FreeBSD/Linux Kernel Cross Reference
sys/dev/fb/vesa.c
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
5 * Copyright (c) 2009-2013 Jung-uk Kim <jkim@FreeBSD.org>
6 * All rights reserved.
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 AUTHORS ``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 AUTHORS 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
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include "opt_vga.h"
34 #include "opt_vesa.h"
35
36 #ifndef VGA_NO_MODE_CHANGE
37
38 #include <sys/param.h>
39 #include <sys/bus.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/module.h>
44 #include <sys/malloc.h>
45 #include <sys/mutex.h>
46 #include <sys/fbio.h>
47 #include <sys/sysctl.h>
48
49 #include <vm/vm.h>
50 #include <vm/vm_extern.h>
51 #include <vm/vm_kern.h>
52 #include <vm/vm_param.h>
53 #include <vm/pmap.h>
54
55 #include <machine/pc/bios.h>
56 #include <dev/fb/vesa.h>
57
58 #include <dev/fb/fbreg.h>
59 #include <dev/fb/vgareg.h>
60
61 #include <dev/pci/pcivar.h>
62
63 #include <isa/isareg.h>
64
65 #include <compat/x86bios/x86bios.h>
66
67 #define VESA_BIOS_OFFSET 0xc0000
68 #define VESA_PALETTE_SIZE (256 * 4)
69 #define VESA_VIA_CLE266 "VIA CLE266\r\n"
70
71 #ifndef VESA_DEBUG
72 #define VESA_DEBUG 0
73 #endif
74
75 /* VESA video adapter state buffer stub */
76 struct adp_state {
77 int sig;
78 #define V_STATE_SIG 0x61736576
79 u_char regs[1];
80 };
81 typedef struct adp_state adp_state_t;
82
83 static struct mtx vesa_lock;
84 MTX_SYSINIT(vesa_lock, &vesa_lock, "VESA lock", MTX_DEF);
85
86 static int vesa_state;
87 static void *vesa_state_buf;
88 static uint32_t vesa_state_buf_offs;
89 static size_t vesa_state_buf_size;
90
91 static u_char *vesa_palette;
92 static uint32_t vesa_palette_offs;
93
94 static void *vesa_vmem_buf;
95 static size_t vesa_vmem_max;
96
97 static void *vesa_bios;
98 static uint32_t vesa_bios_offs;
99 static uint32_t vesa_bios_int10;
100 static size_t vesa_bios_size;
101
102 /* VESA video adapter */
103 static video_adapter_t *vesa_adp;
104
105 static SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
106 "VESA debugging");
107 static int vesa_shadow_rom;
108 SYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom,
109 0, "Enable video BIOS shadow");
110
111 /* VESA functions */
112 #if 0
113 static int vesa_nop(void);
114 #endif
115 static int vesa_error(void);
116 static vi_probe_t vesa_probe;
117 static vi_init_t vesa_init;
118 static vi_get_info_t vesa_get_info;
119 static vi_query_mode_t vesa_query_mode;
120 static vi_set_mode_t vesa_set_mode;
121 static vi_save_font_t vesa_save_font;
122 static vi_load_font_t vesa_load_font;
123 static vi_show_font_t vesa_show_font;
124 static vi_save_palette_t vesa_save_palette;
125 static vi_load_palette_t vesa_load_palette;
126 static vi_set_border_t vesa_set_border;
127 static vi_save_state_t vesa_save_state;
128 static vi_load_state_t vesa_load_state;
129 static vi_set_win_org_t vesa_set_origin;
130 static vi_read_hw_cursor_t vesa_read_hw_cursor;
131 static vi_set_hw_cursor_t vesa_set_hw_cursor;
132 static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
133 static vi_blank_display_t vesa_blank_display;
134 static vi_mmap_t vesa_mmap;
135 static vi_ioctl_t vesa_ioctl;
136 static vi_clear_t vesa_clear;
137 static vi_fill_rect_t vesa_fill_rect;
138 static vi_bitblt_t vesa_bitblt;
139 static vi_diag_t vesa_diag;
140 static int vesa_bios_info(int level);
141
142 static video_switch_t vesavidsw = {
143 vesa_probe,
144 vesa_init,
145 vesa_get_info,
146 vesa_query_mode,
147 vesa_set_mode,
148 vesa_save_font,
149 vesa_load_font,
150 vesa_show_font,
151 vesa_save_palette,
152 vesa_load_palette,
153 vesa_set_border,
154 vesa_save_state,
155 vesa_load_state,
156 vesa_set_origin,
157 vesa_read_hw_cursor,
158 vesa_set_hw_cursor,
159 vesa_set_hw_cursor_shape,
160 vesa_blank_display,
161 vesa_mmap,
162 vesa_ioctl,
163 vesa_clear,
164 vesa_fill_rect,
165 vesa_bitblt,
166 vesa_error,
167 vesa_error,
168 vesa_diag,
169 };
170
171 static video_switch_t *prevvidsw;
172
173 /* VESA BIOS video modes */
174 #define VESA_MAXMODES 64
175 #define EOT (-1)
176 #define NA (-2)
177
178 #define MODE_TABLE_DELTA 8
179
180 static int vesa_vmode_max;
181 static video_info_t *vesa_vmode;
182
183 static int vesa_init_done;
184 static struct vesa_info *vesa_adp_info;
185 static u_int16_t *vesa_vmodetab;
186 static char *vesa_oemstr;
187 static char *vesa_venderstr;
188 static char *vesa_prodstr;
189 static char *vesa_revstr;
190
191 /* local macros and functions */
192 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
193
194 static int int10_set_mode(int mode);
195 static int vesa_bios_post(void);
196 static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags);
197 static int vesa_bios_set_mode(int mode);
198 #if 0
199 static int vesa_bios_get_dac(void);
200 #endif
201 static int vesa_bios_set_dac(int bits);
202 static int vesa_bios_save_palette(int start, int colors, u_char *palette,
203 int bits);
204 static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
205 u_char *b, int bits);
206 static int vesa_bios_load_palette(int start, int colors, u_char *palette,
207 int bits);
208 static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
209 u_char *b, int bits);
210 #define STATE_SIZE 0
211 #define STATE_SAVE 1
212 #define STATE_LOAD 2
213 static size_t vesa_bios_state_buf_size(int);
214 static int vesa_bios_save_restore(int code, void *p);
215 #ifdef MODE_TABLE_BROKEN
216 static int vesa_bios_get_line_length(void);
217 #endif
218 static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
219 #if 0
220 static int vesa_bios_get_start(int *x, int *y);
221 #endif
222 static int vesa_bios_set_start(int x, int y);
223 static int vesa_map_gen_mode_num(int type, int color, int mode);
224 static int vesa_translate_flags(u_int16_t vflags);
225 static int vesa_translate_mmodel(u_int8_t vmodel);
226 static int vesa_get_bpscanline(struct vesa_mode *vmode);
227 static int vesa_bios_init(void);
228 static void vesa_bios_uninit(void);
229 static void vesa_clear_modes(video_info_t *info, int color);
230
231 #if 0
232 static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
233 #endif
234
235 /* INT 10 BIOS calls */
236 static int
237 int10_set_mode(int mode)
238 {
239 x86regs_t regs;
240
241 x86bios_init_regs(®s);
242 regs.R_AL = mode;
243
244 x86bios_intr(®s, 0x10);
245
246 return (0);
247 }
248
249 static int
250 vesa_bios_post(void)
251 {
252 x86regs_t regs;
253 devclass_t dc;
254 device_t *devs;
255 device_t dev;
256 int count, i, is_pci;
257
258 if (x86bios_get_orm(vesa_bios_offs) == NULL)
259 return (1);
260
261 dev = NULL;
262 is_pci = 0;
263
264 /* Find the matching PCI video controller. */
265 dc = devclass_find("vgapci");
266 if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) {
267 for (i = 0; i < count; i++)
268 if (device_get_flags(devs[i]) != 0 &&
269 x86bios_match_device(vesa_bios_offs, devs[i])) {
270 dev = devs[i];
271 is_pci = 1;
272 break;
273 }
274 free(devs, M_TEMP);
275 }
276
277 /* Try VGA if a PCI device is not found. */
278 if (dev == NULL) {
279 dc = devclass_find(VGA_DRIVER_NAME);
280 if (dc != NULL)
281 dev = devclass_get_device(dc, 0);
282 }
283
284 if (bootverbose)
285 printf("%s: calling BIOS POST\n",
286 dev == NULL ? "VESA" : device_get_nameunit(dev));
287
288 x86bios_init_regs(®s);
289 if (is_pci) {
290 regs.R_AH = pci_get_bus(dev);
291 regs.R_AL = (pci_get_slot(dev) << 3) |
292 (pci_get_function(dev) & 0x07);
293 }
294 regs.R_DL = 0x80;
295 x86bios_call(®s, X86BIOS_PHYSTOSEG(vesa_bios_offs + 3),
296 X86BIOS_PHYSTOOFF(vesa_bios_offs + 3));
297
298 if (x86bios_get_intr(0x10) == 0)
299 return (1);
300
301 return (0);
302 }
303
304 /* VESA BIOS calls */
305 static int
306 vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags)
307 {
308 x86regs_t regs;
309 uint32_t offs;
310 void *buf;
311
312 buf = x86bios_alloc(&offs, sizeof(*vmode), flags);
313 if (buf == NULL)
314 return (1);
315
316 x86bios_init_regs(®s);
317 regs.R_AX = 0x4f01;
318 regs.R_CX = mode;
319
320 regs.R_ES = X86BIOS_PHYSTOSEG(offs);
321 regs.R_DI = X86BIOS_PHYSTOOFF(offs);
322
323 x86bios_intr(®s, 0x10);
324
325 if (regs.R_AX != 0x004f) {
326 x86bios_free(buf, sizeof(*vmode));
327 return (1);
328 }
329
330 bcopy(buf, vmode, sizeof(*vmode));
331 x86bios_free(buf, sizeof(*vmode));
332
333 return (0);
334 }
335
336 static int
337 vesa_bios_set_mode(int mode)
338 {
339 x86regs_t regs;
340
341 x86bios_init_regs(®s);
342 regs.R_AX = 0x4f02;
343 regs.R_BX = mode;
344
345 x86bios_intr(®s, 0x10);
346
347 return (regs.R_AX != 0x004f);
348 }
349
350 #if 0
351 static int
352 vesa_bios_get_dac(void)
353 {
354 x86regs_t regs;
355
356 x86bios_init_regs(®s);
357 regs.R_AX = 0x4f08;
358 regs.R_BL = 1;
359
360 x86bios_intr(®s, 0x10);
361
362 if (regs.R_AX != 0x004f)
363 return (6);
364
365 return (regs.R_BH);
366 }
367 #endif
368
369 static int
370 vesa_bios_set_dac(int bits)
371 {
372 x86regs_t regs;
373
374 x86bios_init_regs(®s);
375 regs.R_AX = 0x4f08;
376 /* regs.R_BL = 0; */
377 regs.R_BH = bits;
378
379 x86bios_intr(®s, 0x10);
380
381 if (regs.R_AX != 0x004f)
382 return (6);
383
384 return (regs.R_BH);
385 }
386
387 static int
388 vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
389 {
390 x86regs_t regs;
391 int i;
392
393 x86bios_init_regs(®s);
394 regs.R_AX = 0x4f09;
395 regs.R_BL = 1;
396 regs.R_CX = colors;
397 regs.R_DX = start;
398
399 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
400 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
401
402 bits = 8 - bits;
403 mtx_lock(&vesa_lock);
404 x86bios_intr(®s, 0x10);
405 if (regs.R_AX != 0x004f) {
406 mtx_unlock(&vesa_lock);
407 return (1);
408 }
409 for (i = 0; i < colors; ++i) {
410 palette[i * 3] = vesa_palette[i * 4 + 2] << bits;
411 palette[i * 3 + 1] = vesa_palette[i * 4 + 1] << bits;
412 palette[i * 3 + 2] = vesa_palette[i * 4] << bits;
413 }
414 mtx_unlock(&vesa_lock);
415
416 return (0);
417 }
418
419 static int
420 vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
421 int bits)
422 {
423 x86regs_t regs;
424 int i;
425
426 x86bios_init_regs(®s);
427 regs.R_AX = 0x4f09;
428 regs.R_BL = 1;
429 regs.R_CX = colors;
430 regs.R_DX = start;
431
432 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
433 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
434
435 bits = 8 - bits;
436 mtx_lock(&vesa_lock);
437 x86bios_intr(®s, 0x10);
438 if (regs.R_AX != 0x004f) {
439 mtx_unlock(&vesa_lock);
440 return (1);
441 }
442 for (i = 0; i < colors; ++i) {
443 r[i] = vesa_palette[i * 4 + 2] << bits;
444 g[i] = vesa_palette[i * 4 + 1] << bits;
445 b[i] = vesa_palette[i * 4] << bits;
446 }
447 mtx_unlock(&vesa_lock);
448
449 return (0);
450 }
451
452 static int
453 vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
454 {
455 x86regs_t regs;
456 int i;
457
458 x86bios_init_regs(®s);
459 regs.R_AX = 0x4f09;
460 /* regs.R_BL = 0; */
461 regs.R_CX = colors;
462 regs.R_DX = start;
463
464 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
465 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
466
467 bits = 8 - bits;
468 mtx_lock(&vesa_lock);
469 for (i = 0; i < colors; ++i) {
470 vesa_palette[i * 4] = palette[i * 3 + 2] >> bits;
471 vesa_palette[i * 4 + 1] = palette[i * 3 + 1] >> bits;
472 vesa_palette[i * 4 + 2] = palette[i * 3] >> bits;
473 vesa_palette[i * 4 + 3] = 0;
474 }
475 x86bios_intr(®s, 0x10);
476 mtx_unlock(&vesa_lock);
477
478 return (regs.R_AX != 0x004f);
479 }
480
481 static int
482 vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
483 int bits)
484 {
485 x86regs_t regs;
486 int i;
487
488 x86bios_init_regs(®s);
489 regs.R_AX = 0x4f09;
490 /* regs.R_BL = 0; */
491 regs.R_CX = colors;
492 regs.R_DX = start;
493
494 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs);
495 regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs);
496
497 bits = 8 - bits;
498 mtx_lock(&vesa_lock);
499 for (i = 0; i < colors; ++i) {
500 vesa_palette[i * 4] = b[i] >> bits;
501 vesa_palette[i * 4 + 1] = g[i] >> bits;
502 vesa_palette[i * 4 + 2] = r[i] >> bits;
503 vesa_palette[i * 4 + 3] = 0;
504 }
505 x86bios_intr(®s, 0x10);
506 mtx_unlock(&vesa_lock);
507
508 return (regs.R_AX != 0x004f);
509 }
510
511 static size_t
512 vesa_bios_state_buf_size(int state)
513 {
514 x86regs_t regs;
515
516 x86bios_init_regs(®s);
517 regs.R_AX = 0x4f04;
518 /* regs.R_DL = STATE_SIZE; */
519 regs.R_CX = state;
520
521 x86bios_intr(®s, 0x10);
522
523 if (regs.R_AX != 0x004f)
524 return (0);
525
526 return (regs.R_BX * 64);
527 }
528
529 static int
530 vesa_bios_save_restore(int code, void *p)
531 {
532 x86regs_t regs;
533
534 if (code != STATE_SAVE && code != STATE_LOAD)
535 return (1);
536
537 x86bios_init_regs(®s);
538 regs.R_AX = 0x4f04;
539 regs.R_DL = code;
540 regs.R_CX = vesa_state;
541
542 regs.R_ES = X86BIOS_PHYSTOSEG(vesa_state_buf_offs);
543 regs.R_BX = X86BIOS_PHYSTOOFF(vesa_state_buf_offs);
544
545 mtx_lock(&vesa_lock);
546 switch (code) {
547 case STATE_SAVE:
548 x86bios_intr(®s, 0x10);
549 if (regs.R_AX == 0x004f)
550 bcopy(vesa_state_buf, p, vesa_state_buf_size);
551 break;
552 case STATE_LOAD:
553 bcopy(p, vesa_state_buf, vesa_state_buf_size);
554 x86bios_intr(®s, 0x10);
555 break;
556 }
557 mtx_unlock(&vesa_lock);
558
559 return (regs.R_AX != 0x004f);
560 }
561
562 #ifdef MODE_TABLE_BROKEN
563 static int
564 vesa_bios_get_line_length(void)
565 {
566 x86regs_t regs;
567
568 x86bios_init_regs(®s);
569 regs.R_AX = 0x4f06;
570 regs.R_BL = 1;
571
572 x86bios_intr(®s, 0x10);
573
574 if (regs.R_AX != 0x004f)
575 return (-1);
576
577 return (regs.R_BX);
578 }
579 #endif
580
581 static int
582 vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
583 {
584 x86regs_t regs;
585
586 x86bios_init_regs(®s);
587 regs.R_AX = 0x4f06;
588 /* regs.R_BL = 0; */
589 regs.R_CX = pixel;
590
591 x86bios_intr(®s, 0x10);
592
593 #if VESA_DEBUG > 1
594 printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX);
595 #endif
596 if (regs.R_AX != 0x004f)
597 return (-1);
598
599 if (bytes != NULL)
600 *bytes = regs.R_BX;
601 if (lines != NULL)
602 *lines = regs.R_DX;
603
604 return (0);
605 }
606
607 #if 0
608 static int
609 vesa_bios_get_start(int *x, int *y)
610 {
611 x86regs_t regs;
612
613 x86bios_init_regs(®s);
614 regs.R_AX = 0x4f07;
615 regs.R_BL = 1;
616
617 x86bios_intr(®s, 0x10);
618
619 if (regs.R_AX != 0x004f)
620 return (-1);
621
622 *x = regs.R_CX;
623 *y = regs.R_DX;
624
625 return (0);
626 }
627 #endif
628
629 static int
630 vesa_bios_set_start(int x, int y)
631 {
632 x86regs_t regs;
633
634 x86bios_init_regs(®s);
635 regs.R_AX = 0x4f07;
636 regs.R_BL = 0x80;
637 regs.R_CX = x;
638 regs.R_DX = y;
639
640 x86bios_intr(®s, 0x10);
641
642 return (regs.R_AX != 0x004f);
643 }
644
645 /* map a generic video mode to a known mode */
646 static int
647 vesa_map_gen_mode_num(int type, int color, int mode)
648 {
649 static struct {
650 int from;
651 int to;
652 } mode_map[] = {
653 { M_TEXT_132x25, M_VESA_C132x25 },
654 { M_TEXT_132x43, M_VESA_C132x43 },
655 { M_TEXT_132x50, M_VESA_C132x50 },
656 { M_TEXT_132x60, M_VESA_C132x60 },
657 };
658 int i;
659
660 for (i = 0; i < nitems(mode_map); ++i) {
661 if (mode_map[i].from == mode)
662 return (mode_map[i].to);
663 }
664 return (mode);
665 }
666
667 static int
668 vesa_translate_flags(u_int16_t vflags)
669 {
670 static struct {
671 u_int16_t mask;
672 int set;
673 int reset;
674 } ftable[] = {
675 { V_MODECOLOR, V_INFO_COLOR, 0 },
676 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
677 { V_MODELFB, V_INFO_LINEAR, 0 },
678 { V_MODENONVGA, V_INFO_NONVGA, 0 },
679 };
680 int flags;
681 int i;
682
683 for (flags = 0, i = 0; i < nitems(ftable); ++i) {
684 flags |= (vflags & ftable[i].mask) ?
685 ftable[i].set : ftable[i].reset;
686 }
687 return (flags);
688 }
689
690 static int
691 vesa_translate_mmodel(u_int8_t vmodel)
692 {
693 static struct {
694 u_int8_t vmodel;
695 int mmodel;
696 } mtable[] = {
697 { V_MMTEXT, V_INFO_MM_TEXT },
698 { V_MMCGA, V_INFO_MM_CGA },
699 { V_MMHGC, V_INFO_MM_HGC },
700 { V_MMEGA, V_INFO_MM_PLANAR },
701 { V_MMPACKED, V_INFO_MM_PACKED },
702 { V_MMDIRCOLOR, V_INFO_MM_DIRECT },
703 };
704 int i;
705
706 for (i = 0; mtable[i].mmodel >= 0; ++i) {
707 if (mtable[i].vmodel == vmodel)
708 return (mtable[i].mmodel);
709 }
710 return (V_INFO_MM_OTHER);
711 }
712
713 static int
714 vesa_get_bpscanline(struct vesa_mode *vmode)
715 {
716 int bpsl;
717
718 if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) {
719 /* Find the minimum length. */
720 switch (vmode->v_bpp / vmode->v_planes) {
721 case 1:
722 bpsl = vmode->v_width / 8;
723 break;
724 case 2:
725 bpsl = vmode->v_width / 4;
726 break;
727 case 4:
728 bpsl = vmode->v_width / 2;
729 break;
730 default:
731 bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8);
732 bpsl /= vmode->v_planes;
733 break;
734 }
735
736 /* Use VBE 3.0 information if it looks sane. */
737 if ((vmode->v_modeattr & V_MODELFB) != 0 &&
738 vesa_adp_info->v_version >= 0x0300 &&
739 vmode->v_linbpscanline > bpsl)
740 return (vmode->v_linbpscanline);
741
742 /* Return the minimum if the mode table looks absurd. */
743 if (vmode->v_bpscanline < bpsl)
744 return (bpsl);
745 }
746
747 return (vmode->v_bpscanline);
748 }
749
750 #define VESA_MAXSTR 256
751
752 #define VESA_STRCPY(dst, src) do { \
753 char *str; \
754 int i; \
755 dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \
756 str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \
757 for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \
758 dst[i] = str[i]; \
759 dst[i] = '\0'; \
760 } while (0)
761
762 static int
763 vesa_bios_init(void)
764 {
765 struct vesa_mode vmode;
766 struct vesa_info *buf;
767 video_info_t *p;
768 x86regs_t regs;
769 size_t bsize;
770 size_t msize;
771 void *vmbuf;
772 uint8_t *vbios;
773 uint32_t offs;
774 uint16_t vers;
775 int is_via_cle266;
776 int modes;
777 int i;
778
779 if (vesa_init_done)
780 return (0);
781
782 vesa_bios_offs = VESA_BIOS_OFFSET;
783
784 /*
785 * If the VBE real mode interrupt vector is not found, try BIOS POST.
786 */
787 vesa_bios_int10 = x86bios_get_intr(0x10);
788 if (vesa_bios_int10 == 0) {
789 if (vesa_bios_post() != 0)
790 return (1);
791 vesa_bios_int10 = x86bios_get_intr(0x10);
792 if (vesa_bios_int10 == 0)
793 return (1);
794 }
795
796 /*
797 * Shadow video ROM.
798 */
799 offs = vesa_bios_int10;
800 if (vesa_shadow_rom) {
801 vbios = x86bios_get_orm(vesa_bios_offs);
802 if (vbios != NULL) {
803 vesa_bios_size = vbios[2] * 512;
804 if (((VESA_BIOS_OFFSET << 12) & 0xffff0000) ==
805 (vesa_bios_int10 & 0xffff0000) &&
806 vesa_bios_size > (vesa_bios_int10 & 0xffff)) {
807 vesa_bios = x86bios_alloc(&vesa_bios_offs,
808 vesa_bios_size, M_WAITOK);
809 bcopy(vbios, vesa_bios, vesa_bios_size);
810 offs = ((vesa_bios_offs << 12) & 0xffff0000) +
811 (vesa_bios_int10 & 0xffff);
812 x86bios_set_intr(0x10, offs);
813 }
814 }
815 if (vesa_bios == NULL)
816 printf("VESA: failed to shadow video ROM\n");
817 }
818 if (bootverbose)
819 printf("VESA: INT 0x10 vector 0x%04x:0x%04x\n",
820 (offs >> 16) & 0xffff, offs & 0xffff);
821
822 x86bios_init_regs(®s);
823 regs.R_AX = 0x4f00;
824
825 vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK);
826
827 regs.R_ES = X86BIOS_PHYSTOSEG(offs);
828 regs.R_DI = X86BIOS_PHYSTOOFF(offs);
829
830 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
831 x86bios_intr(®s, 0x10);
832
833 if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0)
834 goto fail;
835
836 vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK);
837 bcopy(vmbuf, buf, sizeof(*buf));
838
839 if (bootverbose) {
840 printf("VESA: information block\n");
841 hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS);
842 }
843
844 vers = buf->v_version = le16toh(buf->v_version);
845 buf->v_oemstr = le32toh(buf->v_oemstr);
846 buf->v_flags = le32toh(buf->v_flags);
847 buf->v_modetable = le32toh(buf->v_modetable);
848 buf->v_memsize = le16toh(buf->v_memsize);
849 buf->v_revision = le16toh(buf->v_revision);
850 buf->v_venderstr = le32toh(buf->v_venderstr);
851 buf->v_prodstr = le32toh(buf->v_prodstr);
852 buf->v_revstr = le32toh(buf->v_revstr);
853
854 if (vers < 0x0102) {
855 printf("VESA: VBE version %d.%d is not supported; "
856 "version 1.2 or later is required.\n",
857 ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8),
858 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f));
859 goto fail;
860 }
861
862 VESA_STRCPY(vesa_oemstr, buf->v_oemstr);
863 if (vers >= 0x0200) {
864 VESA_STRCPY(vesa_venderstr, buf->v_venderstr);
865 VESA_STRCPY(vesa_prodstr, buf->v_prodstr);
866 VESA_STRCPY(vesa_revstr, buf->v_revstr);
867 }
868 is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266,
869 sizeof(VESA_VIA_CLE266)) == 0;
870
871 if (buf->v_modetable == 0)
872 goto fail;
873
874 msize = (size_t)buf->v_memsize * 64 * 1024;
875
876 vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable));
877
878 for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) &&
879 (vesa_vmodetab[i] != 0xffff); ++i) {
880 vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]);
881 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK))
882 continue;
883
884 vmode.v_modeattr = le16toh(vmode.v_modeattr);
885 vmode.v_wgran = le16toh(vmode.v_wgran);
886 vmode.v_wsize = le16toh(vmode.v_wsize);
887 vmode.v_waseg = le16toh(vmode.v_waseg);
888 vmode.v_wbseg = le16toh(vmode.v_wbseg);
889 vmode.v_posfunc = le32toh(vmode.v_posfunc);
890 vmode.v_bpscanline = le16toh(vmode.v_bpscanline);
891 vmode.v_width = le16toh(vmode.v_width);
892 vmode.v_height = le16toh(vmode.v_height);
893 vmode.v_lfb = le32toh(vmode.v_lfb);
894 vmode.v_offscreen = le32toh(vmode.v_offscreen);
895 vmode.v_offscreensize = le16toh(vmode.v_offscreensize);
896 vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline);
897 vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock);
898
899 /* reject unsupported modes */
900 #if 0
901 if ((vmode.v_modeattr &
902 (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) !=
903 (V_MODESUPP | V_MODEOPTINFO))
904 continue;
905 #else
906 if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) {
907 #if VESA_DEBUG > 1
908 printf("Rejecting VESA %s mode: %d x %d x %d bpp "
909 " attr = %x\n",
910 vmode.v_modeattr & V_MODEGRAPHICS ?
911 "graphics" : "text",
912 vmode.v_width, vmode.v_height, vmode.v_bpp,
913 vmode.v_modeattr);
914 #endif
915 continue;
916 }
917 #endif
918
919 bsize = vesa_get_bpscanline(&vmode) * vmode.v_height;
920 if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0)
921 bsize *= vmode.v_planes;
922
923 /* Does it have enough memory to support this mode? */
924 if (msize < bsize) {
925 #if VESA_DEBUG > 1
926 printf("Rejecting VESA %s mode: %d x %d x %d bpp "
927 " attr = %x, not enough memory\n",
928 vmode.v_modeattr & V_MODEGRAPHICS ?
929 "graphics" : "text",
930 vmode.v_width, vmode.v_height, vmode.v_bpp,
931 vmode.v_modeattr);
932 #endif
933 continue;
934 }
935 if (bsize > vesa_vmem_max)
936 vesa_vmem_max = bsize;
937
938 /* expand the array if necessary */
939 if (modes >= vesa_vmode_max) {
940 vesa_vmode_max += MODE_TABLE_DELTA;
941 p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1),
942 M_DEVBUF, M_WAITOK);
943 #if VESA_DEBUG > 1
944 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
945 modes, vesa_vmode_max);
946 #endif
947 if (modes > 0) {
948 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
949 free(vesa_vmode, M_DEVBUF);
950 }
951 vesa_vmode = p;
952 }
953
954 #if VESA_DEBUG > 1
955 printf("Found VESA %s mode: %d x %d x %d bpp\n",
956 vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text",
957 vmode.v_width, vmode.v_height, vmode.v_bpp);
958 #endif
959 if (is_via_cle266) {
960 if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) {
961 vmode.v_width &= 0xff;
962 vmode.v_waseg = 0xb8000 >> 4;
963 }
964 }
965
966 /* copy some fields */
967 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
968 vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
969 vesa_vmode[modes].vi_width = vmode.v_width;
970 vesa_vmode[modes].vi_height = vmode.v_height;
971 vesa_vmode[modes].vi_depth = vmode.v_bpp;
972 vesa_vmode[modes].vi_planes = vmode.v_planes;
973 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
974 vesa_vmode[modes].vi_cheight = vmode.v_cheight;
975 vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4;
976 /* XXX window B */
977 vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024;
978 vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024;
979 if (vmode.v_modeattr & V_MODELFB)
980 vesa_vmode[modes].vi_buffer = vmode.v_lfb;
981 vesa_vmode[modes].vi_buffer_size = bsize;
982 vesa_vmode[modes].vi_mem_model =
983 vesa_translate_mmodel(vmode.v_memmodel);
984 switch (vesa_vmode[modes].vi_mem_model) {
985 case V_INFO_MM_DIRECT:
986 if ((vmode.v_modeattr & V_MODELFB) != 0 &&
987 vers >= 0x0300) {
988 vesa_vmode[modes].vi_pixel_fields[0] =
989 vmode.v_linredfieldpos;
990 vesa_vmode[modes].vi_pixel_fields[1] =
991 vmode.v_lingreenfieldpos;
992 vesa_vmode[modes].vi_pixel_fields[2] =
993 vmode.v_linbluefieldpos;
994 vesa_vmode[modes].vi_pixel_fields[3] =
995 vmode.v_linresfieldpos;
996 vesa_vmode[modes].vi_pixel_fsizes[0] =
997 vmode.v_linredmasksize;
998 vesa_vmode[modes].vi_pixel_fsizes[1] =
999 vmode.v_lingreenmasksize;
1000 vesa_vmode[modes].vi_pixel_fsizes[2] =
1001 vmode.v_linbluemasksize;
1002 vesa_vmode[modes].vi_pixel_fsizes[3] =
1003 vmode.v_linresmasksize;
1004 } else {
1005 vesa_vmode[modes].vi_pixel_fields[0] =
1006 vmode.v_redfieldpos;
1007 vesa_vmode[modes].vi_pixel_fields[1] =
1008 vmode.v_greenfieldpos;
1009 vesa_vmode[modes].vi_pixel_fields[2] =
1010 vmode.v_bluefieldpos;
1011 vesa_vmode[modes].vi_pixel_fields[3] =
1012 vmode.v_resfieldpos;
1013 vesa_vmode[modes].vi_pixel_fsizes[0] =
1014 vmode.v_redmasksize;
1015 vesa_vmode[modes].vi_pixel_fsizes[1] =
1016 vmode.v_greenmasksize;
1017 vesa_vmode[modes].vi_pixel_fsizes[2] =
1018 vmode.v_bluemasksize;
1019 vesa_vmode[modes].vi_pixel_fsizes[3] =
1020 vmode.v_resmasksize;
1021 }
1022 /* FALLTHROUGH */
1023 case V_INFO_MM_PACKED:
1024 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8;
1025 break;
1026 }
1027 vesa_vmode[modes].vi_flags =
1028 vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
1029
1030 ++modes;
1031 }
1032 if (vesa_vmode != NULL)
1033 vesa_vmode[modes].vi_mode = EOT;
1034
1035 if (bootverbose)
1036 printf("VESA: %d mode(s) found\n", modes);
1037
1038 if (modes == 0)
1039 goto fail;
1040
1041 x86bios_free(vmbuf, sizeof(*buf));
1042
1043 /* Probe supported save/restore states. */
1044 for (i = 0; i < 4; i++)
1045 if (vesa_bios_state_buf_size(1 << i) > 0)
1046 vesa_state |= 1 << i;
1047 if (vesa_state != 0)
1048 vesa_state_buf_size = vesa_bios_state_buf_size(vesa_state);
1049 vesa_palette = x86bios_alloc(&vesa_palette_offs,
1050 VESA_PALETTE_SIZE + vesa_state_buf_size, M_WAITOK);
1051 if (vesa_state_buf_size > 0) {
1052 vesa_state_buf = vesa_palette + VESA_PALETTE_SIZE;
1053 vesa_state_buf_offs = vesa_palette_offs + VESA_PALETTE_SIZE;
1054 }
1055
1056 return (0);
1057
1058 fail:
1059 x86bios_free(vmbuf, sizeof(buf));
1060 vesa_bios_uninit();
1061 return (1);
1062 }
1063
1064 static void
1065 vesa_bios_uninit(void)
1066 {
1067
1068 if (vesa_bios != NULL) {
1069 x86bios_set_intr(0x10, vesa_bios_int10);
1070 vesa_bios_offs = VESA_BIOS_OFFSET;
1071 x86bios_free(vesa_bios, vesa_bios_size);
1072 vesa_bios = NULL;
1073 }
1074 if (vesa_adp_info != NULL) {
1075 free(vesa_adp_info, M_DEVBUF);
1076 vesa_adp_info = NULL;
1077 }
1078 if (vesa_oemstr != NULL) {
1079 free(vesa_oemstr, M_DEVBUF);
1080 vesa_oemstr = NULL;
1081 }
1082 if (vesa_venderstr != NULL) {
1083 free(vesa_venderstr, M_DEVBUF);
1084 vesa_venderstr = NULL;
1085 }
1086 if (vesa_prodstr != NULL) {
1087 free(vesa_prodstr, M_DEVBUF);
1088 vesa_prodstr = NULL;
1089 }
1090 if (vesa_revstr != NULL) {
1091 free(vesa_revstr, M_DEVBUF);
1092 vesa_revstr = NULL;
1093 }
1094 if (vesa_vmode != NULL) {
1095 free(vesa_vmode, M_DEVBUF);
1096 vesa_vmode = NULL;
1097 }
1098 if (vesa_palette != NULL) {
1099 x86bios_free(vesa_palette,
1100 VESA_PALETTE_SIZE + vesa_state_buf_size);
1101 vesa_palette = NULL;
1102 }
1103 }
1104
1105 static void
1106 vesa_clear_modes(video_info_t *info, int color)
1107 {
1108 while (info->vi_mode != EOT) {
1109 if ((info->vi_flags & V_INFO_COLOR) != color)
1110 info->vi_mode = NA;
1111 ++info;
1112 }
1113 }
1114
1115 /* entry points */
1116
1117 static int
1118 vesa_configure(int flags)
1119 {
1120 video_adapter_t *adp;
1121 int adapters;
1122 int error;
1123 int i;
1124
1125 if (vesa_init_done)
1126 return (0);
1127 if (flags & VIO_PROBE_ONLY)
1128 return (0);
1129
1130 /*
1131 * If the VESA module has already been loaded, abort loading
1132 * the module this time.
1133 */
1134 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
1135 if (adp->va_flags & V_ADP_VESA)
1136 return (ENXIO);
1137 if (adp->va_type == KD_VGA)
1138 break;
1139 }
1140
1141 /*
1142 * The VGA adapter is not found. This is because either
1143 * 1) the VGA driver has not been initialized, or 2) the VGA card
1144 * is not present. If 1) is the case, we shall defer
1145 * initialization for now and try again later.
1146 */
1147 if (adp == NULL) {
1148 vga_sub_configure = vesa_configure;
1149 return (ENODEV);
1150 }
1151
1152 /* count number of registered adapters */
1153 for (++i; vid_get_adapter(i) != NULL; ++i)
1154 ;
1155 adapters = i;
1156
1157 /* call VESA BIOS */
1158 vesa_adp = adp;
1159 if (vesa_bios_init()) {
1160 vesa_adp = NULL;
1161 return (ENXIO);
1162 }
1163 vesa_adp->va_flags |= V_ADP_VESA;
1164
1165 /* remove conflicting modes if we have more than one adapter */
1166 if (adapters > 1) {
1167 vesa_clear_modes(vesa_vmode,
1168 (vesa_adp->va_flags & V_ADP_COLOR) ?
1169 V_INFO_COLOR : 0);
1170 }
1171
1172 if ((error = vesa_load_ioctl()) == 0) {
1173 prevvidsw = vidsw[vesa_adp->va_index];
1174 vidsw[vesa_adp->va_index] = &vesavidsw;
1175 vesa_init_done = TRUE;
1176 } else {
1177 vesa_adp = NULL;
1178 return (error);
1179 }
1180
1181 return (0);
1182 }
1183
1184 #if 0
1185 static int
1186 vesa_nop(void)
1187 {
1188
1189 return (0);
1190 }
1191 #endif
1192
1193 static int
1194 vesa_error(void)
1195 {
1196
1197 return (1);
1198 }
1199
1200 static int
1201 vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
1202 {
1203
1204 return ((*prevvidsw->probe)(unit, adpp, arg, flags));
1205 }
1206
1207 static int
1208 vesa_init(int unit, video_adapter_t *adp, int flags)
1209 {
1210
1211 return ((*prevvidsw->init)(unit, adp, flags));
1212 }
1213
1214 static int
1215 vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
1216 {
1217 int i;
1218
1219 if ((*prevvidsw->get_info)(adp, mode, info) == 0)
1220 return (0);
1221
1222 if (adp != vesa_adp)
1223 return (1);
1224
1225 mode = vesa_map_gen_mode_num(vesa_adp->va_type,
1226 vesa_adp->va_flags & V_ADP_COLOR, mode);
1227 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1228 if (vesa_vmode[i].vi_mode == NA)
1229 continue;
1230 if (vesa_vmode[i].vi_mode == mode) {
1231 *info = vesa_vmode[i];
1232 return (0);
1233 }
1234 }
1235 return (1);
1236 }
1237
1238 static int
1239 vesa_query_mode(video_adapter_t *adp, video_info_t *info)
1240 {
1241 int i;
1242
1243 if ((*prevvidsw->query_mode)(adp, info) == 0)
1244 return (0);
1245 if (adp != vesa_adp)
1246 return (ENODEV);
1247
1248 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
1249 if ((info->vi_width != 0)
1250 && (info->vi_width != vesa_vmode[i].vi_width))
1251 continue;
1252 if ((info->vi_height != 0)
1253 && (info->vi_height != vesa_vmode[i].vi_height))
1254 continue;
1255 if ((info->vi_cwidth != 0)
1256 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
1257 continue;
1258 if ((info->vi_cheight != 0)
1259 && (info->vi_cheight != vesa_vmode[i].vi_cheight))
1260 continue;
1261 if ((info->vi_depth != 0)
1262 && (info->vi_depth != vesa_vmode[i].vi_depth))
1263 continue;
1264 if ((info->vi_planes != 0)
1265 && (info->vi_planes != vesa_vmode[i].vi_planes))
1266 continue;
1267 /* pixel format, memory model */
1268 if ((info->vi_flags != 0)
1269 && (info->vi_flags != vesa_vmode[i].vi_flags))
1270 continue;
1271 *info = vesa_vmode[i];
1272 return (0);
1273 }
1274 return (ENODEV);
1275 }
1276
1277 static int
1278 vesa_set_mode(video_adapter_t *adp, int mode)
1279 {
1280 video_info_t info;
1281
1282 if (adp != vesa_adp)
1283 return ((*prevvidsw->set_mode)(adp, mode));
1284
1285 mode = vesa_map_gen_mode_num(adp->va_type,
1286 adp->va_flags & V_ADP_COLOR, mode);
1287 #if VESA_DEBUG > 0
1288 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n",
1289 adp->va_mode, adp->va_mode, mode, mode);
1290 #endif
1291 /*
1292 * If the current mode is a VESA mode and the new mode is not,
1293 * restore the state of the adapter first by setting one of the
1294 * standard VGA mode, so that non-standard, extended SVGA registers
1295 * are set to the state compatible with the standard VGA modes.
1296 * Otherwise (*prevvidsw->set_mode)() may not be able to set up
1297 * the new mode correctly.
1298 */
1299 if (VESA_MODE(adp->va_mode)) {
1300 if (!VESA_MODE(mode) &&
1301 (*prevvidsw->get_info)(adp, mode, &info) == 0) {
1302 if ((adp->va_flags & V_ADP_DAC8) != 0) {
1303 vesa_bios_set_dac(6);
1304 adp->va_flags &= ~V_ADP_DAC8;
1305 }
1306 int10_set_mode(adp->va_initial_bios_mode);
1307 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1308 pmap_unmapdev((void *)adp->va_buffer,
1309 vesa_vmem_max);
1310 /*
1311 * Once (*prevvidsw->get_info)() succeeded,
1312 * (*prevvidsw->set_mode)() below won't fail...
1313 */
1314 }
1315 }
1316
1317 /* we may not need to handle this mode after all... */
1318 if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0)
1319 return (0);
1320
1321 /* is the new mode supported? */
1322 if (vesa_get_info(adp, mode, &info))
1323 return (1);
1324 /* assert(VESA_MODE(mode)); */
1325
1326 #if VESA_DEBUG > 0
1327 printf("VESA: about to set a VESA mode...\n");
1328 #endif
1329 /*
1330 * The mode change should reset the palette format to 6 bits, so
1331 * we must reset V_ADP_DAC8. Some BIOSes do an incomplete reset
1332 * if we call them with an 8-bit palette, so reset directly.
1333 */
1334 if (adp->va_flags & V_ADP_DAC8) {
1335 vesa_bios_set_dac(6);
1336 adp->va_flags &= ~V_ADP_DAC8;
1337 }
1338
1339 /* don't use the linear frame buffer for text modes. XXX */
1340 if (!(info.vi_flags & V_INFO_GRAPHICS))
1341 info.vi_flags &= ~V_INFO_LINEAR;
1342
1343 if ((info.vi_flags & V_INFO_LINEAR) != 0)
1344 mode |= 0x4000;
1345 if (vesa_bios_set_mode(mode | 0x8000))
1346 return (1);
1347
1348 if ((vesa_adp_info->v_flags & V_DAC8) != 0 &&
1349 (info.vi_flags & V_INFO_GRAPHICS) != 0 &&
1350 vesa_bios_set_dac(8) > 6)
1351 adp->va_flags |= V_ADP_DAC8;
1352
1353 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1354 pmap_unmapdev((void *)adp->va_buffer, vesa_vmem_max);
1355
1356 #if VESA_DEBUG > 0
1357 printf("VESA: mode set!\n");
1358 #endif
1359 vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */
1360 vesa_adp->va_flags &= ~V_ADP_COLOR;
1361 vesa_adp->va_flags |=
1362 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
1363 vesa_adp->va_crtc_addr =
1364 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
1365
1366 vesa_adp->va_flags &= ~V_ADP_CWIDTH9;
1367 vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height;
1368 if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
1369 vesa_adp->va_line_width /= info.vi_planes;
1370
1371 #ifdef MODE_TABLE_BROKEN
1372 /* If VBE function returns bigger bytes per scan line, use it. */
1373 {
1374 int bpsl = vesa_bios_get_line_length();
1375 if (bpsl > vesa_adp->va_line_width) {
1376 vesa_adp->va_line_width = bpsl;
1377 info.vi_buffer_size = bpsl * info.vi_height;
1378 if ((info.vi_flags & V_INFO_GRAPHICS) != 0)
1379 info.vi_buffer_size *= info.vi_planes;
1380 }
1381 }
1382 #endif
1383
1384 if (info.vi_flags & V_INFO_LINEAR) {
1385 #if VESA_DEBUG > 1
1386 printf("VESA: setting up LFB\n");
1387 #endif
1388 vesa_adp->va_buffer =
1389 (vm_offset_t)pmap_mapdev_attr(info.vi_buffer,
1390 vesa_vmem_max, PAT_WRITE_COMBINING);
1391 vesa_adp->va_window = vesa_adp->va_buffer;
1392 vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes;
1393 vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes;
1394 } else {
1395 vesa_adp->va_buffer = 0;
1396 vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window);
1397 vesa_adp->va_window_size = info.vi_window_size;
1398 vesa_adp->va_window_gran = info.vi_window_gran;
1399 }
1400 vesa_adp->va_buffer_size = info.vi_buffer_size;
1401 vesa_adp->va_window_orig = 0;
1402 vesa_adp->va_disp_start.x = 0;
1403 vesa_adp->va_disp_start.y = 0;
1404 #if VESA_DEBUG > 0
1405 printf("vesa_set_mode(): vi_width:%d, line_width:%d\n",
1406 info.vi_width, vesa_adp->va_line_width);
1407 #endif
1408 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
1409
1410 /* move hardware cursor out of the way */
1411 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
1412
1413 return (0);
1414 }
1415
1416 static int
1417 vesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1418 u_char *data, int ch, int count)
1419 {
1420
1421 return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data,
1422 ch, count));
1423 }
1424
1425 static int
1426 vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth,
1427 u_char *data, int ch, int count)
1428 {
1429
1430 return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data,
1431 ch, count));
1432 }
1433
1434 static int
1435 vesa_show_font(video_adapter_t *adp, int page)
1436 {
1437
1438 return ((*prevvidsw->show_font)(adp, page));
1439 }
1440
1441 static int
1442 vesa_save_palette(video_adapter_t *adp, u_char *palette)
1443 {
1444 int bits;
1445
1446 if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
1447 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1448 if (vesa_bios_save_palette(0, 256, palette, bits) == 0)
1449 return (0);
1450 }
1451
1452 return ((*prevvidsw->save_palette)(adp, palette));
1453 }
1454
1455 static int
1456 vesa_load_palette(video_adapter_t *adp, u_char *palette)
1457 {
1458 int bits;
1459
1460 if (adp == vesa_adp && VESA_MODE(adp->va_mode)) {
1461 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1462 if (vesa_bios_load_palette(0, 256, palette, bits) == 0)
1463 return (0);
1464 }
1465
1466 return ((*prevvidsw->load_palette)(adp, palette));
1467 }
1468
1469 static int
1470 vesa_set_border(video_adapter_t *adp, int color)
1471 {
1472
1473 return ((*prevvidsw->set_border)(adp, color));
1474 }
1475
1476 static int
1477 vesa_save_state(video_adapter_t *adp, void *p, size_t size)
1478 {
1479 void *buf;
1480 size_t bsize;
1481
1482 if (adp != vesa_adp || (size == 0 && vesa_state_buf_size == 0))
1483 return ((*prevvidsw->save_state)(adp, p, size));
1484
1485 bsize = offsetof(adp_state_t, regs) + vesa_state_buf_size;
1486 if (size == 0)
1487 return (bsize);
1488 if (vesa_state_buf_size > 0 && size < bsize)
1489 return (EINVAL);
1490
1491 if (vesa_vmem_buf != NULL) {
1492 free(vesa_vmem_buf, M_DEVBUF);
1493 vesa_vmem_buf = NULL;
1494 }
1495 if (VESA_MODE(adp->va_mode)) {
1496 buf = (void *)adp->va_buffer;
1497 if (buf != NULL) {
1498 bsize = adp->va_buffer_size;
1499 vesa_vmem_buf = malloc(bsize, M_DEVBUF, M_NOWAIT);
1500 if (vesa_vmem_buf != NULL)
1501 bcopy(buf, vesa_vmem_buf, bsize);
1502 }
1503 }
1504 if (vesa_state_buf_size == 0)
1505 return ((*prevvidsw->save_state)(adp, p, size));
1506 ((adp_state_t *)p)->sig = V_STATE_SIG;
1507 return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs));
1508 }
1509
1510 static int
1511 vesa_load_state(video_adapter_t *adp, void *p)
1512 {
1513 void *buf;
1514 size_t bsize;
1515 int error, mode;
1516
1517 if (adp != vesa_adp)
1518 return ((*prevvidsw->load_state)(adp, p));
1519
1520 /* Try BIOS POST to restore a sane state. */
1521 (void)vesa_bios_post();
1522 bsize = adp->va_buffer_size;
1523 mode = adp->va_mode;
1524 error = vesa_set_mode(adp, adp->va_initial_mode);
1525 if (mode != adp->va_initial_mode)
1526 error = vesa_set_mode(adp, mode);
1527
1528 if (vesa_vmem_buf != NULL) {
1529 if (error == 0 && VESA_MODE(mode)) {
1530 buf = (void *)adp->va_buffer;
1531 if (buf != NULL)
1532 bcopy(vesa_vmem_buf, buf, bsize);
1533 }
1534 free(vesa_vmem_buf, M_DEVBUF);
1535 vesa_vmem_buf = NULL;
1536 }
1537 if (((adp_state_t *)p)->sig != V_STATE_SIG)
1538 return ((*prevvidsw->load_state)(adp, p));
1539 return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs));
1540 }
1541
1542 #if 0
1543 static int
1544 vesa_get_origin(video_adapter_t *adp, off_t *offset)
1545 {
1546 x86regs_t regs;
1547
1548 x86bios_init_regs(®s);
1549 regs.R_AX = 0x4f05;
1550 regs.R_BL = 0x10;
1551
1552 x86bios_intr(®s, 0x10);
1553
1554 if (regs.R_AX != 0x004f)
1555 return (1);
1556 *offset = regs.DX * adp->va_window_gran;
1557
1558 return (0);
1559 }
1560 #endif
1561
1562 static int
1563 vesa_set_origin(video_adapter_t *adp, off_t offset)
1564 {
1565 x86regs_t regs;
1566
1567 /*
1568 * This function should return as quickly as possible to
1569 * maintain good performance of the system. For this reason,
1570 * error checking is kept minimal and let the VESA BIOS to
1571 * detect error.
1572 */
1573 if (adp != vesa_adp)
1574 return ((*prevvidsw->set_win_org)(adp, offset));
1575
1576 /* if this is a linear frame buffer, do nothing */
1577 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1578 return (0);
1579 /* XXX */
1580 if (adp->va_window_gran == 0)
1581 return (1);
1582
1583 x86bios_init_regs(®s);
1584 regs.R_AX = 0x4f05;
1585 regs.R_DX = offset / adp->va_window_gran;
1586
1587 x86bios_intr(®s, 0x10);
1588
1589 if (regs.R_AX != 0x004f)
1590 return (1);
1591
1592 x86bios_init_regs(®s);
1593 regs.R_AX = 0x4f05;
1594 regs.R_BL = 1;
1595 regs.R_DX = offset / adp->va_window_gran;
1596 x86bios_intr(®s, 0x10);
1597
1598 adp->va_window_orig = rounddown(offset, adp->va_window_gran);
1599 return (0); /* XXX */
1600 }
1601
1602 static int
1603 vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1604 {
1605
1606 return ((*prevvidsw->read_hw_cursor)(adp, col, row));
1607 }
1608
1609 static int
1610 vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
1611 {
1612
1613 return ((*prevvidsw->set_hw_cursor)(adp, col, row));
1614 }
1615
1616 static int
1617 vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1618 int celsize, int blink)
1619 {
1620
1621 return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
1622 blink));
1623 }
1624
1625 static int
1626 vesa_blank_display(video_adapter_t *adp, int mode)
1627 {
1628
1629 /* XXX: use VESA DPMS */
1630 return ((*prevvidsw->blank_display)(adp, mode));
1631 }
1632
1633 static int
1634 vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
1635 int prot, vm_memattr_t *memattr)
1636 {
1637
1638 #if VESA_DEBUG > 0
1639 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n",
1640 adp->va_info.vi_window, adp->va_info.vi_buffer, offset);
1641 #endif
1642
1643 if ((adp == vesa_adp) &&
1644 (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) {
1645 /* va_window_size == va_buffer_size/vi_planes */
1646 /* XXX: is this correct? */
1647 if (offset > adp->va_window_size - PAGE_SIZE)
1648 return (-1);
1649 *paddr = adp->va_info.vi_buffer + offset;
1650 #ifdef VM_MEMATTR_WRITE_COMBINING
1651 *memattr = VM_MEMATTR_WRITE_COMBINING;
1652 #endif
1653 return (0);
1654 }
1655 return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr));
1656 }
1657
1658 static int
1659 vesa_clear(video_adapter_t *adp)
1660 {
1661
1662 return ((*prevvidsw->clear)(adp));
1663 }
1664
1665 static int
1666 vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1667 {
1668
1669 return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy));
1670 }
1671
1672 static int
1673 vesa_bitblt(video_adapter_t *adp,...)
1674 {
1675
1676 /* FIXME */
1677 return (1);
1678 }
1679
1680 static int
1681 get_palette(video_adapter_t *adp, int base, int count,
1682 u_char *red, u_char *green, u_char *blue, u_char *trans)
1683 {
1684 u_char *r;
1685 u_char *g;
1686 u_char *b;
1687 int bits;
1688 int error;
1689
1690 if (base < 0 || base >= 256 || count < 0 || count > 256)
1691 return (1);
1692 if ((base + count) > 256)
1693 return (1);
1694 if (!VESA_MODE(adp->va_mode))
1695 return (1);
1696
1697 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1698 r = malloc(count * 3, M_DEVBUF, M_WAITOK);
1699 g = r + count;
1700 b = g + count;
1701 error = vesa_bios_save_palette2(base, count, r, g, b, bits);
1702 if (error == 0) {
1703 copyout(r, red, count);
1704 copyout(g, green, count);
1705 copyout(b, blue, count);
1706 if (trans != NULL) {
1707 bzero(r, count);
1708 copyout(r, trans, count);
1709 }
1710 }
1711 free(r, M_DEVBUF);
1712
1713 return (error);
1714 }
1715
1716 static int
1717 set_palette(video_adapter_t *adp, int base, int count,
1718 u_char *red, u_char *green, u_char *blue, u_char *trans)
1719 {
1720 u_char *r;
1721 u_char *g;
1722 u_char *b;
1723 int bits;
1724 int error;
1725
1726 if (base < 0 || base >= 256 || count < 0 || count > 256)
1727 return (1);
1728 if ((base + count) > 256)
1729 return (1);
1730 if (!VESA_MODE(adp->va_mode))
1731 return (1);
1732
1733 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6;
1734 r = malloc(count * 3, M_DEVBUF, M_WAITOK);
1735 g = r + count;
1736 b = g + count;
1737 copyin(red, r, count);
1738 copyin(green, g, count);
1739 copyin(blue, b, count);
1740
1741 error = vesa_bios_load_palette2(base, count, r, g, b, bits);
1742 free(r, M_DEVBUF);
1743
1744 return (error);
1745 }
1746
1747 static int
1748 vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
1749 {
1750 int bytes;
1751
1752 if (adp != vesa_adp)
1753 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1754
1755 switch (cmd) {
1756 case FBIO_SETWINORG: /* set frame buffer window origin */
1757 if (!VESA_MODE(adp->va_mode))
1758 return (*prevvidsw->ioctl)(adp, cmd, arg);
1759 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
1760
1761 case FBIO_SETDISPSTART: /* set display start address */
1762 if (!VESA_MODE(adp->va_mode))
1763 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1764 if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
1765 ((video_display_start_t *)arg)->y))
1766 return (ENODEV);
1767 adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
1768 adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
1769 return (0);
1770
1771 case FBIO_SETLINEWIDTH: /* set line length in pixel */
1772 if (!VESA_MODE(adp->va_mode))
1773 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1774 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
1775 return (ENODEV);
1776 adp->va_line_width = bytes;
1777 #if VESA_DEBUG > 1
1778 printf("new line width:%d\n", adp->va_line_width);
1779 #endif
1780 return (0);
1781
1782 case FBIO_GETPALETTE: /* get color palette */
1783 if (get_palette(adp, ((video_color_palette_t *)arg)->index,
1784 ((video_color_palette_t *)arg)->count,
1785 ((video_color_palette_t *)arg)->red,
1786 ((video_color_palette_t *)arg)->green,
1787 ((video_color_palette_t *)arg)->blue,
1788 ((video_color_palette_t *)arg)->transparent))
1789 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1790 return (0);
1791
1792
1793 case FBIO_SETPALETTE: /* set color palette */
1794 if (set_palette(adp, ((video_color_palette_t *)arg)->index,
1795 ((video_color_palette_t *)arg)->count,
1796 ((video_color_palette_t *)arg)->red,
1797 ((video_color_palette_t *)arg)->green,
1798 ((video_color_palette_t *)arg)->blue,
1799 ((video_color_palette_t *)arg)->transparent))
1800 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1801 return (0);
1802
1803 case FBIOGETCMAP: /* get color palette */
1804 if (get_palette(adp, ((struct fbcmap *)arg)->index,
1805 ((struct fbcmap *)arg)->count,
1806 ((struct fbcmap *)arg)->red,
1807 ((struct fbcmap *)arg)->green,
1808 ((struct fbcmap *)arg)->blue, NULL))
1809 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1810 return (0);
1811
1812 case FBIOPUTCMAP: /* set color palette */
1813 if (set_palette(adp, ((struct fbcmap *)arg)->index,
1814 ((struct fbcmap *)arg)->count,
1815 ((struct fbcmap *)arg)->red,
1816 ((struct fbcmap *)arg)->green,
1817 ((struct fbcmap *)arg)->blue, NULL))
1818 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1819 return (0);
1820
1821 default:
1822 return ((*prevvidsw->ioctl)(adp, cmd, arg));
1823 }
1824 }
1825
1826 static int
1827 vesa_diag(video_adapter_t *adp, int level)
1828 {
1829 int error;
1830
1831 /* call the previous handler first */
1832 error = (*prevvidsw->diag)(adp, level);
1833 if (error)
1834 return (error);
1835
1836 if (adp != vesa_adp)
1837 return (1);
1838
1839 if (level <= 0)
1840 return (0);
1841
1842 return (0);
1843 }
1844
1845 static int
1846 vesa_bios_info(int level)
1847 {
1848 #if VESA_DEBUG > 1
1849 struct vesa_mode vmode;
1850 int i;
1851 #endif
1852 uint16_t vers;
1853
1854 vers = vesa_adp_info->v_version;
1855
1856 if (bootverbose) {
1857 /* general adapter information */
1858 printf(
1859 "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n",
1860 (vers >> 12) * 10 + ((vers & 0x0f00) >> 8),
1861 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f),
1862 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
1863 vesa_vmodetab, vesa_adp_info->v_modetable);
1864
1865 /* OEM string */
1866 if (vesa_oemstr != NULL)
1867 printf("VESA: %s\n", vesa_oemstr);
1868 }
1869
1870 if (level <= 0)
1871 return (0);
1872
1873 if (vers >= 0x0200 && bootverbose) {
1874 /* vender name, product name, product revision */
1875 printf("VESA: %s %s %s\n",
1876 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown",
1877 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
1878 (vesa_revstr != NULL) ? vesa_revstr : "?");
1879 }
1880
1881 #if VESA_DEBUG > 1
1882 /* mode information */
1883 for (i = 0;
1884 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
1885 && (vesa_vmodetab[i] != 0xffff); ++i) {
1886 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT))
1887 continue;
1888
1889 /* print something for diagnostic purpose */
1890 printf("VESA: mode:0x%03x, flags:0x%04x",
1891 vesa_vmodetab[i], vmode.v_modeattr);
1892 if (vmode.v_modeattr & V_MODEOPTINFO) {
1893 if (vmode.v_modeattr & V_MODEGRAPHICS) {
1894 printf(", G %dx%dx%d %d, ",
1895 vmode.v_width, vmode.v_height,
1896 vmode.v_bpp, vmode.v_planes);
1897 } else {
1898 printf(", T %dx%d, ",
1899 vmode.v_width, vmode.v_height);
1900 }
1901 printf("font:%dx%d, ",
1902 vmode.v_cwidth, vmode.v_cheight);
1903 printf("pages:%d, mem:%d",
1904 vmode.v_ipages + 1, vmode.v_memmodel);
1905 }
1906 if (vmode.v_modeattr & V_MODELFB) {
1907 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
1908 vmode.v_lfb, vmode.v_offscreen,
1909 vmode.v_offscreensize*1024);
1910 }
1911 printf("\n");
1912 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ",
1913 vmode.v_waseg, vmode.v_waattr,
1914 vmode.v_wbseg, vmode.v_wbattr);
1915 printf("size:%dk, gran:%dk\n",
1916 vmode.v_wsize, vmode.v_wgran);
1917 }
1918 #endif /* VESA_DEBUG > 1 */
1919
1920 return (0);
1921 }
1922
1923 /* module loading */
1924
1925 static int
1926 vesa_load(void)
1927 {
1928 int error;
1929
1930 if (vesa_init_done)
1931 return (0);
1932
1933 /* locate a VGA adapter */
1934 vesa_adp = NULL;
1935 error = vesa_configure(0);
1936
1937 if (error == 0)
1938 vesa_bios_info(bootverbose);
1939
1940 /* Don't return ENODEV, the upper layers will whine. */
1941 if (error == ENODEV) {
1942 error = 0;
1943 vesa_adp = NULL;
1944 }
1945
1946 return (error);
1947 }
1948
1949 static int
1950 vesa_unload(void)
1951 {
1952 int error;
1953
1954 /* The driver never initialized, so make it easy to unload. */
1955 if (vesa_adp == NULL)
1956 return (0);
1957
1958 /* if the adapter is currently in a VESA mode, don't unload */
1959 if (VESA_MODE(vesa_adp->va_mode))
1960 return (EBUSY);
1961 /*
1962 * FIXME: if there is at least one vty which is in a VESA mode,
1963 * we shouldn't be unloading! XXX
1964 */
1965
1966 if ((error = vesa_unload_ioctl()) == 0) {
1967 if (vesa_adp != NULL) {
1968 if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) {
1969 vesa_bios_set_dac(6);
1970 vesa_adp->va_flags &= ~V_ADP_DAC8;
1971 }
1972 vesa_adp->va_flags &= ~V_ADP_VESA;
1973 vidsw[vesa_adp->va_index] = prevvidsw;
1974 }
1975 }
1976
1977 vesa_bios_uninit();
1978
1979 return (error);
1980 }
1981
1982 static int
1983 vesa_mod_event(module_t mod, int type, void *data)
1984 {
1985
1986 switch (type) {
1987 case MOD_LOAD:
1988 return (vesa_load());
1989 case MOD_UNLOAD:
1990 return (vesa_unload());
1991 }
1992 return (EOPNOTSUPP);
1993 }
1994
1995 static moduledata_t vesa_mod = {
1996 "vesa",
1997 vesa_mod_event,
1998 NULL,
1999 };
2000
2001 DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
2002 MODULE_DEPEND(vesa, x86bios, 1, 1, 1);
2003
2004 #endif /* VGA_NO_MODE_CHANGE */
Cache object: 0b486974e7b3c9400a91b955b2a364b4
|