455 lines
13 KiB
C
455 lines
13 KiB
C
/*
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* Copyright (C) 2012 Avionic Design GmbH
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __LINUX_HDMI_H_
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#define __LINUX_HDMI_H_
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#include <linux/types.h>
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#include <linux/device.h>
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enum hdmi_packet_type {
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HDMI_PACKET_TYPE_NULL = 0x00,
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HDMI_PACKET_TYPE_AUDIO_CLOCK_REGEN = 0x01,
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HDMI_PACKET_TYPE_AUDIO_SAMPLE = 0x02,
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HDMI_PACKET_TYPE_GENERAL_CONTROL = 0x03,
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HDMI_PACKET_TYPE_ACP = 0x04,
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HDMI_PACKET_TYPE_ISRC1 = 0x05,
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HDMI_PACKET_TYPE_ISRC2 = 0x06,
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HDMI_PACKET_TYPE_ONE_BIT_AUDIO_SAMPLE = 0x07,
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HDMI_PACKET_TYPE_DST_AUDIO = 0x08,
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HDMI_PACKET_TYPE_HBR_AUDIO_STREAM = 0x09,
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HDMI_PACKET_TYPE_GAMUT_METADATA = 0x0a,
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/* + enum hdmi_infoframe_type */
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};
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enum hdmi_infoframe_type {
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HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
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HDMI_INFOFRAME_TYPE_AVI = 0x82,
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HDMI_INFOFRAME_TYPE_SPD = 0x83,
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HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
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HDMI_INFOFRAME_TYPE_DRM = 0x87,
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};
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#define HDMI_IEEE_OUI 0x000c03
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#define HDMI_FORUM_IEEE_OUI 0xc45dd8
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#define HDMI_INFOFRAME_HEADER_SIZE 4
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#define HDMI_AVI_INFOFRAME_SIZE 13
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#define HDMI_SPD_INFOFRAME_SIZE 25
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#define HDMI_AUDIO_INFOFRAME_SIZE 10
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#define HDMI_DRM_INFOFRAME_SIZE 26
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#define HDMI_VENDOR_INFOFRAME_SIZE 4
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/*
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* HDMI 1.3a table 5-14 states that the largest InfoFrame_length is 27,
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* not including the packet header or checksum byte. We include the
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* checksum byte in HDMI_INFOFRAME_HEADER_SIZE, so this should allow
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* HDMI_INFOFRAME_SIZE(MAX) to be the largest buffer we could ever need
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* for any HDMI infoframe.
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*/
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#define HDMI_MAX_INFOFRAME_SIZE 27
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#define HDMI_INFOFRAME_SIZE(type) \
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(HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
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struct hdmi_any_infoframe {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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};
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enum hdmi_colorspace {
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HDMI_COLORSPACE_RGB,
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HDMI_COLORSPACE_YUV422,
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HDMI_COLORSPACE_YUV444,
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HDMI_COLORSPACE_YUV420,
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HDMI_COLORSPACE_RESERVED4,
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HDMI_COLORSPACE_RESERVED5,
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HDMI_COLORSPACE_RESERVED6,
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HDMI_COLORSPACE_IDO_DEFINED,
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};
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enum hdmi_scan_mode {
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HDMI_SCAN_MODE_NONE,
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HDMI_SCAN_MODE_OVERSCAN,
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HDMI_SCAN_MODE_UNDERSCAN,
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HDMI_SCAN_MODE_RESERVED,
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};
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enum hdmi_colorimetry {
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HDMI_COLORIMETRY_NONE,
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HDMI_COLORIMETRY_ITU_601,
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HDMI_COLORIMETRY_ITU_709,
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HDMI_COLORIMETRY_EXTENDED,
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};
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enum hdmi_picture_aspect {
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HDMI_PICTURE_ASPECT_NONE,
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HDMI_PICTURE_ASPECT_4_3,
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HDMI_PICTURE_ASPECT_16_9,
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HDMI_PICTURE_ASPECT_64_27,
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HDMI_PICTURE_ASPECT_256_135,
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HDMI_PICTURE_ASPECT_RESERVED,
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};
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enum hdmi_active_aspect {
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HDMI_ACTIVE_ASPECT_16_9_TOP = 2,
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HDMI_ACTIVE_ASPECT_14_9_TOP = 3,
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HDMI_ACTIVE_ASPECT_16_9_CENTER = 4,
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HDMI_ACTIVE_ASPECT_PICTURE = 8,
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HDMI_ACTIVE_ASPECT_4_3 = 9,
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HDMI_ACTIVE_ASPECT_16_9 = 10,
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HDMI_ACTIVE_ASPECT_14_9 = 11,
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HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13,
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HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14,
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HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15,
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};
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enum hdmi_extended_colorimetry {
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HDMI_EXTENDED_COLORIMETRY_XV_YCC_601,
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HDMI_EXTENDED_COLORIMETRY_XV_YCC_709,
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HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
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HDMI_EXTENDED_COLORIMETRY_OPYCC_601,
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HDMI_EXTENDED_COLORIMETRY_OPRGB,
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/* The following EC values are only defined in CEA-861-F. */
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HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM,
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HDMI_EXTENDED_COLORIMETRY_BT2020,
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HDMI_EXTENDED_COLORIMETRY_RESERVED,
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};
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enum hdmi_quantization_range {
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HDMI_QUANTIZATION_RANGE_DEFAULT,
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HDMI_QUANTIZATION_RANGE_LIMITED,
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HDMI_QUANTIZATION_RANGE_FULL,
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HDMI_QUANTIZATION_RANGE_RESERVED,
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};
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/* non-uniform picture scaling */
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enum hdmi_nups {
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HDMI_NUPS_UNKNOWN,
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HDMI_NUPS_HORIZONTAL,
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HDMI_NUPS_VERTICAL,
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HDMI_NUPS_BOTH,
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};
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enum hdmi_ycc_quantization_range {
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HDMI_YCC_QUANTIZATION_RANGE_LIMITED,
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HDMI_YCC_QUANTIZATION_RANGE_FULL,
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};
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enum hdmi_content_type {
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HDMI_CONTENT_TYPE_GRAPHICS,
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HDMI_CONTENT_TYPE_PHOTO,
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HDMI_CONTENT_TYPE_CINEMA,
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HDMI_CONTENT_TYPE_GAME,
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};
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enum hdmi_metadata_type {
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HDMI_STATIC_METADATA_TYPE1 = 0,
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};
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enum hdmi_eotf {
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HDMI_EOTF_TRADITIONAL_GAMMA_SDR,
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HDMI_EOTF_TRADITIONAL_GAMMA_HDR,
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HDMI_EOTF_SMPTE_ST2084,
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HDMI_EOTF_BT_2100_HLG,
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};
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struct hdmi_avi_infoframe {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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bool itc;
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unsigned char pixel_repeat;
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enum hdmi_colorspace colorspace;
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enum hdmi_scan_mode scan_mode;
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enum hdmi_colorimetry colorimetry;
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enum hdmi_picture_aspect picture_aspect;
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enum hdmi_active_aspect active_aspect;
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enum hdmi_extended_colorimetry extended_colorimetry;
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enum hdmi_quantization_range quantization_range;
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enum hdmi_nups nups;
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unsigned char video_code;
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enum hdmi_ycc_quantization_range ycc_quantization_range;
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enum hdmi_content_type content_type;
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unsigned short top_bar;
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unsigned short bottom_bar;
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unsigned short left_bar;
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unsigned short right_bar;
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};
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/* DRM Infoframe as per CTA 861.G spec */
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struct hdmi_drm_infoframe {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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enum hdmi_eotf eotf;
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enum hdmi_metadata_type metadata_type;
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struct {
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u16 x, y;
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} display_primaries[3];
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struct {
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u16 x, y;
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} white_point;
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u16 max_display_mastering_luminance;
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u16 min_display_mastering_luminance;
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u16 max_cll;
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u16 max_fall;
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};
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void hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
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ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
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size_t size);
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ssize_t hdmi_avi_infoframe_pack_only(const struct hdmi_avi_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_avi_infoframe_check(struct hdmi_avi_infoframe *frame);
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int hdmi_drm_infoframe_init(struct hdmi_drm_infoframe *frame);
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ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, void *buffer,
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size_t size);
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ssize_t hdmi_drm_infoframe_pack_only(const struct hdmi_drm_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_drm_infoframe_check(struct hdmi_drm_infoframe *frame);
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int hdmi_drm_infoframe_unpack_only(struct hdmi_drm_infoframe *frame,
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const void *buffer, size_t size);
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enum hdmi_spd_sdi {
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HDMI_SPD_SDI_UNKNOWN,
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HDMI_SPD_SDI_DSTB,
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HDMI_SPD_SDI_DVDP,
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HDMI_SPD_SDI_DVHS,
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HDMI_SPD_SDI_HDDVR,
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HDMI_SPD_SDI_DVC,
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HDMI_SPD_SDI_DSC,
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HDMI_SPD_SDI_VCD,
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HDMI_SPD_SDI_GAME,
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HDMI_SPD_SDI_PC,
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HDMI_SPD_SDI_BD,
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HDMI_SPD_SDI_SACD,
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HDMI_SPD_SDI_HDDVD,
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HDMI_SPD_SDI_PMP,
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};
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struct hdmi_spd_infoframe {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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char vendor[8];
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char product[16];
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enum hdmi_spd_sdi sdi;
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};
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int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
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const char *vendor, const char *product);
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ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
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size_t size);
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ssize_t hdmi_spd_infoframe_pack_only(const struct hdmi_spd_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_spd_infoframe_check(struct hdmi_spd_infoframe *frame);
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enum hdmi_audio_coding_type {
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HDMI_AUDIO_CODING_TYPE_STREAM,
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HDMI_AUDIO_CODING_TYPE_PCM,
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HDMI_AUDIO_CODING_TYPE_AC3,
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HDMI_AUDIO_CODING_TYPE_MPEG1,
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HDMI_AUDIO_CODING_TYPE_MP3,
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HDMI_AUDIO_CODING_TYPE_MPEG2,
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HDMI_AUDIO_CODING_TYPE_AAC_LC,
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HDMI_AUDIO_CODING_TYPE_DTS,
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HDMI_AUDIO_CODING_TYPE_ATRAC,
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HDMI_AUDIO_CODING_TYPE_DSD,
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HDMI_AUDIO_CODING_TYPE_EAC3,
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HDMI_AUDIO_CODING_TYPE_DTS_HD,
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HDMI_AUDIO_CODING_TYPE_MLP,
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HDMI_AUDIO_CODING_TYPE_DST,
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HDMI_AUDIO_CODING_TYPE_WMA_PRO,
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HDMI_AUDIO_CODING_TYPE_CXT,
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};
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enum hdmi_audio_sample_size {
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HDMI_AUDIO_SAMPLE_SIZE_STREAM,
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HDMI_AUDIO_SAMPLE_SIZE_16,
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HDMI_AUDIO_SAMPLE_SIZE_20,
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HDMI_AUDIO_SAMPLE_SIZE_24,
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};
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enum hdmi_audio_sample_frequency {
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HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM,
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HDMI_AUDIO_SAMPLE_FREQUENCY_32000,
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HDMI_AUDIO_SAMPLE_FREQUENCY_44100,
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HDMI_AUDIO_SAMPLE_FREQUENCY_48000,
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HDMI_AUDIO_SAMPLE_FREQUENCY_88200,
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HDMI_AUDIO_SAMPLE_FREQUENCY_96000,
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HDMI_AUDIO_SAMPLE_FREQUENCY_176400,
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HDMI_AUDIO_SAMPLE_FREQUENCY_192000,
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};
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enum hdmi_audio_coding_type_ext {
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/* Refer to Audio Coding Type (CT) field in Data Byte 1 */
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HDMI_AUDIO_CODING_TYPE_EXT_CT,
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/*
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* The next three CXT values are defined in CEA-861-E only.
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* They do not exist in older versions, and in CEA-861-F they are
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* defined as 'Not in use'.
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*/
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HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
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HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
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HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
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/* The following CXT values are only defined in CEA-861-F. */
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HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC,
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HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2,
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HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC,
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HDMI_AUDIO_CODING_TYPE_EXT_DRA,
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HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND,
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HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND = 10,
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};
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struct hdmi_audio_infoframe {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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unsigned char channels;
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enum hdmi_audio_coding_type coding_type;
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enum hdmi_audio_sample_size sample_size;
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enum hdmi_audio_sample_frequency sample_frequency;
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enum hdmi_audio_coding_type_ext coding_type_ext;
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unsigned char channel_allocation;
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unsigned char level_shift_value;
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bool downmix_inhibit;
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};
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int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame);
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ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
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void *buffer, size_t size);
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ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_audio_infoframe_check(const struct hdmi_audio_infoframe *frame);
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struct dp_sdp;
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ssize_t
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hdmi_audio_infoframe_pack_for_dp(const struct hdmi_audio_infoframe *frame,
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struct dp_sdp *sdp, u8 dp_version);
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enum hdmi_3d_structure {
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HDMI_3D_STRUCTURE_INVALID = -1,
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HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
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HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
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HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
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HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
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HDMI_3D_STRUCTURE_L_DEPTH,
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HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
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HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
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HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
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};
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struct hdmi_vendor_infoframe {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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unsigned int oui;
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u8 vic;
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enum hdmi_3d_structure s3d_struct;
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unsigned int s3d_ext_data;
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};
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/* HDR Metadata as per 861.G spec */
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struct hdr_static_metadata {
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__u8 eotf;
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__u8 metadata_type;
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__u16 max_cll;
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__u16 max_fall;
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__u16 min_cll;
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};
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/**
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* struct hdr_sink_metadata - HDR sink metadata
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*
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* Metadata Information read from Sink's EDID
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*/
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struct hdr_sink_metadata {
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/**
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* @metadata_type: Static_Metadata_Descriptor_ID.
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*/
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__u32 metadata_type;
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/**
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* @hdmi_type1: HDR Metadata Infoframe.
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*/
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union {
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struct hdr_static_metadata hdmi_type1;
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};
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};
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int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
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ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
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void *buffer, size_t size);
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ssize_t hdmi_vendor_infoframe_pack_only(const struct hdmi_vendor_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_vendor_infoframe_check(struct hdmi_vendor_infoframe *frame);
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union hdmi_vendor_any_infoframe {
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struct {
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enum hdmi_infoframe_type type;
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unsigned char version;
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unsigned char length;
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unsigned int oui;
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} any;
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struct hdmi_vendor_infoframe hdmi;
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};
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/**
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* union hdmi_infoframe - overall union of all abstract infoframe representations
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* @any: generic infoframe
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* @avi: avi infoframe
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* @spd: spd infoframe
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* @vendor: union of all vendor infoframes
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* @audio: audio infoframe
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* @drm: Dynamic Range and Mastering infoframe
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*
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* This is used by the generic pack function. This works since all infoframes
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* have the same header which also indicates which type of infoframe should be
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* packed.
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*/
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union hdmi_infoframe {
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struct hdmi_any_infoframe any;
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struct hdmi_avi_infoframe avi;
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struct hdmi_spd_infoframe spd;
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union hdmi_vendor_any_infoframe vendor;
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struct hdmi_audio_infoframe audio;
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struct hdmi_drm_infoframe drm;
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};
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ssize_t hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer,
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size_t size);
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ssize_t hdmi_infoframe_pack_only(const union hdmi_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_infoframe_check(union hdmi_infoframe *frame);
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int hdmi_infoframe_unpack(union hdmi_infoframe *frame,
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const void *buffer, size_t size);
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void hdmi_infoframe_log(const char *level, struct device *dev,
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const union hdmi_infoframe *frame);
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#endif /* _DRM_HDMI_H */
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