#!/bin/bash

PROG="$1"

case "$PROG" in
	suspend|standby)
	;;
	resume|start)
		if apm |grep on-line &>/dev/null; then
			logger -i -p local0.info -t apm Setting disk apm mode to 0xFF on $PROG
			hdparm -B 255 /dev/hda > /dev/null
		else
			logger -i -p local0.info -t apm Setting disk apm mode to 0x01 on $PROG
			hdparm -B 1 /dev/hda > /dev/null
		fi
	;;
	change)
		case $2 in
			power)  
				# change in power status
				if apm |grep on-line &>/dev/null; then
					logger -i -p local0.info -t apm Setting disk apm mode to 0xFF on change to AC
					hdparm -B 255 /dev/hda > /dev/null
				else
					logger -i -p local0.info -t apm Setting disk apm mode to 0x01 on change to battery
					hdparm -B 1 /dev/hda > /dev/null
				fi
			;;
			battery)
				# battery low
				logger -i -p local0.info -t apm Battery is low. Do something\!
			;;
			*)
				logger -i -p local0.info -t apm Unknown message: change to $2
			;;
	        esac
	;;
	*)
		logger -i -p local0.info -t apm Unknown message: $PROG
	;;
esac