void CAccelerometerSensorSym::start()
{
TSensrvProperty dataFormatProperty;
TInt err;
CSensorBackendSym::start();
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdChannelDataFormat, ESensrvSingleProperty, dataFormatProperty));
if(err == KErrNone)
{
TSensrvProperty scaleRangeProperty;
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdScaledRange, KSensrvItemIndexNone, scaleRangeProperty));
if(err == KErrNone)
{
if(scaleRangeProperty.GetArrayIndex() == ESensrvSingleProperty)
{
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty)
{
scaleRangeProperty.GetMaxValue(iScaleRange);
}
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty)
{
TReal realScale;
scaleRangeProperty.GetMaxValue(realScale);
iScaleRange = realScale;
}
}
else if(scaleRangeProperty.GetArrayIndex() == ESensrvArrayPropertyInfo)
{
TInt index;
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty)
{
scaleRangeProperty.GetValue(index);
}
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty)
{
TReal realIndex;
scaleRangeProperty.GetValue(realIndex);
index = realIndex;
}
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdScaledRange, KSensrvItemIndexNone, index, scaleRangeProperty));
if(err == KErrNone)
{
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty)
{
scaleRangeProperty.GetMaxValue(iScaleRange);
}
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty)
{
TReal realScaleRange;
scaleRangeProperty.GetMaxValue(realScaleRange);
iScaleRange = realScaleRange;
}
}
}
}
}
}
/**
* start is overridden to allow retrieving initial calibration property before
* and to set the required value type flags
*/
void CMagnetometerSensorSym::start()
{
if(sensor())
{
// Initialize the values
iReading.setX(0);
iReading.setY(0);
iReading.setZ(0);
// Set the required type of values
QVariant v = sensor()->property("returnGeoValues");
iReturnGeoValues = (v.isValid() && v.toBool()); // if the property isn't set it's false
}
TInt err;
// get current property value for calibration and set it to reading
TSensrvProperty calibration;
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropCalibrationLevel, ESensrvSingleProperty, calibration));
// If error in getting the calibration level, continue to start the sensor
// as it is not a fatal error
if ( err == KErrNone )
{
TInt calibrationVal;
calibration.GetValue(calibrationVal);
iCalibrationLevel = calibrationVal * (1.0/3.0);
}
// Call backend start
CSensorBackendSym::start();
TSensrvProperty dataFormatProperty;
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdChannelDataFormat, ESensrvSingleProperty, dataFormatProperty));
if(err == KErrNone)
{
TInt dataFormat;
dataFormatProperty.GetValue(dataFormat);
if(dataFormat == ESensrvChannelDataFormatScaled)
{
TSensrvProperty scaleRangeProperty;
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdScaledRange, KSensrvItemIndexNone, scaleRangeProperty));
if(err == KErrNone)
{
if(scaleRangeProperty.GetArrayIndex() == ESensrvSingleProperty)
{
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty)
{
scaleRangeProperty.GetMaxValue(iScaleRange);
}
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty)
{
TReal realScale;
scaleRangeProperty.GetMaxValue(realScale);
iScaleRange = realScale;
}
}
else if(scaleRangeProperty.GetArrayIndex() == ESensrvArrayPropertyInfo)
{
TInt index;
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty)
{
scaleRangeProperty.GetValue(index);
}
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty)
{
TReal realIndex;
scaleRangeProperty.GetValue(realIndex);
index = realIndex;
}
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdScaledRange, KSensrvItemIndexNone, index, scaleRangeProperty));
if(err == KErrNone)
{
if(scaleRangeProperty.PropertyType() == ESensrvIntProperty)
{
scaleRangeProperty.GetMaxValue(iScaleRange);
}
else if(scaleRangeProperty.PropertyType() == ESensrvRealProperty)
{
TReal realScaleRange;
scaleRangeProperty.GetMaxValue(realScaleRange);
iScaleRange = realScaleRange;
}
}
}
}
}
}
}