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/*
* Copyright (C) 2020 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.
*/
#ifndef ANDROID_HARDWARE_SENSORS_V2_0_SENSORS_SUBHAL_H
#define ANDROID_HARDWARE_SENSORS_V2_0_SENSORS_SUBHAL_H
#include <vector>
#include "Sensor.h"
#include "SubHal.h"
using ::android::hardware::sensors::V1_0::SensorType;
namespace android {
namespace hardware {
namespace sensors {
namespace V2_0 {
namespace subhal {
namespace implementation {
using ::android::hardware::sensors::V1_0::OperationMode;
using ::android::hardware::sensors::V1_0::Result;
using ::android::hardware::sensors::V2_0::implementation::IHalProxyCallback;
using ::android::hardware::sensors::V2_0::subhal::implementation::ISensorsEventCallback;
using ::sensor::hal::configuration::V1_0::Configuration;
/**
* Implementation of a ISensorsSubHal that can be used as a reference HAL implementation of sensors
* multihal 2.0. See the README file for more details.
*/
class SensorsSubHal : public ISensorsSubHal, public ISensorsEventCallback {
using Event = ::android::hardware::sensors::V1_0::Event;
using RateLevel = ::android::hardware::sensors::V1_0::RateLevel;
using SharedMemInfo = ::android::hardware::sensors::V1_0::SharedMemInfo;
public:
SensorsSubHal();
// Methods from ::android::hardware::sensors::V2_0::ISensors follow.
Return<void> getSensorsList(getSensorsList_cb _hidl_cb) override;
Return<Result> setOperationMode(OperationMode mode) override;
OperationMode getOperationMode() const { return mCurrentOperationMode; }
Return<Result> activate(int32_t sensorHandle, bool enabled) 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;
// Methods from ::android::hardware::sensors::V2_0::implementation::ISensorsSubHal follow.
const std::string getName() override { return "Google-IIO-SensorsSubhal"; }
Return<Result> initialize(const sp<IHalProxyCallback>& halProxyCallback) override;
// Method from ISensorsEventCallback.
void postEvents(const std::vector<Event>& events, bool wakeup) override;
protected:
void AddSensor(const struct iio_device_data& iio_data,
const std::optional<std::vector<Configuration>>& config);
/**
* A map of the available sensors
*/
std::map<int32_t, std::unique_ptr<SensorBase>> mSensors;
/**
* Callback used to communicate to the HalProxy when dynamic sensors are connected /
* disconnected, sensor events need to be sent to the framework, and when a wakelock should be
* acquired.
*/
sp<IHalProxyCallback> mCallback;
private:
/**
* The current operation mode of the multihal framework. Ensures that all subhals are set to
* the same operation mode.
*/
OperationMode mCurrentOperationMode = OperationMode::NORMAL;
/**
* The next available sensor handle
*/
int32_t mNextHandle;
};
} // namespace implementation
} // namespace subhal
} // namespace V2_0
} // namespace sensors
} // namespace hardware
} // namespace android
#endif
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