xref: /freebsd/sys/dev/syscons/syscons.c (revision d8e37c5f7263d495f44e79a303f1c30b0a79b0df)
1 /*-
2  * Copyright (c) 1992-1998 Søren 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("$FreeBSD$");
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 
93 typedef struct default_attr {
94 	int		std_color;		/* normal hardware color */
95 	int		rev_color;		/* reverse hardware color */
96 } default_attr;
97 
98 static default_attr user_default = {
99     SC_NORM_ATTR,
100     SC_NORM_REV_ATTR,
101 };
102 
103 static	int		sc_console_unit = -1;
104 static	int		sc_saver_keyb_only = 1;
105 static  scr_stat    	*sc_console;
106 static  struct consdev	*sc_consptr;
107 static	scr_stat	main_console;
108 static	struct tty 	*main_devs[MAXCONS];
109 
110 static  char        	init_done = COLD;
111 static	int		shutdown_in_progress = FALSE;
112 static	int		suspend_in_progress = FALSE;
113 static	char		sc_malloc = FALSE;
114 
115 static	int		saver_mode = CONS_NO_SAVER; /* LKM/user saver */
116 static	int		run_scrn_saver = FALSE;	/* should run the saver? */
117 static	int		enable_bell = TRUE; /* enable beeper */
118 
119 #ifndef SC_DISABLE_REBOOT
120 static  int		enable_reboot = TRUE; /* enable keyboard reboot */
121 #endif
122 
123 #ifndef SC_DISABLE_KDBKEY
124 static  int		enable_kdbkey = TRUE; /* enable keyboard debug */
125 #endif
126 
127 static	long        	scrn_blank_time = 0;    /* screen saver timeout value */
128 #ifdef DEV_SPLASH
129 static	int     	scrn_blanked;		/* # of blanked screen */
130 static	int		sticky_splash = FALSE;
131 
132 static	void		none_saver(sc_softc_t *sc, int blank) { }
133 static	void		(*current_saver)(sc_softc_t *, int) = none_saver;
134 #endif
135 
136 #ifdef SC_NO_SUSPEND_VTYSWITCH
137 static	int		sc_no_suspend_vtswitch = 1;
138 #else
139 static	int		sc_no_suspend_vtswitch = 0;
140 #endif
141 static	int		sc_susp_scr;
142 
143 static SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD, 0, "syscons");
144 static SYSCTL_NODE(_hw_syscons, OID_AUTO, saver, CTLFLAG_RD, 0, "saver");
145 SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
146     &sc_saver_keyb_only, 0, "screen saver interrupted by input only");
147 SYSCTL_INT(_hw_syscons, OID_AUTO, bell, CTLFLAG_RW, &enable_bell,
148     0, "enable bell");
149 #ifndef SC_DISABLE_REBOOT
150 SYSCTL_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
154 SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_debug, CTLFLAG_RW|CTLFLAG_SECURE, &enable_kdbkey,
155     0, "enable keyboard debug");
156 #endif
157 TUNABLE_INT("hw.syscons.sc_no_suspend_vtswitch", &sc_no_suspend_vtswitch);
158 SYSCTL_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 
166 static	bios_values_t	bios_value;
167 
168 static	int		enable_panic_key;
169 SYSCTL_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 
176 static	int		debugger;
177 
178 /* prototypes */
179 static int sc_allocate_keyboard(sc_softc_t *sc, int unit);
180 static int scvidprobe(int unit, int flags, int cons);
181 static int sckbdprobe(int unit, int flags, int cons);
182 static void scmeminit(void *arg);
183 static int scdevtounit(struct tty *tp);
184 static kbd_callback_func_t sckbdevent;
185 static void scinit(int unit, int flags);
186 static scr_stat *sc_get_stat(struct tty *tp);
187 static void scterm(int unit, int flags);
188 static void scshutdown(void *, int);
189 static void scsuspend(void *);
190 static void scresume(void *);
191 static u_int scgetc(sc_softc_t *sc, u_int flags);
192 static void sc_puts(scr_stat *scp, u_char *buf, int len, int kernel);
193 #define SCGETC_CN	1
194 #define SCGETC_NONBLOCK	2
195 static void sccnupdate(scr_stat *scp);
196 static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
197 static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
198 static timeout_t scrn_timer;
199 static int and_region(int *s1, int *e1, int s2, int e2);
200 static void scrn_update(scr_stat *scp, int show_cursor);
201 
202 #ifdef DEV_SPLASH
203 static int scsplash_callback(int event, void *arg);
204 static void scsplash_saver(sc_softc_t *sc, int show);
205 static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
206 static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
207 static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border);
208 static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
209 static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
210 static 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 
216 static int do_switch_scr(sc_softc_t *sc, int s);
217 static int vt_proc_alive(scr_stat *scp);
218 static int signal_vt_rel(scr_stat *scp);
219 static int signal_vt_acq(scr_stat *scp);
220 static int finish_vt_rel(scr_stat *scp, int release, int *s);
221 static int finish_vt_acq(scr_stat *scp);
222 static void exchange_scr(sc_softc_t *sc);
223 static void update_cursor_image(scr_stat *scp);
224 static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
225 static void update_font(scr_stat *);
226 static int save_kbd_state(scr_stat *scp);
227 static int update_kbd_state(scr_stat *scp, int state, int mask);
228 static int update_kbd_leds(scr_stat *scp, int which);
229 static timeout_t blink_screen;
230 static struct tty *sc_alloc_tty(int, int);
231 
232 static cn_probe_t	sc_cnprobe;
233 static cn_init_t	sc_cninit;
234 static cn_term_t	sc_cnterm;
235 static cn_getc_t	sc_cngetc;
236 static cn_putc_t	sc_cnputc;
237 static cn_grab_t	sc_cngrab;
238 static cn_ungrab_t	sc_cnungrab;
239 
240 CONSOLE_DRIVER(sc);
241 
242 static	tsw_open_t	sctty_open;
243 static	tsw_close_t	sctty_close;
244 static	tsw_outwakeup_t	sctty_outwakeup;
245 static	tsw_ioctl_t	sctty_ioctl;
246 static	tsw_mmap_t	sctty_mmap;
247 
248 static struct ttydevsw sc_ttydevsw = {
249 	.tsw_open	= sctty_open,
250 	.tsw_close	= sctty_close,
251 	.tsw_outwakeup	= sctty_outwakeup,
252 	.tsw_ioctl	= sctty_ioctl,
253 	.tsw_mmap	= sctty_mmap,
254 };
255 
256 static d_ioctl_t	consolectl_ioctl;
257 static d_close_t	consolectl_close;
258 
259 static struct cdevsw consolectl_devsw = {
260 	.d_version	= D_VERSION,
261 	.d_flags	= D_NEEDGIANT | D_TRACKCLOSE,
262 	.d_ioctl	= consolectl_ioctl,
263 	.d_close	= consolectl_close,
264 	.d_name		= "consolectl",
265 };
266 
267 int
268 sc_probe_unit(int unit, int flags)
269 {
270     if (!scvidprobe(unit, flags, FALSE)) {
271 	if (bootverbose)
272 	    printf("%s%d: no video adapter found.\n", SC_DRIVER_NAME, unit);
273 	return ENXIO;
274     }
275 
276     /* syscons will be attached even when there is no keyboard */
277     sckbdprobe(unit, flags, FALSE);
278 
279     return 0;
280 }
281 
282 /* probe video adapters, return TRUE if found */
283 static int
284 scvidprobe(int unit, int flags, int cons)
285 {
286     /*
287      * Access the video adapter driver through the back door!
288      * Video adapter drivers need to be configured before syscons.
289      * However, when syscons is being probed as the low-level console,
290      * they have not been initialized yet.  We force them to initialize
291      * themselves here. XXX
292      */
293     vid_configure(cons ? VIO_PROBE_ONLY : 0);
294 
295     return (vid_find_adapter("*", unit) >= 0);
296 }
297 
298 /* probe the keyboard, return TRUE if found */
299 static int
300 sckbdprobe(int unit, int flags, int cons)
301 {
302     /* access the keyboard driver through the backdoor! */
303     kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
304 
305     return (kbd_find_keyboard("*", unit) >= 0);
306 }
307 
308 static char
309 *adapter_name(video_adapter_t *adp)
310 {
311     static struct {
312 	int type;
313 	char *name[2];
314     } names[] = {
315 	{ KD_MONO,	{ "MDA",	"MDA" } },
316 	{ KD_HERCULES,	{ "Hercules",	"Hercules" } },
317 	{ KD_CGA,	{ "CGA",	"CGA" } },
318 	{ KD_EGA,	{ "EGA",	"EGA (mono)" } },
319 	{ KD_VGA,	{ "VGA",	"VGA (mono)" } },
320 	{ KD_PC98,	{ "PC-98x1",	"PC-98x1" } },
321 	{ KD_TGA,	{ "TGA",	"TGA" } },
322 	{ -1,		{ "Unknown",	"Unknown" } },
323     };
324     int i;
325 
326     for (i = 0; names[i].type != -1; ++i)
327 	if (names[i].type == adp->va_type)
328 	    break;
329     return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
330 }
331 
332 static void
333 sctty_outwakeup(struct tty *tp)
334 {
335     size_t len;
336     u_char buf[PCBURST];
337     scr_stat *scp = sc_get_stat(tp);
338 
339     if (scp->status & SLKED ||
340 	(scp == scp->sc->cur_scp && scp->sc->blink_in_progress))
341 	return;
342 
343     for (;;) {
344 	len = ttydisc_getc(tp, buf, sizeof buf);
345 	if (len == 0)
346 	    break;
347 	sc_puts(scp, buf, len, 0);
348     }
349 }
350 
351 static struct tty *
352 sc_alloc_tty(int index, int devnum)
353 {
354 	struct sc_ttysoftc *stc;
355 	struct tty *tp;
356 
357 	/* Allocate TTY object and softc to store unit number. */
358 	stc = malloc(sizeof(struct sc_ttysoftc), M_DEVBUF, M_WAITOK);
359 	stc->st_index = index;
360 	stc->st_stat = NULL;
361 	tp = tty_alloc_mutex(&sc_ttydevsw, stc, &Giant);
362 
363 	/* Create device node. */
364 	tty_makedev(tp, NULL, "v%r", devnum);
365 
366 	return (tp);
367 }
368 
369 #ifdef SC_PIXEL_MODE
370 static void
371 sc_set_vesa_mode(scr_stat *scp, sc_softc_t *sc, int unit)
372 {
373 	video_info_t info;
374 	u_char *font;
375 	int depth;
376 	int fontsize;
377 	int i;
378 	int vmode;
379 
380 	vmode = 0;
381 	(void)resource_int_value("sc", unit, "vesa_mode", &vmode);
382 	if (vmode < M_VESA_BASE || vmode > M_VESA_MODE_MAX ||
383 	    vidd_get_info(sc->adp, vmode, &info) != 0 ||
384 	    !sc_support_pixel_mode(&info))
385 		vmode = 0;
386 
387 	/*
388 	 * If the mode is unset or unsupported, search for an available
389 	 * 800x600 graphics mode with the highest color depth.
390 	 */
391 	if (vmode == 0) {
392 		for (depth = 0, i = M_VESA_BASE; i <= M_VESA_MODE_MAX; i++)
393 			if (vidd_get_info(sc->adp, i, &info) == 0 &&
394 			    info.vi_width == 800 && info.vi_height == 600 &&
395 			    sc_support_pixel_mode(&info) &&
396 			    info.vi_depth > depth) {
397 				vmode = i;
398 				depth = info.vi_depth;
399 			}
400 		if (vmode == 0)
401 			return;
402 		vidd_get_info(sc->adp, vmode, &info);
403 	}
404 
405 #if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
406 	fontsize = info.vi_cheight;
407 #else
408 	fontsize = scp->font_size;
409 #endif
410 	if (fontsize < 14)
411 		fontsize = 8;
412 	else if (fontsize >= 16)
413 		fontsize = 16;
414 	else
415 		fontsize = 14;
416 #ifndef SC_NO_FONT_LOADING
417 	switch (fontsize) {
418 	case 8:
419 		if ((sc->fonts_loaded & FONT_8) == 0)
420 			return;
421 		font = sc->font_8;
422 		break;
423 	case 14:
424 		if ((sc->fonts_loaded & FONT_14) == 0)
425 			return;
426 		font = sc->font_14;
427 		break;
428 	case 16:
429 		if ((sc->fonts_loaded & FONT_16) == 0)
430 			return;
431 		font = sc->font_16;
432 		break;
433 	}
434 #else
435 	font = NULL;
436 #endif
437 #ifdef DEV_SPLASH
438 	if ((sc->flags & SC_SPLASH_SCRN) != 0)
439 		splash_term(sc->adp);
440 #endif
441 #ifndef SC_NO_HISTORY
442 	if (scp->history != NULL) {
443 		sc_vtb_append(&scp->vtb, 0, scp->history,
444 		    scp->ypos * scp->xsize + scp->xpos);
445 		scp->history_pos = sc_vtb_tail(scp->history);
446 	}
447 #endif
448 	vidd_set_mode(sc->adp, vmode);
449 	scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
450 	scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
451 	scp->xpixel = info.vi_width;
452 	scp->ypixel = info.vi_height;
453 	scp->xsize = scp->xpixel / 8;
454 	scp->ysize = scp->ypixel / fontsize;
455 	scp->xpos = 0;
456 	scp->ypos = scp->ysize - 1;
457 	scp->xoff = scp->yoff = 0;
458 	scp->font = font;
459 	scp->font_size = fontsize;
460 	scp->font_width = 8;
461 	scp->start = scp->xsize * scp->ysize - 1;
462 	scp->end = 0;
463 	scp->cursor_pos = scp->cursor_oldpos = scp->xsize * scp->xsize;
464 	scp->mode = sc->initial_mode = vmode;
465 #ifndef __sparc64__
466 	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
467 	    (void *)sc->adp->va_window, FALSE);
468 #endif
469 	sc_alloc_scr_buffer(scp, FALSE, FALSE);
470 	sc_init_emulator(scp, NULL);
471 #ifndef SC_NO_CUTPASTE
472 	sc_alloc_cut_buffer(scp, FALSE);
473 #endif
474 #ifndef SC_NO_HISTORY
475 	sc_alloc_history_buffer(scp, 0, 0, FALSE);
476 #endif
477 	sc_set_border(scp, scp->border);
478 	sc_set_cursor_image(scp);
479 	scp->status &= ~UNKNOWN_MODE;
480 #ifdef DEV_SPLASH
481 	if ((sc->flags & SC_SPLASH_SCRN) != 0)
482 		splash_init(sc->adp, scsplash_callback, sc);
483 #endif
484 }
485 #endif
486 
487 int
488 sc_attach_unit(int unit, int flags)
489 {
490     sc_softc_t *sc;
491     scr_stat *scp;
492     struct cdev *dev;
493     int vc;
494 
495     flags &= ~SC_KERNEL_CONSOLE;
496 
497     if (sc_console_unit == unit) {
498 	/*
499 	 * If this unit is being used as the system console, we need to
500 	 * adjust some variables and buffers before and after scinit().
501 	 */
502 	/* assert(sc_console != NULL) */
503 	flags |= SC_KERNEL_CONSOLE;
504 	scmeminit(NULL);
505     }
506     scinit(unit, flags);
507 
508     sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
509     sc->config = flags;
510     callout_init(&sc->ctimeout, 0);
511     callout_init(&sc->cblink, 0);
512     scp = sc_get_stat(sc->dev[0]);
513     if (sc_console == NULL)	/* sc_console_unit < 0 */
514 	sc_console = scp;
515 
516 #ifdef SC_PIXEL_MODE
517     if ((sc->config & SC_VESAMODE) != 0)
518 	sc_set_vesa_mode(scp, sc, unit);
519 #endif /* SC_PIXEL_MODE */
520 
521     /* initialize cursor */
522     if (!ISGRAPHSC(scp))
523     	update_cursor_image(scp);
524 
525     /* get screen update going */
526     scrn_timer(sc);
527 
528     /* set up the keyboard */
529     (void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
530     update_kbd_state(scp, scp->status, LOCK_MASK);
531 
532     printf("%s%d: %s <%d virtual consoles, flags=0x%x>\n",
533 	   SC_DRIVER_NAME, unit, adapter_name(sc->adp), sc->vtys, sc->config);
534     if (bootverbose) {
535 	printf("%s%d:", SC_DRIVER_NAME, unit);
536     	if (sc->adapter >= 0)
537 	    printf(" fb%d", sc->adapter);
538 	if (sc->keyboard >= 0)
539 	    printf(", kbd%d", sc->keyboard);
540 	if (scp->tsw)
541 	    printf(", terminal emulator: %s (%s)",
542 		   scp->tsw->te_name, scp->tsw->te_desc);
543 	printf("\n");
544     }
545 
546     /* Register suspend/resume/shutdown callbacks for the kernel console. */
547     if (sc_console_unit == unit) {
548 	EVENTHANDLER_REGISTER(power_suspend, scsuspend, NULL,
549 			      EVENTHANDLER_PRI_ANY);
550 	EVENTHANDLER_REGISTER(power_resume, scresume, NULL,
551 			      EVENTHANDLER_PRI_ANY);
552 	EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown, NULL,
553 			      SHUTDOWN_PRI_DEFAULT);
554     }
555 
556     for (vc = 0; vc < sc->vtys; vc++) {
557 	if (sc->dev[vc] == NULL) {
558 		sc->dev[vc] = sc_alloc_tty(vc, vc + unit * MAXCONS);
559 		if (vc == 0 && sc->dev == main_devs)
560 			SC_STAT(sc->dev[0]) = &main_console;
561 	}
562 	/*
563 	 * The first vty already has struct tty and scr_stat initialized
564 	 * in scinit().  The other vtys will have these structs when
565 	 * first opened.
566 	 */
567     }
568 
569     dev = make_dev(&consolectl_devsw, 0, UID_ROOT, GID_WHEEL, 0600,
570         "consolectl");
571     dev->si_drv1 = sc->dev[0];
572 
573     return 0;
574 }
575 
576 static void
577 scmeminit(void *arg)
578 {
579     if (sc_malloc)
580 	return;
581     sc_malloc = TRUE;
582 
583     /*
584      * As soon as malloc() becomes functional, we had better allocate
585      * various buffers for the kernel console.
586      */
587 
588     if (sc_console_unit < 0)	/* sc_console == NULL */
589 	return;
590 
591     /* copy the temporary buffer to the final buffer */
592     sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
593 
594 #ifndef SC_NO_CUTPASTE
595     sc_alloc_cut_buffer(sc_console, FALSE);
596 #endif
597 
598 #ifndef SC_NO_HISTORY
599     /* initialize history buffer & pointers */
600     sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
601 #endif
602 }
603 
604 /* XXX */
605 SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
606 
607 static int
608 scdevtounit(struct tty *tp)
609 {
610     int vty = SC_VTY(tp);
611 
612     if (vty == SC_CONSOLECTL)
613 	return ((sc_console != NULL) ? sc_console->sc->unit : -1);
614     else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit()))
615 	return -1;
616     else
617 	return vty/MAXCONS;
618 }
619 
620 static int
621 sctty_open(struct tty *tp)
622 {
623     int unit = scdevtounit(tp);
624     sc_softc_t *sc;
625     scr_stat *scp;
626 #ifndef __sparc64__
627     keyarg_t key;
628 #endif
629 
630     DPRINTF(5, ("scopen: dev:%s, unit:%d, vty:%d\n",
631 		devtoname(tp->t_dev), unit, SC_VTY(tp)));
632 
633     sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
634     if (sc == NULL)
635 	return ENXIO;
636 
637     if (!tty_opened(tp)) {
638         /* Use the current setting of the <-- key as default VERASE. */
639         /* If the Delete key is preferable, an stty is necessary     */
640 #ifndef __sparc64__
641 	if (sc->kbd != NULL) {
642 	    key.keynum = KEYCODE_BS;
643 	    (void)kbdd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
644             tp->t_termios.c_cc[VERASE] = key.key.map[0];
645 	}
646 #endif
647     }
648 
649     scp = sc_get_stat(tp);
650     if (scp == NULL) {
651 	scp = SC_STAT(tp) = alloc_scp(sc, SC_VTY(tp));
652 	if (ISGRAPHSC(scp))
653 	    sc_set_pixel_mode(scp, NULL, 0, 0, 16, 8);
654     }
655     if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
656 	tp->t_winsize.ws_col = scp->xsize;
657 	tp->t_winsize.ws_row = scp->ysize;
658     }
659 
660     return (0);
661 }
662 
663 static void
664 sctty_close(struct tty *tp)
665 {
666     scr_stat *scp;
667     int s;
668 
669     if (SC_VTY(tp) != SC_CONSOLECTL) {
670 	scp = sc_get_stat(tp);
671 	/* were we in the middle of the VT switching process? */
672 	DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
673 	s = spltty();
674 	if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit))
675 	    cnavailable(sc_consptr, TRUE);
676 	if (finish_vt_rel(scp, TRUE, &s) == 0)	/* force release */
677 	    DPRINTF(5, ("reset WAIT_REL, "));
678 	if (finish_vt_acq(scp) == 0)		/* force acknowledge */
679 	    DPRINTF(5, ("reset WAIT_ACQ, "));
680 #ifdef not_yet_done
681 	if (scp == &main_console) {
682 	    scp->pid = 0;
683 	    scp->proc = NULL;
684 	    scp->smode.mode = VT_AUTO;
685 	}
686 	else {
687 	    sc_vtb_destroy(&scp->vtb);
688 #ifndef __sparc64__
689 	    sc_vtb_destroy(&scp->scr);
690 #endif
691 	    sc_free_history_buffer(scp, scp->ysize);
692 	    SC_STAT(tp) = NULL;
693 	    free(scp, M_DEVBUF);
694 	}
695 #else
696 	scp->pid = 0;
697 	scp->proc = NULL;
698 	scp->smode.mode = VT_AUTO;
699 #endif
700 	scp->kbd_mode = K_XLATE;
701 	if (scp == scp->sc->cur_scp)
702 	    (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
703 	DPRINTF(5, ("done.\n"));
704     }
705 }
706 
707 #if 0 /* XXX mpsafetty: fix screensaver. What about outwakeup? */
708 static int
709 scread(struct cdev *dev, struct uio *uio, int flag)
710 {
711     if (!sc_saver_keyb_only)
712 	sc_touch_scrn_saver();
713     return ttyread(dev, uio, flag);
714 }
715 #endif
716 
717 static int
718 sckbdevent(keyboard_t *thiskbd, int event, void *arg)
719 {
720     sc_softc_t *sc;
721     struct tty *cur_tty;
722     int c, error = 0;
723     size_t len;
724     const u_char *cp;
725 
726     sc = (sc_softc_t *)arg;
727     /* assert(thiskbd == sc->kbd) */
728 
729     mtx_lock(&Giant);
730 
731     switch (event) {
732     case KBDIO_KEYINPUT:
733 	break;
734     case KBDIO_UNLOADING:
735 	sc->kbd = NULL;
736 	sc->keyboard = -1;
737 	kbd_release(thiskbd, (void *)&sc->keyboard);
738 	goto done;
739     default:
740 	error = EINVAL;
741 	goto done;
742     }
743 
744     /*
745      * Loop while there is still input to get from the keyboard.
746      * I don't think this is nessesary, and it doesn't fix
747      * the Xaccel-2.1 keyboard hang, but it can't hurt.		XXX
748      */
749     while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) {
750 
751 	cur_tty = SC_DEV(sc, sc->cur_scp->index);
752 	if (!tty_opened_ns(cur_tty))
753 	    continue;
754 
755 	if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
756 	    continue;
757 
758 	switch (KEYFLAGS(c)) {
759 	case 0x0000: /* normal key */
760 	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
761 	    break;
762 	case FKEY:  /* function key, return string */
763 	    cp = (*sc->cur_scp->tsw->te_fkeystr)(sc->cur_scp, c);
764 	    if (cp != NULL) {
765 	    	ttydisc_rint_simple(cur_tty, cp, strlen(cp));
766 		break;
767 	    }
768 	    cp = kbdd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
769 	    if (cp != NULL)
770 	    	ttydisc_rint_simple(cur_tty, cp, len);
771 	    break;
772 	case MKEY:  /* meta is active, prepend ESC */
773 	    ttydisc_rint(cur_tty, 0x1b, 0);
774 	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
775 	    break;
776 	case BKEY:  /* backtab fixed sequence (esc [ Z) */
777 	    ttydisc_rint_simple(cur_tty, "\x1B[Z", 3);
778 	    break;
779 	}
780 
781 	ttydisc_rint_done(cur_tty);
782     }
783 
784     sc->cur_scp->status |= MOUSE_HIDDEN;
785 
786 done:
787     mtx_unlock(&Giant);
788     return (error);
789 }
790 
791 static int
792 sctty_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
793 {
794     int error;
795     int i;
796     sc_softc_t *sc;
797     scr_stat *scp;
798     int s;
799 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
800     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
801     int ival;
802 #endif
803 
804     /* If there is a user_ioctl function call that first */
805     if (sc_user_ioctl) {
806 	error = (*sc_user_ioctl)(tp, cmd, data, td);
807 	if (error != ENOIOCTL)
808 	    return error;
809     }
810 
811     error = sc_vid_ioctl(tp, cmd, data, td);
812     if (error != ENOIOCTL)
813 	return error;
814 
815 #ifndef SC_NO_HISTORY
816     error = sc_hist_ioctl(tp, cmd, data, td);
817     if (error != ENOIOCTL)
818 	return error;
819 #endif
820 
821 #ifndef SC_NO_SYSMOUSE
822     error = sc_mouse_ioctl(tp, cmd, data, td);
823     if (error != ENOIOCTL)
824 	return error;
825 #endif
826 
827     scp = sc_get_stat(tp);
828     /* assert(scp != NULL) */
829     /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
830     sc = scp->sc;
831 
832     if (scp->tsw) {
833 	error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, td);
834 	if (error != ENOIOCTL)
835 	    return error;
836     }
837 
838     switch (cmd) {  		/* process console hardware related ioctl's */
839 
840     case GIO_ATTR:      	/* get current attributes */
841 	/* this ioctl is not processed here, but in the terminal emulator */
842 	return ENOTTY;
843 
844     case GIO_COLOR:     	/* is this a color console ? */
845 	*(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
846 	return 0;
847 
848     case CONS_BLANKTIME:    	/* set screen saver timeout (0 = no saver) */
849 	if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
850             return EINVAL;
851 	s = spltty();
852 	scrn_blank_time = *(int *)data;
853 	run_scrn_saver = (scrn_blank_time != 0);
854 	splx(s);
855 	return 0;
856 
857     case CONS_CURSORTYPE:   	/* set cursor type (obsolete) */
858 	s = spltty();
859 	*(int *)data &= CONS_CURSOR_ATTRS;
860 	sc_change_cursor_shape(scp, *(int *)data, -1, -1);
861 	splx(s);
862 	return 0;
863 
864     case CONS_GETCURSORSHAPE:   /* get cursor shape (new interface) */
865 	if (((int *)data)[0] & CONS_LOCAL_CURSOR) {
866 	    ((int *)data)[0] = scp->curr_curs_attr.flags;
867 	    ((int *)data)[1] = scp->curr_curs_attr.base;
868 	    ((int *)data)[2] = scp->curr_curs_attr.height;
869 	} else {
870 	    ((int *)data)[0] = sc->curs_attr.flags;
871 	    ((int *)data)[1] = sc->curs_attr.base;
872 	    ((int *)data)[2] = sc->curs_attr.height;
873 	}
874 	return 0;
875 
876     case CONS_SETCURSORSHAPE:   /* set cursor shape (new interface) */
877 	s = spltty();
878 	sc_change_cursor_shape(scp, ((int *)data)[0],
879 	    ((int *)data)[1], ((int *)data)[2]);
880 	splx(s);
881 	return 0;
882 
883     case CONS_BELLTYPE: 	/* set bell type sound/visual */
884 	if ((*(int *)data) & CONS_VISUAL_BELL)
885 	    sc->flags |= SC_VISUAL_BELL;
886 	else
887 	    sc->flags &= ~SC_VISUAL_BELL;
888 	if ((*(int *)data) & CONS_QUIET_BELL)
889 	    sc->flags |= SC_QUIET_BELL;
890 	else
891 	    sc->flags &= ~SC_QUIET_BELL;
892 	return 0;
893 
894     case CONS_GETINFO:  	/* get current (virtual) console info */
895     {
896 	vid_info_t *ptr = (vid_info_t*)data;
897 	if (ptr->size == sizeof(struct vid_info)) {
898 	    ptr->m_num = sc->cur_scp->index;
899 	    ptr->font_size = scp->font_size;
900 	    ptr->mv_col = scp->xpos;
901 	    ptr->mv_row = scp->ypos;
902 	    ptr->mv_csz = scp->xsize;
903 	    ptr->mv_rsz = scp->ysize;
904 	    ptr->mv_hsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
905 	    /*
906 	     * The following fields are filled by the terminal emulator. XXX
907 	     *
908 	     * ptr->mv_norm.fore
909 	     * ptr->mv_norm.back
910 	     * ptr->mv_rev.fore
911 	     * ptr->mv_rev.back
912 	     */
913 	    ptr->mv_grfc.fore = 0;      /* not supported */
914 	    ptr->mv_grfc.back = 0;      /* not supported */
915 	    ptr->mv_ovscan = scp->border;
916 	    if (scp == sc->cur_scp)
917 		save_kbd_state(scp);
918 	    ptr->mk_keylock = scp->status & LOCK_MASK;
919 	    return 0;
920 	}
921 	return EINVAL;
922     }
923 
924     case CONS_GETVERS:  	/* get version number */
925 	*(int*)data = 0x200;    /* version 2.0 */
926 	return 0;
927 
928     case CONS_IDLE:		/* see if the screen has been idle */
929 	/*
930 	 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
931 	 * the user process may have been writing something on the
932 	 * screen and syscons is not aware of it. Declare the screen
933 	 * is NOT idle if it is in one of these modes. But there is
934 	 * an exception to it; if a screen saver is running in the
935 	 * graphics mode in the current screen, we should say that the
936 	 * screen has been idle.
937 	 */
938 	*(int *)data = (sc->flags & SC_SCRN_IDLE)
939 		       && (!ISGRAPHSC(sc->cur_scp)
940 			   || (sc->cur_scp->status & SAVER_RUNNING));
941 	return 0;
942 
943     case CONS_SAVERMODE:	/* set saver mode */
944 	switch(*(int *)data) {
945 	case CONS_NO_SAVER:
946 	case CONS_USR_SAVER:
947 	    /* if a LKM screen saver is running, stop it first. */
948 	    scsplash_stick(FALSE);
949 	    saver_mode = *(int *)data;
950 	    s = spltty();
951 #ifdef DEV_SPLASH
952 	    if ((error = wait_scrn_saver_stop(NULL))) {
953 		splx(s);
954 		return error;
955 	    }
956 #endif
957 	    run_scrn_saver = TRUE;
958 	    if (saver_mode == CONS_USR_SAVER)
959 		scp->status |= SAVER_RUNNING;
960 	    else
961 		scp->status &= ~SAVER_RUNNING;
962 	    scsplash_stick(TRUE);
963 	    splx(s);
964 	    break;
965 	case CONS_LKM_SAVER:
966 	    s = spltty();
967 	    if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING))
968 		scp->status &= ~SAVER_RUNNING;
969 	    saver_mode = *(int *)data;
970 	    splx(s);
971 	    break;
972 	default:
973 	    return EINVAL;
974 	}
975 	return 0;
976 
977     case CONS_SAVERSTART:	/* immediately start/stop the screen saver */
978 	/*
979 	 * Note that this ioctl does not guarantee the screen saver
980 	 * actually starts or stops. It merely attempts to do so...
981 	 */
982 	s = spltty();
983 	run_scrn_saver = (*(int *)data != 0);
984 	if (run_scrn_saver)
985 	    sc->scrn_time_stamp -= scrn_blank_time;
986 	splx(s);
987 	return 0;
988 
989     case CONS_SCRSHOT:		/* get a screen shot */
990     {
991 	int retval, hist_rsz;
992 	size_t lsize, csize;
993 	vm_offset_t frbp, hstp;
994 	unsigned lnum;
995 	scrshot_t *ptr = (scrshot_t *)data;
996 	void *outp = ptr->buf;
997 
998 	if (ptr->x < 0 || ptr->y < 0 || ptr->xsize < 0 || ptr->ysize < 0)
999 		return EINVAL;
1000 	s = spltty();
1001 	if (ISGRAPHSC(scp)) {
1002 	    splx(s);
1003 	    return EOPNOTSUPP;
1004 	}
1005 	hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
1006 	if (((u_int)ptr->x + ptr->xsize) > scp->xsize ||
1007 	    ((u_int)ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
1008 	    splx(s);
1009 	    return EINVAL;
1010 	}
1011 
1012 	lsize = scp->xsize * sizeof(u_int16_t);
1013 	csize = ptr->xsize * sizeof(u_int16_t);
1014 	/* Pointer to the last line of framebuffer */
1015 	frbp = scp->vtb.vtb_buffer + scp->ysize * lsize + ptr->x *
1016 	       sizeof(u_int16_t);
1017 	/* Pointer to the last line of target buffer */
1018 	outp = (char *)outp + ptr->ysize * csize;
1019 	/* Pointer to the last line of history buffer */
1020 	if (scp->history != NULL)
1021 	    hstp = scp->history->vtb_buffer + sc_vtb_tail(scp->history) *
1022 		sizeof(u_int16_t) + ptr->x * sizeof(u_int16_t);
1023 	else
1024 	    hstp = 0;
1025 
1026 	retval = 0;
1027 	for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
1028 	    if (lnum < scp->ysize) {
1029 		frbp -= lsize;
1030 	    } else {
1031 		hstp -= lsize;
1032 		if (hstp < scp->history->vtb_buffer)
1033 		    hstp += scp->history->vtb_rows * lsize;
1034 		frbp = hstp;
1035 	    }
1036 	    if (lnum < ptr->y)
1037 		continue;
1038 	    outp = (char *)outp - csize;
1039 	    retval = copyout((void *)frbp, outp, csize);
1040 	    if (retval != 0)
1041 		break;
1042 	}
1043 	splx(s);
1044 	return retval;
1045     }
1046 
1047     case VT_SETMODE:    	/* set screen switcher mode */
1048     {
1049 	struct vt_mode *mode;
1050 	struct proc *p1;
1051 
1052 	mode = (struct vt_mode *)data;
1053 	DPRINTF(5, ("%s%d: VT_SETMODE ", SC_DRIVER_NAME, sc->unit));
1054 	if (scp->smode.mode == VT_PROCESS) {
1055 	    p1 = pfind(scp->pid);
1056     	    if (scp->proc == p1 && scp->proc != td->td_proc) {
1057 		if (p1)
1058 		    PROC_UNLOCK(p1);
1059 		DPRINTF(5, ("error EPERM\n"));
1060 		return EPERM;
1061 	    }
1062 	    if (p1)
1063 		PROC_UNLOCK(p1);
1064 	}
1065 	s = spltty();
1066 	if (mode->mode == VT_AUTO) {
1067 	    scp->smode.mode = VT_AUTO;
1068 	    scp->proc = NULL;
1069 	    scp->pid = 0;
1070 	    DPRINTF(5, ("VT_AUTO, "));
1071 	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
1072 		cnavailable(sc_consptr, TRUE);
1073 	    /* were we in the middle of the vty switching process? */
1074 	    if (finish_vt_rel(scp, TRUE, &s) == 0)
1075 		DPRINTF(5, ("reset WAIT_REL, "));
1076 	    if (finish_vt_acq(scp) == 0)
1077 		DPRINTF(5, ("reset WAIT_ACQ, "));
1078 	} else {
1079 	    if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig)
1080 		|| !ISSIGVALID(mode->frsig)) {
1081 		splx(s);
1082 		DPRINTF(5, ("error EINVAL\n"));
1083 		return EINVAL;
1084 	    }
1085 	    DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
1086 	    bcopy(data, &scp->smode, sizeof(struct vt_mode));
1087 	    scp->proc = td->td_proc;
1088 	    scp->pid = scp->proc->p_pid;
1089 	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
1090 		cnavailable(sc_consptr, FALSE);
1091 	}
1092 	splx(s);
1093 	DPRINTF(5, ("\n"));
1094 	return 0;
1095     }
1096 
1097     case VT_GETMODE:    	/* get screen switcher mode */
1098 	bcopy(&scp->smode, data, sizeof(struct vt_mode));
1099 	return 0;
1100 
1101 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1102     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1103     case _IO('v', 4):
1104 	ival = IOCPARM_IVAL(data);
1105 	data = (caddr_t)&ival;
1106 	/* FALLTHROUGH */
1107 #endif
1108     case VT_RELDISP:    	/* screen switcher ioctl */
1109 	s = spltty();
1110 	/*
1111 	 * This must be the current vty which is in the VT_PROCESS
1112 	 * switching mode...
1113 	 */
1114 	if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
1115 	    splx(s);
1116 	    return EINVAL;
1117 	}
1118 	/* ...and this process is controlling it. */
1119 	if (scp->proc != td->td_proc) {
1120 	    splx(s);
1121 	    return EPERM;
1122 	}
1123 	error = EINVAL;
1124 	switch(*(int *)data) {
1125 	case VT_FALSE:  	/* user refuses to release screen, abort */
1126 	    if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
1127 		DPRINTF(5, ("%s%d: VT_FALSE\n", SC_DRIVER_NAME, sc->unit));
1128 	    break;
1129 	case VT_TRUE:   	/* user has released screen, go on */
1130 	    if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
1131 		DPRINTF(5, ("%s%d: VT_TRUE\n", SC_DRIVER_NAME, sc->unit));
1132 	    break;
1133 	case VT_ACKACQ: 	/* acquire acknowledged, switch completed */
1134 	    if ((error = finish_vt_acq(scp)) == 0)
1135 		DPRINTF(5, ("%s%d: VT_ACKACQ\n", SC_DRIVER_NAME, sc->unit));
1136 	    break;
1137 	default:
1138 	    break;
1139 	}
1140 	splx(s);
1141 	return error;
1142 
1143     case VT_OPENQRY:    	/* return free virtual console */
1144 	for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
1145 	    tp = SC_DEV(sc, i);
1146 	    if (!tty_opened_ns(tp)) {
1147 		*(int *)data = i + 1;
1148 		return 0;
1149 	    }
1150 	}
1151 	return EINVAL;
1152 
1153 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1154     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1155     case _IO('v', 5):
1156 	ival = IOCPARM_IVAL(data);
1157 	data = (caddr_t)&ival;
1158 	/* FALLTHROUGH */
1159 #endif
1160     case VT_ACTIVATE:   	/* switch to screen *data */
1161 	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1162 	s = spltty();
1163 	error = sc_clean_up(sc->cur_scp);
1164 	splx(s);
1165 	if (error)
1166 	    return error;
1167 	error = sc_switch_scr(sc, i);
1168 	return (error);
1169 
1170 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1171     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1172     case _IO('v', 6):
1173 	ival = IOCPARM_IVAL(data);
1174 	data = (caddr_t)&ival;
1175 	/* FALLTHROUGH */
1176 #endif
1177     case VT_WAITACTIVE: 	/* wait for switch to occur */
1178 	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1179 	if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
1180 	    return EINVAL;
1181 	if (i == sc->cur_scp->index)
1182 	    return 0;
1183 	error = tsleep(VTY_WCHAN(sc, i), (PZERO + 1) | PCATCH, "waitvt", 0);
1184 	return error;
1185 
1186     case VT_GETACTIVE:		/* get active vty # */
1187 	*(int *)data = sc->cur_scp->index + 1;
1188 	return 0;
1189 
1190     case VT_GETINDEX:		/* get this vty # */
1191 	*(int *)data = scp->index + 1;
1192 	return 0;
1193 
1194     case VT_LOCKSWITCH:		/* prevent vty switching */
1195 	if ((*(int *)data) & 0x01)
1196 	    sc->flags |= SC_SCRN_VTYLOCK;
1197 	else
1198 	    sc->flags &= ~SC_SCRN_VTYLOCK;
1199 	return 0;
1200 
1201     case KDENABIO:      	/* allow io operations */
1202 	error = priv_check(td, PRIV_IO);
1203 	if (error != 0)
1204 	    return error;
1205 	error = securelevel_gt(td->td_ucred, 0);
1206 	if (error != 0)
1207 		return error;
1208 #ifdef __i386__
1209 	td->td_frame->tf_eflags |= PSL_IOPL;
1210 #elif defined(__amd64__)
1211 	td->td_frame->tf_rflags |= PSL_IOPL;
1212 #endif
1213 	return 0;
1214 
1215     case KDDISABIO:     	/* disallow io operations (default) */
1216 #ifdef __i386__
1217 	td->td_frame->tf_eflags &= ~PSL_IOPL;
1218 #elif defined(__amd64__)
1219 	td->td_frame->tf_rflags &= ~PSL_IOPL;
1220 #endif
1221 	return 0;
1222 
1223 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1224     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1225     case _IO('K', 20):
1226 	ival = IOCPARM_IVAL(data);
1227 	data = (caddr_t)&ival;
1228 	/* FALLTHROUGH */
1229 #endif
1230     case KDSKBSTATE:    	/* set keyboard state (locks) */
1231 	if (*(int *)data & ~LOCK_MASK)
1232 	    return EINVAL;
1233 	scp->status &= ~LOCK_MASK;
1234 	scp->status |= *(int *)data;
1235 	if (scp == sc->cur_scp)
1236 	    update_kbd_state(scp, scp->status, LOCK_MASK);
1237 	return 0;
1238 
1239     case KDGKBSTATE:    	/* get keyboard state (locks) */
1240 	if (scp == sc->cur_scp)
1241 	    save_kbd_state(scp);
1242 	*(int *)data = scp->status & LOCK_MASK;
1243 	return 0;
1244 
1245     case KDGETREPEAT:      	/* get keyboard repeat & delay rates */
1246     case KDSETREPEAT:      	/* set keyboard repeat & delay rates (new) */
1247 	error = kbdd_ioctl(sc->kbd, cmd, data);
1248 	if (error == ENOIOCTL)
1249 	    error = ENODEV;
1250 	return error;
1251 
1252 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1253     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1254     case _IO('K', 67):
1255 	ival = IOCPARM_IVAL(data);
1256 	data = (caddr_t)&ival;
1257 	/* FALLTHROUGH */
1258 #endif
1259     case KDSETRAD:      	/* set keyboard repeat & delay rates (old) */
1260 	if (*(int *)data & ~0x7f)
1261 	    return EINVAL;
1262 	error = kbdd_ioctl(sc->kbd, KDSETRAD, data);
1263 	if (error == ENOIOCTL)
1264 	    error = ENODEV;
1265 	return error;
1266 
1267 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1268     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1269     case _IO('K', 7):
1270 	ival = IOCPARM_IVAL(data);
1271 	data = (caddr_t)&ival;
1272 	/* FALLTHROUGH */
1273 #endif
1274     case KDSKBMODE:     	/* set keyboard mode */
1275 	switch (*(int *)data) {
1276 	case K_XLATE:   	/* switch to XLT ascii mode */
1277 	case K_RAW: 		/* switch to RAW scancode mode */
1278 	case K_CODE: 		/* switch to CODE mode */
1279 	    scp->kbd_mode = *(int *)data;
1280 	    if (scp == sc->cur_scp)
1281 		(void)kbdd_ioctl(sc->kbd, KDSKBMODE, data);
1282 	    return 0;
1283 	default:
1284 	    return EINVAL;
1285 	}
1286 	/* NOT REACHED */
1287 
1288     case KDGKBMODE:     	/* get keyboard mode */
1289 	*(int *)data = scp->kbd_mode;
1290 	return 0;
1291 
1292     case KDGKBINFO:
1293 	error = kbdd_ioctl(sc->kbd, cmd, data);
1294 	if (error == ENOIOCTL)
1295 	    error = ENODEV;
1296 	return error;
1297 
1298 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1299     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1300     case _IO('K', 8):
1301 	ival = IOCPARM_IVAL(data);
1302 	data = (caddr_t)&ival;
1303 	/* FALLTHROUGH */
1304 #endif
1305     case KDMKTONE:      	/* sound the bell */
1306 	if (*(int*)data)
1307 	    sc_bell(scp, (*(int*)data)&0xffff,
1308 		    (((*(int*)data)>>16)&0xffff)*hz/1000);
1309 	else
1310 	    sc_bell(scp, scp->bell_pitch, scp->bell_duration);
1311 	return 0;
1312 
1313 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1314     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1315     case _IO('K', 63):
1316 	ival = IOCPARM_IVAL(data);
1317 	data = (caddr_t)&ival;
1318 	/* FALLTHROUGH */
1319 #endif
1320     case KIOCSOUND:     	/* make tone (*data) hz */
1321 	if (scp == sc->cur_scp) {
1322 	    if (*(int *)data)
1323 		return sc_tone(*(int *)data);
1324 	    else
1325 		return sc_tone(0);
1326 	}
1327 	return 0;
1328 
1329     case KDGKBTYPE:     	/* get keyboard type */
1330 	error = kbdd_ioctl(sc->kbd, cmd, data);
1331 	if (error == ENOIOCTL) {
1332 	    /* always return something? XXX */
1333 	    *(int *)data = 0;
1334 	}
1335 	return 0;
1336 
1337 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1338     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1339     case _IO('K', 66):
1340 	ival = IOCPARM_IVAL(data);
1341 	data = (caddr_t)&ival;
1342 	/* FALLTHROUGH */
1343 #endif
1344     case KDSETLED:      	/* set keyboard LED status */
1345 	if (*(int *)data & ~LED_MASK)	/* FIXME: LOCK_MASK? */
1346 	    return EINVAL;
1347 	scp->status &= ~LED_MASK;
1348 	scp->status |= *(int *)data;
1349 	if (scp == sc->cur_scp)
1350 	    update_kbd_leds(scp, scp->status);
1351 	return 0;
1352 
1353     case KDGETLED:      	/* get keyboard LED status */
1354 	if (scp == sc->cur_scp)
1355 	    save_kbd_state(scp);
1356 	*(int *)data = scp->status & LED_MASK;
1357 	return 0;
1358 
1359     case KBADDKBD:		/* add/remove keyboard to/from mux */
1360     case KBRELKBD:
1361 	error = kbdd_ioctl(sc->kbd, cmd, data);
1362 	if (error == ENOIOCTL)
1363 	    error = ENODEV;
1364 	return error;
1365 
1366 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1367     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1368     case _IO('c', 110):
1369 	ival = IOCPARM_IVAL(data);
1370 	data = (caddr_t)&ival;
1371 	/* FALLTHROUGH */
1372 #endif
1373     case CONS_SETKBD: 		/* set the new keyboard */
1374 	{
1375 	    keyboard_t *newkbd;
1376 
1377 	    s = spltty();
1378 	    newkbd = kbd_get_keyboard(*(int *)data);
1379 	    if (newkbd == NULL) {
1380 		splx(s);
1381 		return EINVAL;
1382 	    }
1383 	    error = 0;
1384 	    if (sc->kbd != newkbd) {
1385 		i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
1386 				 (void *)&sc->keyboard, sckbdevent, sc);
1387 		/* i == newkbd->kb_index */
1388 		if (i >= 0) {
1389 		    if (sc->kbd != NULL) {
1390 			save_kbd_state(sc->cur_scp);
1391 			kbd_release(sc->kbd, (void *)&sc->keyboard);
1392 		    }
1393 		    sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */
1394 		    sc->keyboard = i;
1395 		    (void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1396 			      (caddr_t)&sc->cur_scp->kbd_mode);
1397 		    update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1398 				     LOCK_MASK);
1399 		} else {
1400 		    error = EPERM;	/* XXX */
1401 		}
1402 	    }
1403 	    splx(s);
1404 	    return error;
1405 	}
1406 
1407     case CONS_RELKBD: 		/* release the current keyboard */
1408 	s = spltty();
1409 	error = 0;
1410 	if (sc->kbd != NULL) {
1411 	    save_kbd_state(sc->cur_scp);
1412 	    error = kbd_release(sc->kbd, (void *)&sc->keyboard);
1413 	    if (error == 0) {
1414 		sc->kbd = NULL;
1415 		sc->keyboard = -1;
1416 	    }
1417 	}
1418 	splx(s);
1419 	return error;
1420 
1421     case CONS_GETTERM:		/* get the current terminal emulator info */
1422 	{
1423 	    sc_term_sw_t *sw;
1424 
1425 	    if (((term_info_t *)data)->ti_index == 0) {
1426 		sw = scp->tsw;
1427 	    } else {
1428 		sw = sc_term_match_by_number(((term_info_t *)data)->ti_index);
1429 	    }
1430 	    if (sw != NULL) {
1431 		strncpy(((term_info_t *)data)->ti_name, sw->te_name,
1432 			sizeof(((term_info_t *)data)->ti_name));
1433 		strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
1434 			sizeof(((term_info_t *)data)->ti_desc));
1435 		((term_info_t *)data)->ti_flags = 0;
1436 		return 0;
1437 	    } else {
1438 		((term_info_t *)data)->ti_name[0] = '\0';
1439 		((term_info_t *)data)->ti_desc[0] = '\0';
1440 		((term_info_t *)data)->ti_flags = 0;
1441 		return EINVAL;
1442 	    }
1443 	}
1444 
1445     case CONS_SETTERM:		/* set the current terminal emulator */
1446 	s = spltty();
1447 	error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
1448 	/* FIXME: what if scp == sc_console! XXX */
1449 	splx(s);
1450 	return error;
1451 
1452     case GIO_SCRNMAP:   	/* get output translation table */
1453 	bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
1454 	return 0;
1455 
1456     case PIO_SCRNMAP:   	/* set output translation table */
1457 	bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
1458 	for (i=0; i<sizeof(sc->scr_map); i++) {
1459 	    sc->scr_rmap[sc->scr_map[i]] = i;
1460 	}
1461 	return 0;
1462 
1463     case GIO_KEYMAP:		/* get keyboard translation table */
1464     case PIO_KEYMAP:		/* set keyboard translation table */
1465     case OGIO_KEYMAP:		/* get keyboard translation table (compat) */
1466     case OPIO_KEYMAP:		/* set keyboard translation table (compat) */
1467     case GIO_DEADKEYMAP:	/* get accent key translation table */
1468     case PIO_DEADKEYMAP:	/* set accent key translation table */
1469     case GETFKEY:		/* get function key string */
1470     case SETFKEY:		/* set function key string */
1471 	error = kbdd_ioctl(sc->kbd, cmd, data);
1472 	if (error == ENOIOCTL)
1473 	    error = ENODEV;
1474 	return error;
1475 
1476 #ifndef SC_NO_FONT_LOADING
1477 
1478     case PIO_FONT8x8:   	/* set 8x8 dot font */
1479 	if (!ISFONTAVAIL(sc->adp->va_flags))
1480 	    return ENXIO;
1481 	bcopy(data, sc->font_8, 8*256);
1482 	sc->fonts_loaded |= FONT_8;
1483 	/*
1484 	 * FONT KLUDGE
1485 	 * Always use the font page #0. XXX
1486 	 * Don't load if the current font size is not 8x8.
1487 	 */
1488 	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
1489 	    sc_load_font(sc->cur_scp, 0, 8, 8, sc->font_8, 0, 256);
1490 	return 0;
1491 
1492     case GIO_FONT8x8:   	/* get 8x8 dot font */
1493 	if (!ISFONTAVAIL(sc->adp->va_flags))
1494 	    return ENXIO;
1495 	if (sc->fonts_loaded & FONT_8) {
1496 	    bcopy(sc->font_8, data, 8*256);
1497 	    return 0;
1498 	}
1499 	else
1500 	    return ENXIO;
1501 
1502     case PIO_FONT8x14:  	/* set 8x14 dot font */
1503 	if (!ISFONTAVAIL(sc->adp->va_flags))
1504 	    return ENXIO;
1505 	bcopy(data, sc->font_14, 14*256);
1506 	sc->fonts_loaded |= FONT_14;
1507 	/*
1508 	 * FONT KLUDGE
1509 	 * Always use the font page #0. XXX
1510 	 * Don't load if the current font size is not 8x14.
1511 	 */
1512 	if (ISTEXTSC(sc->cur_scp)
1513 	    && (sc->cur_scp->font_size >= 14)
1514 	    && (sc->cur_scp->font_size < 16))
1515 	    sc_load_font(sc->cur_scp, 0, 14, 8, sc->font_14, 0, 256);
1516 	return 0;
1517 
1518     case GIO_FONT8x14:  	/* get 8x14 dot font */
1519 	if (!ISFONTAVAIL(sc->adp->va_flags))
1520 	    return ENXIO;
1521 	if (sc->fonts_loaded & FONT_14) {
1522 	    bcopy(sc->font_14, data, 14*256);
1523 	    return 0;
1524 	}
1525 	else
1526 	    return ENXIO;
1527 
1528     case PIO_FONT8x16:  	/* set 8x16 dot font */
1529 	if (!ISFONTAVAIL(sc->adp->va_flags))
1530 	    return ENXIO;
1531 	bcopy(data, sc->font_16, 16*256);
1532 	sc->fonts_loaded |= FONT_16;
1533 	/*
1534 	 * FONT KLUDGE
1535 	 * Always use the font page #0. XXX
1536 	 * Don't load if the current font size is not 8x16.
1537 	 */
1538 	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
1539 	    sc_load_font(sc->cur_scp, 0, 16, 8, sc->font_16, 0, 256);
1540 	return 0;
1541 
1542     case GIO_FONT8x16:  	/* get 8x16 dot font */
1543 	if (!ISFONTAVAIL(sc->adp->va_flags))
1544 	    return ENXIO;
1545 	if (sc->fonts_loaded & FONT_16) {
1546 	    bcopy(sc->font_16, data, 16*256);
1547 	    return 0;
1548 	}
1549 	else
1550 	    return ENXIO;
1551 
1552 #endif /* SC_NO_FONT_LOADING */
1553 
1554     default:
1555 	break;
1556     }
1557 
1558     return (ENOIOCTL);
1559 }
1560 
1561 static int
1562 consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
1563     struct thread *td)
1564 {
1565 
1566 	return sctty_ioctl(dev->si_drv1, cmd, data, td);
1567 }
1568 
1569 static int
1570 consolectl_close(struct cdev *dev, int flags, int mode, struct thread *td)
1571 {
1572 #ifndef SC_NO_SYSMOUSE
1573 	mouse_info_t info;
1574 	memset(&info, 0, sizeof(info));
1575 	info.operation = MOUSE_ACTION;
1576 
1577 	/*
1578 	 * Make sure all buttons are released when moused and other
1579 	 * console daemons exit, so that no buttons are left pressed.
1580 	 */
1581 	(void) sctty_ioctl(dev->si_drv1, CONS_MOUSECTL, (caddr_t)&info, td);
1582 #endif
1583 	return (0);
1584 }
1585 
1586 static void
1587 sc_cnprobe(struct consdev *cp)
1588 {
1589     int unit;
1590     int flags;
1591 
1592     if (getenv("hw.syscons.disable")) {
1593 	cp->cn_pri = CN_DEAD;
1594 	return;
1595     }
1596 
1597     cp->cn_pri = sc_get_cons_priority(&unit, &flags);
1598 
1599     /* a video card is always required */
1600     if (!scvidprobe(unit, flags, TRUE))
1601 	cp->cn_pri = CN_DEAD;
1602 
1603     /* syscons will become console even when there is no keyboard */
1604     sckbdprobe(unit, flags, TRUE);
1605 
1606     if (cp->cn_pri == CN_DEAD)
1607 	return;
1608 
1609     /* initialize required fields */
1610     strcpy(cp->cn_name, "ttyv0");
1611 }
1612 
1613 static void
1614 sc_cninit(struct consdev *cp)
1615 {
1616     int unit;
1617     int flags;
1618 
1619     sc_get_cons_priority(&unit, &flags);
1620     scinit(unit, flags | SC_KERNEL_CONSOLE);
1621     sc_console_unit = unit;
1622     sc_console = sc_get_stat(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1623     sc_consptr = cp;
1624 }
1625 
1626 static void
1627 sc_cnterm(struct consdev *cp)
1628 {
1629     /* we are not the kernel console any more, release everything */
1630 
1631     if (sc_console_unit < 0)
1632 	return;			/* shouldn't happen */
1633 
1634 #if 0 /* XXX */
1635     sc_clear_screen(sc_console);
1636     sccnupdate(sc_console);
1637 #endif
1638 
1639     scterm(sc_console_unit, SC_KERNEL_CONSOLE);
1640     sc_console_unit = -1;
1641     sc_console = NULL;
1642 }
1643 
1644 static void
1645 sc_cngrab(struct consdev *cp)
1646 {
1647     scr_stat *scp;
1648 
1649     if (!cold &&
1650 	sc_console->sc->cur_scp->index != sc_console->index &&
1651 	sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
1652 	sc_console->smode.mode == VT_AUTO)
1653 	    sc_switch_scr(sc_console->sc, sc_console->index);
1654 
1655     scp = sc_console->sc->cur_scp;
1656 
1657     if (scp->sc->kbd == NULL)
1658 	return;
1659 
1660     if (scp->grabbed++ > 0)
1661 	return;
1662 
1663     /*
1664      * Make sure the keyboard is accessible even when the kbd device
1665      * driver is disabled.
1666      */
1667     kbdd_enable(scp->sc->kbd);
1668 
1669     /* we shall always use the keyboard in the XLATE mode here */
1670     scp->kbd_prev_mode = scp->kbd_mode;
1671     scp->kbd_mode = K_XLATE;
1672     (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1673 
1674     kbdd_poll(scp->sc->kbd, TRUE);
1675 }
1676 
1677 static void
1678 sc_cnungrab(struct consdev *cp)
1679 {
1680     scr_stat *scp;
1681 
1682     scp = sc_console->sc->cur_scp;	/* XXX */
1683     if (scp->sc->kbd == NULL)
1684 	return;
1685 
1686     if (--scp->grabbed > 0)
1687 	return;
1688 
1689     kbdd_poll(scp->sc->kbd, FALSE);
1690 
1691     scp->kbd_mode = scp->kbd_prev_mode;
1692     (void)kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1693     kbdd_disable(scp->sc->kbd);
1694 }
1695 
1696 static void
1697 sc_cnputc(struct consdev *cd, int c)
1698 {
1699     u_char buf[1];
1700     scr_stat *scp = sc_console;
1701 #ifndef SC_NO_HISTORY
1702 #if 0
1703     struct tty *tp;
1704 #endif
1705 #endif /* !SC_NO_HISTORY */
1706     int s;
1707 
1708     /* assert(sc_console != NULL) */
1709 
1710 #ifndef SC_NO_HISTORY
1711     if (scp == scp->sc->cur_scp && scp->status & SLKED) {
1712 	scp->status &= ~SLKED;
1713 	update_kbd_state(scp, scp->status, SLKED);
1714 	if (scp->status & BUFFER_SAVED) {
1715 	    if (!sc_hist_restore(scp))
1716 		sc_remove_cutmarking(scp);
1717 	    scp->status &= ~BUFFER_SAVED;
1718 	    scp->status |= CURSOR_ENABLED;
1719 	    sc_draw_cursor_image(scp);
1720 	}
1721 #if 0
1722 	/*
1723 	 * XXX: Now that TTY's have their own locks, we cannot process
1724 	 * any data after disabling scroll lock. cnputs already holds a
1725 	 * spinlock.
1726 	 */
1727 	tp = SC_DEV(scp->sc, scp->index);
1728 	/* XXX "tp" can be NULL */
1729 	tty_lock(tp);
1730 	if (tty_opened(tp))
1731 	    sctty_outwakeup(tp);
1732 	tty_unlock(tp);
1733 #endif
1734     }
1735 #endif /* !SC_NO_HISTORY */
1736 
1737     buf[0] = c;
1738     sc_puts(scp, buf, 1, 1);
1739 
1740     s = spltty();	/* block sckbdevent and scrn_timer */
1741     sccnupdate(scp);
1742     splx(s);
1743 }
1744 
1745 static int
1746 sc_cngetc(struct consdev *cd)
1747 {
1748     static struct fkeytab fkey;
1749     static int fkeycp;
1750     scr_stat *scp;
1751     const u_char *p;
1752     int s = spltty();	/* block sckbdevent and scrn_timer while we poll */
1753     int c;
1754 
1755     /* assert(sc_console != NULL) */
1756 
1757     /*
1758      * Stop the screen saver and update the screen if necessary.
1759      * What if we have been running in the screen saver code... XXX
1760      */
1761     sc_touch_scrn_saver();
1762     scp = sc_console->sc->cur_scp;	/* XXX */
1763     sccnupdate(scp);
1764 
1765     if (fkeycp < fkey.len) {
1766 	splx(s);
1767 	return fkey.str[fkeycp++];
1768     }
1769 
1770     if (scp->sc->kbd == NULL) {
1771 	splx(s);
1772 	return -1;
1773     }
1774 
1775     c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK);
1776 
1777     switch (KEYFLAGS(c)) {
1778     case 0:	/* normal char */
1779 	return KEYCHAR(c);
1780     case FKEY:	/* function key */
1781 	p = (*scp->tsw->te_fkeystr)(scp, c);
1782 	if (p != NULL) {
1783 	    fkey.len = strlen(p);
1784 	    bcopy(p, fkey.str, fkey.len);
1785 	    fkeycp = 1;
1786 	    return fkey.str[0];
1787 	}
1788 	p = kbdd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
1789 	fkey.len = fkeycp;
1790 	if ((p != NULL) && (fkey.len > 0)) {
1791 	    bcopy(p, fkey.str, fkey.len);
1792 	    fkeycp = 1;
1793 	    return fkey.str[0];
1794 	}
1795 	return c;	/* XXX */
1796     case NOKEY:
1797     case ERRKEY:
1798     default:
1799 	return -1;
1800     }
1801     /* NOT REACHED */
1802 }
1803 
1804 static void
1805 sccnupdate(scr_stat *scp)
1806 {
1807     /* this is a cut-down version of scrn_timer()... */
1808 
1809     if (suspend_in_progress || scp->sc->font_loading_in_progress)
1810 	return;
1811 
1812     if (debugger > 0 || panicstr || shutdown_in_progress) {
1813 	sc_touch_scrn_saver();
1814     } else if (scp != scp->sc->cur_scp) {
1815 	return;
1816     }
1817 
1818     if (!run_scrn_saver)
1819 	scp->sc->flags &= ~SC_SCRN_IDLE;
1820 #ifdef DEV_SPLASH
1821     if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
1822 	if (scp->sc->flags & SC_SCRN_BLANKED)
1823             stop_scrn_saver(scp->sc, current_saver);
1824 #endif
1825 
1826     if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress
1827 	|| scp->sc->switch_in_progress)
1828 	return;
1829     /*
1830      * FIXME: unlike scrn_timer(), we call scrn_update() from here even
1831      * when write_in_progress is non-zero.  XXX
1832      */
1833 
1834     if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
1835 	scrn_update(scp, TRUE);
1836 }
1837 
1838 static void
1839 scrn_timer(void *arg)
1840 {
1841 #ifndef PC98
1842     static time_t kbd_time_stamp = 0;
1843 #endif
1844     sc_softc_t *sc;
1845     scr_stat *scp;
1846     int again, rate;
1847 
1848     again = (arg != NULL);
1849     if (arg != NULL)
1850 	sc = (sc_softc_t *)arg;
1851     else if (sc_console != NULL)
1852 	sc = sc_console->sc;
1853     else
1854 	return;
1855 
1856     /* find the vty to update */
1857     scp = sc->cur_scp;
1858 
1859     /* don't do anything when we are performing some I/O operations */
1860     if (suspend_in_progress || sc->font_loading_in_progress)
1861 	goto done;
1862 
1863 #ifndef PC98
1864     if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
1865 	/* try to allocate a keyboard automatically */
1866 	if (kbd_time_stamp != time_uptime) {
1867 	    kbd_time_stamp = time_uptime;
1868 	    sc->keyboard = sc_allocate_keyboard(sc, -1);
1869 	    if (sc->keyboard >= 0) {
1870 		sc->kbd = kbd_get_keyboard(sc->keyboard);
1871 		(void)kbdd_ioctl(sc->kbd, KDSKBMODE,
1872 			  (caddr_t)&sc->cur_scp->kbd_mode);
1873 		update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1874 				 LOCK_MASK);
1875 	    }
1876 	}
1877     }
1878 #endif /* PC98 */
1879 
1880     /* should we stop the screen saver? */
1881     if (debugger > 0 || panicstr || shutdown_in_progress)
1882 	sc_touch_scrn_saver();
1883     if (run_scrn_saver) {
1884 	if (time_uptime > sc->scrn_time_stamp + scrn_blank_time)
1885 	    sc->flags |= SC_SCRN_IDLE;
1886 	else
1887 	    sc->flags &= ~SC_SCRN_IDLE;
1888     } else {
1889 	sc->scrn_time_stamp = time_uptime;
1890 	sc->flags &= ~SC_SCRN_IDLE;
1891 	if (scrn_blank_time > 0)
1892 	    run_scrn_saver = TRUE;
1893     }
1894 #ifdef DEV_SPLASH
1895     if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
1896 	if (sc->flags & SC_SCRN_BLANKED)
1897             stop_scrn_saver(sc, current_saver);
1898 #endif
1899 
1900     /* should we just return ? */
1901     if (sc->blink_in_progress || sc->switch_in_progress
1902 	|| sc->write_in_progress)
1903 	goto done;
1904 
1905     /* Update the screen */
1906     scp = sc->cur_scp;		/* cur_scp may have changed... */
1907     if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1908 	scrn_update(scp, TRUE);
1909 
1910 #ifdef DEV_SPLASH
1911     /* should we activate the screen saver? */
1912     if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
1913 	if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
1914 	    (*current_saver)(sc, TRUE);
1915 #endif
1916 
1917 done:
1918     if (again) {
1919 	/*
1920 	 * Use reduced "refresh" rate if we are in graphics and that is not a
1921 	 * graphical screen saver.  In such case we just have nothing to do.
1922 	 */
1923 	if (ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1924 	    rate = 2;
1925 	else
1926 	    rate = 30;
1927 	callout_reset_sbt(&sc->ctimeout, SBT_1S / rate, 0,
1928 	    scrn_timer, sc, C_PREL(1));
1929     }
1930 }
1931 
1932 static int
1933 and_region(int *s1, int *e1, int s2, int e2)
1934 {
1935     if (*e1 < s2 || e2 < *s1)
1936 	return FALSE;
1937     *s1 = imax(*s1, s2);
1938     *e1 = imin(*e1, e2);
1939     return TRUE;
1940 }
1941 
1942 static void
1943 scrn_update(scr_stat *scp, int show_cursor)
1944 {
1945     int start;
1946     int end;
1947     int s;
1948     int e;
1949 
1950     /* assert(scp == scp->sc->cur_scp) */
1951 
1952     SC_VIDEO_LOCK(scp->sc);
1953 
1954 #ifndef SC_NO_CUTPASTE
1955     /* remove the previous mouse pointer image if necessary */
1956     if (scp->status & MOUSE_VISIBLE) {
1957 	s = scp->mouse_pos;
1958 	e = scp->mouse_pos + scp->xsize + 1;
1959 	if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN))
1960 	    || and_region(&s, &e, scp->start, scp->end)
1961 	    || ((scp->status & CURSOR_ENABLED) &&
1962 		(scp->cursor_pos != scp->cursor_oldpos) &&
1963 		(and_region(&s, &e, scp->cursor_pos, scp->cursor_pos)
1964 		 || and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos)))) {
1965 	    sc_remove_mouse_image(scp);
1966 	    if (scp->end >= scp->xsize*scp->ysize)
1967 		scp->end = scp->xsize*scp->ysize - 1;
1968 	}
1969     }
1970 #endif /* !SC_NO_CUTPASTE */
1971 
1972 #if 1
1973     /* debug: XXX */
1974     if (scp->end >= scp->xsize*scp->ysize) {
1975 	printf("scrn_update(): scp->end %d > size_of_screen!!\n", scp->end);
1976 	scp->end = scp->xsize*scp->ysize - 1;
1977     }
1978     if (scp->start < 0) {
1979 	printf("scrn_update(): scp->start %d < 0\n", scp->start);
1980 	scp->start = 0;
1981     }
1982 #endif
1983 
1984     /* update screen image */
1985     if (scp->start <= scp->end)  {
1986 	if (scp->mouse_cut_end >= 0) {
1987 	    /* there is a marked region for cut & paste */
1988 	    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
1989 		start = scp->mouse_cut_start;
1990 		end = scp->mouse_cut_end;
1991 	    } else {
1992 		start = scp->mouse_cut_end;
1993 		end = scp->mouse_cut_start - 1;
1994 	    }
1995 	    s = start;
1996 	    e = end;
1997 	    /* does the cut-mark region overlap with the update region? */
1998 	    if (and_region(&s, &e, scp->start, scp->end)) {
1999 		(*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
2000 		s = 0;
2001 		e = start - 1;
2002 		if (and_region(&s, &e, scp->start, scp->end))
2003 		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
2004 		s = end + 1;
2005 		e = scp->xsize*scp->ysize - 1;
2006 		if (and_region(&s, &e, scp->start, scp->end))
2007 		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
2008 	    } else {
2009 		(*scp->rndr->draw)(scp, scp->start,
2010 				   scp->end - scp->start + 1, FALSE);
2011 	    }
2012 	} else {
2013 	    (*scp->rndr->draw)(scp, scp->start,
2014 			       scp->end - scp->start + 1, FALSE);
2015 	}
2016     }
2017 
2018     /* we are not to show the cursor and the mouse pointer... */
2019     if (!show_cursor) {
2020         scp->end = 0;
2021         scp->start = scp->xsize*scp->ysize - 1;
2022 	SC_VIDEO_UNLOCK(scp->sc);
2023 	return;
2024     }
2025 
2026     /* update cursor image */
2027     if (scp->status & CURSOR_ENABLED) {
2028 	s = scp->start;
2029 	e = scp->end;
2030         /* did cursor move since last time ? */
2031         if (scp->cursor_pos != scp->cursor_oldpos) {
2032             /* do we need to remove old cursor image ? */
2033             if (!and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
2034                 sc_remove_cursor_image(scp);
2035             sc_draw_cursor_image(scp);
2036         } else {
2037             if (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos))
2038 		/* cursor didn't move, but has been overwritten */
2039 		sc_draw_cursor_image(scp);
2040 	    else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
2041 		/* if it's a blinking cursor, update it */
2042 		(*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
2043 					   sc_inside_cutmark(scp,
2044 					       scp->cursor_pos));
2045         }
2046     }
2047 
2048 #ifndef SC_NO_CUTPASTE
2049     /* update "pseudo" mouse pointer image */
2050     if (scp->sc->flags & SC_MOUSE_ENABLED) {
2051 	if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
2052 	    scp->status &= ~MOUSE_MOVED;
2053 	    sc_draw_mouse_image(scp);
2054 	}
2055     }
2056 #endif /* SC_NO_CUTPASTE */
2057 
2058     scp->end = 0;
2059     scp->start = scp->xsize*scp->ysize - 1;
2060 
2061     SC_VIDEO_UNLOCK(scp->sc);
2062 }
2063 
2064 #ifdef DEV_SPLASH
2065 static int
2066 scsplash_callback(int event, void *arg)
2067 {
2068     sc_softc_t *sc;
2069     int error;
2070 
2071     sc = (sc_softc_t *)arg;
2072 
2073     switch (event) {
2074     case SPLASH_INIT:
2075 	if (add_scrn_saver(scsplash_saver) == 0) {
2076 	    sc->flags &= ~SC_SAVER_FAILED;
2077 	    run_scrn_saver = TRUE;
2078 	    if (cold && !(boothowto & RB_VERBOSE)) {
2079 		scsplash_stick(TRUE);
2080 		(*current_saver)(sc, TRUE);
2081 	    }
2082 	}
2083 	return 0;
2084 
2085     case SPLASH_TERM:
2086 	if (current_saver == scsplash_saver) {
2087 	    scsplash_stick(FALSE);
2088 	    error = remove_scrn_saver(scsplash_saver);
2089 	    if (error)
2090 		return error;
2091 	}
2092 	return 0;
2093 
2094     default:
2095 	return EINVAL;
2096     }
2097 }
2098 
2099 static void
2100 scsplash_saver(sc_softc_t *sc, int show)
2101 {
2102     static int busy = FALSE;
2103     scr_stat *scp;
2104 
2105     if (busy)
2106 	return;
2107     busy = TRUE;
2108 
2109     scp = sc->cur_scp;
2110     if (show) {
2111 	if (!(sc->flags & SC_SAVER_FAILED)) {
2112 	    if (!(sc->flags & SC_SCRN_BLANKED))
2113 		set_scrn_saver_mode(scp, -1, NULL, 0);
2114 	    switch (splash(sc->adp, TRUE)) {
2115 	    case 0:		/* succeeded */
2116 		break;
2117 	    case EAGAIN:	/* try later */
2118 		restore_scrn_saver_mode(scp, FALSE);
2119 		sc_touch_scrn_saver();		/* XXX */
2120 		break;
2121 	    default:
2122 		sc->flags |= SC_SAVER_FAILED;
2123 		scsplash_stick(FALSE);
2124 		restore_scrn_saver_mode(scp, TRUE);
2125 		printf("scsplash_saver(): failed to put up the image\n");
2126 		break;
2127 	    }
2128 	}
2129     } else if (!sticky_splash) {
2130 	if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0))
2131 	    restore_scrn_saver_mode(scp, TRUE);
2132     }
2133     busy = FALSE;
2134 }
2135 
2136 static int
2137 add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2138 {
2139 #if 0
2140     int error;
2141 
2142     if (current_saver != none_saver) {
2143 	error = remove_scrn_saver(current_saver);
2144 	if (error)
2145 	    return error;
2146     }
2147 #endif
2148     if (current_saver != none_saver)
2149 	return EBUSY;
2150 
2151     run_scrn_saver = FALSE;
2152     saver_mode = CONS_LKM_SAVER;
2153     current_saver = this_saver;
2154     return 0;
2155 }
2156 
2157 static int
2158 remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2159 {
2160     if (current_saver != this_saver)
2161 	return EINVAL;
2162 
2163 #if 0
2164     /*
2165      * In order to prevent `current_saver' from being called by
2166      * the timeout routine `scrn_timer()' while we manipulate
2167      * the saver list, we shall set `current_saver' to `none_saver'
2168      * before stopping the current saver, rather than blocking by `splXX()'.
2169      */
2170     current_saver = none_saver;
2171     if (scrn_blanked)
2172         stop_scrn_saver(this_saver);
2173 #endif
2174 
2175     /* unblank all blanked screens */
2176     wait_scrn_saver_stop(NULL);
2177     if (scrn_blanked)
2178 	return EBUSY;
2179 
2180     current_saver = none_saver;
2181     return 0;
2182 }
2183 
2184 static int
2185 set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
2186 {
2187     int s;
2188 
2189     /* assert(scp == scp->sc->cur_scp) */
2190     s = spltty();
2191     if (!ISGRAPHSC(scp))
2192 	sc_remove_cursor_image(scp);
2193     scp->splash_save_mode = scp->mode;
2194     scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
2195     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
2196     scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
2197     scp->sc->flags |= SC_SCRN_BLANKED;
2198     ++scrn_blanked;
2199     splx(s);
2200     if (mode < 0)
2201 	return 0;
2202     scp->mode = mode;
2203     if (set_mode(scp) == 0) {
2204 	if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
2205 	    scp->status |= GRAPHICS_MODE;
2206 #ifndef SC_NO_PALETTE_LOADING
2207 	if (pal != NULL)
2208 	    vidd_load_palette(scp->sc->adp, pal);
2209 #endif
2210 	sc_set_border(scp, border);
2211 	return 0;
2212     } else {
2213 	s = spltty();
2214 	scp->mode = scp->splash_save_mode;
2215 	scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2216 	scp->status |= scp->splash_save_status;
2217 	splx(s);
2218 	return 1;
2219     }
2220 }
2221 
2222 static int
2223 restore_scrn_saver_mode(scr_stat *scp, int changemode)
2224 {
2225     int mode;
2226     int status;
2227     int s;
2228 
2229     /* assert(scp == scp->sc->cur_scp) */
2230     s = spltty();
2231     mode = scp->mode;
2232     status = scp->status;
2233     scp->mode = scp->splash_save_mode;
2234     scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2235     scp->status |= scp->splash_save_status;
2236     scp->sc->flags &= ~SC_SCRN_BLANKED;
2237     if (!changemode) {
2238 	if (!ISGRAPHSC(scp))
2239 	    sc_draw_cursor_image(scp);
2240 	--scrn_blanked;
2241 	splx(s);
2242 	return 0;
2243     }
2244     if (set_mode(scp) == 0) {
2245 #ifndef SC_NO_PALETTE_LOADING
2246 #ifdef SC_PIXEL_MODE
2247 	if (scp->sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2248 	    vidd_load_palette(scp->sc->adp, scp->sc->palette2);
2249 	else
2250 #endif
2251 	vidd_load_palette(scp->sc->adp, scp->sc->palette);
2252 #endif
2253 	--scrn_blanked;
2254 	splx(s);
2255 	return 0;
2256     } else {
2257 	scp->mode = mode;
2258 	scp->status = status;
2259 	splx(s);
2260 	return 1;
2261     }
2262 }
2263 
2264 static void
2265 stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
2266 {
2267     (*saver)(sc, FALSE);
2268     run_scrn_saver = FALSE;
2269     /* the screen saver may have chosen not to stop after all... */
2270     if (sc->flags & SC_SCRN_BLANKED)
2271 	return;
2272 
2273     mark_all(sc->cur_scp);
2274     if (sc->delayed_next_scr)
2275 	sc_switch_scr(sc, sc->delayed_next_scr - 1);
2276     if (debugger == 0)
2277 	wakeup(&scrn_blanked);
2278 }
2279 
2280 static int
2281 wait_scrn_saver_stop(sc_softc_t *sc)
2282 {
2283     int error = 0;
2284 
2285     while (scrn_blanked > 0) {
2286 	run_scrn_saver = FALSE;
2287 	if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
2288 	    error = 0;
2289 	    break;
2290 	}
2291 	error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
2292 	if ((error != 0) && (error != ERESTART))
2293 	    break;
2294     }
2295     run_scrn_saver = FALSE;
2296     return error;
2297 }
2298 #endif /* DEV_SPLASH */
2299 
2300 void
2301 sc_touch_scrn_saver(void)
2302 {
2303     scsplash_stick(FALSE);
2304     run_scrn_saver = FALSE;
2305 }
2306 
2307 int
2308 sc_switch_scr(sc_softc_t *sc, u_int next_scr)
2309 {
2310     scr_stat *cur_scp;
2311     struct tty *tp;
2312     struct proc *p;
2313     int s;
2314 
2315     DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
2316 
2317     if (sc->cur_scp == NULL)
2318 	return (0);
2319 
2320     /* prevent switch if previously requested */
2321     if (sc->flags & SC_SCRN_VTYLOCK) {
2322 	    sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
2323 		sc->cur_scp->bell_duration);
2324 	    return EPERM;
2325     }
2326 
2327     /* delay switch if the screen is blanked or being updated */
2328     if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress
2329 	|| sc->blink_in_progress) {
2330 	sc->delayed_next_scr = next_scr + 1;
2331 	sc_touch_scrn_saver();
2332 	DPRINTF(5, ("switch delayed\n"));
2333 	return 0;
2334     }
2335     sc->delayed_next_scr = 0;
2336 
2337     s = spltty();
2338     cur_scp = sc->cur_scp;
2339 
2340     /* we are in the middle of the vty switching process... */
2341     if (sc->switch_in_progress
2342 	&& (cur_scp->smode.mode == VT_PROCESS)
2343 	&& cur_scp->proc) {
2344 	p = pfind(cur_scp->pid);
2345 	if (cur_scp->proc != p) {
2346 	    if (p)
2347 		PROC_UNLOCK(p);
2348 	    /*
2349 	     * The controlling process has died!!.  Do some clean up.
2350 	     * NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
2351 	     * are not reset here yet; they will be cleared later.
2352 	     */
2353 	    DPRINTF(5, ("cur_scp controlling process %d died, ",
2354 	       cur_scp->pid));
2355 	    if (cur_scp->status & SWITCH_WAIT_REL) {
2356 		/*
2357 		 * Force the previous switch to finish, but return now
2358 		 * with error.
2359 		 */
2360 		DPRINTF(5, ("reset WAIT_REL, "));
2361 		finish_vt_rel(cur_scp, TRUE, &s);
2362 		splx(s);
2363 		DPRINTF(5, ("finishing previous switch\n"));
2364 		return EINVAL;
2365 	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2366 		/* let's assume screen switch has been completed. */
2367 		DPRINTF(5, ("reset WAIT_ACQ, "));
2368 		finish_vt_acq(cur_scp);
2369 	    } else {
2370 		/*
2371 	 	 * We are in between screen release and acquisition, and
2372 		 * reached here via scgetc() or scrn_timer() which has
2373 		 * interrupted exchange_scr(). Don't do anything stupid.
2374 		 */
2375 		DPRINTF(5, ("waiting nothing, "));
2376 	    }
2377 	} else {
2378 	    if (p)
2379 		PROC_UNLOCK(p);
2380 	    /*
2381 	     * The controlling process is alive, but not responding...
2382 	     * It is either buggy or it may be just taking time.
2383 	     * The following code is a gross kludge to cope with this
2384 	     * problem for which there is no clean solution. XXX
2385 	     */
2386 	    if (cur_scp->status & SWITCH_WAIT_REL) {
2387 		switch (sc->switch_in_progress++) {
2388 		case 1:
2389 		    break;
2390 		case 2:
2391 		    DPRINTF(5, ("sending relsig again, "));
2392 		    signal_vt_rel(cur_scp);
2393 		    break;
2394 		case 3:
2395 		    break;
2396 		case 4:
2397 		default:
2398 		    /*
2399 		     * Act as if the controlling program returned
2400 		     * VT_FALSE.
2401 		     */
2402 		    DPRINTF(5, ("force reset WAIT_REL, "));
2403 		    finish_vt_rel(cur_scp, FALSE, &s);
2404 		    splx(s);
2405 		    DPRINTF(5, ("act as if VT_FALSE was seen\n"));
2406 		    return EINVAL;
2407 		}
2408 	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2409 		switch (sc->switch_in_progress++) {
2410 		case 1:
2411 		    break;
2412 		case 2:
2413 		    DPRINTF(5, ("sending acqsig again, "));
2414 		    signal_vt_acq(cur_scp);
2415 		    break;
2416 		case 3:
2417 		    break;
2418 		case 4:
2419 		default:
2420 		     /* clear the flag and finish the previous switch */
2421 		    DPRINTF(5, ("force reset WAIT_ACQ, "));
2422 		    finish_vt_acq(cur_scp);
2423 		    break;
2424 		}
2425 	    }
2426 	}
2427     }
2428 
2429     /*
2430      * Return error if an invalid argument is given, or vty switch
2431      * is still in progress.
2432      */
2433     if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys)
2434 	|| sc->switch_in_progress) {
2435 	splx(s);
2436 	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2437 	DPRINTF(5, ("error 1\n"));
2438 	return EINVAL;
2439     }
2440 
2441     /*
2442      * Don't allow switching away from the graphics mode vty
2443      * if the switch mode is VT_AUTO, unless the next vty is the same
2444      * as the current or the current vty has been closed (but showing).
2445      */
2446     tp = SC_DEV(sc, cur_scp->index);
2447     if ((cur_scp->index != next_scr)
2448 	&& tty_opened_ns(tp)
2449 	&& (cur_scp->smode.mode == VT_AUTO)
2450 	&& ISGRAPHSC(cur_scp)) {
2451 	splx(s);
2452 	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2453 	DPRINTF(5, ("error, graphics mode\n"));
2454 	return EINVAL;
2455     }
2456 
2457     /*
2458      * Is the wanted vty open? Don't allow switching to a closed vty.
2459      * If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
2460      * Note that we always allow the user to switch to the kernel
2461      * console even if it is closed.
2462      */
2463     if ((sc_console == NULL) || (next_scr != sc_console->index)) {
2464 	tp = SC_DEV(sc, next_scr);
2465 	if (!tty_opened_ns(tp)) {
2466 	    splx(s);
2467 	    sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2468 	    DPRINTF(5, ("error 2, requested vty isn't open!\n"));
2469 	    return EINVAL;
2470 	}
2471 	if ((debugger > 0) && (SC_STAT(tp)->smode.mode == VT_PROCESS)) {
2472 	    splx(s);
2473 	    DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n"));
2474 	    return EINVAL;
2475 	}
2476     }
2477 
2478     /* this is the start of vty switching process... */
2479     ++sc->switch_in_progress;
2480     sc->old_scp = cur_scp;
2481     sc->new_scp = sc_get_stat(SC_DEV(sc, next_scr));
2482     if (sc->new_scp == sc->old_scp) {
2483 	sc->switch_in_progress = 0;
2484 	/*
2485 	 * XXX wakeup() locks the scheduler lock which will hang if
2486 	 * the lock is in an in-between state, e.g., when we stop at
2487 	 * a breakpoint at fork_exit.  It has always been wrong to call
2488 	 * wakeup() when the debugger is active.  In RELENG_4, wakeup()
2489 	 * is supposed to be locked by splhigh(), but the debugger may
2490 	 * be invoked at splhigh().
2491 	 */
2492 	if (debugger == 0)
2493 	    wakeup(VTY_WCHAN(sc,next_scr));
2494 	splx(s);
2495 	DPRINTF(5, ("switch done (new == old)\n"));
2496 	return 0;
2497     }
2498 
2499     /* has controlling process died? */
2500     vt_proc_alive(sc->old_scp);
2501     vt_proc_alive(sc->new_scp);
2502 
2503     /* wait for the controlling process to release the screen, if necessary */
2504     if (signal_vt_rel(sc->old_scp)) {
2505 	splx(s);
2506 	return 0;
2507     }
2508 
2509     /* go set up the new vty screen */
2510     splx(s);
2511     exchange_scr(sc);
2512     s = spltty();
2513 
2514     /* wake up processes waiting for this vty */
2515     if (debugger == 0)
2516 	wakeup(VTY_WCHAN(sc,next_scr));
2517 
2518     /* wait for the controlling process to acknowledge, if necessary */
2519     if (signal_vt_acq(sc->cur_scp)) {
2520 	splx(s);
2521 	return 0;
2522     }
2523 
2524     sc->switch_in_progress = 0;
2525     if (sc->unit == sc_console_unit)
2526 	cnavailable(sc_consptr,  TRUE);
2527     splx(s);
2528     DPRINTF(5, ("switch done\n"));
2529 
2530     return 0;
2531 }
2532 
2533 static int
2534 do_switch_scr(sc_softc_t *sc, int s)
2535 {
2536     vt_proc_alive(sc->new_scp);
2537 
2538     splx(s);
2539     exchange_scr(sc);
2540     s = spltty();
2541     /* sc->cur_scp == sc->new_scp */
2542     wakeup(VTY_WCHAN(sc,sc->cur_scp->index));
2543 
2544     /* wait for the controlling process to acknowledge, if necessary */
2545     if (!signal_vt_acq(sc->cur_scp)) {
2546 	sc->switch_in_progress = 0;
2547 	if (sc->unit == sc_console_unit)
2548 	    cnavailable(sc_consptr,  TRUE);
2549     }
2550 
2551     return s;
2552 }
2553 
2554 static int
2555 vt_proc_alive(scr_stat *scp)
2556 {
2557     struct proc *p;
2558 
2559     if (scp->proc) {
2560 	if ((p = pfind(scp->pid)) != NULL)
2561 	    PROC_UNLOCK(p);
2562 	if (scp->proc == p)
2563 	    return TRUE;
2564 	scp->proc = NULL;
2565 	scp->smode.mode = VT_AUTO;
2566 	DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
2567     }
2568     return FALSE;
2569 }
2570 
2571 static int
2572 signal_vt_rel(scr_stat *scp)
2573 {
2574     if (scp->smode.mode != VT_PROCESS)
2575 	return FALSE;
2576     scp->status |= SWITCH_WAIT_REL;
2577     PROC_LOCK(scp->proc);
2578     kern_psignal(scp->proc, scp->smode.relsig);
2579     PROC_UNLOCK(scp->proc);
2580     DPRINTF(5, ("sending relsig to %d\n", scp->pid));
2581     return TRUE;
2582 }
2583 
2584 static int
2585 signal_vt_acq(scr_stat *scp)
2586 {
2587     if (scp->smode.mode != VT_PROCESS)
2588 	return FALSE;
2589     if (scp->sc->unit == sc_console_unit)
2590 	cnavailable(sc_consptr,  FALSE);
2591     scp->status |= SWITCH_WAIT_ACQ;
2592     PROC_LOCK(scp->proc);
2593     kern_psignal(scp->proc, scp->smode.acqsig);
2594     PROC_UNLOCK(scp->proc);
2595     DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
2596     return TRUE;
2597 }
2598 
2599 static int
2600 finish_vt_rel(scr_stat *scp, int release, int *s)
2601 {
2602     if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
2603 	scp->status &= ~SWITCH_WAIT_REL;
2604 	if (release)
2605 	    *s = do_switch_scr(scp->sc, *s);
2606 	else
2607 	    scp->sc->switch_in_progress = 0;
2608 	return 0;
2609     }
2610     return EINVAL;
2611 }
2612 
2613 static int
2614 finish_vt_acq(scr_stat *scp)
2615 {
2616     if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
2617 	scp->status &= ~SWITCH_WAIT_ACQ;
2618 	scp->sc->switch_in_progress = 0;
2619 	return 0;
2620     }
2621     return EINVAL;
2622 }
2623 
2624 static void
2625 exchange_scr(sc_softc_t *sc)
2626 {
2627     scr_stat *scp;
2628 
2629     /* save the current state of video and keyboard */
2630     sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
2631     if (!ISGRAPHSC(sc->old_scp))
2632 	sc_remove_cursor_image(sc->old_scp);
2633     if (sc->old_scp->kbd_mode == K_XLATE)
2634 	save_kbd_state(sc->old_scp);
2635 
2636     /* set up the video for the new screen */
2637     scp = sc->cur_scp = sc->new_scp;
2638 #ifdef PC98
2639     if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp) || ISUNKNOWNSC(sc->new_scp))
2640 #else
2641     if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
2642 #endif
2643 	set_mode(scp);
2644 #ifndef __sparc64__
2645     else
2646 	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2647 		    (void *)sc->adp->va_window, FALSE);
2648 #endif
2649     scp->status |= MOUSE_HIDDEN;
2650     sc_move_cursor(scp, scp->xpos, scp->ypos);
2651     if (!ISGRAPHSC(scp))
2652 	sc_set_cursor_image(scp);
2653 #ifndef SC_NO_PALETTE_LOADING
2654     if (ISGRAPHSC(sc->old_scp)) {
2655 #ifdef SC_PIXEL_MODE
2656 	if (sc->adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
2657 	    vidd_load_palette(sc->adp, sc->palette2);
2658 	else
2659 #endif
2660 	vidd_load_palette(sc->adp, sc->palette);
2661     }
2662 #endif
2663     sc_set_border(scp, scp->border);
2664 
2665     /* set up the keyboard for the new screen */
2666     if (sc->old_scp->kbd_mode != scp->kbd_mode)
2667 	(void)kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
2668     update_kbd_state(scp, scp->status, LOCK_MASK);
2669 
2670     mark_all(scp);
2671 }
2672 
2673 static void
2674 sc_puts(scr_stat *scp, u_char *buf, int len, int kernel)
2675 {
2676     int need_unlock = 0;
2677 
2678 #ifdef DEV_SPLASH
2679     /* make screensaver happy */
2680     if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
2681 	run_scrn_saver = FALSE;
2682 #endif
2683 
2684     if (scp->tsw) {
2685 	if (!kdb_active && !mtx_owned(&scp->scr_lock)) {
2686 		need_unlock = 1;
2687 		mtx_lock_spin(&scp->scr_lock);
2688 	}
2689 	(*scp->tsw->te_puts)(scp, buf, len, kernel);
2690 	if (need_unlock)
2691 		mtx_unlock_spin(&scp->scr_lock);
2692     }
2693 
2694     if (scp->sc->delayed_next_scr)
2695 	sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
2696 }
2697 
2698 void
2699 sc_draw_cursor_image(scr_stat *scp)
2700 {
2701     /* assert(scp == scp->sc->cur_scp); */
2702     SC_VIDEO_LOCK(scp->sc);
2703     (*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
2704 			      scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
2705 			      sc_inside_cutmark(scp, scp->cursor_pos));
2706     scp->cursor_oldpos = scp->cursor_pos;
2707     SC_VIDEO_UNLOCK(scp->sc);
2708 }
2709 
2710 void
2711 sc_remove_cursor_image(scr_stat *scp)
2712 {
2713     /* assert(scp == scp->sc->cur_scp); */
2714     SC_VIDEO_LOCK(scp->sc);
2715     (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
2716 			      scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
2717 			      sc_inside_cutmark(scp, scp->cursor_oldpos));
2718     SC_VIDEO_UNLOCK(scp->sc);
2719 }
2720 
2721 static void
2722 update_cursor_image(scr_stat *scp)
2723 {
2724     /* assert(scp == scp->sc->cur_scp); */
2725     sc_remove_cursor_image(scp);
2726     sc_set_cursor_image(scp);
2727     sc_draw_cursor_image(scp);
2728 }
2729 
2730 void
2731 sc_set_cursor_image(scr_stat *scp)
2732 {
2733     scp->curs_attr.flags = scp->curr_curs_attr.flags;
2734     if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
2735 	/* hidden cursor is internally represented as zero-height underline */
2736 	scp->curs_attr.flags = CONS_CHAR_CURSOR;
2737 	scp->curs_attr.base = scp->curs_attr.height = 0;
2738     } else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
2739 	scp->curs_attr.base = imin(scp->curr_curs_attr.base,
2740 				  scp->font_size - 1);
2741 	scp->curs_attr.height = imin(scp->curr_curs_attr.height,
2742 				    scp->font_size - scp->curs_attr.base);
2743     } else {	/* block cursor */
2744 	scp->curs_attr.base = 0;
2745 	scp->curs_attr.height = scp->font_size;
2746     }
2747 
2748     /* assert(scp == scp->sc->cur_scp); */
2749     SC_VIDEO_LOCK(scp->sc);
2750     (*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
2751 			     scp->curs_attr.flags & CONS_BLINK_CURSOR);
2752     SC_VIDEO_UNLOCK(scp->sc);
2753 }
2754 
2755 static void
2756 change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2757 {
2758     if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
2759 	sc_remove_cursor_image(scp);
2760 
2761     if (base >= 0)
2762 	scp->curr_curs_attr.base = base;
2763     if (height >= 0)
2764 	scp->curr_curs_attr.height = height;
2765     if (flags & CONS_RESET_CURSOR)
2766 	scp->curr_curs_attr = scp->dflt_curs_attr;
2767     else
2768 	scp->curr_curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2769 
2770     if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
2771 	sc_set_cursor_image(scp);
2772 	sc_draw_cursor_image(scp);
2773     }
2774 }
2775 
2776 void
2777 sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2778 {
2779     sc_softc_t *sc;
2780     struct tty *tp;
2781     int s;
2782     int i;
2783 
2784     s = spltty();
2785     if ((flags != -1) && (flags & CONS_LOCAL_CURSOR)) {
2786 	/* local (per vty) change */
2787 	change_cursor_shape(scp, flags, base, height);
2788 	splx(s);
2789 	return;
2790     }
2791 
2792     /* global change */
2793     sc = scp->sc;
2794     if (base >= 0)
2795 	sc->curs_attr.base = base;
2796     if (height >= 0)
2797 	sc->curs_attr.height = height;
2798     if (flags != -1) {
2799 	if (flags & CONS_RESET_CURSOR)
2800 	    sc->curs_attr = sc->dflt_curs_attr;
2801 	else
2802 	    sc->curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2803     }
2804 
2805     for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
2806 	if ((tp = SC_DEV(sc, i)) == NULL)
2807 	    continue;
2808 	if ((scp = sc_get_stat(tp)) == NULL)
2809 	    continue;
2810 	scp->dflt_curs_attr = sc->curs_attr;
2811 	change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
2812     }
2813     splx(s);
2814 }
2815 
2816 static void
2817 scinit(int unit, int flags)
2818 {
2819 
2820     /*
2821      * When syscons is being initialized as the kernel console, malloc()
2822      * is not yet functional, because various kernel structures has not been
2823      * fully initialized yet.  Therefore, we need to declare the following
2824      * static buffers for the console.  This is less than ideal,
2825      * but is necessry evil for the time being.  XXX
2826      */
2827 #ifdef PC98
2828     static u_short sc_buffer[ROW*COL*2];/* XXX */
2829 #else
2830     static u_short sc_buffer[ROW*COL];	/* XXX */
2831 #endif
2832 #ifndef SC_NO_FONT_LOADING
2833     static u_char font_8[256*8];
2834     static u_char font_14[256*14];
2835     static u_char font_16[256*16];
2836 #endif
2837 
2838     sc_softc_t *sc;
2839     scr_stat *scp;
2840     video_adapter_t *adp;
2841     int col;
2842     int row;
2843     int i;
2844 
2845     /* one time initialization */
2846     if (init_done == COLD)
2847 	sc_get_bios_values(&bios_value);
2848     init_done = WARM;
2849 
2850     /*
2851      * Allocate resources.  Even if we are being called for the second
2852      * time, we must allocate them again, because they might have
2853      * disappeared...
2854      */
2855     sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2856     if ((sc->flags & SC_INIT_DONE) == 0)
2857 	SC_VIDEO_LOCKINIT(sc);
2858 
2859     adp = NULL;
2860     if (sc->adapter >= 0) {
2861 	vid_release(sc->adp, (void *)&sc->adapter);
2862 	adp = sc->adp;
2863 	sc->adp = NULL;
2864     }
2865     if (sc->keyboard >= 0) {
2866 	DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard));
2867 	i = kbd_release(sc->kbd, (void *)&sc->keyboard);
2868 	DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
2869 	if (sc->kbd != NULL) {
2870 	    DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
2871 		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2872 	}
2873 	sc->kbd = NULL;
2874     }
2875     sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
2876     sc->adp = vid_get_adapter(sc->adapter);
2877     /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
2878 
2879     sc->keyboard = sc_allocate_keyboard(sc, unit);
2880     DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard));
2881 
2882     sc->kbd = kbd_get_keyboard(sc->keyboard);
2883     if (sc->kbd != NULL) {
2884 	DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n",
2885 		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2886     }
2887 
2888     if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
2889 
2890 	sc->initial_mode = sc->adp->va_initial_mode;
2891 
2892 #ifndef SC_NO_FONT_LOADING
2893 	if (flags & SC_KERNEL_CONSOLE) {
2894 	    sc->font_8 = font_8;
2895 	    sc->font_14 = font_14;
2896 	    sc->font_16 = font_16;
2897 	} else if (sc->font_8 == NULL) {
2898 	    /* assert(sc_malloc) */
2899 	    sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
2900 	    sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
2901 	    sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
2902 	}
2903 #endif
2904 
2905 	/* extract the hardware cursor location and hide the cursor for now */
2906 	vidd_read_hw_cursor(sc->adp, &col, &row);
2907 	vidd_set_hw_cursor(sc->adp, -1, -1);
2908 
2909 	/* set up the first console */
2910 	sc->first_vty = unit*MAXCONS;
2911 	sc->vtys = MAXCONS;		/* XXX: should be configurable */
2912 	if (flags & SC_KERNEL_CONSOLE) {
2913 	    /*
2914 	     * Set up devs structure but don't use it yet, calling make_dev()
2915 	     * might panic kernel.  Wait for sc_attach_unit() to actually
2916 	     * create the devices.
2917 	     */
2918 	    sc->dev = main_devs;
2919 	    scp = &main_console;
2920 	    init_scp(sc, sc->first_vty, scp);
2921 	    sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize,
2922 			(void *)sc_buffer, FALSE);
2923 
2924 	    /* move cursors to the initial positions */
2925 	    if (col >= scp->xsize)
2926 		col = 0;
2927 	    if (row >= scp->ysize)
2928 		row = scp->ysize - 1;
2929 	    scp->xpos = col;
2930 	    scp->ypos = row;
2931 	    scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col;
2932 
2933 	    if (sc_init_emulator(scp, SC_DFLT_TERM))
2934 		sc_init_emulator(scp, "*");
2935 	    (*scp->tsw->te_default_attr)(scp,
2936 					 user_default.std_color,
2937 					 user_default.rev_color);
2938 	} else {
2939 	    /* assert(sc_malloc) */
2940 	    sc->dev = malloc(sizeof(struct tty *)*sc->vtys, M_DEVBUF,
2941 	        M_WAITOK|M_ZERO);
2942 	    sc->dev[0] = sc_alloc_tty(0, unit * MAXCONS);
2943 	    scp = alloc_scp(sc, sc->first_vty);
2944 	    SC_STAT(sc->dev[0]) = scp;
2945 	}
2946 	sc->cur_scp = scp;
2947 
2948 #ifndef __sparc64__
2949 	/* copy screen to temporary buffer */
2950 	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2951 		    (void *)scp->sc->adp->va_window, FALSE);
2952 	if (ISTEXTSC(scp))
2953 	    sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize);
2954 #endif
2955 
2956 	if (bios_value.cursor_end < scp->font_size)
2957 	    sc->dflt_curs_attr.base = scp->font_size -
2958 					  bios_value.cursor_end - 1;
2959 	else
2960 	    sc->dflt_curs_attr.base = 0;
2961 	i = bios_value.cursor_end - bios_value.cursor_start + 1;
2962 	sc->dflt_curs_attr.height = imin(i, scp->font_size);
2963 	sc->dflt_curs_attr.flags = 0;
2964 	sc->curs_attr = sc->dflt_curs_attr;
2965 	scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
2966 
2967 #ifndef SC_NO_SYSMOUSE
2968 	sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2);
2969 #endif
2970 	if (!ISGRAPHSC(scp)) {
2971     	    sc_set_cursor_image(scp);
2972     	    sc_draw_cursor_image(scp);
2973 	}
2974 
2975 	/* save font and palette */
2976 #ifndef SC_NO_FONT_LOADING
2977 	sc->fonts_loaded = 0;
2978 	if (ISFONTAVAIL(sc->adp->va_flags)) {
2979 #ifdef SC_DFLT_FONT
2980 	    bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
2981 	    bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
2982 	    bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
2983 	    sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
2984 	    if (scp->font_size < 14) {
2985 		sc_load_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2986 	    } else if (scp->font_size >= 16) {
2987 		sc_load_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2988 	    } else {
2989 		sc_load_font(scp, 0, 14, 8, sc->font_14, 0, 256);
2990 	    }
2991 #else /* !SC_DFLT_FONT */
2992 	    if (scp->font_size < 14) {
2993 		sc_save_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2994 		sc->fonts_loaded = FONT_8;
2995 	    } else if (scp->font_size >= 16) {
2996 		sc_save_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2997 		sc->fonts_loaded = FONT_16;
2998 	    } else {
2999 		sc_save_font(scp, 0, 14, 8, sc->font_14, 0, 256);
3000 		sc->fonts_loaded = FONT_14;
3001 	    }
3002 #endif /* SC_DFLT_FONT */
3003 	    /* FONT KLUDGE: always use the font page #0. XXX */
3004 	    sc_show_font(scp, 0);
3005 	}
3006 #endif /* !SC_NO_FONT_LOADING */
3007 
3008 #ifndef SC_NO_PALETTE_LOADING
3009 	vidd_save_palette(sc->adp, sc->palette);
3010 #ifdef SC_PIXEL_MODE
3011 	for (i = 0; i < sizeof(sc->palette2); i++)
3012 		sc->palette2[i] = i / 3;
3013 #endif
3014 #endif
3015 
3016 #ifdef DEV_SPLASH
3017 	if (!(sc->flags & SC_SPLASH_SCRN)) {
3018 	    /* we are ready to put up the splash image! */
3019 	    splash_init(sc->adp, scsplash_callback, sc);
3020 	    sc->flags |= SC_SPLASH_SCRN;
3021 	}
3022 #endif
3023     }
3024 
3025     /* the rest is not necessary, if we have done it once */
3026     if (sc->flags & SC_INIT_DONE)
3027 	return;
3028 
3029     /* initialize mapscrn arrays to a one to one map */
3030     for (i = 0; i < sizeof(sc->scr_map); i++)
3031 	sc->scr_map[i] = sc->scr_rmap[i] = i;
3032 #ifdef PC98
3033     sc->scr_map[0x5c] = (u_char)0xfc;	/* for backslash */
3034 #endif
3035 
3036     sc->flags |= SC_INIT_DONE;
3037 }
3038 
3039 static void
3040 scterm(int unit, int flags)
3041 {
3042     sc_softc_t *sc;
3043     scr_stat *scp;
3044 
3045     sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
3046     if (sc == NULL)
3047 	return;			/* shouldn't happen */
3048 
3049 #ifdef DEV_SPLASH
3050     /* this console is no longer available for the splash screen */
3051     if (sc->flags & SC_SPLASH_SCRN) {
3052 	splash_term(sc->adp);
3053 	sc->flags &= ~SC_SPLASH_SCRN;
3054     }
3055 #endif
3056 
3057 #if 0 /* XXX */
3058     /* move the hardware cursor to the upper-left corner */
3059     vidd_set_hw_cursor(sc->adp, 0, 0);
3060 #endif
3061 
3062     /* release the keyboard and the video card */
3063     if (sc->keyboard >= 0)
3064 	kbd_release(sc->kbd, &sc->keyboard);
3065     if (sc->adapter >= 0)
3066 	vid_release(sc->adp, &sc->adapter);
3067 
3068     /* stop the terminal emulator, if any */
3069     scp = sc_get_stat(sc->dev[0]);
3070     if (scp->tsw)
3071 	(*scp->tsw->te_term)(scp, &scp->ts);
3072     if (scp->ts != NULL)
3073 	free(scp->ts, M_DEVBUF);
3074     mtx_destroy(&scp->scr_lock);
3075 
3076     /* clear the structure */
3077     if (!(flags & SC_KERNEL_CONSOLE)) {
3078 	/* XXX: We need delete_dev() for this */
3079 	free(sc->dev, M_DEVBUF);
3080 #if 0
3081 	/* XXX: We need a ttyunregister for this */
3082 	free(sc->tty, M_DEVBUF);
3083 #endif
3084 #ifndef SC_NO_FONT_LOADING
3085 	free(sc->font_8, M_DEVBUF);
3086 	free(sc->font_14, M_DEVBUF);
3087 	free(sc->font_16, M_DEVBUF);
3088 #endif
3089 	/* XXX vtb, history */
3090     }
3091     bzero(sc, sizeof(*sc));
3092     sc->keyboard = -1;
3093     sc->adapter = -1;
3094 }
3095 
3096 static void
3097 scshutdown(__unused void *arg, __unused int howto)
3098 {
3099 
3100 	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3101 	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3102 	KASSERT(sc_console->sc->cur_scp != NULL,
3103 	    ("sc_console->sc->cur_scp != NULL"));
3104 
3105 	sc_touch_scrn_saver();
3106 	if (!cold &&
3107 	    sc_console->sc->cur_scp->index != sc_console->index &&
3108 	    sc_console->sc->cur_scp->smode.mode == VT_AUTO &&
3109 	    sc_console->smode.mode == VT_AUTO)
3110 		sc_switch_scr(sc_console->sc, sc_console->index);
3111 	shutdown_in_progress = TRUE;
3112 }
3113 
3114 static void
3115 scsuspend(__unused void *arg)
3116 {
3117 	int retry;
3118 
3119 	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3120 	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3121 	KASSERT(sc_console->sc->cur_scp != NULL,
3122 	    ("sc_console->sc->cur_scp != NULL"));
3123 
3124 	sc_susp_scr = sc_console->sc->cur_scp->index;
3125 	if (sc_no_suspend_vtswitch ||
3126 	    sc_susp_scr == sc_console->index) {
3127 		sc_touch_scrn_saver();
3128 		sc_susp_scr = -1;
3129 		return;
3130 	}
3131 	for (retry = 0; retry < 10; retry++) {
3132 		sc_switch_scr(sc_console->sc, sc_console->index);
3133 		if (!sc_console->sc->switch_in_progress)
3134 			break;
3135 		pause("scsuspend", hz);
3136 	}
3137 	suspend_in_progress = TRUE;
3138 }
3139 
3140 static void
3141 scresume(__unused void *arg)
3142 {
3143 
3144 	KASSERT(sc_console != NULL, ("sc_console != NULL"));
3145 	KASSERT(sc_console->sc != NULL, ("sc_console->sc != NULL"));
3146 	KASSERT(sc_console->sc->cur_scp != NULL,
3147 	    ("sc_console->sc->cur_scp != NULL"));
3148 
3149 	suspend_in_progress = FALSE;
3150 	if (sc_susp_scr < 0) {
3151 		update_font(sc_console->sc->cur_scp);
3152 		return;
3153 	}
3154 	sc_switch_scr(sc_console->sc, sc_susp_scr);
3155 }
3156 
3157 int
3158 sc_clean_up(scr_stat *scp)
3159 {
3160 #ifdef DEV_SPLASH
3161     int error;
3162 #endif
3163 
3164     if (scp->sc->flags & SC_SCRN_BLANKED) {
3165 	sc_touch_scrn_saver();
3166 #ifdef DEV_SPLASH
3167 	if ((error = wait_scrn_saver_stop(scp->sc)))
3168 	    return error;
3169 #endif
3170     }
3171     scp->status |= MOUSE_HIDDEN;
3172     sc_remove_mouse_image(scp);
3173     sc_remove_cutmarking(scp);
3174     return 0;
3175 }
3176 
3177 void
3178 sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
3179 {
3180     sc_vtb_t new;
3181     sc_vtb_t old;
3182 
3183     old = scp->vtb;
3184     sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
3185     if (!discard && (old.vtb_flags & VTB_VALID)) {
3186 	/* retain the current cursor position and buffer contants */
3187 	scp->cursor_oldpos = scp->cursor_pos;
3188 	/*
3189 	 * This works only if the old buffer has the same size as or larger
3190 	 * than the new one. XXX
3191 	 */
3192 	sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize);
3193 	scp->vtb = new;
3194     } else {
3195 	scp->vtb = new;
3196 	sc_vtb_destroy(&old);
3197     }
3198 
3199 #ifndef SC_NO_SYSMOUSE
3200     /* move the mouse cursor at the center of the screen */
3201     sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
3202 #endif
3203 }
3204 
3205 static scr_stat
3206 *alloc_scp(sc_softc_t *sc, int vty)
3207 {
3208     scr_stat *scp;
3209 
3210     /* assert(sc_malloc) */
3211 
3212     scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
3213     init_scp(sc, vty, scp);
3214 
3215     sc_alloc_scr_buffer(scp, TRUE, TRUE);
3216     if (sc_init_emulator(scp, SC_DFLT_TERM))
3217 	sc_init_emulator(scp, "*");
3218 
3219 #ifndef SC_NO_CUTPASTE
3220     sc_alloc_cut_buffer(scp, TRUE);
3221 #endif
3222 
3223 #ifndef SC_NO_HISTORY
3224     sc_alloc_history_buffer(scp, 0, 0, TRUE);
3225 #endif
3226 
3227     return scp;
3228 }
3229 
3230 static void
3231 init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
3232 {
3233     video_info_t info;
3234 
3235     bzero(scp, sizeof(*scp));
3236 
3237     scp->index = vty;
3238     scp->sc = sc;
3239     scp->status = 0;
3240     scp->mode = sc->initial_mode;
3241     vidd_get_info(sc->adp, scp->mode, &info);
3242     if (info.vi_flags & V_INFO_GRAPHICS) {
3243 	scp->status |= GRAPHICS_MODE;
3244 	scp->xpixel = info.vi_width;
3245 	scp->ypixel = info.vi_height;
3246 	scp->xsize = info.vi_width/info.vi_cwidth;
3247 	scp->ysize = info.vi_height/info.vi_cheight;
3248 	scp->font_size = 0;
3249 	scp->font = NULL;
3250     } else {
3251 	scp->xsize = info.vi_width;
3252 	scp->ysize = info.vi_height;
3253 	scp->xpixel = scp->xsize*info.vi_cwidth;
3254 	scp->ypixel = scp->ysize*info.vi_cheight;
3255     }
3256 
3257     scp->font_size = info.vi_cheight;
3258     scp->font_width = info.vi_cwidth;
3259 #ifndef SC_NO_FONT_LOADING
3260     if (info.vi_cheight < 14)
3261 	scp->font = sc->font_8;
3262     else if (info.vi_cheight >= 16)
3263 	scp->font = sc->font_16;
3264     else
3265 	scp->font = sc->font_14;
3266 #else
3267     scp->font = NULL;
3268 #endif
3269 
3270     sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
3271 #ifndef __sparc64__
3272     sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
3273 #endif
3274     scp->xoff = scp->yoff = 0;
3275     scp->xpos = scp->ypos = 0;
3276     scp->start = scp->xsize * scp->ysize - 1;
3277     scp->end = 0;
3278     scp->tsw = NULL;
3279     scp->ts = NULL;
3280     scp->rndr = NULL;
3281     scp->border = (SC_NORM_ATTR >> 4) & 0x0f;
3282     scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3283     scp->mouse_cut_start = scp->xsize*scp->ysize;
3284     scp->mouse_cut_end = -1;
3285     scp->mouse_signal = 0;
3286     scp->mouse_pid = 0;
3287     scp->mouse_proc = NULL;
3288     scp->kbd_mode = K_XLATE;
3289     scp->bell_pitch = bios_value.bell_pitch;
3290     scp->bell_duration = BELL_DURATION;
3291     scp->status |= (bios_value.shift_state & NLKED);
3292     scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
3293     scp->pid = 0;
3294     scp->proc = NULL;
3295     scp->smode.mode = VT_AUTO;
3296     scp->history = NULL;
3297     scp->history_pos = 0;
3298     scp->history_size = 0;
3299 
3300     mtx_init(&scp->scr_lock, "scrlock", NULL, MTX_SPIN);
3301 }
3302 
3303 int
3304 sc_init_emulator(scr_stat *scp, char *name)
3305 {
3306     sc_term_sw_t *sw;
3307     sc_rndr_sw_t *rndr;
3308     void *p;
3309     int error;
3310 
3311     if (name == NULL)	/* if no name is given, use the current emulator */
3312 	sw = scp->tsw;
3313     else		/* ...otherwise find the named emulator */
3314 	sw = sc_term_match(name);
3315     if (sw == NULL)
3316 	return EINVAL;
3317 
3318     rndr = NULL;
3319     if (strcmp(sw->te_renderer, "*") != 0) {
3320 	rndr = sc_render_match(scp, sw->te_renderer,
3321 			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3322     }
3323     if (rndr == NULL) {
3324 	rndr = sc_render_match(scp, scp->sc->adp->va_name,
3325 			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3326 	if (rndr == NULL)
3327 	    return ENODEV;
3328     }
3329 
3330     if (sw == scp->tsw) {
3331 	error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
3332 	scp->rndr = rndr;
3333 	scp->rndr->init(scp);
3334 	sc_clear_screen(scp);
3335 	/* assert(error == 0); */
3336 	return error;
3337     }
3338 
3339     if (sc_malloc && (sw->te_size > 0))
3340 	p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
3341     else
3342 	p = NULL;
3343     error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
3344     if (error)
3345 	return error;
3346 
3347     if (scp->tsw)
3348 	(*scp->tsw->te_term)(scp, &scp->ts);
3349     if (scp->ts != NULL)
3350 	free(scp->ts, M_DEVBUF);
3351     scp->tsw = sw;
3352     scp->ts = p;
3353     scp->rndr = rndr;
3354     scp->rndr->init(scp);
3355 
3356     /* XXX */
3357     (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color);
3358     sc_clear_screen(scp);
3359 
3360     return 0;
3361 }
3362 
3363 /*
3364  * scgetc(flags) - get character from keyboard.
3365  * If flags & SCGETC_CN, then avoid harmful side effects.
3366  * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
3367  * return NOKEY if there is nothing there.
3368  */
3369 static u_int
3370 scgetc(sc_softc_t *sc, u_int flags)
3371 {
3372     scr_stat *scp;
3373 #ifndef SC_NO_HISTORY
3374     struct tty *tp;
3375 #endif
3376     u_int c;
3377     int this_scr;
3378     int f;
3379     int i;
3380 
3381     if (sc->kbd == NULL)
3382 	return NOKEY;
3383 
3384 next_code:
3385 #if 1
3386     /* I don't like this, but... XXX */
3387     if (flags & SCGETC_CN)
3388 	sccnupdate(sc->cur_scp);
3389 #endif
3390     scp = sc->cur_scp;
3391     /* first see if there is something in the keyboard port */
3392     for (;;) {
3393 	c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
3394 	if (c == ERRKEY) {
3395 	    if (!(flags & SCGETC_CN))
3396 		sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3397 	} else if (c == NOKEY)
3398 	    return c;
3399 	else
3400 	    break;
3401     }
3402 
3403     /* make screensaver happy */
3404     if (!(c & RELKEY))
3405 	sc_touch_scrn_saver();
3406 
3407     if (!(flags & SCGETC_CN))
3408 	random_harvest(&c, sizeof(c), 1, RANDOM_KEYBOARD);
3409 
3410     if (scp->kbd_mode != K_XLATE)
3411 	return KEYCHAR(c);
3412 
3413     /* if scroll-lock pressed allow history browsing */
3414     if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
3415 
3416 	scp->status &= ~CURSOR_ENABLED;
3417 	sc_remove_cursor_image(scp);
3418 
3419 #ifndef SC_NO_HISTORY
3420 	if (!(scp->status & BUFFER_SAVED)) {
3421 	    scp->status |= BUFFER_SAVED;
3422 	    sc_hist_save(scp);
3423 	}
3424 	switch (c) {
3425 	/* FIXME: key codes */
3426 	case SPCLKEY | FKEY | F(49):  /* home key */
3427 	    sc_remove_cutmarking(scp);
3428 	    sc_hist_home(scp);
3429 	    goto next_code;
3430 
3431 	case SPCLKEY | FKEY | F(57):  /* end key */
3432 	    sc_remove_cutmarking(scp);
3433 	    sc_hist_end(scp);
3434 	    goto next_code;
3435 
3436 	case SPCLKEY | FKEY | F(50):  /* up arrow key */
3437 	    sc_remove_cutmarking(scp);
3438 	    if (sc_hist_up_line(scp))
3439 		if (!(flags & SCGETC_CN))
3440 		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3441 	    goto next_code;
3442 
3443 	case SPCLKEY | FKEY | F(58):  /* down arrow key */
3444 	    sc_remove_cutmarking(scp);
3445 	    if (sc_hist_down_line(scp))
3446 		if (!(flags & SCGETC_CN))
3447 		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3448 	    goto next_code;
3449 
3450 	case SPCLKEY | FKEY | F(51):  /* page up key */
3451 	    sc_remove_cutmarking(scp);
3452 	    for (i=0; i<scp->ysize; i++)
3453 	    if (sc_hist_up_line(scp)) {
3454 		if (!(flags & SCGETC_CN))
3455 		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3456 		break;
3457 	    }
3458 	    goto next_code;
3459 
3460 	case SPCLKEY | FKEY | F(59):  /* page down key */
3461 	    sc_remove_cutmarking(scp);
3462 	    for (i=0; i<scp->ysize; i++)
3463 	    if (sc_hist_down_line(scp)) {
3464 		if (!(flags & SCGETC_CN))
3465 		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3466 		break;
3467 	    }
3468 	    goto next_code;
3469 	}
3470 #endif /* SC_NO_HISTORY */
3471     }
3472 
3473     /*
3474      * Process and consume special keys here.  Return a plain char code
3475      * or a char code with the META flag or a function key code.
3476      */
3477     if (c & RELKEY) {
3478 	/* key released */
3479 	/* goto next_code */
3480     } else {
3481 	/* key pressed */
3482 	if (c & SPCLKEY) {
3483 	    c &= ~SPCLKEY;
3484 	    switch (KEYCHAR(c)) {
3485 	    /* LOCKING KEYS */
3486 	    case NLK: case CLK: case ALK:
3487 		break;
3488 	    case SLK:
3489 		(void)kbdd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f);
3490 		if (f & SLKED) {
3491 		    scp->status |= SLKED;
3492 		} else {
3493 		    if (scp->status & SLKED) {
3494 			scp->status &= ~SLKED;
3495 #ifndef SC_NO_HISTORY
3496 			if (scp->status & BUFFER_SAVED) {
3497 			    if (!sc_hist_restore(scp))
3498 				sc_remove_cutmarking(scp);
3499 			    scp->status &= ~BUFFER_SAVED;
3500 			    scp->status |= CURSOR_ENABLED;
3501 			    sc_draw_cursor_image(scp);
3502 			}
3503 			tp = SC_DEV(sc, scp->index);
3504 			if (!kdb_active && tty_opened_ns(tp))
3505 			    sctty_outwakeup(tp);
3506 #endif
3507 		    }
3508 		}
3509 		break;
3510 
3511 	    case PASTE:
3512 #ifndef SC_NO_CUTPASTE
3513 		sc_mouse_paste(scp);
3514 #endif
3515 		break;
3516 
3517 	    /* NON-LOCKING KEYS */
3518 	    case NOP:
3519 	    case LSH:  case RSH:  case LCTR: case RCTR:
3520 	    case LALT: case RALT: case ASH:  case META:
3521 		break;
3522 
3523 	    case BTAB:
3524 		if (!(sc->flags & SC_SCRN_BLANKED))
3525 		    return c;
3526 		break;
3527 
3528 	    case SPSC:
3529 #ifdef DEV_SPLASH
3530 		/* force activatation/deactivation of the screen saver */
3531 		if (!(sc->flags & SC_SCRN_BLANKED)) {
3532 		    run_scrn_saver = TRUE;
3533 		    sc->scrn_time_stamp -= scrn_blank_time;
3534 		}
3535 		if (cold) {
3536 		    /*
3537 		     * While devices are being probed, the screen saver need
3538 		     * to be invoked explictly. XXX
3539 		     */
3540 		    if (sc->flags & SC_SCRN_BLANKED) {
3541 			scsplash_stick(FALSE);
3542 			stop_scrn_saver(sc, current_saver);
3543 		    } else {
3544 			if (!ISGRAPHSC(scp)) {
3545 			    scsplash_stick(TRUE);
3546 			    (*current_saver)(sc, TRUE);
3547 			}
3548 		    }
3549 		}
3550 #endif /* DEV_SPLASH */
3551 		break;
3552 
3553 	    case RBT:
3554 #ifndef SC_DISABLE_REBOOT
3555 		if (enable_reboot)
3556 			shutdown_nice(0);
3557 #endif
3558 		break;
3559 
3560 	    case HALT:
3561 #ifndef SC_DISABLE_REBOOT
3562 		if (enable_reboot)
3563 			shutdown_nice(RB_HALT);
3564 #endif
3565 		break;
3566 
3567 	    case PDWN:
3568 #ifndef SC_DISABLE_REBOOT
3569 		if (enable_reboot)
3570 			shutdown_nice(RB_HALT|RB_POWEROFF);
3571 #endif
3572 		break;
3573 
3574 	    case SUSP:
3575 		power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
3576 		break;
3577 	    case STBY:
3578 		power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
3579 		break;
3580 
3581 	    case DBG:
3582 #ifndef SC_DISABLE_KDBKEY
3583 		if (enable_kdbkey)
3584 			kdb_break();
3585 #endif
3586 		break;
3587 
3588 	    case PNC:
3589 		if (enable_panic_key)
3590 			panic("Forced by the panic key");
3591 		break;
3592 
3593 	    case NEXT:
3594 		this_scr = scp->index;
3595 		for (i = (this_scr - sc->first_vty + 1)%sc->vtys;
3596 			sc->first_vty + i != this_scr;
3597 			i = (i + 1)%sc->vtys) {
3598 		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3599 		    if (tty_opened_ns(tp)) {
3600 			sc_switch_scr(scp->sc, sc->first_vty + i);
3601 			break;
3602 		    }
3603 		}
3604 		break;
3605 
3606 	    case PREV:
3607 		this_scr = scp->index;
3608 		for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys;
3609 			sc->first_vty + i != this_scr;
3610 			i = (i + sc->vtys - 1)%sc->vtys) {
3611 		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3612 		    if (tty_opened_ns(tp)) {
3613 			sc_switch_scr(scp->sc, sc->first_vty + i);
3614 			break;
3615 		    }
3616 		}
3617 		break;
3618 
3619 	    default:
3620 		if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) {
3621 		    sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR);
3622 		    break;
3623 		}
3624 		/* assert(c & FKEY) */
3625 		if (!(sc->flags & SC_SCRN_BLANKED))
3626 		    return c;
3627 		break;
3628 	    }
3629 	    /* goto next_code */
3630 	} else {
3631 	    /* regular keys (maybe MKEY is set) */
3632 #if !defined(SC_DISABLE_KDBKEY) && defined(KDB)
3633 	    if (enable_kdbkey)
3634 		kdb_alt_break(c, &sc->sc_altbrk);
3635 #endif
3636 	    if (!(sc->flags & SC_SCRN_BLANKED))
3637 		return c;
3638 	}
3639     }
3640 
3641     goto next_code;
3642 }
3643 
3644 static int
3645 sctty_mmap(struct tty *tp, vm_ooffset_t offset, vm_paddr_t *paddr,
3646     int nprot, vm_memattr_t *memattr)
3647 {
3648     scr_stat *scp;
3649 
3650     scp = sc_get_stat(tp);
3651     if (scp != scp->sc->cur_scp)
3652 	return -1;
3653     return vidd_mmap(scp->sc->adp, offset, paddr, nprot, memattr);
3654 }
3655 
3656 static void
3657 update_font(scr_stat *scp)
3658 {
3659 #ifndef SC_NO_FONT_LOADING
3660     /* load appropriate font */
3661     if (!(scp->status & GRAPHICS_MODE)) {
3662 	if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) {
3663 	    if (scp->font_size < 14) {
3664 		if (scp->sc->fonts_loaded & FONT_8)
3665 		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
3666 	    } else if (scp->font_size >= 16) {
3667 		if (scp->sc->fonts_loaded & FONT_16)
3668 		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
3669 	    } else {
3670 		if (scp->sc->fonts_loaded & FONT_14)
3671 		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
3672 	    }
3673 	    /*
3674 	     * FONT KLUDGE:
3675 	     * This is an interim kludge to display correct font.
3676 	     * Always use the font page #0 on the video plane 2.
3677 	     * Somehow we cannot show the font in other font pages on
3678 	     * some video cards... XXX
3679 	     */
3680 	    sc_show_font(scp, 0);
3681 	}
3682 	mark_all(scp);
3683     }
3684 #endif /* !SC_NO_FONT_LOADING */
3685 }
3686 
3687 static int
3688 save_kbd_state(scr_stat *scp)
3689 {
3690     int state;
3691     int error;
3692 
3693     error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3694     if (error == ENOIOCTL)
3695 	error = ENODEV;
3696     if (error == 0) {
3697 	scp->status &= ~LOCK_MASK;
3698 	scp->status |= state;
3699     }
3700     return error;
3701 }
3702 
3703 static int
3704 update_kbd_state(scr_stat *scp, int new_bits, int mask)
3705 {
3706     int state;
3707     int error;
3708 
3709     if (mask != LOCK_MASK) {
3710 	error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3711 	if (error == ENOIOCTL)
3712 	    error = ENODEV;
3713 	if (error)
3714 	    return error;
3715 	state &= ~mask;
3716 	state |= new_bits & mask;
3717     } else {
3718 	state = new_bits & LOCK_MASK;
3719     }
3720     error = kbdd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
3721     if (error == ENOIOCTL)
3722 	error = ENODEV;
3723     return error;
3724 }
3725 
3726 static int
3727 update_kbd_leds(scr_stat *scp, int which)
3728 {
3729     int error;
3730 
3731     which &= LOCK_MASK;
3732     error = kbdd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
3733     if (error == ENOIOCTL)
3734 	error = ENODEV;
3735     return error;
3736 }
3737 
3738 int
3739 set_mode(scr_stat *scp)
3740 {
3741     video_info_t info;
3742 
3743     /* reject unsupported mode */
3744     if (vidd_get_info(scp->sc->adp, scp->mode, &info))
3745 	return 1;
3746 
3747     /* if this vty is not currently showing, do nothing */
3748     if (scp != scp->sc->cur_scp)
3749 	return 0;
3750 
3751     /* setup video hardware for the given mode */
3752     vidd_set_mode(scp->sc->adp, scp->mode);
3753     scp->rndr->init(scp);
3754 #ifndef __sparc64__
3755     sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3756 		(void *)scp->sc->adp->va_window, FALSE);
3757 #endif
3758 
3759     update_font(scp);
3760 
3761     sc_set_border(scp, scp->border);
3762     sc_set_cursor_image(scp);
3763 
3764     return 0;
3765 }
3766 
3767 void
3768 sc_set_border(scr_stat *scp, int color)
3769 {
3770     SC_VIDEO_LOCK(scp->sc);
3771     (*scp->rndr->draw_border)(scp, color);
3772     SC_VIDEO_UNLOCK(scp->sc);
3773 }
3774 
3775 #ifndef SC_NO_FONT_LOADING
3776 void
3777 sc_load_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3778 	     int base, int count)
3779 {
3780     sc_softc_t *sc;
3781 
3782     sc = scp->sc;
3783     sc->font_loading_in_progress = TRUE;
3784     vidd_load_font(sc->adp, page, size, width, buf, base, count);
3785     sc->font_loading_in_progress = FALSE;
3786 }
3787 
3788 void
3789 sc_save_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3790 	     int base, int count)
3791 {
3792     sc_softc_t *sc;
3793 
3794     sc = scp->sc;
3795     sc->font_loading_in_progress = TRUE;
3796     vidd_save_font(sc->adp, page, size, width, buf, base, count);
3797     sc->font_loading_in_progress = FALSE;
3798 }
3799 
3800 void
3801 sc_show_font(scr_stat *scp, int page)
3802 {
3803     vidd_show_font(scp->sc->adp, page);
3804 }
3805 #endif /* !SC_NO_FONT_LOADING */
3806 
3807 void
3808 sc_paste(scr_stat *scp, const u_char *p, int count)
3809 {
3810     struct tty *tp;
3811     u_char *rmap;
3812 
3813     tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3814     if (!tty_opened_ns(tp))
3815 	return;
3816     rmap = scp->sc->scr_rmap;
3817     for (; count > 0; --count)
3818 	ttydisc_rint(tp, rmap[*p++], 0);
3819     ttydisc_rint_done(tp);
3820 }
3821 
3822 void
3823 sc_respond(scr_stat *scp, const u_char *p, int count, int wakeup)
3824 {
3825     struct tty *tp;
3826 
3827     tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3828     if (!tty_opened_ns(tp))
3829 	return;
3830     ttydisc_rint_simple(tp, p, count);
3831     if (wakeup) {
3832 	/* XXX: we can't always call ttydisc_rint_done() here! */
3833 	ttydisc_rint_done(tp);
3834     }
3835 }
3836 
3837 void
3838 sc_bell(scr_stat *scp, int pitch, int duration)
3839 {
3840     if (cold || shutdown_in_progress || !enable_bell)
3841 	return;
3842 
3843     if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
3844 	return;
3845 
3846     if (scp->sc->flags & SC_VISUAL_BELL) {
3847 	if (scp->sc->blink_in_progress)
3848 	    return;
3849 	scp->sc->blink_in_progress = 3;
3850 	if (scp != scp->sc->cur_scp)
3851 	    scp->sc->blink_in_progress += 2;
3852 	blink_screen(scp->sc->cur_scp);
3853     } else if (duration != 0 && pitch != 0) {
3854 	if (scp != scp->sc->cur_scp)
3855 	    pitch *= 2;
3856 	sysbeep(1193182 / pitch, duration);
3857     }
3858 }
3859 
3860 static void
3861 blink_screen(void *arg)
3862 {
3863     scr_stat *scp = arg;
3864     struct tty *tp;
3865 
3866     if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
3867 	scp->sc->blink_in_progress = 0;
3868     	mark_all(scp);
3869 	tp = SC_DEV(scp->sc, scp->index);
3870 	if (tty_opened_ns(tp))
3871 	    sctty_outwakeup(tp);
3872 	if (scp->sc->delayed_next_scr)
3873 	    sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
3874     }
3875     else {
3876 	(*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize,
3877 			   scp->sc->blink_in_progress & 1);
3878 	scp->sc->blink_in_progress--;
3879 	callout_reset_sbt(&scp->sc->cblink, SBT_1S / 15, 0,
3880 	    blink_screen, scp, C_PREL(0));
3881     }
3882 }
3883 
3884 /*
3885  * Until sc_attach_unit() gets called no dev structures will be available
3886  * to store the per-screen current status.  This is the case when the
3887  * kernel is initially booting and needs access to its console.  During
3888  * this early phase of booting the console's current status is kept in
3889  * one statically defined scr_stat structure, and any pointers to the
3890  * dev structures will be NULL.
3891  */
3892 
3893 static scr_stat *
3894 sc_get_stat(struct tty *tp)
3895 {
3896 	if (tp == NULL)
3897 		return (&main_console);
3898 	return (SC_STAT(tp));
3899 }
3900 
3901 /*
3902  * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and,
3903  * if found, add all non-busy keyboards to "kbdmux". Otherwise look for
3904  * any keyboard.
3905  */
3906 
3907 static int
3908 sc_allocate_keyboard(sc_softc_t *sc, int unit)
3909 {
3910 	int		 idx0, idx;
3911 	keyboard_t	*k0, *k;
3912 	keyboard_info_t	 ki;
3913 
3914 	idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc);
3915 	if (idx0 != -1) {
3916 		k0 = kbd_get_keyboard(idx0);
3917 
3918 		for (idx = kbd_find_keyboard2("*", -1, 0);
3919 		     idx != -1;
3920 		     idx = kbd_find_keyboard2("*", -1, idx + 1)) {
3921 			k = kbd_get_keyboard(idx);
3922 
3923 			if (idx == idx0 || KBD_IS_BUSY(k))
3924 				continue;
3925 
3926 			bzero(&ki, sizeof(ki));
3927 			strcpy(ki.kb_name, k->kb_name);
3928 			ki.kb_unit = k->kb_unit;
3929 
3930 			(void)kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
3931 		}
3932 	} else
3933 		idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc);
3934 
3935 	return (idx0);
3936 }
3937