alsasound.init

   1 #!/bin/sh
   2 #
   3 # alsasound     This shell script takes care of starting and stopping \
   4 #               ALSA sound driver.
   5 #
   6 # This script requires /usr/sbin/alsactl program from alsa-utils package.
   7 #
   8 # Copyright (c) by Jaroslav Kysela <perex@jcu.cz>
   9 #
  10 #  This program is free software; you can redistribute it and/or modify
  11 #  it under the terms of the GNU General Public License as published by
  12 #  the Free Software Foundation; either version 2 of the License, or
  13 #  (at your option) any later version.
  14 #
  15 #  This program is distributed in the hope that it will be useful,
  16 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 #  GNU General Public License for more details.
  19 #
  20 #  You should have received a copy of the GNU General Public License
  21 #  along with this program; if not, write to the Free Software
  22 #  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 #
  24 #
  25 # For PLD Linux Distribution:
  26 # chkconfig:    2345 87 14
  27 # description:  ALSA driver
  28 #
  29
  30 # Source function library.
  31 . /etc/rc.d/init.d/functions
  32
  33 driver_start()
  34 {
  35   #
  36   # insert all sound modules
  37   #
  38   modprobe -c | awk '$1 == "alias" && $3 != "off" && ($2 ~ /^snd-card-[0-9]$/) {print $3}' | \
  39     while read line; do \
  40       msg_starting "sound driver: $line"
  41       busy
  42       /sbin/modprobe $line
  43       ok
  44     done
  45   modprobe -c | awk '$1 == "alias" && $3 != "off" && ($2 ~ /^sound-service-[0-9]-[0-9]+$/) {print $3}' | \
  46     while read line; do \
  47       msg_starting "sound driver: $line"
  48       busy
  49       /sbin/modprobe $line
  50       ok
  51     done
  52
  53   # restore driver settings
  54   #
  55   if [ -x /usr/sbin/alsactl ]; then
  56     if [ -f /etc/asound.state ]; then
  57       if [ "$(kernelver)" -lt "002006012" ]; then
  58         for i in 1 2 3 4; do
  59           [ -a /dev/snd/controlC0 ] && break
  60           sleep 1
  61         done
  62       fi
  63       /usr/sbin/alsactl restore
  64     fi
  65   else
  66     show "ERROR: alsactl not found"; fail
  67   fi
  68 }
  69
  70 detect_stop()
  71 {
  72   #
  73   # remove all sound modules
  74   #
  75   /sbin/lsmod | awk '/^(snd|ac97_bus)/ { print $1 }' | while read module; do \
  76      /sbin/rmmod $module
  77   done
  78 }
  79
  80 driver_stop()
  81 {
  82   #
  83   # store driver settings
  84   #
  85   if [ -x /usr/sbin/alsactl ]; then
  86     /usr/sbin/alsactl store
  87   else
  88     show '!!!alsactl not found!!!'; fail
  89   fi
  90   #
  91   # remove all sound modules
  92   #
  93   detect_stop
  94 }
  95
  96 detect_start()
  97 {
  98   #
  99   # run only detect module
 100   #
 101   /sbin/modprobe snd-detect
 102 }
 103
 104 # Start driver.
 105 start() {
 106         if [ ! -d /proc/asound ]; then
 107                 driver_start
 108                 if [ -d /proc/asound ]; then
 109                         touch /var/lock/subsys/alsasound
 110                 else
 111                         exit 1
 112                 fi
 113         else
 114                 if [ -f /proc/asound/detect ]; then
 115                         show "Shutting down sound detect module"
 116                         detect_stop
 117                         ok
 118                         driver_start
 119                         if [ -d /proc/asound ]; then
 120                                 touch /var/lock/subsys/alsasound
 121                         else
 122                                 exit 1
 123                         fi
 124                 else
 125                         msg_already_running "ALSA driver"
 126                 fi
 127         fi
 128 }
 129
 130 # Stop daemons.
 131 stop() {
 132         if [ -d /proc/asound ]; then
 133                 show "Shutting down sound driver"
 134                 busy
 135                 if [ -f /proc/asound/detect ]; then
 136                         detect_stop
 137                 else
 138                         driver_stop
 139                 fi
 140                 (rmmod isapnp; rmmod soundcore) 2> /dev/null
 141                 if [ -d /var/lock/subsys ]; then
 142                         rm -f /var/lock/subsys/alsasound
 143                 fi
 144                 ok
 145         else
 146                 msg_not_running "ALSA driver"
 147         fi
 148 }
 149
 150 condrestart() {
 151         if [ -f /var/lock/subsys/alsasound ]; then
 152                 stop
 153                 start
 154         else
 155                 msg_not_running "ALSA driver"
 156                 RETVAL=$1
 157         fi
 158 }
 159
 160
 161 # See how we were called.
 162 case "$1" in
 163   start)
 164         start
 165         ;;
 166   stop)
 167         stop
 168         ;;
 169   restart)
 170         stop
 171         start
 172         ;;
 173   try-restart)
 174         condrestart 0
 175         ;;
 176   force-reload)
 177         condrestart 7
 178         ;;
 179   status)
 180         # TODO
 181         ;;
 182   *)
 183         msg_usage "$0 {start|stop|restart|try-restart|force-reload|status}"
 184         exit 3
 185 esac
 186
 187 exit 0