84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/*****************************************************************************
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*
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* COPYRIGHT 1993 - COLORADO MEMORY SYSTEMS, INC.
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* ALL RIGHTS RESERVED.
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*
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******************************************************************************
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*
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* FILE: \SE\DRIVER\Q117KDI\NT\SRC\0X15A24.C
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*
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* FUNCTION: kdi_SetDMADirection
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*
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* PURPOSE:
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*
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* HISTORY:
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* $Log: J:\se.vcs\driver\q117kdi\nt\src\0x15a24.c $
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*
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* Rev 1.0 09 Dec 1993 13:38:38 KEVINKES
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* Initial Revision.
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*
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*****************************************************************************/
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#define FCT_ID 0x15A24
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#include <ntddk.h>
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#include <flpyenbl.h>
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#include "include\public\adi_api.h"
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#include "include\public\frb_api.h"
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#include "q117kdi\include\kdiwhio.h"
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#include "q117kdi\include\kdiwpriv.h"
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#include "include\private\kdi_pub.h"
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/*endinclude*/
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dBoolean kdi_SetDMADirection
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(
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/* INPUT PARAMETERS: */
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dVoidPtr kdi_context,
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dBoolean dma_direction
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/* UPDATE PARAMETERS: */
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/* OUTPUT PARAMETERS: */
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)
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/* COMMENTS: *****************************************************************
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*
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* DEFINITIONS: *************************************************************/
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{
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/* DATA: ********************************************************************/
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dUByte ultra_data,setup_value;
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dBoolean reset_fdc = dFALSE; /* determines whether driver resets the FDC*/
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KdiContextPtr kdi_ptr = (KdiContextPtr)kdi_context;
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/* CODE: ********************************************************************/
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if (kdi_ptr->controller_data.dmaDirection != (dUByte)dma_direction &&
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kdi_ptr->controller_data.floppyEnablerApiSupported
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) {
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FDC_MODE_SELECT fdcMode;
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NTSTATUS status;
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kdi_ptr->controller_data.dmaDirection = dma_direction;
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fdcMode.structSize = sizeof(fdcMode);
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if (dma_direction == DMA_READ)
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fdcMode.DmaDirection = FDC_READ_FROM_MEMORY;
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else
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fdcMode.DmaDirection = FDC_WRITE_TO_MEMORY;
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status = kdi_FloppyEnabler(
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kdi_ptr->controller_data.apiDeviceObject,
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IOCTL_SET_FDC_MODE,
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&fdcMode);
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reset_fdc = TRUE;
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}
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return reset_fdc;
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}
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