edid.h (19536B)
1 /* 2 * edid.h: defines to parse an EDID block 3 * 4 * This file contains all information to interpret a standard EDIC block 5 * transmitted by a display device via DDC (Display Data Channel). So far 6 * there is no information to deal with optional EDID blocks. 7 * DDC is a Trademark of VESA (Video Electronics Standard Association). 8 * 9 * Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE> 10 */ 11 12 #ifndef _EDID_H_ 13 #define _EDID_H_ 14 15 #include <X11/Xmd.h> 16 17 #ifndef _X_EXPORT 18 #include <X11/Xfuncproto.h> 19 #endif 20 21 /* read complete EDID record */ 22 #define EDID1_LEN 128 23 #define BITS_PER_BYTE 9 24 #define NUM BITS_PER_BYTE*EDID1_LEN 25 #define HEADER 6 26 27 #define STD_TIMINGS 8 28 #define DET_TIMINGS 4 29 30 #ifdef _PARSE_EDID_ 31 32 /* header: 0x00 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0x00 */ 33 #define HEADER_SECTION 0 34 #define HEADER_LENGTH 8 35 36 /* vendor section */ 37 #define VENDOR_SECTION (HEADER_SECTION + HEADER_LENGTH) 38 #define V_MANUFACTURER 0 39 #define V_PROD_ID (V_MANUFACTURER + 2) 40 #define V_SERIAL (V_PROD_ID + 2) 41 #define V_WEEK (V_SERIAL + 4) 42 #define V_YEAR (V_WEEK + 1) 43 #define VENDOR_LENGTH (V_YEAR + 1) 44 45 /* EDID version */ 46 #define VERSION_SECTION (VENDOR_SECTION + VENDOR_LENGTH) 47 #define V_VERSION 0 48 #define V_REVISION (V_VERSION + 1) 49 #define VERSION_LENGTH (V_REVISION + 1) 50 51 /* display information */ 52 #define DISPLAY_SECTION (VERSION_SECTION + VERSION_LENGTH) 53 #define D_INPUT 0 54 #define D_HSIZE (D_INPUT + 1) 55 #define D_VSIZE (D_HSIZE + 1) 56 #define D_GAMMA (D_VSIZE + 1) 57 #define FEAT_S (D_GAMMA + 1) 58 #define D_RG_LOW (FEAT_S + 1) 59 #define D_BW_LOW (D_RG_LOW + 1) 60 #define D_REDX (D_BW_LOW + 1) 61 #define D_REDY (D_REDX + 1) 62 #define D_GREENX (D_REDY + 1) 63 #define D_GREENY (D_GREENX + 1) 64 #define D_BLUEX (D_GREENY + 1) 65 #define D_BLUEY (D_BLUEX + 1) 66 #define D_WHITEX (D_BLUEY + 1) 67 #define D_WHITEY (D_WHITEX + 1) 68 #define DISPLAY_LENGTH (D_WHITEY + 1) 69 70 /* supported VESA and other standard timings */ 71 #define ESTABLISHED_TIMING_SECTION (DISPLAY_SECTION + DISPLAY_LENGTH) 72 #define E_T1 0 73 #define E_T2 (E_T1 + 1) 74 #define E_TMANU (E_T2 + 1) 75 #define E_TIMING_LENGTH (E_TMANU + 1) 76 77 /* non predefined standard timings supported by display */ 78 #define STD_TIMING_SECTION (ESTABLISHED_TIMING_SECTION + E_TIMING_LENGTH) 79 #define STD_TIMING_INFO_LEN 2 80 #define STD_TIMING_INFO_NUM STD_TIMINGS 81 #define STD_TIMING_LENGTH (STD_TIMING_INFO_LEN * STD_TIMING_INFO_NUM) 82 83 /* detailed timing info of non standard timings */ 84 #define DET_TIMING_SECTION (STD_TIMING_SECTION + STD_TIMING_LENGTH) 85 #define DET_TIMING_INFO_LEN 18 86 #define MONITOR_DESC_LEN DET_TIMING_INFO_LEN 87 #define DET_TIMING_INFO_NUM DET_TIMINGS 88 #define DET_TIMING_LENGTH (DET_TIMING_INFO_LEN * DET_TIMING_INFO_NUM) 89 90 /* number of EDID sections to follow */ 91 #define NO_EDID (DET_TIMING_SECTION + DET_TIMING_LENGTH) 92 /* one byte checksum */ 93 #define CHECKSUM (NO_EDID + 1) 94 95 #if (CHECKSUM != (EDID1_LEN - 1)) 96 #error "EDID1 length != 128!" 97 #endif 98 99 #define SECTION(x,y) (Uchar *)(x + y) 100 #define GET_ARRAY(y) ((Uchar *)(c + y)) 101 #define GET(y) *(Uchar *)(c + y) 102 103 /* extract information from vendor section */ 104 #define _PROD_ID(x) x[0] + (x[1] << 8); 105 #define PROD_ID _PROD_ID(GET_ARRAY(V_PROD_ID)) 106 #define _SERIAL_NO(x) x[0] + (x[1] << 8) + (x[2] << 16) + (x[3] << 24) 107 #define SERIAL_NO _SERIAL_NO(GET_ARRAY(V_SERIAL)) 108 #define _YEAR(x) (x & 0xFF) + 1990 109 #define YEAR _YEAR(GET(V_YEAR)) 110 #define WEEK GET(V_WEEK) & 0xFF 111 #define _L1(x) ((x[0] & 0x7C) >> 2) + '@' 112 #define _L2(x) ((x[0] & 0x03) << 3) + ((x[1] & 0xE0) >> 5) + '@' 113 #define _L3(x) (x[1] & 0x1F) + '@'; 114 #define L1 _L1(GET_ARRAY(V_MANUFACTURER)) 115 #define L2 _L2(GET_ARRAY(V_MANUFACTURER)) 116 #define L3 _L3(GET_ARRAY(V_MANUFACTURER)) 117 118 /* extract information from version section */ 119 #define VERSION GET(V_VERSION) 120 #define REVISION GET(V_REVISION) 121 122 /* extract information from display section */ 123 #define _INPUT_TYPE(x) ((x & 0x80) >> 7) 124 #define INPUT_TYPE _INPUT_TYPE(GET(D_INPUT)) 125 #define _INPUT_VOLTAGE(x) ((x & 0x60) >> 5) 126 #define INPUT_VOLTAGE _INPUT_VOLTAGE(GET(D_INPUT)) 127 #define _SETUP(x) ((x & 0x10) >> 4) 128 #define SETUP _SETUP(GET(D_INPUT)) 129 #define _SYNC(x) (x & 0x0F) 130 #define SYNC _SYNC(GET(D_INPUT)) 131 #define _DFP(x) (x & 0x01) 132 #define DFP _DFP(GET(D_INPUT)) 133 #define _BPC(x) ((x & 0x70) >> 4) 134 #define BPC _BPC(GET(D_INPUT)) 135 #define _DIGITAL_INTERFACE(x) (x & 0x0F) 136 #define DIGITAL_INTERFACE _DIGITAL_INTERFACE(GET(D_INPUT)) 137 #define _GAMMA(x) (x == 0xff ? 0.0 : ((x + 100.0)/100.0)) 138 #define GAMMA _GAMMA(GET(D_GAMMA)) 139 #define HSIZE_MAX GET(D_HSIZE) 140 #define VSIZE_MAX GET(D_VSIZE) 141 #define _DPMS(x) ((x & 0xE0) >> 5) 142 #define DPMS _DPMS(GET(FEAT_S)) 143 #define _DISPLAY_TYPE(x) ((x & 0x18) >> 3) 144 #define DISPLAY_TYPE _DISPLAY_TYPE(GET(FEAT_S)) 145 #define _MSC(x) (x & 0x7) 146 #define MSC _MSC(GET(FEAT_S)) 147 148 /* color characteristics */ 149 #define CC_L(x,y) ((x & (0x03 << y)) >> y) 150 #define CC_H(x) (x << 2) 151 #define I_CC(x,y,z) CC_H(y) | CC_L(x,z) 152 #define F_CC(x) ((x)/1024.0) 153 #define REDX F_CC(I_CC((GET(D_RG_LOW)),(GET(D_REDX)),6)) 154 #define REDY F_CC(I_CC((GET(D_RG_LOW)),(GET(D_REDY)),4)) 155 #define GREENX F_CC(I_CC((GET(D_RG_LOW)),(GET(D_GREENX)),2)) 156 #define GREENY F_CC(I_CC((GET(D_RG_LOW)),(GET(D_GREENY)),0)) 157 #define BLUEX F_CC(I_CC((GET(D_BW_LOW)),(GET(D_BLUEX)),6)) 158 #define BLUEY F_CC(I_CC((GET(D_BW_LOW)),(GET(D_BLUEY)),4)) 159 #define WHITEX F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEX)),2)) 160 #define WHITEY F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEY)),0)) 161 162 /* extract information from standard timing section */ 163 #define T1 GET(E_T1) 164 #define T2 GET(E_T2) 165 #define T_MANU GET(E_TMANU) 166 167 /* extract information from established timing section */ 168 #define _VALID_TIMING(x) !(((x[0] == 0x01) && (x[1] == 0x01)) \ 169 || ((x[0] == 0x00) && (x[1] == 0x00)) \ 170 || ((x[0] == 0x20) && (x[1] == 0x20)) ) 171 #define VALID_TIMING _VALID_TIMING(c) 172 #define _HSIZE1(x) ((x[0] + 31) * 8) 173 #define HSIZE1 _HSIZE1(c) 174 #define RATIO(x) ((x[1] & 0xC0) >> 6) 175 #define RATIO1_1 0 176 /* EDID Ver. 1.3 redefined this */ 177 #define RATIO16_10 RATIO1_1 178 #define RATIO4_3 1 179 #define RATIO5_4 2 180 #define RATIO16_9 3 181 #define _VSIZE1(x,y,r) switch(RATIO(x)){ \ 182 case RATIO1_1: y = ((v->version > 1 || v->revision > 2) \ 183 ? (_HSIZE1(x) * 10) / 16 : _HSIZE1(x)); break; \ 184 case RATIO4_3: y = _HSIZE1(x) * 3 / 4; break; \ 185 case RATIO5_4: y = _HSIZE1(x) * 4 / 5; break; \ 186 case RATIO16_9: y = _HSIZE1(x) * 9 / 16; break; \ 187 } 188 #define VSIZE1(x) _VSIZE1(c,x,v) 189 #define _REFRESH_R(x) (x[1] & 0x3F) + 60 190 #define REFRESH_R _REFRESH_R(c) 191 #define _ID_LOW(x) x[0] 192 #define ID_LOW _ID_LOW(c) 193 #define _ID_HIGH(x) (x[1] << 8) 194 #define ID_HIGH _ID_HIGH(c) 195 #define STD_TIMING_ID (ID_LOW | ID_HIGH) 196 #define _NEXT_STD_TIMING(x) (x = (x + STD_TIMING_INFO_LEN)) 197 #define NEXT_STD_TIMING _NEXT_STD_TIMING(c) 198 199 /* EDID Ver. >= 1.2 */ 200 /** 201 * Returns true if the pointer is the start of a monitor descriptor block 202 * instead of a detailed timing descriptor. 203 * 204 * Checking the reserved pad fields for zeroes fails on some monitors with 205 * broken empty ASCII strings. Only the first two bytes are reliable. 206 */ 207 #define _IS_MONITOR_DESC(x) (x[0] == 0 && x[1] == 0) 208 #define IS_MONITOR_DESC _IS_MONITOR_DESC(c) 209 #define _PIXEL_CLOCK(x) (x[0] + (x[1] << 8)) * 10000 210 #define PIXEL_CLOCK _PIXEL_CLOCK(c) 211 #define _H_ACTIVE(x) (x[2] + ((x[4] & 0xF0) << 4)) 212 #define H_ACTIVE _H_ACTIVE(c) 213 #define _H_BLANK(x) (x[3] + ((x[4] & 0x0F) << 8)) 214 #define H_BLANK _H_BLANK(c) 215 #define _V_ACTIVE(x) (x[5] + ((x[7] & 0xF0) << 4)) 216 #define V_ACTIVE _V_ACTIVE(c) 217 #define _V_BLANK(x) (x[6] + ((x[7] & 0x0F) << 8)) 218 #define V_BLANK _V_BLANK(c) 219 #define _H_SYNC_OFF(x) (x[8] + ((x[11] & 0xC0) << 2)) 220 #define H_SYNC_OFF _H_SYNC_OFF(c) 221 #define _H_SYNC_WIDTH(x) (x[9] + ((x[11] & 0x30) << 4)) 222 #define H_SYNC_WIDTH _H_SYNC_WIDTH(c) 223 #define _V_SYNC_OFF(x) ((x[10] >> 4) + ((x[11] & 0x0C) << 2)) 224 #define V_SYNC_OFF _V_SYNC_OFF(c) 225 #define _V_SYNC_WIDTH(x) ((x[10] & 0x0F) + ((x[11] & 0x03) << 4)) 226 #define V_SYNC_WIDTH _V_SYNC_WIDTH(c) 227 #define _H_SIZE(x) (x[12] + ((x[14] & 0xF0) << 4)) 228 #define H_SIZE _H_SIZE(c) 229 #define _V_SIZE(x) (x[13] + ((x[14] & 0x0F) << 8)) 230 #define V_SIZE _V_SIZE(c) 231 #define _H_BORDER(x) (x[15]) 232 #define H_BORDER _H_BORDER(c) 233 #define _V_BORDER(x) (x[16]) 234 #define V_BORDER _V_BORDER(c) 235 #define _INTERLACED(x) ((x[17] & 0x80) >> 7) 236 #define INTERLACED _INTERLACED(c) 237 #define _STEREO(x) ((x[17] & 0x60) >> 5) 238 #define STEREO _STEREO(c) 239 #define _STEREO1(x) (x[17] & 0x1) 240 #define STEREO1 _STEREO(c) 241 #define _SYNC_T(x) ((x[17] & 0x18) >> 3) 242 #define SYNC_T _SYNC_T(c) 243 #define _MISC(x) ((x[17] & 0x06) >> 1) 244 #define MISC _MISC(c) 245 246 #define _MONITOR_DESC_TYPE(x) x[3] 247 #define MONITOR_DESC_TYPE _MONITOR_DESC_TYPE(c) 248 #define SERIAL_NUMBER 0xFF 249 #define ASCII_STR 0xFE 250 #define MONITOR_RANGES 0xFD 251 #define _MIN_V_OFFSET(x) ((!!(x[4] & 0x01)) * 255) 252 #define _MAX_V_OFFSET(x) ((!!(x[4] & 0x02)) * 255) 253 #define _MIN_H_OFFSET(x) ((!!(x[4] & 0x04)) * 255) 254 #define _MAX_H_OFFSET(x) ((!!(x[4] & 0x08)) * 255) 255 #define _MIN_V(x) x[5] 256 #define MIN_V (_MIN_V(c) + _MIN_V_OFFSET(c)) 257 #define _MAX_V(x) x[6] 258 #define MAX_V (_MAX_V(c) + _MAX_V_OFFSET(c)) 259 #define _MIN_H(x) x[7] 260 #define MIN_H (_MIN_H(c) + _MIN_H_OFFSET(c)) 261 #define _MAX_H(x) x[8] 262 #define MAX_H (_MAX_H(c) + _MAX_H_OFFSET(c)) 263 #define _MAX_CLOCK(x) x[9] 264 #define MAX_CLOCK _MAX_CLOCK(c) 265 #define _DEFAULT_GTF(x) (x[10] == 0x00) 266 #define DEFAULT_GTF _DEFAULT_GTF(c) 267 #define _RANGE_LIMITS_ONLY(x) (x[10] == 0x01) 268 #define RANGE_LIMITS_ONLY _RANGE_LIMITS_ONLY(c) 269 #define _HAVE_2ND_GTF(x) (x[10] == 0x02) 270 #define HAVE_2ND_GTF _HAVE_2ND_GTF(c) 271 #define _F_2ND_GTF(x) (x[12] * 2) 272 #define F_2ND_GTF _F_2ND_GTF(c) 273 #define _C_2ND_GTF(x) (x[13] / 2) 274 #define C_2ND_GTF _C_2ND_GTF(c) 275 #define _M_2ND_GTF(x) (x[14] + (x[15] << 8)) 276 #define M_2ND_GTF _M_2ND_GTF(c) 277 #define _K_2ND_GTF(x) (x[16]) 278 #define K_2ND_GTF _K_2ND_GTF(c) 279 #define _J_2ND_GTF(x) (x[17] / 2) 280 #define J_2ND_GTF _J_2ND_GTF(c) 281 #define _HAVE_CVT(x) (x[10] == 0x04) 282 #define HAVE_CVT _HAVE_CVT(c) 283 #define _MAX_CLOCK_KHZ(x) (x[12] >> 2) 284 #define MAX_CLOCK_KHZ (MAX_CLOCK * 10000) - (_MAX_CLOCK_KHZ(c) * 250) 285 #define _MAXWIDTH(x) ((x[13] == 0 ? 0 : x[13] + ((x[12] & 0x03) << 8)) * 8) 286 #define MAXWIDTH _MAXWIDTH(c) 287 #define _SUPPORTED_ASPECT(x) x[14] 288 #define SUPPORTED_ASPECT _SUPPORTED_ASPECT(c) 289 #define SUPPORTED_ASPECT_4_3 0x80 290 #define SUPPORTED_ASPECT_16_9 0x40 291 #define SUPPORTED_ASPECT_16_10 0x20 292 #define SUPPORTED_ASPECT_5_4 0x10 293 #define SUPPORTED_ASPECT_15_9 0x08 294 #define _PREFERRED_ASPECT(x) ((x[15] & 0xe0) >> 5) 295 #define PREFERRED_ASPECT _PREFERRED_ASPECT(c) 296 #define PREFERRED_ASPECT_4_3 0 297 #define PREFERRED_ASPECT_16_9 1 298 #define PREFERRED_ASPECT_16_10 2 299 #define PREFERRED_ASPECT_5_4 3 300 #define PREFERRED_ASPECT_15_9 4 301 #define _SUPPORTED_BLANKING(x) ((x[15] & 0x18) >> 3) 302 #define SUPPORTED_BLANKING _SUPPORTED_BLANKING(c) 303 #define CVT_STANDARD 0x01 304 #define CVT_REDUCED 0x02 305 #define _SUPPORTED_SCALING(x) ((x[16] & 0xf0) >> 4) 306 #define SUPPORTED_SCALING _SUPPORTED_SCALING(c) 307 #define SCALING_HSHRINK 0x08 308 #define SCALING_HSTRETCH 0x04 309 #define SCALING_VSHRINK 0x02 310 #define SCALING_VSTRETCH 0x01 311 #define _PREFERRED_REFRESH(x) x[17] 312 #define PREFERRED_REFRESH _PREFERRED_REFRESH(c) 313 314 #define MONITOR_NAME 0xFC 315 #define ADD_COLOR_POINT 0xFB 316 #define WHITEX F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEX)),2)) 317 #define WHITEY F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEY)),0)) 318 #define _WHITEX_ADD(x,y) F_CC(I_CC(((*(x + y))),(*(x + y + 1)),2)) 319 #define _WHITEY_ADD(x,y) F_CC(I_CC(((*(x + y))),(*(x + y + 2)),0)) 320 #define _WHITE_INDEX1(x) x[5] 321 #define WHITE_INDEX1 _WHITE_INDEX1(c) 322 #define _WHITE_INDEX2(x) x[10] 323 #define WHITE_INDEX2 _WHITE_INDEX2(c) 324 #define WHITEX1 _WHITEX_ADD(c,6) 325 #define WHITEY1 _WHITEY_ADD(c,6) 326 #define WHITEX2 _WHITEX_ADD(c,12) 327 #define WHITEY2 _WHITEY_ADD(c,12) 328 #define _WHITE_GAMMA1(x) _GAMMA(x[9]) 329 #define WHITE_GAMMA1 _WHITE_GAMMA1(c) 330 #define _WHITE_GAMMA2(x) _GAMMA(x[14]) 331 #define WHITE_GAMMA2 _WHITE_GAMMA2(c) 332 #define ADD_STD_TIMINGS 0xFA 333 #define COLOR_MANAGEMENT_DATA 0xF9 334 #define CVT_3BYTE_DATA 0xF8 335 #define ADD_EST_TIMINGS 0xF7 336 #define ADD_DUMMY 0x10 337 338 #define _NEXT_DT_MD_SECTION(x) (x = (x + DET_TIMING_INFO_LEN)) 339 #define NEXT_DT_MD_SECTION _NEXT_DT_MD_SECTION(c) 340 341 #endif /* _PARSE_EDID_ */ 342 343 /* input type */ 344 #define DIGITAL(x) x 345 346 /* DFP */ 347 #define DFP1(x) x 348 349 /* input voltage level */ 350 #define V070 0 /* 0.700V/0.300V */ 351 #define V071 1 /* 0.714V/0.286V */ 352 #define V100 2 /* 1.000V/0.400V */ 353 #define V007 3 /* 0.700V/0.000V */ 354 355 /* Signal level setup */ 356 #define SIG_SETUP(x) (x) 357 358 /* sync characteristics */ 359 #define SEP_SYNC(x) (x & 0x08) 360 #define COMP_SYNC(x) (x & 0x04) 361 #define SYNC_O_GREEN(x) (x & 0x02) 362 #define SYNC_SERR(x) (x & 0x01) 363 364 /* DPMS features */ 365 #define DPMS_STANDBY(x) (x & 0x04) 366 #define DPMS_SUSPEND(x) (x & 0x02) 367 #define DPMS_OFF(x) (x & 0x01) 368 369 /* display type, analog */ 370 #define DISP_MONO 0 371 #define DISP_RGB 1 372 #define DISP_MULTCOLOR 2 373 374 /* display color encodings, digital */ 375 #define DISP_YCRCB444 0x01 376 #define DISP_YCRCB422 0x02 377 378 /* Msc stuff EDID Ver > 1.1 */ 379 #define STD_COLOR_SPACE(x) (x & 0x4) 380 #define PREFERRED_TIMING_MODE(x) (x & 0x2) 381 #define GFT_SUPPORTED(x) (x & 0x1) 382 #define GTF_SUPPORTED(x) (x & 0x1) 383 #define CVT_SUPPORTED(x) (x & 0x1) 384 385 /* detailed timing misc */ 386 #define IS_INTERLACED(x) (x) 387 #define IS_STEREO(x) (x) 388 #define IS_RIGHT_STEREO(x) (x & 0x01) 389 #define IS_LEFT_STEREO(x) (x & 0x02) 390 #define IS_4WAY_STEREO(x) (x & 0x03) 391 #define IS_RIGHT_ON_SYNC(x) IS_RIGHT_STEREO(x) 392 #define IS_LEFT_ON_SYNC(x) IS_LEFT_STEREO(x) 393 394 typedef unsigned int Uint; 395 typedef unsigned char Uchar; 396 397 struct vendor { 398 char name[4]; 399 int prod_id; 400 Uint serial; 401 int week; 402 int year; 403 }; 404 405 struct edid_version { 406 int version; 407 int revision; 408 }; 409 410 struct disp_features { 411 unsigned int input_type:1; 412 unsigned int input_voltage:2; 413 unsigned int input_setup:1; 414 unsigned int input_sync:5; 415 unsigned int input_dfp:1; 416 unsigned int input_bpc:3; 417 unsigned int input_interface:4; 418 /* 15 bit hole */ 419 int hsize; 420 int vsize; 421 float gamma; 422 unsigned int dpms:3; 423 unsigned int display_type:2; 424 unsigned int msc:3; 425 float redx; 426 float redy; 427 float greenx; 428 float greeny; 429 float bluex; 430 float bluey; 431 float whitex; 432 float whitey; 433 }; 434 435 struct established_timings { 436 Uchar t1; 437 Uchar t2; 438 Uchar t_manu; 439 }; 440 441 struct std_timings { 442 int hsize; 443 int vsize; 444 int refresh; 445 CARD16 id; 446 }; 447 448 struct detailed_timings { 449 int clock; 450 int h_active; 451 int h_blanking; 452 int v_active; 453 int v_blanking; 454 int h_sync_off; 455 int h_sync_width; 456 int v_sync_off; 457 int v_sync_width; 458 int h_size; 459 int v_size; 460 int h_border; 461 int v_border; 462 unsigned int interlaced:1; 463 unsigned int stereo:2; 464 unsigned int sync:2; 465 unsigned int misc:2; 466 unsigned int stereo_1:1; 467 }; 468 469 #define DT 0 470 #define DS_SERIAL 0xFF 471 #define DS_ASCII_STR 0xFE 472 #define DS_NAME 0xFC 473 #define DS_RANGES 0xFD 474 #define DS_WHITE_P 0xFB 475 #define DS_STD_TIMINGS 0xFA 476 #define DS_CMD 0xF9 477 #define DS_CVT 0xF8 478 #define DS_EST_III 0xF7 479 #define DS_DUMMY 0x10 480 #define DS_UNKOWN 0x100 /* type is an int */ 481 #define DS_VENDOR 0x101 482 #define DS_VENDOR_MAX 0x110 483 484 /* 485 * Display range limit Descriptor of EDID version1, reversion 4 486 */ 487 typedef enum { 488 DR_DEFAULT_GTF, 489 DR_LIMITS_ONLY, 490 DR_SECONDARY_GTF, 491 DR_CVT_SUPPORTED = 4, 492 } DR_timing_flags; 493 494 struct monitor_ranges { 495 int min_v; 496 int max_v; 497 int min_h; 498 int max_h; 499 int max_clock; /* in mhz */ 500 int gtf_2nd_f; 501 int gtf_2nd_c; 502 int gtf_2nd_m; 503 int gtf_2nd_k; 504 int gtf_2nd_j; 505 int max_clock_khz; 506 int maxwidth; /* in pixels */ 507 char supported_aspect; 508 char preferred_aspect; 509 char supported_blanking; 510 char supported_scaling; 511 int preferred_refresh; /* in hz */ 512 DR_timing_flags display_range_timing_flags; 513 }; 514 515 struct whitePoints { 516 int index; 517 float white_x; 518 float white_y; 519 float white_gamma; 520 }; 521 522 struct cvt_timings { 523 int width; 524 int height; 525 int rate; 526 int rates; 527 }; 528 529 /* 530 * Be careful when adding new sections; this structure can't grow, it's 531 * embedded in the middle of xf86Monitor which is ABI. Sizes below are 532 * in bytes, for ILP32 systems. If all else fails just copy the section 533 * literally like serial and friends. 534 */ 535 struct detailed_monitor_section { 536 int type; 537 union { 538 struct detailed_timings d_timings; /* 56 */ 539 Uchar serial[13]; 540 Uchar ascii_data[13]; 541 Uchar name[13]; 542 struct monitor_ranges ranges; /* 60 */ 543 struct std_timings std_t[5]; /* 80 */ 544 struct whitePoints wp[2]; /* 32 */ 545 /* color management data */ 546 struct cvt_timings cvt[4]; /* 64 */ 547 Uchar est_iii[6]; /* 6 */ 548 } section; /* max: 80 */ 549 }; 550 551 /* flags */ 552 #define MONITOR_EDID_COMPLETE_RAWDATA 0x01 553 /* old, don't use */ 554 #define EDID_COMPLETE_RAWDATA 0x01 555 556 /* 557 * For DisplayID devices, only the scrnIndex, flags, and rawData fields 558 * are meaningful. For EDID, they all are. 559 */ 560 typedef struct { 561 int scrnIndex; 562 struct vendor vendor; 563 struct edid_version ver; 564 struct disp_features features; 565 struct established_timings timings1; 566 struct std_timings timings2[8]; 567 struct detailed_monitor_section det_mon[4]; 568 unsigned long flags; 569 int no_sections; 570 Uchar *rawData; 571 } xf86Monitor, *xf86MonPtr; 572 573 extern _X_EXPORT xf86MonPtr ConfiguredMonitor; 574 575 #define EXT_TAG 0 576 #define EXT_REV 1 577 #define CEA_EXT 0x02 578 #define VTB_EXT 0x10 579 #define DI_EXT 0x40 580 #define LS_EXT 0x50 581 #define MI_EXT 0x60 582 583 #define CEA_EXT_MIN_DATA_OFFSET 4 584 #define CEA_EXT_MAX_DATA_OFFSET 127 585 #define CEA_EXT_DET_TIMING_NUM 6 586 587 #define IEEE_ID_HDMI 0x000C03 588 #define CEA_AUDIO_BLK 1 589 #define CEA_VIDEO_BLK 2 590 #define CEA_VENDOR_BLK 3 591 #define CEA_SPEAKER_ALLOC_BLK 4 592 #define CEA_VESA_DTC_BLK 5 593 #define VENDOR_SUPPORT_AI(x) ((x) >> 7) 594 #define VENDOR_SUPPORT_DC_48bit(x) ( ( (x) >> 6) & 0x01) 595 #define VENDOR_SUPPORT_DC_36bit(x) ( ( (x) >> 5) & 0x01) 596 #define VENDOR_SUPPORT_DC_30bit(x) ( ( (x) >> 4) & 0x01) 597 #define VENDOR_SUPPORT_DC_Y444(x) ( ( (x) >> 3) & 0x01) 598 #define VENDOR_LATENCY_PRESENT(x) ( (x) >> 7) 599 #define VENDOR_LATENCY_PRESENT_I(x) ( ( (x) >> 6) & 0x01) 600 #define HDMI_MAX_TMDS_UNIT (5000) 601 602 struct cea_video_block { 603 Uchar video_code; 604 }; 605 606 struct cea_audio_block_descriptor { 607 Uchar audio_code[3]; 608 }; 609 610 struct cea_audio_block { 611 struct cea_audio_block_descriptor descriptor[10]; 612 }; 613 614 struct cea_vendor_block_hdmi { 615 Uchar portB:4; 616 Uchar portA:4; 617 Uchar portD:4; 618 Uchar portC:4; 619 Uchar support_flags; 620 Uchar max_tmds_clock; 621 Uchar latency_present; 622 Uchar video_latency; 623 Uchar audio_latency; 624 Uchar interlaced_video_latency; 625 Uchar interlaced_audio_latency; 626 }; 627 628 struct cea_vendor_block { 629 unsigned char ieee_id[3]; 630 union { 631 struct cea_vendor_block_hdmi hdmi; 632 /* any other vendor blocks we know about */ 633 }; 634 }; 635 636 struct cea_speaker_block { 637 Uchar FLR:1; 638 Uchar LFE:1; 639 Uchar FC:1; 640 Uchar RLR:1; 641 Uchar RC:1; 642 Uchar FLRC:1; 643 Uchar RLRC:1; 644 Uchar FLRW:1; 645 Uchar FLRH:1; 646 Uchar TC:1; 647 Uchar FCH:1; 648 Uchar Resv:5; 649 Uchar ResvByte; 650 }; 651 652 struct cea_data_block { 653 Uchar len:5; 654 Uchar tag:3; 655 union { 656 struct cea_video_block video; 657 struct cea_audio_block audio; 658 struct cea_vendor_block vendor; 659 struct cea_speaker_block speaker; 660 } u; 661 }; 662 663 struct cea_ext_body { 664 Uchar tag; 665 Uchar rev; 666 Uchar dt_offset; 667 Uchar flags; 668 struct cea_data_block data_collection; 669 }; 670 671 #endif /* _EDID_H_ */