#!/bin/sh

. bootrr

TEST_CASE_ID="$1"
COUNT="$2"
VENDOR="$3"
PRODUCT="$4"
DEVICE="$5"
DEV_CLASS="$6"
DEV_SUBCLASS="$7"
DEV_PROTOCOL="$8"
INTF_CLASS="$9"
INTF_SUBCLASS="${10}"
INTF_PROTOCOL="${11}"
INTF_NUM="${12}"

if [ -z "${TEST_CASE_ID}" -o -z "${COUNT}" -o -z "${VENDOR}" ]; then
	echo "Usage: $0 <test-case-id> <count> <vendor> [<product> <device> <device-class> <device-subclass> <device-protocol> <interface-class> <interface-subclass> <interface-protocol> <interface-number>]"
	echo "Note: '*' can be used as wildcard for any field"
	exit 1
fi

match()
{
	FILE="$1"
	ID="$2"

	[ ! -f "$FILE" ] && return 1
	[ "$ID" = "*" -o "$ID" = "" ] && return 0
	[ $(cat "$FILE") != "$ID" ] && return 1
	return 0
}

cur_count=0

for dev in $(find /sys/bus/usb/devices -maxdepth 1); do
	match "$dev"/idVendor "$VENDOR" || continue
	match "$dev"/idProduct "$PRODUCT" || continue
	match "$dev"/bcdDevice "$DEVICE" || continue
	match "$dev"/bDeviceClass "$DEV_CLASS" || continue
	match "$dev"/bDeviceSubClass "$DEV_SUBCLASS" || continue
	match "$dev"/bDeviceProtocol "$DEV_PROTOCOL" || continue

	# Matched device. Now search through interfaces
	for intf in $(find "$dev"/ -maxdepth 1 -type d); do
		match "$intf"/bInterfaceClass "$INTF_CLASS" || continue
		match "$intf"/bInterfaceSubClass "$INTF_SUBCLASS" || continue
		match "$intf"/bInterfaceProtocol "$INTF_PROTOCOL" || continue
		match "$intf"/bInterfaceNumber "$INTF_NUM" || continue

		# Matched interface. Add to count if it was probed by driver.
		[ -d "$intf"/driver ] && cur_count=$((cur_count+1))
	done
done

if [ "$cur_count" -eq "$COUNT" ]; then
	test_report_exit pass
else
	test_report_exit fail
fi