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
  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 */