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 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 30 void usb_cleanup() { 31 if (should_use_libusb()) { 32 libusb::usb_cleanup(); 33 } else { 34 native::usb_cleanup(); 35 } 36 } 37 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 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 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 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 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
