#!/bin/bash
#
# sound - sound configuration plugin for postplug
# Copyright (c) 2005-2007 by Davide Madrisan <davide.madrisan@gmail.com>
# Copyright (c) 2005-2011 by Silvan Calarco <silvan.calarco@mambasoft.it>

# Note: Some code has been stolen from /usr/sbin/alsaconf version 1.0.13

if [ $UID != 0 ]; then
   echo "$0: must be superuser." >&2
   exit 1
fi

me="sound"

[ -r /etc/sysconfig/machine ] && . /etc/sysconfig/machine

. /etc/postplug/postplug.defs

[ -r /etc/sysconfig/postplug ] && . /etc/sysconfig/postplug

SYSCONFIG_SOUNDCARDS=/etc/sysconfig/soundcards

# set default mixer volumes
function set_mixers() {
   [ -x /usr/bin/amixer ] || return

    /usr/bin/amixer -s -q <<_EOF
set Master 90% unmute
set 'Master Mono' 75% unmute
set Front 90% unmute
set Speaker 90% unmute
set PCM 90% unmute
mixer Synth 90% unmute
mixer CD 90% unmute
# mute mic
set Mic 0% mute
# ESS 1969 chipset has 2 PCM channels
set PCM,1 90% unmute
# Trident/YMFPCI/emu10k1
set Wave 100% unmute
set Music 100% unmute
set AC97 100% unmute
# CS4237B chipset:
set 'Master Digital' 75% unmute
# Envy24 chips with analog outs
set DAC 90% unmute
set DAC,0 90% unmute
set DAC,1 90% unmute
# some notebooks use headphone instead of master
set Headphone 75% unmute
set Playback 100% unmute
# turn off digital switches
set "SB Live Analog/Digital Output Jack" off
set "Audigy Analog/Digital Output Jack" off
_EOF
}

SOUND_DEV="`lspci -n | grep " 04[0-9][0-9]: "`"

if [ "$SOUND_FORCE_RESCAN" != "on" -a "$SOUND_FORCE_RESCAN" != "1" ]; then
   if [ -e $postpluglibdir/sound.cache ]; then
      SOUND_DEV_CACHED="`cat $postpluglibdir/sound.cache`"
      [ "$SOUND_DEV" = "$SOUND_DEV_CACHED" ] && exit 0
      logmsg "$me" "warning: audio device appears to have changed; re-probing"
      mv $SYSCONFIG_SOUNDCARDS $SYSCONFIG_SOUNDCARDS.postplug.save
   fi
fi

echo "$SOUND_DEV" > $postpluglibdir/sound.cache
for c in /proc/asound/card[0-9]*; do
   id=`cat $c/id`
   codec=`grep Codec: $c/codec* | head -n1`
   logmsg "$me" $"setting volumes for $id sound card ($codec)"
   index=${d1/*card}
   set_mixers $index
done

if [ -x /usr/sbin/alsactl ]; then
   logmsg "$me" $"saving the mixer setup (/var/lib/sound/asound.state)"
   /usr/sbin/alsactl store >/dev/null
fi

echo "$SOUND_DEV" > $postpluglibdir/sound.cache

exit 0