# -*- sh -*-
# vim:ft=sh:ts=4:sw=4:noet
# Written by Konstantin S. Ivanov ksiv AT yandex D_O_T ru 
# Based on 
# Written by dotCOMmie. With Special thanks to eworm.
# Based on DirkHusemann's kded script.

# This script is to automate an alsa hibernate workaround 
# Look for more info:
# https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.17/+bug/25896

# How it works:
# On hibernate this unloads alsa service 
# On resume it restarts it 

# Installation:
# Put script into your scriptlets.d dir (/etc/hibernate/scriptlets.d/)
# add "EnableALSAHack 1" to common.conf

AddConfigHandler ALSAOptions 
AddConfigHelp "EnableIALSAHack <boolean>" "Brings sounds back"

ALSAResume() {
	[ x"$ALSA_ENABLED" = "x1" ] || return 0
	return 0
}
ALSASuspend(){
	[ x"$ALSA_ENABLED" = "x1" ] || return 0
	/etc/init.d/alsa unload
	return 0
}

ALSAOptions() {
	case $1 in
		enablealsahack)
			BoolIsOn "$1" "$2" && ALSA_ENABLED=1 || return 0
			;;
		*)
		return 1
	esac

	if [ -z "$ALSA_HOOKED" ] ; then
		AddSuspendHook 01 ALSASuspend
		AddResumeHook 01 ALSAResume
		ALSA_HOOKED=1
	fi

	return 0
}