[PATCH 4/8] pcxx: Remove drivers/char/pcxx.c

[James Nelson <james4765@cwazy.co.uk>]

This patch removes drivers/char/pcxx.c

It depends on the previous patches.

Signed-off-by: James Nelson <james4765@gmail.com>

diff -urN --exclude='*~' linux-2.6.11-rc2-mm1-original/drivers/char/pcxx.c linux-2.6.11-rc2-mm1/drivers/char/pcxx.c
--- linux-2.6.11-rc2-mm1-original/drivers/char/pcxx.c	2005-01-24 17:15:56.000000000 -0500
+++ linux-2.6.11-rc2-mm1/drivers/char/pcxx.c	1969-12-31 19:00:00.000000000 -0500
@@ -1,2353 +0,0 @@
-/*
- *  linux/drivers/char/pcxx.c
- * 
- *  Written by Troy De Jongh, November, 1994
- *
- *  Copyright (C) 1994,1995 Troy De Jongh
- *  This software may be used and distributed according to the terms 
- *  of the GNU General Public License.
- *
- *  This driver is for the DigiBoard PC/Xe and PC/Xi line of products.
- *
- *  This driver does NOT support DigiBoard's fastcook FEP option and
- *  does not support the transparent print (i.e. digiprint) option.
- *
- * This Driver is currently maintained by Christoph Lameter (christoph@lameter.com)
- *
- * Please contact digi for support issues at digilnux@dgii.com.
- * Some more information can be found at
- * http://lameter.com/digi.
- *
- *  1.5.2 Fall 1995 Bug fixes by David Nugent
- *  1.5.3 March 9, 1996 Christoph Lameter: Fixed 115.2K Support. Memory
- *		allocation harmonized with 1.3.X Series.
- *  1.5.4 March 30, 1996 Christoph Lameter: Fixup for 1.3.81. Use init_bh
- *		instead of direct assignment to kernel arrays.
- *  1.5.5 April 5, 1996 Major device numbers corrected.
- *              Mike McLagan<mike.mclagan@linux.org>: Add setup
- *              variable handling, instead of using the old pcxxconfig.h
- *  1.5.6 April 16, 1996 Christoph Lameter: Pointer cleanup, macro cleanup.
- *		Call out devices changed to /dev/cudxx.
- *  1.5.7 July 22, 1996 Martin Mares: CLOCAL fix, pcxe_table clearing.
- *		David Nugent: Bug in pcxe_open.
- *		Brian J. Murrell: Modem Control fixes, Majors correctly assigned
- *  1.6.1 April 6, 1997 Bernhard Kaindl: fixed virtual memory access for 2.1
- *              i386-kernels and use on other archtitectures, Allowing use
- *              as module, added module parameters, added switch to enable
- *              verbose messages to assist user during card configuration.
- *              Currently only tested on a PC/Xi card, but should work on Xe
- *              and Xeve also.
- *  1.6.2 August, 7, 2000: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *  		get rid of panics, release previously allocated resources
- *  1.6.3 August, 23, 2000: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
- *  		cleaned up wrt verify_area.
- *              Christoph Lameter: Update documentation, email addresses
- *              and URLs. Remove some obsolete code.
- *
- */
-
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/tty.h>
-#include <linux/tty_flip.h>
-#include <linux/major.h>
-#include <linux/string.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/delay.h>
-#include <linux/serial.h>
-#include <linux/tty_driver.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-
-#ifndef MODULE
-#include <linux/ctype.h> /* We only need it for parsing the "digi="-line */
-#endif
-
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/semaphore.h>
-
-#define VERSION 	"1.6.3"
-
-#include "digi.h"
-#include "fep.h"
-#include "pcxx.h"
-#include "digi_fep.h"
-#include "digi_bios.h"
-
-/*
- * Define one default setting if no digi= config line is used.
- * Default is altpin = disabled, 16 ports, I/O 200h, Memory 0D0000h
- */
-static struct board_info boards[MAX_DIGI_BOARDS] = { {
-/* Board is enabled       */	ENABLED,
-/* Type is auto-detected  */	0,
-/* altping is disabled    */    DISABLED,
-/* number of ports = 16   */	16,
-/* io address is 0x200    */	0x200,
-/* card memory at 0xd0000 */	0xd0000,
-/* first minor device no. */	0
-} };
- 
-static int verbose = 0;
-static int debug   = 0;
-
-#ifdef MODULE
-/* Variables for insmod */
-static int io[]           = {0, 0, 0, 0};
-static int membase[]      = {0, 0, 0, 0};
-static int memsize[]      = {0, 0, 0, 0};
-static int altpin[]       = {0, 0, 0, 0};
-static int numports[]     = {0, 0, 0, 0};
-
-MODULE_AUTHOR("Bernhard Kaindl");
-MODULE_DESCRIPTION("Digiboard PC/X{i,e,eve} driver");
-MODULE_LICENSE("GPL");
-module_param(verbose,     bool, 0644);
-module_param(debug,       bool, 0644);
-module_param_array(io,          int, NULL, 0);
-module_param_array(membase,     int, NULL, 0);
-module_param_array(memsize,     int, NULL, 0);
-module_param_array(altpin,      int, NULL, 0);
-module_param_array(numports,    int, NULL, 0);
-
-#endif /* MODULE */
-
-static int numcards = 1;
-static int nbdevs = 0;
- 
-static struct channel    *digi_channels;
- 
-int pcxx_ncook=sizeof(pcxx_cook);
-int pcxx_nbios=sizeof(pcxx_bios);
-
-#define pcxxassert(x, msg)  if(!(x)) pcxx_error(__LINE__, msg)
-
-#define FEPTIMEOUT 200000  
-#define SERIAL_TYPE_NORMAL	1
-#define PCXE_EVENT_HANGUP   1
-
-static struct tty_driver *pcxe_driver;
-
-static struct timer_list pcxx_timer;
-
-static void pcxxpoll(unsigned long dummy);
-static void fepcmd(struct channel *, int, int, int, int, int);
-static void pcxe_put_char(struct tty_struct *, unsigned char);
-static void pcxe_flush_chars(struct tty_struct *);
-static void pcxx_error(int, char *);
-static void pcxe_close(struct tty_struct *, struct file *);
-static int pcxe_ioctl(struct tty_struct *, struct file *, unsigned int, unsigned long);
-static void pcxe_set_termios(struct tty_struct *, struct termios *);
-static int pcxe_write(struct tty_struct *, const unsigned char *, int);
-static int pcxe_write_room(struct tty_struct *);
-static int pcxe_chars_in_buffer(struct tty_struct *);
-static void pcxe_flush_buffer(struct tty_struct *);
-static void doevent(int);
-static void receive_data(struct channel *);
-static void pcxxparam(struct tty_struct *, struct channel *ch);
-static void do_softint(void *);
-static inline void pcxe_sched_event(struct channel *, int);
-static void pcxe_start(struct tty_struct *);
-static void pcxe_stop(struct tty_struct *);
-static void pcxe_throttle(struct tty_struct *);
-static void pcxe_unthrottle(struct tty_struct *);
-static void digi_send_break(struct channel *ch, int msec);
-static void shutdown(struct channel *);
-static void setup_empty_event(struct tty_struct *tty, struct channel *ch);
-static inline void memwinon(struct board_info *b, unsigned int win);
-static inline void memwinoff(struct board_info *b, unsigned int win);
-static inline void globalwinon(struct channel *ch);
-static inline void rxwinon(struct channel *ch);
-static inline void txwinon(struct channel *ch);
-static inline void memoff(struct channel *ch);
-static inline void assertgwinon(struct channel *ch);
-static inline void assertmemoff(struct channel *ch);
-static int pcxe_tiocmget(struct tty_struct *tty, struct file *file);
-static int pcxe_tiocmset(struct tty_struct *tty, struct file *file,
-			 unsigned int set, unsigned int clear);
-
-#define TZ_BUFSZ 4096
-
-/* function definitions */
-
-/*****************************************************************************/
-
-static void cleanup_board_resources(void)
-{
-	int crd, i;
-	struct board_info *bd;
-	struct channel *ch;
-
-        for(crd = 0; crd < numcards; crd++) {
-                bd = &boards[crd];
-		ch = digi_channels + bd->first_minor;
-
-		if (bd->region)
-			release_region(bd->port, 4);
-
-		for(i = 0; i < bd->numports; i++, ch++)
-			if (ch->tmp_buf)
-				kfree(ch->tmp_buf);
-	}
-}
-
-static void __exit pcxe_cleanup(void)
-{
-
-	unsigned long	flags;
-	int e1;
-
-	printk(KERN_NOTICE "Unloading PC/Xx version %s\n", VERSION);
-
-	save_flags(flags);
-	cli();
-	del_timer_sync(&pcxx_timer);
-
-	if ((e1 = tty_unregister_driver(pcxe_driver)))
-		printk("SERIAL: failed to unregister serial driver (%d)\n", e1);
-
-	put_tty_driver(pcxe_driver);
-	cleanup_board_resources();
-	kfree(digi_channels);
-	restore_flags(flags);
-}
-
-static inline struct channel *chan(register struct tty_struct *tty)
-{
-	if (tty) {
-		register struct channel *ch=(struct channel *)tty->driver_data;
-		if (ch >= digi_channels && ch < digi_channels+nbdevs) {
-			if (ch->magic==PCXX_MAGIC)
-				return ch;
-		}
-	}
-	return NULL;
-}
-
-/* These inline routines are to turn board memory on and off */
-static inline void memwinon(struct board_info *b, unsigned int win)
-{
-	if(b->type == PCXEVE)
-		outb_p(FEPWIN|win, b->port+1);
-	else
-		outb_p(inb(b->port)|FEPMEM, b->port);
-}
-
-static inline void memwinoff(struct board_info *b, unsigned int win)
-{
-	outb_p(inb(b->port)&~FEPMEM, b->port);
-	if(b->type == PCXEVE)
-		outb_p(0, b->port + 1);
-}
-
-static inline void globalwinon(struct channel *ch)
-{
-	if(ch->board->type == PCXEVE)
-		outb_p(FEPWIN, ch->board->port+1);
-	else
-		outb_p(FEPMEM, ch->board->port);
-}
-
-static inline void rxwinon(struct channel *ch)
-{
-	if(ch->rxwin == 0)
-		outb_p(FEPMEM, ch->board->port);
-	else 
-		outb_p(ch->rxwin, ch->board->port+1);
-}
-
-static inline void txwinon(struct channel *ch)
-{
-	if(ch->txwin == 0)
-		outb_p(FEPMEM, ch->board->port);
-	else
-		outb_p(ch->txwin, ch->board->port+1);
-}
-
-static inline void memoff(struct channel *ch)
-{
-	outb_p(0, ch->board->port);
-	if(ch->board->type == PCXEVE)
-		outb_p(0, ch->board->port+1);
-}
-
-static inline void assertgwinon(struct channel *ch)
-{
-	if(ch->board->type != PCXEVE)
-		pcxxassert(inb(ch->board->port) & FEPMEM, "Global memory off");
-}
-
-static inline void assertmemoff(struct channel *ch)
-{
-	if(ch->board->type != PCXEVE)
-		pcxxassert(!(inb(ch->board->port) & FEPMEM), "Memory on");
-}
-
-static inline void pcxe_sched_event(struct channel *info, int event)
-{
-	info->event |= 1 << event;
-	schedule_work(&info->tqueue);
-}
-
-static void pcxx_error(int line, char *msg)
-{
-	printk("pcxx_error (DigiBoard): line=%d %s\n", line, msg);
-}
-
-static int pcxx_waitcarrier(struct tty_struct *tty,struct file *filp,struct channel *info)
-{
-	DECLARE_WAITQUEUE(wait, current);
-	int	retval = 0;
-	int	do_clocal = 0;
-
-	if (tty->termios->c_cflag & CLOCAL)
-		do_clocal = 1;
-
-	/*
-	 * Block waiting for the carrier detect and the line to become free
-	 */
-
-	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
-	info->count--;
-	info->blocked_open++;
-
-	for (;;) {
-		cli();
-		globalwinon(info);
-		info->omodem |= DTR|RTS;
-		fepcmd(info, SETMODEM, DTR|RTS, 0, 10, 1);
-		memoff(info);
-		sti();
-		set_current_state(TASK_INTERRUPTIBLE);
-		if(tty_hung_up_p(filp) || (info->asyncflags & ASYNC_INITIALIZED) == 0) {
-			if(info->asyncflags & ASYNC_HUP_NOTIFY)
-				retval = -EAGAIN;
-			else
-				retval = -ERESTARTSYS;	
-			break;
-		}
-		if ((info->asyncflags & ASYNC_CLOSING) == 0 &&
-			(do_clocal || (info->imodem & info->dcd)))
-			break;
-		if(signal_pending(current)) {
-			retval = -ERESTARTSYS;
-			break;
-		}
-		schedule();
-	}
-	current->state = TASK_RUNNING;
-	remove_wait_queue(&info->open_wait, &wait);
-
-	if(!tty_hung_up_p(filp))
-		info->count++;
-	info->blocked_open--;
-
-	return retval;
-}	
-
-
-int pcxe_open(struct tty_struct *tty, struct file * filp)
-{
-	volatile struct board_chan *bc;
-	struct channel *ch;
-	unsigned long flags;
-	int line;
-	int boardnum;
-	int retval;
-
-	line = tty->index;
-
-	if(line < 0 || line >= nbdevs) {
-		printk("line out of range in pcxe_open\n");
-		tty->driver_data = NULL;
-		return(-ENODEV);
-	}
-
-	for(boardnum=0;boardnum<numcards;boardnum++)
-		if ((line >= boards[boardnum].first_minor) && 
-			(line < boards[boardnum].first_minor + boards[boardnum].numports))
-		break;
-
-	if(boardnum >= numcards || boards[boardnum].status == DISABLED ||
-		(line - boards[boardnum].first_minor) >= boards[boardnum].numports) {
-		tty->driver_data = NULL;   /* Mark this device as 'down' */
-		return(-ENODEV);
-	}
-
-	ch = digi_channels+line;
-
-	if(ch->brdchan == 0) {
-		tty->driver_data = NULL;
-		return(-ENODEV);
-	}
-
-	/*
-	 * If the device is in the middle of being closed, then block
-	 * until it's done, and then try again.
-	 */
-	if(ch->asyncflags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&ch->close_wait);
-		if(ch->asyncflags & ASYNC_HUP_NOTIFY)
-			return -EAGAIN;
-		else
-			return -ERESTARTSYS;
-	}
-
-	save_flags(flags);
-	cli();
-	ch->count++;
-	tty->driver_data = ch;
-	ch->tty = tty;
-
-	if ((ch->asyncflags & ASYNC_INITIALIZED) == 0) {
-		unsigned int head;
-
-		globalwinon(ch);
-		ch->statusflags = 0;
-		bc=ch->brdchan;
-		ch->imodem = bc->mstat;
-		head = bc->rin;
-		bc->rout = head;
-		ch->tty = tty;
-		pcxxparam(tty,ch);
-		ch->imodem = bc->mstat;
-		bc->idata = 1;
-		ch->omodem = DTR|RTS;
-		fepcmd(ch, SETMODEM, DTR|RTS, 0, 10, 1);
-		memoff(ch);
-		ch->asyncflags |= ASYNC_INITIALIZED;
-	}
-	restore_flags(flags);
-
-	if(ch->asyncflags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&ch->close_wait);
-		if(ch->asyncflags & ASYNC_HUP_NOTIFY)
-			return -EAGAIN;
-		else
-			return -ERESTARTSYS;
-	}
-
-	if (!(filp->f_flags & O_NONBLOCK)) {
-		/* this has to be set in order for the "block until
-		 * CD" code to work correctly.  i'm not sure under
-		 * what circumstances asyncflags should be set to
-		 * ASYNC_NORMAL_ACTIVE though
-		 * brian@ilinx.com
-		 */
-		ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
-		if ((retval = pcxx_waitcarrier(tty, filp, ch)) != 0)
-			return retval;
-	}
-	ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
- 	
-	return 0;
-} 
-
-static void shutdown(struct channel *info)
-{
-	unsigned long flags;
-	volatile struct board_chan *bc;
-	struct tty_struct *tty;
-
-	if (!(info->asyncflags & ASYNC_INITIALIZED)) 
-		return;
-
-	save_flags(flags);
-	cli();
-	globalwinon(info);
-
-	bc = info->brdchan;
-	if(bc)
-		bc->idata = 0;
-
-	tty = info->tty;
-
-	/*
-	 * If we're a modem control device and HUPCL is on, drop RTS & DTR.
-	 */
-	if(tty->termios->c_cflag & HUPCL) {
-		info->omodem &= ~(RTS|DTR);
-		fepcmd(info, SETMODEM, 0, DTR|RTS, 10, 1);
-	}
-
-	memoff(info);
-	info->asyncflags &= ~ASYNC_INITIALIZED;
-	restore_flags(flags);
-}
-
-
-static void pcxe_close(struct tty_struct * tty, struct file * filp)
-{
-	struct channel *info;
-
-	if ((info=chan(tty))!=NULL) {
-		unsigned long flags;
-		save_flags(flags);
-		cli();
-
-		if(tty_hung_up_p(filp)) {
-			/* flag that somebody is done with this module */
-			restore_flags(flags);
-			return;
-		}
-		/* this check is in serial.c, it won't hurt to do it here too */
-		if ((tty->count == 1) && (info->count != 1)) {
-			/*
-			 * Uh, oh.  tty->count is 1, which means that the tty
-			 * structure will be freed.  Info->count should always
-			 * be one in these conditions.  If it's greater than
-			 * one, we've got real problems, since it means the
-			 * serial port won't be shutdown.
-			 */
-			printk("pcxe_close: bad serial port count; tty->count is 1, info->count is %d\n", info->count);
-			info->count = 1;
-		}
-		if (info->count-- > 1) {
-			restore_flags(flags);
-			return;
-		}
-		if (info->count < 0) {
-			info->count = 0;
-		}
-
-		info->asyncflags |= ASYNC_CLOSING;
-	
-		tty->closing = 1;
-		if(info->asyncflags & ASYNC_INITIALIZED) {
-			setup_empty_event(tty,info);		
-			tty_wait_until_sent(tty, 3000); /* 30 seconds timeout */
-		}
-	
-		if(tty->driver->flush_buffer)
-			tty->driver->flush_buffer(tty);
-		tty_ldisc_flush(tty);
-		shutdown(info);
-		tty->closing = 0;
-		info->event = 0;
-		info->tty = NULL;
-		if(info->blocked_open) {
-			if(info->close_delay) {
-				msleep_interruptible(jiffies_to_msecs(info->close_delay));
-			}
-			wake_up_interruptible(&info->open_wait);
-		}
-		info->asyncflags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-		wake_up_interruptible(&info->close_wait);
-		restore_flags(flags);
-	}
-}
-
-
-void pcxe_hangup(struct tty_struct *tty)
-{
-	struct channel *ch;
-
-	if ((ch=chan(tty))!=NULL) {
-		unsigned long flags;
-
-		save_flags(flags);
-		cli();
-		shutdown(ch);
-		ch->event = 0;
-		ch->count = 0;
-		ch->tty = NULL;
-		ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
-		wake_up_interruptible(&ch->open_wait);
-		restore_flags(flags);
-	}
-}
-
-
-
-static int pcxe_write(struct tty_struct * tty, const unsigned char *buf, int count)
-{
-	struct channel *ch;
-	volatile struct board_chan *bc;
-	int total, remain, size, stlen;
-	unsigned int head, tail;
-	unsigned long flags;
-	/* printk("Entering pcxe_write()\n"); */
-
-	if ((ch=chan(tty))==NULL)
-		return 0;
-
-	bc = ch->brdchan;
-	size = ch->txbufsize;
-
-	/*
-	 * All data is now local
-	 */
-
-	total = 0;
-	save_flags(flags);
-	cli();
-	globalwinon(ch);
-	head = bc->tin & (size - 1);
-	tail = bc->tout;
-	if (tail != bc->tout)
-		tail = bc->tout;
-	tail &= (size - 1);
-	if (head >= tail) {
-		remain = size - (head - tail) - 1;
-		stlen = size - head;
-	}
-	else {
-		remain = tail - head - 1;
-		stlen = remain;
-	}
-	count = min(remain, count);
-
-	txwinon(ch);
-	while (count > 0) {
-		stlen = min(count, stlen);
-		memcpy(ch->txptr + head, buf, stlen);
-		buf += stlen;
-		count -= stlen;
-		total += stlen;
-		head += stlen;
-		if (head >= size) {
-			head = 0;
-			stlen = tail;
-		}
-	}
-	ch->statusflags |= TXBUSY;
-	globalwinon(ch);
-	bc->tin = head;
-	if ((ch->statusflags & LOWWAIT) == 0) {
-		ch->statusflags |= LOWWAIT;
-		bc->ilow = 1;
-	}
-	memoff(ch);
-	restore_flags(flags);
-	
-	return(total);
-}
-
-
-static void pcxe_put_char(struct tty_struct *tty, unsigned char c)
-{
-	pcxe_write(tty, &c, 1);
-	return;
-}
-
-
-static int pcxe_write_room(struct tty_struct *tty)
-{
-	struct channel *ch;
-	int remain;
-
-	remain = 0;
-	if ((ch=chan(tty))!=NULL) {
-		volatile struct board_chan *bc;
-		unsigned int head, tail;
-		unsigned long flags;
-
-		save_flags(flags);
-		cli();
-		globalwinon(ch);
-
-		bc = ch->brdchan;
-		head = bc->tin & (ch->txbufsize - 1);
-		tail = bc->tout;
-		if (tail != bc->tout)
-			tail = bc->tout;
-		tail &= (ch->txbufsize - 1);
-
-		if((remain = tail - head - 1) < 0 )
-			remain += ch->txbufsize;
-
-		if (remain && (ch->statusflags & LOWWAIT) == 0) {
-			ch->statusflags |= LOWWAIT;
-			bc->ilow = 1;
-		}
-		memoff(ch);
-		restore_flags(flags);
-	}
-
-	return remain;
-}
-
-
-static int pcxe_chars_in_buffer(struct tty_struct *tty)
-{
-	int chars;
-	unsigned int ctail, head, tail;
-	int remain;
-	unsigned long flags;
-	struct channel *ch;
-	volatile struct board_chan *bc;
-
-	if ((ch=chan(tty))==NULL)
-		return(0);
-
-	save_flags(flags);
-	cli();
-	globalwinon(ch);
-
-	bc = ch->brdchan;
-	tail = bc->tout;
-	head = bc->tin;
-	ctail = ch->mailbox->cout;
-	if(tail == head && ch->mailbox->cin == ctail && bc->tbusy == 0)
-		chars = 0;
-	else {
-		head = bc->tin & (ch->txbufsize - 1);
-		tail &= (ch->txbufsize - 1);
-		if((remain = tail - head - 1) < 0 )
-			remain += ch->txbufsize;
-
-		chars = (int)(ch->txbufsize - remain);
-
-		/* 
-		 * Make it possible to wakeup anything waiting for output
-		 * in tty_ioctl.c, etc.
-		 */
-		if(!(ch->statusflags & EMPTYWAIT))
-			setup_empty_event(tty,ch);
-	}
-
-	memoff(ch);
-	restore_flags(flags);
-
-	return(chars);
-}
-
-
-static void pcxe_flush_buffer(struct tty_struct *tty)
-{
-	unsigned int tail;
-	volatile struct board_chan *bc;
-	struct channel *ch;
-	unsigned long flags;
-
-	if ((ch=chan(tty))==NULL)
-		return;
-
-	save_flags(flags);
-	cli();
-
-	globalwinon(ch);
-	bc = ch->brdchan;
-	tail = bc->tout;
-	fepcmd(ch, STOUT, (unsigned) tail, 0, 0, 0);
-
-	memoff(ch);
-	restore_flags(flags);
-
-	tty_wakeup(tty);
-}
-
-static void pcxe_flush_chars(struct tty_struct *tty)
-{
-	struct channel * ch;
-
-	if ((ch=chan(tty))!=NULL) {
-		unsigned long flags;
-
-		save_flags(flags);
-		cli();
-		if ((ch->statusflags & TXBUSY) && !(ch->statusflags & EMPTYWAIT))
-			setup_empty_event(tty,ch);
-		restore_flags(flags);
-	}
-}
-
-#ifndef MODULE
-
-/*
- * Driver setup function when linked into the kernel to optionally parse multible
- * "digi="-lines and initialize the driver at boot time. No probing.
- */
-void __init pcxx_setup(char *str, int *ints)
-{
-
-	struct board_info board;
-	int               i, j, last;
-	char              *temp, *t2;
-	unsigned          len;
-
-	numcards=0;
-
-	memset(&board, 0, sizeof(board));
-
-	for(last=0,i=1;i<=ints[0];i++)
-		switch(i)
-		{
-			case 1:
-				board.status = ints[i];
-				last = i;
-				break;
-
-			case 2:
-				board.type = ints[i];
-				last = i;
-				break;
-
-			case 3:
-				board.altpin = ints[i];
-				last = i;
-				break;
-
-			case 4:
-				board.numports = ints[i];
-				last = i;
-				break;
-
-			case 5:
-				board.port = ints[i];
-				last = i;
-				break;
-
-			case 6:
-				board.membase = ints[i];
-				last = i;
-				break;
-
-			default:
-				printk("PC/Xx: Too many integer parms\n");
-				return;
-		}
-
-	while (str && *str) 
-	{
-		/* find the next comma or terminator */
-		temp = str;
-		while (*temp && (*temp != ','))
-			temp++;
-
-		if (!*temp)
-			temp = NULL;
-		else
-			*temp++ = 0;
-
-		i = last + 1;
-
-		switch(i)
-		{
-			case 1:
-				len = strlen(str);
-				if (strncmp("Disable", str, len) == 0) 
-					board.status = 0;
-				else
-					if (strncmp("Enable", str, len) == 0)
-						board.status = 1;
-					else
-					{
-						printk("PC/Xx: Invalid status %s\n", str);
-						return;
-					}
-				last = i;
-				break;
-
-			case 2:
-				for(j=0;j<PCXX_NUM_TYPES;j++)
-					if (strcmp(board_desc[j], str) == 0)
-						break;
-
-				if (i<PCXX_NUM_TYPES) 
-					board.type = j;
-				else
-				{
-					printk("PC/Xx: Invalid board name: %s\n", str);
-					return;
-				}
-				last = i;
-				break;
-
-			case 3:
-				len = strlen(str);
-				if (strncmp("Disable", str, len) == 0) 
-					board.altpin = 0;
-				else
-					if (strncmp("Enable", str, len) == 0)
-						board.altpin = 1;
-					else
-					{
-						printk("PC/Xx: Invalid altpin %s\n", str);
-						return;
-					}
-				last = i;
-				break;
-
-			case 4:
-				t2 = str;
-				while (isdigit(*t2))
-					t2++;
-
-				if (*t2)
-				{
-					printk("PC/Xx: Invalid port count %s\n", str);
-					return;
-				}
-
-				board.numports = simple_strtoul(str, NULL, 0);
-				last = i;
-				break;
-
-			case 5:
-				t2 = str;
-				while (isxdigit(*t2))
-					t2++;
-
-				if (*t2)
-				{
-					printk("PC/Xx: Invalid io port address %s\n", str);
-					return;
-				}
-
-				board.port = simple_strtoul(str, NULL, 16);
-				last = i;
-				break;
-
-			case 6:
-				t2 = str;
-				while (isxdigit(*t2))
-					t2++;
-
-				if (*t2)
-				{
-					printk("PC/Xx: Invalid memory base %s\n", str);
-					return;
-				}
-
-				board.membase = simple_strtoul(str, NULL, 16);
-				last = i;
-				break;
-
-			default:
-				printk("PC/Xx: Too many string parms\n");
-				return;
-		}
-		str = temp;
-	}
-
-	if (last < 6)  
-	{
-		printk("PC/Xx: Insufficient parms specified\n");
-		return;
-	}
- 
-        /* I should REALLY validate the stuff here */
-
-	memcpy(&boards[numcards],&board, sizeof(board));
-	printk("PC/Xx: Added board %i, %s %s %i ports at 0x%4.4X base 0x%6.6X\n", 
-		numcards, board_desc[board.type], board_mem[board.type], 
-		board.numports, board.port, (unsigned int) board.membase);
-
-	/* keep track of my initial minor number */
-        if (numcards)
-		boards[numcards].first_minor = boards[numcards-1].first_minor + boards[numcards-1].numports;
-	else
-		boards[numcards].first_minor = 0;
-
-	/* yeha!  string parameter was successful! */
-	numcards++;
-}
-#endif
-
-static struct tty_operations pcxe_ops = {
-	.open = pcxe_open,
-	.close = pcxe_close,
-	.write = pcxe_write,
-	.put_char = pcxe_put_char,
-	.flush_chars = pcxe_flush_chars,
-	.write_room = pcxe_write_room,
-	.chars_in_buffer = pcxe_chars_in_buffer,
-	.flush_buffer = pcxe_flush_buffer,
-	.ioctl = pcxe_ioctl,
-	.throttle = pcxe_throttle,
-	.unthrottle = pcxe_unthrottle,
-	.set_termios = pcxe_set_termios,
-	.stop = pcxe_stop,
-	.start = pcxe_start,
-	.hangup = pcxe_hangup,
-	.tiocmget = pcxe_tiocmget,
-	.tiocmset = pcxe_tiocmset,
-};
-
-/*
- * function to initialize the driver with the given parameters, which are either
- * the default values from this file or the parameters given at boot.
- */
-static int __init pcxe_init(void)
-{
-	ulong memory_seg=0, memory_size=0;
-	int lowwater, enabled_cards=0, i, crd, shrinkmem=0, topwin = 0xff00L, botwin=0x100L;
-	int ret = -ENOMEM;
-	unchar *fepos, *memaddr, *bios, v;
-	volatile struct global_data *gd;
-	volatile struct board_chan *bc;
-	struct board_info *bd;
-	struct channel *ch;
-
-	printk(KERN_NOTICE "Digiboard PC/X{i,e,eve} driver v%s\n", VERSION);
-
-#ifdef MODULE
-	for (i = 0; i < MAX_DIGI_BOARDS; i++) {
-		if (io[i]) {
-			numcards = 0;
-			break;
-		}
-	}
-	if (numcards == 0) {
-		int first_minor = 0;
-
-		for (i = 0; i < MAX_DIGI_BOARDS; i++) {
-			if (io[i] == 0) {
-				boards[i].port    = 0;
-				boards[i].status  = DISABLED;
-			}
-			else {
-				boards[i].port         = (ushort)io[i];
-				boards[i].status       = ENABLED;
-				boards[i].first_minor  = first_minor;
-				numcards=i+1;
-			}
-			if (membase[i])
-				boards[i].membase = (ulong)membase[i];
-			else
-				boards[i].membase = 0xD0000;
-
-			if (memsize[i])
-				boards[i].memsize = (ulong)(memsize[i] * 1024);
-			else
-				boards[i].memsize = 0;
-
-			if (altpin[i])
-				boards[i].altpin  = ON;
-			else
-				boards[i].altpin  = OFF;
-
-			if (numports[i])
-				boards[i].numports  = (ushort)numports[i];
-			else
-				boards[i].numports  = 16;
-
-			boards[i].region = NULL;
-			first_minor += boards[i].numports;
-		}
-	}
-#endif
-
-	if (numcards <= 0)
-	{
-		printk("PC/Xx: No cards configured, driver not active.\n");
-		return -EIO;
-	}
-#if 1
-	if (debug)
-	    for (i = 0; i < numcards; i++) {
-		    printk("Card %d:status=%d, port=0x%x, membase=0x%lx, memsize=0x%lx, altpin=%d, numports=%d, first_minor=%d\n",
-			    i+1,
-			    boards[i].status,
-			    boards[i].port,
-			    boards[i].membase,
-			    boards[i].memsize,
-			    boards[i].altpin,
-			    boards[i].numports,
-			    boards[i].first_minor);
-	    }
-#endif
-
-	for (i=0;i<numcards;i++)
-		nbdevs += boards[i].numports;
-
-	if (nbdevs <= 0)
-	{
-		printk("PC/Xx: No devices activated, driver not active.\n");
-		return -EIO;
-	}
-
-	pcxe_driver = alloc_tty_driver(nbdevs);
-	if (!pcxe_driver)
-		return -ENOMEM;
-
-	/*
-	 * this turns out to be more memory efficient, as there are no 
-	 * unused spaces.
-	 */
-	digi_channels = kmalloc(sizeof(struct channel) * nbdevs, GFP_KERNEL);
-	if (!digi_channels) {
-		printk(KERN_ERR "Unable to allocate digi_channel struct\n");
-		put_tty_driver(pcxe_driver);
-		return -ENOMEM;
-	}
-	memset(digi_channels, 0, sizeof(struct channel) * nbdevs);
-
-	init_timer(&pcxx_timer);
-	pcxx_timer.function = pcxxpoll;
-
-	pcxe_driver->owner = THIS_MODULE;
-	pcxe_driver->name = "ttyD";
-	pcxe_driver->devfs_name = "pcxe/";
-	pcxe_driver->major = DIGI_MAJOR; 
-	pcxe_driver->minor_start = 0;
-	pcxe_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	pcxe_driver->subtype = SERIAL_TYPE_NORMAL;
-	pcxe_driver->init_termios = tty_std_termios;
-	pcxe_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL;
-	pcxe_driver->flags = TTY_DRIVER_REAL_RAW;
-	tty_set_operations(pcxe_driver, &pcxe_ops);
-
-	for(crd=0; crd < numcards; crd++) {
-		bd = &boards[crd];
-		outb(FEPRST, bd->port);
-		mdelay(1);
-
-		for(i=0; (inb(bd->port) & FEPMASK) != FEPRST; i++) {
-			if(i > 100) {
-				printk("PC/Xx: Board not found at port 0x%x! Check switch settings.\n",
-					bd->port);
-				bd->status = DISABLED;
-				break;
-			}
-#ifdef MODULE
-			schedule();
-#endif
-			mdelay(10);
-		}
-		if(bd->status == DISABLED)
-			continue;
-
-		v = inb(bd->port);
-
-		if((v & 0x1) == 0x1) {
-			if((v & 0x30) == 0) {        /* PC/Xi 64K card */
-				memory_seg = 0xf000;
-				memory_size = 0x10000;
-			} 
-
-			if((v & 0x30) == 0x10) {     /* PC/Xi 128K card */
-				memory_seg = 0xe000;
-				memory_size = 0x20000;
-			}
-			
-			if((v & 0x30) == 0x20) {     /* PC/Xi 256K card */
-				memory_seg = 0xc000;
-				memory_size = 0x40000;
-			}
-
-			if((v & 0x30) == 0x30) {     /* PC/Xi 512K card */
-				memory_seg = 0x8000;
-				memory_size = 0x80000;
-			}
-			bd->type = PCXI;
-		} else {
-			if((v & 0x1) == 0x1) {
-				bd->status = DISABLED;   /* PC/Xm unsupported card */
-				printk("PC/Xx: PC/Xm at 0x%x not supported!!\n", bd->port);
-				continue;
-			} else {
-				if(v & 0xC0) {    
-					topwin = 0x1f00L;
-					outb((((ulong)bd->membase>>8) & 0xe0) | 0x10, bd->port+2);
-					outb(((ulong)bd->membase>>16) & 0xff, bd->port+3);
-					bd->type = PCXEVE; /* PC/Xe 8K card */
-				} else { 
-					bd->type = PCXE;    /* PC/Xe 64K card */
-				}
-					
-				memory_seg = 0xf000;
-				memory_size = 0x10000;
-			}
-		}
-		if (verbose)
-			printk("Configuring card %d as a %s %ldK card. io=0x%x, mem=%lx-%lx\n",
-				crd+1, board_desc[bd->type], memory_size/1024,
-				bd->port,bd->membase,bd->membase+memory_size-1);
-
-		if (boards[crd].memsize == 0)
-			boards[crd].memsize = memory_size;
-		else
-			if (boards[crd].memsize != memory_size) {
-			    printk("PC/Xx: memory size mismatch:supplied=%lx(%ldK) probed=%ld(%ldK)\n",
-				    boards[crd].memsize, boards[crd].memsize / 1024,
-				    memory_size, memory_size / 1024);
-			    continue;
-			}
-
-		memaddr = (unchar *)phys_to_virt(bd->membase);
-
-		if (verbose)
-			printk("Resetting board and testing memory access:");
-
-		outb(FEPRST|FEPMEM, bd->port);
-
-		for(i=0; (inb(bd->port) & FEPMASK) != (FEPRST|FEPMEM); i++) {
-			if(i > 1000) {
-				printk("\nPC/Xx: %s not resetting at port 0x%x! Check switch settings.\n",
-					board_desc[bd->type], bd->port);
-				bd->status = DISABLED;
-				break;
-			}
-#ifdef MODULE
-			schedule();
-#endif
-			mdelay(1);
-		}
-		if(bd->status == DISABLED)
-			continue;
-
-		memwinon(bd,0);
-		*(ulong *)(memaddr + botwin) = 0xa55a3cc3;
-		*(ulong *)(memaddr + topwin) = 0x5aa5c33c;
-
-		if(*(ulong *)(memaddr + botwin) != 0xa55a3cc3 ||
-					*(ulong *)(memaddr + topwin) != 0x5aa5c33c) {
-			printk("PC/Xx: Failed memory test at %lx for %s at port %x, check switch settings.\n",
-				bd->membase, board_desc[bd->type], bd->port);
-			bd->status = DISABLED;
-			continue;
-		}
-		if (verbose)
-			printk(" done.\n");
-
-		for(i=0; i < 16; i++) {
-			memaddr[MISCGLOBAL+i] = 0;
-		}
-
-		if(bd->type == PCXI || bd->type == PCXE) {
-			bios = memaddr + BIOSCODE + ((0xf000 - memory_seg) << 4);
-
-			if (verbose)
-				printk("Downloading BIOS to 0x%lx:", virt_to_phys(bios));
-
-			memcpy(bios, pcxx_bios, pcxx_nbios);
-
-			if (verbose)
-				printk(" done.\n");
-
-			outb(FEPMEM, bd->port);
-
-			if (verbose)
-				printk("Waiting for BIOS to become ready");
-
-			for(i=1; i <= 30; i++) {
-				if(*(ushort *)((ulong)memaddr + MISCGLOBAL) == *(ushort *)"GD" ) {
-					goto load_fep;
-				}
-				if (verbose) {
-					printk(".");
-					if (i % 50 == 0)
-						printk("\n");
-				}
-#ifdef MODULE
-				schedule();
-#endif
-				mdelay(50);
-			}
-
-			printk("\nPC/Xx: BIOS download failed for board at 0x%x(addr=%lx-%lx)!\n",
-							bd->port, bd->membase, bd->membase+bd->memsize);
-			bd->status = DISABLED;
-			continue;
-		}
-
-		if(bd->type == PCXEVE) {
-			bios = memaddr + (BIOSCODE & 0x1fff);
-			memwinon(bd,0xff);
-			
-			memcpy(bios, pcxx_bios, pcxx_nbios);
-
-			outb(FEPCLR, bd->port);
-			memwinon(bd,0);
-
-			for(i=0; i <= 1000; i++) {
-				if(*(ushort *)((ulong)memaddr + MISCGLOBAL) == *(ushort *)"GD" ) {
-					goto load_fep;
-				}
-				if (verbose) {
-					printk(".");
-					if (i % 50 == 0)
-						printk("\n");
-				}
-#ifdef MODULE
-				schedule();
-#endif
-				mdelay(10);
-			}
-
-			printk("\nPC/Xx: BIOS download failed on the %s at 0x%x!\n",
-				board_desc[bd->type], bd->port);
-			bd->status = DISABLED;
-			continue;
-		}
-
-load_fep:
-		fepos = memaddr + FEPCODE;
-		if(bd->type == PCXEVE)
-			fepos = memaddr + (FEPCODE & 0x1fff);
-
-		if (verbose)
-			printk(" ok.\nDownloading FEP/OS to 0x%lx:", virt_to_phys(fepos));
-
-		memwinon(bd, (FEPCODE >> 13));
-		memcpy(fepos, pcxx_cook, pcxx_ncook);
-		memwinon(bd, 0);
-
-		if (verbose)
-			printk(" done.\n");
-
-		*(ushort *)((ulong)memaddr + MBOX +  0) = 2;
-		*(ushort *)((ulong)memaddr + MBOX +  2) = memory_seg + FEPCODESEG;
-		*(ushort *)((ulong)memaddr + MBOX +  4) = 0;
-		*(ushort *)((ulong)memaddr + MBOX +  6) = FEPCODESEG;
-		*(ushort *)((ulong)memaddr + MBOX +  8) = 0;
-		*(ushort *)((ulong)memaddr + MBOX + 10) = pcxx_ncook;
-
-		outb(FEPMEM|FEPINT, bd->port);
-		outb(FEPMEM, bd->port);
-
-		for(i=0; *(ushort *)((ulong)memaddr + MBOX); i++) {
-			if(i > 2000) {
-				printk("PC/Xx: Command failed for the %s at 0x%x!\n",
-					board_desc[bd->type], bd->port);
-				bd->status = DISABLED;
-				break;
-			}
-#ifdef MODULE
-			schedule();
-#endif
-			mdelay(1);
-		}
-
-		if(bd->status == DISABLED)
-			continue;
-
-		if (verbose)
-			printk("Waiting for FEP/OS to become ready");
-
-		*(ushort *)(memaddr + FEPSTAT) = 0;
-		*(ushort *)(memaddr + MBOX + 0) = 1;
-		*(ushort *)(memaddr + MBOX + 2) = FEPCODESEG;
-		*(ushort *)(memaddr + MBOX + 4) = 0x4L;
-
-		outb(FEPINT, bd->port);
-		outb(FEPCLR, bd->port);
-		memwinon(bd, 0);
-
-		for(i=1; *(ushort *)((ulong)memaddr + FEPSTAT) != *(ushort *)"OS"; i++) {
-			if(i > 1000) {
-				printk("\nPC/Xx: FEP/OS download failed on the %s at 0x%x!\n",
-					board_desc[bd->type], bd->port);
-				bd->status = DISABLED;
-				break;
-			}
-			if (verbose) {
-				printk(".");
-				if (i % 50 == 0)
-					printk("\n%5d",i/50);
-			}
-#ifdef MODULE
-			schedule();
-#endif
-			mdelay(1);
-		}
-		if(bd->status == DISABLED)
-			continue;
-
-		if (verbose)
-			printk(" ok.\n");
-
-		ch = digi_channels+bd->first_minor;
-		pcxxassert(ch < digi_channels+nbdevs, "ch out of range");
-
-		bc = (volatile struct board_chan *)((ulong)memaddr + CHANSTRUCT);
-		gd = (volatile struct global_data *)((ulong)memaddr + GLOBAL);
-
-		if((bd->type == PCXEVE) && (*(ushort *)((ulong)memaddr+NPORT) < 3))
-			shrinkmem = 1;
-
-		bd->region = request_region(bd->port, 4, "PC/Xx");
-
-		if (!bd->region) {
-			printk(KERN_ERR "I/O port 0x%x is already used\n", bd->port);
-			ret = -EBUSY;
-			goto cleanup_boards;
-		}
-
-		for(i=0; i < bd->numports; i++, ch++, bc++) {
-			if(((ushort *)((ulong)memaddr + PORTBASE))[i] == 0) {
-				ch->brdchan = 0;
-				continue;
-			}
-			ch->brdchan = bc;
-			ch->mailbox = gd;
-			INIT_WORK(&ch->tqueue, do_softint, ch);
-			ch->board = &boards[crd];
-#ifdef DEFAULT_HW_FLOW
-			ch->digiext.digi_flags = RTSPACE|CTSPACE;
-#endif
-			if(boards[crd].altpin) {
-				ch->dsr = CD;
-				ch->dcd = DSR;
-				ch->digiext.digi_flags |= DIGI_ALTPIN;
-			} else { 
-				ch->dcd = CD;
-				ch->dsr = DSR;
-			}
-
-			ch->magic = PCXX_MAGIC;
-			ch->boardnum = crd;
-			ch->channelnum = i;
-
-			ch->dev = bd->first_minor + i;
-			ch->tty = 0;
-
-			if(shrinkmem) {
-				fepcmd(ch, SETBUFFER, 32, 0, 0, 0);
-				shrinkmem = 0;
-			}
-			
-			if(bd->type != PCXEVE) {
-				ch->txptr = memaddr+((bc->tseg-memory_seg) << 4);
-				ch->rxptr = memaddr+((bc->rseg-memory_seg) << 4);
-				ch->txwin = ch->rxwin = 0;
-			} else {
-				ch->txptr = memaddr+(((bc->tseg-memory_seg) << 4) & 0x1fff);
-				ch->txwin = FEPWIN | ((bc->tseg-memory_seg) >> 9);
-				ch->rxptr = memaddr+(((bc->rseg-memory_seg) << 4) & 0x1fff);
-				ch->rxwin = FEPWIN | ((bc->rseg-memory_seg) >>9 );
-			}
-
-			ch->txbufsize = bc->tmax + 1;
-			ch->rxbufsize = bc->rmax + 1;
-			ch->tmp_buf = kmalloc(ch->txbufsize,GFP_KERNEL);
-			init_MUTEX(&ch->tmp_buf_sem);
-
-			if (!ch->tmp_buf) {
-				printk(KERN_ERR "Unable to allocate memory for temp buffers\n");
-				goto cleanup_boards;
-			}
-
-			lowwater = ch->txbufsize >= 2000 ? 1024 : ch->txbufsize/2;
-			fepcmd(ch, STXLWATER, lowwater, 0, 10, 0);
-			fepcmd(ch, SRXLWATER, ch->rxbufsize/4, 0, 10, 0);
-			fepcmd(ch, SRXHWATER, 3 * ch->rxbufsize/4, 0, 10, 0);
-
-			bc->edelay = 100;
-			bc->idata = 1;
-
-			ch->startc = bc->startc;
-			ch->stopc = bc->stopc;
-			ch->startca = bc->startca;
-			ch->stopca = bc->stopca;
-
-			ch->fepcflag = 0;
-			ch->fepiflag = 0;
-			ch->fepoflag = 0;
-			ch->fepstartc = 0;
-			ch->fepstopc = 0;
-			ch->fepstartca = 0;
-			ch->fepstopca = 0;
-
-			ch->close_delay = 50;
-			ch->count = 0;
-			ch->blocked_open = 0;
-			init_waitqueue_head(&ch->open_wait);
-			init_waitqueue_head(&ch->close_wait);
-			ch->asyncflags = 0;
-		}
-
-		if (verbose)
-		    printk("Card No. %d ready: %s (%s) I/O=0x%x Mem=0x%lx Ports=%d\n", 
-			    crd+1, board_desc[bd->type], board_mem[bd->type], bd->port, 
-			    bd->membase, bd->numports);
-		else
-		    printk("PC/Xx: %s (%s) I/O=0x%x Mem=0x%lx Ports=%d\n", 
-			    board_desc[bd->type], board_mem[bd->type], bd->port, 
-			    bd->membase, bd->numports);
-
-		memwinoff(bd, 0);
-		enabled_cards++;
-	}
-
-	if (enabled_cards <= 0) {
-		printk(KERN_NOTICE "PC/Xx: No cards enabled, no driver.\n");
-		ret = -EIO;
-		goto cleanup_boards;
-	}
-
-	ret = tty_register_driver(pcxe_driver);
-	if(ret) {
-		printk(KERN_ERR "Couldn't register PC/Xe driver\n");
-		goto cleanup_boards;
-	}
-
-	/*
-	 * Start up the poller to check for events on all enabled boards
-	 */
-	mod_timer(&pcxx_timer, HZ/25);
-
-	if (verbose)
-		printk(KERN_NOTICE "PC/Xx: Driver with %d card(s) ready.\n", enabled_cards);
-
-	return 0;
-cleanup_boards:
-	cleanup_board_resources();
-	kfree(digi_channels);
-	put_tty_driver(pcxe_driver);
-	return ret;
-}
-
-module_init(pcxe_init)
-module_exit(pcxe_cleanup)
-
-static void pcxxpoll(unsigned long dummy)
-{
-	unsigned long flags;
-	int crd;
-	volatile unsigned int head, tail;
-	struct channel *ch;
-	struct board_info *bd;
-
-	save_flags(flags);
-	cli();
-
-	for(crd=0; crd < numcards; crd++) {
-		bd = &boards[crd];
-
-		ch = digi_channels+bd->first_minor;
-
-		if(bd->status == DISABLED)
-			continue;
-
-		assertmemoff(ch);
-
-		globalwinon(ch);
-		head = ch->mailbox->ein;
-		tail = ch->mailbox->eout;
-
-		if(head != tail)
-			doevent(crd);
-
-		memoff(ch);
-	}
-
-	mod_timer(&pcxx_timer, jiffies + HZ/25);
-	restore_flags(flags);
-}
-
-static void doevent(int crd)
-{
-	volatile struct board_info *bd;
-	static struct tty_struct *tty;
-	volatile struct board_chan *bc;
-	volatile unchar *eventbuf;
-	volatile unsigned int head;
-	volatile unsigned int tail;
-	struct channel *ch;
-	struct channel *chan0;
-	int channel, event, mstat, lstat;
-
-	bd = &boards[crd];
-
-	chan0 = digi_channels+bd->first_minor;
-	pcxxassert(chan0 < digi_channels+nbdevs, "ch out of range");
-
-
-	assertgwinon(chan0);
-
-	while ((tail = chan0->mailbox->eout) != (head = chan0->mailbox->ein)) {
-		assertgwinon(chan0);
-		eventbuf = (volatile unchar *)phys_to_virt(bd->membase + tail + ISTART);
-		channel = eventbuf[0];
-		event = eventbuf[1];
-		mstat = eventbuf[2];
-		lstat = eventbuf[3];
-
-		ch=chan0+channel;
-
-		if ((unsigned)channel >= bd->numports || !ch) { 
-			printk("physmem=%lx, tail=%x, head=%x\n", bd->membase, tail, head);
-			printk("doevent(%x) channel %x, event %x, mstat %x, lstat %x\n",
-					crd, (unsigned)channel, event, (unsigned)mstat, lstat);
-			if(channel >= bd->numports)
-				ch = chan0;
-			bc = ch->brdchan;
-			goto next;
-		}
-		if ((bc = ch->brdchan) == NULL)
-			goto next;
-
-		if (event & DATA_IND) {
-			receive_data(ch);
-			assertgwinon(ch);
-		}
-
-		if (event & MODEMCHG_IND) {
-			ch->imodem = mstat;
-			if (ch->asyncflags & ASYNC_NORMAL_ACTIVE) {
-				if (ch->asyncflags & ASYNC_CHECK_CD) {
-					if (mstat & ch->dcd) {
-						wake_up_interruptible(&ch->open_wait);
-					} else {
-						pcxe_sched_event(ch, PCXE_EVENT_HANGUP);
-					}
-				}
-			}
-		}
-
-		tty = ch->tty;
-
-		if (tty) {
-
-			if (event & BREAK_IND) {
-				tty->flip.count++;
-				*tty->flip.flag_buf_ptr++ = TTY_BREAK;
-				*tty->flip.char_buf_ptr++ = 0;
-#if 0
-				if (ch->asyncflags & ASYNC_SAK)
-					do_SAK(tty);
-#endif
-				tty_schedule_flip(tty); 
-			}
-
-			if (event & LOWTX_IND) {
-				if (ch->statusflags & LOWWAIT) {
-					ch->statusflags &= ~LOWWAIT;
-					tty_wakeup(tty);
-				}
-			}
-
-			if (event & EMPTYTX_IND) {
-				ch->statusflags &= ~TXBUSY;
-				if (ch->statusflags & EMPTYWAIT) {
-					ch->statusflags &= ~EMPTYWAIT;
-					tty_wakeup(tty);
-				}
-			}
-		}
-
-	next:
-		globalwinon(ch);
-		if(!bc) printk("bc == NULL in doevent!\n");
-		else bc->idata = 1;
-
-		chan0->mailbox->eout = (tail+4) & (IMAX-ISTART-4);
-		globalwinon(chan0);
-	}
-
-}
-
-
-static void 
-fepcmd(struct channel *ch, int cmd, int word_or_byte, int byte2, int ncmds,
-						int bytecmd)
-{
-	unchar *memaddr;
-	unsigned int head, tail;
-	long count;
-	int n;
-
-	if(ch->board->status == DISABLED)
-		return;
-
-	assertgwinon(ch);
-
-	memaddr = (unchar *)phys_to_virt(ch->board->membase);
-	head = ch->mailbox->cin;
-
-	if(head >= (CMAX-CSTART) || (head & 03)) {
-		printk("line %d: Out of range, cmd=%x, head=%x\n", __LINE__, cmd, head);
-		return;
-	}
-
-	if(bytecmd) {
-		*(unchar *)(memaddr+head+CSTART+0) = cmd;
-
-		*(unchar *)(memaddr+head+CSTART+1) = ch->dev - ch->board->first_minor;
-
-		*(unchar *)(memaddr+head+CSTART+2) = word_or_byte;
-		*(unchar *)(memaddr+head+CSTART+3) = byte2;
-	} else {
-		*(unchar *)(memaddr+head+CSTART+0) = cmd;
-
-		*(unchar *)(memaddr+head+CSTART+1) = ch->dev - ch->board->first_minor;
-		*(ushort*)(memaddr+head+CSTART+2) = word_or_byte;
-	}
-
-	head = (head+4) & (CMAX-CSTART-4);
-	ch->mailbox->cin = head;
-
-	count = FEPTIMEOUT;
-
-	while(1) {
-		count--;
-		if(count == 0) {
-			printk("Fep not responding in fepcmd()\n");
-			return;
-		}
-
-		head = ch->mailbox->cin;
-		tail = ch->mailbox->cout;
-
-		n = (head-tail) & (CMAX-CSTART-4);
-
-		if(n <= ncmds * (sizeof(short)*4))
-			break;
-		/* Seems not to be good here: schedule(); */
-	}
-}
-
-
-static unsigned termios2digi_c(struct channel *ch, unsigned cflag)
-{
-	unsigned res = 0;
-	if (cflag & CBAUDEX)
-	{
-		ch->digiext.digi_flags |= DIGI_FAST;
-		res |= FEP_HUPCL;
-		/* This gets strange but if we don't do this we will get 78600
-		 * instead of 115200. 57600 is mapped to 50 baud yielding 57600 in
-		 * FAST mode. 115200 is mapped to 75. We need to map it to 110 to
-		 * do 115K
-		 */
-		if (cflag & B115200) res|=1;
-	}
-	else ch->digiext.digi_flags &= ~DIGI_FAST;
-	res |= cflag & (CBAUD | PARODD | PARENB | CSTOPB | CSIZE | CLOCAL);
-	return res;
-}
-
-static unsigned termios2digi_i(struct channel *ch, unsigned iflag)
-{
-	unsigned res = iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK|ISTRIP|IXON|IXANY|IXOFF);
-	
-	if(ch->digiext.digi_flags & DIGI_AIXON)
-		res |= IAIXON;
-	return res;
-}
-
-static unsigned termios2digi_h(struct channel *ch, unsigned cflag)
-{
-	unsigned res = 0;
-
-	if(cflag & CRTSCTS) {
-		ch->digiext.digi_flags |= (RTSPACE|CTSPACE);
-		res |= (CTS | RTS);
-	}
-	if(ch->digiext.digi_flags & RTSPACE)
-		res |= RTS;
-	if(ch->digiext.digi_flags & DTRPACE)
-		res |= DTR;
-	if(ch->digiext.digi_flags & CTSPACE)
-		res |= CTS;
-	if(ch->digiext.digi_flags & DSRPACE)
-		res |= ch->dsr;
-	if(ch->digiext.digi_flags & DCDPACE)
-		res |= ch->dcd;
-
-	if (res & RTS)
-		ch->digiext.digi_flags |= RTSPACE;
-	if (res & CTS)
-		ch->digiext.digi_flags |= CTSPACE;
-
-	return res;
-}
-
-static void pcxxparam(struct tty_struct *tty, struct channel *ch)
-{
-	volatile struct board_chan *bc;
-	unsigned int head;
-	unsigned mval, hflow, cflag, iflag;
-	struct termios *ts;
-
-	bc = ch->brdchan;
-	assertgwinon(ch);
-	ts = tty->termios;
-
-	if((ts->c_cflag & CBAUD) == 0) {
-		head = bc->rin;
-		bc->rout = head;
-		head = bc->tin;
-		fepcmd(ch, STOUT, (unsigned) head, 0, 0, 0);
-		mval = 0;
-	} else {
-
-		cflag = termios2digi_c(ch, ts->c_cflag);
-
-		if(cflag != ch->fepcflag) {
-			ch->fepcflag = cflag;
-			fepcmd(ch, SETCTRLFLAGS, (unsigned) cflag, 0, 0, 0);
-		}
-
-		if(cflag & CLOCAL)
-			ch->asyncflags &= ~ASYNC_CHECK_CD;
-		else {
-			ch->asyncflags |= ASYNC_CHECK_CD;
-		}
-
-		mval = DTR | RTS;
-	}
-
-	iflag = termios2digi_i(ch, ts->c_iflag);
-
-	if(iflag != ch->fepiflag) {
-		ch->fepiflag = iflag;
-		fepcmd(ch, SETIFLAGS, (unsigned int) ch->fepiflag, 0, 0, 0);
-	}
-
-	bc->mint = ch->dcd;
-	if((ts->c_cflag & CLOCAL) || (ch->digiext.digi_flags & DIGI_FORCEDCD))
-		if(ch->digiext.digi_flags & DIGI_FORCEDCD)
-			bc->mint = 0;
-
-	ch->imodem = bc->mstat;
-
-	hflow = termios2digi_h(ch, ts->c_cflag);
-
-	if(hflow != ch->hflow) {
-		ch->hflow = hflow;
-		fepcmd(ch, SETHFLOW, hflow, 0xff, 0, 1);
-	}
-
-	/* mval ^= ch->modemfake & (mval ^ ch->modem); */
-
-	if(ch->omodem != mval) {
-		ch->omodem = mval;
-		fepcmd(ch, SETMODEM, mval, RTS|DTR, 0, 1);
-	}
-
-	if(ch->startc != ch->fepstartc || ch->stopc != ch->fepstopc) {
-		ch->fepstartc = ch->startc;
-		ch->fepstopc = ch->stopc;
-		fepcmd(ch, SONOFFC, ch->fepstartc, ch->fepstopc, 0, 1);
-	}
-
-	if(ch->startca != ch->fepstartca || ch->stopca != ch->fepstopca) {
-		ch->fepstartca = ch->startca;
-		ch->fepstopca = ch->stopca;
-		fepcmd(ch, SAUXONOFFC, ch->fepstartca, ch->fepstopca, 0, 1);
-	}
-}
-
-
-static void receive_data(struct channel *ch)
-{
-	volatile struct board_chan *bc;
-	struct tty_struct *tty;
-	unsigned int tail, head, wrapmask;
-	int n;
-	int piece;
-	struct termios *ts=0;
-	unchar *rptr;
-	int rc;
-	int wrapgap;
-
-    globalwinon(ch);
-
-	if (ch->statusflags & RXSTOPPED)
-		return;
-
-	tty = ch->tty;
-	if(tty)
-		ts = tty->termios;
-
-	bc = ch->brdchan;
-
-	if(!bc) {
-		printk("bc is NULL in receive_data!\n");
-		return;
-	}
-
-	wrapmask = ch->rxbufsize - 1;
-
-	head = bc->rin;
-	head &= wrapmask;
-	tail = bc->rout & wrapmask;
-
-	n = (head-tail) & wrapmask;
-
-	if(n == 0)
-		return;
-
-	/*
-	 * If CREAD bit is off or device not open, set TX tail to head
-	 */
-	if(!tty || !ts || !(ts->c_cflag & CREAD)) {
-		bc->rout = head;
-		return;
-	}
-
-	if(tty->flip.count == TTY_FLIPBUF_SIZE) {
-		/* printk("tty->flip.count = TTY_FLIPBUF_SIZE\n"); */
-		return;
-	}
-
-	if(bc->orun) {
-		bc->orun = 0;
-		printk("overrun! DigiBoard device %s\n", tty->name);
-	}
-
-	rxwinon(ch);
-	rptr = tty->flip.char_buf_ptr;
-	rc = tty->flip.count;
-	while(n > 0) {
-		wrapgap = (head >= tail) ? head - tail : ch->rxbufsize - tail;
-		piece = (wrapgap < n) ? wrapgap : n;
-
-		/*
-		 * Make sure we don't overflow the buffer
-		 */
-
-		if ((rc + piece) > TTY_FLIPBUF_SIZE)
-			piece = TTY_FLIPBUF_SIZE - rc;
-
-		if (piece == 0)
-			break;
-
-		memcpy(rptr, ch->rxptr + tail, piece);
-		rptr += piece;
-		rc += piece;
-		tail = (tail + piece) & wrapmask;
-		n -= piece;
-	}
-	tty->flip.count = rc;
-	tty->flip.char_buf_ptr = rptr;
-    globalwinon(ch);
-	bc->rout = tail;
-
-	/* Must be called with global data */
-	tty_schedule_flip(ch->tty); 
-	return;
-}
-
-
-static int pcxe_tiocmget(struct tty_struct *tty, struct file *file)
-{
-	struct channel *ch = (struct channel *) tty->driver_data;
-	volatile struct board_chan *bc;
-	unsigned long flags;
-	int mflag = 0;
-	int mstat;
-
-	if(ch)
-		bc = ch->brdchan;
-	else {
-		printk("ch is NULL in %s!\n", __FUNCTION__);
-		return(-EINVAL);
-	}
-
-	save_flags(flags);
-	cli();
-	globalwinon(ch);
-	mstat = bc->mstat;
-	memoff(ch);
-	restore_flags(flags);
-
-	if(mstat & DTR)
-		mflag |= TIOCM_DTR;
-	if(mstat & RTS)
-		mflag |= TIOCM_RTS;
-	if(mstat & CTS)
-		mflag |= TIOCM_CTS;
-	if(mstat & ch->dsr)
-		mflag |= TIOCM_DSR;
-	if(mstat & RI)
-		mflag |= TIOCM_RI;
-	if(mstat & ch->dcd)
-		mflag |= TIOCM_CD;
-
-	return mflag;
-}
-
-
-static int pcxe_tiocmset(struct tty_struct *tty, struct file *file,
-			 unsigned int set, unsigned int clear)
-{
-	struct channel *ch = (struct channel *) tty->driver_data;
-	volatile struct board_chan *bc;
-	unsigned long flags;
-
-	if(ch)
-		bc = ch->brdchan;
-	else {
-		printk("ch is NULL in %s!\n", __FUNCTION__);
-		return(-EINVAL);
-	}
-
-	save_flags(flags);
-	cli();
-	/*
-	 * I think this modemfake stuff is broken.  It doesn't
-	 * correctly reflect the behaviour desired by the TIOCM*
-	 * ioctls.  Therefore this is probably broken.
-	 */
-	if (set & TIOCM_DTR) {
-		ch->modemfake |= DTR;
-		ch->modem |= DTR;
-	}
-	if (set & TIOCM_RTS) {
-		ch->modemfake |= RTS;
-		ch->modem |= RTS;
-	}
-
-	if (clear & TIOCM_DTR) {
-		ch->modemfake |= DTR;
-		ch->modem &= ~DTR;
-	}
-	if (clear & TIOCM_RTS) {
-		ch->modemfake |= RTS;
-		ch->modem &= ~RTS;
-	}
-	globalwinon(ch);
-	pcxxparam(tty,ch);
-	memoff(ch);
-	restore_flags(flags);
-	return 0;
-}
-
-
-static int pcxe_ioctl(struct tty_struct *tty, struct file * file,
-		    unsigned int cmd, unsigned long arg)
-{
-	struct channel *ch = (struct channel *) tty->driver_data;
-	volatile struct board_chan *bc;
-	int retval;
-	unsigned int mflag, mstat;
-	unsigned char startc, stopc;
-	unsigned long flags;
-	digiflow_t dflow;
-
-	if(ch)
-		bc = ch->brdchan;
-	else {
-		printk("ch is NULL in pcxe_ioctl!\n");
-		return(-EINVAL);
-	}
-
-	save_flags(flags);
-
-	switch(cmd) {
-		case TCSBRK:	/* SVID version: non-zero arg --> no break */
-			retval = tty_check_change(tty);
-			if(retval)
-				return retval;
-			setup_empty_event(tty,ch);		
-			tty_wait_until_sent(tty, 0);
-			if(!arg)
-				digi_send_break(ch, HZ/4);    /* 1/4 second */
-			return 0;
-
-		case TCSBRKP:	/* support for POSIX tcsendbreak() */
-			retval = tty_check_change(tty);
-			if(retval)
-				return retval;
-			setup_empty_event(tty,ch);		
-			tty_wait_until_sent(tty, 0);
-			digi_send_break(ch, arg ? arg*(HZ/10) : HZ/4);
-			return 0;
-
-		case TIOCGSOFTCAR:
-			return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned int *)arg);
-
-		case TIOCSSOFTCAR:
-			{
-			    unsigned int value;
-			    if (get_user(value, (unsigned int *) arg))
-				    return -EFAULT;
-			    tty->termios->c_cflag = ((tty->termios->c_cflag & ~CLOCAL) | (value ? CLOCAL : 0));
-			}
-			return 0;
-
-		case TIOCMODG:
-			mflag = pcxe_tiocmget(tty, file);
-			if (put_user(mflag, (unsigned int *) arg))
-				return -EFAULT;
-			break;
-
-		case TIOCMODS:
-			if (get_user(mstat, (unsigned int *) arg))
-				return -EFAULT;
-			return pcxe_tiocmset(tty, file, mstat, ~mstat);
-
-		case TIOCSDTR:
-			cli();
-			ch->omodem |= DTR;
-			globalwinon(ch);
-			fepcmd(ch, SETMODEM, DTR, 0, 10, 1);
-			memoff(ch);
-			restore_flags(flags);
-			break;
-
-		case TIOCCDTR:
-			ch->omodem &= ~DTR;
-			cli();
-			globalwinon(ch);
-			fepcmd(ch, SETMODEM, 0, DTR, 10, 1);
-			memoff(ch);
-			restore_flags(flags);
-			break;
-
-		case DIGI_GETA:
-			if (copy_to_user((char*)arg, &ch->digiext, sizeof(digi_t)))
-				return -EFAULT;
-			break;
-
-		case DIGI_SETAW:
-		case DIGI_SETAF:
-			if(cmd == DIGI_SETAW) {
-				setup_empty_event(tty,ch);		
-				tty_wait_until_sent(tty, 0);
-			}
-			else {
-				tty_ldisc_flush(tty);
-			}
-
-			/* Fall Thru */
-
-		case DIGI_SETA:
-			if (copy_from_user(&ch->digiext, (char*)arg, sizeof(digi_t)))
-				return -EFAULT;
-#ifdef DEBUG_IOCTL
-			printk("ioctl(DIGI_SETA): flags = %x\n", ch->digiext.digi_flags);
-#endif
-			
-			if(ch->digiext.digi_flags & DIGI_ALTPIN) {
-				ch->dcd = DSR;
-				ch->dsr = CD;
-			} else {
-				ch->dcd = CD;
-				ch->dsr = DSR;
-			}
-		
-			cli();
-			globalwinon(ch);
-			pcxxparam(tty,ch);
-			memoff(ch);
-			restore_flags(flags);
-			break;
-
-		case DIGI_GETFLOW:
-		case DIGI_GETAFLOW:
-			cli();	
-			globalwinon(ch);
-			if(cmd == DIGI_GETFLOW) {
-				dflow.startc = bc->startc;
-				dflow.stopc = bc->stopc;
-			} else {
-				dflow.startc = bc->startca;
-				dflow.stopc = bc->stopca;
-			}
-			memoff(ch);
-			restore_flags(flags);
-
-			if (copy_to_user((char*)arg, &dflow, sizeof(dflow)))
-				return -EFAULT;
-			break;
-
-		case DIGI_SETAFLOW:
-		case DIGI_SETFLOW:
-			if(cmd == DIGI_SETFLOW) {
-				startc = ch->startc;
-				stopc = ch->stopc;
-			} else {
-				startc = ch->startca;
-				stopc = ch->stopca;
-			}
-
-			if (copy_from_user(&dflow, (char*)arg, sizeof(dflow)))
-				return -EFAULT;
-
-			if(dflow.startc != startc || dflow.stopc != stopc) {
-				cli();
-				globalwinon(ch);
-
-				if(cmd == DIGI_SETFLOW) {
-					ch->fepstartc = ch->startc = dflow.startc;
-					ch->fepstopc = ch->stopc = dflow.stopc;
-					fepcmd(ch,SONOFFC,ch->fepstartc,ch->fepstopc,0, 1);
-				} else {
-					ch->fepstartca = ch->startca = dflow.startc;
-					ch->fepstopca  = ch->stopca = dflow.stopc;
-					fepcmd(ch, SAUXONOFFC, ch->fepstartca, ch->fepstopca, 0, 1);
-				}
-
-				if(ch->statusflags & TXSTOPPED)
-					pcxe_start(tty);
-
-				memoff(ch);
-				restore_flags(flags);
-			}
-			break;
-
-		default:
-			return -ENOIOCTLCMD;
-	}
-
-	return 0;
-}
-
-static void pcxe_set_termios(struct tty_struct *tty, struct termios *old_termios)
-{
-	struct channel *info;
-
-	if ((info=chan(tty))!=NULL) {
-		unsigned long flags;
-		save_flags(flags);
-		cli();
-		globalwinon(info);
-		pcxxparam(tty,info);
-		memoff(info);
-
-		if ((old_termios->c_cflag & CRTSCTS) &&
-			((tty->termios->c_cflag & CRTSCTS) == 0))
-			tty->hw_stopped = 0;
-		if(!(old_termios->c_cflag & CLOCAL) &&
-			(tty->termios->c_cflag & CLOCAL))
-			wake_up_interruptible(&info->open_wait);
-		restore_flags(flags);
-	}
-}
-
-
-
-static void do_softint(void *private_)
-{
-	struct channel *info = (struct channel *) private_;
-	
-	if(info && info->magic == PCXX_MAGIC) {
-		struct tty_struct *tty = info->tty;
-		if (tty && tty->driver_data) {
-			if(test_and_clear_bit(PCXE_EVENT_HANGUP, &info->event)) {
-				tty_hangup(tty);
-				wake_up_interruptible(&info->open_wait);
-				info->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
-			}
-		}
-	}
-}
-
-
-static void pcxe_stop(struct tty_struct *tty)
-{
-	struct channel *info;
-
-	if ((info=chan(tty))!=NULL) {
-		unsigned long flags;
-		save_flags(flags); 
-		cli();
-		if ((info->statusflags & TXSTOPPED) == 0) {
-			globalwinon(info);
-			fepcmd(info, PAUSETX, 0, 0, 0, 0);
-			info->statusflags |= TXSTOPPED;
-			memoff(info);
-		}
-		restore_flags(flags);
-	}
-}
-
-static void pcxe_throttle(struct tty_struct * tty)
-{
-	struct channel *info;
-
-	if ((info=chan(tty))!=NULL) {
-		unsigned long flags;
-		save_flags(flags);
-		cli();
-		if ((info->statusflags & RXSTOPPED) == 0) {
-			globalwinon(info);
-			fepcmd(info, PAUSERX, 0, 0, 0, 0);
-			info->statusflags |= RXSTOPPED;
-			memoff(info);
-		}
-		restore_flags(flags);
-	}
-}
-
-static void pcxe_unthrottle(struct tty_struct *tty)
-{
-	struct channel *info;
-
-	if ((info=chan(tty)) != NULL) {
-		unsigned long flags;
-
-		/* Just in case output was resumed because of a change in Digi-flow */
-		save_flags(flags);
-		cli();
-		if(info->statusflags & RXSTOPPED) {
-			volatile struct board_chan *bc;
-			globalwinon(info);
-			bc = info->brdchan;
-			fepcmd(info, RESUMERX, 0, 0, 0, 0);
-			info->statusflags &= ~RXSTOPPED;
-			memoff(info);
-		}
-		restore_flags(flags);
-	}
-}
-
-
-static void pcxe_start(struct tty_struct *tty)
-{
-	struct channel *info;
-
-	if ((info=chan(tty))!=NULL) {
-		unsigned long flags;
-
-		save_flags(flags);
-		cli();
-		/* Just in case output was resumed because of a change in Digi-flow */
-		if(info->statusflags & TXSTOPPED) {
-			volatile struct board_chan *bc;
-			globalwinon(info);
-			bc = info->brdchan;
-			if(info->statusflags & LOWWAIT)
-				bc->ilow = 1;
-			fepcmd(info, RESUMETX, 0, 0, 0, 0);
-			info->statusflags &= ~TXSTOPPED;
-			memoff(info);
-		}
-		restore_flags(flags);
-	}
-}
-
-
-void digi_send_break(struct channel *ch, int msec)
-{
-	unsigned long flags;
-
-	save_flags(flags);
-	cli();
-	globalwinon(ch);
-
-	/* 
-	 * Maybe I should send an infinite break here, schedule() for
-	 * msec amount of time, and then stop the break.  This way,
-	 * the user can't screw up the FEP by causing digi_send_break()
-	 * to be called (i.e. via an ioctl()) more than once in msec amount 
-	 * of time.  Try this for now...
-	 */
-
-	fepcmd(ch, SENDBREAK, msec, 0, 10, 0);
-	memoff(ch);
-
-	restore_flags(flags);
-}
-
-static void setup_empty_event(struct tty_struct *tty, struct channel *ch)
-{
-	volatile struct board_chan *bc;
-	unsigned long flags;
-
-	save_flags(flags);
-	cli();
-	globalwinon(ch);
-	ch->statusflags |= EMPTYWAIT;
-	bc = ch->brdchan;
-	bc->iempty = 1;
-	memoff(ch);
-	restore_flags(flags);
-}