alsaconf.in

alsa-utils-1.0.14编译声卡驱动所需要的一些文件源码

# Exit function
acex() {
  cleanup
  clear
  exit $1
}

#
# search for alsasound init script
#

if [ "$distribution" = "debian" ]; then
    rcalsasound=/etc/init.d/alsa
elif [ -x /etc/init.d/alsasound ]; then
    rcalsasound=/etc/init.d/alsasound
elif [ -x /usr/sbin/rcalsasound ]; then
    rcalsasound=/usr/sbin/rcalsasound
elif [ -x /sbin/rcalsasound ]; then
    rcalsasound=/sbin/rcalsasound
elif [ -x /etc/rc.d/init.d/alsasound ]; then
    rcalsasound=/etc/rc.d/init.d/alsasound
elif [ -x /etc/init.d/alsa ]; then
    rcalsasound=/etc/init.d/alsa
else
    rcalsasound=rcalsasound
fi

    
# MAIN
if [ -d $PROCFS/asound ]; then
  $rcalsasound stop >/dev/null 2>&1
  $rcalsasound unload >/dev/null 2>&1
  /sbin/rmmod dmasound dmasound_awacs 2>/dev/null
fi


cleanup () {
    killall -9 aplay arecord >/dev/null 2>&1
    /sbin/modprobe -r isapnp >/dev/null 2>&1
    /sbin/modprobe -r isa-pnp >/dev/null 2>&1
    rm -f "$TMP" "$addcfg" "$FOUND" "$DUMP"
}
trap cleanup 0 

TMP=`mktemp -q /tmp/alsaconf.XXXXXX`
if [ $? -ne 0 ]; then
	xecho "Can't create temp file, exiting..."
        exit 1
fi
addcfg=`mktemp -q /tmp/alsaconf.XXXXXX`
if [ $? -ne 0 ]; then
	xecho "Can't create temp file, exiting..."
        exit 1
fi
FOUND=`mktemp -q /tmp/alsaconf.XXXXXX`
if [ $? -ne 0 ]; then
	xecho "Can't create temp file, exiting..."
        exit 1
fi
DUMP=`mktemp -q /tmp/alsaconf.XXXXXX`
if [ $? -ne 0 ]; then
	xecho "Can't create temp file, exiting..."
        exit 1
fi

# convert ISA PnP id number to string 'ABC'
convert_isapnp_id () {
    if [ -z "$1" ]; then
	echo "XXXX"
	return
    fi
    let a='('$1'>>2) & 0x3f'
    let b='(('$1' & 0x03) << 3) | (('$1' >> 13) & 0x07)'
    let c='('$1'>> 8) & 0x1f'
    strs='@ABCDEFGHIJKLMNOPQRSTUVWXYZ'
    echo ${strs:$a:1}${strs:$b:1}${strs:$c:1}
}

# swap high & low bytes
swap_number () {
    if [ -z "$1" ]; then
	echo "0000"
	return
    fi
    let v='(('$1'>>8)&0xff)|(('$1'&0xff)<<8)'
    printf "%04x" $v
}

# build card database
# build_card_db filename
build_card_db () {
    MODDIR=/lib/modules/`uname -r`
    last_driver=""
    echo -n > $1

    # list pci cards
    while read driver vendor device dummy; do
	if expr $driver : 'snd-.*' >/dev/null ; then
	    if [ "$last_driver" != "$driver" ]; then
		echo $driver.o
		last_driver=$driver
	    fi
	    id1=`printf '0x%04x' $vendor`
	    id2=`printf '0x%04x' $device`
	    echo "PCI: $id1=$id2"
	fi
    done < $MODDIR/modules.pcimap >> $1

    # list isapnp cards
    while read driver cardvendor carddevice data vendor func; do
	if expr $driver : 'snd-.*' >/dev/null ; then
	    if [ "$last_driver" != "$driver" ]; then
		echo $driver.o
		last_driver=$driver
	    fi
	    id1=`convert_isapnp_id $cardvendor`
	    dev1=`swap_number $carddevice`
	    id2=`convert_isapnp_id $vendor`
	    dev2=`swap_number $func`
	    echo "ISAPNP: $id1$dev1=$id2$dev2"
	fi
    done < $MODDIR/modules.isapnpmap >> $1
}

#
# probe cards
#
probe_cards () {
    found="0"
    test -r $PROCFS/isapnp || /sbin/modprobe isapnp >/dev/null 2>&1
    test -r $PROCFS/isapnp || /sbin/modprobe isa-pnp >/dev/null 2>&1
    if [ -r $PROCFS/isapnp ]; then
	cat $PROCFS/isapnp >"$DUMP"
	found="1"
    elif [ -d $SYSFS/bus/pnp/devices ]; then
	# use 2.6 kernel's sysfs output
	# fake the isapnp dump
	index=0
	bindex=0
	for d1 in $SYSFS/devices/pnp* ; do
	  for d2 in $d1/*:* ; do
	    if [ -r $d2/card_id ]; then
	      id=`cat $d2/card_id`
	      name=`cat $d2/name`
	      echo "Card $index '$id:$name' " >> "$DUMP"
	      index=$[$index+1]
	      found="1"
	    else if [ -r $d2/id ]; then
	      # FIXME: multiple id might be present (separated with new-line)
	      id=`head -n 1 $d2/id`
	      echo "BIOS $bindex '$id' " >> "$DUMP"
	      bindex=$[$bindex+1]
	      found="1"
	    fi
	    fi
	  done
	done
    fi
    if [ "$found" = "0" ]; then
      echo -n >"$DUMP"
    fi 
    CARDID_DB=/var/tmp/alsaconf.cards
    if [ ! -r $CARDID_DB ]; then
        use_modinfo_db=1
    fi
    if [ $use_modinfo_db != 1 ]; then
	if [ $CARDID_DB -ot /lib/modules/`uname -r`/modules.dep ]; then
	    use_modinfo_db=1
	fi
    fi
    if [ $use_modinfo_db = 1 ]; then
	xecho "Building card database.."
	build_card_db $CARDID_DB
    fi
    if [ ! -r $CARDID_DB ]; then
	xecho "No card database is found.."
	exit 1
    fi
    ncards=`grep '^snd-.*\.o$' $CARDID_DB | wc -w`

    msg=$(gettext "Searching sound cards")
    awk '
BEGIN {
	format="%-40s %s\n";
	ncards='"$ncards"';
	idx=0;
}
/^snd-.*\.o$/{
	sub(/.o$/, "");
	driver=$0;
	perc=(idx * 100) / (ncards + 1);
	print int(perc);
	idx++;
}
/^[<literal space><literal tab>]*PCI: /{
	gsub(/0x/, "");
	gsub(/=/, ":");
	x = sprintf ("'$lspci' -n 2>/dev/null| grep '"' 04..: '"' | grep %s", $2);
	if (system (x) == 0)
		printf "%s %s\n", $2, driver >>"'"$FOUND"'"
}
/^[<literal space><literal tab>]*ISAPNP: /{
	id2 = substr($0, index($0, "=")+1);
	gsub(/=.*/, "");
	x = sprintf ("grep '\''^Card [0-9] .%s:'\'' '"$DUMP"'", $2);
	if (system (x) == 0)
		printf "%s %s\n", $2, driver >>"'"$FOUND"'"
	else if (index($2, "ffff") > 0) {
		x = sprintf ("grep '\''^BIOS [0-9]* .%s.'\'' '"$DUMP"'", id2);
		if (system (x) == 0)
			printf "%s %s\n", id2, driver >>"'"$FOUND"'"
	}
}' < $CARDID_DB |\
    $DIALOG --gauge "$msg" 6 40 0

    #
    # PowerMac
    #
    if grep -q MacRISC $PROCFS/cpuinfo; then
	MODDIR=/lib/modules/`uname -r`
	find $MODDIR -name 'snd-powermac*' -print | \
	while read i; do
	    i=${i##*/}
	    i=${i%%.o}
	    i=${i%%.ko}
	    echo "PowerMac $i" >> $FOUND
	done
    fi

    #
    # Sparc
    #
    if grep -q Sparc $PROCFS/cpuinfo; then
	test -r $PROCFS/openprom/name || /bin/mount -t openpromfs none $PROCFS/openprom >/dev/null 2>&1
	# Check for an "audio" device
	audio=
	compat=
	if test -r $PROCFS/openprom; then
	    audio=`find $PROCFS/openprom -follow -type d -name "audio*" -print`
	fi
	if test -n "$audio"; then
	    compat=`cat $audio/compatible`
	    compat=${compat#\'}
	    compat=${compat%\'}
	    compat=${compat#SUNW,}
	fi
	# Go through all cards we have
	MODDIR=/lib/modules/`uname -r`
	find $MODDIR -name 'snd-sun-*' -print | \
	while read i; do
	    i=${i##*/}
	    i=${i%%.o}
	    i=${i%%.ko}
	    sdev=`echo ${i#snd-sun-} | tr "[a-z]" "[A-Z]"`

	    if test "$sdev" = "$compat"; then
		echo "$sdev $i" >> $FOUND
	    elif test -r $PROCFS/openprom; then
		find $PROCFS/openprom -follow -type d -name "SUNW,${sdev}*" \
		    -exec echo "$sdev $i" \; 2>/dev/null >> $FOUND
	    else
		echo "$sdev $i" >> $FOUND
	    fi
	done
    fi
}

#
# look for a descriptive device name from the given device id
#
find_device_name () {
    if expr "$1" : '[0-9a-f][0-9a-f][0-9a-f][0-9a-f]:[0-9a-f][0-9a-f][0-9a-f][0-9a-f]' >/dev/null; then
	$lspci -d $1 2>/dev/null| sed -e 's/^.*:..\.. [^:]*: //g'
	return
    elif expr "$1" : '[A-Z@][A-Z@][A-Z@][0-9a-f][0-9a-f][0-9a-f][0-9a-f]' >/dev/null; then
	cardname=`grep '^Card [0-9]\+ .'$1':' $DUMP | head -n 1 | sed -e 's/^Card [0-9]\+ '\''.*:\(.*\)'\'' .*$/\1/'`
	echo $cardname
    else
	echo $1
    fi
}

# get hwcfg file type from the given driver name
get_hwcfg_type () {
    while read dev driver; do
	if [ "$driver" = "$1" ]; then
	    case "$dev" in
	    *:*)
		# FIXME: need to look around /sys/bus/pci/* (or use vpid-* ?)
		devid=`$lspci -d "$dev" | head -n 1 | sed -e 's/ .*$//'`
		case "$devid" in
		*:*:*.*) ;;
		*) devid="0000:$devid" ;;
		esac
		echo bus-pci-$devid
		;;
	    *)
		echo $driver
		;;
	    esac
	    break
	fi
    done
}

# clean up all hwcfg-* files containing ALSA modules
# alsaconf sets up exclusively
cleanup_hwcfg () {
    for i in /etc/sysconfig/hardware/hwcfg-*; do
	grep -q "MODULE='snd-" $i && rm -f $i
    done
}

#
# set up /etc/sysconfig/hardware/hwcfg-* stuff
#
setup_hwcfg () {
    card=$1
    cleanup_hwcfg
    cfg=`echo "$devs_olist" | get_hwcfg_type $card`
    echo "MODULE='$card'" > /etc/sysconfig/hardware/hwcfg-$cfg
    echo "STARTMODE='auto'" >> /etc/sysconfig/hardware/hwcfg-$cfg
}


#
# configure and try test sound
#
ac_config_card () {

    CARD_DRIVER=snd-$1
    CARD_OPTS="${*:2}"

    if [ -n "$cfgout" ]; then
	msg=$(xmsg "
Configuring %s
Do you want to modify %s (and %s if present)?" $CARD_DRIVER $cfgout $cfgfile)
        $DIALOG --yesno "$msg" 8 50 || acex 0
    else
	msg=$(xmsg "
Configuring %s
Do you want to modify %s?" $CARD_DRIVER $cfgfile)
        $DIALOG --yesno "$msg" 8 50 || acex 0
    fi
    clear

    # Copy conf.modules and make changes.
    ACB="# --- BEGIN: Generated by ALSACONF, do not edit. ---"
    ACE="# --- END: Generated by ALSACONF, do not edit. ---"

    # Detect 2.2.X kernel
    KVER=`uname -r | tr ".-" "  "`
    KVER1=`echo $KVER | cut -d" " -f1`
    KVER2=`echo $KVER | cut -d" " -f2`
    if [ $KVER1 -ge 2 ] && [ $KVER2 -ge 2 ]; then
	SOUND_CORE="soundcore"
    else
	SOUND_CORE="snd"
    fi

    if [ -r $cfgfile ] ; then
        if [ "$distribution" = "redhat" -o "$distribution" = "fedora" ] ; then
            remove_ac_block < $cfgfile | remove_sndconfig_block | uniq > $TMP
        else
	    remove_ac_block < $cfgfile | remove_y2_block | uniq > $TMP
        fi
    fi

    if [ -z "$have_alias" -a "$kernel" = "new" ]; then
	if grep -q char-major-116 /lib/modules/`uname -r`/modules.alias; then
	    have_alias="yes"
	fi
    fi
    if [ -z "$have_alias" ]; then
echo "alias char-major-116 snd
alias char-major-14 $SOUND_CORE
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss" >> $addcfg
    fi
    if [ -n "$alsa_device_opts" ]; then
	echo "options snd $alsa_device_opts" >> $addcfg
    fi
echo "alias snd-card-0 $CARD_DRIVER
alias sound-slot-0 $CARD_DRIVER" >> $addcfg
    if [ -n "$CARD_OPTS" ]; then
	echo "options $CARD_DRIVER $CARD_OPTS" >> $addcfg
    fi

    if [ -n "$cfgout" ]; then
	[ ! -r "$cfgfile" ] || cmp -s "$TMP" "$cfgfile" || cat "$TMP" > "$cfgfile"
	cmp -s "$addcfg" "$cfgout" || cat "$addcfg" > "$cfgout"
    else
	echo "$ACB
# --- ALSACONF version $version ---" >> $TMP
        cat "$addcfg" >> "$TMP"
	echo "$ACE
" >> $TMP
        cmp -s "$TMP" "$cfgfile" || cat "$TMP" > "$cfgfile"
    fi

    /sbin/depmod -a 2>/dev/null

    # remove yast2 entries (- only for suse distro)
    if [ -f /var/lib/YaST/unique.inf ]; then
	awk '
BEGIN { in_sound=0; }
/^\[sound\]$/ { print; in_sound=1; next; }
/^\[.+\]$/ { print; in_sound=0; next; }
{ if (in_sound == 0) { print; } }
' < /var/lib/YaST/unique.inf > $TMP
	cp -f $TMP /var/lib/YaST/unique.inf
    fi

    # set up /etc/sysconfig/hardware/*
    if [ "$distribution" = "suse" ]; then
	case "$suse_version" in
	10.*|10)
	    setup_hwcfg $CARD_DRIVER
	    ;;
	esac
    fi

    farewell
    clear
    if [ "$distribution" = "gentoo" ]; then
      xecho "Running modules-update..."
      modules-update
    elif [ "$distribution" = "debian" ]; then
      xecho "Running update-modules..."
      update-modules
    fi
    if [ -x $rcalsasound ] ; then
      echo Loading driver...
      $rcalsasound restart
    fi
    echo Setting default volumes...
    if [ -x $bindir/set_default_volume ]; then
	$bindir/set_default_volume -f
    else
	set_mixers
    fi
    if [ -f $TESTSOUND ]; then
      msg=$(gettext "
       The mixer is set up now for for playing.
       Shall I try to play a sound sample now?

                           NOTE:
If you have a big amplifier, lower your volumes or say no.
    Otherwise check that your speaker volume is open,
          and look if you can hear test sound.
")
      if $DIALOG --yesno "$msg" 13 65 
      then
          clear
	  echo
	  aplay -N $TESTSOUND
      fi
    fi
    if [ ! -r /etc/asound.state ]; then
	xecho "Saving the mixer setup used for this in /etc/asound.state."
	$sbindir/alsactl store
    fi
    clear
    xecho "
===============================================================================

 Now ALSA is ready to use.
 For adjustment of volumes, use your favorite mixer.

 Have a lot of fun!

"
}