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/****************************************************************************
**
** Copyright (C) 2012 Research In Motion
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtSensors module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "bbaccelerometer.h"
BbAccelerometer::BbAccelerometer(QSensor *sensor)
: BbSensorBackend<QAccelerometerReading>(devicePath(), SENSOR_TYPE_ACCELEROMETER, sensor)
{
setDescription(QLatin1String("X, Y, and Z axes accelerations in m/s^2"));
QAccelerometer * const accelerometer = qobject_cast<QAccelerometer *>(sensor);
if (accelerometer) {
connect(accelerometer, SIGNAL(accelerationModeChanged(AccelerationMode)),
this, SLOT(applyAccelerationMode()));
}
}
bool BbAccelerometer::updateReadingFromEvent(const sensor_event_t &event, QAccelerometerReading *reading)
{
float x = event.motion.dsp.x;
float y = event.motion.dsp.y;
float z = event.motion.dsp.z;
remapAxes(&x, &y, &z);
reading->setX(x);
reading->setY(y);
reading->setZ(z);
return true;
}
void BbAccelerometer::start()
{
applyAccelerationMode();
BbSensorBackend<QAccelerometerReading>::start();
}
QString BbAccelerometer::devicePath()
{
return QLatin1String("/dev/sensor/accel");
}
void BbAccelerometer::applyAccelerationMode()
{
const QAccelerometer * const accelerometer = qobject_cast<QAccelerometer *>(sensor());
if (accelerometer) {
QString fileName;
sensor_type_e sensorType;
switch (accelerometer->accelerationMode()) {
case QAccelerometer::Gravity:
fileName = QLatin1String("/dev/sensor/gravity");
sensorType = SENSOR_TYPE_GRAVITY;
break;
case QAccelerometer::User:
fileName = QLatin1String("/dev/sensor/linAccel");
sensorType = SENSOR_TYPE_LINEAR_ACCEL;
break;
default:
case QAccelerometer::Combined:
fileName = devicePath();
sensorType = SENSOR_TYPE_ACCELEROMETER;
break;
}
setDevice(fileName, sensorType);
}
}
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