xref: /freebsd/sys/dev/syscons/scvidctl.c (revision 41466b50c1d5bfd1cf6adaae547a579a75d7c04e)
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 
40 #include <dev/fb/fbreg.h>
41 #include <dev/syscons/syscons.h>
42 
43 SET_DECLARE(scrndr_set, const sc_renderer_t);
44 
45 /* for compatibility with previous versions */
46 /* 3.0-RELEASE used the following structure */
47 typedef struct old_video_adapter {
48     int			va_index;
49     int			va_type;
50     int			va_flags;
51 /* flag bits are the same as the -CURRENT
52 #define V_ADP_COLOR	(1<<0)
53 #define V_ADP_MODECHANGE (1<<1)
54 #define V_ADP_STATESAVE	(1<<2)
55 #define V_ADP_STATELOAD	(1<<3)
56 #define V_ADP_FONT	(1<<4)
57 #define V_ADP_PALETTE	(1<<5)
58 #define V_ADP_BORDER	(1<<6)
59 #define V_ADP_VESA	(1<<7)
60 */
61     int			va_crtc_addr;
62     u_int		va_window;	/* virtual address */
63     size_t		va_window_size;
64     size_t		va_window_gran;
65     u_int		va_buffer;	/* virtual address */
66     size_t		va_buffer_size;
67     int			va_initial_mode;
68     int			va_initial_bios_mode;
69     int			va_mode;
70 } old_video_adapter_t;
71 
72 #define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
73 
74 /* 3.1-RELEASE used the following structure */
75 typedef struct old_video_adapter_info {
76     int			va_index;
77     int			va_type;
78     char		va_name[16];
79     int			va_unit;
80     int			va_flags;
81     int			va_io_base;
82     int			va_io_size;
83     int			va_crtc_addr;
84     int			va_mem_base;
85     int			va_mem_size;
86     u_int		va_window;	/* virtual address */
87     size_t		va_window_size;
88     size_t		va_window_gran;
89     u_int		va_buffer;;
90     size_t		va_buffer_size;
91     int			va_initial_mode;
92     int			va_initial_bios_mode;
93     int			va_mode;
94     int			va_line_width;
95 } old_video_adapter_info_t;
96 
97 #define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
98 
99 /* 3.0-RELEASE and 3.1-RELEASE used the following structure */
100 typedef struct old_video_info {
101     int			vi_mode;
102     int			vi_flags;
103 /* flag bits are the same as the -CURRENT
104 #define V_INFO_COLOR	(1<<0)
105 #define V_INFO_GRAPHICS	(1<<1)
106 #define V_INFO_LINEAR	(1<<2)
107 #define V_INFO_VESA	(1<<3)
108 */
109     int			vi_width;
110     int			vi_height;
111     int			vi_cwidth;
112     int			vi_cheight;
113     int			vi_depth;
114     int			vi_planes;
115     u_int		vi_window;	/* physical address */
116     size_t		vi_window_size;
117     size_t		vi_window_gran;
118     u_int		vi_buffer;	/* physical address */
119     size_t		vi_buffer_size;
120 } old_video_info_t;
121 
122 #define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
123 #define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
124 
125 int
126 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
127 		 int fontsize)
128 {
129     video_info_t info;
130     u_char *font;
131     int prev_ysize;
132     int error;
133     int s;
134 
135     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
136 	return ENODEV;
137 
138     /* adjust argument values */
139     if (fontsize <= 0)
140 	fontsize = info.vi_cheight;
141     if (fontsize < 14) {
142 	fontsize = 8;
143 #ifndef SC_NO_FONT_LOADING
144 	if (!(scp->sc->fonts_loaded & FONT_8))
145 	    return EINVAL;
146 	font = scp->sc->font_8;
147 #else
148 	font = NULL;
149 #endif
150     } else if (fontsize >= 16) {
151 	fontsize = 16;
152 #ifndef SC_NO_FONT_LOADING
153 	if (!(scp->sc->fonts_loaded & FONT_16))
154 	    return EINVAL;
155 	font = scp->sc->font_16;
156 #else
157 	font = NULL;
158 #endif
159     } else {
160 	fontsize = 14;
161 #ifndef SC_NO_FONT_LOADING
162 	if (!(scp->sc->fonts_loaded & FONT_14))
163 	    return EINVAL;
164 	font = scp->sc->font_14;
165 #else
166 	font = NULL;
167 #endif
168     }
169     if ((xsize <= 0) || (xsize > info.vi_width))
170 	xsize = info.vi_width;
171     if ((ysize <= 0) || (ysize > info.vi_height))
172 	ysize = info.vi_height;
173 
174     /* stop screen saver, etc */
175     s = spltty();
176     if ((error = sc_clean_up(scp))) {
177 	splx(s);
178 	return error;
179     }
180 
181     if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
182 	splx(s);
183 	return ENODEV;
184     }
185 
186     /* set up scp */
187 #ifndef SC_NO_HISTORY
188     if (scp->history != NULL)
189 	sc_hist_save(scp);
190 #endif
191     prev_ysize = scp->ysize;
192     /*
193      * This is a kludge to fend off scrn_update() while we
194      * muck around with scp. XXX
195      */
196     scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
197     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
198     scp->mode = mode;
199     scp->xsize = xsize;
200     scp->ysize = ysize;
201     scp->xoff = 0;
202     scp->yoff = 0;
203     scp->xpixel = scp->xsize*8;
204     scp->ypixel = scp->ysize*fontsize;
205     scp->font = font;
206     scp->font_size = fontsize;
207 
208     /* allocate buffers */
209     sc_alloc_scr_buffer(scp, TRUE, TRUE);
210     sc_init_emulator(scp, NULL);
211 #ifndef SC_NO_CUTPASTE
212     sc_alloc_cut_buffer(scp, FALSE);
213 #endif
214 #ifndef SC_NO_HISTORY
215     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
216 #endif
217     splx(s);
218 
219     if (scp == scp->sc->cur_scp)
220 	set_mode(scp);
221     scp->status &= ~UNKNOWN_MODE;
222 
223     if (tp == NULL)
224 	return 0;
225     DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
226 	tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
227     if (tp->t_winsize.ws_col != scp->xsize
228 	|| tp->t_winsize.ws_row != scp->ysize) {
229 	tp->t_winsize.ws_col = scp->xsize;
230 	tp->t_winsize.ws_row = scp->ysize;
231 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
232     }
233 
234     return 0;
235 }
236 
237 int
238 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
239 {
240 #ifdef SC_NO_MODE_CHANGE
241     return ENODEV;
242 #else
243     video_info_t info;
244     int error;
245     int s;
246 
247     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
248 	return ENODEV;
249 
250     /* stop screen saver, etc */
251     s = spltty();
252     if ((error = sc_clean_up(scp))) {
253 	splx(s);
254 	return error;
255     }
256 
257     if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
258 	splx(s);
259 	return ENODEV;
260     }
261 
262     /* set up scp */
263     scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
264     scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
265     scp->mode = mode;
266     /*
267      * Don't change xsize and ysize; preserve the previous vty
268      * and history buffers.
269      */
270     scp->xoff = 0;
271     scp->yoff = 0;
272     scp->xpixel = info.vi_width;
273     scp->ypixel = info.vi_height;
274     scp->font = NULL;
275     scp->font_size = 0;
276 #ifndef SC_NO_SYSMOUSE
277     /* move the mouse cursor at the center of the screen */
278     sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
279 #endif
280     sc_init_emulator(scp, NULL);
281     splx(s);
282 
283     if (scp == scp->sc->cur_scp)
284 	set_mode(scp);
285     /* clear_graphics();*/
286     scp->status &= ~UNKNOWN_MODE;
287 
288     if (tp == NULL)
289 	return 0;
290     if (tp->t_winsize.ws_xpixel != scp->xpixel
291 	|| tp->t_winsize.ws_ypixel != scp->ypixel) {
292 	tp->t_winsize.ws_xpixel = scp->xpixel;
293 	tp->t_winsize.ws_ypixel = scp->ypixel;
294 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
295     }
296 
297     return 0;
298 #endif /* SC_NO_MODE_CHANGE */
299 }
300 
301 int
302 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
303 		  int fontsize)
304 {
305 #ifndef SC_PIXEL_MODE
306     return ENODEV;
307 #else
308     video_info_t info;
309     u_char *font;
310     int prev_ysize;
311     int error;
312     int s;
313 
314     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
315 	return ENODEV;		/* this shouldn't happen */
316 
317     /* adjust argument values */
318     if (fontsize <= 0)
319 	fontsize = info.vi_cheight;
320     if (fontsize < 14) {
321 	fontsize = 8;
322 #ifndef SC_NO_FONT_LOADING
323 	if (!(scp->sc->fonts_loaded & FONT_8))
324 	    return EINVAL;
325 	font = scp->sc->font_8;
326 #else
327 	font = NULL;
328 #endif
329     } else if (fontsize >= 16) {
330 	fontsize = 16;
331 #ifndef SC_NO_FONT_LOADING
332 	if (!(scp->sc->fonts_loaded & FONT_16))
333 	    return EINVAL;
334 	font = scp->sc->font_16;
335 #else
336 	font = NULL;
337 #endif
338     } else {
339 	fontsize = 14;
340 #ifndef SC_NO_FONT_LOADING
341 	if (!(scp->sc->fonts_loaded & FONT_14))
342 	    return EINVAL;
343 	font = scp->sc->font_14;
344 #else
345 	font = NULL;
346 #endif
347     }
348     if (xsize <= 0)
349 	xsize = info.vi_width/8;
350     if (ysize <= 0)
351 	ysize = info.vi_height/fontsize;
352 
353     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
354 	return EINVAL;
355 
356     /* only 16 color, 4 plane modes are supported XXX */
357     if ((info.vi_depth != 4) || (info.vi_planes != 4))
358 	return ENODEV;
359 
360     /*
361      * set_pixel_mode() currently does not support video modes whose
362      * memory size is larger than 64K. Because such modes require
363      * bank switching to access the entire screen. XXX
364      */
365     if (info.vi_width*info.vi_height/8 > info.vi_window_size)
366 	return ENODEV;
367 
368     /* stop screen saver, etc */
369     s = spltty();
370     if ((error = sc_clean_up(scp))) {
371 	splx(s);
372 	return error;
373     }
374 
375     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
376 	splx(s);
377 	return ENODEV;
378     }
379 
380 #if 0
381     if (scp->tsw)
382 	(*scp->tsw->te_term)(scp, scp->ts);
383     scp->tsw = NULL;
384     scp->ts = NULL;
385 #endif
386 
387     /* set up scp */
388 #ifndef SC_NO_HISTORY
389     if (scp->history != NULL)
390 	sc_hist_save(scp);
391 #endif
392     prev_ysize = scp->ysize;
393     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
394     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
395     scp->xsize = xsize;
396     scp->ysize = ysize;
397     scp->xoff = (scp->xpixel/8 - xsize)/2;
398     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
399     scp->font = font;
400     scp->font_size = fontsize;
401 
402     /* allocate buffers */
403     sc_alloc_scr_buffer(scp, TRUE, TRUE);
404     sc_init_emulator(scp, NULL);
405 #ifndef SC_NO_CUTPASTE
406     sc_alloc_cut_buffer(scp, FALSE);
407 #endif
408 #ifndef SC_NO_HISTORY
409     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
410 #endif
411     splx(s);
412 
413     if (scp == scp->sc->cur_scp) {
414 	sc_set_border(scp, scp->border);
415 	sc_set_cursor_image(scp);
416     }
417 
418     scp->status &= ~UNKNOWN_MODE;
419 
420     if (tp == NULL)
421 	return 0;
422     if (tp->t_winsize.ws_col != scp->xsize
423 	|| tp->t_winsize.ws_row != scp->ysize) {
424 	tp->t_winsize.ws_col = scp->xsize;
425 	tp->t_winsize.ws_row = scp->ysize;
426 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
427     }
428 
429     return 0;
430 #endif /* SC_PIXEL_MODE */
431 }
432 
433 #define fb_ioctl(a, c, d)		\
434 	(((a) == NULL) ? ENODEV : 	\
435 			 (*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d)))
436 
437 int
438 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct thread *td)
439 {
440     scr_stat *scp;
441     video_adapter_t *adp;
442     video_info_t info;
443     video_adapter_info_t adp_info;
444     int error;
445     int s;
446 
447     scp = SC_STAT(tp->t_dev);
448     if (scp == NULL)		/* tp == SC_MOUSE */
449 	return ENOIOCTL;
450     adp = scp->sc->adp;
451     if (adp == NULL)		/* shouldn't happen??? */
452 	return ENODEV;
453 
454     switch (cmd) {
455 
456     case CONS_CURRENTADP:	/* get current adapter index */
457     case FBIO_ADAPTER:
458 	return fb_ioctl(adp, FBIO_ADAPTER, data);
459 
460     case CONS_CURRENT:  	/* get current adapter type */
461     case FBIO_ADPTYPE:
462 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
463 
464     case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
465 	if (((old_video_adapter_t *)data)->va_index >= 0) {
466 	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
467 	    if (adp == NULL)
468 		return ENODEV;
469 	}
470 	((old_video_adapter_t *)data)->va_index = adp->va_index;
471 	((old_video_adapter_t *)data)->va_type = adp->va_type;
472 	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
473 	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
474 	((old_video_adapter_t *)data)->va_window = adp->va_window;
475 	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
476 	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
477 	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
478 	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
479 	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
480 	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
481 	((old_video_adapter_t *)data)->va_initial_bios_mode
482 	    = adp->va_initial_bios_mode;
483 	return 0;
484 
485     case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
486 	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
487 	if (adp_info.va_index >= 0) {
488 	    adp = vid_get_adapter(adp_info.va_index);
489 	    if (adp == NULL)
490 		return ENODEV;
491 	}
492 	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
493 	if (error == 0)
494 	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
495 	return error;
496 
497     case CONS_ADPINFO:		/* adapter information */
498     case FBIO_ADPINFO:
499 	if (((video_adapter_info_t *)data)->va_index >= 0) {
500 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
501 	    if (adp == NULL)
502 		return ENODEV;
503 	}
504 	return fb_ioctl(adp, FBIO_ADPINFO, data);
505 
506     case CONS_GET:      	/* get current video mode */
507     case FBIO_GETMODE:
508 	*(int *)data = scp->mode;
509 	return 0;
510 
511 #ifndef SC_NO_MODE_CHANGE
512     case FBIO_SETMODE:		/* set video mode */
513 	if (!(adp->va_flags & V_ADP_MODECHANGE))
514  	    return ENODEV;
515 	info.vi_mode = *(int *)data;
516 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
517 	if (error)
518 	    return error;
519 	if (info.vi_flags & V_INFO_GRAPHICS)
520 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
521 	else
522 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0);
523 #endif /* SC_NO_MODE_CHANGE */
524 
525     case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
526 	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
527 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
528 	if (error == 0)
529 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
530 	return error;
531 
532     case CONS_MODEINFO:		/* get mode information */
533     case FBIO_MODEINFO:
534 	return fb_ioctl(adp, FBIO_MODEINFO, data);
535 
536     case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
537 	bzero(&info, sizeof(info));
538 	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
539 	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
540 	if (error == 0)
541 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
542 	return error;
543 
544     case CONS_FINDMODE:		/* find a matching video mode */
545     case FBIO_FINDMODE:
546 	return fb_ioctl(adp, FBIO_FINDMODE, data);
547 
548     case CONS_SETWINORG:	/* set frame buffer window origin */
549     case FBIO_SETWINORG:
550 	if (scp != scp->sc->cur_scp)
551 	    return ENODEV;	/* XXX */
552 	return fb_ioctl(adp, FBIO_SETWINORG, data);
553 
554     case FBIO_GETWINORG:	/* get frame buffer window origin */
555 	if (scp != scp->sc->cur_scp)
556 	    return ENODEV;	/* XXX */
557 	return fb_ioctl(adp, FBIO_GETWINORG, data);
558 
559     case FBIO_GETDISPSTART:
560     case FBIO_SETDISPSTART:
561     case FBIO_GETLINEWIDTH:
562     case FBIO_SETLINEWIDTH:
563 	if (scp != scp->sc->cur_scp)
564 	    return ENODEV;	/* XXX */
565 	return fb_ioctl(adp, cmd, data);
566 
567     case FBIO_GETPALETTE:
568     case FBIO_SETPALETTE:
569     case FBIOPUTCMAP:
570     case FBIOGETCMAP:
571     case FBIOGTYPE:
572     case FBIOGATTR:
573     case FBIOSVIDEO:
574     case FBIOGVIDEO:
575     case FBIOSCURSOR:
576     case FBIOGCURSOR:
577     case FBIOSCURPOS:
578     case FBIOGCURPOS:
579     case FBIOGCURMAX:
580 	if (scp != scp->sc->cur_scp)
581 	    return ENODEV;	/* XXX */
582 	return fb_ioctl(adp, cmd, data);
583 
584     case FBIO_BLANK:
585 	if (scp != scp->sc->cur_scp)
586 	    return ENODEV;	/* XXX */
587 	return fb_ioctl(adp, cmd, data);
588 
589 #ifndef SC_NO_MODE_CHANGE
590     /* generic text modes */
591     case SW_TEXT_80x25:	case SW_TEXT_80x30:
592     case SW_TEXT_80x43: case SW_TEXT_80x50:
593     case SW_TEXT_80x60:
594 	/* FALL THROUGH */
595 
596     /* VGA TEXT MODES */
597     case SW_VGA_C40x25:
598     case SW_VGA_C80x25: case SW_VGA_M80x25:
599     case SW_VGA_C80x30: case SW_VGA_M80x30:
600     case SW_VGA_C80x50: case SW_VGA_M80x50:
601     case SW_VGA_C80x60: case SW_VGA_M80x60:
602     case SW_VGA_C90x25: case SW_VGA_M90x25:
603     case SW_VGA_C90x30: case SW_VGA_M90x30:
604     case SW_VGA_C90x43: case SW_VGA_M90x43:
605     case SW_VGA_C90x50: case SW_VGA_M90x50:
606     case SW_VGA_C90x60: case SW_VGA_M90x60:
607     case SW_B40x25:     case SW_C40x25:
608     case SW_B80x25:     case SW_C80x25:
609     case SW_ENH_B40x25: case SW_ENH_C40x25:
610     case SW_ENH_B80x25: case SW_ENH_C80x25:
611     case SW_ENH_B80x43: case SW_ENH_C80x43:
612     case SW_EGAMONO80x25:
613 
614 #ifdef PC98
615     /* PC98 TEXT MODES */
616     case SW_PC98_80x25:
617     case SW_PC98_80x30:
618 #endif
619 	if (!(adp->va_flags & V_ADP_MODECHANGE))
620  	    return ENODEV;
621 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
622 
623     /* GRAPHICS MODES */
624     case SW_BG320:     case SW_BG640:
625     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
626     case SW_CG640x350: case SW_ENH_CG640:
627     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
628     case SW_VGA_MODEX:
629 #ifdef PC98
630     /* PC98 GRAPHICS MODES */
631     case SW_PC98_EGC640x400:	case SW_PC98_PEGC640x400:
632     case SW_PC98_PEGC640x480:
633 #endif
634 	if (!(adp->va_flags & V_ADP_MODECHANGE))
635 	    return ENODEV;
636 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
637 #endif /* SC_NO_MODE_CHANGE */
638 
639     case KDSETMODE:     	/* set current mode of this (virtual) console */
640 	switch (*(int *)data) {
641 	case KD_TEXT:   	/* switch to TEXT (known) mode */
642 	    /*
643 	     * If scp->mode is of graphics modes, we don't know which
644 	     * text mode to switch back to...
645 	     */
646 	    if (scp->status & GRAPHICS_MODE)
647 		return EINVAL;
648 	    /* restore fonts & palette ! */
649 #if 0
650 #ifndef SC_NO_FONT_LOADING
651 	    if (ISFONTAVAIL(adp->va_flags)
652 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
653 		/*
654 		 * FONT KLUDGE
655 		 * Don't load fonts for now... XXX
656 		 */
657 		if (scp->sc->fonts_loaded & FONT_8)
658 		    sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
659 		if (scp->sc->fonts_loaded & FONT_14)
660 		    sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
661 		if (scp->sc->fonts_loaded & FONT_16)
662 		    sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
663 	    }
664 #endif /* SC_NO_FONT_LOADING */
665 #endif
666 
667 #ifndef SC_NO_PALETTE_LOADING
668 	    load_palette(adp, scp->sc->palette);
669 #endif
670 
671 #ifndef PC98
672 	    /* move hardware cursor out of the way */
673 	    (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
674 #endif
675 
676 	    /* FALL THROUGH */
677 
678 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
679 	    /*
680 	     * If scp->mode is of graphics modes, we don't know which
681 	     * text/pixel mode to switch back to...
682 	     */
683 	    if (scp->status & GRAPHICS_MODE)
684 		return EINVAL;
685 	    s = spltty();
686 	    if ((error = sc_clean_up(scp))) {
687 		splx(s);
688 		return error;
689 	    }
690 #ifndef PC98
691 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
692 	    splx(s);
693 	    /* no restore fonts & palette */
694 	    if (scp == scp->sc->cur_scp)
695 		set_mode(scp);
696 	    sc_clear_screen(scp);
697 	    scp->status &= ~UNKNOWN_MODE;
698 #else /* PC98 */
699 	    scp->status &= ~UNKNOWN_MODE;
700 	    /* no restore fonts & palette */
701 	    if (scp == scp->sc->cur_scp)
702 		set_mode(scp);
703 	    sc_clear_screen(scp);
704 	    splx(s);
705 #endif /* PC98 */
706 	    return 0;
707 
708 #ifdef SC_PIXEL_MODE
709 	case KD_PIXEL:		/* pixel (raster) display */
710 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
711 		return EINVAL;
712 	    if (scp->status & GRAPHICS_MODE)
713 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
714 					 scp->font_size);
715 	    s = spltty();
716 	    if ((error = sc_clean_up(scp))) {
717 		splx(s);
718 		return error;
719 	    }
720 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
721 	    splx(s);
722 	    if (scp == scp->sc->cur_scp) {
723 		set_mode(scp);
724 #ifndef SC_NO_PALETTE_LOADING
725 		load_palette(adp, scp->sc->palette);
726 #endif
727 	    }
728 	    sc_clear_screen(scp);
729 	    scp->status &= ~UNKNOWN_MODE;
730 	    return 0;
731 #endif /* SC_PIXEL_MODE */
732 
733 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
734 	    s = spltty();
735 	    if ((error = sc_clean_up(scp))) {
736 		splx(s);
737 		return error;
738 	    }
739 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
740 	    splx(s);
741 #ifdef PC98
742 	    if (scp == scp->sc->cur_scp)
743 		set_mode(scp);
744 #endif
745 	    return 0;
746 
747 	default:
748 	    return EINVAL;
749 	}
750 	/* NOT REACHED */
751 
752 #ifdef SC_PIXEL_MODE
753     case KDRASTER:		/* set pixel (raster) display mode */
754 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
755 	    return ENODEV;
756 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
757 				 ((int *)data)[2]);
758 #endif /* SC_PIXEL_MODE */
759 
760     case KDGETMODE:     	/* get current mode of this (virtual) console */
761 	/*
762 	 * From the user program's point of view, KD_PIXEL is the same
763 	 * as KD_TEXT...
764 	 */
765 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
766 	return 0;
767 
768     case KDSBORDER:     	/* set border color of this (virtual) console */
769 	scp->border = *data;
770 	if (scp == scp->sc->cur_scp)
771 	    sc_set_border(scp, scp->border);
772 	return 0;
773     }
774 
775     return ENOIOCTL;
776 }
777 
778 static LIST_HEAD(, sc_renderer) sc_rndr_list =
779 	LIST_HEAD_INITIALIZER(sc_rndr_list);
780 
781 int
782 sc_render_add(sc_renderer_t *rndr)
783 {
784 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
785 	return 0;
786 }
787 
788 int
789 sc_render_remove(sc_renderer_t *rndr)
790 {
791 	/*
792 	LIST_REMOVE(rndr, link);
793 	*/
794 	return EBUSY;	/* XXX */
795 }
796 
797 sc_rndr_sw_t
798 *sc_render_match(scr_stat *scp, char *name, int mode)
799 {
800 	const sc_renderer_t **list;
801 	const sc_renderer_t *p;
802 
803 	if (!LIST_EMPTY(&sc_rndr_list)) {
804 		LIST_FOREACH(p, &sc_rndr_list, link) {
805 			if ((strcmp(p->name, name) == 0)
806 				&& (mode == p->mode)) {
807 				scp->status &=
808 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
809 				return p->rndrsw;
810 			}
811 		}
812 	} else {
813 		SET_FOREACH(list, scrndr_set) {
814 			p = *list;
815 			if ((strcmp(p->name, name) == 0)
816 				&& (mode == p->mode)) {
817 				scp->status &=
818 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
819 				return p->rndrsw;
820 			}
821 		}
822 	}
823 
824 	return NULL;
825 }
826