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Implement edid.S as edid.h and edid-private.h
Signed-off-by: Mubashshir <ahmubashshir@gmail.com>
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‎edid-private.h‎

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/*
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edid-private.h: EDID data template
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Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
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Copyright (C) 2023 Mubashshir <ahmubashshir@gmail.com>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __EDID_PRIVATE_H__
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#define __EDID_PRIVATE_H__
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edid_start: .data
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/* Fixed header pattern */
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header: .byte 0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
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#define __swap16(v1) ((v1>>8)+((v1&0xff)<<8))
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#define __msbs2(v1,v2) ((((v1>>8)&0x0f)<<4)+((v2>>8)&0x0f))
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#define __msbs4(v1,v2,v3,v4) \
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(((v1&0x03)>>2)+((v2&0x03)>>4)+((v3&0x03)>>6)+((v4&0x03)>>8))
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#define __pixdpi2mm(pix,dpi) ((pix*25)/dpi)
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#define __count_impl(X) X
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#define __count(X) __count_impl(X)
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#define count() __count(__COUNTER__)
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#define PROCESS(NAME, ...) ___COUNT(count(), NAME, ## __VA_ARGS__)
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#define ___COUNT(num, NAME, ...) __IMPL_ ## NAME(num, ## __VA_ARGS__)
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#define __label(pref, mid, suff) pref ## mid ## suff:
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#define __required_symbol(section) .ifndef section; .err; .endif
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#define __IMPL_BEGIN(num, \
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VER, REV, \
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M, F, G, \
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YEAR, WEEK, \
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PROD, SERIAL \
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)\
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mfg_id: .hword __swap16(((((M-'@')&0x1f)<<10)+(((F-'@')&0x1f)<<5)+((G-'@')&0x1f))); \
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prod_code: .hword PROD; \
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serial_number: .long SERIAL; \
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week: .byte WEEK; \
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year: .byte YEAR-1990; \
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.if VER != 1; .err; .endif; \
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version: .byte VER; \
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.if REV < 0 || REV > 4; .err; .endif; \
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revision: .byte REV
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#define __VIDEO_DIGITAL(X) 0b10000000 | X
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#define __VIDEO_ANALOG(X) 0b00000000 | X
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#define __IMPL_VIDEO(num, TYPE, MODE) \
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video_parms: .byte __VIDEO_##TYPE(MODE)
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#define __IMPL_MAX_SIZE(num, X, Y, DPI) \
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max_size: .byte (__pixdpi2mm(X, DPI)/10) , (__pixdpi2mm(Y, DPI)/10)
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#define __IMPL_GAMMA(num, X) \
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gamma: .byte X
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#define __IMPL_DSP(num, X) \
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dsp_features: .byte X
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#define __IMPL_LSB(num, color_pair, v1x, v1y, v2x, v2y) \
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color_pair ## _lsb: .byte \
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((v1x & 0b11)<<6) \
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| ((v1y & 0b11)<<4) \
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| ((v2x & 0b11)<<2) \
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| ((v2y & 0b11)<<0)
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#define __IMPL_MSB(num, color, x, y) \
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color ## _x_y_msb: .byte x, y
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#define __IMPL_EST_TIMING(num, B7, B6, B5, B4, B3, B2, B1, B0) \
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etimings_##num: .byte \
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(B7<<7) | \
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(B6<<6) | \
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(B5<<5) | \
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(B4<<4) | \
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(B3<<3) | \
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(B2<<2) | \
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(B1<<1) | \
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(B0<<0)
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#define __IMPL_STD_RES(num, type, ...) \
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std_res_ ## num: __STD_RES_##type(num, ## __VA_ARGS__)
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#define __STD_RES_PAD(num)\
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.fill 1,2,0x0101
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/* Standard timing */
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/* X resolution, less 31, divided by 8 (256-2288 pixels) */
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/* Y resolution, X:Y pixel ratio
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Bits 7-6 X:Y pixel ratio: 00=16:10; 01=4:3; 10=5:4; 11=16:9.
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Bits 5-0 Vertical frequency, less 60 (60-123 Hz) */
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#define __STD_RES_RATIO(num, X, RATIO, FREQ)\
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.byte (X/8)-31, (RATIO<<6)+FREQ-60
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#define __IMPL_DSC(num, type, ...) \
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dsc ## num: __DSC_##type(num, ## __VA_ARGS__)
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#define __DSC_DUMMY(num) \
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.byte 0, 0, 0, 0x10; \
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.fill 12,1,0x01; \
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.byte 0x0a, 0x20
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#define __DSC_DTD(num, CLK, DPI, FEATURES, \
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XPIX, YPIX, \
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XOFFSET, YOFFSET, \
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XPULSE, YPULSE, \
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XBLANK, YBLANK, \
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XBORDER, YBORDER) \
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/* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */ \
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.hword CLK/10; \
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/* Horizontal active pixels 8 lsbits (0-4095) */ \
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.byte XPIX&0xff; \
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/* Horizontal blanking pixels 8 lsbits (0-4095)
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End of active to start of next active. */ \
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.byte XBLANK&0xff; \
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/* Bits 7-4 Horizontal active pixels 4 msbits
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Bits 3-0 Horizontal blanking pixels 4 msbits */ \
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.byte __msbs2(XPIX,XBLANK); \
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/* Vertical active lines 8 lsbits (0-4095) */ \
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.byte YPIX&0xff; \
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/* Vertical blanking lines 8 lsbits (0-4095) */ \
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.byte YBLANK&0xff; \
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/* Bits 7-4 Vertical active lines 4 msbits
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Bits 3-0 Vertical blanking lines 4 msbits */ \
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.byte __msbs2(YPIX,YBLANK); \
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/* Horizontal sync offset pixels 8 lsbits (0-1023) From blanking start */\
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.byte XOFFSET&0xff; \
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/* Horizontal sync pulse width pixels 8 lsbits (0-1023) */ \
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.byte XPULSE&0xff; \
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/* Bits 7-4 Vertical sync offset lines 4 lsbits -63)
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Bits 3-0 Vertical sync pulse width lines 4 lsbits -63) */ \
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.byte ((YOFFSET-63)<<4)+(YPULSE-63); \
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/* Bits 7-6 Horizontal sync offset pixels 2 msbits
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Bits 5-4 Horizontal sync pulse width pixels 2 msbits
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Bits 3-2 Vertical sync offset lines 2 msbits
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Bits 1-0 Vertical sync pulse width lines 2 msbits */ \
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.byte __msbs4(XOFFSET,XPULSE,YOFFSET,YPULSE); \
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/* Horizontal display size, mm, 8 lsbits (0-4095 mm, 161 in) */ \
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.byte __pixdpi2mm(XPIX, DPI)&0xff; \
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/* Vertical display size, mm, 8 lsbits (0-4095 mm, 161 in) */\
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.byte __pixdpi2mm(YPIX, DPI)&0xff; \
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/* Bits 7-4 Horizontal display size, mm, 4 msbits
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Bits 3-0 Vertical display size, mm, 4 msbits */ \
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.byte __msbs2(__pixdpi2mm(XPIX, DPI),__pixdpi2mm(YPIX, DPI)); \
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/* Horizontal border pixels (each side; total is twice this) */ \
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.byte XBORDER; \
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/* Vertical border lines (each side; total is twice this) */ \
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.byte YBORDER; \
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/* Bit 7 Interlaced
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Bits 6-5 Stereo mode: 00=No stereo; other values depend on bit 0:
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Bit 0=0: 01=Field sequential, sync=1 during right; 10=similar,
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sync=1 during left; 11=4-way interleaved stereo
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Bit 0=1 2-way interleaved stereo: 01=Right image on even lines;
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10=Left image on even lines; 11=side-by-side
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Bits 4-3 Sync type: 00=Analog composite; 01=Bipolar analog composite;
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10=Digital composite (on HSync); 11=Digital separate
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Bit 2 If digital separate: Vertical sync polarity (1=positive)
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Other types: VSync serrated (HSync during VSync)
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Bit 1 If analog sync: Sync on all 3 RGB lines (else green only)
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Digital: HSync polarity (1=positive)
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Bit 0 2-way line-interleaved stereo, if bits 4-3 are not 00. */ \
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.byte FEATURES
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#define __DSC_ALNUM(num, data) \
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.byte 0,0; /* Not a detailed timing descriptor */ \
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.byte 0; /* Must be zero */\
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.byte 0xfe;/* Descriptor is monitor range limits */\
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.byte 0; /* Must be zero */\
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dsc##num##_start:\
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.ascii data; \
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dsc##num##_end:\
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.byte 0x0a; /* End marker */\
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.fill 12-((dsc##num##_end)-(dsc##num##_start)), 1, 0x20 /* Padded spaces */
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#define __DSC_RAW(num, type, data) \
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.byte 0,0; /* Not a detailed timing descriptor */ \
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.byte 0; /* Must be zero */\
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.byte type;/* Descriptor is monitor range limits */\
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.byte 0; /* Must be zero */\
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dsc##num##_start:\
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data; \
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dsc##num##_end:\
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.byte 0x0a; /* End marker */\
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.fill 12-((dsc##num##_end)-(dsc##num##_start)), 1, 0x20 /* Padded spaces */
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#define __IMPL_EXTENSIONS(num, x) \
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extensions: .byte x /* Number of extensions to follow */
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#define __IMPL_END(num) \
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checksum: .byte CRC /* Sum of all bytes must be 0 (mod 256) */
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#define __required_section_count(num, req) \
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.if num != req; \
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.err; \
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.endif;
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#endif /* __EDID_PRIVATE_H__ */

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