diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-10 15:05:02 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-10 15:05:02 -0700 |
commit | 9895850b23886e030cd1e7241d5529a57e969c3d (patch) | |
tree | 1061626db450aeb72dcfcd247c24b33e5238c8c4 /drivers/usb/serial | |
parent | fc385c313275b114bc6ad36e60c5177d63250548 (diff) | |
parent | b58af4066d240b18b43f202e07b9ec7461d90b17 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (148 commits)
USB: serial: fix stalled writes
USB: remove fake "address-of" expressions
USB: fix thread-unsafe anchor utiliy routines
USB: usbtest: support test device with only one iso-in or iso-out endpoint
USB: usbtest: avoid to free coherent buffer in atomic context
USB: xhci: Set DMA mask for host.
USB: xhci: Don't flush doorbell writes.
USB: xhci: Reduce reads and writes of interrupter registers.
USB: xhci: Make xhci_set_hc_event_deq() static.
USB: xhci: Minimize HW event ring dequeue pointer writes.
USB: xhci: Make xhci_handle_event() static.
USB: xhci: Remove unnecessary reads of IRQ_PENDING register.
USB: xhci: Performance - move xhci_work() into xhci_irq()
USB: xhci: Performance - move interrupt handlers into xhci-ring.c
USB: xhci: Performance - move functions that find ep ring.
USB:: fix linux/usb.h kernel-doc warnings
USB: add USB serial ssu100 driver
USB: usb-storage: implement autosuspend
USB: ehci: fix remove of ehci debugfs dir
USB: Add USB 2.0 to ssb ohci driver
...
Diffstat (limited to 'drivers/usb/serial')
-rw-r--r-- | drivers/usb/serial/Kconfig | 9 | ||||
-rw-r--r-- | drivers/usb/serial/Makefile | 1 | ||||
-rw-r--r-- | drivers/usb/serial/cp210x.c | 4 | ||||
-rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 4 | ||||
-rw-r--r-- | drivers/usb/serial/ftdi_sio_ids.h | 10 | ||||
-rw-r--r-- | drivers/usb/serial/generic.c | 15 | ||||
-rw-r--r-- | drivers/usb/serial/io_ti.c | 4 | ||||
-rw-r--r-- | drivers/usb/serial/ipaq.c | 1 | ||||
-rw-r--r-- | drivers/usb/serial/iuu_phoenix.c | 54 | ||||
-rw-r--r-- | drivers/usb/serial/option.c | 17 | ||||
-rw-r--r-- | drivers/usb/serial/ssu100.c | 698 | ||||
-rw-r--r-- | drivers/usb/serial/usb-serial.c | 32 |
12 files changed, 808 insertions, 41 deletions
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index bd8aab0ef1c..916b2b6d765 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig @@ -642,6 +642,15 @@ config USB_SERIAL_ZIO To compile this driver as a module, choose M here: the module will be called zio. +config USB_SERIAL_SSU100 + tristate "USB Quatech SSU-100 Single Port Serial Driver" + help + Say Y here if you want to use the Quatech SSU-100 single + port usb to serial adapter. + + To compile this driver as a module, choose M here: the + module will be called ssu100. + config USB_SERIAL_DEBUG tristate "USB Debugging Device" help diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index e54c728c016..40ebe17b6ea 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile @@ -51,6 +51,7 @@ obj-$(CONFIG_USB_SERIAL_SAFE) += safe_serial.o obj-$(CONFIG_USB_SERIAL_SIEMENS_MPI) += siemens_mpi.o obj-$(CONFIG_USB_SERIAL_SIERRAWIRELESS) += sierra.o obj-$(CONFIG_USB_SERIAL_SPCP8X5) += spcp8x5.o +obj-$(CONFIG_USB_SERIAL_SSU100) += ssu100.o obj-$(CONFIG_USB_SERIAL_SYMBOL) += symbolserial.o obj-$(CONFIG_USB_SERIAL_WWAN) += usb_wwan.o obj-$(CONFIG_USB_SERIAL_TI) += ti_usb_3410_5052.o diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 8b8c7976b4c..2bef4415c19 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -126,6 +126,10 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */ { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */ + { USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */ + { USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */ + { USB_DEVICE(0x16DC, 0x0012) }, /* W-IE-NE-R Plein & Baus GmbH MPOD Multi Channel Power Supply */ + { USB_DEVICE(0x16DC, 0x0015) }, /* W-IE-NE-R Plein & Baus GmbH CML Control, Monitoring and Data Logger */ { } /* Terminating Entry */ }; diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index e298dc4baed..eb12d9b096b 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -157,6 +157,9 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_5_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_6_PID) }, { USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_7_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USINT_CAT_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USINT_WKEY_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_USINT_RS232_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) }, @@ -746,6 +749,7 @@ static struct usb_device_id id_table_combined [] = { .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(FTDI_VID, XVERVE_SIGNALYZER_SH4_PID), .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, + { USB_DEVICE(FTDI_VID, SEGWAY_RMP200_PID) }, { }, /* Optional parameter entry */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index d01946db8fa..6e612c52e76 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -40,6 +40,11 @@ #define FTDI_NXTCAM_PID 0xABB8 /* NXTCam for Mindstorms NXT */ +/* US Interface Navigator (http://www.usinterface.com/) */ +#define FTDI_USINT_CAT_PID 0xb810 /* Navigator CAT and 2nd PTT lines */ +#define FTDI_USINT_WKEY_PID 0xb811 /* Navigator WKEY and FSK lines */ +#define FTDI_USINT_RS232_PID 0xb812 /* Navigator RS232 and CONFIG lines */ + /* OOCDlink by Joern Kaipf <joernk@web.de> * (http://www.joernonline.de/dw/doku.php?id=start&idx=projects:oocdlink) */ #define FTDI_OOCDLINK_PID 0xbaf8 /* Amontec JTAGkey */ @@ -1032,3 +1037,8 @@ #define XVERVE_SIGNALYZER_SH2_PID 0xBCA2 #define XVERVE_SIGNALYZER_SH4_PID 0xBCA4 +/* + * Segway Robotic Mobility Platform USB interface (using VID 0x0403) + * Submitted by John G. Rogers + */ +#define SEGWAY_RMP200_PID 0xe729 diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index a817ced8283..ca92f67747c 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -208,18 +208,23 @@ retry: urb->transfer_buffer_length = count; usb_serial_debug_data(debug, &port->dev, __func__, count, urb->transfer_buffer); + spin_lock_irqsave(&port->lock, flags); + port->tx_bytes += count; + spin_unlock_irqrestore(&port->lock, flags); + + clear_bit(i, &port->write_urbs_free); result = usb_submit_urb(urb, GFP_ATOMIC); if (result) { dev_err(&port->dev, "%s - error submitting urb: %d\n", __func__, result); + set_bit(i, &port->write_urbs_free); + spin_lock_irqsave(&port->lock, flags); + port->tx_bytes -= count; + spin_unlock_irqrestore(&port->lock, flags); + clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags); return result; } - clear_bit(i, &port->write_urbs_free); - - spin_lock_irqsave(&port->lock, flags); - port->tx_bytes += count; - spin_unlock_irqrestore(&port->lock, flags); /* Try sending off another urb, unless in irq context (in which case * there will be no free urb). */ diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 0fca2659206..dc47f986df5 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -1298,7 +1298,7 @@ static int download_fw(struct edgeport_serial *serial) kfree(header); kfree(rom_desc); kfree(ti_manuf_desc); - return status; + return -EINVAL; } /* verify the write -- must do this in order for @@ -1321,7 +1321,7 @@ static int download_fw(struct edgeport_serial *serial) kfree(header); kfree(rom_desc); kfree(ti_manuf_desc); - return status; + return -EINVAL; } kfree(vheader); diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 28913fa95fb..4735931b4c7 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -534,7 +534,6 @@ static struct usb_device_id ipaq_id_table [] = { { USB_DEVICE(0x413C, 0x4009) }, /* Dell Axim USB Sync */ { USB_DEVICE(0x4505, 0x0010) }, /* Smartphone */ { USB_DEVICE(0x5E04, 0xCE00) }, /* SAGEM Wireless Assistant */ - { USB_DEVICE(0x0BB4, 0x00CF) }, /* HTC smartphone modems */ { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 74551cb2e8e..efc72113216 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -1,6 +1,8 @@ /* * Infinity Unlimited USB Phoenix driver * + * Copyright (C) 2010 James Courtier-Dutton (James@superbug.co.uk) + * Copyright (C) 2007 Alain Degreffe (eczema@ecze.com) * * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás) @@ -40,7 +42,7 @@ static int debug; /* * Version Information */ -#define DRIVER_VERSION "v0.11" +#define DRIVER_VERSION "v0.12" #define DRIVER_DESC "Infinity USB Unlimited Phoenix driver" static const struct usb_device_id id_table[] = { @@ -81,6 +83,9 @@ struct iuu_private { u8 *dbgbuf; /* debug buffer */ u8 len; int vcc; /* vcc (either 3 or 5 V) */ + u32 baud; + u32 boost; + u32 clk; }; @@ -157,13 +162,14 @@ static int iuu_tiocmset(struct tty_struct *tty, struct file *file, port->number, set, clear); spin_lock_irqsave(&priv->lock, flags); - if (set & TIOCM_RTS) - priv->tiostatus = TIOCM_RTS; - if (!(set & TIOCM_RTS) && priv->tiostatus == TIOCM_RTS) { + if ((set & TIOCM_RTS) && !(priv->tiostatus == TIOCM_RTS)) { dbg("%s TIOCMSET RESET called !!!", __func__); priv->reset = 1; } + if (set & TIOCM_RTS) + priv->tiostatus = TIOCM_RTS; + spin_unlock_irqrestore(&priv->lock, flags); return 0; } @@ -851,20 +857,24 @@ static int iuu_uart_off(struct usb_serial_port *port) return status; } -static int iuu_uart_baud(struct usb_serial_port *port, u32 baud, +static int iuu_uart_baud(struct usb_serial_port *port, u32 baud_base, u32 *actual, u8 parity) { int status; + u32 baud; u8 *dataout; u8 DataCount = 0; u8 T1Frekvens = 0; u8 T1reload = 0; unsigned int T1FrekvensHZ = 0; + dbg("%s - enter baud_base=%d", __func__, baud_base); dataout = kmalloc(sizeof(u8) * 5, GFP_KERNEL); if (!dataout) return -ENOMEM; + /*baud = (((priv->clk / 35) * baud_base) / 100000); */ + baud = baud_base; if (baud < 1200 || baud > 230400) { kfree(dataout); @@ -948,15 +958,20 @@ static void iuu_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { const u32 supported_mask = CMSPAR|PARENB|PARODD; - + struct iuu_private *priv = usb_get_serial_port_data(port); unsigned int cflag = tty->termios->c_cflag; int status; u32 actual; u32 parity; int csize = CS7; - int baud = 9600; /* Fixed for the moment */ + int baud; u32 newval = cflag & supported_mask; + /* Just use the ospeed. ispeed should be the same. */ + baud = tty->termios->c_ospeed; + + dbg("%s - enter c_ospeed or baud=%d", __func__, baud); + /* compute the parity parameter */ parity = 0; if (cflag & CMSPAR) { /* Using mark space */ @@ -976,15 +991,15 @@ static void iuu_set_termios(struct tty_struct *tty, /* set it */ status = iuu_uart_baud(port, - (clockmode == 2) ? 16457 : 9600 * boost / 100, + baud * priv->boost / 100, &actual, parity); /* set the termios value to the real one, so the user now what has * changed. We support few fields so its easies to copy the old hw * settings back over and then adjust them */ - if (old_termios) - tty_termios_copy_hw(tty->termios, old_termios); + if (old_termios) + tty_termios_copy_hw(tty->termios, old_termios); if (status != 0) /* Set failed - return old bits */ return; /* Re-encode speed, parity and csize */ @@ -1018,6 +1033,7 @@ static void iuu_close(struct usb_serial_port *port) static void iuu_init_termios(struct tty_struct *tty) { + dbg("%s - enter", __func__); *(tty->termios) = tty_std_termios; tty->termios->c_cflag = CLOCAL | CREAD | CS8 | B9600 | TIOCM_CTS | CSTOPB | PARENB; @@ -1033,10 +1049,16 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) struct usb_serial *serial = port->serial; u8 *buf; int result; + int baud; u32 actual; struct iuu_private *priv = usb_get_serial_port_data(port); - dbg("%s - port %d", __func__, port->number); + baud = tty->termios->c_ospeed; + tty->termios->c_ispeed = baud; + /* Re-encode speed */ + tty_encode_baud_rate(tty, baud, baud); + + dbg("%s - port %d, baud %d", __func__, port->number, baud); usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); @@ -1071,23 +1093,29 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) iuu_uart_on(port); if (boost < 100) boost = 100; + priv->boost = boost; + priv->baud = baud; switch (clockmode) { case 2: /* 3.680 Mhz */ + priv->clk = IUU_CLK_3680000; iuu_clk(port, IUU_CLK_3680000 * boost / 100); result = - iuu_uart_baud(port, 9600 * boost / 100, &actual, + iuu_uart_baud(port, baud * boost / 100, &actual, IUU_PARITY_EVEN); break; case 3: /* 6.00 Mhz */ iuu_clk(port, IUU_CLK_6000000 * boost / 100); + priv->clk = IUU_CLK_6000000; + /* Ratio of 6000000 to 3500000 for baud 9600 */ result = iuu_uart_baud(port, 16457 * boost / 100, &actual, IUU_PARITY_EVEN); break; default: /* 3.579 Mhz */ iuu_clk(port, IUU_CLK_3579000 * boost / 100); + priv->clk = IUU_CLK_3579000; result = - iuu_uart_baud(port, 9600 * boost / 100, &actual, + iuu_uart_baud(port, baud * boost / 100, &actual, IUU_PARITY_EVEN); } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 5cd30e4345c..9fc6ea2c681 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -145,7 +145,10 @@ static void option_instat_callback(struct urb *urb); #define HUAWEI_PRODUCT_E143D 0x143D #define HUAWEI_PRODUCT_E143E 0x143E #define HUAWEI_PRODUCT_E143F 0x143F +#define HUAWEI_PRODUCT_K4505 0x1464 +#define HUAWEI_PRODUCT_K3765 0x1465 #define HUAWEI_PRODUCT_E14AC 0x14AC +#define HUAWEI_PRODUCT_ETS1220 0x1803 #define QUANTA_VENDOR_ID 0x0408 #define QUANTA_PRODUCT_Q101 0xEA02 @@ -264,9 +267,6 @@ static void option_instat_callback(struct urb *urb); #define BANDRICH_PRODUCT_1011 0x1011 #define BANDRICH_PRODUCT_1012 0x1012 -#define AMOI_VENDOR_ID 0x1614 -#define AMOI_PRODUCT_9508 0x0800 - #define QUALCOMM_VENDOR_ID 0x05C6 #define CMOTECH_VENDOR_ID 0x16d8 @@ -482,8 +482,10 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4505, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ETS1220, 0xff, 0xff, 0xff) }, { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC) }, - { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, /* Novatel Merlin EX720/V740/X720 */ @@ -1017,6 +1019,13 @@ static int option_probe(struct usb_serial *serial, serial->interface->cur_altsetting->desc.bInterfaceClass != 0xff) return -ENODEV; + /* Don't bind network interfaces on Huawei K3765 & K4505 */ + if (serial->dev->descriptor.idVendor == HUAWEI_VENDOR_ID && + (serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K3765 || + serial->dev->descriptor.idProduct == HUAWEI_PRODUCT_K4505) && + serial->interface->cur_altsetting->desc.bInterfaceNumber == 1) + return -ENODEV; + data = serial->private = kzalloc(sizeof(struct usb_wwan_intf_private), GFP_KERNEL); if (!data) diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c new file mode 100644 index 00000000000..6e82d4f54bc --- /dev/null +++ b/drivers/usb/serial/ssu100.c @@ -0,0 +1,698 @@ +/* + * usb-serial driver for Quatech SSU-100 + * + * based on ftdi_sio.c and the original serqt_usb.c from Quatech + * + */ + +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/tty.h> +#include <linux/tty_driver.h> +#include <linux/tty_flip.h> +#include <linux/module.h> +#include <linux/serial.h> +#include <linux/usb.h> +#include <linux/usb/serial.h> +#include <linux/uaccess.h> + +#define QT_OPEN_CLOSE_CHANNEL 0xca +#define QT_SET_GET_DEVICE 0xc2 +#define QT_SET_GET_REGISTER 0xc0 +#define QT_GET_SET_PREBUF_TRIG_LVL 0xcc +#define QT_SET_ATF 0xcd +#define QT_GET_SET_UART 0xc1 +#define QT_TRANSFER_IN 0xc0 +#define QT_HW_FLOW_CONTROL_MASK 0xc5 +#define QT_SW_FLOW_CONTROL_MASK 0xc6 + +#define MODEM_CTL_REGISTER 0x04 +#define MODEM_STATUS_REGISTER 0x06 + + +#define SERIAL_LSR_OE 0x02 +#define SERIAL_LSR_PE 0x04 +#define SERIAL_LSR_FE 0x08 +#define SERIAL_LSR_BI 0x10 + +#define SERIAL_LSR_TEMT 0x40 + +#define SERIAL_MCR_DTR 0x01 +#define SERIAL_MCR_RTS 0x02 +#define SERIAL_MCR_LOOP 0x10 + +#define SERIAL_MSR_CTS 0x10 +#define SERIAL_MSR_CD 0x80 +#define SERIAL_MSR_RI 0x40 +#define SERIAL_MSR_DSR 0x20 +#define SERIAL_MSR_MASK 0xf0 + +#define SERIAL_CRTSCTS ((SERIAL_MCR_RTS << 8) | SERIAL_MSR_CTS) + +#define SERIAL_8_DATA 0x03 +#define SERIAL_7_DATA 0x02 +#define SERIAL_6_DATA 0x01 +#define SERIAL_5_DATA 0x00 + +#define SERIAL_ODD_PARITY 0X08 +#define SERIAL_EVEN_PARITY 0X18 + +#define MAX_BAUD_RATE 460800 + +#define ATC_DISABLED 0x00 +#define DUPMODE_BITS 0xc0 +#define RR_BITS 0x03 +#define LOOPMODE_BITS 0x41 +#define RS232_MODE 0x00 +#define RTSCTS_TO_CONNECTOR 0x40 +#define CLKS_X4 0x02 +#define FULLPWRBIT 0x00000080 +#define NEXT_BOARD_POWER_BIT 0x00000004 + +static int debug = 1; + +/* Version Information */ +#define DRIVER_VERSION "v0.1" +#define DRIVER_DESC "Quatech SSU-100 USB to Serial Driver" + +#define USB_VENDOR_ID_QUATECH 0x061d /* Quatech VID */ +#define QUATECH_SSU100 0xC020 /* SSU100 */ + +static const struct usb_device_id id_table[] = { + {USB_DEVICE(USB_VENDOR_ID_QUATECH, QUATECH_SSU100)}, + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, id_table); + + +static struct usb_driver ssu100_driver = { + .name = "ssu100", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, + .suspend = usb_serial_suspend, + .resume = usb_serial_resume, + .no_dynamic_id = 1, + .supports_autosuspend = 1, +}; + +struct ssu100_port_private { + u8 shadowLSR; + u8 shadowMSR; + wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ + unsigned short max_packet_size; +}; + +static void ssu100_release(struct usb_serial *serial) +{ + struct ssu100_port_private *priv = usb_get_serial_port_data(*serial->port); + + dbg("%s", __func__); + kfree(priv); +} + +static inline int ssu100_control_msg(struct usb_device *dev, + u8 request, u16 data, u16 index) +{ + return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + request, 0x40, data, index, + NULL, 0, 300); +} + +static inline int ssu100_setdevice(struct usb_device *dev, u8 *data) +{ + u16 x = ((u16)(data[1] << 8) | (u16)(data[0])); + + return ssu100_control_msg(dev, QT_SET_GET_DEVICE, x, 0); +} + + +static inline int ssu100_getdevice(struct usb_device *dev, u8 *data) +{ + return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + QT_SET_GET_DEVICE, 0xc0, 0, 0, + data, 3, 300); +} + +static inline int ssu100_getregister(struct usb_device *dev, + unsigned short uart, + unsigned short reg, + u8 *data) +{ + return usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + QT_SET_GET_REGISTER, 0xc0, reg, + uart, data, sizeof(*data), 300); + +} + + +static inline int ssu100_setregister(struct usb_device *dev, + unsigned short uart, + u16 data) +{ + u16 value = (data << 8) | MODEM_CTL_REGISTER; + + return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + QT_SET_GET_REGISTER, 0x40, value, uart, + NULL, 0, 300); + +} + +#define set_mctrl(dev, set) update_mctrl((dev), (set), 0) +#define clear_mctrl(dev, clear) update_mctrl((dev), 0, (clear)) + +/* these do not deal with device that have more than 1 port */ +static inline int update_mctrl(struct usb_device *dev, unsigned int set, + unsigned int clear) +{ + unsigned urb_value; + int result; + + if (((set | clear) & (TIOCM_DTR | TIOCM_RTS)) == 0) { + dbg("%s - DTR|RTS not being set|cleared", __func__); + return 0; /* no change */ + } + + clear &= ~set; /* 'set' takes precedence over 'clear' */ + urb_value = 0; + if (set & TIOCM_DTR) + urb_value |= SERIAL_MCR_DTR; + if (set & TIOCM_RTS) + urb_value |= SERIAL_MCR_RTS; + + result = ssu100_setregister(dev, 0, urb_value); + if (result < 0) + dbg("%s Error from MODEM_CTRL urb", __func__); + + return result; +} + +static int ssu100_initdevice(struct usb_device *dev) +{ + u8 *data; + int result = 0; + + dbg("%s", __func__); + + data = kzalloc(3, GFP_KERNEL); + if (!data) + return -ENOMEM; + + result = ssu100_getdevice(dev, data); + if (result < 0) { + dbg("%s - get_device failed %i", __func__, result); + goto out; + } + + data[1] &= ~FULLPWRBIT; + + result = ssu100_setdevice(dev, data); + if (result < 0) { + dbg("%s - setdevice failed %i", __func__, result); + goto out; + } + + result = ssu100_control_msg(dev, QT_GET_SET_PREBUF_TRIG_LVL, 128, 0); + if (result < 0) { + dbg("%s - set prebuffer level failed %i", __func__, result); + goto out; + } + + result = ssu100_control_msg(dev, QT_SET_ATF, ATC_DISABLED, 0); + if (result < 0) { + dbg("%s - set ATFprebuffer level failed %i", __func__, result); + goto out; + } + + result = ssu100_getdevice(dev, data); + if (result < 0) { + dbg("%s - get_device failed %i", __func__, result); + goto out; + } + + data[0] &= ~(RR_BITS | DUPMODE_BITS); + data[0] |= CLKS_X4; + data[1] &= ~(LOOPMODE_BITS); + data[1] |= RS232_MODE; + + result = ssu100_setdevice(dev, data); + if (result < 0) { + dbg("%s - setdevice failed %i", __func__, result); + goto out; + } + +out: kfree(data); + return result; + +} + + +static void ssu100_set_termios(struct tty_struct *tty, + struct usb_serial_port *port, + struct ktermios *old_termios) +{ + struct usb_device *dev = port->serial->dev; + struct ktermios *termios = tty->termios; + u16 baud, divisor, remainder; + unsigned int cflag = termios->c_cflag; + u16 urb_value = 0; /* will hold the new flags */ + int result; + + dbg("%s", __func__); + + if (cflag & PARENB) { + if (cflag & PARODD) + urb_value |= SERIAL_ODD_PARITY; + else + urb_value |= SERIAL_EVEN_PARITY; + } + + switch (cflag & CSIZE) { + case CS5: + urb_value |= SERIAL_5_DATA; + break; + case CS6: + urb_value |= SERIAL_6_DATA; + break; + case CS7: + urb_value |= SERIAL_7_DATA; + break; + default: + case CS8: + urb_value |= SERIAL_8_DATA; + break; + } + + baud = tty_get_baud_rate(tty); + if (!baud) + baud = 9600; + + dbg("%s - got baud = %d\n", __func__, baud); + + + divisor = MAX_BAUD_RATE / baud; + remainder = MAX_BAUD_RATE % baud; + if (((remainder * 2) >= baud) && (baud != 110)) + divisor++; + + urb_value = urb_value << 8; + + result = ssu100_control_msg(dev, QT_GET_SET_UART, divisor, urb_value); + if (result < 0) + dbg("%s - set uart failed", __func__); + + if (cflag & CRTSCTS) + result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK, + SERIAL_CRTSCTS, 0); + else + result = ssu100_control_msg(dev, QT_HW_FLOW_CONTROL_MASK, + 0, 0); + if (result < 0) + dbg("%s - set HW flow control failed", __func__); + + if (I_IXOFF(tty) || I_IXON(tty)) { + u16 x = ((u16)(START_CHAR(tty) << 8) | (u16)(STOP_CHAR(tty))); + + result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK, + x, 0); + } else + result = ssu100_control_msg(dev, QT_SW_FLOW_CONTROL_MASK, + 0, 0); + + if (result < 0) + dbg("%s - set SW flow control failed", __func__); + +} + + +static int ssu100_open(struct tty_struct *tty, struct usb_serial_port *port) +{ + struct usb_device *dev = port->serial->dev; + struct ssu100_port_private *priv = usb_get_serial_port_data(port); + u8 *data; + int result; + + dbg("%s - port %d", __func__, port->number); + + data = kzalloc(2, GFP_KERNEL); + if (!data) + return -ENOMEM; + + result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), + QT_OPEN_CLOSE_CHANNEL, + QT_TRANSFER_IN, 0x01, + 0, data, 2, 300); + if (result < 0) { + dbg("%s - open failed %i", __func__, result); + kfree(data); + return result; + } + + priv->shadowLSR = data[0] & (SERIAL_LSR_OE | SERIAL_LSR_PE | + SERIAL_LSR_FE | SERIAL_LSR_BI); + + priv->shadowMSR = data[1] & (SERIAL_MSR_CTS | SERIAL_MSR_DSR | + SERIAL_MSR_RI | SERIAL_MSR_CD); + + kfree(data); + +/* set to 9600 */ + result = ssu100_control_msg(dev, QT_GET_SET_UART, 0x30, 0x0300); + if (result < 0) + dbg("%s - set uart failed", __func__); + + if (tty) + ssu100_set_termios(tty, port, tty->termios); + + return usb_serial_generic_open(tty, port); +} + +static void ssu100_close(struct usb_serial_port *port) +{ + dbg("%s", __func__); + usb_serial_generic_close(port); +} + +static int get_serial_info(struct usb_serial_port *port, + struct serial_struct __user *retinfo) +{ + struct serial_struct tmp; + + if (!retinfo) + return -EFAULT; + + memset(&tmp, 0, sizeof(tmp)); + tmp.line = port->serial->minor; + tmp.port = 0; + tmp.irq = 0; + tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; + tmp.xmit_fifo_size = port->bulk_out_size; + tmp.baud_base = 9600; + tmp.close_delay = 5*HZ; + tmp.closing_wait = 30*HZ; + + if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) + return -EFAULT; + return 0; +} + +static int ssu100_ioctl(struct tty_struct *tty, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct usb_serial_port *port = tty->driver_data; + struct ssu100_port_private *priv = usb_get_serial_port_data(port); + + dbg("%s cmd 0x%04x", __func__, cmd); + + switch (cmd) { + case TIOCGSERIAL: + return get_serial_info(port, + (struct serial_struct __user *) arg); + + case TIOCMIWAIT: + while (priv != NULL) { + u8 prevMSR = priv->shadowMSR & SERIAL_MSR_MASK; + interruptible_sleep_on(&priv->delta_msr_wait); + /* see if a signal did it */ + if (signal_pending(current)) + return -ERESTARTSYS; + else { + u8 diff = (priv->shadowMSR & SERIAL_MSR_MASK) ^ prevMSR; + if (!diff) + return -EIO; /* no change => error */ + + /* Return 0 if caller wanted to know about + these bits */ + + if (((arg & TIOCM_RNG) && (diff & SERIAL_MSR_RI)) || + ((arg & TIOCM_DSR) && (diff & SERIAL_MSR_DSR)) || + ((arg & TIOCM_CD) && (diff & SERIAL_MSR_CD)) || + ((arg & TIOCM_CTS) && (diff & SERIAL_MSR_CTS))) + return 0; + } + } + return 0; + + default: + break; + } + + dbg("%s arg not supported", __func__); + + return -ENOIOCTLCMD; +} + +static void ssu100_set_max_packet_size(struct usb_serial_port *port) +{ + struct ssu100_port_private *priv = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + struct usb_device *udev = serial->dev; + + struct usb_interface *interface = serial->interface; + struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc; + + unsigned num_endpoints; + int i; + + num_endpoints = interface->cur_altsetting->desc.bNumEndpoints; + dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints); + + for (i = 0; i < num_endpoints; i++) { + dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1, + interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize); + ep_desc = &interface->cur_altsetting->endpoint[i].desc; + } + + /* set max packet size based on descriptor */ + priv->max_packet_size = ep_desc->wMaxPacketSize; + + dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size); +} + +static int ssu100_attach(struct usb_serial *serial) +{ + struct ssu100_port_private *priv; + struct usb_serial_port *port = *serial->port; + + dbg("%s", __func__); + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__, + sizeof(*priv)); + return -ENOMEM; + } + + init_waitqueue_head(&priv->delta_msr_wait); + usb_set_serial_port_data(port, priv); + + ssu100_set_max_packet_size(port); + + return ssu100_initdevice(serial->dev); +} + +static int ssu100_tiocmget(struct tty_struct *tty, struct file *file) +{ + struct usb_serial_port *port = tty->driver_data; + struct usb_device *dev = port->serial->dev; + u8 *d; + int r; + + dbg("%s\n", __func__); + + d = kzalloc(2, GFP_KERNEL); + if (!d) + return -ENOMEM; + + r = ssu100_getregister(dev, 0, MODEM_CTL_REGISTER, d); + if (r < 0) + goto mget_out; + + r = ssu100_getregister(dev, 0, MODEM_STATUS_REGISTER, d+1); + if (r < 0) + goto mget_out; + + r = (d[0] & SERIAL_MCR_DTR ? TIOCM_DTR : 0) | + (d[0] & SERIAL_MCR_RTS ? TIOCM_RTS : 0) | + (d[1] & SERIAL_MSR_CTS ? TIOCM_CTS : 0) | + (d[1] & SERIAL_MSR_CD ? TIOCM_CAR : 0) | + (d[1] & SERIAL_MSR_RI ? TIOCM_RI : 0) | + (d[1] & SERIAL_MSR_DSR ? TIOCM_DSR : 0); + +mget_out: + kfree(d); + return r; +} + +static int ssu100_tiocmset(struct tty_struct *tty, struct file *file, + unsigned int set, unsigned int clear) +{ + struct usb_serial_port *port = tty->driver_data; + struct usb_device *dev = port->serial->dev; + + dbg("%s\n", __func__); + return update_mctrl(dev, set, clear); +} + +static void ssu100_dtr_rts(struct usb_serial_port *port, int on) +{ + struct usb_device *dev = port->serial->dev; + + dbg("%s\n", __func__); + + mutex_lock(&port->serial->disc_mutex); + if (!port->serial->disconnected) { + /* Disable flow control */ + if (!on && + ssu100_setregister(dev, 0, 0) < 0) + dev_err(&port->dev, "error from flowcontrol urb\n"); + /* drop RTS and DTR */ + if (on) + set_mctrl(dev, TIOCM_DTR | TIOCM_RTS); + else + clear_mctrl(dev, TIOCM_DTR | TIOCM_RTS); + } + mutex_unlock(&port->serial->disc_mutex); +} + +static int ssu100_process_packet(struct tty_struct *tty, + struct usb_serial_port *port, + struct ssu100_port_private *priv, + char *packet, int len) +{ + int i; + char flag; + char *ch; + + dbg("%s - port %d", __func__, port->number); + + if (len < 4) { + dbg("%s - malformed packet", __func__); + return 0; + } + + if ((packet[0] == 0x1b) && (packet[1] == 0x1b) && + ((packet[2] == 0x00) || (packet[2] == 0x01))) { + if (packet[2] == 0x00) + priv->shadowLSR = packet[3] & (SERIAL_LSR_OE | + SERIAL_LSR_PE | + SERIAL_LSR_FE | + SERIAL_LSR_BI); + + if (packet[2] == 0x01) { + priv->shadowMSR = packet[3]; + wake_up_interruptible(&priv->delta_msr_wait); + } + + len -= 4; + ch = packet + 4; + } else + ch = packet; + + if (!len) + return 0; /* status only */ + + if (port->port.console && port->sysrq) { + for (i = 0; i < len; i++, ch++) { + if (!usb_serial_handle_sysrq_char(tty, port, *ch)) + tty_insert_flip_char(tty, *ch, flag); + } + } else + tty_insert_flip_string_fixed_flag(tty, ch, flag, len); + + return len; +} + +static void ssu100_process_read_urb(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + struct ssu100_port_private *priv = usb_get_serial_port_data(port); + char *data = (char *)urb->transfer_buffer; + struct tty_struct *tty; + int count = 0; + int i; + int len; + + dbg("%s", __func__); + + tty = tty_port_tty_get(&port->port); + if (!tty) + return; + + for (i = 0; i < urb->actual_length; i += priv->max_packet_size) { + len = min_t(int, urb->actual_length - i, priv->max_packet_size); + count += ssu100_process_packet(tty, port, priv, &data[i], len); + } + + if (count) + tty_flip_buffer_push(tty); + tty_kref_put(tty); +} + + +static struct usb_serial_driver ssu100_device = { + .driver = { + .owner = THIS_MODULE, + .name = "ssu100", + }, + .description = DRIVER_DESC, + .id_table = id_table, + .usb_driver = &ssu100_driver, + .num_ports = 1, + .bulk_in_size = 256, + .bulk_out_size = 256, + .open = ssu100_open, + .close = ssu100_close, + .attach = ssu100_attach, + .release = ssu100_release, + .dtr_rts = ssu100_dtr_rts, + .process_read_urb = ssu100_process_read_urb, + .tiocmget = ssu100_tiocmget, + .tiocmset = ssu100_tiocmset, + .ioctl = ssu100_ioctl, + .set_termios = ssu100_set_termios, +}; + +static int __init ssu100_init(void) +{ + int retval; + + dbg("%s", __func__); + + /* register with usb-serial */ + retval = usb_serial_register(&ssu100_device); + + if (retval) + goto failed_usb_sio_register; + + retval = usb_register(&ssu100_driver); + if (retval) + goto failed_usb_register; + + printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" + DRIVER_DESC "\n"); + + return 0; + +failed_usb_register: + usb_serial_deregister(&ssu100_device); +failed_usb_sio_register: + return retval; +} + +static void __exit ssu100_exit(void) +{ + usb_deregister(&ssu100_driver); + usb_serial_deregister(&ssu100_device); +} + +module_init(ssu100_init); +module_exit(ssu100_exit); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not"); diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 941c2d409f8..2a982e62963 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -653,6 +653,7 @@ exit: return id; } +/* Caller must hold table_lock */ static struct usb_serial_driver *search_serial_device( struct usb_interface *iface) { @@ -718,17 +719,23 @@ int usb_serial_probe(struct usb_interface *interface, int num_ports = 0; int max_endpoints; - lock_kernel(); /* guard against unloading a serial driver module */ + mutex_lock(&table_lock); type = search_serial_device(interface); if (!type) { - unlock_kernel(); + mutex_unlock(&table_lock); dbg("none matched"); return -ENODEV; } + if (!try_module_get(type->driver.owner)) { + mutex_unlock(&table_lock); + dev_err(&interface->dev, "module get failed, exiting\n"); + return -EIO; + } + mutex_unlock(&table_lock); + serial = create_serial(dev, interface, type); if (!serial) { - unlock_kernel(); dev_err(&interface->dev, "%s - out of memory\n", __func__); return -ENOMEM; } @@ -737,20 +744,11 @@ int usb_serial_probe(struct usb_interface *interface, if (type->probe) { const struct usb_device_id *id; - if (!try_module_get(type->driver.owner)) { - unlock_kernel(); - dev_err(&interface->dev, - "module get failed, exiting\n"); - kfree(serial); - return -EIO; - } - id = get_iface_id(type, interface); retval = type->probe(serial, id); module_put(type->driver.owner); if (retval) { - unlock_kernel(); dbg("sub driver rejected device"); kfree(serial); return retval; @@ -822,7 +820,6 @@ int usb_serial_probe(struct usb_interface *interface, * properly during a later invocation of usb_serial_probe */ if (num_bulk_in == 0 || num_bulk_out == 0) { - unlock_kernel(); dev_info(&interface->dev, "PL-2303 hack: descriptors matched but endpoints did not\n"); kfree(serial); return -ENODEV; @@ -835,7 +832,6 @@ int usb_serial_probe(struct usb_interface *interface, if (type == &usb_serial_generic_device) { num_ports = num_bulk_out; if (num_ports == 0) { - unlock_kernel(); dev_err(&interface->dev, "Generic device with no bulk out, not allowed.\n"); kfree(serial); @@ -847,7 +843,6 @@ int usb_serial_probe(struct usb_interface *interface, /* if this device type has a calc_num_ports function, call it */ if (type->calc_num_ports) { if (!try_module_get(type->driver.owner)) { - unlock_kernel(); dev_err(&interface->dev, "module get failed, exiting\n"); kfree(serial); @@ -878,7 +873,6 @@ int usb_serial_probe(struct usb_interface *interface, max_endpoints = max(max_endpoints, num_interrupt_out); max_endpoints = max(max_endpoints, (int)serial->num_ports); serial->num_port_pointers = max_endpoints; - unlock_kernel(); dbg("%s - setting up %d port structures for this device", __func__, max_endpoints); @@ -1077,6 +1071,8 @@ int usb_serial_probe(struct usb_interface *interface, dev_set_name(&port->dev, "ttyUSB%d", port->number); dbg ("%s - registering %s", __func__, dev_name(&port->dev)); port->dev_state = PORT_REGISTERING; + device_enable_async_suspend(&port->dev); + retval = device_add(&port->dev); if (retval) { dev_err(&port->dev, "Error registering port device, " @@ -1349,6 +1345,7 @@ int usb_serial_register(struct usb_serial_driver *driver) driver->description = driver->driver.name; /* Add this device to our list of devices */ + mutex_lock(&table_lock); list_add(&driver->driver_list, &usb_serial_driver_list); retval = usb_serial_bus_register(driver); @@ -1360,6 +1357,7 @@ int usb_serial_register(struct usb_serial_driver *driver) printk(KERN_INFO "USB Serial support registered for %s\n", driver->description); + mutex_unlock(&table_lock); return retval; } EXPORT_SYMBOL_GPL(usb_serial_register); @@ -1370,8 +1368,10 @@ void usb_serial_deregister(struct usb_serial_driver *device) /* must be called with BKL held */ printk(KERN_INFO "USB Serial deregistering driver %s\n", device->description); + mutex_lock(&table_lock); list_del(&device->driver_list); usb_serial_bus_deregister(device); + mutex_unlock(&table_lock); } EXPORT_SYMBOL_GPL(usb_serial_deregister); |