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// Copyright 2024-2025, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (see LICENSE file)
// Official repository: https://github.com/nekernel-org/nekernel
#ifndef __ACPI__
#define __ACPI__
/**
https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html
*/
#include <NeKit/Config.h>
#define SDT_OBJECT : public Kernel::SDT
namespace Kernel {
class PACKED SDT {
public:
Char Signature[4];
UInt32 Length;
UInt8 Revision;
Char Checksum;
Char OemId[6];
Char OemTableId[8];
UInt32 OemRev;
UInt32 CreatorID;
UInt32 CreatorRevision;
};
class PACKED RSDP : public SDT {
public:
UInt32 RsdtAddress;
UIntPtr XsdtAddress;
UInt8 ExtendedChecksum;
UInt8 Reserved0[3];
};
class PACKED ConfigHeader {
public:
UInt64 BaseAddress;
UInt16 PciSegGroup;
UInt8 StartBus;
UInt8 EndBus;
UInt32 Reserved;
};
enum ACPI_ADDRESS_SPACE_KIND : UInt8 {
eSystemMemory = 0,
eSystemIO = 1,
ePci = 2,
eController = 3,
eSmBus = 4,
eCount = 5,
eInvalid = 0xFF,
};
class PACKED ACPI_ADDRESS final {
public:
UInt8 AddressSpaceId;
UInt8 RegisterBitWidth;
UInt8 RegisterBitOffset;
UInt8 Reserved;
UIntPtr Address;
};
class PACKED RSDT final {
public:
Char Signature[4];
UInt32 Length;
UInt8 Revision;
Char Checksum;
Char OemId[6];
Char OemTableId[8];
UInt32 OemRev;
UInt32 CreatorID;
UInt32 CreatorRevision;
UInt32 AddressArr[1];
};
} // namespace Kernel
#endif // !__ACPI__
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