blob: 0d7fbe6edce44e70e3716f988052bb4d93482eed [file] [log] [blame]
/*
* Copyright (c) 2014, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EDID_H
#define EDID_H
/* HDMI EDID Information */
#define BIT(nr) (1UL << (nr))
#define MAX_EDID_BLOCKS 10
#define MAX_SHORT_AUDIO_DESC_CNT 30
#define MIN_AUDIO_DESC_LENGTH 3
#define MIN_SPKR_ALLOCATION_DATA_LENGTH 3
#define MAX_CHANNELS_SUPPORTED 8
#define MAX_DISPLAY_DEVICES 3
#define MAX_FRAME_BUFFER_NAME_SIZE 80
#define MAX_CHAR_PER_INT 13
#define PCM_CHANNEL_FL 1 /* Front left channel. */
#define PCM_CHANNEL_FR 2 /* Front right channel. */
#define PCM_CHANNEL_FC 3 /* Front center channel. */
#define PCM_CHANNEL_LS 4 /* Left surround channel. */
#define PCM_CHANNEL_RS 5 /* Right surround channel. */
#define PCM_CHANNEL_LFE 6 /* Low frequency effect channel. */
#define PCM_CHANNEL_CS 7 /* Center surround channel; Rear center channel. */
#define PCM_CHANNEL_LB 8 /* Left back channel; Rear left channel. */
#define PCM_CHANNEL_RB 9 /* Right back channel; Rear right channel. */
#define PCM_CHANNEL_TS 10 /* Top surround channel. */
#define PCM_CHANNEL_CVH 11 /* Center vertical height channel. */
#define PCM_CHANNEL_MS 12 /* Mono surround channel. */
#define PCM_CHANNEL_FLC 13 /* Front left of center. */
#define PCM_CHANNEL_FRC 14 /* Front right of center. */
#define PCM_CHANNEL_RLC 15 /* Rear left of center. */
#define PCM_CHANNEL_RRC 16 /* Rear right of center. */
#define MAX_HDMI_CHANNEL_CNT 8
typedef enum edid_audio_format_id {
LPCM = 1,
AC3,
MPEG1,
MP3,
MPEG2_MULTI_CHANNEL,
AAC,
DTS,
ATRAC,
SACD,
DOLBY_DIGITAL_PLUS,
DTS_HD,
MAT,
DST,
WMA_PRO
} edid_audio_format_id;
typedef struct edid_audio_block_info {
edid_audio_format_id format_id;
int sampling_freq;
int bits_per_sample;
int channels;
} edid_audio_block_info;
typedef struct edid_audio_info {
int audio_blocks;
unsigned char speaker_allocation[MIN_SPKR_ALLOCATION_DATA_LENGTH];
edid_audio_block_info audio_blocks_array[MAX_EDID_BLOCKS];
char channel_map[MAX_CHANNELS_SUPPORTED];
int channel_allocation;
} edid_audio_info;
#ifndef HDMI_EDID
#define edid_get_sink_caps(info, edid_data) (0)
#else
bool edid_get_sink_caps(edid_audio_info* info, char *edid_data);
#endif
#endif /* EDID_H */