1 /* $NetBSD: edidreg.h,v 1.3 2011/03/30 18:49:56 jdc Exp $ */
5 * Copyright (c) 2006 Itronix Inc.
8 * Written by Garrett D'Amore for Itronix Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of Itronix Inc. may not be used to endorse
19 * or promote products derived from this software without specific
20 * prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND ANY EXPRESS
23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
28 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
31 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
32 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #ifndef _DEV_VIDEOMODE_EDIDREG_H
36 #define _DEV_VIDEOMODE_EDIDREG_H
38 #define EDID_OFFSET_SIGNATURE 0x00
39 #define EDID_OFFSET_MANUFACTURER_ID 0x08
40 #define EDID_OFFSET_PRODUCT_ID 0x0a
41 #define EDID_OFFSET_SERIAL_NUMBER 0x0c
42 #define EDID_OFFSET_MANUFACTURE_WEEK 0x10
43 #define EDID_OFFSET_MANUFACTURE_YEAR 0x11
44 #define EDID_OFFSET_VERSION 0x12
45 #define EDID_OFFSET_REVISION 0x13
46 #define EDID_OFFSET_VIDEO_INPUT 0x14
47 #define EDID_OFFSET_MAX_HSIZE 0x15 /* in cm */
48 #define EDID_OFFSET_MAX_VSIZE 0x16
49 #define EDID_OFFSET_GAMMA 0x17
50 #define EDID_OFFSET_FEATURE 0x18
51 #define EDID_OFFSET_CHROMA 0x19
52 #define EDID_OFFSET_EST_TIMING_1 0x23
53 #define EDID_OFFSET_EST_TIMING_2 0x24
54 #define EDID_OFFSET_MFG_TIMING 0x25
55 #define EDID_OFFSET_STD_TIMING 0x26
56 #define EDID_OFFSET_DESC_BLOCK 0x36
58 #define EDID_SIGNATURE { 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0 }
60 /* assume x is 16-bit value */
61 #define EDID_VENDOR_ID(ptr) ((((ptr)[8]) << 8) + ptr[9])
62 #define EDID_MANFID_0(x) ((((x) >> 10) & 0x1f) + '@')
63 #define EDID_MANFID_1(x) ((((x) >> 5) & 0x1f) + '@')
64 #define EDID_MANFID_2(x) ((((x) >> 0) & 0x1f) + '@')
66 /* relative to edid block */
67 #define EDID_PRODUCT_ID(ptr) (((ptr)[10]) | (((ptr)[11]) << 8))
68 #define EDID_SERIAL_NUMBER(ptr) (((ptr)[12] << 24) + \
73 /* relative to edid block */
74 #define EDID_WEEK(ptr) ((ptr)[16])
75 #define EDID_YEAR(ptr) (((ptr)[17]) + 1990)
77 #define EDID_VERSION(ptr) ((ptr)[18])
78 #define EDID_REVISION(ptr) ((ptr)[19])
80 #define EDID_VIDEO_INPUT(ptr) ((ptr)[20])
81 #define EDID_VIDEO_INPUT_DIGITAL 0x80
82 /* if INPUT_BIT_DIGITAL set */
83 #define EDID_VIDEO_INPUT_DFP1_COMPAT 0x01
84 /* if INPUT_BIT_DIGITAL not set */
85 #define EDID_VIDEO_INPUT_BLANK_TO_BLACK 0x10
86 #define EDID_VIDEO_INPUT_SEPARATE_SYNCS 0x08
87 #define EDID_VIDEO_INPUT_COMPOSITE_SYNC 0x04
88 #define EDID_VIDEO_INPUT_SYNC_ON_GRN 0x02
89 #define EDID_VIDEO_INPUT_SERRATION 0x01
90 #define EDID_VIDEO_INPUT_LEVEL(x) (((x) & 0x60) >> 5)
91 /* meanings of level bits are as follows, I don't know names */
92 /* 0 = 0.7,0.3, 1 = 0.714,0.286, 2 = 1.0,0.4, 3 = 0.7,0.0 */
94 /* relative to edid block */
95 #define EDID_MAX_HSIZE(ptr) ((ptr)[21]) /* cm */
96 #define EDID_MAX_VSIZE(ptr) ((ptr)[22]) /* cm */
97 /* gamma is scaled by 100 (avoid fp), e.g. 213 == 2.13 */
98 #define _GAMMA(x) ((x) == 0xff ? 100 : ((x) + 100))
99 #define EDID_GAMMA(ptr) _GAMMA(ptr[23])
101 #define EDID_FEATURES(ptr) ((ptr)[24])
102 #define EDID_FEATURES_STANDBY 0x80
103 #define EDID_FEATURES_SUSPEND 0x40
104 #define EDID_FEATURES_ACTIVE_OFF 0x20
105 #define EDID_FEATURES_DISP_TYPE(x) (((x) & 0x18) >> 3)
106 #define EDID_FEATURES_DISP_TYPE_MONO 0
107 #define EDID_FEATURES_DISP_TYPE_RGB 1
108 #define EDID_FEATURES_DISP_TYPE_NON_RGB 2
109 #define EDID_FEATURES_DISP_TYPE_UNDEFINED 3
110 #define EDID_FEATURES_STD_COLOR 0x04
111 #define EDID_FEATURES_PREFERRED_TIMING 0x02
112 #define EDID_FEATURES_DEFAULT_GTF 0x01
114 /* chroma values 0.0 - 0.999 scaled as 0-999 */
115 #define _CHLO(byt, shft) (((byt) >> (shft)) & 0x3)
116 #define _CHHI(byt) ((byt) << 2)
117 #define _CHHILO(ptr, l, s, h) (_CHLO((ptr)[l], s) | _CHHI((ptr)[h]))
118 #define _CHROMA(ptr, l, s, h) ((_CHHILO(ptr, l, s, h) * 1000) / 1024)
120 #define EDID_CHROMA_REDX(ptr) (_CHROMA(ptr, 25, 6, 27))
121 #define EDID_CHROMA_REDY(ptr) (_CHROMA(ptr, 25, 4, 28))
122 #define EDID_CHROMA_GREENX(ptr) (_CHROMA(ptr, 25, 2, 29))
123 #define EDID_CHROMA_GREENY(ptr) (_CHROMA(ptr, 25, 0, 30))
124 #define EDID_CHROMA_BLUEX(ptr) (_CHROMA(ptr, 26, 6, 31))
125 #define EDID_CHROMA_BLUEY(ptr) (_CHROMA(ptr, 26, 4, 32))
126 #define EDID_CHROMA_WHITEX(ptr) (_CHROMA(ptr, 26, 2, 33))
127 #define EDID_CHROMA_WHITEY(ptr) (_CHROMA(ptr, 26, 0, 34))
129 /* relative to edid block */
130 #define EDID_EST_TIMING(ptr) (((ptr)[35] << 8) | (ptr)[36])
131 #define EDID_EST_TIMING_720_400_70 0x8000 /* 720x400 @ 70Hz */
132 #define EDID_EST_TIMING_720_400_88 0x4000 /* 720x400 @ 88Hz */
133 #define EDID_EST_TIMING_640_480_60 0x2000 /* 640x480 @ 60Hz */
134 #define EDID_EST_TIMING_640_480_67 0x1000 /* 640x480 @ 67Hz */
135 #define EDID_EST_TIMING_640_480_72 0x0800 /* 640x480 @ 72Hz */
136 #define EDID_EST_TIMING_640_480_75 0x0400 /* 640x480 @ 75Hz */
137 #define EDID_EST_TIMING_800_600_56 0x0200 /* 800x600 @ 56Hz */
138 #define EDID_EST_TIMING_800_600_60 0x0100 /* 800x600 @ 60Hz */
139 #define EDID_EST_TIMING_800_600_72 0x0080 /* 800x600 @ 72Hz */
140 #define EDID_EST_TIMING_800_600_75 0x0040 /* 800x600 @ 75Hz */
141 #define EDID_EST_TIMING_832_624_75 0x0020 /* 832x624 @ 75Hz */
142 #define EDID_EST_TIMING_1024_768_87I 0x0010 /* 1024x768i @ 87Hz */
143 #define EDID_EST_TIMING_1024_768_60 0x0008 /* 1024x768 @ 60Hz */
144 #define EDID_EST_TIMING_1024_768_70 0x0004 /* 1024x768 @ 70Hz */
145 #define EDID_EST_TIMING_1024_768_75 0x0002 /* 1024x768 @ 75Hz */
146 #define EDID_EST_TIMING_1280_1024_75 0x0001 /* 1280x1024 @ 75Hz */
149 * N.B.: ptr is relative to standard timing block - used for standard timing
150 * descriptors as well as standard timings section of edid!
152 #define EDID_STD_TIMING_HRES(ptr) ((((ptr)[0]) * 8) + 248)
153 #define EDID_STD_TIMING_VFREQ(ptr) ((((ptr)[1]) & 0x3f) + 60)
154 #define EDID_STD_TIMING_RATIO(ptr) ((ptr)[1] & 0xc0)
155 #define EDID_STD_TIMING_RATIO_16_10 0x00
156 #define EDID_STD_TIMING_RATIO_4_3 0x40
157 #define EDID_STD_TIMING_RATIO_5_4 0x80
158 #define EDID_STD_TIMING_RATIO_16_9 0xc0
160 #define EDID_STD_TIMING_SIZE 16
161 #define EDID_STD_TIMING_COUNT 8
164 * N.B.: ptr is relative to descriptor block start
166 #define EDID_BLOCK_SIZE 18
167 #define EDID_BLOCK_COUNT 4
169 /* detailed timing block.... what a mess */
170 #define EDID_BLOCK_IS_DET_TIMING(ptr) ((ptr)[0] | (ptr)[1])
172 #define EDID_DET_TIMING_DOT_CLOCK(ptr) (((ptr)[0] | ((ptr)[1] << 8)) * 10000)
173 #define _HACT_LO(ptr) ((ptr)[2])
174 #define _HBLK_LO(ptr) ((ptr)[3])
175 #define _HACT_HI(ptr) (((ptr)[4] & 0xf0) << 4)
176 #define _HBLK_HI(ptr) (((ptr)[4] & 0x0f) << 8)
177 #define EDID_DET_TIMING_HACTIVE(ptr) (_HACT_LO(ptr) | _HACT_HI(ptr))
178 #define EDID_DET_TIMING_HBLANK(ptr) (_HBLK_LO(ptr) | _HBLK_HI(ptr))
179 #define _VACT_LO(ptr) ((ptr)[5])
180 #define _VBLK_LO(ptr) ((ptr)[6])
181 #define _VACT_HI(ptr) (((ptr)[7] & 0xf0) << 4)
182 #define _VBLK_HI(ptr) (((ptr)[7] & 0x0f) << 8)
183 #define EDID_DET_TIMING_VACTIVE(ptr) (_VACT_LO(ptr) | _VACT_HI(ptr))
184 #define EDID_DET_TIMING_VBLANK(ptr) (_VBLK_LO(ptr) | _VBLK_HI(ptr))
185 #define _HOFF_LO(ptr) ((ptr)[8])
186 #define _HWID_LO(ptr) ((ptr)[9])
187 #define _VOFF_LO(ptr) ((ptr)[10] >> 4)
188 #define _VWID_LO(ptr) ((ptr)[10] & 0xf)
189 #define _HOFF_HI(ptr) (((ptr)[11] & 0xc0) << 2)
190 #define _HWID_HI(ptr) (((ptr)[11] & 0x30) << 4)
191 #define _VOFF_HI(ptr) (((ptr)[11] & 0x0c) << 2)
192 #define _VWID_HI(ptr) (((ptr)[11] & 0x03) << 4)
193 #define EDID_DET_TIMING_HSYNC_OFFSET(ptr) (_HOFF_LO(ptr) | _HOFF_HI(ptr))
194 #define EDID_DET_TIMING_HSYNC_WIDTH(ptr) (_HWID_LO(ptr) | _HWID_HI(ptr))
195 #define EDID_DET_TIMING_VSYNC_OFFSET(ptr) (_VOFF_LO(ptr) | _VOFF_HI(ptr))
196 #define EDID_DET_TIMING_VSYNC_WIDTH(ptr) (_VWID_LO(ptr) | _VWID_HI(ptr))
197 #define _HSZ_LO(ptr) ((ptr)[12])
198 #define _VSZ_LO(ptr) ((ptr)[13])
199 #define _HSZ_HI(ptr) (((ptr)[14] & 0xf0) << 4)
200 #define _VSZ_HI(ptr) (((ptr)[14] & 0x0f) << 8)
201 #define EDID_DET_TIMING_HSIZE(ptr) (_HSZ_LO(ptr) | _HSZ_HI(ptr))
202 #define EDID_DET_TIMING_VSIZE(ptr) (_VSZ_LO(ptr) | _VSZ_HI(ptr))
203 #define EDID_DET_TIMING_HBORDER(ptr) ((ptr)[15])
204 #define EDID_DET_TIMING_VBORDER(ptr) ((ptr)[16])
205 #define EDID_DET_TIMING_FLAGS(ptr) ((ptr)[17])
206 #define EDID_DET_TIMING_FLAG_INTERLACE 0x80
207 #define EDID_DET_TIMING_FLAG_STEREO 0x60 /* stereo or not */
208 #define EDID_DET_TIMING_FLAG_SYNC_SEPARATE 0x18
209 #define EDID_DET_TIMING_FLAG_VSYNC_POSITIVE 0x04
210 #define EDID_DET_TIMING_FLAG_HSYNC_POSITIVE 0x02
211 #define EDID_DET_TIMING_FLAG_STEREO_MODE 0x01 /* stereo mode */
214 /* N.B.: these tests assume that we already checked for detailed timing! */
215 #define EDID_BLOCK_TYPE(ptr) ((ptr)[3])
217 #define EDID_DESC_BLOCK_SIZE 18
218 #define EDID_DESC_BLOCK_TYPE_SERIAL 0xFF
219 #define EDID_DESC_BLOCK_TYPE_ASCII 0xFE
220 #define EDID_DESC_BLOCK_TYPE_RANGE 0xFD
221 #define EDID_DESC_BLOCK_TYPE_NAME 0xFC
222 #define EDID_DESC_BLOCK_TYPE_COLOR_POINT 0xFB
223 #define EDID_DESC_BLOCK_TYPE_STD_TIMING 0xFA
225 /* used for descriptors 0xFF, 0xFE, and 0xFC */
226 #define EDID_DESC_ASCII_DATA_OFFSET 5
227 #define EDID_DESC_ASCII_DATA_LEN 13
229 #define EDID_DESC_RANGE_MIN_VFREQ(ptr) ((ptr)[5]) /* Hz */
230 #define EDID_DESC_RANGE_MAX_VFREQ(ptr) ((ptr)[6]) /* Hz */
231 #define EDID_DESC_RANGE_MIN_HFREQ(ptr) ((ptr)[7]) /* kHz */
232 #define EDID_DESC_RANGE_MAX_HFREQ(ptr) ((ptr)[8]) /* kHz */
233 #define EDID_DESC_RANGE_MAX_CLOCK(ptr) (((ptr)[9]) * 10) /* MHz */
234 #define EDID_DESC_RANGE_HAVE_GTF2(ptr) (((ptr)[10]) == 0x02)
235 #define EDID_DESC_RANGE_GTF2_HFREQ(ptr) (((ptr)[12]) * 2)
236 #define EDID_DESC_RANGE_GTF2_C(ptr) (((ptr)[13]) / 2)
237 #define EDID_DESC_RANGE_GTF2_M(ptr) ((ptr)[14] + ((ptr)[15] << 8))
238 #define EDID_DESC_RANGE_GTF2_K(ptr) ((ptr)[16])
239 #define EDID_DESC_RANGE_GTF2_J(ptr) ((ptr)[17] / 2)
241 #define EDID_DESC_COLOR_WHITEX(ptr)
242 #define EDID_DESC_COLOR_WHITE_INDEX_1(ptr) ((ptr)[5])
243 #define EDID_DESC_COLOR_WHITEX_1(ptr) _CHROMA(ptr, 6, 2, 7)
244 #define EDID_DESC_COLOR_WHITEY_1(ptr) _CHROMA(ptr, 6, 0, 8)
245 #define EDID_DESC_COLOR_GAMMA_1(ptr) _GAMMA(ptr[9])
246 #define EDID_DESC_COLOR_WHITE_INDEX_2(ptr) ((ptr)[10])
247 #define EDID_DESC_COLOR_WHITEX_2(ptr) _CHROMA(ptr, 11, 2, 12)
248 #define EDID_DESC_COLOR_WHITEY_2(ptr) _CHROMA(ptr, 11, 0, 13)
249 #define EDID_DESC_COLOR_GAMMA_2(ptr) _GAMMA(ptr[14])
251 #define EDID_DESC_STD_TIMING_START 5
252 #define EDID_DESC_STD_TIMING_COUNT 6
254 #define EDID_EXT_BLOCK_COUNT(ptr) ((ptr)[126])
256 #endif /* _DEV_VIDEOMODE_EDIDREG_H */