drm_displayid.h 3.2 KB

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  1. /*
  2. * Copyright © 2014 Red Hat Inc.
  3. *
  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:
  10. *
  11. * The above copyright notice and this permission notice shall be included in
  12. * all copies or substantial portions of the Software.
  13. *
  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.
  21. */
  22. #ifndef DRM_DISPLAYID_H
  23. #define DRM_DISPLAYID_H
  24. #define DATA_BLOCK_PRODUCT_ID 0x00
  25. #define DATA_BLOCK_DISPLAY_PARAMETERS 0x01
  26. #define DATA_BLOCK_COLOR_CHARACTERISTICS 0x02
  27. #define DATA_BLOCK_TYPE_1_DETAILED_TIMING 0x03
  28. #define DATA_BLOCK_TYPE_2_DETAILED_TIMING 0x04
  29. #define DATA_BLOCK_TYPE_3_SHORT_TIMING 0x05
  30. #define DATA_BLOCK_TYPE_4_DMT_TIMING 0x06
  31. #define DATA_BLOCK_VESA_TIMING 0x07
  32. #define DATA_BLOCK_CEA_TIMING 0x08
  33. #define DATA_BLOCK_VIDEO_TIMING_RANGE 0x09
  34. #define DATA_BLOCK_PRODUCT_SERIAL_NUMBER 0x0a
  35. #define DATA_BLOCK_GP_ASCII_STRING 0x0b
  36. #define DATA_BLOCK_DISPLAY_DEVICE_DATA 0x0c
  37. #define DATA_BLOCK_INTERFACE_POWER_SEQUENCING 0x0d
  38. #define DATA_BLOCK_TRANSFER_CHARACTERISTICS 0x0e
  39. #define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
  40. #define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
  41. #define DATA_BLOCK_TILED_DISPLAY 0x12
  42. #define DATA_BLOCK_CTA 0x81
  43. #define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
  44. #define PRODUCT_TYPE_EXTENSION 0
  45. #define PRODUCT_TYPE_TEST 1
  46. #define PRODUCT_TYPE_PANEL 2
  47. #define PRODUCT_TYPE_MONITOR 3
  48. #define PRODUCT_TYPE_TV 4
  49. #define PRODUCT_TYPE_REPEATER 5
  50. #define PRODUCT_TYPE_DIRECT_DRIVE 6
  51. struct displayid_hdr {
  52. u8 rev;
  53. u8 bytes;
  54. u8 prod_id;
  55. u8 ext_count;
  56. } __packed;
  57. struct displayid_block {
  58. u8 tag;
  59. u8 rev;
  60. u8 num_bytes;
  61. } __packed;
  62. struct displayid_tiled_block {
  63. struct displayid_block base;
  64. u8 tile_cap;
  65. u8 topo[3];
  66. u8 tile_size[4];
  67. u8 tile_pixel_bezel[5];
  68. u8 topology_id[8];
  69. } __packed;
  70. struct displayid_detailed_timings_1 {
  71. u8 pixel_clock[3];
  72. u8 flags;
  73. u8 hactive[2];
  74. u8 hblank[2];
  75. u8 hsync[2];
  76. u8 hsw[2];
  77. u8 vactive[2];
  78. u8 vblank[2];
  79. u8 vsync[2];
  80. u8 vsw[2];
  81. } __packed;
  82. struct displayid_detailed_timing_block {
  83. struct displayid_block base;
  84. struct displayid_detailed_timings_1 timings[];
  85. };
  86. #define for_each_displayid_db(displayid, block, idx, length) \
  87. for ((block) = (struct displayid_block *)&(displayid)[idx]; \
  88. (idx) + sizeof(struct displayid_block) <= (length) && \
  89. (idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
  90. (block)->num_bytes > 0; \
  91. (idx) += sizeof(struct displayid_block) + (block)->num_bytes, \
  92. (block) = (struct displayid_block *)&(displayid)[idx])
  93. #endif