camerauis/cameraxui/cxengine/src/sensor/xqaccsensor_p.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 31 Aug 2010 15:03:46 +0300
branchRCL_3
changeset 23 61bc0f252b2b
permissions -rw-r--r--
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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "xqaccsensor_p.h"
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#include "xqaccsensor.h"
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#include <sensrvaccelerometersensor.h>
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#include <sensrvchannel.h>
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XQAccelerationSensorPrivate::XQAccelerationSensorPrivate(XQSensor& qq) :
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    XQSensorPrivate(qq)
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{
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}
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XQAccelerationSensorPrivate::~XQAccelerationSensorPrivate()
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{
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    close();
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    delete iXyzAxisChannel;
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}
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void XQAccelerationSensorPrivate::open()
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{
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    TRAP(iError,
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        if(!iXyzAxisChannel) {
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            iXyzAxisChannel = CreateChannelL(KSensrvChannelTypeIdAccelerometerXYZAxisData);
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        }
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        iXyzAxisChannel->OpenChannelL();
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    )
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}
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void XQAccelerationSensorPrivate::close()
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{
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    if (iXyzAxisChannel) {
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        iXyzAxisChannel->CloseChannel();
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    }
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}
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void XQAccelerationSensorPrivate::startReceiving()
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{
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    if (iXyzAxisChannel) {
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        TRAP(iError,
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            iXyzAxisChannel->StartDataListeningL(this, 1, 16, 0);
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        )
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    } else {
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        iError = KErrNotReady;
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    }
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}
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void XQAccelerationSensorPrivate::stopReceiving()
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{
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    if (iXyzAxisChannel) {
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        iXyzAxisChannel->StopDataListening();
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    }
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}
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void XQAccelerationSensorPrivate::DataReceived(CSensrvChannel& aChannel,
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    TInt aCount, TInt aDataLost)
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{
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    TSensrvChannelTypeId typeId = aChannel.GetChannelInfo().iChannelType;
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    if (typeId == KSensrvChannelTypeIdAccelerometerXYZAxisData) {
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        HandleXyzAxisData(aChannel, aCount, aDataLost);
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    }
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}
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void XQAccelerationSensorPrivate::HandleXyzAxisData(CSensrvChannel& aChannel, TInt aCount, TInt /*aDataLost*/)
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{
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    for(TInt i = 0; i < aCount; i++) {
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        TPckgBuf<TSensrvAccelerometerAxisData> dataBuf;
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        if (aChannel.GetData(dataBuf) == KErrNone) {
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            TSensrvAccelerometerAxisData data = dataBuf();
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            for (int i = iFilters.size() - 1; i >= 0; --i) {
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                XQAbstractAccelerationSensorFilter* filter = iFilters.at(i);
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                if (filter->filter(data.iAxisX, data.iAxisY, data.iAxisZ))
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                    break;
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            }
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            iXAcceleration = data.iAxisX;
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            iYAcceleration = data.iAxisY;
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            iZAcceleration = data.iAxisZ;
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        }
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    }
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}
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XQSensor::Error XQAccelerationSensorPrivate::error() const
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{
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    switch (iError) {
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        case KErrNone:
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            return XQSensor::NoError;
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        case KErrNoMemory:
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            return XQSensor::OutOfMemoryError;
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        case KErrNotFound:
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            return XQSensor::NotFoundError;
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        default:
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            return XQSensor::UnknownError;
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    }
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}
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void XQAccelerationSensorPrivate::addFilter(XQAbstractAccelerationSensorFilter& filter)
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{
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    iFilters.append(&filter);
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}
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QList<XQAbstractAccelerationSensorFilter*>& XQAccelerationSensorPrivate::filters()
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{
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    return iFilters;
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}
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int XQAccelerationSensorPrivate::xAcceleration() const
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{
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    return iXAcceleration;
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}
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int XQAccelerationSensorPrivate::yAcceleration() const
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{
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    return iYAcceleration;
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}
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int XQAccelerationSensorPrivate::zAcceleration() const
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{
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    return iZAcceleration;
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}
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bool XQAccelerationDataPostFilter::filter(int& xAcceleration, int& yAcceleration, int& zAcceleration)
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{
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    const int maxAcceleration = 127;    //for framework
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    xAcceleration = xAcceleration * 100 / maxAcceleration;
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    yAcceleration = yAcceleration * 100 / maxAcceleration;
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    zAcceleration = zAcceleration * 100 / maxAcceleration;
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    return false;
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}
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XQAccelerationDataPostFilter::XQAccelerationDataPostFilter()
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{
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}
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// End of file