hdmi.h revision 1.8
1 /* $NetBSD: hdmi.h,v 1.8 2021/12/19 01:55:05 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_HDMI_H_ 33 #define _LINUX_HDMI_H_ 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/errno.h> 38 #include <sys/systm.h> 39 40 enum hdmi_3d_structure { 41 HDMI_3D_STRUCTURE_INVALID = -1, 42 HDMI_3D_STRUCTURE_FRAME_PACKING = 0, 43 HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE = 1, 44 HDMI_3D_STRUCTURE_LINE_ALTERNATIVE = 2, 45 HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL = 3, 46 HDMI_3D_STRUCTURE_L_DEPTH = 4, 47 HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH = 5, 48 HDMI_3D_STRUCTURE_TOP_AND_BOTTOM = 6, 49 HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8, 50 }; 51 52 enum hdmi_active_aspect { 53 HDMI_ACTIVE_ASPECT_16_9_TOP = 2, 54 HDMI_ACTIVE_ASPECT_14_9_TOP = 3, 55 HDMI_ACTIVE_ASPECT_16_9_CENTER = 4, 56 HDMI_ACTIVE_ASPECT_PICTURE = 8, 57 HDMI_ACTIVE_ASPECT_4_3 = 9, 58 HDMI_ACTIVE_ASPECT_16_9 = 10, 59 HDMI_ACTIVE_ASPECT_14_9 = 11, 60 HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13, 61 HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14, 62 HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15, 63 }; 64 65 enum hdmi_audio_coding_type { 66 HDMI_AUDIO_CODING_TYPE_STREAM = 0, 67 HDMI_AUDIO_CODING_TYPE_PCM = 1, 68 HDMI_AUDIO_CODING_TYPE_AC3 = 2, 69 HDMI_AUDIO_CODING_TYPE_MPEG1 = 3, 70 HDMI_AUDIO_CODING_TYPE_MP3 = 4, 71 HDMI_AUDIO_CODING_TYPE_MPEG2 = 5, 72 HDMI_AUDIO_CODING_TYPE_AAC_LC = 6, 73 HDMI_AUDIO_CODING_TYPE_DTS = 7, 74 HDMI_AUDIO_CODING_TYPE_ATRAC = 8, 75 HDMI_AUDIO_CODING_TYPE_DSD = 9, 76 HDMI_AUDIO_CODING_TYPE_EAC3 = 10, 77 HDMI_AUDIO_CODING_TYPE_DTS_HD = 11, 78 HDMI_AUDIO_CODING_TYPE_MLP = 12, 79 HDMI_AUDIO_CODING_TYPE_DST = 13, 80 HDMI_AUDIO_CODING_TYPE_WMA_PRO = 14, 81 }; 82 83 enum hdmi_audio_coding_type_ext { 84 HDMI_AUDIO_CODING_TYPE_EXT_STREAM = 0, 85 HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC = 1, 86 HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2 = 2, 87 HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND = 3, 88 }; 89 90 enum hdmi_audio_sample_frequency { 91 HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM = 0, 92 HDMI_AUDIO_SAMPLE_FREQUENCY_32000 = 1, 93 HDMI_AUDIO_SAMPLE_FREQUENCY_44100 = 2, 94 HDMI_AUDIO_SAMPLE_FREQUENCY_48000 = 3, 95 HDMI_AUDIO_SAMPLE_FREQUENCY_88200 = 4, 96 HDMI_AUDIO_SAMPLE_FREQUENCY_96000 = 5, 97 HDMI_AUDIO_SAMPLE_FREQUENCY_176400 = 6, 98 HDMI_AUDIO_SAMPLE_FREQUENCY_192000 = 7, 99 }; 100 101 enum hdmi_audio_sample_size { 102 HDMI_AUDIO_SAMPLE_SIZE_STREAM = 0, 103 HDMI_AUDIO_SAMPLE_SIZE_16 = 1, 104 HDMI_AUDIO_SAMPLE_SIZE_20 = 2, 105 HDMI_AUDIO_SAMPLE_SIZE_24 = 3, 106 }; 107 108 enum hdmi_colorimetry { 109 HDMI_COLORIMETRY_NONE = 0, 110 HDMI_COLORIMETRY_ITU_601 = 1, 111 HDMI_COLORIMETRY_ITU_709 = 2, 112 HDMI_COLORIMETRY_EXTENDED = 3, 113 }; 114 115 enum hdmi_colorspace { 116 HDMI_COLORSPACE_RGB = 0, 117 HDMI_COLORSPACE_YUV422 = 1, 118 HDMI_COLORSPACE_YUV444 = 2, 119 }; 120 121 enum hdmi_content_type { 122 HDMI_CONTENT_TYPE_GRAPHICS = 0, 123 HDMI_CONTENT_TYPE_PHOTO = 1, 124 HDMI_CONTENT_TYPE_CINEMA = 2, 125 HDMI_CONTENT_TYPE_GAME = 3, 126 }; 127 128 enum hdmi_extended_colorimetry { 129 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601 = 0, 130 HDMI_EXTENDED_COLORIMETRY_XV_YCC_709 = 1, 131 HDMI_EXTENDED_COLORIMETRY_S_YCC_601 = 2, 132 HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601 = 3, 133 HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB = 4, 134 }; 135 136 enum hdmi_nups { 137 HDMI_NUPS_UNKNOWN = 0, 138 HDMI_NUPS_HORIZONTAL = 1, 139 HDMI_NUPS_VERTICAL = 2, 140 HDMI_NUPS_BOTH = 3, 141 }; 142 143 enum hdmi_picture_aspect { 144 HDMI_PICTURE_ASPECT_NONE = 0, 145 HDMI_PICTURE_ASPECT_4_3 = 1, 146 HDMI_PICTURE_ASPECT_16_9 = 2, 147 HDMI_PICTURE_ASPECT_64_27 = 3, 148 HDMI_PICTURE_ASPECT_256_135 = 4, 149 HDMI_PICTURE_ASPECT_RESERVED = 5, 150 }; 151 152 enum hdmi_quantization_range { 153 HDMI_QUANTIZATION_RANGE_DEFAULT = 0, 154 HDMI_QUANTIZATION_RANGE_LIMITED = 1, 155 HDMI_QUANTIZATION_RANGE_FULL = 2, 156 }; 157 158 enum hdmi_scan_mode { 159 HDMI_SCAN_MODE_NONE = 0, 160 HDMI_SCAN_MODE_OVERSCAN = 1, 161 HDMI_SCAN_MODE_UNDERSCAN = 2, 162 }; 163 164 enum hdmi_ycc_quantization_range { 165 HDMI_YCC_QUANTIZATION_RANGE_LIMITED = 0, 166 HDMI_YCC_QUANTIZATION_RANGE_FULL = 1, 167 }; 168 169 enum hdmi_infoframe_type { 170 HDMI_INFOFRAME_TYPE_VENDOR = 0x81, 171 HDMI_INFOFRAME_TYPE_AVI = 0x82, 172 HDMI_INFOFRAME_TYPE_SPD = 0x83, 173 HDMI_INFOFRAME_TYPE_AUDIO = 0x84, 174 }; 175 176 #define HDMI_INFOFRAME_SIZE(TYPE) \ 177 (HDMI_INFOFRAME_HEADER_SIZE + HDMI_##TYPE##_INFOFRAME_SIZE) 178 179 #define HDMI_INFOFRAME_HEADER_SIZE 4 180 struct hdmi_infoframe_header { 181 enum hdmi_infoframe_type type; 182 uint8_t version; 183 uint8_t length; 184 /* checksum */ 185 }; 186 187 static inline void 188 hdmi_infoframe_header_init(struct hdmi_infoframe_header *header, 189 enum hdmi_infoframe_type type, uint8_t vers, uint8_t length) 190 { 191 192 header->type = type; 193 header->version = vers; 194 header->length = length; 195 } 196 197 static inline int 198 hdmi_infoframe_header_pack(const struct hdmi_infoframe_header *header, 199 uint8_t length, void *buf, size_t size) 200 { 201 uint8_t *const p = buf; 202 203 if (length < HDMI_INFOFRAME_HEADER_SIZE) 204 return -ENOSPC; 205 if (size < length) 206 return -ENOSPC; 207 208 p[0] = header->type; 209 p[1] = header->version; 210 p[2] = (length - HDMI_INFOFRAME_HEADER_SIZE); 211 p[3] = 0; /* checksum */ 212 213 return HDMI_INFOFRAME_HEADER_SIZE; 214 } 215 216 static inline void 217 hdmi_infoframe_checksum(void *buf, size_t length) 218 { 219 uint8_t *p = buf; 220 uint8_t checksum = 0; 221 222 while (length--) 223 checksum += *p++; 224 225 p = buf; 226 p[3] = (256 - checksum); 227 } 228 229 #define HDMI_AUDIO_INFOFRAME_SIZE 10 230 struct hdmi_audio_infoframe { 231 struct hdmi_infoframe_header header; 232 uint8_t channels; 233 enum hdmi_audio_coding_type coding_type; 234 enum hdmi_audio_sample_size sample_size; 235 enum hdmi_audio_sample_frequency sample_frequency; 236 enum hdmi_audio_coding_type_ext coding_type_ext; 237 uint8_t channel_allocation; 238 uint8_t level_shift_value; 239 bool downmix_inhibit; 240 }; 241 242 static inline int 243 hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame) 244 { 245 static const struct hdmi_audio_infoframe zero_frame; 246 247 *frame = zero_frame; 248 249 hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_AUDIO, 250 1, HDMI_AUDIO_INFOFRAME_SIZE); 251 252 return 0; 253 } 254 255 static inline ssize_t 256 hdmi_audio_infoframe_pack(const struct hdmi_audio_infoframe *frame, void *buf, 257 size_t size) 258 { 259 const size_t length = HDMI_INFOFRAME_HEADER_SIZE + 260 HDMI_AUDIO_INFOFRAME_SIZE; 261 uint8_t channels = 0; 262 uint8_t *p = buf; 263 int ret; 264 265 KASSERT(frame->header.length == HDMI_AUDIO_INFOFRAME_SIZE); 266 267 ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 268 if (ret < 0) 269 return ret; 270 KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 271 p += HDMI_INFOFRAME_HEADER_SIZE; 272 size -= HDMI_INFOFRAME_HEADER_SIZE; 273 274 if (frame->channels >= 2) 275 channels = frame->channels - 1; 276 277 p[0] = __SHIFTIN(frame->coding_type, __BITS(7,4)); 278 p[0] |= __SHIFTIN(channels, __BITS(2,0)); 279 280 p[1] = __SHIFTIN(frame->sample_frequency, __BITS(4,2)); 281 p[1] |= __SHIFTIN(frame->sample_size, __BITS(1,0)); 282 283 p[2] = __SHIFTIN(frame->coding_type_ext, __BITS(5,0)); 284 285 p[3] = __SHIFTIN(frame->level_shift_value, __BITS(6, 3)); 286 287 p[4] = __SHIFTIN(frame->downmix_inhibit? 1 : 0, __BIT(7)); 288 289 /* PB6 to PB10 are reserved */ 290 p[5] = 0; 291 p[6] = 0; 292 p[7] = 0; 293 p[8] = 0; 294 p[9] = 0; 295 296 CTASSERT(HDMI_AUDIO_INFOFRAME_SIZE == 10); 297 298 hdmi_infoframe_checksum(buf, length); 299 300 return length; 301 } 302 303 #define HDMI_AVI_INFOFRAME_SIZE 13 304 struct hdmi_avi_infoframe { 305 struct hdmi_infoframe_header header; 306 enum hdmi_colorspace colorspace; 307 enum hdmi_scan_mode scan_mode; 308 enum hdmi_colorimetry colorimetry; 309 enum hdmi_picture_aspect picture_aspect; 310 enum hdmi_active_aspect active_aspect; 311 bool itc; 312 enum hdmi_extended_colorimetry extended_colorimetry; 313 enum hdmi_quantization_range quantization_range; 314 enum hdmi_nups nups; 315 uint8_t video_code; 316 enum hdmi_ycc_quantization_range ycc_quantization_range; 317 enum hdmi_content_type content_type; 318 uint8_t pixel_repeat; 319 uint16_t top_bar; 320 uint16_t bottom_bar; 321 uint16_t left_bar; 322 uint16_t right_bar; 323 }; 324 325 static inline int 326 hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame) 327 { 328 static const struct hdmi_avi_infoframe zero_frame; 329 330 *frame = zero_frame; 331 332 hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_AVI, 2, 333 HDMI_AVI_INFOFRAME_SIZE); 334 335 return 0; 336 } 337 338 static inline ssize_t 339 hdmi_avi_infoframe_pack(const struct hdmi_avi_infoframe *frame, void *buf, 340 size_t size) 341 { 342 const size_t length = HDMI_INFOFRAME_HEADER_SIZE + 343 HDMI_AVI_INFOFRAME_SIZE; 344 uint8_t *p = buf; 345 int ret; 346 347 KASSERT(frame->header.length == HDMI_AVI_INFOFRAME_SIZE); 348 349 ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 350 if (ret < 0) 351 return ret; 352 KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 353 p += HDMI_INFOFRAME_HEADER_SIZE; 354 size -= HDMI_INFOFRAME_HEADER_SIZE; 355 356 p[0] = __SHIFTIN(frame->colorspace, __BITS(6,5)); 357 p[0] |= __SHIFTIN(frame->active_aspect & 0xf? 1 : 0, __BIT(4)); 358 p[0] |= __SHIFTIN(frame->top_bar || frame->bottom_bar, __BIT(3)); 359 p[0] |= __SHIFTIN(frame->left_bar || frame->right_bar, __BIT(2)); 360 p[0] |= __SHIFTIN(frame->scan_mode, __BITS(1,0)); 361 362 p[1] = __SHIFTIN(frame->colorimetry, __BITS(7,6)); 363 p[1] |= __SHIFTIN(frame->picture_aspect, __BITS(5,4)); 364 p[1] |= __SHIFTIN(frame->active_aspect, __BITS(3,0)); 365 366 p[2] = __SHIFTIN(frame->itc? 1 : 0, __BIT(7)); 367 p[2] |= __SHIFTIN(frame->extended_colorimetry, __BITS(6,4)); 368 p[2] |= __SHIFTIN(frame->quantization_range, __BITS(3,2)); 369 p[2] |= __SHIFTIN(frame->nups, __BITS(1,0)); 370 371 p[3] = frame->video_code; 372 373 p[4] = __SHIFTIN(frame->ycc_quantization_range, __BITS(7,6)); 374 p[4] |= __SHIFTIN(frame->content_type, __BITS(5,4)); 375 p[4] |= __SHIFTIN(frame->pixel_repeat, __BITS(3,0)); 376 377 le16enc(&p[5], frame->top_bar); 378 le16enc(&p[7], frame->bottom_bar); 379 le16enc(&p[9], frame->left_bar); 380 le16enc(&p[11], frame->right_bar); 381 CTASSERT(HDMI_AVI_INFOFRAME_SIZE == 13); 382 383 hdmi_infoframe_checksum(buf, length); 384 385 return length; 386 } 387 388 #define HDMI_SPD_INFOFRAME_SIZE 25 389 struct hdmi_spd_infoframe { 390 struct hdmi_infoframe_header header; 391 char vendor[8]; 392 char product[16]; 393 enum hdmi_spd_sdi { 394 HDMI_SPD_SDI_UNKNOWN = 0, 395 HDMI_SPD_SDI_DSTB = 1, 396 HDMI_SPD_SDI_DVDP = 2, 397 HDMI_SPD_SDI_DVHS = 3, 398 HDMI_SPD_SDI_HDDVR = 4, 399 HDMI_SPD_SDI_DVC = 5, 400 HDMI_SPD_SDI_DSC = 6, 401 HDMI_SPD_SDI_VCD = 7, 402 HDMI_SPD_SDI_GAME = 8, 403 HDMI_SPD_SDI_PC = 9, 404 HDMI_SPD_SDI_BD = 10, 405 HDMI_SPD_SDI_SACD = 11, 406 HDMI_SPD_SDI_HDDVD = 12, 407 HDMI_SPD_SDI_PMP = 13, 408 } sdi; 409 }; 410 411 static inline int 412 hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame, const char *vendor, 413 const char *product) 414 { 415 static const struct hdmi_spd_infoframe zero_frame; 416 417 *frame = zero_frame; 418 419 hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_SPD, 420 1, HDMI_SPD_INFOFRAME_SIZE); 421 422 (void)strlcpy(frame->vendor, vendor, sizeof(frame->vendor)); 423 (void)strlcpy(frame->product, product, sizeof(frame->product)); 424 425 return 0; 426 } 427 428 static inline ssize_t 429 hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buf, 430 size_t size) 431 { 432 const size_t length = HDMI_INFOFRAME_HEADER_SIZE + 433 HDMI_SPD_INFOFRAME_SIZE; 434 uint8_t *p = buf; 435 int ret; 436 437 KASSERT(frame->header.length == HDMI_SPD_INFOFRAME_SIZE); 438 439 ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 440 if (ret < 0) 441 return ret; 442 KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 443 p += HDMI_INFOFRAME_HEADER_SIZE; 444 size -= HDMI_INFOFRAME_HEADER_SIZE; 445 446 (void)memcpy(&p[0], frame->vendor, 8); 447 (void)memcpy(&p[8], frame->product, 16); 448 p[24] = frame->sdi; 449 450 hdmi_infoframe_checksum(buf, length); 451 452 return length; 453 } 454 455 #define HDMI_IEEE_OUI 0x000c03 456 #define HDMI_FORUM_IEEE_OUI 0xc45dd8 457 458 struct hdmi_vendor_infoframe { 459 struct hdmi_infoframe_header header; 460 uint32_t oui; 461 uint8_t vic; 462 enum hdmi_3d_structure s3d_struct; 463 unsigned s3d_ext_data; 464 }; 465 466 union hdmi_vendor_any_infoframe { 467 struct { 468 struct hdmi_infoframe_header header; 469 uint32_t oui; 470 } any; 471 struct hdmi_vendor_infoframe hdmi; 472 }; 473 474 static inline int 475 hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame) 476 { 477 static const struct hdmi_vendor_infoframe zero_frame; 478 479 *frame = zero_frame; 480 481 hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_VENDOR, 482 1, 0 /* depends on s3d_struct */); 483 484 frame->oui = HDMI_IEEE_OUI; 485 frame->s3d_struct = HDMI_3D_STRUCTURE_INVALID; 486 487 return 0; 488 } 489 490 static inline int 491 hdmi_vendor_infoframe_pack(const struct hdmi_vendor_infoframe *frame, 492 void *buf, size_t size) 493 { 494 uint8_t *p = buf; 495 size_t length; 496 int ret; 497 498 /* Exactly one must be supplied. */ 499 if ((frame->vic == 0) == 500 (frame->s3d_struct == HDMI_3D_STRUCTURE_INVALID)) 501 return -EINVAL; 502 503 length = HDMI_INFOFRAME_HEADER_SIZE + 6; 504 if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) 505 length += 1; 506 507 ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 508 if (ret < 0) 509 return ret; 510 KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 511 p += HDMI_INFOFRAME_HEADER_SIZE; 512 size -= HDMI_INFOFRAME_HEADER_SIZE; 513 514 p[0] = 0x03; 515 p[1] = 0x0c; 516 p[2] = 0x00; 517 518 if (frame->vic == 0) { 519 p[3] = __SHIFTIN(0x2, __BITS(6,5)); 520 p[4] = __SHIFTIN(frame->s3d_struct, __BITS(7,4)); 521 if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) 522 p[9] = __SHIFTIN(frame->s3d_ext_data, __BITS(7,4)); 523 } else { 524 p[3] = __SHIFTIN(0x1, __BITS(6,5)); 525 p[4] = frame->vic; 526 } 527 528 hdmi_infoframe_checksum(buf, length); 529 530 return length; 531 } 532 533 union hdmi_infoframe { 534 struct hdmi_infoframe_header any; 535 struct hdmi_avi_infoframe avi; 536 struct hdmi_spd_infoframe spd; 537 union hdmi_vendor_any_infoframe vendor; 538 }; 539 540 static inline ssize_t 541 hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buf, size_t size) 542 { 543 544 switch (frame->any.type) { 545 case HDMI_INFOFRAME_TYPE_AVI: 546 return hdmi_avi_infoframe_pack(&frame->avi, buf, size); 547 case HDMI_INFOFRAME_TYPE_SPD: 548 return hdmi_spd_infoframe_pack(&frame->spd, buf, size); 549 case HDMI_INFOFRAME_TYPE_VENDOR: 550 return hdmi_vendor_infoframe_pack(&frame->vendor.hdmi, buf, 551 size); 552 default: 553 return -EINVAL; 554 } 555 } 556 557 struct hdr_sink_metadata {}; 558 struct hdmi_drm_infoframe {}; 559 560 #endif /* _LINUX_HDMI_H_ */ 561
Indexes created Tue Sep 23 22:09:46 GMT 2025