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88 lines
2.3 KiB
88 lines
2.3 KiB
/*****************************************************************************
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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\0X15A06.C
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*
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* FUNCTION: kdi_AllocateAdapterChannel
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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\0x15a06.c $
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*
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* Rev 1.0 02 Dec 1993 16:17:18 KEVINKES
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* Initial Revision.
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*
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*****************************************************************************/
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#define FCT_ID 0x15A06
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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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IO_ALLOCATION_ACTION kdi_AllocateAdapterChannel
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(
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/* INPUT PARAMETERS: */
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PDEVICE_OBJECT device_object,
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PIRP irp,
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dVoidPtr map_register_base,
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dVoidPtr context
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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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* Routine Description:
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*
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* This DPC is called whenever the floppy thread is trying to allocate
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* the adapter channel (like before doing a read or write). It saves
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* the map_register_base in the controller data area, and sets the
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* AllocateAdapterChannelEvent to awaken the thread.
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*
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* Arguments:
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*
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* device_object - unused.
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*
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* irp - unused.
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*
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* map_register_base - the base of the map registers that can be used
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* for this transfer.
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*
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* context - a pointer to our controller data area.
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*
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* Return Value:
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*
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* Returns Allocation Action 'KeepObject' which means that the adapter
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* object will be held for now (to be released explicitly later).
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*
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* DEFINITIONS: *************************************************************/
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{
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/* DATA: ********************************************************************/
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KdiContextPtr kdi_context = (KdiContextPtr) context;
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/* CODE: ********************************************************************/
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UNREFERENCED_PARAMETER( device_object );
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UNREFERENCED_PARAMETER( irp );
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kdi_context->map_register_base = map_register_base;
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(dVoid) KeSetEvent(
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&kdi_context->allocate_adapter_channel_event,
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0L,
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dFALSE );
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return KeepObject;
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}
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