137 lines
3.1 KiB
Diff
137 lines
3.1 KiB
Diff
From patchwork Thu Mar 2 10:12:06 2017
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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Subject: conf/cards: add VC4-HDMI card
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From: Boris BREZILLON <boris.brezillon@free-electrons.com>
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X-Patchwork-Id: 9599837
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Message-Id: <1488449526-16850-1-git-send-email-boris.brezillon@free-electrons.com>
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To: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>,
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Lars-Peter Clausen <lars@metafoo.de>, alsa-devel@alsa-project.org
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Cc: Eric Anholt <eric@anholt.net>,
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Boris Brezillon <boris.brezillon@free-electrons.com>
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Date: Thu, 2 Mar 2017 11:12:06 +0100
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Add a conf file for the VC4-HDMI sound card.
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Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
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---
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Hi,
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This patch is adding a card config file for the audio sound card whose
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driver has been submitted here [1] (not accepted yet).
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Since I am a total newbie to the alsa world, I'd like to get some
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feedback on this patch.
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Also, the card only supports 2 to 8 channels, and I wonder if we should
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add a plug element to support mono streams, and where this element
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should be added (after or before the iec958 element).
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Regards,
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Boris
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[1]https://www.spinics.net/lists/arm-kernel/msg565182.html
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src/conf/cards/Makefile.am | 1 +
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src/conf/cards/aliases.conf | 1 +
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src/conf/cards/vc4-hdmi.conf | 64 ++++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 66 insertions(+)
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create mode 100644 src/conf/cards/vc4-hdmi.conf
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diff --git a/src/conf/cards/Makefile.am b/src/conf/cards/Makefile.am
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index e8b530e80a8f..00999f0186d6 100644
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--- a/src/conf/cards/Makefile.am
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+++ b/src/conf/cards/Makefile.am
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@@ -51,6 +51,7 @@ cfg_files = aliases.conf \
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TRID4DWAVENX.conf \
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USB-Audio.conf \
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YMF744.conf \
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+ vc4-hdmi.conf \
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VIA686A.conf \
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VIA8233.conf \
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VIA8233A.conf \
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diff --git a/src/conf/cards/aliases.conf b/src/conf/cards/aliases.conf
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index 60f9d26974fd..18a920f41e46 100644
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--- a/src/conf/cards/aliases.conf
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+++ b/src/conf/cards/aliases.conf
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@@ -55,6 +55,7 @@
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AV200 cards.CMI8788
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CMI8786 cards.CMI8788
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CMI8787 cards.CMI8788
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+VC4-HDMI cards.vc4-hdmi
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<confdir:pcm/default.conf>
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<confdir:pcm/dmix.conf>
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diff --git a/src/conf/cards/vc4-hdmi.conf b/src/conf/cards/vc4-hdmi.conf
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new file mode 100644
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index 000000000000..027804a145d1
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--- /dev/null
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+++ b/src/conf/cards/vc4-hdmi.conf
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@@ -0,0 +1,64 @@
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+#
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+# Configuration for the VC4-HDMI sound card using software IEC958
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+# subframe conversion
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+#
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+
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+<confdir:pcm/front.conf>
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+
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+vc4-hdmi.pcm.front.0 {
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+ @args [ CARD ]
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+ @args.CARD {
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+ type string
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+ }
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+ type hw
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+ card $CARD
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+}
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+
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+# default with dmix
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+vc4-hdmi.pcm.default {
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+ @args [ CARD ]
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+ @args.CARD {
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+ type string
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+ }
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+ type asym
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+ playback.pcm {
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+ type plug
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+ slave.pcm {
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+ @func concat
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+ strings [ "dmix:" $CARD ]
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+ }
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+ }
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+}
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+
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+<confdir:pcm/iec958.conf>
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+
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+vc4-hdmi.pcm.iec958.0 {
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+ @args [ CARD AES0 AES1 AES2 AES3 ]
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+ @args.CARD {
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+ type string
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+ }
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+ @args.AES0 {
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+ type integer
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+ }
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+ @args.AES1 {
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+ type integer
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+ }
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+ @args.AES2 {
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+ type integer
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+ }
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+ @args.AES3 {
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+ type integer
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+ }
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+ type iec958
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+ slave {
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+ format IEC958_SUBFRAME_LE
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+ pcm {
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+ type plug
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+ slave.pcm {
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+ type hw
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+ card $CARD
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+ }
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+ }
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+ }
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+ status [ $AES0 $AES1 $AES2 $AES3 ]
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+}
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