2 * Copyright © 2014 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
22 #ifndef DRM_DISPLAYID_H
23 #define DRM_DISPLAYID_H
25 #define DATA_BLOCK_PRODUCT_ID 0x00
26 #define DATA_BLOCK_DISPLAY_PARAMETERS 0x01
27 #define DATA_BLOCK_COLOR_CHARACTERISTICS 0x02
28 #define DATA_BLOCK_TYPE_1_DETAILED_TIMING 0x03
29 #define DATA_BLOCK_TYPE_2_DETAILED_TIMING 0x04
30 #define DATA_BLOCK_TYPE_3_SHORT_TIMING 0x05
31 #define DATA_BLOCK_TYPE_4_DMT_TIMING 0x06
32 #define DATA_BLOCK_VESA_TIMING 0x07
33 #define DATA_BLOCK_CEA_TIMING 0x08
34 #define DATA_BLOCK_VIDEO_TIMING_RANGE 0x09
35 #define DATA_BLOCK_PRODUCT_SERIAL_NUMBER 0x0a
36 #define DATA_BLOCK_GP_ASCII_STRING 0x0b
37 #define DATA_BLOCK_DISPLAY_DEVICE_DATA 0x0c
38 #define DATA_BLOCK_INTERFACE_POWER_SEQUENCING 0x0d
39 #define DATA_BLOCK_TRANSFER_CHARACTERISTICS 0x0e
40 #define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
41 #define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
42 #define DATA_BLOCK_TILED_DISPLAY 0x12
43 #define DATA_BLOCK_CTA 0x81
45 #define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
47 #define PRODUCT_TYPE_EXTENSION 0
48 #define PRODUCT_TYPE_TEST 1
49 #define PRODUCT_TYPE_PANEL 2
50 #define PRODUCT_TYPE_MONITOR 3
51 #define PRODUCT_TYPE_TV 4
52 #define PRODUCT_TYPE_REPEATER 5
53 #define PRODUCT_TYPE_DIRECT_DRIVE 6
55 struct displayid_hdr {
62 struct displayid_block {
68 struct displayid_tiled_block {
69 struct displayid_block base;
73 u8 tile_pixel_bezel[5];
77 struct displayid_detailed_timings_1 {
90 struct displayid_detailed_timing_block {
91 struct displayid_block base;
92 struct displayid_detailed_timings_1 timings[0];
95 #define for_each_displayid_db(displayid, block, idx, length) \
96 for ((block) = (struct displayid_block *)&(displayid)[idx]; \
97 (idx) + sizeof(struct displayid_block) <= (length) && \
98 (idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
99 (block)->num_bytes > 0; \
100 (idx) += (block)->num_bytes + sizeof(struct displayid_block), \
101 (block) = (struct displayid_block *)&(displayid)[idx])