edid-decode: add support for DisplayID tags 0x09 and 0x0a
Support Video Timing Range Limits and Product Serial Number.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Hans Verkuil
4 years ago
| 376 | 376 | print_timings(" ", t, suffix); |
| 377 | 377 | } |
| 378 | 378 | |
| 379 | // tag 0x0b | |
| 380 | ||
| 381 | static void parse_displayid_gp_string(const unsigned char *x) | |
| 379 | // tag 0x09 | |
| 380 | ||
| 381 | static void parse_displayid_video_timing_range_limits(const unsigned char *x) | |
| 382 | { | |
| 383 | check_displayid_datablock_revision(x); | |
| 384 | ||
| 385 | if (!check_displayid_datablock_length(x, 15, 15)) | |
| 386 | return; | |
| 387 | printf(" Pixel Clock: %.3f-%.3f MHz\n", | |
| 388 | (double)(x[3] | (x[4] << 8) | (x[5] << 16)) / 100.0, | |
| 389 | (double)(x[6] | (x[7] << 8) | (x[8] << 16)) / 100.0); | |
| 390 | printf(" Horizontal Frequency: %u-%u kHz\n", x[9], x[10]); | |
| 391 | printf(" Minimum Horizontal Blanking: %u pixels\n", x[11] | (x[12] << 8)); | |
| 392 | printf(" Vertical Refresh: %u-%u Hz\n", x[13], x[14]); | |
| 393 | printf(" Minimum Vertical Blanking: %u lines\n", x[15] | (x[16] << 8)); | |
| 394 | if (x[17] & 0x80) | |
| 395 | printf(" Supports Interlaced\n"); | |
| 396 | if (x[17] & 0x40) | |
| 397 | printf(" Supports CVT\n"); | |
| 398 | if (x[17] & 0x20) | |
| 399 | printf(" Supports CVT Reduced Blanking\n"); | |
| 400 | if (x[17] & 0x10) | |
| 401 | printf(" Discrete frequency display device\n"); | |
| 402 | } | |
| 403 | ||
| 404 | // tag 0x0a and 0x0b | |
| 405 | ||
| 406 | static void parse_displayid_string(const unsigned char *x) | |
| 382 | 407 | { |
| 383 | 408 | check_displayid_datablock_revision(x); |
| 384 | 409 | if (check_displayid_datablock_length(x)) |
| 916 | 941 | print_timings(" ", find_vic_id(i + 1), suffix); |
| 917 | 942 | } |
| 918 | 943 | break; |
| 919 | case 0x0b: parse_displayid_gp_string(x + offset); break; | |
| 944 | case 0x09: parse_displayid_video_timing_range_limits(x + offset); break; | |
| 945 | case 0x0a: | |
| 946 | case 0x0b: parse_displayid_string(x + offset); break; | |
| 920 | 947 | case 0x0e: parse_displayid_transfer_characteristics(x + offset); break; |
| 921 | 948 | case 0x11: |
| 922 | 949 | for (i = 0; i < len / 7; i++) |