1 /*
2 * Copyright (C) 2017 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <android-base/logging.h>
18 #include "usb.h"
19
usb_init()20 void usb_init() {
21 if (should_use_libusb()) {
22 LOG(DEBUG) << "using libusb backend";
23 libusb::usb_init();
24 } else {
25 LOG(DEBUG) << "using native backend";
26 native::usb_init();
27 }
28 }
29
usb_write(usb_handle * h,const void * data,int len)30 int usb_write(usb_handle* h, const void* data, int len) {
31 return should_use_libusb()
32 ? libusb::usb_write(reinterpret_cast<libusb::usb_handle*>(h), data, len)
33 : native::usb_write(reinterpret_cast<native::usb_handle*>(h), data, len);
34 }
35
usb_read(usb_handle * h,void * data,int len)36 int usb_read(usb_handle* h, void* data, int len) {
37 return should_use_libusb()
38 ? libusb::usb_read(reinterpret_cast<libusb::usb_handle*>(h), data, len)
39 : native::usb_read(reinterpret_cast<native::usb_handle*>(h), data, len);
40 }
41
usb_close(usb_handle * h)42 int usb_close(usb_handle* h) {
43 return should_use_libusb() ? libusb::usb_close(reinterpret_cast<libusb::usb_handle*>(h))
44 : native::usb_close(reinterpret_cast<native::usb_handle*>(h));
45 }
46
usb_kick(usb_handle * h)47 void usb_kick(usb_handle* h) {
48 should_use_libusb() ? libusb::usb_kick(reinterpret_cast<libusb::usb_handle*>(h))
49 : native::usb_kick(reinterpret_cast<native::usb_handle*>(h));
50 }
51