1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_SENSOR_INTERFACE_H 18 #define ANDROID_SENSOR_INTERFACE_H 19 20 #include <sensor/Sensor.h> 21 #include <utils/RefBase.h> 22 23 // --------------------------------------------------------------------------- 24 25 namespace android { 26 // --------------------------------------------------------------------------- 27 class SensorDevice; 28 class SensorFusion; 29 class SensorService; 30 31 class SensorInterface : public VirtualLightRefBase { 32 public: ~SensorInterface()33 virtual ~SensorInterface() {} 34 35 virtual bool process(sensors_event_t* outEvent, const sensors_event_t& event) = 0; 36 37 virtual status_t activate(void* ident, bool enabled) = 0; 38 virtual status_t setDelay(void* ident, int handle, int64_t ns) = 0; 39 virtual status_t batch(void* ident, int handle, int /*flags*/, int64_t samplingPeriodNs, 40 int64_t maxBatchReportLatencyNs) = 0; 41 42 virtual status_t flush(void* /*ident*/, int /*handle*/) = 0; 43 44 virtual const Sensor& getSensor() const = 0; 45 virtual bool isVirtual() const = 0; 46 virtual void autoDisable(void* /*ident*/, int /*handle*/) = 0; 47 48 virtual void willDisableAllSensors() = 0; 49 virtual void didEnableAllSensors() = 0; 50 }; 51 52 class BaseSensor : public SensorInterface { 53 public: 54 explicit BaseSensor(const sensor_t& sensor); 55 BaseSensor(const sensor_t& sensor, const uint8_t (&uuid)[16]); 56 57 // Not all sensors need to support batching. batch(void * ident,int handle,int,int64_t samplingPeriodNs,int64_t maxBatchReportLatencyNs)58 virtual status_t batch(void* ident, int handle, int, int64_t samplingPeriodNs, 59 int64_t maxBatchReportLatencyNs) override { 60 if (maxBatchReportLatencyNs == 0) { 61 return setDelay(ident, handle, samplingPeriodNs); 62 } 63 return -EINVAL; 64 } 65 flush(void *,int)66 virtual status_t flush(void* /*ident*/, int /*handle*/) override { 67 return -EINVAL; 68 } 69 getSensor()70 virtual const Sensor& getSensor() const override { return mSensor; } autoDisable(void *,int)71 virtual void autoDisable(void* /*ident*/, int /*handle*/) override { } 72 willDisableAllSensors()73 virtual void willDisableAllSensors() override { } didEnableAllSensors()74 virtual void didEnableAllSensors() override { } 75 protected: 76 SensorDevice& mSensorDevice; 77 Sensor mSensor; 78 }; 79 80 // --------------------------------------------------------------------------- 81 82 class HardwareSensor : public BaseSensor { 83 public: 84 explicit HardwareSensor(const sensor_t& sensor); 85 HardwareSensor(const sensor_t& sensor, const uint8_t (&uuid)[16]); 86 87 virtual ~HardwareSensor(); 88 89 virtual bool process(sensors_event_t* outEvent, 90 const sensors_event_t& event); 91 92 virtual status_t activate(void* ident, bool enabled) override; 93 virtual status_t batch(void* ident, int handle, int flags, int64_t samplingPeriodNs, 94 int64_t maxBatchReportLatencyNs) override; 95 virtual status_t setDelay(void* ident, int handle, int64_t ns) override; 96 virtual status_t flush(void* ident, int handle) override; isVirtual()97 virtual bool isVirtual() const override { return false; } 98 virtual void autoDisable(void *ident, int handle) override; 99 }; 100 101 class VirtualSensor : public BaseSensor 102 { 103 public: 104 VirtualSensor(); isVirtual()105 virtual bool isVirtual() const override { return true; } 106 protected: 107 SensorFusion& mSensorFusion; 108 }; 109 110 // --------------------------------------------------------------------------- 111 112 class ProximitySensor : public HardwareSensor { 113 public: 114 explicit ProximitySensor(const sensor_t& sensor, SensorService& service); 115 116 status_t activate(void* ident, bool enabled) override; 117 118 void willDisableAllSensors() override; 119 void didEnableAllSensors() override; 120 private: 121 SensorService& mSensorService; 122 }; 123 124 // --------------------------------------------------------------------------- 125 }; // namespace android 126 127 #endif // ANDROID_SENSOR_INTERFACE_H 128