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https://github.com/Fennix-Project/Kernel.git
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77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
#ifndef __FENNIX_KERNEL_APIC_H__
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#define __FENNIX_KERNEL_APIC_H__
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#include <types.h>
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#include <interrupts.hpp>
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#include <cpu.hpp>
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namespace APIC
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{
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class APIC
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{
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private:
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bool x2APICSupported = false;
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public:
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enum APICRegisters
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{
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APIC_ONESHOT = (0 << 17), // LVT One-Shot Mode (for Timer)
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APIC_PERIODIC = (1 << 17), // LVT Periodic Mode (for Timer)
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APIC_TSC_DEADLINE = (2 << 17), // LVT Timer/sDeadline (for Timer)
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// source from: https://github.com/pdoane/osdev/blob/master/intr/local_apic.c
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APIC_ID = 0x20, // Local APIC ID
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APIC_VER = 0x30, // Local APIC Version
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APIC_TPR = 0x80, // Task Priority
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APIC_APR = 0x90, // Arbitration Priority
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APIC_PPR = 0xa0, // Processor Priority
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APIC_EOI = 0xb0, // EOI
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APIC_RRD = 0xc0, // Remote Read
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APIC_LDR = 0xd0, // Logical Destination
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APIC_DFR = 0xe0, // Destination Format
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APIC_SVR = 0xf0, // Spurious Interrupt Vector
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APIC_ISR = 0x100, // In-Service (8 registers)
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APIC_TMR = 0x180, // Trigger Mode (8 registers)
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APIC_IRR = 0x200, // Interrupt Request (8 registers)
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APIC_ESR = 0x280, // Error Status
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APIC_ICRLO = 0x300, // Interrupt Command
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APIC_ICRHI = 0x310, // Interrupt Command [63:32]
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APIC_TIMER = 0x320, // LVT Timer
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APIC_THERMAL = 0x330, // LVT Thermal Sensor
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APIC_PERF = 0x340, // LVT Performance Counter
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APIC_LINT0 = 0x350, // LVT LINT0
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APIC_LINT1 = 0x360, // LVT LINT1
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APIC_ERROR = 0x370, // LVT Error
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APIC_TICR = 0x380, // Initial Count (for Timer)
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APIC_TCCR = 0x390, // Current Count (for Timer)
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APIC_TDCR = 0x3e0, // Divide Configuration (for Timer)
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};
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uint32_t Read(uint32_t Register);
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void Write(uint32_t Register, uint32_t Value);
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void IOWrite(uint64_t Base, uint32_t Register, uint32_t Value);
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uint32_t IORead(uint64_t Base, uint32_t Register);
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void EOI();
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void RedirectIRQs(int CPU = 0);
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void IPI(uint8_t CPU, uint32_t InterruptNumber);
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void OneShot(uint32_t Vector, uint64_t Miliseconds);
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uint32_t IOGetMaxRedirect(uint32_t APICID);
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void RawRedirectIRQ(uint8_t Vector, uint32_t GSI, uint16_t Flags, int CPU, int Status);
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void RedirectIRQ(int CPU, uint8_t IRQ, int Status);
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APIC(int Core);
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~APIC();
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};
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class Timer : public Interrupts::Handler
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{
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private:
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void OnInterruptReceived(CPU::x64::TrapFrame *Frame);
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public:
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Timer(APIC *apic);
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~Timer();
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};
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}
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#endif // !__FENNIX_KERNEL_APIC_H__
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