scvidctl.c revision 225736
1/*-
2 * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The DragonFly Project
6 * by Sascha Wildner <saw@online.de>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer as
13 *    the first lines of this file unmodified.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: stable/9/sys/dev/syscons/scvidctl.c 216079 2010-11-30 16:46:15Z jkim $");
32
33#include "opt_compat.h"
34#include "opt_syscons.h"
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/conf.h>
39#include <sys/signalvar.h>
40#include <sys/tty.h>
41#include <sys/kernel.h>
42#include <sys/fbio.h>
43#include <sys/consio.h>
44#include <sys/filedesc.h>
45#include <sys/lock.h>
46#include <sys/sx.h>
47#include <sys/mutex.h>
48#include <sys/proc.h>
49
50#include <dev/fb/fbreg.h>
51#include <dev/syscons/syscons.h>
52
53SET_DECLARE(scrndr_set, const sc_renderer_t);
54
55/* for compatibility with previous versions */
56/* 3.0-RELEASE used the following structure */
57typedef struct old_video_adapter {
58    int			va_index;
59    int			va_type;
60    int			va_flags;
61/* flag bits are the same as the -CURRENT
62#define V_ADP_COLOR	(1<<0)
63#define V_ADP_MODECHANGE (1<<1)
64#define V_ADP_STATESAVE	(1<<2)
65#define V_ADP_STATELOAD	(1<<3)
66#define V_ADP_FONT	(1<<4)
67#define V_ADP_PALETTE	(1<<5)
68#define V_ADP_BORDER	(1<<6)
69#define V_ADP_VESA	(1<<7)
70*/
71    int			va_crtc_addr;
72    u_int		va_window;	/* virtual address */
73    size_t		va_window_size;
74    size_t		va_window_gran;
75    u_int		va_buffer;	/* virtual address */
76    size_t		va_buffer_size;
77    int			va_initial_mode;
78    int			va_initial_bios_mode;
79    int			va_mode;
80} old_video_adapter_t;
81
82#define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
83
84/* 3.1-RELEASE used the following structure */
85typedef struct old_video_adapter_info {
86    int			va_index;
87    int			va_type;
88    char		va_name[16];
89    int			va_unit;
90    int			va_flags;
91    int			va_io_base;
92    int			va_io_size;
93    int			va_crtc_addr;
94    int			va_mem_base;
95    int			va_mem_size;
96    u_int		va_window;	/* virtual address */
97    size_t		va_window_size;
98    size_t		va_window_gran;
99    u_int		va_buffer;
100    size_t		va_buffer_size;
101    int			va_initial_mode;
102    int			va_initial_bios_mode;
103    int			va_mode;
104    int			va_line_width;
105} old_video_adapter_info_t;
106
107#define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
108
109/* 3.0-RELEASE and 3.1-RELEASE used the following structure */
110typedef struct old_video_info {
111    int			vi_mode;
112    int			vi_flags;
113/* flag bits are the same as the -CURRENT
114#define V_INFO_COLOR	(1<<0)
115#define V_INFO_GRAPHICS	(1<<1)
116#define V_INFO_LINEAR	(1<<2)
117#define V_INFO_VESA	(1<<3)
118*/
119    int			vi_width;
120    int			vi_height;
121    int			vi_cwidth;
122    int			vi_cheight;
123    int			vi_depth;
124    int			vi_planes;
125    u_int		vi_window;	/* physical address */
126    size_t		vi_window_size;
127    size_t		vi_window_gran;
128    u_int		vi_buffer;	/* physical address */
129    size_t		vi_buffer_size;
130} old_video_info_t;
131
132#define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
133#define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
134
135int
136sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
137		 int fontsize, int fontwidth)
138{
139    video_info_t info;
140    u_char *font;
141    int prev_ysize;
142    int error;
143    int s;
144
145    if (vidd_get_info(scp->sc->adp, mode, &info))
146	return ENODEV;
147
148    /* adjust argument values */
149    if (fontwidth <= 0)
150	fontwidth = info.vi_cwidth;
151    if (fontsize <= 0)
152	fontsize = info.vi_cheight;
153    if (fontsize < 14)
154	fontsize = 8;
155    else if (fontsize >= 16)
156	fontsize = 16;
157    else
158	fontsize = 14;
159#ifndef SC_NO_FONT_LOADING
160    switch (fontsize) {
161    case 8:
162	if ((scp->sc->fonts_loaded & FONT_8) == 0)
163	    return (EINVAL);
164	font = scp->sc->font_8;
165	break;
166    case 14:
167	if ((scp->sc->fonts_loaded & FONT_14) == 0)
168	    return (EINVAL);
169	font = scp->sc->font_14;
170	break;
171    case 16:
172	if ((scp->sc->fonts_loaded & FONT_16) == 0)
173	    return (EINVAL);
174	font = scp->sc->font_16;
175	break;
176    }
177#else
178    font = NULL;
179#endif
180    if ((xsize <= 0) || (xsize > info.vi_width))
181	xsize = info.vi_width;
182    if ((ysize <= 0) || (ysize > info.vi_height))
183	ysize = info.vi_height;
184
185    /* stop screen saver, etc */
186    s = spltty();
187    if ((error = sc_clean_up(scp))) {
188	splx(s);
189	return error;
190    }
191
192    if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
193	splx(s);
194	return ENODEV;
195    }
196
197    /* set up scp */
198#ifndef SC_NO_HISTORY
199    if (scp->history != NULL)
200	sc_hist_save(scp);
201#endif
202    prev_ysize = scp->ysize;
203    /*
204     * This is a kludge to fend off scrn_update() while we
205     * muck around with scp. XXX
206     */
207    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
208    scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
209    scp->mode = mode;
210    scp->xsize = xsize;
211    scp->ysize = ysize;
212    scp->xoff = 0;
213    scp->yoff = 0;
214    scp->xpixel = scp->xsize*8;
215    scp->ypixel = scp->ysize*fontsize;
216    scp->font = font;
217    scp->font_size = fontsize;
218    scp->font_width = fontwidth;
219
220    /* allocate buffers */
221    sc_alloc_scr_buffer(scp, TRUE, TRUE);
222    sc_init_emulator(scp, NULL);
223#ifndef SC_NO_CUTPASTE
224    sc_alloc_cut_buffer(scp, FALSE);
225#endif
226#ifndef SC_NO_HISTORY
227    sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
228#endif
229    splx(s);
230
231    if (scp == scp->sc->cur_scp)
232	set_mode(scp);
233    scp->status &= ~UNKNOWN_MODE;
234
235    if (tp == NULL)
236	return 0;
237    DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
238	tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
239    if (tp->t_winsize.ws_col != scp->xsize
240	|| tp->t_winsize.ws_row != scp->ysize) {
241	tp->t_winsize.ws_col = scp->xsize;
242	tp->t_winsize.ws_row = scp->ysize;
243
244	tty_signal_pgrp(tp, SIGWINCH);
245    }
246
247    return 0;
248}
249
250int
251sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
252{
253#ifdef SC_NO_MODE_CHANGE
254    return ENODEV;
255#else
256    video_info_t info;
257    int error;
258    int s;
259
260    if (vidd_get_info(scp->sc->adp, mode, &info))
261	return ENODEV;
262
263    /* stop screen saver, etc */
264    s = spltty();
265    if ((error = sc_clean_up(scp))) {
266	splx(s);
267	return error;
268    }
269
270    if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
271	splx(s);
272	return ENODEV;
273    }
274
275    /* set up scp */
276    scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
277    scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
278    scp->mode = mode;
279    /*
280     * Don't change xsize and ysize; preserve the previous vty
281     * and history buffers.
282     */
283    scp->xoff = 0;
284    scp->yoff = 0;
285    scp->xpixel = info.vi_width;
286    scp->ypixel = info.vi_height;
287    scp->font = NULL;
288    scp->font_size = 0;
289#ifndef SC_NO_SYSMOUSE
290    /* move the mouse cursor at the center of the screen */
291    sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
292#endif
293    sc_init_emulator(scp, NULL);
294    splx(s);
295
296    if (scp == scp->sc->cur_scp)
297	set_mode(scp);
298    /* clear_graphics();*/
299    scp->status &= ~UNKNOWN_MODE;
300
301    if (tp == NULL)
302	return 0;
303    if (tp->t_winsize.ws_xpixel != scp->xpixel
304	|| tp->t_winsize.ws_ypixel != scp->ypixel) {
305	tp->t_winsize.ws_xpixel = scp->xpixel;
306	tp->t_winsize.ws_ypixel = scp->ypixel;
307
308	tty_signal_pgrp(tp, SIGWINCH);
309    }
310
311    return 0;
312#endif /* SC_NO_MODE_CHANGE */
313}
314
315int
316sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
317		  int fontsize, int fontwidth)
318{
319#ifndef SC_PIXEL_MODE
320    return ENODEV;
321#else
322    video_info_t info;
323    ksiginfo_t ksi;
324    u_char *font;
325    int prev_ysize;
326    int error;
327    int s;
328
329    if (vidd_get_info(scp->sc->adp, scp->mode, &info))
330	return ENODEV;		/* this shouldn't happen */
331
332    /* adjust argument values */
333    if (fontsize <= 0)
334	fontsize = info.vi_cheight;
335    if (fontsize < 14)
336	fontsize = 8;
337    else if (fontsize >= 16)
338	fontsize = 16;
339    else
340	fontsize = 14;
341#ifndef SC_NO_FONT_LOADING
342    switch (fontsize) {
343    case 8:
344	if ((scp->sc->fonts_loaded & FONT_8) == 0)
345	    return (EINVAL);
346	font = scp->sc->font_8;
347	break;
348    case 14:
349	if ((scp->sc->fonts_loaded & FONT_14) == 0)
350	    return (EINVAL);
351	font = scp->sc->font_14;
352	break;
353    case 16:
354	if ((scp->sc->fonts_loaded & FONT_16) == 0)
355	    return (EINVAL);
356	font = scp->sc->font_16;
357	break;
358    }
359#else
360    font = NULL;
361#endif
362    if (xsize <= 0)
363	xsize = info.vi_width/8;
364    if (ysize <= 0)
365	ysize = info.vi_height/fontsize;
366
367    if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
368	return EINVAL;
369
370    if (!sc_support_pixel_mode(&info))
371	return ENODEV;
372
373    /* stop screen saver, etc */
374    s = spltty();
375    if ((error = sc_clean_up(scp))) {
376	splx(s);
377	return error;
378    }
379
380    if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
381	splx(s);
382	return ENODEV;
383    }
384
385#if 0
386    if (scp->tsw)
387	(*scp->tsw->te_term)(scp, scp->ts);
388    scp->tsw = NULL;
389    scp->ts = NULL;
390#endif
391
392    /* set up scp */
393#ifndef SC_NO_HISTORY
394    if (scp->history != NULL)
395	sc_hist_save(scp);
396#endif
397    prev_ysize = scp->ysize;
398    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
399    scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
400    scp->xsize = xsize;
401    scp->ysize = ysize;
402    scp->xoff = (scp->xpixel/8 - xsize)/2;
403    scp->yoff = (scp->ypixel/fontsize - ysize)/2;
404    scp->font = font;
405    scp->font_size = fontsize;
406    scp->font_width = fontwidth;
407
408    /* allocate buffers */
409    sc_alloc_scr_buffer(scp, TRUE, TRUE);
410    sc_init_emulator(scp, NULL);
411#ifndef SC_NO_CUTPASTE
412    sc_alloc_cut_buffer(scp, FALSE);
413#endif
414#ifndef SC_NO_HISTORY
415    sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
416#endif
417    splx(s);
418
419    if (scp == scp->sc->cur_scp) {
420	sc_set_border(scp, scp->border);
421	sc_set_cursor_image(scp);
422    }
423
424    scp->status &= ~UNKNOWN_MODE;
425
426    if (tp == NULL)
427	return 0;
428    if (tp->t_winsize.ws_col != scp->xsize
429	|| tp->t_winsize.ws_row != scp->ysize) {
430	tp->t_winsize.ws_col = scp->xsize;
431	tp->t_winsize.ws_row = scp->ysize;
432	if (tp->t_pgrp != NULL) {
433	    ksiginfo_init(&ksi);
434	    ksi.ksi_signo = SIGWINCH;
435	    ksi.ksi_code = SI_KERNEL;
436	    PGRP_LOCK(tp->t_pgrp);
437	    pgsignal(tp->t_pgrp, SIGWINCH, 1, &ksi);
438	    PGRP_UNLOCK(tp->t_pgrp);
439	}
440    }
441
442    return 0;
443#endif /* SC_PIXEL_MODE */
444}
445
446int
447sc_support_pixel_mode(void *arg)
448{
449#ifdef SC_PIXEL_MODE
450	video_info_t *info = arg;
451
452	if ((info->vi_flags & V_INFO_GRAPHICS) == 0)
453		return (0);
454
455	/*
456	 * We currently support the following graphic modes:
457	 *
458	 * - 4 bpp planar modes whose memory size does not exceed 64K
459	 * - 15, 16, 24 and 32 bpp linear modes
460	 */
461	switch (info->vi_mem_model) {
462	case V_INFO_MM_PLANAR:
463		if (info->vi_planes != 4)
464			break;
465		/*
466		 * A memory size >64K requires bank switching to access
467		 * the entire screen. XXX
468		 */
469		if (info->vi_width * info->vi_height / 8 > info->vi_window_size)
470			break;
471		return (1);
472	case V_INFO_MM_DIRECT:
473		if ((info->vi_flags & V_INFO_LINEAR) == 0 &&
474		    info->vi_depth != 15 && info->vi_depth != 16 &&
475		    info->vi_depth != 24 && info->vi_depth != 32)
476			break;
477		return (1);
478	case V_INFO_MM_PACKED:
479		if ((info->vi_flags & V_INFO_LINEAR) == 0 &&
480		    info->vi_depth != 8)
481			break;
482		return (1);
483	}
484#endif
485	return (0);
486}
487
488#define fb_ioctl(a, c, d)		\
489	(((a) == NULL) ? ENODEV : 	\
490			 vidd_ioctl((a), (c), (caddr_t)(d)))
491
492int
493sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
494{
495    scr_stat *scp;
496    video_adapter_t *adp;
497    video_info_t info;
498    video_adapter_info_t adp_info;
499    int error;
500    int s;
501#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
502    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
503    int ival;
504#endif
505
506    scp = SC_STAT(tp);
507    if (scp == NULL)		/* tp == SC_MOUSE */
508	return ENOIOCTL;
509    adp = scp->sc->adp;
510    if (adp == NULL)		/* shouldn't happen??? */
511	return ENODEV;
512
513    switch (cmd) {
514
515    case CONS_CURRENTADP:	/* get current adapter index */
516    case FBIO_ADAPTER:
517	return fb_ioctl(adp, FBIO_ADAPTER, data);
518
519    case CONS_CURRENT:  	/* get current adapter type */
520    case FBIO_ADPTYPE:
521	return fb_ioctl(adp, FBIO_ADPTYPE, data);
522
523    case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
524	if (((old_video_adapter_t *)data)->va_index >= 0) {
525	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
526	    if (adp == NULL)
527		return ENODEV;
528	}
529	((old_video_adapter_t *)data)->va_index = adp->va_index;
530	((old_video_adapter_t *)data)->va_type = adp->va_type;
531	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
532	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
533	((old_video_adapter_t *)data)->va_window = adp->va_window;
534	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
535	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
536	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
537	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
538	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
539	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
540	((old_video_adapter_t *)data)->va_initial_bios_mode
541	    = adp->va_initial_bios_mode;
542	return 0;
543
544    case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
545	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
546	if (adp_info.va_index >= 0) {
547	    adp = vid_get_adapter(adp_info.va_index);
548	    if (adp == NULL)
549		return ENODEV;
550	}
551	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
552	if (error == 0)
553	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
554	return error;
555
556    case CONS_ADPINFO:		/* adapter information */
557    case FBIO_ADPINFO:
558	if (((video_adapter_info_t *)data)->va_index >= 0) {
559	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
560	    if (adp == NULL)
561		return ENODEV;
562	}
563	return fb_ioctl(adp, FBIO_ADPINFO, data);
564
565    case CONS_GET:      	/* get current video mode */
566    case FBIO_GETMODE:
567	*(int *)data = scp->mode;
568	return 0;
569
570#ifndef SC_NO_MODE_CHANGE
571    case FBIO_SETMODE:		/* set video mode */
572	if (!(adp->va_flags & V_ADP_MODECHANGE))
573 	    return ENODEV;
574	info.vi_mode = *(int *)data;
575	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
576	if (error)
577	    return error;
578	if (info.vi_flags & V_INFO_GRAPHICS)
579	    return sc_set_graphics_mode(scp, tp, *(int *)data);
580	else
581	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0, 0);
582#endif /* SC_NO_MODE_CHANGE */
583
584    case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
585	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
586	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
587	if (error == 0)
588	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
589	return error;
590
591    case CONS_MODEINFO:		/* get mode information */
592    case FBIO_MODEINFO:
593	return fb_ioctl(adp, FBIO_MODEINFO, data);
594
595    case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
596	bzero(&info, sizeof(info));
597	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
598	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
599	if (error == 0)
600	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
601	return error;
602
603    case CONS_FINDMODE:		/* find a matching video mode */
604    case FBIO_FINDMODE:
605	return fb_ioctl(adp, FBIO_FINDMODE, data);
606
607#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
608    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
609    case _IO('c', 104):
610	ival = IOCPARM_IVAL(data);
611	data = (caddr_t)&ival;
612	/* FALLTHROUGH */
613#endif
614    case CONS_SETWINORG:	/* set frame buffer window origin */
615    case FBIO_SETWINORG:
616	if (scp != scp->sc->cur_scp)
617	    return ENODEV;	/* XXX */
618	return fb_ioctl(adp, FBIO_SETWINORG, data);
619
620    case FBIO_GETWINORG:	/* get frame buffer window origin */
621	if (scp != scp->sc->cur_scp)
622	    return ENODEV;	/* XXX */
623	return fb_ioctl(adp, FBIO_GETWINORG, data);
624
625    case FBIO_GETDISPSTART:
626    case FBIO_SETDISPSTART:
627    case FBIO_GETLINEWIDTH:
628    case FBIO_SETLINEWIDTH:
629	if (scp != scp->sc->cur_scp)
630	    return ENODEV;	/* XXX */
631	return fb_ioctl(adp, cmd, data);
632
633    case FBIO_GETPALETTE:
634    case FBIO_SETPALETTE:
635    case FBIOPUTCMAP:
636    case FBIOGETCMAP:
637    case FBIOGTYPE:
638    case FBIOGATTR:
639    case FBIOSVIDEO:
640    case FBIOGVIDEO:
641    case FBIOSCURSOR:
642    case FBIOGCURSOR:
643    case FBIOSCURPOS:
644    case FBIOGCURPOS:
645    case FBIOGCURMAX:
646	if (scp != scp->sc->cur_scp)
647	    return ENODEV;	/* XXX */
648	return fb_ioctl(adp, cmd, data);
649
650    case FBIO_BLANK:
651	if (scp != scp->sc->cur_scp)
652	    return ENODEV;	/* XXX */
653	return fb_ioctl(adp, cmd, data);
654
655#ifndef SC_NO_MODE_CHANGE
656    /* generic text modes */
657    case SW_TEXT_80x25:	case SW_TEXT_80x30:
658    case SW_TEXT_80x43: case SW_TEXT_80x50:
659    case SW_TEXT_80x60:
660	/* FALLTHROUGH */
661
662    /* VGA TEXT MODES */
663    case SW_VGA_C40x25:
664    case SW_VGA_C80x25: case SW_VGA_M80x25:
665    case SW_VGA_C80x30: case SW_VGA_M80x30:
666    case SW_VGA_C80x50: case SW_VGA_M80x50:
667    case SW_VGA_C80x60: case SW_VGA_M80x60:
668    case SW_VGA_C90x25: case SW_VGA_M90x25:
669    case SW_VGA_C90x30: case SW_VGA_M90x30:
670    case SW_VGA_C90x43: case SW_VGA_M90x43:
671    case SW_VGA_C90x50: case SW_VGA_M90x50:
672    case SW_VGA_C90x60: case SW_VGA_M90x60:
673    case SW_B40x25:     case SW_C40x25:
674    case SW_B80x25:     case SW_C80x25:
675    case SW_ENH_B40x25: case SW_ENH_C40x25:
676    case SW_ENH_B80x25: case SW_ENH_C80x25:
677    case SW_ENH_B80x43: case SW_ENH_C80x43:
678    case SW_EGAMONO80x25:
679
680#ifdef PC98
681    /* PC98 TEXT MODES */
682    case SW_PC98_80x25:
683    case SW_PC98_80x30:
684#endif
685	if (!(adp->va_flags & V_ADP_MODECHANGE))
686 	    return ENODEV;
687	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0, 0);
688
689    /* GRAPHICS MODES */
690    case SW_BG320:     case SW_BG640:
691    case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
692    case SW_CG640x350: case SW_ENH_CG640:
693    case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
694    case SW_VGA_MODEX:
695#ifdef PC98
696    /* PC98 GRAPHICS MODES */
697    case SW_PC98_EGC640x400:	case SW_PC98_PEGC640x400:
698    case SW_PC98_PEGC640x480:
699#endif
700	if (!(adp->va_flags & V_ADP_MODECHANGE))
701	    return ENODEV;
702	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
703#endif /* SC_NO_MODE_CHANGE */
704
705#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
706    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
707    case _IO('K', 10):
708	ival = IOCPARM_IVAL(data);
709	data = (caddr_t)&ival;
710	/* FALLTHROUGH */
711#endif
712    case KDSETMODE:     	/* set current mode of this (virtual) console */
713	switch (*(int *)data) {
714	case KD_TEXT:   	/* switch to TEXT (known) mode */
715	    /*
716	     * If scp->mode is of graphics modes, we don't know which
717	     * text mode to switch back to...
718	     */
719	    if (scp->status & GRAPHICS_MODE)
720		return EINVAL;
721	    /* restore fonts & palette ! */
722#if 0
723#ifndef SC_NO_FONT_LOADING
724	    if (ISFONTAVAIL(adp->va_flags)
725		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
726		/*
727		 * FONT KLUDGE
728		 * Don't load fonts for now... XXX
729		 */
730		if (scp->sc->fonts_loaded & FONT_8)
731		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
732		if (scp->sc->fonts_loaded & FONT_14)
733		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
734		if (scp->sc->fonts_loaded & FONT_16)
735		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
736	    }
737#endif /* SC_NO_FONT_LOADING */
738#endif
739
740#ifndef SC_NO_PALETTE_LOADING
741#ifdef SC_PIXEL_MODE
742	    if (adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
743		vidd_load_palette(adp, scp->sc->palette2);
744	    else
745#endif
746	    vidd_load_palette(adp, scp->sc->palette);
747#endif
748
749#ifndef PC98
750	    /* move hardware cursor out of the way */
751	    vidd_set_hw_cursor(adp, -1, -1);
752#endif
753
754	    /* FALLTHROUGH */
755
756	case KD_TEXT1:  	/* switch to TEXT (known) mode */
757	    /*
758	     * If scp->mode is of graphics modes, we don't know which
759	     * text/pixel mode to switch back to...
760	     */
761	    if (scp->status & GRAPHICS_MODE)
762		return EINVAL;
763	    s = spltty();
764	    if ((error = sc_clean_up(scp))) {
765		splx(s);
766		return error;
767	    }
768#ifndef PC98
769	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
770	    splx(s);
771	    /* no restore fonts & palette */
772	    if (scp == scp->sc->cur_scp)
773		set_mode(scp);
774	    sc_clear_screen(scp);
775	    scp->status &= ~UNKNOWN_MODE;
776#else /* PC98 */
777	    scp->status &= ~UNKNOWN_MODE;
778	    /* no restore fonts & palette */
779	    if (scp == scp->sc->cur_scp)
780		set_mode(scp);
781	    sc_clear_screen(scp);
782	    splx(s);
783#endif /* PC98 */
784	    return 0;
785
786#ifdef SC_PIXEL_MODE
787	case KD_PIXEL:		/* pixel (raster) display */
788	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
789		return EINVAL;
790	    if (scp->status & GRAPHICS_MODE)
791		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
792					 scp->font_size, scp->font_width);
793	    s = spltty();
794	    if ((error = sc_clean_up(scp))) {
795		splx(s);
796		return error;
797	    }
798	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
799	    splx(s);
800	    if (scp == scp->sc->cur_scp) {
801		set_mode(scp);
802#ifndef SC_NO_PALETTE_LOADING
803		if (adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
804		    vidd_load_palette(adp, scp->sc->palette2);
805		else
806		    vidd_load_palette(adp, scp->sc->palette);
807#endif
808	    }
809	    sc_clear_screen(scp);
810	    scp->status &= ~UNKNOWN_MODE;
811	    return 0;
812#endif /* SC_PIXEL_MODE */
813
814	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
815	    s = spltty();
816	    if ((error = sc_clean_up(scp))) {
817		splx(s);
818		return error;
819	    }
820	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
821	    splx(s);
822#ifdef PC98
823	    if (scp == scp->sc->cur_scp)
824		set_mode(scp);
825#endif
826	    return 0;
827
828	default:
829	    return EINVAL;
830	}
831	/* NOT REACHED */
832
833#ifdef SC_PIXEL_MODE
834    case KDRASTER:		/* set pixel (raster) display mode */
835	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
836	    return ENODEV;
837	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
838				 ((int *)data)[2], 8);
839#endif /* SC_PIXEL_MODE */
840
841    case KDGETMODE:     	/* get current mode of this (virtual) console */
842	/*
843	 * From the user program's point of view, KD_PIXEL is the same
844	 * as KD_TEXT...
845	 */
846	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
847	return 0;
848
849#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
850    defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
851    case _IO('K', 13):
852	ival = IOCPARM_IVAL(data);
853	data = (caddr_t)&ival;
854	/* FALLTHROUGH */
855#endif
856    case KDSBORDER:     	/* set border color of this (virtual) console */
857	scp->border = *(int *)data;
858	if (scp == scp->sc->cur_scp)
859	    sc_set_border(scp, scp->border);
860	return 0;
861    }
862
863    return ENOIOCTL;
864}
865
866static LIST_HEAD(, sc_renderer) sc_rndr_list =
867	LIST_HEAD_INITIALIZER(sc_rndr_list);
868
869int
870sc_render_add(sc_renderer_t *rndr)
871{
872	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
873	return 0;
874}
875
876int
877sc_render_remove(sc_renderer_t *rndr)
878{
879	/*
880	LIST_REMOVE(rndr, link);
881	*/
882	return EBUSY;	/* XXX */
883}
884
885sc_rndr_sw_t
886*sc_render_match(scr_stat *scp, char *name, int mode)
887{
888	const sc_renderer_t **list;
889	const sc_renderer_t *p;
890
891	if (!LIST_EMPTY(&sc_rndr_list)) {
892		LIST_FOREACH(p, &sc_rndr_list, link) {
893			if ((strcmp(p->name, name) == 0)
894				&& (mode == p->mode)) {
895				scp->status &=
896				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
897				return p->rndrsw;
898			}
899		}
900	} else {
901		SET_FOREACH(list, scrndr_set) {
902			p = *list;
903			if ((strcmp(p->name, name) == 0)
904				&& (mode == p->mode)) {
905				scp->status &=
906				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
907				return p->rndrsw;
908			}
909		}
910	}
911
912	return NULL;
913}
914