xref: /freebsd/sys/dev/syscons/scvidctl.c (revision 0fca6ea1d4eea4c934cfff25ac9ee8ad6fe95583)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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 #include "opt_syscons.h"
34 
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/conf.h>
38 #include <sys/signalvar.h>
39 #include <sys/tty.h>
40 #include <sys/kernel.h>
41 #include <sys/fbio.h>
42 #include <sys/consio.h>
43 #include <sys/filedesc.h>
44 #include <sys/lock.h>
45 #include <sys/sx.h>
46 #include <sys/mutex.h>
47 #include <sys/proc.h>
48 
49 #include <dev/fb/fbreg.h>
50 #include <dev/syscons/syscons.h>
51 
52 SET_DECLARE(scrndr_set, const sc_renderer_t);
53 
54 /* for compatibility with previous versions */
55 /* 3.0-RELEASE used the following structure */
56 typedef struct old_video_adapter {
57     int			va_index;
58     int			va_type;
59     int			va_flags;
60 /* flag bits are the same as the -CURRENT
61 #define V_ADP_COLOR	(1<<0)
62 #define V_ADP_MODECHANGE (1<<1)
63 #define V_ADP_STATESAVE	(1<<2)
64 #define V_ADP_STATELOAD	(1<<3)
65 #define V_ADP_FONT	(1<<4)
66 #define V_ADP_PALETTE	(1<<5)
67 #define V_ADP_BORDER	(1<<6)
68 #define V_ADP_VESA	(1<<7)
69 */
70     int			va_crtc_addr;
71     u_int		va_window;	/* virtual address */
72     size_t		va_window_size;
73     size_t		va_window_gran;
74     u_int		va_buffer;	/* virtual address */
75     size_t		va_buffer_size;
76     int			va_initial_mode;
77     int			va_initial_bios_mode;
78     int			va_mode;
79 } old_video_adapter_t;
80 
81 #define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
82 
83 /* 3.1-RELEASE used the following structure */
84 typedef struct old_video_adapter_info {
85     int			va_index;
86     int			va_type;
87     char		va_name[16];
88     int			va_unit;
89     int			va_flags;
90     int			va_io_base;
91     int			va_io_size;
92     int			va_crtc_addr;
93     int			va_mem_base;
94     int			va_mem_size;
95     u_int		va_window;	/* virtual address */
96     size_t		va_window_size;
97     size_t		va_window_gran;
98     u_int		va_buffer;
99     size_t		va_buffer_size;
100     int			va_initial_mode;
101     int			va_initial_bios_mode;
102     int			va_mode;
103     int			va_line_width;
104 } old_video_adapter_info_t;
105 
106 #define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
107 
108 /* 3.0-RELEASE and 3.1-RELEASE used the following structure */
109 typedef struct old_video_info {
110     int			vi_mode;
111     int			vi_flags;
112 /* flag bits are the same as the -CURRENT
113 #define V_INFO_COLOR	(1<<0)
114 #define V_INFO_GRAPHICS	(1<<1)
115 #define V_INFO_LINEAR	(1<<2)
116 #define V_INFO_VESA	(1<<3)
117 */
118     int			vi_width;
119     int			vi_height;
120     int			vi_cwidth;
121     int			vi_cheight;
122     int			vi_depth;
123     int			vi_planes;
124     u_int		vi_window;	/* physical address */
125     size_t		vi_window_size;
126     size_t		vi_window_gran;
127     u_int		vi_buffer;	/* physical address */
128     size_t		vi_buffer_size;
129 } old_video_info_t;
130 
131 #define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
132 #define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
133 
134 int
135 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
136 		 int fontsize, int fontwidth)
137 {
138     video_info_t info;
139     struct winsize wsz;
140     u_char *font;
141 #ifndef SC_NO_HISTORY
142     int prev_ysize;
143 #endif
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     prev_ysize = scp->ysize;
204 #endif
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 #ifndef SC_NO_HISTORY
317     int prev_ysize;
318 #endif
319     int error;
320     int s;
321 
322     if (vidd_get_info(scp->sc->adp, scp->mode, &info))
323 	return ENODEV;		/* this shouldn't happen */
324 
325     /* adjust argument values */
326     if (fontsize <= 0)
327 	fontsize = info.vi_cheight;
328     if (fontsize < 14)
329 	fontsize = 8;
330     else if (fontsize >= 16)
331 	fontsize = 16;
332     else
333 	fontsize = 14;
334 #ifndef SC_NO_FONT_LOADING
335     switch (fontsize) {
336     case 8:
337 	if ((scp->sc->fonts_loaded & FONT_8) == 0)
338 	    return (EINVAL);
339 	font = scp->sc->font_8;
340 	break;
341     case 14:
342 	if ((scp->sc->fonts_loaded & FONT_14) == 0)
343 	    return (EINVAL);
344 	font = scp->sc->font_14;
345 	break;
346     case 16:
347 	if ((scp->sc->fonts_loaded & FONT_16) == 0)
348 	    return (EINVAL);
349 	font = scp->sc->font_16;
350 	break;
351     }
352 #else
353     font = NULL;
354 #endif
355     if (xsize <= 0)
356 	xsize = info.vi_width/8;
357     if (ysize <= 0)
358 	ysize = info.vi_height/fontsize;
359 
360     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
361 	return EINVAL;
362 
363     if (!sc_support_pixel_mode(&info))
364 	return ENODEV;
365 
366     /* stop screen saver, etc */
367     s = spltty();
368     if ((error = sc_clean_up(scp))) {
369 	splx(s);
370 	return error;
371     }
372 
373     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
374 	splx(s);
375 	return ENODEV;
376     }
377 
378 #if 0
379     if (scp->tsw)
380 	(*scp->tsw->te_term)(scp, scp->ts);
381     scp->tsw = NULL;
382     scp->ts = NULL;
383 #endif
384 
385     /* set up scp */
386 #ifndef SC_NO_HISTORY
387     if (scp->history != NULL)
388 	sc_hist_save(scp);
389     prev_ysize = scp->ysize;
390 #endif
391     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
392     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
393     scp->xsize = xsize;
394     scp->ysize = ysize;
395     scp->xoff = (scp->xpixel/8 - xsize)/2;
396     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
397     scp->font = font;
398     scp->font_size = fontsize;
399     scp->font_width = fontwidth;
400 
401     /* allocate buffers */
402     sc_alloc_scr_buffer(scp, TRUE, TRUE);
403     sc_init_emulator(scp, NULL);
404 #ifndef SC_NO_CUTPASTE
405     sc_alloc_cut_buffer(scp, FALSE);
406 #endif
407 #ifndef SC_NO_HISTORY
408     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
409 #endif
410     splx(s);
411 
412     if (scp == scp->sc->cur_scp) {
413 	sc_set_border(scp, scp->border);
414 	sc_set_cursor_image(scp);
415     }
416 
417     scp->status &= ~UNKNOWN_MODE;
418 
419     if (tp == NULL)
420 	return 0;
421     wsz.ws_col = scp->xsize;
422     wsz.ws_row = scp->ysize;
423     tty_set_winsize(tp, &wsz);
424     return 0;
425 #endif /* SC_PIXEL_MODE */
426 }
427 
428 int
429 sc_support_pixel_mode(void *arg)
430 {
431 #ifdef SC_PIXEL_MODE
432 	video_info_t *info = arg;
433 
434 	if ((info->vi_flags & V_INFO_GRAPHICS) == 0)
435 		return (0);
436 
437 	/*
438 	 * We currently support the following graphic modes:
439 	 *
440 	 * - 4 bpp planar modes whose memory size does not exceed 64K
441 	 * - 15, 16, 24 and 32 bpp linear modes
442 	 */
443 	switch (info->vi_mem_model) {
444 	case V_INFO_MM_PLANAR:
445 		if (info->vi_planes != 4)
446 			break;
447 		/*
448 		 * A memory size >64K requires bank switching to access
449 		 * the entire screen. XXX
450 		 */
451 		if (info->vi_width * info->vi_height / 8 > info->vi_window_size)
452 			break;
453 		return (1);
454 	case V_INFO_MM_DIRECT:
455 		if ((info->vi_flags & V_INFO_LINEAR) == 0 &&
456 		    info->vi_depth != 15 && info->vi_depth != 16 &&
457 		    info->vi_depth != 24 && info->vi_depth != 32)
458 			break;
459 		return (1);
460 	case V_INFO_MM_PACKED:
461 		if ((info->vi_flags & V_INFO_LINEAR) == 0 &&
462 		    info->vi_depth != 8)
463 			break;
464 		return (1);
465 	}
466 #endif
467 	return (0);
468 }
469 
470 #define fb_ioctl(a, c, d)		\
471 	(((a) == NULL) ? ENODEV : 	\
472 			 vidd_ioctl((a), (c), (caddr_t)(d)))
473 
474 int
475 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, struct thread *td)
476 {
477     scr_stat *scp;
478     video_adapter_t *adp;
479     video_info_t info;
480     video_adapter_info_t adp_info;
481     int error;
482     int s;
483 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
484     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
485     int ival;
486 #endif
487 
488     scp = SC_STAT(tp);
489     if (scp == NULL)		/* tp == SC_MOUSE */
490 	return ENOIOCTL;
491     adp = scp->sc->adp;
492     if (adp == NULL)		/* shouldn't happen??? */
493 	return ENODEV;
494 
495     switch (cmd) {
496     case CONS_CURRENTADP:	/* get current adapter index */
497     case FBIO_ADAPTER:
498 	return fb_ioctl(adp, FBIO_ADAPTER, data);
499 
500     case CONS_CURRENT:  	/* get current adapter type */
501     case FBIO_ADPTYPE:
502 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
503 
504     case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
505 	if (((old_video_adapter_t *)data)->va_index >= 0) {
506 	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
507 	    if (adp == NULL)
508 		return ENODEV;
509 	}
510 	((old_video_adapter_t *)data)->va_index = adp->va_index;
511 	((old_video_adapter_t *)data)->va_type = adp->va_type;
512 	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
513 	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
514 	((old_video_adapter_t *)data)->va_window = adp->va_window;
515 	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
516 	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
517 	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
518 	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
519 	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
520 	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
521 	((old_video_adapter_t *)data)->va_initial_bios_mode
522 	    = adp->va_initial_bios_mode;
523 	return 0;
524 
525     case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
526 	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
527 	if (adp_info.va_index >= 0) {
528 	    adp = vid_get_adapter(adp_info.va_index);
529 	    if (adp == NULL)
530 		return ENODEV;
531 	}
532 	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
533 	if (error == 0)
534 	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
535 	return error;
536 
537     case CONS_ADPINFO:		/* adapter information */
538     case FBIO_ADPINFO:
539 	if (((video_adapter_info_t *)data)->va_index >= 0) {
540 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
541 	    if (adp == NULL)
542 		return ENODEV;
543 	}
544 	return fb_ioctl(adp, FBIO_ADPINFO, data);
545 
546     case CONS_GET:      	/* get current video mode */
547     case FBIO_GETMODE:
548 	*(int *)data = scp->mode;
549 	return 0;
550 
551 #ifndef SC_NO_MODE_CHANGE
552     case FBIO_SETMODE:		/* set video mode */
553 	if (!(adp->va_flags & V_ADP_MODECHANGE))
554  	    return ENODEV;
555 	info.vi_mode = *(int *)data;
556 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
557 	if (error)
558 	    return error;
559 	if (info.vi_flags & V_INFO_GRAPHICS)
560 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
561 	else
562 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0, 0);
563 #endif /* SC_NO_MODE_CHANGE */
564 
565     case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
566 	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
567 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
568 	if (error == 0)
569 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
570 	return error;
571 
572     case CONS_MODEINFO:		/* get mode information */
573     case FBIO_MODEINFO:
574 	return fb_ioctl(adp, FBIO_MODEINFO, data);
575 
576     case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
577 	bzero(&info, sizeof(info));
578 	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
579 	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
580 	if (error == 0)
581 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
582 	return error;
583 
584     case CONS_FINDMODE:		/* find a matching video mode */
585     case FBIO_FINDMODE:
586 	return fb_ioctl(adp, FBIO_FINDMODE, data);
587 
588 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
589     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
590     case _IO('c', 104):
591 	ival = IOCPARM_IVAL(data);
592 	data = (caddr_t)&ival;
593 	/* FALLTHROUGH */
594 #endif
595     case CONS_SETWINORG:	/* set frame buffer window origin */
596     case FBIO_SETWINORG:
597 	if (scp != scp->sc->cur_scp)
598 	    return ENODEV;	/* XXX */
599 	return fb_ioctl(adp, FBIO_SETWINORG, data);
600 
601     case FBIO_GETWINORG:	/* get frame buffer window origin */
602 	if (scp != scp->sc->cur_scp)
603 	    return ENODEV;	/* XXX */
604 	return fb_ioctl(adp, FBIO_GETWINORG, data);
605 
606     case FBIO_GETDISPSTART:
607     case FBIO_SETDISPSTART:
608     case FBIO_GETLINEWIDTH:
609     case FBIO_SETLINEWIDTH:
610 	if (scp != scp->sc->cur_scp)
611 	    return ENODEV;	/* XXX */
612 	return fb_ioctl(adp, cmd, data);
613 
614     case FBIO_GETPALETTE:
615     case FBIO_SETPALETTE:
616     case FBIOPUTCMAP:
617     case FBIOGETCMAP:
618     case FBIOGTYPE:
619 	if (scp != scp->sc->cur_scp)
620 	    return ENODEV;	/* XXX */
621 	return fb_ioctl(adp, cmd, data);
622 
623     case FBIO_BLANK:
624 	if (scp != scp->sc->cur_scp)
625 	    return ENODEV;	/* XXX */
626 	return fb_ioctl(adp, cmd, data);
627 
628 #ifndef SC_NO_MODE_CHANGE
629     /* generic text modes */
630     case SW_TEXT_80x25:	case SW_TEXT_80x30:
631     case SW_TEXT_80x43: case SW_TEXT_80x50:
632     case SW_TEXT_80x60:
633 	/* FALLTHROUGH */
634 
635     /* VGA TEXT MODES */
636     case SW_VGA_C40x25:
637     case SW_VGA_C80x25: case SW_VGA_M80x25:
638     case SW_VGA_C80x30: case SW_VGA_M80x30:
639     case SW_VGA_C80x50: case SW_VGA_M80x50:
640     case SW_VGA_C80x60: case SW_VGA_M80x60:
641     case SW_VGA_C90x25: case SW_VGA_M90x25:
642     case SW_VGA_C90x30: case SW_VGA_M90x30:
643     case SW_VGA_C90x43: case SW_VGA_M90x43:
644     case SW_VGA_C90x50: case SW_VGA_M90x50:
645     case SW_VGA_C90x60: case SW_VGA_M90x60:
646     case SW_B40x25:     case SW_C40x25:
647     case SW_B80x25:     case SW_C80x25:
648     case SW_ENH_B40x25: case SW_ENH_C40x25:
649     case SW_ENH_B80x25: case SW_ENH_C80x25:
650     case SW_ENH_B80x43: case SW_ENH_C80x43:
651     case SW_EGAMONO80x25:
652 	if (!(adp->va_flags & V_ADP_MODECHANGE))
653  	    return ENODEV;
654 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0, 0);
655 
656     /* GRAPHICS MODES */
657     case SW_BG320:     case SW_BG640:
658     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
659     case SW_CG640x350: case SW_ENH_CG640:
660     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
661     case SW_VGA_MODEX:
662 	if (!(adp->va_flags & V_ADP_MODECHANGE))
663 	    return ENODEV;
664 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
665 #endif /* SC_NO_MODE_CHANGE */
666 
667 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
668     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
669     case _IO('K', 10):
670 	ival = IOCPARM_IVAL(data);
671 	data = (caddr_t)&ival;
672 	/* FALLTHROUGH */
673 #endif
674     case KDSETMODE:     	/* set current mode of this (virtual) console */
675 	switch (*(int *)data) {
676 	case KD_TEXT:   	/* switch to TEXT (known) mode */
677 	    /*
678 	     * If scp->mode is of graphics modes, we don't know which
679 	     * text mode to switch back to...
680 	     */
681 	    if (scp->status & GRAPHICS_MODE)
682 		return EINVAL;
683 	    /* restore fonts & palette ! */
684 #if 0
685 #ifndef SC_NO_FONT_LOADING
686 	    if (ISFONTAVAIL(adp->va_flags)
687 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
688 		/*
689 		 * FONT KLUDGE
690 		 * Don't load fonts for now... XXX
691 		 */
692 		if (scp->sc->fonts_loaded & FONT_8)
693 		    sc_load_font(scp, 0, 8, 8, scp->sc->font_8, 0, 256);
694 		if (scp->sc->fonts_loaded & FONT_14)
695 		    sc_load_font(scp, 0, 14, 8, scp->sc->font_14, 0, 256);
696 		if (scp->sc->fonts_loaded & FONT_16)
697 		    sc_load_font(scp, 0, 16, 8, scp->sc->font_16, 0, 256);
698 	    }
699 #endif /* SC_NO_FONT_LOADING */
700 #endif
701 
702 #ifndef SC_NO_PALETTE_LOADING
703 #ifdef SC_PIXEL_MODE
704 	    if (adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
705 		vidd_load_palette(adp, scp->sc->palette2);
706 	    else
707 #endif
708 	    vidd_load_palette(adp, scp->sc->palette);
709 #endif
710 
711 	    /* move hardware cursor out of the way */
712 	    vidd_set_hw_cursor(adp, -1, -1);
713 
714 	    /* FALLTHROUGH */
715 
716 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
717 	    /*
718 	     * If scp->mode is of graphics modes, we don't know which
719 	     * text/pixel mode to switch back to...
720 	     */
721 	    if (scp->status & GRAPHICS_MODE)
722 		return EINVAL;
723 	    s = spltty();
724 	    if ((error = sc_clean_up(scp))) {
725 		splx(s);
726 		return error;
727 	    }
728 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
729 	    splx(s);
730 	    /* no restore fonts & palette */
731 	    if (scp == scp->sc->cur_scp)
732 		set_mode(scp);
733 	    sc_clear_screen(scp);
734 	    scp->status &= ~UNKNOWN_MODE;
735 	    return 0;
736 
737 #ifdef SC_PIXEL_MODE
738 	case KD_PIXEL:		/* pixel (raster) display */
739 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
740 		return EINVAL;
741 	    if (scp->status & GRAPHICS_MODE)
742 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
743 					 scp->font_size, scp->font_width);
744 	    s = spltty();
745 	    if ((error = sc_clean_up(scp))) {
746 		splx(s);
747 		return error;
748 	    }
749 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
750 	    splx(s);
751 	    if (scp == scp->sc->cur_scp) {
752 		set_mode(scp);
753 #ifndef SC_NO_PALETTE_LOADING
754 		if (adp->va_info.vi_mem_model == V_INFO_MM_DIRECT)
755 		    vidd_load_palette(adp, scp->sc->palette2);
756 		else
757 		    vidd_load_palette(adp, scp->sc->palette);
758 #endif
759 	    }
760 	    sc_clear_screen(scp);
761 	    scp->status &= ~UNKNOWN_MODE;
762 	    return 0;
763 #endif /* SC_PIXEL_MODE */
764 
765 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
766 	    s = spltty();
767 	    if ((error = sc_clean_up(scp))) {
768 		splx(s);
769 		return error;
770 	    }
771 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
772 	    splx(s);
773 	    return 0;
774 
775 	default:
776 	    return EINVAL;
777 	}
778 	/* NOT REACHED */
779 
780 #ifdef SC_PIXEL_MODE
781     case KDRASTER:		/* set pixel (raster) display mode */
782 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
783 	    return ENODEV;
784 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
785 				 ((int *)data)[2], 8);
786 #endif /* SC_PIXEL_MODE */
787 
788     case KDGETMODE:     	/* get current mode of this (virtual) console */
789 	/*
790 	 * From the user program's point of view, KD_PIXEL is the same
791 	 * as KD_TEXT...
792 	 */
793 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
794 	return 0;
795 
796 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
797     defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
798     case _IO('K', 13):
799 	ival = IOCPARM_IVAL(data);
800 	data = (caddr_t)&ival;
801 	/* FALLTHROUGH */
802 #endif
803     case KDSBORDER:     	/* set border color of this (virtual) console */
804 	scp->border = *(int *)data;
805 	if (scp == scp->sc->cur_scp)
806 	    sc_set_border(scp, scp->border);
807 	return 0;
808     }
809 
810     return ENOIOCTL;
811 }
812 
813 static LIST_HEAD(, sc_renderer) sc_rndr_list =
814 	LIST_HEAD_INITIALIZER(sc_rndr_list);
815 
816 int
817 sc_render_add(sc_renderer_t *rndr)
818 {
819 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
820 	return 0;
821 }
822 
823 int
824 sc_render_remove(sc_renderer_t *rndr)
825 {
826 	/*
827 	LIST_REMOVE(rndr, link);
828 	*/
829 	return EBUSY;	/* XXX */
830 }
831 
832 sc_rndr_sw_t
833 *sc_render_match(scr_stat *scp, char *name, int mode)
834 {
835 	const sc_renderer_t **list;
836 	const sc_renderer_t *p;
837 
838 	if (!LIST_EMPTY(&sc_rndr_list)) {
839 		LIST_FOREACH(p, &sc_rndr_list, link) {
840 			if ((strcmp(p->name, name) == 0)
841 				&& (mode == p->mode)) {
842 				scp->status &=
843 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
844 				return p->rndrsw;
845 			}
846 		}
847 	} else {
848 		SET_FOREACH(list, scrndr_set) {
849 			p = *list;
850 			if ((strcmp(p->name, name) == 0)
851 				&& (mode == p->mode)) {
852 				scp->status &=
853 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
854 				return p->rndrsw;
855 			}
856 		}
857 	}
858 
859 	return NULL;
860 }
861