remove old pccons console driver. Not used anymore and not maintained.

ok millert@, miod@.

3 files changed, 1 insertions, 2005 deletions

diff --git a/sys/arch/i386/conf/files.i386 b/sys/arch/i386/conf/files.i386
index 3ee4b0ffaa6..1dbc3ab3805 100644
--- a/sys/arch/i386/conf/files.i386
+++ b/sys/arch/i386/conf/files.i386
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.i386,v 1.95 2002/03/23 14:14:25 deraadt Exp $
+#	$OpenBSD: files.i386,v 1.96 2002/06/17 23:10:56 matthieu Exp $
 #	$NetBSD: files.i386,v 1.73 1996/05/07 00:58:36 thorpej Exp $
 #
 # new style config file for i386 architecture
@@ -137,13 +137,6 @@ attach	pccom at isa with pccom_isa
 attach	pccom at commulti with pccom_commulti
 file	arch/i386/isa/pccom.c		pccom & (pccom_isa | pccom_isapnp | pccom_commulti | pccom_pcmcia | pccom_cardbus | pccom_puc) needs-flag
 
-# PC console support a la "pccons"
-device	pc: tty, pckbcport
-attach	pc at isa
-device	pcconskbd
-attach	pcconskbd at pckbc
-file	arch/i386/isa/pccons.c		pc | pcconskbd needs-flag
-
 # PC Mice; Logitech-style, Microsoft-style, and PS/2-style
 device	lms: wsmousedev
 attach	lms at isa
diff --git a/sys/arch/i386/include/pccons.h b/sys/arch/i386/include/pccons.h
deleted file mode 100644
index 3195344edf3..00000000000
--- a/sys/arch/i386/include/pccons.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*	$OpenBSD: pccons.h,v 1.7 2002/03/14 01:26:33 millert Exp $	*/
-/*	$NetBSD: pccons.h,v 1.4 1996/02/02 18:06:06 mycroft Exp $	*/
-
-/*
- * pccons.h -- pccons ioctl definitions
- */
-
-#ifndef _PCCONS_H_
-#define _PCCONS_H_
-
-#include <sys/ioctl.h>
-
-/* key types -- warning: pccons.c depends on most values */
-
-#define	KB_SCROLL	0x0001	/* stop output */
-#define	KB_NUM		0x0002	/* numeric shift  cursors vs. numeric */
-#define	KB_CAPS		0x0004	/* caps shift -- swaps case of letter */
-#define	KB_SHIFT	0x0008	/* keyboard shift */
-#define	KB_CTL		0x0010	/* control shift  -- allows ctl function */
-#define	KB_ASCII	0x0020	/* ascii code for this key */
-#define	KB_ALTGR	0x0040	/* alternate graphics shift */
-#define	KB_ALT		0x0080	/* alternate shift -- alternate chars */
-#define	KB_FUNC		0x0100	/* function key */
-#define	KB_KP		0x0200	/* Keypad keys */
-#define	KB_NONE		0x0400	/* no function */
-
-#define	KB_CODE_SIZE	4	/* Use a max of 4 for now... */
-#define KB_NUM_KEYS	128	/* Number of scan codes */
-typedef struct {
-	u_short	type;
-	char unshift[KB_CODE_SIZE];
-	char shift[KB_CODE_SIZE];
-	char ctl[KB_CODE_SIZE];
-	char altgr[KB_CODE_SIZE];
-	char shift_altgr[KB_CODE_SIZE];
-} pccons_keymap_t;
-
-#define CONSOLE_X_MODE_ON		_IO('t',121)
-#define CONSOLE_X_MODE_OFF		_IO('t',122)
-#define CONSOLE_X_BELL			_IOW('t',123,int[2])
-#define CONSOLE_SET_TYPEMATIC_RATE	_IOW('t',124,u_char)
-#define CONSOLE_GET_KEYMAP		_IOR('t',128,pccons_keymap_t[KB_NUM_KEYS])
-#define CONSOLE_SET_KEYMAP		_IOW('t',129,pccons_keymap_t[KB_NUM_KEYS])
-#define CONSOLE_SET_BLANK		_IOW('t',130,int)
-
-#ifdef _KERNEL
-int pccnattach(void);
-
-#if (NPCCONSKBD > 0)
-int pcconskbd_cnattach	_P((pckbc_tag_t, pckbc_slot_t));
-#endif
-
-#endif	/* _KERNEL */
-
-#endif /* _PCCONS_H_ */
diff --git a/sys/arch/i386/isa/pccons.c b/sys/arch/i386/isa/pccons.c
deleted file mode 100644
index 873dec344eb..00000000000
--- a/sys/arch/i386/isa/pccons.c
+++ /dev/null
@@ -1,1942 +0,0 @@
-/*	$OpenBSD: pccons.c,v 1.50 2002/03/14 03:15:54 millert Exp $	*/
-/*	$NetBSD: pccons.c,v 1.99.4.1 1996/06/04 20:03:53 cgd Exp $	*/
-
-/*-
- * Copyright (c) 1993, 1994, 1995 Charles Hannum.  All rights reserved.
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz and Don Ahn.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)pccons.c	5.11 (Berkeley) 5/21/91
- */
-
-/*
- * code to work keyboard & display for PC-style console
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/ioctl.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <sys/select.h>
-#include <sys/fcntl.h>
-#include <sys/tty.h>
-#include <sys/uio.h>
-#include <sys/kernel.h>
-#include <sys/syslog.h>
-#include <sys/device.h>
-#include <sys/timeout.h>
-#ifdef DDB
-#include <ddb/db_var.h>
-#endif
-
-#include <dev/cons.h>
-
-#include <machine/cpu.h>
-#include <machine/intr.h>
-#include <machine/pio.h>
-#include <machine/pc/display.h>
-#include <machine/pccons.h>
-#include <machine/conf.h>
-
-#include <dev/isa/isareg.h>
-#include <dev/isa/isavar.h>
-#include <dev/ic/mc6845.h>
-#include <i386/isa/isa_machdep.h>
-#include <i386/isa/kbdreg.h>
-
-#define	XFREE86_BUG_COMPAT
-
-#ifndef BEEP_FREQ
-#define BEEP_FREQ 1500
-#endif
-#ifndef BEEP_TIME
-#define BEEP_TIME (hz/5)
-#endif
-
-#define PCBURST 128
-
-static u_short *Crtat;			/* pointer to backing store */
-static u_short *crtat;			/* pointer to current char */
-static volatile u_char ack, nak;	/* Don't ask. */
-static u_char async, kernel, polling;	/* Really, you don't want to know. */
-static u_char lock_state = 0x00,	/* all off */
-	      old_lock_state = 0xff,
-	      typematic_rate = 0xff,	/* don't update until set by user */
-	      old_typematic_rate = 0xff;
-static u_short cursor_shape = 0xffff,	/* don't update until set by user */
-	       old_cursor_shape = 0xffff;
-static pccons_keymap_t	scan_codes[KB_NUM_KEYS];/* keyboard translation table */
-static int pc_blank = 300;
-#ifdef XSERVER
-int pc_xmode = 0;
-#endif
-struct timeout pccons_aup_tmo;
-struct timeout pccons_blank_tmo;
-
-#define	PCUNIT(x)	(minor(x))
-
-static struct video_state {
-	int 	cx, cy;		/* escape parameters */
-	int 	row, col;	/* current cursor position */
-	int 	nrow, ncol, nchr;	/* current screen geometry */
-	int	offset;		/* Saved cursor pos */
-	u_char	state;		/* parser state */
-#define	VSS_ESCAPE	1
-#define	VSS_EBRACE	2
-#define VSS_EBRACEQ	3
-#define	VSS_EPARAM	4
-	char	so;		/* in standout mode? */
-	char	color;		/* color or mono display */
-	char	at, save_at;	/* normal attributes */
-	char	so_at, save_so;	/* standout attributes */
-} vs;
-
-struct pc_softc {
-	struct	device sc_dev;
-	void	*sc_ih;
-	struct	tty *sc_tty;
-};
-
-int pcprobe(struct device *, void *, void *);
-void pcattach(struct device *, struct device *, void *);
-int pcintr(void *);
-static void screen_restore(int);
-static void screen_blank(void *);
-
-struct cfattach pc_ca = {
-	sizeof(struct pc_softc), pcprobe, pcattach
-};
-
-struct cfdriver pc_cd = {
-	NULL, "pc", DV_TTY
-};
-
-#define	COL		80
-#define	ROW		25
-#define	CHR		2
-
-static unsigned int addr_6845 = MONO_BASE;
-
-void pcinit(void);
-char *sget(void);
-void sput(u_char *, int);
-#ifdef XSERVER
-void pc_xmode_on(void);
-void pc_xmode_off(void);
-#endif
-
-void	pcstart(struct tty *);
-int	pcparam(struct tty *, struct termios *);
-
-int kbd_cmd(u_char, u_char);
-void set_cursor_shape(void);
-#ifdef XSERVER
-void get_cursor_shape(void);
-#endif
-void do_async_update(void *);
-void async_update(void);
-
-static __inline int kbd_wait_output(void);
-static __inline int kbd_wait_input(void);
-static __inline void kbd_flush_input(void);
-static u_char kbc_get8042cmd(void);
-static int kbc_put8042cmd(u_char);
-
-void pccnprobe(struct consdev *);
-void pccninit(struct consdev *);
-void pccnputc(dev_t, char);
-int pccngetc(dev_t);
-void pccnpollc(dev_t, int);
-
-/* wait 7+ us for keyboard controller; ~1.25us per inb() */
-#define	KBD_DELAY \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; } \
-	{ u_char x = inb(0x84); (void) x; }
-
-static __inline int
-kbd_wait_output()
-{
-	u_int i;
-
-	for (i = 100000; i; i--)
-		if ((inb(IO_KBD + KBSTATP) & KBS_IBF) == 0) {
-			KBD_DELAY;
-			return 1;
-		}
-	return 0;
-}
-
-static __inline int
-kbd_wait_input()
-{
-	u_int i;
-
-	for (i = 100000; i; i--)
-		if ((inb(IO_KBD + KBSTATP) & KBS_DIB) != 0) {
-			KBD_DELAY;
-			return 1;
-		}
-	return 0;
-}
-
-static __inline void
-kbd_flush_input()
-{
-	u_int i;
-
-	for (i = 10; i; i--) {
-		if ((inb(IO_KBD + KBSTATP) & KBS_DIB) == 0)
-			return;
-		KBD_DELAY;
-		(void) inb(IO_KBD + KBDATAP);
-	}
-}
-
-#if 1
-/*
- * Get the current command byte.
- */
-static u_char
-kbc_get8042cmd()
-{
-
-	if (!kbd_wait_output())
-		return -1;
-	outb(IO_KBD + KBCMDP, K_RDCMDBYTE);
-	if (!kbd_wait_input())
-		return -1;
-	return inb(IO_KBD + KBDATAP);
-}
-#endif
-
-/*
- * Pass command byte to keyboard controller (8042).
- */
-static int
-kbc_put8042cmd(val)
-	u_char val;
-{
-
-	if (!kbd_wait_output())
-		return 0;
-	outb(IO_KBD + KBCMDP, K_LDCMDBYTE);
-	if (!kbd_wait_output())
-		return 0;
-	outb(IO_KBD + KBOUTP, val);
-	return 1;
-}
-
-/*
- * Pass command to keyboard itself
- */
-int
-kbd_cmd(val, polling)
-	u_char val;
-	u_char polling;
-{
-	u_int retries = 3;
-	register u_int i;
-
-	do {
-		if (!kbd_wait_output())
-			return 0;
-		ack = nak = 0;
-		outb(IO_KBD + KBOUTP, val);
-		if (polling)
-			for (i = 100000; i; i--) {
-				if (inb(IO_KBD + KBSTATP) & KBS_DIB) {
-					register u_char c;
-
-					KBD_DELAY;
-					c = inb(IO_KBD + KBDATAP);
-					if (c == KBR_ACK || c == KBR_ECHO) {
-						ack = 1;
-						return 1;
-					}
-					if (c == KBR_RESEND) {
-						nak = 1;
-						break;
-					}
-#ifdef DIAGNOSTIC
-					printf("kbd_cmd: input char %x lost\n", c);
-#endif
-				}
-			}
-		else
-			for (i = 100000; i; i--) {
-				(void) inb(IO_KBD + KBSTATP);
-				if (ack)
-					return 1;
-				if (nak)
-					break;
-			}
-		if (!nak)
-			return 0;
-	} while (--retries);
-	return 0;
-}
-
-void
-set_cursor_shape()
-{
-	outb(addr_6845, CRTC_CURSTART);
-	outb(addr_6845+1, cursor_shape >> 8);
-	outb(addr_6845, CRTC_CUREND);
-	outb(addr_6845+1, cursor_shape);
-	old_cursor_shape = cursor_shape;
-}
-
-#ifdef XSERVER
-void
-get_cursor_shape()
-{
-	outb(addr_6845, CRTC_CURSTART);
-	cursor_shape = inb(addr_6845+1) << 8;
-	outb(addr_6845, CRTC_CUREND);
-	cursor_shape |= inb(addr_6845+1);
-
-	/*
-	 * real 6845's, as found on, MDA, Hercules or CGA cards, do
-	 * not support reading the cursor shape registers. the 6845
-	 * tri-states it's data bus. This is _normally_ read by the
-	 * cpu as either 0x00 or 0xff.. in which case we just use
-	 * a line cursor.
-	 */
-	if (cursor_shape == 0x0000 || cursor_shape == 0xffff)
-		cursor_shape = 0x0b10;
-	else
-		cursor_shape &= 0x1f1f;
-}
-#endif /* XSERVER */
-
-void
-do_async_update(v)
-	void *v;
-{
-	u_char poll = v ? 1 : 0;
-	int pos;
-	static int old_pos = -1;
-
-	async = 0;
-
-	if (lock_state != old_lock_state) {
-		old_lock_state = lock_state;
-		if (!kbd_cmd(KBC_MODEIND, poll) ||
-		    !kbd_cmd(lock_state, poll)) {
-			printf("pc: timeout updating leds\n");
-			(void) kbd_cmd(KBC_ENABLE, poll);
-		}
-	}
-	if (typematic_rate != old_typematic_rate) {
-		old_typematic_rate = typematic_rate;
-		if (!kbd_cmd(KBC_TYPEMATIC, poll) ||
-		    !kbd_cmd(typematic_rate, poll)) {
-			printf("pc: timeout updating typematic rate\n");
-			(void) kbd_cmd(KBC_ENABLE, poll);
-		}
-	}
-
-#ifdef XSERVER
-	if (pc_xmode > 0)
-		return;
-#endif
-
-	pos = crtat - Crtat;
-	if (pos != old_pos) {
-		register int iobase = addr_6845;
-		outb(iobase, CRTC_CURSORH);
-		outb(iobase+1, pos >> 8);
-		outb(iobase, CRTC_CURSORL);
-		outb(iobase+1, pos);
-		old_pos = pos;
-	}
-	if (cursor_shape != old_cursor_shape)
-		set_cursor_shape();
-}
-
-void
-async_update()
-{
-
-	if (kernel || polling) {
-		if (async)
-			timeout_del(&pccons_aup_tmo);
-		do_async_update((void *)1);
-	} else {
-		if (async)
-			return;
-		async = 1;
-		timeout_add(&pccons_aup_tmo, 1);
-	}
-}
-
-/*
- * these are both bad jokes
- */
-int
-pcprobe(parent, match, aux)
-	struct device *parent;
-	void *match, *aux;
-{
-	struct isa_attach_args *ia = aux;
-	u_int i;
-
-	/* Enable interrupts and keyboard, etc. */
-	if (!kbc_put8042cmd(CMDBYTE)) {
-		printf("pcprobe: command error\n");
-		return 0;
-	}
-
-#if 1
-	/* Flush any garbage. */
-	kbd_flush_input();
-	/* Reset the keyboard. */
-	if (!kbd_cmd(KBC_RESET, 1)) {
-#ifdef DIAGNOSTIC
-		printf("pcprobe: reset error %d\n", 1);
-		/* XXX - this would make some - maybe very
-		   broken - but usable keyboards unusable 
-		goto lose; 
-		*/
-#endif
-	}
-	for (i = 600000; i; i--)
-		if ((inb(IO_KBD + KBSTATP) & KBS_DIB) != 0) {
-			KBD_DELAY;
-			break;
-		}
-	if (i == 0 || inb(IO_KBD + KBDATAP) != KBR_RSTDONE) {
-#ifdef DIAGNOSTIC
-		printf("pcprobe: reset error %d\n", 2);
-		/* XXX - this would make some - maybe very
-		   broken - but usable keyboards unusable 
-		goto lose; 
-		*/
-#endif
-	}
-	/*
-	 * Some keyboards seem to leave a second ack byte after the reset.
-	 * This is kind of stupid, but we account for them anyway by just
-	 * flushing the buffer.
-	 */
-	kbd_flush_input();
-	/* Just to be sure. */
-	if (!kbd_cmd(KBC_ENABLE, 1)) {
-		printf("pcprobe: reset error %d\n", 3);
-		goto lose;
-	}
-
-	/*
-	 * Some keyboard/8042 combinations do not seem to work if the keyboard
-	 * is set to table 1; in fact, it would appear that some keyboards just
-	 * ignore the command altogether.  So by default, we use the AT scan
-	 * codes and have the 8042 translate them.  Unfortunately, this is
-	 * known to not work on some PS/2 machines.  We try desparately to deal
-	 * with this by checking the (lack of a) translate bit in the 8042 and
-	 * attempting to set the keyboard to XT mode.  If this all fails, well,
-	 * tough luck.
-	 *
-	 * XXX It would perhaps be a better choice to just use AT scan codes
-	 * and not bother with this.
-	 */
-	if (kbc_get8042cmd() & KC8_TRANS) {
-		/* The 8042 is translating for us; use AT codes. */
-		if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(2, 1)) {
-			printf("pcprobe: reset error %d\n", 4);
-			goto lose;
-		}
-	} else {
-		/* Stupid 8042; set keyboard to XT codes. */
-		if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(1, 1)) {
-			printf("pcprobe: reset error %d\n", 5);
-			goto lose;
-		}
-	}
-
-lose:
-	/*
-	 * Technically, we should probably fail the probe.  But we'll be nice
-	 * and allow keyboard-less machines to boot with the console.
-	 */
-#endif
-
-	ia->ia_iosize = 16;
-	ia->ia_msize = 0;
-	return 1;
-}
-
-void
-pcattach(parent, self, aux)
-	struct device *parent, *self;
-	void *aux;
-{
-	struct pc_softc *sc = (void *)self;
-	struct isa_attach_args *ia = aux;
-
-	if (crtat == 0)
-		pcinit();
-
-	printf(": %s\n", vs.color ? "color" : "mono");
-	do_async_update((void *)1);
-	screen_restore(0);
-
-	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
-	    IPL_TTY, pcintr, sc, sc->sc_dev.dv_xname);
-
-	/*
-	 * Look for children of the keyboard controller.
-	 * XXX Really should decouple keyboard controller
-	 * from the console code.
-	 */
-	while (config_found(self, ia->ia_ic, NULL) != NULL)	/* XXX */
-		/* will break when no more children */ ;
-}
-
-int
-pcopen(dev, flag, mode, p)
-	dev_t dev;
-	int flag, mode;
-	struct proc *p;
-{
-	struct pc_softc *sc;
-	int unit = PCUNIT(dev);
-	struct tty *tp;
-	int s;
-
-	if (unit >= pc_cd.cd_ndevs)
-		return ENXIO;
-	sc = pc_cd.cd_devs[unit];
-	if (sc == 0)
-		return ENXIO;
-
-	s = spltty();
-	if (!sc->sc_tty) {
-		tp = sc->sc_tty = ttymalloc();
-		tty_attach(tp);
-	} else
-		tp = sc->sc_tty;
-	splx(s);
-
-	tp->t_oproc = pcstart;
-	tp->t_param = pcparam;
-	tp->t_dev = dev;
-	if ((tp->t_state & TS_ISOPEN) == 0) {
-		tp->t_state |= TS_WOPEN;
-		ttychars(tp);
-		tp->t_iflag = TTYDEF_IFLAG;
-		tp->t_oflag = TTYDEF_OFLAG;
-		tp->t_cflag = TTYDEF_CFLAG;
-		tp->t_lflag = TTYDEF_LFLAG;
-		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
-		pcparam(tp, &tp->t_termios);
-		ttsetwater(tp);
-	} else if (tp->t_state&TS_XCLUDE && p->p_ucred->cr_uid != 0)
-		return EBUSY;
-	tp->t_state |= TS_CARR_ON;
-
-	return ((*linesw[tp->t_line].l_open)(dev, tp));
-}
-
-int
-pcclose(dev, flag, mode, p)
-	dev_t dev;
-	int flag, mode;
-	struct proc *p;
-{
-	struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
-	struct tty *tp = sc->sc_tty;
-
-	(*linesw[tp->t_line].l_close)(tp, flag);
-	ttyclose(tp);
-#ifdef notyet /* XXX */
-	ttyfree(tp);
-#endif
-	return(0);
-}
-
-int
-pcread(dev, uio, flag)
-	dev_t dev;
-	struct uio *uio;
-	int flag;
-{
-	struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
-	struct tty *tp = sc->sc_tty;
-
-	return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
-}
-
-int
-pcwrite(dev, uio, flag)
-	dev_t dev;
-	struct uio *uio;
-	int flag;
-{
-	struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
-	struct tty *tp = sc->sc_tty;
-
-	return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
-}
-
-struct tty *
-pctty(dev)
-	dev_t dev;
-{
-	struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
-	struct tty *tp = sc->sc_tty;
-
-	return (tp);
-}
-
-/*
- * Got a console receive interrupt -
- * the console processor wants to give us a character.
- * Catch the character, and see who it goes to.
- */
-int
-pcintr(arg)
-	void *arg;
-{
-	struct pc_softc *sc = arg;
-	register struct tty *tp = sc->sc_tty;
-	u_char *cp;
-
-	if ((inb(IO_KBD + KBSTATP) & KBS_DIB) == 0)
-		return 0;
-	if (polling)
-		return 1;
-	do {
-		cp = sget();
-		if (!tp || (tp->t_state & TS_ISOPEN) == 0)
-			return 1;
-		if (cp)
-			do
-				(*linesw[tp->t_line].l_rint)(*cp++, tp);
-			while (*cp);
-	} while (inb(IO_KBD + KBSTATP) & KBS_DIB);
-	return 1;
-}
-
-int
-pcioctl(dev, cmd, data, flag, p)
-	dev_t dev;
-	u_long cmd;
-	caddr_t data;
-	int flag;
-	struct proc *p;
-{
-	struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
-	struct tty *tp = sc->sc_tty;
-	int error;
-
-	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
-	if (error >= 0)
-		return error;
-	error = ttioctl(tp, cmd, data, flag, p);
-	if (error >= 0)
-		return error;
-
-	switch (cmd) {
-#ifdef XSERVER
-	case CONSOLE_X_MODE_ON:
-		pc_xmode_on();
-		ttyflush(tp, FREAD);
-		return 0;
-	case CONSOLE_X_MODE_OFF:
-		pc_xmode_off();
-		ttyflush(tp, FREAD);
-		return 0;
-	case CONSOLE_X_BELL:
-		/*
-		 * If set, data is a pointer to a length 2 array of
-		 * integers.  data[0] is the pitch in Hz and data[1]
-		 * is the duration in msec.
-		 */
-		if (data)
-			sysbeep(((int *)data)[0],
-				(((int *)data)[1] * hz) / 1000);
-		else
-			sysbeep(BEEP_FREQ, BEEP_TIME);
-		return 0;
-#endif /* XSERVER */
-	case CONSOLE_SET_TYPEMATIC_RATE: {
- 		u_char	rate;
-
- 		if (!data)
-			return EINVAL;
-		rate = *((u_char *)data);
-		/*
-		 * Check that it isn't too big (which would cause it to be
-		 * confused with a command).
-		 */
-		if (rate & 0x80)
-			return EINVAL;
-		typematic_rate = rate;
-		async_update();
-		return 0;
- 	}
-	case CONSOLE_SET_KEYMAP: {
-		pccons_keymap_t *map = (pccons_keymap_t *) data;
-		int i;
-
-		if (!data)
-			return EINVAL;
-		for (i = 0; i < KB_NUM_KEYS; i++)
-			if (map[i].unshift[KB_CODE_SIZE-1] ||
-			    map[i].shift[KB_CODE_SIZE-1] ||
-			    map[i].ctl[KB_CODE_SIZE-1] ||
-			    map[i].altgr[KB_CODE_SIZE-1] ||
-			    map[i].shift_altgr[KB_CODE_SIZE-1])
-				return EINVAL;
-
-		bcopy(data, scan_codes, sizeof(pccons_keymap_t[KB_NUM_KEYS]));
-		return 0;
-	}
-	case CONSOLE_GET_KEYMAP:
-		if (!data)
-			return EINVAL;
-		bcopy(scan_codes, data, sizeof(pccons_keymap_t[KB_NUM_KEYS]));
-		return 0;
-	case CONSOLE_SET_BLANK:
-		pc_blank = *((int *)data);
-		screen_restore(0);
-		return 0;
-	default:
-		return ENOTTY;
-	}
-
-#ifdef DIAGNOSTIC
-	panic("pcioctl: impossible");
-#endif
-}
-
-void
-pcstart(tp)
-	struct tty *tp;
-{
-	struct clist *cl;
-	int s, len;
-	u_char buf[PCBURST];
-
-	s = spltty();
-	if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
-		goto out;
-	tp->t_state |= TS_BUSY;
-	splx(s);
-	/*
-	 * We need to do this outside spl since it could be fairly
-	 * expensive and we don't want our serial ports to overflow.
-	 */
-	cl = &tp->t_outq;
-	len = q_to_b(cl, buf, PCBURST);
-	sput(buf, len);
-	s = spltty();
-	tp->t_state &= ~TS_BUSY;
-	if (cl->c_cc) {
-		tp->t_state |= TS_TIMEOUT;
-		timeout_add(&tp->t_rstrt_to, 1);
-	}
-	if (cl->c_cc <= tp->t_lowat) {
-		if (tp->t_state & TS_ASLEEP) {
-			tp->t_state &= ~TS_ASLEEP;
-			wakeup(cl);
-		}
-		selwakeup(&tp->t_wsel);
-	}
-out:
-	splx(s);
-}
-
-int
-pcstop(tp, flag)
-	struct tty *tp;
-	int flag;
-{
-	return 0;
-}
-
-void
-pccnprobe(cp)
-	struct consdev *cp;
-{
-	int maj;
-
-	/* locate the major number */
-	for (maj = 0; maj < nchrdev; maj++)
-		if (cdevsw[maj].d_open == pcopen)
-			break;
-
-	/* initialize required fields */
-	cp->cn_dev = makedev(maj, 0);
-	cp->cn_pri = CN_INTERNAL;
-}
-
-/* ARGSUSED */
-void
-pccninit(cp)
-	struct consdev *cp;
-{
-
-	/*
-	 * For now, don't screw with it.
-	 */
-	/* crtat = 0; */
-}
-
-/* ARGSUSED */
-void
-pccnputc(dev, c)
-	dev_t dev;
-	char c;
-{
-	u_char oldkernel = kernel;
-
-	kernel = 1;
-	if (c == '\n')
-		sput("\r\n", 2);
-	else
-		sput(&c, 1);
-	kernel = oldkernel;
-}
-
-/* ARGSUSED */
-int
-pccngetc(dev)
-	dev_t dev;
-{
-	register char *cp;
-
-#ifdef XSERVER
-	if (pc_xmode > 0)
-		return 0;
-#endif
-
-	do {
-		/* wait for byte */
-		while ((inb(IO_KBD + KBSTATP) & KBS_DIB) == 0);
-		/* see if it's worthwhile */
-		cp = sget();
-	} while (!cp);
-	if (*cp == '\r')
-		return '\n';
-	return *cp;
-}
-
-void
-pccnpollc(dev, on)
-	dev_t dev;
-	int on;
-{
-
-	polling = on;
-	if (!on) {
-		int unit;
-		struct pc_softc *sc;
-		int s;
-
-		/*
-		 * If disabling polling on a device that's been configured,
-		 * make sure there are no bytes left in the FIFO, holding up
-		 * the interrupt line.  Otherwise we won't get any further
-		 * interrupts.
-		 */
-		unit = PCUNIT(dev);
-		if (pc_cd.cd_ndevs > unit) {
-			sc = pc_cd.cd_devs[unit];
-			if (sc != 0) {
-				s = spltty();
-				pcintr(sc);
-				splx(s);
-			}
-		}
-	}
-}	
-
-/*
- * Set line parameters.
- */
-int
-pcparam(tp, t)
-	struct tty *tp;
-	struct termios *t;
-{
-
-	tp->t_ispeed = t->c_ispeed;
-	tp->t_ospeed = t->c_ospeed;
-	tp->t_cflag = t->c_cflag;
-	return 0;
-}
-
-void
-pcinit()
-{
-	u_short volatile *cp;
-	u_short was;
-	unsigned cursorat;
-
-	timeout_set(&pccons_aup_tmo, do_async_update, NULL);
-	timeout_set(&pccons_blank_tmo, screen_blank, NULL);
-
-	cp = ISA_HOLE_VADDR(CGA_BUF);
-	was = *cp;
-	*cp = (u_short) 0xA55A;
-	if (*cp != 0xA55A) {
-		cp = ISA_HOLE_VADDR(MONO_BUF);
-		addr_6845 = MONO_BASE;
-		vs.color = 0;
-	} else {
-		*cp = was;
-		addr_6845 = CGA_BASE;
-		vs.color = 1;
-	}
-
-	/* Extract cursor location */
-	outb(addr_6845, CRTC_CURSORH);
-	cursorat = inb(addr_6845+1) << 8;
-	outb(addr_6845, CRTC_CURSORL);
-	cursorat |= inb(addr_6845+1);
-
-#ifdef FAT_CURSOR
-	cursor_shape = 0x0012;
-#endif
-
-	Crtat = (u_short *)cp;
-	crtat = (u_short *)(cp + cursorat);
-
-	vs.ncol = COL;
-	vs.nrow = ROW;
-	vs.nchr = COL * ROW;
-	vs.at = FG_LIGHTGREY | BG_BLACK;
-
-	if (vs.color == 0)
-		vs.so_at = FG_BLACK | BG_LIGHTGREY;
-	else
-		vs.so_at = FG_YELLOW | BG_BLACK;
-
-	fillw((vs.at << 8) | ' ', crtat, vs.nchr - cursorat);
-}
-
-#define	wrtchar(c, at) do {\
-	char *cp = (char *)crtat; *cp++ = (c); *cp = (at); crtat++; vs.col++; \
-} while (0)
-
-/* translate ANSI color codes to standard pc ones */
-static char fgansitopc[] = {
-	FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE,
-	FG_MAGENTA, FG_CYAN, FG_LIGHTGREY
-};
-
-static char bgansitopc[] = {
-	BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE,
-	BG_MAGENTA, BG_CYAN, BG_LIGHTGREY
-};
-
-/*
- * iso latin to ibm 437 encoding iso2ibm437[char-128)]
- * characters not available are displayed as a caret
- */
-static u_char iso2ibm437[] = {
-	   4,     4,     4,     4,     4,     4,     4,     4,	/* 128 */
-	   4,     4,     4,     4,     4,     4,     4,     4,	/* 136 */
-	   4,     4,     4,     4,     4,     4,     4,     4,	/* 144 */
-	   4,     4,     4,     4,     4,     4,     4,     4,	/* 152 */
-	0xff,  0xad,  0x9b,  0x9c,     4,  0x9d,     4,  0x15,	/* 160 */
-	   4,     4,  0xa6,  0xae,  0xaa,     4,     4,     4,	/* 168 */
-	0xf8,  0xf1,  0xfd,     4,     4,  0xe6,     4,  0xfa,	/* 176 */
-	   4,     4,  0xa7,  0xaf,  0xac,  0xab,     4,  0xa8,	/* 184 */
-	   4,     4,     4,     4,  0x8e,  0x8f,  0x92,  0x80,	/* 192 */
-	   4,  0x90,     4,     4,     4,     4,     4,     4,	/* 200 */
-	   4,  0xa5,     4,     4,     4,     4,  0x99,     4,	/* 208 */
-	   4,     4,     4,     4,  0x9a,     4,     4,  0xe1,	/* 216 */
-	0x85,  0xa0,  0x83,     4,  0x84,  0x86,  0x91,  0x87,	/* 224 */
-	0x8a,  0x82,  0x88,  0x89,  0x8d,  0xa1,  0x8c,  0x8b,	/* 232 */
-	   4,  0xa4,  0x95,  0xa2,  0x93,     4,  0x94,  0xf6,	/* 240 */
-	   4,  0x97,  0xa3,  0x96,  0x81,     4,     4,  0x98	/* 248 */
-};
-
-static u_short screen_backup[ROW*COL];
-static int screen_saved = 0;
-static u_short *saved_Crtat;
-
-static void
-screen_blank(arg)
-	void *arg;
-{
-	if (! screen_saved) {
-		bcopy(Crtat, screen_backup, ROW*COL*CHR);
-		bzero(Crtat, ROW*COL*CHR);
-		saved_Crtat = Crtat;
-		Crtat = screen_backup;
-		crtat = Crtat + (crtat - saved_Crtat);
-
-#if 0
-		/* write a little blinking square to bootom, left */
-		saved_Crtat[(ROW - 1)*COL] =
-			((FG_BLINK | FG_LIGHTGREY | BG_BLACK) << 8) | 220;
-#endif
-		screen_saved = 1;
-	}
-}
-
-static void
-screen_restore(perm)
-	int perm;
-{
-	timeout_del(&pccons_blank_tmo);
-	if (screen_saved) {
-		Crtat = saved_Crtat;
-		crtat = Crtat + (crtat - screen_backup);
-		bcopy(screen_backup, Crtat, ROW*COL*CHR);
-		screen_saved = 0;
-	}
-	if (!perm && (pc_blank > 0))
-		timeout_add(&pccons_blank_tmo, pc_blank * hz);
-}
-
-/*
- * `pc3' termcap emulation.
- */
-void
-sput(cp, n)
-	u_char *cp;
-	int n;
-{
-	u_char c, scroll = 0;
-
-#ifdef XSERVER
-	if (pc_xmode > 0)
-		return;
-#endif
-
-	if (crtat == 0)
-		pcinit();
-
-	while (n--) {
-		if (!(c = *cp++))
-			continue;
-
-		switch (c) {
-		case 0x1B:
-			if (vs.state >= VSS_ESCAPE) {
-				wrtchar(c, vs.so_at); 
-				vs.state = 0;
-				goto maybe_scroll;
-			} else
-				vs.state = VSS_ESCAPE;
-			break;
-		case 0x9B:	/* CSI */
-			vs.cx = vs.cy = 0;
-			vs.state = VSS_EBRACE;
-			break;
-
-		case '\t': {
-			int inccol = 8 - (vs.col & 7);
-			crtat += inccol;
-			vs.col += inccol;
-		}
-		maybe_scroll:
-			if (vs.col >= COL) {
-				vs.col -= COL;
-				scroll = 1;
-			}
-			break;
-
-		case '\b':
-			if (crtat <= Crtat)
-				break;
-			--crtat;
-			if (--vs.col < 0)
-				vs.col += COL;	/* non-destructive backspace */
-			break;
-
-		case '\r':
-			crtat -= vs.col;
-			vs.col = 0;
-			break;
-
-		case '\n':
-			crtat += vs.ncol;
-			scroll = 1;
-			break;
-
-		default:
-			switch (vs.state) {
-			case 0:
-				if (c == '\a')
-					sysbeep(BEEP_FREQ, BEEP_TIME);
-				else {
-					/*
-					 * If we're outputting multiple printed
-					 * characters, just blast them to the
-					 * screen until we reach the end of the
-					 * buffer or a control character.  This
-					 * saves time by short-circuiting the
-					 * switch.
-					 * If we reach the end of the line, we
-					 * break to do a scroll check.
-					 */
-					for (;;) {
-						if (c & 0x80) 
-							c = iso2ibm437[c&0x7f];
-						if (vs.so)
-							wrtchar(c, vs.so_at);
-						else
-							wrtchar(c, vs.at);
-						if (vs.col >= vs.ncol) {
-							vs.col = 0;
-							scroll = 1;
-							break;
-						}
-						if (!n || (c = *cp) < ' ')
-							break;
-						n--, cp++;
-					}
-				}
-				break;
-			case VSS_ESCAPE:
-				switch (c) {
-					case '[': /* Start ESC [ sequence */
-						vs.cx = vs.cy = 0;
-						vs.state = VSS_EBRACE;
-						break;
-					case 'c': /* Create screen & home */
-						fillw((vs.at << 8) | ' ',
-						    Crtat, vs.nchr);
-						crtat = Crtat;
-						vs.col = 0;
-						vs.state = 0;
-						break;
-					case '7': /* save cursor pos */
-						vs.offset = crtat - Crtat;
-						vs.state = 0;
-						break;
-					case '8': /* restore cursor pos */
-						crtat = Crtat + vs.offset;
-						vs.row = vs.offset / vs.ncol;
-						vs.col = vs.offset % vs.ncol;
-						vs.state = 0;
-						break;
-					default: /* Invalid, clear state */
-						wrtchar(c, vs.so_at); 
-						vs.state = 0;
-						goto maybe_scroll;
-				}
-				break;
-			case VSS_EBRACEQ: {
-				char *col;
-
-				switch (c) {
-				case 'D':
-					break;
-				case 'E':
-					break;
-				case 'F':
-					col = &vs.at;
-do_fg:
-					*col = (*col & 0xf0) | (vs.cx & 0x0f);
-					break;
-				case 'G':
-					col = &vs.at;
-do_bg:
-					*col = (*col & 0x0f) | ((vs.cx & 0x0f) << 4);
-					break;
-				case 'H':
-					col = &vs.so_at;
-					goto do_fg;
-				case 'I':
-					col = &vs.so_at;
-					goto do_bg;
-				case 'J':
-					break;
-				case 'K':
-					break;
-				case 'k':
-					break;
-				case 'l':
-					break;
-				case 'M':
-					break;
-				case 'R':
-					vs.at = vs.save_at;
-					vs.so_at = vs.save_so;
-					break;
-				case 'S':
-					vs.save_at = vs.at;
-					vs.save_so = vs.so_at;
-					break;
-				default:
-					if ((c >= '0') && (c <= '9')) {
-						vs.cx *= 10;
-						vs.cx += c - '0';
-					} else
-						vs.state = 0;
-					break;
-				}
-				vs.state = 0;
-				break;
-			}
-			default: /* VSS_EBRACE or VSS_EPARAM */
-				switch (c) {
-					int pos;
-				case 'm':
-					if (!vs.cx)
-						vs.so = 0;
-					else
-						vs.so = 1;
-					vs.state = 0;
-					break;
-				case 'A': { /* back cx rows */
-					int cx = vs.cx;
-					if (cx <= 0)
-						cx = 1;
-					else
-						cx %= vs.nrow;
-					pos = crtat - Crtat;
-					pos -= vs.ncol * cx;
-					if (pos < 0)
-						pos += vs.nchr;
-					crtat = Crtat + pos;
-					vs.state = 0;
-					break;
-				}
-				case 'B': { /* down cx rows */
-					int cx = vs.cx;
-					if (cx <= 0)
-						cx = 1;
-					else
-						cx %= vs.nrow;
-					pos = crtat - Crtat;
-					pos += vs.ncol * cx;
-					if (pos >= vs.nchr) 
-						pos -= vs.nchr;
-					crtat = Crtat + pos;
-					vs.state = 0;
-					break;
-				}
-				case 'C': { /* right cursor */
-					int cx = vs.cx,
-					    col = vs.col;
-					if (cx <= 0)
-						cx = 1;
-					else
-						cx %= vs.ncol;
-					pos = crtat - Crtat;
-					pos += cx;
-					col += cx;
-					if (col >= vs.ncol) {
-						pos -= vs.ncol;
-						col -= vs.ncol;
-					}
-					vs.col = col;
-					crtat = Crtat + pos;
-					vs.state = 0;
-					break;
-				}
-				case 'D': { /* left cursor */
-					int cx = vs.cx,
-					    col = vs.col;
-					if (cx <= 0)
-						cx = 1;
-					else
-						cx %= vs.ncol;
-					pos = crtat - Crtat;
-					pos -= cx;
-					col -= cx;
-					if (col < 0) {
-						pos += vs.ncol;
-						col += vs.ncol;
-					}
-					vs.col = col;
-					crtat = Crtat + pos;
-					vs.state = 0;
-					break;
-				}
-				case 'J': /* Clear ... */
-					switch (vs.cx) {
-					case 0:
-						/* ... to end of display */
-						fillw((vs.at << 8) | ' ', 
-						    crtat,
-						    Crtat + vs.nchr - crtat);
-						break;
-					case 1:
-						/* ... to next location */
-						fillw((vs.at << 8) | ' ',
-						    Crtat, crtat - Crtat + 1);
-						break;
-					case 2:
-						/* ... whole display */
-						fillw((vs.at << 8) | ' ',
-						    Crtat, vs.nchr);
-						break;
-					}
-					vs.state = 0;
-					break;
-				case 'K': /* Clear line ... */
-					switch (vs.cx) {
-					case 0:
-						/* ... current to EOL */
-						fillw((vs.at << 8) | ' ',
-						    crtat, vs.ncol - vs.col);
-						break;
-					case 1:
-						/* ... beginning to next */
-						fillw((vs.at << 8) | ' ',
-						    crtat - vs.col, vs.col + 1);
-						break;
-					case 2:
-						/* ... entire line */
-						fillw((vs.at << 8) | ' ',
-						    crtat - vs.col, vs.ncol);
-						break;
-					}
-					vs.state = 0;
-					break;
-				case 'f': /* in system V consoles */
-				case 'H': { /* Cursor move */
-					int cx = vs.cx,
-					    cy = vs.cy;
-					if (!cx || !cy) {
-						crtat = Crtat;
-						vs.col = 0;
-					} else {
-						if (cx > vs.nrow)
-							cx = vs.nrow;
-						if (cy > vs.ncol)
-							cy = vs.ncol;
-						crtat = Crtat +
-						    (cx - 1) * vs.ncol + cy - 1;
-						vs.col = cy - 1;
-					}
-					vs.state = 0;
-					break;
-				}
-				case 'M': { /* delete cx rows */
-					u_short *crtAt = crtat - vs.col;
-					int cx = vs.cx,
-					    row = (crtAt - Crtat) / vs.ncol,
-					    nrow = vs.nrow - row;
-					if (cx <= 0)
-						cx = 1;
-					else if (cx > nrow)
-						cx = nrow;
-					if (cx < nrow)
-						bcopy(crtAt + vs.ncol * cx,
-						    crtAt, vs.ncol * (nrow -
-						    cx) * CHR);
-					fillw((vs.at << 8) | ' ',
-					    crtAt + vs.ncol * (nrow - cx),
-					    vs.ncol * cx);
-					vs.state = 0;
-					break;
-				}
-				case 'S': { /* scroll up cx lines */
-					int cx = vs.cx;
-					if (cx <= 0)
-						cx = 1;
-					else if (cx > vs.nrow)
-						cx = vs.nrow;
-					if (cx < vs.nrow)
-						bcopy(Crtat + vs.ncol * cx,
-						    Crtat, vs.ncol * (vs.nrow -
-						    cx) * CHR);
-					fillw((vs.at << 8) | ' ',
-					    Crtat + vs.ncol * (vs.nrow - cx),
-					    vs.ncol * cx);
-#if 0
-					crtat -= vs.ncol * cx; /* XXX */
-#endif
-					vs.state = 0;
-					break;
-				}
-				case 'L': { /* insert cx rows */
-					u_short *crtAt = crtat - vs.col;
-					int cx = vs.cx,
-					    row = (crtAt - Crtat) / vs.ncol,
-					    nrow = vs.nrow - row;
-					if (cx <= 0)
-						cx = 1;
-					else if (cx > nrow)
-						cx = nrow;
-					if (cx < nrow)
-						bcopy(crtAt,
-						    crtAt + vs.ncol * cx,
-						    vs.ncol * (nrow - cx) *
-						    CHR);
-					fillw((vs.at << 8) | ' ', 
-					    crtAt, vs.ncol * cx);
-					vs.state = 0;
-					break;
-				}
-				case 'T': { /* scroll down cx lines */
-					int cx = vs.cx;
-					if (cx <= 0)
-						cx = 1;
-					else if (cx > vs.nrow)
-						cx = vs.nrow;
-					if (cx < vs.nrow)
-						bcopy(Crtat,
-						    Crtat + vs.ncol * cx,
-						    vs.ncol * (vs.nrow - cx) *
-						    CHR);
-					fillw((vs.at << 8) | ' ', 
-					    Crtat, vs.ncol * cx);
-#if 0
-					crtat += vs.ncol * cx; /* XXX */
-#endif
-					vs.state = 0;
-					break;
-				}
-				case ';': /* Switch params in cursor def */
-					vs.state = VSS_EPARAM;
-					break;
-				case 'r':
-					vs.so_at = (vs.cx & FG_MASK) |
-					    ((vs.cy << 4) & BG_MASK);
-					vs.state = 0;
-					break;
-				case 's': /* save cursor pos */
-					vs.offset = crtat - Crtat;
-					vs.state = 0;
-					break;
-				case 'u': /* restore cursor pos */
-					crtat = Crtat + vs.offset;
-					vs.row = vs.offset / vs.ncol;
-					vs.col = vs.offset % vs.ncol;
-					vs.state = 0;
-					break;
-				case 'x': /* set attributes */
-					switch (vs.cx) {
-					case 0:
-						vs.at = FG_LIGHTGREY | BG_BLACK;
-						break;
-					case 1:
-						/* ansi background */
-						if (!vs.color)
-							break;
-						vs.at &= FG_MASK;
-						vs.at |= bgansitopc[vs.cy & 7];
-						break;
-					case 2:
-						/* ansi foreground */
-						if (!vs.color)
-							break;
-						vs.at &= BG_MASK;
-						vs.at |= fgansitopc[vs.cy & 7];
-						break;
-					case 3:
-						/* pc text attribute */
-						if (vs.state >= VSS_EPARAM)
-							vs.at = vs.cy;
-						break;
-					}
-					vs.state = 0;
-					break;
-				case '_': /* set cursor type */
-					if (vs.cx == 2)
-						vs.cx = 14;
-					else if (vs.cx)
-						vs.cx = 1;
-					else
-						vs.cx = 12;
-					cursor_shape = (vs.cx << 8) | 13;
-					set_cursor_shape();
-					break;
-				case '=':
-					vs.state = VSS_EBRACEQ;
-					break;
-					
-				default: /* Only numbers valid here */
-					if ((c >= '0') && (c <= '9')) {
-						if (vs.state >= VSS_EPARAM) {
-							vs.cy *= 10;
-							vs.cy += c - '0';
-						} else {
-							vs.cx *= 10;
-							vs.cx += c - '0';
-						}
-					} else
-						vs.state = 0;
-					break;
-				}
-				break;
-			}
-		}
-		if (scroll) {
-			scroll = 0;
-			/* scroll check */
-			if (crtat >= Crtat + vs.nchr) {
-				if (!kernel) {
-					int s = spltty();
-					if (lock_state & KB_SCROLL)
-						tsleep(&lock_state,
-						    PUSER, "pcputc", 0);
-					splx(s);
-				}
-				bcopy(Crtat + vs.ncol, Crtat,
-				    (vs.nchr - vs.ncol) * CHR);
-				fillw((vs.at << 8) | ' ',
-				    Crtat + vs.nchr - vs.ncol,
-				    vs.ncol);
-				crtat -= vs.ncol;
-			}
-		}
-	}
-	async_update();
-}
-
-/* the unshifted code for KB_SHIFT keys is used by X to distinguish between 
-   left and right shift when reading the keyboard map */
-static pccons_keymap_t	scan_codes[KB_NUM_KEYS] = {
-/*  type       unshift   shift     control   altgr     shift_altgr scancode */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 0 unused */
-  { KB_ASCII,  "\033",   "\033",   "\033",   "",       "", }, /* 1 ESCape */
-  { KB_ASCII,  "1",      "!",      "!",      "",       "", }, /* 2 1 */
-  { KB_ASCII,  "2",      "@",      "\000",   "",       "", }, /* 3 2 */
-  { KB_ASCII,  "3",      "#",      "#",      "",       "", }, /* 4 3 */
-  { KB_ASCII,  "4",      "$",      "$",      "",       "", }, /* 5 4 */
-  { KB_ASCII,  "5",      "%",      "%",      "",       "", }, /* 6 5 */
-  { KB_ASCII,  "6",      "^",      "\036",   "",       "", }, /* 7 6 */
-  { KB_ASCII,  "7",      "&",      "&",      "",       "", }, /* 8 7 */
-  { KB_ASCII,  "8",      "*",      "\010",   "",       "", }, /* 9 8 */
-  { KB_ASCII,  "9",      "(",      "(",      "",       "", }, /* 10 9 */
-  { KB_ASCII,  "0",      ")",      ")",      "",       "", }, /* 11 0 */
-  { KB_ASCII,  "-",      "_",      "\037",   "",       "", }, /* 12 - */
-  { KB_ASCII,  "=",      "+",      "+",      "",       "", }, /* 13 = */
-  { KB_ASCII,  "\177",   "\177",   "\010",   "",       "", }, /* 14 backspace */
-  { KB_ASCII,  "\t",     "\t",     "\t",     "",       "", }, /* 15 tab */
-  { KB_ASCII,  "q",      "Q",      "\021",   "",       "", }, /* 16 q */
-  { KB_ASCII,  "w",      "W",      "\027",   "",       "", }, /* 17 w */
-  { KB_ASCII,  "e",      "E",      "\005",   "",       "", }, /* 18 e */
-  { KB_ASCII,  "r",      "R",      "\022",   "",       "", }, /* 19 r */
-  { KB_ASCII,  "t",      "T",      "\024",   "",       "", }, /* 20 t */
-  { KB_ASCII,  "y",      "Y",      "\031",   "",       "", }, /* 21 y */
-  { KB_ASCII,  "u",      "U",      "\025",   "",       "", }, /* 22 u */
-  { KB_ASCII,  "i",      "I",      "\011",   "",       "", }, /* 23 i */
-  { KB_ASCII,  "o",      "O",      "\017",   "",       "", }, /* 24 o */
-  { KB_ASCII,  "p",      "P",      "\020",   "",       "", }, /* 25 p */
-  { KB_ASCII,  "[",      "{",      "\033",   "",       "", }, /* 26 [ */
-  { KB_ASCII,  "]",      "}",      "\035",   "",       "", }, /* 27 ] */
-  { KB_ASCII,  "\r",     "\r",     "\n",     "",       "", }, /* 28 return */
-  { KB_CTL,    "",       "",       "",       "",       "", }, /* 29 control */
-  { KB_ASCII,  "a",      "A",      "\001",   "",       "", }, /* 30 a */
-  { KB_ASCII,  "s",      "S",      "\023",   "",       "", }, /* 31 s */
-  { KB_ASCII,  "d",      "D",      "\004",   "",       "", }, /* 32 d */
-  { KB_ASCII,  "f",      "F",      "\006",   "",       "", }, /* 33 f */
-  { KB_ASCII,  "g",      "G",      "\007",   "",       "", }, /* 34 g */
-  { KB_ASCII,  "h",      "H",      "\010",   "",       "", }, /* 35 h */
-  { KB_ASCII,  "j",      "J",      "\n",     "",       "", }, /* 36 j */
-  { KB_ASCII,  "k",      "K",      "\013",   "",       "", }, /* 37 k */
-  { KB_ASCII,  "l",      "L",      "\014",   "",       "", }, /* 38 l */
-  { KB_ASCII,  ";",      ":",      ";",      "",       "", }, /* 39 ; */
-  { KB_ASCII,  "'",      "\"",     "'",      "",       "", }, /* 40 ' */
-  { KB_ASCII,  "`",      "~",      "`",      "",       "", }, /* 41 ` */
-  { KB_SHIFT,  "\001",   "",       "",       "",       "", }, /* 42 shift */
-  { KB_ASCII,  "\\",     "|",      "\034",   "",       "", }, /* 43 \ */
-  { KB_ASCII,  "z",      "Z",      "\032",   "",       "", }, /* 44 z */
-  { KB_ASCII,  "x",      "X",      "\030",   "",       "", }, /* 45 x */
-  { KB_ASCII,  "c",      "C",      "\003",   "",       "", }, /* 46 c */
-  { KB_ASCII,  "v",      "V",      "\026",   "",       "", }, /* 47 v */
-  { KB_ASCII,  "b",      "B",      "\002",   "",       "", }, /* 48 b */
-  { KB_ASCII,  "n",      "N",      "\016",   "",       "", }, /* 49 n */
-  { KB_ASCII,  "m",      "M",      "\r",     "",       "", }, /* 50 m */
-  { KB_ASCII,  ",",      "<",      "<",      "",       "", }, /* 51 , */
-  { KB_ASCII,  ".",      ">",      ">",      "",       "", }, /* 52 . */
-  { KB_ASCII,  "/",      "?",      "\037",   "",       "", }, /* 53 / */
-  { KB_SHIFT,  "\002",   "",       "",       "",       "", }, /* 54 shift */
-  { KB_KP,     "*",      "*",      "*",      "",       "", }, /* 55 kp * */
-  { KB_ALT,    "",       "",       "",       "",       "", }, /* 56 alt */
-  { KB_ASCII,  " ",      " ",      "\000",   "",       "", }, /* 57 space */
-  { KB_CAPS,   "",       "",       "",       "",       "", }, /* 58 caps */
-  { KB_FUNC,   "\033[M", "\033[Y", "\033[k", "",       "", }, /* 59 f1 */
-  { KB_FUNC,   "\033[N", "\033[Z", "\033[l", "",       "", }, /* 60 f2 */
-  { KB_FUNC,   "\033[O", "\033[a", "\033[m", "",       "", }, /* 61 f3 */
-  { KB_FUNC,   "\033[P", "\033[b", "\033[n", "",       "", }, /* 62 f4 */
-  { KB_FUNC,   "\033[Q", "\033[c", "\033[o", "",       "", }, /* 63 f5 */
-  { KB_FUNC,   "\033[R", "\033[d", "\033[p", "",       "", }, /* 64 f6 */
-  { KB_FUNC,   "\033[S", "\033[e", "\033[q", "",       "", }, /* 65 f7 */
-  { KB_FUNC,   "\033[T", "\033[f", "\033[r", "",       "", }, /* 66 f8 */
-  { KB_FUNC,   "\033[U", "\033[g", "\033[s", "",       "", }, /* 67 f9 */
-  { KB_FUNC,   "\033[V", "\033[h", "\033[t", "",       "", }, /* 68 f10 */
-  { KB_NUM,    "",       "",       "",       "",       "", }, /* 69 num lock */
-  { KB_SCROLL, "",       "",       "",       "",       "", }, /* 70 scroll lock */
-  { KB_KP,     "7",      "\033[H", "7",      "",       "", }, /* 71 kp 7 */
-  { KB_KP,     "8",      "\033[A", "8",      "",       "", }, /* 72 kp 8 */
-  { KB_KP,     "9",      "\033[I", "9",      "",       "", }, /* 73 kp 9 */
-  { KB_KP,     "-",      "-",      "-",      "",       "", }, /* 74 kp - */
-  { KB_KP,     "4",      "\033[D", "4",      "",       "", }, /* 75 kp 4 */
-  { KB_KP,     "5",      "\033[E", "5",      "",       "", }, /* 76 kp 5 */
-  { KB_KP,     "6",      "\033[C", "6",      "",       "", }, /* 77 kp 6 */
-  { KB_KP,     "+",      "+",      "+",      "",       "", }, /* 78 kp + */
-  { KB_KP,     "1",      "\033[F", "1",      "",       "", }, /* 79 kp 1 */
-  { KB_KP,     "2",      "\033[B", "2",      "",       "", }, /* 80 kp 2 */
-  { KB_KP,     "3",      "\033[G", "3",      "",       "", }, /* 81 kp 3 */
-  { KB_KP,     "0",      "\033[L", "0",      "",       "", }, /* 82 kp 0 */
-  { KB_KP,     ",",      "\177",   ",",      "",       "", }, /* 83 kp , */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 84 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 85 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 86 0 */
-  { KB_FUNC,   "\033[W", "\033[i", "\033[u", "",       "", }, /* 87 f11 */
-  { KB_FUNC,   "\033[X", "\033[j", "\033[v", "",       "", }, /* 88 f12 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 89 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 90 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 91 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 92 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 93 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 94 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 95 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 96 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 97 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 98 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 99 0 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 100 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 101 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 102 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 103 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 104 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 105 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 106 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 107 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 108 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 109 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 110 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 111 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 112 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 113 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 114 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 115 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 116 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 117 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 118 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 119 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 120 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 121 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 122 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 123 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 124 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 125 */
-  { KB_NONE,   "",       "",       "",       "",       "", }, /* 126 */
-  { KB_NONE,   "",       "",       "",       "",       ""  }, /* 127 */
-};
-
-/*
- * Get characters from the keyboard.  If none are present, return NULL.
- */
-char *
-sget()
-{
-	u_char dt;
-	static u_char extended = 0, shift_state = 0;
-	static u_char capchar[2];
-
-top:
-	KBD_DELAY;
-	dt = inb(IO_KBD + KBDATAP);
-
-	switch (dt) {
-	case KBR_ACK:
-		ack = 1;
-		goto loop;
-	case KBR_RESEND:
-		nak = 1;
-		goto loop;
-	}
-
-#ifdef XSERVER
-	if (pc_xmode > 0) {
-#if defined(DDB) && defined(XSERVER_DDB)
-		/* F12 enters the debugger while in X mode */
-		if (dt == 88)
-			if (db_console)
-				Debugger();
-#endif
-		capchar[0] = dt;
-		capchar[1] = 0;
-		/*
-		 * Check for locking keys.
-		 *
-		 * XXX Setting the LEDs this way is a bit bogus.  What if the
-		 * keyboard has been remapped in X?
-		 */
-		switch (scan_codes[dt & 0x7f].type) {
-		case KB_NUM:
-			if (dt & 0x80) {
-				shift_state &= ~KB_NUM;
-				break;
-			}
-			if (shift_state & KB_NUM)
-				break;
-			shift_state |= KB_NUM;
-			lock_state ^= KB_NUM;
-			async_update();
-			break;
-		case KB_CAPS:
-			if (dt & 0x80) {
-				shift_state &= ~KB_CAPS;
-				break;
-			}
-			if (shift_state & KB_CAPS)
-				break;
-			shift_state |= KB_CAPS;
-			lock_state ^= KB_CAPS;
-			async_update();
-			break;
-		case KB_SCROLL:
-			if (dt & 0x80) {
-				shift_state &= ~KB_SCROLL;
-				break;
-			}
-			if (shift_state & KB_SCROLL)
-				break;
-			shift_state |= KB_SCROLL;
-			lock_state ^= KB_SCROLL;
-			if ((lock_state & KB_SCROLL) == 0)
-				wakeup(&lock_state);
-			async_update();
-			break;
-		}
-		return capchar;
-	}
-#endif /* XSERVER */
-
-	switch (dt) {
-	case KBR_EXTENDED:
-		extended = 1;
-		goto loop;
-	}
-
-#ifdef DDB
-	/*
-	 * Check for cntl-alt-esc.
-	 */
-	if (dt == 1 &&
-	    (shift_state & (KB_CTL | KB_ALT)) == (KB_CTL | KB_ALT)) {
-		screen_restore(1);
-		if (db_console)
-			Debugger();
-		dt |= 0x80;	/* discard esc (ddb discarded ctl-alt) */
-	}
-#endif
-
-	screen_restore(0);
-
-	/*
-	 * Check for make/break.
-	 */
-	if (dt & 0x80) {
-		/*
-		 * break
-		 */
-		dt &= 0x7f;
-		switch (scan_codes[dt].type) {
-		case KB_NUM:
-			shift_state &= ~KB_NUM;
-			break;
-		case KB_CAPS:
-			shift_state &= ~KB_CAPS;
-			break;
-		case KB_SCROLL:
-			shift_state &= ~KB_SCROLL;
-			break;
-		case KB_SHIFT:
-			shift_state &= ~KB_SHIFT;
-			break;
-		case KB_ALT:
-			if (extended)
-				shift_state &= ~KB_ALTGR;
-			else
-				shift_state &= ~KB_ALT;
-			break;
-		case KB_CTL:
-			shift_state &= ~KB_CTL;
-			break;
-		}
-	} else {
-		/*
-		 * make
-		 */
-		switch (scan_codes[dt].type) {
-		/*
-		 * locking keys
-		 */
-		case KB_NUM:
-			if (shift_state & KB_NUM)
-				break;
-			shift_state |= KB_NUM;
-			lock_state ^= KB_NUM;
-			async_update();
-			break;
-		case KB_CAPS:
-			if (shift_state & KB_CAPS)
-				break;
-			shift_state |= KB_CAPS;
-			lock_state ^= KB_CAPS;
-			async_update();
-			break;
-		case KB_SCROLL:
-			if (shift_state & KB_SCROLL)
-				break;
-			shift_state |= KB_SCROLL;
-			lock_state ^= KB_SCROLL;
-			if ((lock_state & KB_SCROLL) == 0)
-				wakeup(&lock_state);
-			async_update();
-			break;
-		/*
-		 * non-locking keys
-		 */
-		case KB_SHIFT:
-			shift_state |= KB_SHIFT;
-			break;
-		case KB_ALT:
-			if (extended)
-				shift_state |= KB_ALTGR;
-			else
-				shift_state |= KB_ALT;
-			break;
-		case KB_CTL:
-			shift_state |= KB_CTL;
-			break;
-		case KB_ASCII:
-			/* control has highest priority */
-			if (shift_state & KB_CTL)
-				capchar[0] = scan_codes[dt].ctl[0];
-			else if (shift_state & KB_ALTGR) {
-				if (shift_state & KB_SHIFT)
-					capchar[0] = scan_codes[dt].shift_altgr[0];
-				else
-					capchar[0] = scan_codes[dt].altgr[0];
-			} else {
-				if (shift_state & KB_SHIFT)
-					capchar[0] = scan_codes[dt].shift[0];
-				else
-					capchar[0] = scan_codes[dt].unshift[0];
-			}
-			if ((lock_state & KB_CAPS) && capchar[0] >= 'a' &&
-			    capchar[0] <= 'z') {
-				capchar[0] -= ('a' - 'A');
-			}
-			capchar[0] |= (shift_state & KB_ALT);
-			extended = 0;
-			return capchar;
-		case KB_NONE:
-			break;
-		case KB_FUNC: {
-			char *more_chars;
-			if (shift_state & KB_SHIFT)
-				more_chars = scan_codes[dt].shift;
-			else if (shift_state & KB_CTL)
-				more_chars = scan_codes[dt].ctl;
-			else
-				more_chars = scan_codes[dt].unshift;
-			extended = 0;
-			return more_chars;
-		}
-		case KB_KP: {
-			char *more_chars;
-			if (shift_state & (KB_SHIFT | KB_CTL) ||
-			    (lock_state & KB_NUM) == 0 || extended)
-				more_chars = scan_codes[dt].shift;
-			else
-				more_chars = scan_codes[dt].unshift;
-			extended = 0;
-			return more_chars;
-		}
-		}
-	}
-
-	extended = 0;
-loop:
-	if ((inb(IO_KBD + KBSTATP) & KBS_DIB) == 0)
-		return 0;
-	goto top;
-}
-
-paddr_t
-pcmmap(dev, offset, nprot)
-	dev_t dev;
-	off_t offset;
-	int nprot;
-{
-
-	if ((u_int)offset > 0x20000)
-		return -1;
-	return i386_btop(0xa0000 + offset);
-}
-
-#ifdef XSERVER
-void
-pc_xmode_on()
-{
-
-	if (pc_xmode)
-		return;
-	pc_xmode = 1;
-	screen_restore(1);
-
-#ifdef XFREE86_BUG_COMPAT
-	/* If still unchanged, get current shape. */
-	if (cursor_shape == 0xffff)
-		get_cursor_shape();
-#endif
-}
-
-void
-pc_xmode_off()
-{
-	struct trapframe *fp;
-
-	if (pc_xmode == 0)
-		return;
-	pc_xmode = 0;
-
-#ifdef XFREE86_BUG_COMPAT
-	/* XXX It would be hard to justify why the X server doesn't do this. */
-	set_cursor_shape();
-#endif
-	async_update();
-	screen_restore(0);
-
-	fp = curproc->p_md.md_regs;
-	if (securelevel <= 0)
-		fp->tf_eflags &= ~PSL_IOPL;
-}
-#endif /* XSERVER */