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40 lines
736 B
C
Executable File
40 lines
736 B
C
Executable File
/** @file
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Copyright (C) 2016, The HermitCrabs Lab. All rights reserved.<BR>
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Copyright (C) 2021, Mike Beaton. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-3-Clause
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**/
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#ifndef OC_TIMER_LIB_H
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#define OC_TIMER_LIB_H
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#include <Library/TimerLib.h>
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//
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// Minimal CPU delay in microseconds (us, 10^-6) for use with MicroSecondDelay e.g. in polling loops
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//
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#define OC_MINIMAL_CPU_DELAY 10
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/**
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Calculate the TSC frequency
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@retval The calculated TSC frequency.
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**/
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UINT64
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RecalculateTSC (
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VOID
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);
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/**
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Return cached PerformanceCounterFrequency value. For instrumentation purposes only.
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@retval The timer frequency in use.
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**/
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UINT64
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EFIAPI
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GetTscFrequency (
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VOID
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);
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#endif // OC_TIMER_LIB_H
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