1c70e1bcbc
Add a libusb-based implementation alongside the existing native implementations, controlled by the ADB_LIBUSB environment variable. Windows will need more work for the usb driver. Bug: http://b/31321337 Test: python test_device.py on linux/darwin, with ADB_LIBUSB=0 and 1 Change-Id: Ib68fb2c6c05475eae3ff4cc19f55802a6f489bb7
55 lines
1.9 KiB
C++
55 lines
1.9 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/logging.h>
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#include "usb.h"
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static bool should_use_libusb() {
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static bool enable = getenv("ADB_LIBUSB") && strcmp(getenv("ADB_LIBUSB"), "1") == 0;
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return enable;
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}
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void usb_init() {
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if (should_use_libusb()) {
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LOG(INFO) << "using libusb backend";
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libusb::usb_init();
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} else {
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LOG(INFO) << "using native backend";
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native::usb_init();
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}
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}
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int usb_write(usb_handle* h, const void* data, int len) {
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return should_use_libusb()
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? libusb::usb_write(reinterpret_cast<libusb::usb_handle*>(h), data, len)
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: native::usb_write(reinterpret_cast<native::usb_handle*>(h), data, len);
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}
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int usb_read(usb_handle* h, void* data, int len) {
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return should_use_libusb()
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? libusb::usb_read(reinterpret_cast<libusb::usb_handle*>(h), data, len)
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: native::usb_read(reinterpret_cast<native::usb_handle*>(h), data, len);
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}
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int usb_close(usb_handle* h) {
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return should_use_libusb() ? libusb::usb_close(reinterpret_cast<libusb::usb_handle*>(h))
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: native::usb_close(reinterpret_cast<native::usb_handle*>(h));
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}
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void usb_kick(usb_handle* h) {
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should_use_libusb() ? libusb::usb_kick(reinterpret_cast<libusb::usb_handle*>(h))
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: native::usb_kick(reinterpret_cast<native::usb_handle*>(h));
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}
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