#!/bin/sh

case $# in
1)
	dev="$1"
	;;
*)
	echo "Usage: $0 <device>"
	exit 1;
	;;
esac

while true; do
	echo 'C 1' > $dev

	echo -n "Generating RF carrier. Please enter measured frequency [enter for done]: "

	read FREQ

	echo 'C 0' > $dev

	calline=`./get-radio-cal $dev`
	CURRENT_CAL=`echo $calline | awk '{print $2}'`
	CURRENT_FREQ=`echo $calline | awk '{print $4}'`
	CAL_VALUE=$CURRENT_CAL

	case "$FREQ" in
	"")
		echo $SERIAL","$CAL_VALUE >> cal_values
		exit 0
		;;
	*)
		echo "Current radio calibration "$CURRENT_CAL
		echo "Current radio frequency "$CURRENT_FREQ

		CAL_VALUE=`nickle -e "floor($CURRENT_FREQ / $FREQ * $CURRENT_CAL + 0.5)"`

		echo "Programming flash with cal value " $CAL_VALUE

		dd if=$dev iflag=nonblock

		cat << EOF > $dev
c f $CAL_VALUE
c w
EOF

		echo "Serial number "$SERIAL" programmed with RF cal value "$CAL_VALUE
		;;
	esac
done