1 /*
2  * Copyright (C) 2017 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_SENSORHAL_EXT_DUMMY_DYNAMIC_ACCEL_DAEMON_H
18 #define ANDROID_SENSORHAL_EXT_DUMMY_DYNAMIC_ACCEL_DAEMON_H
19 
20 #include "BaseDynamicSensorDaemon.h"
21 #include "BaseSensorObject.h"
22 
23 #include <hardware/sensors.h>
24 #include <utils/Thread.h>
25 #include <mutex>
26 #include <unordered_set>
27 
28 namespace android {
29 namespace SensorHalExt {
30 
31 class ConnectionDetector;
32 
33 /**
34  * This daemon simulates dynamic sensor connection without the need of actually connect peripheral
35  * to Android. It is for debugging and testing. It can handle one concurrent connections at maximum.
36  */
37 class DummyDynamicAccelDaemon : public BaseDynamicSensorDaemon {
38 public:
39     DummyDynamicAccelDaemon(DynamicSensorManager& manager);
40     virtual ~DummyDynamicAccelDaemon() = default;
41 private:
42     class DummySensor : public BaseSensorObject, public Thread {
43     public:
44         DummySensor(const std::string &name);
45         ~DummySensor();
46         virtual const sensor_t* getSensor() const;
47         virtual void getUuid(uint8_t* uuid) const;
48         virtual int enable(bool enable);
49         virtual int batch(nsecs_t sample_period, nsecs_t batch_period);
50     private:
51         // implement Thread function
52         virtual bool threadLoop() override;
53 
54         void waitUntilNextSample();
55 
56         sensor_t mSensor;
57         std::string mSensorName;
58 
59         std::mutex mLock;
60         std::mutex mRunLock;
61         bool mRunState;
62     };
63     // implement BaseDynamicSensorDaemon function
64     virtual BaseSensorVector createSensor(const std::string &deviceKey) override;
65 
66     sp<ConnectionDetector> mFileDetector;
67     sp<ConnectionDetector> mSocketDetector;
68 };
69 } // namespace SensorHalExt
70 } // namespace android
71 
72 #endif // ANDROID_SENSORHAL_EXT_DYNAMIC_SENSOR_DAEMON_H
73 
74