projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * drivers/video/edid.h - EDID/DDC Header | |
| 3 | * | |
| 4 | * Based on: | |
| 5 | * 1. XFree86 4.3.0, edid.h | |
| 6 | * Copyright 1998 by Egbert Eich <[email protected]> | |
| 7 | * | |
| 8 | * 2. John Fremlin <[email protected]> and | |
| 9 | * Ani Joshi <[email protected]> | |
| 10 | * | |
| 11 | * DDC is a Trademark of VESA (Video Electronics Standard Association). | |
| 12 | * | |
| 13 | * This file is subject to the terms and conditions of the GNU General Public | |
| 14 | * License. See the file COPYING in the main directory of this archive | |
| 15 | * for more details. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef __EDID_H__ | |
| 19 | #define __EDID_H__ | |
| 20 | ||
| 21 | #define EDID_LENGTH 0x80 | |
| 22 | #define EDID_HEADER 0x00 | |
| 23 | #define EDID_HEADER_END 0x07 | |
| 24 | ||
| 25 | #define ID_MANUFACTURER_NAME 0x08 | |
| 26 | #define ID_MANUFACTURER_NAME_END 0x09 | |
| 27 | #define ID_MODEL 0x0a | |
| 28 | ||
| 29 | #define ID_SERIAL_NUMBER 0x0c | |
| 30 | ||
| 31 | #define MANUFACTURE_WEEK 0x10 | |
| 32 | #define MANUFACTURE_YEAR 0x11 | |
| 33 | ||
| 34 | #define EDID_STRUCT_VERSION 0x12 | |
| 35 | #define EDID_STRUCT_REVISION 0x13 | |
| 36 | ||
| 37 | #define EDID_STRUCT_DISPLAY 0x14 | |
| 38 | ||
| 39 | #define DPMS_FLAGS 0x18 | |
| 40 | #define ESTABLISHED_TIMING_1 0x23 | |
| 41 | #define ESTABLISHED_TIMING_2 0x24 | |
| 42 | #define MANUFACTURERS_TIMINGS 0x25 | |
| 43 | ||
| 44 | /* standard timings supported */ | |
| 45 | #define STD_TIMING 8 | |
| 46 | #define STD_TIMING_DESCRIPTION_SIZE 2 | |
| 47 | #define STD_TIMING_DESCRIPTIONS_START 0x26 | |
| 48 | ||
| 49 | #define DETAILED_TIMING_DESCRIPTIONS_START 0x36 | |
| 50 | #define DETAILED_TIMING_DESCRIPTION_SIZE 18 | |
| 51 | #define NO_DETAILED_TIMING_DESCRIPTIONS 4 | |
| 52 | ||
| 53 | #define DETAILED_TIMING_DESCRIPTION_1 0x36 | |
| 54 | #define DETAILED_TIMING_DESCRIPTION_2 0x48 | |
| 55 | #define DETAILED_TIMING_DESCRIPTION_3 0x5a | |
| 56 | #define DETAILED_TIMING_DESCRIPTION_4 0x6c | |
| 57 | ||
| 58 | #define DESCRIPTOR_DATA 5 | |
| 59 | ||
| 60 | #define UPPER_NIBBLE( x ) \ | |
| 61 | (((128|64|32|16) & (x)) >> 4) | |
| 62 | ||
| 63 | #define LOWER_NIBBLE( x ) \ | |
| 64 | ((1|2|4|8) & (x)) | |
| 65 | ||
| 66 | #define COMBINE_HI_8LO( hi, lo ) \ | |
| 67 | ( (((unsigned)hi) << 8) | (unsigned)lo ) | |
| 68 | ||
| 69 | #define COMBINE_HI_4LO( hi, lo ) \ | |
| 70 | ( (((unsigned)hi) << 4) | (unsigned)lo ) | |
| 71 | ||
| 72 | #define PIXEL_CLOCK_LO (unsigned)block[ 0 ] | |
| 73 | #define PIXEL_CLOCK_HI (unsigned)block[ 1 ] | |
| 74 | #define PIXEL_CLOCK (COMBINE_HI_8LO( PIXEL_CLOCK_HI,PIXEL_CLOCK_LO )*10000) | |
| 75 | #define H_ACTIVE_LO (unsigned)block[ 2 ] | |
| 76 | #define H_BLANKING_LO (unsigned)block[ 3 ] | |
| 77 | #define H_ACTIVE_HI UPPER_NIBBLE( (unsigned)block[ 4 ] ) | |
| 78 | #define H_ACTIVE COMBINE_HI_8LO( H_ACTIVE_HI, H_ACTIVE_LO ) | |
| 79 | #define H_BLANKING_HI LOWER_NIBBLE( (unsigned)block[ 4 ] ) | |
| 80 | #define H_BLANKING COMBINE_HI_8LO( H_BLANKING_HI, H_BLANKING_LO ) | |
| 81 | ||
| 82 | #define V_ACTIVE_LO (unsigned)block[ 5 ] | |
| 83 | #define V_BLANKING_LO (unsigned)block[ 6 ] | |
| 84 | #define V_ACTIVE_HI UPPER_NIBBLE( (unsigned)block[ 7 ] ) | |
| 85 | #define V_ACTIVE COMBINE_HI_8LO( V_ACTIVE_HI, V_ACTIVE_LO ) | |
| 86 | #define V_BLANKING_HI LOWER_NIBBLE( (unsigned)block[ 7 ] ) | |
| 87 | #define V_BLANKING COMBINE_HI_8LO( V_BLANKING_HI, V_BLANKING_LO ) | |
| 88 | ||
| 89 | #define H_SYNC_OFFSET_LO (unsigned)block[ 8 ] | |
| 90 | #define H_SYNC_WIDTH_LO (unsigned)block[ 9 ] | |
| 91 | ||
| 92 | #define V_SYNC_OFFSET_LO UPPER_NIBBLE( (unsigned)block[ 10 ] ) | |
| 93 | #define V_SYNC_WIDTH_LO LOWER_NIBBLE( (unsigned)block[ 10 ] ) | |
| 94 | ||
| 95 | #define V_SYNC_WIDTH_HI ((unsigned)block[ 11 ] & (1|2)) | |
| 96 | #define V_SYNC_OFFSET_HI (((unsigned)block[ 11 ] & (4|8)) >> 2) | |
| 97 | ||
| 98 | #define H_SYNC_WIDTH_HI (((unsigned)block[ 11 ] & (16|32)) >> 4) | |
| 99 | #define H_SYNC_OFFSET_HI (((unsigned)block[ 11 ] & (64|128)) >> 6) | |
| 100 | ||
| 101 | #define V_SYNC_WIDTH COMBINE_HI_4LO( V_SYNC_WIDTH_HI, V_SYNC_WIDTH_LO ) | |
| 102 | #define V_SYNC_OFFSET COMBINE_HI_4LO( V_SYNC_OFFSET_HI, V_SYNC_OFFSET_LO ) | |
| 103 | ||
| dfc906da MD |
104 | #define H_SYNC_WIDTH COMBINE_HI_8LO( H_SYNC_WIDTH_HI, H_SYNC_WIDTH_LO ) |
| 105 | #define H_SYNC_OFFSET COMBINE_HI_8LO( H_SYNC_OFFSET_HI, H_SYNC_OFFSET_LO ) | |
| 1da177e4 LT |
106 | |
| 107 | #define H_SIZE_LO (unsigned)block[ 12 ] | |
| 108 | #define V_SIZE_LO (unsigned)block[ 13 ] | |
| 109 | ||
| 110 | #define H_SIZE_HI UPPER_NIBBLE( (unsigned)block[ 14 ] ) | |
| 111 | #define V_SIZE_HI LOWER_NIBBLE( (unsigned)block[ 14 ] ) | |
| 112 | ||
| 113 | #define H_SIZE COMBINE_HI_8LO( H_SIZE_HI, H_SIZE_LO ) | |
| 114 | #define V_SIZE COMBINE_HI_8LO( V_SIZE_HI, V_SIZE_LO ) | |
| 115 | ||
| 116 | #define H_BORDER (unsigned)block[ 15 ] | |
| 117 | #define V_BORDER (unsigned)block[ 16 ] | |
| 118 | ||
| 119 | #define FLAGS (unsigned)block[ 17 ] | |
| 120 | ||
| 121 | #define INTERLACED (FLAGS&128) | |
| 122 | #define SYNC_TYPE (FLAGS&3<<3) /* bits 4,3 */ | |
| 123 | #define SYNC_SEPARATE (3<<3) | |
| 124 | #define HSYNC_POSITIVE (FLAGS & 4) | |
| 125 | #define VSYNC_POSITIVE (FLAGS & 2) | |
| 126 | ||
| 127 | #define V_MIN_RATE block[ 5 ] | |
| 128 | #define V_MAX_RATE block[ 6 ] | |
| 129 | #define H_MIN_RATE block[ 7 ] | |
| 130 | #define H_MAX_RATE block[ 8 ] | |
| 131 | #define MAX_PIXEL_CLOCK (((int)block[ 9 ]) * 10) | |
| 132 | #define GTF_SUPPORT block[10] | |
| 133 | ||
| 134 | #define DPMS_ACTIVE_OFF (1 << 5) | |
| 135 | #define DPMS_SUSPEND (1 << 6) | |
| 136 | #define DPMS_STANDBY (1 << 7) | |
| 137 | ||
| 138 | #endif /* __EDID_H__ */ |