xref: /dragonfly/sys/dev/misc/syscons/scvidctl.c (revision 28c7b939)
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: src/sys/dev/syscons/scvidctl.c,v 1.19.2.2 2000/05/05 09:16:08 nyan Exp $
27  * $DragonFly: src/sys/dev/misc/syscons/scvidctl.c,v 1.5 2003/11/10 06:12:06 dillon Exp $
28  */
29 
30 #include "opt_syscons.h"
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/conf.h>
35 #include <sys/signalvar.h>
36 #include <sys/tty.h>
37 #include <sys/kernel.h>
38 
39 #include <machine/console.h>
40 
41 #include <dev/video/fb/fbreg.h>
42 #include "syscons.h"
43 
44 SET_DECLARE(scrndr_set, const sc_renderer_t);
45 
46 /* for compatibility with previous versions */
47 /* 3.0-RELEASE used the following structure */
48 typedef struct old_video_adapter {
49     int			va_index;
50     int			va_type;
51     int			va_flags;
52 /* flag bits are the same as the -CURRENT
53 #define V_ADP_COLOR	(1<<0)
54 #define V_ADP_MODECHANGE (1<<1)
55 #define V_ADP_STATESAVE	(1<<2)
56 #define V_ADP_STATELOAD	(1<<3)
57 #define V_ADP_FONT	(1<<4)
58 #define V_ADP_PALETTE	(1<<5)
59 #define V_ADP_BORDER	(1<<6)
60 #define V_ADP_VESA	(1<<7)
61 */
62     int			va_crtc_addr;
63     u_int		va_window;	/* virtual address */
64     size_t		va_window_size;
65     size_t		va_window_gran;
66     u_int		va_buffer;	/* virtual address */
67     size_t		va_buffer_size;
68     int			va_initial_mode;
69     int			va_initial_bios_mode;
70     int			va_mode;
71 } old_video_adapter_t;
72 
73 #define OLD_CONS_ADPINFO _IOWR('c', 101, old_video_adapter_t)
74 
75 /* 3.1-RELEASE used the following structure */
76 typedef struct old_video_adapter_info {
77     int			va_index;
78     int			va_type;
79     char		va_name[16];
80     int			va_unit;
81     int			va_flags;
82     int			va_io_base;
83     int			va_io_size;
84     int			va_crtc_addr;
85     int			va_mem_base;
86     int			va_mem_size;
87     u_int		va_window;	/* virtual address */
88     size_t		va_window_size;
89     size_t		va_window_gran;
90     u_int		va_buffer;;
91     size_t		va_buffer_size;
92     int			va_initial_mode;
93     int			va_initial_bios_mode;
94     int			va_mode;
95     int			va_line_width;
96 } old_video_adapter_info_t;
97 
98 #define OLD_CONS_ADPINFO2 _IOWR('c', 101, old_video_adapter_info_t)
99 
100 /* 3.0-RELEASE and 3.1-RELEASE used the following structure */
101 typedef struct old_video_info {
102     int			vi_mode;
103     int			vi_flags;
104 /* flag bits are the same as the -CURRENT
105 #define V_INFO_COLOR	(1<<0)
106 #define V_INFO_GRAPHICS	(1<<1)
107 #define V_INFO_LINEAR	(1<<2)
108 #define V_INFO_VESA	(1<<3)
109 */
110     int			vi_width;
111     int			vi_height;
112     int			vi_cwidth;
113     int			vi_cheight;
114     int			vi_depth;
115     int			vi_planes;
116     u_int		vi_window;	/* physical address */
117     size_t		vi_window_size;
118     size_t		vi_window_gran;
119     u_int		vi_buffer;	/* physical address */
120     size_t		vi_buffer_size;
121 } old_video_info_t;
122 
123 #define OLD_CONS_MODEINFO _IOWR('c', 102, old_video_info_t)
124 #define OLD_CONS_FINDMODE _IOWR('c', 103, old_video_info_t)
125 
126 int
127 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
128 		 int fontsize)
129 {
130     video_info_t info;
131     u_char *font;
132     int prev_ysize;
133     int error;
134     int s;
135 
136     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
137 	return ENODEV;
138 
139     /* adjust argument values */
140     if (fontsize <= 0)
141 	fontsize = info.vi_cheight;
142     if (fontsize < 14) {
143 	fontsize = 8;
144 #ifndef SC_NO_FONT_LOADING
145 	if (!(scp->sc->fonts_loaded & FONT_8))
146 	    return EINVAL;
147 	font = scp->sc->font_8;
148 #else
149 	font = NULL;
150 #endif
151     } else if (fontsize >= 16) {
152 	fontsize = 16;
153 #ifndef SC_NO_FONT_LOADING
154 	if (!(scp->sc->fonts_loaded & FONT_16))
155 	    return EINVAL;
156 	font = scp->sc->font_16;
157 #else
158 	font = NULL;
159 #endif
160     } else {
161 	fontsize = 14;
162 #ifndef SC_NO_FONT_LOADING
163 	if (!(scp->sc->fonts_loaded & FONT_14))
164 	    return EINVAL;
165 	font = scp->sc->font_14;
166 #else
167 	font = NULL;
168 #endif
169     }
170     if ((xsize <= 0) || (xsize > info.vi_width))
171 	xsize = info.vi_width;
172     if ((ysize <= 0) || (ysize > info.vi_height))
173 	ysize = info.vi_height;
174 
175     /* stop screen saver, etc */
176     s = spltty();
177     if ((error = sc_clean_up(scp))) {
178 	splx(s);
179 	return error;
180     }
181 
182     if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
183 	splx(s);
184 	return ENODEV;
185     }
186 
187     /* set up scp */
188 #ifndef SC_NO_HISTORY
189     if (scp->history != NULL)
190 	sc_hist_save(scp);
191 #endif
192     prev_ysize = scp->ysize;
193     /*
194      * This is a kludge to fend off scrn_update() while we
195      * muck around with scp. XXX
196      */
197     scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
198     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
199     scp->mode = mode;
200     scp->xsize = xsize;
201     scp->ysize = ysize;
202     scp->xoff = 0;
203     scp->yoff = 0;
204     scp->xpixel = scp->xsize*8;
205     scp->ypixel = scp->ysize*fontsize;
206     scp->font = font;
207     scp->font_size = fontsize;
208 
209     /* allocate buffers */
210     sc_alloc_scr_buffer(scp, TRUE, TRUE);
211     sc_init_emulator(scp, NULL);
212 #ifndef SC_NO_CUTPASTE
213     sc_alloc_cut_buffer(scp, FALSE);
214 #endif
215 #ifndef SC_NO_HISTORY
216     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
217 #endif
218     splx(s);
219 
220     if (scp == scp->sc->cur_scp)
221 	set_mode(scp);
222     scp->status &= ~UNKNOWN_MODE;
223 
224     if (tp == NULL)
225 	return 0;
226     DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
227 	tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
228     if (tp->t_winsize.ws_col != scp->xsize
229 	|| tp->t_winsize.ws_row != scp->ysize) {
230 	tp->t_winsize.ws_col = scp->xsize;
231 	tp->t_winsize.ws_row = scp->ysize;
232 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
233     }
234 
235     return 0;
236 }
237 
238 int
239 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
240 {
241 #ifdef SC_NO_MODE_CHANGE
242     return ENODEV;
243 #else
244     video_info_t info;
245     int error;
246     int s;
247 
248     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
249 	return ENODEV;
250 
251     /* stop screen saver, etc */
252     s = spltty();
253     if ((error = sc_clean_up(scp))) {
254 	splx(s);
255 	return error;
256     }
257 
258     if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
259 	splx(s);
260 	return ENODEV;
261     }
262 
263     /* set up scp */
264     scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
265     scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
266     scp->mode = mode;
267     /*
268      * Don't change xsize and ysize; preserve the previous vty
269      * and history buffers.
270      */
271     scp->xoff = 0;
272     scp->yoff = 0;
273     scp->xpixel = info.vi_width;
274     scp->ypixel = info.vi_height;
275     scp->font = NULL;
276     scp->font_size = 0;
277 #ifndef SC_NO_SYSMOUSE
278     /* move the mouse cursor at the center of the screen */
279     sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
280 #endif
281     sc_init_emulator(scp, NULL);
282     splx(s);
283 
284     if (scp == scp->sc->cur_scp)
285 	set_mode(scp);
286     /* clear_graphics();*/
287     scp->status &= ~UNKNOWN_MODE;
288 
289     if (tp == NULL)
290 	return 0;
291     if (tp->t_winsize.ws_xpixel != scp->xpixel
292 	|| tp->t_winsize.ws_ypixel != scp->ypixel) {
293 	tp->t_winsize.ws_xpixel = scp->xpixel;
294 	tp->t_winsize.ws_ypixel = scp->ypixel;
295 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
296     }
297 
298     return 0;
299 #endif /* SC_NO_MODE_CHANGE */
300 }
301 
302 int
303 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
304 		  int fontsize)
305 {
306 #ifndef SC_PIXEL_MODE
307     return ENODEV;
308 #else
309     video_info_t info;
310     u_char *font;
311     int prev_ysize;
312     int error;
313     int s;
314 
315     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
316 	return ENODEV;		/* this shouldn't happen */
317 
318     /* adjust argument values */
319     if (fontsize <= 0)
320 	fontsize = info.vi_cheight;
321     if (fontsize < 14) {
322 	fontsize = 8;
323 #ifndef SC_NO_FONT_LOADING
324 	if (!(scp->sc->fonts_loaded & FONT_8))
325 	    return EINVAL;
326 	font = scp->sc->font_8;
327 #else
328 	font = NULL;
329 #endif
330     } else if (fontsize >= 16) {
331 	fontsize = 16;
332 #ifndef SC_NO_FONT_LOADING
333 	if (!(scp->sc->fonts_loaded & FONT_16))
334 	    return EINVAL;
335 	font = scp->sc->font_16;
336 #else
337 	font = NULL;
338 #endif
339     } else {
340 	fontsize = 14;
341 #ifndef SC_NO_FONT_LOADING
342 	if (!(scp->sc->fonts_loaded & FONT_14))
343 	    return EINVAL;
344 	font = scp->sc->font_14;
345 #else
346 	font = NULL;
347 #endif
348     }
349     if (xsize <= 0)
350 	xsize = info.vi_width/8;
351     if (ysize <= 0)
352 	ysize = info.vi_height/fontsize;
353 
354     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
355 	return EINVAL;
356 
357     /* only 16 color, 4 plane modes are supported XXX */
358     if ((info.vi_depth != 4) || (info.vi_planes != 4))
359 	return ENODEV;
360 
361     /*
362      * set_pixel_mode() currently does not support video modes whose
363      * memory size is larger than 64K. Because such modes require
364      * bank switching to access the entire screen. XXX
365      */
366     if (info.vi_width*info.vi_height/8 > info.vi_window_size)
367 	return ENODEV;
368 
369     /* stop screen saver, etc */
370     s = spltty();
371     if ((error = sc_clean_up(scp))) {
372 	splx(s);
373 	return error;
374     }
375 
376     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
377 	splx(s);
378 	return ENODEV;
379     }
380 
381 #if 0
382     if (scp->tsw)
383 	(*scp->tsw->te_term)(scp, scp->ts);
384     scp->tsw = NULL;
385     scp->ts = NULL;
386 #endif
387 
388     /* set up scp */
389 #ifndef SC_NO_HISTORY
390     if (scp->history != NULL)
391 	sc_hist_save(scp);
392 #endif
393     prev_ysize = scp->ysize;
394     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
395     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
396     scp->xsize = xsize;
397     scp->ysize = ysize;
398     scp->xoff = (scp->xpixel/8 - xsize)/2;
399     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
400     scp->font = font;
401     scp->font_size = fontsize;
402 
403     /* allocate buffers */
404     sc_alloc_scr_buffer(scp, TRUE, TRUE);
405     sc_init_emulator(scp, NULL);
406 #ifndef SC_NO_CUTPASTE
407     sc_alloc_cut_buffer(scp, FALSE);
408 #endif
409 #ifndef SC_NO_HISTORY
410     sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE);
411 #endif
412     splx(s);
413 
414     if (scp == scp->sc->cur_scp) {
415 	sc_set_border(scp, scp->border);
416 	sc_set_cursor_image(scp);
417     }
418 
419     scp->status &= ~UNKNOWN_MODE;
420 
421     if (tp == NULL)
422 	return 0;
423     if (tp->t_winsize.ws_col != scp->xsize
424 	|| tp->t_winsize.ws_row != scp->ysize) {
425 	tp->t_winsize.ws_col = scp->xsize;
426 	tp->t_winsize.ws_row = scp->ysize;
427 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
428     }
429 
430     return 0;
431 #endif /* SC_PIXEL_MODE */
432 }
433 
434 #define fb_ioctl(a, c, d)		\
435 	(((a) == NULL) ? ENODEV : 	\
436 			 (*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d)))
437 
438 int
439 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct thread *td)
440 {
441     scr_stat *scp;
442     video_adapter_t *adp;
443     video_info_t info;
444     video_adapter_info_t adp_info;
445     int error;
446     int s;
447 
448     scp = SC_STAT(tp->t_dev);
449     if (scp == NULL)		/* tp == SC_MOUSE */
450 	return ENOIOCTL;
451     adp = scp->sc->adp;
452     if (adp == NULL)		/* shouldn't happen??? */
453 	return ENODEV;
454 
455     switch (cmd) {
456 
457     case CONS_CURRENTADP:	/* get current adapter index */
458     case FBIO_ADAPTER:
459 	return fb_ioctl(adp, FBIO_ADAPTER, data);
460 
461     case CONS_CURRENT:  	/* get current adapter type */
462     case FBIO_ADPTYPE:
463 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
464 
465     case OLD_CONS_ADPINFO:	/* adapter information (old interface) */
466 	if (((old_video_adapter_t *)data)->va_index >= 0) {
467 	    adp = vid_get_adapter(((old_video_adapter_t *)data)->va_index);
468 	    if (adp == NULL)
469 		return ENODEV;
470 	}
471 	((old_video_adapter_t *)data)->va_index = adp->va_index;
472 	((old_video_adapter_t *)data)->va_type = adp->va_type;
473 	((old_video_adapter_t *)data)->va_flags = adp->va_flags;
474 	((old_video_adapter_t *)data)->va_crtc_addr = adp->va_crtc_addr;
475 	((old_video_adapter_t *)data)->va_window = adp->va_window;
476 	((old_video_adapter_t *)data)->va_window_size = adp->va_window_size;
477 	((old_video_adapter_t *)data)->va_window_gran = adp->va_window_gran;
478 	((old_video_adapter_t *)data)->va_buffer = adp->va_buffer;
479 	((old_video_adapter_t *)data)->va_buffer_size = adp->va_buffer_size;
480 	((old_video_adapter_t *)data)->va_mode = adp->va_mode;
481 	((old_video_adapter_t *)data)->va_initial_mode = adp->va_initial_mode;
482 	((old_video_adapter_t *)data)->va_initial_bios_mode
483 	    = adp->va_initial_bios_mode;
484 	return 0;
485 
486     case OLD_CONS_ADPINFO2:	/* adapter information (yet another old I/F) */
487 	adp_info.va_index = ((old_video_adapter_info_t *)data)->va_index;
488 	if (adp_info.va_index >= 0) {
489 	    adp = vid_get_adapter(adp_info.va_index);
490 	    if (adp == NULL)
491 		return ENODEV;
492 	}
493 	error = fb_ioctl(adp, FBIO_ADPINFO, &adp_info);
494 	if (error == 0)
495 	    bcopy(&adp_info, data, sizeof(old_video_adapter_info_t));
496 	return error;
497 
498     case CONS_ADPINFO:		/* adapter information */
499     case FBIO_ADPINFO:
500 	if (((video_adapter_info_t *)data)->va_index >= 0) {
501 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
502 	    if (adp == NULL)
503 		return ENODEV;
504 	}
505 	return fb_ioctl(adp, FBIO_ADPINFO, data);
506 
507     case CONS_GET:      	/* get current video mode */
508     case FBIO_GETMODE:
509 	*(int *)data = scp->mode;
510 	return 0;
511 
512 #ifndef SC_NO_MODE_CHANGE
513     case FBIO_SETMODE:		/* set video mode */
514 	if (!(adp->va_flags & V_ADP_MODECHANGE))
515  	    return ENODEV;
516 	info.vi_mode = *(int *)data;
517 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
518 	if (error)
519 	    return error;
520 	if (info.vi_flags & V_INFO_GRAPHICS)
521 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
522 	else
523 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0);
524 #endif /* SC_NO_MODE_CHANGE */
525 
526     case OLD_CONS_MODEINFO:	/* get mode information (old infterface) */
527 	info.vi_mode = ((old_video_info_t *)data)->vi_mode;
528 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
529 	if (error == 0)
530 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
531 	return error;
532 
533     case CONS_MODEINFO:		/* get mode information */
534     case FBIO_MODEINFO:
535 	return fb_ioctl(adp, FBIO_MODEINFO, data);
536 
537     case OLD_CONS_FINDMODE:	/* find a matching video mode (old interface) */
538 	bzero(&info, sizeof(info));
539 	bcopy((old_video_info_t *)data, &info, sizeof(old_video_info_t));
540 	error = fb_ioctl(adp, FBIO_FINDMODE, &info);
541 	if (error == 0)
542 	    bcopy(&info, (old_video_info_t *)data, sizeof(old_video_info_t));
543 	return error;
544 
545     case CONS_FINDMODE:		/* find a matching video mode */
546     case FBIO_FINDMODE:
547 	return fb_ioctl(adp, FBIO_FINDMODE, data);
548 
549     case CONS_SETWINORG:	/* set frame buffer window origin */
550     case FBIO_SETWINORG:
551 	if (scp != scp->sc->cur_scp)
552 	    return ENODEV;	/* XXX */
553 	return fb_ioctl(adp, FBIO_SETWINORG, data);
554 
555     case FBIO_GETWINORG:	/* get frame buffer window origin */
556 	if (scp != scp->sc->cur_scp)
557 	    return ENODEV;	/* XXX */
558 	return fb_ioctl(adp, FBIO_GETWINORG, data);
559 
560     case FBIO_GETDISPSTART:
561     case FBIO_SETDISPSTART:
562     case FBIO_GETLINEWIDTH:
563     case FBIO_SETLINEWIDTH:
564 	if (scp != scp->sc->cur_scp)
565 	    return ENODEV;	/* XXX */
566 	return fb_ioctl(adp, cmd, data);
567 
568     case FBIO_GETPALETTE:
569     case FBIO_SETPALETTE:
570     case FBIOPUTCMAP:
571     case FBIOGETCMAP:
572     case FBIOGTYPE:
573     case FBIOGATTR:
574     case FBIOSVIDEO:
575     case FBIOGVIDEO:
576     case FBIOSCURSOR:
577     case FBIOGCURSOR:
578     case FBIOSCURPOS:
579     case FBIOGCURPOS:
580     case FBIOGCURMAX:
581 	if (scp != scp->sc->cur_scp)
582 	    return ENODEV;	/* XXX */
583 	return fb_ioctl(adp, cmd, data);
584 
585 #ifndef SC_NO_MODE_CHANGE
586     /* generic text modes */
587     case SW_TEXT_80x25:	case SW_TEXT_80x30:
588     case SW_TEXT_80x43: case SW_TEXT_80x50:
589     case SW_TEXT_80x60:
590 	/* FALL THROUGH */
591 
592     /* VGA TEXT MODES */
593     case SW_VGA_C40x25:
594     case SW_VGA_C80x25: case SW_VGA_M80x25:
595     case SW_VGA_C80x30: case SW_VGA_M80x30:
596     case SW_VGA_C80x50: case SW_VGA_M80x50:
597     case SW_VGA_C80x60: case SW_VGA_M80x60:
598     case SW_VGA_C90x25: case SW_VGA_M90x25:
599     case SW_VGA_C90x30: case SW_VGA_M90x30:
600     case SW_VGA_C90x43: case SW_VGA_M90x43:
601     case SW_VGA_C90x50: case SW_VGA_M90x50:
602     case SW_VGA_C90x60: case SW_VGA_M90x60:
603     case SW_B40x25:     case SW_C40x25:
604     case SW_B80x25:     case SW_C80x25:
605     case SW_ENH_B40x25: case SW_ENH_C40x25:
606     case SW_ENH_B80x25: case SW_ENH_C80x25:
607     case SW_ENH_B80x43: case SW_ENH_C80x43:
608     case SW_EGAMONO80x25:
609 
610 #ifdef PC98
611     /* PC98 TEXT MODES */
612     case SW_PC98_80x25:
613     case SW_PC98_80x30:
614 #endif
615 	if (!(adp->va_flags & V_ADP_MODECHANGE))
616  	    return ENODEV;
617 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
618 
619     /* GRAPHICS MODES */
620     case SW_BG320:     case SW_BG640:
621     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
622     case SW_CG640x350: case SW_ENH_CG640:
623     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
624     case SW_VGA_MODEX:
625 #ifdef PC98
626     /* PC98 GRAPHICS MODES */
627     case SW_PC98_EGC640x400:	case SW_PC98_PEGC640x400:
628     case SW_PC98_PEGC640x480:
629 #endif
630 	if (!(adp->va_flags & V_ADP_MODECHANGE))
631 	    return ENODEV;
632 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
633 #endif /* SC_NO_MODE_CHANGE */
634 
635     case KDSETMODE:     	/* set current mode of this (virtual) console */
636 	switch (*(int *)data) {
637 	case KD_TEXT:   	/* switch to TEXT (known) mode */
638 	    /*
639 	     * If scp->mode is of graphics modes, we don't know which
640 	     * text mode to switch back to...
641 	     */
642 	    if (scp->status & GRAPHICS_MODE)
643 		return EINVAL;
644 	    /* restore fonts & palette ! */
645 #if 0
646 #ifndef SC_NO_FONT_LOADING
647 	    if (ISFONTAVAIL(adp->va_flags)
648 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
649 		/*
650 		 * FONT KLUDGE
651 		 * Don't load fonts for now... XXX
652 		 */
653 		if (scp->sc->fonts_loaded & FONT_8)
654 		    sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
655 		if (scp->sc->fonts_loaded & FONT_14)
656 		    sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
657 		if (scp->sc->fonts_loaded & FONT_16)
658 		    sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
659 	    }
660 #endif /* SC_NO_FONT_LOADING */
661 #endif
662 
663 #ifndef SC_NO_PALETTE_LOADING
664 	    load_palette(adp, scp->sc->palette);
665 #endif
666 
667 #ifndef PC98
668 	    /* move hardware cursor out of the way */
669 	    (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
670 #endif
671 
672 	    /* FALL THROUGH */
673 
674 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
675 	    /*
676 	     * If scp->mode is of graphics modes, we don't know which
677 	     * text/pixel mode to switch back to...
678 	     */
679 	    if (scp->status & GRAPHICS_MODE)
680 		return EINVAL;
681 	    s = spltty();
682 	    if ((error = sc_clean_up(scp))) {
683 		splx(s);
684 		return error;
685 	    }
686 #ifndef PC98
687 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
688 	    splx(s);
689 	    /* no restore fonts & palette */
690 	    if (scp == scp->sc->cur_scp)
691 		set_mode(scp);
692 	    sc_clear_screen(scp);
693 	    scp->status &= ~UNKNOWN_MODE;
694 #else /* PC98 */
695 	    scp->status &= ~UNKNOWN_MODE;
696 	    /* no restore fonts & palette */
697 	    if (scp == scp->sc->cur_scp)
698 		set_mode(scp);
699 	    sc_clear_screen(scp);
700 	    splx(s);
701 #endif /* PC98 */
702 	    return 0;
703 
704 #ifdef SC_PIXEL_MODE
705 	case KD_PIXEL:		/* pixel (raster) display */
706 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
707 		return EINVAL;
708 	    if (scp->status & GRAPHICS_MODE)
709 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
710 					 scp->font_size);
711 	    s = spltty();
712 	    if ((error = sc_clean_up(scp))) {
713 		splx(s);
714 		return error;
715 	    }
716 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
717 	    splx(s);
718 	    if (scp == scp->sc->cur_scp) {
719 		set_mode(scp);
720 #ifndef SC_NO_PALETTE_LOADING
721 		load_palette(adp, scp->sc->palette);
722 #endif
723 	    }
724 	    sc_clear_screen(scp);
725 	    scp->status &= ~UNKNOWN_MODE;
726 	    return 0;
727 #endif /* SC_PIXEL_MODE */
728 
729 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
730 	    s = spltty();
731 	    if ((error = sc_clean_up(scp))) {
732 		splx(s);
733 		return error;
734 	    }
735 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
736 	    splx(s);
737 #ifdef PC98
738 	    if (scp == scp->sc->cur_scp)
739 		set_mode(scp);
740 #endif
741 	    return 0;
742 
743 	default:
744 	    return EINVAL;
745 	}
746 	/* NOT REACHED */
747 
748 #ifdef SC_PIXEL_MODE
749     case KDRASTER:		/* set pixel (raster) display mode */
750 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
751 	    return ENODEV;
752 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
753 				 ((int *)data)[2]);
754 #endif /* SC_PIXEL_MODE */
755 
756     case KDGETMODE:     	/* get current mode of this (virtual) console */
757 	/*
758 	 * From the user program's point of view, KD_PIXEL is the same
759 	 * as KD_TEXT...
760 	 */
761 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
762 	return 0;
763 
764     case KDSBORDER:     	/* set border color of this (virtual) console */
765 	scp->border = *data;
766 	if (scp == scp->sc->cur_scp)
767 	    sc_set_border(scp, scp->border);
768 	return 0;
769     }
770 
771     return ENOIOCTL;
772 }
773 
774 static LIST_HEAD(, sc_renderer) sc_rndr_list =
775 	LIST_HEAD_INITIALIZER(sc_rndr_list);
776 
777 int
778 sc_render_add(sc_renderer_t *rndr)
779 {
780 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
781 	return 0;
782 }
783 
784 int
785 sc_render_remove(sc_renderer_t *rndr)
786 {
787 	/*
788 	LIST_REMOVE(rndr, link);
789 	*/
790 	return EBUSY;	/* XXX */
791 }
792 
793 sc_rndr_sw_t
794 *sc_render_match(scr_stat *scp, char *name, int mode)
795 {
796 	const sc_renderer_t **list;
797 	const sc_renderer_t *p;
798 
799 	if (!LIST_EMPTY(&sc_rndr_list)) {
800 		LIST_FOREACH(p, &sc_rndr_list, link) {
801 			if ((strcmp(p->name, name) == 0)
802 				&& (mode == p->mode)) {
803 				scp->status &=
804 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
805 				return p->rndrsw;
806 			}
807 		}
808 	} else {
809 		SET_FOREACH(list, scrndr_set) {
810 			p = *list;
811 			if ((strcmp(p->name, name) == 0)
812 				&& (mode == p->mode)) {
813 				scp->status &=
814 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
815 				return p->rndrsw;
816 			}
817 		}
818 	}
819 
820 	return NULL;
821 }
822