/* * Extensible Firmware Interface * Based on 'Extensible Firmware Interface Specification' version 0.9, * April 30, 1999 * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co. * David Mosberger-Tang * Stephane Eranian * * From include/linux/efi.h in kernel 4.1 with some additions/subtractions */ #ifndef _EFI_API_H #define _EFI_API_H #include /* EFI Boot Services table */ struct efi_boot_services { struct efi_table_hdr hdr; void *raise_tpl; void *restore_tpl; efi_status_t (EFIAPI *allocate_pages)(int, int, unsigned long, efi_physical_addr_t *); efi_status_t (EFIAPI *free_pages)(efi_physical_addr_t, unsigned long); efi_status_t (EFIAPI *get_memory_map)(unsigned long *memory_map_size, struct efi_mem_desc *desc, unsigned long *key, unsigned long *desc_size, u32 *desc_version); efi_status_t (EFIAPI *allocate_pool)(int, unsigned long, void **); efi_status_t (EFIAPI *free_pool)(void *); void *create_event; void *set_timer; efi_status_t(EFIAPI *wait_for_event)(unsigned long number_of_events, void *event, unsigned long *index); void *signal_event; void *close_event; void *check_event; void *install_protocol_interface; void *reinstall_protocol_interface; void *uninstall_protocol_interface; efi_status_t (EFIAPI *handle_protocol)(efi_handle_t, efi_guid_t *, void **); void *reserved; void *register_protocol_notify; efi_status_t (EFIAPI *locate_handle)( enum efi_locate_search_type search_type, efi_guid_t *protocol, void *search_key, unsigned long *buffer_size, efi_handle_t *buffer); efi_status_t (EFIAPI *locate_device_path)(efi_guid_t *protocol, struct efi_device_path **device_path, efi_handle_t *device); void *install_configuration_table; efi_status_t (EFIAPI *load_image)(bool boot_policiy, efi_handle_t parent_image, struct efi_device_path *file_path, void *source_buffer, unsigned long source_size, efi_handle_t *image); efi_status_t (EFIAPI *start_image)(efi_handle_t handle, unsigned long *exitdata_size, s16 **exitdata); efi_status_t (EFIAPI *exit)(efi_handle_t handle, efi_status_t exit_status, unsigned long exitdata_size, s16 *exitdata); void *unload_image; efi_status_t (EFIAPI *exit_boot_services)(efi_handle_t, unsigned long); efi_status_t (EFIAPI *get_next_monotonic_count)(u64 *count); efi_status_t (EFIAPI *stall)(unsigned long usecs); void *set_watchdog_timer; efi_status_t(EFIAPI *connect_controller)(efi_handle_t controller_handle, efi_handle_t *driver_image_handle, struct efi_device_path *remaining_device_path, bool recursive); void *disconnect_controller; #define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL 0x00000001 #define EFI_OPEN_PROTOCOL_GET_PROTOCOL 0x00000002 #define EFI_OPEN_PROTOCOL_TEST_PROTOCOL 0x00000004 #define EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008 #define EFI_OPEN_PROTOCOL_BY_DRIVER 0x00000010 #define EFI_OPEN_PROTOCOL_EXCLUSIVE 0x00000020 efi_status_t (EFIAPI *open_protocol)(efi_handle_t handle, efi_guid_t *protocol, void **interface, efi_handle_t agent_handle, efi_handle_t controller_handle, u32 attributes); void *close_protocol; efi_status_t(EFIAPI *open_protocol_information)(efi_handle_t handle, efi_guid_t *protocol, struct efi_open_protocol_info_entry **entry_buffer, unsigned long *entry_count); efi_status_t (EFIAPI *protocols_per_handle)(efi_handle_t handle, efi_guid_t ***protocol_buffer, unsigned long *protocols_buffer_count); efi_status_t (EFIAPI *locate_handle_buffer) ( enum efi_locate_search_type search_type, efi_guid_t *protocol, void *search_key, unsigned long *no_handles, efi_handle_t **buffer); void *locate_protocol; void *install_multiple_protocol_interfaces; void *uninstall_multiple_protocol_interfaces; void *calculate_crc32; void *copy_mem; void *set_mem; void *create_event_ex; }; /* Types and defines for EFI ResetSystem */ enum efi_reset_type { EFI_RESET_COLD = 0, EFI_RESET_WARM = 1, EFI_RESET_SHUTDOWN = 2 }; /* EFI Runtime Services table */ #define EFI_RUNTIME_SERVICES_SIGNATURE 0x5652453544e5552ULL #define EFI_RUNTIME_SERVICES_REVISION 0x00010000 struct efi_runtime_services { struct efi_table_hdr hdr; void *get_time; void *set_time; void *get_wakeup_time; void *set_wakeup_time; void *set_virtual_address_map; void *convert_pointer; efi_status_t (EFIAPI *get_variable)(s16 *variable_name, efi_guid_t *vendor, u32 *attributes, unsigned long *data_size, void *data); efi_status_t (EFIAPI *get_next_variable)( unsigned long *variable_name_size, s16 *variable_name, efi_guid_t *vendor); efi_status_t (EFIAPI *set_variable)(s16 *variable_name, efi_guid_t *vendor, u32 attributes, unsigned long data_size, void *data); void *get_next_high_mono_count; void (EFIAPI *reset_system)(enum efi_reset_type reset_type, efi_status_t reset_status, unsigned long data_size, void *reset_data); void *update_capsule; void *query_capsule_caps; void *query_variable_info; }; /* EFI Configuration Table and GUID definitions */ #define NULL_GUID \ EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00) #define LOADED_IMAGE_PROTOCOL_GUID \ EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, \ 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) struct efi_system_table { struct efi_table_hdr hdr; unsigned long fw_vendor; /* physical addr of wchar_t vendor string */ u32 fw_revision; unsigned long con_in_handle; struct efi_simple_input_interface *con_in; unsigned long con_out_handle; struct efi_simple_text_output_protocol *con_out; unsigned long stderr_handle; unsigned long std_err; struct efi_runtime_services *runtime; struct efi_boot_services *boottime; unsigned long nr_tables; unsigned long tables; }; struct efi_loaded_image { u32 revision; void *parent_handle; struct efi_system_table *system_table; void *device_handle; void *file_path; void *reserved; u32 load_options_size; void *load_options; void *image_base; aligned_u64 image_size; unsigned int image_code_type; unsigned int image_data_type; unsigned long unload; }; struct efi_device_path { u8 type; u8 sub_type; u16 length; }; struct simple_text_output_mode { s32 max_mode; s32 mode; s32 attribute; s32 cursor_column; s32 cursor_row; bool cursor_visible; }; struct efi_simple_text_output_protocol { void *reset; efi_status_t (EFIAPI *output_string)( struct efi_simple_text_output_protocol *this, const unsigned short *str); void *test_string; efi_status_t(EFIAPI *query_mode)( struct efi_simple_text_output_protocol *this, unsigned long mode_number, unsigned long *columns, unsigned long *rows); efi_status_t(EFIAPI *set_mode)( struct efi_simple_text_output_protocol *this, unsigned long mode_number); efi_status_t(EFIAPI *set_attribute)( struct efi_simple_text_output_protocol *this, unsigned long attribute); efi_status_t(EFIAPI *clear_screen) ( struct efi_simple_text_output_protocol *this); efi_status_t(EFIAPI *set_cursor_position) ( struct efi_simple_text_output_protocol *this, unsigned long column, unsigned long row); efi_status_t(EFIAPI *enable_cursor)(void *, bool enable); struct simple_text_output_mode *mode; }; struct efi_input_key { u16 scan_code; s16 unicode_char; }; struct efi_simple_input_interface { efi_status_t(EFIAPI *reset)(struct efi_simple_input_interface *this, bool ExtendedVerification); efi_status_t(EFIAPI *read_key_stroke)( struct efi_simple_input_interface *this, struct efi_input_key *key); void *wait_for_key; }; #endif