104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/*
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* Copyright © 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef DRM_DISPLAYID_H
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#define DRM_DISPLAYID_H
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#define DATA_BLOCK_PRODUCT_ID 0x00
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#define DATA_BLOCK_DISPLAY_PARAMETERS 0x01
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#define DATA_BLOCK_COLOR_CHARACTERISTICS 0x02
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#define DATA_BLOCK_TYPE_1_DETAILED_TIMING 0x03
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#define DATA_BLOCK_TYPE_2_DETAILED_TIMING 0x04
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#define DATA_BLOCK_TYPE_3_SHORT_TIMING 0x05
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#define DATA_BLOCK_TYPE_4_DMT_TIMING 0x06
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#define DATA_BLOCK_VESA_TIMING 0x07
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#define DATA_BLOCK_CEA_TIMING 0x08
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#define DATA_BLOCK_VIDEO_TIMING_RANGE 0x09
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#define DATA_BLOCK_PRODUCT_SERIAL_NUMBER 0x0a
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#define DATA_BLOCK_GP_ASCII_STRING 0x0b
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#define DATA_BLOCK_DISPLAY_DEVICE_DATA 0x0c
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#define DATA_BLOCK_INTERFACE_POWER_SEQUENCING 0x0d
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#define DATA_BLOCK_TRANSFER_CHARACTERISTICS 0x0e
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#define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
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#define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
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#define DATA_BLOCK_TILED_DISPLAY 0x12
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#define DATA_BLOCK_CTA 0x81
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#define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
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#define PRODUCT_TYPE_EXTENSION 0
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#define PRODUCT_TYPE_TEST 1
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#define PRODUCT_TYPE_PANEL 2
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#define PRODUCT_TYPE_MONITOR 3
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#define PRODUCT_TYPE_TV 4
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#define PRODUCT_TYPE_REPEATER 5
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#define PRODUCT_TYPE_DIRECT_DRIVE 6
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struct displayid_hdr {
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u8 rev;
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u8 bytes;
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u8 prod_id;
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u8 ext_count;
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} __packed;
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struct displayid_block {
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u8 tag;
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u8 rev;
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u8 num_bytes;
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} __packed;
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struct displayid_tiled_block {
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struct displayid_block base;
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u8 tile_cap;
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u8 topo[3];
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u8 tile_size[4];
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u8 tile_pixel_bezel[5];
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u8 topology_id[8];
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} __packed;
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struct displayid_detailed_timings_1 {
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u8 pixel_clock[3];
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u8 flags;
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u8 hactive[2];
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u8 hblank[2];
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u8 hsync[2];
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u8 hsw[2];
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u8 vactive[2];
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u8 vblank[2];
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u8 vsync[2];
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u8 vsw[2];
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} __packed;
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struct displayid_detailed_timing_block {
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struct displayid_block base;
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struct displayid_detailed_timings_1 timings[];
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};
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#define for_each_displayid_db(displayid, block, idx, length) \
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for ((block) = (struct displayid_block *)&(displayid)[idx]; \
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(idx) + sizeof(struct displayid_block) <= (length) && \
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(idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
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(block)->num_bytes > 0; \
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(idx) += sizeof(struct displayid_block) + (block)->num_bytes, \
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(block) = (struct displayid_block *)&(displayid)[idx])
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#endif
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