include/linux/hdmi.h

   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 #include <linux/device.h>
  29
  30 enum hdmi_infoframe_type {
  31         HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
  32         HDMI_INFOFRAME_TYPE_AVI = 0x82,
  33         HDMI_INFOFRAME_TYPE_SPD = 0x83,
  34         HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
  35 };
  36
  37 #define HDMI_IEEE_OUI 0x000c03
  38 #define HDMI_FORUM_IEEE_OUI 0xc45dd8
  39 #define HDMI_INFOFRAME_HEADER_SIZE  4
  40 #define HDMI_AVI_INFOFRAME_SIZE    13
  41 #define HDMI_SPD_INFOFRAME_SIZE    25
  42 #define HDMI_AUDIO_INFOFRAME_SIZE  10
  43
  44 #define HDMI_INFOFRAME_SIZE(type)       \
  45         (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
  46
  47 struct hdmi_any_infoframe {
  48         enum hdmi_infoframe_type type;
  49         unsigned char version;
  50         unsigned char length;
  51 };
  52
  53 enum hdmi_colorspace {
  54         HDMI_COLORSPACE_RGB,
  55         HDMI_COLORSPACE_YUV422,
  56         HDMI_COLORSPACE_YUV444,
  57         HDMI_COLORSPACE_YUV420,
  58         HDMI_COLORSPACE_RESERVED4,
  59         HDMI_COLORSPACE_RESERVED5,
  60         HDMI_COLORSPACE_RESERVED6,
  61         HDMI_COLORSPACE_IDO_DEFINED,
  62 };
  63
  64 enum hdmi_scan_mode {
  65         HDMI_SCAN_MODE_NONE,
  66         HDMI_SCAN_MODE_OVERSCAN,
  67         HDMI_SCAN_MODE_UNDERSCAN,
  68         HDMI_SCAN_MODE_RESERVED,
  69 };
  70
  71 enum hdmi_colorimetry {
  72         HDMI_COLORIMETRY_NONE,
  73         HDMI_COLORIMETRY_ITU_601,
  74         HDMI_COLORIMETRY_ITU_709,
  75         HDMI_COLORIMETRY_EXTENDED,
  76 };
  77
  78 enum hdmi_picture_aspect {
  79         HDMI_PICTURE_ASPECT_NONE,
  80         HDMI_PICTURE_ASPECT_4_3,
  81         HDMI_PICTURE_ASPECT_16_9,
  82         HDMI_PICTURE_ASPECT_64_27,
  83         HDMI_PICTURE_ASPECT_256_135,
  84         HDMI_PICTURE_ASPECT_RESERVED,
  85 };
  86
  87 enum hdmi_active_aspect {
  88         HDMI_ACTIVE_ASPECT_16_9_TOP = 2,
  89         HDMI_ACTIVE_ASPECT_14_9_TOP = 3,
  90         HDMI_ACTIVE_ASPECT_16_9_CENTER = 4,
  91         HDMI_ACTIVE_ASPECT_PICTURE = 8,
  92         HDMI_ACTIVE_ASPECT_4_3 = 9,
  93         HDMI_ACTIVE_ASPECT_16_9 = 10,
  94         HDMI_ACTIVE_ASPECT_14_9 = 11,
  95         HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13,
  96         HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14,
  97         HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15,
  98 };
  99
 100 enum hdmi_extended_colorimetry {
 101         HDMI_EXTENDED_COLORIMETRY_XV_YCC_601,
 102         HDMI_EXTENDED_COLORIMETRY_XV_YCC_709,
 103         HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
 104         HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601,
 105         HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB,
 106
 107         /* The following EC values are only defined in CEA-861-F. */
 108         HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM,
 109         HDMI_EXTENDED_COLORIMETRY_BT2020,
 110         HDMI_EXTENDED_COLORIMETRY_RESERVED,
 111 };
 112
 113 enum hdmi_quantization_range {
 114         HDMI_QUANTIZATION_RANGE_DEFAULT,
 115         HDMI_QUANTIZATION_RANGE_LIMITED,
 116         HDMI_QUANTIZATION_RANGE_FULL,
 117         HDMI_QUANTIZATION_RANGE_RESERVED,
 118 };
 119
 120 /* non-uniform picture scaling */
 121 enum hdmi_nups {
 122         HDMI_NUPS_UNKNOWN,
 123         HDMI_NUPS_HORIZONTAL,
 124         HDMI_NUPS_VERTICAL,
 125         HDMI_NUPS_BOTH,
 126 };
 127
 128 enum hdmi_ycc_quantization_range {
 129         HDMI_YCC_QUANTIZATION_RANGE_LIMITED,
 130         HDMI_YCC_QUANTIZATION_RANGE_FULL,
 131 };
 132
 133 enum hdmi_content_type {
 134         HDMI_CONTENT_TYPE_GRAPHICS,
 135         HDMI_CONTENT_TYPE_PHOTO,
 136         HDMI_CONTENT_TYPE_CINEMA,
 137         HDMI_CONTENT_TYPE_GAME,
 138 };
 139
 140 struct hdmi_avi_infoframe {
 141         enum hdmi_infoframe_type type;
 142         unsigned char version;
 143         unsigned char length;
 144         enum hdmi_colorspace colorspace;
 145         enum hdmi_scan_mode scan_mode;
 146         enum hdmi_colorimetry colorimetry;
 147         enum hdmi_picture_aspect picture_aspect;
 148         enum hdmi_active_aspect active_aspect;
 149         bool itc;
 150         enum hdmi_extended_colorimetry extended_colorimetry;
 151         enum hdmi_quantization_range quantization_range;
 152         enum hdmi_nups nups;
 153         unsigned char video_code;
 154         enum hdmi_ycc_quantization_range ycc_quantization_range;
 155         enum hdmi_content_type content_type;
 156         unsigned char pixel_repeat;
 157         unsigned short top_bar;
 158         unsigned short bottom_bar;
 159         unsigned short left_bar;
 160         unsigned short right_bar;
 161 };
 162
 163 int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
 164 ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
 165                                 size_t size);
 166
 167 enum hdmi_spd_sdi {
 168         HDMI_SPD_SDI_UNKNOWN,
 169         HDMI_SPD_SDI_DSTB,
 170         HDMI_SPD_SDI_DVDP,
 171         HDMI_SPD_SDI_DVHS,
 172         HDMI_SPD_SDI_HDDVR,
 173         HDMI_SPD_SDI_DVC,
 174         HDMI_SPD_SDI_DSC,
 175         HDMI_SPD_SDI_VCD,
 176         HDMI_SPD_SDI_GAME,
 177         HDMI_SPD_SDI_PC,
 178         HDMI_SPD_SDI_BD,
 179         HDMI_SPD_SDI_SACD,
 180         HDMI_SPD_SDI_HDDVD,
 181         HDMI_SPD_SDI_PMP,
 182 };
 183
 184 struct hdmi_spd_infoframe {
 185         enum hdmi_infoframe_type type;
 186         unsigned char version;
 187         unsigned char length;
 188         char vendor[8];
 189         char product[16];
 190         enum hdmi_spd_sdi sdi;
 191 };
 192
 193 int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
 194                             const char *vendor, const char *product);
 195 ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
 196                                 size_t size);
 197
 198 enum hdmi_audio_coding_type {
 199         HDMI_AUDIO_CODING_TYPE_STREAM,
 200         HDMI_AUDIO_CODING_TYPE_PCM,
 201         HDMI_AUDIO_CODING_TYPE_AC3,
 202         HDMI_AUDIO_CODING_TYPE_MPEG1,
 203         HDMI_AUDIO_CODING_TYPE_MP3,
 204         HDMI_AUDIO_CODING_TYPE_MPEG2,
 205         HDMI_AUDIO_CODING_TYPE_AAC_LC,
 206         HDMI_AUDIO_CODING_TYPE_DTS,
 207         HDMI_AUDIO_CODING_TYPE_ATRAC,
 208         HDMI_AUDIO_CODING_TYPE_DSD,
 209         HDMI_AUDIO_CODING_TYPE_EAC3,
 210         HDMI_AUDIO_CODING_TYPE_DTS_HD,
 211         HDMI_AUDIO_CODING_TYPE_MLP,
 212         HDMI_AUDIO_CODING_TYPE_DST,
 213         HDMI_AUDIO_CODING_TYPE_WMA_PRO,
 214         HDMI_AUDIO_CODING_TYPE_CXT,
 215 };
 216
 217 enum hdmi_audio_sample_size {
 218         HDMI_AUDIO_SAMPLE_SIZE_STREAM,
 219         HDMI_AUDIO_SAMPLE_SIZE_16,
 220         HDMI_AUDIO_SAMPLE_SIZE_20,
 221         HDMI_AUDIO_SAMPLE_SIZE_24,
 222 };
 223
 224 enum hdmi_audio_sample_frequency {
 225         HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM,
 226         HDMI_AUDIO_SAMPLE_FREQUENCY_32000,
 227         HDMI_AUDIO_SAMPLE_FREQUENCY_44100,
 228         HDMI_AUDIO_SAMPLE_FREQUENCY_48000,
 229         HDMI_AUDIO_SAMPLE_FREQUENCY_88200,
 230         HDMI_AUDIO_SAMPLE_FREQUENCY_96000,
 231         HDMI_AUDIO_SAMPLE_FREQUENCY_176400,
 232         HDMI_AUDIO_SAMPLE_FREQUENCY_192000,
 233 };
 234
 235 enum hdmi_audio_coding_type_ext {
 236         /* Refer to Audio Coding Type (CT) field in Data Byte 1 */
 237         HDMI_AUDIO_CODING_TYPE_EXT_CT,
 238
 239         /*
 240          * The next three CXT values are defined in CEA-861-E only.
 241          * They do not exist in older versions, and in CEA-861-F they are
 242          * defined as 'Not in use'.
 243          */
 244         HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
 245         HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
 246         HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
 247
 248         /* The following CXT values are only defined in CEA-861-F. */
 249         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC,
 250         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2,
 251         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC,
 252         HDMI_AUDIO_CODING_TYPE_EXT_DRA,
 253         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND,
 254         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND = 10,
 255 };
 256
 257 struct hdmi_audio_infoframe {
 258         enum hdmi_infoframe_type type;
 259         unsigned char version;
 260         unsigned char length;
 261         unsigned char channels;
 262         enum hdmi_audio_coding_type coding_type;
 263         enum hdmi_audio_sample_size sample_size;
 264         enum hdmi_audio_sample_frequency sample_frequency;
 265         enum hdmi_audio_coding_type_ext coding_type_ext;
 266         unsigned char channel_allocation;
 267         unsigned char level_shift_value;
 268         bool downmix_inhibit;
 269
 270 };
 271
 272 int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame);
 273 ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
 274                                   void *buffer, size_t size);
 275
 276 enum hdmi_3d_structure {
 277         HDMI_3D_STRUCTURE_INVALID = -1,
 278         HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
 279         HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
 280         HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
 281         HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
 282         HDMI_3D_STRUCTURE_L_DEPTH,
 283         HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
 284         HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
 285         HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
 286 };
 287
 288
 289 struct hdmi_vendor_infoframe {
 290         enum hdmi_infoframe_type type;
 291         unsigned char version;
 292         unsigned char length;
 293         unsigned int oui;
 294         u8 vic;
 295         enum hdmi_3d_structure s3d_struct;
 296         unsigned int s3d_ext_data;
 297 };
 298
 299 int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
 300 ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
 301                                    void *buffer, size_t size);
 302
 303 union hdmi_vendor_any_infoframe {
 304         struct {
 305                 enum hdmi_infoframe_type type;
 306                 unsigned char version;
 307                 unsigned char length;
 308                 unsigned int oui;
 309         } any;
 310         struct hdmi_vendor_infoframe hdmi;
 311 };
 312
 313 /**
 314  * union hdmi_infoframe - overall union of all abstract infoframe representations
 315  * @any: generic infoframe
 316  * @avi: avi infoframe
 317  * @spd: spd infoframe
 318  * @vendor: union of all vendor infoframes
 319  * @audio: audio infoframe
 320  *
 321  * This is used by the generic pack function. This works since all infoframes
 322  * have the same header which also indicates which type of infoframe should be
 323  * packed.
 324  */
 325 union hdmi_infoframe {
 326         struct hdmi_any_infoframe any;
 327         struct hdmi_avi_infoframe avi;
 328         struct hdmi_spd_infoframe spd;
 329         union hdmi_vendor_any_infoframe vendor;
 330         struct hdmi_audio_infoframe audio;
 331 };
 332
 333 ssize_t
 334 hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size);
 335 int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer);
 336 void hdmi_infoframe_log(const char *level, struct device *dev,
 337                         union hdmi_infoframe *frame);
 338
 339 #endif /* _DRM_HDMI_H */