Correct typo: mv -> nv.
[dragonfly.git] / sys / dev / video / i386 / vesa / vesa.c
CommitLineData
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1/*-
2 * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith
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 AUTHORS ``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 AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/i386/isa/vesa.c,v 1.32.2.1 2002/08/13 02:42:33 rwatson Exp $
583d9351 27 * $DragonFly: src/sys/dev/video/i386/vesa/vesa.c,v 1.4 2003/09/08 18:36:04 dillon Exp $
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28 */
29
30#include "opt_vga.h"
31
32#ifndef VGA_NO_MODE_CHANGE
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/module.h>
38#include <sys/malloc.h>
39#include <sys/fbio.h>
40
41#include <vm/vm.h>
42#include <vm/vm_extern.h>
43#include <vm/vm_kern.h>
44#include <vm/pmap.h>
45
46#include <machine/md_var.h>
47#include <machine/vm86.h>
48#include <machine/pc/bios.h>
49#include <machine/pc/vesa.h>
50
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51#include <dev/video/fb/fbreg.h>
52#include <dev/video/fb/vgareg.h>
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53
54#ifndef __i386__
1f2de5d4 55#include <bus/isa/isareg.h>
984263bc 56#else
583d9351 57#include <bus/isa/i386/isa.h>
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58#endif
59
60#ifndef VESA_DEBUG
61#define VESA_DEBUG 0
62#endif
63
64/* VESA video adapter state buffer stub */
65struct adp_state {
66 int sig;
67#define V_STATE_SIG 0x61736576
68 u_char regs[1];
69};
70typedef struct adp_state adp_state_t;
71
72/* VESA video adapter */
73static video_adapter_t *vesa_adp = NULL;
74static int vesa_state_buf_size = 0;
75
76/* VESA functions */
77#if 0
78static int vesa_nop(void);
79#endif
80static int vesa_error(void);
81static vi_probe_t vesa_probe;
82static vi_init_t vesa_init;
83static vi_get_info_t vesa_get_info;
84static vi_query_mode_t vesa_query_mode;
85static vi_set_mode_t vesa_set_mode;
86static vi_save_font_t vesa_save_font;
87static vi_load_font_t vesa_load_font;
88static vi_show_font_t vesa_show_font;
89static vi_save_palette_t vesa_save_palette;
90static vi_load_palette_t vesa_load_palette;
91static vi_set_border_t vesa_set_border;
92static vi_save_state_t vesa_save_state;
93static vi_load_state_t vesa_load_state;
94static vi_set_win_org_t vesa_set_origin;
95static vi_read_hw_cursor_t vesa_read_hw_cursor;
96static vi_set_hw_cursor_t vesa_set_hw_cursor;
97static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape;
98static vi_blank_display_t vesa_blank_display;
99static vi_mmap_t vesa_mmap;
100static vi_ioctl_t vesa_ioctl;
101static vi_clear_t vesa_clear;
102static vi_fill_rect_t vesa_fill_rect;
103static vi_bitblt_t vesa_bitblt;
104static vi_diag_t vesa_diag;
105static int vesa_bios_info(int level);
106static struct vm86context vesa_vmcontext;
107
108static video_switch_t vesavidsw = {
109 vesa_probe,
110 vesa_init,
111 vesa_get_info,
112 vesa_query_mode,
113 vesa_set_mode,
114 vesa_save_font,
115 vesa_load_font,
116 vesa_show_font,
117 vesa_save_palette,
118 vesa_load_palette,
119 vesa_set_border,
120 vesa_save_state,
121 vesa_load_state,
122 vesa_set_origin,
123 vesa_read_hw_cursor,
124 vesa_set_hw_cursor,
125 vesa_set_hw_cursor_shape,
126 vesa_blank_display,
127 vesa_mmap,
128 vesa_ioctl,
129 vesa_clear,
130 vesa_fill_rect,
131 vesa_bitblt,
132 vesa_error,
133 vesa_error,
134 vesa_diag,
135};
136
137static video_switch_t *prevvidsw;
138
139/* VESA BIOS video modes */
140#define VESA_MAXMODES 64
141#define EOT (-1)
142#define NA (-2)
143
144#define MODE_TABLE_DELTA 8
145
146static int vesa_vmode_max = 0;
147static video_info_t vesa_vmode_empty = { EOT };
148static video_info_t *vesa_vmode = &vesa_vmode_empty;
149
150static int vesa_init_done = FALSE;
151static int has_vesa_bios = FALSE;
152static struct vesa_info *vesa_adp_info = NULL;
153static u_int16_t *vesa_vmodetab = NULL;
154static char *vesa_oemstr = NULL;
155static char *vesa_venderstr = NULL;
156static char *vesa_prodstr = NULL;
157static char *vesa_revstr = NULL;
158
159/* local macros and functions */
160#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff))
161
162static int int10_set_mode(int mode);
163static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode);
164static int vesa_bios_set_mode(int mode);
165static int vesa_bios_get_dac(void);
166static int vesa_bios_set_dac(int bits);
167static int vesa_bios_save_palette(int start, int colors, u_char *palette,
168 int bits);
169static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g,
170 u_char *b, int bits);
171static int vesa_bios_load_palette(int start, int colors, u_char *palette,
172 int bits);
173#ifdef notyet
174static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g,
175 u_char *b, int bits);
176#endif
177#define STATE_SIZE 0
178#define STATE_SAVE 1
179#define STATE_LOAD 2
180#define STATE_HW (1<<0)
181#define STATE_DATA (1<<1)
182#define STATE_DAC (1<<2)
183#define STATE_REG (1<<3)
184#define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG)
185#define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG)
186static int vesa_bios_state_buf_size(void);
187static int vesa_bios_save_restore(int code, void *p, size_t size);
188static int vesa_bios_get_line_length(void);
189static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines);
190#if 0
191static int vesa_bios_get_start(int *x, int *y);
192#endif
193static int vesa_bios_set_start(int x, int y);
194static int vesa_map_gen_mode_num(int type, int color, int mode);
195static int vesa_translate_flags(u_int16_t vflags);
196static int vesa_translate_mmodel(u_int8_t vmodel);
197static void *vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off,
198 u_char *buf);
199static int vesa_bios_init(void);
200static void vesa_clear_modes(video_info_t *info, int color);
201static vm_offset_t vesa_map_buffer(u_int paddr, size_t size);
202static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size);
203
204#if 0
205static int vesa_get_origin(video_adapter_t *adp, off_t *offset);
206#endif
207
208static void
209dump_buffer(u_char *buf, size_t len)
210{
211 int i;
212
213 for(i = 0; i < len;) {
214 printf("%02x ", buf[i]);
215 if ((++i % 16) == 0)
216 printf("\n");
217 }
218}
219
220/* INT 10 BIOS calls */
221static int
222int10_set_mode(int mode)
223{
224 struct vm86frame vmf;
225
226 bzero(&vmf, sizeof(vmf));
227 vmf.vmf_eax = 0x0000 | mode;
228 vm86_intcall(0x10, &vmf);
229 return 0;
230}
231
232/* VESA BIOS calls */
233static int
234vesa_bios_get_mode(int mode, struct vesa_mode *vmode)
235{
236 struct vm86frame vmf;
237 u_char *buf;
238 int err;
239
240 bzero(&vmf, sizeof(vmf));
241 vmf.vmf_eax = 0x4f01;
242 vmf.vmf_ecx = mode;
243 buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1);
244 vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di);
245
246 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
247 if ((err != 0) || (vmf.vmf_ax != 0x4f))
248 return 1;
249 bcopy(buf, vmode, sizeof(*vmode));
250 return 0;
251}
252
253static int
254vesa_bios_set_mode(int mode)
255{
256 struct vm86frame vmf;
257 int err;
258
259 bzero(&vmf, sizeof(vmf));
260 vmf.vmf_eax = 0x4f02;
261 vmf.vmf_ebx = mode;
262 err = vm86_intcall(0x10, &vmf);
263 return ((err != 0) || (vmf.vmf_ax != 0x4f));
264}
265
266static int
267vesa_bios_get_dac(void)
268{
269 struct vm86frame vmf;
270 int err;
271
272 bzero(&vmf, sizeof(vmf));
273 vmf.vmf_eax = 0x4f08;
274 vmf.vmf_ebx = 1; /* get DAC width */
275 err = vm86_intcall(0x10, &vmf);
276 if ((err != 0) || (vmf.vmf_ax != 0x4f))
277 return 6; /* XXX */
278 return ((vmf.vmf_ebx >> 8) & 0x00ff);
279}
280
281static int
282vesa_bios_set_dac(int bits)
283{
284 struct vm86frame vmf;
285 int err;
286
287 bzero(&vmf, sizeof(vmf));
288 vmf.vmf_eax = 0x4f08;
289 vmf.vmf_ebx = (bits << 8);
290 err = vm86_intcall(0x10, &vmf);
291 if ((err != 0) || (vmf.vmf_ax != 0x4f))
292 return 6; /* XXX */
293 return ((vmf.vmf_ebx >> 8) & 0x00ff);
294}
295
296static int
297vesa_bios_save_palette(int start, int colors, u_char *palette, int bits)
298{
299 struct vm86frame vmf;
300 u_char *p;
301 int err;
302 int i;
303
304 bzero(&vmf, sizeof(vmf));
305 vmf.vmf_eax = 0x4f09;
306 vmf.vmf_ebx = 1; /* get primary palette data */
307 vmf.vmf_ecx = colors;
308 vmf.vmf_edx = start;
309 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1);
310 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
311
312 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
313 if ((err != 0) || (vmf.vmf_ax != 0x4f))
314 return 1;
315
316 bits = 8 - bits;
317 for (i = 0; i < colors; ++i) {
318 palette[i*3] = p[i*4 + 2] << bits;
319 palette[i*3 + 1] = p[i*4 + 1] << bits;
320 palette[i*3 + 2] = p[i*4] << bits;
321 }
322 return 0;
323}
324
325static int
326vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
327 int bits)
328{
329 struct vm86frame vmf;
330 u_char *p;
331 int err;
332 int i;
333
334 bzero(&vmf, sizeof(vmf));
335 vmf.vmf_eax = 0x4f09;
336 vmf.vmf_ebx = 1; /* get primary palette data */
337 vmf.vmf_ecx = colors;
338 vmf.vmf_edx = start;
339 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1);
340 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
341
342 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
343 if ((err != 0) || (vmf.vmf_ax != 0x4f))
344 return 1;
345
346 bits = 8 - bits;
347 for (i = 0; i < colors; ++i) {
348 r[i] = p[i*4 + 2] << bits;
349 g[i] = p[i*4 + 1] << bits;
350 b[i] = p[i*4] << bits;
351 }
352 return 0;
353}
354
355static int
356vesa_bios_load_palette(int start, int colors, u_char *palette, int bits)
357{
358 struct vm86frame vmf;
359 u_char *p;
360 int err;
361 int i;
362
363 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1);
364 bits = 8 - bits;
365 for (i = 0; i < colors; ++i) {
366 p[i*4] = palette[i*3 + 2] >> bits;
367 p[i*4 + 1] = palette[i*3 + 1] >> bits;
368 p[i*4 + 2] = palette[i*3] >> bits;
369 p[i*4 + 3] = 0;
370 }
371
372 bzero(&vmf, sizeof(vmf));
373 vmf.vmf_eax = 0x4f09;
374 vmf.vmf_ebx = 0; /* set primary palette data */
375 vmf.vmf_ecx = colors;
376 vmf.vmf_edx = start;
377 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
378
379 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
380 return ((err != 0) || (vmf.vmf_ax != 0x4f));
381}
382
383#ifdef notyet
384static int
385vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b,
386 int bits)
387{
388 struct vm86frame vmf;
389 u_char *p;
390 int err;
391 int i;
392
393 p = (u_char *)vm86_getpage(&vesa_vmcontext, 1);
394 bits = 8 - bits;
395 for (i = 0; i < colors; ++i) {
396 p[i*4] = b[i] >> bits;
397 p[i*4 + 1] = g[i] >> bits;
398 p[i*4 + 2] = r[i] >> bits;
399 p[i*4 + 3] = 0;
400 }
401
402 bzero(&vmf, sizeof(vmf));
403 vmf.vmf_eax = 0x4f09;
404 vmf.vmf_ebx = 0; /* set primary palette data */
405 vmf.vmf_ecx = colors;
406 vmf.vmf_edx = start;
407 vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di);
408
409 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
410 return ((err != 0) || (vmf.vmf_ax != 0x4f));
411}
412#endif
413
414static int
415vesa_bios_state_buf_size(void)
416{
417 struct vm86frame vmf;
418 int err;
419
420 bzero(&vmf, sizeof(vmf));
421 vmf.vmf_eax = 0x4f04;
422 vmf.vmf_ecx = STATE_MOST;
423 vmf.vmf_edx = STATE_SIZE;
424 err = vm86_intcall(0x10, &vmf);
425 if ((err != 0) || (vmf.vmf_ax != 0x4f))
426 return 0;
427 return vmf.vmf_bx*64;
428}
429
430static int
431vesa_bios_save_restore(int code, void *p, size_t size)
432{
433 struct vm86frame vmf;
434 u_char *buf;
435 int err;
436
437 bzero(&vmf, sizeof(vmf));
438 vmf.vmf_eax = 0x4f04;
439 vmf.vmf_ecx = STATE_MOST;
440 vmf.vmf_edx = code; /* STATE_SAVE/STATE_LOAD */
441 buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1);
442 vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di);
443 bcopy(p, buf, size);
444
445 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
446 return ((err != 0) || (vmf.vmf_ax != 0x4f));
447}
448
449static int
450vesa_bios_get_line_length(void)
451{
452 struct vm86frame vmf;
453 int err;
454
455 bzero(&vmf, sizeof(vmf));
456 vmf.vmf_eax = 0x4f06;
457 vmf.vmf_ebx = 1; /* get scan line length */
458 err = vm86_intcall(0x10, &vmf);
459 if ((err != 0) || (vmf.vmf_ax != 0x4f))
460 return -1;
461 return vmf.vmf_bx; /* line length in bytes */
462}
463
464static int
465vesa_bios_set_line_length(int pixel, int *bytes, int *lines)
466{
467 struct vm86frame vmf;
468 int err;
469
470 bzero(&vmf, sizeof(vmf));
471 vmf.vmf_eax = 0x4f06;
472 vmf.vmf_ebx = 0; /* set scan line length in pixel */
473 vmf.vmf_ecx = pixel;
474 err = vm86_intcall(0x10, &vmf);
475#if VESA_DEBUG > 1
476 printf("bx:%d, cx:%d, dx:%d\n", vmf.vmf_bx, vmf.vmf_cx, vmf.vmf_dx);
477#endif
478 if ((err != 0) || (vmf.vmf_ax != 0x4f))
479 return 1;
480 if (bytes)
481 *bytes = vmf.vmf_bx;
482 if (lines)
483 *lines = vmf.vmf_dx;
484 return 0;
485}
486
487#if 0
488static int
489vesa_bios_get_start(int *x, int *y)
490{
491 struct vm86frame vmf;
492 int err;
493
494 bzero(&vmf, sizeof(vmf));
495 vmf.vmf_eax = 0x4f07;
496 vmf.vmf_ebx = 1; /* get display start */
497 err = vm86_intcall(0x10, &vmf);
498 if ((err != 0) || (vmf.vmf_ax != 0x4f))
499 return 1;
500 *x = vmf.vmf_cx;
501 *y = vmf.vmf_dx;
502 return 0;
503}
504#endif
505
506static int
507vesa_bios_set_start(int x, int y)
508{
509 struct vm86frame vmf;
510 int err;
511
512 bzero(&vmf, sizeof(vmf));
513 vmf.vmf_eax = 0x4f07;
514 vmf.vmf_ebx = 0x80; /* set display start */
515 vmf.vmf_edx = y;
516 vmf.vmf_ecx = x;
517 err = vm86_intcall(0x10, &vmf);
518 return ((err != 0) || (vmf.vmf_ax != 0x4f));
519}
520
521/* map a generic video mode to a known mode */
522static int
523vesa_map_gen_mode_num(int type, int color, int mode)
524{
525 static struct {
526 int from;
527 int to;
528 } mode_map[] = {
529 { M_TEXT_132x25, M_VESA_C132x25 },
530 { M_TEXT_132x43, M_VESA_C132x43 },
531 { M_TEXT_132x50, M_VESA_C132x50 },
532 { M_TEXT_132x60, M_VESA_C132x60 },
533 };
534 int i;
535
536 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) {
537 if (mode_map[i].from == mode)
538 return mode_map[i].to;
539 }
540 return mode;
541}
542
543static int
544vesa_translate_flags(u_int16_t vflags)
545{
546 static struct {
547 u_int16_t mask;
548 int set;
549 int reset;
550 } ftable[] = {
551 { V_MODECOLOR, V_INFO_COLOR, 0 },
552 { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 },
553 { V_MODELFB, V_INFO_LINEAR, 0 },
554 };
555 int flags;
556 int i;
557
558 for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) {
559 flags |= (vflags & ftable[i].mask) ?
560 ftable[i].set : ftable[i].reset;
561 }
562 return flags;
563}
564
565static int
566vesa_translate_mmodel(u_int8_t vmodel)
567{
568 static struct {
569 u_int8_t vmodel;
570 int mmodel;
571 } mtable[] = {
572 { V_MMTEXT, V_INFO_MM_TEXT },
573 { V_MMCGA, V_INFO_MM_CGA },
574 { V_MMHGC, V_INFO_MM_HGC },
575 { V_MMEGA, V_INFO_MM_PLANAR },
576 { V_MMPACKED, V_INFO_MM_PACKED },
577 { V_MMDIRCOLOR, V_INFO_MM_DIRECT },
578 };
579 int i;
580
581 for (i = 0; mtable[i].mmodel >= 0; ++i) {
582 if (mtable[i].vmodel == vmodel)
583 return mtable[i].mmodel;
584 }
585 return V_INFO_MM_OTHER;
586}
587
588static void
589*vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf)
590{
591 if (p == 0)
592 return NULL;
593 if (((p >> 16) == seg) && ((p & 0xffff) >= off))
594 return (void *)(buf + ((p & 0xffff) - off));
595 else {
596 p = BIOS_SADDRTOLADDR(p);
597 return (void *)BIOS_PADDRTOVADDR(p);
598 }
599}
600
601static int
602vesa_bios_init(void)
603{
604 static u_char buf[512];
605 struct vm86frame vmf;
606 struct vesa_mode vmode;
607 video_info_t *p;
608 u_char *vmbuf;
609 int modes;
610 int err;
611 int i;
612
613 if (vesa_init_done)
614 return 0;
615
616 has_vesa_bios = FALSE;
617 vesa_adp_info = NULL;
618 vesa_vmode_max = 0;
619 vesa_vmode[0].vi_mode = EOT;
620
621 vmbuf = (u_char *)vm86_addpage(&vesa_vmcontext, 1, 0);
622 bzero(&vmf, sizeof(vmf)); /* paranoia */
623 bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */
624 vmf.vmf_eax = 0x4f00;
625 vm86_getptr(&vesa_vmcontext, (vm_offset_t)vmbuf, &vmf.vmf_es, &vmf.vmf_di);
626
627 err = vm86_datacall(0x10, &vmf, &vesa_vmcontext);
628 if ((err != 0) || (vmf.vmf_ax != 0x4f) || bcmp("VESA", vmbuf, 4))
629 return 1;
630 bcopy(vmbuf, buf, sizeof(buf));
631 vesa_adp_info = (struct vesa_info *)buf;
632 if (bootverbose) {
633 printf("VESA: information block\n");
634 dump_buffer(buf, 64);
635 }
636 if (vesa_adp_info->v_flags & V_NONVGA)
637 return 1;
638 if (vesa_adp_info->v_version < 0x0102) {
639 printf("VESA: VBE version %d.%d is not supported; "
640 "version 1.2 or later is required.\n",
641 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10
642 + ((vesa_adp_info->v_version & 0x0f00) >> 8),
643 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10
644 + (vesa_adp_info->v_version & 0x000f));
645 return 1;
646 }
647
648 /* fix string ptrs */
649 vesa_oemstr = (char *)vesa_fix_ptr(vesa_adp_info->v_oemstr,
650 vmf.vmf_es, vmf.vmf_di, buf);
651 if (vesa_adp_info->v_version >= 0x0200) {
652 vesa_venderstr =
653 (char *)vesa_fix_ptr(vesa_adp_info->v_venderstr,
654 vmf.vmf_es, vmf.vmf_di, buf);
655 vesa_prodstr =
656 (char *)vesa_fix_ptr(vesa_adp_info->v_prodstr,
657 vmf.vmf_es, vmf.vmf_di, buf);
658 vesa_revstr =
659 (char *)vesa_fix_ptr(vesa_adp_info->v_revstr,
660 vmf.vmf_es, vmf.vmf_di, buf);
661 }
662
663 /* obtain video mode information */
664 vesa_vmodetab = (u_int16_t *)vesa_fix_ptr(vesa_adp_info->v_modetable,
665 vmf.vmf_es, vmf.vmf_di, buf);
666 if (vesa_vmodetab == NULL)
667 return 1;
668 for (i = 0, modes = 0;
669 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
670 && (vesa_vmodetab[i] != 0xffff); ++i) {
671 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode))
672 continue;
673
674 /* reject unsupported modes */
675#if 0
676 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO
677 | V_MODENONVGA))
678 != (V_MODESUPP | V_MODEOPTINFO))
679 continue;
680#else
681 if ((vmode.v_modeattr & (V_MODEOPTINFO | V_MODENONVGA))
682 != (V_MODEOPTINFO))
683 continue;
684#endif
685
686 /* expand the array if necessary */
687 if (modes >= vesa_vmode_max) {
688 vesa_vmode_max += MODE_TABLE_DELTA;
689 p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1),
690 M_DEVBUF, M_WAITOK);
691#if VESA_DEBUG > 1
692 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n",
693 modes, vesa_vmode_max);
694#endif
695 if (modes > 0) {
696 bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes);
697 free(vesa_vmode, M_DEVBUF);
698 }
699 vesa_vmode = p;
700 }
701
702 /* copy some fields */
703 bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes]));
704 vesa_vmode[modes].vi_mode = vesa_vmodetab[i];
705 vesa_vmode[modes].vi_width = vmode.v_width;
706 vesa_vmode[modes].vi_height = vmode.v_height;
707 vesa_vmode[modes].vi_depth = vmode.v_bpp;
708 vesa_vmode[modes].vi_planes = vmode.v_planes;
709 vesa_vmode[modes].vi_cwidth = vmode.v_cwidth;
710 vesa_vmode[modes].vi_cheight = vmode.v_cheight;
711 vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4;
712 /* XXX window B */
713 vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024;
714 vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024;
715 if (vmode.v_modeattr & V_MODELFB)
716 vesa_vmode[modes].vi_buffer = vmode.v_lfb;
717 else
718 vesa_vmode[modes].vi_buffer = 0;
719 /* XXX */
720 vesa_vmode[modes].vi_buffer_size
721 = vesa_adp_info->v_memsize*64*1024;
722#if 0
723 if (vmode.v_offscreen > vmode.v_lfb)
724 vesa_vmode[modes].vi_buffer_size
725 = vmode.v_offscreen + vmode.v_offscreensize*1024
726 - vmode.v_lfb;
727 else
728 vesa_vmode[modes].vi_buffer_size
729 = vmode.v_offscreen + vmode.v_offscreensize*1024
730#endif
731 vesa_vmode[modes].vi_mem_model
732 = vesa_translate_mmodel(vmode.v_memmodel);
733 vesa_vmode[modes].vi_pixel_fields[0] = 0;
734 vesa_vmode[modes].vi_pixel_fields[1] = 0;
735 vesa_vmode[modes].vi_pixel_fields[2] = 0;
736 vesa_vmode[modes].vi_pixel_fields[3] = 0;
737 vesa_vmode[modes].vi_pixel_fsizes[0] = 0;
738 vesa_vmode[modes].vi_pixel_fsizes[1] = 0;
739 vesa_vmode[modes].vi_pixel_fsizes[2] = 0;
740 vesa_vmode[modes].vi_pixel_fsizes[3] = 0;
741 if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) {
742 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8;
743 } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) {
744 vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8;
745 vesa_vmode[modes].vi_pixel_fields[0]
746 = vmode.v_redfieldpos;
747 vesa_vmode[modes].vi_pixel_fields[1]
748 = vmode.v_greenfieldpos;
749 vesa_vmode[modes].vi_pixel_fields[2]
750 = vmode.v_bluefieldpos;
751 vesa_vmode[modes].vi_pixel_fields[3]
752 = vmode.v_resfieldpos;
753 vesa_vmode[modes].vi_pixel_fsizes[0]
754 = vmode.v_redmasksize;
755 vesa_vmode[modes].vi_pixel_fsizes[1]
756 = vmode.v_greenmasksize;
757 vesa_vmode[modes].vi_pixel_fsizes[2]
758 = vmode.v_bluemasksize;
759 vesa_vmode[modes].vi_pixel_fsizes[3]
760 = vmode.v_resmasksize;
761 } else {
762 vesa_vmode[modes].vi_pixel_size = 0;
763 }
764
765 vesa_vmode[modes].vi_flags
766 = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA;
767 ++modes;
768 }
769 vesa_vmode[modes].vi_mode = EOT;
770 if (bootverbose)
771 printf("VESA: %d mode(s) found\n", modes);
772
773 has_vesa_bios = (modes > 0);
774 return (has_vesa_bios ? 0 : 1);
775}
776
777static void
778vesa_clear_modes(video_info_t *info, int color)
779{
780 while (info->vi_mode != EOT) {
781 if ((info->vi_flags & V_INFO_COLOR) != color)
782 info->vi_mode = NA;
783 ++info;
784 }
785}
786
787static vm_offset_t
788vesa_map_buffer(u_int paddr, size_t size)
789{
790 vm_offset_t vaddr;
791 u_int off;
792
793 off = paddr - trunc_page(paddr);
794 vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off);
795#if VESA_DEBUG > 1
796 printf("vesa_map_buffer: paddr:%x vaddr:%x size:%x off:%x\n",
797 paddr, vaddr, size, off);
798#endif
799 return (vaddr + off);
800}
801
802static void
803vesa_unmap_buffer(vm_offset_t vaddr, size_t size)
804{
805#if VESA_DEBUG > 1
806 printf("vesa_unmap_buffer: vaddr:%x size:%x\n", vaddr, size);
807#endif
808 kmem_free(kernel_map, vaddr, size);
809}
810
811/* entry points */
812
813static int
814vesa_configure(int flags)
815{
816 video_adapter_t *adp;
817 int adapters;
818 int error;
819 int i;
820
821 if (vesa_init_done)
822 return 0;
823 if (flags & VIO_PROBE_ONLY)
824 return 0; /* XXX */
825
826 /*
827 * If the VESA module has already been loaded, abort loading
828 * the module this time.
829 */
830 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) {
831 if (adp->va_flags & V_ADP_VESA)
832 return ENXIO;
833 if (adp->va_type == KD_VGA)
834 break;
835 }
836 /*
837 * The VGA adapter is not found. This is because either
838 * 1) the VGA driver has not been initialized, or 2) the VGA card
839 * is not present. If 1) is the case, we shall defer
840 * initialization for now and try again later.
841 */
842 if (adp == NULL) {
843 vga_sub_configure = vesa_configure;
844 return ENODEV;
845 }
846
847 /* count number of registered adapters */
848 for (++i; vid_get_adapter(i) != NULL; ++i)
849 ;
850 adapters = i;
851
852 /* call VESA BIOS */
853 vesa_adp = adp;
854 if (vesa_bios_init()) {
855 vesa_adp = NULL;
856 return ENXIO;
857 }
858 vesa_adp->va_flags |= V_ADP_VESA;
859
860 /* remove conflicting modes if we have more than one adapter */
861 if (adapters > 1) {
862 vesa_clear_modes(vesa_vmode,
863 (vesa_adp->va_flags & V_ADP_COLOR) ?
864 V_INFO_COLOR : 0);
865 }
866
867 if ((error = vesa_load_ioctl()) == 0) {
868 prevvidsw = vidsw[vesa_adp->va_index];
869 vidsw[vesa_adp->va_index] = &vesavidsw;
870 vesa_init_done = TRUE;
871 } else {
872 vesa_adp = NULL;
873 return error;
874 }
875
876 return 0;
877}
878
879#if 0
880static int
881vesa_nop(void)
882{
883 return 0;
884}
885#endif
886
887static int
888vesa_error(void)
889{
890 return 1;
891}
892
893static int
894vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags)
895{
896 return (*prevvidsw->probe)(unit, adpp, arg, flags);
897}
898
899static int
900vesa_init(int unit, video_adapter_t *adp, int flags)
901{
902 return (*prevvidsw->init)(unit, adp, flags);
903}
904
905static int
906vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info)
907{
908 int i;
909
910 if ((*prevvidsw->get_info)(adp, mode, info) == 0)
911 return 0;
912
913 if (adp != vesa_adp)
914 return 1;
915
916 mode = vesa_map_gen_mode_num(vesa_adp->va_type,
917 vesa_adp->va_flags & V_ADP_COLOR, mode);
918 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
919 if (vesa_vmode[i].vi_mode == NA)
920 continue;
921 if (vesa_vmode[i].vi_mode == mode) {
922 *info = vesa_vmode[i];
923 return 0;
924 }
925 }
926 return 1;
927}
928
929static int
930vesa_query_mode(video_adapter_t *adp, video_info_t *info)
931{
932 int i;
933
934 if ((*prevvidsw->query_mode)(adp, info) == 0)
935 return 0;
936 if (adp != vesa_adp)
937 return ENODEV;
938
939 for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) {
940 if ((info->vi_width != 0)
941 && (info->vi_width != vesa_vmode[i].vi_width))
942 continue;
943 if ((info->vi_height != 0)
944 && (info->vi_height != vesa_vmode[i].vi_height))
945 continue;
946 if ((info->vi_cwidth != 0)
947 && (info->vi_cwidth != vesa_vmode[i].vi_cwidth))
948 continue;
949 if ((info->vi_cheight != 0)
950 && (info->vi_cheight != vesa_vmode[i].vi_cheight))
951 continue;
952 if ((info->vi_depth != 0)
953 && (info->vi_depth != vesa_vmode[i].vi_depth))
954 continue;
955 if ((info->vi_planes != 0)
956 && (info->vi_planes != vesa_vmode[i].vi_planes))
957 continue;
958 /* pixel format, memory model */
959 if ((info->vi_flags != 0)
960 && (info->vi_flags != vesa_vmode[i].vi_flags))
961 continue;
962 *info = vesa_vmode[i];
963 return 0;
964 }
965 return ENODEV;
966}
967
968static int
969vesa_set_mode(video_adapter_t *adp, int mode)
970{
971 video_info_t info;
972 int len;
973
974 if (adp != vesa_adp)
975 return (*prevvidsw->set_mode)(adp, mode);
976
977 mode = vesa_map_gen_mode_num(adp->va_type,
978 adp->va_flags & V_ADP_COLOR, mode);
979#if VESA_DEBUG > 0
980 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n",
981 adp->va_mode, adp->va_mode, mode, mode);
982#endif
983 /*
984 * If the current mode is a VESA mode and the new mode is not,
985 * restore the state of the adapter first by setting one of the
986 * standard VGA mode, so that non-standard, extended SVGA registers
987 * are set to the state compatible with the standard VGA modes.
988 * Otherwise (*prevvidsw->set_mode)() may not be able to set up
989 * the new mode correctly.
990 */
991 if (VESA_MODE(adp->va_mode)) {
992 if ((*prevvidsw->get_info)(adp, mode, &info) == 0) {
993 int10_set_mode(adp->va_initial_bios_mode);
994 if (adp->va_info.vi_flags & V_INFO_LINEAR)
995 vesa_unmap_buffer(adp->va_buffer,
996 vesa_adp_info->v_memsize*64*1024);
997 /*
998 * Once (*prevvidsw->get_info)() succeeded,
999 * (*prevvidsw->set_mode)() below won't fail...
1000 */
1001 }
1002 }
1003
1004 /* we may not need to handle this mode after all... */
1005 if ((*prevvidsw->set_mode)(adp, mode) == 0)
1006 return 0;
1007
1008 /* is the new mode supported? */
1009 if (vesa_get_info(adp, mode, &info))
1010 return 1;
1011 /* assert(VESA_MODE(mode)); */
1012
1013#if VESA_DEBUG > 0
1014 printf("VESA: about to set a VESA mode...\n");
1015#endif
1016 /* don't use the linear frame buffer for text modes. XXX */
1017 if (!(info.vi_flags & V_INFO_GRAPHICS))
1018 info.vi_flags &= ~V_INFO_LINEAR;
1019
1020 if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0)))
1021 return 1;
1022
1023 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1024 vesa_unmap_buffer(adp->va_buffer,
1025 vesa_adp_info->v_memsize*64*1024);
1026
1027#if VESA_DEBUG > 0
1028 printf("VESA: mode set!\n");
1029#endif
1030 vesa_adp->va_mode = mode;
1031 vesa_adp->va_flags &= ~V_ADP_COLOR;
1032 vesa_adp->va_flags |=
1033 (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0;
1034 vesa_adp->va_crtc_addr =
1035 (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC;
1036 if (info.vi_flags & V_INFO_LINEAR) {
1037#if VESA_DEBUG > 1
1038 printf("VESA: setting up LFB\n");
1039#endif
1040 vesa_adp->va_buffer =
1041 vesa_map_buffer(info.vi_buffer,
1042 vesa_adp_info->v_memsize*64*1024);
1043 vesa_adp->va_buffer_size = info.vi_buffer_size;
1044 vesa_adp->va_window = vesa_adp->va_buffer;
1045 vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes;
1046 vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes;
1047 } else {
1048 vesa_adp->va_buffer = 0;
1049 vesa_adp->va_buffer_size = info.vi_buffer_size;
1050 vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window);
1051 vesa_adp->va_window_size = info.vi_window_size;
1052 vesa_adp->va_window_gran = info.vi_window_gran;
1053 }
1054 vesa_adp->va_window_orig = 0;
1055 len = vesa_bios_get_line_length();
1056 if (len > 0) {
1057 vesa_adp->va_line_width = len;
1058 } else if (info.vi_flags & V_INFO_GRAPHICS) {
1059 switch (info.vi_depth/info.vi_planes) {
1060 case 1:
1061 vesa_adp->va_line_width = info.vi_width/8;
1062 break;
1063 case 2:
1064 vesa_adp->va_line_width = info.vi_width/4;
1065 break;
1066 case 4:
1067 vesa_adp->va_line_width = info.vi_width/2;
1068 break;
1069 case 8:
1070 default: /* shouldn't happen */
1071 vesa_adp->va_line_width = info.vi_width;
1072 break;
1073 }
1074 } else {
1075 vesa_adp->va_line_width = info.vi_width;
1076 }
1077 vesa_adp->va_disp_start.x = 0;
1078 vesa_adp->va_disp_start.y = 0;
1079#if VESA_DEBUG > 0
1080 printf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n",
1081 info.vi_width, len, vesa_adp->va_line_width);
1082#endif
1083 bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info));
1084
1085 /* move hardware cursor out of the way */
1086 (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1);
1087
1088 return 0;
1089}
1090
1091static int
1092vesa_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1093 int ch, int count)
1094{
1095 return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count);
1096}
1097
1098static int
1099vesa_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data,
1100 int ch, int count)
1101{
1102 return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count);
1103}
1104
1105static int
1106vesa_show_font(video_adapter_t *adp, int page)
1107{
1108 return (*prevvidsw->show_font)(adp, page);
1109}
1110
1111static int
1112vesa_save_palette(video_adapter_t *adp, u_char *palette)
1113{
1114 int bits;
1115 int error;
1116
1117 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8)
1118 && VESA_MODE(adp->va_mode)) {
1119 bits = vesa_bios_get_dac();
1120 error = vesa_bios_save_palette(0, 256, palette, bits);
1121 if (error == 0)
1122 return 0;
1123 if (bits != 6)
1124 return error;
1125 }
1126
1127 return (*prevvidsw->save_palette)(adp, palette);
1128}
1129
1130static int
1131vesa_load_palette(video_adapter_t *adp, u_char *palette)
1132{
1133#if notyet
1134 int bits;
1135 int error;
1136
1137 if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8)
1138 && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) {
1139 error = vesa_bios_load_palette(0, 256, palette, bits);
1140 if (error == 0)
1141 return 0;
1142 if (vesa_bios_set_dac(6) != 6)
1143 return 1;
1144 }
1145#endif /* notyet */
1146
1147 return (*prevvidsw->load_palette)(adp, palette);
1148}
1149
1150static int
1151vesa_set_border(video_adapter_t *adp, int color)
1152{
1153 return (*prevvidsw->set_border)(adp, color);
1154}
1155
1156static int
1157vesa_save_state(video_adapter_t *adp, void *p, size_t size)
1158{
1159 if (adp != vesa_adp)
1160 return (*prevvidsw->save_state)(adp, p, size);
1161
1162 if (vesa_state_buf_size == 0)
1163 vesa_state_buf_size = vesa_bios_state_buf_size();
1164 if (size == 0)
1165 return (sizeof(int) + vesa_state_buf_size);
1166 else if (size < (sizeof(int) + vesa_state_buf_size))
1167 return 1;
1168
1169 ((adp_state_t *)p)->sig = V_STATE_SIG;
1170 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size);
1171 return vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs,
1172 vesa_state_buf_size);
1173}
1174
1175static int
1176vesa_load_state(video_adapter_t *adp, void *p)
1177{
1178 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG))
1179 return (*prevvidsw->load_state)(adp, p);
1180
1181 return vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs,
1182 vesa_state_buf_size);
1183}
1184
1185#if 0
1186static int
1187vesa_get_origin(video_adapter_t *adp, off_t *offset)
1188{
1189 struct vm86frame vmf;
1190 int err;
1191
1192 bzero(&vmf, sizeof(vmf));
1193 vmf.vmf_eax = 0x4f05;
1194 vmf.vmf_ebx = 0x10; /* WINDOW_A, XXX */
1195 err = vm86_intcall(0x10, &vmf);
1196 if ((err != 0) || (vmf.vmf_ax != 0x4f))
1197 return 1;
1198 *offset = vmf.vmf_dx*adp->va_window_gran;
1199 return 0;
1200}
1201#endif
1202
1203static int
1204vesa_set_origin(video_adapter_t *adp, off_t offset)
1205{
1206 struct vm86frame vmf;
1207 int err;
1208
1209 /*
1210 * This function should return as quickly as possible to
1211 * maintain good performance of the system. For this reason,
1212 * error checking is kept minimal and let the VESA BIOS to
1213 * detect error.
1214 */
1215 if (adp != vesa_adp)
1216 return (*prevvidsw->set_win_org)(adp, offset);
1217
1218 /* if this is a linear frame buffer, do nothing */
1219 if (adp->va_info.vi_flags & V_INFO_LINEAR)
1220 return 0;
1221 /* XXX */
1222 if (adp->va_window_gran == 0)
1223 return 1;
1224
1225 bzero(&vmf, sizeof(vmf));
1226 vmf.vmf_eax = 0x4f05;
1227 vmf.vmf_ebx = 0; /* WINDOW_A, XXX */
1228 vmf.vmf_edx = offset/adp->va_window_gran;
1229 err = vm86_intcall(0x10, &vmf);
1230 if ((err != 0) || (vmf.vmf_ax != 0x4f))
1231 return 1;
1232 bzero(&vmf, sizeof(vmf));
1233 vmf.vmf_eax = 0x4f05;
1234 vmf.vmf_ebx = 1; /* WINDOW_B, XXX */
1235 vmf.vmf_edx = offset/adp->va_window_gran;
1236 err = vm86_intcall(0x10, &vmf);
1237 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran;
1238 return 0; /* XXX */
1239}
1240
1241static int
1242vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
1243{
1244 return (*prevvidsw->read_hw_cursor)(adp, col, row);
1245}
1246
1247static int
1248vesa_set_hw_cursor(video_adapter_t *adp, int col, int row)
1249{
1250 return (*prevvidsw->set_hw_cursor)(adp, col, row);
1251}
1252
1253static int
1254vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
1255 int celsize, int blink)
1256{
1257 return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize,
1258 blink);
1259}
1260
1261static int
1262vesa_blank_display(video_adapter_t *adp, int mode)
1263{
1264 /* XXX: use VESA DPMS */
1265 return (*prevvidsw->blank_display)(adp, mode);
1266}
1267
1268static int
1269vesa_mmap(video_adapter_t *adp, vm_offset_t offset, int prot)
1270{
1271#if VESA_DEBUG > 0
1272 printf("vesa_mmap(): window:0x%x, buffer:0x%x, offset:0x%x\n",
1273 adp->va_info.vi_window, adp->va_info.vi_buffer, offset);
1274#endif
1275
1276 if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) {
1277 /* va_window_size == va_buffer_size/vi_planes */
1278 /* XXX: is this correct? */
1279 if (offset > adp->va_window_size - PAGE_SIZE)
1280 return -1;
1281#ifdef __i386__
1282 return i386_btop(adp->va_info.vi_buffer + offset);
1283#endif
1284#ifdef __alpha__ /* XXX */
1285 return alpha_btop(adp->va_info.vi_buffer + offset);
1286#endif
1287 } else {
1288 return (*prevvidsw->mmap)(adp, offset, prot);
1289 }
1290}
1291
1292static int
1293vesa_clear(video_adapter_t *adp)
1294{
1295 return (*prevvidsw->clear)(adp);
1296}
1297
1298static int
1299vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
1300{
1301 return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy);
1302}
1303
1304static int
1305vesa_bitblt(video_adapter_t *adp,...)
1306{
1307 /* FIXME */
1308 return 1;
1309}
1310
1311static int
1312get_palette(video_adapter_t *adp, int base, int count,
1313 u_char *red, u_char *green, u_char *blue, u_char *trans)
1314{
1315 u_char *r;
1316 u_char *g;
1317 u_char *b;
1318 int bits;
1319 int error;
1320
1321 if ((base < 0) || (base >= 256) || (count < 0) || (count > 256))
1322 return 1;
1323 if (base + count > 256)
1324 return 1;
1325 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode))
1326 return 1;
1327
1328 bits = vesa_bios_get_dac();
1329 if (bits <= 6)
1330 return 1;
1331
1332 r = malloc(count*3, M_DEVBUF, M_WAITOK);
1333 g = r + count;
1334 b = g + count;
1335 error = vesa_bios_save_palette2(base, count, r, g, b, bits);
1336 if (error == 0) {
1337 copyout(r, red, count);
1338 copyout(g, green, count);
1339 copyout(b, blue, count);
1340 if (trans != NULL) {
1341 bzero(r, count);
1342 copyout(r, trans, count);
1343 }
1344 }
1345 free(r, M_DEVBUF);
1346
1347 /* if error && bits != 6 at this point, we are in in trouble... XXX */
1348 return error;
1349}
1350
1351static int
1352set_palette(video_adapter_t *adp, int base, int count,
1353 u_char *red, u_char *green, u_char *blue, u_char *trans)
1354{
1355 return 1;
1356#if notyet
1357 u_char *r;
1358 u_char *g;
1359 u_char *b;
1360 int bits;
1361 int error;
1362
1363 if ((base < 0) || (base >= 256) || (base + count > 256))
1364 return 1;
1365 if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)
1366 || ((bits = vesa_bios_set_dac(8)) <= 6))
1367 return 1;
1368
1369 r = malloc(count*3, M_DEVBUF, M_WAITOK);
1370 g = r + count;
1371 b = g + count;
1372 copyin(red, r, count);
1373 copyin(green, g, count);
1374 copyin(blue, b, count);
1375
1376 error = vesa_bios_load_palette2(base, count, r, g, b, bits);
1377 free(r, M_DEVBUF);
1378 if (error == 0)
1379 return 0;
1380
1381 /* if the following call fails, we are in trouble... XXX */
1382 vesa_bios_set_dac(6);
1383 return 1;
1384#endif /* notyet */
1385}
1386
1387static int
1388vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg)
1389{
1390 int bytes;
1391
1392 if (adp != vesa_adp)
1393 return (*prevvidsw->ioctl)(adp, cmd, arg);
1394
1395 switch (cmd) {
1396 case FBIO_SETWINORG: /* set frame buffer window origin */
1397 if (!VESA_MODE(adp->va_mode))
1398 return (*prevvidsw->ioctl)(adp, cmd, arg);
1399 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0);
1400
1401 case FBIO_SETDISPSTART: /* set display start address */
1402 if (!VESA_MODE(adp->va_mode))
1403 return (*prevvidsw->ioctl)(adp, cmd, arg);
1404 if (vesa_bios_set_start(((video_display_start_t *)arg)->x,
1405 ((video_display_start_t *)arg)->y))
1406 return ENODEV;
1407 adp->va_disp_start.x = ((video_display_start_t *)arg)->x;
1408 adp->va_disp_start.y = ((video_display_start_t *)arg)->y;
1409 return 0;
1410
1411 case FBIO_SETLINEWIDTH: /* set line length in pixel */
1412 if (!VESA_MODE(adp->va_mode))
1413 return (*prevvidsw->ioctl)(adp, cmd, arg);
1414 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL))
1415 return ENODEV;
1416 adp->va_line_width = bytes;
1417#if VESA_DEBUG > 1
1418 printf("new line width:%d\n", adp->va_line_width);
1419#endif
1420 return 0;
1421
1422 case FBIO_GETPALETTE: /* get color palette */
1423 if (get_palette(adp, ((video_color_palette_t *)arg)->index,
1424 ((video_color_palette_t *)arg)->count,
1425 ((video_color_palette_t *)arg)->red,
1426 ((video_color_palette_t *)arg)->green,
1427 ((video_color_palette_t *)arg)->blue,
1428 ((video_color_palette_t *)arg)->transparent))
1429 return (*prevvidsw->ioctl)(adp, cmd, arg);
1430 return 0;
1431
1432
1433 case FBIO_SETPALETTE: /* set color palette */
1434 if (set_palette(adp, ((video_color_palette_t *)arg)->index,
1435 ((video_color_palette_t *)arg)->count,
1436 ((video_color_palette_t *)arg)->red,
1437 ((video_color_palette_t *)arg)->green,
1438 ((video_color_palette_t *)arg)->blue,
1439 ((video_color_palette_t *)arg)->transparent))
1440 return (*prevvidsw->ioctl)(adp, cmd, arg);
1441 return 0;
1442
1443 case FBIOGETCMAP: /* get color palette */
1444 if (get_palette(adp, ((struct fbcmap *)arg)->index,
1445 ((struct fbcmap *)arg)->count,
1446 ((struct fbcmap *)arg)->red,
1447 ((struct fbcmap *)arg)->green,
1448 ((struct fbcmap *)arg)->blue, NULL))
1449 return (*prevvidsw->ioctl)(adp, cmd, arg);
1450 return 0;
1451
1452 case FBIOPUTCMAP: /* set color palette */
1453 if (set_palette(adp, ((struct fbcmap *)arg)->index,
1454 ((struct fbcmap *)arg)->count,
1455 ((struct fbcmap *)arg)->red,
1456 ((struct fbcmap *)arg)->green,
1457 ((struct fbcmap *)arg)->blue, NULL))
1458 return (*prevvidsw->ioctl)(adp, cmd, arg);
1459 return 0;
1460
1461 default:
1462 return (*prevvidsw->ioctl)(adp, cmd, arg);
1463 }
1464}
1465
1466static int
1467vesa_diag(video_adapter_t *adp, int level)
1468{
1469 int error;
1470
1471 /* call the previous handler first */
1472 error = (*prevvidsw->diag)(adp, level);
1473 if (error)
1474 return error;
1475
1476 if (adp != vesa_adp)
1477 return 1;
1478
1479 if (level <= 0)
1480 return 0;
1481
1482 return 0;
1483}
1484
1485static int
1486vesa_bios_info(int level)
1487{
1488#if VESA_DEBUG > 1
1489 struct vesa_mode vmode;
1490 int i;
1491#endif
1492
1493 /* general adapter information */
1494 printf("VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n",
1495 ((vesa_adp_info->v_version & 0xf000) >> 12) * 10
1496 + ((vesa_adp_info->v_version & 0x0f00) >> 8),
1497 ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10
1498 + (vesa_adp_info->v_version & 0x000f),
1499 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags,
1500 vesa_vmodetab, vesa_adp_info->v_modetable);
1501 /* OEM string */
1502 if (vesa_oemstr != NULL)
1503 printf("VESA: %s\n", vesa_oemstr);
1504
1505 if (level <= 0)
1506 return 0;
1507
1508 if (vesa_adp_info->v_version >= 0x0200) {
1509 /* vender name, product name, product revision */
1510 printf("VESA: %s %s %s\n",
1511 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown",
1512 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown",
1513 (vesa_revstr != NULL) ? vesa_revstr : "?");
1514 }
1515
1516#if VESA_DEBUG > 1
1517 /* mode information */
1518 for (i = 0;
1519 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1))
1520 && (vesa_vmodetab[i] != 0xffff); ++i) {
1521 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode))
1522 continue;
1523
1524 /* print something for diagnostic purpose */
1525 printf("VESA: mode:0x%03x, flags:0x%04x",
1526 vesa_vmodetab[i], vmode.v_modeattr);
1527 if (vmode.v_modeattr & V_MODEOPTINFO) {
1528 if (vmode.v_modeattr & V_MODEGRAPHICS) {
1529 printf(", G %dx%dx%d %d, ",
1530 vmode.v_width, vmode.v_height,
1531 vmode.v_bpp, vmode.v_planes);
1532 } else {
1533 printf(", T %dx%d, ",
1534 vmode.v_width, vmode.v_height);
1535 }
1536 printf("font:%dx%d, ",
1537 vmode.v_cwidth, vmode.v_cheight);
1538 printf("pages:%d, mem:%d",
1539 vmode.v_ipages + 1, vmode.v_memmodel);
1540 }
1541 if (vmode.v_modeattr & V_MODELFB) {
1542 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x",
1543 vmode.v_lfb, vmode.v_offscreen,
1544 vmode.v_offscreensize*1024);
1545 }
1546 printf("\n");
1547 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ",
1548 vmode.v_waseg, vmode.v_waattr,
1549 vmode.v_wbseg, vmode.v_wbattr);
1550 printf("size:%dk, gran:%dk\n",
1551 vmode.v_wsize, vmode.v_wgran);
1552 }
1553#endif /* VESA_DEBUG > 1 */
1554
1555 return 0;
1556}
1557
1558/* module loading */
1559
1560static int
1561vesa_load(void)
1562{
1563 int error;
1564 int s;
1565
1566 if (vesa_init_done)
1567 return 0;
1568
1569 /* locate a VGA adapter */
1570 s = spltty();
1571 vesa_adp = NULL;
1572 error = vesa_configure(0);
1573 splx(s);
1574
1575 if (error == 0)
1576 vesa_bios_info(bootverbose);
1577
1578 return error;
1579}
1580
1581static int
1582vesa_unload(void)
1583{
1584 u_char palette[256*3];
1585 int error;
1586 int bits;
1587 int s;
1588
1589 /* if the adapter is currently in a VESA mode, don't unload */
1590 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode))
1591 return EBUSY;
1592 /*
1593 * FIXME: if there is at least one vty which is in a VESA mode,
1594 * we shouldn't be unloading! XXX
1595 */
1596
1597 s = spltty();
1598 if ((error = vesa_unload_ioctl()) == 0) {
1599 if (vesa_adp != NULL) {
1600 if (vesa_adp_info->v_flags & V_DAC8) {
1601 bits = vesa_bios_get_dac();
1602 if (bits > 6) {
1603 vesa_bios_save_palette(0, 256,
1604 palette, bits);
1605 vesa_bios_set_dac(6);
1606 vesa_bios_load_palette(0, 256,
1607 palette, 6);
1608 }
1609 }
1610 vesa_adp->va_flags &= ~V_ADP_VESA;
1611 vidsw[vesa_adp->va_index] = prevvidsw;
1612 }
1613 }
1614 splx(s);
1615
1616 return error;
1617}
1618
1619static int
1620vesa_mod_event(module_t mod, int type, void *data)
1621{
1622 switch (type) {
1623 case MOD_LOAD:
1624 return vesa_load();
1625 case MOD_UNLOAD:
1626 return vesa_unload();
1627 default:
1628 break;
1629 }
1630 return 0;
1631}
1632
1633static moduledata_t vesa_mod = {
1634 "vesa",
1635 vesa_mod_event,
1636 NULL,
1637};
1638
1639DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
1640
1641#endif /* VGA_NO_MODE_CHANGE */