feat: added basic ACPI support using LAI
This commit is contained in:
256
include/myke/acpi/structures.h
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256
include/myke/acpi/structures.h
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//
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// Created by rick on 22-08-21.
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//
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#ifndef NEW_KERNEL_STRUCTURES_H
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#define NEW_KERNEL_STRUCTURES_H
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#include <attributes.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#define RDSP_SIGNATURE_LENGTH 8
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#define RSDP_SIGNATURE "RSD PTR "
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enum generic_address_structure_address_space {
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system_memory = 0,
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system_io = 1,
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pci_config_space = 2,
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embedded_controller = 3,
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system_management_bus = 4,
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system_cmos = 5,
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pci_device_bar = 6,
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ipmi = 7,
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gpio = 8,
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gsb = 9,
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pmc = 0x0A
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};
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enum generic_address_structure_access_size {
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undefined = 0,
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uint8 = 1,
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uint16 = 2,
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uint32 = 3,
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uint64 = 4,
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};
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struct generic_address_structure {
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uint8_t address_space;
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uint8_t bit_width;
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uint8_t bit_offset;
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uint8_t access_size;
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uint64_t address;
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};
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struct acpi_rsdp_descriptor {
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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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} att_packed;
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struct acpi_rsdp_descriptor_20 {
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struct acpi_rsdp_descriptor rsdp;
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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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uint32_t: 24; // reserved
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} att_packed;
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struct acpi_sdt_header {
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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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} att_packed;
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struct acpi_rsdt {
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struct acpi_sdt_header header;
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uint32_t pointer_to_other_sdt[];
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} att_packed;
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struct acpi_xsdt {
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struct acpi_sdt_header header;
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uint64_t pointer_to_other_sdt[];
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} att_packed;
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struct acpi_fadt {
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struct acpi_sdt_header header;
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uint32_t firmware_ctrl;
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uint32_t dsdt;
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// field used in ACPI 1.0; no longer in use, for compatibility only
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uint8_t: 8;
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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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// reserved in ACPI 1.0; used since ACPI 2.0+
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uint16_t boot_architecture_flags;
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uint8_t: 8;
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uint32_t flags;
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// 12 byte structure; see below for details
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struct generic_address_structure reset_reg;
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uint8_t reset_value;
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uint16_t arm_boot_arch;
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uint8_t fadt_minor_version;
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// 64bit pointers - Available on ACPI 2.0+
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uint64_t x_firmware_control;
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uint64_t x_dsdt;
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struct generic_address_structure x_pm1a_event_block;
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struct generic_address_structure x_pm1b_event_block;
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struct generic_address_structure x_pm1a_control_block;
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struct generic_address_structure x_pm1b_control_block;
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struct generic_address_structure x_pm2_control_block;
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struct generic_address_structure x_pm_timer_block;
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struct generic_address_structure x_gpe0_block;
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struct generic_address_structure x_gpe1_block;
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struct generic_address_structure sleep_control_register;
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struct generic_address_structure sleep_status_register;
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uint64_t hypervisor_id;
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} att_packed;
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#define MADT_TYPE_PROCESSOR_LOCAL_APIC 0
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#define MADT_TYPE_IO_APIC 1
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#define MADT_TYPE_IO_APIC_INTERRUPT_SOURCE_OVERRIDE 2
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#define MADT_TYPE_IO_APIC_NON_MASKABLE_INTERRUPT_SOURCE 3
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#define MADT_TYPE_LOCAL_APIC_NON_MASKABLE_INTERRUPTS 4
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#define MADT_TYPE_LOCAL_APIC_ADDRESS_OVERRIDE 5
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#define MADT_TYPE_PROCESSOR_LOCAL_X2_APIC 9
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union madt_local_apic_flags {
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uint32_t flags_int;
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struct {
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bool processor_enabled: 1;
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bool online_capable: 1;
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} flags;
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};
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union madt_interrupt_flags {
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uint16_t flags_int;
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struct {
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bool: 1; // 1
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bool active_low: 1; // 2
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bool: 1; // 4
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bool level_triggered: 1; // 8
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} att_packed;
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};
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struct acpi_madt {
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struct acpi_sdt_header header;
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uint32_t local_apic_addr;
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union {
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uint32_t flags_int;
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struct {
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bool dual_8259_legacy_pics: 1;
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};
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};
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uint8_t entries[];
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} att_packed;
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struct acpi_madt_entry_header {
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uint8_t type;
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uint8_t length;
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} att_packed;
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struct acpi_madt_local_apic { // type 0
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struct acpi_madt_entry_header header;
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uint8_t processor_id;
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uint8_t apic_id;
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union madt_local_apic_flags flags;
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} att_packed;
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struct acpi_madt_io_apic { // type 1
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struct acpi_madt_entry_header header;
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uint8_t apic_id;
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uint8_t: 8; // reserved
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uint32_t io_apic_address;
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uint32_t global_system_interrupt_base;
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} att_packed;
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struct acpi_madt_io_apic_interrupt_source_override { // type 2
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struct acpi_madt_entry_header header;
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uint8_t bus_source;
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uint8_t irq_source;
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uint32_t global_system_interrupt;
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union madt_interrupt_flags flags;
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} att_packed;
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struct acpi_madt_io_apic_non_maskable_interrupt { // type 3
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struct acpi_madt_entry_header header;
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uint8_t nmi_source;
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uint8_t: 8; // reserved
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union madt_interrupt_flags flags;
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uint32_t global_system_interrupt;
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} att_packed;
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struct acpi_madt_local_apic_non_maskable_interrupts {
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struct acpi_madt_entry_header header;
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uint8_t acpi_processor_id;
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union madt_interrupt_flags flags;
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uint8_t lint_no;
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} att_packed;
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struct acpi_madt_local_apic_address_override {
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struct acpi_madt_entry_header header;
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uint16_t: 16; // reserved
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uint64_t physical_address_local_apic;
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} att_packed;
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struct acpi_madt_processor_local_x2_apic {
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struct acpi_madt_entry_header header;
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uint16_t: 16; // reserved
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uint32_t processors_local_x2_apic_id;
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union madt_local_apic_flags flags;
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uint32_t acpi_id;
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} att_packed;
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struct acpi_type {
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char name[4];
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char *description;
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void (*handle_table)(const struct acpi_sdt_header *addr);
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};
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#endif //NEW_KERNEL_STRUCTURES_H
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