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