HPET::HPET_ACPI Struct Reference

The ACPI 2.0 HPET Description Table (HPET) More...

Inheritance diagram for HPET::HPET_ACPI:

Collaboration diagram for HPET::HPET_ACPI:

Public Attributes
uint32_t	revision_id: 8
	Event Timer Block ID: Revision (must be > 0)
uint32_t	last_comparator: 5
	Event Timer Block ID: Index of the last comparator.
CounterSize	counter_size: 1
	Event Timer Block ID: 32- or 64bit comparator size.
uint32_t	__pad0__: 1
uint32_t	legacy_route_capable: 1
	Event Timer Block ID: Legacy replacement mapping support.
uint32_t	vendor_id: 16
	Event Timer Block ID: Similar to PCIs vendor id.
ACPI::Address	address
	Base address.
uint8_t	hpet_number
	HPET sequence number.
uint16_t	min_periodic_clock_tick
	Main Counter Minimum Clock_tick in Periodic Mode.
uint8_t	page_protection_guarantee: 4
	Page Protection.
uint8_t	oem_attributes: 4
	OEM attributes.
Public Attributes inherited from ACPI::SDTH
uint32_t	signature
uint32_t	length
uint8_t	revision
uint8_t	checksum
char	oemid [6]
char	oem_table_id [8]
uint32_t	oem_revision
uint32_t	creator_id
uint32_t	creator_revision

Additional Inherited Members
Public Member Functions inherited from ACPI::SDTH
void *	end ()

Detailed Description

The ACPI 2.0 HPET Description Table (HPET)

This ACPI table contains the base address of the HPET. The table itself can be found using ACPI::get

HPET_ACPI *table = reinterpret_cast<HPET_ACPI *>(ACPI::get('H', 'P', 'E', 'T'));

See also

IA-PC HPET - 3.2.4 The ACPI 2.0 HPET Description Table (HPET)

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

• machine/hpet.cc