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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "sensorfwals.h"
char const * const Sensorfwals::id("sensorfw.als");
Sensorfwals::Sensorfwals(QSensor *sensor)
: SensorfwSensorBase(sensor)
, m_initDone(false)
{
init();
setReading<QAmbientLightReading>(&m_reading);
// metadata
setDescription(QLatin1String("ambient light intensity given as 5 pre-defined levels"));
addOutputRange(0, 5, 1);
addDataRate(10,10);
sensor->setDataRate(10);//set a default rate
}
void Sensorfwals::start()
{
if (reinitIsNeeded)
init();
if (m_sensorInterface) {
Unsigned data(((ALSSensorChannelInterface*)m_sensorInterface)->lux());
m_reading.setLightLevel(getLightLevel(data.x()));
m_reading.setTimestamp(data.UnsignedData().timestamp_);
newReadingAvailable();
}
SensorfwSensorBase::start();
}
void Sensorfwals::slotDataAvailable(const Unsigned& data)
{
QAmbientLightReading::LightLevel level = getLightLevel(data.UnsignedData().value_);
if (level != m_reading.lightLevel()) {
m_reading.setLightLevel(level);
m_reading.setTimestamp(data.UnsignedData().timestamp_);
newReadingAvailable();
}
}
bool Sensorfwals::doConnect()
{
Q_ASSERT(m_sensorInterface);
return QObject::connect(m_sensorInterface, SIGNAL(ALSChanged(Unsigned)),
this, SLOT(slotDataAvailable(Unsigned)));
}
QString Sensorfwals::sensorName() const
{
return "alssensor";
}
QAmbientLightReading::LightLevel Sensorfwals::getLightLevel(int lux)
{
// Convert from integer to fixed levels
if (lux < 0) {
return QAmbientLightReading::Undefined;
} else if (lux < 10) {
return QAmbientLightReading::Dark;
} else if (lux < 80) {
return QAmbientLightReading::Twilight;
} else if (lux < 400) {
return QAmbientLightReading::Light;
} else if (lux < 2500) {
return QAmbientLightReading::Bright;
} else {
return QAmbientLightReading::Sunny;
}
}
void Sensorfwals::init()
{
m_initDone = false;
initSensor<ALSSensorChannelInterface>(m_initDone);
}
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