// Copyright (C) 2004 Intel Corporation
#ifndef __HECI_WIN_H__
#define __HECI_WIN_H__

#include <windows.h>
#include "HECI.h"
#define HECI_MAX_LINE_LEN                   300 

static const unsigned long RECEIVE_MESSAGE_DEFAULT_TIMEOUT	=	2000;
static const unsigned long SEND_MESSAGE_DEFAULT_TIMEOUT		=	0xFFFFFFFF;

class HECIWin : public HECI {
public:
	HECIWin(const GUID guid, bool verbose = false);
	virtual ~HECIWin();

	/*
	 * Open the related HECI driver file and connect to the FW HECI Client.
	 *
	 * Return value:
	 *	True on success.
	 */
	virtual bool Init();
	/*
	 * Close the related HECI driver file.
	 *
	 */
	virtual void Deinit();
	/*
	 * Receive a message from the FW HECI client.
	 * Arguments:
	 *	buffer	- holds the message to be read.
	 *  len		- number of bytes to read.
	 *  timeout - timeout for the read operation.
	 * Return value:
	 *	The number of read bytes.
	 */
	virtual int ReceiveMessage(unsigned char *buffer, int len, unsigned long timeout = RECEIVE_MESSAGE_DEFAULT_TIMEOUT);
	
	/*
	 * Send a message to the FW HECI client.
	 * Arguments:
	 *	buffer	- holds the message to be send.
	 *  len		- number of bytes to send.
	 *  timeout - timeout for the send operation.
	 * Return value:
	 *	The number of written bytes.
	 */
	virtual int SendMessage(unsigned char *buffer, int len, unsigned long timeout = SEND_MESSAGE_DEFAULT_TIMEOUT);
	/*
	 * Return the max buffer size of the FW HECI client. 
	 *
	 * Return value:
	 *	The buffer size.
	 */
	virtual unsigned long GetBufferSize() { return _bufSize; }

	//Return the file handle of the HECI driver.
	HANDLE GetHandle();

private:


	//Allow userspace code to communicate with HECI driver.
	int _doIoctl(DWORD code, void *inbuf, int inlen, void *outbuf, int outlen);
	//Return an appropriate message according to the err it gets.
	static TCHAR *_getErrMsg(DWORD err);
	//Display a HECI error message.
	VOID _displayHECIError(UINT32 errorCode,DWORD lastError);
	//Display a HECI data message.
	VOID _displayHECIData(UINT32 messageId);

	//file handle
	HANDLE _handle;
};

#endif