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 if [ $(kernelverser) = "002006" ]; then
  34         MODULES_CONF=/etc/modprobe.conf
  35 elif [ -r /etc/modules.conf ]; then
  36         MODULES_CONF=/etc/modules.conf
  37 else
  38         MODULES_CONF=/etc/conf.modules
  39 fi
  40
  41 driver_start()
  42 {
  43   #
  44   # insert all sound modules
  45   #
  46   if OLDLOGLEV=$(awk '{print $1}' < /proc/sys/kernel/printk 2> /dev/null); then
  47         /sbin/loglevel 1
  48   fi
  49   awk '$1 == "alias" && $3 != "off" && ($2 ~ /^snd-card-[0-9]$/) {print $2}' < $MODULES_CONF | \
  50     while read line; do \
  51       msg_starting "sound driver: $line"
  52       busy
  53       /sbin/modprobe $line
  54       ok
  55     done
  56   awk '$1 == "alias" && $3 != "off" && ($2 ~ /^sound-service-[0-9]-[0-9]+$/) {print $2}' < $MODULES_CONF | \
  57     while read line; do \
  58       msg_starting "sound driver: $line"
  59       busy
  60       /sbin/modprobe $line
  61       ok
  62     done
  63   if [ -n "$OLDLOGLEV" ]; then
  64         /sbin/loglevel "$OLDLOGLEV"
  65   fi
  66   #
  67   # restore driver settings
  68   #
  69   if [ -x /usr/sbin/alsactl ]; then
  70     if [ -f /etc/asound.state ]; then
  71       if [ "$(kernelver)" -lt "002006012" ]; then
  72         for i in 1 2 3 4; do
  73           [ -a /dev/snd/controlC0 ] && break
  74           sleep 1
  75         done
  76       fi
  77       /usr/sbin/alsactl restore
  78     fi
  79   else
  80     show "ERROR: alsactl not found"; fail
  81   fi
  82 }
  83
  84 detect_stop()
  85 {
  86   #
  87   # remove all sound modules
  88   #
  89   /sbin/lsmod | awk '/^snd/ { print $0 }' | while read line; do \
  90      /sbin/rmmod `echo $line | cut -d ' ' -f 1`; \
  91   done
  92 }
  93
  94 driver_stop()
  95 {
  96   #
  97   # store driver settings
  98   #
  99   if [ -x /usr/sbin/alsactl ]; then
 100     /usr/sbin/alsactl store
 101   else
 102     show '!!!alsactl not found!!!'; fail
 103   fi
 104   #
 105   # remove all sound modules
 106   #
 107   detect_stop
 108 }
 109
 110 detect_start()
 111 {
 112   #
 113   # run only detect module
 114   #
 115   /sbin/modprobe snd-detect
 116 }
 117
 118 # Start driver.
 119 start() {
 120         if [ ! -d /proc/asound ]; then
 121                 driver_start
 122                 if [ -d /proc/asound ]; then
 123                         touch /var/lock/subsys/alsasound
 124                 else
 125                         exit 1
 126                 fi
 127         else
 128                 if [ -f /proc/asound/detect ]; then
 129                         show "Shutting down sound detect module"
 130                         detect_stop
 131                         ok
 132                         driver_start
 133                         if [ -d /proc/asound ]; then
 134                                 touch /var/lock/subsys/alsasound
 135                         else
 136                                 exit 1
 137                         fi
 138                 else
 139                         msg_already_running "ALSA driver"
 140                 fi
 141         fi
 142 }
 143
 144 # Stop daemons.
 145 stop() {
 146         if [ -d /proc/asound ]; then
 147                 show "Shutting down sound driver"
 148                 busy
 149                 if [ -f /proc/asound/detect ]; then
 150                         detect_stop
 151                 else
 152                         driver_stop
 153                 fi
 154                 (rmmod isapnp; rmmod soundcore) 2> /dev/null
 155                 if [ -d /var/lock/subsys ]; then
 156                         rm -f /var/lock/subsys/alsasound
 157                 fi
 158                 ok
 159         else
 160                 msg_not_running "ALSA driver"
 161         fi
 162 fi
 163
 164 # See how we were called.
 165 case "$1" in
 166   start)
 167         start
 168         ;;
 169   stop)
 170         stop
 171         ;;
 172   restart|force-reload)
 173         stop
 174         start
 175         ;;
 176   status)
 177         # TODO
 178         ;;
 179   *)
 180         msg_usage "$0 {start|stop|restart|force-reload|status}"
 181         exit 3
 182 esac
 183
 184 exit 0