#!/bin/sh
if test -f /etc/oss.conf
then
  . /etc/oss.conf
else
  OSSLIBDIR=/usr/lib/oss
fi

if ! test -d /proc
then
	echo soundon script requires procfs to be mounted at /proc!
	exit 200
fi

if test -f /proc/opensound/devfiles
then
	echo OSS is already loaded.
	exit 0
fi

if test -f $OSSLIBDIR/starting
then
	echo Previous start of OSS crashed the system
	echo Please resolve the situation and remove file
	echo \"$OSSLIBDIR/starting\". Then start OSS by
	echo running soundon again.
	exit 1
fi

NOTIFY=0

LOG=/var/log/soundon.log
echo "Open Sound System starting" `date` > $LOG
echo "OSS version: " `cat $OSSLIBDIR/version.dat` >> $LOG 2>&1
KERNEL_VERSION=`uname -r`
echo "Kernel version: " $KERNEL_VERSION >> $LOG
KERNEL_VERMAGIC=`/usr/sbin/ossvermagic -z -s`
echo "Kernel vermagic: " $KERNEL_VERMAGIC >> $LOG 2>&1

if ! test -f $OSSLIBDIR/etc/installed_drivers
then
	echo No $OSSLIBDIR/etc/installed_drivers - running ossdetect >> $LOG
	/usr/sbin/ossdetect -v >> $LOG
fi

if ! test -f $OSSLIBDIR/etc/installed_drivers
then
	echo Still no $OSSLIBDIR/etc/installed_drivers - cannot continue >> $LOG
	echo No $OSSLIBDIR/etc/installed_drivers - cannot continue
	exit 10
fi

UBUNTU_OVERRIDE=
POS_UBUNTU_OVERRIDE=
if  test -f /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko
then
# Verify that vermagic of OSS matches the kernel vermagic

	OSS_VERMAGIC=`/usr/sbin/ossvermagic -z -q /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko`

	if ! test "$OSS_VERMAGIC " = "$KERNEL_VERMAGIC "
	then
		OSS_ORIG_VERMAGIC="$OSS_VERMAGIC"
		OSS_VERMAGIC=`/usr/sbin/ossvermagic -z -u -q /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko`
		POS_UBUNTU_OVERRIDE=1
	fi

	if ! test "$OSS_VERMAGIC " = "$KERNEL_VERMAGIC "
	then
		echo "Old    vermagic: " $OSS_VERMAGIC >> $LOG
		rm -rf /lib/modules/$KERNEL_VERSION/kernel/oss
		echo Previous OSS modules were for a different kernel version - removed
		echo Previous OSS modules were for a different kernel version - removed >> $LOG
	elif test "$POS_UBUNTU_OVERRIDE " = "1 "
	then
		echo "Vermagic backup check activated for Ubuntu. Backup vermagic: $OSS_VERMAGIC. OSS stored vermagic $OSS_ORIG_VERMAGIC" >> $LOG
		UBUNTU_OVERRIDE="-u"
	fi
fi

if ! test -f /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko
then
	NOTIFY=1
	echo Relinking OSS kernel modules for \"$KERNEL_VERMAGIC\"
	echo This may take few moments - please stand by...
	echo Relinking OSS kernel modules for $KERNEL_VERMAGIC >> $LOG

	rm -f /var/log/relink.log
	if ! (cd $OSSLIBDIR/build && sh install.sh > /var/log/relink.log 2>&1)
	then
		cat /var/log/relink.log >> $LOG 2>&1
		cat /var/log/relink.log
		echo
		echo Relinking the OSS kernel modules failed
		rm -f /var/log/relink.log
		exit 20
	fi
	
	cat /var/log/relink.log >> $LOG 2>&1
	echo Relinking OSS kernel modules finished
	rm -f /var/log/relink.log
fi

if ! test -f /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko
then
	echo
	echo No /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko module >> $LOG
	echo No /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko module in the system
	exit 30
fi

OSS_VERMAGIC=`/usr/sbin/ossvermagic -z $UBUNTU_OVERRIDE -q /lib/modules/$KERNEL_VERSION/kernel/oss/osscore.ko`
echo "OSS    vermagic: " $OSS_VERMAGIC >> $LOG

if ! test "$OSS_VERMAGIC " = "$KERNEL_VERMAGIC "
then
	echo OSS driver modules do not match the current kernel >> $LOG
	echo
	echo Error: OSS driver modules do not match the current kernel
	echo
	echo "Kernel vermagic: " $KERNEL_VERMAGIC
	echo "OSS    vermagic: " $OSS_VERMAGIC
	echo
	echo The most likely reason is that the kernel development package
        echo installed in the system is wrong. Please refer to the documentation
	echo of your Linux distribution for more info about setting up the
	echo kernel/driver development environment properly.
	echo
	exit 40
fi

if test -f $OSSLIBDIR/etc/license.asc
then
   /usr/sbin/ossdetect -l >> $LOG
fi

if test -d /proc/asound || grep -q '^ *14 ' < /proc/devices
then
	if ! sh $OSSLIBDIR/scripts/remove_drv.sh>> $LOG
	then
		echo Failed to disable conflicting sound drivers >> $LOG
		echo Failed to disable conflicting sound drivers 
		echo Reboot and try running soundon again
		echo
		echo Also check that you have not compiled sound support statically
		echo into the kernel.
		exit 50
	fi
fi

echo >> $LOG
echo '*** Loading OSS kernel modules ***' >> $LOG
echo >> $LOG

touch $OSSLIBDIR/starting
sync

OPTIONS=
if test -f $OSSLIBDIR/conf/osscore.conf
then
  OPTIONS="`grep -v -h '^#' $OSSLIBDIR/conf/osscore.conf|sed 's/[ \t]//g'`"
fi

if ! /sbin/modprobe osscore $OPTIONS
then
	echo Loading the osscore module failed
	echo Loading the osscore module failed >> $LOG
	dmesg >> $LOG
	exit 60
fi

echo "osscore module loaded OK" >> $LOG

for n in `cat $OSSLIBDIR/etc/installed_drivers | sed 's/#.*//'`
do
	OPTIONS=

	if test -f $OSSLIBDIR/conf/$n.conf
	then
	  OPTIONS="`grep -v -h '^#' $OSSLIBDIR/conf/$n.conf|sed 's/[ \t]//g'`"
	fi

	if ! /sbin/modprobe $n $OPTIONS
	then
		echo Loading module $n failed '-' ignored >> $LOG
		echo Loading module $n failed '-' ignored
	else
		echo $n module loaded OK >> $LOG
	fi
done
echo >> $LOG
echo '*** Finished loading OSS kernel modules ***' >> $LOG
echo >> $LOG

if ! test -f /proc/opensound/devfiles
then
	echo OSS Core module refused to start >> $LOG
	echo OSS Core module refused to start
	dmesg >> $LOG
	exit 70
fi

/usr/sbin/ossdetect -d >> $LOG 2>&1

# Restore the legacy device links. This is necessary because in some
# Linux distributions they get lost when the system is booted.
if test -f $OSSLIBDIR/etc/legacy_devices
then
	sh $OSSLIBDIR/etc/legacy_devices >> $LOG 2>&1
fi

/usr/sbin/ossdevlinks -v >> $LOG 2>&1

echo "+++ ossinfo -v3 +++" >> $LOG
ossinfo -v3 >> $LOG 2>&1
echo "+++ /dev/sndstat +++" >> $LOG
cat /dev/sndstat >> $LOG 2>&1
echo "+++ dmesg +++" >> $LOG
dmesg >> $LOG
echo "+++ lspci +++" >> $LOG
lspci -vnn >> $LOG 2>&1
echo "+++ /proc/interrupts +++" >> $LOG
cat /proc/interrupts >> $LOG 2>&1
echo "+++ /proc/cpuinfo +++" >> $LOG
cat /proc/cpuinfo >> $LOG 2>&1
echo "+++ /proc/opensound/devfiles +++" >> $LOG
cat /proc/opensound/devfiles >> $LOG 2>&1
ls -l /dev/dsp* /dev/mixer* /dev/midi* /dev/oss/*/* >> $LOG 2>&1

echo >> $LOG
/usr/sbin/savemixer -L -v >> $LOG 2>&1

# Setup ALSA emulation

if test -f $OSSLIBDIR/.cuckoo_installed
then
# Use kernel based ALSA compatibility

  if ! test -f /lib/modules/$KERNEL_VERSION/kernel/sound/core/snd.ko
  then
	sh $OSSLIBDIR/scripts/setup-alsa.sh >> $LOG 2>&1
  	depmod -a
  fi

  echo "*** Setting up ALSA compatibility ****" >> $LOG
  modprobe cuckoo >> $LOG 2>&1
  head -10 /proc/asound/version >> $LOG 2>&1
  lsmod|grep snd >> $LOG
  echo "**************************************" >> $LOG
elif test -f $OSSLIBDIR/.libsalsa_installed
then
# Use library based ALSA compatibility

  if test -f $OSSLIBDIR/lib/libsalsa.so.2.0.0
  then
     if test "`uname -m` " = "x86_64 "
     then
       ln -sf $OSSLIBDIR/lib/libsalsa.so.2.0.0 /usr/lib64/libasound.so.2
       #ln -sf $OSSLIBDIR/lib/libOSSlib.so /usr/lib64
     else
       if test -s /lib/libasound.so.2
       then
         ln -sf $OSSLIBDIR/lib/libsalsa.so.2.0.0 /lib/libasound.so.2
         #ln -sf $OSSLIBDIR/lib/libOSSlib.so /lib
       fi
  
       if test -s /usr/lib/libasound.so.2
       then
         ln -sf $OSSLIBDIR/lib/libsalsa.so.2.0.0 /usr/lib/libasound.so.2
         #ln -sf $OSSLIBDIR/lib/libOSSlib.so /usr/lib
       fi
     fi
  fi
fi

# Setup libOSSlib.so
if test -f $OSSLIBDIR/lib/libOSSlib.so
then
   if test "`uname -m` " = "x86_64 "
   then
     ln -sf $OSSLIBDIR/lib/libOSSlib.so /usr/lib64
     ln -sf $OSSLIBDIR/lib/libossmix.so /usr/lib64
   else
     if test -s /lib/libasound.so.2
     then
       ln -sf $OSSLIBDIR/lib/libOSSlib.so /lib
       ln -sf $OSSLIBDIR/lib/libossmix.so /lib
     fi

     if test -s /usr/lib/libasound.so.2
     then
       ln -sf $OSSLIBDIR/lib/libOSSlib.so /usr/lib
       ln -sf $OSSLIBDIR/lib/libossmix.so /usr/lib
     fi
   fi
fi

# Setup Flash 9 audio support plugin for OSS

if test -d /usr/lib64 && test -f $OSSLIBDIR/lib/libflashsupport_64.so
then
  ln -sf $OSSLIBDIR/lib/libflashsupport_64.so /usr/lib64/libflashsupport.so
fi

if test -d /usr/lib32 && test -f $OSSLIBDIR/lib/libflashsupport_32.so
then
  ln -sf $OSSLIBDIR/lib/libflashsupport_32.so /usr/lib32/libflashsupport.so
fi

if ! test -f /usr/lib/libflashsupport.so && test -f $OSSLIBDIR/lib/libflashsupport_32.so
then
  ln -sf $OSSLIBDIR/lib/libflashsupport_32.so /usr/lib/libflashsupport.so
fi

if test -x $OSSLIBDIR/soundon.user
then
  echo Running $OSSLIBDIR/soundon.user >> $LOG
  $OSSLIBDIR/soundon.user >> $LOG 2>&1
fi

# Use alternative place for soundon.user
if test -x /etc/oss/soundon.user
then
  echo Running /etc/oss/soundon.user >> $LOG
  /etc/oss/soundon.user >> $LOG 2>&1
fi

if test "`ossinfo -g|grep TRIAL` " != " "
then
	echo
	echo "************************************************************"
	echo "* NOTE! You are using trial version of Open Sound System   *"
	echo "************************************************************"
	echo

	sleep 1
fi

if test "`ossinfo -g|grep EXPIRED` " != " "
then
	echo
	echo "****************************************************************"
	echo "* NOTE! Your Open Sound System evaluation license has expired  *"
	echo "****************************************************************"
	echo

	sleep 15
fi

if test "$NOTIFY " = "1 "
then
  echo
  echo OSS started OK
fi

rm -f $OSSLIBDIR/starting

exit 0