77 lines
3.4 KiB
C++
77 lines
3.4 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 AcpiPmPerformanceCounter;
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STATIC TIMER_TYPE ClockType;
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STATIC ULONG FractionalIncrement;
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STATIC PVOID HpetAddress;
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STATIC ULONGLONG HpetFrequency;
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STATIC KSPIN_LOCK PerformanceCounterLock;
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STATIC ULONGLONG PerformanceFrequency;
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STATIC ULONGLONG PitPerformanceCounter;
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STATIC ULONG PitRollover;
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STATIC BOOLEAN ProfilingEnabled;
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STATIC ULONG ProfilingTicks;
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STATIC ULONG RunningFraction;
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STATIC ULONGLONG SystemPerformanceCounter;
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STATIC ULONG TimeIncrement;
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STATIC TIMER_CAPABILITIES TimerCapabilities;
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STATIC ULONG TimerFrequency;
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STATIC TIMER_ROUTINES TimerRoutines;
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STATIC TIMER_TYPE TimerType;
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public:
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STATIC XTAPI VOID InitializeTimer(VOID);
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STATIC XTAPI LARGE_INTEGER QueryPerformanceCounter(OUT PLARGE_INTEGER PerformanceFrequency);
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STATIC XTAPI ULONG SetClockRate(IN ULONG Rate);
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STATIC XTAPI ULONG_PTR SetProfileInterval(IN ULONG_PTR Interval);
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STATIC XTAPI VOID StallExecution(IN ULONG MicroSeconds);
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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 ULONGLONG CalibrateTscCounter(VOID);
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STATIC XTAPI VOID ConfigureTimeIncrement(IN ULONGLONG BaseFrequency,
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IN ULONGLONG HardwareDivider);
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STATIC XTAPI XTSTATUS DetectHpet(VOID);
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STATIC XTCDECL VOID HandleClockInterrupt(IN PKTRAP_FRAME TrapFrame);
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STATIC XTCDECL VOID HandleClockIpiInterrupt(IN PKTRAP_FRAME TrapFrame);
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STATIC XTAPI XTSTATUS InitializeApicTimer(VOID);
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STATIC XTAPI XTSTATUS InitializeHpetTimer(VOID);
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STATIC XTAPI XTSTATUS InitializePitTimer(VOID);
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STATIC XTAPI VOID ProbeTimerType(VOID);
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STATIC XTAPI ULONGLONG QueryPerformanceCounterAcpiPm(VOID);
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STATIC XTAPI ULONGLONG QueryPerformanceCounterHpet(VOID);
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STATIC XTAPI ULONGLONG QueryPerformanceCounterPit(VOID);
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STATIC XTAPI ULONGLONG QueryPerformanceCounterTsc(VOID);
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STATIC XTAPI VOID QueryTimerCapabilities(VOID);
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STATIC XTAPI ULONG SetClockRateApic(ULONG TargetIncrement);
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STATIC XTAPI VOID StallExecutionAcpiPm(IN ULONG MicroSeconds);
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STATIC XTAPI VOID StallExecutionHpet(IN ULONG MicroSeconds);
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STATIC XTAPI VOID StallExecutionPit(IN ULONG MicroSeconds);
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STATIC XTAPI VOID StallExecutionTsc(IN ULONG MicroSeconds);
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STATIC XTAPI BOOLEAN ValidateTimerSupport(IN TIMER_TYPE TimerType,
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IN BOOLEAN IsClock);
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};
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}
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#endif /* __XTOSKRNL_HL_TIMER_HH */
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