BOOL ConnPort::ClosePort()
{
g_iExitFlag=1;
while(1)
{
static int iTimeoutCount=0;
Sleep(10);
if(40==iTimeoutCount)
{
TerminateThread(m_hThreadRead,0);
TerminateThread(m_hThreadWrite,0);
TerminateThread(m_hDataParse,0);
break;
}
else if(1==g_rExitFlag && 1==g_wExitFlag && 1==g_pExitFlag)
{
break;
}
else
{
iTimeoutCount++;
}
}
EscapeCommFunction(m_hPort,CLRRTS);
EscapeCommFunction(m_hPort,CLRDTR);
SetCommMask(m_hPort,0);
if(NULL==m_hPort)return FALSE;
if(NULL==m_hThreadRead)return FALSE;
if(NULL==m_hThreadWrite)return FALSE;
if(NULL==m_hDataParse)return FALSE;
if(!CloseHandle(m_hPort))return FALSE;
if(!CloseHandle(m_hThreadRead))return FALSE;
if(!CloseHandle(m_hThreadWrite))return FALSE;
if(!CloseHandle(m_hDataParse))return FALSE;
m_bIsConnect=FALSE;
return TRUE;
}
// 关闭串口
_XBool _XSerialPort::close()
{
if(!m_bOpened || m_hIDComDev == NULL) return XTrue;
if(m_overlappedRead.hEvent != NULL) CloseHandle(m_overlappedRead.hEvent);
if(m_overlappedWrite.hEvent != NULL) CloseHandle(m_overlappedWrite.hEvent);
if(m_mode == SP_MODE_AUTO) //自动模式的时候开启线程
{
m_threadState = STATE_SET_TO_END;
SetCommMask(m_hIDComDev,0);
while(1)
{//等待线程结束
if(m_threadState == STATE_END) break;
Sleep(1);
}
}
CloseHandle(m_hIDComDev);
m_bOpened = XFalse;
m_hIDComDev = NULL;
return XTrue;
}
void ConnPort::ResetComStatues()
{
m_rCount=0;
m_wCount=0;
m_bHexShow=FALSE;
TerminateThread(m_hThreadRead,0);
TerminateThread(m_hThreadWrite,0);
TerminateThread(m_hDataParse,0);
EscapeCommFunction(m_hPort,CLRRTS);
EscapeCommFunction(m_hPort,CLRDTR);
SetCommMask(m_hPort,0);
CloseHandle(m_hPort);
CloseHandle(m_hThreadRead);
CloseHandle(m_hThreadWrite);
CloseHandle(m_hDataParse);
m_bIsConnect=FALSE;
}
/*******************************************************************************
** Author: Bill Theisen
** Purpose: Closes the serial port by setting flag to stop ReadThread and signaling
** the EXIT_EVENT to cause WaitCommEvent to stop pending. Then waits for
** ReadThread to exit.
** Comments:
*******************************************************************************/
void DOIrisSerialPort::ClosePort( void )
{
if( m_bReadThreadIsRunning ){
// Set flag for exit and signal exit event so
// that WaitCommEvent() stops pending
m_bStopReadThread = TRUE;
SetCommMask(m_hPort, EXIT_EVENT);
while( m_bReadThreadIsRunning ) {
Sleep(200);
}
}
//m_critSecWritePort.Lock();
if(m_hPort != INVALID_HANDLE_VALUE)
CloseHandle( m_hPort );
m_hPort = INVALID_HANDLE_VALUE;
//m_critSecWritePort.Unlock();
}
// Habilitacion y programacion del puerto serie
int CComm32::OpenComm()
{
if (m_OnOpen) return ERROR_ALREADY_INITIALIZED;
m_HPort=CreateFile(m_Name,GENERIC_READ+GENERIC_WRITE,
0,NULL,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,0);
if (m_HPort==INVALID_HANDLE_VALUE)
return GetLastError();
m_OnOpen=true;
if (GetFileType(m_HPort)!=FILE_TYPE_CHAR)
{
CloseHandle(m_HPort);
return ERROR_OPEN_FAILED;
}
m_Read_Overlapped.hEvent=CreateEvent(NULL,true,true,NULL);
if (m_Read_Overlapped.hEvent==0)
{
CloseAll();
return GetLastError();
}
m_Write_Overlapped.hEvent=CreateEvent(NULL,true,true,NULL);
if (m_Write_Overlapped.hEvent==0)
{
CloseAll();
return GetLastError();
}
GetCommProperties(m_HPort,&m_CommProp);
SetCommMask(m_HPort,m_EvtMask);
SetCommTimeouts(m_HPort,&m_CommTimeOuts);
GetCommModemStatus(m_HPort,&m_ModemStat);
DWORD size=sizeof(COMMCONFIG);
GetCommConfig(m_HPort,&m_CommConfig,&size);
return 0;
}
BOOL CSerialPort::Open(LPCTSTR PortName, DWORD BaudRate, BYTE ByteSize, BYTE Parity, BYTE StopBits, DWORD DesiredAccess)
{
Close();
m_PortHandle = CreateFile(PortName, DesiredAccess, 0, NULL, OPEN_EXISTING, 0, 0);
if (m_PortHandle != INVALID_HANDLE_VALUE)
{
DCB dcb;
CString s;
dcb.DCBlength = sizeof(dcb);
GetCommState(m_PortHandle, &dcb);
dcb.BaudRate = BaudRate;
dcb.ByteSize = ByteSize;
dcb.StopBits = StopBits;
dcb.Parity = Parity;
dcb.fDsrSensitivity = 0;
dcb.fOutxCtsFlow = 0;
dcb.fOutxDsrFlow = 0;
dcb.fInX = 0;
dcb.fOutX = 0;
dcb.fDtrControl = DTR_CONTROL_DISABLE; //DTR and RTS 0
dcb.fRtsControl = RTS_CONTROL_DISABLE;
SetCommState(m_PortHandle, &dcb);
COMMTIMEOUTS touts;
touts.ReadIntervalTimeout = 0;
touts.ReadTotalTimeoutMultiplier = 0;
touts.ReadTotalTimeoutConstant = 10;
touts.WriteTotalTimeoutConstant = 10;
touts.WriteTotalTimeoutMultiplier = 0;
SetCommTimeouts(m_PortHandle, &touts);
SetCommMask (m_PortHandle, EV_CTS | EV_DSR | EV_RING | EV_RLSD);
PurgeComm(m_PortHandle, PURGE_TXCLEAR | PURGE_RXCLEAR);
return TRUE;
}
else
{
return FALSE; // Use GetLastError() to know the reason
}
}
void EIO_Set(uv_work_t* req) {
SetBaton* data = static_cast<SetBaton*>(req->data);
if (data->rts) {
EscapeCommFunction((HANDLE)data->fd, SETRTS);
} else {
EscapeCommFunction((HANDLE)data->fd, CLRRTS);
}
if (data->dtr) {
EscapeCommFunction((HANDLE)data->fd, SETDTR);
} else {
EscapeCommFunction((HANDLE)data->fd, CLRDTR);
}
if (data->brk) {
EscapeCommFunction((HANDLE)data->fd, SETBREAK);
} else {
EscapeCommFunction((HANDLE)data->fd, CLRBREAK);
}
DWORD bits = 0;
GetCommMask((HANDLE)data->fd, &bits);
bits &= ~(EV_CTS | EV_DSR);
if (data->cts) {
bits |= EV_CTS;
}
if (data->dsr) {
bits |= EV_DSR;
}
if (!SetCommMask((HANDLE)data->fd, bits)) {
ErrorCodeToString("Setting options on COM port (SetCommMask)", GetLastError(), data->errorString);
return;
}
}
/*------------------------------------------------------------------------------------------------------------------
-- FUNCTION: Transfer_Packet
--
-- DATE: November 25, 2015
--
-- REVISIONS: (Date and Description)
--
-- DESIGNER: Ruoqi Jia
--
-- PROGRAMMER: Ruoqi Jia
--
-- INTERFACE: Transfer_Packet(LPVOID packet)
-- -LPVOID packet : the packet to be sent
--
-- RETURNS: 0 upon successful thread finish
--
-- NOTES:
-- Represents the sending state of the wireless protocol design. This thread is called whenever a user chooses a
-- file to send and presses the Send button. We confirm the line to make sure the line is available. If confirm line
-- times out, we bring the protocol back to the Wait state to wait for an ENQ, and re-initialize the read thread. If
-- confirm line succeeds, we send our packet using SendPacket. When SendPacket succeeds or times out, we do a check
-- on the priority states of the sender and receiver. If we don't have priority and the sender has priority, we enter
-- the wait state again to wait for an ENQ, otherwise we will just go directly to the read idle state. Finally, we
-- reinitialize the read thread and return from this write thread.
----------------------------------------------------------------------------------------------------------------------*/
DWORD WINAPI Transfer_Packet(LPVOID packet)
{
ResetEvent(Ev_Read_Thread_Finish);
SetCommMask(hComm, RETURN_COMM_EVENT);
WaitForSingleObject(hWrite_Lock, 2000);
char* s = (char*)packet;
OutputDebugString("Starting confirm line loop\n");
if (!ConfirmLine())
{
OutputDebugString("exceeded confirm line max tries\n");
//WAIT STATE: wait for an enq, for a specified amount of time. If we get one, set
//the receivedENQinWait boolean flag to skip directly to acknowledging line in read thread
receivedENQinWait = WaitForEnq();
ReleaseMutex(hWrite_Lock);
Initialize_Read();
SetEvent(Ev_Send_Thread_Finish);
delete[]s;
return 0;
}
OutputDebugString("Sending packet\n");
SendPacket(s);
//Check Priorities
//only when we want priority and sender doesn't want priority, we go directly to read idle. every other priority combo,
//we go to wait state
if ((!weHavePriority && senderHasPriority) || (weHavePriority && senderHasPriority) || (!weHavePriority && !senderHasPriority))
{
//WAIT STATE: wait for an enq, for a specified amount of time. If we get one, set
//the receivedENQinWait boolean flag to skip directly to acknowledging line in read thread
OutputDebugString("Going to wait state\n");
receivedENQinWait = WaitForEnq();
}else
SetEvent(Ev_Send_Thread_Finish);
//going back to wait/idle state
ReleaseMutex(hWrite_Lock);
Initialize_Read();
delete[]s;
return 0;
}
void openXBee(char * device, HANDLE * fd)
{
DCB dcb;
COMMTIMEOUTS cto = { 0, 0, 0, 0, 0 };
memset(&dcb,NULL,sizeof(dcb));
dcb.DCBlength = sizeof(dcb);
dcb.BaudRate = 9600;
dcb.Parity = NOPARITY;
dcb.fParity = 0;
dcb.StopBits = ONESTOPBIT;
dcb.ByteSize = 8;
dcb.fOutxCtsFlow = 0;
dcb.fOutxDsrFlow = 0;
dcb.fDtrControl = DTR_CONTROL_DISABLE;
dcb.fDsrSensitivity = 0;
dcb.fRtsControl = RTS_CONTROL_DISABLE;
dcb.fOutX = 0;
dcb.fInX = 0;
dcb.fErrorChar = 0;
dcb.fBinary = 1;
dcb.fNull = 0;
dcb.fAbortOnError = 0;
dcb.wReserved = 0;
dcb.XonLim = 2;
dcb.XoffLim = 4;
dcb.XonChar = 0x13;
dcb.XoffChar = 0x19;
dcb.EvtChar = 0;
*fd = CreateFile(device, GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING,NULL,NULL);
if (fd == INVALID_HANDLE_VALUE)
{
printf("OPENCOMM Failed\n");
COMMERR(-1, "CreateFile");
}
COMMERR((!SetCommMask(*fd, 0)?-1:0), "SetCommMask");
COMMERR((!SetCommTimeouts(*fd,&cto)?-1:0), "SetCommTimeouts"); //Met en bloquant pour le passage en mode API
COMMERR((!SetCommState(*fd,&dcb)?-1:0), "SetCommState");;
}
int NcrComPort::ReadByte()
{
DCB dcb;
int retVal;
BYTE Byte;
DWORD dwBytesTransferred;
DWORD dwCommModemStatus;
HANDLE hPort = CreateFileA(
this->Port,
GENERIC_READ,
0,
NULL,
OPEN_EXISTING,
0,
NULL
);
if (!GetCommState(hPort, &dcb))
return 0x100;
FillDcb(dcb);
if (!SetCommState(hPort,&dcb))
return 0x100;
SetCommMask (hPort, EV_RXCHAR | EV_ERR); //receive character event
WaitCommEvent (hPort, &dwCommModemStatus, 0); //wait for character
if (dwCommModemStatus & EV_RXCHAR) {
ReadFile (hPort, &Byte, 1, &dwBytesTransferred, 0); //read 1
retVal = Byte;
} else if (dwCommModemStatus & EV_ERR)
retVal = 0x101;
CloseHandle(hPort);
return retVal;
}
/*DWORD ReadThread(HWND hwnd)
*Purpose: Reads characters coming in from the port and calls
*the PaintRead function to print them.
*Arg 1 - Handle to the window procedure.
*/
DWORD ReadThread(HWND hwnd) {
char message2[] = {0x01, 0x09, 0x00, 0x03, 0x01, 0x41, 0x0A, 0x41, 0xBE};
char *inbuff = "";
DWORD nBytesRead, dwEvent;
COMSTAT comstat;
COMMTIMEOUTS timeOuts;
OVERLAPPED osRead = {0};
osRead.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
//Set the total timeout interval
memset(&timeOuts, 0, sizeof(timeOuts));
timeOuts.ReadTotalTimeoutMultiplier = 5;
timeOuts.ReadTotalTimeoutConstant = 50;
SetCommTimeouts(hComm, &timeOuts);
SetCommMask(hComm, EV_RXCHAR);
//Initialize packet
packet.found = 0;
packet.total = -1;
packet.lrc = 0;
while(mode == CONNECT) {
if(WaitCommEvent(hComm, &dwEvent, NULL)) {
ClearCommError(hComm, NULL, &comstat);
if((dwEvent & EV_RXCHAR) && comstat.cbInQue) {
if(!ReadFile(hComm, &inbuff, comstat.cbInQue, &nBytesRead, &osRead)) {
break;
}
else {
if(nBytesRead)
PaintRead(hwnd, inbuff, nBytesRead);
}
}
}
ResetEvent(osRead.hEvent);
}
PurgeComm(hComm, PURGE_RXCLEAR);
return 0L;
}
// Thread that continuously checks for characters comming in on the serial port.
DWORD WINAPI commReadThread() {
char *charBuff; // holds character found on serial port.
DWORD evtMask;
COMSTAT comstat; // stores serial status information
DWORD numBytesRead;
COMMTIMEOUTS timeOuts;
int i, read;
gOverlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); // create overlap event to prevent simultanious access to serial port
// Timeouts in milliseconds
memset(&timeOuts, 0, sizeof(timeOuts));
timeOuts.ReadIntervalTimeout = 0;
timeOuts.ReadTotalTimeoutMultiplier = 5;
timeOuts.ReadTotalTimeoutConstant = 50;
SetCommTimeouts(TTYInfo.hCommPort, &timeOuts);
SetCommMask(TTYInfo.hCommPort, EV_RXCHAR);
while (TTYInfo.fConnected) { // only loops while serial port is connected.
if (WaitCommEvent(TTYInfo.hCommPort, &evtMask, NULL)) {
charBuff = '\0'; // stores character from serial port
ClearCommError(TTYInfo.hCommPort, NULL, &comstat); // get status information from serial port
charBuff = malloc(comstat.cbInQue);
if ((evtMask & EV_RXCHAR) && comstat.cbInQue) { // check if queue is empty
ReadFile(TTYInfo.hCommPort, charBuff, comstat.cbInQue, &numBytesRead, &gOverlapped); // read a single character from the serial port
}
for (i = 0; i < (int)numBytesRead; i++) {
if (charBuff[i] > 0) { // don't know why, I just had to
interpretChar(charBuff[i]);
}
}
}
}
return 0;
}
int ConnPort::OpenPort(TCHAR *szPort,int iBaudrate,int iParity,int iDataBits,int iStopBits)
{
DWORD dwThreadID=0;
g_iExitFlag=0;
m_hPort=NULL;
m_hPort=CreateFile(szPort,
GENERIC_READ|GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if(!m_hPort)
{
m_hPort=NULL;
wprintf(TEXT("open port failed!!!\r\n"));
return FALSE;
}
//指定端口检测的事件集
SetCommMask(m_hPort,EV_RXCHAR);
//设置缓冲区，内部输入、输出缓冲区大小
SetupComm(m_hPort,1024,1024);
//刷新缓冲区信息->输入、输出缓冲区
PurgeComm(m_hPort,PURGE_TXCLEAR|PURGE_RXCLEAR);
if(!ConfigPort(iBaudrate,iParity,iDataBits,iStopBits)) return FALSE;
if(!CommTimeouts())return FALSE;
//创建读写线程
m_hThreadRead = CreateThread(0,0,(LPTHREAD_START_ROUTINE)ReadThreadProc, (void*)this,0,&dwThreadID);
m_hThreadWrite = CreateThread(0,0,(LPTHREAD_START_ROUTINE)WriteThreadProc, (void*)this,0,&dwThreadID);
m_hDataParse = CreateThread(0,0,(LPTHREAD_START_ROUTINE)PareDataProc, (void*)this,0,&dwThreadID);
m_bIsConnect=TRUE;
return TRUE;
}
//////////////////////////////////////////////////////////////////////
// CloseConnection
// return: 0 always
//
int CAsyncPort::CloseConnection()
{
// not connected
m_isConnected = FALSE;
// disable event notification and wait for thread to halt
SetCommMask(m_hCommDev, 0);
// block until thread has been halted
while (m_dwThreadID != 0) {
Sleep(10);
}
// drop DTR
EscapeCommFunction(m_hCommDev, CLRDTR);
// purge any outstanding reads/writes and close device handle
PurgeComm (
m_hCommDev,
PURGE_TXABORT | PURGE_RXABORT | PURGE_TXCLEAR | PURGE_RXCLEAR
);
// close device
CloseHandle(m_hCommDev);
// reset instance variables
m_hCommDev = INVALID_HANDLE_VALUE;
memset(m_szCommDevName, 0, sizeof (m_szCommDevName));
memset(& m_commConfig, 0, sizeof (COMMCONFIG));;
m_commConfig.dwSize = sizeof (COMMCONFIG);
memset(& m_commProp, 0, sizeof (COMMPROP));
memset(& m_commTimeOuts, 0, sizeof (COMMTIMEOUTS));
memset(m_baInBuf, 0, sizeof (m_baInBuf));
m_nInBufIndex = 0;
m_nInBufSize = 0;
return (0);
}
// 포트를 닫는다.
void CCommThread::ClosePort()
{
//--> 연결되지 않았음.
// sflag = FALSE;
m_bConnected = FALSE;
::SendMessage(hStartWnd, WM_COMM_OPEN, 0, 0);
//DCB dcb;
//SetCommState( m_hComm, &dcb);
//--> 마스크 해제..
SetCommMask( m_hComm, 0);
Sleep(60);
//--> 포트 비우기.
PurgeComm( m_hComm, PURGE_TXABORT | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_RXCLEAR);
//Sleep(60);
CloseHandle(m_hComm);
//--> 핸들 닫기
}
void EIO_Set(uv_work_t* req) {
SetBaton* data = static_cast<SetBaton*>(req->data);
if (data->rts) {
EscapeCommFunction((HANDLE)data->fd, SETRTS);
} else {
EscapeCommFunction((HANDLE)data->fd, CLRRTS);
}
if (data->dtr) {
EscapeCommFunction((HANDLE)data->fd, SETDTR);
} else {
EscapeCommFunction((HANDLE)data->fd, CLRDTR);
}
if (data->brk) {
EscapeCommFunction((HANDLE)data->fd, SETBREAK);
} else {
EscapeCommFunction((HANDLE)data->fd, CLRBREAK);
}
DWORD bits = 0;
GetCommMask((HANDLE)data->fd, &bits);
bits &= ~(EV_CTS | EV_DSR);
if (data->cts) {
bits |= EV_CTS;
}
if (data->dsr) {
bits |= EV_DSR;
}
// TODO check for error
data->result = SetCommMask((HANDLE)data->fd, bits);
}
bool
SerialWrapper::Init(const CString& port)
{
DCB dcb;
COMMTIMEOUTS timeout;
_port = port;
_hport = CreateFile(
_port,
GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
0,
NULL);
if (!GetCommState(_hport, &dcb))
return false;
dcb.BaudRate = CBR_115200;
dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.StopBits = ONESTOPBIT;
if (!SetCommState(_hport, &dcb))
return false;
timeout.ReadIntervalTimeout = MAXDWORD;
timeout.ReadTotalTimeoutMultiplier = 0;
timeout.ReadTotalTimeoutConstant = 0;
timeout.WriteTotalTimeoutMultiplier = 0;
timeout.WriteTotalTimeoutConstant = 0;
if (!SetCommTimeouts(_hport, &timeout))
return false;
SetCommMask(_hport, EV_RXCHAR | EV_ERR);
_readBuffer = new(std::nothrow) BYTE[BUFF_SIZE];
if (!_readBuffer)
return false;
return true;
}
CommDevice::CommDevice(char* commName, char HFlags, unsigned long baud, unsigned int ReadSize, char EventChar)
{
m_Read.m_Size = ReadSize;
m_Read.m_Buffer = new char[ReadSize];
memset(m_Read.m_Buffer, 0, m_Read.m_Size);
// Open the Comm Port
hComm = CreateFile(commName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
// Check for errors opening
if (hComm == INVALID_HANDLE_VALUE)
{
DWORD errnum = GetLastError();
cerr << "CreateFile Error: " << errnum << ": Unable to open " << commName << endl;
}
// Set up the Configuration
m_dcb.DCBlength = sizeof(m_dcb);
if (!GetCommState(hComm, &m_dcb))
{
DWORD errnum = GetLastError();
cerr << "GetCommState Error " << errnum << ": Unable to extract current state for " << commName << endl;
}
m_dcb.BaudRate = baud;
m_dcb.ByteSize = 8;
m_dcb.Parity = 0;
m_dcb.StopBits = ONESTOPBIT;
m_dcb.fNull = TRUE;
m_dcb.EvtChar = EventChar;
m_dcb.fOutxCtsFlow = (HFlags & H_CTS) ? TRUE : FALSE;
m_dcb.fRtsControl = (HFlags & H_RTS) ? RTS_CONTROL_ENABLE : RTS_CONTROL_DISABLE;
// Set the Configuration
if (!SetCommState(hComm, &m_dcb))
{
DWORD errnum = GetLastError();
cerr << "SetCommState Error " << errnum << ": Unable to configure " << commName << endl;// << "Error code: " << itoa(Error) << endl;
}
SetCommMask(hComm, EV_RXFLAG | EV_TXEMPTY);
}
// unsigned int WINAPI DOIrisSerialPort::ReadThread( LPVOID pArg )
DWORD __stdcall DOIrisSerialPort::ReadThread( LPVOID pArg )
// DWORD __stdcall ReadThread(LPVOID hwnd)
{
unsigned long fdwCommMask;
unsigned long CharsInBuffer = 0;
unsigned long NonPacketCharsInBuffer;
unsigned long packetlength;
char * pEndChar;
LPSerial pCaller = reinterpret_cast<LPSerial>(pArg);
//DO_ASSERT( pCaller != NULL );
pCaller->m_bReadThreadIsRunning = TRUE;
/*
if ( pCaller->m_msgReceiver )
{
pCaller->m_msgReceiver->InitializeThread();
}
*/
// Enable logging from this thread via pCaller->m_pRnDLog.
//HRESULT hRes = E_FAIL;
//pCaller->m_pRnDLog->AddThread( hRes );
//DO_ASSERT( SUCCEEDED(hRes) );
// Setup the input and packet buffers
char *cBuffer = new char[pCaller->m_iInBufferLength];
//DO_ASSERT( cBuffer != NULL );
char *cPacketBuffer = new char[pCaller->m_iPacketBufferLength];
//DO_ASSERT( cPacketBuffer != NULL );
if( !SetCommMask( pCaller->m_hPort, EV_RXCHAR | EXIT_EVENT ) )
{
//pCaller->m_pRnDLog->LogRnDEvent( IDS_IRISCOMMON_SETCOMMMASK_FAILED );
}
// Main loop of read thread.
while( !pCaller->m_bStopReadThread )
{
if( !WaitCommEvent(pCaller->m_hPort, &fdwCommMask, 0))
{
//pCaller->m_pRnDLog->LogRnDEvent( IDS_IRISCOMMON_WAITCOMMEVENT_FAILED,
// static_cast<int>(GetLastError()) );
break; // Get out of read thread while loop
}
// Reset the comm Mask.
if( !SetCommMask(pCaller->m_hPort, EV_RXCHAR | EXIT_EVENT))
{
//pCaller->m_pRnDLog->LogRnDEvent( IDS_IRISCOMMON_SETCOMMMASK_FAILED,
// static_cast<int>(GetLastError()));
}
if( fdwCommMask & EV_RXCHAR )
{
unsigned long num;
#ifdef _WIN32_WCE
// Read all bytes received into cBuffer.
ReadFile(pCaller->m_hPort, &cBuffer[CharsInBuffer], pCaller->m_iInBufferLength-CharsInBuffer, &num, 0);
#else
ReadFile(pCaller->m_hPort, &cBuffer[CharsInBuffer], pCaller->m_iInBufferLength-CharsInBuffer, &num, &(pCaller->m_overlapped));
#endif // _WIN32_WCE
CharsInBuffer += num;
GenRecBytes = GenRecBytes+num;
// Check for a packet in the buffer
while( CharsInBuffer && (pEndChar = FindChr( cBuffer, IRIS_PACKET_END_FLAG, CharsInBuffer )) != NULL )
{
packetlength = static_cast<unsigned long>((pEndChar - cBuffer) + 1); // Includes IRIS_PACKET_END_FLAG char
// Make sure IRIS_PACKET_END_FLAG is in new message area of buffer
if ( packetlength <= CharsInBuffer && packetlength <= pCaller->m_iPacketBufferLength )
{
// Move packet to buffer and send
memcpy( cPacketBuffer, cBuffer, packetlength); // PC-Lint warning 688 expected
pCaller->PktCallRelay( cPacketBuffer, packetlength );
}
// Move remaining chars in buffer to beginning of buffer and adjust char counts
NonPacketCharsInBuffer = CharsInBuffer - packetlength;
if( NonPacketCharsInBuffer > 0 )
{
// PC-Lint warning 688 expected
memcpy( cBuffer, &cBuffer[CharsInBuffer-NonPacketCharsInBuffer], NonPacketCharsInBuffer);
}
else
{
NonPacketCharsInBuffer = 0;
}
CharsInBuffer = NonPacketCharsInBuffer;
}
// Handle the case were the buffer is full but no packet is found
if( CharsInBuffer >= pCaller->m_iInBufferLength )
{
CharsInBuffer = 0;
//pCaller->m_pRnDLog->LogRnDEvent( IDS_IRISCOMMON_BUFFER_OVERFLOW );
}
}
// Clear buffers to prevent problem when exiting thread
if( fdwCommMask & EXIT_EVENT )
{
PurgeComm(pCaller->m_hPort, PURGE_RXCLEAR | PURGE_TXCLEAR |
PURGE_RXABORT | PURGE_TXABORT );
}
}
delete [] cBuffer;
delete [] cPacketBuffer;
//pCaller->m_pRnDLog->RemoveThread();
/*
if ( pCaller->m_msgReceiver )
{
pCaller->m_msgReceiver->ShutdownThread();
}
*/
pCaller->m_bReadThreadIsRunning = FALSE;
return 0;
}
// 포트 sPortName을 dwBaud 속도로 연다.
// ThreadWatchComm 함수에서 포트에 무언가 읽혔을 때 MainWnd에 알리기
// 위해 WM_COMM_READ메시지를 보낼때 같이 보낼 wPortID값을 전달 받는다.
BOOL CCommThread::OpenPort(CString strPortName,
DWORD dwBaud, BYTE byData, BYTE byStop, BYTE byParity )
{
// Local 변수.
COMMTIMEOUTS timeouts;
DCB dcb;
DWORD dwThreadID;
// overlapped structure 변수 초기화.
m_osRead.Offset = 0;
m_osRead.OffsetHigh = 0;
//--> Read 이벤트 생성에 실패..
if ( !(m_osRead.hEvent = CreateEvent(NULL, FALSE, FALSE, NULL)) )
{
return FALSE;
}
m_osWrite.Offset = 0;
m_osWrite.OffsetHigh = 0;
//--> Write 이벤트 생성에 실패..
if (! (m_osWrite.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL)))
{
return FALSE;
}
//--> 포트명 저장..
m_sPortName = strPortName;
//--> 실제적인...RS 232 포트 열기..
m_hComm = CreateFile( m_sPortName,
GENERIC_READ | GENERIC_WRITE, 0, 0,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
NULL);
//--> 포트 열기에 실해하면..
if (m_hComm == (HANDLE) -1)
{
//AfxMessageBox("fail Port ofen");
return FALSE;
}
//===== 포트 상태 설정. =====
// EV_RXCHAR event 설정...데이터가 들어오면.. 수신 이벤트가 발생하게끔..
SetCommMask( m_hComm, EV_RXCHAR);
// InQueue, OutQueue 크기 설정.
SetupComm( m_hComm, BUFF_SIZE, BUFF_SIZE);
// 포트 비우기.
PurgeComm( m_hComm,
PURGE_TXABORT | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_RXCLEAR);
// timeout 설정.
timeouts.ReadIntervalTimeout = 0xFFFFFFFF;
timeouts.ReadTotalTimeoutMultiplier = 0;
timeouts.ReadTotalTimeoutConstant = 0;
timeouts.WriteTotalTimeoutMultiplier = 2*CBR_9600 / dwBaud;;
timeouts.WriteTotalTimeoutConstant = 0;
SetCommTimeouts( m_hComm, &timeouts);
// dcb 설정.... 포트의 실제적인..제어를 담당하는 DCB 구조체값 셋팅..
dcb.DCBlength = sizeof(DCB);
//--> 현재 설정된 값 중에서..
GetCommState( m_hComm, &dcb);
//--> 보드레이트를 바꾸고..
dcb.BaudRate = dwBaud;
//--> Data 8 Bit
dcb.ByteSize = byData;
//--> Noparity
dcb.Parity = byParity;
//--> 1 Stop Bit
dcb.StopBits = byStop;
//--> 포트를 재..설정값으로.. 설정해보고..
if( !SetCommState( m_hComm, &dcb) )
{
return FALSE;
}
//Sleep(60);
// 포트 감시 쓰레드 생성.
m_bConnected = TRUE;
::SendMessage(hStartWnd, WM_COMM_OPEN, 1, 0);
//--> 포트 감시 쓰레드 생성.
m_hThreadWatchComm = CreateThread( NULL, 0,
(LPTHREAD_START_ROUTINE)ThreadWatchComm,
this, 0, &dwThreadID);
//--> 쓰레드 생성에 실패하면..
if (! m_hThreadWatchComm)
{
//--> 열린 포트를 닫고..
ClosePort();
return FALSE;
}
check = FALSE;
return TRUE;
}
DWORD ThreadWatchComm(CCommThread* pComm)
{
DWORD dwEvent;
OVERLAPPED os;
BOOL bOk = TRUE;
BYTE buff[2048]; // 읽기 버퍼
DWORD dwRead; // 읽은 바이트수.
// Event, OS 설정.
memset( &os, 0, sizeof(OVERLAPPED));
//--> 이벤트 설정..
if( !(os.hEvent = CreateEvent( NULL, TRUE, FALSE, NULL)) )
{
bOk = FALSE;
}
//--> 이벤트 마스크..
if( !SetCommMask( pComm->m_hComm, EV_RXCHAR) )
{
bOk = FALSE;
}
//--> 이벤트나..마스크 설정에 실패함..
if( !bOk )
{
//AfxMessageBox("Error while creating ThreadWatchComm, " + pComm->m_sPortName);
return FALSE;
}
while (pComm ->m_bConnected)
{
dwEvent = 0;
// 포트에 읽을 거리가 올때까지 기다린다.
WaitCommEvent( pComm->m_hComm, &dwEvent, NULL);
//--> 데이터가 수신되었다는 메세지가 발생하면..
if( (dwEvent & EV_RXFLAG || dwEvent & EV_RXCHAR) == (EV_RXFLAG || EV_RXCHAR) )
//if ((dwEvent & EV_RXCHAR) == EV_RXCHAR)
{
// 포트에서 읽을 수 있는 만큼 읽는다.
//--> buff 에 받아놓고..
memset(buff, 0, sizeof(BYTE)*2048);
dwRead = pComm->ReadComm( buff, 512);
//if(dwRead == 66)
{
pComm->SetReadData(buff, dwRead);
}
}
}
CloseHandle( os.hEvent);
//--> 쓰레드 종료가 되겠죠?
pComm->m_hThreadWatchComm = NULL;
return TRUE;
}
bool CIRDriver::InitPort(CIRConfig *cfg, bool daemonize)
{
struct ir_remote *tmp;
if(cfg==NULL) return false;
DEBUG("Initializing port...\n");
KillThread(&IRThreadHandle,&IRThreadEvent);
KillThread(&DaemonThreadHandle,&DaemonThreadEvent);
cbuf_start=cbuf_end=0;
if(ov.hEvent)
{
SetEvent(ov.hEvent); // singal it
Sleep(100); // wait a tiny bit
CloseHandle(ov.hEvent); // and close it
ov.hEvent=NULL;
}
if(hPort)
{
SetCommMask(hPort,0); // stop any waiting on the port
Sleep(100); // wait a tiny bit
CloseHandle(hPort); // and close it
hPort=NULL;
}
if((hPort=CreateFile(
cfg->port,GENERIC_READ | GENERIC_WRITE,
0,0,OPEN_EXISTING,FILE_FLAG_OVERLAPPED,0))==INVALID_HANDLE_VALUE)
{
hPort=NULL;
return false;
}
DCB dcb;
if(!GetCommState(hPort,&dcb))
{
CloseHandle(hPort);
hPort=NULL;
return false;
}
if (cfg->animax) dcb.fDtrControl=DTR_CONTROL_ENABLE; //set DTR high, the animax receiver needs this for power
else
dcb.fDtrControl=DTR_CONTROL_DISABLE; // set the transmit LED to off initially.
dcb.fRtsControl=RTS_CONTROL_ENABLE;
dcb.BaudRate = cfg->speed;
devicetype = cfg->devicetype;
virtpulse = cfg->virtpulse;
if(!SetCommState(hPort,&dcb))
{
CloseHandle(hPort);
hPort=NULL;
DEBUG("SetCommState failed.\n");
return false;
}
tmp=global_remotes;
while (tmp!=NULL) {
if (!(tmp->flags&SPECIAL_TRANSMITTER)) tmp->transmitter=cfg->transmittertype;
tmp=tmp->next;
}
SetTransmitPort(hPort,cfg->transmittertype);
if(cfg->sense==-1)
{
/* Wait for receiver to settle (since we just powered it on) */
Sleep(1000);
DWORD state;
if(!GetCommModemStatus(hPort,&state))
{
CloseHandle(hPort);
hPort=NULL;
return false;
}
sense=(state & MS_RLSD_ON) ? 1 : 0;
DEBUG("Sense set to %d\n",sense);
}
else
sense=cfg->sense;
if((ov.hEvent=CreateEvent(NULL,TRUE,FALSE,NULL))==NULL)
{
CloseHandle(hPort);
hPort=NULL;
return false;
}
/* Start the thread */
/* THREAD_PRIORITY_TIME_CRITICAL combined with the REALTIME_PRIORITY_CLASS */
/* of this program results in the highest priority (26 out of 31) */
if((IRThreadHandle=
AfxBeginThread(IRThread,(void *)this,THREAD_PRIORITY_TIME_CRITICAL))==NULL)
{
CloseHandle(hPort);
CloseHandle(ov.hEvent);
hPort=ov.hEvent=NULL;
return false;
}
if(daemonize)
{
/* Start the thread */
/* THREAD_PRIORITY_IDLE combined with the REALTIME_PRIORITY_CLASS */
/* of this program still results in a really high priority. (16 out of 31) */
if((DaemonThreadHandle=
AfxBeginThread(DaemonThread,(void *)this,THREAD_PRIORITY_IDLE))==NULL)
{
KillThread(&IRThreadHandle,&IRThreadEvent);
CloseHandle(hPort);
CloseHandle(ov.hEvent);
hPort=ov.hEvent=NULL;
return false;
}
}
DEBUG("Port initialized.\n");
return true;
}
void CIRDriver::ThreadProc(void)
{
/* Virtually no error checking is done here, because */
/* it's pretty safe to assume that everything works, */
/* and we have nowhere to report errors anyway. */
/* We use two timers in case the high resolution doesn't */
/* last too long before wrapping around (is that true? */
/* is it really only a 32 bit timer or a true 64 bit one?) */
__int64 hr_time, hr_lasttime, hr_freq; // high-resolution
time_t lr_time, lr_lasttime; // low-resolution
DWORD status;
GetCommModemStatus(hPort, &status);
int prev=(status & MS_RLSD_ON) ? 1 : 0;
/* Initialize timer stuff */
QueryPerformanceFrequency((LARGE_INTEGER *)&hr_freq);
/* Get time (both LR and HR) */
time(&lr_lasttime);
QueryPerformanceCounter((LARGE_INTEGER *)&hr_lasttime);
HANDLE events[2]={ov.hEvent,IRThreadEvent};
for(;;)
{
/* We want to be notified of DCD or RX changes */
if(SetCommMask(hPort, devicetype ? EV_RLSD : EV_RXCHAR)==0)
{
DEBUG("SetCommMask returned zero, error=%d\n",GetLastError());
}
/* Reset the event */
ResetEvent(ov.hEvent);
/* Start waiting for the event */
DWORD event;
if(WaitCommEvent(hPort,&event,&ov)==0 && GetLastError()!=997)
{
DEBUG("WaitCommEvent error: %d\n",GetLastError());
}
/* Wait for the event to get triggered */
int res=WaitForMultipleObjects(2,events,FALSE,INFINITE);
/* Get time (both LR and HR) */
QueryPerformanceCounter((LARGE_INTEGER *)&hr_time);
time(&lr_time);
if(res==WAIT_FAILED)
{
DEBUG("Wait failed.\n");
continue;
}
if(res==(WAIT_OBJECT_0+1))
{
DEBUG("IRThread terminating\n");
AfxEndThread(0);
return;
}
if(res!=WAIT_OBJECT_0)
{
DEBUG("Wrong object\n");
continue;
}
int dcd;
if (devicetype) {
GetCommModemStatus(hPort,&status);
dcd = (status & MS_RLSD_ON) ? 1 : 0;
if(dcd==prev)
{
/* Nothing changed?! */
/* Continue without changing time */
continue;
}
prev=dcd;
}
int deltv=lr_time-lr_lasttime;
if (devicetype && (deltv>15)) {
/* More than 15 seconds passed */
deltv=0xFFFFFF;
if(!(dcd^sense))
{
/* sense had to be wrong */
sense=sense?0:1;
DEBUG("sense was wrong!\n");
}
} else
deltv=(int)(((hr_time-hr_lasttime)*1000000) / hr_freq);
lr_lasttime=lr_time;
hr_lasttime=hr_time;
int data;
if (devicetype) {
data = (dcd^sense) ? (deltv) : (deltv | 0x1000000);
if(SetData(data))
SetEvent(hDataReadyEvent);
} else {
data = deltv;
SetData(data-100);
if(SetData(virtpulse | 0x1000000))
SetEvent(hDataReadyEvent);
PurgeComm(hPort,PURGE_RXCLEAR);
}
}
}
void irtiny::CIRDriver::threadProc()
{
Event overlappedEvent = Event::manualResetEvent();
OVERLAPPED ov = { 0 };
ov.hEvent = overlappedEvent.get();
HANDLE const events[2] = { ov.hEvent, finishEvent_.get() };
// Send a byte to force RTS
::WriteFile(serialPort_.get(), "x", 1, nullptr, &ov);
::Sleep(100);
for (;;)
{
overlappedEvent.resetEvent();
// We want to be notified of RX changes
if (SetCommMask(serialPort_.get(), EV_RXCHAR) == 0)
{
//DEBUG("SetCommMask returned zero, error=%d\n",GetLastError());
}
// Start waiting for the event
DWORD event;
if (WaitCommEvent(serialPort_.get(), &event, &ov) == 0 && GetLastError() != 997)
{
//DEBUG("WaitCommEvent error: %d\n",GetLastError());
}
switch (WaitForMultipleObjects(2, events, FALSE, INFINITE))
{
default:
continue;
case WAIT_OBJECT_0:
while (true)
{
uint8_t buf[2];
DWORD bytesRead = 0;
auto const readSuccessful = ReadFile(serialPort_.get(), buf, 2, &bytesRead, &ov);
if (bytesRead == 2)
{
uint16_t const val = MAKEWORD(buf[1], buf[0]) & 0x7FFF;
bool const level = (buf[0] & 0x80) != 0;
double const unit = 1.0 / 115200.0;
DWORD const deltv = static_cast<DWORD>(1.0e+6 * unit * double(val));
DWORD const data = level
? (deltv | 0x1000000)
: deltv;
setData(data);
}
else
{
::ClearCommError(serialPort_.get(), nullptr, nullptr);
::PurgeComm(serialPort_.get(), PURGE_RXABORT | PURGE_RXCLEAR);
break;
}
}
break;
case WAIT_OBJECT_0 + 1:
return;
}
}
}
//
// Initialize the port. This can be port 1 to MaxSerialPortNum.
///初始化串口。只能是1-MaxSerialPortNum
//
//parity:
// n=none
// e=even
// o=odd
// m=mark
// s=space
//data:
// 5,6,7,8
//stop:
// 1,1.5,2
//
BOOL CSerialPort::InitPort(HWND pPortOwner, // the owner (CWnd) of the port (receives message)
UINT portnr, // portnumber (1..MaxSerialPortNum)
UINT baud, // baudrate
char parity, // parity
UINT databits, // databits
UINT stopbits, // stopbits
DWORD dwCommEvents, // EV_RXCHAR, EV_CTS etc
UINT writebuffersize,// size to the writebuffer
DWORD ReadIntervalTimeout,
DWORD ReadTotalTimeoutMultiplier,
DWORD ReadTotalTimeoutConstant,
DWORD WriteTotalTimeoutMultiplier,
DWORD WriteTotalTimeoutConstant )
{
assert(portnr > 0 && portnr < 200);
assert(pPortOwner != NULL);
// if the thread is alive: Kill
if (m_bThreadAlive)
{
do
{
SetEvent(m_hShutdownEvent);
} while (m_bThreadAlive);
//TRACE("Thread ended\n");
}
// create events
if (m_ov.hEvent != NULL)
ResetEvent(m_ov.hEvent);
else
m_ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (m_hWriteEvent != NULL)
ResetEvent(m_hWriteEvent);
else
m_hWriteEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (m_hShutdownEvent != NULL)
ResetEvent(m_hShutdownEvent);
else
m_hShutdownEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
// initialize the event objects
///事件数组初始化，设定优先级别
m_hEventArray[0] = m_hShutdownEvent; // highest priority
m_hEventArray[1] = m_ov.hEvent;
m_hEventArray[2] = m_hWriteEvent;
// initialize critical section
///初始化临界资源
InitializeCriticalSection(&m_csCommunicationSync);
// set buffersize for writing and save the owner
m_pOwner = pPortOwner;
if (m_szWriteBuffer != NULL)
delete [] m_szWriteBuffer;
m_szWriteBuffer = new char[writebuffersize];
m_nPortNr = portnr;
m_nWriteBufferSize = writebuffersize;
m_dwCommEvents = dwCommEvents;
BOOL bResult = FALSE;
CString szPort;
//char *szBaud = new char[50];
/*
多个线程操作相同的数据时，一般是需要按顺序访问的，否则会引导数据错乱，
无法控制数据，变成随机变量。为解决这个问题，就需要引入互斥变量，让每
个线程都按顺序地访问变量。这样就需要使用EnterCriticalSection和
LeaveCriticalSection函数。
*/
// now it critical!
EnterCriticalSection(&m_csCommunicationSync);
// if the port is already opened: close it
///串口已打开就关掉
if (m_hComm != NULL)
{
CloseHandle(m_hComm);
m_hComm = NULL;
}
// prepare port strings
szPort.Format("\\\\.\\COM%d", portnr);///可以显示COM10以上端口//add by itas109 2014-01-09
// stop is index 0 = 1 1=1.5 2=2
int mystop;
int myparity;
switch(stopbits)
{
case 0:
mystop = ONESTOPBIT;
break;
case 1:
mystop = ONE5STOPBITS;
break;
case 2:
mystop = TWOSTOPBITS;
break;
}
myparity = 0;
parity = toupper(parity);
switch(parity)
{
case 'N':
myparity = 0;
break;
case 'O':
myparity = 1;
break;
case 'E':
myparity = 2;
break;
case 'M':
myparity = 3;
break;
case 'S':
myparity = 4;
break;
}
//sprintf(szBaud, "baud=%d parity=%c data=%d stop=%d", baud, parity, databits, mystop);
// get a handle to the port
/*
通信程序在CreateFile处指定串口设备及相关的操作属性，再返回一个句柄，
该句柄将被用于后续的通信操作，并贯穿整个通信过程串口打开后，其属性
被设置为默认值，根据具体需要，通过调用GetCommState(hComm,&&dcb)读取
当前串口设备控制块DCB设置，修改后通过SetCommState(hComm,&&dcb)将其写
入。运用ReadFile()与WriteFile()这两个API函数实现串口读写操作，若为异
步通信方式，两函数中最后一个参数为指向OVERLAPPED结构的非空指针，在读
写函数返回值为FALSE的情况下，调用GetLastError()函数，返回值为ERROR_IO_PENDING，
表明I/O操作悬挂，即操作转入后台继续执行。此时，可以用WaitForSingleObject()
来等待结束信号并设置最长等待时间
*/
m_hComm = CreateFile(szPort, // communication port string (COMX)
GENERIC_READ | GENERIC_WRITE, // read/write types
0, // comm devices must be opened with exclusive access
NULL, // no security attributes
OPEN_EXISTING, // comm devices must use OPEN_EXISTING
FILE_FLAG_OVERLAPPED, // Async I/O
0); // template must be 0 for comm devices
///创建失败
if (m_hComm == INVALID_HANDLE_VALUE)
{
// port not found
//delete [] szBaud;
return FALSE;
}
// set the timeout values
///设置超时
m_CommTimeouts.ReadIntervalTimeout = ReadIntervalTimeout * 1000;
m_CommTimeouts.ReadTotalTimeoutMultiplier = ReadTotalTimeoutMultiplier * 1000;
m_CommTimeouts.ReadTotalTimeoutConstant = ReadTotalTimeoutConstant * 1000;
m_CommTimeouts.WriteTotalTimeoutMultiplier = WriteTotalTimeoutMultiplier * 1000;
m_CommTimeouts.WriteTotalTimeoutConstant = WriteTotalTimeoutConstant * 1000;
// configure
///配置
///分别调用Windows API设置串口参数
if (SetCommTimeouts(m_hComm, &m_CommTimeouts))///设置超时
{
/*
若对端口数据的响应时间要求较严格，可采用事件驱动方式。
事件驱动方式通过设置事件通知，当所希望的事件发生时，Windows
发出该事件已发生的通知，这与DOS环境下的中断方式很相似。Windows
定义了9种串口通信事件，较常用的有以下三种：
EV_RXCHAR:接收到一个字节，并放入输入缓冲区；
EV_TXEMPTY:输出缓冲区中的最后一个字符，发送出去；
EV_RXFLAG:接收到事件字符(DCB结构中EvtChar成员)，放入输入缓冲区
在用SetCommMask()指定了有用的事件后，应用程序可调用WaitCommEvent()来等待事
件的发生。SetCommMask(hComm,0)可使WaitCommEvent()中止
*/
if (SetCommMask(m_hComm, dwCommEvents))///设置通信事件
{
if (GetCommState(m_hComm, &m_dcb))///获取当前DCB参数
{
//m_dcb.EvtChar = 'q';
//m_dcb.fRtsControl = RTS_CONTROL_ENABLE; // set RTS bit high!
m_dcb.BaudRate = baud; // add by mrlong
m_dcb.Parity = myparity;
m_dcb.ByteSize = databits;
m_dcb.StopBits = mystop;
m_dcb.fBinary = TRUE;// 指定是否允许二进制模式
m_dcb.fParity = TRUE;// 指定是否允许奇偶校验
//m_dcb.EvtChar = 'q';
//if (BuildCommDCB(szBaud, &m_dcb))///填写DCB结构
//{
if (SetCommState(m_hComm, &m_dcb))///配置DCB
; // normal operation... continue
else
ProcessErrorMessage("SetCommState()");
//}
//else
// ProcessErrorMessage("BuildCommDCB()");
}
else
ProcessErrorMessage("GetCommState()");
}
else
ProcessErrorMessage("SetCommMask()");
}
else
ProcessErrorMessage("SetCommTimeouts()");
//delete [] szBaud;
// flush the port
///终止读写并清空接收和发送
PurgeComm(m_hComm, PURGE_RXCLEAR | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_TXABORT);
// release critical section
///释放临界资源
LeaveCriticalSection(&m_csCommunicationSync);
//TRACE("Initialisation for communicationport %d completed.\nUse Startmonitor to communicate.\n", portnr);
return TRUE;
}
// COMx for windows, returns NULL on error
tUartHandle UartOpen(char* szPortName)
{
HANDLE serial_handle;
DCB dcb;
memset(&dcb,0,sizeof(dcb));
/* -------------------------------------------------------------------- */
// set DCB to configure the serial port
dcb.DCBlength = sizeof(dcb);
dcb.fOutxCtsFlow = 0;
dcb.fOutxDsrFlow = 0;
dcb.fDtrControl = DTR_CONTROL_ENABLE; // enable for power
dcb.fDsrSensitivity = 0;
dcb.fRtsControl = RTS_CONTROL_ENABLE; // enable for power
dcb.fOutX = 0;
dcb.fInX = 0;
/* ----------------- misc parameters ----- */
dcb.fErrorChar = 0;
dcb.fBinary = 1;
dcb.fNull = 0;
dcb.fAbortOnError = 0;
dcb.wReserved = 0;
dcb.XonLim = 2;
dcb.XoffLim = 4;
dcb.XonChar = 0x13;
dcb.XoffChar = 0x19;
dcb.EvtChar = 0;
/* ----------------- defaults ----- */
dcb.BaudRate = 4800;
dcb.Parity = NOPARITY;
dcb.fParity = 0;
dcb.StopBits = ONESTOPBIT;
dcb.ByteSize = 8;
/* -------------------------------------------------------------------- */
// opening serial port
serial_handle = CreateFile(szPortName, GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, FILE_FLAG_WRITE_THROUGH, NULL);
if (serial_handle == INVALID_HANDLE_VALUE)
{
//printf("Cannot open port \n");
return NULL;
}
SetCommMask(serial_handle, 0);
if(!SetCommState(serial_handle, &dcb))
{
//printf("Error setting up COM params\n");
CloseHandle(serial_handle);
return NULL;
}
return serial_handle;
}
//
// Initialize the port. This can be port 1 to 4.
//
BOOL CSerialPort::InitPort(CWnd* pPortOwner, // the owner (CWnd) of the port (receives message)
UINT portnr, // portnumber (1..4)
UINT baud, // baudrate
char parity, // parity
UINT databits, // databits
UINT stopbits, // stopbits
DWORD dwCommEvents, // EV_RXCHAR, EV_CTS etc
UINT writebuffersize) // size to the writebuffer
{
//assert(portnr > 0 && portnr < 5);
assert(pPortOwner != NULL);
// if the thread is alive: Kill
if (m_bThreadAlive)
{
do
{
SetEvent(m_hShutdownEvent);
} while (m_bThreadAlive);
TRACE("Thread ended\n");
}
// create events
if (m_ov.hEvent != NULL)
ResetEvent(m_ov.hEvent);
m_ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (m_hWriteEvent != NULL)
ResetEvent(m_hWriteEvent);
m_hWriteEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
if (m_hShutdownEvent != NULL)
ResetEvent(m_hShutdownEvent);
m_hShutdownEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
// initialize the event objects
m_hEventArray[0] = m_hShutdownEvent; // highest priority
m_hEventArray[1] = m_ov.hEvent;
m_hEventArray[2] = m_hWriteEvent;
// initialize critical section
InitializeCriticalSection(&m_csCommunicationSync);
// set buffersize for writing and save the owner
m_pOwner = pPortOwner;
if (m_szWriteBuffer != NULL)
delete [] m_szWriteBuffer;
m_szWriteBuffer = new char[writebuffersize];
m_nPortNr = portnr;
m_nWriteBufferSize = writebuffersize;
m_dwCommEvents = dwCommEvents;
BOOL bResult = FALSE;
char *szPort = new char[50];
char *szBaud = new char[50];
// now it critical!
EnterCriticalSection(&m_csCommunicationSync);
// if the port is already opened: close it
if (m_hComm != NULL)
{
CloseHandle(m_hComm);
m_hComm = NULL;
}
// prepare port strings
sprintf(szPort, "COM%d", portnr);
sprintf(szBaud, "baud=%d parity=%c data=%d stop=%d", baud, parity, databits, stopbits);
// get a handle to the port
m_hComm = CreateFile(szPort, // communication port string (COMX)
GENERIC_READ | GENERIC_WRITE, // read/write types
0, // comm devices must be opened with exclusive access
NULL, // no security attributes
OPEN_EXISTING, // comm devices must use OPEN_EXISTING
FILE_FLAG_OVERLAPPED, // Async I/O
0); // template must be 0 for comm devices
if (m_hComm == INVALID_HANDLE_VALUE)
{
// port not found
delete [] szPort;
delete [] szBaud;
return FALSE;
}
// set the timeout values
m_CommTimeouts.ReadIntervalTimeout = 1000;
m_CommTimeouts.ReadTotalTimeoutMultiplier = 1000;
m_CommTimeouts.ReadTotalTimeoutConstant = 1000;
m_CommTimeouts.WriteTotalTimeoutMultiplier = 1000;
m_CommTimeouts.WriteTotalTimeoutConstant = 1000;
// configure
if (SetCommTimeouts(m_hComm, &m_CommTimeouts))
{
if (SetCommMask(m_hComm, dwCommEvents))
{
if (GetCommState(m_hComm, &m_dcb))
{
m_dcb.fRtsControl = RTS_CONTROL_ENABLE; // set RTS bit high!
if (BuildCommDCB(szBaud, &m_dcb))
{
if (SetCommState(m_hComm, &m_dcb))
; // normal operation... continue
else
ProcessErrorMessage("SetCommState()");
}
else
ProcessErrorMessage("BuildCommDCB()");
}
else
ProcessErrorMessage("GetCommState()");
}
else
ProcessErrorMessage("SetCommMask()");
}
else
ProcessErrorMessage("SetCommTimeouts()");
delete [] szPort;
delete [] szBaud;
// flush the port
PurgeComm(m_hComm, PURGE_RXCLEAR | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_TXABORT);
// release critical section
LeaveCriticalSection(&m_csCommunicationSync);
TRACE("Initialisation for communicationport %d completed.\nUse Startmonitor to communicate.\n", portnr);
return TRUE;
}
/*-----------------------------------------------------------------------------
FUNCTION: SetupCommPort( int Port )
PURPOSE: Setup Communication Port with our settings
-----------------------------------------------------------------------------*/
BOOL SetupCommPort(int port)
{
DWORD dwReadStatId;
DWORD dwWriteStatId;
int sav_port,sav_pause;
DCB dcb = {0};
char PORTNAME[10];
if (!port) return(false);
sav_port=TTY.PORT;
sav_pause=TTY.read_pause;
TTY.read_pause=1;
BreakDownCommPort();
TTY.PORT = port ;
// set tty structure for the specified port
sprintf(PORTNAME,"\\\\.\\COM%d",port);
PACKET.readstate=0;
PACKET.number=0;
PACKET.old_number=0;
PACKET.info=0;
// open communication port handle
// TTY.COMDEV = CreateFile( PORTNAME,GENERIC_READ | GENERIC_WRITE,
// 0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,0);
TTY.COMDEV = CreateFile( PORTNAME,GENERIC_READ | GENERIC_WRITE,
0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
if (TTY.COMDEV == INVALID_HANDLE_VALUE) goto failed;
if (!GetCommState(TTY.COMDEV, &dcb)) // get current DCB settings
{ report_error("GetCommState");goto failed; }
// update DCB rate, byte size, parity, and stop bits size
dcb.DCBlength = sizeof(dcb);
dcb.BaudRate = TTY.BAUDRATE;
dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.StopBits = ONESTOPBIT;
dcb.EvtChar = '\0';
// update flow control settings
dcb.fDtrControl = DTR_CONTROL_ENABLE;
dcb.fRtsControl = RTS_CONTROL_ENABLE;
if (TTY.FLOW_CONTROL)
{
dcb.fOutxCtsFlow = TRUE;
dcb.fOutxDsrFlow = TRUE;
}
else
{
dcb.fOutxCtsFlow = FALSE;
dcb.fOutxDsrFlow = FALSE;
}
dcb.fDsrSensitivity = FALSE;;
dcb.fOutX = FALSE;
dcb.fInX = FALSE;
dcb.fTXContinueOnXoff = FALSE;
dcb.XonChar = 0;
dcb.XoffChar = 0;
dcb.XonLim = 0;
dcb.XoffLim = 0;
dcb.fParity = FALSE; //TRUE;
if (!SetCommState(TTY.COMDEV, &dcb)) // set new state
{ report_error("SetCommState failed"); goto failed;}
// set comm buffer sizes
if (!SetupComm(TTY.COMDEV, 1024, 1024))
{ report_error("SetupComm failed");goto failed;}
if (!EscapeCommFunction(TTY.COMDEV, SETDTR)) // raise DTR
{ report_error("EscapeCommFunction failed");goto failed;}
SetCommMask (TTY.COMDEV, EV_RXCHAR | EV_CTS | EV_DSR | EV_RLSD | EV_RING);
// start the reader and writer threads
fThreadDone = FALSE;
TTY.READERTHREAD =
CreateThread( NULL, 1000, (LPTHREAD_START_ROUTINE) ReaderProc, 0, 0, &dwReadStatId);
if (TTY.READERTHREAD == NULL)
{ report_error("CreateThread failed"); goto failed;}
TTY.WRITERTHREAD =
CreateThread( NULL, 1000, (LPTHREAD_START_ROUTINE) WriterProc, 0, 0, &dwWriteStatId);
if (TTY.WRITERTHREAD == NULL)
{ report_error("CreateWriterThread failed"); goto failed;}
write_logfile("COMPORT opened: %s", PORTNAME);
TTY.amount_to_write=0;
TTY.read_pause=sav_pause;
return TRUE;
failed:
{
char sztemp[100];
write_logfile("COMPORT open failed");
sprintf(sztemp, "The Port COM%d is not available. Please select another Com-Port.",TTY.PORT);
report_error(sztemp);
TTY.read_pause=sav_pause;
TTY.PORT=sav_port;
TTY.COMDEV=INVALID_HANDLE_VALUE;
TTY.CONNECTED=FALSE;
TTY.amount_to_write=0;
return FALSE;
}
}
//---------------------------------------------------------------------------
// Attempt to open a com port. Keep the handle in ComID.
// Set the starting baud rate to 115200.
//
// 'portnum' - number 0 to MAX_PORTNUM-1. This number provided will
// be used to indicate the port number desired when calling
// all other functions in this library.
//
// 'port_zstr' - zero terminate port name. For this platform
// use format COMX where X is the port number.
//
//
// Returns: TRUE(1) - success, COM port opened
// FALSE(0) - failure, could not open specified port
//
bool OpenCOM(int portnum, char *port_zstr)
{
char tempstr[80];
short fRetVal;
COMMTIMEOUTS CommTimeOuts;
DCB dcb;
// open COM device
if ((ComID[portnum] =
CreateFile( port_zstr, GENERIC_READ | GENERIC_WRITE,
0,
NULL, // no security attrs
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED, // overlapped I/O
NULL )) == (HANDLE) -1 )
{
ComID[portnum] = 0;
return (FALSE) ;
}
else
{
// create events for detection of reading and write to com port
osRead[portnum].hEvent = CreateEvent(NULL,TRUE,FALSE,tempstr);
osWrite[portnum].hEvent = CreateEvent(NULL,TRUE,FALSE,tempstr);
// get any early notifications
SetCommMask(ComID[portnum], EV_RXCHAR | EV_TXEMPTY | EV_ERR | EV_BREAK);
// setup device buffers
SetupComm(ComID[portnum], 2048, 2048);
// purge any information in the buffer
PurgeComm(ComID[portnum], PURGE_TXABORT | PURGE_RXABORT |
PURGE_TXCLEAR | PURGE_RXCLEAR );
// set up for overlapped non-blocking I/O
CommTimeOuts.ReadIntervalTimeout = 0;
CommTimeOuts.ReadTotalTimeoutMultiplier = 20;
CommTimeOuts.ReadTotalTimeoutConstant = 40;
CommTimeOuts.WriteTotalTimeoutMultiplier = 20;
CommTimeOuts.WriteTotalTimeoutConstant = 40;
SetCommTimeouts(ComID[portnum], &CommTimeOuts);
// setup the com port
GetCommState(ComID[portnum], &dcb);
dcb.BaudRate = CBR_115200; // current baud rate
dcb.fBinary = TRUE; // binary mode, no EOF check
dcb.fParity = FALSE; // enable parity checking
dcb.fOutxCtsFlow = FALSE; // CTS output flow control
dcb.fOutxDsrFlow = FALSE; // DSR output flow control
dcb.fDtrControl = DTR_CONTROL_ENABLE; // DTR flow control type
dcb.fDsrSensitivity = FALSE; // DSR sensitivity
dcb.fTXContinueOnXoff = TRUE; // XOFF continues Tx
dcb.fOutX = FALSE; // XON/XOFF out flow control
dcb.fInX = FALSE; // XON/XOFF in flow control
dcb.fErrorChar = FALSE; // enable error replacement
dcb.fNull = FALSE; // enable null stripping
dcb.fRtsControl = RTS_CONTROL_ENABLE; // RTS flow control
dcb.fAbortOnError = FALSE; // abort reads/writes on error
dcb.XonLim = 0; // transmit XON threshold
dcb.XoffLim = 0; // transmit XOFF threshold
dcb.ByteSize = 8; // number of bits/byte, 4-8
dcb.Parity = NOPARITY; // 0-4=no,odd,even,mark,space
dcb.StopBits = ONESTOPBIT; // 0,1,2 = 1, 1.5, 2
dcb.XonChar = 0; // Tx and Rx XON character
dcb.XoffChar = 1; // Tx and Rx XOFF character
dcb.ErrorChar = 0; // error replacement character
dcb.EofChar = 0; // end of input character
dcb.EvtChar = 0; // received event character
fRetVal = SetCommState(ComID[portnum], &dcb);
}
// check if successfull
if (!fRetVal)
{
CloseHandle(ComID[portnum]);
ComID[portnum] = 0;
return false;
}
return true;
}
BOOL ARRAY3600OBJ::SetupComPort(int port)
{
connected=FALSE;
int sav_port;
DCB dcb = {0};
char PORTNAME[10];
sav_port=comport;
BreakDownComPort();
comport= port ;
// set tty structure for the specified port
if (!port) goto failed;
sprintf(PORTNAME,"\\\\.\\COM%d",port);
comdev = CreateFile( PORTNAME,GENERIC_READ | GENERIC_WRITE,
0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
if (comdev == INVALID_HANDLE_VALUE) goto failed;
if (!GetCommState(comdev, &dcb)) // get current DCB settings
{ report_error("GetCommState");goto failed; }
// update DCB rate, byte size, parity, and stop bits size
dcb.DCBlength = sizeof(dcb);
dcb.BaudRate = baudrate;
dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.StopBits = ONESTOPBIT;
dcb.EvtChar = '\0';
// update flow control settings
dcb.fDtrControl = DTR_CONTROL_ENABLE;
dcb.fRtsControl = RTS_CONTROL_ENABLE;
dcb.fOutxCtsFlow = FALSE;
dcb.fOutxDsrFlow = FALSE;
dcb.fDsrSensitivity = FALSE;;
dcb.fOutX = FALSE;
dcb.fInX = FALSE;
dcb.fTXContinueOnXoff = FALSE;
dcb.XonChar = 0;
dcb.XoffChar = 0;
dcb.XonLim = 0;
dcb.XoffLim = 0;
dcb.fParity = FALSE; //TRUE;
if (!SetCommState(comdev, &dcb)) // set new state
{ report_error("SetCommState failed"); goto failed;}
if (!SetupComm(comdev, 1024, 1024)) // set comm buffer sizes
{ report_error("SetupComm failed");goto failed;}
if (!EscapeCommFunction(comdev, SETDTR)) // raise DTR
{ report_error("EscapeCommFunction failed");goto failed;}
SetCommMask (comdev, EV_RXCHAR | EV_CTS | EV_DSR | EV_RLSD | EV_RING);
return(TRUE);
failed:
{
char sztemp[100];
sprintf(sztemp, "The Port COM%d is not available. Please select another Com-Port.",port);
write_logfile("COMPORT %d open failed.",port);
report_error(sztemp);
comport=sav_port;
comdev=INVALID_HANDLE_VALUE;
connected=FALSE;
return FALSE;
}
}