author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 19 Mar 2010 09:29:04 +0200 | |
changeset 13 | 46974bebc798 |
child 14 | 63aabac4416d |
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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|
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// System includes |
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#include <qtimer> |
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|
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// User includes |
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#include "radiofrequencyscanninghandler.h" |
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#include "radioenginewrapper_p.h" |
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#include "cradioenginehandler.h" |
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#include "radiostationhandlerif.h" |
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/*! |
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* |
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*/ |
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RadioFrequencyScanningHandler::RadioFrequencyScanningHandler( RadioEngineWrapperPrivate& radioEngine ) : |
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QObject( 0 ), |
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mEngine( radioEngine ), |
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mLastFoundFrequency( 0 ) |
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{ |
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} |
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/*! |
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* From MRadioScanObserver |
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* |
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*/ |
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void RadioFrequencyScanningHandler::ScanFrequencyEventL( TUint32 aFrequency ) |
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{ |
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// The scanning logic starts from the minimun frequency and advances as long as |
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// the found frequency is higher than the last one. When it loops around from the highest |
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// frequency back to the lowest one we check if it stops at the minimun frequency and |
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// add the station there. This logic handles the special case where there is a station in the |
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// minimum frequency, but does not work if there are no stations at all. The adaptation has a |
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// timeout timer that stops the scanning if nothing is found and reports the scanning start |
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// frequency which is this case will be the minimum frequency. In that case this logic will |
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// assume that it was an audible station and adds it. |
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|
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uint frequency = static_cast<uint>( aFrequency ); |
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mEngine.mStationHandler.setCurrentStation( frequency ); |
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if ( frequency > mLastFoundFrequency ) { |
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mLastFoundFrequency = frequency; |
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addFoundStation( frequency ); |
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} else if ( frequency == mEngine.mEngineHandler->MinFrequency() ) { |
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// Special case. A station has been found in the mininmum frequency |
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addFoundStation( frequency ); |
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} |
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} |
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/*! |
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* From MRadioScanObserver |
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* |
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*/ |
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void RadioFrequencyScanningHandler::ScanCompletedEventL( TInt aError ) |
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{ |
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Q_UNUSED( aError ) |
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mEngine.frequencyScannerFinished(); // Causes the scanner to be deleted so nothing can be done after this |
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} |
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/*! |
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* Starts the scanning |
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*/ |
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void RadioFrequencyScanningHandler::startScanning( bool muted ) |
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{ |
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cancel(); |
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QTimer::singleShot( 1000, this, SLOT(delayedStart()) ); |
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} |
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/*! |
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* Adds a new station that was found |
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*/ |
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void RadioFrequencyScanningHandler::addFoundStation( const uint frequency ) |
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{ |
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mEngine.mStationHandler.addScannedFrequency( frequency ); |
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} |
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/*! |
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* Cancels the scanning process |
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*/ |
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void RadioFrequencyScanningHandler::cancel() |
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{ |
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mEngine.mEngineHandler->StopScan(); |
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} |
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/*! |
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* |
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*/ |
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void RadioFrequencyScanningHandler::delayedStart() |
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{ |
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mEngine.mStationHandler.removeLocalStations(); |
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mLastFoundFrequency = mEngine.mEngineHandler->MinFrequency(); |
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mEngine.mEngineHandler->StartScan( *this ); |
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diff
changeset
|
109 |
} |