Line 0
Link Here
|
|
|
1 |
/* 915resolution - Utility to change vbemodes on the intel |
2 |
* integrated video chipset */ |
3 |
|
4 |
/* Copied from 915 resolution created by steve tomjenovic |
5 |
* 915 resolution was in the public domain. |
6 |
* |
7 |
* All I have done, was make the above program run within |
8 |
* the grub2 environment. |
9 |
* |
10 |
* Some of the checks are still commented, as I did not find |
11 |
* easy replacement for memmem. |
12 |
* |
13 |
* Slightly edited by Nathan Coulson (conathan@gmail.com) |
14 |
*/ |
15 |
|
16 |
/* |
17 |
* GRUB -- GRand Unified Bootloader |
18 |
* Copyright (C) 2003,2007 Free Software Foundation, Inc. |
19 |
* Copyright (C) 2003 NIIBE Yutaka <gniibe@m17n.org> |
20 |
* |
21 |
* GRUB is free software: you can redistribute it and/or modify |
22 |
* it under the terms of the GNU General Public License as published by |
23 |
* the Free Software Foundation, either version 3 of the License, or |
24 |
* (at your option) any later version. |
25 |
* |
26 |
* GRUB is distributed in the hope that it will be useful, |
27 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
28 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
29 |
* GNU General Public License for more details. |
30 |
* |
31 |
* You should have received a copy of the GNU General Public License |
32 |
* along with GRUB. If not, see <http://www.gnu.org/licenses/>. |
33 |
*/ |
34 |
|
35 |
#include <grub/types.h> |
36 |
#include <grub/misc.h> |
37 |
#include <grub/mm.h> |
38 |
#include <grub/err.h> |
39 |
#include <grub/dl.h> |
40 |
#include <grub/normal.h> |
41 |
#include <grub/i386/io.h> |
42 |
|
43 |
#define NEW(a) ((a *)(grub_malloc(sizeof(a)))) |
44 |
#define FREE(a) (grub_free(a)) |
45 |
|
46 |
#define VBIOS_START 0xc0000 |
47 |
#define VBIOS_SIZE 0x10000 |
48 |
|
49 |
#define FALSE 0 |
50 |
#define TRUE 1 |
51 |
|
52 |
#define MODE_TABLE_OFFSET_845G 617 |
53 |
|
54 |
#define VERSION "0.5.3-grub2-1" |
55 |
|
56 |
#define ATI_SIGNATURE1 "ATI MOBILITY RADEON" |
57 |
#define ATI_SIGNATURE2 "ATI Technologies Inc" |
58 |
#define NVIDIA_SIGNATURE "NVIDIA Corp" |
59 |
#define INTEL_SIGNATURE "Intel Corp" |
60 |
|
61 |
typedef unsigned char * address; |
62 |
typedef unsigned char byte; |
63 |
typedef unsigned short word; |
64 |
typedef unsigned char boolean; |
65 |
typedef unsigned int cardinal; |
66 |
|
67 |
typedef enum { |
68 |
CT_UNKWN, CT_830, CT_845G, CT_855GM, CT_865G, CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME, |
69 |
CT_946GZ, CT_G965, CT_Q965 |
70 |
} chipset_type; |
71 |
|
72 |
char * chipset_type_names[] = { |
73 |
"UNKNOWN", "830", "845G", "855GM", "865G", "915G", "915GM", "945G", "945GM", "945GME", |
74 |
"946GZ", "G965", "Q965" |
75 |
}; |
76 |
|
77 |
typedef enum { |
78 |
BT_UNKWN, BT_1, BT_2, BT_3 |
79 |
} bios_type; |
80 |
|
81 |
char * bios_type_names[] = {"UNKNOWN", "TYPE 1", "TYPE 2", "TYPE 3"}; |
82 |
|
83 |
int freqs[] = { 60, 75, 85 }; |
84 |
|
85 |
typedef struct { |
86 |
byte mode; |
87 |
byte bits_per_pixel; |
88 |
word resolution; |
89 |
byte unknown; |
90 |
} __attribute__((packed)) vbios_mode; |
91 |
|
92 |
typedef struct { |
93 |
byte unknow1[2]; |
94 |
byte x1; |
95 |
byte x_total; |
96 |
byte x2; |
97 |
byte y1; |
98 |
byte y_total; |
99 |
byte y2; |
100 |
} __attribute__((packed)) vbios_resolution_type1; |
101 |
|
102 |
typedef struct { |
103 |
unsigned long clock; |
104 |
|
105 |
word x1; |
106 |
word htotal; |
107 |
word x2; |
108 |
word hblank; |
109 |
word hsyncstart; |
110 |
word hsyncend; |
111 |
word y1; |
112 |
word vtotal; |
113 |
word y2; |
114 |
word vblank; |
115 |
word vsyncstart; |
116 |
word vsyncend; |
117 |
} __attribute__((packed)) vbios_modeline_type2; |
118 |
|
119 |
typedef struct { |
120 |
byte xchars; |
121 |
byte ychars; |
122 |
byte unknown[4]; |
123 |
|
124 |
vbios_modeline_type2 modelines[]; |
125 |
} __attribute__((packed)) vbios_resolution_type2; |
126 |
|
127 |
typedef struct { |
128 |
unsigned long clock; |
129 |
|
130 |
word x1; |
131 |
word htotal; |
132 |
word x2; |
133 |
word hblank; |
134 |
word hsyncstart; |
135 |
word hsyncend; |
136 |
|
137 |
word y1; |
138 |
word vtotal; |
139 |
word y2; |
140 |
word vblank; |
141 |
word vsyncstart; |
142 |
word vsyncend; |
143 |
|
144 |
word timing_h; |
145 |
word timing_v; |
146 |
|
147 |
byte unknown[6]; |
148 |
} __attribute__((packed)) vbios_modeline_type3; |
149 |
|
150 |
typedef struct { |
151 |
unsigned char unknown[6]; |
152 |
|
153 |
vbios_modeline_type3 modelines[]; |
154 |
} __attribute__((packed)) vbios_resolution_type3; |
155 |
|
156 |
typedef struct { |
157 |
cardinal chipset_id; |
158 |
chipset_type chipset; |
159 |
bios_type bios; |
160 |
|
161 |
int bios_fd; |
162 |
address bios_ptr; |
163 |
|
164 |
vbios_mode * mode_table; |
165 |
cardinal mode_table_size; |
166 |
byte b1, b2; |
167 |
|
168 |
boolean unlocked; |
169 |
} vbios_map; |
170 |
|
171 |
|
172 |
cardinal get_chipset_id(void) { |
173 |
grub_outl(0x80000000, 0xcf8); |
174 |
return grub_inl(0xcfc); |
175 |
} |
176 |
|
177 |
chipset_type get_chipset(cardinal id) { |
178 |
chipset_type type; |
179 |
|
180 |
switch (id) { |
181 |
case 0x35758086: |
182 |
type = CT_830; |
183 |
break; |
184 |
|
185 |
case 0x25608086: |
186 |
type = CT_845G; |
187 |
break; |
188 |
|
189 |
case 0x35808086: |
190 |
type = CT_855GM; |
191 |
break; |
192 |
|
193 |
case 0x25708086: |
194 |
type = CT_865G; |
195 |
break; |
196 |
|
197 |
case 0x25808086: |
198 |
type = CT_915G; |
199 |
break; |
200 |
|
201 |
case 0x25908086: |
202 |
type = CT_915GM; |
203 |
break; |
204 |
|
205 |
case 0x27708086: |
206 |
type = CT_945G; |
207 |
break; |
208 |
|
209 |
case 0x27a08086: |
210 |
type = CT_945GM; |
211 |
break; |
212 |
|
213 |
case 0x27ac8086: |
214 |
type = CT_945GME; |
215 |
break; |
216 |
|
217 |
case 0x29708086: |
218 |
type = CT_946GZ; |
219 |
break; |
220 |
|
221 |
case 0x29a08086: |
222 |
type = CT_G965; |
223 |
break; |
224 |
|
225 |
case 0x29908086: |
226 |
type = CT_Q965; |
227 |
break; |
228 |
|
229 |
default: |
230 |
type = CT_UNKWN; |
231 |
break; |
232 |
} |
233 |
|
234 |
return type; |
235 |
} |
236 |
|
237 |
vbios_resolution_type1 * map_type1_resolution(vbios_map * map, word res) { |
238 |
vbios_resolution_type1 * ptr = ((vbios_resolution_type1*)(map->bios_ptr + res)); |
239 |
return ptr; |
240 |
} |
241 |
|
242 |
vbios_resolution_type2 * map_type2_resolution(vbios_map * map, word res) { |
243 |
vbios_resolution_type2 * ptr = ((vbios_resolution_type2*)(map->bios_ptr + res)); |
244 |
return ptr; |
245 |
} |
246 |
|
247 |
vbios_resolution_type3 * map_type3_resolution(vbios_map * map, word res) { |
248 |
vbios_resolution_type3 * ptr = ((vbios_resolution_type3*)(map->bios_ptr + res)); |
249 |
return ptr; |
250 |
} |
251 |
|
252 |
boolean detect_bios_type(vbios_map * map, boolean modeline, int entry_size) { |
253 |
int i; |
254 |
short int r1, r2; |
255 |
|
256 |
r1 = r2 = 32000; |
257 |
|
258 |
for (i=0; i < map->mode_table_size; i++) { |
259 |
if (map->mode_table[i].resolution <= r1) { |
260 |
r1 = map->mode_table[i].resolution; |
261 |
} |
262 |
else { |
263 |
if (map->mode_table[i].resolution <= r2) { |
264 |
r2 = map->mode_table[i].resolution; |
265 |
} |
266 |
} |
267 |
|
268 |
/*printf("r1 = %d r2 = %d\n", r1, r2);*/ |
269 |
} |
270 |
|
271 |
return (r2-r1-6) % entry_size == 0; |
272 |
} |
273 |
|
274 |
void close_vbios(vbios_map * map); |
275 |
|
276 |
vbios_map * open_vbios(chipset_type forced_chipset) { |
277 |
int z; |
278 |
vbios_map * map = NEW(vbios_map); |
279 |
for(z=0; z<sizeof(vbios_map); z++) ((char*)map)[z]=0; |
280 |
/* |
281 |
* Determine chipset |
282 |
*/ |
283 |
|
284 |
if (forced_chipset == CT_UNKWN) { |
285 |
map->chipset_id = get_chipset_id(); |
286 |
map->chipset = get_chipset(map->chipset_id); |
287 |
} |
288 |
else if (forced_chipset != CT_UNKWN) { |
289 |
map->chipset = forced_chipset; |
290 |
} |
291 |
else { |
292 |
map->chipset = CT_915GM; |
293 |
} |
294 |
|
295 |
/* |
296 |
* Map the video bios to memory |
297 |
*/ |
298 |
|
299 |
map->bios_ptr=(char*)VBIOS_START; |
300 |
|
301 |
/* |
302 |
* check if we have ATI Radeon |
303 |
*/ |
304 |
|
305 |
/*if (memmem(map->bios_ptr, VBIOS_SIZE, ATI_SIGNATURE1, strlen(ATI_SIGNATURE1)) || |
306 |
memmem(map->bios_ptr, VBIOS_SIZE, ATI_SIGNATURE2, strlen(ATI_SIGNATURE2)) ) { |
307 |
grub_printf(stderr, "ATI chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\n"); |
308 |
return 0; |
309 |
}*/ |
310 |
|
311 |
/* |
312 |
* check if we have NVIDIA |
313 |
*/ |
314 |
|
315 |
/*if (memmem(map->bios_ptr, VBIOS_SIZE, NVIDIA_SIGNATURE, strlen(NVIDIA_SIGNATURE))) { |
316 |
grub_printf("NVIDIA chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\n"); |
317 |
return 0; |
318 |
}*/ |
319 |
|
320 |
/* |
321 |
* check if we have Intel |
322 |
*/ |
323 |
|
324 |
/*if (map->chipset == CT_UNKWN && memmem(map->bios_ptr, VBIOS_SIZE, INTEL_SIGNATURE, strlen(INTEL_SIGNATURE))) { |
325 |
grub_printf( "Intel chipset detected. However, 915resolution was unable to determine the chipset type.\n"); |
326 |
|
327 |
grub_printf("Chipset Id: %x\n", map->chipset_id); |
328 |
|
329 |
grub_printf("Please report this problem to stomljen@yahoo.com\n"); |
330 |
|
331 |
close_vbios(map); |
332 |
return 0; |
333 |
}*/ |
334 |
|
335 |
/* |
336 |
* check for others |
337 |
*/ |
338 |
|
339 |
if (map->chipset == CT_UNKWN) { |
340 |
grub_printf("Unknown chipset type and unrecognized bios.\n"); |
341 |
|
342 |
grub_printf("915resolution only works with Intel 800/900 series graphic chipsets.\n"); |
343 |
|
344 |
grub_printf("Chipset Id: %x\n", map->chipset_id); |
345 |
close_vbios(map); |
346 |
return 0; |
347 |
} |
348 |
|
349 |
/* |
350 |
* Figure out where the mode table is |
351 |
*/ |
352 |
|
353 |
{ |
354 |
address p = map->bios_ptr + 16; |
355 |
address limit = map->bios_ptr + VBIOS_SIZE - (3 * sizeof(vbios_mode)); |
356 |
|
357 |
while (p < limit && map->mode_table == 0) { |
358 |
vbios_mode * mode_ptr = (vbios_mode *) p; |
359 |
|
360 |
if (((mode_ptr[0].mode & 0xf0) == 0x30) && ((mode_ptr[1].mode & 0xf0) == 0x30) && |
361 |
((mode_ptr[2].mode & 0xf0) == 0x30) && ((mode_ptr[3].mode & 0xf0) == 0x30)) { |
362 |
map->mode_table = mode_ptr; |
363 |
} |
364 |
|
365 |
p++; |
366 |
} |
367 |
|
368 |
if (map->mode_table == 0) { |
369 |
grub_printf("Unable to locate the mode table.\n"); |
370 |
grub_printf("Please run the program 'dump_bios' as root and\n"); |
371 |
grub_printf("email the file 'vbios.dmp' to stomljen@yahoo.com.\n"); |
372 |
grub_printf("Chipset: %s\n", chipset_type_names[map->chipset]); |
373 |
close_vbios(map); |
374 |
return 0; |
375 |
} |
376 |
} |
377 |
|
378 |
/* |
379 |
* Determine size of mode table |
380 |
*/ |
381 |
|
382 |
{ |
383 |
vbios_mode * mode_ptr = map->mode_table; |
384 |
|
385 |
while (mode_ptr->mode != 0xff) { |
386 |
map->mode_table_size++; |
387 |
mode_ptr++; |
388 |
} |
389 |
} |
390 |
|
391 |
/* |
392 |
* Figure out what type of bios we have |
393 |
* order of detection is important |
394 |
*/ |
395 |
|
396 |
if (detect_bios_type(map, TRUE, sizeof(vbios_modeline_type3))) { |
397 |
map->bios = BT_3; |
398 |
} |
399 |
else if (detect_bios_type(map, TRUE, sizeof(vbios_modeline_type2))) { |
400 |
map->bios = BT_2; |
401 |
} |
402 |
else if (detect_bios_type(map, FALSE, sizeof(vbios_resolution_type1))) { |
403 |
map->bios = BT_1; |
404 |
} |
405 |
else { |
406 |
grub_printf("Unable to determine bios type.\n"); |
407 |
grub_printf("Please run the program 'dump_bios' as root and\n"); |
408 |
grub_printf("email the file 'vbios.dmp' to stomljen@yahoo.com.\n"); |
409 |
|
410 |
grub_printf("Chipset: %s\n", chipset_type_names[map->chipset]); |
411 |
grub_printf("Mode Table Offset: $C0000 + $%x\n", ((cardinal)map->mode_table) - ((cardinal)map->bios_ptr)); |
412 |
|
413 |
grub_printf("Mode Table Entries: %u\n", map->mode_table_size); |
414 |
return 0; |
415 |
} |
416 |
|
417 |
return map; |
418 |
} |
419 |
|
420 |
void close_vbios(vbios_map * map) { |
421 |
FREE(map); |
422 |
} |
423 |
|
424 |
void unlock_vbios(vbios_map * map) { |
425 |
|
426 |
map->unlocked = TRUE; |
427 |
|
428 |
switch (map->chipset) { |
429 |
case CT_UNKWN: |
430 |
break; |
431 |
case CT_830: |
432 |
case CT_855GM: |
433 |
grub_outl(0x8000005a, 0xcf8); |
434 |
map->b1 = grub_inb(0xcfe); |
435 |
|
436 |
grub_outl(0x8000005a, 0xcf8); |
437 |
grub_outb(0x33, 0xcfe); |
438 |
break; |
439 |
case CT_845G: |
440 |
case CT_865G: |
441 |
case CT_915G: |
442 |
case CT_915GM: |
443 |
case CT_945G: |
444 |
case CT_945GM: |
445 |
case CT_945GME: |
446 |
case CT_946GZ: |
447 |
case CT_G965: |
448 |
case CT_Q965: |
449 |
grub_outl(0x80000090, 0xcf8); |
450 |
map->b1 = grub_inb(0xcfd); |
451 |
map->b2 = grub_inb(0xcfe); |
452 |
grub_outl(0x80000090, 0xcf8); |
453 |
grub_outb(0x33, 0xcfd); |
454 |
grub_outb(0x33, 0xcfe); |
455 |
break; |
456 |
} |
457 |
|
458 |
#if DEBUG |
459 |
{ |
460 |
cardinal t = grub_inl(0xcfc); |
461 |
grub_printf("unlock PAM: (0x%08x)\n", t); |
462 |
} |
463 |
#endif |
464 |
} |
465 |
|
466 |
void relock_vbios(vbios_map * map) { |
467 |
|
468 |
map->unlocked = FALSE; |
469 |
|
470 |
switch (map->chipset) { |
471 |
case CT_UNKWN: |
472 |
break; |
473 |
case CT_830: |
474 |
case CT_855GM: |
475 |
grub_outl(0x8000005a, 0xcf8); |
476 |
grub_outb(map->b1, 0xcfe); |
477 |
break; |
478 |
case CT_845G: |
479 |
case CT_865G: |
480 |
case CT_915G: |
481 |
case CT_915GM: |
482 |
case CT_945G: |
483 |
case CT_945GM: |
484 |
case CT_945GME: |
485 |
case CT_946GZ: |
486 |
case CT_G965: |
487 |
case CT_Q965: |
488 |
grub_outl(0x80000090, 0xcf8); |
489 |
grub_outb(map->b1, 0xcfd); |
490 |
grub_outb(map->b2, 0xcfe); |
491 |
break; |
492 |
} |
493 |
|
494 |
#if DEBUG |
495 |
{ |
496 |
cardinal t = inl(0xcfc); |
497 |
grub_printf("relock PAM: (0x%08x)\n", t); |
498 |
} |
499 |
#endif |
500 |
} |
501 |
|
502 |
|
503 |
|
504 |
|
505 |
|
506 |
|
507 |
|
508 |
|
509 |
|
510 |
|
511 |
|
512 |
|
513 |
|
514 |
|
515 |
|
516 |
|
517 |
|
518 |
|
519 |
|
520 |
|
521 |
|
522 |
|
523 |
void list_modes(vbios_map *map, cardinal raw) { |
524 |
cardinal i, x, y; |
525 |
|
526 |
for (i=0; i < map->mode_table_size; i++) { |
527 |
switch(map->bios) { |
528 |
case BT_1: |
529 |
{ |
530 |
vbios_resolution_type1 * res = map_type1_resolution(map, map->mode_table[i].resolution); |
531 |
|
532 |
x = ((((cardinal) res->x2) & 0xf0) << 4) | res->x1; |
533 |
y = ((((cardinal) res->y2) & 0xf0) << 4) | res->y1; |
534 |
|
535 |
if (x != 0 && y != 0) { |
536 |
grub_printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel); |
537 |
} |
538 |
|
539 |
if (raw) |
540 |
{ |
541 |
grub_printf("Mode %02x (raw) :\n\t%02x %02x\n\t%02x\n\t%02x\n\t%02x\n\t%02x\n\t%02x\n\t%02x\n", map->mode_table[i].mode, res->unknow1[0],res->unknow1[1], res->x1,res->x_total,res->x2,res->y1,res->y_total,res->y2); |
542 |
} |
543 |
|
544 |
} |
545 |
break; |
546 |
case BT_2: |
547 |
{ |
548 |
vbios_resolution_type2 * res = map_type2_resolution(map, map->mode_table[i].resolution); |
549 |
|
550 |
x = res->modelines[0].x1+1; |
551 |
y = res->modelines[0].y1+1; |
552 |
|
553 |
if (x != 0 && y != 0) { |
554 |
grub_printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel); |
555 |
} |
556 |
} |
557 |
break; |
558 |
case BT_3: |
559 |
{ |
560 |
vbios_resolution_type3 * res = map_type3_resolution(map, map->mode_table[i].resolution); |
561 |
|
562 |
x = res->modelines[0].x1+1; |
563 |
y = res->modelines[0].y1+1; |
564 |
|
565 |
if (x != 0 && y != 0) { |
566 |
grub_printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel); |
567 |
} |
568 |
} |
569 |
break; |
570 |
case BT_UNKWN: |
571 |
break; |
572 |
} |
573 |
} |
574 |
} |
575 |
|
576 |
|
577 |
|
578 |
|
579 |
|
580 |
static void gtf_timings(int x, int y, int freq, |
581 |
unsigned long *clock, |
582 |
word *hsyncstart, word *hsyncend, word *hblank, |
583 |
word *vsyncstart, word *vsyncend, word *vblank) |
584 |
{ |
585 |
int hbl, vbl, vfreq; |
586 |
|
587 |
vbl = y + (y+1)/(20000.0/(11*freq) - 1) + 1.5; |
588 |
vfreq = vbl * freq; |
589 |
hbl = 16 * (int)(x * (30.0 - 300000.0 / vfreq) / |
590 |
(70.0 + 300000.0 / vfreq) / 16.0 + 0.5); |
591 |
|
592 |
*vsyncstart = y; |
593 |
*vsyncend = y + 3; |
594 |
*vblank = vbl - 1; |
595 |
*hsyncstart = x + hbl / 2 - (x + hbl + 50) / 100 * 8 - 1; |
596 |
*hsyncend = x + hbl / 2 - 1; |
597 |
*hblank = x + hbl - 1; |
598 |
*clock = (x + hbl) * vfreq / 1000; |
599 |
} |
600 |
|
601 |
void set_mode(vbios_map * map, cardinal mode, cardinal x, cardinal y, cardinal bp, cardinal htotal, cardinal vtotal) { |
602 |
int xprev, yprev; |
603 |
cardinal i, j; |
604 |
|
605 |
for (i=0; i < map->mode_table_size; i++) { |
606 |
if (map->mode_table[i].mode == mode) { |
607 |
switch(map->bios) { |
608 |
case BT_1: |
609 |
{ |
610 |
vbios_resolution_type1 * res = map_type1_resolution(map, map->mode_table[i].resolution); |
611 |
|
612 |
if (bp) { |
613 |
map->mode_table[i].bits_per_pixel = bp; |
614 |
} |
615 |
|
616 |
res->x2 = (htotal?(((htotal-x) >> 8) & 0x0f) : (res->x2 & 0x0f)) | ((x >> 4) & 0xf0); |
617 |
res->x1 = (x & 0xff); |
618 |
|
619 |
res->y2 = (vtotal?(((vtotal-y) >> 8) & 0x0f) : (res->y2 & 0x0f)) | ((y >> 4) & 0xf0); |
620 |
res->y1 = (y & 0xff); |
621 |
if (htotal) |
622 |
res->x_total = ((htotal-x) & 0xff); |
623 |
|
624 |
if (vtotal) |
625 |
res->y_total = ((vtotal-y) & 0xff); |
626 |
} |
627 |
break; |
628 |
case BT_2: |
629 |
{ |
630 |
vbios_resolution_type2 * res = map_type2_resolution(map, map->mode_table[i].resolution); |
631 |
|
632 |
res->xchars = x / 8; |
633 |
res->ychars = y / 16 - 1; |
634 |
xprev = res->modelines[0].x1; |
635 |
yprev = res->modelines[0].y1; |
636 |
|
637 |
for(j=0; j < 3; j++) { |
638 |
vbios_modeline_type2 * modeline = &res->modelines[j]; |
639 |
|
640 |
if (modeline->x1 == xprev && modeline->y1 == yprev) { |
641 |
modeline->x1 = modeline->x2 = x-1; |
642 |
modeline->y1 = modeline->y2 = y-1; |
643 |
|
644 |
gtf_timings(x, y, freqs[j], &modeline->clock, |
645 |
&modeline->hsyncstart, &modeline->hsyncend, |
646 |
&modeline->hblank, &modeline->vsyncstart, |
647 |
&modeline->vsyncend, &modeline->vblank); |
648 |
|
649 |
if (htotal) |
650 |
modeline->htotal = htotal; |
651 |
else |
652 |
modeline->htotal = modeline->hblank; |
653 |
|
654 |
if (vtotal) |
655 |
modeline->vtotal = vtotal; |
656 |
else |
657 |
modeline->vtotal = modeline->vblank; |
658 |
} |
659 |
} |
660 |
} |
661 |
break; |
662 |
case BT_3: |
663 |
{ |
664 |
vbios_resolution_type3 * res = map_type3_resolution(map, map->mode_table[i].resolution); |
665 |
|
666 |
xprev = res->modelines[0].x1; |
667 |
yprev = res->modelines[0].y1; |
668 |
|
669 |
for (j=0; j < 3; j++) { |
670 |
vbios_modeline_type3 * modeline = &res->modelines[j]; |
671 |
|
672 |
if (modeline->x1 == xprev && modeline->y1 == yprev) { |
673 |
modeline->x1 = modeline->x2 = x-1; |
674 |
modeline->y1 = modeline->y2 = y-1; |
675 |
|
676 |
gtf_timings(x, y, freqs[j], &modeline->clock, |
677 |
&modeline->hsyncstart, &modeline->hsyncend, |
678 |
&modeline->hblank, &modeline->vsyncstart, |
679 |
&modeline->vsyncend, &modeline->vblank); |
680 |
if (htotal) |
681 |
modeline->htotal = htotal; |
682 |
else |
683 |
modeline->htotal = modeline->hblank; |
684 |
if (vtotal) |
685 |
modeline->vtotal = vtotal; |
686 |
else |
687 |
modeline->vtotal = modeline->vblank; |
688 |
|
689 |
modeline->timing_h = y-1; |
690 |
modeline->timing_v = x-1; |
691 |
} |
692 |
} |
693 |
} |
694 |
break; |
695 |
case BT_UNKWN: |
696 |
break; |
697 |
} |
698 |
} |
699 |
} |
700 |
} |
701 |
|
702 |
void display_map_info(vbios_map * map) { |
703 |
grub_printf("Chipset: %s\n", chipset_type_names[map->chipset]); |
704 |
grub_printf("BIOS: %s\n", bios_type_names[map->bios]); |
705 |
|
706 |
grub_printf("Mode Table Offset: $C0000 + $%x\n", ((cardinal)map->mode_table) - ((cardinal)map->bios_ptr)); |
707 |
grub_printf("Mode Table Entries: %u\n", map->mode_table_size); |
708 |
} |
709 |
|
710 |
|
711 |
int parse_args(int argc, char *argv[], chipset_type *forced_chipset, cardinal *list, cardinal *mode, cardinal *x, cardinal *y, cardinal *bp, cardinal *raw, cardinal *htotal, cardinal *vtotal) { |
712 |
cardinal index = 0; |
713 |
|
714 |
*list = *mode = *x = *y = *raw = *htotal = *vtotal = 0; |
715 |
|
716 |
*forced_chipset = CT_UNKWN; |
717 |
|
718 |
|
719 |
if ((argc > index) && !grub_strcmp(argv[index], "-c")) { |
720 |
index++; |
721 |
|
722 |
if(argc<=index) { |
723 |
return 0; |
724 |
} |
725 |
|
726 |
if (!grub_strcmp(argv[index], "845")) { |
727 |
*forced_chipset = CT_845G; |
728 |
} |
729 |
else if (!grub_strcmp(argv[index], "855")) { |
730 |
*forced_chipset = CT_855GM; |
731 |
} |
732 |
else if (!grub_strcmp(argv[index], "865")) { |
733 |
*forced_chipset = CT_865G; |
734 |
} |
735 |
else if (!grub_strcmp(argv[index], "915G")) { |
736 |
*forced_chipset = CT_915G; |
737 |
} |
738 |
else if (!grub_strcmp(argv[index], "915GM")) { |
739 |
*forced_chipset = CT_915GM; |
740 |
} |
741 |
else if (!grub_strcmp(argv[index], "945G")) { |
742 |
*forced_chipset = CT_945G; |
743 |
} |
744 |
else if (!grub_strcmp(argv[index], "945GM")) { |
745 |
*forced_chipset = CT_945GM; |
746 |
} |
747 |
else if (!grub_strcmp(argv[index], "945GME")) { |
748 |
*forced_chipset = CT_945GME; |
749 |
} |
750 |
else if (!grub_strcmp(argv[index], "946GZ")) { |
751 |
*forced_chipset = CT_946GZ; |
752 |
} |
753 |
else if (!grub_strcmp(argv[index], "G965")) { |
754 |
*forced_chipset = CT_G965; |
755 |
} |
756 |
else if (!grub_strcmp(argv[index], "Q965")) { |
757 |
*forced_chipset = CT_Q965; |
758 |
} |
759 |
else { |
760 |
*forced_chipset = CT_UNKWN; |
761 |
} |
762 |
|
763 |
index++; |
764 |
|
765 |
if (argc<=index) { |
766 |
return 0; |
767 |
} |
768 |
} |
769 |
|
770 |
if ((argc > index) && !grub_strcmp(argv[index], "-l")) { |
771 |
*list = 1; |
772 |
index++; |
773 |
|
774 |
if(argc<=index) { |
775 |
return 0; |
776 |
} |
777 |
} |
778 |
|
779 |
if ((argc > index) && !grub_strcmp(argv[index], "-r")) { |
780 |
*raw = 1; |
781 |
index++; |
782 |
|
783 |
if(argc<=index) { |
784 |
return 0; |
785 |
} |
786 |
} |
787 |
|
788 |
if (argc-index < 3 || argc-index > 6) { |
789 |
return -1; |
790 |
} |
791 |
|
792 |
*mode = (cardinal) grub_strtoul(argv[index], NULL, 16); |
793 |
*x = (cardinal)grub_strtoul(argv[index+1], NULL, 10); |
794 |
*y = (cardinal)grub_strtoul(argv[index+2], NULL, 10); |
795 |
|
796 |
|
797 |
if (argc-index > 3) { |
798 |
*bp = (cardinal)grub_strtoul(argv[index+3], NULL, 10); |
799 |
} |
800 |
else { |
801 |
*bp = 0; |
802 |
} |
803 |
|
804 |
if (argc-index > 4) { |
805 |
*htotal = (cardinal)grub_strtoul(argv[index+4], NULL, 10); |
806 |
} |
807 |
else { |
808 |
*htotal = 0; |
809 |
} |
810 |
|
811 |
if (argc-index > 5) { |
812 |
*vtotal = (cardinal)grub_strtoul(argv[index+5], NULL, 10); |
813 |
} |
814 |
else { |
815 |
*vtotal = 0; |
816 |
} |
817 |
|
818 |
return 0; |
819 |
} |
820 |
|
821 |
void usage() { |
822 |
grub_printf("Usage: 915resolution [-c chipset] [-l] [mode X Y] [bits/pixel] [htotal] [vtotal]\n"); |
823 |
grub_printf(" Set the resolution to XxY for a video mode\n"); |
824 |
grub_printf(" Bits per pixel are optional. htotal/vtotal settings are additionally optional.\n"); |
825 |
grub_printf(" Options:\n"); |
826 |
grub_printf(" -c force chipset type (THIS IS USED FOR DEBUG PURPOSES)\n"); |
827 |
grub_printf(" -l display the modes found in the video BIOS\n"); |
828 |
grub_printf(" -r display the modes found in the video BIOS in raw mode (THIS IS USED FOR DEBUG PURPOSES)\n"); |
829 |
} |
830 |
|
831 |
static grub_err_t |
832 |
grub_cmd_915resolution (struct grub_arg_list *state , |
833 |
int argc , |
834 |
char **argv ) |
835 |
{ |
836 |
vbios_map * map; |
837 |
cardinal list, mode, x, y, bp, raw, htotal, vtotal; |
838 |
chipset_type forced_chipset; |
839 |
|
840 |
grub_printf("Intel 800/900 Series VBIOS Hack : version %s\n\n", VERSION); |
841 |
|
842 |
if (parse_args(argc, argv, &forced_chipset, &list, &mode, &x, &y, &bp, &raw, &htotal, &vtotal) == -1) { |
843 |
usage(); |
844 |
return 2; |
845 |
} |
846 |
|
847 |
map = open_vbios(forced_chipset); |
848 |
display_map_info(map); |
849 |
|
850 |
grub_printf("\n"); |
851 |
|
852 |
if (list) { |
853 |
list_modes(map, raw); |
854 |
} |
855 |
|
856 |
if (mode!=0 && x!=0 && y!=0) { |
857 |
unlock_vbios(map); |
858 |
|
859 |
set_mode(map, mode, x, y, bp, htotal, vtotal); |
860 |
|
861 |
relock_vbios(map); |
862 |
|
863 |
grub_printf("Patch mode %02x to resolution %dx%d complete\n", mode, x, y); |
864 |
|
865 |
if (list) { |
866 |
list_modes(map, raw); |
867 |
} |
868 |
} |
869 |
|
870 |
close_vbios(map); |
871 |
|
872 |
return 0; |
873 |
} |
874 |
|
875 |
|
876 |
|
877 |
|
878 |
|
879 |
|
880 |
|
881 |
GRUB_MOD_INIT(915resolution) |
882 |
{ |
883 |
(void)mod; /* To stop warning. */ |
884 |
grub_register_command ("915resolution", grub_cmd_915resolution, GRUB_COMMAND_FLAG_BOTH, |
885 |
"915resolution", "Intel VBE editor", 0); |
886 |
} |
887 |
|
888 |
GRUB_MOD_FINI(915resolution) |
889 |
{ |
890 |
grub_unregister_command ("915resolution"); |
891 |
} |