| 1 | /*␊ |
| 2 | * ati_resolution.c␊ |
| 3 | * ␊ |
| 4 | *␊ |
| 5 | * Created by Le Bidou on 19/03/10.␊ |
| 6 | * Copyright 2010 ---. All rights reserved.␊ |
| 7 | *␊ |
| 8 | */␊ |
| 9 | ␊ |
| 10 | #include "ati_resolution.h"␊ |
| 11 | ␊ |
| 12 | char detectAtiBiosType(sModeTable * table) {␉␊ |
| 13 | ␉return table->size % sizeof(atomModeTiming) == 0;␊ |
| 14 | }␊ |
| 15 | ␊ |
| 16 | ␊ |
| 17 | ␊ |
| 18 | vBiosMap * openAtiVbios(vBiosMap * map, atiBiosTables atiTables)␊ |
| 19 | {␊ |
| 20 | ␉/*␊ |
| 21 | ␉ * Locate the Standard VESA Table␊ |
| 22 | ␉ */␊ |
| 23 | ␉␊ |
| 24 | ␉atiTables.masterDataTables = (uint16_t *) &((atomMasterDataTable *) (map->biosPtr + atiTables.atomRomHeader->masterDataTableOffset))->listOfDataTables;␊ |
| 25 | ␉uint16_t stdVesaOffset = (uint16_t) ((atomMasterListOfDataTables *)atiTables.masterDataTables)->StandardVESA_Timing;␊ |
| 26 | ␉atomStandardVesaTiming * stdVesa = (atomStandardVesaTiming *) (map->biosPtr + stdVesaOffset);␊ |
| 27 | ␉␊ |
| 28 | ␉// intialize the table chain with one element␊ |
| 29 | ␉sModeTable * table = intializeTables(map, 1);␊ |
| 30 | ␉␉␊ |
| 31 | ␉table->pointer = (uint8_t *)stdVesa + sizeof(atomCommonTableHeader);␊ |
| 32 | ␉PRINT("Standard VESA Table at offset * 0x%x\n", (uint8_t)(table->pointer - map->biosPtr));␊ |
| 33 | ␉if (table->pointer == 0) {␊ |
| 34 | ␉␉PRINT("Unable to locate the mode table.\n");␊ |
| 35 | ␉␉PRINT("Please run the program 'dump_bios' as root and\n");␊ |
| 36 | ␉␉PRINT("email the file 'vbios.dmp' to gaeloulacuisse@yahoo.fr.\n");␊ |
| 37 | ␉␉␊ |
| 38 | ␉␉closeVbios(map);␊ |
| 39 | ␉␉return 0;␊ |
| 40 | ␉}␊ |
| 41 | ␉␊ |
| 42 | ␉//Determine Size of the Table␊ |
| 43 | ␉table->size = stdVesa->header.structureSize - sizeof(atomCommonTableHeader);␊ |
| 44 | ␉␊ |
| 45 | ␉/*␊ |
| 46 | ␉ * Find out type of table and how many entries it has␊ |
| 47 | ␉ */␊ |
| 48 | ␉␊ |
| 49 | ␉if (!detectAtiBiosType(table)) map->bios = BT_ATI_2;␊ |
| 50 | ␉if (map->bios == BT_ATI_2) {␊ |
| 51 | ␉␉table->modeCount = table->size / sizeof(atomDtdFormat);␊ |
| 52 | ␉␉map->setMode = atiSetMode_2;␊ |
| 53 | ␉␉PRINT("Using DTD Format modelines\n");␊ |
| 54 | ␉} else {␊ |
| 55 | ␉␉table->modeCount = table->size / sizeof(atomModeTiming);␊ |
| 56 | ␉␉map->setMode = atiSetMode_1;␊ |
| 57 | ␉␉PRINT("Using Atom Mode Timing modelines\n");␊ |
| 58 | ␉}␊ |
| 59 | ␉saveTables(table);␊ |
| 60 | ␉return map;␊ |
| 61 | }␊ |
| 62 | ␊ |
| 63 | bool atiSetMode_1(sModeTable * table, uint8_t idx, uint32_t * x, uint32_t * y)␊ |
| 64 | {␊ |
| 65 | ␉atomModeTiming *modeTiming = (atomModeTiming *) table->pointer;␊ |
| 66 | ␉␊ |
| 67 | ␉// patch only if mode differs␊ |
| 68 | ␉if ((*x != modeTiming[idx].hActive) || (*y != modeTiming[idx].vActive)) {␊ |
| 69 | ␉␉PRINT("Mode %dx%d -> ",modeTiming[idx].hActive, modeTiming[idx].vActive);␊ |
| 70 | ␉␉␊ |
| 71 | ␉␉modeTiming[idx].hActive = *x;␊ |
| 72 | ␉␉modeTiming[idx].vActive = *y;␊ |
| 73 | ␉␉␊ |
| 74 | ␉␉PRINT("%dx%d\n",modeTiming[idx].hActive, modeTiming[idx].vActive);␊ |
| 75 | ␉}␊ |
| 76 | ␉␊ |
| 77 | ␉// since only the first mode in table is patched, this is deprecated␊ |
| 78 | ␉*x = modeTiming[idx + 1].hActive;␊ |
| 79 | ␉*y = modeTiming[idx + 1].vActive;␊ |
| 80 | ␉␊ |
| 81 | ␉return TRUE;␊ |
| 82 | }␊ |
| 83 | ␊ |
| 84 | bool atiSetMode_2(sModeTable * table, uint8_t idx, uint32_t* x, uint32_t* y)␊ |
| 85 | {␊ |
| 86 | ␉atomDtdFormat *modeTiming = (atomDtdFormat *) table->pointer;␊ |
| 87 | ␉␊ |
| 88 | ␉// patch only if mode differs␊ |
| 89 | ␉if ((*x != modeTiming[idx].hActive) || (*y != modeTiming[idx].vActive)) {␊ |
| 90 | ␉␉␊ |
| 91 | ␉␉PRINT("Mode %dx%d -> ", modeTiming[idx].hActive, modeTiming[idx].vActive);␊ |
| 92 | ␉␉␊ |
| 93 | ␉␉modeTiming[idx].hActive = *x;␊ |
| 94 | ␉␉modeTiming[idx].vActive = *y;␊ |
| 95 | ␉␉␊ |
| 96 | ␉␉PRINT("%dx%d\n", modeTiming[idx].hActive, modeTiming[idx].vActive);␊ |
| 97 | ␉}␊ |
| 98 | ␉␊ |
| 99 | ␉// since only the first mode in table is patched, this is deprecated␊ |
| 100 | ␉*x = modeTiming[idx + 1].hActive;␊ |
| 101 | ␉*y = modeTiming[idx + 1].hActive;␊ |
| 102 | ␉␊ |
| 103 | ␉return TRUE;␊ |
| 104 | }␊ |
| 105 | |
