root/include/linux/hdmi.h

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INCLUDED FROM


/*
 * Copyright (C) 2012 Avionic Design GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef __LINUX_HDMI_H_
#define __LINUX_HDMI_H_

#include <linux/types.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,
};

enum hdmi_scan_mode {
        HDMI_SCAN_MODE_NONE,
        HDMI_SCAN_MODE_OVERSCAN,
        HDMI_SCAN_MODE_UNDERSCAN,
};

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,
};

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,
};

enum hdmi_quantization_range {
        HDMI_QUANTIZATION_RANGE_DEFAULT,
        HDMI_QUANTIZATION_RANGE_LIMITED,
        HDMI_QUANTIZATION_RANGE_FULL,
};

/* 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_NONE,
        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,
};

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 {
        HDMI_AUDIO_CODING_TYPE_EXT_STREAM,
        HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
        HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
        HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
};

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;
        u8 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);

#endif /* _DRM_HDMI_H */

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