LRESULT CALLBACK BitBanger(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG: //IDC_PRINTMON
if (!strlen(SerialCaptureFile))
strcpy(SerialCaptureFile,"No Capture File");
SendDlgItemMessage(hDlg,IDC_SERIALFILE,WM_SETTEXT,strlen(SerialCaptureFile),(LPARAM)(LPCSTR)SerialCaptureFile);
SendDlgItemMessage(hDlg,IDC_LF,BM_SETCHECK,TextMode,0);
SendDlgItemMessage(hDlg,IDC_PRINTMON,BM_SETCHECK,PrtMon,0);
break;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDC_OPEN:
SelectFile(SerialCaptureFile);
SendDlgItemMessage(hDlg,IDC_SERIALFILE,WM_SETTEXT,strlen(SerialCaptureFile),(LPARAM)(LPCSTR)SerialCaptureFile);
break;
case IDC_CLOSE:
ClosePrintFile();
strcpy(SerialCaptureFile,"No Capture File");
SendDlgItemMessage(hDlg,IDC_SERIALFILE,WM_SETTEXT,strlen(SerialCaptureFile),(LPARAM)(LPCSTR)SerialCaptureFile);
PrtMon=FALSE;
SetMonState(PrtMon);
SendDlgItemMessage(hDlg,IDC_PRINTMON,BM_SETCHECK,PrtMon,0);
break;
case IDC_LF:
TextMode=(char)SendDlgItemMessage(hDlg,IDC_LF,BM_GETCHECK,0,0);
SetSerialParams(TextMode);
break;
case IDC_PRINTMON:
PrtMon=(char)SendDlgItemMessage(hDlg,IDC_PRINTMON,BM_GETCHECK,0,0);
SetMonState(PrtMon);
} //End switch wParam
break;
}
return(0);
}
int RS232Interface::OpenSerial(int no)
{
UserDebug1(UserApp1, "RS232Interface::OpenSerial(%d) I\n", no);
int ret_val = E2ERR_OPENFAILED;
if (no >= 1 && no <= MAX_COMPORTS)
{
#ifdef _WINDOWS
char str[MAXPATH];
snprintf(str, MAXPATH, "%s%d", profile->GetDevName(), no);
hCom = CreateFile(str,
GENERIC_READ | GENERIC_WRITE,
0, /* comm devices must be opened w/exclusive-access */
NULL, /* no security attrs */
OPEN_EXISTING, /* comm devices must use OPEN_EXISTING */
0, /* not overlapped I/O */
NULL /* hTemplate must be NULL for comm devices */
);
if ( hCom != INVALID_HANDLE_VALUE )
{
GetCommState(hCom, &old_dcb);
GetCommTimeouts(hCom, &old_timeout);
GetCommMask(hCom, &old_mask);
if (wait_endTX_mode)
SetCommMask(hCom, EV_TXEMPTY);
else
SetCommMask(hCom, 0);
SetSerialTimeouts();
SetSerialParams();
ret_val = OK;
}
#else
#ifdef _LINUX_
char devname[MAXPATH];
int chars_read;
no--; //linux call ttyS0 --> COM1, ttyS1 --> COM2, etc..
// implement device locking in /var/lock/LCK..ttySx
snprintf(lockname, MAXPATH, "%s/LCK..%s%d", profile->GetLockDir(), profile->GetDevName(), no);
UserDebug1(UserApp2, "RS232Interface::OpenSerial() now lock the device %s\n", lockname);
fd = open ((const char *)lockname,O_RDWR|O_EXCL|O_CREAT);
if (fd < 0)
{
fd = open ((const char *)lockname,O_RDONLY);
lockname[0]=0;
UserDebug1(UserApp2, "RS232Interface::OpenSerial Can't lock port %d\n", no);
if (fd < 0)
return ret_val;
chars_read = read(fd,devname,MAXLINESIZE-1);
devname[chars_read]=0;
UserDebug1(UserApp2, "RS232Interface::OpenSeriial locked by %s\n", devname);
close(fd);
return ret_val;
}
snprintf(devname, MAXPATH, "%10d\n", (int) getpid() );
write(fd, devname, strlen(devname));
close(fd);
fd = INVALID_HANDLE_VALUE;
snprintf(devname, MAXPATH, "%s/%s%d", profile->GetDevDir(), profile->GetDevName(), no);
UserDebug1(UserApp2, "RS232Interface::OpenSerial() now open the device %s\n", devname);
fd = open ((const char *)devname, O_RDWR|O_NONBLOCK|O_EXCL);
// fd = open ((const char *)devname, O_RDWR);
UserDebug1(UserApp2, "RS232Interface::OpenSerial open result = %d\n", fd);
if (fd < 0)
{
UserDebug1(UserApp2, "RS232Interface::OpenSerial can't open the device %s\n", devname);
unlink(lockname);
return ret_val;
}
// Check for the needed IOCTLS
#if defined(TIOCSBRK) && defined(TIOCCBRK) //check if available for compilation
// Check if available during runtime
if ((ioctl(fd,TIOCSBRK,0) == -1) || (ioctl(fd,TIOCCBRK,0) == -1))
{
UserDebug(UserApp2, "RS232Interface::OpenPort IOCTL not available\n");
return ret_val;
}
#else
close(fd);
fd = INVALID_HANDLE_VALUE;
unlink(lockname);
return ret_val;
#endif /*TIOCSBRK*/
/* open sets RTS and DTR, reset it */
#if defined(TIOCMGET) && defined(TIOCMSET) //check if available for compilation
int flags;
if (ioctl(fd,TIOCMGET, &flags)== -1)
{
UserDebug(UserApp2, "RS232Interface::OpenPort IOCTL not available\n");
close(fd);
fd = INVALID_HANDLE_VALUE;
unlink(lockname);
return ret_val;
}
else
{
flags &= ~(TIOCM_RTS|TIOCM_DTR);
if (ioctl(fd,TIOCMSET, &flags)== -1)
{
UserDebug(UserApp2, "RS232Interface::OpenPort IOCTL not available\n");
close(fd);
fd = INVALID_HANDLE_VALUE;
unlink(lockname);
return ret_val;
}
}
#endif /*TIOCMGET */
UserDebug(UserApp2, "RS232Interface::OpenPort GETATTR\n");
if (tcgetattr(fd, &old_termios) == -1)
{
UserDebug(UserApp2, "RS232Interface::OpenPort GETATTR failed\n");
close(fd);
fd = INVALID_HANDLE_VALUE;
unlink(lockname);
return ret_val;
}
UserDebug(UserApp2, "RS232Interface::OpenPort SetTimeouts && Params\n");
if ( SetSerialTimeouts() != OK )
{
UserDebug(UserApp2, "RS232Interface::OpenPort SetSerialTimeouts() failed\n");
close(fd);
fd = INVALID_HANDLE_VALUE;
unlink(lockname);
}
else
if ( SetSerialParams() != OK )
{
UserDebug(UserApp2, "RS232Interface::OpenPort SetSerialParams() failed\n");
close(fd);
fd = INVALID_HANDLE_VALUE;
unlink(lockname);
}
else
{
fd_clear_flag(fd, O_NONBLOCK); //Restore to blocking mode
ret_val = OK;
}
#endif /*_LINUX_*/
#endif
}
UserDebug1(UserApp2, "RS232Interface::OpenSerial() = %d O\n", ret_val);
return ret_val;
}
