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/*
* Copyright (C) 2015 Intel Corp
*
* 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_LIGHT_SENSOR_H
#define ANDROID_LIGHT_SENSOR_H
#include <stdint.h>
#include <errno.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include "sensors.h"
#include "SensorBase.h"
#include "InputEventReader.h"
/*****************************************************************************/
/* the GP2A is a binary proximity sensor that triggers around 5 cm on
* this hardware */
#define PROXIMITY_THRESHOLD_GP2A 5.0f
struct input_event;
class LightSensor : public SensorBase {
int mEnabled;
int mEventsSinceEnable;
InputEventCircularReader mInputReader;
sensors_event_t mPendingEvent;
bool mHasPendingEvent;
char input_sysfs_path[PATH_MAX];
int input_sysfs_path_len;
int setInitialState();
float mPreviousLight;
float indexToValue(size_t index) const;
public:
LightSensor();
virtual ~LightSensor();
virtual int readEvents(sensors_event_t* data, int count);
virtual bool hasPendingEvents() const;
virtual int setDelay(int32_t handle, int64_t ns);
virtual int enable(int32_t handle, int enabled);
virtual int isActivated(int handle);
#ifdef HAL_VERSION_GT_1_0
virtual int batch(int handle, int flags, int64_t period_ns, int64_t timeout);
#endif
};
/*****************************************************************************/
#endif // ANDROID_LIGHT_SENSOR_H
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