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/** @file
This file contains some basic ACPI definitions that are consumed by drivers
that do not care about ACPI versions.
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _ACPI_H_
#define _ACPI_H_
//
// Common table header, this prefaces all ACPI tables, including FACS, but
// excluding the RSD PTR structure
//
typedef struct {
UINT32 Signature;
UINT32 Length;
} EFI_ACPI_COMMON_HEADER;
//
// Common ACPI description table header. This structure prefaces most ACPI tables.
//
#pragma pack(1)
typedef struct {
UINT32 Signature;
UINT32 Length;
UINT8 Revision;
UINT8 Checksum;
UINT8 OemId[6];
UINT64 OemTableId;
UINT32 OemRevision;
UINT32 CreatorId;
UINT32 CreatorRevision;
} EFI_ACPI_DESCRIPTION_HEADER;
#pragma pack()
//
// Define for Pci Host Bridge Resource Allocation
//
#define ACPI_ADDRESS_SPACE_DESCRIPTOR 0x8A
#define ACPI_END_TAG_DESCRIPTOR 0x79
#define ACPI_ADDRESS_SPACE_TYPE_MEM 0x00
#define ACPI_ADDRESS_SPACE_TYPE_IO 0x01
#define ACPI_ADDRESS_SPACE_TYPE_BUS 0x02
//
// Power Management Timer frequency is fixed at 3.579545MHz
//
#define ACPI_TIMER_FREQUENCY 3579545
//
// Make sure structures match spec
//
#pragma pack(1)
typedef struct {
UINT8 Desc;
UINT16 Len;
UINT8 ResType;
UINT8 GenFlag;
UINT8 SpecificFlag;
UINT64 AddrSpaceGranularity;
UINT64 AddrRangeMin;
UINT64 AddrRangeMax;
UINT64 AddrTranslationOffset;
UINT64 AddrLen;
} EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR;
typedef struct {
UINT8 Desc;
UINT8 Checksum;
} EFI_ACPI_END_TAG_DESCRIPTOR;
//
// General use definitions
//
#define EFI_ACPI_RESERVED_BYTE 0x00
#define EFI_ACPI_RESERVED_WORD 0x0000
#define EFI_ACPI_RESERVED_DWORD 0x00000000
#define EFI_ACPI_RESERVED_QWORD 0x0000000000000000
//
// Resource Type Specific Flags
// Ref ACPI specification 6.4.3.5.5
//
// Bit [0] : Write Status, _RW
//
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_READ_WRITE (1 << 0)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_READ_ONLY (0 << 0)
//
// Bit [2:1] : Memory Attributes, _MEM
//
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_NON_CACHEABLE (0 << 1)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE (1 << 1)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_WRITE_COMBINING (2 << 1)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE (3 << 1)
//
// Bit [4:3] : Memory Attributes, _MTP
//
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_MEMORY (0 << 3)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_RESERVED (1 << 3)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_ACPI (2 << 3)
#define EFI_APCI_MEMORY_RESOURCE_SPECIFIC_FLAG_ADDRESS_RANGE_NVS (3 << 3)
//
// Bit [5] : Memory to I/O Translation, _TTP
//
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_TYPE_TRANSLATION (1 << 5)
#define EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_TYPE_STATIC (0 << 5)
#pragma pack()
#endif
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