#! /bin/sh -e

# Check for daemon presence
test -x /usr/sbin/acpid || exit 0

# Check for ACPI support on kernel side
[ -d /proc/acpi ] || exit 0

# Include acpid defaults if available
OPTIONS=""
if [ -f /etc/default/acpid ] ; then
	. /etc/default/acpid
fi

# Get lsb functions
. /lib/lsb/init-functions
. /etc/default/rcS

if [ "x$VERBOSE" = "xno" ]; then
        MODPROBE_OPTIONS="$MODPROBE_OPTIONS -Q"
        export MODPROBE_OPTIONS
fi

# As the name says. If the kernel supports modules, it'll try to load
# the ones listed in "MODULES".
load_modules() {
        PRINTK=`cat /proc/sys/kernel/printk`
        [ "$VERBOSE" = no ] && echo "0 0 0 0" > /proc/sys/kernel/printk
        
        LIST=`/sbin/lsmod|awk '!/Module/ {print $1}'`

	# Get list of available modules
        LOC="/lib/modules/`uname -r`/kernel/drivers/acpi"
        if [ -d $LOC ]; then
	  MODAVAIL=`( find $LOC -type f -name "*.o" -printf "basename %f .o\n"; \
		find $LOC -type f -name "*.ko" -printf "basename %f .ko\n" ) | /bin/sh`
	else
	  MODAVAIL=""
	fi

        if [ "$MODULES" = "all" ]; then
		MODULES="$MODAVAIL"
        fi

	if [ -n "$MODULES" ]; then
		log_begin_msg "Loading ACPI modules..."
		STATUS=0
	        for mod in $MODULES; do
			echo $MODAVAIL | grep -q -w "$mod" || continue
		        if echo $LIST | grep -q -w "$mod"; then
				[ "$VERBOSE" != no ] && log_success_msg "Module already loaded: $mod"
			else
				if modprobe $mod 2>/dev/null; then
					[ "$VERBOSE" != no ] && log_success_msg "Loaded module: $mod"
				else
					if [ "$VERBOSE" != no ]; then
						log_warning_msg "Unable to load module: $mod"
					fi
				fi
			fi		
	        done
		log_end_msg $STATUS
	fi
        echo "$PRINTK" > /proc/sys/kernel/printk
}

case "$1" in
  start)
    [ -f /proc/modules ] && load_modules
    log_begin_msg "Starting ACPI services..."
    start-stop-daemon --start --quiet --exec /usr/sbin/acpid -- -c /etc/acpi/events $OPTIONS
    log_end_msg $?
    ;;
  stop)
    log_begin_msg "Stopping ACPI services..."
    start-stop-daemon --stop --quiet --oknodo --retry 2 --exec /usr/sbin/acpid
    log_end_msg $?
    ;;
  restart)
    $0 stop
    sleep 1
    $0 start
    ;;
  reload|force-reload) 
    log_begin_msg "Reloading ACPI services..."
    start-stop-daemon --stop --signal 1 --exec /usr/sbin/acpid
    log_end_msg $?
    ;;
  *)
    log_success_msg "Usage: /etc/init.d/acpid {start|stop|restart|reload|force-reload}"
    exit 1
esac

exit 0
