BOOL PCMCIA_Get_WD_handle(HANDLE *phWD)
{
WD_VERSION ver;
*phWD = WD_Open();
if (*phWD==INVALID_HANDLE_VALUE)
{
printf("Failed opening " WD_PROD_NAME " device\n");
return FALSE;
}
BZERO(ver);
WD_Version(*phWD,&ver);
if (ver.dwVer<WD_VER)
{
printf("Incorrect " WD_PROD_NAME " version\n");
WD_Close (*phWD);
*phWD = INVALID_HANDLE_VALUE;
return FALSE;
}
return TRUE;
}
// Function: LPT_Open()
// Register an ISA card to enable working with it.
// The handle returned from this function is used by most of the functions in this file.
// Parameters:
// phLPT [out] returns the handle to the opened card.
// Return Value:
// TRUE if the card was opened successfully. FALSE if there were any errors.
BOOL LPT_Open (LPT_HANDLE *phLPT)
{
LPT_HANDLE hLPT = (LPT_HANDLE)malloc(sizeof(LPT_STRUCT));
WD_VERSION ver;
DWORD dwStatus;
*phLPT = NULL;
LPT_ErrorString[0] = '\0';
if (!hLPT)
{
sprintf(LPT_ErrorString, "Failed allocating memory\n");
return FALSE;
}
BZERO(*hLPT);
dwStatus = LPT_RegisterWinDriver();
if (dwStatus)
{
sprintf(LPT_ErrorString, "Failed registering WinDriver license\n");
goto Exit;
}
hLPT->hWD = WD_Open();
// Verify that the handle is valid and that the version number is correct
if (hLPT->hWD==INVALID_HANDLE_VALUE)
{
sprintf(LPT_ErrorString, "Failed opening WinDriver device\n");
goto Exit;
}
BZERO(ver);
WD_Version(hLPT->hWD,&ver);
if (ver.dwVer<WD_VER)
{
sprintf(LPT_ErrorString, "Incorrect WinDriver version. Expected %d.%02d, got %ld.%02ld\n",
WD_VER/100, WD_VER, ver.dwVer/100, ver.dwVer);
goto Exit;
}
LPT_SetCardElements(hLPT);
hLPT->cardReg.fCheckLockOnly = FALSE;
dwStatus = WD_CardRegister(hLPT->hWD, &hLPT->cardReg);
if (dwStatus)
{
sprintf(LPT_ErrorString, "Failed locking device. Status 0x%lx - %s\n",
dwStatus, Stat2Str(dwStatus));
goto Exit;
}
BZERO (hLPT->IntA);
hLPT->IntA.Int.hInterrupt = hLPT->cardReg.Card.Item[LPT_IntA].I.Int.hInterrupt;
hLPT->IntA.Int.dwOptions = hLPT->cardReg.Card.Item[LPT_IntA].I.Int.dwOptions;
// LPT_Open() was successful
*phLPT = hLPT;
return TRUE;
Exit:
// An error occured during the execution of LPT_Open()
if (hLPT->cardReg.hCard)
WD_CardUnregister(hLPT->hWD, &hLPT->cardReg);
if (hLPT->hWD!=INVALID_HANDLE_VALUE)
WD_Close(hLPT->hWD);
free (hLPT);
return FALSE;
}
