#!/bin/sh
#------------------------------------------------------------------------------
# /etc/rc.d/rc995.hwsupp - init buttons                            __FLI4LVER__
#
# Creation:     11.10.2014 cspiess
# Last Update:  $Id$
#------------------------------------------------------------------------------

if [ "$OPT_HWSUPP" = "yes" ]
then

    # init buttons
    if [ 0$HWSUPP_BUTTON_N -gt 0 ]
    then
        begin_script HWSUPP "init buttons"

        hwsuppd_args=
        for i in `seq 1 $HWSUPP_BUTTON_N`
        do
            eval device=\$HWSUPP_BUTTON_${i}_DEVICE
            type=${device%%:*}
            case $type in
                /gpio|gpio)
                    if [ "$type" = "/gpio" ]
                    then
                        activelow=1
                    else
                        activelow=0
                    fi

                    gpio=`echo $device | cut -d ':' -f 3`
                    echo $gpio > /sys/class/gpio/export
                    gpio_path=

                    if [ -d /sys/class/gpio/gpio$gpio ]
                    then
                        gpio_path=/sys/class/gpio/gpio$gpio
                    elif [ -d /sys/class/gpio/GPIO$gpio ]
                    then
                        # this special treatment is necessary for the
                        # gpio-cs5535 driver :-/
                        gpio_path=/sys/class/gpio/GPIO$gpio
                    fi

                    if [ -n "$gpio_path" ]
                    then
                        echo in > $gpio_path/direction
                        echo $activelow > $gpio_path/active_low
                        hwsuppd_args="$hwsuppd_args -g $gpio_path/value"
                    else
                        log_error "GPIO pin $gpio not found"
                    fi
                ;;
                evdev)
                    eval key=\$HWSUPP_BUTTON_${i}_DEVICE_KEY

                    phys=${device#*:}
                    driver=${phys%%/*}
                    do_modprobe -q $driver
                    res=$?

                    found=
                    for inputdev in /dev/input/event*
                    do
                        path=$(find /sys/devices -regex ".*/input[0-9]\+/${inputdev##*/}")
                        if [ -n "$path" ]
                        then
                            read found < "${path%/*}/phys"
                            [ "$phys" = "$found" ] && break
                            found=
                        fi
                    done

                    if [ -n "$found" ]
                    then
                        hwsuppd_args="$hwsuppd_args -e $inputdev:$key"
                    elif [ $res -ne 0 ]
                    then
                        log_error "EVDEV: physical path $phys could not be matched to input device (loading driver $driver failed)"
                    else
                        log_error "EVDEV: physical path $phys could not be matched to input device"
                    fi
                ;;
            esac
        done

        # write hwsupp_cmd
        {
            echo "#!/bin/sh"
            echo "case \$1 in"
            for i in `seq 1 $HWSUPP_BUTTON_N`
            do 
                eval action=\$HWSUPP_BUTTON_${i}
                eval param=\"\$HWSUPP_BUTTON_${i}_PARAM\"
                echo "$i)"
                if [ "$action" = "user" ]
                then
                    echo "$param"
                else
                    echo /usr/bin/${action}_keyprog $param
                fi
                echo ";;"
            done
            echo "esac"
        }  > /usr/bin/hwsupp_cmd
        chmod +x /usr/bin/hwsupp_cmd
        
        log_info "starting hardware support daemon ..."
        hwsuppd $hwsuppd_args
        
        end_script

    fi # init buttons

fi