syscons.c revision 201223
1/*-
2 * Copyright (c) 1992-1998 S�ren Schmidt
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The DragonFly Project
6 * by Sascha Wildner <saw@online.de>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer,
13 *    without modification, immediately at the beginning of the file.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/dev/syscons/syscons.c 201223 2009-12-29 21:51:28Z rnoland $");
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(__sparc64__) || defined(__powerpc__)
66#include <machine/sc_machdep.h>
67#else
68#include <machine/pc/display.h>
69#endif
70#if defined( __i386__) || defined(__amd64__)
71#include <machine/psl.h>
72#include <machine/frame.h>
73#endif
74#include <machine/stdarg.h>
75
76#include <dev/kbd/kbdreg.h>
77#include <dev/fb/fbreg.h>
78#include <dev/fb/splashreg.h>
79#include <dev/syscons/syscons.h>
80
81#define COLD 0
82#define WARM 1
83
84#define DEFAULT_BLANKTIME	(5*60)		/* 5 minutes */
85#define MAX_BLANKTIME		(7*24*60*60)	/* 7 days!? */
86
87#define KEYCODE_BS		0x0e		/* "<-- Backspace" key, XXX */
88
89typedef struct default_attr {
90	int		std_color;		/* normal hardware color */
91	int		rev_color;		/* reverse hardware color */
92} default_attr;
93
94static default_attr user_default = {
95    SC_NORM_ATTR,
96    SC_NORM_REV_ATTR,
97};
98
99static	int		sc_console_unit = -1;
100static	int		sc_saver_keyb_only = 1;
101static  scr_stat    	*sc_console;
102static  struct consdev	*sc_consptr;
103static	scr_stat	main_console;
104static	struct tty 	*main_devs[MAXCONS];
105
106static  char        	init_done = COLD;
107static  char		shutdown_in_progress = FALSE;
108static	char		sc_malloc = FALSE;
109
110static	int		saver_mode = CONS_NO_SAVER; /* LKM/user saver */
111static	int		run_scrn_saver = FALSE;	/* should run the saver? */
112static	int		enable_bell = TRUE; /* enable beeper */
113
114#ifndef SC_DISABLE_REBOOT
115static  int		enable_reboot = TRUE; /* enable keyboard reboot */
116#endif
117
118#ifndef SC_DISABLE_KDBKEY
119static  int		enable_kdbkey = TRUE; /* enable keyboard debug */
120#endif
121
122static	long        	scrn_blank_time = 0;    /* screen saver timeout value */
123#ifdef DEV_SPLASH
124static	int     	scrn_blanked;		/* # of blanked screen */
125static	int		sticky_splash = FALSE;
126
127static	void		none_saver(sc_softc_t *sc, int blank) { }
128static	void		(*current_saver)(sc_softc_t *, int) = none_saver;
129#endif
130
131SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD, 0, "syscons");
132SYSCTL_NODE(_hw_syscons, OID_AUTO, saver, CTLFLAG_RD, 0, "saver");
133SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
134    &sc_saver_keyb_only, 0, "screen saver interrupted by input only");
135SYSCTL_INT(_hw_syscons, OID_AUTO, bell, CTLFLAG_RW, &enable_bell,
136    0, "enable bell");
137#ifndef SC_DISABLE_REBOOT
138SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_reboot, CTLFLAG_RW|CTLFLAG_SECURE, &enable_reboot,
139    0, "enable keyboard reboot");
140#endif
141#ifndef SC_DISABLE_KDBKEY
142SYSCTL_INT(_hw_syscons, OID_AUTO, kbd_debug, CTLFLAG_RW|CTLFLAG_SECURE, &enable_kdbkey,
143    0, "enable keyboard debug");
144#endif
145#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
146#include "font.h"
147#endif
148
149	tsw_ioctl_t	*sc_user_ioctl;
150
151static	bios_values_t	bios_value;
152
153static	int		enable_panic_key;
154SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
155	   0, "Enable panic via keypress specified in kbdmap(5)");
156
157#define SC_CONSOLECTL	255
158
159#define VTY_WCHAN(sc, vty) (&SC_DEV(sc, vty))
160
161static	int		debugger;
162
163/* prototypes */
164static int sc_allocate_keyboard(sc_softc_t *sc, int unit);
165static int scvidprobe(int unit, int flags, int cons);
166static int sckbdprobe(int unit, int flags, int cons);
167static void scmeminit(void *arg);
168static int scdevtounit(struct tty *tp);
169static kbd_callback_func_t sckbdevent;
170static void scinit(int unit, int flags);
171static scr_stat *sc_get_stat(struct tty *tp);
172static void scterm(int unit, int flags);
173static void scshutdown(void *arg, int howto);
174static u_int scgetc(sc_softc_t *sc, u_int flags);
175#define SCGETC_CN	1
176#define SCGETC_NONBLOCK	2
177static void sccnupdate(scr_stat *scp);
178static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
179static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
180static timeout_t scrn_timer;
181static int and_region(int *s1, int *e1, int s2, int e2);
182static void scrn_update(scr_stat *scp, int show_cursor);
183
184#ifdef DEV_SPLASH
185static int scsplash_callback(int event, void *arg);
186static void scsplash_saver(sc_softc_t *sc, int show);
187static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
188static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
189static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border);
190static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
191static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
192static int wait_scrn_saver_stop(sc_softc_t *sc);
193#define scsplash_stick(stick)		(sticky_splash = (stick))
194#else /* !DEV_SPLASH */
195#define scsplash_stick(stick)
196#endif /* DEV_SPLASH */
197
198static int do_switch_scr(sc_softc_t *sc, int s);
199static int vt_proc_alive(scr_stat *scp);
200static int signal_vt_rel(scr_stat *scp);
201static int signal_vt_acq(scr_stat *scp);
202static int finish_vt_rel(scr_stat *scp, int release, int *s);
203static int finish_vt_acq(scr_stat *scp);
204static void exchange_scr(sc_softc_t *sc);
205static void update_cursor_image(scr_stat *scp);
206static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
207static int save_kbd_state(scr_stat *scp);
208static int update_kbd_state(scr_stat *scp, int state, int mask);
209static int update_kbd_leds(scr_stat *scp, int which);
210static timeout_t blink_screen;
211static struct tty *sc_alloc_tty(int, int);
212
213static cn_probe_t	sc_cnprobe;
214static cn_init_t	sc_cninit;
215static cn_term_t	sc_cnterm;
216static cn_getc_t	sc_cngetc;
217static cn_putc_t	sc_cnputc;
218
219CONSOLE_DRIVER(sc);
220
221static	tsw_open_t	sctty_open;
222static	tsw_close_t	sctty_close;
223static	tsw_outwakeup_t	sctty_outwakeup;
224static	tsw_ioctl_t	sctty_ioctl;
225static	tsw_mmap_t	sctty_mmap;
226
227static struct ttydevsw sc_ttydevsw = {
228	.tsw_open	= sctty_open,
229	.tsw_close	= sctty_close,
230	.tsw_outwakeup	= sctty_outwakeup,
231	.tsw_ioctl	= sctty_ioctl,
232	.tsw_mmap	= sctty_mmap,
233};
234
235static d_ioctl_t	consolectl_ioctl;
236
237static struct cdevsw consolectl_devsw = {
238	.d_version	= D_VERSION,
239	.d_flags	= D_NEEDGIANT,
240	.d_ioctl	= consolectl_ioctl,
241	.d_name		= "consolectl",
242};
243
244int
245sc_probe_unit(int unit, int flags)
246{
247    if (!scvidprobe(unit, flags, FALSE)) {
248	if (bootverbose)
249	    printf("%s%d: no video adapter found.\n", SC_DRIVER_NAME, unit);
250	return ENXIO;
251    }
252
253    /* syscons will be attached even when there is no keyboard */
254    sckbdprobe(unit, flags, FALSE);
255
256    return 0;
257}
258
259/* probe video adapters, return TRUE if found */
260static int
261scvidprobe(int unit, int flags, int cons)
262{
263    /*
264     * Access the video adapter driver through the back door!
265     * Video adapter drivers need to be configured before syscons.
266     * However, when syscons is being probed as the low-level console,
267     * they have not been initialized yet.  We force them to initialize
268     * themselves here. XXX
269     */
270    vid_configure(cons ? VIO_PROBE_ONLY : 0);
271
272    return (vid_find_adapter("*", unit) >= 0);
273}
274
275/* probe the keyboard, return TRUE if found */
276static int
277sckbdprobe(int unit, int flags, int cons)
278{
279    /* access the keyboard driver through the backdoor! */
280    kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
281
282    return (kbd_find_keyboard("*", unit) >= 0);
283}
284
285static char
286*adapter_name(video_adapter_t *adp)
287{
288    static struct {
289	int type;
290	char *name[2];
291    } names[] = {
292	{ KD_MONO,	{ "MDA",	"MDA" } },
293	{ KD_HERCULES,	{ "Hercules",	"Hercules" } },
294	{ KD_CGA,	{ "CGA",	"CGA" } },
295	{ KD_EGA,	{ "EGA",	"EGA (mono)" } },
296	{ KD_VGA,	{ "VGA",	"VGA (mono)" } },
297	{ KD_PC98,	{ "PC-98x1",	"PC-98x1" } },
298	{ KD_TGA,	{ "TGA",	"TGA" } },
299	{ -1,		{ "Unknown",	"Unknown" } },
300    };
301    int i;
302
303    for (i = 0; names[i].type != -1; ++i)
304	if (names[i].type == adp->va_type)
305	    break;
306    return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
307}
308
309static void
310sctty_outwakeup(struct tty *tp)
311{
312    size_t len;
313    u_char buf[PCBURST];
314    scr_stat *scp = sc_get_stat(tp);
315
316    if (scp->status & SLKED ||
317	(scp == scp->sc->cur_scp && scp->sc->blink_in_progress))
318	return;
319
320    for (;;) {
321	len = ttydisc_getc(tp, buf, sizeof buf);
322	if (len == 0)
323	    break;
324	sc_puts(scp, buf, len, 0);
325    }
326}
327
328static struct tty *
329sc_alloc_tty(int index, int devnum)
330{
331	struct sc_ttysoftc *stc;
332	struct tty *tp;
333
334	/* Allocate TTY object and softc to store unit number. */
335	stc = malloc(sizeof(struct sc_ttysoftc), M_DEVBUF, M_WAITOK);
336	stc->st_index = index;
337	stc->st_stat = NULL;
338	tp = tty_alloc_mutex(&sc_ttydevsw, stc, &Giant);
339
340	/* Create device node. */
341	tty_makedev(tp, NULL, "v%r", devnum);
342
343	return (tp);
344}
345
346#ifdef SC_PIXEL_MODE
347static int
348sc_initial_mode(video_adapter_t *adp, int unit)
349{
350	video_info_t info;
351	int depth, vmode;
352	int i;
353
354	vmode = 0;
355	(void)resource_int_value("sc", unit, "vesa_mode", &vmode);
356	if (vmode < M_VESA_BASE || vmode > M_VESA_MODE_MAX)
357	    vmode = 0;
358
359	/*
360	 * If the default mode is not supported, search for an available
361	 * 800x600 graphics mode with the highest color depth.
362	 */
363	if (vmode == 0 || vidd_get_info(adp, vmode, &info) != 0) {
364	    depth = vmode = 0;
365	    for (i = M_VESA_BASE; i <= M_VESA_MODE_MAX; i++)
366		if (vidd_get_info(adp, i, &info) == 0 &&
367		    (info.vi_flags & V_INFO_GRAPHICS) != 0 &&
368		    info.vi_width == 800 && info.vi_height == 600 &&
369		    info.vi_depth > depth) {
370			vmode = i;
371			depth = info.vi_depth;
372		}
373	}
374
375	return (vmode);
376}
377#endif
378
379int
380sc_attach_unit(int unit, int flags)
381{
382    sc_softc_t *sc;
383    scr_stat *scp;
384    int vc;
385    struct cdev *dev;
386
387    flags &= ~SC_KERNEL_CONSOLE;
388
389    if (sc_console_unit == unit) {
390	/*
391	 * If this unit is being used as the system console, we need to
392	 * adjust some variables and buffers before and after scinit().
393	 */
394	/* assert(sc_console != NULL) */
395	flags |= SC_KERNEL_CONSOLE;
396	scmeminit(NULL);
397    }
398    scinit(unit, flags);
399
400    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
401    sc->config = flags;
402    scp = sc_get_stat(sc->dev[0]);
403    if (sc_console == NULL)	/* sc_console_unit < 0 */
404	sc_console = scp;
405
406#ifdef SC_PIXEL_MODE
407    if ((sc->config & SC_VESAMODE) != 0) {
408	int vmode;
409	vmode = sc_initial_mode(sc->adp, unit);
410	if (vmode >= M_VESA_BASE) {
411#ifdef DEV_SPLASH
412	    if (sc->flags & SC_SPLASH_SCRN)
413		splash_term(sc->adp);
414#endif
415	    sc_set_graphics_mode(scp, NULL, vmode);
416	    sc_set_pixel_mode(scp, NULL, 0, 0, 16, 8);
417#ifndef SC_NO_PALETTE_LOADING
418	    vidd_save_palette(sc->adp, sc->palette);
419#endif
420	    sc->initial_mode = vmode;
421#ifdef DEV_SPLASH
422	    /* put up the splash again! */
423	    if (sc->flags & SC_SPLASH_SCRN)
424		splash_init(sc->adp, scsplash_callback, sc);
425#endif
426	}
427    }
428#endif /* SC_PIXEL_MODE */
429
430    /* initialize cursor */
431    if (!ISGRAPHSC(scp))
432    	update_cursor_image(scp);
433
434    /* get screen update going */
435    scrn_timer(sc);
436
437    /* set up the keyboard */
438    kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
439    update_kbd_state(scp, scp->status, LOCK_MASK);
440
441    printf("%s%d: %s <%d virtual consoles, flags=0x%x>\n",
442	   SC_DRIVER_NAME, unit, adapter_name(sc->adp), sc->vtys, sc->config);
443    if (bootverbose) {
444	printf("%s%d:", SC_DRIVER_NAME, unit);
445    	if (sc->adapter >= 0)
446	    printf(" fb%d", sc->adapter);
447	if (sc->keyboard >= 0)
448	    printf(", kbd%d", sc->keyboard);
449	if (scp->tsw)
450	    printf(", terminal emulator: %s (%s)",
451		   scp->tsw->te_name, scp->tsw->te_desc);
452	printf("\n");
453    }
454
455    /* register a shutdown callback for the kernel console */
456    if (sc_console_unit == unit)
457	EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown,
458			      (void *)(uintptr_t)unit, SHUTDOWN_PRI_DEFAULT);
459
460    for (vc = 0; vc < sc->vtys; vc++) {
461	if (sc->dev[vc] == NULL) {
462		sc->dev[vc] = sc_alloc_tty(vc, vc + unit * MAXCONS);
463		if (vc == 0 && sc->dev == main_devs)
464			SC_STAT(sc->dev[0]) = &main_console;
465	}
466	/*
467	 * The first vty already has struct tty and scr_stat initialized
468	 * in scinit().  The other vtys will have these structs when
469	 * first opened.
470	 */
471    }
472
473    dev = make_dev(&consolectl_devsw, 0, UID_ROOT, GID_WHEEL, 0600,
474        "consolectl");
475    dev->si_drv1 = sc->dev[0];
476
477    return 0;
478}
479
480static void
481scmeminit(void *arg)
482{
483    if (sc_malloc)
484	return;
485    sc_malloc = TRUE;
486
487    /*
488     * As soon as malloc() becomes functional, we had better allocate
489     * various buffers for the kernel console.
490     */
491
492    if (sc_console_unit < 0)	/* sc_console == NULL */
493	return;
494
495    /* copy the temporary buffer to the final buffer */
496    sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
497
498#ifndef SC_NO_CUTPASTE
499    sc_alloc_cut_buffer(sc_console, FALSE);
500#endif
501
502#ifndef SC_NO_HISTORY
503    /* initialize history buffer & pointers */
504    sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
505#endif
506}
507
508/* XXX */
509SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
510
511static int
512scdevtounit(struct tty *tp)
513{
514    int vty = SC_VTY(tp);
515
516    if (vty == SC_CONSOLECTL)
517	return ((sc_console != NULL) ? sc_console->sc->unit : -1);
518    else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit()))
519	return -1;
520    else
521	return vty/MAXCONS;
522}
523
524static int
525sctty_open(struct tty *tp)
526{
527    int unit = scdevtounit(tp);
528    sc_softc_t *sc;
529    scr_stat *scp;
530#ifndef __sparc64__
531    keyarg_t key;
532#endif
533
534    DPRINTF(5, ("scopen: dev:%s, unit:%d, vty:%d\n",
535		devtoname(tp->t_dev), unit, SC_VTY(tp)));
536
537    sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
538    if (sc == NULL)
539	return ENXIO;
540
541    if (!tty_opened(tp)) {
542        /* Use the current setting of the <-- key as default VERASE. */
543        /* If the Delete key is preferable, an stty is necessary     */
544#ifndef __sparc64__
545	if (sc->kbd != NULL) {
546	    key.keynum = KEYCODE_BS;
547	    kbdd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
548            tp->t_termios.c_cc[VERASE] = key.key.map[0];
549	}
550#endif
551    }
552
553    scp = sc_get_stat(tp);
554    if (scp == NULL) {
555	scp = SC_STAT(tp) = alloc_scp(sc, SC_VTY(tp));
556	if (ISGRAPHSC(scp))
557	    sc_set_pixel_mode(scp, NULL, 0, 0, 16, 8);
558    }
559    if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
560	tp->t_winsize.ws_col = scp->xsize;
561	tp->t_winsize.ws_row = scp->ysize;
562    }
563
564    return (0);
565}
566
567static void
568sctty_close(struct tty *tp)
569{
570    scr_stat *scp;
571    int s;
572
573    if (SC_VTY(tp) != SC_CONSOLECTL) {
574	scp = sc_get_stat(tp);
575	/* were we in the middle of the VT switching process? */
576	DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
577	s = spltty();
578	if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit))
579	    cnavailable(sc_consptr, TRUE);
580	if (finish_vt_rel(scp, TRUE, &s) == 0)	/* force release */
581	    DPRINTF(5, ("reset WAIT_REL, "));
582	if (finish_vt_acq(scp) == 0)		/* force acknowledge */
583	    DPRINTF(5, ("reset WAIT_ACQ, "));
584#ifdef not_yet_done
585	if (scp == &main_console) {
586	    scp->pid = 0;
587	    scp->proc = NULL;
588	    scp->smode.mode = VT_AUTO;
589	}
590	else {
591	    sc_vtb_destroy(&scp->vtb);
592#ifndef __sparc64__
593	    sc_vtb_destroy(&scp->scr);
594#endif
595	    sc_free_history_buffer(scp, scp->ysize);
596	    SC_STAT(tp) = NULL;
597	    free(scp, M_DEVBUF);
598	}
599#else
600	scp->pid = 0;
601	scp->proc = NULL;
602	scp->smode.mode = VT_AUTO;
603#endif
604	scp->kbd_mode = K_XLATE;
605	if (scp == scp->sc->cur_scp)
606	    kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
607	DPRINTF(5, ("done.\n"));
608    }
609}
610
611#if 0 /* XXX mpsafetty: fix screensaver. What about outwakeup? */
612static int
613scread(struct cdev *dev, struct uio *uio, int flag)
614{
615    if (!sc_saver_keyb_only)
616	sc_touch_scrn_saver();
617    return ttyread(dev, uio, flag);
618}
619#endif
620
621static int
622sckbdevent(keyboard_t *thiskbd, int event, void *arg)
623{
624    sc_softc_t *sc;
625    struct tty *cur_tty;
626    int c, error = 0;
627    size_t len;
628    const u_char *cp;
629
630    sc = (sc_softc_t *)arg;
631    /* assert(thiskbd == sc->kbd) */
632
633    mtx_lock(&Giant);
634
635    switch (event) {
636    case KBDIO_KEYINPUT:
637	break;
638    case KBDIO_UNLOADING:
639	sc->kbd = NULL;
640	sc->keyboard = -1;
641	kbd_release(thiskbd, (void *)&sc->keyboard);
642	goto done;
643    default:
644	error = EINVAL;
645	goto done;
646    }
647
648    /*
649     * Loop while there is still input to get from the keyboard.
650     * I don't think this is nessesary, and it doesn't fix
651     * the Xaccel-2.1 keyboard hang, but it can't hurt.		XXX
652     */
653    while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) {
654
655	cur_tty = SC_DEV(sc, sc->cur_scp->index);
656	if (!tty_opened(cur_tty))
657	    continue;
658
659	if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
660	    continue;
661
662	switch (KEYFLAGS(c)) {
663	case 0x0000: /* normal key */
664	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
665	    break;
666	case FKEY:  /* function key, return string */
667	    cp = (*sc->cur_scp->tsw->te_fkeystr)(sc->cur_scp, c);
668	    if (cp != NULL) {
669	    	ttydisc_rint_simple(cur_tty, cp, strlen(cp));
670		break;
671	    }
672	    cp = kbdd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
673	    if (cp != NULL)
674	    	ttydisc_rint_simple(cur_tty, cp, len);
675	    break;
676	case MKEY:  /* meta is active, prepend ESC */
677	    ttydisc_rint(cur_tty, 0x1b, 0);
678	    ttydisc_rint(cur_tty, KEYCHAR(c), 0);
679	    break;
680	case BKEY:  /* backtab fixed sequence (esc [ Z) */
681	    ttydisc_rint_simple(cur_tty, "\x1B[Z", 3);
682	    break;
683	}
684
685	ttydisc_rint_done(cur_tty);
686    }
687
688    sc->cur_scp->status |= MOUSE_HIDDEN;
689
690done:
691    mtx_unlock(&Giant);
692    return (error);
693}
694
695static int
696sctty_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
697{
698    int error;
699    int i;
700    sc_softc_t *sc;
701    scr_stat *scp;
702    int s;
703#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
704    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
705    int ival;
706#endif
707
708    /* If there is a user_ioctl function call that first */
709    if (sc_user_ioctl) {
710	error = (*sc_user_ioctl)(tp, cmd, data, td);
711	if (error != ENOIOCTL)
712	    return error;
713    }
714
715    error = sc_vid_ioctl(tp, cmd, data, td);
716    if (error != ENOIOCTL)
717	return error;
718
719#ifndef SC_NO_HISTORY
720    error = sc_hist_ioctl(tp, cmd, data, td);
721    if (error != ENOIOCTL)
722	return error;
723#endif
724
725#ifndef SC_NO_SYSMOUSE
726    error = sc_mouse_ioctl(tp, cmd, data, td);
727    if (error != ENOIOCTL)
728	return error;
729#endif
730
731    scp = sc_get_stat(tp);
732    /* assert(scp != NULL) */
733    /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
734    sc = scp->sc;
735
736    if (scp->tsw) {
737	error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, td);
738	if (error != ENOIOCTL)
739	    return error;
740    }
741
742    switch (cmd) {  		/* process console hardware related ioctl's */
743
744    case GIO_ATTR:      	/* get current attributes */
745	/* this ioctl is not processed here, but in the terminal emulator */
746	return ENOTTY;
747
748    case GIO_COLOR:     	/* is this a color console ? */
749	*(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
750	return 0;
751
752    case CONS_BLANKTIME:    	/* set screen saver timeout (0 = no saver) */
753	if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
754            return EINVAL;
755	s = spltty();
756	scrn_blank_time = *(int *)data;
757	run_scrn_saver = (scrn_blank_time != 0);
758	splx(s);
759	return 0;
760
761    case CONS_CURSORTYPE:   	/* set cursor type (obsolete) */
762	s = spltty();
763	*(int *)data &= CONS_CURSOR_ATTRS;
764	sc_change_cursor_shape(scp, *(int *)data, -1, -1);
765	splx(s);
766	return 0;
767
768    case CONS_GETCURSORSHAPE:   /* get cursor shape (new interface) */
769	if (((int *)data)[0] & CONS_LOCAL_CURSOR) {
770	    ((int *)data)[0] = scp->curr_curs_attr.flags;
771	    ((int *)data)[1] = scp->curr_curs_attr.base;
772	    ((int *)data)[2] = scp->curr_curs_attr.height;
773	} else {
774	    ((int *)data)[0] = sc->curs_attr.flags;
775	    ((int *)data)[1] = sc->curs_attr.base;
776	    ((int *)data)[2] = sc->curs_attr.height;
777	}
778	return 0;
779
780    case CONS_SETCURSORSHAPE:   /* set cursor shape (new interface) */
781	s = spltty();
782	sc_change_cursor_shape(scp, ((int *)data)[0],
783	    ((int *)data)[1], ((int *)data)[2]);
784	splx(s);
785	return 0;
786
787    case CONS_BELLTYPE: 	/* set bell type sound/visual */
788	if ((*(int *)data) & CONS_VISUAL_BELL)
789	    sc->flags |= SC_VISUAL_BELL;
790	else
791	    sc->flags &= ~SC_VISUAL_BELL;
792	if ((*(int *)data) & CONS_QUIET_BELL)
793	    sc->flags |= SC_QUIET_BELL;
794	else
795	    sc->flags &= ~SC_QUIET_BELL;
796	return 0;
797
798    case CONS_GETINFO:  	/* get current (virtual) console info */
799    {
800	vid_info_t *ptr = (vid_info_t*)data;
801	if (ptr->size == sizeof(struct vid_info)) {
802	    ptr->m_num = sc->cur_scp->index;
803	    ptr->font_size = scp->font_size;
804	    ptr->mv_col = scp->xpos;
805	    ptr->mv_row = scp->ypos;
806	    ptr->mv_csz = scp->xsize;
807	    ptr->mv_rsz = scp->ysize;
808	    ptr->mv_hsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
809	    /*
810	     * The following fields are filled by the terminal emulator. XXX
811	     *
812	     * ptr->mv_norm.fore
813	     * ptr->mv_norm.back
814	     * ptr->mv_rev.fore
815	     * ptr->mv_rev.back
816	     */
817	    ptr->mv_grfc.fore = 0;      /* not supported */
818	    ptr->mv_grfc.back = 0;      /* not supported */
819	    ptr->mv_ovscan = scp->border;
820	    if (scp == sc->cur_scp)
821		save_kbd_state(scp);
822	    ptr->mk_keylock = scp->status & LOCK_MASK;
823	    return 0;
824	}
825	return EINVAL;
826    }
827
828    case CONS_GETVERS:  	/* get version number */
829	*(int*)data = 0x200;    /* version 2.0 */
830	return 0;
831
832    case CONS_IDLE:		/* see if the screen has been idle */
833	/*
834	 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
835	 * the user process may have been writing something on the
836	 * screen and syscons is not aware of it. Declare the screen
837	 * is NOT idle if it is in one of these modes. But there is
838	 * an exception to it; if a screen saver is running in the
839	 * graphics mode in the current screen, we should say that the
840	 * screen has been idle.
841	 */
842	*(int *)data = (sc->flags & SC_SCRN_IDLE)
843		       && (!ISGRAPHSC(sc->cur_scp)
844			   || (sc->cur_scp->status & SAVER_RUNNING));
845	return 0;
846
847    case CONS_SAVERMODE:	/* set saver mode */
848	switch(*(int *)data) {
849	case CONS_NO_SAVER:
850	case CONS_USR_SAVER:
851	    /* if a LKM screen saver is running, stop it first. */
852	    scsplash_stick(FALSE);
853	    saver_mode = *(int *)data;
854	    s = spltty();
855#ifdef DEV_SPLASH
856	    if ((error = wait_scrn_saver_stop(NULL))) {
857		splx(s);
858		return error;
859	    }
860#endif
861	    run_scrn_saver = TRUE;
862	    if (saver_mode == CONS_USR_SAVER)
863		scp->status |= SAVER_RUNNING;
864	    else
865		scp->status &= ~SAVER_RUNNING;
866	    scsplash_stick(TRUE);
867	    splx(s);
868	    break;
869	case CONS_LKM_SAVER:
870	    s = spltty();
871	    if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING))
872		scp->status &= ~SAVER_RUNNING;
873	    saver_mode = *(int *)data;
874	    splx(s);
875	    break;
876	default:
877	    return EINVAL;
878	}
879	return 0;
880
881    case CONS_SAVERSTART:	/* immediately start/stop the screen saver */
882	/*
883	 * Note that this ioctl does not guarantee the screen saver
884	 * actually starts or stops. It merely attempts to do so...
885	 */
886	s = spltty();
887	run_scrn_saver = (*(int *)data != 0);
888	if (run_scrn_saver)
889	    sc->scrn_time_stamp -= scrn_blank_time;
890	splx(s);
891	return 0;
892
893    case CONS_SCRSHOT:		/* get a screen shot */
894    {
895	int retval, hist_rsz;
896	size_t lsize, csize;
897	vm_offset_t frbp, hstp;
898	unsigned lnum;
899	scrshot_t *ptr = (scrshot_t *)data;
900	void *outp = ptr->buf;
901
902	if (ptr->x < 0 || ptr->y < 0 || ptr->xsize < 0 || ptr->ysize < 0)
903		return EINVAL;
904	s = spltty();
905	if (ISGRAPHSC(scp)) {
906	    splx(s);
907	    return EOPNOTSUPP;
908	}
909	hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
910	if (((u_int)ptr->x + ptr->xsize) > scp->xsize ||
911	    ((u_int)ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
912	    splx(s);
913	    return EINVAL;
914	}
915
916	lsize = scp->xsize * sizeof(u_int16_t);
917	csize = ptr->xsize * sizeof(u_int16_t);
918	/* Pointer to the last line of framebuffer */
919	frbp = scp->vtb.vtb_buffer + scp->ysize * lsize + ptr->x *
920	       sizeof(u_int16_t);
921	/* Pointer to the last line of target buffer */
922	outp = (char *)outp + ptr->ysize * csize;
923	/* Pointer to the last line of history buffer */
924	if (scp->history != NULL)
925	    hstp = scp->history->vtb_buffer + sc_vtb_tail(scp->history) *
926		sizeof(u_int16_t) + ptr->x * sizeof(u_int16_t);
927	else
928	    hstp = 0;
929
930	retval = 0;
931	for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
932	    if (lnum < scp->ysize) {
933		frbp -= lsize;
934	    } else {
935		hstp -= lsize;
936		if (hstp < scp->history->vtb_buffer)
937		    hstp += scp->history->vtb_rows * lsize;
938		frbp = hstp;
939	    }
940	    if (lnum < ptr->y)
941		continue;
942	    outp = (char *)outp - csize;
943	    retval = copyout((void *)frbp, outp, csize);
944	    if (retval != 0)
945		break;
946	}
947	splx(s);
948	return retval;
949    }
950
951    case VT_SETMODE:    	/* set screen switcher mode */
952    {
953	struct vt_mode *mode;
954	struct proc *p1;
955
956	mode = (struct vt_mode *)data;
957	DPRINTF(5, ("%s%d: VT_SETMODE ", SC_DRIVER_NAME, sc->unit));
958	if (scp->smode.mode == VT_PROCESS) {
959	    p1 = pfind(scp->pid);
960    	    if (scp->proc == p1 && scp->proc != td->td_proc) {
961		if (p1)
962		    PROC_UNLOCK(p1);
963		DPRINTF(5, ("error EPERM\n"));
964		return EPERM;
965	    }
966	    if (p1)
967		PROC_UNLOCK(p1);
968	}
969	s = spltty();
970	if (mode->mode == VT_AUTO) {
971	    scp->smode.mode = VT_AUTO;
972	    scp->proc = NULL;
973	    scp->pid = 0;
974	    DPRINTF(5, ("VT_AUTO, "));
975	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
976		cnavailable(sc_consptr, TRUE);
977	    /* were we in the middle of the vty switching process? */
978	    if (finish_vt_rel(scp, TRUE, &s) == 0)
979		DPRINTF(5, ("reset WAIT_REL, "));
980	    if (finish_vt_acq(scp) == 0)
981		DPRINTF(5, ("reset WAIT_ACQ, "));
982	} else {
983	    if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig)
984		|| !ISSIGVALID(mode->frsig)) {
985		splx(s);
986		DPRINTF(5, ("error EINVAL\n"));
987		return EINVAL;
988	    }
989	    DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
990	    bcopy(data, &scp->smode, sizeof(struct vt_mode));
991	    scp->proc = td->td_proc;
992	    scp->pid = scp->proc->p_pid;
993	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
994		cnavailable(sc_consptr, FALSE);
995	}
996	splx(s);
997	DPRINTF(5, ("\n"));
998	return 0;
999    }
1000
1001    case VT_GETMODE:    	/* get screen switcher mode */
1002	bcopy(&scp->smode, data, sizeof(struct vt_mode));
1003	return 0;
1004
1005#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1006    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1007    case _IO('v', 4):
1008	ival = IOCPARM_IVAL(data);
1009	data = (caddr_t)&ival;
1010	/* FALLTHROUGH */
1011#endif
1012    case VT_RELDISP:    	/* screen switcher ioctl */
1013	s = spltty();
1014	/*
1015	 * This must be the current vty which is in the VT_PROCESS
1016	 * switching mode...
1017	 */
1018	if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
1019	    splx(s);
1020	    return EINVAL;
1021	}
1022	/* ...and this process is controlling it. */
1023	if (scp->proc != td->td_proc) {
1024	    splx(s);
1025	    return EPERM;
1026	}
1027	error = EINVAL;
1028	switch(*(int *)data) {
1029	case VT_FALSE:  	/* user refuses to release screen, abort */
1030	    if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
1031		DPRINTF(5, ("%s%d: VT_FALSE\n", SC_DRIVER_NAME, sc->unit));
1032	    break;
1033	case VT_TRUE:   	/* user has released screen, go on */
1034	    if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
1035		DPRINTF(5, ("%s%d: VT_TRUE\n", SC_DRIVER_NAME, sc->unit));
1036	    break;
1037	case VT_ACKACQ: 	/* acquire acknowledged, switch completed */
1038	    if ((error = finish_vt_acq(scp)) == 0)
1039		DPRINTF(5, ("%s%d: VT_ACKACQ\n", SC_DRIVER_NAME, sc->unit));
1040	    break;
1041	default:
1042	    break;
1043	}
1044	splx(s);
1045	return error;
1046
1047    case VT_OPENQRY:    	/* return free virtual console */
1048	for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
1049	    tp = SC_DEV(sc, i);
1050	    if (!tty_opened(tp)) {
1051		*(int *)data = i + 1;
1052		return 0;
1053	    }
1054	}
1055	return EINVAL;
1056
1057#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1058    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1059    case _IO('v', 5):
1060	ival = IOCPARM_IVAL(data);
1061	data = (caddr_t)&ival;
1062	/* FALLTHROUGH */
1063#endif
1064    case VT_ACTIVATE:   	/* switch to screen *data */
1065	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1066	s = spltty();
1067	error = sc_clean_up(sc->cur_scp);
1068	splx(s);
1069	if (error)
1070	    return error;
1071	error = sc_switch_scr(sc, i);
1072	return (error);
1073
1074#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1075    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1076    case _IO('v', 6):
1077	ival = IOCPARM_IVAL(data);
1078	data = (caddr_t)&ival;
1079	/* FALLTHROUGH */
1080#endif
1081    case VT_WAITACTIVE: 	/* wait for switch to occur */
1082	i = (*(int *)data == 0) ? scp->index : (*(int *)data - 1);
1083	if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
1084	    return EINVAL;
1085	if (i == sc->cur_scp->index)
1086	    return 0;
1087	error = tsleep(VTY_WCHAN(sc, i), (PZERO + 1) | PCATCH, "waitvt", 0);
1088	return error;
1089
1090    case VT_GETACTIVE:		/* get active vty # */
1091	*(int *)data = sc->cur_scp->index + 1;
1092	return 0;
1093
1094    case VT_GETINDEX:		/* get this vty # */
1095	*(int *)data = scp->index + 1;
1096	return 0;
1097
1098    case VT_LOCKSWITCH:		/* prevent vty switching */
1099	if ((*(int *)data) & 0x01)
1100	    sc->flags |= SC_SCRN_VTYLOCK;
1101	else
1102	    sc->flags &= ~SC_SCRN_VTYLOCK;
1103	return 0;
1104
1105    case KDENABIO:      	/* allow io operations */
1106	error = priv_check(td, PRIV_IO);
1107	if (error != 0)
1108	    return error;
1109	error = securelevel_gt(td->td_ucred, 0);
1110	if (error != 0)
1111		return error;
1112#ifdef __i386__
1113	td->td_frame->tf_eflags |= PSL_IOPL;
1114#elif defined(__amd64__)
1115	td->td_frame->tf_rflags |= PSL_IOPL;
1116#endif
1117	return 0;
1118
1119    case KDDISABIO:     	/* disallow io operations (default) */
1120#ifdef __i386__
1121	td->td_frame->tf_eflags &= ~PSL_IOPL;
1122#elif defined(__amd64__)
1123	td->td_frame->tf_rflags &= ~PSL_IOPL;
1124#endif
1125	return 0;
1126
1127#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1128    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1129    case _IO('K', 20):
1130	ival = IOCPARM_IVAL(data);
1131	data = (caddr_t)&ival;
1132	/* FALLTHROUGH */
1133#endif
1134    case KDSKBSTATE:    	/* set keyboard state (locks) */
1135	if (*(int *)data & ~LOCK_MASK)
1136	    return EINVAL;
1137	scp->status &= ~LOCK_MASK;
1138	scp->status |= *(int *)data;
1139	if (scp == sc->cur_scp)
1140	    update_kbd_state(scp, scp->status, LOCK_MASK);
1141	return 0;
1142
1143    case KDGKBSTATE:    	/* get keyboard state (locks) */
1144	if (scp == sc->cur_scp)
1145	    save_kbd_state(scp);
1146	*(int *)data = scp->status & LOCK_MASK;
1147	return 0;
1148
1149    case KDGETREPEAT:      	/* get keyboard repeat & delay rates */
1150    case KDSETREPEAT:      	/* set keyboard repeat & delay rates (new) */
1151	error = kbdd_ioctl(sc->kbd, cmd, data);
1152	if (error == ENOIOCTL)
1153	    error = ENODEV;
1154	return error;
1155
1156#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1157    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1158    case _IO('K', 67):
1159	ival = IOCPARM_IVAL(data);
1160	data = (caddr_t)&ival;
1161	/* FALLTHROUGH */
1162#endif
1163    case KDSETRAD:      	/* set keyboard repeat & delay rates (old) */
1164	if (*(int *)data & ~0x7f)
1165	    return EINVAL;
1166	error = kbdd_ioctl(sc->kbd, KDSETRAD, data);
1167	if (error == ENOIOCTL)
1168	    error = ENODEV;
1169	return error;
1170
1171#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1172    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1173    case _IO('K', 7):
1174	ival = IOCPARM_IVAL(data);
1175	data = (caddr_t)&ival;
1176	/* FALLTHROUGH */
1177#endif
1178    case KDSKBMODE:     	/* set keyboard mode */
1179	switch (*(int *)data) {
1180	case K_XLATE:   	/* switch to XLT ascii mode */
1181	case K_RAW: 		/* switch to RAW scancode mode */
1182	case K_CODE: 		/* switch to CODE mode */
1183	    scp->kbd_mode = *(int *)data;
1184	    if (scp == sc->cur_scp)
1185		kbdd_ioctl(sc->kbd, KDSKBMODE, data);
1186	    return 0;
1187	default:
1188	    return EINVAL;
1189	}
1190	/* NOT REACHED */
1191
1192    case KDGKBMODE:     	/* get keyboard mode */
1193	*(int *)data = scp->kbd_mode;
1194	return 0;
1195
1196    case KDGKBINFO:
1197	error = kbdd_ioctl(sc->kbd, cmd, data);
1198	if (error == ENOIOCTL)
1199	    error = ENODEV;
1200	return error;
1201
1202#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1203    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1204    case _IO('K', 8):
1205	ival = IOCPARM_IVAL(data);
1206	data = (caddr_t)&ival;
1207	/* FALLTHROUGH */
1208#endif
1209    case KDMKTONE:      	/* sound the bell */
1210	if (*(int*)data)
1211	    sc_bell(scp, (*(int*)data)&0xffff,
1212		    (((*(int*)data)>>16)&0xffff)*hz/1000);
1213	else
1214	    sc_bell(scp, scp->bell_pitch, scp->bell_duration);
1215	return 0;
1216
1217#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1218    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1219    case _IO('K', 63):
1220	ival = IOCPARM_IVAL(data);
1221	data = (caddr_t)&ival;
1222	/* FALLTHROUGH */
1223#endif
1224    case KIOCSOUND:     	/* make tone (*data) hz */
1225	if (scp == sc->cur_scp) {
1226	    if (*(int *)data)
1227		return sc_tone(*(int *)data);
1228	    else
1229		return sc_tone(0);
1230	}
1231	return 0;
1232
1233    case KDGKBTYPE:     	/* get keyboard type */
1234	error = kbdd_ioctl(sc->kbd, cmd, data);
1235	if (error == ENOIOCTL) {
1236	    /* always return something? XXX */
1237	    *(int *)data = 0;
1238	}
1239	return 0;
1240
1241#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1242    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1243    case _IO('K', 66):
1244	ival = IOCPARM_IVAL(data);
1245	data = (caddr_t)&ival;
1246	/* FALLTHROUGH */
1247#endif
1248    case KDSETLED:      	/* set keyboard LED status */
1249	if (*(int *)data & ~LED_MASK)	/* FIXME: LOCK_MASK? */
1250	    return EINVAL;
1251	scp->status &= ~LED_MASK;
1252	scp->status |= *(int *)data;
1253	if (scp == sc->cur_scp)
1254	    update_kbd_leds(scp, scp->status);
1255	return 0;
1256
1257    case KDGETLED:      	/* get keyboard LED status */
1258	if (scp == sc->cur_scp)
1259	    save_kbd_state(scp);
1260	*(int *)data = scp->status & LED_MASK;
1261	return 0;
1262
1263    case KBADDKBD:		/* add/remove keyboard to/from mux */
1264    case KBRELKBD:
1265	error = kbdd_ioctl(sc->kbd, cmd, data);
1266	if (error == ENOIOCTL)
1267	    error = ENODEV;
1268	return error;
1269
1270#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
1271    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
1272    case _IO('c', 110):
1273	ival = IOCPARM_IVAL(data);
1274	data = (caddr_t)&ival;
1275	/* FALLTHROUGH */
1276#endif
1277    case CONS_SETKBD: 		/* set the new keyboard */
1278	{
1279	    keyboard_t *newkbd;
1280
1281	    s = spltty();
1282	    newkbd = kbd_get_keyboard(*(int *)data);
1283	    if (newkbd == NULL) {
1284		splx(s);
1285		return EINVAL;
1286	    }
1287	    error = 0;
1288	    if (sc->kbd != newkbd) {
1289		i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
1290				 (void *)&sc->keyboard, sckbdevent, sc);
1291		/* i == newkbd->kb_index */
1292		if (i >= 0) {
1293		    if (sc->kbd != NULL) {
1294			save_kbd_state(sc->cur_scp);
1295			kbd_release(sc->kbd, (void *)&sc->keyboard);
1296		    }
1297		    sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */
1298		    sc->keyboard = i;
1299		    kbdd_ioctl(sc->kbd, KDSKBMODE,
1300			      (caddr_t)&sc->cur_scp->kbd_mode);
1301		    update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1302				     LOCK_MASK);
1303		} else {
1304		    error = EPERM;	/* XXX */
1305		}
1306	    }
1307	    splx(s);
1308	    return error;
1309	}
1310
1311    case CONS_RELKBD: 		/* release the current keyboard */
1312	s = spltty();
1313	error = 0;
1314	if (sc->kbd != NULL) {
1315	    save_kbd_state(sc->cur_scp);
1316	    error = kbd_release(sc->kbd, (void *)&sc->keyboard);
1317	    if (error == 0) {
1318		sc->kbd = NULL;
1319		sc->keyboard = -1;
1320	    }
1321	}
1322	splx(s);
1323	return error;
1324
1325    case CONS_GETTERM:		/* get the current terminal emulator info */
1326	{
1327	    sc_term_sw_t *sw;
1328
1329	    if (((term_info_t *)data)->ti_index == 0) {
1330		sw = scp->tsw;
1331	    } else {
1332		sw = sc_term_match_by_number(((term_info_t *)data)->ti_index);
1333	    }
1334	    if (sw != NULL) {
1335		strncpy(((term_info_t *)data)->ti_name, sw->te_name,
1336			sizeof(((term_info_t *)data)->ti_name));
1337		strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
1338			sizeof(((term_info_t *)data)->ti_desc));
1339		((term_info_t *)data)->ti_flags = 0;
1340		return 0;
1341	    } else {
1342		((term_info_t *)data)->ti_name[0] = '\0';
1343		((term_info_t *)data)->ti_desc[0] = '\0';
1344		((term_info_t *)data)->ti_flags = 0;
1345		return EINVAL;
1346	    }
1347	}
1348
1349    case CONS_SETTERM:		/* set the current terminal emulator */
1350	s = spltty();
1351	error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
1352	/* FIXME: what if scp == sc_console! XXX */
1353	splx(s);
1354	return error;
1355
1356    case GIO_SCRNMAP:   	/* get output translation table */
1357	bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
1358	return 0;
1359
1360    case PIO_SCRNMAP:   	/* set output translation table */
1361	bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
1362	for (i=0; i<sizeof(sc->scr_map); i++) {
1363	    sc->scr_rmap[sc->scr_map[i]] = i;
1364	}
1365	return 0;
1366
1367    case GIO_KEYMAP:		/* get keyboard translation table */
1368    case PIO_KEYMAP:		/* set keyboard translation table */
1369    case GIO_DEADKEYMAP:	/* get accent key translation table */
1370    case PIO_DEADKEYMAP:	/* set accent key translation table */
1371    case GETFKEY:		/* get function key string */
1372    case SETFKEY:		/* set function key string */
1373	error = kbdd_ioctl(sc->kbd, cmd, data);
1374	if (error == ENOIOCTL)
1375	    error = ENODEV;
1376	return error;
1377
1378#ifndef SC_NO_FONT_LOADING
1379
1380    case PIO_FONT8x8:   	/* set 8x8 dot font */
1381	if (!ISFONTAVAIL(sc->adp->va_flags))
1382	    return ENXIO;
1383	bcopy(data, sc->font_8, 8*256);
1384	sc->fonts_loaded |= FONT_8;
1385	/*
1386	 * FONT KLUDGE
1387	 * Always use the font page #0. XXX
1388	 * Don't load if the current font size is not 8x8.
1389	 */
1390	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
1391	    sc_load_font(sc->cur_scp, 0, 8, 8, sc->font_8, 0, 256);
1392	return 0;
1393
1394    case GIO_FONT8x8:   	/* get 8x8 dot font */
1395	if (!ISFONTAVAIL(sc->adp->va_flags))
1396	    return ENXIO;
1397	if (sc->fonts_loaded & FONT_8) {
1398	    bcopy(sc->font_8, data, 8*256);
1399	    return 0;
1400	}
1401	else
1402	    return ENXIO;
1403
1404    case PIO_FONT8x14:  	/* set 8x14 dot font */
1405	if (!ISFONTAVAIL(sc->adp->va_flags))
1406	    return ENXIO;
1407	bcopy(data, sc->font_14, 14*256);
1408	sc->fonts_loaded |= FONT_14;
1409	/*
1410	 * FONT KLUDGE
1411	 * Always use the font page #0. XXX
1412	 * Don't load if the current font size is not 8x14.
1413	 */
1414	if (ISTEXTSC(sc->cur_scp)
1415	    && (sc->cur_scp->font_size >= 14)
1416	    && (sc->cur_scp->font_size < 16))
1417	    sc_load_font(sc->cur_scp, 0, 14, 8, sc->font_14, 0, 256);
1418	return 0;
1419
1420    case GIO_FONT8x14:  	/* get 8x14 dot font */
1421	if (!ISFONTAVAIL(sc->adp->va_flags))
1422	    return ENXIO;
1423	if (sc->fonts_loaded & FONT_14) {
1424	    bcopy(sc->font_14, data, 14*256);
1425	    return 0;
1426	}
1427	else
1428	    return ENXIO;
1429
1430    case PIO_FONT8x16:  	/* set 8x16 dot font */
1431	if (!ISFONTAVAIL(sc->adp->va_flags))
1432	    return ENXIO;
1433	bcopy(data, sc->font_16, 16*256);
1434	sc->fonts_loaded |= FONT_16;
1435	/*
1436	 * FONT KLUDGE
1437	 * Always use the font page #0. XXX
1438	 * Don't load if the current font size is not 8x16.
1439	 */
1440	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
1441	    sc_load_font(sc->cur_scp, 0, 16, 8, sc->font_16, 0, 256);
1442	return 0;
1443
1444    case GIO_FONT8x16:  	/* get 8x16 dot font */
1445	if (!ISFONTAVAIL(sc->adp->va_flags))
1446	    return ENXIO;
1447	if (sc->fonts_loaded & FONT_16) {
1448	    bcopy(sc->font_16, data, 16*256);
1449	    return 0;
1450	}
1451	else
1452	    return ENXIO;
1453
1454#endif /* SC_NO_FONT_LOADING */
1455
1456    default:
1457	break;
1458    }
1459
1460    return (ENOIOCTL);
1461}
1462
1463static int
1464consolectl_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag,
1465    struct thread *td)
1466{
1467
1468	return sctty_ioctl(dev->si_drv1, cmd, data, td);
1469}
1470
1471static void
1472sc_cnprobe(struct consdev *cp)
1473{
1474    int unit;
1475    int flags;
1476
1477    cp->cn_pri = sc_get_cons_priority(&unit, &flags);
1478
1479    /* a video card is always required */
1480    if (!scvidprobe(unit, flags, TRUE))
1481	cp->cn_pri = CN_DEAD;
1482
1483    /* syscons will become console even when there is no keyboard */
1484    sckbdprobe(unit, flags, TRUE);
1485
1486    if (cp->cn_pri == CN_DEAD)
1487	return;
1488
1489    /* initialize required fields */
1490    strcpy(cp->cn_name, "ttyv0");
1491}
1492
1493static void
1494sc_cninit(struct consdev *cp)
1495{
1496    int unit;
1497    int flags;
1498
1499    sc_get_cons_priority(&unit, &flags);
1500    scinit(unit, flags | SC_KERNEL_CONSOLE);
1501    sc_console_unit = unit;
1502    sc_console = sc_get_stat(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1503    sc_consptr = cp;
1504}
1505
1506static void
1507sc_cnterm(struct consdev *cp)
1508{
1509    /* we are not the kernel console any more, release everything */
1510
1511    if (sc_console_unit < 0)
1512	return;			/* shouldn't happen */
1513
1514#if 0 /* XXX */
1515    sc_clear_screen(sc_console);
1516    sccnupdate(sc_console);
1517#endif
1518
1519    scterm(sc_console_unit, SC_KERNEL_CONSOLE);
1520    sc_console_unit = -1;
1521    sc_console = NULL;
1522}
1523
1524static void
1525sc_cnputc(struct consdev *cd, int c)
1526{
1527    u_char buf[1];
1528    scr_stat *scp = sc_console;
1529#ifndef SC_NO_HISTORY
1530#if 0
1531    struct tty *tp;
1532#endif
1533#endif /* !SC_NO_HISTORY */
1534    int s;
1535
1536    /* assert(sc_console != NULL) */
1537
1538#ifndef SC_NO_HISTORY
1539    if (scp == scp->sc->cur_scp && scp->status & SLKED) {
1540	scp->status &= ~SLKED;
1541	update_kbd_state(scp, scp->status, SLKED);
1542	if (scp->status & BUFFER_SAVED) {
1543	    if (!sc_hist_restore(scp))
1544		sc_remove_cutmarking(scp);
1545	    scp->status &= ~BUFFER_SAVED;
1546	    scp->status |= CURSOR_ENABLED;
1547	    sc_draw_cursor_image(scp);
1548	}
1549#if 0
1550	/*
1551	 * XXX: Now that TTY's have their own locks, we cannot process
1552	 * any data after disabling scroll lock. cnputs already holds a
1553	 * spinlock.
1554	 */
1555	tp = SC_DEV(scp->sc, scp->index);
1556	tty_lock(tp);
1557	if (tty_opened(tp))
1558	    sctty_outwakeup(tp);
1559	tty_unlock(tp);
1560#endif
1561    }
1562#endif /* !SC_NO_HISTORY */
1563
1564    buf[0] = c;
1565    sc_puts(scp, buf, 1, 1);
1566
1567    s = spltty();	/* block sckbdevent and scrn_timer */
1568    sccnupdate(scp);
1569    splx(s);
1570}
1571
1572static int
1573sc_cngetc(struct consdev *cd)
1574{
1575    static struct fkeytab fkey;
1576    static int fkeycp;
1577    scr_stat *scp;
1578    const u_char *p;
1579    int cur_mode;
1580    int s = spltty();	/* block sckbdevent and scrn_timer while we poll */
1581    int c;
1582
1583    /* assert(sc_console != NULL) */
1584
1585    /*
1586     * Stop the screen saver and update the screen if necessary.
1587     * What if we have been running in the screen saver code... XXX
1588     */
1589    sc_touch_scrn_saver();
1590    scp = sc_console->sc->cur_scp;	/* XXX */
1591    sccnupdate(scp);
1592
1593    if (fkeycp < fkey.len) {
1594	splx(s);
1595	return fkey.str[fkeycp++];
1596    }
1597
1598    if (scp->sc->kbd == NULL) {
1599	splx(s);
1600	return -1;
1601    }
1602
1603    /*
1604     * Make sure the keyboard is accessible even when the kbd device
1605     * driver is disabled.
1606     */
1607    kbdd_enable(scp->sc->kbd);
1608
1609    /* we shall always use the keyboard in the XLATE mode here */
1610    cur_mode = scp->kbd_mode;
1611    scp->kbd_mode = K_XLATE;
1612    kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1613
1614    kbdd_poll(scp->sc->kbd, TRUE);
1615    c = scgetc(scp->sc, SCGETC_CN | SCGETC_NONBLOCK);
1616    kbdd_poll(scp->sc->kbd, FALSE);
1617
1618    scp->kbd_mode = cur_mode;
1619    kbdd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1620    kbdd_disable(scp->sc->kbd);
1621    splx(s);
1622
1623    switch (KEYFLAGS(c)) {
1624    case 0:	/* normal char */
1625	return KEYCHAR(c);
1626    case FKEY:	/* function key */
1627	p = (*scp->tsw->te_fkeystr)(scp, c);
1628	if (p != NULL) {
1629	    fkey.len = strlen(p);
1630	    bcopy(p, fkey.str, fkey.len);
1631	    fkeycp = 1;
1632	    return fkey.str[0];
1633	}
1634	p = kbdd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
1635	fkey.len = fkeycp;
1636	if ((p != NULL) && (fkey.len > 0)) {
1637	    bcopy(p, fkey.str, fkey.len);
1638	    fkeycp = 1;
1639	    return fkey.str[0];
1640	}
1641	return c;	/* XXX */
1642    case NOKEY:
1643    case ERRKEY:
1644    default:
1645	return -1;
1646    }
1647    /* NOT REACHED */
1648}
1649
1650static void
1651sccnupdate(scr_stat *scp)
1652{
1653    /* this is a cut-down version of scrn_timer()... */
1654
1655    if (scp->sc->font_loading_in_progress)
1656	return;
1657
1658    if (debugger > 0 || panicstr || shutdown_in_progress) {
1659	sc_touch_scrn_saver();
1660    } else if (scp != scp->sc->cur_scp) {
1661	return;
1662    }
1663
1664    if (!run_scrn_saver)
1665	scp->sc->flags &= ~SC_SCRN_IDLE;
1666#ifdef DEV_SPLASH
1667    if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
1668	if (scp->sc->flags & SC_SCRN_BLANKED)
1669            stop_scrn_saver(scp->sc, current_saver);
1670#endif
1671
1672    if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress
1673	|| scp->sc->switch_in_progress)
1674	return;
1675    /*
1676     * FIXME: unlike scrn_timer(), we call scrn_update() from here even
1677     * when write_in_progress is non-zero.  XXX
1678     */
1679
1680    if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
1681	scrn_update(scp, TRUE);
1682}
1683
1684static void
1685scrn_timer(void *arg)
1686{
1687#ifndef PC98
1688    static int kbd_interval = 0;
1689#endif
1690    struct timeval tv;
1691    sc_softc_t *sc;
1692    scr_stat *scp;
1693    int again;
1694    int s;
1695
1696    again = (arg != NULL);
1697    if (arg != NULL)
1698	sc = (sc_softc_t *)arg;
1699    else if (sc_console != NULL)
1700	sc = sc_console->sc;
1701    else
1702	return;
1703
1704    /* don't do anything when we are performing some I/O operations */
1705    if (sc->font_loading_in_progress) {
1706	if (again)
1707	    timeout(scrn_timer, sc, hz / 10);
1708	return;
1709    }
1710    s = spltty();
1711
1712#ifndef PC98
1713    if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
1714	/* try to allocate a keyboard automatically */
1715	if (++kbd_interval >= 25) {
1716	    sc->keyboard = sc_allocate_keyboard(sc, -1);
1717	    if (sc->keyboard >= 0) {
1718		sc->kbd = kbd_get_keyboard(sc->keyboard);
1719		kbdd_ioctl(sc->kbd, KDSKBMODE,
1720			  (caddr_t)&sc->cur_scp->kbd_mode);
1721		update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1722				 LOCK_MASK);
1723	    }
1724	    kbd_interval = 0;
1725	}
1726    }
1727#endif /* PC98 */
1728
1729    /* find the vty to update */
1730    scp = sc->cur_scp;
1731
1732    /* should we stop the screen saver? */
1733    getmicrouptime(&tv);
1734    if (debugger > 0 || panicstr || shutdown_in_progress)
1735	sc_touch_scrn_saver();
1736    if (run_scrn_saver) {
1737	if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time)
1738	    sc->flags |= SC_SCRN_IDLE;
1739	else
1740	    sc->flags &= ~SC_SCRN_IDLE;
1741    } else {
1742	sc->scrn_time_stamp = tv.tv_sec;
1743	sc->flags &= ~SC_SCRN_IDLE;
1744	if (scrn_blank_time > 0)
1745	    run_scrn_saver = TRUE;
1746    }
1747#ifdef DEV_SPLASH
1748    if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
1749	if (sc->flags & SC_SCRN_BLANKED)
1750            stop_scrn_saver(sc, current_saver);
1751#endif
1752
1753    /* should we just return ? */
1754    if (sc->blink_in_progress || sc->switch_in_progress
1755	|| sc->write_in_progress) {
1756	if (again)
1757	    timeout(scrn_timer, sc, hz / 10);
1758	splx(s);
1759	return;
1760    }
1761
1762    /* Update the screen */
1763    scp = sc->cur_scp;		/* cur_scp may have changed... */
1764    if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1765	scrn_update(scp, TRUE);
1766
1767#ifdef DEV_SPLASH
1768    /* should we activate the screen saver? */
1769    if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
1770	if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
1771	    (*current_saver)(sc, TRUE);
1772#endif
1773
1774    if (again)
1775	timeout(scrn_timer, sc, hz / 25);
1776    splx(s);
1777}
1778
1779static int
1780and_region(int *s1, int *e1, int s2, int e2)
1781{
1782    if (*e1 < s2 || e2 < *s1)
1783	return FALSE;
1784    *s1 = imax(*s1, s2);
1785    *e1 = imin(*e1, e2);
1786    return TRUE;
1787}
1788
1789static void
1790scrn_update(scr_stat *scp, int show_cursor)
1791{
1792    int start;
1793    int end;
1794    int s;
1795    int e;
1796
1797    /* assert(scp == scp->sc->cur_scp) */
1798
1799    SC_VIDEO_LOCK(scp->sc);
1800
1801#ifndef SC_NO_CUTPASTE
1802    /* remove the previous mouse pointer image if necessary */
1803    if (scp->status & MOUSE_VISIBLE) {
1804	s = scp->mouse_pos;
1805	e = scp->mouse_pos + scp->xsize + 1;
1806	if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN))
1807	    || and_region(&s, &e, scp->start, scp->end)
1808	    || ((scp->status & CURSOR_ENABLED) &&
1809		(scp->cursor_pos != scp->cursor_oldpos) &&
1810		(and_region(&s, &e, scp->cursor_pos, scp->cursor_pos)
1811		 || and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos)))) {
1812	    sc_remove_mouse_image(scp);
1813	    if (scp->end >= scp->xsize*scp->ysize)
1814		scp->end = scp->xsize*scp->ysize - 1;
1815	}
1816    }
1817#endif /* !SC_NO_CUTPASTE */
1818
1819#if 1
1820    /* debug: XXX */
1821    if (scp->end >= scp->xsize*scp->ysize) {
1822	printf("scrn_update(): scp->end %d > size_of_screen!!\n", scp->end);
1823	scp->end = scp->xsize*scp->ysize - 1;
1824    }
1825    if (scp->start < 0) {
1826	printf("scrn_update(): scp->start %d < 0\n", scp->start);
1827	scp->start = 0;
1828    }
1829#endif
1830
1831    /* update screen image */
1832    if (scp->start <= scp->end)  {
1833	if (scp->mouse_cut_end >= 0) {
1834	    /* there is a marked region for cut & paste */
1835	    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
1836		start = scp->mouse_cut_start;
1837		end = scp->mouse_cut_end;
1838	    } else {
1839		start = scp->mouse_cut_end;
1840		end = scp->mouse_cut_start - 1;
1841	    }
1842	    s = start;
1843	    e = end;
1844	    /* does the cut-mark region overlap with the update region? */
1845	    if (and_region(&s, &e, scp->start, scp->end)) {
1846		(*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
1847		s = 0;
1848		e = start - 1;
1849		if (and_region(&s, &e, scp->start, scp->end))
1850		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
1851		s = end + 1;
1852		e = scp->xsize*scp->ysize - 1;
1853		if (and_region(&s, &e, scp->start, scp->end))
1854		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
1855	    } else {
1856		(*scp->rndr->draw)(scp, scp->start,
1857				   scp->end - scp->start + 1, FALSE);
1858	    }
1859	} else {
1860	    (*scp->rndr->draw)(scp, scp->start,
1861			       scp->end - scp->start + 1, FALSE);
1862	}
1863    }
1864
1865    /* we are not to show the cursor and the mouse pointer... */
1866    if (!show_cursor) {
1867        scp->end = 0;
1868        scp->start = scp->xsize*scp->ysize - 1;
1869	SC_VIDEO_UNLOCK(scp->sc);
1870	return;
1871    }
1872
1873    /* update cursor image */
1874    if (scp->status & CURSOR_ENABLED) {
1875	s = scp->start;
1876	e = scp->end;
1877        /* did cursor move since last time ? */
1878        if (scp->cursor_pos != scp->cursor_oldpos) {
1879            /* do we need to remove old cursor image ? */
1880            if (!and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
1881                sc_remove_cursor_image(scp);
1882            sc_draw_cursor_image(scp);
1883        } else {
1884            if (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos))
1885		/* cursor didn't move, but has been overwritten */
1886		sc_draw_cursor_image(scp);
1887	    else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
1888		/* if it's a blinking cursor, update it */
1889		(*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
1890					   sc_inside_cutmark(scp,
1891					       scp->cursor_pos));
1892        }
1893    }
1894
1895#ifndef SC_NO_CUTPASTE
1896    /* update "pseudo" mouse pointer image */
1897    if (scp->sc->flags & SC_MOUSE_ENABLED) {
1898	if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
1899	    scp->status &= ~MOUSE_MOVED;
1900	    sc_draw_mouse_image(scp);
1901	}
1902    }
1903#endif /* SC_NO_CUTPASTE */
1904
1905    scp->end = 0;
1906    scp->start = scp->xsize*scp->ysize - 1;
1907
1908    SC_VIDEO_UNLOCK(scp->sc);
1909}
1910
1911#ifdef DEV_SPLASH
1912static int
1913scsplash_callback(int event, void *arg)
1914{
1915    sc_softc_t *sc;
1916    int error;
1917
1918    sc = (sc_softc_t *)arg;
1919
1920    switch (event) {
1921    case SPLASH_INIT:
1922	if (add_scrn_saver(scsplash_saver) == 0) {
1923	    sc->flags &= ~SC_SAVER_FAILED;
1924	    run_scrn_saver = TRUE;
1925	    if (cold && !(boothowto & RB_VERBOSE)) {
1926		scsplash_stick(TRUE);
1927		(*current_saver)(sc, TRUE);
1928	    }
1929	}
1930	return 0;
1931
1932    case SPLASH_TERM:
1933	if (current_saver == scsplash_saver) {
1934	    scsplash_stick(FALSE);
1935	    error = remove_scrn_saver(scsplash_saver);
1936	    if (error)
1937		return error;
1938	}
1939	return 0;
1940
1941    default:
1942	return EINVAL;
1943    }
1944}
1945
1946static void
1947scsplash_saver(sc_softc_t *sc, int show)
1948{
1949    static int busy = FALSE;
1950    scr_stat *scp;
1951
1952    if (busy)
1953	return;
1954    busy = TRUE;
1955
1956    scp = sc->cur_scp;
1957    if (show) {
1958	if (!(sc->flags & SC_SAVER_FAILED)) {
1959	    if (!(sc->flags & SC_SCRN_BLANKED))
1960		set_scrn_saver_mode(scp, -1, NULL, 0);
1961	    switch (splash(sc->adp, TRUE)) {
1962	    case 0:		/* succeeded */
1963		break;
1964	    case EAGAIN:	/* try later */
1965		restore_scrn_saver_mode(scp, FALSE);
1966		sc_touch_scrn_saver();		/* XXX */
1967		break;
1968	    default:
1969		sc->flags |= SC_SAVER_FAILED;
1970		scsplash_stick(FALSE);
1971		restore_scrn_saver_mode(scp, TRUE);
1972		printf("scsplash_saver(): failed to put up the image\n");
1973		break;
1974	    }
1975	}
1976    } else if (!sticky_splash) {
1977	if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0))
1978	    restore_scrn_saver_mode(scp, TRUE);
1979    }
1980    busy = FALSE;
1981}
1982
1983static int
1984add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
1985{
1986#if 0
1987    int error;
1988
1989    if (current_saver != none_saver) {
1990	error = remove_scrn_saver(current_saver);
1991	if (error)
1992	    return error;
1993    }
1994#endif
1995    if (current_saver != none_saver)
1996	return EBUSY;
1997
1998    run_scrn_saver = FALSE;
1999    saver_mode = CONS_LKM_SAVER;
2000    current_saver = this_saver;
2001    return 0;
2002}
2003
2004static int
2005remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
2006{
2007    if (current_saver != this_saver)
2008	return EINVAL;
2009
2010#if 0
2011    /*
2012     * In order to prevent `current_saver' from being called by
2013     * the timeout routine `scrn_timer()' while we manipulate
2014     * the saver list, we shall set `current_saver' to `none_saver'
2015     * before stopping the current saver, rather than blocking by `splXX()'.
2016     */
2017    current_saver = none_saver;
2018    if (scrn_blanked)
2019        stop_scrn_saver(this_saver);
2020#endif
2021
2022    /* unblank all blanked screens */
2023    wait_scrn_saver_stop(NULL);
2024    if (scrn_blanked)
2025	return EBUSY;
2026
2027    current_saver = none_saver;
2028    return 0;
2029}
2030
2031static int
2032set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
2033{
2034    int s;
2035
2036    /* assert(scp == scp->sc->cur_scp) */
2037    s = spltty();
2038    if (!ISGRAPHSC(scp))
2039	sc_remove_cursor_image(scp);
2040    scp->splash_save_mode = scp->mode;
2041    scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
2042    scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
2043    scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
2044    scp->sc->flags |= SC_SCRN_BLANKED;
2045    ++scrn_blanked;
2046    splx(s);
2047    if (mode < 0)
2048	return 0;
2049    scp->mode = mode;
2050    if (set_mode(scp) == 0) {
2051	if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
2052	    scp->status |= GRAPHICS_MODE;
2053#ifndef SC_NO_PALETTE_LOADING
2054	if (pal != NULL)
2055	    vidd_load_palette(scp->sc->adp, pal);
2056#endif
2057	sc_set_border(scp, border);
2058	return 0;
2059    } else {
2060	s = spltty();
2061	scp->mode = scp->splash_save_mode;
2062	scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2063	scp->status |= scp->splash_save_status;
2064	splx(s);
2065	return 1;
2066    }
2067}
2068
2069static int
2070restore_scrn_saver_mode(scr_stat *scp, int changemode)
2071{
2072    int mode;
2073    int status;
2074    int s;
2075
2076    /* assert(scp == scp->sc->cur_scp) */
2077    s = spltty();
2078    mode = scp->mode;
2079    status = scp->status;
2080    scp->mode = scp->splash_save_mode;
2081    scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2082    scp->status |= scp->splash_save_status;
2083    scp->sc->flags &= ~SC_SCRN_BLANKED;
2084    if (!changemode) {
2085	if (!ISGRAPHSC(scp))
2086	    sc_draw_cursor_image(scp);
2087	--scrn_blanked;
2088	splx(s);
2089	return 0;
2090    }
2091    if (set_mode(scp) == 0) {
2092#ifndef SC_NO_PALETTE_LOADING
2093	vidd_load_palette(scp->sc->adp, scp->sc->palette);
2094#endif
2095	--scrn_blanked;
2096	splx(s);
2097	return 0;
2098    } else {
2099	scp->mode = mode;
2100	scp->status = status;
2101	splx(s);
2102	return 1;
2103    }
2104}
2105
2106static void
2107stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
2108{
2109    (*saver)(sc, FALSE);
2110    run_scrn_saver = FALSE;
2111    /* the screen saver may have chosen not to stop after all... */
2112    if (sc->flags & SC_SCRN_BLANKED)
2113	return;
2114
2115    mark_all(sc->cur_scp);
2116    if (sc->delayed_next_scr)
2117	sc_switch_scr(sc, sc->delayed_next_scr - 1);
2118    if (debugger == 0)
2119	wakeup(&scrn_blanked);
2120}
2121
2122static int
2123wait_scrn_saver_stop(sc_softc_t *sc)
2124{
2125    int error = 0;
2126
2127    while (scrn_blanked > 0) {
2128	run_scrn_saver = FALSE;
2129	if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
2130	    error = 0;
2131	    break;
2132	}
2133	error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
2134	if ((error != 0) && (error != ERESTART))
2135	    break;
2136    }
2137    run_scrn_saver = FALSE;
2138    return error;
2139}
2140#endif /* DEV_SPLASH */
2141
2142void
2143sc_touch_scrn_saver(void)
2144{
2145    scsplash_stick(FALSE);
2146    run_scrn_saver = FALSE;
2147}
2148
2149int
2150sc_switch_scr(sc_softc_t *sc, u_int next_scr)
2151{
2152    scr_stat *cur_scp;
2153    struct tty *tp;
2154    struct proc *p;
2155    int s;
2156
2157    DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
2158
2159    if (sc->cur_scp == NULL)
2160	return (0);
2161
2162    /* prevent switch if previously requested */
2163    if (sc->flags & SC_SCRN_VTYLOCK) {
2164	    sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
2165		sc->cur_scp->bell_duration);
2166	    return EPERM;
2167    }
2168
2169    /* delay switch if the screen is blanked or being updated */
2170    if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress
2171	|| sc->blink_in_progress) {
2172	sc->delayed_next_scr = next_scr + 1;
2173	sc_touch_scrn_saver();
2174	DPRINTF(5, ("switch delayed\n"));
2175	return 0;
2176    }
2177    sc->delayed_next_scr = 0;
2178
2179    s = spltty();
2180    cur_scp = sc->cur_scp;
2181
2182    /* we are in the middle of the vty switching process... */
2183    if (sc->switch_in_progress
2184	&& (cur_scp->smode.mode == VT_PROCESS)
2185	&& cur_scp->proc) {
2186	p = pfind(cur_scp->pid);
2187	if (cur_scp->proc != p) {
2188	    if (p)
2189		PROC_UNLOCK(p);
2190	    /*
2191	     * The controlling process has died!!.  Do some clean up.
2192	     * NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
2193	     * are not reset here yet; they will be cleared later.
2194	     */
2195	    DPRINTF(5, ("cur_scp controlling process %d died, ",
2196	       cur_scp->pid));
2197	    if (cur_scp->status & SWITCH_WAIT_REL) {
2198		/*
2199		 * Force the previous switch to finish, but return now
2200		 * with error.
2201		 */
2202		DPRINTF(5, ("reset WAIT_REL, "));
2203		finish_vt_rel(cur_scp, TRUE, &s);
2204		splx(s);
2205		DPRINTF(5, ("finishing previous switch\n"));
2206		return EINVAL;
2207	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2208		/* let's assume screen switch has been completed. */
2209		DPRINTF(5, ("reset WAIT_ACQ, "));
2210		finish_vt_acq(cur_scp);
2211	    } else {
2212		/*
2213	 	 * We are in between screen release and acquisition, and
2214		 * reached here via scgetc() or scrn_timer() which has
2215		 * interrupted exchange_scr(). Don't do anything stupid.
2216		 */
2217		DPRINTF(5, ("waiting nothing, "));
2218	    }
2219	} else {
2220	    if (p)
2221		PROC_UNLOCK(p);
2222	    /*
2223	     * The controlling process is alive, but not responding...
2224	     * It is either buggy or it may be just taking time.
2225	     * The following code is a gross kludge to cope with this
2226	     * problem for which there is no clean solution. XXX
2227	     */
2228	    if (cur_scp->status & SWITCH_WAIT_REL) {
2229		switch (sc->switch_in_progress++) {
2230		case 1:
2231		    break;
2232		case 2:
2233		    DPRINTF(5, ("sending relsig again, "));
2234		    signal_vt_rel(cur_scp);
2235		    break;
2236		case 3:
2237		    break;
2238		case 4:
2239		default:
2240		    /*
2241		     * Act as if the controlling program returned
2242		     * VT_FALSE.
2243		     */
2244		    DPRINTF(5, ("force reset WAIT_REL, "));
2245		    finish_vt_rel(cur_scp, FALSE, &s);
2246		    splx(s);
2247		    DPRINTF(5, ("act as if VT_FALSE was seen\n"));
2248		    return EINVAL;
2249		}
2250	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2251		switch (sc->switch_in_progress++) {
2252		case 1:
2253		    break;
2254		case 2:
2255		    DPRINTF(5, ("sending acqsig again, "));
2256		    signal_vt_acq(cur_scp);
2257		    break;
2258		case 3:
2259		    break;
2260		case 4:
2261		default:
2262		     /* clear the flag and finish the previous switch */
2263		    DPRINTF(5, ("force reset WAIT_ACQ, "));
2264		    finish_vt_acq(cur_scp);
2265		    break;
2266		}
2267	    }
2268	}
2269    }
2270
2271    /*
2272     * Return error if an invalid argument is given, or vty switch
2273     * is still in progress.
2274     */
2275    if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys)
2276	|| sc->switch_in_progress) {
2277	splx(s);
2278	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2279	DPRINTF(5, ("error 1\n"));
2280	return EINVAL;
2281    }
2282
2283    /*
2284     * Don't allow switching away from the graphics mode vty
2285     * if the switch mode is VT_AUTO, unless the next vty is the same
2286     * as the current or the current vty has been closed (but showing).
2287     */
2288    tp = SC_DEV(sc, cur_scp->index);
2289    if ((cur_scp->index != next_scr)
2290	&& tty_opened(tp)
2291	&& (cur_scp->smode.mode == VT_AUTO)
2292	&& ISGRAPHSC(cur_scp)) {
2293	splx(s);
2294	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2295	DPRINTF(5, ("error, graphics mode\n"));
2296	return EINVAL;
2297    }
2298
2299    /*
2300     * Is the wanted vty open? Don't allow switching to a closed vty.
2301     * If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
2302     * Note that we always allow the user to switch to the kernel
2303     * console even if it is closed.
2304     */
2305    if ((sc_console == NULL) || (next_scr != sc_console->index)) {
2306	tp = SC_DEV(sc, next_scr);
2307	if (!tty_opened(tp)) {
2308	    splx(s);
2309	    sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2310	    DPRINTF(5, ("error 2, requested vty isn't open!\n"));
2311	    return EINVAL;
2312	}
2313	if ((debugger > 0) && (SC_STAT(tp)->smode.mode == VT_PROCESS)) {
2314	    splx(s);
2315	    DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n"));
2316	    return EINVAL;
2317	}
2318    }
2319
2320    /* this is the start of vty switching process... */
2321    ++sc->switch_in_progress;
2322    sc->old_scp = cur_scp;
2323    sc->new_scp = sc_get_stat(SC_DEV(sc, next_scr));
2324    if (sc->new_scp == sc->old_scp) {
2325	sc->switch_in_progress = 0;
2326	/*
2327	 * XXX wakeup() locks the scheduler lock which will hang if
2328	 * the lock is in an in-between state, e.g., when we stop at
2329	 * a breakpoint at fork_exit.  It has always been wrong to call
2330	 * wakeup() when the debugger is active.  In RELENG_4, wakeup()
2331	 * is supposed to be locked by splhigh(), but the debugger may
2332	 * be invoked at splhigh().
2333	 */
2334	if (debugger == 0)
2335	    wakeup(VTY_WCHAN(sc,next_scr));
2336	splx(s);
2337	DPRINTF(5, ("switch done (new == old)\n"));
2338	return 0;
2339    }
2340
2341    /* has controlling process died? */
2342    vt_proc_alive(sc->old_scp);
2343    vt_proc_alive(sc->new_scp);
2344
2345    /* wait for the controlling process to release the screen, if necessary */
2346    if (signal_vt_rel(sc->old_scp)) {
2347	splx(s);
2348	return 0;
2349    }
2350
2351    /* go set up the new vty screen */
2352    splx(s);
2353    exchange_scr(sc);
2354    s = spltty();
2355
2356    /* wake up processes waiting for this vty */
2357    if (debugger == 0)
2358	wakeup(VTY_WCHAN(sc,next_scr));
2359
2360    /* wait for the controlling process to acknowledge, if necessary */
2361    if (signal_vt_acq(sc->cur_scp)) {
2362	splx(s);
2363	return 0;
2364    }
2365
2366    sc->switch_in_progress = 0;
2367    if (sc->unit == sc_console_unit)
2368	cnavailable(sc_consptr,  TRUE);
2369    splx(s);
2370    DPRINTF(5, ("switch done\n"));
2371
2372    return 0;
2373}
2374
2375static int
2376do_switch_scr(sc_softc_t *sc, int s)
2377{
2378    vt_proc_alive(sc->new_scp);
2379
2380    splx(s);
2381    exchange_scr(sc);
2382    s = spltty();
2383    /* sc->cur_scp == sc->new_scp */
2384    wakeup(VTY_WCHAN(sc,sc->cur_scp->index));
2385
2386    /* wait for the controlling process to acknowledge, if necessary */
2387    if (!signal_vt_acq(sc->cur_scp)) {
2388	sc->switch_in_progress = 0;
2389	if (sc->unit == sc_console_unit)
2390	    cnavailable(sc_consptr,  TRUE);
2391    }
2392
2393    return s;
2394}
2395
2396static int
2397vt_proc_alive(scr_stat *scp)
2398{
2399    struct proc *p;
2400
2401    if (scp->proc) {
2402	if ((p = pfind(scp->pid)) != NULL)
2403	    PROC_UNLOCK(p);
2404	if (scp->proc == p)
2405	    return TRUE;
2406	scp->proc = NULL;
2407	scp->smode.mode = VT_AUTO;
2408	DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
2409    }
2410    return FALSE;
2411}
2412
2413static int
2414signal_vt_rel(scr_stat *scp)
2415{
2416    if (scp->smode.mode != VT_PROCESS)
2417	return FALSE;
2418    scp->status |= SWITCH_WAIT_REL;
2419    PROC_LOCK(scp->proc);
2420    psignal(scp->proc, scp->smode.relsig);
2421    PROC_UNLOCK(scp->proc);
2422    DPRINTF(5, ("sending relsig to %d\n", scp->pid));
2423    return TRUE;
2424}
2425
2426static int
2427signal_vt_acq(scr_stat *scp)
2428{
2429    if (scp->smode.mode != VT_PROCESS)
2430	return FALSE;
2431    if (scp->sc->unit == sc_console_unit)
2432	cnavailable(sc_consptr,  FALSE);
2433    scp->status |= SWITCH_WAIT_ACQ;
2434    PROC_LOCK(scp->proc);
2435    psignal(scp->proc, scp->smode.acqsig);
2436    PROC_UNLOCK(scp->proc);
2437    DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
2438    return TRUE;
2439}
2440
2441static int
2442finish_vt_rel(scr_stat *scp, int release, int *s)
2443{
2444    if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
2445	scp->status &= ~SWITCH_WAIT_REL;
2446	if (release)
2447	    *s = do_switch_scr(scp->sc, *s);
2448	else
2449	    scp->sc->switch_in_progress = 0;
2450	return 0;
2451    }
2452    return EINVAL;
2453}
2454
2455static int
2456finish_vt_acq(scr_stat *scp)
2457{
2458    if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
2459	scp->status &= ~SWITCH_WAIT_ACQ;
2460	scp->sc->switch_in_progress = 0;
2461	return 0;
2462    }
2463    return EINVAL;
2464}
2465
2466static void
2467exchange_scr(sc_softc_t *sc)
2468{
2469    scr_stat *scp;
2470
2471    /* save the current state of video and keyboard */
2472    sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
2473    if (!ISGRAPHSC(sc->old_scp))
2474	sc_remove_cursor_image(sc->old_scp);
2475    if (sc->old_scp->kbd_mode == K_XLATE)
2476	save_kbd_state(sc->old_scp);
2477
2478    /* set up the video for the new screen */
2479    scp = sc->cur_scp = sc->new_scp;
2480#ifdef PC98
2481    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp) || ISUNKNOWNSC(sc->new_scp))
2482#else
2483    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
2484#endif
2485	set_mode(scp);
2486#ifndef __sparc64__
2487    else
2488	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2489		    (void *)sc->adp->va_window, FALSE);
2490#endif
2491    scp->status |= MOUSE_HIDDEN;
2492    sc_move_cursor(scp, scp->xpos, scp->ypos);
2493    if (!ISGRAPHSC(scp))
2494	sc_set_cursor_image(scp);
2495#ifndef SC_NO_PALETTE_LOADING
2496    if (ISGRAPHSC(sc->old_scp))
2497	vidd_load_palette(sc->adp, sc->palette);
2498#endif
2499    sc_set_border(scp, scp->border);
2500
2501    /* set up the keyboard for the new screen */
2502    if (sc->old_scp->kbd_mode != scp->kbd_mode)
2503	kbdd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
2504    update_kbd_state(scp, scp->status, LOCK_MASK);
2505
2506    mark_all(scp);
2507}
2508
2509void
2510sc_puts(scr_stat *scp, u_char *buf, int len, int kernel)
2511{
2512    int need_unlock = 0;
2513
2514#ifdef DEV_SPLASH
2515    /* make screensaver happy */
2516    if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
2517	run_scrn_saver = FALSE;
2518#endif
2519
2520    if (scp->tsw) {
2521	if (!kdb_active && !mtx_owned(&scp->scr_lock)) {
2522		need_unlock = 1;
2523		mtx_lock_spin(&scp->scr_lock);
2524	}
2525	(*scp->tsw->te_puts)(scp, buf, len, kernel);
2526	if (need_unlock)
2527		mtx_unlock_spin(&scp->scr_lock);
2528    }
2529
2530    if (scp->sc->delayed_next_scr)
2531	sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
2532}
2533
2534void
2535sc_draw_cursor_image(scr_stat *scp)
2536{
2537    /* assert(scp == scp->sc->cur_scp); */
2538    SC_VIDEO_LOCK(scp->sc);
2539    (*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
2540			      scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
2541			      sc_inside_cutmark(scp, scp->cursor_pos));
2542    scp->cursor_oldpos = scp->cursor_pos;
2543    SC_VIDEO_UNLOCK(scp->sc);
2544}
2545
2546void
2547sc_remove_cursor_image(scr_stat *scp)
2548{
2549    /* assert(scp == scp->sc->cur_scp); */
2550    SC_VIDEO_LOCK(scp->sc);
2551    (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
2552			      scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
2553			      sc_inside_cutmark(scp, scp->cursor_oldpos));
2554    SC_VIDEO_UNLOCK(scp->sc);
2555}
2556
2557static void
2558update_cursor_image(scr_stat *scp)
2559{
2560    /* assert(scp == scp->sc->cur_scp); */
2561    sc_remove_cursor_image(scp);
2562    sc_set_cursor_image(scp);
2563    sc_draw_cursor_image(scp);
2564}
2565
2566void
2567sc_set_cursor_image(scr_stat *scp)
2568{
2569    scp->curs_attr.flags = scp->curr_curs_attr.flags;
2570    if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
2571	/* hidden cursor is internally represented as zero-height underline */
2572	scp->curs_attr.flags = CONS_CHAR_CURSOR;
2573	scp->curs_attr.base = scp->curs_attr.height = 0;
2574    } else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
2575	scp->curs_attr.base = imin(scp->curr_curs_attr.base,
2576				  scp->font_size - 1);
2577	scp->curs_attr.height = imin(scp->curr_curs_attr.height,
2578				    scp->font_size - scp->curs_attr.base);
2579    } else {	/* block cursor */
2580	scp->curs_attr.base = 0;
2581	scp->curs_attr.height = scp->font_size;
2582    }
2583
2584    /* assert(scp == scp->sc->cur_scp); */
2585    SC_VIDEO_LOCK(scp->sc);
2586    (*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
2587			     scp->curs_attr.flags & CONS_BLINK_CURSOR);
2588    SC_VIDEO_UNLOCK(scp->sc);
2589}
2590
2591static void
2592change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2593{
2594    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
2595	sc_remove_cursor_image(scp);
2596
2597    if (base >= 0)
2598	scp->curr_curs_attr.base = base;
2599    if (height >= 0)
2600	scp->curr_curs_attr.height = height;
2601    if (flags & CONS_RESET_CURSOR)
2602	scp->curr_curs_attr = scp->dflt_curs_attr;
2603    else
2604	scp->curr_curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2605
2606    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
2607	sc_set_cursor_image(scp);
2608	sc_draw_cursor_image(scp);
2609    }
2610}
2611
2612void
2613sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2614{
2615    sc_softc_t *sc;
2616    struct tty *tp;
2617    int s;
2618    int i;
2619
2620    s = spltty();
2621    if ((flags != -1) && (flags & CONS_LOCAL_CURSOR)) {
2622	/* local (per vty) change */
2623	change_cursor_shape(scp, flags, base, height);
2624	splx(s);
2625	return;
2626    }
2627
2628    /* global change */
2629    sc = scp->sc;
2630    if (base >= 0)
2631	sc->curs_attr.base = base;
2632    if (height >= 0)
2633	sc->curs_attr.height = height;
2634    if (flags != -1) {
2635	if (flags & CONS_RESET_CURSOR)
2636	    sc->curs_attr = sc->dflt_curs_attr;
2637	else
2638	    sc->curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2639    }
2640
2641    for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
2642	if ((tp = SC_DEV(sc, i)) == NULL)
2643	    continue;
2644	if ((scp = sc_get_stat(tp)) == NULL)
2645	    continue;
2646	scp->dflt_curs_attr = sc->curs_attr;
2647	change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
2648    }
2649    splx(s);
2650}
2651
2652static void
2653scinit(int unit, int flags)
2654{
2655
2656    /*
2657     * When syscons is being initialized as the kernel console, malloc()
2658     * is not yet functional, because various kernel structures has not been
2659     * fully initialized yet.  Therefore, we need to declare the following
2660     * static buffers for the console.  This is less than ideal,
2661     * but is necessry evil for the time being.  XXX
2662     */
2663#ifdef PC98
2664    static u_short sc_buffer[ROW*COL*2];/* XXX */
2665#else
2666    static u_short sc_buffer[ROW*COL];	/* XXX */
2667#endif
2668#ifndef SC_NO_FONT_LOADING
2669    static u_char font_8[256*8];
2670    static u_char font_14[256*14];
2671    static u_char font_16[256*16];
2672#endif
2673
2674    sc_softc_t *sc;
2675    scr_stat *scp;
2676    video_adapter_t *adp;
2677    int col;
2678    int row;
2679    int i;
2680
2681    /* one time initialization */
2682    if (init_done == COLD)
2683	sc_get_bios_values(&bios_value);
2684    init_done = WARM;
2685
2686    /*
2687     * Allocate resources.  Even if we are being called for the second
2688     * time, we must allocate them again, because they might have
2689     * disappeared...
2690     */
2691    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2692    if ((sc->flags & SC_INIT_DONE) == 0)
2693	SC_VIDEO_LOCKINIT(sc);
2694
2695    adp = NULL;
2696    if (sc->adapter >= 0) {
2697	vid_release(sc->adp, (void *)&sc->adapter);
2698	adp = sc->adp;
2699	sc->adp = NULL;
2700    }
2701    if (sc->keyboard >= 0) {
2702	DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard));
2703	i = kbd_release(sc->kbd, (void *)&sc->keyboard);
2704	DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
2705	if (sc->kbd != NULL) {
2706	    DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
2707		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2708	}
2709	sc->kbd = NULL;
2710    }
2711    sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
2712    sc->adp = vid_get_adapter(sc->adapter);
2713    /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
2714
2715    sc->keyboard = sc_allocate_keyboard(sc, unit);
2716    DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard));
2717
2718    sc->kbd = kbd_get_keyboard(sc->keyboard);
2719    if (sc->kbd != NULL) {
2720	DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n",
2721		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2722    }
2723
2724    if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
2725
2726	sc->initial_mode = sc->adp->va_initial_mode;
2727
2728#ifndef SC_NO_FONT_LOADING
2729	if (flags & SC_KERNEL_CONSOLE) {
2730	    sc->font_8 = font_8;
2731	    sc->font_14 = font_14;
2732	    sc->font_16 = font_16;
2733	} else if (sc->font_8 == NULL) {
2734	    /* assert(sc_malloc) */
2735	    sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
2736	    sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
2737	    sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
2738	}
2739#endif
2740
2741	/* extract the hardware cursor location and hide the cursor for now */
2742	vidd_read_hw_cursor(sc->adp, &col, &row);
2743	vidd_set_hw_cursor(sc->adp, -1, -1);
2744
2745	/* set up the first console */
2746	sc->first_vty = unit*MAXCONS;
2747	sc->vtys = MAXCONS;		/* XXX: should be configurable */
2748	if (flags & SC_KERNEL_CONSOLE) {
2749	    /*
2750	     * Set up devs structure but don't use it yet, calling make_dev()
2751	     * might panic kernel.  Wait for sc_attach_unit() to actually
2752	     * create the devices.
2753	     */
2754	    sc->dev = main_devs;
2755	    scp = &main_console;
2756	    init_scp(sc, sc->first_vty, scp);
2757	    sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize,
2758			(void *)sc_buffer, FALSE);
2759
2760	    /* move cursors to the initial positions */
2761	    if (col >= scp->xsize)
2762		col = 0;
2763	    if (row >= scp->ysize)
2764		row = scp->ysize - 1;
2765	    scp->xpos = col;
2766	    scp->ypos = row;
2767	    scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col;
2768
2769	    if (sc_init_emulator(scp, SC_DFLT_TERM))
2770		sc_init_emulator(scp, "*");
2771	    (*scp->tsw->te_default_attr)(scp,
2772					 user_default.std_color,
2773					 user_default.rev_color);
2774	} else {
2775	    /* assert(sc_malloc) */
2776	    sc->dev = malloc(sizeof(struct tty *)*sc->vtys, M_DEVBUF,
2777	        M_WAITOK|M_ZERO);
2778	    sc->dev[0] = sc_alloc_tty(0, unit * MAXCONS);
2779	    scp = alloc_scp(sc, sc->first_vty);
2780	    SC_STAT(sc->dev[0]) = scp;
2781	}
2782	sc->cur_scp = scp;
2783
2784#ifndef __sparc64__
2785	/* copy screen to temporary buffer */
2786	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2787		    (void *)scp->sc->adp->va_window, FALSE);
2788	if (ISTEXTSC(scp))
2789	    sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize);
2790#endif
2791
2792	if (bios_value.cursor_end < scp->font_size)
2793	    sc->dflt_curs_attr.base = scp->font_size -
2794					  bios_value.cursor_end - 1;
2795	else
2796	    sc->dflt_curs_attr.base = 0;
2797	i = bios_value.cursor_end - bios_value.cursor_start + 1;
2798	sc->dflt_curs_attr.height = imin(i, scp->font_size);
2799	sc->dflt_curs_attr.flags = 0;
2800	sc->curs_attr = sc->dflt_curs_attr;
2801	scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
2802
2803#ifndef SC_NO_SYSMOUSE
2804	sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2);
2805#endif
2806	if (!ISGRAPHSC(scp)) {
2807    	    sc_set_cursor_image(scp);
2808    	    sc_draw_cursor_image(scp);
2809	}
2810
2811	/* save font and palette */
2812#ifndef SC_NO_FONT_LOADING
2813	sc->fonts_loaded = 0;
2814	if (ISFONTAVAIL(sc->adp->va_flags)) {
2815#ifdef SC_DFLT_FONT
2816	    bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
2817	    bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
2818	    bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
2819	    sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
2820	    if (scp->font_size < 14) {
2821		sc_load_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2822	    } else if (scp->font_size >= 16) {
2823		sc_load_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2824	    } else {
2825		sc_load_font(scp, 0, 14, 8, sc->font_14, 0, 256);
2826	    }
2827#else /* !SC_DFLT_FONT */
2828	    if (scp->font_size < 14) {
2829		sc_save_font(scp, 0, 8, 8, sc->font_8, 0, 256);
2830		sc->fonts_loaded = FONT_8;
2831	    } else if (scp->font_size >= 16) {
2832		sc_save_font(scp, 0, 16, 8, sc->font_16, 0, 256);
2833		sc->fonts_loaded = FONT_16;
2834	    } else {
2835		sc_save_font(scp, 0, 14, 8, sc->font_14, 0, 256);
2836		sc->fonts_loaded = FONT_14;
2837	    }
2838#endif /* SC_DFLT_FONT */
2839	    /* FONT KLUDGE: always use the font page #0. XXX */
2840	    sc_show_font(scp, 0);
2841	}
2842#endif /* !SC_NO_FONT_LOADING */
2843
2844#ifndef SC_NO_PALETTE_LOADING
2845	vidd_save_palette(sc->adp, sc->palette);
2846#endif
2847
2848#ifdef DEV_SPLASH
2849	if (!(sc->flags & SC_SPLASH_SCRN)) {
2850	    /* we are ready to put up the splash image! */
2851	    splash_init(sc->adp, scsplash_callback, sc);
2852	    sc->flags |= SC_SPLASH_SCRN;
2853	}
2854#endif
2855    }
2856
2857    /* the rest is not necessary, if we have done it once */
2858    if (sc->flags & SC_INIT_DONE)
2859	return;
2860
2861    /* initialize mapscrn arrays to a one to one map */
2862    for (i = 0; i < sizeof(sc->scr_map); i++)
2863	sc->scr_map[i] = sc->scr_rmap[i] = i;
2864#ifdef PC98
2865    sc->scr_map[0x5c] = (u_char)0xfc;	/* for backslash */
2866#endif
2867
2868    sc->flags |= SC_INIT_DONE;
2869}
2870
2871static void
2872scterm(int unit, int flags)
2873{
2874    sc_softc_t *sc;
2875    scr_stat *scp;
2876
2877    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2878    if (sc == NULL)
2879	return;			/* shouldn't happen */
2880
2881#ifdef DEV_SPLASH
2882    /* this console is no longer available for the splash screen */
2883    if (sc->flags & SC_SPLASH_SCRN) {
2884	splash_term(sc->adp);
2885	sc->flags &= ~SC_SPLASH_SCRN;
2886    }
2887#endif
2888
2889#if 0 /* XXX */
2890    /* move the hardware cursor to the upper-left corner */
2891    vidd_set_hw_cursor(sc->adp, 0, 0);
2892#endif
2893
2894    /* release the keyboard and the video card */
2895    if (sc->keyboard >= 0)
2896	kbd_release(sc->kbd, &sc->keyboard);
2897    if (sc->adapter >= 0)
2898	vid_release(sc->adp, &sc->adapter);
2899
2900    /* stop the terminal emulator, if any */
2901    scp = sc_get_stat(sc->dev[0]);
2902    if (scp->tsw)
2903	(*scp->tsw->te_term)(scp, &scp->ts);
2904    if (scp->ts != NULL)
2905	free(scp->ts, M_DEVBUF);
2906    mtx_destroy(&scp->scr_lock);
2907
2908    /* clear the structure */
2909    if (!(flags & SC_KERNEL_CONSOLE)) {
2910	/* XXX: We need delete_dev() for this */
2911	free(sc->dev, M_DEVBUF);
2912#if 0
2913	/* XXX: We need a ttyunregister for this */
2914	free(sc->tty, M_DEVBUF);
2915#endif
2916#ifndef SC_NO_FONT_LOADING
2917	free(sc->font_8, M_DEVBUF);
2918	free(sc->font_14, M_DEVBUF);
2919	free(sc->font_16, M_DEVBUF);
2920#endif
2921	/* XXX vtb, history */
2922    }
2923    bzero(sc, sizeof(*sc));
2924    sc->keyboard = -1;
2925    sc->adapter = -1;
2926}
2927
2928static void
2929scshutdown(void *arg, int howto)
2930{
2931    /* assert(sc_console != NULL) */
2932
2933    sc_touch_scrn_saver();
2934    if (!cold && sc_console
2935	&& sc_console->sc->cur_scp->smode.mode == VT_AUTO
2936	&& sc_console->smode.mode == VT_AUTO)
2937	sc_switch_scr(sc_console->sc, sc_console->index);
2938    shutdown_in_progress = TRUE;
2939}
2940
2941int
2942sc_clean_up(scr_stat *scp)
2943{
2944#ifdef DEV_SPLASH
2945    int error;
2946#endif
2947
2948    if (scp->sc->flags & SC_SCRN_BLANKED) {
2949	sc_touch_scrn_saver();
2950#ifdef DEV_SPLASH
2951	if ((error = wait_scrn_saver_stop(scp->sc)))
2952	    return error;
2953#endif
2954    }
2955    scp->status |= MOUSE_HIDDEN;
2956    sc_remove_mouse_image(scp);
2957    sc_remove_cutmarking(scp);
2958    return 0;
2959}
2960
2961void
2962sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
2963{
2964    sc_vtb_t new;
2965    sc_vtb_t old;
2966
2967    old = scp->vtb;
2968    sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
2969    if (!discard && (old.vtb_flags & VTB_VALID)) {
2970	/* retain the current cursor position and buffer contants */
2971	scp->cursor_oldpos = scp->cursor_pos;
2972	/*
2973	 * This works only if the old buffer has the same size as or larger
2974	 * than the new one. XXX
2975	 */
2976	sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize);
2977	scp->vtb = new;
2978    } else {
2979	scp->vtb = new;
2980	sc_vtb_destroy(&old);
2981    }
2982
2983#ifndef SC_NO_SYSMOUSE
2984    /* move the mouse cursor at the center of the screen */
2985    sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
2986#endif
2987}
2988
2989static scr_stat
2990*alloc_scp(sc_softc_t *sc, int vty)
2991{
2992    scr_stat *scp;
2993
2994    /* assert(sc_malloc) */
2995
2996    scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
2997    init_scp(sc, vty, scp);
2998
2999    sc_alloc_scr_buffer(scp, TRUE, TRUE);
3000    if (sc_init_emulator(scp, SC_DFLT_TERM))
3001	sc_init_emulator(scp, "*");
3002
3003#ifndef SC_NO_CUTPASTE
3004    sc_alloc_cut_buffer(scp, TRUE);
3005#endif
3006
3007#ifndef SC_NO_HISTORY
3008    sc_alloc_history_buffer(scp, 0, 0, TRUE);
3009#endif
3010
3011    return scp;
3012}
3013
3014static void
3015init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
3016{
3017    video_info_t info;
3018
3019    bzero(scp, sizeof(*scp));
3020
3021    scp->index = vty;
3022    scp->sc = sc;
3023    scp->status = 0;
3024    scp->mode = sc->initial_mode;
3025    vidd_get_info(sc->adp, scp->mode, &info);
3026    if (info.vi_flags & V_INFO_GRAPHICS) {
3027	scp->status |= GRAPHICS_MODE;
3028	scp->xpixel = info.vi_width;
3029	scp->ypixel = info.vi_height;
3030	scp->xsize = info.vi_width/info.vi_cwidth;
3031	scp->ysize = info.vi_height/info.vi_cheight;
3032	scp->font_size = 0;
3033	scp->font = NULL;
3034    } else {
3035	scp->xsize = info.vi_width;
3036	scp->ysize = info.vi_height;
3037	scp->xpixel = scp->xsize*info.vi_cwidth;
3038	scp->ypixel = scp->ysize*info.vi_cheight;
3039    }
3040
3041	scp->font_size = info.vi_cheight;
3042	scp->font_width = info.vi_cwidth;
3043	if (info.vi_cheight < 14) {
3044#ifndef SC_NO_FONT_LOADING
3045	    scp->font = sc->font_8;
3046#else
3047	    scp->font = NULL;
3048#endif
3049	} else if (info.vi_cheight >= 16) {
3050#ifndef SC_NO_FONT_LOADING
3051	    scp->font = sc->font_16;
3052#else
3053	    scp->font = NULL;
3054#endif
3055	} else {
3056#ifndef SC_NO_FONT_LOADING
3057	    scp->font = sc->font_14;
3058#else
3059	    scp->font = NULL;
3060#endif
3061	}
3062
3063    sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
3064#ifndef __sparc64__
3065    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
3066#endif
3067    scp->xoff = scp->yoff = 0;
3068    scp->xpos = scp->ypos = 0;
3069    scp->start = scp->xsize * scp->ysize - 1;
3070    scp->end = 0;
3071    scp->tsw = NULL;
3072    scp->ts = NULL;
3073    scp->rndr = NULL;
3074    scp->border = (SC_NORM_ATTR >> 4) & 0x0f;
3075    scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3076    scp->mouse_cut_start = scp->xsize*scp->ysize;
3077    scp->mouse_cut_end = -1;
3078    scp->mouse_signal = 0;
3079    scp->mouse_pid = 0;
3080    scp->mouse_proc = NULL;
3081    scp->kbd_mode = K_XLATE;
3082    scp->bell_pitch = bios_value.bell_pitch;
3083    scp->bell_duration = BELL_DURATION;
3084    scp->status |= (bios_value.shift_state & NLKED);
3085    scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
3086    scp->pid = 0;
3087    scp->proc = NULL;
3088    scp->smode.mode = VT_AUTO;
3089    scp->history = NULL;
3090    scp->history_pos = 0;
3091    scp->history_size = 0;
3092
3093    mtx_init(&scp->scr_lock, "scrlock", NULL, MTX_SPIN);
3094}
3095
3096int
3097sc_init_emulator(scr_stat *scp, char *name)
3098{
3099    sc_term_sw_t *sw;
3100    sc_rndr_sw_t *rndr;
3101    void *p;
3102    int error;
3103
3104    if (name == NULL)	/* if no name is given, use the current emulator */
3105	sw = scp->tsw;
3106    else		/* ...otherwise find the named emulator */
3107	sw = sc_term_match(name);
3108    if (sw == NULL)
3109	return EINVAL;
3110
3111    rndr = NULL;
3112    if (strcmp(sw->te_renderer, "*") != 0) {
3113	rndr = sc_render_match(scp, sw->te_renderer,
3114			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3115    }
3116    if (rndr == NULL) {
3117	rndr = sc_render_match(scp, scp->sc->adp->va_name,
3118			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3119	if (rndr == NULL)
3120	    return ENODEV;
3121    }
3122
3123    if (sw == scp->tsw) {
3124	error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
3125	scp->rndr = rndr;
3126	scp->rndr->init(scp);
3127	sc_clear_screen(scp);
3128	/* assert(error == 0); */
3129	return error;
3130    }
3131
3132    if (sc_malloc && (sw->te_size > 0))
3133	p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
3134    else
3135	p = NULL;
3136    error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
3137    if (error)
3138	return error;
3139
3140    if (scp->tsw)
3141	(*scp->tsw->te_term)(scp, &scp->ts);
3142    if (scp->ts != NULL)
3143	free(scp->ts, M_DEVBUF);
3144    scp->tsw = sw;
3145    scp->ts = p;
3146    scp->rndr = rndr;
3147    scp->rndr->init(scp);
3148
3149    /* XXX */
3150    (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color);
3151    sc_clear_screen(scp);
3152
3153    return 0;
3154}
3155
3156/*
3157 * scgetc(flags) - get character from keyboard.
3158 * If flags & SCGETC_CN, then avoid harmful side effects.
3159 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
3160 * return NOKEY if there is nothing there.
3161 */
3162static u_int
3163scgetc(sc_softc_t *sc, u_int flags)
3164{
3165    scr_stat *scp;
3166#ifndef SC_NO_HISTORY
3167    struct tty *tp;
3168#endif
3169    u_int c;
3170    int this_scr;
3171    int f;
3172    int i;
3173
3174    if (sc->kbd == NULL)
3175	return NOKEY;
3176
3177next_code:
3178#if 1
3179    /* I don't like this, but... XXX */
3180    if (flags & SCGETC_CN)
3181	sccnupdate(sc->cur_scp);
3182#endif
3183    scp = sc->cur_scp;
3184    /* first see if there is something in the keyboard port */
3185    for (;;) {
3186	c = kbdd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
3187	if (c == ERRKEY) {
3188	    if (!(flags & SCGETC_CN))
3189		sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3190	} else if (c == NOKEY)
3191	    return c;
3192	else
3193	    break;
3194    }
3195
3196    /* make screensaver happy */
3197    if (!(c & RELKEY))
3198	sc_touch_scrn_saver();
3199
3200    if (!(flags & SCGETC_CN))
3201	random_harvest(&c, sizeof(c), 1, 0, RANDOM_KEYBOARD);
3202
3203    if (scp->kbd_mode != K_XLATE)
3204	return KEYCHAR(c);
3205
3206    /* if scroll-lock pressed allow history browsing */
3207    if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
3208
3209	scp->status &= ~CURSOR_ENABLED;
3210	sc_remove_cursor_image(scp);
3211
3212#ifndef SC_NO_HISTORY
3213	if (!(scp->status & BUFFER_SAVED)) {
3214	    scp->status |= BUFFER_SAVED;
3215	    sc_hist_save(scp);
3216	}
3217	switch (c) {
3218	/* FIXME: key codes */
3219	case SPCLKEY | FKEY | F(49):  /* home key */
3220	    sc_remove_cutmarking(scp);
3221	    sc_hist_home(scp);
3222	    goto next_code;
3223
3224	case SPCLKEY | FKEY | F(57):  /* end key */
3225	    sc_remove_cutmarking(scp);
3226	    sc_hist_end(scp);
3227	    goto next_code;
3228
3229	case SPCLKEY | FKEY | F(50):  /* up arrow key */
3230	    sc_remove_cutmarking(scp);
3231	    if (sc_hist_up_line(scp))
3232		if (!(flags & SCGETC_CN))
3233		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3234	    goto next_code;
3235
3236	case SPCLKEY | FKEY | F(58):  /* down arrow key */
3237	    sc_remove_cutmarking(scp);
3238	    if (sc_hist_down_line(scp))
3239		if (!(flags & SCGETC_CN))
3240		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3241	    goto next_code;
3242
3243	case SPCLKEY | FKEY | F(51):  /* page up key */
3244	    sc_remove_cutmarking(scp);
3245	    for (i=0; i<scp->ysize; i++)
3246	    if (sc_hist_up_line(scp)) {
3247		if (!(flags & SCGETC_CN))
3248		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3249		break;
3250	    }
3251	    goto next_code;
3252
3253	case SPCLKEY | FKEY | F(59):  /* page down key */
3254	    sc_remove_cutmarking(scp);
3255	    for (i=0; i<scp->ysize; i++)
3256	    if (sc_hist_down_line(scp)) {
3257		if (!(flags & SCGETC_CN))
3258		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3259		break;
3260	    }
3261	    goto next_code;
3262	}
3263#endif /* SC_NO_HISTORY */
3264    }
3265
3266    /*
3267     * Process and consume special keys here.  Return a plain char code
3268     * or a char code with the META flag or a function key code.
3269     */
3270    if (c & RELKEY) {
3271	/* key released */
3272	/* goto next_code */
3273    } else {
3274	/* key pressed */
3275	if (c & SPCLKEY) {
3276	    c &= ~SPCLKEY;
3277	    switch (KEYCHAR(c)) {
3278	    /* LOCKING KEYS */
3279	    case NLK: case CLK: case ALK:
3280		break;
3281	    case SLK:
3282		kbdd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f);
3283		if (f & SLKED) {
3284		    scp->status |= SLKED;
3285		} else {
3286		    if (scp->status & SLKED) {
3287			scp->status &= ~SLKED;
3288#ifndef SC_NO_HISTORY
3289			if (scp->status & BUFFER_SAVED) {
3290			    if (!sc_hist_restore(scp))
3291				sc_remove_cutmarking(scp);
3292			    scp->status &= ~BUFFER_SAVED;
3293			    scp->status |= CURSOR_ENABLED;
3294			    sc_draw_cursor_image(scp);
3295			}
3296			tp = SC_DEV(sc, scp->index);
3297			if (!kdb_active && tty_opened(tp))
3298			    sctty_outwakeup(tp);
3299#endif
3300		    }
3301		}
3302		break;
3303
3304	    case PASTE:
3305#ifndef SC_NO_CUTPASTE
3306		sc_mouse_paste(scp);
3307#endif
3308		break;
3309
3310	    /* NON-LOCKING KEYS */
3311	    case NOP:
3312	    case LSH:  case RSH:  case LCTR: case RCTR:
3313	    case LALT: case RALT: case ASH:  case META:
3314		break;
3315
3316	    case BTAB:
3317		if (!(sc->flags & SC_SCRN_BLANKED))
3318		    return c;
3319		break;
3320
3321	    case SPSC:
3322#ifdef DEV_SPLASH
3323		/* force activatation/deactivation of the screen saver */
3324		if (!(sc->flags & SC_SCRN_BLANKED)) {
3325		    run_scrn_saver = TRUE;
3326		    sc->scrn_time_stamp -= scrn_blank_time;
3327		}
3328		if (cold) {
3329		    /*
3330		     * While devices are being probed, the screen saver need
3331		     * to be invoked explictly. XXX
3332		     */
3333		    if (sc->flags & SC_SCRN_BLANKED) {
3334			scsplash_stick(FALSE);
3335			stop_scrn_saver(sc, current_saver);
3336		    } else {
3337			if (!ISGRAPHSC(scp)) {
3338			    scsplash_stick(TRUE);
3339			    (*current_saver)(sc, TRUE);
3340			}
3341		    }
3342		}
3343#endif /* DEV_SPLASH */
3344		break;
3345
3346	    case RBT:
3347#ifndef SC_DISABLE_REBOOT
3348		if (enable_reboot)
3349			shutdown_nice(0);
3350#endif
3351		break;
3352
3353	    case HALT:
3354#ifndef SC_DISABLE_REBOOT
3355		if (enable_reboot)
3356			shutdown_nice(RB_HALT);
3357#endif
3358		break;
3359
3360	    case PDWN:
3361#ifndef SC_DISABLE_REBOOT
3362		if (enable_reboot)
3363			shutdown_nice(RB_HALT|RB_POWEROFF);
3364#endif
3365		break;
3366
3367	    case SUSP:
3368		power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
3369		break;
3370	    case STBY:
3371		power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
3372		break;
3373
3374	    case DBG:
3375#ifndef SC_DISABLE_KDBKEY
3376		if (enable_kdbkey)
3377			kdb_enter(KDB_WHY_BREAK, "manual escape to debugger");
3378#endif
3379		break;
3380
3381	    case PNC:
3382		if (enable_panic_key)
3383			panic("Forced by the panic key");
3384		break;
3385
3386	    case NEXT:
3387		this_scr = scp->index;
3388		for (i = (this_scr - sc->first_vty + 1)%sc->vtys;
3389			sc->first_vty + i != this_scr;
3390			i = (i + 1)%sc->vtys) {
3391		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3392		    if (tty_opened(tp)) {
3393			sc_switch_scr(scp->sc, sc->first_vty + i);
3394			break;
3395		    }
3396		}
3397		break;
3398
3399	    case PREV:
3400		this_scr = scp->index;
3401		for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys;
3402			sc->first_vty + i != this_scr;
3403			i = (i + sc->vtys - 1)%sc->vtys) {
3404		    struct tty *tp = SC_DEV(sc, sc->first_vty + i);
3405		    if (tty_opened(tp)) {
3406			sc_switch_scr(scp->sc, sc->first_vty + i);
3407			break;
3408		    }
3409		}
3410		break;
3411
3412	    default:
3413		if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) {
3414		    sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR);
3415		    break;
3416		}
3417		/* assert(c & FKEY) */
3418		if (!(sc->flags & SC_SCRN_BLANKED))
3419		    return c;
3420		break;
3421	    }
3422	    /* goto next_code */
3423	} else {
3424	    /* regular keys (maybe MKEY is set) */
3425	    if (!(sc->flags & SC_SCRN_BLANKED))
3426		return c;
3427	}
3428    }
3429
3430    goto next_code;
3431}
3432
3433static int
3434sctty_mmap(struct tty *tp, vm_ooffset_t offset, vm_paddr_t *paddr,
3435    int nprot, vm_memattr_t *memattr)
3436{
3437    scr_stat *scp;
3438
3439    scp = sc_get_stat(tp);
3440    if (scp != scp->sc->cur_scp)
3441	return -1;
3442    return vidd_mmap(scp->sc->adp, offset, paddr, nprot, memattr);
3443}
3444
3445static int
3446save_kbd_state(scr_stat *scp)
3447{
3448    int state;
3449    int error;
3450
3451    error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3452    if (error == ENOIOCTL)
3453	error = ENODEV;
3454    if (error == 0) {
3455	scp->status &= ~LOCK_MASK;
3456	scp->status |= state;
3457    }
3458    return error;
3459}
3460
3461static int
3462update_kbd_state(scr_stat *scp, int new_bits, int mask)
3463{
3464    int state;
3465    int error;
3466
3467    if (mask != LOCK_MASK) {
3468	error = kbdd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3469	if (error == ENOIOCTL)
3470	    error = ENODEV;
3471	if (error)
3472	    return error;
3473	state &= ~mask;
3474	state |= new_bits & mask;
3475    } else {
3476	state = new_bits & LOCK_MASK;
3477    }
3478    error = kbdd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
3479    if (error == ENOIOCTL)
3480	error = ENODEV;
3481    return error;
3482}
3483
3484static int
3485update_kbd_leds(scr_stat *scp, int which)
3486{
3487    int error;
3488
3489    which &= LOCK_MASK;
3490    error = kbdd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
3491    if (error == ENOIOCTL)
3492	error = ENODEV;
3493    return error;
3494}
3495
3496int
3497set_mode(scr_stat *scp)
3498{
3499    video_info_t info;
3500
3501    /* reject unsupported mode */
3502    if (vidd_get_info(scp->sc->adp, scp->mode, &info))
3503	return 1;
3504
3505    /* if this vty is not currently showing, do nothing */
3506    if (scp != scp->sc->cur_scp)
3507	return 0;
3508
3509    /* setup video hardware for the given mode */
3510    vidd_set_mode(scp->sc->adp, scp->mode);
3511    scp->rndr->init(scp);
3512#ifndef __sparc64__
3513    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3514		(void *)scp->sc->adp->va_window, FALSE);
3515#endif
3516
3517#ifndef SC_NO_FONT_LOADING
3518    /* load appropriate font */
3519    if (!(scp->status & GRAPHICS_MODE)) {
3520	if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) {
3521	    if (scp->font_size < 14) {
3522		if (scp->sc->fonts_loaded & FONT_8)
3523		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
3524	    } else if (scp->font_size >= 16) {
3525		if (scp->sc->fonts_loaded & FONT_16)
3526		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
3527	    } else {
3528		if (scp->sc->fonts_loaded & FONT_14)
3529		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
3530	    }
3531	    /*
3532	     * FONT KLUDGE:
3533	     * This is an interim kludge to display correct font.
3534	     * Always use the font page #0 on the video plane 2.
3535	     * Somehow we cannot show the font in other font pages on
3536	     * some video cards... XXX
3537	     */
3538	    sc_show_font(scp, 0);
3539	}
3540	mark_all(scp);
3541    }
3542#endif /* !SC_NO_FONT_LOADING */
3543
3544    sc_set_border(scp, scp->border);
3545    sc_set_cursor_image(scp);
3546
3547    return 0;
3548}
3549
3550void
3551sc_set_border(scr_stat *scp, int color)
3552{
3553    SC_VIDEO_LOCK(scp->sc);
3554    (*scp->rndr->draw_border)(scp, color);
3555    SC_VIDEO_UNLOCK(scp->sc);
3556}
3557
3558#ifndef SC_NO_FONT_LOADING
3559void
3560sc_load_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3561	     int base, int count)
3562{
3563    sc_softc_t *sc;
3564
3565    sc = scp->sc;
3566    sc->font_loading_in_progress = TRUE;
3567    vidd_load_font(sc->adp, page, size, width, buf, base, count);
3568    sc->font_loading_in_progress = FALSE;
3569}
3570
3571void
3572sc_save_font(scr_stat *scp, int page, int size, int width, u_char *buf,
3573	     int base, int count)
3574{
3575    sc_softc_t *sc;
3576
3577    sc = scp->sc;
3578    sc->font_loading_in_progress = TRUE;
3579    vidd_save_font(sc->adp, page, size, width, buf, base, count);
3580    sc->font_loading_in_progress = FALSE;
3581}
3582
3583void
3584sc_show_font(scr_stat *scp, int page)
3585{
3586    vidd_show_font(scp->sc->adp, page);
3587}
3588#endif /* !SC_NO_FONT_LOADING */
3589
3590void
3591sc_paste(scr_stat *scp, const u_char *p, int count)
3592{
3593    struct tty *tp;
3594    u_char *rmap;
3595
3596    tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3597    if (!tty_opened(tp))
3598	return;
3599    rmap = scp->sc->scr_rmap;
3600    for (; count > 0; --count)
3601	ttydisc_rint(tp, rmap[*p++], 0);
3602    ttydisc_rint_done(tp);
3603}
3604
3605void
3606sc_respond(scr_stat *scp, const u_char *p, int count, int wakeup)
3607{
3608    struct tty *tp;
3609
3610    tp = SC_DEV(scp->sc, scp->sc->cur_scp->index);
3611    if (!tty_opened(tp))
3612	return;
3613    ttydisc_rint_simple(tp, p, count);
3614    if (wakeup) {
3615	/* XXX: we can't always call ttydisc_rint_done() here! */
3616	ttydisc_rint_done(tp);
3617    }
3618}
3619
3620void
3621sc_bell(scr_stat *scp, int pitch, int duration)
3622{
3623    if (cold || shutdown_in_progress || !enable_bell)
3624	return;
3625
3626    if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
3627	return;
3628
3629    if (scp->sc->flags & SC_VISUAL_BELL) {
3630	if (scp->sc->blink_in_progress)
3631	    return;
3632	scp->sc->blink_in_progress = 3;
3633	if (scp != scp->sc->cur_scp)
3634	    scp->sc->blink_in_progress += 2;
3635	blink_screen(scp->sc->cur_scp);
3636    } else if (duration != 0 && pitch != 0) {
3637	if (scp != scp->sc->cur_scp)
3638	    pitch *= 2;
3639	sysbeep(1193182 / pitch, duration);
3640    }
3641}
3642
3643static void
3644blink_screen(void *arg)
3645{
3646    scr_stat *scp = arg;
3647    struct tty *tp;
3648
3649    if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
3650	scp->sc->blink_in_progress = 0;
3651    	mark_all(scp);
3652	tp = SC_DEV(scp->sc, scp->index);
3653	if (tty_opened(tp))
3654	    sctty_outwakeup(tp);
3655	if (scp->sc->delayed_next_scr)
3656	    sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
3657    }
3658    else {
3659	(*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize,
3660			   scp->sc->blink_in_progress & 1);
3661	scp->sc->blink_in_progress--;
3662	timeout(blink_screen, scp, hz / 10);
3663    }
3664}
3665
3666/*
3667 * Until sc_attach_unit() gets called no dev structures will be available
3668 * to store the per-screen current status.  This is the case when the
3669 * kernel is initially booting and needs access to its console.  During
3670 * this early phase of booting the console's current status is kept in
3671 * one statically defined scr_stat structure, and any pointers to the
3672 * dev structures will be NULL.
3673 */
3674
3675static scr_stat *
3676sc_get_stat(struct tty *tp)
3677{
3678	if (tp == NULL)
3679		return (&main_console);
3680	return (SC_STAT(tp));
3681}
3682
3683/*
3684 * Allocate active keyboard. Try to allocate "kbdmux" keyboard first, and,
3685 * if found, add all non-busy keyboards to "kbdmux". Otherwise look for
3686 * any keyboard.
3687 */
3688
3689static int
3690sc_allocate_keyboard(sc_softc_t *sc, int unit)
3691{
3692	int		 idx0, idx;
3693	keyboard_t	*k0, *k;
3694	keyboard_info_t	 ki;
3695
3696	idx0 = kbd_allocate("kbdmux", -1, (void *)&sc->keyboard, sckbdevent, sc);
3697	if (idx0 != -1) {
3698		k0 = kbd_get_keyboard(idx0);
3699
3700		for (idx = kbd_find_keyboard2("*", -1, 0);
3701		     idx != -1;
3702		     idx = kbd_find_keyboard2("*", -1, idx + 1)) {
3703			k = kbd_get_keyboard(idx);
3704
3705			if (idx == idx0 || KBD_IS_BUSY(k))
3706				continue;
3707
3708			bzero(&ki, sizeof(ki));
3709			strcpy(ki.kb_name, k->kb_name);
3710			ki.kb_unit = k->kb_unit;
3711
3712			kbdd_ioctl(k0, KBADDKBD, (caddr_t) &ki);
3713		}
3714	} else
3715		idx0 = kbd_allocate("*", unit, (void *)&sc->keyboard, sckbdevent, sc);
3716
3717	return (idx0);
3718}
3719