#!/bin/sh

#

# alsasound     This shell script takes care of starting and stopping

#               the ALSA sound driver.

#

# This script requires /usr/sbin/alsactl program from alsa-utils package.

#

# Copyright (c) by Jaroslav Kysela <perex@suse.cz> 

#

#

#  This program 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.

#

#  This program 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 this program; if not, write to the Free Software

#  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#

#

# For RedHat 5.0+:

# chkconfig: 2345 87 14

# description: ALSA driver

#

# modified to visually fit into SuSE 6.0+ by Philipp Thomas <pthomas@suse.de>

# further improvements by Bernd Kaindl, Olaf Hering and Takashi Iwai.

# 

### BEGIN INIT INFO

# Provides:       alsasound

# Required-Start: $local_fs

# Should-Start: $remote_fs resmgr

# Required-Stop: $local_fs

# Should-Stop: $remote_fs resmgr

# Default-Start:  2 3 5

# Default-Stop:

# Short-Description: Set up ALSA sound system

# Description:    Loading ALSA drivers and store/restore the current setting

### END INIT INFO

​

. /etc/rc.status

. /etc/sysconfig/sound

​

# Shell functions sourced from /etc/rc.status:

#      rc_check         check and set local and overall rc status

#      rc_status        check and set local and overall rc status

#      rc_status -v     ditto but be verbose in local rc status

#      rc_status -v -r  ditto and clear the local rc status

#      rc_failed        set local and overall rc status to failed

#      rc_reset         clear local rc status (overall remains)

#      rc_exit          exit appropriate to overall rc status

​

# First reset status of this service

rc_reset

​

alsactl=/usr/sbin/alsactl

asoundcfg=/var/lib/alsa/asound.state

aconnect=/usr/bin/aconnect

​

get_drivers() {

  /sbin/modprobe -c | \

    grep -E "^[[:space:]]*alias[[:space:]]+snd-card-[[:digit:]]" | sort -u | \

    while read a b card; do

    echo $card

    done

}

​

#

# insert all sound modules

#

load_modules() {

  module_loaded=0

  c=""

  drivers=`get_drivers`

  for i in $drivers; do

    if [ $i != off ]; then

      if [ x$c = x ]; then

        echo -n ": "

    c=1

      fi

      echo -n " ${i##snd-}"

      /sbin/modprobe $i && module_loaded=1

    fi

  done

  rc_status -v -r

  test $module_loaded -eq 0 && return 1

  return 0

}

​

#

# rest of start action

#

​

# manual load and force to store the status

start_all() {

    echo -n "Starting sound driver"

    load_modules

    rc_status -r

}

​

do_kill() {

  fuser $* /dev/admmidi* /dev/adsp* /dev/amidi* /dev/audio* /dev/dmfm* \

     /dev/dmmidi* /dev/dsp* /dev/dspW* /dev/midi* /dev/mixer* /dev/music \

     /dev/patmgr* /dev/sequencer* /dev/sndstat >/dev/null 2>&1

  if [ -d /dev/snd ]; then

    fuser $* /dev/snd/* >/dev/null 2>&1

  fi

}

​

terminate() {

  #

  # Kill processes holding open sound devices

  #

  do_kill -TERM -k

  sleep 1

  do_kill -k

​

  #

  # remove all sequencer connections if any

  #

  if [ -f /proc/asound/seq/clients -a -x $aconnect ]; then

    $aconnect --removeall

  fi

}

​

# mute master to avoid clicks at unload/shutdown

mute_system() {

  /usr/bin/amixer set Master mute >/dev/null 2>&1

}

​

#

# remove all sound modules

#

unload_modules() {

  mute_system

  mod=$(grep -m1 -E '^(snd[^ ]*|ac97_bus) [0-9]+ 0' /proc/modules)

  while [ -n "$mod" ]; do

      mod=${mod%% *}

      /sbin/modprobe -r $mod

      mod=$(grep -m1 -E '^(snd[^ ]*|ac97_bus) [0-9]+ 0' /proc/modules)

  done

  rc_failed 0

}

​

unload_all() {

    echo -n "Shutting down sound driver"

    terminate

    unload_modules

    rc_status -v

}

​

stop_all() {

    if [ -d /proc/asound ]; then

    $alsactl -g -f $asoundcfg store

        unload_all

    fi

}

​

# See how we were called.

case "$1" in

  start)

    if test "$PREVLEVEL" = "N" -a -d /proc/asound ; then

        # re-run alsactl when /var is a seprate partition (bnc#700781)

        case $asoundcfg in

        /var/*)

            grep -q " /var " /proc/mounts && \

            $alsactl -F -f $asoundcfg restore >/dev/null 2>&1

            ;;

        esac

    else

        start_all

    fi

        ;;

  stop)

    if [ "$RUNLEVEL" = "6" -o "$RUNLEVEL" = "0" ]; then

        if [ -d /proc/asound ]; then

        $alsactl -f $asoundcfg store

        # kill pulseaudio before muting the system (bnc#499445)

        if killall -q -TERM pulseaudio; then

            usleep 200

        fi

        mute_system

        fi

    else

        stop_all

    fi

        ;;

  unload)

    test -d /proc/asound && unload_all

    ;;

  reload|restart)

    stop_all

    start_all

    ;;

  status)

        if [ -d /proc/asound ]; then

          echo -n "ALSA sound driver loaded."

          rc_status -v

        else

          echo -n "ALSA sound driver not loaded."

      rc_status -u

        fi

        ;;

  *)

    echo "Usage: $0 {start|stop|restart|reload|unload|status}"

        exit 1

    ;;

esac

​

rc_exit

​