The LPE Audio mode on BYT/CHT supports up to 3 devices, and also supports IEC61937 passthrough. Add missing alsa-lib configurations so that apps can use the usual -D'hdmi:CARD=X,DEV=Y,AES0=0x[4|6]' syntax, e.g.

aplay -D'hdmi:CARD=0,DEV=2,AES0=0x6' -c2 -r48000 -fs16_le ac3_surround_test.spdif

Tested on Zotac PI330 with Onkyo receiver

Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- src/conf/cards/HdmiLpeAudio.conf | 77 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+)

diff --git a/src/conf/cards/HdmiLpeAudio.conf b/src/conf/cards/HdmiLpeAudio.conf index dae71fa..9fa30da 100644 --- a/src/conf/cards/HdmiLpeAudio.conf +++ b/src/conf/cards/HdmiLpeAudio.conf @@ -56,6 +56,83 @@ HdmiLpeAudio.pcm.hdmi.0 { { interface PCM name "IEC958 Playback Default" + device 0 + lock true + preserve true + value [ $AES0 $AES1 $AES2 $AES3 ] + } + ] + } +} + +HdmiLpeAudio.pcm.hdmi.1 { + @args [ CARD AES0 AES1 AES2 AES3 ] + @args.CARD { + type string + } + @args.AES0 { + type integer + } + @args.AES1 { + type integer + } + @args.AES2 { + type integer + } + @args.AES3 { + type integer + } + type hooks + slave.pcm { + type hw + card $CARD + device 1 + } + hooks.0 { + type ctl_elems + hook_args [ + { + interface PCM + name "IEC958 Playback Default" + device 1 + lock true + preserve true + value [ $AES0 $AES1 $AES2 $AES3 ] + } + ] + } +} + +HdmiLpeAudio.pcm.hdmi.2 { + @args [ CARD AES0 AES1 AES2 AES3 ] + @args.CARD { + type string + } + @args.AES0 { + type integer + } + @args.AES1 { + type integer + } + @args.AES2 { + type integer + } + @args.AES3 { + type integer + } + type hooks + slave.pcm { + type hw + card $CARD + device 2 + } + hooks.0 { + type ctl_elems + hook_args [ + { + interface PCM + name "IEC958 Playback Default" + device 2 lock true preserve true value [ $AES0 $AES1 $AES2 $AES3 ]