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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 <Egbert.Eich@Physik.TU-Darmstadt.DE> |
7 | * |
8 | * 2. John Fremlin <vii@users.sourceforge.net> and |
9 | * Ani Joshi <ajoshi@unixbox.com> |
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 | |
104 | #define H_SYNC_WIDTH COMBINE_HI_4LO( H_SYNC_WIDTH_HI, H_SYNC_WIDTH_LO ) |
105 | #define H_SYNC_OFFSET COMBINE_HI_4LO( H_SYNC_OFFSET_HI, H_SYNC_OFFSET_LO ) |
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__ */ |
139 |
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v2.6.34-rc5
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