/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <math.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <hardware/sensors.h>
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#include "LinearAccelerationSensor.h"
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#include "SensorDevice.h"
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#include "SensorFusion.h"
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namespace android {
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// ---------------------------------------------------------------------------
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LinearAccelerationSensor::LinearAccelerationSensor(sensor_t const* list, size_t count) :
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mGravitySensor(list, count) {
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const Sensor &gsensor = mGravitySensor.getSensor();
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const sensor_t sensor = {
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.name = "Linear Acceleration Sensor",
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.vendor = "AOSP",
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.version = gsensor.getVersion(),
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.handle = '_lin',
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.type = SENSOR_TYPE_LINEAR_ACCELERATION,
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.maxRange = gsensor.getMaxValue(),
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.resolution = gsensor.getResolution(),
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.power = gsensor.getPowerUsage(),
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.minDelay = gsensor.getMinDelay(),
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};
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mSensor = Sensor(&sensor);
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}
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bool LinearAccelerationSensor::process(sensors_event_t* outEvent,
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const sensors_event_t& event)
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{
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bool result = mGravitySensor.process(outEvent, event);
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if (result && event.type == SENSOR_TYPE_ACCELEROMETER) {
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outEvent->data[0] = event.acceleration.x - outEvent->data[0];
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outEvent->data[1] = event.acceleration.y - outEvent->data[1];
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outEvent->data[2] = event.acceleration.z - outEvent->data[2];
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outEvent->sensor = '_lin';
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outEvent->type = SENSOR_TYPE_LINEAR_ACCELERATION;
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return true;
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}
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return false;
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}
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status_t LinearAccelerationSensor::activate(void* ident, bool enabled) {
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return mGravitySensor.activate(ident, enabled);
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}
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status_t LinearAccelerationSensor::setDelay(void* ident, int handle, int64_t ns) {
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return mGravitySensor.setDelay(ident, handle, ns);
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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