#!/sbin/runscript
# Copyright 2009 Luke Dashjr <luke_n8x0_gps5300driver@dashjr.org>
# Licensed for redistribution as-is;
# contact me if you want something more permissive

GPS5300_DRIVER='/usr/sbin/gps5300driver'
GPS5300_PIDFILE='/var/run/gps5300driver.pid'
GPS5300_PRELOAD='/usr/lib/libgps5300faker.so'

depend() {
	need dbus
	before gpsd
}

start() {
	ebegin "Starting GPS5300 driver"
	if [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
		unset GPS5300_CMD_{INIT,QUIT,{,DE}ACTIVATE_{RESET,WAKEUP}}
	else
		if [ -z "${GPS5300_CMD_ACTIVATE_RESET}" ]; then
			eend 1 'gps_reset state gpio switch missing; you need to set GPS5300_CMD_{,DE}ACTIVATE_{RESET,WAKEUP}'
			return
		fi
		export GPS5300_CMD_{,DE}ACTIVATE_{RESET,WAKEUP}
	fi
	
	[ -z "${GPS5300_SELFINIT}" ] && GPS5300_SELFINIT=true
	${GPS5300_SELFINIT} || unset GPS5300_SELFINIT
	export GPS5300_SELFINIT
	
	[ -z "${GPS5300_USER}" ] && GPS5300_USER=root
	export GPS5300_USER
	
	[ -z "${GPS5300_NICE}" ] && GPS5300_NICE=0
	
	[ -z "${GPS5300_CMD_INIT}" ] || eval "${GPS5300_CMD_INIT}"
	
	start-stop-daemon --start \
		--quiet \
		--background \
		--pidfile "${GPS5300_PIDFILE}" \
		--make-pidfile \
		--env "LD_PRELOAD=${GPS5300_PRELOAD}" \
		--nicelevel "${GPS5300_NICE}" \
		--exec "${GPS5300_DRIVER}"
	eend $?
}

stop() {
	if [ -e /sys/devices/platform/gpio-switch/gps_reset/state ]; then
		unset GPS5300_CMD_QUIT
	fi
	ebegin "Stopping GPS5300 driver"
	start-stop-daemon --stop \
		--quiet \
		--pidfile "${GPS5300_PIDFILE}"
	rv="$?"
	[ -z "${GPS5300_CMD_QUIT}" ] || eval "${GPS5300_CMD_QUIT}"
	eend $rv
}