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104 lines
3.0 KiB
104 lines
3.0 KiB
/*
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* Copyright (C) 2018 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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#pragma once
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#include <android-base/file.h>
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#include <android-base/properties.h>
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#include <android-base/unique_fd.h>
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#include <android/hardware/usb/gadget/1.1/IUsbGadget.h>
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#include <hidl/MQDescriptor.h>
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#include <hidl/Status.h>
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#include <sys/epoll.h>
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#include <sys/eventfd.h>
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#include <utils/Log.h>
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#include <chrono>
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#include <condition_variable>
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#include <mutex>
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#include <string>
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#include <thread>
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namespace android {
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namespace hardware {
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namespace usb {
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namespace gadget {
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namespace V1_1 {
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namespace implementation {
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using ::android::sp;
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using ::android::base::GetProperty;
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using ::android::base::SetProperty;
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using ::android::base::unique_fd;
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using ::android::base::WriteStringToFile;
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using ::android::hardware::hidl_array;
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using ::android::hardware::hidl_memory;
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using ::android::hardware::hidl_string;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::Return;
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using ::android::hardware::Void;
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using ::android::hardware::usb::gadget::V1_0::GadgetFunction;
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using ::android::hardware::usb::gadget::V1_0::Status;
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using ::android::hardware::usb::gadget::V1_1::IUsbGadget;
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using ::std::lock_guard;
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using ::std::move;
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using ::std::mutex;
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using ::std::string;
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using ::std::thread;
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using ::std::unique_ptr;
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using ::std::vector;
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using ::std::chrono::steady_clock;
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using namespace std::chrono;
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using namespace std::chrono_literals;
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struct UsbGadget : public IUsbGadget {
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UsbGadget();
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unique_fd mInotifyFd;
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unique_fd mEventFd;
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unique_fd mEpollFd;
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unique_ptr<thread> mMonitor;
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volatile bool mMonitorCreated;
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vector<string> mEndpointList;
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// protects the CV.
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std::mutex mLock;
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std::condition_variable mCv;
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// Makes sure that only one request is processed at a time.
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std::mutex mLockSetCurrentFunction;
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uint64_t mCurrentUsbFunctions;
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bool mCurrentUsbFunctionsApplied;
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Return<void> setCurrentUsbFunctions(uint64_t functions,
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const sp<V1_0::IUsbGadgetCallback> &callback,
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uint64_t timeout) override;
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Return<void> getCurrentUsbFunctions(const sp<V1_0::IUsbGadgetCallback> &callback) override;
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Return<Status> reset() override;
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private:
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Status tearDownGadget();
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Status setupFunctions(uint64_t functions, const sp<V1_0::IUsbGadgetCallback> &callback,
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uint64_t timeout);
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};
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} // namespace implementation
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} // namespace V1_1
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} // namespace gadget
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} // namespace usb
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} // namespace hardware
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} // namespace android
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