telephonyserverplugins/multimodetsy/Multimode/gprs/atgprscontextdelete.cpp
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     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 #include <et_phone.h>			 // for CTelObject class
       
    17 #include "Gprscontext.h"		// for CGprsContext
       
    18 #include "atgprscontextdelete.h" // header file for this source file
       
    19 #include "mSLOGGER.H"			 // for LOGTEXT macros
       
    20 #include "ATIO.H"				 // for CATIO
       
    21 #include "Matstd.h"			     // for AT command strings, and other stuff
       
    22 #include "NOTIFY.H"				 // for CNotifications
       
    23 
       
    24 const TUint KWriteTimeout=10000;		// Is in milli seconds
       
    25 const TInt KReadTimeout=10;		// Is in seconds
       
    26 
       
    27 //
       
    28 // Macro for logging text to the log file using the local class name and a simpler 
       
    29 // call style.
       
    30 #ifdef __LOGDEB__
       
    31 _LIT8(KLogEntry,"CATGprsContextDelete::%S\t%S");
       
    32 #define LOCAL_LOGTEXT(function,text) {_LIT8(F,function);_LIT8(T,text);LOGTEXT3(KLogEntry,&F,&T);}
       
    33 #else
       
    34 #define LOCAL_LOGTEXT(function,text)
       
    35 #endif
       
    36 
       
    37 
       
    38 /**
       
    39  * @file
       
    40  * AT state machine which will send AT+CGDCONT=x to delete a context from the phone.
       
    41  */
       
    42 
       
    43 CATGprsContextDelete* CATGprsContextDelete::NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals )
       
    44 /**
       
    45  *  Factory function.
       
    46  */
       
    47 	{
       
    48 	CATGprsContextDelete* p =new(ELeave) CATGprsContextDelete(aIo, aTelObject, aInit, aPhoneGlobals);
       
    49 	CleanupStack::PushL(p);
       
    50 	p->ConstructL();			// We call this to allow our base class to construct
       
    51 	CleanupStack::Pop();
       
    52 	return p;
       
    53 	}
       
    54 
       
    55 
       
    56 CATGprsContextDelete::CATGprsContextDelete(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals)
       
    57 											: CATCommands(aIo, aTelObject, aInit, aPhoneGlobals) 
       
    58 /**
       
    59  * C++ constructor.
       
    60  */
       
    61 	{
       
    62 	}
       
    63 
       
    64 CATGprsContextDelete::~CATGprsContextDelete()
       
    65 /**
       
    66  * C++ Destructor.
       
    67  */
       
    68 	{
       
    69 	iIo->RemoveExpectStrings(this);
       
    70 	}
       
    71 
       
    72 void CATGprsContextDelete::Stop(TTsyReqHandle /*aTsyReqHandle*/)
       
    73 /**
       
    74  * This function called by CATCommands to cancel an AT command state machine.
       
    75  * This AT command state machine can not be cancelled.
       
    76  */
       
    77 	{
       
    78 	LOCAL_LOGTEXT("Stop","Enter function");
       
    79 	LOCAL_LOGTEXT("Stop","This functionality is not supported");
       
    80 	}
       
    81 
       
    82 
       
    83 void CATGprsContextDelete::Start(TTsyReqHandle aTsyReqHandle, TAny* aDummy)
       
    84 /**
       
    85  * Starting of the state machine.
       
    86  *
       
    87  * This will be called by CATCommands::ExecuteCommand to start the sending
       
    88  * of the AT commands.
       
    89  */
       
    90 	{
       
    91 	LOCAL_LOGTEXT("Start","Enter function");
       
    92 	const TInt index=*(static_cast<TInt*>(aDummy));
       
    93 	LOGTEXT2(_L8("index=%d"),index);
       
    94 
       
    95 	iReqHandle=aTsyReqHandle;
       
    96 
       
    97 	//
       
    98 	// Send the AT+CGDCONT=x command to the phone
       
    99 	iTxBuffer.Format(KDeleteContextCommand,index);
       
   100 	iIo->Write(this,iTxBuffer);
       
   101 	iIo->SetTimeOut(this,KWriteTimeout);
       
   102 	iState=EWaitForWrite;
       
   103 	}
       
   104 
       
   105 
       
   106 void CATGprsContextDelete::EventSignal(TEventSource aSource)
       
   107 /**
       
   108  * Main part of the state machine
       
   109  */
       
   110 	{
       
   111 	LOCAL_LOGTEXT("EventSignal","Enter function");
       
   112 
       
   113 	if (aSource==ETimeOutCompletion)
       
   114 		{
       
   115 		LOCAL_LOGTEXT("EventSignal","Timeout error");
       
   116 		Complete(KErrTimedOut,aSource); 
       
   117 		return;
       
   118 		}
       
   119 
       
   120 	switch(iState)
       
   121 		{
       
   122 	case EWaitForWrite:
       
   123 		__ASSERT_DEBUG(aSource==EWriteCompletion,Panic(EATCommand_IllegalCompletionWriteExpected));
       
   124 		iIo->WriteAndTimerCancel(this);
       
   125 		StandardWriteCompletionHandler(aSource,KReadTimeout);
       
   126 		iState=EWaitForRead;
       
   127 		break;
       
   128 
       
   129 	case EWaitForRead:
       
   130 		__ASSERT_DEBUG(aSource==EReadCompletion,Panic(EATCommand_IllegalCompletionWaitExpected));
       
   131 		iIo->WriteAndTimerCancel(this);
       
   132 		// There is no need to validate the response from the modem
       
   133 		// as we are going to ignore it anyway.
       
   134 		Complete(KErrNone,aSource);
       
   135 		break;
       
   136 
       
   137 		case EIdle:	
       
   138 			break;
       
   139 		}
       
   140 	}
       
   141 
       
   142 
       
   143 void CATGprsContextDelete::CompleteWithIOError(TEventSource aSource,TInt aStatus)
       
   144 /**
       
   145  * This Function completes the command from the client with an error.
       
   146  */
       
   147 	{
       
   148 	Complete(aStatus,aSource);
       
   149 	}
       
   150 
       
   151 
       
   152 void CATGprsContextDelete::Complete(TInt aError,TEventSource aSource)
       
   153 	{
       
   154 	LOCAL_LOGTEXT("Complete","Enter function");
       
   155 
       
   156 	if(aError==KErrNone)
       
   157 		{
       
   158 		//
       
   159 		// Mark the context as deleted in the TSY
       
   160 		CGprsContext* contextPtr=static_cast<CGprsContext*>(iTelObject);
       
   161 		RPacketService::TContextInfo contextInfo;
       
   162 		contextPtr->ContextInfo(&contextInfo);
       
   163 		contextInfo.iStatus = RPacketContext::EStatusDeleted;
       
   164 		contextPtr->SetContextInfo(&contextInfo);
       
   165 		
       
   166 		//
       
   167 		// Update the notifications 
       
   168 		iPhoneGlobals->iNotificationStore->CheckNotification(iTelObject, EPacketContextStatusChanged);
       
   169 		}
       
   170 
       
   171 	//
       
   172 	// Cleanup the CATIO stuff
       
   173 	RemoveStdExpectStrings();		// We have to call this to ensure iOKExpectString & iErrorExpectString are NULLed
       
   174 	iIo->WriteAndTimerCancel(this);
       
   175 	iIo->RemoveExpectStrings(this);
       
   176 	
       
   177 	//
       
   178 	// Allow base class chance to start of AT commands and complete our client request
       
   179 	CATCommands::Complete(aError,aSource);
       
   180 	iTelObject->ReqCompleted(iReqHandle, aError);
       
   181 	
       
   182 	iState = EIdle;
       
   183 	}
       
   184  
       
   185 
       
   186 
       
   187