rpi-cirrus-config: config scripts for Cirrus Logic Audio Card on RPi

packages/audio/rpi-cirrus-config/config/rpi-cirrus-config.sh.sample

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+#!/bin/sh
+#
+# Sample user config script to setup Cirrus Logic Audio Card
+
+# load helper functions and definitions
+. /usr/lib/alsa/rpi-cirrus-functions.sh
+
+# enable output to S/PDIF, line out and headset out
+playback_to_spdif
+playback_to_lineout
+playback_to_headset
+
+# disable noise gate - this can cut off the first few ms of playback
+mixer 'Noise Gate Switch' off
+
+# Uncomment this line to enable output to speakers
+# playback_to_speakers
+
+# example: mix line in and headset in into line out using a high-pass filter
+# - line in gain is set to +8dB
+# - headset in gain is set to +20dB
+# - line in and headset in are mixed together in the filter, each using
+#   a gain of -3dB (volume 29). line in uses input 1, headset in input 2
+# - first input of line out is connected to audio signal from RPi/Kodi,
+#   using a -3dB gain
+# - second input of line out is connected to output of the filter
+#
+# mixer "${line_out} Digital Switch" off	# mute output
+# setup_line_in 8
+# setup_headset_in 20
+# setup_filter "High-Pass" "240,3"
+# set_mixer $filter_signals $line_in_signals 29 1
+# set_mixer $filter_signals $headset_in_signals 29 2
+# set_mixer $line_out_signals $rpi_out_signals 29 1
+# set_mixer $line_out_signals $filter_signals 29 2
+# mixer "${line_out} Digital Switch" on		# unmute output

packages/audio/rpi-cirrus-config/modprobe.d/rpi-cirrus.conf

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+softdep arizona-spi pre: arizona-ldo1

packages/audio/rpi-cirrus-config/package.mk

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+################################################################################
+#      This file is part of LibreELEC - https://libreelec.tv
+#      Copyright (C) 2016-2017 Team LibreELEC
+#
+#  LibreELEC is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  LibreELEC is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with LibreELEC.  If not, see <http://www.gnu.org/licenses/>.
+################################################################################
+
+PKG_NAME="rpi-cirrus-config"
+PKG_VERSION="0.0.1"
+PKG_ARCH="any"
+PKG_LICENSE="GPL"
+PKG_SITE="https://github.com/HiassofT/rpi-cirrus-config"
+PKG_URL="https://github.com/HiassofT/rpi-cirrus-config/archive/$PKG_VERSION.tar.gz"
+PKG_DEPENDS_TARGET="alsa-utils"
+PKG_SECTION="driver"
+PKG_SHORTDESC="Config scripts for the Wolfson/Cirrus Logic audio card"
+PKG_LONGDESC="Config scripts for the Wolfson/Cirrus Logic audio card"
+
+make_target() {
+ : #
+}
+
+makeinstall_target() {
+  mkdir -p $INSTALL/usr/lib/udev
+  install -m 0755 $PKG_DIR/scripts/rpi-cirrus-config $INSTALL/usr/lib/udev/rpi-cirrus-config
+
+  mkdir -p $INSTALL/usr/share/alsa/cards
+  cp alsa/RPiCirrus.conf $INSTALL/usr/share/alsa/cards
+
+  mkdir -p $INSTALL/usr/lib/alsa
+  cp mixer-scripts/rpi-cirrus-functions.sh $INSTALL/usr/lib/alsa
+
+  mkdir -p $INSTALL/usr/config
+  cp -PR $PKG_DIR/config/* $INSTALL/usr/config
+}

packages/audio/rpi-cirrus-config/scripts/rpi-cirrus-config

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+#!/bin/sh
+
+# setup default mixer settings for Cirrus Logic Audio Card
+
+. /etc/profile
+
+if [ -f $HOME/.config/sound.conf ] ; then
+    alsactl restore -f $HOME/.config/sound.conf
+else
+    if [ -r $HOME/.config/rpi-cirrus-config.sh ] ; then
+        progress "Setting up Cirrus Logic Audio Card with user config"
+        sh $HOME/.config/rpi-cirrus-config.sh
+    else
+        progress "Setting up Cirrus Logic Audio Card"
+
+        # load helper functions and definitions
+        . /usr/lib/alsa/rpi-cirrus-functions.sh
+
+        playback_to_spdif
+        playback_to_lineout
+        playback_to_headset
+        mixer 'Noise Gate Switch' off
+    fi
+fi

packages/audio/rpi-cirrus-config/udev.d/90-alsa-restore.rules

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+################################################################################
+#      This file is part of LibreELEC - https://libreelec.tv
+#      Copyright (C) 2016 Team LibreELEC
+#
+#  LibreELEC is free software: you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation, either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  LibreELEC is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with LibreELEC.  If not, see <http://www.gnu.org/licenses/>.
+################################################################################
+
+# When a sound device is detected, restore the volume settings
+SUBSYSTEM=="sound", KERNEL=="controlC*", NAME="snd/%k", ACTION=="add", GOTO="alsa_restore_go"
+GOTO="alsa_restore_end"
+
+LABEL="alsa_restore_go"
+
+# Separate config-script for RPi-Cirrus card
+DRIVERS=="snd-rpi-cirrus", RUN+="rpi-cirrus-config", GOTO="alsa_restore_end"
+
+# Default config-script for all other cards
+RUN+="soundconfig %k"
+
+LABEL="alsa_restore_end"
+