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