85 lines
2.6 KiB
C++
85 lines
2.6 KiB
C++
/*
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* FADT.hpp
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* Fixed ACPI Description Table parsing
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* Copyright (c) 2026 Daniel Hammer
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*/
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#pragma once
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#include <cstdint>
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#include <ACPI/ACPI.hpp>
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namespace Hal {
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namespace FADT {
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struct Table {
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ACPI::CommonSDTHeader Header;
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uint32_t FirmwareCtrl;
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uint32_t Dsdt;
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uint8_t Reserved0;
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uint8_t PreferredPMProfile;
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uint16_t SCI_Interrupt;
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uint32_t SMI_CommandPort;
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uint8_t AcpiEnable;
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uint8_t AcpiDisable;
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uint8_t S4BIOS_REQ;
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uint8_t PSTATE_Control;
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uint32_t PM1aEventBlock;
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uint32_t PM1bEventBlock;
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uint32_t PM1aControlBlock;
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uint32_t PM1bControlBlock;
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uint32_t PM2ControlBlock;
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uint32_t PMTimerBlock;
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uint32_t GPE0Block;
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uint32_t GPE1Block;
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uint8_t PM1EventLength;
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uint8_t PM1ControlLength;
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uint8_t PM2ControlLength;
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uint8_t PMTimerLength;
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uint8_t GPE0Length;
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uint8_t GPE1Length;
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uint8_t GPE1Base;
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uint8_t CStateControl;
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uint16_t WorstC2Latency;
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uint16_t WorstC3Latency;
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uint16_t FlushSize;
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uint16_t FlushStride;
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uint8_t DutyOffset;
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uint8_t DutyWidth;
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uint8_t DayAlarm;
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uint8_t MonthAlarm;
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uint8_t Century;
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uint16_t BootArchitectureFlags;
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uint8_t Reserved1;
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uint32_t Flags;
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// Generic Address Structure for RESET_REG (12 bytes)
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uint8_t ResetReg[12];
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uint8_t ResetValue;
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uint16_t ArmBootArchFlags;
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uint8_t FADTMinorVersion;
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// Extended fields (ACPI 2.0+)
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uint64_t X_FirmwareControl;
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uint64_t X_Dsdt;
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uint8_t X_PM1aEventBlock[12];
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uint8_t X_PM1bEventBlock[12];
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uint8_t X_PM1aControlBlock[12];
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uint8_t X_PM1bControlBlock[12];
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uint8_t X_PM2ControlBlock[12];
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uint8_t X_PMTimerBlock[12];
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uint8_t X_GPE0Block[12];
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uint8_t X_GPE1Block[12];
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} __attribute__((packed));
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struct ParsedFADT {
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uint64_t DsdtAddress;
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uint32_t PM1aControlBlock;
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uint32_t PM1bControlBlock;
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uint32_t SMI_CommandPort;
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uint8_t AcpiEnable;
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uint8_t AcpiDisable;
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bool Valid;
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};
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bool Parse(ACPI::CommonSDTHeader* xsdt, ParsedFADT& result);
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};
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};
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