locationmgmt/networkgateway/src/netregstatusmonitor.cpp
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     1 // Copyright (c) 2006-2009 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 // Object to monitor the ETel network registration status and 
       
    15 // broadcast it to the other components of the LBS sub-system.
       
    16 // 
       
    17 //
       
    18 
       
    19 #include <e32base.h>
       
    20 #include <e32property.h>
       
    21 #include <etelmm.h>
       
    22 #include <rsshared.h>
       
    23 #include "lbsdevloggermacros.h"
       
    24 #include "netregstatusmonitor.h"
       
    25 
       
    26 using namespace CommsDat;
       
    27 
       
    28 
       
    29 /**
       
    30 */
       
    31 CNetworkRegistrationStatusMonitor::CNetworkRegistrationStatusMonitor(
       
    32 		MNetworkRegistrationStatusObserver& aObserver) :
       
    33 	CActive(EPriorityStandard),
       
    34 	iPhoneNetRegStatus(RMobilePhone::ENotRegisteredNoService),
       
    35 	iCurrentNetRegStatus(RLbsNetworkRegistrationStatus::ENotRegistered),
       
    36 	iLastGoodNetRegStatus(RLbsNetworkRegistrationStatus::ENotRegistered),
       
    37 	iInitialised(EFalse),
       
    38 	iObserver(aObserver)
       
    39 	{
       
    40 	CActiveScheduler::Add(this);
       
    41 	}
       
    42 
       
    43 /**
       
    44 */	
       
    45 CNetworkRegistrationStatusMonitor::~CNetworkRegistrationStatusMonitor()
       
    46 	{
       
    47 	Cancel();
       
    48 	//Make sure we have finished the initialisation state, before attempting to close these
       
    49 	if(iInitialised)
       
    50 		{
       
    51 		iPhone.Close();
       
    52 		iTelServer.Close();
       
    53 		iLbsNetRegStatus.Close();
       
    54 		}
       
    55 	}
       
    56 
       
    57 /**
       
    58 */	
       
    59 CNetworkRegistrationStatusMonitor* CNetworkRegistrationStatusMonitor::NewL(MNetworkRegistrationStatusObserver& aObserver)
       
    60 	{
       
    61 	CNetworkRegistrationStatusMonitor* self = new (ELeave) CNetworkRegistrationStatusMonitor(aObserver);
       
    62 	CleanupStack::PushL(self);
       
    63 	self->ConstructL();
       
    64 	CleanupStack::Pop(self);
       
    65 	return self;
       
    66 	}
       
    67 
       
    68 /**
       
    69 */
       
    70 void CNetworkRegistrationStatusMonitor::ConstructL()
       
    71 	{	
       
    72 	iConfigurationProperty.Attach(KUidSystemCategory, RootServer::KUidC32StartPropertyKey.iUid); // needs the KEY
       
    73 	TInt propertyValue = RootServer::EInitialising; // set to safe state
       
    74 	TInt propertyResult = iConfigurationProperty.Get(propertyValue);
       
    75 	
       
    76 	if(propertyValue < RootServer::EConfigurationComplete)
       
    77 		{
       
    78 		//Attempt to connect to the ETel Server.  This will start C32Start if it has not already been started by the startup routine.
       
    79 		User::LeaveIfError(iTelServer.Connect());
       
    80 		iConfigurationProperty.Subscribe(iStatus);
       
    81 		SetActive();
       
    82 		}
       
    83 	else
       
    84 		{
       
    85 		//Property already present, continue usual initialisation
       
    86 		SetupPhoneL();
       
    87 		iInitialised = ETrue;
       
    88 		}
       
    89 	}
       
    90 
       
    91 void CNetworkRegistrationStatusMonitor::SetupPhoneL()
       
    92 	{
       
    93 	// Connect to the Network Registration Status internal LBS bus
       
    94 	iLbsNetRegStatus.OpenL();
       
    95 		
       
    96 	TRAPD(err, InitialisePhoneL());
       
    97 	if (err == KErrNone)
       
    98 		{
       
    99 		// Connected to ETel successfully, now get the network 
       
   100 		// registration status.
       
   101 		iPhone.GetNetworkRegistrationStatus(iStatus, iPhoneNetRegStatus);
       
   102 		SetActive();
       
   103 		}
       
   104 	else
       
   105 		{		
       
   106 		// Couldn't connect to ETel; publish a default value.
       
   107 		iLbsNetRegStatus.SetNetworkRegistrationStatus(RLbsNetworkRegistrationStatus::ENotRegistered);
       
   108 		}
       
   109 	}
       
   110 
       
   111 /**
       
   112 */
       
   113 void CNetworkRegistrationStatusMonitor::RunL()
       
   114 	{
       
   115 	User::LeaveIfError(iStatus.Int());
       
   116 	
       
   117 	//Check to see whether the initialisation has finished
       
   118 	if(iInitialised == EFalse)
       
   119 		{
       
   120 		TInt propertyValue = RootServer::EInitialising; // set to safe state
       
   121 		TInt propertyResult = iConfigurationProperty.Get(propertyValue);
       
   122 		
       
   123 		if(propertyValue != RootServer::EConfigurationComplete)
       
   124 			{
       
   125 			iConfigurationProperty.Subscribe(iStatus);
       
   126 			SetActive();
       
   127 			}
       
   128 		else
       
   129 			{
       
   130 			iConfigurationProperty.Cancel();
       
   131 			iInitialised = ETrue;
       
   132 			
       
   133 			SetupPhoneL();
       
   134 			}
       
   135 		
       
   136 		}
       
   137 	else
       
   138 		{
       
   139 		LBSLOG2(ELogP5, "Current network registration status: %S", &NetRegStatusToDesC(iPhoneNetRegStatus));
       
   140 	
       
   141 		// Re-subscribe to monitor any further changes.
       
   142 		MonitorNetworkRegistrationStatus();
       
   143 	
       
   144 		// Publish the new network registration status to LBS components.
       
   145 		switch (iPhoneNetRegStatus)
       
   146 			{
       
   147 			case RMobilePhone::ERegisteredOnHomeNetwork:
       
   148 				{
       
   149 				iCurrentNetRegStatus = RLbsNetworkRegistrationStatus::ERegisteredHomeNetwork;
       
   150 				break;
       
   151 				}
       
   152 			case RMobilePhone::ERegisteredRoaming:
       
   153 				{
       
   154 				iCurrentNetRegStatus = RLbsNetworkRegistrationStatus::ERegisteredRoamingNetwork;
       
   155 				break;
       
   156 				}
       
   157 			// All of the following should result in 'not registered' status
       
   158 			case RMobilePhone::ENotRegisteredNoService:
       
   159 			case RMobilePhone::ENotRegisteredEmergencyOnly:
       
   160 			case RMobilePhone::ENotRegisteredSearching:
       
   161 			case RMobilePhone::ERegisteredBusy:
       
   162 			case RMobilePhone::ERegistrationDenied:
       
   163 			case RMobilePhone::ERegistrationUnknown:
       
   164 			default:
       
   165 				{
       
   166 				iCurrentNetRegStatus = RLbsNetworkRegistrationStatus::ENotRegistered;
       
   167 				break;
       
   168 				}
       
   169 			}
       
   170 		iLbsNetRegStatus.SetNetworkRegistrationStatus(iCurrentNetRegStatus);
       
   171 		
       
   172 		if (iCurrentNetRegStatus != RLbsNetworkRegistrationStatus::ENotRegistered)
       
   173 			{
       
   174 			iLastGoodNetRegStatus = iCurrentNetRegStatus;
       
   175 			}
       
   176 		
       
   177 		LBSLOG2(ELogP5, "Network registration status broadcast to LBS: %S", &LbsNetRegStatusToDesC(iCurrentNetRegStatus));
       
   178 		LBSLOG2(ELogP5, "Last Good Network registration status: %S", &LbsNetRegStatusToDesC(iLastGoodNetRegStatus));
       
   179 		
       
   180 		iObserver.OnNetworkRegistrationStatusChange(iCurrentNetRegStatus);
       
   181 		}
       
   182 	}
       
   183 
       
   184 /**
       
   185 */	
       
   186 void CNetworkRegistrationStatusMonitor::DoCancel()
       
   187 	{
       
   188 	//Check to see what stage we in are to find out what AO to cancel
       
   189 	if(iInitialised)
       
   190 		{
       
   191 		//We have initialised, so cancel RPhone request
       
   192 		iPhone.CancelAsyncRequest(EMobilePhoneNotifyNetworkRegistrationStatusChange);
       
   193 		}
       
   194 	else
       
   195 		{
       
   196 		//Still attempting to initialise, so cancel RootServer RProperty request
       
   197 		iConfigurationProperty.Cancel();
       
   198 		}
       
   199 	}
       
   200 
       
   201 /**
       
   202 */	
       
   203 TInt CNetworkRegistrationStatusMonitor::RunError(TInt /*aError*/)
       
   204 	{
       
   205 	//TODO: add in a panic here?
       
   206 	return KErrNone;
       
   207 	}
       
   208 
       
   209 /**
       
   210 */
       
   211 void CNetworkRegistrationStatusMonitor::MonitorNetworkRegistrationStatus()
       
   212 	{
       
   213 	iPhone.NotifyNetworkRegistrationStatusChange(iStatus, iPhoneNetRegStatus);
       
   214 	SetActive();	
       
   215 	}
       
   216 
       
   217 /**
       
   218 */
       
   219 RLbsNetworkRegistrationStatus::TLbsNetworkRegistrationStatus CNetworkRegistrationStatusMonitor::GetCurrentNetworkRegistrationStatus()
       
   220 	{
       
   221 	return iCurrentNetRegStatus;
       
   222 	}
       
   223 
       
   224 /**
       
   225 */
       
   226 RLbsNetworkRegistrationStatus::TLbsNetworkRegistrationStatus CNetworkRegistrationStatusMonitor::GetLastGoodNetworkRegistrationStatus()
       
   227 	{
       
   228 	return iLastGoodNetRegStatus;
       
   229 	}
       
   230 
       
   231 /** Retrieves the name of the .tsy to use from CommDB/CommsDat
       
   232 
       
   233 The network gateway is hard-coded to use the .tsy file specified in
       
   234 the ModemBearerEntry which is specified (by index) by the
       
   235 KCDTIdModemPhoneServicesSMS setting in the global settings table.
       
   236 */	
       
   237 void CNetworkRegistrationStatusMonitor::GetCommDbTSYnameL(TDes& aTsyName)
       
   238 	{
       
   239 	CMDBSession* db = CMDBSession::NewLC(KCDLatestVersion);
       
   240 
       
   241 	CMDBField<TUint32>* globalSettingField = new(ELeave) CMDBField<TUint32>(KCDTIdModemPhoneServicesSMS);
       
   242 	CleanupStack::PushL(globalSettingField);
       
   243 
       
   244 	globalSettingField->SetRecordId(1);
       
   245 	globalSettingField->LoadL(*db);
       
   246 	TUint32 modemId = *globalSettingField;
       
   247 
       
   248 	CMDBField<TDesC>* tsyField = new(ELeave) CMDBField<TDesC>(KCDTIdTsyName);
       
   249 	CleanupStack::PushL(tsyField);
       
   250 
       
   251 	tsyField->SetRecordId(modemId);
       
   252 	tsyField->LoadL(*db);
       
   253 
       
   254 	aTsyName = *tsyField;
       
   255 	CleanupStack::PopAndDestroy(3, db); // db, tsyField & globalSettingField
       
   256 	}
       
   257 
       
   258 /** Finds and opens the phone to be used to monitor the network registration status.
       
   259 
       
   260 @leave	Leaves if underlying ETEL.DLL returns error,
       
   261 or if we can't find a suitable Phone or can't open it.
       
   262 */
       
   263 void CNetworkRegistrationStatusMonitor::InitialisePhoneL()
       
   264 	{	
       
   265 	TInt err(KErrNone);
       
   266 	
       
   267 	User::LeaveIfError(iTelServer.Connect());
       
   268 	
       
   269 	// Read the name of the .tsy to load from CommDB
       
   270 	TBuf<KCommsDbSvrMaxFieldLength> tsyName;
       
   271 	GetCommDbTSYnameL(tsyName);
       
   272 
       
   273 	// Load .tsy into ETel
       
   274 	User::LeaveIfError(iTelServer.LoadPhoneModule(tsyName));
       
   275 
       
   276 	// Find available phones; check that the one we requested 
       
   277 	// to be loaded is there.
       
   278 	TInt phoneIndex(0);
       
   279 	User::LeaveIfError(iTelServer.EnumeratePhones(phoneIndex));
       
   280 	while(phoneIndex-->0)
       
   281 		{
       
   282 		TName searchTsyName;
       
   283 		// Check whether this phone belongs to loaded TSY
       
   284 		if ((iTelServer.GetTsyName(phoneIndex, searchTsyName) == KErrNone) 
       
   285 			&& (searchTsyName.CompareF(tsyName) == KErrNone)) 
       
   286 			break;
       
   287 		}
       
   288 		
       
   289 	// Open a phone to be used for monitoring the network registration status.
       
   290 	RTelServer::TPhoneInfo phoneInfo;
       
   291 	User::LeaveIfError(iTelServer.GetPhoneInfo(phoneIndex, phoneInfo));	
       
   292 	User::LeaveIfError(iPhone.Open(iTelServer, phoneInfo.iName));
       
   293 	
       
   294 	// Check that the phone is ready to be used.	
       
   295 	RPhone::TStatus status;
       
   296 	User::LeaveIfError(iPhone.GetStatus(status));
       
   297 	if(status.iModemDetected != RPhone::EDetectedPresent)
       
   298 		{		
       
   299 		err = iPhone.Initialise();
       
   300 		if(err != KErrNone)
       
   301 			{
       
   302 			iPhone.Close();
       
   303 			User::Leave(err);
       
   304 			}
       
   305 		}	
       
   306 
       
   307 	// Check that we can access the info we want
       
   308 	TUint32 networkCaps;
       
   309 	User::LeaveIfError(iPhone.GetNetworkCaps(networkCaps));
       
   310 	if (!(networkCaps & RMobilePhone::KCapsGetRegistrationStatus
       
   311 		  && networkCaps & RMobilePhone::KCapsNotifyRegistrationStatus))
       
   312 		{
       
   313 		err = KErrNotSupported;
       
   314 		}
       
   315 	
       
   316 	User::LeaveIfError(err);
       
   317 	}
       
   318 
       
   319 #ifdef ENABLE_LBS_DEV_LOGGER
       
   320 /** Logging-only function to return a meaningful description of an enum value.
       
   321 */
       
   322 const TDesC& CNetworkRegistrationStatusMonitor::NetRegStatusToDesC(RMobilePhone::TMobilePhoneRegistrationStatus iRegStatus)
       
   323 	{	
       
   324 	switch (iRegStatus)
       
   325 		{
       
   326 		case RMobilePhone::ERegistrationUnknown:
       
   327 			{
       
   328 			_LIT(KRegistrationUnknown, "ERegistrationUnknown");
       
   329 			return KRegistrationUnknown();
       
   330 			}
       
   331 		case RMobilePhone::ENotRegisteredNoService:
       
   332 			{
       
   333 			_LIT(KNotRegisteredNoService, "ENotRegisteredNoService");
       
   334 			return KNotRegisteredNoService();
       
   335 			}
       
   336 		case RMobilePhone::ENotRegisteredEmergencyOnly:
       
   337 			{
       
   338 			_LIT(KNotRegisteredEmergencyOnly, "ENotRegisteredEmergencyOnly");
       
   339 			return KNotRegisteredEmergencyOnly();
       
   340 			}
       
   341 		case RMobilePhone::ENotRegisteredSearching:
       
   342 			{
       
   343 			_LIT(KNotRegisteredSearching, "ENotRegisteredSearching");
       
   344 			return KNotRegisteredSearching();
       
   345 			}
       
   346 		case RMobilePhone::ERegisteredBusy:
       
   347 			{
       
   348 			_LIT(KRegisteredBusy, "ERegisteredBusy");
       
   349 			return KRegisteredBusy();
       
   350 			}
       
   351 		case RMobilePhone::ERegisteredOnHomeNetwork:
       
   352 			{
       
   353 			_LIT(KRegisteredOnHomeNetwork, "ERegisteredOnHomeNetwork");
       
   354 			return KRegisteredOnHomeNetwork();
       
   355 			}
       
   356 		case RMobilePhone::ERegistrationDenied:
       
   357 			{
       
   358 			_LIT(KRegistrationDenied, "ERegistrationDenied");
       
   359 			return KRegistrationDenied();
       
   360 			}
       
   361 		case RMobilePhone::ERegisteredRoaming:
       
   362 			{
       
   363 			_LIT(KRegisteredRoaming, "ERegisteredRoaming");
       
   364 			return KRegisteredRoaming();
       
   365 			}
       
   366 		}
       
   367 	
       
   368 	_LIT(KUnrecognisedRegistrationStatus, "UnrecognisedRegistrationStatus");
       
   369 	return KUnrecognisedRegistrationStatus();
       
   370 	}
       
   371 
       
   372 /** Logging-only function to return a meaningful description of an enum value.
       
   373 */
       
   374 const TDesC& CNetworkRegistrationStatusMonitor::LbsNetRegStatusToDesC(RLbsNetworkRegistrationStatus::TLbsNetworkRegistrationStatus iRegStatus)
       
   375 	{
       
   376 	switch (iRegStatus)
       
   377 		{
       
   378 		case RLbsNetworkRegistrationStatus::ENetworkRegistrationUnknown:
       
   379 			{
       
   380 			_LIT(KNetworkRegistrationUnknown, "ENetworkRegistrationUnknown");
       
   381 			return KNetworkRegistrationUnknown();
       
   382 			}
       
   383 		case RLbsNetworkRegistrationStatus::ENotRegistered:
       
   384 			{
       
   385 			_LIT(KNotRegistered, "ENotRegistered");
       
   386 			return KNotRegistered();
       
   387 			}
       
   388 		case RLbsNetworkRegistrationStatus::ERegisteredHomeNetwork:
       
   389 			{
       
   390 			_LIT(KRegisteredHomeNetwork, "ERegisteredHomeNetwork");
       
   391 			return KRegisteredHomeNetwork();
       
   392 			}
       
   393 		case RLbsNetworkRegistrationStatus::ERegisteredRoamingNetwork:
       
   394 			{
       
   395 			_LIT(KRegisteredRoamingNetwork, "ERegisteredRoamingNetwork");
       
   396 			return KRegisteredRoamingNetwork();
       
   397 			}
       
   398 		}
       
   399 	
       
   400 	_LIT(KUnrecognisedRegistrationStatus, "UnrecognisedRegistrationStatus");
       
   401 	return KUnrecognisedRegistrationStatus();	
       
   402 	}
       
   403 #endif // ENABLE_LBS_DEV_LOGGER
       
   404