#!/bin/sh

# js-set-enum-leds: Set gamepad enumerator LEDS to match the js device number.

# Copyright © 2014 bri <bri@abrij.org>
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.


# If the gamepad/joystick is bluetooth-capable, bluez may set the leds
# even before the gamepad is connected.  In these cases please match what
# bluez will do (or may already have done if it is already running.)

# If the set_gamepad_leds function provided for convenience is to be used
# for a particular type of gamepad, the udev rule should provide the following
# postional parameters.  See /lib/udev/rules.d/60-joystick for examples.

# A partial path string containing the common part of the names of affected
# led-class sysfs directories.
LEDGLOB=$1
# The number of the js device.  These start at 0 but enumerator LEDs are
# 1-based. (Having at least one LED on lets user see controller is on.)
JSNUM=$2

set_gamepad_leds() {
	for led in "$LEDGLOB"*; do
		if [ -d $led ] && [ -w $led/brightness ] && [ "$1" ]; then
			echo $1 > $led/brightness
			shift 1
	        else
			echo "set_gamepad_leds: wrong number of leds or values" 1>&2
			exit -1
		fi
	done
}

# In addition it is assumed ID_MODEL will have been set appropriately by udev
# This is used to select the appropriate actions for the particular model.

case $ID_MODEL in
	PLAYSTATION_R_3_Controller)
		case $JSNUM in
			0) set_gamepad_leds 1 0 0 0;
			;;
			1) set_gamepad_leds 0 1 0 0;
			;;
			2) set_gamepad_leds 0 0 1 0;
			;;
			3) set_gamepad_leds 0 0 0 1;
			;;
			4) set_gamepad_leds 1 0 0 1;
			;;
			5) set_gamepad_leds 0 1 0 1;
			;;
			6) set_gamepad_leds 0 0 1 1;
			;;
			*) set_gamepad_leds 0 0 0 0;
			;;
		esac
		;;
	*) echo "called with no matching model" 1>&2
esac