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Architecture/amd64/acpi.hpp
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282
Architecture/amd64/acpi.hpp
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#ifndef __FENNIX_KERNEL_ACPI_H__
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#define __FENNIX_KERNEL_ACPI_H__
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#include <types.h>
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#include <boot/binfo.h>
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#include <interrupts.hpp>
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#include <vector.hpp>
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#include <cpu.hpp>
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namespace ACPI
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{
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class ACPI
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{
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public:
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struct ACPIHeader
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{
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unsigned char Signature[4];
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uint32_t Length;
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uint8_t Revision;
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uint8_t Checksum;
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uint8_t OEMID[6];
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uint8_t OEMTableID[8];
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uint32_t OEMRevision;
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uint32_t CreatorID;
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uint32_t CreatorRevision;
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} __attribute__((packed));
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struct GenericAddressStructure
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{
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uint8_t AddressSpace;
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uint8_t BitWidth;
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uint8_t BitOffset;
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uint8_t AccessSize;
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uint64_t Address;
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} __attribute__((packed));
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struct MCFGHeader
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{
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struct ACPIHeader Header;
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uint64_t Reserved;
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} __attribute__((packed));
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struct HPETHeader
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{
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ACPIHeader header;
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uint8_t hardware_rev_id;
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uint8_t comparator_count : 5;
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uint8_t counter_size : 1;
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uint8_t reserved : 1;
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uint8_t legacy_replacement : 1;
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uint16_t pci_vendor_id;
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struct GenericAddressStructure address;
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uint8_t hpet_number;
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uint16_t minimum_tick;
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uint8_t page_protection;
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} __attribute__((packed));
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struct FADTHeader
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{
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ACPIHeader header;
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uint32_t FirmwareCtrl;
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uint32_t Dsdt;
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uint8_t Reserved;
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uint8_t PreferredPowerManagementProfile;
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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 Reserved2;
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uint32_t Flags;
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struct GenericAddressStructure ResetReg;
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uint8_t ResetValue;
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uint8_t Reserved3[3];
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uint64_t X_FirmwareControl;
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uint64_t X_Dsdt;
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struct GenericAddressStructure X_PM1aEventBlock;
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struct GenericAddressStructure X_PM1bEventBlock;
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struct GenericAddressStructure X_PM1aControlBlock;
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struct GenericAddressStructure X_PM1bControlBlock;
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struct GenericAddressStructure X_PM2ControlBlock;
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struct GenericAddressStructure X_PMTimerBlock;
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struct GenericAddressStructure X_GPE0Block;
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struct GenericAddressStructure X_GPE1Block;
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} __attribute__((packed));
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struct BGRTHeader
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{
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ACPIHeader Header;
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uint16_t Version;
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uint8_t Status;
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uint8_t ImageType;
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uint64_t ImageAddress;
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uint32_t ImageOffsetX;
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uint32_t ImageOffsetY;
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};
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struct SRATHeader
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{
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ACPIHeader Header;
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uint32_t TableRevision; // Must be value 1
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uint64_t Reserved; // Reserved, must be zero
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};
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struct TPM2Header
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{
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ACPIHeader Header;
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uint32_t Flags;
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uint64_t ControlAddress;
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uint32_t StartMethod;
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};
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struct TCPAHeader
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{
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ACPIHeader Header;
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uint16_t Reserved;
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uint32_t MaxLogLength;
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uint64_t LogAddress;
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};
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struct WAETHeader
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{
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ACPIHeader Header;
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uint32_t Flags;
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};
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struct HESTHeader
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{
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ACPIHeader Header;
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uint32_t ErrorSourceCount;
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};
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struct MADTHeader
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{
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ACPIHeader Header;
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uint32_t LocalControllerAddress;
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uint32_t Flags;
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char Entries[];
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} __attribute__((packed));
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ACPIHeader *XSDT = nullptr;
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MCFGHeader *MCFG = nullptr;
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HPETHeader *HPET = nullptr;
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FADTHeader *FADT = nullptr;
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BGRTHeader *BGRT = nullptr;
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SRATHeader *SRAT = nullptr;
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TPM2Header *TPM2 = nullptr;
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TCPAHeader *TCPA = nullptr;
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WAETHeader *WAET = nullptr;
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MADTHeader *MADT = nullptr;
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HESTHeader *HEST = nullptr;
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bool XSDTSupported = false;
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void *FindTable(ACPIHeader *ACPIHeader, char *Signature);
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void SearchTables(ACPIHeader *Header);
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ACPI(BootInfo *Info);
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~ACPI();
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};
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class MADT
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{
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public:
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struct APICHeader
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{
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uint8_t Type;
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uint8_t Length;
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} __attribute__((packed));
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struct MADTIOApic
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{
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struct APICHeader Header;
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uint8_t APICID;
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uint8_t reserved;
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uint32_t addr;
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uint32_t gsib;
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} __attribute__((packed));
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struct MADTIso
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{
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struct APICHeader Header;
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uint8_t BuSSource;
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uint8_t IRQSource;
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uint32_t GSI;
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uint16_t Flags;
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} __attribute__((packed));
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struct MADTNmi
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{
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struct APICHeader Header;
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uint8_t processor;
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uint16_t flags;
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uint8_t lint;
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} __attribute__((packed));
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struct LocalAPIC
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{
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struct APICHeader Header;
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uint8_t ACPIProcessorId;
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uint8_t APICId;
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uint32_t Flags;
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} __attribute__((packed));
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struct LAPIC
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{
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uint8_t id;
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uintptr_t PhysicalAddress;
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void *VirtualAddress;
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};
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Vector<MADTIOApic *> ioapic;
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Vector<MADTIso *> iso;
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Vector<MADTNmi *> nmi;
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Vector<LocalAPIC *> lapic;
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struct LAPIC *LAPICAddr;
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uint8_t CPUCores;
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MADT(ACPI::MADTHeader *madt);
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~MADT();
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};
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class DSDT
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{
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private:
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uint32_t SMI_CMD = 0;
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uint8_t ACPI_ENABLE = 0;
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uint8_t ACPI_DISABLE = 0;
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uint32_t PM1a_CNT = 0;
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uint32_t PM1b_CNT = 0;
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uint16_t SLP_TYPa = 0;
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uint16_t SLP_TYPb = 0;
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uint16_t SLP_EN = 0;
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uint16_t SCI_EN = 0;
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uint8_t PM1_CNT_LEN = 0;
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ACPI *acpi;
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public:
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bool ACPIShutdownSupported = false;
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void SCIHandler(CPU::x64::TrapFrame *regs);
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void RegisterSCIEvents();
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void SetSCIevent(uint16_t value);
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uint16_t GetSCIevent();
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void Reboot();
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void Shutdown();
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void InitSCI();
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DSDT(ACPI *acpi);
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~DSDT();
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};
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}
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#endif // !__FENNIX_KERNEL_ACPI_H__
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