| 1 | ␊ |
| 2 | /* Copied from 915 resolution created by steve tomljenovic␊ |
| 3 | *␊ |
| 4 | * This code is based on the techniques used in :␊ |
| 5 | *␊ |
| 6 | * - 855patch. Many thanks to Christian Zietz (czietz gmx net)␊ |
| 7 | * for demonstrating how to shadow the VBIOS into system RAM␊ |
| 8 | * and then modify it.␊ |
| 9 | *␊ |
| 10 | * - 1280patch by Andrew Tipton (andrewtipton null li).␊ |
| 11 | *␊ |
| 12 | * - 855resolution by Alain Poirier␊ |
| 13 | *␊ |
| 14 | * This source code is into the public domain.␊ |
| 15 | */␊ |
| 16 | ␊ |
| 17 | #include "libsaio.h"␊ |
| 18 | #include "915resolution.h"␊ |
| 19 | ␊ |
| 20 | char * chipset_type_names[] = {␊ |
| 21 | ␉"UNKNOWN", "830", "845G", "855GM", "865G", "915G", "915GM", "945G", "945GM", "945GME",␊ |
| 22 | ␉"946GZ", "G965", "Q965", "965GM", "500"␊ |
| 23 | };␊ |
| 24 | ␊ |
| 25 | char * bios_type_names[] = {"UNKNOWN", "TYPE 1", "TYPE 2", "TYPE 3"};␊ |
| 26 | ␊ |
| 27 | int freqs[] = { 60, 75, 85 };␊ |
| 28 | ␊ |
| 29 | UInt32 get_chipset_id(void) {␊ |
| 30 | ␉outl(0xcf8, 0x80000000);␊ |
| 31 | ␉return inl(0xcfc);␊ |
| 32 | }␊ |
| 33 | ␊ |
| 34 | chipset_type get_chipset(UInt32 id) {␊ |
| 35 | ␉chipset_type type;␊ |
| 36 | ␉␊ |
| 37 | ␉switch (id) {␊ |
| 38 | ␉␉case 0x35758086:␊ |
| 39 | ␉␉␉type = CT_830;␊ |
| 40 | ␉␉␉break;␊ |
| 41 | ␉␉␊ |
| 42 | ␉␉case 0x25608086:␊ |
| 43 | ␉␉␉type = CT_845G;␊ |
| 44 | ␉␉␉break;␊ |
| 45 | ␉␉␉␉␊ |
| 46 | ␉␉case 0x35808086:␊ |
| 47 | ␉␉␉type = CT_855GM;␊ |
| 48 | ␉␉␉break;␊ |
| 49 | ␉␉␉␉␊ |
| 50 | ␉␉case 0x25708086:␊ |
| 51 | ␉␉␉type = CT_865G;␊ |
| 52 | ␉␉␉break;␊ |
| 53 | ␉␉␊ |
| 54 | ␉␉case 0x25808086:␊ |
| 55 | ␉␉␉type = CT_915G;␊ |
| 56 | ␉␉␉break;␊ |
| 57 | ␉␉␉␊ |
| 58 | ␉␉case 0x25908086:␊ |
| 59 | ␉␉␉type = CT_915GM;␊ |
| 60 | ␉␉␉break;␊ |
| 61 | ␉␉␉␊ |
| 62 | ␉␉case 0x27708086:␊ |
| 63 | ␉␉␉type = CT_945G;␊ |
| 64 | ␉␉␉break;␊ |
| 65 | ␉␉␊ |
| 66 | ␉␉case 0x27a08086:␊ |
| 67 | ␉␉␉type = CT_945GM;␊ |
| 68 | ␉␉␉break;␊ |
| 69 | ␊ |
| 70 | ␉␉case 0x27a68086:␊ |
| 71 | ␉␉␉type = CT_945GM;␊ |
| 72 | ␉␉␉break;␊ |
| 73 | ␊ |
| 74 | ␉␉case 0x27ac8086:␊ |
| 75 | ␉␉␉type = CT_945GME;␊ |
| 76 | ␉␉␉break;␊ |
| 77 | ␊ |
| 78 | ␉␉case 0x27ae8086:␊ |
| 79 | ␉␉␉type = CT_945GM;␊ |
| 80 | ␉␉␉break;␊ |
| 81 | ␊ |
| 82 | ␉␉case 0x29708086:␊ |
| 83 | ␉␉␉type = CT_946GZ;␊ |
| 84 | ␉␉␉break;␊ |
| 85 | ␉␉␉␊ |
| 86 | ␉␉case 0x29a08086:␊ |
| 87 | ␉␉␉type = CT_G965;␊ |
| 88 | ␉␉␉break;␊ |
| 89 | ␉␉␉␊ |
| 90 | ␉␉case 0x29908086:␊ |
| 91 | ␉␉␉type = CT_Q965;␊ |
| 92 | ␉␉␉break;␊ |
| 93 | ␉␉␉␊ |
| 94 | ␉␉case 0x81008086:␊ |
| 95 | ␉␉␉type = CT_500;␊ |
| 96 | ␉␉␉break;␊ |
| 97 | ␉␉␉␊ |
| 98 | ␉␉case 0x2a008086:␊ |
| 99 | ␉␉␉type = CT_965GM;␊ |
| 100 | ␉␉␉break;␊ |
| 101 | ␉␉␉␊ |
| 102 | ␉␉␉␊ |
| 103 | ␉␉default:␊ |
| 104 | ␉␉␉type = CT_UNKWN;␊ |
| 105 | ␉␉␉break;␊ |
| 106 | ␉}␊ |
| 107 | ␉return type;␊ |
| 108 | }␊ |
| 109 | ␊ |
| 110 | vbios_resolution_type1 * map_type1_resolution(vbios_map * map, UInt16 res) {␊ |
| 111 | ␉vbios_resolution_type1 * ptr = ((vbios_resolution_type1*)(map->bios_ptr + res)); ␊ |
| 112 | ␉return ptr;␊ |
| 113 | }␊ |
| 114 | ␊ |
| 115 | vbios_resolution_type2 * map_type2_resolution(vbios_map * map, UInt16 res) {␊ |
| 116 | ␉vbios_resolution_type2 * ptr = ((vbios_resolution_type2*)(map->bios_ptr + res)); ␊ |
| 117 | ␉return ptr;␊ |
| 118 | }␊ |
| 119 | ␊ |
| 120 | vbios_resolution_type3 * map_type3_resolution(vbios_map * map, UInt16 res) {␊ |
| 121 | ␉vbios_resolution_type3 * ptr = ((vbios_resolution_type3*)(map->bios_ptr + res)); ␊ |
| 122 | ␉return ptr;␊ |
| 123 | }␊ |
| 124 | ␊ |
| 125 | char detect_bios_type(vbios_map * map, char modeline, int entry_size) {␊ |
| 126 | ␉UInt32 i;␊ |
| 127 | ␉UInt16 r1, r2;␊ |
| 128 | ␉ ␊ |
| 129 | ␉r1 = r2 = 32000;␊ |
| 130 | ␉␊ |
| 131 | ␉for (i=0; i < map->mode_table_size; i++) {␊ |
| 132 | ␉␉if (map->mode_table[i].resolution <= r1) {␊ |
| 133 | ␉␉␉r1 = map->mode_table[i].resolution;␊ |
| 134 | ␉␉}␊ |
| 135 | ␉␉else {␊ |
| 136 | ␉␉␉if (map->mode_table[i].resolution <= r2) {␊ |
| 137 | ␉␉␉␉r2 = map->mode_table[i].resolution;␊ |
| 138 | ␉␉␉}␊ |
| 139 | ␉␉}␊ |
| 140 | ␉␉␊ |
| 141 | ␉␉/*printf("r1 = %d r2 = %d\n", r1, r2);*/␊ |
| 142 | ␉}␊ |
| 143 | ␊ |
| 144 | ␉return (r2-r1-6) % entry_size == 0;␊ |
| 145 | }␊ |
| 146 | ␊ |
| 147 | void close_vbios(vbios_map * map);␊ |
| 148 | ␊ |
| 149 | vbios_map * open_vbios(chipset_type forced_chipset) {␊ |
| 150 | ␉UInt32 z;␊ |
| 151 | ␉vbios_map * map = NEW(vbios_map);␊ |
| 152 | ␉for(z=0; z<sizeof(vbios_map); z++) ((char*)map)[z]=0;␊ |
| 153 | ␉/*␊ |
| 154 | ␉ * Determine chipset␊ |
| 155 | ␉␉ + */␊ |
| 156 | ␉␊ |
| 157 | ␉if (forced_chipset == CT_UNKWN) {␊ |
| 158 | ␉␉map->chipset_id = get_chipset_id();␊ |
| 159 | ␉␉map->chipset = get_chipset(map->chipset_id);␊ |
| 160 | ␉}␊ |
| 161 | ␉else if (forced_chipset != CT_UNKWN) {␊ |
| 162 | ␉␉map->chipset = forced_chipset;␊ |
| 163 | ␉}␊ |
| 164 | ␉else {␊ |
| 165 | ␉␉map->chipset = CT_915GM;␊ |
| 166 | ␉}␊ |
| 167 | ␉ ␊ |
| 168 | ␉/*␊ |
| 169 | ␉ * Map the video bios to memory␊ |
| 170 | ␉ */␊ |
| 171 | ␉␊ |
| 172 | ␉map->bios_ptr=(char*)VBIOS_START;␊ |
| 173 | ␉␊ |
| 174 | ␉/*␊ |
| 175 | ␉ * check if we have ATI Radeon␊ |
| 176 | ␉ */␊ |
| 177 | ␉ ␊ |
| 178 | ␉/*if (memmem(map->bios_ptr, VBIOS_SIZE, ATI_SIGNATURE1, strlen(ATI_SIGNATURE1)) ||␊ |
| 179 | ␉␉memmem(map->bios_ptr, VBIOS_SIZE, ATI_SIGNATURE2, strlen(ATI_SIGNATURE2)) ) {␊ |
| 180 | ␉␉printf(stderr, "ATI chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\n");␊ |
| 181 | ␉␉return 0;␊ |
| 182 | ␉}*/␊ |
| 183 | ␉␊ |
| 184 | ␉/*␊ |
| 185 | ␉ * check if we have NVIDIA␊ |
| 186 | ␉ */␊ |
| 187 | ␉ ␊ |
| 188 | ␉/*if (memmem(map->bios_ptr, VBIOS_SIZE, NVIDIA_SIGNATURE, strlen(NVIDIA_SIGNATURE))) {␊ |
| 189 | ␉␉printf("NVIDIA chipset detected. 915resolution only works with Intel 800/900 series graphic chipsets.\n");␊ |
| 190 | ␉␉return 0;␊ |
| 191 | ␉}*/␊ |
| 192 | ␉␊ |
| 193 | ␉/*␊ |
| 194 | ␉ * check if we have Intel␊ |
| 195 | ␉ */␊ |
| 196 | ␉ ␊ |
| 197 | ␉/*if (map->chipset == CT_UNKWN && memmem(map->bios_ptr, VBIOS_SIZE, INTEL_SIGNATURE, strlen(INTEL_SIGNATURE))) {␊ |
| 198 | ␉␉printf( "Intel chipset detected. However, 915resolution was unable to determine the chipset type.\n");␊ |
| 199 | ␉␊ |
| 200 | ␉␉printf("Chipset Id: %x\n", map->chipset_id);␊ |
| 201 | ␉␉␊ |
| 202 | ␉␉printf("Please report this problem to stomljen@yahoo.com\n");␊ |
| 203 | ␉␉␊ |
| 204 | ␉␉␉close_vbios(map);␊ |
| 205 | ␉␉␉return 0;␊ |
| 206 | ␉␉}*/␊ |
| 207 | ␉␊ |
| 208 | ␉␉/*␊ |
| 209 | ␉␉ * check for others␊ |
| 210 | ␉␉ */␊ |
| 211 | ␉␊ |
| 212 | ␉if (map->chipset == CT_UNKWN) {␊ |
| 213 | ␉␉/*␊ |
| 214 | ␉␉printf("Unknown chipset type and unrecognized bios.\n");␊ |
| 215 | ␉␉ ␊ |
| 216 | ␉␉printf("915resolution only works with Intel 800/900 series graphic chipsets.\n");␊ |
| 217 | ␉␉*/␊ |
| 218 | ␉␉printf("Chipset Id: %x\n", map->chipset_id);␊ |
| 219 | ␉␉close_vbios(map);␊ |
| 220 | ␉␉return 0;␊ |
| 221 | ␉}␊ |
| 222 | ␊ |
| 223 | ␉/*␊ |
| 224 | ␉ * Figure out where the mode table is ␊ |
| 225 | ␉ */␊ |
| 226 | ␉␊ |
| 227 | ␉{␊ |
| 228 | ␉␉char* p = map->bios_ptr + 16;␊ |
| 229 | ␉␉char* limit = map->bios_ptr + VBIOS_SIZE - (3 * sizeof(vbios_mode));␊ |
| 230 | ␉␉␉␊ |
| 231 | ␉␉while (p < limit && map->mode_table == 0) {␊ |
| 232 | ␉␉␉vbios_mode * mode_ptr = (vbios_mode *) p;␊ |
| 233 | ␉␉␉ ␊ |
| 234 | ␉␉␉if (((mode_ptr[0].mode & 0xf0) == 0x30) && ((mode_ptr[1].mode & 0xf0) == 0x30) &&␊ |
| 235 | ␉␉␉␉((mode_ptr[2].mode & 0xf0) == 0x30) && ((mode_ptr[3].mode & 0xf0) == 0x30)) {␊ |
| 236 | ␉␉␉␊ |
| 237 | ␉␉␉␉map->mode_table = mode_ptr;␊ |
| 238 | ␉␉␉}␊ |
| 239 | ␉␉␉ ␊ |
| 240 | ␉␉␉p++;␊ |
| 241 | ␉␉}␊ |
| 242 | ␉␉␊ |
| 243 | ␉␉if (map->mode_table == 0) {␊ |
| 244 | ␉␉␉printf("Unable to locate the mode table.\n");␊ |
| 245 | ␉␉␉printf("Please run the program 'dump_bios' as root and\n");␊ |
| 246 | ␉␉␉printf("email the file 'vbios.dmp' to stomljen@yahoo.com.\n");␊ |
| 247 | ␉␉␉printf("Chipset: %s\n", chipset_type_names[map->chipset]);␊ |
| 248 | ␉␉␉close_vbios(map);␊ |
| 249 | ␉␉␉return 0;␊ |
| 250 | ␉␉}␊ |
| 251 | ␉}␊ |
| 252 | ␉␊ |
| 253 | ␉/*␊ |
| 254 | ␉ * Determine size of mode table␊ |
| 255 | ␉ */␊ |
| 256 | ␉ ␊ |
| 257 | ␉{␊ |
| 258 | ␉␉vbios_mode * mode_ptr = map->mode_table;␊ |
| 259 | ␉␉␉␊ |
| 260 | ␉␉while (mode_ptr->mode != 0xff) {␊ |
| 261 | ␉␉␉map->mode_table_size++;␊ |
| 262 | ␉␉␉mode_ptr++;␊ |
| 263 | ␉␉}␊ |
| 264 | ␉}␊ |
| 265 | ␉␊ |
| 266 | ␉/*␊ |
| 267 | ␉ * Figure out what type of bios we have␊ |
| 268 | ␉ * order of detection is important␊ |
| 269 | ␉ */␊ |
| 270 | ␉␊ |
| 271 | ␉if (detect_bios_type(map, TRUE, sizeof(vbios_modeline_type3))) {␊ |
| 272 | ␉␉map->bios = BT_3;␊ |
| 273 | ␉}␊ |
| 274 | ␉else if (detect_bios_type(map, TRUE, sizeof(vbios_modeline_type2))) {␊ |
| 275 | ␉␉map->bios = BT_2;␊ |
| 276 | ␉}␊ |
| 277 | ␉else if (detect_bios_type(map, FALSE, sizeof(vbios_resolution_type1))) {␊ |
| 278 | ␉␉map->bios = BT_1;␊ |
| 279 | ␉}␊ |
| 280 | ␉else {␊ |
| 281 | ␉␉printf("Unable to determine bios type.\n");␊ |
| 282 | ␉␉printf("Please run the program 'dump_bios' as root and\n");␊ |
| 283 | ␉␉printf("email the file 'vbios.dmp' to stomljen@yahoo.com.\n");␊ |
| 284 | ␉␊ |
| 285 | ␉␉printf("Chipset: %s\n", chipset_type_names[map->chipset]);␊ |
| 286 | ␉␉printf("Mode Table Offset: $C0000 + $%x\n", ((UInt32)map->mode_table) - ((UInt32)map->bios_ptr));␊ |
| 287 | ␉␉␊ |
| 288 | ␉␉printf("Mode Table Entries: %u\n", map->mode_table_size);␊ |
| 289 | ␉␉return 0;␊ |
| 290 | ␉}␊ |
| 291 | ␉␊ |
| 292 | ␉return map;␊ |
| 293 | }␊ |
| 294 | ␊ |
| 295 | void close_vbios(vbios_map * map) {␊ |
| 296 | ␉FREE(map);␊ |
| 297 | }␊ |
| 298 | ␊ |
| 299 | void unlock_vbios(vbios_map * map) {␊ |
| 300 | ␊ |
| 301 | ␉map->unlocked = TRUE;␊ |
| 302 | ␉ ␊ |
| 303 | ␉switch (map->chipset) {␊ |
| 304 | ␉␉case CT_UNKWN:␊ |
| 305 | ␉␉␉break;␊ |
| 306 | ␉␉case CT_830:␊ |
| 307 | ␉␉case CT_855GM:␊ |
| 308 | ␉␉␉outl(0xcf8, 0x8000005a);␊ |
| 309 | ␉␉␉map->b1 = inb(0xcfe);␊ |
| 310 | ␉␉␉␉␊ |
| 311 | ␉␉␉outl(0xcf8, 0x8000005a);␊ |
| 312 | ␉␉␉outb(0xcfe, 0x33);␊ |
| 313 | ␉␉␉break;␊ |
| 314 | ␉␉case CT_845G:␊ |
| 315 | ␉␉case CT_865G:␊ |
| 316 | ␉␉case CT_915G:␊ |
| 317 | ␉␉case CT_915GM:␊ |
| 318 | ␉␉case CT_945G:␊ |
| 319 | ␉␉case CT_945GM:␊ |
| 320 | ␉␉case CT_945GME:␊ |
| 321 | ␉␉case CT_946GZ:␊ |
| 322 | ␉␉case CT_G965:␊ |
| 323 | ␉␉case CT_Q965:␊ |
| 324 | ␉␉case CT_965GM:␊ |
| 325 | ␉␉case CT_500:␊ |
| 326 | ␊ |
| 327 | ␉␉␉outl(0xcf8, 0x80000090);␊ |
| 328 | ␉␉␉map->b1 = inb(0xcfd);␊ |
| 329 | ␉␉␉map->b2 = inb(0xcfe);␊ |
| 330 | ␉␉␉outl(0xcf8, 0x80000090);␊ |
| 331 | ␉␉␉outb(0xcfd, 0x33);␊ |
| 332 | ␉␉␉outb(0xcfe, 0x33);␊ |
| 333 | ␉␉break;␊ |
| 334 | ␉}␊ |
| 335 | ␉␊ |
| 336 | ␉#if DEBUG␊ |
| 337 | ␉{␊ |
| 338 | ␉␉UInt32 t = inl(0xcfc);␊ |
| 339 | ␉␉printf("unlock PAM: (0x%08x)\n", t);␊ |
| 340 | ␉}␊ |
| 341 | #endif␊ |
| 342 | }␊ |
| 343 | ␊ |
| 344 | void relock_vbios(vbios_map * map) {␊ |
| 345 | ␊ |
| 346 | ␉map->unlocked = FALSE;␊ |
| 347 | ␉␊ |
| 348 | ␉switch (map->chipset) {␊ |
| 349 | ␉␉case CT_UNKWN:␊ |
| 350 | ␉␉␉break;␊ |
| 351 | ␉␉case CT_830:␊ |
| 352 | ␉␉case CT_855GM:␊ |
| 353 | ␉␉␉outl(0xcf8, 0x8000005a);␊ |
| 354 | ␉␉␉outb(0xcfe, map->b1);␊ |
| 355 | ␉␉␉break;␊ |
| 356 | ␉␉case CT_845G:␊ |
| 357 | ␉␉␉case CT_865G:␊ |
| 358 | ␉␉␉case CT_915G:␊ |
| 359 | ␉␉␉case CT_915GM:␊ |
| 360 | ␉␉␉case CT_945G:␊ |
| 361 | ␉␉␉case CT_945GM:␊ |
| 362 | ␉␉␉case CT_945GME:␊ |
| 363 | ␉␉␉case CT_946GZ:␊ |
| 364 | ␉␉␉case CT_G965:␊ |
| 365 | ␉␉␉case CT_Q965:␊ |
| 366 | ␉␉␉case CT_965GM:␊ |
| 367 | ␉␉␉case CT_500:␊ |
| 368 | ␊ |
| 369 | ␉␉␉␉outl(0xcf8, 0x80000090);␊ |
| 370 | ␉␉␉␉outb(0xcfd, map->b1);␊ |
| 371 | ␉␉␉␉outb(0xcfe, map->b2);␊ |
| 372 | ␉␉␉break;␊ |
| 373 | ␉}␊ |
| 374 | ␉␊ |
| 375 | ␉#if DEBUG␊ |
| 376 | ␉{␊ |
| 377 | UInt32 t = inl(0xcfc);␊ |
| 378 | ␉␉printf("relock PAM: (0x%08x)\n", t);␊ |
| 379 | ␉}␊ |
| 380 | ␉#endif␊ |
| 381 | }␊ |
| 382 | ␊ |
| 383 | ␊ |
| 384 | static void gtf_timings(UInt32 x, UInt32 y, UInt32 freq,␊ |
| 385 | ␉␉␉␉␉␉unsigned long *clock,␊ |
| 386 | ␉␉␉␉␉␉UInt16 *hsyncstart, UInt16 *hsyncend, UInt16 *hblank,␊ |
| 387 | ␉␉␉␉␉␉UInt16 *vsyncstart, UInt16 *vsyncend, UInt16 *vblank)␊ |
| 388 | {␊ |
| 389 | ␉UInt32 hbl, vbl, vfreq;␊ |
| 390 | ␊ |
| 391 | ␉vbl = y + (y+1)/(20000.0/(11*freq) - 1) + 1.5;␊ |
| 392 | ␉vfreq = vbl * freq;␊ |
| 393 | ␉hbl = 16 * (int)(x * (30.0 - 300000.0 / vfreq) /␊ |
| 394 | ␉␉␉␉␉␉ + (70.0 + 300000.0 / vfreq) / 16.0 + 0.5);␊ |
| 395 | ␊ |
| 396 | ␉*vsyncstart = y;␊ |
| 397 | ␉*vsyncend = y + 3;␊ |
| 398 | ␉*vblank = vbl - 1;␊ |
| 399 | ␉*hsyncstart = x + hbl / 2 - (x + hbl + 50) / 100 * 8 - 1;␊ |
| 400 | ␉*hsyncend = x + hbl / 2 - 1;␊ |
| 401 | ␉*hblank = x + hbl - 1;␊ |
| 402 | ␉*clock = (x + hbl) * vfreq / 1000;␊ |
| 403 | }␊ |
| 404 | ␊ |
| 405 | void set_mode(vbios_map * map, /*UInt32 mode,*/ UInt32 x, UInt32 y, UInt32 bp, UInt32 htotal, UInt32 vtotal) {␊ |
| 406 | ␉UInt32 xprev, yprev;␊ |
| 407 | ␉UInt32 i = 0, j;␉// patch first available mode␊ |
| 408 | ␊ |
| 409 | //␉for (i=0; i < map->mode_table_size; i++) {␊ |
| 410 | //␉␉if (map->mode_table[0].mode == mode) {␊ |
| 411 | ␉␉␉switch(map->bios) {␊ |
| 412 | ␉␉␉␉case BT_1:␊ |
| 413 | ␉␉␉␉␉{␊ |
| 414 | ␉␉␉␉␉␉vbios_resolution_type1 * res = map_type1_resolution(map, map->mode_table[i].resolution);␊ |
| 415 | ␉␉␉␉␉␉␊ |
| 416 | ␉␉␉␉␉␉if (bp) {␊ |
| 417 | ␉␉␉␉␉␉␉map->mode_table[i].bits_per_pixel = bp;␊ |
| 418 | ␉␉␉␉␉␉}␊ |
| 419 | ␉␉␉␉␉␉␊ |
| 420 | ␉␉␉␉␉␉res->x2 = (htotal?(((htotal-x) >> 8) & 0x0f) : (res->x2 & 0x0f)) | ((x >> 4) & 0xf0);␊ |
| 421 | ␉␉␉␉␉␉res->x1 = (x & 0xff);␊ |
| 422 | ␉␉␉␉␉␉␊ |
| 423 | ␉␉␉␉␉␉res->y2 = (vtotal?(((vtotal-y) >> 8) & 0x0f) : (res->y2 & 0x0f)) | ((y >> 4) & 0xf0);␊ |
| 424 | ␉␉␉␉␉␉res->y1 = (y & 0xff);␊ |
| 425 | ␉␉␉␉␉␉if (htotal)␊ |
| 426 | ␉␉␉␉␉␉␉res->x_total = ((htotal-x) & 0xff);␊ |
| 427 | ␉␉␉␉␉␉␊ |
| 428 | ␉␉␉␉␉␉if (vtotal)␊ |
| 429 | ␉␉␉␉␉␉␉res->y_total = ((vtotal-y) & 0xff);␊ |
| 430 | ␉␉␉␉␉}␊ |
| 431 | ␉␉␉␉␉break;␊ |
| 432 | ␉␉␉␉case BT_2:␊ |
| 433 | ␉␉␉␉␉{␊ |
| 434 | ␉␉␉␉␉␉vbios_resolution_type2 * res = map_type2_resolution(map, map->mode_table[i].resolution);␊ |
| 435 | ␉␉␉␉␉␉␊ |
| 436 | ␉␉␉␉␉␉res->xchars = x / 8;␊ |
| 437 | ␉␉␉␉␉␉res->ychars = y / 16 - 1;␊ |
| 438 | ␉␉␉␉␉␉xprev = res->modelines[0].x1;␊ |
| 439 | ␉␉␉␉␉␉yprev = res->modelines[0].y1;␊ |
| 440 | ␉␉␉␉␉␉␊ |
| 441 | ␉␉␉␉␉␉for(j=0; j < 3; j++) {␊ |
| 442 | ␉␉␉␉␉␉␉vbios_modeline_type2 * modeline = &res->modelines[j];␊ |
| 443 | ␉␉␉␉␉␉␉␊ |
| 444 | ␉␉␉␉␉␉␉if (modeline->x1 == xprev && modeline->y1 == yprev) {␊ |
| 445 | ␉␉␉␉␉␉␉␉modeline->x1 = modeline->x2 = x-1;␊ |
| 446 | ␉␉␉␉␉␉␉␉modeline->y1 = modeline->y2 = y-1;␊ |
| 447 | ␉␉␉␉␊ |
| 448 | ␉␉␉␉␉␉␉␉gtf_timings(x, y, freqs[j], &modeline->clock,␊ |
| 449 | ␉␉␉␉␉␉␉␉␉␉␉&modeline->hsyncstart, &modeline->hsyncend,␊ |
| 450 | ␉␉␉␉␉␉␉␉␉␉␉&modeline->hblank, &modeline->vsyncstart,␊ |
| 451 | ␉␉␉␉␉␉␉␉␉␉␉&modeline->vsyncend, &modeline->vblank);␊ |
| 452 | ␉␉␉␉␉␉␉␉␊ |
| 453 | ␉␉␉␉␉␉␉␉if (htotal)␊ |
| 454 | ␉␉␉␉␉␉␉␉␉modeline->htotal = htotal;␊ |
| 455 | ␉␉␉␉␉␉␉␉else␊ |
| 456 | ␉␉␉␉␉␉␉␉␉modeline->htotal = modeline->hblank;␊ |
| 457 | ␉␉␉␉␉␉␉␉␊ |
| 458 | ␉␉␉␉␉␉␉␉if (vtotal)␊ |
| 459 | ␉␉␉␉␉␉␉␉␉modeline->vtotal = vtotal;␊ |
| 460 | ␉␉␉␉␉␉␉␉else␊ |
| 461 | ␉␉␉␉␉␉␉␉␉modeline->vtotal = modeline->vblank;␊ |
| 462 | ␉␉␉␉␉␉␉}␊ |
| 463 | ␉␉␉␉␉␉}␊ |
| 464 | ␉␉␉␉␉}␊ |
| 465 | ␉␉␉␉␉break;␊ |
| 466 | ␉␉␉␉case BT_3:␊ |
| 467 | ␉␉␉␉␉{␊ |
| 468 | ␉␉␉␉␉␉vbios_resolution_type3 * res = map_type3_resolution(map, map->mode_table[i].resolution);␊ |
| 469 | ␉␉␉␉␉␉␊ |
| 470 | ␉␉␉␉␉␉xprev = res->modelines[0].x1;␊ |
| 471 | ␉␉␉␉␉␉yprev = res->modelines[0].y1;␊ |
| 472 | ␉␉␉␉␊ |
| 473 | ␉␉␉␉␉␉for (j=0; j < 3; j++) {␊ |
| 474 | ␉␉␉␉␉␉␉vbios_modeline_type3 * modeline = &res->modelines[j];␊ |
| 475 | ␉␉␉␉␉␉␉ ␊ |
| 476 | ␉␉␉␉␉␉␉if (modeline->x1 == xprev && modeline->y1 == yprev) {␊ |
| 477 | ␉␉␉␉␉␉␉␉modeline->x1 = modeline->x2 = x-1;␊ |
| 478 | ␉␉␉␉␉␉␉␉modeline->y1 = modeline->y2 = y-1;␊ |
| 479 | ␉␉␉␉␉␉␉␉ ␊ |
| 480 | ␉␉␉␉␉␉␉␉gtf_timings(x, y, freqs[j], &modeline->clock,␊ |
| 481 | ␉␉␉␉␉␉␉␉␉␉␉&modeline->hsyncstart, &modeline->hsyncend,␊ |
| 482 | ␉␉␉␉␉␉␉␉␉␉␉&modeline->hblank, &modeline->vsyncstart,␊ |
| 483 | ␉␉␉␉␉␉␉␉␉␉␉&modeline->vsyncend, &modeline->vblank);␊ |
| 484 | ␉␉␉␉␉␉␉␉if (htotal)␊ |
| 485 | ␉␉␉␉␉␉␉␉␉modeline->htotal = htotal;␊ |
| 486 | ␉␉␉␉␉␉␉␉else␊ |
| 487 | ␉␉␉␉␉␉␉␉␉modeline->htotal = modeline->hblank;␊ |
| 488 | ␉␉␉␉␉␉␉␉if (vtotal)␊ |
| 489 | ␉␉␉␉␉␉␉␉␉modeline->vtotal = vtotal;␊ |
| 490 | ␉␉␉␉␉␉␉␉else␊ |
| 491 | ␉␉␉␉␉␉␉␉␉modeline->vtotal = modeline->vblank;␊ |
| 492 | ␉␉␉␉␉␉␊ |
| 493 | ␉␉␉␉␉␉␉␉modeline->timing_h = y-1;␊ |
| 494 | ␉␉␉␉␉␉␉␉modeline->timing_v = x-1;␊ |
| 495 | ␉␉␉␉␉␉␉}␊ |
| 496 | ␉␉␉␉␉␉}␊ |
| 497 | ␉␉␉␉␉}␊ |
| 498 | ␉␉␉␉␉break;␊ |
| 499 | ␉␉␉␉case BT_UNKWN:␊ |
| 500 | ␉␉␉␉␉break;␊ |
| 501 | ␉␉␉}␊ |
| 502 | //␉␉}␊ |
| 503 | //␉}␊ |
| 504 | } ␊ |
| 505 | ␊ |
| 506 | void display_map_info(vbios_map * map) {␊ |
| 507 | ␉printf("Chipset: %s\n", chipset_type_names[map->chipset]);␊ |
| 508 | ␉printf("BIOS: %s\n", bios_type_names[map->bios]);␊ |
| 509 | ␉␊ |
| 510 | ␉printf("Mode Table Offset: $C0000 + $%x\n", ((UInt32)map->mode_table) - ((UInt32)map->bios_ptr));␊ |
| 511 | ␉printf("Mode Table Entries: %u\n", map->mode_table_size);␊ |
| 512 | }␊ |
| 513 | ␊ |
| 514 | /*␊ |
| 515 | int parse_args(int argc, char *argv[], chipset_type *forced_chipset, UInt32 *list, UInt32 *mode, UInt32 *x, UInt32 *y, UInt32 *bp, UInt32 *raw, UInt32 *htotal, UInt32 *vtotal) {␊ |
| 516 | ␉UInt32 index = 0;␊ |
| 517 | ␉␊ |
| 518 | ␉*list = *mode = *x = *y = *raw = *htotal = *vtotal = 0;␊ |
| 519 | ␊ |
| 520 | ␉*forced_chipset = CT_UNKWN;␊ |
| 521 | ␉␊ |
| 522 | ␉if ((argc > index) && !strcmp(argv[index], "-c")) {␊ |
| 523 | ␉␉index++;␊ |
| 524 | ␉␉+␊ |
| 525 | ␉␉+ if(argc<=index) {␊ |
| 526 | ␉␉␉+ return 0;␊ |
| 527 | ␉␉␉+ }␊ |
| 528 | ␉␉+ ␊ |
| 529 | ␉␉+ if (!strcmp(argv[index], "845")) {␊ |
| 530 | ␉␉␉+ *forced_chipset = CT_845G;␊ |
| 531 | ␉␉␉+ }␊ |
| 532 | ␉␉+ else if (!strcmp(argv[index], "855")) {␊ |
| 533 | ␉␉␉+ *forced_chipset = CT_855GM;␊ |
| 534 | ␉␉␉+ }␊ |
| 535 | ␉␉+ else if (!strcmp(argv[index], "865")) {␊ |
| 536 | ␉␉␉+ *forced_chipset = CT_865G;␊ |
| 537 | ␉␉␉+ }␊ |
| 538 | ␉␉+ else if (!strcmp(argv[index], "915G")) {␊ |
| 539 | ␉␉␉+ *forced_chipset = CT_915G;␊ |
| 540 | ␉␉␉+ }␊ |
| 541 | ␉␉+ else if (!strcmp(argv[index], "915GM")) {␊ |
| 542 | ␉␉␉+ *forced_chipset = CT_915GM;␊ |
| 543 | ␉␉␉+ }␊ |
| 544 | ␉␉+ else if (!strcmp(argv[index], "945G")) {␊ |
| 545 | ␉␉␉+ *forced_chipset = CT_945G;␊ |
| 546 | ␉␉␉+ }␊ |
| 547 | ␉␉+ else if (!strcmp(argv[index], "945GM")) {␊ |
| 548 | ␉␉␉+ *forced_chipset = CT_945GM;␊ |
| 549 | ␉␉␉+ }␊ |
| 550 | ␉␉+ else if (!strcmp(argv[index], "945GME")) {␊ |
| 551 | ␉␉␉+ *forced_chipset = CT_945GME;␊ |
| 552 | ␉␉␉+ }␊ |
| 553 | ␉␉+ else if (!strcmp(argv[index], "946GZ")) {␊ |
| 554 | ␉␉␉+ *forced_chipset = CT_946GZ;␊ |
| 555 | ␉␉␉+ }␊ |
| 556 | ␉␉+ else if (!strcmp(argv[index], "G965")) {␊ |
| 557 | ␉␉␉+ *forced_chipset = CT_G965;␊ |
| 558 | ␉␉␉+ }␊ |
| 559 | ␉␉+ else if (!strcmp(argv[index], "Q965")) {␊ |
| 560 | ␉␉␉+ *forced_chipset = CT_Q965;␊ |
| 561 | ␉␉␉+ }␊ |
| 562 | ␉␉+ else if (!strcmp(argv[index], "500")) {␊ |
| 563 | ␉␉␉+ *forced_chipset = CT_500;␊ |
| 564 | ␉␉␉+ }␊ |
| 565 | ␉␉␊ |
| 566 | ␉␉+ else {␊ |
| 567 | ␉␉␉+␉ printf("No match for forced chipset: %s\n", argv[index]);␊ |
| 568 | ␉␉␉+ *forced_chipset = CT_UNKWN;␊ |
| 569 | ␉␉␉+ }␊ |
| 570 | ␉␉+ ␊ |
| 571 | ␉␉+ index++;␊ |
| 572 | ␉␉+ ␊ |
| 573 | ␉␉+ if (argc<=index) {␊ |
| 574 | ␉␉␉+ return 0;␊ |
| 575 | ␉␉␉+ }␊ |
| 576 | ␉␉+ }␊ |
| 577 | ␉+␊ |
| 578 | ␉+ if ((argc > index) && !strcmp(argv[index], "-l")) {␊ |
| 579 | ␉␉+ *list = 1;␊ |
| 580 | ␉␉+ index++;␊ |
| 581 | ␉␉+␊ |
| 582 | ␉␉+ if(argc<=index) {␊ |
| 583 | ␉␉␉+ return 0;␊ |
| 584 | ␉␉␉+ }␊ |
| 585 | ␉␉+ }␊ |
| 586 | ␉+ ␊ |
| 587 | ␉+ if ((argc > index) && !strcmp(argv[index], "-r")) {␊ |
| 588 | ␉␉+ *raw = 1;␊ |
| 589 | ␉␉+ index++;␊ |
| 590 | ␉␉+␊ |
| 591 | ␉␉+ if(argc<=index) {␊ |
| 592 | ␉␉␉+ return 0;␊ |
| 593 | ␉␉␉+ }␊ |
| 594 | ␉␉+ }␊ |
| 595 | ␉+ ␊ |
| 596 | ␉+ if (argc-index < 3 || argc-index > 6) {␊ |
| 597 | ␉␉+ return -1;␊ |
| 598 | ␉␉+ }␊ |
| 599 | ␉+␊ |
| 600 | ␉+ *mode = (UInt32) strtoul(argv[index], NULL, 16);␊ |
| 601 | ␉+ *x = (UInt32)strtoul(argv[index+1], NULL, 10);␊ |
| 602 | ␉+ *y = (UInt32)strtoul(argv[index+2], NULL, 10);␊ |
| 603 | ␉+␊ |
| 604 | ␉+␊ |
| 605 | ␉+ if (argc-index > 3) {␊ |
| 606 | ␉␉+ *bp = (UInt32)strtoul(argv[index+3], NULL, 10);␊ |
| 607 | ␉␉+ }␊ |
| 608 | ␉+ else {␊ |
| 609 | ␉␉+ *bp = 0;␊ |
| 610 | ␉␉+ }␊ |
| 611 | ␉+ ␊ |
| 612 | ␉+ if (argc-index > 4) {␊ |
| 613 | ␉␉+ *htotal = (UInt32)strtoul(argv[index+4], NULL, 10);␊ |
| 614 | ␉␉+ }␊ |
| 615 | ␉+ else {␊ |
| 616 | ␉␉+ *htotal = 0;␊ |
| 617 | ␉␉+ }␊ |
| 618 | ␉+␊ |
| 619 | ␉+ if (argc-index > 5) {␊ |
| 620 | ␉␉+ *vtotal = (UInt32)strtoul(argv[index+5], NULL, 10);␊ |
| 621 | ␉␉+ }␊ |
| 622 | ␉+ else {␊ |
| 623 | ␉␉+ *vtotal = 0;␊ |
| 624 | ␉␉+ }␊ |
| 625 | ␉+ ␊ |
| 626 | ␉+ return 0;␊ |
| 627 | ␉+}␊ |
| 628 | +␊ |
| 629 | ␊ |
| 630 | ␊ |
| 631 | */␊ |
| 632 | ␊ |
| 633 | ␊ |
| 634 | void list_modes(vbios_map *map, UInt32 raw) {␊ |
| 635 | UInt32 i, x, y;␊ |
| 636 | ␉␊ |
| 637 | for (i=0; i < map->mode_table_size; i++) {␊ |
| 638 | switch(map->bios) {␊ |
| 639 | ␉␉␉case BT_1:␊ |
| 640 | {␊ |
| 641 | vbios_resolution_type1 * res = map_type1_resolution(map, map->mode_table[i].resolution);␊ |
| 642 | ␊ |
| 643 | x = ((((UInt32) res->x2) & 0xf0) << 4) | res->x1;␊ |
| 644 | y = ((((UInt32) res->y2) & 0xf0) << 4) | res->y1;␊ |
| 645 | ␊ |
| 646 | if (x != 0 && y != 0) {␊ |
| 647 | printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel);␊ |
| 648 | }␊ |
| 649 | ␉␉␉␉␊ |
| 650 | ␉␉␉␉if (raw)␊ |
| 651 | ␉␉␉␉{␊ |
| 652 | 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);␊ |
| 653 | ␉␉␉␉}␊ |
| 654 | ␉␉␉␉␊ |
| 655 | }␊ |
| 656 | ␉␉␉␉break;␊ |
| 657 | ␉␉␉case BT_2:␊ |
| 658 | {␊ |
| 659 | vbios_resolution_type2 * res = map_type2_resolution(map, map->mode_table[i].resolution);␊ |
| 660 | ␊ |
| 661 | x = res->modelines[0].x1+1;␊ |
| 662 | y = res->modelines[0].y1+1;␊ |
| 663 | ␉␉␉␉␊ |
| 664 | if (x != 0 && y != 0) {␊ |
| 665 | printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel);␊ |
| 666 | }␊ |
| 667 | }␊ |
| 668 | ␉␉␉␉break;␊ |
| 669 | ␉␉␉case BT_3:␊ |
| 670 | {␊ |
| 671 | vbios_resolution_type3 * res = map_type3_resolution(map, map->mode_table[i].resolution);␊ |
| 672 | ␊ |
| 673 | x = res->modelines[0].x1+1;␊ |
| 674 | y = res->modelines[0].y1+1;␊ |
| 675 | ␊ |
| 676 | if (x != 0 && y != 0) {␊ |
| 677 | printf("Mode %02x : %dx%d, %d bits/pixel\n", map->mode_table[i].mode, x, y, map->mode_table[i].bits_per_pixel);␊ |
| 678 | }␊ |
| 679 | }␊ |
| 680 | ␉␉␉␉break;␊ |
| 681 | ␉␉␉case BT_UNKWN:␊ |
| 682 | ␉␉␉␉break;␊ |
| 683 | }␊ |
| 684 | }␊ |
| 685 | }␊ |
| 686 | ␊ |
| 687 | ␊ |
| 688 | void usage() {␊ |
| 689 | ␉printf("Usage: 915resolution [-c chipset] [-l] [mode X Y] [bits/pixel] [htotal] [vtotal]\n");␊ |
| 690 | ␉printf(" Set the resolution to XxY for a video mode\n");␊ |
| 691 | ␉printf(" Bits per pixel are optional. htotal/vtotal settings are additionally optional.\n");␊ |
| 692 | ␉printf(" Options:\n");␊ |
| 693 | ␉printf(" -c force chipset type (THIS IS USED FOR DEBUG PURPOSES)\n");␊ |
| 694 | ␉printf(" -l display the modes found in the video BIOS\n");␊ |
| 695 | ␉printf(" -r display the modes found in the video BIOS in raw mode (THIS IS USED FOR DEBUG PURPOSES)\n");␊ |
| 696 | }␊ |
| 697 | ␊ |
| 698 | /*␊ |
| 699 | static err_t␊ |
| 700 | cmd_915resolution (struct arg_list *state ,␊ |
| 701 | ␉␉␉␉ int argc ,␊ |
| 702 | ␉␉␉␉ char **argv )␊ |
| 703 | {␊ |
| 704 | ␉vbios_map * map;␊ |
| 705 | ␉UInt32 list, mode, x, y, bp, raw, htotal, vtotal;␊ |
| 706 | ␉chipset_type forced_chipset;␊ |
| 707 | ␉␊ |
| 708 | ␉printf("Intel 500/800/900 Series VBIOS Hack : version %s\n\n", VERSION);␊ |
| 709 | ␊ |
| 710 | ␉if (parse_args(argc, argv, &forced_chipset, &list, &mode, &x, &y, &bp, &raw, &htotal, &vtotal) == -1) {␊ |
| 711 | ␉␉␉usage();␊ |
| 712 | ␉␉␉return 2;␊ |
| 713 | ␉␉}␊ |
| 714 | ␊ |
| 715 | ␉map = open_vbios(forced_chipset);␊ |
| 716 | ␉display_map_info(map);␊ |
| 717 | ␊ |
| 718 | ␉printf("\n");␊ |
| 719 | ␊ |
| 720 | ␉if (list) {␊ |
| 721 | ␉␉list_modes(map, raw);␊ |
| 722 | ␉}␊ |
| 723 | ␊ |
| 724 | ␉if (mode!=0 && x!=0 && y!=0) {␊ |
| 725 | ␉␉unlock_vbios(map);␊ |
| 726 | ␉␉␊ |
| 727 | ␉␉set_mode(map, mode, x, y, bp, htotal, vtotal);␊ |
| 728 | ␉␉␊ |
| 729 | ␉␉relock_vbios(map);␊ |
| 730 | ␉␉␊ |
| 731 | ␉␉printf("Patch mode %02x to resolution %dx%d complete\n", mode, x, y);␊ |
| 732 | ␉␉ ␊ |
| 733 | ␉␉if (list) {␊ |
| 734 | ␉␉␉list_modes(map, raw);␊ |
| 735 | ␉␉}␊ |
| 736 | ␉}␊ |
| 737 | ␉␊ |
| 738 | ␉close_vbios(map);␊ |
| 739 | ␉ ␊ |
| 740 | ␉return 0;␊ |
| 741 | }␊ |
| 742 | */␊ |
| 743 | |
