On Thu, 02 Mar 2017 11:49:33 +0100, Boris Brezillon wrote:
Add a conf file for the VC4-HDMI sound card.
Signed-off-by: Boris Brezillon boris.brezillon@free-electrons.com
Hi,
Sorry for the noise, but I didn't send this patch to the alsa-lib maintainer on my first attempt.
This patch is adding a card config file for the audio sound card whose driver has been submitted here [1] (not accepted yet).
Since I am a total newbie to the alsa world, I'd like to get some feedback on this patch.
Also, the card only supports 2 to 8 channels, and I wonder if we should add a plug element to support mono streams, and where this element should be added (after or before the iec958 element).
Applied, thanks.
Takashi
Regards,
Boris
[1]https://www.spinics.net/lists/arm-kernel/msg565182.html
src/conf/cards/Makefile.am | 1 + src/conf/cards/aliases.conf | 1 + src/conf/cards/vc4-hdmi.conf | 64 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 66 insertions(+) create mode 100644 src/conf/cards/vc4-hdmi.conf
diff --git a/src/conf/cards/Makefile.am b/src/conf/cards/Makefile.am index e8b530e80a8f..00999f0186d6 100644 --- a/src/conf/cards/Makefile.am +++ b/src/conf/cards/Makefile.am @@ -51,6 +51,7 @@ cfg_files = aliases.conf \ TRID4DWAVENX.conf \ USB-Audio.conf \ YMF744.conf \
- vc4-hdmi.conf \ VIA686A.conf \ VIA8233.conf \ VIA8233A.conf \
diff --git a/src/conf/cards/aliases.conf b/src/conf/cards/aliases.conf index 60f9d26974fd..18a920f41e46 100644 --- a/src/conf/cards/aliases.conf +++ b/src/conf/cards/aliases.conf @@ -56,6 +56,7 @@ AV200 cards.CMI8788 CMI8786 cards.CMI8788 CMI8787 cards.CMI8788 pistachio cards.pistachio-card +VC4-HDMI cards.vc4-hdmi
confdir:pcm/default.conf confdir:pcm/dmix.conf diff --git a/src/conf/cards/vc4-hdmi.conf b/src/conf/cards/vc4-hdmi.conf new file mode 100644 index 000000000000..027804a145d1 --- /dev/null +++ b/src/conf/cards/vc4-hdmi.conf @@ -0,0 +1,64 @@ +# +# Configuration for the VC4-HDMI sound card using software IEC958 +# subframe conversion +#
+vc4-hdmi.pcm.front.0 {
- @args [ CARD ]
- @args.CARD {
type string- }
- type hw
- card $CARD
+}
+# default with dmix +vc4-hdmi.pcm.default {
- @args [ CARD ]
- @args.CARD {
type string- }
- type asym
- playback.pcm {
type plugslave.pcm {@func concatstrings [ "dmix:" $CARD ]}- }
+}
+vc4-hdmi.pcm.iec958.0 {
- @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 iec958
- slave {
format IEC958_SUBFRAME_LEpcm {type plugslave.pcm {type hwcard $CARD}}- }
- status [ $AES0 $AES1 $AES2 $AES3 ]
+}
2.7.4