hdmi.h revision 1.2.6.3
1 1.2.6.2 tls /* $NetBSD: hdmi.h,v 1.2.6.3 2017/12/03 11:37:59 jdolecek Exp $ */ 2 1.2.6.2 tls 3 1.2.6.2 tls /*- 4 1.2.6.2 tls * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 1.2.6.2 tls * All rights reserved. 6 1.2.6.2 tls * 7 1.2.6.2 tls * This code is derived from software contributed to The NetBSD Foundation 8 1.2.6.2 tls * by Taylor R. Campbell. 9 1.2.6.2 tls * 10 1.2.6.2 tls * Redistribution and use in source and binary forms, with or without 11 1.2.6.2 tls * modification, are permitted provided that the following conditions 12 1.2.6.2 tls * are met: 13 1.2.6.2 tls * 1. Redistributions of source code must retain the above copyright 14 1.2.6.2 tls * notice, this list of conditions and the following disclaimer. 15 1.2.6.2 tls * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.6.2 tls * notice, this list of conditions and the following disclaimer in the 17 1.2.6.2 tls * documentation and/or other materials provided with the distribution. 18 1.2.6.2 tls * 19 1.2.6.2 tls * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.6.2 tls * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.6.2 tls * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.6.2 tls * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.6.2 tls * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.6.2 tls * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.6.2 tls * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.6.2 tls * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.6.2 tls * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.6.2 tls * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.6.2 tls * POSSIBILITY OF SUCH DAMAGE. 30 1.2.6.2 tls */ 31 1.2.6.2 tls 32 1.2.6.2 tls #ifndef _LINUX_HDMI_H_ 33 1.2.6.2 tls #define _LINUX_HDMI_H_ 34 1.2.6.2 tls 35 1.2.6.2 tls #include <sys/types.h> 36 1.2.6.2 tls #include <sys/param.h> 37 1.2.6.2 tls #include <sys/errno.h> 38 1.2.6.2 tls #include <sys/systm.h> 39 1.2.6.2 tls 40 1.2.6.2 tls enum hdmi_3d_structure { 41 1.2.6.2 tls HDMI_3D_STRUCTURE_INVALID = -1, 42 1.2.6.2 tls HDMI_3D_STRUCTURE_FRAME_PACKING = 0, 43 1.2.6.2 tls HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE = 1, 44 1.2.6.2 tls HDMI_3D_STRUCTURE_LINE_ALTERNATIVE = 2, 45 1.2.6.2 tls HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL = 3, 46 1.2.6.2 tls HDMI_3D_STRUCTURE_L_DEPTH = 4, 47 1.2.6.2 tls HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH = 5, 48 1.2.6.2 tls HDMI_3D_STRUCTURE_TOP_AND_BOTTOM = 6, 49 1.2.6.2 tls HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8, 50 1.2.6.2 tls }; 51 1.2.6.2 tls 52 1.2.6.2 tls enum hdmi_active_aspect { 53 1.2.6.2 tls HDMI_ACTIVE_ASPECT_16_9_TOP = 2, 54 1.2.6.2 tls HDMI_ACTIVE_ASPECT_14_9_TOP = 3, 55 1.2.6.2 tls HDMI_ACTIVE_ASPECT_16_9_CENTER = 4, 56 1.2.6.2 tls HDMI_ACTIVE_ASPECT_PICTURE = 8, 57 1.2.6.2 tls HDMI_ACTIVE_ASPECT_4_3 = 9, 58 1.2.6.2 tls HDMI_ACTIVE_ASPECT_16_9 = 10, 59 1.2.6.2 tls HDMI_ACTIVE_ASPECT_14_9 = 11, 60 1.2.6.2 tls HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13, 61 1.2.6.2 tls HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14, 62 1.2.6.2 tls HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15, 63 1.2.6.2 tls }; 64 1.2.6.2 tls 65 1.2.6.2 tls enum hdmi_audio_coding_type { 66 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_STREAM = 0, 67 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_PCM = 1, 68 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_AC3 = 2, 69 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_MPEG1 = 3, 70 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_MP3 = 4, 71 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_MPEG2 = 5, 72 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_AAC_LC = 6, 73 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_DTS = 7, 74 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_ATRAC = 8, 75 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_DSD = 9, 76 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_EAC3 = 10, 77 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_DTS_HD = 11, 78 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_MLP = 12, 79 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_DST = 13, 80 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_WMA_PRO = 14, 81 1.2.6.2 tls }; 82 1.2.6.2 tls 83 1.2.6.2 tls enum hdmi_audio_coding_type_ext { 84 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_EXT_STREAM = 0, 85 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC = 1, 86 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2 = 2, 87 1.2.6.2 tls HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND = 3, 88 1.2.6.2 tls }; 89 1.2.6.2 tls 90 1.2.6.2 tls enum hdmi_audio_sample_frequency { 91 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM = 0, 92 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_32000 = 1, 93 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_44100 = 2, 94 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_48000 = 3, 95 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_88200 = 4, 96 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_96000 = 5, 97 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_176400 = 6, 98 1.2.6.2 tls HDMI_AUDIO_SAMPLE_FREQUENCY_192000 = 7, 99 1.2.6.2 tls }; 100 1.2.6.2 tls 101 1.2.6.2 tls enum hdmi_audio_sample_size { 102 1.2.6.2 tls HDMI_AUDIO_SAMPLE_SIZE_STREAM = 0, 103 1.2.6.2 tls HDMI_AUDIO_SAMPLE_SIZE_16 = 1, 104 1.2.6.2 tls HDMI_AUDIO_SAMPLE_SIZE_20 = 2, 105 1.2.6.2 tls HDMI_AUDIO_SAMPLE_SIZE_24 = 3, 106 1.2.6.2 tls }; 107 1.2.6.2 tls 108 1.2.6.2 tls enum hdmi_colorimetry { 109 1.2.6.2 tls HDMI_COLORIMETRY_NONE = 0, 110 1.2.6.2 tls HDMI_COLORIMETRY_ITU_601 = 1, 111 1.2.6.2 tls HDMI_COLORIMETRY_ITU_709 = 2, 112 1.2.6.2 tls HDMI_COLORIMETRY_EXTENDED = 3, 113 1.2.6.2 tls }; 114 1.2.6.2 tls 115 1.2.6.2 tls enum hdmi_colorspace { 116 1.2.6.2 tls HDMI_COLORSPACE_RGB = 0, 117 1.2.6.2 tls HDMI_COLORSPACE_YUV422 = 1, 118 1.2.6.2 tls HDMI_COLORSPACE_YUV444 = 2, 119 1.2.6.2 tls }; 120 1.2.6.2 tls 121 1.2.6.2 tls enum hdmi_content_type { 122 1.2.6.2 tls HDMI_CONTENT_TYPE_NONE = 0, 123 1.2.6.2 tls HDMI_CONTENT_TYPE_PHOTO = 1, 124 1.2.6.2 tls HDMI_CONTENT_TYPE_CINEMA = 2, 125 1.2.6.2 tls HDMI_CONTENT_TYPE_GAME = 3, 126 1.2.6.2 tls }; 127 1.2.6.2 tls 128 1.2.6.2 tls enum hdmi_extended_colorimetry { 129 1.2.6.2 tls HDMI_EXTENDED_COLORIMETRY_XV_YCC_601 = 0, 130 1.2.6.2 tls HDMI_EXTENDED_COLORIMETRY_XV_YCC_709 = 1, 131 1.2.6.2 tls HDMI_EXTENDED_COLORIMETRY_S_YCC_601 = 2, 132 1.2.6.2 tls HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601 = 3, 133 1.2.6.2 tls HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB = 4, 134 1.2.6.2 tls }; 135 1.2.6.2 tls 136 1.2.6.2 tls enum hdmi_nups { 137 1.2.6.2 tls HDMI_NUPS_UNKNOWN = 0, 138 1.2.6.2 tls HDMI_NUPS_HORIZONTAL = 1, 139 1.2.6.2 tls HDMI_NUPS_VERTICAL = 2, 140 1.2.6.2 tls HDMI_NUPS_BOTH = 3, 141 1.2.6.2 tls }; 142 1.2.6.2 tls 143 1.2.6.2 tls enum hdmi_picture_aspect { 144 1.2.6.2 tls HDMI_PICTURE_ASPECT_NONE = 0, 145 1.2.6.2 tls HDMI_PICTURE_ASPECT_4_3 = 1, 146 1.2.6.2 tls HDMI_PICTURE_ASPECT_16_9 = 2, 147 1.2.6.2 tls }; 148 1.2.6.2 tls 149 1.2.6.2 tls enum hdmi_quantization_range { 150 1.2.6.2 tls HDMI_QUANTIZATION_RANGE_DEFAULT = 0, 151 1.2.6.2 tls HDMI_QUANTIZATION_RANGE_LIMITED = 1, 152 1.2.6.2 tls HDMI_QUANTIZATION_RANGE_FULL = 2, 153 1.2.6.2 tls }; 154 1.2.6.2 tls 155 1.2.6.2 tls enum hdmi_scan_mode { 156 1.2.6.2 tls HDMI_SCAN_MODE_NONE = 0, 157 1.2.6.2 tls HDMI_SCAN_MODE_OVERSCAN = 1, 158 1.2.6.2 tls HDMI_SCAN_MODE_UNDERSCAN = 2, 159 1.2.6.2 tls }; 160 1.2.6.2 tls 161 1.2.6.2 tls enum hdmi_ycc_quantization_range { 162 1.2.6.2 tls HDMI_YCC_QUANTIZATION_RANGE_LIMITED = 0, 163 1.2.6.2 tls HDMI_YCC_QUANTIZATION_RANGE_FULL = 1, 164 1.2.6.2 tls }; 165 1.2.6.2 tls 166 1.2.6.2 tls enum hdmi_infoframe_type { 167 1.2.6.2 tls HDMI_INFOFRAME_TYPE_VENDOR = 0x81, 168 1.2.6.2 tls HDMI_INFOFRAME_TYPE_AVI = 0x82, 169 1.2.6.2 tls HDMI_INFOFRAME_TYPE_SPD = 0x83, 170 1.2.6.2 tls HDMI_INFOFRAME_TYPE_AUDIO = 0x84, 171 1.2.6.2 tls }; 172 1.2.6.2 tls 173 1.2.6.2 tls #define HDMI_INFOFRAME_SIZE(TYPE) \ 174 1.2.6.2 tls (HDMI_INFOFRAME_HEADER_SIZE + HDMI_##TYPE##_INFOFRAME_SIZE) 175 1.2.6.2 tls 176 1.2.6.2 tls #define HDMI_INFOFRAME_HEADER_SIZE 4 177 1.2.6.2 tls struct hdmi_infoframe_header { 178 1.2.6.2 tls enum hdmi_infoframe_type type; 179 1.2.6.2 tls uint8_t version; 180 1.2.6.2 tls uint8_t length; 181 1.2.6.2 tls /* checksum */ 182 1.2.6.2 tls }; 183 1.2.6.2 tls 184 1.2.6.2 tls static inline void 185 1.2.6.2 tls hdmi_infoframe_header_init(struct hdmi_infoframe_header *header, 186 1.2.6.2 tls enum hdmi_infoframe_type type, uint8_t vers, uint8_t length) 187 1.2.6.2 tls { 188 1.2.6.2 tls 189 1.2.6.2 tls header->type = type; 190 1.2.6.2 tls header->version = vers; 191 1.2.6.2 tls header->length = length; 192 1.2.6.2 tls } 193 1.2.6.2 tls 194 1.2.6.2 tls static inline int 195 1.2.6.2 tls hdmi_infoframe_header_pack(const struct hdmi_infoframe_header *header, 196 1.2.6.2 tls uint8_t length, void *buf, size_t size) 197 1.2.6.2 tls { 198 1.2.6.2 tls uint8_t *const p = buf; 199 1.2.6.2 tls 200 1.2.6.3 jdolecek if (length < HDMI_INFOFRAME_HEADER_SIZE) 201 1.2.6.3 jdolecek return -ENOSPC; 202 1.2.6.3 jdolecek if (size < length) 203 1.2.6.2 tls return -ENOSPC; 204 1.2.6.2 tls 205 1.2.6.2 tls p[0] = header->type; 206 1.2.6.2 tls p[1] = header->version; 207 1.2.6.3 jdolecek p[2] = (length - HDMI_INFOFRAME_HEADER_SIZE); 208 1.2.6.2 tls p[3] = 0; /* checksum */ 209 1.2.6.2 tls 210 1.2.6.2 tls return HDMI_INFOFRAME_HEADER_SIZE; 211 1.2.6.2 tls } 212 1.2.6.2 tls 213 1.2.6.2 tls static inline void 214 1.2.6.2 tls hdmi_infoframe_checksum(void *buf, size_t length) 215 1.2.6.2 tls { 216 1.2.6.2 tls uint8_t *p = buf; 217 1.2.6.2 tls uint8_t checksum = 0; 218 1.2.6.2 tls 219 1.2.6.2 tls while (length--) 220 1.2.6.3 jdolecek checksum += *p++; 221 1.2.6.2 tls 222 1.2.6.2 tls p = buf; 223 1.2.6.2 tls p[3] = (256 - checksum); 224 1.2.6.2 tls } 225 1.2.6.2 tls 226 1.2.6.2 tls #define HDMI_AUDIO_INFOFRAME_SIZE 10 227 1.2.6.2 tls struct hdmi_audio_infoframe { 228 1.2.6.2 tls struct hdmi_infoframe_header header; 229 1.2.6.2 tls uint8_t channels; 230 1.2.6.2 tls enum hdmi_audio_coding_type coding_type; 231 1.2.6.2 tls enum hdmi_audio_sample_size sample_size; 232 1.2.6.2 tls enum hdmi_audio_sample_frequency sample_frequency; 233 1.2.6.2 tls enum hdmi_audio_coding_type_ext coding_type_ext; 234 1.2.6.2 tls uint8_t channel_allocation; 235 1.2.6.2 tls uint8_t level_shift_value; 236 1.2.6.2 tls bool downmix_inhibit; 237 1.2.6.2 tls }; 238 1.2.6.2 tls 239 1.2.6.2 tls static inline int 240 1.2.6.2 tls hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame) 241 1.2.6.2 tls { 242 1.2.6.2 tls static const struct hdmi_audio_infoframe zero_frame; 243 1.2.6.2 tls 244 1.2.6.2 tls *frame = zero_frame; 245 1.2.6.2 tls 246 1.2.6.2 tls hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_AUDIO, 247 1.2.6.2 tls 1, HDMI_AUDIO_INFOFRAME_SIZE); 248 1.2.6.2 tls 249 1.2.6.2 tls return 0; 250 1.2.6.2 tls } 251 1.2.6.2 tls 252 1.2.6.2 tls static inline ssize_t 253 1.2.6.2 tls hdmi_audio_infoframe_pack(const struct hdmi_audio_infoframe *frame, void *buf, 254 1.2.6.2 tls size_t size) 255 1.2.6.2 tls { 256 1.2.6.2 tls const size_t length = HDMI_INFOFRAME_HEADER_SIZE + 257 1.2.6.2 tls HDMI_AUDIO_INFOFRAME_SIZE; 258 1.2.6.2 tls uint8_t channels = 0; 259 1.2.6.2 tls uint8_t *p = buf; 260 1.2.6.2 tls int ret; 261 1.2.6.2 tls 262 1.2.6.2 tls KASSERT(frame->header.length == HDMI_AUDIO_INFOFRAME_SIZE); 263 1.2.6.2 tls 264 1.2.6.2 tls ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 265 1.2.6.2 tls if (ret < 0) 266 1.2.6.2 tls return ret; 267 1.2.6.3 jdolecek KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 268 1.2.6.2 tls p += HDMI_INFOFRAME_HEADER_SIZE; 269 1.2.6.2 tls size -= HDMI_INFOFRAME_HEADER_SIZE; 270 1.2.6.2 tls 271 1.2.6.2 tls if (frame->channels >= 2) 272 1.2.6.2 tls channels = frame->channels - 1; 273 1.2.6.2 tls 274 1.2.6.2 tls p[0] = __SHIFTIN(frame->coding_type, __BITS(7,4)); 275 1.2.6.2 tls p[0] |= __SHIFTIN(channels, __BITS(2,0)); 276 1.2.6.2 tls 277 1.2.6.2 tls p[1] = __SHIFTIN(frame->sample_frequency, __BITS(4,2)); 278 1.2.6.2 tls p[1] |= __SHIFTIN(frame->sample_size, __BITS(1,0)); 279 1.2.6.2 tls 280 1.2.6.2 tls p[2] = __SHIFTIN(frame->coding_type_ext, __BITS(5,0)); 281 1.2.6.2 tls 282 1.2.6.2 tls p[3] = __SHIFTIN(frame->level_shift_value, __BITS(6, 3)); 283 1.2.6.2 tls 284 1.2.6.2 tls p[4] = __SHIFTIN(frame->downmix_inhibit? 1 : 0, __BIT(7)); 285 1.2.6.2 tls 286 1.2.6.3 jdolecek /* PB6 to PB10 are reserved */ 287 1.2.6.3 jdolecek p[5] = 0; 288 1.2.6.3 jdolecek p[6] = 0; 289 1.2.6.3 jdolecek p[7] = 0; 290 1.2.6.3 jdolecek p[8] = 0; 291 1.2.6.3 jdolecek p[9] = 0; 292 1.2.6.3 jdolecek 293 1.2.6.2 tls CTASSERT(HDMI_AUDIO_INFOFRAME_SIZE == 10); 294 1.2.6.2 tls 295 1.2.6.2 tls hdmi_infoframe_checksum(buf, length); 296 1.2.6.2 tls 297 1.2.6.2 tls return length; 298 1.2.6.2 tls } 299 1.2.6.2 tls 300 1.2.6.2 tls #define HDMI_AVI_INFOFRAME_SIZE 13 301 1.2.6.2 tls struct hdmi_avi_infoframe { 302 1.2.6.2 tls struct hdmi_infoframe_header header; 303 1.2.6.2 tls enum hdmi_colorspace colorspace; 304 1.2.6.2 tls enum hdmi_scan_mode scan_mode; 305 1.2.6.2 tls enum hdmi_colorimetry colorimetry; 306 1.2.6.2 tls enum hdmi_picture_aspect picture_aspect; 307 1.2.6.2 tls enum hdmi_active_aspect active_aspect; 308 1.2.6.2 tls bool itc; 309 1.2.6.2 tls enum hdmi_extended_colorimetry extended_colorimetry; 310 1.2.6.2 tls enum hdmi_quantization_range quantization_range; 311 1.2.6.2 tls enum hdmi_nups nups; 312 1.2.6.2 tls uint8_t video_code; 313 1.2.6.2 tls enum hdmi_ycc_quantization_range ycc_quantization_range; 314 1.2.6.2 tls enum hdmi_content_type content_type; 315 1.2.6.2 tls uint8_t pixel_repeat; 316 1.2.6.2 tls uint16_t top_bar; 317 1.2.6.2 tls uint16_t bottom_bar; 318 1.2.6.2 tls uint16_t left_bar; 319 1.2.6.2 tls uint16_t right_bar; 320 1.2.6.2 tls }; 321 1.2.6.2 tls 322 1.2.6.2 tls static inline int 323 1.2.6.2 tls hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame) 324 1.2.6.2 tls { 325 1.2.6.2 tls static const struct hdmi_avi_infoframe zero_frame; 326 1.2.6.2 tls 327 1.2.6.2 tls *frame = zero_frame; 328 1.2.6.2 tls 329 1.2.6.2 tls hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_AVI, 2, 330 1.2.6.2 tls HDMI_AVI_INFOFRAME_SIZE); 331 1.2.6.2 tls 332 1.2.6.2 tls return 0; 333 1.2.6.2 tls } 334 1.2.6.2 tls 335 1.2.6.2 tls static inline ssize_t 336 1.2.6.2 tls hdmi_avi_infoframe_pack(const struct hdmi_avi_infoframe *frame, void *buf, 337 1.2.6.2 tls size_t size) 338 1.2.6.2 tls { 339 1.2.6.2 tls const size_t length = HDMI_INFOFRAME_HEADER_SIZE + 340 1.2.6.2 tls HDMI_AVI_INFOFRAME_SIZE; 341 1.2.6.2 tls uint8_t *p = buf; 342 1.2.6.2 tls int ret; 343 1.2.6.2 tls 344 1.2.6.2 tls KASSERT(frame->header.length == HDMI_AVI_INFOFRAME_SIZE); 345 1.2.6.2 tls 346 1.2.6.2 tls ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 347 1.2.6.2 tls if (ret < 0) 348 1.2.6.2 tls return ret; 349 1.2.6.3 jdolecek KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 350 1.2.6.2 tls p += HDMI_INFOFRAME_HEADER_SIZE; 351 1.2.6.2 tls size -= HDMI_INFOFRAME_HEADER_SIZE; 352 1.2.6.2 tls 353 1.2.6.2 tls p[0] = __SHIFTIN(frame->colorspace, __BITS(6,5)); 354 1.2.6.2 tls p[0] |= __SHIFTIN(frame->active_aspect & 0xf? 1 : 0, __BIT(4)); 355 1.2.6.2 tls p[0] |= __SHIFTIN(frame->top_bar || frame->bottom_bar, __BIT(3)); 356 1.2.6.2 tls p[0] |= __SHIFTIN(frame->left_bar || frame->right_bar, __BIT(2)); 357 1.2.6.2 tls p[0] |= __SHIFTIN(frame->scan_mode, __BITS(1,0)); 358 1.2.6.2 tls 359 1.2.6.2 tls p[1] = __SHIFTIN(frame->colorimetry, __BITS(7,6)); 360 1.2.6.2 tls p[1] |= __SHIFTIN(frame->picture_aspect, __BITS(5,4)); 361 1.2.6.2 tls p[1] |= __SHIFTIN(frame->active_aspect, __BITS(3,0)); 362 1.2.6.2 tls 363 1.2.6.2 tls p[2] = __SHIFTIN(frame->itc? 1 : 0, __BIT(7)); 364 1.2.6.2 tls p[2] |= __SHIFTIN(frame->extended_colorimetry, __BITS(6,4)); 365 1.2.6.2 tls p[2] |= __SHIFTIN(frame->quantization_range, __BITS(3,2)); 366 1.2.6.2 tls p[2] |= __SHIFTIN(frame->nups, __BITS(1,0)); 367 1.2.6.2 tls 368 1.2.6.2 tls p[3] = frame->video_code; 369 1.2.6.2 tls 370 1.2.6.2 tls p[4] = __SHIFTIN(frame->ycc_quantization_range, __BITS(7,6)); 371 1.2.6.2 tls p[4] |= __SHIFTIN(frame->content_type, __BITS(5,4)); 372 1.2.6.2 tls p[4] |= __SHIFTIN(frame->pixel_repeat, __BITS(3,0)); 373 1.2.6.2 tls 374 1.2.6.2 tls le16enc(&p[5], frame->top_bar); 375 1.2.6.2 tls le16enc(&p[7], frame->bottom_bar); 376 1.2.6.2 tls le16enc(&p[9], frame->left_bar); 377 1.2.6.2 tls le16enc(&p[11], frame->right_bar); 378 1.2.6.2 tls CTASSERT(HDMI_AVI_INFOFRAME_SIZE == 13); 379 1.2.6.2 tls 380 1.2.6.2 tls hdmi_infoframe_checksum(buf, length); 381 1.2.6.2 tls 382 1.2.6.2 tls return length; 383 1.2.6.2 tls } 384 1.2.6.2 tls 385 1.2.6.2 tls #define HDMI_SPD_INFOFRAME_SIZE 25 386 1.2.6.2 tls struct hdmi_spd_infoframe { 387 1.2.6.2 tls struct hdmi_infoframe_header header; 388 1.2.6.2 tls char vendor[8]; 389 1.2.6.2 tls char product[16]; 390 1.2.6.2 tls enum hdmi_spd_sdi { 391 1.2.6.2 tls HDMI_SPD_SDI_UNKNOWN = 0, 392 1.2.6.2 tls HDMI_SPD_SDI_DSTB = 1, 393 1.2.6.2 tls HDMI_SPD_SDI_DVDP = 2, 394 1.2.6.2 tls HDMI_SPD_SDI_DVHS = 3, 395 1.2.6.2 tls HDMI_SPD_SDI_HDDVR = 4, 396 1.2.6.2 tls HDMI_SPD_SDI_DVC = 5, 397 1.2.6.2 tls HDMI_SPD_SDI_DSC = 6, 398 1.2.6.2 tls HDMI_SPD_SDI_VCD = 7, 399 1.2.6.2 tls HDMI_SPD_SDI_GAME = 8, 400 1.2.6.2 tls HDMI_SPD_SDI_PC = 9, 401 1.2.6.2 tls HDMI_SPD_SDI_BD = 10, 402 1.2.6.2 tls HDMI_SPD_SDI_SACD = 11, 403 1.2.6.2 tls HDMI_SPD_SDI_HDDVD = 12, 404 1.2.6.2 tls HDMI_SPD_SDI_PMP = 13, 405 1.2.6.2 tls } sdi; 406 1.2.6.2 tls }; 407 1.2.6.2 tls 408 1.2.6.2 tls static inline int 409 1.2.6.2 tls hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame, const char *vendor, 410 1.2.6.2 tls const char *product) 411 1.2.6.2 tls { 412 1.2.6.2 tls static const struct hdmi_spd_infoframe zero_frame; 413 1.2.6.2 tls 414 1.2.6.2 tls *frame = zero_frame; 415 1.2.6.2 tls 416 1.2.6.2 tls hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_SPD, 417 1.2.6.2 tls 1, HDMI_SPD_INFOFRAME_SIZE); 418 1.2.6.2 tls 419 1.2.6.2 tls (void)strlcpy(frame->vendor, vendor, sizeof(frame->vendor)); 420 1.2.6.2 tls (void)strlcpy(frame->product, product, sizeof(frame->product)); 421 1.2.6.2 tls 422 1.2.6.2 tls return 0; 423 1.2.6.2 tls } 424 1.2.6.2 tls 425 1.2.6.2 tls static inline ssize_t 426 1.2.6.2 tls hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buf, 427 1.2.6.2 tls size_t size) 428 1.2.6.2 tls { 429 1.2.6.2 tls const size_t length = HDMI_INFOFRAME_HEADER_SIZE + 430 1.2.6.2 tls HDMI_SPD_INFOFRAME_SIZE; 431 1.2.6.2 tls uint8_t *p = buf; 432 1.2.6.2 tls int ret; 433 1.2.6.2 tls 434 1.2.6.2 tls KASSERT(frame->header.length == HDMI_SPD_INFOFRAME_SIZE); 435 1.2.6.2 tls 436 1.2.6.2 tls ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 437 1.2.6.2 tls if (ret < 0) 438 1.2.6.2 tls return ret; 439 1.2.6.3 jdolecek KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 440 1.2.6.2 tls p += HDMI_INFOFRAME_HEADER_SIZE; 441 1.2.6.2 tls size -= HDMI_INFOFRAME_HEADER_SIZE; 442 1.2.6.2 tls 443 1.2.6.2 tls (void)memcpy(&p[0], frame->vendor, 8); 444 1.2.6.2 tls (void)memcpy(&p[8], frame->product, 16); 445 1.2.6.2 tls p[24] = frame->sdi; 446 1.2.6.2 tls 447 1.2.6.2 tls hdmi_infoframe_checksum(buf, length); 448 1.2.6.2 tls 449 1.2.6.2 tls return length; 450 1.2.6.2 tls } 451 1.2.6.2 tls 452 1.2.6.2 tls #define HDMI_IEEE_OUI 0x000c03 453 1.2.6.2 tls 454 1.2.6.2 tls struct hdmi_vendor_infoframe { 455 1.2.6.2 tls struct hdmi_infoframe_header header; 456 1.2.6.2 tls uint32_t oui; 457 1.2.6.2 tls uint8_t vic; 458 1.2.6.2 tls enum hdmi_3d_structure s3d_struct; 459 1.2.6.2 tls unsigned s3d_ext_data; 460 1.2.6.2 tls }; 461 1.2.6.2 tls 462 1.2.6.2 tls union hdmi_vendor_any_infoframe { 463 1.2.6.2 tls struct { 464 1.2.6.2 tls struct hdmi_infoframe_header header; 465 1.2.6.2 tls uint32_t oui; 466 1.2.6.2 tls } any; 467 1.2.6.2 tls struct hdmi_vendor_infoframe hdmi; 468 1.2.6.2 tls }; 469 1.2.6.2 tls 470 1.2.6.2 tls static inline int 471 1.2.6.2 tls hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame) 472 1.2.6.2 tls { 473 1.2.6.2 tls static const struct hdmi_vendor_infoframe zero_frame; 474 1.2.6.2 tls 475 1.2.6.2 tls *frame = zero_frame; 476 1.2.6.2 tls 477 1.2.6.2 tls hdmi_infoframe_header_init(&frame->header, HDMI_INFOFRAME_TYPE_VENDOR, 478 1.2.6.2 tls 1, 0 /* depends on s3d_struct */); 479 1.2.6.2 tls 480 1.2.6.2 tls frame->oui = HDMI_IEEE_OUI; 481 1.2.6.2 tls frame->s3d_struct = HDMI_3D_STRUCTURE_INVALID; 482 1.2.6.2 tls 483 1.2.6.2 tls return 0; 484 1.2.6.2 tls } 485 1.2.6.2 tls 486 1.2.6.2 tls static inline int 487 1.2.6.2 tls hdmi_vendor_infoframe_pack(const struct hdmi_vendor_infoframe *frame, 488 1.2.6.2 tls void *buf, size_t size) 489 1.2.6.2 tls { 490 1.2.6.2 tls uint8_t *p = buf; 491 1.2.6.2 tls size_t length; 492 1.2.6.2 tls int ret; 493 1.2.6.2 tls 494 1.2.6.2 tls /* Exactly one must be supplied. */ 495 1.2.6.2 tls if ((frame->vic == 0) == 496 1.2.6.2 tls (frame->s3d_struct == HDMI_3D_STRUCTURE_INVALID)) 497 1.2.6.2 tls return -EINVAL; 498 1.2.6.2 tls 499 1.2.6.2 tls length = HDMI_INFOFRAME_HEADER_SIZE + 6; 500 1.2.6.2 tls if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) 501 1.2.6.2 tls length += 1; 502 1.2.6.2 tls 503 1.2.6.2 tls ret = hdmi_infoframe_header_pack(&frame->header, length, p, size); 504 1.2.6.2 tls if (ret < 0) 505 1.2.6.2 tls return ret; 506 1.2.6.3 jdolecek KASSERT(ret == HDMI_INFOFRAME_HEADER_SIZE); 507 1.2.6.2 tls p += HDMI_INFOFRAME_HEADER_SIZE; 508 1.2.6.2 tls size -= HDMI_INFOFRAME_HEADER_SIZE; 509 1.2.6.2 tls 510 1.2.6.2 tls p[0] = 0x03; 511 1.2.6.2 tls p[1] = 0x0c; 512 1.2.6.2 tls p[2] = 0x00; 513 1.2.6.2 tls 514 1.2.6.2 tls if (frame->vic == 0) { 515 1.2.6.2 tls p[3] = __SHIFTIN(0x2, __BITS(6,5)); 516 1.2.6.2 tls p[4] = __SHIFTIN(frame->s3d_struct, __BITS(7,4)); 517 1.2.6.2 tls if (frame->s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) 518 1.2.6.2 tls p[9] = __SHIFTIN(frame->s3d_ext_data, __BITS(7,4)); 519 1.2.6.2 tls } else { 520 1.2.6.2 tls p[3] = __SHIFTIN(0x1, __BITS(6,5)); 521 1.2.6.2 tls p[4] = frame->vic; 522 1.2.6.2 tls } 523 1.2.6.2 tls 524 1.2.6.2 tls hdmi_infoframe_checksum(buf, length); 525 1.2.6.2 tls 526 1.2.6.2 tls return length; 527 1.2.6.2 tls } 528 1.2.6.2 tls 529 1.2.6.2 tls union hdmi_infoframe { 530 1.2.6.2 tls struct hdmi_infoframe_header any; 531 1.2.6.2 tls struct hdmi_avi_infoframe avi; 532 1.2.6.2 tls struct hdmi_spd_infoframe spd; 533 1.2.6.2 tls union hdmi_vendor_any_infoframe vendor; 534 1.2.6.2 tls }; 535 1.2.6.2 tls 536 1.2.6.2 tls static inline ssize_t 537 1.2.6.2 tls hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buf, size_t size) 538 1.2.6.2 tls { 539 1.2.6.2 tls 540 1.2.6.2 tls switch (frame->any.type) { 541 1.2.6.2 tls case HDMI_INFOFRAME_TYPE_AVI: 542 1.2.6.2 tls return hdmi_avi_infoframe_pack(&frame->avi, buf, size); 543 1.2.6.2 tls case HDMI_INFOFRAME_TYPE_SPD: 544 1.2.6.2 tls return hdmi_spd_infoframe_pack(&frame->spd, buf, size); 545 1.2.6.2 tls case HDMI_INFOFRAME_TYPE_VENDOR: 546 1.2.6.2 tls return hdmi_vendor_infoframe_pack(&frame->vendor.hdmi, buf, 547 1.2.6.2 tls size); 548 1.2.6.2 tls default: 549 1.2.6.2 tls return -EINVAL; 550 1.2.6.2 tls } 551 1.2.6.2 tls } 552 1.2.6.2 tls 553 1.2.6.2 tls #endif /* _LINUX_HDMI_H_ */ 554
Indexes created Thu Oct 02 14:10:14 GMT 2025