#!/bin/sh

# Copyright (c) 2000-2002 Massachusetts Institute of Technology
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or (at
# your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

set -e

LONGRUN=/usr/bin/longrun
[ -x "${LONGRUN}" ] || exit 0

power_conserve ()
{
    # Set longrun to "economy" mode.
#    "${LONGRUN}" -s 0 $PERCENTAGE || true
#    "${LONGRUN}" -s 0 64 || true
    "${LONGRUN}" -s 0 100 || true
    "${LONGRUN}" -f economy || true
# enable Longrun Thermal Extensions
#    /sbin/setpci -v -s 0:0.0 a8.b=11
}

power_performance ()
{
    # Set longrun to "performance" mode.
    "${LONGRUN}" -s 100 100 || true
    "${LONGRUN}" -f performance || true
# disable Longrun Thermal Extensions (cpu throttling should be enough)
#    /sbin/setpci -v -s 0:0.0 a8.b=0e
}

choose_power ()
{
    PERCENTAGE=`cat /proc/apm | sed -e "s/.* \(.*%\).*/\1/"`
    if on_ac_power > /dev/null
    then
	power_performance
    else
	power_conserve
    fi
}

if [ "${1}" = "start" ]; then
    choose_power
elif [ "${1}" = "resume" ] && [ "${2}" != "standby" ]; then
    choose_power
elif [ "${1},${2}" = "change,power" ]; then
    choose_power
elif [ "${1}" = "stop" ]; then
    power_performance
fi

exit 0