#! /bin/sh
#
# sdr_02.sh
#
# Synopsis: The script starts jack, dttsp, connects the jack ports
#
# Version: @(#)sdr.sh v02 27-Aug-2006 ewpereira@gmail.com
#
# Author: Edson Pereira, pu1jte, n1vtn
#
# Usage: sdr_02.sh start|stop
#
##############################################################################
# Configure this to meet your environment

JACKD=/usr/bin/jackd
JACKDRT=/usr/bin/jackstart
JACKC=/usr/bin/jack_connect
DTTSP=/usr/local/bin

##############################################################################
# Setup the environment
. $DTTSP/setup_env
##############################################################################

if [ "$SND_DRIV" == "oss" ]
then
/lib/oss/bin/./soundon
/lib/oss/bin/./ossmix -d1 envy24.ratelock OFF
/lib/oss/bin/./ossmix -d1 envy24.rate $SDR_DEFRATE
HOUT=/dev/dsp
HIN=/dev/dsp4
else
if [ "$SND_DRIV" == "alsa" ]
then
ALSAH=hw:0
fi
fi

# Uncomment if your kernel has realtime capability
#REALTIME=1


##############################################################################
# Test if we have the needed executables and directories
if [ ! -x $JACKD ]; then
echo "Can't find $JACKD"
exit 1
fi

if [ ! -d $DTTSP ]; then
echo "Can't find $DTTSP"
exit 1
fi

if [ ! -x $JACKC ]; then
echo "Can't find $JACKC"
exit 1
fi

# If we have RT capability, get the realtime module ready
if [ $REALTIME ]; then
echo "Configuring realtime module"
JACKD="$JACKDRT -R"
rmmod capability
rmmod commoncap
modprobe realcap any=1 allcaps=1
fi

##############################################################################
case "$1" in
start)
##########################################################################
# Create FIFOs if needed
if [ ! -p $SDR_PARMPATH ]; then
mkfifo $SDR_PARMPATH
fi

if [ ! -p $SDR_METERPATH ]; then
mkfifo $SDR_METERPATH
fi

if [ ! -p $SDR_SPECPATH ]; then
mkfifo $SDR_SPECPATH
fi

##########################################################################
# Sanity check
if [ ! -p $SDR_PARMPATH ]; then
echo "Error while creating $SDR_PARMPATH fifo"
exit 1
fi

if [ ! -p $SDR_METERPATH ]; then
echo "Error while creating $SDR_METERPATH fifo"
exit 1
fi

if [ ! -p $SDR_SPECPATH ]; then
echo "Error while creating $SDR_SPECPATH fifo"
exit 1
fi

##########################################################################
# Make sure jack and dttsp are not already running
TMP=`ps -ef | grep jack | grep -v grep | wc -l`
if [ ! $TMP == 0 ]; then
echo "jackd is already running. Stopping..."
exit 1
fi

TMP=`ps -ef | grep sdr-core | grep -v grep | wc -l`
if [ ! $TMP == 0 ]; then
echo "sdr-core is already running. Stopping..."
exit 1
fi

##########################################################################
# Start jackd
echo "> Starting jack..."

if [ "$SND_DRIV" == "oss" ]; then
$JACKD -d oss -P $HOUT -C $HIN -r $SDR_DEFRATE -p128 -n2 &
elif [ "$SND_DRIV" == "alsa" ]; then
$JACKD -d alsa -d$ALSAH -r$SDR_DEFRATE -p1024 -n2 &
elif [ "$SND_DRIV" == "freebob" ]; then
echo "> freebob starting"
$JACKD -d freebob -r $SDR_DEFRATE -p1024 -n 2 &
fi
JACKD_PID=$!
if [ $JACKD_PID ]
then
echo $JACKD_PID > /var/run/jackd.pid
echo " Succeeded. JackD PID is $JACKD_PID"
else
echo " Failed"
exit 1
fi

##########################################################################
# Needed in some systems
sleep 1

##########################################################################
# Start dttsp
echo "> Starting dttsp..."
cd $DTTSP
$DTTSP/sdr-core -s -m &
DTTSP_PID=$!
JACKD_PID=$!
if [ $DTTSP_PID ]
then
echo $DTTSP_PID > /var/run/sdr-core.pid
echo " Succeeded. DttSP PID is $DTTSP_PID"
else
echo " Failed"
exit 1
fi

##########################################################################
# Connect the jack ports

if [ "$SND_DRIV" == "oss" ]; then
echo "> Connecting dttsp to jack..."
sleep 3
echo " sdr-$DTTSP_PID:ol -> oss:playback_1"
$JACKC sdr-$DTTSP_PID:ol oss:playback_1
echo " sdr-$DTTSP_PID:or -> oss:playback_2"
$JACKC sdr-$DTTSP_PID:or oss:playback_2
echo " oss:capture_1 -> sdr-$DTTSP_PID:il"
$JACKC oss:capture_1 sdr-$DTTSP_PID:il
echo " oss:capture_2 -> sdr-$DTTSP_PID:ir"
$JACKC oss:capture_2 sdr-$DTTSP_PID:ir
elif [ "$SND_DRIV" == "alsa" ]; then
echo "> Connecting dttsp to jack..."
sleep 3
echo " sdr-$DTTSP_PID:ol -> alsa_pcm:playback_1"
$JACKC sdr-$DTTSP_PID:ol alsa_pcm:playback_1
echo " sdr-$DTTSP_PID:or -> alsa_pcm:playback_2"
$JACKC sdr-$DTTSP_PID:or alsa_pcm:playback_2
echo " alsa_pcm:capture_1 -> sdr-$DTTSP_PID:il"
$JACKC alsa_pcm:capture_1 sdr-$DTTSP_PID:il
echo " alsa_pcm:capture_2 -> sdr-$DTTSP_PID:ir"
$JACKC alsa_pcm:capture_2 sdr-$DTTSP_PID:ir
elif [ "$SND_DRIV" == "freebob" ]; then
echo "> Connecting dttsp to FireBox"
sleep 3
echo " sdr-$DTTSP_PID:ol -> freebob_pcm:dev1p_MainOut 1+2 left"
$JACKC sdr-$DTTSP_PID:ol "freebob_pcm:dev1p_MainOut 1+2 left"
echo " sdr-$DTTSP_PID:or -> freebob_pcm:dev1p_MainOut 1+2 right"
$JACKC sdr-$DTTSP_PID:or "freebob_pcm:dev1p_MainOut 1+2 right"
echo " freebob_pcm:dev1c_LineIn 3+4 left -> sdr-$DTTSP_PID:il"
$JACKC "freebob_pcm:dev1c_LineIn 3+4 left" sdr-$DTTSP_PID:il
echo " freebob_pcm:dev1c_LineIn 3+4 right -> sdr-$DTTSP_PID:ir"
$JACKC "freebob_pcm:dev1c_LineIn 3+4 right" sdr-$DTTSP_PID:ir
fi

;;
stop)
JACKD_PID=`cat /var/run/sdr-core.pid`
DTTSP_PID=`cat /var/run/jackd.pid`
kill -9 $JACKD_PID $DTTSP_PID
;;
##############################################################################
# Give up
*)
echo "Usage: $0 {start|stop}" >&2
exit 1
;;
esac

exit 0