/*

* Copyright (c) 2005-2009 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:  

* Serial Transport

*

*/

#ifndef __SERIAL_H__

#define __SERIAL_H__

/********************************************************************************

 *

 * System Includes

 *

 *******************************************************************************/

#include <c32comm.h>

#include <f32file.h>

#include "MUCCTransport.h"

/********************************************************************************

 *

 * Definitions

 *

 *******************************************************************************/

#define KMaxPacketSize								64

#define KModuleSize									8

#define KReadTimeout								30000000

const char  OPT_DELIMITER	= '|';

#ifndef _TCOMMSTATUS

#define _TCOMMSTATUS

enum TCommStatus { 

	EIdle, 

	EInitialising, 

	EInitialised, 

	EConnecting, 

	EConnected,

	EDisconnecting, 

	EDisconnected, 

	EReleasing, 

	ESendPending,

	EReceivePending,

	ELast

};

#endif

/********************************************************************************

 *

 * Class

 *

 *******************************************************************************/

class CSerialTransport : public MUCCTransport

{

public:

	CSerialTransport();

	static CSerialTransport* NewL( TPtrC16 aModule );

	virtual ~CSerialTransport();

	TInt InitialiseL();

	TInt ConnectL( TDesC *aRemoteHost );

	TInt RequestSend( TDesC8 *aCommandData, const TUint aDataLength );

	TInt RequestReceive( TPtr8 *aRecvBufferPtr, TUint aByteCount );

	TInt Disconnect( void );

	TInt Release( void );

	TText8 *Error( void );

private:

	void ConstructL( TPtrC16 aModule );

	void SetStatus( TCommStatus aNewStatus );

	void ExtractOptions( TDesC *aRemoteHost, TInt& aPortNumber, TInt& aBaudCap, TBps& aBaudRate );

private:

	enum TReadWriteStatus { ENoRW, EWritePending, EReadPending };

private:

	TCommStatus iSerialStatus;

	TBuf16<KModuleSize> iModule;

	TInt iRetries;

	RCommServ iCommServer;

	RComm iCommPort;

	TCommConfig iPortSettings, iOldPortSettings;

	TInt iCommPortOpen, iCommOldSettingsValid;

	TRequestStatus iStatus;	 

};

#endif