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/*
* Copyright (C) 2011 Samsung
*
* 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.
*/
#include <fcntl.h>
#include <errno.h>
#include <math.h>
#include <poll.h>
#include <unistd.h>
#include <dirent.h>
#include <sys/select.h>
#include <pthread.h>
#include <cutils/log.h>
#include "ProximitySensor.h"
/*****************************************************************************/
ProximitySensor::ProximitySensor()
: SamsungSensorBase("proximity", ABS_DISTANCE)
{
mPendingEvent.sensor = ID_P;
mPendingEvent.type = SENSOR_TYPE_PROXIMITY;
}
int ProximitySensor::setDelay(int32_t handle __unused, int64_t ns __unused)
{
return -1;
}
float ProximitySensor::indexToValue(size_t index) const
{
return index * PROXIMITY_THRESHOLD_GP2A;
}
bool ProximitySensor::hasPendingEvents() const {
return mHasPendingEvent;
}
int ProximitySensor::handleEnable(int en) {
if (!en)
return 0;
struct input_absinfo absinfo;
if (!ioctl(data_fd, EVIOCGABS(ABS_DISTANCE), &absinfo)) {
mHasPendingEvent = true;
mPendingEvent.distance = indexToValue(absinfo.value);
return 0;
} else {
return -1;
}
}
bool ProximitySensor::handleEvent(input_event const *event) {
mPendingEvent.distance = indexToValue(event->value);
return true;
}
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