// // Created by rick on 22-08-21. // #ifndef NEW_KERNEL_STRUCTURES_H #define NEW_KERNEL_STRUCTURES_H #include #include #include #define RDSP_SIGNATURE_LENGTH 8 #define RSDP_SIGNATURE "RSD PTR " enum generic_address_structure_address_space { system_memory = 0, system_io = 1, pci_config_space = 2, embedded_controller = 3, system_management_bus = 4, system_cmos = 5, pci_device_bar = 6, ipmi = 7, gpio = 8, gsb = 9, pmc = 0x0A }; enum generic_address_structure_access_size { undefined = 0, uint8 = 1, uint16 = 2, uint32 = 3, uint64 = 4, }; struct generic_address_structure { uint8_t address_space; uint8_t bit_width; uint8_t bit_offset; uint8_t access_size; uint64_t address; }; struct acpi_rsdp_descriptor { char signature[8]; uint8_t checksum; char oem_id[6]; uint8_t revision; uint32_t rsdt_address; } att_packed; struct acpi_rsdp_descriptor_20 { struct acpi_rsdp_descriptor rsdp; uint32_t length; uint64_t xsdt_address; uint8_t extended_checksum; uint32_t: 24; // reserved } att_packed; struct acpi_sdt_header { char signature[4]; uint32_t length; uint8_t revision; uint8_t checksum; char oem_id[6]; char oem_table_id[8]; uint32_t oem_revision; uint32_t creator_id; uint32_t creator_revision; } att_packed; struct acpi_rsdt { struct acpi_sdt_header header; uint32_t pointer_to_other_sdt[]; } att_packed; struct acpi_xsdt { struct acpi_sdt_header header; uint64_t pointer_to_other_sdt[]; } att_packed; struct acpi_fadt { struct acpi_sdt_header header; uint32_t firmware_ctrl; uint32_t dsdt; // field used in ACPI 1.0; no longer in use, for compatibility only uint8_t: 8; uint8_t preferred_power_management_profile; uint16_t sci_interrupt; uint32_t smi_command_port; uint8_t acpi_enable; uint8_t acpi_disable; uint8_t s4bios_req; uint8_t pstate_control; uint32_t pm1a_event_block; uint32_t pm1b_event_block; uint32_t pm1a_control_block; uint32_t pm1b_control_block; uint32_t pm2_control_block; uint32_t pm_timer_block; uint32_t gpe0_block; uint32_t gpe1_block; uint8_t pm1_event_length; uint8_t pm1_control_length; uint8_t pm2_control_length; uint8_t pm_timer_length; uint8_t gpe0_length; uint8_t gpe1_length; uint8_t gpe1_base; uint8_t cstate_control; uint16_t worst_c2_latency; uint16_t worst_c3_latency; uint16_t flush_size; uint16_t flush_stride; uint8_t duty_offset; uint8_t duty_width; uint8_t day_alarm; uint8_t month_alarm; uint8_t century; // reserved in ACPI 1.0; used since ACPI 2.0+ uint16_t boot_architecture_flags; uint8_t: 8; uint32_t flags; // 12 byte structure; see below for details struct generic_address_structure reset_reg; uint8_t reset_value; uint16_t arm_boot_arch; uint8_t fadt_minor_version; // 64bit pointers - Available on ACPI 2.0+ uint64_t x_firmware_control; uint64_t x_dsdt; struct generic_address_structure x_pm1a_event_block; struct generic_address_structure x_pm1b_event_block; struct generic_address_structure x_pm1a_control_block; struct generic_address_structure x_pm1b_control_block; struct generic_address_structure x_pm2_control_block; struct generic_address_structure x_pm_timer_block; struct generic_address_structure x_gpe0_block; struct generic_address_structure x_gpe1_block; struct generic_address_structure sleep_control_register; struct generic_address_structure sleep_status_register; uint64_t hypervisor_id; } att_packed; #define MADT_TYPE_PROCESSOR_LOCAL_APIC 0 #define MADT_TYPE_IO_APIC 1 #define MADT_TYPE_IO_APIC_INTERRUPT_SOURCE_OVERRIDE 2 #define MADT_TYPE_IO_APIC_NON_MASKABLE_INTERRUPT_SOURCE 3 #define MADT_TYPE_LOCAL_APIC_NON_MASKABLE_INTERRUPTS 4 #define MADT_TYPE_LOCAL_APIC_ADDRESS_OVERRIDE 5 #define MADT_TYPE_PROCESSOR_LOCAL_X2_APIC 9 union madt_local_apic_flags { uint32_t flags_int; struct { bool processor_enabled: 1; bool online_capable: 1; } flags; }; union madt_interrupt_flags { uint16_t flags_int; struct { bool: 1; // 1 bool active_low: 1; // 2 bool: 1; // 4 bool level_triggered: 1; // 8 } att_packed; }; struct acpi_madt { struct acpi_sdt_header header; uint32_t local_apic_addr; union { uint32_t flags_int; struct { bool dual_8259_legacy_pics: 1; }; }; uint8_t entries[]; } att_packed; struct acpi_madt_entry_header { uint8_t type; uint8_t length; } att_packed; struct acpi_madt_local_apic { // type 0 struct acpi_madt_entry_header header; uint8_t processor_id; uint8_t apic_id; union madt_local_apic_flags flags; } att_packed; struct acpi_madt_io_apic { // type 1 struct acpi_madt_entry_header header; uint8_t apic_id; uint8_t: 8; // reserved uint32_t io_apic_address; uint32_t global_system_interrupt_base; } att_packed; struct acpi_madt_io_apic_interrupt_source_override { // type 2 struct acpi_madt_entry_header header; uint8_t bus_source; uint8_t irq_source; uint32_t global_system_interrupt; union madt_interrupt_flags flags; } att_packed; struct acpi_madt_io_apic_non_maskable_interrupt { // type 3 struct acpi_madt_entry_header header; uint8_t nmi_source; uint8_t: 8; // reserved union madt_interrupt_flags flags; uint32_t global_system_interrupt; } att_packed; struct acpi_madt_local_apic_non_maskable_interrupts { struct acpi_madt_entry_header header; uint8_t acpi_processor_id; union madt_interrupt_flags flags; uint8_t lint_no; } att_packed; struct acpi_madt_local_apic_address_override { struct acpi_madt_entry_header header; uint16_t: 16; // reserved uint64_t physical_address_local_apic; } att_packed; struct acpi_madt_processor_local_x2_apic { struct acpi_madt_entry_header header; uint16_t: 16; // reserved uint32_t processors_local_x2_apic_id; union madt_local_apic_flags flags; uint32_t acpi_id; } att_packed; struct acpi_type { char name[4]; char *description; void (*handle_table)(const struct acpi_sdt_header *addr); }; #endif //NEW_KERNEL_STRUCTURES_H