syscons.c revision 119420 
1/*-
2 * Copyright (c) 1992-1998 S�ren Schmidt
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: head/sys/dev/syscons/syscons.c 119420 2003-08-24 18:17:24Z obrien $");
31
32#include "opt_syscons.h"
33#include "opt_splash.h"
34#include "opt_ddb.h"
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/conf.h>
39#include <sys/cons.h>
40#include <sys/consio.h>
41#include <sys/eventhandler.h>
42#include <sys/fbio.h>
43#include <sys/kbio.h>
44#include <sys/kernel.h>
45#include <sys/lock.h>
46#include <sys/malloc.h>
47#include <sys/mutex.h>
48#include <sys/proc.h>
49#include <sys/random.h>
50#include <sys/reboot.h>
51#include <sys/signalvar.h>
52#include <sys/sysctl.h>
53#include <sys/tty.h>
54#include <sys/power.h>
55
56#include <machine/clock.h>
57#ifdef __sparc64__
58#include <machine/sc_machdep.h>
59#else
60#include <machine/pc/display.h>
61#endif
62#ifdef __i386__
63#include <machine/psl.h>
64#include <machine/apm_bios.h>
65#include <machine/frame.h>
66#endif
67
68#include <dev/kbd/kbdreg.h>
69#include <dev/fb/fbreg.h>
70#include <dev/fb/splashreg.h>
71#include <dev/syscons/syscons.h>
72
73#define COLD 0
74#define WARM 1
75
76#define DEFAULT_BLANKTIME	(5*60)		/* 5 minutes */
77#define MAX_BLANKTIME		(7*24*60*60)	/* 7 days!? */
78
79#define KEYCODE_BS		0x0e		/* "<-- Backspace" key, XXX */
80
81typedef struct default_attr {
82	int		std_color;		/* normal hardware color */
83	int		rev_color;		/* reverse hardware color */
84} default_attr;
85
86static default_attr user_default = {
87    SC_NORM_ATTR,
88    SC_NORM_REV_ATTR,
89};
90
91static default_attr kernel_default = {
92    SC_KERNEL_CONS_ATTR,
93    SC_KERNEL_CONS_REV_ATTR,
94};
95
96static	int		sc_console_unit = -1;
97static	int		sc_saver_keyb_only = 1;
98static  scr_stat    	*sc_console;
99static	struct tty	*sc_console_tty;
100static	void		*kernel_console_ts;
101
102static  char        	init_done = COLD;
103static  char		shutdown_in_progress = FALSE;
104static	char		sc_malloc = FALSE;
105
106static	int		saver_mode = CONS_NO_SAVER; /* LKM/user saver */
107static	int		run_scrn_saver = FALSE;	/* should run the saver? */
108static	int		enable_bell = TRUE; /* enable beeper */
109static	long        	scrn_blank_time = 0;    /* screen saver timeout value */
110#ifdef DEV_SPLASH
111static	int     	scrn_blanked;		/* # of blanked screen */
112static	int		sticky_splash = FALSE;
113
114static	void		none_saver(sc_softc_t *sc, int blank) { }
115static	void		(*current_saver)(sc_softc_t *, int) = none_saver;
116#endif
117
118SYSCTL_NODE(_hw, OID_AUTO, syscons, CTLFLAG_RD, 0, "syscons");
119SYSCTL_NODE(_hw_syscons, OID_AUTO, saver, CTLFLAG_RD, 0, "saver");
120SYSCTL_INT(_hw_syscons_saver, OID_AUTO, keybonly, CTLFLAG_RW,
121    &sc_saver_keyb_only, 0, "screen saver interrupted by input only");
122SYSCTL_INT(_hw_syscons, OID_AUTO, bell, CTLFLAG_RW, &enable_bell,
123    0, "enable bell");
124#if !defined(SC_NO_FONT_LOADING) && defined(SC_DFLT_FONT)
125#include "font.h"
126#endif
127
128	d_ioctl_t	*sc_user_ioctl;
129
130static	bios_values_t	bios_value;
131
132static	int		enable_panic_key;
133SYSCTL_INT(_machdep, OID_AUTO, enable_panic_key, CTLFLAG_RW, &enable_panic_key,
134	   0, "");
135
136#define SC_CONSOLECTL	255
137
138#define VIRTUAL_TTY(sc, x) (SC_DEV((sc), (x)) != NULL ?	\
139	SC_DEV((sc), (x))->si_tty : NULL)
140#define ISTTYOPEN(tp)	((tp) && ((tp)->t_state & TS_ISOPEN))
141
142static	int		debugger;
143
144/* prototypes */
145static int scvidprobe(int unit, int flags, int cons);
146static int sckbdprobe(int unit, int flags, int cons);
147static void scmeminit(void *arg);
148static int scdevtounit(dev_t dev);
149static kbd_callback_func_t sckbdevent;
150static int scparam(struct tty *tp, struct termios *t);
151static void scstart(struct tty *tp);
152static void scinit(int unit, int flags);
153#if __i386__ || __ia64__ || __amd64__ || __sparc64__
154static void scterm(int unit, int flags);
155#endif
156static void scshutdown(void *arg, int howto);
157static u_int scgetc(sc_softc_t *sc, u_int flags);
158#define SCGETC_CN	1
159#define SCGETC_NONBLOCK	2
160static int sccngetch(int flags);
161static void sccnupdate(scr_stat *scp);
162static scr_stat *alloc_scp(sc_softc_t *sc, int vty);
163static void init_scp(sc_softc_t *sc, int vty, scr_stat *scp);
164static timeout_t scrn_timer;
165static int and_region(int *s1, int *e1, int s2, int e2);
166static void scrn_update(scr_stat *scp, int show_cursor);
167
168#ifdef DEV_SPLASH
169static int scsplash_callback(int event, void *arg);
170static void scsplash_saver(sc_softc_t *sc, int show);
171static int add_scrn_saver(void (*this_saver)(sc_softc_t *, int));
172static int remove_scrn_saver(void (*this_saver)(sc_softc_t *, int));
173static int set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border);
174static int restore_scrn_saver_mode(scr_stat *scp, int changemode);
175static void stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int));
176static int wait_scrn_saver_stop(sc_softc_t *sc);
177#define scsplash_stick(stick)		(sticky_splash = (stick))
178#else /* !DEV_SPLASH */
179#define scsplash_stick(stick)
180#endif /* DEV_SPLASH */
181
182static int do_switch_scr(sc_softc_t *sc, int s);
183static int vt_proc_alive(scr_stat *scp);
184static int signal_vt_rel(scr_stat *scp);
185static int signal_vt_acq(scr_stat *scp);
186static int finish_vt_rel(scr_stat *scp, int release, int *s);
187static int finish_vt_acq(scr_stat *scp);
188static void exchange_scr(sc_softc_t *sc);
189static void update_cursor_image(scr_stat *scp);
190static void change_cursor_shape(scr_stat *scp, int flags, int base, int height);
191static int save_kbd_state(scr_stat *scp);
192static int update_kbd_state(scr_stat *scp, int state, int mask);
193static int update_kbd_leds(scr_stat *scp, int which);
194static timeout_t blink_screen;
195
196#define	CDEV_MAJOR	12
197
198static cn_probe_t	sccnprobe;
199static cn_init_t	sccninit;
200static cn_getc_t	sccngetc;
201static cn_checkc_t	sccncheckc;
202static cn_putc_t	sccnputc;
203static cn_dbctl_t	sccndbctl;
204static cn_term_t	sccnterm;
205
206#if __alpha__
207void sccnattach(void);
208#endif
209
210CONS_DRIVER(sc, sccnprobe, sccninit, sccnterm, sccngetc, sccncheckc, sccnputc,
211	    sccndbctl);
212
213static	d_open_t	scopen;
214static	d_close_t	scclose;
215static	d_read_t	scread;
216static	d_ioctl_t	scioctl;
217static	d_mmap_t	scmmap;
218
219static struct cdevsw sc_cdevsw = {
220	.d_open =	scopen,
221	.d_close =	scclose,
222	.d_read =	scread,
223	.d_write =	ttywrite,
224	.d_ioctl =	scioctl,
225	.d_poll =	ttypoll,
226	.d_mmap =	scmmap,
227	.d_name =	"sc",
228	.d_maj =	CDEV_MAJOR,
229	.d_flags =	D_TTY,
230	.d_kqfilter =	ttykqfilter
231};
232
233int
234sc_probe_unit(int unit, int flags)
235{
236    if (!scvidprobe(unit, flags, FALSE)) {
237	if (bootverbose)
238	    printf("sc%d: no video adapter found.\n", unit);
239	return ENXIO;
240    }
241
242    /* syscons will be attached even when there is no keyboard */
243    sckbdprobe(unit, flags, FALSE);
244
245    return 0;
246}
247
248/* probe video adapters, return TRUE if found */
249static int
250scvidprobe(int unit, int flags, int cons)
251{
252    /*
253     * Access the video adapter driver through the back door!
254     * Video adapter drivers need to be configured before syscons.
255     * However, when syscons is being probed as the low-level console,
256     * they have not been initialized yet.  We force them to initialize
257     * themselves here. XXX
258     */
259    vid_configure(cons ? VIO_PROBE_ONLY : 0);
260
261    return (vid_find_adapter("*", unit) >= 0);
262}
263
264/* probe the keyboard, return TRUE if found */
265static int
266sckbdprobe(int unit, int flags, int cons)
267{
268    /* access the keyboard driver through the backdoor! */
269    kbd_configure(cons ? KB_CONF_PROBE_ONLY : 0);
270
271    return (kbd_find_keyboard("*", unit) >= 0);
272}
273
274static char
275*adapter_name(video_adapter_t *adp)
276{
277    static struct {
278	int type;
279	char *name[2];
280    } names[] = {
281	{ KD_MONO,	{ "MDA",	"MDA" } },
282	{ KD_HERCULES,	{ "Hercules",	"Hercules" } },
283	{ KD_CGA,	{ "CGA",	"CGA" } },
284	{ KD_EGA,	{ "EGA",	"EGA (mono)" } },
285	{ KD_VGA,	{ "VGA",	"VGA (mono)" } },
286	{ KD_PC98,	{ "PC-98x1",	"PC-98x1" } },
287	{ KD_TGA,	{ "TGA",	"TGA" } },
288	{ -1,		{ "Unknown",	"Unknown" } },
289    };
290    int i;
291
292    for (i = 0; names[i].type != -1; ++i)
293	if (names[i].type == adp->va_type)
294	    break;
295    return names[i].name[(adp->va_flags & V_ADP_COLOR) ? 0 : 1];
296}
297
298int
299sc_attach_unit(int unit, int flags)
300{
301    sc_softc_t *sc;
302    scr_stat *scp;
303#ifdef SC_PIXEL_MODE
304    video_info_t info;
305#endif
306    int vc;
307    dev_t dev;
308
309    flags &= ~SC_KERNEL_CONSOLE;
310
311    if (sc_console_unit == unit) {
312	/*
313	 * If this unit is being used as the system console, we need to
314	 * adjust some variables and buffers before and after scinit().
315	 */
316	/* assert(sc_console != NULL) */
317	flags |= SC_KERNEL_CONSOLE;
318	scmeminit(NULL);
319
320	scinit(unit, flags);
321
322	if (sc_console->tsw->te_size > 0) {
323	    /* assert(sc_console->ts != NULL); */
324	    kernel_console_ts = sc_console->ts;
325	    sc_console->ts = malloc(sc_console->tsw->te_size,
326				    M_DEVBUF, M_WAITOK);
327	    bcopy(kernel_console_ts, sc_console->ts, sc_console->tsw->te_size);
328    	    (*sc_console->tsw->te_default_attr)(sc_console,
329						user_default.std_color,
330						user_default.rev_color);
331	}
332    } else {
333	scinit(unit, flags);
334    }
335
336    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
337    sc->config = flags;
338    scp = SC_STAT(sc->dev[0]);
339    if (sc_console == NULL)	/* sc_console_unit < 0 */
340	sc_console = scp;
341
342#ifdef SC_PIXEL_MODE
343    if ((sc->config & SC_VESA800X600)
344	&& ((*vidsw[sc->adapter]->get_info)(sc->adp, M_VESA_800x600, &info) == 0)) {
345#ifdef DEV_SPLASH
346	if (sc->flags & SC_SPLASH_SCRN)
347	    splash_term(sc->adp);
348#endif
349	sc_set_graphics_mode(scp, NULL, M_VESA_800x600);
350	sc_set_pixel_mode(scp, NULL, COL, ROW, 16);
351	sc->initial_mode = M_VESA_800x600;
352#ifdef DEV_SPLASH
353	/* put up the splash again! */
354	if (sc->flags & SC_SPLASH_SCRN)
355    	    splash_init(sc->adp, scsplash_callback, sc);
356#endif
357    }
358#endif /* SC_PIXEL_MODE */
359
360    /* initialize cursor */
361    if (!ISGRAPHSC(scp))
362    	update_cursor_image(scp);
363
364    /* get screen update going */
365    scrn_timer(sc);
366
367    /* set up the keyboard */
368    kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
369    update_kbd_state(scp, scp->status, LOCK_MASK);
370
371    printf("sc%d: %s <%d virtual consoles, flags=0x%x>\n",
372	   unit, adapter_name(sc->adp), sc->vtys, sc->config);
373    if (bootverbose) {
374	printf("sc%d:", unit);
375    	if (sc->adapter >= 0)
376	    printf(" fb%d", sc->adapter);
377	if (sc->keyboard >= 0)
378	    printf(", kbd%d", sc->keyboard);
379	if (scp->tsw)
380	    printf(", terminal emulator: %s (%s)",
381		   scp->tsw->te_name, scp->tsw->te_desc);
382	printf("\n");
383    }
384
385    /* register a shutdown callback for the kernel console */
386    if (sc_console_unit == unit)
387	EVENTHANDLER_REGISTER(shutdown_pre_sync, scshutdown,
388			      (void *)(uintptr_t)unit, SHUTDOWN_PRI_DEFAULT);
389
390    for (vc = 0; vc < sc->vtys; vc++) {
391	dev = make_dev(&sc_cdevsw, vc + unit * MAXCONS,
392	    UID_ROOT, GID_WHEEL, 0600, "ttyv%r", vc + unit * MAXCONS);
393	sc->dev[vc] = dev;
394	/*
395	 * The first vty already has struct tty and scr_stat initialized
396	 * in scinit().  The other vtys will have these structs when
397	 * first opened.
398	 */
399    }
400
401    dev = make_dev(&sc_cdevsw, SC_CONSOLECTL,
402		   UID_ROOT, GID_WHEEL, 0600, "consolectl");
403    dev->si_tty = sc_console_tty = ttymalloc(sc_console_tty);
404    SC_STAT(dev) = sc_console;
405
406    return 0;
407}
408
409static void
410scmeminit(void *arg)
411{
412    if (sc_malloc)
413	return;
414    sc_malloc = TRUE;
415
416    /*
417     * As soon as malloc() becomes functional, we had better allocate
418     * various buffers for the kernel console.
419     */
420
421    if (sc_console_unit < 0)	/* sc_console == NULL */
422	return;
423
424    /* copy the temporary buffer to the final buffer */
425    sc_alloc_scr_buffer(sc_console, FALSE, FALSE);
426
427#ifndef SC_NO_CUTPASTE
428    sc_alloc_cut_buffer(sc_console, FALSE);
429#endif
430
431#ifndef SC_NO_HISTORY
432    /* initialize history buffer & pointers */
433    sc_alloc_history_buffer(sc_console, 0, 0, FALSE);
434#endif
435}
436
437/* XXX */
438SYSINIT(sc_mem, SI_SUB_KMEM, SI_ORDER_ANY, scmeminit, NULL);
439
440static int
441scdevtounit(dev_t dev)
442{
443    int vty = SC_VTY(dev);
444
445    if (vty == SC_CONSOLECTL)
446	return ((sc_console != NULL) ? sc_console->sc->unit : -1);
447    else if ((vty < 0) || (vty >= MAXCONS*sc_max_unit()))
448	return -1;
449    else
450	return vty/MAXCONS;
451}
452
453static int
454scopen(dev_t dev, int flag, int mode, struct thread *td)
455{
456    int unit = scdevtounit(dev);
457    sc_softc_t *sc;
458    struct tty *tp;
459    scr_stat *scp;
460#ifndef __sparc64__
461    keyarg_t key;
462#endif
463    int error;
464
465    DPRINTF(5, ("scopen: dev:%d,%d, unit:%d, vty:%d\n",
466		major(dev), minor(dev), unit, SC_VTY(dev)));
467
468    sc = sc_get_softc(unit, (sc_console_unit == unit) ? SC_KERNEL_CONSOLE : 0);
469    if (sc == NULL)
470	return ENXIO;
471
472    tp = dev->si_tty = ttymalloc(dev->si_tty);
473    tp->t_oproc = scstart;
474    tp->t_param = scparam;
475    tp->t_stop = nottystop;
476    tp->t_dev = dev;
477    if (!ISTTYOPEN(tp)) {
478	ttychars(tp);
479        /* Use the current setting of the <-- key as default VERASE. */
480        /* If the Delete key is preferable, an stty is necessary     */
481#ifndef __sparc64__
482	if (sc->kbd != NULL) {
483	    key.keynum = KEYCODE_BS;
484	    kbd_ioctl(sc->kbd, GIO_KEYMAPENT, (caddr_t)&key);
485            tp->t_cc[VERASE] = key.key.map[0];
486	}
487#endif
488	tp->t_iflag = TTYDEF_IFLAG;
489	tp->t_oflag = TTYDEF_OFLAG;
490	tp->t_cflag = TTYDEF_CFLAG;
491	tp->t_lflag = TTYDEF_LFLAG;
492	tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
493	scparam(tp, &tp->t_termios);
494	(*linesw[tp->t_line].l_modem)(tp, 1);
495    }
496    else
497	if (tp->t_state & TS_XCLUDE && suser(td))
498	    return(EBUSY);
499
500    error = (*linesw[tp->t_line].l_open)(dev, tp);
501
502    scp = SC_STAT(dev);
503    if (scp == NULL) {
504	scp = SC_STAT(dev) = alloc_scp(sc, SC_VTY(dev));
505	if (ISGRAPHSC(scp))
506	    sc_set_pixel_mode(scp, NULL, COL, ROW, 16);
507    }
508    if (!tp->t_winsize.ws_col && !tp->t_winsize.ws_row) {
509	tp->t_winsize.ws_col = scp->xsize;
510	tp->t_winsize.ws_row = scp->ysize;
511    }
512
513    return error;
514}
515
516static int
517scclose(dev_t dev, int flag, int mode, struct thread *td)
518{
519    struct tty *tp = dev->si_tty;
520    scr_stat *scp;
521    int s;
522
523    if (SC_VTY(dev) != SC_CONSOLECTL) {
524	scp = SC_STAT(tp->t_dev);
525	/* were we in the middle of the VT switching process? */
526	DPRINTF(5, ("sc%d: scclose(), ", scp->sc->unit));
527	s = spltty();
528	if ((scp == scp->sc->cur_scp) && (scp->sc->unit == sc_console_unit))
529	    cons_unavail = FALSE;
530	if (finish_vt_rel(scp, TRUE, &s) == 0)	/* force release */
531	    DPRINTF(5, ("reset WAIT_REL, "));
532	if (finish_vt_acq(scp) == 0)		/* force acknowledge */
533	    DPRINTF(5, ("reset WAIT_ACQ, "));
534#if not_yet_done
535	if (scp == &main_console) {
536	    scp->pid = 0;
537	    scp->proc = NULL;
538	    scp->smode.mode = VT_AUTO;
539	}
540	else {
541	    sc_vtb_destroy(&scp->vtb);
542#ifndef __sparc64__
543	    sc_vtb_destroy(&scp->scr);
544#endif
545	    sc_free_history_buffer(scp, scp->ysize);
546	    SC_STAT(dev) = NULL;
547	    free(scp, M_DEVBUF);
548	}
549#else
550	scp->pid = 0;
551	scp->proc = NULL;
552	scp->smode.mode = VT_AUTO;
553#endif
554	scp->kbd_mode = K_XLATE;
555	if (scp == scp->sc->cur_scp)
556	    kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
557	DPRINTF(5, ("done.\n"));
558    }
559    spltty();
560    (*linesw[tp->t_line].l_close)(tp, flag);
561    ttyclose(tp);
562    spl0();
563    return(0);
564}
565
566static int
567scread(dev_t dev, struct uio *uio, int flag)
568{
569    if (!sc_saver_keyb_only)
570	sc_touch_scrn_saver();
571    return ttyread(dev, uio, flag);
572}
573
574static int
575sckbdevent(keyboard_t *thiskbd, int event, void *arg)
576{
577    sc_softc_t *sc;
578    struct tty *cur_tty;
579    int c;
580    size_t len;
581    u_char *cp;
582
583    sc = (sc_softc_t *)arg;
584    /* assert(thiskbd == sc->kbd) */
585
586    switch (event) {
587    case KBDIO_KEYINPUT:
588	break;
589    case KBDIO_UNLOADING:
590	sc->kbd = NULL;
591	sc->keyboard = -1;
592	kbd_release(thiskbd, (void *)&sc->keyboard);
593	return 0;
594    default:
595	return EINVAL;
596    }
597
598    /*
599     * Loop while there is still input to get from the keyboard.
600     * I don't think this is nessesary, and it doesn't fix
601     * the Xaccel-2.1 keyboard hang, but it can't hurt.		XXX
602     */
603    while ((c = scgetc(sc, SCGETC_NONBLOCK)) != NOKEY) {
604
605	cur_tty = VIRTUAL_TTY(sc, sc->cur_scp->index);
606	if (!ISTTYOPEN(cur_tty)) {
607	    cur_tty = sc_console_tty;
608	    if (!ISTTYOPEN(cur_tty))
609		continue;
610	}
611
612	if ((*sc->cur_scp->tsw->te_input)(sc->cur_scp, c, cur_tty))
613	    continue;
614
615	switch (KEYFLAGS(c)) {
616	case 0x0000: /* normal key */
617	    (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty);
618	    break;
619	case FKEY:  /* function key, return string */
620	    cp = kbd_get_fkeystr(thiskbd, KEYCHAR(c), &len);
621	    if (cp != NULL) {
622	    	while (len-- >  0)
623		    (*linesw[cur_tty->t_line].l_rint)(*cp++, cur_tty);
624	    }
625	    break;
626	case MKEY:  /* meta is active, prepend ESC */
627	    (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
628	    (*linesw[cur_tty->t_line].l_rint)(KEYCHAR(c), cur_tty);
629	    break;
630	case BKEY:  /* backtab fixed sequence (esc [ Z) */
631	    (*linesw[cur_tty->t_line].l_rint)(0x1b, cur_tty);
632	    (*linesw[cur_tty->t_line].l_rint)('[', cur_tty);
633	    (*linesw[cur_tty->t_line].l_rint)('Z', cur_tty);
634	    break;
635	}
636    }
637
638    sc->cur_scp->status |= MOUSE_HIDDEN;
639
640    return 0;
641}
642
643static int
644scparam(struct tty *tp, struct termios *t)
645{
646    tp->t_ispeed = t->c_ispeed;
647    tp->t_ospeed = t->c_ospeed;
648    tp->t_cflag = t->c_cflag;
649    return 0;
650}
651
652static int
653scioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
654{
655    int error;
656    int i;
657    struct tty *tp;
658    sc_softc_t *sc;
659    scr_stat *scp;
660    int s;
661
662    tp = dev->si_tty;
663
664    /* If there is a user_ioctl function call that first */
665    if (sc_user_ioctl) {
666	error = (*sc_user_ioctl)(dev, cmd, data, flag, td);
667	if (error != ENOIOCTL)
668	    return error;
669    }
670
671    error = sc_vid_ioctl(tp, cmd, data, flag, td);
672    if (error != ENOIOCTL)
673	return error;
674
675#ifndef SC_NO_HISTORY
676    error = sc_hist_ioctl(tp, cmd, data, flag, td);
677    if (error != ENOIOCTL)
678	return error;
679#endif
680
681#ifndef SC_NO_SYSMOUSE
682    error = sc_mouse_ioctl(tp, cmd, data, flag, td);
683    if (error != ENOIOCTL)
684	return error;
685#endif
686
687    scp = SC_STAT(tp->t_dev);
688    /* assert(scp != NULL) */
689    /* scp is sc_console, if SC_VTY(dev) == SC_CONSOLECTL. */
690    sc = scp->sc;
691
692    if (scp->tsw) {
693	error = (*scp->tsw->te_ioctl)(scp, tp, cmd, data, flag, td);
694	if (error != ENOIOCTL)
695	    return error;
696    }
697
698    switch (cmd) {  		/* process console hardware related ioctl's */
699
700    case GIO_ATTR:      	/* get current attributes */
701	/* this ioctl is not processed here, but in the terminal emulator */
702	return ENOTTY;
703
704    case GIO_COLOR:     	/* is this a color console ? */
705	*(int *)data = (sc->adp->va_flags & V_ADP_COLOR) ? 1 : 0;
706	return 0;
707
708    case CONS_BLANKTIME:    	/* set screen saver timeout (0 = no saver) */
709	if (*(int *)data < 0 || *(int *)data > MAX_BLANKTIME)
710            return EINVAL;
711	s = spltty();
712	scrn_blank_time = *(int *)data;
713	run_scrn_saver = (scrn_blank_time != 0);
714	splx(s);
715	return 0;
716
717    case CONS_CURSORTYPE:   	/* set cursor type (obsolete) */
718	s = spltty();
719	*(int *)data &= CONS_CURSOR_ATTRS;
720	sc_change_cursor_shape(scp, *(int *)data, -1, -1);
721	splx(s);
722	return 0;
723
724    case CONS_GETCURSORSHAPE:   /* get cursor shape (new interface) */
725	if (((int *)data)[0] & CONS_LOCAL_CURSOR) {
726	    ((int *)data)[0] = scp->curr_curs_attr.flags;
727	    ((int *)data)[1] = scp->curr_curs_attr.base;
728	    ((int *)data)[2] = scp->curr_curs_attr.height;
729	} else {
730	    ((int *)data)[0] = sc->curs_attr.flags;
731	    ((int *)data)[1] = sc->curs_attr.base;
732	    ((int *)data)[2] = sc->curs_attr.height;
733	}
734	return 0;
735
736    case CONS_SETCURSORSHAPE:   /* set cursor shape (new interface) */
737	s = spltty();
738	sc_change_cursor_shape(scp, ((int *)data)[0],
739	    ((int *)data)[1], ((int *)data)[2]);
740	splx(s);
741	return 0;
742
743    case CONS_BELLTYPE: 	/* set bell type sound/visual */
744	if ((*(int *)data) & 0x01)
745	    sc->flags |= SC_VISUAL_BELL;
746	else
747	    sc->flags &= ~SC_VISUAL_BELL;
748	if ((*(int *)data) & 0x02)
749	    sc->flags |= SC_QUIET_BELL;
750	else
751	    sc->flags &= ~SC_QUIET_BELL;
752	return 0;
753
754    case CONS_GETINFO:  	/* get current (virtual) console info */
755    {
756	vid_info_t *ptr = (vid_info_t*)data;
757	if (ptr->size == sizeof(struct vid_info)) {
758	    ptr->m_num = sc->cur_scp->index;
759	    ptr->font_size = scp->font_size;
760	    ptr->mv_col = scp->xpos;
761	    ptr->mv_row = scp->ypos;
762	    ptr->mv_csz = scp->xsize;
763	    ptr->mv_rsz = scp->ysize;
764	    ptr->mv_hsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
765	    /*
766	     * The following fields are filled by the terminal emulator. XXX
767	     *
768	     * ptr->mv_norm.fore
769	     * ptr->mv_norm.back
770	     * ptr->mv_rev.fore
771	     * ptr->mv_rev.back
772	     */
773	    ptr->mv_grfc.fore = 0;      /* not supported */
774	    ptr->mv_grfc.back = 0;      /* not supported */
775	    ptr->mv_ovscan = scp->border;
776	    if (scp == sc->cur_scp)
777		save_kbd_state(scp);
778	    ptr->mk_keylock = scp->status & LOCK_MASK;
779	    return 0;
780	}
781	return EINVAL;
782    }
783
784    case CONS_GETVERS:  	/* get version number */
785	*(int*)data = 0x200;    /* version 2.0 */
786	return 0;
787
788    case CONS_IDLE:		/* see if the screen has been idle */
789	/*
790	 * When the screen is in the GRAPHICS_MODE or UNKNOWN_MODE,
791	 * the user process may have been writing something on the
792	 * screen and syscons is not aware of it. Declare the screen
793	 * is NOT idle if it is in one of these modes. But there is
794	 * an exception to it; if a screen saver is running in the
795	 * graphics mode in the current screen, we should say that the
796	 * screen has been idle.
797	 */
798	*(int *)data = (sc->flags & SC_SCRN_IDLE)
799		       && (!ISGRAPHSC(sc->cur_scp)
800			   || (sc->cur_scp->status & SAVER_RUNNING));
801	return 0;
802
803    case CONS_SAVERMODE:	/* set saver mode */
804	switch(*(int *)data) {
805	case CONS_NO_SAVER:
806	case CONS_USR_SAVER:
807	    /* if a LKM screen saver is running, stop it first. */
808	    scsplash_stick(FALSE);
809	    saver_mode = *(int *)data;
810	    s = spltty();
811#ifdef DEV_SPLASH
812	    if ((error = wait_scrn_saver_stop(NULL))) {
813		splx(s);
814		return error;
815	    }
816#endif
817	    run_scrn_saver = TRUE;
818	    if (saver_mode == CONS_USR_SAVER)
819		scp->status |= SAVER_RUNNING;
820	    else
821		scp->status &= ~SAVER_RUNNING;
822	    scsplash_stick(TRUE);
823	    splx(s);
824	    break;
825	case CONS_LKM_SAVER:
826	    s = spltty();
827	    if ((saver_mode == CONS_USR_SAVER) && (scp->status & SAVER_RUNNING))
828		scp->status &= ~SAVER_RUNNING;
829	    saver_mode = *(int *)data;
830	    splx(s);
831	    break;
832	default:
833	    return EINVAL;
834	}
835	return 0;
836
837    case CONS_SAVERSTART:	/* immediately start/stop the screen saver */
838	/*
839	 * Note that this ioctl does not guarantee the screen saver
840	 * actually starts or stops. It merely attempts to do so...
841	 */
842	s = spltty();
843	run_scrn_saver = (*(int *)data != 0);
844	if (run_scrn_saver)
845	    sc->scrn_time_stamp -= scrn_blank_time;
846	splx(s);
847	return 0;
848
849    case CONS_SCRSHOT:		/* get a screen shot */
850    {
851	int retval, hist_rsz;
852	size_t lsize, csize;
853	vm_offset_t frbp, hstp;
854	unsigned lnum;
855	scrshot_t *ptr = (scrshot_t *)data;
856	void *outp = ptr->buf;
857
858	s = spltty();
859	if (ISGRAPHSC(scp)) {
860	    splx(s);
861	    return EOPNOTSUPP;
862	}
863	hist_rsz = (scp->history != NULL) ? scp->history->vtb_rows : 0;
864	if ((ptr->x + ptr->xsize) > scp->xsize ||
865	    (ptr->y + ptr->ysize) > (scp->ysize + hist_rsz)) {
866	    splx(s);
867	    return EINVAL;
868	}
869
870	lsize = scp->xsize * sizeof(u_int16_t);
871	csize = ptr->xsize * sizeof(u_int16_t);
872	/* Pointer to the last line of framebuffer */
873	frbp = scp->vtb.vtb_buffer + scp->ysize * lsize + ptr->x *
874	       sizeof(u_int16_t);
875	/* Pointer to the last line of target buffer */
876	(vm_offset_t)outp += ptr->ysize * csize;
877	/* Pointer to the last line of history buffer */
878	if (scp->history != NULL)
879	    hstp = scp->history->vtb_buffer + sc_vtb_tail(scp->history) *
880		sizeof(u_int16_t) + ptr->x * sizeof(u_int16_t);
881	else
882	    hstp = 0;
883
884	retval = 0;
885	for (lnum = 0; lnum < (ptr->y + ptr->ysize); lnum++) {
886	    if (lnum < scp->ysize) {
887		frbp -= lsize;
888	    } else {
889		hstp -= lsize;
890		if (hstp < scp->history->vtb_buffer)
891		    hstp += scp->history->vtb_rows * lsize;
892		frbp = hstp;
893	    }
894	    if (lnum < ptr->y)
895		continue;
896	    (vm_offset_t)outp -= csize;
897	    retval = copyout((void *)frbp, outp, csize);
898	    if (retval != 0)
899		break;
900	}
901	splx(s);
902	return retval;
903    }
904
905    case VT_SETMODE:    	/* set screen switcher mode */
906    {
907	struct vt_mode *mode;
908	struct proc *p1;
909
910	mode = (struct vt_mode *)data;
911	DPRINTF(5, ("sc%d: VT_SETMODE ", sc->unit));
912	if (scp->smode.mode == VT_PROCESS) {
913	    p1 = pfind(scp->pid);
914    	    if (scp->proc == p1 && scp->proc != td->td_proc) {
915		if (p1)
916		    PROC_UNLOCK(p1);
917		DPRINTF(5, ("error EPERM\n"));
918		return EPERM;
919	    }
920	    if (p1)
921		PROC_UNLOCK(p1);
922	}
923	s = spltty();
924	if (mode->mode == VT_AUTO) {
925	    scp->smode.mode = VT_AUTO;
926	    scp->proc = NULL;
927	    scp->pid = 0;
928	    DPRINTF(5, ("VT_AUTO, "));
929	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
930		cons_unavail = FALSE;
931	    /* were we in the middle of the vty switching process? */
932	    if (finish_vt_rel(scp, TRUE, &s) == 0)
933		DPRINTF(5, ("reset WAIT_REL, "));
934	    if (finish_vt_acq(scp) == 0)
935		DPRINTF(5, ("reset WAIT_ACQ, "));
936	} else {
937	    if (!ISSIGVALID(mode->relsig) || !ISSIGVALID(mode->acqsig)
938		|| !ISSIGVALID(mode->frsig)) {
939		splx(s);
940		DPRINTF(5, ("error EINVAL\n"));
941		return EINVAL;
942	    }
943	    DPRINTF(5, ("VT_PROCESS %d, ", td->td_proc->p_pid));
944	    bcopy(data, &scp->smode, sizeof(struct vt_mode));
945	    scp->proc = td->td_proc;
946	    scp->pid = scp->proc->p_pid;
947	    if ((scp == sc->cur_scp) && (sc->unit == sc_console_unit))
948		cons_unavail = TRUE;
949	}
950	splx(s);
951	DPRINTF(5, ("\n"));
952	return 0;
953    }
954
955    case VT_GETMODE:    	/* get screen switcher mode */
956	bcopy(&scp->smode, data, sizeof(struct vt_mode));
957	return 0;
958
959    case VT_RELDISP:    	/* screen switcher ioctl */
960	s = spltty();
961	/*
962	 * This must be the current vty which is in the VT_PROCESS
963	 * switching mode...
964	 */
965	if ((scp != sc->cur_scp) || (scp->smode.mode != VT_PROCESS)) {
966	    splx(s);
967	    return EINVAL;
968	}
969	/* ...and this process is controlling it. */
970	if (scp->proc != td->td_proc) {
971	    splx(s);
972	    return EPERM;
973	}
974	error = EINVAL;
975	switch(*(intptr_t *)data) {
976	case VT_FALSE:  	/* user refuses to release screen, abort */
977	    if ((error = finish_vt_rel(scp, FALSE, &s)) == 0)
978		DPRINTF(5, ("sc%d: VT_FALSE\n", sc->unit));
979	    break;
980	case VT_TRUE:   	/* user has released screen, go on */
981	    if ((error = finish_vt_rel(scp, TRUE, &s)) == 0)
982		DPRINTF(5, ("sc%d: VT_TRUE\n", sc->unit));
983	    break;
984	case VT_ACKACQ: 	/* acquire acknowledged, switch completed */
985	    if ((error = finish_vt_acq(scp)) == 0)
986		DPRINTF(5, ("sc%d: VT_ACKACQ\n", sc->unit));
987	    break;
988	default:
989	    break;
990	}
991	splx(s);
992	return error;
993
994    case VT_OPENQRY:    	/* return free virtual console */
995	for (i = sc->first_vty; i < sc->first_vty + sc->vtys; i++) {
996	    tp = VIRTUAL_TTY(sc, i);
997	    if (!ISTTYOPEN(tp)) {
998		*(int *)data = i + 1;
999		return 0;
1000	    }
1001	}
1002	return EINVAL;
1003
1004    case VT_ACTIVATE:   	/* switch to screen *data */
1005	i = (*(intptr_t *)data == 0) ? scp->index : (*(intptr_t *)data - 1);
1006	s = spltty();
1007	sc_clean_up(sc->cur_scp);
1008	splx(s);
1009	return sc_switch_scr(sc, i);
1010
1011    case VT_WAITACTIVE: 	/* wait for switch to occur */
1012	i = (*(intptr_t *)data == 0) ? scp->index : (*(intptr_t *)data - 1);
1013	if ((i < sc->first_vty) || (i >= sc->first_vty + sc->vtys))
1014	    return EINVAL;
1015	s = spltty();
1016	error = sc_clean_up(sc->cur_scp);
1017	splx(s);
1018	if (error)
1019	    return error;
1020	scp = SC_STAT(SC_DEV(sc, i));
1021	if (scp == scp->sc->cur_scp)
1022	    return 0;
1023	while ((error=tsleep(&scp->smode, PZERO|PCATCH,
1024			     "waitvt", 0)) == ERESTART) ;
1025	return error;
1026
1027    case VT_GETACTIVE:		/* get active vty # */
1028	*(int *)data = sc->cur_scp->index + 1;
1029	return 0;
1030
1031    case VT_GETINDEX:		/* get this vty # */
1032	*(int *)data = scp->index + 1;
1033	return 0;
1034
1035    case VT_LOCKSWITCH:		/* prevent vty switching */
1036	if ((*(int *)data) & 0x01)
1037	    sc->flags |= SC_SCRN_VTYLOCK;
1038	else
1039	    sc->flags &= ~SC_SCRN_VTYLOCK;
1040	return 0;
1041
1042    case KDENABIO:      	/* allow io operations */
1043	error = suser(td);
1044	if (error != 0)
1045	    return error;
1046	error = securelevel_gt(td->td_ucred, 0);
1047	if (error != 0)
1048		return error;
1049#ifdef __i386__
1050	td->td_frame->tf_eflags |= PSL_IOPL;
1051#endif
1052	return 0;
1053
1054    case KDDISABIO:     	/* disallow io operations (default) */
1055#ifdef __i386__
1056	td->td_frame->tf_eflags &= ~PSL_IOPL;
1057#endif
1058	return 0;
1059
1060    case KDSKBSTATE:    	/* set keyboard state (locks) */
1061	if (*(int *)data & ~LOCK_MASK)
1062	    return EINVAL;
1063	scp->status &= ~LOCK_MASK;
1064	scp->status |= *(int *)data;
1065	if (scp == sc->cur_scp)
1066	    update_kbd_state(scp, scp->status, LOCK_MASK);
1067	return 0;
1068
1069    case KDGKBSTATE:    	/* get keyboard state (locks) */
1070	if (scp == sc->cur_scp)
1071	    save_kbd_state(scp);
1072	*(int *)data = scp->status & LOCK_MASK;
1073	return 0;
1074
1075    case KDGETREPEAT:      	/* get keyboard repeat & delay rates */
1076    case KDSETREPEAT:      	/* set keyboard repeat & delay rates (new) */
1077	error = kbd_ioctl(sc->kbd, cmd, data);
1078	if (error == ENOIOCTL)
1079	    error = ENODEV;
1080	return error;
1081
1082    case KDSETRAD:      	/* set keyboard repeat & delay rates (old) */
1083	if (*(int *)data & ~0x7f)
1084	    return EINVAL;
1085	error = kbd_ioctl(sc->kbd, cmd, data);
1086	if (error == ENOIOCTL)
1087	    error = ENODEV;
1088	return error;
1089
1090    case KDSKBMODE:     	/* set keyboard mode */
1091	switch (*(int *)data) {
1092	case K_XLATE:   	/* switch to XLT ascii mode */
1093	case K_RAW: 		/* switch to RAW scancode mode */
1094	case K_CODE: 		/* switch to CODE mode */
1095	    scp->kbd_mode = *(int *)data;
1096	    if (scp == sc->cur_scp)
1097		kbd_ioctl(sc->kbd, cmd, data);
1098	    return 0;
1099	default:
1100	    return EINVAL;
1101	}
1102	/* NOT REACHED */
1103
1104    case KDGKBMODE:     	/* get keyboard mode */
1105	*(int *)data = scp->kbd_mode;
1106	return 0;
1107
1108    case KDGKBINFO:
1109	error = kbd_ioctl(sc->kbd, cmd, data);
1110	if (error == ENOIOCTL)
1111	    error = ENODEV;
1112	return error;
1113
1114    case KDMKTONE:      	/* sound the bell */
1115	if (*(int*)data)
1116	    sc_bell(scp, (*(int*)data)&0xffff,
1117		    (((*(int*)data)>>16)&0xffff)*hz/1000);
1118	else
1119	    sc_bell(scp, scp->bell_pitch, scp->bell_duration);
1120	return 0;
1121
1122    case KIOCSOUND:     	/* make tone (*data) hz */
1123	if (scp == sc->cur_scp) {
1124	    if (*(int *)data)
1125		return sc_tone(*(int *)data);
1126	    else
1127		return sc_tone(0);
1128	}
1129	return 0;
1130
1131    case KDGKBTYPE:     	/* get keyboard type */
1132	error = kbd_ioctl(sc->kbd, cmd, data);
1133	if (error == ENOIOCTL) {
1134	    /* always return something? XXX */
1135	    *(int *)data = 0;
1136	}
1137	return 0;
1138
1139    case KDSETLED:      	/* set keyboard LED status */
1140	if (*(int *)data & ~LED_MASK)	/* FIXME: LOCK_MASK? */
1141	    return EINVAL;
1142	scp->status &= ~LED_MASK;
1143	scp->status |= *(int *)data;
1144	if (scp == sc->cur_scp)
1145	    update_kbd_leds(scp, scp->status);
1146	return 0;
1147
1148    case KDGETLED:      	/* get keyboard LED status */
1149	if (scp == sc->cur_scp)
1150	    save_kbd_state(scp);
1151	*(int *)data = scp->status & LED_MASK;
1152	return 0;
1153
1154    case CONS_SETKBD: 		/* set the new keyboard */
1155	{
1156	    keyboard_t *newkbd;
1157
1158	    s = spltty();
1159	    newkbd = kbd_get_keyboard(*(int *)data);
1160	    if (newkbd == NULL) {
1161		splx(s);
1162		return EINVAL;
1163	    }
1164	    error = 0;
1165	    if (sc->kbd != newkbd) {
1166		i = kbd_allocate(newkbd->kb_name, newkbd->kb_unit,
1167				 (void *)&sc->keyboard, sckbdevent, sc);
1168		/* i == newkbd->kb_index */
1169		if (i >= 0) {
1170		    if (sc->kbd != NULL) {
1171			save_kbd_state(sc->cur_scp);
1172			kbd_release(sc->kbd, (void *)&sc->keyboard);
1173		    }
1174		    sc->kbd = kbd_get_keyboard(i); /* sc->kbd == newkbd */
1175		    sc->keyboard = i;
1176		    kbd_ioctl(sc->kbd, KDSKBMODE,
1177			      (caddr_t)&sc->cur_scp->kbd_mode);
1178		    update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1179				     LOCK_MASK);
1180		} else {
1181		    error = EPERM;	/* XXX */
1182		}
1183	    }
1184	    splx(s);
1185	    return error;
1186	}
1187
1188    case CONS_RELKBD: 		/* release the current keyboard */
1189	s = spltty();
1190	error = 0;
1191	if (sc->kbd != NULL) {
1192	    save_kbd_state(sc->cur_scp);
1193	    error = kbd_release(sc->kbd, (void *)&sc->keyboard);
1194	    if (error == 0) {
1195		sc->kbd = NULL;
1196		sc->keyboard = -1;
1197	    }
1198	}
1199	splx(s);
1200	return error;
1201
1202    case CONS_GETTERM:		/* get the current terminal emulator info */
1203	{
1204	    sc_term_sw_t *sw;
1205
1206	    if (((term_info_t *)data)->ti_index == 0) {
1207		sw = scp->tsw;
1208	    } else {
1209		sw = sc_term_match_by_number(((term_info_t *)data)->ti_index);
1210	    }
1211	    if (sw != NULL) {
1212		strncpy(((term_info_t *)data)->ti_name, sw->te_name,
1213			sizeof(((term_info_t *)data)->ti_name));
1214		strncpy(((term_info_t *)data)->ti_desc, sw->te_desc,
1215			sizeof(((term_info_t *)data)->ti_desc));
1216		((term_info_t *)data)->ti_flags = 0;
1217		return 0;
1218	    } else {
1219		((term_info_t *)data)->ti_name[0] = '\0';
1220		((term_info_t *)data)->ti_desc[0] = '\0';
1221		((term_info_t *)data)->ti_flags = 0;
1222		return EINVAL;
1223	    }
1224	}
1225
1226    case CONS_SETTERM:		/* set the current terminal emulator */
1227	s = spltty();
1228	error = sc_init_emulator(scp, ((term_info_t *)data)->ti_name);
1229	/* FIXME: what if scp == sc_console! XXX */
1230	splx(s);
1231	return error;
1232
1233    case GIO_SCRNMAP:   	/* get output translation table */
1234	bcopy(&sc->scr_map, data, sizeof(sc->scr_map));
1235	return 0;
1236
1237    case PIO_SCRNMAP:   	/* set output translation table */
1238	bcopy(data, &sc->scr_map, sizeof(sc->scr_map));
1239	for (i=0; i<sizeof(sc->scr_map); i++) {
1240	    sc->scr_rmap[sc->scr_map[i]] = i;
1241	}
1242	return 0;
1243
1244    case GIO_KEYMAP:		/* get keyboard translation table */
1245    case PIO_KEYMAP:		/* set keyboard translation table */
1246    case GIO_DEADKEYMAP:	/* get accent key translation table */
1247    case PIO_DEADKEYMAP:	/* set accent key translation table */
1248    case GETFKEY:		/* get function key string */
1249    case SETFKEY:		/* set function key string */
1250	error = kbd_ioctl(sc->kbd, cmd, data);
1251	if (error == ENOIOCTL)
1252	    error = ENODEV;
1253	return error;
1254
1255#ifndef SC_NO_FONT_LOADING
1256
1257    case PIO_FONT8x8:   	/* set 8x8 dot font */
1258	if (!ISFONTAVAIL(sc->adp->va_flags))
1259	    return ENXIO;
1260	bcopy(data, sc->font_8, 8*256);
1261	sc->fonts_loaded |= FONT_8;
1262	/*
1263	 * FONT KLUDGE
1264	 * Always use the font page #0. XXX
1265	 * Don't load if the current font size is not 8x8.
1266	 */
1267	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size < 14))
1268	    sc_load_font(sc->cur_scp, 0, 8, sc->font_8, 0, 256);
1269	return 0;
1270
1271    case GIO_FONT8x8:   	/* get 8x8 dot font */
1272	if (!ISFONTAVAIL(sc->adp->va_flags))
1273	    return ENXIO;
1274	if (sc->fonts_loaded & FONT_8) {
1275	    bcopy(sc->font_8, data, 8*256);
1276	    return 0;
1277	}
1278	else
1279	    return ENXIO;
1280
1281    case PIO_FONT8x14:  	/* set 8x14 dot font */
1282	if (!ISFONTAVAIL(sc->adp->va_flags))
1283	    return ENXIO;
1284	bcopy(data, sc->font_14, 14*256);
1285	sc->fonts_loaded |= FONT_14;
1286	/*
1287	 * FONT KLUDGE
1288	 * Always use the font page #0. XXX
1289	 * Don't load if the current font size is not 8x14.
1290	 */
1291	if (ISTEXTSC(sc->cur_scp)
1292	    && (sc->cur_scp->font_size >= 14)
1293	    && (sc->cur_scp->font_size < 16))
1294	    sc_load_font(sc->cur_scp, 0, 14, sc->font_14, 0, 256);
1295	return 0;
1296
1297    case GIO_FONT8x14:  	/* get 8x14 dot font */
1298	if (!ISFONTAVAIL(sc->adp->va_flags))
1299	    return ENXIO;
1300	if (sc->fonts_loaded & FONT_14) {
1301	    bcopy(sc->font_14, data, 14*256);
1302	    return 0;
1303	}
1304	else
1305	    return ENXIO;
1306
1307    case PIO_FONT8x16:  	/* set 8x16 dot font */
1308	if (!ISFONTAVAIL(sc->adp->va_flags))
1309	    return ENXIO;
1310	bcopy(data, sc->font_16, 16*256);
1311	sc->fonts_loaded |= FONT_16;
1312	/*
1313	 * FONT KLUDGE
1314	 * Always use the font page #0. XXX
1315	 * Don't load if the current font size is not 8x16.
1316	 */
1317	if (ISTEXTSC(sc->cur_scp) && (sc->cur_scp->font_size >= 16))
1318	    sc_load_font(sc->cur_scp, 0, 16, sc->font_16, 0, 256);
1319	return 0;
1320
1321    case GIO_FONT8x16:  	/* get 8x16 dot font */
1322	if (!ISFONTAVAIL(sc->adp->va_flags))
1323	    return ENXIO;
1324	if (sc->fonts_loaded & FONT_16) {
1325	    bcopy(sc->font_16, data, 16*256);
1326	    return 0;
1327	}
1328	else
1329	    return ENXIO;
1330
1331#endif /* SC_NO_FONT_LOADING */
1332
1333    default:
1334	break;
1335    }
1336
1337    error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, td);
1338    if (error != ENOIOCTL)
1339	return(error);
1340    error = ttioctl(tp, cmd, data, flag);
1341    if (error != ENOIOCTL)
1342	return(error);
1343    return(ENOTTY);
1344}
1345
1346static void
1347scstart(struct tty *tp)
1348{
1349    struct clist *rbp;
1350    int s, len;
1351    u_char buf[PCBURST];
1352    scr_stat *scp = SC_STAT(tp->t_dev);
1353
1354    if (scp->status & SLKED || scp->sc->blink_in_progress)
1355	return;
1356    s = spltty();
1357    if (!(tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))) {
1358	tp->t_state |= TS_BUSY;
1359	rbp = &tp->t_outq;
1360	while (rbp->c_cc) {
1361	    len = q_to_b(rbp, buf, PCBURST);
1362	    splx(s);
1363	    sc_puts(scp, buf, len);
1364	    s = spltty();
1365	}
1366	tp->t_state &= ~TS_BUSY;
1367	ttwwakeup(tp);
1368    }
1369    splx(s);
1370}
1371
1372static void
1373sccnprobe(struct consdev *cp)
1374{
1375#if __i386__ || __ia64__ || __amd64__ || __sparc64__
1376    int unit;
1377    int flags;
1378
1379    cp->cn_pri = sc_get_cons_priority(&unit, &flags);
1380
1381    /* a video card is always required */
1382    if (!scvidprobe(unit, flags, TRUE))
1383	cp->cn_pri = CN_DEAD;
1384
1385    /* syscons will become console even when there is no keyboard */
1386    sckbdprobe(unit, flags, TRUE);
1387
1388    if (cp->cn_pri == CN_DEAD)
1389	return;
1390
1391    /* initialize required fields */
1392    cp->cn_dev = makedev(CDEV_MAJOR, SC_CONSOLECTL);
1393#endif /* __i386__ || __ia64__ || __amd64__ || __sparc64__ */
1394
1395#if __alpha__
1396    /*
1397     * alpha use sccnattach() rather than cnprobe()/cninit()/cnterm()
1398     * interface to install the console.  Always return CN_DEAD from
1399     * here.
1400     */
1401    cp->cn_pri = CN_DEAD;
1402#endif /* __alpha__ */
1403}
1404
1405static void
1406sccninit(struct consdev *cp)
1407{
1408#if __i386__ || __ia64__ || __amd64__ || __sparc64__
1409    int unit;
1410    int flags;
1411
1412    sc_get_cons_priority(&unit, &flags);
1413    scinit(unit, flags | SC_KERNEL_CONSOLE);
1414    sc_console_unit = unit;
1415    sc_console = SC_STAT(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1416#endif /* __i386__ || __ia64__ || __amd64__ || __sparc64__ */
1417
1418#if __alpha__
1419    /* SHOULDN'T REACH HERE */
1420#endif /* __alpha__ */
1421}
1422
1423static void
1424sccnterm(struct consdev *cp)
1425{
1426    /* we are not the kernel console any more, release everything */
1427
1428    if (sc_console_unit < 0)
1429	return;			/* shouldn't happen */
1430
1431#if __i386__ || __ia64__ || __amd64__ || __sparc64__
1432#if 0 /* XXX */
1433    sc_clear_screen(sc_console);
1434    sccnupdate(sc_console);
1435#endif
1436    scterm(sc_console_unit, SC_KERNEL_CONSOLE);
1437    sc_console_unit = -1;
1438    sc_console = NULL;
1439#endif /* __i386__ || __ia64__ || __amd64__ || __sparc64__ */
1440
1441#if __alpha__
1442    /* do nothing XXX */
1443#endif /* __alpha__ */
1444}
1445
1446#ifdef __alpha__
1447
1448void
1449sccnattach(void)
1450{
1451    static struct consdev consdev;
1452    int unit;
1453    int flags;
1454
1455    bcopy(&sc_consdev, &consdev, sizeof(sc_consdev));
1456    consdev.cn_pri = sc_get_cons_priority(&unit, &flags);
1457
1458    /* a video card is always required */
1459    if (!scvidprobe(unit, flags, TRUE))
1460	consdev.cn_pri = CN_DEAD;
1461
1462    /* alpha doesn't allow the console being without a keyboard... Why? */
1463    if (!sckbdprobe(unit, flags, TRUE))
1464	consdev.cn_pri = CN_DEAD;
1465
1466    if (consdev.cn_pri == CN_DEAD)
1467	return;
1468
1469    scinit(unit, flags | SC_KERNEL_CONSOLE);
1470    sc_console_unit = unit;
1471    sc_console = SC_STAT(sc_get_softc(unit, SC_KERNEL_CONSOLE)->dev[0]);
1472    consdev.cn_dev = makedev(CDEV_MAJOR, 0);
1473    cnadd(&consdev);
1474}
1475
1476#endif /* __alpha__ */
1477
1478static void
1479sccnputc(struct consdev *cd, int c)
1480{
1481    u_char buf[1];
1482    scr_stat *scp = sc_console;
1483    void *save;
1484#ifndef SC_NO_HISTORY
1485    struct tty *tp;
1486#endif /* !SC_NO_HISTORY */
1487    int s;
1488
1489    /* assert(sc_console != NULL) */
1490
1491#ifndef SC_NO_HISTORY
1492    if (scp == scp->sc->cur_scp && scp->status & SLKED) {
1493	scp->status &= ~SLKED;
1494	update_kbd_state(scp, scp->status, SLKED);
1495	if (scp->status & BUFFER_SAVED) {
1496	    if (!sc_hist_restore(scp))
1497		sc_remove_cutmarking(scp);
1498	    scp->status &= ~BUFFER_SAVED;
1499	    scp->status |= CURSOR_ENABLED;
1500	    sc_draw_cursor_image(scp);
1501	}
1502	tp = VIRTUAL_TTY(scp->sc, scp->index);
1503	if (ISTTYOPEN(tp))
1504	    scstart(tp);
1505    }
1506#endif /* !SC_NO_HISTORY */
1507
1508    save = scp->ts;
1509    if (kernel_console_ts != NULL)
1510	scp->ts = kernel_console_ts;
1511    buf[0] = c;
1512    sc_puts(scp, buf, 1);
1513    scp->ts = save;
1514
1515    s = spltty();	/* block sckbdevent and scrn_timer */
1516    sccnupdate(scp);
1517    splx(s);
1518}
1519
1520static int
1521sccngetc(struct consdev *cd)
1522{
1523    return sccngetch(0);
1524}
1525
1526static int
1527sccncheckc(struct consdev *cd)
1528{
1529    return sccngetch(SCGETC_NONBLOCK);
1530}
1531
1532static void
1533sccndbctl(struct consdev *cd, int on)
1534{
1535    /* assert(sc_console_unit >= 0) */
1536    /* try to switch to the kernel console screen */
1537    if (on && debugger == 0) {
1538	/*
1539	 * TRY to make sure the screen saver is stopped,
1540	 * and the screen is updated before switching to
1541	 * the vty0.
1542	 */
1543	scrn_timer(NULL);
1544	if (!cold
1545	    && sc_console->sc->cur_scp->smode.mode == VT_AUTO
1546	    && sc_console->smode.mode == VT_AUTO) {
1547	    sc_console->sc->cur_scp->status |= MOUSE_HIDDEN;
1548	    ++debugger;		/* XXX */
1549#ifdef DDB
1550	    /* unlock vty switching */
1551	    sc_console->sc->flags &= ~SC_SCRN_VTYLOCK;
1552#endif
1553	    sc_switch_scr(sc_console->sc, sc_console->index);
1554	    --debugger;		/* XXX */
1555	}
1556    }
1557    if (on)
1558	++debugger;
1559    else
1560	--debugger;
1561}
1562
1563static int
1564sccngetch(int flags)
1565{
1566    static struct fkeytab fkey;
1567    static int fkeycp;
1568    scr_stat *scp;
1569    u_char *p;
1570    int cur_mode;
1571    int s = spltty();	/* block sckbdevent and scrn_timer while we poll */
1572    int c;
1573
1574    /* assert(sc_console != NULL) */
1575
1576    /*
1577     * Stop the screen saver and update the screen if necessary.
1578     * What if we have been running in the screen saver code... XXX
1579     */
1580    sc_touch_scrn_saver();
1581    scp = sc_console->sc->cur_scp;	/* XXX */
1582    sccnupdate(scp);
1583
1584    if (fkeycp < fkey.len) {
1585	splx(s);
1586	return fkey.str[fkeycp++];
1587    }
1588
1589    if (scp->sc->kbd == NULL) {
1590	splx(s);
1591	return -1;
1592    }
1593
1594    /*
1595     * Make sure the keyboard is accessible even when the kbd device
1596     * driver is disabled.
1597     */
1598    kbd_enable(scp->sc->kbd);
1599
1600    /* we shall always use the keyboard in the XLATE mode here */
1601    cur_mode = scp->kbd_mode;
1602    scp->kbd_mode = K_XLATE;
1603    kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1604
1605    kbd_poll(scp->sc->kbd, TRUE);
1606    c = scgetc(scp->sc, SCGETC_CN | flags);
1607    kbd_poll(scp->sc->kbd, FALSE);
1608
1609    scp->kbd_mode = cur_mode;
1610    kbd_ioctl(scp->sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
1611    kbd_disable(scp->sc->kbd);
1612    splx(s);
1613
1614    switch (KEYFLAGS(c)) {
1615    case 0:	/* normal char */
1616	return KEYCHAR(c);
1617    case FKEY:	/* function key */
1618	p = kbd_get_fkeystr(scp->sc->kbd, KEYCHAR(c), (size_t *)&fkeycp);
1619	fkey.len = fkeycp;
1620	if ((p != NULL) && (fkey.len > 0)) {
1621	    bcopy(p, fkey.str, fkey.len);
1622	    fkeycp = 1;
1623	    return fkey.str[0];
1624	}
1625	return c;	/* XXX */
1626    case NOKEY:
1627    case ERRKEY:
1628    default:
1629	return -1;
1630    }
1631    /* NOT REACHED */
1632}
1633
1634static void
1635sccnupdate(scr_stat *scp)
1636{
1637    /* this is a cut-down version of scrn_timer()... */
1638
1639    if (scp->sc->font_loading_in_progress || scp->sc->videoio_in_progress)
1640	return;
1641
1642    if (debugger > 0 || panicstr || shutdown_in_progress) {
1643	sc_touch_scrn_saver();
1644    } else if (scp != scp->sc->cur_scp) {
1645	return;
1646    }
1647
1648    if (!run_scrn_saver)
1649	scp->sc->flags &= ~SC_SCRN_IDLE;
1650#ifdef DEV_SPLASH
1651    if ((saver_mode != CONS_LKM_SAVER) || !(scp->sc->flags & SC_SCRN_IDLE))
1652	if (scp->sc->flags & SC_SCRN_BLANKED)
1653            stop_scrn_saver(scp->sc, current_saver);
1654#endif
1655
1656    if (scp != scp->sc->cur_scp || scp->sc->blink_in_progress
1657	|| scp->sc->switch_in_progress)
1658	return;
1659    /*
1660     * FIXME: unlike scrn_timer(), we call scrn_update() from here even
1661     * when write_in_progress is non-zero.  XXX
1662     */
1663
1664    if (!ISGRAPHSC(scp) && !(scp->sc->flags & SC_SCRN_BLANKED))
1665	scrn_update(scp, TRUE);
1666}
1667
1668static void
1669scrn_timer(void *arg)
1670{
1671    static int kbd_interval = 0;
1672    struct timeval tv;
1673    sc_softc_t *sc;
1674    scr_stat *scp;
1675    int again;
1676    int s;
1677
1678    again = (arg != NULL);
1679    if (arg != NULL)
1680	sc = (sc_softc_t *)arg;
1681    else if (sc_console != NULL)
1682	sc = sc_console->sc;
1683    else
1684	return;
1685
1686    /* don't do anything when we are performing some I/O operations */
1687    if (sc->font_loading_in_progress || sc->videoio_in_progress) {
1688	if (again)
1689	    timeout(scrn_timer, sc, hz / 10);
1690	return;
1691    }
1692    s = spltty();
1693
1694    if ((sc->kbd == NULL) && (sc->config & SC_AUTODETECT_KBD)) {
1695	/* try to allocate a keyboard automatically */
1696	if (++kbd_interval >= 25) {
1697	    sc->keyboard = kbd_allocate("*", -1, (void *)&sc->keyboard,
1698					sckbdevent, sc);
1699	    if (sc->keyboard >= 0) {
1700		sc->kbd = kbd_get_keyboard(sc->keyboard);
1701		kbd_ioctl(sc->kbd, KDSKBMODE,
1702			  (caddr_t)&sc->cur_scp->kbd_mode);
1703		update_kbd_state(sc->cur_scp, sc->cur_scp->status,
1704				 LOCK_MASK);
1705	    }
1706	    kbd_interval = 0;
1707	}
1708    }
1709
1710    /* find the vty to update */
1711    scp = sc->cur_scp;
1712
1713    /* should we stop the screen saver? */
1714    getmicrouptime(&tv);
1715    if (debugger > 0 || panicstr || shutdown_in_progress)
1716	sc_touch_scrn_saver();
1717    if (run_scrn_saver) {
1718	if (tv.tv_sec > sc->scrn_time_stamp + scrn_blank_time)
1719	    sc->flags |= SC_SCRN_IDLE;
1720	else
1721	    sc->flags &= ~SC_SCRN_IDLE;
1722    } else {
1723	sc->scrn_time_stamp = tv.tv_sec;
1724	sc->flags &= ~SC_SCRN_IDLE;
1725	if (scrn_blank_time > 0)
1726	    run_scrn_saver = TRUE;
1727    }
1728#ifdef DEV_SPLASH
1729    if ((saver_mode != CONS_LKM_SAVER) || !(sc->flags & SC_SCRN_IDLE))
1730	if (sc->flags & SC_SCRN_BLANKED)
1731            stop_scrn_saver(sc, current_saver);
1732#endif
1733
1734    /* should we just return ? */
1735    if (sc->blink_in_progress || sc->switch_in_progress
1736	|| sc->write_in_progress) {
1737	if (again)
1738	    timeout(scrn_timer, sc, hz / 10);
1739	splx(s);
1740	return;
1741    }
1742
1743    /* Update the screen */
1744    scp = sc->cur_scp;		/* cur_scp may have changed... */
1745    if (!ISGRAPHSC(scp) && !(sc->flags & SC_SCRN_BLANKED))
1746	scrn_update(scp, TRUE);
1747
1748#ifdef DEV_SPLASH
1749    /* should we activate the screen saver? */
1750    if ((saver_mode == CONS_LKM_SAVER) && (sc->flags & SC_SCRN_IDLE))
1751	if (!ISGRAPHSC(scp) || (sc->flags & SC_SCRN_BLANKED))
1752	    (*current_saver)(sc, TRUE);
1753#endif
1754
1755    if (again)
1756	timeout(scrn_timer, sc, hz / 25);
1757    splx(s);
1758}
1759
1760static int
1761and_region(int *s1, int *e1, int s2, int e2)
1762{
1763    if (*e1 < s2 || e2 < *s1)
1764	return FALSE;
1765    *s1 = imax(*s1, s2);
1766    *e1 = imin(*e1, e2);
1767    return TRUE;
1768}
1769
1770static void
1771scrn_update(scr_stat *scp, int show_cursor)
1772{
1773    int start;
1774    int end;
1775    int s;
1776    int e;
1777
1778    /* assert(scp == scp->sc->cur_scp) */
1779
1780    ++scp->sc->videoio_in_progress;
1781
1782#ifndef SC_NO_CUTPASTE
1783    /* remove the previous mouse pointer image if necessary */
1784    if (scp->status & MOUSE_VISIBLE) {
1785	s = scp->mouse_pos;
1786	e = scp->mouse_pos + scp->xsize + 1;
1787	if ((scp->status & (MOUSE_MOVED | MOUSE_HIDDEN))
1788	    || and_region(&s, &e, scp->start, scp->end)
1789	    || ((scp->status & CURSOR_ENABLED) &&
1790		(scp->cursor_pos != scp->cursor_oldpos) &&
1791		(and_region(&s, &e, scp->cursor_pos, scp->cursor_pos)
1792		 || and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos)))) {
1793	    sc_remove_mouse_image(scp);
1794	    if (scp->end >= scp->xsize*scp->ysize)
1795		scp->end = scp->xsize*scp->ysize - 1;
1796	}
1797    }
1798#endif /* !SC_NO_CUTPASTE */
1799
1800#if 1
1801    /* debug: XXX */
1802    if (scp->end >= scp->xsize*scp->ysize) {
1803	printf("scrn_update(): scp->end %d > size_of_screen!!\n", scp->end);
1804	scp->end = scp->xsize*scp->ysize - 1;
1805    }
1806    if (scp->start < 0) {
1807	printf("scrn_update(): scp->start %d < 0\n", scp->start);
1808	scp->start = 0;
1809    }
1810#endif
1811
1812    /* update screen image */
1813    if (scp->start <= scp->end)  {
1814	if (scp->mouse_cut_end >= 0) {
1815	    /* there is a marked region for cut & paste */
1816	    if (scp->mouse_cut_start <= scp->mouse_cut_end) {
1817		start = scp->mouse_cut_start;
1818		end = scp->mouse_cut_end;
1819	    } else {
1820		start = scp->mouse_cut_end;
1821		end = scp->mouse_cut_start - 1;
1822	    }
1823	    s = start;
1824	    e = end;
1825	    /* does the cut-mark region overlap with the update region? */
1826	    if (and_region(&s, &e, scp->start, scp->end)) {
1827		(*scp->rndr->draw)(scp, s, e - s + 1, TRUE);
1828		s = 0;
1829		e = start - 1;
1830		if (and_region(&s, &e, scp->start, scp->end))
1831		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
1832		s = end + 1;
1833		e = scp->xsize*scp->ysize - 1;
1834		if (and_region(&s, &e, scp->start, scp->end))
1835		    (*scp->rndr->draw)(scp, s, e - s + 1, FALSE);
1836	    } else {
1837		(*scp->rndr->draw)(scp, scp->start,
1838				   scp->end - scp->start + 1, FALSE);
1839	    }
1840	} else {
1841	    (*scp->rndr->draw)(scp, scp->start,
1842			       scp->end - scp->start + 1, FALSE);
1843	}
1844    }
1845
1846    /* we are not to show the cursor and the mouse pointer... */
1847    if (!show_cursor) {
1848        scp->end = 0;
1849        scp->start = scp->xsize*scp->ysize - 1;
1850	--scp->sc->videoio_in_progress;
1851	return;
1852    }
1853
1854    /* update cursor image */
1855    if (scp->status & CURSOR_ENABLED) {
1856	s = scp->start;
1857	e = scp->end;
1858        /* did cursor move since last time ? */
1859        if (scp->cursor_pos != scp->cursor_oldpos) {
1860            /* do we need to remove old cursor image ? */
1861            if (!and_region(&s, &e, scp->cursor_oldpos, scp->cursor_oldpos))
1862                sc_remove_cursor_image(scp);
1863            sc_draw_cursor_image(scp);
1864        } else {
1865            if (and_region(&s, &e, scp->cursor_pos, scp->cursor_pos))
1866		/* cursor didn't move, but has been overwritten */
1867		sc_draw_cursor_image(scp);
1868	    else if (scp->curs_attr.flags & CONS_BLINK_CURSOR)
1869		/* if it's a blinking cursor, update it */
1870		(*scp->rndr->blink_cursor)(scp, scp->cursor_pos,
1871					   sc_inside_cutmark(scp,
1872					       scp->cursor_pos));
1873        }
1874    }
1875
1876#ifndef SC_NO_CUTPASTE
1877    /* update "pseudo" mouse pointer image */
1878    if (scp->sc->flags & SC_MOUSE_ENABLED) {
1879	if (!(scp->status & (MOUSE_VISIBLE | MOUSE_HIDDEN))) {
1880	    scp->status &= ~MOUSE_MOVED;
1881	    sc_draw_mouse_image(scp);
1882	}
1883    }
1884#endif /* SC_NO_CUTPASTE */
1885
1886    scp->end = 0;
1887    scp->start = scp->xsize*scp->ysize - 1;
1888
1889    --scp->sc->videoio_in_progress;
1890}
1891
1892#ifdef DEV_SPLASH
1893static int
1894scsplash_callback(int event, void *arg)
1895{
1896    sc_softc_t *sc;
1897    int error;
1898
1899    sc = (sc_softc_t *)arg;
1900
1901    switch (event) {
1902    case SPLASH_INIT:
1903	if (add_scrn_saver(scsplash_saver) == 0) {
1904	    sc->flags &= ~SC_SAVER_FAILED;
1905	    run_scrn_saver = TRUE;
1906	    if (cold && !(boothowto & (RB_VERBOSE | RB_CONFIG))) {
1907		scsplash_stick(TRUE);
1908		(*current_saver)(sc, TRUE);
1909	    }
1910	}
1911	return 0;
1912
1913    case SPLASH_TERM:
1914	if (current_saver == scsplash_saver) {
1915	    scsplash_stick(FALSE);
1916	    error = remove_scrn_saver(scsplash_saver);
1917	    if (error)
1918		return error;
1919	}
1920	return 0;
1921
1922    default:
1923	return EINVAL;
1924    }
1925}
1926
1927static void
1928scsplash_saver(sc_softc_t *sc, int show)
1929{
1930    static int busy = FALSE;
1931    scr_stat *scp;
1932
1933    if (busy)
1934	return;
1935    busy = TRUE;
1936
1937    scp = sc->cur_scp;
1938    if (show) {
1939	if (!(sc->flags & SC_SAVER_FAILED)) {
1940	    if (!(sc->flags & SC_SCRN_BLANKED))
1941		set_scrn_saver_mode(scp, -1, NULL, 0);
1942	    switch (splash(sc->adp, TRUE)) {
1943	    case 0:		/* succeeded */
1944		break;
1945	    case EAGAIN:	/* try later */
1946		restore_scrn_saver_mode(scp, FALSE);
1947		sc_touch_scrn_saver();		/* XXX */
1948		break;
1949	    default:
1950		sc->flags |= SC_SAVER_FAILED;
1951		scsplash_stick(FALSE);
1952		restore_scrn_saver_mode(scp, TRUE);
1953		printf("scsplash_saver(): failed to put up the image\n");
1954		break;
1955	    }
1956	}
1957    } else if (!sticky_splash) {
1958	if ((sc->flags & SC_SCRN_BLANKED) && (splash(sc->adp, FALSE) == 0))
1959	    restore_scrn_saver_mode(scp, TRUE);
1960    }
1961    busy = FALSE;
1962}
1963
1964static int
1965add_scrn_saver(void (*this_saver)(sc_softc_t *, int))
1966{
1967#if 0
1968    int error;
1969
1970    if (current_saver != none_saver) {
1971	error = remove_scrn_saver(current_saver);
1972	if (error)
1973	    return error;
1974    }
1975#endif
1976    if (current_saver != none_saver)
1977	return EBUSY;
1978
1979    run_scrn_saver = FALSE;
1980    saver_mode = CONS_LKM_SAVER;
1981    current_saver = this_saver;
1982    return 0;
1983}
1984
1985static int
1986remove_scrn_saver(void (*this_saver)(sc_softc_t *, int))
1987{
1988    if (current_saver != this_saver)
1989	return EINVAL;
1990
1991#if 0
1992    /*
1993     * In order to prevent `current_saver' from being called by
1994     * the timeout routine `scrn_timer()' while we manipulate
1995     * the saver list, we shall set `current_saver' to `none_saver'
1996     * before stopping the current saver, rather than blocking by `splXX()'.
1997     */
1998    current_saver = none_saver;
1999    if (scrn_blanked)
2000        stop_scrn_saver(this_saver);
2001#endif
2002
2003    /* unblank all blanked screens */
2004    wait_scrn_saver_stop(NULL);
2005    if (scrn_blanked)
2006	return EBUSY;
2007
2008    current_saver = none_saver;
2009    return 0;
2010}
2011
2012static int
2013set_scrn_saver_mode(scr_stat *scp, int mode, u_char *pal, int border)
2014{
2015    int s;
2016
2017    /* assert(scp == scp->sc->cur_scp) */
2018    s = spltty();
2019    if (!ISGRAPHSC(scp))
2020	sc_remove_cursor_image(scp);
2021    scp->splash_save_mode = scp->mode;
2022    scp->splash_save_status = scp->status & (GRAPHICS_MODE | PIXEL_MODE);
2023    scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE);
2024    scp->status |= (UNKNOWN_MODE | SAVER_RUNNING);
2025    scp->sc->flags |= SC_SCRN_BLANKED;
2026    ++scrn_blanked;
2027    splx(s);
2028    if (mode < 0)
2029	return 0;
2030    scp->mode = mode;
2031    if (set_mode(scp) == 0) {
2032	if (scp->sc->adp->va_info.vi_flags & V_INFO_GRAPHICS)
2033	    scp->status |= GRAPHICS_MODE;
2034#ifndef SC_NO_PALETTE_LOADING
2035	if (pal != NULL)
2036	    load_palette(scp->sc->adp, pal);
2037#endif
2038	sc_set_border(scp, border);
2039	return 0;
2040    } else {
2041	s = spltty();
2042	scp->mode = scp->splash_save_mode;
2043	scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2044	scp->status |= scp->splash_save_status;
2045	splx(s);
2046	return 1;
2047    }
2048}
2049
2050static int
2051restore_scrn_saver_mode(scr_stat *scp, int changemode)
2052{
2053    int mode;
2054    int status;
2055    int s;
2056
2057    /* assert(scp == scp->sc->cur_scp) */
2058    s = spltty();
2059    mode = scp->mode;
2060    status = scp->status;
2061    scp->mode = scp->splash_save_mode;
2062    scp->status &= ~(UNKNOWN_MODE | SAVER_RUNNING);
2063    scp->status |= scp->splash_save_status;
2064    scp->sc->flags &= ~SC_SCRN_BLANKED;
2065    if (!changemode) {
2066	if (!ISGRAPHSC(scp))
2067	    sc_draw_cursor_image(scp);
2068	--scrn_blanked;
2069	splx(s);
2070	return 0;
2071    }
2072    if (set_mode(scp) == 0) {
2073#ifndef SC_NO_PALETTE_LOADING
2074	load_palette(scp->sc->adp, scp->sc->palette);
2075#endif
2076	--scrn_blanked;
2077	splx(s);
2078	return 0;
2079    } else {
2080	scp->mode = mode;
2081	scp->status = status;
2082	splx(s);
2083	return 1;
2084    }
2085}
2086
2087static void
2088stop_scrn_saver(sc_softc_t *sc, void (*saver)(sc_softc_t *, int))
2089{
2090    (*saver)(sc, FALSE);
2091    run_scrn_saver = FALSE;
2092    /* the screen saver may have chosen not to stop after all... */
2093    if (sc->flags & SC_SCRN_BLANKED)
2094	return;
2095
2096    mark_all(sc->cur_scp);
2097    if (sc->delayed_next_scr)
2098	sc_switch_scr(sc, sc->delayed_next_scr - 1);
2099    if (debugger == 0)
2100	wakeup(&scrn_blanked);
2101}
2102
2103static int
2104wait_scrn_saver_stop(sc_softc_t *sc)
2105{
2106    int error = 0;
2107
2108    while (scrn_blanked > 0) {
2109	run_scrn_saver = FALSE;
2110	if (sc && !(sc->flags & SC_SCRN_BLANKED)) {
2111	    error = 0;
2112	    break;
2113	}
2114	error = tsleep(&scrn_blanked, PZERO | PCATCH, "scrsav", 0);
2115	if ((error != 0) && (error != ERESTART))
2116	    break;
2117    }
2118    run_scrn_saver = FALSE;
2119    return error;
2120}
2121#endif /* DEV_SPLASH */
2122
2123void
2124sc_touch_scrn_saver(void)
2125{
2126    scsplash_stick(FALSE);
2127    run_scrn_saver = FALSE;
2128}
2129
2130int
2131sc_switch_scr(sc_softc_t *sc, u_int next_scr)
2132{
2133    scr_stat *cur_scp;
2134    struct tty *tp;
2135    struct proc *p;
2136    int s;
2137
2138    DPRINTF(5, ("sc0: sc_switch_scr() %d ", next_scr + 1));
2139
2140    /* prevent switch if previously requested */
2141    if (sc->flags & SC_SCRN_VTYLOCK) {
2142	    sc_bell(sc->cur_scp, sc->cur_scp->bell_pitch,
2143		sc->cur_scp->bell_duration);
2144	    return EPERM;
2145    }
2146
2147    /* delay switch if the screen is blanked or being updated */
2148    if ((sc->flags & SC_SCRN_BLANKED) || sc->write_in_progress
2149	|| sc->blink_in_progress || sc->videoio_in_progress) {
2150	sc->delayed_next_scr = next_scr + 1;
2151	sc_touch_scrn_saver();
2152	DPRINTF(5, ("switch delayed\n"));
2153	return 0;
2154    }
2155
2156    s = spltty();
2157    cur_scp = sc->cur_scp;
2158
2159    /* we are in the middle of the vty switching process... */
2160    if (sc->switch_in_progress
2161	&& (cur_scp->smode.mode == VT_PROCESS)
2162	&& cur_scp->proc) {
2163	p = pfind(cur_scp->pid);
2164	if (cur_scp->proc != p) {
2165	    if (p)
2166		PROC_UNLOCK(p);
2167	    /*
2168	     * The controlling process has died!!.  Do some clean up.
2169	     * NOTE:`cur_scp->proc' and `cur_scp->smode.mode'
2170	     * are not reset here yet; they will be cleared later.
2171	     */
2172	    DPRINTF(5, ("cur_scp controlling process %d died, ",
2173	       cur_scp->pid));
2174	    if (cur_scp->status & SWITCH_WAIT_REL) {
2175		/*
2176		 * Force the previous switch to finish, but return now
2177		 * with error.
2178		 */
2179		DPRINTF(5, ("reset WAIT_REL, "));
2180		finish_vt_rel(cur_scp, TRUE, &s);
2181		splx(s);
2182		DPRINTF(5, ("finishing previous switch\n"));
2183		return EINVAL;
2184	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2185		/* let's assume screen switch has been completed. */
2186		DPRINTF(5, ("reset WAIT_ACQ, "));
2187		finish_vt_acq(cur_scp);
2188	    } else {
2189		/*
2190	 	 * We are in between screen release and acquisition, and
2191		 * reached here via scgetc() or scrn_timer() which has
2192		 * interrupted exchange_scr(). Don't do anything stupid.
2193		 */
2194		DPRINTF(5, ("waiting nothing, "));
2195	    }
2196	} else {
2197	    if (p)
2198		PROC_UNLOCK(p);
2199	    /*
2200	     * The controlling process is alive, but not responding...
2201	     * It is either buggy or it may be just taking time.
2202	     * The following code is a gross kludge to cope with this
2203	     * problem for which there is no clean solution. XXX
2204	     */
2205	    if (cur_scp->status & SWITCH_WAIT_REL) {
2206		switch (sc->switch_in_progress++) {
2207		case 1:
2208		    break;
2209		case 2:
2210		    DPRINTF(5, ("sending relsig again, "));
2211		    signal_vt_rel(cur_scp);
2212		    break;
2213		case 3:
2214		    break;
2215		case 4:
2216		default:
2217		    /*
2218		     * Act as if the controlling program returned
2219		     * VT_FALSE.
2220		     */
2221		    DPRINTF(5, ("force reset WAIT_REL, "));
2222		    finish_vt_rel(cur_scp, FALSE, &s);
2223		    splx(s);
2224		    DPRINTF(5, ("act as if VT_FALSE was seen\n"));
2225		    return EINVAL;
2226		}
2227	    } else if (cur_scp->status & SWITCH_WAIT_ACQ) {
2228		switch (sc->switch_in_progress++) {
2229		case 1:
2230		    break;
2231		case 2:
2232		    DPRINTF(5, ("sending acqsig again, "));
2233		    signal_vt_acq(cur_scp);
2234		    break;
2235		case 3:
2236		    break;
2237		case 4:
2238		default:
2239		     /* clear the flag and finish the previous switch */
2240		    DPRINTF(5, ("force reset WAIT_ACQ, "));
2241		    finish_vt_acq(cur_scp);
2242		    break;
2243		}
2244	    }
2245	}
2246    }
2247
2248    /*
2249     * Return error if an invalid argument is given, or vty switch
2250     * is still in progress.
2251     */
2252    if ((next_scr < sc->first_vty) || (next_scr >= sc->first_vty + sc->vtys)
2253	|| sc->switch_in_progress) {
2254	splx(s);
2255	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2256	DPRINTF(5, ("error 1\n"));
2257	return EINVAL;
2258    }
2259
2260    /*
2261     * Don't allow switching away from the graphics mode vty
2262     * if the switch mode is VT_AUTO, unless the next vty is the same
2263     * as the current or the current vty has been closed (but showing).
2264     */
2265    tp = VIRTUAL_TTY(sc, cur_scp->index);
2266    if ((cur_scp->index != next_scr)
2267	&& ISTTYOPEN(tp)
2268	&& (cur_scp->smode.mode == VT_AUTO)
2269	&& ISGRAPHSC(cur_scp)) {
2270	splx(s);
2271	sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2272	DPRINTF(5, ("error, graphics mode\n"));
2273	return EINVAL;
2274    }
2275
2276    /*
2277     * Is the wanted vty open? Don't allow switching to a closed vty.
2278     * If we are in DDB, don't switch to a vty in the VT_PROCESS mode.
2279     * Note that we always allow the user to switch to the kernel
2280     * console even if it is closed.
2281     */
2282    if ((sc_console == NULL) || (next_scr != sc_console->index)) {
2283	tp = VIRTUAL_TTY(sc, next_scr);
2284	if (!ISTTYOPEN(tp)) {
2285	    splx(s);
2286	    sc_bell(cur_scp, bios_value.bell_pitch, BELL_DURATION);
2287	    DPRINTF(5, ("error 2, requested vty isn't open!\n"));
2288	    return EINVAL;
2289	}
2290	if ((debugger > 0) && (SC_STAT(tp->t_dev)->smode.mode == VT_PROCESS)) {
2291	    splx(s);
2292	    DPRINTF(5, ("error 3, requested vty is in the VT_PROCESS mode\n"));
2293	    return EINVAL;
2294	}
2295    }
2296
2297    /* this is the start of vty switching process... */
2298    ++sc->switch_in_progress;
2299    sc->delayed_next_scr = 0;
2300    sc->old_scp = cur_scp;
2301    sc->new_scp = SC_STAT(SC_DEV(sc, next_scr));
2302    if (sc->new_scp == sc->old_scp) {
2303	sc->switch_in_progress = 0;
2304	/*
2305	 * XXX wakeup() calls mtx_lock(&sched_lock) which will hang if
2306	 * sched_lock is in an in-between state, e.g., when we stop at
2307	 * a breakpoint at fork_exit.  It has always been wrong to call
2308	 * wakeup() when the debugger is active.  In RELENG_4, wakeup()
2309	 * is supposed to be locked by splhigh(), but the debugger may
2310	 * be invoked at splhigh().
2311	 */
2312	if (debugger == 0)
2313	    wakeup(&sc->new_scp->smode);
2314	splx(s);
2315	DPRINTF(5, ("switch done (new == old)\n"));
2316	return 0;
2317    }
2318
2319    /* has controlling process died? */
2320    vt_proc_alive(sc->old_scp);
2321    vt_proc_alive(sc->new_scp);
2322
2323    /* wait for the controlling process to release the screen, if necessary */
2324    if (signal_vt_rel(sc->old_scp)) {
2325	splx(s);
2326	return 0;
2327    }
2328
2329    /* go set up the new vty screen */
2330    splx(s);
2331    exchange_scr(sc);
2332    s = spltty();
2333
2334    /* wake up processes waiting for this vty */
2335    if (debugger == 0)
2336	wakeup(&sc->cur_scp->smode);
2337
2338    /* wait for the controlling process to acknowledge, if necessary */
2339    if (signal_vt_acq(sc->cur_scp)) {
2340	splx(s);
2341	return 0;
2342    }
2343
2344    sc->switch_in_progress = 0;
2345    if (sc->unit == sc_console_unit)
2346	cons_unavail = FALSE;
2347    splx(s);
2348    DPRINTF(5, ("switch done\n"));
2349
2350    return 0;
2351}
2352
2353static int
2354do_switch_scr(sc_softc_t *sc, int s)
2355{
2356    vt_proc_alive(sc->new_scp);
2357
2358    splx(s);
2359    exchange_scr(sc);
2360    s = spltty();
2361    /* sc->cur_scp == sc->new_scp */
2362    wakeup(&sc->cur_scp->smode);
2363
2364    /* wait for the controlling process to acknowledge, if necessary */
2365    if (!signal_vt_acq(sc->cur_scp)) {
2366	sc->switch_in_progress = 0;
2367	if (sc->unit == sc_console_unit)
2368	    cons_unavail = FALSE;
2369    }
2370
2371    return s;
2372}
2373
2374static int
2375vt_proc_alive(scr_stat *scp)
2376{
2377    struct proc *p;
2378
2379    if (scp->proc) {
2380	if ((p = pfind(scp->pid)) != NULL)
2381	    PROC_UNLOCK(p);
2382	if (scp->proc == p)
2383	    return TRUE;
2384	scp->proc = NULL;
2385	scp->smode.mode = VT_AUTO;
2386	DPRINTF(5, ("vt controlling process %d died\n", scp->pid));
2387    }
2388    return FALSE;
2389}
2390
2391static int
2392signal_vt_rel(scr_stat *scp)
2393{
2394    if (scp->smode.mode != VT_PROCESS)
2395	return FALSE;
2396    scp->status |= SWITCH_WAIT_REL;
2397    PROC_LOCK(scp->proc);
2398    psignal(scp->proc, scp->smode.relsig);
2399    PROC_UNLOCK(scp->proc);
2400    DPRINTF(5, ("sending relsig to %d\n", scp->pid));
2401    return TRUE;
2402}
2403
2404static int
2405signal_vt_acq(scr_stat *scp)
2406{
2407    if (scp->smode.mode != VT_PROCESS)
2408	return FALSE;
2409    if (scp->sc->unit == sc_console_unit)
2410	cons_unavail = TRUE;
2411    scp->status |= SWITCH_WAIT_ACQ;
2412    PROC_LOCK(scp->proc);
2413    psignal(scp->proc, scp->smode.acqsig);
2414    PROC_UNLOCK(scp->proc);
2415    DPRINTF(5, ("sending acqsig to %d\n", scp->pid));
2416    return TRUE;
2417}
2418
2419static int
2420finish_vt_rel(scr_stat *scp, int release, int *s)
2421{
2422    if (scp == scp->sc->old_scp && scp->status & SWITCH_WAIT_REL) {
2423	scp->status &= ~SWITCH_WAIT_REL;
2424	if (release)
2425	    *s = do_switch_scr(scp->sc, *s);
2426	else
2427	    scp->sc->switch_in_progress = 0;
2428	return 0;
2429    }
2430    return EINVAL;
2431}
2432
2433static int
2434finish_vt_acq(scr_stat *scp)
2435{
2436    if (scp == scp->sc->new_scp && scp->status & SWITCH_WAIT_ACQ) {
2437	scp->status &= ~SWITCH_WAIT_ACQ;
2438	scp->sc->switch_in_progress = 0;
2439	return 0;
2440    }
2441    return EINVAL;
2442}
2443
2444static void
2445exchange_scr(sc_softc_t *sc)
2446{
2447    scr_stat *scp;
2448
2449    /* save the current state of video and keyboard */
2450    sc_move_cursor(sc->old_scp, sc->old_scp->xpos, sc->old_scp->ypos);
2451    if (!ISGRAPHSC(sc->old_scp))
2452	sc_remove_cursor_image(sc->old_scp);
2453    if (sc->old_scp->kbd_mode == K_XLATE)
2454	save_kbd_state(sc->old_scp);
2455
2456    /* set up the video for the new screen */
2457    scp = sc->cur_scp = sc->new_scp;
2458    if (sc->old_scp->mode != scp->mode || ISUNKNOWNSC(sc->old_scp))
2459	set_mode(scp);
2460#ifndef __sparc64__
2461    else
2462	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2463		    (void *)sc->adp->va_window, FALSE);
2464#endif
2465    scp->status |= MOUSE_HIDDEN;
2466    sc_move_cursor(scp, scp->xpos, scp->ypos);
2467    if (!ISGRAPHSC(scp))
2468	sc_set_cursor_image(scp);
2469#ifndef SC_NO_PALETTE_LOADING
2470    if (ISGRAPHSC(sc->old_scp))
2471	load_palette(sc->adp, sc->palette);
2472#endif
2473    sc_set_border(scp, scp->border);
2474
2475    /* set up the keyboard for the new screen */
2476    if (sc->old_scp->kbd_mode != scp->kbd_mode)
2477	kbd_ioctl(sc->kbd, KDSKBMODE, (caddr_t)&scp->kbd_mode);
2478    update_kbd_state(scp, scp->status, LOCK_MASK);
2479
2480    mark_all(scp);
2481}
2482
2483void
2484sc_puts(scr_stat *scp, u_char *buf, int len)
2485{
2486#ifdef DEV_SPLASH
2487    /* make screensaver happy */
2488    if (!sticky_splash && scp == scp->sc->cur_scp && !sc_saver_keyb_only)
2489	run_scrn_saver = FALSE;
2490#endif
2491
2492    if (scp->tsw)
2493	(*scp->tsw->te_puts)(scp, buf, len);
2494
2495    if (scp->sc->delayed_next_scr)
2496	sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
2497}
2498
2499void
2500sc_draw_cursor_image(scr_stat *scp)
2501{
2502    /* assert(scp == scp->sc->cur_scp); */
2503    ++scp->sc->videoio_in_progress;
2504    (*scp->rndr->draw_cursor)(scp, scp->cursor_pos,
2505			      scp->curs_attr.flags & CONS_BLINK_CURSOR, TRUE,
2506			      sc_inside_cutmark(scp, scp->cursor_pos));
2507    scp->cursor_oldpos = scp->cursor_pos;
2508    --scp->sc->videoio_in_progress;
2509}
2510
2511void
2512sc_remove_cursor_image(scr_stat *scp)
2513{
2514    /* assert(scp == scp->sc->cur_scp); */
2515    ++scp->sc->videoio_in_progress;
2516    (*scp->rndr->draw_cursor)(scp, scp->cursor_oldpos,
2517			      scp->curs_attr.flags & CONS_BLINK_CURSOR, FALSE,
2518			      sc_inside_cutmark(scp, scp->cursor_oldpos));
2519    --scp->sc->videoio_in_progress;
2520}
2521
2522static void
2523update_cursor_image(scr_stat *scp)
2524{
2525    /* assert(scp == scp->sc->cur_scp); */
2526    sc_remove_cursor_image(scp);
2527    sc_set_cursor_image(scp);
2528    sc_draw_cursor_image(scp);
2529}
2530
2531void
2532sc_set_cursor_image(scr_stat *scp)
2533{
2534    scp->curs_attr.flags = scp->curr_curs_attr.flags;
2535    if (scp->curs_attr.flags & CONS_HIDDEN_CURSOR) {
2536	/* hidden cursor is internally represented as zero-height underline */
2537	scp->curs_attr.flags = CONS_CHAR_CURSOR;
2538	scp->curs_attr.base = scp->curs_attr.height = 0;
2539    } else if (scp->curs_attr.flags & CONS_CHAR_CURSOR) {
2540	scp->curs_attr.base = imin(scp->curr_curs_attr.base,
2541				  scp->font_size - 1);
2542	scp->curs_attr.height = imin(scp->curr_curs_attr.height,
2543				    scp->font_size - scp->curs_attr.base);
2544    } else {	/* block cursor */
2545	scp->curs_attr.base = 0;
2546	scp->curs_attr.height = scp->font_size;
2547    }
2548
2549    /* assert(scp == scp->sc->cur_scp); */
2550    ++scp->sc->videoio_in_progress;
2551    (*scp->rndr->set_cursor)(scp, scp->curs_attr.base, scp->curs_attr.height,
2552			     scp->curs_attr.flags & CONS_BLINK_CURSOR);
2553    --scp->sc->videoio_in_progress;
2554}
2555
2556static void
2557change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2558{
2559    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp))
2560	sc_remove_cursor_image(scp);
2561
2562    if (base >= 0)
2563	scp->curr_curs_attr.base = base;
2564    if (height >= 0)
2565	scp->curr_curs_attr.height = height;
2566    if (flags & CONS_RESET_CURSOR)
2567	scp->curr_curs_attr = scp->dflt_curs_attr;
2568    else
2569	scp->curr_curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2570
2571    if ((scp == scp->sc->cur_scp) && !ISGRAPHSC(scp)) {
2572	sc_set_cursor_image(scp);
2573	sc_draw_cursor_image(scp);
2574    }
2575}
2576
2577void
2578sc_change_cursor_shape(scr_stat *scp, int flags, int base, int height)
2579{
2580    sc_softc_t *sc;
2581    dev_t dev;
2582    int s;
2583    int i;
2584
2585    s = spltty();
2586    if ((flags != -1) && (flags & CONS_LOCAL_CURSOR)) {
2587	/* local (per vty) change */
2588	change_cursor_shape(scp, flags, base, height);
2589	splx(s);
2590	return;
2591    }
2592
2593    /* global change */
2594    sc = scp->sc;
2595    if (base >= 0)
2596	sc->curs_attr.base = base;
2597    if (height >= 0)
2598	sc->curs_attr.height = height;
2599    if (flags != -1) {
2600	if (flags & CONS_RESET_CURSOR)
2601	    sc->curs_attr = sc->dflt_curs_attr;
2602	else
2603	    sc->curs_attr.flags = flags & CONS_CURSOR_ATTRS;
2604    }
2605
2606    for (i = sc->first_vty; i < sc->first_vty + sc->vtys; ++i) {
2607	if ((dev = SC_DEV(sc, i)) == NODEV)
2608	    continue;
2609	if ((scp = SC_STAT(dev)) == NULL)
2610	    continue;
2611	scp->dflt_curs_attr = sc->curs_attr;
2612	change_cursor_shape(scp, CONS_RESET_CURSOR, -1, -1);
2613    }
2614    splx(s);
2615}
2616
2617static void
2618scinit(int unit, int flags)
2619{
2620    /*
2621     * When syscons is being initialized as the kernel console, malloc()
2622     * is not yet functional, because various kernel structures has not been
2623     * fully initialized yet.  Therefore, we need to declare the following
2624     * static buffers for the console.  This is less than ideal,
2625     * but is necessry evil for the time being.  XXX
2626     */
2627    static scr_stat main_console;
2628    static dev_t main_devs[MAXCONS];
2629    static struct tty main_tty;
2630    static u_short sc_buffer[ROW*COL];	/* XXX */
2631#ifndef SC_NO_FONT_LOADING
2632    static u_char font_8[256*8];
2633    static u_char font_14[256*14];
2634    static u_char font_16[256*16];
2635#endif
2636
2637    sc_softc_t *sc;
2638    scr_stat *scp;
2639    video_adapter_t *adp;
2640    int col;
2641    int row;
2642    int i;
2643
2644    /* one time initialization */
2645    if (init_done == COLD)
2646	sc_get_bios_values(&bios_value);
2647    init_done = WARM;
2648
2649    /*
2650     * Allocate resources.  Even if we are being called for the second
2651     * time, we must allocate them again, because they might have
2652     * disappeared...
2653     */
2654    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2655    adp = NULL;
2656    if (sc->adapter >= 0) {
2657	vid_release(sc->adp, (void *)&sc->adapter);
2658	adp = sc->adp;
2659	sc->adp = NULL;
2660    }
2661    if (sc->keyboard >= 0) {
2662	DPRINTF(5, ("sc%d: releasing kbd%d\n", unit, sc->keyboard));
2663	i = kbd_release(sc->kbd, (void *)&sc->keyboard);
2664	DPRINTF(5, ("sc%d: kbd_release returned %d\n", unit, i));
2665	if (sc->kbd != NULL) {
2666	    DPRINTF(5, ("sc%d: kbd != NULL!, index:%d, unit:%d, flags:0x%x\n",
2667		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2668	}
2669	sc->kbd = NULL;
2670    }
2671    sc->adapter = vid_allocate("*", unit, (void *)&sc->adapter);
2672    sc->adp = vid_get_adapter(sc->adapter);
2673    /* assert((sc->adapter >= 0) && (sc->adp != NULL)) */
2674    sc->keyboard = kbd_allocate("*", unit, (void *)&sc->keyboard,
2675				sckbdevent, sc);
2676    DPRINTF(1, ("sc%d: keyboard %d\n", unit, sc->keyboard));
2677    sc->kbd = kbd_get_keyboard(sc->keyboard);
2678    if (sc->kbd != NULL) {
2679	DPRINTF(1, ("sc%d: kbd index:%d, unit:%d, flags:0x%x\n",
2680		unit, sc->kbd->kb_index, sc->kbd->kb_unit, sc->kbd->kb_flags));
2681    }
2682
2683    if (!(sc->flags & SC_INIT_DONE) || (adp != sc->adp)) {
2684
2685	sc->initial_mode = sc->adp->va_initial_mode;
2686
2687#ifndef SC_NO_FONT_LOADING
2688	if (flags & SC_KERNEL_CONSOLE) {
2689	    sc->font_8 = font_8;
2690	    sc->font_14 = font_14;
2691	    sc->font_16 = font_16;
2692	} else if (sc->font_8 == NULL) {
2693	    /* assert(sc_malloc) */
2694	    sc->font_8 = malloc(sizeof(font_8), M_DEVBUF, M_WAITOK);
2695	    sc->font_14 = malloc(sizeof(font_14), M_DEVBUF, M_WAITOK);
2696	    sc->font_16 = malloc(sizeof(font_16), M_DEVBUF, M_WAITOK);
2697	}
2698#endif
2699
2700	/* extract the hardware cursor location and hide the cursor for now */
2701	(*vidsw[sc->adapter]->read_hw_cursor)(sc->adp, &col, &row);
2702	(*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, -1, -1);
2703
2704	/* set up the first console */
2705	sc->first_vty = unit*MAXCONS;
2706	sc->vtys = MAXCONS;		/* XXX: should be configurable */
2707	if (flags & SC_KERNEL_CONSOLE) {
2708	    sc->dev = main_devs;
2709	    sc->dev[0] = makedev(CDEV_MAJOR, unit*MAXCONS);
2710	    sc->dev[0]->si_tty = &main_tty;
2711	    ttyregister(&main_tty);
2712	    scp = &main_console;
2713	    init_scp(sc, sc->first_vty, scp);
2714	    sc_vtb_init(&scp->vtb, VTB_MEMORY, scp->xsize, scp->ysize,
2715			(void *)sc_buffer, FALSE);
2716	    if (sc_init_emulator(scp, SC_DFLT_TERM))
2717		sc_init_emulator(scp, "*");
2718	    (*scp->tsw->te_default_attr)(scp,
2719					 kernel_default.std_color,
2720					 kernel_default.rev_color);
2721	} else {
2722	    /* assert(sc_malloc) */
2723	    sc->dev = malloc(sizeof(dev_t)*sc->vtys, M_DEVBUF, M_WAITOK|M_ZERO);
2724	    sc->dev[0] = makedev(CDEV_MAJOR, unit*MAXCONS);
2725	    sc->dev[0]->si_tty = ttymalloc(sc->dev[0]->si_tty);
2726	    scp = alloc_scp(sc, sc->first_vty);
2727	}
2728	SC_STAT(sc->dev[0]) = scp;
2729	sc->cur_scp = scp;
2730
2731#ifndef __sparc64__
2732	/* copy screen to temporary buffer */
2733	sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
2734		    (void *)scp->sc->adp->va_window, FALSE);
2735	if (ISTEXTSC(scp))
2736	    sc_vtb_copy(&scp->scr, 0, &scp->vtb, 0, scp->xsize*scp->ysize);
2737#endif
2738
2739	/* move cursors to the initial positions */
2740	if (col >= scp->xsize)
2741	    col = 0;
2742	if (row >= scp->ysize)
2743	    row = scp->ysize - 1;
2744	scp->xpos = col;
2745	scp->ypos = row;
2746	scp->cursor_pos = scp->cursor_oldpos = row*scp->xsize + col;
2747
2748	if (bios_value.cursor_end < scp->font_size)
2749	    sc->dflt_curs_attr.base = scp->font_size -
2750					  bios_value.cursor_end - 1;
2751	else
2752	    sc->dflt_curs_attr.base = 0;
2753	i = bios_value.cursor_end - bios_value.cursor_start + 1;
2754	sc->dflt_curs_attr.height = imin(i, scp->font_size);
2755	sc->dflt_curs_attr.flags = 0;
2756	sc->curs_attr = sc->dflt_curs_attr;
2757	scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
2758
2759#ifndef SC_NO_SYSMOUSE
2760	sc_mouse_move(scp, scp->xpixel/2, scp->ypixel/2);
2761#endif
2762	if (!ISGRAPHSC(scp)) {
2763    	    sc_set_cursor_image(scp);
2764    	    sc_draw_cursor_image(scp);
2765	}
2766
2767	/* save font and palette */
2768#ifndef SC_NO_FONT_LOADING
2769	sc->fonts_loaded = 0;
2770	if (ISFONTAVAIL(sc->adp->va_flags)) {
2771#ifdef SC_DFLT_FONT
2772	    bcopy(dflt_font_8, sc->font_8, sizeof(dflt_font_8));
2773	    bcopy(dflt_font_14, sc->font_14, sizeof(dflt_font_14));
2774	    bcopy(dflt_font_16, sc->font_16, sizeof(dflt_font_16));
2775	    sc->fonts_loaded = FONT_16 | FONT_14 | FONT_8;
2776	    if (scp->font_size < 14) {
2777		sc_load_font(scp, 0, 8, sc->font_8, 0, 256);
2778	    } else if (scp->font_size >= 16) {
2779		sc_load_font(scp, 0, 16, sc->font_16, 0, 256);
2780	    } else {
2781		sc_load_font(scp, 0, 14, sc->font_14, 0, 256);
2782	    }
2783#else /* !SC_DFLT_FONT */
2784	    if (scp->font_size < 14) {
2785		sc_save_font(scp, 0, 8, sc->font_8, 0, 256);
2786		sc->fonts_loaded = FONT_8;
2787	    } else if (scp->font_size >= 16) {
2788		sc_save_font(scp, 0, 16, sc->font_16, 0, 256);
2789		sc->fonts_loaded = FONT_16;
2790	    } else {
2791		sc_save_font(scp, 0, 14, sc->font_14, 0, 256);
2792		sc->fonts_loaded = FONT_14;
2793	    }
2794#endif /* SC_DFLT_FONT */
2795	    /* FONT KLUDGE: always use the font page #0. XXX */
2796	    sc_show_font(scp, 0);
2797	}
2798#endif /* !SC_NO_FONT_LOADING */
2799
2800#ifndef SC_NO_PALETTE_LOADING
2801	save_palette(sc->adp, sc->palette);
2802#endif
2803
2804#ifdef DEV_SPLASH
2805	if (!(sc->flags & SC_SPLASH_SCRN) && (flags & SC_KERNEL_CONSOLE)) {
2806	    /* we are ready to put up the splash image! */
2807	    splash_init(sc->adp, scsplash_callback, sc);
2808	    sc->flags |= SC_SPLASH_SCRN;
2809	}
2810#endif
2811    }
2812
2813    /* the rest is not necessary, if we have done it once */
2814    if (sc->flags & SC_INIT_DONE)
2815	return;
2816
2817    /* initialize mapscrn arrays to a one to one map */
2818    for (i = 0; i < sizeof(sc->scr_map); i++)
2819	sc->scr_map[i] = sc->scr_rmap[i] = i;
2820
2821    sc->flags |= SC_INIT_DONE;
2822}
2823
2824#if __i386__ || __ia64__ || __amd64__ || __sparc64__
2825static void
2826scterm(int unit, int flags)
2827{
2828    sc_softc_t *sc;
2829    scr_stat *scp;
2830
2831    sc = sc_get_softc(unit, flags & SC_KERNEL_CONSOLE);
2832    if (sc == NULL)
2833	return;			/* shouldn't happen */
2834
2835#ifdef DEV_SPLASH
2836    /* this console is no longer available for the splash screen */
2837    if (sc->flags & SC_SPLASH_SCRN) {
2838	splash_term(sc->adp);
2839	sc->flags &= ~SC_SPLASH_SCRN;
2840    }
2841#endif
2842
2843#if 0 /* XXX */
2844    /* move the hardware cursor to the upper-left corner */
2845    (*vidsw[sc->adapter]->set_hw_cursor)(sc->adp, 0, 0);
2846#endif
2847
2848    /* release the keyboard and the video card */
2849    if (sc->keyboard >= 0)
2850	kbd_release(sc->kbd, &sc->keyboard);
2851    if (sc->adapter >= 0)
2852	vid_release(sc->adp, &sc->adapter);
2853
2854    /* stop the terminal emulator, if any */
2855    scp = SC_STAT(sc->dev[0]);
2856    if (scp->tsw)
2857	(*scp->tsw->te_term)(scp, &scp->ts);
2858    if (scp->ts != NULL)
2859	free(scp->ts, M_DEVBUF);
2860
2861    /* clear the structure */
2862    if (!(flags & SC_KERNEL_CONSOLE)) {
2863	/* XXX: We need delete_dev() for this */
2864	free(sc->dev, M_DEVBUF);
2865#if 0
2866	/* XXX: We need a ttyunregister for this */
2867	free(sc->tty, M_DEVBUF);
2868#endif
2869#ifndef SC_NO_FONT_LOADING
2870	free(sc->font_8, M_DEVBUF);
2871	free(sc->font_14, M_DEVBUF);
2872	free(sc->font_16, M_DEVBUF);
2873#endif
2874	/* XXX vtb, history */
2875    }
2876    bzero(sc, sizeof(*sc));
2877    sc->keyboard = -1;
2878    sc->adapter = -1;
2879}
2880#endif /* __i386__ || __ia64__ || __amd64__ || __sparc64__ */
2881
2882static void
2883scshutdown(void *arg, int howto)
2884{
2885    /* assert(sc_console != NULL) */
2886
2887    sc_touch_scrn_saver();
2888    if (!cold && sc_console
2889	&& sc_console->sc->cur_scp->smode.mode == VT_AUTO
2890	&& sc_console->smode.mode == VT_AUTO)
2891	sc_switch_scr(sc_console->sc, sc_console->index);
2892    shutdown_in_progress = TRUE;
2893}
2894
2895int
2896sc_clean_up(scr_stat *scp)
2897{
2898#ifdef DEV_SPLASH
2899    int error;
2900#endif
2901
2902    if (scp->sc->flags & SC_SCRN_BLANKED) {
2903	sc_touch_scrn_saver();
2904#ifdef DEV_SPLASH
2905	if ((error = wait_scrn_saver_stop(scp->sc)))
2906	    return error;
2907#endif
2908    }
2909    scp->status |= MOUSE_HIDDEN;
2910    sc_remove_mouse_image(scp);
2911    sc_remove_cutmarking(scp);
2912    return 0;
2913}
2914
2915void
2916sc_alloc_scr_buffer(scr_stat *scp, int wait, int discard)
2917{
2918    sc_vtb_t new;
2919    sc_vtb_t old;
2920
2921    old = scp->vtb;
2922    sc_vtb_init(&new, VTB_MEMORY, scp->xsize, scp->ysize, NULL, wait);
2923    if (!discard && (old.vtb_flags & VTB_VALID)) {
2924	/* retain the current cursor position and buffer contants */
2925	scp->cursor_oldpos = scp->cursor_pos;
2926	/*
2927	 * This works only if the old buffer has the same size as or larger
2928	 * than the new one. XXX
2929	 */
2930	sc_vtb_copy(&old, 0, &new, 0, scp->xsize*scp->ysize);
2931	scp->vtb = new;
2932    } else {
2933	scp->vtb = new;
2934	sc_vtb_destroy(&old);
2935    }
2936
2937#ifndef SC_NO_SYSMOUSE
2938    /* move the mouse cursor at the center of the screen */
2939    sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
2940#endif
2941}
2942
2943static scr_stat
2944*alloc_scp(sc_softc_t *sc, int vty)
2945{
2946    scr_stat *scp;
2947
2948    /* assert(sc_malloc) */
2949
2950    scp = (scr_stat *)malloc(sizeof(scr_stat), M_DEVBUF, M_WAITOK);
2951    init_scp(sc, vty, scp);
2952
2953    sc_alloc_scr_buffer(scp, TRUE, TRUE);
2954    if (sc_init_emulator(scp, SC_DFLT_TERM))
2955	sc_init_emulator(scp, "*");
2956
2957#ifndef SC_NO_CUTPASTE
2958    sc_alloc_cut_buffer(scp, TRUE);
2959#endif
2960
2961#ifndef SC_NO_HISTORY
2962    sc_alloc_history_buffer(scp, 0, 0, TRUE);
2963#endif
2964
2965    return scp;
2966}
2967
2968static void
2969init_scp(sc_softc_t *sc, int vty, scr_stat *scp)
2970{
2971    video_info_t info;
2972
2973    bzero(scp, sizeof(*scp));
2974
2975    scp->index = vty;
2976    scp->sc = sc;
2977    scp->status = 0;
2978    scp->mode = sc->initial_mode;
2979    (*vidsw[sc->adapter]->get_info)(sc->adp, scp->mode, &info);
2980    if (info.vi_flags & V_INFO_GRAPHICS) {
2981	scp->status |= GRAPHICS_MODE;
2982	scp->xpixel = info.vi_width;
2983	scp->ypixel = info.vi_height;
2984	scp->xsize = info.vi_width/info.vi_cwidth;
2985	scp->ysize = info.vi_height/info.vi_cheight;
2986	scp->font_size = 0;
2987	scp->font = NULL;
2988    } else {
2989	scp->xsize = info.vi_width;
2990	scp->ysize = info.vi_height;
2991	scp->xpixel = scp->xsize*info.vi_cwidth;
2992	scp->ypixel = scp->ysize*info.vi_cheight;
2993	scp->font_size = info.vi_cheight;
2994	scp->font_width = info.vi_cwidth;
2995	if (info.vi_cheight < 14) {
2996#ifndef SC_NO_FONT_LOADING
2997	    scp->font = sc->font_8;
2998#else
2999	    scp->font = NULL;
3000#endif
3001	} else if (info.vi_cheight >= 16) {
3002#ifndef SC_NO_FONT_LOADING
3003	    scp->font = sc->font_16;
3004#else
3005	    scp->font = NULL;
3006#endif
3007	} else {
3008#ifndef SC_NO_FONT_LOADING
3009	    scp->font = sc->font_14;
3010#else
3011	    scp->font = NULL;
3012#endif
3013	}
3014    }
3015    sc_vtb_init(&scp->vtb, VTB_MEMORY, 0, 0, NULL, FALSE);
3016#ifndef __sparc64__
3017    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, 0, 0, NULL, FALSE);
3018#endif
3019    scp->xoff = scp->yoff = 0;
3020    scp->xpos = scp->ypos = 0;
3021    scp->start = scp->xsize * scp->ysize - 1;
3022    scp->end = 0;
3023    scp->tsw = NULL;
3024    scp->ts = NULL;
3025    scp->rndr = NULL;
3026    scp->border = BG_BLACK;
3027    scp->curr_curs_attr = scp->dflt_curs_attr = sc->curs_attr;
3028    scp->mouse_cut_start = scp->xsize*scp->ysize;
3029    scp->mouse_cut_end = -1;
3030    scp->mouse_signal = 0;
3031    scp->mouse_pid = 0;
3032    scp->mouse_proc = NULL;
3033    scp->kbd_mode = K_XLATE;
3034    scp->bell_pitch = bios_value.bell_pitch;
3035    scp->bell_duration = BELL_DURATION;
3036    scp->status |= (bios_value.shift_state & NLKED);
3037    scp->status |= CURSOR_ENABLED | MOUSE_HIDDEN;
3038    scp->pid = 0;
3039    scp->proc = NULL;
3040    scp->smode.mode = VT_AUTO;
3041    scp->history = NULL;
3042    scp->history_pos = 0;
3043    scp->history_size = 0;
3044}
3045
3046int
3047sc_init_emulator(scr_stat *scp, char *name)
3048{
3049    sc_term_sw_t *sw;
3050    sc_rndr_sw_t *rndr;
3051    void *p;
3052    int error;
3053
3054    if (name == NULL)	/* if no name is given, use the current emulator */
3055	sw = scp->tsw;
3056    else		/* ...otherwise find the named emulator */
3057	sw = sc_term_match(name);
3058    if (sw == NULL)
3059	return EINVAL;
3060
3061    rndr = NULL;
3062    if (strcmp(sw->te_renderer, "*") != 0) {
3063	rndr = sc_render_match(scp, sw->te_renderer,
3064			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3065    }
3066    if (rndr == NULL) {
3067	rndr = sc_render_match(scp, scp->sc->adp->va_name,
3068			       scp->status & (GRAPHICS_MODE | PIXEL_MODE));
3069	if (rndr == NULL)
3070	    return ENODEV;
3071    }
3072
3073    if (sw == scp->tsw) {
3074	error = (*sw->te_init)(scp, &scp->ts, SC_TE_WARM_INIT);
3075	scp->rndr = rndr;
3076	sc_clear_screen(scp);
3077	/* assert(error == 0); */
3078	return error;
3079    }
3080
3081    if (sc_malloc && (sw->te_size > 0))
3082	p = malloc(sw->te_size, M_DEVBUF, M_NOWAIT);
3083    else
3084	p = NULL;
3085    error = (*sw->te_init)(scp, &p, SC_TE_COLD_INIT);
3086    if (error)
3087	return error;
3088
3089    if (scp->tsw)
3090	(*scp->tsw->te_term)(scp, &scp->ts);
3091    if (scp->ts != NULL)
3092	free(scp->ts, M_DEVBUF);
3093    scp->tsw = sw;
3094    scp->ts = p;
3095    scp->rndr = rndr;
3096
3097    /* XXX */
3098    (*sw->te_default_attr)(scp, user_default.std_color, user_default.rev_color);
3099    sc_clear_screen(scp);
3100
3101    return 0;
3102}
3103
3104/*
3105 * scgetc(flags) - get character from keyboard.
3106 * If flags & SCGETC_CN, then avoid harmful side effects.
3107 * If flags & SCGETC_NONBLOCK, then wait until a key is pressed, else
3108 * return NOKEY if there is nothing there.
3109 */
3110static u_int
3111scgetc(sc_softc_t *sc, u_int flags)
3112{
3113    scr_stat *scp;
3114#ifndef SC_NO_HISTORY
3115    struct tty *tp;
3116#endif
3117    u_int c;
3118    int this_scr;
3119    int f;
3120    int i;
3121
3122    if (sc->kbd == NULL)
3123	return NOKEY;
3124
3125next_code:
3126#if 1
3127    /* I don't like this, but... XXX */
3128    if (flags & SCGETC_CN)
3129	sccnupdate(sc->cur_scp);
3130#endif
3131    scp = sc->cur_scp;
3132    /* first see if there is something in the keyboard port */
3133    for (;;) {
3134	c = kbd_read_char(sc->kbd, !(flags & SCGETC_NONBLOCK));
3135	if (c == ERRKEY) {
3136	    if (!(flags & SCGETC_CN))
3137		sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3138	} else if (c == NOKEY)
3139	    return c;
3140	else
3141	    break;
3142    }
3143
3144    /* make screensaver happy */
3145    if (!(c & RELKEY))
3146	sc_touch_scrn_saver();
3147
3148    if (!(flags & SCGETC_CN))
3149	random_harvest(&c, sizeof(c), 1, 0, RANDOM_KEYBOARD);
3150
3151    if (scp->kbd_mode != K_XLATE)
3152	return KEYCHAR(c);
3153
3154    /* if scroll-lock pressed allow history browsing */
3155    if (!ISGRAPHSC(scp) && scp->history && scp->status & SLKED) {
3156
3157	scp->status &= ~CURSOR_ENABLED;
3158	sc_remove_cursor_image(scp);
3159
3160#ifndef SC_NO_HISTORY
3161	if (!(scp->status & BUFFER_SAVED)) {
3162	    scp->status |= BUFFER_SAVED;
3163	    sc_hist_save(scp);
3164	}
3165	switch (c) {
3166	/* FIXME: key codes */
3167	case SPCLKEY | FKEY | F(49):  /* home key */
3168	    sc_remove_cutmarking(scp);
3169	    sc_hist_home(scp);
3170	    goto next_code;
3171
3172	case SPCLKEY | FKEY | F(57):  /* end key */
3173	    sc_remove_cutmarking(scp);
3174	    sc_hist_end(scp);
3175	    goto next_code;
3176
3177	case SPCLKEY | FKEY | F(50):  /* up arrow key */
3178	    sc_remove_cutmarking(scp);
3179	    if (sc_hist_up_line(scp))
3180		if (!(flags & SCGETC_CN))
3181		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3182	    goto next_code;
3183
3184	case SPCLKEY | FKEY | F(58):  /* down arrow key */
3185	    sc_remove_cutmarking(scp);
3186	    if (sc_hist_down_line(scp))
3187		if (!(flags & SCGETC_CN))
3188		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3189	    goto next_code;
3190
3191	case SPCLKEY | FKEY | F(51):  /* page up key */
3192	    sc_remove_cutmarking(scp);
3193	    for (i=0; i<scp->ysize; i++)
3194	    if (sc_hist_up_line(scp)) {
3195		if (!(flags & SCGETC_CN))
3196		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3197		break;
3198	    }
3199	    goto next_code;
3200
3201	case SPCLKEY | FKEY | F(59):  /* page down key */
3202	    sc_remove_cutmarking(scp);
3203	    for (i=0; i<scp->ysize; i++)
3204	    if (sc_hist_down_line(scp)) {
3205		if (!(flags & SCGETC_CN))
3206		    sc_bell(scp, bios_value.bell_pitch, BELL_DURATION);
3207		break;
3208	    }
3209	    goto next_code;
3210	}
3211#endif /* SC_NO_HISTORY */
3212    }
3213
3214    /*
3215     * Process and consume special keys here.  Return a plain char code
3216     * or a char code with the META flag or a function key code.
3217     */
3218    if (c & RELKEY) {
3219	/* key released */
3220	/* goto next_code */
3221    } else {
3222	/* key pressed */
3223	if (c & SPCLKEY) {
3224	    c &= ~SPCLKEY;
3225	    switch (KEYCHAR(c)) {
3226	    /* LOCKING KEYS */
3227	    case NLK: case CLK: case ALK:
3228		break;
3229	    case SLK:
3230		kbd_ioctl(sc->kbd, KDGKBSTATE, (caddr_t)&f);
3231		if (f & SLKED) {
3232		    scp->status |= SLKED;
3233		} else {
3234		    if (scp->status & SLKED) {
3235			scp->status &= ~SLKED;
3236#ifndef SC_NO_HISTORY
3237			if (scp->status & BUFFER_SAVED) {
3238			    if (!sc_hist_restore(scp))
3239				sc_remove_cutmarking(scp);
3240			    scp->status &= ~BUFFER_SAVED;
3241			    scp->status |= CURSOR_ENABLED;
3242			    sc_draw_cursor_image(scp);
3243			}
3244			tp = VIRTUAL_TTY(sc, scp->index);
3245			if (ISTTYOPEN(tp))
3246			    scstart(tp);
3247#endif
3248		    }
3249		}
3250		break;
3251
3252	    case PASTE:
3253#ifndef SC_NO_CUTPASTE
3254		sc_mouse_paste(scp);
3255#endif
3256		break;
3257
3258	    /* NON-LOCKING KEYS */
3259	    case NOP:
3260	    case LSH:  case RSH:  case LCTR: case RCTR:
3261	    case LALT: case RALT: case ASH:  case META:
3262		break;
3263
3264	    case BTAB:
3265		if (!(sc->flags & SC_SCRN_BLANKED))
3266		    return c;
3267		break;
3268
3269	    case SPSC:
3270#ifdef DEV_SPLASH
3271		/* force activatation/deactivation of the screen saver */
3272		if (!(sc->flags & SC_SCRN_BLANKED)) {
3273		    run_scrn_saver = TRUE;
3274		    sc->scrn_time_stamp -= scrn_blank_time;
3275		}
3276		if (cold) {
3277		    /*
3278		     * While devices are being probed, the screen saver need
3279		     * to be invoked explictly. XXX
3280		     */
3281		    if (sc->flags & SC_SCRN_BLANKED) {
3282			scsplash_stick(FALSE);
3283			stop_scrn_saver(sc, current_saver);
3284		    } else {
3285			if (!ISGRAPHSC(scp)) {
3286			    scsplash_stick(TRUE);
3287			    (*current_saver)(sc, TRUE);
3288			}
3289		    }
3290		}
3291#endif /* DEV_SPLASH */
3292		break;
3293
3294	    case RBT:
3295#ifndef SC_DISABLE_REBOOT
3296		shutdown_nice(0);
3297#endif
3298		break;
3299
3300	    case HALT:
3301#ifndef SC_DISABLE_REBOOT
3302		shutdown_nice(RB_HALT);
3303#endif
3304		break;
3305
3306	    case PDWN:
3307#ifndef SC_DISABLE_REBOOT
3308		shutdown_nice(RB_HALT|RB_POWEROFF);
3309#endif
3310		break;
3311
3312	    case SUSP:
3313		power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
3314		break;
3315	    case STBY:
3316		power_pm_suspend(POWER_SLEEP_STATE_STANDBY);
3317		break;
3318
3319	    case DBG:
3320#ifndef SC_DISABLE_DDBKEY
3321#ifdef DDB
3322		Debugger("manual escape to debugger");
3323#else
3324		printf("No debugger in kernel\n");
3325#endif
3326#else /* SC_DISABLE_DDBKEY */
3327		/* do nothing */
3328#endif /* SC_DISABLE_DDBKEY */
3329		break;
3330
3331	    case PNC:
3332		if (enable_panic_key)
3333			panic("Forced by the panic key");
3334		break;
3335
3336	    case NEXT:
3337		this_scr = scp->index;
3338		for (i = (this_scr - sc->first_vty + 1)%sc->vtys;
3339			sc->first_vty + i != this_scr;
3340			i = (i + 1)%sc->vtys) {
3341		    struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i);
3342		    if (ISTTYOPEN(tp)) {
3343			sc_switch_scr(scp->sc, sc->first_vty + i);
3344			break;
3345		    }
3346		}
3347		break;
3348
3349	    case PREV:
3350		this_scr = scp->index;
3351		for (i = (this_scr - sc->first_vty + sc->vtys - 1)%sc->vtys;
3352			sc->first_vty + i != this_scr;
3353			i = (i + sc->vtys - 1)%sc->vtys) {
3354		    struct tty *tp = VIRTUAL_TTY(sc, sc->first_vty + i);
3355		    if (ISTTYOPEN(tp)) {
3356			sc_switch_scr(scp->sc, sc->first_vty + i);
3357			break;
3358		    }
3359		}
3360		break;
3361
3362	    default:
3363		if (KEYCHAR(c) >= F_SCR && KEYCHAR(c) <= L_SCR) {
3364		    sc_switch_scr(scp->sc, sc->first_vty + KEYCHAR(c) - F_SCR);
3365		    break;
3366		}
3367		/* assert(c & FKEY) */
3368		if (!(sc->flags & SC_SCRN_BLANKED))
3369		    return c;
3370		break;
3371	    }
3372	    /* goto next_code */
3373	} else {
3374	    /* regular keys (maybe MKEY is set) */
3375	    if (!(sc->flags & SC_SCRN_BLANKED))
3376		return c;
3377	}
3378    }
3379
3380    goto next_code;
3381}
3382
3383static int
3384scmmap(dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot)
3385{
3386    scr_stat *scp;
3387
3388    scp = SC_STAT(dev);
3389    if (scp != scp->sc->cur_scp)
3390	return -1;
3391    return (*vidsw[scp->sc->adapter]->mmap)(scp->sc->adp, offset, paddr, nprot);
3392}
3393
3394static int
3395save_kbd_state(scr_stat *scp)
3396{
3397    int state;
3398    int error;
3399
3400    error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3401    if (error == ENOIOCTL)
3402	error = ENODEV;
3403    if (error == 0) {
3404	scp->status &= ~LOCK_MASK;
3405	scp->status |= state;
3406    }
3407    return error;
3408}
3409
3410static int
3411update_kbd_state(scr_stat *scp, int new_bits, int mask)
3412{
3413    int state;
3414    int error;
3415
3416    if (mask != LOCK_MASK) {
3417	error = kbd_ioctl(scp->sc->kbd, KDGKBSTATE, (caddr_t)&state);
3418	if (error == ENOIOCTL)
3419	    error = ENODEV;
3420	if (error)
3421	    return error;
3422	state &= ~mask;
3423	state |= new_bits & mask;
3424    } else {
3425	state = new_bits & LOCK_MASK;
3426    }
3427    error = kbd_ioctl(scp->sc->kbd, KDSKBSTATE, (caddr_t)&state);
3428    if (error == ENOIOCTL)
3429	error = ENODEV;
3430    return error;
3431}
3432
3433static int
3434update_kbd_leds(scr_stat *scp, int which)
3435{
3436    int error;
3437
3438    which &= LOCK_MASK;
3439    error = kbd_ioctl(scp->sc->kbd, KDSETLED, (caddr_t)&which);
3440    if (error == ENOIOCTL)
3441	error = ENODEV;
3442    return error;
3443}
3444
3445int
3446set_mode(scr_stat *scp)
3447{
3448    video_info_t info;
3449
3450    /* reject unsupported mode */
3451    if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
3452	return 1;
3453
3454    /* if this vty is not currently showing, do nothing */
3455    if (scp != scp->sc->cur_scp)
3456	return 0;
3457
3458    /* setup video hardware for the given mode */
3459    (*vidsw[scp->sc->adapter]->set_mode)(scp->sc->adp, scp->mode);
3460#ifndef __sparc64__
3461    sc_vtb_init(&scp->scr, VTB_FRAMEBUFFER, scp->xsize, scp->ysize,
3462		(void *)scp->sc->adp->va_window, FALSE);
3463#endif
3464
3465#ifndef SC_NO_FONT_LOADING
3466    /* load appropriate font */
3467    if (!(scp->status & GRAPHICS_MODE)) {
3468	if (!(scp->status & PIXEL_MODE) && ISFONTAVAIL(scp->sc->adp->va_flags)) {
3469	    if (scp->font_size < 14) {
3470		if (scp->sc->fonts_loaded & FONT_8)
3471		    sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
3472	    } else if (scp->font_size >= 16) {
3473		if (scp->sc->fonts_loaded & FONT_16)
3474		    sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
3475	    } else {
3476		if (scp->sc->fonts_loaded & FONT_14)
3477		    sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
3478	    }
3479	    /*
3480	     * FONT KLUDGE:
3481	     * This is an interim kludge to display correct font.
3482	     * Always use the font page #0 on the video plane 2.
3483	     * Somehow we cannot show the font in other font pages on
3484	     * some video cards... XXX
3485	     */
3486	    sc_show_font(scp, 0);
3487	}
3488	mark_all(scp);
3489    }
3490#endif /* !SC_NO_FONT_LOADING */
3491
3492    sc_set_border(scp, scp->border);
3493    sc_set_cursor_image(scp);
3494
3495    return 0;
3496}
3497
3498void
3499sc_set_border(scr_stat *scp, int color)
3500{
3501    ++scp->sc->videoio_in_progress;
3502    (*scp->rndr->draw_border)(scp, color);
3503    --scp->sc->videoio_in_progress;
3504}
3505
3506#ifndef SC_NO_FONT_LOADING
3507void
3508sc_load_font(scr_stat *scp, int page, int size, u_char *buf,
3509	     int base, int count)
3510{
3511    sc_softc_t *sc;
3512
3513    sc = scp->sc;
3514    sc->font_loading_in_progress = TRUE;
3515    (*vidsw[sc->adapter]->load_font)(sc->adp, page, size, buf, base, count);
3516    sc->font_loading_in_progress = FALSE;
3517}
3518
3519void
3520sc_save_font(scr_stat *scp, int page, int size, u_char *buf,
3521	     int base, int count)
3522{
3523    sc_softc_t *sc;
3524
3525    sc = scp->sc;
3526    sc->font_loading_in_progress = TRUE;
3527    (*vidsw[sc->adapter]->save_font)(sc->adp, page, size, buf, base, count);
3528    sc->font_loading_in_progress = FALSE;
3529}
3530
3531void
3532sc_show_font(scr_stat *scp, int page)
3533{
3534    (*vidsw[scp->sc->adapter]->show_font)(scp->sc->adp, page);
3535}
3536#endif /* !SC_NO_FONT_LOADING */
3537
3538void
3539sc_paste(scr_stat *scp, u_char *p, int count)
3540{
3541    struct tty *tp;
3542    u_char *rmap;
3543
3544    tp = VIRTUAL_TTY(scp->sc, scp->sc->cur_scp->index);
3545    if (!ISTTYOPEN(tp))
3546	return;
3547    rmap = scp->sc->scr_rmap;
3548    for (; count > 0; --count)
3549	(*linesw[tp->t_line].l_rint)(rmap[*p++], tp);
3550}
3551
3552void
3553sc_bell(scr_stat *scp, int pitch, int duration)
3554{
3555    if (cold || shutdown_in_progress || !enable_bell)
3556	return;
3557
3558    if (scp != scp->sc->cur_scp && (scp->sc->flags & SC_QUIET_BELL))
3559	return;
3560
3561    if (scp->sc->flags & SC_VISUAL_BELL) {
3562	if (scp->sc->blink_in_progress)
3563	    return;
3564	scp->sc->blink_in_progress = 3;
3565	if (scp != scp->sc->cur_scp)
3566	    scp->sc->blink_in_progress += 2;
3567	blink_screen(scp->sc->cur_scp);
3568    } else if (duration != 0 && pitch != 0) {
3569	if (scp != scp->sc->cur_scp)
3570	    pitch *= 2;
3571	sysbeep(pitch, duration);
3572    }
3573}
3574
3575static void
3576blink_screen(void *arg)
3577{
3578    scr_stat *scp = arg;
3579    struct tty *tp;
3580
3581    if (ISGRAPHSC(scp) || (scp->sc->blink_in_progress <= 1)) {
3582	scp->sc->blink_in_progress = 0;
3583    	mark_all(scp);
3584	tp = VIRTUAL_TTY(scp->sc, scp->index);
3585	if (ISTTYOPEN(tp))
3586	    scstart(tp);
3587	if (scp->sc->delayed_next_scr)
3588	    sc_switch_scr(scp->sc, scp->sc->delayed_next_scr - 1);
3589    }
3590    else {
3591	(*scp->rndr->draw)(scp, 0, scp->xsize*scp->ysize,
3592			   scp->sc->blink_in_progress & 1);
3593	scp->sc->blink_in_progress--;
3594	timeout(blink_screen, scp, hz / 10);
3595    }
3596}
3597