--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/dun/atext/src/DunAtCmdHandler.cpp Mon Jan 18 21:03:15 2010 +0200
@@ -0,0 +1,1652 @@
+/*
+* Copyright (c) 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: AT command handler and notifier
+*
+*/
+
+/*
+ * Points to consider:
+ * - Each of the AT commands sent to ATEXT are converted to upper case form.
+ * Thus the ATEXT plugins don't need to check for case. The conversion to
+ * upper case form stops when carriage return or '=' character is found.
+ */
+
+/*
+ * The AT command handling is splitted to two parts on high level:
+ * 1) Splitter: splitting the sub-commands in a command line to multiple ones
+ * for ATEXT to process.
+ * 2) Combiner: combining the replies coming from ATEXT using a filter
+ * (the filter categories are explained in DunAtCmdPusher.cpp)
+ */
+
+#include "DunAtCmdHandler.h"
+#include "DunAtUrcHandler.h"
+#include "DunDownstream.h"
+#include "DunDebug.h"
+
+const TInt8 KDunCancel = 24;
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CDunAtCmdHandler* CDunAtCmdHandler::NewL(
+ MDunAtCmdStatusReporter* aUpstream,
+ MDunStreamManipulator* aDownstream,
+ const TDesC8* aConnectionName )
+ {
+ CDunAtCmdHandler* self = new (ELeave) CDunAtCmdHandler(
+ aUpstream,
+ aDownstream,
+ aConnectionName );
+ CleanupStack::PushL( self );
+ self->ConstructL();
+ CleanupStack::Pop( self );
+ return self;
+ }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+CDunAtCmdHandler::~CDunAtCmdHandler()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::~CDunAtCmdHandler()") ));
+ ResetData();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::~CDunAtCmdHandler() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Resets data to initial values
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CDunAtCmdHandler::ResetData()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ResetData()") ));
+ // APIs affecting this:
+ // IssueRequest()
+ Stop();
+ // NewL()
+ DeletePluginHandlers();
+ delete iNvramListen;
+ iNvramListen = NULL;
+ delete iModeListen;
+ iModeListen = NULL;
+ delete iEcomListen;
+ iEcomListen = NULL;
+ if ( iAtCmdExtCommon.Handle() )
+ {
+ iAtCmdExtCommon.SynchronousClose();
+ iAtCmdExtCommon.Close();
+ }
+ if ( iAtCmdExt.Handle() )
+ {
+ iAtCmdExt.SynchronousClose();
+ iAtCmdExt.Close();
+ }
+ iSpecials.ResetAndDestroy();
+ iSpecials.Close();
+ // AddCmdModeCallback()
+ iCmdCallbacks.Close();
+ // Internal
+ Initialize();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ResetData() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Adds callback for command mode notification
+// The callback will be called when command mode starts or ends
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CDunAtCmdHandler::AddCmdModeCallback( MDunCmdModeMonitor* aCallback )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddCmdModeCallback()" ) ));
+ if ( !aCallback )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddCmdModeCallback() (aCallback) not initialized!" ) ));
+ return KErrGeneral;
+ }
+ TInt retTemp = iCmdCallbacks.Find( aCallback );
+ if ( retTemp != KErrNotFound )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddCmdModeCallback() (already exists) complete" ) ));
+ return KErrAlreadyExists;
+ }
+ retTemp = iCmdCallbacks.Append( aCallback );
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddCmdModeCallback() (append failed!) complete" ) ));
+ return retTemp;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddCmdModeCallback() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// Parses an AT command
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CDunAtCmdHandler::ParseCommand( TDesC8& aCommand,
+ TBool& aPartialInput )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand()") ));
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand() received:") ));
+ FTRACE(FPrintRaw(aCommand) );
+ iCommand = &aCommand;
+ // Manage partial AT command
+ TBool needsCarriage = ETrue;
+ TBool okToExit = ManagePartialCommand( aCommand, needsCarriage );
+ if ( okToExit )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand() (ok to exit) complete") ));
+ aPartialInput = ETrue;
+ return KErrNone;
+ }
+ if ( iHandleState != EDunStateIdle )
+ {
+ aPartialInput = EFalse;
+ ResetParseBuffers();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand() (not ready) complete") ));
+ return KErrNotReady;
+ }
+ TBool pushStarted = HandleASlashCommand();
+ if ( pushStarted )
+ {
+ // Note: return here with "partial input" status to fool CDunUpstream
+ // into reissuing the read request. The AT command has not really
+ // started yet so this is necessary.
+ aPartialInput = ETrue;
+ ResetParseBuffers();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand() (A/) complete") ));
+ return KErrNone;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand() received total:") ));
+ FTRACE(FPrintRaw(iInputBuffer) );
+ iHandleState = EDunStateAtCmdHandling;
+ iUpstream->NotifyAtCmdHandlingStart();
+ iDecodeInfo.iFirstDecode = ETrue;
+ iDecodeInfo.iDecodeIndex = 0;
+ HandleNextDecodedCommand();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ParseCommand() (not supported) complete") ));
+ aPartialInput = EFalse;
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// Manages request to abort command handling
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CDunAtCmdHandler::ManageAbortRequest()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageAbortRequest()") ));
+ // Just forward the request, do no other own processing
+ TInt retVal = iCmdPusher->ManageAbortRequest();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageAbortRequest() complete") ));
+ return retVal;
+ }
+
+// ---------------------------------------------------------------------------
+// Sets end of command line marker on for the possible series of AT commands.
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CDunAtCmdHandler::SetEndOfCmdLine( TBool aClearInput )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::SetEndOfCmdLine()") ));
+ ManageEndOfCmdHandling( EFalse, ETrue, aClearInput );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::SetEndOfCmdLine() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Stops sending of AT command from parse buffer
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CDunAtCmdHandler::Stop()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::Stop()") ));
+ // Only stop iCmdPusher here, not iUrcHandlers!
+ if ( iHandleState != EDunStateAtCmdHandling )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::Stop() (not ready) complete" )));
+ return KErrNotReady;
+ }
+ iCmdPusher->Stop();
+ iHandleState = EDunStateIdle;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::Stop() complete") ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// Starts URC message handling
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CDunAtCmdHandler::StartUrc()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::StartUrc()") ));
+ TInt i;
+ TInt count = iUrcHandlers.Count();
+ for ( i=0; i<count; i++ )
+ {
+ TInt retTemp = iUrcHandlers[i]->IssueRequest();
+ if ( retTemp!=KErrNone && retTemp!=KErrNotReady )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::StartUrc() (ERROR) complete") ));
+ return retTemp;
+ }
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::StartUrc() complete") ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// Stops URC message handling
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CDunAtCmdHandler::StopUrc()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::StopUrc()") ));
+ TInt i;
+ TInt retVal = KErrNone;
+ TInt count = iUrcHandlers.Count();
+ for ( i=0; i<count; i++ )
+ {
+ retVal = iUrcHandlers[i]->Stop();
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::StopUrc() complete") ));
+ return retVal;
+ }
+
+// ---------------------------------------------------------------------------
+// CDunAtCmdHandler::CDunAtCmdHandler
+// ---------------------------------------------------------------------------
+//
+CDunAtCmdHandler::CDunAtCmdHandler( MDunAtCmdStatusReporter* aUpstream,
+ MDunStreamManipulator* aDownstream,
+ const TDesC8* aConnectionName ) :
+ iUpstream( aUpstream ),
+ iDownstream( aDownstream ),
+ iConnectionName( aConnectionName )
+ {
+ Initialize();
+ }
+
+// ---------------------------------------------------------------------------
+// CDunAtCmdHandler::ConstructL
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::ConstructL()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ConstructL()") ));
+ if ( !iUpstream || !iDownstream || !iConnectionName )
+ {
+ User::Leave( KErrGeneral );
+ }
+ // Connect to AT command extension (must succeed)
+ TInt retTemp = KErrNone;
+ CleanupClosePushL( iAtCmdExt );
+ retTemp = iAtCmdExt.Connect( EDunATExtension, *iConnectionName );
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ConstructL() connect (%d)"), retTemp));
+ User::Leave( retTemp );
+ }
+ CleanupClosePushL( iAtCmdExtCommon );
+ retTemp = iAtCmdExtCommon.Connect( *iConnectionName );
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ConstructL() common connect (%d)"), retTemp));
+ User::Leave( retTemp );
+ }
+ // Create the array of special commands
+ CreateSpecialCommandsL();
+ // Create the plugin handlers
+ CreatePluginHandlersL();
+ // Create the listeners
+ CDunAtEcomListen* ecomListen = CDunAtEcomListen::NewLC( &iAtCmdExt, this );
+ CDunAtModeListen* modeListen = CDunAtModeListen::NewLC( &iAtCmdExtCommon,
+ this );
+ CDunAtNvramListen* nvramListen = CDunAtNvramListen::NewLC( &iAtCmdExt,
+ &iAtCmdExtCommon );
+ // Set the default modes (+report) and characters
+ GetAndSetDefaultSettingsL();
+ // Start listening
+ ecomListen->IssueRequest();
+ modeListen->IssueRequest();
+ nvramListen->IssueRequest();
+ CleanupStack::Pop( nvramListen );
+ CleanupStack::Pop( modeListen );
+ CleanupStack::Pop( ecomListen );
+ CleanupStack::Pop( &iAtCmdExtCommon );
+ CleanupStack::Pop( &iAtCmdExt );
+ iEcomListen = ecomListen;
+ iModeListen = modeListen;
+ iNvramListen = nvramListen;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ConstructL() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Initializes this class
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::Initialize()
+ {
+ // Don't initialize iUpstream here (it is set through NewL)
+ // Don't initialize iDownstream here (it is set through NewL)
+ // Don't initialize iConnectionName here (it is set through NewL)
+ iHandleState = EDunStateIdle;
+ iCarriageReturn = 0;
+ iLineFeed = 0;
+ iBackspace = 0;
+ iCommand = NULL;
+ iDecodeInfo.iFirstDecode = ETrue;
+ iDecodeInfo.iDecodeIndex = KErrNotFound;
+ iDecodeInfo.iPrevChar = 0;
+ iDecodeInfo.iPrevExists = EFalse;
+ iCmdPusher = NULL;
+ iEcomListen = NULL;
+ iModeListen = NULL;
+ iNvramListen = NULL;
+ iDataMode = EFalse;
+ iEchoOn = EFalse;
+ iQuietOn = EFalse;
+ iVerboseOn = EFalse;
+ iEndIndex = KErrNotFound;
+ }
+
+// ---------------------------------------------------------------------------
+// Creates plugin handlers for this class
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::CreatePluginHandlersL()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CreatePluginHandlersL()") ));
+ if ( !iAtCmdExt.Handle() )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CreatePluginHandlersL() complete") ));
+ User::Leave( KErrGeneral );
+ }
+ // First create the command reply pusher
+ CDunAtCmdPusher* cmdPusher = CDunAtCmdPusher::NewLC( &iAtCmdExt,
+ this,
+ iDownstream,
+ &iOkBuffer );
+ // Next create the URC handlers
+ TInt i;
+ TInt numOfPlugins = iAtCmdExt.NumberOfPlugins();
+ for ( i=0; i<numOfPlugins; i++ )
+ {
+ AddOneUrcHandlerL();
+ }
+ CleanupStack::Pop( cmdPusher );
+ iCmdPusher = cmdPusher;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CreatePluginHandlersL() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Creates an array of special commands
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::CreateSpecialCommandsL()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CreateSpecialCommandsL()") ));
+ TInt retTemp = KErrNone;
+ TBool firstSearch = ETrue;
+ for ( ;; )
+ {
+ retTemp = iAtCmdExt.GetNextSpecialCommand( iInputBuffer, firstSearch );
+ if ( retTemp != KErrNone )
+ {
+ break;
+ }
+ HBufC8* specialCmd = HBufC8::NewMaxLC( iInputBuffer.Length() );
+ TPtr8 specialCmdPtr = specialCmd->Des();
+ specialCmdPtr.Copy( iInputBuffer );
+ specialCmdPtr.UpperCase();
+ iSpecials.AppendL( specialCmd );
+ CleanupStack::Pop( specialCmd );
+ }
+ iInputBuffer.Zero();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CreateSpecialCommandsL() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Recreates special command data.
+// This is done when a plugin is installed or uninstalled.
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::RecreateSpecialCommands()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RecreateSpecialCommands()") ));
+ iSpecials.ResetAndDestroy();
+ TRAPD( retTrap, CreateSpecialCommandsL() );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RecreateSpecialCommands() complete") ));
+ return retTrap;
+ }
+
+// ---------------------------------------------------------------------------
+// Gets default settings from RATExtCommon and sets them to RATExt
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::GetAndSetDefaultSettingsL()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetAndSetDefaultSettingsL()") ));
+ // Note: Let's assume command mode is off by default
+ TUint modeSet = GetCurrentModeL( KModeEcho | KModeQuiet | KModeVerbose );
+ iEchoOn = ( modeSet & KEchoModeBase ) ? ETrue : EFalse;
+ iQuietOn = ( modeSet & KQuietModeBase ) ? ETrue : EFalse;
+ iVerboseOn = ( modeSet & KVerboseModeBase ) ? ETrue : EFalse;
+ iCarriageReturn = GetCurrentModeL( KModeCarriage );
+ iLineFeed = GetCurrentModeL( KModeLineFeed );
+ iBackspace = GetCurrentModeL( KModeBackspace );
+ iAtCmdExt.ReportQuietModeChange( iQuietOn );
+ iAtCmdExt.ReportVerboseModeChange( iVerboseOn );
+ iAtCmdExt.ReportCharacterChange( ECharTypeCarriage, iCarriageReturn );
+ iAtCmdExt.ReportCharacterChange( ECharTypeLineFeed, iLineFeed );
+ iAtCmdExt.ReportCharacterChange( ECharTypeBackspace, iBackspace );
+ RegenerateReplyStrings();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetAndSetDefaultSettingsL() settings: E=%d, Q=%d, V=%d"), iEchoOn, iQuietOn, iVerboseOn ));
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetAndSetDefaultSettingsL() settings: CR=%u, LF=%u, BS=%u"), iCarriageReturn, iLineFeed, iBackspace ));
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetAndSetDefaultSettingsL() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Regenerates the reply strings based on settings
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::RegenerateReplyStrings()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateReplyStrings()") ));
+ TBool retVal = EFalse;
+ retVal |= RegenerateOkReply();
+ retVal |= RegenerateErrorReply();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateReplyStrings() complete") ));
+ return retVal;
+ }
+
+// ---------------------------------------------------------------------------
+// Regenerates the ok reply based on settings
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::RegenerateOkReply()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateOkReply()") ));
+ iOkBuffer.Zero();
+ if ( iQuietOn )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateOkReply() (quiet) complete") ));
+ return ETrue;
+ }
+ if ( iVerboseOn )
+ {
+ _LIT8( KVerboseError, "OK" );
+ iOkBuffer.Append( iCarriageReturn );
+ iOkBuffer.Append( iLineFeed );
+ iOkBuffer.Append( KVerboseError );
+ iOkBuffer.Append( iCarriageReturn );
+ iOkBuffer.Append( iLineFeed );
+ }
+ else
+ {
+ _LIT8( KNumericError, "4" );
+ iOkBuffer.Append( KNumericError );
+ iOkBuffer.Append( iCarriageReturn );
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateOkReply() complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Regenerates the error reply based on settings
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::RegenerateErrorReply()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateErrorReply()") ));
+ iErrorBuffer.Zero();
+ if ( iQuietOn )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateErrorReply() (quiet) complete") ));
+ return ETrue;
+ }
+ if ( iVerboseOn )
+ {
+ _LIT8( KVerboseError, "ERROR" );
+ iErrorBuffer.Append( iCarriageReturn );
+ iErrorBuffer.Append( iLineFeed );
+ iErrorBuffer.Append( KVerboseError );
+ iErrorBuffer.Append( iCarriageReturn );
+ iErrorBuffer.Append( iLineFeed );
+ }
+ else
+ {
+ _LIT8( KNumericError, "4" );
+ iErrorBuffer.Append( KNumericError );
+ iErrorBuffer.Append( iCarriageReturn );
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RegenerateErrorReply() complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Gets current mode
+// ---------------------------------------------------------------------------
+//
+TUint CDunAtCmdHandler::GetCurrentModeL( TUint aMask )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetCurrentModeL()") ));
+ TUint maskCheck = aMask & ( ~KSupportedModes );
+ if ( maskCheck != 0 )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetCurrentModeL() (not supported) complete") ));
+ User::Leave( KErrNotSupported );
+ }
+ TUint newMode = 0;
+ TInt retTemp = iAtCmdExtCommon.GetMode( aMask, newMode );
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetCurrentModeL() (ERROR) complete") ));
+ User::Leave( retTemp );
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::GetCurrentModeL() complete") ));
+ return newMode & (KModeChanged-1);
+ }
+
+// ---------------------------------------------------------------------------
+// Instantiates one URC message handling class instance and adds it to the URC
+// message handler array
+// ---------------------------------------------------------------------------
+//
+CDunAtUrcHandler* CDunAtCmdHandler::AddOneUrcHandlerL()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddOneUrcHandlerL()") ));
+ CDunAtUrcHandler* urcHandler = CDunAtUrcHandler::NewLC( &iAtCmdExt,
+ iDownstream );
+ iUrcHandlers.AppendL( urcHandler );
+ CleanupStack::Pop( urcHandler );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AddOneUrcHandlerL() complete") ));
+ return urcHandler;
+ }
+
+// ---------------------------------------------------------------------------
+// Deletes all instantiated URC message handlers
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::DeletePluginHandlers()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::DeletePluginHandlers()") ));
+ delete iCmdPusher;
+ iCmdPusher = NULL;
+ TInt i;
+ TInt count = iUrcHandlers.Count();
+ for ( i=0; i<count; i++ )
+ {
+ delete iUrcHandlers[i];
+ iUrcHandlers[i] = NULL;
+ }
+ iUrcHandlers.Reset();
+ iUrcHandlers.Close();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::DeletePluginHandlers() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Manages partial AT command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::ManagePartialCommand( TDesC8& aCommand,
+ TBool& aNeedsCarriage )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand()") ));
+ aNeedsCarriage = ETrue;
+ // Check length of command
+ if ( aCommand.Length() == 0 )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() (length zero) complete") ));
+ return ETrue;
+ }
+ // Check one character (or unit) based input data
+ if ( aCommand.Length() == KDunChSetMaxCharLen )
+ {
+ EchoCommand( aCommand );
+ // Handle backspace and cancel characters
+ TBool found = HandleSpecialCharacters( aCommand );
+ if ( found )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() (special) complete") ));
+ return ETrue;
+ }
+ }
+ TBool endFound = EFalse;
+ TBool overflow = AppendCommandToInputBuffer( aCommand, endFound );
+ if ( overflow )
+ {
+ // Overflow occurred so return ETrue (consumed) to skip all the rest
+ // characters until carriage return is found
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() (overflow) complete") ));
+ return ETrue;
+ }
+ // If something went wrong, do nothing (return consumed)
+ if ( iInputBuffer.Length() <= 0 )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() (length) complete") ));
+ return ETrue;
+ }
+ // If "A/", no carriage return is needed, check that now
+ if ( IsASlashCommand() )
+ {
+ aNeedsCarriage = EFalse;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() (A/) complete") ));
+ return EFalse;
+ }
+ // For other commands and if no end, just return with consumed
+ if ( !endFound )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() (void) complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManagePartialCommand() complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Echoes a command if echo is on
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::EchoCommand( TDesC8& aDes )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::EchoCommand()") ));
+ if ( aDes.Length() > KDunChSetMaxCharLen )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::EchoCommand() (wrong length) complete") ));
+ return EFalse;
+ }
+ if ( iEchoOn )
+ {
+ iEchoBuffer.Copy( aDes );
+ iDownstream->NotifyDataPushRequest( &iEchoBuffer, NULL );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::EchoCommand() complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::EchoCommand() (not started) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Handles backspace and cancel characters
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::HandleSpecialCharacters( TDesC8& aCommand )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleSpecialCharacters()") ));
+ if ( aCommand.Length() != KDunChSetMaxCharLen )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleSpecialCharacters() (wrong length) complete") ));
+ return EFalse;
+ }
+ if ( aCommand[0] == iBackspace )
+ {
+ TInt bufferLength = iInputBuffer.Length();
+ if ( bufferLength > 0 )
+ {
+ iInputBuffer.SetLength( bufferLength-1 );
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleSpecialCharacters() (backspace) complete") ));
+ return ETrue;
+ }
+ if ( aCommand[0] == KDunCancel )
+ {
+ ResetParseBuffers(); // More processing here?
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleSpecialCharacters() (cancel) complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleSpecialCharacters() complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Appends command to parse buffer
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::AppendCommandToInputBuffer( TDesC8& aCommand,
+ TBool& aEndFound )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AppendCommandToInputBuffer()") ));
+ aEndFound = EFalse;
+ TInt cmdBufIndex = 0;
+ TInt cmdBufLim = aCommand.Length();
+ while ( cmdBufIndex < cmdBufLim )
+ {
+ if ( iInputBuffer.Length() == iInputBuffer.MaxLength() )
+ {
+ // 1) If output is full and end found from input
+ // -> reset buffers and overflow found
+ // 2) If output is full and end not found from input
+ // -> don't reset buffers and overflow found
+ TInt foundIndex = FindEndOfCommand( aCommand );
+ if ( foundIndex >= 0 )
+ {
+ aEndFound = ETrue;
+ ResetParseBuffers();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AppendCommandToInputBuffer() (reset) complete") ));
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AppendCommandToInputBuffer() (overflow) complete") ));
+ return ETrue;
+ }
+ TChar character = aCommand[cmdBufIndex];
+ if ( IsEndOfCommand(character) )
+ {
+ aEndFound = ETrue;
+ iEndIndex = cmdBufIndex;
+ break;
+ }
+ iInputBuffer.Append( aCommand[cmdBufIndex] );
+ cmdBufIndex++;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::AppendCommandToInputBuffer() complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Handles next decoded command from input buffer
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::HandleNextDecodedCommand()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleNextDecodedCommand()") ));
+ if ( iHandleState != EDunStateAtCmdHandling )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleNextDecodedCommand() (not ready) complete") ));
+ return ETrue;
+ }
+ TBool extracted = ExtractNextDecodedCommand();
+ if ( !extracted )
+ {
+ ManageEndOfCmdHandling( ETrue, ETrue, ETrue );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleNextDecodedCommand() (last) complete") ));
+ return ETrue;
+ }
+ // Next convert the decoded AT command to uppercase
+ // Don't check for case status -> let mixed cases pass
+ iParseInfo.iSendBuffer.Copy( iDecodeInfo.iDecodeBuffer );
+ TInt maxLength = iParseInfo.iSendBuffer.MaxLength();
+ TPtr8 upperDes( &iParseInfo.iSendBuffer[0], iParseInfo.iLimit, maxLength );
+ upperDes.UpperCase();
+ // Next always send the command to ATEXT
+ iCmdPusher->IssueRequest( iParseInfo.iSendBuffer );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleNextDecodedCommand() complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Manages end of AT command handling
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::ManageEndOfCmdHandling( TBool aNotifyExternal,
+ TBool aNotifyLocal,
+ TBool aClearInput )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEndOfCmdHandling()") ));
+ if ( iInputBuffer.Length() > 0 )
+ {
+ iLastBuffer.Copy( iInputBuffer );
+ }
+ ResetParseBuffers( aClearInput );
+ iHandleState = EDunStateIdle;
+ if ( aNotifyLocal )
+ {
+ iCmdPusher->SetEndOfCmdLine();
+ }
+ if ( !aNotifyExternal )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEndOfCmdHandling() (no external) complete") ));
+ return;
+ }
+ // Note: here we need to avoid internal recursion when parsing the
+ // multiple IsEndOfCommand() and IsDelimiterCharacter() markers inside the
+ // same upstream block.
+ // Skip all the extra markers except the one we already know to exist.
+ TInt i;
+ TInt startVal = iEndIndex + 1;
+ TInt foundIndex = KErrNotFound;
+ TInt count = iCommand->Length();
+ for ( i=startVal; i<count; i++ )
+ {
+ TChar character = (*iCommand)[i];
+ if ( !(IsEndOfCommand(character)||IsDelimiterCharacter(character)) )
+ {
+ foundIndex = i;
+ break;
+ }
+ }
+ iUpstream->NotifyAtCmdHandlingEnd( foundIndex );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEndOfCmdHandling() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Extracts next decoded command from input buffer to decode buffer
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::ExtractNextDecodedCommand( TBool aPeek )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ExtractNextDecodedCommand()") ));
+ iParseInfo.iLimit = KErrNotFound;
+ TDunDecodeInfo oldInfo = iDecodeInfo;
+ iDecodeInfo.iDecodeBuffer.Zero();
+ // Find start of decode command from input buffer
+ TBool extendedCmd = EFalse;
+ TInt startIndex = iDecodeInfo.iDecodeIndex;
+ startIndex = FindStartOfDecodedCommand( iInputBuffer,
+ startIndex,
+ extendedCmd );
+ if ( startIndex < 0 )
+ {
+ RestoreOldDecodeInfo( aPeek, oldInfo );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ExtractNextDecodedCommand() (no start) complete") ));
+ return EFalse;
+ }
+ // Find end of decode command from input buffer
+ TBool extendedEnd = EFalse;
+ TBool oneCharCmd = EFalse;
+ TBool specialCmd = EFalse;
+ TInt endIndex = KErrNotFound;
+ if ( extendedCmd )
+ {
+ extendedEnd = CheckExtendedCommand( startIndex, endIndex );
+ }
+ else
+ {
+ specialCmd = CheckSpecialCommand( startIndex, endIndex );
+ if ( !specialCmd )
+ {
+ CheckBasicCommand( startIndex, endIndex, oneCharCmd );
+ }
+ }
+ if ( endIndex < startIndex )
+ {
+ RestoreOldDecodeInfo( aPeek, oldInfo );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ExtractNextDecodedCommand() (no end) complete") ));
+ return EFalse;
+ }
+ TInt cmdLength = endIndex - startIndex + 1;
+ // If the limit was not already set then do it now
+ if ( iParseInfo.iLimit < 0 )
+ {
+ iParseInfo.iLimit = cmdLength;
+ }
+ // Next create a new command
+ if ( !iDecodeInfo.iFirstDecode && !oneCharCmd && !specialCmd )
+ {
+ _LIT( KAtMsg, "AT" );
+ iDecodeInfo.iDecodeBuffer.Append( KAtMsg );
+ iParseInfo.iLimit += 2; // Length of "AT"
+ // Note: The length of iDecodeBuffer is not exceeded here because "AT"
+ // is added only for the second commands after that.
+ }
+ TPtrC8 decodedCmd = iInputBuffer.Mid( startIndex, cmdLength );
+ iDecodeInfo.iDecodeBuffer.Append( decodedCmd );
+ // Set index for next round
+ iDecodeInfo.iFirstDecode = EFalse;
+ iDecodeInfo.iDecodeIndex = endIndex + 1;
+ if ( extendedEnd ) // skip the extra ';'
+ {
+ iDecodeInfo.iDecodeIndex++;
+ }
+ RestoreOldDecodeInfo( aPeek, oldInfo );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ExtractNextDecodedCommand() complete") ));
+ return ETrue;
+ }
+
+// ---------------------------------------------------------------------------
+// Restores old decode info. For ExtractNextDecodedCommand() when aPeeks is
+// ETrue.
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::RestoreOldDecodeInfo( TBool aPeek,
+ TDunDecodeInfo& aOldInfo )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RestoreOldDecodeInfo()") ));
+ if ( aPeek )
+ {
+ iDecodeInfo = aOldInfo;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::RestoreOldDecodeInfo() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Finds end of an AT command
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::FindEndOfCommand( TDesC8& aDes, TInt aStartIndex )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::FindEndOfCommand()") ));
+ TInt i;
+ TInt length = aDes.Length();
+ for ( i=aStartIndex; i<length; i++ )
+ {
+ TChar character = aDes[i];
+ if ( IsEndOfCommand(character) )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::FindEndOfCommand() complete (%d)"), i ));
+ return i;
+ }
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::FindEndOfCommand() (not found) complete") ));
+ return KErrNotFound;
+ }
+
+// ---------------------------------------------------------------------------
+// Tests for end of AT command character
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::IsEndOfCommand( TChar& aCharacter )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsEndOfCommand()") ));
+ if ( aCharacter==iCarriageReturn || aCharacter==iLineFeed )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsEndOfCommand() (found) complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsEndOfCommand() (not found) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Finds start of a decoded AT command
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::FindStartOfDecodedCommand( TDesC8& aDes,
+ TInt aStartIndex,
+ TBool& aExtended )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::FindStartOfDecodedCommand()") ));
+ aExtended = EFalse;
+ TInt i;
+ TInt count = aDes.Length();
+ for ( i=aStartIndex; i<count; i++ )
+ {
+ TChar character = aDes[i];
+ if ( IsDelimiterCharacter(character) && !IsOneCharacterCommand(i) )
+ {
+ continue;
+ }
+ if ( !iDecodeInfo.iFirstDecode && IsExtendedCharacter(character) )
+ {
+ aExtended = ETrue;
+ }
+ else if ( iDecodeInfo.iFirstDecode && i+2<count )
+ {
+ // i+2 is the position of '+' in "AT+" and other similar sets
+ character = aDes[i+2];
+ if ( IsExtendedCharacter(character) )
+ {
+ aExtended = ETrue;
+ }
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::FindStartOfDecodedCommand() complete (%d)"), i ));
+ return i;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::FindStartOfDecodedCommand() (not found) complete") ));
+ return KErrNotFound;
+ }
+
+// ---------------------------------------------------------------------------
+// Checks if character is delimiter character
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::IsDelimiterCharacter( TChar aCharacter )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsDelimiterCharacter()") ));
+ if ( aCharacter.IsSpace() || aCharacter==';' || aCharacter==0x00 )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsExtendedCharacter() complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsDelimiterCharacter() (not delimiter) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Checks if character is of extended group
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::IsExtendedCharacter( TChar aCharacter )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsExtendedCharacter()") ));
+ if ( aCharacter=='+' || aCharacter=='&' || aCharacter=='%' ||
+ aCharacter=='\\' || aCharacter=='*' || aCharacter=='#' ||
+ aCharacter=='$' || aCharacter=='^' )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsExtendedCharacter() complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsExtendedCharacter() (not extended) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Checks extended command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::CheckExtendedCommand( TInt aStartIndex, TInt& aEndIndex )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckExtendedCommand()") ));
+ iDecodeInfo.iPrevExists = EFalse;
+ TBool inQuotes = EFalse;
+ TBool endFound = EFalse;
+ TInt length = iInputBuffer.Length();
+ for ( aEndIndex=aStartIndex; aEndIndex<length; aEndIndex++ )
+ {
+ TChar character = iInputBuffer[aEndIndex];
+ if ( character == '"' )
+ {
+ if ( iDecodeInfo.iPrevExists && iParseInfo.iLimit<0 )
+ {
+ iParseInfo.iLimit = aEndIndex - aStartIndex;
+ }
+ inQuotes ^= ETrue; // EFalse to ETrue or ETrue to EFalse
+ iDecodeInfo.iPrevExists = ETrue;
+ iDecodeInfo.iPrevChar = character;
+ continue;
+ }
+ if ( inQuotes )
+ {
+ continue;
+ }
+ // The next ones are those that are not in quotes
+ if ( character == '=' && iParseInfo.iLimit<0 )
+ {
+ iParseInfo.iLimit = aEndIndex - aStartIndex;
+ }
+ if ( IsDelimiterCharacter(character) )
+ {
+ endFound = ETrue;
+ break;
+ }
+ iDecodeInfo.iPrevExists = ETrue;
+ iDecodeInfo.iPrevChar = character;
+ }
+ aEndIndex--;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckExtendedCommand() complete") ));
+ return endFound;
+ }
+
+// ---------------------------------------------------------------------------
+// Checks special command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::CheckSpecialCommand( TInt aStartIndex,
+ TInt& aEndIndex )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckSpecialCommand()") ));
+ TBuf8<KDunInputBufLength> upperBuf;
+ TInt newLength = iInputBuffer.Length() - aStartIndex;
+ upperBuf.Copy( &iInputBuffer[aStartIndex], newLength );
+ upperBuf.UpperCase();
+ TInt i;
+ TInt count = iSpecials.Count();
+ for ( i=0; i<count; i++ )
+ {
+ HBufC8* specialCmd = iSpecials[i];
+ TInt specialLength = specialCmd->Length();
+ if ( newLength < specialLength )
+ {
+ continue;
+ }
+ TInt origLength = newLength;
+ if ( newLength > specialLength )
+ {
+ upperBuf.SetLength( specialLength );
+ }
+ TInt cmpResult = upperBuf.Compare( *specialCmd );
+ upperBuf.SetLength( origLength );
+ if ( cmpResult == 0 )
+ {
+ iParseInfo.iLimit = specialLength;
+ aEndIndex = (origLength-1) + aStartIndex;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckSpecialCommand() complete") ));
+ return ETrue;
+ }
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckSpecialCommand() (not found) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Checks extended command
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::CheckBasicCommand( TInt aStartIndex,
+ TInt& aEndIndex,
+ TBool& aOneCharCmd )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand()") ));
+ aEndIndex = aStartIndex;
+ aOneCharCmd = EFalse;
+ TBool inQuotes = EFalse;
+ TInt length = iInputBuffer.Length();
+ iDecodeInfo.iPrevExists = EFalse;
+ if ( aStartIndex < length )
+ {
+ TChar character = iInputBuffer[aStartIndex];
+ if ( IsOneCharacterCommand(aStartIndex) )
+ {
+ aOneCharCmd = ETrue;
+ // Without "endIndex++" here
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand() (X) complete") ));
+ return KErrNone;
+ }
+ }
+ for ( ; aEndIndex<length; aEndIndex++ )
+ {
+ TChar character = iInputBuffer[aEndIndex];
+ if ( character == '"' )
+ {
+ if ( iDecodeInfo.iPrevExists && iParseInfo.iLimit<0 )
+ {
+ iParseInfo.iLimit = aEndIndex - aStartIndex;
+ }
+ inQuotes ^= ETrue; // EFalse to ETrue or ETrue to EFalse
+ iDecodeInfo.iPrevExists = ETrue;
+ iDecodeInfo.iPrevChar = character;
+ continue;
+ }
+ if ( inQuotes )
+ {
+ continue;
+ }
+ if ( character == '?' )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand() (?) complete") ));
+ return KErrNone;
+ }
+ if ( character.IsSpace() || IsExtendedCharacter(character) )
+ {
+ aEndIndex--;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand() (S or extended) complete") ));
+ return KErrNone;
+ }
+ if ( !iDecodeInfo.iPrevExists )
+ {
+ iDecodeInfo.iPrevExists = ETrue;
+ iDecodeInfo.iPrevChar = character;
+ continue;
+ }
+ if ( IsOneCharacterCommand(aEndIndex) )
+ {
+ aEndIndex--;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand() (one char) complete") ));
+ return KErrNone;
+ }
+ if ( character.IsAlpha() && !iDecodeInfo.iPrevChar.IsAlpha() )
+ {
+ aEndIndex--;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand() (boundary) complete") ));
+ return KErrNone;
+ }
+ iDecodeInfo.iPrevExists = ETrue;
+ iDecodeInfo.iPrevChar = character;
+ }
+ aEndIndex--;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::CheckBasicCommand() (not found) complete") ));
+ return KErrNotFound;
+ }
+
+// ---------------------------------------------------------------------------
+// Check if any one character command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::IsOneCharacterCommand( TInt aIndex )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterCommand()") ));
+ if ( aIndex<0 || aIndex>=iInputBuffer.Length() )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterCommand() (index out of bounds) complete") ));
+ return EFalse;
+ }
+ TChar character = iInputBuffer[aIndex];
+ if ( character==',' || character==';' || character=='@' || character=='!' ||
+ IsOneCharacterACommand(aIndex) )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterCommand() complete") ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterCommand() (not found) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Check if one character "A" command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::IsOneCharacterACommand( TInt aIndex )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterACommand()") ));
+ if ( aIndex<0 || aIndex>=iInputBuffer.Length() )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterACommand() (index out of bounds) complete") ));
+ return EFalse;
+ }
+ if ( iInputBuffer[aIndex]!='a' && iInputBuffer[aIndex]!='A' )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterACommand() (not found) complete") ));
+ return EFalse;
+ }
+ TBool prevAlpha = EFalse;
+ TBool nextAlpha = EFalse;
+ TBool nextSlash = EFalse;
+ TInt length = iInputBuffer.Length();
+ if ( iDecodeInfo.iPrevExists && iDecodeInfo.iPrevChar.IsAlpha() )
+ {
+ prevAlpha = ETrue;
+ }
+ if ( aIndex+1 < length )
+ {
+ TChar nextChar = iInputBuffer[aIndex+1];
+ if ( nextChar.IsAlpha() )
+ {
+ nextAlpha = ETrue;
+ }
+ if ( nextChar == '/' )
+ {
+ nextSlash = ETrue;
+ }
+ }
+ if ( prevAlpha || nextAlpha || nextSlash )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterACommand() (not found) complete") ));
+ return EFalse;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsOneCharacterACommand() (complete) complete") ));
+ return ETrue;
+ }
+
+// ---------------------------------------------------------------------------
+// Check if "A/" command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::IsASlashCommand()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsASlashCommand()") ));
+ if ( iInputBuffer.Length() == 2 )
+ {
+ if ( iInputBuffer[1] == '/' &&
+ (iInputBuffer[0] == 'A' || iInputBuffer[0] == 'a') )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsASlashCommand() (found) complete") ));
+ return ETrue;
+ }
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::IsASlashCommand() (not found) complete") ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Handles "A/" command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::HandleASlashCommand()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleASlashCommand()") ));
+ // If not "A/" command, return
+ if ( !IsASlashCommand() )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleASlashCommand() (no push) complete") ));
+ return EFalse;
+ }
+ // If "A/" command and last buffer exist, set the last buffer as the current buffer
+ if ( iLastBuffer.Length() > 0 )
+ {
+ iInputBuffer.Copy( iLastBuffer );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleASlashCommand() (copy) complete") ));
+ return EFalse;
+ }
+ // Last buffer not set so return "ERROR" if quiet mode not on
+ if ( iQuietOn )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleASlashCommand() (quiet) complete") ));
+ return EFalse;
+ }
+ iDownstream->NotifyDataPushRequest( &iErrorBuffer, NULL );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::HandleASlashCommand() complete") ));
+ return ETrue;
+ }
+
+// ---------------------------------------------------------------------------
+// Resets parse buffers
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::ResetParseBuffers( TBool aClearInput )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ResetParseBuffers()") ));
+ if ( aClearInput )
+ {
+ iInputBuffer.Zero();
+ }
+ iDecodeInfo.iFirstDecode = ETrue;
+ iDecodeInfo.iDecodeIndex = 0;
+ iDecodeInfo.iPrevExists = EFalse;
+ iDecodeInfo.iDecodeBuffer.Zero();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ResetParseBuffers() complete") ));
+ }
+
+// ---------------------------------------------------------------------------
+// Manages command mode change
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::ManageCommandModeChange( TUint aMode )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCommandModeChange()" ) ));
+ if ( aMode & KCommandModeChanged )
+ {
+ if ( aMode & KModeCommand ) // command mode ON
+ {
+ ReportCommandModeChange( ETrue );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCommandModeChange() command mode changed ON" ) ));
+ }
+ else // command mode OFF
+ {
+ ReportCommandModeChange( EFalse );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCommandModeChange() command mode changed OFF" ) ));
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCommandModeChange() (change) complete" ) ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCommandModeChange()" ) ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Reports command mode start/end change
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::ReportCommandModeChange( TBool aStart )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ReportCommandModeChange()" ) ));
+ TInt i;
+ TInt count = iCmdCallbacks.Count();
+ if ( aStart )
+ {
+ if ( iDataMode )
+ {
+ for ( i=0; i<count; i++ )
+ {
+ iCmdCallbacks[i]->NotifyCommandModeStart();
+ }
+ iDataMode = EFalse;
+ }
+ }
+ else // end
+ {
+ if ( !iDataMode )
+ {
+ for ( i=0; i<count; i++ )
+ {
+ iCmdCallbacks[i]->NotifyCommandModeEnd();
+ }
+ iDataMode = ETrue;
+ }
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ReportCommandModeChange() complete" ) ));
+ }
+
+// ---------------------------------------------------------------------------
+// Manages echo mode change
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::ManageEchoModeChange( TUint aMode )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange()" ) ));
+ if ( aMode & KEchoModeChanged )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange() checking echo mode..." ) ));
+ if ( aMode & KModeEcho ) // echo mode ON
+ {
+ iEchoOn = ETrue;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange() echo mode changed ON" ) ));
+ }
+ else // echo mode OFF
+ {
+ iEchoOn = EFalse;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange() echo mode changed OFF" ) ));
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange() (change) complete" ) ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange() complete" ) ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Manages quiet mode change
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::ManageQuietModeChange( TUint aMode )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageQuietModeChange()" ) ));
+ if ( aMode & KQuietModeChanged )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageEchoModeChange() checking quiet mode..." ) ));
+ if ( aMode & KModeQuiet ) // quiet mode ON
+ {
+ iAtCmdExt.ReportQuietModeChange( ETrue );
+ iQuietOn = ETrue;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageQuietModeChange() quiet mode changed ON" ) ));
+ }
+ else // quiet mode OFF
+ {
+ iAtCmdExt.ReportQuietModeChange( EFalse );
+ iQuietOn = EFalse;
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageQuietModeChange() quiet mode changed OFF" ) ));
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageQuietModeChange() (change) complete" ) ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageQuietModeChange() complete" ) ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Manages quiet mode change
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::ManageVerboseModeChange( TUint aMode )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageVerboseModeChange()" ) ));
+ if ( aMode & KVerboseModeChanged )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageVerboseModeChange() checking verbose mode..." ) ));
+ if ( aMode & KModeVerbose ) // verbose mode ON
+ {
+ iAtCmdExt.ReportVerboseModeChange( ETrue );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyVerboseStatusChange() verbose mode changed ON" ) ));
+ }
+ else // verbose mode OFF
+ {
+ iAtCmdExt.ReportVerboseModeChange( EFalse );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyVerboseStatusChange() verbose mode changed OFF" ) ));
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageVerboseModeChange() (change) complete" ) ));
+ return ETrue;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageVerboseModeChange() complete" ) ));
+ return EFalse;
+ }
+
+// ---------------------------------------------------------------------------
+// Manages character change
+// ---------------------------------------------------------------------------
+//
+void CDunAtCmdHandler::ManageCharacterChange( TUint aMode )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCharacterChange()" ) ));
+ if ( aMode & KCarriageChanged )
+ {
+ iCarriageReturn = aMode & (KModeChanged-1);
+ iAtCmdExt.ReportCharacterChange( ECharTypeCarriage, iCarriageReturn );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCharacterChange() carriage return changed" ) ));
+ }
+ else if ( aMode & KLineFeedChanged )
+ {
+ iLineFeed = aMode & (KModeChanged-1);
+ iAtCmdExt.ReportCharacterChange( ECharTypeLineFeed, iLineFeed );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCharacterChange() line feed changed" ) ));
+ }
+ else if ( aMode & KBackspaceChanged )
+ {
+ iBackspace = aMode & (KModeChanged-1);
+ iAtCmdExt.ReportCharacterChange( ECharTypeBackspace, iBackspace );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCharacterChange() backspace changed" ) ));
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::ManageCharacterChange() complete" ) ));
+ }
+
+// ---------------------------------------------------------------------------
+// From class MDunAtCmdPusher.
+// Notifies about end of AT command processing. This is after all reply data
+// for an AT command is multiplexed to the downstream.
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::NotifyEndOfProcessing( TInt /*aError*/ )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyEndOfProcessing()" ) ));
+ HandleNextDecodedCommand();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyEndOfProcessing() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// From class MDunAtCmdPusher.
+// Notifies about request to stop AT command handling for the rest of the
+// command line data
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::NotifyEndOfCmdLineProcessing()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyEndOfCmdLineProcessing()" ) ));
+ TInt retVal = Stop();
+ ManageEndOfCmdHandling( ETrue, EFalse, ETrue );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyEndOfCmdLineProcessing() complete" ) ));
+ return retVal;
+ }
+
+// ---------------------------------------------------------------------------
+// From class MDunAtCmdPusher.
+// Notifies about request to peek for the next command
+// ---------------------------------------------------------------------------
+//
+TBool CDunAtCmdHandler::NotifyNextCommandPeekRequest()
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyNextCommandPeekRequest()") ));
+ TBool extracted = ExtractNextDecodedCommand( ETrue );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyNextCommandPeekRequest() complete") ));
+ return extracted;
+ }
+
+// ---------------------------------------------------------------------------
+// From class MDunAtEcomListen.
+// Notifies about new plugin installation
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::NotifyPluginInstallation( TUid& /*aPluginUid*/ )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginInstallation()" ) ));
+ CDunAtUrcHandler* urcHandler = NULL;
+ TRAPD( retTrap, urcHandler=AddOneUrcHandlerL() );
+ if ( retTrap != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginInstallation() (trapped!) complete" ) ));
+ return retTrap;
+ }
+ TInt retTemp = urcHandler->IssueRequest();
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginInstallation() (issuerequest) complete" ) ));
+ return retTemp;
+ }
+ TUid ownerUid = urcHandler->OwnerUid();
+ iAtCmdExt.ReportListenerUpdateReady( ownerUid, EEcomTypeInstall );
+ // As a last step recreate the special command data
+ retTemp = RecreateSpecialCommands();
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginInstallation() (recreate) complete" ) ));
+ return retTemp;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginInstallation() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// From class MDunAtEcomListen.
+// Notifies about existing plugin uninstallation
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::NotifyPluginUninstallation( TUid& aPluginUid )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginUninstallation()" ) ));
+ TInt i;
+ TInt count = iUrcHandlers.Count();
+ for ( i=count-1; i>=0; i-- )
+ {
+ TUid ownerUid = iUrcHandlers[i]->OwnerUid();
+ if ( ownerUid == aPluginUid )
+ {
+ delete iUrcHandlers[i];
+ iUrcHandlers.Remove( i );
+ iAtCmdExt.ReportListenerUpdateReady( ownerUid,
+ EEcomTypeUninstall );
+ }
+ }
+ // As a last step recreate the special command data
+ TInt retTemp = RecreateSpecialCommands();
+ if ( retTemp != KErrNone )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginUninstallation() (recreate) complete" ) ));
+ return retTemp;
+ }
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyPluginUninstallation() complete" ) ));
+ return KErrNone;
+ }
+
+// ---------------------------------------------------------------------------
+// From class MDunAtModeListen.
+// Gets called on mode status change
+// ---------------------------------------------------------------------------
+//
+TInt CDunAtCmdHandler::NotifyModeStatusChange( TUint aMode )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange()") ));
+ TBool commandModeSet = ManageCommandModeChange( aMode );
+ TBool echoModeSet = ManageEchoModeChange( aMode );
+ TBool quietModeSet = ManageQuietModeChange( aMode );
+ TBool verboseModeSet = ManageVerboseModeChange( aMode );
+ if ( quietModeSet || verboseModeSet )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange() new settings: E=%d, Q=%d, V=%d"), iEchoOn, iQuietOn, iVerboseOn ));
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange() (regenerate) mode set" ) ));
+ RegenerateReplyStrings();
+ return KErrNone;
+ }
+ // Keep the following after "quietModeSet || verboseModeSet" in order to
+ // regenerate the reply also if two modes change at the same time
+ if ( commandModeSet || echoModeSet )
+ {
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange() new settings: E=%d, Q=%d, V=%d"), iEchoOn, iQuietOn, iVerboseOn ));
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange() mode set" ) ));
+ return KErrNone;
+ }
+ ManageCharacterChange( aMode );
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange() new settings: CR=%u, LF=%u, BS=%u"), iCarriageReturn, iLineFeed, iBackspace ));
+ RegenerateReplyStrings();
+ FTRACE(FPrint( _L("CDunAtCmdHandler::NotifyModeStatusChange() complete") ));
+ return KErrNone;
+ }