bluetooth/btstack/linkmgr/linkmuxer.h
changeset 0 29b1cd4cb562
child 22 9f17f914e828
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bluetooth/btstack/linkmgr/linkmuxer.h	Fri Jan 15 08:13:17 2010 +0200
@@ -0,0 +1,81 @@
+// 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:
+//
+
+#ifndef LINKMUXER_H__
+#define LINKMUXER_H__
+
+#include <e32base.h>
+#include "linkqitem.h"
+#include "linkflowcontrol.h"
+#include "linkutil.h"
+#include <bluetooth/linkmuxnotifier.h>
+#include <bluetooth/hci/hctlchannelobserver.h>
+
+class CHCIFacade;
+class CHCILinkMgr;
+class MHCICommandQueue;
+class CACLDataQController;
+class CLinkMgrProtocol;
+class CHCICmdQController;
+
+/**
+	Regulates the issuing  of buffers send down the same channel.
+
+	The mux decides and notifies the appropriate Q to send data when the wire
+	is free. The mux will need to be fed with 'the wire is free' events and 
+	trigger events that will indicate reception of events (external) 
+	corresponding to the different Qs -(like NumCompletedPackets, Write 
+	Data CommandComplete etc)
+*/
+NONSHARABLE_CLASS(CLinkMuxer) : public CBase
+	{
+public:
+	static CLinkMuxer* NewL(CLinkMgrProtocol& aLinkMgrProtocol, CHCIFacade& aHCIFacade);
+	void ObtainHostControllerBufferSizeL();
+	void RecordHostControllerToHostFlowControl(TBool aFlowFlag);
+	CACLDataQController* HandleLocalReadBufferSizeResult(TUint16 aAclMaxLen,
+      TUint8 /*aScoMaxLen*/,TUint16 aNoACL,TUint16 /*aNoSCO*/);
+	TInt ACLPacketMTU() const;
+
+	CACLDataQController& DataQController() const {return *iDataController;};
+	void ChannelsFree(THCITransportChannel aChannel); // notification of free channels
+	void ChannelsClosed(THCITransportChannel aChannel); // notification of closed channels
+	static TInt TryToSendCallBackStatic(TAny* aCLinkMuxer);
+	void TryToSend();	// request to send on certain channels
+#ifdef STACK_SCO_DATA
+	TBool CanWriteSCOData();
+#endif
+	~CLinkMuxer();
+
+private:
+	void DataTrigger();
+	void CommandTrigger();
+	void ConstructL();
+	CLinkMuxer(CLinkMgrProtocol& aLinkMgrProtocol, CHCIFacade& aHCIFacade);
+	void DoSend(/*THCITransportChannel aChannel*/);	// request to send on certain channels
+private:
+// owned resources
+	CHCICmdQController*	iCommandController;
+	CACLDataQController* iDataController;
+	CAsyncCallBack*			iSendCallBack;
+// non-owned resources
+	CHCIFacade&				iHCIFacade;
+	THCITransportChannel	iChannelsFree;
+    TFlowControlMode		iFlowControlMode;
+	CLinkMgrProtocol&		iLinkMgrProtocol;
+	TInt					iACLPacketMTU;
+	};
+
+#endif