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From d78b7e2b964c9713c2e9889f4ec85922528ba971 Mon Sep 17 00:00:00 2001
From: Shengjiu Wang <shengjiu.wang@nxp.com>
Date: Wed, 31 Jan 2018 15:06:53 +0800
Subject: [PATCH] add ak4458 conf for multichannel support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
one limitation is that ALSA and pulseaudio only support
maximum 8 channels, but ak4458 may support 16 channels
Upstream-Status: Inappropriate [i.MX specific]
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
src/conf/cards/AK4458.conf | 74 +++++++++++++++++++++++++++++++++++++
src/conf/cards/Makefile.am | 3 +-
src/conf/cards/aliases.conf | 1 +
3 files changed, 77 insertions(+), 1 deletion(-)
create mode 100644 src/conf/cards/AK4458.conf
diff --git a/src/conf/cards/AK4458.conf b/src/conf/cards/AK4458.conf
new file mode 100644
index 0000000..3b5b195
--- /dev/null
+++ b/src/conf/cards/AK4458.conf
@@ -0,0 +1,74 @@
+#
+# Configuration for the AK4458 chip
+#
+
+# default with dmix & dsnoop
+AK4458.pcm.default {
+ @args [ CARD ]
+ @args.CARD {
+ type string
+ }
+ type asym
+ playback.pcm {
+ type plug
+ slave.pcm {
+ @func concat
+ strings [ "dmix:" $CARD ",FORMAT=S32_LE" ]
+ }
+ }
+ capture.pcm {
+ type plug
+ slave.pcm {
+ @func concat
+ strings [ "dsnoop:" $CARD ",FORMAT=S32_LE" ]
+ }
+ }
+}
+
+<confdir:pcm/surround40.conf>
+
+AK4458.pcm.surround40.0 {
+ @args [ CARD ]
+ @args.CARD {
+ type string
+ }
+ type plug
+ slave.pcm {
+ type hw
+ card $CARD
+ }
+ slave.channels 4
+}
+
+
+<confdir:pcm/surround41.conf>
+<confdir:pcm/surround50.conf>
+<confdir:pcm/surround51.conf>
+
+AK4458.pcm.surround51.0 {
+ @args [ CARD ]
+ @args.CARD {
+ type string
+ }
+ type plug
+ slave.pcm {
+ type hw
+ card $CARD
+ }
+ slave.channels 6
+}
+
+<confdir:pcm/surround71.conf>
+
+AK4458.pcm.surround71.0 {
+ @args [ CARD ]
+ @args.CARD {
+ type string
+ }
+ type plug
+ slave.pcm {
+ type hw
+ card $CARD
+ }
+ slave.channels 8
+}
diff --git a/src/conf/cards/Makefile.am b/src/conf/cards/Makefile.am
index fbf0697..34fa5a3 100644
--- a/src/conf/cards/Makefile.am
+++ b/src/conf/cards/Makefile.am
@@ -60,7 +60,8 @@ cfg_files = aliases.conf \
VXPocket.conf \
VXPocket440.conf \
CS42888.conf \
- IMX-HDMI.conf
+ IMX-HDMI.conf \
+ AK4458.conf
if BUILD_ALISP
cfg_files += aliases.alisp
diff --git a/src/conf/cards/aliases.conf b/src/conf/cards/aliases.conf
index a9e6d76..2f0a22a 100644
--- a/src/conf/cards/aliases.conf
+++ b/src/conf/cards/aliases.conf
@@ -59,6 +59,7 @@ pistachio cards.pistachio-card
VC4-HDMI cards.vc4-hdmi
imx-cs42888 cards.CS42888
imx-hdmi-soc cards.IMX-HDMI
+ak4458-audio cards.AK4458
<confdir:ctl/default.conf>
<confdir:pcm/default.conf>
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