Dokumentation

#include "ioapic.h"
#include "machine/apic.h"
#include "machine/core.h"
#include "debug/assert.h"

Include dependency graph for ioapic.cc:

Namespaces
namespace	IOAPIC
	Abstraction of the I/O APIC that is used for management of external interrupts.

Functions
static Register	IOAPIC::read (Index reg)

static void	IOAPIC::write (Index reg, Register value)

static RedirectionTableEntry	IOAPIC::getRedirectionTableEntry (uint8_t slot)

static void	IOAPIC::setRedirectionTableEntry (uint8_t slot, RedirectionTableEntry rt)

static void	IOAPIC::setID (uint8_t id)

void	IOAPIC::init ()
	Initializes the I/O APIC.

void	IOAPIC::config (uint8_t slot, Core::Interrupt::Vector vector, TriggerMode trigger_mode=TriggerMode::EDGE, Polarity polarity=Polarity::HIGH)
	Creates a mapping between an interrupt vector and an external interrupt.

void	IOAPIC::allow (uint8_t slot)
	Enables the redirection of particular external interrupts to the CPU(s).

void	IOAPIC::forbid (uint8_t slot)
	Selectively masks external interrupts by slot number.

bool	IOAPIC::status (uint8_t slot)
	Check whether an external interrupt source is masked.

Constants
volatile Index *	IOAPIC::IOREGSEL_REG = reinterpret_cast<volatile Index*>(0xfec00000)
	IOAPIC registers memory mapped into the CPU's virtual address space.

volatile Register *	IOAPIC::IOWIN_REG = reinterpret_cast<volatile Register*>(0xfec00010)
	IOAPIC registers memory mapped into the CPU's virtual address space.

const Index	IOAPIC::IOAPICID_IDX = 0x00

const Index	IOAPIC::IOREDTBL_IDX = 0x10

const uint8_t	IOAPIC::slot_max = 24

Namespaces