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#define GAMMA(x) (((x) * 100) - 100)
#define MANUFACTURER_ID(a, b, c) (a - '@') << 2 | (b - '@') >> 3, \
(b - '@') << 5 | (c - '@')
#define ab(x, y) ((x) & 0xff), ((y) & 0xff), (((x) & 0xf00) >> 4) | (((y) & 0xf00) >> 8)
#define op(ho, hp, vo, vp) ((ho) & 0xff), ((hp) & 0xff), \
(((vo) & 0xf) << 4) | ((vp) & 0xf), \
(((ho) & 0x300) >> 2) | (((hp) & 0x300) >> 4) \
| (((vo) & 0x30) >> 2) | ((vp) & 0x30 >> 4)
static unsigned char EDID_NAME[EDID_LENGTH] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, /* header */
MANUFACTURER_ID('I', 'G', 'T'),
/* product code, serial number, week and year of manufacture */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x03, /* edid version (1.3) */
/* basic display parameters */
/* digital display, maximum horizontal image size, maximum vertical
* image size, gamma, features: RGB 4:4:4, native pixel format and
* refresh rate in descriptor 1 */
0x80, HSIZE, VSIZE, GAMMA(2.20), 0x02,
/* chromaticity coordinates */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* established timings: 640x480 60Hz, 800x600 60Hz, 1024x768 60Hz */
0x21, 0x08, 0x00,
/* standard timings */
0xd1, 0xc0, /* 1920x1080 60Hz */
0x81, 0xc0, /* 1280x720 60Hz */
0x61, 0x40, /* 1024x768 60Hz */
0x45, 0x40, /* 800x600 60Hz */
0x31, 0x40, /* 640x480 60Hz */
0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
/* descriptor 1 (preferred timing) */
(CLOCK / 10) & 0x00ff, ((CLOCK / 10) & 0xff00) >> 8,
ab(HACTIVE, HBLANK), ab(VACTIVE, VBLANK),
op(HOFFSET, HPULSE, VOFFSET, VPULSE),
ab(HSIZE * 10, VSIZE * 10),
0x00, 0x00, 0x00,
/* descriptor 2 (monitor range limits) */
0x00, 0x00, 0x00, 0xfd, 0x00,
VFREQ - 1, VFREQ + 1, /* minimum, maximum vertical field rate */
(CLOCK / (HACTIVE + HBLANK)) - 1, /* minimum horizontal line rate */
(CLOCK / (HACTIVE + HBLANK)) + 1, /* maximum horizontal line rate */
(CLOCK / 10000) + 1, /* maximum pixel clock rate */
0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
/* descriptor 3 (name descriptor) */
0x00, 0x00, 0x00, 0xfc, 0x00, 'I', 'G', 'T', 0x0a,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
/* descriptor 4 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* extensions, checksum */
0x00, 0x00
};
#undef EDID_NAME
#undef VFREQ
#undef CLOCK
#undef HACTIVE
#undef HBLANK
#undef VACTIVE
#undef VBLANK
#undef HOFFSET
#undef HPULSE
#undef VOFFSET
#undef VPULSE
#undef HSIZE
#undef VSIZE
#undef GAMMA
#undef MANUFACTURER_ID
#undef ab
#undef op
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