acpi.c File Reference

ACPI implementation. More...

#include <assert.h>
#include <acpi/acpi.h>
#include <rtems/sysinit.h>

Functions
bool	acpi_tables_initialize (void)
	Initializes the ACPICA Table Manager. Requires dynamic memory.
void	acpi_walk_subtables (ACPI_TABLE_HEADER *table, size_t size_of_header, void(*handler)(ACPI_SUBTABLE_HEADER *))
	Walks through the subtables of an ACPI table.
	RTEMS_SYSINIT_ITEM (initialize_acpi, RTEMS_SYSINIT_DEVICE_DRIVERS, RTEMS_SYSINIT_ORDER_MIDDLE)

Variables
uint64_t	acpi_rsdp_addr = 0

Detailed Description

ACPI implementation.

Function Documentation

acpi_tables_initialize()

bool acpi_tables_initialize

(

void

)

Initializes the ACPICA Table Manager. Requires dynamic memory.

The ACPICA Table Manager is independent of the rest of the ACPICA subsystem and only requires dynamic memory to be initialized (unless a statically allocated array for the tables is provided). Since access to ACPI tables may be required before the entire ACPICA subsystem can be initialized this routine can be used earlier in the system intialization.

Returns

true if successful.

acpi_walk_subtables()

void acpi_walk_subtables	(	ACPI_TABLE_HEADER *	table,
		size_t	size_of_header,
		void(*)(ACPI_SUBTABLE_HEADER *)	handler
	)

Walks through the subtables of an ACPI table.

Parameters

table	Pointer to the table.
size_of_header	Size of the table header (used to offset into first subtable).
handler	Handler that is called for each subtable found.