#include "../stdafx.h"
#include <process.h>
#include "CMMIO_SERIAL.H "
#include <string>

using namespace std;
//////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////
#define LONG_TIMEOUT 5000
#define MAXBLOCK 4096
/*
/////////////////////////////////////////////////////////////////////////////
// Code - Text for debug window
static char Codes[][6] =
{
  "<NUL>","<SOH>","<STX>","<ETX>","<EOT>","<ENQ>","<ACK>","<BEL>",
    "<BS>","<HT>","<LF>","<VT>","<FF>","<CR>","<SO>","<SI>","<DLE>",
    "<DC1>","<DC2>","<DC3>","<DC4>","<NAK>","<SYN>","<ETB>","<CAN>",
    "<EM>","<SUB>","<ESC>","<FS>","<GS>","<RS>","<VS>"
};
*/

/////////////////////////////////////////////////////////////////////////////
// CPSerial() : Constructor

/////////////////////////////////////////////////////////////////////////////
// CSerialTask() : Function to run ReceiveTask() method as a task
//

unsigned int WINAPI CSerialTask(LPVOID CSerialPtr)
{
	TRACE(TEXT("Serial task has started \n"));
	// Call the ControlTask function in the specified plugin
	static_cast<CPSerial*>(CSerialPtr)->ReceiveTask();

	TRACE(TEXT("Serial task has completed \n"));

	_endthreadex(0);

	return (0);
}

CPSerial::CPSerial()
{
	// Serial port is not open
	m_PortHandle = INVALID_HANDLE_VALUE;
	m_IsWrtingData = FALSE;
	// Default port settings
	m_Port = 1;
	m_Baud = CBR_115200;
	m_Parity = 'N';
	m_Bits = 8;
	m_StopBits = 1;
	m_HandShake = CS_HANDSHAKE_FOR_SO7;
	m_RXTimeout = CS_DEFAULT_RX_TIMEOUT;
	m_TXTimeout = CS_DEFAULT_TX_TIMEOUT;
	m_iRecvState = FALSE;
	m_iRecvBytes = 0;
	memset(m_RecvData, 0,MAX_RECIEVE_BUFFER_SIZE);
	// Everything else set to NULL
	m_ThreadHandle = nullptr;
	//m_TXHead = NULL;
	//m_TXTail = NULL;
	//m_RXHead = NULL;
	//m_RXTail  =NULL;
	memset(&m_ReceiveOLap, 0, sizeof(OVERLAPPED));
	memset(&m_TransmitOLap, 0, sizeof(OVERLAPPED));
	memset(&m_ReadOLap, 0, sizeof(OVERLAPPED));
	memset(&m_WriteOLap, 0, sizeof(OVERLAPPED));

	//1、CreateEvent 创建事件。

	//函数原型如下所示，一共四个参数：
	//HANDLE CreateEvent(

	//	LPSECURITY_ATTRIBUTES lpEventAttributes,　// SECURITY_ATTRIBUTES结构指针，可为NULL
	//	BOOL bManualReset,     // 手动/自动
	//										// TRUE：表示手动，在WaitForSingleObject后必须手动调用ResetEvent清除信号
	//									   // FALSE：表示自动，在WaitForSingleObject后，系统自动清除事件信号
	//	BOOL bInitialState,        //初始状态，FALSE为无信号，TRUE为有信号
	//	LPCTSTR lpName         //事件的名称
	//);

	//2、SetEvent：设置为激活触发状态。
	//3、ResetEvent：设置为未激活触发状态。
	//4、WaitForSingleObject：检测信号，如果未激活，代码就会处于挂起状态，不再往下执行。
	//————————————————
	//版权声明：本文为CSDN博主「AI浩」的原创文章，遵循CC 4.0 BY - SA版权协议，转载请附上原文出处链接及本声明。
	//原文链接：https ://blog.csdn.net/hhhhhhhhhhwwwwwwwwww/article/details/108380956


	m_hWaitCMMResponse = CreateEvent(nullptr, TRUE, FALSE, nullptr);
	m_hNewRx = CreateEvent(nullptr, TRUE, FALSE, nullptr); // to trigger OnRx
	m_ReadOLap.hEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);

	//m_RXTempPtr = NULL;
	m_DebugInPtr = 0;
	m_DebugCount = 0;
	m_Item = 0;
	m_MaxTXRetries = 5;
	m_iRecvCount = 252;
	/*
	// CriticalSection for locking lists 
	InitializeCriticalSection( &m_QueueLock );
	InitializeCriticalSection( &m_WriteLock );
	InitializeCriticalSection( &m_ReadLock );
	*/
	//	IsValidBuffer = FALSE;
	CurrentPointer = 0;

	m_hWaitCMMResponse = CreateEvent(nullptr, TRUE, FALSE, nullptr);
	m_hNewRx = CreateEvent(nullptr, TRUE, FALSE, nullptr); // to trigger OnRx
	//	pParent = NULL;
}


/////////////////////////////////////////////////////////////////////////////
// ~CPSerial() : Destructor - Close the port and free up the CriticalSection

CPSerial::~CPSerial()
{
	if (IsOpen())
	{
		TRACE(TEXT("Warning : closing serial port in destructor\n"));
		Close();
	}
	while (GetNextReceived()); // mp 3/3/99 prevents leaks
	/*
	DeleteCriticalSection( &m_QueueLock );
	DeleteCriticalSection( &m_ReadLock );
	DeleteCriticalSection( &m_WriteLock );
	*/
	// close the overlapped io event
	CloseHandle(m_ReadOLap.hEvent);
	CloseHandle(m_WriteOLap.hEvent);
	//
	CloseHandle(m_hWaitCMMResponse);
	CloseHandle(m_hNewRx);
}


/////////////////////////////////////////////////////////////////////////////
// OpenPort() : Opens the serial port using the parameters set by default
//              or a call to SetPort

DWORD CPSerial::Open()
{
	CString PortName;
	COMMTIMEOUTS CommTimeOut;
	int Ok;
	unsigned int ThreadID;

	// Ensure the debug window is registered
	//  RegisterDebugWindow( );

	// Close the port incase it is already open
	Close();

	// Start of assuming the worst
	Ok = FALSE;

	// Format the file name and open it
	// COM<number> opens ports from 1..9 for two-difit ports it's becessary to use \\\\.\\COM<num>
#if 0
  PortName.Format( TEXT("\\\\.\\COM%d"), m_Port );
#else
	PortName.Format(TEXT("COM%d"), m_Port);
#endif
	m_PortHandle = CreateFile(PortName, GENERIC_WRITE | GENERIC_READ, 0, nullptr,
	                          OPEN_EXISTING,
	                          FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
	                          nullptr);
	if (IsOpen())
	{
		// Setup the port according to the stored parameters
		if (ProgramPort(m_Port, m_Baud, m_Parity, m_Bits, m_StopBits, m_HandShake))
		{
			TRACE(_T("CmmIO> Port OPEN %s, m_Baud\n", m_Port, m_Baud), Ok);
			//printf("m_Baud: %d\n", m_Baud);
			// Setup the timeouts
			CommTimeOut.ReadIntervalTimeout = 25;
			CommTimeOut.ReadTotalTimeoutMultiplier = 1;
			CommTimeOut.ReadTotalTimeoutConstant = 1;
			CommTimeOut.WriteTotalTimeoutMultiplier = 1;
			CommTimeOut.WriteTotalTimeoutConstant = m_TXTimeout;
			if (SetCommTimeouts(m_PortHandle, &CommTimeOut))
			{
				// Setup the buffer sizes
				if (SetupComm(m_PortHandle, 2048, 2048))
				{
					// Setup the event masks for the monitoring task
					//	设置你关心的事件, 当此事件发生时, 将得到事件通知, 通过SetCommMask函数设置, SetCommMask函数两个参数, 第一个为串口句柄, 第二个为事件, 可通过位或的方式指定多个事件,如下:
					//	BOOL WINAPI SetCommMask(
					//		__in HANDLE hFile,
					//		__in DWORD dwEvtMask);

					//示例代码:
					//	SetCommMask(m_hCom, EV_RXCHAR);
					//	EV_RXCHAR事件指当输入缓冲区内有数据时, 通过WaitCommEvent函数可获得通知, 其他事件同理, 其他事件还有EV_BREAK / EV_CTS / EV_RING等,

					if (SetCommMask(m_PortHandle, EV_RXCHAR | EV_TXEMPTY | EV_BREAK |
					                EV_CTS | EV_DSR | EV_ERR | EV_RLSD))
					{
						// Initialize the Overlapping structures and start the
						// monitoring task
						m_ReceiveOLap.hEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
						m_TransmitOLap.hEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
						m_ThreadHandle = (HANDLE)_beginthreadex(nullptr, 0, CSerialTask, this,
						                                        0, &ThreadID);
						//Sleep(1000);
						Ok = TRUE;
					}
				}
			}
			// clear msg waiting
			m_iNbMsgWaiting = 0;
		}

		// Things have gone wrong so close the port
		if (Ok == FALSE)
		{
			TRACE(_T("CmmIO> Port OPEN issue -> CLOSED\n"), Ok);
			Close();
		}
	}
	TRACE(_T("CmmIO> Port OPEN  = %d \n"), Ok);
	// Return the state
	return (IsOpen());
}


/////////////////////////////////////////////////////////////////////////////
// IsOpen() : returns true if the serial port is open
//

int CPSerial::IsOpen()
{
	return (m_PortHandle != INVALID_HANDLE_VALUE);
}


/////////////////////////////////////////////////////////////////////////////
// SetPort() : Store the serial settings. If the port is open then these
//             settings are applied now

int CPSerial::SetPort(int Port, int Baud, char Parity, int Bits, int StopBits, int HandShake)
{
	// Use the current settings if the value has the default of 0
	m_Port = Port;
	if (Baud == 0)
		Baud = m_Baud;
	if (Parity == 0)
		Parity = m_Parity;
	if (Bits == 0)
		Bits = m_Bits;
	if (StopBits == 0)
		StopBits = m_StopBits;
	if (HandShake == 0)
		HandShake = m_HandShake;


	// If the values are ok then store them
	if (ProgramPort(Port, Baud, Parity, Bits, StopBits, HandShake))
	{
		m_Port = Port;
		m_Baud = Baud;
		m_Parity = Parity;
		m_Bits = Bits;
		m_StopBits = StopBits;
		m_HandShake = HandShake;
		return (TRUE);
	}
	return (FALSE);
}


/////////////////////////////////////////////////////////////////////////////
// GetPortData() : return the current settings
//

void CPSerial::GetPortData(int* Port, int* Baud, char* Parity, int* Bits, int* StopBits, int* HandShake)
{
	// return the requested settings
	if (Port)
		*Port = m_Port;
	if (m_Baud)
		*Baud = m_Baud;
	if (Parity)
		*Parity = m_Parity;
	if (Bits)
		*Bits = m_Bits;
	if (StopBits)
		*StopBits = m_StopBits;
	if (HandShake)
		*HandShake = m_HandShake;
}

DWORD CPSerial::SendWriteFile(const char* Buffer, DWORD Bytes)
{
	DWORD BytesWritten;
	BOOL WriteState;
	WriteState = WriteFile(m_PortHandle, &Buffer[0], Bytes, &BytesWritten,
	                       &m_WriteOLap);
	return WriteState;
}

/////////////////////////////////////////////////////////////////////////////
// ClosePort() : Close the port and shut down the monitoring thread
//

DWORD CPSerial::Close()
{
	//struct SerialList *Free;
	HANDLE Port;

	// If the port is open then close it
	if (IsOpen())
	{
		Port = m_PortHandle;
		m_PortHandle = INVALID_HANDLE_VALUE;
		CloseHandle(Port);
		if (WaitForSingleObject(m_ThreadHandle, (5 * LONG_TIMEOUT)) != WAIT_OBJECT_0)
			TRACE(TEXT("ERR:Serial port thread failed to terminate\n"));
		m_ThreadHandle = nullptr;
		CloseHandle(m_ReceiveOLap.hEvent);
		CloseHandle(m_TransmitOLap.hEvent);
	}

	CMMIO::Close();
	//ZH
	/*
	// Delete the contents of the temp rx pointer if any
	delete[] m_RXTempPtr;
	m_RXTempPtr = NULL;
  
	// Clear down all internal lists
	EnterCriticalSection( &m_QueueLock );
	while( m_RXHead )
	{
	Free = m_RXHead;
	m_RXHead = m_RXHead->Next;
	delete[] Free->Buffer;
	delete Free;
	}
	m_RXHead = NULL;
	while( m_TXHead )
	{
	Free = m_TXHead;
	m_TXHead = m_TXHead->Next;
	delete[] Free->Buffer;
	delete Free;
	}
	m_TXHead = NULL;
  
	LeaveCriticalSection( &m_QueueLock );
	*/
	return (TRUE);
}


/////////////////////////////////////////////////////////////////////////////
// Send functions //  [8/11/2004]
//

DWORD CPSerial::Send(LPCSTR buffer, int l, BOOL /*needsResponse=FALSE*/)
{
	m_IsWrtingData = TRUE;
	return (WritePort(buffer, static_cast<DWORD>(l)));
}

/*
DWORD CPSerial::Send(CString buffer)
{
char LocBuffer[MAX_OUTPUT_BUFFER_SIZE];
int length = buffer.GetLength ();
if (length >MAX_OUTPUT_BUFFER_SIZE)
{
length = MAX_OUTPUT_BUFFER_SIZE;
}
unsigned short* ptr = (unsigned short*)buffer.GetBuffer (MAX_OUTPUT_BUFFER_SIZE);
for (int i=0;i<length;i++)
{
LocBuffer[i] = (char)(ptr[i] & 0xff);
}
DWORD res = Send(LocBuffer,length);
return res;
}
*/

/////////////////////////////////////////////////////////////////////////////
// WritePort() : Writes the specifed bytes to the serial port
//

DWORD CPSerial::WritePort(const char* Buffer, DWORD Bytes)
{
	DWORD BytesWritten, TotalWritten, Error;
	BOOL WriteState;
	int Retrys;

	TotalWritten = 0;

	// Check that the port is open
	if (IsOpen())
	{
		// Enter a critical section incase this is been used from multiple threads
		//EnterCriticalSection(&m_WriteLock);

		// The following retry loop is required because a TRACE output from NT running
		// in remote debug mode will kill any tranmission on any serial port !!!!!!!
		// don`t you just love NT.
		Retrys = 0;
		do
		{
			Retrys++;
			BytesWritten = 0;
			// Write the data
			WriteState = WriteFile(m_PortHandle, &Buffer[TotalWritten],
			                       Bytes - TotalWritten, &BytesWritten,
			                       &m_WriteOLap);
			if (!WriteState)
			{
				Sleep(5);
				// Ensure the write is going on in the background
				if (GetLastError() == ERROR_IO_PENDING)
				{
					// And wait for it to finish
					WaitForSingleObject(m_WriteOLap.hEvent, LONG_TIMEOUT); // GER
					GetOverlappedResult(m_PortHandle, &m_WriteOLap, &BytesWritten,
					                    FALSE);
				}
				else
				{
					// Gone wrong so clear any erros
					ClearCommError(m_PortHandle, &Error, nullptr);
					BytesWritten = 0;
				}
			}
			TotalWritten += BytesWritten;
		}
		while (Retrys <= m_MaxTXRetries && TotalWritten < Bytes);

		//ZH
		/*
		// Written some bytes so add then to the debug list
		if( BytesWritten )
		AddToDebug( Buffer, BytesWritten, 2 );
		*/
		// Remember to leave the  critical section
		//LeaveCriticalSection( &m_WriteLock );
	}

	return (TotalWritten);
}


/////////////////////////////////////////////////////////////////////////////
//单纯读取单包串口数据，拼包功能在上层实现
int CPSerial::ReadBlock(BYTE* abIn, int MaxLength)
{
	BOOL JudgeRead;
	COMSTAT ComStat;
	DWORD dwErrorFlags, dwLength;
	ClearCommError(m_PortHandle, &dwErrorFlags, &ComStat);
	if (dwErrorFlags > 0)
	{
		//PURGE_TXABORT | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_RXCLEAR
		//分别表示:
		//立即中断写操作并清空输出缓冲区 | 清空输出缓冲区 | 立即中断读操作并清空输入缓冲区 | 清空输入缓冲区
		PurgeComm(m_PortHandle, PURGE_RXABORT | PURGE_RXCLEAR);
		return 0;
	}
	dwLength = (static_cast<DWORD>(MaxLength) < ComStat.cbInQue ? MaxLength : ComStat.cbInQue);
	//memset(abIn, 0, MaxLength);
	//如果有字符即读入, 这种策略下无法解决读入的字符不是完整的一帧的问题
	if (dwLength)
	{
		//BOOL ReadFile(
		//	HANDLE hFile,            //文件的句柄
		//	LPVOID lpBuffer,          //用于保存读入数据的一个缓冲区
		//	DWORD nNumberOfBytesToRead,    //要读入的字节数
		//	LPDWORD lpNumberOfBytesRead,    //指向实际读取字节数的指针
		//	LPOVERLAPPED lpOverlapped
		//	//如文件打开时指定了FILE_FLAG_OVERLAPPED，那么必须，用这个参数引用一个特殊的结构。
		//	//该结构定义了一次异步读取操作。否则，应将这个参数设为NULL
		//);
		JudgeRead = ReadFile(m_PortHandle, abIn, dwLength, &dwLength, &m_ReceiveOLap); //读出字符至abIn处
		if (!JudgeRead)
		{
			//如果重叠操作未完成,等待直到操作完成
			if (GetLastError() == ERROR_IO_PENDING)
			{
				// WaitForSingleObject(m_osRead.hEvent,INFINITE);
				GetOverlappedResult(m_PortHandle, &m_ReceiveOLap, &dwLength, TRUE); //等待一次异步读取完成
				m_ReceiveOLap.Offset = 0;
				// m_osRead.Offset=(m_osRead.Offset+dwLength)%MAXBLOCK;

				//等待一次异步操作超时的情况下，GetOverlappedResult返回FALSE，同时GetLastError返回ERROR_IO_INCOMPLETE
			/*	if (WaitForSingleObject(m_osRead.hEvent, 1000) == WAIT_TIMEOUT)
				{
					dwLength = 0;
				}     */   
			}
			//异常情况
			else
			{
				dwLength = 0;
			}
		}
	}
	return dwLength;
}

int CPSerial::Receive(void* buf, int maxlen, bool sync)
{
	//HANDLE hCom = *(HANDLE*)m_PortHandle;

	if (sync)
	{
		
		//同步方式
		DWORD wCount = maxlen; //成功读取的数据字节数
		BOOL bReadStat = ReadFile(m_PortHandle, //串口句柄
			buf, //数据首地址
			wCount, //要读取的数据最大字节数
			&wCount, //DWORD*,用来接收返回成功读取的数据字节数
			NULL); //NULL为同步发送，OVERLAPPED*为异步发送
		if (!bReadStat)
		{
			return 0;
		}
		return wCount;
	}
	else
	{
		
		//异步方式
		DWORD wCount = maxlen; //成功读取的数据字节数
		DWORD dwErrorFlags; //错误标志
		COMSTAT comStat; //通讯状态
		OVERLAPPED m_osRead; //异步输入输出结构体

		//创建一个用于OVERLAPPED的事件处理，不会真正用到，但系统要求这么做
		memset(&m_osRead, 0, sizeof(m_osRead));
		//m_osRead.hEvent = CreateEvent(NULL, TRUE, FALSE, L"ReadEvent");

		ClearCommError(m_PortHandle, &dwErrorFlags, &comStat); //清除通讯错误，获得设备当前状态
		if (!comStat.cbInQue)return 0; //如果输入缓冲区字节数为0，则返回false

		BOOL bReadStat = ReadFile(m_PortHandle, //串口句柄
			buf, //数据首地址
			wCount, //要读取的数据最大字节数
			&wCount, //DWORD*,用来接收返回成功读取的数据字节数
			&m_osRead); //NULL为同步发送，OVERLAPPED*为异步发送
		if (!bReadStat)
		{
			if (GetLastError() == ERROR_IO_PENDING) //如果串口正在读取中
			{
				//GetOverlappedResult函数的最后一个参数设为TRUE
				//函数会一直等待，直到读操作完成或由于错误而返回
				GetOverlappedResult(m_PortHandle, &m_osRead, &wCount, TRUE);

			/*	memcpy(m_RecvData, buf, wCount);
				m_iRecvBytes = wCount;
				m_iRecvState = true;*/
			}
			else
			{
				ClearCommError(m_PortHandle, &dwErrorFlags, &comStat); //清除通讯错误
				CloseHandle(m_osRead.hEvent); //关闭并释放hEvent的内存
				return 0;
			}
		}
		return wCount;
	}
}

/*
// C prototype : void HexToStr(char *pszDest, byte *pbSrc, int nLen)
// parameter(s): [OUT] pszDest - 存放目标字符串
//	[IN] pbSrc - 输入16进制数的起始地址
//	[IN] nLen - 16进制数的字节数
// return value:
// remarks : 将16进制数转化为字符串
*/
void CPSerial::hex2str(char* pszDest, byte* pbSrc, int nLen)
{
	char ddl, ddh;
	for (int i = 0; i < nLen; i++)
	{
		ddh = 48 + pbSrc[i] / 16;
		ddl = 48 + pbSrc[i] % 16;
		if (ddh > 57) ddh = ddh + 7;
		if (ddl > 57) ddl = ddl + 7;
		pszDest[i * 2] = ddh;
		pszDest[i * 2 + 1] = ddl;
	}

	pszDest[nLen * 2] = '\0';
}

/////////////////////////////////////////////////////////////////////////////
// ReceiveTask() : Internal function, this runs as a thread and provides the
//                 OnRecieve and OnTransmit events
void CPSerial::ReceiveTask(void)
{
	//DWORD BytesWritten;
	DWORD Events;
	unsigned long State;
	int temp_Packlen = 0; //临时存放包长度
	do
	{
		Sleep(3);
		BYTE abIn[MAXBLOCK];
		int len;
		//len = ReadBlock(abIn, MAXBLOCK); //读取一包串口数据
		len = Receive(abIn, MAXBLOCK, 0);//方式2
		if ((len > 0) && (len < MAX_RECIEVE_BUFFER_SIZE))
		{
			//memset(m_RecvData, 0, m_iRecvBytes);
			if (m_bDebug)
			{
				auto pszDest = new char[len * 2 + 1];
				hex2str(pszDest, abIn, len);
				printf("kaishi  len=%d, m_iExpectBytes=%d, %s\n", len, m_iExpectBytes, pszDest); //打印单包数据，每次可以从这里得到单包数据
			}

			// 第一层判断，当前接收正好为期望返回
			if (len == m_iExpectBytes)
			{
				memcpy(m_RecvData, abIn, len);
				m_iRecvBytes = len;
				m_iRecvState = true;

				printf("=====");
				temp_Packlen = 0;
			}

			// 第二层判断，当前接收为期望返回的一部分
			else if (len < m_iExpectBytes)
			{
				memcpy(m_RecvData + temp_Packlen, abIn, len);
				temp_Packlen += len;

				//打印拼包后的数据
				auto pszDest = new char[m_iRecvBytes * 2 + 1];
				hex2str(pszDest, m_RecvData, m_iRecvBytes);
				printf("pinbao = %d %s\n", m_iRecvBytes, pszDest);

				// 第三层判断，当前接收为期望返回的最后一部分
				if (temp_Packlen == m_iExpectBytes)
				{
					m_iRecvBytes = temp_Packlen;
					m_iRecvState = true;

					printf("pinbao========");
				}
			}

			// 第四层判断，当前接收为期望返回的超出部分,以实际接收为准
			else if (len > m_iExpectBytes)
			{
				memcpy(m_RecvData, abIn, len);
				m_iRecvBytes = len;
				m_iRecvState = true;

				printf(">>>>>>>>>>>>========");
				temp_Packlen = 0;
			}
		}


		//   Events=0;
		//
		//   // Wait for a comm event
		//   State=WaitCommEvent(m_PortHandle,&Events,&m_ReceiveOLap);
		//   if(!State)
		//   {
		//     // Since we are using overlapping IO we may have to wait
		//     // for the result
		//     if(GetLastError() == ERROR_IO_PENDING)
		//       GetOverlappedResult(m_PortHandle,&m_ReceiveOLap,&State,TRUE);
		//   }
		////m_iRecvState=FALSE;
		//   // If we have a result then OK otherwise the event was probable
		//   // the serial port being closed and we shall exit the loop
		//   if( State && IsOpen( ) )
		//   {
		//     // Check the events and act accordingly
		//     if( Events & EV_RXCHAR )
		//  {
		//         OnReceive( );
		//  }
		//     //ZH
		//     /*
		//     if( Events & EV_TXEMPTY )
		//     {
		//     if( m_TXHead )
		//     {
		//     GetOverlappedResult(m_PortHandle,&m_TransmitOLap,&BytesWritten,TRUE);
		//     if( BytesWritten )
		//     AddToDebug( m_TXHead->Buffer, BytesWritten, 2 );
		//     OnTransmit( 0, BytesWritten );
		//     SendBuffer(TRUE);
		//     }
		//     }
		//     */
		//     if(Events & EV_BREAK)
		//       TRACE(_T("Break detected\n"));
		//     if(Events & EV_CTS)
		//       TRACE(_T("CTS Changed State\n"));
		//     if(Events & EV_DSR)
		//       TRACE(_T("DSR Changed State\n"));
		//     if(Events & EV_ERR)
		//       TRACE(_T("Line error\n"));
		//     if(Events & EV_RLSD)
		//       TRACE(_T("EV_RLSD error\n"));
		//   }

		// Go round while the port is open
	}
	while (IsOpen());
}



#if 0
void CPSerial::ReceiveTask(void)
{
	//DWORD BytesWritten;
	DWORD Events;
	unsigned long State;
	do
	{
		Events = 0;

		// Wait for a comm event
		State = WaitCommEvent(m_PortHandle, &Events, &m_ReceiveOLap);
		if (!State)
		{
			// Since we are using overlapping IO we may have to wait
			// for the result
			if (GetLastError() == ERROR_IO_PENDING)
				GetOverlappedResult(m_PortHandle, &m_ReceiveOLap, &State, TRUE);
		}
		//m_iRecvState=FALSE;
		// If we have a result then OK otherwise the event was probable
		// the serial port being closed and we shall exit the loop
		if (State && IsOpen())
		{
			// Check the events and act accordingly
			if (Events & EV_RXCHAR)
			{
				OnReceive();
			}
			//ZH
			/*
			if( Events & EV_TXEMPTY )
			{
			if( m_TXHead )
			{
			GetOverlappedResult(m_PortHandle,&m_TransmitOLap,&BytesWritten,TRUE);
			if( BytesWritten )
			AddToDebug( m_TXHead->Buffer, BytesWritten, 2 );
			OnTransmit( 0, BytesWritten );
			SendBuffer(TRUE);
			}
			}
			*/
			if (Events & EV_BREAK)
				TRACE(_T("Break detected\n"));
			if (Events & EV_CTS)
				TRACE(_T("CTS Changed State\n"));
			if (Events & EV_DSR)
				TRACE(_T("DSR Changed State\n"));
			if (Events & EV_ERR)
				TRACE(_T("Line error\n"));
			if (Events & EV_RLSD)
				TRACE(_T("EV_RLSD error\n"));
		}

		// Go round while the port is open
	}
	while (IsOpen());
}
#endif

/////////////////////////////////////////////////////////////////////////////
// OnReceive() : Default OnReceive()
// V114
void CPSerial::OnReceive()
{
	// Dummy OnReceieve if not used
	char s[MAX_RECIEVE_BUFFER_SIZE] = {0};
	s[1] = '\0';
	CurrentPointer = 0;
	int num = 0;
	if (m_HandShake == CS_HANDSHAKE_FOR_TRESASTR_E)
	{
		num = ReadPort(s, MAX_RECIEVE_BUFFER_SIZE);
		if ((num > 0) && (num < MAX_RECIEVE_BUFFER_SIZE))
		{
			if (m_IsWrtingData)
			{
				memset(m_RecvData, 0,MAX_RECIEVE_BUFFER_SIZE);
				m_IsWrtingData = FALSE;
				m_iRecvBytes = 0;
			}
			TRACE1("----RECV%d----\r\n", num);
			TRACE3("%02X %02X %02X ", s[0], s[1], s[2]);
			TRACE3("%02X %02X %02X ", s[3], s[4], s[5]);
			TRACE3("%02X %02X %02X\r\n", s[6], s[7], s[8]);
			for (int i = 0; i < num; i++)
			{
				m_RecvData[m_iRecvBytes++] = s[i];
			}
			m_iRecvState = TRUE;
		}
	}
	else
	{
		num = ReadPort(s, m_iRecvCount);
		printf("----Data received:: %d----\r\n", num);
		if ((num > 0) && (num < MAX_RECIEVE_BUFFER_SIZE))
		{
			// memset(m_RecvData,0,m_iRecvBytes);
			memcpy(m_RecvData, s, num);
			m_iRecvBytes = num;
			m_iRecvState = TRUE;
			for (int i = 0; i < num; i++)
			{
				printf(" %02X ", m_RecvData[i]);
			}
		}
	}
	LineReceive(s, num);
}


/////////////////////////////////////////////////////////////////////////////
// ReadPort() : Read the specifed number of bytes.
//
DWORD CPSerial::ReadPort(char* Buffer, DWORD Bytes)
{
	DWORD BytesRead, Error;
	BOOL ReadState;

	BytesRead = 0;
	// Check the port is open
	if (IsOpen())
	{
		// Enter a critical section incase this is been used from multiple threads
		//  EnterCriticalSection(&m_ReadLock);
		// Start the read
		ReadState = ReadFile(m_PortHandle, Buffer, Bytes, &BytesRead, &m_ReadOLap);
		if (!ReadState)
		{
			Sleep(5);
			// the specifed number of bytes were not available so
			// the read will continue in the background aslong as
			// GetLastError() returns ERROR_IO_PENDING
			if (GetLastError() == ERROR_IO_PENDING)
			{
				// Wait for the read to complete
				WaitForSingleObject(m_ReadOLap.hEvent, LONG_TIMEOUT); // GER

				// get the result of the read
				if (GetOverlappedResult(m_PortHandle, &m_ReadOLap, &BytesRead, FALSE) == 0)
					Error = GetLastError();
			}
			else
			{
				// Gone wrong so clear any erros
				ClearCommError(m_PortHandle, &Error, nullptr);
				BytesRead = 0;
			}
		}

		//ZH
		/*
		// Read some bytes so add then to the debug list
		if( BytesRead )
		AddToDebug( Buffer, BytesRead, 1 );
		*/
		//LeaveCriticalSection( &m_ReadLock );
	}

	return (BytesRead);
}

/////////////////////////////////////////////////////////////////////////////
// ReadPort() : Read the specifed number of bytes into a CString class.
//
#if 0
DWORD CPSerial::ReadPort(CString &Buffer,DWORD Bytes)
{
  DWORD BytesRead;

  USES_CONVERSION;
  BytesRead = ReadPort( T2A(Buffer.GetBuffer( Bytes + 1 )), Bytes );
  Buffer.ReleaseBuffer( );

  return(BytesRead);
}
#endif


/////////////////////////////////////////////////////////////////////////////
// ProgramPort() : Internal function to setup the serial port
//

int CPSerial::ProgramPort(int Port, int Baud, char Parity, int Bits, int StopBits, int HandShake)
{
	CString Param, Params;
	DCB SerialDCB;
	int Ok;

	// Build up the serial port settings
	Params.Format(TEXT("com%d"), Port);
	Param.Format(TEXT(" baud=%d"), Baud);
	Params += Param;
	Param.Format(TEXT(" parity=%c"), Parity);
	Params += Param;
	Param.Format(TEXT(" data=%d"), Bits);
	Params += Param;
	Param.Format(TEXT(" stop=%d"), StopBits);
	Params += Param;
	Ok = FALSE;
	memset(&SerialDCB, 0, sizeof(SerialDCB));
	SerialDCB.DCBlength = sizeof(SerialDCB);

	// Place them in the DCB structure, this also validates them if the
	// serial port is not open
	if (BuildCommDCB(Params, &SerialDCB))
	{
		// If the port is open
		if (IsOpen())
		{
			// Set the handshake bits
			switch (HandShake)
			{
			case CS_HANDSHAKE_RTSCTS:
				SerialDCB.fOutxCtsFlow = TRUE;
				SerialDCB.fRtsControl = RTS_CONTROL_HANDSHAKE;
				SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
				break;
			case CS_HANDSHAKE_RTSCTS_DTRDSR:
				SerialDCB.fOutxCtsFlow = TRUE;
				SerialDCB.fRtsControl = RTS_CONTROL_HANDSHAKE;
				SerialDCB.fOutxDsrFlow = TRUE;
				SerialDCB.fDtrControl = DTR_CONTROL_HANDSHAKE;
				break;
			case CS_HANDSHAKE_XONXOFF:
				SerialDCB.fOutX = TRUE;
				SerialDCB.fInX = TRUE;
				SerialDCB.XonChar = 17;
				SerialDCB.XoffChar = 19;
				SerialDCB.fRtsControl = RTS_CONTROL_DISABLE;
				SerialDCB.fDtrControl = DTR_CONTROL_DISABLE;
				break;
			case CS_HANDSHAKE_NONE:
				SerialDCB.fRtsControl = RTS_CONTROL_ENABLE;
				SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
				break;
			case CS_HANDSHAKE_FOR_SO7:
				SerialDCB.fDsrSensitivity = FALSE;
				SerialDCB.XonChar = 17;
				SerialDCB.XoffChar = 19;
				SerialDCB.fOutX = FALSE;
				SerialDCB.fInX = FALSE;
				SerialDCB.fErrorChar = FALSE;
				SerialDCB.fRtsControl = RTS_CONTROL_ENABLE;
				SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
				SerialDCB.fOutxCtsFlow = FALSE;
				SerialDCB.fOutxDsrFlow = FALSE;
				SerialDCB.XonLim = 2048;
				SerialDCB.XoffLim = 512;
				break;
			case CS_HANDSHAKE_FOR_TRESASTR_E:
				SerialDCB.EofChar = 26;
				SerialDCB.XonChar = 17;
				SerialDCB.XoffChar = 19;
				SerialDCB.fOutX = TRUE;
				SerialDCB.fInX = TRUE;
				SerialDCB.fRtsControl = RTS_CONTROL_DISABLE;
				SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
				SerialDCB.fDsrSensitivity = FALSE;
				SerialDCB.XonLim = 256;
				SerialDCB.XoffLim = 256;
				break;
			default:
				break;
			}

			// Finally apply the params to the port
			if (SetCommState(m_PortHandle, &SerialDCB))
			{
				Ok = TRUE;
			}
			else
			{
				GetCommState(m_PortHandle, &SerialDCB);
				SerialDCB.BaudRate = Baud; // set the baud rate
				SerialDCB.ByteSize = static_cast<BYTE>(Bits); // data size, xmit, and rcv
				SerialDCB.StopBits = static_cast<BYTE>(StopBits); // one stop bit
				switch (Parity)
				{
				case 'O':
				case 'o':
					SerialDCB.Parity = ODDPARITY; // odd parity bit
					break;
				case 'E':
				case 'e':
					SerialDCB.Parity = EVENPARITY; // even parity bit
					break;
				default:
					SerialDCB.Parity = NOPARITY; // no parity bit
					break;
				}
				// Set the handshake bits
				switch (HandShake)
				{
				case CS_HANDSHAKE_RTSCTS:
					SerialDCB.fOutxCtsFlow = TRUE;
					SerialDCB.fRtsControl = RTS_CONTROL_HANDSHAKE;
					SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
					break;
				case CS_HANDSHAKE_XONXOFF:
					SerialDCB.fOutX = TRUE;
					SerialDCB.fInX = TRUE;
					SerialDCB.XonChar = 17;
					SerialDCB.XoffChar = 19;
					SerialDCB.fRtsControl = RTS_CONTROL_DISABLE;
					SerialDCB.fDtrControl = DTR_CONTROL_DISABLE;
					break;
				case CS_HANDSHAKE_NONE:
					SerialDCB.fRtsControl = RTS_CONTROL_ENABLE;
					SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
					break;
				case CS_HANDSHAKE_FOR_SO7:
					SerialDCB.fDsrSensitivity = FALSE;
					SerialDCB.XonChar = 17;
					SerialDCB.XoffChar = 19;
					SerialDCB.fOutX = FALSE;
					SerialDCB.fInX = FALSE;
					SerialDCB.fErrorChar = FALSE;
					SerialDCB.fRtsControl = RTS_CONTROL_ENABLE;
					SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
					SerialDCB.fOutxCtsFlow = FALSE;
					SerialDCB.fOutxDsrFlow = FALSE;
					SerialDCB.XonLim = 2048;
					SerialDCB.XoffLim = 512;
					break;
				case CS_HANDSHAKE_FOR_TRESASTR_E:
					SerialDCB.EofChar = 26;
					SerialDCB.XonChar = 17;
					SerialDCB.XoffChar = 19;
					SerialDCB.fOutX = TRUE;
					SerialDCB.fInX = TRUE;
					SerialDCB.fRtsControl = RTS_CONTROL_DISABLE;
					SerialDCB.fDtrControl = DTR_CONTROL_ENABLE;
					SerialDCB.fDsrSensitivity = FALSE;
					SerialDCB.XonLim = 256;
					SerialDCB.XoffLim = 256;
					break;
				default:
					break;
				}

				// Finally apply the params to the port
				if (SetCommState(m_PortHandle, &SerialDCB))
				{
					Ok = TRUE;
				}
			}
			TRACE(_T("CmmIO> Port was OPEN, ProgramPort done \n"));
		}
		else
		{
			TRACE(_T("CmmIO> Port was not OPEN, Program Port not done!\n"));
			Ok = TRUE;
		}
	}
	return (Ok);
}

/////////////////////////////////////////////////////////////////////////////
// OnTransmit() : Default OnTransmit()
//

void CPSerial::OnTransmit(int /*Item*/, DWORD /*Error*/)
{
	// Dummy OnTransmit if not used
}


/////////////////////////////////////////////////////////////////////////////
// SetTimeouts() : Sets the rx and tx timeouts
//

void CPSerial::SetTimeouts(int RXTimeout, int TXTimeout)
{
	COMMTIMEOUTS CommTimeOut;

	// Store the timeouts
	m_RXTimeout = RXTimeout;
	m_TXTimeout = TXTimeout;

	// If the port is open then configure the port also
	// Currently we only use the Fixed timeouts
	if (IsOpen())
	{
		CommTimeOut.ReadIntervalTimeout = 25;
		CommTimeOut.ReadTotalTimeoutMultiplier = 1;
		CommTimeOut.ReadTotalTimeoutConstant = 0;
		CommTimeOut.WriteTotalTimeoutMultiplier = 0;
		CommTimeOut.WriteTotalTimeoutConstant = m_TXTimeout;
		SetCommTimeouts(m_PortHandle, &CommTimeOut);
	}
}


/////////////////////////////////////////////////////////////////////////////
// AddToDebug() : Add the data to the debug output. State is 1 = rx 2 = tx
//                3 = user

void CPSerial::AddToDebug(const char* /*Ptr*/, DWORD /*BytesToCopy*/, int /*State*/)
{
	//ZH
#if 0
  // We are messing with pointers so use the CriticalSection
  EnterCriticalSection(&m_QueueLock);

  // If ptr = NULL the change to string containing <NULL>
  if( Ptr == NULL )
  {
    BytesToCopy = 0;
    //Ptr = _T("<NULL>");
    Ptr = "<NULL>";
  }

  // If zero length then use length of string instead
  if( BytesToCopy == 0)
    BytesToCopy = strlen( Ptr );

  // If length of data is greater then the debug buffer then just
  // use the end of the data
  if(BytesToCopy > CS_DEBUG_SIZE)
  {
    Ptr += BytesToCopy - CS_DEBUG_SIZE;
    BytesToCopy = CS_DEBUG_SIZE;
  }

  // If the data will wrap around then just copy the first block
  if( ( m_DebugInPtr + BytesToCopy ) > CS_DEBUG_SIZE)
  {
    // Copy data to the end of the debug buffer
    memcpy(m_DebugData + m_DebugInPtr, Ptr, CS_DEBUG_SIZE - m_DebugInPtr);
    memset(m_DebugState + m_DebugInPtr, State, CS_DEBUG_SIZE - m_DebugInPtr);
    m_DebugWnd.AddData( m_DebugData + m_DebugInPtr,
      m_DebugState + m_DebugInPtr,
      CS_DEBUG_SIZE - m_DebugInPtr );

    // Move on by the amount copied
    Ptr += CS_DEBUG_SIZE - m_DebugInPtr;
    BytesToCopy -= CS_DEBUG_SIZE - m_DebugInPtr;

    // Point at the begining of the buffer
    m_DebugInPtr = 0;
  }

  // Copy the rest into the buffer
  memcpy(m_DebugData + m_DebugInPtr, Ptr, BytesToCopy);
  memset(m_DebugState + m_DebugInPtr, State, BytesToCopy);
  m_DebugWnd.AddData( m_DebugData + m_DebugInPtr,
    m_DebugState + m_DebugInPtr, BytesToCopy );
  m_DebugInPtr += BytesToCopy;
  m_DebugCount += BytesToCopy;

  // Keep a count of howmany bytes are in the buffer
  if( m_DebugCount > CS_DEBUG_SIZE )
    m_DebugCount = CS_DEBUG_SIZE;

  // All done so out of the CriticalSection
  LeaveCriticalSection(&m_QueueLock);
#endif
}


/////////////////////////////////////////////////////////////////////////////
// FlushPort() : Removes all characters in the serial buffer
//
/*
int CPSerial::FlushPort(void)
{
int TXTimeout,RXTimeout;
char FlushBuffer[256];
DWORD BytesRead,BytesTotal;
struct SerialList *Free;

if( IsOpen( ) )
{
// We are messing with pointers so use the CriticalSection
EnterCriticalSection(&m_QueueLock);

// Make a copy of the timeouts and set back to the defaults
RXTimeout = m_RXTimeout;
TXTimeout = m_TXTimeout;
SetTimeouts( 10, 10 );

// Read all data from the port
BytesTotal=0;
while( ( BytesRead = ReadPort( FlushBuffer, 256 ) ) == 256 )
BytesTotal+=BytesRead;
BytesTotal+=BytesRead;

// Clear the Received list
while(m_RXHead)
{
Free=m_RXHead;
m_RXHead=m_RXHead->Next;
delete[] Free->Buffer;
delete Free;
}

// put the timeouts back
SetTimeouts( RXTimeout, TXTimeout );

m_iNbMsgWaiting = 0;

// All done so out of the CriticalSection
LeaveCriticalSection(&m_QueueLock);
}
return(BytesTotal);
}
*/

/////////////////////////////////////////////////////////////////////////////
// MaxPort() :
//

int CPSerial::MaxPort()
{
	// return the max port, :-)
	return (8);
}


/////////////////////////////////////////////////////////////////////////////
// Transmit() : Adds data into a list to be transmitted when possible.
//              the function OnTransmit() will be called for each block of
//              data sent.
//

int CPSerial::Transmit(const char* /*Buffer*/, DWORD /*Bytes*/)
{
	/*
	struct SerialList *Ptr;
	int Start;
  
	// Is the port open
	if( IsOpen( ) )
	{
	TRACE(_T("CmmIo> Port OPEN ... transmitting %d bytes \n"),Bytes);
	// Yes so CriticalSection again
	EnterCriticalSection(&m_QueueLock);
	// Create a new list entry structure for the block of data
	Ptr = new struct SerialList;
	Ptr->Buffer = new char[Bytes];
	Ptr->Bytes = Bytes;
	Ptr->Next = NULL;
	Ptr->Item = m_Item++;
	if(Ptr->Item == 0 )
	Ptr->Item = m_Item++;
	memcpy( Ptr->Buffer, Buffer, Bytes );
  
	// Add it into the list
	if( m_TXTail )
	{
	Start = FALSE;
	m_TXTail->Next = Ptr;
	}
	else
	{
	Start = TRUE;
	m_TXHead = Ptr;
	}
	m_TXTail = Ptr;
  
	// If the list was empty then start sending the data, otherwise
	// it will be sentout when the previous data has been sent
	if(Start)
	SendBuffer(FALSE);
  
	// All done so out of the CriticalSection
	LeaveCriticalSection(&m_QueueLock);
  
	//return the ID for this block
	return( Ptr->Item );
	}
	else{
	TRACE(_T("CmmIo> Port NOT OPEN ... FAILED TO TRANSMIT %d bytes \n"),Bytes);
	}
	*/

	return (0);
}

/////////////////////////////////////////////////////////////////////////////
// AddReceived() : Helper function, this adds a block of data to a list which
//                 read back by GetNextReceived()
//

/*
int CPSerial::AddReceived( const char *Buffer,DWORD Bytes)
{
DWORD index = 0; //primary buffer index
struct SerialList *Ptr;
static char Buffer2[1000]; // result buffer
static char* pBuffer2 = &Buffer2[0];
unsigned char c;
bool bArmed;
int count;
static int escape = 0;
static int tilde = 0;
static int tildeseqcount = 0;

bool bDone = false;
bool bEventRequest = false;

//	ATLTRACE("AddReceived> pBuffer2 = %x\n",pBuffer2);
//	ATLTRACE("Content %s\n",Buffer);
if (Bytes==0){
//	TRACE("CMMIO> Exiting , no real input");
return TRUE;
}
do {	
bArmed = false;
for (;index<Bytes;index++){
c=Buffer[index] & 0xff;
//ATLTRACE("== %02x% ==\n",c); //copy char one by one			
if ((c!='\r') && (c!='\n') && bArmed){ // out of CR/LF sequence...
break;
}
else if((c=='\r') || (c=='\n') || (c < 32)){ // Don't work with unprintable characters line 0 -GER
if (index !=0) bArmed = true;// don't make an empty record if LF is first char !
// but still skip it
}
else {			 
*(pBuffer2++) = c ; //copy char one by one
//new
if (tilde){
if(++tildeseqcount == 2) bArmed = true;  
}
if (escape ==1){
if(c!='z' && c!='O')bArmed = true; //not a CLP or PRB
else escape = 0; // reset if part of POS / POINT Msg
}
///n
}

if( c>0x80 ){
++ escape; // max will be 1
//				ATLTRACE("         ESCAPE ___>> %d\n",escape);
}

if( c=='~' ){
++ tilde; // max = 1
//				ATLTRACE("         TILDE ESC___>> %d\n",tilde);
}

}
if (index == Bytes) bDone=true;
//		else TRACE("\nCMMIO> (Serial)Splitting received stream....\n");

// We are messing with pointers so use the CriticalSection
if (bArmed ){
EnterCriticalSection(&m_QueueLock);
//Allocate a new list and add it in
count = pBuffer2-(&Buffer2[0]);
Ptr = new struct SerialList;
Ptr->Buffer = new char[count + 1 ];
Ptr->Bytes = count;
Ptr->Next = NULL;											
memcpy( Ptr->Buffer, Buffer2, count );	
Ptr->Buffer[count] = 0;

memcpy(m_sLastMessage,Buffer2,count);	//copy to last message
m_sLastMessage[count]=0;

if( m_RXTail )
m_RXTail->Next = Ptr;
else
m_RXHead = Ptr;
m_RXTail = Ptr;

// All done so out of the CriticalSection
++m_iNbMsgWaiting;
LeaveCriticalSection( &m_QueueLock );
pBuffer2=&Buffer2[0];  // reset out buffer
count = 0;
escape = 0;
//new
tilde = 0;
tildeseqcount = 0;
///n

bEventRequest = true;
}
} while (!bDone);
//  ATLTRACE ("CMMIO> Done\n");	

//ZH
#if 0
if(bEventRequest){
if (!(pParent->m_bNoFireEvent)) {
//			ATLTRACE("CmmIO Serial> Setting Event m_hNewRx \n");
SetEvent(m_hNewRx);// tell the system to fire event if needed...
}
else {
//			ATLTRACE("CmmIO Serial> Setting Event pParent->m_hCmmResponded \n");
//			SetEvent(pParent->m_hCmmResponded);
}
}
#endif

//	if(bEventRequest){
//		if (pParent){
//			SetEvent(pParent->m_hCmmResponded);
//			}
//		}

//	else ATLTRACE("--- AddReceived> Leaving with part of msg in buffer, pBuffer2= %x\n",pBuffer2);
return(TRUE);
}
*/

/////////////////////////////////////////////////////////////////////////////
// GetNextReceived() : Helper function, receives messages placed in the queue
//                     by AddReceievd()
//
//ZH
/*
char *CPSerial::GetNextReceived(void)
{
struct SerialList *Free;

// If there is a previous block then delete it
delete[] m_RXTempPtr;
m_RXTempPtr = NULL;

// We are messing with pointers so use the CriticalSection
EnterCriticalSection(&m_QueueLock);

// If there any more to return
if( m_RXHead )
{
Free = m_RXHead;
m_RXHead = m_RXHead->Next;

// Point the temp pointer at the block
m_RXTempPtr = Free->Buffer;

// delete the list entry
delete Free;
--m_iNbMsgWaiting; // mp
}
if( m_RXHead == NULL )
m_RXTail = NULL;

// All done so out of the CriticalSection
LeaveCriticalSection( &m_QueueLock );

return( m_RXTempPtr );
}
*/

/////////////////////////////////////////////////////////////////////////////
// HexToInt() : Helper function, converts the specifed number of bytes from
//              ascii hex
//

int CPSerial::HexToInt(char* Data, int Bytes)
{
	int Byte;
	int HexChar, Value;

	Value = 0;
	for (Byte = 0; Byte < Bytes; Byte++)
	{
		Value <<= 4;
		HexChar = *Data++ -= '0';
		if (HexChar > 32)
		{
			HexChar -= 39;
		}
		else if (HexChar > 9)
		{
			HexChar -= 7;
		}

		Value += HexChar;
	}

	return (Value);
}

//字节数据转换为16进制字符串
CString CPSerial::HexToStr(const char* pData, int nLen)
{
	CString str;
	CString strTemp;
	for (int i = 0; i < nLen; i++)
	{
		strTemp.Format(_T(" %02X "), pData[i]);
		str += strTemp;
	}
	return str;
}


//unsigned char CPSerial::HexCharToByte(char ch)
//{
//	if ((ch >= '0') && (ch <= '9'))
//		return ch - '0';
//	if ((ch >= 'A') && (ch <= 'F'))
//		return ch - 'A' + 10;
//	if ((ch >= 'a') && (ch <= 'f'))
//		return ch - 'a' + 10;
//	return 0;
//}

/////////////////////////////////////////////////////////////////////////////
// Private functions
//

/////////////////////////////////////////////////////////////////////////////
// RegisterDebugWindow() : Registers the window class for the debug window.
//
//ZH
/*
void CPSerial::RegisterDebugWindow()
{
// Register the CSerialRaw window for future use
WNDCLASS wndcls;
memset( &wndcls, 0, sizeof( WNDCLASS ) );
wndcls.lpfnWndProc = DefWindowProc;
wndcls.hInstance = AfxGetInstanceHandle( );
wndcls.hCursor = LoadCursor( NULL, IDC_ARROW );
wndcls.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wndcls.style = CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
wndcls.lpszClassName = TEXT("CPSerial");
AfxRegisterClass( &wndcls );
}
*/


#if 0
/////////////////////////////////////////////////////////////////////////////
// SendBuffer() : Internal function, this writes the next block of data
//                queued to the serial port.

void CPSerial::SendBuffer(int Next)
{
  struct SerialList *Free;
  //  DWORD BytesWritten;

  // We are messing with pointers so use the CriticalSection
  EnterCriticalSection(&m_QueueLock);

  // If we been told to go the next then do it
  if(Next && m_TXHead)
  {
    Free=m_TXHead;
    m_TXHead=m_TXHead->Next;
    delete[] Free->Buffer;
    delete Free;

  }

  // If there is still some data then send it
  if(m_TXHead)
    //    WriteFile(m_PortHandle,m_TXHead->Buffer,m_TXHead->Bytes,&BytesWritten,&m_TransmitOLap);
    WritePort(m_TXHead->Buffer,m_TXHead->Bytes);
  else
    m_TXTail=NULL;

  // All done so out of the CriticalSection
  LeaveCriticalSection(&m_QueueLock);
}
#endif