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