# Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause-Clear

# DESCRIPTION: ADB

echo "Switching to composition number 0x4EE7"  > /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_configfs() {
	echo start > /data/usb_bind_in_progress
	if [ $from_adb = "n" ]
	then
		killall 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 0x18D1 > idVendor
	echo 0x4EE7 > idProduct
	echo "ADB" > configs/c.1/strings/0x409/configuration
	ln -s functions/ffs.adb configs/c.1/f1
	rm -f /data/usb_bind_in_progress
	echo 0x80 > configs/c.1/bmAttributes
	echo "binding UDC with Gadget..." $1
	echo $1 > UDC
	cd /
}

udcname=`ls -1 /sys/class/udc | head -n 1`
run_configfs $udcname &
