2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef ANDROID_SENSOR_INTERFACE_H
18 #define ANDROID_SENSOR_INTERFACE_H
21 #include <sys/types.h>
23 #include <gui/Sensor.h>
25 #include "SensorDevice.h"
27 // ---------------------------------------------------------------------------
30 // ---------------------------------------------------------------------------
32 class SensorInterface {
34 virtual ~SensorInterface();
36 virtual bool process(sensors_event_t* outEvent,
37 const sensors_event_t& event) = 0;
39 virtual status_t activate(void* ident, bool enabled) = 0;
40 virtual status_t setDelay(void* ident, int handle, int64_t ns) = 0;
42 // Not all sensors need to support batching.
43 virtual status_t batch(void* ident, int handle, int flags, int64_t samplingPeriodNs,
44 int64_t maxBatchReportLatencyNs) {
45 if (maxBatchReportLatencyNs == 0) {
46 return setDelay(ident, handle, samplingPeriodNs);
51 virtual status_t flush(void* ident, int handle) {
55 virtual Sensor getSensor() const = 0;
56 virtual bool isVirtual() const = 0;
57 virtual void autoDisable(void *ident, int handle) { }
60 // ---------------------------------------------------------------------------
62 class HardwareSensor : public SensorInterface
64 SensorDevice& mSensorDevice;
68 HardwareSensor(const sensor_t& sensor);
70 virtual ~HardwareSensor();
72 virtual bool process(sensors_event_t* outEvent,
73 const sensors_event_t& event);
75 virtual status_t activate(void* ident, bool enabled);
76 virtual status_t batch(void* ident, int handle, int flags, int64_t samplingPeriodNs,
77 int64_t maxBatchReportLatencyNs);
78 virtual status_t setDelay(void* ident, int handle, int64_t ns);
79 virtual status_t flush(void* ident, int handle);
80 virtual Sensor getSensor() const;
81 virtual bool isVirtual() const { return false; }
82 virtual void autoDisable(void *ident, int handle);
86 // ---------------------------------------------------------------------------
87 }; // namespace android
89 #endif // ANDROID_SENSOR_INTERFACE_H