syscons.c revision 239696 
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 239696 2012-08-25 23:59:31Z gonzo $");
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
157TUNABLE_INT("hw.syscons.sc_no_suspend_vtswitch", &sc_no_suspend_vtswitch);
158SYSCTL_INT(_hw_syscons, OID_AUTO, sc_no_suspend_vtswitch, CTLFLAG_RW,
159    &sc_no_suspend_vtswitch, 0, "Disable VT switch before suspend.");
160#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
161#include "font.h"
162#endif
163
164	tsw_ioctl_t	*sc_user_ioctl;
165
166static	bios_values_t	bios_value;
167
168static	int		enable_panic_key;
169SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
170	   0, "Enable panic via keypress specified in kbdmap(5)");
171
172#define SC_CONSOLECTL	255
173
174#define VTY_WCHAN(sc, vty) (&SC_DEV(sc, vty))
175
176static	int		debugger;
177
178/* prototypes */
179static int sc_allocate_keyboard(sc_softc_t *sc, int unit);
180static int scvidprobe(int unit, int flags, int cons);
181static int sckbdprobe(int unit, int flags, int cons);
182static void scmeminit(void *arg);
183static int scdevtounit(struct tty *tp);
184static kbd_callback_func_t sckbdevent;
185static void scinit(int unit, int flags);
186static scr_stat *sc_get_stat(struct tty *tp);
187static void scterm(int unit, int flags);
188static void scshutdown(void *, int);
189static void scsuspend(void *);
190static void scresume(void *);
191static u_int scgetc(sc_softc_t *sc, u_int flags);
192static void sc_puts(scr_stat *scp, u_char *buf, int len, int kernel);
193#define SCGETC_CN	1
194#define SCGETC_NONBLOCK	2
195static void sccnupdate(scr_stat *scp);
196static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
197static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
198static timeout_t scrn_timer;
199static int and_region(int *s1, int *e1, int s2, int e2);
200static void scrn_update(scr_stat *scp, int show_cursor);
201
202#ifdef DEV_SPLASH
203static int scsplash_callback(int event, void *arg);
204static void scsplash_saver(sc_softc_t *sc, int show);
205static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
206static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
207static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border);
208static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
209static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
210static int wait_scrn_saver_stop(sc_softc_t *sc);
211#define scsplash_stick(stick)		(sticky_splash = (stick))
212#else /* !DEV_SPLASH */
213#define scsplash_stick(stick)
214#endif /* DEV_SPLASH */
215
216static int do_switch_scr(sc_softc_t *sc, int s);
217static int vt_proc_alive(scr_stat *scp);
218static int signal_vt_rel(scr_stat *scp);
219static int signal_vt_acq(scr_stat *scp);
220static int finish_vt_rel(scr_stat *scp, int release, int *s);
221static int finish_vt_acq(scr_stat *scp);
222static void exchange_scr(sc_softc_t *sc);
223static void update_cursor_image(scr_stat *scp);
224static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
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;
256
257static struct cdevsw consolectl_devsw = {
258	.d_version	= D_VERSION,
259	.d_flags	= D_NEEDGIANT,
260	.d_ioctl	= consolectl_ioctl,
261	.d_name		= "consolectl",
262};
263
264int
265sc_probe_unit(int unit, int flags)
266{
267    if (!scvidprobe(unit, flags, FALSE)) {
268	if (bootverbose)
269	    printf("%s%d: no video adapter found.\n", SC_DRIVER_NAME, unit);
270	return ENXIO;
271    }
272
273    /* syscons will be attached even when there is no keyboard */
274    sckbdprobe(unit, flags, FALSE);
275
276    return 0;
277}
278
279/* probe video adapters, return TRUE if found */
280static int
281scvidprobe(int unit, int flags, int cons)
282{
283    /*
284     * Access the video adapter driver through the back door!
285     * Video adapter drivers need to be configured before syscons.
286     * However, when syscons is being probed as the low-level console,
287     * they have not been initialized yet.  We force them to initialize
288     * themselves here. XXX
289     */
290    vid_configure(cons ? VIO_PROBE_ONLY : 0);
291
292    return (vid_find_adapter("*", unit) >= 0);
293}
294
295/* probe the keyboard, return TRUE if found */
296static int
297sckbdprobe(int unit, int flags, int cons)
298{
299    /* access the keyboard driver through the backdoor! */
300    kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
301
302    return (kbd_find_keyboard("*", unit) >= 0);
303}
304
305static char
306*adapter_name(video_adapter_t *adp)
307{
308    static struct {
309	int type;
310	char *name[2];
311    } names[] = {
312	{ KD_MONO,	{ "MDA",	"MDA" } },
313	{ KD_HERCULES,	{ "Hercules",	"Hercules" } },
314	{ KD_CGA,	{ "CGA",	"CGA" } },
315	{ KD_EGA,	{ "EGA",	"EGA (mono)" } },
316	{ KD_VGA,	{ "VGA",	"VGA (mono)" } },
317	{ KD_PC98,	{ "PC-98x1",	"PC-98x1" } },
318	{ KD_TGA,	{ "TGA",	"TGA" } },
319	{ -1,		{ "Unknown",	"Unknown" } },
320    };
321    int i;
322
323    for (i = 0; names[i].type != -1; ++i)
324	if (names[i].type == adp->va_type)
325	    break;
326    return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
327}
328
329static void
330sctty_outwakeup(struct tty *tp)
331{
332    size_t len;
333    u_char buf[PCBURST];
334    scr_stat *scp = sc_get_stat(tp);
335
336    if (scp->status & SLKED ||
337	(scp == scp->sc->cur_scp && scp->sc->blink_in_progress))
338	return;
339
340    for (;;) {
341	len = ttydisc_getc(tp, buf, sizeof buf);
342	if (len == 0)
343	    break;
344	sc_puts(scp, buf, len, 0);
345    }
346}
347
348static struct tty *
349sc_alloc_tty(int index, int devnum)
350{
351	struct sc_ttysoftc *stc;
352	struct tty *tp;
353
354	/* Allocate TTY object and softc to store unit number. */
355	stc = malloc(sizeof(struct sc_ttysoftc), M_DEVBUF, M_WAITOK);
356	stc->st_index = index;
357	stc->st_stat = NULL;
358	tp = tty_alloc_mutex(&sc_ttydevsw, stc, &Giant);
359
360	/* Create device node. */
361	tty_makedev(tp, NULL, "v%r", devnum);
362
363	return (tp);
364}
365
366#ifdef SC_PIXEL_MODE
367static void
368sc_set_vesa_mode(scr_stat *scp, sc_softc_t *sc, int unit)
369{
370	video_info_t info;
371	u_char *font;
372	int depth;
373	int fontsize;
374	int i;
375	int vmode;
376
377	vmode = 0;
378	(void)resource_int_value("sc", unit, "vesa_mode", &vmode);
379	if (vmode < M_VESA_BASE || vmode > M_VESA_MODE_MAX ||
380	    vidd_get_info(sc->adp, vmode, &info) != 0 ||
381	    !sc_support_pixel_mode(&info))
382		vmode = 0;
383
384	/*
385	 * If the mode is unset or unsupported, search for an available
386	 * 800x600 graphics mode with the highest color depth.
387	 */
388	if (vmode == 0) {
389		for (depth = 0, i = M_VESA_BASE; i <= M_VESA_MODE_MAX; i++)
390			if (vidd_get_info(sc->adp, i, &info) == 0 &&
391			    info.vi_width == 800 && info.vi_height == 600 &&
392			    sc_support_pixel_mode(&info) &&
393			    info.vi_depth > depth) {
394				vmode = i;
395				depth = info.vi_depth;
396			}
397		if (vmode == 0)
398			return;
399		vidd_get_info(sc->adp, vmode, &info);
400	}
401
402#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
403	fontsize = info.vi_cheight;
404#else
405	fontsize = scp->font_size;
406#endif
407	if (fontsize < 14)
408		fontsize = 8;
409	else if (fontsize >= 16)
410		fontsize = 16;
411	else
412		fontsize = 14;
413#ifndef SC_NO_FONT_LOADING
414	switch (fontsize) {
415	case 8:
416		if ((sc->fonts_loaded & FONT_8) == 0)
417			return;
418		font = sc->font_8;
419		break;
420	case 14:
421		if ((sc->fonts_loaded & FONT_14) == 0)
422			return;
423		font = sc->font_14;
424		break;
425	case 16:
426		if ((sc->fonts_loaded & FONT_16) == 0)
427			return;
428		font = sc->font_16;
429		break;
430	}
431#else
432	font = NULL;
433#endif
434#ifdef DEV_SPLASH
435	if ((sc->flags & SC_SPLASH_SCRN) != 0)
436		splash_term(sc->adp);
437#endif
438#ifndef SC_NO_HISTORY
439	if (scp->history != NULL) {
440		sc_vtb_append(&scp->vtb, 0, scp->history,
441		    scp->ypos * scp->xsize + scp->xpos);
442		scp->history_pos = sc_vtb_tail(scp->history);
443	}
444#endif
445	vidd_set_mode(sc->adp, vmode);
446	scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
447	scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
448	scp->xpixel = info.vi_width;
449	scp->ypixel = info.vi_height;
450	scp->xsize = scp->xpixel / 8;
451	scp->ysize = scp->ypixel / fontsize;
452	scp->xpos = 0;
453	scp->ypos = scp->ysize - 1;
454	scp->xoff = scp->yoff = 0;
455	scp->font = font;
456	scp->font_size = fontsize;
457	scp->font_width = 8;
458	scp->start = scp->xsize * scp->ysize - 1;
459	scp->end = 0;
460	scp->cursor_pos = scp->cursor_oldpos = scp->xsize * scp->xsize;
461	scp->mode = sc->initial_mode = vmode;
462#ifndef __sparc64__
463	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
464	    (void *)sc->adp->va_window, FALSE);
465#endif
466	sc_alloc_scr_buffer(scp, FALSE, FALSE);
467	sc_init_emulator(scp, NULL);
468#ifndef SC_NO_CUTPASTE
469	sc_alloc_cut_buffer(scp, FALSE);
470#endif
471#ifndef SC_NO_HISTORY
472	sc_alloc_history_buffer(scp, 0, 0, FALSE);
473#endif
474	sc_set_border(scp, scp->border);
475	sc_set_cursor_image(scp);
476	scp->status &= ~UNKNOWN_MODE;
477#ifdef DEV_SPLASH
478	if ((sc->flags & SC_SPLASH_SCRN) != 0)
479		splash_init(sc->adp, scsplash_callback, sc);
480#endif
481}
482#endif
483
484int
485sc_attach_unit(int unit, int flags)
486{
487    sc_softc_t *sc;
488    scr_stat *scp;
489    struct cdev *dev;
490    int vc;
491
492    flags &= ~SC_KERNEL_CONSOLE;
493
494    if (sc_console_unit == unit) {
495	/*
496	 * If this unit is being used as the system console, we need to
497	 * adjust some variables and buffers before and after scinit().
498	 */
499	/* assert(sc_console != NULL) */
500	flags |= SC_KERNEL_CONSOLE;
501	scmeminit(NULL);
502    }
503    scinit(unit, flags);
504
505    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
506    sc->config = flags;
507    scp = sc_get_stat(sc->dev[0]);
508    if (sc_console == NULL)	/* sc_console_unit < 0 */
509	sc_console = scp;
510
511#ifdef SC_PIXEL_MODE
512    if ((sc->config & SC_VESAMODE) != 0)
513	sc_set_vesa_mode(scp, sc, unit);
514#endif /* SC_PIXEL_MODE */
515
516    /* initialize cursor */
517    if (!ISGRAPHSC(scp))
518    	update_cursor_image(scp);
519
520    /* get screen update going */
521    scrn_timer(sc);
522
523    /* set up the keyboard */
524    (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
525    update_kbd_state(scp, scp->status, LOCK_MASK);
526
527    printf("%s%d: %s <%d virtual consoles, flags=0x%x>\n",
528	   SC_DRIVER_NAME, unit, adapter_name(sc->adp), sc->vtys, sc->config);
529    if (bootverbose) {
530	printf("%s%d:", SC_DRIVER_NAME, unit);
531    	if (sc->adapter >= 0)
532	    printf(" fb%d", sc->adapter);
533	if (sc->keyboard >= 0)
534	    printf(", kbd%d", sc->keyboard);
535	if (scp->tsw)
536	    printf(", terminal emulator: %s (%s)",
537		   scp->tsw->te_name, scp->tsw->te_desc);
538	printf("\n");
539    }
540
541    /* Register suspend/resume/shutdown callbacks for the kernel console. */
542    if (sc_console_unit == unit) {
543	EVENTHANDLER_REGISTER(power_suspend, scsuspend, NULL,
544			      EVENTHANDLER_PRI_ANY);
545	EVENTHANDLER_REGISTER(power_resume, scresume, NULL,
546			      EVENTHANDLER_PRI_ANY);
547	EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown, NULL,
548			      SHUTDOWN_PRI_DEFAULT);
549    }
550
551    for (vc = 0; vc < sc->vtys; vc++) {
552	if (sc->dev[vc] == NULL) {
553		sc->dev[vc] = sc_alloc_tty(vc, vc + unit * MAXCONS);
554		if (vc == 0 && sc->dev == main_devs)
555			SC_STAT(sc->dev[0]) = &main_console;
556	}
557	/*
558	 * The first vty already has struct tty and scr_stat initialized
559	 * in scinit().  The other vtys will have these structs when
560	 * first opened.
561	 */
562    }
563
564    dev = make_dev(&consolectl_devsw, 0, UID_ROOT, GID_WHEEL, 0600,
565        "consolectl");
566    dev->si_drv1 = sc->dev[0];
567
568    return 0;
569}
570
571static void
572scmeminit(void *arg)
573{
574    if (sc_malloc)
575	return;
576    sc_malloc = TRUE;
577
578    /*
579     * As soon as malloc() becomes functional, we had better allocate
580     * various buffers for the kernel console.
581     */
582
583    if (sc_console_unit < 0)	/* sc_console == NULL */
584	return;
585
586    /* copy the temporary buffer to the final buffer */
587    sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
588
589#ifndef SC_NO_CUTPASTE
590    sc_alloc_cut_buffer(sc_console, FALSE);
591#endif
592
593#ifndef SC_NO_HISTORY
594    /* initialize history buffer & pointers */
595    sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
596#endif
597}
598
599/* XXX */
600SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
601
602static int
603scdevtounit(struct tty *tp)
604{
605    int vty = SC_VTY(tp);
606
607    if (vty == SC_CONSOLECTL)
608	return ((sc_console != NULL) ? sc_console->sc->unit : -1);
609    else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit()))
610	return -1;
611    else
612	return vty/MAXCONS;
613}
614
615static int
616sctty_open(struct tty *tp)
617{
618    int unit = scdevtounit(tp);
619    sc_softc_t *sc;
620    scr_stat *scp;
621#ifndef __sparc64__
622    keyarg_t key;
623#endif
624
625    DPRINTF(5, ("scopen: dev:%s, unit:%d, vty:%d\n",
626		devtoname(tp->t_dev), unit, SC_VTY(tp)));
627
628    sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
629    if (sc == NULL)
630	return ENXIO;
631
632    if (!tty_opened(tp)) {
633        /* Use the current setting of the <-- key as default VERASE. */
634        /* If the Delete key is preferable, an stty is necessary     */
635#ifndef __sparc64__
636	if (sc->kbd != NULL) {
637	    key.keynum = KEYCODE_BS;
638	    (void)kbdd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
639            tp->t_termios.c_cc[VERASE] = key.key.map[0];
640	}
641#endif
642    }
643
644    scp = sc_get_stat(tp);
645    if (scp == NULL) {
646	scp = SC_STAT(tp) = alloc_scp(sc, SC_VTY(tp));
647	if (ISGRAPHSC(scp))
648	    sc_set_pixel_mode(scp, NULL, 0, 0, 16, 8);
649    }
650    if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
651	tp->t_winsize.ws_col = scp->xsize;
652	tp->t_winsize.ws_row = scp->ysize;
653    }
654
655    return (0);
656}
657
658static void
659sctty_close(struct tty *tp)
660{
661    scr_stat *scp;
662    int s;
663
664    if (SC_VTY(tp) != SC_CONSOLECTL) {
665	scp = sc_get_stat(tp);
666	/* were we in the middle of the VT switching process? */
667	DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
668	s = spltty();
669	if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit))
670	    cnavailable(sc_consptr, TRUE);
671	if (finish_vt_rel(scp, TRUE, &s) == 0)	/* force release */
672	    DPRINTF(5, ("reset WAIT_REL, "));
673	if (finish_vt_acq(scp) == 0)		/* force acknowledge */
674	    DPRINTF(5, ("reset WAIT_ACQ, "));
675#ifdef not_yet_done
676	if (scp == &main_console) {
677	    scp->pid = 0;
678	    scp->proc = NULL;
679	    scp->smode.mode = VT_AUTO;
680	}
681	else {
682	    sc_vtb_destroy(&scp->vtb);
683#ifndef __sparc64__
684	    sc_vtb_destroy(&scp->scr);
685#endif
686	    sc_free_history_buffer(scp, scp->ysize);
687	    SC_STAT(tp) = NULL;
688	    free(scp, M_DEVBUF);
689	}
690#else
691	scp->pid = 0;
692	scp->proc = NULL;
693	scp->smode.mode = VT_AUTO;
694#endif
695	scp->kbd_mode = K_XLATE;
696	if (scp == scp->sc->cur_scp)
697	    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
698	DPRINTF(5, ("done.\n"));
699    }
700}
701
702#if 0 /* XXX mpsafetty: fix screensaver. What about outwakeup? */
703static int
704scread(struct cdev *dev, struct uio *uio, int flag)
705{
706    if (!sc_saver_keyb_only)
707	sc_touch_scrn_saver();
708    return ttyread(dev, uio, flag);
709}
710#endif
711
712static int
713sckbdevent(keyboard_t *thiskbd, int event, void *arg)
714{
715    sc_softc_t *sc;
716    struct tty *cur_tty;
717    int c, error = 0;
718    size_t len;
719    const u_char *cp;
720
721    sc = (sc_softc_t *)arg;
722    /* assert(thiskbd == sc->kbd) */
723
724    mtx_lock(&Giant);
725
726    switch (event) {
727    case KBDIO_KEYINPUT:
728	break;
729    case KBDIO_UNLOADING:
730	sc->kbd = NULL;
731	sc->keyboard = -1;
732	kbd_release(thiskbd, (void *)&sc->keyboard);
733	goto done;
734    default:
735	error = EINVAL;
736	goto done;
737    }
738
739    /*
740     * Loop while there is still input to get from the keyboard.
741     * I don't think this is nessesary, and it doesn't fix
742     * the Xaccel-2.1 keyboard hang, but it can't hurt.		XXX
743     */
744    while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) {
745
746	cur_tty = SC_DEV(sc, sc->cur_scp->index);
747	if (!tty_opened_ns(cur_tty))
748	    continue;
749
750	if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
751	    continue;
752
753	switch (KEYFLAGS(c)) {
754	case 0x0000: /* normal key */
755	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
756	    break;
757	case FKEY:  /* function key, return string */
758	    cp = (*sc->cur_scp->tsw->te_fkeystr)(sc->cur_scp, c);
759	    if (cp != NULL) {
760	    	ttydisc_rint_simple(cur_tty, cp, strlen(cp));
761		break;
762	    }
763	    cp = kbdd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
764	    if (cp != NULL)
765	    	ttydisc_rint_simple(cur_tty, cp, len);
766	    break;
767	case MKEY:  /* meta is active, prepend ESC */
768	    ttydisc_rint(cur_tty, 0x1b, 0);
769	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
770	    break;
771	case BKEY:  /* backtab fixed sequence (esc [ Z) */
772	    ttydisc_rint_simple(cur_tty, "\x1B[Z", 3);
773	    break;
774	}
775
776	ttydisc_rint_done(cur_tty);
777    }
778
779    sc->cur_scp->status |= MOUSE_HIDDEN;
780
781done:
782    mtx_unlock(&Giant);
783    return (error);
784}
785
786static int
787sctty_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
788{
789    int error;
790    int i;
791    sc_softc_t *sc;
792    scr_stat *scp;
793    int s;
794#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
795    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
796    int ival;
797#endif
798
799    /* If there is a user_ioctl function call that first */
800    if (sc_user_ioctl) {
801	error = (*sc_user_ioctl)(tp, cmd, data, td);
802	if (error != ENOIOCTL)
803	    return error;
804    }
805
806    error = sc_vid_ioctl(tp, cmd, data, td);
807    if (error != ENOIOCTL)
808	return error;
809
810#ifndef SC_NO_HISTORY
811    error = sc_hist_ioctl(tp, cmd, data, td);
812    if (error != ENOIOCTL)
813	return error;
814#endif
815
816#ifndef SC_NO_SYSMOUSE
817    error = sc_mouse_ioctl(tp, cmd, data, td);
818    if (error != ENOIOCTL)
819	return error;
820#endif
821
822    scp = sc_get_stat(tp);
823    /* assert(scp != NULL) */
824    /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
825    sc = scp->sc;
826
827    if (scp->tsw) {
828	error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, td);
829	if (error != ENOIOCTL)
830	    return error;
831    }
832
833    switch (cmd) {  		/* process console hardware related ioctl's */
834
835    case GIO_ATTR:      	/* get current attributes */
836	/* this ioctl is not processed here, but in the terminal emulator */
837	return ENOTTY;
838
839    case GIO_COLOR:     	/* is this a color console ? */
840	*(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
841	return 0;
842
843    case CONS_BLANKTIME:    	/* set screen saver timeout (0 = no saver) */
844	if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
845            return EINVAL;
846	s = spltty();
847	scrn_blank_time = *(int *)data;
848	run_scrn_saver = (scrn_blank_time != 0);
849	splx(s);
850	return 0;
851
852    case CONS_CURSORTYPE:   	/* set cursor type (obsolete) */
853	s = spltty();
854	*(int *)data &= CONS_CURSOR_ATTRS;
855	sc_change_cursor_shape(scp, *(int *)data, -1, -1);
856	splx(s);
857	return 0;
858
859    case CONS_GETCURSORSHAPE:   /* get cursor shape (new interface) */
860	if (((int *)data)[0] & CONS_LOCAL_CURSOR) {
861	    ((int *)data)[0] = scp->curr_curs_attr.flags;
862	    ((int *)data)[1] = scp->curr_curs_attr.base;
863	    ((int *)data)[2] = scp->curr_curs_attr.height;
864	} else {
865	    ((int *)data)[0] = sc->curs_attr.flags;
866	    ((int *)data)[1] = sc->curs_attr.base;
867	    ((int *)data)[2] = sc->curs_attr.height;
868	}
869	return 0;
870
871    case CONS_SETCURSORSHAPE:   /* set cursor shape (new interface) */
872	s = spltty();
873	sc_change_cursor_shape(scp, ((int *)data)[0],
874	    ((int *)data)[1], ((int *)data)[2]);
875	splx(s);
876	return 0;
877
878    case CONS_BELLTYPE: 	/* set bell type sound/visual */
879	if ((*(int *)data) & CONS_VISUAL_BELL)
880	    sc->flags |= SC_VISUAL_BELL;
881	else
882	    sc->flags &= ~SC_VISUAL_BELL;
883	if ((*(int *)data) & CONS_QUIET_BELL)
884	    sc->flags |= SC_QUIET_BELL;
885	else
886	    sc->flags &= ~SC_QUIET_BELL;
887	return 0;
888
889    case CONS_GETINFO:  	/* get current (virtual) console info */
890    {
891	vid_info_t *ptr = (vid_info_t*)data;
892	if (ptr->size == sizeof(struct vid_info)) {
893	    ptr->m_num = sc->cur_scp->index;
894	    ptr->font_size = scp->font_size;
895	    ptr->mv_col = scp->xpos;
896	    ptr->mv_row = scp->ypos;
897	    ptr->mv_csz = scp->xsize;
898	    ptr->mv_rsz = scp->ysize;
899	    ptr->mv_hsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
900	    /*
901	     * The following fields are filled by the terminal emulator. XXX
902	     *
903	     * ptr->mv_norm.fore
904	     * ptr->mv_norm.back
905	     * ptr->mv_rev.fore
906	     * ptr->mv_rev.back
907	     */
908	    ptr->mv_grfc.fore = 0;      /* not supported */
909	    ptr->mv_grfc.back = 0;      /* not supported */
910	    ptr->mv_ovscan = scp->border;
911	    if (scp == sc->cur_scp)
912		save_kbd_state(scp);
913	    ptr->mk_keylock = scp->status & LOCK_MASK;
914	    return 0;
915	}
916	return EINVAL;
917    }
918
919    case CONS_GETVERS:  	/* get version number */
920	*(int*)data = 0x200;    /* version 2.0 */
921	return 0;
922
923    case CONS_IDLE:		/* see if the screen has been idle */
924	/*
925	 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
926	 * the user process may have been writing something on the
927	 * screen and syscons is not aware of it. Declare the screen
928	 * is NOT idle if it is in one of these modes. But there is
929	 * an exception to it; if a screen saver is running in the
930	 * graphics mode in the current screen, we should say that the
931	 * screen has been idle.
932	 */
933	*(int *)data = (sc->flags & SC_SCRN_IDLE)
934		       && (!ISGRAPHSC(sc->cur_scp)
935			   || (sc->cur_scp->status & SAVER_RUNNING));
936	return 0;
937
938    case CONS_SAVERMODE:	/* set saver mode */
939	switch(*(int *)data) {
940	case CONS_NO_SAVER:
941	case CONS_USR_SAVER:
942	    /* if a LKM screen saver is running, stop it first. */
943	    scsplash_stick(FALSE);
944	    saver_mode = *(int *)data;
945	    s = spltty();
946#ifdef DEV_SPLASH
947	    if ((error = wait_scrn_saver_stop(NULL))) {
948		splx(s);
949		return error;
950	    }
951#endif
952	    run_scrn_saver = TRUE;
953	    if (saver_mode == CONS_USR_SAVER)
954		scp->status |= SAVER_RUNNING;
955	    else
956		scp->status &= ~SAVER_RUNNING;
957	    scsplash_stick(TRUE);
958	    splx(s);
959	    break;
960	case CONS_LKM_SAVER:
961	    s = spltty();
962	    if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING))
963		scp->status &= ~SAVER_RUNNING;
964	    saver_mode = *(int *)data;
965	    splx(s);
966	    break;
967	default:
968	    return EINVAL;
969	}
970	return 0;
971
972    case CONS_SAVERSTART:	/* immediately start/stop the screen saver */
973	/*
974	 * Note that this ioctl does not guarantee the screen saver
975	 * actually starts or stops. It merely attempts to do so...
976	 */
977	s = spltty();
978	run_scrn_saver = (*(int *)data != 0);
979	if (run_scrn_saver)
980	    sc->scrn_time_stamp -= scrn_blank_time;
981	splx(s);
982	return 0;
983
984    case CONS_SCRSHOT:		/* get a screen shot */
985    {
986	int retval, hist_rsz;
987	size_t lsize, csize;
988	vm_offset_t frbp, hstp;
989	unsigned lnum;
990	scrshot_t *ptr = (scrshot_t *)data;
991	void *outp = ptr->buf;
992
993	if (ptr->x < 0 || ptr->y < 0 || ptr->xsize < 0 || ptr->ysize < 0)
994		return EINVAL;
995	s = spltty();
996	if (ISGRAPHSC(scp)) {
997	    splx(s);
998	    return EOPNOTSUPP;
999	}
1000	hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
1001	if (((u_int)ptr->x + ptr->xsize) > scp->xsize ||
1002	    ((u_int)ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
1003	    splx(s);
1004	    return EINVAL;
1005	}
1006
1007	lsize = scp->xsize * sizeof(u_int16_t);
1008	csize = ptr->xsize * sizeof(u_int16_t);
1009	/* Pointer to the last line of framebuffer */
1010	frbp = scp->vtb.vtb_buffer + scp->ysize * lsize + ptr->x *
1011	       sizeof(u_int16_t);
1012	/* Pointer to the last line of target buffer */
1013	outp = (char *)outp + ptr->ysize * csize;
1014	/* Pointer to the last line of history buffer */
1015	if (scp->history != NULL)
1016	    hstp = scp->history->vtb_buffer + sc_vtb_tail(scp->history) *
1017		sizeof(u_int16_t) + ptr->x * sizeof(u_int16_t);
1018	else
1019	    hstp = 0;
1020
1021	retval = 0;
1022	for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
1023	    if (lnum < scp->ysize) {
1024		frbp -= lsize;
1025	    } else {
1026		hstp -= lsize;
1027		if (hstp < scp->history->vtb_buffer)
1028		    hstp += scp->history->vtb_rows * lsize;
1029		frbp = hstp;
1030	    }
1031	    if (lnum < ptr->y)
1032		continue;
1033	    outp = (char *)outp - csize;
1034	    retval = copyout((void *)frbp, outp, csize);
1035	    if (retval != 0)
1036		break;
1037	}
1038	splx(s);
1039	return retval;
1040    }
1041
1042    case VT_SETMODE:    	/* set screen switcher mode */
1043    {
1044	struct vt_mode *mode;
1045	struct proc *p1;
1046
1047	mode = (struct vt_mode *)data;
1048	DPRINTF(5, ("%s%d: VT_SETMODE ", SC_DRIVER_NAME, sc->unit));
1049	if (scp->smode.mode == VT_PROCESS) {
1050	    p1 = pfind(scp->pid);
1051    	    if (scp->proc == p1 && scp->proc != td->td_proc) {
1052		if (p1)
1053		    PROC_UNLOCK(p1);
1054		DPRINTF(5, ("error EPERM\n"));
1055		return EPERM;
1056	    }
1057	    if (p1)
1058		PROC_UNLOCK(p1);
1059	}
1060	s = spltty();
1061	if (mode->mode == VT_AUTO) {
1062	    scp->smode.mode = VT_AUTO;
1063	    scp->proc = NULL;
1064	    scp->pid = 0;
1065	    DPRINTF(5, ("VT_AUTO, "));
1066	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
1067		cnavailable(sc_consptr, TRUE);
1068	    /* were we in the middle of the vty switching process? */
1069	    if (finish_vt_rel(scp, TRUE, &s) == 0)
1070		DPRINTF(5, ("reset WAIT_REL, "));
1071	    if (finish_vt_acq(scp) == 0)
1072		DPRINTF(5, ("reset WAIT_ACQ, "));
1073	} else {
1074	    if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig)
1075		|| !ISSIGVALID(mode->frsig)) {
1076		splx(s);
1077		DPRINTF(5, ("error EINVAL\n"));
1078		return EINVAL;
1079	    }
1080	    DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
1081	    bcopy(data, &scp->smode, sizeof(struct vt_mode));
1082	    scp->proc = td->td_proc;
1083	    scp->pid = scp->proc->p_pid;
1084	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
1085		cnavailable(sc_consptr, FALSE);
1086	}
1087	splx(s);
1088	DPRINTF(5, ("\n"));
1089	return 0;
1090    }
1091
1092    case VT_GETMODE:    	/* get screen switcher mode */
1093	bcopy(&scp->smode, data, sizeof(struct vt_mode));
1094	return 0;
1095
1096#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1097    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1098    case _IO('v', 4):
1099	ival = IOCPARM_IVAL(data);
1100	data = (caddr_t)&ival;
1101	/* FALLTHROUGH */
1102#endif
1103    case VT_RELDISP:    	/* screen switcher ioctl */
1104	s = spltty();
1105	/*
1106	 * This must be the current vty which is in the VT_PROCESS
1107	 * switching mode...
1108	 */
1109	if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
1110	    splx(s);
1111	    return EINVAL;
1112	}
1113	/* ...and this process is controlling it. */
1114	if (scp->proc != td->td_proc) {
1115	    splx(s);
1116	    return EPERM;
1117	}
1118	error = EINVAL;
1119	switch(*(int *)data) {
1120	case VT_FALSE:  	/* user refuses to release screen, abort */
1121	    if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
1122		DPRINTF(5, ("%s%d: VT_FALSE\n", SC_DRIVER_NAME, sc->unit));
1123	    break;
1124	case VT_TRUE:   	/* user has released screen, go on */
1125	    if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
1126		DPRINTF(5, ("%s%d: VT_TRUE\n", SC_DRIVER_NAME, sc->unit));
1127	    break;
1128	case VT_ACKACQ: 	/* acquire acknowledged, switch completed */
1129	    if ((error = finish_vt_acq(scp)) == 0)
1130		DPRINTF(5, ("%s%d: VT_ACKACQ\n", SC_DRIVER_NAME, sc->unit));
1131	    break;
1132	default:
1133	    break;
1134	}
1135	splx(s);
1136	return error;
1137
1138    case VT_OPENQRY:    	/* return free virtual console */
1139	for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
1140	    tp = SC_DEV(sc, i);
1141	    if (!tty_opened_ns(tp)) {
1142		*(int *)data = i + 1;
1143		return 0;
1144	    }
1145	}
1146	return EINVAL;
1147
1148#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1149    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1150    case _IO('v', 5):
1151	ival = IOCPARM_IVAL(data);
1152	data = (caddr_t)&ival;
1153	/* FALLTHROUGH */
1154#endif
1155    case VT_ACTIVATE:   	/* switch to screen *data */
1156	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1157	s = spltty();
1158	error = sc_clean_up(sc->cur_scp);
1159	splx(s);
1160	if (error)
1161	    return error;
1162	error = sc_switch_scr(sc, i);
1163	return (error);
1164
1165#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1166    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1167    case _IO('v', 6):
1168	ival = IOCPARM_IVAL(data);
1169	data = (caddr_t)&ival;
1170	/* FALLTHROUGH */
1171#endif
1172    case VT_WAITACTIVE: 	/* wait for switch to occur */
1173	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1174	if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
1175	    return EINVAL;
1176	if (i == sc->cur_scp->index)
1177	    return 0;
1178	error = tsleep(VTY_WCHAN(sc, i), (PZERO + 1) | PCATCH, "waitvt", 0);
1179	return error;
1180
1181    case VT_GETACTIVE:		/* get active vty # */
1182	*(int *)data = sc->cur_scp->index + 1;
1183	return 0;
1184
1185    case VT_GETINDEX:		/* get this vty # */
1186	*(int *)data = scp->index + 1;
1187	return 0;
1188
1189    case VT_LOCKSWITCH:		/* prevent vty switching */
1190	if ((*(int *)data) & 0x01)
1191	    sc->flags |= SC_SCRN_VTYLOCK;
1192	else
1193	    sc->flags &= ~SC_SCRN_VTYLOCK;
1194	return 0;
1195
1196    case KDENABIO:      	/* allow io operations */
1197	error = priv_check(td, PRIV_IO);
1198	if (error != 0)
1199	    return error;
1200	error = securelevel_gt(td->td_ucred, 0);
1201	if (error != 0)
1202		return error;
1203#ifdef __i386__
1204	td->td_frame->tf_eflags |= PSL_IOPL;
1205#elif defined(__amd64__)
1206	td->td_frame->tf_rflags |= PSL_IOPL;
1207#endif
1208	return 0;
1209
1210    case KDDISABIO:     	/* disallow io operations (default) */
1211#ifdef __i386__
1212	td->td_frame->tf_eflags &= ~PSL_IOPL;
1213#elif defined(__amd64__)
1214	td->td_frame->tf_rflags &= ~PSL_IOPL;
1215#endif
1216	return 0;
1217
1218#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1219    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1220    case _IO('K', 20):
1221	ival = IOCPARM_IVAL(data);
1222	data = (caddr_t)&ival;
1223	/* FALLTHROUGH */
1224#endif
1225    case KDSKBSTATE:    	/* set keyboard state (locks) */
1226	if (*(int *)data & ~LOCK_MASK)
1227	    return EINVAL;
1228	scp->status &= ~LOCK_MASK;
1229	scp->status |= *(int *)data;
1230	if (scp == sc->cur_scp)
1231	    update_kbd_state(scp, scp->status, LOCK_MASK);
1232	return 0;
1233
1234    case KDGKBSTATE:    	/* get keyboard state (locks) */
1235	if (scp == sc->cur_scp)
1236	    save_kbd_state(scp);
1237	*(int *)data = scp->status & LOCK_MASK;
1238	return 0;
1239
1240    case KDGETREPEAT:      	/* get keyboard repeat & delay rates */
1241    case KDSETREPEAT:      	/* set keyboard repeat & delay rates (new) */
1242	error = kbdd_ioctl(sc->kbd, cmd, data);
1243	if (error == ENOIOCTL)
1244	    error = ENODEV;
1245	return error;
1246
1247#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1248    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1249    case _IO('K', 67):
1250	ival = IOCPARM_IVAL(data);
1251	data = (caddr_t)&ival;
1252	/* FALLTHROUGH */
1253#endif
1254    case KDSETRAD:      	/* set keyboard repeat & delay rates (old) */
1255	if (*(int *)data & ~0x7f)
1256	    return EINVAL;
1257	error = kbdd_ioctl(sc->kbd, KDSETRAD, data);
1258	if (error == ENOIOCTL)
1259	    error = ENODEV;
1260	return error;
1261
1262#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1263    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1264    case _IO('K', 7):
1265	ival = IOCPARM_IVAL(data);
1266	data = (caddr_t)&ival;
1267	/* FALLTHROUGH */
1268#endif
1269    case KDSKBMODE:     	/* set keyboard mode */
1270	switch (*(int *)data) {
1271	case K_XLATE:   	/* switch to XLT ascii mode */
1272	case K_RAW: 		/* switch to RAW scancode mode */
1273	case K_CODE: 		/* switch to CODE mode */
1274	    scp->kbd_mode = *(int *)data;
1275	    if (scp == sc->cur_scp)
1276		(void)kbdd_ioctl(sc->kbd, KDSKBMODE, data);
1277	    return 0;
1278	default:
1279	    return EINVAL;
1280	}
1281	/* NOT REACHED */
1282
1283    case KDGKBMODE:     	/* get keyboard mode */
1284	*(int *)data = scp->kbd_mode;
1285	return 0;
1286
1287    case KDGKBINFO:
1288	error = kbdd_ioctl(sc->kbd, cmd, data);
1289	if (error == ENOIOCTL)
1290	    error = ENODEV;
1291	return error;
1292
1293#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1294    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1295    case _IO('K', 8):
1296	ival = IOCPARM_IVAL(data);
1297	data = (caddr_t)&ival;
1298	/* FALLTHROUGH */
1299#endif
1300    case KDMKTONE:      	/* sound the bell */
1301	if (*(int*)data)
1302	    sc_bell(scp, (*(int*)data)&0xffff,
1303		    (((*(int*)data)>>16)&0xffff)*hz/1000);
1304	else
1305	    sc_bell(scp, scp->bell_pitch, scp->bell_duration);
1306	return 0;
1307
1308#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1309    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1310    case _IO('K', 63):
1311	ival = IOCPARM_IVAL(data);
1312	data = (caddr_t)&ival;
1313	/* FALLTHROUGH */
1314#endif
1315    case KIOCSOUND:     	/* make tone (*data) hz */
1316	if (scp == sc->cur_scp) {
1317	    if (*(int *)data)
1318		return sc_tone(*(int *)data);
1319	    else
1320		return sc_tone(0);
1321	}
1322	return 0;
1323
1324    case KDGKBTYPE:     	/* get keyboard type */
1325	error = kbdd_ioctl(sc->kbd, cmd, data);
1326	if (error == ENOIOCTL) {
1327	    /* always return something? XXX */
1328	    *(int *)data = 0;
1329	}
1330	return 0;
1331
1332#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1333    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1334    case _IO('K', 66):
1335	ival = IOCPARM_IVAL(data);
1336	data = (caddr_t)&ival;
1337	/* FALLTHROUGH */
1338#endif
1339    case KDSETLED:      	/* set keyboard LED status */
1340	if (*(int *)data & ~LED_MASK)	/* FIXME: LOCK_MASK? */
1341	    return EINVAL;
1342	scp->status &= ~LED_MASK;
1343	scp->status |= *(int *)data;
1344	if (scp == sc->cur_scp)
1345	    update_kbd_leds(scp, scp->status);
1346	return 0;
1347
1348    case KDGETLED:      	/* get keyboard LED status */
1349	if (scp == sc->cur_scp)
1350	    save_kbd_state(scp);
1351	*(int *)data = scp->status & LED_MASK;
1352	return 0;
1353
1354    case KBADDKBD:		/* add/remove keyboard to/from mux */
1355    case KBRELKBD:
1356	error = kbdd_ioctl(sc->kbd, cmd, data);
1357	if (error == ENOIOCTL)
1358	    error = ENODEV;
1359	return error;
1360
1361#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1362    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1363    case _IO('c', 110):
1364	ival = IOCPARM_IVAL(data);
1365	data = (caddr_t)&ival;
1366	/* FALLTHROUGH */
1367#endif
1368    case CONS_SETKBD: 		/* set the new keyboard */
1369	{
1370	    keyboard_t *newkbd;
1371
1372	    s = spltty();
1373	    newkbd = kbd_get_keyboard(*(int *)data);
1374	    if (newkbd == NULL) {
1375		splx(s);
1376		return EINVAL;
1377	    }
1378	    error = 0;
1379	    if (sc->kbd != newkbd) {
1380		i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
1381				 (void *)&sc->keyboard, sckbdevent, sc);
1382		/* i == newkbd->kb_index */
1383		if (i >= 0) {
1384		    if (sc->kbd != NULL) {
1385			save_kbd_state(sc->cur_scp);
1386			kbd_release(sc->kbd, (void *)&sc->keyboard);
1387		    }
1388		    sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */
1389		    sc->keyboard = i;
1390		    (void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1391			      (caddr_t)&sc->cur_scp->kbd_mode);
1392		    update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1393				     LOCK_MASK);
1394		} else {
1395		    error = EPERM;	/* XXX */
1396		}
1397	    }
1398	    splx(s);
1399	    return error;
1400	}
1401
1402    case CONS_RELKBD: 		/* release the current keyboard */
1403	s = spltty();
1404	error = 0;
1405	if (sc->kbd != NULL) {
1406	    save_kbd_state(sc->cur_scp);
1407	    error = kbd_release(sc->kbd, (void *)&sc->keyboard);
1408	    if (error == 0) {
1409		sc->kbd = NULL;
1410		sc->keyboard = -1;
1411	    }
1412	}
1413	splx(s);
1414	return error;
1415
1416    case CONS_GETTERM:		/* get the current terminal emulator info */
1417	{
1418	    sc_term_sw_t *sw;
1419
1420	    if (((term_info_t *)data)->ti_index == 0) {
1421		sw = scp->tsw;
1422	    } else {
1423		sw = sc_term_match_by_number(((term_info_t *)data)->ti_index);
1424	    }
1425	    if (sw != NULL) {
1426		strncpy(((term_info_t *)data)->ti_name, sw->te_name,
1427			sizeof(((term_info_t *)data)->ti_name));
1428		strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
1429			sizeof(((term_info_t *)data)->ti_desc));
1430		((term_info_t *)data)->ti_flags = 0;
1431		return 0;
1432	    } else {
1433		((term_info_t *)data)->ti_name[0] = '\0';
1434		((term_info_t *)data)->ti_desc[0] = '\0';
1435		((term_info_t *)data)->ti_flags = 0;
1436		return EINVAL;
1437	    }
1438	}
1439
1440    case CONS_SETTERM:		/* set the current terminal emulator */
1441	s = spltty();
1442	error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
1443	/* FIXME: what if scp == sc_console! XXX */
1444	splx(s);
1445	return error;
1446
1447    case GIO_SCRNMAP:   	/* get output translation table */
1448	bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
1449	return 0;
1450
1451    case PIO_SCRNMAP:   	/* set output translation table */
1452	bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
1453	for (i=0; i<sizeof(sc->scr_map); i++) {
1454	    sc->scr_rmap[sc->scr_map[i]] = i;
1455	}
1456	return 0;
1457
1458    case GIO_KEYMAP:		/* get keyboard translation table */
1459    case PIO_KEYMAP:		/* set keyboard translation table */
1460    case OGIO_KEYMAP:		/* get keyboard translation table (compat) */
1461    case OPIO_KEYMAP:		/* set keyboard translation table (compat) */
1462    case GIO_DEADKEYMAP:	/* get accent key translation table */
1463    case PIO_DEADKEYMAP:	/* set accent key translation table */
1464    case GETFKEY:		/* get function key string */
1465    case SETFKEY:		/* set function key string */
1466	error = kbdd_ioctl(sc->kbd, cmd, data);
1467	if (error == ENOIOCTL)
1468	    error = ENODEV;
1469	return error;
1470
1471#ifndef SC_NO_FONT_LOADING
1472
1473    case PIO_FONT8x8:   	/* set 8x8 dot font */
1474	if (!ISFONTAVAIL(sc->adp->va_flags))
1475	    return ENXIO;
1476	bcopy(data, sc->font_8, 8*256);
1477	sc->fonts_loaded |= FONT_8;
1478	/*
1479	 * FONT KLUDGE
1480	 * Always use the font page #0. XXX
1481	 * Don't load if the current font size is not 8x8.
1482	 */
1483	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
1484	    sc_load_font(sc->cur_scp, 0, 8, 8, sc->font_8, 0, 256);
1485	return 0;
1486
1487    case GIO_FONT8x8:   	/* get 8x8 dot font */
1488	if (!ISFONTAVAIL(sc->adp->va_flags))
1489	    return ENXIO;
1490	if (sc->fonts_loaded & FONT_8) {
1491	    bcopy(sc->font_8, data, 8*256);
1492	    return 0;
1493	}
1494	else
1495	    return ENXIO;
1496
1497    case PIO_FONT8x14:  	/* set 8x14 dot font */
1498	if (!ISFONTAVAIL(sc->adp->va_flags))
1499	    return ENXIO;
1500	bcopy(data, sc->font_14, 14*256);
1501	sc->fonts_loaded |= FONT_14;
1502	/*
1503	 * FONT KLUDGE
1504	 * Always use the font page #0. XXX
1505	 * Don't load if the current font size is not 8x14.
1506	 */
1507	if (ISTEXTSC(sc->cur_scp)
1508	    && (sc->cur_scp->font_size >= 14)
1509	    && (sc->cur_scp->font_size < 16))
1510	    sc_load_font(sc->cur_scp, 0, 14, 8, sc->font_14, 0, 256);
1511	return 0;
1512
1513    case GIO_FONT8x14:  	/* get 8x14 dot font */
1514	if (!ISFONTAVAIL(sc->adp->va_flags))
1515	    return ENXIO;
1516	if (sc->fonts_loaded & FONT_14) {
1517	    bcopy(sc->font_14, data, 14*256);
1518	    return 0;
1519	}
1520	else
1521	    return ENXIO;
1522
1523    case PIO_FONT8x16:  	/* set 8x16 dot font */
1524	if (!ISFONTAVAIL(sc->adp->va_flags))
1525	    return ENXIO;
1526	bcopy(data, sc->font_16, 16*256);
1527	sc->fonts_loaded |= FONT_16;
1528	/*
1529	 * FONT KLUDGE
1530	 * Always use the font page #0. XXX
1531	 * Don't load if the current font size is not 8x16.
1532	 */
1533	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
1534	    sc_load_font(sc->cur_scp, 0, 16, 8, sc->font_16, 0, 256);
1535	return 0;
1536
1537    case GIO_FONT8x16:  	/* get 8x16 dot font */
1538	if (!ISFONTAVAIL(sc->adp->va_flags))
1539	    return ENXIO;
1540	if (sc->fonts_loaded & FONT_16) {
1541	    bcopy(sc->font_16, data, 16*256);
1542	    return 0;
1543	}
1544	else
1545	    return ENXIO;
1546
1547#endif /* SC_NO_FONT_LOADING */
1548
1549    default:
1550	break;
1551    }
1552
1553    return (ENOIOCTL);
1554}
1555
1556static int
1557consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
1558    struct thread *td)
1559{
1560
1561	return sctty_ioctl(dev->si_drv1, cmd, data, td);
1562}
1563
1564static void
1565sc_cnprobe(struct consdev *cp)
1566{
1567    int unit;
1568    int flags;
1569
1570    cp->cn_pri = sc_get_cons_priority(&unit, &flags);
1571
1572    /* a video card is always required */
1573    if (!scvidprobe(unit, flags, TRUE))
1574	cp->cn_pri = CN_DEAD;
1575
1576    /* syscons will become console even when there is no keyboard */
1577    sckbdprobe(unit, flags, TRUE);
1578
1579    if (cp->cn_pri == CN_DEAD)
1580	return;
1581
1582    /* initialize required fields */
1583    strcpy(cp->cn_name, "ttyv0");
1584}
1585
1586static void
1587sc_cninit(struct consdev *cp)
1588{
1589    int unit;
1590    int flags;
1591
1592    sc_get_cons_priority(&unit, &flags);
1593    scinit(unit, flags | SC_KERNEL_CONSOLE);
1594    sc_console_unit = unit;
1595    sc_console = sc_get_stat(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1596    sc_consptr = cp;
1597}
1598
1599static void
1600sc_cnterm(struct consdev *cp)
1601{
1602    /* we are not the kernel console any more, release everything */
1603
1604    if (sc_console_unit < 0)
1605	return;			/* shouldn't happen */
1606
1607#if 0 /* XXX */
1608    sc_clear_screen(sc_console);
1609    sccnupdate(sc_console);
1610#endif
1611
1612    scterm(sc_console_unit, SC_KERNEL_CONSOLE);
1613    sc_console_unit = -1;
1614    sc_console = NULL;
1615}
1616
1617static void
1618sc_cngrab(struct consdev *cp)
1619{
1620    scr_stat *scp;
1621
1622    if (!cold &&
1623	sc_console->sc->cur_scp->index != sc_console->index &&
1624	sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
1625	sc_console->smode.mode == VT_AUTO)
1626	    sc_switch_scr(sc_console->sc, sc_console->index);
1627
1628    scp = sc_console->sc->cur_scp;
1629
1630    if (scp->sc->kbd == NULL)
1631	return;
1632
1633    if (scp->grabbed++ > 0)
1634	return;
1635
1636    /*
1637     * Make sure the keyboard is accessible even when the kbd device
1638     * driver is disabled.
1639     */
1640    kbdd_enable(scp->sc->kbd);
1641
1642    /* we shall always use the keyboard in the XLATE mode here */
1643    scp->kbd_prev_mode = scp->kbd_mode;
1644    scp->kbd_mode = K_XLATE;
1645    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1646
1647    kbdd_poll(scp->sc->kbd, TRUE);
1648}
1649
1650static void
1651sc_cnungrab(struct consdev *cp)
1652{
1653    scr_stat *scp;
1654
1655    scp = sc_console->sc->cur_scp;	/* XXX */
1656    if (scp->sc->kbd == NULL)
1657	return;
1658
1659    if (--scp->grabbed > 0)
1660	return;
1661
1662    kbdd_poll(scp->sc->kbd, FALSE);
1663
1664    scp->kbd_mode = scp->kbd_prev_mode;
1665    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1666    kbdd_disable(scp->sc->kbd);
1667}
1668
1669static void
1670sc_cnputc(struct consdev *cd, int c)
1671{
1672    u_char buf[1];
1673    scr_stat *scp = sc_console;
1674#ifndef SC_NO_HISTORY
1675#if 0
1676    struct tty *tp;
1677#endif
1678#endif /* !SC_NO_HISTORY */
1679    int s;
1680
1681    /* assert(sc_console != NULL) */
1682
1683#ifndef SC_NO_HISTORY
1684    if (scp == scp->sc->cur_scp && scp->status & SLKED) {
1685	scp->status &= ~SLKED;
1686	update_kbd_state(scp, scp->status, SLKED);
1687	if (scp->status & BUFFER_SAVED) {
1688	    if (!sc_hist_restore(scp))
1689		sc_remove_cutmarking(scp);
1690	    scp->status &= ~BUFFER_SAVED;
1691	    scp->status |= CURSOR_ENABLED;
1692	    sc_draw_cursor_image(scp);
1693	}
1694#if 0
1695	/*
1696	 * XXX: Now that TTY's have their own locks, we cannot process
1697	 * any data after disabling scroll lock. cnputs already holds a
1698	 * spinlock.
1699	 */
1700	tp = SC_DEV(scp->sc, scp->index);
1701	/* XXX "tp" can be NULL */
1702	tty_lock(tp);
1703	if (tty_opened(tp))
1704	    sctty_outwakeup(tp);
1705	tty_unlock(tp);
1706#endif
1707    }
1708#endif /* !SC_NO_HISTORY */
1709
1710    buf[0] = c;
1711    sc_puts(scp, buf, 1, 1);
1712
1713    s = spltty();	/* block sckbdevent and scrn_timer */
1714    sccnupdate(scp);
1715    splx(s);
1716}
1717
1718static int
1719sc_cngetc(struct consdev *cd)
1720{
1721    static struct fkeytab fkey;
1722    static int fkeycp;
1723    scr_stat *scp;
1724    const u_char *p;
1725    int s = spltty();	/* block sckbdevent and scrn_timer while we poll */
1726    int c;
1727
1728    /* assert(sc_console != NULL) */
1729
1730    /*
1731     * Stop the screen saver and update the screen if necessary.
1732     * What if we have been running in the screen saver code... XXX
1733     */
1734    sc_touch_scrn_saver();
1735    scp = sc_console->sc->cur_scp;	/* XXX */
1736    sccnupdate(scp);
1737
1738    if (fkeycp < fkey.len) {
1739	splx(s);
1740	return fkey.str[fkeycp++];
1741    }
1742
1743    if (scp->sc->kbd == NULL) {
1744	splx(s);
1745	return -1;
1746    }
1747
1748    c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK);
1749
1750    switch (KEYFLAGS(c)) {
1751    case 0:	/* normal char */
1752	return KEYCHAR(c);
1753    case FKEY:	/* function key */
1754	p = (*scp->tsw->te_fkeystr)(scp, c);
1755	if (p != NULL) {
1756	    fkey.len = strlen(p);
1757	    bcopy(p, fkey.str, fkey.len);
1758	    fkeycp = 1;
1759	    return fkey.str[0];
1760	}
1761	p = kbdd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
1762	fkey.len = fkeycp;
1763	if ((p != NULL) && (fkey.len > 0)) {
1764	    bcopy(p, fkey.str, fkey.len);
1765	    fkeycp = 1;
1766	    return fkey.str[0];
1767	}
1768	return c;	/* XXX */
1769    case NOKEY:
1770    case ERRKEY:
1771    default:
1772	return -1;
1773    }
1774    /* NOT REACHED */
1775}
1776
1777static void
1778sccnupdate(scr_stat *scp)
1779{
1780    /* this is a cut-down version of scrn_timer()... */
1781
1782    if (suspend_in_progress || scp->sc->font_loading_in_progress)
1783	return;
1784
1785    if (debugger > 0 || panicstr || shutdown_in_progress) {
1786	sc_touch_scrn_saver();
1787    } else if (scp != scp->sc->cur_scp) {
1788	return;
1789    }
1790
1791    if (!run_scrn_saver)
1792	scp->sc->flags &= ~SC_SCRN_IDLE;
1793#ifdef DEV_SPLASH
1794    if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
1795	if (scp->sc->flags & SC_SCRN_BLANKED)
1796            stop_scrn_saver(scp->sc, current_saver);
1797#endif
1798
1799    if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress
1800	|| scp->sc->switch_in_progress)
1801	return;
1802    /*
1803     * FIXME: unlike scrn_timer(), we call scrn_update() from here even
1804     * when write_in_progress is non-zero.  XXX
1805     */
1806
1807    if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
1808	scrn_update(scp, TRUE);
1809}
1810
1811static void
1812scrn_timer(void *arg)
1813{
1814#ifndef PC98
1815    static int kbd_interval = 0;
1816#endif
1817    struct timeval tv;
1818    sc_softc_t *sc;
1819    scr_stat *scp;
1820    int again;
1821    int s;
1822
1823    again = (arg != NULL);
1824    if (arg != NULL)
1825	sc = (sc_softc_t *)arg;
1826    else if (sc_console != NULL)
1827	sc = sc_console->sc;
1828    else
1829	return;
1830
1831    /* don't do anything when we are performing some I/O operations */
1832    if (suspend_in_progress || sc->font_loading_in_progress) {
1833	if (again)
1834	    timeout(scrn_timer, sc, hz / 10);
1835	return;
1836    }
1837    s = spltty();
1838
1839#ifndef PC98
1840    if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
1841	/* try to allocate a keyboard automatically */
1842	if (++kbd_interval >= 25) {
1843	    sc->keyboard = sc_allocate_keyboard(sc, -1);
1844	    if (sc->keyboard >= 0) {
1845		sc->kbd = kbd_get_keyboard(sc->keyboard);
1846		(void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1847			  (caddr_t)&sc->cur_scp->kbd_mode);
1848		update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1849				 LOCK_MASK);
1850	    }
1851	    kbd_interval = 0;
1852	}
1853    }
1854#endif /* PC98 */
1855
1856    /* find the vty to update */
1857    scp = sc->cur_scp;
1858
1859    /* should we stop the screen saver? */
1860    getmicrouptime(&tv);
1861    if (debugger > 0 || panicstr || shutdown_in_progress)
1862	sc_touch_scrn_saver();
1863    if (run_scrn_saver) {
1864	if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time)
1865	    sc->flags |= SC_SCRN_IDLE;
1866	else
1867	    sc->flags &= ~SC_SCRN_IDLE;
1868    } else {
1869	sc->scrn_time_stamp = tv.tv_sec;
1870	sc->flags &= ~SC_SCRN_IDLE;
1871	if (scrn_blank_time > 0)
1872	    run_scrn_saver = TRUE;
1873    }
1874#ifdef DEV_SPLASH
1875    if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
1876	if (sc->flags & SC_SCRN_BLANKED)
1877            stop_scrn_saver(sc, current_saver);
1878#endif
1879
1880    /* should we just return ? */
1881    if (sc->blink_in_progress || sc->switch_in_progress
1882	|| sc->write_in_progress) {
1883	if (again)
1884	    timeout(scrn_timer, sc, hz / 10);
1885	splx(s);
1886	return;
1887    }
1888
1889    /* Update the screen */
1890    scp = sc->cur_scp;		/* cur_scp may have changed... */
1891    if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1892	scrn_update(scp, TRUE);
1893
1894#ifdef DEV_SPLASH
1895    /* should we activate the screen saver? */
1896    if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
1897	if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
1898	    (*current_saver)(sc, TRUE);
1899#endif
1900
1901    if (again)
1902	timeout(scrn_timer, sc, hz / 25);
1903    splx(s);
1904}
1905
1906static int
1907and_region(int *s1, int *e1, int s2, int e2)
1908{
1909    if (*e1 < s2 || e2 < *s1)
1910	return FALSE;
1911    *s1 = imax(*s1, s2);
1912    *e1 = imin(*e1, e2);
1913    return TRUE;
1914}
1915
1916static void
1917scrn_update(scr_stat *scp, int show_cursor)
1918{
1919    int start;
1920    int end;
1921    int s;
1922    int e;
1923
1924    /* assert(scp == scp->sc->cur_scp) */
1925
1926    SC_VIDEO_LOCK(scp->sc);
1927
1928#ifndef SC_NO_CUTPASTE
1929    /* remove the previous mouse pointer image if necessary */
1930    if (scp->status & MOUSE_VISIBLE) {
1931	s = scp->mouse_pos;
1932	e = scp->mouse_pos + scp->xsize + 1;
1933	if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN))
1934	    || and_region(&s, &e, scp->start, scp->end)
1935	    || ((scp->status & CURSOR_ENABLED) &&
1936		(scp->cursor_pos != scp->cursor_oldpos) &&
1937		(and_region(&s, &e, scp->cursor_pos, scp->cursor_pos)
1938		 || and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos)))) {
1939	    sc_remove_mouse_image(scp);
1940	    if (scp->end >= scp->xsize*scp->ysize)
1941		scp->end = scp->xsize*scp->ysize - 1;
1942	}
1943    }
1944#endif /* !SC_NO_CUTPASTE */
1945
1946#if 1
1947    /* debug: XXX */
1948    if (scp->end >= scp->xsize*scp->ysize) {
1949	printf("scrn_update(): scp->end %d > size_of_screen!!\n", scp->end);
1950	scp->end = scp->xsize*scp->ysize - 1;
1951    }
1952    if (scp->start < 0) {
1953	printf("scrn_update(): scp->start %d < 0\n", scp->start);
1954	scp->start = 0;
1955    }
1956#endif
1957
1958    /* update screen image */
1959    if (scp->start <= scp->end)  {
1960	if (scp->mouse_cut_end >= 0) {
1961	    /* there is a marked region for cut & paste */
1962	    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
1963		start = scp->mouse_cut_start;
1964		end = scp->mouse_cut_end;
1965	    } else {
1966		start = scp->mouse_cut_end;
1967		end = scp->mouse_cut_start - 1;
1968	    }
1969	    s = start;
1970	    e = end;
1971	    /* does the cut-mark region overlap with the update region? */
1972	    if (and_region(&s, &e, scp->start, scp->end)) {
1973		(*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
1974		s = 0;
1975		e = start - 1;
1976		if (and_region(&s, &e, scp->start, scp->end))
1977		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
1978		s = end + 1;
1979		e = scp->xsize*scp->ysize - 1;
1980		if (and_region(&s, &e, scp->start, scp->end))
1981		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
1982	    } else {
1983		(*scp->rndr->draw)(scp, scp->start,
1984				   scp->end - scp->start + 1, FALSE);
1985	    }
1986	} else {
1987	    (*scp->rndr->draw)(scp, scp->start,
1988			       scp->end - scp->start + 1, FALSE);
1989	}
1990    }
1991
1992    /* we are not to show the cursor and the mouse pointer... */
1993    if (!show_cursor) {
1994        scp->end = 0;
1995        scp->start = scp->xsize*scp->ysize - 1;
1996	SC_VIDEO_UNLOCK(scp->sc);
1997	return;
1998    }
1999
2000    /* update cursor image */
2001    if (scp->status & CURSOR_ENABLED) {
2002	s = scp->start;
2003	e = scp->end;
2004        /* did cursor move since last time ? */
2005        if (scp->cursor_pos != scp->cursor_oldpos) {
2006            /* do we need to remove old cursor image ? */
2007            if (!and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
2008                sc_remove_cursor_image(scp);
2009            sc_draw_cursor_image(scp);
2010        } else {
2011            if (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos))
2012		/* cursor didn't move, but has been overwritten */
2013		sc_draw_cursor_image(scp);
2014	    else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
2015		/* if it's a blinking cursor, update it */
2016		(*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
2017					   sc_inside_cutmark(scp,
2018					       scp->cursor_pos));
2019        }
2020    }
2021
2022#ifndef SC_NO_CUTPASTE
2023    /* update "pseudo" mouse pointer image */
2024    if (scp->sc->flags & SC_MOUSE_ENABLED) {
2025	if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
2026	    scp->status &= ~MOUSE_MOVED;
2027	    sc_draw_mouse_image(scp);
2028	}
2029    }
2030#endif /* SC_NO_CUTPASTE */
2031
2032    scp->end = 0;
2033    scp->start = scp->xsize*scp->ysize - 1;
2034
2035    SC_VIDEO_UNLOCK(scp->sc);
2036}
2037
2038#ifdef DEV_SPLASH
2039static int
2040scsplash_callback(int event, void *arg)
2041{
2042    sc_softc_t *sc;
2043    int error;
2044
2045    sc = (sc_softc_t *)arg;
2046
2047    switch (event) {
2048    case SPLASH_INIT:
2049	if (add_scrn_saver(scsplash_saver) == 0) {
2050	    sc->flags &= ~SC_SAVER_FAILED;
2051	    run_scrn_saver = TRUE;
2052	    if (cold && !(boothowto & RB_VERBOSE)) {
2053		scsplash_stick(TRUE);
2054		(*current_saver)(sc, TRUE);
2055	    }
2056	}
2057	return 0;
2058
2059    case SPLASH_TERM:
2060	if (current_saver == scsplash_saver) {
2061	    scsplash_stick(FALSE);
2062	    error = remove_scrn_saver(scsplash_saver);
2063	    if (error)
2064		return error;
2065	}
2066	return 0;
2067
2068    default:
2069	return EINVAL;
2070    }
2071}
2072
2073static void
2074scsplash_saver(sc_softc_t *sc, int show)
2075{
2076    static int busy = FALSE;
2077    scr_stat *scp;
2078
2079    if (busy)
2080	return;
2081    busy = TRUE;
2082
2083    scp = sc->cur_scp;
2084    if (show) {
2085	if (!(sc->flags & SC_SAVER_FAILED)) {
2086	    if (!(sc->flags & SC_SCRN_BLANKED))
2087		set_scrn_saver_mode(scp, -1, NULL, 0);
2088	    switch (splash(sc->adp, TRUE)) {
2089	    case 0:		/* succeeded */
2090		break;
2091	    case EAGAIN:	/* try later */
2092		restore_scrn_saver_mode(scp, FALSE);
2093		sc_touch_scrn_saver();		/* XXX */
2094		break;
2095	    default:
2096		sc->flags |= SC_SAVER_FAILED;
2097		scsplash_stick(FALSE);
2098		restore_scrn_saver_mode(scp, TRUE);
2099		printf("scsplash_saver(): failed to put up the image\n");
2100		break;
2101	    }
2102	}
2103    } else if (!sticky_splash) {
2104	if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0))
2105	    restore_scrn_saver_mode(scp, TRUE);
2106    }
2107    busy = FALSE;
2108}
2109
2110static int
2111add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2112{
2113#if 0
2114    int error;
2115
2116    if (current_saver != none_saver) {
2117	error = remove_scrn_saver(current_saver);
2118	if (error)
2119	    return error;
2120    }
2121#endif
2122    if (current_saver != none_saver)
2123	return EBUSY;
2124
2125    run_scrn_saver = FALSE;
2126    saver_mode = CONS_LKM_SAVER;
2127    current_saver = this_saver;
2128    return 0;
2129}
2130
2131static int
2132remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2133{
2134    if (current_saver != this_saver)
2135	return EINVAL;
2136
2137#if 0
2138    /*
2139     * In order to prevent `current_saver' from being called by
2140     * the timeout routine `scrn_timer()' while we manipulate
2141     * the saver list, we shall set `current_saver' to `none_saver'
2142     * before stopping the current saver, rather than blocking by `splXX()'.
2143     */
2144    current_saver = none_saver;
2145    if (scrn_blanked)
2146        stop_scrn_saver(this_saver);
2147#endif
2148
2149    /* unblank all blanked screens */
2150    wait_scrn_saver_stop(NULL);
2151    if (scrn_blanked)
2152	return EBUSY;
2153
2154    current_saver = none_saver;
2155    return 0;
2156}
2157
2158static int
2159set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
2160{
2161    int s;
2162
2163    /* assert(scp == scp->sc->cur_scp) */
2164    s = spltty();
2165    if (!ISGRAPHSC(scp))
2166	sc_remove_cursor_image(scp);
2167    scp->splash_save_mode = scp->mode;
2168    scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
2169    scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
2170    scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
2171    scp->sc->flags |= SC_SCRN_BLANKED;
2172    ++scrn_blanked;
2173    splx(s);
2174    if (mode < 0)
2175	return 0;
2176    scp->mode = mode;
2177    if (set_mode(scp) == 0) {
2178	if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
2179	    scp->status |= GRAPHICS_MODE;
2180#ifndef SC_NO_PALETTE_LOADING
2181	if (pal != NULL)
2182	    vidd_load_palette(scp->sc->adp, pal);
2183#endif
2184	sc_set_border(scp, border);
2185	return 0;
2186    } else {
2187	s = spltty();
2188	scp->mode = scp->splash_save_mode;
2189	scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2190	scp->status |= scp->splash_save_status;
2191	splx(s);
2192	return 1;
2193    }
2194}
2195
2196static int
2197restore_scrn_saver_mode(scr_stat *scp, int changemode)
2198{
2199    int mode;
2200    int status;
2201    int s;
2202
2203    /* assert(scp == scp->sc->cur_scp) */
2204    s = spltty();
2205    mode = scp->mode;
2206    status = scp->status;
2207    scp->mode = scp->splash_save_mode;
2208    scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2209    scp->status |= scp->splash_save_status;
2210    scp->sc->flags &= ~SC_SCRN_BLANKED;
2211    if (!changemode) {
2212	if (!ISGRAPHSC(scp))
2213	    sc_draw_cursor_image(scp);
2214	--scrn_blanked;
2215	splx(s);
2216	return 0;
2217    }
2218    if (set_mode(scp) == 0) {
2219#ifndef SC_NO_PALETTE_LOADING
2220#ifdef SC_PIXEL_MODE
2221	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2222	    vidd_load_palette(scp->sc->adp, scp->sc->palette2);
2223	else
2224#endif
2225	vidd_load_palette(scp->sc->adp, scp->sc->palette);
2226#endif
2227	--scrn_blanked;
2228	splx(s);
2229	return 0;
2230    } else {
2231	scp->mode = mode;
2232	scp->status = status;
2233	splx(s);
2234	return 1;
2235    }
2236}
2237
2238static void
2239stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
2240{
2241    (*saver)(sc, FALSE);
2242    run_scrn_saver = FALSE;
2243    /* the screen saver may have chosen not to stop after all... */
2244    if (sc->flags & SC_SCRN_BLANKED)
2245	return;
2246
2247    mark_all(sc->cur_scp);
2248    if (sc->delayed_next_scr)
2249	sc_switch_scr(sc, sc->delayed_next_scr - 1);
2250    if (debugger == 0)
2251	wakeup(&scrn_blanked);
2252}
2253
2254static int
2255wait_scrn_saver_stop(sc_softc_t *sc)
2256{
2257    int error = 0;
2258
2259    while (scrn_blanked > 0) {
2260	run_scrn_saver = FALSE;
2261	if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
2262	    error = 0;
2263	    break;
2264	}
2265	error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
2266	if ((error != 0) && (error != ERESTART))
2267	    break;
2268    }
2269    run_scrn_saver = FALSE;
2270    return error;
2271}
2272#endif /* DEV_SPLASH */
2273
2274void
2275sc_touch_scrn_saver(void)
2276{
2277    scsplash_stick(FALSE);
2278    run_scrn_saver = FALSE;
2279}
2280
2281int
2282sc_switch_scr(sc_softc_t *sc, u_int next_scr)
2283{
2284    scr_stat *cur_scp;
2285    struct tty *tp;
2286    struct proc *p;
2287    int s;
2288
2289    DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
2290
2291    if (sc->cur_scp == NULL)
2292	return (0);
2293
2294    /* prevent switch if previously requested */
2295    if (sc->flags & SC_SCRN_VTYLOCK) {
2296	    sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
2297		sc->cur_scp->bell_duration);
2298	    return EPERM;
2299    }
2300
2301    /* delay switch if the screen is blanked or being updated */
2302    if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress
2303	|| sc->blink_in_progress) {
2304	sc->delayed_next_scr = next_scr + 1;
2305	sc_touch_scrn_saver();
2306	DPRINTF(5, ("switch delayed\n"));
2307	return 0;
2308    }
2309    sc->delayed_next_scr = 0;
2310
2311    s = spltty();
2312    cur_scp = sc->cur_scp;
2313
2314    /* we are in the middle of the vty switching process... */
2315    if (sc->switch_in_progress
2316	&& (cur_scp->smode.mode == VT_PROCESS)
2317	&& cur_scp->proc) {
2318	p = pfind(cur_scp->pid);
2319	if (cur_scp->proc != p) {
2320	    if (p)
2321		PROC_UNLOCK(p);
2322	    /*
2323	     * The controlling process has died!!.  Do some clean up.
2324	     * NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
2325	     * are not reset here yet; they will be cleared later.
2326	     */
2327	    DPRINTF(5, ("cur_scp controlling process %d died, ",
2328	       cur_scp->pid));
2329	    if (cur_scp->status & SWITCH_WAIT_REL) {
2330		/*
2331		 * Force the previous switch to finish, but return now
2332		 * with error.
2333		 */
2334		DPRINTF(5, ("reset WAIT_REL, "));
2335		finish_vt_rel(cur_scp, TRUE, &s);
2336		splx(s);
2337		DPRINTF(5, ("finishing previous switch\n"));
2338		return EINVAL;
2339	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2340		/* let's assume screen switch has been completed. */
2341		DPRINTF(5, ("reset WAIT_ACQ, "));
2342		finish_vt_acq(cur_scp);
2343	    } else {
2344		/*
2345	 	 * We are in between screen release and acquisition, and
2346		 * reached here via scgetc() or scrn_timer() which has
2347		 * interrupted exchange_scr(). Don't do anything stupid.
2348		 */
2349		DPRINTF(5, ("waiting nothing, "));
2350	    }
2351	} else {
2352	    if (p)
2353		PROC_UNLOCK(p);
2354	    /*
2355	     * The controlling process is alive, but not responding...
2356	     * It is either buggy or it may be just taking time.
2357	     * The following code is a gross kludge to cope with this
2358	     * problem for which there is no clean solution. XXX
2359	     */
2360	    if (cur_scp->status & SWITCH_WAIT_REL) {
2361		switch (sc->switch_in_progress++) {
2362		case 1:
2363		    break;
2364		case 2:
2365		    DPRINTF(5, ("sending relsig again, "));
2366		    signal_vt_rel(cur_scp);
2367		    break;
2368		case 3:
2369		    break;
2370		case 4:
2371		default:
2372		    /*
2373		     * Act as if the controlling program returned
2374		     * VT_FALSE.
2375		     */
2376		    DPRINTF(5, ("force reset WAIT_REL, "));
2377		    finish_vt_rel(cur_scp, FALSE, &s);
2378		    splx(s);
2379		    DPRINTF(5, ("act as if VT_FALSE was seen\n"));
2380		    return EINVAL;
2381		}
2382	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2383		switch (sc->switch_in_progress++) {
2384		case 1:
2385		    break;
2386		case 2:
2387		    DPRINTF(5, ("sending acqsig again, "));
2388		    signal_vt_acq(cur_scp);
2389		    break;
2390		case 3:
2391		    break;
2392		case 4:
2393		default:
2394		     /* clear the flag and finish the previous switch */
2395		    DPRINTF(5, ("force reset WAIT_ACQ, "));
2396		    finish_vt_acq(cur_scp);
2397		    break;
2398		}
2399	    }
2400	}
2401    }
2402
2403    /*
2404     * Return error if an invalid argument is given, or vty switch
2405     * is still in progress.
2406     */
2407    if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys)
2408	|| sc->switch_in_progress) {
2409	splx(s);
2410	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2411	DPRINTF(5, ("error 1\n"));
2412	return EINVAL;
2413    }
2414
2415    /*
2416     * Don't allow switching away from the graphics mode vty
2417     * if the switch mode is VT_AUTO, unless the next vty is the same
2418     * as the current or the current vty has been closed (but showing).
2419     */
2420    tp = SC_DEV(sc, cur_scp->index);
2421    if ((cur_scp->index != next_scr)
2422	&& tty_opened_ns(tp)
2423	&& (cur_scp->smode.mode == VT_AUTO)
2424	&& ISGRAPHSC(cur_scp)) {
2425	splx(s);
2426	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2427	DPRINTF(5, ("error, graphics mode\n"));
2428	return EINVAL;
2429    }
2430
2431    /*
2432     * Is the wanted vty open? Don't allow switching to a closed vty.
2433     * If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
2434     * Note that we always allow the user to switch to the kernel
2435     * console even if it is closed.
2436     */
2437    if ((sc_console == NULL) || (next_scr != sc_console->index)) {
2438	tp = SC_DEV(sc, next_scr);
2439	if (!tty_opened_ns(tp)) {
2440	    splx(s);
2441	    sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2442	    DPRINTF(5, ("error 2, requested vty isn't open!\n"));
2443	    return EINVAL;
2444	}
2445	if ((debugger > 0) && (SC_STAT(tp)->smode.mode == VT_PROCESS)) {
2446	    splx(s);
2447	    DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n"));
2448	    return EINVAL;
2449	}
2450    }
2451
2452    /* this is the start of vty switching process... */
2453    ++sc->switch_in_progress;
2454    sc->old_scp = cur_scp;
2455    sc->new_scp = sc_get_stat(SC_DEV(sc, next_scr));
2456    if (sc->new_scp == sc->old_scp) {
2457	sc->switch_in_progress = 0;
2458	/*
2459	 * XXX wakeup() locks the scheduler lock which will hang if
2460	 * the lock is in an in-between state, e.g., when we stop at
2461	 * a breakpoint at fork_exit.  It has always been wrong to call
2462	 * wakeup() when the debugger is active.  In RELENG_4, wakeup()
2463	 * is supposed to be locked by splhigh(), but the debugger may
2464	 * be invoked at splhigh().
2465	 */
2466	if (debugger == 0)
2467	    wakeup(VTY_WCHAN(sc,next_scr));
2468	splx(s);
2469	DPRINTF(5, ("switch done (new == old)\n"));
2470	return 0;
2471    }
2472
2473    /* has controlling process died? */
2474    vt_proc_alive(sc->old_scp);
2475    vt_proc_alive(sc->new_scp);
2476
2477    /* wait for the controlling process to release the screen, if necessary */
2478    if (signal_vt_rel(sc->old_scp)) {
2479	splx(s);
2480	return 0;
2481    }
2482
2483    /* go set up the new vty screen */
2484    splx(s);
2485    exchange_scr(sc);
2486    s = spltty();
2487
2488    /* wake up processes waiting for this vty */
2489    if (debugger == 0)
2490	wakeup(VTY_WCHAN(sc,next_scr));
2491
2492    /* wait for the controlling process to acknowledge, if necessary */
2493    if (signal_vt_acq(sc->cur_scp)) {
2494	splx(s);
2495	return 0;
2496    }
2497
2498    sc->switch_in_progress = 0;
2499    if (sc->unit == sc_console_unit)
2500	cnavailable(sc_consptr,  TRUE);
2501    splx(s);
2502    DPRINTF(5, ("switch done\n"));
2503
2504    return 0;
2505}
2506
2507static int
2508do_switch_scr(sc_softc_t *sc, int s)
2509{
2510    vt_proc_alive(sc->new_scp);
2511
2512    splx(s);
2513    exchange_scr(sc);
2514    s = spltty();
2515    /* sc->cur_scp == sc->new_scp */
2516    wakeup(VTY_WCHAN(sc,sc->cur_scp->index));
2517
2518    /* wait for the controlling process to acknowledge, if necessary */
2519    if (!signal_vt_acq(sc->cur_scp)) {
2520	sc->switch_in_progress = 0;
2521	if (sc->unit == sc_console_unit)
2522	    cnavailable(sc_consptr,  TRUE);
2523    }
2524
2525    return s;
2526}
2527
2528static int
2529vt_proc_alive(scr_stat *scp)
2530{
2531    struct proc *p;
2532
2533    if (scp->proc) {
2534	if ((p = pfind(scp->pid)) != NULL)
2535	    PROC_UNLOCK(p);
2536	if (scp->proc == p)
2537	    return TRUE;
2538	scp->proc = NULL;
2539	scp->smode.mode = VT_AUTO;
2540	DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
2541    }
2542    return FALSE;
2543}
2544
2545static int
2546signal_vt_rel(scr_stat *scp)
2547{
2548    if (scp->smode.mode != VT_PROCESS)
2549	return FALSE;
2550    scp->status |= SWITCH_WAIT_REL;
2551    PROC_LOCK(scp->proc);
2552    kern_psignal(scp->proc, scp->smode.relsig);
2553    PROC_UNLOCK(scp->proc);
2554    DPRINTF(5, ("sending relsig to %d\n", scp->pid));
2555    return TRUE;
2556}
2557
2558static int
2559signal_vt_acq(scr_stat *scp)
2560{
2561    if (scp->smode.mode != VT_PROCESS)
2562	return FALSE;
2563    if (scp->sc->unit == sc_console_unit)
2564	cnavailable(sc_consptr,  FALSE);
2565    scp->status |= SWITCH_WAIT_ACQ;
2566    PROC_LOCK(scp->proc);
2567    kern_psignal(scp->proc, scp->smode.acqsig);
2568    PROC_UNLOCK(scp->proc);
2569    DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
2570    return TRUE;
2571}
2572
2573static int
2574finish_vt_rel(scr_stat *scp, int release, int *s)
2575{
2576    if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
2577	scp->status &= ~SWITCH_WAIT_REL;
2578	if (release)
2579	    *s = do_switch_scr(scp->sc, *s);
2580	else
2581	    scp->sc->switch_in_progress = 0;
2582	return 0;
2583    }
2584    return EINVAL;
2585}
2586
2587static int
2588finish_vt_acq(scr_stat *scp)
2589{
2590    if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
2591	scp->status &= ~SWITCH_WAIT_ACQ;
2592	scp->sc->switch_in_progress = 0;
2593	return 0;
2594    }
2595    return EINVAL;
2596}
2597
2598static void
2599exchange_scr(sc_softc_t *sc)
2600{
2601    scr_stat *scp;
2602
2603    /* save the current state of video and keyboard */
2604    sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
2605    if (!ISGRAPHSC(sc->old_scp))
2606	sc_remove_cursor_image(sc->old_scp);
2607    if (sc->old_scp->kbd_mode == K_XLATE)
2608	save_kbd_state(sc->old_scp);
2609
2610    /* set up the video for the new screen */
2611    scp = sc->cur_scp = sc->new_scp;
2612#ifdef PC98
2613    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp) || ISUNKNOWNSC(sc->new_scp))
2614#else
2615    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
2616#endif
2617	set_mode(scp);
2618#ifndef __sparc64__
2619    else
2620	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2621		    (void *)sc->adp->va_window, FALSE);
2622#endif
2623    scp->status |= MOUSE_HIDDEN;
2624    sc_move_cursor(scp, scp->xpos, scp->ypos);
2625    if (!ISGRAPHSC(scp))
2626	sc_set_cursor_image(scp);
2627#ifndef SC_NO_PALETTE_LOADING
2628    if (ISGRAPHSC(sc->old_scp)) {
2629#ifdef SC_PIXEL_MODE
2630	if (sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2631	    vidd_load_palette(sc->adp, sc->palette2);
2632	else
2633#endif
2634	vidd_load_palette(sc->adp, sc->palette);
2635    }
2636#endif
2637    sc_set_border(scp, scp->border);
2638
2639    /* set up the keyboard for the new screen */
2640    if (sc->old_scp->kbd_mode != scp->kbd_mode)
2641	(void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
2642    update_kbd_state(scp, scp->status, LOCK_MASK);
2643
2644    mark_all(scp);
2645}
2646
2647static void
2648sc_puts(scr_stat *scp, u_char *buf, int len, int kernel)
2649{
2650    int need_unlock = 0;
2651
2652#ifdef DEV_SPLASH
2653    /* make screensaver happy */
2654    if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
2655	run_scrn_saver = FALSE;
2656#endif
2657
2658    if (scp->tsw) {
2659	if (!kdb_active && !mtx_owned(&scp->scr_lock)) {
2660		need_unlock = 1;
2661		mtx_lock_spin(&scp->scr_lock);
2662	}
2663	(*scp->tsw->te_puts)(scp, buf, len, kernel);
2664	if (need_unlock)
2665		mtx_unlock_spin(&scp->scr_lock);
2666    }
2667
2668    if (scp->sc->delayed_next_scr)
2669	sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
2670}
2671
2672void
2673sc_draw_cursor_image(scr_stat *scp)
2674{
2675    /* assert(scp == scp->sc->cur_scp); */
2676    SC_VIDEO_LOCK(scp->sc);
2677    (*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
2678			      scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
2679			      sc_inside_cutmark(scp, scp->cursor_pos));
2680    scp->cursor_oldpos = scp->cursor_pos;
2681    SC_VIDEO_UNLOCK(scp->sc);
2682}
2683
2684void
2685sc_remove_cursor_image(scr_stat *scp)
2686{
2687    /* assert(scp == scp->sc->cur_scp); */
2688    SC_VIDEO_LOCK(scp->sc);
2689    (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
2690			      scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
2691			      sc_inside_cutmark(scp, scp->cursor_oldpos));
2692    SC_VIDEO_UNLOCK(scp->sc);
2693}
2694
2695static void
2696update_cursor_image(scr_stat *scp)
2697{
2698    /* assert(scp == scp->sc->cur_scp); */
2699    sc_remove_cursor_image(scp);
2700    sc_set_cursor_image(scp);
2701    sc_draw_cursor_image(scp);
2702}
2703
2704void
2705sc_set_cursor_image(scr_stat *scp)
2706{
2707    scp->curs_attr.flags = scp->curr_curs_attr.flags;
2708    if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
2709	/* hidden cursor is internally represented as zero-height underline */
2710	scp->curs_attr.flags = CONS_CHAR_CURSOR;
2711	scp->curs_attr.base = scp->curs_attr.height = 0;
2712    } else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
2713	scp->curs_attr.base = imin(scp->curr_curs_attr.base,
2714				  scp->font_size - 1);
2715	scp->curs_attr.height = imin(scp->curr_curs_attr.height,
2716				    scp->font_size - scp->curs_attr.base);
2717    } else {	/* block cursor */
2718	scp->curs_attr.base = 0;
2719	scp->curs_attr.height = scp->font_size;
2720    }
2721
2722    /* assert(scp == scp->sc->cur_scp); */
2723    SC_VIDEO_LOCK(scp->sc);
2724    (*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
2725			     scp->curs_attr.flags & CONS_BLINK_CURSOR);
2726    SC_VIDEO_UNLOCK(scp->sc);
2727}
2728
2729static void
2730change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2731{
2732    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
2733	sc_remove_cursor_image(scp);
2734
2735    if (base >= 0)
2736	scp->curr_curs_attr.base = base;
2737    if (height >= 0)
2738	scp->curr_curs_attr.height = height;
2739    if (flags & CONS_RESET_CURSOR)
2740	scp->curr_curs_attr = scp->dflt_curs_attr;
2741    else
2742	scp->curr_curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2743
2744    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
2745	sc_set_cursor_image(scp);
2746	sc_draw_cursor_image(scp);
2747    }
2748}
2749
2750void
2751sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2752{
2753    sc_softc_t *sc;
2754    struct tty *tp;
2755    int s;
2756    int i;
2757
2758    s = spltty();
2759    if ((flags != -1) && (flags & CONS_LOCAL_CURSOR)) {
2760	/* local (per vty) change */
2761	change_cursor_shape(scp, flags, base, height);
2762	splx(s);
2763	return;
2764    }
2765
2766    /* global change */
2767    sc = scp->sc;
2768    if (base >= 0)
2769	sc->curs_attr.base = base;
2770    if (height >= 0)
2771	sc->curs_attr.height = height;
2772    if (flags != -1) {
2773	if (flags & CONS_RESET_CURSOR)
2774	    sc->curs_attr = sc->dflt_curs_attr;
2775	else
2776	    sc->curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2777    }
2778
2779    for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
2780	if ((tp = SC_DEV(sc, i)) == NULL)
2781	    continue;
2782	if ((scp = sc_get_stat(tp)) == NULL)
2783	    continue;
2784	scp->dflt_curs_attr = sc->curs_attr;
2785	change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
2786    }
2787    splx(s);
2788}
2789
2790static void
2791scinit(int unit, int flags)
2792{
2793
2794    /*
2795     * When syscons is being initialized as the kernel console, malloc()
2796     * is not yet functional, because various kernel structures has not been
2797     * fully initialized yet.  Therefore, we need to declare the following
2798     * static buffers for the console.  This is less than ideal,
2799     * but is necessry evil for the time being.  XXX
2800     */
2801#ifdef PC98
2802    static u_short sc_buffer[ROW*COL*2];/* XXX */
2803#else
2804    static u_short sc_buffer[ROW*COL];	/* XXX */
2805#endif
2806#ifndef SC_NO_FONT_LOADING
2807    static u_char font_8[256*8];
2808    static u_char font_14[256*14];
2809    static u_char font_16[256*16];
2810#endif
2811
2812    sc_softc_t *sc;
2813    scr_stat *scp;
2814    video_adapter_t *adp;
2815    int col;
2816    int row;
2817    int i;
2818
2819    /* one time initialization */
2820    if (init_done == COLD)
2821	sc_get_bios_values(&bios_value);
2822    init_done = WARM;
2823
2824    /*
2825     * Allocate resources.  Even if we are being called for the second
2826     * time, we must allocate them again, because they might have
2827     * disappeared...
2828     */
2829    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2830    if ((sc->flags & SC_INIT_DONE) == 0)
2831	SC_VIDEO_LOCKINIT(sc);
2832
2833    adp = NULL;
2834    if (sc->adapter >= 0) {
2835	vid_release(sc->adp, (void *)&sc->adapter);
2836	adp = sc->adp;
2837	sc->adp = NULL;
2838    }
2839    if (sc->keyboard >= 0) {
2840	DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard));
2841	i = kbd_release(sc->kbd, (void *)&sc->keyboard);
2842	DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
2843	if (sc->kbd != NULL) {
2844	    DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
2845		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2846	}
2847	sc->kbd = NULL;
2848    }
2849    sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
2850    sc->adp = vid_get_adapter(sc->adapter);
2851    /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
2852
2853    sc->keyboard = sc_allocate_keyboard(sc, unit);
2854    DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard));
2855
2856    sc->kbd = kbd_get_keyboard(sc->keyboard);
2857    if (sc->kbd != NULL) {
2858	DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n",
2859		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2860    }
2861
2862    if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
2863
2864	sc->initial_mode = sc->adp->va_initial_mode;
2865
2866#ifndef SC_NO_FONT_LOADING
2867	if (flags & SC_KERNEL_CONSOLE) {
2868	    sc->font_8 = font_8;
2869	    sc->font_14 = font_14;
2870	    sc->font_16 = font_16;
2871	} else if (sc->font_8 == NULL) {
2872	    /* assert(sc_malloc) */
2873	    sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
2874	    sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
2875	    sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
2876	}
2877#endif
2878
2879	/* extract the hardware cursor location and hide the cursor for now */
2880	vidd_read_hw_cursor(sc->adp, &col, &row);
2881	vidd_set_hw_cursor(sc->adp, -1, -1);
2882
2883	/* set up the first console */
2884	sc->first_vty = unit*MAXCONS;
2885	sc->vtys = MAXCONS;		/* XXX: should be configurable */
2886	if (flags & SC_KERNEL_CONSOLE) {
2887	    /*
2888	     * Set up devs structure but don't use it yet, calling make_dev()
2889	     * might panic kernel.  Wait for sc_attach_unit() to actually
2890	     * create the devices.
2891	     */
2892	    sc->dev = main_devs;
2893	    scp = &main_console;
2894	    init_scp(sc, sc->first_vty, scp);
2895	    sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize,
2896			(void *)sc_buffer, FALSE);
2897
2898	    /* move cursors to the initial positions */
2899	    if (col >= scp->xsize)
2900		col = 0;
2901	    if (row >= scp->ysize)
2902		row = scp->ysize - 1;
2903	    scp->xpos = col;
2904	    scp->ypos = row;
2905	    scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col;
2906
2907	    if (sc_init_emulator(scp, SC_DFLT_TERM))
2908		sc_init_emulator(scp, "*");
2909	    (*scp->tsw->te_default_attr)(scp,
2910					 user_default.std_color,
2911					 user_default.rev_color);
2912	} else {
2913	    /* assert(sc_malloc) */
2914	    sc->dev = malloc(sizeof(struct tty *)*sc->vtys, M_DEVBUF,
2915	        M_WAITOK|M_ZERO);
2916	    sc->dev[0] = sc_alloc_tty(0, unit * MAXCONS);
2917	    scp = alloc_scp(sc, sc->first_vty);
2918	    SC_STAT(sc->dev[0]) = scp;
2919	}
2920	sc->cur_scp = scp;
2921
2922#ifndef __sparc64__
2923	/* copy screen to temporary buffer */
2924	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2925		    (void *)scp->sc->adp->va_window, FALSE);
2926	if (ISTEXTSC(scp))
2927	    sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize);
2928#endif
2929
2930	if (bios_value.cursor_end < scp->font_size)
2931	    sc->dflt_curs_attr.base = scp->font_size -
2932					  bios_value.cursor_end - 1;
2933	else
2934	    sc->dflt_curs_attr.base = 0;
2935	i = bios_value.cursor_end - bios_value.cursor_start + 1;
2936	sc->dflt_curs_attr.height = imin(i, scp->font_size);
2937	sc->dflt_curs_attr.flags = 0;
2938	sc->curs_attr = sc->dflt_curs_attr;
2939	scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
2940
2941#ifndef SC_NO_SYSMOUSE
2942	sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2);
2943#endif
2944	if (!ISGRAPHSC(scp)) {
2945    	    sc_set_cursor_image(scp);
2946    	    sc_draw_cursor_image(scp);
2947	}
2948
2949	/* save font and palette */
2950#ifndef SC_NO_FONT_LOADING
2951	sc->fonts_loaded = 0;
2952	if (ISFONTAVAIL(sc->adp->va_flags)) {
2953#ifdef SC_DFLT_FONT
2954	    bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
2955	    bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
2956	    bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
2957	    sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
2958	    if (scp->font_size < 14) {
2959		sc_load_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2960	    } else if (scp->font_size >= 16) {
2961		sc_load_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2962	    } else {
2963		sc_load_font(scp, 0, 14, 8, sc->font_14, 0, 256);
2964	    }
2965#else /* !SC_DFLT_FONT */
2966	    if (scp->font_size < 14) {
2967		sc_save_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2968		sc->fonts_loaded = FONT_8;
2969	    } else if (scp->font_size >= 16) {
2970		sc_save_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2971		sc->fonts_loaded = FONT_16;
2972	    } else {
2973		sc_save_font(scp, 0, 14, 8, sc->font_14, 0, 256);
2974		sc->fonts_loaded = FONT_14;
2975	    }
2976#endif /* SC_DFLT_FONT */
2977	    /* FONT KLUDGE: always use the font page #0. XXX */
2978	    sc_show_font(scp, 0);
2979	}
2980#endif /* !SC_NO_FONT_LOADING */
2981
2982#ifndef SC_NO_PALETTE_LOADING
2983	vidd_save_palette(sc->adp, sc->palette);
2984#ifdef SC_PIXEL_MODE
2985	for (i = 0; i < sizeof(sc->palette2); i++)
2986		sc->palette2[i] = i / 3;
2987#endif
2988#endif
2989
2990#ifdef DEV_SPLASH
2991	if (!(sc->flags & SC_SPLASH_SCRN)) {
2992	    /* we are ready to put up the splash image! */
2993	    splash_init(sc->adp, scsplash_callback, sc);
2994	    sc->flags |= SC_SPLASH_SCRN;
2995	}
2996#endif
2997    }
2998
2999    /* the rest is not necessary, if we have done it once */
3000    if (sc->flags & SC_INIT_DONE)
3001	return;
3002
3003    /* initialize mapscrn arrays to a one to one map */
3004    for (i = 0; i < sizeof(sc->scr_map); i++)
3005	sc->scr_map[i] = sc->scr_rmap[i] = i;
3006#ifdef PC98
3007    sc->scr_map[0x5c] = (u_char)0xfc;	/* for backslash */
3008#endif
3009
3010    sc->flags |= SC_INIT_DONE;
3011}
3012
3013static void
3014scterm(int unit, int flags)
3015{
3016    sc_softc_t *sc;
3017    scr_stat *scp;
3018
3019    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
3020    if (sc == NULL)
3021	return;			/* shouldn't happen */
3022
3023#ifdef DEV_SPLASH
3024    /* this console is no longer available for the splash screen */
3025    if (sc->flags & SC_SPLASH_SCRN) {
3026	splash_term(sc->adp);
3027	sc->flags &= ~SC_SPLASH_SCRN;
3028    }
3029#endif
3030
3031#if 0 /* XXX */
3032    /* move the hardware cursor to the upper-left corner */
3033    vidd_set_hw_cursor(sc->adp, 0, 0);
3034#endif
3035
3036    /* release the keyboard and the video card */
3037    if (sc->keyboard >= 0)
3038	kbd_release(sc->kbd, &sc->keyboard);
3039    if (sc->adapter >= 0)
3040	vid_release(sc->adp, &sc->adapter);
3041
3042    /* stop the terminal emulator, if any */
3043    scp = sc_get_stat(sc->dev[0]);
3044    if (scp->tsw)
3045	(*scp->tsw->te_term)(scp, &scp->ts);
3046    if (scp->ts != NULL)
3047	free(scp->ts, M_DEVBUF);
3048    mtx_destroy(&scp->scr_lock);
3049
3050    /* clear the structure */
3051    if (!(flags & SC_KERNEL_CONSOLE)) {
3052	/* XXX: We need delete_dev() for this */
3053	free(sc->dev, M_DEVBUF);
3054#if 0
3055	/* XXX: We need a ttyunregister for this */
3056	free(sc->tty, M_DEVBUF);
3057#endif
3058#ifndef SC_NO_FONT_LOADING
3059	free(sc->font_8, M_DEVBUF);
3060	free(sc->font_14, M_DEVBUF);
3061	free(sc->font_16, M_DEVBUF);
3062#endif
3063	/* XXX vtb, history */
3064    }
3065    bzero(sc, sizeof(*sc));
3066    sc->keyboard = -1;
3067    sc->adapter = -1;
3068}
3069
3070static void
3071scshutdown(__unused void *arg, __unused int howto)
3072{
3073
3074	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3075	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3076	KASSERT(sc_console->sc->cur_scp != NULL,
3077	    ("sc_console->sc->cur_scp != NULL"));
3078
3079	sc_touch_scrn_saver();
3080	if (!cold &&
3081	    sc_console->sc->cur_scp->index != sc_console->index &&
3082	    sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
3083	    sc_console->smode.mode == VT_AUTO)
3084		sc_switch_scr(sc_console->sc, sc_console->index);
3085	shutdown_in_progress = TRUE;
3086}
3087
3088static void
3089scsuspend(__unused void *arg)
3090{
3091	int retry;
3092
3093	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3094	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3095	KASSERT(sc_console->sc->cur_scp != NULL,
3096	    ("sc_console->sc->cur_scp != NULL"));
3097
3098	sc_susp_scr = sc_console->sc->cur_scp->index;
3099	if (sc_no_suspend_vtswitch ||
3100	    sc_susp_scr == sc_console->index) {
3101		sc_touch_scrn_saver();
3102		sc_susp_scr = -1;
3103		return;
3104	}
3105	for (retry = 0; retry < 10; retry++) {
3106		sc_switch_scr(sc_console->sc, sc_console->index);
3107		if (!sc_console->sc->switch_in_progress)
3108			break;
3109		pause("scsuspend", hz);
3110	}
3111	suspend_in_progress = TRUE;
3112}
3113
3114static void
3115scresume(__unused void *arg)
3116{
3117
3118	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3119	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3120	KASSERT(sc_console->sc->cur_scp != NULL,
3121	    ("sc_console->sc->cur_scp != NULL"));
3122
3123	suspend_in_progress = FALSE;
3124	if (sc_susp_scr < 0) {
3125		mark_all(sc_console->sc->cur_scp);
3126		return;
3127	}
3128	sc_switch_scr(sc_console->sc, sc_susp_scr);
3129}
3130
3131int
3132sc_clean_up(scr_stat *scp)
3133{
3134#ifdef DEV_SPLASH
3135    int error;
3136#endif
3137
3138    if (scp->sc->flags & SC_SCRN_BLANKED) {
3139	sc_touch_scrn_saver();
3140#ifdef DEV_SPLASH
3141	if ((error = wait_scrn_saver_stop(scp->sc)))
3142	    return error;
3143#endif
3144    }
3145    scp->status |= MOUSE_HIDDEN;
3146    sc_remove_mouse_image(scp);
3147    sc_remove_cutmarking(scp);
3148    return 0;
3149}
3150
3151void
3152sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
3153{
3154    sc_vtb_t new;
3155    sc_vtb_t old;
3156
3157    old = scp->vtb;
3158    sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
3159    if (!discard && (old.vtb_flags & VTB_VALID)) {
3160	/* retain the current cursor position and buffer contants */
3161	scp->cursor_oldpos = scp->cursor_pos;
3162	/*
3163	 * This works only if the old buffer has the same size as or larger
3164	 * than the new one. XXX
3165	 */
3166	sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize);
3167	scp->vtb = new;
3168    } else {
3169	scp->vtb = new;
3170	sc_vtb_destroy(&old);
3171    }
3172
3173#ifndef SC_NO_SYSMOUSE
3174    /* move the mouse cursor at the center of the screen */
3175    sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
3176#endif
3177}
3178
3179static scr_stat
3180*alloc_scp(sc_softc_t *sc, int vty)
3181{
3182    scr_stat *scp;
3183
3184    /* assert(sc_malloc) */
3185
3186    scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
3187    init_scp(sc, vty, scp);
3188
3189    sc_alloc_scr_buffer(scp, TRUE, TRUE);
3190    if (sc_init_emulator(scp, SC_DFLT_TERM))
3191	sc_init_emulator(scp, "*");
3192
3193#ifndef SC_NO_CUTPASTE
3194    sc_alloc_cut_buffer(scp, TRUE);
3195#endif
3196
3197#ifndef SC_NO_HISTORY
3198    sc_alloc_history_buffer(scp, 0, 0, TRUE);
3199#endif
3200
3201    return scp;
3202}
3203
3204static void
3205init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
3206{
3207    video_info_t info;
3208
3209    bzero(scp, sizeof(*scp));
3210
3211    scp->index = vty;
3212    scp->sc = sc;
3213    scp->status = 0;
3214    scp->mode = sc->initial_mode;
3215    vidd_get_info(sc->adp, scp->mode, &info);
3216    if (info.vi_flags & V_INFO_GRAPHICS) {
3217	scp->status |= GRAPHICS_MODE;
3218	scp->xpixel = info.vi_width;
3219	scp->ypixel = info.vi_height;
3220	scp->xsize = info.vi_width/info.vi_cwidth;
3221	scp->ysize = info.vi_height/info.vi_cheight;
3222	scp->font_size = 0;
3223	scp->font = NULL;
3224    } else {
3225	scp->xsize = info.vi_width;
3226	scp->ysize = info.vi_height;
3227	scp->xpixel = scp->xsize*info.vi_cwidth;
3228	scp->ypixel = scp->ysize*info.vi_cheight;
3229    }
3230
3231    scp->font_size = info.vi_cheight;
3232    scp->font_width = info.vi_cwidth;
3233#ifndef SC_NO_FONT_LOADING
3234    if (info.vi_cheight < 14)
3235	scp->font = sc->font_8;
3236    else if (info.vi_cheight >= 16)
3237	scp->font = sc->font_16;
3238    else
3239	scp->font = sc->font_14;
3240#else
3241    scp->font = NULL;
3242#endif
3243
3244    sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
3245#ifndef __sparc64__
3246    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
3247#endif
3248    scp->xoff = scp->yoff = 0;
3249    scp->xpos = scp->ypos = 0;
3250    scp->start = scp->xsize * scp->ysize - 1;
3251    scp->end = 0;
3252    scp->tsw = NULL;
3253    scp->ts = NULL;
3254    scp->rndr = NULL;
3255    scp->border = (SC_NORM_ATTR >> 4) & 0x0f;
3256    scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3257    scp->mouse_cut_start = scp->xsize*scp->ysize;
3258    scp->mouse_cut_end = -1;
3259    scp->mouse_signal = 0;
3260    scp->mouse_pid = 0;
3261    scp->mouse_proc = NULL;
3262    scp->kbd_mode = K_XLATE;
3263    scp->bell_pitch = bios_value.bell_pitch;
3264    scp->bell_duration = BELL_DURATION;
3265    scp->status |= (bios_value.shift_state & NLKED);
3266    scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
3267    scp->pid = 0;
3268    scp->proc = NULL;
3269    scp->smode.mode = VT_AUTO;
3270    scp->history = NULL;
3271    scp->history_pos = 0;
3272    scp->history_size = 0;
3273
3274    mtx_init(&scp->scr_lock, "scrlock", NULL, MTX_SPIN);
3275}
3276
3277int
3278sc_init_emulator(scr_stat *scp, char *name)
3279{
3280    sc_term_sw_t *sw;
3281    sc_rndr_sw_t *rndr;
3282    void *p;
3283    int error;
3284
3285    if (name == NULL)	/* if no name is given, use the current emulator */
3286	sw = scp->tsw;
3287    else		/* ...otherwise find the named emulator */
3288	sw = sc_term_match(name);
3289    if (sw == NULL)
3290	return EINVAL;
3291
3292    rndr = NULL;
3293    if (strcmp(sw->te_renderer, "*") != 0) {
3294	rndr = sc_render_match(scp, sw->te_renderer,
3295			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3296    }
3297    if (rndr == NULL) {
3298	rndr = sc_render_match(scp, scp->sc->adp->va_name,
3299			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3300	if (rndr == NULL)
3301	    return ENODEV;
3302    }
3303
3304    if (sw == scp->tsw) {
3305	error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
3306	scp->rndr = rndr;
3307	scp->rndr->init(scp);
3308	sc_clear_screen(scp);
3309	/* assert(error == 0); */
3310	return error;
3311    }
3312
3313    if (sc_malloc && (sw->te_size > 0))
3314	p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
3315    else
3316	p = NULL;
3317    error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
3318    if (error)
3319	return error;
3320
3321    if (scp->tsw)
3322	(*scp->tsw->te_term)(scp, &scp->ts);
3323    if (scp->ts != NULL)
3324	free(scp->ts, M_DEVBUF);
3325    scp->tsw = sw;
3326    scp->ts = p;
3327    scp->rndr = rndr;
3328    scp->rndr->init(scp);
3329
3330    /* XXX */
3331    (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color);
3332    sc_clear_screen(scp);
3333
3334    return 0;
3335}
3336
3337/*
3338 * scgetc(flags) - get character from keyboard.
3339 * If flags & SCGETC_CN, then avoid harmful side effects.
3340 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
3341 * return NOKEY if there is nothing there.
3342 */
3343static u_int
3344scgetc(sc_softc_t *sc, u_int flags)
3345{
3346    scr_stat *scp;
3347#ifndef SC_NO_HISTORY
3348    struct tty *tp;
3349#endif
3350    u_int c;
3351    int this_scr;
3352    int f;
3353    int i;
3354
3355    if (sc->kbd == NULL)
3356	return NOKEY;
3357
3358next_code:
3359#if 1
3360    /* I don't like this, but... XXX */
3361    if (flags & SCGETC_CN)
3362	sccnupdate(sc->cur_scp);
3363#endif
3364    scp = sc->cur_scp;
3365    /* first see if there is something in the keyboard port */
3366    for (;;) {
3367	c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
3368	if (c == ERRKEY) {
3369	    if (!(flags & SCGETC_CN))
3370		sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3371	} else if (c == NOKEY)
3372	    return c;
3373	else
3374	    break;
3375    }
3376
3377    /* make screensaver happy */
3378    if (!(c & RELKEY))
3379	sc_touch_scrn_saver();
3380
3381    if (!(flags & SCGETC_CN))
3382	random_harvest(&c, sizeof(c), 1, 0, RANDOM_KEYBOARD);
3383
3384    if (scp->kbd_mode != K_XLATE)
3385	return KEYCHAR(c);
3386
3387    /* if scroll-lock pressed allow history browsing */
3388    if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
3389
3390	scp->status &= ~CURSOR_ENABLED;
3391	sc_remove_cursor_image(scp);
3392
3393#ifndef SC_NO_HISTORY
3394	if (!(scp->status & BUFFER_SAVED)) {
3395	    scp->status |= BUFFER_SAVED;
3396	    sc_hist_save(scp);
3397	}
3398	switch (c) {
3399	/* FIXME: key codes */
3400	case SPCLKEY | FKEY | F(49):  /* home key */
3401	    sc_remove_cutmarking(scp);
3402	    sc_hist_home(scp);
3403	    goto next_code;
3404
3405	case SPCLKEY | FKEY | F(57):  /* end key */
3406	    sc_remove_cutmarking(scp);
3407	    sc_hist_end(scp);
3408	    goto next_code;
3409
3410	case SPCLKEY | FKEY | F(50):  /* up arrow key */
3411	    sc_remove_cutmarking(scp);
3412	    if (sc_hist_up_line(scp))
3413		if (!(flags & SCGETC_CN))
3414		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3415	    goto next_code;
3416
3417	case SPCLKEY | FKEY | F(58):  /* down arrow key */
3418	    sc_remove_cutmarking(scp);
3419	    if (sc_hist_down_line(scp))
3420		if (!(flags & SCGETC_CN))
3421		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3422	    goto next_code;
3423
3424	case SPCLKEY | FKEY | F(51):  /* page up key */
3425	    sc_remove_cutmarking(scp);
3426	    for (i=0; i<scp->ysize; i++)
3427	    if (sc_hist_up_line(scp)) {
3428		if (!(flags & SCGETC_CN))
3429		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3430		break;
3431	    }
3432	    goto next_code;
3433
3434	case SPCLKEY | FKEY | F(59):  /* page down key */
3435	    sc_remove_cutmarking(scp);
3436	    for (i=0; i<scp->ysize; i++)
3437	    if (sc_hist_down_line(scp)) {
3438		if (!(flags & SCGETC_CN))
3439		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3440		break;
3441	    }
3442	    goto next_code;
3443	}
3444#endif /* SC_NO_HISTORY */
3445    }
3446
3447    /*
3448     * Process and consume special keys here.  Return a plain char code
3449     * or a char code with the META flag or a function key code.
3450     */
3451    if (c & RELKEY) {
3452	/* key released */
3453	/* goto next_code */
3454    } else {
3455	/* key pressed */
3456	if (c & SPCLKEY) {
3457	    c &= ~SPCLKEY;
3458	    switch (KEYCHAR(c)) {
3459	    /* LOCKING KEYS */
3460	    case NLK: case CLK: case ALK:
3461		break;
3462	    case SLK:
3463		(void)kbdd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f);
3464		if (f & SLKED) {
3465		    scp->status |= SLKED;
3466		} else {
3467		    if (scp->status & SLKED) {
3468			scp->status &= ~SLKED;
3469#ifndef SC_NO_HISTORY
3470			if (scp->status & BUFFER_SAVED) {
3471			    if (!sc_hist_restore(scp))
3472				sc_remove_cutmarking(scp);
3473			    scp->status &= ~BUFFER_SAVED;
3474			    scp->status |= CURSOR_ENABLED;
3475			    sc_draw_cursor_image(scp);
3476			}
3477			tp = SC_DEV(sc, scp->index);
3478			if (!kdb_active && tty_opened_ns(tp))
3479			    sctty_outwakeup(tp);
3480#endif
3481		    }
3482		}
3483		break;
3484
3485	    case PASTE:
3486#ifndef SC_NO_CUTPASTE
3487		sc_mouse_paste(scp);
3488#endif
3489		break;
3490
3491	    /* NON-LOCKING KEYS */
3492	    case NOP:
3493	    case LSH:  case RSH:  case LCTR: case RCTR:
3494	    case LALT: case RALT: case ASH:  case META:
3495		break;
3496
3497	    case BTAB:
3498		if (!(sc->flags & SC_SCRN_BLANKED))
3499		    return c;
3500		break;
3501
3502	    case SPSC:
3503#ifdef DEV_SPLASH
3504		/* force activatation/deactivation of the screen saver */
3505		if (!(sc->flags & SC_SCRN_BLANKED)) {
3506		    run_scrn_saver = TRUE;
3507		    sc->scrn_time_stamp -= scrn_blank_time;
3508		}
3509		if (cold) {
3510		    /*
3511		     * While devices are being probed, the screen saver need
3512		     * to be invoked explictly. XXX
3513		     */
3514		    if (sc->flags & SC_SCRN_BLANKED) {
3515			scsplash_stick(FALSE);
3516			stop_scrn_saver(sc, current_saver);
3517		    } else {
3518			if (!ISGRAPHSC(scp)) {
3519			    scsplash_stick(TRUE);
3520			    (*current_saver)(sc, TRUE);
3521			}
3522		    }
3523		}
3524#endif /* DEV_SPLASH */
3525		break;
3526
3527	    case RBT:
3528#ifndef SC_DISABLE_REBOOT
3529		if (enable_reboot)
3530			shutdown_nice(0);
3531#endif
3532		break;
3533
3534	    case HALT:
3535#ifndef SC_DISABLE_REBOOT
3536		if (enable_reboot)
3537			shutdown_nice(RB_HALT);
3538#endif
3539		break;
3540
3541	    case PDWN:
3542#ifndef SC_DISABLE_REBOOT
3543		if (enable_reboot)
3544			shutdown_nice(RB_HALT|RB_POWEROFF);
3545#endif
3546		break;
3547
3548	    case SUSP:
3549		power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
3550		break;
3551	    case STBY:
3552		power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
3553		break;
3554
3555	    case DBG:
3556#ifndef SC_DISABLE_KDBKEY
3557		if (enable_kdbkey)
3558			kdb_break();
3559#endif
3560		break;
3561
3562	    case PNC:
3563		if (enable_panic_key)
3564			panic("Forced by the panic key");
3565		break;
3566
3567	    case NEXT:
3568		this_scr = scp->index;
3569		for (i = (this_scr - sc->first_vty + 1)%sc->vtys;
3570			sc->first_vty + i != this_scr;
3571			i = (i + 1)%sc->vtys) {
3572		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3573		    if (tty_opened_ns(tp)) {
3574			sc_switch_scr(scp->sc, sc->first_vty + i);
3575			break;
3576		    }
3577		}
3578		break;
3579
3580	    case PREV:
3581		this_scr = scp->index;
3582		for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys;
3583			sc->first_vty + i != this_scr;
3584			i = (i + sc->vtys - 1)%sc->vtys) {
3585		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3586		    if (tty_opened_ns(tp)) {
3587			sc_switch_scr(scp->sc, sc->first_vty + i);
3588			break;
3589		    }
3590		}
3591		break;
3592
3593	    default:
3594		if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) {
3595		    sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR);
3596		    break;
3597		}
3598		/* assert(c & FKEY) */
3599		if (!(sc->flags & SC_SCRN_BLANKED))
3600		    return c;
3601		break;
3602	    }
3603	    /* goto next_code */
3604	} else {
3605	    /* regular keys (maybe MKEY is set) */
3606#if !defined(SC_DISABLE_KDBKEY) && defined(KDB)
3607	    if (enable_kdbkey)
3608		kdb_alt_break(c, &sc->sc_altbrk);
3609#endif
3610	    if (!(sc->flags & SC_SCRN_BLANKED))
3611		return c;
3612	}
3613    }
3614
3615    goto next_code;
3616}
3617
3618static int
3619sctty_mmap(struct tty *tp, vm_ooffset_t offset, vm_paddr_t *paddr,
3620    int nprot, vm_memattr_t *memattr)
3621{
3622    scr_stat *scp;
3623
3624    scp = sc_get_stat(tp);
3625    if (scp != scp->sc->cur_scp)
3626	return -1;
3627    return vidd_mmap(scp->sc->adp, offset, paddr, nprot, memattr);
3628}
3629
3630static int
3631save_kbd_state(scr_stat *scp)
3632{
3633    int state;
3634    int error;
3635
3636    error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3637    if (error == ENOIOCTL)
3638	error = ENODEV;
3639    if (error == 0) {
3640	scp->status &= ~LOCK_MASK;
3641	scp->status |= state;
3642    }
3643    return error;
3644}
3645
3646static int
3647update_kbd_state(scr_stat *scp, int new_bits, int mask)
3648{
3649    int state;
3650    int error;
3651
3652    if (mask != LOCK_MASK) {
3653	error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3654	if (error == ENOIOCTL)
3655	    error = ENODEV;
3656	if (error)
3657	    return error;
3658	state &= ~mask;
3659	state |= new_bits & mask;
3660    } else {
3661	state = new_bits & LOCK_MASK;
3662    }
3663    error = kbdd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
3664    if (error == ENOIOCTL)
3665	error = ENODEV;
3666    return error;
3667}
3668
3669static int
3670update_kbd_leds(scr_stat *scp, int which)
3671{
3672    int error;
3673
3674    which &= LOCK_MASK;
3675    error = kbdd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
3676    if (error == ENOIOCTL)
3677	error = ENODEV;
3678    return error;
3679}
3680
3681int
3682set_mode(scr_stat *scp)
3683{
3684    video_info_t info;
3685
3686    /* reject unsupported mode */
3687    if (vidd_get_info(scp->sc->adp, scp->mode, &info))
3688	return 1;
3689
3690    /* if this vty is not currently showing, do nothing */
3691    if (scp != scp->sc->cur_scp)
3692	return 0;
3693
3694    /* setup video hardware for the given mode */
3695    vidd_set_mode(scp->sc->adp, scp->mode);
3696    scp->rndr->init(scp);
3697#ifndef __sparc64__
3698    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3699		(void *)scp->sc->adp->va_window, FALSE);
3700#endif
3701
3702#ifndef SC_NO_FONT_LOADING
3703    /* load appropriate font */
3704    if (!(scp->status & GRAPHICS_MODE)) {
3705	if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) {
3706	    if (scp->font_size < 14) {
3707		if (scp->sc->fonts_loaded & FONT_8)
3708		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
3709	    } else if (scp->font_size >= 16) {
3710		if (scp->sc->fonts_loaded & FONT_16)
3711		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
3712	    } else {
3713		if (scp->sc->fonts_loaded & FONT_14)
3714		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
3715	    }
3716	    /*
3717	     * FONT KLUDGE:
3718	     * This is an interim kludge to display correct font.
3719	     * Always use the font page #0 on the video plane 2.
3720	     * Somehow we cannot show the font in other font pages on
3721	     * some video cards... XXX
3722	     */
3723	    sc_show_font(scp, 0);
3724	}
3725	mark_all(scp);
3726    }
3727#endif /* !SC_NO_FONT_LOADING */
3728
3729    sc_set_border(scp, scp->border);
3730    sc_set_cursor_image(scp);
3731
3732    return 0;
3733}
3734
3735void
3736sc_set_border(scr_stat *scp, int color)
3737{
3738    SC_VIDEO_LOCK(scp->sc);
3739    (*scp->rndr->draw_border)(scp, color);
3740    SC_VIDEO_UNLOCK(scp->sc);
3741}
3742
3743#ifndef SC_NO_FONT_LOADING
3744void
3745sc_load_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3746	     int base, int count)
3747{
3748    sc_softc_t *sc;
3749
3750    sc = scp->sc;
3751    sc->font_loading_in_progress = TRUE;
3752    vidd_load_font(sc->adp, page, size, width, buf, base, count);
3753    sc->font_loading_in_progress = FALSE;
3754}
3755
3756void
3757sc_save_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3758	     int base, int count)
3759{
3760    sc_softc_t *sc;
3761
3762    sc = scp->sc;
3763    sc->font_loading_in_progress = TRUE;
3764    vidd_save_font(sc->adp, page, size, width, buf, base, count);
3765    sc->font_loading_in_progress = FALSE;
3766}
3767
3768void
3769sc_show_font(scr_stat *scp, int page)
3770{
3771    vidd_show_font(scp->sc->adp, page);
3772}
3773#endif /* !SC_NO_FONT_LOADING */
3774
3775void
3776sc_paste(scr_stat *scp, const u_char *p, int count)
3777{
3778    struct tty *tp;
3779    u_char *rmap;
3780
3781    tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3782    if (!tty_opened_ns(tp))
3783	return;
3784    rmap = scp->sc->scr_rmap;
3785    for (; count > 0; --count)
3786	ttydisc_rint(tp, rmap[*p++], 0);
3787    ttydisc_rint_done(tp);
3788}
3789
3790void
3791sc_respond(scr_stat *scp, const u_char *p, int count, int wakeup)
3792{
3793    struct tty *tp;
3794
3795    tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3796    if (!tty_opened_ns(tp))
3797	return;
3798    ttydisc_rint_simple(tp, p, count);
3799    if (wakeup) {
3800	/* XXX: we can't always call ttydisc_rint_done() here! */
3801	ttydisc_rint_done(tp);
3802    }
3803}
3804
3805void
3806sc_bell(scr_stat *scp, int pitch, int duration)
3807{
3808    if (cold || shutdown_in_progress || !enable_bell)
3809	return;
3810
3811    if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
3812	return;
3813
3814    if (scp->sc->flags & SC_VISUAL_BELL) {
3815	if (scp->sc->blink_in_progress)
3816	    return;
3817	scp->sc->blink_in_progress = 3;
3818	if (scp != scp->sc->cur_scp)
3819	    scp->sc->blink_in_progress += 2;
3820	blink_screen(scp->sc->cur_scp);
3821    } else if (duration != 0 && pitch != 0) {
3822	if (scp != scp->sc->cur_scp)
3823	    pitch *= 2;
3824	sysbeep(1193182 / pitch, duration);
3825    }
3826}
3827
3828static void
3829blink_screen(void *arg)
3830{
3831    scr_stat *scp = arg;
3832    struct tty *tp;
3833
3834    if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
3835	scp->sc->blink_in_progress = 0;
3836    	mark_all(scp);
3837	tp = SC_DEV(scp->sc, scp->index);
3838	if (tty_opened_ns(tp))
3839	    sctty_outwakeup(tp);
3840	if (scp->sc->delayed_next_scr)
3841	    sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
3842    }
3843    else {
3844	(*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize,
3845			   scp->sc->blink_in_progress & 1);
3846	scp->sc->blink_in_progress--;
3847	timeout(blink_screen, scp, hz / 10);
3848    }
3849}
3850
3851/*
3852 * Until sc_attach_unit() gets called no dev structures will be available
3853 * to store the per-screen current status.  This is the case when the
3854 * kernel is initially booting and needs access to its console.  During
3855 * this early phase of booting the console's current status is kept in
3856 * one statically defined scr_stat structure, and any pointers to the
3857 * dev structures will be NULL.
3858 */
3859
3860static scr_stat *
3861sc_get_stat(struct tty *tp)
3862{
3863	if (tp == NULL)
3864		return (&main_console);
3865	return (SC_STAT(tp));
3866}
3867
3868/*
3869 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and,
3870 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for
3871 * any keyboard.
3872 */
3873
3874static int
3875sc_allocate_keyboard(sc_softc_t *sc, int unit)
3876{
3877	int		 idx0, idx;
3878	keyboard_t	*k0, *k;
3879	keyboard_info_t	 ki;
3880
3881	idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc);
3882	if (idx0 != -1) {
3883		k0 = kbd_get_keyboard(idx0);
3884
3885		for (idx = kbd_find_keyboard2("*", -1, 0);
3886		     idx != -1;
3887		     idx = kbd_find_keyboard2("*", -1, idx + 1)) {
3888			k = kbd_get_keyboard(idx);
3889
3890			if (idx == idx0 || KBD_IS_BUSY(k))
3891				continue;
3892
3893			bzero(&ki, sizeof(ki));
3894			strcpy(ki.kb_name, k->kb_name);
3895			ki.kb_unit = k->kb_unit;
3896
3897			(void)kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
3898		}
3899	} else
3900		idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc);
3901
3902	return (idx0);
3903}
3904