author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 18 Aug 2010 10:38:51 +0300 | |
changeset 38 | 48c22c726cf9 |
parent 28 | 85e0c0339cc3 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010 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: Special AT command handler |
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* |
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*/ |
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|
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#include "DunAtSpecialCmdHandler.h" |
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#include "DunDebug.h" |
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|
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const TInt KDefaultGranularity = 1; |
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|
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// AT command(s) below is part of the AT&FE0Q0V1&C1&D2+IFC=3,1. command which |
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// is sent by MAC. There is no delimiter between "AT&F" and "E0". |
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// Only list those commands where alphabetical boundary detection is needed |
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// (i.e. "AT&F0" is not needed as "AT&F0E0" has non-alphabetical boundary) |
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_LIT8( KSpecialATCmd1, "AT&F" ); |
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// --------------------------------------------------------------------------- |
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// Two-phased constructor. |
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// --------------------------------------------------------------------------- |
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// |
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CDunAtSpecialCmdHandler* CDunAtSpecialCmdHandler::NewL() |
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{ |
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CDunAtSpecialCmdHandler* self = new (ELeave) CDunAtSpecialCmdHandler(); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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CleanupStack::Pop( self ); |
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return self; |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CDunAtSpecialCmdHandler::CDunAtSpecialCmdHandler |
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// --------------------------------------------------------------------------- |
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// |
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CDunAtSpecialCmdHandler::CDunAtSpecialCmdHandler() |
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{ |
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} |
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// --------------------------------------------------------------------------- |
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// CDunAtSpecialCmdHandler::ConstructL |
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// --------------------------------------------------------------------------- |
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// |
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void CDunAtSpecialCmdHandler::ConstructL() |
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{ |
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iSpecialCmds = new (ELeave) CDesC8ArrayFlat( KDefaultGranularity ); |
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// Add here all special commands which need to be handled |
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iSpecialCmds->AppendL( KSpecialATCmd1 ); |
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} |
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// --------------------------------------------------------------------------- |
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// Destructor. |
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// --------------------------------------------------------------------------- |
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// |
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CDunAtSpecialCmdHandler::~CDunAtSpecialCmdHandler() |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::~CDunAtSpecialCmdHandler()") )); |
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delete iSpecialCmds; |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::~CDunAtSpecialCmdHandler() complete") )); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// Checks if the command has to be treated special way. |
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// For example in case of MAC, it sends command AT&FE0Q0V1&C1&D2+IFC=3,1. |
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// meaning there is no delimiters in the command. |
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// In case of MAC we try to search AT&F (sub command) string from the beginning |
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// of the command. |
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// Search is done character by character basis. |
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// --------------------------------------------------------------------------- |
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// |
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TBool CDunAtSpecialCmdHandler::IsCompleteSubCommand( TChar aCharacter ) |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsCompleteSubCommand()") )); |
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iBuffer.Append( aCharacter ); |
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TBool completeSubCmd = EFalse; |
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|
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if( !IsDataReadyForComparison(iBuffer.Length()) ) |
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{ |
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// No need to do comparison because we don't have correct amount of data |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsCompleteSubCommand(), no need to compare") )); |
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return completeSubCmd; |
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} |
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TInt count = iSpecialCmds->Count(); |
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for ( TInt i=0; i<count; i++ ) |
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{ |
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if( iSpecialCmds->MdcaPoint(i).Compare(iBuffer) == 0 ) |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsCompleteSubCommand(), match found, cmd index %d"), i )); |
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// Reset internal buffer for next comparison. |
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ResetComparisonBuffer(); |
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completeSubCmd = ETrue; |
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break; |
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} |
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} |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsCompleteSubCommand() complete") )); |
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return completeSubCmd; |
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} |
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109 |
|
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// --------------------------------------------------------------------------- |
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// Resets the buffer used for comparisons |
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// --------------------------------------------------------------------------- |
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// |
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void CDunAtSpecialCmdHandler::ResetComparisonBuffer() |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::ResetComparisonBuffer()") )); |
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iBuffer.FillZ(); |
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iBuffer.Zero(); |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::ResetComparisonBuffer() complete") )); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// Defines when comparison is excecuted, checks if the data lengths are equal. |
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// --------------------------------------------------------------------------- |
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// |
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TBool CDunAtSpecialCmdHandler::IsDataReadyForComparison( TInt aLength ) |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsDataReadyForComparison()") )); |
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TInt count = iSpecialCmds->Count(); |
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for ( TInt i=0; i<count; i++ ) |
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{ |
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if( iSpecialCmds->MdcaPoint(i).Length() == aLength ) |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsDataReadyForComparison() (ready) complete") )); |
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return ETrue; |
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} |
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} |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::IsDataReadyForComparison() (not ready) complete") )); |
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return EFalse; |
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} |
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141 |
|
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// --------------------------------------------------------------------------- |
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// Defines minimum length of the special commands. |
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// --------------------------------------------------------------------------- |
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// |
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TInt CDunAtSpecialCmdHandler::MinimumLength() |
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{ |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::MinimumLength()") )); |
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TInt length = iSpecialCmds->MdcaPoint(0).Length(); |
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TInt count = iSpecialCmds->Count(); |
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for ( TInt i=1; i<count; i++ ) |
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{ |
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if( iSpecialCmds->MdcaPoint(i).Length() < length ) |
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{ |
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length = iSpecialCmds->MdcaPoint(i).Length(); |
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break; |
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} |
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} |
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FTRACE(FPrint( _L("CDunAtSpecialCmdHandler::MinimumLength() complete") )); |
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return length; |
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} |