tty: move obsolete and broken tty drivers to drivers/staging/tty/

As planned by Arnd Bergmann, this moves the following drivers to the
drivers/staging/tty/ directory where they will be removed after 2.6.41
if no one steps up to claim them.
	epca
	epca
	ip2
	istallion
	riscom8
	serial167
	specialix
	stallion

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 2368 deletions

diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
deleted file mode 100644
index 47e5753f732..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 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,
-		       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,
-				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);