--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/telephonyserverplugins/multimodetsy/Multimode/gprs/atgprsntwkregstatus.cpp	Tue Feb 02 01:41:59 2010 +0200
@@ -0,0 +1,279 @@
+// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+#include <et_phone.h>		// For CTelObject
+
+#include "atgprsntwkregstatus.h"		// Header file for this source file
+#include "atgprsntwkregstatuschange.h"		// for CATGprsNtwkRegStatusChange class 
+#include "mSLOGGER.H"				// For LOGTEXT macros
+#include "ATIO.H"				// For CATIO class
+#include "Matstd.h"			// For AT command strings and timeout values
+
+const TUint KWriteTimeout=10000;		// Is in milli seconds
+const TInt KReadTimeout=10;		// Is in seconds
+
+//
+// Macro for logging text to the log file using the local class name and a simpler 
+// call style.
+#ifdef __LOGDEB__
+_LIT8(KLogEntry,"CATGprsNtwkRegStatus::%S\t%S");
+#define LOCAL_LOGTEXT(function,text) {_LIT8(F,function);_LIT8(T,text);LOGTEXT3(KLogEntry,&F,&T);}
+#else
+#define LOCAL_LOGTEXT(function,text)
+#endif
+
+
+
+/**
+ * @file
+ * This file implements the CATGprsNtwkRegStatus class which is one of the state machine used by the
+ * GPRS AT TSY library. 
+ * This state machine uses the "AT+CGREG?" command to find out the phones current network
+ * registration status.
+ */
+
+CATGprsNtwkRegStatus* CATGprsNtwkRegStatus::NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals,CATGprsNtwkRegStatusChange* aATGprsNtwkRegStatusChange)
+/**
+ * Symbian standard factory function (also known as 1st stage constructor)
+ */
+	{
+	CATGprsNtwkRegStatus* p=new(ELeave) CATGprsNtwkRegStatus(aIo, aTelObject, aInit, aPhoneGlobals,aATGprsNtwkRegStatusChange);
+	CleanupStack::PushL(p);
+	p->ConstructL();
+	CleanupStack::Pop();
+	return p;
+	}
+
+void CATGprsNtwkRegStatus::ConstructL()
+/**
+ * Symbian standard 2nd stage constructor
+ */
+	{
+	// Allow our base class a chance to do its construction
+	CATCommands::ConstructL();
+	}
+
+CATGprsNtwkRegStatus::CATGprsNtwkRegStatus(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals,CATGprsNtwkRegStatusChange* aATGprsNtwkRegStatusChange)
+	: CATCommands(aIo, aTelObject, aInit, aPhoneGlobals),
+	iATGprsNtwkRegStatusChange(aATGprsNtwkRegStatusChange)
+/**
+ * C++ Constructor
+ */
+	{
+	}
+
+CATGprsNtwkRegStatus::~CATGprsNtwkRegStatus()
+/**
+ * C++ Destructor
+ */
+	{
+	iIo->RemoveExpectStrings(this);				
+	}
+
+void CATGprsNtwkRegStatus::Start(TTsyReqHandle aTsyReqHandle, TAny* aParams)
+/**
+ * This method called when a client wants to start the state machine
+ * and get the current network registration from the phone.
+ */
+	{
+	// Save the data in the arguments in our class data for later use
+	iReqHandle = aTsyReqHandle;
+	iRegStatus = REINTERPRET_CAST(RPacketService::TRegistrationStatus*, aParams);
+
+	//
+	// Disable the +CRING watcher to ensure it does not steal the 
+	// +CRING modem response from the modem
+	iATGprsNtwkRegStatusChange->Disable();
+	
+	// Start the writing of the 'AT+CGREG?' command to the phone
+	iTxBuffer.Format(KGetCGREGCommand);
+	iIo->Write(this,iTxBuffer);
+	iIo->SetTimeOut(this,KWriteTimeout);
+	iState=EWaitForWrite;
+	}
+
+void CATGprsNtwkRegStatus::Stop(TTsyReqHandle aTsyReqHandle)
+/**
+ * This method called when a client wants to stop/cancel this state machine.
+ */
+	{
+	LOCAL_LOGTEXT("Stop","Enter method");
+	if(iState!=EIdle && aTsyReqHandle==iReqHandle)
+		{
+		LOCAL_LOGTEXT("Stop","Cancelling client request");
+		Complete(KErrCancel,ETimeOutCompletion);
+		}
+	}
+
+void CATGprsNtwkRegStatus::CompleteWithIOError(TEventSource aSource,TInt aStatus)
+/**
+ * This Function completes the command from the client with an error.
+ * @param aSource source of event from communication class.
+ * @param aStatus status of event.
+ */
+	{
+	LOCAL_LOGTEXT("CompleteWithIOError","Enter function");
+	Complete(aStatus, aSource);
+	}
+
+
+void CATGprsNtwkRegStatus::Complete(TInt aError,TEventSource aSource)
+/**
+ * This Function completes the command from the client.
+ * @param aError an error code to relay to client.
+ */
+	{
+	LOGTEXT2(_L8("CATGprsNtwkRegStatus::Complete called error: %d"), aError);
+
+	// Cleanup our use of the CATIO class
+	RemoveStdExpectStrings();
+	iIo->WriteAndTimerCancel(this);	
+	iIo->RemoveExpectStrings(this);
+
+	//
+	// Enable the +CRING watcher so it can get back to doing what it does
+	// best (ie. catching the unsolicted +CRING commands from the modem).
+	iATGprsNtwkRegStatusChange->Enable();
+
+	// Allow our base class to do its thing and then complete the client request
+	CATCommands::Complete(aError,aSource);		
+	iTelObject->ReqCompleted(iReqHandle, aError);
+
+	iState=EIdle;
+	}
+
+
+void CATGprsNtwkRegStatus::EventSignal(TEventSource aSource)
+/**
+ * Main body of the state machine.
+ *
+ * This method with iState==EWaitForWrite when our 
+ * 'AT+CGREG?' has been successfully sent to the phone/modem.
+ * 
+ * This method with iState==EWaitForRead when received a response from the 
+ * phone/modem.
+ */
+	{
+	LOCAL_LOGTEXT("EventSignal","Enter method");
+	TInt ret(KErrNone);
+
+	if (aSource==ETimeOutCompletion)
+		{
+		//
+		// Catch timeout events
+		LOCAL_LOGTEXT("EventSignal","Timeout event");
+		Complete(KErrTimedOut,aSource);
+		}
+	else
+		{
+		//
+		// Process non-timeout events
+		switch(iState)
+			{
+		case EWaitForWrite:
+			LOCAL_LOGTEXT("EventSignal","EWaitForWrite event");
+			iIo->WriteAndTimerCancel(this);
+			StandardWriteCompletionHandler(aSource,KReadTimeout);
+			iState=EWaitForRead;
+			break;
+
+		case EWaitForRead:
+			LOCAL_LOGTEXT("EventSignal","EWaitForRead event");
+			ret = ValidateExpectString();
+			RemoveStdExpectStrings();
+			
+			// If modem returned ERROR then assume the modem does not suport this command
+			if(ret!=KErrNone)		
+				{
+				Complete(KErrNotSupported,aSource);
+				}
+			else
+				{
+				TRAP(ret,ParseResponseL());
+				Complete(ret,aSource);
+				}
+			break;
+	
+		case EIdle:		// All states must be included in the switch statement to 
+			break;			// prevent an ARM compilation warning
+			}			
+		}
+	}
+
+
+void CATGprsNtwkRegStatus::ParseResponseL()
+/**
+ * This method parses the modems response to the 'AT+CGREG?' command.
+ * An example response is '+CGREG: 0,1' where second value denotes the
+ * current registration status.
+ */
+	{
+	ParseBufferLC();
+	TDblQueIter<CATParamListEntry> iter(iRxResults);
+	CATParamListEntry* entry=iter++;
+	
+	if((entry==NULL)||(entry->iResultPtr!=KCGREGResponseString))
+		{
+		LOCAL_LOGTEXT("ParseResponseL","Failed to find +CGREG:");
+		User::Leave(KErrNotSupported);
+		}
+	
+	// Skip over first parameter
+	entry=iter++;
+	if(!entry)
+		{
+		LOCAL_LOGTEXT("ParseResponseL","Failed to find 1st parameter");
+		User::Leave(KErrNotFound);
+		}		
+
+	// Read in second parameter
+	entry=iter++;
+	if(!entry)
+		{
+		LOCAL_LOGTEXT("ParseResponseL","Failed to find 2nd parameter");
+		User::Leave(KErrNotFound);
+		}		
+	TInt etsiVal;
+	CATParamListEntry::EntryValL(entry,etsiVal);
+
+	// Convert scond value to equivalent EtelMM enum
+	switch(etsiVal)
+		{
+	case 0:		// ETSI value as defined in ETSI 07.07 section 10.1.14
+		*iRegStatus=RPacketService::ENotRegisteredNotSearching;
+		break;
+	case 1:		// ETSI value as defined in ETSI 07.07 section 10.1.14
+		*iRegStatus=RPacketService::ERegisteredOnHomeNetwork;
+		break;
+	case 2:		// ETSI value as defined in ETSI 07.07 section 10.1.14
+		*iRegStatus=RPacketService::ENotRegisteredSearching;
+		break;
+	case 3:		// ETSI value as defined in ETSI 07.07 section 10.1.14
+		*iRegStatus=RPacketService::ERegistrationDenied;
+		break;
+	case 4:		// ETSI value as defined in ETSI 07.07 section 10.1.14
+		*iRegStatus=RPacketService::EUnknown;
+		break;
+	case 5:		// ETSI value as defined in ETSI 07.07 section 10.1.14
+		*iRegStatus=RPacketService::ERegisteredRoaming;
+		break;
+	default:
+		*iRegStatus=RPacketService::EUnknown;
+		break;
+		}
+		
+	CleanupStack::PopAndDestroy();	// Pop and destroy the object pushed by ParseBufferLC()
+	}
+