/*
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* Copyright (C) 2015 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 SENSORS_H_
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#define SENSORS_H_
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#include <hardware/hardware.h>
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#include <hardware/sensors.h>
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#include <media/stagefright/foundation/ABase.h>
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#include <utils/RefBase.h>
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#include <memory>
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#include <unordered_set>
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#include <vector>
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using android::sp;
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namespace android {
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struct HubConnection;
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} // namespace android
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using android::HubConnection;
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namespace android {
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namespace SensorHalExt {
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class BaseSensorObject;
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class DynamicSensorManager;
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class SensorEventCallback;
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} // namespace BaseSensorObject
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} // namespace android
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using android::SensorHalExt::BaseSensorObject;
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using android::SensorHalExt::DynamicSensorManager;
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using android::SensorHalExt::SensorEventCallback;
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struct SensorContext {
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struct sensors_poll_device_1 device;
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explicit SensorContext(const struct hw_module_t *module);
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bool getHubAlive();
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size_t getSensorList(sensor_t const **list);
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private:
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int close();
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int activate(int handle, int enabled);
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int setDelay(int handle, int64_t delayNs);
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int poll(sensors_event_t *data, int count);
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int batch(int handle, int64_t sampling_period_ns,
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int64_t max_report_latency_ns);
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int flush(int handle);
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int register_direct_channel(
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const struct sensors_direct_mem_t* mem, int channel_handle);
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int config_direct_report(
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int sensor_handle, int channel_handle, const struct sensors_direct_cfg_t * config);
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int inject_sensor_data(const struct sensors_event_t *event);
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void initializeHalExtension();
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// static wrappers
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static int CloseWrapper(struct hw_device_t *dev);
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static int ActivateWrapper(
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struct sensors_poll_device_t *dev, int handle, int enabled);
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static int SetDelayWrapper(
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struct sensors_poll_device_t *dev, int handle, int64_t delayNs);
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static int PollWrapper(
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struct sensors_poll_device_t *dev, sensors_event_t *data, int count);
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static int BatchWrapper(
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struct sensors_poll_device_1 *dev,
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int handle,
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int flags,
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int64_t sampling_period_ns,
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int64_t max_report_latency_ns);
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static int FlushWrapper(struct sensors_poll_device_1 *dev, int handle);
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static int RegisterDirectChannelWrapper(struct sensors_poll_device_1 *dev,
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const struct sensors_direct_mem_t* mem, int channel_handle);
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static int ConfigDirectReportWrapper(struct sensors_poll_device_1 *dev,
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int sensor_handle, int channel_handle, const struct sensors_direct_cfg_t * config);
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static int InjectSensorDataWrapper(struct sensors_poll_device_1 *dev, const sensors_event_t *event);
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class SensorOperation {
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public:
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virtual bool owns(int handle) = 0;
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virtual int activate(int handle, int enabled) = 0;
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virtual int setDelay(int handle, int64_t delayNs) = 0;
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virtual int batch(
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int handle, int64_t sampling_period_ns,
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int64_t max_report_latency_ns) = 0;
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virtual int flush(int handle) = 0;
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virtual ~SensorOperation() {}
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};
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class HubConnectionOperation : public SensorOperation {
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public:
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HubConnectionOperation(sp<HubConnection> hubConnection);
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virtual bool owns(int handle) override;
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virtual int activate(int handle, int enabled) override;
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virtual int setDelay(int handle, int64_t delayNs) override;
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virtual int batch(
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int handle, int64_t sampling_period_ns,
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int64_t max_report_latency_ns) override;
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virtual int flush(int handle) override;
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virtual ~HubConnectionOperation() {}
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private:
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sp<HubConnection> mHubConnection;
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std::unordered_set<int> mHandles;
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};
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std::vector<sensor_t> mSensorList;
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sp<HubConnection> mHubConnection;
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std::vector<std::unique_ptr<SensorOperation> > mOperationHandler;
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#ifdef DYNAMIC_SENSOR_EXT_ENABLED
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private:
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class DynamicSensorManagerOperation : public SensorOperation {
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public:
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DynamicSensorManagerOperation(DynamicSensorManager* manager);
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virtual bool owns(int handle) override;
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virtual int activate(int handle, int enabled) override;
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virtual int setDelay(int handle, int64_t delayNs) override;
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virtual int batch(
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int handle, int64_t sampling_period_ns,
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int64_t max_report_latency_ns) override;
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virtual int flush(int handle) override;
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virtual ~DynamicSensorManagerOperation() {}
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private:
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std::unique_ptr<DynamicSensorManager> mDynamicSensorManager;
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};
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static constexpr int32_t kDynamicHandleBase = 0x10000;
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static constexpr int32_t kMaxDynamicHandleCount = 0xF0000; // ~1M handles, enough before reboot
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std::unique_ptr<SensorEventCallback> mEventCallback;
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#endif //DYNAMIC_SENSOR_EXT_ENABLED
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DISALLOW_EVIL_CONSTRUCTORS(SensorContext);
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};
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#endif // SENSORS_H_
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