[alsa-devel] [PATCH] pass ELD to HDMI/DP audio driver

[Wu Fengguang]

> This patch is tested OK on G45/HDMI and IbexPeak/HDMI. DisplayPort is
> tested on several IbexPeak and Sandybridge boxes, however not working,
> possibly due to hardware/monitor problems.

FYI, here is an example ELD dump in G45/HDMI.

wfg at slim ~% cat /proc/asound/card0/eld\#1.0
monitor_present         1
eld_valid               1
monitor_name            RX-V1800
connection_type         HDMI
eld_version             [0x2] CEA-861D or below
edid_version            [0x3] CEA-861-B, C or D
manufacture_id          0xa865
product_id              0x3116
port_id                 0x0
support_hdcp            0
support_ai              1
audio_sync_delay        0
speakers                [0x5f] FL/FR LFE FC RL/RR RC RLC/RRC
sad_count               8
sad0_coding_type        [0x1] LPCM
sad0_channels           2
sad0_rates              [0x1ee0] 44100 48000 88200 176400 192000 384000
sad0_bits               [0xe0000] 16 20 24
sad1_coding_type        [0x1] LPCM
sad1_channels           8
sad1_rates              [0x1ee0] 44100 48000 88200 176400 192000 384000
sad1_bits               [0xe0000] 16 20 24
sad2_coding_type        [0x2] AC-3
sad2_channels           6
sad2_rates              [0xe0] 44100 48000 88200
sad2_max_bitrate        640000
sad3_coding_type        [0x7] DTS
sad3_channels           7
sad3_rates              [0x6e0] 44100 48000 88200 176400 192000
sad3_max_bitrate        1536000
sad4_coding_type        [0x9] DSD (One Bit Audio)
sad4_channels           6
sad4_rates              [0x40] 48000
sad5_coding_type        [0xa] E-AC-3/DD+ (Dolby Digital Plus)
sad5_channels           8
sad5_rates              [0xc0] 48000 88200
sad6_coding_type        [0xc] MLP (Dolby TrueHD)
sad6_channels           8
sad6_rates              [0x1480] 88200 192000
sad7_coding_type        [0xb] DTS-HD
sad7_channels           8
sad7_rates              [0x1480] 88200 192000

Thanks,
Fengguang