1 /* $NetBSD: edidreg.h,v 1.4 2014/11/17 00:46:04 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Itronix Inc. 5 * All rights reserved. 6 * 7 * Written by Garrett D'Amore for Itronix Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 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. 20 * 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. 32 */ 33 34 #ifndef _DEV_VIDEOMODE_EDIDREG_H 35 #define _DEV_VIDEOMODE_EDIDREG_H 36 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 57 #define EDID_SIGNATURE { 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0 } 58 59 /* assume x is 16-bit value */ 60 #define EDID_VENDOR_ID(ptr) ((((ptr)[8]) << 8) + ptr[9]) 61 #define EDID_MANFID_0(x) ((((x) >> 10) & 0x1f) + '@') 62 #define EDID_MANFID_1(x) ((((x) >> 5) & 0x1f) + '@') 63 #define EDID_MANFID_2(x) ((((x) >> 0) & 0x1f) + '@') 64 65 /* relative to edid block */ 66 #define EDID_PRODUCT_ID(ptr) (((ptr)[10]) | (((ptr)[11]) << 8)) 67 #define EDID_SERIAL_NUMBER(ptr) (((ptr)[12] << 24) + \ 68 ((ptr)[13] << 16) + \ 69 ((ptr)[14] << 8) + \ 70 (ptr)[15]) 71 72 /* relative to edid block */ 73 #define EDID_WEEK(ptr) ((ptr)[16]) 74 #define EDID_YEAR(ptr) (((ptr)[17]) + 1990) 75 76 #define EDID_VERSION(ptr) ((ptr)[18]) 77 #define EDID_REVISION(ptr) ((ptr)[19]) 78 79 #define EDID_VIDEO_INPUT(ptr) ((ptr)[20]) 80 #define EDID_VIDEO_INPUT_DIGITAL 0x80 81 /* if INPUT_BIT_DIGITAL set */ 82 #define EDID_VIDEO_INPUT_DFP1_COMPAT 0x01 83 /* if INPUT_BIT_DIGITAL not set */ 84 #define EDID_VIDEO_INPUT_BLANK_TO_BLACK 0x10 85 #define EDID_VIDEO_INPUT_SEPARATE_SYNCS 0x08 86 #define EDID_VIDEO_INPUT_COMPOSITE_SYNC 0x04 87 #define EDID_VIDEO_INPUT_SYNC_ON_GRN 0x02 88 #define EDID_VIDEO_INPUT_SERRATION 0x01 89 #define EDID_VIDEO_INPUT_LEVEL(x) (((x) & 0x60) >> 5) 90 /* meanings of level bits are as follows, I don't know names */ 91 /* 0 = 0.7,0.3, 1 = 0.714,0.286, 2 = 1.0,0.4, 3 = 0.7,0.0 */ 92 93 /* relative to edid block */ 94 #define EDID_MAX_HSIZE(ptr) ((ptr)[21]) /* cm */ 95 #define EDID_MAX_VSIZE(ptr) ((ptr)[22]) /* cm */ 96 /* gamma is scaled by 100 (avoid fp), e.g. 213 == 2.13 */ 97 #define _GAMMA(x) ((x) == 0xff ? 100 : ((x) + 100)) 98 #define EDID_GAMMA(ptr) _GAMMA(ptr[23]) 99 100 #define EDID_FEATURES(ptr) ((ptr)[24]) 101 #define EDID_FEATURES_STANDBY 0x80 102 #define EDID_FEATURES_SUSPEND 0x40 103 #define EDID_FEATURES_ACTIVE_OFF 0x20 104 #define EDID_FEATURES_DISP_TYPE(x) (((x) & 0x18) >> 3) 105 #define EDID_FEATURES_DISP_TYPE_MONO 0 106 #define EDID_FEATURES_DISP_TYPE_RGB 1 107 #define EDID_FEATURES_DISP_TYPE_NON_RGB 2 108 #define EDID_FEATURES_DISP_TYPE_UNDEFINED 3 109 #define EDID_FEATURES_STD_COLOR 0x04 110 #define EDID_FEATURES_PREFERRED_TIMING 0x02 111 #define EDID_FEATURES_DEFAULT_GTF 0x01 112 113 /* chroma values 0.0 - 0.999 scaled as 0-999 */ 114 #define _CHLO(byt, shft) (((byt) >> (shft)) & 0x3) 115 #define _CHHI(byt) ((byt) << 2) 116 #define _CHHILO(ptr, l, s, h) (_CHLO((ptr)[l], s) | _CHHI((ptr)[h])) 117 #define _CHROMA(ptr, l, s, h) ((_CHHILO(ptr, l, s, h) * 1000) / 1024) 118 119 #define EDID_CHROMA_REDX(ptr) (_CHROMA(ptr, 25, 6, 27)) 120 #define EDID_CHROMA_REDY(ptr) (_CHROMA(ptr, 25, 4, 28)) 121 #define EDID_CHROMA_GREENX(ptr) (_CHROMA(ptr, 25, 2, 29)) 122 #define EDID_CHROMA_GREENY(ptr) (_CHROMA(ptr, 25, 0, 30)) 123 #define EDID_CHROMA_BLUEX(ptr) (_CHROMA(ptr, 26, 6, 31)) 124 #define EDID_CHROMA_BLUEY(ptr) (_CHROMA(ptr, 26, 4, 32)) 125 #define EDID_CHROMA_WHITEX(ptr) (_CHROMA(ptr, 26, 2, 33)) 126 #define EDID_CHROMA_WHITEY(ptr) (_CHROMA(ptr, 26, 0, 34)) 127 128 /* relative to edid block */ 129 #define EDID_EST_TIMING(ptr) (((ptr)[35] << 8) | (ptr)[36]) 130 #define EDID_EST_TIMING_720_400_70 0x8000 /* 720x400 @ 70Hz */ 131 #define EDID_EST_TIMING_720_400_88 0x4000 /* 720x400 @ 88Hz */ 132 #define EDID_EST_TIMING_640_480_60 0x2000 /* 640x480 @ 60Hz */ 133 #define EDID_EST_TIMING_640_480_67 0x1000 /* 640x480 @ 67Hz */ 134 #define EDID_EST_TIMING_640_480_72 0x0800 /* 640x480 @ 72Hz */ 135 #define EDID_EST_TIMING_640_480_75 0x0400 /* 640x480 @ 75Hz */ 136 #define EDID_EST_TIMING_800_600_56 0x0200 /* 800x600 @ 56Hz */ 137 #define EDID_EST_TIMING_800_600_60 0x0100 /* 800x600 @ 60Hz */ 138 #define EDID_EST_TIMING_800_600_72 0x0080 /* 800x600 @ 72Hz */ 139 #define EDID_EST_TIMING_800_600_75 0x0040 /* 800x600 @ 75Hz */ 140 #define EDID_EST_TIMING_832_624_75 0x0020 /* 832x624 @ 75Hz */ 141 #define EDID_EST_TIMING_1024_768_87I 0x0010 /* 1024x768i @ 87Hz */ 142 #define EDID_EST_TIMING_1024_768_60 0x0008 /* 1024x768 @ 60Hz */ 143 #define EDID_EST_TIMING_1024_768_70 0x0004 /* 1024x768 @ 70Hz */ 144 #define EDID_EST_TIMING_1024_768_75 0x0002 /* 1024x768 @ 75Hz */ 145 #define EDID_EST_TIMING_1280_1024_75 0x0001 /* 1280x1024 @ 75Hz */ 146 147 /* 148 * N.B.: ptr is relative to standard timing block - used for standard timing 149 * descriptors as well as standard timings section of edid! 150 */ 151 #define EDID_STD_TIMING_HRES(ptr) ((((ptr)[0]) * 8) + 248) 152 #define EDID_STD_TIMING_VFREQ(ptr) ((((ptr)[1]) & 0x3f) + 60) 153 #define EDID_STD_TIMING_RATIO(ptr) ((ptr)[1] & 0xc0) 154 #define EDID_STD_TIMING_RATIO_16_10 0x00 155 #define EDID_STD_TIMING_RATIO_4_3 0x40 156 #define EDID_STD_TIMING_RATIO_5_4 0x80 157 #define EDID_STD_TIMING_RATIO_16_9 0xc0 158 159 #define EDID_STD_TIMING_SIZE 16 160 #define EDID_STD_TIMING_COUNT 8 161 162 /* 163 * N.B.: ptr is relative to descriptor block start 164 */ 165 #define EDID_BLOCK_SIZE 18 166 #define EDID_BLOCK_COUNT 4 167 168 /* detailed timing block.... what a mess */ 169 #define EDID_BLOCK_IS_DET_TIMING(ptr) ((ptr)[0] | (ptr)[1]) 170 171 #define EDID_DET_TIMING_DOT_CLOCK(ptr) (((ptr)[0] | ((ptr)[1] << 8)) * 10000) 172 #define _HACT_LO(ptr) ((ptr)[2]) 173 #define _HBLK_LO(ptr) ((ptr)[3]) 174 #define _HACT_HI(ptr) (((ptr)[4] & 0xf0) << 4) 175 #define _HBLK_HI(ptr) (((ptr)[4] & 0x0f) << 8) 176 #define EDID_DET_TIMING_HACTIVE(ptr) (_HACT_LO(ptr) | _HACT_HI(ptr)) 177 #define EDID_DET_TIMING_HBLANK(ptr) (_HBLK_LO(ptr) | _HBLK_HI(ptr)) 178 #define _VACT_LO(ptr) ((ptr)[5]) 179 #define _VBLK_LO(ptr) ((ptr)[6]) 180 #define _VACT_HI(ptr) (((ptr)[7] & 0xf0) << 4) 181 #define _VBLK_HI(ptr) (((ptr)[7] & 0x0f) << 8) 182 #define EDID_DET_TIMING_VACTIVE(ptr) (_VACT_LO(ptr) | _VACT_HI(ptr)) 183 #define EDID_DET_TIMING_VBLANK(ptr) (_VBLK_LO(ptr) | _VBLK_HI(ptr)) 184 #define _HOFF_LO(ptr) ((ptr)[8]) 185 #define _HWID_LO(ptr) ((ptr)[9]) 186 #define _VOFF_LO(ptr) ((ptr)[10] >> 4) 187 #define _VWID_LO(ptr) ((ptr)[10] & 0xf) 188 #define _HOFF_HI(ptr) (((ptr)[11] & 0xc0) << 2) 189 #define _HWID_HI(ptr) (((ptr)[11] & 0x30) << 4) 190 #define _VOFF_HI(ptr) (((ptr)[11] & 0x0c) << 2) 191 #define _VWID_HI(ptr) (((ptr)[11] & 0x03) << 4) 192 #define EDID_DET_TIMING_HSYNC_OFFSET(ptr) (_HOFF_LO(ptr) | _HOFF_HI(ptr)) 193 #define EDID_DET_TIMING_HSYNC_WIDTH(ptr) (_HWID_LO(ptr) | _HWID_HI(ptr)) 194 #define EDID_DET_TIMING_VSYNC_OFFSET(ptr) (_VOFF_LO(ptr) | _VOFF_HI(ptr)) 195 #define EDID_DET_TIMING_VSYNC_WIDTH(ptr) (_VWID_LO(ptr) | _VWID_HI(ptr)) 196 #define _HSZ_LO(ptr) ((ptr)[12]) 197 #define _VSZ_LO(ptr) ((ptr)[13]) 198 #define _HSZ_HI(ptr) (((ptr)[14] & 0xf0) << 4) 199 #define _VSZ_HI(ptr) (((ptr)[14] & 0x0f) << 8) 200 #define EDID_DET_TIMING_HSIZE(ptr) (_HSZ_LO(ptr) | _HSZ_HI(ptr)) 201 #define EDID_DET_TIMING_VSIZE(ptr) (_VSZ_LO(ptr) | _VSZ_HI(ptr)) 202 #define EDID_DET_TIMING_HBORDER(ptr) ((ptr)[15]) 203 #define EDID_DET_TIMING_VBORDER(ptr) ((ptr)[16]) 204 #define EDID_DET_TIMING_FLAGS(ptr) ((ptr)[17]) 205 #define EDID_DET_TIMING_FLAG_INTERLACE 0x80 206 #define EDID_DET_TIMING_FLAG_STEREO 0x60 /* stereo or not */ 207 #define EDID_DET_TIMING_FLAG_SYNC_SEPARATE 0x18 208 #define EDID_DET_TIMING_FLAG_VSYNC_POSITIVE 0x04 209 #define EDID_DET_TIMING_FLAG_HSYNC_POSITIVE 0x02 210 #define EDID_DET_TIMING_FLAG_STEREO_MODE 0x01 /* stereo mode */ 211 212 213 /* N.B.: these tests assume that we already checked for detailed timing! */ 214 #define EDID_BLOCK_TYPE(ptr) ((ptr)[3]) 215 216 #define EDID_DESC_BLOCK_SIZE 18 217 #define EDID_DESC_BLOCK_TYPE_SERIAL 0xFF 218 #define EDID_DESC_BLOCK_TYPE_ASCII 0xFE 219 #define EDID_DESC_BLOCK_TYPE_RANGE 0xFD 220 #define EDID_DESC_BLOCK_TYPE_NAME 0xFC 221 #define EDID_DESC_BLOCK_TYPE_COLOR_POINT 0xFB 222 #define EDID_DESC_BLOCK_TYPE_STD_TIMING 0xFA 223 224 /* used for descriptors 0xFF, 0xFE, and 0xFC */ 225 #define EDID_DESC_ASCII_DATA_OFFSET 5 226 #define EDID_DESC_ASCII_DATA_LEN 13 227 228 #define EDID_DESC_RANGE_MIN_VFREQ(ptr) ((ptr)[5]) /* Hz */ 229 #define EDID_DESC_RANGE_MAX_VFREQ(ptr) ((ptr)[6]) /* Hz */ 230 #define EDID_DESC_RANGE_MIN_HFREQ(ptr) ((ptr)[7]) /* kHz */ 231 #define EDID_DESC_RANGE_MAX_HFREQ(ptr) ((ptr)[8]) /* kHz */ 232 #define EDID_DESC_RANGE_MAX_CLOCK(ptr) (((ptr)[9]) * 10) /* MHz */ 233 #define EDID_DESC_RANGE_HAVE_GTF2(ptr) (((ptr)[10]) == 0x02) 234 #define EDID_DESC_RANGE_GTF2_HFREQ(ptr) (((ptr)[12]) * 2) 235 #define EDID_DESC_RANGE_GTF2_C(ptr) (((ptr)[13]) / 2) 236 #define EDID_DESC_RANGE_GTF2_M(ptr) ((ptr)[14] + ((ptr)[15] << 8)) 237 #define EDID_DESC_RANGE_GTF2_K(ptr) ((ptr)[16]) 238 #define EDID_DESC_RANGE_GTF2_J(ptr) ((ptr)[17] / 2) 239 240 #define EDID_DESC_COLOR_WHITEX(ptr) 241 #define EDID_DESC_COLOR_WHITE_INDEX_1(ptr) ((ptr)[5]) 242 #define EDID_DESC_COLOR_WHITEX_1(ptr) _CHROMA(ptr, 6, 2, 7) 243 #define EDID_DESC_COLOR_WHITEY_1(ptr) _CHROMA(ptr, 6, 0, 8) 244 #define EDID_DESC_COLOR_GAMMA_1(ptr) _GAMMA(ptr[9]) 245 #define EDID_DESC_COLOR_WHITE_INDEX_2(ptr) ((ptr)[10]) 246 #define EDID_DESC_COLOR_WHITEX_2(ptr) _CHROMA(ptr, 11, 2, 12) 247 #define EDID_DESC_COLOR_WHITEY_2(ptr) _CHROMA(ptr, 11, 0, 13) 248 #define EDID_DESC_COLOR_GAMMA_2(ptr) _GAMMA(ptr[14]) 249 250 #define EDID_DESC_STD_TIMING_START 5 251 #define EDID_DESC_STD_TIMING_COUNT 6 252 253 #define EDID_EXT_BLOCK_COUNT(ptr) ((ptr)[126]) 254 255 #endif /* _DEV_VIDEOMODE_EDIDREG_H */ 256
Indexes created Sat Sep 27 21:09:56 GMT 2025