windows-nt/Source/XPSP1/NT/base/hals/halacpi/xxtimer.h

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 2000 Microsoft Corporation
Module Name:
xxtimer.h
Abstract:
This module contains definitions used by the HAL's timer-related
functions
Author:
Eric Nelson (enelson) July 7, 2000
Revision History:
--*/
#ifndef __XXTIMER_H__
#define __XXTIMER_H__
typedef
ULONG
(*PSTE_ROUTINE)( // (S)et (T)ime (I)ncrement
IN ULONG DesiredIncrement
);
typedef
VOID
(*PSEP_ROUTINE)( // (S)tall (E)xecution (P)rocessor
IN ULONG Microseconds
);
typedef
VOID
(*PCPC_ROUTINE)( // (C)alibrate (P)erformance (C)ounter
IN LONG volatile *Number,
IN ULONGLONG NewCount
);
typedef
LARGE_INTEGER
(*PQPC_ROUTINE)( // (Q)uery (P)erformance (C)ounter
OUT PLARGE_INTEGER PerformanceFrequency OPTIONAL
);
typedef struct _TIMER_FUNCTIONS {
PSEP_ROUTINE StallExecProc;
PCPC_ROUTINE CalibratePerfCount;
PQPC_ROUTINE QueryPerfCount;
PSTE_ROUTINE SetTimeIncrement;
} TIMER_FUNCTIONS, *PTIMER_FUNCTIONS;
VOID
HalpSetTimerFunctions(
IN PTIMER_FUNCTIONS TimerFunctions
);
#endif // __XXTIMER_H__