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clsSerialIO.c
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the ig-logger project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Original author: Christian Kaiser <[email protected]>
*/
#if defined(__IG__)
#include "logig.h"
#endif
#include <stdarg.h>
#include <clsLateload.hpp>
#include <Buffer.hpp>
#include <GPFProt.hpp>
#include "clsSYSTEMTIME.h"
#include "clsExcept.h"
#include "..\logig\clsSerialIO.h"
#include "..\avr\pc\ftd2xx.h"
#if defined(__TEST__)
#define FRAME 0x0a
#define ESCAPE 0x1b
#endif
clsIOBase::clsIOBase(const String& sType, IDataSink* pDataStore)
: clsThreadBase("clsRS232IO")
, _sType(sType)
, _bActive(false)
, _pDataStore(pDataStore)
{
}
clsIOBase::~clsIOBase()
{
ThreadJoin();
}
void clsIOBase::IOLog(const char* pszFormat, ...)
{
String s;
va_list args;
va_start(args,pszFormat);
s.VPrintf(pszFormat,args);
va_end(args);
#if defined(__TEST__)
printf("%s %s: %s\n",(LPCTSTR)clsSYSTEMTIME(true).sTime(),(LPCTSTR)sDevice(),(LPCTSTR)s);
#else
_chk_utildebug("%s %s: %s\n",(LPCTSTR)clsSYSTEMTIME(true).sTime(),(LPCTSTR)sDevice(),(LPCTSTR)s);
#endif
// _chk_utildebug("%s %s: %s",(LPCTSTR)clsSYSTEMTIME(true).sTime(),(LPCTSTR)_sType,(LPCTSTR)s);
}
void clsIOBase::IOSetActive(bool bActive)
{
_bActive = bActive;
}
void clsIOBase::IONtfyData(const BYTE* pData, UINT nSize)
{
#if 1
String s;
for (int n = 0; n < nSize; ++n)
{
s.AddStrSeparated(" ",String::Format("%02x",pData[n]));
}
IOLog("<--(%d) %s",nSize,(LPCTSTR)s);
#endif
if (_bActive)
{
_pDataStore->NtfyData(pData,nSize);
}
}
void clsIOBase::IOLogWrite(const BYTE* pData, UINT nSize)
{
#if 1
String s;
for (int n = 0; n < nSize; ++n)
{
s.AddStrSeparated(" ",String::Format("%02x",pData[n]));
}
IOLog("-->%s",(LPCTSTR)s);
#endif
}
//////////////////////////////////////////////////////////////////////////////
clsRS232IO::clsRS232IO(IDataSink* pDataStore, UINT nBaudrate)
: clsIOBase("RS232",pDataStore)
, _hDevice(INVALID_HANDLE_VALUE)
, _nBaudrate(nBaudrate)
{
}
clsRS232IO::~clsRS232IO()
{
}
String clsRS232IO::sDevice()
{
return(_sPort);
}
void clsRS232IO::IOReset()
{
DWORD dwState;
COMSTAT State;
::ClearCommError(_hDevice,&dwState,&State);
::PurgeComm(_hDevice,PURGE_TXCLEAR|PURGE_RXCLEAR);
if (!::SetCommMask(_hDevice,EV_RXCHAR|EV_TXEMPTY))
{
throw clsExcept("ERROR: Cannot set COM port mask: %s",(LPCTSTR)String::GetLastError());
}
}
void clsRS232IO::IOClose()
{
if (_hDevice != INVALID_HANDLE_VALUE)
{
ThreadJoin();
::CloseHandle(_hDevice);
_hDevice = INVALID_HANDLE_VALUE;
}
}
bool clsRS232IO::IOOpen(const String& sPort)
{
IOLog("Open %s",(LPCTSTR)sPort);
_sPort = sPort;
_hDevice = ::CreateFile(
String("\\\\.\\") + sPort,
GENERIC_READ|GENERIC_WRITE,
0, // no sharing
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if (_hDevice == INVALID_HANDLE_VALUE)
{
return(false);
}
if (!::PurgeComm(_hDevice,PURGE_TXCLEAR|PURGE_RXCLEAR))
{
throw clsExcept("ERROR: Cannot purge COM queue: %s",(LPCTSTR)String::GetLastError());
}
if (!::SetCommMask(_hDevice,EV_RXCHAR|EV_TXEMPTY))
{
throw clsExcept("ERROR: Cannot set COM port mask: %s",(LPCTSTR)String::GetLastError());
}
//now we need to set baud rate etc,
DCB dcb = {0};
dcb.DCBlength = sizeof(DCB);
if (!::GetCommState(_hDevice,&dcb))
{
throw clsExcept("ERROR: Cannot get COM state: %s",(LPCTSTR)String::GetLastError());
}
dcb.BaudRate = _nBaudrate;
dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.fParity = (dcb.fParity != NOPARITY) ? 1 : 0;
dcb.fBinary = 1;
dcb.fNull = FALSE;
dcb.fDtrControl = DTR_CONTROL_ENABLE;
dcb.fRtsControl = RTS_CONTROL_ENABLE;
dcb.StopBits = ONESTOPBIT;
dcb.fDsrSensitivity = 0;
dcb.fOutxDsrFlow = 0;
dcb.ErrorChar = 0;
dcb.EofChar = 0;
dcb.EvtChar = 0;
dcb.XonChar = 0;
dcb.XoffChar = 0;
if (!::SetCommState(_hDevice,&dcb))
{
throw clsExcept("ERROR: Cannot set COM state: %s",(LPCTSTR)String::GetLastError());
}
//now set the timeouts ( we control the timeout overselves using WaitForXXX()
COMMTIMEOUTS timeouts;
timeouts.ReadIntervalTimeout = MAXDWORD;
timeouts.ReadTotalTimeoutMultiplier = 0;
timeouts.ReadTotalTimeoutConstant = 0;
timeouts.WriteTotalTimeoutMultiplier = 0;
timeouts.WriteTotalTimeoutConstant = 0;
if (!::SetCommTimeouts(_hDevice,&timeouts))
{
throw clsExcept("ERROR: Cannot set COM timeouts: %s",(LPCTSTR)String::GetLastError());
}
ThreadStart(THREAD_PRIORITY_ABOVE_NORMAL);
return(true);
}
virtual DWORD clsRS232IO::ThreadFunction(void)
{
bool bAbort(false);
clsEvent evCOMSignal(TRUE,FALSE);
OVERLAPPED ov = {0};
bool bOverlappedIOPending(false);
ov.hEvent = evCOMSignal.Handle();
while (!bAbort)
{
// IOLog("Wait");
DWORD dwEventMask(0);
bool bProcess(false);
if (!bOverlappedIOPending)
{
// _chk_utildebug(">WaitCommEvent");
if (::WaitCommEvent(_hDevice,&dwEventMask,&ov))
{
// _chk_utildebug("< -> process immediately");
bProcess = true;
}
else
{
if (GetLastError() != ERROR_IO_PENDING)
{
IOLog("ERROR: Cannot get COM event: %s",(LPCTSTR)String::GetLastError());
continue;
}
else
{
// _chk_utildebug("< -> pending");
bOverlappedIOPending = true;
}
}
}
if (bOverlappedIOPending)
{
INT nEvent;
// _chk_utildebug(">WaitSignal");
if (!ThreadWait(5000,nEvent,2,evCOMSignal.Handle(),hAbort()))
{
IOLog("End");
break;
}
// _chk_utildebug("< -> %d",nEvent);
switch (nEvent)
{
case -1:
#if !defined(NO_HEARTBEAT)
// timeout
IOLog("FATAL: cannot read from COMM port (heartbeat missing!): %s",(LPCTSTR)String::GetLastError());
return(1);
#else
break;
#endif
default:
IOLog("unexpected thread event... %x",nEvent);
return(1);
case 1:
IOLog("abort");
bAbort = true;
break;
case 0: // comm event
bOverlappedIOPending = false;
bProcess = true;
break;
}
}
if (bProcess)
{
if (dwEventMask & EV_TXEMPTY)
{
IOLog("(EV_TXEMPTY: data sent)");
}
if (dwEventMask & EV_RXCHAR)
{
IOLog("(EV_RXCHAR: data received)");
DWORD nBytesRead(0);
if (::GetOverlappedResult(_hDevice,&ov,&nBytesRead,true))
{
// _chk_utildebug("GetOverlappedResult: %d bytes",nBytesRead);
BYTE szBuffer[128];
while (nBytesRead)
{
BOOL abRet = ::ReadFile(_hDevice,szBuffer,sizeof(szBuffer),&nBytesRead,&ov);
if (!abRet)
{
IOLog("ReadFile failed: %s",(LPCTSTR)String::GetLastError());
break;
}
if (nBytesRead > 0)
{
IONtfyData(szBuffer,nBytesRead);
}
}
}
}
}
}
return(0);
}
bool clsRS232IO::IOWrite(BYTE* pData, int nSize)
{
if (_hDevice == INVALID_HANDLE_VALUE)
{
throw clsExcept("ERROR: Write() called, but device not opened yet");
}
IOLogWrite(pData,nSize);
int iRet = 0;
OVERLAPPED ov;
ZEROINIT(ov);
DWORD dwBytesWritten = 0;
// _chk_utildebug(">write %d bytes",nSize);
iRet = ::WriteFile(_hDevice,pData,nSize,&dwBytesWritten,&ov);
// _chk_utildebug("<write %d bytes -> %d (written: %d)",nSize,iRet,dwBytesWritten);
if (iRet == 0)
{
if (GetLastError() == ERROR_IO_PENDING)
{
// _chk_utildebug(">pending...");
if (::GetOverlappedResult(_hDevice,&ov,&dwBytesWritten,TRUE))
{
// _chk_utildebug("<pending... OK (%d)",dwBytesWritten);
iRet = 1;
}
else
{
throw clsNotifyExcept("cannot write to COMM port: %s",(LPCTSTR)String::GetLastError());
}
}
else
{
throw clsNotifyExcept("cannot write to COMM port: %s",(LPCTSTR)String::GetLastError());
}
}
return(iRet != 0);
}
//////////////////////////////////////////////////////////////////////////////
LATELOAD_BEGIN_CLASS(clsSetupapi,setupapi,FALSE,TRUE)
LATELOAD_FUNC_4(INVALID_HANDLE_VALUE,HDEVINFO,WINAPI, SetupDiGetClassDevs, CONST GUID*, LPCTSTR, HWND, DWORD)
LATELOAD_FUNC_1_VOID(WINAPI, SetupDiDestroyDeviceInfoList, HDEVINFO)
LATELOAD_FUNC_5(FALSE,BOOL,WINAPI, SetupDiEnumDeviceInterfaces, HDEVINFO, SP_DEVINFO_DATA*, CONST GUID*, DWORD, SP_DEVICE_INTERFACE_DATA*)
LATELOAD_FUNC_6(FALSE,BOOL,WINAPI, SetupDiGetDeviceInterfaceDetail, HDEVINFO, SP_DEVICE_INTERFACE_DATA*, SP_DEVICE_INTERFACE_DETAIL_DATA*, DWORD, DWORD*, SP_DEVINFO_DATA*)
LATELOAD_FUNC_7(FALSE,BOOL,WINAPI, SetupDiGetDeviceRegistryProperty, HDEVINFO, SP_DEVINFO_DATA*, DWORD, DWORD*, PBYTE, DWORD, DWORD*)
LATELOAD_FUNC_2(FALSE,BOOL,WINAPI, SetupDiGetDeviceInfoListClass, HDEVINFO, GUID*)
LATELOAD_FUNC_3(FALSE,BOOL,WINAPI, SetupDiEnumDeviceInfo, HDEVINFO, DWORD, SP_DEVINFO_DATA*)
LATELOAD_FUNC_5(FALSE,BOOL,WINAPI, SetupDiGetDeviceInstanceId, HDEVINFO, SP_DEVINFO_DATA*, LPTSTR, DWORD, DWORD*)
LATELOAD_END_CLASS()
static clsSetupapi __SetupAPI;
clsUSBIO::clsUSBIO(IDataSink* pDataStore)
: clsIOBase("USB",pDataStore)
{
}
clsUSBIO::~clsUSBIO()
{
}
String clsUSBIO::sDevice()
{
return(_Device.sDescription());
}
void clsUSBIO::IOClose()
{
if (_Device.IsOk())
{
IOLog("Close");
ThreadJoin();
_Device.Clear();
}
}
bool clsUSBIO::IOOpen(const String& sPort)
{
IOLog("Open %s",(LPCTSTR)sPort);
if (!FindUSBDeviceOfGUID(sPort,_Device))
{
return(false);
}
ThreadStart(THREAD_PRIORITY_ABOVE_NORMAL);
return(true);
}
void clsUSBIO::NtfyData(const BYTE* pszData, UINT nSize)
{
if (nSize > 0)
{
IONtfyData(pszData,nSize);
}
}
virtual DWORD clsUSBIO::ThreadFunction(void)
{
clsEvent evDataReady(TRUE,FALSE);
OVERLAPPED ovRead = {0};
bool bAborted = false;
ovRead.hEvent = evDataReady.Handle();
while (!bAborted)
{
BYTE szTmp[1024];
DWORD dwBytesRead(0);
szTmp[0] = 0;
if (::ReadFile(_Device.Handle(),szTmp,sizeof(szTmp),&dwBytesRead,&ovRead))
{
if (dwBytesRead == 0)
{
IOLog("USB port did close unexpectedly (EOF): %s",(LPCTSTR)String::GetLastError());
return(1);
}
IONtfyData(szTmp,dwBytesRead);
}
else
{
if (GetLastError() == ERROR_IO_PENDING)
{
INT nEvent;
if (ThreadWait(2000, nEvent, 2, ovRead.hEvent, hAbort()))
{
switch (nEvent)
{
case THREADEVENT_TIMEOUT:
IOLog("USB::Read::Timeout");
return(1);
case THREADEVENT_ERROR:
IOLog("USB::Read::Error");
return(1);
case 0:
if (!GetOverlappedResult(_Device.Handle(),&ovRead,&dwBytesRead,FALSE))
{
IOLog("USB port did close unexpectedly: %s",(LPCTSTR)String::GetLastError());
return(1);
}
IONtfyData(szTmp,dwBytesRead);
break;
case 1:
bAborted = true;
break;
}
}
else
{
IOLog("USB::Read::Error (2)");
bAborted = true;
}
evDataReady.Reset();
}
else
{
IOLog("USB port issues error: %s",(LPCTSTR)String::GetLastError());
}
}
}
return(0);
}
bool clsUSBIO::IOWrite(BYTE* pData, int nSize)
{
if (!_Device.IsOk())
{
throw clsExcept("ERROR: Write() called, but device not opened yet");
}
IOLogWrite(pData,nSize);
int iRet = 0;
OVERLAPPED ov;
ZEROINIT(ov);
DWORD dwBytesWritten = 0;
iRet = ::WriteFile(_Device.Handle(),pData,nSize,&dwBytesWritten,&ov);
if (iRet == 0)
{
if (GetLastError() == ERROR_IO_PENDING)
{
if (GetOverlappedResult(_Device.Handle(),&ov,&dwBytesWritten,TRUE))
{
iRet = 1;
}
else
{
throw clsNotifyExcept("cannot write to USB port: %s",(LPCTSTR)String::GetLastError());
}
}
else
{
throw clsNotifyExcept("cannot write to USB port: %s",(LPCTSTR)String::GetLastError());
}
}
return(iRet != 0);
}
bool clsUSBIO::FindUSBDeviceOfGUID(String sDevice, clsIODevice& Device)
{
GUID guidInterface;
CLSIDFromString(L"{a5dcbf10-6530-11d2-901f-00c04fb951ed}",&guidInterface);
HDEVINFO hDevInfo = __SetupAPI.SetupDiGetClassDevs(
&guidInterface,
NULL,
0,
DIGCF_PRESENT|DIGCF_DEVICEINTERFACE);
if (hDevInfo != INVALID_HANDLE_VALUE)
{
SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;
ZEROINIT_(DeviceInterfaceData,cbSize);
for (int nInterface = 0;
__SetupAPI.SetupDiEnumDeviceInterfaces(hDevInfo,
NULL,
&guidInterface,
nInterface,
&DeviceInterfaceData) &&
!Device.IsOk(); // get only first device! I assume there's only one.
++nInterface)
{
DWORD dwSize;
SP_DEVINFO_DATA DeviceInfoData;
ZEROINIT_(DeviceInfoData,cbSize);
__SetupAPI.SetupDiGetDeviceInterfaceDetail(hDevInfo,&DeviceInterfaceData,NULL,0,&dwSize,NULL);
SP_DEVICE_INTERFACE_DETAIL_DATA* pDetail = (SP_DEVICE_INTERFACE_DETAIL_DATA*)(new BYTE[dwSize]);
pDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
if (__SetupAPI.SetupDiGetDeviceInterfaceDetail(hDevInfo,&DeviceInterfaceData,pDetail,dwSize,&dwSize,&DeviceInfoData))
{
String sDevicePath(pDetail->DevicePath);
/*
printf("------------------------\n");
printf(" ID='%s'\n",(LPCTSTR)GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_DEVICEDESC));
printf(" Mfg='%s'\n",(LPCTSTR)GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_MFG));
printf(" Name='%s'\n",(LPCTSTR)GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_FRIENDLYNAME));
printf(" PhysName='%s'\n",(LPCTSTR)GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_PHYSICAL_DEVICE_OBJECT_NAME));
printf(" DevType='%s'\n",(LPCTSTR)GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_DEVTYPE));
printf(" Driver='%s'\n",(LPCTSTR)GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_DRIVER));
printf(" path='%s'\n",(LPCTSTR)sDevicePath);
*/
if (GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_DEVICEDESC) == sDevice)
{
HANDLE hFile = ::CreateFile(
sDevicePath,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
NULL);
if (hFile != INVALID_HANDLE_VALUE)
{
Device.Set(
hFile,
GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_DEVICEDESC),
GetDeviceDescProperty(hDevInfo,DeviceInfoData,SPDRP_MFG));
}
else
{
IOLog("open error: %s",(LPCTSTR)String::GetLastError());
}
}
}
delete[] (BYTE*)pDetail;
}
__SetupAPI.SetupDiDestroyDeviceInfoList(hDevInfo);
}
return(Device.IsOk());
}
String clsUSBIO::GetDeviceDescProperty(HDEVINFO hDevInfo, SP_DEVINFO_DATA& DeviceInfoData, DWORD nSPDRP)
{
String sResult;
DWORD DataT;
clsBuffer buf(100);
DWORD dwBufferSize(100);
//
// Call function with null to begin with,
// then use the returned buffer size (doubled)
// to Alloc the buffer. Keep calling until
// success or an unknown failure.
//
// Double the returned buffersize to correct
// for underlying legacy CM functions that
// return an incorrect buffersize value on
// DBCS/MBCS systems.
//
while (!__SetupAPI.SetupDiGetDeviceRegistryProperty(
hDevInfo,
&DeviceInfoData,
nSPDRP,
&DataT,
(PBYTE)buf.Adr(),
buf.Size(),
&dwBufferSize))
{
if (::GetLastError() == ERROR_INSUFFICIENT_BUFFER)
{
// Change the buffer size.
// Double the size to avoid problems on
// W2k MBCS systems per KB 888609.
buf.Resize(dwBufferSize * 2);
}
else
{
// Insert error handling here.
break;
}
}
switch (DataT)
{
case REG_SZ:
sResult = (LPCSTR)buf;
break;
}
return(sResult);
}
//////////////////////////////////////////////////////////////////////////////
LATELOAD_BEGIN_CLASS(clsFTDI,ftd2xx,FALSE,TRUE)
LATELOAD_FUNC_3(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_ListDevices, void*, void*, DWORD)
LATELOAD_FUNC_2(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_Open, int, FT_HANDLE*)
LATELOAD_FUNC_1(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_GetLibraryVersion, DWORD*)
LATELOAD_FUNC_4(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_Read, FT_HANDLE, void*, DWORD, LPDWORD)
LATELOAD_FUNC_4(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_Write, FT_HANDLE, void*, DWORD, LPDWORD)
LATELOAD_FUNC_2(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_Purge, FT_HANDLE, ULONG)
LATELOAD_FUNC_2(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_SetBaudRate, FT_HANDLE, ULONG)
LATELOAD_FUNC_4(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_SetDataCharacteristics, FT_HANDLE, UCHAR, UCHAR, UCHAR)
LATELOAD_FUNC_4(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_SetFlowControl, FT_HANDLE, USHORT, UCHAR, UCHAR)
LATELOAD_FUNC_1(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_ResetDevice, FT_HANDLE)
LATELOAD_FUNC_1(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_ResetPort, FT_HANDLE)
LATELOAD_FUNC_1(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_CyclePort, FT_HANDLE)
LATELOAD_FUNC_5(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_SetChars, FT_HANDLE, UCHAR, UCHAR, UCHAR, UCHAR)
LATELOAD_FUNC_3(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_SetTimeouts, FT_HANDLE, ULONG, ULONG)
LATELOAD_FUNC_2(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_GetDriverVersion, FT_HANDLE, DWORD*)
LATELOAD_FUNC_6(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_GetDeviceInfo, FT_HANDLE, FT_DEVICE*, DWORD*, CHAR*, CHAR*, void*)
LATELOAD_FUNC_3(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_SetEventNotification, FT_HANDLE, DWORD, HANDLE)
LATELOAD_FUNC_2(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_GetQueueStatus, FT_HANDLE, DWORD*)
LATELOAD_FUNC_1(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_StopInTask, FT_HANDLE)
LATELOAD_FUNC_1(FT_OTHER_ERROR,FT_STATUS,FTAPI, FT_RestartInTask, FT_HANDLE)
LATELOAD_FUNC_7(INVALID_HANDLE_VALUE,FT_HANDLE,FTAPI, FT_W32_CreateFile, LPCSTR, DWORD, DWORD, SECURITY_ATTRIBUTES*, DWORD, DWORD, HANDLE)
LATELOAD_FUNC_1(FALSE,BOOL,FTAPI, FT_W32_CloseHandle, FT_HANDLE)
LATELOAD_FUNC_5(FALSE,BOOL,FTAPI, FT_W32_ReadFile, FT_HANDLE, void*, DWORD, DWORD*, OVERLAPPED*)
LATELOAD_FUNC_5(FALSE,BOOL,FTAPI, FT_W32_WriteFile, FT_HANDLE, void*, DWORD, DWORD*, OVERLAPPED*)
LATELOAD_FUNC_1(0,DWORD,FTAPI, FT_W32_GetLastError, FT_HANDLE)
LATELOAD_FUNC_4(FALSE,BOOL,FTAPI, FT_W32_GetOverlappedResult,FT_HANDLE, OVERLAPPED*, DWORD*, BOOL)
LATELOAD_FUNC_2(FALSE,BOOL,FTAPI, FT_W32_GetCommState, FT_HANDLE, FTDCB*)
LATELOAD_FUNC_2(FALSE,BOOL,FTAPI, FT_W32_SetCommState, FT_HANDLE, FTDCB*)
LATELOAD_FUNC_2(FALSE,BOOL,FTAPI, FT_W32_SetCommMask, FT_HANDLE, DWORD)
LATELOAD_FUNC_2(FALSE,BOOL,FTAPI, FT_W32_SetCommTimeouts, FT_HANDLE, FTTIMEOUTS*)
LATELOAD_FUNC_3(FALSE,BOOL,FTAPI, FT_W32_WaitCommEvent, FT_HANDLE, DWORD*, OVERLAPPED*)
LATELOAD_FUNC_1(FALSE,BOOL,FTAPI, FT_W32_CancelIo, FT_HANDLE)
LATELOAD_END_CLASS()
static clsFTDI __FTDI;
clsFTDIIOBase::clsFTDIIOBase(const String& sType, IDataSink* pDataStore, UINT nBaudrate)
: clsIOBase(sType,pDataStore)
, _nDevice(-1)
, _hDevice(NULL)
, _nBaudrate(nBaudrate)
{
}
clsFTDIIOBase::~clsFTDIIOBase()
{
IOLog(TEXT("clsFTDIIOBase::~clsFTDIIOBase"));
IOClose();
}
String clsFTDIIOBase::sDevice()
{
return(String::Format("%s:%s",(LPCTSTR)_sType,(LPCTSTR)_sPort));
}
void clsFTDIIOBase::IOReset()
{
if (_hDevice)
{
__FTDI.FT_Purge(_hDevice, FT_PURGE_TX | FT_PURGE_RX);
__FTDI.FT_ResetDevice(_hDevice);
/*
__FTDI.FT_SetBaudRate(_hDevice, _nBaudrate);
__FTDI.FT_SetDataCharacteristics(_hDevice, FT_BITS_8, FT_STOP_BITS_1, FT_PARITY_NONE);
__FTDI.FT_SetFlowControl(_hDevice, FT_FLOW_RTS_CTS, 0, 0);
__FTDI.FT_SetChars(_hDevice, 0, 0, 0, 0);
__FTDI.FT_SetTimeouts(_hDevice, 100, 100);
*/
}
}
void clsFTDIIOBase::IOClose()
{
if (_hDevice)
{
IOLog(TEXT("clsFTDIIOBase::IOClose()"));
ThreadJoin();
__FTDI.FT_Purge(_hDevice, FT_PURGE_TX);
__FTDI.FT_ResetDevice(_hDevice);
IOCloseHandle();
_hDevice = NULL;
_nDevice = -1;
}
}
//////////////////////////////////////////////////////////////////////////////
clsFTDIIO::clsFTDIIO(IDataSink* pDataStore, UINT nBaudrate)
: clsFTDIIOBase("FTDI",pDataStore,nBaudrate)
{
}
bool clsFTDIIO::IOOpen(const String& sDevice)
{
DWORD nVersion;
if (__FTDI.FT_GetLibraryVersion(&nVersion) == FT_OK)
{
IOLog("FTDI library version %d.%02d.%02d",
(nVersion >> 16) & 0xff,
(nVersion >> 8) & 0xff,
nVersion & 0xff);
}
IOLog("Open %s",(LPCTSTR)sDevice);
_sPort = sDevice;
DWORD nDevices = 0;
if (__FTDI.FT_ListDevices(&nDevices,NULL,FT_LIST_NUMBER_ONLY) == FT_OK)
{
IOLog("number of FTDI devices: %d",nDevices);
for (int nDevice = 0; nDevice < nDevices; ++nDevice)
{
char buf[80];
if (__FTDI.FT_ListDevices((void*)nDevice,buf,FT_LIST_BY_INDEX | FT_OPEN_BY_DESCRIPTION) == FT_OK)
{
IOLog(" %d: '%s'",nDevice,buf);
if (sDevice.icmp(buf) == 0)
{
_nDevice = nDevice;
}
}
}
}
IOLog("device ID=%d",_nDevice);
if (_nDevice >= 0)
{
if (__FTDI.FT_Open(_nDevice, &_hDevice) != FT_OK)
{
_nDevice = -1;
throw clsExcept("cannot open FTDI device %d (%s)",_nDevice,(LPCTSTR)sDevice);
}
if (__FTDI.FT_GetDriverVersion(_hDevice,&nVersion) == FT_OK)
{
IOLog("FTDI driver version %d.%02d.%02d",
(nVersion >> 16) & 0xff,
(nVersion >> 8) & 0xff,
nVersion & 0xff);
}
DWORD nType;
DWORD nID;
CHAR szSerial[16+1];
CHAR szDescription[64+1];
if (__FTDI.FT_GetDeviceInfo(_hDevice,&nType,&nID,szSerial,szDescription,NULL) == FT_OK)
{
IOLog("FTDI device version %d.%02d.%02d ('%s')",
(nVersion >> 16) & 0xff,
(nVersion >> 8) & 0xff,
nVersion & 0xff,
szDescription);
}
__FTDI.FT_Purge(_hDevice, FT_PURGE_TX | FT_PURGE_RX);
__FTDI.FT_ResetDevice(_hDevice);
__FTDI.FT_SetBaudRate(_hDevice, _nBaudrate);
__FTDI.FT_SetDataCharacteristics(_hDevice, FT_BITS_8, FT_STOP_BITS_1, FT_PARITY_NONE);
__FTDI.FT_SetFlowControl(_hDevice, FT_FLOW_RTS_CTS, 0, 0);
__FTDI.FT_SetChars(_hDevice, 0, 0, 0, 0);
__FTDI.FT_SetTimeouts(_hDevice, 100, 100);
ThreadStart(THREAD_PRIORITY_ABOVE_NORMAL);
}
return(_nDevice >= 0);
}
void clsFTDIIO::IOCloseHandle()
{
::CloseHandle(_hDevice);
}
virtual DWORD clsFTDIIO::ThreadFunction(void)
{
clsEvent evCharReceived(false);
INT nEvent(0);
DWORD dwTimeout(500);
if (__FTDI.FT_SetEventNotification(_hDevice,FT_EVENT_RXCHAR,evCharReceived.Handle()) != FT_OK)
{
IOLog("FT_SetEventNotification did not work, switch to polling mode");
dwTimeout = 50; // polling
}
while (ThreadWait(dwTimeout,nEvent,1,evCharReceived.Handle()))
{
IOLog("Thread: event %d",nEvent);
BYTE szTmp[100];
DWORD dwBytesInQueue(0);
FT_STATUS nFTDIState;
clsCritObj CO(_FTDIAccess);
if ((nFTDIState = __FTDI.FT_GetQueueStatus(_hDevice, &dwBytesInQueue)) == FT_OK)
{
// IOLog("%d bytes waiting",dwBytesInQueue);
if (dwBytesInQueue > 0)
{
DWORD dwBytesRead(0);
if (__FTDI.FT_Read(_hDevice, szTmp, min(dwBytesInQueue,sizeof(szTmp)), &dwBytesRead) == FT_OK)
{
if (dwBytesRead > 0)
{
IONtfyData(szTmp,dwBytesRead);
}
}
}
}
else
{
switch (nFTDIState)
{
case FT_IO_ERROR:
IOLog("FT err: FT_IO_ERROR",nFTDIState);
__FTDI.FT_ResetPort(_hDevice);
break;
default:
IOLog("FT err: %d",nFTDIState);
break;
}
}
}
return(0);
}
bool clsFTDIIO::IOWrite(BYTE* pData, int nSize)
{
if (_hDevice == NULL)
{
throw clsExcept("ERROR: Write() called, but device not opened yet");
}
IOLogWrite(pData,nSize);
clsCritObj CO(_FTDIAccess);
ULONG nDummy;
return(__FTDI.FT_Write(_hDevice,pData,nSize,&nDummy) && nDummy > 0);
}
//////////////////////////////////////////////////////////////////////////////
clsFTDIW32IO::clsFTDIW32IO(IDataSink* pDataStore, UINT nBaudrate)
: clsFTDIIOBase("FTDIW32",pDataStore,nBaudrate)
{
}
#define FTDI_Check(cmd,args) \
if ((ftStatus = cmd args) != FT_OK) \
{ \
_chk_utildebug("%s failed: 0x%x",#cmd,ftStatus); \
}
bool clsFTDIW32IO::IOOpen(const String& sPort)
{
DWORD nVersion;
if (__FTDI.FT_GetLibraryVersion(&nVersion) == FT_OK)
{
IOLog("FTDI library version %d.%02d.%02d",
(nVersion >> 16) & 0xff,
(nVersion >> 8) & 0xff,
nVersion & 0xff);
}
IOLog("Open '%s'",(LPCTSTR)sPort);
_sPort = sPort;
_hDevice = __FTDI.FT_W32_CreateFile(
sPort,
GENERIC_READ|GENERIC_WRITE,
0, // no sharing
NULL,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED | FT_OPEN_BY_DESCRIPTION,
NULL);
if (_hDevice == INVALID_HANDLE_VALUE)
{
IOLog("Open '%s' failed...",(LPCTSTR)sPort);
return(false);
}
if (__FTDI.FT_GetDriverVersion(_hDevice,&nVersion) == FT_OK)
{
IOLog("FTDI driver version %d.%02d.%02d",
(nVersion >> 16) & 0xff,
(nVersion >> 8) & 0xff,
nVersion & 0xff);
}
DWORD nType;
DWORD nID;
CHAR szSerial[16+1];
CHAR szDescription[64+1];
if (__FTDI.FT_GetDeviceInfo(_hDevice,&nType,&nID,szSerial,szDescription,NULL) == FT_OK)
{
IOLog("FTDI device version %d.%02d.%02d ('%s', serial# '%s')",
(nVersion >> 16) & 0xff,
(nVersion >> 8) & 0xff,
nVersion & 0xff,
szDescription,
szSerial);
}
FT_STATUS ftStatus;
do
{
ftStatus = __FTDI.FT_StopInTask(_hDevice);
if (ftStatus != FT_OK)
{
_chk_utildebug("FT_StopInTask returned %x",ftStatus);
}
}
while (ftStatus != FT_OK);
FTDI_Check(__FTDI.FT_Purge,(_hDevice, FT_PURGE_TX | FT_PURGE_RX));
if (!__FTDI.FT_W32_SetCommMask(_hDevice,EV_RXCHAR|EV_TXEMPTY))
{
throw clsExcept("ERROR: Cannot set COM port mask: %s",(LPCTSTR)String::GetSysErrorString(__FTDI.FT_W32_GetLastError(_hDevice)));
}
//now we need to set baud rate etc,
FTDCB dcb = {0};