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@xxxxxxxxxxxxxxx>
---
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 ]
--
2.9.3
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