scvidctl.c revision 102412
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: head/sys/dev/syscons/scvidctl.c 102412 2002-08-25 13:23:09Z charnier $
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
48SET_DECLARE(scrndr_set, const sc_renderer_t);
49
50/* for compatibility with previous versions */
51/* 3.0-RELEASE used the following structure */
52typedef 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 */
80typedef 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 */
105typedef 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
130int
131sc_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
246int
247sc_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
314int
315sc_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
454int
455sc_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
795static LIST_HEAD(, sc_renderer) sc_rndr_list =
796	LIST_HEAD_INITIALIZER(sc_rndr_list);
797
798int
799sc_render_add(sc_renderer_t *rndr)
800{
801	LIST_INSERT_HEAD(&sc_rndr_list, rndr, link);
802	return 0;
803}
804
805int
806sc_render_remove(sc_renderer_t *rndr)
807{
808	/*
809	LIST_REMOVE(rndr, link);
810	*/
811	return EBUSY;	/* XXX */
812}
813
814sc_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