273 lines
9.5 KiB
ArmAsm
273 lines
9.5 KiB
ArmAsm
|
/*
|
||
|
|
edid.S: EDID data template
|
||
|
|
|
||
|
|
Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU General Public License
|
||
|
|
as published by the Free Software Foundation; either version 2
|
||
|
|
of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
/* Manufacturer */
|
||
|
|
#define MFG_LNX1 'L'
|
||
|
|
#define MFG_LNX2 'N'
|
||
|
|
#define MFG_LNX3 'X'
|
||
|
|
#define SERIAL 0
|
||
|
|
#define YEAR 2012
|
||
|
|
#define WEEK 5
|
||
|
|
|
||
|
|
/* EDID 1.3 standard definitions */
|
||
|
|
#define XY_RATIO_16_10 0b00
|
||
|
|
#define XY_RATIO_4_3 0b01
|
||
|
|
#define XY_RATIO_5_4 0b10
|
||
|
|
#define XY_RATIO_16_9 0b11
|
||
|
|
|
||
|
|
/* Provide defaults for the timing bits */
|
||
|
|
#ifndef ESTABLISHED_TIMING1_BITS
|
||
|
|
#define ESTABLISHED_TIMING1_BITS 0x00
|
||
|
|
#endif
|
||
|
|
#ifndef ESTABLISHED_TIMING2_BITS
|
||
|
|
#define ESTABLISHED_TIMING2_BITS 0x00
|
||
|
|
#endif
|
||
|
|
#ifndef ESTABLISHED_TIMING3_BITS
|
||
|
|
#define ESTABLISHED_TIMING3_BITS 0x00
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define mfgname2id(v1,v2,v3) \
|
||
|
|
((((v1-'@')&0x1f)<<10)+(((v2-'@')&0x1f)<<5)+((v3-'@')&0x1f))
|
||
|
|
#define swap16(v1) ((v1>>8)+((v1&0xff)<<8))
|
||
|
|
#define msbs2(v1,v2) ((((v1>>8)&0x0f)<<4)+((v2>>8)&0x0f))
|
||
|
|
#define msbs4(v1,v2,v3,v4) \
|
||
|
|
(((v1&0x03)>>2)+((v2&0x03)>>4)+((v3&0x03)>>6)+((v4&0x03)>>8))
|
||
|
|
#define pixdpi2mm(pix,dpi) ((pix*25)/dpi)
|
||
|
|
#define xsize pixdpi2mm(XPIX,DPI)
|
||
|
|
#define ysize pixdpi2mm(YPIX,DPI)
|
||
|
|
|
||
|
|
.data
|
||
|
|
|
||
|
|
/* Fixed header pattern */
|
||
|
|
header: .byte 0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
|
||
|
|
|
||
|
|
mfg_id: .hword swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
|
||
|
|
|
||
|
|
prod_code: .hword 0
|
||
|
|
|
||
|
|
/* Serial number. 32 bits, little endian. */
|
||
|
|
serial_number: .long SERIAL
|
||
|
|
|
||
|
|
/* Week of manufacture */
|
||
|
|
week: .byte WEEK
|
||
|
|
|
||
|
|
/* Year of manufacture, less 1990. (1990-2245)
|
||
|
|
If week=255, it is the model year instead */
|
||
|
|
year: .byte YEAR-1990
|
||
|
|
|
||
|
|
version: .byte VERSION /* EDID version, usually 1 (for 1.3) */
|
||
|
|
revision: .byte REVISION /* EDID revision, usually 3 (for 1.3) */
|
||
|
|
|
||
|
|
/* If Bit 7=1 Digital input. If set, the following bit definitions apply:
|
||
|
|
Bits 6-1 Reserved, must be 0
|
||
|
|
Bit 0 Signal is compatible with VESA DFP 1.x TMDS CRGB,
|
||
|
|
1 pixel per clock, up to 8 bits per color, MSB aligned,
|
||
|
|
If Bit 7=0 Analog input. If clear, the following bit definitions apply:
|
||
|
|
Bits 6-5 Video white and sync levels, relative to blank
|
||
|
|
00=+0.7/-0.3 V; 01=+0.714/-0.286 V;
|
||
|
|
10=+1.0/-0.4 V; 11=+0.7/0 V
|
||
|
|
Bit 4 Blank-to-black setup (pedestal) expected
|
||
|
|
Bit 3 Separate sync supported
|
||
|
|
Bit 2 Composite sync (on HSync) supported
|
||
|
|
Bit 1 Sync on green supported
|
||
|
|
Bit 0 VSync pulse must be serrated when somposite or
|
||
|
|
sync-on-green is used. */
|
||
|
|
video_parms: .byte 0x6d
|
||
|
|
|
||
|
|
/* Maximum horizontal image size, in centimetres
|
||
|
|
(max 292 cm/115 in at 16:9 aspect ratio) */
|
||
|
|
max_hor_size: .byte xsize/10
|
||
|
|
|
||
|
|
/* Maximum vertical image size, in centimetres.
|
||
|
|
If either byte is 0, undefined (e.g. projector) */
|
||
|
|
max_vert_size: .byte ysize/10
|
||
|
|
|
||
|
|
/* Display gamma, minus 1, times 100 (range 1.00-3.5 */
|
||
|
|
gamma: .byte 120
|
||
|
|
|
||
|
|
/* Bit 7 DPMS standby supported
|
||
|
|
Bit 6 DPMS suspend supported
|
||
|
|
Bit 5 DPMS active-off supported
|
||
|
|
Bits 4-3 Display type: 00=monochrome; 01=RGB colour;
|
||
|
|
10=non-RGB multicolour; 11=undefined
|
||
|
|
Bit 2 Standard sRGB colour space. Bytes 25-34 must contain
|
||
|
|
sRGB standard values.
|
||
|
|
Bit 1 Preferred timing mode specified in descriptor block 1.
|
||
|
|
Bit 0 GTF supported with default parameter values. */
|
||
|
|
dsp_features: .byte 0xea
|
||
|
|
|
||
|
|
/* Chromaticity coordinates. */
|
||
|
|
/* Red and green least-significant bits
|
||
|
|
Bits 7-6 Red x value least-significant 2 bits
|
||
|
|
Bits 5-4 Red y value least-significant 2 bits
|
||
|
|
Bits 3-2 Green x value lst-significant 2 bits
|
||
|
|
Bits 1-0 Green y value least-significant 2 bits */
|
||
|
|
red_green_lsb: .byte 0x5e
|
||
|
|
|
||
|
|
/* Blue and white least-significant 2 bits */
|
||
|
|
blue_white_lsb: .byte 0xc0
|
||
|
|
|
||
|
|
/* Red x value most significant 8 bits.
|
||
|
|
0-255 encodes 0-0.996 (255/256); 0-0.999 (1023/1024) with lsbits */
|
||
|
|
red_x_msb: .byte 0xa4
|
||
|
|
|
||
|
|
/* Red y value most significant 8 bits */
|
||
|
|
red_y_msb: .byte 0x59
|
||
|
|
|
||
|
|
/* Green x and y value most significant 8 bits */
|
||
|
|
green_x_y_msb: .byte 0x4a,0x98
|
||
|
|
|
||
|
|
/* Blue x and y value most significant 8 bits */
|
||
|
|
blue_x_y_msb: .byte 0x25,0x20
|
||
|
|
|
||
|
|
/* Default white point x and y value most significant 8 bits */
|
||
|
|
white_x_y_msb: .byte 0x50,0x54
|
||
|
|
|
||
|
|
/* Established timings */
|
||
|
|
/* Bit 7 720x400 @ 70 Hz
|
||
|
|
Bit 6 720x400 @ 88 Hz
|
||
|
|
Bit 5 640x480 @ 60 Hz
|
||
|
|
Bit 4 640x480 @ 67 Hz
|
||
|
|
Bit 3 640x480 @ 72 Hz
|
||
|
|
Bit 2 640x480 @ 75 Hz
|
||
|
|
Bit 1 800x600 @ 56 Hz
|
||
|
|
Bit 0 800x600 @ 60 Hz */
|
||
|
|
estbl_timing1: .byte ESTABLISHED_TIMING1_BITS
|
||
|
|
|
||
|
|
/* Bit 7 800x600 @ 72 Hz
|
||
|
|
Bit 6 800x600 @ 75 Hz
|
||
|
|
Bit 5 832x624 @ 75 Hz
|
||
|
|
Bit 4 1024x768 @ 87 Hz, interlaced (1024x768)
|
||
|
|
Bit 3 1024x768 @ 60 Hz
|
||
|
|
Bit 2 1024x768 @ 72 Hz
|
||
|
|
Bit 1 1024x768 @ 75 Hz
|
||
|
|
Bit 0 1280x1024 @ 75 Hz */
|
||
|
|
estbl_timing2: .byte ESTABLISHED_TIMING2_BITS
|
||
|
|
|
||
|
|
/* Bit 7 1152x870 @ 75 Hz (Apple Macintosh II)
|
||
|
|
Bits 6-0 Other manufacturer-specific display mod */
|
||
|
|
estbl_timing3: .byte ESTABLISHED_TIMING3_BITS
|
||
|
|
|
||
|
|
/* Standard timing */
|
||
|
|
/* X resolution, less 31, divided by 8 (256-2288 pixels) */
|
||
|
|
std_xres: .byte (XPIX/8)-31
|
||
|
|
/* Y resolution, X:Y pixel ratio
|
||
|
|
Bits 7-6 X:Y pixel ratio: 00=16:10; 01=4:3; 10=5:4; 11=16:9.
|
||
|
|
Bits 5-0 Vertical frequency, less 60 (60-123 Hz) */
|
||
|
|
std_vres: .byte (XY_RATIO<<6)+VFREQ-60
|
||
|
|
.fill 7,2,0x0101 /* Unused */
|
||
|
|
|
||
|
|
descriptor1:
|
||
|
|
/* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
|
||
|
|
clock: .hword CLOCK/10
|
||
|
|
|
||
|
|
/* Horizontal active pixels 8 lsbits (0-4095) */
|
||
|
|
x_act_lsb: .byte XPIX&0xff
|
||
|
|
/* Horizontal blanking pixels 8 lsbits (0-4095)
|
||
|
|
End of active to start of next active. */
|
||
|
|
x_blk_lsb: .byte XBLANK&0xff
|
||
|
|
/* Bits 7-4 Horizontal active pixels 4 msbits
|
||
|
|
Bits 3-0 Horizontal blanking pixels 4 msbits */
|
||
|
|
x_msbs: .byte msbs2(XPIX,XBLANK)
|
||
|
|
|
||
|
|
/* Vertical active lines 8 lsbits (0-4095) */
|
||
|
|
y_act_lsb: .byte YPIX&0xff
|
||
|
|
/* Vertical blanking lines 8 lsbits (0-4095) */
|
||
|
|
y_blk_lsb: .byte YBLANK&0xff
|
||
|
|
/* Bits 7-4 Vertical active lines 4 msbits
|
||
|
|
Bits 3-0 Vertical blanking lines 4 msbits */
|
||
|
|
y_msbs: .byte msbs2(YPIX,YBLANK)
|
||
|
|
|
||
|
|
/* Horizontal sync offset pixels 8 lsbits (0-1023) From blanking start */
|
||
|
|
x_snc_off_lsb: .byte XOFFSET&0xff
|
||
|
|
/* Horizontal sync pulse width pixels 8 lsbits (0-1023) */
|
||
|
|
x_snc_pls_lsb: .byte XPULSE&0xff
|
||
|
|
/* Bits 7-4 Vertical sync offset lines 4 lsbits -63)
|
||
|
|
Bits 3-0 Vertical sync pulse width lines 4 lsbits -63) */
|
||
|
|
y_snc_lsb: .byte ((YOFFSET-63)<<4)+(YPULSE-63)
|
||
|
|
/* Bits 7-6 Horizontal sync offset pixels 2 msbits
|
||
|
|
Bits 5-4 Horizontal sync pulse width pixels 2 msbits
|
||
|
|
Bits 3-2 Vertical sync offset lines 2 msbits
|
||
|
|
Bits 1-0 Vertical sync pulse width lines 2 msbits */
|
||
|
|
xy_snc_msbs: .byte msbs4(XOFFSET,XPULSE,YOFFSET,YPULSE)
|
||
|
|
|
||
|
|
/* Horizontal display size, mm, 8 lsbits (0-4095 mm, 161 in) */
|
||
|
|
x_dsp_size: .byte xsize&0xff
|
||
|
|
|
||
|
|
/* Vertical display size, mm, 8 lsbits (0-4095 mm, 161 in) */
|
||
|
|
y_dsp_size: .byte ysize&0xff
|
||
|
|
|
||
|
|
/* Bits 7-4 Horizontal display size, mm, 4 msbits
|
||
|
|
Bits 3-0 Vertical display size, mm, 4 msbits */
|
||
|
|
dsp_size_mbsb: .byte msbs2(xsize,ysize)
|
||
|
|
|
||
|
|
/* Horizontal border pixels (each side; total is twice this) */
|
||
|
|
x_border: .byte 0
|
||
|
|
/* Vertical border lines (each side; total is twice this) */
|
||
|
|
y_border: .byte 0
|
||
|
|
|
||
|
|
/* Bit 7 Interlaced
|
||
|
|
Bits 6-5 Stereo mode: 00=No stereo; other values depend on bit 0:
|
||
|
|
Bit 0=0: 01=Field sequential, sync=1 during right; 10=similar,
|
||
|
|
sync=1 during left; 11=4-way interleaved stereo
|
||
|
|
Bit 0=1 2-way interleaved stereo: 01=Right image on even lines;
|
||
|
|
10=Left image on even lines; 11=side-by-side
|
||
|
|
Bits 4-3 Sync type: 00=Analog composite; 01=Bipolar analog composite;
|
||
|
|
10=Digital composite (on HSync); 11=Digital separate
|
||
|
|
Bit 2 If digital separate: Vertical sync polarity (1=positive)
|
||
|
|
Other types: VSync serrated (HSync during VSync)
|
||
|
|
Bit 1 If analog sync: Sync on all 3 RGB lines (else green only)
|
||
|
|
Digital: HSync polarity (1=positive)
|
||
|
|
Bit 0 2-way line-interleaved stereo, if bits 4-3 are not 00. */
|
||
|
|
features: .byte 0x18+(VSYNC_POL<<2)+(HSYNC_POL<<1)
|
||
|
|
|
||
|
|
descriptor2: .byte 0,0 /* Not a detailed timing descriptor */
|
||
|
|
.byte 0 /* Must be zero */
|
||
|
|
.byte 0xff /* Descriptor is monitor serial number (text) */
|
||
|
|
.byte 0 /* Must be zero */
|
||
|
|
start1: .ascii "Linux #0"
|
||
|
|
end1: .byte 0x0a /* End marker */
|
||
|
|
.fill 12-(end1-start1), 1, 0x20 /* Padded spaces */
|
||
|
|
descriptor3: .byte 0,0 /* Not a detailed timing descriptor */
|
||
|
|
.byte 0 /* Must be zero */
|
||
|
|
.byte 0xfd /* Descriptor is monitor range limits */
|
||
|
|
.byte 0 /* Must be zero */
|
||
|
|
start2: .byte VFREQ-1 /* Minimum vertical field rate (1-255 Hz) */
|
||
|
|
.byte VFREQ+1 /* Maximum vertical field rate (1-255 Hz) */
|
||
|
|
.byte (CLOCK/(XPIX+XBLANK))-1 /* Minimum horizontal line rate
|
||
|
|
(1-255 kHz) */
|
||
|
|
.byte (CLOCK/(XPIX+XBLANK))+1 /* Maximum horizontal line rate
|
||
|
|
(1-255 kHz) */
|
||
|
|
.byte (CLOCK/10000)+1 /* Maximum pixel clock rate, rounded up
|
||
|
|
to 10 MHz multiple (10-2550 MHz) */
|
||
|
|
.byte 0 /* No extended timing information type */
|
||
|
|
end2: .byte 0x0a /* End marker */
|
||
|
|
.fill 12-(end2-start2), 1, 0x20 /* Padded spaces */
|
||
|
|
descriptor4: .byte 0,0 /* Not a detailed timing descriptor */
|
||
|
|
.byte 0 /* Must be zero */
|
||
|
|
.byte 0xfc /* Descriptor is text */
|
||
|
|
.byte 0 /* Must be zero */
|
||
|
|
start3: .ascii TIMING_NAME
|
||
|
|
end3: .byte 0x0a /* End marker */
|
||
|
|
.fill 12-(end3-start3), 1, 0x20 /* Padded spaces */
|
||
|
|
extensions: .byte 0 /* Number of extensions to follow */
|
||
|
|
checksum: .byte CRC /* Sum of all bytes must be 0 */
|