FreeBSD/Linux Kernel Cross Reference
sys/arm/nvidia/drm2/hdmi.h

     /*
      * Copyright (C) 2012 Avionic Design GmbH
      *
      * Permission is hereby granted, free of charge, to any person obtaining a
      * copy of this software and associated documentation files (the "Software"),
      * to deal in the Software without restriction, including without limitation
      * the rights to use, copy, modify, merge, publish, distribute, sub license,
      * and/or sell copies of the Software, and to permit persons to whom the
      * Software is furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice (including the
     * next paragraph) shall be included in all copies or substantial portions
     * of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     * DEALINGS IN THE SOFTWARE.
     *
     * $FreeBSD$
     */
    
    #ifndef _HDMI_H_
    #define _HDMI_H_
    
    enum hdmi_infoframe_type {
            HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
            HDMI_INFOFRAME_TYPE_AVI = 0x82,
            HDMI_INFOFRAME_TYPE_SPD = 0x83,
            HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
    };
    
    #define HDMI_IEEE_OUI 0x000c03
    #define HDMI_INFOFRAME_HEADER_SIZE  4
    #define HDMI_AVI_INFOFRAME_SIZE    13
    #define HDMI_SPD_INFOFRAME_SIZE    25
    #define HDMI_AUDIO_INFOFRAME_SIZE  10
    
    #define HDMI_INFOFRAME_SIZE(type)       \
            (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
    
    struct hdmi_any_infoframe {
            enum hdmi_infoframe_type type;
            unsigned char version;
            unsigned char length;
    };
    
    enum hdmi_colorspace {
            HDMI_COLORSPACE_RGB,
            HDMI_COLORSPACE_YUV422,
            HDMI_COLORSPACE_YUV444,
            HDMI_COLORSPACE_YUV420,
            HDMI_COLORSPACE_RESERVED4,
            HDMI_COLORSPACE_RESERVED5,
            HDMI_COLORSPACE_RESERVED6,
            HDMI_COLORSPACE_IDO_DEFINED,
    };
    
    enum hdmi_scan_mode {
            HDMI_SCAN_MODE_NONE,
            HDMI_SCAN_MODE_OVERSCAN,
            HDMI_SCAN_MODE_UNDERSCAN,
            HDMI_SCAN_MODE_RESERVED,
    };
    
    enum hdmi_colorimetry {
            HDMI_COLORIMETRY_NONE,
            HDMI_COLORIMETRY_ITU_601,
            HDMI_COLORIMETRY_ITU_709,
            HDMI_COLORIMETRY_EXTENDED,
    };
    
    enum hdmi_picture_aspect {
            HDMI_PICTURE_ASPECT_NONE,
            HDMI_PICTURE_ASPECT_4_3,
            HDMI_PICTURE_ASPECT_16_9,
            HDMI_PICTURE_ASPECT_RESERVED,
    };
    
    enum hdmi_active_aspect {
            HDMI_ACTIVE_ASPECT_16_9_TOP = 2,
            HDMI_ACTIVE_ASPECT_14_9_TOP = 3,
            HDMI_ACTIVE_ASPECT_16_9_CENTER = 4,
            HDMI_ACTIVE_ASPECT_PICTURE = 8,
            HDMI_ACTIVE_ASPECT_4_3 = 9,
            HDMI_ACTIVE_ASPECT_16_9 = 10,
            HDMI_ACTIVE_ASPECT_14_9 = 11,
            HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13,
            HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14,
            HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15,
    };
    
    enum hdmi_extended_colorimetry {
            HDMI_EXTENDED_COLORIMETRY_XV_YCC_601,
            HDMI_EXTENDED_COLORIMETRY_XV_YCC_709,
            HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
           HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601,
           HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB,
   
           /* The following EC values are only defined in CEA-861-F. */
           HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM,
           HDMI_EXTENDED_COLORIMETRY_BT2020,
           HDMI_EXTENDED_COLORIMETRY_RESERVED,
   };
   
   enum hdmi_quantization_range {
           HDMI_QUANTIZATION_RANGE_DEFAULT,
           HDMI_QUANTIZATION_RANGE_LIMITED,
           HDMI_QUANTIZATION_RANGE_FULL,
           HDMI_QUANTIZATION_RANGE_RESERVED,
   };
   
   /* non-uniform picture scaling */
   enum hdmi_nups {
           HDMI_NUPS_UNKNOWN,
           HDMI_NUPS_HORIZONTAL,
           HDMI_NUPS_VERTICAL,
           HDMI_NUPS_BOTH,
   };
   
   enum hdmi_ycc_quantization_range {
           HDMI_YCC_QUANTIZATION_RANGE_LIMITED,
           HDMI_YCC_QUANTIZATION_RANGE_FULL,
   };
   
   enum hdmi_content_type {
           HDMI_CONTENT_TYPE_GRAPHICS,
           HDMI_CONTENT_TYPE_PHOTO,
           HDMI_CONTENT_TYPE_CINEMA,
           HDMI_CONTENT_TYPE_GAME,
   };
   
   struct hdmi_avi_infoframe {
           enum hdmi_infoframe_type type;
           unsigned char version;
           unsigned char length;
           enum hdmi_colorspace colorspace;
           enum hdmi_scan_mode scan_mode;
           enum hdmi_colorimetry colorimetry;
           enum hdmi_picture_aspect picture_aspect;
           enum hdmi_active_aspect active_aspect;
           bool itc;
           enum hdmi_extended_colorimetry extended_colorimetry;
           enum hdmi_quantization_range quantization_range;
           enum hdmi_nups nups;
           unsigned char video_code;
           enum hdmi_ycc_quantization_range ycc_quantization_range;
           enum hdmi_content_type content_type;
           unsigned char pixel_repeat;
           unsigned short top_bar;
           unsigned short bottom_bar;
           unsigned short left_bar;
           unsigned short right_bar;
   };
   
   int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
   ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
                                   size_t size);
   
   enum hdmi_spd_sdi {
           HDMI_SPD_SDI_UNKNOWN,
           HDMI_SPD_SDI_DSTB,
           HDMI_SPD_SDI_DVDP,
           HDMI_SPD_SDI_DVHS,
           HDMI_SPD_SDI_HDDVR,
           HDMI_SPD_SDI_DVC,
           HDMI_SPD_SDI_DSC,
           HDMI_SPD_SDI_VCD,
           HDMI_SPD_SDI_GAME,
           HDMI_SPD_SDI_PC,
           HDMI_SPD_SDI_BD,
           HDMI_SPD_SDI_SACD,
           HDMI_SPD_SDI_HDDVD,
           HDMI_SPD_SDI_PMP,
   };
   
   struct hdmi_spd_infoframe {
           enum hdmi_infoframe_type type;
           unsigned char version;
           unsigned char length;
           char vendor[8];
           char product[16];
           enum hdmi_spd_sdi sdi;
   };
   
   int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
                               const char *vendor, const char *product);
   ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
                                   size_t size);
   
   enum hdmi_audio_coding_type {
           HDMI_AUDIO_CODING_TYPE_STREAM,
           HDMI_AUDIO_CODING_TYPE_PCM,
           HDMI_AUDIO_CODING_TYPE_AC3,
           HDMI_AUDIO_CODING_TYPE_MPEG1,
           HDMI_AUDIO_CODING_TYPE_MP3,
           HDMI_AUDIO_CODING_TYPE_MPEG2,
           HDMI_AUDIO_CODING_TYPE_AAC_LC,
           HDMI_AUDIO_CODING_TYPE_DTS,
           HDMI_AUDIO_CODING_TYPE_ATRAC,
           HDMI_AUDIO_CODING_TYPE_DSD,
           HDMI_AUDIO_CODING_TYPE_EAC3,
           HDMI_AUDIO_CODING_TYPE_DTS_HD,
           HDMI_AUDIO_CODING_TYPE_MLP,
           HDMI_AUDIO_CODING_TYPE_DST,
           HDMI_AUDIO_CODING_TYPE_WMA_PRO,
           HDMI_AUDIO_CODING_TYPE_CXT,
   };
   
   enum hdmi_audio_sample_size {
           HDMI_AUDIO_SAMPLE_SIZE_STREAM,
           HDMI_AUDIO_SAMPLE_SIZE_16,
           HDMI_AUDIO_SAMPLE_SIZE_20,
           HDMI_AUDIO_SAMPLE_SIZE_24,
   };
   
   enum hdmi_audio_sample_frequency {
           HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM,
           HDMI_AUDIO_SAMPLE_FREQUENCY_32000,
           HDMI_AUDIO_SAMPLE_FREQUENCY_44100,
           HDMI_AUDIO_SAMPLE_FREQUENCY_48000,
           HDMI_AUDIO_SAMPLE_FREQUENCY_88200,
           HDMI_AUDIO_SAMPLE_FREQUENCY_96000,
           HDMI_AUDIO_SAMPLE_FREQUENCY_176400,
           HDMI_AUDIO_SAMPLE_FREQUENCY_192000,
   };
   
   enum hdmi_audio_coding_type_ext {
           /* Refer to Audio Coding Type (CT) field in Data Byte 1 */
           HDMI_AUDIO_CODING_TYPE_EXT_CT,
   
           /*
            * The next three CXT values are defined in CEA-861-E only.
            * They do not exist in older versions, and in CEA-861-F they are
            * defined as 'Not in use'.
            */
           HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
           HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
           HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
   
           /* The following CXT values are only defined in CEA-861-F. */
           HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC,
           HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2,
           HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC,
           HDMI_AUDIO_CODING_TYPE_EXT_DRA,
           HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND,
           HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND = 10,
   };
   
   struct hdmi_audio_infoframe {
           enum hdmi_infoframe_type type;
           unsigned char version;
           unsigned char length;
           unsigned char channels;
           enum hdmi_audio_coding_type coding_type;
           enum hdmi_audio_sample_size sample_size;
           enum hdmi_audio_sample_frequency sample_frequency;
           enum hdmi_audio_coding_type_ext coding_type_ext;
           unsigned char channel_allocation;
           unsigned char level_shift_value;
           bool downmix_inhibit;
   
   };
   
   int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame);
   ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
                                     void *buffer, size_t size);
   
   enum hdmi_3d_structure {
           HDMI_3D_STRUCTURE_INVALID = -1,
           HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
           HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
           HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
           HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
           HDMI_3D_STRUCTURE_L_DEPTH,
           HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
           HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
           HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
   };
   
   struct hdmi_vendor_infoframe {
           enum hdmi_infoframe_type type;
           unsigned char version;
           unsigned char length;
           unsigned int oui;
           uint8_t vic;
           enum hdmi_3d_structure s3d_struct;
           unsigned int s3d_ext_data;
   };
   
   int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
   ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
                                      void *buffer, size_t size);
   
   union hdmi_vendor_any_infoframe {
           struct {
                   enum hdmi_infoframe_type type;
                   unsigned char version;
                   unsigned char length;
                   unsigned int oui;
           } any;
           struct hdmi_vendor_infoframe hdmi;
   };
   
   /**
    * union hdmi_infoframe - overall union of all abstract infoframe representations
    * @any: generic infoframe
    * @avi: avi infoframe
    * @spd: spd infoframe
    * @vendor: union of all vendor infoframes
    * @audio: audio infoframe
    *
    * This is used by the generic pack function. This works since all infoframes
    * have the same header which also indicates which type of infoframe should be
    * packed.
    */
   union hdmi_infoframe {
           struct hdmi_any_infoframe any;
           struct hdmi_avi_infoframe avi;
           struct hdmi_spd_infoframe spd;
           union hdmi_vendor_any_infoframe vendor;
           struct hdmi_audio_infoframe audio;
   };
   
   ssize_t
   hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size);
   int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer);
   void hdmi_infoframe_log(union hdmi_infoframe *frame);
   
   #endif /* _HDMI_H */

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