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_cleanup()30 void usb_cleanup() {
31 if (should_use_libusb()) {
32 libusb::usb_cleanup();
33 } else {
34 native::usb_cleanup();
35 }
36 }
37
usb_write(usb_handle * h,const void * data,int len)38 int usb_write(usb_handle* h, const void* data, int len) {
39 return should_use_libusb()
40 ? libusb::usb_write(reinterpret_cast<libusb::usb_handle*>(h), data, len)
41 : native::usb_write(reinterpret_cast<native::usb_handle*>(h), data, len);
42 }
43
usb_read(usb_handle * h,void * data,int len)44 int usb_read(usb_handle* h, void* data, int len) {
45 return should_use_libusb()
46 ? libusb::usb_read(reinterpret_cast<libusb::usb_handle*>(h), data, len)
47 : native::usb_read(reinterpret_cast<native::usb_handle*>(h), data, len);
48 }
49
usb_close(usb_handle * h)50 int usb_close(usb_handle* h) {
51 return should_use_libusb() ? libusb::usb_close(reinterpret_cast<libusb::usb_handle*>(h))
52 : native::usb_close(reinterpret_cast<native::usb_handle*>(h));
53 }
54
usb_kick(usb_handle * h)55 void usb_kick(usb_handle* h) {
56 should_use_libusb() ? libusb::usb_kick(reinterpret_cast<libusb::usb_handle*>(h))
57 : native::usb_kick(reinterpret_cast<native::usb_handle*>(h));
58 }
59
usb_get_max_packet_size(usb_handle * h)60 size_t usb_get_max_packet_size(usb_handle* h) {
61 return should_use_libusb()
62 ? libusb::usb_get_max_packet_size(reinterpret_cast<libusb::usb_handle*>(h))
63 : native::usb_get_max_packet_size(reinterpret_cast<native::usb_handle*>(h));
64 }
65