syscons.c revision 298955 
1/*-
2 * Copyright (c) 1992-1998 S��ren Schmidt
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The DragonFly Project
6 * by Sascha Wildner <saw@online.de>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer,
13 *    without modification, immediately at the beginning of the file.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/dev/syscons/syscons.c 298955 2016-05-03 03:41:25Z pfg $");
34
35#include "opt_compat.h"
36#include "opt_syscons.h"
37#include "opt_splash.h"
38#include "opt_ddb.h"
39
40#include <sys/param.h>
41#include <sys/systm.h>
42#include <sys/bus.h>
43#include <sys/conf.h>
44#include <sys/cons.h>
45#include <sys/consio.h>
46#include <sys/kdb.h>
47#include <sys/eventhandler.h>
48#include <sys/fbio.h>
49#include <sys/kbio.h>
50#include <sys/kernel.h>
51#include <sys/lock.h>
52#include <sys/malloc.h>
53#include <sys/mutex.h>
54#include <sys/priv.h>
55#include <sys/proc.h>
56#include <sys/random.h>
57#include <sys/reboot.h>
58#include <sys/serial.h>
59#include <sys/signalvar.h>
60#include <sys/sysctl.h>
61#include <sys/tty.h>
62#include <sys/power.h>
63
64#include <machine/clock.h>
65#if defined(__arm__) || defined(__mips__) || \
66	defined(__powerpc__) || defined(__sparc64__)
67#include <machine/sc_machdep.h>
68#else
69#include <machine/pc/display.h>
70#endif
71#if defined( __i386__) || defined(__amd64__)
72#include <machine/psl.h>
73#include <machine/frame.h>
74#endif
75#include <machine/stdarg.h>
76
77#include <dev/kbd/kbdreg.h>
78#include <dev/fb/fbreg.h>
79#include <dev/fb/splashreg.h>
80#include <dev/syscons/syscons.h>
81
82#define COLD 0
83#define WARM 1
84
85#define DEFAULT_BLANKTIME	(5*60)		/* 5 minutes */
86#define MAX_BLANKTIME		(7*24*60*60)	/* 7 days!? */
87
88#define KEYCODE_BS		0x0e		/* "<-- Backspace" key, XXX */
89
90/* NULL-safe version of "tty_opened()" */
91#define	tty_opened_ns(tp)	((tp) != NULL && tty_opened(tp))
92
93typedef struct default_attr {
94	int		std_color;		/* normal hardware color */
95	int		rev_color;		/* reverse hardware color */
96} default_attr;
97
98static default_attr user_default = {
99    SC_NORM_ATTR,
100    SC_NORM_REV_ATTR,
101};
102
103static	int		sc_console_unit = -1;
104static	int		sc_saver_keyb_only = 1;
105static  scr_stat    	*sc_console;
106static  struct consdev	*sc_consptr;
107static	scr_stat	main_console;
108static	struct tty 	*main_devs[MAXCONS];
109
110static  char        	init_done = COLD;
111static	int		shutdown_in_progress = FALSE;
112static	int		suspend_in_progress = FALSE;
113static	char		sc_malloc = FALSE;
114
115static	int		saver_mode = CONS_NO_SAVER; /* LKM/user saver */
116static	int		run_scrn_saver = FALSE;	/* should run the saver? */
117static	int		enable_bell = TRUE; /* enable beeper */
118
119#ifndef SC_DISABLE_REBOOT
120static  int		enable_reboot = TRUE; /* enable keyboard reboot */
121#endif
122
123#ifndef SC_DISABLE_KDBKEY
124static  int		enable_kdbkey = TRUE; /* enable keyboard debug */
125#endif
126
127static	long        	scrn_blank_time = 0;    /* screen saver timeout value */
128#ifdef DEV_SPLASH
129static	int     	scrn_blanked;		/* # of blanked screen */
130static	int		sticky_splash = FALSE;
131
132static	void		none_saver(sc_softc_t *sc, int blank) { }
133static	void		(*current_saver)(sc_softc_t *, int) = none_saver;
134#endif
135
136#ifdef SC_NO_SUSPEND_VTYSWITCH
137static	int		sc_no_suspend_vtswitch = 1;
138#else
139static	int		sc_no_suspend_vtswitch = 0;
140#endif
141static	int		sc_susp_scr;
142
143static SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD, 0, "syscons");
144static SYSCTL_NODE(_hw_syscons, OID_AUTO, saver, CTLFLAG_RD, 0, "saver");
145SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
146    &sc_saver_keyb_only, 0, "screen saver interrupted by input only");
147SYSCTL_INT(_hw_syscons, OID_AUTO, bell, CTLFLAG_RW, &enable_bell,
148    0, "enable bell");
149#ifndef SC_DISABLE_REBOOT
150SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_reboot, CTLFLAG_RW|CTLFLAG_SECURE, &enable_reboot,
151    0, "enable keyboard reboot");
152#endif
153#ifndef SC_DISABLE_KDBKEY
154SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_debug, CTLFLAG_RW|CTLFLAG_SECURE, &enable_kdbkey,
155    0, "enable keyboard debug");
156#endif
157SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RWTUN,
158    &sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
159#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
160#include "font.h"
161#endif
162
163	tsw_ioctl_t	*sc_user_ioctl;
164
165static	bios_values_t	bios_value;
166
167static	int		enable_panic_key;
168SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
169	   0, "Enable panic via keypress specified in kbdmap(5)");
170
171#define SC_CONSOLECTL	255
172
173#define VTY_WCHAN(sc, vty) (&SC_DEV(sc, vty))
174
175static	int		debugger;
176
177/* prototypes */
178static int sc_allocate_keyboard(sc_softc_t *sc, int unit);
179static int scvidprobe(int unit, int flags, int cons);
180static int sckbdprobe(int unit, int flags, int cons);
181static void scmeminit(void *arg);
182static int scdevtounit(struct tty *tp);
183static kbd_callback_func_t sckbdevent;
184static void scinit(int unit, int flags);
185static scr_stat *sc_get_stat(struct tty *tp);
186static void scterm(int unit, int flags);
187static void scshutdown(void *, int);
188static void scsuspend(void *);
189static void scresume(void *);
190static u_int scgetc(sc_softc_t *sc, u_int flags);
191static void sc_puts(scr_stat *scp, u_char *buf, int len, int kernel);
192#define SCGETC_CN	1
193#define SCGETC_NONBLOCK	2
194static void sccnupdate(scr_stat *scp);
195static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
196static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
197static timeout_t scrn_timer;
198static int and_region(int *s1, int *e1, int s2, int e2);
199static void scrn_update(scr_stat *scp, int show_cursor);
200
201#ifdef DEV_SPLASH
202static int scsplash_callback(int event, void *arg);
203static void scsplash_saver(sc_softc_t *sc, int show);
204static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
205static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
206static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border);
207static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
208static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
209static int wait_scrn_saver_stop(sc_softc_t *sc);
210#define scsplash_stick(stick)		(sticky_splash = (stick))
211#else /* !DEV_SPLASH */
212#define scsplash_stick(stick)
213#endif /* DEV_SPLASH */
214
215static int do_switch_scr(sc_softc_t *sc, int s);
216static int vt_proc_alive(scr_stat *scp);
217static int signal_vt_rel(scr_stat *scp);
218static int signal_vt_acq(scr_stat *scp);
219static int finish_vt_rel(scr_stat *scp, int release, int *s);
220static int finish_vt_acq(scr_stat *scp);
221static void exchange_scr(sc_softc_t *sc);
222static void update_cursor_image(scr_stat *scp);
223static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
224static void update_font(scr_stat *);
225static int save_kbd_state(scr_stat *scp);
226static int update_kbd_state(scr_stat *scp, int state, int mask);
227static int update_kbd_leds(scr_stat *scp, int which);
228static timeout_t blink_screen;
229static struct tty *sc_alloc_tty(int, int);
230
231static cn_probe_t	sc_cnprobe;
232static cn_init_t	sc_cninit;
233static cn_term_t	sc_cnterm;
234static cn_getc_t	sc_cngetc;
235static cn_putc_t	sc_cnputc;
236static cn_grab_t	sc_cngrab;
237static cn_ungrab_t	sc_cnungrab;
238
239CONSOLE_DRIVER(sc);
240
241static	tsw_open_t	sctty_open;
242static	tsw_close_t	sctty_close;
243static	tsw_outwakeup_t	sctty_outwakeup;
244static	tsw_ioctl_t	sctty_ioctl;
245static	tsw_mmap_t	sctty_mmap;
246
247static struct ttydevsw sc_ttydevsw = {
248	.tsw_open	= sctty_open,
249	.tsw_close	= sctty_close,
250	.tsw_outwakeup	= sctty_outwakeup,
251	.tsw_ioctl	= sctty_ioctl,
252	.tsw_mmap	= sctty_mmap,
253};
254
255static d_ioctl_t	consolectl_ioctl;
256static d_close_t	consolectl_close;
257
258static struct cdevsw consolectl_devsw = {
259	.d_version	= D_VERSION,
260	.d_flags	= D_NEEDGIANT | D_TRACKCLOSE,
261	.d_ioctl	= consolectl_ioctl,
262	.d_close	= consolectl_close,
263	.d_name		= "consolectl",
264};
265
266int
267sc_probe_unit(int unit, int flags)
268{
269    if (!vty_enabled(VTY_SC))
270        return ENXIO;
271    if (!scvidprobe(unit, flags, FALSE)) {
272	if (bootverbose)
273	    printf("%s%d: no video adapter found.\n", SC_DRIVER_NAME, unit);
274	return ENXIO;
275    }
276
277    /* syscons will be attached even when there is no keyboard */
278    sckbdprobe(unit, flags, FALSE);
279
280    return 0;
281}
282
283/* probe video adapters, return TRUE if found */
284static int
285scvidprobe(int unit, int flags, int cons)
286{
287    /*
288     * Access the video adapter driver through the back door!
289     * Video adapter drivers need to be configured before syscons.
290     * However, when syscons is being probed as the low-level console,
291     * they have not been initialized yet.  We force them to initialize
292     * themselves here. XXX
293     */
294    vid_configure(cons ? VIO_PROBE_ONLY : 0);
295
296    return (vid_find_adapter("*", unit) >= 0);
297}
298
299/* probe the keyboard, return TRUE if found */
300static int
301sckbdprobe(int unit, int flags, int cons)
302{
303    /* access the keyboard driver through the backdoor! */
304    kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
305
306    return (kbd_find_keyboard("*", unit) >= 0);
307}
308
309static char
310*adapter_name(video_adapter_t *adp)
311{
312    static struct {
313	int type;
314	char *name[2];
315    } names[] = {
316	{ KD_MONO,	{ "MDA",	"MDA" } },
317	{ KD_HERCULES,	{ "Hercules",	"Hercules" } },
318	{ KD_CGA,	{ "CGA",	"CGA" } },
319	{ KD_EGA,	{ "EGA",	"EGA (mono)" } },
320	{ KD_VGA,	{ "VGA",	"VGA (mono)" } },
321	{ KD_PC98,	{ "PC-98x1",	"PC-98x1" } },
322	{ KD_TGA,	{ "TGA",	"TGA" } },
323	{ -1,		{ "Unknown",	"Unknown" } },
324    };
325    int i;
326
327    for (i = 0; names[i].type != -1; ++i)
328	if (names[i].type == adp->va_type)
329	    break;
330    return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
331}
332
333static void
334sctty_outwakeup(struct tty *tp)
335{
336    size_t len;
337    u_char buf[PCBURST];
338    scr_stat *scp = sc_get_stat(tp);
339
340    if (scp->status & SLKED ||
341	(scp == scp->sc->cur_scp && scp->sc->blink_in_progress))
342	return;
343
344    for (;;) {
345	len = ttydisc_getc(tp, buf, sizeof buf);
346	if (len == 0)
347	    break;
348	sc_puts(scp, buf, len, 0);
349    }
350}
351
352static struct tty *
353sc_alloc_tty(int index, int devnum)
354{
355	struct sc_ttysoftc *stc;
356	struct tty *tp;
357
358	/* Allocate TTY object and softc to store unit number. */
359	stc = malloc(sizeof(struct sc_ttysoftc), M_DEVBUF, M_WAITOK);
360	stc->st_index = index;
361	stc->st_stat = NULL;
362	tp = tty_alloc_mutex(&sc_ttydevsw, stc, &Giant);
363
364	/* Create device node. */
365	tty_makedev(tp, NULL, "v%r", devnum);
366
367	return (tp);
368}
369
370#ifdef SC_PIXEL_MODE
371static void
372sc_set_vesa_mode(scr_stat *scp, sc_softc_t *sc, int unit)
373{
374	video_info_t info;
375	u_char *font;
376	int depth;
377	int fontsize;
378	int i;
379	int vmode;
380
381	vmode = 0;
382	(void)resource_int_value("sc", unit, "vesa_mode", &vmode);
383	if (vmode < M_VESA_BASE || vmode > M_VESA_MODE_MAX ||
384	    vidd_get_info(sc->adp, vmode, &info) != 0 ||
385	    !sc_support_pixel_mode(&info))
386		vmode = 0;
387
388	/*
389	 * If the mode is unset or unsupported, search for an available
390	 * 800x600 graphics mode with the highest color depth.
391	 */
392	if (vmode == 0) {
393		for (depth = 0, i = M_VESA_BASE; i <= M_VESA_MODE_MAX; i++)
394			if (vidd_get_info(sc->adp, i, &info) == 0 &&
395			    info.vi_width == 800 && info.vi_height == 600 &&
396			    sc_support_pixel_mode(&info) &&
397			    info.vi_depth > depth) {
398				vmode = i;
399				depth = info.vi_depth;
400			}
401		if (vmode == 0)
402			return;
403		vidd_get_info(sc->adp, vmode, &info);
404	}
405
406#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
407	fontsize = info.vi_cheight;
408#else
409	fontsize = scp->font_size;
410#endif
411	if (fontsize < 14)
412		fontsize = 8;
413	else if (fontsize >= 16)
414		fontsize = 16;
415	else
416		fontsize = 14;
417#ifndef SC_NO_FONT_LOADING
418	switch (fontsize) {
419	case 8:
420		if ((sc->fonts_loaded & FONT_8) == 0)
421			return;
422		font = sc->font_8;
423		break;
424	case 14:
425		if ((sc->fonts_loaded & FONT_14) == 0)
426			return;
427		font = sc->font_14;
428		break;
429	case 16:
430		if ((sc->fonts_loaded & FONT_16) == 0)
431			return;
432		font = sc->font_16;
433		break;
434	}
435#else
436	font = NULL;
437#endif
438#ifdef DEV_SPLASH
439	if ((sc->flags & SC_SPLASH_SCRN) != 0)
440		splash_term(sc->adp);
441#endif
442#ifndef SC_NO_HISTORY
443	if (scp->history != NULL) {
444		sc_vtb_append(&scp->vtb, 0, scp->history,
445		    scp->ypos * scp->xsize + scp->xpos);
446		scp->history_pos = sc_vtb_tail(scp->history);
447	}
448#endif
449	vidd_set_mode(sc->adp, vmode);
450	scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
451	scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
452	scp->xpixel = info.vi_width;
453	scp->ypixel = info.vi_height;
454	scp->xsize = scp->xpixel / 8;
455	scp->ysize = scp->ypixel / fontsize;
456	scp->xpos = 0;
457	scp->ypos = scp->ysize - 1;
458	scp->xoff = scp->yoff = 0;
459	scp->font = font;
460	scp->font_size = fontsize;
461	scp->font_width = 8;
462	scp->start = scp->xsize * scp->ysize - 1;
463	scp->end = 0;
464	scp->cursor_pos = scp->cursor_oldpos = scp->xsize * scp->xsize;
465	scp->mode = sc->initial_mode = vmode;
466#ifndef __sparc64__
467	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
468	    (void *)sc->adp->va_window, FALSE);
469#endif
470	sc_alloc_scr_buffer(scp, FALSE, FALSE);
471	sc_init_emulator(scp, NULL);
472#ifndef SC_NO_CUTPASTE
473	sc_alloc_cut_buffer(scp, FALSE);
474#endif
475#ifndef SC_NO_HISTORY
476	sc_alloc_history_buffer(scp, 0, 0, FALSE);
477#endif
478	sc_set_border(scp, scp->border);
479	sc_set_cursor_image(scp);
480	scp->status &= ~UNKNOWN_MODE;
481#ifdef DEV_SPLASH
482	if ((sc->flags & SC_SPLASH_SCRN) != 0)
483		splash_init(sc->adp, scsplash_callback, sc);
484#endif
485}
486#endif
487
488int
489sc_attach_unit(int unit, int flags)
490{
491    sc_softc_t *sc;
492    scr_stat *scp;
493    struct cdev *dev;
494    int vc;
495
496    if (!vty_enabled(VTY_SC))
497        return ENXIO;
498
499    flags &= ~SC_KERNEL_CONSOLE;
500
501    if (sc_console_unit == unit) {
502	/*
503	 * If this unit is being used as the system console, we need to
504	 * adjust some variables and buffers before and after scinit().
505	 */
506	/* assert(sc_console != NULL) */
507	flags |= SC_KERNEL_CONSOLE;
508	scmeminit(NULL);
509    }
510    scinit(unit, flags);
511
512    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
513    sc->config = flags;
514    callout_init(&sc->ctimeout, 0);
515    callout_init(&sc->cblink, 0);
516    scp = sc_get_stat(sc->dev[0]);
517    if (sc_console == NULL)	/* sc_console_unit < 0 */
518	sc_console = scp;
519
520#ifdef SC_PIXEL_MODE
521    if ((sc->config & SC_VESAMODE) != 0)
522	sc_set_vesa_mode(scp, sc, unit);
523#endif /* SC_PIXEL_MODE */
524
525    /* initialize cursor */
526    if (!ISGRAPHSC(scp))
527    	update_cursor_image(scp);
528
529    /* get screen update going */
530    scrn_timer(sc);
531
532    /* set up the keyboard */
533    (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
534    update_kbd_state(scp, scp->status, LOCK_MASK);
535
536    printf("%s%d: %s <%d virtual consoles, flags=0x%x>\n",
537	   SC_DRIVER_NAME, unit, adapter_name(sc->adp), sc->vtys, sc->config);
538    if (bootverbose) {
539	printf("%s%d:", SC_DRIVER_NAME, unit);
540    	if (sc->adapter >= 0)
541	    printf(" fb%d", sc->adapter);
542	if (sc->keyboard >= 0)
543	    printf(", kbd%d", sc->keyboard);
544	if (scp->tsw)
545	    printf(", terminal emulator: %s (%s)",
546		   scp->tsw->te_name, scp->tsw->te_desc);
547	printf("\n");
548    }
549
550    /* Register suspend/resume/shutdown callbacks for the kernel console. */
551    if (sc_console_unit == unit) {
552	EVENTHANDLER_REGISTER(power_suspend_early, scsuspend, NULL,
553			      EVENTHANDLER_PRI_ANY);
554	EVENTHANDLER_REGISTER(power_resume, scresume, NULL,
555			      EVENTHANDLER_PRI_ANY);
556	EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown, NULL,
557			      SHUTDOWN_PRI_DEFAULT);
558    }
559
560    for (vc = 0; vc < sc->vtys; vc++) {
561	if (sc->dev[vc] == NULL) {
562		sc->dev[vc] = sc_alloc_tty(vc, vc + unit * MAXCONS);
563		if (vc == 0 && sc->dev == main_devs)
564			SC_STAT(sc->dev[0]) = &main_console;
565	}
566	/*
567	 * The first vty already has struct tty and scr_stat initialized
568	 * in scinit().  The other vtys will have these structs when
569	 * first opened.
570	 */
571    }
572
573    dev = make_dev(&consolectl_devsw, 0, UID_ROOT, GID_WHEEL, 0600,
574        "consolectl");
575    dev->si_drv1 = sc->dev[0];
576
577    return 0;
578}
579
580static void
581scmeminit(void *arg)
582{
583    if (!vty_enabled(VTY_SC))
584        return;
585    if (sc_malloc)
586	return;
587    sc_malloc = TRUE;
588
589    /*
590     * As soon as malloc() becomes functional, we had better allocate
591     * various buffers for the kernel console.
592     */
593
594    if (sc_console_unit < 0)	/* sc_console == NULL */
595	return;
596
597    /* copy the temporary buffer to the final buffer */
598    sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
599
600#ifndef SC_NO_CUTPASTE
601    sc_alloc_cut_buffer(sc_console, FALSE);
602#endif
603
604#ifndef SC_NO_HISTORY
605    /* initialize history buffer & pointers */
606    sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
607#endif
608}
609
610/* XXX */
611SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
612
613static int
614scdevtounit(struct tty *tp)
615{
616    int vty = SC_VTY(tp);
617
618    if (vty == SC_CONSOLECTL)
619	return ((sc_console != NULL) ? sc_console->sc->unit : -1);
620    else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit()))
621	return -1;
622    else
623	return vty/MAXCONS;
624}
625
626static int
627sctty_open(struct tty *tp)
628{
629    int unit = scdevtounit(tp);
630    sc_softc_t *sc;
631    scr_stat *scp;
632#ifndef __sparc64__
633    keyarg_t key;
634#endif
635
636    DPRINTF(5, ("scopen: dev:%s, unit:%d, vty:%d\n",
637		devtoname(tp->t_dev), unit, SC_VTY(tp)));
638
639    sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
640    if (sc == NULL)
641	return ENXIO;
642
643    if (!tty_opened(tp)) {
644        /* Use the current setting of the <-- key as default VERASE. */
645        /* If the Delete key is preferable, an stty is necessary     */
646#ifndef __sparc64__
647	if (sc->kbd != NULL) {
648	    key.keynum = KEYCODE_BS;
649	    (void)kbdd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
650            tp->t_termios.c_cc[VERASE] = key.key.map[0];
651	}
652#endif
653    }
654
655    scp = sc_get_stat(tp);
656    if (scp == NULL) {
657	scp = SC_STAT(tp) = alloc_scp(sc, SC_VTY(tp));
658	if (ISGRAPHSC(scp))
659	    sc_set_pixel_mode(scp, NULL, 0, 0, 16, 8);
660    }
661    if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
662	tp->t_winsize.ws_col = scp->xsize;
663	tp->t_winsize.ws_row = scp->ysize;
664    }
665
666    return (0);
667}
668
669static void
670sctty_close(struct tty *tp)
671{
672    scr_stat *scp;
673    int s;
674
675    if (SC_VTY(tp) != SC_CONSOLECTL) {
676	scp = sc_get_stat(tp);
677	/* were we in the middle of the VT switching process? */
678	DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
679	s = spltty();
680	if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit))
681	    cnavailable(sc_consptr, TRUE);
682	if (finish_vt_rel(scp, TRUE, &s) == 0)	/* force release */
683	    DPRINTF(5, ("reset WAIT_REL, "));
684	if (finish_vt_acq(scp) == 0)		/* force acknowledge */
685	    DPRINTF(5, ("reset WAIT_ACQ, "));
686#ifdef not_yet_done
687	if (scp == &main_console) {
688	    scp->pid = 0;
689	    scp->proc = NULL;
690	    scp->smode.mode = VT_AUTO;
691	}
692	else {
693	    sc_vtb_destroy(&scp->vtb);
694#ifndef __sparc64__
695	    sc_vtb_destroy(&scp->scr);
696#endif
697	    sc_free_history_buffer(scp, scp->ysize);
698	    SC_STAT(tp) = NULL;
699	    free(scp, M_DEVBUF);
700	}
701#else
702	scp->pid = 0;
703	scp->proc = NULL;
704	scp->smode.mode = VT_AUTO;
705#endif
706	scp->kbd_mode = K_XLATE;
707	if (scp == scp->sc->cur_scp)
708	    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
709	DPRINTF(5, ("done.\n"));
710    }
711}
712
713#if 0 /* XXX mpsafetty: fix screensaver. What about outwakeup? */
714static int
715scread(struct cdev *dev, struct uio *uio, int flag)
716{
717    if (!sc_saver_keyb_only)
718	sc_touch_scrn_saver();
719    return ttyread(dev, uio, flag);
720}
721#endif
722
723static int
724sckbdevent(keyboard_t *thiskbd, int event, void *arg)
725{
726    sc_softc_t *sc;
727    struct tty *cur_tty;
728    int c, error = 0;
729    size_t len;
730    const u_char *cp;
731
732    sc = (sc_softc_t *)arg;
733    /* assert(thiskbd == sc->kbd) */
734
735    mtx_lock(&Giant);
736
737    switch (event) {
738    case KBDIO_KEYINPUT:
739	break;
740    case KBDIO_UNLOADING:
741	sc->kbd = NULL;
742	sc->keyboard = -1;
743	kbd_release(thiskbd, (void *)&sc->keyboard);
744	goto done;
745    default:
746	error = EINVAL;
747	goto done;
748    }
749
750    /*
751     * Loop while there is still input to get from the keyboard.
752     * I don't think this is nessesary, and it doesn't fix
753     * the Xaccel-2.1 keyboard hang, but it can't hurt.		XXX
754     */
755    while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) {
756
757	cur_tty = SC_DEV(sc, sc->cur_scp->index);
758	if (!tty_opened_ns(cur_tty))
759	    continue;
760
761	if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
762	    continue;
763
764	switch (KEYFLAGS(c)) {
765	case 0x0000: /* normal key */
766	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
767	    break;
768	case FKEY:  /* function key, return string */
769	    cp = (*sc->cur_scp->tsw->te_fkeystr)(sc->cur_scp, c);
770	    if (cp != NULL) {
771	    	ttydisc_rint_simple(cur_tty, cp, strlen(cp));
772		break;
773	    }
774	    cp = kbdd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
775	    if (cp != NULL)
776	    	ttydisc_rint_simple(cur_tty, cp, len);
777	    break;
778	case MKEY:  /* meta is active, prepend ESC */
779	    ttydisc_rint(cur_tty, 0x1b, 0);
780	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
781	    break;
782	case BKEY:  /* backtab fixed sequence (esc [ Z) */
783	    ttydisc_rint_simple(cur_tty, "\x1B[Z", 3);
784	    break;
785	}
786
787	ttydisc_rint_done(cur_tty);
788    }
789
790    sc->cur_scp->status |= MOUSE_HIDDEN;
791
792done:
793    mtx_unlock(&Giant);
794    return (error);
795}
796
797static int
798sctty_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
799{
800    int error;
801    int i;
802    sc_softc_t *sc;
803    scr_stat *scp;
804    int s;
805#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
806    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
807    int ival;
808#endif
809
810    /* If there is a user_ioctl function call that first */
811    if (sc_user_ioctl) {
812	error = (*sc_user_ioctl)(tp, cmd, data, td);
813	if (error != ENOIOCTL)
814	    return error;
815    }
816
817    error = sc_vid_ioctl(tp, cmd, data, td);
818    if (error != ENOIOCTL)
819	return error;
820
821#ifndef SC_NO_HISTORY
822    error = sc_hist_ioctl(tp, cmd, data, td);
823    if (error != ENOIOCTL)
824	return error;
825#endif
826
827#ifndef SC_NO_SYSMOUSE
828    error = sc_mouse_ioctl(tp, cmd, data, td);
829    if (error != ENOIOCTL)
830	return error;
831#endif
832
833    scp = sc_get_stat(tp);
834    /* assert(scp != NULL) */
835    /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
836    sc = scp->sc;
837
838    if (scp->tsw) {
839	error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, td);
840	if (error != ENOIOCTL)
841	    return error;
842    }
843
844    switch (cmd) {  		/* process console hardware related ioctl's */
845
846    case GIO_ATTR:      	/* get current attributes */
847	/* this ioctl is not processed here, but in the terminal emulator */
848	return ENOTTY;
849
850    case GIO_COLOR:     	/* is this a color console ? */
851	*(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
852	return 0;
853
854    case CONS_BLANKTIME:    	/* set screen saver timeout (0 = no saver) */
855	if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
856            return EINVAL;
857	s = spltty();
858	scrn_blank_time = *(int *)data;
859	run_scrn_saver = (scrn_blank_time != 0);
860	splx(s);
861	return 0;
862
863    case CONS_CURSORTYPE:   	/* set cursor type (obsolete) */
864	s = spltty();
865	*(int *)data &= CONS_CURSOR_ATTRS;
866	sc_change_cursor_shape(scp, *(int *)data, -1, -1);
867	splx(s);
868	return 0;
869
870    case CONS_GETCURSORSHAPE:   /* get cursor shape (new interface) */
871	if (((int *)data)[0] & CONS_LOCAL_CURSOR) {
872	    ((int *)data)[0] = scp->curr_curs_attr.flags;
873	    ((int *)data)[1] = scp->curr_curs_attr.base;
874	    ((int *)data)[2] = scp->curr_curs_attr.height;
875	} else {
876	    ((int *)data)[0] = sc->curs_attr.flags;
877	    ((int *)data)[1] = sc->curs_attr.base;
878	    ((int *)data)[2] = sc->curs_attr.height;
879	}
880	return 0;
881
882    case CONS_SETCURSORSHAPE:   /* set cursor shape (new interface) */
883	s = spltty();
884	sc_change_cursor_shape(scp, ((int *)data)[0],
885	    ((int *)data)[1], ((int *)data)[2]);
886	splx(s);
887	return 0;
888
889    case CONS_BELLTYPE: 	/* set bell type sound/visual */
890	if ((*(int *)data) & CONS_VISUAL_BELL)
891	    sc->flags |= SC_VISUAL_BELL;
892	else
893	    sc->flags &= ~SC_VISUAL_BELL;
894	if ((*(int *)data) & CONS_QUIET_BELL)
895	    sc->flags |= SC_QUIET_BELL;
896	else
897	    sc->flags &= ~SC_QUIET_BELL;
898	return 0;
899
900    case CONS_GETINFO:  	/* get current (virtual) console info */
901    {
902	vid_info_t *ptr = (vid_info_t*)data;
903	if (ptr->size == sizeof(struct vid_info)) {
904	    ptr->m_num = sc->cur_scp->index;
905	    ptr->font_size = scp->font_size;
906	    ptr->mv_col = scp->xpos;
907	    ptr->mv_row = scp->ypos;
908	    ptr->mv_csz = scp->xsize;
909	    ptr->mv_rsz = scp->ysize;
910	    ptr->mv_hsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
911	    /*
912	     * The following fields are filled by the terminal emulator. XXX
913	     *
914	     * ptr->mv_norm.fore
915	     * ptr->mv_norm.back
916	     * ptr->mv_rev.fore
917	     * ptr->mv_rev.back
918	     */
919	    ptr->mv_grfc.fore = 0;      /* not supported */
920	    ptr->mv_grfc.back = 0;      /* not supported */
921	    ptr->mv_ovscan = scp->border;
922	    if (scp == sc->cur_scp)
923		save_kbd_state(scp);
924	    ptr->mk_keylock = scp->status & LOCK_MASK;
925	    return 0;
926	}
927	return EINVAL;
928    }
929
930    case CONS_GETVERS:  	/* get version number */
931	*(int*)data = 0x200;    /* version 2.0 */
932	return 0;
933
934    case CONS_IDLE:		/* see if the screen has been idle */
935	/*
936	 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
937	 * the user process may have been writing something on the
938	 * screen and syscons is not aware of it. Declare the screen
939	 * is NOT idle if it is in one of these modes. But there is
940	 * an exception to it; if a screen saver is running in the
941	 * graphics mode in the current screen, we should say that the
942	 * screen has been idle.
943	 */
944	*(int *)data = (sc->flags & SC_SCRN_IDLE)
945		       && (!ISGRAPHSC(sc->cur_scp)
946			   || (sc->cur_scp->status & SAVER_RUNNING));
947	return 0;
948
949    case CONS_SAVERMODE:	/* set saver mode */
950	switch(*(int *)data) {
951	case CONS_NO_SAVER:
952	case CONS_USR_SAVER:
953	    /* if a LKM screen saver is running, stop it first. */
954	    scsplash_stick(FALSE);
955	    saver_mode = *(int *)data;
956	    s = spltty();
957#ifdef DEV_SPLASH
958	    if ((error = wait_scrn_saver_stop(NULL))) {
959		splx(s);
960		return error;
961	    }
962#endif
963	    run_scrn_saver = TRUE;
964	    if (saver_mode == CONS_USR_SAVER)
965		scp->status |= SAVER_RUNNING;
966	    else
967		scp->status &= ~SAVER_RUNNING;
968	    scsplash_stick(TRUE);
969	    splx(s);
970	    break;
971	case CONS_LKM_SAVER:
972	    s = spltty();
973	    if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING))
974		scp->status &= ~SAVER_RUNNING;
975	    saver_mode = *(int *)data;
976	    splx(s);
977	    break;
978	default:
979	    return EINVAL;
980	}
981	return 0;
982
983    case CONS_SAVERSTART:	/* immediately start/stop the screen saver */
984	/*
985	 * Note that this ioctl does not guarantee the screen saver
986	 * actually starts or stops. It merely attempts to do so...
987	 */
988	s = spltty();
989	run_scrn_saver = (*(int *)data != 0);
990	if (run_scrn_saver)
991	    sc->scrn_time_stamp -= scrn_blank_time;
992	splx(s);
993	return 0;
994
995    case CONS_SCRSHOT:		/* get a screen shot */
996    {
997	int retval, hist_rsz;
998	size_t lsize, csize;
999	vm_offset_t frbp, hstp;
1000	unsigned lnum;
1001	scrshot_t *ptr = (scrshot_t *)data;
1002	void *outp = ptr->buf;
1003
1004	if (ptr->x < 0 || ptr->y < 0 || ptr->xsize < 0 || ptr->ysize < 0)
1005		return EINVAL;
1006	s = spltty();
1007	if (ISGRAPHSC(scp)) {
1008	    splx(s);
1009	    return EOPNOTSUPP;
1010	}
1011	hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
1012	if (((u_int)ptr->x + ptr->xsize) > scp->xsize ||
1013	    ((u_int)ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
1014	    splx(s);
1015	    return EINVAL;
1016	}
1017
1018	lsize = scp->xsize * sizeof(u_int16_t);
1019	csize = ptr->xsize * sizeof(u_int16_t);
1020	/* Pointer to the last line of framebuffer */
1021	frbp = scp->vtb.vtb_buffer + scp->ysize * lsize + ptr->x *
1022	       sizeof(u_int16_t);
1023	/* Pointer to the last line of target buffer */
1024	outp = (char *)outp + ptr->ysize * csize;
1025	/* Pointer to the last line of history buffer */
1026	if (scp->history != NULL)
1027	    hstp = scp->history->vtb_buffer + sc_vtb_tail(scp->history) *
1028		sizeof(u_int16_t) + ptr->x * sizeof(u_int16_t);
1029	else
1030	    hstp = 0;
1031
1032	retval = 0;
1033	for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
1034	    if (lnum < scp->ysize) {
1035		frbp -= lsize;
1036	    } else {
1037		hstp -= lsize;
1038		if (hstp < scp->history->vtb_buffer)
1039		    hstp += scp->history->vtb_rows * lsize;
1040		frbp = hstp;
1041	    }
1042	    if (lnum < ptr->y)
1043		continue;
1044	    outp = (char *)outp - csize;
1045	    retval = copyout((void *)frbp, outp, csize);
1046	    if (retval != 0)
1047		break;
1048	}
1049	splx(s);
1050	return retval;
1051    }
1052
1053    case VT_SETMODE:    	/* set screen switcher mode */
1054    {
1055	struct vt_mode *mode;
1056	struct proc *p1;
1057
1058	mode = (struct vt_mode *)data;
1059	DPRINTF(5, ("%s%d: VT_SETMODE ", SC_DRIVER_NAME, sc->unit));
1060	if (scp->smode.mode == VT_PROCESS) {
1061	    p1 = pfind(scp->pid);
1062    	    if (scp->proc == p1 && scp->proc != td->td_proc) {
1063		if (p1)
1064		    PROC_UNLOCK(p1);
1065		DPRINTF(5, ("error EPERM\n"));
1066		return EPERM;
1067	    }
1068	    if (p1)
1069		PROC_UNLOCK(p1);
1070	}
1071	s = spltty();
1072	if (mode->mode == VT_AUTO) {
1073	    scp->smode.mode = VT_AUTO;
1074	    scp->proc = NULL;
1075	    scp->pid = 0;
1076	    DPRINTF(5, ("VT_AUTO, "));
1077	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
1078		cnavailable(sc_consptr, TRUE);
1079	    /* were we in the middle of the vty switching process? */
1080	    if (finish_vt_rel(scp, TRUE, &s) == 0)
1081		DPRINTF(5, ("reset WAIT_REL, "));
1082	    if (finish_vt_acq(scp) == 0)
1083		DPRINTF(5, ("reset WAIT_ACQ, "));
1084	} else {
1085	    if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig)
1086		|| !ISSIGVALID(mode->frsig)) {
1087		splx(s);
1088		DPRINTF(5, ("error EINVAL\n"));
1089		return EINVAL;
1090	    }
1091	    DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
1092	    bcopy(data, &scp->smode, sizeof(struct vt_mode));
1093	    scp->proc = td->td_proc;
1094	    scp->pid = scp->proc->p_pid;
1095	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
1096		cnavailable(sc_consptr, FALSE);
1097	}
1098	splx(s);
1099	DPRINTF(5, ("\n"));
1100	return 0;
1101    }
1102
1103    case VT_GETMODE:    	/* get screen switcher mode */
1104	bcopy(&scp->smode, data, sizeof(struct vt_mode));
1105	return 0;
1106
1107#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1108    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1109    case _IO('v', 4):
1110	ival = IOCPARM_IVAL(data);
1111	data = (caddr_t)&ival;
1112	/* FALLTHROUGH */
1113#endif
1114    case VT_RELDISP:    	/* screen switcher ioctl */
1115	s = spltty();
1116	/*
1117	 * This must be the current vty which is in the VT_PROCESS
1118	 * switching mode...
1119	 */
1120	if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
1121	    splx(s);
1122	    return EINVAL;
1123	}
1124	/* ...and this process is controlling it. */
1125	if (scp->proc != td->td_proc) {
1126	    splx(s);
1127	    return EPERM;
1128	}
1129	error = EINVAL;
1130	switch(*(int *)data) {
1131	case VT_FALSE:  	/* user refuses to release screen, abort */
1132	    if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
1133		DPRINTF(5, ("%s%d: VT_FALSE\n", SC_DRIVER_NAME, sc->unit));
1134	    break;
1135	case VT_TRUE:   	/* user has released screen, go on */
1136	    if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
1137		DPRINTF(5, ("%s%d: VT_TRUE\n", SC_DRIVER_NAME, sc->unit));
1138	    break;
1139	case VT_ACKACQ: 	/* acquire acknowledged, switch completed */
1140	    if ((error = finish_vt_acq(scp)) == 0)
1141		DPRINTF(5, ("%s%d: VT_ACKACQ\n", SC_DRIVER_NAME, sc->unit));
1142	    break;
1143	default:
1144	    break;
1145	}
1146	splx(s);
1147	return error;
1148
1149    case VT_OPENQRY:    	/* return free virtual console */
1150	for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
1151	    tp = SC_DEV(sc, i);
1152	    if (!tty_opened_ns(tp)) {
1153		*(int *)data = i + 1;
1154		return 0;
1155	    }
1156	}
1157	return EINVAL;
1158
1159#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1160    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1161    case _IO('v', 5):
1162	ival = IOCPARM_IVAL(data);
1163	data = (caddr_t)&ival;
1164	/* FALLTHROUGH */
1165#endif
1166    case VT_ACTIVATE:   	/* switch to screen *data */
1167	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1168	s = spltty();
1169	error = sc_clean_up(sc->cur_scp);
1170	splx(s);
1171	if (error)
1172	    return error;
1173	error = sc_switch_scr(sc, i);
1174	return (error);
1175
1176#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1177    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1178    case _IO('v', 6):
1179	ival = IOCPARM_IVAL(data);
1180	data = (caddr_t)&ival;
1181	/* FALLTHROUGH */
1182#endif
1183    case VT_WAITACTIVE: 	/* wait for switch to occur */
1184	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1185	if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
1186	    return EINVAL;
1187	if (i == sc->cur_scp->index)
1188	    return 0;
1189	error = tsleep(VTY_WCHAN(sc, i), (PZERO + 1) | PCATCH, "waitvt", 0);
1190	return error;
1191
1192    case VT_GETACTIVE:		/* get active vty # */
1193	*(int *)data = sc->cur_scp->index + 1;
1194	return 0;
1195
1196    case VT_GETINDEX:		/* get this vty # */
1197	*(int *)data = scp->index + 1;
1198	return 0;
1199
1200    case VT_LOCKSWITCH:		/* prevent vty switching */
1201	if ((*(int *)data) & 0x01)
1202	    sc->flags |= SC_SCRN_VTYLOCK;
1203	else
1204	    sc->flags &= ~SC_SCRN_VTYLOCK;
1205	return 0;
1206
1207    case KDENABIO:      	/* allow io operations */
1208	error = priv_check(td, PRIV_IO);
1209	if (error != 0)
1210	    return error;
1211	error = securelevel_gt(td->td_ucred, 0);
1212	if (error != 0)
1213		return error;
1214#ifdef __i386__
1215	td->td_frame->tf_eflags |= PSL_IOPL;
1216#elif defined(__amd64__)
1217	td->td_frame->tf_rflags |= PSL_IOPL;
1218#endif
1219	return 0;
1220
1221    case KDDISABIO:     	/* disallow io operations (default) */
1222#ifdef __i386__
1223	td->td_frame->tf_eflags &= ~PSL_IOPL;
1224#elif defined(__amd64__)
1225	td->td_frame->tf_rflags &= ~PSL_IOPL;
1226#endif
1227	return 0;
1228
1229#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1230    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1231    case _IO('K', 20):
1232	ival = IOCPARM_IVAL(data);
1233	data = (caddr_t)&ival;
1234	/* FALLTHROUGH */
1235#endif
1236    case KDSKBSTATE:    	/* set keyboard state (locks) */
1237	if (*(int *)data & ~LOCK_MASK)
1238	    return EINVAL;
1239	scp->status &= ~LOCK_MASK;
1240	scp->status |= *(int *)data;
1241	if (scp == sc->cur_scp)
1242	    update_kbd_state(scp, scp->status, LOCK_MASK);
1243	return 0;
1244
1245    case KDGKBSTATE:    	/* get keyboard state (locks) */
1246	if (scp == sc->cur_scp)
1247	    save_kbd_state(scp);
1248	*(int *)data = scp->status & LOCK_MASK;
1249	return 0;
1250
1251    case KDGETREPEAT:      	/* get keyboard repeat & delay rates */
1252    case KDSETREPEAT:      	/* set keyboard repeat & delay rates (new) */
1253	error = kbdd_ioctl(sc->kbd, cmd, data);
1254	if (error == ENOIOCTL)
1255	    error = ENODEV;
1256	return error;
1257
1258#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1259    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1260    case _IO('K', 67):
1261	ival = IOCPARM_IVAL(data);
1262	data = (caddr_t)&ival;
1263	/* FALLTHROUGH */
1264#endif
1265    case KDSETRAD:      	/* set keyboard repeat & delay rates (old) */
1266	if (*(int *)data & ~0x7f)
1267	    return EINVAL;
1268	error = kbdd_ioctl(sc->kbd, KDSETRAD, data);
1269	if (error == ENOIOCTL)
1270	    error = ENODEV;
1271	return error;
1272
1273#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1274    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1275    case _IO('K', 7):
1276	ival = IOCPARM_IVAL(data);
1277	data = (caddr_t)&ival;
1278	/* FALLTHROUGH */
1279#endif
1280    case KDSKBMODE:     	/* set keyboard mode */
1281	switch (*(int *)data) {
1282	case K_XLATE:   	/* switch to XLT ascii mode */
1283	case K_RAW: 		/* switch to RAW scancode mode */
1284	case K_CODE: 		/* switch to CODE mode */
1285	    scp->kbd_mode = *(int *)data;
1286	    if (scp == sc->cur_scp)
1287		(void)kbdd_ioctl(sc->kbd, KDSKBMODE, data);
1288	    return 0;
1289	default:
1290	    return EINVAL;
1291	}
1292	/* NOT REACHED */
1293
1294    case KDGKBMODE:     	/* get keyboard mode */
1295	*(int *)data = scp->kbd_mode;
1296	return 0;
1297
1298    case KDGKBINFO:
1299	error = kbdd_ioctl(sc->kbd, cmd, data);
1300	if (error == ENOIOCTL)
1301	    error = ENODEV;
1302	return error;
1303
1304#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1305    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1306    case _IO('K', 8):
1307	ival = IOCPARM_IVAL(data);
1308	data = (caddr_t)&ival;
1309	/* FALLTHROUGH */
1310#endif
1311    case KDMKTONE:      	/* sound the bell */
1312	if (*(int*)data)
1313	    sc_bell(scp, (*(int*)data)&0xffff,
1314		    (((*(int*)data)>>16)&0xffff)*hz/1000);
1315	else
1316	    sc_bell(scp, scp->bell_pitch, scp->bell_duration);
1317	return 0;
1318
1319#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1320    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1321    case _IO('K', 63):
1322	ival = IOCPARM_IVAL(data);
1323	data = (caddr_t)&ival;
1324	/* FALLTHROUGH */
1325#endif
1326    case KIOCSOUND:     	/* make tone (*data) hz */
1327	if (scp == sc->cur_scp) {
1328	    if (*(int *)data)
1329		return sc_tone(*(int *)data);
1330	    else
1331		return sc_tone(0);
1332	}
1333	return 0;
1334
1335    case KDGKBTYPE:     	/* get keyboard type */
1336	error = kbdd_ioctl(sc->kbd, cmd, data);
1337	if (error == ENOIOCTL) {
1338	    /* always return something? XXX */
1339	    *(int *)data = 0;
1340	}
1341	return 0;
1342
1343#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1344    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1345    case _IO('K', 66):
1346	ival = IOCPARM_IVAL(data);
1347	data = (caddr_t)&ival;
1348	/* FALLTHROUGH */
1349#endif
1350    case KDSETLED:      	/* set keyboard LED status */
1351	if (*(int *)data & ~LED_MASK)	/* FIXME: LOCK_MASK? */
1352	    return EINVAL;
1353	scp->status &= ~LED_MASK;
1354	scp->status |= *(int *)data;
1355	if (scp == sc->cur_scp)
1356	    update_kbd_leds(scp, scp->status);
1357	return 0;
1358
1359    case KDGETLED:      	/* get keyboard LED status */
1360	if (scp == sc->cur_scp)
1361	    save_kbd_state(scp);
1362	*(int *)data = scp->status & LED_MASK;
1363	return 0;
1364
1365    case KBADDKBD:		/* add/remove keyboard to/from mux */
1366    case KBRELKBD:
1367	error = kbdd_ioctl(sc->kbd, cmd, data);
1368	if (error == ENOIOCTL)
1369	    error = ENODEV;
1370	return error;
1371
1372#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1373    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1374    case _IO('c', 110):
1375	ival = IOCPARM_IVAL(data);
1376	data = (caddr_t)&ival;
1377	/* FALLTHROUGH */
1378#endif
1379    case CONS_SETKBD: 		/* set the new keyboard */
1380	{
1381	    keyboard_t *newkbd;
1382
1383	    s = spltty();
1384	    newkbd = kbd_get_keyboard(*(int *)data);
1385	    if (newkbd == NULL) {
1386		splx(s);
1387		return EINVAL;
1388	    }
1389	    error = 0;
1390	    if (sc->kbd != newkbd) {
1391		i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
1392				 (void *)&sc->keyboard, sckbdevent, sc);
1393		/* i == newkbd->kb_index */
1394		if (i >= 0) {
1395		    if (sc->kbd != NULL) {
1396			save_kbd_state(sc->cur_scp);
1397			kbd_release(sc->kbd, (void *)&sc->keyboard);
1398		    }
1399		    sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */
1400		    sc->keyboard = i;
1401		    (void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1402			      (caddr_t)&sc->cur_scp->kbd_mode);
1403		    update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1404				     LOCK_MASK);
1405		} else {
1406		    error = EPERM;	/* XXX */
1407		}
1408	    }
1409	    splx(s);
1410	    return error;
1411	}
1412
1413    case CONS_RELKBD: 		/* release the current keyboard */
1414	s = spltty();
1415	error = 0;
1416	if (sc->kbd != NULL) {
1417	    save_kbd_state(sc->cur_scp);
1418	    error = kbd_release(sc->kbd, (void *)&sc->keyboard);
1419	    if (error == 0) {
1420		sc->kbd = NULL;
1421		sc->keyboard = -1;
1422	    }
1423	}
1424	splx(s);
1425	return error;
1426
1427    case CONS_GETTERM:		/* get the current terminal emulator info */
1428	{
1429	    sc_term_sw_t *sw;
1430
1431	    if (((term_info_t *)data)->ti_index == 0) {
1432		sw = scp->tsw;
1433	    } else {
1434		sw = sc_term_match_by_number(((term_info_t *)data)->ti_index);
1435	    }
1436	    if (sw != NULL) {
1437		strncpy(((term_info_t *)data)->ti_name, sw->te_name,
1438			sizeof(((term_info_t *)data)->ti_name));
1439		strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
1440			sizeof(((term_info_t *)data)->ti_desc));
1441		((term_info_t *)data)->ti_flags = 0;
1442		return 0;
1443	    } else {
1444		((term_info_t *)data)->ti_name[0] = '\0';
1445		((term_info_t *)data)->ti_desc[0] = '\0';
1446		((term_info_t *)data)->ti_flags = 0;
1447		return EINVAL;
1448	    }
1449	}
1450
1451    case CONS_SETTERM:		/* set the current terminal emulator */
1452	s = spltty();
1453	error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
1454	/* FIXME: what if scp == sc_console! XXX */
1455	splx(s);
1456	return error;
1457
1458    case GIO_SCRNMAP:   	/* get output translation table */
1459	bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
1460	return 0;
1461
1462    case PIO_SCRNMAP:   	/* set output translation table */
1463	bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
1464	for (i=0; i<sizeof(sc->scr_map); i++) {
1465	    sc->scr_rmap[sc->scr_map[i]] = i;
1466	}
1467	return 0;
1468
1469    case GIO_KEYMAP:		/* get keyboard translation table */
1470    case PIO_KEYMAP:		/* set keyboard translation table */
1471    case OGIO_KEYMAP:		/* get keyboard translation table (compat) */
1472    case OPIO_KEYMAP:		/* set keyboard translation table (compat) */
1473    case GIO_DEADKEYMAP:	/* get accent key translation table */
1474    case PIO_DEADKEYMAP:	/* set accent key translation table */
1475    case GETFKEY:		/* get function key string */
1476    case SETFKEY:		/* set function key string */
1477	error = kbdd_ioctl(sc->kbd, cmd, data);
1478	if (error == ENOIOCTL)
1479	    error = ENODEV;
1480	return error;
1481
1482#ifndef SC_NO_FONT_LOADING
1483
1484    case PIO_FONT8x8:   	/* set 8x8 dot font */
1485	if (!ISFONTAVAIL(sc->adp->va_flags))
1486	    return ENXIO;
1487	bcopy(data, sc->font_8, 8*256);
1488	sc->fonts_loaded |= FONT_8;
1489	/*
1490	 * FONT KLUDGE
1491	 * Always use the font page #0. XXX
1492	 * Don't load if the current font size is not 8x8.
1493	 */
1494	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
1495	    sc_load_font(sc->cur_scp, 0, 8, 8, sc->font_8, 0, 256);
1496	return 0;
1497
1498    case GIO_FONT8x8:   	/* get 8x8 dot font */
1499	if (!ISFONTAVAIL(sc->adp->va_flags))
1500	    return ENXIO;
1501	if (sc->fonts_loaded & FONT_8) {
1502	    bcopy(sc->font_8, data, 8*256);
1503	    return 0;
1504	}
1505	else
1506	    return ENXIO;
1507
1508    case PIO_FONT8x14:  	/* set 8x14 dot font */
1509	if (!ISFONTAVAIL(sc->adp->va_flags))
1510	    return ENXIO;
1511	bcopy(data, sc->font_14, 14*256);
1512	sc->fonts_loaded |= FONT_14;
1513	/*
1514	 * FONT KLUDGE
1515	 * Always use the font page #0. XXX
1516	 * Don't load if the current font size is not 8x14.
1517	 */
1518	if (ISTEXTSC(sc->cur_scp)
1519	    && (sc->cur_scp->font_size >= 14)
1520	    && (sc->cur_scp->font_size < 16))
1521	    sc_load_font(sc->cur_scp, 0, 14, 8, sc->font_14, 0, 256);
1522	return 0;
1523
1524    case GIO_FONT8x14:  	/* get 8x14 dot font */
1525	if (!ISFONTAVAIL(sc->adp->va_flags))
1526	    return ENXIO;
1527	if (sc->fonts_loaded & FONT_14) {
1528	    bcopy(sc->font_14, data, 14*256);
1529	    return 0;
1530	}
1531	else
1532	    return ENXIO;
1533
1534    case PIO_FONT8x16:  	/* set 8x16 dot font */
1535	if (!ISFONTAVAIL(sc->adp->va_flags))
1536	    return ENXIO;
1537	bcopy(data, sc->font_16, 16*256);
1538	sc->fonts_loaded |= FONT_16;
1539	/*
1540	 * FONT KLUDGE
1541	 * Always use the font page #0. XXX
1542	 * Don't load if the current font size is not 8x16.
1543	 */
1544	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
1545	    sc_load_font(sc->cur_scp, 0, 16, 8, sc->font_16, 0, 256);
1546	return 0;
1547
1548    case GIO_FONT8x16:  	/* get 8x16 dot font */
1549	if (!ISFONTAVAIL(sc->adp->va_flags))
1550	    return ENXIO;
1551	if (sc->fonts_loaded & FONT_16) {
1552	    bcopy(sc->font_16, data, 16*256);
1553	    return 0;
1554	}
1555	else
1556	    return ENXIO;
1557
1558#endif /* SC_NO_FONT_LOADING */
1559
1560    default:
1561	break;
1562    }
1563
1564    return (ENOIOCTL);
1565}
1566
1567static int
1568consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
1569    struct thread *td)
1570{
1571
1572	return sctty_ioctl(dev->si_drv1, cmd, data, td);
1573}
1574
1575static int
1576consolectl_close(struct cdev *dev, int flags, int mode, struct thread *td)
1577{
1578#ifndef SC_NO_SYSMOUSE
1579	mouse_info_t info;
1580	memset(&info, 0, sizeof(info));
1581	info.operation = MOUSE_ACTION;
1582
1583	/*
1584	 * Make sure all buttons are released when moused and other
1585	 * console daemons exit, so that no buttons are left pressed.
1586	 */
1587	(void) sctty_ioctl(dev->si_drv1, CONS_MOUSECTL, (caddr_t)&info, td);
1588#endif
1589	return (0);
1590}
1591
1592static void
1593sc_cnprobe(struct consdev *cp)
1594{
1595    int unit;
1596    int flags;
1597
1598    if (!vty_enabled(VTY_SC)) {
1599	cp->cn_pri = CN_DEAD;
1600	return;
1601    }
1602
1603    cp->cn_pri = sc_get_cons_priority(&unit, &flags);
1604
1605    /* a video card is always required */
1606    if (!scvidprobe(unit, flags, TRUE))
1607	cp->cn_pri = CN_DEAD;
1608
1609    /* syscons will become console even when there is no keyboard */
1610    sckbdprobe(unit, flags, TRUE);
1611
1612    if (cp->cn_pri == CN_DEAD)
1613	return;
1614
1615    /* initialize required fields */
1616    strcpy(cp->cn_name, "ttyv0");
1617}
1618
1619static void
1620sc_cninit(struct consdev *cp)
1621{
1622    int unit;
1623    int flags;
1624
1625    sc_get_cons_priority(&unit, &flags);
1626    scinit(unit, flags | SC_KERNEL_CONSOLE);
1627    sc_console_unit = unit;
1628    sc_console = sc_get_stat(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1629    sc_consptr = cp;
1630}
1631
1632static void
1633sc_cnterm(struct consdev *cp)
1634{
1635    /* we are not the kernel console any more, release everything */
1636
1637    if (sc_console_unit < 0)
1638	return;			/* shouldn't happen */
1639
1640#if 0 /* XXX */
1641    sc_clear_screen(sc_console);
1642    sccnupdate(sc_console);
1643#endif
1644
1645    scterm(sc_console_unit, SC_KERNEL_CONSOLE);
1646    sc_console_unit = -1;
1647    sc_console = NULL;
1648}
1649
1650static void
1651sc_cngrab(struct consdev *cp)
1652{
1653    scr_stat *scp;
1654
1655    if (!cold &&
1656	sc_console->sc->cur_scp->index != sc_console->index &&
1657	sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
1658	sc_console->smode.mode == VT_AUTO)
1659	    sc_switch_scr(sc_console->sc, sc_console->index);
1660
1661    scp = sc_console->sc->cur_scp;
1662
1663    if (scp->sc->kbd == NULL)
1664	return;
1665
1666    if (scp->grabbed++ > 0)
1667	return;
1668
1669    /*
1670     * Make sure the keyboard is accessible even when the kbd device
1671     * driver is disabled.
1672     */
1673    kbdd_enable(scp->sc->kbd);
1674
1675    /* we shall always use the keyboard in the XLATE mode here */
1676    scp->kbd_prev_mode = scp->kbd_mode;
1677    scp->kbd_mode = K_XLATE;
1678    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1679
1680    kbdd_poll(scp->sc->kbd, TRUE);
1681}
1682
1683static void
1684sc_cnungrab(struct consdev *cp)
1685{
1686    scr_stat *scp;
1687
1688    scp = sc_console->sc->cur_scp;	/* XXX */
1689    if (scp->sc->kbd == NULL)
1690	return;
1691
1692    if (--scp->grabbed > 0)
1693	return;
1694
1695    kbdd_poll(scp->sc->kbd, FALSE);
1696
1697    scp->kbd_mode = scp->kbd_prev_mode;
1698    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1699    kbdd_disable(scp->sc->kbd);
1700}
1701
1702static void
1703sc_cnputc(struct consdev *cd, int c)
1704{
1705    u_char buf[1];
1706    scr_stat *scp = sc_console;
1707#ifndef SC_NO_HISTORY
1708#if 0
1709    struct tty *tp;
1710#endif
1711#endif /* !SC_NO_HISTORY */
1712    int s;
1713
1714    /* assert(sc_console != NULL) */
1715
1716#ifndef SC_NO_HISTORY
1717    if (scp == scp->sc->cur_scp && scp->status & SLKED) {
1718	scp->status &= ~SLKED;
1719	update_kbd_state(scp, scp->status, SLKED);
1720	if (scp->status & BUFFER_SAVED) {
1721	    if (!sc_hist_restore(scp))
1722		sc_remove_cutmarking(scp);
1723	    scp->status &= ~BUFFER_SAVED;
1724	    scp->status |= CURSOR_ENABLED;
1725	    sc_draw_cursor_image(scp);
1726	}
1727#if 0
1728	/*
1729	 * XXX: Now that TTY's have their own locks, we cannot process
1730	 * any data after disabling scroll lock. cnputs already holds a
1731	 * spinlock.
1732	 */
1733	tp = SC_DEV(scp->sc, scp->index);
1734	/* XXX "tp" can be NULL */
1735	tty_lock(tp);
1736	if (tty_opened(tp))
1737	    sctty_outwakeup(tp);
1738	tty_unlock(tp);
1739#endif
1740    }
1741#endif /* !SC_NO_HISTORY */
1742
1743    buf[0] = c;
1744    sc_puts(scp, buf, 1, 1);
1745
1746    s = spltty();	/* block sckbdevent and scrn_timer */
1747    sccnupdate(scp);
1748    splx(s);
1749}
1750
1751static int
1752sc_cngetc(struct consdev *cd)
1753{
1754    static struct fkeytab fkey;
1755    static int fkeycp;
1756    scr_stat *scp;
1757    const u_char *p;
1758    int s = spltty();	/* block sckbdevent and scrn_timer while we poll */
1759    int c;
1760
1761    /* assert(sc_console != NULL) */
1762
1763    /*
1764     * Stop the screen saver and update the screen if necessary.
1765     * What if we have been running in the screen saver code... XXX
1766     */
1767    sc_touch_scrn_saver();
1768    scp = sc_console->sc->cur_scp;	/* XXX */
1769    sccnupdate(scp);
1770
1771    if (fkeycp < fkey.len) {
1772	splx(s);
1773	return fkey.str[fkeycp++];
1774    }
1775
1776    if (scp->sc->kbd == NULL) {
1777	splx(s);
1778	return -1;
1779    }
1780
1781    c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK);
1782
1783    switch (KEYFLAGS(c)) {
1784    case 0:	/* normal char */
1785	return KEYCHAR(c);
1786    case FKEY:	/* function key */
1787	p = (*scp->tsw->te_fkeystr)(scp, c);
1788	if (p != NULL) {
1789	    fkey.len = strlen(p);
1790	    bcopy(p, fkey.str, fkey.len);
1791	    fkeycp = 1;
1792	    return fkey.str[0];
1793	}
1794	p = kbdd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
1795	fkey.len = fkeycp;
1796	if ((p != NULL) && (fkey.len > 0)) {
1797	    bcopy(p, fkey.str, fkey.len);
1798	    fkeycp = 1;
1799	    return fkey.str[0];
1800	}
1801	return c;	/* XXX */
1802    case NOKEY:
1803    case ERRKEY:
1804    default:
1805	return -1;
1806    }
1807    /* NOT REACHED */
1808}
1809
1810static void
1811sccnupdate(scr_stat *scp)
1812{
1813    /* this is a cut-down version of scrn_timer()... */
1814
1815    if (suspend_in_progress || scp->sc->font_loading_in_progress)
1816	return;
1817
1818    if (debugger > 0 || panicstr || shutdown_in_progress) {
1819	sc_touch_scrn_saver();
1820    } else if (scp != scp->sc->cur_scp) {
1821	return;
1822    }
1823
1824    if (!run_scrn_saver)
1825	scp->sc->flags &= ~SC_SCRN_IDLE;
1826#ifdef DEV_SPLASH
1827    if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
1828	if (scp->sc->flags & SC_SCRN_BLANKED)
1829            stop_scrn_saver(scp->sc, current_saver);
1830#endif
1831
1832    if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress
1833	|| scp->sc->switch_in_progress)
1834	return;
1835    /*
1836     * FIXME: unlike scrn_timer(), we call scrn_update() from here even
1837     * when write_in_progress is non-zero.  XXX
1838     */
1839
1840    if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
1841	scrn_update(scp, TRUE);
1842}
1843
1844static void
1845scrn_timer(void *arg)
1846{
1847#ifndef PC98
1848    static time_t kbd_time_stamp = 0;
1849#endif
1850    sc_softc_t *sc;
1851    scr_stat *scp;
1852    int again, rate;
1853
1854    again = (arg != NULL);
1855    if (arg != NULL)
1856	sc = (sc_softc_t *)arg;
1857    else if (sc_console != NULL)
1858	sc = sc_console->sc;
1859    else
1860	return;
1861
1862    /* find the vty to update */
1863    scp = sc->cur_scp;
1864
1865    /* don't do anything when we are performing some I/O operations */
1866    if (suspend_in_progress || sc->font_loading_in_progress)
1867	goto done;
1868
1869#ifndef PC98
1870    if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
1871	/* try to allocate a keyboard automatically */
1872	if (kbd_time_stamp != time_uptime) {
1873	    kbd_time_stamp = time_uptime;
1874	    sc->keyboard = sc_allocate_keyboard(sc, -1);
1875	    if (sc->keyboard >= 0) {
1876		sc->kbd = kbd_get_keyboard(sc->keyboard);
1877		(void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1878			  (caddr_t)&sc->cur_scp->kbd_mode);
1879		update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1880				 LOCK_MASK);
1881	    }
1882	}
1883    }
1884#endif /* PC98 */
1885
1886    /* should we stop the screen saver? */
1887    if (debugger > 0 || panicstr || shutdown_in_progress)
1888	sc_touch_scrn_saver();
1889    if (run_scrn_saver) {
1890	if (time_uptime > sc->scrn_time_stamp + scrn_blank_time)
1891	    sc->flags |= SC_SCRN_IDLE;
1892	else
1893	    sc->flags &= ~SC_SCRN_IDLE;
1894    } else {
1895	sc->scrn_time_stamp = time_uptime;
1896	sc->flags &= ~SC_SCRN_IDLE;
1897	if (scrn_blank_time > 0)
1898	    run_scrn_saver = TRUE;
1899    }
1900#ifdef DEV_SPLASH
1901    if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
1902	if (sc->flags & SC_SCRN_BLANKED)
1903            stop_scrn_saver(sc, current_saver);
1904#endif
1905
1906    /* should we just return ? */
1907    if (sc->blink_in_progress || sc->switch_in_progress
1908	|| sc->write_in_progress)
1909	goto done;
1910
1911    /* Update the screen */
1912    scp = sc->cur_scp;		/* cur_scp may have changed... */
1913    if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1914	scrn_update(scp, TRUE);
1915
1916#ifdef DEV_SPLASH
1917    /* should we activate the screen saver? */
1918    if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
1919	if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
1920	    (*current_saver)(sc, TRUE);
1921#endif
1922
1923done:
1924    if (again) {
1925	/*
1926	 * Use reduced "refresh" rate if we are in graphics and that is not a
1927	 * graphical screen saver.  In such case we just have nothing to do.
1928	 */
1929	if (ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1930	    rate = 2;
1931	else
1932	    rate = 30;
1933	callout_reset_sbt(&sc->ctimeout, SBT_1S / rate, 0,
1934	    scrn_timer, sc, C_PREL(1));
1935    }
1936}
1937
1938static int
1939and_region(int *s1, int *e1, int s2, int e2)
1940{
1941    if (*e1 < s2 || e2 < *s1)
1942	return FALSE;
1943    *s1 = imax(*s1, s2);
1944    *e1 = imin(*e1, e2);
1945    return TRUE;
1946}
1947
1948static void
1949scrn_update(scr_stat *scp, int show_cursor)
1950{
1951    int start;
1952    int end;
1953    int s;
1954    int e;
1955
1956    /* assert(scp == scp->sc->cur_scp) */
1957
1958    SC_VIDEO_LOCK(scp->sc);
1959
1960#ifndef SC_NO_CUTPASTE
1961    /* remove the previous mouse pointer image if necessary */
1962    if (scp->status & MOUSE_VISIBLE) {
1963	s = scp->mouse_pos;
1964	e = scp->mouse_pos + scp->xsize + 1;
1965	if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN))
1966	    || and_region(&s, &e, scp->start, scp->end)
1967	    || ((scp->status & CURSOR_ENABLED) &&
1968		(scp->cursor_pos != scp->cursor_oldpos) &&
1969		(and_region(&s, &e, scp->cursor_pos, scp->cursor_pos)
1970		 || and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos)))) {
1971	    sc_remove_mouse_image(scp);
1972	    if (scp->end >= scp->xsize*scp->ysize)
1973		scp->end = scp->xsize*scp->ysize - 1;
1974	}
1975    }
1976#endif /* !SC_NO_CUTPASTE */
1977
1978#if 1
1979    /* debug: XXX */
1980    if (scp->end >= scp->xsize*scp->ysize) {
1981	printf("scrn_update(): scp->end %d > size_of_screen!!\n", scp->end);
1982	scp->end = scp->xsize*scp->ysize - 1;
1983    }
1984    if (scp->start < 0) {
1985	printf("scrn_update(): scp->start %d < 0\n", scp->start);
1986	scp->start = 0;
1987    }
1988#endif
1989
1990    /* update screen image */
1991    if (scp->start <= scp->end)  {
1992	if (scp->mouse_cut_end >= 0) {
1993	    /* there is a marked region for cut & paste */
1994	    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
1995		start = scp->mouse_cut_start;
1996		end = scp->mouse_cut_end;
1997	    } else {
1998		start = scp->mouse_cut_end;
1999		end = scp->mouse_cut_start - 1;
2000	    }
2001	    s = start;
2002	    e = end;
2003	    /* does the cut-mark region overlap with the update region? */
2004	    if (and_region(&s, &e, scp->start, scp->end)) {
2005		(*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
2006		s = 0;
2007		e = start - 1;
2008		if (and_region(&s, &e, scp->start, scp->end))
2009		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
2010		s = end + 1;
2011		e = scp->xsize*scp->ysize - 1;
2012		if (and_region(&s, &e, scp->start, scp->end))
2013		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
2014	    } else {
2015		(*scp->rndr->draw)(scp, scp->start,
2016				   scp->end - scp->start + 1, FALSE);
2017	    }
2018	} else {
2019	    (*scp->rndr->draw)(scp, scp->start,
2020			       scp->end - scp->start + 1, FALSE);
2021	}
2022    }
2023
2024    /* we are not to show the cursor and the mouse pointer... */
2025    if (!show_cursor) {
2026        scp->end = 0;
2027        scp->start = scp->xsize*scp->ysize - 1;
2028	SC_VIDEO_UNLOCK(scp->sc);
2029	return;
2030    }
2031
2032    /* update cursor image */
2033    if (scp->status & CURSOR_ENABLED) {
2034	s = scp->start;
2035	e = scp->end;
2036        /* did cursor move since last time ? */
2037        if (scp->cursor_pos != scp->cursor_oldpos) {
2038            /* do we need to remove old cursor image ? */
2039            if (!and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
2040                sc_remove_cursor_image(scp);
2041            sc_draw_cursor_image(scp);
2042        } else {
2043            if (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos))
2044		/* cursor didn't move, but has been overwritten */
2045		sc_draw_cursor_image(scp);
2046	    else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
2047		/* if it's a blinking cursor, update it */
2048		(*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
2049					   sc_inside_cutmark(scp,
2050					       scp->cursor_pos));
2051        }
2052    }
2053
2054#ifndef SC_NO_CUTPASTE
2055    /* update "pseudo" mouse pointer image */
2056    if (scp->sc->flags & SC_MOUSE_ENABLED) {
2057	if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
2058	    scp->status &= ~MOUSE_MOVED;
2059	    sc_draw_mouse_image(scp);
2060	}
2061    }
2062#endif /* SC_NO_CUTPASTE */
2063
2064    scp->end = 0;
2065    scp->start = scp->xsize*scp->ysize - 1;
2066
2067    SC_VIDEO_UNLOCK(scp->sc);
2068}
2069
2070#ifdef DEV_SPLASH
2071static int
2072scsplash_callback(int event, void *arg)
2073{
2074    sc_softc_t *sc;
2075    int error;
2076
2077    sc = (sc_softc_t *)arg;
2078
2079    switch (event) {
2080    case SPLASH_INIT:
2081	if (add_scrn_saver(scsplash_saver) == 0) {
2082	    sc->flags &= ~SC_SAVER_FAILED;
2083	    run_scrn_saver = TRUE;
2084	    if (cold && !(boothowto & RB_VERBOSE)) {
2085		scsplash_stick(TRUE);
2086		(*current_saver)(sc, TRUE);
2087	    }
2088	}
2089	return 0;
2090
2091    case SPLASH_TERM:
2092	if (current_saver == scsplash_saver) {
2093	    scsplash_stick(FALSE);
2094	    error = remove_scrn_saver(scsplash_saver);
2095	    if (error)
2096		return error;
2097	}
2098	return 0;
2099
2100    default:
2101	return EINVAL;
2102    }
2103}
2104
2105static void
2106scsplash_saver(sc_softc_t *sc, int show)
2107{
2108    static int busy = FALSE;
2109    scr_stat *scp;
2110
2111    if (busy)
2112	return;
2113    busy = TRUE;
2114
2115    scp = sc->cur_scp;
2116    if (show) {
2117	if (!(sc->flags & SC_SAVER_FAILED)) {
2118	    if (!(sc->flags & SC_SCRN_BLANKED))
2119		set_scrn_saver_mode(scp, -1, NULL, 0);
2120	    switch (splash(sc->adp, TRUE)) {
2121	    case 0:		/* succeeded */
2122		break;
2123	    case EAGAIN:	/* try later */
2124		restore_scrn_saver_mode(scp, FALSE);
2125		sc_touch_scrn_saver();		/* XXX */
2126		break;
2127	    default:
2128		sc->flags |= SC_SAVER_FAILED;
2129		scsplash_stick(FALSE);
2130		restore_scrn_saver_mode(scp, TRUE);
2131		printf("scsplash_saver(): failed to put up the image\n");
2132		break;
2133	    }
2134	}
2135    } else if (!sticky_splash) {
2136	if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0))
2137	    restore_scrn_saver_mode(scp, TRUE);
2138    }
2139    busy = FALSE;
2140}
2141
2142static int
2143add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2144{
2145#if 0
2146    int error;
2147
2148    if (current_saver != none_saver) {
2149	error = remove_scrn_saver(current_saver);
2150	if (error)
2151	    return error;
2152    }
2153#endif
2154    if (current_saver != none_saver)
2155	return EBUSY;
2156
2157    run_scrn_saver = FALSE;
2158    saver_mode = CONS_LKM_SAVER;
2159    current_saver = this_saver;
2160    return 0;
2161}
2162
2163static int
2164remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2165{
2166    if (current_saver != this_saver)
2167	return EINVAL;
2168
2169#if 0
2170    /*
2171     * In order to prevent `current_saver' from being called by
2172     * the timeout routine `scrn_timer()' while we manipulate
2173     * the saver list, we shall set `current_saver' to `none_saver'
2174     * before stopping the current saver, rather than blocking by `splXX()'.
2175     */
2176    current_saver = none_saver;
2177    if (scrn_blanked)
2178        stop_scrn_saver(this_saver);
2179#endif
2180
2181    /* unblank all blanked screens */
2182    wait_scrn_saver_stop(NULL);
2183    if (scrn_blanked)
2184	return EBUSY;
2185
2186    current_saver = none_saver;
2187    return 0;
2188}
2189
2190static int
2191set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
2192{
2193    int s;
2194
2195    /* assert(scp == scp->sc->cur_scp) */
2196    s = spltty();
2197    if (!ISGRAPHSC(scp))
2198	sc_remove_cursor_image(scp);
2199    scp->splash_save_mode = scp->mode;
2200    scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
2201    scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
2202    scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
2203    scp->sc->flags |= SC_SCRN_BLANKED;
2204    ++scrn_blanked;
2205    splx(s);
2206    if (mode < 0)
2207	return 0;
2208    scp->mode = mode;
2209    if (set_mode(scp) == 0) {
2210	if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
2211	    scp->status |= GRAPHICS_MODE;
2212#ifndef SC_NO_PALETTE_LOADING
2213	if (pal != NULL)
2214	    vidd_load_palette(scp->sc->adp, pal);
2215#endif
2216	sc_set_border(scp, border);
2217	return 0;
2218    } else {
2219	s = spltty();
2220	scp->mode = scp->splash_save_mode;
2221	scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2222	scp->status |= scp->splash_save_status;
2223	splx(s);
2224	return 1;
2225    }
2226}
2227
2228static int
2229restore_scrn_saver_mode(scr_stat *scp, int changemode)
2230{
2231    int mode;
2232    int status;
2233    int s;
2234
2235    /* assert(scp == scp->sc->cur_scp) */
2236    s = spltty();
2237    mode = scp->mode;
2238    status = scp->status;
2239    scp->mode = scp->splash_save_mode;
2240    scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2241    scp->status |= scp->splash_save_status;
2242    scp->sc->flags &= ~SC_SCRN_BLANKED;
2243    if (!changemode) {
2244	if (!ISGRAPHSC(scp))
2245	    sc_draw_cursor_image(scp);
2246	--scrn_blanked;
2247	splx(s);
2248	return 0;
2249    }
2250    if (set_mode(scp) == 0) {
2251#ifndef SC_NO_PALETTE_LOADING
2252#ifdef SC_PIXEL_MODE
2253	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2254	    vidd_load_palette(scp->sc->adp, scp->sc->palette2);
2255	else
2256#endif
2257	vidd_load_palette(scp->sc->adp, scp->sc->palette);
2258#endif
2259	--scrn_blanked;
2260	splx(s);
2261	return 0;
2262    } else {
2263	scp->mode = mode;
2264	scp->status = status;
2265	splx(s);
2266	return 1;
2267    }
2268}
2269
2270static void
2271stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
2272{
2273    (*saver)(sc, FALSE);
2274    run_scrn_saver = FALSE;
2275    /* the screen saver may have chosen not to stop after all... */
2276    if (sc->flags & SC_SCRN_BLANKED)
2277	return;
2278
2279    mark_all(sc->cur_scp);
2280    if (sc->delayed_next_scr)
2281	sc_switch_scr(sc, sc->delayed_next_scr - 1);
2282    if (debugger == 0)
2283	wakeup(&scrn_blanked);
2284}
2285
2286static int
2287wait_scrn_saver_stop(sc_softc_t *sc)
2288{
2289    int error = 0;
2290
2291    while (scrn_blanked > 0) {
2292	run_scrn_saver = FALSE;
2293	if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
2294	    error = 0;
2295	    break;
2296	}
2297	error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
2298	if ((error != 0) && (error != ERESTART))
2299	    break;
2300    }
2301    run_scrn_saver = FALSE;
2302    return error;
2303}
2304#endif /* DEV_SPLASH */
2305
2306void
2307sc_touch_scrn_saver(void)
2308{
2309    scsplash_stick(FALSE);
2310    run_scrn_saver = FALSE;
2311}
2312
2313int
2314sc_switch_scr(sc_softc_t *sc, u_int next_scr)
2315{
2316    scr_stat *cur_scp;
2317    struct tty *tp;
2318    struct proc *p;
2319    int s;
2320
2321    DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
2322
2323    if (sc->cur_scp == NULL)
2324	return (0);
2325
2326    /* prevent switch if previously requested */
2327    if (sc->flags & SC_SCRN_VTYLOCK) {
2328	    sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
2329		sc->cur_scp->bell_duration);
2330	    return EPERM;
2331    }
2332
2333    /* delay switch if the screen is blanked or being updated */
2334    if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress
2335	|| sc->blink_in_progress) {
2336	sc->delayed_next_scr = next_scr + 1;
2337	sc_touch_scrn_saver();
2338	DPRINTF(5, ("switch delayed\n"));
2339	return 0;
2340    }
2341    sc->delayed_next_scr = 0;
2342
2343    s = spltty();
2344    cur_scp = sc->cur_scp;
2345
2346    /* we are in the middle of the vty switching process... */
2347    if (sc->switch_in_progress
2348	&& (cur_scp->smode.mode == VT_PROCESS)
2349	&& cur_scp->proc) {
2350	p = pfind(cur_scp->pid);
2351	if (cur_scp->proc != p) {
2352	    if (p)
2353		PROC_UNLOCK(p);
2354	    /*
2355	     * The controlling process has died!!.  Do some clean up.
2356	     * NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
2357	     * are not reset here yet; they will be cleared later.
2358	     */
2359	    DPRINTF(5, ("cur_scp controlling process %d died, ",
2360	       cur_scp->pid));
2361	    if (cur_scp->status & SWITCH_WAIT_REL) {
2362		/*
2363		 * Force the previous switch to finish, but return now
2364		 * with error.
2365		 */
2366		DPRINTF(5, ("reset WAIT_REL, "));
2367		finish_vt_rel(cur_scp, TRUE, &s);
2368		splx(s);
2369		DPRINTF(5, ("finishing previous switch\n"));
2370		return EINVAL;
2371	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2372		/* let's assume screen switch has been completed. */
2373		DPRINTF(5, ("reset WAIT_ACQ, "));
2374		finish_vt_acq(cur_scp);
2375	    } else {
2376		/*
2377	 	 * We are in between screen release and acquisition, and
2378		 * reached here via scgetc() or scrn_timer() which has
2379		 * interrupted exchange_scr(). Don't do anything stupid.
2380		 */
2381		DPRINTF(5, ("waiting nothing, "));
2382	    }
2383	} else {
2384	    if (p)
2385		PROC_UNLOCK(p);
2386	    /*
2387	     * The controlling process is alive, but not responding...
2388	     * It is either buggy or it may be just taking time.
2389	     * The following code is a gross kludge to cope with this
2390	     * problem for which there is no clean solution. XXX
2391	     */
2392	    if (cur_scp->status & SWITCH_WAIT_REL) {
2393		switch (sc->switch_in_progress++) {
2394		case 1:
2395		    break;
2396		case 2:
2397		    DPRINTF(5, ("sending relsig again, "));
2398		    signal_vt_rel(cur_scp);
2399		    break;
2400		case 3:
2401		    break;
2402		case 4:
2403		default:
2404		    /*
2405		     * Act as if the controlling program returned
2406		     * VT_FALSE.
2407		     */
2408		    DPRINTF(5, ("force reset WAIT_REL, "));
2409		    finish_vt_rel(cur_scp, FALSE, &s);
2410		    splx(s);
2411		    DPRINTF(5, ("act as if VT_FALSE was seen\n"));
2412		    return EINVAL;
2413		}
2414	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2415		switch (sc->switch_in_progress++) {
2416		case 1:
2417		    break;
2418		case 2:
2419		    DPRINTF(5, ("sending acqsig again, "));
2420		    signal_vt_acq(cur_scp);
2421		    break;
2422		case 3:
2423		    break;
2424		case 4:
2425		default:
2426		     /* clear the flag and finish the previous switch */
2427		    DPRINTF(5, ("force reset WAIT_ACQ, "));
2428		    finish_vt_acq(cur_scp);
2429		    break;
2430		}
2431	    }
2432	}
2433    }
2434
2435    /*
2436     * Return error if an invalid argument is given, or vty switch
2437     * is still in progress.
2438     */
2439    if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys)
2440	|| sc->switch_in_progress) {
2441	splx(s);
2442	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2443	DPRINTF(5, ("error 1\n"));
2444	return EINVAL;
2445    }
2446
2447    /*
2448     * Don't allow switching away from the graphics mode vty
2449     * if the switch mode is VT_AUTO, unless the next vty is the same
2450     * as the current or the current vty has been closed (but showing).
2451     */
2452    tp = SC_DEV(sc, cur_scp->index);
2453    if ((cur_scp->index != next_scr)
2454	&& tty_opened_ns(tp)
2455	&& (cur_scp->smode.mode == VT_AUTO)
2456	&& ISGRAPHSC(cur_scp)) {
2457	splx(s);
2458	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2459	DPRINTF(5, ("error, graphics mode\n"));
2460	return EINVAL;
2461    }
2462
2463    /*
2464     * Is the wanted vty open? Don't allow switching to a closed vty.
2465     * If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
2466     * Note that we always allow the user to switch to the kernel
2467     * console even if it is closed.
2468     */
2469    if ((sc_console == NULL) || (next_scr != sc_console->index)) {
2470	tp = SC_DEV(sc, next_scr);
2471	if (!tty_opened_ns(tp)) {
2472	    splx(s);
2473	    sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2474	    DPRINTF(5, ("error 2, requested vty isn't open!\n"));
2475	    return EINVAL;
2476	}
2477	if ((debugger > 0) && (SC_STAT(tp)->smode.mode == VT_PROCESS)) {
2478	    splx(s);
2479	    DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n"));
2480	    return EINVAL;
2481	}
2482    }
2483
2484    /* this is the start of vty switching process... */
2485    ++sc->switch_in_progress;
2486    sc->old_scp = cur_scp;
2487    sc->new_scp = sc_get_stat(SC_DEV(sc, next_scr));
2488    if (sc->new_scp == sc->old_scp) {
2489	sc->switch_in_progress = 0;
2490	/*
2491	 * XXX wakeup() locks the scheduler lock which will hang if
2492	 * the lock is in an in-between state, e.g., when we stop at
2493	 * a breakpoint at fork_exit.  It has always been wrong to call
2494	 * wakeup() when the debugger is active.  In RELENG_4, wakeup()
2495	 * is supposed to be locked by splhigh(), but the debugger may
2496	 * be invoked at splhigh().
2497	 */
2498	if (debugger == 0)
2499	    wakeup(VTY_WCHAN(sc,next_scr));
2500	splx(s);
2501	DPRINTF(5, ("switch done (new == old)\n"));
2502	return 0;
2503    }
2504
2505    /* has controlling process died? */
2506    vt_proc_alive(sc->old_scp);
2507    vt_proc_alive(sc->new_scp);
2508
2509    /* wait for the controlling process to release the screen, if necessary */
2510    if (signal_vt_rel(sc->old_scp)) {
2511	splx(s);
2512	return 0;
2513    }
2514
2515    /* go set up the new vty screen */
2516    splx(s);
2517    exchange_scr(sc);
2518    s = spltty();
2519
2520    /* wake up processes waiting for this vty */
2521    if (debugger == 0)
2522	wakeup(VTY_WCHAN(sc,next_scr));
2523
2524    /* wait for the controlling process to acknowledge, if necessary */
2525    if (signal_vt_acq(sc->cur_scp)) {
2526	splx(s);
2527	return 0;
2528    }
2529
2530    sc->switch_in_progress = 0;
2531    if (sc->unit == sc_console_unit)
2532	cnavailable(sc_consptr,  TRUE);
2533    splx(s);
2534    DPRINTF(5, ("switch done\n"));
2535
2536    return 0;
2537}
2538
2539static int
2540do_switch_scr(sc_softc_t *sc, int s)
2541{
2542    vt_proc_alive(sc->new_scp);
2543
2544    splx(s);
2545    exchange_scr(sc);
2546    s = spltty();
2547    /* sc->cur_scp == sc->new_scp */
2548    wakeup(VTY_WCHAN(sc,sc->cur_scp->index));
2549
2550    /* wait for the controlling process to acknowledge, if necessary */
2551    if (!signal_vt_acq(sc->cur_scp)) {
2552	sc->switch_in_progress = 0;
2553	if (sc->unit == sc_console_unit)
2554	    cnavailable(sc_consptr,  TRUE);
2555    }
2556
2557    return s;
2558}
2559
2560static int
2561vt_proc_alive(scr_stat *scp)
2562{
2563    struct proc *p;
2564
2565    if (scp->proc) {
2566	if ((p = pfind(scp->pid)) != NULL)
2567	    PROC_UNLOCK(p);
2568	if (scp->proc == p)
2569	    return TRUE;
2570	scp->proc = NULL;
2571	scp->smode.mode = VT_AUTO;
2572	DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
2573    }
2574    return FALSE;
2575}
2576
2577static int
2578signal_vt_rel(scr_stat *scp)
2579{
2580    if (scp->smode.mode != VT_PROCESS)
2581	return FALSE;
2582    scp->status |= SWITCH_WAIT_REL;
2583    PROC_LOCK(scp->proc);
2584    kern_psignal(scp->proc, scp->smode.relsig);
2585    PROC_UNLOCK(scp->proc);
2586    DPRINTF(5, ("sending relsig to %d\n", scp->pid));
2587    return TRUE;
2588}
2589
2590static int
2591signal_vt_acq(scr_stat *scp)
2592{
2593    if (scp->smode.mode != VT_PROCESS)
2594	return FALSE;
2595    if (scp->sc->unit == sc_console_unit)
2596	cnavailable(sc_consptr,  FALSE);
2597    scp->status |= SWITCH_WAIT_ACQ;
2598    PROC_LOCK(scp->proc);
2599    kern_psignal(scp->proc, scp->smode.acqsig);
2600    PROC_UNLOCK(scp->proc);
2601    DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
2602    return TRUE;
2603}
2604
2605static int
2606finish_vt_rel(scr_stat *scp, int release, int *s)
2607{
2608    if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
2609	scp->status &= ~SWITCH_WAIT_REL;
2610	if (release)
2611	    *s = do_switch_scr(scp->sc, *s);
2612	else
2613	    scp->sc->switch_in_progress = 0;
2614	return 0;
2615    }
2616    return EINVAL;
2617}
2618
2619static int
2620finish_vt_acq(scr_stat *scp)
2621{
2622    if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
2623	scp->status &= ~SWITCH_WAIT_ACQ;
2624	scp->sc->switch_in_progress = 0;
2625	return 0;
2626    }
2627    return EINVAL;
2628}
2629
2630static void
2631exchange_scr(sc_softc_t *sc)
2632{
2633    scr_stat *scp;
2634
2635    /* save the current state of video and keyboard */
2636    sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
2637    if (!ISGRAPHSC(sc->old_scp))
2638	sc_remove_cursor_image(sc->old_scp);
2639    if (sc->old_scp->kbd_mode == K_XLATE)
2640	save_kbd_state(sc->old_scp);
2641
2642    /* set up the video for the new screen */
2643    scp = sc->cur_scp = sc->new_scp;
2644#ifdef PC98
2645    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp) || ISUNKNOWNSC(sc->new_scp))
2646#else
2647    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
2648#endif
2649	set_mode(scp);
2650#ifndef __sparc64__
2651    else
2652	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2653		    (void *)sc->adp->va_window, FALSE);
2654#endif
2655    scp->status |= MOUSE_HIDDEN;
2656    sc_move_cursor(scp, scp->xpos, scp->ypos);
2657    if (!ISGRAPHSC(scp))
2658	sc_set_cursor_image(scp);
2659#ifndef SC_NO_PALETTE_LOADING
2660    if (ISGRAPHSC(sc->old_scp)) {
2661#ifdef SC_PIXEL_MODE
2662	if (sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2663	    vidd_load_palette(sc->adp, sc->palette2);
2664	else
2665#endif
2666	vidd_load_palette(sc->adp, sc->palette);
2667    }
2668#endif
2669    sc_set_border(scp, scp->border);
2670
2671    /* set up the keyboard for the new screen */
2672    if (sc->old_scp->kbd_mode != scp->kbd_mode)
2673	(void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
2674    update_kbd_state(scp, scp->status, LOCK_MASK);
2675
2676    mark_all(scp);
2677}
2678
2679static void
2680sc_puts(scr_stat *scp, u_char *buf, int len, int kernel)
2681{
2682    int need_unlock = 0;
2683
2684#ifdef DEV_SPLASH
2685    /* make screensaver happy */
2686    if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
2687	run_scrn_saver = FALSE;
2688#endif
2689
2690    if (scp->tsw) {
2691	if (!kdb_active && !mtx_owned(&scp->scr_lock)) {
2692		need_unlock = 1;
2693		mtx_lock_spin(&scp->scr_lock);
2694	}
2695	(*scp->tsw->te_puts)(scp, buf, len, kernel);
2696	if (need_unlock)
2697		mtx_unlock_spin(&scp->scr_lock);
2698    }
2699
2700    if (scp->sc->delayed_next_scr)
2701	sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
2702}
2703
2704void
2705sc_draw_cursor_image(scr_stat *scp)
2706{
2707    /* assert(scp == scp->sc->cur_scp); */
2708    SC_VIDEO_LOCK(scp->sc);
2709    (*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
2710			      scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
2711			      sc_inside_cutmark(scp, scp->cursor_pos));
2712    scp->cursor_oldpos = scp->cursor_pos;
2713    SC_VIDEO_UNLOCK(scp->sc);
2714}
2715
2716void
2717sc_remove_cursor_image(scr_stat *scp)
2718{
2719    /* assert(scp == scp->sc->cur_scp); */
2720    SC_VIDEO_LOCK(scp->sc);
2721    (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
2722			      scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
2723			      sc_inside_cutmark(scp, scp->cursor_oldpos));
2724    SC_VIDEO_UNLOCK(scp->sc);
2725}
2726
2727static void
2728update_cursor_image(scr_stat *scp)
2729{
2730    /* assert(scp == scp->sc->cur_scp); */
2731    sc_remove_cursor_image(scp);
2732    sc_set_cursor_image(scp);
2733    sc_draw_cursor_image(scp);
2734}
2735
2736void
2737sc_set_cursor_image(scr_stat *scp)
2738{
2739    scp->curs_attr.flags = scp->curr_curs_attr.flags;
2740    if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
2741	/* hidden cursor is internally represented as zero-height underline */
2742	scp->curs_attr.flags = CONS_CHAR_CURSOR;
2743	scp->curs_attr.base = scp->curs_attr.height = 0;
2744    } else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
2745	scp->curs_attr.base = imin(scp->curr_curs_attr.base,
2746				  scp->font_size - 1);
2747	scp->curs_attr.height = imin(scp->curr_curs_attr.height,
2748				    scp->font_size - scp->curs_attr.base);
2749    } else {	/* block cursor */
2750	scp->curs_attr.base = 0;
2751	scp->curs_attr.height = scp->font_size;
2752    }
2753
2754    /* assert(scp == scp->sc->cur_scp); */
2755    SC_VIDEO_LOCK(scp->sc);
2756    (*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
2757			     scp->curs_attr.flags & CONS_BLINK_CURSOR);
2758    SC_VIDEO_UNLOCK(scp->sc);
2759}
2760
2761static void
2762change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2763{
2764    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
2765	sc_remove_cursor_image(scp);
2766
2767    if (base >= 0)
2768	scp->curr_curs_attr.base = base;
2769    if (height >= 0)
2770	scp->curr_curs_attr.height = height;
2771    if (flags & CONS_RESET_CURSOR)
2772	scp->curr_curs_attr = scp->dflt_curs_attr;
2773    else
2774	scp->curr_curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2775
2776    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
2777	sc_set_cursor_image(scp);
2778	sc_draw_cursor_image(scp);
2779    }
2780}
2781
2782void
2783sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2784{
2785    sc_softc_t *sc;
2786    struct tty *tp;
2787    int s;
2788    int i;
2789
2790    s = spltty();
2791    if ((flags != -1) && (flags & CONS_LOCAL_CURSOR)) {
2792	/* local (per vty) change */
2793	change_cursor_shape(scp, flags, base, height);
2794	splx(s);
2795	return;
2796    }
2797
2798    /* global change */
2799    sc = scp->sc;
2800    if (base >= 0)
2801	sc->curs_attr.base = base;
2802    if (height >= 0)
2803	sc->curs_attr.height = height;
2804    if (flags != -1) {
2805	if (flags & CONS_RESET_CURSOR)
2806	    sc->curs_attr = sc->dflt_curs_attr;
2807	else
2808	    sc->curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2809    }
2810
2811    for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
2812	if ((tp = SC_DEV(sc, i)) == NULL)
2813	    continue;
2814	if ((scp = sc_get_stat(tp)) == NULL)
2815	    continue;
2816	scp->dflt_curs_attr = sc->curs_attr;
2817	change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
2818    }
2819    splx(s);
2820}
2821
2822static void
2823scinit(int unit, int flags)
2824{
2825
2826    /*
2827     * When syscons is being initialized as the kernel console, malloc()
2828     * is not yet functional, because various kernel structures has not been
2829     * fully initialized yet.  Therefore, we need to declare the following
2830     * static buffers for the console.  This is less than ideal,
2831     * but is necessry evil for the time being.  XXX
2832     */
2833#ifdef PC98
2834    static u_short sc_buffer[ROW*COL*2];/* XXX */
2835#else
2836    static u_short sc_buffer[ROW*COL];	/* XXX */
2837#endif
2838#ifndef SC_NO_FONT_LOADING
2839    static u_char font_8[256*8];
2840    static u_char font_14[256*14];
2841    static u_char font_16[256*16];
2842#endif
2843
2844    sc_softc_t *sc;
2845    scr_stat *scp;
2846    video_adapter_t *adp;
2847    int col;
2848    int row;
2849    int i;
2850
2851    /* one time initialization */
2852    if (init_done == COLD)
2853	sc_get_bios_values(&bios_value);
2854    init_done = WARM;
2855
2856    /*
2857     * Allocate resources.  Even if we are being called for the second
2858     * time, we must allocate them again, because they might have
2859     * disappeared...
2860     */
2861    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2862    if ((sc->flags & SC_INIT_DONE) == 0)
2863	SC_VIDEO_LOCKINIT(sc);
2864
2865    adp = NULL;
2866    if (sc->adapter >= 0) {
2867	vid_release(sc->adp, (void *)&sc->adapter);
2868	adp = sc->adp;
2869	sc->adp = NULL;
2870    }
2871    if (sc->keyboard >= 0) {
2872	DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard));
2873	i = kbd_release(sc->kbd, (void *)&sc->keyboard);
2874	DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
2875	if (sc->kbd != NULL) {
2876	    DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
2877		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2878	}
2879	sc->kbd = NULL;
2880    }
2881    sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
2882    sc->adp = vid_get_adapter(sc->adapter);
2883    /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
2884
2885    sc->keyboard = sc_allocate_keyboard(sc, unit);
2886    DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard));
2887
2888    sc->kbd = kbd_get_keyboard(sc->keyboard);
2889    if (sc->kbd != NULL) {
2890	DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n",
2891		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2892    }
2893
2894    if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
2895
2896	sc->initial_mode = sc->adp->va_initial_mode;
2897
2898#ifndef SC_NO_FONT_LOADING
2899	if (flags & SC_KERNEL_CONSOLE) {
2900	    sc->font_8 = font_8;
2901	    sc->font_14 = font_14;
2902	    sc->font_16 = font_16;
2903	} else if (sc->font_8 == NULL) {
2904	    /* assert(sc_malloc) */
2905	    sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
2906	    sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
2907	    sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
2908	}
2909#endif
2910
2911	/* extract the hardware cursor location and hide the cursor for now */
2912	vidd_read_hw_cursor(sc->adp, &col, &row);
2913	vidd_set_hw_cursor(sc->adp, -1, -1);
2914
2915	/* set up the first console */
2916	sc->first_vty = unit*MAXCONS;
2917	sc->vtys = MAXCONS;		/* XXX: should be configurable */
2918	if (flags & SC_KERNEL_CONSOLE) {
2919	    /*
2920	     * Set up devs structure but don't use it yet, calling make_dev()
2921	     * might panic kernel.  Wait for sc_attach_unit() to actually
2922	     * create the devices.
2923	     */
2924	    sc->dev = main_devs;
2925	    scp = &main_console;
2926	    init_scp(sc, sc->first_vty, scp);
2927	    sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize,
2928			(void *)sc_buffer, FALSE);
2929
2930	    /* move cursors to the initial positions */
2931	    if (col >= scp->xsize)
2932		col = 0;
2933	    if (row >= scp->ysize)
2934		row = scp->ysize - 1;
2935	    scp->xpos = col;
2936	    scp->ypos = row;
2937	    scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col;
2938
2939	    if (sc_init_emulator(scp, SC_DFLT_TERM))
2940		sc_init_emulator(scp, "*");
2941	    (*scp->tsw->te_default_attr)(scp,
2942					 user_default.std_color,
2943					 user_default.rev_color);
2944	} else {
2945	    /* assert(sc_malloc) */
2946	    sc->dev = malloc(sizeof(struct tty *)*sc->vtys, M_DEVBUF,
2947	        M_WAITOK|M_ZERO);
2948	    sc->dev[0] = sc_alloc_tty(0, unit * MAXCONS);
2949	    scp = alloc_scp(sc, sc->first_vty);
2950	    SC_STAT(sc->dev[0]) = scp;
2951	}
2952	sc->cur_scp = scp;
2953
2954#ifndef __sparc64__
2955	/* copy screen to temporary buffer */
2956	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2957		    (void *)scp->sc->adp->va_window, FALSE);
2958	if (ISTEXTSC(scp))
2959	    sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize);
2960#endif
2961
2962	if (bios_value.cursor_end < scp->font_size)
2963	    sc->dflt_curs_attr.base = scp->font_size -
2964					  bios_value.cursor_end - 1;
2965	else
2966	    sc->dflt_curs_attr.base = 0;
2967	i = bios_value.cursor_end - bios_value.cursor_start + 1;
2968	sc->dflt_curs_attr.height = imin(i, scp->font_size);
2969	sc->dflt_curs_attr.flags = 0;
2970	sc->curs_attr = sc->dflt_curs_attr;
2971	scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
2972
2973#ifndef SC_NO_SYSMOUSE
2974	sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2);
2975#endif
2976	if (!ISGRAPHSC(scp)) {
2977    	    sc_set_cursor_image(scp);
2978    	    sc_draw_cursor_image(scp);
2979	}
2980
2981	/* save font and palette */
2982#ifndef SC_NO_FONT_LOADING
2983	sc->fonts_loaded = 0;
2984	if (ISFONTAVAIL(sc->adp->va_flags)) {
2985#ifdef SC_DFLT_FONT
2986	    bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
2987	    bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
2988	    bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
2989	    sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
2990	    if (scp->font_size < 14) {
2991		sc_load_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2992	    } else if (scp->font_size >= 16) {
2993		sc_load_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2994	    } else {
2995		sc_load_font(scp, 0, 14, 8, sc->font_14, 0, 256);
2996	    }
2997#else /* !SC_DFLT_FONT */
2998	    if (scp->font_size < 14) {
2999		sc_save_font(scp, 0, 8, 8, sc->font_8, 0, 256);
3000		sc->fonts_loaded = FONT_8;
3001	    } else if (scp->font_size >= 16) {
3002		sc_save_font(scp, 0, 16, 8, sc->font_16, 0, 256);
3003		sc->fonts_loaded = FONT_16;
3004	    } else {
3005		sc_save_font(scp, 0, 14, 8, sc->font_14, 0, 256);
3006		sc->fonts_loaded = FONT_14;
3007	    }
3008#endif /* SC_DFLT_FONT */
3009	    /* FONT KLUDGE: always use the font page #0. XXX */
3010	    sc_show_font(scp, 0);
3011	}
3012#endif /* !SC_NO_FONT_LOADING */
3013
3014#ifndef SC_NO_PALETTE_LOADING
3015	vidd_save_palette(sc->adp, sc->palette);
3016#ifdef SC_PIXEL_MODE
3017	for (i = 0; i < sizeof(sc->palette2); i++)
3018		sc->palette2[i] = i / 3;
3019#endif
3020#endif
3021
3022#ifdef DEV_SPLASH
3023	if (!(sc->flags & SC_SPLASH_SCRN)) {
3024	    /* we are ready to put up the splash image! */
3025	    splash_init(sc->adp, scsplash_callback, sc);
3026	    sc->flags |= SC_SPLASH_SCRN;
3027	}
3028#endif
3029    }
3030
3031    /* the rest is not necessary, if we have done it once */
3032    if (sc->flags & SC_INIT_DONE)
3033	return;
3034
3035    /* initialize mapscrn arrays to a one to one map */
3036    for (i = 0; i < sizeof(sc->scr_map); i++)
3037	sc->scr_map[i] = sc->scr_rmap[i] = i;
3038#ifdef PC98
3039    sc->scr_map[0x5c] = (u_char)0xfc;	/* for backslash */
3040#endif
3041
3042    sc->flags |= SC_INIT_DONE;
3043}
3044
3045static void
3046scterm(int unit, int flags)
3047{
3048    sc_softc_t *sc;
3049    scr_stat *scp;
3050
3051    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
3052    if (sc == NULL)
3053	return;			/* shouldn't happen */
3054
3055#ifdef DEV_SPLASH
3056    /* this console is no longer available for the splash screen */
3057    if (sc->flags & SC_SPLASH_SCRN) {
3058	splash_term(sc->adp);
3059	sc->flags &= ~SC_SPLASH_SCRN;
3060    }
3061#endif
3062
3063#if 0 /* XXX */
3064    /* move the hardware cursor to the upper-left corner */
3065    vidd_set_hw_cursor(sc->adp, 0, 0);
3066#endif
3067
3068    /* release the keyboard and the video card */
3069    if (sc->keyboard >= 0)
3070	kbd_release(sc->kbd, &sc->keyboard);
3071    if (sc->adapter >= 0)
3072	vid_release(sc->adp, &sc->adapter);
3073
3074    /* stop the terminal emulator, if any */
3075    scp = sc_get_stat(sc->dev[0]);
3076    if (scp->tsw)
3077	(*scp->tsw->te_term)(scp, &scp->ts);
3078    if (scp->ts != NULL)
3079	free(scp->ts, M_DEVBUF);
3080    mtx_destroy(&scp->scr_lock);
3081
3082    /* clear the structure */
3083    if (!(flags & SC_KERNEL_CONSOLE)) {
3084	/* XXX: We need delete_dev() for this */
3085	free(sc->dev, M_DEVBUF);
3086#if 0
3087	/* XXX: We need a ttyunregister for this */
3088	free(sc->tty, M_DEVBUF);
3089#endif
3090#ifndef SC_NO_FONT_LOADING
3091	free(sc->font_8, M_DEVBUF);
3092	free(sc->font_14, M_DEVBUF);
3093	free(sc->font_16, M_DEVBUF);
3094#endif
3095	/* XXX vtb, history */
3096    }
3097    bzero(sc, sizeof(*sc));
3098    sc->keyboard = -1;
3099    sc->adapter = -1;
3100}
3101
3102static void
3103scshutdown(__unused void *arg, __unused int howto)
3104{
3105
3106	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3107	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3108	KASSERT(sc_console->sc->cur_scp != NULL,
3109	    ("sc_console->sc->cur_scp != NULL"));
3110
3111	sc_touch_scrn_saver();
3112	if (!cold &&
3113	    sc_console->sc->cur_scp->index != sc_console->index &&
3114	    sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
3115	    sc_console->smode.mode == VT_AUTO)
3116		sc_switch_scr(sc_console->sc, sc_console->index);
3117	shutdown_in_progress = TRUE;
3118}
3119
3120static void
3121scsuspend(__unused void *arg)
3122{
3123	int retry;
3124
3125	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3126	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3127	KASSERT(sc_console->sc->cur_scp != NULL,
3128	    ("sc_console->sc->cur_scp != NULL"));
3129
3130	sc_susp_scr = sc_console->sc->cur_scp->index;
3131	if (sc_no_suspend_vtswitch ||
3132	    sc_susp_scr == sc_console->index) {
3133		sc_touch_scrn_saver();
3134		sc_susp_scr = -1;
3135		return;
3136	}
3137	for (retry = 0; retry < 10; retry++) {
3138		sc_switch_scr(sc_console->sc, sc_console->index);
3139		if (!sc_console->sc->switch_in_progress)
3140			break;
3141		pause("scsuspend", hz);
3142	}
3143	suspend_in_progress = TRUE;
3144}
3145
3146static void
3147scresume(__unused void *arg)
3148{
3149
3150	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3151	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3152	KASSERT(sc_console->sc->cur_scp != NULL,
3153	    ("sc_console->sc->cur_scp != NULL"));
3154
3155	suspend_in_progress = FALSE;
3156	if (sc_susp_scr < 0) {
3157		update_font(sc_console->sc->cur_scp);
3158		return;
3159	}
3160	sc_switch_scr(sc_console->sc, sc_susp_scr);
3161}
3162
3163int
3164sc_clean_up(scr_stat *scp)
3165{
3166#ifdef DEV_SPLASH
3167    int error;
3168#endif
3169
3170    if (scp->sc->flags & SC_SCRN_BLANKED) {
3171	sc_touch_scrn_saver();
3172#ifdef DEV_SPLASH
3173	if ((error = wait_scrn_saver_stop(scp->sc)))
3174	    return error;
3175#endif
3176    }
3177    scp->status |= MOUSE_HIDDEN;
3178    sc_remove_mouse_image(scp);
3179    sc_remove_cutmarking(scp);
3180    return 0;
3181}
3182
3183void
3184sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
3185{
3186    sc_vtb_t new;
3187    sc_vtb_t old;
3188
3189    old = scp->vtb;
3190    sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
3191    if (!discard && (old.vtb_flags & VTB_VALID)) {
3192	/* retain the current cursor position and buffer contants */
3193	scp->cursor_oldpos = scp->cursor_pos;
3194	/*
3195	 * This works only if the old buffer has the same size as or larger
3196	 * than the new one. XXX
3197	 */
3198	sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize);
3199	scp->vtb = new;
3200    } else {
3201	scp->vtb = new;
3202	sc_vtb_destroy(&old);
3203    }
3204
3205#ifndef SC_NO_SYSMOUSE
3206    /* move the mouse cursor at the center of the screen */
3207    sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
3208#endif
3209}
3210
3211static scr_stat
3212*alloc_scp(sc_softc_t *sc, int vty)
3213{
3214    scr_stat *scp;
3215
3216    /* assert(sc_malloc) */
3217
3218    scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
3219    init_scp(sc, vty, scp);
3220
3221    sc_alloc_scr_buffer(scp, TRUE, TRUE);
3222    if (sc_init_emulator(scp, SC_DFLT_TERM))
3223	sc_init_emulator(scp, "*");
3224
3225#ifndef SC_NO_CUTPASTE
3226    sc_alloc_cut_buffer(scp, TRUE);
3227#endif
3228
3229#ifndef SC_NO_HISTORY
3230    sc_alloc_history_buffer(scp, 0, 0, TRUE);
3231#endif
3232
3233    return scp;
3234}
3235
3236static void
3237init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
3238{
3239    video_info_t info;
3240
3241    bzero(scp, sizeof(*scp));
3242
3243    scp->index = vty;
3244    scp->sc = sc;
3245    scp->status = 0;
3246    scp->mode = sc->initial_mode;
3247    vidd_get_info(sc->adp, scp->mode, &info);
3248    if (info.vi_flags & V_INFO_GRAPHICS) {
3249	scp->status |= GRAPHICS_MODE;
3250	scp->xpixel = info.vi_width;
3251	scp->ypixel = info.vi_height;
3252	scp->xsize = info.vi_width/info.vi_cwidth;
3253	scp->ysize = info.vi_height/info.vi_cheight;
3254	scp->font_size = 0;
3255	scp->font = NULL;
3256    } else {
3257	scp->xsize = info.vi_width;
3258	scp->ysize = info.vi_height;
3259	scp->xpixel = scp->xsize*info.vi_cwidth;
3260	scp->ypixel = scp->ysize*info.vi_cheight;
3261    }
3262
3263    scp->font_size = info.vi_cheight;
3264    scp->font_width = info.vi_cwidth;
3265#ifndef SC_NO_FONT_LOADING
3266    if (info.vi_cheight < 14)
3267	scp->font = sc->font_8;
3268    else if (info.vi_cheight >= 16)
3269	scp->font = sc->font_16;
3270    else
3271	scp->font = sc->font_14;
3272#else
3273    scp->font = NULL;
3274#endif
3275
3276    sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
3277#ifndef __sparc64__
3278    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
3279#endif
3280    scp->xoff = scp->yoff = 0;
3281    scp->xpos = scp->ypos = 0;
3282    scp->start = scp->xsize * scp->ysize - 1;
3283    scp->end = 0;
3284    scp->tsw = NULL;
3285    scp->ts = NULL;
3286    scp->rndr = NULL;
3287    scp->border = (SC_NORM_ATTR >> 4) & 0x0f;
3288    scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3289    scp->mouse_cut_start = scp->xsize*scp->ysize;
3290    scp->mouse_cut_end = -1;
3291    scp->mouse_signal = 0;
3292    scp->mouse_pid = 0;
3293    scp->mouse_proc = NULL;
3294    scp->kbd_mode = K_XLATE;
3295    scp->bell_pitch = bios_value.bell_pitch;
3296    scp->bell_duration = BELL_DURATION;
3297    scp->status |= (bios_value.shift_state & NLKED);
3298    scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
3299    scp->pid = 0;
3300    scp->proc = NULL;
3301    scp->smode.mode = VT_AUTO;
3302    scp->history = NULL;
3303    scp->history_pos = 0;
3304    scp->history_size = 0;
3305
3306    mtx_init(&scp->scr_lock, "scrlock", NULL, MTX_SPIN);
3307}
3308
3309int
3310sc_init_emulator(scr_stat *scp, char *name)
3311{
3312    sc_term_sw_t *sw;
3313    sc_rndr_sw_t *rndr;
3314    void *p;
3315    int error;
3316
3317    if (name == NULL)	/* if no name is given, use the current emulator */
3318	sw = scp->tsw;
3319    else		/* ...otherwise find the named emulator */
3320	sw = sc_term_match(name);
3321    if (sw == NULL)
3322	return EINVAL;
3323
3324    rndr = NULL;
3325    if (strcmp(sw->te_renderer, "*") != 0) {
3326	rndr = sc_render_match(scp, sw->te_renderer,
3327			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3328    }
3329    if (rndr == NULL) {
3330	rndr = sc_render_match(scp, scp->sc->adp->va_name,
3331			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3332	if (rndr == NULL)
3333	    return ENODEV;
3334    }
3335
3336    if (sw == scp->tsw) {
3337	error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
3338	scp->rndr = rndr;
3339	scp->rndr->init(scp);
3340	sc_clear_screen(scp);
3341	/* assert(error == 0); */
3342	return error;
3343    }
3344
3345    if (sc_malloc && (sw->te_size > 0))
3346	p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
3347    else
3348	p = NULL;
3349    error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
3350    if (error)
3351	return error;
3352
3353    if (scp->tsw)
3354	(*scp->tsw->te_term)(scp, &scp->ts);
3355    if (scp->ts != NULL)
3356	free(scp->ts, M_DEVBUF);
3357    scp->tsw = sw;
3358    scp->ts = p;
3359    scp->rndr = rndr;
3360    scp->rndr->init(scp);
3361
3362    /* XXX */
3363    (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color);
3364    sc_clear_screen(scp);
3365
3366    return 0;
3367}
3368
3369/*
3370 * scgetc(flags) - get character from keyboard.
3371 * If flags & SCGETC_CN, then avoid harmful side effects.
3372 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
3373 * return NOKEY if there is nothing there.
3374 */
3375static u_int
3376scgetc(sc_softc_t *sc, u_int flags)
3377{
3378    scr_stat *scp;
3379#ifndef SC_NO_HISTORY
3380    struct tty *tp;
3381#endif
3382    u_int c;
3383    int this_scr;
3384    int f;
3385    int i;
3386
3387    if (sc->kbd == NULL)
3388	return NOKEY;
3389
3390next_code:
3391#if 1
3392    /* I don't like this, but... XXX */
3393    if (flags & SCGETC_CN)
3394	sccnupdate(sc->cur_scp);
3395#endif
3396    scp = sc->cur_scp;
3397    /* first see if there is something in the keyboard port */
3398    for (;;) {
3399	c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
3400	if (c == ERRKEY) {
3401	    if (!(flags & SCGETC_CN))
3402		sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3403	} else if (c == NOKEY)
3404	    return c;
3405	else
3406	    break;
3407    }
3408
3409    /* make screensaver happy */
3410    if (!(c & RELKEY))
3411	sc_touch_scrn_saver();
3412
3413    if (!(flags & SCGETC_CN))
3414	random_harvest_queue(&c, sizeof(c), 1, RANDOM_KEYBOARD);
3415
3416    if (scp->kbd_mode != K_XLATE)
3417	return KEYCHAR(c);
3418
3419    /* if scroll-lock pressed allow history browsing */
3420    if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
3421
3422	scp->status &= ~CURSOR_ENABLED;
3423	sc_remove_cursor_image(scp);
3424
3425#ifndef SC_NO_HISTORY
3426	if (!(scp->status & BUFFER_SAVED)) {
3427	    scp->status |= BUFFER_SAVED;
3428	    sc_hist_save(scp);
3429	}
3430	switch (c) {
3431	/* FIXME: key codes */
3432	case SPCLKEY | FKEY | F(49):  /* home key */
3433	    sc_remove_cutmarking(scp);
3434	    sc_hist_home(scp);
3435	    goto next_code;
3436
3437	case SPCLKEY | FKEY | F(57):  /* end key */
3438	    sc_remove_cutmarking(scp);
3439	    sc_hist_end(scp);
3440	    goto next_code;
3441
3442	case SPCLKEY | FKEY | F(50):  /* up arrow key */
3443	    sc_remove_cutmarking(scp);
3444	    if (sc_hist_up_line(scp))
3445		if (!(flags & SCGETC_CN))
3446		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3447	    goto next_code;
3448
3449	case SPCLKEY | FKEY | F(58):  /* down arrow key */
3450	    sc_remove_cutmarking(scp);
3451	    if (sc_hist_down_line(scp))
3452		if (!(flags & SCGETC_CN))
3453		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3454	    goto next_code;
3455
3456	case SPCLKEY | FKEY | F(51):  /* page up key */
3457	    sc_remove_cutmarking(scp);
3458	    for (i=0; i<scp->ysize; i++)
3459	    if (sc_hist_up_line(scp)) {
3460		if (!(flags & SCGETC_CN))
3461		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3462		break;
3463	    }
3464	    goto next_code;
3465
3466	case SPCLKEY | FKEY | F(59):  /* page down key */
3467	    sc_remove_cutmarking(scp);
3468	    for (i=0; i<scp->ysize; i++)
3469	    if (sc_hist_down_line(scp)) {
3470		if (!(flags & SCGETC_CN))
3471		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3472		break;
3473	    }
3474	    goto next_code;
3475	}
3476#endif /* SC_NO_HISTORY */
3477    }
3478
3479    /*
3480     * Process and consume special keys here.  Return a plain char code
3481     * or a char code with the META flag or a function key code.
3482     */
3483    if (c & RELKEY) {
3484	/* key released */
3485	/* goto next_code */
3486    } else {
3487	/* key pressed */
3488	if (c & SPCLKEY) {
3489	    c &= ~SPCLKEY;
3490	    switch (KEYCHAR(c)) {
3491	    /* LOCKING KEYS */
3492	    case NLK: case CLK: case ALK:
3493		break;
3494	    case SLK:
3495		(void)kbdd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f);
3496		if (f & SLKED) {
3497		    scp->status |= SLKED;
3498		} else {
3499		    if (scp->status & SLKED) {
3500			scp->status &= ~SLKED;
3501#ifndef SC_NO_HISTORY
3502			if (scp->status & BUFFER_SAVED) {
3503			    if (!sc_hist_restore(scp))
3504				sc_remove_cutmarking(scp);
3505			    scp->status &= ~BUFFER_SAVED;
3506			    scp->status |= CURSOR_ENABLED;
3507			    sc_draw_cursor_image(scp);
3508			}
3509			tp = SC_DEV(sc, scp->index);
3510			if (!kdb_active && tty_opened_ns(tp))
3511			    sctty_outwakeup(tp);
3512#endif
3513		    }
3514		}
3515		break;
3516
3517	    case PASTE:
3518#ifndef SC_NO_CUTPASTE
3519		sc_mouse_paste(scp);
3520#endif
3521		break;
3522
3523	    /* NON-LOCKING KEYS */
3524	    case NOP:
3525	    case LSH:  case RSH:  case LCTR: case RCTR:
3526	    case LALT: case RALT: case ASH:  case META:
3527		break;
3528
3529	    case BTAB:
3530		if (!(sc->flags & SC_SCRN_BLANKED))
3531		    return c;
3532		break;
3533
3534	    case SPSC:
3535#ifdef DEV_SPLASH
3536		/* force activatation/deactivation of the screen saver */
3537		if (!(sc->flags & SC_SCRN_BLANKED)) {
3538		    run_scrn_saver = TRUE;
3539		    sc->scrn_time_stamp -= scrn_blank_time;
3540		}
3541		if (cold) {
3542		    /*
3543		     * While devices are being probed, the screen saver need
3544		     * to be invoked explicitly. XXX
3545		     */
3546		    if (sc->flags & SC_SCRN_BLANKED) {
3547			scsplash_stick(FALSE);
3548			stop_scrn_saver(sc, current_saver);
3549		    } else {
3550			if (!ISGRAPHSC(scp)) {
3551			    scsplash_stick(TRUE);
3552			    (*current_saver)(sc, TRUE);
3553			}
3554		    }
3555		}
3556#endif /* DEV_SPLASH */
3557		break;
3558
3559	    case RBT:
3560#ifndef SC_DISABLE_REBOOT
3561		if (enable_reboot)
3562			shutdown_nice(0);
3563#endif
3564		break;
3565
3566	    case HALT:
3567#ifndef SC_DISABLE_REBOOT
3568		if (enable_reboot)
3569			shutdown_nice(RB_HALT);
3570#endif
3571		break;
3572
3573	    case PDWN:
3574#ifndef SC_DISABLE_REBOOT
3575		if (enable_reboot)
3576			shutdown_nice(RB_HALT|RB_POWEROFF);
3577#endif
3578		break;
3579
3580	    case SUSP:
3581		power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
3582		break;
3583	    case STBY:
3584		power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
3585		break;
3586
3587	    case DBG:
3588#ifndef SC_DISABLE_KDBKEY
3589		if (enable_kdbkey)
3590			kdb_break();
3591#endif
3592		break;
3593
3594	    case PNC:
3595		if (enable_panic_key)
3596			panic("Forced by the panic key");
3597		break;
3598
3599	    case NEXT:
3600		this_scr = scp->index;
3601		for (i = (this_scr - sc->first_vty + 1)%sc->vtys;
3602			sc->first_vty + i != this_scr;
3603			i = (i + 1)%sc->vtys) {
3604		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3605		    if (tty_opened_ns(tp)) {
3606			sc_switch_scr(scp->sc, sc->first_vty + i);
3607			break;
3608		    }
3609		}
3610		break;
3611
3612	    case PREV:
3613		this_scr = scp->index;
3614		for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys;
3615			sc->first_vty + i != this_scr;
3616			i = (i + sc->vtys - 1)%sc->vtys) {
3617		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3618		    if (tty_opened_ns(tp)) {
3619			sc_switch_scr(scp->sc, sc->first_vty + i);
3620			break;
3621		    }
3622		}
3623		break;
3624
3625	    default:
3626		if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) {
3627		    sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR);
3628		    break;
3629		}
3630		/* assert(c & FKEY) */
3631		if (!(sc->flags & SC_SCRN_BLANKED))
3632		    return c;
3633		break;
3634	    }
3635	    /* goto next_code */
3636	} else {
3637	    /* regular keys (maybe MKEY is set) */
3638#if !defined(SC_DISABLE_KDBKEY) && defined(KDB)
3639	    if (enable_kdbkey)
3640		kdb_alt_break(c, &sc->sc_altbrk);
3641#endif
3642	    if (!(sc->flags & SC_SCRN_BLANKED))
3643		return c;
3644	}
3645    }
3646
3647    goto next_code;
3648}
3649
3650static int
3651sctty_mmap(struct tty *tp, vm_ooffset_t offset, vm_paddr_t *paddr,
3652    int nprot, vm_memattr_t *memattr)
3653{
3654    scr_stat *scp;
3655
3656    scp = sc_get_stat(tp);
3657    if (scp != scp->sc->cur_scp)
3658	return -1;
3659    return vidd_mmap(scp->sc->adp, offset, paddr, nprot, memattr);
3660}
3661
3662static void
3663update_font(scr_stat *scp)
3664{
3665#ifndef SC_NO_FONT_LOADING
3666    /* load appropriate font */
3667    if (!(scp->status & GRAPHICS_MODE)) {
3668	if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) {
3669	    if (scp->font_size < 14) {
3670		if (scp->sc->fonts_loaded & FONT_8)
3671		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
3672	    } else if (scp->font_size >= 16) {
3673		if (scp->sc->fonts_loaded & FONT_16)
3674		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
3675	    } else {
3676		if (scp->sc->fonts_loaded & FONT_14)
3677		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
3678	    }
3679	    /*
3680	     * FONT KLUDGE:
3681	     * This is an interim kludge to display correct font.
3682	     * Always use the font page #0 on the video plane 2.
3683	     * Somehow we cannot show the font in other font pages on
3684	     * some video cards... XXX
3685	     */
3686	    sc_show_font(scp, 0);
3687	}
3688	mark_all(scp);
3689    }
3690#endif /* !SC_NO_FONT_LOADING */
3691}
3692
3693static int
3694save_kbd_state(scr_stat *scp)
3695{
3696    int state;
3697    int error;
3698
3699    error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3700    if (error == ENOIOCTL)
3701	error = ENODEV;
3702    if (error == 0) {
3703	scp->status &= ~LOCK_MASK;
3704	scp->status |= state;
3705    }
3706    return error;
3707}
3708
3709static int
3710update_kbd_state(scr_stat *scp, int new_bits, int mask)
3711{
3712    int state;
3713    int error;
3714
3715    if (mask != LOCK_MASK) {
3716	error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3717	if (error == ENOIOCTL)
3718	    error = ENODEV;
3719	if (error)
3720	    return error;
3721	state &= ~mask;
3722	state |= new_bits & mask;
3723    } else {
3724	state = new_bits & LOCK_MASK;
3725    }
3726    error = kbdd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
3727    if (error == ENOIOCTL)
3728	error = ENODEV;
3729    return error;
3730}
3731
3732static int
3733update_kbd_leds(scr_stat *scp, int which)
3734{
3735    int error;
3736
3737    which &= LOCK_MASK;
3738    error = kbdd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
3739    if (error == ENOIOCTL)
3740	error = ENODEV;
3741    return error;
3742}
3743
3744int
3745set_mode(scr_stat *scp)
3746{
3747    video_info_t info;
3748
3749    /* reject unsupported mode */
3750    if (vidd_get_info(scp->sc->adp, scp->mode, &info))
3751	return 1;
3752
3753    /* if this vty is not currently showing, do nothing */
3754    if (scp != scp->sc->cur_scp)
3755	return 0;
3756
3757    /* setup video hardware for the given mode */
3758    vidd_set_mode(scp->sc->adp, scp->mode);
3759    scp->rndr->init(scp);
3760#ifndef __sparc64__
3761    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3762		(void *)scp->sc->adp->va_window, FALSE);
3763#endif
3764
3765    update_font(scp);
3766
3767    sc_set_border(scp, scp->border);
3768    sc_set_cursor_image(scp);
3769
3770    return 0;
3771}
3772
3773void
3774sc_set_border(scr_stat *scp, int color)
3775{
3776    SC_VIDEO_LOCK(scp->sc);
3777    (*scp->rndr->draw_border)(scp, color);
3778    SC_VIDEO_UNLOCK(scp->sc);
3779}
3780
3781#ifndef SC_NO_FONT_LOADING
3782void
3783sc_load_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3784	     int base, int count)
3785{
3786    sc_softc_t *sc;
3787
3788    sc = scp->sc;
3789    sc->font_loading_in_progress = TRUE;
3790    vidd_load_font(sc->adp, page, size, width, buf, base, count);
3791    sc->font_loading_in_progress = FALSE;
3792}
3793
3794void
3795sc_save_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3796	     int base, int count)
3797{
3798    sc_softc_t *sc;
3799
3800    sc = scp->sc;
3801    sc->font_loading_in_progress = TRUE;
3802    vidd_save_font(sc->adp, page, size, width, buf, base, count);
3803    sc->font_loading_in_progress = FALSE;
3804}
3805
3806void
3807sc_show_font(scr_stat *scp, int page)
3808{
3809    vidd_show_font(scp->sc->adp, page);
3810}
3811#endif /* !SC_NO_FONT_LOADING */
3812
3813void
3814sc_paste(scr_stat *scp, const u_char *p, int count)
3815{
3816    struct tty *tp;
3817    u_char *rmap;
3818
3819    tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3820    if (!tty_opened_ns(tp))
3821	return;
3822    rmap = scp->sc->scr_rmap;
3823    for (; count > 0; --count)
3824	ttydisc_rint(tp, rmap[*p++], 0);
3825    ttydisc_rint_done(tp);
3826}
3827
3828void
3829sc_respond(scr_stat *scp, const u_char *p, int count, int wakeup)
3830{
3831    struct tty *tp;
3832
3833    tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3834    if (!tty_opened_ns(tp))
3835	return;
3836    ttydisc_rint_simple(tp, p, count);
3837    if (wakeup) {
3838	/* XXX: we can't always call ttydisc_rint_done() here! */
3839	ttydisc_rint_done(tp);
3840    }
3841}
3842
3843void
3844sc_bell(scr_stat *scp, int pitch, int duration)
3845{
3846    if (cold || shutdown_in_progress || !enable_bell)
3847	return;
3848
3849    if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
3850	return;
3851
3852    if (scp->sc->flags & SC_VISUAL_BELL) {
3853	if (scp->sc->blink_in_progress)
3854	    return;
3855	scp->sc->blink_in_progress = 3;
3856	if (scp != scp->sc->cur_scp)
3857	    scp->sc->blink_in_progress += 2;
3858	blink_screen(scp->sc->cur_scp);
3859    } else if (duration != 0 && pitch != 0) {
3860	if (scp != scp->sc->cur_scp)
3861	    pitch *= 2;
3862	sysbeep(1193182 / pitch, duration);
3863    }
3864}
3865
3866static void
3867blink_screen(void *arg)
3868{
3869    scr_stat *scp = arg;
3870    struct tty *tp;
3871
3872    if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
3873	scp->sc->blink_in_progress = 0;
3874    	mark_all(scp);
3875	tp = SC_DEV(scp->sc, scp->index);
3876	if (tty_opened_ns(tp))
3877	    sctty_outwakeup(tp);
3878	if (scp->sc->delayed_next_scr)
3879	    sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
3880    }
3881    else {
3882	(*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize,
3883			   scp->sc->blink_in_progress & 1);
3884	scp->sc->blink_in_progress--;
3885	callout_reset_sbt(&scp->sc->cblink, SBT_1S / 15, 0,
3886	    blink_screen, scp, C_PREL(0));
3887    }
3888}
3889
3890/*
3891 * Until sc_attach_unit() gets called no dev structures will be available
3892 * to store the per-screen current status.  This is the case when the
3893 * kernel is initially booting and needs access to its console.  During
3894 * this early phase of booting the console's current status is kept in
3895 * one statically defined scr_stat structure, and any pointers to the
3896 * dev structures will be NULL.
3897 */
3898
3899static scr_stat *
3900sc_get_stat(struct tty *tp)
3901{
3902	if (tp == NULL)
3903		return (&main_console);
3904	return (SC_STAT(tp));
3905}
3906
3907/*
3908 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and,
3909 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for
3910 * any keyboard.
3911 */
3912
3913static int
3914sc_allocate_keyboard(sc_softc_t *sc, int unit)
3915{
3916	int		 idx0, idx;
3917	keyboard_t	*k0, *k;
3918	keyboard_info_t	 ki;
3919
3920	idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc);
3921	if (idx0 != -1) {
3922		k0 = kbd_get_keyboard(idx0);
3923
3924		for (idx = kbd_find_keyboard2("*", -1, 0);
3925		     idx != -1;
3926		     idx = kbd_find_keyboard2("*", -1, idx + 1)) {
3927			k = kbd_get_keyboard(idx);
3928
3929			if (idx == idx0 || KBD_IS_BUSY(k))
3930				continue;
3931
3932			bzero(&ki, sizeof(ki));
3933			strcpy(ki.kb_name, k->kb_name);
3934			ki.kb_unit = k->kb_unit;
3935
3936			(void)kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
3937		}
3938	} else
3939		idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc);
3940
3941	return (idx0);
3942}
3943