IOApic Class Reference

I/OxAPIC model. More...

Inheritance diagram for IOApic:

Public Types
enum	{   IOAPIC_BASE = 0xfec00000, OFFSET_INDEX = 0x00, OFFSET_DATA = 0x10, OFFSET_PAR = 0x20,   OFFSET_EOI = 0x40, PINS = 24, EXTINT_PIN = 0, NMI_PIN = 23 }

Public Member Functions
bool	receive (MessageMem &msg)
bool	receive (MessageIrq &msg)
bool	receive (MessageLegacy &msg)
void	discovery ()
	IOApic (Motherboard &mb, unsigned long base, unsigned gsibase)
Public Member Functions inherited from StaticReceiver< IOApic >
	StaticReceiver ()
Public Member Functions inherited from Device
void	debug_dump ()
	Device (const char *debug_name)

Public Attributes
Motherboard &	_mb

Private Member Functions
unsigned	irq_routing (unsigned gsi)
	Route IRQs and return a pin to a GSI number.
unsigned	reverse_routing (unsigned pin)
	Return an GSI from a pin.
void	read_data (unsigned &value)
	Read the data register.
void	write_data (unsigned value)
	Write to the data register.
void	notify (unsigned pin)
bool	pin_assert (unsigned pin, MessageIrq::Type type)
	Assert a pin on this IO/APIC.
void	eoi (unsigned char vector)
	EOI a vector.
void	reset ()
	Reset the registers.

Private Attributes
unsigned	_base
unsigned	_gsibase
unsigned char	_index
unsigned	_id
unsigned	_redir [PINS *2]
bool	_rirr [PINS]
bool	_ds [PINS]
bool	_notify [PINS]

Additional Inherited Members
Static Public Member Functions inherited from DiscoveryHelper< IOApic >
static bool	discover (Device *o, MessageDiscovery &msg)
Static Public Member Functions inherited from StaticReceiver< IOApic >
static bool	receive_static (Device *o, M &msg)
Protected Member Functions inherited from DiscoveryHelper< IOApic >
bool	discovery_write_st (const char *resource, unsigned offset, const void *value, unsigned count)
bool	discovery_write_dw (const char *resource, unsigned offset, unsigned value, unsigned count=4)
	Write a dword or less than it.
bool	discovery_read_dw (const char *resource, unsigned offset, unsigned &value)
	Read a dword.
unsigned	discovery_length (const char *resource, unsigned minlen)
	Return the length of an ACPI table or minlen if it is smaller.

Detailed Description

I/OxAPIC model.

State: testing Features: MSI generation, level+notify, PAR, EOI Difference: no APIC bus Documentation: Intel ICH4.

Member Enumeration Documentation

anonymous enum

Enumerator:

IOAPIC_BASE
OFFSET_INDEX
OFFSET_DATA
OFFSET_PAR
OFFSET_EOI
PINS
EXTINT_PIN
NMI_PIN

Constructor & Destructor Documentation

IOApic::IOApic ( Motherboard &  mb, unsigned long  base, unsigned  gsibase  )

inline

Member Function Documentation

void IOApic::discovery ( )

inline

void IOApic::eoi ( unsigned char  vector )

inlineprivate

EOI a vector.

unsigned IOApic::irq_routing ( unsigned  gsi )

inlineprivate

Route IRQs and return a pin to a GSI number.

void IOApic::notify ( unsigned  pin )

inlineprivate

bool IOApic::pin_assert ( unsigned  pin, MessageIrq::Type  type  )

inlineprivate

Assert a pin on this IO/APIC.

void IOApic::read_data ( unsigned &  value )

inlineprivate

Read the data register.

bool IOApic::receive ( MessageMem &  msg )

inline

bool IOApic::receive ( MessageIrq &  msg )

inline

bool IOApic::receive ( MessageLegacy &  msg )

inline

void IOApic::reset ( )

inlineprivate

Reset the registers.

unsigned IOApic::reverse_routing ( unsigned  pin )

inlineprivate

Return an GSI from a pin.

void IOApic::write_data ( unsigned  value )

inlineprivate

Write to the data register.

We allow to write every bit, as we never actually use the value.

Member Data Documentation

unsigned IOApic::_base

private

bool IOApic::_ds[PINS]

private

unsigned IOApic::_gsibase

private

unsigned IOApic::_id

private

unsigned char IOApic::_index

private

Motherboard& IOApic::_mb

bool IOApic::_notify[PINS]

private

unsigned IOApic::_redir[PINS *2]

private

bool IOApic::_rirr[PINS]

private

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The documentation for this class was generated from the following file:

• vancouver/model/ioapic.cc