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144 lines
3.6 KiB
144 lines
3.6 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\0X15A01.C
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*
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* FUNCTION: kdi_DispatchDeviceControl
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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\0x15a01.c $
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*
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* Rev 1.1 18 Jan 1994 16:24:10 KEVINKES
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* Updated the debug code and fixed compile errors.
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*
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* Rev 1.0 02 Dec 1993 15:19:02 KEVINKES
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* Initial Revision.
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*
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*****************************************************************************/
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#define FCT_ID 0x15A01
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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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NTSTATUS kdi_DispatchDeviceControl
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(
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/* INPUT PARAMETERS: */
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PDEVICE_OBJECT device_object_ptr,
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/* UPDATE PARAMETERS: */
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PIRP irp
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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 routine is called by the I/O system to perform a device I/O
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* control function.
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*
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* Arguments:
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*
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* device_object_ptr - a pointer to the object that represents the device
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* that I/O is to be done on.
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*
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* irp - a pointer to the I/O Request Packet for this request.
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*
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* Return Value:
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*
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* STATUS_SUCCESS or STATUS_PENDING if recognized I/O control code,
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* STATUS_INVALID_DEVICE_REQUEST otherwise.
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*
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* DEFINITIONS: *************************************************************/
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{
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/* DATA: ********************************************************************/
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dStatus status=ERR_NO_ERR; /* Status or error condition.*/
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PIO_STACK_LOCATION irp_stack_ptr;
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NTSTATUS nt_status;
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KdiContextPtr kdi_context;
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/* CODE: ********************************************************************/
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kdi_context = ((QICDeviceContextPtr)device_object_ptr->DeviceExtension)->kdi_context;
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irp_stack_ptr = IoGetCurrentIrpStackLocation( irp );
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switch( irp_stack_ptr->Parameters.DeviceIoControl.IoControlCode) {
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case IOCTL_QIC117_CLEAR_QUEUE:
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(dVoid) KeResetEvent( &kdi_context->clear_queue_event );
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kdi_context->clear_queue = dTRUE;
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kdi_context->abort_requested = dTRUE;
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IoMarkIrpPending( irp );
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(dVoid) ExInterlockedInsertTailList(
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&kdi_context->list_entry,
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&irp->Tail.Overlay.ListEntry,
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&kdi_context->list_spin_lock );
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(dVoid) KeReleaseSemaphore(
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&kdi_context->request_semaphore,
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(KPRIORITY) 0,
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1,
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dFALSE );
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(dVoid) KeWaitForSingleObject(
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/*(dVoid)*/ &kdi_context->clear_queue_event,
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Suspended,
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KernelMode,
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dFALSE,
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0 /*(dUDDWordPtr) dNULL_PTR*/ );
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kdi_context->clear_queue = dFALSE;
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nt_status = STATUS_SUCCESS;
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break;
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case IOCTL_QIC117_DRIVE_REQUEST:
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IoMarkIrpPending( irp );
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(dVoid) ExInterlockedInsertTailList(
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&kdi_context->list_entry,
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&irp->Tail.Overlay.ListEntry,
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&kdi_context->list_spin_lock );
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(dVoid) KeReleaseSemaphore(
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&kdi_context->request_semaphore,
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(KPRIORITY) 0,
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1,
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dFALSE );
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nt_status = STATUS_PENDING;
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break;
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default:
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kdi_CheckedDump(QIC117DBGP,
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"q117i: invalid device request %08x\n",
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irp_stack_ptr->Parameters.DeviceIoControl.IoControlCode);
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nt_status = STATUS_INVALID_DEVICE_REQUEST;
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}
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return nt_status;
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}
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