#!/bin/bash
#
#       /etc/rc.d/init.d/tp_smapi
#
# Load tp_smapi kernel driver and apply settings
#
# chkconfig: 345 10 90
# description: Load tp_smapi kernel driver and apply settings
# processname:

### BEGIN INIT INFO
# Provides: tp_smapi
# Required-Start: $syslog $local_fs
# Required-Stop: $syslog $local_fs
# Default-Start:  2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: load and set up tp_smapi
# Description: Load tp_smapi kernel driver and apply settings
### END INIT INFO

# TODO: Make sure this script's startup runs after akmod's startup

# Source function library.
. /etc/rc.d/init.d/functions

RETVAL=0
CONFIG=/etc/sysconfig/tp_smapi

# Source function library.
. /etc/rc.d/init.d/functions

load_modules() {
    echo -n "Loading tp_smapi driver module"
    if modprobe tp_smapi; then
	success "Loading tp_smapi driver module"
    else
	failure "Loading tp_smapi driver module"
        RETVAL=2
    fi
    echo
}

unload_modules() {
    mdoules="tp_smapi thinkpad_ec"
    echo -n "Unloading driver modules ${modules}"
    if modprobe -r tp_smapi && modprobe -r thinkpad_ec; then
	success "Unloading driver modules ${modules}"
    else
	failure "Unloading driver modules ${modules}"
        RETVAL=2
    fi
    echo
}

smapi_config() {
    if [ -s "$CONFIG" ]; then
	. "$CONFIG"
	dirty=false
	cd /sys/devices/platform/smapi
	echo -n "Configuring tp_smapi battery settings"
	for bat in BAT*; do
	    if test -d "$bat"; then
		if [ "x$START_CHARGE_THRESH" != x ]; then
		    echo "$START_CHARGE_THRESH" > "$bat/start_charge_thresh"
		fi
		if [ "x$STOP_CHARGE_THRESH" != x ]; then
		    echo "$STOP_CHARGE_THRESH" > "$bat/stop_charge_thresh"
		fi
	    else
		dirty=true
		break
	    fi
	done
	if "$dirty"; then
	    passed "No tp_smapi battery settings"
	else
	    success "Configured tp_smapi battery settings"
	fi
        echo
    fi
}

is_loaded() {
    if /sbin/lsmod | grep '^tp_smapi ' > /dev/null; then
	echo -n "tp_smapi settings:"
	cd /sys/devices/platform/smapi
	for bat in BAT*; do
	    if [ -d "$bat" ] && [ "$(<$bat/installed)" -eq 1 ]; then
		echo -n " $bat($(<$bat/remaining_percent)%, $(<$bat/start_charge_thresh)%..$(<$bat/stop_charge_thresh)%)"
	    fi
	done
	echo
    else
	echo "tp_smapi driver is not loaded"
	return 2
    fi
}

case "$1" in
force-reload)
	echo "$0: Unimplemented feature."
	RETVAL=3
	;;
start)
	load_modules
	smapi_config
	;;
reload|restart|force-reload)
	unload_modules
	load_modules
	smapi_config
	;;
condrestart)
	if is_loaded; then
	    unload_modules
	    load_modules
	    smapi_config
	fi
	;;
stop)
	unload_modules
	;;
status)
	is_loaded
	RETVAL=$?
	;;
*)
	echo $"Usage: $0 {start|stop|status|restart|condrestart|reload|force-reload}"
        RETVAL=2
esac

exit $RETVAL