alexvoste
113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
#ifndef APIC_H
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#define APIC_H
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#include <stdint.h>
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#include <stdbool.h>
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#include "../acpi/acpi.h"
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#define LAPIC_ID 0x0020
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#define LAPIC_VERSION 0x0030
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#define LAPIC_TPR 0x0080
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#define LAPIC_EOI 0x00B0
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#define LAPIC_SIVR 0x00F0
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#define LAPIC_ISR0 0x0100
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#define LAPIC_TIMER 0x0320
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#define LAPIC_THERMAL 0x0330
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#define LAPIC_PERFORMANCE 0x0340
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#define LAPIC_LINT0 0x0350
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#define LAPIC_LINT1 0x0360
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#define LAPIC_ERROR 0x0370
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#define LAPIC_TIMER_ICR 0x0380
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#define LAPIC_TIMER_CCR 0x0390
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#define LAPIC_TIMER_DCR 0x03E0
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#define LAPIC_ENABLE (1 << 8)
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#define LAPIC_SPURIOUS_VECTOR 0xFF
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#define LAPIC_TIMER_MASKED (1 << 16)
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#define LAPIC_TIMER_PERIODIC (1 << 17)
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#define LAPIC_TIMER_DIV1 0x0
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#define LAPIC_TIMER_DIV2 0x1
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#define LAPIC_TIMER_DIV4 0x2
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#define LAPIC_TIMER_DIV8 0x3
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#define LAPIC_TIMER_DIV16 0x4
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#define LAPIC_TIMER_DIV32 0x5
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#define LAPIC_TIMER_DIV64 0x6
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#define LAPIC_TIMER_DIV128 0x7
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#define IOAPIC_ID 0x00
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#define IOAPIC_VERSION 0x01
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#define IOAPIC_ARB 0x02
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#define IOAPIC_REDIR_START 0x10
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#define IOAPIC_INT_MASKED (1 << 16)
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#define IOAPIC_TRIGGER_LEVEL (1 << 15)
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#define IOAPIC_POLARITY_LOW (1 << 13)
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#define IOAPIC_DELIVERY_FIXED 0x0
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#define IOAPIC_DELIVERY_NMI 0x4
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#define HPET_CAPABILITIES 0x000
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#define HPET_PERIOD 0x004
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#define HPET_CONFIG 0x010
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#define HPET_INTERRUPT_STATUS 0x020
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#define HPET_MAIN_COUNTER 0x0F0
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#define HPET_TIMER0_CONFIG 0x100
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#define HPET_TIMER0_COMPARATOR 0x108
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#define HPET_ENABLE_CNF (1ULL << 0)
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#define HPET_LEGACY_CNF (1ULL << 1)
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#define HPET_TN_INT_ENABLE_CNF (1 << 2)
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#define HPET_TN_INT_TYPE_CNF (1 << 3)
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#define HPET_TN_PERIODIC_CNF (1 << 4)
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#define HPET_TN_32BIT_CNF (1 << 8)
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#define HPET_TN_FSB_ENABLE_CNF (1 << 14)
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#define HPET_TN_FSB_INT_DEL_CNF (1 << 15)
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void apic_init(void);
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bool apic_is_available(void);
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bool hpet_is_available(void);
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bool hpet_init(void);
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void lapic_write(uint32_t reg, uint32_t value);
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uint32_t lapic_read(uint32_t reg);
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void lapic_eoi(void);
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void lapic_enable(void);
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uint32_t lapic_get_id(void);
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void lapic_timer_init(uint32_t vector, uint32_t count, bool periodic, uint8_t divisor);
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void lapic_timer_stop(void);
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uint32_t lapic_timer_get_current(void);
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void lapic_send_ipi(uint32_t target_lapic_id, uint8_t vector);
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void lapic_send_ipi_to_all_but_self(uint8_t vector);
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void lapic_send_nmi_to_all_but_self(void);
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void ioapic_write(uintptr_t base, uint32_t reg, uint32_t value);
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uint32_t ioapic_read(uintptr_t base, uint32_t reg);
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uint32_t ioapic_get_max_redirects(uintptr_t base);
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void ioapic_redirect_irq(uint8_t irq, uint8_t vector, uint32_t flags);
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void ioapic_mask_irq(uint8_t irq);
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void ioapic_unmask_irq(uint8_t irq);
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void apic_setup_irq(uint8_t irq, uint8_t vector, bool mask, uint32_t flags);
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void apic_timer_calibrate(void);
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uint64_t hpet_read_counter(void);
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uint64_t hpet_get_frequency(void);
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uint64_t hpet_elapsed_ns(void);
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void hpet_sleep_ns(uint64_t nanoseconds);
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void hpet_sleep_us(uint64_t microseconds);
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void hpet_sleep_ms(uint64_t milliseconds);
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extern uintptr_t lapic_base;
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extern uintptr_t ioapic_base;
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extern uintptr_t hpet_base;
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extern uint32_t hpet_period;
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extern uint64_t g_hpet_boot_counter;
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void ipi_reschedule_all(void);
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void ipi_reschedule_cpu(uint32_t lapic_id);
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void ipi_reschedule_single(uint32_t target_lapic_id);
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void ipi_tlb_shootdown_broadcast(const uintptr_t* addrs, size_t count);
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void ipi_tlb_shootdown_single(uint32_t target_lapic_id, uintptr_t addr);
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#endif |