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alexvoste
@@ -0,0 +1,199 @@
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#ifndef ACPI_H
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#define ACPI_H
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include <limine.h>
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typedef struct {
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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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char oem_id[6];
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char oem_table_id[8];
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uint32_t oem_revision;
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uint32_t creator_id;
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uint32_t creator_revision;
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} __attribute__((packed)) acpi_sdt_header_t;
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typedef struct {
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char signature[8];
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uint8_t checksum;
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char oem_id[6];
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uint8_t revision;
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uint32_t rsdt_address;
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} __attribute__((packed)) acpi_rsdp_t;
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typedef struct {
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acpi_rsdp_t rsdp_v1;
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uint32_t length;
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uint64_t xsdt_address;
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uint8_t extended_checksum;
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uint8_t reserved[3];
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} __attribute__((packed)) acpi_rsdp2_t;
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typedef struct {
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acpi_sdt_header_t header;
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uint32_t sdt_pointers[];
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} __attribute__((packed)) acpi_rsdt_t;
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typedef struct {
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acpi_sdt_header_t header;
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uint64_t sdt_pointers[];
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} __attribute__((packed)) acpi_xsdt_t;
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typedef struct {
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uint8_t address_space_id;
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uint8_t register_bit_width;
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uint8_t register_bit_offset;
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uint8_t access_size;
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uint64_t address;
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} __attribute__((packed)) acpi_gas_t;
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typedef struct {
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acpi_sdt_header_t header;
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uint32_t firmware_ctrl;
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uint32_t dsdt;
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uint8_t reserved;
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uint8_t preferred_power_management_profile;
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uint16_t sci_interrupt;
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uint32_t smi_command_port;
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uint8_t acpi_enable;
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uint8_t acpi_disable;
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uint8_t s4bios_req;
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uint8_t pstate_control;
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uint32_t pm1a_event_block;
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uint32_t pm1b_event_block;
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uint32_t pm1a_control_block;
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uint32_t pm1b_control_block;
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uint32_t pm2_control_block;
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uint32_t pm_timer_block;
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uint32_t gpe0_block;
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uint32_t gpe1_block;
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uint8_t pm1_event_length;
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uint8_t pm1_control_length;
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uint8_t pm2_control_length;
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uint8_t pm_timer_length;
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uint8_t gpe0_length;
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uint8_t gpe1_length;
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uint8_t gpe1_base;
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uint8_t cstate_control;
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uint16_t worst_c2_latency;
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uint16_t worst_c3_latency;
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uint16_t flush_size;
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uint16_t flush_stride;
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uint8_t duty_offset;
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uint8_t duty_width;
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uint8_t day_alarm;
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uint8_t month_alarm;
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uint8_t century;
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uint16_t boot_architecture_flags;
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uint8_t reserved2;
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uint32_t flags;
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acpi_gas_t reset_reg;
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uint8_t reset_value;
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uint16_t arm_boot_architecture_flags;
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uint8_t fadt_minor_version;
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uint64_t x_firmware_ctrl;
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uint64_t x_dsdt;
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acpi_gas_t x_pm1a_event_block;
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acpi_gas_t x_pm1b_event_block;
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acpi_gas_t x_pm1a_control_block;
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acpi_gas_t x_pm1b_control_block;
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acpi_gas_t x_pm2_control_block;
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acpi_gas_t x_pm_timer_block;
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acpi_gas_t x_gpe0_block;
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acpi_gas_t x_gpe1_block;
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} __attribute__((packed)) acpi_fadt_t;
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typedef struct {
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acpi_sdt_header_t header;
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uint32_t local_apic_address;
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uint32_t flags;
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uint8_t entries[];
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} __attribute__((packed)) acpi_madt_t;
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#define MADT_ENTRY_LAPIC 0
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#define MADT_ENTRY_IOAPIC 1
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#define MADT_ENTRY_ISO 2
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#define MADT_ENTRY_NMI 4
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#define MADT_ENTRY_LAPIC_ADDR 5
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#define MADT_ENTRY_IOAPIC_MMIO 6
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typedef struct {
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uint8_t type;
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uint8_t length;
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} __attribute__((packed)) madt_entry_header_t;
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typedef struct {
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madt_entry_header_t header;
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uint8_t processor_id;
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uint8_t apic_id;
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uint32_t flags;
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} __attribute__((packed)) madt_lapic_entry_t;
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typedef struct {
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madt_entry_header_t header;
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uint8_t ioapic_id;
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uint8_t reserved;
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uint32_t ioapic_address;
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uint32_t global_system_interrupt_base;
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} __attribute__((packed)) madt_ioapic_entry_t;
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typedef struct {
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madt_entry_header_t header;
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uint8_t bus;
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uint8_t source;
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uint32_t global_system_interrupt;
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uint16_t flags;
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} __attribute__((packed)) madt_iso_entry_t;
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typedef struct {
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acpi_sdt_header_t 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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uint8_t address_space_id;
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uint8_t register_bit_width;
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uint8_t register_bit_offset;
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uint8_t reserved2;
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uint64_t 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)) acpi_hpet_t;
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typedef struct {
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acpi_sdt_header_t header;
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uint64_t reserved;
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} __attribute__((packed)) acpi_mcfg_t;
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typedef struct {
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uint64_t base_address;
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uint16_t pci_segment_group;
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uint8_t start_pci_bus;
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uint8_t end_pci_bus;
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uint32_t reserved;
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} __attribute__((packed)) mcfg_entry_t;
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typedef struct {
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acpi_sdt_header_t header;
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uint8_t definition_block[];
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} __attribute__((packed)) acpi_ssdt_t;
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void acpi_init(void);
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bool acpi_is_available(void);
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void* acpi_find_table(const char* signature, uint64_t index);
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void acpi_print_tables(void);
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extern volatile struct limine_rsdp_request rsdp_request;
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void acpi_shutdown(void);
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void acpi_reboot(void);
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#endif
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