bluetooth/btstack/avdtp/avdtp.h
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     1 // Copyright (c) 2003-2009 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 // Defines the avdtp protocol class
       
    15 // 
       
    16 //
       
    17 
       
    18 /**
       
    19  @file
       
    20  @internalComponent
       
    21 */
       
    22 
       
    23 #ifndef AVDTP_H
       
    24 #define AVDTP_H
       
    25 
       
    26 #include <es_prot.h>
       
    27 #include <bt_sock.h>
       
    28 #include <bluetoothav.h>
       
    29 #include "secman.h"
       
    30 #include "notification.h"
       
    31 #include "bt.h"
       
    32 #include "avdtpTransportSession.h"
       
    33 #include "avdtpSEPCache.h"
       
    34 #include "avdtpStream.h"
       
    35 #include "avdtpLocalSEP.h"
       
    36 #include "avdtpAllocators.h"
       
    37 #include <es_prot_internal.h>
       
    38 
       
    39 // Stream and Datagram I/f's are muturally exclusive. You can't have some sockets one
       
    40 // time and some the other -- esock will always give presidence to stream.
       
    41 // don't support graceful close
       
    42 const TUint KAvdtpServiceInfo = KSIInOrder|
       
    43 								KSIDatagram|
       
    44 								KSICanReconnect;
       
    45 #ifdef _OOM_TEST
       
    46 const TInt KAvdtpIdleTimeout = 1000;
       
    47 #undef __ASSERT_DEBUG
       
    48 #define __ASSERT_DEBUG(c,p) 
       
    49 #else
       
    50 const TInt KAvdtpIdleTimeout = 5000000;
       
    51 #endif
       
    52 
       
    53 const TUid KAvdtpUID = {0x100095FE};
       
    54 
       
    55 class CBTProtocolFamily;
       
    56 class CLinkMgrProtocol;
       
    57 class CBTInquiryMgr;
       
    58 class CTransportChannel;
       
    59 class CSignallingChannel;
       
    60 
       
    61 class CAvdtpSAP;
       
    62 class CLogicalChannelFactory;
       
    63 class CAVStream;
       
    64 class CRemoteSEPCache;
       
    65 class CAVStreamStateFactory;
       
    66 
       
    67 NONSHARABLE_CLASS(CAvdtpProtocol) : public CBluetoothProtocolBase
       
    68 	{
       
    69 friend class CAvdtpSAP;
       
    70 
       
    71 public:
       
    72 	// export for protocol
       
    73 	
       
    74 	static CAvdtpProtocol* NewL(CBTSecMan& aSecMan, RBTControlPlane& aControlPlane, CBTCodServiceMan& aCodMan);
       
    75 	static CAvdtpProtocol* NewLC(CBTSecMan& aSecMan, RBTControlPlane& aControlPlane, CBTCodServiceMan& aCodMan);
       
    76 	// From CProtocolBase
       
    77 	// Factories
       
    78 	CServProviderBase* NewSAPL(TUint aSockType);
       
    79 	
       
    80 	void Close();
       
    81 	void Open();
       
    82 	void CloseNow();
       
    83 
       
    84     // From ProtocolManager before all binding.
       
    85 	void InitL(TDesC &aTag);
       
    86 	// From Protocol Manager - after all binding
       
    87 	void StartL();	
       
    88 	// From higher protocol
       
    89 	void BindL(CProtocolBase* aProtocol, TUint aId);
       
    90 	void BindToL(CProtocolBase* aProtocol);	// From Protocol Manager
       
    91 
       
    92 	// Query functions
       
    93 	void Identify(TServerProtocolDesc* aDesc) const;	
       
    94 	static void ProtocolIdentity(TServerProtocolDesc* aDesc);	
       
    95 
       
    96 	// bluetooth protocol overridden functions
       
    97 	TInt StartProtocolListening();
       
    98 
       
    99 	// Get a factory for the logical channels
       
   100 
       
   101 	inline CLogicalChannelFactory& LogicalChannelFactory() const;
       
   102 	TInt SetPreauthorisation(const TBTDevAddr& aPreauthoriseAddress, TBool aSetPreauthorisation);
       
   103 
       
   104 	void StreamCreated(CAVStream& aStream);
       
   105 	CAVStream* FindStream(const TAvdtpSockAddr& aAddr);
       
   106 	void RemoveStream(CAVStream& aStream);
       
   107 	inline const CAVStreamStateFactory& StreamStateFactory() const;
       
   108 
       
   109 	CTransportChannel* GetTransportChannel(const TAvdtpSockAddr& aSockAddr, TBool aUseMux, 
       
   110 											TTCID aRemotelyAssignedTTCID=KInvalidTCID);
       
   111 	CTransportChannel* FindMuxChannel(TTCID aTCID);
       
   112 	CSignallingChannel* GetSignallingChannel(const TBTDevAddr& aDevAddr);
       
   113 	CSignallingChannel* FindSignallingChannel(const TBTDevAddr& aDevAddr);
       
   114 	CSignallingChannel* FindListeningSignallingChannel();
       
   115 	CSignallingChannel* CreateSignallingChannelForListening();
       
   116 	void ConnectSignallingListeners(CSignallingChannel& aConnectedSignallingChannel);
       
   117 	CUserPlaneTransportSession* CreateUserPlaneSessionL(CAvdtpSAP& aSAP,
       
   118 														CAVStream& aStream,
       
   119 														TAvdtpTransportSessionType aType);
       
   120 	
       
   121 	virtual TInt BearerConnectComplete(const TBTDevAddr& aAddr, CServProviderBase* aSAP);
       
   122 
       
   123 	void TransportChannelDown(CTransportChannel& aTransportChannel);
       
   124 	void TransportChannelClosing(CTransportChannel& aTransportChannel);
       
   125 
       
   126 	void SignallingChannelDown(CSignallingChannel& aSignallingChannel);
       
   127 
       
   128 	inline CRemoteSEPCache& RemoteSEPCache() const;
       
   129 	inline TSEIDManager& SEIDManager();
       
   130 	
       
   131 	// secondary SAP management
       
   132 
       
   133 	void AddSecondarySAP(CAvdtpSAP& aSecondarySAP);
       
   134 	CAvdtpSAP* GetSecondarySAP();
       
   135 	
       
   136 	virtual TInt ControlPlaneMessage(TBTControlPlaneMessage aMessage, TAny* aParam);
       
   137 
       
   138 private:
       
   139 	CAvdtpProtocol(CBTSecMan& aSecMan, RBTControlPlane& aControlPlane, CBTCodServiceMan& aCodMan);
       
   140 	~CAvdtpProtocol();
       
   141 	void ConstructL();
       
   142 
       
   143 	CTransportChannel* CreateTransportChannelL(const TBTDevAddr& aAddr, TBool aMuxed);
       
   144 
       
   145 	void QueIdleTimerEntry();
       
   146 	void RemoveIdleTimerEntry();
       
   147 	TBool ShouldClose();
       
   148 	static TInt TryToClose(TAny* aProtocol);
       
   149 	void DestroySecondarySAPs();
       
   150 	void DoStartAvdtpListeningL();
       
   151 
       
   152 private:	
       
   153 	// Singleton objects
       
   154 	CLogicalChannelFactory*	iLogicalChannelFactory;
       
   155 	CAVStreamStateFactory*	iStreamStateFactory;
       
   156 
       
   157 	CRemoteSEPCache*		iRemoteSEPCache;
       
   158 	TDeltaTimerEntry		iIdleTimerEntry;
       
   159 	TBool					iIdleEntryQueued;
       
   160 	
       
   161 	// List of TransportChannels (Direct and Mux)
       
   162 	TDblQue<CTransportChannel>	iTransportChannels;
       
   163 	TDblQue<CTransportChannel>	iClosingTransportChannels;
       
   164 
       
   165 	TDblQue<CSignallingChannel>	iSignallingChannels;
       
   166 	// no closing signalling channel tracking as they perform immediate shutdowns
       
   167 
       
   168 	TDblQue<CAVStream>			iStreams;	// to allow for U-plane sessions to find the stream they belong to
       
   169 		
       
   170 	TSEIDManager				iSEIDManager;
       
   171 	// Q of SAPs waiting for a transport channel to attach to
       
   172 	TSglQue<CAvdtpSAP>  		iSecondarySAPs;
       
   173 	
       
   174 	TBool						iClosePending;
       
   175 	};
       
   176 
       
   177 
       
   178 inline CLogicalChannelFactory& CAvdtpProtocol::LogicalChannelFactory() const
       
   179 	{
       
   180 	return *iLogicalChannelFactory;
       
   181 	}
       
   182 
       
   183 inline CRemoteSEPCache& CAvdtpProtocol::RemoteSEPCache() const
       
   184 	{
       
   185 	return *iRemoteSEPCache;
       
   186 	}
       
   187 	
       
   188 inline TSEIDManager& CAvdtpProtocol::SEIDManager()
       
   189 	{
       
   190 	return iSEIDManager;
       
   191 	}
       
   192 
       
   193 inline const CAVStreamStateFactory& CAvdtpProtocol::StreamStateFactory() const
       
   194 	{
       
   195 	return *iStreamStateFactory;
       
   196 	}
       
   197 
       
   198 
       
   199 #endif