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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:02 EST.

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 */
49	header:		.byte	0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
50	
51	mfg_id:		.word	swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
52	
53	prod_code:	.word	0
54	
55	/* Serial number. 32 bits, little endian. */
56	serial_number:	.long	SERIAL
57	
58	/* Week of manufacture */
59	week:		.byte	WEEK
60	
61	/* Year of manufacture, less 1990. (1990-2245)
62	   If week=255, it is the model year instead */
63	year:		.byte	YEAR-1990
64	
65	version:	.byte	VERSION 	/* EDID version, usually 1 (for 1.3) */
66	revision:	.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. */
82	video_parms:	.byte	0x6d
83	
84	/* Maximum horizontal image size, in centimetres
85	   (max 292 cm/115 in at 16:9 aspect ratio) */
86	max_hor_size:	.byte	xsize/10
87	
88	/* Maximum vertical image size, in centimetres.
89	   If either byte is 0, undefined (e.g. projector) */
90	max_vert_size:	.byte	ysize/10
91	
92	/* Display gamma, minus 1, times 100 (range 1.00-3.5 */
93	gamma:		.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. */
104	dsp_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 */
112	red_green_lsb:	.byte	0x5e
113	
114	/* Blue and white least-significant 2 bits */
115	blue_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 */
119	red_x_msb:	.byte	0xa4
120	
121	/* Red y value most significant 8 bits */
122	red_y_msb:	.byte	0x59
123	
124	/* Green x and y value most significant 8 bits */
125	green_x_y_msb:	.byte	0x4a,0x98
126	
127	/* Blue x and y value most significant 8 bits */
128	blue_x_y_msb:	.byte	0x25,0x20
129	
130	/* Default white point x and y value most significant 8 bits */
131	white_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 */
142	estbl_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 */
152	estbl_timing2:	.byte	ESTABLISHED_TIMINGS_BITS
153	
154	/* Bit 7	1152x870 @ 75 Hz (Apple Macintosh II)
155	   Bits 6-0 	Other manufacturer-specific display mod */
156	estbl_timing3:	.byte	0x00
157	
158	/* Standard timing */
159	/* X resolution, less 31, divided by 8 (256-2288 pixels) */
160	std_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) */
164	std_vres:	.byte	(XY_RATIO<<6)+VFREQ-60
165			.fill	7,2,0x0101	/* Unused */
166	
167	descriptor1:
168	/* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
169	clock:		.word	CLOCK/10
170	
171	/* Horizontal active pixels 8 lsbits (0-4095) */
172	x_act_lsb:	.byte	XPIX&0xff
173	/* Horizontal blanking pixels 8 lsbits (0-4095)
174	   End of active to start of next active. */
175	x_blk_lsb:	.byte	XBLANK&0xff
176	/* Bits 7-4 	Horizontal active pixels 4 msbits
177	   Bits 3-0	Horizontal blanking pixels 4 msbits */
178	x_msbs:		.byte	msbs2(XPIX,XBLANK)
179	
180	/* Vertical active lines 8 lsbits (0-4095) */
181	y_act_lsb:	.byte	YPIX&0xff
182	/* Vertical blanking lines 8 lsbits (0-4095) */
183	y_blk_lsb:	.byte	YBLANK&0xff
184	/* Bits 7-4 	Vertical active lines 4 msbits
185	   Bits 3-0 	Vertical blanking lines 4 msbits */
186	y_msbs:		.byte	msbs2(YPIX,YBLANK)
187	
188	/* Horizontal sync offset pixels 8 lsbits (0-1023) From blanking start */
189	x_snc_off_lsb:	.byte	XOFFSET&0xff
190	/* Horizontal sync pulse width pixels 8 lsbits (0-1023) */
191	x_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) */
194	y_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 */
199	xy_snc_msbs:	.byte	msbs4(XOFFSET,XPULSE,YOFFSET,YPULSE)
200	
201	/* Horizontal display size, mm, 8 lsbits (0-4095 mm, 161 in) */
202	x_dsp_size:	.byte	xsize&0xff
203	
204	/* Vertical display size, mm, 8 lsbits (0-4095 mm, 161 in) */
205	y_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 */
209	dsp_size_mbsb:	.byte	msbs2(xsize,ysize)
210	
211	/* Horizontal border pixels (each side; total is twice this) */
212	x_border:	.byte	0
213	/* Vertical border lines (each side; total is twice this) */
214	y_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. */
229	features:	.byte	0x18+(VSYNC_POL<<2)+(HSYNC_POL<<1)
230	
231	descriptor2:	.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 */
235	start1:		.ascii	"Linux #0"
236	end1:		.byte	0x0a	/* End marker */
237			.fill	12-(end1-start1), 1, 0x20 /* Padded spaces */
238	descriptor3:	.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 */
242	start2:		.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 */
251	end2:		.byte	0x0a	/* End marker */
252			.fill	12-(end2-start2), 1, 0x20 /* Padded spaces */
253	descriptor4:	.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 */
257	start3:		.ascii	TIMING_NAME
258	end3:		.byte	0x0a	/* End marker */
259			.fill	12-(end3-start3), 1, 0x20 /* Padded spaces */
260	extensions:	.byte	0	/* Number of extensions to follow */
261	checksum:	.byte	CRC	/* Sum of all bytes must be 0 */
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