#!/bin/sh

export TUXONICE_LOC
# TODO tuxonice supports all sorts of knobs to twiddle. Since this should be as
# simple as possible, it does not provide a mechanism for twiddling those knobs.
# If you need more customization than this file has, consider using a hook to
# set the appropriate values.

# more locations might be nice
for loc in "/sys/power/tuxonice" "/sys/power/suspend2"; do
	[ -d "${loc}" ] && { TUXONICE_LOC="${loc}"; break; }
done 

if [ -z "$HIBERNATE_MODULE" -a -n "$TUXONICE_LOC" ] && \
	[ -f "${TUXONICE_LOC}/do_hibernate" ]; then
	HIBERNATE_MODULE="tuxonice"
	do_hibernate()
	{
		echo 5 > "${TUXONICE_LOC}/powerdown_method"
		echo anything > "${TUXONICE_LOC}/do_hibernate"
	}
fi

if [ -z "$SUSPEND_HYBRID_MODULE" -a -n "$TUXONICE_LOC" ] && \
	grep -q mem /sys/power/state && \
	[ -f "${TUXONICE_LOC}/do_hibernate" ]; then
	SUSPEND_HYBRID_MODULE="tuxonice"
	do_suspend_hybrid()
	{
		echo 3 >"${TUXONICE_LOC}/powerdown_method"
		echo anything >"${TUXONICE_LOC}/do_hibernate"
		[ -f /sys/power/tuxonice/did_suspend_to_both ] && \
	    	[ "$(cat /sys/power/tuxonice/did_suspend_to_both)" != "1" ] && \
	    	REVERSE="thaw"
	}
fi