39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
/**
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* PROJECT: ExectOS
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* COPYRIGHT: See COPYING.md in the top level directory
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* FILE: xtoskrnl/includes/hl/timer.hh
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* DESCRIPTION: ACPI Timer support
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* DEVELOPERS: Aiken Harris <harraiken91@gmail.com>
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*/
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#ifndef __XTOSKRNL_HL_TIMER_HH
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#define __XTOSKRNL_HL_TIMER_HH
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#include <xtos.hh>
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/* Hardware Layer */
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namespace HL
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{
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class Timer
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{
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private:
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STATIC ULONG ProfilingInterval;
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STATIC ULONG TimerFrequency;
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public:
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STATIC XTAPI VOID InitializeApicTimer(VOID);
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STATIC XTAPI ULONG_PTR SetProfileInterval(IN ULONG_PTR Interval);
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STATIC XTAPI VOID StartProfileInterrupt(IN KPROFILE_SOURCE ProfileSource);
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STATIC XTAPI VOID StopProfileInterrupt(IN KPROFILE_SOURCE ProfileSource);
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private:
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STATIC XTAPI XTSTATUS CalibrateApicTimer();
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STATIC XTAPI XTSTATUS GetApicTimerFrequency(OUT PULONG Frequency);
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STATIC XTAPI VOID PitStallExecution(IN ULONG MicroSeconds);
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STATIC XTAPI VOID StallExecution(IN ULONG MicroSeconds);
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};
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}
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#endif /* __XTOSKRNL_HL_TIMER_HH */
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