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64 lines
972 B
64 lines
972 B
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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xxclock.c
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Abstract:
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This module implements the function necesssary to change the clock
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interrupt rate.
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Author:
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David N. Cutler (davec) 7-Feb-1994
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Environment:
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Kernel mode only.
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Revision History:
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--*/
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#include "halp.h"
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//
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// Define global data used to communicate new clock rates to the clock
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// interrupt service routine.
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//
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ULONG HalpCurrentTimeIncrement;
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ULONG HalpNextIntervalCount;
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ULONG HalpNextTimeIncrement;
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ULONG HalpNewTimeIncrement;
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ULONG
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HalSetTimeIncrement (
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IN ULONG DesiredIncrement
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)
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/*++
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Routine Description:
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This function is called to set the clock interrupt rate to the frequency
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required by the specified time increment value.
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Arguments:
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DesiredIncrement - Supplies desired number of 100ns units between clock
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interrupts.
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Return Value:
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The actual time increment in 100ns units.
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--*/
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{
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return TIME_INCREMENT;
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}
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