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#pragma once
#include "main/interrupt.h"
#include "types.h"
typedef enum
{
DESTINATION_MODE_FIXED = 0,
DESTINATION_MODE_LOWEST_PRIORITY = 1,
DESTINATION_MODE_SMI = 2,
DESTINATION_MODE_NMI = 4,
DESTINATION_MODE_INIT = 5,
DESTINATION_MODE_SIPI = 6
} ipi_destination_mode;
#define MAX_LAPICS 8
/* Initializes the APIC using data from the ACPI tables.
* ACPI handlers must be initialized before calling this
* function. */
void apic_init();
/* Returns the APIC ID of the current processor */
long apic_current_id();
/* Returns the largest known APIC ID */
long apic_max_id();
/* Maps the given IRQ to the given interrupt number. */
void apic_setredir(uint32_t irq, uint8_t intr);
void apic_enable();
// timer interrupts arrive at a rate of (freq / 16) interrupts per millisecond
// (with an )
/* Starts the APIC timer */
void apic_enable_periodic_timer(uint32_t freq);
/* Stops the APIC timer */
void apic_disable_periodic_timer();
/* Sets the interrupt to raise when a spurious
* interrupt occurs. */
void apic_setspur(uint8_t intr);
/* Sets the interrupt priority level. This function should
* be accessed via wrappers in the interrupt subsystem. */
void apic_setipl(uint8_t ipl);
/* Gets the interrupt priority level. This function should
* be accessed via wrappers in the interrupt subsystem. */
uint8_t apic_getipl();
long apic_initialized();
/* Writes to the APIC's memory mapped end-of-interrupt
* register to indicate that the handling of an interrupt
* originating from the APIC has been finished. This function
* should only be called from the interrupt subsystem. */
void apic_eoi();
void apic_start_processor(uint8_t target, uint8_t execution_page);
void apic_send_ipi(uint8_t target, ipi_destination_mode destination_mode,
uint8_t vector);
void apic_broadcast_ipi(ipi_destination_mode mode, uint8_t vector,
long include_self);
/**
* Wait for the last IPI sent to be acknowledged by the target processor.
*/
void apic_wait_ipi();
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