ACPI.h

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/* ========================================
 
  Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license.
 
======================================== */
 
#ifndef __ACPI__
#define __ACPI__

 
#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__