| 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 | #ifndef __915_RESOLUTION_H␊ |
| 17 | #define __915_RESOLUTION_H␊ |
| 18 | ␊ |
| 19 | #define NEW(a) ((a *)(malloc(sizeof(a))))␊ |
| 20 | #define FREE(a) (free(a))␊ |
| 21 | ␊ |
| 22 | #define VBIOS_START 0xc0000␊ |
| 23 | #define VBIOS_SIZE 0x10000␊ |
| 24 | ␊ |
| 25 | #define FALSE 0␊ |
| 26 | #define TRUE 1␊ |
| 27 | ␊ |
| 28 | #define MODE_TABLE_OFFSET_845G 617␊ |
| 29 | ␊ |
| 30 | ␊ |
| 31 | #define ATI_SIGNATURE1 "ATI MOBILITY RADEON"␊ |
| 32 | #define ATI_SIGNATURE2 "ATI Technologies Inc"␊ |
| 33 | #define NVIDIA_SIGNATURE "NVIDIA Corp"␊ |
| 34 | #define INTEL_SIGNATURE "Intel Corp"␊ |
| 35 | ␊ |
| 36 | ␊ |
| 37 | ␊ |
| 38 | ␊ |
| 39 | typedef enum {␊ |
| 40 | ␉CT_UNKWN, CT_830, CT_845G, CT_855GM, CT_865G, CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME,␊ |
| 41 | ␉CT_946GZ, CT_G965, CT_Q965, CT_965GM, CT_500␊ |
| 42 | } chipset_type;␊ |
| 43 | ␊ |
| 44 | ␊ |
| 45 | typedef enum {␊ |
| 46 | ␉BT_UNKWN, BT_1, BT_2, BT_3␊ |
| 47 | } bios_type;␊ |
| 48 | ␊ |
| 49 | ␊ |
| 50 | typedef struct {␊ |
| 51 | ␉UInt8 mode;␊ |
| 52 | ␉UInt8 bits_per_pixel;␊ |
| 53 | ␉UInt16 resolution;␊ |
| 54 | ␉UInt8 unknown;␊ |
| 55 | } __attribute__((packed)) vbios_mode;␊ |
| 56 | ␊ |
| 57 | typedef struct {␊ |
| 58 | ␉UInt8 unknow1[2];␊ |
| 59 | ␉UInt8 x1;␊ |
| 60 | ␉UInt8 x_total;␊ |
| 61 | ␉UInt8 x2;␊ |
| 62 | ␉UInt8 y1;␊ |
| 63 | ␉UInt8 y_total;␊ |
| 64 | ␉UInt8 y2;␊ |
| 65 | } __attribute__((packed)) vbios_resolution_type1;␊ |
| 66 | ␊ |
| 67 | typedef struct {␊ |
| 68 | ␉unsigned long clock;␊ |
| 69 | ␉␊ |
| 70 | ␉UInt16 x1;␊ |
| 71 | ␉UInt16 htotal;␊ |
| 72 | ␉UInt16 x2;␊ |
| 73 | ␉UInt16 hblank;␊ |
| 74 | ␉UInt16 hsyncstart;␊ |
| 75 | ␉UInt16 hsyncend;␊ |
| 76 | ␉UInt16 y1;␊ |
| 77 | UInt16 vtotal;␊ |
| 78 | UInt16 y2;␊ |
| 79 | ␉UInt16 vblank;␊ |
| 80 | ␉UInt16 vsyncstart;␊ |
| 81 | ␉UInt16 vsyncend;␊ |
| 82 | } __attribute__((packed)) vbios_modeline_type2;␊ |
| 83 | ␊ |
| 84 | typedef struct {␊ |
| 85 | ␉UInt8 xchars;␊ |
| 86 | ␉UInt8 ychars;␊ |
| 87 | ␉UInt8 unknown[4];␊ |
| 88 | ␉␊ |
| 89 | ␉vbios_modeline_type2 modelines[];␊ |
| 90 | } __attribute__((packed)) vbios_resolution_type2;␊ |
| 91 | ␊ |
| 92 | typedef struct {␊ |
| 93 | ␉unsigned long clock;␊ |
| 94 | ␉␊ |
| 95 | ␉UInt16 x1;␊ |
| 96 | ␉UInt16 htotal;␊ |
| 97 | ␉UInt16 x2;␊ |
| 98 | ␉UInt16 hblank;␊ |
| 99 | ␉UInt16 hsyncstart;␊ |
| 100 | ␉UInt16 hsyncend;␊ |
| 101 | ␉␊ |
| 102 | ␉UInt16 y1;␊ |
| 103 | ␉UInt16 vtotal;␊ |
| 104 | ␉UInt16 y2;␊ |
| 105 | ␉UInt16 vblank;␊ |
| 106 | ␉UInt16 vsyncstart;␊ |
| 107 | ␉UInt16 vsyncend;␊ |
| 108 | ␉␊ |
| 109 | ␉UInt16 timing_h;␊ |
| 110 | ␉UInt16 timing_v;␊ |
| 111 | ␉␊ |
| 112 | ␉UInt8 unknown[6];␊ |
| 113 | } __attribute__((packed)) vbios_modeline_type3;␊ |
| 114 | ␊ |
| 115 | typedef struct {␊ |
| 116 | ␉unsigned char unknown[6];␊ |
| 117 | ␉␊ |
| 118 | vbios_modeline_type3 modelines[];␊ |
| 119 | } __attribute__((packed)) vbios_resolution_type3;␊ |
| 120 | ␊ |
| 121 | typedef struct {␊ |
| 122 | ␉UInt32 chipset_id;␊ |
| 123 | ␉chipset_type chipset;␊ |
| 124 | ␉bios_type bios;␊ |
| 125 | ␉␊ |
| 126 | ␉UInt32 bios_fd;␊ |
| 127 | ␉char* bios_ptr;␊ |
| 128 | ␉␊ |
| 129 | ␉vbios_mode * mode_table;␊ |
| 130 | ␉UInt32 mode_table_size;␊ |
| 131 | ␉UInt8 b1, b2;␊ |
| 132 | ␉␊ |
| 133 | ␉UInt8 unlocked;␊ |
| 134 | } vbios_map;␊ |
| 135 | ␊ |
| 136 | ␊ |
| 137 | ␊ |
| 138 | void display_map_info(vbios_map*);␊ |
| 139 | vbios_map * open_vbios(chipset_type);␊ |
| 140 | void close_vbios (vbios_map*);␊ |
| 141 | void unlock_vbios(vbios_map*);␊ |
| 142 | void relock_vbios(vbios_map*);␊ |
| 143 | void set_mode(vbios_map*, UInt32, UInt32, UInt32, UInt32, UInt32);␊ |
| 144 | void list_modes(vbios_map *map, UInt32 raw);␊ |
| 145 | ␊ |
| 146 | #endif␊ |
| 147 | |
