xref: /dragonfly/sys/dev/misc/syscons/scvidctl.c (revision 23265324)
1 /*-
2  * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to The DragonFly Project
6  * by Sascha Wildner <saw@online.de>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer as
13  *    the first lines of this file unmodified.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  * $FreeBSD: src/sys/dev/syscons/scvidctl.c,v 1.19.2.2 2000/05/05 09:16:08 nyan Exp $
30  * $DragonFly: src/sys/dev/misc/syscons/scvidctl.c,v 1.15 2006/12/29 00:10:35 swildner Exp $
31  */
32 
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/thread2.h>
42 
43 #include <machine/console.h>
44 
45 #include <dev/video/fb/fbreg.h>
46 #include "syscons.h"
47 
48 SET_DECLARE(scrndr_set, const sc_renderer_t);
49 
50 int
51 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize,
52 		 int fontsize)
53 {
54     video_info_t info;
55     u_char *font;
56     int prev_ysize;
57     int new_ysize;
58     int error;
59 
60     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
61 	return ENODEV;
62 
63     /* adjust argument values */
64     if (fontsize <= 0)
65 	fontsize = info.vi_cheight;
66     if (fontsize < 14) {
67 	fontsize = 8;
68 #ifndef SC_NO_FONT_LOADING
69 	if (!(scp->sc->fonts_loaded & FONT_8))
70 	    return EINVAL;
71 	font = scp->sc->font_8;
72 #else
73 	font = NULL;
74 #endif
75     } else if (fontsize >= 16) {
76 	fontsize = 16;
77 #ifndef SC_NO_FONT_LOADING
78 	if (!(scp->sc->fonts_loaded & FONT_16))
79 	    return EINVAL;
80 	font = scp->sc->font_16;
81 #else
82 	font = NULL;
83 #endif
84     } else {
85 	fontsize = 14;
86 #ifndef SC_NO_FONT_LOADING
87 	if (!(scp->sc->fonts_loaded & FONT_14))
88 	    return EINVAL;
89 	font = scp->sc->font_14;
90 #else
91 	font = NULL;
92 #endif
93     }
94     if ((xsize <= 0) || (xsize > info.vi_width))
95 	xsize = info.vi_width;
96     if ((ysize <= 0) || (ysize > info.vi_height))
97 	ysize = info.vi_height;
98 
99     /* stop screen saver, etc */
100     crit_enter();
101     if ((error = sc_clean_up(scp))) {
102 	crit_exit();
103 	return error;
104     }
105 
106     if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) {
107 	crit_exit();
108 	return ENODEV;
109     }
110 
111     /* set up scp */
112     new_ysize = 0;
113 #ifndef SC_NO_HISTORY
114     if (scp->history != NULL) {
115 	sc_hist_save(scp);
116 	new_ysize = sc_vtb_rows(scp->history);
117     }
118 #endif
119     prev_ysize = scp->ysize;
120     /*
121      * This is a kludge to fend off scrn_update() while we
122      * muck around with scp. XXX
123      */
124     scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
125     scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE);
126     scp->mode = mode;
127     scp->xsize = xsize;
128     scp->ysize = ysize;
129     scp->xoff = 0;
130     scp->yoff = 0;
131     scp->xpixel = scp->xsize*8;
132     scp->ypixel = scp->ysize*fontsize;
133     scp->font = font;
134     scp->font_size = fontsize;
135 
136     /* allocate buffers */
137     sc_alloc_scr_buffer(scp, TRUE, TRUE);
138     sc_init_emulator(scp, NULL);
139 #ifndef SC_NO_CUTPASTE
140     sc_alloc_cut_buffer(scp, FALSE);
141 #endif
142 #ifndef SC_NO_HISTORY
143     sc_alloc_history_buffer(scp, new_ysize, prev_ysize, FALSE);
144 #endif
145     crit_exit();
146 
147     if (scp == scp->sc->cur_scp)
148 	set_mode(scp);
149     scp->status &= ~UNKNOWN_MODE;
150 
151     if (tp == NULL)
152 	return 0;
153     DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n",
154 	tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize));
155     if (tp->t_winsize.ws_col != scp->xsize
156 	|| tp->t_winsize.ws_row != scp->ysize) {
157 	tp->t_winsize.ws_col = scp->xsize;
158 	tp->t_winsize.ws_row = scp->ysize;
159 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
160     }
161 
162     return 0;
163 }
164 
165 int
166 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode)
167 {
168 #ifdef SC_NO_MODE_CHANGE
169     return ENODEV;
170 #else
171     video_info_t info;
172     int error;
173 
174     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info))
175 	return ENODEV;
176 
177     /* stop screen saver, etc */
178     crit_enter();
179     if ((error = sc_clean_up(scp))) {
180 	crit_exit();
181 	return error;
182     }
183 
184     if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) {
185 	crit_exit();
186 	return ENODEV;
187     }
188 
189     /* set up scp */
190     scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN);
191     scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE);
192     scp->mode = mode;
193     /*
194      * Don't change xsize and ysize; preserve the previous vty
195      * and history buffers.
196      */
197     scp->xoff = 0;
198     scp->yoff = 0;
199     scp->xpixel = info.vi_width;
200     scp->ypixel = info.vi_height;
201     scp->font = NULL;
202     scp->font_size = 0;
203 #ifndef SC_NO_SYSMOUSE
204     /* move the mouse cursor at the center of the screen */
205     sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2);
206 #endif
207     sc_init_emulator(scp, NULL);
208     crit_exit();
209 
210     if (scp == scp->sc->cur_scp)
211 	set_mode(scp);
212     /* clear_graphics();*/
213     refresh_ega_palette(scp);
214     scp->status &= ~UNKNOWN_MODE;
215 
216     if (tp == NULL)
217 	return 0;
218     if (tp->t_winsize.ws_xpixel != scp->xpixel
219 	|| tp->t_winsize.ws_ypixel != scp->ypixel) {
220 	tp->t_winsize.ws_xpixel = scp->xpixel;
221 	tp->t_winsize.ws_ypixel = scp->ypixel;
222 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
223     }
224 
225     return 0;
226 #endif /* SC_NO_MODE_CHANGE */
227 }
228 
229 int
230 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize,
231 		  int fontsize)
232 {
233 #ifndef SC_PIXEL_MODE
234     return ENODEV;
235 #else
236     video_info_t info;
237     u_char *font;
238     int prev_ysize;
239     int new_ysize;
240     int error;
241 
242     if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info))
243 	return ENODEV;		/* this shouldn't happen */
244 
245     /* adjust argument values */
246     if (fontsize <= 0)
247 	fontsize = info.vi_cheight;
248     if (fontsize < 14) {
249 	fontsize = 8;
250 #ifndef SC_NO_FONT_LOADING
251 	if (!(scp->sc->fonts_loaded & FONT_8))
252 	    return EINVAL;
253 	font = scp->sc->font_8;
254 #else
255 	font = NULL;
256 #endif
257     } else if (fontsize >= 16) {
258 	fontsize = 16;
259 #ifndef SC_NO_FONT_LOADING
260 	if (!(scp->sc->fonts_loaded & FONT_16))
261 	    return EINVAL;
262 	font = scp->sc->font_16;
263 #else
264 	font = NULL;
265 #endif
266     } else {
267 	fontsize = 14;
268 #ifndef SC_NO_FONT_LOADING
269 	if (!(scp->sc->fonts_loaded & FONT_14))
270 	    return EINVAL;
271 	font = scp->sc->font_14;
272 #else
273 	font = NULL;
274 #endif
275     }
276     if (xsize <= 0)
277 	xsize = info.vi_width/8;
278     if (ysize <= 0)
279 	ysize = info.vi_height/fontsize;
280 
281     if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize))
282 	return EINVAL;
283 
284     /*
285      * We currently support the following graphic modes:
286      *
287      * - 4 bpp planar modes whose memory size does not exceed 64K
288      * - 15, 16, 24 and 32 bpp direct modes with linear frame buffer
289      */
290 
291     if (info.vi_mem_model == V_INFO_MM_PLANAR) {
292 	if (info.vi_planes != 4)
293 	    return ENODEV;
294 
295 	/*
296 	 * A memory size >64K requires bank switching to access the entire
297 	 * screen. XXX
298 	 */
299 
300 	if (info.vi_width * info.vi_height / 8 > info.vi_window_size)
301 	    return ENODEV;
302     } else if (info.vi_mem_model == V_INFO_MM_DIRECT) {
303 	if (!(info.vi_flags & V_INFO_LINEAR) &&
304 	    (info.vi_depth != 15) && (info.vi_depth != 16) &&
305 	    (info.vi_depth != 24) && (info.vi_depth != 32))
306 	    return ENODEV;
307     } else
308 	return ENODEV;
309 
310     /* stop screen saver, etc */
311     crit_enter();
312     if ((error = sc_clean_up(scp))) {
313 	crit_exit();
314 	return error;
315     }
316 
317     if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) {
318 	crit_exit();
319 	return ENODEV;
320     }
321 
322 #if 0
323     if (scp->tsw)
324 	(*scp->tsw->te_term)(scp, scp->ts);
325     scp->tsw = NULL;
326     scp->ts = NULL;
327 #endif
328 
329     /* set up scp */
330     new_ysize = 0;
331 #ifndef SC_NO_HISTORY
332     if (scp->history != NULL) {
333 	sc_hist_save(scp);
334 	new_ysize = sc_vtb_rows(scp->history);
335     }
336 #endif
337     prev_ysize = scp->ysize;
338     scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
339     scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE);
340     scp->xsize = xsize;
341     scp->ysize = ysize;
342     scp->xoff = (scp->xpixel/8 - xsize)/2;
343     scp->yoff = (scp->ypixel/fontsize - ysize)/2;
344     scp->font = font;
345     scp->font_size = fontsize;
346 
347     /* allocate buffers */
348     sc_alloc_scr_buffer(scp, TRUE, TRUE);
349     sc_init_emulator(scp, NULL);
350 #ifndef SC_NO_CUTPASTE
351     sc_alloc_cut_buffer(scp, FALSE);
352 #endif
353 #ifndef SC_NO_HISTORY
354     sc_alloc_history_buffer(scp, new_ysize, prev_ysize, FALSE);
355 #endif
356     crit_exit();
357 
358     if (scp == scp->sc->cur_scp) {
359 	sc_set_border(scp, scp->border);
360 	sc_set_cursor_image(scp);
361     }
362 
363     scp->status &= ~UNKNOWN_MODE;
364 
365     if (tp == NULL)
366 	return 0;
367     if (tp->t_winsize.ws_col != scp->xsize
368 	|| tp->t_winsize.ws_row != scp->ysize) {
369 	tp->t_winsize.ws_col = scp->xsize;
370 	tp->t_winsize.ws_row = scp->ysize;
371 	pgsignal(tp->t_pgrp, SIGWINCH, 1);
372     }
373 
374     return 0;
375 #endif /* SC_PIXEL_MODE */
376 }
377 
378 #define fb_ioctl(a, c, d)		\
379 	(((a) == NULL) ? ENODEV : 	\
380 			 (*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d)))
381 
382 int
383 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag)
384 {
385     scr_stat *scp;
386     video_adapter_t *adp;
387     video_info_t info;
388     int error;
389 
390     scp = SC_STAT(tp->t_dev);
391     if (scp == NULL)		/* tp == SC_MOUSE */
392 	return ENOIOCTL;
393     adp = scp->sc->adp;
394     if (adp == NULL)		/* shouldn't happen??? */
395 	return ENODEV;
396 
397     switch (cmd) {
398 
399     case CONS_CURRENTADP:	/* get current adapter index */
400     case FBIO_ADAPTER:
401 	return fb_ioctl(adp, FBIO_ADAPTER, data);
402 
403     case CONS_CURRENT:  	/* get current adapter type */
404     case FBIO_ADPTYPE:
405 	return fb_ioctl(adp, FBIO_ADPTYPE, data);
406 
407     case CONS_ADPINFO:		/* adapter information */
408     case FBIO_ADPINFO:
409 	if (((video_adapter_info_t *)data)->va_index >= 0) {
410 	    adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index);
411 	    if (adp == NULL)
412 		return ENODEV;
413 	}
414 	return fb_ioctl(adp, FBIO_ADPINFO, data);
415 
416     case CONS_GET:      	/* get current video mode */
417     case FBIO_GETMODE:
418 	*(int *)data = scp->mode;
419 	return 0;
420 
421 #ifndef SC_NO_MODE_CHANGE
422     case FBIO_SETMODE:		/* set video mode */
423 	if (!(adp->va_flags & V_ADP_MODECHANGE))
424  	    return ENODEV;
425 	info.vi_mode = *(int *)data;
426 	error = fb_ioctl(adp, FBIO_MODEINFO, &info);
427 	if (error)
428 	    return error;
429 	if (info.vi_flags & V_INFO_GRAPHICS)
430 	    return sc_set_graphics_mode(scp, tp, *(int *)data);
431 	else
432 	    return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0);
433 #endif /* SC_NO_MODE_CHANGE */
434 
435     case CONS_MODEINFO:		/* get mode information */
436     case FBIO_MODEINFO:
437 	return fb_ioctl(adp, FBIO_MODEINFO, data);
438 
439     case CONS_FINDMODE:		/* find a matching video mode */
440     case FBIO_FINDMODE:
441 	return fb_ioctl(adp, FBIO_FINDMODE, data);
442 
443     case CONS_SETWINORG:	/* set frame buffer window origin */
444     case FBIO_SETWINORG:
445 	if (scp != scp->sc->cur_scp)
446 	    return ENODEV;	/* XXX */
447 	return fb_ioctl(adp, FBIO_SETWINORG, data);
448 
449     case FBIO_GETWINORG:	/* get frame buffer window origin */
450 	if (scp != scp->sc->cur_scp)
451 	    return ENODEV;	/* XXX */
452 	return fb_ioctl(adp, FBIO_GETWINORG, data);
453 
454     case FBIO_GETDISPSTART:
455     case FBIO_SETDISPSTART:
456     case FBIO_GETLINEWIDTH:
457     case FBIO_SETLINEWIDTH:
458 	if (scp != scp->sc->cur_scp)
459 	    return ENODEV;	/* XXX */
460 	return fb_ioctl(adp, cmd, data);
461 
462     case FBIO_GETPALETTE:
463     case FBIO_SETPALETTE:
464     case FBIOPUTCMAP:
465     case FBIOGETCMAP:
466     case FBIOGTYPE:
467     case FBIOGATTR:
468     case FBIOSVIDEO:
469     case FBIOGVIDEO:
470     case FBIOSCURSOR:
471     case FBIOGCURSOR:
472     case FBIOSCURPOS:
473     case FBIOGCURPOS:
474     case FBIOGCURMAX:
475 	if (scp != scp->sc->cur_scp)
476 	    return ENODEV;	/* XXX */
477 	return fb_ioctl(adp, cmd, data);
478 
479 #ifndef SC_NO_MODE_CHANGE
480     /* VGA TEXT MODES */
481     case SW_VGA_C40x25:
482     case SW_VGA_C80x25: case SW_VGA_M80x25:
483     case SW_VGA_C80x30: case SW_VGA_M80x30:
484     case SW_VGA_C80x50: case SW_VGA_M80x50:
485     case SW_VGA_C80x60: case SW_VGA_M80x60:
486     case SW_VGA_C90x25: case SW_VGA_M90x25:
487     case SW_VGA_C90x30: case SW_VGA_M90x30:
488     case SW_VGA_C90x43: case SW_VGA_M90x43:
489     case SW_VGA_C90x50: case SW_VGA_M90x50:
490     case SW_VGA_C90x60: case SW_VGA_M90x60:
491     case SW_B40x25:     case SW_C40x25:
492     case SW_B80x25:     case SW_C80x25:
493     case SW_ENH_B40x25: case SW_ENH_C40x25:
494     case SW_ENH_B80x25: case SW_ENH_C80x25:
495     case SW_ENH_B80x43: case SW_ENH_C80x43:
496     case SW_EGAMONO80x25:
497 	if (!(adp->va_flags & V_ADP_MODECHANGE))
498  	    return ENODEV;
499 	return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0);
500 
501     /* GRAPHICS MODES */
502     case SW_BG320:     case SW_BG640:
503     case SW_CG320:     case SW_CG320_D:   case SW_CG640_E:
504     case SW_CG640x350: case SW_ENH_CG640:
505     case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320:
506     case SW_VGA_MODEX:
507 	if (!(adp->va_flags & V_ADP_MODECHANGE))
508 	    return ENODEV;
509 	return sc_set_graphics_mode(scp, tp, cmd & 0xff);
510 #endif /* SC_NO_MODE_CHANGE */
511 
512     case KDSETMODE:     	/* set current mode of this (virtual) console */
513 	switch (*(int *)data) {
514 	case KD_TEXT:   	/* switch to TEXT (known) mode */
515 	    /*
516 	     * If scp->mode is of graphics modes, we don't know which
517 	     * text mode to switch back to...
518 	     */
519 	    if (scp->status & GRAPHICS_MODE)
520 		return EINVAL;
521 	    /* restore fonts & palette ! */
522 #if 0
523 #ifndef SC_NO_FONT_LOADING
524 	    if (ISFONTAVAIL(adp->va_flags)
525 		&& !(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
526 		/*
527 		 * FONT KLUDGE
528 		 * Don't load fonts for now... XXX
529 		 */
530 		if (scp->sc->fonts_loaded & FONT_8)
531 		    sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256);
532 		if (scp->sc->fonts_loaded & FONT_14)
533 		    sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256);
534 		if (scp->sc->fonts_loaded & FONT_16)
535 		    sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256);
536 	    }
537 #endif /* SC_NO_FONT_LOADING */
538 #endif
539 
540 #ifndef SC_NO_PALETTE_LOADING
541 	    load_palette(adp, scp->sc->palette);
542 #endif
543 
544 	    /* move hardware cursor out of the way */
545 	    (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1);
546 	    /* FALL THROUGH */
547 
548 	case KD_TEXT1:  	/* switch to TEXT (known) mode */
549 	    /*
550 	     * If scp->mode is of graphics modes, we don't know which
551 	     * text/pixel mode to switch back to...
552 	     */
553 	    if (scp->status & GRAPHICS_MODE)
554 		return EINVAL;
555 	    crit_enter();
556 	    if ((error = sc_clean_up(scp))) {
557 		crit_exit();
558 		return error;
559 	    }
560 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
561 	    crit_exit();
562 	    /* no restore fonts & palette */
563 	    if (scp == scp->sc->cur_scp)
564 		set_mode(scp);
565 	    sc_clear_screen(scp);
566 	    scp->status &= ~UNKNOWN_MODE;
567 	    return 0;
568 
569 #ifdef SC_PIXEL_MODE
570 	case KD_PIXEL:		/* pixel (raster) display */
571 	    if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE)))
572 		return EINVAL;
573 	    if (scp->status & GRAPHICS_MODE)
574 		return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize,
575 					 scp->font_size);
576 	    crit_enter();
577 	    if ((error = sc_clean_up(scp))) {
578 		crit_exit();
579 		return error;
580 	    }
581 	    scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN);
582 	    crit_exit();
583 	    if (scp == scp->sc->cur_scp) {
584 		set_mode(scp);
585 #ifndef SC_NO_PALETTE_LOADING
586 		load_palette(adp, scp->sc->palette);
587 #endif
588 	    }
589 	    sc_clear_screen(scp);
590 	    scp->status &= ~UNKNOWN_MODE;
591 	    return 0;
592 #endif /* SC_PIXEL_MODE */
593 
594 	case KD_GRAPHICS:	/* switch to GRAPHICS (unknown) mode */
595 	    crit_enter();
596 	    if ((error = sc_clean_up(scp))) {
597 		crit_exit();
598 		return error;
599 	    }
600 	    scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN;
601 	    crit_exit();
602 	    return 0;
603 
604 	default:
605 	    return EINVAL;
606 	}
607 	/* NOT REACHED */
608 
609 #ifdef SC_PIXEL_MODE
610     case KDRASTER:		/* set pixel (raster) display mode */
611 	if (ISUNKNOWNSC(scp) || ISTEXTSC(scp))
612 	    return ENODEV;
613 	return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1],
614 				 ((int *)data)[2]);
615 #endif /* SC_PIXEL_MODE */
616 
617     case KDGETMODE:     	/* get current mode of this (virtual) console */
618 	/*
619 	 * From the user program's point of view, KD_PIXEL is the same
620 	 * as KD_TEXT...
621 	 */
622 	*data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT;
623 	return 0;
624 
625     case KDSBORDER:     	/* set border color of this (virtual) console */
626 	scp->border = *data;
627 	if (scp == scp->sc->cur_scp)
628 	    sc_set_border(scp, scp->border);
629 	return 0;
630     }
631 
632     return ENOIOCTL;
633 }
634 
635 static LIST_HEAD(, sc_renderer) sc_rndr_list =
636 	LIST_HEAD_INITIALIZER(sc_rndr_list);
637 
638 int
639 sc_render_add(sc_renderer_t *rndr)
640 {
641 	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
642 	return 0;
643 }
644 
645 int
646 sc_render_remove(sc_renderer_t *rndr)
647 {
648 	/*
649 	LIST_REMOVE(rndr, link);
650 	*/
651 	return EBUSY;	/* XXX */
652 }
653 
654 sc_rndr_sw_t *
655 sc_render_match(scr_stat *scp, char *name, int mode)
656 {
657 	const sc_renderer_t **list;
658 	const sc_renderer_t *p;
659 
660 	if (!LIST_EMPTY(&sc_rndr_list)) {
661 		LIST_FOREACH(p, &sc_rndr_list, link) {
662 			if ((strcmp(p->name, name) == 0)
663 				&& (mode == p->mode)) {
664 				scp->status &=
665 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
666 				return p->rndrsw;
667 			}
668 		}
669 	} else {
670 		SET_FOREACH(list, scrndr_set) {
671 			p = *list;
672 			if ((strcmp(p->name, name) == 0)
673 				&& (mode == p->mode)) {
674 				scp->status &=
675 				    ~(VR_CURSOR_ON | VR_CURSOR_BLINK);
676 				return p->rndrsw;
677 			}
678 		}
679 	}
680 
681 	return NULL;
682 }
683