#!/bin/sh
#
# Copyright (c) 2012-2015,2017,2020, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of The Linux Foundation nor the names of its
#       contributors may be used to endorse or promote products derived from
#       this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE DISCLAIMED.  IN NO
# EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# DESCRIPTION: DIAG + ADB + MODEM + NMEA + QMI_RMNET + Mass Storage (Android)

echo "Switching to composition number 0x9025" > /dev/kmsg

if [ "$1" = "y" ]; then
	num="1"
else
	num="0"
fi

if [ "$#" -ge 2 ]; then
	delay=$2
else
	delay="0"
fi

if [ "$#" -ge 3 ]; then
	from_adb=$3
else
	from_adb="n"
fi

run_9x15() {
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 0x9025 > /sys/class/android_usb/android$num/idProduct
	echo 0x05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo smd,tty > /sys/class/android_usb/android0/f_serial/transports
	echo SMD,BAM2BAM > /sys/class/android_usb/android0/f_rmnet/transports
	echo diag,adb,serial,rmnet,mass_storage > /sys/class/android_usb/android$num/functions
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
}

run_9x25() {
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 0x9025 > /sys/class/android_usb/android$num/idProduct
	echo 0x05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo smd,tty > /sys/class/android_usb/android0/f_serial/transports
	echo SMD,BAM2BAM_IPA > /sys/class/android_usb/android0/f_rmnet/transports
	echo diag,adb,serial,rmnet,mass_storage > /sys/class/android_usb/android$num/functions
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
}

run_9x25_v2() {
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 0x9025 > /sys/class/android_usb/android$num/idProduct
	echo 0x05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo smd,tty > /sys/class/android_usb/android0/f_serial/transports
	echo QTI,BAM2BAM_IPA > /sys/class/android_usb/android0/f_rmnet/transports
	echo diag,adb,serial,rmnet,mass_storage > /sys/class/android_usb/android$num/functions
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
}

run_9x35() {
	if [ $from_adb = "n" ]
	then
		pkill adbd
	fi
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 9025 > /sys/class/android_usb/android$num/idProduct
	echo 05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo smd,tty > /sys/class/android_usb/android0/f_serial/transports
	echo QTI,BAM2BAM_IPA > /sys/class/android_usb/android0/f_rmnet/transports
	echo diag,ffs,serial,rmnet,mass_storage > /sys/class/android_usb/android$num/functions
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
	if [ $from_adb = "n" ]
	then
		/etc/launch_adbd start
	fi
}

run_9607() {
	if [ $from_adb = "n" ]
	then
		pkill adbd
	fi
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 9025 > /sys/class/android_usb/android$num/idProduct
	echo 05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo smd,tty > /sys/class/android_usb/android0/f_serial/transports
	echo QTI,BAM_DMUX > /sys/class/android_usb/android0/f_rmnet/transports
	echo diag,ffs,serial,rmnet,mass_storage > /sys/class/android_usb/android$num/functions
	echo 1 > /sys/class/android_usb/android$num/remote_wakeup
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
	if [ $from_adb = "n" ]
	then
		/etc/launch_adbd start
	fi
}

run_9650() {
	if [ $from_adb = "n" ]
	then
		pkill adbd
	fi
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 9025 > /sys/class/android_usb/android$num/idProduct
	echo 05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo smd,tty > /sys/class/android_usb/android0/f_serial/transports
	echo diag,ffs,serial,rmnet_gsi,mass_storage > /sys/class/android_usb/android$num/functions
	echo 1 > /sys/class/android_usb/android$num/remote_wakeup
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
	if [ $from_adb = "n" ]
	then
		/etc/launch_adbd start
	fi
}

run_sdx20() {
	if [ $from_adb = "n" ]
	then
		pkill adbd
	fi
	echo 0 > /sys/class/android_usb/android$num/enable
	echo 9025 > /sys/class/android_usb/android$num/idProduct
	echo 05C6 > /sys/class/android_usb/android$num/idVendor
	echo diag > /sys/class/android_usb/android0/f_diag/clients
	echo char_bridge,tty > /sys/class/android_usb/android0/f_serial/transports
	echo diag,ffs,serial,rmnet_gsi,mass_storage > /sys/class/android_usb/android$num/functions
	echo 1 > /sys/class/android_usb/android$num/remote_wakeup
	sleep $delay
	echo 1 > /sys/class/android_usb/android$num/enable
	if [ $from_adb = "n" ]
	then
		/etc/launch_adbd start
	fi
}

run_configfs() {
	echo start > /data/usb_bind_in_progress
	if [ $from_adb = "n" ]
	then
		pkill adbd
		# Give enough time to restart ADBD and open EP0 file node
		sleep 1
	fi
	cd /sys/kernel/config/usb_gadget/g1
	rm os_desc/c* 2> /dev/null
	rm configs/c*/f* 2> /dev/null
	rm -rf configs/c.2 configs/c.3 2> /dev/null
	echo 0x05c6 > idVendor
	echo 0x9025 > idProduct
	echo "DIAG_ADB_DUN_NMEA_RMNET_MSC" > configs/c.1/strings/0x409/configuration
	ln -s functions/diag.diag configs/c.1/f0
	ln -s functions/ffs.adb configs/c.1/f1
	if [ -f /etc/data/usb/softap_w_dun ]
	then
		SOFTAP_W_DUN=`cat /etc/data/usb/softap_w_dun`
	fi
	if [ "$SOFTAP_W_DUN" == "Y" ]
	then
		ln -s functions/gser.0 configs/c.1/f2
	else
		ln -s functions/cser.dun.0 configs/c.1/f2
	fi
	ln -s functions/cser.nmea.1 configs/c.1/f3
	ln -s functions/$2.rmnet configs/c.1/f4
	ln -s functions/mass_storage.0 configs/c.1/f5
	echo 0xA0 > configs/c.1/bmAttributes
	rm -f /data/usb_bind_in_progress
	echo "binding UDC with Gadget..." $1
	echo $1 > UDC
	cd /
}

case `source /sbin/usb/target` in
	*9x15* )
		run_9x15 &
		;;
	*9x25* )
		case `cat /sys/devices/soc0/revision` in
			*1.0* )
				run_9x25 &
				;;
			*2.* )
				run_9x25_v2 &
				;;
			* )
				run_9x25 &
				;;
		esac
		;;
	*9x35* )
		run_9x35 &
		;;
	*9607* )
		run_9607 &
		;;
	*8909* )
		echo "This composition can't be supported on 8909"
		;;
        *8096* )
		udcname="6a00000.dwc3"
		if [ -f /sys/class/android_usb/android$num/enable ]; then
			run_9x35 &
		else
			xport="rmnet_bam"
			run_configfs $udcname $xport &
		fi
                ;;
	*9640* )
		run_9x35 &
		;;
	*9650* )
		run_9650 &
		;;
	*sdx20* )
		run_sdx20 &
		;;
	*sdxpoorwills* | *sm8150* | *sdxprairie* | *sdxnightjar* )
		udcname=`ls -1 /sys/class/udc | head -n 1`
		xport="gsi"
		run_configfs $udcname $xport &
		;;
	* )
		run_9650 &
		;;
esac
