| 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 detect_ati_bios_type(vbios_map * map) {␉␊ |
| 13 | ␉return map->mode_table_size % sizeof(ATOM_MODE_TIMING) == 0;␊ |
| 14 | }␊ |
| 15 | ␊ |
| 16 | vbios_map * open_ati_vbios(vbios_map * map, bios_tables_t ati_tables)␊ |
| 17 | {␊ |
| 18 | ␉/*␊ |
| 19 | ␉ * Locate the Standard VESA Table␊ |
| 20 | ␉ */␊ |
| 21 | ␉␊ |
| 22 | ␉ati_tables.MasterDataTables = (unsigned short *) &((ATOM_MASTER_DATA_TABLE *) (map->bios_ptr + ati_tables.AtomRomHeader->usMasterDataTableOffset))->ListOfDataTables;␊ |
| 23 | ␉unsigned short std_vesa_offset = (unsigned short) ((ATOM_MASTER_LIST_OF_DATA_TABLES *)ati_tables.MasterDataTables)->StandardVESA_Timing;␊ |
| 24 | ␉ATOM_STANDARD_VESA_TIMING * std_vesa = (ATOM_STANDARD_VESA_TIMING *) (map->bios_ptr + std_vesa_offset);␊ |
| 25 | ␉␊ |
| 26 | ␉map->mode_table = (char *) &std_vesa->aModeTimings;␊ |
| 27 | ␉PRINT("Standard VESA Table at offset * 0x%x\n", std_vesa_offset);␊ |
| 28 | ␉if (map->mode_table == 0) {␊ |
| 29 | ␉␉PRINT("Unable to locate the mode table.\n");␊ |
| 30 | ␉␉PRINT("Please run the program 'dump_bios' as root and\n");␊ |
| 31 | ␉␉PRINT("email the file 'vbios.dmp' to gaeloulacuisse@yahoo.fr.\n");␊ |
| 32 | ␉␉␊ |
| 33 | ␉␉close_vbios(map);␊ |
| 34 | ␉␉return 0;␊ |
| 35 | ␉}␊ |
| 36 | ␉␊ |
| 37 | ␉//Determine Size of the Table␊ |
| 38 | ␉map->mode_table_size = std_vesa->sHeader.usStructureSize - sizeof(ATOM_COMMON_TABLE_HEADER);␊ |
| 39 | ␉␊ |
| 40 | ␉/*␊ |
| 41 | ␉ * Find out type of table and how many entries it has␊ |
| 42 | ␉ */␊ |
| 43 | ␉␊ |
| 44 | ␉if (!detect_ati_bios_type(map)) map->bios = BT_ATI_2;␊ |
| 45 | ␉if (map->bios == BT_ATI_2) {␊ |
| 46 | ␉␉map->modeline_num = map->mode_table_size / sizeof(ATOM_DTD_FORMAT);␊ |
| 47 | ␉␉PRINT("Using DTD Format modelines\n");␊ |
| 48 | ␉} else {␊ |
| 49 | ␉␉map->modeline_num = map->mode_table_size / sizeof(ATOM_MODE_TIMING);␊ |
| 50 | ␉␉PRINT("Using Atom Mode Timing modelines\n");␊ |
| 51 | ␉}␊ |
| 52 | ␉return map;␊ |
| 53 | }␊ |
| 54 | ␊ |
| 55 | bool ati_set_mode_1(vbios_map* map, UInt8 idx, UInt32* x, UInt32* y)␊ |
| 56 | {␊ |
| 57 | ␉ATOM_MODE_TIMING *mode_timing = (ATOM_MODE_TIMING *) map->mode_table;␊ |
| 58 | ␉␊ |
| 59 | ␉if ((*x != 0) && (*y != 0) && ( mode_timing[idx].usCRTC_H_Disp >= 640 )) {␊ |
| 60 | ␉␉␊ |
| 61 | ␉␉PRINT("Mode %dx%d -> %dx%d\n",mode_timing[idx].usCRTC_H_Disp,mode_timing[idx].usCRTC_V_Disp,␊ |
| 62 | ␉␉␉ *x, *y);␊ |
| 63 | ␉␉␊ |
| 64 | ␉␉mode_timing[idx].usCRTC_H_Disp = *x;␊ |
| 65 | ␉␉mode_timing[idx].usCRTC_V_Disp = *y;␊ |
| 66 | ␉}␊ |
| 67 | ␉␊ |
| 68 | ␉*x = mode_timing[idx + 1].usCRTC_H_Disp;␊ |
| 69 | ␉*y = mode_timing[idx + 1].usCRTC_V_Disp;␊ |
| 70 | ␉␊ |
| 71 | ␉return TRUE;␊ |
| 72 | }␊ |
| 73 | ␊ |
| 74 | bool ati_set_mode_2(vbios_map* map, UInt8 idx, UInt32* x, UInt32* y)␊ |
| 75 | {␊ |
| 76 | ␉ATOM_DTD_FORMAT *mode_timing = (ATOM_DTD_FORMAT *) map->mode_table;␊ |
| 77 | ␉␊ |
| 78 | ␉if ((*x != 0) && (*y != 0) && ( mode_timing[idx].usHActive >= 640 )) {␊ |
| 79 | ␉␉␊ |
| 80 | ␉␉PRINT("Mode %dx%d -> %dx%d\n", mode_timing[idx].usHActive, mode_timing[idx].usHActive,␊ |
| 81 | ␉␉␉ *x, *y);␊ |
| 82 | ␉␉␊ |
| 83 | ␉␉mode_timing[idx].usHActive = *x;␊ |
| 84 | ␉␉mode_timing[idx].usVActive = *y;␊ |
| 85 | ␉}␊ |
| 86 | ␉␊ |
| 87 | ␉*x = mode_timing[idx + 1].usHActive;␊ |
| 88 | ␉*y = mode_timing[idx + 1].usVActive;␊ |
| 89 | ␉␊ |
| 90 | ␉return TRUE;␊ |
| 91 | }␊ |
| 92 | |
