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/*;********************************************************************************
;
; Copyright (c) 2011, Advanced Micro Devices, Inc.
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are met:
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the distribution.
; * Neither the name of Advanced Micro Devices, Inc. nor the names of
; its contributors may be used to endorse or promote products derived
; from this software without specific prior written permission.
;
; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
; (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;
;*********************************************************************************/
/**
* RSDP - ACPI 2.0 table RSDP
*/
typedef struct _RSDP {
unsigned long long Signature; ///< RSDP signature "RSD PTR"
unsigned char Checksum; ///< checksum of the first 20 bytes
unsigned char OEMID[6]; ///< OEM ID, "LXBIOS"
unsigned char Revision; ///< 0 for APCI 1.0, 2 for ACPI 2.0
unsigned int RsdtAddress; ///< physical address of RSDT
unsigned int Length; ///< total length of RSDP (including extended part)
unsigned long long XsdtAddress; ///< physical address of XSDT
unsigned char ExtendedChecksum; ///< chechsum of whole table
unsigned char Reserved[3]; ///< Reserved
} RSDP;
/// DESCRIPTION_HEADER - ACPI common table header
typedef struct _DESCRIPTION_HEADER {
unsigned int Signature; ///< ACPI signature (4 ASCII characters)
unsigned int Length; ///< Length of table, in bytes, including header
unsigned char Revision; ///< ACPI Specification minor version #
unsigned char Checksum; ///< To make sum of entire table == 0
unsigned char OEMID[6]; ///< OEM identification
unsigned char OEMTableID[8]; ///< OEM table identification
unsigned int OEMRevision; ///< OEM revision number
unsigned int CreatorID; ///< ASL compiler vendor ID
unsigned int CreatorRevision; ///< ASL compiler revision number
} DESCRIPTION_HEADER;
void* ACPI_LocateTable (IN unsigned int Signature);
void ACPI_SetTableChecksum (IN void* TablePtr);
unsigned char ACPI_GetTableChecksum (IN void* TablePtr);
unsigned char GetByteSum (IN void* pData, IN unsigned int Length);
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