telephonyserverplugins/multimodetsy/Multimode/gprs/ATGprsContextDeactivate.H
author Oscar Gonzalez <oscar.1.gonzalez@nokia.com>
Thu, 06 May 2010 15:10:38 +0100
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// Copyright (c) 2001-2009 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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 @file
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 @internalAll 
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*/
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#ifndef __ATGPRSCONTEXTDEACTIVATE_H
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#define __ATGPRSCONTEXTDEACTIVATE_H
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#include "ATBASE.H"
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class CPhoneGlobals;
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class CATGprsContextDeactivate : public CATCommands
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/**
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Sends the AT command to deactivate a context to the network.
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CATGprsContextDeactivate inherits from the CATCommands class. 
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This class transmits the following commands: ATH, +++ and ATH.
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This will release the ppp chain and return to AT command mode.
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@internalComponent
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*/
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	{
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public:
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	static CATGprsContextDeactivate * NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals);
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	~CATGprsContextDeactivate ();
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	virtual void Start(TTsyReqHandle aTsyReqHandle, TAny* /*aDummy*/);
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	virtual void Stop(TTsyReqHandle aTsyReqHandle);
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protected:
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	CATGprsContextDeactivate (CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals);
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	void ConstructL();
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	virtual void EventSignal(TEventSource aSource);
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	virtual void CompleteWithIOError(TEventSource aSource,TInt aStatus);
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	virtual void Complete(TInt aError,TEventSource aSource);
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private:
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	void ValidateHangUpExpectStringL();
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private:
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	CCommChatString* iNoCarrierExpectString;				//< Pointer to response string.
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	enum													
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		{
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		EATNotInProgress,									
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		EDTRDropped,
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		EWaitForDTRRaiseSettle,
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		EATEscapeSeqWaitForWriteComplete,
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		EATEscapeSeqCompleted,
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		EATHangupWaitForWriteComplete,
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		EATHangupReadCompleted,
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		EHangUpCancelling
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		} iState;											//< Enum for class states.
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	};
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#endif