--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/connectivitylayer/isce/ismpmultiplexer_dll/inc/mux.h Fri Nov 06 17:28:23 2009 +0000
@@ -0,0 +1,133 @@
+/*
+* 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 the License "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:
+*
+*/
+
+
+
+#ifndef __MUX_H__
+#define __MUX_H__
+
+// Class declarations
+class MMuxTrxIf;
+class MMuxLinkIf;
+
+#include <MTrxMuxIf.h> // For exported MTrxMuxIf
+
+#include "iscedefs.h" // For EMuxAmountOfProtocols
+#include "MLinkMuxIf.h" // For internal MLinkMuxIf
+
+/*
+* Class represents a multiplexer.
+* De-multiplexes data from one transceiver to multiple protocol links.
+* Multiplexes data from multiple protocol links to one transceiver.
+*/
+NONSHARABLE_CLASS( DMux ) : public DBase, public MTrxMuxIf, public MLinkMuxIf
+ {
+
+ public:
+
+ /*
+ * Default constructor
+ * @param aTrxId, transceivers id
+ */
+ DMux( const TUint8 aTrxId );
+
+ /*
+ * Destructor
+ */
+ ~DMux();
+
+ /*
+ * Returns unique id of the transceiver where this multiplexer is connected.
+ *@return unique transceiver id
+ */
+ TUint8 GetTrxId() const;
+
+ /*
+ * Set link with unique link
+ * @return unique transceiver id
+ */
+ void SetLink( MMuxLinkIf* aLink, const TUint8 aLinkId );
+
+ /*
+ * Set transceiver
+ *@param pointer to transceivers interface
+ */
+ void SetTrx( MMuxTrxIf* aTrx );
+
+ // From MTrxMuxIf start
+ /*
+ * See comments from MTrxMuxIf.
+ */
+ TDes8& AllocateBlock( const TUint16 aSize );
+
+ /*
+ * See comments from MTrxMuxIf.
+ */
+ void DeallocateBlock( TDes8& aBlock );
+
+ /*
+ * See comments from MTrxMuxIf.
+ * @param aData, data to be de-multiplexed to approriate protocol link accorind to aMuxingHeader
+ * @param aMuxingHeader, 32-bit multiplexing protocol header, implementation obeys MeXe Modem-Host communication protocol L2
+ */
+ void Receive( TDes8& aData, const TUint32 aMuxingHeader );
+
+ /*
+ * See comments from MTrxMuxIf.
+ */
+ void Unregister();
+ // From MTrxMuxIf end
+
+ // From MLinkMuxIf
+
+ /*
+ * See comments from MLinkMuxIf.
+ * Multiplexer shall obey MeXe Modem-Host communication protocol L2
+ * @param aMsg, message to be multiplexed
+ * @param aMuxingHeaderProtocolId, unique multiplexing header protocol id, implementation obeys MeXe Modem-Host communication protocol L2
+ * @param aPriority, priority of the message multiplexer shall map priority from link to transceiver
+ */
+ void Send( TDes8& aMsg, const TUint8 aMuxingHeaderProtocolId, const TMessageSendPriority aPriority = EPriorityNormal );
+ // From MLinkMuxIf
+
+ private:
+
+ /*
+ * Called when transceiver is either registered or unregistered.
+ * @param aPresent, true if registered
+ */
+ void NotifyTrxStatusChangeToAllLinks( TBool aPresent );
+
+ private:
+
+ // Added convention:
+ // Prefix "iSh" means shared member variable
+ // Prefix "gSh" means shared global variable
+
+ // Guards class shared states of this class, owned
+ NFastMutex* iFastMutex;
+ // Each multiplexer can have 1..N protocols, not owned
+ MMuxLinkIf* iShLinks[ EMuxAmountOfProtocols ];
+ // Each multiplexer can have 1 transceiver, not ownet
+ MMuxTrxIf* iShTrx;
+ // Transceivers unique identifier
+ TUint8 iShTrxId;
+
+ };
+
+
+#endif /* __MUX_H__ */