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1/*
2 edid.S: EDID data template
3
4 Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
5
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19*/
20
21
22/* Manufacturer */
23#define MFG_LNX1 'L'
24#define MFG_LNX2 'N'
25#define MFG_LNX3 'X'
26#define SERIAL 0
27#define YEAR 2012
28#define WEEK 5
29
30/* EDID 1.3 standard definitions */
31#define XY_RATIO_16_10 0b00
32#define XY_RATIO_4_3 0b01
33#define XY_RATIO_5_4 0b10
34#define XY_RATIO_16_9 0b11
35
36#define mfgname2id(v1,v2,v3) \
37 ((((v1-'@')&0x1f)<<10)+(((v2-'@')&0x1f)<<5)+((v3-'@')&0x1f))
38#define swap16(v1) ((v1>>8)+((v1&0xff)<<8))
39#define msbs2(v1,v2) ((((v1>>8)&0x0f)<<4)+((v2>>8)&0x0f))
40#define msbs4(v1,v2,v3,v4) \
41 (((v1&0x03)>>2)+((v2&0x03)>>4)+((v3&0x03)>>6)+((v4&0x03)>>8))
42#define pixdpi2mm(pix,dpi) ((pix*25)/dpi)
43#define xsize pixdpi2mm(XPIX,DPI)
44#define ysize pixdpi2mm(YPIX,DPI)
45
46 .data
47
48/* Fixed header pattern */
49header: .byte 0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
50
51mfg_id: .word swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
52
53prod_code: .word 0
54
55/* Serial number. 32 bits, little endian. */
56serial_number: .long SERIAL
57
58/* Week of manufacture */
59week: .byte WEEK
60
61/* Year of manufacture, less 1990. (1990-2245)
62 If week=255, it is the model year instead */
63year: .byte YEAR-1990
64
65version: .byte VERSION /* EDID version, usually 1 (for 1.3) */
66revision: .byte REVISION /* EDID revision, usually 3 (for 1.3) */
67
68/* If Bit 7=1 Digital input. If set, the following bit definitions apply:
69 Bits 6-1 Reserved, must be 0
70 Bit 0 Signal is compatible with VESA DFP 1.x TMDS CRGB,
71 1 pixel per clock, up to 8 bits per color, MSB aligned,
72 If Bit 7=0 Analog input. If clear, the following bit definitions apply:
73 Bits 6-5 Video white and sync levels, relative to blank
74 00=+0.7/-0.3 V; 01=+0.714/-0.286 V;
75 10=+1.0/-0.4 V; 11=+0.7/0 V
76 Bit 4 Blank-to-black setup (pedestal) expected
77 Bit 3 Separate sync supported
78 Bit 2 Composite sync (on HSync) supported
79 Bit 1 Sync on green supported
80 Bit 0 VSync pulse must be serrated when somposite or
81 sync-on-green is used. */
82video_parms: .byte 0x6d
83
84/* Maximum horizontal image size, in centimetres
85 (max 292 cm/115 in at 16:9 aspect ratio) */
86max_hor_size: .byte xsize/10
87
88/* Maximum vertical image size, in centimetres.
89 If either byte is 0, undefined (e.g. projector) */
90max_vert_size: .byte ysize/10
91
92/* Display gamma, minus 1, times 100 (range 1.00-3.5 */
93gamma: .byte 120
94
95/* Bit 7 DPMS standby supported
96 Bit 6 DPMS suspend supported
97 Bit 5 DPMS active-off supported
98 Bits 4-3 Display type: 00=monochrome; 01=RGB colour;
99 10=non-RGB multicolour; 11=undefined
100 Bit 2 Standard sRGB colour space. Bytes 25-34 must contain
101 sRGB standard values.
102 Bit 1 Preferred timing mode specified in descriptor block 1.
103 Bit 0 GTF supported with default parameter values. */
104dsp_features: .byte 0xea
105
106/* Chromaticity coordinates. */
107/* Red and green least-significant bits
108 Bits 7-6 Red x value least-significant 2 bits
109 Bits 5-4 Red y value least-significant 2 bits
110 Bits 3-2 Green x value lst-significant 2 bits
111 Bits 1-0 Green y value least-significant 2 bits */
112red_green_lsb: .byte 0x5e
113
114/* Blue and white least-significant 2 bits */
115blue_white_lsb: .byte 0xc0
116
117/* Red x value most significant 8 bits.
118 0-255 encodes 0-0.996 (255/256); 0-0.999 (1023/1024) with lsbits */
119red_x_msb: .byte 0xa4
120
121/* Red y value most significant 8 bits */
122red_y_msb: .byte 0x59
123
124/* Green x and y value most significant 8 bits */
125green_x_y_msb: .byte 0x4a,0x98
126
127/* Blue x and y value most significant 8 bits */
128blue_x_y_msb: .byte 0x25,0x20
129
130/* Default white point x and y value most significant 8 bits */
131white_x_y_msb: .byte 0x50,0x54
132
133/* Established timings */
134/* Bit 7 720x400 @ 70 Hz
135 Bit 6 720x400 @ 88 Hz
136 Bit 5 640x480 @ 60 Hz
137 Bit 4 640x480 @ 67 Hz
138 Bit 3 640x480 @ 72 Hz
139 Bit 2 640x480 @ 75 Hz
140 Bit 1 800x600 @ 56 Hz
141 Bit 0 800x600 @ 60 Hz */
142estbl_timing1: .byte 0x00
143
144/* Bit 7 800x600 @ 72 Hz
145 Bit 6 800x600 @ 75 Hz
146 Bit 5 832x624 @ 75 Hz
147 Bit 4 1024x768 @ 87 Hz, interlaced (1024x768)
148 Bit 3 1024x768 @ 60 Hz
149 Bit 2 1024x768 @ 72 Hz
150 Bit 1 1024x768 @ 75 Hz
151 Bit 0 1280x1024 @ 75 Hz */
152estbl_timing2: .byte ESTABLISHED_TIMINGS_BITS
153
154/* Bit 7 1152x870 @ 75 Hz (Apple Macintosh II)
155 Bits 6-0 Other manufacturer-specific display mod */
156estbl_timing3: .byte 0x00
157
158/* Standard timing */
159/* X resolution, less 31, divided by 8 (256-2288 pixels) */
160std_xres: .byte (XPIX/8)-31
161/* Y resolution, X:Y pixel ratio
162 Bits 7-6 X:Y pixel ratio: 00=16:10; 01=4:3; 10=5:4; 11=16:9.
163 Bits 5-0 Vertical frequency, less 60 (60-123 Hz) */
164std_vres: .byte (XY_RATIO<<6)+VFREQ-60
165 .fill 7,2,0x0101 /* Unused */
166
167descriptor1:
168/* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
169clock: .word CLOCK/10
170
171/* Horizontal active pixels 8 lsbits (0-4095) */
172x_act_lsb: .byte XPIX&0xff
173/* Horizontal blanking pixels 8 lsbits (0-4095)
174 End of active to start of next active. */
175x_blk_lsb: .byte XBLANK&0xff
176/* Bits 7-4 Horizontal active pixels 4 msbits
177 Bits 3-0 Horizontal blanking pixels 4 msbits */
178x_msbs: .byte msbs2(XPIX,XBLANK)
179
180/* Vertical active lines 8 lsbits (0-4095) */
181y_act_lsb: .byte YPIX&0xff
182/* Vertical blanking lines 8 lsbits (0-4095) */
183y_blk_lsb: .byte YBLANK&0xff
184/* Bits 7-4 Vertical active lines 4 msbits
185 Bits 3-0 Vertical blanking lines 4 msbits */
186y_msbs: .byte msbs2(YPIX,YBLANK)
187
188/* Horizontal sync offset pixels 8 lsbits (0-1023) From blanking start */
189x_snc_off_lsb: .byte XOFFSET&0xff
190/* Horizontal sync pulse width pixels 8 lsbits (0-1023) */
191x_snc_pls_lsb: .byte XPULSE&0xff
192/* Bits 7-4 Vertical sync offset lines 4 lsbits -63)
193 Bits 3-0 Vertical sync pulse width lines 4 lsbits -63) */
194y_snc_lsb: .byte ((YOFFSET-63)<<4)+(YPULSE-63)
195/* Bits 7-6 Horizontal sync offset pixels 2 msbits
196 Bits 5-4 Horizontal sync pulse width pixels 2 msbits
197 Bits 3-2 Vertical sync offset lines 2 msbits
198 Bits 1-0 Vertical sync pulse width lines 2 msbits */
199xy_snc_msbs: .byte msbs4(XOFFSET,XPULSE,YOFFSET,YPULSE)
200
201/* Horizontal display size, mm, 8 lsbits (0-4095 mm, 161 in) */
202x_dsp_size: .byte xsize&0xff
203
204/* Vertical display size, mm, 8 lsbits (0-4095 mm, 161 in) */
205y_dsp_size: .byte ysize&0xff
206
207/* Bits 7-4 Horizontal display size, mm, 4 msbits
208 Bits 3-0 Vertical display size, mm, 4 msbits */
209dsp_size_mbsb: .byte msbs2(xsize,ysize)
210
211/* Horizontal border pixels (each side; total is twice this) */
212x_border: .byte 0
213/* Vertical border lines (each side; total is twice this) */
214y_border: .byte 0
215
216/* Bit 7 Interlaced
217 Bits 6-5 Stereo mode: 00=No stereo; other values depend on bit 0:
218 Bit 0=0: 01=Field sequential, sync=1 during right; 10=similar,
219 sync=1 during left; 11=4-way interleaved stereo
220 Bit 0=1 2-way interleaved stereo: 01=Right image on even lines;
221 10=Left image on even lines; 11=side-by-side
222 Bits 4-3 Sync type: 00=Analog composite; 01=Bipolar analog composite;
223 10=Digital composite (on HSync); 11=Digital separate
224 Bit 2 If digital separate: Vertical sync polarity (1=positive)
225 Other types: VSync serrated (HSync during VSync)
226 Bit 1 If analog sync: Sync on all 3 RGB lines (else green only)
227 Digital: HSync polarity (1=positive)
228 Bit 0 2-way line-interleaved stereo, if bits 4-3 are not 00. */
229features: .byte 0x18+(VSYNC_POL<<2)+(HSYNC_POL<<1)
230
231descriptor2: .byte 0,0 /* Not a detailed timing descriptor */
232 .byte 0 /* Must be zero */
233 .byte 0xff /* Descriptor is monitor serial number (text) */
234 .byte 0 /* Must be zero */
235start1: .ascii "Linux #0"
236end1: .byte 0x0a /* End marker */
237 .fill 12-(end1-start1), 1, 0x20 /* Padded spaces */
238descriptor3: .byte 0,0 /* Not a detailed timing descriptor */
239 .byte 0 /* Must be zero */
240 .byte 0xfd /* Descriptor is monitor range limits */
241 .byte 0 /* Must be zero */
242start2: .byte VFREQ-1 /* Minimum vertical field rate (1-255 Hz) */
243 .byte VFREQ+1 /* Maximum vertical field rate (1-255 Hz) */
244 .byte (CLOCK/(XPIX+XBLANK))-1 /* Minimum horizontal line rate
245 (1-255 kHz) */
246 .byte (CLOCK/(XPIX+XBLANK))+1 /* Maximum horizontal line rate
247 (1-255 kHz) */
248 .byte (CLOCK/10000)+1 /* Maximum pixel clock rate, rounded up
249 to 10 MHz multiple (10-2550 MHz) */
250 .byte 0 /* No extended timing information type */
251end2: .byte 0x0a /* End marker */
252 .fill 12-(end2-start2), 1, 0x20 /* Padded spaces */
253descriptor4: .byte 0,0 /* Not a detailed timing descriptor */
254 .byte 0 /* Must be zero */
255 .byte 0xfc /* Descriptor is text */
256 .byte 0 /* Must be zero */
257start3: .ascii TIMING_NAME
258end3: .byte 0x0a /* End marker */
259 .fill 12-(end3-start3), 1, 0x20 /* Padded spaces */
260extensions: .byte 0 /* Number of extensions to follow */
261checksum: .byte CRC /* Sum of all bytes must be 0 */