1 // Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @internalAll 

    19 */

    20 

    21 #ifndef __ATGPRSCONTEXTDEACTIVATE_H

    22 #define __ATGPRSCONTEXTDEACTIVATE_H

    23 #include "ATBASE.H"

    24 

    25 class CPhoneGlobals;

    26 

    27 class CATGprsContextDeactivate : public CATCommands

    28 /**

    29 Sends the AT command to deactivate a context to the network.

    30 CATGprsContextDeactivate inherits from the CATCommands class. 

    31 This class transmits the following commands: ATH, +++ and ATH.

    32 This will release the ppp chain and return to AT command mode.

    33 @internalComponent

    34 */

    35 	{

    36 public:

    37 	static CATGprsContextDeactivate * NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals);

    38 	

    39 	~CATGprsContextDeactivate ();

    40 	virtual void Start(TTsyReqHandle aTsyReqHandle, TAny* /*aDummy*/);

    41 	virtual void Stop(TTsyReqHandle aTsyReqHandle);

    42 protected:

    43 	CATGprsContextDeactivate (CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals);

    44 	void ConstructL();

    45 	virtual void EventSignal(TEventSource aSource);

    46 	virtual void CompleteWithIOError(TEventSource aSource,TInt aStatus);

    47 	virtual void Complete(TInt aError,TEventSource aSource);

    48 private:

    49 	void ValidateHangUpExpectStringL();

    50 private:

    51 	CCommChatString* iNoCarrierExpectString;				//< Pointer to response string.

    52 	enum													

    53 		{

    54 		EATNotInProgress,									

    55 		EDTRDropped,

    56 		EWaitForDTRRaiseSettle,

    57 		EATEscapeSeqWaitForWriteComplete,

    58 		EATEscapeSeqCompleted,

    59 		EATHangupWaitForWriteComplete,

    60 		EATHangupReadCompleted,

    61 		EHangUpCancelling

    62 		} iState;											//< Enum for class states.

    63 

    64 	};

    65 

    66 

    67 

    68 #endif