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/*
* Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
* This file derived almost in its entirety from gPXE.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file
*
* ACPI data structures
*
*/
#include <stdint.h>
/**
* An ACPI description header
*
* This is the structure common to the start of all ACPI system
* description tables.
*/
MEMDISK_PACKED_PREFIX
struct acpi_description_header {
/** ACPI signature (4 ASCII characters) */
char signature[4];
/** Length of table, in bytes, including header */
uint32_t length;
/** ACPI Specification minor version number */
uint8_t revision;
/** To make sum of entire table == 0 */
uint8_t checksum;
/** OEM identification */
char oem_id[6];
/** OEM table identification */
char oem_table_id[8];
/** OEM revision number */
uint32_t oem_revision;
/** ASL compiler vendor ID */
char asl_compiler_id[4];
/** ASL compiler revision number */
uint32_t asl_compiler_revision;
} MEMDISK_PACKED_POSTFIX;
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