#! /bin/sh
#
# Copyright (c) 2011, The Linux Foundation. All rights reserved.
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# adbd        init.d script to start the Android debug bridge daemon

set -e

if [ -f /etc/default/adbd ]; then
        . /etc/default/adbd
fi

case "$1" in
  start)
        echo -n "Starting adbd: "
        start-stop-daemon -S -b -a /sbin/adbd
        # Check first if the /etc/adb_devid already has an id saved from earlier boot up.
        # If yes use it to retrieve adb devices else use the msm ID and save it to /etc/adb_devid for subsequent boot ups.

        if [ -e "/etc/adb_devid" ]
        then
                cat /etc/adb_devid > /sys/class/android_usb/android0/iSerial
        else
                ret_val=`cat /proc/cmdline | grep "androidboot.serialno" |wc -l`
                if  [ $ret_val -eq 1 ]
                then
                    serial_no=`cat /proc/cmdline | awk '{ for ( n=1; n<=NF; n++ ) if($n ~ "androidboot.serial") print $n }' | awk '{split($0,a, "=");print a[2]}'`
                    echo $serial_no > /sys/class/android_usb/android0/iSerial
                else
                    cat /proc/sys/kernel/random/boot_id | cut -d- -f5 > /sys/class/android_usb/android0/iSerial
                fi
                    cat /sys/class/android_usb/android0/iSerial > /etc/adb_devid
        fi
        echo "done"
        ;;
  stop)
        echo -n "Stopping adbd: "
        start-stop-daemon -K -n adbd
        echo "done"
        ;;
  restart)
        $0 stop
        $0 start
        ;;
  *)
        echo "Usage adbd { start | stop | restart}" >&2
        exit 1
        ;;
esac

exit 0