TSensrvPropertyType CSensorBackendSym::propertyType(TSensrvPropertyId aPropertyId, TInt &errId)
{
TSensrvProperty propertyType;
//Getting the property to check the type
TRAPD(err, iBackendData.iSensorChannel->GetPropertyL(aPropertyId, ESensrvSingleProperty, propertyType));
if(err != KErrNone)
{
errId = err;
}
//Find the type of property
return propertyType.PropertyType();
}
/**
* Second phase constructor
* Initialize the backend resources
*/
void CAccelerometerSensorSym::ConstructL()
{
//Initialize the backend resources
InitializeL();
TInt err;
TSensrvProperty unitProperty;
TRAP(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdChannelUnit, ESensrvSingleProperty, unitProperty));
if(err == KErrNone)
{
unitProperty.GetValue(iUnit);
}
}
/**
* Overriding this method in rotation sensor to hard code value of
* mesurement range from -180 to 180 as Qt wants
* Symbian provides measurement range from 0 to 359
*/
void CRotationSensorSym::GetMeasurementrangeAndAccuracy()
{
TReal accuracy = 0;
TSensrvProperty accuracyProperty;
TRAPD(err, iBackendData.iSensorChannel->GetPropertyL(KSensrvPropIdChannelAccuracy, ESensrvSingleProperty, accuracyProperty));
if(err == KErrNone)
{
accuracyProperty.GetValue(accuracy);
}
// Hard coding values -180 and 180 as Qt expects y and z axis
// values range from -180 to 180.
addOutputRange(KMinimumRange, KMaximumRange, accuracy);
}
/**
* HandlePropertyChange is called from backend, to indicate a change in property
*/
void CMagnetometerSensorSym::HandlePropertyChange(CSensrvChannel &/*aChannel*/, const TSensrvProperty &aChangedProperty)
{
if(aChangedProperty.GetPropertyId() != KSensrvPropCalibrationLevel)
{
// Do nothing, if calibration property has not changed
return;
}
TInt calibrationlevel;
aChangedProperty.GetValue(calibrationlevel);
// As Qt requires calibration level in qreal but symbian provides in enum
// It has been agreed with DS Team that the following mechanism will be
// used till discussions with qt mobility are complete
iCalibrationLevel = (1.0/3.0) * calibrationlevel;
}
// ----------------------------------------------------------------------------------
// CSSYChannel::GetPropertyL()
// ----------------------------------------------------------------------------------
//
void CSSYChannel::GetPropertyL( const TSensrvChannelId aChannelId,
TSensrvProperty& aProperty )
{
SSY_TRACE_IN();
SSY_TRACE( EExtended, "ORIENTATIONSSY:ChannelId %d", iChannelInfo.iChannelId );
if ( ChannelId() != aChannelId )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: GetPropertyL wrong channelId!" );
User::Leave( KErrArgument );
}
// try first common sensor properties
TInt ret = iSensorProperties->GetProperty( aProperty );
if ( ret != KErrNone )
{
// then try the channel properties
ret = iChannelProperties->GetProperty( aProperty );
}
if ( ret != KErrNone )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: Property is not supported: 0x%x ", aProperty.GetPropertyId() );
User::Leave( KErrNotSupported );
}
SSY_TRACE_OUT();
}
void CMagnetometer::PropertyChanged(CSensrvChannel& aChannel, const TSensrvProperty& aChangedProperty)
{
TSensrvChannelInfo info = aChannel.GetChannelInfo();
if (info.iChannelType == KSensrvChannelTypeIdMagnetometerXYZAxisData &&
aChangedProperty.GetPropertyId() == KSensrvPropCalibrationLevel)
{
TInt calibration = 0;
aChangedProperty.GetValue(calibration);
iCalibration = calibration == 0? ENone :
calibration == 1? ELow :
calibration == 2? EModerate :
calibration == 3? EHigh : ENone;
}
}
// ---------------------------------------------------------------------------
// CSsyReferencePropertyProvider::GetPropertyL
// ---------------------------------------------------------------------------
//
void CSsyReferencePropertyProvider::GetPropertyL(
const TSensrvChannelId aChannelId,
TSensrvProperty& aProperty )
{
COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferencePropertyProvider::GetPropertyL()" ) ) );
if ( iChannel.ChannelId() != aChannelId && aChannelId != 0 )
{
User::Leave( KErrArgument );
}
else
{
// Search property. Leaves with KErrNotFound if property is not found
aProperty = iChannel.FindPropertyL(
aProperty.GetPropertyId(),
aProperty.PropertyItemIndex(),
aProperty.GetArrayIndex() );
}
COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferencePropertyProvider::GetPropertyL() - return" ) ) );
}
// ---------------------------------------------------------------------------
// CSsyReferenceControl::FindPropertyL
// ---------------------------------------------------------------------------
//
void CSsyReferenceControl::FindPropertyL(
const TSensrvPropertyId aPropertyId,
const TInt aArrayIndex,
TSensrvProperty& aProperty )
{
COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceControl::FindPropertyL()" ) ) );
TSensrvProperty* property = NULL;
TBool propertyFound( EFalse );
// Search property
for ( TInt i = 0; i < iProperties.Count() && !propertyFound; i++ )
{
property = static_cast<TSensrvProperty*>( &iProperties[i] );
// Compare property IDs
if ( property->GetPropertyId() == aPropertyId )
{
// Correct property ID is found, now check is it array type of property.
// Either array indexes must match or propertys array index has to be array info
if ( ( property->GetArrayIndex() == aArrayIndex ) ||
( ( property->GetArrayIndex() == ESensrvArrayPropertyInfo ) &&
( ESensrvSingleProperty == aArrayIndex ) ) )
{
// Correct array index found
propertyFound = ETrue;
}
}
}
// Leave if not found
if ( !propertyFound )
{
User::Leave( KErrNotFound );
}
aProperty = *property;
COMPONENT_TRACE( ( _L( "SSY Reference Plugin - CSsyReferenceControl::FindPropertyL() - return" ) ) );
}
void CMagnetometer::ConstructL()
{
CSensrvChannelFinder* sensorChannelFinder = CSensrvChannelFinder::NewLC();
RSensrvChannelInfoList channelInfoList;
CleanupClosePushL(channelInfoList);
TSensrvChannelInfo mySearchConditions;
mySearchConditions.iChannelType = KSensrvChannelTypeIdMagnetometerXYZAxisData;
sensorChannelFinder->FindChannelsL(channelInfoList, mySearchConditions);
TSensrvChannelInfo channelInfo;
if (channelInfoList.Count() > 0)
channelInfo = channelInfoList[0];
else
User::Leave(KErrNotFound);
CleanupStack::PopAndDestroy(&channelInfoList);
CleanupStack::PopAndDestroy(sensorChannelFinder);
iSensorChannel = CSensrvChannel::NewL(channelInfo);
iSensorChannel->OpenChannelL();
// Get current calibration value
TSensrvProperty property;
iSensorChannel->GetPropertyL(KSensrvPropCalibrationLevel, KSensrvItemIndexNone, property);
TInt calibration = 0;
property.GetValue(calibration);
iCalibration = calibration == 0? ENone :
calibration == 1? ELow :
calibration == 2? EModerate :
calibration == 3? EHigh : ENone;
iSensorChannel->SetPropertyListenerL(this);
}
// ----------------------------------------------------------------------------------
// CSSYChannel::CheckPropertyDependenciesL()
// ----------------------------------------------------------------------------------
//
void CSSYChannel::CheckPropertyDependenciesL( const TSensrvChannelId aChannelId,
const TSensrvProperty& aProperty,
RSensrvChannelList& aAffectedChannels )
{
SSY_TRACE_IN();
SSY_TRACE( EExtended, "ORIENTATIONSSY:ChannelId %d", iChannelInfo.iChannelId );
if ( ChannelId() != aChannelId )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: CheckPropertyDependenciesL wrong channelId!" );
User::Leave( KErrArgument );
}
CSSYProperty* propertyPtr = iSensorProperties;
TSensrvProperty property = aProperty;
// try first common sensor properties
TInt ret = iSensorProperties->GetProperty( property );
if ( ret != KErrNone )
{
propertyPtr = iChannelProperties;
// then try the channel properties
ret = iChannelProperties->GetProperty( property );
}
if ( ret != KErrNone )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: Property is not supported: 0x%x ", aProperty.GetPropertyId() );
User::Leave( KErrNotFound );
}
propertyPtr->GetAffectedChannels( aAffectedChannels );
SSY_TRACE_OUT();
}
TInt CSensorBackendSym::SetProperty(TSensrvPropertyId aPropertyId, TSensrvPropertyType aPropertyType, TSensrvArrayIndex aArrayIndex, TReal aValue)
{
//Creating property object
TSensrvProperty prop;
//Set property Id
prop.SetPropertyId(aPropertyId);
//Set Index of property
prop.SetItemIndex(-1);
//Set value depending on type of property
if(aPropertyType == ESensrvRealProperty)
{
prop.SetValue(aValue);
}
else if(aPropertyType == ESensrvIntProperty)
{
prop.SetValue((TInt)aValue);
}
//Set array Index
prop.SetArrayIndex(aArrayIndex);
//Setting the property
return iBackendData.iSensorChannel->SetProperty(prop);
}
// ---------------------------------------------------------------------------
// Adds property to the end of the queue
// ---------------------------------------------------------------------------
//
TInt CSensrvPropertyQueue::Append( const TSensrvProperty& aProperty )
{
COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvPropertyQueue::Append(Property ID:%d)" ), aProperty.GetPropertyId() ) );
TInt err(KErrNone);
// Allocate linkable transaction pointer in same heap as queue
TLinkablePropertyPtr* newPtr = reinterpret_cast<TLinkablePropertyPtr*>(iHeap->Alloc(sizeof(TLinkablePropertyPtr)));
if (newPtr)
{
Mem::Copy(&(newPtr->iProperty), &aProperty, sizeof(TSensrvProperty));
iPropertyPtrList.AddLast(*newPtr);
}
else
{
ERROR_TRACE( ( _L( "Sensor Server - CCSensrvPropertyQueue::Append - ERROR: No memory to add item" ) ) );
err = KErrNoMemory;
}
COMPONENT_TRACE( ( _L( "Sensor Server - CSensrvPropertyQueue::Append - return %d" ), err ) );
return err;
}
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;
}
}
}
}
}
}
// ----------------------------------------------------------------------------------
// CSSYChannel::SetPropertyL()
// ----------------------------------------------------------------------------------
//
void CSSYChannel::SetPropertyL( const TSensrvChannelId aChannelId,
const TSensrvProperty& aProperty )
{
SSY_TRACE_IN();
SSY_TRACE( EExtended, "ORIENTATIONSSY:ChannelId %d", iChannelInfo.iChannelId );
if ( ChannelId() != aChannelId )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: SetPropertyL wrong channelId!" );
User::Leave( KErrArgument );
}
TBool valueChanged( ETrue );
RSensrvChannelList affectedChannels;
TInt valueInt( 0 );
// try first common sensor properties
TInt ret = iSensorProperties->SetProperty( aProperty, affectedChannels );
if ( ret == KErrNotFound )
{
// then try the channel properties
ret = iChannelProperties->SetProperty( aProperty, affectedChannels );
}
if ( ret != KErrNone && ret != KErrAlreadyExists )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: Property is not supported or it's readonly: 0x%x ", aProperty.GetPropertyId() );
User::Leave( KErrNotSupported );
}
if ( ret == KErrAlreadyExists )
{
// client tried to set the same value that the property already has, lets just return without doing anything
// but informing the "change" via the callback
valueChanged = EFalse;
}
// do something if the value was really changed
if ( valueChanged )
{
aProperty.GetValue( valueInt );
// These are ReadOnly values, cannot change these
if ( ( aProperty.GetPropertyId() == KSensrvPropIdDataRate ) ||
( aProperty.GetPropertyId() == KSensrvPropIdAvailability ) ||
( aProperty.GetPropertyId() == KSensrvPropIdMeasureRange ) ||
( aProperty.GetPropertyId() == KSensrvPropIdChannelDataFormat ) ||
( aProperty.GetPropertyId() == KSensrvPropIdChannelAccuracy ) )
{
SSY_TRACE( EError, "ORIENTATIONSSY:ERROR: Setting the property is not supported: 0x%x ", aProperty.GetPropertyId() );
User::Leave( KErrNotSupported );
}
}
// we call the callback function to inform that property was changed, even if it was not actually changed
iCallback->PropertyChanged( iChannelInfo.iChannelId, affectedChannels, aProperty );
affectedChannels.Reset();
SSY_TRACE_OUT();
}
/**
* 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;
}
}
}
}
}
}
}