#!/bin/sh

MAJOR=14
MAX_CARDS=4
PERM=666

function create_device () {
  rm -f $1
  echo -n "Creating $1..."
  mknod -m $PERM $1 c $MAJOR $2
  echo " done"
}

function create_odevices () {
  tmp=0
  tmp1=0
  rm -f $1 $1?
  echo -n "Creating $1?..."
  while [ $tmp1 -lt $MAX_CARDS ]; do
    minor=$[ $2 + $tmp ]
    mknod -m $PERM $1$tmp1 c $MAJOR $minor
    tmp=$[ $tmp + 16 ]
    tmp1=$[ $tmp1 + 1 ]
  done
  echo " done"
}

function create_device1 () {
  rm -f $1
  minor=$2
  echo -n "Creating $1..."
  mknod -m $PERM $1 c $MAJOR $minor
  echo " done"
}

function create_devices () {
  tmp=0
  rm -f $1 $1?
  echo -n "Creating $1?..."
  while [ $tmp -lt $MAX_CARDS ]; do
    minor=$[ $2 + $tmp ]
    mknod -m $PERM $1$tmp c $MAJOR $minor
    tmp=$[ $tmp + 1 ]
  done
  echo " done"
}

function create_devices2 () {
  tmp=0
  rm -f $1 $1?
  echo -n "Creating $1??..."
  while [ $tmp -lt $MAX_CARDS ]; do
    tmp1=0
    while [ $tmp1 -lt $3 ]; do
      minor=$[ $tmp * $3 ]
      minor=$[ $2 + $minor + $tmp1 ]
      mknod -m $PERM $1$tmp$tmp1 c $MAJOR $minor
      tmp1=$[ $tmp1 + 1 ]
    done
    tmp=$[ $tmp + 1 ]
  done
  echo " done"
}

if test "$1" = "-?" || test "$1" = "-h" || test "$1" = "--help"; then
  echo "Usage: snddevices [max]"
  exit
fi

if test "$1" = "max"; then
  DSP_MINOR=19
fi

# OSS (Lite) compatible devices...

if test $MAJOR -eq 14; then
  create_odevices /dev/mixer		0
  create_device /dev/sequencer		1
  create_odevices /dev/midi		2
  create_odevices /dev/dsp		3
  create_odevices /dev/audio		4
  create_device /dev/sndstat		6
  create_device /dev/music		8
  create_odevices /dev/dmmidi		9
  create_odevices /dev/dmfm		10
  create_odevices /dev/adsp		12	# alternate dsp
  create_odevices /dev/amidi		13	# alternate midi
  create_odevices /dev/admmidi		14	# alternate direct midi
  # create symlinks
  ln -svf /dev/mixer0 /dev/mixer
  ln -svf /dev/midi0 /dev/midi
  ln -svf /dev/dsp0 /dev/dsp
  ln -svf /dev/audio0 /dev/audio
  ln -svf /dev/music /dev/sequencer2
  ln -svf /dev/adsp0 /dev/adsp
  ln -svf /dev/amidi0 /dev/amidi
fi

# New devices (obsolete now)...

mv -f /dev/sndstat /dev/1sndstat
rm -f /dev/snd*
mv -f /dev/1sndstat /dev/sndstat
#create_device1	/dev/sndseq		136
#create_devices  /dev/sndcontrol	144
#create_devices2 /dev/sndmixer		152	2
#create_devices2 /dev/sndpcm		168	4
#create_devices2 /dev/sndmidi		200	4
#create_devices	/dev/sndfm		248

# New dynamic sound device filesystem

echo "ALSA dynamic sound device filesystem"
ln -sfv /proc/asound/dev /dev/snd
