diff options
Diffstat (limited to 'include/linux/hdmi.h')
| -rw-r--r-- | include/linux/hdmi.h | 132 |
1 files changed, 123 insertions, 9 deletions
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h index d271ff23984f..96bda41d9148 100644 --- a/include/linux/hdmi.h +++ b/include/linux/hdmi.h @@ -27,11 +27,27 @@ #include <linux/types.h> #include <linux/device.h> +enum hdmi_packet_type { + HDMI_PACKET_TYPE_NULL = 0x00, + HDMI_PACKET_TYPE_AUDIO_CLOCK_REGEN = 0x01, + HDMI_PACKET_TYPE_AUDIO_SAMPLE = 0x02, + HDMI_PACKET_TYPE_GENERAL_CONTROL = 0x03, + HDMI_PACKET_TYPE_ACP = 0x04, + HDMI_PACKET_TYPE_ISRC1 = 0x05, + HDMI_PACKET_TYPE_ISRC2 = 0x06, + HDMI_PACKET_TYPE_ONE_BIT_AUDIO_SAMPLE = 0x07, + HDMI_PACKET_TYPE_DST_AUDIO = 0x08, + HDMI_PACKET_TYPE_HBR_AUDIO_STREAM = 0x09, + HDMI_PACKET_TYPE_GAMUT_METADATA = 0x0a, + /* + enum hdmi_infoframe_type */ +}; + enum hdmi_infoframe_type { HDMI_INFOFRAME_TYPE_VENDOR = 0x81, HDMI_INFOFRAME_TYPE_AVI = 0x82, HDMI_INFOFRAME_TYPE_SPD = 0x83, HDMI_INFOFRAME_TYPE_AUDIO = 0x84, + HDMI_INFOFRAME_TYPE_DRM = 0x87, }; #define HDMI_IEEE_OUI 0x000c03 @@ -40,6 +56,17 @@ enum hdmi_infoframe_type { #define HDMI_AVI_INFOFRAME_SIZE 13 #define HDMI_SPD_INFOFRAME_SIZE 25 #define HDMI_AUDIO_INFOFRAME_SIZE 10 +#define HDMI_DRM_INFOFRAME_SIZE 26 +#define HDMI_VENDOR_INFOFRAME_SIZE 4 + +/* + * HDMI 1.3a table 5-14 states that the largest InfoFrame_length is 27, + * not including the packet header or checksum byte. We include the + * checksum byte in HDMI_INFOFRAME_HEADER_SIZE, so this should allow + * HDMI_INFOFRAME_SIZE(MAX) to be the largest buffer we could ever need + * for any HDMI infoframe. + */ +#define HDMI_MAX_INFOFRAME_SIZE 27 #define HDMI_INFOFRAME_SIZE(type) \ (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE) @@ -101,8 +128,8 @@ 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, + HDMI_EXTENDED_COLORIMETRY_OPYCC_601, + HDMI_EXTENDED_COLORIMETRY_OPRGB, /* The following EC values are only defined in CEA-861-F. */ HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM, @@ -137,32 +164,73 @@ enum hdmi_content_type { HDMI_CONTENT_TYPE_GAME, }; +enum hdmi_metadata_type { + HDMI_STATIC_METADATA_TYPE1 = 0, +}; + +enum hdmi_eotf { + HDMI_EOTF_TRADITIONAL_GAMMA_SDR, + HDMI_EOTF_TRADITIONAL_GAMMA_HDR, + HDMI_EOTF_SMPTE_ST2084, + HDMI_EOTF_BT_2100_HLG, +}; + struct hdmi_avi_infoframe { enum hdmi_infoframe_type type; unsigned char version; unsigned char length; + bool itc; + unsigned char pixel_repeat; 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); +/* DRM Infoframe as per CTA 861.G spec */ +struct hdmi_drm_infoframe { + enum hdmi_infoframe_type type; + unsigned char version; + unsigned char length; + enum hdmi_eotf eotf; + enum hdmi_metadata_type metadata_type; + struct { + u16 x, y; + } display_primaries[3]; + struct { + u16 x, y; + } white_point; + u16 max_display_mastering_luminance; + u16 min_display_mastering_luminance; + u16 max_cll; + u16 max_fall; +}; + +void 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); +ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame, + void *buffer, size_t size); +int hdmi_avi_infoframe_check(struct hdmi_avi_infoframe *frame); +int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame); +ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, void *buffer, + size_t size); +ssize_t hdmi_drm_infoframe_pack_only(const struct hdmi_drm_infoframe *frame, + void *buffer, size_t size); +int hdmi_drm_infoframe_check(struct hdmi_drm_infoframe *frame); +int hdmi_drm_infoframe_unpack_only(struct hdmi_drm_infoframe *frame, + const void *buffer, size_t size); enum hdmi_spd_sdi { HDMI_SPD_SDI_UNKNOWN, @@ -194,6 +262,9 @@ 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); +ssize_t hdmi_spd_infoframe_pack_only(const struct hdmi_spd_infoframe *frame, + void *buffer, size_t size); +int hdmi_spd_infoframe_check(struct hdmi_spd_infoframe *frame); enum hdmi_audio_coding_type { HDMI_AUDIO_CODING_TYPE_STREAM, @@ -272,6 +343,14 @@ struct hdmi_audio_infoframe { 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); +ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame, + void *buffer, size_t size); +int hdmi_audio_infoframe_check(const struct hdmi_audio_infoframe *frame); + +struct dp_sdp; +ssize_t +hdmi_audio_infoframe_pack_for_dp(const struct hdmi_audio_infoframe *frame, + struct dp_sdp *sdp, u8 dp_version); enum hdmi_3d_structure { HDMI_3D_STRUCTURE_INVALID = -1, @@ -296,9 +375,39 @@ struct hdmi_vendor_infoframe { unsigned int s3d_ext_data; }; +/* HDR Metadata as per 861.G spec */ +struct hdr_static_metadata { + __u8 eotf; + __u8 metadata_type; + __u16 max_cll; + __u16 max_fall; + __u16 min_cll; +}; + +/** + * struct hdr_sink_metadata - HDR sink metadata + * + * Metadata Information read from Sink's EDID + */ +struct hdr_sink_metadata { + /** + * @metadata_type: Static_Metadata_Descriptor_ID. + */ + __u32 metadata_type; + /** + * @hdmi_type1: HDR Metadata Infoframe. + */ + union { + struct hdr_static_metadata hdmi_type1; + }; +}; + 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); +ssize_t hdmi_vendor_infoframe_pack_only(const struct hdmi_vendor_infoframe *frame, + void *buffer, size_t size); +int hdmi_vendor_infoframe_check(struct hdmi_vendor_infoframe *frame); union hdmi_vendor_any_infoframe { struct { @@ -317,6 +426,7 @@ union hdmi_vendor_any_infoframe { * @spd: spd infoframe * @vendor: union of all vendor infoframes * @audio: audio infoframe + * @drm: Dynamic Range and Mastering 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 @@ -328,12 +438,16 @@ union hdmi_infoframe { struct hdmi_spd_infoframe spd; union hdmi_vendor_any_infoframe vendor; struct hdmi_audio_infoframe audio; + struct hdmi_drm_infoframe drm; }; -ssize_t -hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size); -int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer); +ssize_t hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, + size_t size); +ssize_t hdmi_infoframe_pack_only(const union hdmi_infoframe *frame, + void *buffer, size_t size); +int hdmi_infoframe_unpack(union hdmi_infoframe *frame, + const void *buffer, size_t size); void hdmi_infoframe_log(const char *level, struct device *dev, - union hdmi_infoframe *frame); + const union hdmi_infoframe *frame); #endif /* _DRM_HDMI_H */ |