alsasound.init

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