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/* -------------------------------------------
Copyright Zeta Electronics Corporation
File: HPET.hxx
Purpose: HPET builtin.
Revision History:
------------------------------------------- */
#pragma once
#include <NewKit/Defines.hpp>
#include <Modules/ACPI/ACPI.hxx>
namespace NewOS
{
struct PACKED HPETAddressStructure final
{
NewOS::UInt8 AddressSpaceId; // 0 - system memory, 1 - system I/O
NewOS::UInt8 RegisterBitWidth;
NewOS::UInt8 RegisterBitOffset;
NewOS::UInt8 Reserved;
NewOS::UInt64 Address;
};
struct PACKED HPETHeader final : public SDT
{
NewOS::UInt8 HardwareRevId;
NewOS::UInt8 ComparatorCount : 5;
NewOS::UInt8 CounterSize : 1;
NewOS::UInt8 Reserved : 1;
NewOS::UInt8 LegacyReplacement : 1;
NewOS::UInt16 PciVendorId;
HPETAddressStructure Address;
NewOS::UInt8 HpetNumber;
NewOS::UInt16 MinimumTick;
NewOS::UInt8 PageProtection;
};
} // namespace NewOS
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