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/*
*****************************************************************************
*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, Inc.
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* ***************************************************************************
*
*/
/**
* RSDP - ACPI 2.0 table RSDP
*/
typedef struct _RSDP
{
UINT64 Signature; /* RSDP signature "RSD PTR" */
UINT8 Checksum; /* checksum of the first 20 bytes */
UINT8 OEMID[6]; /* OEM ID, "LXBIOS" */
UINT8 Revision; /* 0 for APCI 1.0, 2 for ACPI 2.0 */
UINT32 RsdtAddress; /* physical address of RSDT */
UINT32 Length; /* total length of RSDP (including extended part) */
UINT64 XsdtAddress; /* physical address of XSDT */
UINT8 ExtendedChecksum; /* chechsum of whole table */
UINT8 Reserved[3];
} RSDP;
/**
* DESCRIPTION_HEADER - ACPI common table header
*/
typedef struct _DESCRIPTION_HEADER
{
UINT32 Signature; /* ACPI signature (4 ASCII characters) */
UINT32 Length; /* Length of table, in bytes, including header */
UINT8 Revision; /* ACPI Specification minor version # */
UINT8 Checksum; /* To make sum of entire table == 0 */
UINT8 OEMID[6]; /* OEM identification */
UINT8 OEMTableID[8]; /* OEM table identification */
UINT32 OEMRevision; /* OEM revision number */
UINT32 CreatorID; /* ASL compiler vendor ID */
UINT32 CreatorRevision; /* ASL compiler revision number */
} DESCRIPTION_HEADER;
VOID* ACPI_LocateTable (IN UINT32 Signature);
VOID ACPI_SetTableChecksum (IN VOID* TablePtr);
UINT8 ACPI_GetTableChecksum (IN VOID* TablePtr);
UINT8 GetByteSum (IN VOID* pData, IN UINT32 Length);
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