xref: /freebsd/sys/dev/syscons/scvidctl.c (revision cab6a39d7b343596a5823e65c0f7b426551ec22d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The DragonFly Project
8  * by Sascha Wildner <saw@online.de>
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer as
15  *    the first lines of this file unmodified.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
34 
35 #include "opt_syscons.h"
36 
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/conf.h>
40 #include <sys/signalvar.h>
41 #include <sys/tty.h>
42 #include <sys/kernel.h>
43 #include <sys/fbio.h>
44 #include <sys/consio.h>
45 #include <sys/filedesc.h>
46 #include <sys/lock.h>
47 #include <sys/sx.h>
48 #include <sys/mutex.h>
49 #include <sys/proc.h>
50 
51 #include <dev/fb/fbreg.h>
52 #include <dev/syscons/syscons.h>
53 
54 SET_DECLARE(scrndr_set, const sc_renderer_t);
55 
56 /* for compatibility with previous versions */
57 /* 3.0-RELEASE used the following structure */
58 typedef struct old_video_adapter {
59     int			va_index;
60     int			va_type;
61     int			va_flags;
62 /* flag bits are the same as the -CURRENT
63 #define V_ADP_COLOR	(1<<0)
64 #define V_ADP_MODECHANGE (1<<1)
65 #define V_ADP_STATESAVE	(1<<2)
66 #define V_ADP_STATELOAD	(1<<3)
67 #define V_ADP_FONT	(1<<4)
68 #define V_ADP_PALETTE	(1<<5)
69 #define V_ADP_BORDER	(1<<6)
70 #define V_ADP_VESA	(1<<7)
71 */
72     int			va_crtc_addr;
73     u_int		va_window;	/* virtual address */
74     size_t		va_window_size;
75     size_t		va_window_gran;
76     u_int		va_buffer;	/* virtual address */
77     size_t		va_buffer_size;
78     int			va_initial_mode;
79     int			va_initial_bios_mode;
80     int			va_mode;
81 } old_video_adapter_t;
82 
83 #define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
84 
85 /* 3.1-RELEASE used the following structure */
86 typedef struct old_video_adapter_info {
87     int			va_index;
88     int			va_type;
89     char		va_name[16];
90     int			va_unit;
91     int			va_flags;
92     int			va_io_base;
93     int			va_io_size;
94     int			va_crtc_addr;
95     int			va_mem_base;
96     int			va_mem_size;
97     u_int		va_window;	/* virtual address */
98     size_t		va_window_size;
99     size_t		va_window_gran;
100     u_int		va_buffer;
101     size_t		va_buffer_size;
102     int			va_initial_mode;
103     int			va_initial_bios_mode;
104     int			va_mode;
105     int			va_line_width;
106 } old_video_adapter_info_t;
107 
108 #define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
109 
110 /* 3.0-RELEASE and 3.1-RELEASE used the following structure */
111 typedef struct old_video_info {
112     int			vi_mode;
113     int			vi_flags;
114 /* flag bits are the same as the -CURRENT
115 #define V_INFO_COLOR	(1<<0)
116 #define V_INFO_GRAPHICS	(1<<1)
117 #define V_INFO_LINEAR	(1<<2)
118 #define V_INFO_VESA	(1<<3)
119 */
120     int			vi_width;
121     int			vi_height;
122     int			vi_cwidth;
123     int			vi_cheight;
124     int			vi_depth;
125     int			vi_planes;
126     u_int		vi_window;	/* physical address */
127     size_t		vi_window_size;
128     size_t		vi_window_gran;
129     u_int		vi_buffer;	/* physical address */
130     size_t		vi_buffer_size;
131 } old_video_info_t;
132 
133 #define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
134 #define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
135 
136 int
137 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
138 		 int fontsize, int fontwidth)
139 {
140     video_info_t info;
141     struct winsize wsz;
142     u_char *font;
143     int prev_ysize;
144     int error;
145     int s;
146 
147     if (vidd_get_info(scp->sc->adp, mode, &info))
148 	return ENODEV;
149 
150     /* adjust argument values */
151     if (fontwidth <= 0)
152 	fontwidth = info.vi_cwidth;
153     if (fontsize <= 0)
154 	fontsize = info.vi_cheight;
155     if (fontsize < 14)
156 	fontsize = 8;
157     else if (fontsize >= 16)
158 	fontsize = 16;
159     else
160 	fontsize = 14;
161 #ifndef SC_NO_FONT_LOADING
162     switch (fontsize) {
163     case 8:
164 	if ((scp->sc->fonts_loaded & FONT_8) == 0)
165 	    return (EINVAL);
166 	font = scp->sc->font_8;
167 	break;
168     case 14:
169 	if ((scp->sc->fonts_loaded & FONT_14) == 0)
170 	    return (EINVAL);
171 	font = scp->sc->font_14;
172 	break;
173     case 16:
174 	if ((scp->sc->fonts_loaded & FONT_16) == 0)
175 	    return (EINVAL);
176 	font = scp->sc->font_16;
177 	break;
178     }
179 #else
180     font = NULL;
181 #endif
182     if ((xsize <= 0) || (xsize > info.vi_width))
183 	xsize = info.vi_width;
184     if ((ysize <= 0) || (ysize > info.vi_height))
185 	ysize = info.vi_height;
186 
187     /* stop screen saver, etc */
188     s = spltty();
189     if ((error = sc_clean_up(scp))) {
190 	splx(s);
191 	return error;
192     }
193 
194     if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
195 	splx(s);
196 	return ENODEV;
197     }
198 
199     /* set up scp */
200 #ifndef SC_NO_HISTORY
201     if (scp->history != NULL)
202 	sc_hist_save(scp);
203 #endif
204     prev_ysize = scp->ysize;
205     /*
206      * This is a kludge to fend off scrn_update() while we
207      * muck around with scp. XXX
208      */
209     scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
210     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
211     scp->mode = mode;
212     scp->xsize = xsize;
213     scp->ysize = ysize;
214     scp->xoff = 0;
215     scp->yoff = 0;
216     scp->xpixel = scp->xsize*8;
217     scp->ypixel = scp->ysize*fontsize;
218     scp->font = font;
219     scp->font_size = fontsize;
220     scp->font_width = fontwidth;
221 
222     /* allocate buffers */
223     sc_alloc_scr_buffer(scp, TRUE, TRUE);
224     sc_init_emulator(scp, NULL);
225 #ifndef SC_NO_CUTPASTE
226     sc_alloc_cut_buffer(scp, FALSE);
227 #endif
228 #ifndef SC_NO_HISTORY
229     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
230 #endif
231     splx(s);
232 
233     if (scp == scp->sc->cur_scp)
234 	set_mode(scp);
235     scp->status &= ~UNKNOWN_MODE;
236 
237     if (tp == NULL)
238 	return 0;
239     wsz.ws_col = scp->xsize;
240     wsz.ws_row = scp->ysize;
241     tty_set_winsize(tp, &wsz);
242     return 0;
243 }
244 
245 int
246 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
247 {
248 #ifdef SC_NO_MODE_CHANGE
249     return ENODEV;
250 #else
251     video_info_t info;
252     struct winsize wsz;
253     int error;
254     int s;
255 
256     if (vidd_get_info(scp->sc->adp, mode, &info))
257 	return ENODEV;
258 
259     /* stop screen saver, etc */
260     s = spltty();
261     if ((error = sc_clean_up(scp))) {
262 	splx(s);
263 	return error;
264     }
265 
266     if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
267 	splx(s);
268 	return ENODEV;
269     }
270 
271     /* set up scp */
272     scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
273     scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
274     scp->mode = mode;
275     /*
276      * Don't change xsize and ysize; preserve the previous vty
277      * and history buffers.
278      */
279     scp->xoff = 0;
280     scp->yoff = 0;
281     scp->xpixel = info.vi_width;
282     scp->ypixel = info.vi_height;
283     scp->font = NULL;
284     scp->font_size = 0;
285 #ifndef SC_NO_SYSMOUSE
286     /* move the mouse cursor at the center of the screen */
287     sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
288 #endif
289     sc_init_emulator(scp, NULL);
290     splx(s);
291 
292     if (scp == scp->sc->cur_scp)
293 	set_mode(scp);
294     /* clear_graphics();*/
295     scp->status &= ~UNKNOWN_MODE;
296 
297     if (tp == NULL)
298 	return 0;
299     wsz.ws_col = scp->xsize;
300     wsz.ws_row = scp->ysize;
301     tty_set_winsize(tp, &wsz);
302     return 0;
303 #endif /* SC_NO_MODE_CHANGE */
304 }
305 
306 int
307 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
308 		  int fontsize, int fontwidth)
309 {
310 #ifndef SC_PIXEL_MODE
311     return ENODEV;
312 #else
313     video_info_t info;
314     struct winsize wsz;
315     u_char *font;
316     int prev_ysize;
317     int error;
318     int s;
319 
320     if (vidd_get_info(scp->sc->adp, scp->mode, &info))
321 	return ENODEV;		/* this shouldn't happen */
322 
323     /* adjust argument values */
324     if (fontsize <= 0)
325 	fontsize = info.vi_cheight;
326     if (fontsize < 14)
327 	fontsize = 8;
328     else if (fontsize >= 16)
329 	fontsize = 16;
330     else
331 	fontsize = 14;
332 #ifndef SC_NO_FONT_LOADING
333     switch (fontsize) {
334     case 8:
335 	if ((scp->sc->fonts_loaded & FONT_8) == 0)
336 	    return (EINVAL);
337 	font = scp->sc->font_8;
338 	break;
339     case 14:
340 	if ((scp->sc->fonts_loaded & FONT_14) == 0)
341 	    return (EINVAL);
342 	font = scp->sc->font_14;
343 	break;
344     case 16:
345 	if ((scp->sc->fonts_loaded & FONT_16) == 0)
346 	    return (EINVAL);
347 	font = scp->sc->font_16;
348 	break;
349     }
350 #else
351     font = NULL;
352 #endif
353     if (xsize <= 0)
354 	xsize = info.vi_width/8;
355     if (ysize <= 0)
356 	ysize = info.vi_height/fontsize;
357 
358     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
359 	return EINVAL;
360 
361     if (!sc_support_pixel_mode(&info))
362 	return ENODEV;
363 
364     /* stop screen saver, etc */
365     s = spltty();
366     if ((error = sc_clean_up(scp))) {
367 	splx(s);
368 	return error;
369     }
370 
371     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
372 	splx(s);
373 	return ENODEV;
374     }
375 
376 #if 0
377     if (scp->tsw)
378 	(*scp->tsw->te_term)(scp, scp->ts);
379     scp->tsw = NULL;
380     scp->ts = NULL;
381 #endif
382 
383     /* set up scp */
384 #ifndef SC_NO_HISTORY
385     if (scp->history != NULL)
386 	sc_hist_save(scp);
387 #endif
388     prev_ysize = scp->ysize;
389     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
390     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
391     scp->xsize = xsize;
392     scp->ysize = ysize;
393     scp->xoff = (scp->xpixel/8 - xsize)/2;
394     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
395     scp->font = font;
396     scp->font_size = fontsize;
397     scp->font_width = fontwidth;
398 
399     /* allocate buffers */
400     sc_alloc_scr_buffer(scp, TRUE, TRUE);
401     sc_init_emulator(scp, NULL);
402 #ifndef SC_NO_CUTPASTE
403     sc_alloc_cut_buffer(scp, FALSE);
404 #endif
405 #ifndef SC_NO_HISTORY
406     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
407 #endif
408     splx(s);
409 
410     if (scp == scp->sc->cur_scp) {
411 	sc_set_border(scp, scp->border);
412 	sc_set_cursor_image(scp);
413     }
414 
415     scp->status &= ~UNKNOWN_MODE;
416 
417     if (tp == NULL)
418 	return 0;
419     wsz.ws_col = scp->xsize;
420     wsz.ws_row = scp->ysize;
421     tty_set_winsize(tp, &wsz);
422     return 0;
423 #endif /* SC_PIXEL_MODE */
424 }
425 
426 int
427 sc_support_pixel_mode(void *arg)
428 {
429 #ifdef SC_PIXEL_MODE
430 	video_info_t *info = arg;
431 
432 	if ((info->vi_flags & V_INFO_GRAPHICS) == 0)
433 		return (0);
434 
435 	/*
436 	 * We currently support the following graphic modes:
437 	 *
438 	 * - 4 bpp planar modes whose memory size does not exceed 64K
439 	 * - 15, 16, 24 and 32 bpp linear modes
440 	 */
441 	switch (info->vi_mem_model) {
442 	case V_INFO_MM_PLANAR:
443 		if (info->vi_planes != 4)
444 			break;
445 		/*
446 		 * A memory size >64K requires bank switching to access
447 		 * the entire screen. XXX
448 		 */
449 		if (info->vi_width * info->vi_height / 8 > info->vi_window_size)
450 			break;
451 		return (1);
452 	case V_INFO_MM_DIRECT:
453 		if ((info->vi_flags & V_INFO_LINEAR) == 0 &&
454 		    info->vi_depth != 15 && info->vi_depth != 16 &&
455 		    info->vi_depth != 24 && info->vi_depth != 32)
456 			break;
457 		return (1);
458 	case V_INFO_MM_PACKED:
459 		if ((info->vi_flags & V_INFO_LINEAR) == 0 &&
460 		    info->vi_depth != 8)
461 			break;
462 		return (1);
463 	}
464 #endif
465 	return (0);
466 }
467 
468 #define fb_ioctl(a, c, d)		\
469 	(((a) == NULL) ? ENODEV : 	\
470 			 vidd_ioctl((a), (c), (caddr_t)(d)))
471 
472 int
473 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
474 {
475     scr_stat *scp;
476     video_adapter_t *adp;
477     video_info_t info;
478     video_adapter_info_t adp_info;
479     int error;
480     int s;
481 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
482     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
483     int ival;
484 #endif
485 
486     scp = SC_STAT(tp);
487     if (scp == NULL)		/* tp == SC_MOUSE */
488 	return ENOIOCTL;
489     adp = scp->sc->adp;
490     if (adp == NULL)		/* shouldn't happen??? */
491 	return ENODEV;
492 
493     switch (cmd) {
494     case CONS_CURRENTADP:	/* get current adapter index */
495     case FBIO_ADAPTER:
496 	return fb_ioctl(adp, FBIO_ADAPTER, data);
497 
498     case CONS_CURRENT:  	/* get current adapter type */
499     case FBIO_ADPTYPE:
500 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
501 
502     case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
503 	if (((old_video_adapter_t *)data)->va_index >= 0) {
504 	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
505 	    if (adp == NULL)
506 		return ENODEV;
507 	}
508 	((old_video_adapter_t *)data)->va_index = adp->va_index;
509 	((old_video_adapter_t *)data)->va_type = adp->va_type;
510 	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
511 	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
512 	((old_video_adapter_t *)data)->va_window = adp->va_window;
513 	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
514 	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
515 	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
516 	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
517 	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
518 	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
519 	((old_video_adapter_t *)data)->va_initial_bios_mode
520 	    = adp->va_initial_bios_mode;
521 	return 0;
522 
523     case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
524 	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
525 	if (adp_info.va_index >= 0) {
526 	    adp = vid_get_adapter(adp_info.va_index);
527 	    if (adp == NULL)
528 		return ENODEV;
529 	}
530 	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
531 	if (error == 0)
532 	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
533 	return error;
534 
535     case CONS_ADPINFO:		/* adapter information */
536     case FBIO_ADPINFO:
537 	if (((video_adapter_info_t *)data)->va_index >= 0) {
538 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
539 	    if (adp == NULL)
540 		return ENODEV;
541 	}
542 	return fb_ioctl(adp, FBIO_ADPINFO, data);
543 
544     case CONS_GET:      	/* get current video mode */
545     case FBIO_GETMODE:
546 	*(int *)data = scp->mode;
547 	return 0;
548 
549 #ifndef SC_NO_MODE_CHANGE
550     case FBIO_SETMODE:		/* set video mode */
551 	if (!(adp->va_flags & V_ADP_MODECHANGE))
552  	    return ENODEV;
553 	info.vi_mode = *(int *)data;
554 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
555 	if (error)
556 	    return error;
557 	if (info.vi_flags & V_INFO_GRAPHICS)
558 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
559 	else
560 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0, 0);
561 #endif /* SC_NO_MODE_CHANGE */
562 
563     case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
564 	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
565 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
566 	if (error == 0)
567 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
568 	return error;
569 
570     case CONS_MODEINFO:		/* get mode information */
571     case FBIO_MODEINFO:
572 	return fb_ioctl(adp, FBIO_MODEINFO, data);
573 
574     case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
575 	bzero(&info, sizeof(info));
576 	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
577 	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
578 	if (error == 0)
579 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
580 	return error;
581 
582     case CONS_FINDMODE:		/* find a matching video mode */
583     case FBIO_FINDMODE:
584 	return fb_ioctl(adp, FBIO_FINDMODE, data);
585 
586 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
587     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
588     case _IO('c', 104):
589 	ival = IOCPARM_IVAL(data);
590 	data = (caddr_t)&ival;
591 	/* FALLTHROUGH */
592 #endif
593     case CONS_SETWINORG:	/* set frame buffer window origin */
594     case FBIO_SETWINORG:
595 	if (scp != scp->sc->cur_scp)
596 	    return ENODEV;	/* XXX */
597 	return fb_ioctl(adp, FBIO_SETWINORG, data);
598 
599     case FBIO_GETWINORG:	/* get frame buffer window origin */
600 	if (scp != scp->sc->cur_scp)
601 	    return ENODEV;	/* XXX */
602 	return fb_ioctl(adp, FBIO_GETWINORG, data);
603 
604     case FBIO_GETDISPSTART:
605     case FBIO_SETDISPSTART:
606     case FBIO_GETLINEWIDTH:
607     case FBIO_SETLINEWIDTH:
608 	if (scp != scp->sc->cur_scp)
609 	    return ENODEV;	/* XXX */
610 	return fb_ioctl(adp, cmd, data);
611 
612     case FBIO_GETPALETTE:
613     case FBIO_SETPALETTE:
614     case FBIOPUTCMAP:
615     case FBIOGETCMAP:
616     case FBIOGTYPE:
617     case FBIOGATTR:
618     case FBIOSVIDEO:
619     case FBIOGVIDEO:
620     case FBIOSCURSOR:
621     case FBIOGCURSOR:
622     case FBIOSCURPOS:
623     case FBIOGCURPOS:
624     case FBIOGCURMAX:
625 	if (scp != scp->sc->cur_scp)
626 	    return ENODEV;	/* XXX */
627 	return fb_ioctl(adp, cmd, data);
628 
629     case FBIO_BLANK:
630 	if (scp != scp->sc->cur_scp)
631 	    return ENODEV;	/* XXX */
632 	return fb_ioctl(adp, cmd, data);
633 
634 #ifndef SC_NO_MODE_CHANGE
635     /* generic text modes */
636     case SW_TEXT_80x25:	case SW_TEXT_80x30:
637     case SW_TEXT_80x43: case SW_TEXT_80x50:
638     case SW_TEXT_80x60:
639 	/* FALLTHROUGH */
640 
641     /* VGA TEXT MODES */
642     case SW_VGA_C40x25:
643     case SW_VGA_C80x25: case SW_VGA_M80x25:
644     case SW_VGA_C80x30: case SW_VGA_M80x30:
645     case SW_VGA_C80x50: case SW_VGA_M80x50:
646     case SW_VGA_C80x60: case SW_VGA_M80x60:
647     case SW_VGA_C90x25: case SW_VGA_M90x25:
648     case SW_VGA_C90x30: case SW_VGA_M90x30:
649     case SW_VGA_C90x43: case SW_VGA_M90x43:
650     case SW_VGA_C90x50: case SW_VGA_M90x50:
651     case SW_VGA_C90x60: case SW_VGA_M90x60:
652     case SW_B40x25:     case SW_C40x25:
653     case SW_B80x25:     case SW_C80x25:
654     case SW_ENH_B40x25: case SW_ENH_C40x25:
655     case SW_ENH_B80x25: case SW_ENH_C80x25:
656     case SW_ENH_B80x43: case SW_ENH_C80x43:
657     case SW_EGAMONO80x25:
658 	if (!(adp->va_flags & V_ADP_MODECHANGE))
659  	    return ENODEV;
660 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0, 0);
661 
662     /* GRAPHICS MODES */
663     case SW_BG320:     case SW_BG640:
664     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
665     case SW_CG640x350: case SW_ENH_CG640:
666     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
667     case SW_VGA_MODEX:
668 	if (!(adp->va_flags & V_ADP_MODECHANGE))
669 	    return ENODEV;
670 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
671 #endif /* SC_NO_MODE_CHANGE */
672 
673 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
674     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
675     case _IO('K', 10):
676 	ival = IOCPARM_IVAL(data);
677 	data = (caddr_t)&ival;
678 	/* FALLTHROUGH */
679 #endif
680     case KDSETMODE:     	/* set current mode of this (virtual) console */
681 	switch (*(int *)data) {
682 	case KD_TEXT:   	/* switch to TEXT (known) mode */
683 	    /*
684 	     * If scp->mode is of graphics modes, we don't know which
685 	     * text mode to switch back to...
686 	     */
687 	    if (scp->status & GRAPHICS_MODE)
688 		return EINVAL;
689 	    /* restore fonts & palette ! */
690 #if 0
691 #ifndef SC_NO_FONT_LOADING
692 	    if (ISFONTAVAIL(adp->va_flags)
693 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
694 		/*
695 		 * FONT KLUDGE
696 		 * Don't load fonts for now... XXX
697 		 */
698 		if (scp->sc->fonts_loaded & FONT_8)
699 		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
700 		if (scp->sc->fonts_loaded & FONT_14)
701 		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
702 		if (scp->sc->fonts_loaded & FONT_16)
703 		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
704 	    }
705 #endif /* SC_NO_FONT_LOADING */
706 #endif
707 
708 #ifndef SC_NO_PALETTE_LOADING
709 #ifdef SC_PIXEL_MODE
710 	    if (adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
711 		vidd_load_palette(adp, scp->sc->palette2);
712 	    else
713 #endif
714 	    vidd_load_palette(adp, scp->sc->palette);
715 #endif
716 
717 	    /* move hardware cursor out of the way */
718 	    vidd_set_hw_cursor(adp, -1, -1);
719 
720 	    /* FALLTHROUGH */
721 
722 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
723 	    /*
724 	     * If scp->mode is of graphics modes, we don't know which
725 	     * text/pixel mode to switch back to...
726 	     */
727 	    if (scp->status & GRAPHICS_MODE)
728 		return EINVAL;
729 	    s = spltty();
730 	    if ((error = sc_clean_up(scp))) {
731 		splx(s);
732 		return error;
733 	    }
734 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
735 	    splx(s);
736 	    /* no restore fonts & palette */
737 	    if (scp == scp->sc->cur_scp)
738 		set_mode(scp);
739 	    sc_clear_screen(scp);
740 	    scp->status &= ~UNKNOWN_MODE;
741 	    return 0;
742 
743 #ifdef SC_PIXEL_MODE
744 	case KD_PIXEL:		/* pixel (raster) display */
745 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
746 		return EINVAL;
747 	    if (scp->status & GRAPHICS_MODE)
748 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
749 					 scp->font_size, scp->font_width);
750 	    s = spltty();
751 	    if ((error = sc_clean_up(scp))) {
752 		splx(s);
753 		return error;
754 	    }
755 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
756 	    splx(s);
757 	    if (scp == scp->sc->cur_scp) {
758 		set_mode(scp);
759 #ifndef SC_NO_PALETTE_LOADING
760 		if (adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
761 		    vidd_load_palette(adp, scp->sc->palette2);
762 		else
763 		    vidd_load_palette(adp, scp->sc->palette);
764 #endif
765 	    }
766 	    sc_clear_screen(scp);
767 	    scp->status &= ~UNKNOWN_MODE;
768 	    return 0;
769 #endif /* SC_PIXEL_MODE */
770 
771 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
772 	    s = spltty();
773 	    if ((error = sc_clean_up(scp))) {
774 		splx(s);
775 		return error;
776 	    }
777 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
778 	    splx(s);
779 	    return 0;
780 
781 	default:
782 	    return EINVAL;
783 	}
784 	/* NOT REACHED */
785 
786 #ifdef SC_PIXEL_MODE
787     case KDRASTER:		/* set pixel (raster) display mode */
788 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
789 	    return ENODEV;
790 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
791 				 ((int *)data)[2], 8);
792 #endif /* SC_PIXEL_MODE */
793 
794     case KDGETMODE:     	/* get current mode of this (virtual) console */
795 	/*
796 	 * From the user program's point of view, KD_PIXEL is the same
797 	 * as KD_TEXT...
798 	 */
799 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
800 	return 0;
801 
802 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
803     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
804     case _IO('K', 13):
805 	ival = IOCPARM_IVAL(data);
806 	data = (caddr_t)&ival;
807 	/* FALLTHROUGH */
808 #endif
809     case KDSBORDER:     	/* set border color of this (virtual) console */
810 	scp->border = *(int *)data;
811 	if (scp == scp->sc->cur_scp)
812 	    sc_set_border(scp, scp->border);
813 	return 0;
814     }
815 
816     return ENOIOCTL;
817 }
818 
819 static LIST_HEAD(, sc_renderer) sc_rndr_list =
820 	LIST_HEAD_INITIALIZER(sc_rndr_list);
821 
822 int
823 sc_render_add(sc_renderer_t *rndr)
824 {
825 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
826 	return 0;
827 }
828 
829 int
830 sc_render_remove(sc_renderer_t *rndr)
831 {
832 	/*
833 	LIST_REMOVE(rndr, link);
834 	*/
835 	return EBUSY;	/* XXX */
836 }
837 
838 sc_rndr_sw_t
839 *sc_render_match(scr_stat *scp, char *name, int mode)
840 {
841 	const sc_renderer_t **list;
842 	const sc_renderer_t *p;
843 
844 	if (!LIST_EMPTY(&sc_rndr_list)) {
845 		LIST_FOREACH(p, &sc_rndr_list, link) {
846 			if ((strcmp(p->name, name) == 0)
847 				&& (mode == p->mode)) {
848 				scp->status &=
849 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
850 				return p->rndrsw;
851 			}
852 		}
853 	} else {
854 		SET_FOREACH(list, scrndr_set) {
855 			p = *list;
856 			if ((strcmp(p->name, name) == 0)
857 				&& (mode == p->mode)) {
858 				scp->status &=
859 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
860 				return p->rndrsw;
861 			}
862 		}
863 	}
864 
865 	return NULL;
866 }
867