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/*
* Copyright (C) 2012 The Android Open Source Project
*
* 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 COMPASS_SENSOR_H
#define COMPASS_SENSOR_H
#include <stdint.h>
#include <errno.h>
#include <sys/cdefs.h>
#include <sys/types.h>
// TODO fixme, need input_event
#include <stdint.h>
#include <errno.h>
#include <sys/cdefs.h>
#include <sys/types.h>
#include <poll.h>
#include <utils/Vector.h>
#include <utils/KeyedVector.h>
#include "sensors.h"
#include "SensorBase.h"
#include "InputEventReader.h"
class CompassSensor : public SensorBase {
public:
CompassSensor();
virtual ~CompassSensor();
virtual int getFd() const;
virtual int enable(int32_t handle, int enabled);
virtual int setDelay(int32_t handle, int64_t ns);
virtual int getEnable(int32_t handle);
virtual int64_t getDelay(int32_t handle);
// unnecessary for MPL
virtual int readEvents(sensors_event_t *data, int count) { return 0; }
int readSample(long *data, int64_t *timestamp);
int providesCalibration() { return 0; }
void getOrientationMatrix(signed char *orient);
long getSensitivity();
int getAccuracy() { return 0; }
void fillList(struct sensor_t *list);
int isIntegrated() { return (mI2CBus == COMPASS_BUS_SECONDARY); }
private:
enum CompassBus {
COMPASS_BUS_PRIMARY = 0,
COMPASS_BUS_SECONDARY = 1
} mI2CBus;
struct sysfs_attrbs {
char *compass_enable;
char *compass_x_fifo_enable;
char *compass_y_fifo_enable;
char *compass_z_fifo_enable;
char *compass_rate;
char *compass_scale;
char *compass_orient;
} compassSysFs;
// implementation specific
signed char mCompassOrientation[9];
long mCachedCompassData[3];
int compass_fd;
int64_t mCompassTimestamp;
InputEventCircularReader mCompassInputReader;
int64_t mDelay;
int mEnable;
char *pathP;
void processCompassEvent(const input_event *event);
int inv_init_sysfs_attributes(void);
};
/*****************************************************************************/
#endif // COMPASS_SENSOR_H
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