#ifndef __DRM_EDID_H__ #define __DRM_EDID_H__ #include #define EDID_LENGTH 128 #define DDC_ADDR 0x50 #ifdef BIG_ENDIAN #error "EDID structure is little endian, need big endian versions" #endif struct est_timings { u8 t1; u8 t2; u8 mfg_rsvd; } __attribute__((packed)); struct std_timing { u8 hsize; /* need to multiply by 8 then add 248 */ u8 vfreq:6; /* need to add 60 */ u8 aspect_ratio:2; /* 00=16:10, 01=4:3, 10=5:4, 11=16:9 */ } __attribute__((packed)); /* If detailed data is pixel timing */ struct detailed_pixel_timing { u8 hactive_lo; u8 hblank_lo; u8 hblank_hi:4; u8 hactive_hi:4; u8 vactive_lo; u8 vblank_lo; u8 vblank_hi:4; u8 vactive_hi:4; u8 hsync_offset_lo; u8 hsync_pulse_width_lo; u8 vsync_pulse_width_lo:4; u8 vsync_offset_lo:4; u8 hsync_pulse_width_hi:2; u8 hsync_offset_hi:2; u8 vsync_pulse_width_hi:2; u8 vsync_offset_hi:2; u8 width_mm_lo; u8 height_mm_lo; u8 height_mm_hi:4; u8 width_mm_hi:4; u8 hborder; u8 vborder; u8 unknown0:1; u8 vsync_positive:1; u8 hsync_positive:1; u8 separate_sync:2; u8 stereo:1; u8 unknown6:1; u8 interlaced:1; } __attribute__((packed)); /* If it's not pixel timing, it'll be one of the below */ struct detailed_data_string { u8 str[13]; } __attribute__((packed)); struct detailed_data_monitor_range { u8 min_vfreq; u8 max_vfreq; u8 min_hfreq_khz; u8 max_hfreq_khz; u8 pixel_clock_mhz; /* need to multiply by 10 */ u16 sec_gtf_toggle; /* A000=use above, 20=use below */ /* FIXME: byte order */ u8 hfreq_start_khz; /* need to multiply by 2 */ u8 c; /* need to divide by 2 */ u16 m; /* FIXME: byte order */ u8 k; u8 j; /* need to divide by 2 */ } __attribute__((packed)); struct detailed_data_wpindex { u8 white_y_lo:2; u8 white_x_lo:2; u8 pad:4; u8 white_x_hi; u8 white_y_hi; u8 gamma; /* need to divide by 100 then add 1 */ } __attribute__((packed)); struct detailed_data_color_point { u8 windex1; u8 wpindex1[3]; u8 windex2; u8 wpindex2[3]; } __attribute__((packed)); struct detailed_non_pixel { u8 pad1; u8 type; /* ff=serial, fe=string, fd=monitor range, fc=monitor name fb=color point data, fa=standard timing data, f9=undefined, f8=mfg. reserved */ u8 pad2; union { struct detailed_data_string str; struct detailed_data_monitor_range range; struct detailed_data_wpindex color; struct std_timing timings[5]; } data; } __attribute__((packed)); #define EDID_DETAIL_STD_MODES 0xfa #define EDID_DETAIL_MONITOR_CPDATA 0xfb #define EDID_DETAIL_MONITOR_NAME 0xfc #define EDID_DETAIL_MONITOR_RANGE 0xfd #define EDID_DETAIL_MONITOR_STRING 0xfe #define EDID_DETAIL_MONITOR_SERIAL 0xff struct detailed_timing { u16 pixel_clock; /* need to multiply by 10 KHz */ /* FIXME: byte order */ union { struct detailed_pixel_timing pixel_data; struct detailed_non_pixel other_data; } data; } __attribute__((packed)); struct edid { u8 header[8]; /* Vendor & product info */ u16 mfg_id; /* FIXME: byte order */ u16 prod_code; /* FIXME: byte order */ u32 serial; /* FIXME: byte order */ u8 mfg_week; u8 mfg_year; /* EDID version */ u8 version; u8 revision; /* Display info: */ /* input definition */ u8 serration_vsync:1; u8 sync_on_green:1; u8 composite_sync:1; u8 separate_syncs:1; u8 blank_to_black:1; u8 video_level:2; u8 digital:1; /* bits below must be zero if set */ u8 width_cm; u8 height_cm; u8 gamma; /* feature support */ u8 default_gtf:1; u8 preferred_timing:1; u8 standard_color:1; u8 display_type:2; /* 00=mono, 01=rgb, 10=non-rgb, 11=unknown */ u8 pm_active_off:1; u8 pm_suspend:1; u8 pm_standby:1; /* Color characteristics */ u8 red_green_lo; u8 black_white_lo; u8 red_x; u8 red_y; u8 green_x; u8 green_y; u8 blue_x; u8 blue_y; u8 white_x; u8 white_y; /* Est. timings and mfg rsvd timings*/ struct est_timings established_timings; /* Standard timings 1-8*/ struct std_timing standard_timings[8]; /* Detailing timings 1-4 */ struct detailed_timing detailed_timings[4]; /* Number of 128 byte ext. blocks */ u8 extensions; /* Checksum */ u8 checksum; } __attribute__((packed)); #endif /* __DRM_EDID_H__ */ href='#n37'>37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412