1 /* 2 * Copyright (C) 2012 Avionic Design GmbH 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sub license, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the 12 * next paragraph) shall be included in all copies or substantial portions 13 * of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef __LINUX_HDMI_H_ 25 #define __LINUX_HDMI_H_ 26 27 #include <linux/types.h> 28 29 enum hdmi_infoframe_type { 30 HDMI_INFOFRAME_TYPE_VENDOR = 0x81, 31 HDMI_INFOFRAME_TYPE_AVI = 0x82, 32 HDMI_INFOFRAME_TYPE_SPD = 0x83, 33 HDMI_INFOFRAME_TYPE_AUDIO = 0x84, 34 }; 35 36 #define HDMI_IEEE_OUI 0x000c03 37 #define HDMI_INFOFRAME_HEADER_SIZE 4 38 #define HDMI_AVI_INFOFRAME_SIZE 13 39 #define HDMI_SPD_INFOFRAME_SIZE 25 40 #define HDMI_AUDIO_INFOFRAME_SIZE 10 41 42 #define HDMI_INFOFRAME_SIZE(type) \ 43 (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE) 44 45 struct hdmi_any_infoframe { 46 enum hdmi_infoframe_type type; 47 unsigned char version; 48 unsigned char length; 49 }; 50 51 enum hdmi_colorspace { 52 HDMI_COLORSPACE_RGB, 53 HDMI_COLORSPACE_YUV422, 54 HDMI_COLORSPACE_YUV444, 55 }; 56 57 enum hdmi_scan_mode { 58 HDMI_SCAN_MODE_NONE, 59 HDMI_SCAN_MODE_OVERSCAN, 60 HDMI_SCAN_MODE_UNDERSCAN, 61 }; 62 63 enum hdmi_colorimetry { 64 HDMI_COLORIMETRY_NONE, 65 HDMI_COLORIMETRY_ITU_601, 66 HDMI_COLORIMETRY_ITU_709, 67 HDMI_COLORIMETRY_EXTENDED, 68 }; 69 70 enum hdmi_picture_aspect { 71 HDMI_PICTURE_ASPECT_NONE, 72 HDMI_PICTURE_ASPECT_4_3, 73 HDMI_PICTURE_ASPECT_16_9, 74 }; 75 76 enum hdmi_active_aspect { 77 HDMI_ACTIVE_ASPECT_16_9_TOP = 2, 78 HDMI_ACTIVE_ASPECT_14_9_TOP = 3, 79 HDMI_ACTIVE_ASPECT_16_9_CENTER = 4, 80 HDMI_ACTIVE_ASPECT_PICTURE = 8, 81 HDMI_ACTIVE_ASPECT_4_3 = 9, 82 HDMI_ACTIVE_ASPECT_16_9 = 10, 83 HDMI_ACTIVE_ASPECT_14_9 = 11, 84 HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13, 85 HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14, 86 HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15, 87 }; 88 89 enum hdmi_extended_colorimetry { 90 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601, 91 HDMI_EXTENDED_COLORIMETRY_XV_YCC_709, 92 HDMI_EXTENDED_COLORIMETRY_S_YCC_601, 93 HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601, 94 HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB, 95 }; 96 97 enum hdmi_quantization_range { 98 HDMI_QUANTIZATION_RANGE_DEFAULT, 99 HDMI_QUANTIZATION_RANGE_LIMITED, 100 HDMI_QUANTIZATION_RANGE_FULL, 101 }; 102 103 /* non-uniform picture scaling */ 104 enum hdmi_nups { 105 HDMI_NUPS_UNKNOWN, 106 HDMI_NUPS_HORIZONTAL, 107 HDMI_NUPS_VERTICAL, 108 HDMI_NUPS_BOTH, 109 }; 110 111 enum hdmi_ycc_quantization_range { 112 HDMI_YCC_QUANTIZATION_RANGE_LIMITED, 113 HDMI_YCC_QUANTIZATION_RANGE_FULL, 114 }; 115 116 enum hdmi_content_type { 117 HDMI_CONTENT_TYPE_NONE, 118 HDMI_CONTENT_TYPE_PHOTO, 119 HDMI_CONTENT_TYPE_CINEMA, 120 HDMI_CONTENT_TYPE_GAME, 121 }; 122 123 struct hdmi_avi_infoframe { 124 enum hdmi_infoframe_type type; 125 unsigned char version; 126 unsigned char length; 127 enum hdmi_colorspace colorspace; 128 enum hdmi_scan_mode scan_mode; 129 enum hdmi_colorimetry colorimetry; 130 enum hdmi_picture_aspect picture_aspect; 131 enum hdmi_active_aspect active_aspect; 132 bool itc; 133 enum hdmi_extended_colorimetry extended_colorimetry; 134 enum hdmi_quantization_range quantization_range; 135 enum hdmi_nups nups; 136 unsigned char video_code; 137 enum hdmi_ycc_quantization_range ycc_quantization_range; 138 enum hdmi_content_type content_type; 139 unsigned char pixel_repeat; 140 unsigned short top_bar; 141 unsigned short bottom_bar; 142 unsigned short left_bar; 143 unsigned short right_bar; 144 }; 145 146 int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame); 147 ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer, 148 size_t size); 149 150 enum hdmi_spd_sdi { 151 HDMI_SPD_SDI_UNKNOWN, 152 HDMI_SPD_SDI_DSTB, 153 HDMI_SPD_SDI_DVDP, 154 HDMI_SPD_SDI_DVHS, 155 HDMI_SPD_SDI_HDDVR, 156 HDMI_SPD_SDI_DVC, 157 HDMI_SPD_SDI_DSC, 158 HDMI_SPD_SDI_VCD, 159 HDMI_SPD_SDI_GAME, 160 HDMI_SPD_SDI_PC, 161 HDMI_SPD_SDI_BD, 162 HDMI_SPD_SDI_SACD, 163 HDMI_SPD_SDI_HDDVD, 164 HDMI_SPD_SDI_PMP, 165 }; 166 167 struct hdmi_spd_infoframe { 168 enum hdmi_infoframe_type type; 169 unsigned char version; 170 unsigned char length; 171 char vendor[8]; 172 char product[16]; 173 enum hdmi_spd_sdi sdi; 174 }; 175 176 int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame, 177 const char *vendor, const char *product); 178 ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer, 179 size_t size); 180 181 enum hdmi_audio_coding_type { 182 HDMI_AUDIO_CODING_TYPE_STREAM, 183 HDMI_AUDIO_CODING_TYPE_PCM, 184 HDMI_AUDIO_CODING_TYPE_AC3, 185 HDMI_AUDIO_CODING_TYPE_MPEG1, 186 HDMI_AUDIO_CODING_TYPE_MP3, 187 HDMI_AUDIO_CODING_TYPE_MPEG2, 188 HDMI_AUDIO_CODING_TYPE_AAC_LC, 189 HDMI_AUDIO_CODING_TYPE_DTS, 190 HDMI_AUDIO_CODING_TYPE_ATRAC, 191 HDMI_AUDIO_CODING_TYPE_DSD, 192 HDMI_AUDIO_CODING_TYPE_EAC3, 193 HDMI_AUDIO_CODING_TYPE_DTS_HD, 194 HDMI_AUDIO_CODING_TYPE_MLP, 195 HDMI_AUDIO_CODING_TYPE_DST, 196 HDMI_AUDIO_CODING_TYPE_WMA_PRO, 197 }; 198 199 enum hdmi_audio_sample_size { 200 HDMI_AUDIO_SAMPLE_SIZE_STREAM, 201 HDMI_AUDIO_SAMPLE_SIZE_16, 202 HDMI_AUDIO_SAMPLE_SIZE_20, 203 HDMI_AUDIO_SAMPLE_SIZE_24, 204 }; 205 206 enum hdmi_audio_sample_frequency { 207 HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM, 208 HDMI_AUDIO_SAMPLE_FREQUENCY_32000, 209 HDMI_AUDIO_SAMPLE_FREQUENCY_44100, 210 HDMI_AUDIO_SAMPLE_FREQUENCY_48000, 211 HDMI_AUDIO_SAMPLE_FREQUENCY_88200, 212 HDMI_AUDIO_SAMPLE_FREQUENCY_96000, 213 HDMI_AUDIO_SAMPLE_FREQUENCY_176400, 214 HDMI_AUDIO_SAMPLE_FREQUENCY_192000, 215 }; 216 217 enum hdmi_audio_coding_type_ext { 218 HDMI_AUDIO_CODING_TYPE_EXT_STREAM, 219 HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC, 220 HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2, 221 HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND, 222 }; 223 224 struct hdmi_audio_infoframe { 225 enum hdmi_infoframe_type type; 226 unsigned char version; 227 unsigned char length; 228 unsigned char channels; 229 enum hdmi_audio_coding_type coding_type; 230 enum hdmi_audio_sample_size sample_size; 231 enum hdmi_audio_sample_frequency sample_frequency; 232 enum hdmi_audio_coding_type_ext coding_type_ext; 233 unsigned char channel_allocation; 234 unsigned char level_shift_value; 235 bool downmix_inhibit; 236 237 }; 238 239 int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame); 240 ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame, 241 void *buffer, size_t size); 242 243 enum hdmi_3d_structure { 244 HDMI_3D_STRUCTURE_INVALID = -1, 245 HDMI_3D_STRUCTURE_FRAME_PACKING = 0, 246 HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE, 247 HDMI_3D_STRUCTURE_LINE_ALTERNATIVE, 248 HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL, 249 HDMI_3D_STRUCTURE_L_DEPTH, 250 HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH, 251 HDMI_3D_STRUCTURE_TOP_AND_BOTTOM, 252 HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8, 253 }; 254 255 256 struct hdmi_vendor_infoframe { 257 enum hdmi_infoframe_type type; 258 unsigned char version; 259 unsigned char length; 260 unsigned int oui; 261 u8 vic; 262 enum hdmi_3d_structure s3d_struct; 263 unsigned int s3d_ext_data; 264 }; 265 266 int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame); 267 ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame, 268 void *buffer, size_t size); 269 270 union hdmi_vendor_any_infoframe { 271 struct { 272 enum hdmi_infoframe_type type; 273 unsigned char version; 274 unsigned char length; 275 unsigned int oui; 276 } any; 277 struct hdmi_vendor_infoframe hdmi; 278 }; 279 280 /** 281 * union hdmi_infoframe - overall union of all abstract infoframe representations 282 * @any: generic infoframe 283 * @avi: avi infoframe 284 * @spd: spd infoframe 285 * @vendor: union of all vendor infoframes 286 * @audio: audio infoframe 287 * 288 * This is used by the generic pack function. This works since all infoframes 289 * have the same header which also indicates which type of infoframe should be 290 * packed. 291 */ 292 union hdmi_infoframe { 293 struct hdmi_any_infoframe any; 294 struct hdmi_avi_infoframe avi; 295 struct hdmi_spd_infoframe spd; 296 union hdmi_vendor_any_infoframe vendor; 297 struct hdmi_audio_infoframe audio; 298 }; 299 300 ssize_t 301 hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size); 302 303 #endif /* _DRM_HDMI_H */ 304