alsaconf.in

alsa-utils-1.0.14编译声卡驱动所需要的一些文件源码

#!/bin/bash
#
#  ALSA Configurator
#
#  Copyright (c) 1999-2002  SuSE GmbH
#                           Jan ONDREJ
#
#  written by Takashi Iwai <[e-mail]>
#             Bernd Kaindl <[e-mail]>
#             Jan ONDREJ (SAL) <[e-mail]>
#
#  based on the original version of Jan ONDREJ's alsaconf for ALSA 0.4.
#
#  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.
#

export TEXTDOMAIN=alsaconf

prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@
sbindir=@sbindir@
version=@VERSION@
USE_NLS=@USE_NLS@

# Useful for debugging
PROCFS="/proc"
SYSFS="/sys"

# i18n stuff
if test "$USE_NLS" = "yes" && which gettext > /dev/null; then
  xecho() {
    gettext -s "$*"
  }
else
  xecho() {
    echo "$*"
  }
  gettext() {
    echo -n "$*"
  }
fi
xmsg() {
  msg=$(gettext "$1")
  shift
  printf "$msg" $*
}

# Check for GNU/Linux distributions
if [ -f /etc/SuSE-release ]; then
  distribution="suse"
  suse_version=$(grep 'VERSION = ' /etc/SuSE-release | sed -e s/'VERSION = '//)
elif [ -f /etc/UnitedLinux-release ]; then
  distribution="suse"
elif [ -f /etc/gentoo-release ]; then
  distribution="gentoo"
elif [ -f /etc/debian_version ]; then
  distribution="debian"
elif [ -f /etc/mandrake-release ]; then
  distribution="mandrake"
elif test -f /etc/redhat-release && grep -q "Red Hat" /etc/redhat-release; then
  distribution="redhat"
elif test -f /etc/fedora-release && grep -q "Fedora" /etc/fedora-release; then
  distribution="fedora"
else
  distribution="unknown"
fi

for prog in lspci lsmod; do
	for path in /sbin /usr/sbin /bin /usr/bin;do
		test -x $path/$prog && eval $prog=$path/$prog
	done
done
unset prog path

usage() {
    xecho "ALSA configurator"
    echo "  version $version"
    xecho "usage: alsaconf [options]
  -l|--legacy    check only legacy non-isapnp cards
  -m|--modinfo   read module descriptions instead of reading card db
  -s|--sound wav-file
                 use the specified wav file as a test sound
  -u|--uid uid   set the uid for the ALSA devices (default = 0) [obsoleted]
  -g|--gid gid   set the gid for the ALSA devices (default = 0) [obsoleted]
  -d|--devmode mode
                 set the permission for ALSA devices (default = 0666) [obs.]
  -r|--strict    set strict device mode (equiv. with -g 17 -d 0660) [obsoleted]
  -L|--log file  logging on the specified file (for debugging purpose only)
  -p|--probe card-name
                 probe a legacy non-isapnp card and print module options
  -P|--listprobe list the supported legacy card modules
  -c|--config file
                 specify the module config file
  -R|--resources list available DMA and IRQ resources with debug for legacy
  -h|--help      what you're reading"
}

OPTS=`getopt -o lmL:hp:Pu:g:d:rs:c:R --long legacy,modinfo,log:,help,probe:,listprobe,uid:,gid:,devmode:,strict,sound:,config:,resources -n alsaconf -- "$@"` || exit 1
eval set -- "$OPTS"

do_legacy_only=0
use_modinfo_db=0
alsa_uid=0
alsa_gid=0
alsa_mode=0666
legacy_probe_card=""
LOGFILE=""
TESTSOUND="@TESTSOUND@"
try_all_combination=0
resources="false"

# legacy support
LEGACY_CARDS="opl3sa2 cs4236 cs4232 cs4231 es18xx es1688 sb16 sb8"

while true ; do
    case "$1" in
    -l|--legacy)
	do_legacy_only=1; shift ;;
    -m|--modinfo)
	use_modinfo_db=1; shift ;;
    -s|--sound)
	TESTSOUND=$2; shift 2;;
    -h|--help)
	usage; exit 0 ;;
    -L|--log)
	LOGFILE="$2"; shift 2;;
    -p|--probe)
	legacy_probe_card="$2"; shift 2;;
    -P|--listprobe)
	echo "$LEGACY_CARDS"; exit 0;;
    -u|--uid)
	alsa_uid="$2"; shift 2;;
    -g|--gid)
	alsa_gid="$2"; shift 2;;
    -d|--devmode)
	alsa_mode="$2"; shift 2;;
    -r|--strict)
	alsa_uid=0; alsa_gid=17; alsa_mode=0660; shift;;
    -c|--config)
	cfgfile="$2"; shift 2;;
    -R|--resources)
        resources="true"; shift;;
    --) shift ; break ;;
    *) usage ; exit 1 ;;
    esac
done

#
# probe legacy ISA cards
#

check_dma_avail () {
    list=""
    if [ -d $SYSFS/bus/pnp/devices ]; then
      for dma in $*; do
        ok="true"
        for i in $SYSFS/bus/pnp/devices/??:* ; do
          if grep -q "state = active" $i/resources ; then
            if grep -q '^dma '$dma'$' $i/resources; then
              ok="false"
            fi
          fi
        done
        if [ -r $PROCFS/dma ]; then
	  if grep -q '^ *'$dma': ' $PROCFS/dma ; then
            ok="false"
          fi
	fi
        if [ "$ok" = "true" ]; then
          list="$list $dma"
        fi
      done
    else
      if [ -r $PROCFS/dma ]; then
  	for dma in $*; do
	    grep -q '^ *'$dma': ' $PROCFS/dma || list="$list $dma"
	done
      fi
    fi
    if [ ! -z "$list" ]; then
      echo $list
    fi
}

check_irq_avail () {
    list=""
    if [ -d $SYSFS/bus/pnp/devices ]; then
      for irq in $*; do
        ok="true"
        for i in $SYSFS/bus/pnp/devices/??:* ; do
          if grep -q "state = active" $i/resources ; then
            if grep -q '^irq '$irq'$' $i/resources; then
              ok="false"
            fi
          fi
        done
        if [ -r $PROCFS/interrupts ]; then
	  if grep -q '^ *'$irq': ' $PROCFS/interrupts ; then
            ok="false"
          fi
	fi
        if [ "$ok" = "true" ]; then
          list="$list $irq"
        fi
      done
    else
      if [ -r $PROCFS/interrupts ]; then
	for irq in $*; do
	    grep -q '^ *'$irq': ' $PROCFS/interrupts || list="$list $irq"
	done
      fi
    fi
    if [ ! -z "$list" ]; then
      echo $list
    fi
}

#
#
#

if [ "$resources" = "true" ]; then
  if [ -d $SYSFS/bus/pnp/devices ]; then
    for i in $SYSFS/bus/pnp/devices/??:* ; do
      if [ "$resources" = "true" ]; then
        echo ">>>>> PnP file: $i/resources"
        cat $i/resources
      fi
    done
  fi
  if [ -r $PROCFS/dma ]; then
    echo ">>>>> Allocated dma channels:"
    cat $PROCFS/dma
  fi
  if [ -r $PROCFS/interrupts ]; then
    echo ">>>>> Allocated interrupt channels:"
    cat $PROCFS/interrupts
  fi
  echo -n "Valid DMA channels: "
  check_dma_avail 0 1 2 3 4 5 6 7
  echo -n "Valid IRQ channels: "
  check_irq_avail 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
  exit 0
fi

# Check for root privileges
if [ `id -u` -ne 0 ]; then
  xecho "You must be root to use this script."
  exit 1
fi

#
# check the snd_ prefix for ALSA module options
# snd_ prefix is obsoleted since 0.9.0rc4.
#
if /sbin/modinfo -p snd | grep -q snd_ ; then
  mpfx="snd_"
else
  mpfx=""
fi

alsa_device_opts=""
if /sbin/modinfo -p snd | grep -q uid ; then
  if [ x"$alsa_uid" != x0 ]; then
    alsa_device_opts="$alsa_device_opts ${mpfx}device_uid=$alsa_uid"
  fi
  if [ x"$alsa_gid" != x0 ]; then
    alsa_device_opts="$alsa_device_opts ${mpfx}device_gid=$alsa_gid"
  fi
fi
if /sbin/modinfo -p snd | grep -q device_mode ; then
  if [ x"$alsa_mode" != x0 ]; then
    alsa_device_opts="$alsa_device_opts ${mpfx}device_mode=$alsa_mode"
  fi
fi

case `uname -r` in
2.6.*)
  kernel="new"
  ;;
*)
  kernel="old"
  ;;
esac

# cfgfile = base config file to remove/update the sound setting
# cfgout = new config file to write the sound setting (if different from $cfgfile)
if [ -n "$cfgfile" ]; then
  if [ ! -r "$cfgfile" ]; then
    xecho "ERROR: The config file doesn't exist: "
    echo $cfgfile
    exit 1
  fi
else
if [ "$distribution" = "gentoo" ]; then
  cfgfile="/etc/modules.d/alsa"
elif [ "$kernel" = "new" ]; then
  if [ -d /etc/modprobe.d ]; then
    cfgout="/etc/modprobe.d/sound"
  fi
  cfgfile="/etc/modprobe.conf"
elif [ "$distribution" = "debian" ]; then
  cfgfile="/etc/modutils/sound"
elif [ -e /etc/modules.conf ]; then
  cfgfile="/etc/modules.conf"
elif [ -e /etc/conf.modules ]; then
  cfgfile="/etc/conf.modules"
else
  cfgfile="/etc/modules.conf"
  touch /etc/modules.conf
fi
fi

# Check for dialog, whiptail, gdialog, awk, ... ?
if which dialog > /dev/null; then
    DIALOG=dialog
else
  if which whiptail > /dev/null; then
    whiptail_wrapper() {
      X1="$1"
      X2="$2"
      if [ $1 = --yesno ]; then
        X3=`expr $3 + 2`
      else
        X3=$3
      fi
      shift 3
      whiptail "$X1" "$X2" $X3 "$@"
    }
    DIALOG=whiptail_wrapper
  else
    xecho "Error, dialog or whiptail not found."
    exit 1
  fi
fi
if which awk > /dev/null; then :
else
  xecho "Error, awk not found. Can't continue."
  exit 1
fi

#
# remove entries by yast2 sound configurator
#
remove_y2_block() {
    awk '
    /^alias sound-slot-[0-9]/ { next }
    /^alias char-major-116 / { next }
    /^alias char-major-14 / { next }
    /^alias snd-card-[0-9] / { next }
    /^options snd / { next }
    /^options snd-/ { next }
    /^options off / { next }
    /^alias sound-service-[0-9]/ { next }
    /^# YaST2: sound / { next }
   { print }'
}

#
# remove entries by sndconfig sound configurator
#
# found strings to search for in WriteConfModules, 
# from sndconfig 0.68-4 (rawhide version)

remove_sndconfig_block() {
    awk '
    /^alias sound-slot-0/ { modulename = $3 ; next }
    /^alias sound-slot-[0-9]/ { next }
    /^post-install sound-slot-[0-9] / { next }
    /^pre-remove sound-slot-[0-9] / { next }
    /^options sound / { next }
    /^alias synth0 opl3/ { next }
    /^options opl3 / { next }
    /^alias midi / { mididev = $3 ; next }
    /^options / { if ($2 == mididev) next }
    /^pre-install / { if ($2 == mididev) next }
    /^alias synth0 / { synth = $3 ; next }
    /^post-install / { if ($2 == synth) next }
    /^options sb / { next }
    /^post-install .+ \/bin\/modprobe "aci"/ { if ($2 == modulename) next }
    /^options adlib_card / { next }
    /^options .+ isapnp=1/ { if ($2 == modulename) next }
    /^options i810_audio / { next }
    /^options / {if ($2 == modulename) next }
   { print }'
}

#
# remove the previous configuration by alsaconf
#
remove_ac_block() {
    awk '/^'"$ACB"'$/,/^'"$ACE"'$/ { next } { print }'
}

#
# set default mixer volumes
#
set_mixers() {
    amixer -s -q <<EOF
set Master 75% unmute
set Master -12dB
set 'Master Mono' 75% unmute
set 'Master Mono' -12dB
set Front 75% unmute
set Front -12dB
set PCM 90% unmute
set PCM 0dB
mixer Synth 90% unmute
mixer Synth 0dB
mixer CD 90% unmute
mixer CD 0dB
# mute mic
set Mic 0% mute
# ESS 1969 chipset has 2 PCM channels
set PCM,1 90% unmute
set PCM,1 0dB
# 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 -12dB
set DAC,0 90% unmute
set DAC,0 -12dB
set DAC,1 90% unmute
set DAC,1 -12dB
# some notebooks use headphone instead of master
set Headphone 75% unmute
set Headphone -12dB
set Playback 100% unmute
# turn off digital switches
set "SB Live Analog/Digital Output Jack" off
set "Audigy Analog/Digital Output Jack" off
EOF
}


# INTRO
intro() {
  local msg=$(xmsg "
                   ALSA  CONFIGURATOR
                   version %s

            This script is a configurator for
    Advanced Linux Sound Architecture (ALSA) driver.


  If ALSA is already running, you should close all sound
  apps now and stop the sound driver.
  alsaconf will try to do this, but it's not 100%% sure." $version)
  $DIALOG --msgbox "$msg" 20 63 || acex 0
}

# FAREWELL
farewell() {
  local msg=$(gettext "

     OK, sound driver is configured.

                  ALSA  CONFIGURATOR

          will prepare the card for playing now.

     Now I'll run alsasound init script, then I'll use
     amixer to raise the default volumes.
     You can change the volume later via a mixer
     program such as alsamixer or gamix.
  
  ")
  $DIALOG --msgbox "$msg" 17 60 || acex 0
}