// Copyright (c) 2004-2009 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:

//

/**

 @file

 @internalComponent

*/

#ifndef REMCONSERIALBEARER_H

#define REMCONSERIALBEARER_H

#include <e32base.h>

#include <c32comm.h>

#include <remcon/remconbearerplugin.h>

#include <remcon/remconbearerinterface.h>

#include <remcon/messagetype.h>

/*#ifndef __WINS__

#include <usbman.h>

#endif

*/

#include "sendobserver.h"

#include "receiveobserver.h"

class CSender;

class CReceiver;

/**

Concrete serial bearer.

*/

NONSHARABLE_CLASS(CRemConSerialBearer) : public CRemConBearerPlugin, 

							public MRemConBearerInterface,

							public MSendObserver, 

							public MReceiveObserver

	{

public:

	static CRemConSerialBearer* NewL(TBearerParams& aParams);

	~CRemConSerialBearer();

private: // from CRemConBearerPlugin

	TAny* GetInterface(TUid aUid);

private: // from MRemConBearerInterface

	TInt GetResponse(TUid& aInterfaceUid, 

		TUint& aTransactionId, 

		TUint& aOperationId, 

		RBuf8& aData, 

		TRemConAddress& aAddr);

	TInt SendCommand(TUid aInterfaceUid, 

		TUint aCommand, 

		TUint aTransactionId,  

		RBuf8& aData, 

		const TRemConAddress& aAddr);

	TInt GetCommand(TUid& aInterfaceUid, 

		TUint& aTransactionId, 

		TUint& aCommand, 

		RBuf8& aData, 

		TRemConAddress& aAddr);

	TInt SendResponse(TUid aInterfaceUid, 

		TUint aOperationId, 

		TUint aTransactionId, 

		RBuf8& aData, 

		const TRemConAddress& aAddr);

	void ConnectRequest(const TRemConAddress& aAddr);

	void DisconnectRequest(const TRemConAddress& aAddr);

	void ClientStatus(TBool aControllerPresent, TBool aTargetPresent);

	TSecurityPolicy SecurityPolicy() const;

private: // from MSendObserver

	void MsoSendComplete(TInt aError);

private: // from MReceiveObserver

	void MroReceiveComplete(TInt aError);

private:

	CRemConSerialBearer(TBearerParams& aParams);

	void ConstructL();

private: // utility

	TInt DoSend(TUid aInterfaceUid, 

		TUint aOperationId, 

		RBuf8& aData, 

		TRemConMessageType aMsgType);

	void ConnectL();

	void Receive();

	void ClosePort();

	void DoGetResponseL(TUid& aInterfaceUid, 

		TUint& aOperationId, 

		RBuf8& aData, 

		TRemConAddress& aAddr);

	void DoGetCommandL(TUid& aInterfaceUid,

		TUint& aOperationId, 

		RBuf8& aData, 

		TRemConAddress& aAddr);

private: // owned

/*#ifndef __WINS__

	RUsb iUsb;

#endif

*/	RCommServ iCommServ;

	RComm iComm;

	CSender* iSender;

	CReceiver* iReceiver;

	// The format of a serial bearer message is:

	// 012345678901234567890123456789

	// 0xaaaaaaaa 0xbb XXX YYYYYYYYYY

	// Where 

	//	aaaaaaaa is the interface UID

	//	bb is the operation ID

	//	XXX is Cmd or Rsp

	//	YYYYYYYYYY is any associated data

	// The message is always KRemConSerialBearerMessageLength bytes long.

	static const TUint KRemConSerialBearerMessageLength = 30;

	// The message we may be currently sending.

	TBuf8<KRemConSerialBearerMessageLength> iOutMsg;

	// The message we may be currently receiving.

	TBuf8<KRemConSerialBearerMessageLength> iInMsg;

	// Last received and corrected-decoded message.

	TUid iInterfaceUid;

	TUint iOperationId;

	TRemConMessageType iMsgType;

	TBuf8<10> iData; // This is the length of the associated data in our naive 

	// protocol.

	// The ID of the current transaction- RemCon gives us this, and expects us 

	// to remember it.

	TUint iTransactionId;

	};

#endif // REMCONSERIALBEARER_H