#!/bin/sh

# Linux GPIOs on XBee lines
XBEE_RESET_N_GPIO="##XBEE_RESET_N_GPIO##"
XBEE_SLEEP_RQ_GPIO="##XBEE_SLEEP_RQ_GPIO##"

# 1=chip name
# 2=gpio offset
xbee_reset() {
	# Power cycle XBEE_RESET_N
	gpioset "${1}" "${2}"=0
	gpioset "${1}" "${2}"=1
}

# 1=chip name
# 2=gpio offset
xbee_no_sleep() {
	# Set low XBEE_SLEEP_RQ
	gpioset "${1}" "${2}"=0
}

xbee_iterate_list() {
	for SLEEP in $(echo ${XBEE_SLEEP_RQ_GPIO} | sed "s/,/ /g"); do
		# Do not quote command expansion (function expects two parameters)
		xbee_no_sleep $(echo "${SLEEP}" | sed "s/@/ /g")
	done

	for RESET in $(echo ${XBEE_RESET_N_GPIO} | sed "s/,/ /g"); do
		# Do not quote command expansion (function expects two parameters)
		xbee_reset $(echo "${RESET}" | sed "s/@/ /g")
	done
}

case "$1" in
	start)
		echo -n "Starting XBee hardware: "
		xbee_iterate_list
		echo "done."
		;;
	stop)
		;;
	restart)
		$0 stop
		sleep 1
		$0 start
		;;
	*)
		echo "Usage: $0 {start|stop|restart}"
		exit 1
		;;
esac