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/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "SubHal.h"
#include <android/hardware/sensors/2.0/ISensors.h>
#include <fmq/MessageQueue.h>
#include <hardware_legacy/power.h>
#include <hidl/MQDescriptor.h>
#include <hidl/Status.h>
namespace android {
namespace hardware {
namespace sensors {
namespace V2_0 {
namespace implementation {
using ::android::sp;
using ::android::hardware::EventFlag;
using ::android::hardware::hidl_string;
using ::android::hardware::hidl_vec;
using ::android::hardware::MessageQueue;
using ::android::hardware::MQDescriptor;
using ::android::hardware::Return;
using ::android::hardware::Void;
struct HalProxy : public ISensors {
using Event = ::android::hardware::sensors::V1_0::Event;
using OperationMode = ::android::hardware::sensors::V1_0::OperationMode;
using RateLevel = ::android::hardware::sensors::V1_0::RateLevel;
using Result = ::android::hardware::sensors::V1_0::Result;
using SharedMemInfo = ::android::hardware::sensors::V1_0::SharedMemInfo;
HalProxy();
~HalProxy();
// Methods from ::android::hardware::sensors::V2_0::ISensors follow.
Return<void> getSensorsList(getSensorsList_cb _hidl_cb) override;
Return<Result> setOperationMode(OperationMode mode) override;
Return<Result> activate(int32_t sensorHandle, bool enabled) override;
Return<Result> initialize(
const ::android::hardware::MQDescriptorSync<Event>& eventQueueDescriptor,
const ::android::hardware::MQDescriptorSync<uint32_t>& wakeLockDescriptor,
const sp<ISensorsCallback>& sensorsCallback) override;
Return<Result> batch(int32_t sensorHandle, int64_t samplingPeriodNs,
int64_t maxReportLatencyNs) override;
Return<Result> flush(int32_t sensorHandle) override;
Return<Result> injectSensorData(const Event& event) override;
Return<void> registerDirectChannel(const SharedMemInfo& mem,
registerDirectChannel_cb _hidl_cb) override;
Return<Result> unregisterDirectChannel(int32_t channelHandle) override;
Return<void> configDirectReport(int32_t sensorHandle, int32_t channelHandle, RateLevel rate,
configDirectReport_cb _hidl_cb) override;
Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& args) override;
// Below methods from ::android::hardware::sensors::V2_0::ISensorsCaback with a minor change
// to pass in the sub-HAL index. While the above methods are invoked from the sensors framework
// via the binder, these methods are invoked from a callback provided to sub-HALs inside the
// same process as the HalProxy, but potentially running on different threads.
Return<void> onDynamicSensorsConnected(const hidl_vec<SensorInfo>& dynamicSensorsAdded,
int32_t subHalIndex);
Return<void> onDynamicSensorsDisconnected(const hidl_vec<int32_t>& dynamicSensorHandlesRemoved,
int32_t subHalIndex);
private:
using EventMessageQueue = MessageQueue<Event, kSynchronizedReadWrite>;
using WakeLockMessageQueue = MessageQueue<uint32_t, kSynchronizedReadWrite>;
/**
* The Event FMQ where sensor events are written
*/
std::unique_ptr<EventMessageQueue> mEventQueue;
/**
* The Wake Lock FMQ that is read to determine when the framework has handled WAKE_UP events
*/
std::unique_ptr<WakeLockMessageQueue> mWakeLockQueue;
/**
* Event Flag to signal to the framework when sensor events are available to be read
*/
EventFlag* mEventQueueFlag;
/**
* Callback to the sensors framework to inform it that new sensors have been added or removed.
*/
sp<ISensorsCallback> mDynamicSensorsCallback;
};
} // namespace implementation
} // namespace V2_0
} // namespace sensors
} // namespace hardware
} // namespace android