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166 lines
3.4 KiB
166 lines
3.4 KiB
/*++
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Copyright (c) 1990-1995 Microsoft Corporation
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Module Name:
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timer.c
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Abstract:
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NDIS wrapper functions for full mac drivers isr/timer
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Author:
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Sean Selitrennikoff (SeanSe) 05-Oct-93
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Environment:
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Kernel mode, FSD
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Revision History:
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Jameel Hyder (JameelH) Re-organization 01-Jun-95
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--*/
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#include <precomp.h>
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#pragma hdrstop
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#include <stdarg.h>
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//
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// Define the module number for debug code.
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//
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#define MODULE_NUMBER MODULE_TIMER
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VOID
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NdisInitializeTimer(
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IN OUT PNDIS_TIMER NdisTimer,
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IN PNDIS_TIMER_FUNCTION TimerFunction,
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IN PVOID FunctionContext
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)
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/*++
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Routine Description:
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Sets up an NdisTimer object, initializing the DPC in the timer to
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the function and context.
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Arguments:
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NdisTimer - the timer object.
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TimerFunction - Routine to start.
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FunctionContext - Context of TimerFunction.
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Return Value:
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None.
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--*/
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{
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INITIALIZE_TIMER(&NdisTimer->Timer);
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//
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// Initialize our dpc. If Dpc was previously initialized, this will
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// reinitialize it.
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//
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INITIALIZE_DPC(&NdisTimer->Dpc,
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(PKDEFERRED_ROUTINE)TimerFunction,
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FunctionContext);
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SET_DPC_IMPORTANCE(&NdisTimer->Dpc);
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}
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VOID
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NdisSetTimer(
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IN PNDIS_TIMER NdisTimer,
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IN UINT MillisecondsToDelay
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)
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/*++
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Routine Description:
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Sets up TimerFunction to fire after MillisecondsToDelay.
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Arguments:
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NdisTimer - the timer object.
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MillisecondsToDelay - Amount of time before TimerFunction is started.
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Return Value:
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None.
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--*/
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{
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LARGE_INTEGER FireUpTime;
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if ((NdisTimer->Dpc.DeferredRoutine == ndisMTimerDpc) ||
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(NdisTimer->Dpc.DeferredRoutine == ndisMTimerDpcX))
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{
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NdisMSetTimer((PNDIS_MINIPORT_TIMER)NdisTimer, MillisecondsToDelay);
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}
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else
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{
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FireUpTime.QuadPart = Int32x32To64((LONG)MillisecondsToDelay, -10000);
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//
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// Set the timer
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//
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SET_TIMER(&NdisTimer->Timer, FireUpTime, &NdisTimer->Dpc);
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}
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}
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VOID
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NdisSetTimerEx(
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IN PNDIS_TIMER NdisTimer,
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IN UINT MillisecondsToDelay,
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IN PVOID FunctionContext
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)
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/*++
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Routine Description:
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Sets up TimerFunction to fire after MillisecondsToDelay.
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Arguments:
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NdisTimer - the timer object.
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MillisecondsToDelay - Amount of time before TimerFunction is started.
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FunctionContext - This over-rides the one specified via NdisInitializeTimer
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Return Value:
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None.
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--*/
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{
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LARGE_INTEGER FireUpTime;
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NdisTimer->Dpc.DeferredContext = FunctionContext;
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if ((NdisTimer->Dpc.DeferredRoutine == ndisMTimerDpc) ||
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(NdisTimer->Dpc.DeferredRoutine == ndisMTimerDpcX))
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{
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NdisMSetTimer((PNDIS_MINIPORT_TIMER)NdisTimer, MillisecondsToDelay);
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}
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else
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{
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FireUpTime.QuadPart = Int32x32To64((LONG)MillisecondsToDelay, -10000);
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//
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// Set the timer
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//
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SET_TIMER(&NdisTimer->Timer, FireUpTime, &NdisTimer->Dpc);
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}
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}
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VOID
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NdisCancelTimer(
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IN PNDIS_TIMER Timer,
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OUT PBOOLEAN TimerCancelled
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)
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{
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*TimerCancelled = KeCancelTimer(&Timer->Timer);
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}
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