blob: d1cd7324990337aabd15f8798e28829c69988ebd [file] [log] [blame]
/*
* Copyright (C) 2010 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.
*/
#include <stdint.h>
#include <math.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <hardware/sensors.h>
#include "LinearAccelerationSensor.h"
#include "SensorDevice.h"
#include "SensorFusion.h"
namespace android {
// ---------------------------------------------------------------------------
LinearAccelerationSensor::LinearAccelerationSensor(sensor_t const* list, size_t count) :
mGravitySensor(list, count) {
const Sensor &gsensor = mGravitySensor.getSensor();
const sensor_t sensor = {
.name = "Linear Acceleration Sensor",
.vendor = "AOSP",
.version = gsensor.getVersion(),
.handle = '_lin',
.type = SENSOR_TYPE_LINEAR_ACCELERATION,
.maxRange = gsensor.getMaxValue(),
.resolution = gsensor.getResolution(),
.power = gsensor.getPowerUsage(),
.minDelay = gsensor.getMinDelay(),
};
mSensor = Sensor(&sensor);
}
bool LinearAccelerationSensor::process(sensors_event_t* outEvent,
const sensors_event_t& event)
{
bool result = mGravitySensor.process(outEvent, event);
if (result && event.type == SENSOR_TYPE_ACCELEROMETER) {
outEvent->data[0] = event.acceleration.x - outEvent->data[0];
outEvent->data[1] = event.acceleration.y - outEvent->data[1];
outEvent->data[2] = event.acceleration.z - outEvent->data[2];
outEvent->sensor = '_lin';
outEvent->type = SENSOR_TYPE_LINEAR_ACCELERATION;
return true;
}
return false;
}
status_t LinearAccelerationSensor::activate(void* ident, bool enabled) {
return mGravitySensor.activate(ident, enabled);
}
status_t LinearAccelerationSensor::setDelay(void* ident, int handle, int64_t ns) {
return mGravitySensor.setDelay(ident, handle, ns);
}
// ---------------------------------------------------------------------------
}; // namespace android