_timeout(struct Port *);
-int can_add_transmit(struct PKT __iomem **, struct Port *);
-void add_transmit(struct Port *);
-void put_free_end(struct Host *, struct PKT __iomem *);
-int can_remove_receive(struct PKT __iomem **, struct Port *);
-void remove_receive(struct Port *);
-
-/* rioroute.c */
-int RIORouteRup(struct rio_info *, unsigned int, struct Host *, struct PKT __iomem *);
-void RIOFixPhbs(struct rio_info *, struct Host *, unsigned int);
-unsigned int GetUnitType(unsigned int);
-int RIOSetChange(struct rio_info *);
-int RIOFindFreeID(struct rio_info *, struct Host *, unsigned int *, unsigned int *);
-
-
-/* riotty.c */
-
-int riotopen(struct tty_struct *tty, struct file *filp);
-int riotclose(void *ptr);
-int riotioctl(struct rio_info *, struct tty_struct *, int, caddr_t);
-void ttyseth(struct Port *, struct ttystatics *, struct old_sgttyb *sg);
-
-/* riotable.c */
-int RIONewTable(struct rio_info *);
-int RIOApel(struct rio_info *);
-int RIODeleteRta(struct rio_info *, struct Map *);
-int RIOAssignRta(struct rio_info *, struct Map *);
-int RIOReMapPorts(struct rio_info *, struct Host *, struct Map *);
-int RIOChangeName(struct rio_info *, struct Map *);
-
-#if 0
-/* riodrvr.c */
-struct rio_info *rio_install(struct RioHostInfo *);
-int rio_uninstall(struct rio_info *);
-int rio_open(struct rio_info *, int, struct file *);
-int rio_close(struct rio_info *, struct file *);
-int rio_read(struct rio_info *, struct file *, char *, int);
-int rio_write(struct rio_info *, struct file *f, char *, int);
-int rio_ioctl(struct rio_info *, struct file *, int, char *);
-int rio_select(struct rio_info *, struct file *f, int, struct sel *);
-int rio_intr(char *);
-int rio_isr_thread(char *);
-struct rio_info *rio_info_store(int cmd, struct rio_info *p);
-#endif
-
-extern void rio_copy_to_card(void *from, void __iomem *to, int len);
-extern int rio_minor(struct tty_struct *tty);
-extern int rio_ismodem(struct tty_struct *tty);
-
-extern void rio_start_card_running(struct Host *HostP);
-
-#endif /* __func_h_def */
diff --git a/drivers/char/rio/host.h b/drivers/char/rio/host.h
deleted file mode 100644
index 78f24540c22..00000000000
--- a/drivers/char/rio/host.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : host.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:10
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)host.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_host_h__
-#define __rio_host_h__
-
-/*
-** the host structure - one per host card in the system.
-*/
-
-#define MAX_EXTRA_UNITS 64
-
-/*
-** Host data structure. This is used for the software equiv. of
-** the host.
-*/
-struct Host {
- struct pci_dev *pdev;
- unsigned char Type; /* RIO_EISA, RIO_MCA, ... */
- unsigned char Ivec; /* POLLED or ivec number */
- unsigned char Mode; /* Control stuff */
- unsigned char Slot; /* Slot */
- void __iomem *Caddr; /* KV address of DPRAM */
- struct DpRam __iomem *CardP; /* KV address of DPRAM, with overlay */
- unsigned long PaddrP; /* Phys. address of DPRAM */
- char Name[MAX_NAME_LEN]; /* The name of the host */
- unsigned int UniqueNum; /* host unique number */
- spinlock_t HostLock; /* Lock structure for MPX */
- unsigned int WorkToBeDone; /* set to true each interrupt */
- unsigned int InIntr; /* Being serviced? */
- unsigned int IntSrvDone; /* host's interrupt has been serviced */
- void (*Copy) (void *, void __iomem *, int); /* copy func */
- struct timer_list timer;
- /*
- ** I M P O R T A N T !
- **
- ** The rest of this data structure is cleared to zero after
- ** a RIO_HOST_FOAD command.
- */
-
- unsigned long Flags; /* Whats going down */
-#define RC_WAITING 0
-#define RC_STARTUP 1
-#define RC_RUNNING 2
-#define RC_STUFFED 3
-#define RC_READY 7
-#define RUN_STATE 7
-/*
-** Boot mode applies to the way in which hosts in this system will
-** boot RTAs
-*/
-#define RC_BOOT_ALL 0x8 /* Boot all RTAs attached */
-#define RC_BOOT_OWN 0x10 /* Only boot RTAs bound to this system */
-#define RC_BOOT_NONE 0x20 /* Don't boot any RTAs (slave mode) */
-
- struct Top Topology[LINKS_PER_UNIT]; /* one per link */
- struct Map Mapping[MAX_RUP]; /* Mappings for host */
- struct PHB __iomem *PhbP; /* Pointer to the PHB array */
- unsigned short __iomem *PhbNumP; /* Ptr to Number of PHB's */
- struct LPB __iomem *LinkStrP; /* Link Structure Array */
- struct RUP __iomem *RupP; /* Sixteen real rups here */
- struct PARM_MAP __iomem *ParmMapP; /* points to the parmmap */
- unsigned int ExtraUnits[MAX_EXTRA_UNITS]; /* unknown things */
- unsigned int NumExtraBooted; /* how many of the above */
- /*
- ** Twenty logical rups.
- ** The first sixteen are the real Rup entries (above), the last four
- ** are the link RUPs.
- */
- struct UnixRup UnixRups[MAX_RUP + LINKS_PER_UNIT];
- int timeout_id; /* For calling 100 ms delays */
- int timeout_sem; /* For calling 100 ms delays */
- unsigned long locks; /* long req'd for set_bit --RR */
- char ____end_marker____;
-};
-#define Control CardP->DpControl
-#define SetInt CardP->DpSetInt
-#define ResetTpu CardP->DpResetTpu
-#define ResetInt CardP->DpResetInt
-#define Signature CardP->DpSignature
-#define Sram1 CardP->DpSram1
-#define Sram2 CardP->DpSram2
-#define Sram3 CardP->DpSram3
-#define Scratch CardP->DpScratch
-#define __ParmMapR CardP->DpParmMapR
-#define SLX CardP->DpSlx
-#define Revision CardP->DpRevision
-#define Unique CardP->DpUnique
-#define Year CardP->DpYear
-#define Week CardP->DpWeek
-
-#define RIO_DUMBPARM 0x0860 /* what not to expect */
-
-#endif
diff --git a/drivers/char/rio/link.h b/drivers/char/rio/link.h
deleted file mode 100644
index f3bf11a04d4..00000000000
--- a/drivers/char/rio/link.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* L I N K
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra / Jeremy Rolls
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _link_h
-#define _link_h 1
-
-/*************************************************
- * Define the Link Status stuff
- ************************************************/
-/* Boot request stuff */
-#define BOOT_REQUEST ((ushort) 0) /* Request for a boot */
-#define BOOT_ABORT ((ushort) 1) /* Abort a boot */
-#define BOOT_SEQUENCE ((ushort) 2) /* Packet with the number of packets
- and load address */
-#define BOOT_COMPLETED ((ushort) 3) /* Boot completed */
-
-
-struct LPB {
- u16 link_number; /* Link Number */
- u16 in_ch; /* Link In Channel */
- u16 out_ch; /* Link Out Channel */
- u8 attached_serial[4]; /* Attached serial number */
- u8 attached_host_serial[4];
- /* Serial number of Host who
- booted the other end */
- u16 descheduled; /* Currently Descheduled */
- u16 state; /* Current state */
- u16 send_poll; /* Send a Poll Packet */
- u16 ltt_p; /* Process Descriptor */
- u16 lrt_p; /* Process Descriptor */
- u16 lrt_status; /* Current lrt status */
- u16 ltt_status; /* Current ltt status */
- u16 timeout; /* Timeout value */
- u16 topology; /* Topology bits */
- u16 mon_ltt;
- u16 mon_lrt;
- u16 WaitNoBoot; /* Secs to hold off booting */
- u16 add_packet_list; /* Add packets to here */
- u16 remove_packet_list; /* Send packets from here */
-
- u16 lrt_fail_chan; /* Lrt's failure channel */
- u16 ltt_fail_chan; /* Ltt's failure channel */
-
- /* RUP structure for HOST to driver communications */
- struct RUP rup;
- struct RUP link_rup; /* RUP for the link (POLL,
- topology etc.) */
- u16 attached_link; /* Number of attached link */
- u16 csum_errors; /* csum errors */
- u16 num_disconnects; /* number of disconnects */
- u16 num_sync_rcvd; /* # sync's received */
- u16 num_sync_rqst; /* # sync requests */
- u16 num_tx; /* Num pkts sent */
- u16 num_rx; /* Num pkts received */
- u16 module_attached; /* Module tpyes of attached */
- u16 led_timeout; /* LED timeout */
- u16 first_port; /* First port to service */
- u16 last_port; /* Last port to service */
-};
-
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/linux_compat.h b/drivers/char/rio/linux_compat.h
deleted file mode 100644
index 34c0d2899ef..00000000000
--- a/drivers/char/rio/linux_compat.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * (C) 2000 R.E.Wolff@BitWizard.nl
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/interrupt.h>
-
-
-#define DEBUG_ALL
-
-struct ttystatics {
- struct termios tm;
-};
-
-extern int rio_debug;
-
-#define RIO_DEBUG_INIT 0x000001
-#define RIO_DEBUG_BOOT 0x000002
-#define RIO_DEBUG_CMD 0x000004
-#define RIO_DEBUG_CTRL 0x000008
-#define RIO_DEBUG_INTR 0x000010
-#define RIO_DEBUG_PARAM 0x000020
-#define RIO_DEBUG_ROUTE 0x000040
-#define RIO_DEBUG_TABLE 0x000080
-#define RIO_DEBUG_TTY 0x000100
-#define RIO_DEBUG_FLOW 0x000200
-#define RIO_DEBUG_MODEMSIGNALS 0x000400
-#define RIO_DEBUG_PROBE 0x000800
-#define RIO_DEBUG_CLEANUP 0x001000
-#define RIO_DEBUG_IFLOW 0x002000
-#define RIO_DEBUG_PFE 0x004000
-#define RIO_DEBUG_REC 0x008000
-#define RIO_DEBUG_SPINLOCK 0x010000
-#define RIO_DEBUG_DELAY 0x020000
-#define RIO_DEBUG_MOD_COUNT 0x040000
-
-
-/* Copied over from riowinif.h . This is ugly. The winif file declares
-also much other stuff which is incompatible with the headers from
-the older driver. The older driver includes "brates.h" which shadows
-the definitions from Linux, and is incompatible... */
-
-/* RxBaud and TxBaud definitions... */
-#define RIO_B0 0x00 /* RTS / DTR signals dropped */
-#define RIO_B50 0x01 /* 50 baud */
-#define RIO_B75 0x02 /* 75 baud */
-#define RIO_B110 0x03 /* 110 baud */
-#define RIO_B134 0x04 /* 134.5 baud */
-#define RIO_B150 0x05 /* 150 baud */
-#define RIO_B200 0x06 /* 200 baud */
-#define RIO_B300 0x07 /* 300 baud */
-#define RIO_B600 0x08 /* 600 baud */
-#define RIO_B1200 0x09 /* 1200 baud */
-#define RIO_B1800 0x0A /* 1800 baud */
-#define RIO_B2400 0x0B /* 2400 baud */
-#define RIO_B4800 0x0C /* 4800 baud */
-#define RIO_B9600 0x0D /* 9600 baud */
-#define RIO_B19200 0x0E /* 19200 baud */
-#define RIO_B38400 0x0F /* 38400 baud */
-#define RIO_B56000 0x10 /* 56000 baud */
-#define RIO_B57600 0x11 /* 57600 baud */
-#define RIO_B64000 0x12 /* 64000 baud */
-#define RIO_B115200 0x13 /* 115200 baud */
-#define RIO_B2000 0x14 /* 2000 baud */
diff --git a/drivers/char/rio/map.h b/drivers/char/rio/map.h
deleted file mode 100644
index 8366978578c..00000000000
--- a/drivers/char/rio/map.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : map.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:11
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)map.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_map_h__
-#define __rio_map_h__
-
-/*
-** mapping structure passed to and from the config.rio program to
-** determine the current topology of the world
-*/
-
-#define MAX_MAP_ENTRY 17
-#define TOTAL_MAP_ENTRIES (MAX_MAP_ENTRY*RIO_SLOTS)
-#define MAX_NAME_LEN 32
-
-struct Map {
- unsigned int HostUniqueNum; /* Supporting hosts unique number */
- unsigned int RtaUniqueNum; /* Unique number */
- /*
- ** The next two IDs must be swapped on big-endian architectures
- ** when using a v2.04 /etc/rio/config with a v3.00 driver (when
- ** upgrading for example).
- */
- unsigned short ID; /* ID used in the subnet */
- unsigned short ID2; /* ID of 2nd block of 8 for 16 port */
- unsigned long Flags; /* Booted, ID Given, Disconnected */
- unsigned long SysPort; /* First tty mapped to this port */
- struct Top Topology[LINKS_PER_UNIT]; /* ID connected to each link */
- char Name[MAX_NAME_LEN]; /* Cute name by which RTA is known */
-};
-
-/*
-** Flag values:
-*/
-#define RTA_BOOTED 0x00000001
-#define RTA_NEWBOOT 0x00000010
-#define MSG_DONE 0x00000020
-#define RTA_INTERCONNECT 0x00000040
-#define RTA16_SECOND_SLOT 0x00000080
-#define BEEN_HERE 0x00000100
-#define SLOT_TENTATIVE 0x40000000
-#define SLOT_IN_USE 0x80000000
-
-/*
-** HostUniqueNum is the unique number from the host card that this RTA
-** is to be connected to.
-** RtaUniqueNum is the unique number of the RTA concerned. It will be ZERO
-** if the slot in the table is unused. If it is the same as the HostUniqueNum
-** then this slot represents a host card.
-** Flags contains current boot/route state info
-** SysPort is a value in the range 0-504, being the number of the first tty
-** on this RTA. Each RTA supports 8 ports. The SysPort value must be modulo 8.
-** SysPort 0-127 correspond to /dev/ttyr001 to /dev/ttyr128, with minor
-** numbers 0-127. SysPort 128-255 correspond to /dev/ttyr129 to /dev/ttyr256,
-** again with minor numbers 0-127, and so on for SysPorts 256-383 and 384-511
-** ID will be in the range 0-16 for a `known' RTA. ID will be 0xFFFF for an
-** unused slot/unknown ID etc.
-** The Topology array contains the ID of the unit connected to each of the
-** four links on this unit. The entry will be 0xFFFF if NOTHING is connected
-** to the link, or will be 0xFF00 if an UNKNOWN unit is connected to the link.
-** The Name field is a null-terminated string, upto 31 characters, containing
-** the 'cute' name that the sysadmin/users know the RTA by. It is permissible
-** for this string to contain any character in the range \040 to \176 inclusive.
-** In particular, ctrl sequences and DEL (0x7F, \177) are not allowed. The
-** special character '%' IS allowable, and needs no special action.
-**
-*/
-
-#endif
diff --git a/drivers/char/rio/param.h b/drivers/char/rio/param.h
deleted file mode 100644
index 7e9b6283e8a..00000000000
--- a/drivers/char/rio/param.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : param.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:12
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)param.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_param_h__
-#define __rio_param_h__
-
-/*
-** the param command block, as used in OPEN and PARAM calls.
-*/
-
-struct phb_param {
- u8 Cmd; /* It is very important that these line up */
- u8 Cor1; /* with what is expected at the other end. */
- u8 Cor2; /* to confirm that you've got it right, */
- u8 Cor4; /* check with cirrus/cirrus.h */
- u8 Cor5;
- u8 TxXon; /* Transmit X-On character */
- u8 TxXoff; /* Transmit X-Off character */
- u8 RxXon; /* Receive X-On character */
- u8 RxXoff; /* Receive X-Off character */
- u8 LNext; /* Literal-next character */
- u8 TxBaud; /* Transmit baudrate */
- u8 RxBaud; /* Receive baudrate */
-};
-
-#endif
diff --git a/drivers/char/rio/parmmap.h b/drivers/char/rio/parmmap.h
deleted file mode 100644
index acc8fa439df..00000000000
--- a/drivers/char/rio/parmmap.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* H O S T M E M O R Y M A P
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra / Jeremy Rolls
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-6/4/1991 jonb Made changes to accommodate Mips R3230 bus
- ***************************************************************************/
-
-#ifndef _parmap_h
-#define _parmap_h
-
-typedef struct PARM_MAP PARM_MAP;
-
-struct PARM_MAP {
- u16 phb_ptr; /* Pointer to the PHB array */
- u16 phb_num_ptr; /* Ptr to Number of PHB's */
- u16 free_list; /* Free List pointer */
- u16 free_list_end; /* Free List End pointer */
- u16 q_free_list_ptr; /* Ptr to Q_BUF variable */
- u16 unit_id_ptr; /* Unit Id */
- u16 link_str_ptr; /* Link Structure Array */
- u16 bootloader_1; /* 1st Stage Boot Loader */
- u16 bootloader_2; /* 2nd Stage Boot Loader */
- u16 port_route_map_ptr; /* Port Route Map */
- u16 route_ptr; /* Unit Route Map */
- u16 map_present; /* Route Map present */
- s16 pkt_num; /* Total number of packets */
- s16 q_num; /* Total number of Q packets */
- u16 buffers_per_port; /* Number of buffers per port */
- u16 heap_size; /* Initial size of heap */
- u16 heap_left; /* Current Heap left */
- u16 error; /* Error code */
- u16 tx_max; /* Max number of tx pkts per phb */
- u16 rx_max; /* Max number of rx pkts per phb */
- u16 rx_limit; /* For high / low watermarks */
- s16 links; /* Links to use */
- s16 timer; /* Interrupts per second */
- u16 rups; /* Pointer to the RUPs */
- u16 max_phb; /* Mostly for debugging */
- u16 living; /* Just increments!! */
- u16 init_done; /* Initialisation over */
- u16 booting_link;
- u16 idle_count; /* Idle time counter */
- u16 busy_count; /* Busy counter */
- u16 idle_control; /* Control Idle Process */
- u16 tx_intr; /* TX interrupt pending */
- u16 rx_intr; /* RX interrupt pending */
- u16 rup_intr; /* RUP interrupt pending */
-};
-
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/pci.h b/drivers/char/rio/pci.h
deleted file mode 100644
index 6032f913595..00000000000
--- a/drivers/char/rio/pci.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : pci.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:12
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)pci.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_pci_h__
-#define __rio_pci_h__
-
-/*
-** PCI stuff
-*/
-
-#define PCITpFastClock 0x80
-#define PCITpSlowClock 0x00
-#define PCITpFastLinks 0x40
-#define PCITpSlowLinks 0x00
-#define PCITpIntEnable 0x04
-#define PCITpIntDisable 0x00
-#define PCITpBusEnable 0x02
-#define PCITpBusDisable 0x00
-#define PCITpBootFromRam 0x01
-#define PCITpBootFromLink 0x00
-
-#define RIO_PCI_VENDOR 0x11CB
-#define RIO_PCI_DEVICE 0x8000
-#define RIO_PCI_BASE_CLASS 0x02
-#define RIO_PCI_SUB_CLASS 0x80
-#define RIO_PCI_PROG_IFACE 0x00
-
-#define RIO_PCI_RID 0x0008
-#define RIO_PCI_BADR0 0x0010
-#define RIO_PCI_INTLN 0x003C
-#define RIO_PCI_INTPIN 0x003D
-
-#define RIO_PCI_MEM_SIZE 65536
-
-#define RIO_PCI_TURBO_TP 0x80
-#define RIO_PCI_FAST_LINKS 0x40
-#define RIO_PCI_INT_ENABLE 0x04
-#define RIO_PCI_TP_BUS_ENABLE 0x02
-#define RIO_PCI_BOOT_FROM_RAM 0x01
-
-#define RIO_PCI_DEFAULT_MODE 0x05
-
-#endif /* __rio_pci_h__ */
diff --git a/drivers/char/rio/phb.h b/drivers/char/rio/phb.h
deleted file mode 100644
index a4c48ae4e36..00000000000
--- a/drivers/char/rio/phb.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* P H B H E A D E R *******
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra, Jeremy Rolls
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _phb_h
-#define _phb_h 1
-
-/*************************************************
- * Handshake asserted. Deasserted by the LTT(s)
- ************************************************/
-#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */
-
-#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */
-
-#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET)
- /* Reset by ltt */
-
-
-/*************************************************
- * Maximum number of PHB's
- ************************************************/
-#define MAX_PHB ((ushort) 128) /* range 0-127 */
-
-/*************************************************
- * Defines for the mode fields
- ************************************************/
-#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */
-#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */
-#define TX_TAB3 0x0004 /* TAB3 mode */
-#define TX_OCRNL 0x0008 /* OCRNL mode */
-#define TX_ONLCR 0x0010 /* ONLCR mode */
-#define TX_SENDSPACES 0x0020 /* Send n spaces command needs
- completing */
-#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */
-#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */
-#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
- port */
-#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL)
-#define TX_DTRFLOW 0x0200 /* DTR tx flow control */
-#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data
- into the FIFO */
-#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */
-#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */
-
-#define RX_SPARE 0x0001 /* SPARE */
-#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */
-#define RX_ICRNL 0x0008 /* ICRNL mode */
-#define RX_INLCR 0x0010 /* INLCR mode */
-#define RX_IGNCR 0x0020 /* IGNCR mode */
-#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */
-#define RX_IXOFF 0x0080 /* IXOFF enabled */
-#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */
-#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */
-#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */
-
-#define PORT_ISOPEN 0x0001 /* Port open? */
-#define PORT_HUPCL 0x0002 /* Hangup on close? */
-#define PORT_MOPENPEND 0x0004 /* Modem open pending */
-#define PORT_ISPARALLEL 0x0008 /* Parallel port */
-#define PORT_BREAK 0x0010 /* Port on break */
-#define PORT_STATUSPEND 0x0020 /* Status packet pending */
-#define PORT_BREAKPEND 0x0040 /* Break packet pending */
-#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */
-#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel
- port */
-#define PORT_FULLMODEM 0x0200 /* Full modem signals */
-#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */
-#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */
-
-#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */
-
-#define PORT_WCLOSE 0x0800 /* Waiting for close */
-#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */
-#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */
-#define DUMPMODE 0x4000 /* Dump RTA mem */
-#define READ_REG 0x8000 /* Read CD1400 register */
-
-
-
-/**************************************************************************
- * PHB Structure
- * A few words.
- *
- * Normally Packets are added to the end of the list and removed from
- * the start. The pointer tx_add points to a SPACE to put a Packet.
- * The pointer tx_remove points to the next Packet to remove
- *************************************************************************/
-
-struct PHB {
- u8 source;
- u8 handshake;
- u8 status;
- u16 timeout; /* Maximum of 1.9 seconds */
- u8 link; /* Send down this link */
- u8 destination;
- u16 tx_start;
- u16 tx_end;
- u16 tx_add;
- u16 tx_remove;
-
- u16 rx_start;
- u16 rx_end;
- u16 rx_add;
- u16 rx_remove;
-
-};
-
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/pkt.h b/drivers/char/rio/pkt.h
deleted file mode 100644
index a9458164f02..00000000000
--- a/drivers/char/rio/pkt.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* P A C K E T H E A D E R F I L E
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra / Jeremy Rolls
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _pkt_h
-#define _pkt_h 1
-
-#define PKT_CMD_BIT ((ushort) 0x080)
-#define PKT_CMD_DATA ((ushort) 0x080)
-
-#define PKT_ACK ((ushort) 0x040)
-
-#define PKT_TGL ((ushort) 0x020)
-
-#define PKT_LEN_MASK ((ushort) 0x07f)
-
-#define DATA_WNDW ((ushort) 0x10)
-#define PKT_TTL_MASK ((ushort) 0x0f)
-
-#define PKT_MAX_DATA_LEN 72
-
-#define PKT_LENGTH sizeof(struct PKT)
-#define SYNC_PKT_LENGTH (PKT_LENGTH + 4)
-
-#define CONTROL_PKT_LEN_MASK PKT_LEN_MASK
-#define CONTROL_PKT_CMD_BIT PKT_CMD_BIT
-#define CONTROL_PKT_ACK (PKT_ACK << 8)
-#define CONTROL_PKT_TGL (PKT_TGL << 8)
-#define CONTROL_PKT_TTL_MASK (PKT_TTL_MASK << 8)
-#define CONTROL_DATA_WNDW (DATA_WNDW << 8)
-
-struct PKT {
- u8 dest_unit; /* Destination Unit Id */
- u8 dest_port; /* Destination POrt */
- u8 src_unit; /* Source Unit Id */
- u8 src_port; /* Source POrt */
- u8 len;
- u8 control;
- u8 data[PKT_MAX_DATA_LEN];
- /* Actual data :-) */
- u16 csum; /* C-SUM */
-};
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/port.h b/drivers/char/rio/port.h
deleted file mode 100644
index 49cf6d15ee5..00000000000
--- a/drivers/char/rio/port.h
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : port.h
-** SID : 1.3
-** Last Modified : 11/6/98 11:34:12
-** Retrieved : 11/6/98 11:34:21
-**
-** ident @(#)port.h 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_port_h__
-#define __rio_port_h__
-
-/*
-** Port data structure
-*/
-struct Port {
- struct gs_port gs;
- int PortNum; /* RIO port no., 0-511 */
- struct Host *HostP;
- void __iomem *Caddr;
- unsigned short HostPort; /* Port number on host card */
- unsigned char RupNum; /* Number of RUP for port */
- unsigned char ID2; /* Second ID of RTA for port */
- unsigned long State; /* FLAGS for open & xopen */
-#define RIO_LOPEN 0x00001 /* Local open */
-#define RIO_MOPEN 0x00002 /* Modem open */
-#define RIO_WOPEN 0x00004 /* Waiting for open */
-#define RIO_CLOSING 0x00008 /* The port is being close */
-#define RIO_XPBUSY 0x00010 /* Transparent printer busy */
-#define RIO_BREAKING 0x00020 /* Break in progress */
-#define RIO_DIRECT 0x00040 /* Doing Direct output */
-#define RIO_EXCLUSIVE 0x00080 /* Stream open for exclusive use */
-#define RIO_NDELAY 0x00100 /* Stream is open FNDELAY */
-#define RIO_CARR_ON 0x00200 /* Stream has carrier present */
-#define RIO_XPWANTR 0x00400 /* Stream wanted by Xprint */
-#define RIO_RBLK 0x00800 /* Stream is read-blocked */
-#define RIO_BUSY 0x01000 /* Stream is BUSY for write */
-#define RIO_TIMEOUT 0x02000 /* Stream timeout in progress */
-#define RIO_TXSTOP 0x04000 /* Stream output is stopped */
-#define RIO_WAITFLUSH 0x08000 /* Stream waiting for flush */
-#define RIO_DYNOROD 0x10000 /* Drain failed */
-#define RIO_DELETED 0x20000 /* RTA has been deleted */
-#define RIO_ISSCANCODE 0x40000 /* This line is in scancode mode */
-#define RIO_USING_EUC 0x100000 /* Using extended Unix chars */
-#define RIO_CAN_COOK 0x200000 /* This line can do cooking */
-#define RIO_TRIAD_MODE 0x400000 /* Enable TRIAD special ops. */
-#define RIO_TRIAD_BLOCK 0x800000 /* Next read will block */
-#define RIO_TRIAD_FUNC 0x1000000 /* Seen a function key coming in */
-#define RIO_THROTTLE_RX 0x2000000 /* RX needs to be throttled. */
-
- unsigned long Config; /* FLAGS for NOREAD.... */
-#define RIO_NOREAD 0x0001 /* Are not allowed to read port */
-#define RIO_NOWRITE 0x0002 /* Are not allowed to write port */
-#define RIO_NOXPRINT 0x0004 /* Are not allowed to xprint port */
-#define RIO_NOMASK 0x0007 /* All not allowed things */
-#define RIO_IXANY 0x0008 /* Port is allowed ixany */
-#define RIO_MODEM 0x0010 /* Stream is a modem device */
-#define RIO_IXON 0x0020 /* Port is allowed ixon */
-#define RIO_WAITDRAIN 0x0040 /* Wait for port to completely drain */
-#define RIO_MAP_50_TO_50 0x0080 /* Map 50 baud to 50 baud */
-#define RIO_MAP_110_TO_110 0x0100 /* Map 110 baud to 110 baud */
-
-/*
-** 15.10.1998 ARG - ESIL 0761 prt fix
-** As LynxOS does not appear to support Hardware Flow Control .....
-** Define our own flow control flags in 'Config'.
-*/
-#define RIO_CTSFLOW 0x0200 /* RIO's own CTSFLOW flag */
-#define RIO_RTSFLOW 0x0400 /* RIO's own RTSFLOW flag */
-
-
- struct PHB __iomem *PhbP; /* pointer to PHB for port */
- u16 __iomem *TxAdd; /* Add packets here */
- u16 __iomem *TxStart; /* Start of add array */
- u16 __iomem *TxEnd; /* End of add array */
- u16 __iomem *RxRemove; /* Remove packets here */
- u16 __iomem *RxStart; /* Start of remove array */
- u16 __iomem *RxEnd; /* End of remove array */
- unsigned int RtaUniqueNum; /* Unique number of RTA */
- unsigned short PortState; /* status of port */
- unsigned short ModemState; /* status of modem lines */
- unsigned long ModemLines; /* Modem bits sent to RTA */
- unsigned char CookMode; /* who expands CR/LF? */
- unsigned char ParamSem; /* Prevent write during param */
- unsigned char Mapped; /* if port mapped onto host */
- unsigned char SecondBlock; /* if port belongs to 2nd block
- of 16 port RTA */
- unsigned char InUse; /* how many pre-emptive cmds */
- unsigned char Lock; /* if params locked */
- unsigned char Store; /* if params stored across closes */
- unsigned char FirstOpen; /* TRUE if first time port opened */
- unsigned char FlushCmdBodge; /* if doing a (non)flush */
- unsigned char MagicFlags; /* require intr processing */
-#define MAGIC_FLUSH 0x01 /* mirror of WflushFlag */
-#define MAGIC_REBOOT 0x02 /* RTA re-booted, re-open ports */
-#define MORE_OUTPUT_EYGOR 0x04 /* riotproc failed to empty clists */
- unsigned char WflushFlag; /* 1 How many WFLUSHs active */
-/*
-** Transparent print stuff
-*/
- struct Xprint {
-#ifndef MAX_XP_CTRL_LEN
-#define MAX_XP_CTRL_LEN 16 /* ALSO IN DAEMON.H */
-#endif
- unsigned int XpCps;
- char XpOn[MAX_XP_CTRL_LEN];
- char XpOff[MAX_XP_CTRL_LEN];
- unsigned short XpLen; /* strlen(XpOn)+strlen(XpOff) */
- unsigned char XpActive;
- unsigned char XpLastTickOk; /* TRUE if we can process */
-#define XP_OPEN 00001
-#define XP_RUNABLE 00002
- struct ttystatics *XttyP;
- } Xprint;
- unsigned char RxDataStart;
- unsigned char Cor2Copy; /* copy of COR2 */
- char *Name; /* points to the Rta's name */
- char *TxRingBuffer;
- unsigned short TxBufferIn; /* New data arrives here */
- unsigned short TxBufferOut; /* Intr removes data here */
- unsigned short OldTxBufferOut; /* Indicates if draining */
- int TimeoutId; /* Timeout ID */
- unsigned int Debug;
- unsigned char WaitUntilBooted; /* True if open should block */
- unsigned int statsGather; /* True if gathering stats */
- unsigned long txchars; /* Chars transmitted */
- unsigned long rxchars; /* Chars received */
- unsigned long opens; /* port open count */
- unsigned long closes; /* port close count */
- unsigned long ioctls; /* ioctl count */
- unsigned char LastRxTgl; /* Last state of rx toggle bit */
- spinlock_t portSem; /* Lock using this sem */
- int MonitorTstate; /* Monitoring ? */
- int timeout_id; /* For calling 100 ms delays */
- int timeout_sem; /* For calling 100 ms delays */
- int firstOpen; /* First time open ? */
- char *p; /* save the global struc here .. */
-};
-
-struct ModuleInfo {
- char *Name;
- unsigned int Flags[4]; /* one per port on a module */
-};
-
-/*
-** This struct is required because trying to grab an entire Port structure
-** runs into problems with differing struct sizes between driver and config.
-*/
-struct PortParams {
- unsigned int Port;
- unsigned long Config;
- unsigned long State;
- struct ttystatics *TtyP;
-};
-
-#endif
diff --git a/drivers/char/rio/protsts.h b/drivers/char/rio/protsts.h
deleted file mode 100644
index 8ab79401d3e..00000000000
--- a/drivers/char/rio/protsts.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* P R O T O C O L S T A T U S S T R U C T U R E *******
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra / Jeremy Rolls
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _protsts_h
-#define _protsts_h 1
-
-/*************************************************
- * ACK bit. Last Packet received OK. Set by
- * rxpkt to indicate that the Packet has been
- * received OK and that the LTT must set the ACK
- * bit in the next outward bound Packet
- * and re-set by LTT's after xmit.
- *
- * Gets shoved into rx_status
- ************************************************/
-#define PHB_RX_LAST_PKT_ACKED ((ushort) 0x080)
-
-/*******************************************************
- * The Rx TOGGLE bit.
- * Stuffed into rx_status by RXPKT
- ******************************************************/
-#define PHB_RX_DATA_WNDW ((ushort) 0x040)
-
-/*******************************************************
- * The Rx TOGGLE bit. Matches the setting in PKT.H
- * Stuffed into rx_status
- ******************************************************/
-#define PHB_RX_TGL ((ushort) 0x2000)
-
-
-/*************************************************
- * This bit is set by the LRT to indicate that
- * an ACK (packet) must be returned.
- *
- * Gets shoved into tx_status
- ************************************************/
-#define PHB_TX_SEND_PKT_ACK ((ushort) 0x08)
-
-/*************************************************
- * Set by LTT to indicate that an ACK is required
- *************************************************/
-#define PHB_TX_ACK_RQRD ((ushort) 0x01)
-
-
-/*******************************************************
- * The Tx TOGGLE bit.
- * Stuffed into tx_status by RXPKT from the PKT WndW
- * field. Looked by the LTT when the NEXT Packet
- * is going to be sent.
- ******************************************************/
-#define PHB_TX_DATA_WNDW ((ushort) 0x04)
-
-
-/*******************************************************
- * The Tx TOGGLE bit. Matches the setting in PKT.H
- * Stuffed into tx_status
- ******************************************************/
-#define PHB_TX_TGL ((ushort) 0x02)
-
-/*******************************************************
- * Request intr bit. Set when the queue has gone quiet
- * and the PHB has requested an interrupt.
- ******************************************************/
-#define PHB_TX_INTR ((ushort) 0x100)
-
-/*******************************************************
- * SET if the PHB cannot send any more data down the
- * Link
- ******************************************************/
-#define PHB_TX_HANDSHAKE ((ushort) 0x010)
-
-
-#define RUP_SEND_WNDW ((ushort) 0x08) ;
-
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/rio.h b/drivers/char/rio/rio.h
deleted file mode 100644
index 1bf36223a4e..00000000000
--- a/drivers/char/rio/rio.h
+++ /dev/null
@@ -1,208 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 1998 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rio.h
-** SID : 1.3
-** Last Modified : 11/6/98 11:34:13
-** Retrieved : 11/6/98 11:34:22
-**
-** ident @(#)rio.h 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_rio_h__
-#define __rio_rio_h__
-
-/*
-** Maximum numbers of things
-*/
-#define RIO_SLOTS 4 /* number of configuration slots */
-#define RIO_HOSTS 4 /* number of hosts that can be found */
-#define PORTS_PER_HOST 128 /* number of ports per host */
-#define LINKS_PER_UNIT 4 /* number of links from a host */
-#define RIO_PORTS (PORTS_PER_HOST * RIO_HOSTS) /* max. no. of ports */
-#define RTAS_PER_HOST (MAX_RUP) /* number of RTAs per host */
-#define PORTS_PER_RTA (PORTS_PER_HOST/RTAS_PER_HOST) /* ports on a rta */
-#define PORTS_PER_MODULE 4 /* number of ports on a plug-in module */
- /* number of modules on an RTA */
-#define MODULES_PER_RTA (PORTS_PER_RTA/PORTS_PER_MODULE)
-#define MAX_PRODUCT 16 /* numbr of different product codes */
-#define MAX_MODULE_TYPES 16 /* number of different types of module */
-
-#define RIO_CONTROL_DEV 128 /* minor number of host/control device */
-#define RIO_INVALID_MAJOR 0 /* test first host card's major no for validity */
-
-/*
-** number of RTAs that can be bound to a master
-*/
-#define MAX_RTA_BINDINGS (MAX_RUP * RIO_HOSTS)
-
-/*
-** Unit types
-*/
-#define PC_RTA16 0x90000000
-#define PC_RTA8 0xe0000000
-#define TYPE_HOST 0
-#define TYPE_RTA8 1
-#define TYPE_RTA16 2
-
-/*
-** Flag values returned by functions
-*/
-
-#define RIO_FAIL -1
-
-/*
-** SysPort value for something that hasn't any ports
-*/
-#define NO_PORT 0xFFFFFFFF
-
-/*
-** Unit ID Of all hosts
-*/
-#define HOST_ID 0
-
-/*
-** Break bytes into nybles
-*/
-#define LONYBLE(X) ((X) & 0xF)
-#define HINYBLE(X) (((X)>>4) & 0xF)
-
-/*
-** Flag values passed into some functions
-*/
-#define DONT_SLEEP 0
-#define OK_TO_SLEEP 1
-
-#define DONT_PRINT 1
-#define DO_PRINT 0
-
-#define PRINT_TO_LOG_CONS 0
-#define PRINT_TO_CONS 1
-#define PRINT_TO_LOG 2
-
-/*
-** Timeout has trouble with times of less than 3 ticks...
-*/
-#define MIN_TIMEOUT 3
-
-/*
-** Generally useful constants
-*/
-
-#define HUNDRED_MS ((HZ/10)?(HZ/10):1)
-#define ONE_MEG 0x100000
-#define SIXTY_FOUR_K 0x10000
-
-#define RIO_AT_MEM_SIZE SIXTY_FOUR_K
-#define RIO_EISA_MEM_SIZE SIXTY_FOUR_K
-#define RIO_MCA_MEM_SIZE SIXTY_FOUR_K
-
-#define COOK_WELL 0
-#define COOK_MEDIUM 1
-#define COOK_RAW 2
-
-/*
-** Pointer manipulation stuff
-** RIO_PTR takes hostp->Caddr and the offset into the DP RAM area
-** and produces a UNIX caddr_t (pointer) to the object
-** RIO_OBJ takes hostp->Caddr and a UNIX pointer to an object and
-** returns the offset into the DP RAM area.
-*/
-#define RIO_PTR(C,O) (((unsigned char __iomem *)(C))+(0xFFFF&(O)))
-#define RIO_OFF(C,O) ((unsigned char __iomem *)(O)-(unsigned char __iomem *)(C))
-
-/*
-** How to convert from various different device number formats:
-** DEV is a dev number, as passed to open, close etc - NOT a minor
-** number!
-**/
-
-#define RIO_MODEM_MASK 0x1FF
-#define RIO_MODEM_BIT 0x200
-#define RIO_UNMODEM(DEV) (MINOR(DEV) & RIO_MODEM_MASK)
-#define RIO_ISMODEM(DEV) (MINOR(DEV) & RIO_MODEM_BIT)
-#define RIO_PORT(DEV,FIRST_MAJ) ( (MAJOR(DEV) - FIRST_MAJ) * PORTS_PER_HOST) \
- + MINOR(DEV)
-#define CSUM(pkt_ptr) (((u16 *)(pkt_ptr))[0] + ((u16 *)(pkt_ptr))[1] + \
- ((u16 *)(pkt_ptr))[2] + ((u16 *)(pkt_ptr))[3] + \
- ((u16 *)(pkt_ptr))[4] + ((u16 *)(pkt_ptr))[5] + \
- ((u16 *)(pkt_ptr))[6] + ((u16 *)(pkt_ptr))[7] + \
- ((u16 *)(pkt_ptr))[8] + ((u16 *)(pkt_ptr))[9] )
-
-#define RIO_LINK_ENABLE 0x80FF /* FF is a hack, mainly for Mips, to */
- /* prevent a really stupid race condition. */
-
-#define NOT_INITIALISED 0
-#define INITIALISED 1
-
-#define NOT_POLLING 0
-#define POLLING 1
-
-#define NOT_CHANGED 0
-#define CHANGED 1
-
-#define NOT_INUSE 0
-
-#define DISCONNECT 0
-#define CONNECT 1
-
-/* ------ Control Codes ------ */
-
-#define CONTROL '^'
-#define IFOAD ( CONTROL + 1 )
-#define IDENTIFY ( CONTROL + 2 )
-#define ZOMBIE ( CONTROL + 3 )
-#define UFOAD ( CONTROL + 4 )
-#define IWAIT ( CONTROL + 5 )
-
-#define IFOAD_MAGIC 0xF0AD /* of course */
-#define ZOMBIE_MAGIC (~0xDEAD) /* not dead -> zombie */
-#define UFOAD_MAGIC 0xD1E /* kill-your-neighbour */
-#define IWAIT_MAGIC 0xB1DE /* Bide your time */
-
-/* ------ Error Codes ------ */
-
-#define E_NO_ERROR ((ushort) 0)
-
-/* ------ Free Lists ------ */
-
-struct rio_free_list {
- u16 next;
- u16 prev;
-};
-
-/* NULL for card side linked lists */
-#define TPNULL ((ushort)(0x8000))
-/* We can add another packet to a transmit queue if the packet pointer pointed
- * to by the TxAdd pointer has PKT_IN_USE clear in its address. */
-#define PKT_IN_USE 0x1
-
-/* ------ Topology ------ */
-
-struct Top {
- u8 Unit;
- u8 Link;
-};
-
-#endif /* __rio_h__ */
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
deleted file mode 100644
index 5e33293d24e..00000000000
--- a/drivers/char/rio/rio_linux.c
+++ /dev/null
@@ -1,1204 +0,0 @@
-
-/* rio_linux.c -- Linux driver for the Specialix RIO series cards.
- *
- *
- * (C) 1999 R.E.Wolff@BitWizard.nl
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact support@specialix.co.uk if you require
- * support. But please read the documentation (rio.txt) first.
- *
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- * */
-
-#include <linux/module.h>
-#include <linux/kdev_t.h>
-#include <asm/io.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/miscdevice.h>
-#include <linux/init.h>
-
-#include <linux/generic_serial.h>
-#include <asm/uaccess.h>
-
-#include "linux_compat.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "param.h"
-#include "protsts.h"
-#include "rioboard.h"
-
-
-#include "rio_linux.h"
-
-/* I don't think that this driver can handle more than 512 ports on
-one machine. Specialix specifies max 4 boards in one machine. I don't
-know why. If you want to try anyway you'll have to increase the number
-of boards in rio.h. You'll have to allocate more majors if you need
-more than 512 ports.... */
-
-#ifndef RIO_NORMAL_MAJOR0
-/* This allows overriding on the compiler commandline, or in a "major.h"
- include or something like that */
-#define RIO_NORMAL_MAJOR0 154
-#define RIO_NORMAL_MAJOR1 156
-#endif
-
-#ifndef PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8
-#define PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8 0x2000
-#endif
-
-#ifndef RIO_WINDOW_LEN
-#define RIO_WINDOW_LEN 0x10000
-#endif
-
-
-/* Configurable options:
- (Don't be too sure that it'll work if you toggle them) */
-
-/* Am I paranoid or not ? ;-) */
-#undef RIO_PARANOIA_CHECK
-
-
-/* 20 -> 2000 per second. The card should rate-limit interrupts at 1000
- Hz, but it is user configurable. I don't recommend going above 1000
- Hz. The interrupt ratelimit might trigger if the interrupt is
- shared with a very active other device.
- undef this if you want to disable the check....
-*/
-#define IRQ_RATE_LIMIT 200
-
-
-/* These constants are derived from SCO Source */
-static DEFINE_MUTEX(rio_fw_mutex);
-static struct Conf
- RIOConf = {
- /* locator */ "RIO Config here",
- /* startuptime */ HZ * 2,
- /* how long to wait for card to run */
- /* slowcook */ 0,
- /* TRUE -> always use line disc. */
- /* intrpolltime */ 1,
- /* The frequency of OUR polls */
- /* breakinterval */ 25,
- /* x10 mS XXX: units seem to be 1ms not 10! -- REW */
- /* timer */ 10,
- /* mS */
- /* RtaLoadBase */ 0x7000,
- /* HostLoadBase */ 0x7C00,
- /* XpHz */ 5,
- /* number of Xprint hits per second */
- /* XpCps */ 120,
- /* Xprint characters per second */
- /* XpOn */ "\033d#",
- /* start Xprint for a wyse 60 */
- /* XpOff */ "\024",
- /* end Xprint for a wyse 60 */
- /* MaxXpCps */ 2000,
- /* highest Xprint speed */
- /* MinXpCps */ 10,
- /* slowest Xprint speed */
- /* SpinCmds */ 1,
- /* non-zero for mega fast boots */
- /* First Addr */ 0x0A0000,
- /* First address to look at */
- /* Last Addr */ 0xFF0000,
- /* Last address looked at */
- /* BufferSize */ 1024,
- /* Bytes per port of buffering */
- /* LowWater */ 256,
- /* how much data left before wakeup */
- /* LineLength */ 80,
- /* how wide is the console? */
- /* CmdTimeout */ HZ,
- /* how long a close command may take */
-};
-
-
-
-
-/* Function prototypes */
-
-static void rio_disable_tx_interrupts(void *ptr);
-static void rio_enable_tx_interrupts(void *ptr);
-static void rio_disable_rx_interrupts(void *ptr);
-static void rio_enable_rx_interrupts(void *ptr);
-static int rio_carrier_raised(struct tty_port *port);
-static void rio_shutdown_port(void *ptr);
-static int rio_set_real_termios(void *ptr);
-static void rio_hungup(void *ptr);
-static void rio_close(void *ptr);
-static int rio_chars_in_buffer(void *ptr);
-static long rio_fw_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-static int rio_init_drivers(void);
-
-static void my_hd(void *addr, int len);
-
-static struct tty_driver *rio_driver, *rio_driver2;
-
-/* The name "p" is a bit non-descript. But that's what the rio-lynxos
-sources use all over the place. */
-struct rio_info *p;
-
-int rio_debug;
-
-
-/* You can have the driver poll your card.
- - Set rio_poll to 1 to poll every timer tick (10ms on Intel).
- This is used when the card cannot use an interrupt for some reason.
-*/
-static int rio_poll = 1;
-
-
-/* These are the only open spaces in my computer. Yours may have more
- or less.... */
-static int rio_probe_addrs[] = { 0xc0000, 0xd0000, 0xe0000 };
-
-#define NR_RIO_ADDRS ARRAY_SIZE(rio_probe_addrs)
-
-
-/* Set the mask to all-ones. This alas, only supports 32 interrupts.
- Some architectures may need more. -- Changed to LONG to
- support up to 64 bits on 64bit architectures. -- REW 20/06/99 */
-static long rio_irqmask = -1;
-
-MODULE_AUTHOR("Rogier Wolff <R.E.Wolff@bitwizard.nl>, Patrick van de Lageweg <patrick@bitwizard.nl>");
-MODULE_DESCRIPTION("RIO driver");
-MODULE_LICENSE("GPL");
-module_param(rio_poll, int, 0);
-module_param(rio_debug, int, 0644);
-module_param(rio_irqmask, long, 0);
-
-static struct real_driver rio_real_driver = {
- rio_disable_tx_interrupts,
- rio_enable_tx_interrupts,
- rio_disable_rx_interrupts,
- rio_enable_rx_interrupts,
- rio_shutdown_port,
- rio_set_real_termios,
- rio_chars_in_buffer,
- rio_close,
- rio_hungup,
- NULL
-};
-
-/*
- * Firmware loader driver specific routines
- *
- */
-
-static const struct file_operations rio_fw_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = rio_fw_ioctl,
- .llseek = noop_llseek,
-};
-
-static struct miscdevice rio_fw_device = {
- RIOCTL_MISC_MINOR, "rioctl", &rio_fw_fops
-};
-
-
-
-
-
-#ifdef RIO_PARANOIA_CHECK
-
-/* This doesn't work. Who's paranoid around here? Not me! */
-
-static inline int rio_paranoia_check(struct rio_port const *port, char *name, const char *routine)
-{
-
- static const char *badmagic = KERN_ERR "rio: Warning: bad rio port magic number for device %s in %s\n";
- static const char *badinfo = KERN_ERR "rio: Warning: null rio port for device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != RIO_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-
- return 0;
-}
-#else
-#define rio_paranoia_check(a,b,c) 0
-#endif
-
-
-#ifdef DEBUG
-static void my_hd(void *ad, int len)
-{
- int i, j, ch;
- unsigned char *addr = ad;
-
- for (i = 0; i < len; i += 16) {
- rio_dprintk(RIO_DEBUG_PARAM, "%08lx ", (unsigned long) addr + i);
- for (j = 0; j < 16; j++) {
- rio_dprintk(RIO_DEBUG_PARAM, "%02x %s", addr[j + i], (j == 7) ? " " : "");
- }
- for (j = 0; j < 16; j++) {
- ch = addr[j + i];
- rio_dprintk(RIO_DEBUG_PARAM, "%c", (ch < 0x20) ? '.' : ((ch > 0x7f) ? '.' : ch));
- }
- rio_dprintk(RIO_DEBUG_PARAM, "\n");
- }
-}
-#else
-#define my_hd(ad,len) do{/* nothing*/ } while (0)
-#endif
-
-
-/* Delay a number of jiffies, allowing a signal to interrupt */
-int RIODelay(struct Port *PortP, int njiffies)
-{
- func_enter();
-
- rio_dprintk(RIO_DEBUG_DELAY, "delaying %d jiffies\n", njiffies);
- msleep_interruptible(jiffies_to_msecs(njiffies));
- func_exit();
-
- if (signal_pending(current))
- return RIO_FAIL;
- else
- return !RIO_FAIL;
-}
-
-
-/* Delay a number of jiffies, disallowing a signal to interrupt */
-int RIODelay_ni(struct Port *PortP, int njiffies)
-{
- func_enter();
-
- rio_dprintk(RIO_DEBUG_DELAY, "delaying %d jiffies (ni)\n", njiffies);
- msleep(jiffies_to_msecs(njiffies));
- func_exit();
- return !RIO_FAIL;
-}
-
-void rio_copy_to_card(void *from, void __iomem *to, int len)
-{
- rio_copy_toio(to, from, len);
-}
-
-int rio_minor(struct tty_struct *tty)
-{
- return tty->index + ((tty->driver == rio_driver) ? 0 : 256);
-}
-
-static int rio_set_real_termios(void *ptr)
-{
- return RIOParam((struct Port *) ptr, RIOC_CONFIG, 1, 1);
-}
-
-
-static void rio_reset_interrupt(struct Host *HostP)
-{
- func_enter();
-
- switch (HostP->Type) {
- case RIO_AT:
- case RIO_MCA:
- case RIO_PCI:
- writeb(0xFF, &HostP->ResetInt);
- }
-
- func_exit();
-}
-
-
-static irqreturn_t rio_interrupt(int irq, void *ptr)
-{
- struct Host *HostP;
- func_enter();
-
- HostP = ptr; /* &p->RIOHosts[(long)ptr]; */
- rio_dprintk(RIO_DEBUG_IFLOW, "rio: enter rio_interrupt (%d/%d)\n", irq, HostP->Ivec);
-
- /* AAargh! The order in which to do these things is essential and
- not trivial.
-
- - hardware twiddling goes before "recursive". Otherwise when we
- poll the card, and a recursive interrupt happens, we won't
- ack the card, so it might keep on interrupting us. (especially
- level sensitive interrupt systems like PCI).
-
- - Rate limit goes before hardware twiddling. Otherwise we won't
- catch a card that has gone bonkers.
-
- - The "initialized" test goes after the hardware twiddling. Otherwise
- the card will stick us in the interrupt routine again.
-
- - The initialized test goes before recursive.
- */
-
- rio_dprintk(RIO_DEBUG_IFLOW, "rio: We've have noticed the interrupt\n");
- if (HostP->Ivec == irq) {
- /* Tell the card we've noticed the interrupt. */
- rio_reset_interrupt(HostP);
- }
-
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING)
- return IRQ_HANDLED;
-
- if (test_and_set_bit(RIO_BOARD_INTR_LOCK, &HostP->locks)) {
- printk(KERN_ERR "Recursive interrupt! (host %p/irq%d)\n", ptr, HostP->Ivec);
- return IRQ_HANDLED;
- }
-
- RIOServiceHost(p, HostP);
-
- rio_dprintk(RIO_DEBUG_IFLOW, "riointr() doing host %p type %d\n", ptr, HostP->Type);
-
- clear_bit(RIO_BOARD_INTR_LOCK, &HostP->locks);
- rio_dprintk(RIO_DEBUG_IFLOW, "rio: exit rio_interrupt (%d/%d)\n", irq, HostP->Ivec);
- func_exit();
- return IRQ_HANDLED;
-}
-
-
-static void rio_pollfunc(unsigned long data)
-{
- func_enter();
-
- rio_interrupt(0, &p->RIOHosts[data]);
- mod_timer(&p->RIOHosts[data].timer, jiffies + rio_poll);
-
- func_exit();
-}
-
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the generic_serial driver *
- * ********************************************************************** */
-
-/* Ehhm. I don't know how to fiddle with interrupts on the Specialix
- cards. .... Hmm. Ok I figured it out. You don't. -- REW */
-
-static void rio_disable_tx_interrupts(void *ptr)
-{
- func_enter();
-
- /* port->gs.port.flags &= ~GS_TX_INTEN; */
-
- func_exit();
-}
-
-
-static void rio_enable_tx_interrupts(void *ptr)
-{
- struct Port *PortP = ptr;
- /* int hn; */
-
- func_enter();
-
- /* hn = PortP->HostP - p->RIOHosts;
-
- rio_dprintk (RIO_DEBUG_TTY, "Pushing host %d\n", hn);
- rio_interrupt (-1,(void *) hn, NULL); */
-
- RIOTxEnable((char *) PortP);
-
- /*
- * In general we cannot count on "tx empty" interrupts, although
- * the interrupt routine seems to be able to tell the difference.
- */
- PortP->gs.port.flags &= ~GS_TX_INTEN;
-
- func_exit();
-}
-
-
-static void rio_disable_rx_interrupts(void *ptr)
-{
- func_enter();
- func_exit();
-}
-
-static void rio_enable_rx_interrupts(void *ptr)
-{
- /* struct rio_port *port = ptr; */
- func_enter();
- func_exit();
-}
-
-
-/* Jeez. Isn't this simple? */
-static int rio_carrier_raised(struct tty_port *port)
-{
- struct Port *PortP = container_of(port, struct Port, gs.port);
- int rv;
-
- func_enter();
- rv = (PortP->ModemState & RIOC_MSVR1_CD) != 0;
-
- rio_dprintk(RIO_DEBUG_INIT, "Getting CD status: %d\n", rv);
-
- func_exit();
- return rv;
-}
-
-
-/* Jeez. Isn't this simple? Actually, we can sync with the actual port
- by just pushing stuff into the queue going to the port... */
-static int rio_chars_in_buffer(void *ptr)
-{
- func_enter();
-
- func_exit();
- return 0;
-}
-
-
-/* Nothing special here... */
-static void rio_shutdown_port(void *ptr)
-{
- struct Port *PortP;
-
- func_enter();
-
- PortP = (struct Port *) ptr;
- PortP->gs.port.tty = NULL;
- func_exit();
-}
-
-
-/* I haven't the foggiest why the decrement use count has to happen
- here. The whole linux serial drivers stuff needs to be redesigned.
- My guess is that this is a hack to minimize the impact of a bug
- elsewhere. Thinking about it some more. (try it sometime) Try
- running minicom on a serial port that is driven by a modularized
- driver. Have the modem hangup. Then remove the driver module. Then
- exit minicom. I expect an "oops". -- REW */
-static void rio_hungup(void *ptr)
-{
- struct Port *PortP;
-
- func_enter();
-
- PortP = (struct Port *) ptr;
- PortP->gs.port.tty = NULL;
-
- func_exit();
-}
-
-
-/* The standard serial_close would become shorter if you'd wrap it like
- this.
- rs_close (...){save_flags;cli;real_close();dec_use_count;restore_flags;}
- */
-static void rio_close(void *ptr)
-{
- struct Port *PortP;
-
- func_enter();
-
- PortP = (struct Port *) ptr;
-
- riotclose(ptr);
-
- if (PortP->gs.port.count) {
- printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count);
- PortP->gs.port.count = 0;
- }
-
- PortP->gs.port.tty = NULL;
- func_exit();
-}
-
-
-
-static long rio_fw_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- int rc = 0;
- func_enter();
-
- /* The "dev" argument isn't used. */
- mutex_lock(&rio_fw_mutex);
- rc = riocontrol(p, 0, cmd, arg, capable(CAP_SYS_ADMIN));
- mutex_unlock(&rio_fw_mutex);
-
- func_exit();
- return rc;
-}
-
-extern int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg);
-
-static int rio_ioctl(struct tty_struct *tty, struct file *filp, unsigned int cmd, unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
- int rc;
- struct Port *PortP;
- int ival;
-
- func_enter();
-
- PortP = (struct Port *) tty->driver_data;
-
- rc = 0;
- switch (cmd) {
- case TIOCSSOFTCAR:
- if ((rc = get_user(ival, (unsigned __user *) argp)) == 0) {
- tty->termios->c_cflag = (tty->termios->c_cflag & ~CLOCAL) | (ival ? CLOCAL : 0);
- }
- break;
- case TIOCGSERIAL:
- rc = -EFAULT;
- if (access_ok(VERIFY_WRITE, argp, sizeof(struct serial_struct)))
- rc = gs_getserial(&PortP->gs, argp);
- break;
- case TCSBRK:
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_TTY, "BREAK on deleted RTA\n");
- rc = -EIO;
- } else {
- if (RIOShortCommand(p, PortP, RIOC_SBREAK, 2, 250) ==
- RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_INTR, "SBREAK RIOShortCommand failed\n");
- rc = -EIO;
- }
- }
- break;
- case TCSBRKP:
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_TTY, "BREAK on deleted RTA\n");
- rc = -EIO;
- } else {
- int l;
- l = arg ? arg * 100 : 250;
- if (l > 255)
- l = 255;
- if (RIOShortCommand(p, PortP, RIOC_SBREAK, 2,
- arg ? arg * 100 : 250) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_INTR, "SBREAK RIOShortCommand failed\n");
- rc = -EIO;
- }
- }
- break;
- case TIOCSSERIAL:
- rc = -EFAULT;
- if (access_ok(VERIFY_READ, argp, sizeof(struct serial_struct)))
- rc = gs_setserial(&PortP->gs, argp);
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- func_exit();
- return rc;
-}
-
-
-/* The throttle/unthrottle scheme for the Specialix card is different
- * from other drivers and deserves some explanation.
- * The Specialix hardware takes care of XON/XOFF
- * and CTS/RTS flow control itself. This means that all we have to
- * do when signalled by the upper tty layer to throttle/unthrottle is
- * to make a note of it here. When we come to read characters from the
- * rx buffers on the card (rio_receive_chars()) we look to see if the
- * upper layer can accept more (as noted here in rio_rx_throt[]).
- * If it can't we simply don't remove chars from the cards buffer.
- * When the tty layer can accept chars, we again note that here and when
- * rio_receive_chars() is called it will remove them from the cards buffer.
- * The card will notice that a ports buffer has drained below some low
- * water mark and will unflow control the line itself, using whatever
- * flow control scheme is in use for that port. -- Simon Allen
- */
-
-static void rio_throttle(struct tty_struct *tty)
-{
- struct Port *port = (struct Port *) tty->driver_data;
-
- func_enter();
- /* If the port is using any type of input flow
- * control then throttle the port.
- */
-
- if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
- port->State |= RIO_THROTTLE_RX;
- }
-
- func_exit();
-}
-
-
-static void rio_unthrottle(struct tty_struct *tty)
-{
- struct Port *port = (struct Port *) tty->driver_data;
-
- func_enter();
- /* Always unthrottle even if flow control is not enabled on
- * this port in case we disabled flow control while the port
- * was throttled
- */
-
- port->State &= ~RIO_THROTTLE_RX;
-
- func_exit();
- return;
-}
-
-
-
-
-
-/* ********************************************************************** *
- * Here are the initialization routines. *
- * ********************************************************************** */
-
-
-static struct vpd_prom *get_VPD_PROM(struct Host *hp)
-{
- static struct vpd_prom vpdp;
- char *p;
- int i;
-
- func_enter();
- rio_dprintk(RIO_DEBUG_PROBE, "Going to verify vpd prom at %p.\n", hp->Caddr + RIO_VPD_ROM);
-
- p = (char *) &vpdp;
- for (i = 0; i < sizeof(struct vpd_prom); i++)
- *p++ = readb(hp->Caddr + RIO_VPD_ROM + i * 2);
- /* read_rio_byte (hp, RIO_VPD_ROM + i*2); */
-
- /* Terminate the identifier string.
- *** requires one extra byte in struct vpd_prom *** */
- *p++ = 0;
-
- if (rio_debug & RIO_DEBUG_PROBE)
- my_hd((char *) &vpdp, 0x20);
-
- func_exit();
-
- return &vpdp;
-}
-
-static const struct tty_operations rio_ops = {
- .open = riotopen,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = rio_ioctl,
- .throttle = rio_throttle,
- .unthrottle = rio_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
-};
-
-static int rio_init_drivers(void)
-{
- int error = -ENOMEM;
-
- rio_driver = alloc_tty_driver(256);
- if (!rio_driver)
- goto out;
- rio_driver2 = alloc_tty_driver(256);
- if (!rio_driver2)
- goto out1;
-
- func_enter();
-
- rio_driver->owner = THIS_MODULE;
- rio_driver->driver_name = "specialix_rio";
- rio_driver->name = "ttySR";
- rio_driver->major = RIO_NORMAL_MAJOR0;
- rio_driver->type = TTY_DRIVER_TYPE_SERIAL;
- rio_driver->subtype = SERIAL_TYPE_NORMAL;
- rio_driver->init_termios = tty_std_termios;
- rio_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- rio_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(rio_driver, &rio_ops);
-
- rio_driver2->owner = THIS_MODULE;
- rio_driver2->driver_name = "specialix_rio";
- rio_driver2->name = "ttySR";
- rio_driver2->major = RIO_NORMAL_MAJOR1;
- rio_driver2->type = TTY_DRIVER_TYPE_SERIAL;
- rio_driver2->subtype = SERIAL_TYPE_NORMAL;
- rio_driver2->init_termios = tty_std_termios;
- rio_driver2->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- rio_driver2->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(rio_driver2, &rio_ops);
-
- rio_dprintk(RIO_DEBUG_INIT, "set_termios = %p\n", gs_set_termios);
-
- if ((error = tty_register_driver(rio_driver)))
- goto out2;
- if ((error = tty_register_driver(rio_driver2)))
- goto out3;
- func_exit();
- return 0;
- out3:
- tty_unregister_driver(rio_driver);
- out2:
- put_tty_driver(rio_driver2);
- out1:
- put_tty_driver(rio_driver);
- out:
- printk(KERN_ERR "rio: Couldn't register a rio driver, error = %d\n", error);
- return 1;
-}
-
-static const struct tty_port_operations rio_port_ops = {
- .carrier_raised = rio_carrier_raised,
-};
-
-static int rio_init_datastructures(void)
-{
- int i;
- struct Port *port;
- func_enter();
-
- /* Many drivers statically allocate the maximum number of ports
- There is no reason not to allocate them dynamically. Is there? -- REW */
- /* However, the RIO driver allows users to configure their first
- RTA as the ports numbered 504-511. We therefore need to allocate
- the whole range. :-( -- REW */
-
-#define RI_SZ sizeof(struct rio_info)
-#define HOST_SZ sizeof(struct Host)
-#define PORT_SZ sizeof(struct Port *)
-#define TMIO_SZ sizeof(struct termios *)
- rio_dprintk(RIO_DEBUG_INIT, "getting : %Zd %Zd %Zd %Zd %Zd bytes\n", RI_SZ, RIO_HOSTS * HOST_SZ, RIO_PORTS * PORT_SZ, RIO_PORTS * TMIO_SZ, RIO_PORTS * TMIO_SZ);
-
- if (!(p = kzalloc(RI_SZ, GFP_KERNEL)))
- goto free0;
- if (!(p->RIOHosts = kzalloc(RIO_HOSTS * HOST_SZ, GFP_KERNEL)))
- goto free1;
- if (!(p->RIOPortp = kzalloc(RIO_PORTS * PORT_SZ, GFP_KERNEL)))
- goto free2;
- p->RIOConf = RIOConf;
- rio_dprintk(RIO_DEBUG_INIT, "Got : %p %p %p\n", p, p->RIOHosts, p->RIOPortp);
-
-#if 1
- for (i = 0; i < RIO_PORTS; i++) {
- port = p->RIOPortp[i] = kzalloc(sizeof(struct Port), GFP_KERNEL);
- if (!port) {
- goto free6;
- }
- rio_dprintk(RIO_DEBUG_INIT, "initing port %d (%d)\n", i, port->Mapped);
- tty_port_init(&port->gs.port);
- port->gs.port.ops = &rio_port_ops;
- port->PortNum = i;
- port->gs.magic = RIO_MAGIC;
- port->gs.close_delay = HZ / 2;
- port->gs.closing_wait = 30 * HZ;
- port->gs.rd = &rio_real_driver;
- spin_lock_init(&port->portSem);
- }
-#else
- /* We could postpone initializing them to when they are configured. */
-#endif
-
-
-
- if (rio_debug & RIO_DEBUG_INIT) {
- my_hd(&rio_real_driver, sizeof(rio_real_driver));
- }
-
-
- func_exit();
- return 0;
-
- free6:for (i--; i >= 0; i--)
- kfree(p->RIOPortp[i]);
-/*free5:
- free4:
- free3:*/ kfree(p->RIOPortp);
- free2:kfree(p->RIOHosts);
- free1:
- rio_dprintk(RIO_DEBUG_INIT, "Not enough memory! %p %p %p\n", p, p->RIOHosts, p->RIOPortp);
- kfree(p);
- free0:
- return -ENOMEM;
-}
-
-static void __exit rio_release_drivers(void)
-{
- func_enter();
- tty_unregister_driver(rio_driver2);
- tty_unregister_driver(rio_driver);
- put_tty_driver(rio_driver2);
- put_tty_driver(rio_driver);
- func_exit();
-}
-
-
-#ifdef CONFIG_PCI
- /* This was written for SX, but applies to RIO too...
- (including bugs....)
-
- There is another bit besides Bit 17. Turning that bit off
- (on boards shipped with the fix in the eeprom) results in a
- hang on the next access to the card.
- */
-
- /********************************************************
- * Setting bit 17 in the CNTRL register of the PLX 9050 *
- * chip forces a retry on writes while a read is pending.*
- * This is to prevent the card locking up on Intel Xeon *
- * multiprocessor systems with the NX chipset. -- NV *
- ********************************************************/
-
-/* Newer cards are produced with this bit set from the configuration
- EEprom. As the bit is read/write for the CPU, we can fix it here,
- if we detect that it isn't set correctly. -- REW */
-
-static void fix_rio_pci(struct pci_dev *pdev)
-{
- unsigned long hwbase;
- unsigned char __iomem *rebase;
- unsigned int t;
-
-#define CNTRL_REG_OFFSET 0x50
-#define CNTRL_REG_GOODVALUE 0x18260000
-
- hwbase = pci_resource_start(pdev, 0);
- rebase = ioremap(hwbase, 0x80);
- t = readl(rebase + CNTRL_REG_OFFSET);
- if (t != CNTRL_REG_GOODVALUE) {
- printk(KERN_DEBUG "rio: performing cntrl reg fix: %08x -> %08x\n", t, CNTRL_REG_GOODVALUE);
- writel(CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET);
- }
- iounmap(rebase);
-}
-#endif
-
-
-static int __init rio_init(void)
-{
- int found = 0;
- int i;
- struct Host *hp;
- int retval;
- struct vpd_prom *vpdp;
- int okboard;
-
-#ifdef CONFIG_PCI
- struct pci_dev *pdev = NULL;
- unsigned short tshort;
-#endif
-
- func_enter();
- rio_dprintk(RIO_DEBUG_INIT, "Initing rio module... (rio_debug=%d)\n", rio_debug);
-
- if (abs((long) (&rio_debug) - rio_debug) < 0x10000) {
- printk(KERN_WARNING "rio: rio_debug is an address, instead of a value. " "Assuming -1. Was %x/%p.\n", rio_debug, &rio_debug);
- rio_debug = -1;
- }
-
- if (misc_register(&rio_fw_device) < 0) {
- printk(KERN_ERR "RIO: Unable to register firmware loader driver.\n");
- return -EIO;
- }
-
- retval = rio_init_datastructures();
- if (retval < 0) {
- misc_deregister(&rio_fw_device);
- return retval;
- }
-#ifdef CONFIG_PCI
- /* First look for the JET devices: */
- while ((pdev = pci_get_device(PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8, pdev))) {
- u32 tint;
-
- if (pci_enable_device(pdev))
- continue;
-
- /* Specialix has a whole bunch of cards with
- 0x2000 as the device ID. They say its because
- the standard requires it. Stupid standard. */
- /* It seems that reading a word doesn't work reliably on 2.0.
- Also, reading a non-aligned dword doesn't work. So we read the
- whole dword at 0x2c and extract the word at 0x2e (SUBSYSTEM_ID)
- ourselves */
- pci_read_config_dword(pdev, 0x2c, &tint);
- tshort = (tint >> 16) & 0xffff;
- rio_dprintk(RIO_DEBUG_PROBE, "Got a specialix card: %x.\n", tint);
- if (tshort != 0x0100) {
- rio_dprintk(RIO_DEBUG_PROBE, "But it's not a RIO card (%d)...\n", tshort);
- continue;
- }
- rio_dprintk(RIO_DEBUG_PROBE, "cp1\n");
-
- hp = &p->RIOHosts[p->RIONumHosts];
- hp->PaddrP = pci_resource_start(pdev, 2);
- hp->Ivec = pdev->irq;
- if (((1 << hp->Ivec) & rio_irqmask) == 0)
- hp->Ivec = 0;
- hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP, RIO_WINDOW_LEN);
- hp->CardP = (struct DpRam __iomem *) hp->Caddr;
- hp->Type = RIO_PCI;
- hp->Copy = rio_copy_to_card;
- hp->Mode = RIO_PCI_BOOT_FROM_RAM;
- spin_lock_init(&hp->HostLock);
- rio_reset_interrupt(hp);
- rio_start_card_running(hp);
-
- rio_dprintk(RIO_DEBUG_PROBE, "Going to test it (%p/%p).\n", (void *) p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr);
- if (RIOBoardTest(p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr, RIO_PCI, 0) == 0) {
- rio_dprintk(RIO_DEBUG_INIT, "Done RIOBoardTest\n");
- writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
- p->RIOHosts[p->RIONumHosts].UniqueNum =
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[0]) & 0xFF) << 0) |
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[1]) & 0xFF) << 8) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[2]) & 0xFF) << 16) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[3]) & 0xFF) << 24);
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, uniqid = %x.\n", p->RIOHosts[p->RIONumHosts].UniqueNum);
-
- fix_rio_pci(pdev);
-
- p->RIOHosts[p->RIONumHosts].pdev = pdev;
- pci_dev_get(pdev);
-
- p->RIOLastPCISearch = 0;
- p->RIONumHosts++;
- found++;
- } else {
- iounmap(p->RIOHosts[p->RIONumHosts].Caddr);
- p->RIOHosts[p->RIONumHosts].Caddr = NULL;
- }
- }
-
- /* Then look for the older PCI card.... : */
-
- /* These older PCI cards have problems (only byte-mode access is
- supported), which makes them a bit awkward to support.
- They also have problems sharing interrupts. Be careful.
- (The driver now refuses to share interrupts for these
- cards. This should be sufficient).
- */
-
- /* Then look for the older RIO/PCI devices: */
- while ((pdev = pci_get_device(PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_RIO, pdev))) {
- if (pci_enable_device(pdev))
- continue;
-
-#ifdef CONFIG_RIO_OLDPCI
- hp = &p->RIOHosts[p->RIONumHosts];
- hp->PaddrP = pci_resource_start(pdev, 0);
- hp->Ivec = pdev->irq;
- if (((1 << hp->Ivec) & rio_irqmask) == 0)
- hp->Ivec = 0;
- hp->Ivec |= 0x8000; /* Mark as non-sharable */
- hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP, RIO_WINDOW_LEN);
- hp->CardP = (struct DpRam __iomem *) hp->Caddr;
- hp->Type = RIO_PCI;
- hp->Copy = rio_copy_to_card;
- hp->Mode = RIO_PCI_BOOT_FROM_RAM;
- spin_lock_init(&hp->HostLock);
-
- rio_dprintk(RIO_DEBUG_PROBE, "Ivec: %x\n", hp->Ivec);
- rio_dprintk(RIO_DEBUG_PROBE, "Mode: %x\n", hp->Mode);
-
- rio_reset_interrupt(hp);
- rio_start_card_running(hp);
- rio_dprintk(RIO_DEBUG_PROBE, "Going to test it (%p/%p).\n", (void *) p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr);
- if (RIOBoardTest(p->RIOHosts[p->RIONumHosts].PaddrP, p->RIOHosts[p->RIONumHosts].Caddr, RIO_PCI, 0) == 0) {
- writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
- p->RIOHosts[p->RIONumHosts].UniqueNum =
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[0]) & 0xFF) << 0) |
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[1]) & 0xFF) << 8) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[2]) & 0xFF) << 16) | ((readb(&p->RIOHosts[p->RIONumHosts].Unique[3]) & 0xFF) << 24);
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, uniqid = %x.\n", p->RIOHosts[p->RIONumHosts].UniqueNum);
-
- p->RIOHosts[p->RIONumHosts].pdev = pdev;
- pci_dev_get(pdev);
-
- p->RIOLastPCISearch = 0;
- p->RIONumHosts++;
- found++;
- } else {
- iounmap(p->RIOHosts[p->RIONumHosts].Caddr);
- p->RIOHosts[p->RIONumHosts].Caddr = NULL;
- }
-#else
- printk(KERN_ERR "Found an older RIO PCI card, but the driver is not " "compiled to support it.\n");
-#endif
- }
-#endif /* PCI */
-
- /* Now probe for ISA cards... */
- for (i = 0; i < NR_RIO_ADDRS; i++) {
- hp = &p->RIOHosts[p->RIONumHosts];
- hp->PaddrP = rio_probe_addrs[i];
- /* There was something about the IRQs of these cards. 'Forget what.--REW */
- hp->Ivec = 0;
- hp->Caddr = ioremap(p->RIOHosts[p->RIONumHosts].PaddrP, RIO_WINDOW_LEN);
- hp->CardP = (struct DpRam __iomem *) hp->Caddr;
- hp->Type = RIO_AT;
- hp->Copy = rio_copy_to_card; /* AT card PCI???? - PVDL
- * -- YES! this is now a normal copy. Only the
- * old PCI card uses the special PCI copy.
- * Moreover, the ISA card will work with the
- * special PCI copy anyway. -- REW */
- hp->Mode = 0;
- spin_lock_init(&hp->HostLock);
-
- vpdp = get_VPD_PROM(hp);
- rio_dprintk(RIO_DEBUG_PROBE, "Got VPD ROM\n");
- okboard = 0;
- if ((strncmp(vpdp->identifier, RIO_ISA_IDENT, 16) == 0) || (strncmp(vpdp->identifier, RIO_ISA2_IDENT, 16) == 0) || (strncmp(vpdp->identifier, RIO_ISA3_IDENT, 16) == 0)) {
- /* Board is present... */
- if (RIOBoardTest(hp->PaddrP, hp->Caddr, RIO_AT, 0) == 0) {
- /* ... and feeling fine!!!! */
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, uniqid = %x.\n", p->RIOHosts[p->RIONumHosts].UniqueNum);
- if (RIOAssignAT(p, hp->PaddrP, hp->Caddr, 0)) {
- rio_dprintk(RIO_DEBUG_PROBE, "Hmm Tested ok, host%d uniqid = %x.\n", p->RIONumHosts, p->RIOHosts[p->RIONumHosts - 1].UniqueNum);
- okboard++;
- found++;
- }
- }
-
- if (!okboard) {
- iounmap(hp->Caddr);
- hp->Caddr = NULL;
- }
- }
- }
-
-
- for (i = 0; i < p->RIONumHosts; i++) {
- hp = &p->RIOHosts[i];
- if (hp->Ivec) {
- int mode = IRQF_SHARED;
- if (hp->Ivec & 0x8000) {
- mode = 0;
- hp->Ivec &= 0x7fff;
- }
- rio_dprintk(RIO_DEBUG_INIT, "Requesting interrupt hp: %p rio_interrupt: %d Mode: %x\n", hp, hp->Ivec, hp->Mode);
- retval = request_irq(hp->Ivec, rio_interrupt, mode, "rio", hp);
- rio_dprintk(RIO_DEBUG_INIT, "Return value from request_irq: %d\n", retval);
- if (retval) {
- printk(KERN_ERR "rio: Cannot allocate irq %d.\n", hp->Ivec);
- hp->Ivec = 0;
- }
- rio_dprintk(RIO_DEBUG_INIT, "Got irq %d.\n", hp->Ivec);
- if (hp->Ivec != 0) {
- rio_dprintk(RIO_DEBUG_INIT, "Enabling interrupts on rio card.\n");
- hp->Mode |= RIO_PCI_INT_ENABLE;
- } else
- hp->Mode &= ~RIO_PCI_INT_ENABLE;
- rio_dprintk(RIO_DEBUG_INIT, "New Mode: %x\n", hp->Mode);
- rio_start_card_running(hp);
- }
- /* Init the timer "always" to make sure that it can safely be
- deleted when we unload... */
-
- setup_timer(&hp->timer, rio_pollfunc, i);
- if (!hp->Ivec) {
- rio_dprintk(RIO_DEBUG_INIT, "Starting polling at %dj intervals.\n", rio_poll);
- mod_timer(&hp->timer, jiffies + rio_poll);
- }
- }
-
- if (found) {
- rio_dprintk(RIO_DEBUG_INIT, "rio: total of %d boards detected.\n", found);
- rio_init_drivers();
- } else {
- /* deregister the misc device we created earlier */
- misc_deregister(&rio_fw_device);
- }
-
- func_exit();
- return found ? 0 : -EIO;
-}
-
-
-static void __exit rio_exit(void)
-{
- int i;
- struct Host *hp;
-
- func_enter();
-
- for (i = 0, hp = p->RIOHosts; i < p->RIONumHosts; i++, hp++) {
- RIOHostReset(hp->Type, hp->CardP, hp->Slot);
- if (hp->Ivec) {
- free_irq(hp->Ivec, hp);
- rio_dprintk(RIO_DEBUG_INIT, "freed irq %d.\n", hp->Ivec);
- }
- /* It is safe/allowed to del_timer a non-active timer */
- del_timer_sync(&hp->timer);
- if (hp->Caddr)
- iounmap(hp->Caddr);
- if (hp->Type == RIO_PCI)
- pci_dev_put(hp->pdev);
- }
-
- if (misc_deregister(&rio_fw_device) < 0) {
- printk(KERN_INFO "rio: couldn't deregister control-device\n");
- }
-
-
- rio_dprintk(RIO_DEBUG_CLEANUP, "Cleaning up drivers\n");
-
- rio_release_drivers();
-
- /* Release dynamically allocated memory */
- kfree(p->RIOPortp);
- kfree(p->RIOHosts);
- kfree(p);
-
- func_exit();
-}
-
-module_init(rio_init);
-module_exit(rio_exit);
diff --git a/drivers/char/rio/rio_linux.h b/drivers/char/rio/rio_linux.h
deleted file mode 100644
index 7f26cd7c815..00000000000
--- a/drivers/char/rio/rio_linux.h
+++ /dev/null
@@ -1,197 +0,0 @@
-
-/*
- * rio_linux.h
- *
- * Copyright (C) 1998,1999,2000 R.E.Wolff@BitWizard.nl
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * RIO serial driver.
- *
- * Version 1.0 -- July, 1999.
- *
- */
-
-#define RIO_NBOARDS 4
-#define RIO_PORTSPERBOARD 128
-#define RIO_NPORTS (RIO_NBOARDS * RIO_PORTSPERBOARD)
-
-#define MODEM_SUPPORT
-
-#ifdef __KERNEL__
-
-#define RIO_MAGIC 0x12345678
-
-
-struct vpd_prom {
- unsigned short id;
- char hwrev;
- char hwass;
- int uniqid;
- char myear;
- char mweek;
- char hw_feature[5];
- char oem_id;
- char identifier[16];
-};
-
-
-#define RIO_DEBUG_ALL 0xffffffff
-
-#define O_OTHER(tty) \
- ((O_OLCUC(tty)) ||\
- (O_ONLCR(tty)) ||\
- (O_OCRNL(tty)) ||\
- (O_ONOCR(tty)) ||\
- (O_ONLRET(tty)) ||\
- (O_OFILL(tty)) ||\
- (O_OFDEL(tty)) ||\
- (O_NLDLY(tty)) ||\
- (O_CRDLY(tty)) ||\
- (O_TABDLY(tty)) ||\
- (O_BSDLY(tty)) ||\
- (O_VTDLY(tty)) ||\
- (O_FFDLY(tty)))
-
-/* Same for input. */
-#define I_OTHER(tty) \
- ((I_INLCR(tty)) ||\
- (I_IGNCR(tty)) ||\
- (I_ICRNL(tty)) ||\
- (I_IUCLC(tty)) ||\
- (L_ISIG(tty)))
-
-
-#endif /* __KERNEL__ */
-
-
-#define RIO_BOARD_INTR_LOCK 1
-
-
-#ifndef RIOCTL_MISC_MINOR
-/* Allow others to gather this into "major.h" or something like that */
-#define RIOCTL_MISC_MINOR 169
-#endif
-
-
-/* Allow us to debug "in the field" without requiring clients to
- recompile.... */
-#if 1
-#define rio_spin_lock_irqsave(sem, flags) do { \
- rio_dprintk (RIO_DEBUG_SPINLOCK, "spinlockirqsave: %p %s:%d\n", \
- sem, __FILE__, __LINE__);\
- spin_lock_irqsave(sem, flags);\
- } while (0)
-
-#define rio_spin_unlock_irqrestore(sem, flags) do { \
- rio_dprintk (RIO_DEBUG_SPINLOCK, "spinunlockirqrestore: %p %s:%d\n",\
- sem, __FILE__, __LINE__);\
- spin_unlock_irqrestore(sem, flags);\
- } while (0)
-
-#define rio_spin_lock(sem) do { \
- rio_dprintk (RIO_DEBUG_SPINLOCK, "spinlock: %p %s:%d\n",\
- sem, __FILE__, __LINE__);\
- spin_lock(sem);\
- } while (0)
-
-#define rio_spin_unlock(sem) do { \
- rio_dprintk (RIO_DEBUG_SPINLOCK, "spinunlock: %p %s:%d\n",\
- sem, __FILE__, __LINE__);\
- spin_unlock(sem);\
- } while (0)
-#else
-#define rio_spin_lock_irqsave(sem, flags) \
- spin_lock_irqsave(sem, flags)
-
-#define rio_spin_unlock_irqrestore(sem, flags) \
- spin_unlock_irqrestore(sem, flags)
-
-#define rio_spin_lock(sem) \
- spin_lock(sem)
-
-#define rio_spin_unlock(sem) \
- spin_unlock(sem)
-
-#endif
-
-
-
-#ifdef CONFIG_RIO_OLDPCI
-static inline void __iomem *rio_memcpy_toio(void __iomem *dummy, void __iomem *dest, void *source, int n)
-{
- char __iomem *dst = dest;
- char *src = source;
-
- while (n--) {
- writeb(*src++, dst++);
- (void) readb(dummy);
- }
-
- return dest;
-}
-
-static inline void __iomem *rio_copy_toio(void __iomem *dest, void *source, int n)
-{
- char __iomem *dst = dest;
- char *src = source;
-
- while (n--)
- writeb(*src++, dst++);
-
- return dest;
-}
-
-
-static inline void *rio_memcpy_fromio(void *dest, void __iomem *source, int n)
-{
- char *dst = dest;
- char __iomem *src = source;
-
- while (n--)
- *dst++ = readb(src++);
-
- return dest;
-}
-
-#else
-#define rio_memcpy_toio(dummy,dest,source,n) memcpy_toio(dest, source, n)
-#define rio_copy_toio memcpy_toio
-#define rio_memcpy_fromio memcpy_fromio
-#endif
-
-#define DEBUG 1
-
-
-/*
- This driver can spew a whole lot of debugging output at you. If you
- need maximum performance, you should disable the DEBUG define. To
- aid in debugging in the field, I'm leaving the compile-time debug
- features enabled, and disable them "runtime". That allows me to
- instruct people with problems to enable debugging without requiring
- them to recompile...
-*/
-
-#ifdef DEBUG
-#define rio_dprintk(f, str...) do { if (rio_debug & f) printk (str);} while (0)
-#define func_enter() rio_dprintk (RIO_DEBUG_FLOW, "rio: enter %s\n", __func__)
-#define func_exit() rio_dprintk (RIO_DEBUG_FLOW, "rio: exit %s\n", __func__)
-#define func_enter2() rio_dprintk (RIO_DEBUG_FLOW, "rio: enter %s (port %d)\n",__func__, port->line)
-#else
-#define rio_dprintk(f, str...) /* nothing */
-#define func_enter()
-#define func_exit()
-#define func_enter2()
-#endif
diff --git a/drivers/char/rio/rioboard.h b/drivers/char/rio/rioboard.h
deleted file mode 100644
index 252230043c8..00000000000
--- a/drivers/char/rio/rioboard.h
+++ /dev/null
@@ -1,275 +0,0 @@
-/************************************************************************/
-/* */
-/* Title : RIO Host Card Hardware Definitions */
-/* */
-/* Author : N.P.Vassallo */
-/* */
-/* Creation : 26th April 1999 */
-/* */
-/* Version : 1.0.0 */
-/* */
-/* Copyright : (c) Specialix International Ltd. 1999 *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- * */
-/* Description : Prototypes, structures and definitions */
-/* describing the RIO board hardware */
-/* */
-/************************************************************************/
-
-#ifndef _rioboard_h /* If RIOBOARD.H not already defined */
-#define _rioboard_h 1
-
-/*****************************************************************************
-*********************** ***********************
-*********************** Hardware Control Registers ***********************
-*********************** ***********************
-*****************************************************************************/
-
-/* Hardware Registers... */
-
-#define RIO_REG_BASE 0x7C00 /* Base of control registers */
-
-#define RIO_CONFIG RIO_REG_BASE + 0x0000 /* WRITE: Configuration Register */
-#define RIO_INTSET RIO_REG_BASE + 0x0080 /* WRITE: Interrupt Set */
-#define RIO_RESET RIO_REG_BASE + 0x0100 /* WRITE: Host Reset */
-#define RIO_INTRESET RIO_REG_BASE + 0x0180 /* WRITE: Interrupt Reset */
-
-#define RIO_VPD_ROM RIO_REG_BASE + 0x0000 /* READ: Vital Product Data ROM */
-#define RIO_INTSTAT RIO_REG_BASE + 0x0080 /* READ: Interrupt Status (Jet boards only) */
-#define RIO_RESETSTAT RIO_REG_BASE + 0x0100 /* READ: Reset Status (Jet boards only) */
-
-/* RIO_VPD_ROM definitions... */
-#define VPD_SLX_ID1 0x00 /* READ: Specialix Identifier #1 */
-#define VPD_SLX_ID2 0x01 /* READ: Specialix Identifier #2 */
-#define VPD_HW_REV 0x02 /* READ: Hardware Revision */
-#define VPD_HW_ASSEM 0x03 /* READ: Hardware Assembly Level */
-#define VPD_UNIQUEID4 0x04 /* READ: Unique Identifier #4 */
-#define VPD_UNIQUEID3 0x05 /* READ: Unique Identifier #3 */
-#define VPD_UNIQUEID2 0x06 /* READ: Unique Identifier #2 */
-#define VPD_UNIQUEID1 0x07 /* READ: Unique Identifier #1 */
-#define VPD_MANU_YEAR 0x08 /* READ: Year Of Manufacture (0 = 1970) */
-#define VPD_MANU_WEEK 0x09 /* READ: Week Of Manufacture (0 = week 1 Jan) */
-#define VPD_HWFEATURE1 0x0A /* READ: Hardware Feature Byte 1 */
-#define VPD_HWFEATURE2 0x0B /* READ: Hardware Feature Byte 2 */
-#define VPD_HWFEATURE3 0x0C /* READ: Hardware Feature Byte 3 */
-#define VPD_HWFEATURE4 0x0D /* READ: Hardware Feature Byte 4 */
-#define VPD_HWFEATURE5 0x0E /* READ: Hardware Feature Byte 5 */
-#define VPD_OEMID 0x0F /* READ: OEM Identifier */
-#define VPD_IDENT 0x10 /* READ: Identifier string (16 bytes) */
-#define VPD_IDENT_LEN 0x10
-
-/* VPD ROM Definitions... */
-#define SLX_ID1 0x4D
-#define SLX_ID2 0x98
-
-#define PRODUCT_ID(a) ((a>>4)&0xF) /* Use to obtain Product ID from VPD_UNIQUEID1 */
-
-#define ID_SX_ISA 0x2
-#define ID_RIO_EISA 0x3
-#define ID_SX_PCI 0x5
-#define ID_SX_EISA 0x7
-#define ID_RIO_RTA16 0x9
-#define ID_RIO_ISA 0xA
-#define ID_RIO_MCA 0xB
-#define ID_RIO_SBUS 0xC
-#define ID_RIO_PCI 0xD
-#define ID_RIO_RTA8 0xE
-
-/* Transputer bootstrap definitions... */
-
-#define BOOTLOADADDR (0x8000 - 6)
-#define BOOTINDICATE (0x8000 - 2)
-
-/* Firmware load position... */
-
-#define FIRMWARELOADADDR 0x7C00 /* Firmware is loaded _before_ this address */
-
-/*****************************************************************************
-***************************** *****************************
-***************************** RIO (Rev1) ISA *****************************
-***************************** *****************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_ISA_IDENT "JBJGPGGHINSMJPJR"
-
-#define RIO_ISA_CFG_BOOTRAM 0x01 /* Boot from RAM, else Link */
-#define RIO_ISA_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_ISA_CFG_IRQMASK 0x30 /* Interrupt mask */
-#define RIO_ISA_CFG_IRQ12 0x10 /* Interrupt Level 12 */
-#define RIO_ISA_CFG_IRQ11 0x20 /* Interrupt Level 11 */
-#define RIO_ISA_CFG_IRQ9 0x30 /* Interrupt Level 9 */
-#define RIO_ISA_CFG_LINK20 0x40 /* 20Mbps link, else 10Mbps */
-#define RIO_ISA_CFG_WAITSTATE0 0x80 /* 0 waitstates, else 1 */
-
-/*****************************************************************************
-***************************** *****************************
-***************************** RIO (Rev2) ISA *****************************
-***************************** *****************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_ISA2_IDENT "JBJGPGGHINSMJPJR"
-
-#define RIO_ISA2_CFG_BOOTRAM 0x01 /* Boot from RAM, else Link */
-#define RIO_ISA2_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_ISA2_CFG_INTENABLE 0x04 /* Interrupt enable, else disable */
-#define RIO_ISA2_CFG_16BIT 0x08 /* 16bit mode, else 8bit */
-#define RIO_ISA2_CFG_IRQMASK 0x30 /* Interrupt mask */
-#define RIO_ISA2_CFG_IRQ15 0x00 /* Interrupt Level 15 */
-#define RIO_ISA2_CFG_IRQ12 0x10 /* Interrupt Level 12 */
-#define RIO_ISA2_CFG_IRQ11 0x20 /* Interrupt Level 11 */
-#define RIO_ISA2_CFG_IRQ9 0x30 /* Interrupt Level 9 */
-#define RIO_ISA2_CFG_LINK20 0x40 /* 20Mbps link, else 10Mbps */
-#define RIO_ISA2_CFG_WAITSTATE0 0x80 /* 0 waitstates, else 1 */
-
-/*****************************************************************************
-***************************** ******************************
-***************************** RIO (Jet) ISA ******************************
-***************************** ******************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_ISA3_IDENT "JET HOST BY KEV#"
-
-#define RIO_ISA3_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_ISA3_CFG_INTENABLE 0x04 /* Interrupt enable, else disable */
-#define RIO_ISA32_CFG_IRQMASK 0xF30 /* Interrupt mask */
-#define RIO_ISA3_CFG_IRQ15 0xF0 /* Interrupt Level 15 */
-#define RIO_ISA3_CFG_IRQ12 0xC0 /* Interrupt Level 12 */
-#define RIO_ISA3_CFG_IRQ11 0xB0 /* Interrupt Level 11 */
-#define RIO_ISA3_CFG_IRQ10 0xA0 /* Interrupt Level 10 */
-#define RIO_ISA3_CFG_IRQ9 0x90 /* Interrupt Level 9 */
-
-/*****************************************************************************
-********************************* ********************************
-********************************* RIO MCA ********************************
-********************************* ********************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_MCA_IDENT "JBJGPGGHINSMJPJR"
-
-#define RIO_MCA_CFG_BOOTRAM 0x01 /* Boot from RAM, else Link */
-#define RIO_MCA_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_MCA_CFG_LINK20 0x40 /* 20Mbps link, else 10Mbps */
-
-/*****************************************************************************
-******************************** ********************************
-******************************** RIO EISA ********************************
-******************************** ********************************
-*****************************************************************************/
-
-/* EISA Configuration Space Definitions... */
-#define EISA_PRODUCT_ID1 0xC80
-#define EISA_PRODUCT_ID2 0xC81
-#define EISA_PRODUCT_NUMBER 0xC82
-#define EISA_REVISION_NUMBER 0xC83
-#define EISA_CARD_ENABLE 0xC84
-#define EISA_VPD_UNIQUEID4 0xC88 /* READ: Unique Identifier #4 */
-#define EISA_VPD_UNIQUEID3 0xC8A /* READ: Unique Identifier #3 */
-#define EISA_VPD_UNIQUEID2 0xC90 /* READ: Unique Identifier #2 */
-#define EISA_VPD_UNIQUEID1 0xC92 /* READ: Unique Identifier #1 */
-#define EISA_VPD_MANU_YEAR 0xC98 /* READ: Year Of Manufacture (0 = 1970) */
-#define EISA_VPD_MANU_WEEK 0xC9A /* READ: Week Of Manufacture (0 = week 1 Jan) */
-#define EISA_MEM_ADDR_23_16 0xC00
-#define EISA_MEM_ADDR_31_24 0xC01
-#define EISA_RIO_CONFIG 0xC02 /* WRITE: Configuration Register */
-#define EISA_RIO_INTSET 0xC03 /* WRITE: Interrupt Set */
-#define EISA_RIO_INTRESET 0xC03 /* READ: Interrupt Reset */
-
-/* Control Register Definitions... */
-#define RIO_EISA_CFG_BOOTRAM 0x01 /* Boot from RAM, else Link */
-#define RIO_EISA_CFG_LINK20 0x02 /* 20Mbps link, else 10Mbps */
-#define RIO_EISA_CFG_BUSENABLE 0x04 /* Enable processor bus */
-#define RIO_EISA_CFG_PROCRUN 0x08 /* Processor running, else reset */
-#define RIO_EISA_CFG_IRQMASK 0xF0 /* Interrupt mask */
-#define RIO_EISA_CFG_IRQ15 0xF0 /* Interrupt Level 15 */
-#define RIO_EISA_CFG_IRQ14 0xE0 /* Interrupt Level 14 */
-#define RIO_EISA_CFG_IRQ12 0xC0 /* Interrupt Level 12 */
-#define RIO_EISA_CFG_IRQ11 0xB0 /* Interrupt Level 11 */
-#define RIO_EISA_CFG_IRQ10 0xA0 /* Interrupt Level 10 */
-#define RIO_EISA_CFG_IRQ9 0x90 /* Interrupt Level 9 */
-#define RIO_EISA_CFG_IRQ7 0x70 /* Interrupt Level 7 */
-#define RIO_EISA_CFG_IRQ6 0x60 /* Interrupt Level 6 */
-#define RIO_EISA_CFG_IRQ5 0x50 /* Interrupt Level 5 */
-#define RIO_EISA_CFG_IRQ4 0x40 /* Interrupt Level 4 */
-#define RIO_EISA_CFG_IRQ3 0x30 /* Interrupt Level 3 */
-
-/*****************************************************************************
-******************************** ********************************
-******************************** RIO SBus ********************************
-******************************** ********************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_SBUS_IDENT "JBPGK#\0\0\0\0\0\0\0\0\0\0"
-
-#define RIO_SBUS_CFG_BOOTRAM 0x01 /* Boot from RAM, else Link */
-#define RIO_SBUS_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_SBUS_CFG_INTENABLE 0x04 /* Interrupt enable, else disable */
-#define RIO_SBUS_CFG_IRQMASK 0x38 /* Interrupt mask */
-#define RIO_SBUS_CFG_IRQNONE 0x00 /* No Interrupt */
-#define RIO_SBUS_CFG_IRQ7 0x38 /* Interrupt Level 7 */
-#define RIO_SBUS_CFG_IRQ6 0x30 /* Interrupt Level 6 */
-#define RIO_SBUS_CFG_IRQ5 0x28 /* Interrupt Level 5 */
-#define RIO_SBUS_CFG_IRQ4 0x20 /* Interrupt Level 4 */
-#define RIO_SBUS_CFG_IRQ3 0x18 /* Interrupt Level 3 */
-#define RIO_SBUS_CFG_IRQ2 0x10 /* Interrupt Level 2 */
-#define RIO_SBUS_CFG_IRQ1 0x08 /* Interrupt Level 1 */
-#define RIO_SBUS_CFG_LINK20 0x40 /* 20Mbps link, else 10Mbps */
-#define RIO_SBUS_CFG_PROC25 0x80 /* 25Mhz processor clock, else 20Mhz */
-
-/*****************************************************************************
-********************************* ********************************
-********************************* RIO PCI ********************************
-********************************* ********************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_PCI_IDENT "ECDDPGJGJHJRGSK#"
-
-#define RIO_PCI_CFG_BOOTRAM 0x01 /* Boot from RAM, else Link */
-#define RIO_PCI_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_PCI_CFG_INTENABLE 0x04 /* Interrupt enable, else disable */
-#define RIO_PCI_CFG_LINK20 0x40 /* 20Mbps link, else 10Mbps */
-#define RIO_PCI_CFG_PROC25 0x80 /* 25Mhz processor clock, else 20Mhz */
-
-/* PCI Definitions... */
-#define SPX_VENDOR_ID 0x11CB /* Assigned by the PCI SIG */
-#define SPX_DEVICE_ID 0x8000 /* RIO bridge boards */
-#define SPX_PLXDEVICE_ID 0x2000 /* PLX bridge boards */
-#define SPX_SUB_VENDOR_ID SPX_VENDOR_ID /* Same as vendor id */
-#define RIO_SUB_SYS_ID 0x0800 /* RIO PCI board */
-
-/*****************************************************************************
-***************************** ******************************
-***************************** RIO (Jet) PCI ******************************
-***************************** ******************************
-*****************************************************************************/
-
-/* Control Register Definitions... */
-#define RIO_PCI2_IDENT "JET HOST BY KEV#"
-
-#define RIO_PCI2_CFG_BUSENABLE 0x02 /* Enable processor bus */
-#define RIO_PCI2_CFG_INTENABLE 0x04 /* Interrupt enable, else disable */
-
-/* PCI Definitions... */
-#define RIO2_SUB_SYS_ID 0x0100 /* RIO (Jet) PCI board */
-
-#endif /*_rioboard_h */
-
-/* End of RIOBOARD.H */
diff --git a/drivers/char/rio/rioboot.c b/drivers/char/rio/rioboot.c
deleted file mode 100644
index d956dd31600..00000000000
--- a/drivers/char/rio/rioboot.c
+++ /dev/null
@@ -1,1113 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioboot.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:36
-** Retrieved : 11/6/98 10:33:48
-**
-** ident @(#)rioboot.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/termios.h>
-#include <linux/serial.h>
-#include <linux/vmalloc.h>
-#include <linux/generic_serial.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-
-static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP);
-
-static const unsigned char RIOAtVec2Ctrl[] = {
- /* 0 */ INTERRUPT_DISABLE,
- /* 1 */ INTERRUPT_DISABLE,
- /* 2 */ INTERRUPT_DISABLE,
- /* 3 */ INTERRUPT_DISABLE,
- /* 4 */ INTERRUPT_DISABLE,
- /* 5 */ INTERRUPT_DISABLE,
- /* 6 */ INTERRUPT_DISABLE,
- /* 7 */ INTERRUPT_DISABLE,
- /* 8 */ INTERRUPT_DISABLE,
- /* 9 */ IRQ_9 | INTERRUPT_ENABLE,
- /* 10 */ INTERRUPT_DISABLE,
- /* 11 */ IRQ_11 | INTERRUPT_ENABLE,
- /* 12 */ IRQ_12 | INTERRUPT_ENABLE,
- /* 13 */ INTERRUPT_DISABLE,
- /* 14 */ INTERRUPT_DISABLE,
- /* 15 */ IRQ_15 | INTERRUPT_ENABLE
-};
-
-/**
- * RIOBootCodeRTA - Load RTA boot code
- * @p: RIO to load
- * @rbp: Download descriptor
- *
- * Called when the user process initiates booting of the card firmware.
- * Lads the firmware
- */
-
-int RIOBootCodeRTA(struct rio_info *p, struct DownLoad * rbp)
-{
- int offset;
-
- func_enter();
-
- rio_dprintk(RIO_DEBUG_BOOT, "Data at user address %p\n", rbp->DataP);
-
- /*
- ** Check that we have set asside enough memory for this
- */
- if (rbp->Count > SIXTY_FOUR_K) {
- rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code Too Large!\n");
- p->RIOError.Error = HOST_FILE_TOO_LARGE;
- func_exit();
- return -ENOMEM;
- }
-
- if (p->RIOBooting) {
- rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot Code : BUSY BUSY BUSY!\n");
- p->RIOError.Error = BOOT_IN_PROGRESS;
- func_exit();
- return -EBUSY;
- }
-
- /*
- ** The data we load in must end on a (RTA_BOOT_DATA_SIZE) byte boundary,
- ** so calculate how far we have to move the data up the buffer
- ** to achieve this.
- */
- offset = (RTA_BOOT_DATA_SIZE - (rbp->Count % RTA_BOOT_DATA_SIZE)) % RTA_BOOT_DATA_SIZE;
-
- /*
- ** Be clean, and clear the 'unused' portion of the boot buffer,
- ** because it will (eventually) be part of the Rta run time environment
- ** and so should be zeroed.
- */
- memset(p->RIOBootPackets, 0, offset);
-
- /*
- ** Copy the data from user space into the array
- */
-
- if (copy_from_user(((u8 *)p->RIOBootPackets) + offset, rbp->DataP, rbp->Count)) {
- rio_dprintk(RIO_DEBUG_BOOT, "Bad data copy from user space\n");
- p->RIOError.Error = COPYIN_FAILED;
- func_exit();
- return -EFAULT;
- }
-
- /*
- ** Make sure that our copy of the size includes that offset we discussed
- ** earlier.
- */
- p->RIONumBootPkts = (rbp->Count + offset) / RTA_BOOT_DATA_SIZE;
- p->RIOBootCount = rbp->Count;
-
- func_exit();
- return 0;
-}
-
-/**
- * rio_start_card_running - host card start
- * @HostP: The RIO to kick off
- *
- * Start a RIO processor unit running. Encapsulates the knowledge
- * of the card type.
- */
-
-void rio_start_card_running(struct Host *HostP)
-{
- switch (HostP->Type) {
- case RIO_AT:
- rio_dprintk(RIO_DEBUG_BOOT, "Start ISA card running\n");
- writeb(BOOT_FROM_RAM | EXTERNAL_BUS_ON | HostP->Mode | RIOAtVec2Ctrl[HostP->Ivec & 0xF], &HostP->Control);
- break;
- case RIO_PCI:
- /*
- ** PCI is much the same as MCA. Everything is once again memory
- ** mapped, so we are writing to memory registers instead of io
- ** ports.
- */
- rio_dprintk(RIO_DEBUG_BOOT, "Start PCI card running\n");
- writeb(PCITpBootFromRam | PCITpBusEnable | HostP->Mode, &HostP->Control);
- break;
- default:
- rio_dprintk(RIO_DEBUG_BOOT, "Unknown host type %d\n", HostP->Type);
- break;
- }
- return;
-}
-
-/*
-** Load in the host boot code - load it directly onto all halted hosts
-** of the correct type.
-**
-** Put your rubber pants on before messing with this code - even the magic
-** numbers have trouble understanding what they are doing here.
-*/
-
-int RIOBootCodeHOST(struct rio_info *p, struct DownLoad *rbp)
-{
- struct Host *HostP;
- u8 __iomem *Cad;
- PARM_MAP __iomem *ParmMapP;
- int RupN;
- int PortN;
- unsigned int host;
- u8 __iomem *StartP;
- u8 __iomem *DestP;
- int wait_count;
- u16 OldParmMap;
- u16 offset; /* It is very important that this is a u16 */
- u8 *DownCode = NULL;
- unsigned long flags;
-
- HostP = NULL; /* Assure the compiler we've initialized it */
-
-
- /* Walk the hosts */
- for (host = 0; host < p->RIONumHosts; host++) {
- rio_dprintk(RIO_DEBUG_BOOT, "Attempt to boot host %d\n", host);
- HostP = &p->RIOHosts[host];
-
- rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);
-
- /* Don't boot hosts already running */
- if ((HostP->Flags & RUN_STATE) != RC_WAITING) {
- rio_dprintk(RIO_DEBUG_BOOT, "%s %d already running\n", "Host", host);
- continue;
- }
-
- /*
- ** Grab a pointer to the card (ioremapped)
- */
- Cad = HostP->Caddr;
-
- /*
- ** We are going to (try) and load in rbp->Count bytes.
- ** The last byte will reside at p->RIOConf.HostLoadBase-1;
- ** Therefore, we need to start copying at address
- ** (caddr+p->RIOConf.HostLoadBase-rbp->Count)
- */
- StartP = &Cad[p->RIOConf.HostLoadBase - rbp->Count];
-
- rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for host is %p\n", Cad);
- rio_dprintk(RIO_DEBUG_BOOT, "kernel virtual address for download is %p\n", StartP);
- rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);
- rio_dprintk(RIO_DEBUG_BOOT, "size of download is 0x%x\n", rbp->Count);
-
- /* Make sure it fits */
- if (p->RIOConf.HostLoadBase < rbp->Count) {
- rio_dprintk(RIO_DEBUG_BOOT, "Bin too large\n");
- p->RIOError.Error = HOST_FILE_TOO_LARGE;
- func_exit();
- return -EFBIG;
- }
- /*
- ** Ensure that the host really is stopped.
- ** Disable it's external bus & twang its reset line.
- */
- RIOHostReset(HostP->Type, HostP->CardP, HostP->Slot);
-
- /*
- ** Copy the data directly from user space to the SRAM.
- ** This ain't going to be none too clever if the download
- ** code is bigger than this segment.
- */
- rio_dprintk(RIO_DEBUG_BOOT, "Copy in code\n");
-
- /* Buffer to local memory as we want to use I/O space and
- some cards only do 8 or 16 bit I/O */
-
- DownCode = vmalloc(rbp->Count);
- if (!DownCode) {
- p->RIOError.Error = NOT_ENOUGH_CORE_FOR_PCI_COPY;
- func_exit();
- return -ENOMEM;
- }
- if (copy_from_user(DownCode, rbp->DataP, rbp->Count)) {
- kfree(DownCode);
- p->RIOError.Error = COPYIN_FAILED;
- func_exit();
- return -EFAULT;
- }
- HostP->Copy(DownCode, StartP, rbp->Count);
- vfree(DownCode);
-
- rio_dprintk(RIO_DEBUG_BOOT, "Copy completed\n");
-
- /*
- ** S T O P !
- **
- ** Upto this point the code has been fairly rational, and possibly
- ** even straight forward. What follows is a pile of crud that will
- ** magically turn into six bytes of transputer assembler. Normally
- ** you would expect an array or something, but, being me, I have
- ** chosen [been told] to use a technique whereby the startup code
- ** will be correct if we change the loadbase for the code. Which
- ** brings us onto another issue - the loadbase is the *end* of the
- ** code, not the start.
- **
- ** If I were you I wouldn't start from here.
- */
-
- /*
- ** We now need to insert a short boot section into
- ** the memory at the end of Sram2. This is normally (de)composed
- ** of the last eight bytes of the download code. The
- ** download has been assembled/compiled to expect to be
- ** loaded from 0x7FFF downwards. We have loaded it
- ** at some other address. The startup code goes into the small
- ** ram window at Sram2, in the last 8 bytes, which are really
- ** at addresses 0x7FF8-0x7FFF.
- **
- ** If the loadbase is, say, 0x7C00, then we need to branch to
- ** address 0x7BFE to run the host.bin startup code. We assemble
- ** this jump manually.
- **
- ** The two byte sequence 60 08 is loaded into memory at address
- ** 0x7FFE,F. This is a local branch to location 0x7FF8 (60 is nfix 0,
- ** which adds '0' to the .O register, complements .O, and then shifts
- ** it left by 4 bit positions, 08 is a jump .O+8 instruction. This will
- ** add 8 to .O (which was 0xFFF0), and will branch RELATIVE to the new
- ** location. Now, the branch starts from the value of .PC (or .IP or
- ** whatever the bloody register is called on this chip), and the .PC
- ** will be pointing to the location AFTER the branch, in this case
- ** .PC == 0x8000, so the branch will be to 0x8000+0xFFF8 = 0x7FF8.
- **
- ** A long branch is coded at 0x7FF8. This consists of loading a four
- ** byte offset into .O using nfix (as above) and pfix operators. The
- ** pfix operates in exactly the same way as the nfix operator, but
- ** without the complement operation. The offset, of course, must be
- ** relative to the address of the byte AFTER the branch instruction,
- ** which will be (urm) 0x7FFC, so, our final destination of the branch
- ** (loadbase-2), has to be reached from here. Imagine that the loadbase
- ** is 0x7C00 (which it is), then we will need to branch to 0x7BFE (which
- ** is the first byte of the initial two byte short local branch of the
- ** download code).
- **
- ** To code a jump from 0x7FFC (which is where the branch will start
- ** from) to 0x7BFE, we will need to branch 0xFC02 bytes (0x7FFC+0xFC02)=
- ** 0x7BFE.
- ** This will be coded as four bytes:
- ** 60 2C 20 02
- ** being nfix .O+0
- ** pfix .O+C
- ** pfix .O+0
- ** jump .O+2
- **
- ** The nfix operator is used, so that the startup code will be
- ** compatible with the whole Tp family. (lies, damn lies, it'll never
- ** work in a month of Sundays).
- **
- ** The nfix nyble is the 1s complement of the nyble value you
- ** want to load - in this case we wanted 'F' so we nfix loaded '0'.
- */
-
-
- /*
- ** Dest points to the top 8 bytes of Sram2. The Tp jumps
- ** to 0x7FFE at reset time, and starts executing. This is
- ** a short branch to 0x7FF8, where a long branch is coded.
- */
-
- DestP = &Cad[0x7FF8]; /* <<<---- READ THE ABOVE COMMENTS */
-
-#define NFIX(N) (0x60 | (N)) /* .O = (~(.O + N))<<4 */
-#define PFIX(N) (0x20 | (N)) /* .O = (.O + N)<<4 */
-#define JUMP(N) (0x00 | (N)) /* .PC = .PC + .O */
-
- /*
- ** 0x7FFC is the address of the location following the last byte of
- ** the four byte jump instruction.
- ** READ THE ABOVE COMMENTS
- **
- ** offset is (TO-FROM) % MEMSIZE, but with compound buggering about.
- ** Memsize is 64K for this range of Tp, so offset is a short (unsigned,
- ** cos I don't understand 2's complement).
- */
- offset = (p->RIOConf.HostLoadBase - 2) - 0x7FFC;
-
- writeb(NFIX(((unsigned short) (~offset) >> (unsigned short) 12) & 0xF), DestP);
- writeb(PFIX((offset >> 8) & 0xF), DestP + 1);
- writeb(PFIX((offset >> 4) & 0xF), DestP + 2);
- writeb(JUMP(offset & 0xF), DestP + 3);
-
- writeb(NFIX(0), DestP + 6);
- writeb(JUMP(8), DestP + 7);
-
- rio_dprintk(RIO_DEBUG_BOOT, "host loadbase is 0x%x\n", p->RIOConf.HostLoadBase);
- rio_dprintk(RIO_DEBUG_BOOT, "startup offset is 0x%x\n", offset);
-
- /*
- ** Flag what is going on
- */
- HostP->Flags &= ~RUN_STATE;
- HostP->Flags |= RC_STARTUP;
-
- /*
- ** Grab a copy of the current ParmMap pointer, so we
- ** can tell when it has changed.
- */
- OldParmMap = readw(&HostP->__ParmMapR);
-
- rio_dprintk(RIO_DEBUG_BOOT, "Original parmmap is 0x%x\n", OldParmMap);
-
- /*
- ** And start it running (I hope).
- ** As there is nothing dodgy or obscure about the
- ** above code, this is guaranteed to work every time.
- */
- rio_dprintk(RIO_DEBUG_BOOT, "Host Type = 0x%x, Mode = 0x%x, IVec = 0x%x\n", HostP->Type, HostP->Mode, HostP->Ivec);
-
- rio_start_card_running(HostP);
-
- rio_dprintk(RIO_DEBUG_BOOT, "Set control port\n");
-
- /*
- ** Now, wait for upto five seconds for the Tp to setup the parmmap
- ** pointer:
- */
- for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && (readw(&HostP->__ParmMapR) == OldParmMap); wait_count++) {
- rio_dprintk(RIO_DEBUG_BOOT, "Checkout %d, 0x%x\n", wait_count, readw(&HostP->__ParmMapR));
- mdelay(100);
-
- }
-
- /*
- ** If the parmmap pointer is unchanged, then the host code
- ** has crashed & burned in a really spectacular way
- */
- if (readw(&HostP->__ParmMapR) == OldParmMap) {
- rio_dprintk(RIO_DEBUG_BOOT, "parmmap 0x%x\n", readw(&HostP->__ParmMapR));
- rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail\n");
- HostP->Flags &= ~RUN_STATE;
- HostP->Flags |= RC_STUFFED;
- RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
- continue;
- }
-
- rio_dprintk(RIO_DEBUG_BOOT, "Running 0x%x\n", readw(&HostP->__ParmMapR));
-
- /*
- ** Well, the board thought it was OK, and setup its parmmap
- ** pointer. For the time being, we will pretend that this
- ** board is running, and check out what the error flag says.
- */
-
- /*
- ** Grab a 32 bit pointer to the parmmap structure
- */
- ParmMapP = (PARM_MAP __iomem *) RIO_PTR(Cad, readw(&HostP->__ParmMapR));
- rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);
- ParmMapP = (PARM_MAP __iomem *)(Cad + readw(&HostP->__ParmMapR));
- rio_dprintk(RIO_DEBUG_BOOT, "ParmMapP : %p\n", ParmMapP);
-
- /*
- ** The links entry should be 0xFFFF; we set it up
- ** with a mask to say how many PHBs to use, and
- ** which links to use.
- */
- if (readw(&ParmMapP->links) != 0xFFFF) {
- rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);
- rio_dprintk(RIO_DEBUG_BOOT, "Links = 0x%x\n", readw(&ParmMapP->links));
- HostP->Flags &= ~RUN_STATE;
- HostP->Flags |= RC_STUFFED;
- RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
- continue;
- }
-
- writew(RIO_LINK_ENABLE, &ParmMapP->links);
-
- /*
- ** now wait for the card to set all the parmmap->XXX stuff
- ** this is a wait of upto two seconds....
- */
- rio_dprintk(RIO_DEBUG_BOOT, "Looking for init_done - %d ticks\n", p->RIOConf.StartupTime);
- HostP->timeout_id = 0;
- for (wait_count = 0; (wait_count < p->RIOConf.StartupTime) && !readw(&ParmMapP->init_done); wait_count++) {
- rio_dprintk(RIO_DEBUG_BOOT, "Waiting for init_done\n");
- mdelay(100);
- }
- rio_dprintk(RIO_DEBUG_BOOT, "OK! init_done!\n");
-
- if (readw(&ParmMapP->error) != E_NO_ERROR || !readw(&ParmMapP->init_done)) {
- rio_dprintk(RIO_DEBUG_BOOT, "RIO Mesg Run Fail %s\n", HostP->Name);
- rio_dprintk(RIO_DEBUG_BOOT, "Timedout waiting for init_done\n");
- HostP->Flags &= ~RUN_STATE;
- HostP->Flags |= RC_STUFFED;
- RIOHostReset( HostP->Type, HostP->CardP, HostP->Slot );
- continue;
- }
-
- rio_dprintk(RIO_DEBUG_BOOT, "Got init_done\n");
-
- /*
- ** It runs! It runs!
- */
- rio_dprintk(RIO_DEBUG_BOOT, "Host ID %x Running\n", HostP->UniqueNum);
-
- /*
- ** set the time period between interrupts.
- */
- writew(p->RIOConf.Timer, &ParmMapP->timer);
-
- /*
- ** Translate all the 16 bit pointers in the __ParmMapR into
- ** 32 bit pointers for the driver in ioremap space.
- */
- HostP->ParmMapP = ParmMapP;
- HostP->PhbP = (struct PHB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_ptr));
- HostP->RupP = (struct RUP __iomem *) RIO_PTR(Cad, readw(&ParmMapP->rups));
- HostP->PhbNumP = (unsigned short __iomem *) RIO_PTR(Cad, readw(&ParmMapP->phb_num_ptr));
- HostP->LinkStrP = (struct LPB __iomem *) RIO_PTR(Cad, readw(&ParmMapP->link_str_ptr));
-
- /*
- ** point the UnixRups at the real Rups
- */
- for (RupN = 0; RupN < MAX_RUP; RupN++) {
- HostP->UnixRups[RupN].RupP = &HostP->RupP[RupN];
- HostP->UnixRups[RupN].Id = RupN + 1;
- HostP->UnixRups[RupN].BaseSysPort = NO_PORT;
- spin_lock_init(&HostP->UnixRups[RupN].RupLock);
- }
-
- for (RupN = 0; RupN < LINKS_PER_UNIT; RupN++) {
- HostP->UnixRups[RupN + MAX_RUP].RupP = &HostP->LinkStrP[RupN].rup;
- HostP->UnixRups[RupN + MAX_RUP].Id = 0;
- HostP->UnixRups[RupN + MAX_RUP].BaseSysPort = NO_PORT;
- spin_lock_init(&HostP->UnixRups[RupN + MAX_RUP].RupLock);
- }
-
- /*
- ** point the PortP->Phbs at the real Phbs
- */
- for (PortN = p->RIOFirstPortsMapped; PortN < p->RIOLastPortsMapped + PORTS_PER_RTA; PortN++) {
- if (p->RIOPortp[PortN]->HostP == HostP) {
- struct Port *PortP = p->RIOPortp[PortN];
- struct PHB __iomem *PhbP;
- /* int oldspl; */
-
- if (!PortP->Mapped)
- continue;
-
- PhbP = &HostP->PhbP[PortP->HostPort];
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- PortP->PhbP = PhbP;
-
- PortP->TxAdd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_add));
- PortP->TxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_start));
- PortP->TxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->tx_end));
- PortP->RxRemove = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_remove));
- PortP->RxStart = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_start));
- PortP->RxEnd = (u16 __iomem *) RIO_PTR(Cad, readw(&PhbP->rx_end));
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- /*
- ** point the UnixRup at the base SysPort
- */
- if (!(PortN % PORTS_PER_RTA))
- HostP->UnixRups[PortP->RupNum].BaseSysPort = PortN;
- }
- }
-
- rio_dprintk(RIO_DEBUG_BOOT, "Set the card running... \n");
- /*
- ** last thing - show the world that everything is in place
- */
- HostP->Flags &= ~RUN_STATE;
- HostP->Flags |= RC_RUNNING;
- }
- /*
- ** MPX always uses a poller. This is actually patched into the system
- ** configuration and called directly from each clock tick.
- **
- */
- p->RIOPolling = 1;
-
- p->RIOSystemUp++;
-
- rio_dprintk(RIO_DEBUG_BOOT, "Done everything %x\n", HostP->Ivec);
- func_exit();
- return 0;
-}
-
-
-
-/**
- * RIOBootRup - Boot an RTA
- * @p: rio we are working with
- * @Rup: Rup number
- * @HostP: host object
- * @PacketP: packet to use
- *
- * If we have successfully processed this boot, then
- * return 1. If we havent, then return 0.
- */
-
-int RIOBootRup(struct rio_info *p, unsigned int Rup, struct Host *HostP, struct PKT __iomem *PacketP)
-{
- struct PktCmd __iomem *PktCmdP = (struct PktCmd __iomem *) PacketP->data;
- struct PktCmd_M *PktReplyP;
- struct CmdBlk *CmdBlkP;
- unsigned int sequence;
-
- /*
- ** If we haven't been told what to boot, we can't boot it.
- */
- if (p->RIONumBootPkts == 0) {
- rio_dprintk(RIO_DEBUG_BOOT, "No RTA code to download yet\n");
- return 0;
- }
-
- /*
- ** Special case of boot completed - if we get one of these then we
- ** don't need a command block. For all other cases we do, so handle
- ** this first and then get a command block, then handle every other
- ** case, relinquishing the command block if disaster strikes!
- */
- if ((readb(&PacketP->len) & PKT_CMD_BIT) && (readb(&PktCmdP->Command) == BOOT_COMPLETED))
- return RIOBootComplete(p, HostP, Rup, PktCmdP);
-
- /*
- ** Try to allocate a command block. This is in kernel space
- */
- if (!(CmdBlkP = RIOGetCmdBlk())) {
- rio_dprintk(RIO_DEBUG_BOOT, "No command blocks to boot RTA! come back later.\n");
- return 0;
- }
-
- /*
- ** Fill in the default info on the command block
- */
- CmdBlkP->Packet.dest_unit = Rup < (unsigned short) MAX_RUP ? Rup : 0;
- CmdBlkP->Packet.dest_port = BOOT_RUP;
- CmdBlkP->Packet.src_unit = 0;
- CmdBlkP->Packet.src_port = BOOT_RUP;
-
- CmdBlkP->PreFuncP = CmdBlkP->PostFuncP = NULL;
- PktReplyP = (struct PktCmd_M *) CmdBlkP->Packet.data;
-
- /*
- ** process COMMANDS on the boot rup!
- */
- if (readb(&PacketP->len) & PKT_CMD_BIT) {
- /*
- ** We only expect one type of command - a BOOT_REQUEST!
- */
- if (readb(&PktCmdP->Command) != BOOT_REQUEST) {
- rio_dprintk(RIO_DEBUG_BOOT, "Unexpected command %d on BOOT RUP %d of host %Zd\n", readb(&PktCmdP->Command), Rup, HostP - p->RIOHosts);
- RIOFreeCmdBlk(CmdBlkP);
- return 1;
- }
-
- /*
- ** Build a Boot Sequence command block
- **
- ** We no longer need to use "Boot Mode", we'll always allow
- ** boot requests - the boot will not complete if the device
- ** appears in the bindings table.
- **
- ** We'll just (always) set the command field in packet reply
- ** to allow an attempted boot sequence :
- */
- PktReplyP->Command = BOOT_SEQUENCE;
-
- PktReplyP->BootSequence.NumPackets = p->RIONumBootPkts;
- PktReplyP->BootSequence.LoadBase = p->RIOConf.RtaLoadBase;
- PktReplyP->BootSequence.CodeSize = p->RIOBootCount;
-
- CmdBlkP->Packet.len = BOOT_SEQUENCE_LEN | PKT_CMD_BIT;
-
- memcpy((void *) &CmdBlkP->Packet.data[BOOT_SEQUENCE_LEN], "BOOT", 4);
-
- rio_dprintk(RIO_DEBUG_BOOT, "Boot RTA on Host %Zd Rup %d - %d (0x%x) packets to 0x%x\n", HostP - p->RIOHosts, Rup, p->RIONumBootPkts, p->RIONumBootPkts, p->RIOConf.RtaLoadBase);
-
- /*
- ** If this host is in slave mode, send the RTA an invalid boot
- ** sequence command block to force it to kill the boot. We wait
- ** for half a second before sending this packet to prevent the RTA
- ** attempting to boot too often. The master host should then grab
- ** the RTA and make it its own.
- */
- p->RIOBooting++;
- RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
- return 1;
- }
-
- /*
- ** It is a request for boot data.
- */
- sequence = readw(&PktCmdP->Sequence);
-
- rio_dprintk(RIO_DEBUG_BOOT, "Boot block %d on Host %Zd Rup%d\n", sequence, HostP - p->RIOHosts, Rup);
-
- if (sequence >= p->RIONumBootPkts) {
- rio_dprintk(RIO_DEBUG_BOOT, "Got a request for packet %d, max is %d\n", sequence, p->RIONumBootPkts);
- }
-
- PktReplyP->Sequence = sequence;
- memcpy(PktReplyP->BootData, p->RIOBootPackets[p->RIONumBootPkts - sequence - 1], RTA_BOOT_DATA_SIZE);
- CmdBlkP->Packet.len = PKT_MAX_DATA_LEN;
- RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
- return 1;
-}
-
-/**
- * RIOBootComplete - RTA boot is done
- * @p: RIO we are working with
- * @HostP: Host structure
- * @Rup: RUP being used
- * @PktCmdP: Packet command that was used
- *
- * This function is called when an RTA been booted.
- * If booted by a host, HostP->HostUniqueNum is the booting host.
- * If booted by an RTA, HostP->Mapping[Rup].RtaUniqueNum is the booting RTA.
- * RtaUniq is the booted RTA.
- */
-
-static int RIOBootComplete(struct rio_info *p, struct Host *HostP, unsigned int Rup, struct PktCmd __iomem *PktCmdP)
-{
- struct Map *MapP = NULL;
- struct Map *MapP2 = NULL;
- int Flag;
- int found;
- int host, rta;
- int EmptySlot = -1;
- int entry, entry2;
- char *MyType, *MyName;
- unsigned int MyLink;
- unsigned short RtaType;
- u32 RtaUniq = (readb(&PktCmdP->UniqNum[0])) + (readb(&PktCmdP->UniqNum[1]) << 8) + (readb(&PktCmdP->UniqNum[2]) << 16) + (readb(&PktCmdP->UniqNum[3]) << 24);
-
- p->RIOBooting = 0;
-
- rio_dprintk(RIO_DEBUG_BOOT, "RTA Boot completed - BootInProgress now %d\n", p->RIOBooting);
-
- /*
- ** Determine type of unit (16/8 port RTA).
- */
-
- RtaType = GetUnitType(RtaUniq);
- if (Rup >= (unsigned short) MAX_RUP)
- rio_dprintk(RIO_DEBUG_BOOT, "RIO: Host %s has booted an RTA(%d) on link %c\n", HostP->Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');
- else
- rio_dprintk(RIO_DEBUG_BOOT, "RIO: RTA %s has booted an RTA(%d) on link %c\n", HostP->Mapping[Rup].Name, 8 * RtaType, readb(&PktCmdP->LinkNum) + 'A');
-
- rio_dprintk(RIO_DEBUG_BOOT, "UniqNum is 0x%x\n", RtaUniq);
-
- if (RtaUniq == 0x00000000 || RtaUniq == 0xffffffff) {
- rio_dprintk(RIO_DEBUG_BOOT, "Illegal RTA Uniq Number\n");
- return 1;
- }
-
- /*
- ** If this RTA has just booted an RTA which doesn't belong to this
- ** system, or the system is in slave mode, do not attempt to create
- ** a new table entry for it.
- */
-
- if (!RIOBootOk(p, HostP, RtaUniq)) {
- MyLink = readb(&PktCmdP->LinkNum);
- if (Rup < (unsigned short) MAX_RUP) {
- /*
- ** RtaUniq was clone booted (by this RTA). Instruct this RTA
- ** to hold off further attempts to boot on this link for 30
- ** seconds.
- */
- if (RIOSuspendBootRta(HostP, HostP->Mapping[Rup].ID, MyLink)) {
- rio_dprintk(RIO_DEBUG_BOOT, "RTA failed to suspend booting on link %c\n", 'A' + MyLink);
- }
- } else
- /*
- ** RtaUniq was booted by this host. Set the booting link
- ** to hold off for 30 seconds to give another unit a
- ** chance to boot it.
- */
- writew(30, &HostP->LinkStrP[MyLink].WaitNoBoot);
- rio_dprintk(RIO_DEBUG_BOOT, "RTA %x not owned - suspend booting down link %c on unit %x\n", RtaUniq, 'A' + MyLink, HostP->Mapping[Rup].RtaUniqueNum);
- return 1;
- }
-
- /*
- ** Check for a SLOT_IN_USE entry for this RTA attached to the
- ** current host card in the driver table.
- **
- ** If it exists, make a note that we have booted it. Other parts of
- ** the driver are interested in this information at a later date,
- ** in particular when the booting RTA asks for an ID for this unit,
- ** we must have set the BOOTED flag, and the NEWBOOT flag is used
- ** to force an open on any ports that where previously open on this
- ** unit.
- */
- for (entry = 0; entry < MAX_RUP; entry++) {
- unsigned int sysport;
-
- if ((HostP->Mapping[entry].Flags & SLOT_IN_USE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {
- HostP->Mapping[entry].Flags |= RTA_BOOTED | RTA_NEWBOOT;
- if ((sysport = HostP->Mapping[entry].SysPort) != NO_PORT) {
- if (sysport < p->RIOFirstPortsBooted)
- p->RIOFirstPortsBooted = sysport;
- if (sysport > p->RIOLastPortsBooted)
- p->RIOLastPortsBooted = sysport;
- /*
- ** For a 16 port RTA, check the second bank of 8 ports
- */
- if (RtaType == TYPE_RTA16) {
- entry2 = HostP->Mapping[entry].ID2 - 1;
- HostP->Mapping[entry2].Flags |= RTA_BOOTED | RTA_NEWBOOT;
- sysport = HostP->Mapping[entry2].SysPort;
- if (sysport < p->RIOFirstPortsBooted)
- p->RIOFirstPortsBooted = sysport;
- if (sysport > p->RIOLastPortsBooted)
- p->RIOLastPortsBooted = sysport;
- }
- }
- if (RtaType == TYPE_RTA16)
- rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given IDs %d+%d\n", entry + 1, entry2 + 1);
- else
- rio_dprintk(RIO_DEBUG_BOOT, "RTA will be given ID %d\n", entry + 1);
- return 1;
- }
- }
-
- rio_dprintk(RIO_DEBUG_BOOT, "RTA not configured for this host\n");
-
- if (Rup >= (unsigned short) MAX_RUP) {
- /*
- ** It was a host that did the booting
- */
- MyType = "Host";
- MyName = HostP->Name;
- } else {
- /*
- ** It was an RTA that did the booting
- */
- MyType = "RTA";
- MyName = HostP->Mapping[Rup].Name;
- }
- MyLink = readb(&PktCmdP->LinkNum);
-
- /*
- ** There is no SLOT_IN_USE entry for this RTA attached to the current
- ** host card in the driver table.
- **
- ** Check for a SLOT_TENTATIVE entry for this RTA attached to the
- ** current host card in the driver table.
- **
- ** If we find one, then we re-use that slot.
- */
- for (entry = 0; entry < MAX_RUP; entry++) {
- if ((HostP->Mapping[entry].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry].RtaUniqueNum == RtaUniq)) {
- if (RtaType == TYPE_RTA16) {
- entry2 = HostP->Mapping[entry].ID2 - 1;
- if ((HostP->Mapping[entry2].Flags & SLOT_TENTATIVE) && (HostP->Mapping[entry2].RtaUniqueNum == RtaUniq))
- rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slots (%d+%d)\n", entry, entry2);
- else
- continue;
- } else
- rio_dprintk(RIO_DEBUG_BOOT, "Found previous tentative slot (%d)\n", entry);
- if (!p->RIONoMessage)
- printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');
- return 1;
- }
- }
-
- /*
- ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
- ** attached to the current host card in the driver table.
- **
- ** Check if there is a SLOT_IN_USE or SLOT_TENTATIVE entry on another
- ** host for this RTA in the driver table.
- **
- ** For a SLOT_IN_USE entry on another host, we need to delete the RTA
- ** entry from the other host and add it to this host (using some of
- ** the functions from table.c which do this).
- ** For a SLOT_TENTATIVE entry on another host, we must cope with the
- ** following scenario:
- **
- ** + Plug 8 port RTA into host A. (This creates SLOT_TENTATIVE entry
- ** in table)
- ** + Unplug RTA and plug into host B. (We now have 2 SLOT_TENTATIVE
- ** entries)
- ** + Configure RTA on host B. (This slot now becomes SLOT_IN_USE)
- ** + Unplug RTA and plug back into host A.
- ** + Configure RTA on host A. We now have the same RTA configured
- ** with different ports on two different hosts.
- */
- rio_dprintk(RIO_DEBUG_BOOT, "Have we seen RTA %x before?\n", RtaUniq);
- found = 0;
- Flag = 0; /* Convince the compiler this variable is initialized */
- for (host = 0; !found && (host < p->RIONumHosts); host++) {
- for (rta = 0; rta < MAX_RUP; rta++) {
- if ((p->RIOHosts[host].Mapping[rta].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) && (p->RIOHosts[host].Mapping[rta].RtaUniqueNum == RtaUniq)) {
- Flag = p->RIOHosts[host].Mapping[rta].Flags;
- MapP = &p->RIOHosts[host].Mapping[rta];
- if (RtaType == TYPE_RTA16) {
- MapP2 = &p->RIOHosts[host].Mapping[MapP->ID2 - 1];
- rio_dprintk(RIO_DEBUG_BOOT, "This RTA is units %d+%d from host %s\n", rta + 1, MapP->ID2, p->RIOHosts[host].Name);
- } else
- rio_dprintk(RIO_DEBUG_BOOT, "This RTA is unit %d from host %s\n", rta + 1, p->RIOHosts[host].Name);
- found = 1;
- break;
- }
- }
- }
-
- /*
- ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
- ** attached to the current host card in the driver table.
- **
- ** If we have not found a SLOT_IN_USE or SLOT_TENTATIVE entry on
- ** another host for this RTA in the driver table...
- **
- ** Check for a SLOT_IN_USE entry for this RTA in the config table.
- */
- if (!MapP) {
- rio_dprintk(RIO_DEBUG_BOOT, "Look for RTA %x in RIOSavedTable\n", RtaUniq);
- for (rta = 0; rta < TOTAL_MAP_ENTRIES; rta++) {
- rio_dprintk(RIO_DEBUG_BOOT, "Check table entry %d (%x)", rta, p->RIOSavedTable[rta].RtaUniqueNum);
-
- if ((p->RIOSavedTable[rta].Flags & SLOT_IN_USE) && (p->RIOSavedTable[rta].RtaUniqueNum == RtaUniq)) {
- MapP = &p->RIOSavedTable[rta];
- Flag = p->RIOSavedTable[rta].Flags;
- if (RtaType == TYPE_RTA16) {
- for (entry2 = rta + 1; entry2 < TOTAL_MAP_ENTRIES; entry2++) {
- if (p->RIOSavedTable[entry2].RtaUniqueNum == RtaUniq)
- break;
- }
- MapP2 = &p->RIOSavedTable[entry2];
- rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entries %d+%d\n", rta, entry2);
- } else
- rio_dprintk(RIO_DEBUG_BOOT, "This RTA is from table entry %d\n", rta);
- break;
- }
- }
- }
-
- /*
- ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
- ** attached to the current host card in the driver table.
- **
- ** We may have found a SLOT_IN_USE entry on another host for this
- ** RTA in the config table, or a SLOT_IN_USE or SLOT_TENTATIVE entry
- ** on another host for this RTA in the driver table.
- **
- ** Check the driver table for room to fit this newly discovered RTA.
- ** RIOFindFreeID() first looks for free slots and if it does not
- ** find any free slots it will then attempt to oust any
- ** tentative entry in the table.
- */
- EmptySlot = 1;
- if (RtaType == TYPE_RTA16) {
- if (RIOFindFreeID(p, HostP, &entry, &entry2) == 0) {
- RIODefaultName(p, HostP, entry);
- rio_fill_host_slot(entry, entry2, RtaUniq, HostP);
- EmptySlot = 0;
- }
- } else {
- if (RIOFindFreeID(p, HostP, &entry, NULL) == 0) {
- RIODefaultName(p, HostP, entry);
- rio_fill_host_slot(entry, 0, RtaUniq, HostP);
- EmptySlot = 0;
- }
- }
-
- /*
- ** There is no SLOT_IN_USE or SLOT_TENTATIVE entry for this RTA
- ** attached to the current host card in the driver table.
- **
- ** If we found a SLOT_IN_USE entry on another host for this
- ** RTA in the config or driver table, and there are enough free
- ** slots in the driver table, then we need to move it over and
- ** delete it from the other host.
- ** If we found a SLOT_TENTATIVE entry on another host for this
- ** RTA in the driver table, just delete the other host entry.
- */
- if (EmptySlot == 0) {
- if (MapP) {
- if (Flag & SLOT_IN_USE) {
- rio_dprintk(RIO_DEBUG_BOOT, "This RTA configured on another host - move entry to current host (1)\n");
- HostP->Mapping[entry].SysPort = MapP->SysPort;
- memcpy(HostP->Mapping[entry].Name, MapP->Name, MAX_NAME_LEN);
- HostP->Mapping[entry].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT;
- RIOReMapPorts(p, HostP, &HostP->Mapping[entry]);
- if (HostP->Mapping[entry].SysPort < p->RIOFirstPortsBooted)
- p->RIOFirstPortsBooted = HostP->Mapping[entry].SysPort;
- if (HostP->Mapping[entry].SysPort > p->RIOLastPortsBooted)
- p->RIOLastPortsBooted = HostP->Mapping[entry].SysPort;
- rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) MapP->SysPort, MapP->Name);
- } else {
- rio_dprintk(RIO_DEBUG_BOOT, "This RTA has a tentative entry on another host - delete that entry (1)\n");
- HostP->Mapping[entry].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT;
- }
- if (RtaType == TYPE_RTA16) {
- if (Flag & SLOT_IN_USE) {
- HostP->Mapping[entry2].Flags = SLOT_IN_USE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;
- HostP->Mapping[entry2].SysPort = MapP2->SysPort;
- /*
- ** Map second block of ttys for 16 port RTA
- */
- RIOReMapPorts(p, HostP, &HostP->Mapping[entry2]);
- if (HostP->Mapping[entry2].SysPort < p->RIOFirstPortsBooted)
- p->RIOFirstPortsBooted = HostP->Mapping[entry2].SysPort;
- if (HostP->Mapping[entry2].SysPort > p->RIOLastPortsBooted)
- p->RIOLastPortsBooted = HostP->Mapping[entry2].SysPort;
- rio_dprintk(RIO_DEBUG_BOOT, "SysPort %d, Name %s\n", (int) HostP->Mapping[entry2].SysPort, HostP->Mapping[entry].Name);
- } else
- HostP->Mapping[entry2].Flags = SLOT_TENTATIVE | RTA_BOOTED | RTA_NEWBOOT | RTA16_SECOND_SLOT;
- memset(MapP2, 0, sizeof(struct Map));
- }
- memset(MapP, 0, sizeof(struct Map));
- if (!p->RIONoMessage)
- printk("An orphaned RTA has been adopted by %s '%s' (%c).\n", MyType, MyName, MyLink + 'A');
- } else if (!p->RIONoMessage)
- printk("RTA connected to %s '%s' (%c) not configured.\n", MyType, MyName, MyLink + 'A');
- RIOSetChange(p);
- return 1;
- }
-
- /*
- ** There is no room in the driver table to make an entry for the
- ** booted RTA. Keep a note of its Uniq Num in the overflow table,
- ** so we can ignore it's ID requests.
- */
- if (!p->RIONoMessage)
- printk("The RTA connected to %s '%s' (%c) cannot be configured. You cannot configure more than 128 ports to one host card.\n", MyType, MyName, MyLink + 'A');
- for (entry = 0; entry < HostP->NumExtraBooted; entry++) {
- if (HostP->ExtraUnits[entry] == RtaUniq) {
- /*
- ** already got it!
- */
- return 1;
- }
- }
- /*
- ** If there is room, add the unit to the list of extras
- */
- if (HostP->NumExtraBooted < MAX_EXTRA_UNITS)
- HostP->ExtraUnits[HostP->NumExtraBooted++] = RtaUniq;
- return 1;
-}
-
-
-/*
-** If the RTA or its host appears in the RIOBindTab[] structure then
-** we mustn't boot the RTA and should return 0.
-** This operation is slightly different from the other drivers for RIO
-** in that this is designed to work with the new utilities
-** not config.rio and is FAR SIMPLER.
-** We no longer support the RIOBootMode variable. It is all done from the
-** "boot/noboot" field in the rio.cf file.
-*/
-int RIOBootOk(struct rio_info *p, struct Host *HostP, unsigned long RtaUniq)
-{
- int Entry;
- unsigned int HostUniq = HostP->UniqueNum;
-
- /*
- ** Search bindings table for RTA or its parent.
- ** If it exists, return 0, else 1.
- */
- for (Entry = 0; (Entry < MAX_RTA_BINDINGS) && (p->RIOBindTab[Entry] != 0); Entry++) {
- if ((p->RIOBindTab[Entry] == HostUniq) || (p->RIOBindTab[Entry] == RtaUniq))
- return 0;
- }
- return 1;
-}
-
-/*
-** Make an empty slot tentative. If this is a 16 port RTA, make both
-** slots tentative, and the second one RTA_SECOND_SLOT as well.
-*/
-
-void rio_fill_host_slot(int entry, int entry2, unsigned int rta_uniq, struct Host *host)
-{
- int link;
-
- rio_dprintk(RIO_DEBUG_BOOT, "rio_fill_host_slot(%d, %d, 0x%x...)\n", entry, entry2, rta_uniq);
-
- host->Mapping[entry].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE);
- host->Mapping[entry].SysPort = NO_PORT;
- host->Mapping[entry].RtaUniqueNum = rta_uniq;
- host->Mapping[entry].HostUniqueNum = host->UniqueNum;
- host->Mapping[entry].ID = entry + 1;
- host->Mapping[entry].ID2 = 0;
- if (entry2) {
- host->Mapping[entry2].Flags = (RTA_BOOTED | RTA_NEWBOOT | SLOT_TENTATIVE | RTA16_SECOND_SLOT);
- host->Mapping[entry2].SysPort = NO_PORT;
- host->Mapping[entry2].RtaUniqueNum = rta_uniq;
- host->Mapping[entry2].HostUniqueNum = host->UniqueNum;
- host->Mapping[entry2].Name[0] = '\0';
- host->Mapping[entry2].ID = entry2 + 1;
- host->Mapping[entry2].ID2 = entry + 1;
- host->Mapping[entry].ID2 = entry2 + 1;
- }
- /*
- ** Must set these up, so that utilities show
- ** topology of 16 port RTAs correctly
- */
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- host->Mapping[entry].Topology[link].Unit = ROUTE_DISCONNECT;
- host->Mapping[entry].Topology[link].Link = NO_LINK;
- if (entry2) {
- host->Mapping[entry2].Topology[link].Unit = ROUTE_DISCONNECT;
- host->Mapping[entry2].Topology[link].Link = NO_LINK;
- }
- }
-}
diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
deleted file mode 100644
index f121357e5af..00000000000
--- a/drivers/char/rio/riocmd.c
+++ /dev/null
@@ -1,939 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** ported from the existing SCO driver source
-**
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : riocmd.c
-** SID : 1.2
-** Last Modified : 11/6/98 10:33:41
-** Retrieved : 11/6/98 10:33:49
-**
-** ident @(#)riocmd.c 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-
-
-static struct IdentifyRta IdRta;
-static struct KillNeighbour KillUnit;
-
-int RIOFoadRta(struct Host *HostP, struct Map *MapP)
-{
- struct CmdBlk *CmdBlkP;
-
- rio_dprintk(RIO_DEBUG_CMD, "FOAD RTA\n");
-
- CmdBlkP = RIOGetCmdBlk();
-
- if (!CmdBlkP) {
- rio_dprintk(RIO_DEBUG_CMD, "FOAD RTA: GetCmdBlk failed\n");
- return -ENXIO;
- }
-
- CmdBlkP->Packet.dest_unit = MapP->ID;
- CmdBlkP->Packet.dest_port = BOOT_RUP;
- CmdBlkP->Packet.src_unit = 0;
- CmdBlkP->Packet.src_port = BOOT_RUP;
- CmdBlkP->Packet.len = 0x84;
- CmdBlkP->Packet.data[0] = IFOAD;
- CmdBlkP->Packet.data[1] = 0;
- CmdBlkP->Packet.data[2] = IFOAD_MAGIC & 0xFF;
- CmdBlkP->Packet.data[3] = (IFOAD_MAGIC >> 8) & 0xFF;
-
- if (RIOQueueCmdBlk(HostP, MapP->ID - 1, CmdBlkP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CMD, "FOAD RTA: Failed to queue foad command\n");
- return -EIO;
- }
- return 0;
-}
-
-int RIOZombieRta(struct Host *HostP, struct Map *MapP)
-{
- struct CmdBlk *CmdBlkP;
-
- rio_dprintk(RIO_DEBUG_CMD, "ZOMBIE RTA\n");
-
- CmdBlkP = RIOGetCmdBlk();
-
- if (!CmdBlkP) {
- rio_dprintk(RIO_DEBUG_CMD, "ZOMBIE RTA: GetCmdBlk failed\n");
- return -ENXIO;
- }
-
- CmdBlkP->Packet.dest_unit = MapP->ID;
- CmdBlkP->Packet.dest_port = BOOT_RUP;
- CmdBlkP->Packet.src_unit = 0;
- CmdBlkP->Packet.src_port = BOOT_RUP;
- CmdBlkP->Packet.len = 0x84;
- CmdBlkP->Packet.data[0] = ZOMBIE;
- CmdBlkP->Packet.data[1] = 0;
- CmdBlkP->Packet.data[2] = ZOMBIE_MAGIC & 0xFF;
- CmdBlkP->Packet.data[3] = (ZOMBIE_MAGIC >> 8) & 0xFF;
-
- if (RIOQueueCmdBlk(HostP, MapP->ID - 1, CmdBlkP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CMD, "ZOMBIE RTA: Failed to queue zombie command\n");
- return -EIO;
- }
- return 0;
-}
-
-int RIOCommandRta(struct rio_info *p, unsigned long RtaUnique, int (*func) (struct Host * HostP, struct Map * MapP))
-{
- unsigned int Host;
-
- rio_dprintk(RIO_DEBUG_CMD, "Command RTA 0x%lx func %p\n", RtaUnique, func);
-
- if (!RtaUnique)
- return (0);
-
- for (Host = 0; Host < p->RIONumHosts; Host++) {
- unsigned int Rta;
- struct Host *HostP = &p->RIOHosts[Host];
-
- for (Rta = 0; Rta < RTAS_PER_HOST; Rta++) {
- struct Map *MapP = &HostP->Mapping[Rta];
-
- if (MapP->RtaUniqueNum == RtaUnique) {
- uint Link;
-
- /*
- ** now, lets just check we have a route to it...
- ** IF the routing stuff is working, then one of the
- ** topology entries for this unit will have a legit
- ** route *somewhere*. We care not where - if its got
- ** any connections, we can get to it.
- */
- for (Link = 0; Link < LINKS_PER_UNIT; Link++) {
- if (MapP->Topology[Link].Unit <= (u8) MAX_RUP) {
- /*
- ** Its worth trying the operation...
- */
- return (*func) (HostP, MapP);
- }
- }
- }
- }
- }
- return -ENXIO;
-}
-
-
-int RIOIdentifyRta(struct rio_info *p, void __user * arg)
-{
- unsigned int Host;
-
- if (copy_from_user(&IdRta, arg, sizeof(IdRta))) {
- rio_dprintk(RIO_DEBUG_CMD, "RIO_IDENTIFY_RTA copy failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
-
- for (Host = 0; Host < p->RIONumHosts; Host++) {
- unsigned int Rta;
- struct Host *HostP = &p->RIOHosts[Host];
-
- for (Rta = 0; Rta < RTAS_PER_HOST; Rta++) {
- struct Map *MapP = &HostP->Mapping[Rta];
-
- if (MapP->RtaUniqueNum == IdRta.RtaUnique) {
- uint Link;
- /*
- ** now, lets just check we have a route to it...
- ** IF the routing stuff is working, then one of the
- ** topology entries for this unit will have a legit
- ** route *somewhere*. We care not where - if its got
- ** any connections, we can get to it.
- */
- for (Link = 0; Link < LINKS_PER_UNIT; Link++) {
- if (MapP->Topology[Link].Unit <= (u8) MAX_RUP) {
- /*
- ** Its worth trying the operation...
- */
- struct CmdBlk *CmdBlkP;
-
- rio_dprintk(RIO_DEBUG_CMD, "IDENTIFY RTA\n");
-
- CmdBlkP = RIOGetCmdBlk();
-
- if (!CmdBlkP) {
- rio_dprintk(RIO_DEBUG_CMD, "IDENTIFY RTA: GetCmdBlk failed\n");
- return -ENXIO;
- }
-
- CmdBlkP->Packet.dest_unit = MapP->ID;
- CmdBlkP->Packet.dest_port = BOOT_RUP;
- CmdBlkP->Packet.src_unit = 0;
- CmdBlkP->Packet.src_port = BOOT_RUP;
- CmdBlkP->Packet.len = 0x84;
- CmdBlkP->Packet.data[0] = IDENTIFY;
- CmdBlkP->Packet.data[1] = 0;
- CmdBlkP->Packet.data[2] = IdRta.ID;
-
- if (RIOQueueCmdBlk(HostP, MapP->ID - 1, CmdBlkP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CMD, "IDENTIFY RTA: Failed to queue command\n");
- return -EIO;
- }
- return 0;
- }
- }
- }
- }
- }
- return -ENOENT;
-}
-
-
-int RIOKillNeighbour(struct rio_info *p, void __user * arg)
-{
- uint Host;
- uint ID;
- struct Host *HostP;
- struct CmdBlk *CmdBlkP;
-
- rio_dprintk(RIO_DEBUG_CMD, "KILL HOST NEIGHBOUR\n");
-
- if (copy_from_user(&KillUnit, arg, sizeof(KillUnit))) {
- rio_dprintk(RIO_DEBUG_CMD, "RIO_KILL_NEIGHBOUR copy failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
-
- if (KillUnit.Link > 3)
- return -ENXIO;
-
- CmdBlkP = RIOGetCmdBlk();
-
- if (!CmdBlkP) {
- rio_dprintk(RIO_DEBUG_CMD, "UFOAD: GetCmdBlk failed\n");
- return -ENXIO;
- }
-
- CmdBlkP->Packet.dest_unit = 0;
- CmdBlkP->Packet.src_unit = 0;
- CmdBlkP->Packet.dest_port = BOOT_RUP;
- CmdBlkP->Packet.src_port = BOOT_RUP;
- CmdBlkP->Packet.len = 0x84;
- CmdBlkP->Packet.data[0] = UFOAD;
- CmdBlkP->Packet.data[1] = KillUnit.Link;
- CmdBlkP->Packet.data[2] = UFOAD_MAGIC & 0xFF;
- CmdBlkP->Packet.data[3] = (UFOAD_MAGIC >> 8) & 0xFF;
-
- for (Host = 0; Host < p->RIONumHosts; Host++) {
- ID = 0;
- HostP = &p->RIOHosts[Host];
-
- if (HostP->UniqueNum == KillUnit.UniqueNum) {
- if (RIOQueueCmdBlk(HostP, RTAS_PER_HOST + KillUnit.Link, CmdBlkP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CMD, "UFOAD: Failed queue command\n");
- return -EIO;
- }
- return 0;
- }
-
- for (ID = 0; ID < RTAS_PER_HOST; ID++) {
- if (HostP->Mapping[ID].RtaUniqueNum == KillUnit.UniqueNum) {
- CmdBlkP->Packet.dest_unit = ID + 1;
- if (RIOQueueCmdBlk(HostP, ID, CmdBlkP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CMD, "UFOAD: Failed queue command\n");
- return -EIO;
- }
- return 0;
- }
- }
- }
- RIOFreeCmdBlk(CmdBlkP);
- return -ENXIO;
-}
-
-int RIOSuspendBootRta(struct Host *HostP, int ID, int Link)
-{
- struct CmdBlk *CmdBlkP;
-
- rio_dprintk(RIO_DEBUG_CMD, "SUSPEND BOOT ON RTA ID %d, link %c\n", ID, 'A' + Link);
-
- CmdBlkP = RIOGetCmdBlk();
-
- if (!CmdBlkP) {
- rio_dprintk(RIO_DEBUG_CMD, "SUSPEND BOOT ON RTA: GetCmdBlk failed\n");
- return -ENXIO;
- }
-
- CmdBlkP->Packet.dest_unit = ID;
- CmdBlkP->Packet.dest_port = BOOT_RUP;
- CmdBlkP->Packet.src_unit = 0;
- CmdBlkP->Packet.src_port = BOOT_RUP;
- CmdBlkP->Packet.len = 0x84;
- CmdBlkP->Packet.data[0] = IWAIT;
- CmdBlkP->Packet.data[1] = Link;
- CmdBlkP->Packet.data[2] = IWAIT_MAGIC & 0xFF;
- CmdBlkP->Packet.data[3] = (IWAIT_MAGIC >> 8) & 0xFF;
-
- if (RIOQueueCmdBlk(HostP, ID - 1, CmdBlkP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CMD, "SUSPEND BOOT ON RTA: Failed to queue iwait command\n");
- return -EIO;
- }
- return 0;
-}
-
-int RIOFoadWakeup(struct rio_info *p)
-{
- int port;
- struct Port *PortP;
- unsigned long flags;
-
- for (port = 0; port < RIO_PORTS; port++) {
- PortP = p->RIOPortp[port];
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->Config = 0;
- PortP->State = 0;
- PortP->InUse = NOT_INUSE;
- PortP->PortState = 0;
- PortP->FlushCmdBodge = 0;
- PortP->ModemLines = 0;
- PortP->ModemState = 0;
- PortP->CookMode = 0;
- PortP->ParamSem = 0;
- PortP->Mapped = 0;
- PortP->WflushFlag = 0;
- PortP->MagicFlags = 0;
- PortP->RxDataStart = 0;
- PortP->TxBufferIn = 0;
- PortP->TxBufferOut = 0;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- }
- return (0);
-}
-
-/*
-** Incoming command on the COMMAND_RUP to be processed.
-*/
-static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struct PKT __iomem *PacketP)
-{
- struct PktCmd __iomem *PktCmdP = (struct PktCmd __iomem *)PacketP->data;
- struct Port *PortP;
- struct UnixRup *UnixRupP;
- unsigned short SysPort;
- unsigned short ReportedModemStatus;
- unsigned short rup;
- unsigned short subCommand;
- unsigned long flags;
-
- func_enter();
-
- /*
- ** 16 port RTA note:
- ** Command rup packets coming from the RTA will have pkt->data[1] (which
- ** translates to PktCmdP->PhbNum) set to the host port number for the
- ** particular unit. To access the correct BaseSysPort for a 16 port RTA,
- ** we can use PhbNum to get the rup number for the appropriate 8 port
- ** block (for the first block, this should be equal to 'Rup').
- */
- rup = readb(&PktCmdP->PhbNum) / (unsigned short) PORTS_PER_RTA;
- UnixRupP = &HostP->UnixRups[rup];
- SysPort = UnixRupP->BaseSysPort + (readb(&PktCmdP->PhbNum) % (unsigned short) PORTS_PER_RTA);
- rio_dprintk(RIO_DEBUG_CMD, "Command on rup %d, port %d\n", rup, SysPort);
-
- if (UnixRupP->BaseSysPort == NO_PORT) {
- rio_dprintk(RIO_DEBUG_CMD, "OBSCURE ERROR!\n");
- rio_dprintk(RIO_DEBUG_CMD, "Diagnostics follow. Please WRITE THESE DOWN and report them to Specialix Technical Support\n");
- rio_dprintk(RIO_DEBUG_CMD, "CONTROL information: Host number %Zd, name ``%s''\n", HostP - p->RIOHosts, HostP->Name);
- rio_dprintk(RIO_DEBUG_CMD, "CONTROL information: Rup number 0x%x\n", rup);
-
- if (Rup < (unsigned short) MAX_RUP) {
- rio_dprintk(RIO_DEBUG_CMD, "CONTROL information: This is the RUP for RTA ``%s''\n", HostP->Mapping[Rup].Name);
- } else
- rio_dprintk(RIO_DEBUG_CMD, "CONTROL information: This is the RUP for link ``%c'' of host ``%s''\n", ('A' + Rup - MAX_RUP), HostP->Name);
-
- rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Destination 0x%x:0x%x\n", readb(&PacketP->dest_unit), readb(&PacketP->dest_port));
- rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Source 0x%x:0x%x\n", readb(&PacketP->src_unit), readb(&PacketP->src_port));
- rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Length 0x%x (%d)\n", readb(&PacketP->len), readb(&PacketP->len));
- rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Control 0x%x (%d)\n", readb(&PacketP->control), readb(&PacketP->control));
- rio_dprintk(RIO_DEBUG_CMD, "PACKET information: Check 0x%x (%d)\n", readw(&PacketP->csum), readw(&PacketP->csum));
- rio_dprintk(RIO_DEBUG_CMD, "COMMAND information: Host Port Number 0x%x, " "Command Code 0x%x\n", readb(&PktCmdP->PhbNum), readb(&PktCmdP->Command));
- return 1;
- }
- PortP = p->RIOPortp[SysPort];
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- switch (readb(&PktCmdP->Command)) {
- case RIOC_BREAK_RECEIVED:
- rio_dprintk(RIO_DEBUG_CMD, "Received a break!\n");
- /* If the current line disc. is not multi-threading and
- the current processor is not the default, reset rup_intr
- and return 0 to ensure that the command packet is
- not freed. */
- /* Call tmgr HANGUP HERE */
- /* Fix this later when every thing works !!!! RAMRAJ */
- gs_got_break(&PortP->gs);
- break;
-
- case RIOC_COMPLETE:
- rio_dprintk(RIO_DEBUG_CMD, "Command complete on phb %d host %Zd\n", readb(&PktCmdP->PhbNum), HostP - p->RIOHosts);
- subCommand = 1;
- switch (readb(&PktCmdP->SubCommand)) {
- case RIOC_MEMDUMP:
- rio_dprintk(RIO_DEBUG_CMD, "Memory dump cmd (0x%x) from addr 0x%x\n", readb(&PktCmdP->SubCommand), readw(&PktCmdP->SubAddr));
- break;
- case RIOC_READ_REGISTER:
- rio_dprintk(RIO_DEBUG_CMD, "Read register (0x%x)\n", readw(&PktCmdP->SubAddr));
- p->CdRegister = (readb(&PktCmdP->ModemStatus) & RIOC_MSVR1_HOST);
- break;
- default:
- subCommand = 0;
- break;
- }
- if (subCommand)
- break;
- rio_dprintk(RIO_DEBUG_CMD, "New status is 0x%x was 0x%x\n", readb(&PktCmdP->PortStatus), PortP->PortState);
- if (PortP->PortState != readb(&PktCmdP->PortStatus)) {
- rio_dprintk(RIO_DEBUG_CMD, "Mark status & wakeup\n");
- PortP->PortState = readb(&PktCmdP->PortStatus);
- /* What should we do here ...
- wakeup( &PortP->PortState );
- */
- } else
- rio_dprintk(RIO_DEBUG_CMD, "No change\n");
-
- /* FALLTHROUGH */
- case RIOC_MODEM_STATUS:
- /*
- ** Knock out the tbusy and tstop bits, as these are not relevant
- ** to the check for modem status change (they're just there because
- ** it's a convenient place to put them!).
- */
- ReportedModemStatus = readb(&PktCmdP->ModemStatus);
- if ((PortP->ModemState & RIOC_MSVR1_HOST) ==
- (ReportedModemStatus & RIOC_MSVR1_HOST)) {
- rio_dprintk(RIO_DEBUG_CMD, "Modem status unchanged 0x%x\n", PortP->ModemState);
- /*
- ** Update ModemState just in case tbusy or tstop states have
- ** changed.
- */
- PortP->ModemState = ReportedModemStatus;
- } else {
- rio_dprintk(RIO_DEBUG_CMD, "Modem status change from 0x%x to 0x%x\n", PortP->ModemState, ReportedModemStatus);
- PortP->ModemState = ReportedModemStatus;
-#ifdef MODEM_SUPPORT
- if (PortP->Mapped) {
- /***********************************************************\
- *************************************************************
- *** ***
- *** M O D E M S T A T E C H A N G E ***
- *** ***
- *************************************************************
- \***********************************************************/
- /*
- ** If the device is a modem, then check the modem
- ** carrier.
- */
- if (PortP->gs.port.tty == NULL)
- break;
- if (PortP->gs.port.tty->termios == NULL)
- break;
-
- if (!(PortP->gs.port.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
-
- rio_dprintk(RIO_DEBUG_CMD, "Is there a Carrier?\n");
- /*
- ** Is there a carrier?
- */
- if (PortP->ModemState & RIOC_MSVR1_CD) {
- /*
- ** Has carrier just appeared?
- */
- if (!(PortP->State & RIO_CARR_ON)) {
- rio_dprintk(RIO_DEBUG_CMD, "Carrier just came up.\n");
- PortP->State |= RIO_CARR_ON;
- /*
- ** wakeup anyone in WOPEN
- */
- if (PortP->State & (PORT_ISOPEN | RIO_WOPEN))
- wake_up_interruptible(&PortP->gs.port.open_wait);
- }
- } else {
- /*
- ** Has carrier just dropped?
- */
- if (PortP->State & RIO_CARR_ON) {
- if (PortP->State & (PORT_ISOPEN | RIO_WOPEN | RIO_MOPEN))
- tty_hangup(PortP->gs.port.tty);
- PortP->State &= ~RIO_CARR_ON;
- rio_dprintk(RIO_DEBUG_CMD, "Carrirer just went down\n");
- }
- }
- }
- }
-#endif
- }
- break;
-
- default:
- rio_dprintk(RIO_DEBUG_CMD, "Unknown command %d on CMD_RUP of host %Zd\n", readb(&PktCmdP->Command), HostP - p->RIOHosts);
- break;
- }
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-
- func_exit();
-
- return 1;
-}
-
-/*
-** The command mechanism:
-** Each rup has a chain of commands associated with it.
-** This chain is maintained by routines in this file.
-** Periodically we are called and we run a quick check of all the
-** active chains to determine if there is a command to be executed,
-** and if the rup is ready to accept it.
-**
-*/
-
-/*
-** Allocate an empty command block.
-*/
-struct CmdBlk *RIOGetCmdBlk(void)
-{
- struct CmdBlk *CmdBlkP;
-
- CmdBlkP = kzalloc(sizeof(struct CmdBlk), GFP_ATOMIC);
- return CmdBlkP;
-}
-
-/*
-** Return a block to the head of the free list.
-*/
-void RIOFreeCmdBlk(struct CmdBlk *CmdBlkP)
-{
- kfree(CmdBlkP);
-}
-
-/*
-** attach a command block to the list of commands to be performed for
-** a given rup.
-*/
-int RIOQueueCmdBlk(struct Host *HostP, uint Rup, struct CmdBlk *CmdBlkP)
-{
- struct CmdBlk **Base;
- struct UnixRup *UnixRupP;
- unsigned long flags;
-
- if (Rup >= (unsigned short) (MAX_RUP + LINKS_PER_UNIT)) {
- rio_dprintk(RIO_DEBUG_CMD, "Illegal rup number %d in RIOQueueCmdBlk\n", Rup);
- RIOFreeCmdBlk(CmdBlkP);
- return RIO_FAIL;
- }
-
- UnixRupP = &HostP->UnixRups[Rup];
-
- rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
-
- /*
- ** If the RUP is currently inactive, then put the request
- ** straight on the RUP....
- */
- if ((UnixRupP->CmdsWaitingP == NULL) && (UnixRupP->CmdPendingP == NULL) && (readw(&UnixRupP->RupP->txcontrol) == TX_RUP_INACTIVE) && (CmdBlkP->PreFuncP ? (*CmdBlkP->PreFuncP) (CmdBlkP->PreArg, CmdBlkP)
- : 1)) {
- rio_dprintk(RIO_DEBUG_CMD, "RUP inactive-placing command straight on. Cmd byte is 0x%x\n", CmdBlkP->Packet.data[0]);
-
- /*
- ** Whammy! blat that pack!
- */
- HostP->Copy(&CmdBlkP->Packet, RIO_PTR(HostP->Caddr, readw(&UnixRupP->RupP->txpkt)), sizeof(struct PKT));
-
- /*
- ** place command packet on the pending position.
- */
- UnixRupP->CmdPendingP = CmdBlkP;
-
- /*
- ** set the command register
- */
- writew(TX_PACKET_READY, &UnixRupP->RupP->txcontrol);
-
- rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
-
- return 0;
- }
- rio_dprintk(RIO_DEBUG_CMD, "RUP active - en-queing\n");
-
- if (UnixRupP->CmdsWaitingP != NULL)
- rio_dprintk(RIO_DEBUG_CMD, "Rup active - command waiting\n");
- if (UnixRupP->CmdPendingP != NULL)
- rio_dprintk(RIO_DEBUG_CMD, "Rup active - command pending\n");
- if (readw(&UnixRupP->RupP->txcontrol) != TX_RUP_INACTIVE)
- rio_dprintk(RIO_DEBUG_CMD, "Rup active - command rup not ready\n");
-
- Base = &UnixRupP->CmdsWaitingP;
-
- rio_dprintk(RIO_DEBUG_CMD, "First try to queue cmdblk %p at %p\n", CmdBlkP, Base);
-
- while (*Base) {
- rio_dprintk(RIO_DEBUG_CMD, "Command cmdblk %p here\n", *Base);
- Base = &((*Base)->NextP);
- rio_dprintk(RIO_DEBUG_CMD, "Now try to queue cmd cmdblk %p at %p\n", CmdBlkP, Base);
- }
-
- rio_dprintk(RIO_DEBUG_CMD, "Will queue cmdblk %p at %p\n", CmdBlkP, Base);
-
- *Base = CmdBlkP;
-
- CmdBlkP->NextP = NULL;
-
- rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
-
- return 0;
-}
-
-/*
-** Here we go - if there is an empty rup, fill it!
-** must be called at splrio() or higher.
-*/
-void RIOPollHostCommands(struct rio_info *p, struct Host *HostP)
-{
- struct CmdBlk *CmdBlkP;
- struct UnixRup *UnixRupP;
- struct PKT __iomem *PacketP;
- unsigned short Rup;
- unsigned long flags;
-
-
- Rup = MAX_RUP + LINKS_PER_UNIT;
-
- do { /* do this loop for each RUP */
- /*
- ** locate the rup we are processing & lock it
- */
- UnixRupP = &HostP->UnixRups[--Rup];
-
- spin_lock_irqsave(&UnixRupP->RupLock, flags);
-
- /*
- ** First check for incoming commands:
- */
- if (readw(&UnixRupP->RupP->rxcontrol) != RX_RUP_INACTIVE) {
- int FreeMe;
-
- PacketP = (struct PKT __iomem *) RIO_PTR(HostP->Caddr, readw(&UnixRupP->RupP->rxpkt));
-
- switch (readb(&PacketP->dest_port)) {
- case BOOT_RUP:
- rio_dprintk(RIO_DEBUG_CMD, "Incoming Boot %s packet '%x'\n", readb(&PacketP->len) & 0x80 ? "Command" : "Data", readb(&PacketP->data[0]));
- rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
- FreeMe = RIOBootRup(p, Rup, HostP, PacketP);
- rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
- break;
-
- case COMMAND_RUP:
- /*
- ** Free the RUP lock as loss of carrier causes a
- ** ttyflush which will (eventually) call another
- ** routine that uses the RUP lock.
- */
- rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
- FreeMe = RIOCommandRup(p, Rup, HostP, PacketP);
- if (readb(&PacketP->data[5]) == RIOC_MEMDUMP) {
- rio_dprintk(RIO_DEBUG_CMD, "Memdump from 0x%x complete\n", readw(&(PacketP->data[6])));
- rio_memcpy_fromio(p->RIOMemDump, &(PacketP->data[8]), 32);
- }
- rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
- break;
-
- case ROUTE_RUP:
- rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
- FreeMe = RIORouteRup(p, Rup, HostP, PacketP);
- rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
- break;
-
- default:
- rio_dprintk(RIO_DEBUG_CMD, "Unknown RUP %d\n", readb(&PacketP->dest_port));
- FreeMe = 1;
- break;
- }
-
- if (FreeMe) {
- rio_dprintk(RIO_DEBUG_CMD, "Free processed incoming command packet\n");
- put_free_end(HostP, PacketP);
-
- writew(RX_RUP_INACTIVE, &UnixRupP->RupP->rxcontrol);
-
- if (readw(&UnixRupP->RupP->handshake) == PHB_HANDSHAKE_SET) {
- rio_dprintk(RIO_DEBUG_CMD, "Handshake rup %d\n", Rup);
- writew(PHB_HANDSHAKE_SET | PHB_HANDSHAKE_RESET, &UnixRupP->RupP->handshake);
- }
- }
- }
-
- /*
- ** IF a command was running on the port,
- ** and it has completed, then tidy it up.
- */
- if ((CmdBlkP = UnixRupP->CmdPendingP) && /* ASSIGN! */
- (readw(&UnixRupP->RupP->txcontrol) == TX_RUP_INACTIVE)) {
- /*
- ** we are idle.
- ** there is a command in pending.
- ** Therefore, this command has finished.
- ** So, wakeup whoever is waiting for it (and tell them
- ** what happened).
- */
- if (CmdBlkP->Packet.dest_port == BOOT_RUP)
- rio_dprintk(RIO_DEBUG_CMD, "Free Boot %s Command Block '%x'\n", CmdBlkP->Packet.len & 0x80 ? "Command" : "Data", CmdBlkP->Packet.data[0]);
-
- rio_dprintk(RIO_DEBUG_CMD, "Command %p completed\n", CmdBlkP);
-
- /*
- ** Clear the Rup lock to prevent mutual exclusion.
- */
- if (CmdBlkP->PostFuncP) {
- rio_spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
- (*CmdBlkP->PostFuncP) (CmdBlkP->PostArg, CmdBlkP);
- rio_spin_lock_irqsave(&UnixRupP->RupLock, flags);
- }
-
- /*
- ** ....clear the pending flag....
- */
- UnixRupP->CmdPendingP = NULL;
-
- /*
- ** ....and return the command block to the freelist.
- */
- RIOFreeCmdBlk(CmdBlkP);
- }
-
- /*
- ** If there is a command for this rup, and the rup
- ** is idle, then process the command
- */
- if ((CmdBlkP = UnixRupP->CmdsWaitingP) && /* ASSIGN! */
- (UnixRupP->CmdPendingP == NULL) && (readw(&UnixRupP->RupP->txcontrol) == TX_RUP_INACTIVE)) {
- /*
- ** if the pre-function is non-zero, call it.
- ** If it returns RIO_FAIL then don't
- ** send this command yet!
- */
- if (!(CmdBlkP->PreFuncP ? (*CmdBlkP->PreFuncP) (CmdBlkP->PreArg, CmdBlkP) : 1)) {
- rio_dprintk(RIO_DEBUG_CMD, "Not ready to start command %p\n", CmdBlkP);
- } else {
- rio_dprintk(RIO_DEBUG_CMD, "Start new command %p Cmd byte is 0x%x\n", CmdBlkP, CmdBlkP->Packet.data[0]);
- /*
- ** Whammy! blat that pack!
- */
- HostP->Copy(&CmdBlkP->Packet, RIO_PTR(HostP->Caddr, readw(&UnixRupP->RupP->txpkt)), sizeof(struct PKT));
-
- /*
- ** remove the command from the rup command queue...
- */
- UnixRupP->CmdsWaitingP = CmdBlkP->NextP;
-
- /*
- ** ...and place it on the pending position.
- */
- UnixRupP->CmdPendingP = CmdBlkP;
-
- /*
- ** set the command register
- */
- writew(TX_PACKET_READY, &UnixRupP->RupP->txcontrol);
-
- /*
- ** the command block will be freed
- ** when the command has been processed.
- */
- }
- }
- spin_unlock_irqrestore(&UnixRupP->RupLock, flags);
- } while (Rup);
-}
-
-int RIOWFlushMark(unsigned long iPortP, struct CmdBlk *CmdBlkP)
-{
- struct Port *PortP = (struct Port *) iPortP;
- unsigned long flags;
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->WflushFlag++;
- PortP->MagicFlags |= MAGIC_FLUSH;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return RIOUnUse(iPortP, CmdBlkP);
-}
-
-int RIORFlushEnable(unsigned long iPortP, struct CmdBlk *CmdBlkP)
-{
- struct Port *PortP = (struct Port *) iPortP;
- struct PKT __iomem *PacketP;
- unsigned long flags;
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- while (can_remove_receive(&PacketP, PortP)) {
- remove_receive(PortP);
- put_free_end(PortP->HostP, PacketP);
- }
-
- if (readw(&PortP->PhbP->handshake) == PHB_HANDSHAKE_SET) {
- /*
- ** MAGIC! (Basically, handshake the RX buffer, so that
- ** the RTAs upstream can be re-enabled.)
- */
- rio_dprintk(RIO_DEBUG_CMD, "Util: Set RX handshake bit\n");
- writew(PHB_HANDSHAKE_SET | PHB_HANDSHAKE_RESET, &PortP->PhbP->handshake);
- }
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return RIOUnUse(iPortP, CmdBlkP);
-}
-
-int RIOUnUse(unsigned long iPortP, struct CmdBlk *CmdBlkP)
-{
- struct Port *PortP = (struct Port *) iPortP;
- unsigned long flags;
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- rio_dprintk(RIO_DEBUG_CMD, "Decrement in use count for port\n");
-
- if (PortP->InUse) {
- if (--PortP->InUse != NOT_INUSE) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return 0;
- }
- }
- /*
- ** While PortP->InUse is set (i.e. a preemptive command has been sent to
- ** the RTA and is awaiting completion), any transmit data is prevented from
- ** being transferred from the write queue into the transmit packets
- ** (add_transmit) and no furthur transmit interrupt will be sent for that
- ** data. The next interrupt will occur up to 500ms later (RIOIntr is called
- ** twice a second as a saftey measure). This was the case when kermit was
- ** used to send data into a RIO port. After each packet was sent, TCFLSH
- ** was called to flush the read queue preemptively. PortP->InUse was
- ** incremented, thereby blocking the 6 byte acknowledgement packet
- ** transmitted back. This acknowledgment hung around for 500ms before
- ** being sent, thus reducing input performance substantially!.
- ** When PortP->InUse becomes NOT_INUSE, we must ensure that any data
- ** hanging around in the transmit buffer is sent immediately.
- */
- writew(1, &PortP->HostP->ParmMapP->tx_intr);
- /* What to do here ..
- wakeup( (caddr_t)&(PortP->InUse) );
- */
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return 0;
-}
-
-/*
-**
-** How to use this file:
-**
-** To send a command down a rup, you need to allocate a command block, fill
-** in the packet information, fill in the command number, fill in the pre-
-** and post- functions and arguments, and then add the command block to the
-** queue of command blocks for the port in question. When the port is idle,
-** then the pre-function will be called. If this returns RIO_FAIL then the
-** command will be re-queued and tried again at a later date (probably in one
-** clock tick). If the pre-function returns NOT RIO_FAIL, then the command
-** packet will be queued on the RUP, and the txcontrol field set to the
-** command number. When the txcontrol field has changed from being the
-** command number, then the post-function will be called, with the argument
-** specified earlier, a pointer to the command block, and the value of
-** txcontrol.
-**
-** To allocate a command block, call RIOGetCmdBlk(). This returns a pointer
-** to the command block structure allocated, or NULL if there aren't any.
-** The block will have been zeroed for you.
-**
-** The structure has the following fields:
-**
-** struct CmdBlk
-** {
-** struct CmdBlk *NextP; ** Pointer to next command block **
-** struct PKT Packet; ** A packet, to copy to the rup **
-** int (*PreFuncP)(); ** The func to call to check if OK **
-** int PreArg; ** The arg for the func **
-** int (*PostFuncP)(); ** The func to call when completed **
-** int PostArg; ** The arg for the func **
-** };
-**
-** You need to fill in ALL fields EXCEPT NextP, which is used to link the
-** blocks together either on the free list or on the Rup list.
-**
-** Packet is an actual packet structure to be filled in with the packet
-** information associated with the command. You need to fill in everything,
-** as the command processor doesn't process the command packet in any way.
-**
-** The PreFuncP is called before the packet is enqueued on the host rup.
-** PreFuncP is called as (*PreFuncP)(PreArg, CmdBlkP);. PreFuncP must
-** return !RIO_FAIL to have the packet queued on the rup, and RIO_FAIL
-** if the packet is NOT to be queued.
-**
-** The PostFuncP is called when the command has completed. It is called
-** as (*PostFuncP)(PostArg, CmdBlkP, txcontrol);. PostFuncP is not expected
-** to return a value. PostFuncP does NOT need to free the command block,
-** as this happens automatically after PostFuncP returns.
-**
-** Once the command block has been filled in, it is attached to the correct
-** queue by calling RIOQueueCmdBlk( HostP, Rup, CmdBlkP ) where HostP is
-** a pointer to the struct Host, Rup is the NUMBER of the rup (NOT a pointer
-** to it!), and CmdBlkP is the pointer to the command block allocated using
-** RIOGetCmdBlk().
-**
-*/
diff --git a/drivers/char/rio/rioctrl.c b/drivers/char/rio/rioctrl.c
deleted file mode 100644
index 780506326a7..00000000000
--- a/drivers/char/rio/rioctrl.c
+++ /dev/null
@@ -1,1504 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioctrl.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:42
-** Retrieved : 11/6/98 10:33:49
-**
-** ident @(#)rioctrl.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-
-
-static struct LpbReq LpbReq;
-static struct RupReq RupReq;
-static struct PortReq PortReq;
-static struct HostReq HostReq; /* oh really? global? and no locking? */
-static struct HostDpRam HostDpRam;
-static struct DebugCtrl DebugCtrl;
-static struct Map MapEnt;
-static struct PortSetup PortSetup;
-static struct DownLoad DownLoad;
-static struct SendPack SendPack;
-/* static struct StreamInfo StreamInfo; */
-/* static char modemtable[RIO_PORTS]; */
-static struct SpecialRupCmd SpecialRupCmd;
-static struct PortParams PortParams;
-static struct portStats portStats;
-
-static struct SubCmdStruct {
- ushort Host;
- ushort Rup;
- ushort Port;
- ushort Addr;
-} SubCmd;
-
-struct PortTty {
- uint port;
- struct ttystatics Tty;
-};
-
-static struct PortTty PortTty;
-typedef struct ttystatics TERMIO;
-
-/*
-** This table is used when the config.rio downloads bin code to the
-** driver. We index the table using the product code, 0-F, and call
-** the function pointed to by the entry, passing the information
-** about the boot.
-** The RIOBootCodeUNKNOWN entry is there to politely tell the calling
-** process to bog off.
-*/
-static int
- (*RIOBootTable[MAX_PRODUCT]) (struct rio_info *, struct DownLoad *) = {
- /* 0 */ RIOBootCodeHOST,
- /* Host Card */
- /* 1 */ RIOBootCodeRTA,
- /* RTA */
-};
-
-#define drv_makedev(maj, min) ((((uint) maj & 0xff) << 8) | ((uint) min & 0xff))
-
-static int copy_from_io(void __user *to, void __iomem *from, size_t size)
-{
- void *buf = kmalloc(size, GFP_KERNEL);
- int res = -ENOMEM;
- if (buf) {
- rio_memcpy_fromio(buf, from, size);
- res = copy_to_user(to, buf, size);
- kfree(buf);
- }
- return res;
-}
-
-int riocontrol(struct rio_info *p, dev_t dev, int cmd, unsigned long arg, int su)
-{
- uint Host; /* leave me unsigned! */
- uint port; /* and me! */
- struct Host *HostP;
- ushort loop;
- int Entry;
- struct Port *PortP;
- struct PKT __iomem *PacketP;
- int retval = 0;
- unsigned long flags;
- void __user *argp = (void __user *)arg;
-
- func_enter();
-
- /* Confuse the compiler to think that we've initialized these */
- Host = 0;
- PortP = NULL;
-
- rio_dprintk(RIO_DEBUG_CTRL, "control ioctl cmd: 0x%x arg: %p\n", cmd, argp);
-
- switch (cmd) {
- /*
- ** RIO_SET_TIMER
- **
- ** Change the value of the host card interrupt timer.
- ** If the host card number is -1 then all host cards are changed
- ** otherwise just the specified host card will be changed.
- */
- case RIO_SET_TIMER:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_TIMER to %ldms\n", arg);
- {
- int host, value;
- host = (arg >> 16) & 0x0000FFFF;
- value = arg & 0x0000ffff;
- if (host == -1) {
- for (host = 0; host < p->RIONumHosts; host++) {
- if (p->RIOHosts[host].Flags == RC_RUNNING) {
- writew(value, &p->RIOHosts[host].ParmMapP->timer);
- }
- }
- } else if (host >= p->RIONumHosts) {
- return -EINVAL;
- } else {
- if (p->RIOHosts[host].Flags == RC_RUNNING) {
- writew(value, &p->RIOHosts[host].ParmMapP->timer);
- }
- }
- }
- return 0;
-
- case RIO_FOAD_RTA:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_FOAD_RTA\n");
- return RIOCommandRta(p, arg, RIOFoadRta);
-
- case RIO_ZOMBIE_RTA:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_ZOMBIE_RTA\n");
- return RIOCommandRta(p, arg, RIOZombieRta);
-
- case RIO_IDENTIFY_RTA:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_IDENTIFY_RTA\n");
- return RIOIdentifyRta(p, argp);
-
- case RIO_KILL_NEIGHBOUR:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_KILL_NEIGHBOUR\n");
- return RIOKillNeighbour(p, argp);
-
- case SPECIAL_RUP_CMD:
- {
- struct CmdBlk *CmdBlkP;
-
- rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD\n");
- if (copy_from_user(&SpecialRupCmd, argp, sizeof(SpecialRupCmd))) {
- rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD copy failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- CmdBlkP = RIOGetCmdBlk();
- if (!CmdBlkP) {
- rio_dprintk(RIO_DEBUG_CTRL, "SPECIAL_RUP_CMD GetCmdBlk failed\n");
- return -ENXIO;
- }
- CmdBlkP->Packet = SpecialRupCmd.Packet;
- if (SpecialRupCmd.Host >= p->RIONumHosts)
- SpecialRupCmd.Host = 0;
- rio_dprintk(RIO_DEBUG_CTRL, "Queue special rup command for host %d rup %d\n", SpecialRupCmd.Host, SpecialRupCmd.RupNum);
- if (RIOQueueCmdBlk(&p->RIOHosts[SpecialRupCmd.Host], SpecialRupCmd.RupNum, CmdBlkP) == RIO_FAIL) {
- printk(KERN_WARNING "rio: FAILED TO QUEUE SPECIAL RUP COMMAND\n");
- }
- return 0;
- }
-
- case RIO_DEBUG_MEM:
- return -EPERM;
-
- case RIO_ALL_MODEM:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_ALL_MODEM\n");
- p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
- return -EINVAL;
-
- case RIO_GET_TABLE:
- /*
- ** Read the routing table from the device driver to user space
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE\n");
-
- if ((retval = RIOApel(p)) != 0)
- return retval;
-
- if (copy_to_user(argp, p->RIOConnectTable, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_TABLE copy failed\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
-
- {
- int entry;
- rio_dprintk(RIO_DEBUG_CTRL, "*****\nMAP ENTRIES\n");
- for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
- if ((p->RIOConnectTable[entry].ID == 0) && (p->RIOConnectTable[entry].HostUniqueNum == 0) && (p->RIOConnectTable[entry].RtaUniqueNum == 0))
- continue;
-
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Flags = 0x%x\n", entry, (int) p->RIOConnectTable[entry].Flags);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.SysPort = 0x%x\n", entry, (int) p->RIOConnectTable[entry].SysPort);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[0].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Unit);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[0].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[0].Link);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[1].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Unit);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[1].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[1].Link);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[2].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Unit);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[2].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[2].Link);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[3].Unit = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Unit);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Top[4].Link = %x\n", entry, p->RIOConnectTable[entry].Topology[3].Link);
- rio_dprintk(RIO_DEBUG_CTRL, "Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name);
- }
- rio_dprintk(RIO_DEBUG_CTRL, "*****\nEND MAP ENTRIES\n");
- }
- p->RIOQuickCheck = NOT_CHANGED; /* a table has been gotten */
- return 0;
-
- case RIO_PUT_TABLE:
- /*
- ** Write the routing table to the device driver from user space
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE\n");
-
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&p->RIOConnectTable[0], argp, TOTAL_MAP_ENTRIES * sizeof(struct Map))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_TABLE copy failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
-/*
-***********************************
- {
- int entry;
- rio_dprint(RIO_DEBUG_CTRL, ("*****\nMAP ENTRIES\n") );
- for ( entry=0; entry<TOTAL_MAP_ENTRIES; entry++ )
- {
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.HostUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].HostUniqueNum ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.RtaUniqueNum = 0x%x\n", entry, p->RIOConnectTable[entry].RtaUniqueNum ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.ID = 0x%x\n", entry, p->RIOConnectTable[entry].ID ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.ID2 = 0x%x\n", entry, p->RIOConnectTable[entry].ID2 ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Flags = 0x%x\n", entry, p->RIOConnectTable[entry].Flags ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.SysPort = 0x%x\n", entry, p->RIOConnectTable[entry].SysPort ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[0].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Unit ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[0].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[0].Link ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[1].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Unit ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[1].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[1].Link ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[2].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Unit ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[2].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[2].Link ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[3].Unit = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Unit ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Top[4].Link = %b\n", entry, p->RIOConnectTable[entry].Topology[3].Link ) );
- rio_dprint(RIO_DEBUG_CTRL, ("Map entry %d.Name = %s\n", entry, p->RIOConnectTable[entry].Name ) );
- }
- rio_dprint(RIO_DEBUG_CTRL, ("*****\nEND MAP ENTRIES\n") );
- }
-***********************************
-*/
- return RIONewTable(p);
-
- case RIO_GET_BINDINGS:
- /*
- ** Send bindings table, containing unique numbers of RTAs owned
- ** by this system to user space
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS\n");
-
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_to_user(argp, p->RIOBindTab, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_BINDINGS copy failed\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return 0;
-
- case RIO_PUT_BINDINGS:
- /*
- ** Receive a bindings table, containing unique numbers of RTAs owned
- ** by this system
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS\n");
-
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&p->RIOBindTab[0], argp, (sizeof(ulong) * MAX_RTA_BINDINGS))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PUT_BINDINGS copy failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- return 0;
-
- case RIO_BIND_RTA:
- {
- int EmptySlot = -1;
- /*
- ** Bind this RTA to host, so that it will be booted by
- ** host in 'boot owned RTAs' mode.
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_BIND_RTA\n");
-
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_BIND_RTA !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- for (Entry = 0; Entry < MAX_RTA_BINDINGS; Entry++) {
- if ((EmptySlot == -1) && (p->RIOBindTab[Entry] == 0L))
- EmptySlot = Entry;
- else if (p->RIOBindTab[Entry] == arg) {
- /*
- ** Already exists - delete
- */
- p->RIOBindTab[Entry] = 0L;
- rio_dprintk(RIO_DEBUG_CTRL, "Removing Rta %ld from p->RIOBindTab\n", arg);
- return 0;
- }
- }
- /*
- ** Dosen't exist - add
- */
- if (EmptySlot != -1) {
- p->RIOBindTab[EmptySlot] = arg;
- rio_dprintk(RIO_DEBUG_CTRL, "Adding Rta %lx to p->RIOBindTab\n", arg);
- } else {
- rio_dprintk(RIO_DEBUG_CTRL, "p->RIOBindTab full! - Rta %lx not added\n", arg);
- return -ENOMEM;
- }
- return 0;
- }
-
- case RIO_RESUME:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME\n");
- port = arg;
- if ((port < 0) || (port > 511)) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Bad port number %d\n", port);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- PortP = p->RIOPortp[port];
- if (!PortP->Mapped) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not mapped\n", port);
- p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
- return -EINVAL;
- }
- if (!(PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d not open\n", port);
- return -EINVAL;
- }
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- if (RIOPreemptiveCmd(p, (p->RIOPortp[port]), RIOC_RESUME) ==
- RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME failed\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return -EBUSY;
- } else {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESUME: Port %d resumed\n", port);
- PortP->State |= RIO_BUSY;
- }
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_ASSIGN_RTA:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_ASSIGN_RTA\n");
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_ASSIGN_RTA !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
- rio_dprintk(RIO_DEBUG_CTRL, "Copy from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- return RIOAssignRta(p, &MapEnt);
-
- case RIO_CHANGE_NAME:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_CHANGE_NAME\n");
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_CHANGE_NAME !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
- rio_dprintk(RIO_DEBUG_CTRL, "Copy from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- return RIOChangeName(p, &MapEnt);
-
- case RIO_DELETE_RTA:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_DELETE_RTA\n");
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_DELETE_RTA !Root\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&MapEnt, argp, sizeof(MapEnt))) {
- rio_dprintk(RIO_DEBUG_CTRL, "Copy from data space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- return RIODeleteRta(p, &MapEnt);
-
- case RIO_QUICK_CHECK:
- if (copy_to_user(argp, &p->RIORtaDisCons, sizeof(unsigned int))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return 0;
-
- case RIO_LAST_ERROR:
- if (copy_to_user(argp, &p->RIOError, sizeof(struct Error)))
- return -EFAULT;
- return 0;
-
- case RIO_GET_LOG:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_LOG\n");
- return -EINVAL;
-
- case RIO_GET_MODTYPE:
- if (copy_from_user(&port, argp, sizeof(unsigned int))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Get module type for port %d\n", port);
- if (port < 0 || port > 511) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_MODTYPE: Bad port number %d\n", port);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- PortP = (p->RIOPortp[port]);
- if (!PortP->Mapped) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_MODTYPE: Port %d not mapped\n", port);
- p->RIOError.Error = PORT_NOT_MAPPED_INTO_SYSTEM;
- return -EINVAL;
- }
- /*
- ** Return module type of port
- */
- port = PortP->HostP->UnixRups[PortP->RupNum].ModTypes;
- if (copy_to_user(argp, &port, sizeof(unsigned int))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return (0);
- case RIO_BLOCK_OPENS:
- rio_dprintk(RIO_DEBUG_CTRL, "Opens block until booted\n");
- for (Entry = 0; Entry < RIO_PORTS; Entry++) {
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- p->RIOPortp[Entry]->WaitUntilBooted = 1;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- }
- return 0;
-
- case RIO_SETUP_PORTS:
- rio_dprintk(RIO_DEBUG_CTRL, "Setup ports\n");
- if (copy_from_user(&PortSetup, argp, sizeof(PortSetup))) {
- p->RIOError.Error = COPYIN_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "EFAULT");
- return -EFAULT;
- }
- if (PortSetup.From > PortSetup.To || PortSetup.To >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- rio_dprintk(RIO_DEBUG_CTRL, "ENXIO");
- return -ENXIO;
- }
- if (PortSetup.XpCps > p->RIOConf.MaxXpCps || PortSetup.XpCps < p->RIOConf.MinXpCps) {
- p->RIOError.Error = XPRINT_CPS_OUT_OF_RANGE;
- rio_dprintk(RIO_DEBUG_CTRL, "EINVAL");
- return -EINVAL;
- }
- if (!p->RIOPortp) {
- printk(KERN_ERR "rio: No p->RIOPortp array!\n");
- rio_dprintk(RIO_DEBUG_CTRL, "No p->RIOPortp array!\n");
- return -EIO;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "entering loop (%d %d)!\n", PortSetup.From, PortSetup.To);
- for (loop = PortSetup.From; loop <= PortSetup.To; loop++) {
- rio_dprintk(RIO_DEBUG_CTRL, "in loop (%d)!\n", loop);
- }
- rio_dprintk(RIO_DEBUG_CTRL, "after loop (%d)!\n", loop);
- rio_dprintk(RIO_DEBUG_CTRL, "Retval:%x\n", retval);
- return retval;
-
- case RIO_GET_PORT_SETUP:
- rio_dprintk(RIO_DEBUG_CTRL, "Get port setup\n");
- if (copy_from_user(&PortSetup, argp, sizeof(PortSetup))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (PortSetup.From >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
-
- port = PortSetup.To = PortSetup.From;
- PortSetup.IxAny = (p->RIOPortp[port]->Config & RIO_IXANY) ? 1 : 0;
- PortSetup.IxOn = (p->RIOPortp[port]->Config & RIO_IXON) ? 1 : 0;
- PortSetup.Drain = (p->RIOPortp[port]->Config & RIO_WAITDRAIN) ? 1 : 0;
- PortSetup.Store = p->RIOPortp[port]->Store;
- PortSetup.Lock = p->RIOPortp[port]->Lock;
- PortSetup.XpCps = p->RIOPortp[port]->Xprint.XpCps;
- memcpy(PortSetup.XpOn, p->RIOPortp[port]->Xprint.XpOn, MAX_XP_CTRL_LEN);
- memcpy(PortSetup.XpOff, p->RIOPortp[port]->Xprint.XpOff, MAX_XP_CTRL_LEN);
- PortSetup.XpOn[MAX_XP_CTRL_LEN - 1] = '\0';
- PortSetup.XpOff[MAX_XP_CTRL_LEN - 1] = '\0';
-
- if (copy_to_user(argp, &PortSetup, sizeof(PortSetup))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_GET_PORT_PARAMS:
- rio_dprintk(RIO_DEBUG_CTRL, "Get port params\n");
- if (copy_from_user(&PortParams, argp, sizeof(struct PortParams))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (PortParams.Port >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- PortP = (p->RIOPortp[PortParams.Port]);
- PortParams.Config = PortP->Config;
- PortParams.State = PortP->State;
- rio_dprintk(RIO_DEBUG_CTRL, "Port %d\n", PortParams.Port);
-
- if (copy_to_user(argp, &PortParams, sizeof(struct PortParams))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_GET_PORT_TTY:
- rio_dprintk(RIO_DEBUG_CTRL, "Get port tty\n");
- if (copy_from_user(&PortTty, argp, sizeof(struct PortTty))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (PortTty.port >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
-
- rio_dprintk(RIO_DEBUG_CTRL, "Port %d\n", PortTty.port);
- PortP = (p->RIOPortp[PortTty.port]);
- if (copy_to_user(argp, &PortTty, sizeof(struct PortTty))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_SET_PORT_TTY:
- if (copy_from_user(&PortTty, argp, sizeof(struct PortTty))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Set port %d tty\n", PortTty.port);
- if (PortTty.port >= (ushort) RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- PortP = (p->RIOPortp[PortTty.port]);
- RIOParam(PortP, RIOC_CONFIG, PortP->State & RIO_MODEM,
- OK_TO_SLEEP);
- return retval;
-
- case RIO_SET_PORT_PARAMS:
- rio_dprintk(RIO_DEBUG_CTRL, "Set port params\n");
- if (copy_from_user(&PortParams, argp, sizeof(PortParams))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (PortParams.Port >= (ushort) RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- PortP = (p->RIOPortp[PortParams.Port]);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->Config = PortParams.Config;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_GET_PORT_STATS:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GET_PORT_STATS\n");
- if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (portStats.port < 0 || portStats.port >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- PortP = (p->RIOPortp[portStats.port]);
- portStats.gather = PortP->statsGather;
- portStats.txchars = PortP->txchars;
- portStats.rxchars = PortP->rxchars;
- portStats.opens = PortP->opens;
- portStats.closes = PortP->closes;
- portStats.ioctls = PortP->ioctls;
- if (copy_to_user(argp, &portStats, sizeof(struct portStats))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_RESET_PORT_STATS:
- port = arg;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_RESET_PORT_STATS\n");
- if (port >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- PortP = (p->RIOPortp[port]);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->txchars = 0;
- PortP->rxchars = 0;
- PortP->opens = 0;
- PortP->closes = 0;
- PortP->ioctls = 0;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_GATHER_PORT_STATS:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GATHER_PORT_STATS\n");
- if (copy_from_user(&portStats, argp, sizeof(struct portStats))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (portStats.port < 0 || portStats.port >= RIO_PORTS) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- PortP = (p->RIOPortp[portStats.port]);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->statsGather = portStats.gather;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_READ_CONFIG:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_CONFIG\n");
- if (copy_to_user(argp, &p->RIOConf, sizeof(struct Conf))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_SET_CONFIG:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_CONFIG\n");
- if (!su) {
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&p->RIOConf, argp, sizeof(struct Conf))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- /*
- ** move a few value around
- */
- for (Host = 0; Host < p->RIONumHosts; Host++)
- if ((p->RIOHosts[Host].Flags & RUN_STATE) == RC_RUNNING)
- writew(p->RIOConf.Timer, &p->RIOHosts[Host].ParmMapP->timer);
- return retval;
-
- case RIO_START_POLLER:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_START_POLLER\n");
- return -EINVAL;
-
- case RIO_STOP_POLLER:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_STOP_POLLER\n");
- if (!su) {
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- p->RIOPolling = NOT_POLLING;
- return retval;
-
- case RIO_SETDEBUG:
- case RIO_GETDEBUG:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG/RIO_GETDEBUG\n");
- if (copy_from_user(&DebugCtrl, argp, sizeof(DebugCtrl))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (DebugCtrl.SysPort == NO_PORT) {
- if (cmd == RIO_SETDEBUG) {
- if (!su) {
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- p->rio_debug = DebugCtrl.Debug;
- p->RIODebugWait = DebugCtrl.Wait;
- rio_dprintk(RIO_DEBUG_CTRL, "Set global debug to 0x%x set wait to 0x%x\n", p->rio_debug, p->RIODebugWait);
- } else {
- rio_dprintk(RIO_DEBUG_CTRL, "Get global debug 0x%x wait 0x%x\n", p->rio_debug, p->RIODebugWait);
- DebugCtrl.Debug = p->rio_debug;
- DebugCtrl.Wait = p->RIODebugWait;
- if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- }
- } else if (DebugCtrl.SysPort >= RIO_PORTS && DebugCtrl.SysPort != NO_PORT) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET/GET DEBUG: bad port number %d\n", DebugCtrl.SysPort);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- } else if (cmd == RIO_SETDEBUG) {
- if (!su) {
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- p->RIOPortp[DebugCtrl.SysPort]->Debug = DebugCtrl.Debug;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
- } else {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG 0x%x\n", p->RIOPortp[DebugCtrl.SysPort]->Debug);
- DebugCtrl.Debug = p->RIOPortp[DebugCtrl.SysPort]->Debug;
- if (copy_to_user(argp, &DebugCtrl, sizeof(DebugCtrl))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_GETDEBUG: Bad copy to user space\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- }
- return retval;
-
- case RIO_VERSID:
- /*
- ** Enquire about the release and version.
- ** We return MAX_VERSION_LEN bytes, being a
- ** textual null terminated string.
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID\n");
- if (copy_to_user(argp, RIOVersid(), sizeof(struct rioVersion))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_VERSID: Bad copy to user space (host=%d)\n", Host);
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_NUM_HOSTS:
- /*
- ** Enquire as to the number of hosts located
- ** at init time.
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS\n");
- if (copy_to_user(argp, &p->RIONumHosts, sizeof(p->RIONumHosts))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_NUM_HOSTS: Bad copy to user space\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- case RIO_HOST_FOAD:
- /*
- ** Kill host. This may not be in the final version...
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD %ld\n", arg);
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_FOAD: Not super user\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- p->RIOHalted = 1;
- p->RIOSystemUp = 0;
-
- for (Host = 0; Host < p->RIONumHosts; Host++) {
- (void) RIOBoardTest(p->RIOHosts[Host].PaddrP, p->RIOHosts[Host].Caddr, p->RIOHosts[Host].Type, p->RIOHosts[Host].Slot);
- memset(&p->RIOHosts[Host].Flags, 0, ((char *) &p->RIOHosts[Host].____end_marker____) - ((char *) &p->RIOHosts[Host].Flags));
- p->RIOHosts[Host].Flags = RC_WAITING;
- }
- RIOFoadWakeup(p);
- p->RIONumBootPkts = 0;
- p->RIOBooting = 0;
- printk("HEEEEELP!\n");
-
- for (loop = 0; loop < RIO_PORTS; loop++) {
- spin_lock_init(&p->RIOPortp[loop]->portSem);
- p->RIOPortp[loop]->InUse = NOT_INUSE;
- }
-
- p->RIOSystemUp = 0;
- return retval;
-
- case RIO_DOWNLOAD:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD\n");
- if (!su) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Not super user\n");
- p->RIOError.Error = NOT_SUPER_USER;
- return -EPERM;
- }
- if (copy_from_user(&DownLoad, argp, sizeof(DownLoad))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Copy in from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Copied in download code for product code 0x%x\n", DownLoad.ProductCode);
-
- /*
- ** It is important that the product code is an unsigned object!
- */
- if (DownLoad.ProductCode >= MAX_PRODUCT) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_DOWNLOAD: Bad product code %d passed\n", DownLoad.ProductCode);
- p->RIOError.Error = NO_SUCH_PRODUCT;
- return -ENXIO;
- }
- /*
- ** do something!
- */
- retval = (*(RIOBootTable[DownLoad.ProductCode])) (p, &DownLoad);
- /* <-- Panic */
- p->RIOHalted = 0;
- /*
- ** and go back, content with a job well completed.
- */
- return retval;
-
- case RIO_PARMS:
- {
- unsigned int host;
-
- if (copy_from_user(&host, argp, sizeof(host))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- /*
- ** Fetch the parmmap
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS\n");
- if (copy_from_io(argp, p->RIOHosts[host].ParmMapP, sizeof(PARM_MAP))) {
- p->RIOError.Error = COPYOUT_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_PARMS: Copy out to user space failed\n");
- return -EFAULT;
- }
- }
- return retval;
-
- case RIO_HOST_REQ:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ\n");
- if (copy_from_user(&HostReq, argp, sizeof(HostReq))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Copy in from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (HostReq.HostNum >= p->RIONumHosts) {
- p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Illegal host number %d\n", HostReq.HostNum);
- return -ENXIO;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Request for host %d\n", HostReq.HostNum);
-
- if (copy_to_user(HostReq.HostP, &p->RIOHosts[HostReq.HostNum], sizeof(struct Host))) {
- p->RIOError.Error = COPYOUT_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_REQ: Bad copy to user space\n");
- return -EFAULT;
- }
- return retval;
-
- case RIO_HOST_DPRAM:
- rio_dprintk(RIO_DEBUG_CTRL, "Request for DPRAM\n");
- if (copy_from_user(&HostDpRam, argp, sizeof(HostDpRam))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Copy in from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (HostDpRam.HostNum >= p->RIONumHosts) {
- p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Illegal host number %d\n", HostDpRam.HostNum);
- return -ENXIO;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Request for host %d\n", HostDpRam.HostNum);
-
- if (p->RIOHosts[HostDpRam.HostNum].Type == RIO_PCI) {
- int off;
- /* It's hardware like this that really gets on my tits. */
- static unsigned char copy[sizeof(struct DpRam)];
- for (off = 0; off < sizeof(struct DpRam); off++)
- copy[off] = readb(p->RIOHosts[HostDpRam.HostNum].Caddr + off);
- if (copy_to_user(HostDpRam.DpRamP, copy, sizeof(struct DpRam))) {
- p->RIOError.Error = COPYOUT_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
- return -EFAULT;
- }
- } else if (copy_from_io(HostDpRam.DpRamP, p->RIOHosts[HostDpRam.HostNum].Caddr, sizeof(struct DpRam))) {
- p->RIOError.Error = COPYOUT_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_DPRAM: Bad copy to user space\n");
- return -EFAULT;
- }
- return retval;
-
- case RIO_SET_BUSY:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY\n");
- if (arg > 511) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SET_BUSY: Bad port number %ld\n", arg);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- p->RIOPortp[arg]->State |= RIO_BUSY;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_HOST_PORT:
- /*
- ** The daemon want port information
- ** (probably for debug reasons)
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT\n");
- if (copy_from_user(&PortReq, argp, sizeof(PortReq))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Copy in from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
-
- if (PortReq.SysPort >= RIO_PORTS) { /* SysPort is unsigned */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Illegal port number %d\n", PortReq.SysPort);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Request for port %d\n", PortReq.SysPort);
- if (copy_to_user(PortReq.PortP, p->RIOPortp[PortReq.SysPort], sizeof(struct Port))) {
- p->RIOError.Error = COPYOUT_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_PORT: Bad copy to user space\n");
- return -EFAULT;
- }
- return retval;
-
- case RIO_HOST_RUP:
- /*
- ** The daemon want rup information
- ** (probably for debug reasons)
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP\n");
- if (copy_from_user(&RupReq, argp, sizeof(RupReq))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Copy in from user space failed\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (RupReq.HostNum >= p->RIONumHosts) { /* host is unsigned */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal host number %d\n", RupReq.HostNum);
- p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- if (RupReq.RupNum >= MAX_RUP + LINKS_PER_UNIT) { /* eek! */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Illegal rup number %d\n", RupReq.RupNum);
- p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- HostP = &p->RIOHosts[RupReq.HostNum];
-
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Host %d not running\n", RupReq.HostNum);
- p->RIOError.Error = HOST_NOT_RUNNING;
- return -EIO;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Request for rup %d from host %d\n", RupReq.RupNum, RupReq.HostNum);
-
- if (copy_from_io(RupReq.RupP, HostP->UnixRups[RupReq.RupNum].RupP, sizeof(struct RUP))) {
- p->RIOError.Error = COPYOUT_FAILED;
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_RUP: Bad copy to user space\n");
- return -EFAULT;
- }
- return retval;
-
- case RIO_HOST_LPB:
- /*
- ** The daemon want lpb information
- ** (probably for debug reasons)
- */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB\n");
- if (copy_from_user(&LpbReq, argp, sizeof(LpbReq))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy from user space\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (LpbReq.Host >= p->RIONumHosts) { /* host is unsigned */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal host number %d\n", LpbReq.Host);
- p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
- if (LpbReq.Link >= LINKS_PER_UNIT) { /* eek! */
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Illegal link number %d\n", LpbReq.Link);
- p->RIOError.Error = LINK_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- HostP = &p->RIOHosts[LpbReq.Host];
-
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Host %d not running\n", LpbReq.Host);
- p->RIOError.Error = HOST_NOT_RUNNING;
- return -EIO;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Request for lpb %d from host %d\n", LpbReq.Link, LpbReq.Host);
-
- if (copy_from_io(LpbReq.LpbP, &HostP->LinkStrP[LpbReq.Link], sizeof(struct LPB))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_HOST_LPB: Bad copy to user space\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return retval;
-
- /*
- ** Here 3 IOCTL's that allow us to change the way in which
- ** rio logs errors. send them just to syslog or send them
- ** to both syslog and console or send them to just the console.
- **
- ** See RioStrBuf() in util.c for the other half.
- */
- case RIO_SYSLOG_ONLY:
- p->RIOPrintLogState = PRINT_TO_LOG; /* Just syslog */
- return 0;
-
- case RIO_SYSLOG_CONS:
- p->RIOPrintLogState = PRINT_TO_LOG_CONS; /* syslog and console */
- return 0;
-
- case RIO_CONS_ONLY:
- p->RIOPrintLogState = PRINT_TO_CONS; /* Just console */
- return 0;
-
- case RIO_SIGNALS_ON:
- if (p->RIOSignalProcess) {
- p->RIOError.Error = SIGNALS_ALREADY_SET;
- return -EBUSY;
- }
- /* FIXME: PID tracking */
- p->RIOSignalProcess = current->pid;
- p->RIOPrintDisabled = DONT_PRINT;
- return retval;
-
- case RIO_SIGNALS_OFF:
- if (p->RIOSignalProcess != current->pid) {
- p->RIOError.Error = NOT_RECEIVING_PROCESS;
- return -EPERM;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "Clear signal process to zero\n");
- p->RIOSignalProcess = 0;
- return retval;
-
- case RIO_SET_BYTE_MODE:
- for (Host = 0; Host < p->RIONumHosts; Host++)
- if (p->RIOHosts[Host].Type == RIO_AT)
- p->RIOHosts[Host].Mode &= ~WORD_OPERATION;
- return retval;
-
- case RIO_SET_WORD_MODE:
- for (Host = 0; Host < p->RIONumHosts; Host++)
- if (p->RIOHosts[Host].Type == RIO_AT)
- p->RIOHosts[Host].Mode |= WORD_OPERATION;
- return retval;
-
- case RIO_SET_FAST_BUS:
- for (Host = 0; Host < p->RIONumHosts; Host++)
- if (p->RIOHosts[Host].Type == RIO_AT)
- p->RIOHosts[Host].Mode |= FAST_AT_BUS;
- return retval;
-
- case RIO_SET_SLOW_BUS:
- for (Host = 0; Host < p->RIONumHosts; Host++)
- if (p->RIOHosts[Host].Type == RIO_AT)
- p->RIOHosts[Host].Mode &= ~FAST_AT_BUS;
- return retval;
-
- case RIO_MAP_B50_TO_50:
- case RIO_MAP_B50_TO_57600:
- case RIO_MAP_B110_TO_110:
- case RIO_MAP_B110_TO_115200:
- rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping\n");
- port = arg;
- if (port < 0 || port > 511) {
- rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", port);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- switch (cmd) {
- case RIO_MAP_B50_TO_50:
- p->RIOPortp[port]->Config |= RIO_MAP_50_TO_50;
- break;
- case RIO_MAP_B50_TO_57600:
- p->RIOPortp[port]->Config &= ~RIO_MAP_50_TO_50;
- break;
- case RIO_MAP_B110_TO_110:
- p->RIOPortp[port]->Config |= RIO_MAP_110_TO_110;
- break;
- case RIO_MAP_B110_TO_115200:
- p->RIOPortp[port]->Config &= ~RIO_MAP_110_TO_110;
- break;
- }
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_STREAM_INFO:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_STREAM_INFO\n");
- return -EINVAL;
-
- case RIO_SEND_PACKET:
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET\n");
- if (copy_from_user(&SendPack, argp, sizeof(SendPack))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_SEND_PACKET: Bad copy from user space\n");
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- if (SendPack.PortNum >= 128) {
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -ENXIO;
- }
-
- PortP = p->RIOPortp[SendPack.PortNum];
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- if (!can_add_transmit(&PacketP, PortP)) {
- p->RIOError.Error = UNIT_IS_IN_USE;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return -ENOSPC;
- }
-
- for (loop = 0; loop < (ushort) (SendPack.Len & 127); loop++)
- writeb(SendPack.Data[loop], &PacketP->data[loop]);
-
- writeb(SendPack.Len, &PacketP->len);
-
- add_transmit(PortP);
- /*
- ** Count characters transmitted for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->txchars += (SendPack.Len & 127);
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
-
- case RIO_NO_MESG:
- if (su)
- p->RIONoMessage = 1;
- return su ? 0 : -EPERM;
-
- case RIO_MESG:
- if (su)
- p->RIONoMessage = 0;
- return su ? 0 : -EPERM;
-
- case RIO_WHAT_MESG:
- if (copy_to_user(argp, &p->RIONoMessage, sizeof(p->RIONoMessage))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_WHAT_MESG: Bad copy to user space\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return 0;
-
- case RIO_MEM_DUMP:
- if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP host %d rup %d addr %x\n", SubCmd.Host, SubCmd.Rup, SubCmd.Addr);
-
- if (SubCmd.Rup >= MAX_RUP + LINKS_PER_UNIT) {
- p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- if (SubCmd.Host >= p->RIONumHosts) {
- p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- port = p->RIOHosts[SubCmd.Host].UnixRups[SubCmd.Rup].BaseSysPort;
-
- PortP = p->RIOPortp[port];
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- if (RIOPreemptiveCmd(p, PortP, RIOC_MEMDUMP) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP failed\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return -EBUSY;
- } else
- PortP->State |= RIO_BUSY;
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (copy_to_user(argp, p->RIOMemDump, MEMDUMP_SIZE)) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_MEM_DUMP copy failed\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return 0;
-
- case RIO_TICK:
- if (arg >= p->RIONumHosts)
- return -EINVAL;
- rio_dprintk(RIO_DEBUG_CTRL, "Set interrupt for host %ld\n", arg);
- writeb(0xFF, &p->RIOHosts[arg].SetInt);
- return 0;
-
- case RIO_TOCK:
- if (arg >= p->RIONumHosts)
- return -EINVAL;
- rio_dprintk(RIO_DEBUG_CTRL, "Clear interrupt for host %ld\n", arg);
- writeb(0xFF, &p->RIOHosts[arg].ResetInt);
- return 0;
-
- case RIO_READ_CHECK:
- /* Check reads for pkts with data[0] the same */
- p->RIOReadCheck = !p->RIOReadCheck;
- if (copy_to_user(argp, &p->RIOReadCheck, sizeof(unsigned int))) {
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return 0;
-
- case RIO_READ_REGISTER:
- if (copy_from_user(&SubCmd, argp, sizeof(struct SubCmdStruct))) {
- p->RIOError.Error = COPYIN_FAILED;
- return -EFAULT;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER host %d rup %d port %d reg %x\n", SubCmd.Host, SubCmd.Rup, SubCmd.Port, SubCmd.Addr);
-
- if (SubCmd.Port > 511) {
- rio_dprintk(RIO_DEBUG_CTRL, "Baud rate mapping: Bad port number %d\n", SubCmd.Port);
- p->RIOError.Error = PORT_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- if (SubCmd.Rup >= MAX_RUP + LINKS_PER_UNIT) {
- p->RIOError.Error = RUP_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- if (SubCmd.Host >= p->RIONumHosts) {
- p->RIOError.Error = HOST_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- port = p->RIOHosts[SubCmd.Host].UnixRups[SubCmd.Rup].BaseSysPort + SubCmd.Port;
- PortP = p->RIOPortp[port];
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- if (RIOPreemptiveCmd(p, PortP, RIOC_READ_REGISTER) ==
- RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER failed\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return -EBUSY;
- } else
- PortP->State |= RIO_BUSY;
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (copy_to_user(argp, &p->CdRegister, sizeof(unsigned int))) {
- rio_dprintk(RIO_DEBUG_CTRL, "RIO_READ_REGISTER copy failed\n");
- p->RIOError.Error = COPYOUT_FAILED;
- return -EFAULT;
- }
- return 0;
- /*
- ** rio_make_dev: given port number (0-511) ORed with port type
- ** (RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT) return dev_t
- ** value to pass to mknod to create the correct device node.
- */
- case RIO_MAKE_DEV:
- {
- unsigned int port = arg & RIO_MODEM_MASK;
- unsigned int ret;
-
- switch (arg & RIO_DEV_MASK) {
- case RIO_DEV_DIRECT:
- ret = drv_makedev(MAJOR(dev), port);
- rio_dprintk(RIO_DEBUG_CTRL, "Makedev direct 0x%x is 0x%x\n", port, ret);
- return ret;
- case RIO_DEV_MODEM:
- ret = drv_makedev(MAJOR(dev), (port | RIO_MODEM_BIT));
- rio_dprintk(RIO_DEBUG_CTRL, "Makedev modem 0x%x is 0x%x\n", port, ret);
- return ret;
- case RIO_DEV_XPRINT:
- ret = drv_makedev(MAJOR(dev), port);
- rio_dprintk(RIO_DEBUG_CTRL, "Makedev printer 0x%x is 0x%x\n", port, ret);
- return ret;
- }
- rio_dprintk(RIO_DEBUG_CTRL, "MAKE Device is called\n");
- return -EINVAL;
- }
- /*
- ** rio_minor: given a dev_t from a stat() call, return
- ** the port number (0-511) ORed with the port type
- ** ( RIO_DEV_DIRECT, RIO_DEV_MODEM, RIO_DEV_XPRINT )
- */
- case RIO_MINOR:
- {
- dev_t dv;
- int mino;
- unsigned long ret;
-
- dv = (dev_t) (arg);
- mino = RIO_UNMODEM(dv);
-
- if (RIO_ISMODEM(dv)) {
- rio_dprintk(RIO_DEBUG_CTRL, "Minor for device 0x%x: modem %d\n", dv, mino);
- ret = mino | RIO_DEV_MODEM;
- } else {
- rio_dprintk(RIO_DEBUG_CTRL, "Minor for device 0x%x: direct %d\n", dv, mino);
- ret = mino | RIO_DEV_DIRECT;
- }
- return ret;
- }
- }
- rio_dprintk(RIO_DEBUG_CTRL, "INVALID DAEMON IOCTL 0x%x\n", cmd);
- p->RIOError.Error = IOCTL_COMMAND_UNKNOWN;
-
- func_exit();
- return -EINVAL;
-}
-
-/*
-** Pre-emptive commands go on RUPs and are only one byte long.
-*/
-int RIOPreemptiveCmd(struct rio_info *p, struct Port *PortP, u8 Cmd)
-{
- struct CmdBlk *CmdBlkP;
- struct PktCmd_M *PktCmdP;
- int Ret;
- ushort rup;
- int port;
-
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_CTRL, "Preemptive command to deleted RTA ignored\n");
- return RIO_FAIL;
- }
-
- if ((PortP->InUse == (typeof(PortP->InUse))-1) ||
- !(CmdBlkP = RIOGetCmdBlk())) {
- rio_dprintk(RIO_DEBUG_CTRL, "Cannot allocate command block "
- "for command %d on port %d\n", Cmd, PortP->PortNum);
- return RIO_FAIL;
- }
-
- rio_dprintk(RIO_DEBUG_CTRL, "Command blk %p - InUse now %d\n",
- CmdBlkP, PortP->InUse);
-
- PktCmdP = (struct PktCmd_M *)&CmdBlkP->Packet.data[0];
-
- CmdBlkP->Packet.src_unit = 0;
- if (PortP->SecondBlock)
- rup = PortP->ID2;
- else
- rup = PortP->RupNum;
- CmdBlkP->Packet.dest_unit = rup;
- CmdBlkP->Packet.src_port = COMMAND_RUP;
- CmdBlkP->Packet.dest_port = COMMAND_RUP;
- CmdBlkP->Packet.len = PKT_CMD_BIT | 2;
- CmdBlkP->PostFuncP = RIOUnUse;
- CmdBlkP->PostArg = (unsigned long) PortP;
- PktCmdP->Command = Cmd;
- port = PortP->HostPort % (ushort) PORTS_PER_RTA;
- /*
- ** Index ports 8-15 for 2nd block of 16 port RTA.
- */
- if (PortP->SecondBlock)
- port += (ushort) PORTS_PER_RTA;
- PktCmdP->PhbNum = port;
-
- switch (Cmd) {
- case RIOC_MEMDUMP:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue MEMDUMP command blk %p "
- "(addr 0x%x)\n", CmdBlkP, (int) SubCmd.Addr);
- PktCmdP->SubCommand = RIOC_MEMDUMP;
- PktCmdP->SubAddr = SubCmd.Addr;
- break;
- case RIOC_FCLOSE:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue FCLOSE command blk %p\n",
- CmdBlkP);
- break;
- case RIOC_READ_REGISTER:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue READ_REGISTER (0x%x) "
- "command blk %p\n", (int) SubCmd.Addr, CmdBlkP);
- PktCmdP->SubCommand = RIOC_READ_REGISTER;
- PktCmdP->SubAddr = SubCmd.Addr;
- break;
- case RIOC_RESUME:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue RESUME command blk %p\n",
- CmdBlkP);
- break;
- case RIOC_RFLUSH:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue RFLUSH command blk %p\n",
- CmdBlkP);
- CmdBlkP->PostFuncP = RIORFlushEnable;
- break;
- case RIOC_SUSPEND:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue SUSPEND command blk %p\n",
- CmdBlkP);
- break;
-
- case RIOC_MGET:
- rio_dprintk(RIO_DEBUG_CTRL, "Queue MGET command blk %p\n",
- CmdBlkP);
- break;
-
- case RIOC_MSET:
- case RIOC_MBIC:
- case RIOC_MBIS:
- CmdBlkP->Packet.data[4] = (char) PortP->ModemLines;
- rio_dprintk(RIO_DEBUG_CTRL, "Queue MSET/MBIC/MBIS command "
- "blk %p\n", CmdBlkP);
- break;
-
- case RIOC_WFLUSH:
- /*
- ** If we have queued up the maximum number of Write flushes
- ** allowed then we should not bother sending any more to the
- ** RTA.
- */
- if (PortP->WflushFlag == (typeof(PortP->WflushFlag))-1) {
- rio_dprintk(RIO_DEBUG_CTRL, "Trashed WFLUSH, "
- "WflushFlag about to wrap!");
- RIOFreeCmdBlk(CmdBlkP);
- return (RIO_FAIL);
- } else {
- rio_dprintk(RIO_DEBUG_CTRL, "Queue WFLUSH command "
- "blk %p\n", CmdBlkP);
- CmdBlkP->PostFuncP = RIOWFlushMark;
- }
- break;
- }
-
- PortP->InUse++;
-
- Ret = RIOQueueCmdBlk(PortP->HostP, rup, CmdBlkP);
-
- return Ret;
-}
diff --git a/drivers/char/rio/riodrvr.h b/drivers/char/rio/riodrvr.h
deleted file mode 100644
index 0907e711b35..00000000000
--- a/drivers/char/rio/riodrvr.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : riodrvr.h
-** SID : 1.3
-** Last Modified : 11/6/98 09:22:46
-** Retrieved : 11/6/98 09:22:46
-**
-** ident @(#)riodrvr.h 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __riodrvr_h
-#define __riodrvr_h
-
-#include <asm/param.h> /* for HZ */
-
-#define MEMDUMP_SIZE 32
-#define MOD_DISABLE (RIO_NOREAD|RIO_NOWRITE|RIO_NOXPRINT)
-
-
-struct rio_info {
- int mode; /* Intr or polled, word/byte */
- spinlock_t RIOIntrSem; /* Interrupt thread sem */
- int current_chan; /* current channel */
- int RIOFailed; /* Not initialised ? */
- int RIOInstallAttempts; /* no. of rio-install() calls */
- int RIOLastPCISearch; /* status of last search */
- int RIONumHosts; /* Number of RIO Hosts */
- struct Host *RIOHosts; /* RIO Host values */
- struct Port **RIOPortp; /* RIO port values */
-/*
-** 02.03.1999 ARG - ESIL 0820 fix
-** We no longer use RIOBootMode
-**
- int RIOBootMode; * RIO boot mode *
-**
-*/
- int RIOPrintDisabled; /* RIO printing disabled ? */
- int RIOPrintLogState; /* RIO printing state ? */
- int RIOPolling; /* Polling ? */
-/*
-** 09.12.1998 ARG - ESIL 0776 part fix
-** The 'RIO_QUICK_CHECK' ioctl was using RIOHalted.
-** The fix for this ESIL introduces another member (RIORtaDisCons) here to be
-** updated in RIOConCon() - to keep track of RTA connections/disconnections.
-** 'RIO_QUICK_CHECK' now returns the value of RIORtaDisCons.
-*/
- int RIOHalted; /* halted ? */
- int RIORtaDisCons; /* RTA connections/disconnections */
- unsigned int RIOReadCheck; /* Rio read check */
- unsigned int RIONoMessage; /* To display message or not */
- unsigned int RIONumBootPkts; /* how many packets for an RTA */
- unsigned int RIOBootCount; /* size of RTA code */
- unsigned int RIOBooting; /* count of outstanding boots */
- unsigned int RIOSystemUp; /* Booted ?? */
- unsigned int RIOCounting; /* for counting interrupts */
- unsigned int RIOIntCount; /* # of intr since last check */
- unsigned int RIOTxCount; /* number of xmit intrs */
- unsigned int RIORxCount; /* number of rx intrs */
- unsigned int RIORupCount; /* number of rup intrs */
- int RIXTimer;
- int RIOBufferSize; /* Buffersize */
- int RIOBufferMask; /* Buffersize */
-
- int RIOFirstMajor; /* First host card's major no */
-
- unsigned int RIOLastPortsMapped; /* highest port number known */
- unsigned int RIOFirstPortsMapped; /* lowest port number known */
-
- unsigned int RIOLastPortsBooted; /* highest port number running */
- unsigned int RIOFirstPortsBooted; /* lowest port number running */
-
- unsigned int RIOLastPortsOpened; /* highest port number running */
- unsigned int RIOFirstPortsOpened; /* lowest port number running */
-
- /* Flag to say that the topology information has been changed. */
- unsigned int RIOQuickCheck;
- unsigned int CdRegister; /* ??? */
- int RIOSignalProcess; /* Signalling process */
- int rio_debug; /* To debug ... */
- int RIODebugWait; /* For what ??? */
- int tpri; /* Thread prio */
- int tid; /* Thread id */
- unsigned int _RIO_Polled; /* Counter for polling */
- unsigned int _RIO_Interrupted; /* Counter for interrupt */
- int intr_tid; /* iointset return value */
- int TxEnSem; /* TxEnable Semaphore */
-
-
- struct Error RIOError; /* to Identify what went wrong */
- struct Conf RIOConf; /* Configuration ??? */
- struct ttystatics channel[RIO_PORTS]; /* channel information */
- char RIOBootPackets[1 + (SIXTY_FOUR_K / RTA_BOOT_DATA_SIZE)]
- [RTA_BOOT_DATA_SIZE];
- struct Map RIOConnectTable[TOTAL_MAP_ENTRIES];
- struct Map RIOSavedTable[TOTAL_MAP_ENTRIES];
-
- /* RTA to host binding table for master/slave operation */
- unsigned long RIOBindTab[MAX_RTA_BINDINGS];
- /* RTA memory dump variable */
- unsigned char RIOMemDump[MEMDUMP_SIZE];
- struct ModuleInfo RIOModuleTypes[MAX_MODULE_TYPES];
-
-};
-
-
-#ifdef linux
-#define debug(x) printk x
-#else
-#define debug(x) kkprintf x
-#endif
-
-
-
-#define RIO_RESET_INT 0x7d80
-
-#endif /* __riodrvr.h */
diff --git a/drivers/char/rio/rioinfo.h b/drivers/char/rio/rioinfo.h
deleted file mode 100644
index 42ff1e79d96..00000000000
--- a/drivers/char/rio/rioinfo.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioinfo.h
-** SID : 1.2
-** Last Modified : 11/6/98 14:07:49
-** Retrieved : 11/6/98 14:07:50
-**
-** ident @(#)rioinfo.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rioinfo_h
-#define __rioinfo_h
-
-/*
-** Host card data structure
-*/
-struct RioHostInfo {
- long location; /* RIO Card Base I/O address */
- long vector; /* RIO Card IRQ vector */
- int bus; /* ISA/EISA/MCA/PCI */
- int mode; /* pointer to host mode - INTERRUPT / POLLED */
- struct old_sgttyb
- *Sg; /* pointer to default term characteristics */
-};
-
-
-/* Mode in rio device info */
-#define INTERRUPTED_MODE 0x01 /* Interrupt is generated */
-#define POLLED_MODE 0x02 /* No interrupt */
-#define AUTO_MODE 0x03 /* Auto mode */
-
-#define WORD_ACCESS_MODE 0x10 /* Word Access Mode */
-#define BYTE_ACCESS_MODE 0x20 /* Byte Access Mode */
-
-
-/* Bus type that RIO supports */
-#define ISA_BUS 0x01 /* The card is ISA */
-#define EISA_BUS 0x02 /* The card is EISA */
-#define MCA_BUS 0x04 /* The card is MCA */
-#define PCI_BUS 0x08 /* The card is PCI */
-
-/*
-** 11.11.1998 ARG - ESIL ???? part fix
-** Moved definition for 'CHAN' here from rioinfo.c (it is now
-** called 'DEF_TERM_CHARACTERISTICS').
-*/
-
-#define DEF_TERM_CHARACTERISTICS \
-{ \
- B19200, B19200, /* input and output speed */ \
- 'H' - '@', /* erase char */ \
- -1, /* 2nd erase char */ \
- 'U' - '@', /* kill char */ \
- ECHO | CRMOD, /* mode */ \
- 'C' - '@', /* interrupt character */ \
- '\\' - '@', /* quit char */ \
- 'Q' - '@', /* start char */ \
- 'S' - '@', /* stop char */ \
- 'D' - '@', /* EOF */ \
- -1, /* brk */ \
- (LCRTBS | LCRTERA | LCRTKIL | LCTLECH), /* local mode word */ \
- 'Z' - '@', /* process stop */ \
- 'Y' - '@', /* delayed stop */ \
- 'R' - '@', /* reprint line */ \
- 'O' - '@', /* flush output */ \
- 'W' - '@', /* word erase */ \
- 'V' - '@' /* literal next char */ \
-}
-
-#endif /* __rioinfo_h */
diff --git a/drivers/char/rio/rioinit.c b/drivers/char/rio/rioinit.c
deleted file mode 100644
index 24a282bb89d..00000000000
--- a/drivers/char/rio/rioinit.c
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioinit.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:43
-** Retrieved : 11/6/98 10:33:49
-**
-** ident @(#)rioinit.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "rio_linux.h"
-
-int RIOPCIinit(struct rio_info *p, int Mode);
-
-static int RIOScrub(int, u8 __iomem *, int);
-
-
-/**
-** RIOAssignAT :
-**
-** Fill out the fields in the p->RIOHosts structure now we know we know
-** we have a board present.
-**
-** bits < 0 indicates 8 bit operation requested,
-** bits > 0 indicates 16 bit operation.
-*/
-
-int RIOAssignAT(struct rio_info *p, int Base, void __iomem *virtAddr, int mode)
-{
- int bits;
- struct DpRam __iomem *cardp = (struct DpRam __iomem *)virtAddr;
-
- if ((Base < ONE_MEG) || (mode & BYTE_ACCESS_MODE))
- bits = BYTE_OPERATION;
- else
- bits = WORD_OPERATION;
-
- /*
- ** Board has passed its scrub test. Fill in all the
- ** transient stuff.
- */
- p->RIOHosts[p->RIONumHosts].Caddr = virtAddr;
- p->RIOHosts[p->RIONumHosts].CardP = virtAddr;
-
- /*
- ** Revision 01 AT host cards don't support WORD operations,
- */
- if (readb(&cardp->DpRevision) == 01)
- bits = BYTE_OPERATION;
-
- p->RIOHosts[p->RIONumHosts].Type = RIO_AT;
- p->RIOHosts[p->RIONumHosts].Copy = rio_copy_to_card;
- /* set this later */
- p->RIOHosts[p->RIONumHosts].Slot = -1;
- p->RIOHosts[p->RIONumHosts].Mode = SLOW_LINKS | SLOW_AT_BUS | bits;
- writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | p->RIOHosts[p->RIONumHosts].Mode | INTERRUPT_DISABLE ,
- &p->RIOHosts[p->RIONumHosts].Control);
- writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
- writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | p->RIOHosts[p->RIONumHosts].Mode | INTERRUPT_DISABLE,
- &p->RIOHosts[p->RIONumHosts].Control);
- writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
- p->RIOHosts[p->RIONumHosts].UniqueNum =
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[0])&0xFF)<<0)|
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[1])&0xFF)<<8)|
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[2])&0xFF)<<16)|
- ((readb(&p->RIOHosts[p->RIONumHosts].Unique[3])&0xFF)<<24);
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Uniquenum 0x%x\n",p->RIOHosts[p->RIONumHosts].UniqueNum);
-
- p->RIONumHosts++;
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Tests Passed at 0x%x\n", Base);
- return(1);
-}
-
-static u8 val[] = {
-#ifdef VERY_LONG_TEST
- 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
- 0xa5, 0xff, 0x5a, 0x00, 0xff, 0xc9, 0x36,
-#endif
- 0xff, 0x00, 0x00 };
-
-#define TEST_END sizeof(val)
-
-/*
-** RAM test a board.
-** Nothing too complicated, just enough to check it out.
-*/
-int RIOBoardTest(unsigned long paddr, void __iomem *caddr, unsigned char type, int slot)
-{
- struct DpRam __iomem *DpRam = caddr;
- void __iomem *ram[4];
- int size[4];
- int op, bank;
- int nbanks;
-
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Reset host type=%d, DpRam=%p, slot=%d\n",
- type, DpRam, slot);
-
- RIOHostReset(type, DpRam, slot);
-
- /*
- ** Scrub the memory. This comes in several banks:
- ** DPsram1 - 7000h bytes
- ** DPsram2 - 200h bytes
- ** DPsram3 - 7000h bytes
- ** scratch - 1000h bytes
- */
-
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Setup ram/size arrays\n");
-
- size[0] = DP_SRAM1_SIZE;
- size[1] = DP_SRAM2_SIZE;
- size[2] = DP_SRAM3_SIZE;
- size[3] = DP_SCRATCH_SIZE;
-
- ram[0] = DpRam->DpSram1;
- ram[1] = DpRam->DpSram2;
- ram[2] = DpRam->DpSram3;
- nbanks = (type == RIO_PCI) ? 3 : 4;
- if (nbanks == 4)
- ram[3] = DpRam->DpScratch;
-
-
- if (nbanks == 3) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Memory: %p(0x%x), %p(0x%x), %p(0x%x)\n",
- ram[0], size[0], ram[1], size[1], ram[2], size[2]);
- } else {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: %p(0x%x), %p(0x%x), %p(0x%x), %p(0x%x)\n",
- ram[0], size[0], ram[1], size[1], ram[2], size[2], ram[3], size[3]);
- }
-
- /*
- ** This scrub operation will test for crosstalk between
- ** banks. TEST_END is a magic number, and relates to the offset
- ** within the 'val' array used by Scrub.
- */
- for (op=0; op<TEST_END; op++) {
- for (bank=0; bank<nbanks; bank++) {
- if (RIOScrub(op, ram[bank], size[bank]) == RIO_FAIL) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: RIOScrub band %d, op %d failed\n",
- bank, op);
- return RIO_FAIL;
- }
- }
- }
-
- rio_dprintk (RIO_DEBUG_INIT, "Test completed\n");
- return 0;
-}
-
-
-/*
-** Scrub an area of RAM.
-** Define PRETEST and POSTTEST for a more thorough checking of the
-** state of the memory.
-** Call with op set to an index into the above 'val' array to determine
-** which value will be written into memory.
-** Call with op set to zero means that the RAM will not be read and checked
-** before it is written.
-** Call with op not zero and the RAM will be read and compared with val[op-1]
-** to check that the data from the previous phase was retained.
-*/
-
-static int RIOScrub(int op, u8 __iomem *ram, int size)
-{
- int off;
- unsigned char oldbyte;
- unsigned char newbyte;
- unsigned char invbyte;
- unsigned short oldword;
- unsigned short newword;
- unsigned short invword;
- unsigned short swapword;
-
- if (op) {
- oldbyte = val[op-1];
- oldword = oldbyte | (oldbyte<<8);
- } else
- oldbyte = oldword = 0; /* Tell the compiler we've initilalized them. */
- newbyte = val[op];
- newword = newbyte | (newbyte<<8);
- invbyte = ~newbyte;
- invword = invbyte | (invbyte<<8);
-
- /*
- ** Check that the RAM contains the value that should have been left there
- ** by the previous test (not applicable for pass zero)
- */
- if (op) {
- for (off=0; off<size; off++) {
- if (readb(ram + off) != oldbyte) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 1: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, readb(ram + off));
- return RIO_FAIL;
- }
- }
- for (off=0; off<size; off+=2) {
- if (readw(ram + off) != oldword) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: WORD at offset 0x%x should have been=%x, was=%x\n",off,oldword, readw(ram + off));
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram+off+1));
- return RIO_FAIL;
- }
- }
- }
-
- /*
- ** Now write the INVERSE of the test data into every location, using
- ** BYTE write operations, first checking before each byte is written
- ** that the location contains the old value still, and checking after
- ** the write that the location contains the data specified - this is
- ** the BYTE read/write test.
- */
- for (off=0; off<size; off++) {
- if (op && (readb(ram + off) != oldbyte)) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, readb(ram + off));
- return RIO_FAIL;
- }
- writeb(invbyte, ram + off);
- if (readb(ram + off) != invbyte) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Inv Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, invbyte, readb(ram + off));
- return RIO_FAIL;
- }
- }
-
- /*
- ** now, use WORD operations to write the test value into every location,
- ** check as before that the location contains the previous test value
- ** before overwriting, and that it contains the data value written
- ** afterwards.
- ** This is the WORD operation test.
- */
- for (off=0; off<size; off+=2) {
- if (readw(ram + off) != invword) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: WORD at offset 0x%x should have been=%x, was=%x\n", off, invword, readw(ram + off));
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram+off+1));
- return RIO_FAIL;
- }
-
- writew(newword, ram + off);
- if ( readw(ram + off) != newword ) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, readw(ram + off));
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
- return RIO_FAIL;
- }
- }
-
- /*
- ** now run through the block of memory again, first in byte mode
- ** then in word mode, and check that all the locations contain the
- ** required test data.
- */
- for (off=0; off<size; off++) {
- if (readb(ram + off) != newbyte) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Byte Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, readb(ram + off));
- return RIO_FAIL;
- }
- }
-
- for (off=0; off<size; off+=2) {
- if (readw(ram + off) != newword ) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, readw(ram + off));
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
- return RIO_FAIL;
- }
- }
-
- /*
- ** time to check out byte swapping errors
- */
- swapword = invbyte | (newbyte << 8);
-
- for (off=0; off<size; off+=2) {
- writeb(invbyte, &ram[off]);
- writeb(newbyte, &ram[off+1]);
- }
-
- for ( off=0; off<size; off+=2 ) {
- if (readw(ram + off) != swapword) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, swapword, readw(ram + off));
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
- return RIO_FAIL;
- }
- writew(~swapword, ram + off);
- }
-
- for (off=0; off<size; off+=2) {
- if (readb(ram + off) != newbyte) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, readb(ram + off));
- return RIO_FAIL;
- }
- if (readb(ram + off + 1) != invbyte) {
- rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off+1, invbyte, readb(ram + off + 1));
- return RIO_FAIL;
- }
- writew(newword, ram + off);
- }
- return 0;
-}
-
-
-int RIODefaultName(struct rio_info *p, struct Host *HostP, unsigned int UnitId)
-{
- memcpy(HostP->Mapping[UnitId].Name, "UNKNOWN RTA X-XX", 17);
- HostP->Mapping[UnitId].Name[12]='1'+(HostP-p->RIOHosts);
- if ((UnitId+1) > 9) {
- HostP->Mapping[UnitId].Name[14]='0'+((UnitId+1)/10);
- HostP->Mapping[UnitId].Name[15]='0'+((UnitId+1)%10);
- }
- else {
- HostP->Mapping[UnitId].Name[14]='1'+UnitId;
- HostP->Mapping[UnitId].Name[15]=0;
- }
- return 0;
-}
-
-#define RIO_RELEASE "Linux"
-#define RELEASE_ID "1.0"
-
-static struct rioVersion stVersion;
-
-struct rioVersion *RIOVersid(void)
-{
- strlcpy(stVersion.version, "RIO driver for linux V1.0",
- sizeof(stVersion.version));
- strlcpy(stVersion.buildDate, __DATE__,
- sizeof(stVersion.buildDate));
-
- return &stVersion;
-}
-
-void RIOHostReset(unsigned int Type, struct DpRam __iomem *DpRamP, unsigned int Slot)
-{
- /*
- ** Reset the Tpu
- */
- rio_dprintk (RIO_DEBUG_INIT, "RIOHostReset: type 0x%x", Type);
- switch ( Type ) {
- case RIO_AT:
- rio_dprintk (RIO_DEBUG_INIT, " (RIO_AT)\n");
- writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | INTERRUPT_DISABLE | BYTE_OPERATION |
- SLOW_LINKS | SLOW_AT_BUS, &DpRamP->DpControl);
- writeb(0xFF, &DpRamP->DpResetTpu);
- udelay(3);
- rio_dprintk (RIO_DEBUG_INIT, "RIOHostReset: Don't know if it worked. Try reset again\n");
- writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | INTERRUPT_DISABLE |
- BYTE_OPERATION | SLOW_LINKS | SLOW_AT_BUS, &DpRamP->DpControl);
- writeb(0xFF, &DpRamP->DpResetTpu);
- udelay(3);
- break;
- case RIO_PCI:
- rio_dprintk (RIO_DEBUG_INIT, " (RIO_PCI)\n");
- writeb(RIO_PCI_BOOT_FROM_RAM, &DpRamP->DpControl);
- writeb(0xFF, &DpRamP->DpResetInt);
- writeb(0xFF, &DpRamP->DpResetTpu);
- udelay(100);
- break;
- default:
- rio_dprintk (RIO_DEBUG_INIT, " (UNKNOWN)\n");
- break;
- }
- return;
-}
diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c
deleted file mode 100644
index 2e71aecae20..00000000000
--- a/drivers/char/rio/riointr.c
+++ /dev/null
@@ -1,645 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : riointr.c
-** SID : 1.2
-** Last Modified : 11/6/98 10:33:44
-** Retrieved : 11/6/98 10:33:49
-**
-** ident @(#)riointr.c 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-#include <linux/delay.h>
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-
-
-static void RIOReceive(struct rio_info *, struct Port *);
-
-
-static char *firstchars(char *p, int nch)
-{
- static char buf[2][128];
- static int t = 0;
- t = !t;
- memcpy(buf[t], p, nch);
- buf[t][nch] = 0;
- return buf[t];
-}
-
-
-#define INCR( P, I ) ((P) = (((P)+(I)) & p->RIOBufferMask))
-/* Enable and start the transmission of packets */
-void RIOTxEnable(char *en)
-{
- struct Port *PortP;
- struct rio_info *p;
- struct tty_struct *tty;
- int c;
- struct PKT __iomem *PacketP;
- unsigned long flags;
-
- PortP = (struct Port *) en;
- p = (struct rio_info *) PortP->p;
- tty = PortP->gs.port.tty;
-
-
- rio_dprintk(RIO_DEBUG_INTR, "tx port %d: %d chars queued.\n", PortP->PortNum, PortP->gs.xmit_cnt);
-
- if (!PortP->gs.xmit_cnt)
- return;
-
-
- /* This routine is an order of magnitude simpler than the specialix
- version. One of the disadvantages is that this version will send
- an incomplete packet (usually 64 bytes instead of 72) once for
- every 4k worth of data. Let's just say that this won't influence
- performance significantly..... */
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- while (can_add_transmit(&PacketP, PortP)) {
- c = PortP->gs.xmit_cnt;
- if (c > PKT_MAX_DATA_LEN)
- c = PKT_MAX_DATA_LEN;
-
- /* Don't copy past the end of the source buffer */
- if (c > SERIAL_XMIT_SIZE - PortP->gs.xmit_tail)
- c = SERIAL_XMIT_SIZE - PortP->gs.xmit_tail;
-
- {
- int t;
- t = (c > 10) ? 10 : c;
-
- rio_dprintk(RIO_DEBUG_INTR, "rio: tx port %d: copying %d chars: %s - %s\n", PortP->PortNum, c, firstchars(PortP->gs.xmit_buf + PortP->gs.xmit_tail, t), firstchars(PortP->gs.xmit_buf + PortP->gs.xmit_tail + c - t, t));
- }
- /* If for one reason or another, we can't copy more data,
- we're done! */
- if (c == 0)
- break;
-
- rio_memcpy_toio(PortP->HostP->Caddr, PacketP->data, PortP->gs.xmit_buf + PortP->gs.xmit_tail, c);
- /* udelay (1); */
-
- writeb(c, &(PacketP->len));
- if (!(PortP->State & RIO_DELETED)) {
- add_transmit(PortP);
- /*
- ** Count chars tx'd for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->txchars += c;
- }
- PortP->gs.xmit_tail = (PortP->gs.xmit_tail + c) & (SERIAL_XMIT_SIZE - 1);
- PortP->gs.xmit_cnt -= c;
- }
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-
- if (PortP->gs.xmit_cnt <= (PortP->gs.wakeup_chars + 2 * PKT_MAX_DATA_LEN))
- tty_wakeup(PortP->gs.port.tty);
-
-}
-
-
-/*
-** RIO Host Service routine. Does all the work traditionally associated with an
-** interrupt.
-*/
-static int RupIntr;
-static int RxIntr;
-static int TxIntr;
-
-void RIOServiceHost(struct rio_info *p, struct Host *HostP)
-{
- rio_spin_lock(&HostP->HostLock);
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
- static int t = 0;
- rio_spin_unlock(&HostP->HostLock);
- if ((t++ % 200) == 0)
- rio_dprintk(RIO_DEBUG_INTR, "Interrupt but host not running. flags=%x.\n", (int) HostP->Flags);
- return;
- }
- rio_spin_unlock(&HostP->HostLock);
-
- if (readw(&HostP->ParmMapP->rup_intr)) {
- writew(0, &HostP->ParmMapP->rup_intr);
- p->RIORupCount++;
- RupIntr++;
- rio_dprintk(RIO_DEBUG_INTR, "rio: RUP interrupt on host %Zd\n", HostP - p->RIOHosts);
- RIOPollHostCommands(p, HostP);
- }
-
- if (readw(&HostP->ParmMapP->rx_intr)) {
- int port;
-
- writew(0, &HostP->ParmMapP->rx_intr);
- p->RIORxCount++;
- RxIntr++;
-
- rio_dprintk(RIO_DEBUG_INTR, "rio: RX interrupt on host %Zd\n", HostP - p->RIOHosts);
- /*
- ** Loop through every port. If the port is mapped into
- ** the system ( i.e. has /dev/ttyXXXX associated ) then it is
- ** worth checking. If the port isn't open, grab any packets
- ** hanging on its receive queue and stuff them on the free
- ** list; check for commands on the way.
- */
- for (port = p->RIOFirstPortsBooted; port < p->RIOLastPortsBooted + PORTS_PER_RTA; port++) {
- struct Port *PortP = p->RIOPortp[port];
- struct tty_struct *ttyP;
- struct PKT __iomem *PacketP;
-
- /*
- ** not mapped in - most of the RIOPortp[] information
- ** has not been set up!
- ** Optimise: ports come in bundles of eight.
- */
- if (!PortP->Mapped) {
- port += 7;
- continue; /* with the next port */
- }
-
- /*
- ** If the host board isn't THIS host board, check the next one.
- ** optimise: ports come in bundles of eight.
- */
- if (PortP->HostP != HostP) {
- port += 7;
- continue;
- }
-
- /*
- ** Let us see - is the port open? If not, then don't service it.
- */
- if (!(PortP->PortState & PORT_ISOPEN)) {
- continue;
- }
-
- /*
- ** find corresponding tty structure. The process of mapping
- ** the ports puts these here.
- */
- ttyP = PortP->gs.port.tty;
-
- /*
- ** Lock the port before we begin working on it.
- */
- rio_spin_lock(&PortP->portSem);
-
- /*
- ** Process received data if there is any.
- */
- if (can_remove_receive(&PacketP, PortP))
- RIOReceive(p, PortP);
-
- /*
- ** If there is no data left to be read from the port, and
- ** it's handshake bit is set, then we must clear the handshake,
- ** so that that downstream RTA is re-enabled.
- */
- if (!can_remove_receive(&PacketP, PortP) && (readw(&PortP->PhbP->handshake) == PHB_HANDSHAKE_SET)) {
- /*
- ** MAGIC! ( Basically, handshake the RX buffer, so that
- ** the RTAs upstream can be re-enabled. )
- */
- rio_dprintk(RIO_DEBUG_INTR, "Set RX handshake bit\n");
- writew(PHB_HANDSHAKE_SET | PHB_HANDSHAKE_RESET, &PortP->PhbP->handshake);
- }
- rio_spin_unlock(&PortP->portSem);
- }
- }
-
- if (readw(&HostP->ParmMapP->tx_intr)) {
- int port;
-
- writew(0, &HostP->ParmMapP->tx_intr);
-
- p->RIOTxCount++;
- TxIntr++;
- rio_dprintk(RIO_DEBUG_INTR, "rio: TX interrupt on host %Zd\n", HostP - p->RIOHosts);
-
- /*
- ** Loop through every port.
- ** If the port is mapped into the system ( i.e. has /dev/ttyXXXX
- ** associated ) then it is worth checking.
- */
- for (port = p->RIOFirstPortsBooted; port < p->RIOLastPortsBooted + PORTS_PER_RTA; port++) {
- struct Port *PortP = p->RIOPortp[port];
- struct tty_struct *ttyP;
- struct PKT __iomem *PacketP;
-
- /*
- ** not mapped in - most of the RIOPortp[] information
- ** has not been set up!
- */
- if (!PortP->Mapped) {
- port += 7;
- continue; /* with the next port */
- }
-
- /*
- ** If the host board isn't running, then its data structures
- ** are no use to us - continue quietly.
- */
- if (PortP->HostP != HostP) {
- port += 7;
- continue; /* with the next port */
- }
-
- /*
- ** Let us see - is the port open? If not, then don't service it.
- */
- if (!(PortP->PortState & PORT_ISOPEN)) {
- continue;
- }
-
- rio_dprintk(RIO_DEBUG_INTR, "rio: Looking into port %d.\n", port);
- /*
- ** Lock the port before we begin working on it.
- */
- rio_spin_lock(&PortP->portSem);
-
- /*
- ** If we can't add anything to the transmit queue, then
- ** we need do none of this processing.
- */
- if (!can_add_transmit(&PacketP, PortP)) {
- rio_dprintk(RIO_DEBUG_INTR, "Can't add to port, so skipping.\n");
- rio_spin_unlock(&PortP->portSem);
- continue;
- }
-
- /*
- ** find corresponding tty structure. The process of mapping
- ** the ports puts these here.
- */
- ttyP = PortP->gs.port.tty;
- /* If ttyP is NULL, the port is getting closed. Forget about it. */
- if (!ttyP) {
- rio_dprintk(RIO_DEBUG_INTR, "no tty, so skipping.\n");
- rio_spin_unlock(&PortP->portSem);
- continue;
- }
- /*
- ** If there is more room available we start up the transmit
- ** data process again. This can be direct I/O, if the cookmode
- ** is set to COOK_RAW or COOK_MEDIUM, or will be a call to the
- ** riotproc( T_OUTPUT ) if we are in COOK_WELL mode, to fetch
- ** characters via the line discipline. We must always call
- ** the line discipline,
- ** so that user input characters can be echoed correctly.
- **
- ** ++++ Update +++++
- ** With the advent of double buffering, we now see if
- ** TxBufferOut-In is non-zero. If so, then we copy a packet
- ** to the output place, and set it going. If this empties
- ** the buffer, then we must issue a wakeup( ) on OUT.
- ** If it frees space in the buffer then we must issue
- ** a wakeup( ) on IN.
- **
- ** ++++ Extra! Extra! If PortP->WflushFlag is set, then we
- ** have to send a WFLUSH command down the PHB, to mark the
- ** end point of a WFLUSH. We also need to clear out any
- ** data from the double buffer! ( note that WflushFlag is a
- ** *count* of the number of WFLUSH commands outstanding! )
- **
- ** ++++ And there's more!
- ** If an RTA is powered off, then on again, and rebooted,
- ** whilst it has ports open, then we need to re-open the ports.
- ** ( reasonable enough ). We can't do this when we spot the
- ** re-boot, in interrupt time, because the queue is probably
- ** full. So, when we come in here, we need to test if any
- ** ports are in this condition, and re-open the port before
- ** we try to send any more data to it. Now, the re-booted
- ** RTA will be discarding packets from the PHB until it
- ** receives this open packet, but don't worry tooo much
- ** about that. The one thing that is interesting is the
- ** combination of this effect and the WFLUSH effect!
- */
- /* For now don't handle RTA reboots. -- REW.
- Reenabled. Otherwise RTA reboots didn't work. Duh. -- REW */
- if (PortP->MagicFlags) {
- if (PortP->MagicFlags & MAGIC_REBOOT) {
- /*
- ** well, the RTA has been rebooted, and there is room
- ** on its queue to add the open packet that is required.
- **
- ** The messy part of this line is trying to decide if
- ** we need to call the Param function as a tty or as
- ** a modem.
- ** DONT USE CLOCAL AS A TEST FOR THIS!
- **
- ** If we can't param the port, then move on to the
- ** next port.
- */
- PortP->InUse = NOT_INUSE;
-
- rio_spin_unlock(&PortP->portSem);
- if (RIOParam(PortP, RIOC_OPEN, ((PortP->Cor2Copy & (RIOC_COR2_RTSFLOW | RIOC_COR2_CTSFLOW)) == (RIOC_COR2_RTSFLOW | RIOC_COR2_CTSFLOW)) ? 1 : 0, DONT_SLEEP) == RIO_FAIL)
- continue; /* with next port */
- rio_spin_lock(&PortP->portSem);
- PortP->MagicFlags &= ~MAGIC_REBOOT;
- }
-
- /*
- ** As mentioned above, this is a tacky hack to cope
- ** with WFLUSH
- */
- if (PortP->WflushFlag) {
- rio_dprintk(RIO_DEBUG_INTR, "Want to WFLUSH mark this port\n");
-
- if (PortP->InUse)
- rio_dprintk(RIO_DEBUG_INTR, "FAILS - PORT IS IN USE\n");
- }
-
- while (PortP->WflushFlag && can_add_transmit(&PacketP, PortP) && (PortP->InUse == NOT_INUSE)) {
- int p;
- struct PktCmd __iomem *PktCmdP;
-
- rio_dprintk(RIO_DEBUG_INTR, "Add WFLUSH marker to data queue\n");
- /*
- ** make it look just like a WFLUSH command
- */
- PktCmdP = (struct PktCmd __iomem *) &PacketP->data[0];
-
- writeb(RIOC_WFLUSH, &PktCmdP->Command);
-
- p = PortP->HostPort % (u16) PORTS_PER_RTA;
-
- /*
- ** If second block of ports for 16 port RTA, add 8
- ** to index 8-15.
- */
- if (PortP->SecondBlock)
- p += PORTS_PER_RTA;
-
- writeb(p, &PktCmdP->PhbNum);
-
- /*
- ** to make debuggery easier
- */
- writeb('W', &PacketP->data[2]);
- writeb('F', &PacketP->data[3]);
- writeb('L', &PacketP->data[4]);
- writeb('U', &PacketP->data[5]);
- writeb('S', &PacketP->data[6]);
- writeb('H', &PacketP->data[7]);
- writeb(' ', &PacketP->data[8]);
- writeb('0' + PortP->WflushFlag, &PacketP->data[9]);
- writeb(' ', &PacketP->data[10]);
- writeb(' ', &PacketP->data[11]);
- writeb('\0', &PacketP->data[12]);
-
- /*
- ** its two bytes long!
- */
- writeb(PKT_CMD_BIT | 2, &PacketP->len);
-
- /*
- ** queue it!
- */
- if (!(PortP->State & RIO_DELETED)) {
- add_transmit(PortP);
- /*
- ** Count chars tx'd for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->txchars += 2;
- }
-
- if (--(PortP->WflushFlag) == 0) {
- PortP->MagicFlags &= ~MAGIC_FLUSH;
- }
-
- rio_dprintk(RIO_DEBUG_INTR, "Wflush count now stands at %d\n", PortP->WflushFlag);
- }
- if (PortP->MagicFlags & MORE_OUTPUT_EYGOR) {
- if (PortP->MagicFlags & MAGIC_FLUSH) {
- PortP->MagicFlags |= MORE_OUTPUT_EYGOR;
- } else {
- if (!can_add_transmit(&PacketP, PortP)) {
- rio_spin_unlock(&PortP->portSem);
- continue;
- }
- rio_spin_unlock(&PortP->portSem);
- RIOTxEnable((char *) PortP);
- rio_spin_lock(&PortP->portSem);
- PortP->MagicFlags &= ~MORE_OUTPUT_EYGOR;
- }
- }
- }
-
-
- /*
- ** If we can't add anything to the transmit queue, then
- ** we need do none of the remaining processing.
- */
- if (!can_add_transmit(&PacketP, PortP)) {
- rio_spin_unlock(&PortP->portSem);
- continue;
- }
-
- rio_spin_unlock(&PortP->portSem);
- RIOTxEnable((char *) PortP);
- }
- }
-}
-
-/*
-** Routine for handling received data for tty drivers
-*/
-static void RIOReceive(struct rio_info *p, struct Port *PortP)
-{
- struct tty_struct *TtyP;
- unsigned short transCount;
- struct PKT __iomem *PacketP;
- register unsigned int DataCnt;
- unsigned char __iomem *ptr;
- unsigned char *buf;
- int copied = 0;
-
- static int intCount, RxIntCnt;
-
- /*
- ** The receive data process is to remove packets from the
- ** PHB until there aren't any more or the current cblock
- ** is full. When this occurs, there will be some left over
- ** data in the packet, that we must do something with.
- ** As we haven't unhooked the packet from the read list
- ** yet, we can just leave the packet there, having first
- ** made a note of how far we got. This means that we need
- ** a pointer per port saying where we start taking the
- ** data from - this will normally be zero, but when we
- ** run out of space it will be set to the offset of the
- ** next byte to copy from the packet data area. The packet
- ** length field is decremented by the number of bytes that
- ** we successfully removed from the packet. When this reaches
- ** zero, we reset the offset pointer to be zero, and free
- ** the packet from the front of the queue.
- */
-
- intCount++;
-
- TtyP = PortP->gs.port.tty;
- if (!TtyP) {
- rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: tty is null. \n");
- return;
- }
-
- if (PortP->State & RIO_THROTTLE_RX) {
- rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: Throttled. Can't handle more input.\n");
- return;
- }
-
- if (PortP->State & RIO_DELETED) {
- while (can_remove_receive(&PacketP, PortP)) {
- remove_receive(PortP);
- put_free_end(PortP->HostP, PacketP);
- }
- } else {
- /*
- ** loop, just so long as:
- ** i ) there's some data ( i.e. can_remove_receive )
- ** ii ) we haven't been blocked
- ** iii ) there's somewhere to put the data
- ** iv ) we haven't outstayed our welcome
- */
- transCount = 1;
- while (can_remove_receive(&PacketP, PortP)
- && transCount) {
- RxIntCnt++;
-
- /*
- ** check that it is not a command!
- */
- if (readb(&PacketP->len) & PKT_CMD_BIT) {
- rio_dprintk(RIO_DEBUG_INTR, "RIO: unexpected command packet received on PHB\n");
- /* rio_dprint(RIO_DEBUG_INTR, (" sysport = %d\n", p->RIOPortp->PortNum)); */
- rio_dprintk(RIO_DEBUG_INTR, " dest_unit = %d\n", readb(&PacketP->dest_unit));
- rio_dprintk(RIO_DEBUG_INTR, " dest_port = %d\n", readb(&PacketP->dest_port));
- rio_dprintk(RIO_DEBUG_INTR, " src_unit = %d\n", readb(&PacketP->src_unit));
- rio_dprintk(RIO_DEBUG_INTR, " src_port = %d\n", readb(&PacketP->src_port));
- rio_dprintk(RIO_DEBUG_INTR, " len = %d\n", readb(&PacketP->len));
- rio_dprintk(RIO_DEBUG_INTR, " control = %d\n", readb(&PacketP->control));
- rio_dprintk(RIO_DEBUG_INTR, " csum = %d\n", readw(&PacketP->csum));
- rio_dprintk(RIO_DEBUG_INTR, " data bytes: ");
- for (DataCnt = 0; DataCnt < PKT_MAX_DATA_LEN; DataCnt++)
- rio_dprintk(RIO_DEBUG_INTR, "%d\n", readb(&PacketP->data[DataCnt]));
- remove_receive(PortP);
- put_free_end(PortP->HostP, PacketP);
- continue; /* with next packet */
- }
-
- /*
- ** How many characters can we move 'upstream' ?
- **
- ** Determine the minimum of the amount of data
- ** available and the amount of space in which to
- ** put it.
- **
- ** 1. Get the packet length by masking 'len'
- ** for only the length bits.
- ** 2. Available space is [buffer size] - [space used]
- **
- ** Transfer count is the minimum of packet length
- ** and available space.
- */
-
- transCount = tty_buffer_request_room(TtyP, readb(&PacketP->len) & PKT_LEN_MASK);
- rio_dprintk(RIO_DEBUG_REC, "port %d: Copy %d bytes\n", PortP->PortNum, transCount);
- /*
- ** To use the following 'kkprintfs' for debugging - change the '#undef'
- ** to '#define', (this is the only place ___DEBUG_IT___ occurs in the
- ** driver).
- */
- ptr = (unsigned char __iomem *) PacketP->data + PortP->RxDataStart;
-
- tty_prepare_flip_string(TtyP, &buf, transCount);
- rio_memcpy_fromio(buf, ptr, transCount);
- PortP->RxDataStart += transCount;
- writeb(readb(&PacketP->len)-transCount, &PacketP->len);
- copied += transCount;
-
-
-
- if (readb(&PacketP->len) == 0) {
- /*
- ** If we have emptied the packet, then we can
- ** free it, and reset the start pointer for
- ** the next packet.
- */
- remove_receive(PortP);
- put_free_end(PortP->HostP, PacketP);
- PortP->RxDataStart = 0;
- }
- }
- }
- if (copied) {
- rio_dprintk(RIO_DEBUG_REC, "port %d: pushing tty flip buffer: %d total bytes copied.\n", PortP->PortNum, copied);
- tty_flip_buffer_push(TtyP);
- }
-
- return;
-}
-
diff --git a/drivers/char/rio/rioioctl.h b/drivers/char/rio/rioioctl.h
deleted file mode 100644
index e8af5b30519..00000000000
--- a/drivers/char/rio/rioioctl.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioioctl.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:13
-** Retrieved : 11/6/98 11:34:22
-**
-** ident @(#)rioioctl.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rioioctl_h__
-#define __rioioctl_h__
-
-/*
-** RIO device driver - user ioctls and associated structures.
-*/
-
-struct portStats {
- int port;
- int gather;
- unsigned long txchars;
- unsigned long rxchars;
- unsigned long opens;
- unsigned long closes;
- unsigned long ioctls;
-};
-
-#define RIOC ('R'<<8)|('i'<<16)|('o'<<24)
-
-#define RIO_QUICK_CHECK (RIOC | 105)
-#define RIO_GATHER_PORT_STATS (RIOC | 193)
-#define RIO_RESET_PORT_STATS (RIOC | 194)
-#define RIO_GET_PORT_STATS (RIOC | 195)
-
-#endif /* __rioioctl_h__ */
diff --git a/drivers/char/rio/rioparam.c b/drivers/char/rio/rioparam.c
deleted file mode 100644
index 6415f3f32a7..00000000000
--- a/drivers/char/rio/rioparam.c
+++ /dev/null
@@ -1,663 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioparam.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:45
-** Retrieved : 11/6/98 10:33:50
-**
-** ident @(#)rioparam.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "param.h"
-
-
-
-/*
-** The Scam, based on email from jeremyr@bugs.specialix.co.uk....
-**
-** To send a command on a particular port, you put a packet with the
-** command bit set onto the port. The command bit is in the len field,
-** and gets ORed in with the actual byte count.
-**
-** When you send a packet with the command bit set the first
-** data byte (data[0]) is interpreted as the command to execute.
-** It also governs what data structure overlay should accompany the packet.
-** Commands are defined in cirrus/cirrus.h
-**
-** If you want the command to pre-emt data already on the queue for the
-** port, set the pre-emptive bit in conjunction with the command bit.
-** It is not defined what will happen if you set the preemptive bit
-** on a packet that is NOT a command.
-**
-** Pre-emptive commands should be queued at the head of the queue using
-** add_start(), whereas normal commands and data are enqueued using
-** add_end().
-**
-** Most commands do not use the remaining bytes in the data array. The
-** exceptions are OPEN MOPEN and CONFIG. (NB. As with the SI CONFIG and
-** OPEN are currently analogous). With these three commands the following
-** 11 data bytes are all used to pass config information such as baud rate etc.
-** The fields are also defined in cirrus.h. Some contain straightforward
-** information such as the transmit XON character. Two contain the transmit and
-** receive baud rates respectively. For most baud rates there is a direct
-** mapping between the rates defined in <sys/termio.h> and the byte in the
-** packet. There are additional (non UNIX-standard) rates defined in
-** /u/dos/rio/cirrus/h/brates.h.
-**
-** The rest of the data fields contain approximations to the Cirrus registers
-** that are used to program number of bits etc. Each registers bit fields is
-** defined in cirrus.h.
-**
-** NB. Only use those bits that are defined as being driver specific
-** or common to the RTA and the driver.
-**
-** All commands going from RTA->Host will be dealt with by the Host code - you
-** will never see them. As with the SI there will be three fields to look out
-** for in each phb (not yet defined - needs defining a.s.a.p).
-**
-** modem_status - current state of handshake pins.
-**
-** port_status - current port status - equivalent to hi_stat for SI, indicates
-** if port is IDLE_OPEN, IDLE_CLOSED etc.
-**
-** break_status - bit X set if break has been received.
-**
-** Happy hacking.
-**
-*/
-
-/*
-** RIOParam is used to open or configure a port. You pass it a PortP,
-** which will have a tty struct attached to it. You also pass a command,
-** either OPEN or CONFIG. The port's setup is taken from the t_ fields
-** of the tty struct inside the PortP, and the port is either opened
-** or re-configured. You must also tell RIOParam if the device is a modem
-** device or not (i.e. top bit of minor number set or clear - take special
-** care when deciding on this!).
-** RIOParam neither flushes nor waits for drain, and is NOT preemptive.
-**
-** RIOParam assumes it will be called at splrio(), and also assumes
-** that CookMode is set correctly in the port structure.
-**
-** NB. for MPX
-** tty lock must NOT have been previously acquired.
-*/
-int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag)
-{
- struct tty_struct *TtyP;
- int retval;
- struct phb_param __iomem *phb_param_ptr;
- struct PKT __iomem *PacketP;
- int res;
- u8 Cor1 = 0, Cor2 = 0, Cor4 = 0, Cor5 = 0;
- u8 TxXon = 0, TxXoff = 0, RxXon = 0, RxXoff = 0;
- u8 LNext = 0, TxBaud = 0, RxBaud = 0;
- int retries = 0xff;
- unsigned long flags;
-
- func_enter();
-
- TtyP = PortP->gs.port.tty;
-
- rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP);
-
- if (!TtyP) {
- rio_dprintk(RIO_DEBUG_PARAM, "Can't call rioparam with null tty.\n");
-
- func_exit();
-
- return RIO_FAIL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- if (cmd == RIOC_OPEN) {
- /*
- ** If the port is set to store or lock the parameters, and it is
- ** paramed with OPEN, we want to restore the saved port termio, but
- ** only if StoredTermio has been saved, i.e. NOT 1st open after reboot.
- */
- }
-
- /*
- ** wait for space
- */
- while (!(res = can_add_transmit(&PacketP, PortP)) || (PortP->InUse != NOT_INUSE)) {
- if (retries-- <= 0) {
- break;
- }
- if (PortP->InUse != NOT_INUSE) {
- rio_dprintk(RIO_DEBUG_PARAM, "Port IN_USE for pre-emptive command\n");
- }
-
- if (!res) {
- rio_dprintk(RIO_DEBUG_PARAM, "Port has no space on transmit queue\n");
- }
-
- if (SleepFlag != OK_TO_SLEEP) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
-
- return RIO_FAIL;
- }
-
- rio_dprintk(RIO_DEBUG_PARAM, "wait for can_add_transmit\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- retval = RIODelay(PortP, HUNDRED_MS);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- if (retval == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_PARAM, "wait for can_add_transmit broken by signal\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
- return -EINTR;
- }
- if (PortP->State & RIO_DELETED) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
- return 0;
- }
- }
-
- if (!res) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
-
- return RIO_FAIL;
- }
-
- rio_dprintk(RIO_DEBUG_PARAM, "can_add_transmit() returns %x\n", res);
- rio_dprintk(RIO_DEBUG_PARAM, "Packet is %p\n", PacketP);
-
- phb_param_ptr = (struct phb_param __iomem *) PacketP->data;
-
-
- switch (TtyP->termios->c_cflag & CSIZE) {
- case CS5:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "5 bit data\n");
- Cor1 |= RIOC_COR1_5BITS;
- break;
- }
- case CS6:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "6 bit data\n");
- Cor1 |= RIOC_COR1_6BITS;
- break;
- }
- case CS7:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "7 bit data\n");
- Cor1 |= RIOC_COR1_7BITS;
- break;
- }
- case CS8:
- {
- rio_dprintk(RIO_DEBUG_PARAM, "8 bit data\n");
- Cor1 |= RIOC_COR1_8BITS;
- break;
- }
- }
-
- if (TtyP->termios->c_cflag & CSTOPB) {
- rio_dprintk(RIO_DEBUG_PARAM, "2 stop bits\n");
- Cor1 |= RIOC_COR1_2STOP;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "1 stop bit\n");
- Cor1 |= RIOC_COR1_1STOP;
- }
-
- if (TtyP->termios->c_cflag & PARENB) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable parity\n");
- Cor1 |= RIOC_COR1_NORMAL;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Disable parity\n");
- Cor1 |= RIOC_COR1_NOP;
- }
- if (TtyP->termios->c_cflag & PARODD) {
- rio_dprintk(RIO_DEBUG_PARAM, "Odd parity\n");
- Cor1 |= RIOC_COR1_ODD;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Even parity\n");
- Cor1 |= RIOC_COR1_EVEN;
- }
-
- /*
- ** COR 2
- */
- if (TtyP->termios->c_iflag & IXON) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable start/stop output control\n");
- Cor2 |= RIOC_COR2_IXON;
- } else {
- if (PortP->Config & RIO_IXON) {
- rio_dprintk(RIO_DEBUG_PARAM, "Force enable start/stop output control\n");
- Cor2 |= RIOC_COR2_IXON;
- } else
- rio_dprintk(RIO_DEBUG_PARAM, "IXON has been disabled.\n");
- }
-
- if (TtyP->termios->c_iflag & IXANY) {
- if (PortP->Config & RIO_IXANY) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable any key to restart output\n");
- Cor2 |= RIOC_COR2_IXANY;
- } else
- rio_dprintk(RIO_DEBUG_PARAM, "IXANY has been disabled due to sanity reasons.\n");
- }
-
- if (TtyP->termios->c_iflag & IXOFF) {
- rio_dprintk(RIO_DEBUG_PARAM, "Enable start/stop input control 2\n");
- Cor2 |= RIOC_COR2_IXOFF;
- }
-
- if (TtyP->termios->c_cflag & HUPCL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Hangup on last close\n");
- Cor2 |= RIOC_COR2_HUPCL;
- }
-
- if (C_CRTSCTS(TtyP)) {
- rio_dprintk(RIO_DEBUG_PARAM, "Rx hardware flow control enabled\n");
- Cor2 |= RIOC_COR2_CTSFLOW;
- Cor2 |= RIOC_COR2_RTSFLOW;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Rx hardware flow control disabled\n");
- Cor2 &= ~RIOC_COR2_CTSFLOW;
- Cor2 &= ~RIOC_COR2_RTSFLOW;
- }
-
-
- if (TtyP->termios->c_cflag & CLOCAL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Local line\n");
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Possible Modem line\n");
- }
-
- /*
- ** COR 4 (there is no COR 3)
- */
- if (TtyP->termios->c_iflag & IGNBRK) {
- rio_dprintk(RIO_DEBUG_PARAM, "Ignore break condition\n");
- Cor4 |= RIOC_COR4_IGNBRK;
- }
- if (!(TtyP->termios->c_iflag & BRKINT)) {
- rio_dprintk(RIO_DEBUG_PARAM, "Break generates NULL condition\n");
- Cor4 |= RIOC_COR4_NBRKINT;
- } else {
- rio_dprintk(RIO_DEBUG_PARAM, "Interrupt on break condition\n");
- }
-
- if (TtyP->termios->c_iflag & INLCR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map newline to carriage return on input\n");
- Cor4 |= RIOC_COR4_INLCR;
- }
-
- if (TtyP->termios->c_iflag & IGNCR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Ignore carriage return on input\n");
- Cor4 |= RIOC_COR4_IGNCR;
- }
-
- if (TtyP->termios->c_iflag & ICRNL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map carriage return to newline on input\n");
- Cor4 |= RIOC_COR4_ICRNL;
- }
- if (TtyP->termios->c_iflag & IGNPAR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Ignore characters with parity errors\n");
- Cor4 |= RIOC_COR4_IGNPAR;
- }
- if (TtyP->termios->c_iflag & PARMRK) {
- rio_dprintk(RIO_DEBUG_PARAM, "Mark parity errors\n");
- Cor4 |= RIOC_COR4_PARMRK;
- }
-
- /*
- ** Set the RAISEMOD flag to ensure that the modem lines are raised
- ** on reception of a config packet.
- ** The download code handles the zero baud condition.
- */
- Cor4 |= RIOC_COR4_RAISEMOD;
-
- /*
- ** COR 5
- */
-
- Cor5 = RIOC_COR5_CMOE;
-
- /*
- ** Set to monitor tbusy/tstop (or not).
- */
-
- if (PortP->MonitorTstate)
- Cor5 |= RIOC_COR5_TSTATE_ON;
- else
- Cor5 |= RIOC_COR5_TSTATE_OFF;
-
- /*
- ** Could set LNE here if you wanted LNext processing. SVR4 will use it.
- */
- if (TtyP->termios->c_iflag & ISTRIP) {
- rio_dprintk(RIO_DEBUG_PARAM, "Strip input characters\n");
- if (!(PortP->State & RIO_TRIAD_MODE)) {
- Cor5 |= RIOC_COR5_ISTRIP;
- }
- }
-
- if (TtyP->termios->c_oflag & ONLCR) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map newline to carriage-return, newline on output\n");
- if (PortP->CookMode == COOK_MEDIUM)
- Cor5 |= RIOC_COR5_ONLCR;
- }
- if (TtyP->termios->c_oflag & OCRNL) {
- rio_dprintk(RIO_DEBUG_PARAM, "Map carriage return to newline on output\n");
- if (PortP->CookMode == COOK_MEDIUM)
- Cor5 |= RIOC_COR5_OCRNL;
- }
- if ((TtyP->termios->c_oflag & TABDLY) == TAB3) {
- rio_dprintk(RIO_DEBUG_PARAM, "Tab delay 3 set\n");
- if (PortP->CookMode == COOK_MEDIUM)
- Cor5 |= RIOC_COR5_TAB3;
- }
-
- /*
- ** Flow control bytes.
- */
- TxXon = TtyP->termios->c_cc[VSTART];
- TxXoff = TtyP->termios->c_cc[VSTOP];
- RxXon = TtyP->termios->c_cc[VSTART];
- RxXoff = TtyP->termios->c_cc[VSTOP];
- /*
- ** LNEXT byte
- */
- LNext = 0;
-
- /*
- ** Baud rate bytes
- */
- rio_dprintk(RIO_DEBUG_PARAM, "Mapping of rx/tx baud %x (%x)\n", TtyP->termios->c_cflag, CBAUD);
-
- switch (TtyP->termios->c_cflag & CBAUD) {
-#define e(b) case B ## b : RxBaud = TxBaud = RIO_B ## b ;break
- e(50);
- e(75);
- e(110);
- e(134);
- e(150);
- e(200);
- e(300);
- e(600);
- e(1200);
- e(1800);
- e(2400);
- e(4800);
- e(9600);
- e(19200);
- e(38400);
- e(57600);
- e(115200); /* e(230400);e(460800); e(921600); */
- }
-
- rio_dprintk(RIO_DEBUG_PARAM, "tx baud 0x%x, rx baud 0x%x\n", TxBaud, RxBaud);
-
-
- /*
- ** Leftovers
- */
- if (TtyP->termios->c_cflag & CREAD)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable receiver\n");
-#ifdef RCV1EN
- if (TtyP->termios->c_cflag & RCV1EN)
- rio_dprintk(RIO_DEBUG_PARAM, "RCV1EN (?)\n");
-#endif
-#ifdef XMT1EN
- if (TtyP->termios->c_cflag & XMT1EN)
- rio_dprintk(RIO_DEBUG_PARAM, "XMT1EN (?)\n");
-#endif
- if (TtyP->termios->c_lflag & ISIG)
- rio_dprintk(RIO_DEBUG_PARAM, "Input character signal generating enabled\n");
- if (TtyP->termios->c_lflag & ICANON)
- rio_dprintk(RIO_DEBUG_PARAM, "Canonical input: erase and kill enabled\n");
- if (TtyP->termios->c_lflag & XCASE)
- rio_dprintk(RIO_DEBUG_PARAM, "Canonical upper/lower presentation\n");
- if (TtyP->termios->c_lflag & ECHO)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable input echo\n");
- if (TtyP->termios->c_lflag & ECHOE)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable echo erase\n");
- if (TtyP->termios->c_lflag & ECHOK)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable echo kill\n");
- if (TtyP->termios->c_lflag & ECHONL)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable echo newline\n");
- if (TtyP->termios->c_lflag & NOFLSH)
- rio_dprintk(RIO_DEBUG_PARAM, "Disable flush after interrupt or quit\n");
-#ifdef TOSTOP
- if (TtyP->termios->c_lflag & TOSTOP)
- rio_dprintk(RIO_DEBUG_PARAM, "Send SIGTTOU for background output\n");
-#endif
-#ifdef XCLUDE
- if (TtyP->termios->c_lflag & XCLUDE)
- rio_dprintk(RIO_DEBUG_PARAM, "Exclusive use of this line\n");
-#endif
- if (TtyP->termios->c_iflag & IUCLC)
- rio_dprintk(RIO_DEBUG_PARAM, "Map uppercase to lowercase on input\n");
- if (TtyP->termios->c_oflag & OPOST)
- rio_dprintk(RIO_DEBUG_PARAM, "Enable output post-processing\n");
- if (TtyP->termios->c_oflag & OLCUC)
- rio_dprintk(RIO_DEBUG_PARAM, "Map lowercase to uppercase on output\n");
- if (TtyP->termios->c_oflag & ONOCR)
- rio_dprintk(RIO_DEBUG_PARAM, "No carriage return output at column 0\n");
- if (TtyP->termios->c_oflag & ONLRET)
- rio_dprintk(RIO_DEBUG_PARAM, "Newline performs carriage return function\n");
- if (TtyP->termios->c_oflag & OFILL)
- rio_dprintk(RIO_DEBUG_PARAM, "Use fill characters for delay\n");
- if (TtyP->termios->c_oflag & OFDEL)
- rio_dprintk(RIO_DEBUG_PARAM, "Fill character is DEL\n");
- if (TtyP->termios->c_oflag & NLDLY)
- rio_dprintk(RIO_DEBUG_PARAM, "Newline delay set\n");
- if (TtyP->termios->c_oflag & CRDLY)
- rio_dprintk(RIO_DEBUG_PARAM, "Carriage return delay set\n");
- if (TtyP->termios->c_oflag & TABDLY)
- rio_dprintk(RIO_DEBUG_PARAM, "Tab delay set\n");
- /*
- ** These things are kind of useful in a later life!
- */
- PortP->Cor2Copy = Cor2;
-
- if (PortP->State & RIO_DELETED) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
-
- return RIO_FAIL;
- }
-
- /*
- ** Actually write the info into the packet to be sent
- */
- writeb(cmd, &phb_param_ptr->Cmd);
- writeb(Cor1, &phb_param_ptr->Cor1);
- writeb(Cor2, &phb_param_ptr->Cor2);
- writeb(Cor4, &phb_param_ptr->Cor4);
- writeb(Cor5, &phb_param_ptr->Cor5);
- writeb(TxXon, &phb_param_ptr->TxXon);
- writeb(RxXon, &phb_param_ptr->RxXon);
- writeb(TxXoff, &phb_param_ptr->TxXoff);
- writeb(RxXoff, &phb_param_ptr->RxXoff);
- writeb(LNext, &phb_param_ptr->LNext);
- writeb(TxBaud, &phb_param_ptr->TxBaud);
- writeb(RxBaud, &phb_param_ptr->RxBaud);
-
- /*
- ** Set the length/command field
- */
- writeb(12 | PKT_CMD_BIT, &PacketP->len);
-
- /*
- ** The packet is formed - now, whack it off
- ** to its final destination:
- */
- add_transmit(PortP);
- /*
- ** Count characters transmitted for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->txchars += 12;
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-
- rio_dprintk(RIO_DEBUG_PARAM, "add_transmit returned.\n");
- /*
- ** job done.
- */
- func_exit();
-
- return 0;
-}
-
-
-/*
-** We can add another packet to a transmit queue if the packet pointer pointed
-** to by the TxAdd pointer has PKT_IN_USE clear in its address.
-*/
-int can_add_transmit(struct PKT __iomem **PktP, struct Port *PortP)
-{
- struct PKT __iomem *tp;
-
- *PktP = tp = (struct PKT __iomem *) RIO_PTR(PortP->Caddr, readw(PortP->TxAdd));
-
- return !((unsigned long) tp & PKT_IN_USE);
-}
-
-/*
-** To add a packet to the queue, you set the PKT_IN_USE bit in the address,
-** and then move the TxAdd pointer along one position to point to the next
-** packet pointer. You must wrap the pointer from the end back to the start.
-*/
-void add_transmit(struct Port *PortP)
-{
- if (readw(PortP->TxAdd) & PKT_IN_USE) {
- rio_dprintk(RIO_DEBUG_PARAM, "add_transmit: Packet has been stolen!");
- }
- writew(readw(PortP->TxAdd) | PKT_IN_USE, PortP->TxAdd);
- PortP->TxAdd = (PortP->TxAdd == PortP->TxEnd) ? PortP->TxStart : PortP->TxAdd + 1;
- writew(RIO_OFF(PortP->Caddr, PortP->TxAdd), &PortP->PhbP->tx_add);
-}
-
-/****************************************
- * Put a packet onto the end of the
- * free list
- ****************************************/
-void put_free_end(struct Host *HostP, struct PKT __iomem *PktP)
-{
- struct rio_free_list __iomem *tmp_pointer;
- unsigned short old_end, new_end;
- unsigned long flags;
-
- rio_spin_lock_irqsave(&HostP->HostLock, flags);
-
- /*************************************************
- * Put a packet back onto the back of the free list
- *
- ************************************************/
-
- rio_dprintk(RIO_DEBUG_PFE, "put_free_end(PktP=%p)\n", PktP);
-
- if ((old_end = readw(&HostP->ParmMapP->free_list_end)) != TPNULL) {
- new_end = RIO_OFF(HostP->Caddr, PktP);
- tmp_pointer = (struct rio_free_list __iomem *) RIO_PTR(HostP->Caddr, old_end);
- writew(new_end, &tmp_pointer->next);
- writew(old_end, &((struct rio_free_list __iomem *) PktP)->prev);
- writew(TPNULL, &((struct rio_free_list __iomem *) PktP)->next);
- writew(new_end, &HostP->ParmMapP->free_list_end);
- } else { /* First packet on the free list this should never happen! */
- rio_dprintk(RIO_DEBUG_PFE, "put_free_end(): This should never happen\n");
- writew(RIO_OFF(HostP->Caddr, PktP), &HostP->ParmMapP->free_list_end);
- tmp_pointer = (struct rio_free_list __iomem *) PktP;
- writew(TPNULL, &tmp_pointer->prev);
- writew(TPNULL, &tmp_pointer->next);
- }
- rio_dprintk(RIO_DEBUG_CMD, "Before unlock: %p\n", &HostP->HostLock);
- rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
-}
-
-/*
-** can_remove_receive(PktP,P) returns non-zero if PKT_IN_USE is set
-** for the next packet on the queue. It will also set PktP to point to the
-** relevant packet, [having cleared the PKT_IN_USE bit]. If PKT_IN_USE is clear,
-** then can_remove_receive() returns 0.
-*/
-int can_remove_receive(struct PKT __iomem **PktP, struct Port *PortP)
-{
- if (readw(PortP->RxRemove) & PKT_IN_USE) {
- *PktP = (struct PKT __iomem *) RIO_PTR(PortP->Caddr, readw(PortP->RxRemove) & ~PKT_IN_USE);
- return 1;
- }
- return 0;
-}
-
-/*
-** To remove a packet from the receive queue you clear its PKT_IN_USE bit,
-** and then bump the pointers. Once the pointers get to the end, they must
-** be wrapped back to the start.
-*/
-void remove_receive(struct Port *PortP)
-{
- writew(readw(PortP->RxRemove) & ~PKT_IN_USE, PortP->RxRemove);
- PortP->RxRemove = (PortP->RxRemove == PortP->RxEnd) ? PortP->RxStart : PortP->RxRemove + 1;
- writew(RIO_OFF(PortP->Caddr, PortP->RxRemove), &PortP->PhbP->rx_remove);
-}
diff --git a/drivers/char/rio/rioroute.c b/drivers/char/rio/rioroute.c
deleted file mode 100644
index f9b936ac339..00000000000
--- a/drivers/char/rio/rioroute.c
+++ /dev/null
@@ -1,1039 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : rioroute.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:46
-** Retrieved : 11/6/98 10:33:50
-**
-** ident @(#)rioroute.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "param.h"
-
-static int RIOCheckIsolated(struct rio_info *, struct Host *, unsigned int);
-static int RIOIsolate(struct rio_info *, struct Host *, unsigned int);
-static int RIOCheck(struct Host *, unsigned int);
-static void RIOConCon(struct rio_info *, struct Host *, unsigned int, unsigned int, unsigned int, unsigned int, int);
-
-
-/*
-** Incoming on the ROUTE_RUP
-** I wrote this while I was tired. Forgive me.
-*/
-int RIORouteRup(struct rio_info *p, unsigned int Rup, struct Host *HostP, struct PKT __iomem * PacketP)
-{
- struct PktCmd __iomem *PktCmdP = (struct PktCmd __iomem *) PacketP->data;
- struct PktCmd_M *PktReplyP;
- struct CmdBlk *CmdBlkP;
- struct Port *PortP;
- struct Map *MapP;
- struct Top *TopP;
- int ThisLink, ThisLinkMin, ThisLinkMax;
- int port;
- int Mod, Mod1, Mod2;
- unsigned short RtaType;
- unsigned int RtaUniq;
- unsigned int ThisUnit, ThisUnit2; /* 2 ids to accommodate 16 port RTA */
- unsigned int OldUnit, NewUnit, OldLink, NewLink;
- char *MyType, *MyName;
- int Lies;
- unsigned long flags;
-
- /*
- ** Is this unit telling us it's current link topology?
- */
- if (readb(&PktCmdP->Command) == ROUTE_TOPOLOGY) {
- MapP = HostP->Mapping;
-
- /*
- ** The packet can be sent either by the host or by an RTA.
- ** If it comes from the host, then we need to fill in the
- ** Topology array in the host structure. If it came in
- ** from an RTA then we need to fill in the Mapping structure's
- ** Topology array for the unit.
- */
- if (Rup >= (unsigned short) MAX_RUP) {
- ThisUnit = HOST_ID;
- TopP = HostP->Topology;
- MyType = "Host";
- MyName = HostP->Name;
- ThisLinkMin = ThisLinkMax = Rup - MAX_RUP;
- } else {
- ThisUnit = Rup + 1;
- TopP = HostP->Mapping[Rup].Topology;
- MyType = "RTA";
- MyName = HostP->Mapping[Rup].Name;
- ThisLinkMin = 0;
- ThisLinkMax = LINKS_PER_UNIT - 1;
- }
-
- /*
- ** Lies will not be tolerated.
- ** If any pair of links claim to be connected to the same
- ** place, then ignore this packet completely.
- */
- Lies = 0;
- for (ThisLink = ThisLinkMin + 1; ThisLink <= ThisLinkMax; ThisLink++) {
- /*
- ** it won't lie about network interconnect, total disconnects
- ** and no-IDs. (or at least, it doesn't *matter* if it does)
- */
- if (readb(&PktCmdP->RouteTopology[ThisLink].Unit) > (unsigned short) MAX_RUP)
- continue;
-
- for (NewLink = ThisLinkMin; NewLink < ThisLink; NewLink++) {
- if ((readb(&PktCmdP->RouteTopology[ThisLink].Unit) == readb(&PktCmdP->RouteTopology[NewLink].Unit)) && (readb(&PktCmdP->RouteTopology[ThisLink].Link) == readb(&PktCmdP->RouteTopology[NewLink].Link))) {
- Lies++;
- }
- }
- }
-
- if (Lies) {
- rio_dprintk(RIO_DEBUG_ROUTE, "LIES! DAMN LIES! %d LIES!\n", Lies);
- rio_dprintk(RIO_DEBUG_ROUTE, "%d:%c %d:%c %d:%c %d:%c\n",
- readb(&PktCmdP->RouteTopology[0].Unit),
- 'A' + readb(&PktCmdP->RouteTopology[0].Link),
- readb(&PktCmdP->RouteTopology[1].Unit),
- 'A' + readb(&PktCmdP->RouteTopology[1].Link), readb(&PktCmdP->RouteTopology[2].Unit), 'A' + readb(&PktCmdP->RouteTopology[2].Link), readb(&PktCmdP->RouteTopology[3].Unit), 'A' + readb(&PktCmdP->RouteTopology[3].Link));
- return 1;
- }
-
- /*
- ** now, process each link.
- */
- for (ThisLink = ThisLinkMin; ThisLink <= ThisLinkMax; ThisLink++) {
- /*
- ** this is what it was connected to
- */
- OldUnit = TopP[ThisLink].Unit;
- OldLink = TopP[ThisLink].Link;
-
- /*
- ** this is what it is now connected to
- */
- NewUnit = readb(&PktCmdP->RouteTopology[ThisLink].Unit);
- NewLink = readb(&PktCmdP->RouteTopology[ThisLink].Link);
-
- if (OldUnit != NewUnit || OldLink != NewLink) {
- /*
- ** something has changed!
- */
-
- if (NewUnit > MAX_RUP && NewUnit != ROUTE_DISCONNECT && NewUnit != ROUTE_NO_ID && NewUnit != ROUTE_INTERCONNECT) {
- rio_dprintk(RIO_DEBUG_ROUTE, "I have a link from %s %s to unit %d:%d - I don't like it.\n", MyType, MyName, NewUnit, NewLink);
- } else {
- /*
- ** put the new values in
- */
- TopP[ThisLink].Unit = NewUnit;
- TopP[ThisLink].Link = NewLink;
-
- RIOSetChange(p);
-
- if (OldUnit <= MAX_RUP) {
- /*
- ** If something has become bust, then re-enable them messages
- */
- if (!p->RIONoMessage)
- RIOConCon(p, HostP, ThisUnit, ThisLink, OldUnit, OldLink, DISCONNECT);
- }
-
- if ((NewUnit <= MAX_RUP) && !p->RIONoMessage)
- RIOConCon(p, HostP, ThisUnit, ThisLink, NewUnit, NewLink, CONNECT);
-
- if (NewUnit == ROUTE_NO_ID)
- rio_dprintk(RIO_DEBUG_ROUTE, "%s %s (%c) is connected to an unconfigured unit.\n", MyType, MyName, 'A' + ThisLink);
-
- if (NewUnit == ROUTE_INTERCONNECT) {
- if (!p->RIONoMessage)
- printk(KERN_DEBUG "rio: %s '%s' (%c) is connected to another network.\n", MyType, MyName, 'A' + ThisLink);
- }
-
- /*
- ** perform an update for 'the other end', so that these messages
- ** only appears once. Only disconnect the other end if it is pointing
- ** at us!
- */
- if (OldUnit == HOST_ID) {
- if (HostP->Topology[OldLink].Unit == ThisUnit && HostP->Topology[OldLink].Link == ThisLink) {
- rio_dprintk(RIO_DEBUG_ROUTE, "SETTING HOST (%c) TO DISCONNECTED!\n", OldLink + 'A');
- HostP->Topology[OldLink].Unit = ROUTE_DISCONNECT;
- HostP->Topology[OldLink].Link = NO_LINK;
- } else {
- rio_dprintk(RIO_DEBUG_ROUTE, "HOST(%c) WAS NOT CONNECTED TO %s (%c)!\n", OldLink + 'A', HostP->Mapping[ThisUnit - 1].Name, ThisLink + 'A');
- }
- } else if (OldUnit <= MAX_RUP) {
- if (HostP->Mapping[OldUnit - 1].Topology[OldLink].Unit == ThisUnit && HostP->Mapping[OldUnit - 1].Topology[OldLink].Link == ThisLink) {
- rio_dprintk(RIO_DEBUG_ROUTE, "SETTING RTA %s (%c) TO DISCONNECTED!\n", HostP->Mapping[OldUnit - 1].Name, OldLink + 'A');
- HostP->Mapping[OldUnit - 1].Topology[OldLink].Unit = ROUTE_DISCONNECT;
- HostP->Mapping[OldUnit - 1].Topology[OldLink].Link = NO_LINK;
- } else {
- rio_dprintk(RIO_DEBUG_ROUTE, "RTA %s (%c) WAS NOT CONNECTED TO %s (%c)\n", HostP->Mapping[OldUnit - 1].Name, OldLink + 'A', HostP->Mapping[ThisUnit - 1].Name, ThisLink + 'A');
- }
- }
- if (NewUnit == HOST_ID) {
- rio_dprintk(RIO_DEBUG_ROUTE, "MARKING HOST (%c) CONNECTED TO %s (%c)\n", NewLink + 'A', MyName, ThisLink + 'A');
- HostP->Topology[NewLink].Unit = ThisUnit;
- HostP->Topology[NewLink].Link = ThisLink;
- } else if (NewUnit <= MAX_RUP) {
- rio_dprintk(RIO_DEBUG_ROUTE, "MARKING RTA %s (%c) CONNECTED TO %s (%c)\n", HostP->Mapping[NewUnit - 1].Name, NewLink + 'A', MyName, ThisLink + 'A');
- HostP->Mapping[NewUnit - 1].Topology[NewLink].Unit = ThisUnit;
- HostP->Mapping[NewUnit - 1].Topology[NewLink].Link = ThisLink;
- }
- }
- RIOSetChange(p);
- RIOCheckIsolated(p, HostP, OldUnit);
- }
- }
- return 1;
- }
-
- /*
- ** The only other command we recognise is a route_request command
- */
- if (readb(&PktCmdP->Command) != ROUTE_REQUEST) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Unknown command %d received on rup %d host %p ROUTE_RUP\n", readb(&PktCmdP->Command), Rup, HostP);
- return 1;
- }
-
- RtaUniq = (readb(&PktCmdP->UniqNum[0])) + (readb(&PktCmdP->UniqNum[1]) << 8) + (readb(&PktCmdP->UniqNum[2]) << 16) + (readb(&PktCmdP->UniqNum[3]) << 24);
-
- /*
- ** Determine if 8 or 16 port RTA
- */
- RtaType = GetUnitType(RtaUniq);
-
- rio_dprintk(RIO_DEBUG_ROUTE, "Received a request for an ID for serial number %x\n", RtaUniq);
-
- Mod = readb(&PktCmdP->ModuleTypes);
- Mod1 = LONYBLE(Mod);
- if (RtaType == TYPE_RTA16) {
- /*
- ** Only one ident is set for a 16 port RTA. To make compatible
- ** with 8 port, set 2nd ident in Mod2 to the same as Mod1.
- */
- Mod2 = Mod1;
- rio_dprintk(RIO_DEBUG_ROUTE, "Backplane type is %s (all ports)\n", p->RIOModuleTypes[Mod1].Name);
- } else {
- Mod2 = HINYBLE(Mod);
- rio_dprintk(RIO_DEBUG_ROUTE, "Module types are %s (ports 0-3) and %s (ports 4-7)\n", p->RIOModuleTypes[Mod1].Name, p->RIOModuleTypes[Mod2].Name);
- }
-
- /*
- ** try to unhook a command block from the command free list.
- */
- if (!(CmdBlkP = RIOGetCmdBlk())) {
- rio_dprintk(RIO_DEBUG_ROUTE, "No command blocks to route RTA! come back later.\n");
- return 0;
- }
-
- /*
- ** Fill in the default info on the command block
- */
- CmdBlkP->Packet.dest_unit = Rup;
- CmdBlkP->Packet.dest_port = ROUTE_RUP;
- CmdBlkP->Packet.src_unit = HOST_ID;
- CmdBlkP->Packet.src_port = ROUTE_RUP;
- CmdBlkP->Packet.len = PKT_CMD_BIT | 1;
- CmdBlkP->PreFuncP = CmdBlkP->PostFuncP = NULL;
- PktReplyP = (struct PktCmd_M *) CmdBlkP->Packet.data;
-
- if (!RIOBootOk(p, HostP, RtaUniq)) {
- rio_dprintk(RIO_DEBUG_ROUTE, "RTA %x tried to get an ID, but does not belong - FOAD it!\n", RtaUniq);
- PktReplyP->Command = ROUTE_FOAD;
- memcpy(PktReplyP->CommandText, "RT_FOAD", 7);
- RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
- return 1;
- }
-
- /*
- ** Check to see if the RTA is configured for this host
- */
- for (ThisUnit = 0; ThisUnit < MAX_RUP; ThisUnit++) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Entry %d Flags=%s %s UniqueNum=0x%x\n",
- ThisUnit, HostP->Mapping[ThisUnit].Flags & SLOT_IN_USE ? "Slot-In-Use" : "Not In Use", HostP->Mapping[ThisUnit].Flags & SLOT_TENTATIVE ? "Slot-Tentative" : "Not Tentative", HostP->Mapping[ThisUnit].RtaUniqueNum);
-
- /*
- ** We have an entry for it.
- */
- if ((HostP->Mapping[ThisUnit].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) && (HostP->Mapping[ThisUnit].RtaUniqueNum == RtaUniq)) {
- if (RtaType == TYPE_RTA16) {
- ThisUnit2 = HostP->Mapping[ThisUnit].ID2 - 1;
- rio_dprintk(RIO_DEBUG_ROUTE, "Found unit 0x%x at slots %d+%d\n", RtaUniq, ThisUnit, ThisUnit2);
- } else
- rio_dprintk(RIO_DEBUG_ROUTE, "Found unit 0x%x at slot %d\n", RtaUniq, ThisUnit);
- /*
- ** If we have no knowledge of booting it, then the host has
- ** been re-booted, and so we must kill the RTA, so that it
- ** will be booted again (potentially with new bins)
- ** and it will then re-ask for an ID, which we will service.
- */
- if ((HostP->Mapping[ThisUnit].Flags & SLOT_IN_USE) && !(HostP->Mapping[ThisUnit].Flags & RTA_BOOTED)) {
- if (!(HostP->Mapping[ThisUnit].Flags & MSG_DONE)) {
- if (!p->RIONoMessage)
- printk(KERN_DEBUG "rio: RTA '%s' is being updated.\n", HostP->Mapping[ThisUnit].Name);
- HostP->Mapping[ThisUnit].Flags |= MSG_DONE;
- }
- PktReplyP->Command = ROUTE_FOAD;
- memcpy(PktReplyP->CommandText, "RT_FOAD", 7);
- RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
- return 1;
- }
-
- /*
- ** Send the ID (entry) to this RTA. The ID number is implicit as
- ** the offset into the table. It is worth noting at this stage
- ** that offset zero in the table contains the entries for the
- ** RTA with ID 1!!!!
- */
- PktReplyP->Command = ROUTE_ALLOCATE;
- PktReplyP->IDNum = ThisUnit + 1;
- if (RtaType == TYPE_RTA16) {
- if (HostP->Mapping[ThisUnit].Flags & SLOT_IN_USE)
- /*
- ** Adjust the phb and tx pkt dest_units for 2nd block of 8
- ** only if the RTA has ports associated (SLOT_IN_USE)
- */
- RIOFixPhbs(p, HostP, ThisUnit2);
- PktReplyP->IDNum2 = ThisUnit2 + 1;
- rio_dprintk(RIO_DEBUG_ROUTE, "RTA '%s' has been allocated IDs %d+%d\n", HostP->Mapping[ThisUnit].Name, PktReplyP->IDNum, PktReplyP->IDNum2);
- } else {
- PktReplyP->IDNum2 = ROUTE_NO_ID;
- rio_dprintk(RIO_DEBUG_ROUTE, "RTA '%s' has been allocated ID %d\n", HostP->Mapping[ThisUnit].Name, PktReplyP->IDNum);
- }
- memcpy(PktReplyP->CommandText, "RT_ALLOCAT", 10);
-
- RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
-
- /*
- ** If this is a freshly booted RTA, then we need to re-open
- ** the ports, if any where open, so that data may once more
- ** flow around the system!
- */
- if ((HostP->Mapping[ThisUnit].Flags & RTA_NEWBOOT) && (HostP->Mapping[ThisUnit].SysPort != NO_PORT)) {
- /*
- ** look at the ports associated with this beast and
- ** see if any where open. If they was, then re-open
- ** them, using the info from the tty flags.
- */
- for (port = 0; port < PORTS_PER_RTA; port++) {
- PortP = p->RIOPortp[port + HostP->Mapping[ThisUnit].SysPort];
- if (PortP->State & (RIO_MOPEN | RIO_LOPEN)) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Re-opened this port\n");
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->MagicFlags |= MAGIC_REBOOT;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- }
- }
- if (RtaType == TYPE_RTA16) {
- for (port = 0; port < PORTS_PER_RTA; port++) {
- PortP = p->RIOPortp[port + HostP->Mapping[ThisUnit2].SysPort];
- if (PortP->State & (RIO_MOPEN | RIO_LOPEN)) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Re-opened this port\n");
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->MagicFlags |= MAGIC_REBOOT;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- }
- }
- }
- }
-
- /*
- ** keep a copy of the module types!
- */
- HostP->UnixRups[ThisUnit].ModTypes = Mod;
- if (RtaType == TYPE_RTA16)
- HostP->UnixRups[ThisUnit2].ModTypes = Mod;
-
- /*
- ** If either of the modules on this unit is read-only or write-only
- ** or none-xprint, then we need to transfer that info over to the
- ** relevant ports.
- */
- if (HostP->Mapping[ThisUnit].SysPort != NO_PORT) {
- for (port = 0; port < PORTS_PER_MODULE; port++) {
- p->RIOPortp[port + HostP->Mapping[ThisUnit].SysPort]->Config &= ~RIO_NOMASK;
- p->RIOPortp[port + HostP->Mapping[ThisUnit].SysPort]->Config |= p->RIOModuleTypes[Mod1].Flags[port];
- p->RIOPortp[port + PORTS_PER_MODULE + HostP->Mapping[ThisUnit].SysPort]->Config &= ~RIO_NOMASK;
- p->RIOPortp[port + PORTS_PER_MODULE + HostP->Mapping[ThisUnit].SysPort]->Config |= p->RIOModuleTypes[Mod2].Flags[port];
- }
- if (RtaType == TYPE_RTA16) {
- for (port = 0; port < PORTS_PER_MODULE; port++) {
- p->RIOPortp[port + HostP->Mapping[ThisUnit2].SysPort]->Config &= ~RIO_NOMASK;
- p->RIOPortp[port + HostP->Mapping[ThisUnit2].SysPort]->Config |= p->RIOModuleTypes[Mod1].Flags[port];
- p->RIOPortp[port + PORTS_PER_MODULE + HostP->Mapping[ThisUnit2].SysPort]->Config &= ~RIO_NOMASK;
- p->RIOPortp[port + PORTS_PER_MODULE + HostP->Mapping[ThisUnit2].SysPort]->Config |= p->RIOModuleTypes[Mod2].Flags[port];
- }
- }
- }
-
- /*
- ** Job done, get on with the interrupts!
- */
- return 1;
- }
- }
- /*
- ** There is no table entry for this RTA at all.
- **
- ** Lets check to see if we actually booted this unit - if not,
- ** then we reset it and it will go round the loop of being booted
- ** we can then worry about trying to fit it into the table.
- */
- for (ThisUnit = 0; ThisUnit < HostP->NumExtraBooted; ThisUnit++)
- if (HostP->ExtraUnits[ThisUnit] == RtaUniq)
- break;
- if (ThisUnit == HostP->NumExtraBooted && ThisUnit != MAX_EXTRA_UNITS) {
- /*
- ** if the unit wasn't in the table, and the table wasn't full, then
- ** we reset the unit, because we didn't boot it.
- ** However, if the table is full, it could be that we did boot
- ** this unit, and so we won't reboot it, because it isn't really
- ** all that disasterous to keep the old bins in most cases. This
- ** is a rather tacky feature, but we are on the edge of reallity
- ** here, because the implication is that someone has connected
- ** 16+MAX_EXTRA_UNITS onto one host.
- */
- static int UnknownMesgDone = 0;
-
- if (!UnknownMesgDone) {
- if (!p->RIONoMessage)
- printk(KERN_DEBUG "rio: One or more unknown RTAs are being updated.\n");
- UnknownMesgDone = 1;
- }
-
- PktReplyP->Command = ROUTE_FOAD;
- memcpy(PktReplyP->CommandText, "RT_FOAD", 7);
- } else {
- /*
- ** we did boot it (as an extra), and there may now be a table
- ** slot free (because of a delete), so we will try to make
- ** a tentative entry for it, so that the configurator can see it
- ** and fill in the details for us.
- */
- if (RtaType == TYPE_RTA16) {
- if (RIOFindFreeID(p, HostP, &ThisUnit, &ThisUnit2) == 0) {
- RIODefaultName(p, HostP, ThisUnit);
- rio_fill_host_slot(ThisUnit, ThisUnit2, RtaUniq, HostP);
- }
- } else {
- if (RIOFindFreeID(p, HostP, &ThisUnit, NULL) == 0) {
- RIODefaultName(p, HostP, ThisUnit);
- rio_fill_host_slot(ThisUnit, 0, RtaUniq, HostP);
- }
- }
- PktReplyP->Command = ROUTE_USED;
- memcpy(PktReplyP->CommandText, "RT_USED", 7);
- }
- RIOQueueCmdBlk(HostP, Rup, CmdBlkP);
- return 1;
-}
-
-
-void RIOFixPhbs(struct rio_info *p, struct Host *HostP, unsigned int unit)
-{
- unsigned short link, port;
- struct Port *PortP;
- unsigned long flags;
- int PortN = HostP->Mapping[unit].SysPort;
-
- rio_dprintk(RIO_DEBUG_ROUTE, "RIOFixPhbs unit %d sysport %d\n", unit, PortN);
-
- if (PortN != -1) {
- unsigned short dest_unit = HostP->Mapping[unit].ID2;
-
- /*
- ** Get the link number used for the 1st 8 phbs on this unit.
- */
- PortP = p->RIOPortp[HostP->Mapping[dest_unit - 1].SysPort];
-
- link = readw(&PortP->PhbP->link);
-
- for (port = 0; port < PORTS_PER_RTA; port++, PortN++) {
- unsigned short dest_port = port + 8;
- u16 __iomem *TxPktP;
- struct PKT __iomem *Pkt;
-
- PortP = p->RIOPortp[PortN];
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- /*
- ** If RTA is not powered on, the tx packets will be
- ** unset, so go no further.
- */
- if (!PortP->TxStart) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Tx pkts not set up yet\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- break;
- }
-
- /*
- ** For the second slot of a 16 port RTA, the driver needs to
- ** sort out the phb to port mappings. The dest_unit for this
- ** group of 8 phbs is set to the dest_unit of the accompanying
- ** 8 port block. The dest_port of the second unit is set to
- ** be in the range 8-15 (i.e. 8 is added). Thus, for a 16 port
- ** RTA with IDs 5 and 6, traffic bound for port 6 of unit 6
- ** (being the second map ID) will be sent to dest_unit 5, port
- ** 14. When this RTA is deleted, dest_unit for ID 6 will be
- ** restored, and the dest_port will be reduced by 8.
- ** Transmit packets also have a destination field which needs
- ** adjusting in the same manner.
- ** Note that the unit/port bytes in 'dest' are swapped.
- ** We also need to adjust the phb and rup link numbers for the
- ** second block of 8 ttys.
- */
- for (TxPktP = PortP->TxStart; TxPktP <= PortP->TxEnd; TxPktP++) {
- /*
- ** *TxPktP is the pointer to the transmit packet on the host
- ** card. This needs to be translated into a 32 bit pointer
- ** so it can be accessed from the driver.
- */
- Pkt = (struct PKT __iomem *) RIO_PTR(HostP->Caddr, readw(TxPktP));
-
- /*
- ** If the packet is used, reset it.
- */
- Pkt = (struct PKT __iomem *) ((unsigned long) Pkt & ~PKT_IN_USE);
- writeb(dest_unit, &Pkt->dest_unit);
- writeb(dest_port, &Pkt->dest_port);
- }
- rio_dprintk(RIO_DEBUG_ROUTE, "phb dest: Old %x:%x New %x:%x\n", readw(&PortP->PhbP->destination) & 0xff, (readw(&PortP->PhbP->destination) >> 8) & 0xff, dest_unit, dest_port);
- writew(dest_unit + (dest_port << 8), &PortP->PhbP->destination);
- writew(link, &PortP->PhbP->link);
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- }
- /*
- ** Now make sure the range of ports to be serviced includes
- ** the 2nd 8 on this 16 port RTA.
- */
- if (link > 3)
- return;
- if (((unit * 8) + 7) > readw(&HostP->LinkStrP[link].last_port)) {
- rio_dprintk(RIO_DEBUG_ROUTE, "last port on host link %d: %d\n", link, (unit * 8) + 7);
- writew((unit * 8) + 7, &HostP->LinkStrP[link].last_port);
- }
- }
-}
-
-/*
-** Check to see if the new disconnection has isolated this unit.
-** If it has, then invalidate all its link information, and tell
-** the world about it. This is done to ensure that the configurator
-** only gets up-to-date information about what is going on.
-*/
-static int RIOCheckIsolated(struct rio_info *p, struct Host *HostP, unsigned int UnitId)
-{
- unsigned long flags;
- rio_spin_lock_irqsave(&HostP->HostLock, flags);
-
- if (RIOCheck(HostP, UnitId)) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Unit %d is NOT isolated\n", UnitId);
- rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
- return (0);
- }
-
- RIOIsolate(p, HostP, UnitId);
- RIOSetChange(p);
- rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
- return 1;
-}
-
-/*
-** Invalidate all the link interconnectivity of this unit, and of
-** all the units attached to it. This will mean that the entire
-** subnet will re-introduce itself.
-*/
-static int RIOIsolate(struct rio_info *p, struct Host *HostP, unsigned int UnitId)
-{
- unsigned int link, unit;
-
- UnitId--; /* this trick relies on the Unit Id being UNSIGNED! */
-
- if (UnitId >= MAX_RUP) /* dontcha just lurv unsigned maths! */
- return (0);
-
- if (HostP->Mapping[UnitId].Flags & BEEN_HERE)
- return (0);
-
- HostP->Mapping[UnitId].Flags |= BEEN_HERE;
-
- if (p->RIOPrintDisabled == DO_PRINT)
- rio_dprintk(RIO_DEBUG_ROUTE, "RIOMesgIsolated %s", HostP->Mapping[UnitId].Name);
-
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- unit = HostP->Mapping[UnitId].Topology[link].Unit;
- HostP->Mapping[UnitId].Topology[link].Unit = ROUTE_DISCONNECT;
- HostP->Mapping[UnitId].Topology[link].Link = NO_LINK;
- RIOIsolate(p, HostP, unit);
- }
- HostP->Mapping[UnitId].Flags &= ~BEEN_HERE;
- return 1;
-}
-
-static int RIOCheck(struct Host *HostP, unsigned int UnitId)
-{
- unsigned char link;
-
-/* rio_dprint(RIO_DEBUG_ROUTE, ("Check to see if unit %d has a route to the host\n",UnitId)); */
- rio_dprintk(RIO_DEBUG_ROUTE, "RIOCheck : UnitID = %d\n", UnitId);
-
- if (UnitId == HOST_ID) {
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d is NOT isolated - it IS the host!\n", UnitId)); */
- return 1;
- }
-
- UnitId--;
-
- if (UnitId >= MAX_RUP) {
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d - ignored.\n", UnitId)); */
- return 0;
- }
-
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- if (HostP->Mapping[UnitId].Topology[link].Unit == HOST_ID) {
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d is connected directly to host via link (%c).\n",
- UnitId, 'A'+link)); */
- return 1;
- }
- }
-
- if (HostP->Mapping[UnitId].Flags & BEEN_HERE) {
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Been to Unit %d before - ignoring\n", UnitId)); */
- return 0;
- }
-
- HostP->Mapping[UnitId].Flags |= BEEN_HERE;
-
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d check link (%c)\n", UnitId,'A'+link)); */
- if (RIOCheck(HostP, HostP->Mapping[UnitId].Topology[link].Unit)) {
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d is connected to something that knows the host via link (%c)\n", UnitId,link+'A')); */
- HostP->Mapping[UnitId].Flags &= ~BEEN_HERE;
- return 1;
- }
- }
-
- HostP->Mapping[UnitId].Flags &= ~BEEN_HERE;
-
- /* rio_dprint(RIO_DEBUG_ROUTE, ("Unit %d DOESNT KNOW THE HOST!\n", UnitId)); */
-
- return 0;
-}
-
-/*
-** Returns the type of unit (host, 16/8 port RTA)
-*/
-
-unsigned int GetUnitType(unsigned int Uniq)
-{
- switch ((Uniq >> 28) & 0xf) {
- case RIO_AT:
- case RIO_MCA:
- case RIO_EISA:
- case RIO_PCI:
- rio_dprintk(RIO_DEBUG_ROUTE, "Unit type: Host\n");
- return (TYPE_HOST);
- case RIO_RTA_16:
- rio_dprintk(RIO_DEBUG_ROUTE, "Unit type: 16 port RTA\n");
- return (TYPE_RTA16);
- case RIO_RTA:
- rio_dprintk(RIO_DEBUG_ROUTE, "Unit type: 8 port RTA\n");
- return (TYPE_RTA8);
- default:
- rio_dprintk(RIO_DEBUG_ROUTE, "Unit type: Unrecognised\n");
- return (99);
- }
-}
-
-int RIOSetChange(struct rio_info *p)
-{
- if (p->RIOQuickCheck != NOT_CHANGED)
- return (0);
- p->RIOQuickCheck = CHANGED;
- if (p->RIOSignalProcess) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Send SIG-HUP");
- /*
- psignal( RIOSignalProcess, SIGHUP );
- */
- }
- return (0);
-}
-
-static void RIOConCon(struct rio_info *p,
- struct Host *HostP,
- unsigned int FromId,
- unsigned int FromLink,
- unsigned int ToId,
- unsigned int ToLink,
- int Change)
-{
- char *FromName;
- char *FromType;
- char *ToName;
- char *ToType;
- unsigned int tp;
-
-/*
-** 15.10.1998 ARG - ESIL 0759
-** (Part) fix for port being trashed when opened whilst RTA "disconnected"
-**
-** What's this doing in here anyway ?
-** It was causing the port to be 'unmapped' if opened whilst RTA "disconnected"
-**
-** 09.12.1998 ARG - ESIL 0776 - part fix
-** Okay, We've found out what this was all about now !
-** Someone had botched this to use RIOHalted to indicated the number of RTAs
-** 'disconnected'. The value in RIOHalted was then being used in the
-** 'RIO_QUICK_CHECK' ioctl. A none zero value indicating that a least one RTA
-** is 'disconnected'. The change was put in to satisfy a customer's needs.
-** Having taken this bit of code out 'RIO_QUICK_CHECK' now no longer works for
-** the customer.
-**
- if (Change == CONNECT) {
- if (p->RIOHalted) p->RIOHalted --;
- }
- else {
- p->RIOHalted ++;
- }
-**
-** So - we need to implement it slightly differently - a new member of the
-** rio_info struct - RIORtaDisCons (RIO RTA connections) keeps track of RTA
-** connections and disconnections.
-*/
- if (Change == CONNECT) {
- if (p->RIORtaDisCons)
- p->RIORtaDisCons--;
- } else {
- p->RIORtaDisCons++;
- }
-
- if (p->RIOPrintDisabled == DONT_PRINT)
- return;
-
- if (FromId > ToId) {
- tp = FromId;
- FromId = ToId;
- ToId = tp;
- tp = FromLink;
- FromLink = ToLink;
- ToLink = tp;
- }
-
- FromName = FromId ? HostP->Mapping[FromId - 1].Name : HostP->Name;
- FromType = FromId ? "RTA" : "HOST";
- ToName = ToId ? HostP->Mapping[ToId - 1].Name : HostP->Name;
- ToType = ToId ? "RTA" : "HOST";
-
- rio_dprintk(RIO_DEBUG_ROUTE, "Link between %s '%s' (%c) and %s '%s' (%c) %s.\n", FromType, FromName, 'A' + FromLink, ToType, ToName, 'A' + ToLink, (Change == CONNECT) ? "established" : "disconnected");
- printk(KERN_DEBUG "rio: Link between %s '%s' (%c) and %s '%s' (%c) %s.\n", FromType, FromName, 'A' + FromLink, ToType, ToName, 'A' + ToLink, (Change == CONNECT) ? "established" : "disconnected");
-}
-
-/*
-** RIORemoveFromSavedTable :
-**
-** Delete and RTA entry from the saved table given to us
-** by the configuration program.
-*/
-static int RIORemoveFromSavedTable(struct rio_info *p, struct Map *pMap)
-{
- int entry;
-
- /*
- ** We loop for all entries even after finding an entry and
- ** zeroing it because we may have two entries to delete if
- ** it's a 16 port RTA.
- */
- for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
- if (p->RIOSavedTable[entry].RtaUniqueNum == pMap->RtaUniqueNum) {
- memset(&p->RIOSavedTable[entry], 0, sizeof(struct Map));
- }
- }
- return 0;
-}
-
-
-/*
-** RIOCheckDisconnected :
-**
-** Scan the unit links to and return zero if the unit is completely
-** disconnected.
-*/
-static int RIOFreeDisconnected(struct rio_info *p, struct Host *HostP, int unit)
-{
- int link;
-
-
- rio_dprintk(RIO_DEBUG_ROUTE, "RIOFreeDisconnect unit %d\n", unit);
- /*
- ** If the slot is tentative and does not belong to the
- ** second half of a 16 port RTA then scan to see if
- ** is disconnected.
- */
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- if (HostP->Mapping[unit].Topology[link].Unit != ROUTE_DISCONNECT)
- break;
- }
-
- /*
- ** If not all links are disconnected then we can forget about it.
- */
- if (link < LINKS_PER_UNIT)
- return 1;
-
-#ifdef NEED_TO_FIX_THIS
- /* Ok so all the links are disconnected. But we may have only just
- ** made this slot tentative and not yet received a topology update.
- ** Lets check how long ago we made it tentative.
- */
- rio_dprintk(RIO_DEBUG_ROUTE, "Just about to check LBOLT on entry %d\n", unit);
- if (drv_getparm(LBOLT, (ulong_t *) & current_time))
- rio_dprintk(RIO_DEBUG_ROUTE, "drv_getparm(LBOLT,....) Failed.\n");
-
- elapse_time = current_time - TentTime[unit];
- rio_dprintk(RIO_DEBUG_ROUTE, "elapse %d = current %d - tent %d (%d usec)\n", elapse_time, current_time, TentTime[unit], drv_hztousec(elapse_time));
- if (drv_hztousec(elapse_time) < WAIT_TO_FINISH) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Skipping slot %d, not timed out yet %d\n", unit, drv_hztousec(elapse_time));
- return 1;
- }
-#endif
-
- /*
- ** We have found an usable slot.
- ** If it is half of a 16 port RTA then delete the other half.
- */
- if (HostP->Mapping[unit].ID2 != 0) {
- int nOther = (HostP->Mapping[unit].ID2) - 1;
-
- rio_dprintk(RIO_DEBUG_ROUTE, "RioFreedis second slot %d.\n", nOther);
- memset(&HostP->Mapping[nOther], 0, sizeof(struct Map));
- }
- RIORemoveFromSavedTable(p, &HostP->Mapping[unit]);
-
- return 0;
-}
-
-
-/*
-** RIOFindFreeID :
-**
-** This function scans the given host table for either one
-** or two free unit ID's.
-*/
-
-int RIOFindFreeID(struct rio_info *p, struct Host *HostP, unsigned int * pID1, unsigned int * pID2)
-{
- int unit, tempID;
-
- /*
- ** Initialise the ID's to MAX_RUP.
- ** We do this to make the loop for setting the ID's as simple as
- ** possible.
- */
- *pID1 = MAX_RUP;
- if (pID2 != NULL)
- *pID2 = MAX_RUP;
-
- /*
- ** Scan all entries of the host mapping table for free slots.
- ** We scan for free slots first and then if that is not successful
- ** we start all over again looking for tentative slots we can re-use.
- */
- for (unit = 0; unit < MAX_RUP; unit++) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Scanning unit %d\n", unit);
- /*
- ** If the flags are zero then the slot is empty.
- */
- if (HostP->Mapping[unit].Flags == 0) {
- rio_dprintk(RIO_DEBUG_ROUTE, " This slot is empty.\n");
- /*
- ** If we haven't allocated the first ID then do it now.
- */
- if (*pID1 == MAX_RUP) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Make tentative entry for first unit %d\n", unit);
- *pID1 = unit;
-
- /*
- ** If the second ID is not needed then we can return
- ** now.
- */
- if (pID2 == NULL)
- return 0;
- } else {
- /*
- ** Allocate the second slot and return.
- */
- rio_dprintk(RIO_DEBUG_ROUTE, "Make tentative entry for second unit %d\n", unit);
- *pID2 = unit;
- return 0;
- }
- }
- }
-
- /*
- ** If we manage to come out of the free slot loop then we
- ** need to start all over again looking for tentative slots
- ** that we can re-use.
- */
- rio_dprintk(RIO_DEBUG_ROUTE, "Starting to scan for tentative slots\n");
- for (unit = 0; unit < MAX_RUP; unit++) {
- if (((HostP->Mapping[unit].Flags & SLOT_TENTATIVE) || (HostP->Mapping[unit].Flags == 0)) && !(HostP->Mapping[unit].Flags & RTA16_SECOND_SLOT)) {
- rio_dprintk(RIO_DEBUG_ROUTE, " Slot %d looks promising.\n", unit);
-
- if (unit == *pID1) {
- rio_dprintk(RIO_DEBUG_ROUTE, " No it isn't, its the 1st half\n");
- continue;
- }
-
- /*
- ** Slot is Tentative or Empty, but not a tentative second
- ** slot of a 16 porter.
- ** Attempt to free up this slot (and its parnter if
- ** it is a 16 port slot. The second slot will become
- ** empty after a call to RIOFreeDisconnected so thats why
- ** we look for empty slots above as well).
- */
- if (HostP->Mapping[unit].Flags != 0)
- if (RIOFreeDisconnected(p, HostP, unit) != 0)
- continue;
- /*
- ** If we haven't allocated the first ID then do it now.
- */
- if (*pID1 == MAX_RUP) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Grab tentative entry for first unit %d\n", unit);
- *pID1 = unit;
-
- /*
- ** Clear out this slot now that we intend to use it.
- */
- memset(&HostP->Mapping[unit], 0, sizeof(struct Map));
-
- /*
- ** If the second ID is not needed then we can return
- ** now.
- */
- if (pID2 == NULL)
- return 0;
- } else {
- /*
- ** Allocate the second slot and return.
- */
- rio_dprintk(RIO_DEBUG_ROUTE, "Grab tentative/empty entry for second unit %d\n", unit);
- *pID2 = unit;
-
- /*
- ** Clear out this slot now that we intend to use it.
- */
- memset(&HostP->Mapping[unit], 0, sizeof(struct Map));
-
- /* At this point under the right(wrong?) conditions
- ** we may have a first unit ID being higher than the
- ** second unit ID. This is a bad idea if we are about
- ** to fill the slots with a 16 port RTA.
- ** Better check and swap them over.
- */
-
- if (*pID1 > *pID2) {
- rio_dprintk(RIO_DEBUG_ROUTE, "Swapping IDS %d %d\n", *pID1, *pID2);
- tempID = *pID1;
- *pID1 = *pID2;
- *pID2 = tempID;
- }
- return 0;
- }
- }
- }
-
- /*
- ** If we manage to get to the end of the second loop then we
- ** can give up and return a failure.
- */
- return 1;
-}
-
-
-/*
-** The link switch scenario.
-**
-** Rta Wun (A) is connected to Tuw (A).
-** The tables are all up to date, and the system is OK.
-**
-** If Wun (A) is now moved to Wun (B) before Wun (A) can
-** become disconnected, then the follow happens:
-**
-** Tuw (A) spots the change of unit:link at the other end
-** of its link and Tuw sends a topology packet reflecting
-** the change: Tuw (A) now disconnected from Wun (A), and
-** this is closely followed by a packet indicating that
-** Tuw (A) is now connected to Wun (B).
-**
-** Wun (B) will spot that it has now become connected, and
-** Wun will send a topology packet, which indicates that
-** both Wun (A) and Wun (B) is connected to Tuw (A).
-**
-** Eventually Wun (A) realises that it is now disconnected
-** and Wun will send out a topology packet indicating that
-** Wun (A) is now disconnected.
-*/
diff --git a/drivers/char/rio/riospace.h b/drivers/char/rio/riospace.h
deleted file mode 100644
index ffb31d4332b..00000000000
--- a/drivers/char/rio/riospace.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : riospace.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:13
-** Retrieved : 11/6/98 11:34:22
-**
-** ident @(#)riospace.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_riospace_h__
-#define __rio_riospace_h__
-
-#define RIO_LOCATOR_LEN 16
-#define MAX_RIO_BOARDS 4
-
-/*
-** DONT change this file. At all. Unless you can rebuild the entire
-** device driver, which you probably can't, then the rest of the
-** driver won't see any changes you make here. So don't make any.
-** In particular, it won't be able to see changes to RIO_SLOTS
-*/
-
-struct Conf {
- char Locator[24];
- unsigned int StartupTime;
- unsigned int SlowCook;
- unsigned int IntrPollTime;
- unsigned int BreakInterval;
- unsigned int Timer;
- unsigned int RtaLoadBase;
- unsigned int HostLoadBase;
- unsigned int XpHz;
- unsigned int XpCps;
- char *XpOn;
- char *XpOff;
- unsigned int MaxXpCps;
- unsigned int MinXpCps;
- unsigned int SpinCmds;
- unsigned int FirstAddr;
- unsigned int LastAddr;
- unsigned int BufferSize;
- unsigned int LowWater;
- unsigned int LineLength;
- unsigned int CmdTime;
-};
-
-/*
-** Board types - these MUST correspond to product codes!
-*/
-#define RIO_EMPTY 0x0
-#define RIO_EISA 0x3
-#define RIO_RTA_16 0x9
-#define RIO_AT 0xA
-#define RIO_MCA 0xB
-#define RIO_PCI 0xD
-#define RIO_RTA 0xE
-
-/*
-** Board data structure. This is used for configuration info
-*/
-struct Brd {
- unsigned char Type; /* RIO_EISA, RIO_MCA, RIO_AT, RIO_EMPTY... */
- unsigned char Ivec; /* POLLED or ivec number */
- unsigned char Mode; /* Control stuff, see below */
-};
-
-struct Board {
- char Locator[RIO_LOCATOR_LEN];
- int NumSlots;
- struct Brd Boards[MAX_RIO_BOARDS];
-};
-
-#define BOOT_FROM_LINK 0x00
-#define BOOT_FROM_RAM 0x01
-#define EXTERNAL_BUS_OFF 0x00
-#define EXTERNAL_BUS_ON 0x02
-#define INTERRUPT_DISABLE 0x00
-#define INTERRUPT_ENABLE 0x04
-#define BYTE_OPERATION 0x00
-#define WORD_OPERATION 0x08
-#define POLLED INTERRUPT_DISABLE
-#define IRQ_15 (0x00 | INTERRUPT_ENABLE)
-#define IRQ_12 (0x10 | INTERRUPT_ENABLE)
-#define IRQ_11 (0x20 | INTERRUPT_ENABLE)
-#define IRQ_9 (0x30 | INTERRUPT_ENABLE)
-#define SLOW_LINKS 0x00
-#define FAST_LINKS 0x40
-#define SLOW_AT_BUS 0x00
-#define FAST_AT_BUS 0x80
-#define SLOW_PCI_TP 0x00
-#define FAST_PCI_TP 0x80
-/*
-** Debug levels
-*/
-#define DBG_NONE 0x00000000
-
-#define DBG_INIT 0x00000001
-#define DBG_OPEN 0x00000002
-#define DBG_CLOSE 0x00000004
-#define DBG_IOCTL 0x00000008
-
-#define DBG_READ 0x00000010
-#define DBG_WRITE 0x00000020
-#define DBG_INTR 0x00000040
-#define DBG_PROC 0x00000080
-
-#define DBG_PARAM 0x00000100
-#define DBG_CMD 0x00000200
-#define DBG_XPRINT 0x00000400
-#define DBG_POLL 0x00000800
-
-#define DBG_DAEMON 0x00001000
-#define DBG_FAIL 0x00002000
-#define DBG_MODEM 0x00004000
-#define DBG_LIST 0x00008000
-
-#define DBG_ROUTE 0x00010000
-#define DBG_UTIL 0x00020000
-#define DBG_BOOT 0x00040000
-#define DBG_BUFFER 0x00080000
-
-#define DBG_MON 0x00100000
-#define DBG_SPECIAL 0x00200000
-#define DBG_VPIX 0x00400000
-#define DBG_FLUSH 0x00800000
-
-#define DBG_QENABLE 0x01000000
-
-#define DBG_ALWAYS 0x80000000
-
-#endif /* __rio_riospace_h__ */
diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c
deleted file mode 100644
index 3d15802dc0f..00000000000
--- a/drivers/char/rio/riotable.c
+++ /dev/null
@@ -1,941 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : riotable.c
-** SID : 1.2
-** Last Modified : 11/6/98 10:33:47
-** Retrieved : 11/6/98 10:33:50
-**
-** ident @(#)riotable.c 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/string.h>
-
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "param.h"
-#include "protsts.h"
-
-/*
-** A configuration table has been loaded. It is now up to us
-** to sort it out and use the information contained therein.
-*/
-int RIONewTable(struct rio_info *p)
-{
- int Host, Host1, Host2, NameIsUnique, Entry, SubEnt;
- struct Map *MapP;
- struct Map *HostMapP;
- struct Host *HostP;
-
- char *cptr;
-
- /*
- ** We have been sent a new table to install. We need to break
- ** it down into little bits and spread it around a bit to see
- ** what we have got.
- */
- /*
- ** Things to check:
- ** (things marked 'xx' aren't checked any more!)
- ** (1) That there are no booted Hosts/RTAs out there.
- ** (2) That the names are properly formed
- ** (3) That blank entries really are.
- ** xx (4) That hosts mentioned in the table actually exist. xx
- ** (5) That the IDs are unique (per host).
- ** (6) That host IDs are zero
- ** (7) That port numbers are valid
- ** (8) That port numbers aren't duplicated
- ** (9) That names aren't duplicated
- ** xx (10) That hosts that actually exist are mentioned in the table. xx
- */
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(1)\n");
- if (p->RIOSystemUp) { /* (1) */
- p->RIOError.Error = HOST_HAS_ALREADY_BEEN_BOOTED;
- return -EBUSY;
- }
-
- p->RIOError.Error = NOTHING_WRONG_AT_ALL;
- p->RIOError.Entry = -1;
- p->RIOError.Other = -1;
-
- for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
- MapP = &p->RIOConnectTable[Entry];
- if ((MapP->Flags & RTA16_SECOND_SLOT) == 0) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(2)\n");
- cptr = MapP->Name; /* (2) */
- cptr[MAX_NAME_LEN - 1] = '\0';
- if (cptr[0] == '\0') {
- memcpy(MapP->Name, MapP->RtaUniqueNum ? "RTA NN" : "HOST NN", 8);
- MapP->Name[5] = '0' + Entry / 10;
- MapP->Name[6] = '0' + Entry % 10;
- }
- while (*cptr) {
- if (*cptr < ' ' || *cptr > '~') {
- p->RIOError.Error = BAD_CHARACTER_IN_NAME;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- cptr++;
- }
- }
-
- /*
- ** If the entry saved was a tentative entry then just forget
- ** about it.
- */
- if (MapP->Flags & SLOT_TENTATIVE) {
- MapP->HostUniqueNum = 0;
- MapP->RtaUniqueNum = 0;
- continue;
- }
-
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(3)\n");
- if (!MapP->RtaUniqueNum && !MapP->HostUniqueNum) { /* (3) */
- if (MapP->ID || MapP->SysPort || MapP->Flags) {
- rio_dprintk(RIO_DEBUG_TABLE, "%s pretending to be empty but isn't\n", MapP->Name);
- p->RIOError.Error = TABLE_ENTRY_ISNT_PROPERLY_NULL;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- rio_dprintk(RIO_DEBUG_TABLE, "!RIO: Daemon: test (3) passes\n");
- continue;
- }
-
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(4)\n");
- for (Host = 0; Host < p->RIONumHosts; Host++) { /* (4) */
- if (p->RIOHosts[Host].UniqueNum == MapP->HostUniqueNum) {
- HostP = &p->RIOHosts[Host];
- /*
- ** having done the lookup, we don't really want to do
- ** it again, so hang the host number in a safe place
- */
- MapP->Topology[0].Unit = Host;
- break;
- }
- }
-
- if (Host >= p->RIONumHosts) {
- rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has unknown host unique number 0x%x\n", MapP->Name, MapP->HostUniqueNum);
- MapP->HostUniqueNum = 0;
- /* MapP->RtaUniqueNum = 0; */
- /* MapP->ID = 0; */
- /* MapP->Flags = 0; */
- /* MapP->SysPort = 0; */
- /* MapP->Name[0] = 0; */
- continue;
- }
-
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(5)\n");
- if (MapP->RtaUniqueNum) { /* (5) */
- if (!MapP->ID) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIO: RTA %s has been allocated an ID of zero!\n", MapP->Name);
- p->RIOError.Error = ZERO_RTA_ID;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- if (MapP->ID > MAX_RUP) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIO: RTA %s has been allocated an invalid ID %d\n", MapP->Name, MapP->ID);
- p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- for (SubEnt = 0; SubEnt < Entry; SubEnt++) {
- if (MapP->HostUniqueNum == p->RIOConnectTable[SubEnt].HostUniqueNum && MapP->ID == p->RIOConnectTable[SubEnt].ID) {
- rio_dprintk(RIO_DEBUG_TABLE, "Dupl. ID number allocated to RTA %s and RTA %s\n", MapP->Name, p->RIOConnectTable[SubEnt].Name);
- p->RIOError.Error = DUPLICATED_RTA_ID;
- p->RIOError.Entry = Entry;
- p->RIOError.Other = SubEnt;
- return -ENXIO;
- }
- /*
- ** If the RtaUniqueNum is the same, it may be looking at both
- ** entries for a 16 port RTA, so check the ids
- */
- if ((MapP->RtaUniqueNum == p->RIOConnectTable[SubEnt].RtaUniqueNum)
- && (MapP->ID2 != p->RIOConnectTable[SubEnt].ID)) {
- rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has duplicate unique number\n", MapP->Name);
- rio_dprintk(RIO_DEBUG_TABLE, "RTA %s has duplicate unique number\n", p->RIOConnectTable[SubEnt].Name);
- p->RIOError.Error = DUPLICATE_UNIQUE_NUMBER;
- p->RIOError.Entry = Entry;
- p->RIOError.Other = SubEnt;
- return -ENXIO;
- }
- }
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(7a)\n");
- /* (7a) */
- if ((MapP->SysPort != NO_PORT) && (MapP->SysPort % PORTS_PER_RTA)) {
- rio_dprintk(RIO_DEBUG_TABLE, "TTY Port number %d-RTA %s is not a multiple of %d!\n", (int) MapP->SysPort, MapP->Name, PORTS_PER_RTA);
- p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(7b)\n");
- /* (7b) */
- if ((MapP->SysPort != NO_PORT) && (MapP->SysPort >= RIO_PORTS)) {
- rio_dprintk(RIO_DEBUG_TABLE, "TTY Port number %d for RTA %s is too big\n", (int) MapP->SysPort, MapP->Name);
- p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- for (SubEnt = 0; SubEnt < Entry; SubEnt++) {
- if (p->RIOConnectTable[SubEnt].Flags & RTA16_SECOND_SLOT)
- continue;
- if (p->RIOConnectTable[SubEnt].RtaUniqueNum) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(8)\n");
- /* (8) */
- if ((MapP->SysPort != NO_PORT) && (MapP->SysPort == p->RIOConnectTable[SubEnt].SysPort)) {
- rio_dprintk(RIO_DEBUG_TABLE, "RTA %s:same TTY port # as RTA %s (%d)\n", MapP->Name, p->RIOConnectTable[SubEnt].Name, (int) MapP->SysPort);
- p->RIOError.Error = TTY_NUMBER_IN_USE;
- p->RIOError.Entry = Entry;
- p->RIOError.Other = SubEnt;
- return -ENXIO;
- }
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(9)\n");
- if (strcmp(MapP->Name, p->RIOConnectTable[SubEnt].Name) == 0 && !(MapP->Flags & RTA16_SECOND_SLOT)) { /* (9) */
- rio_dprintk(RIO_DEBUG_TABLE, "RTA name %s used twice\n", MapP->Name);
- p->RIOError.Error = NAME_USED_TWICE;
- p->RIOError.Entry = Entry;
- p->RIOError.Other = SubEnt;
- return -ENXIO;
- }
- }
- }
- } else { /* (6) */
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: entering(6)\n");
- if (MapP->ID) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIO:HOST %s has been allocated ID that isn't zero!\n", MapP->Name);
- p->RIOError.Error = HOST_ID_NOT_ZERO;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- if (MapP->SysPort != NO_PORT) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIO: HOST %s has been allocated port numbers!\n", MapP->Name);
- p->RIOError.Error = HOST_SYSPORT_BAD;
- p->RIOError.Entry = Entry;
- return -ENXIO;
- }
- }
- }
-
- /*
- ** wow! if we get here then it's a goody!
- */
-
- /*
- ** Zero the (old) entries for each host...
- */
- for (Host = 0; Host < RIO_HOSTS; Host++) {
- for (Entry = 0; Entry < MAX_RUP; Entry++) {
- memset(&p->RIOHosts[Host].Mapping[Entry], 0, sizeof(struct Map));
- }
- memset(&p->RIOHosts[Host].Name[0], 0, sizeof(p->RIOHosts[Host].Name));
- }
-
- /*
- ** Copy in the new table entries
- */
- for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
- rio_dprintk(RIO_DEBUG_TABLE, "RIONewTable: Copy table for Host entry %d\n", Entry);
- MapP = &p->RIOConnectTable[Entry];
-
- /*
- ** Now, if it is an empty slot ignore it!
- */
- if (MapP->HostUniqueNum == 0)
- continue;
-
- /*
- ** we saved the host number earlier, so grab it back
- */
- HostP = &p->RIOHosts[MapP->Topology[0].Unit];
-
- /*
- ** If it is a host, then we only need to fill in the name field.
- */
- if (MapP->ID == 0) {
- rio_dprintk(RIO_DEBUG_TABLE, "Host entry found. Name %s\n", MapP->Name);
- memcpy(HostP->Name, MapP->Name, MAX_NAME_LEN);
- continue;
- }
-
- /*
- ** Its an RTA entry, so fill in the host mapping entries for it
- ** and the port mapping entries. Notice that entry zero is for
- ** ID one.
- */
- HostMapP = &HostP->Mapping[MapP->ID - 1];
-
- if (MapP->Flags & SLOT_IN_USE) {
- rio_dprintk(RIO_DEBUG_TABLE, "Rta entry found. Name %s\n", MapP->Name);
- /*
- ** structure assign, then sort out the bits we shouldn't have done
- */
- *HostMapP = *MapP;
-
- HostMapP->Flags = SLOT_IN_USE;
- if (MapP->Flags & RTA16_SECOND_SLOT)
- HostMapP->Flags |= RTA16_SECOND_SLOT;
-
- RIOReMapPorts(p, HostP, HostMapP);
- } else {
- rio_dprintk(RIO_DEBUG_TABLE, "TENTATIVE Rta entry found. Name %s\n", MapP->Name);
- }
- }
-
- for (Entry = 0; Entry < TOTAL_MAP_ENTRIES; Entry++) {
- p->RIOSavedTable[Entry] = p->RIOConnectTable[Entry];
- }
-
- for (Host = 0; Host < p->RIONumHosts; Host++) {
- for (SubEnt = 0; SubEnt < LINKS_PER_UNIT; SubEnt++) {
- p->RIOHosts[Host].Topology[SubEnt].Unit = ROUTE_DISCONNECT;
- p->RIOHosts[Host].Topology[SubEnt].Link = NO_LINK;
- }
- for (Entry = 0; Entry < MAX_RUP; Entry++) {
- for (SubEnt = 0; SubEnt < LINKS_PER_UNIT; SubEnt++) {
- p->RIOHosts[Host].Mapping[Entry].Topology[SubEnt].Unit = ROUTE_DISCONNECT;
- p->RIOHosts[Host].Mapping[Entry].Topology[SubEnt].Link = NO_LINK;
- }
- }
- if (!p->RIOHosts[Host].Name[0]) {
- memcpy(p->RIOHosts[Host].Name, "HOST 1", 7);
- p->RIOHosts[Host].Name[5] += Host;
- }
- /*
- ** Check that default name assigned is unique.
- */
- Host1 = Host;
- NameIsUnique = 0;
- while (!NameIsUnique) {
- NameIsUnique = 1;
- for (Host2 = 0; Host2 < p->RIONumHosts; Host2++) {
- if (Host2 == Host)
- continue;
- if (strcmp(p->RIOHosts[Host].Name, p->RIOHosts[Host2].Name)
- == 0) {
- NameIsUnique = 0;
- Host1++;
- if (Host1 >= p->RIONumHosts)
- Host1 = 0;
- p->RIOHosts[Host].Name[5] = '1' + Host1;
- }
- }
- }
- /*
- ** Rename host if name already used.
- */
- if (Host1 != Host) {
- rio_dprintk(RIO_DEBUG_TABLE, "Default name %s already used\n", p->RIOHosts[Host].Name);
- memcpy(p->RIOHosts[Host].Name, "HOST 1", 7);
- p->RIOHosts[Host].Name[5] += Host1;
- }
- rio_dprintk(RIO_DEBUG_TABLE, "Assigning default name %s\n", p->RIOHosts[Host].Name);
- }
- return 0;
-}
-
-/*
-** User process needs the config table - build it from first
-** principles.
-**
-* FIXME: SMP locking
-*/
-int RIOApel(struct rio_info *p)
-{
- int Host;
- int link;
- int Rup;
- int Next = 0;
- struct Map *MapP;
- struct Host *HostP;
- unsigned long flags;
-
- rio_dprintk(RIO_DEBUG_TABLE, "Generating a table to return to config.rio\n");
-
- memset(&p->RIOConnectTable[0], 0, sizeof(struct Map) * TOTAL_MAP_ENTRIES);
-
- for (Host = 0; Host < RIO_HOSTS; Host++) {
- rio_dprintk(RIO_DEBUG_TABLE, "Processing host %d\n", Host);
- HostP = &p->RIOHosts[Host];
- rio_spin_lock_irqsave(&HostP->HostLock, flags);
-
- MapP = &p->RIOConnectTable[Next++];
- MapP->HostUniqueNum = HostP->UniqueNum;
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
- rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
- continue;
- }
- MapP->RtaUniqueNum = 0;
- MapP->ID = 0;
- MapP->Flags = SLOT_IN_USE;
- MapP->SysPort = NO_PORT;
- for (link = 0; link < LINKS_PER_UNIT; link++)
- MapP->Topology[link] = HostP->Topology[link];
- memcpy(MapP->Name, HostP->Name, MAX_NAME_LEN);
- for (Rup = 0; Rup < MAX_RUP; Rup++) {
- if (HostP->Mapping[Rup].Flags & (SLOT_IN_USE | SLOT_TENTATIVE)) {
- p->RIOConnectTable[Next] = HostP->Mapping[Rup];
- if (HostP->Mapping[Rup].Flags & SLOT_IN_USE)
- p->RIOConnectTable[Next].Flags |= SLOT_IN_USE;
- if (HostP->Mapping[Rup].Flags & SLOT_TENTATIVE)
- p->RIOConnectTable[Next].Flags |= SLOT_TENTATIVE;
- if (HostP->Mapping[Rup].Flags & RTA16_SECOND_SLOT)
- p->RIOConnectTable[Next].Flags |= RTA16_SECOND_SLOT;
- Next++;
- }
- }
- rio_spin_unlock_irqrestore(&HostP->HostLock, flags);
- }
- return 0;
-}
-
-/*
-** config.rio has taken a dislike to one of the gross maps entries.
-** if the entry is suitably inactive, then we can gob on it and remove
-** it from the table.
-*/
-int RIODeleteRta(struct rio_info *p, struct Map *MapP)
-{
- int host, entry, port, link;
- int SysPort;
- struct Host *HostP;
- struct Map *HostMapP;
- struct Port *PortP;
- int work_done = 0;
- unsigned long lock_flags, sem_flags;
-
- rio_dprintk(RIO_DEBUG_TABLE, "Delete entry on host %x, rta %x\n", MapP->HostUniqueNum, MapP->RtaUniqueNum);
-
- for (host = 0; host < p->RIONumHosts; host++) {
- HostP = &p->RIOHosts[host];
-
- rio_spin_lock_irqsave(&HostP->HostLock, lock_flags);
-
- if ((HostP->Flags & RUN_STATE) != RC_RUNNING) {
- rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
- continue;
- }
-
- for (entry = 0; entry < MAX_RUP; entry++) {
- if (MapP->RtaUniqueNum == HostP->Mapping[entry].RtaUniqueNum) {
- HostMapP = &HostP->Mapping[entry];
- rio_dprintk(RIO_DEBUG_TABLE, "Found entry offset %d on host %s\n", entry, HostP->Name);
-
- /*
- ** Check all four links of the unit are disconnected
- */
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- if (HostMapP->Topology[link].Unit != ROUTE_DISCONNECT) {
- rio_dprintk(RIO_DEBUG_TABLE, "Entry is in use and cannot be deleted!\n");
- p->RIOError.Error = UNIT_IS_IN_USE;
- rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
- return -EBUSY;
- }
- }
- /*
- ** Slot has been allocated, BUT not booted/routed/
- ** connected/selected or anything else-ed
- */
- SysPort = HostMapP->SysPort;
-
- if (SysPort != NO_PORT) {
- for (port = SysPort; port < SysPort + PORTS_PER_RTA; port++) {
- PortP = p->RIOPortp[port];
- rio_dprintk(RIO_DEBUG_TABLE, "Unmap port\n");
-
- rio_spin_lock_irqsave(&PortP->portSem, sem_flags);
-
- PortP->Mapped = 0;
-
- if (PortP->State & (RIO_MOPEN | RIO_LOPEN)) {
-
- rio_dprintk(RIO_DEBUG_TABLE, "Gob on port\n");
- PortP->TxBufferIn = PortP->TxBufferOut = 0;
- /* What should I do
- wakeup( &PortP->TxBufferIn );
- wakeup( &PortP->TxBufferOut);
- */
- PortP->InUse = NOT_INUSE;
- /* What should I do
- wakeup( &PortP->InUse );
- signal(PortP->TtyP->t_pgrp,SIGKILL);
- ttyflush(PortP->TtyP,(FREAD|FWRITE));
- */
- PortP->State |= RIO_CLOSING | RIO_DELETED;
- }
-
- /*
- ** For the second slot of a 16 port RTA, the
- ** driver needs to reset the changes made to
- ** the phb to port mappings in RIORouteRup.
- */
- if (PortP->SecondBlock) {
- u16 dest_unit = HostMapP->ID;
- u16 dest_port = port - SysPort;
- u16 __iomem *TxPktP;
- struct PKT __iomem *Pkt;
-
- for (TxPktP = PortP->TxStart; TxPktP <= PortP->TxEnd; TxPktP++) {
- /*
- ** *TxPktP is the pointer to the
- ** transmit packet on the host card.
- ** This needs to be translated into
- ** a 32 bit pointer so it can be
- ** accessed from the driver.
- */
- Pkt = (struct PKT __iomem *) RIO_PTR(HostP->Caddr, readw(&*TxPktP));
- rio_dprintk(RIO_DEBUG_TABLE, "Tx packet (%x) destination: Old %x:%x New %x:%x\n", readw(TxPktP), readb(&Pkt->dest_unit), readb(&Pkt->dest_port), dest_unit, dest_port);
- writew(dest_unit, &Pkt->dest_unit);
- writew(dest_port, &Pkt->dest_port);
- }
- rio_dprintk(RIO_DEBUG_TABLE, "Port %d phb destination: Old %x:%x New %x:%x\n", port, readb(&PortP->PhbP->destination) & 0xff, (readb(&PortP->PhbP->destination) >> 8) & 0xff, dest_unit, dest_port);
- writew(dest_unit + (dest_port << 8), &PortP->PhbP->destination);
- }
- rio_spin_unlock_irqrestore(&PortP->portSem, sem_flags);
- }
- }
- rio_dprintk(RIO_DEBUG_TABLE, "Entry nulled.\n");
- memset(HostMapP, 0, sizeof(struct Map));
- work_done++;
- }
- }
- rio_spin_unlock_irqrestore(&HostP->HostLock, lock_flags);
- }
-
- /* XXXXX lock me up */
- for (entry = 0; entry < TOTAL_MAP_ENTRIES; entry++) {
- if (p->RIOSavedTable[entry].RtaUniqueNum == MapP->RtaUniqueNum) {
- memset(&p->RIOSavedTable[entry], 0, sizeof(struct Map));
- work_done++;
- }
- if (p->RIOConnectTable[entry].RtaUniqueNum == MapP->RtaUniqueNum) {
- memset(&p->RIOConnectTable[entry], 0, sizeof(struct Map));
- work_done++;
- }
- }
- if (work_done)
- return 0;
-
- rio_dprintk(RIO_DEBUG_TABLE, "Couldn't find entry to be deleted\n");
- p->RIOError.Error = COULDNT_FIND_ENTRY;
- return -ENXIO;
-}
-
-int RIOAssignRta(struct rio_info *p, struct Map *MapP)
-{
- int host;
- struct Map *HostMapP;
- char *sptr;
- int link;
-
-
- rio_dprintk(RIO_DEBUG_TABLE, "Assign entry on host %x, rta %x, ID %d, Sysport %d\n", MapP->HostUniqueNum, MapP->RtaUniqueNum, MapP->ID, (int) MapP->SysPort);
-
- if ((MapP->ID != (u16) - 1) && ((int) MapP->ID < (int) 1 || (int) MapP->ID > MAX_RUP)) {
- rio_dprintk(RIO_DEBUG_TABLE, "Bad ID in map entry!\n");
- p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- if (MapP->RtaUniqueNum == 0) {
- rio_dprintk(RIO_DEBUG_TABLE, "Rta Unique number zero!\n");
- p->RIOError.Error = RTA_UNIQUE_NUMBER_ZERO;
- return -EINVAL;
- }
- if ((MapP->SysPort != NO_PORT) && (MapP->SysPort % PORTS_PER_RTA)) {
- rio_dprintk(RIO_DEBUG_TABLE, "Port %d not multiple of %d!\n", (int) MapP->SysPort, PORTS_PER_RTA);
- p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
- if ((MapP->SysPort != NO_PORT) && (MapP->SysPort >= RIO_PORTS)) {
- rio_dprintk(RIO_DEBUG_TABLE, "Port %d not valid!\n", (int) MapP->SysPort);
- p->RIOError.Error = TTY_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- /*
- ** Copy the name across to the map entry.
- */
- MapP->Name[MAX_NAME_LEN - 1] = '\0';
- sptr = MapP->Name;
- while (*sptr) {
- if (*sptr < ' ' || *sptr > '~') {
- rio_dprintk(RIO_DEBUG_TABLE, "Name entry contains non-printing characters!\n");
- p->RIOError.Error = BAD_CHARACTER_IN_NAME;
- return -EINVAL;
- }
- sptr++;
- }
-
- for (host = 0; host < p->RIONumHosts; host++) {
- if (MapP->HostUniqueNum == p->RIOHosts[host].UniqueNum) {
- if ((p->RIOHosts[host].Flags & RUN_STATE) != RC_RUNNING) {
- p->RIOError.Error = HOST_NOT_RUNNING;
- return -ENXIO;
- }
-
- /*
- ** Now we have a host we need to allocate an ID
- ** if the entry does not already have one.
- */
- if (MapP->ID == (u16) - 1) {
- int nNewID;
-
- rio_dprintk(RIO_DEBUG_TABLE, "Attempting to get a new ID for rta \"%s\"\n", MapP->Name);
- /*
- ** The idea here is to allow RTA's to be assigned
- ** before they actually appear on the network.
- ** This allows the addition of RTA's without having
- ** to plug them in.
- ** What we do is:
- ** - Find a free ID and allocate it to the RTA.
- ** - If this map entry is the second half of a
- ** 16 port entry then find the other half and
- ** make sure the 2 cross reference each other.
- */
- if (RIOFindFreeID(p, &p->RIOHosts[host], &nNewID, NULL) != 0) {
- p->RIOError.Error = COULDNT_FIND_ENTRY;
- return -EBUSY;
- }
- MapP->ID = (u16) nNewID + 1;
- rio_dprintk(RIO_DEBUG_TABLE, "Allocated ID %d for this new RTA.\n", MapP->ID);
- HostMapP = &p->RIOHosts[host].Mapping[nNewID];
- HostMapP->RtaUniqueNum = MapP->RtaUniqueNum;
- HostMapP->HostUniqueNum = MapP->HostUniqueNum;
- HostMapP->ID = MapP->ID;
- for (link = 0; link < LINKS_PER_UNIT; link++) {
- HostMapP->Topology[link].Unit = ROUTE_DISCONNECT;
- HostMapP->Topology[link].Link = NO_LINK;
- }
- if (MapP->Flags & RTA16_SECOND_SLOT) {
- int unit;
-
- for (unit = 0; unit < MAX_RUP; unit++)
- if (p->RIOHosts[host].Mapping[unit].RtaUniqueNum == MapP->RtaUniqueNum)
- break;
- if (unit == MAX_RUP) {
- p->RIOError.Error = COULDNT_FIND_ENTRY;
- return -EBUSY;
- }
- HostMapP->Flags |= RTA16_SECOND_SLOT;
- HostMapP->ID2 = MapP->ID2 = p->RIOHosts[host].Mapping[unit].ID;
- p->RIOHosts[host].Mapping[unit].ID2 = MapP->ID;
- rio_dprintk(RIO_DEBUG_TABLE, "Cross referenced id %d to ID %d.\n", MapP->ID, p->RIOHosts[host].Mapping[unit].ID);
- }
- }
-
- HostMapP = &p->RIOHosts[host].Mapping[MapP->ID - 1];
-
- if (HostMapP->Flags & SLOT_IN_USE) {
- rio_dprintk(RIO_DEBUG_TABLE, "Map table slot for ID %d is already in use.\n", MapP->ID);
- p->RIOError.Error = ID_ALREADY_IN_USE;
- return -EBUSY;
- }
-
- /*
- ** Assign the sys ports and the name, and mark the slot as
- ** being in use.
- */
- HostMapP->SysPort = MapP->SysPort;
- if ((MapP->Flags & RTA16_SECOND_SLOT) == 0)
- memcpy(HostMapP->Name, MapP->Name, MAX_NAME_LEN);
- HostMapP->Flags = SLOT_IN_USE | RTA_BOOTED;
-#ifdef NEED_TO_FIX
- RIO_SV_BROADCAST(p->RIOHosts[host].svFlags[MapP->ID - 1]);
-#endif
- if (MapP->Flags & RTA16_SECOND_SLOT)
- HostMapP->Flags |= RTA16_SECOND_SLOT;
-
- RIOReMapPorts(p, &p->RIOHosts[host], HostMapP);
- /*
- ** Adjust 2nd block of 8 phbs
- */
- if (MapP->Flags & RTA16_SECOND_SLOT)
- RIOFixPhbs(p, &p->RIOHosts[host], HostMapP->ID - 1);
-
- if (HostMapP->SysPort != NO_PORT) {
- if (HostMapP->SysPort < p->RIOFirstPortsBooted)
- p->RIOFirstPortsBooted = HostMapP->SysPort;
- if (HostMapP->SysPort > p->RIOLastPortsBooted)
- p->RIOLastPortsBooted = HostMapP->SysPort;
- }
- if (MapP->Flags & RTA16_SECOND_SLOT)
- rio_dprintk(RIO_DEBUG_TABLE, "Second map of RTA %s added to configuration\n", p->RIOHosts[host].Mapping[MapP->ID2 - 1].Name);
- else
- rio_dprintk(RIO_DEBUG_TABLE, "RTA %s added to configuration\n", MapP->Name);
- return 0;
- }
- }
- p->RIOError.Error = UNKNOWN_HOST_NUMBER;
- rio_dprintk(RIO_DEBUG_TABLE, "Unknown host %x\n", MapP->HostUniqueNum);
- return -ENXIO;
-}
-
-
-int RIOReMapPorts(struct rio_info *p, struct Host *HostP, struct Map *HostMapP)
-{
- struct Port *PortP;
- unsigned int SubEnt;
- unsigned int HostPort;
- unsigned int SysPort;
- u16 RtaType;
- unsigned long flags;
-
- rio_dprintk(RIO_DEBUG_TABLE, "Mapping sysport %d to id %d\n", (int) HostMapP->SysPort, HostMapP->ID);
-
- /*
- ** We need to tell the UnixRups which sysport the rup corresponds to
- */
- HostP->UnixRups[HostMapP->ID - 1].BaseSysPort = HostMapP->SysPort;
-
- if (HostMapP->SysPort == NO_PORT)
- return (0);
-
- RtaType = GetUnitType(HostMapP->RtaUniqueNum);
- rio_dprintk(RIO_DEBUG_TABLE, "Mapping sysport %d-%d\n", (int) HostMapP->SysPort, (int) HostMapP->SysPort + PORTS_PER_RTA - 1);
-
- /*
- ** now map each of its eight ports
- */
- for (SubEnt = 0; SubEnt < PORTS_PER_RTA; SubEnt++) {
- rio_dprintk(RIO_DEBUG_TABLE, "subent = %d, HostMapP->SysPort = %d\n", SubEnt, (int) HostMapP->SysPort);
- SysPort = HostMapP->SysPort + SubEnt; /* portnumber within system */
- /* portnumber on host */
-
- HostPort = (HostMapP->ID - 1) * PORTS_PER_RTA + SubEnt;
-
- rio_dprintk(RIO_DEBUG_TABLE, "c1 p = %p, p->rioPortp = %p\n", p, p->RIOPortp);
- PortP = p->RIOPortp[SysPort];
- rio_dprintk(RIO_DEBUG_TABLE, "Map port\n");
-
- /*
- ** Point at all the real neat data structures
- */
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- PortP->HostP = HostP;
- PortP->Caddr = HostP->Caddr;
-
- /*
- ** The PhbP cannot be filled in yet
- ** unless the host has been booted
- */
- if ((HostP->Flags & RUN_STATE) == RC_RUNNING) {
- struct PHB __iomem *PhbP = PortP->PhbP = &HostP->PhbP[HostPort];
- PortP->TxAdd = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_add));
- PortP->TxStart = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_start));
- PortP->TxEnd = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->tx_end));
- PortP->RxRemove = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_remove));
- PortP->RxStart = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_start));
- PortP->RxEnd = (u16 __iomem *) RIO_PTR(HostP->Caddr, readw(&PhbP->rx_end));
- } else
- PortP->PhbP = NULL;
-
- /*
- ** port related flags
- */
- PortP->HostPort = HostPort;
- /*
- ** For each part of a 16 port RTA, RupNum is ID - 1.
- */
- PortP->RupNum = HostMapP->ID - 1;
- if (HostMapP->Flags & RTA16_SECOND_SLOT) {
- PortP->ID2 = HostMapP->ID2 - 1;
- PortP->SecondBlock = 1;
- } else {
- PortP->ID2 = 0;
- PortP->SecondBlock = 0;
- }
- PortP->RtaUniqueNum = HostMapP->RtaUniqueNum;
-
- /*
- ** If the port was already mapped then thats all we need to do.
- */
- if (PortP->Mapped) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- continue;
- } else
- HostMapP->Flags &= ~RTA_NEWBOOT;
-
- PortP->State = 0;
- PortP->Config = 0;
- /*
- ** Check out the module type - if it is special (read only etc.)
- ** then we need to set flags in the PortP->Config.
- ** Note: For 16 port RTA, all ports are of the same type.
- */
- if (RtaType == TYPE_RTA16) {
- PortP->Config |= p->RIOModuleTypes[HostP->UnixRups[HostMapP->ID - 1].ModTypes].Flags[SubEnt % PORTS_PER_MODULE];
- } else {
- if (SubEnt < PORTS_PER_MODULE)
- PortP->Config |= p->RIOModuleTypes[LONYBLE(HostP->UnixRups[HostMapP->ID - 1].ModTypes)].Flags[SubEnt % PORTS_PER_MODULE];
- else
- PortP->Config |= p->RIOModuleTypes[HINYBLE(HostP->UnixRups[HostMapP->ID - 1].ModTypes)].Flags[SubEnt % PORTS_PER_MODULE];
- }
-
- /*
- ** more port related flags
- */
- PortP->PortState = 0;
- PortP->ModemLines = 0;
- PortP->ModemState = 0;
- PortP->CookMode = COOK_WELL;
- PortP->ParamSem = 0;
- PortP->FlushCmdBodge = 0;
- PortP->WflushFlag = 0;
- PortP->MagicFlags = 0;
- PortP->Lock = 0;
- PortP->Store = 0;
- PortP->FirstOpen = 1;
-
- /*
- ** Buffers 'n things
- */
- PortP->RxDataStart = 0;
- PortP->Cor2Copy = 0;
- PortP->Name = &HostMapP->Name[0];
- PortP->statsGather = 0;
- PortP->txchars = 0;
- PortP->rxchars = 0;
- PortP->opens = 0;
- PortP->closes = 0;
- PortP->ioctls = 0;
- if (PortP->TxRingBuffer)
- memset(PortP->TxRingBuffer, 0, p->RIOBufferSize);
- else if (p->RIOBufferSize) {
- PortP->TxRingBuffer = kzalloc(p->RIOBufferSize, GFP_KERNEL);
- }
- PortP->TxBufferOut = 0;
- PortP->TxBufferIn = 0;
- PortP->Debug = 0;
- /*
- ** LastRxTgl stores the state of the rx toggle bit for this
- ** port, to be compared with the state of the next pkt received.
- ** If the same, we have received the same rx pkt from the RTA
- ** twice. Initialise to a value not equal to PHB_RX_TGL or 0.
- */
- PortP->LastRxTgl = ~(u8) PHB_RX_TGL;
-
- /*
- ** and mark the port as usable
- */
- PortP->Mapped = 1;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- }
- if (HostMapP->SysPort < p->RIOFirstPortsMapped)
- p->RIOFirstPortsMapped = HostMapP->SysPort;
- if (HostMapP->SysPort > p->RIOLastPortsMapped)
- p->RIOLastPortsMapped = HostMapP->SysPort;
-
- return 0;
-}
-
-int RIOChangeName(struct rio_info *p, struct Map *MapP)
-{
- int host;
- struct Map *HostMapP;
- char *sptr;
-
- rio_dprintk(RIO_DEBUG_TABLE, "Change name entry on host %x, rta %x, ID %d, Sysport %d\n", MapP->HostUniqueNum, MapP->RtaUniqueNum, MapP->ID, (int) MapP->SysPort);
-
- if (MapP->ID > MAX_RUP) {
- rio_dprintk(RIO_DEBUG_TABLE, "Bad ID in map entry!\n");
- p->RIOError.Error = ID_NUMBER_OUT_OF_RANGE;
- return -EINVAL;
- }
-
- MapP->Name[MAX_NAME_LEN - 1] = '\0';
- sptr = MapP->Name;
-
- while (*sptr) {
- if (*sptr < ' ' || *sptr > '~') {
- rio_dprintk(RIO_DEBUG_TABLE, "Name entry contains non-printing characters!\n");
- p->RIOError.Error = BAD_CHARACTER_IN_NAME;
- return -EINVAL;
- }
- sptr++;
- }
-
- for (host = 0; host < p->RIONumHosts; host++) {
- if (MapP->HostUniqueNum == p->RIOHosts[host].UniqueNum) {
- if ((p->RIOHosts[host].Flags & RUN_STATE) != RC_RUNNING) {
- p->RIOError.Error = HOST_NOT_RUNNING;
- return -ENXIO;
- }
- if (MapP->ID == 0) {
- memcpy(p->RIOHosts[host].Name, MapP->Name, MAX_NAME_LEN);
- return 0;
- }
-
- HostMapP = &p->RIOHosts[host].Mapping[MapP->ID - 1];
-
- if (HostMapP->RtaUniqueNum != MapP->RtaUniqueNum) {
- p->RIOError.Error = RTA_NUMBER_WRONG;
- return -ENXIO;
- }
- memcpy(HostMapP->Name, MapP->Name, MAX_NAME_LEN);
- return 0;
- }
- }
- p->RIOError.Error = UNKNOWN_HOST_NUMBER;
- rio_dprintk(RIO_DEBUG_TABLE, "Unknown host %x\n", MapP->HostUniqueNum);
- return -ENXIO;
-}
diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c
deleted file mode 100644
index 8a90393faf3..00000000000
--- a/drivers/char/rio/riotty.c
+++ /dev/null
@@ -1,654 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : riotty.c
-** SID : 1.3
-** Last Modified : 11/6/98 10:33:47
-** Retrieved : 11/6/98 10:33:50
-**
-** ident @(#)riotty.c 1.3
-**
-** -----------------------------------------------------------------------------
-*/
-
-#define __EXPLICIT_DEF_H__
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/string.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/string.h>
-#include <asm/uaccess.h>
-
-#include <linux/termios.h>
-
-#include <linux/serial.h>
-
-#include <linux/generic_serial.h>
-
-
-#include "linux_compat.h"
-#include "rio_linux.h"
-#include "pkt.h"
-#include "daemon.h"
-#include "rio.h"
-#include "riospace.h"
-#include "cmdpkt.h"
-#include "map.h"
-#include "rup.h"
-#include "port.h"
-#include "riodrvr.h"
-#include "rioinfo.h"
-#include "func.h"
-#include "errors.h"
-#include "pci.h"
-
-#include "parmmap.h"
-#include "unixrup.h"
-#include "board.h"
-#include "host.h"
-#include "phb.h"
-#include "link.h"
-#include "cmdblk.h"
-#include "route.h"
-#include "cirrus.h"
-#include "rioioctl.h"
-#include "param.h"
-
-static void RIOClearUp(struct Port *PortP);
-
-/* Below belongs in func.h */
-int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg);
-
-
-extern struct rio_info *p;
-
-
-int riotopen(struct tty_struct *tty, struct file *filp)
-{
- unsigned int SysPort;
- int repeat_this = 250;
- struct Port *PortP; /* pointer to the port structure */
- unsigned long flags;
- int retval = 0;
-
- func_enter();
-
- /* Make sure driver_data is NULL in case the rio isn't booted jet. Else gs_close
- is going to oops.
- */
- tty->driver_data = NULL;
-
- SysPort = rio_minor(tty);
-
- if (p->RIOFailed) {
- rio_dprintk(RIO_DEBUG_TTY, "System initialisation failed\n");
- func_exit();
- return -ENXIO;
- }
-
- rio_dprintk(RIO_DEBUG_TTY, "port open SysPort %d (mapped:%d)\n", SysPort, p->RIOPortp[SysPort]->Mapped);
-
- /*
- ** Validate that we have received a legitimate request.
- ** Currently, just check that we are opening a port on
- ** a host card that actually exists, and that the port
- ** has been mapped onto a host.
- */
- if (SysPort >= RIO_PORTS) { /* out of range ? */
- rio_dprintk(RIO_DEBUG_TTY, "Illegal port number %d\n", SysPort);
- func_exit();
- return -ENXIO;
- }
-
- /*
- ** Grab pointer to the port stucture
- */
- PortP = p->RIOPortp[SysPort]; /* Get control struc */
- rio_dprintk(RIO_DEBUG_TTY, "PortP: %p\n", PortP);
- if (!PortP->Mapped) { /* we aren't mapped yet! */
- /*
- ** The system doesn't know which RTA this port
- ** corresponds to.
- */
- rio_dprintk(RIO_DEBUG_TTY, "port not mapped into system\n");
- func_exit();
- return -ENXIO;
- }
-
- tty->driver_data = PortP;
-
- PortP->gs.port.tty = tty;
- PortP->gs.port.count++;
-
- rio_dprintk(RIO_DEBUG_TTY, "%d bytes in tx buffer\n", PortP->gs.xmit_cnt);
-
- retval = gs_init_port(&PortP->gs);
- if (retval) {
- PortP->gs.port.count--;
- return -ENXIO;
- }
- /*
- ** If the host hasn't been booted yet, then
- ** fail
- */
- if ((PortP->HostP->Flags & RUN_STATE) != RC_RUNNING) {
- rio_dprintk(RIO_DEBUG_TTY, "Host not running\n");
- func_exit();
- return -ENXIO;
- }
-
- /*
- ** If the RTA has not booted yet and the user has choosen to block
- ** until the RTA is present then we must spin here waiting for
- ** the RTA to boot.
- */
- /* I find the above code a bit hairy. I find the below code
- easier to read and shorter. Now, if it works too that would
- be great... -- REW
- */
- rio_dprintk(RIO_DEBUG_TTY, "Checking if RTA has booted... \n");
- while (!(PortP->HostP->Mapping[PortP->RupNum].Flags & RTA_BOOTED)) {
- if (!PortP->WaitUntilBooted) {
- rio_dprintk(RIO_DEBUG_TTY, "RTA never booted\n");
- func_exit();
- return -ENXIO;
- }
-
- /* Under Linux you'd normally use a wait instead of this
- busy-waiting. I'll stick with the old implementation for
- now. --REW
- */
- if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_TTY, "RTA_wait_for_boot: EINTR in delay \n");
- func_exit();
- return -EINTR;
- }
- if (repeat_this-- <= 0) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for RTA to boot timeout\n");
- func_exit();
- return -EIO;
- }
- }
- rio_dprintk(RIO_DEBUG_TTY, "RTA has been booted\n");
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- if (p->RIOHalted) {
- goto bombout;
- }
-
- /*
- ** If the port is in the final throws of being closed,
- ** we should wait here (politely), waiting
- ** for it to finish, so that it doesn't close us!
- */
- while ((PortP->State & RIO_CLOSING) && !p->RIOHalted) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for RIO_CLOSING to go away\n");
- if (repeat_this-- <= 0) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for not idle closed broken by signal\n");
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- retval = -EINTR;
- goto bombout;
- }
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) {
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- retval = -EINTR;
- goto bombout;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- }
-
- if (!PortP->Mapped) {
- rio_dprintk(RIO_DEBUG_TTY, "Port unmapped while closing!\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- retval = -ENXIO;
- func_exit();
- return retval;
- }
-
- if (p->RIOHalted) {
- goto bombout;
- }
-
-/*
-** 15.10.1998 ARG - ESIL 0761 part fix
-** RIO has it's own CTSFLOW and RTSFLOW flags in 'Config' in the port structure,
-** we need to make sure that the flags are clear when the port is opened.
-*/
- /* Uh? Suppose I turn these on and then another process opens
- the port again? The flags get cleared! Not good. -- REW */
- if (!(PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
- PortP->Config &= ~(RIO_CTSFLOW | RIO_RTSFLOW);
- }
-
- if (!(PortP->firstOpen)) { /* First time ? */
- rio_dprintk(RIO_DEBUG_TTY, "First open for this port\n");
-
-
- PortP->firstOpen++;
- PortP->CookMode = 0; /* XXX RIOCookMode(tp); */
- PortP->InUse = NOT_INUSE;
-
- /* Tentative fix for bug PR27. Didn't work. */
- /* PortP->gs.xmit_cnt = 0; */
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-
- /* Someone explain to me why this delay/config is
- here. If I read the docs correctly the "open"
- command piggybacks the parameters immediately.
- -- REW */
- RIOParam(PortP, RIOC_OPEN, 1, OK_TO_SLEEP); /* Open the port */
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- /*
- ** wait for the port to be not closed.
- */
- while (!(PortP->PortState & PORT_ISOPEN) && !p->RIOHalted) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for PORT_ISOPEN-currently %x\n", PortP->PortState);
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for open to finish broken by signal\n");
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- func_exit();
- return -EINTR;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- }
-
- if (p->RIOHalted) {
- retval = -EIO;
- bombout:
- /* RIOClearUp( PortP ); */
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return retval;
- }
- rio_dprintk(RIO_DEBUG_TTY, "PORT_ISOPEN found\n");
- }
- rio_dprintk(RIO_DEBUG_TTY, "Modem - test for carrier\n");
- /*
- ** ACTION
- ** insert test for carrier here. -- ???
- ** I already see that test here. What's the deal? -- REW
- */
- if ((PortP->gs.port.tty->termios->c_cflag & CLOCAL) ||
- (PortP->ModemState & RIOC_MSVR1_CD)) {
- rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort);
- /*
- tp->tm.c_state |= CARR_ON;
- wakeup((caddr_t) &tp->tm.c_canq);
- */
- PortP->State |= RIO_CARR_ON;
- wake_up_interruptible(&PortP->gs.port.open_wait);
- } else { /* no carrier - wait for DCD */
- /*
- while (!(PortP->gs.port.tty->termios->c_state & CARR_ON) &&
- !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted )
- */
- while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) {
- rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort);
- /*
- PortP->gs.port.tty->termios->c_state |= WOPEN;
- */
- PortP->State |= RIO_WOPEN;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) {
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- /*
- ** ACTION: verify that this is a good thing
- ** to do here. -- ???
- ** I think it's OK. -- REW
- */
- rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr broken by signal\n", SysPort);
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- /*
- tp->tm.c_state &= ~WOPEN;
- */
- PortP->State &= ~RIO_WOPEN;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- func_exit();
- return -EINTR;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- }
- PortP->State &= ~RIO_WOPEN;
- }
- if (p->RIOHalted)
- goto bombout;
- rio_dprintk(RIO_DEBUG_TTY, "Setting RIO_MOPEN\n");
- PortP->State |= RIO_MOPEN;
-
- if (p->RIOHalted)
- goto bombout;
-
- rio_dprintk(RIO_DEBUG_TTY, "high level open done\n");
-
- /*
- ** Count opens for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->opens++;
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- rio_dprintk(RIO_DEBUG_TTY, "Returning from open\n");
- func_exit();
- return 0;
-}
-
-/*
-** RIOClose the port.
-** The operating system thinks that this is last close for the device.
-** As there are two interfaces to the port (Modem and tty), we need to
-** check that both are closed before we close the device.
-*/
-int riotclose(void *ptr)
-{
- struct Port *PortP = ptr; /* pointer to the port structure */
- int deleted = 0;
- int try = -1; /* Disable the timeouts by setting them to -1 */
- int repeat_this = -1; /* Congrats to those having 15 years of
- uptime! (You get to break the driver.) */
- unsigned long end_time;
- struct tty_struct *tty;
- unsigned long flags;
- int rv = 0;
-
- rio_dprintk(RIO_DEBUG_TTY, "port close SysPort %d\n", PortP->PortNum);
-
- /* PortP = p->RIOPortp[SysPort]; */
- rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP);
- /* tp = PortP->TtyP; *//* Get tty */
- tty = PortP->gs.port.tty;
- rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty);
-
- if (PortP->gs.closing_wait)
- end_time = jiffies + PortP->gs.closing_wait;
- else
- end_time = jiffies + MAX_SCHEDULE_TIMEOUT;
-
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- /*
- ** Setting this flag will make any process trying to open
- ** this port block until we are complete closing it.
- */
- PortP->State |= RIO_CLOSING;
-
- if ((PortP->State & RIO_DELETED)) {
- rio_dprintk(RIO_DEBUG_TTY, "Close on deleted RTA\n");
- deleted = 1;
- }
-
- if (p->RIOHalted) {
- RIOClearUp(PortP);
- rv = -EIO;
- goto close_end;
- }
-
- rio_dprintk(RIO_DEBUG_TTY, "Clear bits\n");
- /*
- ** clear the open bits for this device
- */
- PortP->State &= ~RIO_MOPEN;
- PortP->State &= ~RIO_CARR_ON;
- PortP->ModemState &= ~RIOC_MSVR1_CD;
- /*
- ** If the device was open as both a Modem and a tty line
- ** then we need to wimp out here, as the port has not really
- ** been finally closed (gee, whizz!) The test here uses the
- ** bit for the OTHER mode of operation, to see if THAT is
- ** still active!
- */
- if ((PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
- /*
- ** The port is still open for the other task -
- ** return, pretending that we are still active.
- */
- rio_dprintk(RIO_DEBUG_TTY, "Channel %d still open !\n", PortP->PortNum);
- PortP->State &= ~RIO_CLOSING;
- if (PortP->firstOpen)
- PortP->firstOpen--;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return -EIO;
- }
-
- rio_dprintk(RIO_DEBUG_TTY, "Closing down - everything must go!\n");
-
- PortP->State &= ~RIO_DYNOROD;
-
- /*
- ** This is where we wait for the port
- ** to drain down before closing. Bye-bye....
- ** (We never meant to do this)
- */
- rio_dprintk(RIO_DEBUG_TTY, "Timeout 1 starts\n");
-
- if (!deleted)
- while ((PortP->InUse != NOT_INUSE) && !p->RIOHalted && (PortP->TxBufferIn != PortP->TxBufferOut)) {
- if (repeat_this-- <= 0) {
- rv = -EINTR;
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for not idle closed broken by signal\n");
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- goto close_end;
- }
- rio_dprintk(RIO_DEBUG_TTY, "Calling timeout to flush in closing\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (RIODelay_ni(PortP, HUNDRED_MS * 10) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_TTY, "RTA EINTR in delay \n");
- rv = -EINTR;
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- goto close_end;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- }
-
- PortP->TxBufferIn = PortP->TxBufferOut = 0;
- repeat_this = 0xff;
-
- PortP->InUse = 0;
- if ((PortP->State & (RIO_LOPEN | RIO_MOPEN))) {
- /*
- ** The port has been re-opened for the other task -
- ** return, pretending that we are still active.
- */
- rio_dprintk(RIO_DEBUG_TTY, "Channel %d re-open!\n", PortP->PortNum);
- PortP->State &= ~RIO_CLOSING;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (PortP->firstOpen)
- PortP->firstOpen--;
- return -EIO;
- }
-
- if (p->RIOHalted) {
- RIOClearUp(PortP);
- goto close_end;
- }
-
- /* Can't call RIOShortCommand with the port locked. */
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
-
- if (RIOShortCommand(p, PortP, RIOC_CLOSE, 1, 0) == RIO_FAIL) {
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- goto close_end;
- }
-
- if (!deleted)
- while (try && (PortP->PortState & PORT_ISOPEN)) {
- try--;
- if (time_after(jiffies, end_time)) {
- rio_dprintk(RIO_DEBUG_TTY, "Run out of tries - force the bugger shut!\n");
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- break;
- }
- rio_dprintk(RIO_DEBUG_TTY, "Close: PortState:ISOPEN is %d\n", PortP->PortState & PORT_ISOPEN);
-
- if (p->RIOHalted) {
- RIOClearUp(PortP);
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- goto close_end;
- }
- if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) {
- rio_dprintk(RIO_DEBUG_TTY, "RTA EINTR in delay \n");
- RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE);
- break;
- }
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- rio_dprintk(RIO_DEBUG_TTY, "Close: try was %d on completion\n", try);
-
- /* RIOPreemptiveCmd(p, PortP, RIOC_FCLOSE); */
-
-/*
-** 15.10.1998 ARG - ESIL 0761 part fix
-** RIO has it's own CTSFLOW and RTSFLOW flags in 'Config' in the port structure,** we need to make sure that the flags are clear when the port is opened.
-*/
- PortP->Config &= ~(RIO_CTSFLOW | RIO_RTSFLOW);
-
- /*
- ** Count opens for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->closes++;
-
-close_end:
- /* XXX: Why would a "DELETED" flag be reset here? I'd have
- thought that a "deleted" flag means that the port was
- permanently gone, but here we can make it reappear by it
- being in close during the "deletion".
- */
- PortP->State &= ~(RIO_CLOSING | RIO_DELETED);
- if (PortP->firstOpen)
- PortP->firstOpen--;
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- rio_dprintk(RIO_DEBUG_TTY, "Return from close\n");
- return rv;
-}
-
-
-
-static void RIOClearUp(struct Port *PortP)
-{
- rio_dprintk(RIO_DEBUG_TTY, "RIOHalted set\n");
- PortP->Config = 0; /* Direct semaphore */
- PortP->PortState = 0;
- PortP->firstOpen = 0;
- PortP->FlushCmdBodge = 0;
- PortP->ModemState = PortP->CookMode = 0;
- PortP->Mapped = 0;
- PortP->WflushFlag = 0;
- PortP->MagicFlags = 0;
- PortP->RxDataStart = 0;
- PortP->TxBufferIn = 0;
- PortP->TxBufferOut = 0;
-}
-
-/*
-** Put a command onto a port.
-** The PortPointer, command, length and arg are passed.
-** The len is the length *inclusive* of the command byte,
-** and so for a command that takes no data, len==1.
-** The arg is a single byte, and is only used if len==2.
-** Other values of len aren't allowed, and will cause
-** a panic.
-*/
-int RIOShortCommand(struct rio_info *p, struct Port *PortP, int command, int len, int arg)
-{
- struct PKT __iomem *PacketP;
- int retries = 20; /* at 10 per second -> 2 seconds */
- unsigned long flags;
-
- rio_dprintk(RIO_DEBUG_TTY, "entering shortcommand.\n");
-
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_TTY, "Short command to deleted RTA ignored\n");
- return RIO_FAIL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
-
- /*
- ** If the port is in use for pre-emptive command, then wait for it to
- ** be free again.
- */
- while ((PortP->InUse != NOT_INUSE) && !p->RIOHalted) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting for not in use (%d)\n", retries);
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (retries-- <= 0) {
- return RIO_FAIL;
- }
- if (RIODelay_ni(PortP, HUNDRED_MS) == RIO_FAIL) {
- return RIO_FAIL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- }
- if (PortP->State & RIO_DELETED) {
- rio_dprintk(RIO_DEBUG_TTY, "Short command to deleted RTA ignored\n");
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return RIO_FAIL;
- }
-
- while (!can_add_transmit(&PacketP, PortP) && !p->RIOHalted) {
- rio_dprintk(RIO_DEBUG_TTY, "Waiting to add short command to queue (%d)\n", retries);
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- if (retries-- <= 0) {
- rio_dprintk(RIO_DEBUG_TTY, "out of tries. Failing\n");
- return RIO_FAIL;
- }
- if (RIODelay_ni(PortP, HUNDRED_MS) == RIO_FAIL) {
- return RIO_FAIL;
- }
- rio_spin_lock_irqsave(&PortP->portSem, flags);
- }
-
- if (p->RIOHalted) {
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return RIO_FAIL;
- }
-
- /*
- ** set the command byte and the argument byte
- */
- writeb(command, &PacketP->data[0]);
-
- if (len == 2)
- writeb(arg, &PacketP->data[1]);
-
- /*
- ** set the length of the packet and set the command bit.
- */
- writeb(PKT_CMD_BIT | len, &PacketP->len);
-
- add_transmit(PortP);
- /*
- ** Count characters transmitted for port statistics reporting
- */
- if (PortP->statsGather)
- PortP->txchars += len;
-
- rio_spin_unlock_irqrestore(&PortP->portSem, flags);
- return p->RIOHalted ? RIO_FAIL : ~RIO_FAIL;
-}
-
-
diff --git a/drivers/char/rio/route.h b/drivers/char/rio/route.h
deleted file mode 100644
index 46e963771c3..00000000000
--- a/drivers/char/rio/route.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* R O U T E H E A D E R
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra / Jeremy Rolls
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _route_h
-#define _route_h
-
-#define MAX_LINKS 4
-#define MAX_NODES 17 /* Maximum nodes in a subnet */
-#define NODE_BYTES ((MAX_NODES / 8) + 1) /* Number of bytes needed for
- 1 bit per node */
-#define ROUTE_DATA_SIZE (NODE_BYTES + 2) /* Number of bytes for complete
- info about cost etc. */
-#define ROUTES_PER_PACKET ((PKT_MAX_DATA_LEN -2)/ ROUTE_DATA_SIZE)
- /* Number of nodes we can squeeze
- into one packet */
-#define MAX_TOPOLOGY_PACKETS (MAX_NODES / ROUTES_PER_PACKET + 1)
-/************************************************
- * Define the types of command for the ROUTE RUP.
- ************************************************/
-#define ROUTE_REQUEST 0 /* Request an ID */
-#define ROUTE_FOAD 1 /* Kill the RTA */
-#define ROUTE_ALREADY 2 /* ID given already */
-#define ROUTE_USED 3 /* All ID's used */
-#define ROUTE_ALLOCATE 4 /* Here it is */
-#define ROUTE_REQ_TOP 5 /* I bet you didn't expect....
- the Topological Inquisition */
-#define ROUTE_TOPOLOGY 6 /* Topology request answered FD */
-/*******************************************************************
- * Define the Route Map Structure
- *
- * The route map gives a pointer to a Link Structure to use.
- * This allows Disconnected Links to be checked quickly
- ******************************************************************/
-typedef struct COST_ROUTE COST_ROUTE;
-struct COST_ROUTE {
- unsigned char cost; /* Cost down this link */
- unsigned char route[NODE_BYTES]; /* Nodes through this route */
-};
-
-typedef struct ROUTE_STR ROUTE_STR;
-struct ROUTE_STR {
- COST_ROUTE cost_route[MAX_LINKS];
- /* cost / route for this link */
- ushort favoured; /* favoured link */
-};
-
-
-#define NO_LINK (short) 5 /* Link unattached */
-#define ROUTE_NO_ID (short) 100 /* No Id */
-#define ROUTE_DISCONNECT (ushort) 0xff /* Not connected */
-#define ROUTE_INTERCONNECT (ushort) 0x40 /* Sub-net interconnect */
-
-
-#define SYNC_RUP (ushort) 255
-#define COMMAND_RUP (ushort) 254
-#define ERROR_RUP (ushort) 253
-#define POLL_RUP (ushort) 252
-#define BOOT_RUP (ushort) 251
-#define ROUTE_RUP (ushort) 250
-#define STATUS_RUP (ushort) 249
-#define POWER_RUP (ushort) 248
-
-#define HIGHEST_RUP (ushort) 255 /* Set to Top one */
-#define LOWEST_RUP (ushort) 248 /* Set to bottom one */
-
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/rup.h b/drivers/char/rio/rup.h
deleted file mode 100644
index 4ae90cb207a..00000000000
--- a/drivers/char/rio/rup.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/****************************************************************************
- ******* *******
- ******* R U P S T R U C T U R E
- ******* *******
- ****************************************************************************
-
- Author : Ian Nandhra
- Date :
-
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Version : 0.01
-
-
- Mods
- ----------------------------------------------------------------------------
- Date By Description
- ----------------------------------------------------------------------------
-
- ***************************************************************************/
-
-#ifndef _rup_h
-#define _rup_h 1
-
-#define MAX_RUP ((short) 16)
-#define PKTS_PER_RUP ((short) 2) /* They are always used in pairs */
-
-/*************************************************
- * Define all the packet request stuff
- ************************************************/
-#define TX_RUP_INACTIVE 0 /* Nothing to transmit */
-#define TX_PACKET_READY 1 /* Transmit packet ready */
-#define TX_LOCK_RUP 2 /* Transmit side locked */
-
-#define RX_RUP_INACTIVE 0 /* Nothing received */
-#define RX_PACKET_READY 1 /* Packet received */
-
-#define RUP_NO_OWNER 0xff /* RUP not owned by any process */
-
-struct RUP {
- u16 txpkt; /* Outgoing packet */
- u16 rxpkt; /* Incoming packet */
- u16 link; /* Which link to send down? */
- u8 rup_dest_unit[2]; /* Destination unit */
- u16 handshake; /* For handshaking */
- u16 timeout; /* Timeout */
- u16 status; /* Status */
- u16 txcontrol; /* Transmit control */
- u16 rxcontrol; /* Receive control */
-};
-
-#endif
-
-/*********** end of file ***********/
diff --git a/drivers/char/rio/unixrup.h b/drivers/char/rio/unixrup.h
deleted file mode 100644
index 7abf0cba0f2..00000000000
--- a/drivers/char/rio/unixrup.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
-** -----------------------------------------------------------------------------
-**
-** Perle Specialix driver for Linux
-** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Module : unixrup.h
-** SID : 1.2
-** Last Modified : 11/6/98 11:34:20
-** Retrieved : 11/6/98 11:34:22
-**
-** ident @(#)unixrup.h 1.2
-**
-** -----------------------------------------------------------------------------
-*/
-
-#ifndef __rio_unixrup_h__
-#define __rio_unixrup_h__
-
-/*
-** UnixRup data structure. This contains pointers to actual RUPs on the
-** host card, and all the command/boot control stuff.
-*/
-struct UnixRup {
- struct CmdBlk *CmdsWaitingP; /* Commands waiting to be done */
- struct CmdBlk *CmdPendingP; /* The command currently being sent */
- struct RUP __iomem *RupP; /* the Rup to send it to */
- unsigned int Id; /* Id number */
- unsigned int BaseSysPort; /* SysPort of first tty on this RTA */
- unsigned int ModTypes; /* Modules on this RTA */
- spinlock_t RupLock; /* Lock structure for MPX */
- /* struct lockb RupLock; *//* Lock structure for MPX */
-};
-
-#endif /* __rio_unixrup_h__ */
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
deleted file mode 100644
index af4de1fe844..00000000000
--- a/drivers/char/riscom8.c
+++ /dev/null
@@ -1,1560 +0,0 @@
-/*
- * linux/drivers/char/riscom.c -- RISCom/8 multiport serial driver.
- *
- * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others. The RISCom/8 card
- * programming info was obtained from various drivers for other OSes
- * (FreeBSD, ISC, etc), but no source code from those drivers were
- * directly included in this driver.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Revision 1.1
- *
- * ChangeLog:
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 27-Jun-2001
- * - get rid of check_region and several cleanups
- */
-
-#include <linux/module.h>
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/tty_flip.h>
-#include <linux/spinlock.h>
-#include <linux/device.h>
-
-#include <linux/uaccess.h>
-
-#include "riscom8.h"
-#include "riscom8_reg.h"
-
-/* Am I paranoid or not ? ;-) */
-#define RISCOM_PARANOIA_CHECK
-
-/*
- * Crazy InteliCom/8 boards sometimes have swapped CTS & DSR signals.
- * You can slightly speed up things by #undefing the following option,
- * if you are REALLY sure that your board is correct one.
- */
-
-#define RISCOM_BRAIN_DAMAGED_CTS
-
-/*
- * The following defines are mostly for testing purposes. But if you need
- * some nice reporting in your syslog, you can define them also.
- */
-#undef RC_REPORT_FIFO
-#undef RC_REPORT_OVERRUN
-
-
-#define RISCOM_LEGAL_FLAGS \
- (ASYNC_HUP_NOTIFY | ASYNC_SAK | ASYNC_SPLIT_TERMIOS | \
- ASYNC_SPD_HI | ASYNC_SPEED_VHI | ASYNC_SESSION_LOCKOUT | \
- ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP)
-
-static struct tty_driver *riscom_driver;
-
-static DEFINE_SPINLOCK(riscom_lock);
-
-static struct riscom_board rc_board[RC_NBOARD] = {
- {
- .base = RC_IOBASE1,
- },
- {
- .base = RC_IOBASE2,
- },
- {
- .base = RC_IOBASE3,
- },
- {
- .base = RC_IOBASE4,
- },
-};
-
-static struct riscom_port rc_port[RC_NBOARD * RC_NPORT];
-
-/* RISCom/8 I/O ports addresses (without address translation) */
-static unsigned short rc_ioport[] = {
-#if 1
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c,
-#else
- 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0c, 0x10,
- 0x11, 0x12, 0x18, 0x28, 0x31, 0x32, 0x39, 0x3a, 0x40, 0x41, 0x61, 0x62,
- 0x63, 0x64, 0x6b, 0x70, 0x71, 0x78, 0x7a, 0x7b, 0x7f, 0x100, 0x101
-#endif
-};
-#define RC_NIOPORT ARRAY_SIZE(rc_ioport)
-
-
-static int rc_paranoia_check(struct riscom_port const *port,
- char *name, const char *routine)
-{
-#ifdef RISCOM_PARANOIA_CHECK
- static const char badmagic[] = KERN_INFO
- "rc: Warning: bad riscom port magic number for device %s in %s\n";
- static const char badinfo[] = KERN_INFO
- "rc: Warning: null riscom port for device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != RISCOM8_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-#endif
- return 0;
-}
-
-/*
- *
- * Service functions for RISCom/8 driver.
- *
- */
-
-/* Get board number from pointer */
-static inline int board_No(struct riscom_board const *bp)
-{
- return bp - rc_board;
-}
-
-/* Get port number from pointer */
-static inline int port_No(struct riscom_port const *port)
-{
- return RC_PORT(port - rc_port);
-}
-
-/* Get pointer to board from pointer to port */
-static inline struct riscom_board *port_Board(struct riscom_port const *port)
-{
- return &rc_board[RC_BOARD(port - rc_port)];
-}
-
-/* Input Byte from CL CD180 register */
-static inline unsigned char rc_in(struct riscom_board const *bp,
- unsigned short reg)
-{
- return inb(bp->base + RC_TO_ISA(reg));
-}
-
-/* Output Byte to CL CD180 register */
-static inline void rc_out(struct riscom_board const *bp, unsigned short reg,
- unsigned char val)
-{
- outb(val, bp->base + RC_TO_ISA(reg));
-}
-
-/* Wait for Channel Command Register ready */
-static void rc_wait_CCR(struct riscom_board const *bp)
-{
- unsigned long delay;
-
- /* FIXME: need something more descriptive then 100000 :) */
- for (delay = 100000; delay; delay--)
- if (!rc_in(bp, CD180_CCR))
- return;
-
- printk(KERN_INFO "rc%d: Timeout waiting for CCR.\n", board_No(bp));
-}
-
-/*
- * RISCom/8 probe functions.
- */
-
-static int rc_request_io_range(struct riscom_board * const bp)
-{
- int i;
-
- for (i = 0; i < RC_NIOPORT; i++)
- if (!request_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1,
- "RISCom/8")) {
- goto out_release;
- }
- return 0;
-out_release:
- printk(KERN_INFO "rc%d: Skipping probe at 0x%03x. IO address in use.\n",
- board_No(bp), bp->base);
- while (--i >= 0)
- release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
- return 1;
-}
-
-static void rc_release_io_range(struct riscom_board * const bp)
-{
- int i;
-
- for (i = 0; i < RC_NIOPORT; i++)
- release_region(RC_TO_ISA(rc_ioport[i]) + bp->base, 1);
-}
-
-/* Reset and setup CD180 chip */
-static void __init rc_init_CD180(struct riscom_board const *bp)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- rc_out(bp, RC_CTOUT, 0); /* Clear timeout */
- rc_wait_CCR(bp); /* Wait for CCR ready */
- rc_out(bp, CD180_CCR, CCR_HARDRESET); /* Reset CD180 chip */
- spin_unlock_irqrestore(&riscom_lock, flags);
- msleep(50); /* Delay 0.05 sec */
- spin_lock_irqsave(&riscom_lock, flags);
- rc_out(bp, CD180_GIVR, RC_ID); /* Set ID for this chip */
- rc_out(bp, CD180_GICR, 0); /* Clear all bits */
- rc_out(bp, CD180_PILR1, RC_ACK_MINT); /* Prio for modem intr */
- rc_out(bp, CD180_PILR2, RC_ACK_TINT); /* Prio for tx intr */
- rc_out(bp, CD180_PILR3, RC_ACK_RINT); /* Prio for rx intr */
-
- /* Setting up prescaler. We need 4 ticks per 1 ms */
- rc_out(bp, CD180_PPRH, (RC_OSCFREQ/(1000000/RISCOM_TPS)) >> 8);
- rc_out(bp, CD180_PPRL, (RC_OSCFREQ/(1000000/RISCOM_TPS)) & 0xff);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-/* Main probing routine, also sets irq. */
-static int __init rc_probe(struct riscom_board *bp)
-{
- unsigned char val1, val2;
- int irqs = 0;
- int retries;
-
- bp->irq = 0;
-
- if (rc_request_io_range(bp))
- return 1;
-
- /* Are the I/O ports here ? */
- rc_out(bp, CD180_PPRL, 0x5a);
- outb(0xff, 0x80);
- val1 = rc_in(bp, CD180_PPRL);
- rc_out(bp, CD180_PPRL, 0xa5);
- outb(0x00, 0x80);
- val2 = rc_in(bp, CD180_PPRL);
-
- if ((val1 != 0x5a) || (val2 != 0xa5)) {
- printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not found.\n",
- board_No(bp), bp->base);
- goto out_release;
- }
-
- /* It's time to find IRQ for this board */
- for (retries = 0; retries < 5 && irqs <= 0; retries++) {
- irqs = probe_irq_on();
- rc_init_CD180(bp); /* Reset CD180 chip */
- rc_out(bp, CD180_CAR, 2); /* Select port 2 */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_TXEN); /* Enable transmitter */
- rc_out(bp, CD180_IER, IER_TXRDY);/* Enable tx empty intr */
- msleep(50);
- irqs = probe_irq_off(irqs);
- val1 = rc_in(bp, RC_BSR); /* Get Board Status reg */
- val2 = rc_in(bp, RC_ACK_TINT); /* ACK interrupt */
- rc_init_CD180(bp); /* Reset CD180 again */
-
- if ((val1 & RC_BSR_TINT) || (val2 != (RC_ID | GIVR_IT_TX))) {
- printk(KERN_ERR "rc%d: RISCom/8 Board at 0x%03x not "
- "found.\n", board_No(bp), bp->base);
- goto out_release;
- }
- }
-
- if (irqs <= 0) {
- printk(KERN_ERR "rc%d: Can't find IRQ for RISCom/8 board "
- "at 0x%03x.\n", board_No(bp), bp->base);
- goto out_release;
- }
- bp->irq = irqs;
- bp->flags |= RC_BOARD_PRESENT;
-
- printk(KERN_INFO "rc%d: RISCom/8 Rev. %c board detected at "
- "0x%03x, IRQ %d.\n",
- board_No(bp),
- (rc_in(bp, CD180_GFRCR) & 0x0f) + 'A', /* Board revision */
- bp->base, bp->irq);
-
- return 0;
-out_release:
- rc_release_io_range(bp);
- return 1;
-}
-
-/*
- *
- * Interrupt processing routines.
- *
- */
-
-static struct riscom_port *rc_get_port(struct riscom_board const *bp,
- unsigned char const *what)
-{
- unsigned char channel;
- struct riscom_port *port;
-
- channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF;
- if (channel < CD180_NCH) {
- port = &rc_port[board_No(bp) * RC_NPORT + channel];
- if (port->port.flags & ASYNC_INITIALIZED)
- return port;
- }
- printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n",
- board_No(bp), what, channel);
- return NULL;
-}
-
-static void rc_receive_exc(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char status;
- unsigned char ch, flag;
-
- port = rc_get_port(bp, "Receive");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
-#ifdef RC_REPORT_OVERRUN
- status = rc_in(bp, CD180_RCSR);
- if (status & RCSR_OE)
- port->overrun++;
- status &= port->mark_mask;
-#else
- status = rc_in(bp, CD180_RCSR) & port->mark_mask;
-#endif
- ch = rc_in(bp, CD180_RDR);
- if (!status)
- goto out;
- if (status & RCSR_TOUT) {
- printk(KERN_WARNING "rc%d: port %d: Receiver timeout. "
- "Hardware problems ?\n",
- board_No(bp), port_No(port));
- goto out;
-
- } else if (status & RCSR_BREAK) {
- printk(KERN_INFO "rc%d: port %d: Handling break...\n",
- board_No(bp), port_No(port));
- flag = TTY_BREAK;
- if (tty && (port->port.flags & ASYNC_SAK))
- do_SAK(tty);
-
- } else if (status & RCSR_PE)
- flag = TTY_PARITY;
-
- else if (status & RCSR_FE)
- flag = TTY_FRAME;
-
- else if (status & RCSR_OE)
- flag = TTY_OVERRUN;
- else
- flag = TTY_NORMAL;
-
- if (tty) {
- tty_insert_flip_char(tty, ch, flag);
- tty_flip_buffer_push(tty);
- }
-out:
- tty_kref_put(tty);
-}
-
-static void rc_receive(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char count;
-
- port = rc_get_port(bp, "Receive");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
- count = rc_in(bp, CD180_RDCR);
-
-#ifdef RC_REPORT_FIFO
- port->hits[count > 8 ? 9 : count]++;
-#endif
-
- while (count--) {
- u8 ch = rc_in(bp, CD180_RDR);
- if (tty)
- tty_insert_flip_char(tty, ch, TTY_NORMAL);
- }
- if (tty) {
- tty_flip_buffer_push(tty);
- tty_kref_put(tty);
- }
-}
-
-static void rc_transmit(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char count;
-
- port = rc_get_port(bp, "Transmit");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
- if (port->IER & IER_TXEMPTY) {
- /* FIFO drained */
- rc_out(bp, CD180_CAR, port_No(port));
- port->IER &= ~IER_TXEMPTY;
- rc_out(bp, CD180_IER, port->IER);
- goto out;
- }
-
- if ((port->xmit_cnt <= 0 && !port->break_length)
- || (tty && (tty->stopped || tty->hw_stopped))) {
- rc_out(bp, CD180_CAR, port_No(port));
- port->IER &= ~IER_TXRDY;
- rc_out(bp, CD180_IER, port->IER);
- goto out;
- }
-
- if (port->break_length) {
- if (port->break_length > 0) {
- if (port->COR2 & COR2_ETC) {
- rc_out(bp, CD180_TDR, CD180_C_ESC);
- rc_out(bp, CD180_TDR, CD180_C_SBRK);
- port->COR2 &= ~COR2_ETC;
- }
- count = min_t(int, port->break_length, 0xff);
- rc_out(bp, CD180_TDR, CD180_C_ESC);
- rc_out(bp, CD180_TDR, CD180_C_DELAY);
- rc_out(bp, CD180_TDR, count);
- port->break_length -= count;
- if (port->break_length == 0)
- port->break_length--;
- } else {
- rc_out(bp, CD180_TDR, CD180_C_ESC);
- rc_out(bp, CD180_TDR, CD180_C_EBRK);
- rc_out(bp, CD180_COR2, port->COR2);
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_CORCHG2);
- port->break_length = 0;
- }
- goto out;
- }
-
- count = CD180_NFIFO;
- do {
- rc_out(bp, CD180_TDR, port->port.xmit_buf[port->xmit_tail++]);
- port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
- if (--port->xmit_cnt <= 0)
- break;
- } while (--count > 0);
-
- if (port->xmit_cnt <= 0) {
- rc_out(bp, CD180_CAR, port_No(port));
- port->IER &= ~IER_TXRDY;
- rc_out(bp, CD180_IER, port->IER);
- }
- if (tty && port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
-out:
- tty_kref_put(tty);
-}
-
-static void rc_check_modem(struct riscom_board const *bp)
-{
- struct riscom_port *port;
- struct tty_struct *tty;
- unsigned char mcr;
-
- port = rc_get_port(bp, "Modem");
- if (port == NULL)
- return;
-
- tty = tty_port_tty_get(&port->port);
-
- mcr = rc_in(bp, CD180_MCR);
- if (mcr & MCR_CDCHG) {
- if (rc_in(bp, CD180_MSVR) & MSVR_CD)
- wake_up_interruptible(&port->port.open_wait);
- else if (tty)
- tty_hangup(tty);
- }
-
-#ifdef RISCOM_BRAIN_DAMAGED_CTS
- if (mcr & MCR_CTSCHG) {
- if (rc_in(bp, CD180_MSVR) & MSVR_CTS) {
- port->IER |= IER_TXRDY;
- if (tty) {
- tty->hw_stopped = 0;
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
- }
- } else {
- if (tty)
- tty->hw_stopped = 1;
- port->IER &= ~IER_TXRDY;
- }
- rc_out(bp, CD180_IER, port->IER);
- }
- if (mcr & MCR_DSRCHG) {
- if (rc_in(bp, CD180_MSVR) & MSVR_DSR) {
- port->IER |= IER_TXRDY;
- if (tty) {
- tty->hw_stopped = 0;
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
- }
- } else {
- if (tty)
- tty->hw_stopped = 1;
- port->IER &= ~IER_TXRDY;
- }
- rc_out(bp, CD180_IER, port->IER);
- }
-#endif /* RISCOM_BRAIN_DAMAGED_CTS */
-
- /* Clear change bits */
- rc_out(bp, CD180_MCR, 0);
- tty_kref_put(tty);
-}
-
-/* The main interrupt processing routine */
-static irqreturn_t rc_interrupt(int dummy, void *dev_id)
-{
- unsigned char status;
- unsigned char ack;
- struct riscom_board *bp = dev_id;
- unsigned long loop = 0;
- int handled = 0;
-
- if (!(bp->flags & RC_BOARD_ACTIVE))
- return IRQ_NONE;
-
- while ((++loop < 16) && ((status = ~(rc_in(bp, RC_BSR))) &
- (RC_BSR_TOUT | RC_BSR_TINT |
- RC_BSR_MINT | RC_BSR_RINT))) {
- handled = 1;
- if (status & RC_BSR_TOUT)
- printk(KERN_WARNING "rc%d: Got timeout. Hardware "
- "error?\n", board_No(bp));
- else if (status & RC_BSR_RINT) {
- ack = rc_in(bp, RC_ACK_RINT);
- if (ack == (RC_ID | GIVR_IT_RCV))
- rc_receive(bp);
- else if (ack == (RC_ID | GIVR_IT_REXC))
- rc_receive_exc(bp);
- else
- printk(KERN_WARNING "rc%d: Bad receive ack "
- "0x%02x.\n",
- board_No(bp), ack);
- } else if (status & RC_BSR_TINT) {
- ack = rc_in(bp, RC_ACK_TINT);
- if (ack == (RC_ID | GIVR_IT_TX))
- rc_transmit(bp);
- else
- printk(KERN_WARNING "rc%d: Bad transmit ack "
- "0x%02x.\n",
- board_No(bp), ack);
- } else /* if (status & RC_BSR_MINT) */ {
- ack = rc_in(bp, RC_ACK_MINT);
- if (ack == (RC_ID | GIVR_IT_MODEM))
- rc_check_modem(bp);
- else
- printk(KERN_WARNING "rc%d: Bad modem ack "
- "0x%02x.\n",
- board_No(bp), ack);
- }
- rc_out(bp, CD180_EOIR, 0); /* Mark end of interrupt */
- rc_out(bp, RC_CTOUT, 0); /* Clear timeout flag */
- }
- return IRQ_RETVAL(handled);
-}
-
-/*
- * Routines for open & close processing.
- */
-
-/* Called with disabled interrupts */
-static int rc_setup_board(struct riscom_board *bp)
-{
- int error;
-
- if (bp->flags & RC_BOARD_ACTIVE)
- return 0;
-
- error = request_irq(bp->irq, rc_interrupt, IRQF_DISABLED,
- "RISCom/8", bp);
- if (error)
- return error;
-
- rc_out(bp, RC_CTOUT, 0); /* Just in case */
- bp->DTR = ~0;
- rc_out(bp, RC_DTR, bp->DTR); /* Drop DTR on all ports */
-
- bp->flags |= RC_BOARD_ACTIVE;
-
- return 0;
-}
-
-/* Called with disabled interrupts */
-static void rc_shutdown_board(struct riscom_board *bp)
-{
- if (!(bp->flags & RC_BOARD_ACTIVE))
- return;
-
- bp->flags &= ~RC_BOARD_ACTIVE;
-
- free_irq(bp->irq, NULL);
-
- bp->DTR = ~0;
- rc_out(bp, RC_DTR, bp->DTR); /* Drop DTR on all ports */
-
-}
-
-/*
- * Setting up port characteristics.
- * Must be called with disabled interrupts
- */
-static void rc_change_speed(struct tty_struct *tty, struct riscom_board *bp,
- struct riscom_port *port)
-{
- unsigned long baud;
- long tmp;
- unsigned char cor1 = 0, cor3 = 0;
- unsigned char mcor1 = 0, mcor2 = 0;
-
- port->IER = 0;
- port->COR2 = 0;
- port->MSVR = MSVR_RTS;
-
- baud = tty_get_baud_rate(tty);
-
- /* Select port on the board */
- rc_out(bp, CD180_CAR, port_No(port));
-
- if (!baud) {
- /* Drop DTR & exit */
- bp->DTR |= (1u << port_No(port));
- rc_out(bp, RC_DTR, bp->DTR);
- return;
- } else {
- /* Set DTR on */
- bp->DTR &= ~(1u << port_No(port));
- rc_out(bp, RC_DTR, bp->DTR);
- }
-
- /*
- * Now we must calculate some speed depended things
- */
-
- /* Set baud rate for port */
- tmp = (((RC_OSCFREQ + baud/2) / baud +
- CD180_TPC/2) / CD180_TPC);
-
- rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff);
- rc_out(bp, CD180_TBPRH, (tmp >> 8) & 0xff);
- rc_out(bp, CD180_RBPRL, tmp & 0xff);
- rc_out(bp, CD180_TBPRL, tmp & 0xff);
-
- baud = (baud + 5) / 10; /* Estimated CPS */
-
- /* Two timer ticks seems enough to wakeup something like SLIP driver */
- tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;
- port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
- SERIAL_XMIT_SIZE - 1 : tmp);
-
- /* Receiver timeout will be transmission time for 1.5 chars */
- tmp = (RISCOM_TPS + RISCOM_TPS/2 + baud/2) / baud;
- tmp = (tmp > 0xff) ? 0xff : tmp;
- rc_out(bp, CD180_RTPR, tmp);
-
- switch (C_CSIZE(tty)) {
- case CS5:
- cor1 |= COR1_5BITS;
- break;
- case CS6:
- cor1 |= COR1_6BITS;
- break;
- case CS7:
- cor1 |= COR1_7BITS;
- break;
- case CS8:
- cor1 |= COR1_8BITS;
- break;
- }
- if (C_CSTOPB(tty))
- cor1 |= COR1_2SB;
-
- cor1 |= COR1_IGNORE;
- if (C_PARENB(tty)) {
- cor1 |= COR1_NORMPAR;
- if (C_PARODD(tty))
- cor1 |= COR1_ODDP;
- if (I_INPCK(tty))
- cor1 &= ~COR1_IGNORE;
- }
- /* Set marking of some errors */
- port->mark_mask = RCSR_OE | RCSR_TOUT;
- if (I_INPCK(tty))
- port->mark_mask |= RCSR_FE | RCSR_PE;
- if (I_BRKINT(tty) || I_PARMRK(tty))
- port->mark_mask |= RCSR_BREAK;
- if (I_IGNPAR(tty))
- port->mark_mask &= ~(RCSR_FE | RCSR_PE);
- if (I_IGNBRK(tty)) {
- port->mark_mask &= ~RCSR_BREAK;
- if (I_IGNPAR(tty))
- /* Real raw mode. Ignore all */
- port->mark_mask &= ~RCSR_OE;
- }
- /* Enable Hardware Flow Control */
- if (C_CRTSCTS(tty)) {
-#ifdef RISCOM_BRAIN_DAMAGED_CTS
- port->IER |= IER_DSR | IER_CTS;
- mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
- mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
- tty->hw_stopped = !(rc_in(bp, CD180_MSVR) &
- (MSVR_CTS|MSVR_DSR));
-#else
- port->COR2 |= COR2_CTSAE;
-#endif
- }
- /* Enable Software Flow Control. FIXME: I'm not sure about this */
- /* Some people reported that it works, but I still doubt */
- if (I_IXON(tty)) {
- port->COR2 |= COR2_TXIBE;
- cor3 |= (COR3_FCT | COR3_SCDE);
- if (I_IXANY(tty))
- port->COR2 |= COR2_IXM;
- rc_out(bp, CD180_SCHR1, START_CHAR(tty));
- rc_out(bp, CD180_SCHR2, STOP_CHAR(tty));
- rc_out(bp, CD180_SCHR3, START_CHAR(tty));
- rc_out(bp, CD180_SCHR4, STOP_CHAR(tty));
- }
- if (!C_CLOCAL(tty)) {
- /* Enable CD check */
- port->IER |= IER_CD;
- mcor1 |= MCOR1_CDZD;
- mcor2 |= MCOR2_CDOD;
- }
-
- if (C_CREAD(tty))
- /* Enable receiver */
- port->IER |= IER_RXD;
-
- /* Set input FIFO size (1-8 bytes) */
- cor3 |= RISCOM_RXFIFO;
- /* Setting up CD180 channel registers */
- rc_out(bp, CD180_COR1, cor1);
- rc_out(bp, CD180_COR2, port->COR2);
- rc_out(bp, CD180_COR3, cor3);
- /* Make CD180 know about registers change */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3);
- /* Setting up modem option registers */
- rc_out(bp, CD180_MCOR1, mcor1);
- rc_out(bp, CD180_MCOR2, mcor2);
- /* Enable CD180 transmitter & receiver */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_TXEN | CCR_RXEN);
- /* Enable interrupts */
- rc_out(bp, CD180_IER, port->IER);
- /* And finally set RTS on */
- rc_out(bp, CD180_MSVR, port->MSVR);
-}
-
-/* Must be called with interrupts enabled */
-static int rc_activate_port(struct tty_port *port, struct tty_struct *tty)
-{
- struct riscom_port *rp = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(rp);
- unsigned long flags;
-
- if (tty_port_alloc_xmit_buf(port) < 0)
- return -ENOMEM;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- clear_bit(TTY_IO_ERROR, &tty->flags);
- bp->count++;
- rp->xmit_cnt = rp->xmit_head = rp->xmit_tail = 0;
- rc_change_speed(tty, bp, rp);
- spin_unlock_irqrestore(&riscom_lock, flags);
- return 0;
-}
-
-/* Must be called with interrupts disabled */
-static void rc_shutdown_port(struct tty_struct *tty,
- struct riscom_board *bp, struct riscom_port *port)
-{
-#ifdef RC_REPORT_OVERRUN
- printk(KERN_INFO "rc%d: port %d: Total %ld overruns were detected.\n",
- board_No(bp), port_No(port), port->overrun);
-#endif
-#ifdef RC_REPORT_FIFO
- {
- int i;
-
- printk(KERN_INFO "rc%d: port %d: FIFO hits [ ",
- board_No(bp), port_No(port));
- for (i = 0; i < 10; i++)
- printk("%ld ", port->hits[i]);
- printk("].\n");
- }
-#endif
- tty_port_free_xmit_buf(&port->port);
-
- /* Select port */
- rc_out(bp, CD180_CAR, port_No(port));
- /* Reset port */
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_SOFTRESET);
- /* Disable all interrupts from this port */
- port->IER = 0;
- rc_out(bp, CD180_IER, port->IER);
-
- set_bit(TTY_IO_ERROR, &tty->flags);
-
- if (--bp->count < 0) {
- printk(KERN_INFO "rc%d: rc_shutdown_port: "
- "bad board count: %d\n",
- board_No(bp), bp->count);
- bp->count = 0;
- }
- /*
- * If this is the last opened port on the board
- * shutdown whole board
- */
- if (!bp->count)
- rc_shutdown_board(bp);
-}
-
-static int carrier_raised(struct tty_port *port)
-{
- struct riscom_port *p = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(p);
- unsigned long flags;
- int CD;
-
- spin_lock_irqsave(&riscom_lock, flags);
- rc_out(bp, CD180_CAR, port_No(p));
- CD = rc_in(bp, CD180_MSVR) & MSVR_CD;
- rc_out(bp, CD180_MSVR, MSVR_RTS);
- bp->DTR &= ~(1u << port_No(p));
- rc_out(bp, RC_DTR, bp->DTR);
- spin_unlock_irqrestore(&riscom_lock, flags);
- return CD;
-}
-
-static void dtr_rts(struct tty_port *port, int onoff)
-{
- struct riscom_port *p = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(p);
- unsigned long flags;
-
- spin_lock_irqsave(&riscom_lock, flags);
- bp->DTR &= ~(1u << port_No(p));
- if (onoff == 0)
- bp->DTR |= (1u << port_No(p));
- rc_out(bp, RC_DTR, bp->DTR);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static int rc_open(struct tty_struct *tty, struct file *filp)
-{
- int board;
- int error;
- struct riscom_port *port;
- struct riscom_board *bp;
-
- board = RC_BOARD(tty->index);
- if (board >= RC_NBOARD || !(rc_board[board].flags & RC_BOARD_PRESENT))
- return -ENODEV;
-
- bp = &rc_board[board];
- port = rc_port + board * RC_NPORT + RC_PORT(tty->index);
- if (rc_paranoia_check(port, tty->name, "rc_open"))
- return -ENODEV;
-
- error = rc_setup_board(bp);
- if (error)
- return error;
-
- tty->driver_data = port;
- return tty_port_open(&port->port, tty, filp);
-}
-
-static void rc_flush_buffer(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_flush_buffer"))
- return;
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- tty_wakeup(tty);
-}
-
-static void rc_close_port(struct tty_port *port)
-{
- unsigned long flags;
- struct riscom_port *rp = container_of(port, struct riscom_port, port);
- struct riscom_board *bp = port_Board(rp);
- unsigned long timeout;
-
- /*
- * At this point we stop accepting input. To do this, we
- * disable the receive line status interrupts, and tell the
- * interrupt driver to stop checking the data ready bit in the
- * line status register.
- */
-
- spin_lock_irqsave(&riscom_lock, flags);
- rp->IER &= ~IER_RXD;
-
- rp->IER &= ~IER_TXRDY;
- rp->IER |= IER_TXEMPTY;
- rc_out(bp, CD180_CAR, port_No(rp));
- rc_out(bp, CD180_IER, rp->IER);
- /*
- * Before we drop DTR, make sure the UART transmitter
- * has completely drained; this is especially
- * important if there is a transmit FIFO!
- */
- timeout = jiffies + HZ;
- while (rp->IER & IER_TXEMPTY) {
- spin_unlock_irqrestore(&riscom_lock, flags);
- msleep_interruptible(jiffies_to_msecs(rp->timeout));
- spin_lock_irqsave(&riscom_lock, flags);
- if (time_after(jiffies, timeout))
- break;
- }
- rc_shutdown_port(port->tty, bp, rp);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_close(struct tty_struct *tty, struct file *filp)
-{
- struct riscom_port *port = tty->driver_data;
-
- if (!port || rc_paranoia_check(port, tty->name, "close"))
- return;
- tty_port_close(&port->port, tty, filp);
-}
-
-static int rc_write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- int c, total = 0;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_write"))
- return 0;
-
- bp = port_Board(port);
-
- while (1) {
- spin_lock_irqsave(&riscom_lock, flags);
-
- c = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- if (c <= 0)
- break; /* lock continues to be held */
-
- memcpy(port->port.xmit_buf + port->xmit_head, buf, c);
- port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
- port->xmit_cnt += c;
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- buf += c;
- count -= c;
- total += c;
- }
-
- if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
- !(port->IER & IER_TXRDY)) {
- port->IER |= IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_IER, port->IER);
- }
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- return total;
-}
-
-static int rc_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
- int ret = 0;
-
- if (rc_paranoia_check(port, tty->name, "rc_put_char"))
- return 0;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
- goto out;
-
- port->port.xmit_buf[port->xmit_head++] = ch;
- port->xmit_head &= SERIAL_XMIT_SIZE - 1;
- port->xmit_cnt++;
- ret = 1;
-
-out:
- spin_unlock_irqrestore(&riscom_lock, flags);
- return ret;
-}
-
-static void rc_flush_chars(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_flush_chars"))
- return;
-
- if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped)
- return;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- port->IER |= IER_TXRDY;
- rc_out(port_Board(port), CD180_CAR, port_No(port));
- rc_out(port_Board(port), CD180_IER, port->IER);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static int rc_write_room(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- int ret;
-
- if (rc_paranoia_check(port, tty->name, "rc_write_room"))
- return 0;
-
- ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
- return ret;
-}
-
-static int rc_chars_in_buffer(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
-
- if (rc_paranoia_check(port, tty->name, "rc_chars_in_buffer"))
- return 0;
-
- return port->xmit_cnt;
-}
-
-static int rc_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned char status;
- unsigned int result;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, __func__))
- return -ENODEV;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- rc_out(bp, CD180_CAR, port_No(port));
- status = rc_in(bp, CD180_MSVR);
- result = rc_in(bp, RC_RI) & (1u << port_No(port)) ? 0 : TIOCM_RNG;
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- result |= ((status & MSVR_RTS) ? TIOCM_RTS : 0)
- | ((status & MSVR_DTR) ? TIOCM_DTR : 0)
- | ((status & MSVR_CD) ? TIOCM_CAR : 0)
- | ((status & MSVR_DSR) ? TIOCM_DSR : 0)
- | ((status & MSVR_CTS) ? TIOCM_CTS : 0);
- return result;
-}
-
-static int rc_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
- struct riscom_board *bp;
-
- if (rc_paranoia_check(port, tty->name, __func__))
- return -ENODEV;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- if (set & TIOCM_RTS)
- port->MSVR |= MSVR_RTS;
- if (set & TIOCM_DTR)
- bp->DTR &= ~(1u << port_No(port));
-
- if (clear & TIOCM_RTS)
- port->MSVR &= ~MSVR_RTS;
- if (clear & TIOCM_DTR)
- bp->DTR |= (1u << port_No(port));
-
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_MSVR, port->MSVR);
- rc_out(bp, RC_DTR, bp->DTR);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- return 0;
-}
-
-static int rc_send_break(struct tty_struct *tty, int length)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp = port_Board(port);
- unsigned long flags;
-
- if (length == 0 || length == -1)
- return -EOPNOTSUPP;
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- port->break_length = RISCOM_TPS / HZ * length;
- port->COR2 |= COR2_ETC;
- port->IER |= IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_COR2, port->COR2);
- rc_out(bp, CD180_IER, port->IER);
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_CORCHG2);
- rc_wait_CCR(bp);
-
- spin_unlock_irqrestore(&riscom_lock, flags);
- return 0;
-}
-
-static int rc_set_serial_info(struct tty_struct *tty, struct riscom_port *port,
- struct serial_struct __user *newinfo)
-{
- struct serial_struct tmp;
- struct riscom_board *bp = port_Board(port);
- int change_speed;
-
- if (copy_from_user(&tmp, newinfo, sizeof(tmp)))
- return -EFAULT;
-
- mutex_lock(&port->port.mutex);
- change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
- (tmp.flags & ASYNC_SPD_MASK));
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((tmp.close_delay != port->port.close_delay) ||
- (tmp.closing_wait != port->port.closing_wait) ||
- ((tmp.flags & ~ASYNC_USR_MASK) !=
- (port->port.flags & ~ASYNC_USR_MASK))) {
- mutex_unlock(&port->port.mutex);
- return -EPERM;
- }
- port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
- (tmp.flags & ASYNC_USR_MASK));
- } else {
- port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
- (tmp.flags & ASYNC_FLAGS));
- port->port.close_delay = tmp.close_delay;
- port->port.closing_wait = tmp.closing_wait;
- }
- if (change_speed) {
- unsigned long flags;
-
- spin_lock_irqsave(&riscom_lock, flags);
- rc_change_speed(tty, bp, port);
- spin_unlock_irqrestore(&riscom_lock, flags);
- }
- mutex_unlock(&port->port.mutex);
- return 0;
-}
-
-static int rc_get_serial_info(struct riscom_port *port,
- struct serial_struct __user *retinfo)
-{
- struct serial_struct tmp;
- struct riscom_board *bp = port_Board(port);
-
- memset(&tmp, 0, sizeof(tmp));
- tmp.type = PORT_CIRRUS;
- tmp.line = port - rc_port;
-
- mutex_lock(&port->port.mutex);
- tmp.port = bp->base;
- tmp.irq = bp->irq;
- tmp.flags = port->port.flags;
- tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC;
- tmp.close_delay = port->port.close_delay * HZ/100;
- tmp.closing_wait = port->port.closing_wait * HZ/100;
- mutex_unlock(&port->port.mutex);
- tmp.xmit_fifo_size = CD180_NFIFO;
- return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0;
-}
-
-static int rc_ioctl(struct tty_struct *tty, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct riscom_port *port = tty->driver_data;
- void __user *argp = (void __user *)arg;
- int retval;
-
- if (rc_paranoia_check(port, tty->name, "rc_ioctl"))
- return -ENODEV;
-
- switch (cmd) {
- case TIOCGSERIAL:
- retval = rc_get_serial_info(port, argp);
- break;
- case TIOCSSERIAL:
- retval = rc_set_serial_info(tty, port, argp);
- break;
- default:
- retval = -ENOIOCTLCMD;
- }
- return retval;
-}
-
-static void rc_throttle(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_throttle"))
- return;
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->MSVR &= ~MSVR_RTS;
- rc_out(bp, CD180_CAR, port_No(port));
- if (I_IXOFF(tty)) {
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_SSCH2);
- rc_wait_CCR(bp);
- }
- rc_out(bp, CD180_MSVR, port->MSVR);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_unthrottle(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_unthrottle"))
- return;
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->MSVR |= MSVR_RTS;
- rc_out(bp, CD180_CAR, port_No(port));
- if (I_IXOFF(tty)) {
- rc_wait_CCR(bp);
- rc_out(bp, CD180_CCR, CCR_SSCH1);
- rc_wait_CCR(bp);
- }
- rc_out(bp, CD180_MSVR, port->MSVR);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_stop(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_stop"))
- return;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
- port->IER &= ~IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_IER, port->IER);
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_start(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
- struct riscom_board *bp;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_start"))
- return;
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&riscom_lock, flags);
-
- if (port->xmit_cnt && port->port.xmit_buf && !(port->IER & IER_TXRDY)) {
- port->IER |= IER_TXRDY;
- rc_out(bp, CD180_CAR, port_No(port));
- rc_out(bp, CD180_IER, port->IER);
- }
- spin_unlock_irqrestore(&riscom_lock, flags);
-}
-
-static void rc_hangup(struct tty_struct *tty)
-{
- struct riscom_port *port = tty->driver_data;
-
- if (rc_paranoia_check(port, tty->name, "rc_hangup"))
- return;
-
- tty_port_hangup(&port->port);
-}
-
-static void rc_set_termios(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct riscom_port *port = tty->driver_data;
- unsigned long flags;
-
- if (rc_paranoia_check(port, tty->name, "rc_set_termios"))
- return;
-
- spin_lock_irqsave(&riscom_lock, flags);
- rc_change_speed(tty, port_Board(port), port);
- spin_unlock_irqrestore(&riscom_lock, flags);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- rc_start(tty);
- }
-}
-
-static const struct tty_operations riscom_ops = {
- .open = rc_open,
- .close = rc_close,
- .write = rc_write,
- .put_char = rc_put_char,
- .flush_chars = rc_flush_chars,
- .write_room = rc_write_room,
- .chars_in_buffer = rc_chars_in_buffer,
- .flush_buffer = rc_flush_buffer,
- .ioctl = rc_ioctl,
- .throttle = rc_throttle,
- .unthrottle = rc_unthrottle,
- .set_termios = rc_set_termios,
- .stop = rc_stop,
- .start = rc_start,
- .hangup = rc_hangup,
- .tiocmget = rc_tiocmget,
- .tiocmset = rc_tiocmset,
- .break_ctl = rc_send_break,
-};
-
-static const struct tty_port_operations riscom_port_ops = {
- .carrier_raised = carrier_raised,
- .dtr_rts = dtr_rts,
- .shutdown = rc_close_port,
- .activate = rc_activate_port,
-};
-
-
-static int __init rc_init_drivers(void)
-{
- int error;
- int i;
-
- riscom_driver = alloc_tty_driver(RC_NBOARD * RC_NPORT);
- if (!riscom_driver)
- return -ENOMEM;
-
- riscom_driver->owner = THIS_MODULE;
- riscom_driver->name = "ttyL";
- riscom_driver->major = RISCOM8_NORMAL_MAJOR;
- riscom_driver->type = TTY_DRIVER_TYPE_SERIAL;
- riscom_driver->subtype = SERIAL_TYPE_NORMAL;
- riscom_driver->init_termios = tty_std_termios;
- riscom_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- riscom_driver->init_termios.c_ispeed = 9600;
- riscom_driver->init_termios.c_ospeed = 9600;
- riscom_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_HARDWARE_BREAK;
- tty_set_operations(riscom_driver, &riscom_ops);
- error = tty_register_driver(riscom_driver);
- if (error != 0) {
- put_tty_driver(riscom_driver);
- printk(KERN_ERR "rc: Couldn't register RISCom/8 driver, "
- "error = %d\n", error);
- return 1;
- }
- memset(rc_port, 0, sizeof(rc_port));
- for (i = 0; i < RC_NPORT * RC_NBOARD; i++) {
- tty_port_init(&rc_port[i].port);
- rc_port[i].port.ops = &riscom_port_ops;
- rc_port[i].magic = RISCOM8_MAGIC;
- }
- return 0;
-}
-
-static void rc_release_drivers(void)
-{
- tty_unregister_driver(riscom_driver);
- put_tty_driver(riscom_driver);
-}
-
-#ifndef MODULE
-/*
- * Called at boot time.
- *
- * You can specify IO base for up to RC_NBOARD cards,
- * using line "riscom8=0xiobase1,0xiobase2,.." at LILO prompt.
- * Note that there will be no probing at default
- * addresses in this case.
- *
- */
-static int __init riscom8_setup(char *str)
-{
- int ints[RC_NBOARD];
- int i;
-
- str = get_options(str, ARRAY_SIZE(ints), ints);
-
- for (i = 0; i < RC_NBOARD; i++) {
- if (i < ints[0])
- rc_board[i].base = ints[i+1];
- else
- rc_board[i].base = 0;
- }
- return 1;
-}
-
-__setup("riscom8=", riscom8_setup);
-#endif
-
-static char banner[] __initdata =
- KERN_INFO "rc: SDL RISCom/8 card driver v1.1, (c) D.Gorodchanin "
- "1994-1996.\n";
-static char no_boards_msg[] __initdata =
- KERN_INFO "rc: No RISCom/8 boards detected.\n";
-
-/*
- * This routine must be called by kernel at boot time
- */
-static int __init riscom8_init(void)
-{
- int i;
- int found = 0;
-
- printk(banner);
-
- if (rc_init_drivers())
- return -EIO;
-
- for (i = 0; i < RC_NBOARD; i++)
- if (rc_board[i].base && !rc_probe(&rc_board[i]))
- found++;
- if (!found) {
- rc_release_drivers();
- printk(no_boards_msg);
- return -EIO;
- }
- return 0;
-}
-
-#ifdef MODULE
-static int iobase;
-static int iobase1;
-static int iobase2;
-static int iobase3;
-module_param(iobase, int, 0);
-module_param(iobase1, int, 0);
-module_param(iobase2, int, 0);
-module_param(iobase3, int, 0);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV_MAJOR(RISCOM8_NORMAL_MAJOR);
-#endif /* MODULE */
-
-/*
- * You can setup up to 4 boards (current value of RC_NBOARD)
- * by specifying "iobase=0xXXX iobase1=0xXXX ..." as insmod parameter.
- *
- */
-static int __init riscom8_init_module(void)
-{
-#ifdef MODULE
- int i;
-
- if (iobase || iobase1 || iobase2 || iobase3) {
- for (i = 0; i < RC_NBOARD; i++)
- rc_board[i].base = 0;
- }
-
- if (iobase)
- rc_board[0].base = iobase;
- if (iobase1)
- rc_board[1].base = iobase1;
- if (iobase2)
- rc_board[2].base = iobase2;
- if (iobase3)
- rc_board[3].base = iobase3;
-#endif /* MODULE */
-
- return riscom8_init();
-}
-
-static void __exit riscom8_exit_module(void)
-{
- int i;
-
- rc_release_drivers();
- for (i = 0; i < RC_NBOARD; i++)
- if (rc_board[i].flags & RC_BOARD_PRESENT)
- rc_release_io_range(&rc_board[i]);
-
-}
-
-module_init(riscom8_init_module);
-module_exit(riscom8_exit_module);
diff --git a/drivers/char/riscom8.h b/drivers/char/riscom8.h
deleted file mode 100644
index c9876b3f971..00000000000
--- a/drivers/char/riscom8.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * linux/drivers/char/riscom8.h -- RISCom/8 multiport serial driver.
- *
- * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others. The RISCom/8 card
- * programming info was obtained from various drivers for other OSes
- * (FreeBSD, ISC, etc), but no source code from those drivers were
- * directly included in this driver.
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __LINUX_RISCOM8_H
-#define __LINUX_RISCOM8_H
-
-#include <linux/serial.h>
-
-#ifdef __KERNEL__
-
-#define RC_NBOARD 4
-/* NOTE: RISCom decoder recognizes 16 addresses... */
-#define RC_NPORT 8
-#define RC_BOARD(line) (((line) >> 3) & 0x07)
-#define RC_PORT(line) ((line) & (RC_NPORT - 1))
-
-/* Ticks per sec. Used for setting receiver timeout and break length */
-#define RISCOM_TPS 4000
-
-/* Yeah, after heavy testing I decided it must be 6.
- * Sure, You can change it if needed.
- */
-#define RISCOM_RXFIFO 6 /* Max. receiver FIFO size (1-8) */
-
-#define RISCOM8_MAGIC 0x0907
-
-#define RC_IOBASE1 0x220
-#define RC_IOBASE2 0x240
-#define RC_IOBASE3 0x250
-#define RC_IOBASE4 0x260
-
-struct riscom_board {
- unsigned long flags;
- unsigned short base;
- unsigned char irq;
- signed char count;
- unsigned char DTR;
-};
-
-#define RC_BOARD_PRESENT 0x00000001
-#define RC_BOARD_ACTIVE 0x00000002
-
-struct riscom_port {
- int magic;
- struct tty_port port;
- int baud_base;
- int timeout;
- int custom_divisor;
- int xmit_head;
- int xmit_tail;
- int xmit_cnt;
- short wakeup_chars;
- short break_length;
- unsigned char mark_mask;
- unsigned char IER;
- unsigned char MSVR;
- unsigned char COR2;
-#ifdef RC_REPORT_OVERRUN
- unsigned long overrun;
-#endif
-#ifdef RC_REPORT_FIFO
- unsigned long hits[10];
-#endif
-};
-
-#endif /* __KERNEL__ */
-#endif /* __LINUX_RISCOM8_H */
diff --git a/drivers/char/riscom8_reg.h b/drivers/char/riscom8_reg.h
deleted file mode 100644
index a32475ed0d1..00000000000
--- a/drivers/char/riscom8_reg.h
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * linux/drivers/char/riscom8_reg.h -- RISCom/8 multiport serial driver.
- */
-
-/*
- * Definitions for RISCom/8 Async Mux card by SDL Communications, Inc.
- */
-
-/*
- * Address mapping between Cirrus Logic CD180 chip internal registers
- * and ISA port addresses:
- *
- * CL-CD180 A6 A5 A4 A3 A2 A1 A0
- * ISA A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
- */
-#define RC_TO_ISA(r) ((((r)&0x07)<<1) | (((r)&~0x07)<<7))
-
-
-/* RISCom/8 On-Board Registers (assuming address translation) */
-
-#define RC_RI 0x100 /* Ring Indicator Register (R/O) */
-#define RC_DTR 0x100 /* DTR Register (W/O) */
-#define RC_BSR 0x101 /* Board Status Register (R/O) */
-#define RC_CTOUT 0x101 /* Clear Timeout (W/O) */
-
-
-/* Board Status Register */
-
-#define RC_BSR_TOUT 0x08 /* Hardware Timeout */
-#define RC_BSR_RINT 0x04 /* Receiver Interrupt */
-#define RC_BSR_TINT 0x02 /* Transmitter Interrupt */
-#define RC_BSR_MINT 0x01 /* Modem Ctl Interrupt */
-
-
-/* On-board oscillator frequency (in Hz) */
-#define RC_OSCFREQ 9830400
-
-/* Values of choice for Interrupt ACKs */
-#define RC_ACK_MINT 0x81 /* goes to PILR1 */
-#define RC_ACK_RINT 0x82 /* goes to PILR3 */
-#define RC_ACK_TINT 0x84 /* goes to PILR2 */
-
-/* Chip ID (sorry, only one chip now) */
-#define RC_ID 0x10
-
-/* Definitions for Cirrus Logic CL-CD180 8-port async mux chip */
-
-#define CD180_NCH 8 /* Total number of channels */
-#define CD180_TPC 16 /* Ticks per character */
-#define CD180_NFIFO 8 /* TX FIFO size */
-
-
-/* Global registers */
-
-#define CD180_GIVR 0x40 /* Global Interrupt Vector Register */
-#define CD180_GICR 0x41 /* Global Interrupting Channel Register */
-#define CD180_PILR1 0x61 /* Priority Interrupt Level Register 1 */
-#define CD180_PILR2 0x62 /* Priority Interrupt Level Register 2 */
-#define CD180_PILR3 0x63 /* Priority Interrupt Level Register 3 */
-#define CD180_CAR 0x64 /* Channel Access Register */
-#define CD180_GFRCR 0x6b /* Global Firmware Revision Code Register */
-#define CD180_PPRH 0x70 /* Prescaler Period Register High */
-#define CD180_PPRL 0x71 /* Prescaler Period Register Low */
-#define CD180_RDR 0x78 /* Receiver Data Register */
-#define CD180_RCSR 0x7a /* Receiver Character Status Register */
-#define CD180_TDR 0x7b /* Transmit Data Register */
-#define CD180_EOIR 0x7f /* End of Interrupt Register */
-
-
-/* Channel Registers */
-
-#define CD180_CCR 0x01 /* Channel Command Register */
-#define CD180_IER 0x02 /* Interrupt Enable Register */
-#define CD180_COR1 0x03 /* Channel Option Register 1 */
-#define CD180_COR2 0x04 /* Channel Option Register 2 */
-#define CD180_COR3 0x05 /* Channel Option Register 3 */
-#define CD180_CCSR 0x06 /* Channel Control Status Register */
-#define CD180_RDCR 0x07 /* Receive Data Count Register */
-#define CD180_SCHR1 0x09 /* Special Character Register 1 */
-#define CD180_SCHR2 0x0a /* Special Character Register 2 */
-#define CD180_SCHR3 0x0b /* Special Character Register 3 */
-#define CD180_SCHR4 0x0c /* Special Character Register 4 */
-#define CD180_MCOR1 0x10 /* Modem Change Option 1 Register */
-#define CD180_MCOR2 0x11 /* Modem Change Option 2 Register */
-#define CD180_MCR 0x12 /* Modem Change Register */
-#define CD180_RTPR 0x18 /* Receive Timeout Period Register */
-#define CD180_MSVR 0x28 /* Modem Signal Value Register */
-#define CD180_RBPRH 0x31 /* Receive Baud Rate Period Register High */
-#define CD180_RBPRL 0x32 /* Receive Baud Rate Period Register Low */
-#define CD180_TBPRH 0x39 /* Transmit Baud Rate Period Register High */
-#define CD180_TBPRL 0x3a /* Transmit Baud Rate Period Register Low */
-
-
-/* Global Interrupt Vector Register (R/W) */
-
-#define GIVR_ITMASK 0x07 /* Interrupt type mask */
-#define GIVR_IT_MODEM 0x01 /* Modem Signal Change Interrupt */
-#define GIVR_IT_TX 0x02 /* Transmit Data Interrupt */
-#define GIVR_IT_RCV 0x03 /* Receive Good Data Interrupt */
-#define GIVR_IT_REXC 0x07 /* Receive Exception Interrupt */
-
-
-/* Global Interrupt Channel Register (R/W) */
-
-#define GICR_CHAN 0x1c /* Channel Number Mask */
-#define GICR_CHAN_OFF 2 /* Channel Number Offset */
-
-
-/* Channel Address Register (R/W) */
-
-#define CAR_CHAN 0x07 /* Channel Number Mask */
-#define CAR_A7 0x08 /* A7 Address Extension (unused) */
-
-
-/* Receive Character Status Register (R/O) */
-
-#define RCSR_TOUT 0x80 /* Rx Timeout */
-#define RCSR_SCDET 0x70 /* Special Character Detected Mask */
-#define RCSR_NO_SC 0x00 /* No Special Characters Detected */
-#define RCSR_SC_1 0x10 /* Special Char 1 (or 1 & 3) Detected */
-#define RCSR_SC_2 0x20 /* Special Char 2 (or 2 & 4) Detected */
-#define RCSR_SC_3 0x30 /* Special Char 3 Detected */
-#define RCSR_SC_4 0x40 /* Special Char 4 Detected */
-#define RCSR_BREAK 0x08 /* Break has been detected */
-#define RCSR_PE 0x04 /* Parity Error */
-#define RCSR_FE 0x02 /* Frame Error */
-#define RCSR_OE 0x01 /* Overrun Error */
-
-
-/* Channel Command Register (R/W) (commands in groups can be OR-ed) */
-
-#define CCR_HARDRESET 0x81 /* Reset the chip */
-
-#define CCR_SOFTRESET 0x80 /* Soft Channel Reset */
-
-#define CCR_CORCHG1 0x42 /* Channel Option Register 1 Changed */
-#define CCR_CORCHG2 0x44 /* Channel Option Register 2 Changed */
-#define CCR_CORCHG3 0x48 /* Channel Option Register 3 Changed */
-
-#define CCR_SSCH1 0x21 /* Send Special Character 1 */
-
-#define CCR_SSCH2 0x22 /* Send Special Character 2 */
-
-#define CCR_SSCH3 0x23 /* Send Special Character 3 */
-
-#define CCR_SSCH4 0x24 /* Send Special Character 4 */
-
-#define CCR_TXEN 0x18 /* Enable Transmitter */
-#define CCR_RXEN 0x12 /* Enable Receiver */
-
-#define CCR_TXDIS 0x14 /* Disable Transmitter */
-#define CCR_RXDIS 0x11 /* Disable Receiver */
-
-
-/* Interrupt Enable Register (R/W) */
-
-#define IER_DSR 0x80 /* Enable interrupt on DSR change */
-#define IER_CD 0x40 /* Enable interrupt on CD change */
-#define IER_CTS 0x20 /* Enable interrupt on CTS change */
-#define IER_RXD 0x10 /* Enable interrupt on Receive Data */
-#define IER_RXSC 0x08 /* Enable interrupt on Receive Spec. Char */
-#define IER_TXRDY 0x04 /* Enable interrupt on TX FIFO empty */
-#define IER_TXEMPTY 0x02 /* Enable interrupt on TX completely empty */
-#define IER_RET 0x01 /* Enable interrupt on RX Exc. Timeout */
-
-
-/* Channel Option Register 1 (R/W) */
-
-#define COR1_ODDP 0x80 /* Odd Parity */
-#define COR1_PARMODE 0x60 /* Parity Mode mask */
-#define COR1_NOPAR 0x00 /* No Parity */
-#define COR1_FORCEPAR 0x20 /* Force Parity */
-#define COR1_NORMPAR 0x40 /* Normal Parity */
-#define COR1_IGNORE 0x10 /* Ignore Parity on RX */
-#define COR1_STOPBITS 0x0c /* Number of Stop Bits */
-#define COR1_1SB 0x00 /* 1 Stop Bit */
-#define COR1_15SB 0x04 /* 1.5 Stop Bits */
-#define COR1_2SB 0x08 /* 2 Stop Bits */
-#define COR1_CHARLEN 0x03 /* Character Length */
-#define COR1_5BITS 0x00 /* 5 bits */
-#define COR1_6BITS 0x01 /* 6 bits */
-#define COR1_7BITS 0x02 /* 7 bits */
-#define COR1_8BITS 0x03 /* 8 bits */
-
-
-/* Channel Option Register 2 (R/W) */
-
-#define COR2_IXM 0x80 /* Implied XON mode */
-#define COR2_TXIBE 0x40 /* Enable In-Band (XON/XOFF) Flow Control */
-#define COR2_ETC 0x20 /* Embedded Tx Commands Enable */
-#define COR2_LLM 0x10 /* Local Loopback Mode */
-#define COR2_RLM 0x08 /* Remote Loopback Mode */
-#define COR2_RTSAO 0x04 /* RTS Automatic Output Enable */
-#define COR2_CTSAE 0x02 /* CTS Automatic Enable */
-#define COR2_DSRAE 0x01 /* DSR Automatic Enable */
-
-
-/* Channel Option Register 3 (R/W) */
-
-#define COR3_XONCH 0x80 /* XON is a pair of characters (1 & 3) */
-#define COR3_XOFFCH 0x40 /* XOFF is a pair of characters (2 & 4) */
-#define COR3_FCT 0x20 /* Flow-Control Transparency Mode */
-#define COR3_SCDE 0x10 /* Special Character Detection Enable */
-#define COR3_RXTH 0x0f /* RX FIFO Threshold value (1-8) */
-
-
-/* Channel Control Status Register (R/O) */
-
-#define CCSR_RXEN 0x80 /* Receiver Enabled */
-#define CCSR_RXFLOFF 0x40 /* Receive Flow Off (XOFF was sent) */
-#define CCSR_RXFLON 0x20 /* Receive Flow On (XON was sent) */
-#define CCSR_TXEN 0x08 /* Transmitter Enabled */
-#define CCSR_TXFLOFF 0x04 /* Transmit Flow Off (got XOFF) */
-#define CCSR_TXFLON 0x02 /* Transmit Flow On (got XON) */
-
-
-/* Modem Change Option Register 1 (R/W) */
-
-#define MCOR1_DSRZD 0x80 /* Detect 0->1 transition of DSR */
-#define MCOR1_CDZD 0x40 /* Detect 0->1 transition of CD */
-#define MCOR1_CTSZD 0x20 /* Detect 0->1 transition of CTS */
-#define MCOR1_DTRTH 0x0f /* Auto DTR flow control Threshold (1-8) */
-#define MCOR1_NODTRFC 0x0 /* Automatic DTR flow control disabled */
-
-
-/* Modem Change Option Register 2 (R/W) */
-
-#define MCOR2_DSROD 0x80 /* Detect 1->0 transition of DSR */
-#define MCOR2_CDOD 0x40 /* Detect 1->0 transition of CD */
-#define MCOR2_CTSOD 0x20 /* Detect 1->0 transition of CTS */
-
-
-/* Modem Change Register (R/W) */
-
-#define MCR_DSRCHG 0x80 /* DSR Changed */
-#define MCR_CDCHG 0x40 /* CD Changed */
-#define MCR_CTSCHG 0x20 /* CTS Changed */
-
-
-/* Modem Signal Value Register (R/W) */
-
-#define MSVR_DSR 0x80 /* Current state of DSR input */
-#define MSVR_CD 0x40 /* Current state of CD input */
-#define MSVR_CTS 0x20 /* Current state of CTS input */
-#define MSVR_DTR 0x02 /* Current state of DTR output */
-#define MSVR_RTS 0x01 /* Current state of RTS output */
-
-
-/* Escape characters */
-
-#define CD180_C_ESC 0x00 /* Escape character */
-#define CD180_C_SBRK 0x81 /* Start sending BREAK */
-#define CD180_C_DELAY 0x82 /* Delay output */
-#define CD180_C_EBRK 0x83 /* Stop sending BREAK */
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
deleted file mode 100644
index 3e4e73a0d7c..00000000000
--- a/drivers/char/rocket.c
+++ /dev/null
@@ -1,3199 +0,0 @@
-/*
- * RocketPort device driver for Linux
- *
- * Written by Theodore Ts'o, 1995, 1996, 1997, 1998, 1999, 2000.
- *
- * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003 by Comtrol, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*
- * Kernel Synchronization:
- *
- * This driver has 2 kernel control paths - exception handlers (calls into the driver
- * from user mode) and the timer bottom half (tasklet). This is a polled driver, interrupts
- * are not used.
- *
- * Critical data:
- * - rp_table[], accessed through passed "info" pointers, is a global (static) array of
- * serial port state information and the xmit_buf circular buffer. Protected by
- * a per port spinlock.
- * - xmit_flags[], an array of ints indexed by line (port) number, indicating that there
- * is data to be transmitted. Protected by atomic bit operations.
- * - rp_num_ports, int indicating number of open ports, protected by atomic operations.
- *
- * rp_write() and rp_write_char() functions use a per port semaphore to protect against
- * simultaneous access to the same port by more than one process.
- */
-
-/****** Defines ******/
-#define ROCKET_PARANOIA_CHECK
-#define ROCKET_DISABLE_SIMUSAGE
-
-#undef ROCKET_SOFT_FLOW
-#undef ROCKET_DEBUG_OPEN
-#undef ROCKET_DEBUG_INTR
-#undef ROCKET_DEBUG_WRITE
-#undef ROCKET_DEBUG_FLOW
-#undef ROCKET_DEBUG_THROTTLE
-#undef ROCKET_DEBUG_WAIT_UNTIL_SENT
-#undef ROCKET_DEBUG_RECEIVE
-#undef ROCKET_DEBUG_HANGUP
-#undef REV_PCI_ORDER
-#undef ROCKET_DEBUG_IO
-
-#define POLL_PERIOD HZ/100 /* Polling period .01 seconds (10ms) */
-
-/****** Kernel includes ******/
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/major.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/mutex.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/completion.h>
-#include <linux/wait.h>
-#include <linux/pci.h>
-#include <linux/uaccess.h>
-#include <asm/atomic.h>
-#include <asm/unaligned.h>
-#include <linux/bitops.h>
-#include <linux/spinlock.h>
-#include <linux/init.h>
-
-/****** RocketPort includes ******/
-
-#include "rocket_int.h"
-#include "rocket.h"
-
-#define ROCKET_VERSION "2.09"
-#define ROCKET_DATE "12-June-2003"
-
-/****** RocketPort Local Variables ******/
-
-static void rp_do_poll(unsigned long dummy);
-
-static struct tty_driver *rocket_driver;
-
-static struct rocket_version driver_version = {
- ROCKET_VERSION, ROCKET_DATE
-};
-
-static struct r_port *rp_table[MAX_RP_PORTS]; /* The main repository of serial port state information. */
-static unsigned int xmit_flags[NUM_BOARDS]; /* Bit significant, indicates port had data to transmit. */
- /* eg. Bit 0 indicates port 0 has xmit data, ... */
-static atomic_t rp_num_ports_open; /* Number of serial ports open */
-static DEFINE_TIMER(rocket_timer, rp_do_poll, 0, 0);
-
-static unsigned long board1; /* ISA addresses, retrieved from rocketport.conf */
-static unsigned long board2;
-static unsigned long board3;
-static unsigned long board4;
-static unsigned long controller;
-static int support_low_speed;
-static unsigned long modem1;
-static unsigned long modem2;
-static unsigned long modem3;
-static unsigned long modem4;
-static unsigned long pc104_1[8];
-static unsigned long pc104_2[8];
-static unsigned long pc104_3[8];
-static unsigned long pc104_4[8];
-static unsigned long *pc104[4] = { pc104_1, pc104_2, pc104_3, pc104_4 };
-
-static int rp_baud_base[NUM_BOARDS]; /* Board config info (Someday make a per-board structure) */
-static unsigned long rcktpt_io_addr[NUM_BOARDS];
-static int rcktpt_type[NUM_BOARDS];
-static int is_PCI[NUM_BOARDS];
-static rocketModel_t rocketModel[NUM_BOARDS];
-static int max_board;
-static const struct tty_port_operations rocket_port_ops;
-
-/*
- * The following arrays define the interrupt bits corresponding to each AIOP.
- * These bits are different between the ISA and regular PCI boards and the
- * Universal PCI boards.
- */
-
-static Word_t aiop_intr_bits[AIOP_CTL_SIZE] = {
- AIOP_INTR_BIT_0,
- AIOP_INTR_BIT_1,
- AIOP_INTR_BIT_2,
- AIOP_INTR_BIT_3
-};
-
-static Word_t upci_aiop_intr_bits[AIOP_CTL_SIZE] = {
- UPCI_AIOP_INTR_BIT_0,
- UPCI_AIOP_INTR_BIT_1,
- UPCI_AIOP_INTR_BIT_2,
- UPCI_AIOP_INTR_BIT_3
-};
-
-static Byte_t RData[RDATASIZE] = {
- 0x00, 0x09, 0xf6, 0x82,
- 0x02, 0x09, 0x86, 0xfb,
- 0x04, 0x09, 0x00, 0x0a,
- 0x06, 0x09, 0x01, 0x0a,
- 0x08, 0x09, 0x8a, 0x13,
- 0x0a, 0x09, 0xc5, 0x11,
- 0x0c, 0x09, 0x86, 0x85,
- 0x0e, 0x09, 0x20, 0x0a,
- 0x10, 0x09, 0x21, 0x0a,
- 0x12, 0x09, 0x41, 0xff,
- 0x14, 0x09, 0x82, 0x00,
- 0x16, 0x09, 0x82, 0x7b,
- 0x18, 0x09, 0x8a, 0x7d,
- 0x1a, 0x09, 0x88, 0x81,
- 0x1c, 0x09, 0x86, 0x7a,
- 0x1e, 0x09, 0x84, 0x81,
- 0x20, 0x09, 0x82, 0x7c,
- 0x22, 0x09, 0x0a, 0x0a
-};
-
-static Byte_t RRegData[RREGDATASIZE] = {
- 0x00, 0x09, 0xf6, 0x82, /* 00: Stop Rx processor */
- 0x08, 0x09, 0x8a, 0x13, /* 04: Tx software flow control */
- 0x0a, 0x09, 0xc5, 0x11, /* 08: XON char */
- 0x0c, 0x09, 0x86, 0x85, /* 0c: XANY */
- 0x12, 0x09, 0x41, 0xff, /* 10: Rx mask char */
- 0x14, 0x09, 0x82, 0x00, /* 14: Compare/Ignore #0 */
- 0x16, 0x09, 0x82, 0x7b, /* 18: Compare #1 */
- 0x18, 0x09, 0x8a, 0x7d, /* 1c: Compare #2 */
- 0x1a, 0x09, 0x88, 0x81, /* 20: Interrupt #1 */
- 0x1c, 0x09, 0x86, 0x7a, /* 24: Ignore/Replace #1 */
- 0x1e, 0x09, 0x84, 0x81, /* 28: Interrupt #2 */
- 0x20, 0x09, 0x82, 0x7c, /* 2c: Ignore/Replace #2 */
- 0x22, 0x09, 0x0a, 0x0a /* 30: Rx FIFO Enable */
-};
-
-static CONTROLLER_T sController[CTL_SIZE] = {
- {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
- {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
- {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
- {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
- {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
- {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}},
- {-1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0},
- {0, 0, 0, 0}, {-1, -1, -1, -1}, {0, 0, 0, 0}}
-};
-
-static Byte_t sBitMapClrTbl[8] = {
- 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f
-};
-
-static Byte_t sBitMapSetTbl[8] = {
- 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
-};
-
-static int sClockPrescale = 0x14;
-
-/*
- * Line number is the ttySIx number (x), the Minor number. We
- * assign them sequentially, starting at zero. The following
- * array keeps track of the line number assigned to a given board/aiop/channel.
- */
-static unsigned char lineNumbers[MAX_RP_PORTS];
-static unsigned long nextLineNumber;
-
-/***** RocketPort Static Prototypes *********/
-static int __init init_ISA(int i);
-static void rp_wait_until_sent(struct tty_struct *tty, int timeout);
-static void rp_flush_buffer(struct tty_struct *tty);
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model);
-static unsigned char GetLineNumber(int ctrl, int aiop, int ch);
-static unsigned char SetLineNumber(int ctrl, int aiop, int ch);
-static void rp_start(struct tty_struct *tty);
-static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum,
- int ChanNum);
-static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode);
-static void sFlushRxFIFO(CHANNEL_T * ChP);
-static void sFlushTxFIFO(CHANNEL_T * ChP);
-static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags);
-static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags);
-static void sModemReset(CONTROLLER_T * CtlP, int chan, int on);
-static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on);
-static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data);
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
- ByteIO_t * AiopIOList, int AiopIOListSize,
- WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
- int PeriodicOnly, int altChanRingIndicator,
- int UPCIRingInd);
-static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
- ByteIO_t * AiopIOList, int AiopIOListSize,
- int IRQNum, Byte_t Frequency, int PeriodicOnly);
-static int sReadAiopID(ByteIO_t io);
-static int sReadAiopNumChan(WordIO_t io);
-
-MODULE_AUTHOR("Theodore Ts'o");
-MODULE_DESCRIPTION("Comtrol RocketPort driver");
-module_param(board1, ulong, 0);
-MODULE_PARM_DESC(board1, "I/O port for (ISA) board #1");
-module_param(board2, ulong, 0);
-MODULE_PARM_DESC(board2, "I/O port for (ISA) board #2");
-module_param(board3, ulong, 0);
-MODULE_PARM_DESC(board3, "I/O port for (ISA) board #3");
-module_param(board4, ulong, 0);
-MODULE_PARM_DESC(board4, "I/O port for (ISA) board #4");
-module_param(controller, ulong, 0);
-MODULE_PARM_DESC(controller, "I/O port for (ISA) rocketport controller");
-module_param(support_low_speed, bool, 0);
-MODULE_PARM_DESC(support_low_speed, "1 means support 50 baud, 0 means support 460400 baud");
-module_param(modem1, ulong, 0);
-MODULE_PARM_DESC(modem1, "1 means (ISA) board #1 is a RocketModem");
-module_param(modem2, ulong, 0);
-MODULE_PARM_DESC(modem2, "1 means (ISA) board #2 is a RocketModem");
-module_param(modem3, ulong, 0);
-MODULE_PARM_DESC(modem3, "1 means (ISA) board #3 is a RocketModem");
-module_param(modem4, ulong, 0);
-MODULE_PARM_DESC(modem4, "1 means (ISA) board #4 is a RocketModem");
-module_param_array(pc104_1, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_1, "set interface types for ISA(PC104) board #1 (e.g. pc104_1=232,232,485,485,...");
-module_param_array(pc104_2, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_2, "set interface types for ISA(PC104) board #2 (e.g. pc104_2=232,232,485,485,...");
-module_param_array(pc104_3, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_3, "set interface types for ISA(PC104) board #3 (e.g. pc104_3=232,232,485,485,...");
-module_param_array(pc104_4, ulong, NULL, 0);
-MODULE_PARM_DESC(pc104_4, "set interface types for ISA(PC104) board #4 (e.g. pc104_4=232,232,485,485,...");
-
-static int rp_init(void);
-static void rp_cleanup_module(void);
-
-module_init(rp_init);
-module_exit(rp_cleanup_module);
-
-
-MODULE_LICENSE("Dual BSD/GPL");
-
-/*************************************************************************/
-/* Module code starts here */
-
-static inline int rocket_paranoia_check(struct r_port *info,
- const char *routine)
-{
-#ifdef ROCKET_PARANOIA_CHECK
- if (!info)
- return 1;
- if (info->magic != RPORT_MAGIC) {
- printk(KERN_WARNING "Warning: bad magic number for rocketport "
- "struct in %s\n", routine);
- return 1;
- }
-#endif
- return 0;
-}
-
-
-/* Serial port receive data function. Called (from timer poll) when an AIOPIC signals
- * that receive data is present on a serial port. Pulls data from FIFO, moves it into the
- * tty layer.
- */
-static void rp_do_receive(struct r_port *info,
- struct tty_struct *tty,
- CHANNEL_t * cp, unsigned int ChanStatus)
-{
- unsigned int CharNStat;
- int ToRecv, wRecv, space;
- unsigned char *cbuf;
-
- ToRecv = sGetRxCnt(cp);
-#ifdef ROCKET_DEBUG_INTR
- printk(KERN_INFO "rp_do_receive(%d)...\n", ToRecv);
-#endif
- if (ToRecv == 0)
- return;
-
- /*
- * if status indicates there are errored characters in the
- * FIFO, then enter status mode (a word in FIFO holds
- * character and status).
- */
- if (ChanStatus & (RXFOVERFL | RXBREAK | RXFRAME | RXPARITY)) {
- if (!(ChanStatus & STATMODE)) {
-#ifdef ROCKET_DEBUG_RECEIVE
- printk(KERN_INFO "Entering STATMODE...\n");
-#endif
- ChanStatus |= STATMODE;
- sEnRxStatusMode(cp);
- }
- }
-
- /*
- * if we previously entered status mode, then read down the
- * FIFO one word at a time, pulling apart the character and
- * the status. Update error counters depending on status
- */
- if (ChanStatus & STATMODE) {
-#ifdef ROCKET_DEBUG_RECEIVE
- printk(KERN_INFO "Ignore %x, read %x...\n",
- info->ignore_status_mask, info->read_status_mask);
-#endif
- while (ToRecv) {
- char flag;
-
- CharNStat = sInW(sGetTxRxDataIO(cp));
-#ifdef ROCKET_DEBUG_RECEIVE
- printk(KERN_INFO "%x...\n", CharNStat);
-#endif
- if (CharNStat & STMBREAKH)
- CharNStat &= ~(STMFRAMEH | STMPARITYH);
- if (CharNStat & info->ignore_status_mask) {
- ToRecv--;
- continue;
- }
- CharNStat &= info->read_status_mask;
- if (CharNStat & STMBREAKH)
- flag = TTY_BREAK;
- else if (CharNStat & STMPARITYH)
- flag = TTY_PARITY;
- else if (CharNStat & STMFRAMEH)
- flag = TTY_FRAME;
- else if (CharNStat & STMRCVROVRH)
- flag = TTY_OVERRUN;
- else
- flag = TTY_NORMAL;
- tty_insert_flip_char(tty, CharNStat & 0xff, flag);
- ToRecv--;
- }
-
- /*
- * after we've emptied the FIFO in status mode, turn
- * status mode back off
- */
- if (sGetRxCnt(cp) == 0) {
-#ifdef ROCKET_DEBUG_RECEIVE
- printk(KERN_INFO "Status mode off.\n");
-#endif
- sDisRxStatusMode(cp);
- }
- } else {
- /*
- * we aren't in status mode, so read down the FIFO two
- * characters at time by doing repeated word IO
- * transfer.
- */
- space = tty_prepare_flip_string(tty, &cbuf, ToRecv);
- if (space < ToRecv) {
-#ifdef ROCKET_DEBUG_RECEIVE
- printk(KERN_INFO "rp_do_receive:insufficient space ToRecv=%d space=%d\n", ToRecv, space);
-#endif
- if (space <= 0)
- return;
- ToRecv = space;
- }
- wRecv = ToRecv >> 1;
- if (wRecv)
- sInStrW(sGetTxRxDataIO(cp), (unsigned short *) cbuf, wRecv);
- if (ToRecv & 1)
- cbuf[ToRecv - 1] = sInB(sGetTxRxDataIO(cp));
- }
- /* Push the data up to the tty layer */
- tty_flip_buffer_push(tty);
-}
-
-/*
- * Serial port transmit data function. Called from the timer polling loop as a
- * result of a bit set in xmit_flags[], indicating data (from the tty layer) is ready
- * to be sent out the serial port. Data is buffered in rp_table[line].xmit_buf, it is
- * moved to the port's xmit FIFO. *info is critical data, protected by spinlocks.
- */
-static void rp_do_transmit(struct r_port *info)
-{
- int c;
- CHANNEL_t *cp = &info->channel;
- struct tty_struct *tty;
- unsigned long flags;
-
-#ifdef ROCKET_DEBUG_INTR
- printk(KERN_DEBUG "%s\n", __func__);
-#endif
- if (!info)
- return;
- tty = tty_port_tty_get(&info->port);
-
- if (tty == NULL) {
- printk(KERN_WARNING "rp: WARNING %s called with tty==NULL\n", __func__);
- clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
- return;
- }
-
- spin_lock_irqsave(&info->slock, flags);
- info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
-
- /* Loop sending data to FIFO until done or FIFO full */
- while (1) {
- if (tty->stopped || tty->hw_stopped)
- break;
- c = min(info->xmit_fifo_room, info->xmit_cnt);
- c = min(c, XMIT_BUF_SIZE - info->xmit_tail);
- if (c <= 0 || info->xmit_fifo_room <= 0)
- break;
- sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) (info->xmit_buf + info->xmit_tail), c / 2);
- if (c & 1)
- sOutB(sGetTxRxDataIO(cp), info->xmit_buf[info->xmit_tail + c - 1]);
- info->xmit_tail += c;
- info->xmit_tail &= XMIT_BUF_SIZE - 1;
- info->xmit_cnt -= c;
- info->xmit_fifo_room -= c;
-#ifdef ROCKET_DEBUG_INTR
- printk(KERN_INFO "tx %d chars...\n", c);
-#endif
- }
-
- if (info->xmit_cnt == 0)
- clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
- if (info->xmit_cnt < WAKEUP_CHARS) {
- tty_wakeup(tty);
-#ifdef ROCKETPORT_HAVE_POLL_WAIT
- wake_up_interruptible(&tty->poll_wait);
-#endif
- }
-
- spin_unlock_irqrestore(&info->slock, flags);
- tty_kref_put(tty);
-
-#ifdef ROCKET_DEBUG_INTR
- printk(KERN_DEBUG "(%d,%d,%d,%d)...\n", info->xmit_cnt, info->xmit_head,
- info->xmit_tail, info->xmit_fifo_room);
-#endif
-}
-
-/*
- * Called when a serial port signals it has read data in it's RX FIFO.
- * It checks what interrupts are pending and services them, including
- * receiving serial data.
- */
-static void rp_handle_port(struct r_port *info)
-{
- CHANNEL_t *cp;
- struct tty_struct *tty;
- unsigned int IntMask, ChanStatus;
-
- if (!info)
- return;
-
- if ((info->port.flags & ASYNC_INITIALIZED) == 0) {
- printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
- "info->flags & NOT_INIT\n");
- return;
- }
- tty = tty_port_tty_get(&info->port);
- if (!tty) {
- printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
- "tty==NULL\n");
- return;
- }
- cp = &info->channel;
-
- IntMask = sGetChanIntID(cp) & info->intmask;
-#ifdef ROCKET_DEBUG_INTR
- printk(KERN_INFO "rp_interrupt %02x...\n", IntMask);
-#endif
- ChanStatus = sGetChanStatus(cp);
- if (IntMask & RXF_TRIG) { /* Rx FIFO trigger level */
- rp_do_receive(info, tty, cp, ChanStatus);
- }
- if (IntMask & DELTA_CD) { /* CD change */
-#if (defined(ROCKET_DEBUG_OPEN) || defined(ROCKET_DEBUG_INTR) || defined(ROCKET_DEBUG_HANGUP))
- printk(KERN_INFO "ttyR%d CD now %s...\n", info->line,
- (ChanStatus & CD_ACT) ? "on" : "off");
-#endif
- if (!(ChanStatus & CD_ACT) && info->cd_status) {
-#ifdef ROCKET_DEBUG_HANGUP
- printk(KERN_INFO "CD drop, calling hangup.\n");
-#endif
- tty_hangup(tty);
- }
- info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0;
- wake_up_interruptible(&info->port.open_wait);
- }
-#ifdef ROCKET_DEBUG_INTR
- if (IntMask & DELTA_CTS) { /* CTS change */
- printk(KERN_INFO "CTS change...\n");
- }
- if (IntMask & DELTA_DSR) { /* DSR change */
- printk(KERN_INFO "DSR change...\n");
- }
-#endif
- tty_kref_put(tty);
-}
-
-/*
- * The top level polling routine. Repeats every 1/100 HZ (10ms).
- */
-static void rp_do_poll(unsigned long dummy)
-{
- CONTROLLER_t *ctlp;
- int ctrl, aiop, ch, line;
- unsigned int xmitmask, i;
- unsigned int CtlMask;
- unsigned char AiopMask;
- Word_t bit;
-
- /* Walk through all the boards (ctrl's) */
- for (ctrl = 0; ctrl < max_board; ctrl++) {
- if (rcktpt_io_addr[ctrl] <= 0)
- continue;
-
- /* Get a ptr to the board's control struct */
- ctlp = sCtlNumToCtlPtr(ctrl);
-
- /* Get the interrupt status from the board */
-#ifdef CONFIG_PCI
- if (ctlp->BusType == isPCI)
- CtlMask = sPCIGetControllerIntStatus(ctlp);
- else
-#endif
- CtlMask = sGetControllerIntStatus(ctlp);
-
- /* Check if any AIOP read bits are set */
- for (aiop = 0; CtlMask; aiop++) {
- bit = ctlp->AiopIntrBits[aiop];
- if (CtlMask & bit) {
- CtlMask &= ~bit;
- AiopMask = sGetAiopIntStatus(ctlp, aiop);
-
- /* Check if any port read bits are set */
- for (ch = 0; AiopMask; AiopMask >>= 1, ch++) {
- if (AiopMask & 1) {
-
- /* Get the line number (/dev/ttyRx number). */
- /* Read the data from the port. */
- line = GetLineNumber(ctrl, aiop, ch);
- rp_handle_port(rp_table[line]);
- }
- }
- }
- }
-
- xmitmask = xmit_flags[ctrl];
-
- /*
- * xmit_flags contains bit-significant flags, indicating there is data
- * to xmit on the port. Bit 0 is port 0 on this board, bit 1 is port
- * 1, ... (32 total possible). The variable i has the aiop and ch
- * numbers encoded in it (port 0-7 are aiop0, 8-15 are aiop1, etc).
- */
- if (xmitmask) {
- for (i = 0; i < rocketModel[ctrl].numPorts; i++) {
- if (xmitmask & (1 << i)) {
- aiop = (i & 0x18) >> 3;
- ch = i & 0x07;
- line = GetLineNumber(ctrl, aiop, ch);
- rp_do_transmit(rp_table[line]);
- }
- }
- }
- }
-
- /*
- * Reset the timer so we get called at the next clock tick (10ms).
- */
- if (atomic_read(&rp_num_ports_open))
- mod_timer(&rocket_timer, jiffies + POLL_PERIOD);
-}
-
-/*
- * Initializes the r_port structure for a port, as well as enabling the port on
- * the board.
- * Inputs: board, aiop, chan numbers
- */
-static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
-{
- unsigned rocketMode;
- struct r_port *info;
- int line;
- CONTROLLER_T *ctlp;
-
- /* Get the next available line number */
- line = SetLineNumber(board, aiop, chan);
-
- ctlp = sCtlNumToCtlPtr(board);
-
- /* Get a r_port struct for the port, fill it in and save it globally, indexed by line number */
- info = kzalloc(sizeof (struct r_port), GFP_KERNEL);
- if (!info) {
- printk(KERN_ERR "Couldn't allocate info struct for line #%d\n",
- line);
- return;
- }
-
- info->magic = RPORT_MAGIC;
- info->line = line;
- info->ctlp = ctlp;
- info->board = board;
- info->aiop = aiop;
- info->chan = chan;
- tty_port_init(&info->port);
- info->port.ops = &rocket_port_ops;
- init_completion(&info->close_wait);
- info->flags &= ~ROCKET_MODE_MASK;
- switch (pc104[board][line]) {
- case 422:
- info->flags |= ROCKET_MODE_RS422;
- break;
- case 485:
- info->flags |= ROCKET_MODE_RS485;
- break;
- case 232:
- default:
- info->flags |= ROCKET_MODE_RS232;
- break;
- }
-
- info->intmask = RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR;
- if (sInitChan(ctlp, &info->channel, aiop, chan) == 0) {
- printk(KERN_ERR "RocketPort sInitChan(%d, %d, %d) failed!\n",
- board, aiop, chan);
- kfree(info);
- return;
- }
-
- rocketMode = info->flags & ROCKET_MODE_MASK;
-
- if ((info->flags & ROCKET_RTS_TOGGLE) || (rocketMode == ROCKET_MODE_RS485))
- sEnRTSToggle(&info->channel);
- else
- sDisRTSToggle(&info->channel);
-
- if (ctlp->boardType == ROCKET_TYPE_PC104) {
- switch (rocketMode) {
- case ROCKET_MODE_RS485:
- sSetInterfaceMode(&info->channel, InterfaceModeRS485);
- break;
- case ROCKET_MODE_RS422:
- sSetInterfaceMode(&info->channel, InterfaceModeRS422);
- break;
- case ROCKET_MODE_RS232:
- default:
- if (info->flags & ROCKET_RTS_TOGGLE)
- sSetInterfaceMode(&info->channel, InterfaceModeRS232T);
- else
- sSetInterfaceMode(&info->channel, InterfaceModeRS232);
- break;
- }
- }
- spin_lock_init(&info->slock);
- mutex_init(&info->write_mtx);
- rp_table[line] = info;
- tty_register_device(rocket_driver, line, pci_dev ? &pci_dev->dev :
- NULL);
-}
-
-/*
- * Configures a rocketport port according to its termio settings. Called from
- * user mode into the driver (exception handler). *info CD manipulation is spinlock protected.
- */
-static void configure_r_port(struct tty_struct *tty, struct r_port *info,
- struct ktermios *old_termios)
-{
- unsigned cflag;
- unsigned long flags;
- unsigned rocketMode;
- int bits, baud, divisor;
- CHANNEL_t *cp;
- struct ktermios *t = tty->termios;
-
- cp = &info->channel;
- cflag = t->c_cflag;
-
- /* Byte size and parity */
- if ((cflag & CSIZE) == CS8) {
- sSetData8(cp);
- bits = 10;
- } else {
- sSetData7(cp);
- bits = 9;
- }
- if (cflag & CSTOPB) {
- sSetStop2(cp);
- bits++;
- } else {
- sSetStop1(cp);
- }
-
- if (cflag & PARENB) {
- sEnParity(cp);
- bits++;
- if (cflag & PARODD) {
- sSetOddParity(cp);
- } else {
- sSetEvenParity(cp);
- }
- } else {
- sDisParity(cp);
- }
-
- /* baud rate */
- baud = tty_get_baud_rate(tty);
- if (!baud)
- baud = 9600;
- divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
- if ((divisor >= 8192 || divisor < 0) && old_termios) {
- baud = tty_termios_baud_rate(old_termios);
- if (!baud)
- baud = 9600;
- divisor = (rp_baud_base[info->board] / baud) - 1;
- }
- if (divisor >= 8192 || divisor < 0) {
- baud = 9600;
- divisor = (rp_baud_base[info->board] / baud) - 1;
- }
- info->cps = baud / bits;
- sSetBaud(cp, divisor);
-
- /* FIXME: Should really back compute a baud rate from the divisor */
- tty_encode_baud_rate(tty, baud, baud);
-
- if (cflag & CRTSCTS) {
- info->intmask |= DELTA_CTS;
- sEnCTSFlowCtl(cp);
- } else {
- info->intmask &= ~DELTA_CTS;
- sDisCTSFlowCtl(cp);
- }
- if (cflag & CLOCAL) {
- info->intmask &= ~DELTA_CD;
- } else {
- spin_lock_irqsave(&info->slock, flags);
- if (sGetChanStatus(cp) & CD_ACT)
- info->cd_status = 1;
- else
- info->cd_status = 0;
- info->intmask |= DELTA_CD;
- spin_unlock_irqrestore(&info->slock, flags);
- }
-
- /*
- * Handle software flow control in the board
- */
-#ifdef ROCKET_SOFT_FLOW
- if (I_IXON(tty)) {
- sEnTxSoftFlowCtl(cp);
- if (I_IXANY(tty)) {
- sEnIXANY(cp);
- } else {
- sDisIXANY(cp);
- }
- sSetTxXONChar(cp, START_CHAR(tty));
- sSetTxXOFFChar(cp, STOP_CHAR(tty));
- } else {
- sDisTxSoftFlowCtl(cp);
- sDisIXANY(cp);
- sClrTxXOFF(cp);
- }
-#endif
-
- /*
- * Set up ignore/read mask words
- */
- info->read_status_mask = STMRCVROVRH | 0xFF;
- if (I_INPCK(tty))
- info->read_status_mask |= STMFRAMEH | STMPARITYH;
- if (I_BRKINT(tty) || I_PARMRK(tty))
- info->read_status_mask |= STMBREAKH;
-
- /*
- * Characters to ignore
- */
- info->ignore_status_mask = 0;
- if (I_IGNPAR(tty))
- info->ignore_status_mask |= STMFRAMEH | STMPARITYH;
- if (I_IGNBRK(tty)) {
- info->ignore_status_mask |= STMBREAKH;
- /*
- * If we're ignoring parity and break indicators,
- * ignore overruns too. (For real raw support).
- */
- if (I_IGNPAR(tty))
- info->ignore_status_mask |= STMRCVROVRH;
- }
-
- rocketMode = info->flags & ROCKET_MODE_MASK;
-
- if ((info->flags & ROCKET_RTS_TOGGLE)
- || (rocketMode == ROCKET_MODE_RS485))
- sEnRTSToggle(cp);
- else
- sDisRTSToggle(cp);
-
- sSetRTS(&info->channel);
-
- if (cp->CtlP->boardType == ROCKET_TYPE_PC104) {
- switch (rocketMode) {
- case ROCKET_MODE_RS485:
- sSetInterfaceMode(cp, InterfaceModeRS485);
- break;
- case ROCKET_MODE_RS422:
- sSetInterfaceMode(cp, InterfaceModeRS422);
- break;
- case ROCKET_MODE_RS232:
- default:
- if (info->flags & ROCKET_RTS_TOGGLE)
- sSetInterfaceMode(cp, InterfaceModeRS232T);
- else
- sSetInterfaceMode(cp, InterfaceModeRS232);
- break;
- }
- }
-}
-
-static int carrier_raised(struct tty_port *port)
-{
- struct r_port *info = container_of(port, struct r_port, port);
- return (sGetChanStatusLo(&info->channel) & CD_ACT) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
- struct r_port *info = container_of(port, struct r_port, port);
- if (on) {
- sSetDTR(&info->channel);
- sSetRTS(&info->channel);
- } else {
- sClrDTR(&info->channel);
- sClrRTS(&info->channel);
- }
-}
-
-/*
- * Exception handler that opens a serial port. Creates xmit_buf storage, fills in
- * port's r_port struct. Initializes the port hardware.
- */
-static int rp_open(struct tty_struct *tty, struct file *filp)
-{
- struct r_port *info;
- struct tty_port *port;
- int line = 0, retval;
- CHANNEL_t *cp;
- unsigned long page;
-
- line = tty->index;
- if (line < 0 || line >= MAX_RP_PORTS || ((info = rp_table[line]) == NULL))
- return -ENXIO;
- port = &info->port;
-
- page = __get_free_page(GFP_KERNEL);
- if (!page)
- return -ENOMEM;
-
- if (port->flags & ASYNC_CLOSING) {
- retval = wait_for_completion_interruptible(&info->close_wait);
- free_page(page);
- if (retval)
- return retval;
- return ((port->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN : -ERESTARTSYS);
- }
-
- /*
- * We must not sleep from here until the port is marked fully in use.
- */
- if (info->xmit_buf)
- free_page(page);
- else
- info->xmit_buf = (unsigned char *) page;
-
- tty->driver_data = info;
- tty_port_tty_set(port, tty);
-
- if (port->count++ == 0) {
- atomic_inc(&rp_num_ports_open);
-
-#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rocket mod++ = %d...\n",
- atomic_read(&rp_num_ports_open));
-#endif
- }
-#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
-#endif
-
- /*
- * Info->count is now 1; so it's safe to sleep now.
- */
- if (!test_bit(ASYNCB_INITIALIZED, &port->flags)) {
- cp = &info->channel;
- sSetRxTrigger(cp, TRIG_1);
- if (sGetChanStatus(cp) & CD_ACT)
- info->cd_status = 1;
- else
- info->cd_status = 0;
- sDisRxStatusMode(cp);
- sFlushRxFIFO(cp);
- sFlushTxFIFO(cp);
-
- sEnInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
- sSetRxTrigger(cp, TRIG_1);
-
- sGetChanStatus(cp);
- sDisRxStatusMode(cp);
- sClrTxXOFF(cp);
-
- sDisCTSFlowCtl(cp);
- sDisTxSoftFlowCtl(cp);
-
- sEnRxFIFO(cp);
- sEnTransmit(cp);
-
- set_bit(ASYNCB_INITIALIZED, &info->port.flags);
-
- /*
- * Set up the tty->alt_speed kludge
- */
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
- tty->alt_speed = 57600;
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
- tty->alt_speed = 115200;
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
- tty->alt_speed = 230400;
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
- tty->alt_speed = 460800;
-
- configure_r_port(tty, info, NULL);
- if (tty->termios->c_cflag & CBAUD) {
- sSetDTR(cp);
- sSetRTS(cp);
- }
- }
- /* Starts (or resets) the maint polling loop */
- mod_timer(&rocket_timer, jiffies + POLL_PERIOD);
-
- retval = tty_port_block_til_ready(port, tty, filp);
- if (retval) {
-#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rp_open returning after block_til_ready with %d\n", retval);
-#endif
- return retval;
- }
- return 0;
-}
-
-/*
- * Exception handler that closes a serial port. info->port.count is considered critical.
- */
-static void rp_close(struct tty_struct *tty, struct file *filp)
-{
- struct r_port *info = tty->driver_data;
- struct tty_port *port = &info->port;
- int timeout;
- CHANNEL_t *cp;
-
- if (rocket_paranoia_check(info, "rp_close"))
- return;
-
-#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->port.count);
-#endif
-
- if (tty_port_close_start(port, tty, filp) == 0)
- return;
-
- mutex_lock(&port->mutex);
- cp = &info->channel;
- /*
- * Before we drop DTR, make sure the UART transmitter
- * has completely drained; this is especially
- * important if there is a transmit FIFO!
- */
- timeout = (sGetTxCnt(cp) + 1) * HZ / info->cps;
- if (timeout == 0)
- timeout = 1;
- rp_wait_until_sent(tty, timeout);
- clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
- sDisTransmit(cp);
- sDisInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
- sDisCTSFlowCtl(cp);
- sDisTxSoftFlowCtl(cp);
- sClrTxXOFF(cp);
- sFlushRxFIFO(cp);
- sFlushTxFIFO(cp);
- sClrRTS(cp);
- if (C_HUPCL(tty))
- sClrDTR(cp);
-
- rp_flush_buffer(tty);
-
- tty_ldisc_flush(tty);
-
- clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
- /* We can't yet use tty_port_close_end as the buffer handling in this
- driver is a bit different to the usual */
-
- if (port->blocked_open) {
- if (port->close_delay) {
- msleep_interruptible(jiffies_to_msecs(port->close_delay));
- }
- wake_up_interruptible(&port->open_wait);
- } else {
- if (info->xmit_buf) {
- free_page((unsigned long) info->xmit_buf);
- info->xmit_buf = NULL;
- }
- }
- spin_lock_irq(&port->lock);
- info->port.flags &= ~(ASYNC_INITIALIZED | ASYNC_CLOSING | ASYNC_NORMAL_ACTIVE);
- tty->closing = 0;
- spin_unlock_irq(&port->lock);
- mutex_unlock(&port->mutex);
- tty_port_tty_set(port, NULL);
-
- wake_up_interruptible(&port->close_wait);
- complete_all(&info->close_wait);
- atomic_dec(&rp_num_ports_open);
-
-#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "rocket mod-- = %d...\n",
- atomic_read(&rp_num_ports_open));
- printk(KERN_INFO "rp_close ttyR%d complete shutdown\n", info->line);
-#endif
-
-}
-
-static void rp_set_termios(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
- unsigned cflag;
-
- if (rocket_paranoia_check(info, "rp_set_termios"))
- return;
-
- cflag = tty->termios->c_cflag;
-
- /*
- * This driver doesn't support CS5 or CS6
- */
- if (((cflag & CSIZE) == CS5) || ((cflag & CSIZE) == CS6))
- tty->termios->c_cflag =
- ((cflag & ~CSIZE) | (old_termios->c_cflag & CSIZE));
- /* Or CMSPAR */
- tty->termios->c_cflag &= ~CMSPAR;
-
- configure_r_port(tty, info, old_termios);
-
- cp = &info->channel;
-
- /* Handle transition to B0 status */
- if ((old_termios->c_cflag & CBAUD) && !(tty->termios->c_cflag & CBAUD)) {
- sClrDTR(cp);
- sClrRTS(cp);
- }
-
- /* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) && (tty->termios->c_cflag & CBAUD)) {
- if (!tty->hw_stopped || !(tty->termios->c_cflag & CRTSCTS))
- sSetRTS(cp);
- sSetDTR(cp);
- }
-
- if ((old_termios->c_cflag & CRTSCTS) && !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- rp_start(tty);
- }
-}
-
-static int rp_break(struct tty_struct *tty, int break_state)
-{
- struct r_port *info = tty->driver_data;
- unsigned long flags;
-
- if (rocket_paranoia_check(info, "rp_break"))
- return -EINVAL;
-
- spin_lock_irqsave(&info->slock, flags);
- if (break_state == -1)
- sSendBreak(&info->channel);
- else
- sClrBreak(&info->channel);
- spin_unlock_irqrestore(&info->slock, flags);
- return 0;
-}
-
-/*
- * sGetChanRI used to be a macro in rocket_int.h. When the functionality for
- * the UPCI boards was added, it was decided to make this a function because
- * the macro was getting too complicated. All cases except the first one
- * (UPCIRingInd) are taken directly from the original macro.
- */
-static int sGetChanRI(CHANNEL_T * ChP)
-{
- CONTROLLER_t *CtlP = ChP->CtlP;
- int ChanNum = ChP->ChanNum;
- int RingInd = 0;
-
- if (CtlP->UPCIRingInd)
- RingInd = !(sInB(CtlP->UPCIRingInd) & sBitMapSetTbl[ChanNum]);
- else if (CtlP->AltChanRingIndicator)
- RingInd = sInB((ByteIO_t) (ChP->ChanStat + 8)) & DSR_ACT;
- else if (CtlP->boardType == ROCKET_TYPE_PC104)
- RingInd = !(sInB(CtlP->AiopIO[3]) & sBitMapSetTbl[ChanNum]);
-
- return RingInd;
-}
-
-/********************************************************************************************/
-/* Here are the routines used by rp_ioctl. These are all called from exception handlers. */
-
-/*
- * Returns the state of the serial modem control lines. These next 2 functions
- * are the way kernel versions > 2.5 handle modem control lines rather than IOCTLs.
- */
-static int rp_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct r_port *info = tty->driver_data;
- unsigned int control, result, ChanStatus;
-
- ChanStatus = sGetChanStatusLo(&info->channel);
- control = info->channel.TxControl[3];
- result = ((control & SET_RTS) ? TIOCM_RTS : 0) |
- ((control & SET_DTR) ? TIOCM_DTR : 0) |
- ((ChanStatus & CD_ACT) ? TIOCM_CAR : 0) |
- (sGetChanRI(&info->channel) ? TIOCM_RNG : 0) |
- ((ChanStatus & DSR_ACT) ? TIOCM_DSR : 0) |
- ((ChanStatus & CTS_ACT) ? TIOCM_CTS : 0);
-
- return result;
-}
-
-/*
- * Sets the modem control lines
- */
-static int rp_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct r_port *info = tty->driver_data;
-
- if (set & TIOCM_RTS)
- info->channel.TxControl[3] |= SET_RTS;
- if (set & TIOCM_DTR)
- info->channel.TxControl[3] |= SET_DTR;
- if (clear & TIOCM_RTS)
- info->channel.TxControl[3] &= ~SET_RTS;
- if (clear & TIOCM_DTR)
- info->channel.TxControl[3] &= ~SET_DTR;
-
- out32(info->channel.IndexAddr, info->channel.TxControl);
- return 0;
-}
-
-static int get_config(struct r_port *info, struct rocket_config __user *retinfo)
-{
- struct rocket_config tmp;
-
- if (!retinfo)
- return -EFAULT;
- memset(&tmp, 0, sizeof (tmp));
- mutex_lock(&info->port.mutex);
- tmp.line = info->line;
- tmp.flags = info->flags;
- tmp.close_delay = info->port.close_delay;
- tmp.closing_wait = info->port.closing_wait;
- tmp.port = rcktpt_io_addr[(info->line >> 5) & 3];
- mutex_unlock(&info->port.mutex);
-
- if (copy_to_user(retinfo, &tmp, sizeof (*retinfo)))
- return -EFAULT;
- return 0;
-}
-
-static int set_config(struct tty_struct *tty, struct r_port *info,
- struct rocket_config __user *new_info)
-{
- struct rocket_config new_serial;
-
- if (copy_from_user(&new_serial, new_info, sizeof (new_serial)))
- return -EFAULT;
-
- mutex_lock(&info->port.mutex);
- if (!capable(CAP_SYS_ADMIN))
- {
- if ((new_serial.flags & ~ROCKET_USR_MASK) != (info->flags & ~ROCKET_USR_MASK)) {
- mutex_unlock(&info->port.mutex);
- return -EPERM;
- }
- info->flags = ((info->flags & ~ROCKET_USR_MASK) | (new_serial.flags & ROCKET_USR_MASK));
- configure_r_port(tty, info, NULL);
- mutex_unlock(&info->port.mutex);
- return 0;
- }
-
- info->flags = ((info->flags & ~ROCKET_FLAGS) | (new_serial.flags & ROCKET_FLAGS));
- info->port.close_delay = new_serial.close_delay;
- info->port.closing_wait = new_serial.closing_wait;
-
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
- tty->alt_speed = 57600;
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
- tty->alt_speed = 115200;
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
- tty->alt_speed = 230400;
- if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
- tty->alt_speed = 460800;
- mutex_unlock(&info->port.mutex);
-
- configure_r_port(tty, info, NULL);
- return 0;
-}
-
-/*
- * This function fills in a rocket_ports struct with information
- * about what boards/ports are in the system. This info is passed
- * to user space. See setrocket.c where the info is used to create
- * the /dev/ttyRx ports.
- */
-static int get_ports(struct r_port *info, struct rocket_ports __user *retports)
-{
- struct rocket_ports tmp;
- int board;
-
- if (!retports)
- return -EFAULT;
- memset(&tmp, 0, sizeof (tmp));
- tmp.tty_major = rocket_driver->major;
-
- for (board = 0; board < 4; board++) {
- tmp.rocketModel[board].model = rocketModel[board].model;
- strcpy(tmp.rocketModel[board].modelString, rocketModel[board].modelString);
- tmp.rocketModel[board].numPorts = rocketModel[board].numPorts;
- tmp.rocketModel[board].loadrm2 = rocketModel[board].loadrm2;
- tmp.rocketModel[board].startingPortNumber = rocketModel[board].startingPortNumber;
- }
- if (copy_to_user(retports, &tmp, sizeof (*retports)))
- return -EFAULT;
- return 0;
-}
-
-static int reset_rm2(struct r_port *info, void __user *arg)
-{
- int reset;
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- if (copy_from_user(&reset, arg, sizeof (int)))
- return -EFAULT;
- if (reset)
- reset = 1;
-
- if (rcktpt_type[info->board] != ROCKET_TYPE_MODEMII &&
- rcktpt_type[info->board] != ROCKET_TYPE_MODEMIII)
- return -EINVAL;
-
- if (info->ctlp->BusType == isISA)
- sModemReset(info->ctlp, info->chan, reset);
- else
- sPCIModemReset(info->ctlp, info->chan, reset);
-
- return 0;
-}
-
-static int get_version(struct r_port *info, struct rocket_version __user *retvers)
-{
- if (copy_to_user(retvers, &driver_version, sizeof (*retvers)))
- return -EFAULT;
- return 0;
-}
-
-/* IOCTL call handler into the driver */
-static int rp_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct r_port *info = tty->driver_data;
- void __user *argp = (void __user *)arg;
- int ret = 0;
-
- if (cmd != RCKP_GET_PORTS && rocket_paranoia_check(info, "rp_ioctl"))
- return -ENXIO;
-
- switch (cmd) {
- case RCKP_GET_STRUCT:
- if (copy_to_user(argp, info, sizeof (struct r_port)))
- ret = -EFAULT;
- break;
- case RCKP_GET_CONFIG:
- ret = get_config(info, argp);
- break;
- case RCKP_SET_CONFIG:
- ret = set_config(tty, info, argp);
- break;
- case RCKP_GET_PORTS:
- ret = get_ports(info, argp);
- break;
- case RCKP_RESET_RM2:
- ret = reset_rm2(info, argp);
- break;
- case RCKP_GET_VERSION:
- ret = get_version(info, argp);
- break;
- default:
- ret = -ENOIOCTLCMD;
- }
- return ret;
-}
-
-static void rp_send_xchar(struct tty_struct *tty, char ch)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
-
- if (rocket_paranoia_check(info, "rp_send_xchar"))
- return;
-
- cp = &info->channel;
- if (sGetTxCnt(cp))
- sWriteTxPrioByte(cp, ch);
- else
- sWriteTxByte(sGetTxRxDataIO(cp), ch);
-}
-
-static void rp_throttle(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
-
-#ifdef ROCKET_DEBUG_THROTTLE
- printk(KERN_INFO "throttle %s: %d....\n", tty->name,
- tty->ldisc.chars_in_buffer(tty));
-#endif
-
- if (rocket_paranoia_check(info, "rp_throttle"))
- return;
-
- cp = &info->channel;
- if (I_IXOFF(tty))
- rp_send_xchar(tty, STOP_CHAR(tty));
-
- sClrRTS(&info->channel);
-}
-
-static void rp_unthrottle(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
-#ifdef ROCKET_DEBUG_THROTTLE
- printk(KERN_INFO "unthrottle %s: %d....\n", tty->name,
- tty->ldisc.chars_in_buffer(tty));
-#endif
-
- if (rocket_paranoia_check(info, "rp_throttle"))
- return;
-
- cp = &info->channel;
- if (I_IXOFF(tty))
- rp_send_xchar(tty, START_CHAR(tty));
-
- sSetRTS(&info->channel);
-}
-
-/*
- * ------------------------------------------------------------
- * rp_stop() and rp_start()
- *
- * This routines are called before setting or resetting tty->stopped.
- * They enable or disable transmitter interrupts, as necessary.
- * ------------------------------------------------------------
- */
-static void rp_stop(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
-
-#ifdef ROCKET_DEBUG_FLOW
- printk(KERN_INFO "stop %s: %d %d....\n", tty->name,
- info->xmit_cnt, info->xmit_fifo_room);
-#endif
-
- if (rocket_paranoia_check(info, "rp_stop"))
- return;
-
- if (sGetTxCnt(&info->channel))
- sDisTransmit(&info->channel);
-}
-
-static void rp_start(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
-
-#ifdef ROCKET_DEBUG_FLOW
- printk(KERN_INFO "start %s: %d %d....\n", tty->name,
- info->xmit_cnt, info->xmit_fifo_room);
-#endif
-
- if (rocket_paranoia_check(info, "rp_stop"))
- return;
-
- sEnTransmit(&info->channel);
- set_bit((info->aiop * 8) + info->chan,
- (void *) &xmit_flags[info->board]);
-}
-
-/*
- * rp_wait_until_sent() --- wait until the transmitter is empty
- */
-static void rp_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
- unsigned long orig_jiffies;
- int check_time, exit_time;
- int txcnt;
-
- if (rocket_paranoia_check(info, "rp_wait_until_sent"))
- return;
-
- cp = &info->channel;
-
- orig_jiffies = jiffies;
-#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_INFO "In RP_wait_until_sent(%d) (jiff=%lu)...\n", timeout,
- jiffies);
- printk(KERN_INFO "cps=%d...\n", info->cps);
-#endif
- while (1) {
- txcnt = sGetTxCnt(cp);
- if (!txcnt) {
- if (sGetChanStatusLo(cp) & TXSHRMT)
- break;
- check_time = (HZ / info->cps) / 5;
- } else {
- check_time = HZ * txcnt / info->cps;
- }
- if (timeout) {
- exit_time = orig_jiffies + timeout - jiffies;
- if (exit_time <= 0)
- break;
- if (exit_time < check_time)
- check_time = exit_time;
- }
- if (check_time == 0)
- check_time = 1;
-#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_INFO "txcnt = %d (jiff=%lu,check=%d)...\n", txcnt,
- jiffies, check_time);
-#endif
- msleep_interruptible(jiffies_to_msecs(check_time));
- if (signal_pending(current))
- break;
- }
- __set_current_state(TASK_RUNNING);
-#ifdef ROCKET_DEBUG_WAIT_UNTIL_SENT
- printk(KERN_INFO "txcnt = %d (jiff=%lu)...done\n", txcnt, jiffies);
-#endif
-}
-
-/*
- * rp_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-static void rp_hangup(struct tty_struct *tty)
-{
- CHANNEL_t *cp;
- struct r_port *info = tty->driver_data;
- unsigned long flags;
-
- if (rocket_paranoia_check(info, "rp_hangup"))
- return;
-
-#if (defined(ROCKET_DEBUG_OPEN) || defined(ROCKET_DEBUG_HANGUP))
- printk(KERN_INFO "rp_hangup of ttyR%d...\n", info->line);
-#endif
- rp_flush_buffer(tty);
- spin_lock_irqsave(&info->port.lock, flags);
- if (info->port.flags & ASYNC_CLOSING) {
- spin_unlock_irqrestore(&info->port.lock, flags);
- return;
- }
- if (info->port.count)
- atomic_dec(&rp_num_ports_open);
- clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
- spin_unlock_irqrestore(&info->port.lock, flags);
-
- tty_port_hangup(&info->port);
-
- cp = &info->channel;
- sDisRxFIFO(cp);
- sDisTransmit(cp);
- sDisInterrupts(cp, (TXINT_EN | MCINT_EN | RXINT_EN | SRCINT_EN | CHANINT_EN));
- sDisCTSFlowCtl(cp);
- sDisTxSoftFlowCtl(cp);
- sClrTxXOFF(cp);
- clear_bit(ASYNCB_INITIALIZED, &info->port.flags);
-
- wake_up_interruptible(&info->port.open_wait);
-}
-
-/*
- * Exception handler - write char routine. The RocketPort driver uses a
- * double-buffering strategy, with the twist that if the in-memory CPU
- * buffer is empty, and there's space in the transmit FIFO, the
- * writing routines will write directly to transmit FIFO.
- * Write buffer and counters protected by spinlocks
- */
-static int rp_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
- unsigned long flags;
-
- if (rocket_paranoia_check(info, "rp_put_char"))
- return 0;
-
- /*
- * Grab the port write mutex, locking out other processes that try to
- * write to this port
- */
- mutex_lock(&info->write_mtx);
-
-#ifdef ROCKET_DEBUG_WRITE
- printk(KERN_INFO "rp_put_char %c...\n", ch);
-#endif
-
- spin_lock_irqsave(&info->slock, flags);
- cp = &info->channel;
-
- if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room == 0)
- info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
-
- if (tty->stopped || tty->hw_stopped || info->xmit_fifo_room == 0 || info->xmit_cnt != 0) {
- info->xmit_buf[info->xmit_head++] = ch;
- info->xmit_head &= XMIT_BUF_SIZE - 1;
- info->xmit_cnt++;
- set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
- } else {
- sOutB(sGetTxRxDataIO(cp), ch);
- info->xmit_fifo_room--;
- }
- spin_unlock_irqrestore(&info->slock, flags);
- mutex_unlock(&info->write_mtx);
- return 1;
-}
-
-/*
- * Exception handler - write routine, called when user app writes to the device.
- * A per port write mutex is used to protect from another process writing to
- * this port at the same time. This other process could be running on the other CPU
- * or get control of the CPU if the copy_from_user() blocks due to a page fault (swapped out).
- * Spinlocks protect the info xmit members.
- */
-static int rp_write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
- const unsigned char *b;
- int c, retval = 0;
- unsigned long flags;
-
- if (count <= 0 || rocket_paranoia_check(info, "rp_write"))
- return 0;
-
- if (mutex_lock_interruptible(&info->write_mtx))
- return -ERESTARTSYS;
-
-#ifdef ROCKET_DEBUG_WRITE
- printk(KERN_INFO "rp_write %d chars...\n", count);
-#endif
- cp = &info->channel;
-
- if (!tty->stopped && !tty->hw_stopped && info->xmit_fifo_room < count)
- info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
-
- /*
- * If the write queue for the port is empty, and there is FIFO space, stuff bytes
- * into FIFO. Use the write queue for temp storage.
- */
- if (!tty->stopped && !tty->hw_stopped && info->xmit_cnt == 0 && info->xmit_fifo_room > 0) {
- c = min(count, info->xmit_fifo_room);
- b = buf;
-
- /* Push data into FIFO, 2 bytes at a time */
- sOutStrW(sGetTxRxDataIO(cp), (unsigned short *) b, c / 2);
-
- /* If there is a byte remaining, write it */
- if (c & 1)
- sOutB(sGetTxRxDataIO(cp), b[c - 1]);
-
- retval += c;
- buf += c;
- count -= c;
-
- spin_lock_irqsave(&info->slock, flags);
- info->xmit_fifo_room -= c;
- spin_unlock_irqrestore(&info->slock, flags);
- }
-
- /* If count is zero, we wrote it all and are done */
- if (!count)
- goto end;
-
- /* Write remaining data into the port's xmit_buf */
- while (1) {
- /* Hung up ? */
- if (!test_bit(ASYNCB_NORMAL_ACTIVE, &info->port.flags))
- goto end;
- c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1);
- c = min(c, XMIT_BUF_SIZE - info->xmit_head);
- if (c <= 0)
- break;
-
- b = buf;
- memcpy(info->xmit_buf + info->xmit_head, b, c);
-
- spin_lock_irqsave(&info->slock, flags);
- info->xmit_head =
- (info->xmit_head + c) & (XMIT_BUF_SIZE - 1);
- info->xmit_cnt += c;
- spin_unlock_irqrestore(&info->slock, flags);
-
- buf += c;
- count -= c;
- retval += c;
- }
-
- if ((retval > 0) && !tty->stopped && !tty->hw_stopped)
- set_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
-
-end:
- if (info->xmit_cnt < WAKEUP_CHARS) {
- tty_wakeup(tty);
-#ifdef ROCKETPORT_HAVE_POLL_WAIT
- wake_up_interruptible(&tty->poll_wait);
-#endif
- }
- mutex_unlock(&info->write_mtx);
- return retval;
-}
-
-/*
- * Return the number of characters that can be sent. We estimate
- * only using the in-memory transmit buffer only, and ignore the
- * potential space in the transmit FIFO.
- */
-static int rp_write_room(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
- int ret;
-
- if (rocket_paranoia_check(info, "rp_write_room"))
- return 0;
-
- ret = XMIT_BUF_SIZE - info->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
-#ifdef ROCKET_DEBUG_WRITE
- printk(KERN_INFO "rp_write_room returns %d...\n", ret);
-#endif
- return ret;
-}
-
-/*
- * Return the number of characters in the buffer. Again, this only
- * counts those characters in the in-memory transmit buffer.
- */
-static int rp_chars_in_buffer(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
-
- if (rocket_paranoia_check(info, "rp_chars_in_buffer"))
- return 0;
-
- cp = &info->channel;
-
-#ifdef ROCKET_DEBUG_WRITE
- printk(KERN_INFO "rp_chars_in_buffer returns %d...\n", info->xmit_cnt);
-#endif
- return info->xmit_cnt;
-}
-
-/*
- * Flushes the TX fifo for a port, deletes data in the xmit_buf stored in the
- * r_port struct for the port. Note that spinlock are used to protect info members,
- * do not call this function if the spinlock is already held.
- */
-static void rp_flush_buffer(struct tty_struct *tty)
-{
- struct r_port *info = tty->driver_data;
- CHANNEL_t *cp;
- unsigned long flags;
-
- if (rocket_paranoia_check(info, "rp_flush_buffer"))
- return;
-
- spin_lock_irqsave(&info->slock, flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- spin_unlock_irqrestore(&info->slock, flags);
-
-#ifdef ROCKETPORT_HAVE_POLL_WAIT
- wake_up_interruptible(&tty->poll_wait);
-#endif
- tty_wakeup(tty);
-
- cp = &info->channel;
- sFlushTxFIFO(cp);
-}
-
-#ifdef CONFIG_PCI
-
-static struct pci_device_id __devinitdata __used rocket_pci_ids[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_RP, PCI_ANY_ID) },
- { }
-};
-MODULE_DEVICE_TABLE(pci, rocket_pci_ids);
-
-/*
- * Called when a PCI card is found. Retrieves and stores model information,
- * init's aiopic and serial port hardware.
- * Inputs: i is the board number (0-n)
- */
-static __init int register_PCI(int i, struct pci_dev *dev)
-{
- int num_aiops, aiop, max_num_aiops, num_chan, chan;
- unsigned int aiopio[MAX_AIOPS_PER_BOARD];
- char *str, *board_type;
- CONTROLLER_t *ctlp;
-
- int fast_clock = 0;
- int altChanRingIndicator = 0;
- int ports_per_aiop = 8;
- WordIO_t ConfigIO = 0;
- ByteIO_t UPCIRingInd = 0;
-
- if (!dev || pci_enable_device(dev))
- return 0;
-
- rcktpt_io_addr[i] = pci_resource_start(dev, 0);
-
- rcktpt_type[i] = ROCKET_TYPE_NORMAL;
- rocketModel[i].loadrm2 = 0;
- rocketModel[i].startingPortNumber = nextLineNumber;
-
- /* Depending on the model, set up some config variables */
- switch (dev->device) {
- case PCI_DEVICE_ID_RP4QUAD:
- str = "Quadcable";
- max_num_aiops = 1;
- ports_per_aiop = 4;
- rocketModel[i].model = MODEL_RP4QUAD;
- strcpy(rocketModel[i].modelString, "RocketPort 4 port w/quad cable");
- rocketModel[i].numPorts = 4;
- break;
- case PCI_DEVICE_ID_RP8OCTA:
- str = "Octacable";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_RP8OCTA;
- strcpy(rocketModel[i].modelString, "RocketPort 8 port w/octa cable");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_URP8OCTA:
- str = "Octacable";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_UPCI_RP8OCTA;
- strcpy(rocketModel[i].modelString, "RocketPort UPCI 8 port w/octa cable");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_RP8INTF:
- str = "8";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_RP8INTF;
- strcpy(rocketModel[i].modelString, "RocketPort 8 port w/external I/F");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_URP8INTF:
- str = "8";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_UPCI_RP8INTF;
- strcpy(rocketModel[i].modelString, "RocketPort UPCI 8 port w/external I/F");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_RP8J:
- str = "8J";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_RP8J;
- strcpy(rocketModel[i].modelString, "RocketPort 8 port w/RJ11 connectors");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_RP4J:
- str = "4J";
- max_num_aiops = 1;
- ports_per_aiop = 4;
- rocketModel[i].model = MODEL_RP4J;
- strcpy(rocketModel[i].modelString, "RocketPort 4 port w/RJ45 connectors");
- rocketModel[i].numPorts = 4;
- break;
- case PCI_DEVICE_ID_RP8SNI:
- str = "8 (DB78 Custom)";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_RP8SNI;
- strcpy(rocketModel[i].modelString, "RocketPort 8 port w/ custom DB78");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_RP16SNI:
- str = "16 (DB78 Custom)";
- max_num_aiops = 2;
- rocketModel[i].model = MODEL_RP16SNI;
- strcpy(rocketModel[i].modelString, "RocketPort 16 port w/ custom DB78");
- rocketModel[i].numPorts = 16;
- break;
- case PCI_DEVICE_ID_RP16INTF:
- str = "16";
- max_num_aiops = 2;
- rocketModel[i].model = MODEL_RP16INTF;
- strcpy(rocketModel[i].modelString, "RocketPort 16 port w/external I/F");
- rocketModel[i].numPorts = 16;
- break;
- case PCI_DEVICE_ID_URP16INTF:
- str = "16";
- max_num_aiops = 2;
- rocketModel[i].model = MODEL_UPCI_RP16INTF;
- strcpy(rocketModel[i].modelString, "RocketPort UPCI 16 port w/external I/F");
- rocketModel[i].numPorts = 16;
- break;
- case PCI_DEVICE_ID_CRP16INTF:
- str = "16";
- max_num_aiops = 2;
- rocketModel[i].model = MODEL_CPCI_RP16INTF;
- strcpy(rocketModel[i].modelString, "RocketPort Compact PCI 16 port w/external I/F");
- rocketModel[i].numPorts = 16;
- break;
- case PCI_DEVICE_ID_RP32INTF:
- str = "32";
- max_num_aiops = 4;
- rocketModel[i].model = MODEL_RP32INTF;
- strcpy(rocketModel[i].modelString, "RocketPort 32 port w/external I/F");
- rocketModel[i].numPorts = 32;
- break;
- case PCI_DEVICE_ID_URP32INTF:
- str = "32";
- max_num_aiops = 4;
- rocketModel[i].model = MODEL_UPCI_RP32INTF;
- strcpy(rocketModel[i].modelString, "RocketPort UPCI 32 port w/external I/F");
- rocketModel[i].numPorts = 32;
- break;
- case PCI_DEVICE_ID_RPP4:
- str = "Plus Quadcable";
- max_num_aiops = 1;
- ports_per_aiop = 4;
- altChanRingIndicator++;
- fast_clock++;
- rocketModel[i].model = MODEL_RPP4;
- strcpy(rocketModel[i].modelString, "RocketPort Plus 4 port");
- rocketModel[i].numPorts = 4;
- break;
- case PCI_DEVICE_ID_RPP8:
- str = "Plus Octacable";
- max_num_aiops = 2;
- ports_per_aiop = 4;
- altChanRingIndicator++;
- fast_clock++;
- rocketModel[i].model = MODEL_RPP8;
- strcpy(rocketModel[i].modelString, "RocketPort Plus 8 port");
- rocketModel[i].numPorts = 8;
- break;
- case PCI_DEVICE_ID_RP2_232:
- str = "Plus 2 (RS-232)";
- max_num_aiops = 1;
- ports_per_aiop = 2;
- altChanRingIndicator++;
- fast_clock++;
- rocketModel[i].model = MODEL_RP2_232;
- strcpy(rocketModel[i].modelString, "RocketPort Plus 2 port RS232");
- rocketModel[i].numPorts = 2;
- break;
- case PCI_DEVICE_ID_RP2_422:
- str = "Plus 2 (RS-422)";
- max_num_aiops = 1;
- ports_per_aiop = 2;
- altChanRingIndicator++;
- fast_clock++;
- rocketModel[i].model = MODEL_RP2_422;
- strcpy(rocketModel[i].modelString, "RocketPort Plus 2 port RS422");
- rocketModel[i].numPorts = 2;
- break;
- case PCI_DEVICE_ID_RP6M:
-
- max_num_aiops = 1;
- ports_per_aiop = 6;
- str = "6-port";
-
- /* If revision is 1, the rocketmodem flash must be loaded.
- * If it is 2 it is a "socketed" version. */
- if (dev->revision == 1) {
- rcktpt_type[i] = ROCKET_TYPE_MODEMII;
- rocketModel[i].loadrm2 = 1;
- } else {
- rcktpt_type[i] = ROCKET_TYPE_MODEM;
- }
-
- rocketModel[i].model = MODEL_RP6M;
- strcpy(rocketModel[i].modelString, "RocketModem 6 port");
- rocketModel[i].numPorts = 6;
- break;
- case PCI_DEVICE_ID_RP4M:
- max_num_aiops = 1;
- ports_per_aiop = 4;
- str = "4-port";
- if (dev->revision == 1) {
- rcktpt_type[i] = ROCKET_TYPE_MODEMII;
- rocketModel[i].loadrm2 = 1;
- } else {
- rcktpt_type[i] = ROCKET_TYPE_MODEM;
- }
-
- rocketModel[i].model = MODEL_RP4M;
- strcpy(rocketModel[i].modelString, "RocketModem 4 port");
- rocketModel[i].numPorts = 4;
- break;
- default:
- str = "(unknown/unsupported)";
- max_num_aiops = 0;
- break;
- }
-
- /*
- * Check for UPCI boards.
- */
-
- switch (dev->device) {
- case PCI_DEVICE_ID_URP32INTF:
- case PCI_DEVICE_ID_URP8INTF:
- case PCI_DEVICE_ID_URP16INTF:
- case PCI_DEVICE_ID_CRP16INTF:
- case PCI_DEVICE_ID_URP8OCTA:
- rcktpt_io_addr[i] = pci_resource_start(dev, 2);
- ConfigIO = pci_resource_start(dev, 1);
- if (dev->device == PCI_DEVICE_ID_URP8OCTA) {
- UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
-
- /*
- * Check for octa or quad cable.
- */
- if (!
- (sInW(ConfigIO + _PCI_9030_GPIO_CTRL) &
- PCI_GPIO_CTRL_8PORT)) {
- str = "Quadcable";
- ports_per_aiop = 4;
- rocketModel[i].numPorts = 4;
- }
- }
- break;
- case PCI_DEVICE_ID_UPCI_RM3_8PORT:
- str = "8 ports";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_UPCI_RM3_8PORT;
- strcpy(rocketModel[i].modelString, "RocketModem III 8 port");
- rocketModel[i].numPorts = 8;
- rcktpt_io_addr[i] = pci_resource_start(dev, 2);
- UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
- ConfigIO = pci_resource_start(dev, 1);
- rcktpt_type[i] = ROCKET_TYPE_MODEMIII;
- break;
- case PCI_DEVICE_ID_UPCI_RM3_4PORT:
- str = "4 ports";
- max_num_aiops = 1;
- rocketModel[i].model = MODEL_UPCI_RM3_4PORT;
- strcpy(rocketModel[i].modelString, "RocketModem III 4 port");
- rocketModel[i].numPorts = 4;
- rcktpt_io_addr[i] = pci_resource_start(dev, 2);
- UPCIRingInd = rcktpt_io_addr[i] + _PCI_9030_RING_IND;
- ConfigIO = pci_resource_start(dev, 1);
- rcktpt_type[i] = ROCKET_TYPE_MODEMIII;
- break;
- default:
- break;
- }
-
- switch (rcktpt_type[i]) {
- case ROCKET_TYPE_MODEM:
- board_type = "RocketModem";
- break;
- case ROCKET_TYPE_MODEMII:
- board_type = "RocketModem II";
- break;
- case ROCKET_TYPE_MODEMIII:
- board_type = "RocketModem III";
- break;
- default:
- board_type = "RocketPort";
- break;
- }
-
- if (fast_clock) {
- sClockPrescale = 0x12; /* mod 2 (divide by 3) */
- rp_baud_base[i] = 921600;
- } else {
- /*
- * If support_low_speed is set, use the slow clock
- * prescale, which supports 50 bps
- */
- if (support_low_speed) {
- /* mod 9 (divide by 10) prescale */
- sClockPrescale = 0x19;
- rp_baud_base[i] = 230400;
- } else {
- /* mod 4 (devide by 5) prescale */
- sClockPrescale = 0x14;
- rp_baud_base[i] = 460800;
- }
- }
-
- for (aiop = 0; aiop < max_num_aiops; aiop++)
- aiopio[aiop] = rcktpt_io_addr[i] + (aiop * 0x40);
- ctlp = sCtlNumToCtlPtr(i);
- num_aiops = sPCIInitController(ctlp, i, aiopio, max_num_aiops, ConfigIO, 0, FREQ_DIS, 0, altChanRingIndicator, UPCIRingInd);
- for (aiop = 0; aiop < max_num_aiops; aiop++)
- ctlp->AiopNumChan[aiop] = ports_per_aiop;
-
- dev_info(&dev->dev, "comtrol PCI controller #%d found at "
- "address %04lx, %d AIOP(s) (%s), creating ttyR%d - %ld\n",
- i, rcktpt_io_addr[i], num_aiops, rocketModel[i].modelString,
- rocketModel[i].startingPortNumber,
- rocketModel[i].startingPortNumber + rocketModel[i].numPorts-1);
-
- if (num_aiops <= 0) {
- rcktpt_io_addr[i] = 0;
- return (0);
- }
- is_PCI[i] = 1;
-
- /* Reset the AIOPIC, init the serial ports */
- for (aiop = 0; aiop < num_aiops; aiop++) {
- sResetAiopByNum(ctlp, aiop);
- num_chan = ports_per_aiop;
- for (chan = 0; chan < num_chan; chan++)
- init_r_port(i, aiop, chan, dev);
- }
-
- /* Rocket modems must be reset */
- if ((rcktpt_type[i] == ROCKET_TYPE_MODEM) ||
- (rcktpt_type[i] == ROCKET_TYPE_MODEMII) ||
- (rcktpt_type[i] == ROCKET_TYPE_MODEMIII)) {
- num_chan = ports_per_aiop;
- for (chan = 0; chan < num_chan; chan++)
- sPCIModemReset(ctlp, chan, 1);
- msleep(500);
- for (chan = 0; chan < num_chan; chan++)
- sPCIModemReset(ctlp, chan, 0);
- msleep(500);
- rmSpeakerReset(ctlp, rocketModel[i].model);
- }
- return (1);
-}
-
-/*
- * Probes for PCI cards, inits them if found
- * Input: board_found = number of ISA boards already found, or the
- * starting board number
- * Returns: Number of PCI boards found
- */
-static int __init init_PCI(int boards_found)
-{
- struct pci_dev *dev = NULL;
- int count = 0;
-
- /* Work through the PCI device list, pulling out ours */
- while ((dev = pci_get_device(PCI_VENDOR_ID_RP, PCI_ANY_ID, dev))) {
- if (register_PCI(count + boards_found, dev))
- count++;
- }
- return (count);
-}
-
-#endif /* CONFIG_PCI */
-
-/*
- * Probes for ISA cards
- * Input: i = the board number to look for
- * Returns: 1 if board found, 0 else
- */
-static int __init init_ISA(int i)
-{
- int num_aiops, num_chan = 0, total_num_chan = 0;
- int aiop, chan;
- unsigned int aiopio[MAX_AIOPS_PER_BOARD];
- CONTROLLER_t *ctlp;
- char *type_string;
-
- /* If io_addr is zero, no board configured */
- if (rcktpt_io_addr[i] == 0)
- return (0);
-
- /* Reserve the IO region */
- if (!request_region(rcktpt_io_addr[i], 64, "Comtrol RocketPort")) {
- printk(KERN_ERR "Unable to reserve IO region for configured "
- "ISA RocketPort at address 0x%lx, board not "
- "installed...\n", rcktpt_io_addr[i]);
- rcktpt_io_addr[i] = 0;
- return (0);
- }
-
- ctlp = sCtlNumToCtlPtr(i);
-
- ctlp->boardType = rcktpt_type[i];
-
- switch (rcktpt_type[i]) {
- case ROCKET_TYPE_PC104:
- type_string = "(PC104)";
- break;
- case ROCKET_TYPE_MODEM:
- type_string = "(RocketModem)";
- break;
- case ROCKET_TYPE_MODEMII:
- type_string = "(RocketModem II)";
- break;
- default:
- type_string = "";
- break;
- }
-
- /*
- * If support_low_speed is set, use the slow clock prescale,
- * which supports 50 bps
- */
- if (support_low_speed) {
- sClockPrescale = 0x19; /* mod 9 (divide by 10) prescale */
- rp_baud_base[i] = 230400;
- } else {
- sClockPrescale = 0x14; /* mod 4 (devide by 5) prescale */
- rp_baud_base[i] = 460800;
- }
-
- for (aiop = 0; aiop < MAX_AIOPS_PER_BOARD; aiop++)
- aiopio[aiop] = rcktpt_io_addr[i] + (aiop * 0x400);
-
- num_aiops = sInitController(ctlp, i, controller + (i * 0x400), aiopio, MAX_AIOPS_PER_BOARD, 0, FREQ_DIS, 0);
-
- if (ctlp->boardType == ROCKET_TYPE_PC104) {
- sEnAiop(ctlp, 2); /* only one AIOPIC, but these */
- sEnAiop(ctlp, 3); /* CSels used for other stuff */
- }
-
- /* If something went wrong initing the AIOP's release the ISA IO memory */
- if (num_aiops <= 0) {
- release_region(rcktpt_io_addr[i], 64);
- rcktpt_io_addr[i] = 0;
- return (0);
- }
-
- rocketModel[i].startingPortNumber = nextLineNumber;
-
- for (aiop = 0; aiop < num_aiops; aiop++) {
- sResetAiopByNum(ctlp, aiop);
- sEnAiop(ctlp, aiop);
- num_chan = sGetAiopNumChan(ctlp, aiop);
- total_num_chan += num_chan;
- for (chan = 0; chan < num_chan; chan++)
- init_r_port(i, aiop, chan, NULL);
- }
- is_PCI[i] = 0;
- if ((rcktpt_type[i] == ROCKET_TYPE_MODEM) || (rcktpt_type[i] == ROCKET_TYPE_MODEMII)) {
- num_chan = sGetAiopNumChan(ctlp, 0);
- total_num_chan = num_chan;
- for (chan = 0; chan < num_chan; chan++)
- sModemReset(ctlp, chan, 1);
- msleep(500);
- for (chan = 0; chan < num_chan; chan++)
- sModemReset(ctlp, chan, 0);
- msleep(500);
- strcpy(rocketModel[i].modelString, "RocketModem ISA");
- } else {
- strcpy(rocketModel[i].modelString, "RocketPort ISA");
- }
- rocketModel[i].numPorts = total_num_chan;
- rocketModel[i].model = MODEL_ISA;
-
- printk(KERN_INFO "RocketPort ISA card #%d found at 0x%lx - %d AIOPs %s\n",
- i, rcktpt_io_addr[i], num_aiops, type_string);
-
- printk(KERN_INFO "Installing %s, creating /dev/ttyR%d - %ld\n",
- rocketModel[i].modelString,
- rocketModel[i].startingPortNumber,
- rocketModel[i].startingPortNumber +
- rocketModel[i].numPorts - 1);
-
- return (1);
-}
-
-static const struct tty_operations rocket_ops = {
- .open = rp_open,
- .close = rp_close,
- .write = rp_write,
- .put_char = rp_put_char,
- .write_room = rp_write_room,
- .chars_in_buffer = rp_chars_in_buffer,
- .flush_buffer = rp_flush_buffer,
- .ioctl = rp_ioctl,
- .throttle = rp_throttle,
- .unthrottle = rp_unthrottle,
- .set_termios = rp_set_termios,
- .stop = rp_stop,
- .start = rp_start,
- .hangup = rp_hangup,
- .break_ctl = rp_break,
- .send_xchar = rp_send_xchar,
- .wait_until_sent = rp_wait_until_sent,
- .tiocmget = rp_tiocmget,
- .tiocmset = rp_tiocmset,
-};
-
-static const struct tty_port_operations rocket_port_ops = {
- .carrier_raised = carrier_raised,
- .dtr_rts = dtr_rts,
-};
-
-/*
- * The module "startup" routine; it's run when the module is loaded.
- */
-static int __init rp_init(void)
-{
- int ret = -ENOMEM, pci_boards_found, isa_boards_found, i;
-
- printk(KERN_INFO "RocketPort device driver module, version %s, %s\n",
- ROCKET_VERSION, ROCKET_DATE);
-
- rocket_driver = alloc_tty_driver(MAX_RP_PORTS);
- if (!rocket_driver)
- goto err;
-
- /*
- * If board 1 is non-zero, there is at least one ISA configured. If controller is
- * zero, use the default controller IO address of board1 + 0x40.
- */
- if (board1) {
- if (controller == 0)
- controller = board1 + 0x40;
- } else {
- controller = 0; /* Used as a flag, meaning no ISA boards */
- }
-
- /* If an ISA card is configured, reserve the 4 byte IO space for the Mudbac controller */
- if (controller && (!request_region(controller, 4, "Comtrol RocketPort"))) {
- printk(KERN_ERR "Unable to reserve IO region for first "
- "configured ISA RocketPort controller 0x%lx. "
- "Driver exiting\n", controller);
- ret = -EBUSY;
- goto err_tty;
- }
-
- /* Store ISA variable retrieved from command line or .conf file. */
- rcktpt_io_addr[0] = board1;
- rcktpt_io_addr[1] = board2;
- rcktpt_io_addr[2] = board3;
- rcktpt_io_addr[3] = board4;
-
- rcktpt_type[0] = modem1 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
- rcktpt_type[0] = pc104_1[0] ? ROCKET_TYPE_PC104 : rcktpt_type[0];
- rcktpt_type[1] = modem2 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
- rcktpt_type[1] = pc104_2[0] ? ROCKET_TYPE_PC104 : rcktpt_type[1];
- rcktpt_type[2] = modem3 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
- rcktpt_type[2] = pc104_3[0] ? ROCKET_TYPE_PC104 : rcktpt_type[2];
- rcktpt_type[3] = modem4 ? ROCKET_TYPE_MODEM : ROCKET_TYPE_NORMAL;
- rcktpt_type[3] = pc104_4[0] ? ROCKET_TYPE_PC104 : rcktpt_type[3];
-
- /*
- * Set up the tty driver structure and then register this
- * driver with the tty layer.
- */
-
- rocket_driver->owner = THIS_MODULE;
- rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV;
- rocket_driver->name = "ttyR";
- rocket_driver->driver_name = "Comtrol RocketPort";
- rocket_driver->major = TTY_ROCKET_MAJOR;
- rocket_driver->minor_start = 0;
- rocket_driver->type = TTY_DRIVER_TYPE_SERIAL;
- rocket_driver->subtype = SERIAL_TYPE_NORMAL;
- rocket_driver->init_termios = tty_std_termios;
- rocket_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- rocket_driver->init_termios.c_ispeed = 9600;
- rocket_driver->init_termios.c_ospeed = 9600;
-#ifdef ROCKET_SOFT_FLOW
- rocket_driver->flags |= TTY_DRIVER_REAL_RAW;
-#endif
- tty_set_operations(rocket_driver, &rocket_ops);
-
- ret = tty_register_driver(rocket_driver);
- if (ret < 0) {
- printk(KERN_ERR "Couldn't install tty RocketPort driver\n");
- goto err_controller;
- }
-
-#ifdef ROCKET_DEBUG_OPEN
- printk(KERN_INFO "RocketPort driver is major %d\n", rocket_driver.major);
-#endif
-
- /*
- * OK, let's probe each of the controllers looking for boards. Any boards found
- * will be initialized here.
- */
- isa_boards_found = 0;
- pci_boards_found = 0;
-
- for (i = 0; i < NUM_BOARDS; i++) {
- if (init_ISA(i))
- isa_boards_found++;
- }
-
-#ifdef CONFIG_PCI
- if (isa_boards_found < NUM_BOARDS)
- pci_boards_found = init_PCI(isa_boards_found);
-#endif
-
- max_board = pci_boards_found + isa_boards_found;
-
- if (max_board == 0) {
- printk(KERN_ERR "No rocketport ports found; unloading driver\n");
- ret = -ENXIO;
- goto err_ttyu;
- }
-
- return 0;
-err_ttyu:
- tty_unregister_driver(rocket_driver);
-err_controller:
- if (controller)
- release_region(controller, 4);
-err_tty:
- put_tty_driver(rocket_driver);
-err:
- return ret;
-}
-
-
-static void rp_cleanup_module(void)
-{
- int retval;
- int i;
-
- del_timer_sync(&rocket_timer);
-
- retval = tty_unregister_driver(rocket_driver);
- if (retval)
- printk(KERN_ERR "Error %d while trying to unregister "
- "rocketport driver\n", -retval);
-
- for (i = 0; i < MAX_RP_PORTS; i++)
- if (rp_table[i]) {
- tty_unregister_device(rocket_driver, i);
- kfree(rp_table[i]);
- }
-
- put_tty_driver(rocket_driver);
-
- for (i = 0; i < NUM_BOARDS; i++) {
- if (rcktpt_io_addr[i] <= 0 || is_PCI[i])
- continue;
- release_region(rcktpt_io_addr[i], 64);
- }
- if (controller)
- release_region(controller, 4);
-}
-
-/***************************************************************************
-Function: sInitController
-Purpose: Initialization of controller global registers and controller
- structure.
-Call: sInitController(CtlP,CtlNum,MudbacIO,AiopIOList,AiopIOListSize,
- IRQNum,Frequency,PeriodicOnly)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int CtlNum; Controller number
- ByteIO_t MudbacIO; Mudbac base I/O address.
- ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
- This list must be in the order the AIOPs will be found on the
- controller. Once an AIOP in the list is not found, it is
- assumed that there are no more AIOPs on the controller.
- int AiopIOListSize; Number of addresses in AiopIOList
- int IRQNum; Interrupt Request number. Can be any of the following:
- 0: Disable global interrupts
- 3: IRQ 3
- 4: IRQ 4
- 5: IRQ 5
- 9: IRQ 9
- 10: IRQ 10
- 11: IRQ 11
- 12: IRQ 12
- 15: IRQ 15
- Byte_t Frequency: A flag identifying the frequency
- of the periodic interrupt, can be any one of the following:
- FREQ_DIS - periodic interrupt disabled
- FREQ_137HZ - 137 Hertz
- FREQ_69HZ - 69 Hertz
- FREQ_34HZ - 34 Hertz
- FREQ_17HZ - 17 Hertz
- FREQ_9HZ - 9 Hertz
- FREQ_4HZ - 4 Hertz
- If IRQNum is set to 0 the Frequency parameter is
- overidden, it is forced to a value of FREQ_DIS.
- int PeriodicOnly: 1 if all interrupts except the periodic
- interrupt are to be blocked.
- 0 is both the periodic interrupt and
- other channel interrupts are allowed.
- If IRQNum is set to 0 the PeriodicOnly parameter is
- overidden, it is forced to a value of 0.
-Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
- initialization failed.
-
-Comments:
- If periodic interrupts are to be disabled but AIOP interrupts
- are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
-
- If interrupts are to be completely disabled set IRQNum to 0.
-
- Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
- invalid combination.
-
- This function performs initialization of global interrupt modes,
- but it does not actually enable global interrupts. To enable
- and disable global interrupts use functions sEnGlobalInt() and
- sDisGlobalInt(). Enabling of global interrupts is normally not
- done until all other initializations are complete.
-
- Even if interrupts are globally enabled, they must also be
- individually enabled for each channel that is to generate
- interrupts.
-
-Warnings: No range checking on any of the parameters is done.
-
- No context switches are allowed while executing this function.
-
- After this function all AIOPs on the controller are disabled,
- they can be enabled with sEnAiop().
-*/
-static int sInitController(CONTROLLER_T * CtlP, int CtlNum, ByteIO_t MudbacIO,
- ByteIO_t * AiopIOList, int AiopIOListSize,
- int IRQNum, Byte_t Frequency, int PeriodicOnly)
-{
- int i;
- ByteIO_t io;
- int done;
-
- CtlP->AiopIntrBits = aiop_intr_bits;
- CtlP->AltChanRingIndicator = 0;
- CtlP->CtlNum = CtlNum;
- CtlP->CtlID = CTLID_0001; /* controller release 1 */
- CtlP->BusType = isISA;
- CtlP->MBaseIO = MudbacIO;
- CtlP->MReg1IO = MudbacIO + 1;
- CtlP->MReg2IO = MudbacIO + 2;
- CtlP->MReg3IO = MudbacIO + 3;
-#if 1
- CtlP->MReg2 = 0; /* interrupt disable */
- CtlP->MReg3 = 0; /* no periodic interrupts */
-#else
- if (sIRQMap[IRQNum] == 0) { /* interrupts globally disabled */
- CtlP->MReg2 = 0; /* interrupt disable */
- CtlP->MReg3 = 0; /* no periodic interrupts */
- } else {
- CtlP->MReg2 = sIRQMap[IRQNum]; /* set IRQ number */
- CtlP->MReg3 = Frequency; /* set frequency */
- if (PeriodicOnly) { /* periodic interrupt only */
- CtlP->MReg3 |= PERIODIC_ONLY;
- }
- }
-#endif
- sOutB(CtlP->MReg2IO, CtlP->MReg2);
- sOutB(CtlP->MReg3IO, CtlP->MReg3);
- sControllerEOI(CtlP); /* clear EOI if warm init */
- /* Init AIOPs */
- CtlP->NumAiop = 0;
- for (i = done = 0; i < AiopIOListSize; i++) {
- io = AiopIOList[i];
- CtlP->AiopIO[i] = (WordIO_t) io;
- CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
- sOutB(CtlP->MReg2IO, CtlP->MReg2 | (i & 0x03)); /* AIOP index */
- sOutB(MudbacIO, (Byte_t) (io >> 6)); /* set up AIOP I/O in MUDBAC */
- if (done)
- continue;
- sEnAiop(CtlP, i); /* enable the AIOP */
- CtlP->AiopID[i] = sReadAiopID(io); /* read AIOP ID */
- if (CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
- done = 1; /* done looking for AIOPs */
- else {
- CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
- sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE); /* clock prescaler */
- sOutB(io + _INDX_DATA, sClockPrescale);
- CtlP->NumAiop++; /* bump count of AIOPs */
- }
- sDisAiop(CtlP, i); /* disable AIOP */
- }
-
- if (CtlP->NumAiop == 0)
- return (-1);
- else
- return (CtlP->NumAiop);
-}
-
-/***************************************************************************
-Function: sPCIInitController
-Purpose: Initialization of controller global registers and controller
- structure.
-Call: sPCIInitController(CtlP,CtlNum,AiopIOList,AiopIOListSize,
- IRQNum,Frequency,PeriodicOnly)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int CtlNum; Controller number
- ByteIO_t *AiopIOList; List of I/O addresses for each AIOP.
- This list must be in the order the AIOPs will be found on the
- controller. Once an AIOP in the list is not found, it is
- assumed that there are no more AIOPs on the controller.
- int AiopIOListSize; Number of addresses in AiopIOList
- int IRQNum; Interrupt Request number. Can be any of the following:
- 0: Disable global interrupts
- 3: IRQ 3
- 4: IRQ 4
- 5: IRQ 5
- 9: IRQ 9
- 10: IRQ 10
- 11: IRQ 11
- 12: IRQ 12
- 15: IRQ 15
- Byte_t Frequency: A flag identifying the frequency
- of the periodic interrupt, can be any one of the following:
- FREQ_DIS - periodic interrupt disabled
- FREQ_137HZ - 137 Hertz
- FREQ_69HZ - 69 Hertz
- FREQ_34HZ - 34 Hertz
- FREQ_17HZ - 17 Hertz
- FREQ_9HZ - 9 Hertz
- FREQ_4HZ - 4 Hertz
- If IRQNum is set to 0 the Frequency parameter is
- overidden, it is forced to a value of FREQ_DIS.
- int PeriodicOnly: 1 if all interrupts except the periodic
- interrupt are to be blocked.
- 0 is both the periodic interrupt and
- other channel interrupts are allowed.
- If IRQNum is set to 0 the PeriodicOnly parameter is
- overidden, it is forced to a value of 0.
-Return: int: Number of AIOPs on the controller, or CTLID_NULL if controller
- initialization failed.
-
-Comments:
- If periodic interrupts are to be disabled but AIOP interrupts
- are allowed, set Frequency to FREQ_DIS and PeriodicOnly to 0.
-
- If interrupts are to be completely disabled set IRQNum to 0.
-
- Setting Frequency to FREQ_DIS and PeriodicOnly to 1 is an
- invalid combination.
-
- This function performs initialization of global interrupt modes,
- but it does not actually enable global interrupts. To enable
- and disable global interrupts use functions sEnGlobalInt() and
- sDisGlobalInt(). Enabling of global interrupts is normally not
- done until all other initializations are complete.
-
- Even if interrupts are globally enabled, they must also be
- individually enabled for each channel that is to generate
- interrupts.
-
-Warnings: No range checking on any of the parameters is done.
-
- No context switches are allowed while executing this function.
-
- After this function all AIOPs on the controller are disabled,
- they can be enabled with sEnAiop().
-*/
-static int sPCIInitController(CONTROLLER_T * CtlP, int CtlNum,
- ByteIO_t * AiopIOList, int AiopIOListSize,
- WordIO_t ConfigIO, int IRQNum, Byte_t Frequency,
- int PeriodicOnly, int altChanRingIndicator,
- int UPCIRingInd)
-{
- int i;
- ByteIO_t io;
-
- CtlP->AltChanRingIndicator = altChanRingIndicator;
- CtlP->UPCIRingInd = UPCIRingInd;
- CtlP->CtlNum = CtlNum;
- CtlP->CtlID = CTLID_0001; /* controller release 1 */
- CtlP->BusType = isPCI; /* controller release 1 */
-
- if (ConfigIO) {
- CtlP->isUPCI = 1;
- CtlP->PCIIO = ConfigIO + _PCI_9030_INT_CTRL;
- CtlP->PCIIO2 = ConfigIO + _PCI_9030_GPIO_CTRL;
- CtlP->AiopIntrBits = upci_aiop_intr_bits;
- } else {
- CtlP->isUPCI = 0;
- CtlP->PCIIO =
- (WordIO_t) ((ByteIO_t) AiopIOList[0] + _PCI_INT_FUNC);
- CtlP->AiopIntrBits = aiop_intr_bits;
- }
-
- sPCIControllerEOI(CtlP); /* clear EOI if warm init */
- /* Init AIOPs */
- CtlP->NumAiop = 0;
- for (i = 0; i < AiopIOListSize; i++) {
- io = AiopIOList[i];
- CtlP->AiopIO[i] = (WordIO_t) io;
- CtlP->AiopIntChanIO[i] = io + _INT_CHAN;
-
- CtlP->AiopID[i] = sReadAiopID(io); /* read AIOP ID */
- if (CtlP->AiopID[i] == AIOPID_NULL) /* if AIOP does not exist */
- break; /* done looking for AIOPs */
-
- CtlP->AiopNumChan[i] = sReadAiopNumChan((WordIO_t) io); /* num channels in AIOP */
- sOutW((WordIO_t) io + _INDX_ADDR, _CLK_PRE); /* clock prescaler */
- sOutB(io + _INDX_DATA, sClockPrescale);
- CtlP->NumAiop++; /* bump count of AIOPs */
- }
-
- if (CtlP->NumAiop == 0)
- return (-1);
- else
- return (CtlP->NumAiop);
-}
-
-/***************************************************************************
-Function: sReadAiopID
-Purpose: Read the AIOP idenfication number directly from an AIOP.
-Call: sReadAiopID(io)
- ByteIO_t io: AIOP base I/O address
-Return: int: Flag AIOPID_XXXX if a valid AIOP is found, where X
- is replace by an identifying number.
- Flag AIOPID_NULL if no valid AIOP is found
-Warnings: No context switches are allowed while executing this function.
-
-*/
-static int sReadAiopID(ByteIO_t io)
-{
- Byte_t AiopID; /* ID byte from AIOP */
-
- sOutB(io + _CMD_REG, RESET_ALL); /* reset AIOP */
- sOutB(io + _CMD_REG, 0x0);
- AiopID = sInW(io + _CHN_STAT0) & 0x07;
- if (AiopID == 0x06)
- return (1);
- else /* AIOP does not exist */
- return (-1);
-}
-
-/***************************************************************************
-Function: sReadAiopNumChan
-Purpose: Read the number of channels available in an AIOP directly from
- an AIOP.
-Call: sReadAiopNumChan(io)
- WordIO_t io: AIOP base I/O address
-Return: int: The number of channels available
-Comments: The number of channels is determined by write/reads from identical
- offsets within the SRAM address spaces for channels 0 and 4.
- If the channel 4 space is mirrored to channel 0 it is a 4 channel
- AIOP, otherwise it is an 8 channel.
-Warnings: No context switches are allowed while executing this function.
-*/
-static int sReadAiopNumChan(WordIO_t io)
-{
- Word_t x;
- static Byte_t R[4] = { 0x00, 0x00, 0x34, 0x12 };
-
- /* write to chan 0 SRAM */
- out32((DWordIO_t) io + _INDX_ADDR, R);
- sOutW(io + _INDX_ADDR, 0); /* read from SRAM, chan 0 */
- x = sInW(io + _INDX_DATA);
- sOutW(io + _INDX_ADDR, 0x4000); /* read from SRAM, chan 4 */
- if (x != sInW(io + _INDX_DATA)) /* if different must be 8 chan */
- return (8);
- else
- return (4);
-}
-
-/***************************************************************************
-Function: sInitChan
-Purpose: Initialization of a channel and channel structure
-Call: sInitChan(CtlP,ChP,AiopNum,ChanNum)
- CONTROLLER_T *CtlP; Ptr to controller structure
- CHANNEL_T *ChP; Ptr to channel structure
- int AiopNum; AIOP number within controller
- int ChanNum; Channel number within AIOP
-Return: int: 1 if initialization succeeded, 0 if it fails because channel
- number exceeds number of channels available in AIOP.
-Comments: This function must be called before a channel can be used.
-Warnings: No range checking on any of the parameters is done.
-
- No context switches are allowed while executing this function.
-*/
-static int sInitChan(CONTROLLER_T * CtlP, CHANNEL_T * ChP, int AiopNum,
- int ChanNum)
-{
- int i;
- WordIO_t AiopIO;
- WordIO_t ChIOOff;
- Byte_t *ChR;
- Word_t ChOff;
- static Byte_t R[4];
- int brd9600;
-
- if (ChanNum >= CtlP->AiopNumChan[AiopNum])
- return 0; /* exceeds num chans in AIOP */
-
- /* Channel, AIOP, and controller identifiers */
- ChP->CtlP = CtlP;
- ChP->ChanID = CtlP->AiopID[AiopNum];
- ChP->AiopNum = AiopNum;
- ChP->ChanNum = ChanNum;
-
- /* Global direct addresses */
- AiopIO = CtlP->AiopIO[AiopNum];
- ChP->Cmd = (ByteIO_t) AiopIO + _CMD_REG;
- ChP->IntChan = (ByteIO_t) AiopIO + _INT_CHAN;
- ChP->IntMask = (ByteIO_t) AiopIO + _INT_MASK;
- ChP->IndexAddr = (DWordIO_t) AiopIO + _INDX_ADDR;
- ChP->IndexData = AiopIO + _INDX_DATA;
-
- /* Channel direct addresses */
- ChIOOff = AiopIO + ChP->ChanNum * 2;
- ChP->TxRxData = ChIOOff + _TD0;
- ChP->ChanStat = ChIOOff + _CHN_STAT0;
- ChP->TxRxCount = ChIOOff + _FIFO_CNT0;
- ChP->IntID = (ByteIO_t) AiopIO + ChP->ChanNum + _INT_ID0;
-
- /* Initialize the channel from the RData array */
- for (i = 0; i < RDATASIZE; i += 4) {
- R[0] = RData[i];
- R[1] = RData[i + 1] + 0x10 * ChanNum;
- R[2] = RData[i + 2];
- R[3] = RData[i + 3];
- out32(ChP->IndexAddr, R);
- }
-
- ChR = ChP->R;
- for (i = 0; i < RREGDATASIZE; i += 4) {
- ChR[i] = RRegData[i];
- ChR[i + 1] = RRegData[i + 1] + 0x10 * ChanNum;
- ChR[i + 2] = RRegData[i + 2];
- ChR[i + 3] = RRegData[i + 3];
- }
-
- /* Indexed registers */
- ChOff = (Word_t) ChanNum *0x1000;
-
- if (sClockPrescale == 0x14)
- brd9600 = 47;
- else
- brd9600 = 23;
-
- ChP->BaudDiv[0] = (Byte_t) (ChOff + _BAUD);
- ChP->BaudDiv[1] = (Byte_t) ((ChOff + _BAUD) >> 8);
- ChP->BaudDiv[2] = (Byte_t) brd9600;
- ChP->BaudDiv[3] = (Byte_t) (brd9600 >> 8);
- out32(ChP->IndexAddr, ChP->BaudDiv);
-
- ChP->TxControl[0] = (Byte_t) (ChOff + _TX_CTRL);
- ChP->TxControl[1] = (Byte_t) ((ChOff + _TX_CTRL) >> 8);
- ChP->TxControl[2] = 0;
- ChP->TxControl[3] = 0;
- out32(ChP->IndexAddr, ChP->TxControl);
-
- ChP->RxControl[0] = (Byte_t) (ChOff + _RX_CTRL);
- ChP->RxControl[1] = (Byte_t) ((ChOff + _RX_CTRL) >> 8);
- ChP->RxControl[2] = 0;
- ChP->RxControl[3] = 0;
- out32(ChP->IndexAddr, ChP->RxControl);
-
- ChP->TxEnables[0] = (Byte_t) (ChOff + _TX_ENBLS);
- ChP->TxEnables[1] = (Byte_t) ((ChOff + _TX_ENBLS) >> 8);
- ChP->TxEnables[2] = 0;
- ChP->TxEnables[3] = 0;
- out32(ChP->IndexAddr, ChP->TxEnables);
-
- ChP->TxCompare[0] = (Byte_t) (ChOff + _TXCMP1);
- ChP->TxCompare[1] = (Byte_t) ((ChOff + _TXCMP1) >> 8);
- ChP->TxCompare[2] = 0;
- ChP->TxCompare[3] = 0;
- out32(ChP->IndexAddr, ChP->TxCompare);
-
- ChP->TxReplace1[0] = (Byte_t) (ChOff + _TXREP1B1);
- ChP->TxReplace1[1] = (Byte_t) ((ChOff + _TXREP1B1) >> 8);
- ChP->TxReplace1[2] = 0;
- ChP->TxReplace1[3] = 0;
- out32(ChP->IndexAddr, ChP->TxReplace1);
-
- ChP->TxReplace2[0] = (Byte_t) (ChOff + _TXREP2);
- ChP->TxReplace2[1] = (Byte_t) ((ChOff + _TXREP2) >> 8);
- ChP->TxReplace2[2] = 0;
- ChP->TxReplace2[3] = 0;
- out32(ChP->IndexAddr, ChP->TxReplace2);
-
- ChP->TxFIFOPtrs = ChOff + _TXF_OUTP;
- ChP->TxFIFO = ChOff + _TX_FIFO;
-
- sOutB(ChP->Cmd, (Byte_t) ChanNum | RESTXFCNT); /* apply reset Tx FIFO count */
- sOutB(ChP->Cmd, (Byte_t) ChanNum); /* remove reset Tx FIFO count */
- sOutW((WordIO_t) ChP->IndexAddr, ChP->TxFIFOPtrs); /* clear Tx in/out ptrs */
- sOutW(ChP->IndexData, 0);
- ChP->RxFIFOPtrs = ChOff + _RXF_OUTP;
- ChP->RxFIFO = ChOff + _RX_FIFO;
-
- sOutB(ChP->Cmd, (Byte_t) ChanNum | RESRXFCNT); /* apply reset Rx FIFO count */
- sOutB(ChP->Cmd, (Byte_t) ChanNum); /* remove reset Rx FIFO count */
- sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs); /* clear Rx out ptr */
- sOutW(ChP->IndexData, 0);
- sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs + 2); /* clear Rx in ptr */
- sOutW(ChP->IndexData, 0);
- ChP->TxPrioCnt = ChOff + _TXP_CNT;
- sOutW((WordIO_t) ChP->IndexAddr, ChP->TxPrioCnt);
- sOutB(ChP->IndexData, 0);
- ChP->TxPrioPtr = ChOff + _TXP_PNTR;
- sOutW((WordIO_t) ChP->IndexAddr, ChP->TxPrioPtr);
- sOutB(ChP->IndexData, 0);
- ChP->TxPrioBuf = ChOff + _TXP_BUF;
- sEnRxProcessor(ChP); /* start the Rx processor */
-
- return 1;
-}
-
-/***************************************************************************
-Function: sStopRxProcessor
-Purpose: Stop the receive processor from processing a channel.
-Call: sStopRxProcessor(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-
-Comments: The receive processor can be started again with sStartRxProcessor().
- This function causes the receive processor to skip over the
- stopped channel. It does not stop it from processing other channels.
-
-Warnings: No context switches are allowed while executing this function.
-
- Do not leave the receive processor stopped for more than one
- character time.
-
- After calling this function a delay of 4 uS is required to ensure
- that the receive processor is no longer processing this channel.
-*/
-static void sStopRxProcessor(CHANNEL_T * ChP)
-{
- Byte_t R[4];
-
- R[0] = ChP->R[0];
- R[1] = ChP->R[1];
- R[2] = 0x0a;
- R[3] = ChP->R[3];
- out32(ChP->IndexAddr, R);
-}
-
-/***************************************************************************
-Function: sFlushRxFIFO
-Purpose: Flush the Rx FIFO
-Call: sFlushRxFIFO(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: void
-Comments: To prevent data from being enqueued or dequeued in the Tx FIFO
- while it is being flushed the receive processor is stopped
- and the transmitter is disabled. After these operations a
- 4 uS delay is done before clearing the pointers to allow
- the receive processor to stop. These items are handled inside
- this function.
-Warnings: No context switches are allowed while executing this function.
-*/
-static void sFlushRxFIFO(CHANNEL_T * ChP)
-{
- int i;
- Byte_t Ch; /* channel number within AIOP */
- int RxFIFOEnabled; /* 1 if Rx FIFO enabled */
-
- if (sGetRxCnt(ChP) == 0) /* Rx FIFO empty */
- return; /* don't need to flush */
-
- RxFIFOEnabled = 0;
- if (ChP->R[0x32] == 0x08) { /* Rx FIFO is enabled */
- RxFIFOEnabled = 1;
- sDisRxFIFO(ChP); /* disable it */
- for (i = 0; i < 2000 / 200; i++) /* delay 2 uS to allow proc to disable FIFO */
- sInB(ChP->IntChan); /* depends on bus i/o timing */
- }
- sGetChanStatus(ChP); /* clear any pending Rx errors in chan stat */
- Ch = (Byte_t) sGetChanNum(ChP);
- sOutB(ChP->Cmd, Ch | RESRXFCNT); /* apply reset Rx FIFO count */
- sOutB(ChP->Cmd, Ch); /* remove reset Rx FIFO count */
- sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs); /* clear Rx out ptr */
- sOutW(ChP->IndexData, 0);
- sOutW((WordIO_t) ChP->IndexAddr, ChP->RxFIFOPtrs + 2); /* clear Rx in ptr */
- sOutW(ChP->IndexData, 0);
- if (RxFIFOEnabled)
- sEnRxFIFO(ChP); /* enable Rx FIFO */
-}
-
-/***************************************************************************
-Function: sFlushTxFIFO
-Purpose: Flush the Tx FIFO
-Call: sFlushTxFIFO(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: void
-Comments: To prevent data from being enqueued or dequeued in the Tx FIFO
- while it is being flushed the receive processor is stopped
- and the transmitter is disabled. After these operations a
- 4 uS delay is done before clearing the pointers to allow
- the receive processor to stop. These items are handled inside
- this function.
-Warnings: No context switches are allowed while executing this function.
-*/
-static void sFlushTxFIFO(CHANNEL_T * ChP)
-{
- int i;
- Byte_t Ch; /* channel number within AIOP */
- int TxEnabled; /* 1 if transmitter enabled */
-
- if (sGetTxCnt(ChP) == 0) /* Tx FIFO empty */
- return; /* don't need to flush */
-
- TxEnabled = 0;
- if (ChP->TxControl[3] & TX_ENABLE) {
- TxEnabled = 1;
- sDisTransmit(ChP); /* disable transmitter */
- }
- sStopRxProcessor(ChP); /* stop Rx processor */
- for (i = 0; i < 4000 / 200; i++) /* delay 4 uS to allow proc to stop */
- sInB(ChP->IntChan); /* depends on bus i/o timing */
- Ch = (Byte_t) sGetChanNum(ChP);
- sOutB(ChP->Cmd, Ch | RESTXFCNT); /* apply reset Tx FIFO count */
- sOutB(ChP->Cmd, Ch); /* remove reset Tx FIFO count */
- sOutW((WordIO_t) ChP->IndexAddr, ChP->TxFIFOPtrs); /* clear Tx in/out ptrs */
- sOutW(ChP->IndexData, 0);
- if (TxEnabled)
- sEnTransmit(ChP); /* enable transmitter */
- sStartRxProcessor(ChP); /* restart Rx processor */
-}
-
-/***************************************************************************
-Function: sWriteTxPrioByte
-Purpose: Write a byte of priority transmit data to a channel
-Call: sWriteTxPrioByte(ChP,Data)
- CHANNEL_T *ChP; Ptr to channel structure
- Byte_t Data; The transmit data byte
-
-Return: int: 1 if the bytes is successfully written, otherwise 0.
-
-Comments: The priority byte is transmitted before any data in the Tx FIFO.
-
-Warnings: No context switches are allowed while executing this function.
-*/
-static int sWriteTxPrioByte(CHANNEL_T * ChP, Byte_t Data)
-{
- Byte_t DWBuf[4]; /* buffer for double word writes */
- Word_t *WordPtr; /* must be far because Win SS != DS */
- register DWordIO_t IndexAddr;
-
- if (sGetTxCnt(ChP) > 1) { /* write it to Tx priority buffer */
- IndexAddr = ChP->IndexAddr;
- sOutW((WordIO_t) IndexAddr, ChP->TxPrioCnt); /* get priority buffer status */
- if (sInB((ByteIO_t) ChP->IndexData) & PRI_PEND) /* priority buffer busy */
- return (0); /* nothing sent */
-
- WordPtr = (Word_t *) (&DWBuf[0]);
- *WordPtr = ChP->TxPrioBuf; /* data byte address */
-
- DWBuf[2] = Data; /* data byte value */
- out32(IndexAddr, DWBuf); /* write it out */
-
- *WordPtr = ChP->TxPrioCnt; /* Tx priority count address */
-
- DWBuf[2] = PRI_PEND + 1; /* indicate 1 byte pending */
- DWBuf[3] = 0; /* priority buffer pointer */
- out32(IndexAddr, DWBuf); /* write it out */
- } else { /* write it to Tx FIFO */
-
- sWriteTxByte(sGetTxRxDataIO(ChP), Data);
- }
- return (1); /* 1 byte sent */
-}
-
-/***************************************************************************
-Function: sEnInterrupts
-Purpose: Enable one or more interrupts for a channel
-Call: sEnInterrupts(ChP,Flags)
- CHANNEL_T *ChP; Ptr to channel structure
- Word_t Flags: Interrupt enable flags, can be any combination
- of the following flags:
- TXINT_EN: Interrupt on Tx FIFO empty
- RXINT_EN: Interrupt on Rx FIFO at trigger level (see
- sSetRxTrigger())
- SRCINT_EN: Interrupt on SRC (Special Rx Condition)
- MCINT_EN: Interrupt on modem input change
- CHANINT_EN: Allow channel interrupt signal to the AIOP's
- Interrupt Channel Register.
-Return: void
-Comments: If an interrupt enable flag is set in Flags, that interrupt will be
- enabled. If an interrupt enable flag is not set in Flags, that
- interrupt will not be changed. Interrupts can be disabled with
- function sDisInterrupts().
-
- This function sets the appropriate bit for the channel in the AIOP's
- Interrupt Mask Register if the CHANINT_EN flag is set. This allows
- this channel's bit to be set in the AIOP's Interrupt Channel Register.
-
- Interrupts must also be globally enabled before channel interrupts
- will be passed on to the host. This is done with function
- sEnGlobalInt().
-
- In some cases it may be desirable to disable interrupts globally but
- enable channel interrupts. This would allow the global interrupt
- status register to be used to determine which AIOPs need service.
-*/
-static void sEnInterrupts(CHANNEL_T * ChP, Word_t Flags)
-{
- Byte_t Mask; /* Interrupt Mask Register */
-
- ChP->RxControl[2] |=
- ((Byte_t) Flags & (RXINT_EN | SRCINT_EN | MCINT_EN));
-
- out32(ChP->IndexAddr, ChP->RxControl);
-
- ChP->TxControl[2] |= ((Byte_t) Flags & TXINT_EN);
-
- out32(ChP->IndexAddr, ChP->TxControl);
-
- if (Flags & CHANINT_EN) {
- Mask = sInB(ChP->IntMask) | sBitMapSetTbl[ChP->ChanNum];
- sOutB(ChP->IntMask, Mask);
- }
-}
-
-/***************************************************************************
-Function: sDisInterrupts
-Purpose: Disable one or more interrupts for a channel
-Call: sDisInterrupts(ChP,Flags)
- CHANNEL_T *ChP; Ptr to channel structure
- Word_t Flags: Interrupt flags, can be any combination
- of the following flags:
- TXINT_EN: Interrupt on Tx FIFO empty
- RXINT_EN: Interrupt on Rx FIFO at trigger level (see
- sSetRxTrigger())
- SRCINT_EN: Interrupt on SRC (Special Rx Condition)
- MCINT_EN: Interrupt on modem input change
- CHANINT_EN: Disable channel interrupt signal to the
- AIOP's Interrupt Channel Register.
-Return: void
-Comments: If an interrupt flag is set in Flags, that interrupt will be
- disabled. If an interrupt flag is not set in Flags, that
- interrupt will not be changed. Interrupts can be enabled with
- function sEnInterrupts().
-
- This function clears the appropriate bit for the channel in the AIOP's
- Interrupt Mask Register if the CHANINT_EN flag is set. This blocks
- this channel's bit from being set in the AIOP's Interrupt Channel
- Register.
-*/
-static void sDisInterrupts(CHANNEL_T * ChP, Word_t Flags)
-{
- Byte_t Mask; /* Interrupt Mask Register */
-
- ChP->RxControl[2] &=
- ~((Byte_t) Flags & (RXINT_EN | SRCINT_EN | MCINT_EN));
- out32(ChP->IndexAddr, ChP->RxControl);
- ChP->TxControl[2] &= ~((Byte_t) Flags & TXINT_EN);
- out32(ChP->IndexAddr, ChP->TxControl);
-
- if (Flags & CHANINT_EN) {
- Mask = sInB(ChP->IntMask) & sBitMapClrTbl[ChP->ChanNum];
- sOutB(ChP->IntMask, Mask);
- }
-}
-
-static void sSetInterfaceMode(CHANNEL_T * ChP, Byte_t mode)
-{
- sOutB(ChP->CtlP->AiopIO[2], (mode & 0x18) | ChP->ChanNum);
-}
-
-/*
- * Not an official SSCI function, but how to reset RocketModems.
- * ISA bus version
- */
-static void sModemReset(CONTROLLER_T * CtlP, int chan, int on)
-{
- ByteIO_t addr;
- Byte_t val;
-
- addr = CtlP->AiopIO[0] + 0x400;
- val = sInB(CtlP->MReg3IO);
- /* if AIOP[1] is not enabled, enable it */
- if ((val & 2) == 0) {
- val = sInB(CtlP->MReg2IO);
- sOutB(CtlP->MReg2IO, (val & 0xfc) | (1 & 0x03));
- sOutB(CtlP->MBaseIO, (unsigned char) (addr >> 6));
- }
-
- sEnAiop(CtlP, 1);
- if (!on)
- addr += 8;
- sOutB(addr + chan, 0); /* apply or remove reset */
- sDisAiop(CtlP, 1);
-}
-
-/*
- * Not an official SSCI function, but how to reset RocketModems.
- * PCI bus version
- */
-static void sPCIModemReset(CONTROLLER_T * CtlP, int chan, int on)
-{
- ByteIO_t addr;
-
- addr = CtlP->AiopIO[0] + 0x40; /* 2nd AIOP */
- if (!on)
- addr += 8;
- sOutB(addr + chan, 0); /* apply or remove reset */
-}
-
-/* Resets the speaker controller on RocketModem II and III devices */
-static void rmSpeakerReset(CONTROLLER_T * CtlP, unsigned long model)
-{
- ByteIO_t addr;
-
- /* RocketModem II speaker control is at the 8th port location of offset 0x40 */
- if ((model == MODEL_RP4M) || (model == MODEL_RP6M)) {
- addr = CtlP->AiopIO[0] + 0x4F;
- sOutB(addr, 0);
- }
-
- /* RocketModem III speaker control is at the 1st port location of offset 0x80 */
- if ((model == MODEL_UPCI_RM3_8PORT)
- || (model == MODEL_UPCI_RM3_4PORT)) {
- addr = CtlP->AiopIO[0] + 0x88;
- sOutB(addr, 0);
- }
-}
-
-/* Returns the line number given the controller (board), aiop and channel number */
-static unsigned char GetLineNumber(int ctrl, int aiop, int ch)
-{
- return lineNumbers[(ctrl << 5) | (aiop << 3) | ch];
-}
-
-/*
- * Stores the line number associated with a given controller (board), aiop
- * and channel number.
- * Returns: The line number assigned
- */
-static unsigned char SetLineNumber(int ctrl, int aiop, int ch)
-{
- lineNumbers[(ctrl << 5) | (aiop << 3) | ch] = nextLineNumber++;
- return (nextLineNumber - 1);
-}
diff --git a/drivers/char/rocket.h b/drivers/char/rocket.h
deleted file mode 100644
index ec863f35f1a..00000000000
--- a/drivers/char/rocket.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * rocket.h --- the exported interface of the rocket driver to its configuration program.
- *
- * Written by Theodore Ts'o, Copyright 1997.
- * Copyright 1997 Comtrol Corporation.
- *
- */
-
-/* Model Information Struct */
-typedef struct {
- unsigned long model;
- char modelString[80];
- unsigned long numPorts;
- int loadrm2;
- int startingPortNumber;
-} rocketModel_t;
-
-struct rocket_config {
- int line;
- int flags;
- int closing_wait;
- int close_delay;
- int port;
- int reserved[32];
-};
-
-struct rocket_ports {
- int tty_major;
- int callout_major;
- rocketModel_t rocketModel[8];
-};
-
-struct rocket_version {
- char rocket_version[32];
- char rocket_date[32];
- char reserved[64];
-};
-
-/*
- * Rocketport flags
- */
-/*#define ROCKET_CALLOUT_NOHUP 0x00000001 */
-#define ROCKET_FORCE_CD 0x00000002
-#define ROCKET_HUP_NOTIFY 0x00000004
-#define ROCKET_SPLIT_TERMIOS 0x00000008
-#define ROCKET_SPD_MASK 0x00000070
-#define ROCKET_SPD_HI 0x00000010 /* Use 56000 instead of 38400 bps */
-#define ROCKET_SPD_VHI 0x00000020 /* Use 115200 instead of 38400 bps */
-#define ROCKET_SPD_SHI 0x00000030 /* Use 230400 instead of 38400 bps */
-#define ROCKET_SPD_WARP 0x00000040 /* Use 460800 instead of 38400 bps */
-#define ROCKET_SAK 0x00000080
-#define ROCKET_SESSION_LOCKOUT 0x00000100
-#define ROCKET_PGRP_LOCKOUT 0x00000200
-#define ROCKET_RTS_TOGGLE 0x00000400
-#define ROCKET_MODE_MASK 0x00003000
-#define ROCKET_MODE_RS232 0x00000000
-#define ROCKET_MODE_RS485 0x00001000
-#define ROCKET_MODE_RS422 0x00002000
-#define ROCKET_FLAGS 0x00003FFF
-
-#define ROCKET_USR_MASK 0x0071 /* Legal flags that non-privileged
- * users can set or reset */
-
-/*
- * For closing_wait and closing_wait2
- */
-#define ROCKET_CLOSING_WAIT_NONE ASYNC_CLOSING_WAIT_NONE
-#define ROCKET_CLOSING_WAIT_INF ASYNC_CLOSING_WAIT_INF
-
-/*
- * Rocketport ioctls -- "RP"
- */
-#define RCKP_GET_STRUCT 0x00525001
-#define RCKP_GET_CONFIG 0x00525002
-#define RCKP_SET_CONFIG 0x00525003
-#define RCKP_GET_PORTS 0x00525004
-#define RCKP_RESET_RM2 0x00525005
-#define RCKP_GET_VERSION 0x00525006
-
-/* Rocketport Models */
-#define MODEL_RP32INTF 0x0001 /* RP 32 port w/external I/F */
-#define MODEL_RP8INTF 0x0002 /* RP 8 port w/external I/F */
-#define MODEL_RP16INTF 0x0003 /* RP 16 port w/external I/F */
-#define MODEL_RP8OCTA 0x0005 /* RP 8 port w/octa cable */
-#define MODEL_RP4QUAD 0x0004 /* RP 4 port w/quad cable */
-#define MODEL_RP8J 0x0006 /* RP 8 port w/RJ11 connectors */
-#define MODEL_RP4J 0x0007 /* RP 4 port w/RJ45 connectors */
-#define MODEL_RP8SNI 0x0008 /* RP 8 port w/ DB78 SNI connector */
-#define MODEL_RP16SNI 0x0009 /* RP 16 port w/ DB78 SNI connector */
-#define MODEL_RPP4 0x000A /* RP Plus 4 port */
-#define MODEL_RPP8 0x000B /* RP Plus 8 port */
-#define MODEL_RP2_232 0x000E /* RP Plus 2 port RS232 */
-#define MODEL_RP2_422 0x000F /* RP Plus 2 port RS232 */
-
-/* Rocketmodem II Models */
-#define MODEL_RP6M 0x000C /* RM 6 port */
-#define MODEL_RP4M 0x000D /* RM 4 port */
-
-/* Universal PCI boards */
-#define MODEL_UPCI_RP32INTF 0x0801 /* RP UPCI 32 port w/external I/F */
-#define MODEL_UPCI_RP8INTF 0x0802 /* RP UPCI 8 port w/external I/F */
-#define MODEL_UPCI_RP16INTF 0x0803 /* RP UPCI 16 port w/external I/F */
-#define MODEL_UPCI_RP8OCTA 0x0805 /* RP UPCI 8 port w/octa cable */
-#define MODEL_UPCI_RM3_8PORT 0x080C /* RP UPCI Rocketmodem III 8 port */
-#define MODEL_UPCI_RM3_4PORT 0x080C /* RP UPCI Rocketmodem III 4 port */
-
-/* Compact PCI 16 port */
-#define MODEL_CPCI_RP16INTF 0x0903 /* RP Compact PCI 16 port w/external I/F */
-
-/* All ISA boards */
-#define MODEL_ISA 0x1000
diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
deleted file mode 100644
index 67e0f1e778a..00000000000
--- a/drivers/char/rocket_int.h
+++ /dev/null
@@ -1,1214 +0,0 @@
-/*
- * rocket_int.h --- internal header file for rocket.c
- *
- * Written by Theodore Ts'o, Copyright 1997.
- * Copyright 1997 Comtrol Corporation.
- *
- */
-
-/*
- * Definition of the types in rcktpt_type
- */
-#define ROCKET_TYPE_NORMAL 0
-#define ROCKET_TYPE_MODEM 1
-#define ROCKET_TYPE_MODEMII 2
-#define ROCKET_TYPE_MODEMIII 3
-#define ROCKET_TYPE_PC104 4
-
-#include <linux/mutex.h>
-
-#include <asm/io.h>
-#include <asm/byteorder.h>
-
-typedef unsigned char Byte_t;
-typedef unsigned int ByteIO_t;
-
-typedef unsigned int Word_t;
-typedef unsigned int WordIO_t;
-
-typedef unsigned int DWordIO_t;
-
-/*
- * Note! Normally the Linux I/O macros already take care of
- * byte-swapping the I/O instructions. However, all accesses using
- * sOutDW aren't really 32-bit accesses, but should be handled in byte
- * order. Hence the use of the cpu_to_le32() macro to byte-swap
- * things to no-op the byte swapping done by the big-endian outl()
- * instruction.
- */
-
-static inline void sOutB(unsigned short port, unsigned char value)
-{
-#ifdef ROCKET_DEBUG_IO
- printk(KERN_DEBUG "sOutB(%x, %x)...\n", port, value);
-#endif
- outb_p(value, port);
-}
-
-static inline void sOutW(unsigned short port, unsigned short value)
-{
-#ifdef ROCKET_DEBUG_IO
- printk(KERN_DEBUG "sOutW(%x, %x)...\n", port, value);
-#endif
- outw_p(value, port);
-}
-
-static inline void out32(unsigned short port, Byte_t *p)
-{
- u32 value = get_unaligned_le32(p);
-#ifdef ROCKET_DEBUG_IO
- printk(KERN_DEBUG "out32(%x, %lx)...\n", port, value);
-#endif
- outl_p(value, port);
-}
-
-static inline unsigned char sInB(unsigned short port)
-{
- return inb_p(port);
-}
-
-static inline unsigned short sInW(unsigned short port)
-{
- return inw_p(port);
-}
-
-/* This is used to move arrays of bytes so byte swapping isn't appropriate. */
-#define sOutStrW(port, addr, count) if (count) outsw(port, addr, count)
-#define sInStrW(port, addr, count) if (count) insw(port, addr, count)
-
-#define CTL_SIZE 8
-#define AIOP_CTL_SIZE 4
-#define CHAN_AIOP_SIZE 8
-#define MAX_PORTS_PER_AIOP 8
-#define MAX_AIOPS_PER_BOARD 4
-#define MAX_PORTS_PER_BOARD 32
-
-/* Bus type ID */
-#define isISA 0
-#define isPCI 1
-#define isMC 2
-
-/* Controller ID numbers */
-#define CTLID_NULL -1 /* no controller exists */
-#define CTLID_0001 0x0001 /* controller release 1 */
-
-/* AIOP ID numbers, identifies AIOP type implementing channel */
-#define AIOPID_NULL -1 /* no AIOP or channel exists */
-#define AIOPID_0001 0x0001 /* AIOP release 1 */
-
-/************************************************************************
- Global Register Offsets - Direct Access - Fixed values
-************************************************************************/
-
-#define _CMD_REG 0x38 /* Command Register 8 Write */
-#define _INT_CHAN 0x39 /* Interrupt Channel Register 8 Read */
-#define _INT_MASK 0x3A /* Interrupt Mask Register 8 Read / Write */
-#define _UNUSED 0x3B /* Unused 8 */
-#define _INDX_ADDR 0x3C /* Index Register Address 16 Write */
-#define _INDX_DATA 0x3E /* Index Register Data 8/16 Read / Write */
-
-/************************************************************************
- Channel Register Offsets for 1st channel in AIOP - Direct Access
-************************************************************************/
-#define _TD0 0x00 /* Transmit Data 16 Write */
-#define _RD0 0x00 /* Receive Data 16 Read */
-#define _CHN_STAT0 0x20 /* Channel Status 8/16 Read / Write */
-#define _FIFO_CNT0 0x10 /* Transmit/Receive FIFO Count 16 Read */
-#define _INT_ID0 0x30 /* Interrupt Identification 8 Read */
-
-/************************************************************************
- Tx Control Register Offsets - Indexed - External - Fixed
-************************************************************************/
-#define _TX_ENBLS 0x980 /* Tx Processor Enables Register 8 Read / Write */
-#define _TXCMP1 0x988 /* Transmit Compare Value #1 8 Read / Write */
-#define _TXCMP2 0x989 /* Transmit Compare Value #2 8 Read / Write */
-#define _TXREP1B1 0x98A /* Tx Replace Value #1 - Byte 1 8 Read / Write */
-#define _TXREP1B2 0x98B /* Tx Replace Value #1 - Byte 2 8 Read / Write */
-#define _TXREP2 0x98C /* Transmit Replace Value #2 8 Read / Write */
-
-/************************************************************************
-Memory Controller Register Offsets - Indexed - External - Fixed
-************************************************************************/
-#define _RX_FIFO 0x000 /* Rx FIFO */
-#define _TX_FIFO 0x800 /* Tx FIFO */
-#define _RXF_OUTP 0x990 /* Rx FIFO OUT pointer 16 Read / Write */
-#define _RXF_INP 0x992 /* Rx FIFO IN pointer 16 Read / Write */
-#define _TXF_OUTP 0x994 /* Tx FIFO OUT pointer 8 Read / Write */
-#define _TXF_INP 0x995 /* Tx FIFO IN pointer 8 Read / Write */
-#define _TXP_CNT 0x996 /* Tx Priority Count 8 Read / Write */
-#define _TXP_PNTR 0x997 /* Tx Priority Pointer 8 Read / Write */
-
-#define PRI_PEND 0x80 /* Priority data pending (bit7, Tx pri cnt) */
-#define TXFIFO_SIZE 255 /* size of Tx FIFO */
-#define RXFIFO_SIZE 1023 /* size of Rx FIFO */
-
-/************************************************************************
-Tx Priority Buffer - Indexed - External - Fixed
-************************************************************************/
-#define _TXP_BUF 0x9C0 /* Tx Priority Buffer 32 Bytes Read / Write */
-#define TXP_SIZE 0x20 /* 32 bytes */
-
-/************************************************************************
-Channel Register Offsets - Indexed - Internal - Fixed
-************************************************************************/
-
-#define _TX_CTRL 0xFF0 /* Transmit Control 16 Write */
-#define _RX_CTRL 0xFF2 /* Receive Control 8 Write */
-#define _BAUD 0xFF4 /* Baud Rate 16 Write */
-#define _CLK_PRE 0xFF6 /* Clock Prescaler 8 Write */
-
-#define STMBREAK 0x08 /* BREAK */
-#define STMFRAME 0x04 /* framing error */
-#define STMRCVROVR 0x02 /* receiver over run error */
-#define STMPARITY 0x01 /* parity error */
-#define STMERROR (STMBREAK | STMFRAME | STMPARITY)
-#define STMBREAKH 0x800 /* BREAK */
-#define STMFRAMEH 0x400 /* framing error */
-#define STMRCVROVRH 0x200 /* receiver over run error */
-#define STMPARITYH 0x100 /* parity error */
-#define STMERRORH (STMBREAKH | STMFRAMEH | STMPARITYH)
-
-#define CTS_ACT 0x20 /* CTS input asserted */
-#define DSR_ACT 0x10 /* DSR input asserted */
-#define CD_ACT 0x08 /* CD input asserted */
-#define TXFIFOMT 0x04 /* Tx FIFO is empty */
-#define TXSHRMT 0x02 /* Tx shift register is empty */
-#define RDA 0x01 /* Rx data available */
-#define DRAINED (TXFIFOMT | TXSHRMT) /* indicates Tx is drained */
-
-#define STATMODE 0x8000 /* status mode enable bit */
-#define RXFOVERFL 0x2000 /* receive FIFO overflow */
-#define RX2MATCH 0x1000 /* receive compare byte 2 match */
-#define RX1MATCH 0x0800 /* receive compare byte 1 match */
-#define RXBREAK 0x0400 /* received BREAK */
-#define RXFRAME 0x0200 /* received framing error */
-#define RXPARITY 0x0100 /* received parity error */
-#define STATERROR (RXBREAK | RXFRAME | RXPARITY)
-
-#define CTSFC_EN 0x80 /* CTS flow control enable bit */
-#define RTSTOG_EN 0x40 /* RTS toggle enable bit */
-#define TXINT_EN 0x10 /* transmit interrupt enable */
-#define STOP2 0x08 /* enable 2 stop bits (0 = 1 stop) */
-#define PARITY_EN 0x04 /* enable parity (0 = no parity) */
-#define EVEN_PAR 0x02 /* even parity (0 = odd parity) */
-#define DATA8BIT 0x01 /* 8 bit data (0 = 7 bit data) */
-
-#define SETBREAK 0x10 /* send break condition (must clear) */
-#define LOCALLOOP 0x08 /* local loopback set for test */
-#define SET_DTR 0x04 /* assert DTR */
-#define SET_RTS 0x02 /* assert RTS */
-#define TX_ENABLE 0x01 /* enable transmitter */
-
-#define RTSFC_EN 0x40 /* RTS flow control enable */
-#define RXPROC_EN 0x20 /* receive processor enable */
-#define TRIG_NO 0x00 /* Rx FIFO trigger level 0 (no trigger) */
-#define TRIG_1 0x08 /* trigger level 1 char */
-#define TRIG_1_2 0x10 /* trigger level 1/2 */
-#define TRIG_7_8 0x18 /* trigger level 7/8 */
-#define TRIG_MASK 0x18 /* trigger level mask */
-#define SRCINT_EN 0x04 /* special Rx condition interrupt enable */
-#define RXINT_EN 0x02 /* Rx interrupt enable */
-#define MCINT_EN 0x01 /* modem change interrupt enable */
-
-#define RXF_TRIG 0x20 /* Rx FIFO trigger level interrupt */
-#define TXFIFO_MT 0x10 /* Tx FIFO empty interrupt */
-#define SRC_INT 0x08 /* special receive condition interrupt */
-#define DELTA_CD 0x04 /* CD change interrupt */
-#define DELTA_CTS 0x02 /* CTS change interrupt */
-#define DELTA_DSR 0x01 /* DSR change interrupt */
-
-#define REP1W2_EN 0x10 /* replace byte 1 with 2 bytes enable */
-#define IGN2_EN 0x08 /* ignore byte 2 enable */
-#define IGN1_EN 0x04 /* ignore byte 1 enable */
-#define COMP2_EN 0x02 /* compare byte 2 enable */
-#define COMP1_EN 0x01 /* compare byte 1 enable */
-
-#define RESET_ALL 0x80 /* reset AIOP (all channels) */
-#define TXOVERIDE 0x40 /* Transmit software off override */
-#define RESETUART 0x20 /* reset channel's UART */
-#define RESTXFCNT 0x10 /* reset channel's Tx FIFO count register */
-#define RESRXFCNT 0x08 /* reset channel's Rx FIFO count register */
-
-#define INTSTAT0 0x01 /* AIOP 0 interrupt status */
-#define INTSTAT1 0x02 /* AIOP 1 interrupt status */
-#define INTSTAT2 0x04 /* AIOP 2 interrupt status */
-#define INTSTAT3 0x08 /* AIOP 3 interrupt status */
-
-#define INTR_EN 0x08 /* allow interrupts to host */
-#define INT_STROB 0x04 /* strobe and clear interrupt line (EOI) */
-
-/**************************************************************************
- MUDBAC remapped for PCI
-**************************************************************************/
-
-#define _CFG_INT_PCI 0x40
-#define _PCI_INT_FUNC 0x3A
-
-#define PCI_STROB 0x2000 /* bit 13 of int aiop register */
-#define INTR_EN_PCI 0x0010 /* allow interrupts to host */
-
-/*
- * Definitions for Universal PCI board registers
- */
-#define _PCI_9030_INT_CTRL 0x4c /* Offsets from BAR1 */
-#define _PCI_9030_GPIO_CTRL 0x54
-#define PCI_INT_CTRL_AIOP 0x0001
-#define PCI_GPIO_CTRL_8PORT 0x4000
-#define _PCI_9030_RING_IND 0xc0 /* Offsets from BAR1 */
-
-#define CHAN3_EN 0x08 /* enable AIOP 3 */
-#define CHAN2_EN 0x04 /* enable AIOP 2 */
-#define CHAN1_EN 0x02 /* enable AIOP 1 */
-#define CHAN0_EN 0x01 /* enable AIOP 0 */
-#define FREQ_DIS 0x00
-#define FREQ_274HZ 0x60
-#define FREQ_137HZ 0x50
-#define FREQ_69HZ 0x40
-#define FREQ_34HZ 0x30
-#define FREQ_17HZ 0x20
-#define FREQ_9HZ 0x10
-#define PERIODIC_ONLY 0x80 /* only PERIODIC interrupt */
-
-#define CHANINT_EN 0x0100 /* flags to enable/disable channel ints */
-
-#define RDATASIZE 72
-#define RREGDATASIZE 52
-
-/*
- * AIOP interrupt bits for ISA/PCI boards and UPCI boards.
- */
-#define AIOP_INTR_BIT_0 0x0001
-#define AIOP_INTR_BIT_1 0x0002
-#define AIOP_INTR_BIT_2 0x0004
-#define AIOP_INTR_BIT_3 0x0008
-
-#define AIOP_INTR_BITS ( \
- AIOP_INTR_BIT_0 \
- | AIOP_INTR_BIT_1 \
- | AIOP_INTR_BIT_2 \
- | AIOP_INTR_BIT_3)
-
-#define UPCI_AIOP_INTR_BIT_0 0x0004
-#define UPCI_AIOP_INTR_BIT_1 0x0020
-#define UPCI_AIOP_INTR_BIT_2 0x0100
-#define UPCI_AIOP_INTR_BIT_3 0x0800
-
-#define UPCI_AIOP_INTR_BITS ( \
- UPCI_AIOP_INTR_BIT_0 \
- | UPCI_AIOP_INTR_BIT_1 \
- | UPCI_AIOP_INTR_BIT_2 \
- | UPCI_AIOP_INTR_BIT_3)
-
-/* Controller level information structure */
-typedef struct {
- int CtlID;
- int CtlNum;
- int BusType;
- int boardType;
- int isUPCI;
- WordIO_t PCIIO;
- WordIO_t PCIIO2;
- ByteIO_t MBaseIO;
- ByteIO_t MReg1IO;
- ByteIO_t MReg2IO;
- ByteIO_t MReg3IO;
- Byte_t MReg2;
- Byte_t MReg3;
- int NumAiop;
- int AltChanRingIndicator;
- ByteIO_t UPCIRingInd;
- WordIO_t AiopIO[AIOP_CTL_SIZE];
- ByteIO_t AiopIntChanIO[AIOP_CTL_SIZE];
- int AiopID[AIOP_CTL_SIZE];
- int AiopNumChan[AIOP_CTL_SIZE];
- Word_t *AiopIntrBits;
-} CONTROLLER_T;
-
-typedef CONTROLLER_T CONTROLLER_t;
-
-/* Channel level information structure */
-typedef struct {
- CONTROLLER_T *CtlP;
- int AiopNum;
- int ChanID;
- int ChanNum;
- int rtsToggle;
-
- ByteIO_t Cmd;
- ByteIO_t IntChan;
- ByteIO_t IntMask;
- DWordIO_t IndexAddr;
- WordIO_t IndexData;
-
- WordIO_t TxRxData;
- WordIO_t ChanStat;
- WordIO_t TxRxCount;
- ByteIO_t IntID;
-
- Word_t TxFIFO;
- Word_t TxFIFOPtrs;
- Word_t RxFIFO;
- Word_t RxFIFOPtrs;
- Word_t TxPrioCnt;
- Word_t TxPrioPtr;
- Word_t TxPrioBuf;
-
- Byte_t R[RREGDATASIZE];
-
- Byte_t BaudDiv[4];
- Byte_t TxControl[4];
- Byte_t RxControl[4];
- Byte_t TxEnables[4];
- Byte_t TxCompare[4];
- Byte_t TxReplace1[4];
- Byte_t TxReplace2[4];
-} CHANNEL_T;
-
-typedef CHANNEL_T CHANNEL_t;
-typedef CHANNEL_T *CHANPTR_T;
-
-#define InterfaceModeRS232 0x00
-#define InterfaceModeRS422 0x08
-#define InterfaceModeRS485 0x10
-#define InterfaceModeRS232T 0x18
-
-/***************************************************************************
-Function: sClrBreak
-Purpose: Stop sending a transmit BREAK signal
-Call: sClrBreak(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrBreak(ChP) \
-do { \
- (ChP)->TxControl[3] &= ~SETBREAK; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sClrDTR
-Purpose: Clr the DTR output
-Call: sClrDTR(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrDTR(ChP) \
-do { \
- (ChP)->TxControl[3] &= ~SET_DTR; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sClrRTS
-Purpose: Clr the RTS output
-Call: sClrRTS(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrRTS(ChP) \
-do { \
- if ((ChP)->rtsToggle) break; \
- (ChP)->TxControl[3] &= ~SET_RTS; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sClrTxXOFF
-Purpose: Clear any existing transmit software flow control off condition
-Call: sClrTxXOFF(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sClrTxXOFF(ChP) \
-do { \
- sOutB((ChP)->Cmd,TXOVERIDE | (Byte_t)(ChP)->ChanNum); \
- sOutB((ChP)->Cmd,(Byte_t)(ChP)->ChanNum); \
-} while (0)
-
-/***************************************************************************
-Function: sCtlNumToCtlPtr
-Purpose: Convert a controller number to controller structure pointer
-Call: sCtlNumToCtlPtr(CtlNum)
- int CtlNum; Controller number
-Return: CONTROLLER_T *: Ptr to controller structure
-*/
-#define sCtlNumToCtlPtr(CTLNUM) &sController[CTLNUM]
-
-/***************************************************************************
-Function: sControllerEOI
-Purpose: Strobe the MUDBAC's End Of Interrupt bit.
-Call: sControllerEOI(CtlP)
- CONTROLLER_T *CtlP; Ptr to controller structure
-*/
-#define sControllerEOI(CTLP) sOutB((CTLP)->MReg2IO,(CTLP)->MReg2 | INT_STROB)
-
-/***************************************************************************
-Function: sPCIControllerEOI
-Purpose: Strobe the PCI End Of Interrupt bit.
- For the UPCI boards, toggle the AIOP interrupt enable bit
- (this was taken from the Windows driver).
-Call: sPCIControllerEOI(CtlP)
- CONTROLLER_T *CtlP; Ptr to controller structure
-*/
-#define sPCIControllerEOI(CTLP) \
-do { \
- if ((CTLP)->isUPCI) { \
- Word_t w = sInW((CTLP)->PCIIO); \
- sOutW((CTLP)->PCIIO, (w ^ PCI_INT_CTRL_AIOP)); \
- sOutW((CTLP)->PCIIO, w); \
- } \
- else { \
- sOutW((CTLP)->PCIIO, PCI_STROB); \
- } \
-} while (0)
-
-/***************************************************************************
-Function: sDisAiop
-Purpose: Disable I/O access to an AIOP
-Call: sDisAiop(CltP)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int AiopNum; Number of AIOP on controller
-*/
-#define sDisAiop(CTLP,AIOPNUM) \
-do { \
- (CTLP)->MReg3 &= sBitMapClrTbl[AIOPNUM]; \
- sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \
-} while (0)
-
-/***************************************************************************
-Function: sDisCTSFlowCtl
-Purpose: Disable output flow control using CTS
-Call: sDisCTSFlowCtl(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisCTSFlowCtl(ChP) \
-do { \
- (ChP)->TxControl[2] &= ~CTSFC_EN; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sDisIXANY
-Purpose: Disable IXANY Software Flow Control
-Call: sDisIXANY(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisIXANY(ChP) \
-do { \
- (ChP)->R[0x0e] = 0x86; \
- out32((ChP)->IndexAddr,&(ChP)->R[0x0c]); \
-} while (0)
-
-/***************************************************************************
-Function: DisParity
-Purpose: Disable parity
-Call: sDisParity(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
- sDisParity(), sSetOddParity(), and sSetEvenParity().
-*/
-#define sDisParity(ChP) \
-do { \
- (ChP)->TxControl[2] &= ~PARITY_EN; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sDisRTSToggle
-Purpose: Disable RTS toggle
-Call: sDisRTSToggle(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisRTSToggle(ChP) \
-do { \
- (ChP)->TxControl[2] &= ~RTSTOG_EN; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
- (ChP)->rtsToggle = 0; \
-} while (0)
-
-/***************************************************************************
-Function: sDisRxFIFO
-Purpose: Disable Rx FIFO
-Call: sDisRxFIFO(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisRxFIFO(ChP) \
-do { \
- (ChP)->R[0x32] = 0x0a; \
- out32((ChP)->IndexAddr,&(ChP)->R[0x30]); \
-} while (0)
-
-/***************************************************************************
-Function: sDisRxStatusMode
-Purpose: Disable the Rx status mode
-Call: sDisRxStatusMode(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: This takes the channel out of the receive status mode. All
- subsequent reads of receive data using sReadRxWord() will return
- two data bytes.
-*/
-#define sDisRxStatusMode(ChP) sOutW((ChP)->ChanStat,0)
-
-/***************************************************************************
-Function: sDisTransmit
-Purpose: Disable transmit
-Call: sDisTransmit(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
- This disables movement of Tx data from the Tx FIFO into the 1 byte
- Tx buffer. Therefore there could be up to a 2 byte latency
- between the time sDisTransmit() is called and the transmit buffer
- and transmit shift register going completely empty.
-*/
-#define sDisTransmit(ChP) \
-do { \
- (ChP)->TxControl[3] &= ~TX_ENABLE; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sDisTxSoftFlowCtl
-Purpose: Disable Tx Software Flow Control
-Call: sDisTxSoftFlowCtl(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sDisTxSoftFlowCtl(ChP) \
-do { \
- (ChP)->R[0x06] = 0x8a; \
- out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
-} while (0)
-
-/***************************************************************************
-Function: sEnAiop
-Purpose: Enable I/O access to an AIOP
-Call: sEnAiop(CltP)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int AiopNum; Number of AIOP on controller
-*/
-#define sEnAiop(CTLP,AIOPNUM) \
-do { \
- (CTLP)->MReg3 |= sBitMapSetTbl[AIOPNUM]; \
- sOutB((CTLP)->MReg3IO,(CTLP)->MReg3); \
-} while (0)
-
-/***************************************************************************
-Function: sEnCTSFlowCtl
-Purpose: Enable output flow control using CTS
-Call: sEnCTSFlowCtl(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnCTSFlowCtl(ChP) \
-do { \
- (ChP)->TxControl[2] |= CTSFC_EN; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnIXANY
-Purpose: Enable IXANY Software Flow Control
-Call: sEnIXANY(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnIXANY(ChP) \
-do { \
- (ChP)->R[0x0e] = 0x21; \
- out32((ChP)->IndexAddr,&(ChP)->R[0x0c]); \
-} while (0)
-
-/***************************************************************************
-Function: EnParity
-Purpose: Enable parity
-Call: sEnParity(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
- sDisParity(), sSetOddParity(), and sSetEvenParity().
-
-Warnings: Before enabling parity odd or even parity should be chosen using
- functions sSetOddParity() or sSetEvenParity().
-*/
-#define sEnParity(ChP) \
-do { \
- (ChP)->TxControl[2] |= PARITY_EN; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnRTSToggle
-Purpose: Enable RTS toggle
-Call: sEnRTSToggle(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: This function will disable RTS flow control and clear the RTS
- line to allow operation of RTS toggle.
-*/
-#define sEnRTSToggle(ChP) \
-do { \
- (ChP)->RxControl[2] &= ~RTSFC_EN; \
- out32((ChP)->IndexAddr,(ChP)->RxControl); \
- (ChP)->TxControl[2] |= RTSTOG_EN; \
- (ChP)->TxControl[3] &= ~SET_RTS; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
- (ChP)->rtsToggle = 1; \
-} while (0)
-
-/***************************************************************************
-Function: sEnRxFIFO
-Purpose: Enable Rx FIFO
-Call: sEnRxFIFO(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnRxFIFO(ChP) \
-do { \
- (ChP)->R[0x32] = 0x08; \
- out32((ChP)->IndexAddr,&(ChP)->R[0x30]); \
-} while (0)
-
-/***************************************************************************
-Function: sEnRxProcessor
-Purpose: Enable the receive processor
-Call: sEnRxProcessor(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: This function is used to start the receive processor. When
- the channel is in the reset state the receive processor is not
- running. This is done to prevent the receive processor from
- executing invalid microcode instructions prior to the
- downloading of the microcode.
-
-Warnings: This function must be called after valid microcode has been
- downloaded to the AIOP, and it must not be called before the
- microcode has been downloaded.
-*/
-#define sEnRxProcessor(ChP) \
-do { \
- (ChP)->RxControl[2] |= RXPROC_EN; \
- out32((ChP)->IndexAddr,(ChP)->RxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnRxStatusMode
-Purpose: Enable the Rx status mode
-Call: sEnRxStatusMode(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: This places the channel in the receive status mode. All subsequent
- reads of receive data using sReadRxWord() will return a data byte
- in the low word and a status byte in the high word.
-
-*/
-#define sEnRxStatusMode(ChP) sOutW((ChP)->ChanStat,STATMODE)
-
-/***************************************************************************
-Function: sEnTransmit
-Purpose: Enable transmit
-Call: sEnTransmit(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnTransmit(ChP) \
-do { \
- (ChP)->TxControl[3] |= TX_ENABLE; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sEnTxSoftFlowCtl
-Purpose: Enable Tx Software Flow Control
-Call: sEnTxSoftFlowCtl(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sEnTxSoftFlowCtl(ChP) \
-do { \
- (ChP)->R[0x06] = 0xc5; \
- out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
-} while (0)
-
-/***************************************************************************
-Function: sGetAiopIntStatus
-Purpose: Get the AIOP interrupt status
-Call: sGetAiopIntStatus(CtlP,AiopNum)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int AiopNum; AIOP number
-Return: Byte_t: The AIOP interrupt status. Bits 0 through 7
- represent channels 0 through 7 respectively. If a
- bit is set that channel is interrupting.
-*/
-#define sGetAiopIntStatus(CTLP,AIOPNUM) sInB((CTLP)->AiopIntChanIO[AIOPNUM])
-
-/***************************************************************************
-Function: sGetAiopNumChan
-Purpose: Get the number of channels supported by an AIOP
-Call: sGetAiopNumChan(CtlP,AiopNum)
- CONTROLLER_T *CtlP; Ptr to controller structure
- int AiopNum; AIOP number
-Return: int: The number of channels supported by the AIOP
-*/
-#define sGetAiopNumChan(CTLP,AIOPNUM) (CTLP)->AiopNumChan[AIOPNUM]
-
-/***************************************************************************
-Function: sGetChanIntID
-Purpose: Get a channel's interrupt identification byte
-Call: sGetChanIntID(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: Byte_t: The channel interrupt ID. Can be any
- combination of the following flags:
- RXF_TRIG: Rx FIFO trigger level interrupt
- TXFIFO_MT: Tx FIFO empty interrupt
- SRC_INT: Special receive condition interrupt
- DELTA_CD: CD change interrupt
- DELTA_CTS: CTS change interrupt
- DELTA_DSR: DSR change interrupt
-*/
-#define sGetChanIntID(ChP) (sInB((ChP)->IntID) & (RXF_TRIG | TXFIFO_MT | SRC_INT | DELTA_CD | DELTA_CTS | DELTA_DSR))
-
-/***************************************************************************
-Function: sGetChanNum
-Purpose: Get the number of a channel within an AIOP
-Call: sGetChanNum(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: int: Channel number within AIOP, or NULLCHAN if channel does
- not exist.
-*/
-#define sGetChanNum(ChP) (ChP)->ChanNum
-
-/***************************************************************************
-Function: sGetChanStatus
-Purpose: Get the channel status
-Call: sGetChanStatus(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: Word_t: The channel status. Can be any combination of
- the following flags:
- LOW BYTE FLAGS
- CTS_ACT: CTS input asserted
- DSR_ACT: DSR input asserted
- CD_ACT: CD input asserted
- TXFIFOMT: Tx FIFO is empty
- TXSHRMT: Tx shift register is empty
- RDA: Rx data available
-
- HIGH BYTE FLAGS
- STATMODE: status mode enable bit
- RXFOVERFL: receive FIFO overflow
- RX2MATCH: receive compare byte 2 match
- RX1MATCH: receive compare byte 1 match
- RXBREAK: received BREAK
- RXFRAME: received framing error
- RXPARITY: received parity error
-Warnings: This function will clear the high byte flags in the Channel
- Status Register.
-*/
-#define sGetChanStatus(ChP) sInW((ChP)->ChanStat)
-
-/***************************************************************************
-Function: sGetChanStatusLo
-Purpose: Get the low byte only of the channel status
-Call: sGetChanStatusLo(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: Byte_t: The channel status low byte. Can be any combination
- of the following flags:
- CTS_ACT: CTS input asserted
- DSR_ACT: DSR input asserted
- CD_ACT: CD input asserted
- TXFIFOMT: Tx FIFO is empty
- TXSHRMT: Tx shift register is empty
- RDA: Rx data available
-*/
-#define sGetChanStatusLo(ChP) sInB((ByteIO_t)(ChP)->ChanStat)
-
-/**********************************************************************
- * Get RI status of channel
- * Defined as a function in rocket.c -aes
- */
-#if 0
-#define sGetChanRI(ChP) ((ChP)->CtlP->AltChanRingIndicator ? \
- (sInB((ByteIO_t)((ChP)->ChanStat+8)) & DSR_ACT) : \
- (((ChP)->CtlP->boardType == ROCKET_TYPE_PC104) ? \
- (!(sInB((ChP)->CtlP->AiopIO[3]) & sBitMapSetTbl[(ChP)->ChanNum])) : \
- 0))
-#endif
-
-/***************************************************************************
-Function: sGetControllerIntStatus
-Purpose: Get the controller interrupt status
-Call: sGetControllerIntStatus(CtlP)
- CONTROLLER_T *CtlP; Ptr to controller structure
-Return: Byte_t: The controller interrupt status in the lower 4
- bits. Bits 0 through 3 represent AIOP's 0
- through 3 respectively. If a bit is set that
- AIOP is interrupting. Bits 4 through 7 will
- always be cleared.
-*/
-#define sGetControllerIntStatus(CTLP) (sInB((CTLP)->MReg1IO) & 0x0f)
-
-/***************************************************************************
-Function: sPCIGetControllerIntStatus
-Purpose: Get the controller interrupt status
-Call: sPCIGetControllerIntStatus(CtlP)
- CONTROLLER_T *CtlP; Ptr to controller structure
-Return: unsigned char: The controller interrupt status in the lower 4
- bits and bit 4. Bits 0 through 3 represent AIOP's 0
- through 3 respectively. Bit 4 is set if the int
- was generated from periodic. If a bit is set the
- AIOP is interrupting.
-*/
-#define sPCIGetControllerIntStatus(CTLP) \
- ((CTLP)->isUPCI ? \
- (sInW((CTLP)->PCIIO2) & UPCI_AIOP_INTR_BITS) : \
- ((sInW((CTLP)->PCIIO) >> 8) & AIOP_INTR_BITS))
-
-/***************************************************************************
-
-Function: sGetRxCnt
-Purpose: Get the number of data bytes in the Rx FIFO
-Call: sGetRxCnt(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: int: The number of data bytes in the Rx FIFO.
-Comments: Byte read of count register is required to obtain Rx count.
-
-*/
-#define sGetRxCnt(ChP) sInW((ChP)->TxRxCount)
-
-/***************************************************************************
-Function: sGetTxCnt
-Purpose: Get the number of data bytes in the Tx FIFO
-Call: sGetTxCnt(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: Byte_t: The number of data bytes in the Tx FIFO.
-Comments: Byte read of count register is required to obtain Tx count.
-
-*/
-#define sGetTxCnt(ChP) sInB((ByteIO_t)(ChP)->TxRxCount)
-
-/*****************************************************************************
-Function: sGetTxRxDataIO
-Purpose: Get the I/O address of a channel's TxRx Data register
-Call: sGetTxRxDataIO(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Return: WordIO_t: I/O address of a channel's TxRx Data register
-*/
-#define sGetTxRxDataIO(ChP) (ChP)->TxRxData
-
-/***************************************************************************
-Function: sInitChanDefaults
-Purpose: Initialize a channel structure to it's default state.
-Call: sInitChanDefaults(ChP)
- CHANNEL_T *ChP; Ptr to the channel structure
-Comments: This function must be called once for every channel structure
- that exists before any other SSCI calls can be made.
-
-*/
-#define sInitChanDefaults(ChP) \
-do { \
- (ChP)->CtlP = NULLCTLPTR; \
- (ChP)->AiopNum = NULLAIOP; \
- (ChP)->ChanID = AIOPID_NULL; \
- (ChP)->ChanNum = NULLCHAN; \
-} while (0)
-
-/***************************************************************************
-Function: sResetAiopByNum
-Purpose: Reset the AIOP by number
-Call: sResetAiopByNum(CTLP,AIOPNUM)
- CONTROLLER_T CTLP; Ptr to controller structure
- AIOPNUM; AIOP index
-*/
-#define sResetAiopByNum(CTLP,AIOPNUM) \
-do { \
- sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,RESET_ALL); \
- sOutB((CTLP)->AiopIO[(AIOPNUM)]+_CMD_REG,0x0); \
-} while (0)
-
-/***************************************************************************
-Function: sSendBreak
-Purpose: Send a transmit BREAK signal
-Call: sSendBreak(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSendBreak(ChP) \
-do { \
- (ChP)->TxControl[3] |= SETBREAK; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetBaud
-Purpose: Set baud rate
-Call: sSetBaud(ChP,Divisor)
- CHANNEL_T *ChP; Ptr to channel structure
- Word_t Divisor; 16 bit baud rate divisor for channel
-*/
-#define sSetBaud(ChP,DIVISOR) \
-do { \
- (ChP)->BaudDiv[2] = (Byte_t)(DIVISOR); \
- (ChP)->BaudDiv[3] = (Byte_t)((DIVISOR) >> 8); \
- out32((ChP)->IndexAddr,(ChP)->BaudDiv); \
-} while (0)
-
-/***************************************************************************
-Function: sSetData7
-Purpose: Set data bits to 7
-Call: sSetData7(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetData7(ChP) \
-do { \
- (ChP)->TxControl[2] &= ~DATA8BIT; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetData8
-Purpose: Set data bits to 8
-Call: sSetData8(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetData8(ChP) \
-do { \
- (ChP)->TxControl[2] |= DATA8BIT; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetDTR
-Purpose: Set the DTR output
-Call: sSetDTR(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetDTR(ChP) \
-do { \
- (ChP)->TxControl[3] |= SET_DTR; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetEvenParity
-Purpose: Set even parity
-Call: sSetEvenParity(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
- sDisParity(), sSetOddParity(), and sSetEvenParity().
-
-Warnings: This function has no effect unless parity is enabled with function
- sEnParity().
-*/
-#define sSetEvenParity(ChP) \
-do { \
- (ChP)->TxControl[2] |= EVEN_PAR; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetOddParity
-Purpose: Set odd parity
-Call: sSetOddParity(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: Function sSetParity() can be used in place of functions sEnParity(),
- sDisParity(), sSetOddParity(), and sSetEvenParity().
-
-Warnings: This function has no effect unless parity is enabled with function
- sEnParity().
-*/
-#define sSetOddParity(ChP) \
-do { \
- (ChP)->TxControl[2] &= ~EVEN_PAR; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetRTS
-Purpose: Set the RTS output
-Call: sSetRTS(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetRTS(ChP) \
-do { \
- if ((ChP)->rtsToggle) break; \
- (ChP)->TxControl[3] |= SET_RTS; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetRxTrigger
-Purpose: Set the Rx FIFO trigger level
-Call: sSetRxProcessor(ChP,Level)
- CHANNEL_T *ChP; Ptr to channel structure
- Byte_t Level; Number of characters in Rx FIFO at which the
- interrupt will be generated. Can be any of the following flags:
-
- TRIG_NO: no trigger
- TRIG_1: 1 character in FIFO
- TRIG_1_2: FIFO 1/2 full
- TRIG_7_8: FIFO 7/8 full
-Comments: An interrupt will be generated when the trigger level is reached
- only if function sEnInterrupt() has been called with flag
- RXINT_EN set. The RXF_TRIG flag in the Interrupt Idenfification
- register will be set whenever the trigger level is reached
- regardless of the setting of RXINT_EN.
-
-*/
-#define sSetRxTrigger(ChP,LEVEL) \
-do { \
- (ChP)->RxControl[2] &= ~TRIG_MASK; \
- (ChP)->RxControl[2] |= LEVEL; \
- out32((ChP)->IndexAddr,(ChP)->RxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetStop1
-Purpose: Set stop bits to 1
-Call: sSetStop1(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetStop1(ChP) \
-do { \
- (ChP)->TxControl[2] &= ~STOP2; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetStop2
-Purpose: Set stop bits to 2
-Call: sSetStop2(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-*/
-#define sSetStop2(ChP) \
-do { \
- (ChP)->TxControl[2] |= STOP2; \
- out32((ChP)->IndexAddr,(ChP)->TxControl); \
-} while (0)
-
-/***************************************************************************
-Function: sSetTxXOFFChar
-Purpose: Set the Tx XOFF flow control character
-Call: sSetTxXOFFChar(ChP,Ch)
- CHANNEL_T *ChP; Ptr to channel structure
- Byte_t Ch; The value to set the Tx XOFF character to
-*/
-#define sSetTxXOFFChar(ChP,CH) \
-do { \
- (ChP)->R[0x07] = (CH); \
- out32((ChP)->IndexAddr,&(ChP)->R[0x04]); \
-} while (0)
-
-/***************************************************************************
-Function: sSetTxXONChar
-Purpose: Set the Tx XON flow control character
-Call: sSetTxXONChar(ChP,Ch)
- CHANNEL_T *ChP; Ptr to channel structure
- Byte_t Ch; The value to set the Tx XON character to
-*/
-#define sSetTxXONChar(ChP,CH) \
-do { \
- (ChP)->R[0x0b] = (CH); \
- out32((ChP)->IndexAddr,&(ChP)->R[0x08]); \
-} while (0)
-
-/***************************************************************************
-Function: sStartRxProcessor
-Purpose: Start a channel's receive processor
-Call: sStartRxProcessor(ChP)
- CHANNEL_T *ChP; Ptr to channel structure
-Comments: This function is used to start a Rx processor after it was
- stopped with sStopRxProcessor() or sStopSWInFlowCtl(). It
- will restart both the Rx processor and software input flow control.
-
-*/
-#define sStartRxProcessor(ChP) out32((ChP)->IndexAddr,&(ChP)->R[0])
-
-/***************************************************************************
-Function: sWriteTxByte
-Purpose: Write a transmit data byte to a channel.
- ByteIO_t io: Channel transmit register I/O address. This can
- be obtained with sGetTxRxDataIO().
- Byte_t Data; The transmit data byte.
-Warnings: This function writes the data byte without checking to see if
- sMaxTxSize is exceeded in the Tx FIFO.
-*/
-#define sWriteTxByte(IO,DATA) sOutB(IO,DATA)
-
-/*
- * Begin Linux specific definitions for the Rocketport driver
- *
- * This code is Copyright Theodore Ts'o, 1995-1997
- */
-
-struct r_port {
- int magic;
- struct tty_port port;
- int line;
- int flags; /* Don't yet match the ASY_ flags!! */
- unsigned int board:3;
- unsigned int aiop:2;
- unsigned int chan:3;
- CONTROLLER_t *ctlp;
- CHANNEL_t channel;
- int intmask;
- int xmit_fifo_room; /* room in xmit fifo */
- unsigned char *xmit_buf;
- int xmit_head;
- int xmit_tail;
- int xmit_cnt;
- int cd_status;
- int ignore_status_mask;
- int read_status_mask;
- int cps;
-
- struct completion close_wait; /* Not yet matching the core */
- spinlock_t slock;
- struct mutex write_mtx;
-};
-
-#define RPORT_MAGIC 0x525001
-
-#define NUM_BOARDS 8
-#define MAX_RP_PORTS (32*NUM_BOARDS)
-
-/*
- * The size of the xmit buffer is 1 page, or 4096 bytes
- */
-#define XMIT_BUF_SIZE 4096
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-/*
- * Assigned major numbers for the Comtrol Rocketport
- */
-#define TTY_ROCKET_MAJOR 46
-#define CUA_ROCKET_MAJOR 47
-
-#ifdef PCI_VENDOR_ID_RP
-#undef PCI_VENDOR_ID_RP
-#undef PCI_DEVICE_ID_RP8OCTA
-#undef PCI_DEVICE_ID_RP8INTF
-#undef PCI_DEVICE_ID_RP16INTF
-#undef PCI_DEVICE_ID_RP32INTF
-#undef PCI_DEVICE_ID_URP8OCTA
-#undef PCI_DEVICE_ID_URP8INTF
-#undef PCI_DEVICE_ID_URP16INTF
-#undef PCI_DEVICE_ID_CRP16INTF
-#undef PCI_DEVICE_ID_URP32INTF
-#endif
-
-/* Comtrol PCI Vendor ID */
-#define PCI_VENDOR_ID_RP 0x11fe
-
-/* Comtrol Device ID's */
-#define PCI_DEVICE_ID_RP32INTF 0x0001 /* Rocketport 32 port w/external I/F */
-#define PCI_DEVICE_ID_RP8INTF 0x0002 /* Rocketport 8 port w/external I/F */
-#define PCI_DEVICE_ID_RP16INTF 0x0003 /* Rocketport 16 port w/external I/F */
-#define PCI_DEVICE_ID_RP4QUAD 0x0004 /* Rocketport 4 port w/quad cable */
-#define PCI_DEVICE_ID_RP8OCTA 0x0005 /* Rocketport 8 port w/octa cable */
-#define PCI_DEVICE_ID_RP8J 0x0006 /* Rocketport 8 port w/RJ11 connectors */
-#define PCI_DEVICE_ID_RP4J 0x0007 /* Rocketport 4 port w/RJ11 connectors */
-#define PCI_DEVICE_ID_RP8SNI 0x0008 /* Rocketport 8 port w/ DB78 SNI (Siemens) connector */
-#define PCI_DEVICE_ID_RP16SNI 0x0009 /* Rocketport 16 port w/ DB78 SNI (Siemens) connector */
-#define PCI_DEVICE_ID_RPP4 0x000A /* Rocketport Plus 4 port */
-#define PCI_DEVICE_ID_RPP8 0x000B /* Rocketport Plus 8 port */
-#define PCI_DEVICE_ID_RP6M 0x000C /* RocketModem 6 port */
-#define PCI_DEVICE_ID_RP4M 0x000D /* RocketModem 4 port */
-#define PCI_DEVICE_ID_RP2_232 0x000E /* Rocketport Plus 2 port RS232 */
-#define PCI_DEVICE_ID_RP2_422 0x000F /* Rocketport Plus 2 port RS422 */
-
-/* Universal PCI boards */
-#define PCI_DEVICE_ID_URP32INTF 0x0801 /* Rocketport UPCI 32 port w/external I/F */
-#define PCI_DEVICE_ID_URP8INTF 0x0802 /* Rocketport UPCI 8 port w/external I/F */
-#define PCI_DEVICE_ID_URP16INTF 0x0803 /* Rocketport UPCI 16 port w/external I/F */
-#define PCI_DEVICE_ID_URP8OCTA 0x0805 /* Rocketport UPCI 8 port w/octa cable */
-#define PCI_DEVICE_ID_UPCI_RM3_8PORT 0x080C /* Rocketmodem III 8 port */
-#define PCI_DEVICE_ID_UPCI_RM3_4PORT 0x080D /* Rocketmodem III 4 port */
-
-/* Compact PCI device */
-#define PCI_DEVICE_ID_CRP16INTF 0x0903 /* Rocketport Compact PCI 16 port w/external I/F */
-
diff --git a/drivers/char/ser_a2232.c b/drivers/char/ser_a2232.c
deleted file mode 100644
index 9610861d1f5..00000000000
--- a/drivers/char/ser_a2232.c
+++ /dev/null
@@ -1,831 +0,0 @@
-/* drivers/char/ser_a2232.c */
-
-/* $Id: ser_a2232.c,v 0.4 2000/01/25 12:00:00 ehaase Exp $ */
-
-/* Linux serial driver for the Amiga A2232 board */
-
-/* This driver is MAINTAINED. Before applying any changes, please contact
- * the author.
- */
-
-/* Copyright (c) 2000-2001 Enver Haase <ehaase@inf.fu-berlin.de>
- * alias The A2232 driver project <A2232@gmx.net>
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-/***************************** Documentation ************************/
-/*
- * This driver is in EXPERIMENTAL state. That means I could not find
- * someone with five A2232 boards with 35 ports running at 19200 bps
- * at the same time and test the machine's behaviour.
- * However, I know that you can performance-tweak this driver (see
- * the source code).
- * One thing to consider is the time this driver consumes during the
- * Amiga's vertical blank interrupt. Everything that is to be done
- * _IS DONE_ when entering the vertical blank interrupt handler of
- * this driver.
- * However, it would be more sane to only do the job for only ONE card
- * instead of ALL cards at a time; or, more generally, to handle only
- * SOME ports instead of ALL ports at a time.
- * However, as long as no-one runs into problems I guess I shouldn't
- * change the driver as it runs fine for me :) .
- *
- * Version history of this file:
- * 0.4 Resolved licensing issues.
- * 0.3 Inclusion in the Linux/m68k tree, small fixes.
- * 0.2 Added documentation, minor typo fixes.
- * 0.1 Initial release.
- *
- * TO DO:
- * - Handle incoming BREAK events. I guess "Stevens: Advanced
- * Programming in the UNIX(R) Environment" is a good reference
- * on what is to be done.
- * - When installing as a module, don't simply 'printk' text, but
- * send it to the TTY used by the user.
- *
- * THANKS TO:
- * - Jukka Marin (65EC02 code).
- * - The other NetBSD developers on whose A2232 driver I had a
- * pretty close look. However, I didn't copy any code so it
- * is okay to put my code under the GPL and include it into
- * Linux.
- */
-/***************************** End of Documentation *****************/
-
-/***************************** Defines ******************************/
-/*
- * Enables experimental 115200 (normal) 230400 (turbo) baud rate.
- * The A2232 specification states it can only operate at speeds up to
- * 19200 bits per second, and I was not able to send a file via
- * "sz"/"rz" and a null-modem cable from one A2232 port to another
- * at 115200 bits per second.
- * However, this might work for you.
- */
-#undef A2232_SPEEDHACK
-/*
- * Default is not to use RTS/CTS so you could be talked to death.
- */
-#define A2232_SUPPRESS_RTSCTS_WARNING
-/************************* End of Defines ***************************/
-
-/***************************** Includes *****************************/
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/tty.h>
-
-#include <asm/setup.h>
-#include <asm/amigaints.h>
-#include <asm/amigahw.h>
-#include <linux/zorro.h>
-#include <asm/irq.h>
-#include <linux/mutex.h>
-
-#include <linux/delay.h>
-
-#include <linux/serial.h>
-#include <linux/generic_serial.h>
-#include <linux/tty_flip.h>
-
-#include "ser_a2232.h"
-#include "ser_a2232fw.h"
-/************************* End of Includes **************************/
-
-/***************************** Prototypes ***************************/
-/* The interrupt service routine */
-static irqreturn_t a2232_vbl_inter(int irq, void *data);
-/* Initialize the port structures */
-static void a2232_init_portstructs(void);
-/* Initialize and register TTY drivers. */
-/* returns 0 IFF successful */
-static int a2232_init_drivers(void);
-
-/* BEGIN GENERIC_SERIAL PROTOTYPES */
-static void a2232_disable_tx_interrupts(void *ptr);
-static void a2232_enable_tx_interrupts(void *ptr);
-static void a2232_disable_rx_interrupts(void *ptr);
-static void a2232_enable_rx_interrupts(void *ptr);
-static int a2232_carrier_raised(struct tty_port *port);
-static void a2232_shutdown_port(void *ptr);
-static int a2232_set_real_termios(void *ptr);
-static int a2232_chars_in_buffer(void *ptr);
-static void a2232_close(void *ptr);
-static void a2232_hungup(void *ptr);
-/* static void a2232_getserial (void *ptr, struct serial_struct *sp); */
-/* END GENERIC_SERIAL PROTOTYPES */
-
-/* Functions that the TTY driver struct expects */
-static int a2232_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg);
-static void a2232_throttle(struct tty_struct *tty);
-static void a2232_unthrottle(struct tty_struct *tty);
-static int a2232_open(struct tty_struct * tty, struct file * filp);
-/************************* End of Prototypes ************************/
-
-/***************************** Global variables *********************/
-/*---------------------------------------------------------------------------
- * Interface from generic_serial.c back here
- *--------------------------------------------------------------------------*/
-static struct real_driver a2232_real_driver = {
- a2232_disable_tx_interrupts,
- a2232_enable_tx_interrupts,
- a2232_disable_rx_interrupts,
- a2232_enable_rx_interrupts,
- a2232_shutdown_port,
- a2232_set_real_termios,
- a2232_chars_in_buffer,
- a2232_close,
- a2232_hungup,
- NULL /* a2232_getserial */
-};
-
-static void *a2232_driver_ID = &a2232_driver_ID; // Some memory address WE own.
-
-/* Ports structs */
-static struct a2232_port a2232_ports[MAX_A2232_BOARDS*NUMLINES];
-
-/* TTY driver structs */
-static struct tty_driver *a2232_driver;
-
-/* nr of cards completely (all ports) and correctly configured */
-static int nr_a2232;
-
-/* zorro_dev structs for the A2232's */
-static struct zorro_dev *zd_a2232[MAX_A2232_BOARDS];
-/***************************** End of Global variables **************/
-
-/* Helper functions */
-
-static inline volatile struct a2232memory *a2232mem(unsigned int board)
-{
- return (volatile struct a2232memory *)ZTWO_VADDR(zd_a2232[board]->resource.start);
-}
-
-static inline volatile struct a2232status *a2232stat(unsigned int board,
- unsigned int portonboard)
-{
- volatile struct a2232memory *mem = a2232mem(board);
- return &(mem->Status[portonboard]);
-}
-
-static inline void a2232_receive_char(struct a2232_port *port, int ch, int err)
-{
-/* Mostly stolen from other drivers.
- Maybe one could implement a more efficient version by not only
- transferring one character at a time.
-*/
- struct tty_struct *tty = port->gs.port.tty;
-
-#if 0
- switch(err) {
- case TTY_BREAK:
- break;
- case TTY_PARITY:
- break;
- case TTY_OVERRUN:
- break;
- case TTY_FRAME:
- break;
- }
-#endif
-
- tty_insert_flip_char(tty, ch, err);
- tty_flip_buffer_push(tty);
-}
-
-/***************************** Functions ****************************/
-/*** BEGIN OF REAL_DRIVER FUNCTIONS ***/
-
-static void a2232_disable_tx_interrupts(void *ptr)
-{
- struct a2232_port *port;
- volatile struct a2232status *stat;
- unsigned long flags;
-
- port = ptr;
- stat = a2232stat(port->which_a2232, port->which_port_on_a2232);
- stat->OutDisable = -1;
-
- /* Does this here really have to be? */
- local_irq_save(flags);
- port->gs.port.flags &= ~GS_TX_INTEN;
- local_irq_restore(flags);
-}
-
-static void a2232_enable_tx_interrupts(void *ptr)
-{
- struct a2232_port *port;
- volatile struct a2232status *stat;
- unsigned long flags;
-
- port = ptr;
- stat = a2232stat(port->which_a2232, port->which_port_on_a2232);
- stat->OutDisable = 0;
-
- /* Does this here really have to be? */
- local_irq_save(flags);
- port->gs.port.flags |= GS_TX_INTEN;
- local_irq_restore(flags);
-}
-
-static void a2232_disable_rx_interrupts(void *ptr)
-{
- struct a2232_port *port;
- port = ptr;
- port->disable_rx = -1;
-}
-
-static void a2232_enable_rx_interrupts(void *ptr)
-{
- struct a2232_port *port;
- port = ptr;
- port->disable_rx = 0;
-}
-
-static int a2232_carrier_raised(struct tty_port *port)
-{
- struct a2232_port *ap = container_of(port, struct a2232_port, gs.port);
- return ap->cd_status;
-}
-
-static void a2232_shutdown_port(void *ptr)
-{
- struct a2232_port *port;
- volatile struct a2232status *stat;
- unsigned long flags;
-
- port = ptr;
- stat = a2232stat(port->which_a2232, port->which_port_on_a2232);
-
- local_irq_save(flags);
-
- port->gs.port.flags &= ~GS_ACTIVE;
-
- if (port->gs.port.tty && port->gs.port.tty->termios->c_cflag & HUPCL) {
- /* Set DTR and RTS to Low, flush output.
- The NetBSD driver "msc.c" does it this way. */
- stat->Command = ( (stat->Command & ~A2232CMD_CMask) |
- A2232CMD_Close );
- stat->OutFlush = -1;
- stat->Setup = -1;
- }
-
- local_irq_restore(flags);
-
- /* After analyzing control flow, I think a2232_shutdown_port
- is actually the last call from the system when at application
- level someone issues a "echo Hello >>/dev/ttyY0".
- Therefore I think the MOD_DEC_USE_COUNT should be here and
- not in "a2232_close()". See the comment in "sx.c", too.
- If you run into problems, compile this driver into the
- kernel instead of compiling it as a module. */
-}
-
-static int a2232_set_real_termios(void *ptr)
-{
- unsigned int cflag, baud, chsize, stopb, parity, softflow;
- int rate;
- int a2232_param, a2232_cmd;
- unsigned long flags;
- unsigned int i;
- struct a2232_port *port = ptr;
- volatile struct a2232status *status;
- volatile struct a2232memory *mem;
-
- if (!port->gs.port.tty || !port->gs.port.tty->termios) return 0;
-
- status = a2232stat(port->which_a2232, port->which_port_on_a2232);
- mem = a2232mem(port->which_a2232);
-
- a2232_param = a2232_cmd = 0;
-
- // get baud rate
- baud = port->gs.baud;
- if (baud == 0) {
- /* speed == 0 -> drop DTR, do nothing else */
- local_irq_save(flags);
- // Clear DTR (and RTS... mhhh).
- status->Command = ( (status->Command & ~A2232CMD_CMask) |
- A2232CMD_Close );
- status->OutFlush = -1;
- status->Setup = -1;
-
- local_irq_restore(flags);
- return 0;
- }
-
- rate = A2232_BAUD_TABLE_NOAVAIL;
- for (i=0; i < A2232_BAUD_TABLE_NUM_RATES * 3; i += 3){
- if (a2232_baud_table[i] == baud){
- if (mem->Common.Crystal == A2232_TURBO) rate = a2232_baud_table[i+2];
- else rate = a2232_baud_table[i+1];
- }
- }
- if (rate == A2232_BAUD_TABLE_NOAVAIL){
- printk("a2232: Board %d Port %d unsupported baud rate: %d baud. Using another.\n",port->which_a2232,port->which_port_on_a2232,baud);
- // This is useful for both (turbo or normal) Crystal versions.
- rate = A2232PARAM_B9600;
- }
- a2232_param |= rate;
-
- cflag = port->gs.port.tty->termios->c_cflag;
-
- // get character size
- chsize = cflag & CSIZE;
- switch (chsize){
- case CS8: a2232_param |= A2232PARAM_8Bit; break;
- case CS7: a2232_param |= A2232PARAM_7Bit; break;
- case CS6: a2232_param |= A2232PARAM_6Bit; break;
- case CS5: a2232_param |= A2232PARAM_5Bit; break;
- default: printk("a2232: Board %d Port %d unsupported character size: %d. Using 8 data bits.\n",
- port->which_a2232,port->which_port_on_a2232,chsize);
- a2232_param |= A2232PARAM_8Bit; break;
- }
-
- // get number of stop bits
- stopb = cflag & CSTOPB;
- if (stopb){ // two stop bits instead of one
- printk("a2232: Board %d Port %d 2 stop bits unsupported. Using 1 stop bit.\n",
- port->which_a2232,port->which_port_on_a2232);
- }
-
- // Warn if RTS/CTS not wanted
- if (!(cflag & CRTSCTS)){
-#ifndef A2232_SUPPRESS_RTSCTS_WARNING
- printk("a2232: Board %d Port %d cannot switch off firmware-implemented RTS/CTS hardware flow control.\n",
- port->which_a2232,port->which_port_on_a2232);
-#endif
- }
-
- /* I think this is correct.
- However, IXOFF means _input_ flow control and I wonder
- if one should care about IXON _output_ flow control,
- too. If this makes problems, one should turn the A2232
- firmware XON/XOFF "SoftFlow" flow control off and use
- the conventional way of inserting START/STOP characters
- by hand in throttle()/unthrottle().
- */
- softflow = !!( port->gs.port.tty->termios->c_iflag & IXOFF );
-
- // get Parity (Enabled/Disabled? If Enabled, Odd or Even?)
- parity = cflag & (PARENB | PARODD);
- if (parity & PARENB){
- if (parity & PARODD){
- a2232_cmd |= A2232CMD_OddParity;
- }
- else{
- a2232_cmd |= A2232CMD_EvenParity;
- }
- }
- else a2232_cmd |= A2232CMD_NoParity;
-
-
- /* Hmm. Maybe an own a2232_port structure
- member would be cleaner? */
- if (cflag & CLOCAL)
- port->gs.port.flags &= ~ASYNC_CHECK_CD;
- else
- port->gs.port.flags |= ASYNC_CHECK_CD;
-
-
- /* Now we have all parameters and can go to set them: */
- local_irq_save(flags);
-
- status->Param = a2232_param | A2232PARAM_RcvBaud;
- status->Command = a2232_cmd | A2232CMD_Open | A2232CMD_Enable;
- status->SoftFlow = softflow;
- status->OutDisable = 0;
- status->Setup = -1;
-
- local_irq_restore(flags);
- return 0;
-}
-
-static int a2232_chars_in_buffer(void *ptr)
-{
- struct a2232_port *port;
- volatile struct a2232status *status;
- unsigned char ret; /* we need modulo-256 arithmetics */
- port = ptr;
- status = a2232stat(port->which_a2232, port->which_port_on_a2232);
-#if A2232_IOBUFLEN != 256
-#error "Re-Implement a2232_chars_in_buffer()!"
-#endif
- ret = (status->OutHead - status->OutTail);
- return ret;
-}
-
-static void a2232_close(void *ptr)
-{
- a2232_disable_tx_interrupts(ptr);
- a2232_disable_rx_interrupts(ptr);
- /* see the comment in a2232_shutdown_port above. */
-}
-
-static void a2232_hungup(void *ptr)
-{
- a2232_close(ptr);
-}
-/*** END OF REAL_DRIVER FUNCTIONS ***/
-
-/*** BEGIN FUNCTIONS EXPECTED BY TTY DRIVER STRUCTS ***/
-static int a2232_ioctl( struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return -ENOIOCTLCMD;
-}
-
-static void a2232_throttle(struct tty_struct *tty)
-{
-/* Throttle: System cannot take another chars: Drop RTS or
- send the STOP char or whatever.
- The A2232 firmware does RTS/CTS anyway, and XON/XOFF
- if switched on. So the only thing we can do at this
- layer here is not taking any characters out of the
- A2232 buffer any more. */
- struct a2232_port *port = tty->driver_data;
- port->throttle_input = -1;
-}
-
-static void a2232_unthrottle(struct tty_struct *tty)
-{
-/* Unthrottle: dual to "throttle()" above. */
- struct a2232_port *port = tty->driver_data;
- port->throttle_input = 0;
-}
-
-static int a2232_open(struct tty_struct * tty, struct file * filp)
-{
-/* More or less stolen from other drivers. */
- int line;
- int retval;
- struct a2232_port *port;
-
- line = tty->index;
- port = &a2232_ports[line];
-
- tty->driver_data = port;
- port->gs.port.tty = tty;
- port->gs.port.count++;
- retval = gs_init_port(&port->gs);
- if (retval) {
- port->gs.port.count--;
- return retval;
- }
- port->gs.port.flags |= GS_ACTIVE;
- retval = gs_block_til_ready(port, filp);
-
- if (retval) {
- port->gs.port.count--;
- return retval;
- }
-
- a2232_enable_rx_interrupts(port);
-
- return 0;
-}
-/*** END OF FUNCTIONS EXPECTED BY TTY DRIVER STRUCTS ***/
-
-static irqreturn_t a2232_vbl_inter(int irq, void *data)
-{
-#if A2232_IOBUFLEN != 256
-#error "Re-Implement a2232_vbl_inter()!"
-#endif
-
-struct a2232_port *port;
-volatile struct a2232memory *mem;
-volatile struct a2232status *status;
-unsigned char newhead;
-unsigned char bufpos; /* Must be unsigned char. We need the modulo-256 arithmetics */
-unsigned char ncd, ocd, ccd; /* names consistent with the NetBSD driver */
-volatile u_char *ibuf, *cbuf, *obuf;
-int ch, err, n, p;
- for (n = 0; n < nr_a2232; n++){ /* for every completely initialized A2232 board */
- mem = a2232mem(n);
- for (p = 0; p < NUMLINES; p++){ /* for every port on this board */
- err = 0;
- port = &a2232_ports[n*NUMLINES+p];
- if ( port->gs.port.flags & GS_ACTIVE ){ /* if the port is used */
-
- status = a2232stat(n,p);
-
- if (!port->disable_rx && !port->throttle_input){ /* If input is not disabled */
- newhead = status->InHead; /* 65EC02 write pointer */
- bufpos = status->InTail;
-
- /* check for input for this port */
- if (newhead != bufpos) {
- /* buffer for input chars/events */
- ibuf = mem->InBuf[p];
-
- /* data types of bytes in ibuf */
- cbuf = mem->InCtl[p];
-
- /* do for all chars */
- while (bufpos != newhead) {
- /* which type of input data? */
- switch (cbuf[bufpos]) {
- /* switch on input event (CD, BREAK, etc.) */
- case A2232INCTL_EVENT:
- switch (ibuf[bufpos++]) {
- case A2232EVENT_Break:
- /* TODO: Handle BREAK signal */
- break;
- /* A2232EVENT_CarrierOn and A2232EVENT_CarrierOff are
- handled in a separate queue and should not occur here. */
- case A2232EVENT_Sync:
- printk("A2232: 65EC02 software sent SYNC event, don't know what to do. Ignoring.");
- break;
- default:
- printk("A2232: 65EC02 software broken, unknown event type %d occurred.\n",ibuf[bufpos-1]);
- } /* event type switch */
- break;
- case A2232INCTL_CHAR:
- /* Receive incoming char */
- a2232_receive_char(port, ibuf[bufpos], err);
- bufpos++;
- break;
- default:
- printk("A2232: 65EC02 software broken, unknown data type %d occurred.\n",cbuf[bufpos]);
- bufpos++;
- } /* switch on input data type */
- } /* while there's something in the buffer */
-
- status->InTail = bufpos; /* tell 65EC02 what we've read */
-
- } /* if there was something in the buffer */
- } /* If input is not disabled */
-
- /* Now check if there's something to output */
- obuf = mem->OutBuf[p];
- bufpos = status->OutHead;
- while ( (port->gs.xmit_cnt > 0) &&
- (!port->gs.port.tty->stopped) &&
- (!port->gs.port.tty->hw_stopped) ){ /* While there are chars to transmit */
- if (((bufpos+1) & A2232_IOBUFLENMASK) != status->OutTail) { /* If the A2232 buffer is not full */
- ch = port->gs.xmit_buf[port->gs.xmit_tail]; /* get the next char to transmit */
- port->gs.xmit_tail = (port->gs.xmit_tail+1) & (SERIAL_XMIT_SIZE-1); /* modulo-addition for the gs.xmit_buf ring-buffer */
- obuf[bufpos++] = ch; /* put it into the A2232 buffer */
- port->gs.xmit_cnt--;
- }
- else{ /* If A2232 the buffer is full */
- break; /* simply stop filling it. */
- }
- }
- status->OutHead = bufpos;
-
- /* WakeUp if output buffer runs low */
- if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) {
- tty_wakeup(port->gs.port.tty);
- }
- } // if the port is used
- } // for every port on the board
-
- /* Now check the CD message queue */
- newhead = mem->Common.CDHead;
- bufpos = mem->Common.CDTail;
- if (newhead != bufpos){ /* There are CD events in queue */
- ocd = mem->Common.CDStatus; /* get old status bits */
- while (newhead != bufpos){ /* read all events */
- ncd = mem->CDBuf[bufpos++]; /* get one event */
- ccd = ncd ^ ocd; /* mask of changed lines */
- ocd = ncd; /* save new status bits */
- for(p=0; p < NUMLINES; p++){ /* for all ports */
- if (ccd & 1){ /* this one changed */
-
- struct a2232_port *port = &a2232_ports[n*7+p];
- port->cd_status = !(ncd & 1); /* ncd&1 <=> CD is now off */
-
- if (!(port->gs.port.flags & ASYNC_CHECK_CD))
- ; /* Don't report DCD changes */
- else if (port->cd_status) { // if DCD on: DCD went UP!
-
- /* Are we blocking in open?*/
- wake_up_interruptible(&port->gs.port.open_wait);
- }
- else { // if DCD off: DCD went DOWN!
- if (port->gs.port.tty)
- tty_hangup (port->gs.port.tty);
- }
-
- } // if CD changed for this port
- ccd >>= 1;
- ncd >>= 1; /* Shift bits for next line */
- } // for every port
- } // while CD events in queue
- mem->Common.CDStatus = ocd; /* save new status */
- mem->Common.CDTail = bufpos; /* remove events */
- } // if events in CD queue
-
- } // for every completely initialized A2232 board
- return IRQ_HANDLED;
-}
-
-static const struct tty_port_operations a2232_port_ops = {
- .carrier_raised = a2232_carrier_raised,
-};
-
-static void a2232_init_portstructs(void)
-{
- struct a2232_port *port;
- int i;
-
- for (i = 0; i < MAX_A2232_BOARDS*NUMLINES; i++) {
- port = a2232_ports + i;
- tty_port_init(&port->gs.port);
- port->gs.port.ops = &a2232_port_ops;
- port->which_a2232 = i/NUMLINES;
- port->which_port_on_a2232 = i%NUMLINES;
- port->disable_rx = port->throttle_input = port->cd_status = 0;
- port->gs.magic = A2232_MAGIC;
- port->gs.close_delay = HZ/2;
- port->gs.closing_wait = 30 * HZ;
- port->gs.rd = &a2232_real_driver;
- }
-}
-
-static const struct tty_operations a2232_ops = {
- .open = a2232_open,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = a2232_ioctl,
- .throttle = a2232_throttle,
- .unthrottle = a2232_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
-};
-
-static int a2232_init_drivers(void)
-{
- int error;
-
- a2232_driver = alloc_tty_driver(NUMLINES * nr_a2232);
- if (!a2232_driver)
- return -ENOMEM;
- a2232_driver->owner = THIS_MODULE;
- a2232_driver->driver_name = "commodore_a2232";
- a2232_driver->name = "ttyY";
- a2232_driver->major = A2232_NORMAL_MAJOR;
- a2232_driver->type = TTY_DRIVER_TYPE_SERIAL;
- a2232_driver->subtype = SERIAL_TYPE_NORMAL;
- a2232_driver->init_termios = tty_std_termios;
- a2232_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- a2232_driver->init_termios.c_ispeed = 9600;
- a2232_driver->init_termios.c_ospeed = 9600;
- a2232_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(a2232_driver, &a2232_ops);
- if ((error = tty_register_driver(a2232_driver))) {
- printk(KERN_ERR "A2232: Couldn't register A2232 driver, error = %d\n",
- error);
- put_tty_driver(a2232_driver);
- return 1;
- }
- return 0;
-}
-
-static int __init a2232board_init(void)
-{
- struct zorro_dev *z;
-
- unsigned int boardaddr;
- int bcount;
- short start;
- u_char *from;
- volatile u_char *to;
- volatile struct a2232memory *mem;
- int error, i;
-
-#ifdef CONFIG_SMP
- return -ENODEV; /* This driver is not SMP aware. Is there an SMP ZorroII-bus-machine? */
-#endif
-
- if (!MACH_IS_AMIGA){
- return -ENODEV;
- }
-
- printk("Commodore A2232 driver initializing.\n"); /* Say that we're alive. */
-
- z = NULL;
- nr_a2232 = 0;
- while ( (z = zorro_find_device(ZORRO_WILDCARD, z)) ){
- if ( (z->id != ZORRO_PROD_CBM_A2232_PROTOTYPE) &&
- (z->id != ZORRO_PROD_CBM_A2232) ){
- continue; // The board found was no A2232
- }
- if (!zorro_request_device(z,"A2232 driver"))
- continue;
-
- printk("Commodore A2232 found (#%d).\n",nr_a2232);
-
- zd_a2232[nr_a2232] = z;
-
- boardaddr = ZTWO_VADDR( z->resource.start );
- printk("Board is located at address 0x%x, size is 0x%x.\n", boardaddr, (unsigned int) ((z->resource.end+1) - (z->resource.start)));
-
- mem = (volatile struct a2232memory *) boardaddr;
-
- (void) mem->Enable6502Reset; /* copy the code across to the board */
- to = (u_char *)mem; from = a2232_65EC02code; bcount = sizeof(a2232_65EC02code) - 2;
- start = *(short *)from;
- from += sizeof(start);
- to += start;
- while(bcount--) *to++ = *from++;
- printk("65EC02 software uploaded to the A2232 memory.\n");
-
- mem->Common.Crystal = A2232_UNKNOWN; /* use automatic speed check */
-
- /* start 6502 running */
- (void) mem->ResetBoard;
- printk("A2232's 65EC02 CPU up and running.\n");
-
- /* wait until speed detector has finished */
- for (bcount = 0; bcount < 2000; bcount++) {
- udelay(1000);
- if (mem->Common.Crystal)
- break;
- }
- printk((mem->Common.Crystal?"A2232 oscillator crystal detected by 65EC02 software: ":"65EC02 software could not determine A2232 oscillator crystal: "));
- switch (mem->Common.Crystal){
- case A2232_UNKNOWN:
- printk("Unknown crystal.\n");
- break;
- case A2232_NORMAL:
- printk ("Normal crystal.\n");
- break;
- case A2232_TURBO:
- printk ("Turbo crystal.\n");
- break;
- default:
- printk ("0x%x. Huh?\n",mem->Common.Crystal);
- }
-
- nr_a2232++;
-
- }
-
- printk("Total: %d A2232 boards initialized.\n", nr_a2232); /* Some status report if no card was found */
-
- a2232_init_portstructs();
-
- /*
- a2232_init_drivers also registers the drivers. Must be here because all boards
- have to be detected first.
- */
- if (a2232_init_drivers()) return -ENODEV; // maybe we should use a different -Exxx?
-
- error = request_irq(IRQ_AMIGA_VERTB, a2232_vbl_inter, 0,
- "A2232 serial VBL", a2232_driver_ID);
- if (error) {
- for (i = 0; i < nr_a2232; i++)
- zorro_release_device(zd_a2232[i]);
- tty_unregister_driver(a2232_driver);
- put_tty_driver(a2232_driver);
- }
- return error;
-}
-
-static void __exit a2232board_exit(void)
-{
- int i;
-
- for (i = 0; i < nr_a2232; i++) {
- zorro_release_device(zd_a2232[i]);
- }
-
- tty_unregister_driver(a2232_driver);
- put_tty_driver(a2232_driver);
- free_irq(IRQ_AMIGA_VERTB, a2232_driver_ID);
-}
-
-module_init(a2232board_init);
-module_exit(a2232board_exit);
-
-MODULE_AUTHOR("Enver Haase");
-MODULE_DESCRIPTION("Amiga A2232 multi-serial board driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/ser_a2232.h b/drivers/char/ser_a2232.h
deleted file mode 100644
index bc09eb9e118..00000000000
--- a/drivers/char/ser_a2232.h
+++ /dev/null
@@ -1,202 +0,0 @@
-/* drivers/char/ser_a2232.h */
-
-/* $Id: ser_a2232.h,v 0.4 2000/01/25 12:00:00 ehaase Exp $ */
-
-/* Linux serial driver for the Amiga A2232 board */
-
-/* This driver is MAINTAINED. Before applying any changes, please contact
- * the author.
- */
-
-/* Copyright (c) 2000-2001 Enver Haase <ehaase@inf.fu-berlin.de>
- * alias The A2232 driver project <A2232@gmx.net>
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#ifndef _SER_A2232_H_
-#define _SER_A2232_H_
-
-/*
- How many boards are to be supported at maximum;
- "up to five A2232 Multiport Serial Cards may be installed in a
- single Amiga 2000" states the A2232 User's Guide. If you have
- more slots available, you might want to change the value below.
-*/
-#define MAX_A2232_BOARDS 5
-
-#ifndef A2232_NORMAL_MAJOR
-/* This allows overriding on the compiler commandline, or in a "major.h"
- include or something like that */
-#define A2232_NORMAL_MAJOR 224 /* /dev/ttyY* */
-#define A2232_CALLOUT_MAJOR 225 /* /dev/cuy* */
-#endif
-
-/* Some magic is always good - Who knows :) */
-#define A2232_MAGIC 0x000a2232
-
-/* A2232 port structure to keep track of the
- status of every single line used */
-struct a2232_port{
- struct gs_port gs;
- unsigned int which_a2232;
- unsigned int which_port_on_a2232;
- short disable_rx;
- short throttle_input;
- short cd_status;
-};
-
-#define NUMLINES 7 /* number of lines per board */
-#define A2232_IOBUFLEN 256 /* number of bytes per buffer */
-#define A2232_IOBUFLENMASK 0xff /* mask for maximum number of bytes */
-
-
-#define A2232_UNKNOWN 0 /* crystal not known */
-#define A2232_NORMAL 1 /* normal A2232 (1.8432 MHz oscillator) */
-#define A2232_TURBO 2 /* turbo A2232 (3.6864 MHz oscillator) */
-
-
-struct a2232common {
- char Crystal; /* normal (1) or turbo (2) board? */
- u_char Pad_a;
- u_char TimerH; /* timer value after speed check */
- u_char TimerL;
- u_char CDHead; /* head pointer for CD message queue */
- u_char CDTail; /* tail pointer for CD message queue */
- u_char CDStatus;
- u_char Pad_b;
-};
-
-struct a2232status {
- u_char InHead; /* input queue head */
- u_char InTail; /* input queue tail */
- u_char OutDisable; /* disables output */
- u_char OutHead; /* output queue head */
- u_char OutTail; /* output queue tail */
- u_char OutCtrl; /* soft flow control character to send */
- u_char OutFlush; /* flushes output buffer */
- u_char Setup; /* causes reconfiguration */
- u_char Param; /* parameter byte - see A2232PARAM */
- u_char Command; /* command byte - see A2232CMD */
- u_char SoftFlow; /* enables xon/xoff flow control */
- /* private 65EC02 fields: */
- u_char XonOff; /* stores XON/XOFF enable/disable */
-};
-
-#define A2232_MEMPAD1 \
- (0x0200 - NUMLINES * sizeof(struct a2232status) - \
- sizeof(struct a2232common))
-#define A2232_MEMPAD2 (0x2000 - NUMLINES * A2232_IOBUFLEN - A2232_IOBUFLEN)
-
-struct a2232memory {
- struct a2232status Status[NUMLINES]; /* 0x0000-0x006f status areas */
- struct a2232common Common; /* 0x0070-0x0077 common flags */
- u_char Dummy1[A2232_MEMPAD1]; /* 0x00XX-0x01ff */
- u_char OutBuf[NUMLINES][A2232_IOBUFLEN];/* 0x0200-0x08ff output bufs */
- u_char InBuf[NUMLINES][A2232_IOBUFLEN]; /* 0x0900-0x0fff input bufs */
- u_char InCtl[NUMLINES][A2232_IOBUFLEN]; /* 0x1000-0x16ff control data */
- u_char CDBuf[A2232_IOBUFLEN]; /* 0x1700-0x17ff CD event buffer */
- u_char Dummy2[A2232_MEMPAD2]; /* 0x1800-0x2fff */
- u_char Code[0x1000]; /* 0x3000-0x3fff code area */
- u_short InterruptAck; /* 0x4000 intr ack */
- u_char Dummy3[0x3ffe]; /* 0x4002-0x7fff */
- u_short Enable6502Reset; /* 0x8000 Stop board, */
- /* 6502 RESET line held low */
- u_char Dummy4[0x3ffe]; /* 0x8002-0xbfff */
- u_short ResetBoard; /* 0xc000 reset board & run, */
- /* 6502 RESET line held high */
-};
-
-#undef A2232_MEMPAD1
-#undef A2232_MEMPAD2
-
-#define A2232INCTL_CHAR 0 /* corresponding byte in InBuf is a character */
-#define A2232INCTL_EVENT 1 /* corresponding byte in InBuf is an event */
-
-#define A2232EVENT_Break 1 /* break set */
-#define A2232EVENT_CarrierOn 2 /* carrier raised */
-#define A2232EVENT_CarrierOff 3 /* carrier dropped */
-#define A2232EVENT_Sync 4 /* don't know, defined in 2232.ax */
-
-#define A2232CMD_Enable 0x1 /* enable/DTR bit */
-#define A2232CMD_Close 0x2 /* close the device */
-#define A2232CMD_Open 0xb /* open the device */
-#define A2232CMD_CMask 0xf /* command mask */
-#define A2232CMD_RTSOff 0x0 /* turn off RTS */
-#define A2232CMD_RTSOn 0x8 /* turn on RTS */
-#define A2232CMD_Break 0xd /* transmit a break */
-#define A2232CMD_RTSMask 0xc /* mask for RTS stuff */
-#define A2232CMD_NoParity 0x00 /* don't use parity */
-#define A2232CMD_OddParity 0x20 /* odd parity */
-#define A2232CMD_EvenParity 0x60 /* even parity */
-#define A2232CMD_ParityMask 0xe0 /* parity mask */
-
-#define A2232PARAM_B115200 0x0 /* baud rates */
-#define A2232PARAM_B50 0x1
-#define A2232PARAM_B75 0x2
-#define A2232PARAM_B110 0x3
-#define A2232PARAM_B134 0x4
-#define A2232PARAM_B150 0x5
-#define A2232PARAM_B300 0x6
-#define A2232PARAM_B600 0x7
-#define A2232PARAM_B1200 0x8
-#define A2232PARAM_B1800 0x9
-#define A2232PARAM_B2400 0xa
-#define A2232PARAM_B3600 0xb
-#define A2232PARAM_B4800 0xc
-#define A2232PARAM_B7200 0xd
-#define A2232PARAM_B9600 0xe
-#define A2232PARAM_B19200 0xf
-#define A2232PARAM_BaudMask 0xf /* baud rate mask */
-#define A2232PARAM_RcvBaud 0x10 /* enable receive baud rate */
-#define A2232PARAM_8Bit 0x00 /* numbers of bits */
-#define A2232PARAM_7Bit 0x20
-#define A2232PARAM_6Bit 0x40
-#define A2232PARAM_5Bit 0x60
-#define A2232PARAM_BitMask 0x60 /* numbers of bits mask */
-
-
-/* Standard speeds tables, -1 means unavailable, -2 means 0 baud: switch off line */
-#define A2232_BAUD_TABLE_NOAVAIL -1
-#define A2232_BAUD_TABLE_NUM_RATES (18)
-static int a2232_baud_table[A2232_BAUD_TABLE_NUM_RATES*3] = {
- //Baud //Normal //Turbo
- 50, A2232PARAM_B50, A2232_BAUD_TABLE_NOAVAIL,
- 75, A2232PARAM_B75, A2232_BAUD_TABLE_NOAVAIL,
- 110, A2232PARAM_B110, A2232_BAUD_TABLE_NOAVAIL,
- 134, A2232PARAM_B134, A2232_BAUD_TABLE_NOAVAIL,
- 150, A2232PARAM_B150, A2232PARAM_B75,
- 200, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL,
- 300, A2232PARAM_B300, A2232PARAM_B150,
- 600, A2232PARAM_B600, A2232PARAM_B300,
- 1200, A2232PARAM_B1200, A2232PARAM_B600,
- 1800, A2232PARAM_B1800, A2232_BAUD_TABLE_NOAVAIL,
- 2400, A2232PARAM_B2400, A2232PARAM_B1200,
- 4800, A2232PARAM_B4800, A2232PARAM_B2400,
- 9600, A2232PARAM_B9600, A2232PARAM_B4800,
- 19200, A2232PARAM_B19200, A2232PARAM_B9600,
- 38400, A2232_BAUD_TABLE_NOAVAIL, A2232PARAM_B19200,
- 57600, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL,
-#ifdef A2232_SPEEDHACK
- 115200, A2232PARAM_B115200, A2232_BAUD_TABLE_NOAVAIL,
- 230400, A2232_BAUD_TABLE_NOAVAIL, A2232PARAM_B115200
-#else
- 115200, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL,
- 230400, A2232_BAUD_TABLE_NOAVAIL, A2232_BAUD_TABLE_NOAVAIL
-#endif
-};
-#endif
diff --git a/drivers/char/ser_a2232fw.ax b/drivers/char/ser_a2232fw.ax
deleted file mode 100644
index 73643803276..00000000000
--- a/drivers/char/ser_a2232fw.ax
+++ /dev/null
@@ -1,529 +0,0 @@
-;.lib "axm"
-;
-;begin
-;title "A2232 serial board driver"
-;
-;set modules "2232"
-;set executable "2232.bin"
-;
-;;;;set nolink
-;
-;set temporary directory "t:"
-;
-;set assembly options "-m6502 -l60:t:list"
-;set link options "bin"; loadadr"
-;;;bin2c 2232.bin msc6502.h msc6502code
-;end
-;
-;
-; ### Commodore A2232 serial board driver for NetBSD by JM v1.3 ###
-;
-; - Created 950501 by JM -
-;
-;
-; Serial board driver software.
-;
-;
-% Copyright (c) 1995 Jukka Marin <jmarin@jmp.fi>.
-% All rights reserved.
-%
-% Redistribution and use in source and binary forms, with or without
-% modification, are permitted provided that the following conditions
-% are met:
-% 1. Redistributions of source code must retain the above copyright
-% notice, and the entire permission notice in its entirety,
-% including the disclaimer of warranties.
-% 2. Redistributions in binary form must reproduce the above copyright
-% notice, this list of conditions and the following disclaimer in the
-% documentation and/or other materials provided with the distribution.
-% 3. The name of the author may not be used to endorse or promote
-% products derived from this software without specific prior
-% written permission.
-%
-% ALTERNATIVELY, this product may be distributed under the terms of
-% the GNU General Public License, in which case the provisions of the
-% GPL are required INSTEAD OF the above restrictions. (This clause is
-% necessary due to a potential bad interaction between the GPL and
-% the restrictions contained in a BSD-style copyright.)
-%
-% THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESS OR IMPLIED
-% WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-% OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-% DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
-% INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-% (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-% SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-% HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
-% STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
-% OF THE POSSIBILITY OF SUCH DAMAGE.
-;
-;
-; Bugs:
-;
-; - Can't send a break yet
-;
-;
-;
-; Edited:
-;
-; - 950501 by JM -> v0.1 - Created this file.
-; - 951029 by JM -> v1.3 - Carrier Detect events now queued in a separate
-; queue.
-;
-;
-
-
-CODE equ $3800 ; start address for program code
-
-
-CTL_CHAR equ $00 ; byte in ibuf is a character
-CTL_EVENT equ $01 ; byte in ibuf is an event
-
-EVENT_BREAK equ $01
-EVENT_CDON equ $02
-EVENT_CDOFF equ $03
-EVENT_SYNC equ $04
-
-XON equ $11
-XOFF equ $13
-
-
-VARBASE macro *starting_address ; was VARINIT
-_varbase set \1
- endm
-
-VARDEF macro *name space_needs
-\1 equ _varbase
-_varbase set _varbase+\2
- endm
-
-
-stz macro * address
- db $64,\1
- endm
-
-stzax macro * address
- db $9e,<\1,>\1
- endm
-
-
-biti macro * immediate value
- db $89,\1
- endm
-
-smb0 macro * address
- db $87,\1
- endm
-smb1 macro * address
- db $97,\1
- endm
-smb2 macro * address
- db $a7,\1
- endm
-smb3 macro * address
- db $b7,\1
- endm
-smb4 macro * address
- db $c7,\1
- endm
-smb5 macro * address
- db $d7,\1
- endm
-smb6 macro * address
- db $e7,\1
- endm
-smb7 macro * address
- db $f7,\1
- endm
-
-
-
-;-----------------------------------------------------------------------;
-; ;
-; stuff common for all ports, non-critical (run once / loop) ;
-; ;
-DO_SLOW macro * port_number ;
- .local ; ;
- lda CIA+C_PA ; check all CD inputs ;
- cmp CommonCDo ; changed from previous accptd? ;
- beq =over ; nope, do nothing else here ;
- ; ;
- cmp CommonCDb ; bouncing? ;
- beq =nobounce ; nope -> ;
- ; ;
- sta CommonCDb ; save current state ;
- lda #64 ; reinitialize counter ;
- sta CommonCDc ; ;
- jmp =over ; skip CD save ;
- ; ;
-=nobounce dec CommonCDc ; no, decrement bounce counter ;
- bpl =over ; not done yet, so skip CD save ;
- ; ;
-=saveCD ldx CDHead ; get write index ;
- sta cdbuf,x ; save status in buffer ;
- inx ; ;
- cpx CDTail ; buffer full? ;
- .if ne ; no: preserve status: ;
- stx CDHead ; update index in RAM ;
- sta CommonCDo ; save state for the next check ;
- .end ; ;
-=over .end local ;
- endm ;
- ;
-;-----------------------------------------------------------------------;
-
-
-; port specific stuff (no data transfer)
-
-DO_PORT macro * port_number
- .local ; ;
- lda SetUp\1 ; reconfiguration request? ;
- .if ne ; yes: ;
- lda SoftFlow\1 ; get XON/XOFF flag ;
- sta XonOff\1 ; save it ;
- lda Param\1 ; get parameter ;
- ora #%00010000 ; use baud generator for Rx ;
- sta ACIA\1+A_CTRL ; store in control register ;
- stz OutDisable\1 ; enable transmit output ;
- stz SetUp\1 ; no reconfiguration no more ;
- .end ; ;
- ; ;
- lda InHead\1 ; get write index ;
- sbc InTail\1 ; buffer full soon? ;
- cmp #200 ; 200 chars or more in buffer? ;
- lda Command\1 ; get Command reg value ;
- and #%11110011 ; turn RTS OFF by default ;
- .if cc ; still room in buffer: ;
- ora #%00001000 ; turn RTS ON ;
- .end ; ;
- sta ACIA\1+A_CMD ; set/clear RTS ;
- ; ;
- lda OutFlush\1 ; request to flush output buffer;
- .if ne ; yessh! ;
- lda OutHead\1 ; get head ;
- sta OutTail\1 ; save as tail ;
- stz OutDisable\1 ; enable transmit output ;
- stz OutFlush\1 ; clear request ;
- .end
- .end local
- endm
-
-
-DO_DATA macro * port number
- .local
- lda ACIA\1+A_SR ; read ACIA status register ;
- biti [1<<3] ; something received? ;
- .if ne ; yes: ;
- biti [1<<1] ; framing error? ;
- .if ne ; yes: ;
- lda ACIA\1+A_DATA ; read received character ;
- bne =SEND ; not break -> ignore it ;
- ldx InHead\1 ; get write pointer ;
- lda #CTL_EVENT ; get type of byte ;
- sta ictl\1,x ; save it in InCtl buffer ;
- lda #EVENT_BREAK ; event code ;
- sta ibuf\1,x ; save it as well ;
- inx ; ;
- cpx InTail\1 ; still room in buffer? ;
- .if ne ; absolutely: ;
- stx InHead\1 ; update index in memory ;
- .end ; ;
- jmp =SEND ; go check if anything to send ;
- .end ; ;
- ; normal char received: ;
- ldx InHead\1 ; get write index ;
- lda ACIA\1+A_DATA ; read received character ;
- sta ibuf\1,x ; save char in buffer ;
- stzax ictl\1 ; set type to CTL_CHAR ;
- inx ; ;
- cpx InTail\1 ; buffer full? ;
- .if ne ; no: preserve character: ;
- stx InHead\1 ; update index in RAM ;
- .end ; ;
- and #$7f ; mask off parity if any ;
- cmp #XOFF ; XOFF from remote host? ;
- .if eq ; yes: ;
- lda XonOff\1 ; if XON/XOFF handshaking.. ;
- sta OutDisable\1 ; ..disable transmitter ;
- .end ; ;
- .end ; ;
- ; ;
- ; BUFFER FULL CHECK WAS HERE ;
- ; ;
-=SEND lda ACIA\1+A_SR ; transmit register empty? ;
- and #[1<<4] ; ;
- .if ne ; yes: ;
- ldx OutCtrl\1 ; sending out XON/XOFF? ;
- .if ne ; yes: ;
- lda CIA+C_PB ; check CTS signal ;
- and #[1<<\1] ; (for this port only) ;
- bne =DONE ; not allowed to send -> done ;
- stx ACIA\1+A_DATA ; transmit control char ;
- stz OutCtrl\1 ; clear flag ;
- jmp =DONE ; and we're done ;
- .end ; ;
- ; ;
- ldx OutTail\1 ; anything to transmit? ;
- cpx OutHead\1 ; ;
- .if ne ; yes: ;
- lda OutDisable\1 ; allowed to transmit? ;
- .if eq ; yes: ;
- lda CIA+C_PB ; check CTS signal ;
- and #[1<<\1] ; (for this port only) ;
- bne =DONE ; not allowed to send -> done ;
- lda obuf\1,x ; get a char from buffer ;
- sta ACIA\1+A_DATA ; send it away ;
- inc OutTail\1 ; update read index ;
- .end ; ;
- .end ; ;
- .end ; ;
-=DONE .end local
- endm
-
-
-
-PORTVAR macro * port number
- VARDEF InHead\1 1
- VARDEF InTail\1 1
- VARDEF OutDisable\1 1
- VARDEF OutHead\1 1
- VARDEF OutTail\1 1
- VARDEF OutCtrl\1 1
- VARDEF OutFlush\1 1
- VARDEF SetUp\1 1
- VARDEF Param\1 1
- VARDEF Command\1 1
- VARDEF SoftFlow\1 1
- ; private:
- VARDEF XonOff\1 1
- endm
-
-
- VARBASE 0 ; start variables at address $0000
- PORTVAR 0 ; define variables for port 0
- PORTVAR 1 ; define variables for port 1
- PORTVAR 2 ; define variables for port 2
- PORTVAR 3 ; define variables for port 3
- PORTVAR 4 ; define variables for port 4
- PORTVAR 5 ; define variables for port 5
- PORTVAR 6 ; define variables for port 6
-
-
-
- VARDEF Crystal 1 ; 0 = unknown, 1 = normal, 2 = turbo
- VARDEF Pad_a 1
- VARDEF TimerH 1
- VARDEF TimerL 1
- VARDEF CDHead 1
- VARDEF CDTail 1
- VARDEF CDStatus 1
- VARDEF Pad_b 1
-
- VARDEF CommonCDo 1 ; for carrier detect optimization
- VARDEF CommonCDc 1 ; for carrier detect debouncing
- VARDEF CommonCDb 1 ; for carrier detect debouncing
-
-
- VARBASE $0200
- VARDEF obuf0 256 ; output data (characters only)
- VARDEF obuf1 256
- VARDEF obuf2 256
- VARDEF obuf3 256
- VARDEF obuf4 256
- VARDEF obuf5 256
- VARDEF obuf6 256
-
- VARDEF ibuf0 256 ; input data (characters, events etc - see ictl)
- VARDEF ibuf1 256
- VARDEF ibuf2 256
- VARDEF ibuf3 256
- VARDEF ibuf4 256
- VARDEF ibuf5 256
- VARDEF ibuf6 256
-
- VARDEF ictl0 256 ; input control information (type of data in ibuf)
- VARDEF ictl1 256
- VARDEF ictl2 256
- VARDEF ictl3 256
- VARDEF ictl4 256
- VARDEF ictl5 256
- VARDEF ictl6 256
-
- VARDEF cdbuf 256 ; CD event queue
-
-
-ACIA0 equ $4400
-ACIA1 equ $4c00
-ACIA2 equ $5400
-ACIA3 equ $5c00
-ACIA4 equ $6400
-ACIA5 equ $6c00
-ACIA6 equ $7400
-
-A_DATA equ $00
-A_SR equ $02
-A_CMD equ $04
-A_CTRL equ $06
-; 00 write transmit data read received data
-; 02 reset ACIA read status register
-; 04 write command register read command register
-; 06 write control register read control register
-
-CIA equ $7c00 ; 8520 CIA
-C_PA equ $00 ; port A data register
-C_PB equ $02 ; port B data register
-C_DDRA equ $04 ; data direction register for port A
-C_DDRB equ $06 ; data direction register for port B
-C_TAL equ $08 ; timer A
-C_TAH equ $0a
-C_TBL equ $0c ; timer B
-C_TBH equ $0e
-C_TODL equ $10 ; TOD LSB
-C_TODM equ $12 ; TOD middle byte
-C_TODH equ $14 ; TOD MSB
-C_DATA equ $18 ; serial data register
-C_INTCTRL equ $1a ; interrupt control register
-C_CTRLA equ $1c ; control register A
-C_CTRLB equ $1e ; control register B
-
-
-
-
-
- section main,code,CODE-2
-
- db >CODE,<CODE
-
-;-----------------------------------------------------------------------;
-; here's the initialization code: ;
-; ;
-R_RESET ldx #$ff ;
- txs ; initialize stack pointer ;
- cld ; in case a 6502 is used... ;
- ldx #0 ; ;
- lda #0 ; ;
- ldy #Crystal ; this many bytes to clear ;
-clr_loop sta 0,x ; clear zero page variables ;
- inx ; ;
- dey ; ;
- bne clr_loop ; ;
- ; ;
- stz CommonCDo ; force CD test at boot ;
- stz CommonCDb ; ;
- stz CDHead ; clear queue ;
- stz CDTail ; ;
- ; ;
- lda #0 ; ;
- sta Pad_a ; ;
- lda #170 ; test cmp ;
- cmp #100 ; ;
- .if cs ; ;
- inc Pad_a ; C was set ;
- .end ; ;
- ;
-;-----------------------------------------------------------------------;
-; Speed check ;
-;-----------------------------------------------------------------------;
- ;
- lda Crystal ; speed already set? ;
- beq DoSpeedy ; ;
- jmp LOOP ; yes, skip speed test ;
- ; ;
-DoSpeedy lda #%10011000 ; 8N1, 1200/2400 bps ;
- sta ACIA0+A_CTRL ; ;
- lda #%00001011 ; enable DTR ;
- sta ACIA0+A_CMD ; ;
- lda ACIA0+A_SR ; read status register ;
- ; ;
- lda #%10000000 ; disable all ints (unnecessary);
- sta CIA+C_INTCTRL ; ;
- lda #255 ; program the timer ;
- sta CIA+C_TAL ; ;
- sta CIA+C_TAH ; ;
- ; ;
- ldx #0 ; ;
- stx ACIA0+A_DATA ; transmit a zero ;
- nop ; ;
- nop ; ;
- lda ACIA0+A_SR ; read status ;
- nop ; ;
- nop ; ;
- stx ACIA0+A_DATA ; transmit a zero ;
-Speedy1 lda ACIA0+A_SR ; read status ;
- and #[1<<4] ; transmit data reg empty? ;
- beq Speedy1 ; not yet, wait more ;
- ; ;
- lda #%00010001 ; load & start the timer ;
- stx ACIA0+A_DATA ; transmit one more zero ;
- sta CIA+C_CTRLA ; ;
-Speedy2 lda ACIA0+A_SR ; read status ;
- and #[1<<4] ; transmit data reg empty? ;
- beq Speedy2 ; not yet, wait more ;
- stx CIA+C_CTRLA ; stop the timer ;
- ; ;
- lda CIA+C_TAL ; copy timer value for 68k ;
- sta TimerL ; ;
- lda CIA+C_TAH ; ;
- sta TimerH ; ;
- cmp #$d0 ; turbo or normal? ;
- .if cs ; ;
- lda #2 ; turbo! :-) ;
- .else ; ;
- lda #1 ; normal :-( ;
- .end ; ;
- sta Crystal ; ;
- lda #0 ; ;
- sta ACIA0+A_SR ; ;
- sta ACIA0+A_CTRL ; reset UART ;
- sta ACIA0+A_CMD ; ;
- ;
- jmp LOOP ;
- ;
-; ;
-;-----------------------------------------------------------------------;
-; ;
-; The Real Thing: ;
-; ;
-LOOP DO_SLOW ; do non-critical things ;
- jsr do_input ; check for received data
- DO_PORT 0
- jsr do_input
- DO_PORT 1
- jsr do_input
- DO_PORT 2
- jsr do_input
- DO_PORT 3
- jsr do_input
- DO_PORT 4
- jsr do_input
- DO_PORT 5
- jsr do_input
- DO_PORT 6
- jsr do_input
- jmp LOOP
-
-
-do_input DO_DATA 0
- DO_DATA 1
- DO_DATA 2
- DO_DATA 3
- DO_DATA 4
- DO_DATA 5
- DO_DATA 6
- rts
-
-
-;-----------------------------------------------------------------------;
- section vectors,data,$3ffa
- dw $d0d0
- dw R_RESET
- dw $c0ce
-;-----------------------------------------------------------------------;
-
-
-
- end
-
-
-
diff --git a/drivers/char/ser_a2232fw.h b/drivers/char/ser_a2232fw.h
deleted file mode 100644
index e09a30acfe5..00000000000
--- a/drivers/char/ser_a2232fw.h
+++ /dev/null
@@ -1,306 +0,0 @@
-/* drivers/char/ser_a2232fw.h */
-
-/* $Id: ser_a2232fw.h,v 0.4 2000/01/25 12:00:00 ehaase Exp $ */
-
-/*
- * Copyright (c) 1995 Jukka Marin <jmarin@jmp.fi>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, and the entire permission notice in its entirety,
- * including the disclaimer of warranties.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * ALTERNATIVELY, this product may be distributed under the terms of
- * the GNU Public License, in which case the provisions of the GPL are
- * required INSTEAD OF the above restrictions. (This clause is
- * necessary due to a potential bad interaction between the GPL and
- * the restrictions contained in a BSD-style copyright.)
- *
- * THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-/* This is the 65EC02 code by Jukka Marin that is executed by
- the A2232's 65EC02 processor (base address: 0x3800)
- Source file: ser_a2232fw.ax
- Version: 1.3 (951029)
- Known Bugs: Cannot send a break yet
-*/
-static unsigned char a2232_65EC02code[] = {
- 0x38, 0x00, 0xA2, 0xFF, 0x9A, 0xD8, 0xA2, 0x00,
- 0xA9, 0x00, 0xA0, 0x54, 0x95, 0x00, 0xE8, 0x88,
- 0xD0, 0xFA, 0x64, 0x5C, 0x64, 0x5E, 0x64, 0x58,
- 0x64, 0x59, 0xA9, 0x00, 0x85, 0x55, 0xA9, 0xAA,
- 0xC9, 0x64, 0x90, 0x02, 0xE6, 0x55, 0xA5, 0x54,
- 0xF0, 0x03, 0x4C, 0x92, 0x38, 0xA9, 0x98, 0x8D,
- 0x06, 0x44, 0xA9, 0x0B, 0x8D, 0x04, 0x44, 0xAD,
- 0x02, 0x44, 0xA9, 0x80, 0x8D, 0x1A, 0x7C, 0xA9,
- 0xFF, 0x8D, 0x08, 0x7C, 0x8D, 0x0A, 0x7C, 0xA2,
- 0x00, 0x8E, 0x00, 0x44, 0xEA, 0xEA, 0xAD, 0x02,
- 0x44, 0xEA, 0xEA, 0x8E, 0x00, 0x44, 0xAD, 0x02,
- 0x44, 0x29, 0x10, 0xF0, 0xF9, 0xA9, 0x11, 0x8E,
- 0x00, 0x44, 0x8D, 0x1C, 0x7C, 0xAD, 0x02, 0x44,
- 0x29, 0x10, 0xF0, 0xF9, 0x8E, 0x1C, 0x7C, 0xAD,
- 0x08, 0x7C, 0x85, 0x57, 0xAD, 0x0A, 0x7C, 0x85,
- 0x56, 0xC9, 0xD0, 0x90, 0x05, 0xA9, 0x02, 0x4C,
- 0x82, 0x38, 0xA9, 0x01, 0x85, 0x54, 0xA9, 0x00,
- 0x8D, 0x02, 0x44, 0x8D, 0x06, 0x44, 0x8D, 0x04,
- 0x44, 0x4C, 0x92, 0x38, 0xAD, 0x00, 0x7C, 0xC5,
- 0x5C, 0xF0, 0x1F, 0xC5, 0x5E, 0xF0, 0x09, 0x85,
- 0x5E, 0xA9, 0x40, 0x85, 0x5D, 0x4C, 0xB8, 0x38,
- 0xC6, 0x5D, 0x10, 0x0E, 0xA6, 0x58, 0x9D, 0x00,
- 0x17, 0xE8, 0xE4, 0x59, 0xF0, 0x04, 0x86, 0x58,
- 0x85, 0x5C, 0x20, 0x23, 0x3A, 0xA5, 0x07, 0xF0,
- 0x0F, 0xA5, 0x0A, 0x85, 0x0B, 0xA5, 0x08, 0x09,
- 0x10, 0x8D, 0x06, 0x44, 0x64, 0x02, 0x64, 0x07,
- 0xA5, 0x00, 0xE5, 0x01, 0xC9, 0xC8, 0xA5, 0x09,
- 0x29, 0xF3, 0xB0, 0x02, 0x09, 0x08, 0x8D, 0x04,
- 0x44, 0xA5, 0x06, 0xF0, 0x08, 0xA5, 0x03, 0x85,
- 0x04, 0x64, 0x02, 0x64, 0x06, 0x20, 0x23, 0x3A,
- 0xA5, 0x13, 0xF0, 0x0F, 0xA5, 0x16, 0x85, 0x17,
- 0xA5, 0x14, 0x09, 0x10, 0x8D, 0x06, 0x4C, 0x64,
- 0x0E, 0x64, 0x13, 0xA5, 0x0C, 0xE5, 0x0D, 0xC9,
- 0xC8, 0xA5, 0x15, 0x29, 0xF3, 0xB0, 0x02, 0x09,
- 0x08, 0x8D, 0x04, 0x4C, 0xA5, 0x12, 0xF0, 0x08,
- 0xA5, 0x0F, 0x85, 0x10, 0x64, 0x0E, 0x64, 0x12,
- 0x20, 0x23, 0x3A, 0xA5, 0x1F, 0xF0, 0x0F, 0xA5,
- 0x22, 0x85, 0x23, 0xA5, 0x20, 0x09, 0x10, 0x8D,
- 0x06, 0x54, 0x64, 0x1A, 0x64, 0x1F, 0xA5, 0x18,
- 0xE5, 0x19, 0xC9, 0xC8, 0xA5, 0x21, 0x29, 0xF3,
- 0xB0, 0x02, 0x09, 0x08, 0x8D, 0x04, 0x54, 0xA5,
- 0x1E, 0xF0, 0x08, 0xA5, 0x1B, 0x85, 0x1C, 0x64,
- 0x1A, 0x64, 0x1E, 0x20, 0x23, 0x3A, 0xA5, 0x2B,
- 0xF0, 0x0F, 0xA5, 0x2E, 0x85, 0x2F, 0xA5, 0x2C,
- 0x09, 0x10, 0x8D, 0x06, 0x5C, 0x64, 0x26, 0x64,
- 0x2B, 0xA5, 0x24, 0xE5, 0x25, 0xC9, 0xC8, 0xA5,
- 0x2D, 0x29, 0xF3, 0xB0, 0x02, 0x09, 0x08, 0x8D,
- 0x04, 0x5C, 0xA5, 0x2A, 0xF0, 0x08, 0xA5, 0x27,
- 0x85, 0x28, 0x64, 0x26, 0x64, 0x2A, 0x20, 0x23,
- 0x3A, 0xA5, 0x37, 0xF0, 0x0F, 0xA5, 0x3A, 0x85,
- 0x3B, 0xA5, 0x38, 0x09, 0x10, 0x8D, 0x06, 0x64,
- 0x64, 0x32, 0x64, 0x37, 0xA5, 0x30, 0xE5, 0x31,
- 0xC9, 0xC8, 0xA5, 0x39, 0x29, 0xF3, 0xB0, 0x02,
- 0x09, 0x08, 0x8D, 0x04, 0x64, 0xA5, 0x36, 0xF0,
- 0x08, 0xA5, 0x33, 0x85, 0x34, 0x64, 0x32, 0x64,
- 0x36, 0x20, 0x23, 0x3A, 0xA5, 0x43, 0xF0, 0x0F,
- 0xA5, 0x46, 0x85, 0x47, 0xA5, 0x44, 0x09, 0x10,
- 0x8D, 0x06, 0x6C, 0x64, 0x3E, 0x64, 0x43, 0xA5,
- 0x3C, 0xE5, 0x3D, 0xC9, 0xC8, 0xA5, 0x45, 0x29,
- 0xF3, 0xB0, 0x02, 0x09, 0x08, 0x8D, 0x04, 0x6C,
- 0xA5, 0x42, 0xF0, 0x08, 0xA5, 0x3F, 0x85, 0x40,
- 0x64, 0x3E, 0x64, 0x42, 0x20, 0x23, 0x3A, 0xA5,
- 0x4F, 0xF0, 0x0F, 0xA5, 0x52, 0x85, 0x53, 0xA5,
- 0x50, 0x09, 0x10, 0x8D, 0x06, 0x74, 0x64, 0x4A,
- 0x64, 0x4F, 0xA5, 0x48, 0xE5, 0x49, 0xC9, 0xC8,
- 0xA5, 0x51, 0x29, 0xF3, 0xB0, 0x02, 0x09, 0x08,
- 0x8D, 0x04, 0x74, 0xA5, 0x4E, 0xF0, 0x08, 0xA5,
- 0x4B, 0x85, 0x4C, 0x64, 0x4A, 0x64, 0x4E, 0x20,
- 0x23, 0x3A, 0x4C, 0x92, 0x38, 0xAD, 0x02, 0x44,
- 0x89, 0x08, 0xF0, 0x3B, 0x89, 0x02, 0xF0, 0x1B,
- 0xAD, 0x00, 0x44, 0xD0, 0x32, 0xA6, 0x00, 0xA9,
- 0x01, 0x9D, 0x00, 0x10, 0xA9, 0x01, 0x9D, 0x00,
- 0x09, 0xE8, 0xE4, 0x01, 0xF0, 0x02, 0x86, 0x00,
- 0x4C, 0x65, 0x3A, 0xA6, 0x00, 0xAD, 0x00, 0x44,
- 0x9D, 0x00, 0x09, 0x9E, 0x00, 0x10, 0xE8, 0xE4,
- 0x01, 0xF0, 0x02, 0x86, 0x00, 0x29, 0x7F, 0xC9,
- 0x13, 0xD0, 0x04, 0xA5, 0x0B, 0x85, 0x02, 0xAD,
- 0x02, 0x44, 0x29, 0x10, 0xF0, 0x2C, 0xA6, 0x05,
- 0xF0, 0x0F, 0xAD, 0x02, 0x7C, 0x29, 0x01, 0xD0,
- 0x21, 0x8E, 0x00, 0x44, 0x64, 0x05, 0x4C, 0x98,
- 0x3A, 0xA6, 0x04, 0xE4, 0x03, 0xF0, 0x13, 0xA5,
- 0x02, 0xD0, 0x0F, 0xAD, 0x02, 0x7C, 0x29, 0x01,
- 0xD0, 0x08, 0xBD, 0x00, 0x02, 0x8D, 0x00, 0x44,
- 0xE6, 0x04, 0xAD, 0x02, 0x4C, 0x89, 0x08, 0xF0,
- 0x3B, 0x89, 0x02, 0xF0, 0x1B, 0xAD, 0x00, 0x4C,
- 0xD0, 0x32, 0xA6, 0x0C, 0xA9, 0x01, 0x9D, 0x00,
- 0x11, 0xA9, 0x01, 0x9D, 0x00, 0x0A, 0xE8, 0xE4,
- 0x0D, 0xF0, 0x02, 0x86, 0x0C, 0x4C, 0xDA, 0x3A,
- 0xA6, 0x0C, 0xAD, 0x00, 0x4C, 0x9D, 0x00, 0x0A,
- 0x9E, 0x00, 0x11, 0xE8, 0xE4, 0x0D, 0xF0, 0x02,
- 0x86, 0x0C, 0x29, 0x7F, 0xC9, 0x13, 0xD0, 0x04,
- 0xA5, 0x17, 0x85, 0x0E, 0xAD, 0x02, 0x4C, 0x29,
- 0x10, 0xF0, 0x2C, 0xA6, 0x11, 0xF0, 0x0F, 0xAD,
- 0x02, 0x7C, 0x29, 0x02, 0xD0, 0x21, 0x8E, 0x00,
- 0x4C, 0x64, 0x11, 0x4C, 0x0D, 0x3B, 0xA6, 0x10,
- 0xE4, 0x0F, 0xF0, 0x13, 0xA5, 0x0E, 0xD0, 0x0F,
- 0xAD, 0x02, 0x7C, 0x29, 0x02, 0xD0, 0x08, 0xBD,
- 0x00, 0x03, 0x8D, 0x00, 0x4C, 0xE6, 0x10, 0xAD,
- 0x02, 0x54, 0x89, 0x08, 0xF0, 0x3B, 0x89, 0x02,
- 0xF0, 0x1B, 0xAD, 0x00, 0x54, 0xD0, 0x32, 0xA6,
- 0x18, 0xA9, 0x01, 0x9D, 0x00, 0x12, 0xA9, 0x01,
- 0x9D, 0x00, 0x0B, 0xE8, 0xE4, 0x19, 0xF0, 0x02,
- 0x86, 0x18, 0x4C, 0x4F, 0x3B, 0xA6, 0x18, 0xAD,
- 0x00, 0x54, 0x9D, 0x00, 0x0B, 0x9E, 0x00, 0x12,
- 0xE8, 0xE4, 0x19, 0xF0, 0x02, 0x86, 0x18, 0x29,
- 0x7F, 0xC9, 0x13, 0xD0, 0x04, 0xA5, 0x23, 0x85,
- 0x1A, 0xAD, 0x02, 0x54, 0x29, 0x10, 0xF0, 0x2C,
- 0xA6, 0x1D, 0xF0, 0x0F, 0xAD, 0x02, 0x7C, 0x29,
- 0x04, 0xD0, 0x21, 0x8E, 0x00, 0x54, 0x64, 0x1D,
- 0x4C, 0x82, 0x3B, 0xA6, 0x1C, 0xE4, 0x1B, 0xF0,
- 0x13, 0xA5, 0x1A, 0xD0, 0x0F, 0xAD, 0x02, 0x7C,
- 0x29, 0x04, 0xD0, 0x08, 0xBD, 0x00, 0x04, 0x8D,
- 0x00, 0x54, 0xE6, 0x1C, 0xAD, 0x02, 0x5C, 0x89,
- 0x08, 0xF0, 0x3B, 0x89, 0x02, 0xF0, 0x1B, 0xAD,
- 0x00, 0x5C, 0xD0, 0x32, 0xA6, 0x24, 0xA9, 0x01,
- 0x9D, 0x00, 0x13, 0xA9, 0x01, 0x9D, 0x00, 0x0C,
- 0xE8, 0xE4, 0x25, 0xF0, 0x02, 0x86, 0x24, 0x4C,
- 0xC4, 0x3B, 0xA6, 0x24, 0xAD, 0x00, 0x5C, 0x9D,
- 0x00, 0x0C, 0x9E, 0x00, 0x13, 0xE8, 0xE4, 0x25,
- 0xF0, 0x02, 0x86, 0x24, 0x29, 0x7F, 0xC9, 0x13,
- 0xD0, 0x04, 0xA5, 0x2F, 0x85, 0x26, 0xAD, 0x02,
- 0x5C, 0x29, 0x10, 0xF0, 0x2C, 0xA6, 0x29, 0xF0,
- 0x0F, 0xAD, 0x02, 0x7C, 0x29, 0x08, 0xD0, 0x21,
- 0x8E, 0x00, 0x5C, 0x64, 0x29, 0x4C, 0xF7, 0x3B,
- 0xA6, 0x28, 0xE4, 0x27, 0xF0, 0x13, 0xA5, 0x26,
- 0xD0, 0x0F, 0xAD, 0x02, 0x7C, 0x29, 0x08, 0xD0,
- 0x08, 0xBD, 0x00, 0x05, 0x8D, 0x00, 0x5C, 0xE6,
- 0x28, 0xAD, 0x02, 0x64, 0x89, 0x08, 0xF0, 0x3B,
- 0x89, 0x02, 0xF0, 0x1B, 0xAD, 0x00, 0x64, 0xD0,
- 0x32, 0xA6, 0x30, 0xA9, 0x01, 0x9D, 0x00, 0x14,
- 0xA9, 0x01, 0x9D, 0x00, 0x0D, 0xE8, 0xE4, 0x31,
- 0xF0, 0x02, 0x86, 0x30, 0x4C, 0x39, 0x3C, 0xA6,
- 0x30, 0xAD, 0x00, 0x64, 0x9D, 0x00, 0x0D, 0x9E,
- 0x00, 0x14, 0xE8, 0xE4, 0x31, 0xF0, 0x02, 0x86,
- 0x30, 0x29, 0x7F, 0xC9, 0x13, 0xD0, 0x04, 0xA5,
- 0x3B, 0x85, 0x32, 0xAD, 0x02, 0x64, 0x29, 0x10,
- 0xF0, 0x2C, 0xA6, 0x35, 0xF0, 0x0F, 0xAD, 0x02,
- 0x7C, 0x29, 0x10, 0xD0, 0x21, 0x8E, 0x00, 0x64,
- 0x64, 0x35, 0x4C, 0x6C, 0x3C, 0xA6, 0x34, 0xE4,
- 0x33, 0xF0, 0x13, 0xA5, 0x32, 0xD0, 0x0F, 0xAD,
- 0x02, 0x7C, 0x29, 0x10, 0xD0, 0x08, 0xBD, 0x00,
- 0x06, 0x8D, 0x00, 0x64, 0xE6, 0x34, 0xAD, 0x02,
- 0x6C, 0x89, 0x08, 0xF0, 0x3B, 0x89, 0x02, 0xF0,
- 0x1B, 0xAD, 0x00, 0x6C, 0xD0, 0x32, 0xA6, 0x3C,
- 0xA9, 0x01, 0x9D, 0x00, 0x15, 0xA9, 0x01, 0x9D,
- 0x00, 0x0E, 0xE8, 0xE4, 0x3D, 0xF0, 0x02, 0x86,
- 0x3C, 0x4C, 0xAE, 0x3C, 0xA6, 0x3C, 0xAD, 0x00,
- 0x6C, 0x9D, 0x00, 0x0E, 0x9E, 0x00, 0x15, 0xE8,
- 0xE4, 0x3D, 0xF0, 0x02, 0x86, 0x3C, 0x29, 0x7F,
- 0xC9, 0x13, 0xD0, 0x04, 0xA5, 0x47, 0x85, 0x3E,
- 0xAD, 0x02, 0x6C, 0x29, 0x10, 0xF0, 0x2C, 0xA6,
- 0x41, 0xF0, 0x0F, 0xAD, 0x02, 0x7C, 0x29, 0x20,
- 0xD0, 0x21, 0x8E, 0x00, 0x6C, 0x64, 0x41, 0x4C,
- 0xE1, 0x3C, 0xA6, 0x40, 0xE4, 0x3F, 0xF0, 0x13,
- 0xA5, 0x3E, 0xD0, 0x0F, 0xAD, 0x02, 0x7C, 0x29,
- 0x20, 0xD0, 0x08, 0xBD, 0x00, 0x07, 0x8D, 0x00,
- 0x6C, 0xE6, 0x40, 0xAD, 0x02, 0x74, 0x89, 0x08,
- 0xF0, 0x3B, 0x89, 0x02, 0xF0, 0x1B, 0xAD, 0x00,
- 0x74, 0xD0, 0x32, 0xA6, 0x48, 0xA9, 0x01, 0x9D,
- 0x00, 0x16, 0xA9, 0x01, 0x9D, 0x00, 0x0F, 0xE8,
- 0xE4, 0x49, 0xF0, 0x02, 0x86, 0x48, 0x4C, 0x23,
- 0x3D, 0xA6, 0x48, 0xAD, 0x00, 0x74, 0x9D, 0x00,
- 0x0F, 0x9E, 0x00, 0x16, 0xE8, 0xE4, 0x49, 0xF0,
- 0x02, 0x86, 0x48, 0x29, 0x7F, 0xC9, 0x13, 0xD0,
- 0x04, 0xA5, 0x53, 0x85, 0x4A, 0xAD, 0x02, 0x74,
- 0x29, 0x10, 0xF0, 0x2C, 0xA6, 0x4D, 0xF0, 0x0F,
- 0xAD, 0x02, 0x7C, 0x29, 0x40, 0xD0, 0x21, 0x8E,
- 0x00, 0x74, 0x64, 0x4D, 0x4C, 0x56, 0x3D, 0xA6,
- 0x4C, 0xE4, 0x4B, 0xF0, 0x13, 0xA5, 0x4A, 0xD0,
- 0x0F, 0xAD, 0x02, 0x7C, 0x29, 0x40, 0xD0, 0x08,
- 0xBD, 0x00, 0x08, 0x8D, 0x00, 0x74, 0xE6, 0x4C,
- 0x60, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0xFF, 0xFF, 0xFF, 0xFF, 0xD0, 0xD0, 0x00, 0x38,
- 0xCE, 0xC0,
-};
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
deleted file mode 100644
index 748c3b0ecd8..00000000000
--- a/drivers/char/serial167.c
+++ /dev/null
@@ -1,2490 +0,0 @@
-/*
- * linux/drivers/char/serial167.c
- *
- * Driver for MVME166/7 board serial ports, which are via a CD2401.
- * Based very much on cyclades.c.
- *
- * MVME166/7 work by Richard Hirst [richard@sleepie.demon.co.uk]
- *
- * ==============================================================
- *
- * static char rcsid[] =
- * "$Revision: 1.36.1.4 $$Date: 1995/03/29 06:14:14 $";
- *
- * linux/kernel/cyclades.c
- *
- * Maintained by Marcio Saito (cyclades@netcom.com) and
- * Randolph Bentson (bentson@grieg.seaslug.org)
- *
- * Much of the design and some of the code came from serial.c
- * which was copyright (C) 1991, 1992 Linus Torvalds. It was
- * extensively rewritten by Theodore Ts'o, 8/16/92 -- 9/14/92,
- * and then fixed as suggested by Michael K. Johnson 12/12/92.
- *
- * This version does not support shared irq's.
- *
- * $Log: cyclades.c,v $
- * Revision 1.36.1.4 1995/03/29 06:14:14 bentson
- * disambiguate between Cyclom-16Y and Cyclom-32Ye;
- *
- * Changes:
- *
- * 200 lines of changes record removed - RGH 11-10-95, starting work on
- * converting this to drive serial ports on mvme166 (cd2401).
- *
- * Arnaldo Carvalho de Melo <acme@conectiva.com.br> - 2000/08/25
- * - get rid of verify_area
- * - use get_user to access memory from userspace in set_threshold,
- * set_default_threshold and set_timeout
- * - don't use the panic function in serial167_init
- * - do resource release on failure on serial167_init
- * - include missing restore_flags in mvme167_serial_console_setup
- *
- * Kars de Jong <jongk@linux-m68k.org> - 2004/09/06
- * - replace bottom half handler with task queue handler
- */
-
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/tty.h>
-#include <linux/interrupt.h>
-#include <linux/serial.h>
-#include <linux/serialP.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/serial167.h>
-#include <linux/delay.h>
-#include <linux/major.h>
-#include <linux/mm.h>
-#include <linux/console.h>
-#include <linux/module.h>
-#include <linux/bitops.h>
-#include <linux/tty_flip.h>
-#include <linux/gfp.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/mvme16xhw.h>
-#include <asm/bootinfo.h>
-#include <asm/setup.h>
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <asm/uaccess.h>
-#include <linux/init.h>
-
-#define SERIAL_PARANOIA_CHECK
-#undef SERIAL_DEBUG_OPEN
-#undef SERIAL_DEBUG_THROTTLE
-#undef SERIAL_DEBUG_OTHER
-#undef SERIAL_DEBUG_IO
-#undef SERIAL_DEBUG_COUNT
-#undef SERIAL_DEBUG_DTR
-#undef CYCLOM_16Y_HACK
-#define CYCLOM_ENABLE_MONITORING
-
-#define WAKEUP_CHARS 256
-
-#define STD_COM_FLAGS (0)
-
-static struct tty_driver *cy_serial_driver;
-extern int serial_console;
-static struct cyclades_port *serial_console_info = NULL;
-static unsigned int serial_console_cflag = 0;
-u_char initial_console_speed;
-
-/* Base address of cd2401 chip on mvme166/7 */
-
-#define BASE_ADDR (0xfff45000)
-#define pcc2chip ((volatile u_char *)0xfff42000)
-#define PccSCCMICR 0x1d
-#define PccSCCTICR 0x1e
-#define PccSCCRICR 0x1f
-#define PccTPIACKR 0x25
-#define PccRPIACKR 0x27
-#define PccIMLR 0x3f
-
-/* This is the per-port data structure */
-struct cyclades_port cy_port[] = {
- /* CARD# */
- {-1}, /* ttyS0 */
- {-1}, /* ttyS1 */
- {-1}, /* ttyS2 */
- {-1}, /* ttyS3 */
-};
-
-#define NR_PORTS ARRAY_SIZE(cy_port)
-
-/*
- * This is used to look up the divisor speeds and the timeouts
- * We're normally limited to 15 distinct baud rates. The extra
- * are accessed via settings in info->flags.
- * 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
- * 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
- * HI VHI
- */
-static int baud_table[] = {
- 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
- 1800, 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200, 150000,
- 0
-};
-
-#if 0
-static char baud_co[] = { /* 25 MHz clock option table */
- /* value => 00 01 02 03 04 */
- /* divide by 8 32 128 512 2048 */
- 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x02,
- 0x02, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-static char baud_bpr[] = { /* 25 MHz baud rate period table */
- 0x00, 0xf5, 0xa3, 0x6f, 0x5c, 0x51, 0xf5, 0xa3, 0x51, 0xa3,
- 0x6d, 0x51, 0xa3, 0x51, 0xa3, 0x51, 0x36, 0x29, 0x1b, 0x15
-};
-#endif
-
-/* I think 166 brd clocks 2401 at 20MHz.... */
-
-/* These values are written directly to tcor, and >> 5 for writing to rcor */
-static u_char baud_co[] = { /* 20 MHz clock option table */
- 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x60, 0x60, 0x40,
- 0x40, 0x40, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-};
-
-/* These values written directly to tbpr/rbpr */
-static u_char baud_bpr[] = { /* 20 MHz baud rate period table */
- 0x00, 0xc0, 0x80, 0x58, 0x6c, 0x40, 0xc0, 0x81, 0x40, 0x81,
- 0x57, 0x40, 0x81, 0x40, 0x81, 0x40, 0x2b, 0x20, 0x15, 0x10
-};
-
-static u_char baud_cor4[] = { /* receive threshold */
- 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a,
- 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x08, 0x08, 0x07
-};
-
-static void shutdown(struct cyclades_port *);
-static int startup(struct cyclades_port *);
-static void cy_throttle(struct tty_struct *);
-static void cy_unthrottle(struct tty_struct *);
-static void config_setup(struct cyclades_port *);
-#ifdef CYCLOM_SHOW_STATUS
-static void show_status(int);
-#endif
-
-/*
- * I have my own version of udelay(), as it is needed when initialising
- * the chip, before the delay loop has been calibrated. Should probably
- * reference one of the vmechip2 or pccchip2 counter for an accurate
- * delay, but this wild guess will do for now.
- */
-
-void my_udelay(long us)
-{
- u_char x;
- volatile u_char *p = &x;
- int i;
-
- while (us--)
- for (i = 100; i; i--)
- x |= *p;
-}
-
-static inline int serial_paranoia_check(struct cyclades_port *info, char *name,
- const char *routine)
-{
-#ifdef SERIAL_PARANOIA_CHECK
- if (!info) {
- printk("Warning: null cyclades_port for (%s) in %s\n", name,
- routine);
- return 1;
- }
-
- if (info < &cy_port[0] || info >= &cy_port[NR_PORTS]) {
- printk("Warning: cyclades_port out of range for (%s) in %s\n",
- name, routine);
- return 1;
- }
-
- if (info->magic != CYCLADES_MAGIC) {
- printk("Warning: bad magic number for serial struct (%s) in "
- "%s\n", name, routine);
- return 1;
- }
-#endif
- return 0;
-} /* serial_paranoia_check */
-
-#if 0
-/* The following diagnostic routines allow the driver to spew
- information on the screen, even (especially!) during interrupts.
- */
-void SP(char *data)
-{
- unsigned long flags;
- local_irq_save(flags);
- printk(KERN_EMERG "%s", data);
- local_irq_restore(flags);
-}
-
-char scrn[2];
-void CP(char data)
-{
- unsigned long flags;
- local_irq_save(flags);
- scrn[0] = data;
- printk(KERN_EMERG "%c", scrn);
- local_irq_restore(flags);
-} /* CP */
-
-void CP1(int data)
-{
- (data < 10) ? CP(data + '0') : CP(data + 'A' - 10);
-} /* CP1 */
-void CP2(int data)
-{
- CP1((data >> 4) & 0x0f);
- CP1(data & 0x0f);
-} /* CP2 */
-void CP4(int data)
-{
- CP2((data >> 8) & 0xff);
- CP2(data & 0xff);
-} /* CP4 */
-void CP8(long data)
-{
- CP4((data >> 16) & 0xffff);
- CP4(data & 0xffff);
-} /* CP8 */
-#endif
-
-/* This routine waits up to 1000 micro-seconds for the previous
- command to the Cirrus chip to complete and then issues the
- new command. An error is returned if the previous command
- didn't finish within the time limit.
- */
-u_short write_cy_cmd(volatile u_char * base_addr, u_char cmd)
-{
- unsigned long flags;
- volatile int i;
-
- local_irq_save(flags);
- /* Check to see that the previous command has completed */
- for (i = 0; i < 100; i++) {
- if (base_addr[CyCCR] == 0) {
- break;
- }
- my_udelay(10L);
- }
- /* if the CCR never cleared, the previous command
- didn't finish within the "reasonable time" */
- if (i == 10) {
- local_irq_restore(flags);
- return (-1);
- }
-
- /* Issue the new command */
- base_addr[CyCCR] = cmd;
- local_irq_restore(flags);
- return (0);
-} /* write_cy_cmd */
-
-/* cy_start and cy_stop provide software output flow control as a
- function of XON/XOFF, software CTS, and other such stuff. */
-
-static void cy_stop(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- unsigned long flags;
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_stop %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_stop"))
- return;
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) (channel); /* index channel */
- base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
- local_irq_restore(flags);
-} /* cy_stop */
-
-static void cy_start(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- unsigned long flags;
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_start %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_start"))
- return;
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) (channel);
- base_addr[CyIER] |= CyTxMpty;
- local_irq_restore(flags);
-} /* cy_start */
-
-/* The real interrupt service routines are called
- whenever the card wants its hand held--chars
- received, out buffer empty, modem change, etc.
- */
-static irqreturn_t cd2401_rxerr_interrupt(int irq, void *dev_id)
-{
- struct tty_struct *tty;
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- unsigned char err, rfoc;
- int channel;
- char data;
-
- /* determine the channel and change to that context */
- channel = (u_short) (base_addr[CyLICR] >> 2);
- info = &cy_port[channel];
- info->last_active = jiffies;
-
- if ((err = base_addr[CyRISR]) & CyTIMEOUT) {
- /* This is a receive timeout interrupt, ignore it */
- base_addr[CyREOIR] = CyNOTRANS;
- return IRQ_HANDLED;
- }
-
- /* Read a byte of data if there is any - assume the error
- * is associated with this character */
-
- if ((rfoc = base_addr[CyRFOC]) != 0)
- data = base_addr[CyRDR];
- else
- data = 0;
-
- /* if there is nowhere to put the data, discard it */
- if (info->tty == 0) {
- base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
- } else { /* there is an open port for this data */
- tty = info->tty;
- if (err & info->ignore_status_mask) {
- base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
- }
- if (tty_buffer_request_room(tty, 1) != 0) {
- if (err & info->read_status_mask) {
- if (err & CyBREAK) {
- tty_insert_flip_char(tty, data,
- TTY_BREAK);
- if (info->flags & ASYNC_SAK) {
- do_SAK(tty);
- }
- } else if (err & CyFRAME) {
- tty_insert_flip_char(tty, data,
- TTY_FRAME);
- } else if (err & CyPARITY) {
- tty_insert_flip_char(tty, data,
- TTY_PARITY);
- } else if (err & CyOVERRUN) {
- tty_insert_flip_char(tty, 0,
- TTY_OVERRUN);
- /*
- If the flip buffer itself is
- overflowing, we still lose
- the next incoming character.
- */
- if (tty_buffer_request_room(tty, 1) !=
- 0) {
- tty_insert_flip_char(tty, data,
- TTY_FRAME);
- }
- /* These two conditions may imply */
- /* a normal read should be done. */
- /* else if(data & CyTIMEOUT) */
- /* else if(data & CySPECHAR) */
- } else {
- tty_insert_flip_char(tty, 0,
- TTY_NORMAL);
- }
- } else {
- tty_insert_flip_char(tty, data, TTY_NORMAL);
- }
- } else {
- /* there was a software buffer overrun
- and nothing could be done about it!!! */
- }
- }
- tty_schedule_flip(tty);
- /* end of service */
- base_addr[CyREOIR] = rfoc ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
-} /* cy_rxerr_interrupt */
-
-static irqreturn_t cd2401_modem_interrupt(int irq, void *dev_id)
-{
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- int mdm_change;
- int mdm_status;
-
- /* determine the channel and change to that context */
- channel = (u_short) (base_addr[CyLICR] >> 2);
- info = &cy_port[channel];
- info->last_active = jiffies;
-
- mdm_change = base_addr[CyMISR];
- mdm_status = base_addr[CyMSVR1];
-
- if (info->tty == 0) { /* nowhere to put the data, ignore it */
- ;
- } else {
- if ((mdm_change & CyDCD)
- && (info->flags & ASYNC_CHECK_CD)) {
- if (mdm_status & CyDCD) {
-/* CP('!'); */
- wake_up_interruptible(&info->open_wait);
- } else {
-/* CP('@'); */
- tty_hangup(info->tty);
- wake_up_interruptible(&info->open_wait);
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- }
- }
- if ((mdm_change & CyCTS)
- && (info->flags & ASYNC_CTS_FLOW)) {
- if (info->tty->stopped) {
- if (mdm_status & CyCTS) {
- /* !!! cy_start isn't used because... */
- info->tty->stopped = 0;
- base_addr[CyIER] |= CyTxMpty;
- tty_wakeup(info->tty);
- }
- } else {
- if (!(mdm_status & CyCTS)) {
- /* !!! cy_stop isn't used because... */
- info->tty->stopped = 1;
- base_addr[CyIER] &=
- ~(CyTxMpty | CyTxRdy);
- }
- }
- }
- if (mdm_status & CyDSR) {
- }
- }
- base_addr[CyMEOIR] = 0;
- return IRQ_HANDLED;
-} /* cy_modem_interrupt */
-
-static irqreturn_t cd2401_tx_interrupt(int irq, void *dev_id)
-{
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- int char_count, saved_cnt;
- int outch;
-
- /* determine the channel and change to that context */
- channel = (u_short) (base_addr[CyLICR] >> 2);
-
- /* validate the port number (as configured and open) */
- if ((channel < 0) || (NR_PORTS <= channel)) {
- base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
- base_addr[CyTEOIR] = CyNOTRANS;
- return IRQ_HANDLED;
- }
- info = &cy_port[channel];
- info->last_active = jiffies;
- if (info->tty == 0) {
- base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
- base_addr[CyTEOIR] = CyNOTRANS;
- return IRQ_HANDLED;
- }
-
- /* load the on-chip space available for outbound data */
- saved_cnt = char_count = base_addr[CyTFTC];
-
- if (info->x_char) { /* send special char */
- outch = info->x_char;
- base_addr[CyTDR] = outch;
- char_count--;
- info->x_char = 0;
- }
-
- if (info->x_break) {
- /* The Cirrus chip requires the "Embedded Transmit
- Commands" of start break, delay, and end break
- sequences to be sent. The duration of the
- break is given in TICs, which runs at HZ
- (typically 100) and the PPR runs at 200 Hz,
- so the delay is duration * 200/HZ, and thus a
- break can run from 1/100 sec to about 5/4 sec.
- Need to check these values - RGH 141095.
- */
- base_addr[CyTDR] = 0; /* start break */
- base_addr[CyTDR] = 0x81;
- base_addr[CyTDR] = 0; /* delay a bit */
- base_addr[CyTDR] = 0x82;
- base_addr[CyTDR] = info->x_break * 200 / HZ;
- base_addr[CyTDR] = 0; /* terminate break */
- base_addr[CyTDR] = 0x83;
- char_count -= 7;
- info->x_break = 0;
- }
-
- while (char_count > 0) {
- if (!info->xmit_cnt) {
- base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
- break;
- }
- if (info->xmit_buf == 0) {
- base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
- break;
- }
- if (info->tty->stopped || info->tty->hw_stopped) {
- base_addr[CyIER] &= ~(CyTxMpty | CyTxRdy);
- break;
- }
- /* Because the Embedded Transmit Commands have been
- enabled, we must check to see if the escape
- character, NULL, is being sent. If it is, we
- must ensure that there is room for it to be
- doubled in the output stream. Therefore we
- no longer advance the pointer when the character
- is fetched, but rather wait until after the check
- for a NULL output character. (This is necessary
- because there may not be room for the two chars
- needed to send a NULL.
- */
- outch = info->xmit_buf[info->xmit_tail];
- if (outch) {
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1)
- & (PAGE_SIZE - 1);
- base_addr[CyTDR] = outch;
- char_count--;
- } else {
- if (char_count > 1) {
- info->xmit_cnt--;
- info->xmit_tail = (info->xmit_tail + 1)
- & (PAGE_SIZE - 1);
- base_addr[CyTDR] = outch;
- base_addr[CyTDR] = 0;
- char_count--;
- char_count--;
- } else {
- break;
- }
- }
- }
-
- if (info->xmit_cnt < WAKEUP_CHARS)
- tty_wakeup(info->tty);
-
- base_addr[CyTEOIR] = (char_count != saved_cnt) ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
-} /* cy_tx_interrupt */
-
-static irqreturn_t cd2401_rx_interrupt(int irq, void *dev_id)
-{
- struct tty_struct *tty;
- struct cyclades_port *info;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
- char data;
- int char_count;
- int save_cnt;
-
- /* determine the channel and change to that context */
- channel = (u_short) (base_addr[CyLICR] >> 2);
- info = &cy_port[channel];
- info->last_active = jiffies;
- save_cnt = char_count = base_addr[CyRFOC];
-
- /* if there is nowhere to put the data, discard it */
- if (info->tty == 0) {
- while (char_count--) {
- data = base_addr[CyRDR];
- }
- } else { /* there is an open port for this data */
- tty = info->tty;
- /* load # characters available from the chip */
-
-#ifdef CYCLOM_ENABLE_MONITORING
- ++info->mon.int_count;
- info->mon.char_count += char_count;
- if (char_count > info->mon.char_max)
- info->mon.char_max = char_count;
- info->mon.char_last = char_count;
-#endif
- while (char_count--) {
- data = base_addr[CyRDR];
- tty_insert_flip_char(tty, data, TTY_NORMAL);
-#ifdef CYCLOM_16Y_HACK
- udelay(10L);
-#endif
- }
- tty_schedule_flip(tty);
- }
- /* end of service */
- base_addr[CyREOIR] = save_cnt ? 0 : CyNOTRANS;
- return IRQ_HANDLED;
-} /* cy_rx_interrupt */
-
-/* This is called whenever a port becomes active;
- interrupts are enabled and DTR & RTS are turned on.
- */
-static int startup(struct cyclades_port *info)
-{
- unsigned long flags;
- volatile unsigned char *base_addr = (unsigned char *)BASE_ADDR;
- int channel;
-
- if (info->flags & ASYNC_INITIALIZED) {
- return 0;
- }
-
- if (!info->type) {
- if (info->tty) {
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- }
- return 0;
- }
- if (!info->xmit_buf) {
- info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
- if (!info->xmit_buf) {
- return -ENOMEM;
- }
- }
-
- config_setup(info);
-
- channel = info->line;
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("startup channel %d\n", channel);
-#endif
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- write_cy_cmd(base_addr, CyENB_RCVR | CyENB_XMTR);
-
- base_addr[CyCAR] = (u_char) channel; /* !!! Is this needed? */
- base_addr[CyMSVR1] = CyRTS;
-/* CP('S');CP('1'); */
- base_addr[CyMSVR2] = CyDTR;
-
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
-
- base_addr[CyIER] |= CyRxData;
- info->flags |= ASYNC_INITIALIZED;
-
- if (info->tty) {
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- }
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
- local_irq_restore(flags);
-
-#ifdef SERIAL_DEBUG_OPEN
- printk(" done\n");
-#endif
- return 0;
-} /* startup */
-
-void start_xmit(struct cyclades_port *info)
-{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
-
- channel = info->line;
- local_irq_save(flags);
- base_addr[CyCAR] = channel;
- base_addr[CyIER] |= CyTxMpty;
- local_irq_restore(flags);
-} /* start_xmit */
-
-/*
- * This routine shuts down a serial port; interrupts are disabled,
- * and DTR is dropped if the hangup on close termio flag is on.
- */
-static void shutdown(struct cyclades_port *info)
-{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
-
- if (!(info->flags & ASYNC_INITIALIZED)) {
-/* CP('$'); */
- return;
- }
-
- channel = info->line;
-
-#ifdef SERIAL_DEBUG_OPEN
- printk("shutdown channel %d\n", channel);
-#endif
-
- /* !!! REALLY MUST WAIT FOR LAST CHARACTER TO BE
- SENT BEFORE DROPPING THE LINE !!! (Perhaps
- set some flag that is read when XMTY happens.)
- Other choices are to delay some fixed interval
- or schedule some later processing.
- */
- local_irq_save(flags);
- if (info->xmit_buf) {
- free_page((unsigned long)info->xmit_buf);
- info->xmit_buf = NULL;
- }
-
- base_addr[CyCAR] = (u_char) channel;
- if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
- base_addr[CyMSVR1] = 0;
-/* CP('C');CP('1'); */
- base_addr[CyMSVR2] = 0;
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: dropping DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
- }
- write_cy_cmd(base_addr, CyDIS_RCVR);
- /* it may be appropriate to clear _XMIT at
- some later date (after testing)!!! */
-
- if (info->tty) {
- set_bit(TTY_IO_ERROR, &info->tty->flags);
- }
- info->flags &= ~ASYNC_INITIALIZED;
- local_irq_restore(flags);
-
-#ifdef SERIAL_DEBUG_OPEN
- printk(" done\n");
-#endif
-} /* shutdown */
-
-/*
- * This routine finds or computes the various line characteristics.
- */
-static void config_setup(struct cyclades_port *info)
-{
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
- unsigned cflag;
- int i;
- unsigned char ti, need_init_chan = 0;
-
- if (!info->tty || !info->tty->termios) {
- return;
- }
- if (info->line == -1) {
- return;
- }
- cflag = info->tty->termios->c_cflag;
-
- /* baud rate */
- i = cflag & CBAUD;
-#ifdef CBAUDEX
-/* Starting with kernel 1.1.65, there is direct support for
- higher baud rates. The following code supports those
- changes. The conditional aspect allows this driver to be
- used for earlier as well as later kernel versions. (The
- mapping is slightly different from serial.c because there
- is still the possibility of supporting 75 kbit/sec with
- the Cyclades board.)
- */
- if (i & CBAUDEX) {
- if (i == B57600)
- i = 16;
- else if (i == B115200)
- i = 18;
-#ifdef B78600
- else if (i == B78600)
- i = 17;
-#endif
- else
- info->tty->termios->c_cflag &= ~CBAUDEX;
- }
-#endif
- if (i == 15) {
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- i += 1;
- if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- i += 3;
- }
- /* Don't ever change the speed of the console port. It will
- * run at the speed specified in bootinfo, or at 19.2K */
- /* Actually, it should run at whatever speed 166Bug was using */
- /* Note info->timeout isn't used at present */
- if (info != serial_console_info) {
- info->tbpr = baud_bpr[i]; /* Tx BPR */
- info->tco = baud_co[i]; /* Tx CO */
- info->rbpr = baud_bpr[i]; /* Rx BPR */
- info->rco = baud_co[i] >> 5; /* Rx CO */
- if (baud_table[i] == 134) {
- info->timeout =
- (info->xmit_fifo_size * HZ * 30 / 269) + 2;
- /* get it right for 134.5 baud */
- } else if (baud_table[i]) {
- info->timeout =
- (info->xmit_fifo_size * HZ * 15 / baud_table[i]) +
- 2;
- /* this needs to be propagated into the card info */
- } else {
- info->timeout = 0;
- }
- }
- /* By tradition (is it a standard?) a baud rate of zero
- implies the line should be/has been closed. A bit
- later in this routine such a test is performed. */
-
- /* byte size and parity */
- info->cor7 = 0;
- info->cor6 = 0;
- info->cor5 = 0;
- info->cor4 = (info->default_threshold ? info->default_threshold : baud_cor4[i]); /* receive threshold */
- /* Following two lines added 101295, RGH. */
- /* It is obviously wrong to access CyCORx, and not info->corx here,
- * try and remember to fix it later! */
- channel = info->line;
- base_addr[CyCAR] = (u_char) channel;
- if (C_CLOCAL(info->tty)) {
- if (base_addr[CyIER] & CyMdmCh)
- base_addr[CyIER] &= ~CyMdmCh; /* without modem intr */
- /* ignore 1->0 modem transitions */
- if (base_addr[CyCOR4] & (CyDSR | CyCTS | CyDCD))
- base_addr[CyCOR4] &= ~(CyDSR | CyCTS | CyDCD);
- /* ignore 0->1 modem transitions */
- if (base_addr[CyCOR5] & (CyDSR | CyCTS | CyDCD))
- base_addr[CyCOR5] &= ~(CyDSR | CyCTS | CyDCD);
- } else {
- if ((base_addr[CyIER] & CyMdmCh) != CyMdmCh)
- base_addr[CyIER] |= CyMdmCh; /* with modem intr */
- /* act on 1->0 modem transitions */
- if ((base_addr[CyCOR4] & (CyDSR | CyCTS | CyDCD)) !=
- (CyDSR | CyCTS | CyDCD))
- base_addr[CyCOR4] |= CyDSR | CyCTS | CyDCD;
- /* act on 0->1 modem transitions */
- if ((base_addr[CyCOR5] & (CyDSR | CyCTS | CyDCD)) !=
- (CyDSR | CyCTS | CyDCD))
- base_addr[CyCOR5] |= CyDSR | CyCTS | CyDCD;
- }
- info->cor3 = (cflag & CSTOPB) ? Cy_2_STOP : Cy_1_STOP;
- info->cor2 = CyETC;
- switch (cflag & CSIZE) {
- case CS5:
- info->cor1 = Cy_5_BITS;
- break;
- case CS6:
- info->cor1 = Cy_6_BITS;
- break;
- case CS7:
- info->cor1 = Cy_7_BITS;
- break;
- case CS8:
- info->cor1 = Cy_8_BITS;
- break;
- }
- if (cflag & PARENB) {
- if (cflag & PARODD) {
- info->cor1 |= CyPARITY_O;
- } else {
- info->cor1 |= CyPARITY_E;
- }
- } else {
- info->cor1 |= CyPARITY_NONE;
- }
-
- /* CTS flow control flag */
-#if 0
- /* Don't complcate matters for now! RGH 141095 */
- if (cflag & CRTSCTS) {
- info->flags |= ASYNC_CTS_FLOW;
- info->cor2 |= CyCtsAE;
- } else {
- info->flags &= ~ASYNC_CTS_FLOW;
- info->cor2 &= ~CyCtsAE;
- }
-#endif
- if (cflag & CLOCAL)
- info->flags &= ~ASYNC_CHECK_CD;
- else
- info->flags |= ASYNC_CHECK_CD;
-
- /***********************************************
- The hardware option, CyRtsAO, presents RTS when
- the chip has characters to send. Since most modems
- use RTS as reverse (inbound) flow control, this
- option is not used. If inbound flow control is
- necessary, DTR can be programmed to provide the
- appropriate signals for use with a non-standard
- cable. Contact Marcio Saito for details.
- ***********************************************/
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
-
- /* CyCMR set once only in mvme167_init_serial() */
- if (base_addr[CyLICR] != channel << 2)
- base_addr[CyLICR] = channel << 2;
- if (base_addr[CyLIVR] != 0x5c)
- base_addr[CyLIVR] = 0x5c;
-
- /* tx and rx baud rate */
-
- if (base_addr[CyCOR1] != info->cor1)
- need_init_chan = 1;
- if (base_addr[CyTCOR] != info->tco)
- base_addr[CyTCOR] = info->tco;
- if (base_addr[CyTBPR] != info->tbpr)
- base_addr[CyTBPR] = info->tbpr;
- if (base_addr[CyRCOR] != info->rco)
- base_addr[CyRCOR] = info->rco;
- if (base_addr[CyRBPR] != info->rbpr)
- base_addr[CyRBPR] = info->rbpr;
-
- /* set line characteristics according configuration */
-
- if (base_addr[CySCHR1] != START_CHAR(info->tty))
- base_addr[CySCHR1] = START_CHAR(info->tty);
- if (base_addr[CySCHR2] != STOP_CHAR(info->tty))
- base_addr[CySCHR2] = STOP_CHAR(info->tty);
- if (base_addr[CySCRL] != START_CHAR(info->tty))
- base_addr[CySCRL] = START_CHAR(info->tty);
- if (base_addr[CySCRH] != START_CHAR(info->tty))
- base_addr[CySCRH] = START_CHAR(info->tty);
- if (base_addr[CyCOR1] != info->cor1)
- base_addr[CyCOR1] = info->cor1;
- if (base_addr[CyCOR2] != info->cor2)
- base_addr[CyCOR2] = info->cor2;
- if (base_addr[CyCOR3] != info->cor3)
- base_addr[CyCOR3] = info->cor3;
- if (base_addr[CyCOR4] != info->cor4)
- base_addr[CyCOR4] = info->cor4;
- if (base_addr[CyCOR5] != info->cor5)
- base_addr[CyCOR5] = info->cor5;
- if (base_addr[CyCOR6] != info->cor6)
- base_addr[CyCOR6] = info->cor6;
- if (base_addr[CyCOR7] != info->cor7)
- base_addr[CyCOR7] = info->cor7;
-
- if (need_init_chan)
- write_cy_cmd(base_addr, CyINIT_CHAN);
-
- base_addr[CyCAR] = (u_char) channel; /* !!! Is this needed? */
-
- /* 2ms default rx timeout */
- ti = info->default_timeout ? info->default_timeout : 0x02;
- if (base_addr[CyRTPRL] != ti)
- base_addr[CyRTPRL] = ti;
- if (base_addr[CyRTPRH] != 0)
- base_addr[CyRTPRH] = 0;
-
- /* Set up RTS here also ????? RGH 141095 */
- if (i == 0) { /* baud rate is zero, turn off line */
- if ((base_addr[CyMSVR2] & CyDTR) == CyDTR)
- base_addr[CyMSVR2] = 0;
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: dropping DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
- } else {
- if ((base_addr[CyMSVR2] & CyDTR) != CyDTR)
- base_addr[CyMSVR2] = CyDTR;
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
- }
-
- if (info->tty) {
- clear_bit(TTY_IO_ERROR, &info->tty->flags);
- }
-
- local_irq_restore(flags);
-
-} /* config_setup */
-
-static int cy_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
-
-#ifdef SERIAL_DEBUG_IO
- printk("cy_put_char %s(0x%02x)\n", tty->name, ch);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_put_char"))
- return 0;
-
- if (!info->xmit_buf)
- return 0;
-
- local_irq_save(flags);
- if (info->xmit_cnt >= PAGE_SIZE - 1) {
- local_irq_restore(flags);
- return 0;
- }
-
- info->xmit_buf[info->xmit_head++] = ch;
- info->xmit_head &= PAGE_SIZE - 1;
- info->xmit_cnt++;
- local_irq_restore(flags);
- return 1;
-} /* cy_put_char */
-
-static void cy_flush_chars(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
-
-#ifdef SERIAL_DEBUG_IO
- printk("cy_flush_chars %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_flush_chars"))
- return;
-
- if (info->xmit_cnt <= 0 || tty->stopped
- || tty->hw_stopped || !info->xmit_buf)
- return;
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = channel;
- base_addr[CyIER] |= CyTxMpty;
- local_irq_restore(flags);
-} /* cy_flush_chars */
-
-/* This routine gets called when tty_write has put something into
- the write_queue. If the port is not already transmitting stuff,
- start it off by enabling interrupts. The interrupt service
- routine will then ensure that the characters are sent. If the
- port is already active, there is no need to kick it.
- */
-static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
- int c, total = 0;
-
-#ifdef SERIAL_DEBUG_IO
- printk("cy_write %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_write")) {
- return 0;
- }
-
- if (!info->xmit_buf) {
- return 0;
- }
-
- while (1) {
- local_irq_save(flags);
- c = min_t(int, count, min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - info->xmit_head));
- if (c <= 0) {
- local_irq_restore(flags);
- break;
- }
-
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
- info->xmit_head =
- (info->xmit_head + c) & (SERIAL_XMIT_SIZE - 1);
- info->xmit_cnt += c;
- local_irq_restore(flags);
-
- buf += c;
- count -= c;
- total += c;
- }
-
- if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {
- start_xmit(info);
- }
- return total;
-} /* cy_write */
-
-static int cy_write_room(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- int ret;
-
-#ifdef SERIAL_DEBUG_IO
- printk("cy_write_room %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_write_room"))
- return 0;
- ret = PAGE_SIZE - info->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
- return ret;
-} /* cy_write_room */
-
-static int cy_chars_in_buffer(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
-
-#ifdef SERIAL_DEBUG_IO
- printk("cy_chars_in_buffer %s %d\n", tty->name, info->xmit_cnt); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_chars_in_buffer"))
- return 0;
-
- return info->xmit_cnt;
-} /* cy_chars_in_buffer */
-
-static void cy_flush_buffer(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
-
-#ifdef SERIAL_DEBUG_IO
- printk("cy_flush_buffer %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_flush_buffer"))
- return;
- local_irq_save(flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- local_irq_restore(flags);
- tty_wakeup(tty);
-} /* cy_flush_buffer */
-
-/* This routine is called by the upper-layer tty layer to signal
- that incoming characters should be throttled or that the
- throttle should be released.
- */
-static void cy_throttle(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
-
-#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("throttle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
- printk("cy_throttle %s\n", tty->name);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_nthrottle")) {
- return;
- }
-
- if (I_IXOFF(tty)) {
- info->x_char = STOP_CHAR(tty);
- /* Should use the "Send Special Character" feature!!! */
- }
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- base_addr[CyMSVR1] = 0;
- local_irq_restore(flags);
-} /* cy_throttle */
-
-static void cy_unthrottle(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
- unsigned long flags;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
-
-#ifdef SERIAL_DEBUG_THROTTLE
- char buf[64];
-
- printk("throttle %s: %d....\n", tty_name(tty, buf),
- tty->ldisc.chars_in_buffer(tty));
- printk("cy_unthrottle %s\n", tty->name);
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_nthrottle")) {
- return;
- }
-
- if (I_IXOFF(tty)) {
- info->x_char = START_CHAR(tty);
- /* Should use the "Send Special Character" feature!!! */
- }
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- base_addr[CyMSVR1] = CyRTS;
- local_irq_restore(flags);
-} /* cy_unthrottle */
-
-static int
-get_serial_info(struct cyclades_port *info,
- struct serial_struct __user * retinfo)
-{
- struct serial_struct tmp;
-
-/* CP('g'); */
- if (!retinfo)
- return -EFAULT;
- memset(&tmp, 0, sizeof(tmp));
- tmp.type = info->type;
- tmp.line = info->line;
- tmp.port = info->line;
- tmp.irq = 0;
- tmp.flags = info->flags;
- tmp.baud_base = 0; /*!!! */
- tmp.close_delay = info->close_delay;
- tmp.custom_divisor = 0; /*!!! */
- tmp.hub6 = 0; /*!!! */
- return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
-} /* get_serial_info */
-
-static int
-set_serial_info(struct cyclades_port *info,
- struct serial_struct __user * new_info)
-{
- struct serial_struct new_serial;
- struct cyclades_port old_info;
-
-/* CP('s'); */
- if (!new_info)
- return -EFAULT;
- if (copy_from_user(&new_serial, new_info, sizeof(new_serial)))
- return -EFAULT;
- old_info = *info;
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((new_serial.close_delay != info->close_delay) ||
- ((new_serial.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK) !=
- (info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK)))
- return -EPERM;
- info->flags = ((info->flags & ~ASYNC_USR_MASK) |
- (new_serial.flags & ASYNC_USR_MASK));
- goto check_and_exit;
- }
-
- /*
- * OK, past this point, all the error checking has been done.
- * At this point, we start making changes.....
- */
-
- info->flags = ((info->flags & ~ASYNC_FLAGS) |
- (new_serial.flags & ASYNC_FLAGS));
- info->close_delay = new_serial.close_delay;
-
-check_and_exit:
- if (info->flags & ASYNC_INITIALIZED) {
- config_setup(info);
- return 0;
- }
- return startup(info);
-} /* set_serial_info */
-
-static int cy_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct cyclades_port *info = tty->driver_data;
- int channel;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- unsigned long flags;
- unsigned char status;
-
- channel = info->line;
-
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- status = base_addr[CyMSVR1] | base_addr[CyMSVR2];
- local_irq_restore(flags);
-
- return ((status & CyRTS) ? TIOCM_RTS : 0)
- | ((status & CyDTR) ? TIOCM_DTR : 0)
- | ((status & CyDCD) ? TIOCM_CAR : 0)
- | ((status & CyDSR) ? TIOCM_DSR : 0)
- | ((status & CyCTS) ? TIOCM_CTS : 0);
-} /* cy_tiocmget */
-
-static int
-cy_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct cyclades_port *info = tty->driver_data;
- int channel;
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- unsigned long flags;
-
- channel = info->line;
-
- if (set & TIOCM_RTS) {
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- base_addr[CyMSVR1] = CyRTS;
- local_irq_restore(flags);
- }
- if (set & TIOCM_DTR) {
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
-/* CP('S');CP('2'); */
- base_addr[CyMSVR2] = CyDTR;
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
- local_irq_restore(flags);
- }
-
- if (clear & TIOCM_RTS) {
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- base_addr[CyMSVR1] = 0;
- local_irq_restore(flags);
- }
- if (clear & TIOCM_DTR) {
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
-/* CP('C');CP('2'); */
- base_addr[CyMSVR2] = 0;
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: dropping DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
- local_irq_restore(flags);
- }
-
- return 0;
-} /* set_modem_info */
-
-static void send_break(struct cyclades_port *info, int duration)
-{ /* Let the transmit ISR take care of this (since it
- requires stuffing characters into the output stream).
- */
- info->x_break = duration;
- if (!info->xmit_cnt) {
- start_xmit(info);
- }
-} /* send_break */
-
-static int
-get_mon_info(struct cyclades_port *info, struct cyclades_monitor __user * mon)
-{
-
- if (copy_to_user(mon, &info->mon, sizeof(struct cyclades_monitor)))
- return -EFAULT;
- info->mon.int_count = 0;
- info->mon.char_count = 0;
- info->mon.char_max = 0;
- info->mon.char_last = 0;
- return 0;
-}
-
-static int set_threshold(struct cyclades_port *info, unsigned long __user * arg)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- unsigned long value;
- int channel;
-
- if (get_user(value, arg))
- return -EFAULT;
-
- channel = info->line;
- info->cor4 &= ~CyREC_FIFO;
- info->cor4 |= value & CyREC_FIFO;
- base_addr[CyCOR4] = info->cor4;
- return 0;
-}
-
-static int
-get_threshold(struct cyclades_port *info, unsigned long __user * value)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
- unsigned long tmp;
-
- channel = info->line;
-
- tmp = base_addr[CyCOR4] & CyREC_FIFO;
- return put_user(tmp, value);
-}
-
-static int
-set_default_threshold(struct cyclades_port *info, unsigned long __user * arg)
-{
- unsigned long value;
-
- if (get_user(value, arg))
- return -EFAULT;
-
- info->default_threshold = value & 0x0f;
- return 0;
-}
-
-static int
-get_default_threshold(struct cyclades_port *info, unsigned long __user * value)
-{
- return put_user(info->default_threshold, value);
-}
-
-static int set_timeout(struct cyclades_port *info, unsigned long __user * arg)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
- unsigned long value;
-
- if (get_user(value, arg))
- return -EFAULT;
-
- channel = info->line;
-
- base_addr[CyRTPRL] = value & 0xff;
- base_addr[CyRTPRH] = (value >> 8) & 0xff;
- return 0;
-}
-
-static int get_timeout(struct cyclades_port *info, unsigned long __user * value)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
- unsigned long tmp;
-
- channel = info->line;
-
- tmp = base_addr[CyRTPRL];
- return put_user(tmp, value);
-}
-
-static int set_default_timeout(struct cyclades_port *info, unsigned long value)
-{
- info->default_timeout = value & 0xff;
- return 0;
-}
-
-static int
-get_default_timeout(struct cyclades_port *info, unsigned long __user * value)
-{
- return put_user(info->default_timeout, value);
-}
-
-static int
-cy_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct cyclades_port *info = tty->driver_data;
- int ret_val = 0;
- void __user *argp = (void __user *)arg;
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_ioctl %s, cmd = %x arg = %lx\n", tty->name, cmd, arg); /* */
-#endif
-
- tty_lock();
-
- switch (cmd) {
- case CYGETMON:
- ret_val = get_mon_info(info, argp);
- break;
- case CYGETTHRESH:
- ret_val = get_threshold(info, argp);
- break;
- case CYSETTHRESH:
- ret_val = set_threshold(info, argp);
- break;
- case CYGETDEFTHRESH:
- ret_val = get_default_threshold(info, argp);
- break;
- case CYSETDEFTHRESH:
- ret_val = set_default_threshold(info, argp);
- break;
- case CYGETTIMEOUT:
- ret_val = get_timeout(info, argp);
- break;
- case CYSETTIMEOUT:
- ret_val = set_timeout(info, argp);
- break;
- case CYGETDEFTIMEOUT:
- ret_val = get_default_timeout(info, argp);
- break;
- case CYSETDEFTIMEOUT:
- ret_val = set_default_timeout(info, (unsigned long)arg);
- break;
- case TCSBRK: /* SVID version: non-zero arg --> no break */
- ret_val = tty_check_change(tty);
- if (ret_val)
- break;
- tty_wait_until_sent(tty, 0);
- if (!arg)
- send_break(info, HZ / 4); /* 1/4 second */
- break;
- case TCSBRKP: /* support for POSIX tcsendbreak() */
- ret_val = tty_check_change(tty);
- if (ret_val)
- break;
- tty_wait_until_sent(tty, 0);
- send_break(info, arg ? arg * (HZ / 10) : HZ / 4);
- break;
-
-/* The following commands are incompletely implemented!!! */
- case TIOCGSERIAL:
- ret_val = get_serial_info(info, argp);
- break;
- case TIOCSSERIAL:
- ret_val = set_serial_info(info, argp);
- break;
- default:
- ret_val = -ENOIOCTLCMD;
- }
- tty_unlock();
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_ioctl done\n");
-#endif
-
- return ret_val;
-} /* cy_ioctl */
-
-static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct cyclades_port *info = tty->driver_data;
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_set_termios %s\n", tty->name);
-#endif
-
- if (tty->termios->c_cflag == old_termios->c_cflag)
- return;
- config_setup(info);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->stopped = 0;
- cy_start(tty);
- }
-#ifdef tytso_patch_94Nov25_1726
- if (!(old_termios->c_cflag & CLOCAL) &&
- (tty->termios->c_cflag & CLOCAL))
- wake_up_interruptible(&info->open_wait);
-#endif
-} /* cy_set_termios */
-
-static void cy_close(struct tty_struct *tty, struct file *filp)
-{
- struct cyclades_port *info = tty->driver_data;
-
-/* CP('C'); */
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_close %s\n", tty->name);
-#endif
-
- if (!info || serial_paranoia_check(info, tty->name, "cy_close")) {
- return;
- }
-#ifdef SERIAL_DEBUG_OPEN
- printk("cy_close %s, count = %d\n", tty->name, info->count);
-#endif
-
- if ((tty->count == 1) && (info->count != 1)) {
- /*
- * Uh, oh. tty->count is 1, which means that the tty
- * structure will be freed. Info->count should always
- * be one in these conditions. If it's greater than
- * one, we've got real problems, since it means the
- * serial port won't be shutdown.
- */
- printk("cy_close: bad serial port count; tty->count is 1, "
- "info->count is %d\n", info->count);
- info->count = 1;
- }
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: decrementing count to %d\n", __LINE__,
- info->count - 1);
-#endif
- if (--info->count < 0) {
- printk("cy_close: bad serial port count for ttys%d: %d\n",
- info->line, info->count);
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: setting count to 0\n", __LINE__);
-#endif
- info->count = 0;
- }
- if (info->count)
- return;
- info->flags |= ASYNC_CLOSING;
- if (info->flags & ASYNC_INITIALIZED)
- tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */
- shutdown(info);
- cy_flush_buffer(tty);
- tty_ldisc_flush(tty);
- info->tty = NULL;
- if (info->blocked_open) {
- if (info->close_delay) {
- msleep_interruptible(jiffies_to_msecs
- (info->close_delay));
- }
- wake_up_interruptible(&info->open_wait);
- }
- info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
- wake_up_interruptible(&info->close_wait);
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_close done\n");
-#endif
-} /* cy_close */
-
-/*
- * cy_hangup() --- called by tty_hangup() when a hangup is signaled.
- */
-void cy_hangup(struct tty_struct *tty)
-{
- struct cyclades_port *info = tty->driver_data;
-
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_hangup %s\n", tty->name); /* */
-#endif
-
- if (serial_paranoia_check(info, tty->name, "cy_hangup"))
- return;
-
- shutdown(info);
-#if 0
- info->event = 0;
- info->count = 0;
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: setting count to 0\n", __LINE__);
-#endif
- info->tty = 0;
-#endif
- info->flags &= ~ASYNC_NORMAL_ACTIVE;
- wake_up_interruptible(&info->open_wait);
-} /* cy_hangup */
-
-/*
- * ------------------------------------------------------------
- * cy_open() and friends
- * ------------------------------------------------------------
- */
-
-static int
-block_til_ready(struct tty_struct *tty, struct file *filp,
- struct cyclades_port *info)
-{
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- int channel;
- int retval;
- volatile u_char *base_addr = (u_char *) BASE_ADDR;
-
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (info->flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&info->close_wait);
- if (info->flags & ASYNC_HUP_NOTIFY) {
- return -EAGAIN;
- } else {
- return -ERESTARTSYS;
- }
- }
-
- /*
- * If non-blocking mode is set, then make the check up front
- * and then exit.
- */
- if (filp->f_flags & O_NONBLOCK) {
- info->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- /*
- * Block waiting for the carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, info->count is dropped by one, so that
- * cy_close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
- retval = 0;
- add_wait_queue(&info->open_wait, &wait);
-#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready before block: %s, count = %d\n",
- tty->name, info->count);
- /**/
-#endif
- info->count--;
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: decrementing count to %d\n", __LINE__, info->count);
-#endif
- info->blocked_open++;
-
- channel = info->line;
-
- while (1) {
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
- base_addr[CyMSVR1] = CyRTS;
-/* CP('S');CP('4'); */
- base_addr[CyMSVR2] = CyDTR;
-#ifdef SERIAL_DEBUG_DTR
- printk("cyc: %d: raising DTR\n", __LINE__);
- printk(" status: 0x%x, 0x%x\n", base_addr[CyMSVR1],
- base_addr[CyMSVR2]);
-#endif
- local_irq_restore(flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp)
- || !(info->flags & ASYNC_INITIALIZED)) {
- if (info->flags & ASYNC_HUP_NOTIFY) {
- retval = -EAGAIN;
- } else {
- retval = -ERESTARTSYS;
- }
- break;
- }
- local_irq_save(flags);
- base_addr[CyCAR] = (u_char) channel;
-/* CP('L');CP1(1 && C_CLOCAL(tty)); CP1(1 && (base_addr[CyMSVR1] & CyDCD) ); */
- if (!(info->flags & ASYNC_CLOSING)
- && (C_CLOCAL(tty)
- || (base_addr[CyMSVR1] & CyDCD))) {
- local_irq_restore(flags);
- break;
- }
- local_irq_restore(flags);
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
-#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready blocking: %s, count = %d\n",
- tty->name, info->count);
- /**/
-#endif
- tty_unlock();
- schedule();
- tty_lock();
- }
- __set_current_state(TASK_RUNNING);
- remove_wait_queue(&info->open_wait, &wait);
- if (!tty_hung_up_p(filp)) {
- info->count++;
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: incrementing count to %d\n", __LINE__,
- info->count);
-#endif
- }
- info->blocked_open--;
-#ifdef SERIAL_DEBUG_OPEN
- printk("block_til_ready after blocking: %s, count = %d\n",
- tty->name, info->count);
- /**/
-#endif
- if (retval)
- return retval;
- info->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
-} /* block_til_ready */
-
-/*
- * This routine is called whenever a serial port is opened. It
- * performs the serial-specific initialization for the tty structure.
- */
-int cy_open(struct tty_struct *tty, struct file *filp)
-{
- struct cyclades_port *info;
- int retval, line;
-
-/* CP('O'); */
- line = tty->index;
- if ((line < 0) || (NR_PORTS <= line)) {
- return -ENODEV;
- }
- info = &cy_port[line];
- if (info->line < 0) {
- return -ENODEV;
- }
-#ifdef SERIAL_DEBUG_OTHER
- printk("cy_open %s\n", tty->name); /* */
-#endif
- if (serial_paranoia_check(info, tty->name, "cy_open")) {
- return -ENODEV;
- }
-#ifdef SERIAL_DEBUG_OPEN
- printk("cy_open %s, count = %d\n", tty->name, info->count);
- /**/
-#endif
- info->count++;
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: incrementing count to %d\n", __LINE__, info->count);
-#endif
- tty->driver_data = info;
- info->tty = tty;
-
- /*
- * Start up serial port
- */
- retval = startup(info);
- if (retval) {
- return retval;
- }
-
- retval = block_til_ready(tty, filp, info);
- if (retval) {
-#ifdef SERIAL_DEBUG_OPEN
- printk("cy_open returning after block_til_ready with %d\n",
- retval);
-#endif
- return retval;
- }
-#ifdef SERIAL_DEBUG_OPEN
- printk("cy_open done\n");
- /**/
-#endif
- return 0;
-} /* cy_open */
-
-/*
- * ---------------------------------------------------------------------
- * serial167_init() and friends
- *
- * serial167_init() is called at boot-time to initialize the serial driver.
- * ---------------------------------------------------------------------
- */
-
-/*
- * This routine prints out the appropriate serial driver version
- * number, and identifies which options were configured into this
- * driver.
- */
-static void show_version(void)
-{
- printk("MVME166/167 cd2401 driver\n");
-} /* show_version */
-
-/* initialize chips on card -- return number of valid
- chips (which is number of ports/4) */
-
-/*
- * This initialises the hardware to a reasonable state. It should
- * probe the chip first so as to copy 166-Bug setup as a default for
- * port 0. It initialises CMR to CyASYNC; that is never done again, so
- * as to limit the number of CyINIT_CHAN commands in normal running.
- *
- * ... I wonder what I should do if this fails ...
- */
-
-void mvme167_serial_console_setup(int cflag)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int ch;
- u_char spd;
- u_char rcor, rbpr, badspeed = 0;
- unsigned long flags;
-
- local_irq_save(flags);
-
- /*
- * First probe channel zero of the chip, to see what speed has
- * been selected.
- */
-
- base_addr[CyCAR] = 0;
-
- rcor = base_addr[CyRCOR] << 5;
- rbpr = base_addr[CyRBPR];
-
- for (spd = 0; spd < sizeof(baud_bpr); spd++)
- if (rbpr == baud_bpr[spd] && rcor == baud_co[spd])
- break;
- if (spd >= sizeof(baud_bpr)) {
- spd = 14; /* 19200 */
- badspeed = 1; /* Failed to identify speed */
- }
- initial_console_speed = spd;
-
- /* OK, we have chosen a speed, now reset and reinitialise */
-
- my_udelay(20000L); /* Allow time for any active o/p to complete */
- if (base_addr[CyCCR] != 0x00) {
- local_irq_restore(flags);
- /* printk(" chip is never idle (CCR != 0)\n"); */
- return;
- }
-
- base_addr[CyCCR] = CyCHIP_RESET; /* Reset the chip */
- my_udelay(1000L);
-
- if (base_addr[CyGFRCR] == 0x00) {
- local_irq_restore(flags);
- /* printk(" chip is not responding (GFRCR stayed 0)\n"); */
- return;
- }
-
- /*
- * System clock is 20Mhz, divided by 2048, so divide by 10 for a 1.0ms
- * tick
- */
-
- base_addr[CyTPR] = 10;
-
- base_addr[CyPILR1] = 0x01; /* Interrupt level for modem change */
- base_addr[CyPILR2] = 0x02; /* Interrupt level for tx ints */
- base_addr[CyPILR3] = 0x03; /* Interrupt level for rx ints */
-
- /*
- * Attempt to set up all channels to something reasonable, and
- * bang out a INIT_CHAN command. We should then be able to limit
- * the amount of fiddling we have to do in normal running.
- */
-
- for (ch = 3; ch >= 0; ch--) {
- base_addr[CyCAR] = (u_char) ch;
- base_addr[CyIER] = 0;
- base_addr[CyCMR] = CyASYNC;
- base_addr[CyLICR] = (u_char) ch << 2;
- base_addr[CyLIVR] = 0x5c;
- base_addr[CyTCOR] = baud_co[spd];
- base_addr[CyTBPR] = baud_bpr[spd];
- base_addr[CyRCOR] = baud_co[spd] >> 5;
- base_addr[CyRBPR] = baud_bpr[spd];
- base_addr[CySCHR1] = 'Q' & 0x1f;
- base_addr[CySCHR2] = 'X' & 0x1f;
- base_addr[CySCRL] = 0;
- base_addr[CySCRH] = 0;
- base_addr[CyCOR1] = Cy_8_BITS | CyPARITY_NONE;
- base_addr[CyCOR2] = 0;
- base_addr[CyCOR3] = Cy_1_STOP;
- base_addr[CyCOR4] = baud_cor4[spd];
- base_addr[CyCOR5] = 0;
- base_addr[CyCOR6] = 0;
- base_addr[CyCOR7] = 0;
- base_addr[CyRTPRL] = 2;
- base_addr[CyRTPRH] = 0;
- base_addr[CyMSVR1] = 0;
- base_addr[CyMSVR2] = 0;
- write_cy_cmd(base_addr, CyINIT_CHAN | CyDIS_RCVR | CyDIS_XMTR);
- }
-
- /*
- * Now do specials for channel zero....
- */
-
- base_addr[CyMSVR1] = CyRTS;
- base_addr[CyMSVR2] = CyDTR;
- base_addr[CyIER] = CyRxData;
- write_cy_cmd(base_addr, CyENB_RCVR | CyENB_XMTR);
-
- local_irq_restore(flags);
-
- my_udelay(20000L); /* Let it all settle down */
-
- printk("CD2401 initialised, chip is rev 0x%02x\n", base_addr[CyGFRCR]);
- if (badspeed)
- printk
- (" WARNING: Failed to identify line speed, rcor=%02x,rbpr=%02x\n",
- rcor >> 5, rbpr);
-} /* serial_console_init */
-
-static const struct tty_operations cy_ops = {
- .open = cy_open,
- .close = cy_close,
- .write = cy_write,
- .put_char = cy_put_char,
- .flush_chars = cy_flush_chars,
- .write_room = cy_write_room,
- .chars_in_buffer = cy_chars_in_buffer,
- .flush_buffer = cy_flush_buffer,
- .ioctl = cy_ioctl,
- .throttle = cy_throttle,
- .unthrottle = cy_unthrottle,
- .set_termios = cy_set_termios,
- .stop = cy_stop,
- .start = cy_start,
- .hangup = cy_hangup,
- .tiocmget = cy_tiocmget,
- .tiocmset = cy_tiocmset,
-};
-
-/* The serial driver boot-time initialization code!
- Hardware I/O ports are mapped to character special devices on a
- first found, first allocated manner. That is, this code searches
- for Cyclom cards in the system. As each is found, it is probed
- to discover how many chips (and thus how many ports) are present.
- These ports are mapped to the tty ports 64 and upward in monotonic
- fashion. If an 8-port card is replaced with a 16-port card, the
- port mapping on a following card will shift.
-
- This approach is different from what is used in the other serial
- device driver because the Cyclom is more properly a multiplexer,
- not just an aggregation of serial ports on one card.
-
- If there are more cards with more ports than have been statically
- allocated above, a warning is printed and the extra ports are ignored.
- */
-static int __init serial167_init(void)
-{
- struct cyclades_port *info;
- int ret = 0;
- int good_ports = 0;
- int port_num = 0;
- int index;
- int DefSpeed;
-#ifdef notyet
- struct sigaction sa;
-#endif
-
- if (!(mvme16x_config & MVME16x_CONFIG_GOT_CD2401))
- return 0;
-
- cy_serial_driver = alloc_tty_driver(NR_PORTS);
- if (!cy_serial_driver)
- return -ENOMEM;
-
-#if 0
- scrn[1] = '\0';
-#endif
-
- show_version();
-
- /* Has "console=0,9600n8" been used in bootinfo to change speed? */
- if (serial_console_cflag)
- DefSpeed = serial_console_cflag & 0017;
- else {
- DefSpeed = initial_console_speed;
- serial_console_info = &cy_port[0];
- serial_console_cflag = DefSpeed | CS8;
-#if 0
- serial_console = 64; /*callout_driver.minor_start */
-#endif
- }
-
- /* Initialize the tty_driver structure */
-
- cy_serial_driver->owner = THIS_MODULE;
- cy_serial_driver->name = "ttyS";
- cy_serial_driver->major = TTY_MAJOR;
- cy_serial_driver->minor_start = 64;
- cy_serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- cy_serial_driver->subtype = SERIAL_TYPE_NORMAL;
- cy_serial_driver->init_termios = tty_std_termios;
- cy_serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- cy_serial_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(cy_serial_driver, &cy_ops);
-
- ret = tty_register_driver(cy_serial_driver);
- if (ret) {
- printk(KERN_ERR "Couldn't register MVME166/7 serial driver\n");
- put_tty_driver(cy_serial_driver);
- return ret;
- }
-
- port_num = 0;
- info = cy_port;
- for (index = 0; index < 1; index++) {
-
- good_ports = 4;
-
- if (port_num < NR_PORTS) {
- while (good_ports-- && port_num < NR_PORTS) {
- /*** initialize port ***/
- info->magic = CYCLADES_MAGIC;
- info->type = PORT_CIRRUS;
- info->card = index;
- info->line = port_num;
- info->flags = STD_COM_FLAGS;
- info->tty = NULL;
- info->xmit_fifo_size = 12;
- info->cor1 = CyPARITY_NONE | Cy_8_BITS;
- info->cor2 = CyETC;
- info->cor3 = Cy_1_STOP;
- info->cor4 = 0x08; /* _very_ small receive threshold */
- info->cor5 = 0;
- info->cor6 = 0;
- info->cor7 = 0;
- info->tbpr = baud_bpr[DefSpeed]; /* Tx BPR */
- info->tco = baud_co[DefSpeed]; /* Tx CO */
- info->rbpr = baud_bpr[DefSpeed]; /* Rx BPR */
- info->rco = baud_co[DefSpeed] >> 5; /* Rx CO */
- info->close_delay = 0;
- info->x_char = 0;
- info->count = 0;
-#ifdef SERIAL_DEBUG_COUNT
- printk("cyc: %d: setting count to 0\n",
- __LINE__);
-#endif
- info->blocked_open = 0;
- info->default_threshold = 0;
- info->default_timeout = 0;
- init_waitqueue_head(&info->open_wait);
- init_waitqueue_head(&info->close_wait);
- /* info->session */
- /* info->pgrp */
-/*** !!!!!!!! this may expose new bugs !!!!!!!!! *********/
- info->read_status_mask =
- CyTIMEOUT | CySPECHAR | CyBREAK | CyPARITY |
- CyFRAME | CyOVERRUN;
- /* info->timeout */
-
- printk("ttyS%d ", info->line);
- port_num++;
- info++;
- if (!(port_num & 7)) {
- printk("\n ");
- }
- }
- }
- printk("\n");
- }
- while (port_num < NR_PORTS) {
- info->line = -1;
- port_num++;
- info++;
- }
-
- ret = request_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt, 0,
- "cd2401_errors", cd2401_rxerr_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_errors IRQ");
- goto cleanup_serial_driver;
- }
-
- ret = request_irq(MVME167_IRQ_SER_MODEM, cd2401_modem_interrupt, 0,
- "cd2401_modem", cd2401_modem_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_modem IRQ");
- goto cleanup_irq_cd2401_errors;
- }
-
- ret = request_irq(MVME167_IRQ_SER_TX, cd2401_tx_interrupt, 0,
- "cd2401_txints", cd2401_tx_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_txints IRQ");
- goto cleanup_irq_cd2401_modem;
- }
-
- ret = request_irq(MVME167_IRQ_SER_RX, cd2401_rx_interrupt, 0,
- "cd2401_rxints", cd2401_rx_interrupt);
- if (ret) {
- printk(KERN_ERR "Could't get cd2401_rxints IRQ");
- goto cleanup_irq_cd2401_txints;
- }
-
- /* Now we have registered the interrupt handlers, allow the interrupts */
-
- pcc2chip[PccSCCMICR] = 0x15; /* Serial ints are level 5 */
- pcc2chip[PccSCCTICR] = 0x15;
- pcc2chip[PccSCCRICR] = 0x15;
-
- pcc2chip[PccIMLR] = 3; /* Allow PCC2 ints above 3!? */
-
- return 0;
-cleanup_irq_cd2401_txints:
- free_irq(MVME167_IRQ_SER_TX, cd2401_tx_interrupt);
-cleanup_irq_cd2401_modem:
- free_irq(MVME167_IRQ_SER_MODEM, cd2401_modem_interrupt);
-cleanup_irq_cd2401_errors:
- free_irq(MVME167_IRQ_SER_ERR, cd2401_rxerr_interrupt);
-cleanup_serial_driver:
- if (tty_unregister_driver(cy_serial_driver))
- printk(KERN_ERR
- "Couldn't unregister MVME166/7 serial driver\n");
- put_tty_driver(cy_serial_driver);
- return ret;
-} /* serial167_init */
-
-module_init(serial167_init);
-
-#ifdef CYCLOM_SHOW_STATUS
-static void show_status(int line_num)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- int channel;
- struct cyclades_port *info;
- unsigned long flags;
-
- info = &cy_port[line_num];
- channel = info->line;
- printk(" channel %d\n", channel);
- /**/ printk(" cy_port\n");
- printk(" card line flags = %d %d %x\n",
- info->card, info->line, info->flags);
- printk
- (" *tty read_status_mask timeout xmit_fifo_size = %lx %x %x %x\n",
- (long)info->tty, info->read_status_mask, info->timeout,
- info->xmit_fifo_size);
- printk(" cor1,cor2,cor3,cor4,cor5,cor6,cor7 = %x %x %x %x %x %x %x\n",
- info->cor1, info->cor2, info->cor3, info->cor4, info->cor5,
- info->cor6, info->cor7);
- printk(" tbpr,tco,rbpr,rco = %d %d %d %d\n", info->tbpr, info->tco,
- info->rbpr, info->rco);
- printk(" close_delay event count = %d %d %d\n", info->close_delay,
- info->event, info->count);
- printk(" x_char blocked_open = %x %x\n", info->x_char,
- info->blocked_open);
- printk(" open_wait = %lx %lx %lx\n", (long)info->open_wait);
-
- local_irq_save(flags);
-
-/* Global Registers */
-
- printk(" CyGFRCR %x\n", base_addr[CyGFRCR]);
- printk(" CyCAR %x\n", base_addr[CyCAR]);
- printk(" CyRISR %x\n", base_addr[CyRISR]);
- printk(" CyTISR %x\n", base_addr[CyTISR]);
- printk(" CyMISR %x\n", base_addr[CyMISR]);
- printk(" CyRIR %x\n", base_addr[CyRIR]);
- printk(" CyTIR %x\n", base_addr[CyTIR]);
- printk(" CyMIR %x\n", base_addr[CyMIR]);
- printk(" CyTPR %x\n", base_addr[CyTPR]);
-
- base_addr[CyCAR] = (u_char) channel;
-
-/* Virtual Registers */
-
-#if 0
- printk(" CyRIVR %x\n", base_addr[CyRIVR]);
- printk(" CyTIVR %x\n", base_addr[CyTIVR]);
- printk(" CyMIVR %x\n", base_addr[CyMIVR]);
- printk(" CyMISR %x\n", base_addr[CyMISR]);
-#endif
-
-/* Channel Registers */
-
- printk(" CyCCR %x\n", base_addr[CyCCR]);
- printk(" CyIER %x\n", base_addr[CyIER]);
- printk(" CyCOR1 %x\n", base_addr[CyCOR1]);
- printk(" CyCOR2 %x\n", base_addr[CyCOR2]);
- printk(" CyCOR3 %x\n", base_addr[CyCOR3]);
- printk(" CyCOR4 %x\n", base_addr[CyCOR4]);
- printk(" CyCOR5 %x\n", base_addr[CyCOR5]);
-#if 0
- printk(" CyCCSR %x\n", base_addr[CyCCSR]);
- printk(" CyRDCR %x\n", base_addr[CyRDCR]);
-#endif
- printk(" CySCHR1 %x\n", base_addr[CySCHR1]);
- printk(" CySCHR2 %x\n", base_addr[CySCHR2]);
-#if 0
- printk(" CySCHR3 %x\n", base_addr[CySCHR3]);
- printk(" CySCHR4 %x\n", base_addr[CySCHR4]);
- printk(" CySCRL %x\n", base_addr[CySCRL]);
- printk(" CySCRH %x\n", base_addr[CySCRH]);
- printk(" CyLNC %x\n", base_addr[CyLNC]);
- printk(" CyMCOR1 %x\n", base_addr[CyMCOR1]);
- printk(" CyMCOR2 %x\n", base_addr[CyMCOR2]);
-#endif
- printk(" CyRTPRL %x\n", base_addr[CyRTPRL]);
- printk(" CyRTPRH %x\n", base_addr[CyRTPRH]);
- printk(" CyMSVR1 %x\n", base_addr[CyMSVR1]);
- printk(" CyMSVR2 %x\n", base_addr[CyMSVR2]);
- printk(" CyRBPR %x\n", base_addr[CyRBPR]);
- printk(" CyRCOR %x\n", base_addr[CyRCOR]);
- printk(" CyTBPR %x\n", base_addr[CyTBPR]);
- printk(" CyTCOR %x\n", base_addr[CyTCOR]);
-
- local_irq_restore(flags);
-} /* show_status */
-#endif
-
-#if 0
-/* Dummy routine in mvme16x/config.c for now */
-
-/* Serial console setup. Called from linux/init/main.c */
-
-void console_setup(char *str, int *ints)
-{
- char *s;
- int baud, bits, parity;
- int cflag = 0;
-
- /* Sanity check. */
- if (ints[0] > 3 || ints[1] > 3)
- return;
-
- /* Get baud, bits and parity */
- baud = 2400;
- bits = 8;
- parity = 'n';
- if (ints[2])
- baud = ints[2];
- if ((s = strchr(str, ','))) {
- do {
- s++;
- } while (*s >= '0' && *s <= '9');
- if (*s)
- parity = *s++;
- if (*s)
- bits = *s - '0';
- }
-
- /* Now construct a cflag setting. */
- switch (baud) {
- case 1200:
- cflag |= B1200;
- break;
- case 9600:
- cflag |= B9600;
- break;
- case 19200:
- cflag |= B19200;
- break;
- case 38400:
- cflag |= B38400;
- break;
- case 2400:
- default:
- cflag |= B2400;
- break;
- }
- switch (bits) {
- case 7:
- cflag |= CS7;
- break;
- default:
- case 8:
- cflag |= CS8;
- break;
- }
- switch (parity) {
- case 'o':
- case 'O':
- cflag |= PARODD;
- break;
- case 'e':
- case 'E':
- cflag |= PARENB;
- break;
- }
-
- serial_console_info = &cy_port[ints[1]];
- serial_console_cflag = cflag;
- serial_console = ints[1] + 64; /*callout_driver.minor_start */
-}
-#endif
-
-/*
- * The following is probably out of date for 2.1.x serial console stuff.
- *
- * The console is registered early on from arch/m68k/kernel/setup.c, and
- * it therefore relies on the chip being setup correctly by 166-Bug. This
- * seems reasonable, as the serial port has been used to invoke the system
- * boot. It also means that this function must not rely on any data
- * initialisation performed by serial167_init() etc.
- *
- * Of course, once the console has been registered, we had better ensure
- * that serial167_init() doesn't leave the chip non-functional.
- *
- * The console must be locked when we get here.
- */
-
-void serial167_console_write(struct console *co, const char *str,
- unsigned count)
-{
- volatile unsigned char *base_addr = (u_char *) BASE_ADDR;
- unsigned long flags;
- volatile u_char sink;
- u_char ier;
- int port;
- u_char do_lf = 0;
- int i = 0;
-
- local_irq_save(flags);
-
- /* Ensure transmitter is enabled! */
-
- port = 0;
- base_addr[CyCAR] = (u_char) port;
- while (base_addr[CyCCR])
- ;
- base_addr[CyCCR] = CyENB_XMTR;
-
- ier = base_addr[CyIER];
- base_addr[CyIER] = CyTxMpty;
-
- while (1) {
- if (pcc2chip[PccSCCTICR] & 0x20) {
- /* We have a Tx int. Acknowledge it */
- sink = pcc2chip[PccTPIACKR];
- if ((base_addr[CyLICR] >> 2) == port) {
- if (i == count) {
- /* Last char of string is now output */
- base_addr[CyTEOIR] = CyNOTRANS;
- break;
- }
- if (do_lf) {
- base_addr[CyTDR] = '\n';
- str++;
- i++;
- do_lf = 0;
- } else if (*str == '\n') {
- base_addr[CyTDR] = '\r';
- do_lf = 1;
- } else {
- base_addr[CyTDR] = *str++;
- i++;
- }
- base_addr[CyTEOIR] = 0;
- } else
- base_addr[CyTEOIR] = CyNOTRANS;
- }
- }
-
- base_addr[CyIER] = ier;
-
- local_irq_restore(flags);
-}
-
-static struct tty_driver *serial167_console_device(struct console *c,
- int *index)
-{
- *index = c->index;
- return cy_serial_driver;
-}
-
-static struct console sercons = {
- .name = "ttyS",
- .write = serial167_console_write,
- .device = serial167_console_device,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-static int __init serial167_console_init(void)
-{
- if (vme_brdtype == VME_TYPE_MVME166 ||
- vme_brdtype == VME_TYPE_MVME167 ||
- vme_brdtype == VME_TYPE_MVME177) {
- mvme167_serial_console_setup(0);
- register_console(&sercons);
- }
- return 0;
-}
-
-console_initcall(serial167_console_init);
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
deleted file mode 100644
index c2bca3f25ef..00000000000
--- a/drivers/char/specialix.c
+++ /dev/null
@@ -1,2368 +0,0 @@
-/*
- * specialix.c -- specialix IO8+ multiport serial driver.
- *
- * Copyright (C) 1997 Roger Wolff (R.E.Wolff@BitWizard.nl)
- * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact io8-linux@specialix.co.uk if you require
- * support. But please read the documentation (specialix.txt)
- * first.
- *
- * This driver was developped in the BitWizard linux device
- * driver service. If you require a linux device driver for your
- * product, please contact devices@BitWizard.nl for a quote.
- *
- * This code is firmly based on the riscom/8 serial driver,
- * written by Dmitry Gorodchanin. The specialix IO8+ card
- * programming information was obtained from the CL-CD1865 Data
- * Book, and Specialix document number 6200059: IO8+ Hardware
- * Functional Specification.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- * Revision history:
- *
- * Revision 1.0: April 1st 1997.
- * Initial release for alpha testing.
- * Revision 1.1: April 14th 1997.
- * Incorporated Richard Hudsons suggestions,
- * removed some debugging printk's.
- * Revision 1.2: April 15th 1997.
- * Ported to 2.1.x kernels.
- * Revision 1.3: April 17th 1997
- * Backported to 2.0. (Compatibility macros).
- * Revision 1.4: April 18th 1997
- * Fixed DTR/RTS bug that caused the card to indicate
- * "don't send data" to a modem after the password prompt.
- * Fixed bug for premature (fake) interrupts.
- * Revision 1.5: April 19th 1997
- * fixed a minor typo in the header file, cleanup a little.
- * performance warnings are now MAXed at once per minute.
- * Revision 1.6: May 23 1997
- * Changed the specialix=... format to include interrupt.
- * Revision 1.7: May 27 1997
- * Made many more debug printk's a compile time option.
- * Revision 1.8: Jul 1 1997
- * port to linux-2.1.43 kernel.
- * Revision 1.9: Oct 9 1998
- * Added stuff for the IO8+/PCI version.
- * Revision 1.10: Oct 22 1999 / Jan 21 2000.
- * Added stuff for setserial.
- * Nicolas Mailhot (Nicolas.Mailhot@email.enst.fr)
- *
- */
-
-#define VERSION "1.11"
-
-
-/*
- * There is a bunch of documentation about the card, jumpers, config
- * settings, restrictions, cables, device names and numbers in
- * Documentation/serial/specialix.txt
- */
-
-#include <linux/module.h>
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/uaccess.h>
-#include <linux/gfp.h>
-
-#include "specialix_io8.h"
-#include "cd1865.h"
-
-
-/*
- This driver can spew a whole lot of debugging output at you. If you
- need maximum performance, you should disable the DEBUG define. To
- aid in debugging in the field, I'm leaving the compile-time debug
- features enabled, and disable them "runtime". That allows me to
- instruct people with problems to enable debugging without requiring
- them to recompile...
-*/
-#define DEBUG
-
-static int sx_debug;
-static int sx_rxfifo = SPECIALIX_RXFIFO;
-static int sx_rtscts;
-
-#ifdef DEBUG
-#define dprintk(f, str...) if (sx_debug & f) printk(str)
-#else
-#define dprintk(f, str...) /* nothing */
-#endif
-
-#define SX_DEBUG_FLOW 0x0001
-#define SX_DEBUG_DATA 0x0002
-#define SX_DEBUG_PROBE 0x0004
-#define SX_DEBUG_CHAN 0x0008
-#define SX_DEBUG_INIT 0x0010
-#define SX_DEBUG_RX 0x0020
-#define SX_DEBUG_TX 0x0040
-#define SX_DEBUG_IRQ 0x0080
-#define SX_DEBUG_OPEN 0x0100
-#define SX_DEBUG_TERMIOS 0x0200
-#define SX_DEBUG_SIGNALS 0x0400
-#define SX_DEBUG_FIFO 0x0800
-
-
-#define func_enter() dprintk(SX_DEBUG_FLOW, "io8: enter %s\n", __func__)
-#define func_exit() dprintk(SX_DEBUG_FLOW, "io8: exit %s\n", __func__)
-
-
-/* Configurable options: */
-
-/* Am I paranoid or not ? ;-) */
-#define SPECIALIX_PARANOIA_CHECK
-
-/*
- * The following defines are mostly for testing purposes. But if you need
- * some nice reporting in your syslog, you can define them also.
- */
-#undef SX_REPORT_FIFO
-#undef SX_REPORT_OVERRUN
-
-
-
-
-#define SPECIALIX_LEGAL_FLAGS \
- (ASYNC_HUP_NOTIFY | ASYNC_SAK | ASYNC_SPLIT_TERMIOS | \
- ASYNC_SPD_HI | ASYNC_SPEED_VHI | ASYNC_SESSION_LOCKOUT | \
- ASYNC_PGRP_LOCKOUT | ASYNC_CALLOUT_NOHUP)
-
-static struct tty_driver *specialix_driver;
-
-static struct specialix_board sx_board[SX_NBOARD] = {
- { 0, SX_IOBASE1, 9, },
- { 0, SX_IOBASE2, 11, },
- { 0, SX_IOBASE3, 12, },
- { 0, SX_IOBASE4, 15, },
-};
-
-static struct specialix_port sx_port[SX_NBOARD * SX_NPORT];
-
-
-static int sx_paranoia_check(struct specialix_port const *port,
- char *name, const char *routine)
-{
-#ifdef SPECIALIX_PARANOIA_CHECK
- static const char *badmagic = KERN_ERR
- "sx: Warning: bad specialix port magic number for device %s in %s\n";
- static const char *badinfo = KERN_ERR
- "sx: Warning: null specialix port for device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != SPECIALIX_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-#endif
- return 0;
-}
-
-
-/*
- *
- * Service functions for specialix IO8+ driver.
- *
- */
-
-/* Get board number from pointer */
-static inline int board_No(struct specialix_board *bp)
-{
- return bp - sx_board;
-}
-
-
-/* Get port number from pointer */
-static inline int port_No(struct specialix_port const *port)
-{
- return SX_PORT(port - sx_port);
-}
-
-
-/* Get pointer to board from pointer to port */
-static inline struct specialix_board *port_Board(
- struct specialix_port const *port)
-{
- return &sx_board[SX_BOARD(port - sx_port)];
-}
-
-
-/* Input Byte from CL CD186x register */
-static inline unsigned char sx_in(struct specialix_board *bp,
- unsigned short reg)
-{
- bp->reg = reg | 0x80;
- outb(reg | 0x80, bp->base + SX_ADDR_REG);
- return inb(bp->base + SX_DATA_REG);
-}
-
-
-/* Output Byte to CL CD186x register */
-static inline void sx_out(struct specialix_board *bp, unsigned short reg,
- unsigned char val)
-{
- bp->reg = reg | 0x80;
- outb(reg | 0x80, bp->base + SX_ADDR_REG);
- outb(val, bp->base + SX_DATA_REG);
-}
-
-
-/* Input Byte from CL CD186x register */
-static inline unsigned char sx_in_off(struct specialix_board *bp,
- unsigned short reg)
-{
- bp->reg = reg;
- outb(reg, bp->base + SX_ADDR_REG);
- return inb(bp->base + SX_DATA_REG);
-}
-
-
-/* Output Byte to CL CD186x register */
-static inline void sx_out_off(struct specialix_board *bp,
- unsigned short reg, unsigned char val)
-{
- bp->reg = reg;
- outb(reg, bp->base + SX_ADDR_REG);
- outb(val, bp->base + SX_DATA_REG);
-}
-
-
-/* Wait for Channel Command Register ready */
-static void sx_wait_CCR(struct specialix_board *bp)
-{
- unsigned long delay, flags;
- unsigned char ccr;
-
- for (delay = SX_CCR_TIMEOUT; delay; delay--) {
- spin_lock_irqsave(&bp->lock, flags);
- ccr = sx_in(bp, CD186x_CCR);
- spin_unlock_irqrestore(&bp->lock, flags);
- if (!ccr)
- return;
- udelay(1);
- }
-
- printk(KERN_ERR "sx%d: Timeout waiting for CCR.\n", board_No(bp));
-}
-
-
-/* Wait for Channel Command Register ready */
-static void sx_wait_CCR_off(struct specialix_board *bp)
-{
- unsigned long delay;
- unsigned char crr;
- unsigned long flags;
-
- for (delay = SX_CCR_TIMEOUT; delay; delay--) {
- spin_lock_irqsave(&bp->lock, flags);
- crr = sx_in_off(bp, CD186x_CCR);
- spin_unlock_irqrestore(&bp->lock, flags);
- if (!crr)
- return;
- udelay(1);
- }
-
- printk(KERN_ERR "sx%d: Timeout waiting for CCR.\n", board_No(bp));
-}
-
-
-/*
- * specialix IO8+ IO range functions.
- */
-
-static int sx_request_io_range(struct specialix_board *bp)
-{
- return request_region(bp->base,
- bp->flags & SX_BOARD_IS_PCI ? SX_PCI_IO_SPACE : SX_IO_SPACE,
- "specialix IO8+") == NULL;
-}
-
-
-static void sx_release_io_range(struct specialix_board *bp)
-{
- release_region(bp->base, bp->flags & SX_BOARD_IS_PCI ?
- SX_PCI_IO_SPACE : SX_IO_SPACE);
-}
-
-
-/* Set the IRQ using the RTS lines that run to the PAL on the board.... */
-static int sx_set_irq(struct specialix_board *bp)
-{
- int virq;
- int i;
- unsigned long flags;
-
- if (bp->flags & SX_BOARD_IS_PCI)
- return 1;
- switch (bp->irq) {
- /* In the same order as in the docs... */
- case 15:
- virq = 0;
- break;
- case 12:
- virq = 1;
- break;
- case 11:
- virq = 2;
- break;
- case 9:
- virq = 3;
- break;
- default:printk(KERN_ERR
- "Speclialix: cannot set irq to %d.\n", bp->irq);
- return 0;
- }
- spin_lock_irqsave(&bp->lock, flags);
- for (i = 0; i < 2; i++) {
- sx_out(bp, CD186x_CAR, i);
- sx_out(bp, CD186x_MSVRTS, ((virq >> i) & 0x1)? MSVR_RTS:0);
- }
- spin_unlock_irqrestore(&bp->lock, flags);
- return 1;
-}
-
-
-/* Reset and setup CD186x chip */
-static int sx_init_CD186x(struct specialix_board *bp)
-{
- unsigned long flags;
- int scaler;
- int rv = 1;
-
- func_enter();
- sx_wait_CCR_off(bp); /* Wait for CCR ready */
- spin_lock_irqsave(&bp->lock, flags);
- sx_out_off(bp, CD186x_CCR, CCR_HARDRESET); /* Reset CD186x chip */
- spin_unlock_irqrestore(&bp->lock, flags);
- msleep(50); /* Delay 0.05 sec */
- spin_lock_irqsave(&bp->lock, flags);
- sx_out_off(bp, CD186x_GIVR, SX_ID); /* Set ID for this chip */
- sx_out_off(bp, CD186x_GICR, 0); /* Clear all bits */
- sx_out_off(bp, CD186x_PILR1, SX_ACK_MINT); /* Prio for modem intr */
- sx_out_off(bp, CD186x_PILR2, SX_ACK_TINT); /* Prio for transmitter intr */
- sx_out_off(bp, CD186x_PILR3, SX_ACK_RINT); /* Prio for receiver intr */
- /* Set RegAckEn */
- sx_out_off(bp, CD186x_SRCR, sx_in(bp, CD186x_SRCR) | SRCR_REGACKEN);
-
- /* Setting up prescaler. We need 4 ticks per 1 ms */
- scaler = SX_OSCFREQ/SPECIALIX_TPS;
-
- sx_out_off(bp, CD186x_PPRH, scaler >> 8);
- sx_out_off(bp, CD186x_PPRL, scaler & 0xff);
- spin_unlock_irqrestore(&bp->lock, flags);
-
- if (!sx_set_irq(bp)) {
- /* Figure out how to pass this along... */
- printk(KERN_ERR "Cannot set irq to %d.\n", bp->irq);
- rv = 0;
- }
-
- func_exit();
- return rv;
-}
-
-
-static int read_cross_byte(struct specialix_board *bp, int reg, int bit)
-{
- int i;
- int t;
- unsigned long flags;
-
- spin_lock_irqsave(&bp->lock, flags);
- for (i = 0, t = 0; i < 8; i++) {
- sx_out_off(bp, CD186x_CAR, i);
- if (sx_in_off(bp, reg) & bit)
- t |= 1 << i;
- }
- spin_unlock_irqrestore(&bp->lock, flags);
-
- return t;
-}
-
-
-/* Main probing routine, also sets irq. */
-static int sx_probe(struct specialix_board *bp)
-{
- unsigned char val1, val2;
- int rev;
- int chip;
-
- func_enter();
-
- if (sx_request_io_range(bp)) {
- func_exit();
- return 1;
- }
-
- /* Are the I/O ports here ? */
- sx_out_off(bp, CD186x_PPRL, 0x5a);
- udelay(1);
- val1 = sx_in_off(bp, CD186x_PPRL);
-
- sx_out_off(bp, CD186x_PPRL, 0xa5);
- udelay(1);
- val2 = sx_in_off(bp, CD186x_PPRL);
-
-
- if (val1 != 0x5a || val2 != 0xa5) {
- printk(KERN_INFO
- "sx%d: specialix IO8+ Board at 0x%03x not found.\n",
- board_No(bp), bp->base);
- sx_release_io_range(bp);
- func_exit();
- return 1;
- }
-
- /* Check the DSR lines that Specialix uses as board
- identification */
- val1 = read_cross_byte(bp, CD186x_MSVR, MSVR_DSR);
- val2 = read_cross_byte(bp, CD186x_MSVR, MSVR_RTS);
- dprintk(SX_DEBUG_INIT,
- "sx%d: DSR lines are: %02x, rts lines are: %02x\n",
- board_No(bp), val1, val2);
-
- /* They managed to switch the bit order between the docs and
- the IO8+ card. The new PCI card now conforms to old docs.
- They changed the PCI docs to reflect the situation on the
- old card. */
- val2 = (bp->flags & SX_BOARD_IS_PCI)?0x4d : 0xb2;
- if (val1 != val2) {
- printk(KERN_INFO
- "sx%d: specialix IO8+ ID %02x at 0x%03x not found (%02x).\n",
- board_No(bp), val2, bp->base, val1);
- sx_release_io_range(bp);
- func_exit();
- return 1;
- }
-
-
- /* Reset CD186x again */
- if (!sx_init_CD186x(bp)) {
- sx_release_io_range(bp);
- func_exit();
- return 1;
- }
-
- sx_request_io_range(bp);
- bp->flags |= SX_BOARD_PRESENT;
-
- /* Chip revcode pkgtype
- GFRCR SRCR bit 7
- CD180 rev B 0x81 0
- CD180 rev C 0x82 0
- CD1864 rev A 0x82 1
- CD1865 rev A 0x83 1 -- Do not use!!! Does not work.
- CD1865 rev B 0x84 1
- -- Thanks to Gwen Wang, Cirrus Logic.
- */
-
- switch (sx_in_off(bp, CD186x_GFRCR)) {
- case 0x82:
- chip = 1864;
- rev = 'A';
- break;
- case 0x83:
- chip = 1865;
- rev = 'A';
- break;
- case 0x84:
- chip = 1865;
- rev = 'B';
- break;
- case 0x85:
- chip = 1865;
- rev = 'C';
- break; /* Does not exist at this time */
- default:
- chip = -1;
- rev = 'x';
- }
-
- dprintk(SX_DEBUG_INIT, " GFCR = 0x%02x\n", sx_in_off(bp, CD186x_GFRCR));
-
- printk(KERN_INFO
- "sx%d: specialix IO8+ board detected at 0x%03x, IRQ %d, CD%d Rev. %c.\n",
- board_No(bp), bp->base, bp->irq, chip, rev);
-
- func_exit();
- return 0;
-}
-
-/*
- *
- * Interrupt processing routines.
- * */
-
-static struct specialix_port *sx_get_port(struct specialix_board *bp,
- unsigned char const *what)
-{
- unsigned char channel;
- struct specialix_port *port = NULL;
-
- channel = sx_in(bp, CD186x_GICR) >> GICR_CHAN_OFF;
- dprintk(SX_DEBUG_CHAN, "channel: %d\n", channel);
- if (channel < CD186x_NCH) {
- port = &sx_port[board_No(bp) * SX_NPORT + channel];
- dprintk(SX_DEBUG_CHAN, "port: %d %p flags: 0x%lx\n",
- board_No(bp) * SX_NPORT + channel, port,
- port->port.flags & ASYNC_INITIALIZED);
-
- if (port->port.flags & ASYNC_INITIALIZED) {
- dprintk(SX_DEBUG_CHAN, "port: %d %p\n", channel, port);
- func_exit();
- return port;
- }
- }
- printk(KERN_INFO "sx%d: %s interrupt from invalid port %d\n",
- board_No(bp), what, channel);
- return NULL;
-}
-
-
-static void sx_receive_exc(struct specialix_board *bp)
-{
- struct specialix_port *port;
- struct tty_struct *tty;
- unsigned char status;
- unsigned char ch, flag;
-
- func_enter();
-
- port = sx_get_port(bp, "Receive");
- if (!port) {
- dprintk(SX_DEBUG_RX, "Hmm, couldn't find port.\n");
- func_exit();
- return;
- }
- tty = port->port.tty;
-
- status = sx_in(bp, CD186x_RCSR);
-
- dprintk(SX_DEBUG_RX, "status: 0x%x\n", status);
- if (status & RCSR_OE) {
- port->overrun++;
- dprintk(SX_DEBUG_FIFO,
- "sx%d: port %d: Overrun. Total %ld overruns.\n",
- board_No(bp), port_No(port), port->overrun);
- }
- status &= port->mark_mask;
-
- /* This flip buffer check needs to be below the reading of the
- status register to reset the chip's IRQ.... */
- if (tty_buffer_request_room(tty, 1) == 0) {
- dprintk(SX_DEBUG_FIFO,
- "sx%d: port %d: Working around flip buffer overflow.\n",
- board_No(bp), port_No(port));
- func_exit();
- return;
- }
-
- ch = sx_in(bp, CD186x_RDR);
- if (!status) {
- func_exit();
- return;
- }
- if (status & RCSR_TOUT) {
- printk(KERN_INFO
- "sx%d: port %d: Receiver timeout. Hardware problems ?\n",
- board_No(bp), port_No(port));
- func_exit();
- return;
-
- } else if (status & RCSR_BREAK) {
- dprintk(SX_DEBUG_RX, "sx%d: port %d: Handling break...\n",
- board_No(bp), port_No(port));
- flag = TTY_BREAK;
- if (port->port.flags & ASYNC_SAK)
- do_SAK(tty);
-
- } else if (status & RCSR_PE)
- flag = TTY_PARITY;
-
- else if (status & RCSR_FE)
- flag = TTY_FRAME;
-
- else if (status & RCSR_OE)
- flag = TTY_OVERRUN;
-
- else
- flag = TTY_NORMAL;
-
- if (tty_insert_flip_char(tty, ch, flag))
- tty_flip_buffer_push(tty);
- func_exit();
-}
-
-
-static void sx_receive(struct specialix_board *bp)
-{
- struct specialix_port *port;
- struct tty_struct *tty;
- unsigned char count;
-
- func_enter();
-
- port = sx_get_port(bp, "Receive");
- if (port == NULL) {
- dprintk(SX_DEBUG_RX, "Hmm, couldn't find port.\n");
- func_exit();
- return;
- }
- tty = port->port.tty;
-
- count = sx_in(bp, CD186x_RDCR);
- dprintk(SX_DEBUG_RX, "port: %p: count: %d\n", port, count);
- port->hits[count > 8 ? 9 : count]++;
-
- while (count--)
- tty_insert_flip_char(tty, sx_in(bp, CD186x_RDR), TTY_NORMAL);
- tty_flip_buffer_push(tty);
- func_exit();
-}
-
-
-static void sx_transmit(struct specialix_board *bp)
-{
- struct specialix_port *port;
- struct tty_struct *tty;
- unsigned char count;
-
- func_enter();
- port = sx_get_port(bp, "Transmit");
- if (port == NULL) {
- func_exit();
- return;
- }
- dprintk(SX_DEBUG_TX, "port: %p\n", port);
- tty = port->port.tty;
-
- if (port->IER & IER_TXEMPTY) {
- /* FIFO drained */
- sx_out(bp, CD186x_CAR, port_No(port));
- port->IER &= ~IER_TXEMPTY;
- sx_out(bp, CD186x_IER, port->IER);
- func_exit();
- return;
- }
-
- if ((port->xmit_cnt <= 0 && !port->break_length)
- || tty->stopped || tty->hw_stopped) {
- sx_out(bp, CD186x_CAR, port_No(port));
- port->IER &= ~IER_TXRDY;
- sx_out(bp, CD186x_IER, port->IER);
- func_exit();
- return;
- }
-
- if (port->break_length) {
- if (port->break_length > 0) {
- if (port->COR2 & COR2_ETC) {
- sx_out(bp, CD186x_TDR, CD186x_C_ESC);
- sx_out(bp, CD186x_TDR, CD186x_C_SBRK);
- port->COR2 &= ~COR2_ETC;
- }
- count = min_t(int, port->break_length, 0xff);
- sx_out(bp, CD186x_TDR, CD186x_C_ESC);
- sx_out(bp, CD186x_TDR, CD186x_C_DELAY);
- sx_out(bp, CD186x_TDR, count);
- port->break_length -= count;
- if (port->break_length == 0)
- port->break_length--;
- } else {
- sx_out(bp, CD186x_TDR, CD186x_C_ESC);
- sx_out(bp, CD186x_TDR, CD186x_C_EBRK);
- sx_out(bp, CD186x_COR2, port->COR2);
- sx_wait_CCR(bp);
- sx_out(bp, CD186x_CCR, CCR_CORCHG2);
- port->break_length = 0;
- }
-
- func_exit();
- return;
- }
-
- count = CD186x_NFIFO;
- do {
- sx_out(bp, CD186x_TDR, port->xmit_buf[port->xmit_tail++]);
- port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
- if (--port->xmit_cnt <= 0)
- break;
- } while (--count > 0);
-
- if (port->xmit_cnt <= 0) {
- sx_out(bp, CD186x_CAR, port_No(port));
- port->IER &= ~IER_TXRDY;
- sx_out(bp, CD186x_IER, port->IER);
- }
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
-
- func_exit();
-}
-
-
-static void sx_check_modem(struct specialix_board *bp)
-{
- struct specialix_port *port;
- struct tty_struct *tty;
- unsigned char mcr;
- int msvr_cd;
-
- dprintk(SX_DEBUG_SIGNALS, "Modem intr. ");
- port = sx_get_port(bp, "Modem");
- if (port == NULL)
- return;
-
- tty = port->port.tty;
-
- mcr = sx_in(bp, CD186x_MCR);
-
- if ((mcr & MCR_CDCHG)) {
- dprintk(SX_DEBUG_SIGNALS, "CD just changed... ");
- msvr_cd = sx_in(bp, CD186x_MSVR) & MSVR_CD;
- if (msvr_cd) {
- dprintk(SX_DEBUG_SIGNALS, "Waking up guys in open.\n");
- wake_up_interruptible(&port->port.open_wait);
- } else {
- dprintk(SX_DEBUG_SIGNALS, "Sending HUP.\n");
- tty_hangup(tty);
- }
- }
-
-#ifdef SPECIALIX_BRAIN_DAMAGED_CTS
- if (mcr & MCR_CTSCHG) {
- if (sx_in(bp, CD186x_MSVR) & MSVR_CTS) {
- tty->hw_stopped = 0;
- port->IER |= IER_TXRDY;
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
- } else {
- tty->hw_stopped = 1;
- port->IER &= ~IER_TXRDY;
- }
- sx_out(bp, CD186x_IER, port->IER);
- }
- if (mcr & MCR_DSSXHG) {
- if (sx_in(bp, CD186x_MSVR) & MSVR_DSR) {
- tty->hw_stopped = 0;
- port->IER |= IER_TXRDY;
- if (port->xmit_cnt <= port->wakeup_chars)
- tty_wakeup(tty);
- } else {
- tty->hw_stopped = 1;
- port->IER &= ~IER_TXRDY;
- }
- sx_out(bp, CD186x_IER, port->IER);
- }
-#endif /* SPECIALIX_BRAIN_DAMAGED_CTS */
-
- /* Clear change bits */
- sx_out(bp, CD186x_MCR, 0);
-}
-
-
-/* The main interrupt processing routine */
-static irqreturn_t sx_interrupt(int dummy, void *dev_id)
-{
- unsigned char status;
- unsigned char ack;
- struct specialix_board *bp = dev_id;
- unsigned long loop = 0;
- int saved_reg;
- unsigned long flags;
-
- func_enter();
-
- spin_lock_irqsave(&bp->lock, flags);
-
- dprintk(SX_DEBUG_FLOW, "enter %s port %d room: %ld\n", __func__,
- port_No(sx_get_port(bp, "INT")),
- SERIAL_XMIT_SIZE - sx_get_port(bp, "ITN")->xmit_cnt - 1);
- if (!(bp->flags & SX_BOARD_ACTIVE)) {
- dprintk(SX_DEBUG_IRQ, "sx: False interrupt. irq %d.\n",
- bp->irq);
- spin_unlock_irqrestore(&bp->lock, flags);
- func_exit();
- return IRQ_NONE;
- }
-
- saved_reg = bp->reg;
-
- while (++loop < 16) {
- status = sx_in(bp, CD186x_SRSR) &
- (SRSR_RREQint | SRSR_TREQint | SRSR_MREQint);
- if (status == 0)
- break;
- if (status & SRSR_RREQint) {
- ack = sx_in(bp, CD186x_RRAR);
-
- if (ack == (SX_ID | GIVR_IT_RCV))
- sx_receive(bp);
- else if (ack == (SX_ID | GIVR_IT_REXC))
- sx_receive_exc(bp);
- else
- printk(KERN_ERR
- "sx%d: status: 0x%x Bad receive ack 0x%02x.\n",
- board_No(bp), status, ack);
-
- } else if (status & SRSR_TREQint) {
- ack = sx_in(bp, CD186x_TRAR);
-
- if (ack == (SX_ID | GIVR_IT_TX))
- sx_transmit(bp);
- else
- printk(KERN_ERR "sx%d: status: 0x%x Bad transmit ack 0x%02x. port: %d\n",
- board_No(bp), status, ack,
- port_No(sx_get_port(bp, "Int")));
- } else if (status & SRSR_MREQint) {
- ack = sx_in(bp, CD186x_MRAR);
-
- if (ack == (SX_ID | GIVR_IT_MODEM))
- sx_check_modem(bp);
- else
- printk(KERN_ERR
- "sx%d: status: 0x%x Bad modem ack 0x%02x.\n",
- board_No(bp), status, ack);
-
- }
-
- sx_out(bp, CD186x_EOIR, 0); /* Mark end of interrupt */
- }
- bp->reg = saved_reg;
- outb(bp->reg, bp->base + SX_ADDR_REG);
- spin_unlock_irqrestore(&bp->lock, flags);
- func_exit();
- return IRQ_HANDLED;
-}
-
-
-/*
- * Routines for open & close processing.
- */
-
-static void turn_ints_off(struct specialix_board *bp)
-{
- unsigned long flags;
-
- func_enter();
- spin_lock_irqsave(&bp->lock, flags);
- (void) sx_in_off(bp, 0); /* Turn off interrupts. */
- spin_unlock_irqrestore(&bp->lock, flags);
-
- func_exit();
-}
-
-static void turn_ints_on(struct specialix_board *bp)
-{
- unsigned long flags;
-
- func_enter();
-
- spin_lock_irqsave(&bp->lock, flags);
- (void) sx_in(bp, 0); /* Turn ON interrupts. */
- spin_unlock_irqrestore(&bp->lock, flags);
-
- func_exit();
-}
-
-
-/* Called with disabled interrupts */
-static int sx_setup_board(struct specialix_board *bp)
-{
- int error;
-
- if (bp->flags & SX_BOARD_ACTIVE)
- return 0;
-
- if (bp->flags & SX_BOARD_IS_PCI)
- error = request_irq(bp->irq, sx_interrupt,
- IRQF_DISABLED | IRQF_SHARED, "specialix IO8+", bp);
- else
- error = request_irq(bp->irq, sx_interrupt,
- IRQF_DISABLED, "specialix IO8+", bp);
-
- if (error)
- return error;
-
- turn_ints_on(bp);
- bp->flags |= SX_BOARD_ACTIVE;
-
- return 0;
-}
-
-
-/* Called with disabled interrupts */
-static void sx_shutdown_board(struct specialix_board *bp)
-{
- func_enter();
-
- if (!(bp->flags & SX_BOARD_ACTIVE)) {
- func_exit();
- return;
- }
-
- bp->flags &= ~SX_BOARD_ACTIVE;
-
- dprintk(SX_DEBUG_IRQ, "Freeing IRQ%d for board %d.\n",
- bp->irq, board_No(bp));
- free_irq(bp->irq, bp);
- turn_ints_off(bp);
- func_exit();
-}
-
-static unsigned int sx_crtscts(struct tty_struct *tty)
-{
- if (sx_rtscts)
- return C_CRTSCTS(tty);
- return 1;
-}
-
-/*
- * Setting up port characteristics.
- * Must be called with disabled interrupts
- */
-static void sx_change_speed(struct specialix_board *bp,
- struct specialix_port *port)
-{
- struct tty_struct *tty;
- unsigned long baud;
- long tmp;
- unsigned char cor1 = 0, cor3 = 0;
- unsigned char mcor1 = 0, mcor2 = 0;
- static unsigned long again;
- unsigned long flags;
-
- func_enter();
-
- tty = port->port.tty;
- if (!tty || !tty->termios) {
- func_exit();
- return;
- }
-
- port->IER = 0;
- port->COR2 = 0;
- /* Select port on the board */
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CAR, port_No(port));
-
- /* The Specialix board doens't implement the RTS lines.
- They are used to set the IRQ level. Don't touch them. */
- if (sx_crtscts(tty))
- port->MSVR = MSVR_DTR | (sx_in(bp, CD186x_MSVR) & MSVR_RTS);
- else
- port->MSVR = (sx_in(bp, CD186x_MSVR) & MSVR_RTS);
- spin_unlock_irqrestore(&bp->lock, flags);
- dprintk(SX_DEBUG_TERMIOS, "sx: got MSVR=%02x.\n", port->MSVR);
- baud = tty_get_baud_rate(tty);
-
- if (baud == 38400) {
- if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baud = 57600;
- if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baud = 115200;
- }
-
- if (!baud) {
- /* Drop DTR & exit */
- dprintk(SX_DEBUG_TERMIOS, "Dropping DTR... Hmm....\n");
- if (!sx_crtscts(tty)) {
- port->MSVR &= ~MSVR_DTR;
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_MSVR, port->MSVR);
- spin_unlock_irqrestore(&bp->lock, flags);
- } else
- dprintk(SX_DEBUG_TERMIOS, "Can't drop DTR: no DTR.\n");
- return;
- } else {
- /* Set DTR on */
- if (!sx_crtscts(tty))
- port->MSVR |= MSVR_DTR;
- }
-
- /*
- * Now we must calculate some speed depended things
- */
-
- /* Set baud rate for port */
- tmp = port->custom_divisor ;
- if (tmp)
- printk(KERN_INFO
- "sx%d: Using custom baud rate divisor %ld. \n"
- "This is an untested option, please be careful.\n",
- port_No(port), tmp);
- else
- tmp = (((SX_OSCFREQ + baud/2) / baud + CD186x_TPC/2) /
- CD186x_TPC);
-
- if (tmp < 0x10 && time_before(again, jiffies)) {
- again = jiffies + HZ * 60;
- /* Page 48 of version 2.0 of the CL-CD1865 databook */
- if (tmp >= 12) {
- printk(KERN_INFO "sx%d: Baud rate divisor is %ld. \n"
- "Performance degradation is possible.\n"
- "Read specialix.txt for more info.\n",
- port_No(port), tmp);
- } else {
- printk(KERN_INFO "sx%d: Baud rate divisor is %ld. \n"
- "Warning: overstressing Cirrus chip. This might not work.\n"
- "Read specialix.txt for more info.\n", port_No(port), tmp);
- }
- }
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_RBPRH, (tmp >> 8) & 0xff);
- sx_out(bp, CD186x_TBPRH, (tmp >> 8) & 0xff);
- sx_out(bp, CD186x_RBPRL, tmp & 0xff);
- sx_out(bp, CD186x_TBPRL, tmp & 0xff);
- spin_unlock_irqrestore(&bp->lock, flags);
- if (port->custom_divisor)
- baud = (SX_OSCFREQ + port->custom_divisor/2) /
- port->custom_divisor;
- baud = (baud + 5) / 10; /* Estimated CPS */
-
- /* Two timer ticks seems enough to wakeup something like SLIP driver */
- tmp = ((baud + HZ/2) / HZ) * 2 - CD186x_NFIFO;
- port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
- SERIAL_XMIT_SIZE - 1 : tmp);
-
- /* Receiver timeout will be transmission time for 1.5 chars */
- tmp = (SPECIALIX_TPS + SPECIALIX_TPS/2 + baud/2) / baud;
- tmp = (tmp > 0xff) ? 0xff : tmp;
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_RTPR, tmp);
- spin_unlock_irqrestore(&bp->lock, flags);
- switch (C_CSIZE(tty)) {
- case CS5:
- cor1 |= COR1_5BITS;
- break;
- case CS6:
- cor1 |= COR1_6BITS;
- break;
- case CS7:
- cor1 |= COR1_7BITS;
- break;
- case CS8:
- cor1 |= COR1_8BITS;
- break;
- }
-
- if (C_CSTOPB(tty))
- cor1 |= COR1_2SB;
-
- cor1 |= COR1_IGNORE;
- if (C_PARENB(tty)) {
- cor1 |= COR1_NORMPAR;
- if (C_PARODD(tty))
- cor1 |= COR1_ODDP;
- if (I_INPCK(tty))
- cor1 &= ~COR1_IGNORE;
- }
- /* Set marking of some errors */
- port->mark_mask = RCSR_OE | RCSR_TOUT;
- if (I_INPCK(tty))
- port->mark_mask |= RCSR_FE | RCSR_PE;
- if (I_BRKINT(tty) || I_PARMRK(tty))
- port->mark_mask |= RCSR_BREAK;
- if (I_IGNPAR(tty))
- port->mark_mask &= ~(RCSR_FE | RCSR_PE);
- if (I_IGNBRK(tty)) {
- port->mark_mask &= ~RCSR_BREAK;
- if (I_IGNPAR(tty))
- /* Real raw mode. Ignore all */
- port->mark_mask &= ~RCSR_OE;
- }
- /* Enable Hardware Flow Control */
- if (C_CRTSCTS(tty)) {
-#ifdef SPECIALIX_BRAIN_DAMAGED_CTS
- port->IER |= IER_DSR | IER_CTS;
- mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
- mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
- spin_lock_irqsave(&bp->lock, flags);
- tty->hw_stopped = !(sx_in(bp, CD186x_MSVR) &
- (MSVR_CTS|MSVR_DSR));
- spin_unlock_irqrestore(&bp->lock, flags);
-#else
- port->COR2 |= COR2_CTSAE;
-#endif
- }
- /* Enable Software Flow Control. FIXME: I'm not sure about this */
- /* Some people reported that it works, but I still doubt it */
- if (I_IXON(tty)) {
- port->COR2 |= COR2_TXIBE;
- cor3 |= (COR3_FCT | COR3_SCDE);
- if (I_IXANY(tty))
- port->COR2 |= COR2_IXM;
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_SCHR1, START_CHAR(tty));
- sx_out(bp, CD186x_SCHR2, STOP_CHAR(tty));
- sx_out(bp, CD186x_SCHR3, START_CHAR(tty));
- sx_out(bp, CD186x_SCHR4, STOP_CHAR(tty));
- spin_unlock_irqrestore(&bp->lock, flags);
- }
- if (!C_CLOCAL(tty)) {
- /* Enable CD check */
- port->IER |= IER_CD;
- mcor1 |= MCOR1_CDZD;
- mcor2 |= MCOR2_CDOD;
- }
-
- if (C_CREAD(tty))
- /* Enable receiver */
- port->IER |= IER_RXD;
-
- /* Set input FIFO size (1-8 bytes) */
- cor3 |= sx_rxfifo;
- /* Setting up CD186x channel registers */
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_COR1, cor1);
- sx_out(bp, CD186x_COR2, port->COR2);
- sx_out(bp, CD186x_COR3, cor3);
- spin_unlock_irqrestore(&bp->lock, flags);
- /* Make CD186x know about registers change */
- sx_wait_CCR(bp);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CCR, CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3);
- /* Setting up modem option registers */
- dprintk(SX_DEBUG_TERMIOS, "Mcor1 = %02x, mcor2 = %02x.\n",
- mcor1, mcor2);
- sx_out(bp, CD186x_MCOR1, mcor1);
- sx_out(bp, CD186x_MCOR2, mcor2);
- spin_unlock_irqrestore(&bp->lock, flags);
- /* Enable CD186x transmitter & receiver */
- sx_wait_CCR(bp);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CCR, CCR_TXEN | CCR_RXEN);
- /* Enable interrupts */
- sx_out(bp, CD186x_IER, port->IER);
- /* And finally set the modem lines... */
- sx_out(bp, CD186x_MSVR, port->MSVR);
- spin_unlock_irqrestore(&bp->lock, flags);
-
- func_exit();
-}
-
-
-/* Must be called with interrupts enabled */
-static int sx_setup_port(struct specialix_board *bp,
- struct specialix_port *port)
-{
- unsigned long flags;
-
- func_enter();
-
- if (port->port.flags & ASYNC_INITIALIZED) {
- func_exit();
- return 0;
- }
-
- if (!port->xmit_buf) {
- /* We may sleep in get_zeroed_page() */
- unsigned long tmp;
-
- tmp = get_zeroed_page(GFP_KERNEL);
- if (tmp == 0L) {
- func_exit();
- return -ENOMEM;
- }
-
- if (port->xmit_buf) {
- free_page(tmp);
- func_exit();
- return -ERESTARTSYS;
- }
- port->xmit_buf = (unsigned char *) tmp;
- }
-
- spin_lock_irqsave(&port->lock, flags);
-
- if (port->port.tty)
- clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
-
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- sx_change_speed(bp, port);
- port->port.flags |= ASYNC_INITIALIZED;
-
- spin_unlock_irqrestore(&port->lock, flags);
-
-
- func_exit();
- return 0;
-}
-
-
-/* Must be called with interrupts disabled */
-static void sx_shutdown_port(struct specialix_board *bp,
- struct specialix_port *port)
-{
- struct tty_struct *tty;
- int i;
- unsigned long flags;
-
- func_enter();
-
- if (!(port->port.flags & ASYNC_INITIALIZED)) {
- func_exit();
- return;
- }
-
- if (sx_debug & SX_DEBUG_FIFO) {
- dprintk(SX_DEBUG_FIFO,
- "sx%d: port %d: %ld overruns, FIFO hits [ ",
- board_No(bp), port_No(port), port->overrun);
- for (i = 0; i < 10; i++)
- dprintk(SX_DEBUG_FIFO, "%ld ", port->hits[i]);
- dprintk(SX_DEBUG_FIFO, "].\n");
- }
-
- if (port->xmit_buf) {
- free_page((unsigned long) port->xmit_buf);
- port->xmit_buf = NULL;
- }
-
- /* Select port */
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CAR, port_No(port));
-
- tty = port->port.tty;
- if (tty == NULL || C_HUPCL(tty)) {
- /* Drop DTR */
- sx_out(bp, CD186x_MSVDTR, 0);
- }
- spin_unlock_irqrestore(&bp->lock, flags);
- /* Reset port */
- sx_wait_CCR(bp);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CCR, CCR_SOFTRESET);
- /* Disable all interrupts from this port */
- port->IER = 0;
- sx_out(bp, CD186x_IER, port->IER);
- spin_unlock_irqrestore(&bp->lock, flags);
- if (tty)
- set_bit(TTY_IO_ERROR, &tty->flags);
- port->port.flags &= ~ASYNC_INITIALIZED;
-
- if (!bp->count)
- sx_shutdown_board(bp);
- func_exit();
-}
-
-
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
- struct specialix_port *port)
-{
- DECLARE_WAITQUEUE(wait, current);
- struct specialix_board *bp = port_Board(port);
- int retval;
- int do_clocal = 0;
- int CD;
- unsigned long flags;
-
- func_enter();
-
- /*
- * If the device is in the middle of being closed, then block
- * until it's done, and then try again.
- */
- if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
- interruptible_sleep_on(&port->port.close_wait);
- if (port->port.flags & ASYNC_HUP_NOTIFY) {
- func_exit();
- return -EAGAIN;
- } else {
- func_exit();
- return -ERESTARTSYS;
- }
- }
-
- /*
- * If non-blocking mode is set, or the port is not enabled,
- * then make the check up front and then exit.
- */
- if ((filp->f_flags & O_NONBLOCK) ||
- (tty->flags & (1 << TTY_IO_ERROR))) {
- port->port.flags |= ASYNC_NORMAL_ACTIVE;
- func_exit();
- return 0;
- }
-
- if (C_CLOCAL(tty))
- do_clocal = 1;
-
- /*
- * Block waiting for the carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, info->count is dropped by one, so that
- * rs_close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
- retval = 0;
- add_wait_queue(&port->port.open_wait, &wait);
- spin_lock_irqsave(&port->lock, flags);
- if (!tty_hung_up_p(filp))
- port->port.count--;
- spin_unlock_irqrestore(&port->lock, flags);
- port->port.blocked_open++;
- while (1) {
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CAR, port_No(port));
- CD = sx_in(bp, CD186x_MSVR) & MSVR_CD;
- if (sx_crtscts(tty)) {
- /* Activate RTS */
- port->MSVR |= MSVR_DTR; /* WTF? */
- sx_out(bp, CD186x_MSVR, port->MSVR);
- } else {
- /* Activate DTR */
- port->MSVR |= MSVR_DTR;
- sx_out(bp, CD186x_MSVR, port->MSVR);
- }
- spin_unlock_irqrestore(&bp->lock, flags);
- set_current_state(TASK_INTERRUPTIBLE);
- if (tty_hung_up_p(filp) ||
- !(port->port.flags & ASYNC_INITIALIZED)) {
- if (port->port.flags & ASYNC_HUP_NOTIFY)
- retval = -EAGAIN;
- else
- retval = -ERESTARTSYS;
- break;
- }
- if (!(port->port.flags & ASYNC_CLOSING) &&
- (do_clocal || CD))
- break;
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
- tty_unlock();
- schedule();
- tty_lock();
- }
-
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->port.open_wait, &wait);
- spin_lock_irqsave(&port->lock, flags);
- if (!tty_hung_up_p(filp))
- port->port.count++;
- port->port.blocked_open--;
- spin_unlock_irqrestore(&port->lock, flags);
- if (retval) {
- func_exit();
- return retval;
- }
-
- port->port.flags |= ASYNC_NORMAL_ACTIVE;
- func_exit();
- return 0;
-}
-
-
-static int sx_open(struct tty_struct *tty, struct file *filp)
-{
- int board;
- int error;
- struct specialix_port *port;
- struct specialix_board *bp;
- int i;
- unsigned long flags;
-
- func_enter();
-
- board = SX_BOARD(tty->index);
-
- if (board >= SX_NBOARD || !(sx_board[board].flags & SX_BOARD_PRESENT)) {
- func_exit();
- return -ENODEV;
- }
-
- bp = &sx_board[board];
- port = sx_port + board * SX_NPORT + SX_PORT(tty->index);
- port->overrun = 0;
- for (i = 0; i < 10; i++)
- port->hits[i] = 0;
-
- dprintk(SX_DEBUG_OPEN,
- "Board = %d, bp = %p, port = %p, portno = %d.\n",
- board, bp, port, SX_PORT(tty->index));
-
- if (sx_paranoia_check(port, tty->name, "sx_open")) {
- func_enter();
- return -ENODEV;
- }
-
- error = sx_setup_board(bp);
- if (error) {
- func_exit();
- return error;
- }
-
- spin_lock_irqsave(&bp->lock, flags);
- port->port.count++;
- bp->count++;
- tty->driver_data = port;
- port->port.tty = tty;
- spin_unlock_irqrestore(&bp->lock, flags);
-
- error = sx_setup_port(bp, port);
- if (error) {
- func_enter();
- return error;
- }
-
- error = block_til_ready(tty, filp, port);
- if (error) {
- func_enter();
- return error;
- }
-
- func_exit();
- return 0;
-}
-
-static void sx_flush_buffer(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- unsigned long flags;
- struct specialix_board *bp;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_flush_buffer")) {
- func_exit();
- return;
- }
-
- bp = port_Board(port);
- spin_lock_irqsave(&port->lock, flags);
- port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
- spin_unlock_irqrestore(&port->lock, flags);
- tty_wakeup(tty);
-
- func_exit();
-}
-
-static void sx_close(struct tty_struct *tty, struct file *filp)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned long flags;
- unsigned long timeout;
-
- func_enter();
- if (!port || sx_paranoia_check(port, tty->name, "close")) {
- func_exit();
- return;
- }
- spin_lock_irqsave(&port->lock, flags);
-
- if (tty_hung_up_p(filp)) {
- spin_unlock_irqrestore(&port->lock, flags);
- func_exit();
- return;
- }
-
- bp = port_Board(port);
- if (tty->count == 1 && port->port.count != 1) {
- printk(KERN_ERR "sx%d: sx_close: bad port count;"
- " tty->count is 1, port count is %d\n",
- board_No(bp), port->port.count);
- port->port.count = 1;
- }
-
- if (port->port.count > 1) {
- port->port.count--;
- bp->count--;
-
- spin_unlock_irqrestore(&port->lock, flags);
-
- func_exit();
- return;
- }
- port->port.flags |= ASYNC_CLOSING;
- /*
- * Now we wait for the transmit buffer to clear; and we notify
- * the line discipline to only process XON/XOFF characters.
- */
- tty->closing = 1;
- spin_unlock_irqrestore(&port->lock, flags);
- dprintk(SX_DEBUG_OPEN, "Closing\n");
- if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
- tty_wait_until_sent(tty, port->port.closing_wait);
- /*
- * At this point we stop accepting input. To do this, we
- * disable the receive line status interrupts, and tell the
- * interrupt driver to stop checking the data ready bit in the
- * line status register.
- */
- dprintk(SX_DEBUG_OPEN, "Closed\n");
- port->IER &= ~IER_RXD;
- if (port->port.flags & ASYNC_INITIALIZED) {
- port->IER &= ~IER_TXRDY;
- port->IER |= IER_TXEMPTY;
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CAR, port_No(port));
- sx_out(bp, CD186x_IER, port->IER);
- spin_unlock_irqrestore(&bp->lock, flags);
- /*
- * Before we drop DTR, make sure the UART transmitter
- * has completely drained; this is especially
- * important if there is a transmit FIFO!
- */
- timeout = jiffies+HZ;
- while (port->IER & IER_TXEMPTY) {
- set_current_state(TASK_INTERRUPTIBLE);
- msleep_interruptible(jiffies_to_msecs(port->timeout));
- if (time_after(jiffies, timeout)) {
- printk(KERN_INFO "Timeout waiting for close\n");
- break;
- }
- }
-
- }
-
- if (--bp->count < 0) {
- printk(KERN_ERR
- "sx%d: sx_shutdown_port: bad board count: %d port: %d\n",
- board_No(bp), bp->count, tty->index);
- bp->count = 0;
- }
- if (--port->port.count < 0) {
- printk(KERN_ERR
- "sx%d: sx_close: bad port count for tty%d: %d\n",
- board_No(bp), port_No(port), port->port.count);
- port->port.count = 0;
- }
-
- sx_shutdown_port(bp, port);
- sx_flush_buffer(tty);
- tty_ldisc_flush(tty);
- spin_lock_irqsave(&port->lock, flags);
- tty->closing = 0;
- port->port.tty = NULL;
- spin_unlock_irqrestore(&port->lock, flags);
- if (port->port.blocked_open) {
- if (port->port.close_delay)
- msleep_interruptible(
- jiffies_to_msecs(port->port.close_delay));
- wake_up_interruptible(&port->port.open_wait);
- }
- port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
- wake_up_interruptible(&port->port.close_wait);
-
- func_exit();
-}
-
-
-static int sx_write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- int c, total = 0;
- unsigned long flags;
-
- func_enter();
- if (sx_paranoia_check(port, tty->name, "sx_write")) {
- func_exit();
- return 0;
- }
-
- bp = port_Board(port);
-
- if (!port->xmit_buf) {
- func_exit();
- return 0;
- }
-
- while (1) {
- spin_lock_irqsave(&port->lock, flags);
- c = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - port->xmit_head));
- if (c <= 0) {
- spin_unlock_irqrestore(&port->lock, flags);
- break;
- }
- memcpy(port->xmit_buf + port->xmit_head, buf, c);
- port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
- port->xmit_cnt += c;
- spin_unlock_irqrestore(&port->lock, flags);
-
- buf += c;
- count -= c;
- total += c;
- }
-
- spin_lock_irqsave(&bp->lock, flags);
- if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
- !(port->IER & IER_TXRDY)) {
- port->IER |= IER_TXRDY;
- sx_out(bp, CD186x_CAR, port_No(port));
- sx_out(bp, CD186x_IER, port->IER);
- }
- spin_unlock_irqrestore(&bp->lock, flags);
- func_exit();
-
- return total;
-}
-
-
-static int sx_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct specialix_port *port = tty->driver_data;
- unsigned long flags;
- struct specialix_board *bp;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_put_char")) {
- func_exit();
- return 0;
- }
- dprintk(SX_DEBUG_TX, "check tty: %p %p\n", tty, port->xmit_buf);
- if (!port->xmit_buf) {
- func_exit();
- return 0;
- }
- bp = port_Board(port);
- spin_lock_irqsave(&port->lock, flags);
-
- dprintk(SX_DEBUG_TX, "xmit_cnt: %d xmit_buf: %p\n",
- port->xmit_cnt, port->xmit_buf);
- if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1 || !port->xmit_buf) {
- spin_unlock_irqrestore(&port->lock, flags);
- dprintk(SX_DEBUG_TX, "Exit size\n");
- func_exit();
- return 0;
- }
- dprintk(SX_DEBUG_TX, "Handle xmit: %p %p\n", port, port->xmit_buf);
- port->xmit_buf[port->xmit_head++] = ch;
- port->xmit_head &= SERIAL_XMIT_SIZE - 1;
- port->xmit_cnt++;
- spin_unlock_irqrestore(&port->lock, flags);
-
- func_exit();
- return 1;
-}
-
-
-static void sx_flush_chars(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- unsigned long flags;
- struct specialix_board *bp = port_Board(port);
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_flush_chars")) {
- func_exit();
- return;
- }
- if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !port->xmit_buf) {
- func_exit();
- return;
- }
- spin_lock_irqsave(&bp->lock, flags);
- port->IER |= IER_TXRDY;
- sx_out(port_Board(port), CD186x_CAR, port_No(port));
- sx_out(port_Board(port), CD186x_IER, port->IER);
- spin_unlock_irqrestore(&bp->lock, flags);
-
- func_exit();
-}
-
-
-static int sx_write_room(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- int ret;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_write_room")) {
- func_exit();
- return 0;
- }
-
- ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
-
- func_exit();
- return ret;
-}
-
-
-static int sx_chars_in_buffer(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_chars_in_buffer")) {
- func_exit();
- return 0;
- }
- func_exit();
- return port->xmit_cnt;
-}
-
-static int sx_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned char status;
- unsigned int result;
- unsigned long flags;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, __func__)) {
- func_exit();
- return -ENODEV;
- }
-
- bp = port_Board(port);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CAR, port_No(port));
- status = sx_in(bp, CD186x_MSVR);
- spin_unlock_irqrestore(&bp->lock, flags);
- dprintk(SX_DEBUG_INIT, "Got msvr[%d] = %02x, car = %d.\n",
- port_No(port), status, sx_in(bp, CD186x_CAR));
- dprintk(SX_DEBUG_INIT, "sx_port = %p, port = %p\n", sx_port, port);
- if (sx_crtscts(port->port.tty)) {
- result = TIOCM_DTR | TIOCM_DSR
- | ((status & MSVR_DTR) ? TIOCM_RTS : 0)
- | ((status & MSVR_CD) ? TIOCM_CAR : 0)
- | ((status & MSVR_CTS) ? TIOCM_CTS : 0);
- } else {
- result = TIOCM_RTS | TIOCM_DSR
- | ((status & MSVR_DTR) ? TIOCM_DTR : 0)
- | ((status & MSVR_CD) ? TIOCM_CAR : 0)
- | ((status & MSVR_CTS) ? TIOCM_CTS : 0);
- }
-
- func_exit();
-
- return result;
-}
-
-
-static int sx_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct specialix_port *port = tty->driver_data;
- unsigned long flags;
- struct specialix_board *bp;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, __func__)) {
- func_exit();
- return -ENODEV;
- }
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&port->lock, flags);
- if (sx_crtscts(port->port.tty)) {
- if (set & TIOCM_RTS)
- port->MSVR |= MSVR_DTR;
- } else {
- if (set & TIOCM_DTR)
- port->MSVR |= MSVR_DTR;
- }
- if (sx_crtscts(port->port.tty)) {
- if (clear & TIOCM_RTS)
- port->MSVR &= ~MSVR_DTR;
- } else {
- if (clear & TIOCM_DTR)
- port->MSVR &= ~MSVR_DTR;
- }
- spin_lock(&bp->lock);
- sx_out(bp, CD186x_CAR, port_No(port));
- sx_out(bp, CD186x_MSVR, port->MSVR);
- spin_unlock(&bp->lock);
- spin_unlock_irqrestore(&port->lock, flags);
- func_exit();
- return 0;
-}
-
-
-static int sx_send_break(struct tty_struct *tty, int length)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp = port_Board(port);
- unsigned long flags;
-
- func_enter();
- if (length == 0 || length == -1)
- return -EOPNOTSUPP;
-
- spin_lock_irqsave(&port->lock, flags);
- port->break_length = SPECIALIX_TPS / HZ * length;
- port->COR2 |= COR2_ETC;
- port->IER |= IER_TXRDY;
- spin_lock(&bp->lock);
- sx_out(bp, CD186x_CAR, port_No(port));
- sx_out(bp, CD186x_COR2, port->COR2);
- sx_out(bp, CD186x_IER, port->IER);
- spin_unlock(&bp->lock);
- spin_unlock_irqrestore(&port->lock, flags);
- sx_wait_CCR(bp);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CCR, CCR_CORCHG2);
- spin_unlock_irqrestore(&bp->lock, flags);
- sx_wait_CCR(bp);
-
- func_exit();
- return 0;
-}
-
-
-static int sx_set_serial_info(struct specialix_port *port,
- struct serial_struct __user *newinfo)
-{
- struct serial_struct tmp;
- struct specialix_board *bp = port_Board(port);
- int change_speed;
-
- func_enter();
-
- if (copy_from_user(&tmp, newinfo, sizeof(tmp))) {
- func_enter();
- return -EFAULT;
- }
-
- mutex_lock(&port->port.mutex);
- change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
- (tmp.flags & ASYNC_SPD_MASK));
- change_speed |= (tmp.custom_divisor != port->custom_divisor);
-
- if (!capable(CAP_SYS_ADMIN)) {
- if ((tmp.close_delay != port->port.close_delay) ||
- (tmp.closing_wait != port->port.closing_wait) ||
- ((tmp.flags & ~ASYNC_USR_MASK) !=
- (port->port.flags & ~ASYNC_USR_MASK))) {
- func_exit();
- mutex_unlock(&port->port.mutex);
- return -EPERM;
- }
- port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
- (tmp.flags & ASYNC_USR_MASK));
- port->custom_divisor = tmp.custom_divisor;
- } else {
- port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
- (tmp.flags & ASYNC_FLAGS));
- port->port.close_delay = tmp.close_delay;
- port->port.closing_wait = tmp.closing_wait;
- port->custom_divisor = tmp.custom_divisor;
- }
- if (change_speed)
- sx_change_speed(bp, port);
-
- func_exit();
- mutex_unlock(&port->port.mutex);
- return 0;
-}
-
-
-static int sx_get_serial_info(struct specialix_port *port,
- struct serial_struct __user *retinfo)
-{
- struct serial_struct tmp;
- struct specialix_board *bp = port_Board(port);
-
- func_enter();
-
- memset(&tmp, 0, sizeof(tmp));
- mutex_lock(&port->port.mutex);
- tmp.type = PORT_CIRRUS;
- tmp.line = port - sx_port;
- tmp.port = bp->base;
- tmp.irq = bp->irq;
- tmp.flags = port->port.flags;
- tmp.baud_base = (SX_OSCFREQ + CD186x_TPC/2) / CD186x_TPC;
- tmp.close_delay = port->port.close_delay * HZ/100;
- tmp.closing_wait = port->port.closing_wait * HZ/100;
- tmp.custom_divisor = port->custom_divisor;
- tmp.xmit_fifo_size = CD186x_NFIFO;
- mutex_unlock(&port->port.mutex);
- if (copy_to_user(retinfo, &tmp, sizeof(tmp))) {
- func_exit();
- return -EFAULT;
- }
-
- func_exit();
- return 0;
-}
-
-
-static int sx_ioctl(struct tty_struct *tty, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- struct specialix_port *port = tty->driver_data;
- void __user *argp = (void __user *)arg;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_ioctl")) {
- func_exit();
- return -ENODEV;
- }
-
- switch (cmd) {
- case TIOCGSERIAL:
- func_exit();
- return sx_get_serial_info(port, argp);
- case TIOCSSERIAL:
- func_exit();
- return sx_set_serial_info(port, argp);
- default:
- func_exit();
- return -ENOIOCTLCMD;
- }
- func_exit();
- return 0;
-}
-
-
-static void sx_throttle(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned long flags;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_throttle")) {
- func_exit();
- return;
- }
-
- bp = port_Board(port);
-
- /* Use DTR instead of RTS ! */
- if (sx_crtscts(tty))
- port->MSVR &= ~MSVR_DTR;
- else {
- /* Auch!!! I think the system shouldn't call this then. */
- /* Or maybe we're supposed (allowed?) to do our side of hw
- handshake anyway, even when hardware handshake is off.
- When you see this in your logs, please report.... */
- printk(KERN_ERR
- "sx%d: Need to throttle, but can't (hardware hs is off)\n",
- port_No(port));
- }
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CAR, port_No(port));
- spin_unlock_irqrestore(&bp->lock, flags);
- if (I_IXOFF(tty)) {
- sx_wait_CCR(bp);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CCR, CCR_SSCH2);
- spin_unlock_irqrestore(&bp->lock, flags);
- sx_wait_CCR(bp);
- }
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_MSVR, port->MSVR);
- spin_unlock_irqrestore(&bp->lock, flags);
-
- func_exit();
-}
-
-
-static void sx_unthrottle(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned long flags;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_unthrottle")) {
- func_exit();
- return;
- }
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&port->lock, flags);
- /* XXXX Use DTR INSTEAD???? */
- if (sx_crtscts(tty))
- port->MSVR |= MSVR_DTR;
- /* Else clause: see remark in "sx_throttle"... */
- spin_lock(&bp->lock);
- sx_out(bp, CD186x_CAR, port_No(port));
- spin_unlock(&bp->lock);
- if (I_IXOFF(tty)) {
- spin_unlock_irqrestore(&port->lock, flags);
- sx_wait_CCR(bp);
- spin_lock_irqsave(&bp->lock, flags);
- sx_out(bp, CD186x_CCR, CCR_SSCH1);
- spin_unlock_irqrestore(&bp->lock, flags);
- sx_wait_CCR(bp);
- spin_lock_irqsave(&port->lock, flags);
- }
- spin_lock(&bp->lock);
- sx_out(bp, CD186x_MSVR, port->MSVR);
- spin_unlock(&bp->lock);
- spin_unlock_irqrestore(&port->lock, flags);
-
- func_exit();
-}
-
-
-static void sx_stop(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned long flags;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_stop")) {
- func_exit();
- return;
- }
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&port->lock, flags);
- port->IER &= ~IER_TXRDY;
- spin_lock(&bp->lock);
- sx_out(bp, CD186x_CAR, port_No(port));
- sx_out(bp, CD186x_IER, port->IER);
- spin_unlock(&bp->lock);
- spin_unlock_irqrestore(&port->lock, flags);
-
- func_exit();
-}
-
-
-static void sx_start(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned long flags;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_start")) {
- func_exit();
- return;
- }
-
- bp = port_Board(port);
-
- spin_lock_irqsave(&port->lock, flags);
- if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) {
- port->IER |= IER_TXRDY;
- spin_lock(&bp->lock);
- sx_out(bp, CD186x_CAR, port_No(port));
- sx_out(bp, CD186x_IER, port->IER);
- spin_unlock(&bp->lock);
- }
- spin_unlock_irqrestore(&port->lock, flags);
-
- func_exit();
-}
-
-static void sx_hangup(struct tty_struct *tty)
-{
- struct specialix_port *port = tty->driver_data;
- struct specialix_board *bp;
- unsigned long flags;
-
- func_enter();
-
- if (sx_paranoia_check(port, tty->name, "sx_hangup")) {
- func_exit();
- return;
- }
-
- bp = port_Board(port);
-
- sx_shutdown_port(bp, port);
- spin_lock_irqsave(&port->lock, flags);
- bp->count -= port->port.count;
- if (bp->count < 0) {
- printk(KERN_ERR
- "sx%d: sx_hangup: bad board count: %d port: %d\n",
- board_No(bp), bp->count, tty->index);
- bp->count = 0;
- }
- port->port.count = 0;
- port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
- port->port.tty = NULL;
- spin_unlock_irqrestore(&port->lock, flags);
- wake_up_interruptible(&port->port.open_wait);
-
- func_exit();
-}
-
-
-static void sx_set_termios(struct tty_struct *tty,
- struct ktermios *old_termios)
-{
- struct specialix_port *port = tty->driver_data;
- unsigned long flags;
- struct specialix_board *bp;
-
- if (sx_paranoia_check(port, tty->name, "sx_set_termios"))
- return;
-
- bp = port_Board(port);
- spin_lock_irqsave(&port->lock, flags);
- sx_change_speed(port_Board(port), port);
- spin_unlock_irqrestore(&port->lock, flags);
-
- if ((old_termios->c_cflag & CRTSCTS) &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- sx_start(tty);
- }
-}
-
-static const struct tty_operations sx_ops = {
- .open = sx_open,
- .close = sx_close,
- .write = sx_write,
- .put_char = sx_put_char,
- .flush_chars = sx_flush_chars,
- .write_room = sx_write_room,
- .chars_in_buffer = sx_chars_in_buffer,
- .flush_buffer = sx_flush_buffer,
- .ioctl = sx_ioctl,
- .throttle = sx_throttle,
- .unthrottle = sx_unthrottle,
- .set_termios = sx_set_termios,
- .stop = sx_stop,
- .start = sx_start,
- .hangup = sx_hangup,
- .tiocmget = sx_tiocmget,
- .tiocmset = sx_tiocmset,
- .break_ctl = sx_send_break,
-};
-
-static int sx_init_drivers(void)
-{
- int error;
- int i;
-
- func_enter();
-
- specialix_driver = alloc_tty_driver(SX_NBOARD * SX_NPORT);
- if (!specialix_driver) {
- printk(KERN_ERR "sx: Couldn't allocate tty_driver.\n");
- func_exit();
- return 1;
- }
-
- specialix_driver->owner = THIS_MODULE;
- specialix_driver->name = "ttyW";
- specialix_driver->major = SPECIALIX_NORMAL_MAJOR;
- specialix_driver->type = TTY_DRIVER_TYPE_SERIAL;
- specialix_driver->subtype = SERIAL_TYPE_NORMAL;
- specialix_driver->init_termios = tty_std_termios;
- specialix_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- specialix_driver->init_termios.c_ispeed = 9600;
- specialix_driver->init_termios.c_ospeed = 9600;
- specialix_driver->flags = TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_HARDWARE_BREAK;
- tty_set_operations(specialix_driver, &sx_ops);
-
- error = tty_register_driver(specialix_driver);
- if (error) {
- put_tty_driver(specialix_driver);
- printk(KERN_ERR
- "sx: Couldn't register specialix IO8+ driver, error = %d\n",
- error);
- func_exit();
- return 1;
- }
- memset(sx_port, 0, sizeof(sx_port));
- for (i = 0; i < SX_NPORT * SX_NBOARD; i++) {
- sx_port[i].magic = SPECIALIX_MAGIC;
- tty_port_init(&sx_port[i].port);
- spin_lock_init(&sx_port[i].lock);
- }
-
- func_exit();
- return 0;
-}
-
-static void sx_release_drivers(void)
-{
- func_enter();
-
- tty_unregister_driver(specialix_driver);
- put_tty_driver(specialix_driver);
- func_exit();
-}
-
-/*
- * This routine must be called by kernel at boot time
- */
-static int __init specialix_init(void)
-{
- int i;
- int found = 0;
-
- func_enter();
-
- printk(KERN_INFO "sx: Specialix IO8+ driver v" VERSION ", (c) R.E.Wolff 1997/1998.\n");
- printk(KERN_INFO "sx: derived from work (c) D.Gorodchanin 1994-1996.\n");
- if (sx_rtscts)
- printk(KERN_INFO
- "sx: DTR/RTS pin is RTS when CRTSCTS is on.\n");
- else
- printk(KERN_INFO "sx: DTR/RTS pin is always RTS.\n");
-
- for (i = 0; i < SX_NBOARD; i++)
- spin_lock_init(&sx_board[i].lock);
-
- if (sx_init_drivers()) {
- func_exit();
- return -EIO;
- }
-
- for (i = 0; i < SX_NBOARD; i++)
- if (sx_board[i].base && !sx_probe(&sx_board[i]))
- found++;
-
-#ifdef CONFIG_PCI
- {
- struct pci_dev *pdev = NULL;
-
- i = 0;
- while (i < SX_NBOARD) {
- if (sx_board[i].flags & SX_BOARD_PRESENT) {
- i++;
- continue;
- }
- pdev = pci_get_device(PCI_VENDOR_ID_SPECIALIX,
- PCI_DEVICE_ID_SPECIALIX_IO8, pdev);
- if (!pdev)
- break;
-
- if (pci_enable_device(pdev))
- continue;
-
- sx_board[i].irq = pdev->irq;
-
- sx_board[i].base = pci_resource_start(pdev, 2);
-
- sx_board[i].flags |= SX_BOARD_IS_PCI;
- if (!sx_probe(&sx_board[i]))
- found++;
- }
- /* May exit pci_get sequence early with lots of boards */
- if (pdev != NULL)
- pci_dev_put(pdev);
- }
-#endif
-
- if (!found) {
- sx_release_drivers();
- printk(KERN_INFO "sx: No specialix IO8+ boards detected.\n");
- func_exit();
- return -EIO;
- }
-
- func_exit();
- return 0;
-}
-
-static int iobase[SX_NBOARD] = {0,};
-static int irq[SX_NBOARD] = {0,};
-
-module_param_array(iobase, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param(sx_debug, int, 0);
-module_param(sx_rtscts, int, 0);
-module_param(sx_rxfifo, int, 0);
-
-/*
- * You can setup up to 4 boards.
- * by specifying "iobase=0xXXX,0xXXX ..." as insmod parameter.
- * You should specify the IRQs too in that case "irq=....,...".
- *
- * More than 4 boards in one computer is not possible, as the card can
- * only use 4 different interrupts.
- *
- */
-static int __init specialix_init_module(void)
-{
- int i;
-
- func_enter();
-
- if (iobase[0] || iobase[1] || iobase[2] || iobase[3]) {
- for (i = 0; i < SX_NBOARD; i++) {
- sx_board[i].base = iobase[i];
- sx_board[i].irq = irq[i];
- sx_board[i].count = 0;
- }
- }
-
- func_exit();
-
- return specialix_init();
-}
-
-static void __exit specialix_exit_module(void)
-{
- int i;
-
- func_enter();
-
- sx_release_drivers();
- for (i = 0; i < SX_NBOARD; i++)
- if (sx_board[i].flags & SX_BOARD_PRESENT)
- sx_release_io_range(&sx_board[i]);
- func_exit();
-}
-
-static struct pci_device_id specialx_pci_tbl[] __devinitdata __used = {
- { PCI_DEVICE(PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_IO8) },
- { }
-};
-MODULE_DEVICE_TABLE(pci, specialx_pci_tbl);
-
-module_init(specialix_init_module);
-module_exit(specialix_exit_module);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV_MAJOR(SPECIALIX_NORMAL_MAJOR);
diff --git a/drivers/char/specialix_io8.h b/drivers/char/specialix_io8.h
deleted file mode 100644
index c63005274d9..00000000000
--- a/drivers/char/specialix_io8.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * linux/drivers/char/specialix_io8.h --
- * Specialix IO8+ multiport serial driver.
- *
- * Copyright (C) 1997 Roger Wolff (R.E.Wolff@BitWizard.nl)
- * Copyright (C) 1994-1996 Dmitry Gorodchanin (pgmdsg@ibi.com)
- *
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact io8-linux@specialix.co.uk if you require
- * support.
- *
- * This driver was developped in the BitWizard linux device
- * driver service. If you require a linux device driver for your
- * product, please contact devices@BitWizard.nl for a quote.
- *
- * This code is firmly based on the riscom/8 serial driver,
- * written by Dmitry Gorodchanin. The specialix IO8+ card
- * programming information was obtained from the CL-CD1865 Data
- * Book, and Specialix document number 6200059: IO8+ Hardware
- * Functional Specification.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- * */
-
-#ifndef __LINUX_SPECIALIX_H
-#define __LINUX_SPECIALIX_H
-
-#include <linux/serial.h>
-
-#ifdef __KERNEL__
-
-/* You can have max 4 ISA cards in one PC, and I recommend not much
-more than a few PCI versions of the card. */
-
-#define SX_NBOARD 8
-
-/* NOTE: Specialix decoder recognizes 4 addresses, but only two are used.... */
-#define SX_IO_SPACE 4
-/* The PCI version decodes 8 addresses, but still only 2 are used. */
-#define SX_PCI_IO_SPACE 8
-
-/* eight ports per board. */
-#define SX_NPORT 8
-#define SX_BOARD(line) ((line) / SX_NPORT)
-#define SX_PORT(line) ((line) & (SX_NPORT - 1))
-
-
-#define SX_DATA_REG 0 /* Base+0 : Data register */
-#define SX_ADDR_REG 1 /* base+1 : Address register. */
-
-#define MHz *1000000 /* I'm ashamed of myself. */
-
-/* On-board oscillator frequency */
-#define SX_OSCFREQ (25 MHz/2)
-/* There is a 25MHz crystal on the board, but the chip is in /2 mode */
-
-
-/* Ticks per sec. Used for setting receiver timeout and break length */
-#define SPECIALIX_TPS 4000
-
-/* Yeah, after heavy testing I decided it must be 6.
- * Sure, You can change it if needed.
- */
-#define SPECIALIX_RXFIFO 6 /* Max. receiver FIFO size (1-8) */
-
-#define SPECIALIX_MAGIC 0x0907
-
-#define SX_CCR_TIMEOUT 10000 /* CCR timeout. You may need to wait upto
- 10 milliseconds before the internal
- processor is available again after
- you give it a command */
-
-#define SX_IOBASE1 0x100
-#define SX_IOBASE2 0x180
-#define SX_IOBASE3 0x250
-#define SX_IOBASE4 0x260
-
-struct specialix_board {
- unsigned long flags;
- unsigned short base;
- unsigned char irq;
- //signed char count;
- int count;
- unsigned char DTR;
- int reg;
- spinlock_t lock;
-};
-
-#define SX_BOARD_PRESENT 0x00000001
-#define SX_BOARD_ACTIVE 0x00000002
-#define SX_BOARD_IS_PCI 0x00000004
-
-
-struct specialix_port {
- int magic;
- struct tty_port port;
- int baud_base;
- int flags;
- int timeout;
- unsigned char * xmit_buf;
- int custom_divisor;
- int xmit_head;
- int xmit_tail;
- int xmit_cnt;
- short wakeup_chars;
- short break_length;
- unsigned char mark_mask;
- unsigned char IER;
- unsigned char MSVR;
- unsigned char COR2;
- unsigned long overrun;
- unsigned long hits[10];
- spinlock_t lock;
-};
-
-#endif /* __KERNEL__ */
-#endif /* __LINUX_SPECIALIX_H */
-
-
-
-
-
-
-
-
-
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
deleted file mode 100644
index 461a5a04551..00000000000
--- a/drivers/char/stallion.c
+++ /dev/null
@@ -1,4652 +0,0 @@
-/*****************************************************************************/
-
-/*
- * stallion.c -- stallion multiport serial driver.
- *
- * Copyright (C) 1996-1999 Stallion Technologies
- * Copyright (C) 1994-1996 Greg Ungerer.
- *
- * This code is loosely based on the Linux serial driver, written by
- * Linus Torvalds, Theodore T'so and others.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/*****************************************************************************/
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/seq_file.h>
-#include <linux/cd1400.h>
-#include <linux/sc26198.h>
-#include <linux/comstats.h>
-#include <linux/stallion.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include <linux/pci.h>
-
-/*****************************************************************************/
-
-/*
- * Define different board types. Use the standard Stallion "assigned"
- * board numbers. Boards supported in this driver are abbreviated as
- * EIO = EasyIO and ECH = EasyConnection 8/32.
- */
-#define BRD_EASYIO 20
-#define BRD_ECH 21
-#define BRD_ECHMC 22
-#define BRD_ECHPCI 26
-#define BRD_ECH64PCI 27
-#define BRD_EASYIOPCI 28
-
-struct stlconf {
- unsigned int brdtype;
- int ioaddr1;
- int ioaddr2;
- unsigned long memaddr;
- int irq;
- int irqtype;
-};
-
-static unsigned int stl_nrbrds;
-
-/*****************************************************************************/
-
-/*
- * Define some important driver characteristics. Device major numbers
- * allocated as per Linux Device Registry.
- */
-#ifndef STL_SIOMEMMAJOR
-#define STL_SIOMEMMAJOR 28
-#endif
-#ifndef STL_SERIALMAJOR
-#define STL_SERIALMAJOR 24
-#endif
-#ifndef STL_CALLOUTMAJOR
-#define STL_CALLOUTMAJOR 25
-#endif
-
-/*
- * Set the TX buffer size. Bigger is better, but we don't want
- * to chew too much memory with buffers!
- */
-#define STL_TXBUFLOW 512
-#define STL_TXBUFSIZE 4096
-
-/*****************************************************************************/
-
-/*
- * Define our local driver identity first. Set up stuff to deal with
- * all the local structures required by a serial tty driver.
- */
-static char *stl_drvtitle = "Stallion Multiport Serial Driver";
-static char *stl_drvname = "stallion";
-static char *stl_drvversion = "5.6.0";
-
-static struct tty_driver *stl_serial;
-
-/*
- * Define a local default termios struct. All ports will be created
- * with this termios initially. Basically all it defines is a raw port
- * at 9600, 8 data bits, 1 stop bit.
- */
-static struct ktermios stl_deftermios = {
- .c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL),
- .c_cc = INIT_C_CC,
- .c_ispeed = 9600,
- .c_ospeed = 9600,
-};
-
-/*
- * Define global place to put buffer overflow characters.
- */
-static char stl_unwanted[SC26198_RXFIFOSIZE];
-
-/*****************************************************************************/
-
-static DEFINE_MUTEX(stl_brdslock);
-static struct stlbrd *stl_brds[STL_MAXBRDS];
-
-static const struct tty_port_operations stl_port_ops;
-
-/*
- * Per board state flags. Used with the state field of the board struct.
- * Not really much here!
- */
-#define BRD_FOUND 0x1
-#define STL_PROBED 0x2
-
-
-/*
- * Define the port structure istate flags. These set of flags are
- * modified at interrupt time - so setting and reseting them needs
- * to be atomic. Use the bit clear/setting routines for this.
- */
-#define ASYI_TXBUSY 1
-#define ASYI_TXLOW 2
-#define ASYI_TXFLOWED 3
-
-/*
- * Define an array of board names as printable strings. Handy for
- * referencing boards when printing trace and stuff.
- */
-static char *stl_brdnames[] = {
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- "EasyIO",
- "EC8/32-AT",
- "EC8/32-MC",
- NULL,
- NULL,
- NULL,
- "EC8/32-PCI",
- "EC8/64-PCI",
- "EasyIO-PCI",
-};
-
-/*****************************************************************************/
-
-/*
- * Define some string labels for arguments passed from the module
- * load line. These allow for easy board definitions, and easy
- * modification of the io, memory and irq resoucres.
- */
-static unsigned int stl_nargs;
-static char *board0[4];
-static char *board1[4];
-static char *board2[4];
-static char *board3[4];
-
-static char **stl_brdsp[] = {
- (char **) &board0,
- (char **) &board1,
- (char **) &board2,
- (char **) &board3
-};
-
-/*
- * Define a set of common board names, and types. This is used to
- * parse any module arguments.
- */
-
-static struct {
- char *name;
- int type;
-} stl_brdstr[] = {
- { "easyio", BRD_EASYIO },
- { "eio", BRD_EASYIO },
- { "20", BRD_EASYIO },
- { "ec8/32", BRD_ECH },
- { "ec8/32-at", BRD_ECH },
- { "ec8/32-isa", BRD_ECH },
- { "ech", BRD_ECH },
- { "echat", BRD_ECH },
- { "21", BRD_ECH },
- { "ec8/32-mc", BRD_ECHMC },
- { "ec8/32-mca", BRD_ECHMC },
- { "echmc", BRD_ECHMC },
- { "echmca", BRD_ECHMC },
- { "22", BRD_ECHMC },
- { "ec8/32-pc", BRD_ECHPCI },
- { "ec8/32-pci", BRD_ECHPCI },
- { "26", BRD_ECHPCI },
- { "ec8/64-pc", BRD_ECH64PCI },
- { "ec8/64-pci", BRD_ECH64PCI },
- { "ech-pci", BRD_ECH64PCI },
- { "echpci", BRD_ECH64PCI },
- { "echpc", BRD_ECH64PCI },
- { "27", BRD_ECH64PCI },
- { "easyio-pc", BRD_EASYIOPCI },
- { "easyio-pci", BRD_EASYIOPCI },
- { "eio-pci", BRD_EASYIOPCI },
- { "eiopci", BRD_EASYIOPCI },
- { "28", BRD_EASYIOPCI },
-};
-
-/*
- * Define the module agruments.
- */
-
-module_param_array(board0, charp, &stl_nargs, 0);
-MODULE_PARM_DESC(board0, "Board 0 config -> name[,ioaddr[,ioaddr2][,irq]]");
-module_param_array(board1, charp, &stl_nargs, 0);
-MODULE_PARM_DESC(board1, "Board 1 config -> name[,ioaddr[,ioaddr2][,irq]]");
-module_param_array(board2, charp, &stl_nargs, 0);
-MODULE_PARM_DESC(board2, "Board 2 config -> name[,ioaddr[,ioaddr2][,irq]]");
-module_param_array(board3, charp, &stl_nargs, 0);
-MODULE_PARM_DESC(board3, "Board 3 config -> name[,ioaddr[,ioaddr2][,irq]]");
-
-/*****************************************************************************/
-
-/*
- * Hardware ID bits for the EasyIO and ECH boards. These defines apply
- * to the directly accessible io ports of these boards (not the uarts -
- * they are in cd1400.h and sc26198.h).
- */
-#define EIO_8PORTRS 0x04
-#define EIO_4PORTRS 0x05
-#define EIO_8PORTDI 0x00
-#define EIO_8PORTM 0x06
-#define EIO_MK3 0x03
-#define EIO_IDBITMASK 0x07
-
-#define EIO_BRDMASK 0xf0
-#define ID_BRD4 0x10
-#define ID_BRD8 0x20
-#define ID_BRD16 0x30
-
-#define EIO_INTRPEND 0x08
-#define EIO_INTEDGE 0x00
-#define EIO_INTLEVEL 0x08
-#define EIO_0WS 0x10
-
-#define ECH_ID 0xa0
-#define ECH_IDBITMASK 0xe0
-#define ECH_BRDENABLE 0x08
-#define ECH_BRDDISABLE 0x00
-#define ECH_INTENABLE 0x01
-#define ECH_INTDISABLE 0x00
-#define ECH_INTLEVEL 0x02
-#define ECH_INTEDGE 0x00
-#define ECH_INTRPEND 0x01
-#define ECH_BRDRESET 0x01
-
-#define ECHMC_INTENABLE 0x01
-#define ECHMC_BRDRESET 0x02
-
-#define ECH_PNLSTATUS 2
-#define ECH_PNL16PORT 0x20
-#define ECH_PNLIDMASK 0x07
-#define ECH_PNLXPID 0x40
-#define ECH_PNLINTRPEND 0x80
-
-#define ECH_ADDR2MASK 0x1e0
-
-/*
- * Define the vector mapping bits for the programmable interrupt board
- * hardware. These bits encode the interrupt for the board to use - it
- * is software selectable (except the EIO-8M).
- */
-static unsigned char stl_vecmap[] = {
- 0xff, 0xff, 0xff, 0x04, 0x06, 0x05, 0xff, 0x07,
- 0xff, 0xff, 0x00, 0x02, 0x01, 0xff, 0xff, 0x03
-};
-
-/*
- * Lock ordering is that you may not take stallion_lock holding
- * brd_lock.
- */
-
-static spinlock_t brd_lock; /* Guard the board mapping */
-static spinlock_t stallion_lock; /* Guard the tty driver */
-
-/*
- * Set up enable and disable macros for the ECH boards. They require
- * the secondary io address space to be activated and deactivated.
- * This way all ECH boards can share their secondary io region.
- * If this is an ECH-PCI board then also need to set the page pointer
- * to point to the correct page.
- */
-#define BRDENABLE(brdnr,pagenr) \
- if (stl_brds[(brdnr)]->brdtype == BRD_ECH) \
- outb((stl_brds[(brdnr)]->ioctrlval | ECH_BRDENABLE), \
- stl_brds[(brdnr)]->ioctrl); \
- else if (stl_brds[(brdnr)]->brdtype == BRD_ECHPCI) \
- outb((pagenr), stl_brds[(brdnr)]->ioctrl);
-
-#define BRDDISABLE(brdnr) \
- if (stl_brds[(brdnr)]->brdtype == BRD_ECH) \
- outb((stl_brds[(brdnr)]->ioctrlval | ECH_BRDDISABLE), \
- stl_brds[(brdnr)]->ioctrl);
-
-#define STL_CD1400MAXBAUD 230400
-#define STL_SC26198MAXBAUD 460800
-
-#define STL_BAUDBASE 115200
-#define STL_CLOSEDELAY (5 * HZ / 10)
-
-/*****************************************************************************/
-
-/*
- * Define the Stallion PCI vendor and device IDs.
- */
-#ifndef PCI_VENDOR_ID_STALLION
-#define PCI_VENDOR_ID_STALLION 0x124d
-#endif
-#ifndef PCI_DEVICE_ID_ECHPCI832
-#define PCI_DEVICE_ID_ECHPCI832 0x0000
-#endif
-#ifndef PCI_DEVICE_ID_ECHPCI864
-#define PCI_DEVICE_ID_ECHPCI864 0x0002
-#endif
-#ifndef PCI_DEVICE_ID_EIOPCI
-#define PCI_DEVICE_ID_EIOPCI 0x0003
-#endif
-
-/*
- * Define structure to hold all Stallion PCI boards.
- */
-
-static struct pci_device_id stl_pcibrds[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECHPCI864),
- .driver_data = BRD_ECH64PCI },
- { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_EIOPCI),
- .driver_data = BRD_EASYIOPCI },
- { PCI_DEVICE(PCI_VENDOR_ID_STALLION, PCI_DEVICE_ID_ECHPCI832),
- .driver_data = BRD_ECHPCI },
- { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410),
- .driver_data = BRD_ECHPCI },
- { }
-};
-MODULE_DEVICE_TABLE(pci, stl_pcibrds);
-
-/*****************************************************************************/
-
-/*
- * Define macros to extract a brd/port number from a minor number.
- */
-#define MINOR2BRD(min) (((min) & 0xc0) >> 6)
-#define MINOR2PORT(min) ((min) & 0x3f)
-
-/*
- * Define a baud rate table that converts termios baud rate selector
- * into the actual baud rate value. All baud rate calculations are
- * based on the actual baud rate required.
- */
-static unsigned int stl_baudrates[] = {
- 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
- 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600
-};
-
-/*****************************************************************************/
-
-/*
- * Declare all those functions in this driver!
- */
-
-static long stl_memioctl(struct file *fp, unsigned int cmd, unsigned long arg);
-static int stl_brdinit(struct stlbrd *brdp);
-static int stl_getportstats(struct tty_struct *tty, struct stlport *portp, comstats_t __user *cp);
-static int stl_clrportstats(struct stlport *portp, comstats_t __user *cp);
-
-/*
- * CD1400 uart specific handling functions.
- */
-static void stl_cd1400setreg(struct stlport *portp, int regnr, int value);
-static int stl_cd1400getreg(struct stlport *portp, int regnr);
-static int stl_cd1400updatereg(struct stlport *portp, int regnr, int value);
-static int stl_cd1400panelinit(struct stlbrd *brdp, struct stlpanel *panelp);
-static void stl_cd1400portinit(struct stlbrd *brdp, struct stlpanel *panelp, struct stlport *portp);
-static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp);
-static int stl_cd1400getsignals(struct stlport *portp);
-static void stl_cd1400setsignals(struct stlport *portp, int dtr, int rts);
-static void stl_cd1400ccrwait(struct stlport *portp);
-static void stl_cd1400enablerxtx(struct stlport *portp, int rx, int tx);
-static void stl_cd1400startrxtx(struct stlport *portp, int rx, int tx);
-static void stl_cd1400disableintrs(struct stlport *portp);
-static void stl_cd1400sendbreak(struct stlport *portp, int len);
-static void stl_cd1400flowctrl(struct stlport *portp, int state);
-static void stl_cd1400sendflow(struct stlport *portp, int state);
-static void stl_cd1400flush(struct stlport *portp);
-static int stl_cd1400datastate(struct stlport *portp);
-static void stl_cd1400eiointr(struct stlpanel *panelp, unsigned int iobase);
-static void stl_cd1400echintr(struct stlpanel *panelp, unsigned int iobase);
-static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr);
-static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr);
-static void stl_cd1400mdmisr(struct stlpanel *panelp, int ioaddr);
-
-static inline int stl_cd1400breakisr(struct stlport *portp, int ioaddr);
-
-/*
- * SC26198 uart specific handling functions.
- */
-static void stl_sc26198setreg(struct stlport *portp, int regnr, int value);
-static int stl_sc26198getreg(struct stlport *portp, int regnr);
-static int stl_sc26198updatereg(struct stlport *portp, int regnr, int value);
-static int stl_sc26198getglobreg(struct stlport *portp, int regnr);
-static int stl_sc26198panelinit(struct stlbrd *brdp, struct stlpanel *panelp);
-static void stl_sc26198portinit(struct stlbrd *brdp, struct stlpanel *panelp, struct stlport *portp);
-static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp);
-static int stl_sc26198getsignals(struct stlport *portp);
-static void stl_sc26198setsignals(struct stlport *portp, int dtr, int rts);
-static void stl_sc26198enablerxtx(struct stlport *portp, int rx, int tx);
-static void stl_sc26198startrxtx(struct stlport *portp, int rx, int tx);
-static void stl_sc26198disableintrs(struct stlport *portp);
-static void stl_sc26198sendbreak(struct stlport *portp, int len);
-static void stl_sc26198flowctrl(struct stlport *portp, int state);
-static void stl_sc26198sendflow(struct stlport *portp, int state);
-static void stl_sc26198flush(struct stlport *portp);
-static int stl_sc26198datastate(struct stlport *portp);
-static void stl_sc26198wait(struct stlport *portp);
-static void stl_sc26198txunflow(struct stlport *portp, struct tty_struct *tty);
-static void stl_sc26198intr(struct stlpanel *panelp, unsigned int iobase);
-static void stl_sc26198txisr(struct stlport *port);
-static void stl_sc26198rxisr(struct stlport *port, unsigned int iack);
-static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char ch);
-static void stl_sc26198rxbadchars(struct stlport *portp);
-static void stl_sc26198otherisr(struct stlport *port, unsigned int iack);
-
-/*****************************************************************************/
-
-/*
- * Generic UART support structure.
- */
-typedef struct uart {
- int (*panelinit)(struct stlbrd *brdp, struct stlpanel *panelp);
- void (*portinit)(struct stlbrd *brdp, struct stlpanel *panelp, struct stlport *portp);
- void (*setport)(struct stlport *portp, struct ktermios *tiosp);
- int (*getsignals)(struct stlport *portp);
- void (*setsignals)(struct stlport *portp, int dtr, int rts);
- void (*enablerxtx)(struct stlport *portp, int rx, int tx);
- void (*startrxtx)(struct stlport *portp, int rx, int tx);
- void (*disableintrs)(struct stlport *portp);
- void (*sendbreak)(struct stlport *portp, int len);
- void (*flowctrl)(struct stlport *portp, int state);
- void (*sendflow)(struct stlport *portp, int state);
- void (*flush)(struct stlport *portp);
- int (*datastate)(struct stlport *portp);
- void (*intr)(struct stlpanel *panelp, unsigned int iobase);
-} uart_t;
-
-/*
- * Define some macros to make calling these functions nice and clean.
- */
-#define stl_panelinit (* ((uart_t *) panelp->uartp)->panelinit)
-#define stl_portinit (* ((uart_t *) portp->uartp)->portinit)
-#define stl_setport (* ((uart_t *) portp->uartp)->setport)
-#define stl_getsignals (* ((uart_t *) portp->uartp)->getsignals)
-#define stl_setsignals (* ((uart_t *) portp->uartp)->setsignals)
-#define stl_enablerxtx (* ((uart_t *) portp->uartp)->enablerxtx)
-#define stl_startrxtx (* ((uart_t *) portp->uartp)->startrxtx)
-#define stl_disableintrs (* ((uart_t *) portp->uartp)->disableintrs)
-#define stl_sendbreak (* ((uart_t *) portp->uartp)->sendbreak)
-#define stl_flowctrl (* ((uart_t *) portp->uartp)->flowctrl)
-#define stl_sendflow (* ((uart_t *) portp->uartp)->sendflow)
-#define stl_flush (* ((uart_t *) portp->uartp)->flush)
-#define stl_datastate (* ((uart_t *) portp->uartp)->datastate)
-
-/*****************************************************************************/
-
-/*
- * CD1400 UART specific data initialization.
- */
-static uart_t stl_cd1400uart = {
- stl_cd1400panelinit,
- stl_cd1400portinit,
- stl_cd1400setport,
- stl_cd1400getsignals,
- stl_cd1400setsignals,
- stl_cd1400enablerxtx,
- stl_cd1400startrxtx,
- stl_cd1400disableintrs,
- stl_cd1400sendbreak,
- stl_cd1400flowctrl,
- stl_cd1400sendflow,
- stl_cd1400flush,
- stl_cd1400datastate,
- stl_cd1400eiointr
-};
-
-/*
- * Define the offsets within the register bank of a cd1400 based panel.
- * These io address offsets are common to the EasyIO board as well.
- */
-#define EREG_ADDR 0
-#define EREG_DATA 4
-#define EREG_RXACK 5
-#define EREG_TXACK 6
-#define EREG_MDACK 7
-
-#define EREG_BANKSIZE 8
-
-#define CD1400_CLK 25000000
-#define CD1400_CLK8M 20000000
-
-/*
- * Define the cd1400 baud rate clocks. These are used when calculating
- * what clock and divisor to use for the required baud rate. Also
- * define the maximum baud rate allowed, and the default base baud.
- */
-static int stl_cd1400clkdivs[] = {
- CD1400_CLK0, CD1400_CLK1, CD1400_CLK2, CD1400_CLK3, CD1400_CLK4
-};
-
-/*****************************************************************************/
-
-/*
- * SC26198 UART specific data initization.
- */
-static uart_t stl_sc26198uart = {
- stl_sc26198panelinit,
- stl_sc26198portinit,
- stl_sc26198setport,
- stl_sc26198getsignals,
- stl_sc26198setsignals,
- stl_sc26198enablerxtx,
- stl_sc26198startrxtx,
- stl_sc26198disableintrs,
- stl_sc26198sendbreak,
- stl_sc26198flowctrl,
- stl_sc26198sendflow,
- stl_sc26198flush,
- stl_sc26198datastate,
- stl_sc26198intr
-};
-
-/*
- * Define the offsets within the register bank of a sc26198 based panel.
- */
-#define XP_DATA 0
-#define XP_ADDR 1
-#define XP_MODID 2
-#define XP_STATUS 2
-#define XP_IACK 3
-
-#define XP_BANKSIZE 4
-
-/*
- * Define the sc26198 baud rate table. Offsets within the table
- * represent the actual baud rate selector of sc26198 registers.
- */
-static unsigned int sc26198_baudtable[] = {
- 50, 75, 150, 200, 300, 450, 600, 900, 1200, 1800, 2400, 3600,
- 4800, 7200, 9600, 14400, 19200, 28800, 38400, 57600, 115200,
- 230400, 460800, 921600
-};
-
-#define SC26198_NRBAUDS ARRAY_SIZE(sc26198_baudtable)
-
-/*****************************************************************************/
-
-/*
- * Define the driver info for a user level control device. Used mainly
- * to get at port stats - only not using the port device itself.
- */
-static const struct file_operations stl_fsiomem = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = stl_memioctl,
- .llseek = noop_llseek,
-};
-
-static struct class *stallion_class;
-
-static void stl_cd_change(struct stlport *portp)
-{
- unsigned int oldsigs = portp->sigs;
- struct tty_struct *tty = tty_port_tty_get(&portp->port);
-
- if (!tty)
- return;
-
- portp->sigs = stl_getsignals(portp);
-
- if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0))
- wake_up_interruptible(&portp->port.open_wait);
-
- if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0))
- if (portp->port.flags & ASYNC_CHECK_CD)
- tty_hangup(tty);
- tty_kref_put(tty);
-}
-
-/*
- * Check for any arguments passed in on the module load command line.
- */
-
-/*****************************************************************************/
-
-/*
- * Parse the supplied argument string, into the board conf struct.
- */
-
-static int __init stl_parsebrd(struct stlconf *confp, char **argp)
-{
- char *sp;
- unsigned int i;
-
- pr_debug("stl_parsebrd(confp=%p,argp=%p)\n", confp, argp);
-
- if ((argp[0] == NULL) || (*argp[0] == 0))
- return 0;
-
- for (sp = argp[0], i = 0; (*sp != 0) && (i < 25); sp++, i++)
- *sp = tolower(*sp);
-
- for (i = 0; i < ARRAY_SIZE(stl_brdstr); i++)
- if (strcmp(stl_brdstr[i].name, argp[0]) == 0)
- break;
-
- if (i == ARRAY_SIZE(stl_brdstr)) {
- printk("STALLION: unknown board name, %s?\n", argp[0]);
- return 0;
- }
-
- confp->brdtype = stl_brdstr[i].type;
-
- i = 1;
- if ((argp[i] != NULL) && (*argp[i] != 0))
- confp->ioaddr1 = simple_strtoul(argp[i], NULL, 0);
- i++;
- if (confp->brdtype == BRD_ECH) {
- if ((argp[i] != NULL) && (*argp[i] != 0))
- confp->ioaddr2 = simple_strtoul(argp[i], NULL, 0);
- i++;
- }
- if ((argp[i] != NULL) && (*argp[i] != 0))
- confp->irq = simple_strtoul(argp[i], NULL, 0);
- return 1;
-}
-
-/*****************************************************************************/
-
-/*
- * Allocate a new board structure. Fill out the basic info in it.
- */
-
-static struct stlbrd *stl_allocbrd(void)
-{
- struct stlbrd *brdp;
-
- brdp = kzalloc(sizeof(struct stlbrd), GFP_KERNEL);
- if (!brdp) {
- printk("STALLION: failed to allocate memory (size=%Zd)\n",
- sizeof(struct stlbrd));
- return NULL;
- }
-
- brdp->magic = STL_BOARDMAGIC;
- return brdp;
-}
-
-/*****************************************************************************/
-
-static int stl_activate(struct tty_port *port, struct tty_struct *tty)
-{
- struct stlport *portp = container_of(port, struct stlport, port);
- if (!portp->tx.buf) {
- portp->tx.buf = kmalloc(STL_TXBUFSIZE, GFP_KERNEL);
- if (!portp->tx.buf)
- return -ENOMEM;
- portp->tx.head = portp->tx.buf;
- portp->tx.tail = portp->tx.buf;
- }
- stl_setport(portp, tty->termios);
- portp->sigs = stl_getsignals(portp);
- stl_setsignals(portp, 1, 1);
- stl_enablerxtx(portp, 1, 1);
- stl_startrxtx(portp, 1, 0);
- return 0;
-}
-
-static int stl_open(struct tty_struct *tty, struct file *filp)
-{
- struct stlport *portp;
- struct stlbrd *brdp;
- unsigned int minordev, brdnr, panelnr;
- int portnr;
-
- pr_debug("stl_open(tty=%p,filp=%p): device=%s\n", tty, filp, tty->name);
-
- minordev = tty->index;
- brdnr = MINOR2BRD(minordev);
- if (brdnr >= stl_nrbrds)
- return -ENODEV;
- brdp = stl_brds[brdnr];
- if (brdp == NULL)
- return -ENODEV;
-
- minordev = MINOR2PORT(minordev);
- for (portnr = -1, panelnr = 0; panelnr < STL_MAXPANELS; panelnr++) {
- if (brdp->panels[panelnr] == NULL)
- break;
- if (minordev < brdp->panels[panelnr]->nrports) {
- portnr = minordev;
- break;
- }
- minordev -= brdp->panels[panelnr]->nrports;
- }
- if (portnr < 0)
- return -ENODEV;
-
- portp = brdp->panels[panelnr]->ports[portnr];
- if (portp == NULL)
- return -ENODEV;
-
- tty->driver_data = portp;
- return tty_port_open(&portp->port, tty, filp);
-
-}
-
-/*****************************************************************************/
-
-static int stl_carrier_raised(struct tty_port *port)
-{
- struct stlport *portp = container_of(port, struct stlport, port);
- return (portp->sigs & TIOCM_CD) ? 1 : 0;
-}
-
-static void stl_dtr_rts(struct tty_port *port, int on)
-{
- struct stlport *portp = container_of(port, struct stlport, port);
- /* Takes brd_lock internally */
- stl_setsignals(portp, on, on);
-}
-
-/*****************************************************************************/
-
-static void stl_flushbuffer(struct tty_struct *tty)
-{
- struct stlport *portp;
-
- pr_debug("stl_flushbuffer(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
-
- stl_flush(portp);
- tty_wakeup(tty);
-}
-
-/*****************************************************************************/
-
-static void stl_waituntilsent(struct tty_struct *tty, int timeout)
-{
- struct stlport *portp;
- unsigned long tend;
-
- pr_debug("stl_waituntilsent(tty=%p,timeout=%d)\n", tty, timeout);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
-
- if (timeout == 0)
- timeout = HZ;
- tend = jiffies + timeout;
-
- while (stl_datastate(portp)) {
- if (signal_pending(current))
- break;
- msleep_interruptible(20);
- if (time_after_eq(jiffies, tend))
- break;
- }
-}
-
-/*****************************************************************************/
-
-static void stl_shutdown(struct tty_port *port)
-{
- struct stlport *portp = container_of(port, struct stlport, port);
- stl_disableintrs(portp);
- stl_enablerxtx(portp, 0, 0);
- stl_flush(portp);
- portp->istate = 0;
- if (portp->tx.buf != NULL) {
- kfree(portp->tx.buf);
- portp->tx.buf = NULL;
- portp->tx.head = NULL;
- portp->tx.tail = NULL;
- }
-}
-
-static void stl_close(struct tty_struct *tty, struct file *filp)
-{
- struct stlport*portp;
- pr_debug("stl_close(tty=%p,filp=%p)\n", tty, filp);
-
- portp = tty->driver_data;
- if(portp == NULL)
- return;
- tty_port_close(&portp->port, tty, filp);
-}
-
-/*****************************************************************************/
-
-/*
- * Write routine. Take data and stuff it in to the TX ring queue.
- * If transmit interrupts are not running then start them.
- */
-
-static int stl_write(struct tty_struct *tty, const unsigned char *buf, int count)
-{
- struct stlport *portp;
- unsigned int len, stlen;
- unsigned char *chbuf;
- char *head, *tail;
-
- pr_debug("stl_write(tty=%p,buf=%p,count=%d)\n", tty, buf, count);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return 0;
- if (portp->tx.buf == NULL)
- return 0;
-
-/*
- * If copying direct from user space we must cater for page faults,
- * causing us to "sleep" here for a while. To handle this copy in all
- * the data we need now, into a local buffer. Then when we got it all
- * copy it into the TX buffer.
- */
- chbuf = (unsigned char *) buf;
-
- head = portp->tx.head;
- tail = portp->tx.tail;
- if (head >= tail) {
- len = STL_TXBUFSIZE - (head - tail) - 1;
- stlen = STL_TXBUFSIZE - (head - portp->tx.buf);
- } else {
- len = tail - head - 1;
- stlen = len;
- }
-
- len = min(len, (unsigned int)count);
- count = 0;
- while (len > 0) {
- stlen = min(len, stlen);
- memcpy(head, chbuf, stlen);
- len -= stlen;
- chbuf += stlen;
- count += stlen;
- head += stlen;
- if (head >= (portp->tx.buf + STL_TXBUFSIZE)) {
- head = portp->tx.buf;
- stlen = tail - head;
- }
- }
- portp->tx.head = head;
-
- clear_bit(ASYI_TXLOW, &portp->istate);
- stl_startrxtx(portp, -1, 1);
-
- return count;
-}
-
-/*****************************************************************************/
-
-static int stl_putchar(struct tty_struct *tty, unsigned char ch)
-{
- struct stlport *portp;
- unsigned int len;
- char *head, *tail;
-
- pr_debug("stl_putchar(tty=%p,ch=%x)\n", tty, ch);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -EINVAL;
- if (portp->tx.buf == NULL)
- return -EINVAL;
-
- head = portp->tx.head;
- tail = portp->tx.tail;
-
- len = (head >= tail) ? (STL_TXBUFSIZE - (head - tail)) : (tail - head);
- len--;
-
- if (len > 0) {
- *head++ = ch;
- if (head >= (portp->tx.buf + STL_TXBUFSIZE))
- head = portp->tx.buf;
- }
- portp->tx.head = head;
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * If there are any characters in the buffer then make sure that TX
- * interrupts are on and get'em out. Normally used after the putchar
- * routine has been called.
- */
-
-static void stl_flushchars(struct tty_struct *tty)
-{
- struct stlport *portp;
-
- pr_debug("stl_flushchars(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- if (portp->tx.buf == NULL)
- return;
-
- stl_startrxtx(portp, -1, 1);
-}
-
-/*****************************************************************************/
-
-static int stl_writeroom(struct tty_struct *tty)
-{
- struct stlport *portp;
- char *head, *tail;
-
- pr_debug("stl_writeroom(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return 0;
- if (portp->tx.buf == NULL)
- return 0;
-
- head = portp->tx.head;
- tail = portp->tx.tail;
- return (head >= tail) ? (STL_TXBUFSIZE - (head - tail) - 1) : (tail - head - 1);
-}
-
-/*****************************************************************************/
-
-/*
- * Return number of chars in the TX buffer. Normally we would just
- * calculate the number of chars in the buffer and return that, but if
- * the buffer is empty and TX interrupts are still on then we return
- * that the buffer still has 1 char in it. This way whoever called us
- * will not think that ALL chars have drained - since the UART still
- * must have some chars in it (we are busy after all).
- */
-
-static int stl_charsinbuffer(struct tty_struct *tty)
-{
- struct stlport *portp;
- unsigned int size;
- char *head, *tail;
-
- pr_debug("stl_charsinbuffer(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return 0;
- if (portp->tx.buf == NULL)
- return 0;
-
- head = portp->tx.head;
- tail = portp->tx.tail;
- size = (head >= tail) ? (head - tail) : (STL_TXBUFSIZE - (tail - head));
- if ((size == 0) && test_bit(ASYI_TXBUSY, &portp->istate))
- size = 1;
- return size;
-}
-
-/*****************************************************************************/
-
-/*
- * Generate the serial struct info.
- */
-
-static int stl_getserial(struct stlport *portp, struct serial_struct __user *sp)
-{
- struct serial_struct sio;
- struct stlbrd *brdp;
-
- pr_debug("stl_getserial(portp=%p,sp=%p)\n", portp, sp);
-
- memset(&sio, 0, sizeof(struct serial_struct));
-
- mutex_lock(&portp->port.mutex);
- sio.line = portp->portnr;
- sio.port = portp->ioaddr;
- sio.flags = portp->port.flags;
- sio.baud_base = portp->baud_base;
- sio.close_delay = portp->close_delay;
- sio.closing_wait = portp->closing_wait;
- sio.custom_divisor = portp->custom_divisor;
- sio.hub6 = 0;
- if (portp->uartp == &stl_cd1400uart) {
- sio.type = PORT_CIRRUS;
- sio.xmit_fifo_size = CD1400_TXFIFOSIZE;
- } else {
- sio.type = PORT_UNKNOWN;
- sio.xmit_fifo_size = SC26198_TXFIFOSIZE;
- }
-
- brdp = stl_brds[portp->brdnr];
- if (brdp != NULL)
- sio.irq = brdp->irq;
- mutex_unlock(&portp->port.mutex);
-
- return copy_to_user(sp, &sio, sizeof(struct serial_struct)) ? -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Set port according to the serial struct info.
- * At this point we do not do any auto-configure stuff, so we will
- * just quietly ignore any requests to change irq, etc.
- */
-
-static int stl_setserial(struct tty_struct *tty, struct serial_struct __user *sp)
-{
- struct stlport * portp = tty->driver_data;
- struct serial_struct sio;
-
- pr_debug("stl_setserial(portp=%p,sp=%p)\n", portp, sp);
-
- if (copy_from_user(&sio, sp, sizeof(struct serial_struct)))
- return -EFAULT;
- mutex_lock(&portp->port.mutex);
- if (!capable(CAP_SYS_ADMIN)) {
- if ((sio.baud_base != portp->baud_base) ||
- (sio.close_delay != portp->close_delay) ||
- ((sio.flags & ~ASYNC_USR_MASK) !=
- (portp->port.flags & ~ASYNC_USR_MASK))) {
- mutex_unlock(&portp->port.mutex);
- return -EPERM;
- }
- }
-
- portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) |
- (sio.flags & ASYNC_USR_MASK);
- portp->baud_base = sio.baud_base;
- portp->close_delay = sio.close_delay;
- portp->closing_wait = sio.closing_wait;
- portp->custom_divisor = sio.custom_divisor;
- mutex_unlock(&portp->port.mutex);
- stl_setport(portp, tty->termios);
- return 0;
-}
-
-/*****************************************************************************/
-
-static int stl_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct stlport *portp;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -ENODEV;
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- return stl_getsignals(portp);
-}
-
-static int stl_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct stlport *portp;
- int rts = -1, dtr = -1;
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -ENODEV;
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- if (set & TIOCM_RTS)
- rts = 1;
- if (set & TIOCM_DTR)
- dtr = 1;
- if (clear & TIOCM_RTS)
- rts = 0;
- if (clear & TIOCM_DTR)
- dtr = 0;
-
- stl_setsignals(portp, dtr, rts);
- return 0;
-}
-
-static int stl_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg)
-{
- struct stlport *portp;
- int rc;
- void __user *argp = (void __user *)arg;
-
- pr_debug("stl_ioctl(tty=%p,file=%p,cmd=%x,arg=%lx)\n", tty, file, cmd,
- arg);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -ENODEV;
-
- if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
- (cmd != COM_GETPORTSTATS) && (cmd != COM_CLRPORTSTATS))
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
-
- rc = 0;
-
- switch (cmd) {
- case TIOCGSERIAL:
- rc = stl_getserial(portp, argp);
- break;
- case TIOCSSERIAL:
- rc = stl_setserial(tty, argp);
- break;
- case COM_GETPORTSTATS:
- rc = stl_getportstats(tty, portp, argp);
- break;
- case COM_CLRPORTSTATS:
- rc = stl_clrportstats(portp, argp);
- break;
- case TIOCSERCONFIG:
- case TIOCSERGWILD:
- case TIOCSERSWILD:
- case TIOCSERGETLSR:
- case TIOCSERGSTRUCT:
- case TIOCSERGETMULTI:
- case TIOCSERSETMULTI:
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- return rc;
-}
-
-/*****************************************************************************/
-
-/*
- * Start the transmitter again. Just turn TX interrupts back on.
- */
-
-static void stl_start(struct tty_struct *tty)
-{
- struct stlport *portp;
-
- pr_debug("stl_start(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- stl_startrxtx(portp, -1, 1);
-}
-
-/*****************************************************************************/
-
-static void stl_settermios(struct tty_struct *tty, struct ktermios *old)
-{
- struct stlport *portp;
- struct ktermios *tiosp;
-
- pr_debug("stl_settermios(tty=%p,old=%p)\n", tty, old);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
-
- tiosp = tty->termios;
- if ((tiosp->c_cflag == old->c_cflag) &&
- (tiosp->c_iflag == old->c_iflag))
- return;
-
- stl_setport(portp, tiosp);
- stl_setsignals(portp, ((tiosp->c_cflag & (CBAUD & ~CBAUDEX)) ? 1 : 0),
- -1);
- if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0)) {
- tty->hw_stopped = 0;
- stl_start(tty);
- }
- if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
- wake_up_interruptible(&portp->port.open_wait);
-}
-
-/*****************************************************************************/
-
-/*
- * Attempt to flow control who ever is sending us data. Based on termios
- * settings use software or/and hardware flow control.
- */
-
-static void stl_throttle(struct tty_struct *tty)
-{
- struct stlport *portp;
-
- pr_debug("stl_throttle(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- stl_flowctrl(portp, 0);
-}
-
-/*****************************************************************************/
-
-/*
- * Unflow control the device sending us data...
- */
-
-static void stl_unthrottle(struct tty_struct *tty)
-{
- struct stlport *portp;
-
- pr_debug("stl_unthrottle(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- stl_flowctrl(portp, 1);
-}
-
-/*****************************************************************************/
-
-/*
- * Stop the transmitter. Basically to do this we will just turn TX
- * interrupts off.
- */
-
-static void stl_stop(struct tty_struct *tty)
-{
- struct stlport *portp;
-
- pr_debug("stl_stop(tty=%p)\n", tty);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
- stl_startrxtx(portp, -1, 0);
-}
-
-/*****************************************************************************/
-
-/*
- * Hangup this port. This is pretty much like closing the port, only
- * a little more brutal. No waiting for data to drain. Shutdown the
- * port and maybe drop signals.
- */
-
-static void stl_hangup(struct tty_struct *tty)
-{
- struct stlport *portp = tty->driver_data;
- pr_debug("stl_hangup(tty=%p)\n", tty);
-
- if (portp == NULL)
- return;
- tty_port_hangup(&portp->port);
-}
-
-/*****************************************************************************/
-
-static int stl_breakctl(struct tty_struct *tty, int state)
-{
- struct stlport *portp;
-
- pr_debug("stl_breakctl(tty=%p,state=%d)\n", tty, state);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return -EINVAL;
-
- stl_sendbreak(portp, ((state == -1) ? 1 : 2));
- return 0;
-}
-
-/*****************************************************************************/
-
-static void stl_sendxchar(struct tty_struct *tty, char ch)
-{
- struct stlport *portp;
-
- pr_debug("stl_sendxchar(tty=%p,ch=%x)\n", tty, ch);
-
- portp = tty->driver_data;
- if (portp == NULL)
- return;
-
- if (ch == STOP_CHAR(tty))
- stl_sendflow(portp, 0);
- else if (ch == START_CHAR(tty))
- stl_sendflow(portp, 1);
- else
- stl_putchar(tty, ch);
-}
-
-static void stl_portinfo(struct seq_file *m, struct stlport *portp, int portnr)
-{
- int sigs;
- char sep;
-
- seq_printf(m, "%d: uart:%s tx:%d rx:%d",
- portnr, (portp->hwid == 1) ? "SC26198" : "CD1400",
- (int) portp->stats.txtotal, (int) portp->stats.rxtotal);
-
- if (portp->stats.rxframing)
- seq_printf(m, " fe:%d", (int) portp->stats.rxframing);
- if (portp->stats.rxparity)
- seq_printf(m, " pe:%d", (int) portp->stats.rxparity);
- if (portp->stats.rxbreaks)
- seq_printf(m, " brk:%d", (int) portp->stats.rxbreaks);
- if (portp->stats.rxoverrun)
- seq_printf(m, " oe:%d", (int) portp->stats.rxoverrun);
-
- sigs = stl_getsignals(portp);
- sep = ' ';
- if (sigs & TIOCM_RTS) {
- seq_printf(m, "%c%s", sep, "RTS");
- sep = '|';
- }
- if (sigs & TIOCM_CTS) {
- seq_printf(m, "%c%s", sep, "CTS");
- sep = '|';
- }
- if (sigs & TIOCM_DTR) {
- seq_printf(m, "%c%s", sep, "DTR");
- sep = '|';
- }
- if (sigs & TIOCM_CD) {
- seq_printf(m, "%c%s", sep, "DCD");
- sep = '|';
- }
- if (sigs & TIOCM_DSR) {
- seq_printf(m, "%c%s", sep, "DSR");
- sep = '|';
- }
- seq_putc(m, '\n');
-}
-
-/*****************************************************************************/
-
-/*
- * Port info, read from the /proc file system.
- */
-
-static int stl_proc_show(struct seq_file *m, void *v)
-{
- struct stlbrd *brdp;
- struct stlpanel *panelp;
- struct stlport *portp;
- unsigned int brdnr, panelnr, portnr;
- int totalport;
-
- totalport = 0;
-
- seq_printf(m, "%s: version %s\n", stl_drvtitle, stl_drvversion);
-
-/*
- * We scan through for each board, panel and port. The offset is
- * calculated on the fly, and irrelevant ports are skipped.
- */
- for (brdnr = 0; brdnr < stl_nrbrds; brdnr++) {
- brdp = stl_brds[brdnr];
- if (brdp == NULL)
- continue;
- if (brdp->state == 0)
- continue;
-
- totalport = brdnr * STL_MAXPORTS;
- for (panelnr = 0; panelnr < brdp->nrpanels; panelnr++) {
- panelp = brdp->panels[panelnr];
- if (panelp == NULL)
- continue;
-
- for (portnr = 0; portnr < panelp->nrports; portnr++,
- totalport++) {
- portp = panelp->ports[portnr];
- if (portp == NULL)
- continue;
- stl_portinfo(m, portp, totalport);
- }
- }
- }
- return 0;
-}
-
-static int stl_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, stl_proc_show, NULL);
-}
-
-static const struct file_operations stl_proc_fops = {
- .owner = THIS_MODULE,
- .open = stl_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*****************************************************************************/
-
-/*
- * All board interrupts are vectored through here first. This code then
- * calls off to the approrpriate board interrupt handlers.
- */
-
-static irqreturn_t stl_intr(int irq, void *dev_id)
-{
- struct stlbrd *brdp = dev_id;
-
- pr_debug("stl_intr(brdp=%p,irq=%d)\n", brdp, brdp->irq);
-
- return IRQ_RETVAL((* brdp->isr)(brdp));
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for EasyIO board types.
- */
-
-static int stl_eiointr(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int iobase;
- int handled = 0;
-
- spin_lock(&brd_lock);
- panelp = brdp->panels[0];
- iobase = panelp->iobase;
- while (inb(brdp->iostatus) & EIO_INTRPEND) {
- handled = 1;
- (* panelp->isr)(panelp, iobase);
- }
- spin_unlock(&brd_lock);
- return handled;
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for ECH-AT board types.
- */
-
-static int stl_echatintr(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int ioaddr, bnknr;
- int handled = 0;
-
- outb((brdp->ioctrlval | ECH_BRDENABLE), brdp->ioctrl);
-
- while (inb(brdp->iostatus) & ECH_INTRPEND) {
- handled = 1;
- for (bnknr = 0; bnknr < brdp->nrbnks; bnknr++) {
- ioaddr = brdp->bnkstataddr[bnknr];
- if (inb(ioaddr) & ECH_PNLINTRPEND) {
- panelp = brdp->bnk2panel[bnknr];
- (* panelp->isr)(panelp, (ioaddr & 0xfffc));
- }
- }
- }
-
- outb((brdp->ioctrlval | ECH_BRDDISABLE), brdp->ioctrl);
-
- return handled;
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for ECH-MCA board types.
- */
-
-static int stl_echmcaintr(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int ioaddr, bnknr;
- int handled = 0;
-
- while (inb(brdp->iostatus) & ECH_INTRPEND) {
- handled = 1;
- for (bnknr = 0; bnknr < brdp->nrbnks; bnknr++) {
- ioaddr = brdp->bnkstataddr[bnknr];
- if (inb(ioaddr) & ECH_PNLINTRPEND) {
- panelp = brdp->bnk2panel[bnknr];
- (* panelp->isr)(panelp, (ioaddr & 0xfffc));
- }
- }
- }
- return handled;
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for ECH-PCI board types.
- */
-
-static int stl_echpciintr(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int ioaddr, bnknr, recheck;
- int handled = 0;
-
- while (1) {
- recheck = 0;
- for (bnknr = 0; bnknr < brdp->nrbnks; bnknr++) {
- outb(brdp->bnkpageaddr[bnknr], brdp->ioctrl);
- ioaddr = brdp->bnkstataddr[bnknr];
- if (inb(ioaddr) & ECH_PNLINTRPEND) {
- panelp = brdp->bnk2panel[bnknr];
- (* panelp->isr)(panelp, (ioaddr & 0xfffc));
- recheck++;
- handled = 1;
- }
- }
- if (! recheck)
- break;
- }
- return handled;
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for ECH-8/64-PCI board types.
- */
-
-static int stl_echpci64intr(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int ioaddr, bnknr;
- int handled = 0;
-
- while (inb(brdp->ioctrl) & 0x1) {
- handled = 1;
- for (bnknr = 0; bnknr < brdp->nrbnks; bnknr++) {
- ioaddr = brdp->bnkstataddr[bnknr];
- if (inb(ioaddr) & ECH_PNLINTRPEND) {
- panelp = brdp->bnk2panel[bnknr];
- (* panelp->isr)(panelp, (ioaddr & 0xfffc));
- }
- }
- }
-
- return handled;
-}
-
-/*****************************************************************************/
-
-/*
- * Initialize all the ports on a panel.
- */
-
-static int __devinit stl_initports(struct stlbrd *brdp, struct stlpanel *panelp)
-{
- struct stlport *portp;
- unsigned int i;
- int chipmask;
-
- pr_debug("stl_initports(brdp=%p,panelp=%p)\n", brdp, panelp);
-
- chipmask = stl_panelinit(brdp, panelp);
-
-/*
- * All UART's are initialized (if found!). Now go through and setup
- * each ports data structures.
- */
- for (i = 0; i < panelp->nrports; i++) {
- portp = kzalloc(sizeof(struct stlport), GFP_KERNEL);
- if (!portp) {
- printk("STALLION: failed to allocate memory "
- "(size=%Zd)\n", sizeof(struct stlport));
- break;
- }
- tty_port_init(&portp->port);
- portp->port.ops = &stl_port_ops;
- portp->magic = STL_PORTMAGIC;
- portp->portnr = i;
- portp->brdnr = panelp->brdnr;
- portp->panelnr = panelp->panelnr;
- portp->uartp = panelp->uartp;
- portp->clk = brdp->clk;
- portp->baud_base = STL_BAUDBASE;
- portp->close_delay = STL_CLOSEDELAY;
- portp->closing_wait = 30 * HZ;
- init_waitqueue_head(&portp->port.open_wait);
- init_waitqueue_head(&portp->port.close_wait);
- portp->stats.brd = portp->brdnr;
- portp->stats.panel = portp->panelnr;
- portp->stats.port = portp->portnr;
- panelp->ports[i] = portp;
- stl_portinit(brdp, panelp, portp);
- }
-
- return 0;
-}
-
-static void stl_cleanup_panels(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- struct stlport *portp;
- unsigned int j, k;
- struct tty_struct *tty;
-
- for (j = 0; j < STL_MAXPANELS; j++) {
- panelp = brdp->panels[j];
- if (panelp == NULL)
- continue;
- for (k = 0; k < STL_PORTSPERPANEL; k++) {
- portp = panelp->ports[k];
- if (portp == NULL)
- continue;
- tty = tty_port_tty_get(&portp->port);
- if (tty != NULL) {
- stl_hangup(tty);
- tty_kref_put(tty);
- }
- kfree(portp->tx.buf);
- kfree(portp);
- }
- kfree(panelp);
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Try to find and initialize an EasyIO board.
- */
-
-static int __devinit stl_initeio(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int status;
- char *name;
- int retval;
-
- pr_debug("stl_initeio(brdp=%p)\n", brdp);
-
- brdp->ioctrl = brdp->ioaddr1 + 1;
- brdp->iostatus = brdp->ioaddr1 + 2;
-
- status = inb(brdp->iostatus);
- if ((status & EIO_IDBITMASK) == EIO_MK3)
- brdp->ioctrl++;
-
-/*
- * Handle board specific stuff now. The real difference is PCI
- * or not PCI.
- */
- if (brdp->brdtype == BRD_EASYIOPCI) {
- brdp->iosize1 = 0x80;
- brdp->iosize2 = 0x80;
- name = "serial(EIO-PCI)";
- outb(0x41, (brdp->ioaddr2 + 0x4c));
- } else {
- brdp->iosize1 = 8;
- name = "serial(EIO)";
- if ((brdp->irq < 0) || (brdp->irq > 15) ||
- (stl_vecmap[brdp->irq] == (unsigned char) 0xff)) {
- printk("STALLION: invalid irq=%d for brd=%d\n",
- brdp->irq, brdp->brdnr);
- retval = -EINVAL;
- goto err;
- }
- outb((stl_vecmap[brdp->irq] | EIO_0WS |
- ((brdp->irqtype) ? EIO_INTLEVEL : EIO_INTEDGE)),
- brdp->ioctrl);
- }
-
- retval = -EBUSY;
- if (!request_region(brdp->ioaddr1, brdp->iosize1, name)) {
- printk(KERN_WARNING "STALLION: Warning, board %d I/O address "
- "%x conflicts with another device\n", brdp->brdnr,
- brdp->ioaddr1);
- goto err;
- }
-
- if (brdp->iosize2 > 0)
- if (!request_region(brdp->ioaddr2, brdp->iosize2, name)) {
- printk(KERN_WARNING "STALLION: Warning, board %d I/O "
- "address %x conflicts with another device\n",
- brdp->brdnr, brdp->ioaddr2);
- printk(KERN_WARNING "STALLION: Warning, also "
- "releasing board %d I/O address %x \n",
- brdp->brdnr, brdp->ioaddr1);
- goto err_rel1;
- }
-
-/*
- * Everything looks OK, so let's go ahead and probe for the hardware.
- */
- brdp->clk = CD1400_CLK;
- brdp->isr = stl_eiointr;
-
- retval = -ENODEV;
- switch (status & EIO_IDBITMASK) {
- case EIO_8PORTM:
- brdp->clk = CD1400_CLK8M;
- /* fall thru */
- case EIO_8PORTRS:
- case EIO_8PORTDI:
- brdp->nrports = 8;
- break;
- case EIO_4PORTRS:
- brdp->nrports = 4;
- break;
- case EIO_MK3:
- switch (status & EIO_BRDMASK) {
- case ID_BRD4:
- brdp->nrports = 4;
- break;
- case ID_BRD8:
- brdp->nrports = 8;
- break;
- case ID_BRD16:
- brdp->nrports = 16;
- break;
- default:
- goto err_rel2;
- }
- break;
- default:
- goto err_rel2;
- }
-
-/*
- * We have verified that the board is actually present, so now we
- * can complete the setup.
- */
-
- panelp = kzalloc(sizeof(struct stlpanel), GFP_KERNEL);
- if (!panelp) {
- printk(KERN_WARNING "STALLION: failed to allocate memory "
- "(size=%Zd)\n", sizeof(struct stlpanel));
- retval = -ENOMEM;
- goto err_rel2;
- }
-
- panelp->magic = STL_PANELMAGIC;
- panelp->brdnr = brdp->brdnr;
- panelp->panelnr = 0;
- panelp->nrports = brdp->nrports;
- panelp->iobase = brdp->ioaddr1;
- panelp->hwid = status;
- if ((status & EIO_IDBITMASK) == EIO_MK3) {
- panelp->uartp = &stl_sc26198uart;
- panelp->isr = stl_sc26198intr;
- } else {
- panelp->uartp = &stl_cd1400uart;
- panelp->isr = stl_cd1400eiointr;
- }
-
- brdp->panels[0] = panelp;
- brdp->nrpanels = 1;
- brdp->state |= BRD_FOUND;
- brdp->hwid = status;
- if (request_irq(brdp->irq, stl_intr, IRQF_SHARED, name, brdp) != 0) {
- printk("STALLION: failed to register interrupt "
- "routine for %s irq=%d\n", name, brdp->irq);
- retval = -ENODEV;
- goto err_fr;
- }
-
- return 0;
-err_fr:
- stl_cleanup_panels(brdp);
-err_rel2:
- if (brdp->iosize2 > 0)
- release_region(brdp->ioaddr2, brdp->iosize2);
-err_rel1:
- release_region(brdp->ioaddr1, brdp->iosize1);
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-/*
- * Try to find an ECH board and initialize it. This code is capable of
- * dealing with all types of ECH board.
- */
-
-static int __devinit stl_initech(struct stlbrd *brdp)
-{
- struct stlpanel *panelp;
- unsigned int status, nxtid, ioaddr, conflict, panelnr, banknr, i;
- int retval;
- char *name;
-
- pr_debug("stl_initech(brdp=%p)\n", brdp);
-
- status = 0;
- conflict = 0;
-
-/*
- * Set up the initial board register contents for boards. This varies a
- * bit between the different board types. So we need to handle each
- * separately. Also do a check that the supplied IRQ is good.
- */
- switch (brdp->brdtype) {
-
- case BRD_ECH:
- brdp->isr = stl_echatintr;
- brdp->ioctrl = brdp->ioaddr1 + 1;
- brdp->iostatus = brdp->ioaddr1 + 1;
- status = inb(brdp->iostatus);
- if ((status & ECH_IDBITMASK) != ECH_ID) {
- retval = -ENODEV;
- goto err;
- }
- if ((brdp->irq < 0) || (brdp->irq > 15) ||
- (stl_vecmap[brdp->irq] == (unsigned char) 0xff)) {
- printk("STALLION: invalid irq=%d for brd=%d\n",
- brdp->irq, brdp->brdnr);
- retval = -EINVAL;
- goto err;
- }
- status = ((brdp->ioaddr2 & ECH_ADDR2MASK) >> 1);
- status |= (stl_vecmap[brdp->irq] << 1);
- outb((status | ECH_BRDRESET), brdp->ioaddr1);
- brdp->ioctrlval = ECH_INTENABLE |
- ((brdp->irqtype) ? ECH_INTLEVEL : ECH_INTEDGE);
- for (i = 0; i < 10; i++)
- outb((brdp->ioctrlval | ECH_BRDENABLE), brdp->ioctrl);
- brdp->iosize1 = 2;
- brdp->iosize2 = 32;
- name = "serial(EC8/32)";
- outb(status, brdp->ioaddr1);
- break;
-
- case BRD_ECHMC:
- brdp->isr = stl_echmcaintr;
- brdp->ioctrl = brdp->ioaddr1 + 0x20;
- brdp->iostatus = brdp->ioctrl;
- status = inb(brdp->iostatus);
- if ((status & ECH_IDBITMASK) != ECH_ID) {
- retval = -ENODEV;
- goto err;
- }
- if ((brdp->irq < 0) || (brdp->irq > 15) ||
- (stl_vecmap[brdp->irq] == (unsigned char) 0xff)) {
- printk("STALLION: invalid irq=%d for brd=%d\n",
- brdp->irq, brdp->brdnr);
- retval = -EINVAL;
- goto err;
- }
- outb(ECHMC_BRDRESET, brdp->ioctrl);
- outb(ECHMC_INTENABLE, brdp->ioctrl);
- brdp->iosize1 = 64;
- name = "serial(EC8/32-MC)";
- break;
-
- case BRD_ECHPCI:
- brdp->isr = stl_echpciintr;
- brdp->ioctrl = brdp->ioaddr1 + 2;
- brdp->iosize1 = 4;
- brdp->iosize2 = 8;
- name = "serial(EC8/32-PCI)";
- break;
-
- case BRD_ECH64PCI:
- brdp->isr = stl_echpci64intr;
- brdp->ioctrl = brdp->ioaddr2 + 0x40;
- outb(0x43, (brdp->ioaddr1 + 0x4c));
- brdp->iosize1 = 0x80;
- brdp->iosize2 = 0x80;
- name = "serial(EC8/64-PCI)";
- break;
-
- default:
- printk("STALLION: unknown board type=%d\n", brdp->brdtype);
- retval = -EINVAL;
- goto err;
- }
-
-/*
- * Check boards for possible IO address conflicts and return fail status
- * if an IO conflict found.
- */
- retval = -EBUSY;
- if (!request_region(brdp->ioaddr1, brdp->iosize1, name)) {
- printk(KERN_WARNING "STALLION: Warning, board %d I/O address "
- "%x conflicts with another device\n", brdp->brdnr,
- brdp->ioaddr1);
- goto err;
- }
-
- if (brdp->iosize2 > 0)
- if (!request_region(brdp->ioaddr2, brdp->iosize2, name)) {
- printk(KERN_WARNING "STALLION: Warning, board %d I/O "
- "address %x conflicts with another device\n",
- brdp->brdnr, brdp->ioaddr2);
- printk(KERN_WARNING "STALLION: Warning, also "
- "releasing board %d I/O address %x \n",
- brdp->brdnr, brdp->ioaddr1);
- goto err_rel1;
- }
-
-/*
- * Scan through the secondary io address space looking for panels.
- * As we find'em allocate and initialize panel structures for each.
- */
- brdp->clk = CD1400_CLK;
- brdp->hwid = status;
-
- ioaddr = brdp->ioaddr2;
- banknr = 0;
- panelnr = 0;
- nxtid = 0;
-
- for (i = 0; i < STL_MAXPANELS; i++) {
- if (brdp->brdtype == BRD_ECHPCI) {
- outb(nxtid, brdp->ioctrl);
- ioaddr = brdp->ioaddr2;
- }
- status = inb(ioaddr + ECH_PNLSTATUS);
- if ((status & ECH_PNLIDMASK) != nxtid)
- break;
- panelp = kzalloc(sizeof(struct stlpanel), GFP_KERNEL);
- if (!panelp) {
- printk("STALLION: failed to allocate memory "
- "(size=%Zd)\n", sizeof(struct stlpanel));
- retval = -ENOMEM;
- goto err_fr;
- }
- panelp->magic = STL_PANELMAGIC;
- panelp->brdnr = brdp->brdnr;
- panelp->panelnr = panelnr;
- panelp->iobase = ioaddr;
- panelp->pagenr = nxtid;
- panelp->hwid = status;
- brdp->bnk2panel[banknr] = panelp;
- brdp->bnkpageaddr[banknr] = nxtid;
- brdp->bnkstataddr[banknr++] = ioaddr + ECH_PNLSTATUS;
-
- if (status & ECH_PNLXPID) {
- panelp->uartp = &stl_sc26198uart;
- panelp->isr = stl_sc26198intr;
- if (status & ECH_PNL16PORT) {
- panelp->nrports = 16;
- brdp->bnk2panel[banknr] = panelp;
- brdp->bnkpageaddr[banknr] = nxtid;
- brdp->bnkstataddr[banknr++] = ioaddr + 4 +
- ECH_PNLSTATUS;
- } else
- panelp->nrports = 8;
- } else {
- panelp->uartp = &stl_cd1400uart;
- panelp->isr = stl_cd1400echintr;
- if (status & ECH_PNL16PORT) {
- panelp->nrports = 16;
- panelp->ackmask = 0x80;
- if (brdp->brdtype != BRD_ECHPCI)
- ioaddr += EREG_BANKSIZE;
- brdp->bnk2panel[banknr] = panelp;
- brdp->bnkpageaddr[banknr] = ++nxtid;
- brdp->bnkstataddr[banknr++] = ioaddr +
- ECH_PNLSTATUS;
- } else {
- panelp->nrports = 8;
- panelp->ackmask = 0xc0;
- }
- }
-
- nxtid++;
- ioaddr += EREG_BANKSIZE;
- brdp->nrports += panelp->nrports;
- brdp->panels[panelnr++] = panelp;
- if ((brdp->brdtype != BRD_ECHPCI) &&
- (ioaddr >= (brdp->ioaddr2 + brdp->iosize2))) {
- retval = -EINVAL;
- goto err_fr;
- }
- }
-
- brdp->nrpanels = panelnr;
- brdp->nrbnks = banknr;
- if (brdp->brdtype == BRD_ECH)
- outb((brdp->ioctrlval | ECH_BRDDISABLE), brdp->ioctrl);
-
- brdp->state |= BRD_FOUND;
- if (request_irq(brdp->irq, stl_intr, IRQF_SHARED, name, brdp) != 0) {
- printk("STALLION: failed to register interrupt "
- "routine for %s irq=%d\n", name, brdp->irq);
- retval = -ENODEV;
- goto err_fr;
- }
-
- return 0;
-err_fr:
- stl_cleanup_panels(brdp);
- if (brdp->iosize2 > 0)
- release_region(brdp->ioaddr2, brdp->iosize2);
-err_rel1:
- release_region(brdp->ioaddr1, brdp->iosize1);
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-/*
- * Initialize and configure the specified board.
- * Scan through all the boards in the configuration and see what we
- * can find. Handle EIO and the ECH boards a little differently here
- * since the initial search and setup is very different.
- */
-
-static int __devinit stl_brdinit(struct stlbrd *brdp)
-{
- int i, retval;
-
- pr_debug("stl_brdinit(brdp=%p)\n", brdp);
-
- switch (brdp->brdtype) {
- case BRD_EASYIO:
- case BRD_EASYIOPCI:
- retval = stl_initeio(brdp);
- if (retval)
- goto err;
- break;
- case BRD_ECH:
- case BRD_ECHMC:
- case BRD_ECHPCI:
- case BRD_ECH64PCI:
- retval = stl_initech(brdp);
- if (retval)
- goto err;
- break;
- default:
- printk("STALLION: board=%d is unknown board type=%d\n",
- brdp->brdnr, brdp->brdtype);
- retval = -ENODEV;
- goto err;
- }
-
- if ((brdp->state & BRD_FOUND) == 0) {
- printk("STALLION: %s board not found, board=%d io=%x irq=%d\n",
- stl_brdnames[brdp->brdtype], brdp->brdnr,
- brdp->ioaddr1, brdp->irq);
- goto err_free;
- }
-
- for (i = 0; i < STL_MAXPANELS; i++)
- if (brdp->panels[i] != NULL)
- stl_initports(brdp, brdp->panels[i]);
-
- printk("STALLION: %s found, board=%d io=%x irq=%d "
- "nrpanels=%d nrports=%d\n", stl_brdnames[brdp->brdtype],
- brdp->brdnr, brdp->ioaddr1, brdp->irq, brdp->nrpanels,
- brdp->nrports);
-
- return 0;
-err_free:
- free_irq(brdp->irq, brdp);
-
- stl_cleanup_panels(brdp);
-
- release_region(brdp->ioaddr1, brdp->iosize1);
- if (brdp->iosize2 > 0)
- release_region(brdp->ioaddr2, brdp->iosize2);
-err:
- return retval;
-}
-
-/*****************************************************************************/
-
-/*
- * Find the next available board number that is free.
- */
-
-static int __devinit stl_getbrdnr(void)
-{
- unsigned int i;
-
- for (i = 0; i < STL_MAXBRDS; i++)
- if (stl_brds[i] == NULL) {
- if (i >= stl_nrbrds)
- stl_nrbrds = i + 1;
- return i;
- }
-
- return -1;
-}
-
-/*****************************************************************************/
-/*
- * We have a Stallion board. Allocate a board structure and
- * initialize it. Read its IO and IRQ resources from PCI
- * configuration space.
- */
-
-static int __devinit stl_pciprobe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- struct stlbrd *brdp;
- unsigned int i, brdtype = ent->driver_data;
- int brdnr, retval = -ENODEV;
-
- if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
- goto err;
-
- retval = pci_enable_device(pdev);
- if (retval)
- goto err;
- brdp = stl_allocbrd();
- if (brdp == NULL) {
- retval = -ENOMEM;
- goto err;
- }
- mutex_lock(&stl_brdslock);
- brdnr = stl_getbrdnr();
- if (brdnr < 0) {
- dev_err(&pdev->dev, "too many boards found, "
- "maximum supported %d\n", STL_MAXBRDS);
- mutex_unlock(&stl_brdslock);
- retval = -ENODEV;
- goto err_fr;
- }
- brdp->brdnr = (unsigned int)brdnr;
- stl_brds[brdp->brdnr] = brdp;
- mutex_unlock(&stl_brdslock);
-
- brdp->brdtype = brdtype;
- brdp->state |= STL_PROBED;
-
-/*
- * We have all resources from the board, so let's setup the actual
- * board structure now.
- */
- switch (brdtype) {
- case BRD_ECHPCI:
- brdp->ioaddr2 = pci_resource_start(pdev, 0);
- brdp->ioaddr1 = pci_resource_start(pdev, 1);
- break;
- case BRD_ECH64PCI:
- brdp->ioaddr2 = pci_resource_start(pdev, 2);
- brdp->ioaddr1 = pci_resource_start(pdev, 1);
- break;
- case BRD_EASYIOPCI:
- brdp->ioaddr1 = pci_resource_start(pdev, 2);
- brdp->ioaddr2 = pci_resource_start(pdev, 1);
- break;
- default:
- dev_err(&pdev->dev, "unknown PCI board type=%u\n", brdtype);
- break;
- }
-
- brdp->irq = pdev->irq;
- retval = stl_brdinit(brdp);
- if (retval)
- goto err_null;
-
- pci_set_drvdata(pdev, brdp);
-
- for (i = 0; i < brdp->nrports; i++)
- tty_register_device(stl_serial,
- brdp->brdnr * STL_MAXPORTS + i, &pdev->dev);
-
- return 0;
-err_null:
- stl_brds[brdp->brdnr] = NULL;
-err_fr:
- kfree(brdp);
-err:
- return retval;
-}
-
-static void __devexit stl_pciremove(struct pci_dev *pdev)
-{
- struct stlbrd *brdp = pci_get_drvdata(pdev);
- unsigned int i;
-
- free_irq(brdp->irq, brdp);
-
- stl_cleanup_panels(brdp);
-
- release_region(brdp->ioaddr1, brdp->iosize1);
- if (brdp->iosize2 > 0)
- release_region(brdp->ioaddr2, brdp->iosize2);
-
- for (i = 0; i < brdp->nrports; i++)
- tty_unregister_device(stl_serial,
- brdp->brdnr * STL_MAXPORTS + i);
-
- stl_brds[brdp->brdnr] = NULL;
- kfree(brdp);
-}
-
-static struct pci_driver stl_pcidriver = {
- .name = "stallion",
- .id_table = stl_pcibrds,
- .probe = stl_pciprobe,
- .remove = __devexit_p(stl_pciremove)
-};
-
-/*****************************************************************************/
-
-/*
- * Return the board stats structure to user app.
- */
-
-static int stl_getbrdstats(combrd_t __user *bp)
-{
- combrd_t stl_brdstats;
- struct stlbrd *brdp;
- struct stlpanel *panelp;
- unsigned int i;
-
- if (copy_from_user(&stl_brdstats, bp, sizeof(combrd_t)))
- return -EFAULT;
- if (stl_brdstats.brd >= STL_MAXBRDS)
- return -ENODEV;
- brdp = stl_brds[stl_brdstats.brd];
- if (brdp == NULL)
- return -ENODEV;
-
- memset(&stl_brdstats, 0, sizeof(combrd_t));
- stl_brdstats.brd = brdp->brdnr;
- stl_brdstats.type = brdp->brdtype;
- stl_brdstats.hwid = brdp->hwid;
- stl_brdstats.state = brdp->state;
- stl_brdstats.ioaddr = brdp->ioaddr1;
- stl_brdstats.ioaddr2 = brdp->ioaddr2;
- stl_brdstats.irq = brdp->irq;
- stl_brdstats.nrpanels = brdp->nrpanels;
- stl_brdstats.nrports = brdp->nrports;
- for (i = 0; i < brdp->nrpanels; i++) {
- panelp = brdp->panels[i];
- stl_brdstats.panels[i].panel = i;
- stl_brdstats.panels[i].hwid = panelp->hwid;
- stl_brdstats.panels[i].nrports = panelp->nrports;
- }
-
- return copy_to_user(bp, &stl_brdstats, sizeof(combrd_t)) ? -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Resolve the referenced port number into a port struct pointer.
- */
-
-static struct stlport *stl_getport(int brdnr, int panelnr, int portnr)
-{
- struct stlbrd *brdp;
- struct stlpanel *panelp;
-
- if (brdnr < 0 || brdnr >= STL_MAXBRDS)
- return NULL;
- brdp = stl_brds[brdnr];
- if (brdp == NULL)
- return NULL;
- if (panelnr < 0 || (unsigned int)panelnr >= brdp->nrpanels)
- return NULL;
- panelp = brdp->panels[panelnr];
- if (panelp == NULL)
- return NULL;
- if (portnr < 0 || (unsigned int)portnr >= panelp->nrports)
- return NULL;
- return panelp->ports[portnr];
-}
-
-/*****************************************************************************/
-
-/*
- * Return the port stats structure to user app. A NULL port struct
- * pointer passed in means that we need to find out from the app
- * what port to get stats for (used through board control device).
- */
-
-static int stl_getportstats(struct tty_struct *tty, struct stlport *portp, comstats_t __user *cp)
-{
- comstats_t stl_comstats;
- unsigned char *head, *tail;
- unsigned long flags;
-
- if (!portp) {
- if (copy_from_user(&stl_comstats, cp, sizeof(comstats_t)))
- return -EFAULT;
- portp = stl_getport(stl_comstats.brd, stl_comstats.panel,
- stl_comstats.port);
- if (portp == NULL)
- return -ENODEV;
- }
-
- mutex_lock(&portp->port.mutex);
- portp->stats.state = portp->istate;
- portp->stats.flags = portp->port.flags;
- portp->stats.hwid = portp->hwid;
-
- portp->stats.ttystate = 0;
- portp->stats.cflags = 0;
- portp->stats.iflags = 0;
- portp->stats.oflags = 0;
- portp->stats.lflags = 0;
- portp->stats.rxbuffered = 0;
-
- spin_lock_irqsave(&stallion_lock, flags);
- if (tty != NULL && portp->port.tty == tty) {
- portp->stats.ttystate = tty->flags;
- /* No longer available as a statistic */
- portp->stats.rxbuffered = 1; /*tty->flip.count; */
- if (tty->termios != NULL) {
- portp->stats.cflags = tty->termios->c_cflag;
- portp->stats.iflags = tty->termios->c_iflag;
- portp->stats.oflags = tty->termios->c_oflag;
- portp->stats.lflags = tty->termios->c_lflag;
- }
- }
- spin_unlock_irqrestore(&stallion_lock, flags);
-
- head = portp->tx.head;
- tail = portp->tx.tail;
- portp->stats.txbuffered = (head >= tail) ? (head - tail) :
- (STL_TXBUFSIZE - (tail - head));
-
- portp->stats.signals = (unsigned long) stl_getsignals(portp);
- mutex_unlock(&portp->port.mutex);
-
- return copy_to_user(cp, &portp->stats,
- sizeof(comstats_t)) ? -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Clear the port stats structure. We also return it zeroed out...
- */
-
-static int stl_clrportstats(struct stlport *portp, comstats_t __user *cp)
-{
- comstats_t stl_comstats;
-
- if (!portp) {
- if (copy_from_user(&stl_comstats, cp, sizeof(comstats_t)))
- return -EFAULT;
- portp = stl_getport(stl_comstats.brd, stl_comstats.panel,
- stl_comstats.port);
- if (portp == NULL)
- return -ENODEV;
- }
-
- mutex_lock(&portp->port.mutex);
- memset(&portp->stats, 0, sizeof(comstats_t));
- portp->stats.brd = portp->brdnr;
- portp->stats.panel = portp->panelnr;
- portp->stats.port = portp->portnr;
- mutex_unlock(&portp->port.mutex);
- return copy_to_user(cp, &portp->stats,
- sizeof(comstats_t)) ? -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the entire driver ports structure to a user app.
- */
-
-static int stl_getportstruct(struct stlport __user *arg)
-{
- struct stlport stl_dummyport;
- struct stlport *portp;
-
- if (copy_from_user(&stl_dummyport, arg, sizeof(struct stlport)))
- return -EFAULT;
- portp = stl_getport(stl_dummyport.brdnr, stl_dummyport.panelnr,
- stl_dummyport.portnr);
- if (!portp)
- return -ENODEV;
- return copy_to_user(arg, portp, sizeof(struct stlport)) ? -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Return the entire driver board structure to a user app.
- */
-
-static int stl_getbrdstruct(struct stlbrd __user *arg)
-{
- struct stlbrd stl_dummybrd;
- struct stlbrd *brdp;
-
- if (copy_from_user(&stl_dummybrd, arg, sizeof(struct stlbrd)))
- return -EFAULT;
- if (stl_dummybrd.brdnr >= STL_MAXBRDS)
- return -ENODEV;
- brdp = stl_brds[stl_dummybrd.brdnr];
- if (!brdp)
- return -ENODEV;
- return copy_to_user(arg, brdp, sizeof(struct stlbrd)) ? -EFAULT : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * The "staliomem" device is also required to do some special operations
- * on the board and/or ports. In this driver it is mostly used for stats
- * collection.
- */
-
-static long stl_memioctl(struct file *fp, unsigned int cmd, unsigned long arg)
-{
- int brdnr, rc;
- void __user *argp = (void __user *)arg;
-
- pr_debug("stl_memioctl(fp=%p,cmd=%x,arg=%lx)\n", fp, cmd,arg);
-
- brdnr = iminor(fp->f_dentry->d_inode);
- if (brdnr >= STL_MAXBRDS)
- return -ENODEV;
- rc = 0;
-
- switch (cmd) {
- case COM_GETPORTSTATS:
- rc = stl_getportstats(NULL, NULL, argp);
- break;
- case COM_CLRPORTSTATS:
- rc = stl_clrportstats(NULL, argp);
- break;
- case COM_GETBRDSTATS:
- rc = stl_getbrdstats(argp);
- break;
- case COM_READPORT:
- rc = stl_getportstruct(argp);
- break;
- case COM_READBOARD:
- rc = stl_getbrdstruct(argp);
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- return rc;
-}
-
-static const struct tty_operations stl_ops = {
- .open = stl_open,
- .close = stl_close,
- .write = stl_write,
- .put_char = stl_putchar,
- .flush_chars = stl_flushchars,
- .write_room = stl_writeroom,
- .chars_in_buffer = stl_charsinbuffer,
- .ioctl = stl_ioctl,
- .set_termios = stl_settermios,
- .throttle = stl_throttle,
- .unthrottle = stl_unthrottle,
- .stop = stl_stop,
- .start = stl_start,
- .hangup = stl_hangup,
- .flush_buffer = stl_flushbuffer,
- .break_ctl = stl_breakctl,
- .wait_until_sent = stl_waituntilsent,
- .send_xchar = stl_sendxchar,
- .tiocmget = stl_tiocmget,
- .tiocmset = stl_tiocmset,
- .proc_fops = &stl_proc_fops,
-};
-
-static const struct tty_port_operations stl_port_ops = {
- .carrier_raised = stl_carrier_raised,
- .dtr_rts = stl_dtr_rts,
- .activate = stl_activate,
- .shutdown = stl_shutdown,
-};
-
-/*****************************************************************************/
-/* CD1400 HARDWARE FUNCTIONS */
-/*****************************************************************************/
-
-/*
- * These functions get/set/update the registers of the cd1400 UARTs.
- * Access to the cd1400 registers is via an address/data io port pair.
- * (Maybe should make this inline...)
- */
-
-static int stl_cd1400getreg(struct stlport *portp, int regnr)
-{
- outb((regnr + portp->uartaddr), portp->ioaddr);
- return inb(portp->ioaddr + EREG_DATA);
-}
-
-static void stl_cd1400setreg(struct stlport *portp, int regnr, int value)
-{
- outb(regnr + portp->uartaddr, portp->ioaddr);
- outb(value, portp->ioaddr + EREG_DATA);
-}
-
-static int stl_cd1400updatereg(struct stlport *portp, int regnr, int value)
-{
- outb(regnr + portp->uartaddr, portp->ioaddr);
- if (inb(portp->ioaddr + EREG_DATA) != value) {
- outb(value, portp->ioaddr + EREG_DATA);
- return 1;
- }
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Inbitialize the UARTs in a panel. We don't care what sort of board
- * these ports are on - since the port io registers are almost
- * identical when dealing with ports.
- */
-
-static int stl_cd1400panelinit(struct stlbrd *brdp, struct stlpanel *panelp)
-{
- unsigned int gfrcr;
- int chipmask, i, j;
- int nrchips, uartaddr, ioaddr;
- unsigned long flags;
-
- pr_debug("stl_panelinit(brdp=%p,panelp=%p)\n", brdp, panelp);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(panelp->brdnr, panelp->pagenr);
-
-/*
- * Check that each chip is present and started up OK.
- */
- chipmask = 0;
- nrchips = panelp->nrports / CD1400_PORTS;
- for (i = 0; i < nrchips; i++) {
- if (brdp->brdtype == BRD_ECHPCI) {
- outb((panelp->pagenr + (i >> 1)), brdp->ioctrl);
- ioaddr = panelp->iobase;
- } else
- ioaddr = panelp->iobase + (EREG_BANKSIZE * (i >> 1));
- uartaddr = (i & 0x01) ? 0x080 : 0;
- outb((GFRCR + uartaddr), ioaddr);
- outb(0, (ioaddr + EREG_DATA));
- outb((CCR + uartaddr), ioaddr);
- outb(CCR_RESETFULL, (ioaddr + EREG_DATA));
- outb(CCR_RESETFULL, (ioaddr + EREG_DATA));
- outb((GFRCR + uartaddr), ioaddr);
- for (j = 0; j < CCR_MAXWAIT; j++)
- if ((gfrcr = inb(ioaddr + EREG_DATA)) != 0)
- break;
-
- if ((j >= CCR_MAXWAIT) || (gfrcr < 0x40) || (gfrcr > 0x60)) {
- printk("STALLION: cd1400 not responding, "
- "brd=%d panel=%d chip=%d\n",
- panelp->brdnr, panelp->panelnr, i);
- continue;
- }
- chipmask |= (0x1 << i);
- outb((PPR + uartaddr), ioaddr);
- outb(PPR_SCALAR, (ioaddr + EREG_DATA));
- }
-
- BRDDISABLE(panelp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
- return chipmask;
-}
-
-/*****************************************************************************/
-
-/*
- * Initialize hardware specific port registers.
- */
-
-static void stl_cd1400portinit(struct stlbrd *brdp, struct stlpanel *panelp, struct stlport *portp)
-{
- unsigned long flags;
- pr_debug("stl_cd1400portinit(brdp=%p,panelp=%p,portp=%p)\n", brdp,
- panelp, portp);
-
- if ((brdp == NULL) || (panelp == NULL) ||
- (portp == NULL))
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- portp->ioaddr = panelp->iobase + (((brdp->brdtype == BRD_ECHPCI) ||
- (portp->portnr < 8)) ? 0 : EREG_BANKSIZE);
- portp->uartaddr = (portp->portnr & 0x04) << 5;
- portp->pagenr = panelp->pagenr + (portp->portnr >> 3);
-
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- stl_cd1400setreg(portp, LIVR, (portp->portnr << 3));
- portp->hwid = stl_cd1400getreg(portp, GFRCR);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Wait for the command register to be ready. We will poll this,
- * since it won't usually take too long to be ready.
- */
-
-static void stl_cd1400ccrwait(struct stlport *portp)
-{
- int i;
-
- for (i = 0; i < CCR_MAXWAIT; i++)
- if (stl_cd1400getreg(portp, CCR) == 0)
- return;
-
- printk("STALLION: cd1400 not responding, port=%d panel=%d brd=%d\n",
- portp->portnr, portp->panelnr, portp->brdnr);
-}
-
-/*****************************************************************************/
-
-/*
- * Set up the cd1400 registers for a port based on the termios port
- * settings.
- */
-
-static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp)
-{
- struct stlbrd *brdp;
- unsigned long flags;
- unsigned int clkdiv, baudrate;
- unsigned char cor1, cor2, cor3;
- unsigned char cor4, cor5, ccr;
- unsigned char srer, sreron, sreroff;
- unsigned char mcor1, mcor2, rtpr;
- unsigned char clk, div;
-
- cor1 = 0;
- cor2 = 0;
- cor3 = 0;
- cor4 = 0;
- cor5 = 0;
- ccr = 0;
- rtpr = 0;
- clk = 0;
- div = 0;
- mcor1 = 0;
- mcor2 = 0;
- sreron = 0;
- sreroff = 0;
-
- brdp = stl_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
-/*
- * Set up the RX char ignore mask with those RX error types we
- * can ignore. We can get the cd1400 to help us out a little here,
- * it will ignore parity errors and breaks for us.
- */
- portp->rxignoremsk = 0;
- if (tiosp->c_iflag & IGNPAR) {
- portp->rxignoremsk |= (ST_PARITY | ST_FRAMING | ST_OVERRUN);
- cor1 |= COR1_PARIGNORE;
- }
- if (tiosp->c_iflag & IGNBRK) {
- portp->rxignoremsk |= ST_BREAK;
- cor4 |= COR4_IGNBRK;
- }
-
- portp->rxmarkmsk = ST_OVERRUN;
- if (tiosp->c_iflag & (INPCK | PARMRK))
- portp->rxmarkmsk |= (ST_PARITY | ST_FRAMING);
- if (tiosp->c_iflag & BRKINT)
- portp->rxmarkmsk |= ST_BREAK;
-
-/*
- * Go through the char size, parity and stop bits and set all the
- * option register appropriately.
- */
- switch (tiosp->c_cflag & CSIZE) {
- case CS5:
- cor1 |= COR1_CHL5;
- break;
- case CS6:
- cor1 |= COR1_CHL6;
- break;
- case CS7:
- cor1 |= COR1_CHL7;
- break;
- default:
- cor1 |= COR1_CHL8;
- break;
- }
-
- if (tiosp->c_cflag & CSTOPB)
- cor1 |= COR1_STOP2;
- else
- cor1 |= COR1_STOP1;
-
- if (tiosp->c_cflag & PARENB) {
- if (tiosp->c_cflag & PARODD)
- cor1 |= (COR1_PARENB | COR1_PARODD);
- else
- cor1 |= (COR1_PARENB | COR1_PAREVEN);
- } else {
- cor1 |= COR1_PARNONE;
- }
-
-/*
- * Set the RX FIFO threshold at 6 chars. This gives a bit of breathing
- * space for hardware flow control and the like. This should be set to
- * VMIN. Also here we will set the RX data timeout to 10ms - this should
- * really be based on VTIME.
- */
- cor3 |= FIFO_RXTHRESHOLD;
- rtpr = 2;
-
-/*
- * Calculate the baud rate timers. For now we will just assume that
- * the input and output baud are the same. Could have used a baud
- * table here, but this way we can generate virtually any baud rate
- * we like!
- */
- baudrate = tiosp->c_cflag & CBAUD;
- if (baudrate & CBAUDEX) {
- baudrate &= ~CBAUDEX;
- if ((baudrate < 1) || (baudrate > 4))
- tiosp->c_cflag &= ~CBAUDEX;
- else
- baudrate += 15;
- }
- baudrate = stl_baudrates[baudrate];
- if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baudrate = 57600;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baudrate = 115200;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- baudrate = 230400;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- baudrate = 460800;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
- baudrate = (portp->baud_base / portp->custom_divisor);
- }
- if (baudrate > STL_CD1400MAXBAUD)
- baudrate = STL_CD1400MAXBAUD;
-
- if (baudrate > 0) {
- for (clk = 0; clk < CD1400_NUMCLKS; clk++) {
- clkdiv = (portp->clk / stl_cd1400clkdivs[clk]) / baudrate;
- if (clkdiv < 0x100)
- break;
- }
- div = (unsigned char) clkdiv;
- }
-
-/*
- * Check what form of modem signaling is required and set it up.
- */
- if ((tiosp->c_cflag & CLOCAL) == 0) {
- mcor1 |= MCOR1_DCD;
- mcor2 |= MCOR2_DCD;
- sreron |= SRER_MODEM;
- portp->port.flags |= ASYNC_CHECK_CD;
- } else
- portp->port.flags &= ~ASYNC_CHECK_CD;
-
-/*
- * Setup cd1400 enhanced modes if we can. In particular we want to
- * handle as much of the flow control as possible automatically. As
- * well as saving a few CPU cycles it will also greatly improve flow
- * control reliability.
- */
- if (tiosp->c_iflag & IXON) {
- cor2 |= COR2_TXIBE;
- cor3 |= COR3_SCD12;
- if (tiosp->c_iflag & IXANY)
- cor2 |= COR2_IXM;
- }
-
- if (tiosp->c_cflag & CRTSCTS) {
- cor2 |= COR2_CTSAE;
- mcor1 |= FIFO_RTSTHRESHOLD;
- }
-
-/*
- * All cd1400 register values calculated so go through and set
- * them all up.
- */
-
- pr_debug("SETPORT: portnr=%d panelnr=%d brdnr=%d\n",
- portp->portnr, portp->panelnr, portp->brdnr);
- pr_debug(" cor1=%x cor2=%x cor3=%x cor4=%x cor5=%x\n",
- cor1, cor2, cor3, cor4, cor5);
- pr_debug(" mcor1=%x mcor2=%x rtpr=%x sreron=%x sreroff=%x\n",
- mcor1, mcor2, rtpr, sreron, sreroff);
- pr_debug(" tcor=%x tbpr=%x rcor=%x rbpr=%x\n", clk, div, clk, div);
- pr_debug(" schr1=%x schr2=%x schr3=%x schr4=%x\n",
- tiosp->c_cc[VSTART], tiosp->c_cc[VSTOP],
- tiosp->c_cc[VSTART], tiosp->c_cc[VSTOP]);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x3));
- srer = stl_cd1400getreg(portp, SRER);
- stl_cd1400setreg(portp, SRER, 0);
- if (stl_cd1400updatereg(portp, COR1, cor1))
- ccr = 1;
- if (stl_cd1400updatereg(portp, COR2, cor2))
- ccr = 1;
- if (stl_cd1400updatereg(portp, COR3, cor3))
- ccr = 1;
- if (ccr) {
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, CCR_CORCHANGE);
- }
- stl_cd1400setreg(portp, COR4, cor4);
- stl_cd1400setreg(portp, COR5, cor5);
- stl_cd1400setreg(portp, MCOR1, mcor1);
- stl_cd1400setreg(portp, MCOR2, mcor2);
- if (baudrate > 0) {
- stl_cd1400setreg(portp, TCOR, clk);
- stl_cd1400setreg(portp, TBPR, div);
- stl_cd1400setreg(portp, RCOR, clk);
- stl_cd1400setreg(portp, RBPR, div);
- }
- stl_cd1400setreg(portp, SCHR1, tiosp->c_cc[VSTART]);
- stl_cd1400setreg(portp, SCHR2, tiosp->c_cc[VSTOP]);
- stl_cd1400setreg(portp, SCHR3, tiosp->c_cc[VSTART]);
- stl_cd1400setreg(portp, SCHR4, tiosp->c_cc[VSTOP]);
- stl_cd1400setreg(portp, RTPR, rtpr);
- mcor1 = stl_cd1400getreg(portp, MSVR1);
- if (mcor1 & MSVR1_DCD)
- portp->sigs |= TIOCM_CD;
- else
- portp->sigs &= ~TIOCM_CD;
- stl_cd1400setreg(portp, SRER, ((srer & ~sreroff) | sreron));
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Set the state of the DTR and RTS signals.
- */
-
-static void stl_cd1400setsignals(struct stlport *portp, int dtr, int rts)
-{
- unsigned char msvr1, msvr2;
- unsigned long flags;
-
- pr_debug("stl_cd1400setsignals(portp=%p,dtr=%d,rts=%d)\n",
- portp, dtr, rts);
-
- msvr1 = 0;
- msvr2 = 0;
- if (dtr > 0)
- msvr1 = MSVR1_DTR;
- if (rts > 0)
- msvr2 = MSVR2_RTS;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- if (rts >= 0)
- stl_cd1400setreg(portp, MSVR2, msvr2);
- if (dtr >= 0)
- stl_cd1400setreg(portp, MSVR1, msvr1);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Return the state of the signals.
- */
-
-static int stl_cd1400getsignals(struct stlport *portp)
-{
- unsigned char msvr1, msvr2;
- unsigned long flags;
- int sigs;
-
- pr_debug("stl_cd1400getsignals(portp=%p)\n", portp);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- msvr1 = stl_cd1400getreg(portp, MSVR1);
- msvr2 = stl_cd1400getreg(portp, MSVR2);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- sigs = 0;
- sigs |= (msvr1 & MSVR1_DCD) ? TIOCM_CD : 0;
- sigs |= (msvr1 & MSVR1_CTS) ? TIOCM_CTS : 0;
- sigs |= (msvr1 & MSVR1_DTR) ? TIOCM_DTR : 0;
- sigs |= (msvr2 & MSVR2_RTS) ? TIOCM_RTS : 0;
-#if 0
- sigs |= (msvr1 & MSVR1_RI) ? TIOCM_RI : 0;
- sigs |= (msvr1 & MSVR1_DSR) ? TIOCM_DSR : 0;
-#else
- sigs |= TIOCM_DSR;
-#endif
- return sigs;
-}
-
-/*****************************************************************************/
-
-/*
- * Enable/Disable the Transmitter and/or Receiver.
- */
-
-static void stl_cd1400enablerxtx(struct stlport *portp, int rx, int tx)
-{
- unsigned char ccr;
- unsigned long flags;
-
- pr_debug("stl_cd1400enablerxtx(portp=%p,rx=%d,tx=%d)\n", portp, rx, tx);
-
- ccr = 0;
-
- if (tx == 0)
- ccr |= CCR_TXDISABLE;
- else if (tx > 0)
- ccr |= CCR_TXENABLE;
- if (rx == 0)
- ccr |= CCR_RXDISABLE;
- else if (rx > 0)
- ccr |= CCR_RXENABLE;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, ccr);
- stl_cd1400ccrwait(portp);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Start/stop the Transmitter and/or Receiver.
- */
-
-static void stl_cd1400startrxtx(struct stlport *portp, int rx, int tx)
-{
- unsigned char sreron, sreroff;
- unsigned long flags;
-
- pr_debug("stl_cd1400startrxtx(portp=%p,rx=%d,tx=%d)\n", portp, rx, tx);
-
- sreron = 0;
- sreroff = 0;
- if (tx == 0)
- sreroff |= (SRER_TXDATA | SRER_TXEMPTY);
- else if (tx == 1)
- sreron |= SRER_TXDATA;
- else if (tx >= 2)
- sreron |= SRER_TXEMPTY;
- if (rx == 0)
- sreroff |= SRER_RXDATA;
- else if (rx > 0)
- sreron |= SRER_RXDATA;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- stl_cd1400setreg(portp, SRER,
- ((stl_cd1400getreg(portp, SRER) & ~sreroff) | sreron));
- BRDDISABLE(portp->brdnr);
- if (tx > 0)
- set_bit(ASYI_TXBUSY, &portp->istate);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Disable all interrupts from this port.
- */
-
-static void stl_cd1400disableintrs(struct stlport *portp)
-{
- unsigned long flags;
-
- pr_debug("stl_cd1400disableintrs(portp=%p)\n", portp);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- stl_cd1400setreg(portp, SRER, 0);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-static void stl_cd1400sendbreak(struct stlport *portp, int len)
-{
- unsigned long flags;
-
- pr_debug("stl_cd1400sendbreak(portp=%p,len=%d)\n", portp, len);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- stl_cd1400setreg(portp, SRER,
- ((stl_cd1400getreg(portp, SRER) & ~SRER_TXDATA) |
- SRER_TXEMPTY));
- BRDDISABLE(portp->brdnr);
- portp->brklen = len;
- if (len == 1)
- portp->stats.txbreaks++;
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Take flow control actions...
- */
-
-static void stl_cd1400flowctrl(struct stlport *portp, int state)
-{
- struct tty_struct *tty;
- unsigned long flags;
-
- pr_debug("stl_cd1400flowctrl(portp=%p,state=%x)\n", portp, state);
-
- if (portp == NULL)
- return;
- tty = tty_port_tty_get(&portp->port);
- if (tty == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
-
- if (state) {
- if (tty->termios->c_iflag & IXOFF) {
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, CCR_SENDSCHR1);
- portp->stats.rxxon++;
- stl_cd1400ccrwait(portp);
- }
-/*
- * Question: should we return RTS to what it was before? It may
- * have been set by an ioctl... Suppose not, since if you have
- * hardware flow control set then it is pretty silly to go and
- * set the RTS line by hand.
- */
- if (tty->termios->c_cflag & CRTSCTS) {
- stl_cd1400setreg(portp, MCOR1,
- (stl_cd1400getreg(portp, MCOR1) |
- FIFO_RTSTHRESHOLD));
- stl_cd1400setreg(portp, MSVR2, MSVR2_RTS);
- portp->stats.rxrtson++;
- }
- } else {
- if (tty->termios->c_iflag & IXOFF) {
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, CCR_SENDSCHR2);
- portp->stats.rxxoff++;
- stl_cd1400ccrwait(portp);
- }
- if (tty->termios->c_cflag & CRTSCTS) {
- stl_cd1400setreg(portp, MCOR1,
- (stl_cd1400getreg(portp, MCOR1) & 0xf0));
- stl_cd1400setreg(portp, MSVR2, 0);
- portp->stats.rxrtsoff++;
- }
- }
-
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-/*
- * Send a flow control character...
- */
-
-static void stl_cd1400sendflow(struct stlport *portp, int state)
-{
- struct tty_struct *tty;
- unsigned long flags;
-
- pr_debug("stl_cd1400sendflow(portp=%p,state=%x)\n", portp, state);
-
- if (portp == NULL)
- return;
- tty = tty_port_tty_get(&portp->port);
- if (tty == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- if (state) {
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, CCR_SENDSCHR1);
- portp->stats.rxxon++;
- stl_cd1400ccrwait(portp);
- } else {
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, CCR_SENDSCHR2);
- portp->stats.rxxoff++;
- stl_cd1400ccrwait(portp);
- }
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-static void stl_cd1400flush(struct stlport *portp)
-{
- unsigned long flags;
-
- pr_debug("stl_cd1400flush(portp=%p)\n", portp);
-
- if (portp == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_cd1400setreg(portp, CAR, (portp->portnr & 0x03));
- stl_cd1400ccrwait(portp);
- stl_cd1400setreg(portp, CCR, CCR_TXFLUSHFIFO);
- stl_cd1400ccrwait(portp);
- portp->tx.tail = portp->tx.head;
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Return the current state of data flow on this port. This is only
- * really interesting when determining if data has fully completed
- * transmission or not... This is easy for the cd1400, it accurately
- * maintains the busy port flag.
- */
-
-static int stl_cd1400datastate(struct stlport *portp)
-{
- pr_debug("stl_cd1400datastate(portp=%p)\n", portp);
-
- if (portp == NULL)
- return 0;
-
- return test_bit(ASYI_TXBUSY, &portp->istate) ? 1 : 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for cd1400 EasyIO boards.
- */
-
-static void stl_cd1400eiointr(struct stlpanel *panelp, unsigned int iobase)
-{
- unsigned char svrtype;
-
- pr_debug("stl_cd1400eiointr(panelp=%p,iobase=%x)\n", panelp, iobase);
-
- spin_lock(&brd_lock);
- outb(SVRR, iobase);
- svrtype = inb(iobase + EREG_DATA);
- if (panelp->nrports > 4) {
- outb((SVRR + 0x80), iobase);
- svrtype |= inb(iobase + EREG_DATA);
- }
-
- if (svrtype & SVRR_RX)
- stl_cd1400rxisr(panelp, iobase);
- else if (svrtype & SVRR_TX)
- stl_cd1400txisr(panelp, iobase);
- else if (svrtype & SVRR_MDM)
- stl_cd1400mdmisr(panelp, iobase);
-
- spin_unlock(&brd_lock);
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for cd1400 panels.
- */
-
-static void stl_cd1400echintr(struct stlpanel *panelp, unsigned int iobase)
-{
- unsigned char svrtype;
-
- pr_debug("stl_cd1400echintr(panelp=%p,iobase=%x)\n", panelp, iobase);
-
- outb(SVRR, iobase);
- svrtype = inb(iobase + EREG_DATA);
- outb((SVRR + 0x80), iobase);
- svrtype |= inb(iobase + EREG_DATA);
- if (svrtype & SVRR_RX)
- stl_cd1400rxisr(panelp, iobase);
- else if (svrtype & SVRR_TX)
- stl_cd1400txisr(panelp, iobase);
- else if (svrtype & SVRR_MDM)
- stl_cd1400mdmisr(panelp, iobase);
-}
-
-
-/*****************************************************************************/
-
-/*
- * Unfortunately we need to handle breaks in the TX data stream, since
- * this is the only way to generate them on the cd1400.
- */
-
-static int stl_cd1400breakisr(struct stlport *portp, int ioaddr)
-{
- if (portp->brklen == 1) {
- outb((COR2 + portp->uartaddr), ioaddr);
- outb((inb(ioaddr + EREG_DATA) | COR2_ETC),
- (ioaddr + EREG_DATA));
- outb((TDR + portp->uartaddr), ioaddr);
- outb(ETC_CMD, (ioaddr + EREG_DATA));
- outb(ETC_STARTBREAK, (ioaddr + EREG_DATA));
- outb((SRER + portp->uartaddr), ioaddr);
- outb((inb(ioaddr + EREG_DATA) & ~(SRER_TXDATA | SRER_TXEMPTY)),
- (ioaddr + EREG_DATA));
- return 1;
- } else if (portp->brklen > 1) {
- outb((TDR + portp->uartaddr), ioaddr);
- outb(ETC_CMD, (ioaddr + EREG_DATA));
- outb(ETC_STOPBREAK, (ioaddr + EREG_DATA));
- portp->brklen = -1;
- return 1;
- } else {
- outb((COR2 + portp->uartaddr), ioaddr);
- outb((inb(ioaddr + EREG_DATA) & ~COR2_ETC),
- (ioaddr + EREG_DATA));
- portp->brklen = 0;
- }
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Transmit interrupt handler. This has gotta be fast! Handling TX
- * chars is pretty simple, stuff as many as possible from the TX buffer
- * into the cd1400 FIFO. Must also handle TX breaks here, since they
- * are embedded as commands in the data stream. Oh no, had to use a goto!
- * This could be optimized more, will do when I get time...
- * In practice it is possible that interrupts are enabled but that the
- * port has been hung up. Need to handle not having any TX buffer here,
- * this is done by using the side effect that head and tail will also
- * be NULL if the buffer has been freed.
- */
-
-static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr)
-{
- struct stlport *portp;
- int len, stlen;
- char *head, *tail;
- unsigned char ioack, srer;
- struct tty_struct *tty;
-
- pr_debug("stl_cd1400txisr(panelp=%p,ioaddr=%x)\n", panelp, ioaddr);
-
- ioack = inb(ioaddr + EREG_TXACK);
- if (((ioack & panelp->ackmask) != 0) ||
- ((ioack & ACK_TYPMASK) != ACK_TYPTX)) {
- printk("STALLION: bad TX interrupt ack value=%x\n", ioack);
- return;
- }
- portp = panelp->ports[(ioack >> 3)];
-
-/*
- * Unfortunately we need to handle breaks in the data stream, since
- * this is the only way to generate them on the cd1400. Do it now if
- * a break is to be sent.
- */
- if (portp->brklen != 0)
- if (stl_cd1400breakisr(portp, ioaddr))
- goto stl_txalldone;
-
- head = portp->tx.head;
- tail = portp->tx.tail;
- len = (head >= tail) ? (head - tail) : (STL_TXBUFSIZE - (tail - head));
- if ((len == 0) || ((len < STL_TXBUFLOW) &&
- (test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
- set_bit(ASYI_TXLOW, &portp->istate);
- tty = tty_port_tty_get(&portp->port);
- if (tty) {
- tty_wakeup(tty);
- tty_kref_put(tty);
- }
- }
-
- if (len == 0) {
- outb((SRER + portp->uartaddr), ioaddr);
- srer = inb(ioaddr + EREG_DATA);
- if (srer & SRER_TXDATA) {
- srer = (srer & ~SRER_TXDATA) | SRER_TXEMPTY;
- } else {
- srer &= ~(SRER_TXDATA | SRER_TXEMPTY);
- clear_bit(ASYI_TXBUSY, &portp->istate);
- }
- outb(srer, (ioaddr + EREG_DATA));
- } else {
- len = min(len, CD1400_TXFIFOSIZE);
- portp->stats.txtotal += len;
- stlen = min_t(unsigned int, len,
- (portp->tx.buf + STL_TXBUFSIZE) - tail);
- outb((TDR + portp->uartaddr), ioaddr);
- outsb((ioaddr + EREG_DATA), tail, stlen);
- len -= stlen;
- tail += stlen;
- if (tail >= (portp->tx.buf + STL_TXBUFSIZE))
- tail = portp->tx.buf;
- if (len > 0) {
- outsb((ioaddr + EREG_DATA), tail, len);
- tail += len;
- }
- portp->tx.tail = tail;
- }
-
-stl_txalldone:
- outb((EOSRR + portp->uartaddr), ioaddr);
- outb(0, (ioaddr + EREG_DATA));
-}
-
-/*****************************************************************************/
-
-/*
- * Receive character interrupt handler. Determine if we have good chars
- * or bad chars and then process appropriately. Good chars are easy
- * just shove the lot into the RX buffer and set all status byte to 0.
- * If a bad RX char then process as required. This routine needs to be
- * fast! In practice it is possible that we get an interrupt on a port
- * that is closed. This can happen on hangups - since they completely
- * shutdown a port not in user context. Need to handle this case.
- */
-
-static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr)
-{
- struct stlport *portp;
- struct tty_struct *tty;
- unsigned int ioack, len, buflen;
- unsigned char status;
- char ch;
-
- pr_debug("stl_cd1400rxisr(panelp=%p,ioaddr=%x)\n", panelp, ioaddr);
-
- ioack = inb(ioaddr + EREG_RXACK);
- if ((ioack & panelp->ackmask) != 0) {
- printk("STALLION: bad RX interrupt ack value=%x\n", ioack);
- return;
- }
- portp = panelp->ports[(ioack >> 3)];
- tty = tty_port_tty_get(&portp->port);
-
- if ((ioack & ACK_TYPMASK) == ACK_TYPRXGOOD) {
- outb((RDCR + portp->uartaddr), ioaddr);
- len = inb(ioaddr + EREG_DATA);
- if (tty == NULL || (buflen = tty_buffer_request_room(tty, len)) == 0) {
- len = min_t(unsigned int, len, sizeof(stl_unwanted));
- outb((RDSR + portp->uartaddr), ioaddr);
- insb((ioaddr + EREG_DATA), &stl_unwanted[0], len);
- portp->stats.rxlost += len;
- portp->stats.rxtotal += len;
- } else {
- len = min(len, buflen);
- if (len > 0) {
- unsigned char *ptr;
- outb((RDSR + portp->uartaddr), ioaddr);
- tty_prepare_flip_string(tty, &ptr, len);
- insb((ioaddr + EREG_DATA), ptr, len);
- tty_schedule_flip(tty);
- portp->stats.rxtotal += len;
- }
- }
- } else if ((ioack & ACK_TYPMASK) == ACK_TYPRXBAD) {
- outb((RDSR + portp->uartaddr), ioaddr);
- status = inb(ioaddr + EREG_DATA);
- ch = inb(ioaddr + EREG_DATA);
- if (status & ST_PARITY)
- portp->stats.rxparity++;
- if (status & ST_FRAMING)
- portp->stats.rxframing++;
- if (status & ST_OVERRUN)
- portp->stats.rxoverrun++;
- if (status & ST_BREAK)
- portp->stats.rxbreaks++;
- if (status & ST_SCHARMASK) {
- if ((status & ST_SCHARMASK) == ST_SCHAR1)
- portp->stats.txxon++;
- if ((status & ST_SCHARMASK) == ST_SCHAR2)
- portp->stats.txxoff++;
- goto stl_rxalldone;
- }
- if (tty != NULL && (portp->rxignoremsk & status) == 0) {
- if (portp->rxmarkmsk & status) {
- if (status & ST_BREAK) {
- status = TTY_BREAK;
- if (portp->port.flags & ASYNC_SAK) {
- do_SAK(tty);
- BRDENABLE(portp->brdnr, portp->pagenr);
- }
- } else if (status & ST_PARITY)
- status = TTY_PARITY;
- else if (status & ST_FRAMING)
- status = TTY_FRAME;
- else if(status & ST_OVERRUN)
- status = TTY_OVERRUN;
- else
- status = 0;
- } else
- status = 0;
- tty_insert_flip_char(tty, ch, status);
- tty_schedule_flip(tty);
- }
- } else {
- printk("STALLION: bad RX interrupt ack value=%x\n", ioack);
- tty_kref_put(tty);
- return;
- }
-
-stl_rxalldone:
- tty_kref_put(tty);
- outb((EOSRR + portp->uartaddr), ioaddr);
- outb(0, (ioaddr + EREG_DATA));
-}
-
-/*****************************************************************************/
-
-/*
- * Modem interrupt handler. The is called when the modem signal line
- * (DCD) has changed state. Leave most of the work to the off-level
- * processing routine.
- */
-
-static void stl_cd1400mdmisr(struct stlpanel *panelp, int ioaddr)
-{
- struct stlport *portp;
- unsigned int ioack;
- unsigned char misr;
-
- pr_debug("stl_cd1400mdmisr(panelp=%p)\n", panelp);
-
- ioack = inb(ioaddr + EREG_MDACK);
- if (((ioack & panelp->ackmask) != 0) ||
- ((ioack & ACK_TYPMASK) != ACK_TYPMDM)) {
- printk("STALLION: bad MODEM interrupt ack value=%x\n", ioack);
- return;
- }
- portp = panelp->ports[(ioack >> 3)];
-
- outb((MISR + portp->uartaddr), ioaddr);
- misr = inb(ioaddr + EREG_DATA);
- if (misr & MISR_DCD) {
- stl_cd_change(portp);
- portp->stats.modem++;
- }
-
- outb((EOSRR + portp->uartaddr), ioaddr);
- outb(0, (ioaddr + EREG_DATA));
-}
-
-/*****************************************************************************/
-/* SC26198 HARDWARE FUNCTIONS */
-/*****************************************************************************/
-
-/*
- * These functions get/set/update the registers of the sc26198 UARTs.
- * Access to the sc26198 registers is via an address/data io port pair.
- * (Maybe should make this inline...)
- */
-
-static int stl_sc26198getreg(struct stlport *portp, int regnr)
-{
- outb((regnr | portp->uartaddr), (portp->ioaddr + XP_ADDR));
- return inb(portp->ioaddr + XP_DATA);
-}
-
-static void stl_sc26198setreg(struct stlport *portp, int regnr, int value)
-{
- outb((regnr | portp->uartaddr), (portp->ioaddr + XP_ADDR));
- outb(value, (portp->ioaddr + XP_DATA));
-}
-
-static int stl_sc26198updatereg(struct stlport *portp, int regnr, int value)
-{
- outb((regnr | portp->uartaddr), (portp->ioaddr + XP_ADDR));
- if (inb(portp->ioaddr + XP_DATA) != value) {
- outb(value, (portp->ioaddr + XP_DATA));
- return 1;
- }
- return 0;
-}
-
-/*****************************************************************************/
-
-/*
- * Functions to get and set the sc26198 global registers.
- */
-
-static int stl_sc26198getglobreg(struct stlport *portp, int regnr)
-{
- outb(regnr, (portp->ioaddr + XP_ADDR));
- return inb(portp->ioaddr + XP_DATA);
-}
-
-#if 0
-static void stl_sc26198setglobreg(struct stlport *portp, int regnr, int value)
-{
- outb(regnr, (portp->ioaddr + XP_ADDR));
- outb(value, (portp->ioaddr + XP_DATA));
-}
-#endif
-
-/*****************************************************************************/
-
-/*
- * Inbitialize the UARTs in a panel. We don't care what sort of board
- * these ports are on - since the port io registers are almost
- * identical when dealing with ports.
- */
-
-static int stl_sc26198panelinit(struct stlbrd *brdp, struct stlpanel *panelp)
-{
- int chipmask, i;
- int nrchips, ioaddr;
-
- pr_debug("stl_sc26198panelinit(brdp=%p,panelp=%p)\n", brdp, panelp);
-
- BRDENABLE(panelp->brdnr, panelp->pagenr);
-
-/*
- * Check that each chip is present and started up OK.
- */
- chipmask = 0;
- nrchips = (panelp->nrports + 4) / SC26198_PORTS;
- if (brdp->brdtype == BRD_ECHPCI)
- outb(panelp->pagenr, brdp->ioctrl);
-
- for (i = 0; i < nrchips; i++) {
- ioaddr = panelp->iobase + (i * 4);
- outb(SCCR, (ioaddr + XP_ADDR));
- outb(CR_RESETALL, (ioaddr + XP_DATA));
- outb(TSTR, (ioaddr + XP_ADDR));
- if (inb(ioaddr + XP_DATA) != 0) {
- printk("STALLION: sc26198 not responding, "
- "brd=%d panel=%d chip=%d\n",
- panelp->brdnr, panelp->panelnr, i);
- continue;
- }
- chipmask |= (0x1 << i);
- outb(GCCR, (ioaddr + XP_ADDR));
- outb(GCCR_IVRTYPCHANACK, (ioaddr + XP_DATA));
- outb(WDTRCR, (ioaddr + XP_ADDR));
- outb(0xff, (ioaddr + XP_DATA));
- }
-
- BRDDISABLE(panelp->brdnr);
- return chipmask;
-}
-
-/*****************************************************************************/
-
-/*
- * Initialize hardware specific port registers.
- */
-
-static void stl_sc26198portinit(struct stlbrd *brdp, struct stlpanel *panelp, struct stlport *portp)
-{
- pr_debug("stl_sc26198portinit(brdp=%p,panelp=%p,portp=%p)\n", brdp,
- panelp, portp);
-
- if ((brdp == NULL) || (panelp == NULL) ||
- (portp == NULL))
- return;
-
- portp->ioaddr = panelp->iobase + ((portp->portnr < 8) ? 0 : 4);
- portp->uartaddr = (portp->portnr & 0x07) << 4;
- portp->pagenr = panelp->pagenr;
- portp->hwid = 0x1;
-
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_sc26198setreg(portp, IOPCR, IOPCR_SETSIGS);
- BRDDISABLE(portp->brdnr);
-}
-
-/*****************************************************************************/
-
-/*
- * Set up the sc26198 registers for a port based on the termios port
- * settings.
- */
-
-static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp)
-{
- struct stlbrd *brdp;
- unsigned long flags;
- unsigned int baudrate;
- unsigned char mr0, mr1, mr2, clk;
- unsigned char imron, imroff, iopr, ipr;
-
- mr0 = 0;
- mr1 = 0;
- mr2 = 0;
- clk = 0;
- iopr = 0;
- imron = 0;
- imroff = 0;
-
- brdp = stl_brds[portp->brdnr];
- if (brdp == NULL)
- return;
-
-/*
- * Set up the RX char ignore mask with those RX error types we
- * can ignore.
- */
- portp->rxignoremsk = 0;
- if (tiosp->c_iflag & IGNPAR)
- portp->rxignoremsk |= (SR_RXPARITY | SR_RXFRAMING |
- SR_RXOVERRUN);
- if (tiosp->c_iflag & IGNBRK)
- portp->rxignoremsk |= SR_RXBREAK;
-
- portp->rxmarkmsk = SR_RXOVERRUN;
- if (tiosp->c_iflag & (INPCK | PARMRK))
- portp->rxmarkmsk |= (SR_RXPARITY | SR_RXFRAMING);
- if (tiosp->c_iflag & BRKINT)
- portp->rxmarkmsk |= SR_RXBREAK;
-
-/*
- * Go through the char size, parity and stop bits and set all the
- * option register appropriately.
- */
- switch (tiosp->c_cflag & CSIZE) {
- case CS5:
- mr1 |= MR1_CS5;
- break;
- case CS6:
- mr1 |= MR1_CS6;
- break;
- case CS7:
- mr1 |= MR1_CS7;
- break;
- default:
- mr1 |= MR1_CS8;
- break;
- }
-
- if (tiosp->c_cflag & CSTOPB)
- mr2 |= MR2_STOP2;
- else
- mr2 |= MR2_STOP1;
-
- if (tiosp->c_cflag & PARENB) {
- if (tiosp->c_cflag & PARODD)
- mr1 |= (MR1_PARENB | MR1_PARODD);
- else
- mr1 |= (MR1_PARENB | MR1_PAREVEN);
- } else
- mr1 |= MR1_PARNONE;
-
- mr1 |= MR1_ERRBLOCK;
-
-/*
- * Set the RX FIFO threshold at 8 chars. This gives a bit of breathing
- * space for hardware flow control and the like. This should be set to
- * VMIN.
- */
- mr2 |= MR2_RXFIFOHALF;
-
-/*
- * Calculate the baud rate timers. For now we will just assume that
- * the input and output baud are the same. The sc26198 has a fixed
- * baud rate table, so only discrete baud rates possible.
- */
- baudrate = tiosp->c_cflag & CBAUD;
- if (baudrate & CBAUDEX) {
- baudrate &= ~CBAUDEX;
- if ((baudrate < 1) || (baudrate > 4))
- tiosp->c_cflag &= ~CBAUDEX;
- else
- baudrate += 15;
- }
- baudrate = stl_baudrates[baudrate];
- if ((tiosp->c_cflag & CBAUD) == B38400) {
- if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baudrate = 57600;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baudrate = 115200;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
- baudrate = 230400;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
- baudrate = 460800;
- else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
- baudrate = (portp->baud_base / portp->custom_divisor);
- }
- if (baudrate > STL_SC26198MAXBAUD)
- baudrate = STL_SC26198MAXBAUD;
-
- if (baudrate > 0)
- for (clk = 0; clk < SC26198_NRBAUDS; clk++)
- if (baudrate <= sc26198_baudtable[clk])
- break;
-
-/*
- * Check what form of modem signaling is required and set it up.
- */
- if (tiosp->c_cflag & CLOCAL) {
- portp->port.flags &= ~ASYNC_CHECK_CD;
- } else {
- iopr |= IOPR_DCDCOS;
- imron |= IR_IOPORT;
- portp->port.flags |= ASYNC_CHECK_CD;
- }
-
-/*
- * Setup sc26198 enhanced modes if we can. In particular we want to
- * handle as much of the flow control as possible automatically. As
- * well as saving a few CPU cycles it will also greatly improve flow
- * control reliability.
- */
- if (tiosp->c_iflag & IXON) {
- mr0 |= MR0_SWFTX | MR0_SWFT;
- imron |= IR_XONXOFF;
- } else
- imroff |= IR_XONXOFF;
-
- if (tiosp->c_iflag & IXOFF)
- mr0 |= MR0_SWFRX;
-
- if (tiosp->c_cflag & CRTSCTS) {
- mr2 |= MR2_AUTOCTS;
- mr1 |= MR1_AUTORTS;
- }
-
-/*
- * All sc26198 register values calculated so go through and set
- * them all up.
- */
-
- pr_debug("SETPORT: portnr=%d panelnr=%d brdnr=%d\n",
- portp->portnr, portp->panelnr, portp->brdnr);
- pr_debug(" mr0=%x mr1=%x mr2=%x clk=%x\n", mr0, mr1, mr2, clk);
- pr_debug(" iopr=%x imron=%x imroff=%x\n", iopr, imron, imroff);
- pr_debug(" schr1=%x schr2=%x schr3=%x schr4=%x\n",
- tiosp->c_cc[VSTART], tiosp->c_cc[VSTOP],
- tiosp->c_cc[VSTART], tiosp->c_cc[VSTOP]);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_sc26198setreg(portp, IMR, 0);
- stl_sc26198updatereg(portp, MR0, mr0);
- stl_sc26198updatereg(portp, MR1, mr1);
- stl_sc26198setreg(portp, SCCR, CR_RXERRBLOCK);
- stl_sc26198updatereg(portp, MR2, mr2);
- stl_sc26198updatereg(portp, IOPIOR,
- ((stl_sc26198getreg(portp, IOPIOR) & ~IPR_CHANGEMASK) | iopr));
-
- if (baudrate > 0) {
- stl_sc26198setreg(portp, TXCSR, clk);
- stl_sc26198setreg(portp, RXCSR, clk);
- }
-
- stl_sc26198setreg(portp, XONCR, tiosp->c_cc[VSTART]);
- stl_sc26198setreg(portp, XOFFCR, tiosp->c_cc[VSTOP]);
-
- ipr = stl_sc26198getreg(portp, IPR);
- if (ipr & IPR_DCD)
- portp->sigs &= ~TIOCM_CD;
- else
- portp->sigs |= TIOCM_CD;
-
- portp->imr = (portp->imr & ~imroff) | imron;
- stl_sc26198setreg(portp, IMR, portp->imr);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Set the state of the DTR and RTS signals.
- */
-
-static void stl_sc26198setsignals(struct stlport *portp, int dtr, int rts)
-{
- unsigned char iopioron, iopioroff;
- unsigned long flags;
-
- pr_debug("stl_sc26198setsignals(portp=%p,dtr=%d,rts=%d)\n", portp,
- dtr, rts);
-
- iopioron = 0;
- iopioroff = 0;
- if (dtr == 0)
- iopioroff |= IPR_DTR;
- else if (dtr > 0)
- iopioron |= IPR_DTR;
- if (rts == 0)
- iopioroff |= IPR_RTS;
- else if (rts > 0)
- iopioron |= IPR_RTS;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_sc26198setreg(portp, IOPIOR,
- ((stl_sc26198getreg(portp, IOPIOR) & ~iopioroff) | iopioron));
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Return the state of the signals.
- */
-
-static int stl_sc26198getsignals(struct stlport *portp)
-{
- unsigned char ipr;
- unsigned long flags;
- int sigs;
-
- pr_debug("stl_sc26198getsignals(portp=%p)\n", portp);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- ipr = stl_sc26198getreg(portp, IPR);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- sigs = 0;
- sigs |= (ipr & IPR_DCD) ? 0 : TIOCM_CD;
- sigs |= (ipr & IPR_CTS) ? 0 : TIOCM_CTS;
- sigs |= (ipr & IPR_DTR) ? 0: TIOCM_DTR;
- sigs |= (ipr & IPR_RTS) ? 0: TIOCM_RTS;
- sigs |= TIOCM_DSR;
- return sigs;
-}
-
-/*****************************************************************************/
-
-/*
- * Enable/Disable the Transmitter and/or Receiver.
- */
-
-static void stl_sc26198enablerxtx(struct stlport *portp, int rx, int tx)
-{
- unsigned char ccr;
- unsigned long flags;
-
- pr_debug("stl_sc26198enablerxtx(portp=%p,rx=%d,tx=%d)\n", portp, rx,tx);
-
- ccr = portp->crenable;
- if (tx == 0)
- ccr &= ~CR_TXENABLE;
- else if (tx > 0)
- ccr |= CR_TXENABLE;
- if (rx == 0)
- ccr &= ~CR_RXENABLE;
- else if (rx > 0)
- ccr |= CR_RXENABLE;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_sc26198setreg(portp, SCCR, ccr);
- BRDDISABLE(portp->brdnr);
- portp->crenable = ccr;
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Start/stop the Transmitter and/or Receiver.
- */
-
-static void stl_sc26198startrxtx(struct stlport *portp, int rx, int tx)
-{
- unsigned char imr;
- unsigned long flags;
-
- pr_debug("stl_sc26198startrxtx(portp=%p,rx=%d,tx=%d)\n", portp, rx, tx);
-
- imr = portp->imr;
- if (tx == 0)
- imr &= ~IR_TXRDY;
- else if (tx == 1)
- imr |= IR_TXRDY;
- if (rx == 0)
- imr &= ~(IR_RXRDY | IR_RXBREAK | IR_RXWATCHDOG);
- else if (rx > 0)
- imr |= IR_RXRDY | IR_RXBREAK | IR_RXWATCHDOG;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_sc26198setreg(portp, IMR, imr);
- BRDDISABLE(portp->brdnr);
- portp->imr = imr;
- if (tx > 0)
- set_bit(ASYI_TXBUSY, &portp->istate);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Disable all interrupts from this port.
- */
-
-static void stl_sc26198disableintrs(struct stlport *portp)
-{
- unsigned long flags;
-
- pr_debug("stl_sc26198disableintrs(portp=%p)\n", portp);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- portp->imr = 0;
- stl_sc26198setreg(portp, IMR, 0);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-static void stl_sc26198sendbreak(struct stlport *portp, int len)
-{
- unsigned long flags;
-
- pr_debug("stl_sc26198sendbreak(portp=%p,len=%d)\n", portp, len);
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- if (len == 1) {
- stl_sc26198setreg(portp, SCCR, CR_TXSTARTBREAK);
- portp->stats.txbreaks++;
- } else
- stl_sc26198setreg(portp, SCCR, CR_TXSTOPBREAK);
-
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Take flow control actions...
- */
-
-static void stl_sc26198flowctrl(struct stlport *portp, int state)
-{
- struct tty_struct *tty;
- unsigned long flags;
- unsigned char mr0;
-
- pr_debug("stl_sc26198flowctrl(portp=%p,state=%x)\n", portp, state);
-
- if (portp == NULL)
- return;
- tty = tty_port_tty_get(&portp->port);
- if (tty == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
-
- if (state) {
- if (tty->termios->c_iflag & IXOFF) {
- mr0 = stl_sc26198getreg(portp, MR0);
- stl_sc26198setreg(portp, MR0, (mr0 & ~MR0_SWFRXTX));
- stl_sc26198setreg(portp, SCCR, CR_TXSENDXON);
- mr0 |= MR0_SWFRX;
- portp->stats.rxxon++;
- stl_sc26198wait(portp);
- stl_sc26198setreg(portp, MR0, mr0);
- }
-/*
- * Question: should we return RTS to what it was before? It may
- * have been set by an ioctl... Suppose not, since if you have
- * hardware flow control set then it is pretty silly to go and
- * set the RTS line by hand.
- */
- if (tty->termios->c_cflag & CRTSCTS) {
- stl_sc26198setreg(portp, MR1,
- (stl_sc26198getreg(portp, MR1) | MR1_AUTORTS));
- stl_sc26198setreg(portp, IOPIOR,
- (stl_sc26198getreg(portp, IOPIOR) | IOPR_RTS));
- portp->stats.rxrtson++;
- }
- } else {
- if (tty->termios->c_iflag & IXOFF) {
- mr0 = stl_sc26198getreg(portp, MR0);
- stl_sc26198setreg(portp, MR0, (mr0 & ~MR0_SWFRXTX));
- stl_sc26198setreg(portp, SCCR, CR_TXSENDXOFF);
- mr0 &= ~MR0_SWFRX;
- portp->stats.rxxoff++;
- stl_sc26198wait(portp);
- stl_sc26198setreg(portp, MR0, mr0);
- }
- if (tty->termios->c_cflag & CRTSCTS) {
- stl_sc26198setreg(portp, MR1,
- (stl_sc26198getreg(portp, MR1) & ~MR1_AUTORTS));
- stl_sc26198setreg(portp, IOPIOR,
- (stl_sc26198getreg(portp, IOPIOR) & ~IOPR_RTS));
- portp->stats.rxrtsoff++;
- }
- }
-
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-/*
- * Send a flow control character.
- */
-
-static void stl_sc26198sendflow(struct stlport *portp, int state)
-{
- struct tty_struct *tty;
- unsigned long flags;
- unsigned char mr0;
-
- pr_debug("stl_sc26198sendflow(portp=%p,state=%x)\n", portp, state);
-
- if (portp == NULL)
- return;
- tty = tty_port_tty_get(&portp->port);
- if (tty == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- if (state) {
- mr0 = stl_sc26198getreg(portp, MR0);
- stl_sc26198setreg(portp, MR0, (mr0 & ~MR0_SWFRXTX));
- stl_sc26198setreg(portp, SCCR, CR_TXSENDXON);
- mr0 |= MR0_SWFRX;
- portp->stats.rxxon++;
- stl_sc26198wait(portp);
- stl_sc26198setreg(portp, MR0, mr0);
- } else {
- mr0 = stl_sc26198getreg(portp, MR0);
- stl_sc26198setreg(portp, MR0, (mr0 & ~MR0_SWFRXTX));
- stl_sc26198setreg(portp, SCCR, CR_TXSENDXOFF);
- mr0 &= ~MR0_SWFRX;
- portp->stats.rxxoff++;
- stl_sc26198wait(portp);
- stl_sc26198setreg(portp, MR0, mr0);
- }
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-static void stl_sc26198flush(struct stlport *portp)
-{
- unsigned long flags;
-
- pr_debug("stl_sc26198flush(portp=%p)\n", portp);
-
- if (portp == NULL)
- return;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- stl_sc26198setreg(portp, SCCR, CR_TXRESET);
- stl_sc26198setreg(portp, SCCR, portp->crenable);
- BRDDISABLE(portp->brdnr);
- portp->tx.tail = portp->tx.head;
- spin_unlock_irqrestore(&brd_lock, flags);
-}
-
-/*****************************************************************************/
-
-/*
- * Return the current state of data flow on this port. This is only
- * really interesting when determining if data has fully completed
- * transmission or not... The sc26198 interrupt scheme cannot
- * determine when all data has actually drained, so we need to
- * check the port statusy register to be sure.
- */
-
-static int stl_sc26198datastate(struct stlport *portp)
-{
- unsigned long flags;
- unsigned char sr;
-
- pr_debug("stl_sc26198datastate(portp=%p)\n", portp);
-
- if (portp == NULL)
- return 0;
- if (test_bit(ASYI_TXBUSY, &portp->istate))
- return 1;
-
- spin_lock_irqsave(&brd_lock, flags);
- BRDENABLE(portp->brdnr, portp->pagenr);
- sr = stl_sc26198getreg(portp, SR);
- BRDDISABLE(portp->brdnr);
- spin_unlock_irqrestore(&brd_lock, flags);
-
- return (sr & SR_TXEMPTY) ? 0 : 1;
-}
-
-/*****************************************************************************/
-
-/*
- * Delay for a small amount of time, to give the sc26198 a chance
- * to process a command...
- */
-
-static void stl_sc26198wait(struct stlport *portp)
-{
- int i;
-
- pr_debug("stl_sc26198wait(portp=%p)\n", portp);
-
- if (portp == NULL)
- return;
-
- for (i = 0; i < 20; i++)
- stl_sc26198getglobreg(portp, TSTR);
-}
-
-/*****************************************************************************/
-
-/*
- * If we are TX flow controlled and in IXANY mode then we may
- * need to unflow control here. We gotta do this because of the
- * automatic flow control modes of the sc26198.
- */
-
-static void stl_sc26198txunflow(struct stlport *portp, struct tty_struct *tty)
-{
- unsigned char mr0;
-
- mr0 = stl_sc26198getreg(portp, MR0);
- stl_sc26198setreg(portp, MR0, (mr0 & ~MR0_SWFRXTX));
- stl_sc26198setreg(portp, SCCR, CR_HOSTXON);
- stl_sc26198wait(portp);
- stl_sc26198setreg(portp, MR0, mr0);
- clear_bit(ASYI_TXFLOWED, &portp->istate);
-}
-
-/*****************************************************************************/
-
-/*
- * Interrupt service routine for sc26198 panels.
- */
-
-static void stl_sc26198intr(struct stlpanel *panelp, unsigned int iobase)
-{
- struct stlport *portp;
- unsigned int iack;
-
- spin_lock(&brd_lock);
-
-/*
- * Work around bug in sc26198 chip... Cannot have A6 address
- * line of UART high, else iack will be returned as 0.
- */
- outb(0, (iobase + 1));
-
- iack = inb(iobase + XP_IACK);
- portp = panelp->ports[(iack & IVR_CHANMASK) + ((iobase & 0x4) << 1)];
-
- if (iack & IVR_RXDATA)
- stl_sc26198rxisr(portp, iack);
- else if (iack & IVR_TXDATA)
- stl_sc26198txisr(portp);
- else
- stl_sc26198otherisr(portp, iack);
-
- spin_unlock(&brd_lock);
-}
-
-/*****************************************************************************/
-
-/*
- * Transmit interrupt handler. This has gotta be fast! Handling TX
- * chars is pretty simple, stuff as many as possible from the TX buffer
- * into the sc26198 FIFO.
- * In practice it is possible that interrupts are enabled but that the
- * port has been hung up. Need to handle not having any TX buffer here,
- * this is done by using the side effect that head and tail will also
- * be NULL if the buffer has been freed.
- */
-
-static void stl_sc26198txisr(struct stlport *portp)
-{
- struct tty_struct *tty;
- unsigned int ioaddr;
- unsigned char mr0;
- int len, stlen;
- char *head, *tail;
-
- pr_debug("stl_sc26198txisr(portp=%p)\n", portp);
-
- ioaddr = portp->ioaddr;
- head = portp->tx.head;
- tail = portp->tx.tail;
- len = (head >= tail) ? (head - tail) : (STL_TXBUFSIZE - (tail - head));
- if ((len == 0) || ((len < STL_TXBUFLOW) &&
- (test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
- set_bit(ASYI_TXLOW, &portp->istate);
- tty = tty_port_tty_get(&portp->port);
- if (tty) {
- tty_wakeup(tty);
- tty_kref_put(tty);
- }
- }
-
- if (len == 0) {
- outb((MR0 | portp->uartaddr), (ioaddr + XP_ADDR));
- mr0 = inb(ioaddr + XP_DATA);
- if ((mr0 & MR0_TXMASK) == MR0_TXEMPTY) {
- portp->imr &= ~IR_TXRDY;
- outb((IMR | portp->uartaddr), (ioaddr + XP_ADDR));
- outb(portp->imr, (ioaddr + XP_DATA));
- clear_bit(ASYI_TXBUSY, &portp->istate);
- } else {
- mr0 |= ((mr0 & ~MR0_TXMASK) | MR0_TXEMPTY);
- outb(mr0, (ioaddr + XP_DATA));
- }
- } else {
- len = min(len, SC26198_TXFIFOSIZE);
- portp->stats.txtotal += len;
- stlen = min_t(unsigned int, len,
- (portp->tx.buf + STL_TXBUFSIZE) - tail);
- outb(GTXFIFO, (ioaddr + XP_ADDR));
- outsb((ioaddr + XP_DATA), tail, stlen);
- len -= stlen;
- tail += stlen;
- if (tail >= (portp->tx.buf + STL_TXBUFSIZE))
- tail = portp->tx.buf;
- if (len > 0) {
- outsb((ioaddr + XP_DATA), tail, len);
- tail += len;
- }
- portp->tx.tail = tail;
- }
-}
-
-/*****************************************************************************/
-
-/*
- * Receive character interrupt handler. Determine if we have good chars
- * or bad chars and then process appropriately. Good chars are easy
- * just shove the lot into the RX buffer and set all status byte to 0.
- * If a bad RX char then process as required. This routine needs to be
- * fast! In practice it is possible that we get an interrupt on a port
- * that is closed. This can happen on hangups - since they completely
- * shutdown a port not in user context. Need to handle this case.
- */
-
-static void stl_sc26198rxisr(struct stlport *portp, unsigned int iack)
-{
- struct tty_struct *tty;
- unsigned int len, buflen, ioaddr;
-
- pr_debug("stl_sc26198rxisr(portp=%p,iack=%x)\n", portp, iack);
-
- tty = tty_port_tty_get(&portp->port);
- ioaddr = portp->ioaddr;
- outb(GIBCR, (ioaddr + XP_ADDR));
- len = inb(ioaddr + XP_DATA) + 1;
-
- if ((iack & IVR_TYPEMASK) == IVR_RXDATA) {
- if (tty == NULL || (buflen = tty_buffer_request_room(tty, len)) == 0) {
- len = min_t(unsigned int, len, sizeof(stl_unwanted));
- outb(GRXFIFO, (ioaddr + XP_ADDR));
- insb((ioaddr + XP_DATA), &stl_unwanted[0], len);
- portp->stats.rxlost += len;
- portp->stats.rxtotal += len;
- } else {
- len = min(len, buflen);
- if (len > 0) {
- unsigned char *ptr;
- outb(GRXFIFO, (ioaddr + XP_ADDR));
- tty_prepare_flip_string(tty, &ptr, len);
- insb((ioaddr + XP_DATA), ptr, len);
- tty_schedule_flip(tty);
- portp->stats.rxtotal += len;
- }
- }
- } else {
- stl_sc26198rxbadchars(portp);
- }
-
-/*
- * If we are TX flow controlled and in IXANY mode then we may need
- * to unflow control here. We gotta do this because of the automatic
- * flow control modes of the sc26198.
- */
- if (test_bit(ASYI_TXFLOWED, &portp->istate)) {
- if ((tty != NULL) &&
- (tty->termios != NULL) &&
- (tty->termios->c_iflag & IXANY)) {
- stl_sc26198txunflow(portp, tty);
- }
- }
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-/*
- * Process an RX bad character.
- */
-
-static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char ch)
-{
- struct tty_struct *tty;
- unsigned int ioaddr;
-
- tty = tty_port_tty_get(&portp->port);
- ioaddr = portp->ioaddr;
-
- if (status & SR_RXPARITY)
- portp->stats.rxparity++;
- if (status & SR_RXFRAMING)
- portp->stats.rxframing++;
- if (status & SR_RXOVERRUN)
- portp->stats.rxoverrun++;
- if (status & SR_RXBREAK)
- portp->stats.rxbreaks++;
-
- if ((tty != NULL) &&
- ((portp->rxignoremsk & status) == 0)) {
- if (portp->rxmarkmsk & status) {
- if (status & SR_RXBREAK) {
- status = TTY_BREAK;
- if (portp->port.flags & ASYNC_SAK) {
- do_SAK(tty);
- BRDENABLE(portp->brdnr, portp->pagenr);
- }
- } else if (status & SR_RXPARITY)
- status = TTY_PARITY;
- else if (status & SR_RXFRAMING)
- status = TTY_FRAME;
- else if(status & SR_RXOVERRUN)
- status = TTY_OVERRUN;
- else
- status = 0;
- } else
- status = 0;
-
- tty_insert_flip_char(tty, ch, status);
- tty_schedule_flip(tty);
-
- if (status == 0)
- portp->stats.rxtotal++;
- }
- tty_kref_put(tty);
-}
-
-/*****************************************************************************/
-
-/*
- * Process all characters in the RX FIFO of the UART. Check all char
- * status bytes as well, and process as required. We need to check
- * all bytes in the FIFO, in case some more enter the FIFO while we
- * are here. To get the exact character error type we need to switch
- * into CHAR error mode (that is why we need to make sure we empty
- * the FIFO).
- */
-
-static void stl_sc26198rxbadchars(struct stlport *portp)
-{
- unsigned char status, mr1;
- char ch;
-
-/*
- * To get the precise error type for each character we must switch
- * back into CHAR error mode.
- */
- mr1 = stl_sc26198getreg(portp, MR1);
- stl_sc26198setreg(portp, MR1, (mr1 & ~MR1_ERRBLOCK));
-
- while ((status = stl_sc26198getreg(portp, SR)) & SR_RXRDY) {
- stl_sc26198setreg(portp, SCCR, CR_CLEARRXERR);
- ch = stl_sc26198getreg(portp, RXFIFO);
- stl_sc26198rxbadch(portp, status, ch);
- }
-
-/*
- * To get correct interrupt class we must switch back into BLOCK
- * error mode.
- */
- stl_sc26198setreg(portp, MR1, mr1);
-}
-
-/*****************************************************************************/
-
-/*
- * Other interrupt handler. This includes modem signals, flow
- * control actions, etc. Most stuff is left to off-level interrupt
- * processing time.
- */
-
-static void stl_sc26198otherisr(struct stlport *portp, unsigned int iack)
-{
- unsigned char cir, ipr, xisr;
-
- pr_debug("stl_sc26198otherisr(portp=%p,iack=%x)\n", portp, iack);
-
- cir = stl_sc26198getglobreg(portp, CIR);
-
- switch (cir & CIR_SUBTYPEMASK) {
- case CIR_SUBCOS:
- ipr = stl_sc26198getreg(portp, IPR);
- if (ipr & IPR_DCDCHANGE) {
- stl_cd_change(portp);
- portp->stats.modem++;
- }
- break;
- case CIR_SUBXONXOFF:
- xisr = stl_sc26198getreg(portp, XISR);
- if (xisr & XISR_RXXONGOT) {
- set_bit(ASYI_TXFLOWED, &portp->istate);
- portp->stats.txxoff++;
- }
- if (xisr & XISR_RXXOFFGOT) {
- clear_bit(ASYI_TXFLOWED, &portp->istate);
- portp->stats.txxon++;
- }
- break;
- case CIR_SUBBREAK:
- stl_sc26198setreg(portp, SCCR, CR_BREAKRESET);
- stl_sc26198rxbadchars(portp);
- break;
- default:
- break;
- }
-}
-
-static void stl_free_isabrds(void)
-{
- struct stlbrd *brdp;
- unsigned int i;
-
- for (i = 0; i < stl_nrbrds; i++) {
- if ((brdp = stl_brds[i]) == NULL || (brdp->state & STL_PROBED))
- continue;
-
- free_irq(brdp->irq, brdp);
-
- stl_cleanup_panels(brdp);
-
- release_region(brdp->ioaddr1, brdp->iosize1);
- if (brdp->iosize2 > 0)
- release_region(brdp->ioaddr2, brdp->iosize2);
-
- kfree(brdp);
- stl_brds[i] = NULL;
- }
-}
-
-/*
- * Loadable module initialization stuff.
- */
-static int __init stallion_module_init(void)
-{
- struct stlbrd *brdp;
- struct stlconf conf;
- unsigned int i, j;
- int retval;
-
- printk(KERN_INFO "%s: version %s\n", stl_drvtitle, stl_drvversion);
-
- spin_lock_init(&stallion_lock);
- spin_lock_init(&brd_lock);
-
- stl_serial = alloc_tty_driver(STL_MAXBRDS * STL_MAXPORTS);
- if (!stl_serial) {
- retval = -ENOMEM;
- goto err;
- }
-
- stl_serial->owner = THIS_MODULE;
- stl_serial->driver_name = stl_drvname;
- stl_serial->name = "ttyE";
- stl_serial->major = STL_SERIALMAJOR;
- stl_serial->minor_start = 0;
- stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
- stl_serial->subtype = SERIAL_TYPE_NORMAL;
- stl_serial->init_termios = stl_deftermios;
- stl_serial->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(stl_serial, &stl_ops);
-
- retval = tty_register_driver(stl_serial);
- if (retval) {
- printk("STALLION: failed to register serial driver\n");
- goto err_frtty;
- }
-
-/*
- * Find any dynamically supported boards. That is via module load
- * line options.
- */
- for (i = stl_nrbrds; i < stl_nargs; i++) {
- memset(&conf, 0, sizeof(conf));
- if (stl_parsebrd(&conf, stl_brdsp[i]) == 0)
- continue;
- if ((brdp = stl_allocbrd()) == NULL)
- continue;
- brdp->brdnr = i;
- brdp->brdtype = conf.brdtype;
- brdp->ioaddr1 = conf.ioaddr1;
- brdp->ioaddr2 = conf.ioaddr2;
- brdp->irq = conf.irq;
- brdp->irqtype = conf.irqtype;
- stl_brds[brdp->brdnr] = brdp;
- if (stl_brdinit(brdp)) {
- stl_brds[brdp->brdnr] = NULL;
- kfree(brdp);
- } else {
- for (j = 0; j < brdp->nrports; j++)
- tty_register_device(stl_serial,
- brdp->brdnr * STL_MAXPORTS + j, NULL);
- stl_nrbrds = i + 1;
- }
- }
-
- /* this has to be _after_ isa finding because of locking */
- retval = pci_register_driver(&stl_pcidriver);
- if (retval && stl_nrbrds == 0) {
- printk(KERN_ERR "STALLION: can't register pci driver\n");
- goto err_unrtty;
- }
-
-/*
- * Set up a character driver for per board stuff. This is mainly used
- * to do stats ioctls on the ports.
- */
- if (register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stl_fsiomem))
- printk("STALLION: failed to register serial board device\n");
-
- stallion_class = class_create(THIS_MODULE, "staliomem");
- if (IS_ERR(stallion_class))
- printk("STALLION: failed to create class\n");
- for (i = 0; i < 4; i++)
- device_create(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i),
- NULL, "staliomem%d", i);
-
- return 0;
-err_unrtty:
- tty_unregister_driver(stl_serial);
-err_frtty:
- put_tty_driver(stl_serial);
-err:
- return retval;
-}
-
-static void __exit stallion_module_exit(void)
-{
- struct stlbrd *brdp;
- unsigned int i, j;
-
- pr_debug("cleanup_module()\n");
-
- printk(KERN_INFO "Unloading %s: version %s\n", stl_drvtitle,
- stl_drvversion);
-
-/*
- * Free up all allocated resources used by the ports. This includes
- * memory and interrupts. As part of this process we will also do
- * a hangup on every open port - to try to flush out any processes
- * hanging onto ports.
- */
- for (i = 0; i < stl_nrbrds; i++) {
- if ((brdp = stl_brds[i]) == NULL || (brdp->state & STL_PROBED))
- continue;
- for (j = 0; j < brdp->nrports; j++)
- tty_unregister_device(stl_serial,
- brdp->brdnr * STL_MAXPORTS + j);
- }
-
- for (i = 0; i < 4; i++)
- device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
- unregister_chrdev(STL_SIOMEMMAJOR, "staliomem");
- class_destroy(stallion_class);
-
- pci_unregister_driver(&stl_pcidriver);
-
- stl_free_isabrds();
-
- tty_unregister_driver(stl_serial);
- put_tty_driver(stl_serial);
-}
-
-module_init(stallion_module_init);
-module_exit(stallion_module_exit);
-
-MODULE_AUTHOR("Greg Ungerer");
-MODULE_DESCRIPTION("Stallion Multiport Serial Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
deleted file mode 100644
index a786326cea2..00000000000
--- a/drivers/char/sx.c
+++ /dev/null
@@ -1,2894 +0,0 @@
-/* sx.c -- driver for the Specialix SX series cards.
- *
- * This driver will also support the older SI, and XIO cards.
- *
- *
- * (C) 1998 - 2004 R.E.Wolff@BitWizard.nl
- *
- * Simon Allen (simonallen@cix.compulink.co.uk) wrote a previous
- * version of this driver. Some fragments may have been copied. (none
- * yet :-)
- *
- * Specialix pays for the development and support of this driver.
- * Please DO contact support@specialix.co.uk if you require
- * support. But please read the documentation (sx.txt) first.
- *
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- *
- * Revision history:
- * Revision 1.33 2000/03/09 10:00:00 pvdl,wolff
- * - Fixed module and port counting
- * - Fixed signal handling
- * - Fixed an Ooops
- *
- * Revision 1.32 2000/03/07 09:00:00 wolff,pvdl
- * - Fixed some sx_dprintk typos
- * - added detection for an invalid board/module configuration
- *
- * Revision 1.31 2000/03/06 12:00:00 wolff,pvdl
- * - Added support for EISA
- *
- * Revision 1.30 2000/01/21 17:43:06 wolff
- * - Added support for SX+
- *
- * Revision 1.26 1999/08/05 15:22:14 wolff
- * - Port to 2.3.x
- * - Reformatted to Linus' liking.
- *
- * Revision 1.25 1999/07/30 14:24:08 wolff
- * Had accidentally left "gs_debug" set to "-1" instead of "off" (=0).
- *
- * Revision 1.24 1999/07/28 09:41:52 wolff
- * - I noticed the remark about use-count straying in sx.txt. I checked
- * sx_open, and found a few places where that could happen. I hope it's
- * fixed now.
- *
- * Revision 1.23 1999/07/28 08:56:06 wolff
- * - Fixed crash when sx_firmware run twice.
- * - Added sx_slowpoll as a module parameter (I guess nobody really wanted
- * to change it from the default... )
- * - Fixed a stupid editing problem I introduced in 1.22.
- * - Fixed dropping characters on a termios change.
- *
- * Revision 1.22 1999/07/26 21:01:43 wolff
- * Russell Brown noticed that I had overlooked 4 out of six modem control
- * signals in sx_getsignals. Ooops.
- *
- * Revision 1.21 1999/07/23 09:11:33 wolff
- * I forgot to free dynamically allocated memory when the driver is unloaded.
- *
- * Revision 1.20 1999/07/20 06:25:26 wolff
- * The "closing wait" wasn't honoured. Thanks to James Griffiths for
- * reporting this.
- *
- * Revision 1.19 1999/07/11 08:59:59 wolff
- * Fixed an oops in close, when an open was pending. Changed the memtest
- * a bit. Should also test the board in word-mode, however my card fails the
- * memtest then. I still have to figure out what is wrong...
- *
- * Revision 1.18 1999/06/10 09:38:42 wolff
- * Changed the format of the firmware revision from %04x to %x.%02x .
- *
- * Revision 1.17 1999/06/04 09:44:35 wolff
- * fixed problem: reference to pci stuff when config_pci was off...
- * Thanks to Jorge Novo for noticing this.
- *
- * Revision 1.16 1999/06/02 08:30:15 wolff
- * added/removed the workaround for the DCD bug in the Firmware.
- * A bit more debugging code to locate that...
- *
- * Revision 1.15 1999/06/01 11:35:30 wolff
- * when DCD is left low (floating?), on TA's the firmware first tells us
- * that DCD is high, but after a short while suddenly comes to the
- * conclusion that it is low. All this would be fine, if it weren't that
- * Unix requires us to send a "hangup" signal in that case. This usually
- * all happens BEFORE the program has had a chance to ioctl the device
- * into clocal mode..
- *
- * Revision 1.14 1999/05/25 11:18:59 wolff
- * Added PCI-fix.
- * Added checks for return code of sx_sendcommand.
- * Don't issue "reconfig" if port isn't open yet. (bit us on TA modules...)
- *
- * Revision 1.13 1999/04/29 15:18:01 wolff
- * Fixed an "oops" that showed on SuSE 6.0 systems.
- * Activate DTR again after stty 0.
- *
- * Revision 1.12 1999/04/29 07:49:52 wolff
- * Improved "stty 0" handling a bit. (used to change baud to 9600 assuming
- * the connection would be dropped anyway. That is not always the case,
- * and confuses people).
- * Told the card to always monitor the modem signals.
- * Added support for dynamic gs_debug adjustments.
- * Now tells the rest of the system the number of ports.
- *
- * Revision 1.11 1999/04/24 11:11:30 wolff
- * Fixed two stupid typos in the memory test.
- *
- * Revision 1.10 1999/04/24 10:53:39 wolff
- * Added some of Christian's suggestions.
- * Fixed an HW_COOK_IN bug (ISIG was not in I_OTHER. We used to trust the
- * card to send the signal to the process.....)
- *
- * Revision 1.9 1999/04/23 07:26:38 wolff
- * Included Christian Lademann's 2.0 compile-warning fixes and interrupt
- * assignment redesign.
- * Cleanup of some other stuff.
- *
- * Revision 1.8 1999/04/16 13:05:30 wolff
- * fixed a DCD change unnoticed bug.
- *
- * Revision 1.7 1999/04/14 22:19:51 wolff
- * Fixed typo that showed up in 2.0.x builds (get_user instead of Get_user!)
- *
- * Revision 1.6 1999/04/13 18:40:20 wolff
- * changed misc-minor to 161, as assigned by HPA.
- *
- * Revision 1.5 1999/04/13 15:12:25 wolff
- * Fixed use-count leak when "hangup" occurred.
- * Added workaround for a stupid-PCIBIOS bug.
- *
- *
- * Revision 1.4 1999/04/01 22:47:40 wolff
- * Fixed < 1M linux-2.0 problem.
- * (vremap isn't compatible with ioremap in that case)
- *
- * Revision 1.3 1999/03/31 13:45:45 wolff
- * Firmware loading is now done through a separate IOCTL.
- *
- * Revision 1.2 1999/03/28 12:22:29 wolff
- * rcs cleanup
- *
- * Revision 1.1 1999/03/28 12:10:34 wolff
- * Readying for release on 2.0.x (sorry David, 1.01 becomes 1.1 for RCS).
- *
- * Revision 0.12 1999/03/28 09:20:10 wolff
- * Fixed problem in 0.11, continueing cleanup.
- *
- * Revision 0.11 1999/03/28 08:46:44 wolff
- * cleanup. Not good.
- *
- * Revision 0.10 1999/03/28 08:09:43 wolff
- * Fixed loosing characters on close.
- *
- * Revision 0.9 1999/03/21 22:52:01 wolff
- * Ported back to 2.2.... (minor things)
- *
- * Revision 0.8 1999/03/21 22:40:33 wolff
- * Port to 2.0
- *
- * Revision 0.7 1999/03/21 19:06:34 wolff
- * Fixed hangup processing.
- *
- * Revision 0.6 1999/02/05 08:45:14 wolff
- * fixed real_raw problems. Inclusion into kernel imminent.
- *
- * Revision 0.5 1998/12/21 23:51:06 wolff
- * Snatched a nasty bug: sx_transmit_chars was getting re-entered, and it
- * shouldn't have. THATs why I want to have transmit interrupts even when
- * the buffer is empty.
- *
- * Revision 0.4 1998/12/17 09:34:46 wolff
- * PPP works. ioctl works. Basically works!
- *
- * Revision 0.3 1998/12/15 13:05:18 wolff
- * It works! Wow! Gotta start implementing IOCTL and stuff....
- *
- * Revision 0.2 1998/12/01 08:33:53 wolff
- * moved over to 2.1.130
- *
- * Revision 0.1 1998/11/03 21:23:51 wolff
- * Initial revision. Detects SX card.
- *
- * */
-
-#define SX_VERSION 1.33
-
-#include <linux/module.h>
-#include <linux/kdev_t.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/delay.h>
-#include <linux/eisa.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/miscdevice.h>
-#include <linux/bitops.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-/* The 3.0.0 version of sxboards/sxwindow.h uses BYTE and WORD.... */
-#define BYTE u8
-#define WORD u16
-
-/* .... but the 3.0.4 version uses _u8 and _u16. */
-#define _u8 u8
-#define _u16 u16
-
-#include "sxboards.h"
-#include "sxwindow.h"
-
-#include <linux/generic_serial.h>
-#include "sx.h"
-
-/* I don't think that this driver can handle more than 256 ports on
- one machine. You'll have to increase the number of boards in sx.h
- if you want more than 4 boards. */
-
-#ifndef PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8
-#define PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8 0x2000
-#endif
-
-/* Configurable options:
- (Don't be too sure that it'll work if you toggle them) */
-
-/* Am I paranoid or not ? ;-) */
-#undef SX_PARANOIA_CHECK
-
-/* 20 -> 2000 per second. The card should rate-limit interrupts at 100
- Hz, but it is user configurable. I don't recommend going above 1000
- Hz. The interrupt ratelimit might trigger if the interrupt is
- shared with a very active other device. */
-#define IRQ_RATE_LIMIT 20
-
-/* Sharing interrupts is possible now. If the other device wants more
- than 2000 interrupts per second, we'd gracefully decline further
- interrupts. That's not what we want. On the other hand, if the
- other device interrupts 2000 times a second, don't use the SX
- interrupt. Use polling. */
-#undef IRQ_RATE_LIMIT
-
-#if 0
-/* Not implemented */
-/*
- * The following defines are mostly for testing purposes. But if you need
- * some nice reporting in your syslog, you can define them also.
- */
-#define SX_REPORT_FIFO
-#define SX_REPORT_OVERRUN
-#endif
-
-/* Function prototypes */
-static void sx_disable_tx_interrupts(void *ptr);
-static void sx_enable_tx_interrupts(void *ptr);
-static void sx_disable_rx_interrupts(void *ptr);
-static void sx_enable_rx_interrupts(void *ptr);
-static int sx_carrier_raised(struct tty_port *port);
-static void sx_shutdown_port(void *ptr);
-static int sx_set_real_termios(void *ptr);
-static void sx_close(void *ptr);
-static int sx_chars_in_buffer(void *ptr);
-static int sx_init_board(struct sx_board *board);
-static int sx_init_portstructs(int nboards, int nports);
-static long sx_fw_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg);
-static int sx_init_drivers(void);
-
-static struct tty_driver *sx_driver;
-
-static DEFINE_MUTEX(sx_boards_lock);
-static struct sx_board boards[SX_NBOARDS];
-static struct sx_port *sx_ports;
-static int sx_initialized;
-static int sx_nports;
-static int sx_debug;
-
-/* You can have the driver poll your card.
- - Set sx_poll to 1 to poll every timer tick (10ms on Intel).
- This is used when the card cannot use an interrupt for some reason.
-
- - set sx_slowpoll to 100 to do an extra poll once a second (on Intel). If
- the driver misses an interrupt (report this if it DOES happen to you!)
- everything will continue to work....
- */
-static int sx_poll = 1;
-static int sx_slowpoll;
-
-/* The card limits the number of interrupts per second.
- At 115k2 "100" should be sufficient.
- If you're using higher baudrates, you can increase this...
- */
-
-static int sx_maxints = 100;
-
-#ifdef CONFIG_ISA
-
-/* These are the only open spaces in my computer. Yours may have more
- or less.... -- REW
- duh: Card at 0xa0000 is possible on HP Netserver?? -- pvdl
-*/
-static int sx_probe_addrs[] = {
- 0xc0000, 0xd0000, 0xe0000,
- 0xc8000, 0xd8000, 0xe8000
-};
-static int si_probe_addrs[] = {
- 0xc0000, 0xd0000, 0xe0000,
- 0xc8000, 0xd8000, 0xe8000, 0xa0000
-};
-static int si1_probe_addrs[] = {
- 0xd0000
-};
-
-#define NR_SX_ADDRS ARRAY_SIZE(sx_probe_addrs)
-#define NR_SI_ADDRS ARRAY_SIZE(si_probe_addrs)
-#define NR_SI1_ADDRS ARRAY_SIZE(si1_probe_addrs)
-
-module_param_array(sx_probe_addrs, int, NULL, 0);
-module_param_array(si_probe_addrs, int, NULL, 0);
-#endif
-
-/* Set the mask to all-ones. This alas, only supports 32 interrupts.
- Some architectures may need more. */
-static int sx_irqmask = -1;
-
-module_param(sx_poll, int, 0);
-module_param(sx_slowpoll, int, 0);
-module_param(sx_maxints, int, 0);
-module_param(sx_debug, int, 0);
-module_param(sx_irqmask, int, 0);
-
-MODULE_LICENSE("GPL");
-
-static struct real_driver sx_real_driver = {
- sx_disable_tx_interrupts,
- sx_enable_tx_interrupts,
- sx_disable_rx_interrupts,
- sx_enable_rx_interrupts,
- sx_shutdown_port,
- sx_set_real_termios,
- sx_chars_in_buffer,
- sx_close,
-};
-
-/*
- This driver can spew a whole lot of debugging output at you. If you
- need maximum performance, you should disable the DEBUG define. To
- aid in debugging in the field, I'm leaving the compile-time debug
- features enabled, and disable them "runtime". That allows me to
- instruct people with problems to enable debugging without requiring
- them to recompile...
-*/
-#define DEBUG
-
-#ifdef DEBUG
-#define sx_dprintk(f, str...) if (sx_debug & f) printk (str)
-#else
-#define sx_dprintk(f, str...) /* nothing */
-#endif
-
-#define func_enter() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s\n",__func__)
-#define func_exit() sx_dprintk(SX_DEBUG_FLOW, "sx: exit %s\n",__func__)
-
-#define func_enter2() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s (port %d)\n", \
- __func__, port->line)
-
-/*
- * Firmware loader driver specific routines
- *
- */
-
-static const struct file_operations sx_fw_fops = {
- .owner = THIS_MODULE,
- .unlocked_ioctl = sx_fw_ioctl,
- .llseek = noop_llseek,
-};
-
-static struct miscdevice sx_fw_device = {
- SXCTL_MISC_MINOR, "sxctl", &sx_fw_fops
-};
-
-#ifdef SX_PARANOIA_CHECK
-
-/* This doesn't work. Who's paranoid around here? Not me! */
-
-static inline int sx_paranoia_check(struct sx_port const *port,
- char *name, const char *routine)
-{
- static const char *badmagic = KERN_ERR "sx: Warning: bad sx port magic "
- "number for device %s in %s\n";
- static const char *badinfo = KERN_ERR "sx: Warning: null sx port for "
- "device %s in %s\n";
-
- if (!port) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (port->magic != SX_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-
- return 0;
-}
-#else
-#define sx_paranoia_check(a,b,c) 0
-#endif
-
-/* The timeouts. First try 30 times as fast as possible. Then give
- the card some time to breathe between accesses. (Otherwise the
- processor on the card might not be able to access its OWN bus... */
-
-#define TIMEOUT_1 30
-#define TIMEOUT_2 1000000
-
-#ifdef DEBUG
-static void my_hd_io(void __iomem *p, int len)
-{
- int i, j, ch;
- unsigned char __iomem *addr = p;
-
- for (i = 0; i < len; i += 16) {
- printk("%p ", addr + i);
- for (j = 0; j < 16; j++) {
- printk("%02x %s", readb(addr + j + i),
- (j == 7) ? " " : "");
- }
- for (j = 0; j < 16; j++) {
- ch = readb(addr + j + i);
- printk("%c", (ch < 0x20) ? '.' :
- ((ch > 0x7f) ? '.' : ch));
- }
- printk("\n");
- }
-}
-static void my_hd(void *p, int len)
-{
- int i, j, ch;
- unsigned char *addr = p;
-
- for (i = 0; i < len; i += 16) {
- printk("%p ", addr + i);
- for (j = 0; j < 16; j++) {
- printk("%02x %s", addr[j + i], (j == 7) ? " " : "");
- }
- for (j = 0; j < 16; j++) {
- ch = addr[j + i];
- printk("%c", (ch < 0x20) ? '.' :
- ((ch > 0x7f) ? '.' : ch));
- }
- printk("\n");
- }
-}
-#endif
-
-/* This needs redoing for Alpha -- REW -- Done. */
-
-static inline void write_sx_byte(struct sx_board *board, int offset, u8 byte)
-{
- writeb(byte, board->base + offset);
-}
-
-static inline u8 read_sx_byte(struct sx_board *board, int offset)
-{
- return readb(board->base + offset);
-}
-
-static inline void write_sx_word(struct sx_board *board, int offset, u16 word)
-{
- writew(word, board->base + offset);
-}
-
-static inline u16 read_sx_word(struct sx_board *board, int offset)
-{
- return readw(board->base + offset);
-}
-
-static int sx_busy_wait_eq(struct sx_board *board,
- int offset, int mask, int correctval)
-{
- int i;
-
- func_enter();
-
- for (i = 0; i < TIMEOUT_1; i++)
- if ((read_sx_byte(board, offset) & mask) == correctval) {
- func_exit();
- return 1;
- }
-
- for (i = 0; i < TIMEOUT_2; i++) {
- if ((read_sx_byte(board, offset) & mask) == correctval) {
- func_exit();
- return 1;
- }
- udelay(1);
- }
-
- func_exit();
- return 0;
-}
-
-static int sx_busy_wait_neq(struct sx_board *board,
- int offset, int mask, int badval)
-{
- int i;
-
- func_enter();
-
- for (i = 0; i < TIMEOUT_1; i++)
- if ((read_sx_byte(board, offset) & mask) != badval) {
- func_exit();
- return 1;
- }
-
- for (i = 0; i < TIMEOUT_2; i++) {
- if ((read_sx_byte(board, offset) & mask) != badval) {
- func_exit();
- return 1;
- }
- udelay(1);
- }
-
- func_exit();
- return 0;
-}
-
-/* 5.6.4 of 6210028 r2.3 */
-static int sx_reset(struct sx_board *board)
-{
- func_enter();
-
- if (IS_SX_BOARD(board)) {
-
- write_sx_byte(board, SX_CONFIG, 0);
- write_sx_byte(board, SX_RESET, 1); /* Value doesn't matter */
-
- if (!sx_busy_wait_eq(board, SX_RESET_STATUS, 1, 0)) {
- printk(KERN_INFO "sx: Card doesn't respond to "
- "reset...\n");
- return 0;
- }
- } else if (IS_EISA_BOARD(board)) {
- outb(board->irq << 4, board->eisa_base + 0xc02);
- } else if (IS_SI1_BOARD(board)) {
- write_sx_byte(board, SI1_ISA_RESET, 0); /*value doesn't matter*/
- } else {
- /* Gory details of the SI/ISA board */
- write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_SET);
- write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_CLEAR);
- write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_CLEAR);
- write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_CLEAR);
- write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_CLEAR);
- write_sx_byte(board, SI2_ISA_IRQSET, SI2_ISA_IRQSET_CLEAR);
- }
-
- func_exit();
- return 1;
-}
-
-/* This doesn't work on machines where "NULL" isn't 0 */
-/* If you have one of those, someone will need to write
- the equivalent of this, which will amount to about 3 lines. I don't
- want to complicate this right now. -- REW
- (See, I do write comments every now and then :-) */
-#define OFFSETOF(strct, elem) ((long)&(((struct strct *)NULL)->elem))
-
-#define CHAN_OFFSET(port,elem) (port->ch_base + OFFSETOF (_SXCHANNEL, elem))
-#define MODU_OFFSET(board,addr,elem) (addr + OFFSETOF (_SXMODULE, elem))
-#define BRD_OFFSET(board,elem) (OFFSETOF (_SXCARD, elem))
-
-#define sx_write_channel_byte(port, elem, val) \
- write_sx_byte (port->board, CHAN_OFFSET (port, elem), val)
-
-#define sx_read_channel_byte(port, elem) \
- read_sx_byte (port->board, CHAN_OFFSET (port, elem))
-
-#define sx_write_channel_word(port, elem, val) \
- write_sx_word (port->board, CHAN_OFFSET (port, elem), val)
-
-#define sx_read_channel_word(port, elem) \
- read_sx_word (port->board, CHAN_OFFSET (port, elem))
-
-#define sx_write_module_byte(board, addr, elem, val) \
- write_sx_byte (board, MODU_OFFSET (board, addr, elem), val)
-
-#define sx_read_module_byte(board, addr, elem) \
- read_sx_byte (board, MODU_OFFSET (board, addr, elem))
-
-#define sx_write_module_word(board, addr, elem, val) \
- write_sx_word (board, MODU_OFFSET (board, addr, elem), val)
-
-#define sx_read_module_word(board, addr, elem) \
- read_sx_word (board, MODU_OFFSET (board, addr, elem))
-
-#define sx_write_board_byte(board, elem, val) \
- write_sx_byte (board, BRD_OFFSET (board, elem), val)
-
-#define sx_read_board_byte(board, elem) \
- read_sx_byte (board, BRD_OFFSET (board, elem))
-
-#define sx_write_board_word(board, elem, val) \
- write_sx_word (board, BRD_OFFSET (board, elem), val)
-
-#define sx_read_board_word(board, elem) \
- read_sx_word (board, BRD_OFFSET (board, elem))
-
-static int sx_start_board(struct sx_board *board)
-{
- if (IS_SX_BOARD(board)) {
- write_sx_byte(board, SX_CONFIG, SX_CONF_BUSEN);
- } else if (IS_EISA_BOARD(board)) {
- write_sx_byte(board, SI2_EISA_OFF, SI2_EISA_VAL);
- outb((board->irq << 4) | 4, board->eisa_base + 0xc02);
- } else if (IS_SI1_BOARD(board)) {
- write_sx_byte(board, SI1_ISA_RESET_CLEAR, 0);
- write_sx_byte(board, SI1_ISA_INTCL, 0);
- } else {
- /* Don't bug me about the clear_set.
- I haven't the foggiest idea what it's about -- REW */
- write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_CLEAR);
- write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET);
- }
- return 1;
-}
-
-#define SX_IRQ_REG_VAL(board) \
- ((board->flags & SX_ISA_BOARD) ? (board->irq << 4) : 0)
-
-/* Note. The SX register is write-only. Therefore, we have to enable the
- bus too. This is a no-op, if you don't mess with this driver... */
-static int sx_start_interrupts(struct sx_board *board)
-{
-
- /* Don't call this with board->irq == 0 */
-
- if (IS_SX_BOARD(board)) {
- write_sx_byte(board, SX_CONFIG, SX_IRQ_REG_VAL(board) |
- SX_CONF_BUSEN | SX_CONF_HOSTIRQ);
- } else if (IS_EISA_BOARD(board)) {
- inb(board->eisa_base + 0xc03);
- } else if (IS_SI1_BOARD(board)) {
- write_sx_byte(board, SI1_ISA_INTCL, 0);
- write_sx_byte(board, SI1_ISA_INTCL_CLEAR, 0);
- } else {
- switch (board->irq) {
- case 11:
- write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_SET);
- break;
- case 12:
- write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_SET);
- break;
- case 15:
- write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_SET);
- break;
- default:
- printk(KERN_INFO "sx: SI/XIO card doesn't support "
- "interrupt %d.\n", board->irq);
- return 0;
- }
- write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET);
- }
-
- return 1;
-}
-
-static int sx_send_command(struct sx_port *port,
- int command, int mask, int newstat)
-{
- func_enter2();
- write_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat), command);
- func_exit();
- return sx_busy_wait_eq(port->board, CHAN_OFFSET(port, hi_hstat), mask,
- newstat);
-}
-
-static char *mod_type_s(int module_type)
-{
- switch (module_type) {
- case TA4:
- return "TA4";
- case TA8:
- return "TA8";
- case TA4_ASIC:
- return "TA4_ASIC";
- case TA8_ASIC:
- return "TA8_ASIC";
- case MTA_CD1400:
- return "MTA_CD1400";
- case SXDC:
- return "SXDC";
- default:
- return "Unknown/invalid";
- }
-}
-
-static char *pan_type_s(int pan_type)
-{
- switch (pan_type) {
- case MOD_RS232DB25:
- return "MOD_RS232DB25";
- case MOD_RS232RJ45:
- return "MOD_RS232RJ45";
- case MOD_RS422DB25:
- return "MOD_RS422DB25";
- case MOD_PARALLEL:
- return "MOD_PARALLEL";
- case MOD_2_RS232DB25:
- return "MOD_2_RS232DB25";
- case MOD_2_RS232RJ45:
- return "MOD_2_RS232RJ45";
- case MOD_2_RS422DB25:
- return "MOD_2_RS422DB25";
- case MOD_RS232DB25MALE:
- return "MOD_RS232DB25MALE";
- case MOD_2_PARALLEL:
- return "MOD_2_PARALLEL";
- case MOD_BLANK:
- return "empty";
- default:
- return "invalid";
- }
-}
-
-static int mod_compat_type(int module_type)
-{
- return module_type >> 4;
-}
-
-static void sx_reconfigure_port(struct sx_port *port)
-{
- if (sx_read_channel_byte(port, hi_hstat) == HS_IDLE_OPEN) {
- if (sx_send_command(port, HS_CONFIG, -1, HS_IDLE_OPEN) != 1) {
- printk(KERN_WARNING "sx: Sent reconfigure command, but "
- "card didn't react.\n");
- }
- } else {
- sx_dprintk(SX_DEBUG_TERMIOS, "sx: Not sending reconfigure: "
- "port isn't open (%02x).\n",
- sx_read_channel_byte(port, hi_hstat));
- }
-}
-
-static void sx_setsignals(struct sx_port *port, int dtr, int rts)
-{
- int t;
- func_enter2();
-
- t = sx_read_channel_byte(port, hi_op);
- if (dtr >= 0)
- t = dtr ? (t | OP_DTR) : (t & ~OP_DTR);
- if (rts >= 0)
- t = rts ? (t | OP_RTS) : (t & ~OP_RTS);
- sx_write_channel_byte(port, hi_op, t);
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "setsignals: %d/%d\n", dtr, rts);
-
- func_exit();
-}
-
-static int sx_getsignals(struct sx_port *port)
-{
- int i_stat, o_stat;
-
- o_stat = sx_read_channel_byte(port, hi_op);
- i_stat = sx_read_channel_byte(port, hi_ip);
-
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "getsignals: %d/%d (%d/%d) "
- "%02x/%02x\n",
- (o_stat & OP_DTR) != 0, (o_stat & OP_RTS) != 0,
- port->c_dcd, tty_port_carrier_raised(&port->gs.port),
- sx_read_channel_byte(port, hi_ip),
- sx_read_channel_byte(port, hi_state));
-
- return (((o_stat & OP_DTR) ? TIOCM_DTR : 0) |
- ((o_stat & OP_RTS) ? TIOCM_RTS : 0) |
- ((i_stat & IP_CTS) ? TIOCM_CTS : 0) |
- ((i_stat & IP_DCD) ? TIOCM_CAR : 0) |
- ((i_stat & IP_DSR) ? TIOCM_DSR : 0) |
- ((i_stat & IP_RI) ? TIOCM_RNG : 0));
-}
-
-static void sx_set_baud(struct sx_port *port)
-{
- int t;
-
- if (port->board->ta_type == MOD_SXDC) {
- switch (port->gs.baud) {
- /* Save some typing work... */
-#define e(x) case x: t = BAUD_ ## x; break
- e(50);
- e(75);
- e(110);
- e(150);
- e(200);
- e(300);
- e(600);
- e(1200);
- e(1800);
- e(2000);
- e(2400);
- e(4800);
- e(7200);
- e(9600);
- e(14400);
- e(19200);
- e(28800);
- e(38400);
- e(56000);
- e(57600);
- e(64000);
- e(76800);
- e(115200);
- e(128000);
- e(150000);
- e(230400);
- e(256000);
- e(460800);
- e(921600);
- case 134:
- t = BAUD_134_5;
- break;
- case 0:
- t = -1;
- break;
- default:
- /* Can I return "invalid"? */
- t = BAUD_9600;
- printk(KERN_INFO "sx: unsupported baud rate: %d.\n",
- port->gs.baud);
- break;
- }
-#undef e
- if (t > 0) {
-/* The baud rate is not set to 0, so we're enabeling DTR... -- REW */
- sx_setsignals(port, 1, -1);
- /* XXX This is not TA & MTA compatible */
- sx_write_channel_byte(port, hi_csr, 0xff);
-
- sx_write_channel_byte(port, hi_txbaud, t);
- sx_write_channel_byte(port, hi_rxbaud, t);
- } else {
- sx_setsignals(port, 0, -1);
- }
- } else {
- switch (port->gs.baud) {
-#define e(x) case x: t = CSR_ ## x; break
- e(75);
- e(150);
- e(300);
- e(600);
- e(1200);
- e(2400);
- e(4800);
- e(1800);
- e(9600);
- e(19200);
- e(57600);
- e(38400);
-/* TA supports 110, but not 115200, MTA supports 115200, but not 110 */
- case 110:
- if (port->board->ta_type == MOD_TA) {
- t = CSR_110;
- break;
- } else {
- t = CSR_9600;
- printk(KERN_INFO "sx: Unsupported baud rate: "
- "%d.\n", port->gs.baud);
- break;
- }
- case 115200:
- if (port->board->ta_type == MOD_TA) {
- t = CSR_9600;
- printk(KERN_INFO "sx: Unsupported baud rate: "
- "%d.\n", port->gs.baud);
- break;
- } else {
- t = CSR_110;
- break;
- }
- case 0:
- t = -1;
- break;
- default:
- t = CSR_9600;
- printk(KERN_INFO "sx: Unsupported baud rate: %d.\n",
- port->gs.baud);
- break;
- }
-#undef e
- if (t >= 0) {
- sx_setsignals(port, 1, -1);
- sx_write_channel_byte(port, hi_csr, t * 0x11);
- } else {
- sx_setsignals(port, 0, -1);
- }
- }
-}
-
-/* Simon Allen's version of this routine was 225 lines long. 85 is a lot
- better. -- REW */
-
-static int sx_set_real_termios(void *ptr)
-{
- struct sx_port *port = ptr;
-
- func_enter2();
-
- if (!port->gs.port.tty)
- return 0;
-
- /* What is this doing here? -- REW
- Ha! figured it out. It is to allow you to get DTR active again
- if you've dropped it with stty 0. Moved to set_baud, where it
- belongs (next to the drop dtr if baud == 0) -- REW */
- /* sx_setsignals (port, 1, -1); */
-
- sx_set_baud(port);
-
-#define CFLAG port->gs.port.tty->termios->c_cflag
- sx_write_channel_byte(port, hi_mr1,
- (C_PARENB(port->gs.port.tty) ? MR1_WITH : MR1_NONE) |
- (C_PARODD(port->gs.port.tty) ? MR1_ODD : MR1_EVEN) |
- (C_CRTSCTS(port->gs.port.tty) ? MR1_RTS_RXFLOW : 0) |
- (((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) |
- (((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) |
- (((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) |
- (((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0));
-
- sx_write_channel_byte(port, hi_mr2,
- (C_CRTSCTS(port->gs.port.tty) ? MR2_CTS_TXFLOW : 0) |
- (C_CSTOPB(port->gs.port.tty) ? MR2_2_STOP :
- MR2_1_STOP));
-
- switch (CFLAG & CSIZE) {
- case CS8:
- sx_write_channel_byte(port, hi_mask, 0xff);
- break;
- case CS7:
- sx_write_channel_byte(port, hi_mask, 0x7f);
- break;
- case CS6:
- sx_write_channel_byte(port, hi_mask, 0x3f);
- break;
- case CS5:
- sx_write_channel_byte(port, hi_mask, 0x1f);
- break;
- default:
- printk(KERN_INFO "sx: Invalid wordsize: %u\n",
- (unsigned int)CFLAG & CSIZE);
- break;
- }
-
- sx_write_channel_byte(port, hi_prtcl,
- (I_IXON(port->gs.port.tty) ? SP_TXEN : 0) |
- (I_IXOFF(port->gs.port.tty) ? SP_RXEN : 0) |
- (I_IXANY(port->gs.port.tty) ? SP_TANY : 0) | SP_DCEN);
-
- sx_write_channel_byte(port, hi_break,
- (I_IGNBRK(port->gs.port.tty) ? BR_IGN : 0 |
- I_BRKINT(port->gs.port.tty) ? BR_INT : 0));
-
- sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.port.tty));
- sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.port.tty));
- sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.port.tty));
- sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.port.tty));
-
- sx_reconfigure_port(port);
-
- /* Tell line discipline whether we will do input cooking */
- if (I_OTHER(port->gs.port.tty)) {
- clear_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
- } else {
- set_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
- }
- sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ",
- (unsigned int)port->gs.port.tty->termios->c_iflag,
- I_OTHER(port->gs.port.tty));
-
-/* Tell line discipline whether we will do output cooking.
- * If OPOST is set and no other output flags are set then we can do output
- * processing. Even if only *one* other flag in the O_OTHER group is set
- * we do cooking in software.
- */
- if (O_OPOST(port->gs.port.tty) && !O_OTHER(port->gs.port.tty)) {
- set_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
- } else {
- clear_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
- }
- sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n",
- (unsigned int)port->gs.port.tty->termios->c_oflag,
- O_OTHER(port->gs.port.tty));
- /* port->c_dcd = sx_get_CD (port); */
- func_exit();
- return 0;
-}
-
-/* ********************************************************************** *
- * the interrupt related routines *
- * ********************************************************************** */
-
-/* Note:
- Other drivers use the macro "MIN" to calculate how much to copy.
- This has the disadvantage that it will evaluate parts twice. That's
- expensive when it's IO (and the compiler cannot optimize those away!).
- Moreover, I'm not sure that you're race-free.
-
- I assign a value, and then only allow the value to decrease. This
- is always safe. This makes the code a few lines longer, and you
- know I'm dead against that, but I think it is required in this
- case. */
-
-static void sx_transmit_chars(struct sx_port *port)
-{
- int c;
- int tx_ip;
- int txroom;
-
- func_enter2();
- sx_dprintk(SX_DEBUG_TRANSMIT, "Port %p: transmit %d chars\n",
- port, port->gs.xmit_cnt);
-
- if (test_and_set_bit(SX_PORT_TRANSMIT_LOCK, &port->locks)) {
- return;
- }
-
- while (1) {
- c = port->gs.xmit_cnt;
-
- sx_dprintk(SX_DEBUG_TRANSMIT, "Copying %d ", c);
- tx_ip = sx_read_channel_byte(port, hi_txipos);
-
- /* Took me 5 minutes to deduce this formula.
- Luckily it is literally in the manual in section 6.5.4.3.5 */
- txroom = (sx_read_channel_byte(port, hi_txopos) - tx_ip - 1) &
- 0xff;
-
- /* Don't copy more bytes than there is room for in the buffer */
- if (c > txroom)
- c = txroom;
- sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, txroom);
-
- /* Don't copy past the end of the hardware transmit buffer */
- if (c > 0x100 - tx_ip)
- c = 0x100 - tx_ip;
-
- sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, 0x100 - tx_ip);
-
- /* Don't copy pas the end of the source buffer */
- if (c > SERIAL_XMIT_SIZE - port->gs.xmit_tail)
- c = SERIAL_XMIT_SIZE - port->gs.xmit_tail;
-
- sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%ld) \n",
- c, SERIAL_XMIT_SIZE - port->gs.xmit_tail);
-
- /* If for one reason or another, we can't copy more data, we're
- done! */
- if (c == 0)
- break;
-
- memcpy_toio(port->board->base + CHAN_OFFSET(port, hi_txbuf) +
- tx_ip, port->gs.xmit_buf + port->gs.xmit_tail, c);
-
- /* Update the pointer in the card */
- sx_write_channel_byte(port, hi_txipos, (tx_ip + c) & 0xff);
-
- /* Update the kernel buffer end */
- port->gs.xmit_tail = (port->gs.xmit_tail + c) &
- (SERIAL_XMIT_SIZE - 1);
-
- /* This one last. (this is essential)
- It would allow others to start putting more data into the
- buffer! */
- port->gs.xmit_cnt -= c;
- }
-
- if (port->gs.xmit_cnt == 0) {
- sx_disable_tx_interrupts(port);
- }
-
- if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) {
- tty_wakeup(port->gs.port.tty);
- sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n",
- port->gs.wakeup_chars);
- }
-
- clear_bit(SX_PORT_TRANSMIT_LOCK, &port->locks);
- func_exit();
-}
-
-/* Note the symmetry between receiving chars and transmitting them!
- Note: The kernel should have implemented both a receive buffer and
- a transmit buffer. */
-
-/* Inlined: Called only once. Remove the inline when you add another call */
-static inline void sx_receive_chars(struct sx_port *port)
-{
- int c;
- int rx_op;
- struct tty_struct *tty;
- int copied = 0;
- unsigned char *rp;
-
- func_enter2();
- tty = port->gs.port.tty;
- while (1) {
- rx_op = sx_read_channel_byte(port, hi_rxopos);
- c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff;
-
- sx_dprintk(SX_DEBUG_RECEIVE, "rxop=%d, c = %d.\n", rx_op, c);
-
- /* Don't copy past the end of the hardware receive buffer */
- if (rx_op + c > 0x100)
- c = 0x100 - rx_op;
-
- sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c);
-
- /* Don't copy more bytes than there is room for in the buffer */
-
- c = tty_prepare_flip_string(tty, &rp, c);
-
- sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c);
-
- /* If for one reason or another, we can't copy more data, we're done! */
- if (c == 0)
- break;
-
- sx_dprintk(SX_DEBUG_RECEIVE, "Copying over %d chars. First is "
- "%d at %lx\n", c, read_sx_byte(port->board,
- CHAN_OFFSET(port, hi_rxbuf) + rx_op),
- CHAN_OFFSET(port, hi_rxbuf));
- memcpy_fromio(rp, port->board->base +
- CHAN_OFFSET(port, hi_rxbuf) + rx_op, c);
-
- /* This one last. ( Not essential.)
- It allows the card to start putting more data into the
- buffer!
- Update the pointer in the card */
- sx_write_channel_byte(port, hi_rxopos, (rx_op + c) & 0xff);
-
- copied += c;
- }
- if (copied) {
- struct timeval tv;
-
- do_gettimeofday(&tv);
- sx_dprintk(SX_DEBUG_RECEIVE, "pushing flipq port %d (%3d "
- "chars): %d.%06d (%d/%d)\n", port->line,
- copied, (int)(tv.tv_sec % 60), (int)tv.tv_usec,
- tty->raw, tty->real_raw);
-
- /* Tell the rest of the system the news. Great news. New
- characters! */
- tty_flip_buffer_push(tty);
- /* tty_schedule_flip (tty); */
- }
-
- func_exit();
-}
-
-/* Inlined: it is called only once. Remove the inline if you add another
- call */
-static inline void sx_check_modem_signals(struct sx_port *port)
-{
- int hi_state;
- int c_dcd;
-
- hi_state = sx_read_channel_byte(port, hi_state);
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Checking modem signals (%d/%d)\n",
- port->c_dcd, tty_port_carrier_raised(&port->gs.port));
-
- if (hi_state & ST_BREAK) {
- hi_state &= ~ST_BREAK;
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a break.\n");
- sx_write_channel_byte(port, hi_state, hi_state);
- gs_got_break(&port->gs);
- }
- if (hi_state & ST_DCD) {
- hi_state &= ~ST_DCD;
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a DCD change.\n");
- sx_write_channel_byte(port, hi_state, hi_state);
- c_dcd = tty_port_carrier_raised(&port->gs.port);
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD is now %d\n", c_dcd);
- if (c_dcd != port->c_dcd) {
- port->c_dcd = c_dcd;
- if (tty_port_carrier_raised(&port->gs.port)) {
- /* DCD went UP */
- if ((sx_read_channel_byte(port, hi_hstat) !=
- HS_IDLE_CLOSED) &&
- !(port->gs.port.tty->termios->
- c_cflag & CLOCAL)) {
- /* Are we blocking in open? */
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "active, unblocking open\n");
- wake_up_interruptible(&port->gs.port.
- open_wait);
- } else {
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "raised. Ignoring.\n");
- }
- } else {
- /* DCD went down! */
- if (!(port->gs.port.tty->termios->c_cflag & CLOCAL)){
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "dropped. hanging up....\n");
- tty_hangup(port->gs.port.tty);
- } else {
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
- "dropped. ignoring.\n");
- }
- }
- } else {
- sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Hmmm. card told us "
- "DCD changed, but it didn't.\n");
- }
- }
-}
-
-/* This is what an interrupt routine should look like.
- * Small, elegant, clear.
- */
-
-static irqreturn_t sx_interrupt(int irq, void *ptr)
-{
- struct sx_board *board = ptr;
- struct sx_port *port;
- int i;
-
- func_enter();
- sx_dprintk(SX_DEBUG_FLOW, "sx: enter sx_interrupt (%d/%d)\n", irq,
- board->irq);
-
- /* AAargh! The order in which to do these things is essential and
- not trivial.
-
- - Rate limit goes before "recursive". Otherwise a series of
- recursive calls will hang the machine in the interrupt routine.
-
- - hardware twiddling goes before "recursive". Otherwise when we
- poll the card, and a recursive interrupt happens, we won't
- ack the card, so it might keep on interrupting us. (especially
- level sensitive interrupt systems like PCI).
-
- - Rate limit goes before hardware twiddling. Otherwise we won't
- catch a card that has gone bonkers.
-
- - The "initialized" test goes after the hardware twiddling. Otherwise
- the card will stick us in the interrupt routine again.
-
- - The initialized test goes before recursive.
- */
-
-#ifdef IRQ_RATE_LIMIT
- /* Aaargh! I'm ashamed. This costs more lines-of-code than the
- actual interrupt routine!. (Well, used to when I wrote that
- comment) */
- {
- static int lastjif;
- static int nintr = 0;
-
- if (lastjif == jiffies) {
- if (++nintr > IRQ_RATE_LIMIT) {
- free_irq(board->irq, board);
- printk(KERN_ERR "sx: Too many interrupts. "
- "Turning off interrupt %d.\n",
- board->irq);
- }
- } else {
- lastjif = jiffies;
- nintr = 0;
- }
- }
-#endif
-
- if (board->irq == irq) {
- /* Tell the card we've noticed the interrupt. */
-
- sx_write_board_word(board, cc_int_pending, 0);
- if (IS_SX_BOARD(board)) {
- write_sx_byte(board, SX_RESET_IRQ, 1);
- } else if (IS_EISA_BOARD(board)) {
- inb(board->eisa_base + 0xc03);
- write_sx_word(board, 8, 0);
- } else {
- write_sx_byte(board, SI2_ISA_INTCLEAR,
- SI2_ISA_INTCLEAR_CLEAR);
- write_sx_byte(board, SI2_ISA_INTCLEAR,
- SI2_ISA_INTCLEAR_SET);
- }
- }
-
- if (!sx_initialized)
- return IRQ_HANDLED;
- if (!(board->flags & SX_BOARD_INITIALIZED))
- return IRQ_HANDLED;
-
- if (test_and_set_bit(SX_BOARD_INTR_LOCK, &board->locks)) {
- printk(KERN_ERR "Recursive interrupt! (%d)\n", board->irq);
- return IRQ_HANDLED;
- }
-
- for (i = 0; i < board->nports; i++) {
- port = &board->ports[i];
- if (port->gs.port.flags & GS_ACTIVE) {
- if (sx_read_channel_byte(port, hi_state)) {
- sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: "
- "modem signal change?... \n",i);
- sx_check_modem_signals(port);
- }
- if (port->gs.xmit_cnt) {
- sx_transmit_chars(port);
- }
- if (!(port->gs.port.flags & SX_RX_THROTTLE)) {
- sx_receive_chars(port);
- }
- }
- }
-
- clear_bit(SX_BOARD_INTR_LOCK, &board->locks);
-
- sx_dprintk(SX_DEBUG_FLOW, "sx: exit sx_interrupt (%d/%d)\n", irq,
- board->irq);
- func_exit();
- return IRQ_HANDLED;
-}
-
-static void sx_pollfunc(unsigned long data)
-{
- struct sx_board *board = (struct sx_board *)data;
-
- func_enter();
-
- sx_interrupt(0, board);
-
- mod_timer(&board->timer, jiffies + sx_poll);
- func_exit();
-}
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the generic_serial driver *
- * ********************************************************************** */
-
-/* Ehhm. I don't know how to fiddle with interrupts on the SX card. --REW */
-/* Hmm. Ok I figured it out. You don't. */
-
-static void sx_disable_tx_interrupts(void *ptr)
-{
- struct sx_port *port = ptr;
- func_enter2();
-
- port->gs.port.flags &= ~GS_TX_INTEN;
-
- func_exit();
-}
-
-static void sx_enable_tx_interrupts(void *ptr)
-{
- struct sx_port *port = ptr;
- int data_in_buffer;
- func_enter2();
-
- /* First transmit the characters that we're supposed to */
- sx_transmit_chars(port);
-
- /* The sx card will never interrupt us if we don't fill the buffer
- past 25%. So we keep considering interrupts off if that's the case. */
- data_in_buffer = (sx_read_channel_byte(port, hi_txipos) -
- sx_read_channel_byte(port, hi_txopos)) & 0xff;
-
- /* XXX Must be "HIGH_WATER" for SI card according to doc. */
- if (data_in_buffer < LOW_WATER)
- port->gs.port.flags &= ~GS_TX_INTEN;
-
- func_exit();
-}
-
-static void sx_disable_rx_interrupts(void *ptr)
-{
- /* struct sx_port *port = ptr; */
- func_enter();
-
- func_exit();
-}
-
-static void sx_enable_rx_interrupts(void *ptr)
-{
- /* struct sx_port *port = ptr; */
- func_enter();
-
- func_exit();
-}
-
-/* Jeez. Isn't this simple? */
-static int sx_carrier_raised(struct tty_port *port)
-{
- struct sx_port *sp = container_of(port, struct sx_port, gs.port);
- return ((sx_read_channel_byte(sp, hi_ip) & IP_DCD) != 0);
-}
-
-/* Jeez. Isn't this simple? */
-static int sx_chars_in_buffer(void *ptr)
-{
- struct sx_port *port = ptr;
- func_enter2();
-
- func_exit();
- return ((sx_read_channel_byte(port, hi_txipos) -
- sx_read_channel_byte(port, hi_txopos)) & 0xff);
-}
-
-static void sx_shutdown_port(void *ptr)
-{
- struct sx_port *port = ptr;
-
- func_enter();
-
- port->gs.port.flags &= ~GS_ACTIVE;
- if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) {
- sx_setsignals(port, 0, 0);
- sx_reconfigure_port(port);
- }
-
- func_exit();
-}
-
-/* ********************************************************************** *
- * Here are the routines that actually *
- * interface with the rest of the system *
- * ********************************************************************** */
-
-static int sx_open(struct tty_struct *tty, struct file *filp)
-{
- struct sx_port *port;
- int retval, line;
- unsigned long flags;
-
- func_enter();
-
- if (!sx_initialized) {
- return -EIO;
- }
-
- line = tty->index;
- sx_dprintk(SX_DEBUG_OPEN, "%d: opening line %d. tty=%p ctty=%p, "
- "np=%d)\n", task_pid_nr(current), line, tty,
- current->signal->tty, sx_nports);
-
- if ((line < 0) || (line >= SX_NPORTS) || (line >= sx_nports))
- return -ENODEV;
-
- port = &sx_ports[line];
- port->c_dcd = 0; /* Make sure that the first interrupt doesn't detect a
- 1 -> 0 transition. */
-
- sx_dprintk(SX_DEBUG_OPEN, "port = %p c_dcd = %d\n", port, port->c_dcd);
-
- spin_lock_irqsave(&port->gs.driver_lock, flags);
-
- tty->driver_data = port;
- port->gs.port.tty = tty;
- port->gs.port.count++;
- spin_unlock_irqrestore(&port->gs.driver_lock, flags);
-
- sx_dprintk(SX_DEBUG_OPEN, "starting port\n");
-
- /*
- * Start up serial port
- */
- retval = gs_init_port(&port->gs);
- sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n");
- if (retval) {
- port->gs.port.count--;
- return retval;
- }
-
- port->gs.port.flags |= GS_ACTIVE;
- if (port->gs.port.count <= 1)
- sx_setsignals(port, 1, 1);
-
-#if 0
- if (sx_debug & SX_DEBUG_OPEN)
- my_hd(port, sizeof(*port));
-#else
- if (sx_debug & SX_DEBUG_OPEN)
- my_hd_io(port->board->base + port->ch_base, sizeof(*port));
-#endif
-
- if (port->gs.port.count <= 1) {
- if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) {
- printk(KERN_ERR "sx: Card didn't respond to LOPEN "
- "command.\n");
- spin_lock_irqsave(&port->gs.driver_lock, flags);
- port->gs.port.count--;
- spin_unlock_irqrestore(&port->gs.driver_lock, flags);
- return -EIO;
- }
- }
-
- retval = gs_block_til_ready(port, filp);
- sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n",
- retval, port->gs.port.count);
-
- if (retval) {
-/*
- * Don't lower gs.port.count here because sx_close() will be called later
- */
-
- return retval;
- }
- /* tty->low_latency = 1; */
-
- port->c_dcd = sx_carrier_raised(&port->gs.port);
- sx_dprintk(SX_DEBUG_OPEN, "at open: cd=%d\n", port->c_dcd);
-
- func_exit();
- return 0;
-
-}
-
-static void sx_close(void *ptr)
-{
- struct sx_port *port = ptr;
- /* Give the port 5 seconds to close down. */
- int to = 5 * HZ;
-
- func_enter();
-
- sx_setsignals(port, 0, 0);
- sx_reconfigure_port(port);
- sx_send_command(port, HS_CLOSE, 0, 0);
-
- while (to-- && (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED))
- if (msleep_interruptible(10))
- break;
- if (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED) {
- if (sx_send_command(port, HS_FORCE_CLOSED, -1, HS_IDLE_CLOSED)
- != 1) {
- printk(KERN_ERR "sx: sent the force_close command, but "
- "card didn't react\n");
- } else
- sx_dprintk(SX_DEBUG_CLOSE, "sent the force_close "
- "command.\n");
- }
-
- sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n",
- 5 * HZ - to - 1, port->gs.port.count);
-
- if (port->gs.port.count) {
- sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n",
- port->gs.port.count);
- /*printk("%s SETTING port count to zero: %p count: %d\n",
- __func__, port, port->gs.port.count);
- port->gs.port.count = 0;*/
- }
-
- func_exit();
-}
-
-/* This is relatively thorough. But then again it is only 20 lines. */
-#define MARCHUP for (i = min; i < max; i++)
-#define MARCHDOWN for (i = max - 1; i >= min; i--)
-#define W0 write_sx_byte(board, i, 0x55)
-#define W1 write_sx_byte(board, i, 0xaa)
-#define R0 if (read_sx_byte(board, i) != 0x55) return 1
-#define R1 if (read_sx_byte(board, i) != 0xaa) return 1
-
-/* This memtest takes a human-noticable time. You normally only do it
- once a boot, so I guess that it is worth it. */
-static int do_memtest(struct sx_board *board, int min, int max)
-{
- int i;
-
- /* This is a marchb. Theoretically, marchb catches much more than
- simpler tests. In practise, the longer test just catches more
- intermittent errors. -- REW
- (For the theory behind memory testing see:
- Testing Semiconductor Memories by A.J. van de Goor.) */
- MARCHUP {
- W0;
- }
- MARCHUP {
- R0;
- W1;
- R1;
- W0;
- R0;
- W1;
- }
- MARCHUP {
- R1;
- W0;
- W1;
- }
- MARCHDOWN {
- R1;
- W0;
- W1;
- W0;
- }
- MARCHDOWN {
- R0;
- W1;
- W0;
- }
-
- return 0;
-}
-
-#undef MARCHUP
-#undef MARCHDOWN
-#undef W0
-#undef W1
-#undef R0
-#undef R1
-
-#define MARCHUP for (i = min; i < max; i += 2)
-#define MARCHDOWN for (i = max - 1; i >= min; i -= 2)
-#define W0 write_sx_word(board, i, 0x55aa)
-#define W1 write_sx_word(board, i, 0xaa55)
-#define R0 if (read_sx_word(board, i) != 0x55aa) return 1
-#define R1 if (read_sx_word(board, i) != 0xaa55) return 1
-
-#if 0
-/* This memtest takes a human-noticable time. You normally only do it
- once a boot, so I guess that it is worth it. */
-static int do_memtest_w(struct sx_board *board, int min, int max)
-{
- int i;
-
- MARCHUP {
- W0;
- }
- MARCHUP {
- R0;
- W1;
- R1;
- W0;
- R0;
- W1;
- }
- MARCHUP {
- R1;
- W0;
- W1;
- }
- MARCHDOWN {
- R1;
- W0;
- W1;
- W0;
- }
- MARCHDOWN {
- R0;
- W1;
- W0;
- }
-
- return 0;
-}
-#endif
-
-static long sx_fw_ioctl(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- long rc = 0;
- int __user *descr = (int __user *)arg;
- int i;
- static struct sx_board *board = NULL;
- int nbytes, offset;
- unsigned long data;
- char *tmp;
-
- func_enter();
-
- if (!capable(CAP_SYS_RAWIO))
- return -EPERM;
-
- tty_lock();
-
- sx_dprintk(SX_DEBUG_FIRMWARE, "IOCTL %x: %lx\n", cmd, arg);
-
- if (!board)
- board = &boards[0];
- if (board->flags & SX_BOARD_PRESENT) {
- sx_dprintk(SX_DEBUG_FIRMWARE, "Board present! (%x)\n",
- board->flags);
- } else {
- sx_dprintk(SX_DEBUG_FIRMWARE, "Board not present! (%x) all:",
- board->flags);
- for (i = 0; i < SX_NBOARDS; i++)
- sx_dprintk(SX_DEBUG_FIRMWARE, "<%x> ", boards[i].flags);
- sx_dprintk(SX_DEBUG_FIRMWARE, "\n");
- rc = -EIO;
- goto out;
- }
-
- switch (cmd) {
- case SXIO_SET_BOARD:
- sx_dprintk(SX_DEBUG_FIRMWARE, "set board to %ld\n", arg);
- rc = -EIO;
- if (arg >= SX_NBOARDS)
- break;
- sx_dprintk(SX_DEBUG_FIRMWARE, "not out of range\n");
- if (!(boards[arg].flags & SX_BOARD_PRESENT))
- break;
- sx_dprintk(SX_DEBUG_FIRMWARE, ".. and present!\n");
- board = &boards[arg];
- rc = 0;
- /* FIXME: And this does ... nothing?? */
- break;
- case SXIO_GET_TYPE:
- rc = -ENOENT; /* If we manage to miss one, return error. */
- if (IS_SX_BOARD(board))
- rc = SX_TYPE_SX;
- if (IS_CF_BOARD(board))
- rc = SX_TYPE_CF;
- if (IS_SI_BOARD(board))
- rc = SX_TYPE_SI;
- if (IS_SI1_BOARD(board))
- rc = SX_TYPE_SI;
- if (IS_EISA_BOARD(board))
- rc = SX_TYPE_SI;
- sx_dprintk(SX_DEBUG_FIRMWARE, "returning type= %ld\n", rc);
- break;
- case SXIO_DO_RAMTEST:
- if (sx_initialized) { /* Already initialized: better not ramtest the board. */
- rc = -EPERM;
- break;
- }
- if (IS_SX_BOARD(board)) {
- rc = do_memtest(board, 0, 0x7000);
- if (!rc)
- rc = do_memtest(board, 0, 0x7000);
- /*if (!rc) rc = do_memtest_w (board, 0, 0x7000); */
- } else {
- rc = do_memtest(board, 0, 0x7ff8);
- /* if (!rc) rc = do_memtest_w (board, 0, 0x7ff8); */
- }
- sx_dprintk(SX_DEBUG_FIRMWARE,
- "returning memtest result= %ld\n", rc);
- break;
- case SXIO_DOWNLOAD:
- if (sx_initialized) {/* Already initialized */
- rc = -EEXIST;
- break;
- }
- if (!sx_reset(board)) {
- rc = -EIO;
- break;
- }
- sx_dprintk(SX_DEBUG_INIT, "reset the board...\n");
-
- tmp = kmalloc(SX_CHUNK_SIZE, GFP_USER);
- if (!tmp) {
- rc = -ENOMEM;
- break;
- }
- /* FIXME: check returns */
- get_user(nbytes, descr++);
- get_user(offset, descr++);
- get_user(data, descr++);
- while (nbytes && data) {
- for (i = 0; i < nbytes; i += SX_CHUNK_SIZE) {
- if (copy_from_user(tmp, (char __user *)data + i,
- (i + SX_CHUNK_SIZE > nbytes) ?
- nbytes - i : SX_CHUNK_SIZE)) {
- kfree(tmp);
- rc = -EFAULT;
- goto out;
- }
- memcpy_toio(board->base2 + offset + i, tmp,
- (i + SX_CHUNK_SIZE > nbytes) ?
- nbytes - i : SX_CHUNK_SIZE);
- }
-
- get_user(nbytes, descr++);
- get_user(offset, descr++);
- get_user(data, descr++);
- }
- kfree(tmp);
- sx_nports += sx_init_board(board);
- rc = sx_nports;
- break;
- case SXIO_INIT:
- if (sx_initialized) { /* Already initialized */
- rc = -EEXIST;
- break;
- }
- /* This is not allowed until all boards are initialized... */
- for (i = 0; i < SX_NBOARDS; i++) {
- if ((boards[i].flags & SX_BOARD_PRESENT) &&
- !(boards[i].flags & SX_BOARD_INITIALIZED)) {
- rc = -EIO;
- break;
- }
- }
- for (i = 0; i < SX_NBOARDS; i++)
- if (!(boards[i].flags & SX_BOARD_PRESENT))
- break;
-
- sx_dprintk(SX_DEBUG_FIRMWARE, "initing portstructs, %d boards, "
- "%d channels, first board: %d ports\n",
- i, sx_nports, boards[0].nports);
- rc = sx_init_portstructs(i, sx_nports);
- sx_init_drivers();
- if (rc >= 0)
- sx_initialized++;
- break;
- case SXIO_SETDEBUG:
- sx_debug = arg;
- break;
- case SXIO_GETDEBUG:
- rc = sx_debug;
- break;
- case SXIO_GETGSDEBUG:
- case SXIO_SETGSDEBUG:
- rc = -EINVAL;
- break;
- case SXIO_GETNPORTS:
- rc = sx_nports;
- break;
- default:
- rc = -ENOTTY;
- break;
- }
-out:
- tty_unlock();
- func_exit();
- return rc;
-}
-
-static int sx_break(struct tty_struct *tty, int flag)
-{
- struct sx_port *port = tty->driver_data;
- int rv;
-
- func_enter();
- tty_lock();
-
- if (flag)
- rv = sx_send_command(port, HS_START, -1, HS_IDLE_BREAK);
- else
- rv = sx_send_command(port, HS_STOP, -1, HS_IDLE_OPEN);
- if (rv != 1)
- printk(KERN_ERR "sx: couldn't send break (%x).\n",
- read_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat)));
- tty_unlock();
- func_exit();
- return 0;
-}
-
-static int sx_tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct sx_port *port = tty->driver_data;
- return sx_getsignals(port);
-}
-
-static int sx_tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct sx_port *port = tty->driver_data;
- int rts = -1, dtr = -1;
-
- if (set & TIOCM_RTS)
- rts = 1;
- if (set & TIOCM_DTR)
- dtr = 1;
- if (clear & TIOCM_RTS)
- rts = 0;
- if (clear & TIOCM_DTR)
- dtr = 0;
-
- sx_setsignals(port, dtr, rts);
- sx_reconfigure_port(port);
- return 0;
-}
-
-static int sx_ioctl(struct tty_struct *tty, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- int rc;
- struct sx_port *port = tty->driver_data;
- void __user *argp = (void __user *)arg;
-
- /* func_enter2(); */
-
- rc = 0;
- tty_lock();
- switch (cmd) {
- case TIOCGSERIAL:
- rc = gs_getserial(&port->gs, argp);
- break;
- case TIOCSSERIAL:
- rc = gs_setserial(&port->gs, argp);
- break;
- default:
- rc = -ENOIOCTLCMD;
- break;
- }
- tty_unlock();
-
- /* func_exit(); */
- return rc;
-}
-
-/* The throttle/unthrottle scheme for the Specialix card is different
- * from other drivers and deserves some explanation.
- * The Specialix hardware takes care of XON/XOFF
- * and CTS/RTS flow control itself. This means that all we have to
- * do when signalled by the upper tty layer to throttle/unthrottle is
- * to make a note of it here. When we come to read characters from the
- * rx buffers on the card (sx_receive_chars()) we look to see if the
- * upper layer can accept more (as noted here in sx_rx_throt[]).
- * If it can't we simply don't remove chars from the cards buffer.
- * When the tty layer can accept chars, we again note that here and when
- * sx_receive_chars() is called it will remove them from the cards buffer.
- * The card will notice that a ports buffer has drained below some low
- * water mark and will unflow control the line itself, using whatever
- * flow control scheme is in use for that port. -- Simon Allen
- */
-
-static void sx_throttle(struct tty_struct *tty)
-{
- struct sx_port *port = tty->driver_data;
-
- func_enter2();
- /* If the port is using any type of input flow
- * control then throttle the port.
- */
- if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
- port->gs.port.flags |= SX_RX_THROTTLE;
- }
- func_exit();
-}
-
-static void sx_unthrottle(struct tty_struct *tty)
-{
- struct sx_port *port = tty->driver_data;
-
- func_enter2();
- /* Always unthrottle even if flow control is not enabled on
- * this port in case we disabled flow control while the port
- * was throttled
- */
- port->gs.port.flags &= ~SX_RX_THROTTLE;
- func_exit();
- return;
-}
-
-/* ********************************************************************** *
- * Here are the initialization routines. *
- * ********************************************************************** */
-
-static int sx_init_board(struct sx_board *board)
-{
- int addr;
- int chans;
- int type;
-
- func_enter();
-
- /* This is preceded by downloading the download code. */
-
- board->flags |= SX_BOARD_INITIALIZED;
-
- if (read_sx_byte(board, 0))
- /* CF boards may need this. */
- write_sx_byte(board, 0, 0);
-
- /* This resets the processor again, to make sure it didn't do any
- foolish things while we were downloading the image */
- if (!sx_reset(board))
- return 0;
-
- sx_start_board(board);
- udelay(10);
- if (!sx_busy_wait_neq(board, 0, 0xff, 0)) {
- printk(KERN_ERR "sx: Ooops. Board won't initialize.\n");
- return 0;
- }
-
- /* Ok. So now the processor on the card is running. It gathered
- some info for us... */
- sx_dprintk(SX_DEBUG_INIT, "The sxcard structure:\n");
- if (sx_debug & SX_DEBUG_INIT)
- my_hd_io(board->base, 0x10);
- sx_dprintk(SX_DEBUG_INIT, "the first sx_module structure:\n");
- if (sx_debug & SX_DEBUG_INIT)
- my_hd_io(board->base + 0x80, 0x30);
-
- sx_dprintk(SX_DEBUG_INIT, "init_status: %x, %dk memory, firmware "
- "V%x.%02x,\n",
- read_sx_byte(board, 0), read_sx_byte(board, 1),
- read_sx_byte(board, 5), read_sx_byte(board, 4));
-
- if (read_sx_byte(board, 0) == 0xff) {
- printk(KERN_INFO "sx: No modules found. Sorry.\n");
- board->nports = 0;
- return 0;
- }
-
- chans = 0;
-
- if (IS_SX_BOARD(board)) {
- sx_write_board_word(board, cc_int_count, sx_maxints);
- } else {
- if (sx_maxints)
- sx_write_board_word(board, cc_int_count,
- SI_PROCESSOR_CLOCK / 8 / sx_maxints);
- }
-
- /* grab the first module type... */
- /* board->ta_type = mod_compat_type (read_sx_byte (board, 0x80 + 0x08)); */
- board->ta_type = mod_compat_type(sx_read_module_byte(board, 0x80,
- mc_chip));
-
- /* XXX byteorder */
- for (addr = 0x80; addr != 0; addr = read_sx_word(board, addr) & 0x7fff){
- type = sx_read_module_byte(board, addr, mc_chip);
- sx_dprintk(SX_DEBUG_INIT, "Module at %x: %d channels\n",
- addr, read_sx_byte(board, addr + 2));
-
- chans += sx_read_module_byte(board, addr, mc_type);
-
- sx_dprintk(SX_DEBUG_INIT, "module is an %s, which has %s/%s "
- "panels\n",
- mod_type_s(type),
- pan_type_s(sx_read_module_byte(board, addr,
- mc_mods) & 0xf),
- pan_type_s(sx_read_module_byte(board, addr,
- mc_mods) >> 4));
-
- sx_dprintk(SX_DEBUG_INIT, "CD1400 versions: %x/%x, ASIC "
- "version: %x\n",
- sx_read_module_byte(board, addr, mc_rev1),
- sx_read_module_byte(board, addr, mc_rev2),
- sx_read_module_byte(board, addr, mc_mtaasic_rev));
-
- /* The following combinations are illegal: It should theoretically
- work, but timing problems make the bus HANG. */
-
- if (mod_compat_type(type) != board->ta_type) {
- printk(KERN_ERR "sx: This is an invalid "
- "configuration.\nDon't mix TA/MTA/SXDC on the "
- "same hostadapter.\n");
- chans = 0;
- break;
- }
- if ((IS_EISA_BOARD(board) ||
- IS_SI_BOARD(board)) &&
- (mod_compat_type(type) == 4)) {
- printk(KERN_ERR "sx: This is an invalid "
- "configuration.\nDon't use SXDCs on an SI/XIO "
- "adapter.\n");
- chans = 0;
- break;
- }
-#if 0 /* Problem fixed: firmware 3.05 */
- if (IS_SX_BOARD(board) && (type == TA8)) {
- /* There are some issues with the firmware and the DCD/RTS
- lines. It might work if you tie them together or something.
- It might also work if you get a newer sx_firmware. Therefore
- this is just a warning. */
- printk(KERN_WARNING
- "sx: The SX host doesn't work too well "
- "with the TA8 adapters.\nSpecialix is working on it.\n");
- }
-#endif
- }
-
- if (chans) {
- if (board->irq > 0) {
- /* fixed irq, probably PCI */
- if (sx_irqmask & (1 << board->irq)) { /* may we use this irq? */
- if (request_irq(board->irq, sx_interrupt,
- IRQF_SHARED | IRQF_DISABLED,
- "sx", board)) {
- printk(KERN_ERR "sx: Cannot allocate "
- "irq %d.\n", board->irq);
- board->irq = 0;
- }
- } else
- board->irq = 0;
- } else if (board->irq < 0 && sx_irqmask) {
- /* auto-allocate irq */
- int irqnr;
- int irqmask = sx_irqmask & (IS_SX_BOARD(board) ?
- SX_ISA_IRQ_MASK : SI2_ISA_IRQ_MASK);
- for (irqnr = 15; irqnr > 0; irqnr--)
- if (irqmask & (1 << irqnr))
- if (!request_irq(irqnr, sx_interrupt,
- IRQF_SHARED | IRQF_DISABLED,
- "sx", board))
- break;
- if (!irqnr)
- printk(KERN_ERR "sx: Cannot allocate IRQ.\n");
- board->irq = irqnr;
- } else
- board->irq = 0;
-
- if (board->irq) {
- /* Found a valid interrupt, start up interrupts! */
- sx_dprintk(SX_DEBUG_INIT, "Using irq %d.\n",
- board->irq);
- sx_start_interrupts(board);
- board->poll = sx_slowpoll;
- board->flags |= SX_IRQ_ALLOCATED;
- } else {
- /* no irq: setup board for polled operation */
- board->poll = sx_poll;
- sx_dprintk(SX_DEBUG_INIT, "Using poll-interval %d.\n",
- board->poll);
- }
-
- /* The timer should be initialized anyway: That way we can
- safely del_timer it when the module is unloaded. */
- setup_timer(&board->timer, sx_pollfunc, (unsigned long)board);
-
- if (board->poll)
- mod_timer(&board->timer, jiffies + board->poll);
- } else {
- board->irq = 0;
- }
-
- board->nports = chans;
- sx_dprintk(SX_DEBUG_INIT, "returning %d ports.", board->nports);
-
- func_exit();
- return chans;
-}
-
-static void __devinit printheader(void)
-{
- static int header_printed;
-
- if (!header_printed) {
- printk(KERN_INFO "Specialix SX driver "
- "(C) 1998/1999 R.E.Wolff@BitWizard.nl\n");
- printk(KERN_INFO "sx: version " __stringify(SX_VERSION) "\n");
- header_printed = 1;
- }
-}
-
-static int __devinit probe_sx(struct sx_board *board)
-{
- struct vpd_prom vpdp;
- char *p;
- int i;
-
- func_enter();
-
- if (!IS_CF_BOARD(board)) {
- sx_dprintk(SX_DEBUG_PROBE, "Going to verify vpd prom at %p.\n",
- board->base + SX_VPD_ROM);
-
- if (sx_debug & SX_DEBUG_PROBE)
- my_hd_io(board->base + SX_VPD_ROM, 0x40);
-
- p = (char *)&vpdp;
- for (i = 0; i < sizeof(struct vpd_prom); i++)
- *p++ = read_sx_byte(board, SX_VPD_ROM + i * 2);
-
- if (sx_debug & SX_DEBUG_PROBE)
- my_hd(&vpdp, 0x20);
-
- sx_dprintk(SX_DEBUG_PROBE, "checking identifier...\n");
-
- if (strncmp(vpdp.identifier, SX_VPD_IDENT_STRING, 16) != 0) {
- sx_dprintk(SX_DEBUG_PROBE, "Got non-SX identifier: "
- "'%s'\n", vpdp.identifier);
- return 0;
- }
- }
-
- printheader();
-
- if (!IS_CF_BOARD(board)) {
- printk(KERN_DEBUG "sx: Found an SX board at %lx\n",
- board->hw_base);
- printk(KERN_DEBUG "sx: hw_rev: %d, assembly level: %d, "
- "uniq ID:%08x, ",
- vpdp.hwrev, vpdp.hwass, vpdp.uniqid);
- printk("Manufactured: %d/%d\n", 1970 + vpdp.myear, vpdp.mweek);
-
- if ((((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) !=
- SX_PCI_UNIQUEID1) && (((vpdp.uniqid >> 24) &
- SX_UNIQUEID_MASK) != SX_ISA_UNIQUEID1)) {
- /* This might be a bit harsh. This was the primary
- reason the SX/ISA card didn't work at first... */
- printk(KERN_ERR "sx: Hmm. Not an SX/PCI or SX/ISA "
- "card. Sorry: giving up.\n");
- return (0);
- }
-
- if (((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) ==
- SX_ISA_UNIQUEID1) {
- if (((unsigned long)board->hw_base) & 0x8000) {
- printk(KERN_WARNING "sx: Warning: There may be "
- "hardware problems with the card at "
- "%lx.\n", board->hw_base);
- printk(KERN_WARNING "sx: Read sx.txt for more "
- "info.\n");
- }
- }
- }
-
- board->nports = -1;
-
- /* This resets the processor, and keeps it off the bus. */
- if (!sx_reset(board))
- return 0;
- sx_dprintk(SX_DEBUG_INIT, "reset the board...\n");
-
- func_exit();
- return 1;
-}
-
-#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
-
-/* Specialix probes for this card at 32k increments from 640k to 16M.
- I consider machines with less than 16M unlikely nowadays, so I'm
- not probing above 1Mb. Also, 0xa0000, 0xb0000, are taken by the VGA
- card. 0xe0000 and 0xf0000 are taken by the BIOS. That only leaves
- 0xc0000, 0xc8000, 0xd0000 and 0xd8000 . */
-
-static int __devinit probe_si(struct sx_board *board)
-{
- int i;
-
- func_enter();
- sx_dprintk(SX_DEBUG_PROBE, "Going to verify SI signature hw %lx at "
- "%p.\n", board->hw_base, board->base + SI2_ISA_ID_BASE);
-
- if (sx_debug & SX_DEBUG_PROBE)
- my_hd_io(board->base + SI2_ISA_ID_BASE, 0x8);
-
- if (!IS_EISA_BOARD(board)) {
- if (IS_SI1_BOARD(board)) {
- for (i = 0; i < 8; i++) {
- write_sx_byte(board, SI2_ISA_ID_BASE + 7 - i,i);
- }
- }
- for (i = 0; i < 8; i++) {
- if ((read_sx_byte(board, SI2_ISA_ID_BASE + 7 - i) & 7)
- != i) {
- func_exit();
- return 0;
- }
- }
- }
-
- /* Now we're pretty much convinced that there is an SI board here,
- but to prevent trouble, we'd better double check that we don't
- have an SI1 board when we're probing for an SI2 board.... */
-
- write_sx_byte(board, SI2_ISA_ID_BASE, 0x10);
- if (IS_SI1_BOARD(board)) {
- /* This should be an SI1 board, which has this
- location writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) {
- func_exit();
- return 0;
- }
- } else {
- /* This should be an SI2 board, which has the bottom
- 3 bits non-writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) {
- func_exit();
- return 0;
- }
- }
-
- /* Now we're pretty much convinced that there is an SI board here,
- but to prevent trouble, we'd better double check that we don't
- have an SI1 board when we're probing for an SI2 board.... */
-
- write_sx_byte(board, SI2_ISA_ID_BASE, 0x10);
- if (IS_SI1_BOARD(board)) {
- /* This should be an SI1 board, which has this
- location writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) {
- func_exit();
- return 0;
- }
- } else {
- /* This should be an SI2 board, which has the bottom
- 3 bits non-writable... */
- if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) {
- func_exit();
- return 0;
- }
- }
-
- printheader();
-
- printk(KERN_DEBUG "sx: Found an SI board at %lx\n", board->hw_base);
- /* Compared to the SX boards, it is a complete guess as to what
- this card is up to... */
-
- board->nports = -1;
-
- /* This resets the processor, and keeps it off the bus. */
- if (!sx_reset(board))
- return 0;
- sx_dprintk(SX_DEBUG_INIT, "reset the board...\n");
-
- func_exit();
- return 1;
-}
-#endif
-
-static const struct tty_operations sx_ops = {
- .break_ctl = sx_break,
- .open = sx_open,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = sx_ioctl,
- .throttle = sx_throttle,
- .unthrottle = sx_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
- .tiocmget = sx_tiocmget,
- .tiocmset = sx_tiocmset,
-};
-
-static const struct tty_port_operations sx_port_ops = {
- .carrier_raised = sx_carrier_raised,
-};
-
-static int sx_init_drivers(void)
-{
- int error;
-
- func_enter();
-
- sx_driver = alloc_tty_driver(sx_nports);
- if (!sx_driver)
- return 1;
- sx_driver->owner = THIS_MODULE;
- sx_driver->driver_name = "specialix_sx";
- sx_driver->name = "ttyX";
- sx_driver->major = SX_NORMAL_MAJOR;
- sx_driver->type = TTY_DRIVER_TYPE_SERIAL;
- sx_driver->subtype = SERIAL_TYPE_NORMAL;
- sx_driver->init_termios = tty_std_termios;
- sx_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- sx_driver->init_termios.c_ispeed = 9600;
- sx_driver->init_termios.c_ospeed = 9600;
- sx_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(sx_driver, &sx_ops);
-
- if ((error = tty_register_driver(sx_driver))) {
- put_tty_driver(sx_driver);
- printk(KERN_ERR "sx: Couldn't register sx driver, error = %d\n",
- error);
- return 1;
- }
- func_exit();
- return 0;
-}
-
-static int sx_init_portstructs(int nboards, int nports)
-{
- struct sx_board *board;
- struct sx_port *port;
- int i, j;
- int addr, chans;
- int portno;
-
- func_enter();
-
- /* Many drivers statically allocate the maximum number of ports
- There is no reason not to allocate them dynamically.
- Is there? -- REW */
- sx_ports = kcalloc(nports, sizeof(struct sx_port), GFP_KERNEL);
- if (!sx_ports)
- return -ENOMEM;
-
- port = sx_ports;
- for (i = 0; i < nboards; i++) {
- board = &boards[i];
- board->ports = port;
- for (j = 0; j < boards[i].nports; j++) {
- sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j);
- tty_port_init(&port->gs.port);
- port->gs.port.ops = &sx_port_ops;
- port->gs.magic = SX_MAGIC;
- port->gs.close_delay = HZ / 2;
- port->gs.closing_wait = 30 * HZ;
- port->board = board;
- port->gs.rd = &sx_real_driver;
-#ifdef NEW_WRITE_LOCKING
- port->gs.port_write_mutex = MUTEX;
-#endif
- spin_lock_init(&port->gs.driver_lock);
- /*
- * Initializing wait queue
- */
- port++;
- }
- }
-
- port = sx_ports;
- portno = 0;
- for (i = 0; i < nboards; i++) {
- board = &boards[i];
- board->port_base = portno;
- /* Possibly the configuration was rejected. */
- sx_dprintk(SX_DEBUG_PROBE, "Board has %d channels\n",
- board->nports);
- if (board->nports <= 0)
- continue;
- /* XXX byteorder ?? */
- for (addr = 0x80; addr != 0;
- addr = read_sx_word(board, addr) & 0x7fff) {
- chans = sx_read_module_byte(board, addr, mc_type);
- sx_dprintk(SX_DEBUG_PROBE, "Module at %x: %d "
- "channels\n", addr, chans);
- sx_dprintk(SX_DEBUG_PROBE, "Port at");
- for (j = 0; j < chans; j++) {
- /* The "sx-way" is the way it SHOULD be done.
- That way in the future, the firmware may for
- example pack the structures a bit more
- efficient. Neil tells me it isn't going to
- happen anytime soon though. */
- if (IS_SX_BOARD(board))
- port->ch_base = sx_read_module_word(
- board, addr + j * 2,
- mc_chan_pointer);
- else
- port->ch_base = addr + 0x100 + 0x300 *j;
-
- sx_dprintk(SX_DEBUG_PROBE, " %x",
- port->ch_base);
- port->line = portno++;
- port++;
- }
- sx_dprintk(SX_DEBUG_PROBE, "\n");
- }
- /* This has to be done earlier. */
- /* board->flags |= SX_BOARD_INITIALIZED; */
- }
-
- func_exit();
- return 0;
-}
-
-static unsigned int sx_find_free_board(void)
-{
- unsigned int i;
-
- for (i = 0; i < SX_NBOARDS; i++)
- if (!(boards[i].flags & SX_BOARD_PRESENT))
- break;
-
- return i;
-}
-
-static void __exit sx_release_drivers(void)
-{
- func_enter();
- tty_unregister_driver(sx_driver);
- put_tty_driver(sx_driver);
- func_exit();
-}
-
-static void __devexit sx_remove_card(struct sx_board *board,
- struct pci_dev *pdev)
-{
- if (board->flags & SX_BOARD_INITIALIZED) {
- /* The board should stop messing with us. (actually I mean the
- interrupt) */
- sx_reset(board);
- if ((board->irq) && (board->flags & SX_IRQ_ALLOCATED))
- free_irq(board->irq, board);
-
- /* It is safe/allowed to del_timer a non-active timer */
- del_timer(&board->timer);
- if (pdev) {
-#ifdef CONFIG_PCI
- iounmap(board->base2);
- pci_release_region(pdev, IS_CF_BOARD(board) ? 3 : 2);
-#endif
- } else {
- iounmap(board->base);
- release_region(board->hw_base, board->hw_len);
- }
-
- board->flags &= ~(SX_BOARD_INITIALIZED | SX_BOARD_PRESENT);
- }
-}
-
-#ifdef CONFIG_EISA
-
-static int __devinit sx_eisa_probe(struct device *dev)
-{
- struct eisa_device *edev = to_eisa_device(dev);
- struct sx_board *board;
- unsigned long eisa_slot = edev->base_addr;
- unsigned int i;
- int retval = -EIO;
-
- mutex_lock(&sx_boards_lock);
- i = sx_find_free_board();
- if (i == SX_NBOARDS) {
- mutex_unlock(&sx_boards_lock);
- goto err;
- }
- board = &boards[i];
- board->flags |= SX_BOARD_PRESENT;
- mutex_unlock(&sx_boards_lock);
-
- dev_info(dev, "XIO : Signature found in EISA slot %lu, "
- "Product %d Rev %d (REPORT THIS TO LKLM)\n",
- eisa_slot >> 12,
- inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 2),
- inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 3));
-
- board->eisa_base = eisa_slot;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SI_EISA_BOARD;
-
- board->hw_base = ((inb(eisa_slot + 0xc01) << 8) +
- inb(eisa_slot + 0xc00)) << 16;
- board->hw_len = SI2_EISA_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx")) {
- dev_err(dev, "can't request region\n");
- goto err_flag;
- }
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, SI2_EISA_WINDOW_LEN);
- if (!board->base) {
- dev_err(dev, "can't remap memory\n");
- goto err_reg;
- }
-
- sx_dprintk(SX_DEBUG_PROBE, "IO hw_base address: %lx\n", board->hw_base);
- sx_dprintk(SX_DEBUG_PROBE, "base: %p\n", board->base);
- board->irq = inb(eisa_slot + 0xc02) >> 4;
- sx_dprintk(SX_DEBUG_PROBE, "IRQ: %d\n", board->irq);
-
- if (!probe_si(board))
- goto err_unmap;
-
- dev_set_drvdata(dev, board);
-
- return 0;
-err_unmap:
- iounmap(board->base);
-err_reg:
- release_region(board->hw_base, board->hw_len);
-err_flag:
- board->flags &= ~SX_BOARD_PRESENT;
-err:
- return retval;
-}
-
-static int __devexit sx_eisa_remove(struct device *dev)
-{
- struct sx_board *board = dev_get_drvdata(dev);
-
- sx_remove_card(board, NULL);
-
- return 0;
-}
-
-static struct eisa_device_id sx_eisa_tbl[] = {
- { "SLX" },
- { "" }
-};
-
-MODULE_DEVICE_TABLE(eisa, sx_eisa_tbl);
-
-static struct eisa_driver sx_eisadriver = {
- .id_table = sx_eisa_tbl,
- .driver = {
- .name = "sx",
- .probe = sx_eisa_probe,
- .remove = __devexit_p(sx_eisa_remove),
- }
-};
-
-#endif
-
-#ifdef CONFIG_PCI
- /********************************************************
- * Setting bit 17 in the CNTRL register of the PLX 9050 *
- * chip forces a retry on writes while a read is pending.*
- * This is to prevent the card locking up on Intel Xeon *
- * multiprocessor systems with the NX chipset. -- NV *
- ********************************************************/
-
-/* Newer cards are produced with this bit set from the configuration
- EEprom. As the bit is read/write for the CPU, we can fix it here,
- if we detect that it isn't set correctly. -- REW */
-
-static void __devinit fix_sx_pci(struct pci_dev *pdev, struct sx_board *board)
-{
- unsigned int hwbase;
- void __iomem *rebase;
- unsigned int t;
-
-#define CNTRL_REG_OFFSET 0x50
-#define CNTRL_REG_GOODVALUE 0x18260000
-
- pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &hwbase);
- hwbase &= PCI_BASE_ADDRESS_MEM_MASK;
- rebase = ioremap_nocache(hwbase, 0x80);
- t = readl(rebase + CNTRL_REG_OFFSET);
- if (t != CNTRL_REG_GOODVALUE) {
- printk(KERN_DEBUG "sx: performing cntrl reg fix: %08x -> "
- "%08x\n", t, CNTRL_REG_GOODVALUE);
- writel(CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET);
- }
- iounmap(rebase);
-}
-#endif
-
-static int __devinit sx_pci_probe(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
-#ifdef CONFIG_PCI
- struct sx_board *board;
- unsigned int i, reg;
- int retval = -EIO;
-
- mutex_lock(&sx_boards_lock);
- i = sx_find_free_board();
- if (i == SX_NBOARDS) {
- mutex_unlock(&sx_boards_lock);
- goto err;
- }
- board = &boards[i];
- board->flags |= SX_BOARD_PRESENT;
- mutex_unlock(&sx_boards_lock);
-
- retval = pci_enable_device(pdev);
- if (retval)
- goto err_flag;
-
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= (pdev->subsystem_vendor == 0x200) ? SX_PCI_BOARD :
- SX_CFPCI_BOARD;
-
- /* CF boards use base address 3.... */
- reg = IS_CF_BOARD(board) ? 3 : 2;
- retval = pci_request_region(pdev, reg, "sx");
- if (retval) {
- dev_err(&pdev->dev, "can't request region\n");
- goto err_flag;
- }
- board->hw_base = pci_resource_start(pdev, reg);
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, WINDOW_LEN(board));
- if (!board->base) {
- dev_err(&pdev->dev, "ioremap failed\n");
- goto err_reg;
- }
-
- /* Most of the stuff on the CF board is offset by 0x18000 .... */
- if (IS_CF_BOARD(board))
- board->base += 0x18000;
-
- board->irq = pdev->irq;
-
- dev_info(&pdev->dev, "Got a specialix card: %p(%d) %x.\n", board->base,
- board->irq, board->flags);
-
- if (!probe_sx(board)) {
- retval = -EIO;
- goto err_unmap;
- }
-
- fix_sx_pci(pdev, board);
-
- pci_set_drvdata(pdev, board);
-
- return 0;
-err_unmap:
- iounmap(board->base2);
-err_reg:
- pci_release_region(pdev, reg);
-err_flag:
- board->flags &= ~SX_BOARD_PRESENT;
-err:
- return retval;
-#else
- return -ENODEV;
-#endif
-}
-
-static void __devexit sx_pci_remove(struct pci_dev *pdev)
-{
- struct sx_board *board = pci_get_drvdata(pdev);
-
- sx_remove_card(board, pdev);
-}
-
-/* Specialix has a whole bunch of cards with 0x2000 as the device ID. They say
- its because the standard requires it. So check for SUBVENDOR_ID. */
-static struct pci_device_id sx_pci_tbl[] = {
- { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8,
- .subvendor = PCI_ANY_ID, .subdevice = 0x0200 },
- { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8,
- .subvendor = PCI_ANY_ID, .subdevice = 0x0300 },
- { 0 }
-};
-
-MODULE_DEVICE_TABLE(pci, sx_pci_tbl);
-
-static struct pci_driver sx_pcidriver = {
- .name = "sx",
- .id_table = sx_pci_tbl,
- .probe = sx_pci_probe,
- .remove = __devexit_p(sx_pci_remove)
-};
-
-static int __init sx_init(void)
-{
-#ifdef CONFIG_EISA
- int retval1;
-#endif
-#ifdef CONFIG_ISA
- struct sx_board *board;
- unsigned int i;
-#endif
- unsigned int found = 0;
- int retval;
-
- func_enter();
- sx_dprintk(SX_DEBUG_INIT, "Initing sx module... (sx_debug=%d)\n",
- sx_debug);
- if (abs((long)(&sx_debug) - sx_debug) < 0x10000) {
- printk(KERN_WARNING "sx: sx_debug is an address, instead of a "
- "value. Assuming -1.\n(%p)\n", &sx_debug);
- sx_debug = -1;
- }
-
- if (misc_register(&sx_fw_device) < 0) {
- printk(KERN_ERR "SX: Unable to register firmware loader "
- "driver.\n");
- return -EIO;
- }
-#ifdef CONFIG_ISA
- for (i = 0; i < NR_SX_ADDRS; i++) {
- board = &boards[found];
- board->hw_base = sx_probe_addrs[i];
- board->hw_len = SX_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx"))
- continue;
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, board->hw_len);
- if (!board->base)
- goto err_sx_reg;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SX_ISA_BOARD;
- board->irq = sx_irqmask ? -1 : 0;
-
- if (probe_sx(board)) {
- board->flags |= SX_BOARD_PRESENT;
- found++;
- } else {
- iounmap(board->base);
-err_sx_reg:
- release_region(board->hw_base, board->hw_len);
- }
- }
-
- for (i = 0; i < NR_SI_ADDRS; i++) {
- board = &boards[found];
- board->hw_base = si_probe_addrs[i];
- board->hw_len = SI2_ISA_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx"))
- continue;
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, board->hw_len);
- if (!board->base)
- goto err_si_reg;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SI_ISA_BOARD;
- board->irq = sx_irqmask ? -1 : 0;
-
- if (probe_si(board)) {
- board->flags |= SX_BOARD_PRESENT;
- found++;
- } else {
- iounmap(board->base);
-err_si_reg:
- release_region(board->hw_base, board->hw_len);
- }
- }
- for (i = 0; i < NR_SI1_ADDRS; i++) {
- board = &boards[found];
- board->hw_base = si1_probe_addrs[i];
- board->hw_len = SI1_ISA_WINDOW_LEN;
- if (!request_region(board->hw_base, board->hw_len, "sx"))
- continue;
- board->base2 =
- board->base = ioremap_nocache(board->hw_base, board->hw_len);
- if (!board->base)
- goto err_si1_reg;
- board->flags &= ~SX_BOARD_TYPE;
- board->flags |= SI1_ISA_BOARD;
- board->irq = sx_irqmask ? -1 : 0;
-
- if (probe_si(board)) {
- board->flags |= SX_BOARD_PRESENT;
- found++;
- } else {
- iounmap(board->base);
-err_si1_reg:
- release_region(board->hw_base, board->hw_len);
- }
- }
-#endif
-#ifdef CONFIG_EISA
- retval1 = eisa_driver_register(&sx_eisadriver);
-#endif
- retval = pci_register_driver(&sx_pcidriver);
-
- if (found) {
- printk(KERN_INFO "sx: total of %d boards detected.\n", found);
- retval = 0;
- } else if (retval) {
-#ifdef CONFIG_EISA
- retval = retval1;
- if (retval1)
-#endif
- misc_deregister(&sx_fw_device);
- }
-
- func_exit();
- return retval;
-}
-
-static void __exit sx_exit(void)
-{
- int i;
-
- func_enter();
-#ifdef CONFIG_EISA
- eisa_driver_unregister(&sx_eisadriver);
-#endif
- pci_unregister_driver(&sx_pcidriver);
-
- for (i = 0; i < SX_NBOARDS; i++)
- sx_remove_card(&boards[i], NULL);
-
- if (misc_deregister(&sx_fw_device) < 0) {
- printk(KERN_INFO "sx: couldn't deregister firmware loader "
- "device\n");
- }
- sx_dprintk(SX_DEBUG_CLEANUP, "Cleaning up drivers (%d)\n",
- sx_initialized);
- if (sx_initialized)
- sx_release_drivers();
-
- kfree(sx_ports);
- func_exit();
-}
-
-module_init(sx_init);
-module_exit(sx_exit);
diff --git a/drivers/char/sx.h b/drivers/char/sx.h
deleted file mode 100644
index 87c2defdead..00000000000
--- a/drivers/char/sx.h
+++ /dev/null
@@ -1,201 +0,0 @@
-
-/*
- * sx.h
- *
- * Copyright (C) 1998/1999 R.E.Wolff@BitWizard.nl
- *
- * SX serial driver.
- * -- Supports SI, XIO and SX host cards.
- * -- Supports TAs, MTAs and SXDCs.
- *
- * Version 1.3 -- March, 1999.
- *
- */
-
-#define SX_NBOARDS 4
-#define SX_PORTSPERBOARD 32
-#define SX_NPORTS (SX_NBOARDS * SX_PORTSPERBOARD)
-
-#ifdef __KERNEL__
-
-#define SX_MAGIC 0x12345678
-
-struct sx_port {
- struct gs_port gs;
- struct wait_queue *shutdown_wait;
- int ch_base;
- int c_dcd;
- struct sx_board *board;
- int line;
- unsigned long locks;
-};
-
-struct sx_board {
- int magic;
- void __iomem *base;
- void __iomem *base2;
- unsigned long hw_base;
- resource_size_t hw_len;
- int eisa_base;
- int port_base; /* Number of the first port */
- struct sx_port *ports;
- int nports;
- int flags;
- int irq;
- int poll;
- int ta_type;
- struct timer_list timer;
- unsigned long locks;
-};
-
-struct vpd_prom {
- unsigned short id;
- char hwrev;
- char hwass;
- int uniqid;
- char myear;
- char mweek;
- char hw_feature[5];
- char oem_id;
- char identifier[16];
-};
-
-#ifndef MOD_RS232DB25MALE
-#define MOD_RS232DB25MALE 0x0a
-#endif
-
-#define SI_ISA_BOARD 0x00000001
-#define SX_ISA_BOARD 0x00000002
-#define SX_PCI_BOARD 0x00000004
-#define SX_CFPCI_BOARD 0x00000008
-#define SX_CFISA_BOARD 0x00000010
-#define SI_EISA_BOARD 0x00000020
-#define SI1_ISA_BOARD 0x00000040
-
-#define SX_BOARD_PRESENT 0x00001000
-#define SX_BOARD_INITIALIZED 0x00002000
-#define SX_IRQ_ALLOCATED 0x00004000
-
-#define SX_BOARD_TYPE 0x000000ff
-
-#define IS_SX_BOARD(board) (board->flags & (SX_PCI_BOARD | SX_CFPCI_BOARD | \
- SX_ISA_BOARD | SX_CFISA_BOARD))
-
-#define IS_SI_BOARD(board) (board->flags & SI_ISA_BOARD)
-#define IS_SI1_BOARD(board) (board->flags & SI1_ISA_BOARD)
-
-#define IS_EISA_BOARD(board) (board->flags & SI_EISA_BOARD)
-
-#define IS_CF_BOARD(board) (board->flags & (SX_CFISA_BOARD | SX_CFPCI_BOARD))
-
-/* The SI processor clock is required to calculate the cc_int_count register
- value for the SI cards. */
-#define SI_PROCESSOR_CLOCK 25000000
-
-
-/* port flags */
-/* Make sure these don't clash with gs flags or async flags */
-#define SX_RX_THROTTLE 0x0000001
-
-
-
-#define SX_PORT_TRANSMIT_LOCK 0
-#define SX_BOARD_INTR_LOCK 0
-
-
-
-/* Debug flags. Add these together to get more debug info. */
-
-#define SX_DEBUG_OPEN 0x00000001
-#define SX_DEBUG_SETTING 0x00000002
-#define SX_DEBUG_FLOW 0x00000004
-#define SX_DEBUG_MODEMSIGNALS 0x00000008
-#define SX_DEBUG_TERMIOS 0x00000010
-#define SX_DEBUG_TRANSMIT 0x00000020
-#define SX_DEBUG_RECEIVE 0x00000040
-#define SX_DEBUG_INTERRUPTS 0x00000080
-#define SX_DEBUG_PROBE 0x00000100
-#define SX_DEBUG_INIT 0x00000200
-#define SX_DEBUG_CLEANUP 0x00000400
-#define SX_DEBUG_CLOSE 0x00000800
-#define SX_DEBUG_FIRMWARE 0x00001000
-#define SX_DEBUG_MEMTEST 0x00002000
-
-#define SX_DEBUG_ALL 0xffffffff
-
-
-#define O_OTHER(tty) \
- ((O_OLCUC(tty)) ||\
- (O_ONLCR(tty)) ||\
- (O_OCRNL(tty)) ||\
- (O_ONOCR(tty)) ||\
- (O_ONLRET(tty)) ||\
- (O_OFILL(tty)) ||\
- (O_OFDEL(tty)) ||\
- (O_NLDLY(tty)) ||\
- (O_CRDLY(tty)) ||\
- (O_TABDLY(tty)) ||\
- (O_BSDLY(tty)) ||\
- (O_VTDLY(tty)) ||\
- (O_FFDLY(tty)))
-
-/* Same for input. */
-#define I_OTHER(tty) \
- ((I_INLCR(tty)) ||\
- (I_IGNCR(tty)) ||\
- (I_ICRNL(tty)) ||\
- (I_IUCLC(tty)) ||\
- (L_ISIG(tty)))
-
-#define MOD_TA ( TA>>4)
-#define MOD_MTA (MTA_CD1400>>4)
-#define MOD_SXDC ( SXDC>>4)
-
-
-/* We copy the download code over to the card in chunks of ... bytes */
-#define SX_CHUNK_SIZE 128
-
-#endif /* __KERNEL__ */
-
-
-
-/* Specialix document 6210046-11 page 3 */
-#define SPX(X) (('S'<<24) | ('P' << 16) | (X))
-
-/* Specialix-Linux specific IOCTLS. */
-#define SPXL(X) (SPX(('L' << 8) | (X)))
-
-
-#define SXIO_SET_BOARD SPXL(0x01)
-#define SXIO_GET_TYPE SPXL(0x02)
-#define SXIO_DOWNLOAD SPXL(0x03)
-#define SXIO_INIT SPXL(0x04)
-#define SXIO_SETDEBUG SPXL(0x05)
-#define SXIO_GETDEBUG SPXL(0x06)
-#define SXIO_DO_RAMTEST SPXL(0x07)
-#define SXIO_SETGSDEBUG SPXL(0x08)
-#define SXIO_GETGSDEBUG SPXL(0x09)
-#define SXIO_GETNPORTS SPXL(0x0a)
-
-
-#ifndef SXCTL_MISC_MINOR
-/* Allow others to gather this into "major.h" or something like that */
-#define SXCTL_MISC_MINOR 167
-#endif
-
-#ifndef SX_NORMAL_MAJOR
-/* This allows overriding on the compiler commandline, or in a "major.h"
- include or something like that */
-#define SX_NORMAL_MAJOR 32
-#define SX_CALLOUT_MAJOR 33
-#endif
-
-
-#define SX_TYPE_SX 0x01
-#define SX_TYPE_SI 0x02
-#define SX_TYPE_CF 0x03
-
-
-#define WINDOW_LEN(board) (IS_CF_BOARD(board)?0x20000:SX_WINDOW_LEN)
-/* Need a #define for ^^^^^^^ !!! */
-
diff --git a/drivers/char/sxboards.h b/drivers/char/sxboards.h
deleted file mode 100644
index 427927dc7db..00000000000
--- a/drivers/char/sxboards.h
+++ /dev/null
@@ -1,206 +0,0 @@
-/************************************************************************/
-/* */
-/* Title : SX/SI/XIO Board Hardware Definitions */
-/* */
-/* Author : N.P.Vassallo */
-/* */
-/* Creation : 16th March 1998 */
-/* */
-/* Version : 3.0.0 */
-/* */
-/* Copyright : (c) Specialix International Ltd. 1998 */
-/* */
-/* Description : Prototypes, structures and definitions */
-/* describing the SX/SI/XIO board hardware */
-/* */
-/************************************************************************/
-
-/* History...
-
-3.0.0 16/03/98 NPV Creation.
-
-*/
-
-#ifndef _sxboards_h /* If SXBOARDS.H not already defined */
-#define _sxboards_h 1
-
-/*****************************************************************************
-******************************* ******************************
-******************************* Board Types ******************************
-******************************* ******************************
-*****************************************************************************/
-
-/* BUS types... */
-#define BUS_ISA 0
-#define BUS_MCA 1
-#define BUS_EISA 2
-#define BUS_PCI 3
-
-/* Board phases... */
-#define SI1_Z280 1
-#define SI2_Z280 2
-#define SI3_T225 3
-
-/* Board types... */
-#define CARD_TYPE(bus,phase) (bus<<4|phase)
-#define CARD_BUS(type) ((type>>4)&0xF)
-#define CARD_PHASE(type) (type&0xF)
-
-#define TYPE_SI1_ISA CARD_TYPE(BUS_ISA,SI1_Z280)
-#define TYPE_SI2_ISA CARD_TYPE(BUS_ISA,SI2_Z280)
-#define TYPE_SI2_EISA CARD_TYPE(BUS_EISA,SI2_Z280)
-#define TYPE_SI2_PCI CARD_TYPE(BUS_PCI,SI2_Z280)
-
-#define TYPE_SX_ISA CARD_TYPE(BUS_ISA,SI3_T225)
-#define TYPE_SX_PCI CARD_TYPE(BUS_PCI,SI3_T225)
-/*****************************************************************************
-****************************** ******************************
-****************************** Phase 1 Z280 ******************************
-****************************** ******************************
-*****************************************************************************/
-
-/* ISA board details... */
-#define SI1_ISA_WINDOW_LEN 0x10000 /* 64 Kbyte shared memory window */
-//#define SI1_ISA_MEMORY_LEN 0x8000 /* Usable memory - unused define*/
-//#define SI1_ISA_ADDR_LOW 0x0A0000 /* Lowest address = 640 Kbyte */
-//#define SI1_ISA_ADDR_HIGH 0xFF8000 /* Highest address = 16Mbyte - 32Kbyte */
-//#define SI2_ISA_ADDR_STEP SI2_ISA_WINDOW_LEN/* ISA board address step */
-//#define SI2_ISA_IRQ_MASK 0x9800 /* IRQs 15,12,11 */
-
-/* ISA board, register definitions... */
-//#define SI2_ISA_ID_BASE 0x7FF8 /* READ: Board ID string */
-#define SI1_ISA_RESET 0x8000 /* WRITE: Host Reset */
-#define SI1_ISA_RESET_CLEAR 0xc000 /* WRITE: Host Reset clear*/
-#define SI1_ISA_WAIT 0x9000 /* WRITE: Host wait */
-#define SI1_ISA_WAIT_CLEAR 0xd000 /* WRITE: Host wait clear */
-#define SI1_ISA_INTCL 0xa000 /* WRITE: Host Reset */
-#define SI1_ISA_INTCL_CLEAR 0xe000 /* WRITE: Host Reset */
-
-
-/*****************************************************************************
-****************************** ******************************
-****************************** Phase 2 Z280 ******************************
-****************************** ******************************
-*****************************************************************************/
-
-/* ISA board details... */
-#define SI2_ISA_WINDOW_LEN 0x8000 /* 32 Kbyte shared memory window */
-#define SI2_ISA_MEMORY_LEN 0x7FF8 /* Usable memory */
-#define SI2_ISA_ADDR_LOW 0x0A0000 /* Lowest address = 640 Kbyte */
-#define SI2_ISA_ADDR_HIGH 0xFF8000 /* Highest address = 16Mbyte - 32Kbyte */
-#define SI2_ISA_ADDR_STEP SI2_ISA_WINDOW_LEN/* ISA board address step */
-#define SI2_ISA_IRQ_MASK 0x9800 /* IRQs 15,12,11 */
-
-/* ISA board, register definitions... */
-#define SI2_ISA_ID_BASE 0x7FF8 /* READ: Board ID string */
-#define SI2_ISA_RESET SI2_ISA_ID_BASE /* WRITE: Host Reset */
-#define SI2_ISA_IRQ11 (SI2_ISA_ID_BASE+1) /* WRITE: Set IRQ11 */
-#define SI2_ISA_IRQ12 (SI2_ISA_ID_BASE+2) /* WRITE: Set IRQ12 */
-#define SI2_ISA_IRQ15 (SI2_ISA_ID_BASE+3) /* WRITE: Set IRQ15 */
-#define SI2_ISA_IRQSET (SI2_ISA_ID_BASE+4) /* WRITE: Set Host Interrupt */
-#define SI2_ISA_INTCLEAR (SI2_ISA_ID_BASE+5) /* WRITE: Enable Host Interrupt */
-
-#define SI2_ISA_IRQ11_SET 0x10
-#define SI2_ISA_IRQ11_CLEAR 0x00
-#define SI2_ISA_IRQ12_SET 0x10
-#define SI2_ISA_IRQ12_CLEAR 0x00
-#define SI2_ISA_IRQ15_SET 0x10
-#define SI2_ISA_IRQ15_CLEAR 0x00
-#define SI2_ISA_INTCLEAR_SET 0x10
-#define SI2_ISA_INTCLEAR_CLEAR 0x00
-#define SI2_ISA_IRQSET_CLEAR 0x10
-#define SI2_ISA_IRQSET_SET 0x00
-#define SI2_ISA_RESET_SET 0x00
-#define SI2_ISA_RESET_CLEAR 0x10
-
-/* PCI board details... */
-#define SI2_PCI_WINDOW_LEN 0x100000 /* 1 Mbyte memory window */
-
-/* PCI board register definitions... */
-#define SI2_PCI_SET_IRQ 0x40001 /* Set Host Interrupt */
-#define SI2_PCI_RESET 0xC0001 /* Host Reset */
-
-/*****************************************************************************
-****************************** ******************************
-****************************** Phase 3 T225 ******************************
-****************************** ******************************
-*****************************************************************************/
-
-/* General board details... */
-#define SX_WINDOW_LEN 64*1024 /* 64 Kbyte memory window */
-
-/* ISA board details... */
-#define SX_ISA_ADDR_LOW 0x0A0000 /* Lowest address = 640 Kbyte */
-#define SX_ISA_ADDR_HIGH 0xFF8000 /* Highest address = 16Mbyte - 32Kbyte */
-#define SX_ISA_ADDR_STEP SX_WINDOW_LEN /* ISA board address step */
-#define SX_ISA_IRQ_MASK 0x9E00 /* IRQs 15,12,11,10,9 */
-
-/* Hardware register definitions... */
-#define SX_EVENT_STATUS 0x7800 /* READ: T225 Event Status */
-#define SX_EVENT_STROBE 0x7800 /* WRITE: T225 Event Strobe */
-#define SX_EVENT_ENABLE 0x7880 /* WRITE: T225 Event Enable */
-#define SX_VPD_ROM 0x7C00 /* READ: Vital Product Data ROM */
-#define SX_CONFIG 0x7C00 /* WRITE: Host Configuration Register */
-#define SX_IRQ_STATUS 0x7C80 /* READ: Host Interrupt Status */
-#define SX_SET_IRQ 0x7C80 /* WRITE: Set Host Interrupt */
-#define SX_RESET_STATUS 0x7D00 /* READ: Host Reset Status */
-#define SX_RESET 0x7D00 /* WRITE: Host Reset */
-#define SX_RESET_IRQ 0x7D80 /* WRITE: Reset Host Interrupt */
-
-/* SX_VPD_ROM definitions... */
-#define SX_VPD_SLX_ID1 0x00
-#define SX_VPD_SLX_ID2 0x01
-#define SX_VPD_HW_REV 0x02
-#define SX_VPD_HW_ASSEM 0x03
-#define SX_VPD_UNIQUEID4 0x04
-#define SX_VPD_UNIQUEID3 0x05
-#define SX_VPD_UNIQUEID2 0x06
-#define SX_VPD_UNIQUEID1 0x07
-#define SX_VPD_MANU_YEAR 0x08
-#define SX_VPD_MANU_WEEK 0x09
-#define SX_VPD_IDENT 0x10
-#define SX_VPD_IDENT_STRING "JET HOST BY KEV#"
-
-/* SX unique identifiers... */
-#define SX_UNIQUEID_MASK 0xF0
-#define SX_ISA_UNIQUEID1 0x20
-#define SX_PCI_UNIQUEID1 0x50
-
-/* SX_CONFIG definitions... */
-#define SX_CONF_BUSEN 0x02 /* Enable T225 memory and I/O */
-#define SX_CONF_HOSTIRQ 0x04 /* Enable board to host interrupt */
-
-/* SX bootstrap... */
-#define SX_BOOTSTRAP "\x28\x20\x21\x02\x60\x0a"
-#define SX_BOOTSTRAP_SIZE 6
-#define SX_BOOTSTRAP_ADDR (0x8000-SX_BOOTSTRAP_SIZE)
-
-/*****************************************************************************
-********************************** **********************************
-********************************** EISA **********************************
-********************************** **********************************
-*****************************************************************************/
-
-#define SI2_EISA_OFF 0x42
-#define SI2_EISA_VAL 0x01
-#define SI2_EISA_WINDOW_LEN 0x10000
-
-/*****************************************************************************
-*********************************** **********************************
-*********************************** PCI **********************************
-*********************************** **********************************
-*****************************************************************************/
-
-/* General definitions... */
-
-#define SPX_VENDOR_ID 0x11CB /* Assigned by the PCI SIG */
-#define SPX_DEVICE_ID 0x4000 /* SI/XIO boards */
-#define SPX_PLXDEVICE_ID 0x2000 /* SX boards */
-
-#define SPX_SUB_VENDOR_ID SPX_VENDOR_ID /* Same as vendor id */
-#define SI2_SUB_SYS_ID 0x400 /* Phase 2 (Z280) board */
-#define SX_SUB_SYS_ID 0x200 /* Phase 3 (t225) board */
-
-#endif /*_sxboards_h */
-
-/* End of SXBOARDS.H */
diff --git a/drivers/char/sxwindow.h b/drivers/char/sxwindow.h
deleted file mode 100644
index cf01b662aef..00000000000
--- a/drivers/char/sxwindow.h
+++ /dev/null
@@ -1,393 +0,0 @@
-/************************************************************************/
-/* */
-/* Title : SX Shared Memory Window Structure */
-/* */
-/* Author : N.P.Vassallo */
-/* */
-/* Creation : 16th March 1998 */
-/* */
-/* Version : 3.0.0 */
-/* */
-/* Copyright : (c) Specialix International Ltd. 1998 */
-/* */
-/* Description : Prototypes, structures and definitions */
-/* describing the SX/SI/XIO cards shared */
-/* memory window structure: */
-/* SXCARD */
-/* SXMODULE */
-/* SXCHANNEL */
-/* */
-/************************************************************************/
-
-/* History...
-
-3.0.0 16/03/98 NPV Creation. (based on STRUCT.H)
-
-*/
-
-#ifndef _sxwindow_h /* If SXWINDOW.H not already defined */
-#define _sxwindow_h 1
-
-/*****************************************************************************
-*************************** ***************************
-*************************** Common Definitions ***************************
-*************************** ***************************
-*****************************************************************************/
-
-typedef struct _SXCARD *PSXCARD; /* SXCARD structure pointer */
-typedef struct _SXMODULE *PMOD; /* SXMODULE structure pointer */
-typedef struct _SXCHANNEL *PCHAN; /* SXCHANNEL structure pointer */
-
-/*****************************************************************************
-********************************* *********************************
-********************************* SXCARD *********************************
-********************************* *********************************
-*****************************************************************************/
-
-typedef struct _SXCARD
-{
- BYTE cc_init_status; /* 0x00 Initialisation status */
- BYTE cc_mem_size; /* 0x01 Size of memory on card */
- WORD cc_int_count; /* 0x02 Interrupt count */
- WORD cc_revision; /* 0x04 Download code revision */
- BYTE cc_isr_count; /* 0x06 Count when ISR is run */
- BYTE cc_main_count; /* 0x07 Count when main loop is run */
- WORD cc_int_pending; /* 0x08 Interrupt pending */
- WORD cc_poll_count; /* 0x0A Count when poll is run */
- BYTE cc_int_set_count; /* 0x0C Count when host interrupt is set */
- BYTE cc_rfu[0x80 - 0x0D]; /* 0x0D Pad structure to 128 bytes (0x80) */
-
-} SXCARD;
-
-/* SXCARD.cc_init_status definitions... */
-#define ADAPTERS_FOUND (BYTE)0x01
-#define NO_ADAPTERS_FOUND (BYTE)0xFF
-
-/* SXCARD.cc_mem_size definitions... */
-#define SX_MEMORY_SIZE (BYTE)0x40
-
-/* SXCARD.cc_int_count definitions... */
-#define INT_COUNT_DEFAULT 100 /* Hz */
-
-/*****************************************************************************
-******************************** ********************************
-******************************** SXMODULE ********************************
-******************************** ********************************
-*****************************************************************************/
-
-#define TOP_POINTER(a) ((a)|0x8000) /* Sets top bit of word */
-#define UNTOP_POINTER(a) ((a)&~0x8000) /* Clears top bit of word */
-
-typedef struct _SXMODULE
-{
- WORD mc_next; /* 0x00 Next module "pointer" (ORed with 0x8000) */
- BYTE mc_type; /* 0x02 Type of TA in terms of number of channels */
- BYTE mc_mod_no; /* 0x03 Module number on SI bus cable (0 closest to card) */
- BYTE mc_dtr; /* 0x04 Private DTR copy (TA only) */
- BYTE mc_rfu1; /* 0x05 Reserved */
- WORD mc_uart; /* 0x06 UART base address for this module */
- BYTE mc_chip; /* 0x08 Chip type / number of ports */
- BYTE mc_current_uart; /* 0x09 Current uart selected for this module */
-#ifdef DOWNLOAD
- PCHAN mc_chan_pointer[8]; /* 0x0A Pointer to each channel structure */
-#else
- WORD mc_chan_pointer[8]; /* 0x0A Define as WORD if not compiling into download */
-#endif
- WORD mc_rfu2; /* 0x1A Reserved */
- BYTE mc_opens1; /* 0x1C Number of open ports on first four ports on MTA/SXDC */
- BYTE mc_opens2; /* 0x1D Number of open ports on second four ports on MTA/SXDC */
- BYTE mc_mods; /* 0x1E Types of connector module attached to MTA/SXDC */
- BYTE mc_rev1; /* 0x1F Revision of first CD1400 on MTA/SXDC */
- BYTE mc_rev2; /* 0x20 Revision of second CD1400 on MTA/SXDC */
- BYTE mc_mtaasic_rev; /* 0x21 Revision of MTA ASIC 1..4 -> A, B, C, D */
- BYTE mc_rfu3[0x100 - 0x22]; /* 0x22 Pad structure to 256 bytes (0x100) */
-
-} SXMODULE;
-
-/* SXMODULE.mc_type definitions... */
-#define FOUR_PORTS (BYTE)4
-#define EIGHT_PORTS (BYTE)8
-
-/* SXMODULE.mc_chip definitions... */
-#define CHIP_MASK 0xF0
-#define TA (BYTE)0
-#define TA4 (TA | FOUR_PORTS)
-#define TA8 (TA | EIGHT_PORTS)
-#define TA4_ASIC (BYTE)0x0A
-#define TA8_ASIC (BYTE)0x0B
-#define MTA_CD1400 (BYTE)0x28
-#define SXDC (BYTE)0x48
-
-/* SXMODULE.mc_mods definitions... */
-#define MOD_RS232DB25 0x00 /* RS232 DB25 (socket/plug) */
-#define MOD_RS232RJ45 0x01 /* RS232 RJ45 (shielded/opto-isolated) */
-#define MOD_RESERVED_2 0x02 /* Reserved (RS485) */
-#define MOD_RS422DB25 0x03 /* RS422 DB25 Socket */
-#define MOD_RESERVED_4 0x04 /* Reserved */
-#define MOD_PARALLEL 0x05 /* Parallel */
-#define MOD_RESERVED_6 0x06 /* Reserved (RS423) */
-#define MOD_RESERVED_7 0x07 /* Reserved */
-#define MOD_2_RS232DB25 0x08 /* Rev 2.0 RS232 DB25 (socket/plug) */
-#define MOD_2_RS232RJ45 0x09 /* Rev 2.0 RS232 RJ45 */
-#define MOD_RESERVED_A 0x0A /* Rev 2.0 Reserved */
-#define MOD_2_RS422DB25 0x0B /* Rev 2.0 RS422 DB25 */
-#define MOD_RESERVED_C 0x0C /* Rev 2.0 Reserved */
-#define MOD_2_PARALLEL 0x0D /* Rev 2.0 Parallel */
-#define MOD_RESERVED_E 0x0E /* Rev 2.0 Reserved */
-#define MOD_BLANK 0x0F /* Blank Panel */
-
-/*****************************************************************************
-******************************** *******************************
-******************************** SXCHANNEL *******************************
-******************************** *******************************
-*****************************************************************************/
-
-#define TX_BUFF_OFFSET 0x60 /* Transmit buffer offset in channel structure */
-#define BUFF_POINTER(a) (((a)+TX_BUFF_OFFSET)|0x8000)
-#define UNBUFF_POINTER(a) (jet_channel*)(((a)&~0x8000)-TX_BUFF_OFFSET)
-#define BUFFER_SIZE 256
-#define HIGH_WATER ((BUFFER_SIZE / 4) * 3)
-#define LOW_WATER (BUFFER_SIZE / 4)
-
-typedef struct _SXCHANNEL
-{
- WORD next_item; /* 0x00 Offset from window base of next channels hi_txbuf (ORred with 0x8000) */
- WORD addr_uart; /* 0x02 INTERNAL pointer to uart address. Includes FASTPATH bit */
- WORD module; /* 0x04 Offset from window base of parent SXMODULE structure */
- BYTE type; /* 0x06 Chip type / number of ports (copy of mc_chip) */
- BYTE chan_number; /* 0x07 Channel number on the TA/MTA/SXDC */
- WORD xc_status; /* 0x08 Flow control and I/O status */
- BYTE hi_rxipos; /* 0x0A Receive buffer input index */
- BYTE hi_rxopos; /* 0x0B Receive buffer output index */
- BYTE hi_txopos; /* 0x0C Transmit buffer output index */
- BYTE hi_txipos; /* 0x0D Transmit buffer input index */
- BYTE hi_hstat; /* 0x0E Command register */
- BYTE dtr_bit; /* 0x0F INTERNAL DTR control byte (TA only) */
- BYTE txon; /* 0x10 INTERNAL copy of hi_txon */
- BYTE txoff; /* 0x11 INTERNAL copy of hi_txoff */
- BYTE rxon; /* 0x12 INTERNAL copy of hi_rxon */
- BYTE rxoff; /* 0x13 INTERNAL copy of hi_rxoff */
- BYTE hi_mr1; /* 0x14 Mode Register 1 (databits,parity,RTS rx flow)*/
- BYTE hi_mr2; /* 0x15 Mode Register 2 (stopbits,local,CTS tx flow)*/
- BYTE hi_csr; /* 0x16 Clock Select Register (baud rate) */
- BYTE hi_op; /* 0x17 Modem Output Signal */
- BYTE hi_ip; /* 0x18 Modem Input Signal */
- BYTE hi_state; /* 0x19 Channel status */
- BYTE hi_prtcl; /* 0x1A Channel protocol (flow control) */
- BYTE hi_txon; /* 0x1B Transmit XON character */
- BYTE hi_txoff; /* 0x1C Transmit XOFF character */
- BYTE hi_rxon; /* 0x1D Receive XON character */
- BYTE hi_rxoff; /* 0x1E Receive XOFF character */
- BYTE close_prev; /* 0x1F INTERNAL channel previously closed flag */
- BYTE hi_break; /* 0x20 Break and error control */
- BYTE break_state; /* 0x21 INTERNAL copy of hi_break */
- BYTE hi_mask; /* 0x22 Mask for received data */
- BYTE mask; /* 0x23 INTERNAL copy of hi_mask */
- BYTE mod_type; /* 0x24 MTA/SXDC hardware module type */
- BYTE ccr_state; /* 0x25 INTERNAL MTA/SXDC state of CCR register */
- BYTE ip_mask; /* 0x26 Input handshake mask */
- BYTE hi_parallel; /* 0x27 Parallel port flag */
- BYTE par_error; /* 0x28 Error code for parallel loopback test */
- BYTE any_sent; /* 0x29 INTERNAL data sent flag */
- BYTE asic_txfifo_size; /* 0x2A INTERNAL SXDC transmit FIFO size */
- BYTE rfu1[2]; /* 0x2B Reserved */
- BYTE csr; /* 0x2D INTERNAL copy of hi_csr */
-#ifdef DOWNLOAD
- PCHAN nextp; /* 0x2E Offset from window base of next channel structure */
-#else
- WORD nextp; /* 0x2E Define as WORD if not compiling into download */
-#endif
- BYTE prtcl; /* 0x30 INTERNAL copy of hi_prtcl */
- BYTE mr1; /* 0x31 INTERNAL copy of hi_mr1 */
- BYTE mr2; /* 0x32 INTERNAL copy of hi_mr2 */
- BYTE hi_txbaud; /* 0x33 Extended transmit baud rate (SXDC only if((hi_csr&0x0F)==0x0F) */
- BYTE hi_rxbaud; /* 0x34 Extended receive baud rate (SXDC only if((hi_csr&0xF0)==0xF0) */
- BYTE txbreak_state; /* 0x35 INTERNAL MTA/SXDC transmit break state */
- BYTE txbaud; /* 0x36 INTERNAL copy of hi_txbaud */
- BYTE rxbaud; /* 0x37 INTERNAL copy of hi_rxbaud */
- WORD err_framing; /* 0x38 Count of receive framing errors */
- WORD err_parity; /* 0x3A Count of receive parity errors */
- WORD err_overrun; /* 0x3C Count of receive overrun errors */
- WORD err_overflow; /* 0x3E Count of receive buffer overflow errors */
- BYTE rfu2[TX_BUFF_OFFSET - 0x40]; /* 0x40 Reserved until hi_txbuf */
- BYTE hi_txbuf[BUFFER_SIZE]; /* 0x060 Transmit buffer */
- BYTE hi_rxbuf[BUFFER_SIZE]; /* 0x160 Receive buffer */
- BYTE rfu3[0x300 - 0x260]; /* 0x260 Reserved until 768 bytes (0x300) */
-
-} SXCHANNEL;
-
-/* SXCHANNEL.addr_uart definitions... */
-#define FASTPATH 0x1000 /* Set to indicate fast rx/tx processing (TA only) */
-
-/* SXCHANNEL.xc_status definitions... */
-#define X_TANY 0x0001 /* XON is any character (TA only) */
-#define X_TION 0x0001 /* Tx interrupts on (MTA only) */
-#define X_TXEN 0x0002 /* Tx XON/XOFF enabled (TA only) */
-#define X_RTSEN 0x0002 /* RTS FLOW enabled (MTA only) */
-#define X_TXRC 0x0004 /* XOFF received (TA only) */
-#define X_RTSLOW 0x0004 /* RTS dropped (MTA only) */
-#define X_RXEN 0x0008 /* Rx XON/XOFF enabled */
-#define X_ANYXO 0x0010 /* XOFF pending/sent or RTS dropped */
-#define X_RXSE 0x0020 /* Rx XOFF sent */
-#define X_NPEND 0x0040 /* Rx XON pending or XOFF pending */
-#define X_FPEND 0x0080 /* Rx XOFF pending */
-#define C_CRSE 0x0100 /* Carriage return sent (TA only) */
-#define C_TEMR 0x0100 /* Tx empty requested (MTA only) */
-#define C_TEMA 0x0200 /* Tx empty acked (MTA only) */
-#define C_ANYP 0x0200 /* Any protocol bar tx XON/XOFF (TA only) */
-#define C_EN 0x0400 /* Cooking enabled (on MTA means port is also || */
-#define C_HIGH 0x0800 /* Buffer previously hit high water */
-#define C_CTSEN 0x1000 /* CTS automatic flow-control enabled */
-#define C_DCDEN 0x2000 /* DCD/DTR checking enabled */
-#define C_BREAK 0x4000 /* Break detected */
-#define C_RTSEN 0x8000 /* RTS automatic flow control enabled (MTA only) */
-#define C_PARITY 0x8000 /* Parity checking enabled (TA only) */
-
-/* SXCHANNEL.hi_hstat definitions... */
-#define HS_IDLE_OPEN 0x00 /* Channel open state */
-#define HS_LOPEN 0x02 /* Local open command (no modem monitoring) */
-#define HS_MOPEN 0x04 /* Modem open command (wait for DCD signal) */
-#define HS_IDLE_MPEND 0x06 /* Waiting for DCD signal state */
-#define HS_CONFIG 0x08 /* Configuration command */
-#define HS_CLOSE 0x0A /* Close command */
-#define HS_START 0x0C /* Start transmit break command */
-#define HS_STOP 0x0E /* Stop transmit break command */
-#define HS_IDLE_CLOSED 0x10 /* Closed channel state */
-#define HS_IDLE_BREAK 0x12 /* Transmit break state */
-#define HS_FORCE_CLOSED 0x14 /* Force close command */
-#define HS_RESUME 0x16 /* Clear pending XOFF command */
-#define HS_WFLUSH 0x18 /* Flush transmit buffer command */
-#define HS_RFLUSH 0x1A /* Flush receive buffer command */
-#define HS_SUSPEND 0x1C /* Suspend output command (like XOFF received) */
-#define PARALLEL 0x1E /* Parallel port loopback test command (Diagnostics Only) */
-#define ENABLE_RX_INTS 0x20 /* Enable receive interrupts command (Diagnostics Only) */
-#define ENABLE_TX_INTS 0x22 /* Enable transmit interrupts command (Diagnostics Only) */
-#define ENABLE_MDM_INTS 0x24 /* Enable modem interrupts command (Diagnostics Only) */
-#define DISABLE_INTS 0x26 /* Disable interrupts command (Diagnostics Only) */
-
-/* SXCHANNEL.hi_mr1 definitions... */
-#define MR1_BITS 0x03 /* Data bits mask */
-#define MR1_5_BITS 0x00 /* 5 data bits */
-#define MR1_6_BITS 0x01 /* 6 data bits */
-#define MR1_7_BITS 0x02 /* 7 data bits */
-#define MR1_8_BITS 0x03 /* 8 data bits */
-#define MR1_PARITY 0x1C /* Parity mask */
-#define MR1_ODD 0x04 /* Odd parity */
-#define MR1_EVEN 0x00 /* Even parity */
-#define MR1_WITH 0x00 /* Parity enabled */
-#define MR1_FORCE 0x08 /* Force parity */
-#define MR1_NONE 0x10 /* No parity */
-#define MR1_NOPARITY MR1_NONE /* No parity */
-#define MR1_ODDPARITY (MR1_WITH|MR1_ODD) /* Odd parity */
-#define MR1_EVENPARITY (MR1_WITH|MR1_EVEN) /* Even parity */
-#define MR1_MARKPARITY (MR1_FORCE|MR1_ODD) /* Mark parity */
-#define MR1_SPACEPARITY (MR1_FORCE|MR1_EVEN) /* Space parity */
-#define MR1_RTS_RXFLOW 0x80 /* RTS receive flow control */
-
-/* SXCHANNEL.hi_mr2 definitions... */
-#define MR2_STOP 0x0F /* Stop bits mask */
-#define MR2_1_STOP 0x07 /* 1 stop bit */
-#define MR2_2_STOP 0x0F /* 2 stop bits */
-#define MR2_CTS_TXFLOW 0x10 /* CTS transmit flow control */
-#define MR2_RTS_TOGGLE 0x20 /* RTS toggle on transmit */
-#define MR2_NORMAL 0x00 /* Normal mode */
-#define MR2_AUTO 0x40 /* Auto-echo mode (TA only) */
-#define MR2_LOCAL 0x80 /* Local echo mode */
-#define MR2_REMOTE 0xC0 /* Remote echo mode (TA only) */
-
-/* SXCHANNEL.hi_csr definitions... */
-#define CSR_75 0x0 /* 75 baud */
-#define CSR_110 0x1 /* 110 baud (TA), 115200 (MTA/SXDC) */
-#define CSR_38400 0x2 /* 38400 baud */
-#define CSR_150 0x3 /* 150 baud */
-#define CSR_300 0x4 /* 300 baud */
-#define CSR_600 0x5 /* 600 baud */
-#define CSR_1200 0x6 /* 1200 baud */
-#define CSR_2000 0x7 /* 2000 baud */
-#define CSR_2400 0x8 /* 2400 baud */
-#define CSR_4800 0x9 /* 4800 baud */
-#define CSR_1800 0xA /* 1800 baud */
-#define CSR_9600 0xB /* 9600 baud */
-#define CSR_19200 0xC /* 19200 baud */
-#define CSR_57600 0xD /* 57600 baud */
-#define CSR_EXTBAUD 0xF /* Extended baud rate (hi_txbaud/hi_rxbaud) */
-
-/* SXCHANNEL.hi_op definitions... */
-#define OP_RTS 0x01 /* RTS modem output signal */
-#define OP_DTR 0x02 /* DTR modem output signal */
-
-/* SXCHANNEL.hi_ip definitions... */
-#define IP_CTS 0x02 /* CTS modem input signal */
-#define IP_DCD 0x04 /* DCD modem input signal */
-#define IP_DSR 0x20 /* DTR modem input signal */
-#define IP_RI 0x40 /* RI modem input signal */
-
-/* SXCHANNEL.hi_state definitions... */
-#define ST_BREAK 0x01 /* Break received (clear with config) */
-#define ST_DCD 0x02 /* DCD signal changed state */
-
-/* SXCHANNEL.hi_prtcl definitions... */
-#define SP_TANY 0x01 /* Transmit XON/XANY (if SP_TXEN enabled) */
-#define SP_TXEN 0x02 /* Transmit XON/XOFF flow control */
-#define SP_CEN 0x04 /* Cooking enabled */
-#define SP_RXEN 0x08 /* Rx XON/XOFF enabled */
-#define SP_DCEN 0x20 /* DCD / DTR check */
-#define SP_DTR_RXFLOW 0x40 /* DTR receive flow control */
-#define SP_PAEN 0x80 /* Parity checking enabled */
-
-/* SXCHANNEL.hi_break definitions... */
-#define BR_IGN 0x01 /* Ignore any received breaks */
-#define BR_INT 0x02 /* Interrupt on received break */
-#define BR_PARMRK 0x04 /* Enable parmrk parity error processing */
-#define BR_PARIGN 0x08 /* Ignore chars with parity errors */
-#define BR_ERRINT 0x80 /* Treat parity/framing/overrun errors as exceptions */
-
-/* SXCHANNEL.par_error definitions.. */
-#define DIAG_IRQ_RX 0x01 /* Indicate serial receive interrupt (diags only) */
-#define DIAG_IRQ_TX 0x02 /* Indicate serial transmit interrupt (diags only) */
-#define DIAG_IRQ_MD 0x04 /* Indicate serial modem interrupt (diags only) */
-
-/* SXCHANNEL.hi_txbaud/hi_rxbaud definitions... (SXDC only) */
-#define BAUD_75 0x00 /* 75 baud */
-#define BAUD_115200 0x01 /* 115200 baud */
-#define BAUD_38400 0x02 /* 38400 baud */
-#define BAUD_150 0x03 /* 150 baud */
-#define BAUD_300 0x04 /* 300 baud */
-#define BAUD_600 0x05 /* 600 baud */
-#define BAUD_1200 0x06 /* 1200 baud */
-#define BAUD_2000 0x07 /* 2000 baud */
-#define BAUD_2400 0x08 /* 2400 baud */
-#define BAUD_4800 0x09 /* 4800 baud */
-#define BAUD_1800 0x0A /* 1800 baud */
-#define BAUD_9600 0x0B /* 9600 baud */
-#define BAUD_19200 0x0C /* 19200 baud */
-#define BAUD_57600 0x0D /* 57600 baud */
-#define BAUD_230400 0x0E /* 230400 baud */
-#define BAUD_460800 0x0F /* 460800 baud */
-#define BAUD_921600 0x10 /* 921600 baud */
-#define BAUD_50 0x11 /* 50 baud */
-#define BAUD_110 0x12 /* 110 baud */
-#define BAUD_134_5 0x13 /* 134.5 baud */
-#define BAUD_200 0x14 /* 200 baud */
-#define BAUD_7200 0x15 /* 7200 baud */
-#define BAUD_56000 0x16 /* 56000 baud */
-#define BAUD_64000 0x17 /* 64000 baud */
-#define BAUD_76800 0x18 /* 76800 baud */
-#define BAUD_128000 0x19 /* 128000 baud */
-#define BAUD_150000 0x1A /* 150000 baud */
-#define BAUD_14400 0x1B /* 14400 baud */
-#define BAUD_256000 0x1C /* 256000 baud */
-#define BAUD_28800 0x1D /* 28800 baud */
-
-/* SXCHANNEL.txbreak_state definiions... */
-#define TXBREAK_OFF 0 /* Not sending break */
-#define TXBREAK_START 1 /* Begin sending break */
-#define TXBREAK_START1 2 /* Begin sending break, part 1 */
-#define TXBREAK_ON 3 /* Sending break */
-#define TXBREAK_STOP 4 /* Stop sending break */
-#define TXBREAK_STOP1 5 /* Stop sending break, part 1 */
-
-#endif /* _sxwindow_h */
-
-/* End of SXWINDOW.H */
-
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
deleted file mode 100644
index 3a6824f12be..00000000000
--- a/drivers/char/synclink.c
+++ /dev/null
@@ -1,8120 +0,0 @@
-/*
- * linux/drivers/char/synclink.c
- *
- * $Id: synclink.c,v 4.38 2005/11/07 16:30:34 paulkf Exp $
- *
- * Device driver for Microgate SyncLink ISA and PCI
- * high speed multiprotocol serial adapters.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * Derived from serial.c written by Theodore Ts'o and Linus Torvalds
- *
- * Original release 01/11/99
- *
- * This code is released under the GNU General Public License (GPL)
- *
- * This driver is primarily intended for use in synchronous
- * HDLC mode. Asynchronous mode is also provided.
- *
- * When operating in synchronous mode, each call to mgsl_write()
- * contains exactly one complete HDLC frame. Calling mgsl_put_char
- * will start assembling an HDLC frame that will not be sent until
- * mgsl_flush_chars or mgsl_write is called.
- *
- * Synchronous receive data is reported as complete frames. To accomplish
- * this, the TTY flip buffer is bypassed (too small to hold largest
- * frame and may fragment frames) and the line discipline
- * receive entry point is called directly.
- *
- * This driver has been tested with a slightly modified ppp.c driver
- * for synchronous PPP.
- *
- * 2000/02/16
- * Added interface for syncppp.c driver (an alternate synchronous PPP
- * implementation that also supports Cisco HDLC). Each device instance
- * registers as a tty device AND a network device (if dosyncppp option
- * is set for the device). The functionality is determined by which
- * device interface is opened.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#if defined(__i386__)
-# define BREAKPOINT() asm(" int $3");
-#else
-# define BREAKPOINT() { }
-#endif
-
-#define MAX_ISA_DEVICES 10
-#define MAX_PCI_DEVICES 10
-#define MAX_TOTAL_DEVICES 20
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/ioctl.h>
-#include <linux/synclink.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <linux/bitops.h>
-#include <asm/types.h>
-#include <linux/termios.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/dma-mapping.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINK_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-#define GET_USER(error,value,addr) error = get_user(value,addr)
-#define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0
-#define PUT_USER(error,value,addr) error = put_user(value,addr)
-#define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0
-
-#include <asm/uaccess.h>
-
-#define RCLRVALUE 0xffff
-
-static MGSL_PARAMS default_params = {
- MGSL_MODE_HDLC, /* unsigned long mode */
- 0, /* unsigned char loopback; */
- HDLC_FLAG_UNDERRUN_ABORT15, /* unsigned short flags; */
- HDLC_ENCODING_NRZI_SPACE, /* unsigned char encoding; */
- 0, /* unsigned long clock_speed; */
- 0xff, /* unsigned char addr_filter; */
- HDLC_CRC_16_CCITT, /* unsigned short crc_type; */
- HDLC_PREAMBLE_LENGTH_8BITS, /* unsigned char preamble_length; */
- HDLC_PREAMBLE_PATTERN_NONE, /* unsigned char preamble; */
- 9600, /* unsigned long data_rate; */
- 8, /* unsigned char data_bits; */
- 1, /* unsigned char stop_bits; */
- ASYNC_PARITY_NONE /* unsigned char parity; */
-};
-
-#define SHARED_MEM_ADDRESS_SIZE 0x40000
-#define BUFFERLISTSIZE 4096
-#define DMABUFFERSIZE 4096
-#define MAXRXFRAMES 7
-
-typedef struct _DMABUFFERENTRY
-{
- u32 phys_addr; /* 32-bit flat physical address of data buffer */
- volatile u16 count; /* buffer size/data count */
- volatile u16 status; /* Control/status field */
- volatile u16 rcc; /* character count field */
- u16 reserved; /* padding required by 16C32 */
- u32 link; /* 32-bit flat link to next buffer entry */
- char *virt_addr; /* virtual address of data buffer */
- u32 phys_entry; /* physical address of this buffer entry */
- dma_addr_t dma_addr;
-} DMABUFFERENTRY, *DMAPBUFFERENTRY;
-
-/* The queue of BH actions to be performed */
-
-#define BH_RECEIVE 1
-#define BH_TRANSMIT 2
-#define BH_STATUS 4
-
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-struct _input_signal_events {
- int ri_up;
- int ri_down;
- int dsr_up;
- int dsr_down;
- int dcd_up;
- int dcd_down;
- int cts_up;
- int cts_down;
-};
-
-/* transmit holding buffer definitions*/
-#define MAX_TX_HOLDING_BUFFERS 5
-struct tx_holding_buffer {
- int buffer_size;
- unsigned char * buffer;
-};
-
-
-/*
- * Device instance data structure
- */
-
-struct mgsl_struct {
- int magic;
- struct tty_port port;
- int line;
- int hw_version;
-
- struct mgsl_icount icount;
-
- int timeout;
- int x_char; /* xon/xoff character */
- u16 read_status_mask;
- u16 ignore_status_mask;
- unsigned char *xmit_buf;
- int xmit_head;
- int xmit_tail;
- int xmit_cnt;
-
- wait_queue_head_t status_event_wait_q;
- wait_queue_head_t event_wait_q;
- struct timer_list tx_timer; /* HDLC transmit timeout timer */
- struct mgsl_struct *next_device; /* device list link */
-
- spinlock_t irq_spinlock; /* spinlock for synchronizing with ISR */
- struct work_struct task; /* task structure for scheduling bh */
-
- u32 EventMask; /* event trigger mask */
- u32 RecordedEvents; /* pending events */
-
- u32 max_frame_size; /* as set by device config */
-
- u32 pending_bh;
-
- bool bh_running; /* Protection from multiple */
- int isr_overflow;
- bool bh_requested;
-
- int dcd_chkcount; /* check counts to prevent */
- int cts_chkcount; /* too many IRQs if a signal */
- int dsr_chkcount; /* is floating */
- int ri_chkcount;
-
- char *buffer_list; /* virtual address of Rx & Tx buffer lists */
- u32 buffer_list_phys;
- dma_addr_t buffer_list_dma_addr;
-
- unsigned int rx_buffer_count; /* count of total allocated Rx buffers */
- DMABUFFERENTRY *rx_buffer_list; /* list of receive buffer entries */
- unsigned int current_rx_buffer;
-
- int num_tx_dma_buffers; /* number of tx dma frames required */
- int tx_dma_buffers_used;
- unsigned int tx_buffer_count; /* count of total allocated Tx buffers */
- DMABUFFERENTRY *tx_buffer_list; /* list of transmit buffer entries */
- int start_tx_dma_buffer; /* tx dma buffer to start tx dma operation */
- int current_tx_buffer; /* next tx dma buffer to be loaded */
-
- unsigned char *intermediate_rxbuffer;
-
- int num_tx_holding_buffers; /* number of tx holding buffer allocated */
- int get_tx_holding_index; /* next tx holding buffer for adapter to load */
- int put_tx_holding_index; /* next tx holding buffer to store user request */
- int tx_holding_count; /* number of tx holding buffers waiting */
- struct tx_holding_buffer tx_holding_buffers[MAX_TX_HOLDING_BUFFERS];
-
- bool rx_enabled;
- bool rx_overflow;
- bool rx_rcc_underrun;
-
- bool tx_enabled;
- bool tx_active;
- u32 idle_mode;
-
- u16 cmr_value;
- u16 tcsr_value;
-
- char device_name[25]; /* device instance name */
-
- unsigned int bus_type; /* expansion bus type (ISA,EISA,PCI) */
- unsigned char bus; /* expansion bus number (zero based) */
- unsigned char function; /* PCI device number */
-
- unsigned int io_base; /* base I/O address of adapter */
- unsigned int io_addr_size; /* size of the I/O address range */
- bool io_addr_requested; /* true if I/O address requested */
-
- unsigned int irq_level; /* interrupt level */
- unsigned long irq_flags;
- bool irq_requested; /* true if IRQ requested */
-
- unsigned int dma_level; /* DMA channel */
- bool dma_requested; /* true if dma channel requested */
-
- u16 mbre_bit;
- u16 loopback_bits;
- u16 usc_idle_mode;
-
- MGSL_PARAMS params; /* communications parameters */
-
- unsigned char serial_signals; /* current serial signal states */
-
- bool irq_occurred; /* for diagnostics use */
- unsigned int init_error; /* Initialization startup error (DIAGS) */
- int fDiagnosticsmode; /* Driver in Diagnostic mode? (DIAGS) */
-
- u32 last_mem_alloc;
- unsigned char* memory_base; /* shared memory address (PCI only) */
- u32 phys_memory_base;
- bool shared_mem_requested;
-
- unsigned char* lcr_base; /* local config registers (PCI only) */
- u32 phys_lcr_base;
- u32 lcr_offset;
- bool lcr_mem_requested;
-
- u32 misc_ctrl_value;
- char flag_buf[MAX_ASYNC_BUFFER_SIZE];
- char char_buf[MAX_ASYNC_BUFFER_SIZE];
- bool drop_rts_on_tx_done;
-
- bool loopmode_insert_requested;
- bool loopmode_send_done_requested;
-
- struct _input_signal_events input_signal_events;
-
- /* generic HDLC device parts */
- int netcount;
- spinlock_t netlock;
-
-#if SYNCLINK_GENERIC_HDLC
- struct net_device *netdev;
-#endif
-};
-
-#define MGSL_MAGIC 0x5401
-
-/*
- * The size of the serial xmit buffer is 1 page, or 4096 bytes
- */
-#ifndef SERIAL_XMIT_SIZE
-#define SERIAL_XMIT_SIZE 4096
-#endif
-
-/*
- * These macros define the offsets used in calculating the
- * I/O address of the specified USC registers.
- */
-
-
-#define DCPIN 2 /* Bit 1 of I/O address */
-#define SDPIN 4 /* Bit 2 of I/O address */
-
-#define DCAR 0 /* DMA command/address register */
-#define CCAR SDPIN /* channel command/address register */
-#define DATAREG DCPIN + SDPIN /* serial data register */
-#define MSBONLY 0x41
-#define LSBONLY 0x40
-
-/*
- * These macros define the register address (ordinal number)
- * used for writing address/value pairs to the USC.
- */
-
-#define CMR 0x02 /* Channel mode Register */
-#define CCSR 0x04 /* Channel Command/status Register */
-#define CCR 0x06 /* Channel Control Register */
-#define PSR 0x08 /* Port status Register */
-#define PCR 0x0a /* Port Control Register */
-#define TMDR 0x0c /* Test mode Data Register */
-#define TMCR 0x0e /* Test mode Control Register */
-#define CMCR 0x10 /* Clock mode Control Register */
-#define HCR 0x12 /* Hardware Configuration Register */
-#define IVR 0x14 /* Interrupt Vector Register */
-#define IOCR 0x16 /* Input/Output Control Register */
-#define ICR 0x18 /* Interrupt Control Register */
-#define DCCR 0x1a /* Daisy Chain Control Register */
-#define MISR 0x1c /* Misc Interrupt status Register */
-#define SICR 0x1e /* status Interrupt Control Register */
-#define RDR 0x20 /* Receive Data Register */
-#define RMR 0x22 /* Receive mode Register */
-#define RCSR 0x24 /* Receive Command/status Register */
-#define RICR 0x26 /* Receive Interrupt Control Register */
-#define RSR 0x28 /* Receive Sync Register */
-#define RCLR 0x2a /* Receive count Limit Register */
-#define RCCR 0x2c /* Receive Character count Register */
-#define TC0R 0x2e /* Time Constant 0 Register */
-#define TDR 0x30 /* Transmit Data Register */
-#define TMR 0x32 /* Transmit mode Register */
-#define TCSR 0x34 /* Transmit Command/status Register */
-#define TICR 0x36 /* Transmit Interrupt Control Register */
-#define TSR 0x38 /* Transmit Sync Register */
-#define TCLR 0x3a /* Transmit count Limit Register */
-#define TCCR 0x3c /* Transmit Character count Register */
-#define TC1R 0x3e /* Time Constant 1 Register */
-
-
-/*
- * MACRO DEFINITIONS FOR DMA REGISTERS
- */
-
-#define DCR 0x06 /* DMA Control Register (shared) */
-#define DACR 0x08 /* DMA Array count Register (shared) */
-#define BDCR 0x12 /* Burst/Dwell Control Register (shared) */
-#define DIVR 0x14 /* DMA Interrupt Vector Register (shared) */
-#define DICR 0x18 /* DMA Interrupt Control Register (shared) */
-#define CDIR 0x1a /* Clear DMA Interrupt Register (shared) */
-#define SDIR 0x1c /* Set DMA Interrupt Register (shared) */
-
-#define TDMR 0x02 /* Transmit DMA mode Register */
-#define TDIAR 0x1e /* Transmit DMA Interrupt Arm Register */
-#define TBCR 0x2a /* Transmit Byte count Register */
-#define TARL 0x2c /* Transmit Address Register (low) */
-#define TARU 0x2e /* Transmit Address Register (high) */
-#define NTBCR 0x3a /* Next Transmit Byte count Register */
-#define NTARL 0x3c /* Next Transmit Address Register (low) */
-#define NTARU 0x3e /* Next Transmit Address Register (high) */
-
-#define RDMR 0x82 /* Receive DMA mode Register (non-shared) */
-#define RDIAR 0x9e /* Receive DMA Interrupt Arm Register */
-#define RBCR 0xaa /* Receive Byte count Register */
-#define RARL 0xac /* Receive Address Register (low) */
-#define RARU 0xae /* Receive Address Register (high) */
-#define NRBCR 0xba /* Next Receive Byte count Register */
-#define NRARL 0xbc /* Next Receive Address Register (low) */
-#define NRARU 0xbe /* Next Receive Address Register (high) */
-
-
-/*
- * MACRO DEFINITIONS FOR MODEM STATUS BITS
- */
-
-#define MODEMSTATUS_DTR 0x80
-#define MODEMSTATUS_DSR 0x40
-#define MODEMSTATUS_RTS 0x20
-#define MODEMSTATUS_CTS 0x10
-#define MODEMSTATUS_RI 0x04
-#define MODEMSTATUS_DCD 0x01
-
-
-/*
- * Channel Command/Address Register (CCAR) Command Codes
- */
-
-#define RTCmd_Null 0x0000
-#define RTCmd_ResetHighestIus 0x1000
-#define RTCmd_TriggerChannelLoadDma 0x2000
-#define RTCmd_TriggerRxDma 0x2800
-#define RTCmd_TriggerTxDma 0x3000
-#define RTCmd_TriggerRxAndTxDma 0x3800
-#define RTCmd_PurgeRxFifo 0x4800
-#define RTCmd_PurgeTxFifo 0x5000
-#define RTCmd_PurgeRxAndTxFifo 0x5800
-#define RTCmd_LoadRcc 0x6800
-#define RTCmd_LoadTcc 0x7000
-#define RTCmd_LoadRccAndTcc 0x7800
-#define RTCmd_LoadTC0 0x8800
-#define RTCmd_LoadTC1 0x9000
-#define RTCmd_LoadTC0AndTC1 0x9800
-#define RTCmd_SerialDataLSBFirst 0xa000
-#define RTCmd_SerialDataMSBFirst 0xa800
-#define RTCmd_SelectBigEndian 0xb000
-#define RTCmd_SelectLittleEndian 0xb800
-
-
-/*
- * DMA Command/Address Register (DCAR) Command Codes
- */
-
-#define DmaCmd_Null 0x0000
-#define DmaCmd_ResetTxChannel 0x1000
-#define DmaCmd_ResetRxChannel 0x1200
-#define DmaCmd_StartTxChannel 0x2000
-#define DmaCmd_StartRxChannel 0x2200
-#define DmaCmd_ContinueTxChannel 0x3000
-#define DmaCmd_ContinueRxChannel 0x3200
-#define DmaCmd_PauseTxChannel 0x4000
-#define DmaCmd_PauseRxChannel 0x4200
-#define DmaCmd_AbortTxChannel 0x5000
-#define DmaCmd_AbortRxChannel 0x5200
-#define DmaCmd_InitTxChannel 0x7000
-#define DmaCmd_InitRxChannel 0x7200
-#define DmaCmd_ResetHighestDmaIus 0x8000
-#define DmaCmd_ResetAllChannels 0x9000
-#define DmaCmd_StartAllChannels 0xa000
-#define DmaCmd_ContinueAllChannels 0xb000
-#define DmaCmd_PauseAllChannels 0xc000
-#define DmaCmd_AbortAllChannels 0xd000
-#define DmaCmd_InitAllChannels 0xf000
-
-#define TCmd_Null 0x0000
-#define TCmd_ClearTxCRC 0x2000
-#define TCmd_SelectTicrTtsaData 0x4000
-#define TCmd_SelectTicrTxFifostatus 0x5000
-#define TCmd_SelectTicrIntLevel 0x6000
-#define TCmd_SelectTicrdma_level 0x7000
-#define TCmd_SendFrame 0x8000
-#define TCmd_SendAbort 0x9000
-#define TCmd_EnableDleInsertion 0xc000
-#define TCmd_DisableDleInsertion 0xd000
-#define TCmd_ClearEofEom 0xe000
-#define TCmd_SetEofEom 0xf000
-
-#define RCmd_Null 0x0000
-#define RCmd_ClearRxCRC 0x2000
-#define RCmd_EnterHuntmode 0x3000
-#define RCmd_SelectRicrRtsaData 0x4000
-#define RCmd_SelectRicrRxFifostatus 0x5000
-#define RCmd_SelectRicrIntLevel 0x6000
-#define RCmd_SelectRicrdma_level 0x7000
-
-/*
- * Bits for enabling and disabling IRQs in Interrupt Control Register (ICR)
- */
-
-#define RECEIVE_STATUS BIT5
-#define RECEIVE_DATA BIT4
-#define TRANSMIT_STATUS BIT3
-#define TRANSMIT_DATA BIT2
-#define IO_PIN BIT1
-#define MISC BIT0
-
-
-/*
- * Receive status Bits in Receive Command/status Register RCSR
- */
-
-#define RXSTATUS_SHORT_FRAME BIT8
-#define RXSTATUS_CODE_VIOLATION BIT8
-#define RXSTATUS_EXITED_HUNT BIT7
-#define RXSTATUS_IDLE_RECEIVED BIT6
-#define RXSTATUS_BREAK_RECEIVED BIT5
-#define RXSTATUS_ABORT_RECEIVED BIT5
-#define RXSTATUS_RXBOUND BIT4
-#define RXSTATUS_CRC_ERROR BIT3
-#define RXSTATUS_FRAMING_ERROR BIT3
-#define RXSTATUS_ABORT BIT2
-#define RXSTATUS_PARITY_ERROR BIT2
-#define RXSTATUS_OVERRUN BIT1
-#define RXSTATUS_DATA_AVAILABLE BIT0
-#define RXSTATUS_ALL 0x01f6
-#define usc_UnlatchRxstatusBits(a,b) usc_OutReg( (a), RCSR, (u16)((b) & RXSTATUS_ALL) )
-
-/*
- * Values for setting transmit idle mode in
- * Transmit Control/status Register (TCSR)
- */
-#define IDLEMODE_FLAGS 0x0000
-#define IDLEMODE_ALT_ONE_ZERO 0x0100
-#define IDLEMODE_ZERO 0x0200
-#define IDLEMODE_ONE 0x0300
-#define IDLEMODE_ALT_MARK_SPACE 0x0500
-#define IDLEMODE_SPACE 0x0600
-#define IDLEMODE_MARK 0x0700
-#define IDLEMODE_MASK 0x0700
-
-/*
- * IUSC revision identifiers
- */
-#define IUSC_SL1660 0x4d44
-#define IUSC_PRE_SL1660 0x4553
-
-/*
- * Transmit status Bits in Transmit Command/status Register (TCSR)
- */
-
-#define TCSR_PRESERVE 0x0F00
-
-#define TCSR_UNDERWAIT BIT11
-#define TXSTATUS_PREAMBLE_SENT BIT7
-#define TXSTATUS_IDLE_SENT BIT6
-#define TXSTATUS_ABORT_SENT BIT5
-#define TXSTATUS_EOF_SENT BIT4
-#define TXSTATUS_EOM_SENT BIT4
-#define TXSTATUS_CRC_SENT BIT3
-#define TXSTATUS_ALL_SENT BIT2
-#define TXSTATUS_UNDERRUN BIT1
-#define TXSTATUS_FIFO_EMPTY BIT0
-#define TXSTATUS_ALL 0x00fa
-#define usc_UnlatchTxstatusBits(a,b) usc_OutReg( (a), TCSR, (u16)((a)->tcsr_value + ((b) & 0x00FF)) )
-
-
-#define MISCSTATUS_RXC_LATCHED BIT15
-#define MISCSTATUS_RXC BIT14
-#define MISCSTATUS_TXC_LATCHED BIT13
-#define MISCSTATUS_TXC BIT12
-#define MISCSTATUS_RI_LATCHED BIT11
-#define MISCSTATUS_RI BIT10
-#define MISCSTATUS_DSR_LATCHED BIT9
-#define MISCSTATUS_DSR BIT8
-#define MISCSTATUS_DCD_LATCHED BIT7
-#define MISCSTATUS_DCD BIT6
-#define MISCSTATUS_CTS_LATCHED BIT5
-#define MISCSTATUS_CTS BIT4
-#define MISCSTATUS_RCC_UNDERRUN BIT3
-#define MISCSTATUS_DPLL_NO_SYNC BIT2
-#define MISCSTATUS_BRG1_ZERO BIT1
-#define MISCSTATUS_BRG0_ZERO BIT0
-
-#define usc_UnlatchIostatusBits(a,b) usc_OutReg((a),MISR,(u16)((b) & 0xaaa0))
-#define usc_UnlatchMiscstatusBits(a,b) usc_OutReg((a),MISR,(u16)((b) & 0x000f))
-
-#define SICR_RXC_ACTIVE BIT15
-#define SICR_RXC_INACTIVE BIT14
-#define SICR_RXC (BIT15+BIT14)
-#define SICR_TXC_ACTIVE BIT13
-#define SICR_TXC_INACTIVE BIT12
-#define SICR_TXC (BIT13+BIT12)
-#define SICR_RI_ACTIVE BIT11
-#define SICR_RI_INACTIVE BIT10
-#define SICR_RI (BIT11+BIT10)
-#define SICR_DSR_ACTIVE BIT9
-#define SICR_DSR_INACTIVE BIT8
-#define SICR_DSR (BIT9+BIT8)
-#define SICR_DCD_ACTIVE BIT7
-#define SICR_DCD_INACTIVE BIT6
-#define SICR_DCD (BIT7+BIT6)
-#define SICR_CTS_ACTIVE BIT5
-#define SICR_CTS_INACTIVE BIT4
-#define SICR_CTS (BIT5+BIT4)
-#define SICR_RCC_UNDERFLOW BIT3
-#define SICR_DPLL_NO_SYNC BIT2
-#define SICR_BRG1_ZERO BIT1
-#define SICR_BRG0_ZERO BIT0
-
-void usc_DisableMasterIrqBit( struct mgsl_struct *info );
-void usc_EnableMasterIrqBit( struct mgsl_struct *info );
-void usc_EnableInterrupts( struct mgsl_struct *info, u16 IrqMask );
-void usc_DisableInterrupts( struct mgsl_struct *info, u16 IrqMask );
-void usc_ClearIrqPendingBits( struct mgsl_struct *info, u16 IrqMask );
-
-#define usc_EnableInterrupts( a, b ) \
- usc_OutReg( (a), ICR, (u16)((usc_InReg((a),ICR) & 0xff00) + 0xc0 + (b)) )
-
-#define usc_DisableInterrupts( a, b ) \
- usc_OutReg( (a), ICR, (u16)((usc_InReg((a),ICR) & 0xff00) + 0x80 + (b)) )
-
-#define usc_EnableMasterIrqBit(a) \
- usc_OutReg( (a), ICR, (u16)((usc_InReg((a),ICR) & 0x0f00) + 0xb000) )
-
-#define usc_DisableMasterIrqBit(a) \
- usc_OutReg( (a), ICR, (u16)(usc_InReg((a),ICR) & 0x7f00) )
-
-#define usc_ClearIrqPendingBits( a, b ) usc_OutReg( (a), DCCR, 0x40 + (b) )
-
-/*
- * Transmit status Bits in Transmit Control status Register (TCSR)
- * and Transmit Interrupt Control Register (TICR) (except BIT2, BIT0)
- */
-
-#define TXSTATUS_PREAMBLE_SENT BIT7
-#define TXSTATUS_IDLE_SENT BIT6
-#define TXSTATUS_ABORT_SENT BIT5
-#define TXSTATUS_EOF BIT4
-#define TXSTATUS_CRC_SENT BIT3
-#define TXSTATUS_ALL_SENT BIT2
-#define TXSTATUS_UNDERRUN BIT1
-#define TXSTATUS_FIFO_EMPTY BIT0
-
-#define DICR_MASTER BIT15
-#define DICR_TRANSMIT BIT0
-#define DICR_RECEIVE BIT1
-
-#define usc_EnableDmaInterrupts(a,b) \
- usc_OutDmaReg( (a), DICR, (u16)(usc_InDmaReg((a),DICR) | (b)) )
-
-#define usc_DisableDmaInterrupts(a,b) \
- usc_OutDmaReg( (a), DICR, (u16)(usc_InDmaReg((a),DICR) & ~(b)) )
-
-#define usc_EnableStatusIrqs(a,b) \
- usc_OutReg( (a), SICR, (u16)(usc_InReg((a),SICR) | (b)) )
-
-#define usc_DisablestatusIrqs(a,b) \
- usc_OutReg( (a), SICR, (u16)(usc_InReg((a),SICR) & ~(b)) )
-
-/* Transmit status Bits in Transmit Control status Register (TCSR) */
-/* and Transmit Interrupt Control Register (TICR) (except BIT2, BIT0) */
-
-
-#define DISABLE_UNCONDITIONAL 0
-#define DISABLE_END_OF_FRAME 1
-#define ENABLE_UNCONDITIONAL 2
-#define ENABLE_AUTO_CTS 3
-#define ENABLE_AUTO_DCD 3
-#define usc_EnableTransmitter(a,b) \
- usc_OutReg( (a), TMR, (u16)((usc_InReg((a),TMR) & 0xfffc) | (b)) )
-#define usc_EnableReceiver(a,b) \
- usc_OutReg( (a), RMR, (u16)((usc_InReg((a),RMR) & 0xfffc) | (b)) )
-
-static u16 usc_InDmaReg( struct mgsl_struct *info, u16 Port );
-static void usc_OutDmaReg( struct mgsl_struct *info, u16 Port, u16 Value );
-static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd );
-
-static u16 usc_InReg( struct mgsl_struct *info, u16 Port );
-static void usc_OutReg( struct mgsl_struct *info, u16 Port, u16 Value );
-static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd );
-void usc_RCmd( struct mgsl_struct *info, u16 Cmd );
-void usc_TCmd( struct mgsl_struct *info, u16 Cmd );
-
-#define usc_TCmd(a,b) usc_OutReg((a), TCSR, (u16)((a)->tcsr_value + (b)))
-#define usc_RCmd(a,b) usc_OutReg((a), RCSR, (b))
-
-#define usc_SetTransmitSyncChars(a,s0,s1) usc_OutReg((a), TSR, (u16)(((u16)s0<<8)|(u16)s1))
-
-static void usc_process_rxoverrun_sync( struct mgsl_struct *info );
-static void usc_start_receiver( struct mgsl_struct *info );
-static void usc_stop_receiver( struct mgsl_struct *info );
-
-static void usc_start_transmitter( struct mgsl_struct *info );
-static void usc_stop_transmitter( struct mgsl_struct *info );
-static void usc_set_txidle( struct mgsl_struct *info );
-static void usc_load_txfifo( struct mgsl_struct *info );
-
-static void usc_enable_aux_clock( struct mgsl_struct *info, u32 DataRate );
-static void usc_enable_loopback( struct mgsl_struct *info, int enable );
-
-static void usc_get_serial_signals( struct mgsl_struct *info );
-static void usc_set_serial_signals( struct mgsl_struct *info );
-
-static void usc_reset( struct mgsl_struct *info );
-
-static void usc_set_sync_mode( struct mgsl_struct *info );
-static void usc_set_sdlc_mode( struct mgsl_struct *info );
-static void usc_set_async_mode( struct mgsl_struct *info );
-static void usc_enable_async_clock( struct mgsl_struct *info, u32 DataRate );
-
-static void usc_loopback_frame( struct mgsl_struct *info );
-
-static void mgsl_tx_timeout(unsigned long context);
-
-
-static void usc_loopmode_cancel_transmit( struct mgsl_struct * info );
-static void usc_loopmode_insert_request( struct mgsl_struct * info );
-static int usc_loopmode_active( struct mgsl_struct * info);
-static void usc_loopmode_send_done( struct mgsl_struct * info );
-
-static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg);
-
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(struct mgsl_struct *info);
-static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size);
-static int hdlcdev_init(struct mgsl_struct *info);
-static void hdlcdev_exit(struct mgsl_struct *info);
-#endif
-
-/*
- * Defines a BUS descriptor value for the PCI adapter
- * local bus address ranges.
- */
-
-#define BUS_DESCRIPTOR( WrHold, WrDly, RdDly, Nwdd, Nwad, Nxda, Nrdd, Nrad ) \
-(0x00400020 + \
-((WrHold) << 30) + \
-((WrDly) << 28) + \
-((RdDly) << 26) + \
-((Nwdd) << 20) + \
-((Nwad) << 15) + \
-((Nxda) << 13) + \
-((Nrdd) << 11) + \
-((Nrad) << 6) )
-
-static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit);
-
-/*
- * Adapter diagnostic routines
- */
-static bool mgsl_register_test( struct mgsl_struct *info );
-static bool mgsl_irq_test( struct mgsl_struct *info );
-static bool mgsl_dma_test( struct mgsl_struct *info );
-static bool mgsl_memory_test( struct mgsl_struct *info );
-static int mgsl_adapter_test( struct mgsl_struct *info );
-
-/*
- * device and resource management routines
- */
-static int mgsl_claim_resources(struct mgsl_struct *info);
-static void mgsl_release_resources(struct mgsl_struct *info);
-static void mgsl_add_device(struct mgsl_struct *info);
-static struct mgsl_struct* mgsl_allocate_device(void);
-
-/*
- * DMA buffer manupulation functions.
- */
-static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex );
-static bool mgsl_get_rx_frame( struct mgsl_struct *info );
-static bool mgsl_get_raw_rx_frame( struct mgsl_struct *info );
-static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info );
-static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info );
-static int num_free_tx_dma_buffers(struct mgsl_struct *info);
-static void mgsl_load_tx_dma_buffer( struct mgsl_struct *info, const char *Buffer, unsigned int BufferSize);
-static void mgsl_load_pci_memory(char* TargetPtr, const char* SourcePtr, unsigned short count);
-
-/*
- * DMA and Shared Memory buffer allocation and formatting
- */
-static int mgsl_allocate_dma_buffers(struct mgsl_struct *info);
-static void mgsl_free_dma_buffers(struct mgsl_struct *info);
-static int mgsl_alloc_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
-static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffercount);
-static int mgsl_alloc_buffer_list_memory(struct mgsl_struct *info);
-static void mgsl_free_buffer_list_memory(struct mgsl_struct *info);
-static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info);
-static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info);
-static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info);
-static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info);
-static bool load_next_tx_holding_buffer(struct mgsl_struct *info);
-static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize);
-
-/*
- * Bottom half interrupt handlers
- */
-static void mgsl_bh_handler(struct work_struct *work);
-static void mgsl_bh_receive(struct mgsl_struct *info);
-static void mgsl_bh_transmit(struct mgsl_struct *info);
-static void mgsl_bh_status(struct mgsl_struct *info);
-
-/*
- * Interrupt handler routines and dispatch table.
- */
-static void mgsl_isr_null( struct mgsl_struct *info );
-static void mgsl_isr_transmit_data( struct mgsl_struct *info );
-static void mgsl_isr_receive_data( struct mgsl_struct *info );
-static void mgsl_isr_receive_status( struct mgsl_struct *info );
-static void mgsl_isr_transmit_status( struct mgsl_struct *info );
-static void mgsl_isr_io_pin( struct mgsl_struct *info );
-static void mgsl_isr_misc( struct mgsl_struct *info );
-static void mgsl_isr_receive_dma( struct mgsl_struct *info );
-static void mgsl_isr_transmit_dma( struct mgsl_struct *info );
-
-typedef void (*isr_dispatch_func)(struct mgsl_struct *);
-
-static isr_dispatch_func UscIsrTable[7] =
-{
- mgsl_isr_null,
- mgsl_isr_misc,
- mgsl_isr_io_pin,
- mgsl_isr_transmit_data,
- mgsl_isr_transmit_status,
- mgsl_isr_receive_data,
- mgsl_isr_receive_status
-};
-
-/*
- * ioctl call handlers
- */
-static int tiocmget(struct tty_struct *tty, struct file *file);
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
-static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount
- __user *user_icount);
-static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS __user *user_params);
-static int mgsl_set_params(struct mgsl_struct * info, MGSL_PARAMS __user *new_params);
-static int mgsl_get_txidle(struct mgsl_struct * info, int __user *idle_mode);
-static int mgsl_set_txidle(struct mgsl_struct * info, int idle_mode);
-static int mgsl_txenable(struct mgsl_struct * info, int enable);
-static int mgsl_txabort(struct mgsl_struct * info);
-static int mgsl_rxenable(struct mgsl_struct * info, int enable);
-static int mgsl_wait_event(struct mgsl_struct * info, int __user *mask);
-static int mgsl_loopmode_send_done( struct mgsl_struct * info );
-
-/* set non-zero on successful registration with PCI subsystem */
-static bool pci_registered;
-
-/*
- * Global linked list of SyncLink devices
- */
-static struct mgsl_struct *mgsl_device_list;
-static int mgsl_device_count;
-
-/*
- * Set this param to non-zero to load eax with the
- * .text section address and breakpoint on module load.
- * This is useful for use with gdb and add-symbol-file command.
- */
-static int break_on_load;
-
-/*
- * Driver major number, defaults to zero to get auto
- * assigned major number. May be forced as module parameter.
- */
-static int ttymajor;
-
-/*
- * Array of user specified options for ISA adapters.
- */
-static int io[MAX_ISA_DEVICES];
-static int irq[MAX_ISA_DEVICES];
-static int dma[MAX_ISA_DEVICES];
-static int debug_level;
-static int maxframe[MAX_TOTAL_DEVICES];
-static int txdmabufs[MAX_TOTAL_DEVICES];
-static int txholdbufs[MAX_TOTAL_DEVICES];
-
-module_param(break_on_load, bool, 0);
-module_param(ttymajor, int, 0);
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param_array(dma, int, NULL, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-module_param_array(txdmabufs, int, NULL, 0);
-module_param_array(txholdbufs, int, NULL, 0);
-
-static char *driver_name = "SyncLink serial driver";
-static char *driver_version = "$Revision: 4.38 $";
-
-static int synclink_init_one (struct pci_dev *dev,
- const struct pci_device_id *ent);
-static void synclink_remove_one (struct pci_dev *dev);
-
-static struct pci_device_id synclink_pci_tbl[] = {
- { PCI_VENDOR_ID_MICROGATE, PCI_DEVICE_ID_MICROGATE_USC, PCI_ANY_ID, PCI_ANY_ID, },
- { PCI_VENDOR_ID_MICROGATE, 0x0210, PCI_ANY_ID, PCI_ANY_ID, },
- { 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, synclink_pci_tbl);
-
-MODULE_LICENSE("GPL");
-
-static struct pci_driver synclink_pci_driver = {
- .name = "synclink",
- .id_table = synclink_pci_tbl,
- .probe = synclink_init_one,
- .remove = __devexit_p(synclink_remove_one),
-};
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-
-static void mgsl_change_params(struct mgsl_struct *info);
-static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout);
-
-/*
- * 1st function defined in .text section. Calling this function in
- * init_module() followed by a breakpoint allows a remote debugger
- * (gdb) to get the .text address for the add-symbol-file command.
- * This allows remote debugging of dynamically loadable modules.
- */
-static void* mgsl_get_text_ptr(void)
-{
- return mgsl_get_text_ptr;
-}
-
-static inline int mgsl_paranoia_check(struct mgsl_struct *info,
- char *name, const char *routine)
-{
-#ifdef MGSL_PARANOIA_CHECK
- static const char *badmagic =
- "Warning: bad magic number for mgsl struct (%s) in %s\n";
- static const char *badinfo =
- "Warning: null mgsl_struct for (%s) in %s\n";
-
- if (!info) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (info->magic != MGSL_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-#else
- if (!info)
- return 1;
-#endif
- return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf - pass receive data to line discipline
- */
-
-static void ldisc_receive_buf(struct tty_struct *tty,
- const __u8 *data, char *flags, int count)
-{
- struct tty_ldisc *ld;
- if (!tty)
- return;
- ld = tty_ldisc_ref(tty);
- if (ld) {
- if (ld->ops->receive_buf)
- ld->ops->receive_buf(tty, data, flags, count);
- tty_ldisc_deref(ld);
- }
-}
-
-/* mgsl_stop() throttle (stop) transmitter
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static void mgsl_stop(struct tty_struct *tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_stop"))
- return;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("mgsl_stop(%s)\n",info->device_name);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (info->tx_enabled)
- usc_stop_transmitter(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-} /* end of mgsl_stop() */
-
-/* mgsl_start() release (start) transmitter
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static void mgsl_start(struct tty_struct *tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_start"))
- return;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("mgsl_start(%s)\n",info->device_name);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (!info->tx_enabled)
- usc_start_transmitter(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-} /* end of mgsl_start() */
-
-/*
- * Bottom half work queue access functions
- */
-
-/* mgsl_bh_action() Return next bottom half action to perform.
- * Return Value: BH action code or 0 if nothing to do.
- */
-static int mgsl_bh_action(struct mgsl_struct *info)
-{
- unsigned long flags;
- int rc = 0;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- if (info->pending_bh & BH_RECEIVE) {
- info->pending_bh &= ~BH_RECEIVE;
- rc = BH_RECEIVE;
- } else if (info->pending_bh & BH_TRANSMIT) {
- info->pending_bh &= ~BH_TRANSMIT;
- rc = BH_TRANSMIT;
- } else if (info->pending_bh & BH_STATUS) {
- info->pending_bh &= ~BH_STATUS;
- rc = BH_STATUS;
- }
-
- if (!rc) {
- /* Mark BH routine as complete */
- info->bh_running = false;
- info->bh_requested = false;
- }
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- return rc;
-}
-
-/*
- * Perform bottom half processing of work items queued by ISR.
- */
-static void mgsl_bh_handler(struct work_struct *work)
-{
- struct mgsl_struct *info =
- container_of(work, struct mgsl_struct, task);
- int action;
-
- if (!info)
- return;
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):mgsl_bh_handler(%s) entry\n",
- __FILE__,__LINE__,info->device_name);
-
- info->bh_running = true;
-
- while((action = mgsl_bh_action(info)) != 0) {
-
- /* Process work item */
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):mgsl_bh_handler() work item action=%d\n",
- __FILE__,__LINE__,action);
-
- switch (action) {
-
- case BH_RECEIVE:
- mgsl_bh_receive(info);
- break;
- case BH_TRANSMIT:
- mgsl_bh_transmit(info);
- break;
- case BH_STATUS:
- mgsl_bh_status(info);
- break;
- default:
- /* unknown work item ID */
- printk("Unknown work item ID=%08X!\n", action);
- break;
- }
- }
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):mgsl_bh_handler(%s) exit\n",
- __FILE__,__LINE__,info->device_name);
-}
-
-static void mgsl_bh_receive(struct mgsl_struct *info)
-{
- bool (*get_rx_frame)(struct mgsl_struct *info) =
- (info->params.mode == MGSL_MODE_HDLC ? mgsl_get_rx_frame : mgsl_get_raw_rx_frame);
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):mgsl_bh_receive(%s)\n",
- __FILE__,__LINE__,info->device_name);
-
- do
- {
- if (info->rx_rcc_underrun) {
- unsigned long flags;
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_start_receiver(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- return;
- }
- } while(get_rx_frame(info));
-}
-
-static void mgsl_bh_transmit(struct mgsl_struct *info)
-{
- struct tty_struct *tty = info->port.tty;
- unsigned long flags;
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):mgsl_bh_transmit() entry on %s\n",
- __FILE__,__LINE__,info->device_name);
-
- if (tty)
- tty_wakeup(tty);
-
- /* if transmitter idle and loopmode_send_done_requested
- * then start echoing RxD to TxD
- */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if ( !info->tx_active && info->loopmode_send_done_requested )
- usc_loopmode_send_done( info );
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-static void mgsl_bh_status(struct mgsl_struct *info)
-{
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):mgsl_bh_status() entry on %s\n",
- __FILE__,__LINE__,info->device_name);
-
- info->ri_chkcount = 0;
- info->dsr_chkcount = 0;
- info->dcd_chkcount = 0;
- info->cts_chkcount = 0;
-}
-
-/* mgsl_isr_receive_status()
- *
- * Service a receive status interrupt. The type of status
- * interrupt is indicated by the state of the RCSR.
- * This is only used for HDLC mode.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_receive_status( struct mgsl_struct *info )
-{
- u16 status = usc_InReg( info, RCSR );
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_receive_status status=%04X\n",
- __FILE__,__LINE__,status);
-
- if ( (status & RXSTATUS_ABORT_RECEIVED) &&
- info->loopmode_insert_requested &&
- usc_loopmode_active(info) )
- {
- ++info->icount.rxabort;
- info->loopmode_insert_requested = false;
-
- /* clear CMR:13 to start echoing RxD to TxD */
- info->cmr_value &= ~BIT13;
- usc_OutReg(info, CMR, info->cmr_value);
-
- /* disable received abort irq (no longer required) */
- usc_OutReg(info, RICR,
- (usc_InReg(info, RICR) & ~RXSTATUS_ABORT_RECEIVED));
- }
-
- if (status & (RXSTATUS_EXITED_HUNT + RXSTATUS_IDLE_RECEIVED)) {
- if (status & RXSTATUS_EXITED_HUNT)
- info->icount.exithunt++;
- if (status & RXSTATUS_IDLE_RECEIVED)
- info->icount.rxidle++;
- wake_up_interruptible(&info->event_wait_q);
- }
-
- if (status & RXSTATUS_OVERRUN){
- info->icount.rxover++;
- usc_process_rxoverrun_sync( info );
- }
-
- usc_ClearIrqPendingBits( info, RECEIVE_STATUS );
- usc_UnlatchRxstatusBits( info, status );
-
-} /* end of mgsl_isr_receive_status() */
-
-/* mgsl_isr_transmit_status()
- *
- * Service a transmit status interrupt
- * HDLC mode :end of transmit frame
- * Async mode:all data is sent
- * transmit status is indicated by bits in the TCSR.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_transmit_status( struct mgsl_struct *info )
-{
- u16 status = usc_InReg( info, TCSR );
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_transmit_status status=%04X\n",
- __FILE__,__LINE__,status);
-
- usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
- usc_UnlatchTxstatusBits( info, status );
-
- if ( status & (TXSTATUS_UNDERRUN | TXSTATUS_ABORT_SENT) )
- {
- /* finished sending HDLC abort. This may leave */
- /* the TxFifo with data from the aborted frame */
- /* so purge the TxFifo. Also shutdown the DMA */
- /* channel in case there is data remaining in */
- /* the DMA buffer */
- usc_DmaCmd( info, DmaCmd_ResetTxChannel );
- usc_RTCmd( info, RTCmd_PurgeTxFifo );
- }
-
- if ( status & TXSTATUS_EOF_SENT )
- info->icount.txok++;
- else if ( status & TXSTATUS_UNDERRUN )
- info->icount.txunder++;
- else if ( status & TXSTATUS_ABORT_SENT )
- info->icount.txabort++;
- else
- info->icount.txunder++;
-
- info->tx_active = false;
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- del_timer(&info->tx_timer);
-
- if ( info->drop_rts_on_tx_done ) {
- usc_get_serial_signals( info );
- if ( info->serial_signals & SerialSignal_RTS ) {
- info->serial_signals &= ~SerialSignal_RTS;
- usc_set_serial_signals( info );
- }
- info->drop_rts_on_tx_done = false;
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_tx_done(info);
- else
-#endif
- {
- if (info->port.tty->stopped || info->port.tty->hw_stopped) {
- usc_stop_transmitter(info);
- return;
- }
- info->pending_bh |= BH_TRANSMIT;
- }
-
-} /* end of mgsl_isr_transmit_status() */
-
-/* mgsl_isr_io_pin()
- *
- * Service an Input/Output pin interrupt. The type of
- * interrupt is indicated by bits in the MISR
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_io_pin( struct mgsl_struct *info )
-{
- struct mgsl_icount *icount;
- u16 status = usc_InReg( info, MISR );
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_io_pin status=%04X\n",
- __FILE__,__LINE__,status);
-
- usc_ClearIrqPendingBits( info, IO_PIN );
- usc_UnlatchIostatusBits( info, status );
-
- if (status & (MISCSTATUS_CTS_LATCHED | MISCSTATUS_DCD_LATCHED |
- MISCSTATUS_DSR_LATCHED | MISCSTATUS_RI_LATCHED) ) {
- icount = &info->icount;
- /* update input line counters */
- if (status & MISCSTATUS_RI_LATCHED) {
- if ((info->ri_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
- usc_DisablestatusIrqs(info,SICR_RI);
- icount->rng++;
- if ( status & MISCSTATUS_RI )
- info->input_signal_events.ri_up++;
- else
- info->input_signal_events.ri_down++;
- }
- if (status & MISCSTATUS_DSR_LATCHED) {
- if ((info->dsr_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
- usc_DisablestatusIrqs(info,SICR_DSR);
- icount->dsr++;
- if ( status & MISCSTATUS_DSR )
- info->input_signal_events.dsr_up++;
- else
- info->input_signal_events.dsr_down++;
- }
- if (status & MISCSTATUS_DCD_LATCHED) {
- if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
- usc_DisablestatusIrqs(info,SICR_DCD);
- icount->dcd++;
- if (status & MISCSTATUS_DCD) {
- info->input_signal_events.dcd_up++;
- } else
- info->input_signal_events.dcd_down++;
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount) {
- if (status & MISCSTATUS_DCD)
- netif_carrier_on(info->netdev);
- else
- netif_carrier_off(info->netdev);
- }
-#endif
- }
- if (status & MISCSTATUS_CTS_LATCHED)
- {
- if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)
- usc_DisablestatusIrqs(info,SICR_CTS);
- icount->cts++;
- if ( status & MISCSTATUS_CTS )
- info->input_signal_events.cts_up++;
- else
- info->input_signal_events.cts_down++;
- }
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
-
- if ( (info->port.flags & ASYNC_CHECK_CD) &&
- (status & MISCSTATUS_DCD_LATCHED) ) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s CD now %s...", info->device_name,
- (status & MISCSTATUS_DCD) ? "on" : "off");
- if (status & MISCSTATUS_DCD)
- wake_up_interruptible(&info->port.open_wait);
- else {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("doing serial hangup...");
- if (info->port.tty)
- tty_hangup(info->port.tty);
- }
- }
-
- if ( (info->port.flags & ASYNC_CTS_FLOW) &&
- (status & MISCSTATUS_CTS_LATCHED) ) {
- if (info->port.tty->hw_stopped) {
- if (status & MISCSTATUS_CTS) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("CTS tx start...");
- if (info->port.tty)
- info->port.tty->hw_stopped = 0;
- usc_start_transmitter(info);
- info->pending_bh |= BH_TRANSMIT;
- return;
- }
- } else {
- if (!(status & MISCSTATUS_CTS)) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("CTS tx stop...");
- if (info->port.tty)
- info->port.tty->hw_stopped = 1;
- usc_stop_transmitter(info);
- }
- }
- }
- }
-
- info->pending_bh |= BH_STATUS;
-
- /* for diagnostics set IRQ flag */
- if ( status & MISCSTATUS_TXC_LATCHED ){
- usc_OutReg( info, SICR,
- (unsigned short)(usc_InReg(info,SICR) & ~(SICR_TXC_ACTIVE+SICR_TXC_INACTIVE)) );
- usc_UnlatchIostatusBits( info, MISCSTATUS_TXC_LATCHED );
- info->irq_occurred = true;
- }
-
-} /* end of mgsl_isr_io_pin() */
-
-/* mgsl_isr_transmit_data()
- *
- * Service a transmit data interrupt (async mode only).
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_transmit_data( struct mgsl_struct *info )
-{
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_transmit_data xmit_cnt=%d\n",
- __FILE__,__LINE__,info->xmit_cnt);
-
- usc_ClearIrqPendingBits( info, TRANSMIT_DATA );
-
- if (info->port.tty->stopped || info->port.tty->hw_stopped) {
- usc_stop_transmitter(info);
- return;
- }
-
- if ( info->xmit_cnt )
- usc_load_txfifo( info );
- else
- info->tx_active = false;
-
- if (info->xmit_cnt < WAKEUP_CHARS)
- info->pending_bh |= BH_TRANSMIT;
-
-} /* end of mgsl_isr_transmit_data() */
-
-/* mgsl_isr_receive_data()
- *
- * Service a receive data interrupt. This occurs
- * when operating in asynchronous interrupt transfer mode.
- * The receive data FIFO is flushed to the receive data buffers.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_receive_data( struct mgsl_struct *info )
-{
- int Fifocount;
- u16 status;
- int work = 0;
- unsigned char DataByte;
- struct tty_struct *tty = info->port.tty;
- struct mgsl_icount *icount = &info->icount;
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_receive_data\n",
- __FILE__,__LINE__);
-
- usc_ClearIrqPendingBits( info, RECEIVE_DATA );
-
- /* select FIFO status for RICR readback */
- usc_RCmd( info, RCmd_SelectRicrRxFifostatus );
-
- /* clear the Wordstatus bit so that status readback */
- /* only reflects the status of this byte */
- usc_OutReg( info, RICR+LSBONLY, (u16)(usc_InReg(info, RICR+LSBONLY) & ~BIT3 ));
-
- /* flush the receive FIFO */
-
- while( (Fifocount = (usc_InReg(info,RICR) >> 8)) ) {
- int flag;
-
- /* read one byte from RxFIFO */
- outw( (inw(info->io_base + CCAR) & 0x0780) | (RDR+LSBONLY),
- info->io_base + CCAR );
- DataByte = inb( info->io_base + CCAR );
-
- /* get the status of the received byte */
- status = usc_InReg(info, RCSR);
- if ( status & (RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR +
- RXSTATUS_OVERRUN + RXSTATUS_BREAK_RECEIVED) )
- usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);
-
- icount->rx++;
-
- flag = 0;
- if ( status & (RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR +
- RXSTATUS_OVERRUN + RXSTATUS_BREAK_RECEIVED) ) {
- printk("rxerr=%04X\n",status);
- /* update error statistics */
- if ( status & RXSTATUS_BREAK_RECEIVED ) {
- status &= ~(RXSTATUS_FRAMING_ERROR + RXSTATUS_PARITY_ERROR);
- icount->brk++;
- } else if (status & RXSTATUS_PARITY_ERROR)
- icount->parity++;
- else if (status & RXSTATUS_FRAMING_ERROR)
- icount->frame++;
- else if (status & RXSTATUS_OVERRUN) {
- /* must issue purge fifo cmd before */
- /* 16C32 accepts more receive chars */
- usc_RTCmd(info,RTCmd_PurgeRxFifo);
- icount->overrun++;
- }
-
- /* discard char if tty control flags say so */
- if (status & info->ignore_status_mask)
- continue;
-
- status &= info->read_status_mask;
-
- if (status & RXSTATUS_BREAK_RECEIVED) {
- flag = TTY_BREAK;
- if (info->port.flags & ASYNC_SAK)
- do_SAK(tty);
- } else if (status & RXSTATUS_PARITY_ERROR)
- flag = TTY_PARITY;
- else if (status & RXSTATUS_FRAMING_ERROR)
- flag = TTY_FRAME;
- } /* end of if (error) */
- tty_insert_flip_char(tty, DataByte, flag);
- if (status & RXSTATUS_OVERRUN) {
- /* Overrun is special, since it's
- * reported immediately, and doesn't
- * affect the current character
- */
- work += tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- }
- }
-
- if ( debug_level >= DEBUG_LEVEL_ISR ) {
- printk("%s(%d):rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
- __FILE__,__LINE__,icount->rx,icount->brk,
- icount->parity,icount->frame,icount->overrun);
- }
-
- if(work)
- tty_flip_buffer_push(tty);
-}
-
-/* mgsl_isr_misc()
- *
- * Service a miscellaneous interrupt source.
- *
- * Arguments: info pointer to device extension (instance data)
- * Return Value: None
- */
-static void mgsl_isr_misc( struct mgsl_struct *info )
-{
- u16 status = usc_InReg( info, MISR );
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_misc status=%04X\n",
- __FILE__,__LINE__,status);
-
- if ((status & MISCSTATUS_RCC_UNDERRUN) &&
- (info->params.mode == MGSL_MODE_HDLC)) {
-
- /* turn off receiver and rx DMA */
- usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);
- usc_DmaCmd(info, DmaCmd_ResetRxChannel);
- usc_UnlatchRxstatusBits(info, RXSTATUS_ALL);
- usc_ClearIrqPendingBits(info, RECEIVE_DATA + RECEIVE_STATUS);
- usc_DisableInterrupts(info, RECEIVE_DATA + RECEIVE_STATUS);
-
- /* schedule BH handler to restart receiver */
- info->pending_bh |= BH_RECEIVE;
- info->rx_rcc_underrun = true;
- }
-
- usc_ClearIrqPendingBits( info, MISC );
- usc_UnlatchMiscstatusBits( info, status );
-
-} /* end of mgsl_isr_misc() */
-
-/* mgsl_isr_null()
- *
- * Services undefined interrupt vectors from the
- * USC. (hence this function SHOULD never be called)
- *
- * Arguments: info pointer to device extension (instance data)
- * Return Value: None
- */
-static void mgsl_isr_null( struct mgsl_struct *info )
-{
-
-} /* end of mgsl_isr_null() */
-
-/* mgsl_isr_receive_dma()
- *
- * Service a receive DMA channel interrupt.
- * For this driver there are two sources of receive DMA interrupts
- * as identified in the Receive DMA mode Register (RDMR):
- *
- * BIT3 EOA/EOL End of List, all receive buffers in receive
- * buffer list have been filled (no more free buffers
- * available). The DMA controller has shut down.
- *
- * BIT2 EOB End of Buffer. This interrupt occurs when a receive
- * DMA buffer is terminated in response to completion
- * of a good frame or a frame with errors. The status
- * of the frame is stored in the buffer entry in the
- * list of receive buffer entries.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_receive_dma( struct mgsl_struct *info )
-{
- u16 status;
-
- /* clear interrupt pending and IUS bit for Rx DMA IRQ */
- usc_OutDmaReg( info, CDIR, BIT9+BIT1 );
-
- /* Read the receive DMA status to identify interrupt type. */
- /* This also clears the status bits. */
- status = usc_InDmaReg( info, RDMR );
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_receive_dma(%s) status=%04X\n",
- __FILE__,__LINE__,info->device_name,status);
-
- info->pending_bh |= BH_RECEIVE;
-
- if ( status & BIT3 ) {
- info->rx_overflow = true;
- info->icount.buf_overrun++;
- }
-
-} /* end of mgsl_isr_receive_dma() */
-
-/* mgsl_isr_transmit_dma()
- *
- * This function services a transmit DMA channel interrupt.
- *
- * For this driver there is one source of transmit DMA interrupts
- * as identified in the Transmit DMA Mode Register (TDMR):
- *
- * BIT2 EOB End of Buffer. This interrupt occurs when a
- * transmit DMA buffer has been emptied.
- *
- * The driver maintains enough transmit DMA buffers to hold at least
- * one max frame size transmit frame. When operating in a buffered
- * transmit mode, there may be enough transmit DMA buffers to hold at
- * least two or more max frame size frames. On an EOB condition,
- * determine if there are any queued transmit buffers and copy into
- * transmit DMA buffers if we have room.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_isr_transmit_dma( struct mgsl_struct *info )
-{
- u16 status;
-
- /* clear interrupt pending and IUS bit for Tx DMA IRQ */
- usc_OutDmaReg(info, CDIR, BIT8+BIT0 );
-
- /* Read the transmit DMA status to identify interrupt type. */
- /* This also clears the status bits. */
-
- status = usc_InDmaReg( info, TDMR );
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):mgsl_isr_transmit_dma(%s) status=%04X\n",
- __FILE__,__LINE__,info->device_name,status);
-
- if ( status & BIT2 ) {
- --info->tx_dma_buffers_used;
-
- /* if there are transmit frames queued,
- * try to load the next one
- */
- if ( load_next_tx_holding_buffer(info) ) {
- /* if call returns non-zero value, we have
- * at least one free tx holding buffer
- */
- info->pending_bh |= BH_TRANSMIT;
- }
- }
-
-} /* end of mgsl_isr_transmit_dma() */
-
-/* mgsl_interrupt()
- *
- * Interrupt service routine entry point.
- *
- * Arguments:
- *
- * irq interrupt number that caused interrupt
- * dev_id device ID supplied during interrupt registration
- *
- * Return Value: None
- */
-static irqreturn_t mgsl_interrupt(int dummy, void *dev_id)
-{
- struct mgsl_struct *info = dev_id;
- u16 UscVector;
- u16 DmaVector;
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk(KERN_DEBUG "%s(%d):mgsl_interrupt(%d)entry.\n",
- __FILE__, __LINE__, info->irq_level);
-
- spin_lock(&info->irq_spinlock);
-
- for(;;) {
- /* Read the interrupt vectors from hardware. */
- UscVector = usc_InReg(info, IVR) >> 9;
- DmaVector = usc_InDmaReg(info, DIVR);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s UscVector=%08X DmaVector=%08X\n",
- __FILE__,__LINE__,info->device_name,UscVector,DmaVector);
-
- if ( !UscVector && !DmaVector )
- break;
-
- /* Dispatch interrupt vector */
- if ( UscVector )
- (*UscIsrTable[UscVector])(info);
- else if ( (DmaVector&(BIT10|BIT9)) == BIT10)
- mgsl_isr_transmit_dma(info);
- else
- mgsl_isr_receive_dma(info);
-
- if ( info->isr_overflow ) {
- printk(KERN_ERR "%s(%d):%s isr overflow irq=%d\n",
- __FILE__, __LINE__, info->device_name, info->irq_level);
- usc_DisableMasterIrqBit(info);
- usc_DisableDmaInterrupts(info,DICR_MASTER);
- break;
- }
- }
-
- /* Request bottom half processing if there's something
- * for it to do and the bh is not already running
- */
-
- if ( info->pending_bh && !info->bh_running && !info->bh_requested ) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s queueing bh task.\n",
- __FILE__,__LINE__,info->device_name);
- schedule_work(&info->task);
- info->bh_requested = true;
- }
-
- spin_unlock(&info->irq_spinlock);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk(KERN_DEBUG "%s(%d):mgsl_interrupt(%d)exit.\n",
- __FILE__, __LINE__, info->irq_level);
-
- return IRQ_HANDLED;
-} /* end of mgsl_interrupt() */
-
-/* startup()
- *
- * Initialize and start device.
- *
- * Arguments: info pointer to device instance data
- * Return Value: 0 if success, otherwise error code
- */
-static int startup(struct mgsl_struct * info)
-{
- int retval = 0;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name);
-
- if (info->port.flags & ASYNC_INITIALIZED)
- return 0;
-
- if (!info->xmit_buf) {
- /* allocate a page of memory for a transmit buffer */
- info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
- if (!info->xmit_buf) {
- printk(KERN_ERR"%s(%d):%s can't allocate transmit buffer\n",
- __FILE__,__LINE__,info->device_name);
- return -ENOMEM;
- }
- }
-
- info->pending_bh = 0;
-
- memset(&info->icount, 0, sizeof(info->icount));
-
- setup_timer(&info->tx_timer, mgsl_tx_timeout, (unsigned long)info);
-
- /* Allocate and claim adapter resources */
- retval = mgsl_claim_resources(info);
-
- /* perform existence check and diagnostics */
- if ( !retval )
- retval = mgsl_adapter_test(info);
-
- if ( retval ) {
- if (capable(CAP_SYS_ADMIN) && info->port.tty)
- set_bit(TTY_IO_ERROR, &info->port.tty->flags);
- mgsl_release_resources(info);
- return retval;
- }
-
- /* program hardware for current parameters */
- mgsl_change_params(info);
-
- if (info->port.tty)
- clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
- info->port.flags |= ASYNC_INITIALIZED;
-
- return 0;
-
-} /* end of startup() */
-
-/* shutdown()
- *
- * Called by mgsl_close() and mgsl_hangup() to shutdown hardware
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void shutdown(struct mgsl_struct * info)
-{
- unsigned long flags;
-
- if (!(info->port.flags & ASYNC_INITIALIZED))
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_shutdown(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- /* clear status wait queue because status changes */
- /* can't happen after shutting down the hardware */
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
-
- del_timer_sync(&info->tx_timer);
-
- if (info->xmit_buf) {
- free_page((unsigned long) info->xmit_buf);
- info->xmit_buf = NULL;
- }
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_DisableMasterIrqBit(info);
- usc_stop_receiver(info);
- usc_stop_transmitter(info);
- usc_DisableInterrupts(info,RECEIVE_DATA + RECEIVE_STATUS +
- TRANSMIT_DATA + TRANSMIT_STATUS + IO_PIN + MISC );
- usc_DisableDmaInterrupts(info,DICR_MASTER + DICR_TRANSMIT + DICR_RECEIVE);
-
- /* Disable DMAEN (Port 7, Bit 14) */
- /* This disconnects the DMA request signal from the ISA bus */
- /* on the ISA adapter. This has no effect for the PCI adapter */
- usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) | BIT14));
-
- /* Disable INTEN (Port 6, Bit12) */
- /* This disconnects the IRQ request signal to the ISA bus */
- /* on the ISA adapter. This has no effect for the PCI adapter */
- usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));
-
- if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
- usc_set_serial_signals(info);
- }
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- mgsl_release_resources(info);
-
- if (info->port.tty)
- set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
- info->port.flags &= ~ASYNC_INITIALIZED;
-
-} /* end of shutdown() */
-
-static void mgsl_program_hw(struct mgsl_struct *info)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- usc_stop_receiver(info);
- usc_stop_transmitter(info);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
- if (info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ||
- info->netcount)
- usc_set_sync_mode(info);
- else
- usc_set_async_mode(info);
-
- usc_set_serial_signals(info);
-
- info->dcd_chkcount = 0;
- info->cts_chkcount = 0;
- info->ri_chkcount = 0;
- info->dsr_chkcount = 0;
-
- usc_EnableStatusIrqs(info,SICR_CTS+SICR_DSR+SICR_DCD+SICR_RI);
- usc_EnableInterrupts(info, IO_PIN);
- usc_get_serial_signals(info);
-
- if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
- usc_start_receiver(info);
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-/* Reconfigure adapter based on new parameters
- */
-static void mgsl_change_params(struct mgsl_struct *info)
-{
- unsigned cflag;
- int bits_per_char;
-
- if (!info->port.tty || !info->port.tty->termios)
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_change_params(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- cflag = info->port.tty->termios->c_cflag;
-
- /* if B0 rate (hangup) specified then negate DTR and RTS */
- /* otherwise assert DTR and RTS */
- if (cflag & CBAUD)
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- else
- info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-
- /* byte size and parity */
-
- switch (cflag & CSIZE) {
- case CS5: info->params.data_bits = 5; break;
- case CS6: info->params.data_bits = 6; break;
- case CS7: info->params.data_bits = 7; break;
- case CS8: info->params.data_bits = 8; break;
- /* Never happens, but GCC is too dumb to figure it out */
- default: info->params.data_bits = 7; break;
- }
-
- if (cflag & CSTOPB)
- info->params.stop_bits = 2;
- else
- info->params.stop_bits = 1;
-
- info->params.parity = ASYNC_PARITY_NONE;
- if (cflag & PARENB) {
- if (cflag & PARODD)
- info->params.parity = ASYNC_PARITY_ODD;
- else
- info->params.parity = ASYNC_PARITY_EVEN;
-#ifdef CMSPAR
- if (cflag & CMSPAR)
- info->params.parity = ASYNC_PARITY_SPACE;
-#endif
- }
-
- /* calculate number of jiffies to transmit a full
- * FIFO (32 bytes) at specified data rate
- */
- bits_per_char = info->params.data_bits +
- info->params.stop_bits + 1;
-
- /* if port data rate is set to 460800 or less then
- * allow tty settings to override, otherwise keep the
- * current data rate.
- */
- if (info->params.data_rate <= 460800)
- info->params.data_rate = tty_get_baud_rate(info->port.tty);
-
- if ( info->params.data_rate ) {
- info->timeout = (32*HZ*bits_per_char) /
- info->params.data_rate;
- }
- info->timeout += HZ/50; /* Add .02 seconds of slop */
-
- if (cflag & CRTSCTS)
- info->port.flags |= ASYNC_CTS_FLOW;
- else
- info->port.flags &= ~ASYNC_CTS_FLOW;
-
- if (cflag & CLOCAL)
- info->port.flags &= ~ASYNC_CHECK_CD;
- else
- info->port.flags |= ASYNC_CHECK_CD;
-
- /* process tty input control flags */
-
- info->read_status_mask = RXSTATUS_OVERRUN;
- if (I_INPCK(info->port.tty))
- info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
- if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- info->read_status_mask |= RXSTATUS_BREAK_RECEIVED;
-
- if (I_IGNPAR(info->port.tty))
- info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
- if (I_IGNBRK(info->port.tty)) {
- info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED;
- /* If ignoring parity and break indicators, ignore
- * overruns too. (For real raw support).
- */
- if (I_IGNPAR(info->port.tty))
- info->ignore_status_mask |= RXSTATUS_OVERRUN;
- }
-
- mgsl_program_hw(info);
-
-} /* end of mgsl_change_params() */
-
-/* mgsl_put_char()
- *
- * Add a character to the transmit buffer.
- *
- * Arguments: tty pointer to tty information structure
- * ch character to add to transmit buffer
- *
- * Return Value: None
- */
-static int mgsl_put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
- int ret = 0;
-
- if (debug_level >= DEBUG_LEVEL_INFO) {
- printk(KERN_DEBUG "%s(%d):mgsl_put_char(%d) on %s\n",
- __FILE__, __LINE__, ch, info->device_name);
- }
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char"))
- return 0;
-
- if (!info->xmit_buf)
- return 0;
-
- spin_lock_irqsave(&info->irq_spinlock, flags);
-
- if ((info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active) {
- if (info->xmit_cnt < SERIAL_XMIT_SIZE - 1) {
- info->xmit_buf[info->xmit_head++] = ch;
- info->xmit_head &= SERIAL_XMIT_SIZE-1;
- info->xmit_cnt++;
- ret = 1;
- }
- }
- spin_unlock_irqrestore(&info->irq_spinlock, flags);
- return ret;
-
-} /* end of mgsl_put_char() */
-
-/* mgsl_flush_chars()
- *
- * Enable transmitter so remaining characters in the
- * transmit buffer are sent.
- *
- * Arguments: tty pointer to tty information structure
- * Return Value: None
- */
-static void mgsl_flush_chars(struct tty_struct *tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_flush_chars() entry on %s xmit_cnt=%d\n",
- __FILE__,__LINE__,info->device_name,info->xmit_cnt);
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_chars"))
- return;
-
- if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
- !info->xmit_buf)
- return;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_flush_chars() entry on %s starting transmitter\n",
- __FILE__,__LINE__,info->device_name );
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- if (!info->tx_active) {
- if ( (info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW) && info->xmit_cnt ) {
- /* operating in synchronous (frame oriented) mode */
- /* copy data from circular xmit_buf to */
- /* transmit DMA buffer. */
- mgsl_load_tx_dma_buffer(info,
- info->xmit_buf,info->xmit_cnt);
- }
- usc_start_transmitter(info);
- }
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-} /* end of mgsl_flush_chars() */
-
-/* mgsl_write()
- *
- * Send a block of data
- *
- * Arguments:
- *
- * tty pointer to tty information structure
- * buf pointer to buffer containing send data
- * count size of send data in bytes
- *
- * Return Value: number of characters written
- */
-static int mgsl_write(struct tty_struct * tty,
- const unsigned char *buf, int count)
-{
- int c, ret = 0;
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_write(%s) count=%d\n",
- __FILE__,__LINE__,info->device_name,count);
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_write"))
- goto cleanup;
-
- if (!info->xmit_buf)
- goto cleanup;
-
- if ( info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ) {
- /* operating in synchronous (frame oriented) mode */
- /* operating in synchronous (frame oriented) mode */
- if (info->tx_active) {
-
- if ( info->params.mode == MGSL_MODE_HDLC ) {
- ret = 0;
- goto cleanup;
- }
- /* transmitter is actively sending data -
- * if we have multiple transmit dma and
- * holding buffers, attempt to queue this
- * frame for transmission at a later time.
- */
- if (info->tx_holding_count >= info->num_tx_holding_buffers ) {
- /* no tx holding buffers available */
- ret = 0;
- goto cleanup;
- }
-
- /* queue transmit frame request */
- ret = count;
- save_tx_buffer_request(info,buf,count);
-
- /* if we have sufficient tx dma buffers,
- * load the next buffered tx request
- */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- load_next_tx_holding_buffer(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- goto cleanup;
- }
-
- /* if operating in HDLC LoopMode and the adapter */
- /* has yet to be inserted into the loop, we can't */
- /* transmit */
-
- if ( (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) &&
- !usc_loopmode_active(info) )
- {
- ret = 0;
- goto cleanup;
- }
-
- if ( info->xmit_cnt ) {
- /* Send accumulated from send_char() calls */
- /* as frame and wait before accepting more data. */
- ret = 0;
-
- /* copy data from circular xmit_buf to */
- /* transmit DMA buffer. */
- mgsl_load_tx_dma_buffer(info,
- info->xmit_buf,info->xmit_cnt);
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_write(%s) sync xmit_cnt flushing\n",
- __FILE__,__LINE__,info->device_name);
- } else {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_write(%s) sync transmit accepted\n",
- __FILE__,__LINE__,info->device_name);
- ret = count;
- info->xmit_cnt = count;
- mgsl_load_tx_dma_buffer(info,buf,count);
- }
- } else {
- while (1) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- c = min_t(int, count,
- min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,
- SERIAL_XMIT_SIZE - info->xmit_head));
- if (c <= 0) {
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- break;
- }
- memcpy(info->xmit_buf + info->xmit_head, buf, c);
- info->xmit_head = ((info->xmit_head + c) &
- (SERIAL_XMIT_SIZE-1));
- info->xmit_cnt += c;
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- buf += c;
- count -= c;
- ret += c;
- }
- }
-
- if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (!info->tx_active)
- usc_start_transmitter(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-cleanup:
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_write(%s) returning=%d\n",
- __FILE__,__LINE__,info->device_name,ret);
-
- return ret;
-
-} /* end of mgsl_write() */
-
-/* mgsl_write_room()
- *
- * Return the count of free bytes in transmit buffer
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static int mgsl_write_room(struct tty_struct *tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- int ret;
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_write_room"))
- return 0;
- ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;
- if (ret < 0)
- ret = 0;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_write_room(%s)=%d\n",
- __FILE__,__LINE__, info->device_name,ret );
-
- if ( info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ) {
- /* operating in synchronous (frame oriented) mode */
- if ( info->tx_active )
- return 0;
- else
- return HDLC_MAX_FRAME_SIZE;
- }
-
- return ret;
-
-} /* end of mgsl_write_room() */
-
-/* mgsl_chars_in_buffer()
- *
- * Return the count of bytes in transmit buffer
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static int mgsl_chars_in_buffer(struct tty_struct *tty)
-{
- struct mgsl_struct *info = tty->driver_data;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_chars_in_buffer(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_chars_in_buffer"))
- return 0;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_chars_in_buffer(%s)=%d\n",
- __FILE__,__LINE__, info->device_name,info->xmit_cnt );
-
- if ( info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ) {
- /* operating in synchronous (frame oriented) mode */
- if ( info->tx_active )
- return info->max_frame_size;
- else
- return 0;
- }
-
- return info->xmit_cnt;
-} /* end of mgsl_chars_in_buffer() */
-
-/* mgsl_flush_buffer()
- *
- * Discard all data in the send buffer
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static void mgsl_flush_buffer(struct tty_struct *tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_flush_buffer(%s) entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_buffer"))
- return;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
- del_timer(&info->tx_timer);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- tty_wakeup(tty);
-}
-
-/* mgsl_send_xchar()
- *
- * Send a high-priority XON/XOFF character
- *
- * Arguments: tty pointer to tty info structure
- * ch character to send
- * Return Value: None
- */
-static void mgsl_send_xchar(struct tty_struct *tty, char ch)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_send_xchar(%s,%d)\n",
- __FILE__,__LINE__, info->device_name, ch );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_send_xchar"))
- return;
-
- info->x_char = ch;
- if (ch) {
- /* Make sure transmit interrupts are on */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (!info->tx_enabled)
- usc_start_transmitter(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-} /* end of mgsl_send_xchar() */
-
-/* mgsl_throttle()
- *
- * Signal remote device to throttle send data (our receive data)
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static void mgsl_throttle(struct tty_struct * tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_throttle(%s) entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_throttle"))
- return;
-
- if (I_IXOFF(tty))
- mgsl_send_xchar(tty, STOP_CHAR(tty));
-
- if (tty->termios->c_cflag & CRTSCTS) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- info->serial_signals &= ~SerialSignal_RTS;
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-} /* end of mgsl_throttle() */
-
-/* mgsl_unthrottle()
- *
- * Signal remote device to stop throttling send data (our receive data)
- *
- * Arguments: tty pointer to tty info structure
- * Return Value: None
- */
-static void mgsl_unthrottle(struct tty_struct * tty)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_unthrottle(%s) entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_unthrottle"))
- return;
-
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else
- mgsl_send_xchar(tty, START_CHAR(tty));
- }
-
- if (tty->termios->c_cflag & CRTSCTS) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- info->serial_signals |= SerialSignal_RTS;
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-
-} /* end of mgsl_unthrottle() */
-
-/* mgsl_get_stats()
- *
- * get the current serial parameters information
- *
- * Arguments: info pointer to device instance data
- * user_icount pointer to buffer to hold returned stats
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount __user *user_icount)
-{
- int err;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_get_params(%s)\n",
- __FILE__,__LINE__, info->device_name);
-
- if (!user_icount) {
- memset(&info->icount, 0, sizeof(info->icount));
- } else {
- mutex_lock(&info->port.mutex);
- COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
- mutex_unlock(&info->port.mutex);
- if (err)
- return -EFAULT;
- }
-
- return 0;
-
-} /* end of mgsl_get_stats() */
-
-/* mgsl_get_params()
- *
- * get the current serial parameters information
- *
- * Arguments: info pointer to device instance data
- * user_params pointer to buffer to hold returned params
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS __user *user_params)
-{
- int err;
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_get_params(%s)\n",
- __FILE__,__LINE__, info->device_name);
-
- mutex_lock(&info->port.mutex);
- COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS));
- mutex_unlock(&info->port.mutex);
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_get_params(%s) user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
- }
-
- return 0;
-
-} /* end of mgsl_get_params() */
-
-/* mgsl_set_params()
- *
- * set the serial parameters
- *
- * Arguments:
- *
- * info pointer to device instance data
- * new_params user buffer containing new serial params
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_set_params(struct mgsl_struct * info, MGSL_PARAMS __user *new_params)
-{
- unsigned long flags;
- MGSL_PARAMS tmp_params;
- int err;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_set_params %s\n", __FILE__,__LINE__,
- info->device_name );
- COPY_FROM_USER(err,&tmp_params, new_params, sizeof(MGSL_PARAMS));
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_set_params(%s) user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
- }
-
- mutex_lock(&info->port.mutex);
- spin_lock_irqsave(&info->irq_spinlock,flags);
- memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- mgsl_change_params(info);
- mutex_unlock(&info->port.mutex);
-
- return 0;
-
-} /* end of mgsl_set_params() */
-
-/* mgsl_get_txidle()
- *
- * get the current transmit idle mode
- *
- * Arguments: info pointer to device instance data
- * idle_mode pointer to buffer to hold returned idle mode
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_get_txidle(struct mgsl_struct * info, int __user *idle_mode)
-{
- int err;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_get_txidle(%s)=%d\n",
- __FILE__,__LINE__, info->device_name, info->idle_mode);
-
- COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int));
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_get_txidle(%s) user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
- }
-
- return 0;
-
-} /* end of mgsl_get_txidle() */
-
-/* mgsl_set_txidle() service ioctl to set transmit idle mode
- *
- * Arguments: info pointer to device instance data
- * idle_mode new idle mode
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_set_txidle(struct mgsl_struct * info, int idle_mode)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_set_txidle(%s,%d)\n", __FILE__,__LINE__,
- info->device_name, idle_mode );
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- info->idle_mode = idle_mode;
- usc_set_txidle( info );
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- return 0;
-
-} /* end of mgsl_set_txidle() */
-
-/* mgsl_txenable()
- *
- * enable or disable the transmitter
- *
- * Arguments:
- *
- * info pointer to device instance data
- * enable 1 = enable, 0 = disable
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_txenable(struct mgsl_struct * info, int enable)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_txenable(%s,%d)\n", __FILE__,__LINE__,
- info->device_name, enable);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if ( enable ) {
- if ( !info->tx_enabled ) {
-
- usc_start_transmitter(info);
- /*--------------------------------------------------
- * if HDLC/SDLC Loop mode, attempt to insert the
- * station in the 'loop' by setting CMR:13. Upon
- * receipt of the next GoAhead (RxAbort) sequence,
- * the OnLoop indicator (CCSR:7) should go active
- * to indicate that we are on the loop
- *--------------------------------------------------*/
- if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
- usc_loopmode_insert_request( info );
- }
- } else {
- if ( info->tx_enabled )
- usc_stop_transmitter(info);
- }
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- return 0;
-
-} /* end of mgsl_txenable() */
-
-/* mgsl_txabort() abort send HDLC frame
- *
- * Arguments: info pointer to device instance data
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_txabort(struct mgsl_struct * info)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_txabort(%s)\n", __FILE__,__LINE__,
- info->device_name);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC )
- {
- if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
- usc_loopmode_cancel_transmit( info );
- else
- usc_TCmd(info,TCmd_SendAbort);
- }
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- return 0;
-
-} /* end of mgsl_txabort() */
-
-/* mgsl_rxenable() enable or disable the receiver
- *
- * Arguments: info pointer to device instance data
- * enable 1 = enable, 0 = disable
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_rxenable(struct mgsl_struct * info, int enable)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_rxenable(%s,%d)\n", __FILE__,__LINE__,
- info->device_name, enable);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if ( enable ) {
- if ( !info->rx_enabled )
- usc_start_receiver(info);
- } else {
- if ( info->rx_enabled )
- usc_stop_receiver(info);
- }
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- return 0;
-
-} /* end of mgsl_rxenable() */
-
-/* mgsl_wait_event() wait for specified event to occur
- *
- * Arguments: info pointer to device instance data
- * mask pointer to bitmask of events to wait for
- * Return Value: 0 if successful and bit mask updated with
- * of events triggerred,
- * otherwise error code
- */
-static int mgsl_wait_event(struct mgsl_struct * info, int __user * mask_ptr)
-{
- unsigned long flags;
- int s;
- int rc=0;
- struct mgsl_icount cprev, cnow;
- int events;
- int mask;
- struct _input_signal_events oldsigs, newsigs;
- DECLARE_WAITQUEUE(wait, current);
-
- COPY_FROM_USER(rc,&mask, mask_ptr, sizeof(int));
- if (rc) {
- return -EFAULT;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_wait_event(%s,%d)\n", __FILE__,__LINE__,
- info->device_name, mask);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- /* return immediately if state matches requested events */
- usc_get_serial_signals(info);
- s = info->serial_signals;
- events = mask &
- ( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
- ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
- ((s & SerialSignal_RI) ? MgslEvent_RiActive :MgslEvent_RiInactive) );
- if (events) {
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- goto exit;
- }
-
- /* save current irq counts */
- cprev = info->icount;
- oldsigs = info->input_signal_events;
-
- /* enable hunt and idle irqs if needed */
- if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
- u16 oldreg = usc_InReg(info,RICR);
- u16 newreg = oldreg +
- (mask & MgslEvent_ExitHuntMode ? RXSTATUS_EXITED_HUNT:0) +
- (mask & MgslEvent_IdleReceived ? RXSTATUS_IDLE_RECEIVED:0);
- if (oldreg != newreg)
- usc_OutReg(info, RICR, newreg);
- }
-
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&info->event_wait_q, &wait);
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
- for(;;) {
- schedule();
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
-
- /* get current irq counts */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- cnow = info->icount;
- newsigs = info->input_signal_events;
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- /* if no change, wait aborted for some reason */
- if (newsigs.dsr_up == oldsigs.dsr_up &&
- newsigs.dsr_down == oldsigs.dsr_down &&
- newsigs.dcd_up == oldsigs.dcd_up &&
- newsigs.dcd_down == oldsigs.dcd_down &&
- newsigs.cts_up == oldsigs.cts_up &&
- newsigs.cts_down == oldsigs.cts_down &&
- newsigs.ri_up == oldsigs.ri_up &&
- newsigs.ri_down == oldsigs.ri_down &&
- cnow.exithunt == cprev.exithunt &&
- cnow.rxidle == cprev.rxidle) {
- rc = -EIO;
- break;
- }
-
- events = mask &
- ( (newsigs.dsr_up != oldsigs.dsr_up ? MgslEvent_DsrActive:0) +
- (newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
- (newsigs.dcd_up != oldsigs.dcd_up ? MgslEvent_DcdActive:0) +
- (newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
- (newsigs.cts_up != oldsigs.cts_up ? MgslEvent_CtsActive:0) +
- (newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
- (newsigs.ri_up != oldsigs.ri_up ? MgslEvent_RiActive:0) +
- (newsigs.ri_down != oldsigs.ri_down ? MgslEvent_RiInactive:0) +
- (cnow.exithunt != cprev.exithunt ? MgslEvent_ExitHuntMode:0) +
- (cnow.rxidle != cprev.rxidle ? MgslEvent_IdleReceived:0) );
- if (events)
- break;
-
- cprev = cnow;
- oldsigs = newsigs;
- }
-
- remove_wait_queue(&info->event_wait_q, &wait);
- set_current_state(TASK_RUNNING);
-
- if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (!waitqueue_active(&info->event_wait_q)) {
- /* disable enable exit hunt mode/idle rcvd IRQs */
- usc_OutReg(info, RICR, usc_InReg(info,RICR) &
- ~(RXSTATUS_EXITED_HUNT + RXSTATUS_IDLE_RECEIVED));
- }
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-exit:
- if ( rc == 0 )
- PUT_USER(rc, events, mask_ptr);
-
- return rc;
-
-} /* end of mgsl_wait_event() */
-
-static int modem_input_wait(struct mgsl_struct *info,int arg)
-{
- unsigned long flags;
- int rc;
- struct mgsl_icount cprev, cnow;
- DECLARE_WAITQUEUE(wait, current);
-
- /* save current irq counts */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- cprev = info->icount;
- add_wait_queue(&info->status_event_wait_q, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- for(;;) {
- schedule();
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
-
- /* get new irq counts */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- cnow = info->icount;
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- /* if no change, wait aborted for some reason */
- if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
- cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
- rc = -EIO;
- break;
- }
-
- /* check for change in caller specified modem input */
- if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
- (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
- (arg & TIOCM_CD && cnow.dcd != cprev.dcd) ||
- (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
- rc = 0;
- break;
- }
-
- cprev = cnow;
- }
- remove_wait_queue(&info->status_event_wait_q, &wait);
- set_current_state(TASK_RUNNING);
- return rc;
-}
-
-/* return the state of the serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned int result;
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_get_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
- ((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
- ((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
- ((info->serial_signals & SerialSignal_RI) ? TIOCM_RNG:0) +
- ((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
- ((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s tiocmget() value=%08X\n",
- __FILE__,__LINE__, info->device_name, result );
- return result;
-}
-
-/* set modem control signals (DTR/RTS)
- */
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s tiocmset(%x,%x)\n",
- __FILE__,__LINE__,info->device_name, set, clear);
-
- if (set & TIOCM_RTS)
- info->serial_signals |= SerialSignal_RTS;
- if (set & TIOCM_DTR)
- info->serial_signals |= SerialSignal_DTR;
- if (clear & TIOCM_RTS)
- info->serial_signals &= ~SerialSignal_RTS;
- if (clear & TIOCM_DTR)
- info->serial_signals &= ~SerialSignal_DTR;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- return 0;
-}
-
-/* mgsl_break() Set or clear transmit break condition
- *
- * Arguments: tty pointer to tty instance data
- * break_state -1=set break condition, 0=clear
- * Return Value: error code
- */
-static int mgsl_break(struct tty_struct *tty, int break_state)
-{
- struct mgsl_struct * info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_break(%s,%d)\n",
- __FILE__,__LINE__, info->device_name, break_state);
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_break"))
- return -EINVAL;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (break_state == -1)
- usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) | BIT7));
- else
- usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) & ~BIT7));
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- return 0;
-
-} /* end of mgsl_break() */
-
-/*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- * RI where only 0->1 is counted.
- */
-static int msgl_get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-
-{
- struct mgsl_struct * info = tty->driver_data;
- struct mgsl_icount cnow; /* kernel counter temps */
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- cnow = info->icount;
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->frame = cnow.frame;
- icount->overrun = cnow.overrun;
- icount->parity = cnow.parity;
- icount->brk = cnow.brk;
- icount->buf_overrun = cnow.buf_overrun;
- return 0;
-}
-
-/* mgsl_ioctl() Service an IOCTL request
- *
- * Arguments:
- *
- * tty pointer to tty instance data
- * file pointer to associated file object for device
- * cmd IOCTL command code
- * arg command argument/context
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_ioctl(struct tty_struct *tty, struct file * file,
- unsigned int cmd, unsigned long arg)
-{
- struct mgsl_struct * info = tty->driver_data;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_ioctl %s cmd=%08X\n", __FILE__,__LINE__,
- info->device_name, cmd );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_ioctl"))
- return -ENODEV;
-
- if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
- (cmd != TIOCMIWAIT)) {
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
- }
-
- return mgsl_ioctl_common(info, cmd, arg);
-}
-
-static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
-
- switch (cmd) {
- case MGSL_IOCGPARAMS:
- return mgsl_get_params(info, argp);
- case MGSL_IOCSPARAMS:
- return mgsl_set_params(info, argp);
- case MGSL_IOCGTXIDLE:
- return mgsl_get_txidle(info, argp);
- case MGSL_IOCSTXIDLE:
- return mgsl_set_txidle(info,(int)arg);
- case MGSL_IOCTXENABLE:
- return mgsl_txenable(info,(int)arg);
- case MGSL_IOCRXENABLE:
- return mgsl_rxenable(info,(int)arg);
- case MGSL_IOCTXABORT:
- return mgsl_txabort(info);
- case MGSL_IOCGSTATS:
- return mgsl_get_stats(info, argp);
- case MGSL_IOCWAITEVENT:
- return mgsl_wait_event(info, argp);
- case MGSL_IOCLOOPTXDONE:
- return mgsl_loopmode_send_done(info);
- /* Wait for modem input (DCD,RI,DSR,CTS) change
- * as specified by mask in arg (TIOCM_RNG/DSR/CD/CTS)
- */
- case TIOCMIWAIT:
- return modem_input_wait(info,(int)arg);
-
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-/* mgsl_set_termios()
- *
- * Set new termios settings
- *
- * Arguments:
- *
- * tty pointer to tty structure
- * termios pointer to buffer to hold returned old termios
- *
- * Return Value: None
- */
-static void mgsl_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct mgsl_struct *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_set_termios %s\n", __FILE__,__LINE__,
- tty->driver->name );
-
- mgsl_change_params(info);
-
- /* Handle transition to B0 status */
- if (old_termios->c_cflag & CBAUD &&
- !(tty->termios->c_cflag & CBAUD)) {
- info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-
- /* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) &&
- tty->termios->c_cflag & CBAUD) {
- info->serial_signals |= SerialSignal_DTR;
- if (!(tty->termios->c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &tty->flags)) {
- info->serial_signals |= SerialSignal_RTS;
- }
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
-
- /* Handle turning off CRTSCTS */
- if (old_termios->c_cflag & CRTSCTS &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- mgsl_start(tty);
- }
-
-} /* end of mgsl_set_termios() */
-
-/* mgsl_close()
- *
- * Called when port is closed. Wait for remaining data to be
- * sent. Disable port and free resources.
- *
- * Arguments:
- *
- * tty pointer to open tty structure
- * filp pointer to open file object
- *
- * Return Value: None
- */
-static void mgsl_close(struct tty_struct *tty, struct file * filp)
-{
- struct mgsl_struct * info = tty->driver_data;
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_close"))
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
- __FILE__,__LINE__, info->device_name, info->port.count);
-
- if (tty_port_close_start(&info->port, tty, filp) == 0)
- goto cleanup;
-
- mutex_lock(&info->port.mutex);
- if (info->port.flags & ASYNC_INITIALIZED)
- mgsl_wait_until_sent(tty, info->timeout);
- mgsl_flush_buffer(tty);
- tty_ldisc_flush(tty);
- shutdown(info);
- mutex_unlock(&info->port.mutex);
-
- tty_port_close_end(&info->port, tty);
- info->port.tty = NULL;
-cleanup:
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
- tty->driver->name, info->port.count);
-
-} /* end of mgsl_close() */
-
-/* mgsl_wait_until_sent()
- *
- * Wait until the transmitter is empty.
- *
- * Arguments:
- *
- * tty pointer to tty info structure
- * timeout time to wait for send completion
- *
- * Return Value: None
- */
-static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout)
-{
- struct mgsl_struct * info = tty->driver_data;
- unsigned long orig_jiffies, char_time;
-
- if (!info )
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_wait_until_sent(%s) entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent"))
- return;
-
- if (!(info->port.flags & ASYNC_INITIALIZED))
- goto exit;
-
- orig_jiffies = jiffies;
-
- /* Set check interval to 1/5 of estimated time to
- * send a character, and make it at least 1. The check
- * interval should also be less than the timeout.
- * Note: use tight timings here to satisfy the NIST-PCTS.
- */
-
- if ( info->params.data_rate ) {
- char_time = info->timeout/(32 * 5);
- if (!char_time)
- char_time++;
- } else
- char_time = 1;
-
- if (timeout)
- char_time = min_t(unsigned long, char_time, timeout);
-
- if ( info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ) {
- while (info->tx_active) {
- msleep_interruptible(jiffies_to_msecs(char_time));
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
- } else {
- while (!(usc_InReg(info,TCSR) & TXSTATUS_ALL_SENT) &&
- info->tx_enabled) {
- msleep_interruptible(jiffies_to_msecs(char_time));
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
- }
-
-exit:
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_wait_until_sent(%s) exit\n",
- __FILE__,__LINE__, info->device_name );
-
-} /* end of mgsl_wait_until_sent() */
-
-/* mgsl_hangup()
- *
- * Called by tty_hangup() when a hangup is signaled.
- * This is the same as to closing all open files for the port.
- *
- * Arguments: tty pointer to associated tty object
- * Return Value: None
- */
-static void mgsl_hangup(struct tty_struct *tty)
-{
- struct mgsl_struct * info = tty->driver_data;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_hangup(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- if (mgsl_paranoia_check(info, tty->name, "mgsl_hangup"))
- return;
-
- mgsl_flush_buffer(tty);
- shutdown(info);
-
- info->port.count = 0;
- info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
- info->port.tty = NULL;
-
- wake_up_interruptible(&info->port.open_wait);
-
-} /* end of mgsl_hangup() */
-
-/*
- * carrier_raised()
- *
- * Return true if carrier is raised
- */
-
-static int carrier_raised(struct tty_port *port)
-{
- unsigned long flags;
- struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);
-
- spin_lock_irqsave(&info->irq_spinlock, flags);
- usc_get_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock, flags);
- return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
- struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (on)
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- else
- info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-
-/* block_til_ready()
- *
- * Block the current process until the specified port
- * is ready to be opened.
- *
- * Arguments:
- *
- * tty pointer to tty info structure
- * filp pointer to open file object
- * info pointer to device instance data
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int block_til_ready(struct tty_struct *tty, struct file * filp,
- struct mgsl_struct *info)
-{
- DECLARE_WAITQUEUE(wait, current);
- int retval;
- bool do_clocal = false;
- bool extra_count = false;
- unsigned long flags;
- int dcd;
- struct tty_port *port = &info->port;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):block_til_ready on %s\n",
- __FILE__,__LINE__, tty->driver->name );
-
- if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
- /* nonblock mode is set or port is not enabled */
- port->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- if (tty->termios->c_cflag & CLOCAL)
- do_clocal = true;
-
- /* Wait for carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
- * mgsl_close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
-
- retval = 0;
- add_wait_queue(&port->open_wait, &wait);
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):block_til_ready before block on %s count=%d\n",
- __FILE__,__LINE__, tty->driver->name, port->count );
-
- spin_lock_irqsave(&info->irq_spinlock, flags);
- if (!tty_hung_up_p(filp)) {
- extra_count = true;
- port->count--;
- }
- spin_unlock_irqrestore(&info->irq_spinlock, flags);
- port->blocked_open++;
-
- while (1) {
- if (tty->termios->c_cflag & CBAUD)
- tty_port_raise_dtr_rts(port);
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
- retval = (port->flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS;
- break;
- }
-
- dcd = tty_port_carrier_raised(&info->port);
-
- if (!(port->flags & ASYNC_CLOSING) && (do_clocal || dcd))
- break;
-
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):block_til_ready blocking on %s count=%d\n",
- __FILE__,__LINE__, tty->driver->name, port->count );
-
- tty_unlock();
- schedule();
- tty_lock();
- }
-
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
-
- /* FIXME: Racy on hangup during close wait */
- if (extra_count)
- port->count++;
- port->blocked_open--;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
- __FILE__,__LINE__, tty->driver->name, port->count );
-
- if (!retval)
- port->flags |= ASYNC_NORMAL_ACTIVE;
-
- return retval;
-
-} /* end of block_til_ready() */
-
-/* mgsl_open()
- *
- * Called when a port is opened. Init and enable port.
- * Perform serial-specific initialization for the tty structure.
- *
- * Arguments: tty pointer to tty info structure
- * filp associated file pointer
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int mgsl_open(struct tty_struct *tty, struct file * filp)
-{
- struct mgsl_struct *info;
- int retval, line;
- unsigned long flags;
-
- /* verify range of specified line number */
- line = tty->index;
- if ((line < 0) || (line >= mgsl_device_count)) {
- printk("%s(%d):mgsl_open with invalid line #%d.\n",
- __FILE__,__LINE__,line);
- return -ENODEV;
- }
-
- /* find the info structure for the specified line */
- info = mgsl_device_list;
- while(info && info->line != line)
- info = info->next_device;
- if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))
- return -ENODEV;
-
- tty->driver_data = info;
- info->port.tty = tty;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
- __FILE__,__LINE__,tty->driver->name, info->port.count);
-
- /* If port is closing, signal caller to try again */
- if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
- if (info->port.flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->port.close_wait);
- retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS);
- goto cleanup;
- }
-
- info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
- spin_lock_irqsave(&info->netlock, flags);
- if (info->netcount) {
- retval = -EBUSY;
- spin_unlock_irqrestore(&info->netlock, flags);
- goto cleanup;
- }
- info->port.count++;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- if (info->port.count == 1) {
- /* 1st open on this device, init hardware */
- retval = startup(info);
- if (retval < 0)
- goto cleanup;
- }
-
- retval = block_til_ready(tty, filp, info);
- if (retval) {
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):block_til_ready(%s) returned %d\n",
- __FILE__,__LINE__, info->device_name, retval);
- goto cleanup;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):mgsl_open(%s) success\n",
- __FILE__,__LINE__, info->device_name);
- retval = 0;
-
-cleanup:
- if (retval) {
- if (tty->count == 1)
- info->port.tty = NULL; /* tty layer will release tty struct */
- if(info->port.count)
- info->port.count--;
- }
-
- return retval;
-
-} /* end of mgsl_open() */
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, struct mgsl_struct *info)
-{
- char stat_buf[30];
- unsigned long flags;
-
- if (info->bus_type == MGSL_BUS_TYPE_PCI) {
- seq_printf(m, "%s:PCI io:%04X irq:%d mem:%08X lcr:%08X",
- info->device_name, info->io_base, info->irq_level,
- info->phys_memory_base, info->phys_lcr_base);
- } else {
- seq_printf(m, "%s:(E)ISA io:%04X irq:%d dma:%d",
- info->device_name, info->io_base,
- info->irq_level, info->dma_level);
- }
-
- /* output current serial signal states */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_get_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- stat_buf[0] = 0;
- stat_buf[1] = 0;
- if (info->serial_signals & SerialSignal_RTS)
- strcat(stat_buf, "|RTS");
- if (info->serial_signals & SerialSignal_CTS)
- strcat(stat_buf, "|CTS");
- if (info->serial_signals & SerialSignal_DTR)
- strcat(stat_buf, "|DTR");
- if (info->serial_signals & SerialSignal_DSR)
- strcat(stat_buf, "|DSR");
- if (info->serial_signals & SerialSignal_DCD)
- strcat(stat_buf, "|CD");
- if (info->serial_signals & SerialSignal_RI)
- strcat(stat_buf, "|RI");
-
- if (info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ) {
- seq_printf(m, " HDLC txok:%d rxok:%d",
- info->icount.txok, info->icount.rxok);
- if (info->icount.txunder)
- seq_printf(m, " txunder:%d", info->icount.txunder);
- if (info->icount.txabort)
- seq_printf(m, " txabort:%d", info->icount.txabort);
- if (info->icount.rxshort)
- seq_printf(m, " rxshort:%d", info->icount.rxshort);
- if (info->icount.rxlong)
- seq_printf(m, " rxlong:%d", info->icount.rxlong);
- if (info->icount.rxover)
- seq_printf(m, " rxover:%d", info->icount.rxover);
- if (info->icount.rxcrc)
- seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
- } else {
- seq_printf(m, " ASYNC tx:%d rx:%d",
- info->icount.tx, info->icount.rx);
- if (info->icount.frame)
- seq_printf(m, " fe:%d", info->icount.frame);
- if (info->icount.parity)
- seq_printf(m, " pe:%d", info->icount.parity);
- if (info->icount.brk)
- seq_printf(m, " brk:%d", info->icount.brk);
- if (info->icount.overrun)
- seq_printf(m, " oe:%d", info->icount.overrun);
- }
-
- /* Append serial signal status to end */
- seq_printf(m, " %s\n", stat_buf+1);
-
- seq_printf(m, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
- info->tx_active,info->bh_requested,info->bh_running,
- info->pending_bh);
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- {
- u16 Tcsr = usc_InReg( info, TCSR );
- u16 Tdmr = usc_InDmaReg( info, TDMR );
- u16 Ticr = usc_InReg( info, TICR );
- u16 Rscr = usc_InReg( info, RCSR );
- u16 Rdmr = usc_InDmaReg( info, RDMR );
- u16 Ricr = usc_InReg( info, RICR );
- u16 Icr = usc_InReg( info, ICR );
- u16 Dccr = usc_InReg( info, DCCR );
- u16 Tmr = usc_InReg( info, TMR );
- u16 Tccr = usc_InReg( info, TCCR );
- u16 Ccar = inw( info->io_base + CCAR );
- seq_printf(m, "tcsr=%04X tdmr=%04X ticr=%04X rcsr=%04X rdmr=%04X\n"
- "ricr=%04X icr =%04X dccr=%04X tmr=%04X tccr=%04X ccar=%04X\n",
- Tcsr,Tdmr,Ticr,Rscr,Rdmr,Ricr,Icr,Dccr,Tmr,Tccr,Ccar );
- }
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-}
-
-/* Called to print information about devices */
-static int mgsl_proc_show(struct seq_file *m, void *v)
-{
- struct mgsl_struct *info;
-
- seq_printf(m, "synclink driver:%s\n", driver_version);
-
- info = mgsl_device_list;
- while( info ) {
- line_info(m, info);
- info = info->next_device;
- }
- return 0;
-}
-
-static int mgsl_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, mgsl_proc_show, NULL);
-}
-
-static const struct file_operations mgsl_proc_fops = {
- .owner = THIS_MODULE,
- .open = mgsl_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/* mgsl_allocate_dma_buffers()
- *
- * Allocate and format DMA buffers (ISA adapter)
- * or format shared memory buffers (PCI adapter).
- *
- * Arguments: info pointer to device instance data
- * Return Value: 0 if success, otherwise error
- */
-static int mgsl_allocate_dma_buffers(struct mgsl_struct *info)
-{
- unsigned short BuffersPerFrame;
-
- info->last_mem_alloc = 0;
-
- /* Calculate the number of DMA buffers necessary to hold the */
- /* largest allowable frame size. Note: If the max frame size is */
- /* not an even multiple of the DMA buffer size then we need to */
- /* round the buffer count per frame up one. */
-
- BuffersPerFrame = (unsigned short)(info->max_frame_size/DMABUFFERSIZE);
- if ( info->max_frame_size % DMABUFFERSIZE )
- BuffersPerFrame++;
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- /*
- * The PCI adapter has 256KBytes of shared memory to use.
- * This is 64 PAGE_SIZE buffers.
- *
- * The first page is used for padding at this time so the
- * buffer list does not begin at offset 0 of the PCI
- * adapter's shared memory.
- *
- * The 2nd page is used for the buffer list. A 4K buffer
- * list can hold 128 DMA_BUFFER structures at 32 bytes
- * each.
- *
- * This leaves 62 4K pages.
- *
- * The next N pages are used for transmit frame(s). We
- * reserve enough 4K page blocks to hold the required
- * number of transmit dma buffers (num_tx_dma_buffers),
- * each of MaxFrameSize size.
- *
- * Of the remaining pages (62-N), determine how many can
- * be used to receive full MaxFrameSize inbound frames
- */
- info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame;
- info->rx_buffer_count = 62 - info->tx_buffer_count;
- } else {
- /* Calculate the number of PAGE_SIZE buffers needed for */
- /* receive and transmit DMA buffers. */
-
-
- /* Calculate the number of DMA buffers necessary to */
- /* hold 7 max size receive frames and one max size transmit frame. */
- /* The receive buffer count is bumped by one so we avoid an */
- /* End of List condition if all receive buffers are used when */
- /* using linked list DMA buffers. */
-
- info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame;
- info->rx_buffer_count = (BuffersPerFrame * MAXRXFRAMES) + 6;
-
- /*
- * limit total TxBuffers & RxBuffers to 62 4K total
- * (ala PCI Allocation)
- */
-
- if ( (info->tx_buffer_count + info->rx_buffer_count) > 62 )
- info->rx_buffer_count = 62 - info->tx_buffer_count;
-
- }
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s(%d):Allocating %d TX and %d RX DMA buffers.\n",
- __FILE__,__LINE__, info->tx_buffer_count,info->rx_buffer_count);
-
- if ( mgsl_alloc_buffer_list_memory( info ) < 0 ||
- mgsl_alloc_frame_memory(info, info->rx_buffer_list, info->rx_buffer_count) < 0 ||
- mgsl_alloc_frame_memory(info, info->tx_buffer_list, info->tx_buffer_count) < 0 ||
- mgsl_alloc_intermediate_rxbuffer_memory(info) < 0 ||
- mgsl_alloc_intermediate_txbuffer_memory(info) < 0 ) {
- printk("%s(%d):Can't allocate DMA buffer memory\n",__FILE__,__LINE__);
- return -ENOMEM;
- }
-
- mgsl_reset_rx_dma_buffers( info );
- mgsl_reset_tx_dma_buffers( info );
-
- return 0;
-
-} /* end of mgsl_allocate_dma_buffers() */
-
-/*
- * mgsl_alloc_buffer_list_memory()
- *
- * Allocate a common DMA buffer for use as the
- * receive and transmit buffer lists.
- *
- * A buffer list is a set of buffer entries where each entry contains
- * a pointer to an actual buffer and a pointer to the next buffer entry
- * (plus some other info about the buffer).
- *
- * The buffer entries for a list are built to form a circular list so
- * that when the entire list has been traversed you start back at the
- * beginning.
- *
- * This function allocates memory for just the buffer entries.
- * The links (pointer to next entry) are filled in with the physical
- * address of the next entry so the adapter can navigate the list
- * using bus master DMA. The pointers to the actual buffers are filled
- * out later when the actual buffers are allocated.
- *
- * Arguments: info pointer to device instance data
- * Return Value: 0 if success, otherwise error
- */
-static int mgsl_alloc_buffer_list_memory( struct mgsl_struct *info )
-{
- unsigned int i;
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- /* PCI adapter uses shared memory. */
- info->buffer_list = info->memory_base + info->last_mem_alloc;
- info->buffer_list_phys = info->last_mem_alloc;
- info->last_mem_alloc += BUFFERLISTSIZE;
- } else {
- /* ISA adapter uses system memory. */
- /* The buffer lists are allocated as a common buffer that both */
- /* the processor and adapter can access. This allows the driver to */
- /* inspect portions of the buffer while other portions are being */
- /* updated by the adapter using Bus Master DMA. */
-
- info->buffer_list = dma_alloc_coherent(NULL, BUFFERLISTSIZE, &info->buffer_list_dma_addr, GFP_KERNEL);
- if (info->buffer_list == NULL)
- return -ENOMEM;
- info->buffer_list_phys = (u32)(info->buffer_list_dma_addr);
- }
-
- /* We got the memory for the buffer entry lists. */
- /* Initialize the memory block to all zeros. */
- memset( info->buffer_list, 0, BUFFERLISTSIZE );
-
- /* Save virtual address pointers to the receive and */
- /* transmit buffer lists. (Receive 1st). These pointers will */
- /* be used by the processor to access the lists. */
- info->rx_buffer_list = (DMABUFFERENTRY *)info->buffer_list;
- info->tx_buffer_list = (DMABUFFERENTRY *)info->buffer_list;
- info->tx_buffer_list += info->rx_buffer_count;
-
- /*
- * Build the links for the buffer entry lists such that
- * two circular lists are built. (Transmit and Receive).
- *
- * Note: the links are physical addresses
- * which are read by the adapter to determine the next
- * buffer entry to use.
- */
-
- for ( i = 0; i < info->rx_buffer_count; i++ ) {
- /* calculate and store physical address of this buffer entry */
- info->rx_buffer_list[i].phys_entry =
- info->buffer_list_phys + (i * sizeof(DMABUFFERENTRY));
-
- /* calculate and store physical address of */
- /* next entry in cirular list of entries */
-
- info->rx_buffer_list[i].link = info->buffer_list_phys;
-
- if ( i < info->rx_buffer_count - 1 )
- info->rx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY);
- }
-
- for ( i = 0; i < info->tx_buffer_count; i++ ) {
- /* calculate and store physical address of this buffer entry */
- info->tx_buffer_list[i].phys_entry = info->buffer_list_phys +
- ((info->rx_buffer_count + i) * sizeof(DMABUFFERENTRY));
-
- /* calculate and store physical address of */
- /* next entry in cirular list of entries */
-
- info->tx_buffer_list[i].link = info->buffer_list_phys +
- info->rx_buffer_count * sizeof(DMABUFFERENTRY);
-
- if ( i < info->tx_buffer_count - 1 )
- info->tx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY);
- }
-
- return 0;
-
-} /* end of mgsl_alloc_buffer_list_memory() */
-
-/* Free DMA buffers allocated for use as the
- * receive and transmit buffer lists.
- * Warning:
- *
- * The data transfer buffers associated with the buffer list
- * MUST be freed before freeing the buffer list itself because
- * the buffer list contains the information necessary to free
- * the individual buffers!
- */
-static void mgsl_free_buffer_list_memory( struct mgsl_struct *info )
-{
- if (info->buffer_list && info->bus_type != MGSL_BUS_TYPE_PCI)
- dma_free_coherent(NULL, BUFFERLISTSIZE, info->buffer_list, info->buffer_list_dma_addr);
-
- info->buffer_list = NULL;
- info->rx_buffer_list = NULL;
- info->tx_buffer_list = NULL;
-
-} /* end of mgsl_free_buffer_list_memory() */
-
-/*
- * mgsl_alloc_frame_memory()
- *
- * Allocate the frame DMA buffers used by the specified buffer list.
- * Each DMA buffer will be one memory page in size. This is necessary
- * because memory can fragment enough that it may be impossible
- * contiguous pages.
- *
- * Arguments:
- *
- * info pointer to device instance data
- * BufferList pointer to list of buffer entries
- * Buffercount count of buffer entries in buffer list
- *
- * Return Value: 0 if success, otherwise -ENOMEM
- */
-static int mgsl_alloc_frame_memory(struct mgsl_struct *info,DMABUFFERENTRY *BufferList,int Buffercount)
-{
- int i;
- u32 phys_addr;
-
- /* Allocate page sized buffers for the receive buffer list */
-
- for ( i = 0; i < Buffercount; i++ ) {
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- /* PCI adapter uses shared memory buffers. */
- BufferList[i].virt_addr = info->memory_base + info->last_mem_alloc;
- phys_addr = info->last_mem_alloc;
- info->last_mem_alloc += DMABUFFERSIZE;
- } else {
- /* ISA adapter uses system memory. */
- BufferList[i].virt_addr = dma_alloc_coherent(NULL, DMABUFFERSIZE, &BufferList[i].dma_addr, GFP_KERNEL);
- if (BufferList[i].virt_addr == NULL)
- return -ENOMEM;
- phys_addr = (u32)(BufferList[i].dma_addr);
- }
- BufferList[i].phys_addr = phys_addr;
- }
-
- return 0;
-
-} /* end of mgsl_alloc_frame_memory() */
-
-/*
- * mgsl_free_frame_memory()
- *
- * Free the buffers associated with
- * each buffer entry of a buffer list.
- *
- * Arguments:
- *
- * info pointer to device instance data
- * BufferList pointer to list of buffer entries
- * Buffercount count of buffer entries in buffer list
- *
- * Return Value: None
- */
-static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList, int Buffercount)
-{
- int i;
-
- if ( BufferList ) {
- for ( i = 0 ; i < Buffercount ; i++ ) {
- if ( BufferList[i].virt_addr ) {
- if ( info->bus_type != MGSL_BUS_TYPE_PCI )
- dma_free_coherent(NULL, DMABUFFERSIZE, BufferList[i].virt_addr, BufferList[i].dma_addr);
- BufferList[i].virt_addr = NULL;
- }
- }
- }
-
-} /* end of mgsl_free_frame_memory() */
-
-/* mgsl_free_dma_buffers()
- *
- * Free DMA buffers
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_free_dma_buffers( struct mgsl_struct *info )
-{
- mgsl_free_frame_memory( info, info->rx_buffer_list, info->rx_buffer_count );
- mgsl_free_frame_memory( info, info->tx_buffer_list, info->tx_buffer_count );
- mgsl_free_buffer_list_memory( info );
-
-} /* end of mgsl_free_dma_buffers() */
-
-
-/*
- * mgsl_alloc_intermediate_rxbuffer_memory()
- *
- * Allocate a buffer large enough to hold max_frame_size. This buffer
- * is used to pass an assembled frame to the line discipline.
- *
- * Arguments:
- *
- * info pointer to device instance data
- *
- * Return Value: 0 if success, otherwise -ENOMEM
- */
-static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info)
-{
- info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA);
- if ( info->intermediate_rxbuffer == NULL )
- return -ENOMEM;
-
- return 0;
-
-} /* end of mgsl_alloc_intermediate_rxbuffer_memory() */
-
-/*
- * mgsl_free_intermediate_rxbuffer_memory()
- *
- *
- * Arguments:
- *
- * info pointer to device instance data
- *
- * Return Value: None
- */
-static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info)
-{
- kfree(info->intermediate_rxbuffer);
- info->intermediate_rxbuffer = NULL;
-
-} /* end of mgsl_free_intermediate_rxbuffer_memory() */
-
-/*
- * mgsl_alloc_intermediate_txbuffer_memory()
- *
- * Allocate intermdiate transmit buffer(s) large enough to hold max_frame_size.
- * This buffer is used to load transmit frames into the adapter's dma transfer
- * buffers when there is sufficient space.
- *
- * Arguments:
- *
- * info pointer to device instance data
- *
- * Return Value: 0 if success, otherwise -ENOMEM
- */
-static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info)
-{
- int i;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s %s(%d) allocating %d tx holding buffers\n",
- info->device_name, __FILE__,__LINE__,info->num_tx_holding_buffers);
-
- memset(info->tx_holding_buffers,0,sizeof(info->tx_holding_buffers));
-
- for ( i=0; i<info->num_tx_holding_buffers; ++i) {
- info->tx_holding_buffers[i].buffer =
- kmalloc(info->max_frame_size, GFP_KERNEL);
- if (info->tx_holding_buffers[i].buffer == NULL) {
- for (--i; i >= 0; i--) {
- kfree(info->tx_holding_buffers[i].buffer);
- info->tx_holding_buffers[i].buffer = NULL;
- }
- return -ENOMEM;
- }
- }
-
- return 0;
-
-} /* end of mgsl_alloc_intermediate_txbuffer_memory() */
-
-/*
- * mgsl_free_intermediate_txbuffer_memory()
- *
- *
- * Arguments:
- *
- * info pointer to device instance data
- *
- * Return Value: None
- */
-static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info)
-{
- int i;
-
- for ( i=0; i<info->num_tx_holding_buffers; ++i ) {
- kfree(info->tx_holding_buffers[i].buffer);
- info->tx_holding_buffers[i].buffer = NULL;
- }
-
- info->get_tx_holding_index = 0;
- info->put_tx_holding_index = 0;
- info->tx_holding_count = 0;
-
-} /* end of mgsl_free_intermediate_txbuffer_memory() */
-
-
-/*
- * load_next_tx_holding_buffer()
- *
- * attempts to load the next buffered tx request into the
- * tx dma buffers
- *
- * Arguments:
- *
- * info pointer to device instance data
- *
- * Return Value: true if next buffered tx request loaded
- * into adapter's tx dma buffer,
- * false otherwise
- */
-static bool load_next_tx_holding_buffer(struct mgsl_struct *info)
-{
- bool ret = false;
-
- if ( info->tx_holding_count ) {
- /* determine if we have enough tx dma buffers
- * to accommodate the next tx frame
- */
- struct tx_holding_buffer *ptx =
- &info->tx_holding_buffers[info->get_tx_holding_index];
- int num_free = num_free_tx_dma_buffers(info);
- int num_needed = ptx->buffer_size / DMABUFFERSIZE;
- if ( ptx->buffer_size % DMABUFFERSIZE )
- ++num_needed;
-
- if (num_needed <= num_free) {
- info->xmit_cnt = ptx->buffer_size;
- mgsl_load_tx_dma_buffer(info,ptx->buffer,ptx->buffer_size);
-
- --info->tx_holding_count;
- if ( ++info->get_tx_holding_index >= info->num_tx_holding_buffers)
- info->get_tx_holding_index=0;
-
- /* restart transmit timer */
- mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(5000));
-
- ret = true;
- }
- }
-
- return ret;
-}
-
-/*
- * save_tx_buffer_request()
- *
- * attempt to store transmit frame request for later transmission
- *
- * Arguments:
- *
- * info pointer to device instance data
- * Buffer pointer to buffer containing frame to load
- * BufferSize size in bytes of frame in Buffer
- *
- * Return Value: 1 if able to store, 0 otherwise
- */
-static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferSize)
-{
- struct tx_holding_buffer *ptx;
-
- if ( info->tx_holding_count >= info->num_tx_holding_buffers ) {
- return 0; /* all buffers in use */
- }
-
- ptx = &info->tx_holding_buffers[info->put_tx_holding_index];
- ptx->buffer_size = BufferSize;
- memcpy( ptx->buffer, Buffer, BufferSize);
-
- ++info->tx_holding_count;
- if ( ++info->put_tx_holding_index >= info->num_tx_holding_buffers)
- info->put_tx_holding_index=0;
-
- return 1;
-}
-
-static int mgsl_claim_resources(struct mgsl_struct *info)
-{
- if (request_region(info->io_base,info->io_addr_size,"synclink") == NULL) {
- printk( "%s(%d):I/O address conflict on device %s Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->io_base);
- return -ENODEV;
- }
- info->io_addr_requested = true;
-
- if ( request_irq(info->irq_level,mgsl_interrupt,info->irq_flags,
- info->device_name, info ) < 0 ) {
- printk( "%s(%d):Cant request interrupt on device %s IRQ=%d\n",
- __FILE__,__LINE__,info->device_name, info->irq_level );
- goto errout;
- }
- info->irq_requested = true;
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- if (request_mem_region(info->phys_memory_base,0x40000,"synclink") == NULL) {
- printk( "%s(%d):mem addr conflict device %s Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_memory_base);
- goto errout;
- }
- info->shared_mem_requested = true;
- if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclink") == NULL) {
- printk( "%s(%d):lcr mem addr conflict device %s Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_lcr_base + info->lcr_offset);
- goto errout;
- }
- info->lcr_mem_requested = true;
-
- info->memory_base = ioremap_nocache(info->phys_memory_base,
- 0x40000);
- if (!info->memory_base) {
- printk( "%s(%d):Cant map shared memory on device %s MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_memory_base );
- goto errout;
- }
-
- if ( !mgsl_memory_test(info) ) {
- printk( "%s(%d):Failed shared memory test %s MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_memory_base );
- goto errout;
- }
-
- info->lcr_base = ioremap_nocache(info->phys_lcr_base,
- PAGE_SIZE);
- if (!info->lcr_base) {
- printk( "%s(%d):Cant map LCR memory on device %s MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_lcr_base );
- goto errout;
- }
- info->lcr_base += info->lcr_offset;
-
- } else {
- /* claim DMA channel */
-
- if (request_dma(info->dma_level,info->device_name) < 0){
- printk( "%s(%d):Cant request DMA channel on device %s DMA=%d\n",
- __FILE__,__LINE__,info->device_name, info->dma_level );
- mgsl_release_resources( info );
- return -ENODEV;
- }
- info->dma_requested = true;
-
- /* ISA adapter uses bus master DMA */
- set_dma_mode(info->dma_level,DMA_MODE_CASCADE);
- enable_dma(info->dma_level);
- }
-
- if ( mgsl_allocate_dma_buffers(info) < 0 ) {
- printk( "%s(%d):Cant allocate DMA buffers on device %s DMA=%d\n",
- __FILE__,__LINE__,info->device_name, info->dma_level );
- goto errout;
- }
-
- return 0;
-errout:
- mgsl_release_resources(info);
- return -ENODEV;
-
-} /* end of mgsl_claim_resources() */
-
-static void mgsl_release_resources(struct mgsl_struct *info)
-{
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_release_resources(%s) entry\n",
- __FILE__,__LINE__,info->device_name );
-
- if ( info->irq_requested ) {
- free_irq(info->irq_level, info);
- info->irq_requested = false;
- }
- if ( info->dma_requested ) {
- disable_dma(info->dma_level);
- free_dma(info->dma_level);
- info->dma_requested = false;
- }
- mgsl_free_dma_buffers(info);
- mgsl_free_intermediate_rxbuffer_memory(info);
- mgsl_free_intermediate_txbuffer_memory(info);
-
- if ( info->io_addr_requested ) {
- release_region(info->io_base,info->io_addr_size);
- info->io_addr_requested = false;
- }
- if ( info->shared_mem_requested ) {
- release_mem_region(info->phys_memory_base,0x40000);
- info->shared_mem_requested = false;
- }
- if ( info->lcr_mem_requested ) {
- release_mem_region(info->phys_lcr_base + info->lcr_offset,128);
- info->lcr_mem_requested = false;
- }
- if (info->memory_base){
- iounmap(info->memory_base);
- info->memory_base = NULL;
- }
- if (info->lcr_base){
- iounmap(info->lcr_base - info->lcr_offset);
- info->lcr_base = NULL;
- }
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_release_resources(%s) exit\n",
- __FILE__,__LINE__,info->device_name );
-
-} /* end of mgsl_release_resources() */
-
-/* mgsl_add_device()
- *
- * Add the specified device instance data structure to the
- * global linked list of devices and increment the device count.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_add_device( struct mgsl_struct *info )
-{
- info->next_device = NULL;
- info->line = mgsl_device_count;
- sprintf(info->device_name,"ttySL%d",info->line);
-
- if (info->line < MAX_TOTAL_DEVICES) {
- if (maxframe[info->line])
- info->max_frame_size = maxframe[info->line];
-
- if (txdmabufs[info->line]) {
- info->num_tx_dma_buffers = txdmabufs[info->line];
- if (info->num_tx_dma_buffers < 1)
- info->num_tx_dma_buffers = 1;
- }
-
- if (txholdbufs[info->line]) {
- info->num_tx_holding_buffers = txholdbufs[info->line];
- if (info->num_tx_holding_buffers < 1)
- info->num_tx_holding_buffers = 1;
- else if (info->num_tx_holding_buffers > MAX_TX_HOLDING_BUFFERS)
- info->num_tx_holding_buffers = MAX_TX_HOLDING_BUFFERS;
- }
- }
-
- mgsl_device_count++;
-
- if ( !mgsl_device_list )
- mgsl_device_list = info;
- else {
- struct mgsl_struct *current_dev = mgsl_device_list;
- while( current_dev->next_device )
- current_dev = current_dev->next_device;
- current_dev->next_device = info;
- }
-
- if ( info->max_frame_size < 4096 )
- info->max_frame_size = 4096;
- else if ( info->max_frame_size > 65535 )
- info->max_frame_size = 65535;
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- printk( "SyncLink PCI v%d %s: IO=%04X IRQ=%d Mem=%08X,%08X MaxFrameSize=%u\n",
- info->hw_version + 1, info->device_name, info->io_base, info->irq_level,
- info->phys_memory_base, info->phys_lcr_base,
- info->max_frame_size );
- } else {
- printk( "SyncLink ISA %s: IO=%04X IRQ=%d DMA=%d MaxFrameSize=%u\n",
- info->device_name, info->io_base, info->irq_level, info->dma_level,
- info->max_frame_size );
- }
-
-#if SYNCLINK_GENERIC_HDLC
- hdlcdev_init(info);
-#endif
-
-} /* end of mgsl_add_device() */
-
-static const struct tty_port_operations mgsl_port_ops = {
- .carrier_raised = carrier_raised,
- .dtr_rts = dtr_rts,
-};
-
-
-/* mgsl_allocate_device()
- *
- * Allocate and initialize a device instance structure
- *
- * Arguments: none
- * Return Value: pointer to mgsl_struct if success, otherwise NULL
- */
-static struct mgsl_struct* mgsl_allocate_device(void)
-{
- struct mgsl_struct *info;
-
- info = kzalloc(sizeof(struct mgsl_struct),
- GFP_KERNEL);
-
- if (!info) {
- printk("Error can't allocate device instance data\n");
- } else {
- tty_port_init(&info->port);
- info->port.ops = &mgsl_port_ops;
- info->magic = MGSL_MAGIC;
- INIT_WORK(&info->task, mgsl_bh_handler);
- info->max_frame_size = 4096;
- info->port.close_delay = 5*HZ/10;
- info->port.closing_wait = 30*HZ;
- init_waitqueue_head(&info->status_event_wait_q);
- init_waitqueue_head(&info->event_wait_q);
- spin_lock_init(&info->irq_spinlock);
- spin_lock_init(&info->netlock);
- memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
- info->idle_mode = HDLC_TXIDLE_FLAGS;
- info->num_tx_dma_buffers = 1;
- info->num_tx_holding_buffers = 0;
- }
-
- return info;
-
-} /* end of mgsl_allocate_device()*/
-
-static const struct tty_operations mgsl_ops = {
- .open = mgsl_open,
- .close = mgsl_close,
- .write = mgsl_write,
- .put_char = mgsl_put_char,
- .flush_chars = mgsl_flush_chars,
- .write_room = mgsl_write_room,
- .chars_in_buffer = mgsl_chars_in_buffer,
- .flush_buffer = mgsl_flush_buffer,
- .ioctl = mgsl_ioctl,
- .throttle = mgsl_throttle,
- .unthrottle = mgsl_unthrottle,
- .send_xchar = mgsl_send_xchar,
- .break_ctl = mgsl_break,
- .wait_until_sent = mgsl_wait_until_sent,
- .set_termios = mgsl_set_termios,
- .stop = mgsl_stop,
- .start = mgsl_start,
- .hangup = mgsl_hangup,
- .tiocmget = tiocmget,
- .tiocmset = tiocmset,
- .get_icount = msgl_get_icount,
- .proc_fops = &mgsl_proc_fops,
-};
-
-/*
- * perform tty device initialization
- */
-static int mgsl_init_tty(void)
-{
- int rc;
-
- serial_driver = alloc_tty_driver(128);
- if (!serial_driver)
- return -ENOMEM;
-
- serial_driver->owner = THIS_MODULE;
- serial_driver->driver_name = "synclink";
- serial_driver->name = "ttySL";
- serial_driver->major = ttymajor;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->init_termios.c_ispeed = 9600;
- serial_driver->init_termios.c_ospeed = 9600;
- serial_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(serial_driver, &mgsl_ops);
- if ((rc = tty_register_driver(serial_driver)) < 0) {
- printk("%s(%d):Couldn't register serial driver\n",
- __FILE__,__LINE__);
- put_tty_driver(serial_driver);
- serial_driver = NULL;
- return rc;
- }
-
- printk("%s %s, tty major#%d\n",
- driver_name, driver_version,
- serial_driver->major);
- return 0;
-}
-
-/* enumerate user specified ISA adapters
- */
-static void mgsl_enum_isa_devices(void)
-{
- struct mgsl_struct *info;
- int i;
-
- /* Check for user specified ISA devices */
-
- for (i=0 ;(i < MAX_ISA_DEVICES) && io[i] && irq[i]; i++){
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("ISA device specified io=%04X,irq=%d,dma=%d\n",
- io[i], irq[i], dma[i] );
-
- info = mgsl_allocate_device();
- if ( !info ) {
- /* error allocating device instance data */
- if ( debug_level >= DEBUG_LEVEL_ERROR )
- printk( "can't allocate device instance data.\n");
- continue;
- }
-
- /* Copy user configuration info to device instance data */
- info->io_base = (unsigned int)io[i];
- info->irq_level = (unsigned int)irq[i];
- info->irq_level = irq_canonicalize(info->irq_level);
- info->dma_level = (unsigned int)dma[i];
- info->bus_type = MGSL_BUS_TYPE_ISA;
- info->io_addr_size = 16;
- info->irq_flags = 0;
-
- mgsl_add_device( info );
- }
-}
-
-static void synclink_cleanup(void)
-{
- int rc;
- struct mgsl_struct *info;
- struct mgsl_struct *tmp;
-
- printk("Unloading %s: %s\n", driver_name, driver_version);
-
- if (serial_driver) {
- if ((rc = tty_unregister_driver(serial_driver)))
- printk("%s(%d) failed to unregister tty driver err=%d\n",
- __FILE__,__LINE__,rc);
- put_tty_driver(serial_driver);
- }
-
- info = mgsl_device_list;
- while(info) {
-#if SYNCLINK_GENERIC_HDLC
- hdlcdev_exit(info);
-#endif
- mgsl_release_resources(info);
- tmp = info;
- info = info->next_device;
- kfree(tmp);
- }
-
- if (pci_registered)
- pci_unregister_driver(&synclink_pci_driver);
-}
-
-static int __init synclink_init(void)
-{
- int rc;
-
- if (break_on_load) {
- mgsl_get_text_ptr();
- BREAKPOINT();
- }
-
- printk("%s %s\n", driver_name, driver_version);
-
- mgsl_enum_isa_devices();
- if ((rc = pci_register_driver(&synclink_pci_driver)) < 0)
- printk("%s:failed to register PCI driver, error=%d\n",__FILE__,rc);
- else
- pci_registered = true;
-
- if ((rc = mgsl_init_tty()) < 0)
- goto error;
-
- return 0;
-
-error:
- synclink_cleanup();
- return rc;
-}
-
-static void __exit synclink_exit(void)
-{
- synclink_cleanup();
-}
-
-module_init(synclink_init);
-module_exit(synclink_exit);
-
-/*
- * usc_RTCmd()
- *
- * Issue a USC Receive/Transmit command to the
- * Channel Command/Address Register (CCAR).
- *
- * Notes:
- *
- * The command is encoded in the most significant 5 bits <15..11>
- * of the CCAR value. Bits <10..7> of the CCAR must be preserved
- * and Bits <6..0> must be written as zeros.
- *
- * Arguments:
- *
- * info pointer to device information structure
- * Cmd command mask (use symbolic macros)
- *
- * Return Value:
- *
- * None
- */
-static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd )
-{
- /* output command to CCAR in bits <15..11> */
- /* preserve bits <10..7>, bits <6..0> must be zero */
-
- outw( Cmd + info->loopback_bits, info->io_base + CCAR );
-
- /* Read to flush write to CCAR */
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- inw( info->io_base + CCAR );
-
-} /* end of usc_RTCmd() */
-
-/*
- * usc_DmaCmd()
- *
- * Issue a DMA command to the DMA Command/Address Register (DCAR).
- *
- * Arguments:
- *
- * info pointer to device information structure
- * Cmd DMA command mask (usc_DmaCmd_XX Macros)
- *
- * Return Value:
- *
- * None
- */
-static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd )
-{
- /* write command mask to DCAR */
- outw( Cmd + info->mbre_bit, info->io_base );
-
- /* Read to flush write to DCAR */
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- inw( info->io_base );
-
-} /* end of usc_DmaCmd() */
-
-/*
- * usc_OutDmaReg()
- *
- * Write a 16-bit value to a USC DMA register
- *
- * Arguments:
- *
- * info pointer to device info structure
- * RegAddr register address (number) for write
- * RegValue 16-bit value to write to register
- *
- * Return Value:
- *
- * None
- *
- */
-static void usc_OutDmaReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
-{
- /* Note: The DCAR is located at the adapter base address */
- /* Note: must preserve state of BIT8 in DCAR */
-
- outw( RegAddr + info->mbre_bit, info->io_base );
- outw( RegValue, info->io_base );
-
- /* Read to flush write to DCAR */
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- inw( info->io_base );
-
-} /* end of usc_OutDmaReg() */
-
-/*
- * usc_InDmaReg()
- *
- * Read a 16-bit value from a DMA register
- *
- * Arguments:
- *
- * info pointer to device info structure
- * RegAddr register address (number) to read from
- *
- * Return Value:
- *
- * The 16-bit value read from register
- *
- */
-static u16 usc_InDmaReg( struct mgsl_struct *info, u16 RegAddr )
-{
- /* Note: The DCAR is located at the adapter base address */
- /* Note: must preserve state of BIT8 in DCAR */
-
- outw( RegAddr + info->mbre_bit, info->io_base );
- return inw( info->io_base );
-
-} /* end of usc_InDmaReg() */
-
-/*
- *
- * usc_OutReg()
- *
- * Write a 16-bit value to a USC serial channel register
- *
- * Arguments:
- *
- * info pointer to device info structure
- * RegAddr register address (number) to write to
- * RegValue 16-bit value to write to register
- *
- * Return Value:
- *
- * None
- *
- */
-static void usc_OutReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )
-{
- outw( RegAddr + info->loopback_bits, info->io_base + CCAR );
- outw( RegValue, info->io_base + CCAR );
-
- /* Read to flush write to CCAR */
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- inw( info->io_base + CCAR );
-
-} /* end of usc_OutReg() */
-
-/*
- * usc_InReg()
- *
- * Reads a 16-bit value from a USC serial channel register
- *
- * Arguments:
- *
- * info pointer to device extension
- * RegAddr register address (number) to read from
- *
- * Return Value:
- *
- * 16-bit value read from register
- */
-static u16 usc_InReg( struct mgsl_struct *info, u16 RegAddr )
-{
- outw( RegAddr + info->loopback_bits, info->io_base + CCAR );
- return inw( info->io_base + CCAR );
-
-} /* end of usc_InReg() */
-
-/* usc_set_sdlc_mode()
- *
- * Set up the adapter for SDLC DMA communications.
- *
- * Arguments: info pointer to device instance data
- * Return Value: NONE
- */
-static void usc_set_sdlc_mode( struct mgsl_struct *info )
-{
- u16 RegValue;
- bool PreSL1660;
-
- /*
- * determine if the IUSC on the adapter is pre-SL1660. If
- * not, take advantage of the UnderWait feature of more
- * modern chips. If an underrun occurs and this bit is set,
- * the transmitter will idle the programmed idle pattern
- * until the driver has time to service the underrun. Otherwise,
- * the dma controller may get the cycles previously requested
- * and begin transmitting queued tx data.
- */
- usc_OutReg(info,TMCR,0x1f);
- RegValue=usc_InReg(info,TMDR);
- PreSL1660 = (RegValue == IUSC_PRE_SL1660);
-
- if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
- {
- /*
- ** Channel Mode Register (CMR)
- **
- ** <15..14> 10 Tx Sub Modes, Send Flag on Underrun
- ** <13> 0 0 = Transmit Disabled (initially)
- ** <12> 0 1 = Consecutive Idles share common 0
- ** <11..8> 1110 Transmitter Mode = HDLC/SDLC Loop
- ** <7..4> 0000 Rx Sub Modes, addr/ctrl field handling
- ** <3..0> 0110 Receiver Mode = HDLC/SDLC
- **
- ** 1000 1110 0000 0110 = 0x8e06
- */
- RegValue = 0x8e06;
-
- /*--------------------------------------------------
- * ignore user options for UnderRun Actions and
- * preambles
- *--------------------------------------------------*/
- }
- else
- {
- /* Channel mode Register (CMR)
- *
- * <15..14> 00 Tx Sub modes, Underrun Action
- * <13> 0 1 = Send Preamble before opening flag
- * <12> 0 1 = Consecutive Idles share common 0
- * <11..8> 0110 Transmitter mode = HDLC/SDLC
- * <7..4> 0000 Rx Sub modes, addr/ctrl field handling
- * <3..0> 0110 Receiver mode = HDLC/SDLC
- *
- * 0000 0110 0000 0110 = 0x0606
- */
- if (info->params.mode == MGSL_MODE_RAW) {
- RegValue = 0x0001; /* Set Receive mode = external sync */
-
- usc_OutReg( info, IOCR, /* Set IOCR DCD is RxSync Detect Input */
- (unsigned short)((usc_InReg(info, IOCR) & ~(BIT13|BIT12)) | BIT12));
-
- /*
- * TxSubMode:
- * CMR <15> 0 Don't send CRC on Tx Underrun
- * CMR <14> x undefined
- * CMR <13> 0 Send preamble before openning sync
- * CMR <12> 0 Send 8-bit syncs, 1=send Syncs per TxLength
- *
- * TxMode:
- * CMR <11-8) 0100 MonoSync
- *
- * 0x00 0100 xxxx xxxx 04xx
- */
- RegValue |= 0x0400;
- }
- else {
-
- RegValue = 0x0606;
-
- if ( info->params.flags & HDLC_FLAG_UNDERRUN_ABORT15 )
- RegValue |= BIT14;
- else if ( info->params.flags & HDLC_FLAG_UNDERRUN_FLAG )
- RegValue |= BIT15;
- else if ( info->params.flags & HDLC_FLAG_UNDERRUN_CRC )
- RegValue |= BIT15 + BIT14;
- }
-
- if ( info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE )
- RegValue |= BIT13;
- }
-
- if ( info->params.mode == MGSL_MODE_HDLC &&
- (info->params.flags & HDLC_FLAG_SHARE_ZERO) )
- RegValue |= BIT12;
-
- if ( info->params.addr_filter != 0xff )
- {
- /* set up receive address filtering */
- usc_OutReg( info, RSR, info->params.addr_filter );
- RegValue |= BIT4;
- }
-
- usc_OutReg( info, CMR, RegValue );
- info->cmr_value = RegValue;
-
- /* Receiver mode Register (RMR)
- *
- * <15..13> 000 encoding
- * <12..11> 00 FCS = 16bit CRC CCITT (x15 + x12 + x5 + 1)
- * <10> 1 1 = Set CRC to all 1s (use for SDLC/HDLC)
- * <9> 0 1 = Include Receive chars in CRC
- * <8> 1 1 = Use Abort/PE bit as abort indicator
- * <7..6> 00 Even parity
- * <5> 0 parity disabled
- * <4..2> 000 Receive Char Length = 8 bits
- * <1..0> 00 Disable Receiver
- *
- * 0000 0101 0000 0000 = 0x0500
- */
-
- RegValue = 0x0500;
-
- switch ( info->params.encoding ) {
- case HDLC_ENCODING_NRZB: RegValue |= BIT13; break;
- case HDLC_ENCODING_NRZI_MARK: RegValue |= BIT14; break;
- case HDLC_ENCODING_NRZI_SPACE: RegValue |= BIT14 + BIT13; break;
- case HDLC_ENCODING_BIPHASE_MARK: RegValue |= BIT15; break;
- case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT15 + BIT13; break;
- case HDLC_ENCODING_BIPHASE_LEVEL: RegValue |= BIT15 + BIT14; break;
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: RegValue |= BIT15 + BIT14 + BIT13; break;
- }
-
- if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT )
- RegValue |= BIT9;
- else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT )
- RegValue |= ( BIT12 | BIT10 | BIT9 );
-
- usc_OutReg( info, RMR, RegValue );
-
- /* Set the Receive count Limit Register (RCLR) to 0xffff. */
- /* When an opening flag of an SDLC frame is recognized the */
- /* Receive Character count (RCC) is loaded with the value in */
- /* RCLR. The RCC is decremented for each received byte. The */
- /* value of RCC is stored after the closing flag of the frame */
- /* allowing the frame size to be computed. */
-
- usc_OutReg( info, RCLR, RCLRVALUE );
-
- usc_RCmd( info, RCmd_SelectRicrdma_level );
-
- /* Receive Interrupt Control Register (RICR)
- *
- * <15..8> ? RxFIFO DMA Request Level
- * <7> 0 Exited Hunt IA (Interrupt Arm)
- * <6> 0 Idle Received IA
- * <5> 0 Break/Abort IA
- * <4> 0 Rx Bound IA
- * <3> 1 Queued status reflects oldest 2 bytes in FIFO
- * <2> 0 Abort/PE IA
- * <1> 1 Rx Overrun IA
- * <0> 0 Select TC0 value for readback
- *
- * 0000 0000 0000 1000 = 0x000a
- */
-
- /* Carry over the Exit Hunt and Idle Received bits */
- /* in case they have been armed by usc_ArmEvents. */
-
- RegValue = usc_InReg( info, RICR ) & 0xc0;
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- usc_OutReg( info, RICR, (u16)(0x030a | RegValue) );
- else
- usc_OutReg( info, RICR, (u16)(0x140a | RegValue) );
-
- /* Unlatch all Rx status bits and clear Rx status IRQ Pending */
-
- usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, RECEIVE_STATUS );
-
- /* Transmit mode Register (TMR)
- *
- * <15..13> 000 encoding
- * <12..11> 00 FCS = 16bit CRC CCITT (x15 + x12 + x5 + 1)
- * <10> 1 1 = Start CRC as all 1s (use for SDLC/HDLC)
- * <9> 0 1 = Tx CRC Enabled
- * <8> 0 1 = Append CRC to end of transmit frame
- * <7..6> 00 Transmit parity Even
- * <5> 0 Transmit parity Disabled
- * <4..2> 000 Tx Char Length = 8 bits
- * <1..0> 00 Disable Transmitter
- *
- * 0000 0100 0000 0000 = 0x0400
- */
-
- RegValue = 0x0400;
-
- switch ( info->params.encoding ) {
- case HDLC_ENCODING_NRZB: RegValue |= BIT13; break;
- case HDLC_ENCODING_NRZI_MARK: RegValue |= BIT14; break;
- case HDLC_ENCODING_NRZI_SPACE: RegValue |= BIT14 + BIT13; break;
- case HDLC_ENCODING_BIPHASE_MARK: RegValue |= BIT15; break;
- case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT15 + BIT13; break;
- case HDLC_ENCODING_BIPHASE_LEVEL: RegValue |= BIT15 + BIT14; break;
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: RegValue |= BIT15 + BIT14 + BIT13; break;
- }
-
- if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT )
- RegValue |= BIT9 + BIT8;
- else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT )
- RegValue |= ( BIT12 | BIT10 | BIT9 | BIT8);
-
- usc_OutReg( info, TMR, RegValue );
-
- usc_set_txidle( info );
-
-
- usc_TCmd( info, TCmd_SelectTicrdma_level );
-
- /* Transmit Interrupt Control Register (TICR)
- *
- * <15..8> ? Transmit FIFO DMA Level
- * <7> 0 Present IA (Interrupt Arm)
- * <6> 0 Idle Sent IA
- * <5> 1 Abort Sent IA
- * <4> 1 EOF/EOM Sent IA
- * <3> 0 CRC Sent IA
- * <2> 1 1 = Wait for SW Trigger to Start Frame
- * <1> 1 Tx Underrun IA
- * <0> 0 TC0 constant on read back
- *
- * 0000 0000 0011 0110 = 0x0036
- */
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- usc_OutReg( info, TICR, 0x0736 );
- else
- usc_OutReg( info, TICR, 0x1436 );
-
- usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
-
- /*
- ** Transmit Command/Status Register (TCSR)
- **
- ** <15..12> 0000 TCmd
- ** <11> 0/1 UnderWait
- ** <10..08> 000 TxIdle
- ** <7> x PreSent
- ** <6> x IdleSent
- ** <5> x AbortSent
- ** <4> x EOF/EOM Sent
- ** <3> x CRC Sent
- ** <2> x All Sent
- ** <1> x TxUnder
- ** <0> x TxEmpty
- **
- ** 0000 0000 0000 0000 = 0x0000
- */
- info->tcsr_value = 0;
-
- if ( !PreSL1660 )
- info->tcsr_value |= TCSR_UNDERWAIT;
-
- usc_OutReg( info, TCSR, info->tcsr_value );
-
- /* Clock mode Control Register (CMCR)
- *
- * <15..14> 00 counter 1 Source = Disabled
- * <13..12> 00 counter 0 Source = Disabled
- * <11..10> 11 BRG1 Input is TxC Pin
- * <9..8> 11 BRG0 Input is TxC Pin
- * <7..6> 01 DPLL Input is BRG1 Output
- * <5..3> XXX TxCLK comes from Port 0
- * <2..0> XXX RxCLK comes from Port 1
- *
- * 0000 1111 0111 0111 = 0x0f77
- */
-
- RegValue = 0x0f40;
-
- if ( info->params.flags & HDLC_FLAG_RXC_DPLL )
- RegValue |= 0x0003; /* RxCLK from DPLL */
- else if ( info->params.flags & HDLC_FLAG_RXC_BRG )
- RegValue |= 0x0004; /* RxCLK from BRG0 */
- else if ( info->params.flags & HDLC_FLAG_RXC_TXCPIN)
- RegValue |= 0x0006; /* RxCLK from TXC Input */
- else
- RegValue |= 0x0007; /* RxCLK from Port1 */
-
- if ( info->params.flags & HDLC_FLAG_TXC_DPLL )
- RegValue |= 0x0018; /* TxCLK from DPLL */
- else if ( info->params.flags & HDLC_FLAG_TXC_BRG )
- RegValue |= 0x0020; /* TxCLK from BRG0 */
- else if ( info->params.flags & HDLC_FLAG_TXC_RXCPIN)
- RegValue |= 0x0038; /* RxCLK from TXC Input */
- else
- RegValue |= 0x0030; /* TxCLK from Port0 */
-
- usc_OutReg( info, CMCR, RegValue );
-
-
- /* Hardware Configuration Register (HCR)
- *
- * <15..14> 00 CTR0 Divisor:00=32,01=16,10=8,11=4
- * <13> 0 CTR1DSel:0=CTR0Div determines CTR0Div
- * <12> 0 CVOK:0=report code violation in biphase
- * <11..10> 00 DPLL Divisor:00=32,01=16,10=8,11=4
- * <9..8> XX DPLL mode:00=disable,01=NRZ,10=Biphase,11=Biphase Level
- * <7..6> 00 reserved
- * <5> 0 BRG1 mode:0=continuous,1=single cycle
- * <4> X BRG1 Enable
- * <3..2> 00 reserved
- * <1> 0 BRG0 mode:0=continuous,1=single cycle
- * <0> 0 BRG0 Enable
- */
-
- RegValue = 0x0000;
-
- if ( info->params.flags & (HDLC_FLAG_RXC_DPLL + HDLC_FLAG_TXC_DPLL) ) {
- u32 XtalSpeed;
- u32 DpllDivisor;
- u16 Tc;
-
- /* DPLL is enabled. Use BRG1 to provide continuous reference clock */
- /* for DPLL. DPLL mode in HCR is dependent on the encoding used. */
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- XtalSpeed = 11059200;
- else
- XtalSpeed = 14745600;
-
- if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) {
- DpllDivisor = 16;
- RegValue |= BIT10;
- }
- else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) {
- DpllDivisor = 8;
- RegValue |= BIT11;
- }
- else
- DpllDivisor = 32;
-
- /* Tc = (Xtal/Speed) - 1 */
- /* If twice the remainder of (Xtal/Speed) is greater than Speed */
- /* then rounding up gives a more precise time constant. Instead */
- /* of rounding up and then subtracting 1 we just don't subtract */
- /* the one in this case. */
-
- /*--------------------------------------------------
- * ejz: for DPLL mode, application should use the
- * same clock speed as the partner system, even
- * though clocking is derived from the input RxData.
- * In case the user uses a 0 for the clock speed,
- * default to 0xffffffff and don't try to divide by
- * zero
- *--------------------------------------------------*/
- if ( info->params.clock_speed )
- {
- Tc = (u16)((XtalSpeed/DpllDivisor)/info->params.clock_speed);
- if ( !((((XtalSpeed/DpllDivisor) % info->params.clock_speed) * 2)
- / info->params.clock_speed) )
- Tc--;
- }
- else
- Tc = -1;
-
-
- /* Write 16-bit Time Constant for BRG1 */
- usc_OutReg( info, TC1R, Tc );
-
- RegValue |= BIT4; /* enable BRG1 */
-
- switch ( info->params.encoding ) {
- case HDLC_ENCODING_NRZ:
- case HDLC_ENCODING_NRZB:
- case HDLC_ENCODING_NRZI_MARK:
- case HDLC_ENCODING_NRZI_SPACE: RegValue |= BIT8; break;
- case HDLC_ENCODING_BIPHASE_MARK:
- case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT9; break;
- case HDLC_ENCODING_BIPHASE_LEVEL:
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: RegValue |= BIT9 + BIT8; break;
- }
- }
-
- usc_OutReg( info, HCR, RegValue );
-
-
- /* Channel Control/status Register (CCSR)
- *
- * <15> X RCC FIFO Overflow status (RO)
- * <14> X RCC FIFO Not Empty status (RO)
- * <13> 0 1 = Clear RCC FIFO (WO)
- * <12> X DPLL Sync (RW)
- * <11> X DPLL 2 Missed Clocks status (RO)
- * <10> X DPLL 1 Missed Clock status (RO)
- * <9..8> 00 DPLL Resync on rising and falling edges (RW)
- * <7> X SDLC Loop On status (RO)
- * <6> X SDLC Loop Send status (RO)
- * <5> 1 Bypass counters for TxClk and RxClk (RW)
- * <4..2> 000 Last Char of SDLC frame has 8 bits (RW)
- * <1..0> 00 reserved
- *
- * 0000 0000 0010 0000 = 0x0020
- */
-
- usc_OutReg( info, CCSR, 0x1020 );
-
-
- if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) {
- usc_OutReg( info, SICR,
- (u16)(usc_InReg(info,SICR) | SICR_CTS_INACTIVE) );
- }
-
-
- /* enable Master Interrupt Enable bit (MIE) */
- usc_EnableMasterIrqBit( info );
-
- usc_ClearIrqPendingBits( info, RECEIVE_STATUS + RECEIVE_DATA +
- TRANSMIT_STATUS + TRANSMIT_DATA + MISC);
-
- /* arm RCC underflow interrupt */
- usc_OutReg(info, SICR, (u16)(usc_InReg(info,SICR) | BIT3));
- usc_EnableInterrupts(info, MISC);
-
- info->mbre_bit = 0;
- outw( 0, info->io_base ); /* clear Master Bus Enable (DCAR) */
- usc_DmaCmd( info, DmaCmd_ResetAllChannels ); /* disable both DMA channels */
- info->mbre_bit = BIT8;
- outw( BIT8, info->io_base ); /* set Master Bus Enable (DCAR) */
-
- if (info->bus_type == MGSL_BUS_TYPE_ISA) {
- /* Enable DMAEN (Port 7, Bit 14) */
- /* This connects the DMA request signal to the ISA bus */
- usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) & ~BIT14));
- }
-
- /* DMA Control Register (DCR)
- *
- * <15..14> 10 Priority mode = Alternating Tx/Rx
- * 01 Rx has priority
- * 00 Tx has priority
- *
- * <13> 1 Enable Priority Preempt per DCR<15..14>
- * (WARNING DCR<11..10> must be 00 when this is 1)
- * 0 Choose activate channel per DCR<11..10>
- *
- * <12> 0 Little Endian for Array/List
- * <11..10> 00 Both Channels can use each bus grant
- * <9..6> 0000 reserved
- * <5> 0 7 CLK - Minimum Bus Re-request Interval
- * <4> 0 1 = drive D/C and S/D pins
- * <3> 1 1 = Add one wait state to all DMA cycles.
- * <2> 0 1 = Strobe /UAS on every transfer.
- * <1..0> 11 Addr incrementing only affects LS24 bits
- *
- * 0110 0000 0000 1011 = 0x600b
- */
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- /* PCI adapter does not need DMA wait state */
- usc_OutDmaReg( info, DCR, 0xa00b );
- }
- else
- usc_OutDmaReg( info, DCR, 0x800b );
-
-
- /* Receive DMA mode Register (RDMR)
- *
- * <15..14> 11 DMA mode = Linked List Buffer mode
- * <13> 1 RSBinA/L = store Rx status Block in Arrary/List entry
- * <12> 1 Clear count of List Entry after fetching
- * <11..10> 00 Address mode = Increment
- * <9> 1 Terminate Buffer on RxBound
- * <8> 0 Bus Width = 16bits
- * <7..0> ? status Bits (write as 0s)
- *
- * 1111 0010 0000 0000 = 0xf200
- */
-
- usc_OutDmaReg( info, RDMR, 0xf200 );
-
-
- /* Transmit DMA mode Register (TDMR)
- *
- * <15..14> 11 DMA mode = Linked List Buffer mode
- * <13> 1 TCBinA/L = fetch Tx Control Block from List entry
- * <12> 1 Clear count of List Entry after fetching
- * <11..10> 00 Address mode = Increment
- * <9> 1 Terminate Buffer on end of frame
- * <8> 0 Bus Width = 16bits
- * <7..0> ? status Bits (Read Only so write as 0)
- *
- * 1111 0010 0000 0000 = 0xf200
- */
-
- usc_OutDmaReg( info, TDMR, 0xf200 );
-
-
- /* DMA Interrupt Control Register (DICR)
- *
- * <15> 1 DMA Interrupt Enable
- * <14> 0 1 = Disable IEO from USC
- * <13> 0 1 = Don't provide vector during IntAck
- * <12> 1 1 = Include status in Vector
- * <10..2> 0 reserved, Must be 0s
- * <1> 0 1 = Rx DMA Interrupt Enabled
- * <0> 0 1 = Tx DMA Interrupt Enabled
- *
- * 1001 0000 0000 0000 = 0x9000
- */
-
- usc_OutDmaReg( info, DICR, 0x9000 );
-
- usc_InDmaReg( info, RDMR ); /* clear pending receive DMA IRQ bits */
- usc_InDmaReg( info, TDMR ); /* clear pending transmit DMA IRQ bits */
- usc_OutDmaReg( info, CDIR, 0x0303 ); /* clear IUS and Pending for Tx and Rx */
-
- /* Channel Control Register (CCR)
- *
- * <15..14> 10 Use 32-bit Tx Control Blocks (TCBs)
- * <13> 0 Trigger Tx on SW Command Disabled
- * <12> 0 Flag Preamble Disabled
- * <11..10> 00 Preamble Length
- * <9..8> 00 Preamble Pattern
- * <7..6> 10 Use 32-bit Rx status Blocks (RSBs)
- * <5> 0 Trigger Rx on SW Command Disabled
- * <4..0> 0 reserved
- *
- * 1000 0000 1000 0000 = 0x8080
- */
-
- RegValue = 0x8080;
-
- switch ( info->params.preamble_length ) {
- case HDLC_PREAMBLE_LENGTH_16BITS: RegValue |= BIT10; break;
- case HDLC_PREAMBLE_LENGTH_32BITS: RegValue |= BIT11; break;
- case HDLC_PREAMBLE_LENGTH_64BITS: RegValue |= BIT11 + BIT10; break;
- }
-
- switch ( info->params.preamble ) {
- case HDLC_PREAMBLE_PATTERN_FLAGS: RegValue |= BIT8 + BIT12; break;
- case HDLC_PREAMBLE_PATTERN_ONES: RegValue |= BIT8; break;
- case HDLC_PREAMBLE_PATTERN_10: RegValue |= BIT9; break;
- case HDLC_PREAMBLE_PATTERN_01: RegValue |= BIT9 + BIT8; break;
- }
-
- usc_OutReg( info, CCR, RegValue );
-
-
- /*
- * Burst/Dwell Control Register
- *
- * <15..8> 0x20 Maximum number of transfers per bus grant
- * <7..0> 0x00 Maximum number of clock cycles per bus grant
- */
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- /* don't limit bus occupancy on PCI adapter */
- usc_OutDmaReg( info, BDCR, 0x0000 );
- }
- else
- usc_OutDmaReg( info, BDCR, 0x2000 );
-
- usc_stop_transmitter(info);
- usc_stop_receiver(info);
-
-} /* end of usc_set_sdlc_mode() */
-
-/* usc_enable_loopback()
- *
- * Set the 16C32 for internal loopback mode.
- * The TxCLK and RxCLK signals are generated from the BRG0 and
- * the TxD is looped back to the RxD internally.
- *
- * Arguments: info pointer to device instance data
- * enable 1 = enable loopback, 0 = disable
- * Return Value: None
- */
-static void usc_enable_loopback(struct mgsl_struct *info, int enable)
-{
- if (enable) {
- /* blank external TXD output */
- usc_OutReg(info,IOCR,usc_InReg(info,IOCR) | (BIT7+BIT6));
-
- /* Clock mode Control Register (CMCR)
- *
- * <15..14> 00 counter 1 Disabled
- * <13..12> 00 counter 0 Disabled
- * <11..10> 11 BRG1 Input is TxC Pin
- * <9..8> 11 BRG0 Input is TxC Pin
- * <7..6> 01 DPLL Input is BRG1 Output
- * <5..3> 100 TxCLK comes from BRG0
- * <2..0> 100 RxCLK comes from BRG0
- *
- * 0000 1111 0110 0100 = 0x0f64
- */
-
- usc_OutReg( info, CMCR, 0x0f64 );
-
- /* Write 16-bit Time Constant for BRG0 */
- /* use clock speed if available, otherwise use 8 for diagnostics */
- if (info->params.clock_speed) {
- if (info->bus_type == MGSL_BUS_TYPE_PCI)
- usc_OutReg(info, TC0R, (u16)((11059200/info->params.clock_speed)-1));
- else
- usc_OutReg(info, TC0R, (u16)((14745600/info->params.clock_speed)-1));
- } else
- usc_OutReg(info, TC0R, (u16)8);
-
- /* Hardware Configuration Register (HCR) Clear Bit 1, BRG0
- mode = Continuous Set Bit 0 to enable BRG0. */
- usc_OutReg( info, HCR, (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );
-
- /* Input/Output Control Reg, <2..0> = 100, Drive RxC pin with BRG0 */
- usc_OutReg(info, IOCR, (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004));
-
- /* set Internal Data loopback mode */
- info->loopback_bits = 0x300;
- outw( 0x0300, info->io_base + CCAR );
- } else {
- /* enable external TXD output */
- usc_OutReg(info,IOCR,usc_InReg(info,IOCR) & ~(BIT7+BIT6));
-
- /* clear Internal Data loopback mode */
- info->loopback_bits = 0;
- outw( 0,info->io_base + CCAR );
- }
-
-} /* end of usc_enable_loopback() */
-
-/* usc_enable_aux_clock()
- *
- * Enabled the AUX clock output at the specified frequency.
- *
- * Arguments:
- *
- * info pointer to device extension
- * data_rate data rate of clock in bits per second
- * A data rate of 0 disables the AUX clock.
- *
- * Return Value: None
- */
-static void usc_enable_aux_clock( struct mgsl_struct *info, u32 data_rate )
-{
- u32 XtalSpeed;
- u16 Tc;
-
- if ( data_rate ) {
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- XtalSpeed = 11059200;
- else
- XtalSpeed = 14745600;
-
-
- /* Tc = (Xtal/Speed) - 1 */
- /* If twice the remainder of (Xtal/Speed) is greater than Speed */
- /* then rounding up gives a more precise time constant. Instead */
- /* of rounding up and then subtracting 1 we just don't subtract */
- /* the one in this case. */
-
-
- Tc = (u16)(XtalSpeed/data_rate);
- if ( !(((XtalSpeed % data_rate) * 2) / data_rate) )
- Tc--;
-
- /* Write 16-bit Time Constant for BRG0 */
- usc_OutReg( info, TC0R, Tc );
-
- /*
- * Hardware Configuration Register (HCR)
- * Clear Bit 1, BRG0 mode = Continuous
- * Set Bit 0 to enable BRG0.
- */
-
- usc_OutReg( info, HCR, (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );
-
- /* Input/Output Control Reg, <2..0> = 100, Drive RxC pin with BRG0 */
- usc_OutReg( info, IOCR, (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004) );
- } else {
- /* data rate == 0 so turn off BRG0 */
- usc_OutReg( info, HCR, (u16)(usc_InReg( info, HCR ) & ~BIT0) );
- }
-
-} /* end of usc_enable_aux_clock() */
-
-/*
- *
- * usc_process_rxoverrun_sync()
- *
- * This function processes a receive overrun by resetting the
- * receive DMA buffers and issuing a Purge Rx FIFO command
- * to allow the receiver to continue receiving.
- *
- * Arguments:
- *
- * info pointer to device extension
- *
- * Return Value: None
- */
-static void usc_process_rxoverrun_sync( struct mgsl_struct *info )
-{
- int start_index;
- int end_index;
- int frame_start_index;
- bool start_of_frame_found = false;
- bool end_of_frame_found = false;
- bool reprogram_dma = false;
-
- DMABUFFERENTRY *buffer_list = info->rx_buffer_list;
- u32 phys_addr;
-
- usc_DmaCmd( info, DmaCmd_PauseRxChannel );
- usc_RCmd( info, RCmd_EnterHuntmode );
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
- /* CurrentRxBuffer points to the 1st buffer of the next */
- /* possibly available receive frame. */
-
- frame_start_index = start_index = end_index = info->current_rx_buffer;
-
- /* Search for an unfinished string of buffers. This means */
- /* that a receive frame started (at least one buffer with */
- /* count set to zero) but there is no terminiting buffer */
- /* (status set to non-zero). */
-
- while( !buffer_list[end_index].count )
- {
- /* Count field has been reset to zero by 16C32. */
- /* This buffer is currently in use. */
-
- if ( !start_of_frame_found )
- {
- start_of_frame_found = true;
- frame_start_index = end_index;
- end_of_frame_found = false;
- }
-
- if ( buffer_list[end_index].status )
- {
- /* Status field has been set by 16C32. */
- /* This is the last buffer of a received frame. */
-
- /* We want to leave the buffers for this frame intact. */
- /* Move on to next possible frame. */
-
- start_of_frame_found = false;
- end_of_frame_found = true;
- }
-
- /* advance to next buffer entry in linked list */
- end_index++;
- if ( end_index == info->rx_buffer_count )
- end_index = 0;
-
- if ( start_index == end_index )
- {
- /* The entire list has been searched with all Counts == 0 and */
- /* all Status == 0. The receive buffers are */
- /* completely screwed, reset all receive buffers! */
- mgsl_reset_rx_dma_buffers( info );
- frame_start_index = 0;
- start_of_frame_found = false;
- reprogram_dma = true;
- break;
- }
- }
-
- if ( start_of_frame_found && !end_of_frame_found )
- {
- /* There is an unfinished string of receive DMA buffers */
- /* as a result of the receiver overrun. */
-
- /* Reset the buffers for the unfinished frame */
- /* and reprogram the receive DMA controller to start */
- /* at the 1st buffer of unfinished frame. */
-
- start_index = frame_start_index;
-
- do
- {
- *((unsigned long *)&(info->rx_buffer_list[start_index++].count)) = DMABUFFERSIZE;
-
- /* Adjust index for wrap around. */
- if ( start_index == info->rx_buffer_count )
- start_index = 0;
-
- } while( start_index != end_index );
-
- reprogram_dma = true;
- }
-
- if ( reprogram_dma )
- {
- usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);
- usc_ClearIrqPendingBits(info, RECEIVE_DATA|RECEIVE_STATUS);
- usc_UnlatchRxstatusBits(info, RECEIVE_DATA|RECEIVE_STATUS);
-
- usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);
-
- /* This empties the receive FIFO and loads the RCC with RCLR */
- usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
-
- /* program 16C32 with physical address of 1st DMA buffer entry */
- phys_addr = info->rx_buffer_list[frame_start_index].phys_entry;
- usc_OutDmaReg( info, NRARL, (u16)phys_addr );
- usc_OutDmaReg( info, NRARU, (u16)(phys_addr >> 16) );
-
- usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, RECEIVE_DATA + RECEIVE_STATUS );
- usc_EnableInterrupts( info, RECEIVE_STATUS );
-
- /* 1. Arm End of Buffer (EOB) Receive DMA Interrupt (BIT2 of RDIAR) */
- /* 2. Enable Receive DMA Interrupts (BIT1 of DICR) */
-
- usc_OutDmaReg( info, RDIAR, BIT3 + BIT2 );
- usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT1) );
- usc_DmaCmd( info, DmaCmd_InitRxChannel );
- if ( info->params.flags & HDLC_FLAG_AUTO_DCD )
- usc_EnableReceiver(info,ENABLE_AUTO_DCD);
- else
- usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
- }
- else
- {
- /* This empties the receive FIFO and loads the RCC with RCLR */
- usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
- }
-
-} /* end of usc_process_rxoverrun_sync() */
-
-/* usc_stop_receiver()
- *
- * Disable USC receiver
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_stop_receiver( struct mgsl_struct *info )
-{
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):usc_stop_receiver(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- /* Disable receive DMA channel. */
- /* This also disables receive DMA channel interrupts */
- usc_DmaCmd( info, DmaCmd_ResetRxChannel );
-
- usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, RECEIVE_DATA + RECEIVE_STATUS );
- usc_DisableInterrupts( info, RECEIVE_DATA + RECEIVE_STATUS );
-
- usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);
-
- /* This empties the receive FIFO and loads the RCC with RCLR */
- usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
- info->rx_enabled = false;
- info->rx_overflow = false;
- info->rx_rcc_underrun = false;
-
-} /* end of stop_receiver() */
-
-/* usc_start_receiver()
- *
- * Enable the USC receiver
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_start_receiver( struct mgsl_struct *info )
-{
- u32 phys_addr;
-
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):usc_start_receiver(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- mgsl_reset_rx_dma_buffers( info );
- usc_stop_receiver( info );
-
- usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
- if ( info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW ) {
- /* DMA mode Transfers */
- /* Program the DMA controller. */
- /* Enable the DMA controller end of buffer interrupt. */
-
- /* program 16C32 with physical address of 1st DMA buffer entry */
- phys_addr = info->rx_buffer_list[0].phys_entry;
- usc_OutDmaReg( info, NRARL, (u16)phys_addr );
- usc_OutDmaReg( info, NRARU, (u16)(phys_addr >> 16) );
-
- usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, RECEIVE_DATA + RECEIVE_STATUS );
- usc_EnableInterrupts( info, RECEIVE_STATUS );
-
- /* 1. Arm End of Buffer (EOB) Receive DMA Interrupt (BIT2 of RDIAR) */
- /* 2. Enable Receive DMA Interrupts (BIT1 of DICR) */
-
- usc_OutDmaReg( info, RDIAR, BIT3 + BIT2 );
- usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT1) );
- usc_DmaCmd( info, DmaCmd_InitRxChannel );
- if ( info->params.flags & HDLC_FLAG_AUTO_DCD )
- usc_EnableReceiver(info,ENABLE_AUTO_DCD);
- else
- usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
- } else {
- usc_UnlatchRxstatusBits(info, RXSTATUS_ALL);
- usc_ClearIrqPendingBits(info, RECEIVE_DATA + RECEIVE_STATUS);
- usc_EnableInterrupts(info, RECEIVE_DATA);
-
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
- usc_RCmd( info, RCmd_EnterHuntmode );
-
- usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
- }
-
- usc_OutReg( info, CCSR, 0x1020 );
-
- info->rx_enabled = true;
-
-} /* end of usc_start_receiver() */
-
-/* usc_start_transmitter()
- *
- * Enable the USC transmitter and send a transmit frame if
- * one is loaded in the DMA buffers.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_start_transmitter( struct mgsl_struct *info )
-{
- u32 phys_addr;
- unsigned int FrameSize;
-
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):usc_start_transmitter(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- if ( info->xmit_cnt ) {
-
- /* If auto RTS enabled and RTS is inactive, then assert */
- /* RTS and set a flag indicating that the driver should */
- /* negate RTS when the transmission completes. */
-
- info->drop_rts_on_tx_done = false;
-
- if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) {
- usc_get_serial_signals( info );
- if ( !(info->serial_signals & SerialSignal_RTS) ) {
- info->serial_signals |= SerialSignal_RTS;
- usc_set_serial_signals( info );
- info->drop_rts_on_tx_done = true;
- }
- }
-
-
- if ( info->params.mode == MGSL_MODE_ASYNC ) {
- if ( !info->tx_active ) {
- usc_UnlatchTxstatusBits(info, TXSTATUS_ALL);
- usc_ClearIrqPendingBits(info, TRANSMIT_STATUS + TRANSMIT_DATA);
- usc_EnableInterrupts(info, TRANSMIT_DATA);
- usc_load_txfifo(info);
- }
- } else {
- /* Disable transmit DMA controller while programming. */
- usc_DmaCmd( info, DmaCmd_ResetTxChannel );
-
- /* Transmit DMA buffer is loaded, so program USC */
- /* to send the frame contained in the buffers. */
-
- FrameSize = info->tx_buffer_list[info->start_tx_dma_buffer].rcc;
-
- /* if operating in Raw sync mode, reset the rcc component
- * of the tx dma buffer entry, otherwise, the serial controller
- * will send a closing sync char after this count.
- */
- if ( info->params.mode == MGSL_MODE_RAW )
- info->tx_buffer_list[info->start_tx_dma_buffer].rcc = 0;
-
- /* Program the Transmit Character Length Register (TCLR) */
- /* and clear FIFO (TCC is loaded with TCLR on FIFO clear) */
- usc_OutReg( info, TCLR, (u16)FrameSize );
-
- usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
- /* Program the address of the 1st DMA Buffer Entry in linked list */
- phys_addr = info->tx_buffer_list[info->start_tx_dma_buffer].phys_entry;
- usc_OutDmaReg( info, NTARL, (u16)phys_addr );
- usc_OutDmaReg( info, NTARU, (u16)(phys_addr >> 16) );
-
- usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
- usc_EnableInterrupts( info, TRANSMIT_STATUS );
-
- if ( info->params.mode == MGSL_MODE_RAW &&
- info->num_tx_dma_buffers > 1 ) {
- /* When running external sync mode, attempt to 'stream' transmit */
- /* by filling tx dma buffers as they become available. To do this */
- /* we need to enable Tx DMA EOB Status interrupts : */
- /* */
- /* 1. Arm End of Buffer (EOB) Transmit DMA Interrupt (BIT2 of TDIAR) */
- /* 2. Enable Transmit DMA Interrupts (BIT0 of DICR) */
-
- usc_OutDmaReg( info, TDIAR, BIT2|BIT3 );
- usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT0) );
- }
-
- /* Initialize Transmit DMA Channel */
- usc_DmaCmd( info, DmaCmd_InitTxChannel );
-
- usc_TCmd( info, TCmd_SendFrame );
-
- mod_timer(&info->tx_timer, jiffies +
- msecs_to_jiffies(5000));
- }
- info->tx_active = true;
- }
-
- if ( !info->tx_enabled ) {
- info->tx_enabled = true;
- if ( info->params.flags & HDLC_FLAG_AUTO_CTS )
- usc_EnableTransmitter(info,ENABLE_AUTO_CTS);
- else
- usc_EnableTransmitter(info,ENABLE_UNCONDITIONAL);
- }
-
-} /* end of usc_start_transmitter() */
-
-/* usc_stop_transmitter()
- *
- * Stops the transmitter and DMA
- *
- * Arguments: info pointer to device isntance data
- * Return Value: None
- */
-static void usc_stop_transmitter( struct mgsl_struct *info )
-{
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):usc_stop_transmitter(%s)\n",
- __FILE__,__LINE__, info->device_name );
-
- del_timer(&info->tx_timer);
-
- usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, TRANSMIT_STATUS + TRANSMIT_DATA );
- usc_DisableInterrupts( info, TRANSMIT_STATUS + TRANSMIT_DATA );
-
- usc_EnableTransmitter(info,DISABLE_UNCONDITIONAL);
- usc_DmaCmd( info, DmaCmd_ResetTxChannel );
- usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
- info->tx_enabled = false;
- info->tx_active = false;
-
-} /* end of usc_stop_transmitter() */
-
-/* usc_load_txfifo()
- *
- * Fill the transmit FIFO until the FIFO is full or
- * there is no more data to load.
- *
- * Arguments: info pointer to device extension (instance data)
- * Return Value: None
- */
-static void usc_load_txfifo( struct mgsl_struct *info )
-{
- int Fifocount;
- u8 TwoBytes[2];
-
- if ( !info->xmit_cnt && !info->x_char )
- return;
-
- /* Select transmit FIFO status readback in TICR */
- usc_TCmd( info, TCmd_SelectTicrTxFifostatus );
-
- /* load the Transmit FIFO until FIFOs full or all data sent */
-
- while( (Fifocount = usc_InReg(info, TICR) >> 8) && info->xmit_cnt ) {
- /* there is more space in the transmit FIFO and */
- /* there is more data in transmit buffer */
-
- if ( (info->xmit_cnt > 1) && (Fifocount > 1) && !info->x_char ) {
- /* write a 16-bit word from transmit buffer to 16C32 */
-
- TwoBytes[0] = info->xmit_buf[info->xmit_tail++];
- info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
- TwoBytes[1] = info->xmit_buf[info->xmit_tail++];
- info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
-
- outw( *((u16 *)TwoBytes), info->io_base + DATAREG);
-
- info->xmit_cnt -= 2;
- info->icount.tx += 2;
- } else {
- /* only 1 byte left to transmit or 1 FIFO slot left */
-
- outw( (inw( info->io_base + CCAR) & 0x0780) | (TDR+LSBONLY),
- info->io_base + CCAR );
-
- if (info->x_char) {
- /* transmit pending high priority char */
- outw( info->x_char,info->io_base + CCAR );
- info->x_char = 0;
- } else {
- outw( info->xmit_buf[info->xmit_tail++],info->io_base + CCAR );
- info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);
- info->xmit_cnt--;
- }
- info->icount.tx++;
- }
- }
-
-} /* end of usc_load_txfifo() */
-
-/* usc_reset()
- *
- * Reset the adapter to a known state and prepare it for further use.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_reset( struct mgsl_struct *info )
-{
- if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {
- int i;
- u32 readval;
-
- /* Set BIT30 of Misc Control Register */
- /* (Local Control Register 0x50) to force reset of USC. */
-
- volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);
- u32 *LCR0BRDR = (u32 *)(info->lcr_base + 0x28);
-
- info->misc_ctrl_value |= BIT30;
- *MiscCtrl = info->misc_ctrl_value;
-
- /*
- * Force at least 170ns delay before clearing
- * reset bit. Each read from LCR takes at least
- * 30ns so 10 times for 300ns to be safe.
- */
- for(i=0;i<10;i++)
- readval = *MiscCtrl;
-
- info->misc_ctrl_value &= ~BIT30;
- *MiscCtrl = info->misc_ctrl_value;
-
- *LCR0BRDR = BUS_DESCRIPTOR(
- 1, // Write Strobe Hold (0-3)
- 2, // Write Strobe Delay (0-3)
- 2, // Read Strobe Delay (0-3)
- 0, // NWDD (Write data-data) (0-3)
- 4, // NWAD (Write Addr-data) (0-31)
- 0, // NXDA (Read/Write Data-Addr) (0-3)
- 0, // NRDD (Read Data-Data) (0-3)
- 5 // NRAD (Read Addr-Data) (0-31)
- );
- } else {
- /* do HW reset */
- outb( 0,info->io_base + 8 );
- }
-
- info->mbre_bit = 0;
- info->loopback_bits = 0;
- info->usc_idle_mode = 0;
-
- /*
- * Program the Bus Configuration Register (BCR)
- *
- * <15> 0 Don't use separate address
- * <14..6> 0 reserved
- * <5..4> 00 IAckmode = Default, don't care
- * <3> 1 Bus Request Totem Pole output
- * <2> 1 Use 16 Bit data bus
- * <1> 0 IRQ Totem Pole output
- * <0> 0 Don't Shift Right Addr
- *
- * 0000 0000 0000 1100 = 0x000c
- *
- * By writing to io_base + SDPIN the Wait/Ack pin is
- * programmed to work as a Wait pin.
- */
-
- outw( 0x000c,info->io_base + SDPIN );
-
-
- outw( 0,info->io_base );
- outw( 0,info->io_base + CCAR );
-
- /* select little endian byte ordering */
- usc_RTCmd( info, RTCmd_SelectLittleEndian );
-
-
- /* Port Control Register (PCR)
- *
- * <15..14> 11 Port 7 is Output (~DMAEN, Bit 14 : 0 = Enabled)
- * <13..12> 11 Port 6 is Output (~INTEN, Bit 12 : 0 = Enabled)
- * <11..10> 00 Port 5 is Input (No Connect, Don't Care)
- * <9..8> 00 Port 4 is Input (No Connect, Don't Care)
- * <7..6> 11 Port 3 is Output (~RTS, Bit 6 : 0 = Enabled )
- * <5..4> 11 Port 2 is Output (~DTR, Bit 4 : 0 = Enabled )
- * <3..2> 01 Port 1 is Input (Dedicated RxC)
- * <1..0> 01 Port 0 is Input (Dedicated TxC)
- *
- * 1111 0000 1111 0101 = 0xf0f5
- */
-
- usc_OutReg( info, PCR, 0xf0f5 );
-
-
- /*
- * Input/Output Control Register
- *
- * <15..14> 00 CTS is active low input
- * <13..12> 00 DCD is active low input
- * <11..10> 00 TxREQ pin is input (DSR)
- * <9..8> 00 RxREQ pin is input (RI)
- * <7..6> 00 TxD is output (Transmit Data)
- * <5..3> 000 TxC Pin in Input (14.7456MHz Clock)
- * <2..0> 100 RxC is Output (drive with BRG0)
- *
- * 0000 0000 0000 0100 = 0x0004
- */
-
- usc_OutReg( info, IOCR, 0x0004 );
-
-} /* end of usc_reset() */
-
-/* usc_set_async_mode()
- *
- * Program adapter for asynchronous communications.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_set_async_mode( struct mgsl_struct *info )
-{
- u16 RegValue;
-
- /* disable interrupts while programming USC */
- usc_DisableMasterIrqBit( info );
-
- outw( 0, info->io_base ); /* clear Master Bus Enable (DCAR) */
- usc_DmaCmd( info, DmaCmd_ResetAllChannels ); /* disable both DMA channels */
-
- usc_loopback_frame( info );
-
- /* Channel mode Register (CMR)
- *
- * <15..14> 00 Tx Sub modes, 00 = 1 Stop Bit
- * <13..12> 00 00 = 16X Clock
- * <11..8> 0000 Transmitter mode = Asynchronous
- * <7..6> 00 reserved?
- * <5..4> 00 Rx Sub modes, 00 = 16X Clock
- * <3..0> 0000 Receiver mode = Asynchronous
- *
- * 0000 0000 0000 0000 = 0x0
- */
-
- RegValue = 0;
- if ( info->params.stop_bits != 1 )
- RegValue |= BIT14;
- usc_OutReg( info, CMR, RegValue );
-
-
- /* Receiver mode Register (RMR)
- *
- * <15..13> 000 encoding = None
- * <12..08> 00000 reserved (Sync Only)
- * <7..6> 00 Even parity
- * <5> 0 parity disabled
- * <4..2> 000 Receive Char Length = 8 bits
- * <1..0> 00 Disable Receiver
- *
- * 0000 0000 0000 0000 = 0x0
- */
-
- RegValue = 0;
-
- if ( info->params.data_bits != 8 )
- RegValue |= BIT4+BIT3+BIT2;
-
- if ( info->params.parity != ASYNC_PARITY_NONE ) {
- RegValue |= BIT5;
- if ( info->params.parity != ASYNC_PARITY_ODD )
- RegValue |= BIT6;
- }
-
- usc_OutReg( info, RMR, RegValue );
-
-
- /* Set IRQ trigger level */
-
- usc_RCmd( info, RCmd_SelectRicrIntLevel );
-
-
- /* Receive Interrupt Control Register (RICR)
- *
- * <15..8> ? RxFIFO IRQ Request Level
- *
- * Note: For async mode the receive FIFO level must be set
- * to 0 to avoid the situation where the FIFO contains fewer bytes
- * than the trigger level and no more data is expected.
- *
- * <7> 0 Exited Hunt IA (Interrupt Arm)
- * <6> 0 Idle Received IA
- * <5> 0 Break/Abort IA
- * <4> 0 Rx Bound IA
- * <3> 0 Queued status reflects oldest byte in FIFO
- * <2> 0 Abort/PE IA
- * <1> 0 Rx Overrun IA
- * <0> 0 Select TC0 value for readback
- *
- * 0000 0000 0100 0000 = 0x0000 + (FIFOLEVEL in MSB)
- */
-
- usc_OutReg( info, RICR, 0x0000 );
-
- usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, RECEIVE_STATUS );
-
-
- /* Transmit mode Register (TMR)
- *
- * <15..13> 000 encoding = None
- * <12..08> 00000 reserved (Sync Only)
- * <7..6> 00 Transmit parity Even
- * <5> 0 Transmit parity Disabled
- * <4..2> 000 Tx Char Length = 8 bits
- * <1..0> 00 Disable Transmitter
- *
- * 0000 0000 0000 0000 = 0x0
- */
-
- RegValue = 0;
-
- if ( info->params.data_bits != 8 )
- RegValue |= BIT4+BIT3+BIT2;
-
- if ( info->params.parity != ASYNC_PARITY_NONE ) {
- RegValue |= BIT5;
- if ( info->params.parity != ASYNC_PARITY_ODD )
- RegValue |= BIT6;
- }
-
- usc_OutReg( info, TMR, RegValue );
-
- usc_set_txidle( info );
-
-
- /* Set IRQ trigger level */
-
- usc_TCmd( info, TCmd_SelectTicrIntLevel );
-
-
- /* Transmit Interrupt Control Register (TICR)
- *
- * <15..8> ? Transmit FIFO IRQ Level
- * <7> 0 Present IA (Interrupt Arm)
- * <6> 1 Idle Sent IA
- * <5> 0 Abort Sent IA
- * <4> 0 EOF/EOM Sent IA
- * <3> 0 CRC Sent IA
- * <2> 0 1 = Wait for SW Trigger to Start Frame
- * <1> 0 Tx Underrun IA
- * <0> 0 TC0 constant on read back
- *
- * 0000 0000 0100 0000 = 0x0040
- */
-
- usc_OutReg( info, TICR, 0x1f40 );
-
- usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );
- usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );
-
- usc_enable_async_clock( info, info->params.data_rate );
-
-
- /* Channel Control/status Register (CCSR)
- *
- * <15> X RCC FIFO Overflow status (RO)
- * <14> X RCC FIFO Not Empty status (RO)
- * <13> 0 1 = Clear RCC FIFO (WO)
- * <12> X DPLL in Sync status (RO)
- * <11> X DPLL 2 Missed Clocks status (RO)
- * <10> X DPLL 1 Missed Clock status (RO)
- * <9..8> 00 DPLL Resync on rising and falling edges (RW)
- * <7> X SDLC Loop On status (RO)
- * <6> X SDLC Loop Send status (RO)
- * <5> 1 Bypass counters for TxClk and RxClk (RW)
- * <4..2> 000 Last Char of SDLC frame has 8 bits (RW)
- * <1..0> 00 reserved
- *
- * 0000 0000 0010 0000 = 0x0020
- */
-
- usc_OutReg( info, CCSR, 0x0020 );
-
- usc_DisableInterrupts( info, TRANSMIT_STATUS + TRANSMIT_DATA +
- RECEIVE_DATA + RECEIVE_STATUS );
-
- usc_ClearIrqPendingBits( info, TRANSMIT_STATUS + TRANSMIT_DATA +
- RECEIVE_DATA + RECEIVE_STATUS );
-
- usc_EnableMasterIrqBit( info );
-
- if (info->bus_type == MGSL_BUS_TYPE_ISA) {
- /* Enable INTEN (Port 6, Bit12) */
- /* This connects the IRQ request signal to the ISA bus */
- usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));
- }
-
- if (info->params.loopback) {
- info->loopback_bits = 0x300;
- outw(0x0300, info->io_base + CCAR);
- }
-
-} /* end of usc_set_async_mode() */
-
-/* usc_loopback_frame()
- *
- * Loop back a small (2 byte) dummy SDLC frame.
- * Interrupts and DMA are NOT used. The purpose of this is to
- * clear any 'stale' status info left over from running in async mode.
- *
- * The 16C32 shows the strange behaviour of marking the 1st
- * received SDLC frame with a CRC error even when there is no
- * CRC error. To get around this a small dummy from of 2 bytes
- * is looped back when switching from async to sync mode.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_loopback_frame( struct mgsl_struct *info )
-{
- int i;
- unsigned long oldmode = info->params.mode;
-
- info->params.mode = MGSL_MODE_HDLC;
-
- usc_DisableMasterIrqBit( info );
-
- usc_set_sdlc_mode( info );
- usc_enable_loopback( info, 1 );
-
- /* Write 16-bit Time Constant for BRG0 */
- usc_OutReg( info, TC0R, 0 );
-
- /* Channel Control Register (CCR)
- *
- * <15..14> 00 Don't use 32-bit Tx Control Blocks (TCBs)
- * <13> 0 Trigger Tx on SW Command Disabled
- * <12> 0 Flag Preamble Disabled
- * <11..10> 00 Preamble Length = 8-Bits
- * <9..8> 01 Preamble Pattern = flags
- * <7..6> 10 Don't use 32-bit Rx status Blocks (RSBs)
- * <5> 0 Trigger Rx on SW Command Disabled
- * <4..0> 0 reserved
- *
- * 0000 0001 0000 0000 = 0x0100
- */
-
- usc_OutReg( info, CCR, 0x0100 );
-
- /* SETUP RECEIVER */
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
- usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);
-
- /* SETUP TRANSMITTER */
- /* Program the Transmit Character Length Register (TCLR) */
- /* and clear FIFO (TCC is loaded with TCLR on FIFO clear) */
- usc_OutReg( info, TCLR, 2 );
- usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
- /* unlatch Tx status bits, and start transmit channel. */
- usc_UnlatchTxstatusBits(info,TXSTATUS_ALL);
- outw(0,info->io_base + DATAREG);
-
- /* ENABLE TRANSMITTER */
- usc_TCmd( info, TCmd_SendFrame );
- usc_EnableTransmitter(info,ENABLE_UNCONDITIONAL);
-
- /* WAIT FOR RECEIVE COMPLETE */
- for (i=0 ; i<1000 ; i++)
- if (usc_InReg( info, RCSR ) & (BIT8 + BIT4 + BIT3 + BIT1))
- break;
-
- /* clear Internal Data loopback mode */
- usc_enable_loopback(info, 0);
-
- usc_EnableMasterIrqBit(info);
-
- info->params.mode = oldmode;
-
-} /* end of usc_loopback_frame() */
-
-/* usc_set_sync_mode() Programs the USC for SDLC communications.
- *
- * Arguments: info pointer to adapter info structure
- * Return Value: None
- */
-static void usc_set_sync_mode( struct mgsl_struct *info )
-{
- usc_loopback_frame( info );
- usc_set_sdlc_mode( info );
-
- if (info->bus_type == MGSL_BUS_TYPE_ISA) {
- /* Enable INTEN (Port 6, Bit12) */
- /* This connects the IRQ request signal to the ISA bus */
- usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));
- }
-
- usc_enable_aux_clock(info, info->params.clock_speed);
-
- if (info->params.loopback)
- usc_enable_loopback(info,1);
-
-} /* end of mgsl_set_sync_mode() */
-
-/* usc_set_txidle() Set the HDLC idle mode for the transmitter.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_set_txidle( struct mgsl_struct *info )
-{
- u16 usc_idle_mode = IDLEMODE_FLAGS;
-
- /* Map API idle mode to USC register bits */
-
- switch( info->idle_mode ){
- case HDLC_TXIDLE_FLAGS: usc_idle_mode = IDLEMODE_FLAGS; break;
- case HDLC_TXIDLE_ALT_ZEROS_ONES: usc_idle_mode = IDLEMODE_ALT_ONE_ZERO; break;
- case HDLC_TXIDLE_ZEROS: usc_idle_mode = IDLEMODE_ZERO; break;
- case HDLC_TXIDLE_ONES: usc_idle_mode = IDLEMODE_ONE; break;
- case HDLC_TXIDLE_ALT_MARK_SPACE: usc_idle_mode = IDLEMODE_ALT_MARK_SPACE; break;
- case HDLC_TXIDLE_SPACE: usc_idle_mode = IDLEMODE_SPACE; break;
- case HDLC_TXIDLE_MARK: usc_idle_mode = IDLEMODE_MARK; break;
- }
-
- info->usc_idle_mode = usc_idle_mode;
- //usc_OutReg(info, TCSR, usc_idle_mode);
- info->tcsr_value &= ~IDLEMODE_MASK; /* clear idle mode bits */
- info->tcsr_value += usc_idle_mode;
- usc_OutReg(info, TCSR, info->tcsr_value);
-
- /*
- * if SyncLink WAN adapter is running in external sync mode, the
- * transmitter has been set to Monosync in order to try to mimic
- * a true raw outbound bit stream. Monosync still sends an open/close
- * sync char at the start/end of a frame. Try to match those sync
- * patterns to the idle mode set here
- */
- if ( info->params.mode == MGSL_MODE_RAW ) {
- unsigned char syncpat = 0;
- switch( info->idle_mode ) {
- case HDLC_TXIDLE_FLAGS:
- syncpat = 0x7e;
- break;
- case HDLC_TXIDLE_ALT_ZEROS_ONES:
- syncpat = 0x55;
- break;
- case HDLC_TXIDLE_ZEROS:
- case HDLC_TXIDLE_SPACE:
- syncpat = 0x00;
- break;
- case HDLC_TXIDLE_ONES:
- case HDLC_TXIDLE_MARK:
- syncpat = 0xff;
- break;
- case HDLC_TXIDLE_ALT_MARK_SPACE:
- syncpat = 0xaa;
- break;
- }
-
- usc_SetTransmitSyncChars(info,syncpat,syncpat);
- }
-
-} /* end of usc_set_txidle() */
-
-/* usc_get_serial_signals()
- *
- * Query the adapter for the state of the V24 status (input) signals.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_get_serial_signals( struct mgsl_struct *info )
-{
- u16 status;
-
- /* clear all serial signals except DTR and RTS */
- info->serial_signals &= SerialSignal_DTR + SerialSignal_RTS;
-
- /* Read the Misc Interrupt status Register (MISR) to get */
- /* the V24 status signals. */
-
- status = usc_InReg( info, MISR );
-
- /* set serial signal bits to reflect MISR */
-
- if ( status & MISCSTATUS_CTS )
- info->serial_signals |= SerialSignal_CTS;
-
- if ( status & MISCSTATUS_DCD )
- info->serial_signals |= SerialSignal_DCD;
-
- if ( status & MISCSTATUS_RI )
- info->serial_signals |= SerialSignal_RI;
-
- if ( status & MISCSTATUS_DSR )
- info->serial_signals |= SerialSignal_DSR;
-
-} /* end of usc_get_serial_signals() */
-
-/* usc_set_serial_signals()
- *
- * Set the state of DTR and RTS based on contents of
- * serial_signals member of device extension.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void usc_set_serial_signals( struct mgsl_struct *info )
-{
- u16 Control;
- unsigned char V24Out = info->serial_signals;
-
- /* get the current value of the Port Control Register (PCR) */
-
- Control = usc_InReg( info, PCR );
-
- if ( V24Out & SerialSignal_RTS )
- Control &= ~(BIT6);
- else
- Control |= BIT6;
-
- if ( V24Out & SerialSignal_DTR )
- Control &= ~(BIT4);
- else
- Control |= BIT4;
-
- usc_OutReg( info, PCR, Control );
-
-} /* end of usc_set_serial_signals() */
-
-/* usc_enable_async_clock()
- *
- * Enable the async clock at the specified frequency.
- *
- * Arguments: info pointer to device instance data
- * data_rate data rate of clock in bps
- * 0 disables the AUX clock.
- * Return Value: None
- */
-static void usc_enable_async_clock( struct mgsl_struct *info, u32 data_rate )
-{
- if ( data_rate ) {
- /*
- * Clock mode Control Register (CMCR)
- *
- * <15..14> 00 counter 1 Disabled
- * <13..12> 00 counter 0 Disabled
- * <11..10> 11 BRG1 Input is TxC Pin
- * <9..8> 11 BRG0 Input is TxC Pin
- * <7..6> 01 DPLL Input is BRG1 Output
- * <5..3> 100 TxCLK comes from BRG0
- * <2..0> 100 RxCLK comes from BRG0
- *
- * 0000 1111 0110 0100 = 0x0f64
- */
-
- usc_OutReg( info, CMCR, 0x0f64 );
-
-
- /*
- * Write 16-bit Time Constant for BRG0
- * Time Constant = (ClkSpeed / data_rate) - 1
- * ClkSpeed = 921600 (ISA), 691200 (PCI)
- */
-
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- usc_OutReg( info, TC0R, (u16)((691200/data_rate) - 1) );
- else
- usc_OutReg( info, TC0R, (u16)((921600/data_rate) - 1) );
-
-
- /*
- * Hardware Configuration Register (HCR)
- * Clear Bit 1, BRG0 mode = Continuous
- * Set Bit 0 to enable BRG0.
- */
-
- usc_OutReg( info, HCR,
- (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );
-
-
- /* Input/Output Control Reg, <2..0> = 100, Drive RxC pin with BRG0 */
-
- usc_OutReg( info, IOCR,
- (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004) );
- } else {
- /* data rate == 0 so turn off BRG0 */
- usc_OutReg( info, HCR, (u16)(usc_InReg( info, HCR ) & ~BIT0) );
- }
-
-} /* end of usc_enable_async_clock() */
-
-/*
- * Buffer Structures:
- *
- * Normal memory access uses virtual addresses that can make discontiguous
- * physical memory pages appear to be contiguous in the virtual address
- * space (the processors memory mapping handles the conversions).
- *
- * DMA transfers require physically contiguous memory. This is because
- * the DMA system controller and DMA bus masters deal with memory using
- * only physical addresses.
- *
- * This causes a problem under Windows NT when large DMA buffers are
- * needed. Fragmentation of the nonpaged pool prevents allocations of
- * physically contiguous buffers larger than the PAGE_SIZE.
- *
- * However the 16C32 supports Bus Master Scatter/Gather DMA which
- * allows DMA transfers to physically discontiguous buffers. Information
- * about each data transfer buffer is contained in a memory structure
- * called a 'buffer entry'. A list of buffer entries is maintained
- * to track and control the use of the data transfer buffers.
- *
- * To support this strategy we will allocate sufficient PAGE_SIZE
- * contiguous memory buffers to allow for the total required buffer
- * space.
- *
- * The 16C32 accesses the list of buffer entries using Bus Master
- * DMA. Control information is read from the buffer entries by the
- * 16C32 to control data transfers. status information is written to
- * the buffer entries by the 16C32 to indicate the status of completed
- * transfers.
- *
- * The CPU writes control information to the buffer entries to control
- * the 16C32 and reads status information from the buffer entries to
- * determine information about received and transmitted frames.
- *
- * Because the CPU and 16C32 (adapter) both need simultaneous access
- * to the buffer entries, the buffer entry memory is allocated with
- * HalAllocateCommonBuffer(). This restricts the size of the buffer
- * entry list to PAGE_SIZE.
- *
- * The actual data buffers on the other hand will only be accessed
- * by the CPU or the adapter but not by both simultaneously. This allows
- * Scatter/Gather packet based DMA procedures for using physically
- * discontiguous pages.
- */
-
-/*
- * mgsl_reset_tx_dma_buffers()
- *
- * Set the count for all transmit buffers to 0 to indicate the
- * buffer is available for use and set the current buffer to the
- * first buffer. This effectively makes all buffers free and
- * discards any data in buffers.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info )
-{
- unsigned int i;
-
- for ( i = 0; i < info->tx_buffer_count; i++ ) {
- *((unsigned long *)&(info->tx_buffer_list[i].count)) = 0;
- }
-
- info->current_tx_buffer = 0;
- info->start_tx_dma_buffer = 0;
- info->tx_dma_buffers_used = 0;
-
- info->get_tx_holding_index = 0;
- info->put_tx_holding_index = 0;
- info->tx_holding_count = 0;
-
-} /* end of mgsl_reset_tx_dma_buffers() */
-
-/*
- * num_free_tx_dma_buffers()
- *
- * returns the number of free tx dma buffers available
- *
- * Arguments: info pointer to device instance data
- * Return Value: number of free tx dma buffers
- */
-static int num_free_tx_dma_buffers(struct mgsl_struct *info)
-{
- return info->tx_buffer_count - info->tx_dma_buffers_used;
-}
-
-/*
- * mgsl_reset_rx_dma_buffers()
- *
- * Set the count for all receive buffers to DMABUFFERSIZE
- * and set the current buffer to the first buffer. This effectively
- * makes all buffers free and discards any data in buffers.
- *
- * Arguments: info pointer to device instance data
- * Return Value: None
- */
-static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info )
-{
- unsigned int i;
-
- for ( i = 0; i < info->rx_buffer_count; i++ ) {
- *((unsigned long *)&(info->rx_buffer_list[i].count)) = DMABUFFERSIZE;
-// info->rx_buffer_list[i].count = DMABUFFERSIZE;
-// info->rx_buffer_list[i].status = 0;
- }
-
- info->current_rx_buffer = 0;
-
-} /* end of mgsl_reset_rx_dma_buffers() */
-
-/*
- * mgsl_free_rx_frame_buffers()
- *
- * Free the receive buffers used by a received SDLC
- * frame such that the buffers can be reused.
- *
- * Arguments:
- *
- * info pointer to device instance data
- * StartIndex index of 1st receive buffer of frame
- * EndIndex index of last receive buffer of frame
- *
- * Return Value: None
- */
-static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned int EndIndex )
-{
- bool Done = false;
- DMABUFFERENTRY *pBufEntry;
- unsigned int Index;
-
- /* Starting with 1st buffer entry of the frame clear the status */
- /* field and set the count field to DMA Buffer Size. */
-
- Index = StartIndex;
-
- while( !Done ) {
- pBufEntry = &(info->rx_buffer_list[Index]);
-
- if ( Index == EndIndex ) {
- /* This is the last buffer of the frame! */
- Done = true;
- }
-
- /* reset current buffer for reuse */
-// pBufEntry->status = 0;
-// pBufEntry->count = DMABUFFERSIZE;
- *((unsigned long *)&(pBufEntry->count)) = DMABUFFERSIZE;
-
- /* advance to next buffer entry in linked list */
- Index++;
- if ( Index == info->rx_buffer_count )
- Index = 0;
- }
-
- /* set current buffer to next buffer after last buffer of frame */
- info->current_rx_buffer = Index;
-
-} /* end of free_rx_frame_buffers() */
-
-/* mgsl_get_rx_frame()
- *
- * This function attempts to return a received SDLC frame from the
- * receive DMA buffers. Only frames received without errors are returned.
- *
- * Arguments: info pointer to device extension
- * Return Value: true if frame returned, otherwise false
- */
-static bool mgsl_get_rx_frame(struct mgsl_struct *info)
-{
- unsigned int StartIndex, EndIndex; /* index of 1st and last buffers of Rx frame */
- unsigned short status;
- DMABUFFERENTRY *pBufEntry;
- unsigned int framesize = 0;
- bool ReturnCode = false;
- unsigned long flags;
- struct tty_struct *tty = info->port.tty;
- bool return_frame = false;
-
- /*
- * current_rx_buffer points to the 1st buffer of the next available
- * receive frame. To find the last buffer of the frame look for
- * a non-zero status field in the buffer entries. (The status
- * field is set by the 16C32 after completing a receive frame.
- */
-
- StartIndex = EndIndex = info->current_rx_buffer;
-
- while( !info->rx_buffer_list[EndIndex].status ) {
- /*
- * If the count field of the buffer entry is non-zero then
- * this buffer has not been used. (The 16C32 clears the count
- * field when it starts using the buffer.) If an unused buffer
- * is encountered then there are no frames available.
- */
-
- if ( info->rx_buffer_list[EndIndex].count )
- goto Cleanup;
-
- /* advance to next buffer entry in linked list */
- EndIndex++;
- if ( EndIndex == info->rx_buffer_count )
- EndIndex = 0;
-
- /* if entire list searched then no frame available */
- if ( EndIndex == StartIndex ) {
- /* If this occurs then something bad happened,
- * all buffers have been 'used' but none mark
- * the end of a frame. Reset buffers and receiver.
- */
-
- if ( info->rx_enabled ){
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_start_receiver(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
- goto Cleanup;
- }
- }
-
-
- /* check status of receive frame */
-
- status = info->rx_buffer_list[EndIndex].status;
-
- if ( status & (RXSTATUS_SHORT_FRAME + RXSTATUS_OVERRUN +
- RXSTATUS_CRC_ERROR + RXSTATUS_ABORT) ) {
- if ( status & RXSTATUS_SHORT_FRAME )
- info->icount.rxshort++;
- else if ( status & RXSTATUS_ABORT )
- info->icount.rxabort++;
- else if ( status & RXSTATUS_OVERRUN )
- info->icount.rxover++;
- else {
- info->icount.rxcrc++;
- if ( info->params.crc_type & HDLC_CRC_RETURN_EX )
- return_frame = true;
- }
- framesize = 0;
-#if SYNCLINK_GENERIC_HDLC
- {
- info->netdev->stats.rx_errors++;
- info->netdev->stats.rx_frame_errors++;
- }
-#endif
- } else
- return_frame = true;
-
- if ( return_frame ) {
- /* receive frame has no errors, get frame size.
- * The frame size is the starting value of the RCC (which was
- * set to 0xffff) minus the ending value of the RCC (decremented
- * once for each receive character) minus 2 for the 16-bit CRC.
- */
-
- framesize = RCLRVALUE - info->rx_buffer_list[EndIndex].rcc;
-
- /* adjust frame size for CRC if any */
- if ( info->params.crc_type == HDLC_CRC_16_CCITT )
- framesize -= 2;
- else if ( info->params.crc_type == HDLC_CRC_32_CCITT )
- framesize -= 4;
- }
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk("%s(%d):mgsl_get_rx_frame(%s) status=%04X size=%d\n",
- __FILE__,__LINE__,info->device_name,status,framesize);
-
- if ( debug_level >= DEBUG_LEVEL_DATA )
- mgsl_trace_block(info,info->rx_buffer_list[StartIndex].virt_addr,
- min_t(int, framesize, DMABUFFERSIZE),0);
-
- if (framesize) {
- if ( ( (info->params.crc_type & HDLC_CRC_RETURN_EX) &&
- ((framesize+1) > info->max_frame_size) ) ||
- (framesize > info->max_frame_size) )
- info->icount.rxlong++;
- else {
- /* copy dma buffer(s) to contiguous intermediate buffer */
- int copy_count = framesize;
- int index = StartIndex;
- unsigned char *ptmp = info->intermediate_rxbuffer;
-
- if ( !(status & RXSTATUS_CRC_ERROR))
- info->icount.rxok++;
-
- while(copy_count) {
- int partial_count;
- if ( copy_count > DMABUFFERSIZE )
- partial_count = DMABUFFERSIZE;
- else
- partial_count = copy_count;
-
- pBufEntry = &(info->rx_buffer_list[index]);
- memcpy( ptmp, pBufEntry->virt_addr, partial_count );
- ptmp += partial_count;
- copy_count -= partial_count;
-
- if ( ++index == info->rx_buffer_count )
- index = 0;
- }
-
- if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) {
- ++framesize;
- *ptmp = (status & RXSTATUS_CRC_ERROR ?
- RX_CRC_ERROR :
- RX_OK);
-
- if ( debug_level >= DEBUG_LEVEL_DATA )
- printk("%s(%d):mgsl_get_rx_frame(%s) rx frame status=%d\n",
- __FILE__,__LINE__,info->device_name,
- *ptmp);
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_rx(info,info->intermediate_rxbuffer,framesize);
- else
-#endif
- ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize);
- }
- }
- /* Free the buffers used by this frame. */
- mgsl_free_rx_frame_buffers( info, StartIndex, EndIndex );
-
- ReturnCode = true;
-
-Cleanup:
-
- if ( info->rx_enabled && info->rx_overflow ) {
- /* The receiver needs to restarted because of
- * a receive overflow (buffer or FIFO). If the
- * receive buffers are now empty, then restart receiver.
- */
-
- if ( !info->rx_buffer_list[EndIndex].status &&
- info->rx_buffer_list[EndIndex].count ) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_start_receiver(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
- }
-
- return ReturnCode;
-
-} /* end of mgsl_get_rx_frame() */
-
-/* mgsl_get_raw_rx_frame()
- *
- * This function attempts to return a received frame from the
- * receive DMA buffers when running in external loop mode. In this mode,
- * we will return at most one DMABUFFERSIZE frame to the application.
- * The USC receiver is triggering off of DCD going active to start a new
- * frame, and DCD going inactive to terminate the frame (similar to
- * processing a closing flag character).
- *
- * In this routine, we will return DMABUFFERSIZE "chunks" at a time.
- * If DCD goes inactive, the last Rx DMA Buffer will have a non-zero
- * status field and the RCC field will indicate the length of the
- * entire received frame. We take this RCC field and get the modulus
- * of RCC and DMABUFFERSIZE to determine if number of bytes in the
- * last Rx DMA buffer and return that last portion of the frame.
- *
- * Arguments: info pointer to device extension
- * Return Value: true if frame returned, otherwise false
- */
-static bool mgsl_get_raw_rx_frame(struct mgsl_struct *info)
-{
- unsigned int CurrentIndex, NextIndex;
- unsigned short status;
- DMABUFFERENTRY *pBufEntry;
- unsigned int framesize = 0;
- bool ReturnCode = false;
- unsigned long flags;
- struct tty_struct *tty = info->port.tty;
-
- /*
- * current_rx_buffer points to the 1st buffer of the next available
- * receive frame. The status field is set by the 16C32 after
- * completing a receive frame. If the status field of this buffer
- * is zero, either the USC is still filling this buffer or this
- * is one of a series of buffers making up a received frame.
- *
- * If the count field of this buffer is zero, the USC is either
- * using this buffer or has used this buffer. Look at the count
- * field of the next buffer. If that next buffer's count is
- * non-zero, the USC is still actively using the current buffer.
- * Otherwise, if the next buffer's count field is zero, the
- * current buffer is complete and the USC is using the next
- * buffer.
- */
- CurrentIndex = NextIndex = info->current_rx_buffer;
- ++NextIndex;
- if ( NextIndex == info->rx_buffer_count )
- NextIndex = 0;
-
- if ( info->rx_buffer_list[CurrentIndex].status != 0 ||
- (info->rx_buffer_list[CurrentIndex].count == 0 &&
- info->rx_buffer_list[NextIndex].count == 0)) {
- /*
- * Either the status field of this dma buffer is non-zero
- * (indicating the last buffer of a receive frame) or the next
- * buffer is marked as in use -- implying this buffer is complete
- * and an intermediate buffer for this received frame.
- */
-
- status = info->rx_buffer_list[CurrentIndex].status;
-
- if ( status & (RXSTATUS_SHORT_FRAME + RXSTATUS_OVERRUN +
- RXSTATUS_CRC_ERROR + RXSTATUS_ABORT) ) {
- if ( status & RXSTATUS_SHORT_FRAME )
- info->icount.rxshort++;
- else if ( status & RXSTATUS_ABORT )
- info->icount.rxabort++;
- else if ( status & RXSTATUS_OVERRUN )
- info->icount.rxover++;
- else
- info->icount.rxcrc++;
- framesize = 0;
- } else {
- /*
- * A receive frame is available, get frame size and status.
- *
- * The frame size is the starting value of the RCC (which was
- * set to 0xffff) minus the ending value of the RCC (decremented
- * once for each receive character) minus 2 or 4 for the 16-bit
- * or 32-bit CRC.
- *
- * If the status field is zero, this is an intermediate buffer.
- * It's size is 4K.
- *
- * If the DMA Buffer Entry's Status field is non-zero, the
- * receive operation completed normally (ie: DCD dropped). The
- * RCC field is valid and holds the received frame size.
- * It is possible that the RCC field will be zero on a DMA buffer
- * entry with a non-zero status. This can occur if the total
- * frame size (number of bytes between the time DCD goes active
- * to the time DCD goes inactive) exceeds 65535 bytes. In this
- * case the 16C32 has underrun on the RCC count and appears to
- * stop updating this counter to let us know the actual received
- * frame size. If this happens (non-zero status and zero RCC),
- * simply return the entire RxDMA Buffer
- */
- if ( status ) {
- /*
- * In the event that the final RxDMA Buffer is
- * terminated with a non-zero status and the RCC
- * field is zero, we interpret this as the RCC
- * having underflowed (received frame > 65535 bytes).
- *
- * Signal the event to the user by passing back
- * a status of RxStatus_CrcError returning the full
- * buffer and let the app figure out what data is
- * actually valid
- */
- if ( info->rx_buffer_list[CurrentIndex].rcc )
- framesize = RCLRVALUE - info->rx_buffer_list[CurrentIndex].rcc;
- else
- framesize = DMABUFFERSIZE;
- }
- else
- framesize = DMABUFFERSIZE;
- }
-
- if ( framesize > DMABUFFERSIZE ) {
- /*
- * if running in raw sync mode, ISR handler for
- * End Of Buffer events terminates all buffers at 4K.
- * If this frame size is said to be >4K, get the
- * actual number of bytes of the frame in this buffer.
- */
- framesize = framesize % DMABUFFERSIZE;
- }
-
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk("%s(%d):mgsl_get_raw_rx_frame(%s) status=%04X size=%d\n",
- __FILE__,__LINE__,info->device_name,status,framesize);
-
- if ( debug_level >= DEBUG_LEVEL_DATA )
- mgsl_trace_block(info,info->rx_buffer_list[CurrentIndex].virt_addr,
- min_t(int, framesize, DMABUFFERSIZE),0);
-
- if (framesize) {
- /* copy dma buffer(s) to contiguous intermediate buffer */
- /* NOTE: we never copy more than DMABUFFERSIZE bytes */
-
- pBufEntry = &(info->rx_buffer_list[CurrentIndex]);
- memcpy( info->intermediate_rxbuffer, pBufEntry->virt_addr, framesize);
- info->icount.rxok++;
-
- ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize);
- }
-
- /* Free the buffers used by this frame. */
- mgsl_free_rx_frame_buffers( info, CurrentIndex, CurrentIndex );
-
- ReturnCode = true;
- }
-
-
- if ( info->rx_enabled && info->rx_overflow ) {
- /* The receiver needs to restarted because of
- * a receive overflow (buffer or FIFO). If the
- * receive buffers are now empty, then restart receiver.
- */
-
- if ( !info->rx_buffer_list[CurrentIndex].status &&
- info->rx_buffer_list[CurrentIndex].count ) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_start_receiver(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
- }
-
- return ReturnCode;
-
-} /* end of mgsl_get_raw_rx_frame() */
-
-/* mgsl_load_tx_dma_buffer()
- *
- * Load the transmit DMA buffer with the specified data.
- *
- * Arguments:
- *
- * info pointer to device extension
- * Buffer pointer to buffer containing frame to load
- * BufferSize size in bytes of frame in Buffer
- *
- * Return Value: None
- */
-static void mgsl_load_tx_dma_buffer(struct mgsl_struct *info,
- const char *Buffer, unsigned int BufferSize)
-{
- unsigned short Copycount;
- unsigned int i = 0;
- DMABUFFERENTRY *pBufEntry;
-
- if ( debug_level >= DEBUG_LEVEL_DATA )
- mgsl_trace_block(info,Buffer, min_t(int, BufferSize, DMABUFFERSIZE), 1);
-
- if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) {
- /* set CMR:13 to start transmit when
- * next GoAhead (abort) is received
- */
- info->cmr_value |= BIT13;
- }
-
- /* begin loading the frame in the next available tx dma
- * buffer, remember it's starting location for setting
- * up tx dma operation
- */
- i = info->current_tx_buffer;
- info->start_tx_dma_buffer = i;
-
- /* Setup the status and RCC (Frame Size) fields of the 1st */
- /* buffer entry in the transmit DMA buffer list. */
-
- info->tx_buffer_list[i].status = info->cmr_value & 0xf000;
- info->tx_buffer_list[i].rcc = BufferSize;
- info->tx_buffer_list[i].count = BufferSize;
-
- /* Copy frame data from 1st source buffer to the DMA buffers. */
- /* The frame data may span multiple DMA buffers. */
-
- while( BufferSize ){
- /* Get a pointer to next DMA buffer entry. */
- pBufEntry = &info->tx_buffer_list[i++];
-
- if ( i == info->tx_buffer_count )
- i=0;
-
- /* Calculate the number of bytes that can be copied from */
- /* the source buffer to this DMA buffer. */
- if ( BufferSize > DMABUFFERSIZE )
- Copycount = DMABUFFERSIZE;
- else
- Copycount = BufferSize;
-
- /* Actually copy data from source buffer to DMA buffer. */
- /* Also set the data count for this individual DMA buffer. */
- if ( info->bus_type == MGSL_BUS_TYPE_PCI )
- mgsl_load_pci_memory(pBufEntry->virt_addr, Buffer,Copycount);
- else
- memcpy(pBufEntry->virt_addr, Buffer, Copycount);
-
- pBufEntry->count = Copycount;
-
- /* Advance source pointer and reduce remaining data count. */
- Buffer += Copycount;
- BufferSize -= Copycount;
-
- ++info->tx_dma_buffers_used;
- }
-
- /* remember next available tx dma buffer */
- info->current_tx_buffer = i;
-
-} /* end of mgsl_load_tx_dma_buffer() */
-
-/*
- * mgsl_register_test()
- *
- * Performs a register test of the 16C32.
- *
- * Arguments: info pointer to device instance data
- * Return Value: true if test passed, otherwise false
- */
-static bool mgsl_register_test( struct mgsl_struct *info )
-{
- static unsigned short BitPatterns[] =
- { 0x0000, 0xffff, 0xaaaa, 0x5555, 0x1234, 0x6969, 0x9696, 0x0f0f };
- static unsigned int Patterncount = ARRAY_SIZE(BitPatterns);
- unsigned int i;
- bool rc = true;
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_reset(info);
-
- /* Verify the reset state of some registers. */
-
- if ( (usc_InReg( info, SICR ) != 0) ||
- (usc_InReg( info, IVR ) != 0) ||
- (usc_InDmaReg( info, DIVR ) != 0) ){
- rc = false;
- }
-
- if ( rc ){
- /* Write bit patterns to various registers but do it out of */
- /* sync, then read back and verify values. */
-
- for ( i = 0 ; i < Patterncount ; i++ ) {
- usc_OutReg( info, TC0R, BitPatterns[i] );
- usc_OutReg( info, TC1R, BitPatterns[(i+1)%Patterncount] );
- usc_OutReg( info, TCLR, BitPatterns[(i+2)%Patterncount] );
- usc_OutReg( info, RCLR, BitPatterns[(i+3)%Patterncount] );
- usc_OutReg( info, RSR, BitPatterns[(i+4)%Patterncount] );
- usc_OutDmaReg( info, TBCR, BitPatterns[(i+5)%Patterncount] );
-
- if ( (usc_InReg( info, TC0R ) != BitPatterns[i]) ||
- (usc_InReg( info, TC1R ) != BitPatterns[(i+1)%Patterncount]) ||
- (usc_InReg( info, TCLR ) != BitPatterns[(i+2)%Patterncount]) ||
- (usc_InReg( info, RCLR ) != BitPatterns[(i+3)%Patterncount]) ||
- (usc_InReg( info, RSR ) != BitPatterns[(i+4)%Patterncount]) ||
- (usc_InDmaReg( info, TBCR ) != BitPatterns[(i+5)%Patterncount]) ){
- rc = false;
- break;
- }
- }
- }
-
- usc_reset(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- return rc;
-
-} /* end of mgsl_register_test() */
-
-/* mgsl_irq_test() Perform interrupt test of the 16C32.
- *
- * Arguments: info pointer to device instance data
- * Return Value: true if test passed, otherwise false
- */
-static bool mgsl_irq_test( struct mgsl_struct *info )
-{
- unsigned long EndTime;
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_reset(info);
-
- /*
- * Setup 16C32 to interrupt on TxC pin (14MHz clock) transition.
- * The ISR sets irq_occurred to true.
- */
-
- info->irq_occurred = false;
-
- /* Enable INTEN gate for ISA adapter (Port 6, Bit12) */
- /* Enable INTEN (Port 6, Bit12) */
- /* This connects the IRQ request signal to the ISA bus */
- /* on the ISA adapter. This has no effect for the PCI adapter */
- usc_OutReg( info, PCR, (unsigned short)((usc_InReg(info, PCR) | BIT13) & ~BIT12) );
-
- usc_EnableMasterIrqBit(info);
- usc_EnableInterrupts(info, IO_PIN);
- usc_ClearIrqPendingBits(info, IO_PIN);
-
- usc_UnlatchIostatusBits(info, MISCSTATUS_TXC_LATCHED);
- usc_EnableStatusIrqs(info, SICR_TXC_ACTIVE + SICR_TXC_INACTIVE);
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- EndTime=100;
- while( EndTime-- && !info->irq_occurred ) {
- msleep_interruptible(10);
- }
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_reset(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- return info->irq_occurred;
-
-} /* end of mgsl_irq_test() */
-
-/* mgsl_dma_test()
- *
- * Perform a DMA test of the 16C32. A small frame is
- * transmitted via DMA from a transmit buffer to a receive buffer
- * using single buffer DMA mode.
- *
- * Arguments: info pointer to device instance data
- * Return Value: true if test passed, otherwise false
- */
-static bool mgsl_dma_test( struct mgsl_struct *info )
-{
- unsigned short FifoLevel;
- unsigned long phys_addr;
- unsigned int FrameSize;
- unsigned int i;
- char *TmpPtr;
- bool rc = true;
- unsigned short status=0;
- unsigned long EndTime;
- unsigned long flags;
- MGSL_PARAMS tmp_params;
-
- /* save current port options */
- memcpy(&tmp_params,&info->params,sizeof(MGSL_PARAMS));
- /* load default port options */
- memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
-
-#define TESTFRAMESIZE 40
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- /* setup 16C32 for SDLC DMA transfer mode */
-
- usc_reset(info);
- usc_set_sdlc_mode(info);
- usc_enable_loopback(info,1);
-
- /* Reprogram the RDMR so that the 16C32 does NOT clear the count
- * field of the buffer entry after fetching buffer address. This
- * way we can detect a DMA failure for a DMA read (which should be
- * non-destructive to system memory) before we try and write to
- * memory (where a failure could corrupt system memory).
- */
-
- /* Receive DMA mode Register (RDMR)
- *
- * <15..14> 11 DMA mode = Linked List Buffer mode
- * <13> 1 RSBinA/L = store Rx status Block in List entry
- * <12> 0 1 = Clear count of List Entry after fetching
- * <11..10> 00 Address mode = Increment
- * <9> 1 Terminate Buffer on RxBound
- * <8> 0 Bus Width = 16bits
- * <7..0> ? status Bits (write as 0s)
- *
- * 1110 0010 0000 0000 = 0xe200
- */
-
- usc_OutDmaReg( info, RDMR, 0xe200 );
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
- /* SETUP TRANSMIT AND RECEIVE DMA BUFFERS */
-
- FrameSize = TESTFRAMESIZE;
-
- /* setup 1st transmit buffer entry: */
- /* with frame size and transmit control word */
-
- info->tx_buffer_list[0].count = FrameSize;
- info->tx_buffer_list[0].rcc = FrameSize;
- info->tx_buffer_list[0].status = 0x4000;
-
- /* build a transmit frame in 1st transmit DMA buffer */
-
- TmpPtr = info->tx_buffer_list[0].virt_addr;
- for (i = 0; i < FrameSize; i++ )
- *TmpPtr++ = i;
-
- /* setup 1st receive buffer entry: */
- /* clear status, set max receive buffer size */
-
- info->rx_buffer_list[0].status = 0;
- info->rx_buffer_list[0].count = FrameSize + 4;
-
- /* zero out the 1st receive buffer */
-
- memset( info->rx_buffer_list[0].virt_addr, 0, FrameSize + 4 );
-
- /* Set count field of next buffer entries to prevent */
- /* 16C32 from using buffers after the 1st one. */
-
- info->tx_buffer_list[1].count = 0;
- info->rx_buffer_list[1].count = 0;
-
-
- /***************************/
- /* Program 16C32 receiver. */
- /***************************/
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- /* setup DMA transfers */
- usc_RTCmd( info, RTCmd_PurgeRxFifo );
-
- /* program 16C32 receiver with physical address of 1st DMA buffer entry */
- phys_addr = info->rx_buffer_list[0].phys_entry;
- usc_OutDmaReg( info, NRARL, (unsigned short)phys_addr );
- usc_OutDmaReg( info, NRARU, (unsigned short)(phys_addr >> 16) );
-
- /* Clear the Rx DMA status bits (read RDMR) and start channel */
- usc_InDmaReg( info, RDMR );
- usc_DmaCmd( info, DmaCmd_InitRxChannel );
-
- /* Enable Receiver (RMR <1..0> = 10) */
- usc_OutReg( info, RMR, (unsigned short)((usc_InReg(info, RMR) & 0xfffc) | 0x0002) );
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
- /*************************************************************/
- /* WAIT FOR RECEIVER TO DMA ALL PARAMETERS FROM BUFFER ENTRY */
- /*************************************************************/
-
- /* Wait 100ms for interrupt. */
- EndTime = jiffies + msecs_to_jiffies(100);
-
- for(;;) {
- if (time_after(jiffies, EndTime)) {
- rc = false;
- break;
- }
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- status = usc_InDmaReg( info, RDMR );
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- if ( !(status & BIT4) && (status & BIT5) ) {
- /* INITG (BIT 4) is inactive (no entry read in progress) AND */
- /* BUSY (BIT 5) is active (channel still active). */
- /* This means the buffer entry read has completed. */
- break;
- }
- }
-
-
- /******************************/
- /* Program 16C32 transmitter. */
- /******************************/
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- /* Program the Transmit Character Length Register (TCLR) */
- /* and clear FIFO (TCC is loaded with TCLR on FIFO clear) */
-
- usc_OutReg( info, TCLR, (unsigned short)info->tx_buffer_list[0].count );
- usc_RTCmd( info, RTCmd_PurgeTxFifo );
-
- /* Program the address of the 1st DMA Buffer Entry in linked list */
-
- phys_addr = info->tx_buffer_list[0].phys_entry;
- usc_OutDmaReg( info, NTARL, (unsigned short)phys_addr );
- usc_OutDmaReg( info, NTARU, (unsigned short)(phys_addr >> 16) );
-
- /* unlatch Tx status bits, and start transmit channel. */
-
- usc_OutReg( info, TCSR, (unsigned short)(( usc_InReg(info, TCSR) & 0x0f00) | 0xfa) );
- usc_DmaCmd( info, DmaCmd_InitTxChannel );
-
- /* wait for DMA controller to fill transmit FIFO */
-
- usc_TCmd( info, TCmd_SelectTicrTxFifostatus );
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
- /**********************************/
- /* WAIT FOR TRANSMIT FIFO TO FILL */
- /**********************************/
-
- /* Wait 100ms */
- EndTime = jiffies + msecs_to_jiffies(100);
-
- for(;;) {
- if (time_after(jiffies, EndTime)) {
- rc = false;
- break;
- }
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- FifoLevel = usc_InReg(info, TICR) >> 8;
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- if ( FifoLevel < 16 )
- break;
- else
- if ( FrameSize < 32 ) {
- /* This frame is smaller than the entire transmit FIFO */
- /* so wait for the entire frame to be loaded. */
- if ( FifoLevel <= (32 - FrameSize) )
- break;
- }
- }
-
-
- if ( rc )
- {
- /* Enable 16C32 transmitter. */
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
-
- /* Transmit mode Register (TMR), <1..0> = 10, Enable Transmitter */
- usc_TCmd( info, TCmd_SendFrame );
- usc_OutReg( info, TMR, (unsigned short)((usc_InReg(info, TMR) & 0xfffc) | 0x0002) );
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-
- /******************************/
- /* WAIT FOR TRANSMIT COMPLETE */
- /******************************/
-
- /* Wait 100ms */
- EndTime = jiffies + msecs_to_jiffies(100);
-
- /* While timer not expired wait for transmit complete */
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- status = usc_InReg( info, TCSR );
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- while ( !(status & (BIT6+BIT5+BIT4+BIT2+BIT1)) ) {
- if (time_after(jiffies, EndTime)) {
- rc = false;
- break;
- }
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- status = usc_InReg( info, TCSR );
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
- }
-
-
- if ( rc ){
- /* CHECK FOR TRANSMIT ERRORS */
- if ( status & (BIT5 + BIT1) )
- rc = false;
- }
-
- if ( rc ) {
- /* WAIT FOR RECEIVE COMPLETE */
-
- /* Wait 100ms */
- EndTime = jiffies + msecs_to_jiffies(100);
-
- /* Wait for 16C32 to write receive status to buffer entry. */
- status=info->rx_buffer_list[0].status;
- while ( status == 0 ) {
- if (time_after(jiffies, EndTime)) {
- rc = false;
- break;
- }
- status=info->rx_buffer_list[0].status;
- }
- }
-
-
- if ( rc ) {
- /* CHECK FOR RECEIVE ERRORS */
- status = info->rx_buffer_list[0].status;
-
- if ( status & (BIT8 + BIT3 + BIT1) ) {
- /* receive error has occurred */
- rc = false;
- } else {
- if ( memcmp( info->tx_buffer_list[0].virt_addr ,
- info->rx_buffer_list[0].virt_addr, FrameSize ) ){
- rc = false;
- }
- }
- }
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_reset( info );
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- /* restore current port options */
- memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
-
- return rc;
-
-} /* end of mgsl_dma_test() */
-
-/* mgsl_adapter_test()
- *
- * Perform the register, IRQ, and DMA tests for the 16C32.
- *
- * Arguments: info pointer to device instance data
- * Return Value: 0 if success, otherwise -ENODEV
- */
-static int mgsl_adapter_test( struct mgsl_struct *info )
-{
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):Testing device %s\n",
- __FILE__,__LINE__,info->device_name );
-
- if ( !mgsl_register_test( info ) ) {
- info->init_error = DiagStatus_AddressFailure;
- printk( "%s(%d):Register test failure for device %s Addr=%04X\n",
- __FILE__,__LINE__,info->device_name, (unsigned short)(info->io_base) );
- return -ENODEV;
- }
-
- if ( !mgsl_irq_test( info ) ) {
- info->init_error = DiagStatus_IrqFailure;
- printk( "%s(%d):Interrupt test failure for device %s IRQ=%d\n",
- __FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) );
- return -ENODEV;
- }
-
- if ( !mgsl_dma_test( info ) ) {
- info->init_error = DiagStatus_DmaFailure;
- printk( "%s(%d):DMA test failure for device %s DMA=%d\n",
- __FILE__,__LINE__,info->device_name, (unsigned short)(info->dma_level) );
- return -ENODEV;
- }
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):device %s passed diagnostics\n",
- __FILE__,__LINE__,info->device_name );
-
- return 0;
-
-} /* end of mgsl_adapter_test() */
-
-/* mgsl_memory_test()
- *
- * Test the shared memory on a PCI adapter.
- *
- * Arguments: info pointer to device instance data
- * Return Value: true if test passed, otherwise false
- */
-static bool mgsl_memory_test( struct mgsl_struct *info )
-{
- static unsigned long BitPatterns[] =
- { 0x0, 0x55555555, 0xaaaaaaaa, 0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
- unsigned long Patterncount = ARRAY_SIZE(BitPatterns);
- unsigned long i;
- unsigned long TestLimit = SHARED_MEM_ADDRESS_SIZE/sizeof(unsigned long);
- unsigned long * TestAddr;
-
- if ( info->bus_type != MGSL_BUS_TYPE_PCI )
- return true;
-
- TestAddr = (unsigned long *)info->memory_base;
-
- /* Test data lines with test pattern at one location. */
-
- for ( i = 0 ; i < Patterncount ; i++ ) {
- *TestAddr = BitPatterns[i];
- if ( *TestAddr != BitPatterns[i] )
- return false;
- }
-
- /* Test address lines with incrementing pattern over */
- /* entire address range. */
-
- for ( i = 0 ; i < TestLimit ; i++ ) {
- *TestAddr = i * 4;
- TestAddr++;
- }
-
- TestAddr = (unsigned long *)info->memory_base;
-
- for ( i = 0 ; i < TestLimit ; i++ ) {
- if ( *TestAddr != i * 4 )
- return false;
- TestAddr++;
- }
-
- memset( info->memory_base, 0, SHARED_MEM_ADDRESS_SIZE );
-
- return true;
-
-} /* End Of mgsl_memory_test() */
-
-
-/* mgsl_load_pci_memory()
- *
- * Load a large block of data into the PCI shared memory.
- * Use this instead of memcpy() or memmove() to move data
- * into the PCI shared memory.
- *
- * Notes:
- *
- * This function prevents the PCI9050 interface chip from hogging
- * the adapter local bus, which can starve the 16C32 by preventing
- * 16C32 bus master cycles.
- *
- * The PCI9050 documentation says that the 9050 will always release
- * control of the local bus after completing the current read
- * or write operation.
- *
- * It appears that as long as the PCI9050 write FIFO is full, the
- * PCI9050 treats all of the writes as a single burst transaction
- * and will not release the bus. This causes DMA latency problems
- * at high speeds when copying large data blocks to the shared
- * memory.
- *
- * This function in effect, breaks the a large shared memory write
- * into multiple transations by interleaving a shared memory read
- * which will flush the write FIFO and 'complete' the write
- * transation. This allows any pending DMA request to gain control
- * of the local bus in a timely fasion.
- *
- * Arguments:
- *
- * TargetPtr pointer to target address in PCI shared memory
- * SourcePtr pointer to source buffer for data
- * count count in bytes of data to copy
- *
- * Return Value: None
- */
-static void mgsl_load_pci_memory( char* TargetPtr, const char* SourcePtr,
- unsigned short count )
-{
- /* 16 32-bit writes @ 60ns each = 960ns max latency on local bus */
-#define PCI_LOAD_INTERVAL 64
-
- unsigned short Intervalcount = count / PCI_LOAD_INTERVAL;
- unsigned short Index;
- unsigned long Dummy;
-
- for ( Index = 0 ; Index < Intervalcount ; Index++ )
- {
- memcpy(TargetPtr, SourcePtr, PCI_LOAD_INTERVAL);
- Dummy = *((volatile unsigned long *)TargetPtr);
- TargetPtr += PCI_LOAD_INTERVAL;
- SourcePtr += PCI_LOAD_INTERVAL;
- }
-
- memcpy( TargetPtr, SourcePtr, count % PCI_LOAD_INTERVAL );
-
-} /* End Of mgsl_load_pci_memory() */
-
-static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit)
-{
- int i;
- int linecount;
- if (xmit)
- printk("%s tx data:\n",info->device_name);
- else
- printk("%s rx data:\n",info->device_name);
-
- while(count) {
- if (count > 16)
- linecount = 16;
- else
- linecount = count;
-
- for(i=0;i<linecount;i++)
- printk("%02X ",(unsigned char)data[i]);
- for(;i<17;i++)
- printk(" ");
- for(i=0;i<linecount;i++) {
- if (data[i]>=040 && data[i]<=0176)
- printk("%c",data[i]);
- else
- printk(".");
- }
- printk("\n");
-
- data += linecount;
- count -= linecount;
- }
-} /* end of mgsl_trace_block() */
-
-/* mgsl_tx_timeout()
- *
- * called when HDLC frame times out
- * update stats and do tx completion processing
- *
- * Arguments: context pointer to device instance data
- * Return Value: None
- */
-static void mgsl_tx_timeout(unsigned long context)
-{
- struct mgsl_struct *info = (struct mgsl_struct*)context;
- unsigned long flags;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):mgsl_tx_timeout(%s)\n",
- __FILE__,__LINE__,info->device_name);
- if(info->tx_active &&
- (info->params.mode == MGSL_MODE_HDLC ||
- info->params.mode == MGSL_MODE_RAW) ) {
- info->icount.txtimeout++;
- }
- spin_lock_irqsave(&info->irq_spinlock,flags);
- info->tx_active = false;
- info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
-
- if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )
- usc_loopmode_cancel_transmit( info );
-
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_tx_done(info);
- else
-#endif
- mgsl_bh_transmit(info);
-
-} /* end of mgsl_tx_timeout() */
-
-/* signal that there are no more frames to send, so that
- * line is 'released' by echoing RxD to TxD when current
- * transmission is complete (or immediately if no tx in progress).
- */
-static int mgsl_loopmode_send_done( struct mgsl_struct * info )
-{
- unsigned long flags;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) {
- if (info->tx_active)
- info->loopmode_send_done_requested = true;
- else
- usc_loopmode_send_done(info);
- }
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- return 0;
-}
-
-/* release the line by echoing RxD to TxD
- * upon completion of a transmit frame
- */
-static void usc_loopmode_send_done( struct mgsl_struct * info )
-{
- info->loopmode_send_done_requested = false;
- /* clear CMR:13 to 0 to start echoing RxData to TxData */
- info->cmr_value &= ~BIT13;
- usc_OutReg(info, CMR, info->cmr_value);
-}
-
-/* abort a transmit in progress while in HDLC LoopMode
- */
-static void usc_loopmode_cancel_transmit( struct mgsl_struct * info )
-{
- /* reset tx dma channel and purge TxFifo */
- usc_RTCmd( info, RTCmd_PurgeTxFifo );
- usc_DmaCmd( info, DmaCmd_ResetTxChannel );
- usc_loopmode_send_done( info );
-}
-
-/* for HDLC/SDLC LoopMode, setting CMR:13 after the transmitter is enabled
- * is an Insert Into Loop action. Upon receipt of a GoAhead sequence (RxAbort)
- * we must clear CMR:13 to begin repeating TxData to RxData
- */
-static void usc_loopmode_insert_request( struct mgsl_struct * info )
-{
- info->loopmode_insert_requested = true;
-
- /* enable RxAbort irq. On next RxAbort, clear CMR:13 to
- * begin repeating TxData on RxData (complete insertion)
- */
- usc_OutReg( info, RICR,
- (usc_InReg( info, RICR ) | RXSTATUS_ABORT_RECEIVED ) );
-
- /* set CMR:13 to insert into loop on next GoAhead (RxAbort) */
- info->cmr_value |= BIT13;
- usc_OutReg(info, CMR, info->cmr_value);
-}
-
-/* return 1 if station is inserted into the loop, otherwise 0
- */
-static int usc_loopmode_active( struct mgsl_struct * info)
-{
- return usc_InReg( info, CCSR ) & BIT7 ? 1 : 0 ;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev pointer to network device structure
- * encoding serial encoding setting
- * parity FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
- unsigned short parity)
-{
- struct mgsl_struct *info = dev_to_port(dev);
- unsigned char new_encoding;
- unsigned short new_crctype;
-
- /* return error if TTY interface open */
- if (info->port.count)
- return -EBUSY;
-
- switch (encoding)
- {
- case ENCODING_NRZ: new_encoding = HDLC_ENCODING_NRZ; break;
- case ENCODING_NRZI: new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
- case ENCODING_FM_MARK: new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
- case ENCODING_FM_SPACE: new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
- case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
- default: return -EINVAL;
- }
-
- switch (parity)
- {
- case PARITY_NONE: new_crctype = HDLC_CRC_NONE; break;
- case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
- case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
- default: return -EINVAL;
- }
-
- info->params.encoding = new_encoding;
- info->params.crc_type = new_crctype;
-
- /* if network interface up, reprogram hardware */
- if (info->netcount)
- mgsl_program_hw(info);
-
- return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb socket buffer containing HDLC frame
- * dev pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct mgsl_struct *info = dev_to_port(dev);
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name);
-
- /* stop sending until this frame completes */
- netif_stop_queue(dev);
-
- /* copy data to device buffers */
- info->xmit_cnt = skb->len;
- mgsl_load_tx_dma_buffer(info, skb->data, skb->len);
-
- /* update network statistics */
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- /* done with socket buffer, so free it */
- dev_kfree_skb(skb);
-
- /* save start time for transmit timeout detection */
- dev->trans_start = jiffies;
-
- /* start hardware transmitter if necessary */
- spin_lock_irqsave(&info->irq_spinlock,flags);
- if (!info->tx_active)
- usc_start_transmitter(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
- struct mgsl_struct *info = dev_to_port(dev);
- int rc;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name);
-
- /* generic HDLC layer open processing */
- if ((rc = hdlc_open(dev)))
- return rc;
-
- /* arbitrate between network and tty opens */
- spin_lock_irqsave(&info->netlock, flags);
- if (info->port.count != 0 || info->netcount != 0) {
- printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
- spin_unlock_irqrestore(&info->netlock, flags);
- return -EBUSY;
- }
- info->netcount=1;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- /* claim resources and init adapter */
- if ((rc = startup(info)) != 0) {
- spin_lock_irqsave(&info->netlock, flags);
- info->netcount=0;
- spin_unlock_irqrestore(&info->netlock, flags);
- return rc;
- }
-
- /* assert DTR and RTS, apply hardware settings */
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- mgsl_program_hw(info);
-
- /* enable network layer transmit */
- dev->trans_start = jiffies;
- netif_start_queue(dev);
-
- /* inform generic HDLC layer of current DCD status */
- spin_lock_irqsave(&info->irq_spinlock, flags);
- usc_get_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock, flags);
- if (info->serial_signals & SerialSignal_DCD)
- netif_carrier_on(dev);
- else
- netif_carrier_off(dev);
- return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
- struct mgsl_struct *info = dev_to_port(dev);
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name);
-
- netif_stop_queue(dev);
-
- /* shutdown adapter and release resources */
- shutdown(info);
-
- hdlc_close(dev);
-
- spin_lock_irqsave(&info->netlock, flags);
- info->netcount=0;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev pointer to network device structure
- * ifr pointer to network interface request structure
- * cmd IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- const size_t size = sizeof(sync_serial_settings);
- sync_serial_settings new_line;
- sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
- struct mgsl_struct *info = dev_to_port(dev);
- unsigned int flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
-
- /* return error if TTY interface open */
- if (info->port.count)
- return -EBUSY;
-
- if (cmd != SIOCWANDEV)
- return hdlc_ioctl(dev, ifr, cmd);
-
- switch(ifr->ifr_settings.type) {
- case IF_GET_IFACE: /* return current sync_serial_settings */
-
- ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
- if (ifr->ifr_settings.size < size) {
- ifr->ifr_settings.size = size; /* data size wanted */
- return -ENOBUFS;
- }
-
- flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN);
-
- switch (flags){
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
- case (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG): new_line.clock_type = CLOCK_INT; break;
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG): new_line.clock_type = CLOCK_TXINT; break;
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
- default: new_line.clock_type = CLOCK_DEFAULT;
- }
-
- new_line.clock_rate = info->params.clock_speed;
- new_line.loopback = info->params.loopback ? 1:0;
-
- if (copy_to_user(line, &new_line, size))
- return -EFAULT;
- return 0;
-
- case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
- if(!capable(CAP_NET_ADMIN))
- return -EPERM;
- if (copy_from_user(&new_line, line, size))
- return -EFAULT;
-
- switch (new_line.clock_type)
- {
- case CLOCK_EXT: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
- case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
- case CLOCK_INT: flags = HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG; break;
- case CLOCK_TXINT: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG; break;
- case CLOCK_DEFAULT: flags = info->params.flags &
- (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN); break;
- default: return -EINVAL;
- }
-
- if (new_line.loopback != 0 && new_line.loopback != 1)
- return -EINVAL;
-
- info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN);
- info->params.flags |= flags;
-
- info->params.loopback = new_line.loopback;
-
- if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
- info->params.clock_speed = new_line.clock_rate;
- else
- info->params.clock_speed = 0;
-
- /* if network interface up, reprogram hardware */
- if (info->netcount)
- mgsl_program_hw(info);
- return 0;
-
- default:
- return hdlc_ioctl(dev, ifr, cmd);
- }
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
- struct mgsl_struct *info = dev_to_port(dev);
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("hdlcdev_tx_timeout(%s)\n",dev->name);
-
- dev->stats.tx_errors++;
- dev->stats.tx_aborted_errors++;
-
- spin_lock_irqsave(&info->irq_spinlock,flags);
- usc_stop_transmitter(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
-
- netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info pointer to device instance information
- */
-static void hdlcdev_tx_done(struct mgsl_struct *info)
-{
- if (netif_queue_stopped(info->netdev))
- netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info pointer to device instance information
- * buf pointer to buffer contianing frame data
- * size count of data bytes in buf
- */
-static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
-{
- struct sk_buff *skb = dev_alloc_skb(size);
- struct net_device *dev = info->netdev;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("hdlcdev_rx(%s)\n", dev->name);
-
- if (skb == NULL) {
- printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
- dev->name);
- dev->stats.rx_dropped++;
- return;
- }
-
- memcpy(skb_put(skb, size), buf, size);
-
- skb->protocol = hdlc_type_trans(skb, dev);
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += size;
-
- netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
- .ndo_open = hdlcdev_open,
- .ndo_stop = hdlcdev_close,
- .ndo_change_mtu = hdlc_change_mtu,
- .ndo_start_xmit = hdlc_start_xmit,
- .ndo_do_ioctl = hdlcdev_ioctl,
- .ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(struct mgsl_struct *info)
-{
- int rc;
- struct net_device *dev;
- hdlc_device *hdlc;
-
- /* allocate and initialize network and HDLC layer objects */
-
- if (!(dev = alloc_hdlcdev(info))) {
- printk(KERN_ERR "%s:hdlc device allocation failure\n",__FILE__);
- return -ENOMEM;
- }
-
- /* for network layer reporting purposes only */
- dev->base_addr = info->io_base;
- dev->irq = info->irq_level;
- dev->dma = info->dma_level;
-
- /* network layer callbacks and settings */
- dev->netdev_ops = &hdlcdev_ops;
- dev->watchdog_timeo = 10 * HZ;
- dev->tx_queue_len = 50;
-
- /* generic HDLC layer callbacks and settings */
- hdlc = dev_to_hdlc(dev);
- hdlc->attach = hdlcdev_attach;
- hdlc->xmit = hdlcdev_xmit;
-
- /* register objects with HDLC layer */
- if ((rc = register_hdlc_device(dev))) {
- printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
- free_netdev(dev);
- return rc;
- }
-
- info->netdev = dev;
- return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info pointer to device instance information
- */
-static void hdlcdev_exit(struct mgsl_struct *info)
-{
- unregister_hdlc_device(info->netdev);
- free_netdev(info->netdev);
- info->netdev = NULL;
-}
-
-#endif /* CONFIG_HDLC */
-
-
-static int __devinit synclink_init_one (struct pci_dev *dev,
- const struct pci_device_id *ent)
-{
- struct mgsl_struct *info;
-
- if (pci_enable_device(dev)) {
- printk("error enabling pci device %p\n", dev);
- return -EIO;
- }
-
- if (!(info = mgsl_allocate_device())) {
- printk("can't allocate device instance data.\n");
- return -EIO;
- }
-
- /* Copy user configuration info to device instance data */
-
- info->io_base = pci_resource_start(dev, 2);
- info->irq_level = dev->irq;
- info->phys_memory_base = pci_resource_start(dev, 3);
-
- /* Because veremap only works on page boundaries we must map
- * a larger area than is actually implemented for the LCR
- * memory range. We map a full page starting at the page boundary.
- */
- info->phys_lcr_base = pci_resource_start(dev, 0);
- info->lcr_offset = info->phys_lcr_base & (PAGE_SIZE-1);
- info->phys_lcr_base &= ~(PAGE_SIZE-1);
-
- info->bus_type = MGSL_BUS_TYPE_PCI;
- info->io_addr_size = 8;
- info->irq_flags = IRQF_SHARED;
-
- if (dev->device == 0x0210) {
- /* Version 1 PCI9030 based universal PCI adapter */
- info->misc_ctrl_value = 0x007c4080;
- info->hw_version = 1;
- } else {
- /* Version 0 PCI9050 based 5V PCI adapter
- * A PCI9050 bug prevents reading LCR registers if
- * LCR base address bit 7 is set. Maintain shadow
- * value so we can write to LCR misc control reg.
- */
- info->misc_ctrl_value = 0x087e4546;
- info->hw_version = 0;
- }
-
- mgsl_add_device(info);
-
- return 0;
-}
-
-static void __devexit synclink_remove_one (struct pci_dev *dev)
-{
-}
-
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
deleted file mode 100644
index d01fffeac95..00000000000
--- a/drivers/char/synclink_gt.c
+++ /dev/null
@@ -1,5162 +0,0 @@
-/*
- * Device driver for Microgate SyncLink GT serial adapters.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * This code is released under the GNU General Public License (GPL)
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * DEBUG OUTPUT DEFINITIONS
- *
- * uncomment lines below to enable specific types of debug output
- *
- * DBGINFO information - most verbose output
- * DBGERR serious errors
- * DBGBH bottom half service routine debugging
- * DBGISR interrupt service routine debugging
- * DBGDATA output receive and transmit data
- * DBGTBUF output transmit DMA buffers and registers
- * DBGRBUF output receive DMA buffers and registers
- */
-
-#define DBGINFO(fmt) if (debug_level >= DEBUG_LEVEL_INFO) printk fmt
-#define DBGERR(fmt) if (debug_level >= DEBUG_LEVEL_ERROR) printk fmt
-#define DBGBH(fmt) if (debug_level >= DEBUG_LEVEL_BH) printk fmt
-#define DBGISR(fmt) if (debug_level >= DEBUG_LEVEL_ISR) printk fmt
-#define DBGDATA(info, buf, size, label) if (debug_level >= DEBUG_LEVEL_DATA) trace_block((info), (buf), (size), (label))
-/*#define DBGTBUF(info) dump_tbufs(info)*/
-/*#define DBGRBUF(info) dump_rbufs(info)*/
-
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/ioctl.h>
-#include <linux/termios.h>
-#include <linux/bitops.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/synclink.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <asm/types.h>
-#include <asm/uaccess.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINK_GT_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-/*
- * module identification
- */
-static char *driver_name = "SyncLink GT";
-static char *tty_driver_name = "synclink_gt";
-static char *tty_dev_prefix = "ttySLG";
-MODULE_LICENSE("GPL");
-#define MGSL_MAGIC 0x5401
-#define MAX_DEVICES 32
-
-static struct pci_device_id pci_table[] = {
- {PCI_VENDOR_ID_MICROGATE, SYNCLINK_GT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
- {PCI_VENDOR_ID_MICROGATE, SYNCLINK_GT2_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
- {PCI_VENDOR_ID_MICROGATE, SYNCLINK_GT4_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
- {PCI_VENDOR_ID_MICROGATE, SYNCLINK_AC_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
- {0,}, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, pci_table);
-
-static int init_one(struct pci_dev *dev,const struct pci_device_id *ent);
-static void remove_one(struct pci_dev *dev);
-static struct pci_driver pci_driver = {
- .name = "synclink_gt",
- .id_table = pci_table,
- .probe = init_one,
- .remove = __devexit_p(remove_one),
-};
-
-static bool pci_registered;
-
-/*
- * module configuration and status
- */
-static struct slgt_info *slgt_device_list;
-static int slgt_device_count;
-
-static int ttymajor;
-static int debug_level;
-static int maxframe[MAX_DEVICES];
-
-module_param(ttymajor, int, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-
-MODULE_PARM_DESC(ttymajor, "TTY major device number override: 0=auto assigned");
-MODULE_PARM_DESC(debug_level, "Debug syslog output: 0=disabled, 1 to 5=increasing detail");
-MODULE_PARM_DESC(maxframe, "Maximum frame size used by device (4096 to 65535)");
-
-/*
- * tty support and callbacks
- */
-static struct tty_driver *serial_driver;
-
-static int open(struct tty_struct *tty, struct file * filp);
-static void close(struct tty_struct *tty, struct file * filp);
-static void hangup(struct tty_struct *tty);
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-
-static int write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int put_char(struct tty_struct *tty, unsigned char ch);
-static void send_xchar(struct tty_struct *tty, char ch);
-static void wait_until_sent(struct tty_struct *tty, int timeout);
-static int write_room(struct tty_struct *tty);
-static void flush_chars(struct tty_struct *tty);
-static void flush_buffer(struct tty_struct *tty);
-static void tx_hold(struct tty_struct *tty);
-static void tx_release(struct tty_struct *tty);
-
-static int ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
-static int chars_in_buffer(struct tty_struct *tty);
-static void throttle(struct tty_struct * tty);
-static void unthrottle(struct tty_struct * tty);
-static int set_break(struct tty_struct *tty, int break_state);
-
-/*
- * generic HDLC support and callbacks
- */
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(struct slgt_info *info);
-static void hdlcdev_rx(struct slgt_info *info, char *buf, int size);
-static int hdlcdev_init(struct slgt_info *info);
-static void hdlcdev_exit(struct slgt_info *info);
-#endif
-
-
-/*
- * device specific structures, macros and functions
- */
-
-#define SLGT_MAX_PORTS 4
-#define SLGT_REG_SIZE 256
-
-/*
- * conditional wait facility
- */
-struct cond_wait {
- struct cond_wait *next;
- wait_queue_head_t q;
- wait_queue_t wait;
- unsigned int data;
-};
-static void init_cond_wait(struct cond_wait *w, unsigned int data);
-static void add_cond_wait(struct cond_wait **head, struct cond_wait *w);
-static void remove_cond_wait(struct cond_wait **head, struct cond_wait *w);
-static void flush_cond_wait(struct cond_wait **head);
-
-/*
- * DMA buffer descriptor and access macros
- */
-struct slgt_desc
-{
- __le16 count;
- __le16 status;
- __le32 pbuf; /* physical address of data buffer */
- __le32 next; /* physical address of next descriptor */
-
- /* driver book keeping */
- char *buf; /* virtual address of data buffer */
- unsigned int pdesc; /* physical address of this descriptor */
- dma_addr_t buf_dma_addr;
- unsigned short buf_count;
-};
-
-#define set_desc_buffer(a,b) (a).pbuf = cpu_to_le32((unsigned int)(b))
-#define set_desc_next(a,b) (a).next = cpu_to_le32((unsigned int)(b))
-#define set_desc_count(a,b)(a).count = cpu_to_le16((unsigned short)(b))
-#define set_desc_eof(a,b) (a).status = cpu_to_le16((b) ? (le16_to_cpu((a).status) | BIT0) : (le16_to_cpu((a).status) & ~BIT0))
-#define set_desc_status(a, b) (a).status = cpu_to_le16((unsigned short)(b))
-#define desc_count(a) (le16_to_cpu((a).count))
-#define desc_status(a) (le16_to_cpu((a).status))
-#define desc_complete(a) (le16_to_cpu((a).status) & BIT15)
-#define desc_eof(a) (le16_to_cpu((a).status) & BIT2)
-#define desc_crc_error(a) (le16_to_cpu((a).status) & BIT1)
-#define desc_abort(a) (le16_to_cpu((a).status) & BIT0)
-#define desc_residue(a) ((le16_to_cpu((a).status) & 0x38) >> 3)
-
-struct _input_signal_events {
- int ri_up;
- int ri_down;
- int dsr_up;
- int dsr_down;
- int dcd_up;
- int dcd_down;
- int cts_up;
- int cts_down;
-};
-
-/*
- * device instance data structure
- */
-struct slgt_info {
- void *if_ptr; /* General purpose pointer (used by SPPP) */
- struct tty_port port;
-
- struct slgt_info *next_device; /* device list link */
-
- int magic;
-
- char device_name[25];
- struct pci_dev *pdev;
-
- int port_count; /* count of ports on adapter */
- int adapter_num; /* adapter instance number */
- int port_num; /* port instance number */
-
- /* array of pointers to port contexts on this adapter */
- struct slgt_info *port_array[SLGT_MAX_PORTS];
-
- int line; /* tty line instance number */
-
- struct mgsl_icount icount;
-
- int timeout;
- int x_char; /* xon/xoff character */
- unsigned int read_status_mask;
- unsigned int ignore_status_mask;
-
- wait_queue_head_t status_event_wait_q;
- wait_queue_head_t event_wait_q;
- struct timer_list tx_timer;
- struct timer_list rx_timer;
-
- unsigned int gpio_present;
- struct cond_wait *gpio_wait_q;
-
- spinlock_t lock; /* spinlock for synchronizing with ISR */
-
- struct work_struct task;
- u32 pending_bh;
- bool bh_requested;
- bool bh_running;
-
- int isr_overflow;
- bool irq_requested; /* true if IRQ requested */
- bool irq_occurred; /* for diagnostics use */
-
- /* device configuration */
-
- unsigned int bus_type;
- unsigned int irq_level;
- unsigned long irq_flags;
-
- unsigned char __iomem * reg_addr; /* memory mapped registers address */
- u32 phys_reg_addr;
- bool reg_addr_requested;
-
- MGSL_PARAMS params; /* communications parameters */
- u32 idle_mode;
- u32 max_frame_size; /* as set by device config */
-
- unsigned int rbuf_fill_level;
- unsigned int rx_pio;
- unsigned int if_mode;
- unsigned int base_clock;
- unsigned int xsync;
- unsigned int xctrl;
-
- /* device status */
-
- bool rx_enabled;
- bool rx_restart;
-
- bool tx_enabled;
- bool tx_active;
-
- unsigned char signals; /* serial signal states */
- int init_error; /* initialization error */
-
- unsigned char *tx_buf;
- int tx_count;
-
- char flag_buf[MAX_ASYNC_BUFFER_SIZE];
- char char_buf[MAX_ASYNC_BUFFER_SIZE];
- bool drop_rts_on_tx_done;
- struct _input_signal_events input_signal_events;
-
- int dcd_chkcount; /* check counts to prevent */
- int cts_chkcount; /* too many IRQs if a signal */
- int dsr_chkcount; /* is floating */
- int ri_chkcount;
-
- char *bufs; /* virtual address of DMA buffer lists */
- dma_addr_t bufs_dma_addr; /* physical address of buffer descriptors */
-
- unsigned int rbuf_count;
- struct slgt_desc *rbufs;
- unsigned int rbuf_current;
- unsigned int rbuf_index;
- unsigned int rbuf_fill_index;
- unsigned short rbuf_fill_count;
-
- unsigned int tbuf_count;
- struct slgt_desc *tbufs;
- unsigned int tbuf_current;
- unsigned int tbuf_start;
-
- unsigned char *tmp_rbuf;
- unsigned int tmp_rbuf_count;
-
- /* SPPP/Cisco HDLC device parts */
-
- int netcount;
- spinlock_t netlock;
-#if SYNCLINK_GENERIC_HDLC
- struct net_device *netdev;
-#endif
-
-};
-
-static MGSL_PARAMS default_params = {
- .mode = MGSL_MODE_HDLC,
- .loopback = 0,
- .flags = HDLC_FLAG_UNDERRUN_ABORT15,
- .encoding = HDLC_ENCODING_NRZI_SPACE,
- .clock_speed = 0,
- .addr_filter = 0xff,
- .crc_type = HDLC_CRC_16_CCITT,
- .preamble_length = HDLC_PREAMBLE_LENGTH_8BITS,
- .preamble = HDLC_PREAMBLE_PATTERN_NONE,
- .data_rate = 9600,
- .data_bits = 8,
- .stop_bits = 1,
- .parity = ASYNC_PARITY_NONE
-};
-
-
-#define BH_RECEIVE 1
-#define BH_TRANSMIT 2
-#define BH_STATUS 4
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-#define DMABUFSIZE 256
-#define DESC_LIST_SIZE 4096
-
-#define MASK_PARITY BIT1
-#define MASK_FRAMING BIT0
-#define MASK_BREAK BIT14
-#define MASK_OVERRUN BIT4
-
-#define GSR 0x00 /* global status */
-#define JCR 0x04 /* JTAG control */
-#define IODR 0x08 /* GPIO direction */
-#define IOER 0x0c /* GPIO interrupt enable */
-#define IOVR 0x10 /* GPIO value */
-#define IOSR 0x14 /* GPIO interrupt status */
-#define TDR 0x80 /* tx data */
-#define RDR 0x80 /* rx data */
-#define TCR 0x82 /* tx control */
-#define TIR 0x84 /* tx idle */
-#define TPR 0x85 /* tx preamble */
-#define RCR 0x86 /* rx control */
-#define VCR 0x88 /* V.24 control */
-#define CCR 0x89 /* clock control */
-#define BDR 0x8a /* baud divisor */
-#define SCR 0x8c /* serial control */
-#define SSR 0x8e /* serial status */
-#define RDCSR 0x90 /* rx DMA control/status */
-#define TDCSR 0x94 /* tx DMA control/status */
-#define RDDAR 0x98 /* rx DMA descriptor address */
-#define TDDAR 0x9c /* tx DMA descriptor address */
-#define XSR 0x40 /* extended sync pattern */
-#define XCR 0x44 /* extended control */
-
-#define RXIDLE BIT14
-#define RXBREAK BIT14
-#define IRQ_TXDATA BIT13
-#define IRQ_TXIDLE BIT12
-#define IRQ_TXUNDER BIT11 /* HDLC */
-#define IRQ_RXDATA BIT10
-#define IRQ_RXIDLE BIT9 /* HDLC */
-#define IRQ_RXBREAK BIT9 /* async */
-#define IRQ_RXOVER BIT8
-#define IRQ_DSR BIT7
-#define IRQ_CTS BIT6
-#define IRQ_DCD BIT5
-#define IRQ_RI BIT4
-#define IRQ_ALL 0x3ff0
-#define IRQ_MASTER BIT0
-
-#define slgt_irq_on(info, mask) \
- wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) | (mask)))
-#define slgt_irq_off(info, mask) \
- wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) & ~(mask)))
-
-static __u8 rd_reg8(struct slgt_info *info, unsigned int addr);
-static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value);
-static __u16 rd_reg16(struct slgt_info *info, unsigned int addr);
-static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value);
-static __u32 rd_reg32(struct slgt_info *info, unsigned int addr);
-static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value);
-
-static void msc_set_vcr(struct slgt_info *info);
-
-static int startup(struct slgt_info *info);
-static int block_til_ready(struct tty_struct *tty, struct file * filp,struct slgt_info *info);
-static void shutdown(struct slgt_info *info);
-static void program_hw(struct slgt_info *info);
-static void change_params(struct slgt_info *info);
-
-static int register_test(struct slgt_info *info);
-static int irq_test(struct slgt_info *info);
-static int loopback_test(struct slgt_info *info);
-static int adapter_test(struct slgt_info *info);
-
-static void reset_adapter(struct slgt_info *info);
-static void reset_port(struct slgt_info *info);
-static void async_mode(struct slgt_info *info);
-static void sync_mode(struct slgt_info *info);
-
-static void rx_stop(struct slgt_info *info);
-static void rx_start(struct slgt_info *info);
-static void reset_rbufs(struct slgt_info *info);
-static void free_rbufs(struct slgt_info *info, unsigned int first, unsigned int last);
-static void rdma_reset(struct slgt_info *info);
-static bool rx_get_frame(struct slgt_info *info);
-static bool rx_get_buf(struct slgt_info *info);
-
-static void tx_start(struct slgt_info *info);
-static void tx_stop(struct slgt_info *info);
-static void tx_set_idle(struct slgt_info *info);
-static unsigned int free_tbuf_count(struct slgt_info *info);
-static unsigned int tbuf_bytes(struct slgt_info *info);
-static void reset_tbufs(struct slgt_info *info);
-static void tdma_reset(struct slgt_info *info);
-static bool tx_load(struct slgt_info *info, const char *buf, unsigned int count);
-
-static void get_signals(struct slgt_info *info);
-static void set_signals(struct slgt_info *info);
-static void enable_loopback(struct slgt_info *info);
-static void set_rate(struct slgt_info *info, u32 data_rate);
-
-static int bh_action(struct slgt_info *info);
-static void bh_handler(struct work_struct *work);
-static void bh_transmit(struct slgt_info *info);
-static void isr_serial(struct slgt_info *info);
-static void isr_rdma(struct slgt_info *info);
-static void isr_txeom(struct slgt_info *info, unsigned short status);
-static void isr_tdma(struct slgt_info *info);
-
-static int alloc_dma_bufs(struct slgt_info *info);
-static void free_dma_bufs(struct slgt_info *info);
-static int alloc_desc(struct slgt_info *info);
-static void free_desc(struct slgt_info *info);
-static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
-static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
-
-static int alloc_tmp_rbuf(struct slgt_info *info);
-static void free_tmp_rbuf(struct slgt_info *info);
-
-static void tx_timeout(unsigned long context);
-static void rx_timeout(unsigned long context);
-
-/*
- * ioctl handlers
- */
-static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount);
-static int get_params(struct slgt_info *info, MGSL_PARAMS __user *params);
-static int set_params(struct slgt_info *info, MGSL_PARAMS __user *params);
-static int get_txidle(struct slgt_info *info, int __user *idle_mode);
-static int set_txidle(struct slgt_info *info, int idle_mode);
-static int tx_enable(struct slgt_info *info, int enable);
-static int tx_abort(struct slgt_info *info);
-static int rx_enable(struct slgt_info *info, int enable);
-static int modem_input_wait(struct slgt_info *info,int arg);
-static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr);
-static int tiocmget(struct tty_struct *tty, struct file *file);
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
-static int set_break(struct tty_struct *tty, int break_state);
-static int get_interface(struct slgt_info *info, int __user *if_mode);
-static int set_interface(struct slgt_info *info, int if_mode);
-static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
-static int get_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
-static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
-static int get_xsync(struct slgt_info *info, int __user *if_mode);
-static int set_xsync(struct slgt_info *info, int if_mode);
-static int get_xctrl(struct slgt_info *info, int __user *if_mode);
-static int set_xctrl(struct slgt_info *info, int if_mode);
-
-/*
- * driver functions
- */
-static void add_device(struct slgt_info *info);
-static void device_init(int adapter_num, struct pci_dev *pdev);
-static int claim_resources(struct slgt_info *info);
-static void release_resources(struct slgt_info *info);
-
-/*
- * DEBUG OUTPUT CODE
- */
-#ifndef DBGINFO
-#define DBGINFO(fmt)
-#endif
-#ifndef DBGERR
-#define DBGERR(fmt)
-#endif
-#ifndef DBGBH
-#define DBGBH(fmt)
-#endif
-#ifndef DBGISR
-#define DBGISR(fmt)
-#endif
-
-#ifdef DBGDATA
-static void trace_block(struct slgt_info *info, const char *data, int count, const char *label)
-{
- int i;
- int linecount;
- printk("%s %s data:\n",info->device_name, label);
- while(count) {
- linecount = (count > 16) ? 16 : count;
- for(i=0; i < linecount; i++)
- printk("%02X ",(unsigned char)data[i]);
- for(;i<17;i++)
- printk(" ");
- for(i=0;i<linecount;i++) {
- if (data[i]>=040 && data[i]<=0176)
- printk("%c",data[i]);
- else
- printk(".");
- }
- printk("\n");
- data += linecount;
- count -= linecount;
- }
-}
-#else
-#define DBGDATA(info, buf, size, label)
-#endif
-
-#ifdef DBGTBUF
-static void dump_tbufs(struct slgt_info *info)
-{
- int i;
- printk("tbuf_current=%d\n", info->tbuf_current);
- for (i=0 ; i < info->tbuf_count ; i++) {
- printk("%d: count=%04X status=%04X\n",
- i, le16_to_cpu(info->tbufs[i].count), le16_to_cpu(info->tbufs[i].status));
- }
-}
-#else
-#define DBGTBUF(info)
-#endif
-
-#ifdef DBGRBUF
-static void dump_rbufs(struct slgt_info *info)
-{
- int i;
- printk("rbuf_current=%d\n", info->rbuf_current);
- for (i=0 ; i < info->rbuf_count ; i++) {
- printk("%d: count=%04X status=%04X\n",
- i, le16_to_cpu(info->rbufs[i].count), le16_to_cpu(info->rbufs[i].status));
- }
-}
-#else
-#define DBGRBUF(info)
-#endif
-
-static inline int sanity_check(struct slgt_info *info, char *devname, const char *name)
-{
-#ifdef SANITY_CHECK
- if (!info) {
- printk("null struct slgt_info for (%s) in %s\n", devname, name);
- return 1;
- }
- if (info->magic != MGSL_MAGIC) {
- printk("bad magic number struct slgt_info (%s) in %s\n", devname, name);
- return 1;
- }
-#else
- if (!info)
- return 1;
-#endif
- return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf - pass receive data to line discipline
- */
-static void ldisc_receive_buf(struct tty_struct *tty,
- const __u8 *data, char *flags, int count)
-{
- struct tty_ldisc *ld;
- if (!tty)
- return;
- ld = tty_ldisc_ref(tty);
- if (ld) {
- if (ld->ops->receive_buf)
- ld->ops->receive_buf(tty, data, flags, count);
- tty_ldisc_deref(ld);
- }
-}
-
-/* tty callbacks */
-
-static int open(struct tty_struct *tty, struct file *filp)
-{
- struct slgt_info *info;
- int retval, line;
- unsigned long flags;
-
- line = tty->index;
- if ((line < 0) || (line >= slgt_device_count)) {
- DBGERR(("%s: open with invalid line #%d.\n", driver_name, line));
- return -ENODEV;
- }
-
- info = slgt_device_list;
- while(info && info->line != line)
- info = info->next_device;
- if (sanity_check(info, tty->name, "open"))
- return -ENODEV;
- if (info->init_error) {
- DBGERR(("%s init error=%d\n", info->device_name, info->init_error));
- return -ENODEV;
- }
-
- tty->driver_data = info;
- info->port.tty = tty;
-
- DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
-
- /* If port is closing, signal caller to try again */
- if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
- if (info->port.flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->port.close_wait);
- retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS);
- goto cleanup;
- }
-
- mutex_lock(&info->port.mutex);
- info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
- spin_lock_irqsave(&info->netlock, flags);
- if (info->netcount) {
- retval = -EBUSY;
- spin_unlock_irqrestore(&info->netlock, flags);
- mutex_unlock(&info->port.mutex);
- goto cleanup;
- }
- info->port.count++;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- if (info->port.count == 1) {
- /* 1st open on this device, init hardware */
- retval = startup(info);
- if (retval < 0) {
- mutex_unlock(&info->port.mutex);
- goto cleanup;
- }
- }
- mutex_unlock(&info->port.mutex);
- retval = block_til_ready(tty, filp, info);
- if (retval) {
- DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval));
- goto cleanup;
- }
-
- retval = 0;
-
-cleanup:
- if (retval) {
- if (tty->count == 1)
- info->port.tty = NULL; /* tty layer will release tty struct */
- if(info->port.count)
- info->port.count--;
- }
-
- DBGINFO(("%s open rc=%d\n", info->device_name, retval));
- return retval;
-}
-
-static void close(struct tty_struct *tty, struct file *filp)
-{
- struct slgt_info *info = tty->driver_data;
-
- if (sanity_check(info, tty->name, "close"))
- return;
- DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
-
- if (tty_port_close_start(&info->port, tty, filp) == 0)
- goto cleanup;
-
- mutex_lock(&info->port.mutex);
- if (info->port.flags & ASYNC_INITIALIZED)
- wait_until_sent(tty, info->timeout);
- flush_buffer(tty);
- tty_ldisc_flush(tty);
-
- shutdown(info);
- mutex_unlock(&info->port.mutex);
-
- tty_port_close_end(&info->port, tty);
- info->port.tty = NULL;
-cleanup:
- DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
-}
-
-static void hangup(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "hangup"))
- return;
- DBGINFO(("%s hangup\n", info->device_name));
-
- flush_buffer(tty);
-
- mutex_lock(&info->port.mutex);
- shutdown(info);
-
- spin_lock_irqsave(&info->port.lock, flags);
- info->port.count = 0;
- info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
- info->port.tty = NULL;
- spin_unlock_irqrestore(&info->port.lock, flags);
- mutex_unlock(&info->port.mutex);
-
- wake_up_interruptible(&info->port.open_wait);
-}
-
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- DBGINFO(("%s set_termios\n", tty->driver->name));
-
- change_params(info);
-
- /* Handle transition to B0 status */
- if (old_termios->c_cflag & CBAUD &&
- !(tty->termios->c_cflag & CBAUD)) {
- info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-
- /* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) &&
- tty->termios->c_cflag & CBAUD) {
- info->signals |= SerialSignal_DTR;
- if (!(tty->termios->c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &tty->flags)) {
- info->signals |= SerialSignal_RTS;
- }
- spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-
- /* Handle turning off CRTSCTS */
- if (old_termios->c_cflag & CRTSCTS &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- tx_release(tty);
- }
-}
-
-static void update_tx_timer(struct slgt_info *info)
-{
- /*
- * use worst case speed of 1200bps to calculate transmit timeout
- * based on data in buffers (tbuf_bytes) and FIFO (128 bytes)
- */
- if (info->params.mode == MGSL_MODE_HDLC) {
- int timeout = (tbuf_bytes(info) * 7) + 1000;
- mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout));
- }
-}
-
-static int write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- int ret = 0;
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "write"))
- return -EIO;
-
- DBGINFO(("%s write count=%d\n", info->device_name, count));
-
- if (!info->tx_buf || (count > info->max_frame_size))
- return -EIO;
-
- if (!count || tty->stopped || tty->hw_stopped)
- return 0;
-
- spin_lock_irqsave(&info->lock, flags);
-
- if (info->tx_count) {
- /* send accumulated data from send_char() */
- if (!tx_load(info, info->tx_buf, info->tx_count))
- goto cleanup;
- info->tx_count = 0;
- }
-
- if (tx_load(info, buf, count))
- ret = count;
-
-cleanup:
- spin_unlock_irqrestore(&info->lock, flags);
- DBGINFO(("%s write rc=%d\n", info->device_name, ret));
- return ret;
-}
-
-static int put_char(struct tty_struct *tty, unsigned char ch)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
- int ret = 0;
-
- if (sanity_check(info, tty->name, "put_char"))
- return 0;
- DBGINFO(("%s put_char(%d)\n", info->device_name, ch));
- if (!info->tx_buf)
- return 0;
- spin_lock_irqsave(&info->lock,flags);
- if (info->tx_count < info->max_frame_size) {
- info->tx_buf[info->tx_count++] = ch;
- ret = 1;
- }
- spin_unlock_irqrestore(&info->lock,flags);
- return ret;
-}
-
-static void send_xchar(struct tty_struct *tty, char ch)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "send_xchar"))
- return;
- DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch));
- info->x_char = ch;
- if (ch) {
- spin_lock_irqsave(&info->lock,flags);
- if (!info->tx_enabled)
- tx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-}
-
-static void wait_until_sent(struct tty_struct *tty, int timeout)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long orig_jiffies, char_time;
-
- if (!info )
- return;
- if (sanity_check(info, tty->name, "wait_until_sent"))
- return;
- DBGINFO(("%s wait_until_sent entry\n", info->device_name));
- if (!(info->port.flags & ASYNC_INITIALIZED))
- goto exit;
-
- orig_jiffies = jiffies;
-
- /* Set check interval to 1/5 of estimated time to
- * send a character, and make it at least 1. The check
- * interval should also be less than the timeout.
- * Note: use tight timings here to satisfy the NIST-PCTS.
- */
-
- if (info->params.data_rate) {
- char_time = info->timeout/(32 * 5);
- if (!char_time)
- char_time++;
- } else
- char_time = 1;
-
- if (timeout)
- char_time = min_t(unsigned long, char_time, timeout);
-
- while (info->tx_active) {
- msleep_interruptible(jiffies_to_msecs(char_time));
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
-exit:
- DBGINFO(("%s wait_until_sent exit\n", info->device_name));
-}
-
-static int write_room(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- int ret;
-
- if (sanity_check(info, tty->name, "write_room"))
- return 0;
- ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
- DBGINFO(("%s write_room=%d\n", info->device_name, ret));
- return ret;
-}
-
-static void flush_chars(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "flush_chars"))
- return;
- DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count));
-
- if (info->tx_count <= 0 || tty->stopped ||
- tty->hw_stopped || !info->tx_buf)
- return;
-
- DBGINFO(("%s flush_chars start transmit\n", info->device_name));
-
- spin_lock_irqsave(&info->lock,flags);
- if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count))
- info->tx_count = 0;
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-static void flush_buffer(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "flush_buffer"))
- return;
- DBGINFO(("%s flush_buffer\n", info->device_name));
-
- spin_lock_irqsave(&info->lock, flags);
- info->tx_count = 0;
- spin_unlock_irqrestore(&info->lock, flags);
-
- tty_wakeup(tty);
-}
-
-/*
- * throttle (stop) transmitter
- */
-static void tx_hold(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "tx_hold"))
- return;
- DBGINFO(("%s tx_hold\n", info->device_name));
- spin_lock_irqsave(&info->lock,flags);
- if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC)
- tx_stop(info);
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/*
- * release (start) transmitter
- */
-static void tx_release(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "tx_release"))
- return;
- DBGINFO(("%s tx_release\n", info->device_name));
- spin_lock_irqsave(&info->lock, flags);
- if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count))
- info->tx_count = 0;
- spin_unlock_irqrestore(&info->lock, flags);
-}
-
-/*
- * Service an IOCTL request
- *
- * Arguments
- *
- * tty pointer to tty instance data
- * file pointer to associated file object for device
- * cmd IOCTL command code
- * arg command argument/context
- *
- * Return 0 if success, otherwise error code
- */
-static int ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct slgt_info *info = tty->driver_data;
- void __user *argp = (void __user *)arg;
- int ret;
-
- if (sanity_check(info, tty->name, "ioctl"))
- return -ENODEV;
- DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd));
-
- if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
- (cmd != TIOCMIWAIT)) {
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
- }
-
- switch (cmd) {
- case MGSL_IOCWAITEVENT:
- return wait_mgsl_event(info, argp);
- case TIOCMIWAIT:
- return modem_input_wait(info,(int)arg);
- case MGSL_IOCSGPIO:
- return set_gpio(info, argp);
- case MGSL_IOCGGPIO:
- return get_gpio(info, argp);
- case MGSL_IOCWAITGPIO:
- return wait_gpio(info, argp);
- case MGSL_IOCGXSYNC:
- return get_xsync(info, argp);
- case MGSL_IOCSXSYNC:
- return set_xsync(info, (int)arg);
- case MGSL_IOCGXCTRL:
- return get_xctrl(info, argp);
- case MGSL_IOCSXCTRL:
- return set_xctrl(info, (int)arg);
- }
- mutex_lock(&info->port.mutex);
- switch (cmd) {
- case MGSL_IOCGPARAMS:
- ret = get_params(info, argp);
- break;
- case MGSL_IOCSPARAMS:
- ret = set_params(info, argp);
- break;
- case MGSL_IOCGTXIDLE:
- ret = get_txidle(info, argp);
- break;
- case MGSL_IOCSTXIDLE:
- ret = set_txidle(info, (int)arg);
- break;
- case MGSL_IOCTXENABLE:
- ret = tx_enable(info, (int)arg);
- break;
- case MGSL_IOCRXENABLE:
- ret = rx_enable(info, (int)arg);
- break;
- case MGSL_IOCTXABORT:
- ret = tx_abort(info);
- break;
- case MGSL_IOCGSTATS:
- ret = get_stats(info, argp);
- break;
- case MGSL_IOCGIF:
- ret = get_interface(info, argp);
- break;
- case MGSL_IOCSIF:
- ret = set_interface(info,(int)arg);
- break;
- default:
- ret = -ENOIOCTLCMD;
- }
- mutex_unlock(&info->port.mutex);
- return ret;
-}
-
-static int get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-
-{
- struct slgt_info *info = tty->driver_data;
- struct mgsl_icount cnow; /* kernel counter temps */
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- cnow = info->icount;
- spin_unlock_irqrestore(&info->lock,flags);
-
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->frame = cnow.frame;
- icount->overrun = cnow.overrun;
- icount->parity = cnow.parity;
- icount->brk = cnow.brk;
- icount->buf_overrun = cnow.buf_overrun;
-
- return 0;
-}
-
-/*
- * support for 32 bit ioctl calls on 64 bit systems
- */
-#ifdef CONFIG_COMPAT
-static long get_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *user_params)
-{
- struct MGSL_PARAMS32 tmp_params;
-
- DBGINFO(("%s get_params32\n", info->device_name));
- memset(&tmp_params, 0, sizeof(tmp_params));
- tmp_params.mode = (compat_ulong_t)info->params.mode;
- tmp_params.loopback = info->params.loopback;
- tmp_params.flags = info->params.flags;
- tmp_params.encoding = info->params.encoding;
- tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed;
- tmp_params.addr_filter = info->params.addr_filter;
- tmp_params.crc_type = info->params.crc_type;
- tmp_params.preamble_length = info->params.preamble_length;
- tmp_params.preamble = info->params.preamble;
- tmp_params.data_rate = (compat_ulong_t)info->params.data_rate;
- tmp_params.data_bits = info->params.data_bits;
- tmp_params.stop_bits = info->params.stop_bits;
- tmp_params.parity = info->params.parity;
- if (copy_to_user(user_params, &tmp_params, sizeof(struct MGSL_PARAMS32)))
- return -EFAULT;
- return 0;
-}
-
-static long set_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *new_params)
-{
- struct MGSL_PARAMS32 tmp_params;
-
- DBGINFO(("%s set_params32\n", info->device_name));
- if (copy_from_user(&tmp_params, new_params, sizeof(struct MGSL_PARAMS32)))
- return -EFAULT;
-
- spin_lock(&info->lock);
- if (tmp_params.mode == MGSL_MODE_BASE_CLOCK) {
- info->base_clock = tmp_params.clock_speed;
- } else {
- info->params.mode = tmp_params.mode;
- info->params.loopback = tmp_params.loopback;
- info->params.flags = tmp_params.flags;
- info->params.encoding = tmp_params.encoding;
- info->params.clock_speed = tmp_params.clock_speed;
- info->params.addr_filter = tmp_params.addr_filter;
- info->params.crc_type = tmp_params.crc_type;
- info->params.preamble_length = tmp_params.preamble_length;
- info->params.preamble = tmp_params.preamble;
- info->params.data_rate = tmp_params.data_rate;
- info->params.data_bits = tmp_params.data_bits;
- info->params.stop_bits = tmp_params.stop_bits;
- info->params.parity = tmp_params.parity;
- }
- spin_unlock(&info->lock);
-
- program_hw(info);
-
- return 0;
-}
-
-static long slgt_compat_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct slgt_info *info = tty->driver_data;
- int rc = -ENOIOCTLCMD;
-
- if (sanity_check(info, tty->name, "compat_ioctl"))
- return -ENODEV;
- DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd));
-
- switch (cmd) {
-
- case MGSL_IOCSPARAMS32:
- rc = set_params32(info, compat_ptr(arg));
- break;
-
- case MGSL_IOCGPARAMS32:
- rc = get_params32(info, compat_ptr(arg));
- break;
-
- case MGSL_IOCGPARAMS:
- case MGSL_IOCSPARAMS:
- case MGSL_IOCGTXIDLE:
- case MGSL_IOCGSTATS:
- case MGSL_IOCWAITEVENT:
- case MGSL_IOCGIF:
- case MGSL_IOCSGPIO:
- case MGSL_IOCGGPIO:
- case MGSL_IOCWAITGPIO:
- case MGSL_IOCGXSYNC:
- case MGSL_IOCGXCTRL:
- case MGSL_IOCSTXIDLE:
- case MGSL_IOCTXENABLE:
- case MGSL_IOCRXENABLE:
- case MGSL_IOCTXABORT:
- case TIOCMIWAIT:
- case MGSL_IOCSIF:
- case MGSL_IOCSXSYNC:
- case MGSL_IOCSXCTRL:
- rc = ioctl(tty, file, cmd, arg);
- break;
- }
-
- DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc));
- return rc;
-}
-#else
-#define slgt_compat_ioctl NULL
-#endif /* ifdef CONFIG_COMPAT */
-
-/*
- * proc fs support
- */
-static inline void line_info(struct seq_file *m, struct slgt_info *info)
-{
- char stat_buf[30];
- unsigned long flags;
-
- seq_printf(m, "%s: IO=%08X IRQ=%d MaxFrameSize=%u\n",
- info->device_name, info->phys_reg_addr,
- info->irq_level, info->max_frame_size);
-
- /* output current serial signal states */
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- stat_buf[0] = 0;
- stat_buf[1] = 0;
- if (info->signals & SerialSignal_RTS)
- strcat(stat_buf, "|RTS");
- if (info->signals & SerialSignal_CTS)
- strcat(stat_buf, "|CTS");
- if (info->signals & SerialSignal_DTR)
- strcat(stat_buf, "|DTR");
- if (info->signals & SerialSignal_DSR)
- strcat(stat_buf, "|DSR");
- if (info->signals & SerialSignal_DCD)
- strcat(stat_buf, "|CD");
- if (info->signals & SerialSignal_RI)
- strcat(stat_buf, "|RI");
-
- if (info->params.mode != MGSL_MODE_ASYNC) {
- seq_printf(m, "\tHDLC txok:%d rxok:%d",
- info->icount.txok, info->icount.rxok);
- if (info->icount.txunder)
- seq_printf(m, " txunder:%d", info->icount.txunder);
- if (info->icount.txabort)
- seq_printf(m, " txabort:%d", info->icount.txabort);
- if (info->icount.rxshort)
- seq_printf(m, " rxshort:%d", info->icount.rxshort);
- if (info->icount.rxlong)
- seq_printf(m, " rxlong:%d", info->icount.rxlong);
- if (info->icount.rxover)
- seq_printf(m, " rxover:%d", info->icount.rxover);
- if (info->icount.rxcrc)
- seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
- } else {
- seq_printf(m, "\tASYNC tx:%d rx:%d",
- info->icount.tx, info->icount.rx);
- if (info->icount.frame)
- seq_printf(m, " fe:%d", info->icount.frame);
- if (info->icount.parity)
- seq_printf(m, " pe:%d", info->icount.parity);
- if (info->icount.brk)
- seq_printf(m, " brk:%d", info->icount.brk);
- if (info->icount.overrun)
- seq_printf(m, " oe:%d", info->icount.overrun);
- }
-
- /* Append serial signal status to end */
- seq_printf(m, " %s\n", stat_buf+1);
-
- seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
- info->tx_active,info->bh_requested,info->bh_running,
- info->pending_bh);
-}
-
-/* Called to print information about devices
- */
-static int synclink_gt_proc_show(struct seq_file *m, void *v)
-{
- struct slgt_info *info;
-
- seq_puts(m, "synclink_gt driver\n");
-
- info = slgt_device_list;
- while( info ) {
- line_info(m, info);
- info = info->next_device;
- }
- return 0;
-}
-
-static int synclink_gt_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, synclink_gt_proc_show, NULL);
-}
-
-static const struct file_operations synclink_gt_proc_fops = {
- .owner = THIS_MODULE,
- .open = synclink_gt_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * return count of bytes in transmit buffer
- */
-static int chars_in_buffer(struct tty_struct *tty)
-{
- struct slgt_info *info = tty->driver_data;
- int count;
- if (sanity_check(info, tty->name, "chars_in_buffer"))
- return 0;
- count = tbuf_bytes(info);
- DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count));
- return count;
-}
-
-/*
- * signal remote device to throttle send data (our receive data)
- */
-static void throttle(struct tty_struct * tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "throttle"))
- return;
- DBGINFO(("%s throttle\n", info->device_name));
- if (I_IXOFF(tty))
- send_xchar(tty, STOP_CHAR(tty));
- if (tty->termios->c_cflag & CRTSCTS) {
- spin_lock_irqsave(&info->lock,flags);
- info->signals &= ~SerialSignal_RTS;
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-}
-
-/*
- * signal remote device to stop throttling send data (our receive data)
- */
-static void unthrottle(struct tty_struct * tty)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "unthrottle"))
- return;
- DBGINFO(("%s unthrottle\n", info->device_name));
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else
- send_xchar(tty, START_CHAR(tty));
- }
- if (tty->termios->c_cflag & CRTSCTS) {
- spin_lock_irqsave(&info->lock,flags);
- info->signals |= SerialSignal_RTS;
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-}
-
-/*
- * set or clear transmit break condition
- * break_state -1=set break condition, 0=clear
- */
-static int set_break(struct tty_struct *tty, int break_state)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned short value;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "set_break"))
- return -EINVAL;
- DBGINFO(("%s set_break(%d)\n", info->device_name, break_state));
-
- spin_lock_irqsave(&info->lock,flags);
- value = rd_reg16(info, TCR);
- if (break_state == -1)
- value |= BIT6;
- else
- value &= ~BIT6;
- wr_reg16(info, TCR, value);
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev pointer to network device structure
- * encoding serial encoding setting
- * parity FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
- unsigned short parity)
-{
- struct slgt_info *info = dev_to_port(dev);
- unsigned char new_encoding;
- unsigned short new_crctype;
-
- /* return error if TTY interface open */
- if (info->port.count)
- return -EBUSY;
-
- DBGINFO(("%s hdlcdev_attach\n", info->device_name));
-
- switch (encoding)
- {
- case ENCODING_NRZ: new_encoding = HDLC_ENCODING_NRZ; break;
- case ENCODING_NRZI: new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
- case ENCODING_FM_MARK: new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
- case ENCODING_FM_SPACE: new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
- case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
- default: return -EINVAL;
- }
-
- switch (parity)
- {
- case PARITY_NONE: new_crctype = HDLC_CRC_NONE; break;
- case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
- case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
- default: return -EINVAL;
- }
-
- info->params.encoding = new_encoding;
- info->params.crc_type = new_crctype;
-
- /* if network interface up, reprogram hardware */
- if (info->netcount)
- program_hw(info);
-
- return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb socket buffer containing HDLC frame
- * dev pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct slgt_info *info = dev_to_port(dev);
- unsigned long flags;
-
- DBGINFO(("%s hdlc_xmit\n", dev->name));
-
- if (!skb->len)
- return NETDEV_TX_OK;
-
- /* stop sending until this frame completes */
- netif_stop_queue(dev);
-
- /* update network statistics */
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- /* save start time for transmit timeout detection */
- dev->trans_start = jiffies;
-
- spin_lock_irqsave(&info->lock, flags);
- tx_load(info, skb->data, skb->len);
- spin_unlock_irqrestore(&info->lock, flags);
-
- /* done with socket buffer, so free it */
- dev_kfree_skb(skb);
-
- return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
- struct slgt_info *info = dev_to_port(dev);
- int rc;
- unsigned long flags;
-
- if (!try_module_get(THIS_MODULE))
- return -EBUSY;
-
- DBGINFO(("%s hdlcdev_open\n", dev->name));
-
- /* generic HDLC layer open processing */
- if ((rc = hdlc_open(dev)))
- return rc;
-
- /* arbitrate between network and tty opens */
- spin_lock_irqsave(&info->netlock, flags);
- if (info->port.count != 0 || info->netcount != 0) {
- DBGINFO(("%s hdlc_open busy\n", dev->name));
- spin_unlock_irqrestore(&info->netlock, flags);
- return -EBUSY;
- }
- info->netcount=1;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- /* claim resources and init adapter */
- if ((rc = startup(info)) != 0) {
- spin_lock_irqsave(&info->netlock, flags);
- info->netcount=0;
- spin_unlock_irqrestore(&info->netlock, flags);
- return rc;
- }
-
- /* assert DTR and RTS, apply hardware settings */
- info->signals |= SerialSignal_RTS + SerialSignal_DTR;
- program_hw(info);
-
- /* enable network layer transmit */
- dev->trans_start = jiffies;
- netif_start_queue(dev);
-
- /* inform generic HDLC layer of current DCD status */
- spin_lock_irqsave(&info->lock, flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock, flags);
- if (info->signals & SerialSignal_DCD)
- netif_carrier_on(dev);
- else
- netif_carrier_off(dev);
- return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
- struct slgt_info *info = dev_to_port(dev);
- unsigned long flags;
-
- DBGINFO(("%s hdlcdev_close\n", dev->name));
-
- netif_stop_queue(dev);
-
- /* shutdown adapter and release resources */
- shutdown(info);
-
- hdlc_close(dev);
-
- spin_lock_irqsave(&info->netlock, flags);
- info->netcount=0;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- module_put(THIS_MODULE);
- return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev pointer to network device structure
- * ifr pointer to network interface request structure
- * cmd IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- const size_t size = sizeof(sync_serial_settings);
- sync_serial_settings new_line;
- sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
- struct slgt_info *info = dev_to_port(dev);
- unsigned int flags;
-
- DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
-
- /* return error if TTY interface open */
- if (info->port.count)
- return -EBUSY;
-
- if (cmd != SIOCWANDEV)
- return hdlc_ioctl(dev, ifr, cmd);
-
- memset(&new_line, 0, sizeof(new_line));
-
- switch(ifr->ifr_settings.type) {
- case IF_GET_IFACE: /* return current sync_serial_settings */
-
- ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
- if (ifr->ifr_settings.size < size) {
- ifr->ifr_settings.size = size; /* data size wanted */
- return -ENOBUFS;
- }
-
- flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN);
-
- switch (flags){
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
- case (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG): new_line.clock_type = CLOCK_INT; break;
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG): new_line.clock_type = CLOCK_TXINT; break;
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
- default: new_line.clock_type = CLOCK_DEFAULT;
- }
-
- new_line.clock_rate = info->params.clock_speed;
- new_line.loopback = info->params.loopback ? 1:0;
-
- if (copy_to_user(line, &new_line, size))
- return -EFAULT;
- return 0;
-
- case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
- if(!capable(CAP_NET_ADMIN))
- return -EPERM;
- if (copy_from_user(&new_line, line, size))
- return -EFAULT;
-
- switch (new_line.clock_type)
- {
- case CLOCK_EXT: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
- case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
- case CLOCK_INT: flags = HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG; break;
- case CLOCK_TXINT: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG; break;
- case CLOCK_DEFAULT: flags = info->params.flags &
- (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN); break;
- default: return -EINVAL;
- }
-
- if (new_line.loopback != 0 && new_line.loopback != 1)
- return -EINVAL;
-
- info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN);
- info->params.flags |= flags;
-
- info->params.loopback = new_line.loopback;
-
- if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
- info->params.clock_speed = new_line.clock_rate;
- else
- info->params.clock_speed = 0;
-
- /* if network interface up, reprogram hardware */
- if (info->netcount)
- program_hw(info);
- return 0;
-
- default:
- return hdlc_ioctl(dev, ifr, cmd);
- }
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
- struct slgt_info *info = dev_to_port(dev);
- unsigned long flags;
-
- DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name));
-
- dev->stats.tx_errors++;
- dev->stats.tx_aborted_errors++;
-
- spin_lock_irqsave(&info->lock,flags);
- tx_stop(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info pointer to device instance information
- */
-static void hdlcdev_tx_done(struct slgt_info *info)
-{
- if (netif_queue_stopped(info->netdev))
- netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info pointer to device instance information
- * buf pointer to buffer contianing frame data
- * size count of data bytes in buf
- */
-static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
-{
- struct sk_buff *skb = dev_alloc_skb(size);
- struct net_device *dev = info->netdev;
-
- DBGINFO(("%s hdlcdev_rx\n", dev->name));
-
- if (skb == NULL) {
- DBGERR(("%s: can't alloc skb, drop packet\n", dev->name));
- dev->stats.rx_dropped++;
- return;
- }
-
- memcpy(skb_put(skb, size), buf, size);
-
- skb->protocol = hdlc_type_trans(skb, dev);
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += size;
-
- netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
- .ndo_open = hdlcdev_open,
- .ndo_stop = hdlcdev_close,
- .ndo_change_mtu = hdlc_change_mtu,
- .ndo_start_xmit = hdlc_start_xmit,
- .ndo_do_ioctl = hdlcdev_ioctl,
- .ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(struct slgt_info *info)
-{
- int rc;
- struct net_device *dev;
- hdlc_device *hdlc;
-
- /* allocate and initialize network and HDLC layer objects */
-
- if (!(dev = alloc_hdlcdev(info))) {
- printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name);
- return -ENOMEM;
- }
-
- /* for network layer reporting purposes only */
- dev->mem_start = info->phys_reg_addr;
- dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1;
- dev->irq = info->irq_level;
-
- /* network layer callbacks and settings */
- dev->netdev_ops = &hdlcdev_ops;
- dev->watchdog_timeo = 10 * HZ;
- dev->tx_queue_len = 50;
-
- /* generic HDLC layer callbacks and settings */
- hdlc = dev_to_hdlc(dev);
- hdlc->attach = hdlcdev_attach;
- hdlc->xmit = hdlcdev_xmit;
-
- /* register objects with HDLC layer */
- if ((rc = register_hdlc_device(dev))) {
- printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
- free_netdev(dev);
- return rc;
- }
-
- info->netdev = dev;
- return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info pointer to device instance information
- */
-static void hdlcdev_exit(struct slgt_info *info)
-{
- unregister_hdlc_device(info->netdev);
- free_netdev(info->netdev);
- info->netdev = NULL;
-}
-
-#endif /* ifdef CONFIG_HDLC */
-
-/*
- * get async data from rx DMA buffers
- */
-static void rx_async(struct slgt_info *info)
-{
- struct tty_struct *tty = info->port.tty;
- struct mgsl_icount *icount = &info->icount;
- unsigned int start, end;
- unsigned char *p;
- unsigned char status;
- struct slgt_desc *bufs = info->rbufs;
- int i, count;
- int chars = 0;
- int stat;
- unsigned char ch;
-
- start = end = info->rbuf_current;
-
- while(desc_complete(bufs[end])) {
- count = desc_count(bufs[end]) - info->rbuf_index;
- p = bufs[end].buf + info->rbuf_index;
-
- DBGISR(("%s rx_async count=%d\n", info->device_name, count));
- DBGDATA(info, p, count, "rx");
-
- for(i=0 ; i < count; i+=2, p+=2) {
- ch = *p;
- icount->rx++;
-
- stat = 0;
-
- if ((status = *(p+1) & (BIT1 + BIT0))) {
- if (status & BIT1)
- icount->parity++;
- else if (status & BIT0)
- icount->frame++;
- /* discard char if tty control flags say so */
- if (status & info->ignore_status_mask)
- continue;
- if (status & BIT1)
- stat = TTY_PARITY;
- else if (status & BIT0)
- stat = TTY_FRAME;
- }
- if (tty) {
- tty_insert_flip_char(tty, ch, stat);
- chars++;
- }
- }
-
- if (i < count) {
- /* receive buffer not completed */
- info->rbuf_index += i;
- mod_timer(&info->rx_timer, jiffies + 1);
- break;
- }
-
- info->rbuf_index = 0;
- free_rbufs(info, end, end);
-
- if (++end == info->rbuf_count)
- end = 0;
-
- /* if entire list searched then no frame available */
- if (end == start)
- break;
- }
-
- if (tty && chars)
- tty_flip_buffer_push(tty);
-}
-
-/*
- * return next bottom half action to perform
- */
-static int bh_action(struct slgt_info *info)
-{
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&info->lock,flags);
-
- if (info->pending_bh & BH_RECEIVE) {
- info->pending_bh &= ~BH_RECEIVE;
- rc = BH_RECEIVE;
- } else if (info->pending_bh & BH_TRANSMIT) {
- info->pending_bh &= ~BH_TRANSMIT;
- rc = BH_TRANSMIT;
- } else if (info->pending_bh & BH_STATUS) {
- info->pending_bh &= ~BH_STATUS;
- rc = BH_STATUS;
- } else {
- /* Mark BH routine as complete */
- info->bh_running = false;
- info->bh_requested = false;
- rc = 0;
- }
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- return rc;
-}
-
-/*
- * perform bottom half processing
- */
-static void bh_handler(struct work_struct *work)
-{
- struct slgt_info *info = container_of(work, struct slgt_info, task);
- int action;
-
- if (!info)
- return;
- info->bh_running = true;
-
- while((action = bh_action(info))) {
- switch (action) {
- case BH_RECEIVE:
- DBGBH(("%s bh receive\n", info->device_name));
- switch(info->params.mode) {
- case MGSL_MODE_ASYNC:
- rx_async(info);
- break;
- case MGSL_MODE_HDLC:
- while(rx_get_frame(info));
- break;
- case MGSL_MODE_RAW:
- case MGSL_MODE_MONOSYNC:
- case MGSL_MODE_BISYNC:
- case MGSL_MODE_XSYNC:
- while(rx_get_buf(info));
- break;
- }
- /* restart receiver if rx DMA buffers exhausted */
- if (info->rx_restart)
- rx_start(info);
- break;
- case BH_TRANSMIT:
- bh_transmit(info);
- break;
- case BH_STATUS:
- DBGBH(("%s bh status\n", info->device_name));
- info->ri_chkcount = 0;
- info->dsr_chkcount = 0;
- info->dcd_chkcount = 0;
- info->cts_chkcount = 0;
- break;
- default:
- DBGBH(("%s unknown action\n", info->device_name));
- break;
- }
- }
- DBGBH(("%s bh_handler exit\n", info->device_name));
-}
-
-static void bh_transmit(struct slgt_info *info)
-{
- struct tty_struct *tty = info->port.tty;
-
- DBGBH(("%s bh_transmit\n", info->device_name));
- if (tty)
- tty_wakeup(tty);
-}
-
-static void dsr_change(struct slgt_info *info, unsigned short status)
-{
- if (status & BIT3) {
- info->signals |= SerialSignal_DSR;
- info->input_signal_events.dsr_up++;
- } else {
- info->signals &= ~SerialSignal_DSR;
- info->input_signal_events.dsr_down++;
- }
- DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals));
- if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
- slgt_irq_off(info, IRQ_DSR);
- return;
- }
- info->icount.dsr++;
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
- info->pending_bh |= BH_STATUS;
-}
-
-static void cts_change(struct slgt_info *info, unsigned short status)
-{
- if (status & BIT2) {
- info->signals |= SerialSignal_CTS;
- info->input_signal_events.cts_up++;
- } else {
- info->signals &= ~SerialSignal_CTS;
- info->input_signal_events.cts_down++;
- }
- DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals));
- if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
- slgt_irq_off(info, IRQ_CTS);
- return;
- }
- info->icount.cts++;
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
- info->pending_bh |= BH_STATUS;
-
- if (info->port.flags & ASYNC_CTS_FLOW) {
- if (info->port.tty) {
- if (info->port.tty->hw_stopped) {
- if (info->signals & SerialSignal_CTS) {
- info->port.tty->hw_stopped = 0;
- info->pending_bh |= BH_TRANSMIT;
- return;
- }
- } else {
- if (!(info->signals & SerialSignal_CTS))
- info->port.tty->hw_stopped = 1;
- }
- }
- }
-}
-
-static void dcd_change(struct slgt_info *info, unsigned short status)
-{
- if (status & BIT1) {
- info->signals |= SerialSignal_DCD;
- info->input_signal_events.dcd_up++;
- } else {
- info->signals &= ~SerialSignal_DCD;
- info->input_signal_events.dcd_down++;
- }
- DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals));
- if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
- slgt_irq_off(info, IRQ_DCD);
- return;
- }
- info->icount.dcd++;
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount) {
- if (info->signals & SerialSignal_DCD)
- netif_carrier_on(info->netdev);
- else
- netif_carrier_off(info->netdev);
- }
-#endif
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
- info->pending_bh |= BH_STATUS;
-
- if (info->port.flags & ASYNC_CHECK_CD) {
- if (info->signals & SerialSignal_DCD)
- wake_up_interruptible(&info->port.open_wait);
- else {
- if (info->port.tty)
- tty_hangup(info->port.tty);
- }
- }
-}
-
-static void ri_change(struct slgt_info *info, unsigned short status)
-{
- if (status & BIT0) {
- info->signals |= SerialSignal_RI;
- info->input_signal_events.ri_up++;
- } else {
- info->signals &= ~SerialSignal_RI;
- info->input_signal_events.ri_down++;
- }
- DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals));
- if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) {
- slgt_irq_off(info, IRQ_RI);
- return;
- }
- info->icount.rng++;
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
- info->pending_bh |= BH_STATUS;
-}
-
-static void isr_rxdata(struct slgt_info *info)
-{
- unsigned int count = info->rbuf_fill_count;
- unsigned int i = info->rbuf_fill_index;
- unsigned short reg;
-
- while (rd_reg16(info, SSR) & IRQ_RXDATA) {
- reg = rd_reg16(info, RDR);
- DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg));
- if (desc_complete(info->rbufs[i])) {
- /* all buffers full */
- rx_stop(info);
- info->rx_restart = 1;
- continue;
- }
- info->rbufs[i].buf[count++] = (unsigned char)reg;
- /* async mode saves status byte to buffer for each data byte */
- if (info->params.mode == MGSL_MODE_ASYNC)
- info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8);
- if (count == info->rbuf_fill_level || (reg & BIT10)) {
- /* buffer full or end of frame */
- set_desc_count(info->rbufs[i], count);
- set_desc_status(info->rbufs[i], BIT15 | (reg >> 8));
- info->rbuf_fill_count = count = 0;
- if (++i == info->rbuf_count)
- i = 0;
- info->pending_bh |= BH_RECEIVE;
- }
- }
-
- info->rbuf_fill_index = i;
- info->rbuf_fill_count = count;
-}
-
-static void isr_serial(struct slgt_info *info)
-{
- unsigned short status = rd_reg16(info, SSR);
-
- DBGISR(("%s isr_serial status=%04X\n", info->device_name, status));
-
- wr_reg16(info, SSR, status); /* clear pending */
-
- info->irq_occurred = true;
-
- if (info->params.mode == MGSL_MODE_ASYNC) {
- if (status & IRQ_TXIDLE) {
- if (info->tx_active)
- isr_txeom(info, status);
- }
- if (info->rx_pio && (status & IRQ_RXDATA))
- isr_rxdata(info);
- if ((status & IRQ_RXBREAK) && (status & RXBREAK)) {
- info->icount.brk++;
- /* process break detection if tty control allows */
- if (info->port.tty) {
- if (!(status & info->ignore_status_mask)) {
- if (info->read_status_mask & MASK_BREAK) {
- tty_insert_flip_char(info->port.tty, 0, TTY_BREAK);
- if (info->port.flags & ASYNC_SAK)
- do_SAK(info->port.tty);
- }
- }
- }
- }
- } else {
- if (status & (IRQ_TXIDLE + IRQ_TXUNDER))
- isr_txeom(info, status);
- if (info->rx_pio && (status & IRQ_RXDATA))
- isr_rxdata(info);
- if (status & IRQ_RXIDLE) {
- if (status & RXIDLE)
- info->icount.rxidle++;
- else
- info->icount.exithunt++;
- wake_up_interruptible(&info->event_wait_q);
- }
-
- if (status & IRQ_RXOVER)
- rx_start(info);
- }
-
- if (status & IRQ_DSR)
- dsr_change(info, status);
- if (status & IRQ_CTS)
- cts_change(info, status);
- if (status & IRQ_DCD)
- dcd_change(info, status);
- if (status & IRQ_RI)
- ri_change(info, status);
-}
-
-static void isr_rdma(struct slgt_info *info)
-{
- unsigned int status = rd_reg32(info, RDCSR);
-
- DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status));
-
- /* RDCSR (rx DMA control/status)
- *
- * 31..07 reserved
- * 06 save status byte to DMA buffer
- * 05 error
- * 04 eol (end of list)
- * 03 eob (end of buffer)
- * 02 IRQ enable
- * 01 reset
- * 00 enable
- */
- wr_reg32(info, RDCSR, status); /* clear pending */
-
- if (status & (BIT5 + BIT4)) {
- DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name));
- info->rx_restart = true;
- }
- info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_tdma(struct slgt_info *info)
-{
- unsigned int status = rd_reg32(info, TDCSR);
-
- DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status));
-
- /* TDCSR (tx DMA control/status)
- *
- * 31..06 reserved
- * 05 error
- * 04 eol (end of list)
- * 03 eob (end of buffer)
- * 02 IRQ enable
- * 01 reset
- * 00 enable
- */
- wr_reg32(info, TDCSR, status); /* clear pending */
-
- if (status & (BIT5 + BIT4 + BIT3)) {
- // another transmit buffer has completed
- // run bottom half to get more send data from user
- info->pending_bh |= BH_TRANSMIT;
- }
-}
-
-/*
- * return true if there are unsent tx DMA buffers, otherwise false
- *
- * if there are unsent buffers then info->tbuf_start
- * is set to index of first unsent buffer
- */
-static bool unsent_tbufs(struct slgt_info *info)
-{
- unsigned int i = info->tbuf_current;
- bool rc = false;
-
- /*
- * search backwards from last loaded buffer (precedes tbuf_current)
- * for first unsent buffer (desc_count > 0)
- */
-
- do {
- if (i)
- i--;
- else
- i = info->tbuf_count - 1;
- if (!desc_count(info->tbufs[i]))
- break;
- info->tbuf_start = i;
- rc = true;
- } while (i != info->tbuf_current);
-
- return rc;
-}
-
-static void isr_txeom(struct slgt_info *info, unsigned short status)
-{
- DBGISR(("%s txeom status=%04x\n", info->device_name, status));
-
- slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER);
- tdma_reset(info);
- if (status & IRQ_TXUNDER) {
- unsigned short val = rd_reg16(info, TCR);
- wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */
- wr_reg16(info, TCR, val); /* clear reset bit */
- }
-
- if (info->tx_active) {
- if (info->params.mode != MGSL_MODE_ASYNC) {
- if (status & IRQ_TXUNDER)
- info->icount.txunder++;
- else if (status & IRQ_TXIDLE)
- info->icount.txok++;
- }
-
- if (unsent_tbufs(info)) {
- tx_start(info);
- update_tx_timer(info);
- return;
- }
- info->tx_active = false;
-
- del_timer(&info->tx_timer);
-
- if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) {
- info->signals &= ~SerialSignal_RTS;
- info->drop_rts_on_tx_done = false;
- set_signals(info);
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_tx_done(info);
- else
-#endif
- {
- if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
- tx_stop(info);
- return;
- }
- info->pending_bh |= BH_TRANSMIT;
- }
- }
-}
-
-static void isr_gpio(struct slgt_info *info, unsigned int changed, unsigned int state)
-{
- struct cond_wait *w, *prev;
-
- /* wake processes waiting for specific transitions */
- for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) {
- if (w->data & changed) {
- w->data = state;
- wake_up_interruptible(&w->q);
- if (prev != NULL)
- prev->next = w->next;
- else
- info->gpio_wait_q = w->next;
- } else
- prev = w;
- }
-}
-
-/* interrupt service routine
- *
- * irq interrupt number
- * dev_id device ID supplied during interrupt registration
- */
-static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
-{
- struct slgt_info *info = dev_id;
- unsigned int gsr;
- unsigned int i;
-
- DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level));
-
- while((gsr = rd_reg32(info, GSR) & 0xffffff00)) {
- DBGISR(("%s gsr=%08x\n", info->device_name, gsr));
- info->irq_occurred = true;
- for(i=0; i < info->port_count ; i++) {
- if (info->port_array[i] == NULL)
- continue;
- spin_lock(&info->port_array[i]->lock);
- if (gsr & (BIT8 << i))
- isr_serial(info->port_array[i]);
- if (gsr & (BIT16 << (i*2)))
- isr_rdma(info->port_array[i]);
- if (gsr & (BIT17 << (i*2)))
- isr_tdma(info->port_array[i]);
- spin_unlock(&info->port_array[i]->lock);
- }
- }
-
- if (info->gpio_present) {
- unsigned int state;
- unsigned int changed;
- spin_lock(&info->lock);
- while ((changed = rd_reg32(info, IOSR)) != 0) {
- DBGISR(("%s iosr=%08x\n", info->device_name, changed));
- /* read latched state of GPIO signals */
- state = rd_reg32(info, IOVR);
- /* clear pending GPIO interrupt bits */
- wr_reg32(info, IOSR, changed);
- for (i=0 ; i < info->port_count ; i++) {
- if (info->port_array[i] != NULL)
- isr_gpio(info->port_array[i], changed, state);
- }
- }
- spin_unlock(&info->lock);
- }
-
- for(i=0; i < info->port_count ; i++) {
- struct slgt_info *port = info->port_array[i];
- if (port == NULL)
- continue;
- spin_lock(&port->lock);
- if ((port->port.count || port->netcount) &&
- port->pending_bh && !port->bh_running &&
- !port->bh_requested) {
- DBGISR(("%s bh queued\n", port->device_name));
- schedule_work(&port->task);
- port->bh_requested = true;
- }
- spin_unlock(&port->lock);
- }
-
- DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level));
- return IRQ_HANDLED;
-}
-
-static int startup(struct slgt_info *info)
-{
- DBGINFO(("%s startup\n", info->device_name));
-
- if (info->port.flags & ASYNC_INITIALIZED)
- return 0;
-
- if (!info->tx_buf) {
- info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
- if (!info->tx_buf) {
- DBGERR(("%s can't allocate tx buffer\n", info->device_name));
- return -ENOMEM;
- }
- }
-
- info->pending_bh = 0;
-
- memset(&info->icount, 0, sizeof(info->icount));
-
- /* program hardware for current parameters */
- change_params(info);
-
- if (info->port.tty)
- clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
- info->port.flags |= ASYNC_INITIALIZED;
-
- return 0;
-}
-
-/*
- * called by close() and hangup() to shutdown hardware
- */
-static void shutdown(struct slgt_info *info)
-{
- unsigned long flags;
-
- if (!(info->port.flags & ASYNC_INITIALIZED))
- return;
-
- DBGINFO(("%s shutdown\n", info->device_name));
-
- /* clear status wait queue because status changes */
- /* can't happen after shutting down the hardware */
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
-
- del_timer_sync(&info->tx_timer);
- del_timer_sync(&info->rx_timer);
-
- kfree(info->tx_buf);
- info->tx_buf = NULL;
-
- spin_lock_irqsave(&info->lock,flags);
-
- tx_stop(info);
- rx_stop(info);
-
- slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
-
- if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
- set_signals(info);
- }
-
- flush_cond_wait(&info->gpio_wait_q);
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- if (info->port.tty)
- set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
- info->port.flags &= ~ASYNC_INITIALIZED;
-}
-
-static void program_hw(struct slgt_info *info)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
-
- rx_stop(info);
- tx_stop(info);
-
- if (info->params.mode != MGSL_MODE_ASYNC ||
- info->netcount)
- sync_mode(info);
- else
- async_mode(info);
-
- set_signals(info);
-
- info->dcd_chkcount = 0;
- info->cts_chkcount = 0;
- info->ri_chkcount = 0;
- info->dsr_chkcount = 0;
-
- slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI);
- get_signals(info);
-
- if (info->netcount ||
- (info->port.tty && info->port.tty->termios->c_cflag & CREAD))
- rx_start(info);
-
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/*
- * reconfigure adapter based on new parameters
- */
-static void change_params(struct slgt_info *info)
-{
- unsigned cflag;
- int bits_per_char;
-
- if (!info->port.tty || !info->port.tty->termios)
- return;
- DBGINFO(("%s change_params\n", info->device_name));
-
- cflag = info->port.tty->termios->c_cflag;
-
- /* if B0 rate (hangup) specified then negate DTR and RTS */
- /* otherwise assert DTR and RTS */
- if (cflag & CBAUD)
- info->signals |= SerialSignal_RTS + SerialSignal_DTR;
- else
- info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-
- /* byte size and parity */
-
- switch (cflag & CSIZE) {
- case CS5: info->params.data_bits = 5; break;
- case CS6: info->params.data_bits = 6; break;
- case CS7: info->params.data_bits = 7; break;
- case CS8: info->params.data_bits = 8; break;
- default: info->params.data_bits = 7; break;
- }
-
- info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1;
-
- if (cflag & PARENB)
- info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN;
- else
- info->params.parity = ASYNC_PARITY_NONE;
-
- /* calculate number of jiffies to transmit a full
- * FIFO (32 bytes) at specified data rate
- */
- bits_per_char = info->params.data_bits +
- info->params.stop_bits + 1;
-
- info->params.data_rate = tty_get_baud_rate(info->port.tty);
-
- if (info->params.data_rate) {
- info->timeout = (32*HZ*bits_per_char) /
- info->params.data_rate;
- }
- info->timeout += HZ/50; /* Add .02 seconds of slop */
-
- if (cflag & CRTSCTS)
- info->port.flags |= ASYNC_CTS_FLOW;
- else
- info->port.flags &= ~ASYNC_CTS_FLOW;
-
- if (cflag & CLOCAL)
- info->port.flags &= ~ASYNC_CHECK_CD;
- else
- info->port.flags |= ASYNC_CHECK_CD;
-
- /* process tty input control flags */
-
- info->read_status_mask = IRQ_RXOVER;
- if (I_INPCK(info->port.tty))
- info->read_status_mask |= MASK_PARITY | MASK_FRAMING;
- if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- info->read_status_mask |= MASK_BREAK;
- if (I_IGNPAR(info->port.tty))
- info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING;
- if (I_IGNBRK(info->port.tty)) {
- info->ignore_status_mask |= MASK_BREAK;
- /* If ignoring parity and break indicators, ignore
- * overruns too. (For real raw support).
- */
- if (I_IGNPAR(info->port.tty))
- info->ignore_status_mask |= MASK_OVERRUN;
- }
-
- program_hw(info);
-}
-
-static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount)
-{
- DBGINFO(("%s get_stats\n", info->device_name));
- if (!user_icount) {
- memset(&info->icount, 0, sizeof(info->icount));
- } else {
- if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount)))
- return -EFAULT;
- }
- return 0;
-}
-
-static int get_params(struct slgt_info *info, MGSL_PARAMS __user *user_params)
-{
- DBGINFO(("%s get_params\n", info->device_name));
- if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS)))
- return -EFAULT;
- return 0;
-}
-
-static int set_params(struct slgt_info *info, MGSL_PARAMS __user *new_params)
-{
- unsigned long flags;
- MGSL_PARAMS tmp_params;
-
- DBGINFO(("%s set_params\n", info->device_name));
- if (copy_from_user(&tmp_params, new_params, sizeof(MGSL_PARAMS)))
- return -EFAULT;
-
- spin_lock_irqsave(&info->lock, flags);
- if (tmp_params.mode == MGSL_MODE_BASE_CLOCK)
- info->base_clock = tmp_params.clock_speed;
- else
- memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS));
- spin_unlock_irqrestore(&info->lock, flags);
-
- program_hw(info);
-
- return 0;
-}
-
-static int get_txidle(struct slgt_info *info, int __user *idle_mode)
-{
- DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode));
- if (put_user(info->idle_mode, idle_mode))
- return -EFAULT;
- return 0;
-}
-
-static int set_txidle(struct slgt_info *info, int idle_mode)
-{
- unsigned long flags;
- DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode));
- spin_lock_irqsave(&info->lock,flags);
- info->idle_mode = idle_mode;
- if (info->params.mode != MGSL_MODE_ASYNC)
- tx_set_idle(info);
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-static int tx_enable(struct slgt_info *info, int enable)
-{
- unsigned long flags;
- DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable));
- spin_lock_irqsave(&info->lock,flags);
- if (enable) {
- if (!info->tx_enabled)
- tx_start(info);
- } else {
- if (info->tx_enabled)
- tx_stop(info);
- }
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-/*
- * abort transmit HDLC frame
- */
-static int tx_abort(struct slgt_info *info)
-{
- unsigned long flags;
- DBGINFO(("%s tx_abort\n", info->device_name));
- spin_lock_irqsave(&info->lock,flags);
- tdma_reset(info);
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-static int rx_enable(struct slgt_info *info, int enable)
-{
- unsigned long flags;
- unsigned int rbuf_fill_level;
- DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable));
- spin_lock_irqsave(&info->lock,flags);
- /*
- * enable[31..16] = receive DMA buffer fill level
- * 0 = noop (leave fill level unchanged)
- * fill level must be multiple of 4 and <= buffer size
- */
- rbuf_fill_level = ((unsigned int)enable) >> 16;
- if (rbuf_fill_level) {
- if ((rbuf_fill_level > DMABUFSIZE) || (rbuf_fill_level % 4)) {
- spin_unlock_irqrestore(&info->lock, flags);
- return -EINVAL;
- }
- info->rbuf_fill_level = rbuf_fill_level;
- if (rbuf_fill_level < 128)
- info->rx_pio = 1; /* PIO mode */
- else
- info->rx_pio = 0; /* DMA mode */
- rx_stop(info); /* restart receiver to use new fill level */
- }
-
- /*
- * enable[1..0] = receiver enable command
- * 0 = disable
- * 1 = enable
- * 2 = enable or force hunt mode if already enabled
- */
- enable &= 3;
- if (enable) {
- if (!info->rx_enabled)
- rx_start(info);
- else if (enable == 2) {
- /* force hunt mode (write 1 to RCR[3]) */
- wr_reg16(info, RCR, rd_reg16(info, RCR) | BIT3);
- }
- } else {
- if (info->rx_enabled)
- rx_stop(info);
- }
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-/*
- * wait for specified event to occur
- */
-static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr)
-{
- unsigned long flags;
- int s;
- int rc=0;
- struct mgsl_icount cprev, cnow;
- int events;
- int mask;
- struct _input_signal_events oldsigs, newsigs;
- DECLARE_WAITQUEUE(wait, current);
-
- if (get_user(mask, mask_ptr))
- return -EFAULT;
-
- DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask));
-
- spin_lock_irqsave(&info->lock,flags);
-
- /* return immediately if state matches requested events */
- get_signals(info);
- s = info->signals;
-
- events = mask &
- ( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
- ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
- ((s & SerialSignal_RI) ? MgslEvent_RiActive :MgslEvent_RiInactive) );
- if (events) {
- spin_unlock_irqrestore(&info->lock,flags);
- goto exit;
- }
-
- /* save current irq counts */
- cprev = info->icount;
- oldsigs = info->input_signal_events;
-
- /* enable hunt and idle irqs if needed */
- if (mask & (MgslEvent_ExitHuntMode+MgslEvent_IdleReceived)) {
- unsigned short val = rd_reg16(info, SCR);
- if (!(val & IRQ_RXIDLE))
- wr_reg16(info, SCR, (unsigned short)(val | IRQ_RXIDLE));
- }
-
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&info->event_wait_q, &wait);
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- for(;;) {
- schedule();
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
-
- /* get current irq counts */
- spin_lock_irqsave(&info->lock,flags);
- cnow = info->icount;
- newsigs = info->input_signal_events;
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->lock,flags);
-
- /* if no change, wait aborted for some reason */
- if (newsigs.dsr_up == oldsigs.dsr_up &&
- newsigs.dsr_down == oldsigs.dsr_down &&
- newsigs.dcd_up == oldsigs.dcd_up &&
- newsigs.dcd_down == oldsigs.dcd_down &&
- newsigs.cts_up == oldsigs.cts_up &&
- newsigs.cts_down == oldsigs.cts_down &&
- newsigs.ri_up == oldsigs.ri_up &&
- newsigs.ri_down == oldsigs.ri_down &&
- cnow.exithunt == cprev.exithunt &&
- cnow.rxidle == cprev.rxidle) {
- rc = -EIO;
- break;
- }
-
- events = mask &
- ( (newsigs.dsr_up != oldsigs.dsr_up ? MgslEvent_DsrActive:0) +
- (newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
- (newsigs.dcd_up != oldsigs.dcd_up ? MgslEvent_DcdActive:0) +
- (newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
- (newsigs.cts_up != oldsigs.cts_up ? MgslEvent_CtsActive:0) +
- (newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
- (newsigs.ri_up != oldsigs.ri_up ? MgslEvent_RiActive:0) +
- (newsigs.ri_down != oldsigs.ri_down ? MgslEvent_RiInactive:0) +
- (cnow.exithunt != cprev.exithunt ? MgslEvent_ExitHuntMode:0) +
- (cnow.rxidle != cprev.rxidle ? MgslEvent_IdleReceived:0) );
- if (events)
- break;
-
- cprev = cnow;
- oldsigs = newsigs;
- }
-
- remove_wait_queue(&info->event_wait_q, &wait);
- set_current_state(TASK_RUNNING);
-
-
- if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
- spin_lock_irqsave(&info->lock,flags);
- if (!waitqueue_active(&info->event_wait_q)) {
- /* disable enable exit hunt mode/idle rcvd IRQs */
- wr_reg16(info, SCR,
- (unsigned short)(rd_reg16(info, SCR) & ~IRQ_RXIDLE));
- }
- spin_unlock_irqrestore(&info->lock,flags);
- }
-exit:
- if (rc == 0)
- rc = put_user(events, mask_ptr);
- return rc;
-}
-
-static int get_interface(struct slgt_info *info, int __user *if_mode)
-{
- DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode));
- if (put_user(info->if_mode, if_mode))
- return -EFAULT;
- return 0;
-}
-
-static int set_interface(struct slgt_info *info, int if_mode)
-{
- unsigned long flags;
- unsigned short val;
-
- DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode));
- spin_lock_irqsave(&info->lock,flags);
- info->if_mode = if_mode;
-
- msc_set_vcr(info);
-
- /* TCR (tx control) 07 1=RTS driver control */
- val = rd_reg16(info, TCR);
- if (info->if_mode & MGSL_INTERFACE_RTS_EN)
- val |= BIT7;
- else
- val &= ~BIT7;
- wr_reg16(info, TCR, val);
-
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-static int get_xsync(struct slgt_info *info, int __user *xsync)
-{
- DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync));
- if (put_user(info->xsync, xsync))
- return -EFAULT;
- return 0;
-}
-
-/*
- * set extended sync pattern (1 to 4 bytes) for extended sync mode
- *
- * sync pattern is contained in least significant bytes of value
- * most significant byte of sync pattern is oldest (1st sent/detected)
- */
-static int set_xsync(struct slgt_info *info, int xsync)
-{
- unsigned long flags;
-
- DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync));
- spin_lock_irqsave(&info->lock, flags);
- info->xsync = xsync;
- wr_reg32(info, XSR, xsync);
- spin_unlock_irqrestore(&info->lock, flags);
- return 0;
-}
-
-static int get_xctrl(struct slgt_info *info, int __user *xctrl)
-{
- DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl));
- if (put_user(info->xctrl, xctrl))
- return -EFAULT;
- return 0;
-}
-
-/*
- * set extended control options
- *
- * xctrl[31:19] reserved, must be zero
- * xctrl[18:17] extended sync pattern length in bytes
- * 00 = 1 byte in xsr[7:0]
- * 01 = 2 bytes in xsr[15:0]
- * 10 = 3 bytes in xsr[23:0]
- * 11 = 4 bytes in xsr[31:0]
- * xctrl[16] 1 = enable terminal count, 0=disabled
- * xctrl[15:0] receive terminal count for fixed length packets
- * value is count minus one (0 = 1 byte packet)
- * when terminal count is reached, receiver
- * automatically returns to hunt mode and receive
- * FIFO contents are flushed to DMA buffers with
- * end of frame (EOF) status
- */
-static int set_xctrl(struct slgt_info *info, int xctrl)
-{
- unsigned long flags;
-
- DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl));
- spin_lock_irqsave(&info->lock, flags);
- info->xctrl = xctrl;
- wr_reg32(info, XCR, xctrl);
- spin_unlock_irqrestore(&info->lock, flags);
- return 0;
-}
-
-/*
- * set general purpose IO pin state and direction
- *
- * user_gpio fields:
- * state each bit indicates a pin state
- * smask set bit indicates pin state to set
- * dir each bit indicates a pin direction (0=input, 1=output)
- * dmask set bit indicates pin direction to set
- */
-static int set_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
-{
- unsigned long flags;
- struct gpio_desc gpio;
- __u32 data;
-
- if (!info->gpio_present)
- return -EINVAL;
- if (copy_from_user(&gpio, user_gpio, sizeof(gpio)))
- return -EFAULT;
- DBGINFO(("%s set_gpio state=%08x smask=%08x dir=%08x dmask=%08x\n",
- info->device_name, gpio.state, gpio.smask,
- gpio.dir, gpio.dmask));
-
- spin_lock_irqsave(&info->port_array[0]->lock, flags);
- if (gpio.dmask) {
- data = rd_reg32(info, IODR);
- data |= gpio.dmask & gpio.dir;
- data &= ~(gpio.dmask & ~gpio.dir);
- wr_reg32(info, IODR, data);
- }
- if (gpio.smask) {
- data = rd_reg32(info, IOVR);
- data |= gpio.smask & gpio.state;
- data &= ~(gpio.smask & ~gpio.state);
- wr_reg32(info, IOVR, data);
- }
- spin_unlock_irqrestore(&info->port_array[0]->lock, flags);
-
- return 0;
-}
-
-/*
- * get general purpose IO pin state and direction
- */
-static int get_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
-{
- struct gpio_desc gpio;
- if (!info->gpio_present)
- return -EINVAL;
- gpio.state = rd_reg32(info, IOVR);
- gpio.smask = 0xffffffff;
- gpio.dir = rd_reg32(info, IODR);
- gpio.dmask = 0xffffffff;
- if (copy_to_user(user_gpio, &gpio, sizeof(gpio)))
- return -EFAULT;
- DBGINFO(("%s get_gpio state=%08x dir=%08x\n",
- info->device_name, gpio.state, gpio.dir));
- return 0;
-}
-
-/*
- * conditional wait facility
- */
-static void init_cond_wait(struct cond_wait *w, unsigned int data)
-{
- init_waitqueue_head(&w->q);
- init_waitqueue_entry(&w->wait, current);
- w->data = data;
-}
-
-static void add_cond_wait(struct cond_wait **head, struct cond_wait *w)
-{
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&w->q, &w->wait);
- w->next = *head;
- *head = w;
-}
-
-static void remove_cond_wait(struct cond_wait **head, struct cond_wait *cw)
-{
- struct cond_wait *w, *prev;
- remove_wait_queue(&cw->q, &cw->wait);
- set_current_state(TASK_RUNNING);
- for (w = *head, prev = NULL ; w != NULL ; prev = w, w = w->next) {
- if (w == cw) {
- if (prev != NULL)
- prev->next = w->next;
- else
- *head = w->next;
- break;
- }
- }
-}
-
-static void flush_cond_wait(struct cond_wait **head)
-{
- while (*head != NULL) {
- wake_up_interruptible(&(*head)->q);
- *head = (*head)->next;
- }
-}
-
-/*
- * wait for general purpose I/O pin(s) to enter specified state
- *
- * user_gpio fields:
- * state - bit indicates target pin state
- * smask - set bit indicates watched pin
- *
- * The wait ends when at least one watched pin enters the specified
- * state. When 0 (no error) is returned, user_gpio->state is set to the
- * state of all GPIO pins when the wait ends.
- *
- * Note: Each pin may be a dedicated input, dedicated output, or
- * configurable input/output. The number and configuration of pins
- * varies with the specific adapter model. Only input pins (dedicated
- * or configured) can be monitored with this function.
- */
-static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio)
-{
- unsigned long flags;
- int rc = 0;
- struct gpio_desc gpio;
- struct cond_wait wait;
- u32 state;
-
- if (!info->gpio_present)
- return -EINVAL;
- if (copy_from_user(&gpio, user_gpio, sizeof(gpio)))
- return -EFAULT;
- DBGINFO(("%s wait_gpio() state=%08x smask=%08x\n",
- info->device_name, gpio.state, gpio.smask));
- /* ignore output pins identified by set IODR bit */
- if ((gpio.smask &= ~rd_reg32(info, IODR)) == 0)
- return -EINVAL;
- init_cond_wait(&wait, gpio.smask);
-
- spin_lock_irqsave(&info->port_array[0]->lock, flags);
- /* enable interrupts for watched pins */
- wr_reg32(info, IOER, rd_reg32(info, IOER) | gpio.smask);
- /* get current pin states */
- state = rd_reg32(info, IOVR);
-
- if (gpio.smask & ~(state ^ gpio.state)) {
- /* already in target state */
- gpio.state = state;
- } else {
- /* wait for target state */
- add_cond_wait(&info->gpio_wait_q, &wait);
- spin_unlock_irqrestore(&info->port_array[0]->lock, flags);
- schedule();
- if (signal_pending(current))
- rc = -ERESTARTSYS;
- else
- gpio.state = wait.data;
- spin_lock_irqsave(&info->port_array[0]->lock, flags);
- remove_cond_wait(&info->gpio_wait_q, &wait);
- }
-
- /* disable all GPIO interrupts if no waiting processes */
- if (info->gpio_wait_q == NULL)
- wr_reg32(info, IOER, 0);
- spin_unlock_irqrestore(&info->port_array[0]->lock, flags);
-
- if ((rc == 0) && copy_to_user(user_gpio, &gpio, sizeof(gpio)))
- rc = -EFAULT;
- return rc;
-}
-
-static int modem_input_wait(struct slgt_info *info,int arg)
-{
- unsigned long flags;
- int rc;
- struct mgsl_icount cprev, cnow;
- DECLARE_WAITQUEUE(wait, current);
-
- /* save current irq counts */
- spin_lock_irqsave(&info->lock,flags);
- cprev = info->icount;
- add_wait_queue(&info->status_event_wait_q, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->lock,flags);
-
- for(;;) {
- schedule();
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
-
- /* get new irq counts */
- spin_lock_irqsave(&info->lock,flags);
- cnow = info->icount;
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->lock,flags);
-
- /* if no change, wait aborted for some reason */
- if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
- cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
- rc = -EIO;
- break;
- }
-
- /* check for change in caller specified modem input */
- if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
- (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
- (arg & TIOCM_CD && cnow.dcd != cprev.dcd) ||
- (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
- rc = 0;
- break;
- }
-
- cprev = cnow;
- }
- remove_wait_queue(&info->status_event_wait_q, &wait);
- set_current_state(TASK_RUNNING);
- return rc;
-}
-
-/*
- * return state of serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty, struct file *file)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned int result;
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
- ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
- ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
- ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) +
- ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
- ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
- DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result));
- return result;
-}
-
-/*
- * set modem control signals (DTR/RTS)
- *
- * cmd signal command: TIOCMBIS = set bit TIOCMBIC = clear bit
- * TIOCMSET = set/clear signal values
- * value bit mask for command
- */
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- struct slgt_info *info = tty->driver_data;
- unsigned long flags;
-
- DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear));
-
- if (set & TIOCM_RTS)
- info->signals |= SerialSignal_RTS;
- if (set & TIOCM_DTR)
- info->signals |= SerialSignal_DTR;
- if (clear & TIOCM_RTS)
- info->signals &= ~SerialSignal_RTS;
- if (clear & TIOCM_DTR)
- info->signals &= ~SerialSignal_DTR;
-
- spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-static int carrier_raised(struct tty_port *port)
-{
- unsigned long flags;
- struct slgt_info *info = container_of(port, struct slgt_info, port);
-
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- return (info->signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
- unsigned long flags;
- struct slgt_info *info = container_of(port, struct slgt_info, port);
-
- spin_lock_irqsave(&info->lock,flags);
- if (on)
- info->signals |= SerialSignal_RTS + SerialSignal_DTR;
- else
- info->signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-
-/*
- * block current process until the device is ready to open
- */
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
- struct slgt_info *info)
-{
- DECLARE_WAITQUEUE(wait, current);
- int retval;
- bool do_clocal = false;
- bool extra_count = false;
- unsigned long flags;
- int cd;
- struct tty_port *port = &info->port;
-
- DBGINFO(("%s block_til_ready\n", tty->driver->name));
-
- if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
- /* nonblock mode is set or port is not enabled */
- port->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- if (tty->termios->c_cflag & CLOCAL)
- do_clocal = true;
-
- /* Wait for carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
- * close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
-
- retval = 0;
- add_wait_queue(&port->open_wait, &wait);
-
- spin_lock_irqsave(&info->lock, flags);
- if (!tty_hung_up_p(filp)) {
- extra_count = true;
- port->count--;
- }
- spin_unlock_irqrestore(&info->lock, flags);
- port->blocked_open++;
-
- while (1) {
- if ((tty->termios->c_cflag & CBAUD))
- tty_port_raise_dtr_rts(port);
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
- retval = (port->flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS;
- break;
- }
-
- cd = tty_port_carrier_raised(port);
-
- if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd ))
- break;
-
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
-
- DBGINFO(("%s block_til_ready wait\n", tty->driver->name));
- tty_unlock();
- schedule();
- tty_lock();
- }
-
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
-
- if (extra_count)
- port->count++;
- port->blocked_open--;
-
- if (!retval)
- port->flags |= ASYNC_NORMAL_ACTIVE;
-
- DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval));
- return retval;
-}
-
-static int alloc_tmp_rbuf(struct slgt_info *info)
-{
- info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL);
- if (info->tmp_rbuf == NULL)
- return -ENOMEM;
- return 0;
-}
-
-static void free_tmp_rbuf(struct slgt_info *info)
-{
- kfree(info->tmp_rbuf);
- info->tmp_rbuf = NULL;
-}
-
-/*
- * allocate DMA descriptor lists.
- */
-static int alloc_desc(struct slgt_info *info)
-{
- unsigned int i;
- unsigned int pbufs;
-
- /* allocate memory to hold descriptor lists */
- info->bufs = pci_alloc_consistent(info->pdev, DESC_LIST_SIZE, &info->bufs_dma_addr);
- if (info->bufs == NULL)
- return -ENOMEM;
-
- memset(info->bufs, 0, DESC_LIST_SIZE);
-
- info->rbufs = (struct slgt_desc*)info->bufs;
- info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count;
-
- pbufs = (unsigned int)info->bufs_dma_addr;
-
- /*
- * Build circular lists of descriptors
- */
-
- for (i=0; i < info->rbuf_count; i++) {
- /* physical address of this descriptor */
- info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc));
-
- /* physical address of next descriptor */
- if (i == info->rbuf_count - 1)
- info->rbufs[i].next = cpu_to_le32(pbufs);
- else
- info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc)));
- set_desc_count(info->rbufs[i], DMABUFSIZE);
- }
-
- for (i=0; i < info->tbuf_count; i++) {
- /* physical address of this descriptor */
- info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc));
-
- /* physical address of next descriptor */
- if (i == info->tbuf_count - 1)
- info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc));
- else
- info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc)));
- }
-
- return 0;
-}
-
-static void free_desc(struct slgt_info *info)
-{
- if (info->bufs != NULL) {
- pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr);
- info->bufs = NULL;
- info->rbufs = NULL;
- info->tbufs = NULL;
- }
-}
-
-static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count)
-{
- int i;
- for (i=0; i < count; i++) {
- if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL)
- return -ENOMEM;
- bufs[i].pbuf = cpu_to_le32((unsigned int)bufs[i].buf_dma_addr);
- }
- return 0;
-}
-
-static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count)
-{
- int i;
- for (i=0; i < count; i++) {
- if (bufs[i].buf == NULL)
- continue;
- pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr);
- bufs[i].buf = NULL;
- }
-}
-
-static int alloc_dma_bufs(struct slgt_info *info)
-{
- info->rbuf_count = 32;
- info->tbuf_count = 32;
-
- if (alloc_desc(info) < 0 ||
- alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 ||
- alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 ||
- alloc_tmp_rbuf(info) < 0) {
- DBGERR(("%s DMA buffer alloc fail\n", info->device_name));
- return -ENOMEM;
- }
- reset_rbufs(info);
- return 0;
-}
-
-static void free_dma_bufs(struct slgt_info *info)
-{
- if (info->bufs) {
- free_bufs(info, info->rbufs, info->rbuf_count);
- free_bufs(info, info->tbufs, info->tbuf_count);
- free_desc(info);
- }
- free_tmp_rbuf(info);
-}
-
-static int claim_resources(struct slgt_info *info)
-{
- if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) {
- DBGERR(("%s reg addr conflict, addr=%08X\n",
- info->device_name, info->phys_reg_addr));
- info->init_error = DiagStatus_AddressConflict;
- goto errout;
- }
- else
- info->reg_addr_requested = true;
-
- info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE);
- if (!info->reg_addr) {
- DBGERR(("%s cant map device registers, addr=%08X\n",
- info->device_name, info->phys_reg_addr));
- info->init_error = DiagStatus_CantAssignPciResources;
- goto errout;
- }
- return 0;
-
-errout:
- release_resources(info);
- return -ENODEV;
-}
-
-static void release_resources(struct slgt_info *info)
-{
- if (info->irq_requested) {
- free_irq(info->irq_level, info);
- info->irq_requested = false;
- }
-
- if (info->reg_addr_requested) {
- release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE);
- info->reg_addr_requested = false;
- }
-
- if (info->reg_addr) {
- iounmap(info->reg_addr);
- info->reg_addr = NULL;
- }
-}
-
-/* Add the specified device instance data structure to the
- * global linked list of devices and increment the device count.
- */
-static void add_device(struct slgt_info *info)
-{
- char *devstr;
-
- info->next_device = NULL;
- info->line = slgt_device_count;
- sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line);
-
- if (info->line < MAX_DEVICES) {
- if (maxframe[info->line])
- info->max_frame_size = maxframe[info->line];
- }
-
- slgt_device_count++;
-
- if (!slgt_device_list)
- slgt_device_list = info;
- else {
- struct slgt_info *current_dev = slgt_device_list;
- while(current_dev->next_device)
- current_dev = current_dev->next_device;
- current_dev->next_device = info;
- }
-
- if (info->max_frame_size < 4096)
- info->max_frame_size = 4096;
- else if (info->max_frame_size > 65535)
- info->max_frame_size = 65535;
-
- switch(info->pdev->device) {
- case SYNCLINK_GT_DEVICE_ID:
- devstr = "GT";
- break;
- case SYNCLINK_GT2_DEVICE_ID:
- devstr = "GT2";
- break;
- case SYNCLINK_GT4_DEVICE_ID:
- devstr = "GT4";
- break;
- case SYNCLINK_AC_DEVICE_ID:
- devstr = "AC";
- info->params.mode = MGSL_MODE_ASYNC;
- break;
- default:
- devstr = "(unknown model)";
- }
- printk("SyncLink %s %s IO=%08x IRQ=%d MaxFrameSize=%u\n",
- devstr, info->device_name, info->phys_reg_addr,
- info->irq_level, info->max_frame_size);
-
-#if SYNCLINK_GENERIC_HDLC
- hdlcdev_init(info);
-#endif
-}
-
-static const struct tty_port_operations slgt_port_ops = {
- .carrier_raised = carrier_raised,
- .dtr_rts = dtr_rts,
-};
-
-/*
- * allocate device instance structure, return NULL on failure
- */
-static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
-{
- struct slgt_info *info;
-
- info = kzalloc(sizeof(struct slgt_info), GFP_KERNEL);
-
- if (!info) {
- DBGERR(("%s device alloc failed adapter=%d port=%d\n",
- driver_name, adapter_num, port_num));
- } else {
- tty_port_init(&info->port);
- info->port.ops = &slgt_port_ops;
- info->magic = MGSL_MAGIC;
- INIT_WORK(&info->task, bh_handler);
- info->max_frame_size = 4096;
- info->base_clock = 14745600;
- info->rbuf_fill_level = DMABUFSIZE;
- info->port.close_delay = 5*HZ/10;
- info->port.closing_wait = 30*HZ;
- init_waitqueue_head(&info->status_event_wait_q);
- init_waitqueue_head(&info->event_wait_q);
- spin_lock_init(&info->netlock);
- memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
- info->idle_mode = HDLC_TXIDLE_FLAGS;
- info->adapter_num = adapter_num;
- info->port_num = port_num;
-
- setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info);
- setup_timer(&info->rx_timer, rx_timeout, (unsigned long)info);
-
- /* Copy configuration info to device instance data */
- info->pdev = pdev;
- info->irq_level = pdev->irq;
- info->phys_reg_addr = pci_resource_start(pdev,0);
-
- info->bus_type = MGSL_BUS_TYPE_PCI;
- info->irq_flags = IRQF_SHARED;
-
- info->init_error = -1; /* assume error, set to 0 on successful init */
- }
-
- return info;
-}
-
-static void device_init(int adapter_num, struct pci_dev *pdev)
-{
- struct slgt_info *port_array[SLGT_MAX_PORTS];
- int i;
- int port_count = 1;
-
- if (pdev->device == SYNCLINK_GT2_DEVICE_ID)
- port_count = 2;
- else if (pdev->device == SYNCLINK_GT4_DEVICE_ID)
- port_count = 4;
-
- /* allocate device instances for all ports */
- for (i=0; i < port_count; ++i) {
- port_array[i] = alloc_dev(adapter_num, i, pdev);
- if (port_array[i] == NULL) {
- for (--i; i >= 0; --i)
- kfree(port_array[i]);
- return;
- }
- }
-
- /* give copy of port_array to all ports and add to device list */
- for (i=0; i < port_count; ++i) {
- memcpy(port_array[i]->port_array, port_array, sizeof(port_array));
- add_device(port_array[i]);
- port_array[i]->port_count = port_count;
- spin_lock_init(&port_array[i]->lock);
- }
-
- /* Allocate and claim adapter resources */
- if (!claim_resources(port_array[0])) {
-
- alloc_dma_bufs(port_array[0]);
-
- /* copy resource information from first port to others */
- for (i = 1; i < port_count; ++i) {
- port_array[i]->irq_level = port_array[0]->irq_level;
- port_array[i]->reg_addr = port_array[0]->reg_addr;
- alloc_dma_bufs(port_array[i]);
- }
-
- if (request_irq(port_array[0]->irq_level,
- slgt_interrupt,
- port_array[0]->irq_flags,
- port_array[0]->device_name,
- port_array[0]) < 0) {
- DBGERR(("%s request_irq failed IRQ=%d\n",
- port_array[0]->device_name,
- port_array[0]->irq_level));
- } else {
- port_array[0]->irq_requested = true;
- adapter_test(port_array[0]);
- for (i=1 ; i < port_count ; i++) {
- port_array[i]->init_error = port_array[0]->init_error;
- port_array[i]->gpio_present = port_array[0]->gpio_present;
- }
- }
- }
-
- for (i=0; i < port_count; ++i)
- tty_register_device(serial_driver, port_array[i]->line, &(port_array[i]->pdev->dev));
-}
-
-static int __devinit init_one(struct pci_dev *dev,
- const struct pci_device_id *ent)
-{
- if (pci_enable_device(dev)) {
- printk("error enabling pci device %p\n", dev);
- return -EIO;
- }
- pci_set_master(dev);
- device_init(slgt_device_count, dev);
- return 0;
-}
-
-static void __devexit remove_one(struct pci_dev *dev)
-{
-}
-
-static const struct tty_operations ops = {
- .open = open,
- .close = close,
- .write = write,
- .put_char = put_char,
- .flush_chars = flush_chars,
- .write_room = write_room,
- .chars_in_buffer = chars_in_buffer,
- .flush_buffer = flush_buffer,
- .ioctl = ioctl,
- .compat_ioctl = slgt_compat_ioctl,
- .throttle = throttle,
- .unthrottle = unthrottle,
- .send_xchar = send_xchar,
- .break_ctl = set_break,
- .wait_until_sent = wait_until_sent,
- .set_termios = set_termios,
- .stop = tx_hold,
- .start = tx_release,
- .hangup = hangup,
- .tiocmget = tiocmget,
- .tiocmset = tiocmset,
- .get_icount = get_icount,
- .proc_fops = &synclink_gt_proc_fops,
-};
-
-static void slgt_cleanup(void)
-{
- int rc;
- struct slgt_info *info;
- struct slgt_info *tmp;
-
- printk(KERN_INFO "unload %s\n", driver_name);
-
- if (serial_driver) {
- for (info=slgt_device_list ; info != NULL ; info=info->next_device)
- tty_unregister_device(serial_driver, info->line);
- if ((rc = tty_unregister_driver(serial_driver)))
- DBGERR(("tty_unregister_driver error=%d\n", rc));
- put_tty_driver(serial_driver);
- }
-
- /* reset devices */
- info = slgt_device_list;
- while(info) {
- reset_port(info);
- info = info->next_device;
- }
-
- /* release devices */
- info = slgt_device_list;
- while(info) {
-#if SYNCLINK_GENERIC_HDLC
- hdlcdev_exit(info);
-#endif
- free_dma_bufs(info);
- free_tmp_rbuf(info);
- if (info->port_num == 0)
- release_resources(info);
- tmp = info;
- info = info->next_device;
- kfree(tmp);
- }
-
- if (pci_registered)
- pci_unregister_driver(&pci_driver);
-}
-
-/*
- * Driver initialization entry point.
- */
-static int __init slgt_init(void)
-{
- int rc;
-
- printk(KERN_INFO "%s\n", driver_name);
-
- serial_driver = alloc_tty_driver(MAX_DEVICES);
- if (!serial_driver) {
- printk("%s can't allocate tty driver\n", driver_name);
- return -ENOMEM;
- }
-
- /* Initialize the tty_driver structure */
-
- serial_driver->owner = THIS_MODULE;
- serial_driver->driver_name = tty_driver_name;
- serial_driver->name = tty_dev_prefix;
- serial_driver->major = ttymajor;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->init_termios.c_ispeed = 9600;
- serial_driver->init_termios.c_ospeed = 9600;
- serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
- tty_set_operations(serial_driver, &ops);
- if ((rc = tty_register_driver(serial_driver)) < 0) {
- DBGERR(("%s can't register serial driver\n", driver_name));
- put_tty_driver(serial_driver);
- serial_driver = NULL;
- goto error;
- }
-
- printk(KERN_INFO "%s, tty major#%d\n",
- driver_name, serial_driver->major);
-
- slgt_device_count = 0;
- if ((rc = pci_register_driver(&pci_driver)) < 0) {
- printk("%s pci_register_driver error=%d\n", driver_name, rc);
- goto error;
- }
- pci_registered = true;
-
- if (!slgt_device_list)
- printk("%s no devices found\n",driver_name);
-
- return 0;
-
-error:
- slgt_cleanup();
- return rc;
-}
-
-static void __exit slgt_exit(void)
-{
- slgt_cleanup();
-}
-
-module_init(slgt_init);
-module_exit(slgt_exit);
-
-/*
- * register access routines
- */
-
-#define CALC_REGADDR() \
- unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
- if (addr >= 0x80) \
- reg_addr += (info->port_num) * 32; \
- else if (addr >= 0x40) \
- reg_addr += (info->port_num) * 16;
-
-static __u8 rd_reg8(struct slgt_info *info, unsigned int addr)
-{
- CALC_REGADDR();
- return readb((void __iomem *)reg_addr);
-}
-
-static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value)
-{
- CALC_REGADDR();
- writeb(value, (void __iomem *)reg_addr);
-}
-
-static __u16 rd_reg16(struct slgt_info *info, unsigned int addr)
-{
- CALC_REGADDR();
- return readw((void __iomem *)reg_addr);
-}
-
-static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value)
-{
- CALC_REGADDR();
- writew(value, (void __iomem *)reg_addr);
-}
-
-static __u32 rd_reg32(struct slgt_info *info, unsigned int addr)
-{
- CALC_REGADDR();
- return readl((void __iomem *)reg_addr);
-}
-
-static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value)
-{
- CALC_REGADDR();
- writel(value, (void __iomem *)reg_addr);
-}
-
-static void rdma_reset(struct slgt_info *info)
-{
- unsigned int i;
-
- /* set reset bit */
- wr_reg32(info, RDCSR, BIT1);
-
- /* wait for enable bit cleared */
- for(i=0 ; i < 1000 ; i++)
- if (!(rd_reg32(info, RDCSR) & BIT0))
- break;
-}
-
-static void tdma_reset(struct slgt_info *info)
-{
- unsigned int i;
-
- /* set reset bit */
- wr_reg32(info, TDCSR, BIT1);
-
- /* wait for enable bit cleared */
- for(i=0 ; i < 1000 ; i++)
- if (!(rd_reg32(info, TDCSR) & BIT0))
- break;
-}
-
-/*
- * enable internal loopback
- * TxCLK and RxCLK are generated from BRG
- * and TxD is looped back to RxD internally.
- */
-static void enable_loopback(struct slgt_info *info)
-{
- /* SCR (serial control) BIT2=looopback enable */
- wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT2));
-
- if (info->params.mode != MGSL_MODE_ASYNC) {
- /* CCR (clock control)
- * 07..05 tx clock source (010 = BRG)
- * 04..02 rx clock source (010 = BRG)
- * 01 auxclk enable (0 = disable)
- * 00 BRG enable (1 = enable)
- *
- * 0100 1001
- */
- wr_reg8(info, CCR, 0x49);
-
- /* set speed if available, otherwise use default */
- if (info->params.clock_speed)
- set_rate(info, info->params.clock_speed);
- else
- set_rate(info, 3686400);
- }
-}
-
-/*
- * set baud rate generator to specified rate
- */
-static void set_rate(struct slgt_info *info, u32 rate)
-{
- unsigned int div;
- unsigned int osc = info->base_clock;
-
- /* div = osc/rate - 1
- *
- * Round div up if osc/rate is not integer to
- * force to next slowest rate.
- */
-
- if (rate) {
- div = osc/rate;
- if (!(osc % rate) && div)
- div--;
- wr_reg16(info, BDR, (unsigned short)div);
- }
-}
-
-static void rx_stop(struct slgt_info *info)
-{
- unsigned short val;
-
- /* disable and reset receiver */
- val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */
- wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */
- wr_reg16(info, RCR, val); /* clear reset bit */
-
- slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA + IRQ_RXIDLE);
-
- /* clear pending rx interrupts */
- wr_reg16(info, SSR, IRQ_RXIDLE + IRQ_RXOVER);
-
- rdma_reset(info);
-
- info->rx_enabled = false;
- info->rx_restart = false;
-}
-
-static void rx_start(struct slgt_info *info)
-{
- unsigned short val;
-
- slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA);
-
- /* clear pending rx overrun IRQ */
- wr_reg16(info, SSR, IRQ_RXOVER);
-
- /* reset and disable receiver */
- val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */
- wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */
- wr_reg16(info, RCR, val); /* clear reset bit */
-
- rdma_reset(info);
- reset_rbufs(info);
-
- if (info->rx_pio) {
- /* rx request when rx FIFO not empty */
- wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) & ~BIT14));
- slgt_irq_on(info, IRQ_RXDATA);
- if (info->params.mode == MGSL_MODE_ASYNC) {
- /* enable saving of rx status */
- wr_reg32(info, RDCSR, BIT6);
- }
- } else {
- /* rx request when rx FIFO half full */
- wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT14));
- /* set 1st descriptor address */
- wr_reg32(info, RDDAR, info->rbufs[0].pdesc);
-
- if (info->params.mode != MGSL_MODE_ASYNC) {
- /* enable rx DMA and DMA interrupt */
- wr_reg32(info, RDCSR, (BIT2 + BIT0));
- } else {
- /* enable saving of rx status, rx DMA and DMA interrupt */
- wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0));
- }
- }
-
- slgt_irq_on(info, IRQ_RXOVER);
-
- /* enable receiver */
- wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | BIT1));
-
- info->rx_restart = false;
- info->rx_enabled = true;
-}
-
-static void tx_start(struct slgt_info *info)
-{
- if (!info->tx_enabled) {
- wr_reg16(info, TCR,
- (unsigned short)((rd_reg16(info, TCR) | BIT1) & ~BIT2));
- info->tx_enabled = true;
- }
-
- if (desc_count(info->tbufs[info->tbuf_start])) {
- info->drop_rts_on_tx_done = false;
-
- if (info->params.mode != MGSL_MODE_ASYNC) {
- if (info->params.flags & HDLC_FLAG_AUTO_RTS) {
- get_signals(info);
- if (!(info->signals & SerialSignal_RTS)) {
- info->signals |= SerialSignal_RTS;
- set_signals(info);
- info->drop_rts_on_tx_done = true;
- }
- }
-
- slgt_irq_off(info, IRQ_TXDATA);
- slgt_irq_on(info, IRQ_TXUNDER + IRQ_TXIDLE);
- /* clear tx idle and underrun status bits */
- wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER));
- } else {
- slgt_irq_off(info, IRQ_TXDATA);
- slgt_irq_on(info, IRQ_TXIDLE);
- /* clear tx idle status bit */
- wr_reg16(info, SSR, IRQ_TXIDLE);
- }
- /* set 1st descriptor address and start DMA */
- wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc);
- wr_reg32(info, TDCSR, BIT2 + BIT0);
- info->tx_active = true;
- }
-}
-
-static void tx_stop(struct slgt_info *info)
-{
- unsigned short val;
-
- del_timer(&info->tx_timer);
-
- tdma_reset(info);
-
- /* reset and disable transmitter */
- val = rd_reg16(info, TCR) & ~BIT1; /* clear enable bit */
- wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */
-
- slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER);
-
- /* clear tx idle and underrun status bit */
- wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER));
-
- reset_tbufs(info);
-
- info->tx_enabled = false;
- info->tx_active = false;
-}
-
-static void reset_port(struct slgt_info *info)
-{
- if (!info->reg_addr)
- return;
-
- tx_stop(info);
- rx_stop(info);
-
- info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
- set_signals(info);
-
- slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
-}
-
-static void reset_adapter(struct slgt_info *info)
-{
- int i;
- for (i=0; i < info->port_count; ++i) {
- if (info->port_array[i])
- reset_port(info->port_array[i]);
- }
-}
-
-static void async_mode(struct slgt_info *info)
-{
- unsigned short val;
-
- slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
- tx_stop(info);
- rx_stop(info);
-
- /* TCR (tx control)
- *
- * 15..13 mode, 010=async
- * 12..10 encoding, 000=NRZ
- * 09 parity enable
- * 08 1=odd parity, 0=even parity
- * 07 1=RTS driver control
- * 06 1=break enable
- * 05..04 character length
- * 00=5 bits
- * 01=6 bits
- * 10=7 bits
- * 11=8 bits
- * 03 0=1 stop bit, 1=2 stop bits
- * 02 reset
- * 01 enable
- * 00 auto-CTS enable
- */
- val = 0x4000;
-
- if (info->if_mode & MGSL_INTERFACE_RTS_EN)
- val |= BIT7;
-
- if (info->params.parity != ASYNC_PARITY_NONE) {
- val |= BIT9;
- if (info->params.parity == ASYNC_PARITY_ODD)
- val |= BIT8;
- }
-
- switch (info->params.data_bits)
- {
- case 6: val |= BIT4; break;
- case 7: val |= BIT5; break;
- case 8: val |= BIT5 + BIT4; break;
- }
-
- if (info->params.stop_bits != 1)
- val |= BIT3;
-
- if (info->params.flags & HDLC_FLAG_AUTO_CTS)
- val |= BIT0;
-
- wr_reg16(info, TCR, val);
-
- /* RCR (rx control)
- *
- * 15..13 mode, 010=async
- * 12..10 encoding, 000=NRZ
- * 09 parity enable
- * 08 1=odd parity, 0=even parity
- * 07..06 reserved, must be 0
- * 05..04 character length
- * 00=5 bits
- * 01=6 bits
- * 10=7 bits
- * 11=8 bits
- * 03 reserved, must be zero
- * 02 reset
- * 01 enable
- * 00 auto-DCD enable
- */
- val = 0x4000;
-
- if (info->params.parity != ASYNC_PARITY_NONE) {
- val |= BIT9;
- if (info->params.parity == ASYNC_PARITY_ODD)
- val |= BIT8;
- }
-
- switch (info->params.data_bits)
- {
- case 6: val |= BIT4; break;
- case 7: val |= BIT5; break;
- case 8: val |= BIT5 + BIT4; break;
- }
-
- if (info->params.flags & HDLC_FLAG_AUTO_DCD)
- val |= BIT0;
-
- wr_reg16(info, RCR, val);
-
- /* CCR (clock control)
- *
- * 07..05 011 = tx clock source is BRG/16
- * 04..02 010 = rx clock source is BRG
- * 01 0 = auxclk disabled
- * 00 1 = BRG enabled
- *
- * 0110 1001
- */
- wr_reg8(info, CCR, 0x69);
-
- msc_set_vcr(info);
-
- /* SCR (serial control)
- *
- * 15 1=tx req on FIFO half empty
- * 14 1=rx req on FIFO half full
- * 13 tx data IRQ enable
- * 12 tx idle IRQ enable
- * 11 rx break on IRQ enable
- * 10 rx data IRQ enable
- * 09 rx break off IRQ enable
- * 08 overrun IRQ enable
- * 07 DSR IRQ enable
- * 06 CTS IRQ enable
- * 05 DCD IRQ enable
- * 04 RI IRQ enable
- * 03 0=16x sampling, 1=8x sampling
- * 02 1=txd->rxd internal loopback enable
- * 01 reserved, must be zero
- * 00 1=master IRQ enable
- */
- val = BIT15 + BIT14 + BIT0;
- /* JCR[8] : 1 = x8 async mode feature available */
- if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate &&
- ((info->base_clock < (info->params.data_rate * 16)) ||
- (info->base_clock % (info->params.data_rate * 16)))) {
- /* use 8x sampling */
- val |= BIT3;
- set_rate(info, info->params.data_rate * 8);
- } else {
- /* use 16x sampling */
- set_rate(info, info->params.data_rate * 16);
- }
- wr_reg16(info, SCR, val);
-
- slgt_irq_on(info, IRQ_RXBREAK | IRQ_RXOVER);
-
- if (info->params.loopback)
- enable_loopback(info);
-}
-
-static void sync_mode(struct slgt_info *info)
-{
- unsigned short val;
-
- slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
- tx_stop(info);
- rx_stop(info);
-
- /* TCR (tx control)
- *
- * 15..13 mode
- * 000=HDLC/SDLC
- * 001=raw bit synchronous
- * 010=asynchronous/isochronous
- * 011=monosync byte synchronous
- * 100=bisync byte synchronous
- * 101=xsync byte synchronous
- * 12..10 encoding
- * 09 CRC enable
- * 08 CRC32
- * 07 1=RTS driver control
- * 06 preamble enable
- * 05..04 preamble length
- * 03 share open/close flag
- * 02 reset
- * 01 enable
- * 00 auto-CTS enable
- */
- val = BIT2;
-
- switch(info->params.mode) {
- case MGSL_MODE_XSYNC:
- val |= BIT15 + BIT13;
- break;
- case MGSL_MODE_MONOSYNC: val |= BIT14 + BIT13; break;
- case MGSL_MODE_BISYNC: val |= BIT15; break;
- case MGSL_MODE_RAW: val |= BIT13; break;
- }
- if (info->if_mode & MGSL_INTERFACE_RTS_EN)
- val |= BIT7;
-
- switch(info->params.encoding)
- {
- case HDLC_ENCODING_NRZB: val |= BIT10; break;
- case HDLC_ENCODING_NRZI_MARK: val |= BIT11; break;
- case HDLC_ENCODING_NRZI: val |= BIT11 + BIT10; break;
- case HDLC_ENCODING_BIPHASE_MARK: val |= BIT12; break;
- case HDLC_ENCODING_BIPHASE_SPACE: val |= BIT12 + BIT10; break;
- case HDLC_ENCODING_BIPHASE_LEVEL: val |= BIT12 + BIT11; break;
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: val |= BIT12 + BIT11 + BIT10; break;
- }
-
- switch (info->params.crc_type & HDLC_CRC_MASK)
- {
- case HDLC_CRC_16_CCITT: val |= BIT9; break;
- case HDLC_CRC_32_CCITT: val |= BIT9 + BIT8; break;
- }
-
- if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE)
- val |= BIT6;
-
- switch (info->params.preamble_length)
- {
- case HDLC_PREAMBLE_LENGTH_16BITS: val |= BIT5; break;
- case HDLC_PREAMBLE_LENGTH_32BITS: val |= BIT4; break;
- case HDLC_PREAMBLE_LENGTH_64BITS: val |= BIT5 + BIT4; break;
- }
-
- if (info->params.flags & HDLC_FLAG_AUTO_CTS)
- val |= BIT0;
-
- wr_reg16(info, TCR, val);
-
- /* TPR (transmit preamble) */
-
- switch (info->params.preamble)
- {
- case HDLC_PREAMBLE_PATTERN_FLAGS: val = 0x7e; break;
- case HDLC_PREAMBLE_PATTERN_ONES: val = 0xff; break;
- case HDLC_PREAMBLE_PATTERN_ZEROS: val = 0x00; break;
- case HDLC_PREAMBLE_PATTERN_10: val = 0x55; break;
- case HDLC_PREAMBLE_PATTERN_01: val = 0xaa; break;
- default: val = 0x7e; break;
- }
- wr_reg8(info, TPR, (unsigned char)val);
-
- /* RCR (rx control)
- *
- * 15..13 mode
- * 000=HDLC/SDLC
- * 001=raw bit synchronous
- * 010=asynchronous/isochronous
- * 011=monosync byte synchronous
- * 100=bisync byte synchronous
- * 101=xsync byte synchronous
- * 12..10 encoding
- * 09 CRC enable
- * 08 CRC32
- * 07..03 reserved, must be 0
- * 02 reset
- * 01 enable
- * 00 auto-DCD enable
- */
- val = 0;
-
- switch(info->params.mode) {
- case MGSL_MODE_XSYNC:
- val |= BIT15 + BIT13;
- break;
- case MGSL_MODE_MONOSYNC: val |= BIT14 + BIT13; break;
- case MGSL_MODE_BISYNC: val |= BIT15; break;
- case MGSL_MODE_RAW: val |= BIT13; break;
- }
-
- switch(info->params.encoding)
- {
- case HDLC_ENCODING_NRZB: val |= BIT10; break;
- case HDLC_ENCODING_NRZI_MARK: val |= BIT11; break;
- case HDLC_ENCODING_NRZI: val |= BIT11 + BIT10; break;
- case HDLC_ENCODING_BIPHASE_MARK: val |= BIT12; break;
- case HDLC_ENCODING_BIPHASE_SPACE: val |= BIT12 + BIT10; break;
- case HDLC_ENCODING_BIPHASE_LEVEL: val |= BIT12 + BIT11; break;
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: val |= BIT12 + BIT11 + BIT10; break;
- }
-
- switch (info->params.crc_type & HDLC_CRC_MASK)
- {
- case HDLC_CRC_16_CCITT: val |= BIT9; break;
- case HDLC_CRC_32_CCITT: val |= BIT9 + BIT8; break;
- }
-
- if (info->params.flags & HDLC_FLAG_AUTO_DCD)
- val |= BIT0;
-
- wr_reg16(info, RCR, val);
-
- /* CCR (clock control)
- *
- * 07..05 tx clock source
- * 04..02 rx clock source
- * 01 auxclk enable
- * 00 BRG enable
- */
- val = 0;
-
- if (info->params.flags & HDLC_FLAG_TXC_BRG)
- {
- // when RxC source is DPLL, BRG generates 16X DPLL
- // reference clock, so take TxC from BRG/16 to get
- // transmit clock at actual data rate
- if (info->params.flags & HDLC_FLAG_RXC_DPLL)
- val |= BIT6 + BIT5; /* 011, txclk = BRG/16 */
- else
- val |= BIT6; /* 010, txclk = BRG */
- }
- else if (info->params.flags & HDLC_FLAG_TXC_DPLL)
- val |= BIT7; /* 100, txclk = DPLL Input */
- else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN)
- val |= BIT5; /* 001, txclk = RXC Input */
-
- if (info->params.flags & HDLC_FLAG_RXC_BRG)
- val |= BIT3; /* 010, rxclk = BRG */
- else if (info->params.flags & HDLC_FLAG_RXC_DPLL)
- val |= BIT4; /* 100, rxclk = DPLL */
- else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN)
- val |= BIT2; /* 001, rxclk = TXC Input */
-
- if (info->params.clock_speed)
- val |= BIT1 + BIT0;
-
- wr_reg8(info, CCR, (unsigned char)val);
-
- if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL))
- {
- // program DPLL mode
- switch(info->params.encoding)
- {
- case HDLC_ENCODING_BIPHASE_MARK:
- case HDLC_ENCODING_BIPHASE_SPACE:
- val = BIT7; break;
- case HDLC_ENCODING_BIPHASE_LEVEL:
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL:
- val = BIT7 + BIT6; break;
- default: val = BIT6; // NRZ encodings
- }
- wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | val));
-
- // DPLL requires a 16X reference clock from BRG
- set_rate(info, info->params.clock_speed * 16);
- }
- else
- set_rate(info, info->params.clock_speed);
-
- tx_set_idle(info);
-
- msc_set_vcr(info);
-
- /* SCR (serial control)
- *
- * 15 1=tx req on FIFO half empty
- * 14 1=rx req on FIFO half full
- * 13 tx data IRQ enable
- * 12 tx idle IRQ enable
- * 11 underrun IRQ enable
- * 10 rx data IRQ enable
- * 09 rx idle IRQ enable
- * 08 overrun IRQ enable
- * 07 DSR IRQ enable
- * 06 CTS IRQ enable
- * 05 DCD IRQ enable
- * 04 RI IRQ enable
- * 03 reserved, must be zero
- * 02 1=txd->rxd internal loopback enable
- * 01 reserved, must be zero
- * 00 1=master IRQ enable
- */
- wr_reg16(info, SCR, BIT15 + BIT14 + BIT0);
-
- if (info->params.loopback)
- enable_loopback(info);
-}
-
-/*
- * set transmit idle mode
- */
-static void tx_set_idle(struct slgt_info *info)
-{
- unsigned char val;
- unsigned short tcr;
-
- /* if preamble enabled (tcr[6] == 1) then tx idle size = 8 bits
- * else tcr[5:4] = tx idle size: 00 = 8 bits, 01 = 16 bits
- */
- tcr = rd_reg16(info, TCR);
- if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) {
- /* disable preamble, set idle size to 16 bits */
- tcr = (tcr & ~(BIT6 + BIT5)) | BIT4;
- /* MSB of 16 bit idle specified in tx preamble register (TPR) */
- wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff));
- } else if (!(tcr & BIT6)) {
- /* preamble is disabled, set idle size to 8 bits */
- tcr &= ~(BIT5 + BIT4);
- }
- wr_reg16(info, TCR, tcr);
-
- if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) {
- /* LSB of custom tx idle specified in tx idle register */
- val = (unsigned char)(info->idle_mode & 0xff);
- } else {
- /* standard 8 bit idle patterns */
- switch(info->idle_mode)
- {
- case HDLC_TXIDLE_FLAGS: val = 0x7e; break;
- case HDLC_TXIDLE_ALT_ZEROS_ONES:
- case HDLC_TXIDLE_ALT_MARK_SPACE: val = 0xaa; break;
- case HDLC_TXIDLE_ZEROS:
- case HDLC_TXIDLE_SPACE: val = 0x00; break;
- default: val = 0xff;
- }
- }
-
- wr_reg8(info, TIR, val);
-}
-
-/*
- * get state of V24 status (input) signals
- */
-static void get_signals(struct slgt_info *info)
-{
- unsigned short status = rd_reg16(info, SSR);
-
- /* clear all serial signals except DTR and RTS */
- info->signals &= SerialSignal_DTR + SerialSignal_RTS;
-
- if (status & BIT3)
- info->signals |= SerialSignal_DSR;
- if (status & BIT2)
- info->signals |= SerialSignal_CTS;
- if (status & BIT1)
- info->signals |= SerialSignal_DCD;
- if (status & BIT0)
- info->signals |= SerialSignal_RI;
-}
-
-/*
- * set V.24 Control Register based on current configuration
- */
-static void msc_set_vcr(struct slgt_info *info)
-{
- unsigned char val = 0;
-
- /* VCR (V.24 control)
- *
- * 07..04 serial IF select
- * 03 DTR
- * 02 RTS
- * 01 LL
- * 00 RL
- */
-
- switch(info->if_mode & MGSL_INTERFACE_MASK)
- {
- case MGSL_INTERFACE_RS232:
- val |= BIT5; /* 0010 */
- break;
- case MGSL_INTERFACE_V35:
- val |= BIT7 + BIT6 + BIT5; /* 1110 */
- break;
- case MGSL_INTERFACE_RS422:
- val |= BIT6; /* 0100 */
- break;
- }
-
- if (info->if_mode & MGSL_INTERFACE_MSB_FIRST)
- val |= BIT4;
- if (info->signals & SerialSignal_DTR)
- val |= BIT3;
- if (info->signals & SerialSignal_RTS)
- val |= BIT2;
- if (info->if_mode & MGSL_INTERFACE_LL)
- val |= BIT1;
- if (info->if_mode & MGSL_INTERFACE_RL)
- val |= BIT0;
- wr_reg8(info, VCR, val);
-}
-
-/*
- * set state of V24 control (output) signals
- */
-static void set_signals(struct slgt_info *info)
-{
- unsigned char val = rd_reg8(info, VCR);
- if (info->signals & SerialSignal_DTR)
- val |= BIT3;
- else
- val &= ~BIT3;
- if (info->signals & SerialSignal_RTS)
- val |= BIT2;
- else
- val &= ~BIT2;
- wr_reg8(info, VCR, val);
-}
-
-/*
- * free range of receive DMA buffers (i to last)
- */
-static void free_rbufs(struct slgt_info *info, unsigned int i, unsigned int last)
-{
- int done = 0;
-
- while(!done) {
- /* reset current buffer for reuse */
- info->rbufs[i].status = 0;
- set_desc_count(info->rbufs[i], info->rbuf_fill_level);
- if (i == last)
- done = 1;
- if (++i == info->rbuf_count)
- i = 0;
- }
- info->rbuf_current = i;
-}
-
-/*
- * mark all receive DMA buffers as free
- */
-static void reset_rbufs(struct slgt_info *info)
-{
- free_rbufs(info, 0, info->rbuf_count - 1);
- info->rbuf_fill_index = 0;
- info->rbuf_fill_count = 0;
-}
-
-/*
- * pass receive HDLC frame to upper layer
- *
- * return true if frame available, otherwise false
- */
-static bool rx_get_frame(struct slgt_info *info)
-{
- unsigned int start, end;
- unsigned short status;
- unsigned int framesize = 0;
- unsigned long flags;
- struct tty_struct *tty = info->port.tty;
- unsigned char addr_field = 0xff;
- unsigned int crc_size = 0;
-
- switch (info->params.crc_type & HDLC_CRC_MASK) {
- case HDLC_CRC_16_CCITT: crc_size = 2; break;
- case HDLC_CRC_32_CCITT: crc_size = 4; break;
- }
-
-check_again:
-
- framesize = 0;
- addr_field = 0xff;
- start = end = info->rbuf_current;
-
- for (;;) {
- if (!desc_complete(info->rbufs[end]))
- goto cleanup;
-
- if (framesize == 0 && info->params.addr_filter != 0xff)
- addr_field = info->rbufs[end].buf[0];
-
- framesize += desc_count(info->rbufs[end]);
-
- if (desc_eof(info->rbufs[end]))
- break;
-
- if (++end == info->rbuf_count)
- end = 0;
-
- if (end == info->rbuf_current) {
- if (info->rx_enabled){
- spin_lock_irqsave(&info->lock,flags);
- rx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
- goto cleanup;
- }
- }
-
- /* status
- *
- * 15 buffer complete
- * 14..06 reserved
- * 05..04 residue
- * 02 eof (end of frame)
- * 01 CRC error
- * 00 abort
- */
- status = desc_status(info->rbufs[end]);
-
- /* ignore CRC bit if not using CRC (bit is undefined) */
- if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE)
- status &= ~BIT1;
-
- if (framesize == 0 ||
- (addr_field != 0xff && addr_field != info->params.addr_filter)) {
- free_rbufs(info, start, end);
- goto check_again;
- }
-
- if (framesize < (2 + crc_size) || status & BIT0) {
- info->icount.rxshort++;
- framesize = 0;
- } else if (status & BIT1) {
- info->icount.rxcrc++;
- if (!(info->params.crc_type & HDLC_CRC_RETURN_EX))
- framesize = 0;
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (framesize == 0) {
- info->netdev->stats.rx_errors++;
- info->netdev->stats.rx_frame_errors++;
- }
-#endif
-
- DBGBH(("%s rx frame status=%04X size=%d\n",
- info->device_name, status, framesize));
- DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx");
-
- if (framesize) {
- if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) {
- framesize -= crc_size;
- crc_size = 0;
- }
-
- if (framesize > info->max_frame_size + crc_size)
- info->icount.rxlong++;
- else {
- /* copy dma buffer(s) to contiguous temp buffer */
- int copy_count = framesize;
- int i = start;
- unsigned char *p = info->tmp_rbuf;
- info->tmp_rbuf_count = framesize;
-
- info->icount.rxok++;
-
- while(copy_count) {
- int partial_count = min_t(int, copy_count, info->rbuf_fill_level);
- memcpy(p, info->rbufs[i].buf, partial_count);
- p += partial_count;
- copy_count -= partial_count;
- if (++i == info->rbuf_count)
- i = 0;
- }
-
- if (info->params.crc_type & HDLC_CRC_RETURN_EX) {
- *p = (status & BIT1) ? RX_CRC_ERROR : RX_OK;
- framesize++;
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_rx(info,info->tmp_rbuf, framesize);
- else
-#endif
- ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize);
- }
- }
- free_rbufs(info, start, end);
- return true;
-
-cleanup:
- return false;
-}
-
-/*
- * pass receive buffer (RAW synchronous mode) to tty layer
- * return true if buffer available, otherwise false
- */
-static bool rx_get_buf(struct slgt_info *info)
-{
- unsigned int i = info->rbuf_current;
- unsigned int count;
-
- if (!desc_complete(info->rbufs[i]))
- return false;
- count = desc_count(info->rbufs[i]);
- switch(info->params.mode) {
- case MGSL_MODE_MONOSYNC:
- case MGSL_MODE_BISYNC:
- case MGSL_MODE_XSYNC:
- /* ignore residue in byte synchronous modes */
- if (desc_residue(info->rbufs[i]))
- count--;
- break;
- }
- DBGDATA(info, info->rbufs[i].buf, count, "rx");
- DBGINFO(("rx_get_buf size=%d\n", count));
- if (count)
- ldisc_receive_buf(info->port.tty, info->rbufs[i].buf,
- info->flag_buf, count);
- free_rbufs(info, i, i);
- return true;
-}
-
-static void reset_tbufs(struct slgt_info *info)
-{
- unsigned int i;
- info->tbuf_current = 0;
- for (i=0 ; i < info->tbuf_count ; i++) {
- info->tbufs[i].status = 0;
- info->tbufs[i].count = 0;
- }
-}
-
-/*
- * return number of free transmit DMA buffers
- */
-static unsigned int free_tbuf_count(struct slgt_info *info)
-{
- unsigned int count = 0;
- unsigned int i = info->tbuf_current;
-
- do
- {
- if (desc_count(info->tbufs[i]))
- break; /* buffer in use */
- ++count;
- if (++i == info->tbuf_count)
- i=0;
- } while (i != info->tbuf_current);
-
- /* if tx DMA active, last zero count buffer is in use */
- if (count && (rd_reg32(info, TDCSR) & BIT0))
- --count;
-
- return count;
-}
-
-/*
- * return number of bytes in unsent transmit DMA buffers
- * and the serial controller tx FIFO
- */
-static unsigned int tbuf_bytes(struct slgt_info *info)
-{
- unsigned int total_count = 0;
- unsigned int i = info->tbuf_current;
- unsigned int reg_value;
- unsigned int count;
- unsigned int active_buf_count = 0;
-
- /*
- * Add descriptor counts for all tx DMA buffers.
- * If count is zero (cleared by DMA controller after read),
- * the buffer is complete or is actively being read from.
- *
- * Record buf_count of last buffer with zero count starting
- * from current ring position. buf_count is mirror
- * copy of count and is not cleared by serial controller.
- * If DMA controller is active, that buffer is actively
- * being read so add to total.
- */
- do {
- count = desc_count(info->tbufs[i]);
- if (count)
- total_count += count;
- else if (!total_count)
- active_buf_count = info->tbufs[i].buf_count;
- if (++i == info->tbuf_count)
- i = 0;
- } while (i != info->tbuf_current);
-
- /* read tx DMA status register */
- reg_value = rd_reg32(info, TDCSR);
-
- /* if tx DMA active, last zero count buffer is in use */
- if (reg_value & BIT0)
- total_count += active_buf_count;
-
- /* add tx FIFO count = reg_value[15..8] */
- total_count += (reg_value >> 8) & 0xff;
-
- /* if transmitter active add one byte for shift register */
- if (info->tx_active)
- total_count++;
-
- return total_count;
-}
-
-/*
- * load data into transmit DMA buffer ring and start transmitter if needed
- * return true if data accepted, otherwise false (buffers full)
- */
-static bool tx_load(struct slgt_info *info, const char *buf, unsigned int size)
-{
- unsigned short count;
- unsigned int i;
- struct slgt_desc *d;
-
- /* check required buffer space */
- if (DIV_ROUND_UP(size, DMABUFSIZE) > free_tbuf_count(info))
- return false;
-
- DBGDATA(info, buf, size, "tx");
-
- /*
- * copy data to one or more DMA buffers in circular ring
- * tbuf_start = first buffer for this data
- * tbuf_current = next free buffer
- *
- * Copy all data before making data visible to DMA controller by
- * setting descriptor count of the first buffer.
- * This prevents an active DMA controller from reading the first DMA
- * buffers of a frame and stopping before the final buffers are filled.
- */
-
- info->tbuf_start = i = info->tbuf_current;
-
- while (size) {
- d = &info->tbufs[i];
-
- count = (unsigned short)((size > DMABUFSIZE) ? DMABUFSIZE : size);
- memcpy(d->buf, buf, count);
-
- size -= count;
- buf += count;
-
- /*
- * set EOF bit for last buffer of HDLC frame or
- * for every buffer in raw mode
- */
- if ((!size && info->params.mode == MGSL_MODE_HDLC) ||
- info->params.mode == MGSL_MODE_RAW)
- set_desc_eof(*d, 1);
- else
- set_desc_eof(*d, 0);
-
- /* set descriptor count for all but first buffer */
- if (i != info->tbuf_start)
- set_desc_count(*d, count);
- d->buf_count = count;
-
- if (++i == info->tbuf_count)
- i = 0;
- }
-
- info->tbuf_current = i;
-
- /* set first buffer count to make new data visible to DMA controller */
- d = &info->tbufs[info->tbuf_start];
- set_desc_count(*d, d->buf_count);
-
- /* start transmitter if needed and update transmit timeout */
- if (!info->tx_active)
- tx_start(info);
- update_tx_timer(info);
-
- return true;
-}
-
-static int register_test(struct slgt_info *info)
-{
- static unsigned short patterns[] =
- {0x0000, 0xffff, 0xaaaa, 0x5555, 0x6969, 0x9696};
- static unsigned int count = ARRAY_SIZE(patterns);
- unsigned int i;
- int rc = 0;
-
- for (i=0 ; i < count ; i++) {
- wr_reg16(info, TIR, patterns[i]);
- wr_reg16(info, BDR, patterns[(i+1)%count]);
- if ((rd_reg16(info, TIR) != patterns[i]) ||
- (rd_reg16(info, BDR) != patterns[(i+1)%count])) {
- rc = -ENODEV;
- break;
- }
- }
- info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0;
- info->init_error = rc ? 0 : DiagStatus_AddressFailure;
- return rc;
-}
-
-static int irq_test(struct slgt_info *info)
-{
- unsigned long timeout;
- unsigned long flags;
- struct tty_struct *oldtty = info->port.tty;
- u32 speed = info->params.data_rate;
-
- info->params.data_rate = 921600;
- info->port.tty = NULL;
-
- spin_lock_irqsave(&info->lock, flags);
- async_mode(info);
- slgt_irq_on(info, IRQ_TXIDLE);
-
- /* enable transmitter */
- wr_reg16(info, TCR,
- (unsigned short)(rd_reg16(info, TCR) | BIT1));
-
- /* write one byte and wait for tx idle */
- wr_reg16(info, TDR, 0);
-
- /* assume failure */
- info->init_error = DiagStatus_IrqFailure;
- info->irq_occurred = false;
-
- spin_unlock_irqrestore(&info->lock, flags);
-
- timeout=100;
- while(timeout-- && !info->irq_occurred)
- msleep_interruptible(10);
-
- spin_lock_irqsave(&info->lock,flags);
- reset_port(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- info->params.data_rate = speed;
- info->port.tty = oldtty;
-
- info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure;
- return info->irq_occurred ? 0 : -ENODEV;
-}
-
-static int loopback_test_rx(struct slgt_info *info)
-{
- unsigned char *src, *dest;
- int count;
-
- if (desc_complete(info->rbufs[0])) {
- count = desc_count(info->rbufs[0]);
- src = info->rbufs[0].buf;
- dest = info->tmp_rbuf;
-
- for( ; count ; count-=2, src+=2) {
- /* src=data byte (src+1)=status byte */
- if (!(*(src+1) & (BIT9 + BIT8))) {
- *dest = *src;
- dest++;
- info->tmp_rbuf_count++;
- }
- }
- DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx");
- return 1;
- }
- return 0;
-}
-
-static int loopback_test(struct slgt_info *info)
-{
-#define TESTFRAMESIZE 20
-
- unsigned long timeout;
- u16 count = TESTFRAMESIZE;
- unsigned char buf[TESTFRAMESIZE];
- int rc = -ENODEV;
- unsigned long flags;
-
- struct tty_struct *oldtty = info->port.tty;
- MGSL_PARAMS params;
-
- memcpy(&params, &info->params, sizeof(params));
-
- info->params.mode = MGSL_MODE_ASYNC;
- info->params.data_rate = 921600;
- info->params.loopback = 1;
- info->port.tty = NULL;
-
- /* build and send transmit frame */
- for (count = 0; count < TESTFRAMESIZE; ++count)
- buf[count] = (unsigned char)count;
-
- info->tmp_rbuf_count = 0;
- memset(info->tmp_rbuf, 0, TESTFRAMESIZE);
-
- /* program hardware for HDLC and enabled receiver */
- spin_lock_irqsave(&info->lock,flags);
- async_mode(info);
- rx_start(info);
- tx_load(info, buf, count);
- spin_unlock_irqrestore(&info->lock, flags);
-
- /* wait for receive complete */
- for (timeout = 100; timeout; --timeout) {
- msleep_interruptible(10);
- if (loopback_test_rx(info)) {
- rc = 0;
- break;
- }
- }
-
- /* verify received frame length and contents */
- if (!rc && (info->tmp_rbuf_count != count ||
- memcmp(buf, info->tmp_rbuf, count))) {
- rc = -ENODEV;
- }
-
- spin_lock_irqsave(&info->lock,flags);
- reset_adapter(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- memcpy(&info->params, &params, sizeof(info->params));
- info->port.tty = oldtty;
-
- info->init_error = rc ? DiagStatus_DmaFailure : 0;
- return rc;
-}
-
-static int adapter_test(struct slgt_info *info)
-{
- DBGINFO(("testing %s\n", info->device_name));
- if (register_test(info) < 0) {
- printk("register test failure %s addr=%08X\n",
- info->device_name, info->phys_reg_addr);
- } else if (irq_test(info) < 0) {
- printk("IRQ test failure %s IRQ=%d\n",
- info->device_name, info->irq_level);
- } else if (loopback_test(info) < 0) {
- printk("loopback test failure %s\n", info->device_name);
- }
- return info->init_error;
-}
-
-/*
- * transmit timeout handler
- */
-static void tx_timeout(unsigned long context)
-{
- struct slgt_info *info = (struct slgt_info*)context;
- unsigned long flags;
-
- DBGINFO(("%s tx_timeout\n", info->device_name));
- if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) {
- info->icount.txtimeout++;
- }
- spin_lock_irqsave(&info->lock,flags);
- tx_stop(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_tx_done(info);
- else
-#endif
- bh_transmit(info);
-}
-
-/*
- * receive buffer polling timer
- */
-static void rx_timeout(unsigned long context)
-{
- struct slgt_info *info = (struct slgt_info*)context;
- unsigned long flags;
-
- DBGINFO(("%s rx_timeout\n", info->device_name));
- spin_lock_irqsave(&info->lock, flags);
- info->pending_bh |= BH_RECEIVE;
- spin_unlock_irqrestore(&info->lock, flags);
- bh_handler(&info->task);
-}
-
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
deleted file mode 100644
index 2f9eb4b0dec..00000000000
--- a/drivers/char/synclinkmp.c
+++ /dev/null
@@ -1,5601 +0,0 @@
-/*
- * $Id: synclinkmp.c,v 4.38 2005/07/15 13:29:44 paulkf Exp $
- *
- * Device driver for Microgate SyncLink Multiport
- * high speed multiprotocol serial adapter.
- *
- * written by Paul Fulghum for Microgate Corporation
- * paulkf@microgate.com
- *
- * Microgate and SyncLink are trademarks of Microgate Corporation
- *
- * Derived from serial.c written by Theodore Ts'o and Linus Torvalds
- * This code is released under the GNU General Public License (GPL)
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define VERSION(ver,rel,seq) (((ver)<<16) | ((rel)<<8) | (seq))
-#if defined(__i386__)
-# define BREAKPOINT() asm(" int $3");
-#else
-# define BREAKPOINT() { }
-#endif
-
-#define MAX_DEVICES 12
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/serial.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/ioport.h>
-#include <linux/mm.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/netdevice.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/ioctl.h>
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/dma.h>
-#include <linux/bitops.h>
-#include <asm/types.h>
-#include <linux/termios.h>
-#include <linux/workqueue.h>
-#include <linux/hdlc.h>
-#include <linux/synclink.h>
-
-#if defined(CONFIG_HDLC) || (defined(CONFIG_HDLC_MODULE) && defined(CONFIG_SYNCLINKMP_MODULE))
-#define SYNCLINK_GENERIC_HDLC 1
-#else
-#define SYNCLINK_GENERIC_HDLC 0
-#endif
-
-#define GET_USER(error,value,addr) error = get_user(value,addr)
-#define COPY_FROM_USER(error,dest,src,size) error = copy_from_user(dest,src,size) ? -EFAULT : 0
-#define PUT_USER(error,value,addr) error = put_user(value,addr)
-#define COPY_TO_USER(error,dest,src,size) error = copy_to_user(dest,src,size) ? -EFAULT : 0
-
-#include <asm/uaccess.h>
-
-static MGSL_PARAMS default_params = {
- MGSL_MODE_HDLC, /* unsigned long mode */
- 0, /* unsigned char loopback; */
- HDLC_FLAG_UNDERRUN_ABORT15, /* unsigned short flags; */
- HDLC_ENCODING_NRZI_SPACE, /* unsigned char encoding; */
- 0, /* unsigned long clock_speed; */
- 0xff, /* unsigned char addr_filter; */
- HDLC_CRC_16_CCITT, /* unsigned short crc_type; */
- HDLC_PREAMBLE_LENGTH_8BITS, /* unsigned char preamble_length; */
- HDLC_PREAMBLE_PATTERN_NONE, /* unsigned char preamble; */
- 9600, /* unsigned long data_rate; */
- 8, /* unsigned char data_bits; */
- 1, /* unsigned char stop_bits; */
- ASYNC_PARITY_NONE /* unsigned char parity; */
-};
-
-/* size in bytes of DMA data buffers */
-#define SCABUFSIZE 1024
-#define SCA_MEM_SIZE 0x40000
-#define SCA_BASE_SIZE 512
-#define SCA_REG_SIZE 16
-#define SCA_MAX_PORTS 4
-#define SCAMAXDESC 128
-
-#define BUFFERLISTSIZE 4096
-
-/* SCA-I style DMA buffer descriptor */
-typedef struct _SCADESC
-{
- u16 next; /* lower l6 bits of next descriptor addr */
- u16 buf_ptr; /* lower 16 bits of buffer addr */
- u8 buf_base; /* upper 8 bits of buffer addr */
- u8 pad1;
- u16 length; /* length of buffer */
- u8 status; /* status of buffer */
- u8 pad2;
-} SCADESC, *PSCADESC;
-
-typedef struct _SCADESC_EX
-{
- /* device driver bookkeeping section */
- char *virt_addr; /* virtual address of data buffer */
- u16 phys_entry; /* lower 16-bits of physical address of this descriptor */
-} SCADESC_EX, *PSCADESC_EX;
-
-/* The queue of BH actions to be performed */
-
-#define BH_RECEIVE 1
-#define BH_TRANSMIT 2
-#define BH_STATUS 4
-
-#define IO_PIN_SHUTDOWN_LIMIT 100
-
-struct _input_signal_events {
- int ri_up;
- int ri_down;
- int dsr_up;
- int dsr_down;
- int dcd_up;
- int dcd_down;
- int cts_up;
- int cts_down;
-};
-
-/*
- * Device instance data structure
- */
-typedef struct _synclinkmp_info {
- void *if_ptr; /* General purpose pointer (used by SPPP) */
- int magic;
- struct tty_port port;
- int line;
- unsigned short close_delay;
- unsigned short closing_wait; /* time to wait before closing */
-
- struct mgsl_icount icount;
-
- int timeout;
- int x_char; /* xon/xoff character */
- u16 read_status_mask1; /* break detection (SR1 indications) */
- u16 read_status_mask2; /* parity/framing/overun (SR2 indications) */
- unsigned char ignore_status_mask1; /* break detection (SR1 indications) */
- unsigned char ignore_status_mask2; /* parity/framing/overun (SR2 indications) */
- unsigned char *tx_buf;
- int tx_put;
- int tx_get;
- int tx_count;
-
- wait_queue_head_t status_event_wait_q;
- wait_queue_head_t event_wait_q;
- struct timer_list tx_timer; /* HDLC transmit timeout timer */
- struct _synclinkmp_info *next_device; /* device list link */
- struct timer_list status_timer; /* input signal status check timer */
-
- spinlock_t lock; /* spinlock for synchronizing with ISR */
- struct work_struct task; /* task structure for scheduling bh */
-
- u32 max_frame_size; /* as set by device config */
-
- u32 pending_bh;
-
- bool bh_running; /* Protection from multiple */
- int isr_overflow;
- bool bh_requested;
-
- int dcd_chkcount; /* check counts to prevent */
- int cts_chkcount; /* too many IRQs if a signal */
- int dsr_chkcount; /* is floating */
- int ri_chkcount;
-
- char *buffer_list; /* virtual address of Rx & Tx buffer lists */
- unsigned long buffer_list_phys;
-
- unsigned int rx_buf_count; /* count of total allocated Rx buffers */
- SCADESC *rx_buf_list; /* list of receive buffer entries */
- SCADESC_EX rx_buf_list_ex[SCAMAXDESC]; /* list of receive buffer entries */
- unsigned int current_rx_buf;
-
- unsigned int tx_buf_count; /* count of total allocated Tx buffers */
- SCADESC *tx_buf_list; /* list of transmit buffer entries */
- SCADESC_EX tx_buf_list_ex[SCAMAXDESC]; /* list of transmit buffer entries */
- unsigned int last_tx_buf;
-
- unsigned char *tmp_rx_buf;
- unsigned int tmp_rx_buf_count;
-
- bool rx_enabled;
- bool rx_overflow;
-
- bool tx_enabled;
- bool tx_active;
- u32 idle_mode;
-
- unsigned char ie0_value;
- unsigned char ie1_value;
- unsigned char ie2_value;
- unsigned char ctrlreg_value;
- unsigned char old_signals;
-
- char device_name[25]; /* device instance name */
-
- int port_count;
- int adapter_num;
- int port_num;
-
- struct _synclinkmp_info *port_array[SCA_MAX_PORTS];
-
- unsigned int bus_type; /* expansion bus type (ISA,EISA,PCI) */
-
- unsigned int irq_level; /* interrupt level */
- unsigned long irq_flags;
- bool irq_requested; /* true if IRQ requested */
-
- MGSL_PARAMS params; /* communications parameters */
-
- unsigned char serial_signals; /* current serial signal states */
-
- bool irq_occurred; /* for diagnostics use */
- unsigned int init_error; /* Initialization startup error */
-
- u32 last_mem_alloc;
- unsigned char* memory_base; /* shared memory address (PCI only) */
- u32 phys_memory_base;
- int shared_mem_requested;
-
- unsigned char* sca_base; /* HD64570 SCA Memory address */
- u32 phys_sca_base;
- u32 sca_offset;
- bool sca_base_requested;
-
- unsigned char* lcr_base; /* local config registers (PCI only) */
- u32 phys_lcr_base;
- u32 lcr_offset;
- int lcr_mem_requested;
-
- unsigned char* statctrl_base; /* status/control register memory */
- u32 phys_statctrl_base;
- u32 statctrl_offset;
- bool sca_statctrl_requested;
-
- u32 misc_ctrl_value;
- char flag_buf[MAX_ASYNC_BUFFER_SIZE];
- char char_buf[MAX_ASYNC_BUFFER_SIZE];
- bool drop_rts_on_tx_done;
-
- struct _input_signal_events input_signal_events;
-
- /* SPPP/Cisco HDLC device parts */
- int netcount;
- spinlock_t netlock;
-
-#if SYNCLINK_GENERIC_HDLC
- struct net_device *netdev;
-#endif
-
-} SLMP_INFO;
-
-#define MGSL_MAGIC 0x5401
-
-/*
- * define serial signal status change macros
- */
-#define MISCSTATUS_DCD_LATCHED (SerialSignal_DCD<<8) /* indicates change in DCD */
-#define MISCSTATUS_RI_LATCHED (SerialSignal_RI<<8) /* indicates change in RI */
-#define MISCSTATUS_CTS_LATCHED (SerialSignal_CTS<<8) /* indicates change in CTS */
-#define MISCSTATUS_DSR_LATCHED (SerialSignal_DSR<<8) /* change in DSR */
-
-/* Common Register macros */
-#define LPR 0x00
-#define PABR0 0x02
-#define PABR1 0x03
-#define WCRL 0x04
-#define WCRM 0x05
-#define WCRH 0x06
-#define DPCR 0x08
-#define DMER 0x09
-#define ISR0 0x10
-#define ISR1 0x11
-#define ISR2 0x12
-#define IER0 0x14
-#define IER1 0x15
-#define IER2 0x16
-#define ITCR 0x18
-#define INTVR 0x1a
-#define IMVR 0x1c
-
-/* MSCI Register macros */
-#define TRB 0x20
-#define TRBL 0x20
-#define TRBH 0x21
-#define SR0 0x22
-#define SR1 0x23
-#define SR2 0x24
-#define SR3 0x25
-#define FST 0x26
-#define IE0 0x28
-#define IE1 0x29
-#define IE2 0x2a
-#define FIE 0x2b
-#define CMD 0x2c
-#define MD0 0x2e
-#define MD1 0x2f
-#define MD2 0x30
-#define CTL 0x31
-#define SA0 0x32
-#define SA1 0x33
-#define IDL 0x34
-#define TMC 0x35
-#define RXS 0x36
-#define TXS 0x37
-#define TRC0 0x38
-#define TRC1 0x39
-#define RRC 0x3a
-#define CST0 0x3c
-#define CST1 0x3d
-
-/* Timer Register Macros */
-#define TCNT 0x60
-#define TCNTL 0x60
-#define TCNTH 0x61
-#define TCONR 0x62
-#define TCONRL 0x62
-#define TCONRH 0x63
-#define TMCS 0x64
-#define TEPR 0x65
-
-/* DMA Controller Register macros */
-#define DARL 0x80
-#define DARH 0x81
-#define DARB 0x82
-#define BAR 0x80
-#define BARL 0x80
-#define BARH 0x81
-#define BARB 0x82
-#define SAR 0x84
-#define SARL 0x84
-#define SARH 0x85
-#define SARB 0x86
-#define CPB 0x86
-#define CDA 0x88
-#define CDAL 0x88
-#define CDAH 0x89
-#define EDA 0x8a
-#define EDAL 0x8a
-#define EDAH 0x8b
-#define BFL 0x8c
-#define BFLL 0x8c
-#define BFLH 0x8d
-#define BCR 0x8e
-#define BCRL 0x8e
-#define BCRH 0x8f
-#define DSR 0x90
-#define DMR 0x91
-#define FCT 0x93
-#define DIR 0x94
-#define DCMD 0x95
-
-/* combine with timer or DMA register address */
-#define TIMER0 0x00
-#define TIMER1 0x08
-#define TIMER2 0x10
-#define TIMER3 0x18
-#define RXDMA 0x00
-#define TXDMA 0x20
-
-/* SCA Command Codes */
-#define NOOP 0x00
-#define TXRESET 0x01
-#define TXENABLE 0x02
-#define TXDISABLE 0x03
-#define TXCRCINIT 0x04
-#define TXCRCEXCL 0x05
-#define TXEOM 0x06
-#define TXABORT 0x07
-#define MPON 0x08
-#define TXBUFCLR 0x09
-#define RXRESET 0x11
-#define RXENABLE 0x12
-#define RXDISABLE 0x13
-#define RXCRCINIT 0x14
-#define RXREJECT 0x15
-#define SEARCHMP 0x16
-#define RXCRCEXCL 0x17
-#define RXCRCCALC 0x18
-#define CHRESET 0x21
-#define HUNT 0x31
-
-/* DMA command codes */
-#define SWABORT 0x01
-#define FEICLEAR 0x02
-
-/* IE0 */
-#define TXINTE BIT7
-#define RXINTE BIT6
-#define TXRDYE BIT1
-#define RXRDYE BIT0
-
-/* IE1 & SR1 */
-#define UDRN BIT7
-#define IDLE BIT6
-#define SYNCD BIT4
-#define FLGD BIT4
-#define CCTS BIT3
-#define CDCD BIT2
-#define BRKD BIT1
-#define ABTD BIT1
-#define GAPD BIT1
-#define BRKE BIT0
-#define IDLD BIT0
-
-/* IE2 & SR2 */
-#define EOM BIT7
-#define PMP BIT6
-#define SHRT BIT6
-#define PE BIT5
-#define ABT BIT5
-#define FRME BIT4
-#define RBIT BIT4
-#define OVRN BIT3
-#define CRCE BIT2
-
-
-/*
- * Global linked list of SyncLink devices
- */
-static SLMP_INFO *synclinkmp_device_list = NULL;
-static int synclinkmp_adapter_count = -1;
-static int synclinkmp_device_count = 0;
-
-/*
- * Set this param to non-zero to load eax with the
- * .text section address and breakpoint on module load.
- * This is useful for use with gdb and add-symbol-file command.
- */
-static int break_on_load = 0;
-
-/*
- * Driver major number, defaults to zero to get auto
- * assigned major number. May be forced as module parameter.
- */
-static int ttymajor = 0;
-
-/*
- * Array of user specified options for ISA adapters.
- */
-static int debug_level = 0;
-static int maxframe[MAX_DEVICES] = {0,};
-
-module_param(break_on_load, bool, 0);
-module_param(ttymajor, int, 0);
-module_param(debug_level, int, 0);
-module_param_array(maxframe, int, NULL, 0);
-
-static char *driver_name = "SyncLink MultiPort driver";
-static char *driver_version = "$Revision: 4.38 $";
-
-static int synclinkmp_init_one(struct pci_dev *dev,const struct pci_device_id *ent);
-static void synclinkmp_remove_one(struct pci_dev *dev);
-
-static struct pci_device_id synclinkmp_pci_tbl[] = {
- { PCI_VENDOR_ID_MICROGATE, PCI_DEVICE_ID_MICROGATE_SCA, PCI_ANY_ID, PCI_ANY_ID, },
- { 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE(pci, synclinkmp_pci_tbl);
-
-MODULE_LICENSE("GPL");
-
-static struct pci_driver synclinkmp_pci_driver = {
- .name = "synclinkmp",
- .id_table = synclinkmp_pci_tbl,
- .probe = synclinkmp_init_one,
- .remove = __devexit_p(synclinkmp_remove_one),
-};
-
-
-static struct tty_driver *serial_driver;
-
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-
-/* tty callbacks */
-
-static int open(struct tty_struct *tty, struct file * filp);
-static void close(struct tty_struct *tty, struct file * filp);
-static void hangup(struct tty_struct *tty);
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios);
-
-static int write(struct tty_struct *tty, const unsigned char *buf, int count);
-static int put_char(struct tty_struct *tty, unsigned char ch);
-static void send_xchar(struct tty_struct *tty, char ch);
-static void wait_until_sent(struct tty_struct *tty, int timeout);
-static int write_room(struct tty_struct *tty);
-static void flush_chars(struct tty_struct *tty);
-static void flush_buffer(struct tty_struct *tty);
-static void tx_hold(struct tty_struct *tty);
-static void tx_release(struct tty_struct *tty);
-
-static int ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
-static int chars_in_buffer(struct tty_struct *tty);
-static void throttle(struct tty_struct * tty);
-static void unthrottle(struct tty_struct * tty);
-static int set_break(struct tty_struct *tty, int break_state);
-
-#if SYNCLINK_GENERIC_HDLC
-#define dev_to_port(D) (dev_to_hdlc(D)->priv)
-static void hdlcdev_tx_done(SLMP_INFO *info);
-static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size);
-static int hdlcdev_init(SLMP_INFO *info);
-static void hdlcdev_exit(SLMP_INFO *info);
-#endif
-
-/* ioctl handlers */
-
-static int get_stats(SLMP_INFO *info, struct mgsl_icount __user *user_icount);
-static int get_params(SLMP_INFO *info, MGSL_PARAMS __user *params);
-static int set_params(SLMP_INFO *info, MGSL_PARAMS __user *params);
-static int get_txidle(SLMP_INFO *info, int __user *idle_mode);
-static int set_txidle(SLMP_INFO *info, int idle_mode);
-static int tx_enable(SLMP_INFO *info, int enable);
-static int tx_abort(SLMP_INFO *info);
-static int rx_enable(SLMP_INFO *info, int enable);
-static int modem_input_wait(SLMP_INFO *info,int arg);
-static int wait_mgsl_event(SLMP_INFO *info, int __user *mask_ptr);
-static int tiocmget(struct tty_struct *tty, struct file *file);
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear);
-static int set_break(struct tty_struct *tty, int break_state);
-
-static void add_device(SLMP_INFO *info);
-static void device_init(int adapter_num, struct pci_dev *pdev);
-static int claim_resources(SLMP_INFO *info);
-static void release_resources(SLMP_INFO *info);
-
-static int startup(SLMP_INFO *info);
-static int block_til_ready(struct tty_struct *tty, struct file * filp,SLMP_INFO *info);
-static int carrier_raised(struct tty_port *port);
-static void shutdown(SLMP_INFO *info);
-static void program_hw(SLMP_INFO *info);
-static void change_params(SLMP_INFO *info);
-
-static bool init_adapter(SLMP_INFO *info);
-static bool register_test(SLMP_INFO *info);
-static bool irq_test(SLMP_INFO *info);
-static bool loopback_test(SLMP_INFO *info);
-static int adapter_test(SLMP_INFO *info);
-static bool memory_test(SLMP_INFO *info);
-
-static void reset_adapter(SLMP_INFO *info);
-static void reset_port(SLMP_INFO *info);
-static void async_mode(SLMP_INFO *info);
-static void hdlc_mode(SLMP_INFO *info);
-
-static void rx_stop(SLMP_INFO *info);
-static void rx_start(SLMP_INFO *info);
-static void rx_reset_buffers(SLMP_INFO *info);
-static void rx_free_frame_buffers(SLMP_INFO *info, unsigned int first, unsigned int last);
-static bool rx_get_frame(SLMP_INFO *info);
-
-static void tx_start(SLMP_INFO *info);
-static void tx_stop(SLMP_INFO *info);
-static void tx_load_fifo(SLMP_INFO *info);
-static void tx_set_idle(SLMP_INFO *info);
-static void tx_load_dma_buffer(SLMP_INFO *info, const char *buf, unsigned int count);
-
-static void get_signals(SLMP_INFO *info);
-static void set_signals(SLMP_INFO *info);
-static void enable_loopback(SLMP_INFO *info, int enable);
-static void set_rate(SLMP_INFO *info, u32 data_rate);
-
-static int bh_action(SLMP_INFO *info);
-static void bh_handler(struct work_struct *work);
-static void bh_receive(SLMP_INFO *info);
-static void bh_transmit(SLMP_INFO *info);
-static void bh_status(SLMP_INFO *info);
-static void isr_timer(SLMP_INFO *info);
-static void isr_rxint(SLMP_INFO *info);
-static void isr_rxrdy(SLMP_INFO *info);
-static void isr_txint(SLMP_INFO *info);
-static void isr_txrdy(SLMP_INFO *info);
-static void isr_rxdmaok(SLMP_INFO *info);
-static void isr_rxdmaerror(SLMP_INFO *info);
-static void isr_txdmaok(SLMP_INFO *info);
-static void isr_txdmaerror(SLMP_INFO *info);
-static void isr_io_pin(SLMP_INFO *info, u16 status);
-
-static int alloc_dma_bufs(SLMP_INFO *info);
-static void free_dma_bufs(SLMP_INFO *info);
-static int alloc_buf_list(SLMP_INFO *info);
-static int alloc_frame_bufs(SLMP_INFO *info, SCADESC *list, SCADESC_EX *list_ex,int count);
-static int alloc_tmp_rx_buf(SLMP_INFO *info);
-static void free_tmp_rx_buf(SLMP_INFO *info);
-
-static void load_pci_memory(SLMP_INFO *info, char* dest, const char* src, unsigned short count);
-static void trace_block(SLMP_INFO *info, const char* data, int count, int xmit);
-static void tx_timeout(unsigned long context);
-static void status_timeout(unsigned long context);
-
-static unsigned char read_reg(SLMP_INFO *info, unsigned char addr);
-static void write_reg(SLMP_INFO *info, unsigned char addr, unsigned char val);
-static u16 read_reg16(SLMP_INFO *info, unsigned char addr);
-static void write_reg16(SLMP_INFO *info, unsigned char addr, u16 val);
-static unsigned char read_status_reg(SLMP_INFO * info);
-static void write_control_reg(SLMP_INFO * info);
-
-
-static unsigned char rx_active_fifo_level = 16; // rx request FIFO activation level in bytes
-static unsigned char tx_active_fifo_level = 16; // tx request FIFO activation level in bytes
-static unsigned char tx_negate_fifo_level = 32; // tx request FIFO negation level in bytes
-
-static u32 misc_ctrl_value = 0x007e4040;
-static u32 lcr1_brdr_value = 0x00800028;
-
-static u32 read_ahead_count = 8;
-
-/* DPCR, DMA Priority Control
- *
- * 07..05 Not used, must be 0
- * 04 BRC, bus release condition: 0=all transfers complete
- * 1=release after 1 xfer on all channels
- * 03 CCC, channel change condition: 0=every cycle
- * 1=after each channel completes all xfers
- * 02..00 PR<2..0>, priority 100=round robin
- *
- * 00000100 = 0x00
- */
-static unsigned char dma_priority = 0x04;
-
-// Number of bytes that can be written to shared RAM
-// in a single write operation
-static u32 sca_pci_load_interval = 64;
-
-/*
- * 1st function defined in .text section. Calling this function in
- * init_module() followed by a breakpoint allows a remote debugger
- * (gdb) to get the .text address for the add-symbol-file command.
- * This allows remote debugging of dynamically loadable modules.
- */
-static void* synclinkmp_get_text_ptr(void);
-static void* synclinkmp_get_text_ptr(void) {return synclinkmp_get_text_ptr;}
-
-static inline int sanity_check(SLMP_INFO *info,
- char *name, const char *routine)
-{
-#ifdef SANITY_CHECK
- static const char *badmagic =
- "Warning: bad magic number for synclinkmp_struct (%s) in %s\n";
- static const char *badinfo =
- "Warning: null synclinkmp_struct for (%s) in %s\n";
-
- if (!info) {
- printk(badinfo, name, routine);
- return 1;
- }
- if (info->magic != MGSL_MAGIC) {
- printk(badmagic, name, routine);
- return 1;
- }
-#else
- if (!info)
- return 1;
-#endif
- return 0;
-}
-
-/**
- * line discipline callback wrappers
- *
- * The wrappers maintain line discipline references
- * while calling into the line discipline.
- *
- * ldisc_receive_buf - pass receive data to line discipline
- */
-
-static void ldisc_receive_buf(struct tty_struct *tty,
- const __u8 *data, char *flags, int count)
-{
- struct tty_ldisc *ld;
- if (!tty)
- return;
- ld = tty_ldisc_ref(tty);
- if (ld) {
- if (ld->ops->receive_buf)
- ld->ops->receive_buf(tty, data, flags, count);
- tty_ldisc_deref(ld);
- }
-}
-
-/* tty callbacks */
-
-/* Called when a port is opened. Init and enable port.
- */
-static int open(struct tty_struct *tty, struct file *filp)
-{
- SLMP_INFO *info;
- int retval, line;
- unsigned long flags;
-
- line = tty->index;
- if ((line < 0) || (line >= synclinkmp_device_count)) {
- printk("%s(%d): open with invalid line #%d.\n",
- __FILE__,__LINE__,line);
- return -ENODEV;
- }
-
- info = synclinkmp_device_list;
- while(info && info->line != line)
- info = info->next_device;
- if (sanity_check(info, tty->name, "open"))
- return -ENODEV;
- if ( info->init_error ) {
- printk("%s(%d):%s device is not allocated, init error=%d\n",
- __FILE__,__LINE__,info->device_name,info->init_error);
- return -ENODEV;
- }
-
- tty->driver_data = info;
- info->port.tty = tty;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s open(), old ref count = %d\n",
- __FILE__,__LINE__,tty->driver->name, info->port.count);
-
- /* If port is closing, signal caller to try again */
- if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
- if (info->port.flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->port.close_wait);
- retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS);
- goto cleanup;
- }
-
- info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-
- spin_lock_irqsave(&info->netlock, flags);
- if (info->netcount) {
- retval = -EBUSY;
- spin_unlock_irqrestore(&info->netlock, flags);
- goto cleanup;
- }
- info->port.count++;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- if (info->port.count == 1) {
- /* 1st open on this device, init hardware */
- retval = startup(info);
- if (retval < 0)
- goto cleanup;
- }
-
- retval = block_til_ready(tty, filp, info);
- if (retval) {
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s block_til_ready() returned %d\n",
- __FILE__,__LINE__, info->device_name, retval);
- goto cleanup;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s open() success\n",
- __FILE__,__LINE__, info->device_name);
- retval = 0;
-
-cleanup:
- if (retval) {
- if (tty->count == 1)
- info->port.tty = NULL; /* tty layer will release tty struct */
- if(info->port.count)
- info->port.count--;
- }
-
- return retval;
-}
-
-/* Called when port is closed. Wait for remaining data to be
- * sent. Disable port and free resources.
- */
-static void close(struct tty_struct *tty, struct file *filp)
-{
- SLMP_INFO * info = tty->driver_data;
-
- if (sanity_check(info, tty->name, "close"))
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s close() entry, count=%d\n",
- __FILE__,__LINE__, info->device_name, info->port.count);
-
- if (tty_port_close_start(&info->port, tty, filp) == 0)
- goto cleanup;
-
- mutex_lock(&info->port.mutex);
- if (info->port.flags & ASYNC_INITIALIZED)
- wait_until_sent(tty, info->timeout);
-
- flush_buffer(tty);
- tty_ldisc_flush(tty);
- shutdown(info);
- mutex_unlock(&info->port.mutex);
-
- tty_port_close_end(&info->port, tty);
- info->port.tty = NULL;
-cleanup:
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
- tty->driver->name, info->port.count);
-}
-
-/* Called by tty_hangup() when a hangup is signaled.
- * This is the same as closing all open descriptors for the port.
- */
-static void hangup(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s hangup()\n",
- __FILE__,__LINE__, info->device_name );
-
- if (sanity_check(info, tty->name, "hangup"))
- return;
-
- mutex_lock(&info->port.mutex);
- flush_buffer(tty);
- shutdown(info);
-
- spin_lock_irqsave(&info->port.lock, flags);
- info->port.count = 0;
- info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
- info->port.tty = NULL;
- spin_unlock_irqrestore(&info->port.lock, flags);
- mutex_unlock(&info->port.mutex);
-
- wake_up_interruptible(&info->port.open_wait);
-}
-
-/* Set new termios settings
- */
-static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s set_termios()\n", __FILE__,__LINE__,
- tty->driver->name );
-
- change_params(info);
-
- /* Handle transition to B0 status */
- if (old_termios->c_cflag & CBAUD &&
- !(tty->termios->c_cflag & CBAUD)) {
- info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-
- /* Handle transition away from B0 status */
- if (!(old_termios->c_cflag & CBAUD) &&
- tty->termios->c_cflag & CBAUD) {
- info->serial_signals |= SerialSignal_DTR;
- if (!(tty->termios->c_cflag & CRTSCTS) ||
- !test_bit(TTY_THROTTLED, &tty->flags)) {
- info->serial_signals |= SerialSignal_RTS;
- }
- spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-
- /* Handle turning off CRTSCTS */
- if (old_termios->c_cflag & CRTSCTS &&
- !(tty->termios->c_cflag & CRTSCTS)) {
- tty->hw_stopped = 0;
- tx_release(tty);
- }
-}
-
-/* Send a block of data
- *
- * Arguments:
- *
- * tty pointer to tty information structure
- * buf pointer to buffer containing send data
- * count size of send data in bytes
- *
- * Return Value: number of characters written
- */
-static int write(struct tty_struct *tty,
- const unsigned char *buf, int count)
-{
- int c, ret = 0;
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s write() count=%d\n",
- __FILE__,__LINE__,info->device_name,count);
-
- if (sanity_check(info, tty->name, "write"))
- goto cleanup;
-
- if (!info->tx_buf)
- goto cleanup;
-
- if (info->params.mode == MGSL_MODE_HDLC) {
- if (count > info->max_frame_size) {
- ret = -EIO;
- goto cleanup;
- }
- if (info->tx_active)
- goto cleanup;
- if (info->tx_count) {
- /* send accumulated data from send_char() calls */
- /* as frame and wait before accepting more data. */
- tx_load_dma_buffer(info, info->tx_buf, info->tx_count);
- goto start;
- }
- ret = info->tx_count = count;
- tx_load_dma_buffer(info, buf, count);
- goto start;
- }
-
- for (;;) {
- c = min_t(int, count,
- min(info->max_frame_size - info->tx_count - 1,
- info->max_frame_size - info->tx_put));
- if (c <= 0)
- break;
-
- memcpy(info->tx_buf + info->tx_put, buf, c);
-
- spin_lock_irqsave(&info->lock,flags);
- info->tx_put += c;
- if (info->tx_put >= info->max_frame_size)
- info->tx_put -= info->max_frame_size;
- info->tx_count += c;
- spin_unlock_irqrestore(&info->lock,flags);
-
- buf += c;
- count -= c;
- ret += c;
- }
-
- if (info->params.mode == MGSL_MODE_HDLC) {
- if (count) {
- ret = info->tx_count = 0;
- goto cleanup;
- }
- tx_load_dma_buffer(info, info->tx_buf, info->tx_count);
- }
-start:
- if (info->tx_count && !tty->stopped && !tty->hw_stopped) {
- spin_lock_irqsave(&info->lock,flags);
- if (!info->tx_active)
- tx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-
-cleanup:
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk( "%s(%d):%s write() returning=%d\n",
- __FILE__,__LINE__,info->device_name,ret);
- return ret;
-}
-
-/* Add a character to the transmit buffer.
- */
-static int put_char(struct tty_struct *tty, unsigned char ch)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
- int ret = 0;
-
- if ( debug_level >= DEBUG_LEVEL_INFO ) {
- printk( "%s(%d):%s put_char(%d)\n",
- __FILE__,__LINE__,info->device_name,ch);
- }
-
- if (sanity_check(info, tty->name, "put_char"))
- return 0;
-
- if (!info->tx_buf)
- return 0;
-
- spin_lock_irqsave(&info->lock,flags);
-
- if ( (info->params.mode != MGSL_MODE_HDLC) ||
- !info->tx_active ) {
-
- if (info->tx_count < info->max_frame_size - 1) {
- info->tx_buf[info->tx_put++] = ch;
- if (info->tx_put >= info->max_frame_size)
- info->tx_put -= info->max_frame_size;
- info->tx_count++;
- ret = 1;
- }
- }
-
- spin_unlock_irqrestore(&info->lock,flags);
- return ret;
-}
-
-/* Send a high-priority XON/XOFF character
- */
-static void send_xchar(struct tty_struct *tty, char ch)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s send_xchar(%d)\n",
- __FILE__,__LINE__, info->device_name, ch );
-
- if (sanity_check(info, tty->name, "send_xchar"))
- return;
-
- info->x_char = ch;
- if (ch) {
- /* Make sure transmit interrupts are on */
- spin_lock_irqsave(&info->lock,flags);
- if (!info->tx_enabled)
- tx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-}
-
-/* Wait until the transmitter is empty.
- */
-static void wait_until_sent(struct tty_struct *tty, int timeout)
-{
- SLMP_INFO * info = tty->driver_data;
- unsigned long orig_jiffies, char_time;
-
- if (!info )
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s wait_until_sent() entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (sanity_check(info, tty->name, "wait_until_sent"))
- return;
-
- if (!test_bit(ASYNCB_INITIALIZED, &info->port.flags))
- goto exit;
-
- orig_jiffies = jiffies;
-
- /* Set check interval to 1/5 of estimated time to
- * send a character, and make it at least 1. The check
- * interval should also be less than the timeout.
- * Note: use tight timings here to satisfy the NIST-PCTS.
- */
-
- if ( info->params.data_rate ) {
- char_time = info->timeout/(32 * 5);
- if (!char_time)
- char_time++;
- } else
- char_time = 1;
-
- if (timeout)
- char_time = min_t(unsigned long, char_time, timeout);
-
- if ( info->params.mode == MGSL_MODE_HDLC ) {
- while (info->tx_active) {
- msleep_interruptible(jiffies_to_msecs(char_time));
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
- } else {
- /*
- * TODO: determine if there is something similar to USC16C32
- * TXSTATUS_ALL_SENT status
- */
- while ( info->tx_active && info->tx_enabled) {
- msleep_interruptible(jiffies_to_msecs(char_time));
- if (signal_pending(current))
- break;
- if (timeout && time_after(jiffies, orig_jiffies + timeout))
- break;
- }
- }
-
-exit:
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s wait_until_sent() exit\n",
- __FILE__,__LINE__, info->device_name );
-}
-
-/* Return the count of free bytes in transmit buffer
- */
-static int write_room(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
- int ret;
-
- if (sanity_check(info, tty->name, "write_room"))
- return 0;
-
- if (info->params.mode == MGSL_MODE_HDLC) {
- ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE;
- } else {
- ret = info->max_frame_size - info->tx_count - 1;
- if (ret < 0)
- ret = 0;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s write_room()=%d\n",
- __FILE__, __LINE__, info->device_name, ret);
-
- return ret;
-}
-
-/* enable transmitter and send remaining buffered characters
- */
-static void flush_chars(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s flush_chars() entry tx_count=%d\n",
- __FILE__,__LINE__,info->device_name,info->tx_count);
-
- if (sanity_check(info, tty->name, "flush_chars"))
- return;
-
- if (info->tx_count <= 0 || tty->stopped || tty->hw_stopped ||
- !info->tx_buf)
- return;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s flush_chars() entry, starting transmitter\n",
- __FILE__,__LINE__,info->device_name );
-
- spin_lock_irqsave(&info->lock,flags);
-
- if (!info->tx_active) {
- if ( (info->params.mode == MGSL_MODE_HDLC) &&
- info->tx_count ) {
- /* operating in synchronous (frame oriented) mode */
- /* copy data from circular tx_buf to */
- /* transmit DMA buffer. */
- tx_load_dma_buffer(info,
- info->tx_buf,info->tx_count);
- }
- tx_start(info);
- }
-
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Discard all data in the send buffer
- */
-static void flush_buffer(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s flush_buffer() entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (sanity_check(info, tty->name, "flush_buffer"))
- return;
-
- spin_lock_irqsave(&info->lock,flags);
- info->tx_count = info->tx_put = info->tx_get = 0;
- del_timer(&info->tx_timer);
- spin_unlock_irqrestore(&info->lock,flags);
-
- tty_wakeup(tty);
-}
-
-/* throttle (stop) transmitter
- */
-static void tx_hold(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "tx_hold"))
- return;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s(%d):%s tx_hold()\n",
- __FILE__,__LINE__,info->device_name);
-
- spin_lock_irqsave(&info->lock,flags);
- if (info->tx_enabled)
- tx_stop(info);
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* release (start) transmitter
- */
-static void tx_release(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (sanity_check(info, tty->name, "tx_release"))
- return;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s(%d):%s tx_release()\n",
- __FILE__,__LINE__,info->device_name);
-
- spin_lock_irqsave(&info->lock,flags);
- if (!info->tx_enabled)
- tx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Service an IOCTL request
- *
- * Arguments:
- *
- * tty pointer to tty instance data
- * file pointer to associated file object for device
- * cmd IOCTL command code
- * arg command argument/context
- *
- * Return Value: 0 if success, otherwise error code
- */
-static int ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- SLMP_INFO *info = tty->driver_data;
- void __user *argp = (void __user *)arg;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s ioctl() cmd=%08X\n", __FILE__,__LINE__,
- info->device_name, cmd );
-
- if (sanity_check(info, tty->name, "ioctl"))
- return -ENODEV;
-
- if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
- (cmd != TIOCMIWAIT)) {
- if (tty->flags & (1 << TTY_IO_ERROR))
- return -EIO;
- }
-
- switch (cmd) {
- case MGSL_IOCGPARAMS:
- return get_params(info, argp);
- case MGSL_IOCSPARAMS:
- return set_params(info, argp);
- case MGSL_IOCGTXIDLE:
- return get_txidle(info, argp);
- case MGSL_IOCSTXIDLE:
- return set_txidle(info, (int)arg);
- case MGSL_IOCTXENABLE:
- return tx_enable(info, (int)arg);
- case MGSL_IOCRXENABLE:
- return rx_enable(info, (int)arg);
- case MGSL_IOCTXABORT:
- return tx_abort(info);
- case MGSL_IOCGSTATS:
- return get_stats(info, argp);
- case MGSL_IOCWAITEVENT:
- return wait_mgsl_event(info, argp);
- case MGSL_IOCLOOPTXDONE:
- return 0; // TODO: Not supported, need to document
- /* Wait for modem input (DCD,RI,DSR,CTS) change
- * as specified by mask in arg (TIOCM_RNG/DSR/CD/CTS)
- */
- case TIOCMIWAIT:
- return modem_input_wait(info,(int)arg);
-
- /*
- * Get counter of input serial line interrupts (DCD,RI,DSR,CTS)
- * Return: write counters to the user passed counter struct
- * NB: both 1->0 and 0->1 transitions are counted except for
- * RI where only 0->1 is counted.
- */
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static int get_icount(struct tty_struct *tty,
- struct serial_icounter_struct *icount)
-{
- SLMP_INFO *info = tty->driver_data;
- struct mgsl_icount cnow; /* kernel counter temps */
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- cnow = info->icount;
- spin_unlock_irqrestore(&info->lock,flags);
-
- icount->cts = cnow.cts;
- icount->dsr = cnow.dsr;
- icount->rng = cnow.rng;
- icount->dcd = cnow.dcd;
- icount->rx = cnow.rx;
- icount->tx = cnow.tx;
- icount->frame = cnow.frame;
- icount->overrun = cnow.overrun;
- icount->parity = cnow.parity;
- icount->brk = cnow.brk;
- icount->buf_overrun = cnow.buf_overrun;
-
- return 0;
-}
-
-/*
- * /proc fs routines....
- */
-
-static inline void line_info(struct seq_file *m, SLMP_INFO *info)
-{
- char stat_buf[30];
- unsigned long flags;
-
- seq_printf(m, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
- "\tIRQ=%d MaxFrameSize=%u\n",
- info->device_name,
- info->phys_sca_base,
- info->phys_memory_base,
- info->phys_statctrl_base,
- info->phys_lcr_base,
- info->irq_level,
- info->max_frame_size );
-
- /* output current serial signal states */
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- stat_buf[0] = 0;
- stat_buf[1] = 0;
- if (info->serial_signals & SerialSignal_RTS)
- strcat(stat_buf, "|RTS");
- if (info->serial_signals & SerialSignal_CTS)
- strcat(stat_buf, "|CTS");
- if (info->serial_signals & SerialSignal_DTR)
- strcat(stat_buf, "|DTR");
- if (info->serial_signals & SerialSignal_DSR)
- strcat(stat_buf, "|DSR");
- if (info->serial_signals & SerialSignal_DCD)
- strcat(stat_buf, "|CD");
- if (info->serial_signals & SerialSignal_RI)
- strcat(stat_buf, "|RI");
-
- if (info->params.mode == MGSL_MODE_HDLC) {
- seq_printf(m, "\tHDLC txok:%d rxok:%d",
- info->icount.txok, info->icount.rxok);
- if (info->icount.txunder)
- seq_printf(m, " txunder:%d", info->icount.txunder);
- if (info->icount.txabort)
- seq_printf(m, " txabort:%d", info->icount.txabort);
- if (info->icount.rxshort)
- seq_printf(m, " rxshort:%d", info->icount.rxshort);
- if (info->icount.rxlong)
- seq_printf(m, " rxlong:%d", info->icount.rxlong);
- if (info->icount.rxover)
- seq_printf(m, " rxover:%d", info->icount.rxover);
- if (info->icount.rxcrc)
- seq_printf(m, " rxlong:%d", info->icount.rxcrc);
- } else {
- seq_printf(m, "\tASYNC tx:%d rx:%d",
- info->icount.tx, info->icount.rx);
- if (info->icount.frame)
- seq_printf(m, " fe:%d", info->icount.frame);
- if (info->icount.parity)
- seq_printf(m, " pe:%d", info->icount.parity);
- if (info->icount.brk)
- seq_printf(m, " brk:%d", info->icount.brk);
- if (info->icount.overrun)
- seq_printf(m, " oe:%d", info->icount.overrun);
- }
-
- /* Append serial signal status to end */
- seq_printf(m, " %s\n", stat_buf+1);
-
- seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
- info->tx_active,info->bh_requested,info->bh_running,
- info->pending_bh);
-}
-
-/* Called to print information about devices
- */
-static int synclinkmp_proc_show(struct seq_file *m, void *v)
-{
- SLMP_INFO *info;
-
- seq_printf(m, "synclinkmp driver:%s\n", driver_version);
-
- info = synclinkmp_device_list;
- while( info ) {
- line_info(m, info);
- info = info->next_device;
- }
- return 0;
-}
-
-static int synclinkmp_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, synclinkmp_proc_show, NULL);
-}
-
-static const struct file_operations synclinkmp_proc_fops = {
- .owner = THIS_MODULE,
- .open = synclinkmp_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/* Return the count of bytes in transmit buffer
- */
-static int chars_in_buffer(struct tty_struct *tty)
-{
- SLMP_INFO *info = tty->driver_data;
-
- if (sanity_check(info, tty->name, "chars_in_buffer"))
- return 0;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s chars_in_buffer()=%d\n",
- __FILE__, __LINE__, info->device_name, info->tx_count);
-
- return info->tx_count;
-}
-
-/* Signal remote device to throttle send data (our receive data)
- */
-static void throttle(struct tty_struct * tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s throttle() entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (sanity_check(info, tty->name, "throttle"))
- return;
-
- if (I_IXOFF(tty))
- send_xchar(tty, STOP_CHAR(tty));
-
- if (tty->termios->c_cflag & CRTSCTS) {
- spin_lock_irqsave(&info->lock,flags);
- info->serial_signals &= ~SerialSignal_RTS;
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-}
-
-/* Signal remote device to stop throttling send data (our receive data)
- */
-static void unthrottle(struct tty_struct * tty)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s unthrottle() entry\n",
- __FILE__,__LINE__, info->device_name );
-
- if (sanity_check(info, tty->name, "unthrottle"))
- return;
-
- if (I_IXOFF(tty)) {
- if (info->x_char)
- info->x_char = 0;
- else
- send_xchar(tty, START_CHAR(tty));
- }
-
- if (tty->termios->c_cflag & CRTSCTS) {
- spin_lock_irqsave(&info->lock,flags);
- info->serial_signals |= SerialSignal_RTS;
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
-}
-
-/* set or clear transmit break condition
- * break_state -1=set break condition, 0=clear
- */
-static int set_break(struct tty_struct *tty, int break_state)
-{
- unsigned char RegValue;
- SLMP_INFO * info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s set_break(%d)\n",
- __FILE__,__LINE__, info->device_name, break_state);
-
- if (sanity_check(info, tty->name, "set_break"))
- return -EINVAL;
-
- spin_lock_irqsave(&info->lock,flags);
- RegValue = read_reg(info, CTL);
- if (break_state == -1)
- RegValue |= BIT3;
- else
- RegValue &= ~BIT3;
- write_reg(info, CTL, RegValue);
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-#if SYNCLINK_GENERIC_HDLC
-
-/**
- * called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
- * set encoding and frame check sequence (FCS) options
- *
- * dev pointer to network device structure
- * encoding serial encoding setting
- * parity FCS setting
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
- unsigned short parity)
-{
- SLMP_INFO *info = dev_to_port(dev);
- unsigned char new_encoding;
- unsigned short new_crctype;
-
- /* return error if TTY interface open */
- if (info->port.count)
- return -EBUSY;
-
- switch (encoding)
- {
- case ENCODING_NRZ: new_encoding = HDLC_ENCODING_NRZ; break;
- case ENCODING_NRZI: new_encoding = HDLC_ENCODING_NRZI_SPACE; break;
- case ENCODING_FM_MARK: new_encoding = HDLC_ENCODING_BIPHASE_MARK; break;
- case ENCODING_FM_SPACE: new_encoding = HDLC_ENCODING_BIPHASE_SPACE; break;
- case ENCODING_MANCHESTER: new_encoding = HDLC_ENCODING_BIPHASE_LEVEL; break;
- default: return -EINVAL;
- }
-
- switch (parity)
- {
- case PARITY_NONE: new_crctype = HDLC_CRC_NONE; break;
- case PARITY_CRC16_PR1_CCITT: new_crctype = HDLC_CRC_16_CCITT; break;
- case PARITY_CRC32_PR1_CCITT: new_crctype = HDLC_CRC_32_CCITT; break;
- default: return -EINVAL;
- }
-
- info->params.encoding = new_encoding;
- info->params.crc_type = new_crctype;
-
- /* if network interface up, reprogram hardware */
- if (info->netcount)
- program_hw(info);
-
- return 0;
-}
-
-/**
- * called by generic HDLC layer to send frame
- *
- * skb socket buffer containing HDLC frame
- * dev pointer to network device structure
- */
-static netdev_tx_t hdlcdev_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- SLMP_INFO *info = dev_to_port(dev);
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk(KERN_INFO "%s:hdlc_xmit(%s)\n",__FILE__,dev->name);
-
- /* stop sending until this frame completes */
- netif_stop_queue(dev);
-
- /* copy data to device buffers */
- info->tx_count = skb->len;
- tx_load_dma_buffer(info, skb->data, skb->len);
-
- /* update network statistics */
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- /* done with socket buffer, so free it */
- dev_kfree_skb(skb);
-
- /* save start time for transmit timeout detection */
- dev->trans_start = jiffies;
-
- /* start hardware transmitter if necessary */
- spin_lock_irqsave(&info->lock,flags);
- if (!info->tx_active)
- tx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- return NETDEV_TX_OK;
-}
-
-/**
- * called by network layer when interface enabled
- * claim resources and initialize hardware
- *
- * dev pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_open(struct net_device *dev)
-{
- SLMP_INFO *info = dev_to_port(dev);
- int rc;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s:hdlcdev_open(%s)\n",__FILE__,dev->name);
-
- /* generic HDLC layer open processing */
- if ((rc = hdlc_open(dev)))
- return rc;
-
- /* arbitrate between network and tty opens */
- spin_lock_irqsave(&info->netlock, flags);
- if (info->port.count != 0 || info->netcount != 0) {
- printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
- spin_unlock_irqrestore(&info->netlock, flags);
- return -EBUSY;
- }
- info->netcount=1;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- /* claim resources and init adapter */
- if ((rc = startup(info)) != 0) {
- spin_lock_irqsave(&info->netlock, flags);
- info->netcount=0;
- spin_unlock_irqrestore(&info->netlock, flags);
- return rc;
- }
-
- /* assert DTR and RTS, apply hardware settings */
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- program_hw(info);
-
- /* enable network layer transmit */
- dev->trans_start = jiffies;
- netif_start_queue(dev);
-
- /* inform generic HDLC layer of current DCD status */
- spin_lock_irqsave(&info->lock, flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock, flags);
- if (info->serial_signals & SerialSignal_DCD)
- netif_carrier_on(dev);
- else
- netif_carrier_off(dev);
- return 0;
-}
-
-/**
- * called by network layer when interface is disabled
- * shutdown hardware and release resources
- *
- * dev pointer to network device structure
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_close(struct net_device *dev)
-{
- SLMP_INFO *info = dev_to_port(dev);
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s:hdlcdev_close(%s)\n",__FILE__,dev->name);
-
- netif_stop_queue(dev);
-
- /* shutdown adapter and release resources */
- shutdown(info);
-
- hdlc_close(dev);
-
- spin_lock_irqsave(&info->netlock, flags);
- info->netcount=0;
- spin_unlock_irqrestore(&info->netlock, flags);
-
- return 0;
-}
-
-/**
- * called by network layer to process IOCTL call to network device
- *
- * dev pointer to network device structure
- * ifr pointer to network interface request structure
- * cmd IOCTL command code
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
-{
- const size_t size = sizeof(sync_serial_settings);
- sync_serial_settings new_line;
- sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync;
- SLMP_INFO *info = dev_to_port(dev);
- unsigned int flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
-
- /* return error if TTY interface open */
- if (info->port.count)
- return -EBUSY;
-
- if (cmd != SIOCWANDEV)
- return hdlc_ioctl(dev, ifr, cmd);
-
- switch(ifr->ifr_settings.type) {
- case IF_GET_IFACE: /* return current sync_serial_settings */
-
- ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL;
- if (ifr->ifr_settings.size < size) {
- ifr->ifr_settings.size = size; /* data size wanted */
- return -ENOBUFS;
- }
-
- flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN);
-
- switch (flags){
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN): new_line.clock_type = CLOCK_EXT; break;
- case (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG): new_line.clock_type = CLOCK_INT; break;
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG): new_line.clock_type = CLOCK_TXINT; break;
- case (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN): new_line.clock_type = CLOCK_TXFROMRX; break;
- default: new_line.clock_type = CLOCK_DEFAULT;
- }
-
- new_line.clock_rate = info->params.clock_speed;
- new_line.loopback = info->params.loopback ? 1:0;
-
- if (copy_to_user(line, &new_line, size))
- return -EFAULT;
- return 0;
-
- case IF_IFACE_SYNC_SERIAL: /* set sync_serial_settings */
-
- if(!capable(CAP_NET_ADMIN))
- return -EPERM;
- if (copy_from_user(&new_line, line, size))
- return -EFAULT;
-
- switch (new_line.clock_type)
- {
- case CLOCK_EXT: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_TXCPIN; break;
- case CLOCK_TXFROMRX: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_RXCPIN; break;
- case CLOCK_INT: flags = HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG; break;
- case CLOCK_TXINT: flags = HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_TXC_BRG; break;
- case CLOCK_DEFAULT: flags = info->params.flags &
- (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN); break;
- default: return -EINVAL;
- }
-
- if (new_line.loopback != 0 && new_line.loopback != 1)
- return -EINVAL;
-
- info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |
- HDLC_FLAG_RXC_BRG | HDLC_FLAG_RXC_TXCPIN |
- HDLC_FLAG_TXC_TXCPIN | HDLC_FLAG_TXC_DPLL |
- HDLC_FLAG_TXC_BRG | HDLC_FLAG_TXC_RXCPIN);
- info->params.flags |= flags;
-
- info->params.loopback = new_line.loopback;
-
- if (flags & (HDLC_FLAG_RXC_BRG | HDLC_FLAG_TXC_BRG))
- info->params.clock_speed = new_line.clock_rate;
- else
- info->params.clock_speed = 0;
-
- /* if network interface up, reprogram hardware */
- if (info->netcount)
- program_hw(info);
- return 0;
-
- default:
- return hdlc_ioctl(dev, ifr, cmd);
- }
-}
-
-/**
- * called by network layer when transmit timeout is detected
- *
- * dev pointer to network device structure
- */
-static void hdlcdev_tx_timeout(struct net_device *dev)
-{
- SLMP_INFO *info = dev_to_port(dev);
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("hdlcdev_tx_timeout(%s)\n",dev->name);
-
- dev->stats.tx_errors++;
- dev->stats.tx_aborted_errors++;
-
- spin_lock_irqsave(&info->lock,flags);
- tx_stop(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- netif_wake_queue(dev);
-}
-
-/**
- * called by device driver when transmit completes
- * reenable network layer transmit if stopped
- *
- * info pointer to device instance information
- */
-static void hdlcdev_tx_done(SLMP_INFO *info)
-{
- if (netif_queue_stopped(info->netdev))
- netif_wake_queue(info->netdev);
-}
-
-/**
- * called by device driver when frame received
- * pass frame to network layer
- *
- * info pointer to device instance information
- * buf pointer to buffer contianing frame data
- * size count of data bytes in buf
- */
-static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
-{
- struct sk_buff *skb = dev_alloc_skb(size);
- struct net_device *dev = info->netdev;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("hdlcdev_rx(%s)\n",dev->name);
-
- if (skb == NULL) {
- printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
- dev->name);
- dev->stats.rx_dropped++;
- return;
- }
-
- memcpy(skb_put(skb, size), buf, size);
-
- skb->protocol = hdlc_type_trans(skb, dev);
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += size;
-
- netif_rx(skb);
-}
-
-static const struct net_device_ops hdlcdev_ops = {
- .ndo_open = hdlcdev_open,
- .ndo_stop = hdlcdev_close,
- .ndo_change_mtu = hdlc_change_mtu,
- .ndo_start_xmit = hdlc_start_xmit,
- .ndo_do_ioctl = hdlcdev_ioctl,
- .ndo_tx_timeout = hdlcdev_tx_timeout,
-};
-
-/**
- * called by device driver when adding device instance
- * do generic HDLC initialization
- *
- * info pointer to device instance information
- *
- * returns 0 if success, otherwise error code
- */
-static int hdlcdev_init(SLMP_INFO *info)
-{
- int rc;
- struct net_device *dev;
- hdlc_device *hdlc;
-
- /* allocate and initialize network and HDLC layer objects */
-
- if (!(dev = alloc_hdlcdev(info))) {
- printk(KERN_ERR "%s:hdlc device allocation failure\n",__FILE__);
- return -ENOMEM;
- }
-
- /* for network layer reporting purposes only */
- dev->mem_start = info->phys_sca_base;
- dev->mem_end = info->phys_sca_base + SCA_BASE_SIZE - 1;
- dev->irq = info->irq_level;
-
- /* network layer callbacks and settings */
- dev->netdev_ops = &hdlcdev_ops;
- dev->watchdog_timeo = 10 * HZ;
- dev->tx_queue_len = 50;
-
- /* generic HDLC layer callbacks and settings */
- hdlc = dev_to_hdlc(dev);
- hdlc->attach = hdlcdev_attach;
- hdlc->xmit = hdlcdev_xmit;
-
- /* register objects with HDLC layer */
- if ((rc = register_hdlc_device(dev))) {
- printk(KERN_WARNING "%s:unable to register hdlc device\n",__FILE__);
- free_netdev(dev);
- return rc;
- }
-
- info->netdev = dev;
- return 0;
-}
-
-/**
- * called by device driver when removing device instance
- * do generic HDLC cleanup
- *
- * info pointer to device instance information
- */
-static void hdlcdev_exit(SLMP_INFO *info)
-{
- unregister_hdlc_device(info->netdev);
- free_netdev(info->netdev);
- info->netdev = NULL;
-}
-
-#endif /* CONFIG_HDLC */
-
-
-/* Return next bottom half action to perform.
- * Return Value: BH action code or 0 if nothing to do.
- */
-static int bh_action(SLMP_INFO *info)
-{
- unsigned long flags;
- int rc = 0;
-
- spin_lock_irqsave(&info->lock,flags);
-
- if (info->pending_bh & BH_RECEIVE) {
- info->pending_bh &= ~BH_RECEIVE;
- rc = BH_RECEIVE;
- } else if (info->pending_bh & BH_TRANSMIT) {
- info->pending_bh &= ~BH_TRANSMIT;
- rc = BH_TRANSMIT;
- } else if (info->pending_bh & BH_STATUS) {
- info->pending_bh &= ~BH_STATUS;
- rc = BH_STATUS;
- }
-
- if (!rc) {
- /* Mark BH routine as complete */
- info->bh_running = false;
- info->bh_requested = false;
- }
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- return rc;
-}
-
-/* Perform bottom half processing of work items queued by ISR.
- */
-static void bh_handler(struct work_struct *work)
-{
- SLMP_INFO *info = container_of(work, SLMP_INFO, task);
- int action;
-
- if (!info)
- return;
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):%s bh_handler() entry\n",
- __FILE__,__LINE__,info->device_name);
-
- info->bh_running = true;
-
- while((action = bh_action(info)) != 0) {
-
- /* Process work item */
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):%s bh_handler() work item action=%d\n",
- __FILE__,__LINE__,info->device_name, action);
-
- switch (action) {
-
- case BH_RECEIVE:
- bh_receive(info);
- break;
- case BH_TRANSMIT:
- bh_transmit(info);
- break;
- case BH_STATUS:
- bh_status(info);
- break;
- default:
- /* unknown work item ID */
- printk("%s(%d):%s Unknown work item ID=%08X!\n",
- __FILE__,__LINE__,info->device_name,action);
- break;
- }
- }
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):%s bh_handler() exit\n",
- __FILE__,__LINE__,info->device_name);
-}
-
-static void bh_receive(SLMP_INFO *info)
-{
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):%s bh_receive()\n",
- __FILE__,__LINE__,info->device_name);
-
- while( rx_get_frame(info) );
-}
-
-static void bh_transmit(SLMP_INFO *info)
-{
- struct tty_struct *tty = info->port.tty;
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):%s bh_transmit() entry\n",
- __FILE__,__LINE__,info->device_name);
-
- if (tty)
- tty_wakeup(tty);
-}
-
-static void bh_status(SLMP_INFO *info)
-{
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk( "%s(%d):%s bh_status() entry\n",
- __FILE__,__LINE__,info->device_name);
-
- info->ri_chkcount = 0;
- info->dsr_chkcount = 0;
- info->dcd_chkcount = 0;
- info->cts_chkcount = 0;
-}
-
-static void isr_timer(SLMP_INFO * info)
-{
- unsigned char timer = (info->port_num & 1) ? TIMER2 : TIMER0;
-
- /* IER2<7..4> = timer<3..0> interrupt enables (0=disabled) */
- write_reg(info, IER2, 0);
-
- /* TMCS, Timer Control/Status Register
- *
- * 07 CMF, Compare match flag (read only) 1=match
- * 06 ECMI, CMF Interrupt Enable: 0=disabled
- * 05 Reserved, must be 0
- * 04 TME, Timer Enable
- * 03..00 Reserved, must be 0
- *
- * 0000 0000
- */
- write_reg(info, (unsigned char)(timer + TMCS), 0);
-
- info->irq_occurred = true;
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_timer()\n",
- __FILE__,__LINE__,info->device_name);
-}
-
-static void isr_rxint(SLMP_INFO * info)
-{
- struct tty_struct *tty = info->port.tty;
- struct mgsl_icount *icount = &info->icount;
- unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
- unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
-
- /* clear status bits */
- if (status)
- write_reg(info, SR1, status);
-
- if (status2)
- write_reg(info, SR2, status2);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_rxint status=%02X %02x\n",
- __FILE__,__LINE__,info->device_name,status,status2);
-
- if (info->params.mode == MGSL_MODE_ASYNC) {
- if (status & BRKD) {
- icount->brk++;
-
- /* process break detection if tty control
- * is not set to ignore it
- */
- if ( tty ) {
- if (!(status & info->ignore_status_mask1)) {
- if (info->read_status_mask1 & BRKD) {
- tty_insert_flip_char(tty, 0, TTY_BREAK);
- if (info->port.flags & ASYNC_SAK)
- do_SAK(tty);
- }
- }
- }
- }
- }
- else {
- if (status & (FLGD|IDLD)) {
- if (status & FLGD)
- info->icount.exithunt++;
- else if (status & IDLD)
- info->icount.rxidle++;
- wake_up_interruptible(&info->event_wait_q);
- }
- }
-
- if (status & CDCD) {
- /* simulate a common modem status change interrupt
- * for our handler
- */
- get_signals( info );
- isr_io_pin(info,
- MISCSTATUS_DCD_LATCHED|(info->serial_signals&SerialSignal_DCD));
- }
-}
-
-/*
- * handle async rx data interrupts
- */
-static void isr_rxrdy(SLMP_INFO * info)
-{
- u16 status;
- unsigned char DataByte;
- struct tty_struct *tty = info->port.tty;
- struct mgsl_icount *icount = &info->icount;
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_rxrdy\n",
- __FILE__,__LINE__,info->device_name);
-
- while((status = read_reg(info,CST0)) & BIT0)
- {
- int flag = 0;
- bool over = false;
- DataByte = read_reg(info,TRB);
-
- icount->rx++;
-
- if ( status & (PE + FRME + OVRN) ) {
- printk("%s(%d):%s rxerr=%04X\n",
- __FILE__,__LINE__,info->device_name,status);
-
- /* update error statistics */
- if (status & PE)
- icount->parity++;
- else if (status & FRME)
- icount->frame++;
- else if (status & OVRN)
- icount->overrun++;
-
- /* discard char if tty control flags say so */
- if (status & info->ignore_status_mask2)
- continue;
-
- status &= info->read_status_mask2;
-
- if ( tty ) {
- if (status & PE)
- flag = TTY_PARITY;
- else if (status & FRME)
- flag = TTY_FRAME;
- if (status & OVRN) {
- /* Overrun is special, since it's
- * reported immediately, and doesn't
- * affect the current character
- */
- over = true;
- }
- }
- } /* end of if (error) */
-
- if ( tty ) {
- tty_insert_flip_char(tty, DataByte, flag);
- if (over)
- tty_insert_flip_char(tty, 0, TTY_OVERRUN);
- }
- }
-
- if ( debug_level >= DEBUG_LEVEL_ISR ) {
- printk("%s(%d):%s rx=%d brk=%d parity=%d frame=%d overrun=%d\n",
- __FILE__,__LINE__,info->device_name,
- icount->rx,icount->brk,icount->parity,
- icount->frame,icount->overrun);
- }
-
- if ( tty )
- tty_flip_buffer_push(tty);
-}
-
-static void isr_txeom(SLMP_INFO * info, unsigned char status)
-{
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_txeom status=%02x\n",
- __FILE__,__LINE__,info->device_name,status);
-
- write_reg(info, TXDMA + DIR, 0x00); /* disable Tx DMA IRQs */
- write_reg(info, TXDMA + DSR, 0xc0); /* clear IRQs and disable DMA */
- write_reg(info, TXDMA + DCMD, SWABORT); /* reset/init DMA channel */
-
- if (status & UDRN) {
- write_reg(info, CMD, TXRESET);
- write_reg(info, CMD, TXENABLE);
- } else
- write_reg(info, CMD, TXBUFCLR);
-
- /* disable and clear tx interrupts */
- info->ie0_value &= ~TXRDYE;
- info->ie1_value &= ~(IDLE + UDRN);
- write_reg16(info, IE0, (unsigned short)((info->ie1_value << 8) + info->ie0_value));
- write_reg(info, SR1, (unsigned char)(UDRN + IDLE));
-
- if ( info->tx_active ) {
- if (info->params.mode != MGSL_MODE_ASYNC) {
- if (status & UDRN)
- info->icount.txunder++;
- else if (status & IDLE)
- info->icount.txok++;
- }
-
- info->tx_active = false;
- info->tx_count = info->tx_put = info->tx_get = 0;
-
- del_timer(&info->tx_timer);
-
- if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done ) {
- info->serial_signals &= ~SerialSignal_RTS;
- info->drop_rts_on_tx_done = false;
- set_signals(info);
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_tx_done(info);
- else
-#endif
- {
- if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
- tx_stop(info);
- return;
- }
- info->pending_bh |= BH_TRANSMIT;
- }
- }
-}
-
-
-/*
- * handle tx status interrupts
- */
-static void isr_txint(SLMP_INFO * info)
-{
- unsigned char status = read_reg(info, SR1) & info->ie1_value & (UDRN + IDLE + CCTS);
-
- /* clear status bits */
- write_reg(info, SR1, status);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_txint status=%02x\n",
- __FILE__,__LINE__,info->device_name,status);
-
- if (status & (UDRN + IDLE))
- isr_txeom(info, status);
-
- if (status & CCTS) {
- /* simulate a common modem status change interrupt
- * for our handler
- */
- get_signals( info );
- isr_io_pin(info,
- MISCSTATUS_CTS_LATCHED|(info->serial_signals&SerialSignal_CTS));
-
- }
-}
-
-/*
- * handle async tx data interrupts
- */
-static void isr_txrdy(SLMP_INFO * info)
-{
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_txrdy() tx_count=%d\n",
- __FILE__,__LINE__,info->device_name,info->tx_count);
-
- if (info->params.mode != MGSL_MODE_ASYNC) {
- /* disable TXRDY IRQ, enable IDLE IRQ */
- info->ie0_value &= ~TXRDYE;
- info->ie1_value |= IDLE;
- write_reg16(info, IE0, (unsigned short)((info->ie1_value << 8) + info->ie0_value));
- return;
- }
-
- if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
- tx_stop(info);
- return;
- }
-
- if ( info->tx_count )
- tx_load_fifo( info );
- else {
- info->tx_active = false;
- info->ie0_value &= ~TXRDYE;
- write_reg(info, IE0, info->ie0_value);
- }
-
- if (info->tx_count < WAKEUP_CHARS)
- info->pending_bh |= BH_TRANSMIT;
-}
-
-static void isr_rxdmaok(SLMP_INFO * info)
-{
- /* BIT7 = EOT (end of transfer)
- * BIT6 = EOM (end of message/frame)
- */
- unsigned char status = read_reg(info,RXDMA + DSR) & 0xc0;
-
- /* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
- write_reg(info, RXDMA + DSR, (unsigned char)(status | 1));
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_rxdmaok(), status=%02x\n",
- __FILE__,__LINE__,info->device_name,status);
-
- info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_rxdmaerror(SLMP_INFO * info)
-{
- /* BIT5 = BOF (buffer overflow)
- * BIT4 = COF (counter overflow)
- */
- unsigned char status = read_reg(info,RXDMA + DSR) & 0x30;
-
- /* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
- write_reg(info, RXDMA + DSR, (unsigned char)(status | 1));
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_rxdmaerror(), status=%02x\n",
- __FILE__,__LINE__,info->device_name,status);
-
- info->rx_overflow = true;
- info->pending_bh |= BH_RECEIVE;
-}
-
-static void isr_txdmaok(SLMP_INFO * info)
-{
- unsigned char status_reg1 = read_reg(info, SR1);
-
- write_reg(info, TXDMA + DIR, 0x00); /* disable Tx DMA IRQs */
- write_reg(info, TXDMA + DSR, 0xc0); /* clear IRQs and disable DMA */
- write_reg(info, TXDMA + DCMD, SWABORT); /* reset/init DMA channel */
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_txdmaok(), status=%02x\n",
- __FILE__,__LINE__,info->device_name,status_reg1);
-
- /* program TXRDY as FIFO empty flag, enable TXRDY IRQ */
- write_reg16(info, TRC0, 0);
- info->ie0_value |= TXRDYE;
- write_reg(info, IE0, info->ie0_value);
-}
-
-static void isr_txdmaerror(SLMP_INFO * info)
-{
- /* BIT5 = BOF (buffer overflow)
- * BIT4 = COF (counter overflow)
- */
- unsigned char status = read_reg(info,TXDMA + DSR) & 0x30;
-
- /* clear IRQ (BIT0 must be 1 to prevent clearing DE bit) */
- write_reg(info, TXDMA + DSR, (unsigned char)(status | 1));
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s isr_txdmaerror(), status=%02x\n",
- __FILE__,__LINE__,info->device_name,status);
-}
-
-/* handle input serial signal changes
- */
-static void isr_io_pin( SLMP_INFO *info, u16 status )
-{
- struct mgsl_icount *icount;
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):isr_io_pin status=%04X\n",
- __FILE__,__LINE__,status);
-
- if (status & (MISCSTATUS_CTS_LATCHED | MISCSTATUS_DCD_LATCHED |
- MISCSTATUS_DSR_LATCHED | MISCSTATUS_RI_LATCHED) ) {
- icount = &info->icount;
- /* update input line counters */
- if (status & MISCSTATUS_RI_LATCHED) {
- icount->rng++;
- if ( status & SerialSignal_RI )
- info->input_signal_events.ri_up++;
- else
- info->input_signal_events.ri_down++;
- }
- if (status & MISCSTATUS_DSR_LATCHED) {
- icount->dsr++;
- if ( status & SerialSignal_DSR )
- info->input_signal_events.dsr_up++;
- else
- info->input_signal_events.dsr_down++;
- }
- if (status & MISCSTATUS_DCD_LATCHED) {
- if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) {
- info->ie1_value &= ~CDCD;
- write_reg(info, IE1, info->ie1_value);
- }
- icount->dcd++;
- if (status & SerialSignal_DCD) {
- info->input_signal_events.dcd_up++;
- } else
- info->input_signal_events.dcd_down++;
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount) {
- if (status & SerialSignal_DCD)
- netif_carrier_on(info->netdev);
- else
- netif_carrier_off(info->netdev);
- }
-#endif
- }
- if (status & MISCSTATUS_CTS_LATCHED)
- {
- if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT) {
- info->ie1_value &= ~CCTS;
- write_reg(info, IE1, info->ie1_value);
- }
- icount->cts++;
- if ( status & SerialSignal_CTS )
- info->input_signal_events.cts_up++;
- else
- info->input_signal_events.cts_down++;
- }
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
-
- if ( (info->port.flags & ASYNC_CHECK_CD) &&
- (status & MISCSTATUS_DCD_LATCHED) ) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s CD now %s...", info->device_name,
- (status & SerialSignal_DCD) ? "on" : "off");
- if (status & SerialSignal_DCD)
- wake_up_interruptible(&info->port.open_wait);
- else {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("doing serial hangup...");
- if (info->port.tty)
- tty_hangup(info->port.tty);
- }
- }
-
- if ( (info->port.flags & ASYNC_CTS_FLOW) &&
- (status & MISCSTATUS_CTS_LATCHED) ) {
- if ( info->port.tty ) {
- if (info->port.tty->hw_stopped) {
- if (status & SerialSignal_CTS) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("CTS tx start...");
- info->port.tty->hw_stopped = 0;
- tx_start(info);
- info->pending_bh |= BH_TRANSMIT;
- return;
- }
- } else {
- if (!(status & SerialSignal_CTS)) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("CTS tx stop...");
- info->port.tty->hw_stopped = 1;
- tx_stop(info);
- }
- }
- }
- }
- }
-
- info->pending_bh |= BH_STATUS;
-}
-
-/* Interrupt service routine entry point.
- *
- * Arguments:
- * irq interrupt number that caused interrupt
- * dev_id device ID supplied during interrupt registration
- * regs interrupted processor context
- */
-static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
-{
- SLMP_INFO *info = dev_id;
- unsigned char status, status0, status1=0;
- unsigned char dmastatus, dmastatus0, dmastatus1=0;
- unsigned char timerstatus0, timerstatus1=0;
- unsigned char shift;
- unsigned int i;
- unsigned short tmp;
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk(KERN_DEBUG "%s(%d): synclinkmp_interrupt(%d)entry.\n",
- __FILE__, __LINE__, info->irq_level);
-
- spin_lock(&info->lock);
-
- for(;;) {
-
- /* get status for SCA0 (ports 0-1) */
- tmp = read_reg16(info, ISR0); /* get ISR0 and ISR1 in one read */
- status0 = (unsigned char)tmp;
- dmastatus0 = (unsigned char)(tmp>>8);
- timerstatus0 = read_reg(info, ISR2);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk(KERN_DEBUG "%s(%d):%s status0=%02x, dmastatus0=%02x, timerstatus0=%02x\n",
- __FILE__, __LINE__, info->device_name,
- status0, dmastatus0, timerstatus0);
-
- if (info->port_count == 4) {
- /* get status for SCA1 (ports 2-3) */
- tmp = read_reg16(info->port_array[2], ISR0);
- status1 = (unsigned char)tmp;
- dmastatus1 = (unsigned char)(tmp>>8);
- timerstatus1 = read_reg(info->port_array[2], ISR2);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s status1=%02x, dmastatus1=%02x, timerstatus1=%02x\n",
- __FILE__,__LINE__,info->device_name,
- status1,dmastatus1,timerstatus1);
- }
-
- if (!status0 && !dmastatus0 && !timerstatus0 &&
- !status1 && !dmastatus1 && !timerstatus1)
- break;
-
- for(i=0; i < info->port_count ; i++) {
- if (info->port_array[i] == NULL)
- continue;
- if (i < 2) {
- status = status0;
- dmastatus = dmastatus0;
- } else {
- status = status1;
- dmastatus = dmastatus1;
- }
-
- shift = i & 1 ? 4 :0;
-
- if (status & BIT0 << shift)
- isr_rxrdy(info->port_array[i]);
- if (status & BIT1 << shift)
- isr_txrdy(info->port_array[i]);
- if (status & BIT2 << shift)
- isr_rxint(info->port_array[i]);
- if (status & BIT3 << shift)
- isr_txint(info->port_array[i]);
-
- if (dmastatus & BIT0 << shift)
- isr_rxdmaerror(info->port_array[i]);
- if (dmastatus & BIT1 << shift)
- isr_rxdmaok(info->port_array[i]);
- if (dmastatus & BIT2 << shift)
- isr_txdmaerror(info->port_array[i]);
- if (dmastatus & BIT3 << shift)
- isr_txdmaok(info->port_array[i]);
- }
-
- if (timerstatus0 & (BIT5 | BIT4))
- isr_timer(info->port_array[0]);
- if (timerstatus0 & (BIT7 | BIT6))
- isr_timer(info->port_array[1]);
- if (timerstatus1 & (BIT5 | BIT4))
- isr_timer(info->port_array[2]);
- if (timerstatus1 & (BIT7 | BIT6))
- isr_timer(info->port_array[3]);
- }
-
- for(i=0; i < info->port_count ; i++) {
- SLMP_INFO * port = info->port_array[i];
-
- /* Request bottom half processing if there's something
- * for it to do and the bh is not already running.
- *
- * Note: startup adapter diags require interrupts.
- * do not request bottom half processing if the
- * device is not open in a normal mode.
- */
- if ( port && (port->port.count || port->netcount) &&
- port->pending_bh && !port->bh_running &&
- !port->bh_requested ) {
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk("%s(%d):%s queueing bh task.\n",
- __FILE__,__LINE__,port->device_name);
- schedule_work(&port->task);
- port->bh_requested = true;
- }
- }
-
- spin_unlock(&info->lock);
-
- if ( debug_level >= DEBUG_LEVEL_ISR )
- printk(KERN_DEBUG "%s(%d):synclinkmp_interrupt(%d)exit.\n",
- __FILE__, __LINE__, info->irq_level);
- return IRQ_HANDLED;
-}
-
-/* Initialize and start device.
- */
-static int startup(SLMP_INFO * info)
-{
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);
-
- if (info->port.flags & ASYNC_INITIALIZED)
- return 0;
-
- if (!info->tx_buf) {
- info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
- if (!info->tx_buf) {
- printk(KERN_ERR"%s(%d):%s can't allocate transmit buffer\n",
- __FILE__,__LINE__,info->device_name);
- return -ENOMEM;
- }
- }
-
- info->pending_bh = 0;
-
- memset(&info->icount, 0, sizeof(info->icount));
-
- /* program hardware for current parameters */
- reset_port(info);
-
- change_params(info);
-
- mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
-
- if (info->port.tty)
- clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
- info->port.flags |= ASYNC_INITIALIZED;
-
- return 0;
-}
-
-/* Called by close() and hangup() to shutdown hardware
- */
-static void shutdown(SLMP_INFO * info)
-{
- unsigned long flags;
-
- if (!(info->port.flags & ASYNC_INITIALIZED))
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s synclinkmp_shutdown()\n",
- __FILE__,__LINE__, info->device_name );
-
- /* clear status wait queue because status changes */
- /* can't happen after shutting down the hardware */
- wake_up_interruptible(&info->status_event_wait_q);
- wake_up_interruptible(&info->event_wait_q);
-
- del_timer(&info->tx_timer);
- del_timer(&info->status_timer);
-
- kfree(info->tx_buf);
- info->tx_buf = NULL;
-
- spin_lock_irqsave(&info->lock,flags);
-
- reset_port(info);
-
- if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
- info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
- set_signals(info);
- }
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- if (info->port.tty)
- set_bit(TTY_IO_ERROR, &info->port.tty->flags);
-
- info->port.flags &= ~ASYNC_INITIALIZED;
-}
-
-static void program_hw(SLMP_INFO *info)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
-
- rx_stop(info);
- tx_stop(info);
-
- info->tx_count = info->tx_put = info->tx_get = 0;
-
- if (info->params.mode == MGSL_MODE_HDLC || info->netcount)
- hdlc_mode(info);
- else
- async_mode(info);
-
- set_signals(info);
-
- info->dcd_chkcount = 0;
- info->cts_chkcount = 0;
- info->ri_chkcount = 0;
- info->dsr_chkcount = 0;
-
- info->ie1_value |= (CDCD|CCTS);
- write_reg(info, IE1, info->ie1_value);
-
- get_signals(info);
-
- if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
- rx_start(info);
-
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Reconfigure adapter based on new parameters
- */
-static void change_params(SLMP_INFO *info)
-{
- unsigned cflag;
- int bits_per_char;
-
- if (!info->port.tty || !info->port.tty->termios)
- return;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s change_params()\n",
- __FILE__,__LINE__, info->device_name );
-
- cflag = info->port.tty->termios->c_cflag;
-
- /* if B0 rate (hangup) specified then negate DTR and RTS */
- /* otherwise assert DTR and RTS */
- if (cflag & CBAUD)
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- else
- info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
-
- /* byte size and parity */
-
- switch (cflag & CSIZE) {
- case CS5: info->params.data_bits = 5; break;
- case CS6: info->params.data_bits = 6; break;
- case CS7: info->params.data_bits = 7; break;
- case CS8: info->params.data_bits = 8; break;
- /* Never happens, but GCC is too dumb to figure it out */
- default: info->params.data_bits = 7; break;
- }
-
- if (cflag & CSTOPB)
- info->params.stop_bits = 2;
- else
- info->params.stop_bits = 1;
-
- info->params.parity = ASYNC_PARITY_NONE;
- if (cflag & PARENB) {
- if (cflag & PARODD)
- info->params.parity = ASYNC_PARITY_ODD;
- else
- info->params.parity = ASYNC_PARITY_EVEN;
-#ifdef CMSPAR
- if (cflag & CMSPAR)
- info->params.parity = ASYNC_PARITY_SPACE;
-#endif
- }
-
- /* calculate number of jiffies to transmit a full
- * FIFO (32 bytes) at specified data rate
- */
- bits_per_char = info->params.data_bits +
- info->params.stop_bits + 1;
-
- /* if port data rate is set to 460800 or less then
- * allow tty settings to override, otherwise keep the
- * current data rate.
- */
- if (info->params.data_rate <= 460800) {
- info->params.data_rate = tty_get_baud_rate(info->port.tty);
- }
-
- if ( info->params.data_rate ) {
- info->timeout = (32*HZ*bits_per_char) /
- info->params.data_rate;
- }
- info->timeout += HZ/50; /* Add .02 seconds of slop */
-
- if (cflag & CRTSCTS)
- info->port.flags |= ASYNC_CTS_FLOW;
- else
- info->port.flags &= ~ASYNC_CTS_FLOW;
-
- if (cflag & CLOCAL)
- info->port.flags &= ~ASYNC_CHECK_CD;
- else
- info->port.flags |= ASYNC_CHECK_CD;
-
- /* process tty input control flags */
-
- info->read_status_mask2 = OVRN;
- if (I_INPCK(info->port.tty))
- info->read_status_mask2 |= PE | FRME;
- if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
- info->read_status_mask1 |= BRKD;
- if (I_IGNPAR(info->port.tty))
- info->ignore_status_mask2 |= PE | FRME;
- if (I_IGNBRK(info->port.tty)) {
- info->ignore_status_mask1 |= BRKD;
- /* If ignoring parity and break indicators, ignore
- * overruns too. (For real raw support).
- */
- if (I_IGNPAR(info->port.tty))
- info->ignore_status_mask2 |= OVRN;
- }
-
- program_hw(info);
-}
-
-static int get_stats(SLMP_INFO * info, struct mgsl_icount __user *user_icount)
-{
- int err;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s get_params()\n",
- __FILE__,__LINE__, info->device_name);
-
- if (!user_icount) {
- memset(&info->icount, 0, sizeof(info->icount));
- } else {
- mutex_lock(&info->port.mutex);
- COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));
- mutex_unlock(&info->port.mutex);
- if (err)
- return -EFAULT;
- }
-
- return 0;
-}
-
-static int get_params(SLMP_INFO * info, MGSL_PARAMS __user *user_params)
-{
- int err;
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s get_params()\n",
- __FILE__,__LINE__, info->device_name);
-
- mutex_lock(&info->port.mutex);
- COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS));
- mutex_unlock(&info->port.mutex);
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s get_params() user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
- }
-
- return 0;
-}
-
-static int set_params(SLMP_INFO * info, MGSL_PARAMS __user *new_params)
-{
- unsigned long flags;
- MGSL_PARAMS tmp_params;
- int err;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s set_params\n",
- __FILE__,__LINE__,info->device_name );
- COPY_FROM_USER(err,&tmp_params, new_params, sizeof(MGSL_PARAMS));
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s set_params() user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
- }
-
- mutex_lock(&info->port.mutex);
- spin_lock_irqsave(&info->lock,flags);
- memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));
- spin_unlock_irqrestore(&info->lock,flags);
-
- change_params(info);
- mutex_unlock(&info->port.mutex);
-
- return 0;
-}
-
-static int get_txidle(SLMP_INFO * info, int __user *idle_mode)
-{
- int err;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s get_txidle()=%d\n",
- __FILE__,__LINE__, info->device_name, info->idle_mode);
-
- COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int));
- if (err) {
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s get_txidle() user buffer copy failed\n",
- __FILE__,__LINE__,info->device_name);
- return -EFAULT;
- }
-
- return 0;
-}
-
-static int set_txidle(SLMP_INFO * info, int idle_mode)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s set_txidle(%d)\n",
- __FILE__,__LINE__,info->device_name, idle_mode );
-
- spin_lock_irqsave(&info->lock,flags);
- info->idle_mode = idle_mode;
- tx_set_idle( info );
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-static int tx_enable(SLMP_INFO * info, int enable)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s tx_enable(%d)\n",
- __FILE__,__LINE__,info->device_name, enable);
-
- spin_lock_irqsave(&info->lock,flags);
- if ( enable ) {
- if ( !info->tx_enabled ) {
- tx_start(info);
- }
- } else {
- if ( info->tx_enabled )
- tx_stop(info);
- }
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-/* abort send HDLC frame
- */
-static int tx_abort(SLMP_INFO * info)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s tx_abort()\n",
- __FILE__,__LINE__,info->device_name);
-
- spin_lock_irqsave(&info->lock,flags);
- if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC ) {
- info->ie1_value &= ~UDRN;
- info->ie1_value |= IDLE;
- write_reg(info, IE1, info->ie1_value); /* disable tx status interrupts */
- write_reg(info, SR1, (unsigned char)(IDLE + UDRN)); /* clear pending */
-
- write_reg(info, TXDMA + DSR, 0); /* disable DMA channel */
- write_reg(info, TXDMA + DCMD, SWABORT); /* reset/init DMA channel */
-
- write_reg(info, CMD, TXABORT);
- }
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-static int rx_enable(SLMP_INFO * info, int enable)
-{
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s rx_enable(%d)\n",
- __FILE__,__LINE__,info->device_name,enable);
-
- spin_lock_irqsave(&info->lock,flags);
- if ( enable ) {
- if ( !info->rx_enabled )
- rx_start(info);
- } else {
- if ( info->rx_enabled )
- rx_stop(info);
- }
- spin_unlock_irqrestore(&info->lock,flags);
- return 0;
-}
-
-/* wait for specified event to occur
- */
-static int wait_mgsl_event(SLMP_INFO * info, int __user *mask_ptr)
-{
- unsigned long flags;
- int s;
- int rc=0;
- struct mgsl_icount cprev, cnow;
- int events;
- int mask;
- struct _input_signal_events oldsigs, newsigs;
- DECLARE_WAITQUEUE(wait, current);
-
- COPY_FROM_USER(rc,&mask, mask_ptr, sizeof(int));
- if (rc) {
- return -EFAULT;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s wait_mgsl_event(%d)\n",
- __FILE__,__LINE__,info->device_name,mask);
-
- spin_lock_irqsave(&info->lock,flags);
-
- /* return immediately if state matches requested events */
- get_signals(info);
- s = info->serial_signals;
-
- events = mask &
- ( ((s & SerialSignal_DSR) ? MgslEvent_DsrActive:MgslEvent_DsrInactive) +
- ((s & SerialSignal_DCD) ? MgslEvent_DcdActive:MgslEvent_DcdInactive) +
- ((s & SerialSignal_CTS) ? MgslEvent_CtsActive:MgslEvent_CtsInactive) +
- ((s & SerialSignal_RI) ? MgslEvent_RiActive :MgslEvent_RiInactive) );
- if (events) {
- spin_unlock_irqrestore(&info->lock,flags);
- goto exit;
- }
-
- /* save current irq counts */
- cprev = info->icount;
- oldsigs = info->input_signal_events;
-
- /* enable hunt and idle irqs if needed */
- if (mask & (MgslEvent_ExitHuntMode+MgslEvent_IdleReceived)) {
- unsigned char oldval = info->ie1_value;
- unsigned char newval = oldval +
- (mask & MgslEvent_ExitHuntMode ? FLGD:0) +
- (mask & MgslEvent_IdleReceived ? IDLD:0);
- if ( oldval != newval ) {
- info->ie1_value = newval;
- write_reg(info, IE1, info->ie1_value);
- }
- }
-
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&info->event_wait_q, &wait);
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- for(;;) {
- schedule();
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
-
- /* get current irq counts */
- spin_lock_irqsave(&info->lock,flags);
- cnow = info->icount;
- newsigs = info->input_signal_events;
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->lock,flags);
-
- /* if no change, wait aborted for some reason */
- if (newsigs.dsr_up == oldsigs.dsr_up &&
- newsigs.dsr_down == oldsigs.dsr_down &&
- newsigs.dcd_up == oldsigs.dcd_up &&
- newsigs.dcd_down == oldsigs.dcd_down &&
- newsigs.cts_up == oldsigs.cts_up &&
- newsigs.cts_down == oldsigs.cts_down &&
- newsigs.ri_up == oldsigs.ri_up &&
- newsigs.ri_down == oldsigs.ri_down &&
- cnow.exithunt == cprev.exithunt &&
- cnow.rxidle == cprev.rxidle) {
- rc = -EIO;
- break;
- }
-
- events = mask &
- ( (newsigs.dsr_up != oldsigs.dsr_up ? MgslEvent_DsrActive:0) +
- (newsigs.dsr_down != oldsigs.dsr_down ? MgslEvent_DsrInactive:0) +
- (newsigs.dcd_up != oldsigs.dcd_up ? MgslEvent_DcdActive:0) +
- (newsigs.dcd_down != oldsigs.dcd_down ? MgslEvent_DcdInactive:0) +
- (newsigs.cts_up != oldsigs.cts_up ? MgslEvent_CtsActive:0) +
- (newsigs.cts_down != oldsigs.cts_down ? MgslEvent_CtsInactive:0) +
- (newsigs.ri_up != oldsigs.ri_up ? MgslEvent_RiActive:0) +
- (newsigs.ri_down != oldsigs.ri_down ? MgslEvent_RiInactive:0) +
- (cnow.exithunt != cprev.exithunt ? MgslEvent_ExitHuntMode:0) +
- (cnow.rxidle != cprev.rxidle ? MgslEvent_IdleReceived:0) );
- if (events)
- break;
-
- cprev = cnow;
- oldsigs = newsigs;
- }
-
- remove_wait_queue(&info->event_wait_q, &wait);
- set_current_state(TASK_RUNNING);
-
-
- if (mask & (MgslEvent_ExitHuntMode + MgslEvent_IdleReceived)) {
- spin_lock_irqsave(&info->lock,flags);
- if (!waitqueue_active(&info->event_wait_q)) {
- /* disable enable exit hunt mode/idle rcvd IRQs */
- info->ie1_value &= ~(FLGD|IDLD);
- write_reg(info, IE1, info->ie1_value);
- }
- spin_unlock_irqrestore(&info->lock,flags);
- }
-exit:
- if ( rc == 0 )
- PUT_USER(rc, events, mask_ptr);
-
- return rc;
-}
-
-static int modem_input_wait(SLMP_INFO *info,int arg)
-{
- unsigned long flags;
- int rc;
- struct mgsl_icount cprev, cnow;
- DECLARE_WAITQUEUE(wait, current);
-
- /* save current irq counts */
- spin_lock_irqsave(&info->lock,flags);
- cprev = info->icount;
- add_wait_queue(&info->status_event_wait_q, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->lock,flags);
-
- for(;;) {
- schedule();
- if (signal_pending(current)) {
- rc = -ERESTARTSYS;
- break;
- }
-
- /* get new irq counts */
- spin_lock_irqsave(&info->lock,flags);
- cnow = info->icount;
- set_current_state(TASK_INTERRUPTIBLE);
- spin_unlock_irqrestore(&info->lock,flags);
-
- /* if no change, wait aborted for some reason */
- if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
- cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) {
- rc = -EIO;
- break;
- }
-
- /* check for change in caller specified modem input */
- if ((arg & TIOCM_RNG && cnow.rng != cprev.rng) ||
- (arg & TIOCM_DSR && cnow.dsr != cprev.dsr) ||
- (arg & TIOCM_CD && cnow.dcd != cprev.dcd) ||
- (arg & TIOCM_CTS && cnow.cts != cprev.cts)) {
- rc = 0;
- break;
- }
-
- cprev = cnow;
- }
- remove_wait_queue(&info->status_event_wait_q, &wait);
- set_current_state(TASK_RUNNING);
- return rc;
-}
-
-/* return the state of the serial control and status signals
- */
-static int tiocmget(struct tty_struct *tty, struct file *file)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned int result;
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +
- ((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +
- ((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +
- ((info->serial_signals & SerialSignal_RI) ? TIOCM_RNG:0) +
- ((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +
- ((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s tiocmget() value=%08X\n",
- __FILE__,__LINE__, info->device_name, result );
- return result;
-}
-
-/* set modem control signals (DTR/RTS)
- */
-static int tiocmset(struct tty_struct *tty, struct file *file,
- unsigned int set, unsigned int clear)
-{
- SLMP_INFO *info = tty->driver_data;
- unsigned long flags;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s tiocmset(%x,%x)\n",
- __FILE__,__LINE__,info->device_name, set, clear);
-
- if (set & TIOCM_RTS)
- info->serial_signals |= SerialSignal_RTS;
- if (set & TIOCM_DTR)
- info->serial_signals |= SerialSignal_DTR;
- if (clear & TIOCM_RTS)
- info->serial_signals &= ~SerialSignal_RTS;
- if (clear & TIOCM_DTR)
- info->serial_signals &= ~SerialSignal_DTR;
-
- spin_lock_irqsave(&info->lock,flags);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- return 0;
-}
-
-static int carrier_raised(struct tty_port *port)
-{
- SLMP_INFO *info = container_of(port, SLMP_INFO, port);
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
-}
-
-static void dtr_rts(struct tty_port *port, int on)
-{
- SLMP_INFO *info = container_of(port, SLMP_INFO, port);
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- if (on)
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- else
- info->serial_signals &= ~(SerialSignal_RTS + SerialSignal_DTR);
- set_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-}
-
-/* Block the current process until the specified port is ready to open.
- */
-static int block_til_ready(struct tty_struct *tty, struct file *filp,
- SLMP_INFO *info)
-{
- DECLARE_WAITQUEUE(wait, current);
- int retval;
- bool do_clocal = false;
- bool extra_count = false;
- unsigned long flags;
- int cd;
- struct tty_port *port = &info->port;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s block_til_ready()\n",
- __FILE__,__LINE__, tty->driver->name );
-
- if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
- /* nonblock mode is set or port is not enabled */
- /* just verify that callout device is not active */
- port->flags |= ASYNC_NORMAL_ACTIVE;
- return 0;
- }
-
- if (tty->termios->c_cflag & CLOCAL)
- do_clocal = true;
-
- /* Wait for carrier detect and the line to become
- * free (i.e., not in use by the callout). While we are in
- * this loop, port->count is dropped by one, so that
- * close() knows when to free things. We restore it upon
- * exit, either normal or abnormal.
- */
-
- retval = 0;
- add_wait_queue(&port->open_wait, &wait);
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s block_til_ready() before block, count=%d\n",
- __FILE__,__LINE__, tty->driver->name, port->count );
-
- spin_lock_irqsave(&info->lock, flags);
- if (!tty_hung_up_p(filp)) {
- extra_count = true;
- port->count--;
- }
- spin_unlock_irqrestore(&info->lock, flags);
- port->blocked_open++;
-
- while (1) {
- if (tty->termios->c_cflag & CBAUD)
- tty_port_raise_dtr_rts(port);
-
- set_current_state(TASK_INTERRUPTIBLE);
-
- if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)){
- retval = (port->flags & ASYNC_HUP_NOTIFY) ?
- -EAGAIN : -ERESTARTSYS;
- break;
- }
-
- cd = tty_port_carrier_raised(port);
-
- if (!(port->flags & ASYNC_CLOSING) && (do_clocal || cd))
- break;
-
- if (signal_pending(current)) {
- retval = -ERESTARTSYS;
- break;
- }
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s block_til_ready() count=%d\n",
- __FILE__,__LINE__, tty->driver->name, port->count );
-
- tty_unlock();
- schedule();
- tty_lock();
- }
-
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&port->open_wait, &wait);
-
- if (extra_count)
- port->count++;
- port->blocked_open--;
-
- if (debug_level >= DEBUG_LEVEL_INFO)
- printk("%s(%d):%s block_til_ready() after, count=%d\n",
- __FILE__,__LINE__, tty->driver->name, port->count );
-
- if (!retval)
- port->flags |= ASYNC_NORMAL_ACTIVE;
-
- return retval;
-}
-
-static int alloc_dma_bufs(SLMP_INFO *info)
-{
- unsigned short BuffersPerFrame;
- unsigned short BufferCount;
-
- // Force allocation to start at 64K boundary for each port.
- // This is necessary because *all* buffer descriptors for a port
- // *must* be in the same 64K block. All descriptors on a port
- // share a common 'base' address (upper 8 bits of 24 bits) programmed
- // into the CBP register.
- info->port_array[0]->last_mem_alloc = (SCA_MEM_SIZE/4) * info->port_num;
-
- /* Calculate the number of DMA buffers necessary to hold the */
- /* largest allowable frame size. Note: If the max frame size is */
- /* not an even multiple of the DMA buffer size then we need to */
- /* round the buffer count per frame up one. */
-
- BuffersPerFrame = (unsigned short)(info->max_frame_size/SCABUFSIZE);
- if ( info->max_frame_size % SCABUFSIZE )
- BuffersPerFrame++;
-
- /* calculate total number of data buffers (SCABUFSIZE) possible
- * in one ports memory (SCA_MEM_SIZE/4) after allocating memory
- * for the descriptor list (BUFFERLISTSIZE).
- */
- BufferCount = (SCA_MEM_SIZE/4 - BUFFERLISTSIZE)/SCABUFSIZE;
-
- /* limit number of buffers to maximum amount of descriptors */
- if (BufferCount > BUFFERLISTSIZE/sizeof(SCADESC))
- BufferCount = BUFFERLISTSIZE/sizeof(SCADESC);
-
- /* use enough buffers to transmit one max size frame */
- info->tx_buf_count = BuffersPerFrame + 1;
-
- /* never use more than half the available buffers for transmit */
- if (info->tx_buf_count > (BufferCount/2))
- info->tx_buf_count = BufferCount/2;
-
- if (info->tx_buf_count > SCAMAXDESC)
- info->tx_buf_count = SCAMAXDESC;
-
- /* use remaining buffers for receive */
- info->rx_buf_count = BufferCount - info->tx_buf_count;
-
- if (info->rx_buf_count > SCAMAXDESC)
- info->rx_buf_count = SCAMAXDESC;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk("%s(%d):%s Allocating %d TX and %d RX DMA buffers.\n",
- __FILE__,__LINE__, info->device_name,
- info->tx_buf_count,info->rx_buf_count);
-
- if ( alloc_buf_list( info ) < 0 ||
- alloc_frame_bufs(info,
- info->rx_buf_list,
- info->rx_buf_list_ex,
- info->rx_buf_count) < 0 ||
- alloc_frame_bufs(info,
- info->tx_buf_list,
- info->tx_buf_list_ex,
- info->tx_buf_count) < 0 ||
- alloc_tmp_rx_buf(info) < 0 ) {
- printk("%s(%d):%s Can't allocate DMA buffer memory\n",
- __FILE__,__LINE__, info->device_name);
- return -ENOMEM;
- }
-
- rx_reset_buffers( info );
-
- return 0;
-}
-
-/* Allocate DMA buffers for the transmit and receive descriptor lists.
- */
-static int alloc_buf_list(SLMP_INFO *info)
-{
- unsigned int i;
-
- /* build list in adapter shared memory */
- info->buffer_list = info->memory_base + info->port_array[0]->last_mem_alloc;
- info->buffer_list_phys = info->port_array[0]->last_mem_alloc;
- info->port_array[0]->last_mem_alloc += BUFFERLISTSIZE;
-
- memset(info->buffer_list, 0, BUFFERLISTSIZE);
-
- /* Save virtual address pointers to the receive and */
- /* transmit buffer lists. (Receive 1st). These pointers will */
- /* be used by the processor to access the lists. */
- info->rx_buf_list = (SCADESC *)info->buffer_list;
-
- info->tx_buf_list = (SCADESC *)info->buffer_list;
- info->tx_buf_list += info->rx_buf_count;
-
- /* Build links for circular buffer entry lists (tx and rx)
- *
- * Note: links are physical addresses read by the SCA device
- * to determine the next buffer entry to use.
- */
-
- for ( i = 0; i < info->rx_buf_count; i++ ) {
- /* calculate and store physical address of this buffer entry */
- info->rx_buf_list_ex[i].phys_entry =
- info->buffer_list_phys + (i * sizeof(SCABUFSIZE));
-
- /* calculate and store physical address of */
- /* next entry in cirular list of entries */
- info->rx_buf_list[i].next = info->buffer_list_phys;
- if ( i < info->rx_buf_count - 1 )
- info->rx_buf_list[i].next += (i + 1) * sizeof(SCADESC);
-
- info->rx_buf_list[i].length = SCABUFSIZE;
- }
-
- for ( i = 0; i < info->tx_buf_count; i++ ) {
- /* calculate and store physical address of this buffer entry */
- info->tx_buf_list_ex[i].phys_entry = info->buffer_list_phys +
- ((info->rx_buf_count + i) * sizeof(SCADESC));
-
- /* calculate and store physical address of */
- /* next entry in cirular list of entries */
-
- info->tx_buf_list[i].next = info->buffer_list_phys +
- info->rx_buf_count * sizeof(SCADESC);
-
- if ( i < info->tx_buf_count - 1 )
- info->tx_buf_list[i].next += (i + 1) * sizeof(SCADESC);
- }
-
- return 0;
-}
-
-/* Allocate the frame DMA buffers used by the specified buffer list.
- */
-static int alloc_frame_bufs(SLMP_INFO *info, SCADESC *buf_list,SCADESC_EX *buf_list_ex,int count)
-{
- int i;
- unsigned long phys_addr;
-
- for ( i = 0; i < count; i++ ) {
- buf_list_ex[i].virt_addr = info->memory_base + info->port_array[0]->last_mem_alloc;
- phys_addr = info->port_array[0]->last_mem_alloc;
- info->port_array[0]->last_mem_alloc += SCABUFSIZE;
-
- buf_list[i].buf_ptr = (unsigned short)phys_addr;
- buf_list[i].buf_base = (unsigned char)(phys_addr >> 16);
- }
-
- return 0;
-}
-
-static void free_dma_bufs(SLMP_INFO *info)
-{
- info->buffer_list = NULL;
- info->rx_buf_list = NULL;
- info->tx_buf_list = NULL;
-}
-
-/* allocate buffer large enough to hold max_frame_size.
- * This buffer is used to pass an assembled frame to the line discipline.
- */
-static int alloc_tmp_rx_buf(SLMP_INFO *info)
-{
- info->tmp_rx_buf = kmalloc(info->max_frame_size, GFP_KERNEL);
- if (info->tmp_rx_buf == NULL)
- return -ENOMEM;
- return 0;
-}
-
-static void free_tmp_rx_buf(SLMP_INFO *info)
-{
- kfree(info->tmp_rx_buf);
- info->tmp_rx_buf = NULL;
-}
-
-static int claim_resources(SLMP_INFO *info)
-{
- if (request_mem_region(info->phys_memory_base,SCA_MEM_SIZE,"synclinkmp") == NULL) {
- printk( "%s(%d):%s mem addr conflict, Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_memory_base);
- info->init_error = DiagStatus_AddressConflict;
- goto errout;
- }
- else
- info->shared_mem_requested = true;
-
- if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclinkmp") == NULL) {
- printk( "%s(%d):%s lcr mem addr conflict, Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_lcr_base);
- info->init_error = DiagStatus_AddressConflict;
- goto errout;
- }
- else
- info->lcr_mem_requested = true;
-
- if (request_mem_region(info->phys_sca_base + info->sca_offset,SCA_BASE_SIZE,"synclinkmp") == NULL) {
- printk( "%s(%d):%s sca mem addr conflict, Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_sca_base);
- info->init_error = DiagStatus_AddressConflict;
- goto errout;
- }
- else
- info->sca_base_requested = true;
-
- if (request_mem_region(info->phys_statctrl_base + info->statctrl_offset,SCA_REG_SIZE,"synclinkmp") == NULL) {
- printk( "%s(%d):%s stat/ctrl mem addr conflict, Addr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_statctrl_base);
- info->init_error = DiagStatus_AddressConflict;
- goto errout;
- }
- else
- info->sca_statctrl_requested = true;
-
- info->memory_base = ioremap_nocache(info->phys_memory_base,
- SCA_MEM_SIZE);
- if (!info->memory_base) {
- printk( "%s(%d):%s Cant map shared memory, MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_memory_base );
- info->init_error = DiagStatus_CantAssignPciResources;
- goto errout;
- }
-
- info->lcr_base = ioremap_nocache(info->phys_lcr_base, PAGE_SIZE);
- if (!info->lcr_base) {
- printk( "%s(%d):%s Cant map LCR memory, MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_lcr_base );
- info->init_error = DiagStatus_CantAssignPciResources;
- goto errout;
- }
- info->lcr_base += info->lcr_offset;
-
- info->sca_base = ioremap_nocache(info->phys_sca_base, PAGE_SIZE);
- if (!info->sca_base) {
- printk( "%s(%d):%s Cant map SCA memory, MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_sca_base );
- info->init_error = DiagStatus_CantAssignPciResources;
- goto errout;
- }
- info->sca_base += info->sca_offset;
-
- info->statctrl_base = ioremap_nocache(info->phys_statctrl_base,
- PAGE_SIZE);
- if (!info->statctrl_base) {
- printk( "%s(%d):%s Cant map SCA Status/Control memory, MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_statctrl_base );
- info->init_error = DiagStatus_CantAssignPciResources;
- goto errout;
- }
- info->statctrl_base += info->statctrl_offset;
-
- if ( !memory_test(info) ) {
- printk( "%s(%d):Shared Memory Test failed for device %s MemAddr=%08X\n",
- __FILE__,__LINE__,info->device_name, info->phys_memory_base );
- info->init_error = DiagStatus_MemoryError;
- goto errout;
- }
-
- return 0;
-
-errout:
- release_resources( info );
- return -ENODEV;
-}
-
-static void release_resources(SLMP_INFO *info)
-{
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s release_resources() entry\n",
- __FILE__,__LINE__,info->device_name );
-
- if ( info->irq_requested ) {
- free_irq(info->irq_level, info);
- info->irq_requested = false;
- }
-
- if ( info->shared_mem_requested ) {
- release_mem_region(info->phys_memory_base,SCA_MEM_SIZE);
- info->shared_mem_requested = false;
- }
- if ( info->lcr_mem_requested ) {
- release_mem_region(info->phys_lcr_base + info->lcr_offset,128);
- info->lcr_mem_requested = false;
- }
- if ( info->sca_base_requested ) {
- release_mem_region(info->phys_sca_base + info->sca_offset,SCA_BASE_SIZE);
- info->sca_base_requested = false;
- }
- if ( info->sca_statctrl_requested ) {
- release_mem_region(info->phys_statctrl_base + info->statctrl_offset,SCA_REG_SIZE);
- info->sca_statctrl_requested = false;
- }
-
- if (info->memory_base){
- iounmap(info->memory_base);
- info->memory_base = NULL;
- }
-
- if (info->sca_base) {
- iounmap(info->sca_base - info->sca_offset);
- info->sca_base=NULL;
- }
-
- if (info->statctrl_base) {
- iounmap(info->statctrl_base - info->statctrl_offset);
- info->statctrl_base=NULL;
- }
-
- if (info->lcr_base){
- iounmap(info->lcr_base - info->lcr_offset);
- info->lcr_base = NULL;
- }
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s release_resources() exit\n",
- __FILE__,__LINE__,info->device_name );
-}
-
-/* Add the specified device instance data structure to the
- * global linked list of devices and increment the device count.
- */
-static void add_device(SLMP_INFO *info)
-{
- info->next_device = NULL;
- info->line = synclinkmp_device_count;
- sprintf(info->device_name,"ttySLM%dp%d",info->adapter_num,info->port_num);
-
- if (info->line < MAX_DEVICES) {
- if (maxframe[info->line])
- info->max_frame_size = maxframe[info->line];
- }
-
- synclinkmp_device_count++;
-
- if ( !synclinkmp_device_list )
- synclinkmp_device_list = info;
- else {
- SLMP_INFO *current_dev = synclinkmp_device_list;
- while( current_dev->next_device )
- current_dev = current_dev->next_device;
- current_dev->next_device = info;
- }
-
- if ( info->max_frame_size < 4096 )
- info->max_frame_size = 4096;
- else if ( info->max_frame_size > 65535 )
- info->max_frame_size = 65535;
-
- printk( "SyncLink MultiPort %s: "
- "Mem=(%08x %08X %08x %08X) IRQ=%d MaxFrameSize=%u\n",
- info->device_name,
- info->phys_sca_base,
- info->phys_memory_base,
- info->phys_statctrl_base,
- info->phys_lcr_base,
- info->irq_level,
- info->max_frame_size );
-
-#if SYNCLINK_GENERIC_HDLC
- hdlcdev_init(info);
-#endif
-}
-
-static const struct tty_port_operations port_ops = {
- .carrier_raised = carrier_raised,
- .dtr_rts = dtr_rts,
-};
-
-/* Allocate and initialize a device instance structure
- *
- * Return Value: pointer to SLMP_INFO if success, otherwise NULL
- */
-static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
-{
- SLMP_INFO *info;
-
- info = kzalloc(sizeof(SLMP_INFO),
- GFP_KERNEL);
-
- if (!info) {
- printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n",
- __FILE__,__LINE__, adapter_num, port_num);
- } else {
- tty_port_init(&info->port);
- info->port.ops = &port_ops;
- info->magic = MGSL_MAGIC;
- INIT_WORK(&info->task, bh_handler);
- info->max_frame_size = 4096;
- info->port.close_delay = 5*HZ/10;
- info->port.closing_wait = 30*HZ;
- init_waitqueue_head(&info->status_event_wait_q);
- init_waitqueue_head(&info->event_wait_q);
- spin_lock_init(&info->netlock);
- memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));
- info->idle_mode = HDLC_TXIDLE_FLAGS;
- info->adapter_num = adapter_num;
- info->port_num = port_num;
-
- /* Copy configuration info to device instance data */
- info->irq_level = pdev->irq;
- info->phys_lcr_base = pci_resource_start(pdev,0);
- info->phys_sca_base = pci_resource_start(pdev,2);
- info->phys_memory_base = pci_resource_start(pdev,3);
- info->phys_statctrl_base = pci_resource_start(pdev,4);
-
- /* Because veremap only works on page boundaries we must map
- * a larger area than is actually implemented for the LCR
- * memory range. We map a full page starting at the page boundary.
- */
- info->lcr_offset = info->phys_lcr_base & (PAGE_SIZE-1);
- info->phys_lcr_base &= ~(PAGE_SIZE-1);
-
- info->sca_offset = info->phys_sca_base & (PAGE_SIZE-1);
- info->phys_sca_base &= ~(PAGE_SIZE-1);
-
- info->statctrl_offset = info->phys_statctrl_base & (PAGE_SIZE-1);
- info->phys_statctrl_base &= ~(PAGE_SIZE-1);
-
- info->bus_type = MGSL_BUS_TYPE_PCI;
- info->irq_flags = IRQF_SHARED;
-
- setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info);
- setup_timer(&info->status_timer, status_timeout,
- (unsigned long)info);
-
- /* Store the PCI9050 misc control register value because a flaw
- * in the PCI9050 prevents LCR registers from being read if
- * BIOS assigns an LCR base address with bit 7 set.
- *
- * Only the misc control register is accessed for which only
- * write access is needed, so set an initial value and change
- * bits to the device instance data as we write the value
- * to the actual misc control register.
- */
- info->misc_ctrl_value = 0x087e4546;
-
- /* initial port state is unknown - if startup errors
- * occur, init_error will be set to indicate the
- * problem. Once the port is fully initialized,
- * this value will be set to 0 to indicate the
- * port is available.
- */
- info->init_error = -1;
- }
-
- return info;
-}
-
-static void device_init(int adapter_num, struct pci_dev *pdev)
-{
- SLMP_INFO *port_array[SCA_MAX_PORTS];
- int port;
-
- /* allocate device instances for up to SCA_MAX_PORTS devices */
- for ( port = 0; port < SCA_MAX_PORTS; ++port ) {
- port_array[port] = alloc_dev(adapter_num,port,pdev);
- if( port_array[port] == NULL ) {
- for ( --port; port >= 0; --port )
- kfree(port_array[port]);
- return;
- }
- }
-
- /* give copy of port_array to all ports and add to device list */
- for ( port = 0; port < SCA_MAX_PORTS; ++port ) {
- memcpy(port_array[port]->port_array,port_array,sizeof(port_array));
- add_device( port_array[port] );
- spin_lock_init(&port_array[port]->lock);
- }
-
- /* Allocate and claim adapter resources */
- if ( !claim_resources(port_array[0]) ) {
-
- alloc_dma_bufs(port_array[0]);
-
- /* copy resource information from first port to others */
- for ( port = 1; port < SCA_MAX_PORTS; ++port ) {
- port_array[port]->lock = port_array[0]->lock;
- port_array[port]->irq_level = port_array[0]->irq_level;
- port_array[port]->memory_base = port_array[0]->memory_base;
- port_array[port]->sca_base = port_array[0]->sca_base;
- port_array[port]->statctrl_base = port_array[0]->statctrl_base;
- port_array[port]->lcr_base = port_array[0]->lcr_base;
- alloc_dma_bufs(port_array[port]);
- }
-
- if ( request_irq(port_array[0]->irq_level,
- synclinkmp_interrupt,
- port_array[0]->irq_flags,
- port_array[0]->device_name,
- port_array[0]) < 0 ) {
- printk( "%s(%d):%s Cant request interrupt, IRQ=%d\n",
- __FILE__,__LINE__,
- port_array[0]->device_name,
- port_array[0]->irq_level );
- }
- else {
- port_array[0]->irq_requested = true;
- adapter_test(port_array[0]);
- }
- }
-}
-
-static const struct tty_operations ops = {
- .open = open,
- .close = close,
- .write = write,
- .put_char = put_char,
- .flush_chars = flush_chars,
- .write_room = write_room,
- .chars_in_buffer = chars_in_buffer,
- .flush_buffer = flush_buffer,
- .ioctl = ioctl,
- .throttle = throttle,
- .unthrottle = unthrottle,
- .send_xchar = send_xchar,
- .break_ctl = set_break,
- .wait_until_sent = wait_until_sent,
- .set_termios = set_termios,
- .stop = tx_hold,
- .start = tx_release,
- .hangup = hangup,
- .tiocmget = tiocmget,
- .tiocmset = tiocmset,
- .get_icount = get_icount,
- .proc_fops = &synclinkmp_proc_fops,
-};
-
-
-static void synclinkmp_cleanup(void)
-{
- int rc;
- SLMP_INFO *info;
- SLMP_INFO *tmp;
-
- printk("Unloading %s %s\n", driver_name, driver_version);
-
- if (serial_driver) {
- if ((rc = tty_unregister_driver(serial_driver)))
- printk("%s(%d) failed to unregister tty driver err=%d\n",
- __FILE__,__LINE__,rc);
- put_tty_driver(serial_driver);
- }
-
- /* reset devices */
- info = synclinkmp_device_list;
- while(info) {
- reset_port(info);
- info = info->next_device;
- }
-
- /* release devices */
- info = synclinkmp_device_list;
- while(info) {
-#if SYNCLINK_GENERIC_HDLC
- hdlcdev_exit(info);
-#endif
- free_dma_bufs(info);
- free_tmp_rx_buf(info);
- if ( info->port_num == 0 ) {
- if (info->sca_base)
- write_reg(info, LPR, 1); /* set low power mode */
- release_resources(info);
- }
- tmp = info;
- info = info->next_device;
- kfree(tmp);
- }
-
- pci_unregister_driver(&synclinkmp_pci_driver);
-}
-
-/* Driver initialization entry point.
- */
-
-static int __init synclinkmp_init(void)
-{
- int rc;
-
- if (break_on_load) {
- synclinkmp_get_text_ptr();
- BREAKPOINT();
- }
-
- printk("%s %s\n", driver_name, driver_version);
-
- if ((rc = pci_register_driver(&synclinkmp_pci_driver)) < 0) {
- printk("%s:failed to register PCI driver, error=%d\n",__FILE__,rc);
- return rc;
- }
-
- serial_driver = alloc_tty_driver(128);
- if (!serial_driver) {
- rc = -ENOMEM;
- goto error;
- }
-
- /* Initialize the tty_driver structure */
-
- serial_driver->owner = THIS_MODULE;
- serial_driver->driver_name = "synclinkmp";
- serial_driver->name = "ttySLM";
- serial_driver->major = ttymajor;
- serial_driver->minor_start = 64;
- serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
- serial_driver->subtype = SERIAL_TYPE_NORMAL;
- serial_driver->init_termios = tty_std_termios;
- serial_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->init_termios.c_ispeed = 9600;
- serial_driver->init_termios.c_ospeed = 9600;
- serial_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(serial_driver, &ops);
- if ((rc = tty_register_driver(serial_driver)) < 0) {
- printk("%s(%d):Couldn't register serial driver\n",
- __FILE__,__LINE__);
- put_tty_driver(serial_driver);
- serial_driver = NULL;
- goto error;
- }
-
- printk("%s %s, tty major#%d\n",
- driver_name, driver_version,
- serial_driver->major);
-
- return 0;
-
-error:
- synclinkmp_cleanup();
- return rc;
-}
-
-static void __exit synclinkmp_exit(void)
-{
- synclinkmp_cleanup();
-}
-
-module_init(synclinkmp_init);
-module_exit(synclinkmp_exit);
-
-/* Set the port for internal loopback mode.
- * The TxCLK and RxCLK signals are generated from the BRG and
- * the TxD is looped back to the RxD internally.
- */
-static void enable_loopback(SLMP_INFO *info, int enable)
-{
- if (enable) {
- /* MD2 (Mode Register 2)
- * 01..00 CNCT<1..0> Channel Connection 11=Local Loopback
- */
- write_reg(info, MD2, (unsigned char)(read_reg(info, MD2) | (BIT1 + BIT0)));
-
- /* degate external TxC clock source */
- info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
- write_control_reg(info);
-
- /* RXS/TXS (Rx/Tx clock source)
- * 07 Reserved, must be 0
- * 06..04 Clock Source, 100=BRG
- * 03..00 Clock Divisor, 0000=1
- */
- write_reg(info, RXS, 0x40);
- write_reg(info, TXS, 0x40);
-
- } else {
- /* MD2 (Mode Register 2)
- * 01..00 CNCT<1..0> Channel connection, 0=normal
- */
- write_reg(info, MD2, (unsigned char)(read_reg(info, MD2) & ~(BIT1 + BIT0)));
-
- /* RXS/TXS (Rx/Tx clock source)
- * 07 Reserved, must be 0
- * 06..04 Clock Source, 000=RxC/TxC Pin
- * 03..00 Clock Divisor, 0000=1
- */
- write_reg(info, RXS, 0x00);
- write_reg(info, TXS, 0x00);
- }
-
- /* set LinkSpeed if available, otherwise default to 2Mbps */
- if (info->params.clock_speed)
- set_rate(info, info->params.clock_speed);
- else
- set_rate(info, 3686400);
-}
-
-/* Set the baud rate register to the desired speed
- *
- * data_rate data rate of clock in bits per second
- * A data rate of 0 disables the AUX clock.
- */
-static void set_rate( SLMP_INFO *info, u32 data_rate )
-{
- u32 TMCValue;
- unsigned char BRValue;
- u32 Divisor=0;
-
- /* fBRG = fCLK/(TMC * 2^BR)
- */
- if (data_rate != 0) {
- Divisor = 14745600/data_rate;
- if (!Divisor)
- Divisor = 1;
-
- TMCValue = Divisor;
-
- BRValue = 0;
- if (TMCValue != 1 && TMCValue != 2) {
- /* BRValue of 0 provides 50/50 duty cycle *only* when
- * TMCValue is 1 or 2. BRValue of 1 to 9 always provides
- * 50/50 duty cycle.
- */
- BRValue = 1;
- TMCValue >>= 1;
- }
-
- /* while TMCValue is too big for TMC register, divide
- * by 2 and increment BR exponent.
- */
- for(; TMCValue > 256 && BRValue < 10; BRValue++)
- TMCValue >>= 1;
-
- write_reg(info, TXS,
- (unsigned char)((read_reg(info, TXS) & 0xf0) | BRValue));
- write_reg(info, RXS,
- (unsigned char)((read_reg(info, RXS) & 0xf0) | BRValue));
- write_reg(info, TMC, (unsigned char)TMCValue);
- }
- else {
- write_reg(info, TXS,0);
- write_reg(info, RXS,0);
- write_reg(info, TMC, 0);
- }
-}
-
-/* Disable receiver
- */
-static void rx_stop(SLMP_INFO *info)
-{
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):%s rx_stop()\n",
- __FILE__,__LINE__, info->device_name );
-
- write_reg(info, CMD, RXRESET);
-
- info->ie0_value &= ~RXRDYE;
- write_reg(info, IE0, info->ie0_value); /* disable Rx data interrupts */
-
- write_reg(info, RXDMA + DSR, 0); /* disable Rx DMA */
- write_reg(info, RXDMA + DCMD, SWABORT); /* reset/init Rx DMA */
- write_reg(info, RXDMA + DIR, 0); /* disable Rx DMA interrupts */
-
- info->rx_enabled = false;
- info->rx_overflow = false;
-}
-
-/* enable the receiver
- */
-static void rx_start(SLMP_INFO *info)
-{
- int i;
-
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):%s rx_start()\n",
- __FILE__,__LINE__, info->device_name );
-
- write_reg(info, CMD, RXRESET);
-
- if ( info->params.mode == MGSL_MODE_HDLC ) {
- /* HDLC, disabe IRQ on rxdata */
- info->ie0_value &= ~RXRDYE;
- write_reg(info, IE0, info->ie0_value);
-
- /* Reset all Rx DMA buffers and program rx dma */
- write_reg(info, RXDMA + DSR, 0); /* disable Rx DMA */
- write_reg(info, RXDMA + DCMD, SWABORT); /* reset/init Rx DMA */
-
- for (i = 0; i < info->rx_buf_count; i++) {
- info->rx_buf_list[i].status = 0xff;
-
- // throttle to 4 shared memory writes at a time to prevent
- // hogging local bus (keep latency time for DMA requests low).
- if (!(i % 4))
- read_status_reg(info);
- }
- info->current_rx_buf = 0;
-
- /* set current/1st descriptor address */
- write_reg16(info, RXDMA + CDA,
- info->rx_buf_list_ex[0].phys_entry);
-
- /* set new last rx descriptor address */
- write_reg16(info, RXDMA + EDA,
- info->rx_buf_list_ex[info->rx_buf_count - 1].phys_entry);
-
- /* set buffer length (shared by all rx dma data buffers) */
- write_reg16(info, RXDMA + BFL, SCABUFSIZE);
-
- write_reg(info, RXDMA + DIR, 0x60); /* enable Rx DMA interrupts (EOM/BOF) */
- write_reg(info, RXDMA + DSR, 0xf2); /* clear Rx DMA IRQs, enable Rx DMA */
- } else {
- /* async, enable IRQ on rxdata */
- info->ie0_value |= RXRDYE;
- write_reg(info, IE0, info->ie0_value);
- }
-
- write_reg(info, CMD, RXENABLE);
-
- info->rx_overflow = false;
- info->rx_enabled = true;
-}
-
-/* Enable the transmitter and send a transmit frame if
- * one is loaded in the DMA buffers.
- */
-static void tx_start(SLMP_INFO *info)
-{
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):%s tx_start() tx_count=%d\n",
- __FILE__,__LINE__, info->device_name,info->tx_count );
-
- if (!info->tx_enabled ) {
- write_reg(info, CMD, TXRESET);
- write_reg(info, CMD, TXENABLE);
- info->tx_enabled = true;
- }
-
- if ( info->tx_count ) {
-
- /* If auto RTS enabled and RTS is inactive, then assert */
- /* RTS and set a flag indicating that the driver should */
- /* negate RTS when the transmission completes. */
-
- info->drop_rts_on_tx_done = false;
-
- if (info->params.mode != MGSL_MODE_ASYNC) {
-
- if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) {
- get_signals( info );
- if ( !(info->serial_signals & SerialSignal_RTS) ) {
- info->serial_signals |= SerialSignal_RTS;
- set_signals( info );
- info->drop_rts_on_tx_done = true;
- }
- }
-
- write_reg16(info, TRC0,
- (unsigned short)(((tx_negate_fifo_level-1)<<8) + tx_active_fifo_level));
-
- write_reg(info, TXDMA + DSR, 0); /* disable DMA channel */
- write_reg(info, TXDMA + DCMD, SWABORT); /* reset/init DMA channel */
-
- /* set TX CDA (current descriptor address) */
- write_reg16(info, TXDMA + CDA,
- info->tx_buf_list_ex[0].phys_entry);
-
- /* set TX EDA (last descriptor address) */
- write_reg16(info, TXDMA + EDA,
- info->tx_buf_list_ex[info->last_tx_buf].phys_entry);
-
- /* enable underrun IRQ */
- info->ie1_value &= ~IDLE;
- info->ie1_value |= UDRN;
- write_reg(info, IE1, info->ie1_value);
- write_reg(info, SR1, (unsigned char)(IDLE + UDRN));
-
- write_reg(info, TXDMA + DIR, 0x40); /* enable Tx DMA interrupts (EOM) */
- write_reg(info, TXDMA + DSR, 0xf2); /* clear Tx DMA IRQs, enable Tx DMA */
-
- mod_timer(&info->tx_timer, jiffies +
- msecs_to_jiffies(5000));
- }
- else {
- tx_load_fifo(info);
- /* async, enable IRQ on txdata */
- info->ie0_value |= TXRDYE;
- write_reg(info, IE0, info->ie0_value);
- }
-
- info->tx_active = true;
- }
-}
-
-/* stop the transmitter and DMA
- */
-static void tx_stop( SLMP_INFO *info )
-{
- if (debug_level >= DEBUG_LEVEL_ISR)
- printk("%s(%d):%s tx_stop()\n",
- __FILE__,__LINE__, info->device_name );
-
- del_timer(&info->tx_timer);
-
- write_reg(info, TXDMA + DSR, 0); /* disable DMA channel */
- write_reg(info, TXDMA + DCMD, SWABORT); /* reset/init DMA channel */
-
- write_reg(info, CMD, TXRESET);
-
- info->ie1_value &= ~(UDRN + IDLE);
- write_reg(info, IE1, info->ie1_value); /* disable tx status interrupts */
- write_reg(info, SR1, (unsigned char)(IDLE + UDRN)); /* clear pending */
-
- info->ie0_value &= ~TXRDYE;
- write_reg(info, IE0, info->ie0_value); /* disable tx data interrupts */
-
- info->tx_enabled = false;
- info->tx_active = false;
-}
-
-/* Fill the transmit FIFO until the FIFO is full or
- * there is no more data to load.
- */
-static void tx_load_fifo(SLMP_INFO *info)
-{
- u8 TwoBytes[2];
-
- /* do nothing is now tx data available and no XON/XOFF pending */
-
- if ( !info->tx_count && !info->x_char )
- return;
-
- /* load the Transmit FIFO until FIFOs full or all data sent */
-
- while( info->tx_count && (read_reg(info,SR0) & BIT1) ) {
-
- /* there is more space in the transmit FIFO and */
- /* there is more data in transmit buffer */
-
- if ( (info->tx_count > 1) && !info->x_char ) {
- /* write 16-bits */
- TwoBytes[0] = info->tx_buf[info->tx_get++];
- if (info->tx_get >= info->max_frame_size)
- info->tx_get -= info->max_frame_size;
- TwoBytes[1] = info->tx_buf[info->tx_get++];
- if (info->tx_get >= info->max_frame_size)
- info->tx_get -= info->max_frame_size;
-
- write_reg16(info, TRB, *((u16 *)TwoBytes));
-
- info->tx_count -= 2;
- info->icount.tx += 2;
- } else {
- /* only 1 byte left to transmit or 1 FIFO slot left */
-
- if (info->x_char) {
- /* transmit pending high priority char */
- write_reg(info, TRB, info->x_char);
- info->x_char = 0;
- } else {
- write_reg(info, TRB, info->tx_buf[info->tx_get++]);
- if (info->tx_get >= info->max_frame_size)
- info->tx_get -= info->max_frame_size;
- info->tx_count--;
- }
- info->icount.tx++;
- }
- }
-}
-
-/* Reset a port to a known state
- */
-static void reset_port(SLMP_INFO *info)
-{
- if (info->sca_base) {
-
- tx_stop(info);
- rx_stop(info);
-
- info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
- set_signals(info);
-
- /* disable all port interrupts */
- info->ie0_value = 0;
- info->ie1_value = 0;
- info->ie2_value = 0;
- write_reg(info, IE0, info->ie0_value);
- write_reg(info, IE1, info->ie1_value);
- write_reg(info, IE2, info->ie2_value);
-
- write_reg(info, CMD, CHRESET);
- }
-}
-
-/* Reset all the ports to a known state.
- */
-static void reset_adapter(SLMP_INFO *info)
-{
- int i;
-
- for ( i=0; i < SCA_MAX_PORTS; ++i) {
- if (info->port_array[i])
- reset_port(info->port_array[i]);
- }
-}
-
-/* Program port for asynchronous communications.
- */
-static void async_mode(SLMP_INFO *info)
-{
-
- unsigned char RegValue;
-
- tx_stop(info);
- rx_stop(info);
-
- /* MD0, Mode Register 0
- *
- * 07..05 PRCTL<2..0>, Protocol Mode, 000=async
- * 04 AUTO, Auto-enable (RTS/CTS/DCD)
- * 03 Reserved, must be 0
- * 02 CRCCC, CRC Calculation, 0=disabled
- * 01..00 STOP<1..0> Stop bits (00=1,10=2)
- *
- * 0000 0000
- */
- RegValue = 0x00;
- if (info->params.stop_bits != 1)
- RegValue |= BIT1;
- write_reg(info, MD0, RegValue);
-
- /* MD1, Mode Register 1
- *
- * 07..06 BRATE<1..0>, bit rate, 00=1/1 01=1/16 10=1/32 11=1/64
- * 05..04 TXCHR<1..0>, tx char size, 00=8 bits,01=7,10=6,11=5
- * 03..02 RXCHR<1..0>, rx char size
- * 01..00 PMPM<1..0>, Parity mode, 00=none 10=even 11=odd
- *
- * 0100 0000
- */
- RegValue = 0x40;
- switch (info->params.data_bits) {
- case 7: RegValue |= BIT4 + BIT2; break;
- case 6: RegValue |= BIT5 + BIT3; break;
- case 5: RegValue |= BIT5 + BIT4 + BIT3 + BIT2; break;
- }
- if (info->params.parity != ASYNC_PARITY_NONE) {
- RegValue |= BIT1;
- if (info->params.parity == ASYNC_PARITY_ODD)
- RegValue |= BIT0;
- }
- write_reg(info, MD1, RegValue);
-
- /* MD2, Mode Register 2
- *
- * 07..02 Reserved, must be 0
- * 01..00 CNCT<1..0> Channel connection, 00=normal 11=local loopback
- *
- * 0000 0000
- */
- RegValue = 0x00;
- if (info->params.loopback)
- RegValue |= (BIT1 + BIT0);
- write_reg(info, MD2, RegValue);
-
- /* RXS, Receive clock source
- *
- * 07 Reserved, must be 0
- * 06..04 RXCS<2..0>, clock source, 000=RxC Pin, 100=BRG, 110=DPLL
- * 03..00 RXBR<3..0>, rate divisor, 0000=1
- */
- RegValue=BIT6;
- write_reg(info, RXS, RegValue);
-
- /* TXS, Transmit clock source
- *
- * 07 Reserved, must be 0
- * 06..04 RXCS<2..0>, clock source, 000=TxC Pin, 100=BRG, 110=Receive Clock
- * 03..00 RXBR<3..0>, rate divisor, 0000=1
- */
- RegValue=BIT6;
- write_reg(info, TXS, RegValue);
-
- /* Control Register
- *
- * 6,4,2,0 CLKSEL<3..0>, 0 = TcCLK in, 1 = Auxclk out
- */
- info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
- write_control_reg(info);
-
- tx_set_idle(info);
-
- /* RRC Receive Ready Control 0
- *
- * 07..05 Reserved, must be 0
- * 04..00 RRC<4..0> Rx FIFO trigger active 0x00 = 1 byte
- */
- write_reg(info, RRC, 0x00);
-
- /* TRC0 Transmit Ready Control 0
- *
- * 07..05 Reserved, must be 0
- * 04..00 TRC<4..0> Tx FIFO trigger active 0x10 = 16 bytes
- */
- write_reg(info, TRC0, 0x10);
-
- /* TRC1 Transmit Ready Control 1
- *
- * 07..05 Reserved, must be 0
- * 04..00 TRC<4..0> Tx FIFO trigger inactive 0x1e = 31 bytes (full-1)
- */
- write_reg(info, TRC1, 0x1e);
-
- /* CTL, MSCI control register
- *
- * 07..06 Reserved, set to 0
- * 05 UDRNC, underrun control, 0=abort 1=CRC+flag (HDLC/BSC)
- * 04 IDLC, idle control, 0=mark 1=idle register
- * 03 BRK, break, 0=off 1 =on (async)
- * 02 SYNCLD, sync char load enable (BSC) 1=enabled
- * 01 GOP, go active on poll (LOOP mode) 1=enabled
- * 00 RTS, RTS output control, 0=active 1=inactive
- *
- * 0001 0001
- */
- RegValue = 0x10;
- if (!(info->serial_signals & SerialSignal_RTS))
- RegValue |= 0x01;
- write_reg(info, CTL, RegValue);
-
- /* enable status interrupts */
- info->ie0_value |= TXINTE + RXINTE;
- write_reg(info, IE0, info->ie0_value);
-
- /* enable break detect interrupt */
- info->ie1_value = BRKD;
- write_reg(info, IE1, info->ie1_value);
-
- /* enable rx overrun interrupt */
- info->ie2_value = OVRN;
- write_reg(info, IE2, info->ie2_value);
-
- set_rate( info, info->params.data_rate * 16 );
-}
-
-/* Program the SCA for HDLC communications.
- */
-static void hdlc_mode(SLMP_INFO *info)
-{
- unsigned char RegValue;
- u32 DpllDivisor;
-
- // Can't use DPLL because SCA outputs recovered clock on RxC when
- // DPLL mode selected. This causes output contention with RxC receiver.
- // Use of DPLL would require external hardware to disable RxC receiver
- // when DPLL mode selected.
- info->params.flags &= ~(HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL);
-
- /* disable DMA interrupts */
- write_reg(info, TXDMA + DIR, 0);
- write_reg(info, RXDMA + DIR, 0);
-
- /* MD0, Mode Register 0
- *
- * 07..05 PRCTL<2..0>, Protocol Mode, 100=HDLC
- * 04 AUTO, Auto-enable (RTS/CTS/DCD)
- * 03 Reserved, must be 0
- * 02 CRCCC, CRC Calculation, 1=enabled
- * 01 CRC1, CRC selection, 0=CRC-16,1=CRC-CCITT-16
- * 00 CRC0, CRC initial value, 1 = all 1s
- *
- * 1000 0001
- */
- RegValue = 0x81;
- if (info->params.flags & HDLC_FLAG_AUTO_CTS)
- RegValue |= BIT4;
- if (info->params.flags & HDLC_FLAG_AUTO_DCD)
- RegValue |= BIT4;
- if (info->params.crc_type == HDLC_CRC_16_CCITT)
- RegValue |= BIT2 + BIT1;
- write_reg(info, MD0, RegValue);
-
- /* MD1, Mode Register 1
- *
- * 07..06 ADDRS<1..0>, Address detect, 00=no addr check
- * 05..04 TXCHR<1..0>, tx char size, 00=8 bits
- * 03..02 RXCHR<1..0>, rx char size, 00=8 bits
- * 01..00 PMPM<1..0>, Parity mode, 00=no parity
- *
- * 0000 0000
- */
- RegValue = 0x00;
- write_reg(info, MD1, RegValue);
-
- /* MD2, Mode Register 2
- *
- * 07 NRZFM, 0=NRZ, 1=FM
- * 06..05 CODE<1..0> Encoding, 00=NRZ
- * 04..03 DRATE<1..0> DPLL Divisor, 00=8
- * 02 Reserved, must be 0
- * 01..00 CNCT<1..0> Channel connection, 0=normal
- *
- * 0000 0000
- */
- RegValue = 0x00;
- switch(info->params.encoding) {
- case HDLC_ENCODING_NRZI: RegValue |= BIT5; break;
- case HDLC_ENCODING_BIPHASE_MARK: RegValue |= BIT7 + BIT5; break; /* aka FM1 */
- case HDLC_ENCODING_BIPHASE_SPACE: RegValue |= BIT7 + BIT6; break; /* aka FM0 */
- case HDLC_ENCODING_BIPHASE_LEVEL: RegValue |= BIT7; break; /* aka Manchester */
-#if 0
- case HDLC_ENCODING_NRZB: /* not supported */
- case HDLC_ENCODING_NRZI_MARK: /* not supported */
- case HDLC_ENCODING_DIFF_BIPHASE_LEVEL: /* not supported */
-#endif
- }
- if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) {
- DpllDivisor = 16;
- RegValue |= BIT3;
- } else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) {
- DpllDivisor = 8;
- } else {
- DpllDivisor = 32;
- RegValue |= BIT4;
- }
- write_reg(info, MD2, RegValue);
-
-
- /* RXS, Receive clock source
- *
- * 07 Reserved, must be 0
- * 06..04 RXCS<2..0>, clock source, 000=RxC Pin, 100=BRG, 110=DPLL
- * 03..00 RXBR<3..0>, rate divisor, 0000=1
- */
- RegValue=0;
- if (info->params.flags & HDLC_FLAG_RXC_BRG)
- RegValue |= BIT6;
- if (info->params.flags & HDLC_FLAG_RXC_DPLL)
- RegValue |= BIT6 + BIT5;
- write_reg(info, RXS, RegValue);
-
- /* TXS, Transmit clock source
- *
- * 07 Reserved, must be 0
- * 06..04 RXCS<2..0>, clock source, 000=TxC Pin, 100=BRG, 110=Receive Clock
- * 03..00 RXBR<3..0>, rate divisor, 0000=1
- */
- RegValue=0;
- if (info->params.flags & HDLC_FLAG_TXC_BRG)
- RegValue |= BIT6;
- if (info->params.flags & HDLC_FLAG_TXC_DPLL)
- RegValue |= BIT6 + BIT5;
- write_reg(info, TXS, RegValue);
-
- if (info->params.flags & HDLC_FLAG_RXC_DPLL)
- set_rate(info, info->params.clock_speed * DpllDivisor);
- else
- set_rate(info, info->params.clock_speed);
-
- /* GPDATA (General Purpose I/O Data Register)
- *
- * 6,4,2,0 CLKSEL<3..0>, 0 = TcCLK in, 1 = Auxclk out
- */
- if (info->params.flags & HDLC_FLAG_TXC_BRG)
- info->port_array[0]->ctrlreg_value |= (BIT0 << (info->port_num * 2));
- else
- info->port_array[0]->ctrlreg_value &= ~(BIT0 << (info->port_num * 2));
- write_control_reg(info);
-
- /* RRC Receive Ready Control 0
- *
- * 07..05 Reserved, must be 0
- * 04..00 RRC<4..0> Rx FIFO trigger active
- */
- write_reg(info, RRC, rx_active_fifo_level);
-
- /* TRC0 Transmit Ready Control 0
- *
- * 07..05 Reserved, must be 0
- * 04..00 TRC<4..0> Tx FIFO trigger active
- */
- write_reg(info, TRC0, tx_active_fifo_level);
-
- /* TRC1 Transmit Ready Control 1
- *
- * 07..05 Reserved, must be 0
- * 04..00 TRC<4..0> Tx FIFO trigger inactive 0x1f = 32 bytes (full)
- */
- write_reg(info, TRC1, (unsigned char)(tx_negate_fifo_level - 1));
-
- /* DMR, DMA Mode Register
- *
- * 07..05 Reserved, must be 0
- * 04 TMOD, Transfer Mode: 1=chained-block
- * 03 Reserved, must be 0
- * 02 NF, Number of Frames: 1=multi-frame
- * 01 CNTE, Frame End IRQ Counter enable: 0=disabled
- * 00 Reserved, must be 0
- *
- * 0001 0100
- */
- write_reg(info, TXDMA + DMR, 0x14);
- write_reg(info, RXDMA + DMR, 0x14);
-
- /* Set chain pointer base (upper 8 bits of 24 bit addr) */
- write_reg(info, RXDMA + CPB,
- (unsigned char)(info->buffer_list_phys >> 16));
-
- /* Set chain pointer base (upper 8 bits of 24 bit addr) */
- write_reg(info, TXDMA + CPB,
- (unsigned char)(info->buffer_list_phys >> 16));
-
- /* enable status interrupts. other code enables/disables
- * the individual sources for these two interrupt classes.
- */
- info->ie0_value |= TXINTE + RXINTE;
- write_reg(info, IE0, info->ie0_value);
-
- /* CTL, MSCI control register
- *
- * 07..06 Reserved, set to 0
- * 05 UDRNC, underrun control, 0=abort 1=CRC+flag (HDLC/BSC)
- * 04 IDLC, idle control, 0=mark 1=idle register
- * 03 BRK, break, 0=off 1 =on (async)
- * 02 SYNCLD, sync char load enable (BSC) 1=enabled
- * 01 GOP, go active on poll (LOOP mode) 1=enabled
- * 00 RTS, RTS output control, 0=active 1=inactive
- *
- * 0001 0001
- */
- RegValue = 0x10;
- if (!(info->serial_signals & SerialSignal_RTS))
- RegValue |= 0x01;
- write_reg(info, CTL, RegValue);
-
- /* preamble not supported ! */
-
- tx_set_idle(info);
- tx_stop(info);
- rx_stop(info);
-
- set_rate(info, info->params.clock_speed);
-
- if (info->params.loopback)
- enable_loopback(info,1);
-}
-
-/* Set the transmit HDLC idle mode
- */
-static void tx_set_idle(SLMP_INFO *info)
-{
- unsigned char RegValue = 0xff;
-
- /* Map API idle mode to SCA register bits */
- switch(info->idle_mode) {
- case HDLC_TXIDLE_FLAGS: RegValue = 0x7e; break;
- case HDLC_TXIDLE_ALT_ZEROS_ONES: RegValue = 0xaa; break;
- case HDLC_TXIDLE_ZEROS: RegValue = 0x00; break;
- case HDLC_TXIDLE_ONES: RegValue = 0xff; break;
- case HDLC_TXIDLE_ALT_MARK_SPACE: RegValue = 0xaa; break;
- case HDLC_TXIDLE_SPACE: RegValue = 0x00; break;
- case HDLC_TXIDLE_MARK: RegValue = 0xff; break;
- }
-
- write_reg(info, IDL, RegValue);
-}
-
-/* Query the adapter for the state of the V24 status (input) signals.
- */
-static void get_signals(SLMP_INFO *info)
-{
- u16 status = read_reg(info, SR3);
- u16 gpstatus = read_status_reg(info);
- u16 testbit;
-
- /* clear all serial signals except DTR and RTS */
- info->serial_signals &= SerialSignal_DTR + SerialSignal_RTS;
-
- /* set serial signal bits to reflect MISR */
-
- if (!(status & BIT3))
- info->serial_signals |= SerialSignal_CTS;
-
- if ( !(status & BIT2))
- info->serial_signals |= SerialSignal_DCD;
-
- testbit = BIT1 << (info->port_num * 2); // Port 0..3 RI is GPDATA<1,3,5,7>
- if (!(gpstatus & testbit))
- info->serial_signals |= SerialSignal_RI;
-
- testbit = BIT0 << (info->port_num * 2); // Port 0..3 DSR is GPDATA<0,2,4,6>
- if (!(gpstatus & testbit))
- info->serial_signals |= SerialSignal_DSR;
-}
-
-/* Set the state of DTR and RTS based on contents of
- * serial_signals member of device context.
- */
-static void set_signals(SLMP_INFO *info)
-{
- unsigned char RegValue;
- u16 EnableBit;
-
- RegValue = read_reg(info, CTL);
- if (info->serial_signals & SerialSignal_RTS)
- RegValue &= ~BIT0;
- else
- RegValue |= BIT0;
- write_reg(info, CTL, RegValue);
-
- // Port 0..3 DTR is ctrl reg <1,3,5,7>
- EnableBit = BIT1 << (info->port_num*2);
- if (info->serial_signals & SerialSignal_DTR)
- info->port_array[0]->ctrlreg_value &= ~EnableBit;
- else
- info->port_array[0]->ctrlreg_value |= EnableBit;
- write_control_reg(info);
-}
-
-/*******************/
-/* DMA Buffer Code */
-/*******************/
-
-/* Set the count for all receive buffers to SCABUFSIZE
- * and set the current buffer to the first buffer. This effectively
- * makes all buffers free and discards any data in buffers.
- */
-static void rx_reset_buffers(SLMP_INFO *info)
-{
- rx_free_frame_buffers(info, 0, info->rx_buf_count - 1);
-}
-
-/* Free the buffers used by a received frame
- *
- * info pointer to device instance data
- * first index of 1st receive buffer of frame
- * last index of last receive buffer of frame
- */
-static void rx_free_frame_buffers(SLMP_INFO *info, unsigned int first, unsigned int last)
-{
- bool done = false;
-
- while(!done) {
- /* reset current buffer for reuse */
- info->rx_buf_list[first].status = 0xff;
-
- if (first == last) {
- done = true;
- /* set new last rx descriptor address */
- write_reg16(info, RXDMA + EDA, info->rx_buf_list_ex[first].phys_entry);
- }
-
- first++;
- if (first == info->rx_buf_count)
- first = 0;
- }
-
- /* set current buffer to next buffer after last buffer of frame */
- info->current_rx_buf = first;
-}
-
-/* Return a received frame from the receive DMA buffers.
- * Only frames received without errors are returned.
- *
- * Return Value: true if frame returned, otherwise false
- */
-static bool rx_get_frame(SLMP_INFO *info)
-{
- unsigned int StartIndex, EndIndex; /* index of 1st and last buffers of Rx frame */
- unsigned short status;
- unsigned int framesize = 0;
- bool ReturnCode = false;
- unsigned long flags;
- struct tty_struct *tty = info->port.tty;
- unsigned char addr_field = 0xff;
- SCADESC *desc;
- SCADESC_EX *desc_ex;
-
-CheckAgain:
- /* assume no frame returned, set zero length */
- framesize = 0;
- addr_field = 0xff;
-
- /*
- * current_rx_buf points to the 1st buffer of the next available
- * receive frame. To find the last buffer of the frame look for
- * a non-zero status field in the buffer entries. (The status
- * field is set by the 16C32 after completing a receive frame.
- */
- StartIndex = EndIndex = info->current_rx_buf;
-
- for ( ;; ) {
- desc = &info->rx_buf_list[EndIndex];
- desc_ex = &info->rx_buf_list_ex[EndIndex];
-
- if (desc->status == 0xff)
- goto Cleanup; /* current desc still in use, no frames available */
-
- if (framesize == 0 && info->params.addr_filter != 0xff)
- addr_field = desc_ex->virt_addr[0];
-
- framesize += desc->length;
-
- /* Status != 0 means last buffer of frame */
- if (desc->status)
- break;
-
- EndIndex++;
- if (EndIndex == info->rx_buf_count)
- EndIndex = 0;
-
- if (EndIndex == info->current_rx_buf) {
- /* all buffers have been 'used' but none mark */
- /* the end of a frame. Reset buffers and receiver. */
- if ( info->rx_enabled ){
- spin_lock_irqsave(&info->lock,flags);
- rx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
- goto Cleanup;
- }
-
- }
-
- /* check status of receive frame */
-
- /* frame status is byte stored after frame data
- *
- * 7 EOM (end of msg), 1 = last buffer of frame
- * 6 Short Frame, 1 = short frame
- * 5 Abort, 1 = frame aborted
- * 4 Residue, 1 = last byte is partial
- * 3 Overrun, 1 = overrun occurred during frame reception
- * 2 CRC, 1 = CRC error detected
- *
- */
- status = desc->status;
-
- /* ignore CRC bit if not using CRC (bit is undefined) */
- /* Note:CRC is not save to data buffer */
- if (info->params.crc_type == HDLC_CRC_NONE)
- status &= ~BIT2;
-
- if (framesize == 0 ||
- (addr_field != 0xff && addr_field != info->params.addr_filter)) {
- /* discard 0 byte frames, this seems to occur sometime
- * when remote is idling flags.
- */
- rx_free_frame_buffers(info, StartIndex, EndIndex);
- goto CheckAgain;
- }
-
- if (framesize < 2)
- status |= BIT6;
-
- if (status & (BIT6+BIT5+BIT3+BIT2)) {
- /* received frame has errors,
- * update counts and mark frame size as 0
- */
- if (status & BIT6)
- info->icount.rxshort++;
- else if (status & BIT5)
- info->icount.rxabort++;
- else if (status & BIT3)
- info->icount.rxover++;
- else
- info->icount.rxcrc++;
-
- framesize = 0;
-#if SYNCLINK_GENERIC_HDLC
- {
- info->netdev->stats.rx_errors++;
- info->netdev->stats.rx_frame_errors++;
- }
-#endif
- }
-
- if ( debug_level >= DEBUG_LEVEL_BH )
- printk("%s(%d):%s rx_get_frame() status=%04X size=%d\n",
- __FILE__,__LINE__,info->device_name,status,framesize);
-
- if ( debug_level >= DEBUG_LEVEL_DATA )
- trace_block(info,info->rx_buf_list_ex[StartIndex].virt_addr,
- min_t(int, framesize,SCABUFSIZE),0);
-
- if (framesize) {
- if (framesize > info->max_frame_size)
- info->icount.rxlong++;
- else {
- /* copy dma buffer(s) to contiguous intermediate buffer */
- int copy_count = framesize;
- int index = StartIndex;
- unsigned char *ptmp = info->tmp_rx_buf;
- info->tmp_rx_buf_count = framesize;
-
- info->icount.rxok++;
-
- while(copy_count) {
- int partial_count = min(copy_count,SCABUFSIZE);
- memcpy( ptmp,
- info->rx_buf_list_ex[index].virt_addr,
- partial_count );
- ptmp += partial_count;
- copy_count -= partial_count;
-
- if ( ++index == info->rx_buf_count )
- index = 0;
- }
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_rx(info,info->tmp_rx_buf,framesize);
- else
-#endif
- ldisc_receive_buf(tty,info->tmp_rx_buf,
- info->flag_buf, framesize);
- }
- }
- /* Free the buffers used by this frame. */
- rx_free_frame_buffers( info, StartIndex, EndIndex );
-
- ReturnCode = true;
-
-Cleanup:
- if ( info->rx_enabled && info->rx_overflow ) {
- /* Receiver is enabled, but needs to restarted due to
- * rx buffer overflow. If buffers are empty, restart receiver.
- */
- if (info->rx_buf_list[EndIndex].status == 0xff) {
- spin_lock_irqsave(&info->lock,flags);
- rx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
- }
- }
-
- return ReturnCode;
-}
-
-/* load the transmit DMA buffer with data
- */
-static void tx_load_dma_buffer(SLMP_INFO *info, const char *buf, unsigned int count)
-{
- unsigned short copy_count;
- unsigned int i = 0;
- SCADESC *desc;
- SCADESC_EX *desc_ex;
-
- if ( debug_level >= DEBUG_LEVEL_DATA )
- trace_block(info,buf, min_t(int, count,SCABUFSIZE), 1);
-
- /* Copy source buffer to one or more DMA buffers, starting with
- * the first transmit dma buffer.
- */
- for(i=0;;)
- {
- copy_count = min_t(unsigned short,count,SCABUFSIZE);
-
- desc = &info->tx_buf_list[i];
- desc_ex = &info->tx_buf_list_ex[i];
-
- load_pci_memory(info, desc_ex->virt_addr,buf,copy_count);
-
- desc->length = copy_count;
- desc->status = 0;
-
- buf += copy_count;
- count -= copy_count;
-
- if (!count)
- break;
-
- i++;
- if (i >= info->tx_buf_count)
- i = 0;
- }
-
- info->tx_buf_list[i].status = 0x81; /* set EOM and EOT status */
- info->last_tx_buf = ++i;
-}
-
-static bool register_test(SLMP_INFO *info)
-{
- static unsigned char testval[] = {0x00, 0xff, 0xaa, 0x55, 0x69, 0x96};
- static unsigned int count = ARRAY_SIZE(testval);
- unsigned int i;
- bool rc = true;
- unsigned long flags;
-
- spin_lock_irqsave(&info->lock,flags);
- reset_port(info);
-
- /* assume failure */
- info->init_error = DiagStatus_AddressFailure;
-
- /* Write bit patterns to various registers but do it out of */
- /* sync, then read back and verify values. */
-
- for (i = 0 ; i < count ; i++) {
- write_reg(info, TMC, testval[i]);
- write_reg(info, IDL, testval[(i+1)%count]);
- write_reg(info, SA0, testval[(i+2)%count]);
- write_reg(info, SA1, testval[(i+3)%count]);
-
- if ( (read_reg(info, TMC) != testval[i]) ||
- (read_reg(info, IDL) != testval[(i+1)%count]) ||
- (read_reg(info, SA0) != testval[(i+2)%count]) ||
- (read_reg(info, SA1) != testval[(i+3)%count]) )
- {
- rc = false;
- break;
- }
- }
-
- reset_port(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- return rc;
-}
-
-static bool irq_test(SLMP_INFO *info)
-{
- unsigned long timeout;
- unsigned long flags;
-
- unsigned char timer = (info->port_num & 1) ? TIMER2 : TIMER0;
-
- spin_lock_irqsave(&info->lock,flags);
- reset_port(info);
-
- /* assume failure */
- info->init_error = DiagStatus_IrqFailure;
- info->irq_occurred = false;
-
- /* setup timer0 on SCA0 to interrupt */
-
- /* IER2<7..4> = timer<3..0> interrupt enables (1=enabled) */
- write_reg(info, IER2, (unsigned char)((info->port_num & 1) ? BIT6 : BIT4));
-
- write_reg(info, (unsigned char)(timer + TEPR), 0); /* timer expand prescale */
- write_reg16(info, (unsigned char)(timer + TCONR), 1); /* timer constant */
-
-
- /* TMCS, Timer Control/Status Register
- *
- * 07 CMF, Compare match flag (read only) 1=match
- * 06 ECMI, CMF Interrupt Enable: 1=enabled
- * 05 Reserved, must be 0
- * 04 TME, Timer Enable
- * 03..00 Reserved, must be 0
- *
- * 0101 0000
- */
- write_reg(info, (unsigned char)(timer + TMCS), 0x50);
-
- spin_unlock_irqrestore(&info->lock,flags);
-
- timeout=100;
- while( timeout-- && !info->irq_occurred ) {
- msleep_interruptible(10);
- }
-
- spin_lock_irqsave(&info->lock,flags);
- reset_port(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- return info->irq_occurred;
-}
-
-/* initialize individual SCA device (2 ports)
- */
-static bool sca_init(SLMP_INFO *info)
-{
- /* set wait controller to single mem partition (low), no wait states */
- write_reg(info, PABR0, 0); /* wait controller addr boundary 0 */
- write_reg(info, PABR1, 0); /* wait controller addr boundary 1 */
- write_reg(info, WCRL, 0); /* wait controller low range */
- write_reg(info, WCRM, 0); /* wait controller mid range */
- write_reg(info, WCRH, 0); /* wait controller high range */
-
- /* DPCR, DMA Priority Control
- *
- * 07..05 Not used, must be 0
- * 04 BRC, bus release condition: 0=all transfers complete
- * 03 CCC, channel change condition: 0=every cycle
- * 02..00 PR<2..0>, priority 100=round robin
- *
- * 00000100 = 0x04
- */
- write_reg(info, DPCR, dma_priority);
-
- /* DMA Master Enable, BIT7: 1=enable all channels */
- write_reg(info, DMER, 0x80);
-
- /* enable all interrupt classes */
- write_reg(info, IER0, 0xff); /* TxRDY,RxRDY,TxINT,RxINT (ports 0-1) */
- write_reg(info, IER1, 0xff); /* DMIB,DMIA (channels 0-3) */
- write_reg(info, IER2, 0xf0); /* TIRQ (timers 0-3) */
-
- /* ITCR, interrupt control register
- * 07 IPC, interrupt priority, 0=MSCI->DMA
- * 06..05 IAK<1..0>, Acknowledge cycle, 00=non-ack cycle
- * 04 VOS, Vector Output, 0=unmodified vector
- * 03..00 Reserved, must be 0
- */
- write_reg(info, ITCR, 0);
-
- return true;
-}
-
-/* initialize adapter hardware
- */
-static bool init_adapter(SLMP_INFO *info)
-{
- int i;
-
- /* Set BIT30 of Local Control Reg 0x50 to reset SCA */
- volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);
- u32 readval;
-
- info->misc_ctrl_value |= BIT30;
- *MiscCtrl = info->misc_ctrl_value;
-
- /*
- * Force at least 170ns delay before clearing
- * reset bit. Each read from LCR takes at least
- * 30ns so 10 times for 300ns to be safe.
- */
- for(i=0;i<10;i++)
- readval = *MiscCtrl;
-
- info->misc_ctrl_value &= ~BIT30;
- *MiscCtrl = info->misc_ctrl_value;
-
- /* init control reg (all DTRs off, all clksel=input) */
- info->ctrlreg_value = 0xaa;
- write_control_reg(info);
-
- {
- volatile u32 *LCR1BRDR = (u32 *)(info->lcr_base + 0x2c);
- lcr1_brdr_value &= ~(BIT5 + BIT4 + BIT3);
-
- switch(read_ahead_count)
- {
- case 16:
- lcr1_brdr_value |= BIT5 + BIT4 + BIT3;
- break;
- case 8:
- lcr1_brdr_value |= BIT5 + BIT4;
- break;
- case 4:
- lcr1_brdr_value |= BIT5 + BIT3;
- break;
- case 0:
- lcr1_brdr_value |= BIT5;
- break;
- }
-
- *LCR1BRDR = lcr1_brdr_value;
- *MiscCtrl = misc_ctrl_value;
- }
-
- sca_init(info->port_array[0]);
- sca_init(info->port_array[2]);
-
- return true;
-}
-
-/* Loopback an HDLC frame to test the hardware
- * interrupt and DMA functions.
- */
-static bool loopback_test(SLMP_INFO *info)
-{
-#define TESTFRAMESIZE 20
-
- unsigned long timeout;
- u16 count = TESTFRAMESIZE;
- unsigned char buf[TESTFRAMESIZE];
- bool rc = false;
- unsigned long flags;
-
- struct tty_struct *oldtty = info->port.tty;
- u32 speed = info->params.clock_speed;
-
- info->params.clock_speed = 3686400;
- info->port.tty = NULL;
-
- /* assume failure */
- info->init_error = DiagStatus_DmaFailure;
-
- /* build and send transmit frame */
- for (count = 0; count < TESTFRAMESIZE;++count)
- buf[count] = (unsigned char)count;
-
- memset(info->tmp_rx_buf,0,TESTFRAMESIZE);
-
- /* program hardware for HDLC and enabled receiver */
- spin_lock_irqsave(&info->lock,flags);
- hdlc_mode(info);
- enable_loopback(info,1);
- rx_start(info);
- info->tx_count = count;
- tx_load_dma_buffer(info,buf,count);
- tx_start(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- /* wait for receive complete */
- /* Set a timeout for waiting for interrupt. */
- for ( timeout = 100; timeout; --timeout ) {
- msleep_interruptible(10);
-
- if (rx_get_frame(info)) {
- rc = true;
- break;
- }
- }
-
- /* verify received frame length and contents */
- if (rc &&
- ( info->tmp_rx_buf_count != count ||
- memcmp(buf, info->tmp_rx_buf,count))) {
- rc = false;
- }
-
- spin_lock_irqsave(&info->lock,flags);
- reset_adapter(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- info->params.clock_speed = speed;
- info->port.tty = oldtty;
-
- return rc;
-}
-
-/* Perform diagnostics on hardware
- */
-static int adapter_test( SLMP_INFO *info )
-{
- unsigned long flags;
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):Testing device %s\n",
- __FILE__,__LINE__,info->device_name );
-
- spin_lock_irqsave(&info->lock,flags);
- init_adapter(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- info->port_array[0]->port_count = 0;
-
- if ( register_test(info->port_array[0]) &&
- register_test(info->port_array[1])) {
-
- info->port_array[0]->port_count = 2;
-
- if ( register_test(info->port_array[2]) &&
- register_test(info->port_array[3]) )
- info->port_array[0]->port_count += 2;
- }
- else {
- printk( "%s(%d):Register test failure for device %s Addr=%08lX\n",
- __FILE__,__LINE__,info->device_name, (unsigned long)(info->phys_sca_base));
- return -ENODEV;
- }
-
- if ( !irq_test(info->port_array[0]) ||
- !irq_test(info->port_array[1]) ||
- (info->port_count == 4 && !irq_test(info->port_array[2])) ||
- (info->port_count == 4 && !irq_test(info->port_array[3]))) {
- printk( "%s(%d):Interrupt test failure for device %s IRQ=%d\n",
- __FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) );
- return -ENODEV;
- }
-
- if (!loopback_test(info->port_array[0]) ||
- !loopback_test(info->port_array[1]) ||
- (info->port_count == 4 && !loopback_test(info->port_array[2])) ||
- (info->port_count == 4 && !loopback_test(info->port_array[3]))) {
- printk( "%s(%d):DMA test failure for device %s\n",
- __FILE__,__LINE__,info->device_name);
- return -ENODEV;
- }
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):device %s passed diagnostics\n",
- __FILE__,__LINE__,info->device_name );
-
- info->port_array[0]->init_error = 0;
- info->port_array[1]->init_error = 0;
- if ( info->port_count > 2 ) {
- info->port_array[2]->init_error = 0;
- info->port_array[3]->init_error = 0;
- }
-
- return 0;
-}
-
-/* Test the shared memory on a PCI adapter.
- */
-static bool memory_test(SLMP_INFO *info)
-{
- static unsigned long testval[] = { 0x0, 0x55555555, 0xaaaaaaaa,
- 0x66666666, 0x99999999, 0xffffffff, 0x12345678 };
- unsigned long count = ARRAY_SIZE(testval);
- unsigned long i;
- unsigned long limit = SCA_MEM_SIZE/sizeof(unsigned long);
- unsigned long * addr = (unsigned long *)info->memory_base;
-
- /* Test data lines with test pattern at one location. */
-
- for ( i = 0 ; i < count ; i++ ) {
- *addr = testval[i];
- if ( *addr != testval[i] )
- return false;
- }
-
- /* Test address lines with incrementing pattern over */
- /* entire address range. */
-
- for ( i = 0 ; i < limit ; i++ ) {
- *addr = i * 4;
- addr++;
- }
-
- addr = (unsigned long *)info->memory_base;
-
- for ( i = 0 ; i < limit ; i++ ) {
- if ( *addr != i * 4 )
- return false;
- addr++;
- }
-
- memset( info->memory_base, 0, SCA_MEM_SIZE );
- return true;
-}
-
-/* Load data into PCI adapter shared memory.
- *
- * The PCI9050 releases control of the local bus
- * after completing the current read or write operation.
- *
- * While the PCI9050 write FIFO not empty, the
- * PCI9050 treats all of the writes as a single transaction
- * and does not release the bus. This causes DMA latency problems
- * at high speeds when copying large data blocks to the shared memory.
- *
- * This function breaks a write into multiple transations by
- * interleaving a read which flushes the write FIFO and 'completes'
- * the write transation. This allows any pending DMA request to gain control
- * of the local bus in a timely fasion.
- */
-static void load_pci_memory(SLMP_INFO *info, char* dest, const char* src, unsigned short count)
-{
- /* A load interval of 16 allows for 4 32-bit writes at */
- /* 136ns each for a maximum latency of 542ns on the local bus.*/
-
- unsigned short interval = count / sca_pci_load_interval;
- unsigned short i;
-
- for ( i = 0 ; i < interval ; i++ )
- {
- memcpy(dest, src, sca_pci_load_interval);
- read_status_reg(info);
- dest += sca_pci_load_interval;
- src += sca_pci_load_interval;
- }
-
- memcpy(dest, src, count % sca_pci_load_interval);
-}
-
-static void trace_block(SLMP_INFO *info,const char* data, int count, int xmit)
-{
- int i;
- int linecount;
- if (xmit)
- printk("%s tx data:\n",info->device_name);
- else
- printk("%s rx data:\n",info->device_name);
-
- while(count) {
- if (count > 16)
- linecount = 16;
- else
- linecount = count;
-
- for(i=0;i<linecount;i++)
- printk("%02X ",(unsigned char)data[i]);
- for(;i<17;i++)
- printk(" ");
- for(i=0;i<linecount;i++) {
- if (data[i]>=040 && data[i]<=0176)
- printk("%c",data[i]);
- else
- printk(".");
- }
- printk("\n");
-
- data += linecount;
- count -= linecount;
- }
-} /* end of trace_block() */
-
-/* called when HDLC frame times out
- * update stats and do tx completion processing
- */
-static void tx_timeout(unsigned long context)
-{
- SLMP_INFO *info = (SLMP_INFO*)context;
- unsigned long flags;
-
- if ( debug_level >= DEBUG_LEVEL_INFO )
- printk( "%s(%d):%s tx_timeout()\n",
- __FILE__,__LINE__,info->device_name);
- if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) {
- info->icount.txtimeout++;
- }
- spin_lock_irqsave(&info->lock,flags);
- info->tx_active = false;
- info->tx_count = info->tx_put = info->tx_get = 0;
-
- spin_unlock_irqrestore(&info->lock,flags);
-
-#if SYNCLINK_GENERIC_HDLC
- if (info->netcount)
- hdlcdev_tx_done(info);
- else
-#endif
- bh_transmit(info);
-}
-
-/* called to periodically check the DSR/RI modem signal input status
- */
-static void status_timeout(unsigned long context)
-{
- u16 status = 0;
- SLMP_INFO *info = (SLMP_INFO*)context;
- unsigned long flags;
- unsigned char delta;
-
-
- spin_lock_irqsave(&info->lock,flags);
- get_signals(info);
- spin_unlock_irqrestore(&info->lock,flags);
-
- /* check for DSR/RI state change */
-
- delta = info->old_signals ^ info->serial_signals;
- info->old_signals = info->serial_signals;
-
- if (delta & SerialSignal_DSR)
- status |= MISCSTATUS_DSR_LATCHED|(info->serial_signals&SerialSignal_DSR);
-
- if (delta & SerialSignal_RI)
- status |= MISCSTATUS_RI_LATCHED|(info->serial_signals&SerialSignal_RI);
-
- if (delta & SerialSignal_DCD)
- status |= MISCSTATUS_DCD_LATCHED|(info->serial_signals&SerialSignal_DCD);
-
- if (delta & SerialSignal_CTS)
- status |= MISCSTATUS_CTS_LATCHED|(info->serial_signals&SerialSignal_CTS);
-
- if (status)
- isr_io_pin(info,status);
-
- mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
-}
-
-
-/* Register Access Routines -
- * All registers are memory mapped
- */
-#define CALC_REGADDR() \
- unsigned char * RegAddr = (unsigned char*)(info->sca_base + Addr); \
- if (info->port_num > 1) \
- RegAddr += 256; /* port 0-1 SCA0, 2-3 SCA1 */ \
- if ( info->port_num & 1) { \
- if (Addr > 0x7f) \
- RegAddr += 0x40; /* DMA access */ \
- else if (Addr > 0x1f && Addr < 0x60) \
- RegAddr += 0x20; /* MSCI access */ \
- }
-
-
-static unsigned char read_reg(SLMP_INFO * info, unsigned char Addr)
-{
- CALC_REGADDR();
- return *RegAddr;
-}
-static void write_reg(SLMP_INFO * info, unsigned char Addr, unsigned char Value)
-{
- CALC_REGADDR();
- *RegAddr = Value;
-}
-
-static u16 read_reg16(SLMP_INFO * info, unsigned char Addr)
-{
- CALC_REGADDR();
- return *((u16 *)RegAddr);
-}
-
-static void write_reg16(SLMP_INFO * info, unsigned char Addr, u16 Value)
-{
- CALC_REGADDR();
- *((u16 *)RegAddr) = Value;
-}
-
-static unsigned char read_status_reg(SLMP_INFO * info)
-{
- unsigned char *RegAddr = (unsigned char *)info->statctrl_base;
- return *RegAddr;
-}
-
-static void write_control_reg(SLMP_INFO * info)
-{
- unsigned char *RegAddr = (unsigned char *)info->statctrl_base;
- *RegAddr = info->port_array[0]->ctrlreg_value;
-}
-
-
-static int __devinit synclinkmp_init_one (struct pci_dev *dev,
- const struct pci_device_id *ent)
-{
- if (pci_enable_device(dev)) {
- printk("error enabling pci device %p\n", dev);
- return -EIO;
- }
- device_init( ++synclinkmp_adapter_count, dev );
- return 0;
-}
-
-static void __devexit synclinkmp_remove_one (struct pci_dev *dev)
-{
-}
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index c40c1612c8a..a1f68af4ccf 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -144,7 +144,7 @@ static int tpk_write_room(struct tty_struct *tty)
/*
* TTY operations ioctl function.
*/
-static int tpk_ioctl(struct tty_struct *tty, struct file *file,
+static int tpk_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
struct ttyprintk_port *tpkp = tty->driver_data;
diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c
deleted file mode 100644
index 12de1202d22..00000000000
--- a/drivers/char/vme_scc.c
+++ /dev/null
@@ -1,1145 +0,0 @@
-/*
- * drivers/char/vme_scc.c: MVME147, MVME162, BVME6000 SCC serial ports
- * implementation.
- * Copyright 1999 Richard Hirst <richard@sleepie.demon.co.uk>
- *
- * Based on atari_SCC.c which was
- * Copyright 1994-95 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
- * Partially based on PC-Linux serial.c by Linus Torvalds and Theodore Ts'o
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kdev_t.h>
-#include <asm/io.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/mm.h>
-#include <linux/serial.h>
-#include <linux/fcntl.h>
-#include <linux/major.h>
-#include <linux/delay.h>
-#include <linux/miscdevice.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <asm/setup.h>
-#include <asm/bootinfo.h>
-
-#ifdef CONFIG_MVME147_SCC
-#include <asm/mvme147hw.h>
-#endif
-#ifdef CONFIG_MVME162_SCC
-#include <asm/mvme16xhw.h>
-#endif
-#ifdef CONFIG_BVME6000_SCC
-#include <asm/bvme6000hw.h>
-#endif
-
-#include <linux/generic_serial.h>
-#include "scc.h"
-
-
-#define CHANNEL_A 0
-#define CHANNEL_B 1
-
-#define SCC_MINOR_BASE 64
-
-/* Shadows for all SCC write registers */
-static unsigned char scc_shadow[2][16];
-
-/* Location to access for SCC register access delay */
-static volatile unsigned char *scc_del = NULL;
-
-/* To keep track of STATUS_REG state for detection of Ext/Status int source */
-static unsigned char scc_last_status_reg[2];
-
-/***************************** Prototypes *****************************/
-
-/* Function prototypes */
-static void scc_disable_tx_interrupts(void * ptr);
-static void scc_enable_tx_interrupts(void * ptr);
-static void scc_disable_rx_interrupts(void * ptr);
-static void scc_enable_rx_interrupts(void * ptr);
-static int scc_carrier_raised(struct tty_port *port);
-static void scc_shutdown_port(void * ptr);
-static int scc_set_real_termios(void *ptr);
-static void scc_hungup(void *ptr);
-static void scc_close(void *ptr);
-static int scc_chars_in_buffer(void * ptr);
-static int scc_open(struct tty_struct * tty, struct file * filp);
-static int scc_ioctl(struct tty_struct * tty, struct file * filp,
- unsigned int cmd, unsigned long arg);
-static void scc_throttle(struct tty_struct *tty);
-static void scc_unthrottle(struct tty_struct *tty);
-static irqreturn_t scc_tx_int(int irq, void *data);
-static irqreturn_t scc_rx_int(int irq, void *data);
-static irqreturn_t scc_stat_int(int irq, void *data);
-static irqreturn_t scc_spcond_int(int irq, void *data);
-static void scc_setsignals(struct scc_port *port, int dtr, int rts);
-static int scc_break_ctl(struct tty_struct *tty, int break_state);
-
-static struct tty_driver *scc_driver;
-
-static struct scc_port scc_ports[2];
-
-/*---------------------------------------------------------------------------
- * Interface from generic_serial.c back here
- *--------------------------------------------------------------------------*/
-
-static struct real_driver scc_real_driver = {
- scc_disable_tx_interrupts,
- scc_enable_tx_interrupts,
- scc_disable_rx_interrupts,
- scc_enable_rx_interrupts,
- scc_shutdown_port,
- scc_set_real_termios,
- scc_chars_in_buffer,
- scc_close,
- scc_hungup,
- NULL
-};
-
-
-static const struct tty_operations scc_ops = {
- .open = scc_open,
- .close = gs_close,
- .write = gs_write,
- .put_char = gs_put_char,
- .flush_chars = gs_flush_chars,
- .write_room = gs_write_room,
- .chars_in_buffer = gs_chars_in_buffer,
- .flush_buffer = gs_flush_buffer,
- .ioctl = scc_ioctl,
- .throttle = scc_throttle,
- .unthrottle = scc_unthrottle,
- .set_termios = gs_set_termios,
- .stop = gs_stop,
- .start = gs_start,
- .hangup = gs_hangup,
- .break_ctl = scc_break_ctl,
-};
-
-static const struct tty_port_operations scc_port_ops = {
- .carrier_raised = scc_carrier_raised,
-};
-
-/*----------------------------------------------------------------------------
- * vme_scc_init() and support functions
- *---------------------------------------------------------------------------*/
-
-static int __init scc_init_drivers(void)
-{
- int error;
-
- scc_driver = alloc_tty_driver(2);
- if (!scc_driver)
- return -ENOMEM;
- scc_driver->owner = THIS_MODULE;
- scc_driver->driver_name = "scc";
- scc_driver->name = "ttyS";
- scc_driver->major = TTY_MAJOR;
- scc_driver->minor_start = SCC_MINOR_BASE;
- scc_driver->type = TTY_DRIVER_TYPE_SERIAL;
- scc_driver->subtype = SERIAL_TYPE_NORMAL;
- scc_driver->init_termios = tty_std_termios;
- scc_driver->init_termios.c_cflag =
- B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- scc_driver->init_termios.c_ispeed = 9600;
- scc_driver->init_termios.c_ospeed = 9600;
- scc_driver->flags = TTY_DRIVER_REAL_RAW;
- tty_set_operations(scc_driver, &scc_ops);
-
- if ((error = tty_register_driver(scc_driver))) {
- printk(KERN_ERR "scc: Couldn't register scc driver, error = %d\n",
- error);
- put_tty_driver(scc_driver);
- return 1;
- }
-
- return 0;
-}
-
-
-/* ports[] array is indexed by line no (i.e. [0] for ttyS0, [1] for ttyS1).
- */
-
-static void __init scc_init_portstructs(void)
-{
- struct scc_port *port;
- int i;
-
- for (i = 0; i < 2; i++) {
- port = scc_ports + i;
- tty_port_init(&port->gs.port);
- port->gs.port.ops = &scc_port_ops;
- port->gs.magic = SCC_MAGIC;
- port->gs.close_delay = HZ/2;
- port->gs.closing_wait = 30 * HZ;
- port->gs.rd = &scc_real_driver;
-#ifdef NEW_WRITE_LOCKING
- port->gs.port_write_mutex = MUTEX;
-#endif
- init_waitqueue_head(&port->gs.port.open_wait);
- init_waitqueue_head(&port->gs.port.close_wait);
- }
-}
-
-
-#ifdef CONFIG_MVME147_SCC
-static int __init mvme147_scc_init(void)
-{
- struct scc_port *port;
- int error;
-
- printk(KERN_INFO "SCC: MVME147 Serial Driver\n");
- /* Init channel A */
- port = &scc_ports[0];
- port->channel = CHANNEL_A;
- port->ctrlp = (volatile unsigned char *)M147_SCC_A_ADDR;
- port->datap = port->ctrlp + 1;
- port->port_a = &scc_ports[0];
- port->port_b = &scc_ports[1];
- error = request_irq(MVME147_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
- "SCC-A TX", port);
- if (error)
- goto fail;
- error = request_irq(MVME147_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
- "SCC-A status", port);
- if (error)
- goto fail_free_a_tx;
- error = request_irq(MVME147_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
- "SCC-A RX", port);
- if (error)
- goto fail_free_a_stat;
- error = request_irq(MVME147_IRQ_SCCA_SPCOND, scc_spcond_int,
- IRQF_DISABLED, "SCC-A special cond", port);
- if (error)
- goto fail_free_a_rx;
-
- {
- SCC_ACCESS_INIT(port);
-
- /* disable interrupts for this channel */
- SCCwrite(INT_AND_DMA_REG, 0);
- /* Set the interrupt vector */
- SCCwrite(INT_VECTOR_REG, MVME147_IRQ_SCC_BASE);
- /* Interrupt parameters: vector includes status, status low */
- SCCwrite(MASTER_INT_CTRL, MIC_VEC_INCL_STAT);
- SCCmod(MASTER_INT_CTRL, 0xff, MIC_MASTER_INT_ENAB);
- }
-
- /* Init channel B */
- port = &scc_ports[1];
- port->channel = CHANNEL_B;
- port->ctrlp = (volatile unsigned char *)M147_SCC_B_ADDR;
- port->datap = port->ctrlp + 1;
- port->port_a = &scc_ports[0];
- port->port_b = &scc_ports[1];
- error = request_irq(MVME147_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
- "SCC-B TX", port);
- if (error)
- goto fail_free_a_spcond;
- error = request_irq(MVME147_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
- "SCC-B status", port);
- if (error)
- goto fail_free_b_tx;
- error = request_irq(MVME147_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
- "SCC-B RX", port);
- if (error)
- goto fail_free_b_stat;
- error = request_irq(MVME147_IRQ_SCCB_SPCOND, scc_spcond_int,
- IRQF_DISABLED, "SCC-B special cond", port);
- if (error)
- goto fail_free_b_rx;
-
- {
- SCC_ACCESS_INIT(port);
-
- /* disable interrupts for this channel */
- SCCwrite(INT_AND_DMA_REG, 0);
- }
-
- /* Ensure interrupts are enabled in the PCC chip */
- m147_pcc->serial_cntrl=PCC_LEVEL_SERIAL|PCC_INT_ENAB;
-
- /* Initialise the tty driver structures and register */
- scc_init_portstructs();
- scc_init_drivers();
-
- return 0;
-
-fail_free_b_rx:
- free_irq(MVME147_IRQ_SCCB_RX, port);
-fail_free_b_stat:
- free_irq(MVME147_IRQ_SCCB_STAT, port);
-fail_free_b_tx:
- free_irq(MVME147_IRQ_SCCB_TX, port);
-fail_free_a_spcond:
- free_irq(MVME147_IRQ_SCCA_SPCOND, port);
-fail_free_a_rx:
- free_irq(MVME147_IRQ_SCCA_RX, port);
-fail_free_a_stat:
- free_irq(MVME147_IRQ_SCCA_STAT, port);
-fail_free_a_tx:
- free_irq(MVME147_IRQ_SCCA_TX, port);
-fail:
- return error;
-}
-#endif
-
-
-#ifdef CONFIG_MVME162_SCC
-static int __init mvme162_scc_init(void)
-{
- struct scc_port *port;
- int error;
-
- if (!(mvme16x_config & MVME16x_CONFIG_GOT_SCCA))
- return (-ENODEV);
-
- printk(KERN_INFO "SCC: MVME162 Serial Driver\n");
- /* Init channel A */
- port = &scc_ports[0];
- port->channel = CHANNEL_A;
- port->ctrlp = (volatile unsigned char *)MVME_SCC_A_ADDR;
- port->datap = port->ctrlp + 2;
- port->port_a = &scc_ports[0];
- port->port_b = &scc_ports[1];
- error = request_irq(MVME162_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
- "SCC-A TX", port);
- if (error)
- goto fail;
- error = request_irq(MVME162_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
- "SCC-A status", port);
- if (error)
- goto fail_free_a_tx;
- error = request_irq(MVME162_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
- "SCC-A RX", port);
- if (error)
- goto fail_free_a_stat;
- error = request_irq(MVME162_IRQ_SCCA_SPCOND, scc_spcond_int,
- IRQF_DISABLED, "SCC-A special cond", port);
- if (error)
- goto fail_free_a_rx;
-
- {
- SCC_ACCESS_INIT(port);
-
- /* disable interrupts for this channel */
- SCCwrite(INT_AND_DMA_REG, 0);
- /* Set the interrupt vector */
- SCCwrite(INT_VECTOR_REG, MVME162_IRQ_SCC_BASE);
- /* Interrupt parameters: vector includes status, status low */
- SCCwrite(MASTER_INT_CTRL, MIC_VEC_INCL_STAT);
- SCCmod(MASTER_INT_CTRL, 0xff, MIC_MASTER_INT_ENAB);
- }
-
- /* Init channel B */
- port = &scc_ports[1];
- port->channel = CHANNEL_B;
- port->ctrlp = (volatile unsigned char *)MVME_SCC_B_ADDR;
- port->datap = port->ctrlp + 2;
- port->port_a = &scc_ports[0];
- port->port_b = &scc_ports[1];
- error = request_irq(MVME162_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
- "SCC-B TX", port);
- if (error)
- goto fail_free_a_spcond;
- error = request_irq(MVME162_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
- "SCC-B status", port);
- if (error)
- goto fail_free_b_tx;
- error = request_irq(MVME162_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
- "SCC-B RX", port);
- if (error)
- goto fail_free_b_stat;
- error = request_irq(MVME162_IRQ_SCCB_SPCOND, scc_spcond_int,
- IRQF_DISABLED, "SCC-B special cond", port);
- if (error)
- goto fail_free_b_rx;
-
- {
- SCC_ACCESS_INIT(port); /* Either channel will do */
-
- /* disable interrupts for this channel */
- SCCwrite(INT_AND_DMA_REG, 0);
- }
-
- /* Ensure interrupts are enabled in the MC2 chip */
- *(volatile char *)0xfff4201d = 0x14;
-
- /* Initialise the tty driver structures and register */
- scc_init_portstructs();
- scc_init_drivers();
-
- return 0;
-
-fail_free_b_rx:
- free_irq(MVME162_IRQ_SCCB_RX, port);
-fail_free_b_stat:
- free_irq(MVME162_IRQ_SCCB_STAT, port);
-fail_free_b_tx:
- free_irq(MVME162_IRQ_SCCB_TX, port);
-fail_free_a_spcond:
- free_irq(MVME162_IRQ_SCCA_SPCOND, port);
-fail_free_a_rx:
- free_irq(MVME162_IRQ_SCCA_RX, port);
-fail_free_a_stat:
- free_irq(MVME162_IRQ_SCCA_STAT, port);
-fail_free_a_tx:
- free_irq(MVME162_IRQ_SCCA_TX, port);
-fail:
- return error;
-}
-#endif
-
-
-#ifdef CONFIG_BVME6000_SCC
-static int __init bvme6000_scc_init(void)
-{
- struct scc_port *port;
- int error;
-
- printk(KERN_INFO "SCC: BVME6000 Serial Driver\n");
- /* Init channel A */
- port = &scc_ports[0];
- port->channel = CHANNEL_A;
- port->ctrlp = (volatile unsigned char *)BVME_SCC_A_ADDR;
- port->datap = port->ctrlp + 4;
- port->port_a = &scc_ports[0];
- port->port_b = &scc_ports[1];
- error = request_irq(BVME_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
- "SCC-A TX", port);
- if (error)
- goto fail;
- error = request_irq(BVME_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
- "SCC-A status", port);
- if (error)
- goto fail_free_a_tx;
- error = request_irq(BVME_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
- "SCC-A RX", port);
- if (error)
- goto fail_free_a_stat;
- error = request_irq(BVME_IRQ_SCCA_SPCOND, scc_spcond_int,
- IRQF_DISABLED, "SCC-A special cond", port);
- if (error)
- goto fail_free_a_rx;
-
- {
- SCC_ACCESS_INIT(port);
-
- /* disable interrupts for this channel */
- SCCwrite(INT_AND_DMA_REG, 0);
- /* Set the interrupt vector */
- SCCwrite(INT_VECTOR_REG, BVME_IRQ_SCC_BASE);
- /* Interrupt parameters: vector includes status, status low */
- SCCwrite(MASTER_INT_CTRL, MIC_VEC_INCL_STAT);
- SCCmod(MASTER_INT_CTRL, 0xff, MIC_MASTER_INT_ENAB);
- }
-
- /* Init channel B */
- port = &scc_ports[1];
- port->channel = CHANNEL_B;
- port->ctrlp = (volatile unsigned char *)BVME_SCC_B_ADDR;
- port->datap = port->ctrlp + 4;
- port->port_a = &scc_ports[0];
- port->port_b = &scc_ports[1];
- error = request_irq(BVME_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
- "SCC-B TX", port);
- if (error)
- goto fail_free_a_spcond;
- error = request_irq(BVME_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
- "SCC-B status", port);
- if (error)
- goto fail_free_b_tx;
- error = request_irq(BVME_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
- "SCC-B RX", port);
- if (error)
- goto fail_free_b_stat;
- error = request_irq(BVME_IRQ_SCCB_SPCOND, scc_spcond_int,
- IRQF_DISABLED, "SCC-B special cond", port);
- if (error)
- goto fail_free_b_rx;
-
- {
- SCC_ACCESS_INIT(port); /* Either channel will do */
-
- /* disable interrupts for this channel */
- SCCwrite(INT_AND_DMA_REG, 0);
- }
-
- /* Initialise the tty driver structures and register */
- scc_init_portstructs();
- scc_init_drivers();
-
- return 0;
-
-fail:
- free_irq(BVME_IRQ_SCCA_STAT, port);
-fail_free_a_tx:
- free_irq(BVME_IRQ_SCCA_RX, port);
-fail_free_a_stat:
- free_irq(BVME_IRQ_SCCA_SPCOND, port);
-fail_free_a_rx:
- free_irq(BVME_IRQ_SCCB_TX, port);
-fail_free_a_spcond:
- free_irq(BVME_IRQ_SCCB_STAT, port);
-fail_free_b_tx:
- free_irq(BVME_IRQ_SCCB_RX, port);
-fail_free_b_stat:
- free_irq(BVME_IRQ_SCCB_SPCOND, port);
-fail_free_b_rx:
- return error;
-}
-#endif
-
-
-static int __init vme_scc_init(void)
-{
- int res = -ENODEV;
-
-#ifdef CONFIG_MVME147_SCC
- if (MACH_IS_MVME147)
- res = mvme147_scc_init();
-#endif
-#ifdef CONFIG_MVME162_SCC
- if (MACH_IS_MVME16x)
- res = mvme162_scc_init();
-#endif
-#ifdef CONFIG_BVME6000_SCC
- if (MACH_IS_BVME6000)
- res = bvme6000_scc_init();
-#endif
- return res;
-}
-
-module_init(vme_scc_init);
-
-
-/*---------------------------------------------------------------------------
- * Interrupt handlers
- *--------------------------------------------------------------------------*/
-
-static irqreturn_t scc_rx_int(int irq, void *data)
-{
- unsigned char ch;
- struct scc_port *port = data;
- struct tty_struct *tty = port->gs.port.tty;
- SCC_ACCESS_INIT(port);
-
- ch = SCCread_NB(RX_DATA_REG);
- if (!tty) {
- printk(KERN_WARNING "scc_rx_int with NULL tty!\n");
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
- return IRQ_HANDLED;
- }
- tty_insert_flip_char(tty, ch, 0);
-
- /* Check if another character is already ready; in that case, the
- * spcond_int() function must be used, because this character may have an
- * error condition that isn't signalled by the interrupt vector used!
- */
- if (SCCread(INT_PENDING_REG) &
- (port->channel == CHANNEL_A ? IPR_A_RX : IPR_B_RX)) {
- scc_spcond_int (irq, data);
- return IRQ_HANDLED;
- }
-
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
-
- tty_flip_buffer_push(tty);
- return IRQ_HANDLED;
-}
-
-
-static irqreturn_t scc_spcond_int(int irq, void *data)
-{
- struct scc_port *port = data;
- struct tty_struct *tty = port->gs.port.tty;
- unsigned char stat, ch, err;
- int int_pending_mask = port->channel == CHANNEL_A ?
- IPR_A_RX : IPR_B_RX;
- SCC_ACCESS_INIT(port);
-
- if (!tty) {
- printk(KERN_WARNING "scc_spcond_int with NULL tty!\n");
- SCCwrite(COMMAND_REG, CR_ERROR_RESET);
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
- return IRQ_HANDLED;
- }
- do {
- stat = SCCread(SPCOND_STATUS_REG);
- ch = SCCread_NB(RX_DATA_REG);
-
- if (stat & SCSR_RX_OVERRUN)
- err = TTY_OVERRUN;
- else if (stat & SCSR_PARITY_ERR)
- err = TTY_PARITY;
- else if (stat & SCSR_CRC_FRAME_ERR)
- err = TTY_FRAME;
- else
- err = 0;
-
- tty_insert_flip_char(tty, ch, err);
-
- /* ++TeSche: *All* errors have to be cleared manually,
- * else the condition persists for the next chars
- */
- if (err)
- SCCwrite(COMMAND_REG, CR_ERROR_RESET);
-
- } while(SCCread(INT_PENDING_REG) & int_pending_mask);
-
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
-
- tty_flip_buffer_push(tty);
- return IRQ_HANDLED;
-}
-
-
-static irqreturn_t scc_tx_int(int irq, void *data)
-{
- struct scc_port *port = data;
- SCC_ACCESS_INIT(port);
-
- if (!port->gs.port.tty) {
- printk(KERN_WARNING "scc_tx_int with NULL tty!\n");
- SCCmod (INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0);
- SCCwrite(COMMAND_REG, CR_TX_PENDING_RESET);
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
- return IRQ_HANDLED;
- }
- while ((SCCread_NB(STATUS_REG) & SR_TX_BUF_EMPTY)) {
- if (port->x_char) {
- SCCwrite(TX_DATA_REG, port->x_char);
- port->x_char = 0;
- }
- else if ((port->gs.xmit_cnt <= 0) ||
- port->gs.port.tty->stopped ||
- port->gs.port.tty->hw_stopped)
- break;
- else {
- SCCwrite(TX_DATA_REG, port->gs.xmit_buf[port->gs.xmit_tail++]);
- port->gs.xmit_tail = port->gs.xmit_tail & (SERIAL_XMIT_SIZE-1);
- if (--port->gs.xmit_cnt <= 0)
- break;
- }
- }
- if ((port->gs.xmit_cnt <= 0) || port->gs.port.tty->stopped ||
- port->gs.port.tty->hw_stopped) {
- /* disable tx interrupts */
- SCCmod (INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0);
- SCCwrite(COMMAND_REG, CR_TX_PENDING_RESET); /* disable tx_int on next tx underrun? */
- port->gs.port.flags &= ~GS_TX_INTEN;
- }
- if (port->gs.port.tty && port->gs.xmit_cnt <= port->gs.wakeup_chars)
- tty_wakeup(port->gs.port.tty);
-
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
- return IRQ_HANDLED;
-}
-
-
-static irqreturn_t scc_stat_int(int irq, void *data)
-{
- struct scc_port *port = data;
- unsigned channel = port->channel;
- unsigned char last_sr, sr, changed;
- SCC_ACCESS_INIT(port);
-
- last_sr = scc_last_status_reg[channel];
- sr = scc_last_status_reg[channel] = SCCread_NB(STATUS_REG);
- changed = last_sr ^ sr;
-
- if (changed & SR_DCD) {
- port->c_dcd = !!(sr & SR_DCD);
- if (!(port->gs.port.flags & ASYNC_CHECK_CD))
- ; /* Don't report DCD changes */
- else if (port->c_dcd) {
- wake_up_interruptible(&port->gs.port.open_wait);
- }
- else {
- if (port->gs.port.tty)
- tty_hangup (port->gs.port.tty);
- }
- }
- SCCwrite(COMMAND_REG, CR_EXTSTAT_RESET);
- SCCwrite_NB(COMMAND_REG, CR_HIGHEST_IUS_RESET);
- return IRQ_HANDLED;
-}
-
-
-/*---------------------------------------------------------------------------
- * generic_serial.c callback funtions
- *--------------------------------------------------------------------------*/
-
-static void scc_disable_tx_interrupts(void *ptr)
-{
- struct scc_port *port = ptr;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- local_irq_save(flags);
- SCCmod(INT_AND_DMA_REG, ~IDR_TX_INT_ENAB, 0);
- port->gs.port.flags &= ~GS_TX_INTEN;
- local_irq_restore(flags);
-}
-
-
-static void scc_enable_tx_interrupts(void *ptr)
-{
- struct scc_port *port = ptr;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- local_irq_save(flags);
- SCCmod(INT_AND_DMA_REG, 0xff, IDR_TX_INT_ENAB);
- /* restart the transmitter */
- scc_tx_int (0, port);
- local_irq_restore(flags);
-}
-
-
-static void scc_disable_rx_interrupts(void *ptr)
-{
- struct scc_port *port = ptr;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- local_irq_save(flags);
- SCCmod(INT_AND_DMA_REG,
- ~(IDR_RX_INT_MASK|IDR_PARERR_AS_SPCOND|IDR_EXTSTAT_INT_ENAB), 0);
- local_irq_restore(flags);
-}
-
-
-static void scc_enable_rx_interrupts(void *ptr)
-{
- struct scc_port *port = ptr;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- local_irq_save(flags);
- SCCmod(INT_AND_DMA_REG, 0xff,
- IDR_EXTSTAT_INT_ENAB|IDR_PARERR_AS_SPCOND|IDR_RX_INT_ALL);
- local_irq_restore(flags);
-}
-
-
-static int scc_carrier_raised(struct tty_port *port)
-{
- struct scc_port *sc = container_of(port, struct scc_port, gs.port);
- unsigned channel = sc->channel;
-
- return !!(scc_last_status_reg[channel] & SR_DCD);
-}
-
-
-static void scc_shutdown_port(void *ptr)
-{
- struct scc_port *port = ptr;
-
- port->gs.port.flags &= ~ GS_ACTIVE;
- if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) {
- scc_setsignals (port, 0, 0);
- }
-}
-
-
-static int scc_set_real_termios (void *ptr)
-{
- /* the SCC has char sizes 5,7,6,8 in that order! */
- static int chsize_map[4] = { 0, 2, 1, 3 };
- unsigned cflag, baud, chsize, channel, brgval = 0;
- unsigned long flags;
- struct scc_port *port = ptr;
- SCC_ACCESS_INIT(port);
-
- if (!port->gs.port.tty || !port->gs.port.tty->termios) return 0;
-
- channel = port->channel;
-
- if (channel == CHANNEL_A)
- return 0; /* Settings controlled by boot PROM */
-
- cflag = port->gs.port.tty->termios->c_cflag;
- baud = port->gs.baud;
- chsize = (cflag & CSIZE) >> 4;
-
- if (baud == 0) {
- /* speed == 0 -> drop DTR */
- local_irq_save(flags);
- SCCmod(TX_CTRL_REG, ~TCR_DTR, 0);
- local_irq_restore(flags);
- return 0;
- }
- else if ((MACH_IS_MVME16x && (baud < 50 || baud > 38400)) ||
- (MACH_IS_MVME147 && (baud < 50 || baud > 19200)) ||
- (MACH_IS_BVME6000 &&(baud < 50 || baud > 76800))) {
- printk(KERN_NOTICE "SCC: Bad speed requested, %d\n", baud);
- return 0;
- }
-
- if (cflag & CLOCAL)
- port->gs.port.flags &= ~ASYNC_CHECK_CD;
- else
- port->gs.port.flags |= ASYNC_CHECK_CD;
-
-#ifdef CONFIG_MVME147_SCC
- if (MACH_IS_MVME147)
- brgval = (M147_SCC_PCLK + baud/2) / (16 * 2 * baud) - 2;
-#endif
-#ifdef CONFIG_MVME162_SCC
- if (MACH_IS_MVME16x)
- brgval = (MVME_SCC_PCLK + baud/2) / (16 * 2 * baud) - 2;
-#endif
-#ifdef CONFIG_BVME6000_SCC
- if (MACH_IS_BVME6000)
- brgval = (BVME_SCC_RTxC + baud/2) / (16 * 2 * baud) - 2;
-#endif
- /* Now we have all parameters and can go to set them: */
- local_irq_save(flags);
-
- /* receiver's character size and auto-enables */
- SCCmod(RX_CTRL_REG, ~(RCR_CHSIZE_MASK|RCR_AUTO_ENAB_MODE),
- (chsize_map[chsize] << 6) |
- ((cflag & CRTSCTS) ? RCR_AUTO_ENAB_MODE : 0));
- /* parity and stop bits (both, Tx and Rx), clock mode never changes */
- SCCmod (AUX1_CTRL_REG,
- ~(A1CR_PARITY_MASK | A1CR_MODE_MASK),
- ((cflag & PARENB
- ? (cflag & PARODD ? A1CR_PARITY_ODD : A1CR_PARITY_EVEN)
- : A1CR_PARITY_NONE)
- | (cflag & CSTOPB ? A1CR_MODE_ASYNC_2 : A1CR_MODE_ASYNC_1)));
- /* sender's character size, set DTR for valid baud rate */
- SCCmod(TX_CTRL_REG, ~TCR_CHSIZE_MASK, chsize_map[chsize] << 5 | TCR_DTR);
- /* clock sources never change */
- /* disable BRG before changing the value */
- SCCmod(DPLL_CTRL_REG, ~DCR_BRG_ENAB, 0);
- /* BRG value */
- SCCwrite(TIMER_LOW_REG, brgval & 0xff);
- SCCwrite(TIMER_HIGH_REG, (brgval >> 8) & 0xff);
- /* BRG enable, and clock source never changes */
- SCCmod(DPLL_CTRL_REG, 0xff, DCR_BRG_ENAB);
-
- local_irq_restore(flags);
-
- return 0;
-}
-
-
-static int scc_chars_in_buffer (void *ptr)
-{
- struct scc_port *port = ptr;
- SCC_ACCESS_INIT(port);
-
- return (SCCread (SPCOND_STATUS_REG) & SCSR_ALL_SENT) ? 0 : 1;
-}
-
-
-/* Comment taken from sx.c (2.4.0):
- I haven't the foggiest why the decrement use count has to happen
- here. The whole linux serial drivers stuff needs to be redesigned.
- My guess is that this is a hack to minimize the impact of a bug
- elsewhere. Thinking about it some more. (try it sometime) Try
- running minicom on a serial port that is driven by a modularized
- driver. Have the modem hangup. Then remove the driver module. Then
- exit minicom. I expect an "oops". -- REW */
-
-static void scc_hungup(void *ptr)
-{
- scc_disable_tx_interrupts(ptr);
- scc_disable_rx_interrupts(ptr);
-}
-
-
-static void scc_close(void *ptr)
-{
- scc_disable_tx_interrupts(ptr);
- scc_disable_rx_interrupts(ptr);
-}
-
-
-/*---------------------------------------------------------------------------
- * Internal support functions
- *--------------------------------------------------------------------------*/
-
-static void scc_setsignals(struct scc_port *port, int dtr, int rts)
-{
- unsigned long flags;
- unsigned char t;
- SCC_ACCESS_INIT(port);
-
- local_irq_save(flags);
- t = SCCread(TX_CTRL_REG);
- if (dtr >= 0) t = dtr? (t | TCR_DTR): (t & ~TCR_DTR);
- if (rts >= 0) t = rts? (t | TCR_RTS): (t & ~TCR_RTS);
- SCCwrite(TX_CTRL_REG, t);
- local_irq_restore(flags);
-}
-
-
-static void scc_send_xchar(struct tty_struct *tty, char ch)
-{
- struct scc_port *port = tty->driver_data;
-
- port->x_char = ch;
- if (ch)
- scc_enable_tx_interrupts(port);
-}
-
-
-/*---------------------------------------------------------------------------
- * Driver entrypoints referenced from above
- *--------------------------------------------------------------------------*/
-
-static int scc_open (struct tty_struct * tty, struct file * filp)
-{
- int line = tty->index;
- int retval;
- struct scc_port *port = &scc_ports[line];
- int i, channel = port->channel;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-#if defined(CONFIG_MVME162_SCC) || defined(CONFIG_MVME147_SCC)
- static const struct {
- unsigned reg, val;
- } mvme_init_tab[] = {
- /* Values for MVME162 and MVME147 */
- /* no parity, 1 stop bit, async, 1:16 */
- { AUX1_CTRL_REG, A1CR_PARITY_NONE|A1CR_MODE_ASYNC_1|A1CR_CLKMODE_x16 },
- /* parity error is special cond, ints disabled, no DMA */
- { INT_AND_DMA_REG, IDR_PARERR_AS_SPCOND | IDR_RX_INT_DISAB },
- /* Rx 8 bits/char, no auto enable, Rx off */
- { RX_CTRL_REG, RCR_CHSIZE_8 },
- /* DTR off, Tx 8 bits/char, RTS off, Tx off */
- { TX_CTRL_REG, TCR_CHSIZE_8 },
- /* special features off */
- { AUX2_CTRL_REG, 0 },
- { CLK_CTRL_REG, CCR_RXCLK_BRG | CCR_TXCLK_BRG },
- { DPLL_CTRL_REG, DCR_BRG_ENAB | DCR_BRG_USE_PCLK },
- /* Start Rx */
- { RX_CTRL_REG, RCR_RX_ENAB | RCR_CHSIZE_8 },
- /* Start Tx */
- { TX_CTRL_REG, TCR_TX_ENAB | TCR_RTS | TCR_DTR | TCR_CHSIZE_8 },
- /* Ext/Stat ints: DCD only */
- { INT_CTRL_REG, ICR_ENAB_DCD_INT },
- /* Reset Ext/Stat ints */
- { COMMAND_REG, CR_EXTSTAT_RESET },
- /* ...again */
- { COMMAND_REG, CR_EXTSTAT_RESET },
- };
-#endif
-#if defined(CONFIG_BVME6000_SCC)
- static const struct {
- unsigned reg, val;
- } bvme_init_tab[] = {
- /* Values for BVME6000 */
- /* no parity, 1 stop bit, async, 1:16 */
- { AUX1_CTRL_REG, A1CR_PARITY_NONE|A1CR_MODE_ASYNC_1|A1CR_CLKMODE_x16 },
- /* parity error is special cond, ints disabled, no DMA */
- { INT_AND_DMA_REG, IDR_PARERR_AS_SPCOND | IDR_RX_INT_DISAB },
- /* Rx 8 bits/char, no auto enable, Rx off */
- { RX_CTRL_REG, RCR_CHSIZE_8 },
- /* DTR off, Tx 8 bits/char, RTS off, Tx off */
- { TX_CTRL_REG, TCR_CHSIZE_8 },
- /* special features off */
- { AUX2_CTRL_REG, 0 },
- { CLK_CTRL_REG, CCR_RTxC_XTAL | CCR_RXCLK_BRG | CCR_TXCLK_BRG },
- { DPLL_CTRL_REG, DCR_BRG_ENAB },
- /* Start Rx */
- { RX_CTRL_REG, RCR_RX_ENAB | RCR_CHSIZE_8 },
- /* Start Tx */
- { TX_CTRL_REG, TCR_TX_ENAB | TCR_RTS | TCR_DTR | TCR_CHSIZE_8 },
- /* Ext/Stat ints: DCD only */
- { INT_CTRL_REG, ICR_ENAB_DCD_INT },
- /* Reset Ext/Stat ints */
- { COMMAND_REG, CR_EXTSTAT_RESET },
- /* ...again */
- { COMMAND_REG, CR_EXTSTAT_RESET },
- };
-#endif
- if (!(port->gs.port.flags & ASYNC_INITIALIZED)) {
- local_irq_save(flags);
-#if defined(CONFIG_MVME147_SCC) || defined(CONFIG_MVME162_SCC)
- if (MACH_IS_MVME147 || MACH_IS_MVME16x) {
- for (i = 0; i < ARRAY_SIZE(mvme_init_tab); ++i)
- SCCwrite(mvme_init_tab[i].reg, mvme_init_tab[i].val);
- }
-#endif
-#if defined(CONFIG_BVME6000_SCC)
- if (MACH_IS_BVME6000) {
- for (i = 0; i < ARRAY_SIZE(bvme_init_tab); ++i)
- SCCwrite(bvme_init_tab[i].reg, bvme_init_tab[i].val);
- }
-#endif
-
- /* remember status register for detection of DCD and CTS changes */
- scc_last_status_reg[channel] = SCCread(STATUS_REG);
-
- port->c_dcd = 0; /* Prevent initial 1->0 interrupt */
- scc_setsignals (port, 1,1);
- local_irq_restore(flags);
- }
-
- tty->driver_data = port;
- port->gs.port.tty = tty;
- port->gs.port.count++;
- retval = gs_init_port(&port->gs);
- if (retval) {
- port->gs.port.count--;
- return retval;
- }
- port->gs.port.flags |= GS_ACTIVE;
- retval = gs_block_til_ready(port, filp);
-
- if (retval) {
- port->gs.port.count--;
- return retval;
- }
-
- port->c_dcd = tty_port_carrier_raised(&port->gs.port);
-
- scc_enable_rx_interrupts(port);
-
- return 0;
-}
-
-
-static void scc_throttle (struct tty_struct * tty)
-{
- struct scc_port *port = tty->driver_data;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- if (tty->termios->c_cflag & CRTSCTS) {
- local_irq_save(flags);
- SCCmod(TX_CTRL_REG, ~TCR_RTS, 0);
- local_irq_restore(flags);
- }
- if (I_IXOFF(tty))
- scc_send_xchar(tty, STOP_CHAR(tty));
-}
-
-
-static void scc_unthrottle (struct tty_struct * tty)
-{
- struct scc_port *port = tty->driver_data;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- if (tty->termios->c_cflag & CRTSCTS) {
- local_irq_save(flags);
- SCCmod(TX_CTRL_REG, 0xff, TCR_RTS);
- local_irq_restore(flags);
- }
- if (I_IXOFF(tty))
- scc_send_xchar(tty, START_CHAR(tty));
-}
-
-
-static int scc_ioctl(struct tty_struct *tty, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return -ENOIOCTLCMD;
-}
-
-
-static int scc_break_ctl(struct tty_struct *tty, int break_state)
-{
- struct scc_port *port = tty->driver_data;
- unsigned long flags;
- SCC_ACCESS_INIT(port);
-
- local_irq_save(flags);
- SCCmod(TX_CTRL_REG, ~TCR_SEND_BREAK,
- break_state ? TCR_SEND_BREAK : 0);
- local_irq_restore(flags);
- return 0;
-}
-
-
-/*---------------------------------------------------------------------------
- * Serial console stuff...
- *--------------------------------------------------------------------------*/
-
-#define scc_delay() do { __asm__ __volatile__ (" nop; nop"); } while (0)
-
-static void scc_ch_write (char ch)
-{
- volatile char *p = NULL;
-
-#ifdef CONFIG_MVME147_SCC
- if (MACH_IS_MVME147)
- p = (volatile char *)M147_SCC_A_ADDR;
-#endif
-#ifdef CONFIG_MVME162_SCC
- if (MACH_IS_MVME16x)
- p = (volatile char *)MVME_SCC_A_ADDR;
-#endif
-#ifdef CONFIG_BVME6000_SCC
- if (MACH_IS_BVME6000)
- p = (volatile char *)BVME_SCC_A_ADDR;
-#endif
-
- do {
- scc_delay();
- }
- while (!(*p & 4));
- scc_delay();
- *p = 8;
- scc_delay();
- *p = ch;
-}
-
-/* The console must be locked when we get here. */
-
-static void scc_console_write (struct console *co, const char *str, unsigned count)
-{
- unsigned long flags;
-
- local_irq_save(flags);
-
- while (count--)
- {
- if (*str == '\n')
- scc_ch_write ('\r');
- scc_ch_write (*str++);
- }
- local_irq_restore(flags);
-}
-
-static struct tty_driver *scc_console_device(struct console *c, int *index)
-{
- *index = c->index;
- return scc_driver;
-}
-
-static struct console sercons = {
- .name = "ttyS",
- .write = scc_console_write,
- .device = scc_console_device,
- .flags = CON_PRINTBUFFER,
- .index = -1,
-};
-
-
-static int __init vme_scc_console_init(void)
-{
- if (vme_brdtype == VME_TYPE_MVME147 ||
- vme_brdtype == VME_TYPE_MVME162 ||
- vme_brdtype == VME_TYPE_MVME172 ||
- vme_brdtype == VME_TYPE_BVME4000 ||
- vme_brdtype == VME_TYPE_BVME6000)
- register_console(&sercons);
- return 0;
-}
-console_initcall(vme_scc_console_init);