1 /*;********************************************************************************
3 ; Copyright (c) 2011, Advanced Micro Devices, Inc.
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7 ; modification, are permitted provided that the following conditions are met:
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15 ; from this software without specific prior written permission.
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28 ;*********************************************************************************/
31 * RSDP - ACPI 2.0 table RSDP
33 typedef struct _RSDP {
34 unsigned long long Signature; ///< RSDP signature "RSD PTR"
35 unsigned char Checksum; ///< checksum of the first 20 bytes
36 unsigned char OEMID[6]; ///< OEM ID, "LXBIOS"
37 unsigned char Revision; ///< 0 for APCI 1.0, 2 for ACPI 2.0
38 unsigned int RsdtAddress; ///< physical address of RSDT
39 unsigned int Length; ///< total length of RSDP (including extended part)
40 unsigned long long XsdtAddress; ///< physical address of XSDT
41 unsigned char ExtendedChecksum; ///< chechsum of whole table
42 unsigned char Reserved[3]; ///< Reserved
46 /// DESCRIPTION_HEADER - ACPI common table header
47 typedef struct _DESCRIPTION_HEADER {
48 unsigned int Signature; ///< ACPI signature (4 ASCII characters)
49 unsigned int Length; ///< Length of table, in bytes, including header
50 unsigned char Revision; ///< ACPI Specification minor version #
51 unsigned char Checksum; ///< To make sum of entire table == 0
52 unsigned char OEMID[6]; ///< OEM identification
53 unsigned char OEMTableID[8]; ///< OEM table identification
54 unsigned int OEMRevision; ///< OEM revision number
55 unsigned int CreatorID; ///< ASL compiler vendor ID
56 unsigned int CreatorRevision; ///< ASL compiler revision number
59 void* ACPI_LocateTable (IN unsigned int Signature);
60 void ACPI_SetTableChecksum (IN void* TablePtr);
61 unsigned char ACPI_GetTableChecksum (IN void* TablePtr);
62 unsigned char GetByteSum (IN void* pData, IN unsigned int Length);