xref: /freebsd/sys/dev/syscons/scvidctl.c (revision 4b2eaea43fec8e8792be611dea204071a10b655a)
1 /*-
2  * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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 as
10  *    the first lines of this file unmodified.
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  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #include "opt_syscons.h"
30 
31 #include <sys/param.h>
32 #include <sys/systm.h>
33 #include <sys/conf.h>
34 #include <sys/signalvar.h>
35 #include <sys/tty.h>
36 #include <sys/kernel.h>
37 #include <sys/fbio.h>
38 #include <sys/consio.h>
39 #include <sys/filedesc.h>
40 #include <sys/lock.h>
41 #include <sys/sx.h>
42 #include <sys/mutex.h>
43 #include <sys/proc.h>
44 
45 #include <dev/fb/fbreg.h>
46 #include <dev/syscons/syscons.h>
47 
48 SET_DECLARE(scrndr_set, const sc_renderer_t);
49 
50 /* for compatibility with previous versions */
51 /* 3.0-RELEASE used the following structure */
52 typedef struct old_video_adapter {
53     int			va_index;
54     int			va_type;
55     int			va_flags;
56 /* flag bits are the same as the -CURRENT
57 #define V_ADP_COLOR	(1<<0)
58 #define V_ADP_MODECHANGE (1<<1)
59 #define V_ADP_STATESAVE	(1<<2)
60 #define V_ADP_STATELOAD	(1<<3)
61 #define V_ADP_FONT	(1<<4)
62 #define V_ADP_PALETTE	(1<<5)
63 #define V_ADP_BORDER	(1<<6)
64 #define V_ADP_VESA	(1<<7)
65 */
66     int			va_crtc_addr;
67     u_int		va_window;	/* virtual address */
68     size_t		va_window_size;
69     size_t		va_window_gran;
70     u_int		va_buffer;	/* virtual address */
71     size_t		va_buffer_size;
72     int			va_initial_mode;
73     int			va_initial_bios_mode;
74     int			va_mode;
75 } old_video_adapter_t;
76 
77 #define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
78 
79 /* 3.1-RELEASE used the following structure */
80 typedef struct old_video_adapter_info {
81     int			va_index;
82     int			va_type;
83     char		va_name[16];
84     int			va_unit;
85     int			va_flags;
86     int			va_io_base;
87     int			va_io_size;
88     int			va_crtc_addr;
89     int			va_mem_base;
90     int			va_mem_size;
91     u_int		va_window;	/* virtual address */
92     size_t		va_window_size;
93     size_t		va_window_gran;
94     u_int		va_buffer;;
95     size_t		va_buffer_size;
96     int			va_initial_mode;
97     int			va_initial_bios_mode;
98     int			va_mode;
99     int			va_line_width;
100 } old_video_adapter_info_t;
101 
102 #define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
103 
104 /* 3.0-RELEASE and 3.1-RELEASE used the following structure */
105 typedef struct old_video_info {
106     int			vi_mode;
107     int			vi_flags;
108 /* flag bits are the same as the -CURRENT
109 #define V_INFO_COLOR	(1<<0)
110 #define V_INFO_GRAPHICS	(1<<1)
111 #define V_INFO_LINEAR	(1<<2)
112 #define V_INFO_VESA	(1<<3)
113 */
114     int			vi_width;
115     int			vi_height;
116     int			vi_cwidth;
117     int			vi_cheight;
118     int			vi_depth;
119     int			vi_planes;
120     u_int		vi_window;	/* physical address */
121     size_t		vi_window_size;
122     size_t		vi_window_gran;
123     u_int		vi_buffer;	/* physical address */
124     size_t		vi_buffer_size;
125 } old_video_info_t;
126 
127 #define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
128 #define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
129 
130 int
131 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
132 		 int fontsize)
133 {
134     video_info_t info;
135     u_char *font;
136     int prev_ysize;
137     int error;
138     int s;
139 
140     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
141 	return ENODEV;
142 
143     /* adjust argument values */
144     if (fontsize <= 0)
145 	fontsize = info.vi_cheight;
146     if (fontsize < 14) {
147 	fontsize = 8;
148 #ifndef SC_NO_FONT_LOADING
149 	if (!(scp->sc->fonts_loaded & FONT_8))
150 	    return EINVAL;
151 	font = scp->sc->font_8;
152 #else
153 	font = NULL;
154 #endif
155     } else if (fontsize >= 16) {
156 	fontsize = 16;
157 #ifndef SC_NO_FONT_LOADING
158 	if (!(scp->sc->fonts_loaded & FONT_16))
159 	    return EINVAL;
160 	font = scp->sc->font_16;
161 #else
162 	font = NULL;
163 #endif
164     } else {
165 	fontsize = 14;
166 #ifndef SC_NO_FONT_LOADING
167 	if (!(scp->sc->fonts_loaded & FONT_14))
168 	    return EINVAL;
169 	font = scp->sc->font_14;
170 #else
171 	font = NULL;
172 #endif
173     }
174     if ((xsize <= 0) || (xsize > info.vi_width))
175 	xsize = info.vi_width;
176     if ((ysize <= 0) || (ysize > info.vi_height))
177 	ysize = info.vi_height;
178 
179     /* stop screen saver, etc */
180     s = spltty();
181     if ((error = sc_clean_up(scp))) {
182 	splx(s);
183 	return error;
184     }
185 
186     if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
187 	splx(s);
188 	return ENODEV;
189     }
190 
191     /* set up scp */
192 #ifndef SC_NO_HISTORY
193     if (scp->history != NULL)
194 	sc_hist_save(scp);
195 #endif
196     prev_ysize = scp->ysize;
197     /*
198      * This is a kludge to fend off scrn_update() while we
199      * muck around with scp. XXX
200      */
201     scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
202     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
203     scp->mode = mode;
204     scp->xsize = xsize;
205     scp->ysize = ysize;
206     scp->xoff = 0;
207     scp->yoff = 0;
208     scp->xpixel = scp->xsize*8;
209     scp->ypixel = scp->ysize*fontsize;
210     scp->font = font;
211     scp->font_size = fontsize;
212 
213     /* allocate buffers */
214     sc_alloc_scr_buffer(scp, TRUE, TRUE);
215     sc_init_emulator(scp, NULL);
216 #ifndef SC_NO_CUTPASTE
217     sc_alloc_cut_buffer(scp, FALSE);
218 #endif
219 #ifndef SC_NO_HISTORY
220     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
221 #endif
222     splx(s);
223 
224     if (scp == scp->sc->cur_scp)
225 	set_mode(scp);
226     scp->status &= ~UNKNOWN_MODE;
227 
228     if (tp == NULL)
229 	return 0;
230     DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
231 	tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
232     if (tp->t_winsize.ws_col != scp->xsize
233 	|| tp->t_winsize.ws_row != scp->ysize) {
234 	tp->t_winsize.ws_col = scp->xsize;
235 	tp->t_winsize.ws_row = scp->ysize;
236 	if (tp->t_pgrp != NULL) {
237 	    PGRP_LOCK(tp->t_pgrp);
238 	    pgsignal(tp->t_pgrp, SIGWINCH, 1);
239 	    PGRP_UNLOCK(tp->t_pgrp);
240 	}
241     }
242 
243     return 0;
244 }
245 
246 int
247 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
248 {
249 #ifdef SC_NO_MODE_CHANGE
250     return ENODEV;
251 #else
252     video_info_t info;
253     int error;
254     int s;
255 
256     if ((*vidsw[scp->sc->adapter]->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     if (tp->t_winsize.ws_xpixel != scp->xpixel
300 	|| tp->t_winsize.ws_ypixel != scp->ypixel) {
301 	tp->t_winsize.ws_xpixel = scp->xpixel;
302 	tp->t_winsize.ws_ypixel = scp->ypixel;
303 	if (tp->t_pgrp != NULL) {
304 	    PGRP_LOCK(tp->t_pgrp);
305 	    pgsignal(tp->t_pgrp, SIGWINCH, 1);
306 	    PGRP_UNLOCK(tp->t_pgrp);
307 	}
308     }
309 
310     return 0;
311 #endif /* SC_NO_MODE_CHANGE */
312 }
313 
314 int
315 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
316 		  int fontsize)
317 {
318 #ifndef SC_PIXEL_MODE
319     return ENODEV;
320 #else
321     video_info_t info;
322     u_char *font;
323     int prev_ysize;
324     int error;
325     int s;
326 
327     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
328 	return ENODEV;		/* this shouldn't happen */
329 
330     /* adjust argument values */
331     if (fontsize <= 0)
332 	fontsize = info.vi_cheight;
333     if (fontsize < 14) {
334 	fontsize = 8;
335 #ifndef SC_NO_FONT_LOADING
336 	if (!(scp->sc->fonts_loaded & FONT_8))
337 	    return EINVAL;
338 	font = scp->sc->font_8;
339 #else
340 	font = NULL;
341 #endif
342     } else if (fontsize >= 16) {
343 	fontsize = 16;
344 #ifndef SC_NO_FONT_LOADING
345 	if (!(scp->sc->fonts_loaded & FONT_16))
346 	    return EINVAL;
347 	font = scp->sc->font_16;
348 #else
349 	font = NULL;
350 #endif
351     } else {
352 	fontsize = 14;
353 #ifndef SC_NO_FONT_LOADING
354 	if (!(scp->sc->fonts_loaded & FONT_14))
355 	    return EINVAL;
356 	font = scp->sc->font_14;
357 #else
358 	font = NULL;
359 #endif
360     }
361     if (xsize <= 0)
362 	xsize = info.vi_width/8;
363     if (ysize <= 0)
364 	ysize = info.vi_height/fontsize;
365 
366     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
367 	return EINVAL;
368 
369     /* only 16 color, 4 plane modes are supported XXX */
370     if ((info.vi_depth != 4) || (info.vi_planes != 4))
371 	return ENODEV;
372 
373     /*
374      * set_pixel_mode() currently does not support video modes whose
375      * memory size is larger than 64K. Because such modes require
376      * bank switching to access the entire screen. XXX
377      */
378     if (info.vi_width*info.vi_height/8 > info.vi_window_size)
379 	return ENODEV;
380 
381     /* stop screen saver, etc */
382     s = spltty();
383     if ((error = sc_clean_up(scp))) {
384 	splx(s);
385 	return error;
386     }
387 
388     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
389 	splx(s);
390 	return ENODEV;
391     }
392 
393 #if 0
394     if (scp->tsw)
395 	(*scp->tsw->te_term)(scp, scp->ts);
396     scp->tsw = NULL;
397     scp->ts = NULL;
398 #endif
399 
400     /* set up scp */
401 #ifndef SC_NO_HISTORY
402     if (scp->history != NULL)
403 	sc_hist_save(scp);
404 #endif
405     prev_ysize = scp->ysize;
406     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
407     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
408     scp->xsize = xsize;
409     scp->ysize = ysize;
410     scp->xoff = (scp->xpixel/8 - xsize)/2;
411     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
412     scp->font = font;
413     scp->font_size = fontsize;
414 
415     /* allocate buffers */
416     sc_alloc_scr_buffer(scp, TRUE, TRUE);
417     sc_init_emulator(scp, NULL);
418 #ifndef SC_NO_CUTPASTE
419     sc_alloc_cut_buffer(scp, FALSE);
420 #endif
421 #ifndef SC_NO_HISTORY
422     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
423 #endif
424     splx(s);
425 
426     if (scp == scp->sc->cur_scp) {
427 	sc_set_border(scp, scp->border);
428 	sc_set_cursor_image(scp);
429     }
430 
431     scp->status &= ~UNKNOWN_MODE;
432 
433     if (tp == NULL)
434 	return 0;
435     if (tp->t_winsize.ws_col != scp->xsize
436 	|| tp->t_winsize.ws_row != scp->ysize) {
437 	tp->t_winsize.ws_col = scp->xsize;
438 	tp->t_winsize.ws_row = scp->ysize;
439 	if (tp->t_pgrp != NULL) {
440 	    PGRP_LOCK(tp->t_pgrp);
441 	    pgsignal(tp->t_pgrp, SIGWINCH, 1);
442 	    PGRP_UNLOCK(tp->t_pgrp);
443 	}
444     }
445 
446     return 0;
447 #endif /* SC_PIXEL_MODE */
448 }
449 
450 #define fb_ioctl(a, c, d)		\
451 	(((a) == NULL) ? ENODEV : 	\
452 			 (*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d)))
453 
454 int
455 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct thread *td)
456 {
457     scr_stat *scp;
458     video_adapter_t *adp;
459     video_info_t info;
460     video_adapter_info_t adp_info;
461     int error;
462     int s;
463 
464     scp = SC_STAT(tp->t_dev);
465     if (scp == NULL)		/* tp == SC_MOUSE */
466 	return ENOIOCTL;
467     adp = scp->sc->adp;
468     if (adp == NULL)		/* shouldn't happen??? */
469 	return ENODEV;
470 
471     switch (cmd) {
472 
473     case CONS_CURRENTADP:	/* get current adapter index */
474     case FBIO_ADAPTER:
475 	return fb_ioctl(adp, FBIO_ADAPTER, data);
476 
477     case CONS_CURRENT:  	/* get current adapter type */
478     case FBIO_ADPTYPE:
479 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
480 
481     case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
482 	if (((old_video_adapter_t *)data)->va_index >= 0) {
483 	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
484 	    if (adp == NULL)
485 		return ENODEV;
486 	}
487 	((old_video_adapter_t *)data)->va_index = adp->va_index;
488 	((old_video_adapter_t *)data)->va_type = adp->va_type;
489 	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
490 	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
491 	((old_video_adapter_t *)data)->va_window = adp->va_window;
492 	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
493 	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
494 	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
495 	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
496 	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
497 	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
498 	((old_video_adapter_t *)data)->va_initial_bios_mode
499 	    = adp->va_initial_bios_mode;
500 	return 0;
501 
502     case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
503 	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
504 	if (adp_info.va_index >= 0) {
505 	    adp = vid_get_adapter(adp_info.va_index);
506 	    if (adp == NULL)
507 		return ENODEV;
508 	}
509 	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
510 	if (error == 0)
511 	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
512 	return error;
513 
514     case CONS_ADPINFO:		/* adapter information */
515     case FBIO_ADPINFO:
516 	if (((video_adapter_info_t *)data)->va_index >= 0) {
517 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
518 	    if (adp == NULL)
519 		return ENODEV;
520 	}
521 	return fb_ioctl(adp, FBIO_ADPINFO, data);
522 
523     case CONS_GET:      	/* get current video mode */
524     case FBIO_GETMODE:
525 	*(int *)data = scp->mode;
526 	return 0;
527 
528 #ifndef SC_NO_MODE_CHANGE
529     case FBIO_SETMODE:		/* set video mode */
530 	if (!(adp->va_flags & V_ADP_MODECHANGE))
531  	    return ENODEV;
532 	info.vi_mode = *(int *)data;
533 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
534 	if (error)
535 	    return error;
536 	if (info.vi_flags & V_INFO_GRAPHICS)
537 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
538 	else
539 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0);
540 #endif /* SC_NO_MODE_CHANGE */
541 
542     case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
543 	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
544 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
545 	if (error == 0)
546 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
547 	return error;
548 
549     case CONS_MODEINFO:		/* get mode information */
550     case FBIO_MODEINFO:
551 	return fb_ioctl(adp, FBIO_MODEINFO, data);
552 
553     case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
554 	bzero(&info, sizeof(info));
555 	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
556 	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
557 	if (error == 0)
558 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
559 	return error;
560 
561     case CONS_FINDMODE:		/* find a matching video mode */
562     case FBIO_FINDMODE:
563 	return fb_ioctl(adp, FBIO_FINDMODE, data);
564 
565     case CONS_SETWINORG:	/* set frame buffer window origin */
566     case FBIO_SETWINORG:
567 	if (scp != scp->sc->cur_scp)
568 	    return ENODEV;	/* XXX */
569 	return fb_ioctl(adp, FBIO_SETWINORG, data);
570 
571     case FBIO_GETWINORG:	/* get frame buffer window origin */
572 	if (scp != scp->sc->cur_scp)
573 	    return ENODEV;	/* XXX */
574 	return fb_ioctl(adp, FBIO_GETWINORG, data);
575 
576     case FBIO_GETDISPSTART:
577     case FBIO_SETDISPSTART:
578     case FBIO_GETLINEWIDTH:
579     case FBIO_SETLINEWIDTH:
580 	if (scp != scp->sc->cur_scp)
581 	    return ENODEV;	/* XXX */
582 	return fb_ioctl(adp, cmd, data);
583 
584     case FBIO_GETPALETTE:
585     case FBIO_SETPALETTE:
586     case FBIOPUTCMAP:
587     case FBIOGETCMAP:
588     case FBIOGTYPE:
589     case FBIOGATTR:
590     case FBIOSVIDEO:
591     case FBIOGVIDEO:
592     case FBIOSCURSOR:
593     case FBIOGCURSOR:
594     case FBIOSCURPOS:
595     case FBIOGCURPOS:
596     case FBIOGCURMAX:
597 	if (scp != scp->sc->cur_scp)
598 	    return ENODEV;	/* XXX */
599 	return fb_ioctl(adp, cmd, data);
600 
601     case FBIO_BLANK:
602 	if (scp != scp->sc->cur_scp)
603 	    return ENODEV;	/* XXX */
604 	return fb_ioctl(adp, cmd, data);
605 
606 #ifndef SC_NO_MODE_CHANGE
607     /* generic text modes */
608     case SW_TEXT_80x25:	case SW_TEXT_80x30:
609     case SW_TEXT_80x43: case SW_TEXT_80x50:
610     case SW_TEXT_80x60:
611 	/* FALLTHROUGH */
612 
613     /* VGA TEXT MODES */
614     case SW_VGA_C40x25:
615     case SW_VGA_C80x25: case SW_VGA_M80x25:
616     case SW_VGA_C80x30: case SW_VGA_M80x30:
617     case SW_VGA_C80x50: case SW_VGA_M80x50:
618     case SW_VGA_C80x60: case SW_VGA_M80x60:
619     case SW_VGA_C90x25: case SW_VGA_M90x25:
620     case SW_VGA_C90x30: case SW_VGA_M90x30:
621     case SW_VGA_C90x43: case SW_VGA_M90x43:
622     case SW_VGA_C90x50: case SW_VGA_M90x50:
623     case SW_VGA_C90x60: case SW_VGA_M90x60:
624     case SW_B40x25:     case SW_C40x25:
625     case SW_B80x25:     case SW_C80x25:
626     case SW_ENH_B40x25: case SW_ENH_C40x25:
627     case SW_ENH_B80x25: case SW_ENH_C80x25:
628     case SW_ENH_B80x43: case SW_ENH_C80x43:
629     case SW_EGAMONO80x25:
630 
631 #ifdef PC98
632     /* PC98 TEXT MODES */
633     case SW_PC98_80x25:
634     case SW_PC98_80x30:
635 #endif
636 	if (!(adp->va_flags & V_ADP_MODECHANGE))
637  	    return ENODEV;
638 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
639 
640     /* GRAPHICS MODES */
641     case SW_BG320:     case SW_BG640:
642     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
643     case SW_CG640x350: case SW_ENH_CG640:
644     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
645     case SW_VGA_MODEX:
646 #ifdef PC98
647     /* PC98 GRAPHICS MODES */
648     case SW_PC98_EGC640x400:	case SW_PC98_PEGC640x400:
649     case SW_PC98_PEGC640x480:
650 #endif
651 	if (!(adp->va_flags & V_ADP_MODECHANGE))
652 	    return ENODEV;
653 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
654 #endif /* SC_NO_MODE_CHANGE */
655 
656     case KDSETMODE:     	/* set current mode of this (virtual) console */
657 	switch (*(int *)data) {
658 	case KD_TEXT:   	/* switch to TEXT (known) mode */
659 	    /*
660 	     * If scp->mode is of graphics modes, we don't know which
661 	     * text mode to switch back to...
662 	     */
663 	    if (scp->status & GRAPHICS_MODE)
664 		return EINVAL;
665 	    /* restore fonts & palette ! */
666 #if 0
667 #ifndef SC_NO_FONT_LOADING
668 	    if (ISFONTAVAIL(adp->va_flags)
669 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
670 		/*
671 		 * FONT KLUDGE
672 		 * Don't load fonts for now... XXX
673 		 */
674 		if (scp->sc->fonts_loaded & FONT_8)
675 		    sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
676 		if (scp->sc->fonts_loaded & FONT_14)
677 		    sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
678 		if (scp->sc->fonts_loaded & FONT_16)
679 		    sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
680 	    }
681 #endif /* SC_NO_FONT_LOADING */
682 #endif
683 
684 #ifndef SC_NO_PALETTE_LOADING
685 	    load_palette(adp, scp->sc->palette);
686 #endif
687 
688 #ifndef PC98
689 	    /* move hardware cursor out of the way */
690 	    (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
691 #endif
692 
693 	    /* FALLTHROUGH */
694 
695 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
696 	    /*
697 	     * If scp->mode is of graphics modes, we don't know which
698 	     * text/pixel mode to switch back to...
699 	     */
700 	    if (scp->status & GRAPHICS_MODE)
701 		return EINVAL;
702 	    s = spltty();
703 	    if ((error = sc_clean_up(scp))) {
704 		splx(s);
705 		return error;
706 	    }
707 #ifndef PC98
708 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
709 	    splx(s);
710 	    /* no restore fonts & palette */
711 	    if (scp == scp->sc->cur_scp)
712 		set_mode(scp);
713 	    sc_clear_screen(scp);
714 	    scp->status &= ~UNKNOWN_MODE;
715 #else /* PC98 */
716 	    scp->status &= ~UNKNOWN_MODE;
717 	    /* no restore fonts & palette */
718 	    if (scp == scp->sc->cur_scp)
719 		set_mode(scp);
720 	    sc_clear_screen(scp);
721 	    splx(s);
722 #endif /* PC98 */
723 	    return 0;
724 
725 #ifdef SC_PIXEL_MODE
726 	case KD_PIXEL:		/* pixel (raster) display */
727 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
728 		return EINVAL;
729 	    if (scp->status & GRAPHICS_MODE)
730 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
731 					 scp->font_size);
732 	    s = spltty();
733 	    if ((error = sc_clean_up(scp))) {
734 		splx(s);
735 		return error;
736 	    }
737 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
738 	    splx(s);
739 	    if (scp == scp->sc->cur_scp) {
740 		set_mode(scp);
741 #ifndef SC_NO_PALETTE_LOADING
742 		load_palette(adp, scp->sc->palette);
743 #endif
744 	    }
745 	    sc_clear_screen(scp);
746 	    scp->status &= ~UNKNOWN_MODE;
747 	    return 0;
748 #endif /* SC_PIXEL_MODE */
749 
750 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
751 	    s = spltty();
752 	    if ((error = sc_clean_up(scp))) {
753 		splx(s);
754 		return error;
755 	    }
756 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
757 	    splx(s);
758 #ifdef PC98
759 	    if (scp == scp->sc->cur_scp)
760 		set_mode(scp);
761 #endif
762 	    return 0;
763 
764 	default:
765 	    return EINVAL;
766 	}
767 	/* NOT REACHED */
768 
769 #ifdef SC_PIXEL_MODE
770     case KDRASTER:		/* set pixel (raster) display mode */
771 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
772 	    return ENODEV;
773 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
774 				 ((int *)data)[2]);
775 #endif /* SC_PIXEL_MODE */
776 
777     case KDGETMODE:     	/* get current mode of this (virtual) console */
778 	/*
779 	 * From the user program's point of view, KD_PIXEL is the same
780 	 * as KD_TEXT...
781 	 */
782 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
783 	return 0;
784 
785     case KDSBORDER:     	/* set border color of this (virtual) console */
786 	scp->border = *data;
787 	if (scp == scp->sc->cur_scp)
788 	    sc_set_border(scp, scp->border);
789 	return 0;
790     }
791 
792     return ENOIOCTL;
793 }
794 
795 static LIST_HEAD(, sc_renderer) sc_rndr_list =
796 	LIST_HEAD_INITIALIZER(sc_rndr_list);
797 
798 int
799 sc_render_add(sc_renderer_t *rndr)
800 {
801 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
802 	return 0;
803 }
804 
805 int
806 sc_render_remove(sc_renderer_t *rndr)
807 {
808 	/*
809 	LIST_REMOVE(rndr, link);
810 	*/
811 	return EBUSY;	/* XXX */
812 }
813 
814 sc_rndr_sw_t
815 *sc_render_match(scr_stat *scp, char *name, int mode)
816 {
817 	const sc_renderer_t **list;
818 	const sc_renderer_t *p;
819 
820 	if (!LIST_EMPTY(&sc_rndr_list)) {
821 		LIST_FOREACH(p, &sc_rndr_list, link) {
822 			if ((strcmp(p->name, name) == 0)
823 				&& (mode == p->mode)) {
824 				scp->status &=
825 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
826 				return p->rndrsw;
827 			}
828 		}
829 	} else {
830 		SET_FOREACH(list, scrndr_set) {
831 			p = *list;
832 			if ((strcmp(p->name, name) == 0)
833 				&& (mode == p->mode)) {
834 				scp->status &=
835 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
836 				return p->rndrsw;
837 			}
838 		}
839 	}
840 
841 	return NULL;
842 }
843