c002dd9eca
Creates a wrapper that makes a 2.0 sensor HAL appear to look like a 2.1 sensor HAL so that various pieces of code can be shared between the two implementations. Bug: 144139857 Test: Run VTS Change-Id: I4ee4fd2b900e5d4ca744f420f69e150ba38f7949
109 lines
No EOL
3.5 KiB
C++
109 lines
No EOL
3.5 KiB
C++
/*
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* Copyright (C) 2020 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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#ifndef ANDROID_HARDWARE_SENSORS_V2_1_EVENTMESSAGEQUEUEWRAPPER_H
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#define ANDROID_HARDWARE_SENSORS_V2_1_EVENTMESSAGEQUEUEWRAPPER_H
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#include "convertV2_1.h"
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#include <android/hardware/sensors/2.1/types.h>
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#include <fmq/MessageQueue.h>
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#include <hidl/MQDescriptor.h>
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#include <hidl/Status.h>
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#include <log/log.h>
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#include <atomic>
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namespace android {
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namespace hardware {
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namespace sensors {
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namespace V2_1 {
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namespace implementation {
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class EventMessageQueueWrapperBase : public RefBase {
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public:
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virtual ~EventMessageQueueWrapperBase() {}
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virtual std::atomic<uint32_t>* getEventFlagWord() = 0;
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virtual size_t availableToRead() = 0;
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virtual bool read(V2_1::Event* events, size_t numToRead) = 0;
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virtual bool write(const std::vector<V2_1::Event>& events) = 0;
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};
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class EventMessageQueueWrapperV1_0 : public EventMessageQueueWrapperBase {
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public:
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using EventMessageQueue = MessageQueue<V1_0::Event, kSynchronizedReadWrite>;
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EventMessageQueueWrapperV1_0(std::unique_ptr<EventMessageQueue>& queue)
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: mQueue(std::move(queue)) {}
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const ::android::hardware::MQDescriptorSync<V1_0::Event>* getDesc() {
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return mQueue->getDesc();
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}
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virtual std::atomic<uint32_t>* getEventFlagWord() override {
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return mQueue->getEventFlagWord();
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}
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virtual size_t availableToRead() override { return mQueue->availableToRead(); }
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virtual bool read(V2_1::Event* events, size_t numToRead) override {
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return mQueue->read(reinterpret_cast<V1_0::Event*>(events), numToRead);
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}
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virtual bool write(const std::vector<V2_1::Event>& events) override {
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const std::vector<V1_0::Event>& oldEvents = convertToOldEvents(events);
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return mQueue->write(oldEvents.data(), oldEvents.size());
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}
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private:
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std::unique_ptr<EventMessageQueue> mQueue;
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};
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class EventMessageQueueWrapperV2_1 : public EventMessageQueueWrapperBase {
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public:
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using EventMessageQueue = MessageQueue<V2_1::Event, kSynchronizedReadWrite>;
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EventMessageQueueWrapperV2_1(std::unique_ptr<EventMessageQueue>& queue)
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: mQueue(std::move(queue)) {}
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const ::android::hardware::MQDescriptorSync<V2_1::Event>* getDesc() {
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return mQueue->getDesc();
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}
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std::atomic<uint32_t>* getEventFlagWord() override { return mQueue->getEventFlagWord(); }
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virtual size_t availableToRead() override { return mQueue->availableToRead(); }
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virtual bool read(V2_1::Event* events, size_t numToRead) override {
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return mQueue->read(events, numToRead);
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}
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bool write(const std::vector<V2_1::Event>& events) override {
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return mQueue->write(events.data(), events.size());
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}
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private:
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std::unique_ptr<EventMessageQueue> mQueue;
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};
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} // namespace implementation
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} // namespace V2_1
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} // namespace sensors
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_SENSORS_V2_1_EVENTMESSAGEQUEUEWRAPPER_H
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