include/efi_api.h - platform/external/u-boot - Gitiles

 /*
  * 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 <drummond@valinux.com>
  * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co.
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  *	Stephane Eranian <eranian@hpl.hp.com>
  *
  * From include/linux/efi.h in kernel 4.1 with some additions/subtractions
  */

 #ifndef _EFI_API_H
 #define _EFI_API_H

 #include <efi.h>

 #ifdef CONFIG_EFI_LOADER
 #include <asm/setjmp.h>
 #endif

 /* Types and defines for EFI CreateEvent */
 enum efi_event_type {
 	EFI_TIMER_STOP = 0,
 	EFI_TIMER_PERIODIC = 1,
 	EFI_TIMER_RELATIVE = 2
 };

 #define EVT_NOTIFY_WAIT		0x00000100
 #define EVT_NOTIFY_SIGNAL	0x00000200

 /* EFI Boot Services table */
 struct efi_boot_services {
 	struct efi_table_hdr hdr;
 	efi_status_t (EFIAPI *raise_tpl)(unsigned long new_tpl);
 	void (EFIAPI *restore_tpl)(unsigned long old_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 *);

 	efi_status_t (EFIAPI *create_event)(enum efi_event_type type,
 			unsigned long notify_tpl,
 			void (EFIAPI *notify_function) (void *event,
 							void *context),
 			void *notify_context, void **event);
 	efi_status_t (EFIAPI *set_timer)(void *event, int type,
 			uint64_t trigger_time);
 	efi_status_t (EFIAPI *wait_for_event)(unsigned long number_of_events,
 			void *event, unsigned long *index);
 	efi_status_t (EFIAPI *signal_event)(void *event);
 	efi_status_t (EFIAPI *close_event)(void *event);
 	efi_status_t (EFIAPI *check_event)(void *event);

 	efi_status_t (EFIAPI *install_protocol_interface)(
 			void **handle, efi_guid_t *protocol,
 			int protocol_interface_type, void *protocol_interface);
 	efi_status_t (EFIAPI *reinstall_protocol_interface)(
 			void *handle, efi_guid_t *protocol,
 			void *old_interface, void *new_interface);
 	efi_status_t (EFIAPI *uninstall_protocol_interface)(void *handle,
 			efi_guid_t *protocol, void *protocol_interface);
 	efi_status_t (EFIAPI *handle_protocol)(efi_handle_t, efi_guid_t *,
 					       void **);
 	void *reserved;
 	efi_status_t (EFIAPI *register_protocol_notify)(
 			efi_guid_t *protocol, void *event,
 			void **registration);
 	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);
 	efi_status_t (EFIAPI *install_configuration_table)(
 			efi_guid_t *guid, void *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);
 	efi_status_t (EFIAPI *unload_image)(void *image_handle);
 	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);
 	efi_status_t (EFIAPI *set_watchdog_timer)(unsigned long timeout,
 			uint64_t watchdog_code, unsigned long data_size,
 			uint16_t *watchdog_data);
 	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);
 	efi_status_t (EFIAPI *disconnect_controller)(void *controller_handle,
 			void *driver_image_handle, void *child_handle);
 #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);
 	efi_status_t (EFIAPI *close_protocol)(void *handle,
 			efi_guid_t *protocol, void *agent_handle,
 			void *controller_handle);
 	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);
 	efi_status_t (EFIAPI *locate_protocol)(efi_guid_t *protocol,
 			void *registration, void **protocol_interface);
 	efi_status_t (EFIAPI *install_multiple_protocol_interfaces)(
 			void **handle, ...);
 	efi_status_t (EFIAPI *uninstall_multiple_protocol_interfaces)(
 			void *handle, ...);
 	efi_status_t (EFIAPI *calculate_crc32)(void *data,
 			unsigned long data_size, uint32_t *crc32);
 	void (EFIAPI *copy_mem)(void *destination, void *source,
 			unsigned long length);
 	void (EFIAPI *set_mem)(void *buffer, unsigned long size,
 			uint8_t value);
 	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;
 	efi_status_t (EFIAPI *get_time)(struct efi_time *time,
 			struct efi_time_cap *capabilities);
 	efi_status_t (EFIAPI *set_time)(struct efi_time *time);
 	efi_status_t (EFIAPI *get_wakeup_time)(char *enabled, char *pending,
 			struct efi_time *time);
 	efi_status_t (EFIAPI *set_wakeup_time)(char enabled,
 			struct efi_time *time);
 	efi_status_t (EFIAPI *set_virtual_address_map)(
 			unsigned long memory_map_size,
 			unsigned long descriptor_size,
 			uint32_t descriptor_version,
 			struct efi_mem_desc *virtmap);
 	efi_status_t (*convert_pointer)(unsigned long dbg, void **address);
 	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);
 	efi_status_t (EFIAPI *get_next_high_mono_count)(
 			uint32_t *high_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)

 #define EFI_FDT_GUID \
 	EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, \
 		 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)

 #define SMBIOS_TABLE_GUID \
 	EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3,  \
 		 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

 struct efi_configuration_table
 {
 	efi_guid_t guid;
 	void *table;
 };

 #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)

 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;
 	struct efi_simple_text_output_protocol *std_err;
 	struct efi_runtime_services *runtime;
 	struct efi_boot_services *boottime;
 	unsigned long nr_tables;
 	struct efi_configuration_table *tables;
 };

 #define LOADED_IMAGE_GUID \
 	EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, \
 		 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)

 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;

 	/* Below are efi loader private fields */
 #ifdef CONFIG_EFI_LOADER
 	efi_status_t exit_status;
 	struct jmp_buf_data exit_jmp;
 #endif
 };

 #define DEVICE_PATH_GUID \
 	EFI_GUID(0x09576e91, 0x6d3f, 0x11d2, \
 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )

 #define DEVICE_PATH_TYPE_END			0x7f
 #  define DEVICE_PATH_SUB_TYPE_END		0xff

 struct efi_device_path {
 	u8 type;
 	u8 sub_type;
 	u16 length;
 };

 struct efi_mac_addr {
 	u8 addr[32];
 };

 #define DEVICE_PATH_TYPE_MESSAGING_DEVICE	0x03
 #  define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR	0x0b

 struct efi_device_path_mac_addr {
 	struct efi_device_path dp;
 	struct efi_mac_addr mac;
 	u8 if_type;
 };

 #define DEVICE_PATH_TYPE_MEDIA_DEVICE		0x04
 #  define DEVICE_PATH_SUB_TYPE_FILE_PATH	0x04

 struct efi_device_path_file_path {
 	struct efi_device_path dp;
 	u16 str[32];
 };

 #define BLOCK_IO_GUID \
 	EFI_GUID(0x964e5b21, 0x6459, 0x11d2, \
 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)

 struct efi_block_io_media
 {
 	u32 media_id;
 	char removable_media;
 	char media_present;
 	char logical_partition;
 	char read_only;
 	char write_caching;
 	u8 pad[3];
 	u32 block_size;
 	u32 io_align;
 	u8 pad2[4];
 	u64 last_block;
 };

 struct efi_block_io {
 	u64 revision;
 	struct efi_block_io_media *media;
 	efi_status_t (EFIAPI *reset)(struct efi_block_io *this,
 			char extended_verification);
 	efi_status_t (EFIAPI *read_blocks)(struct efi_block_io *this,
 			u32 media_id, u64 lba, unsigned long buffer_size,
 			void *buffer);
 	efi_status_t (EFIAPI *write_blocks)(struct efi_block_io *this,
 			u32 media_id, u64 lba, unsigned long buffer_size,
 			void *buffer);
 	efi_status_t (EFIAPI *flush_blocks)(struct efi_block_io *this);
 };

 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);
 	efi_status_t (EFIAPI *test_string)(
 			struct efi_simple_text_output_protocol *this,
 			const unsigned short *str);
 	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)(
 			struct efi_simple_text_output_protocol *this,
 			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;
 };

 #define CONSOLE_CONTROL_GUID \
 	EFI_GUID(0xf42f7782, 0x12e, 0x4c12, \
 		 0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21)
 #define EFI_CONSOLE_MODE_TEXT	0
 #define EFI_CONSOLE_MODE_GFX	1

 struct efi_console_control_protocol
 {
 	efi_status_t (EFIAPI *get_mode)(
 			struct efi_console_control_protocol *this, int *mode,
 			char *uga_exists, char *std_in_locked);
 	efi_status_t (EFIAPI *set_mode)(
 			struct efi_console_control_protocol *this, int mode);
 	efi_status_t (EFIAPI *lock_std_in)(
 			struct efi_console_control_protocol *this,
 			uint16_t *password);
 };

 #define EFI_GOP_GUID \
 	EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \
 		 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)

 #define EFI_GOT_RGBA8		0
 #define EFI_GOT_BGRA8		1
 #define EFI_GOT_BITMASK		2

 struct efi_gop_mode_info
 {
 	u32 version;
 	u32 width;
 	u32 height;
 	u32 pixel_format;
 	u32 pixel_bitmask[4];
 	u32 pixels_per_scanline;
 };

 struct efi_gop_mode
 {
 	u32 max_mode;
 	u32 mode;
 	struct efi_gop_mode_info *info;
 	unsigned long info_size;
 	efi_physical_addr_t fb_base;
 	unsigned long fb_size;
 };

 #define EFI_BLT_VIDEO_FILL		0
 #define EFI_BLT_VIDEO_TO_BLT_BUFFER	1
 #define EFI_BLT_BUFFER_TO_VIDEO		2
 #define EFI_BLT_VIDEO_TO_VIDEO		3

 struct efi_gop
 {
 	efi_status_t (EFIAPI *query_mode)(struct efi_gop *this, u32 mode_number,
 					  unsigned long *size_of_info,
 					  struct efi_gop_mode_info **info);
 	efi_status_t (EFIAPI *set_mode)(struct efi_gop *this, u32 mode_number);
 	efi_status_t (EFIAPI *blt)(struct efi_gop *this, void *buffer,
 				   unsigned long operation, unsigned long sx,
 				   unsigned long sy, unsigned long dx,
 				   unsigned long dy, unsigned long width,
 				   unsigned long height, unsigned long delta);
 	struct efi_gop_mode *mode;
 };

 #define EFI_SIMPLE_NETWORK_GUID \
 	EFI_GUID(0xa19832b9, 0xac25, 0x11d3, \
 		 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

 struct efi_mac_address {
 	char mac_addr[32];
 };

 struct efi_ip_address {
 	u8 ip_addr[16];
 };

 enum efi_simple_network_state {
 	EFI_NETWORK_STOPPED,
 	EFI_NETWORK_STARTED,
 	EFI_NETWORK_INITIALIZED,
 };

 struct efi_simple_network_mode {
 	enum efi_simple_network_state state;
 	u32 hwaddr_size;
 	u32 media_header_size;
 	u32 max_packet_size;
 	u32 nvram_size;
 	u32 nvram_access_size;
 	u32 receive_filter_mask;
 	u32 receive_filter_setting;
 	u32 max_mcast_filter_count;
 	u32 mcast_filter_count;
 	struct efi_mac_address mcast_filter[16];
 	struct efi_mac_address current_address;
 	struct efi_mac_address broadcast_address;
 	struct efi_mac_address permanent_address;
 	u8 if_type;
 	u8 mac_changeable;
 	u8 multitx_supported;
 	u8 media_present_supported;
 	u8 media_present;
 };

 #define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01,
 #define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02,
 #define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04,
 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08,
 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10,

 struct efi_simple_network
 {
 	u64 revision;
 	efi_status_t (EFIAPI *start)(struct efi_simple_network *this);
 	efi_status_t (EFIAPI *stop)(struct efi_simple_network *this);
 	efi_status_t (EFIAPI *initialize)(struct efi_simple_network *this,
 			ulong extra_rx, ulong extra_tx);
 	efi_status_t (EFIAPI *reset)(struct efi_simple_network *this,
 			int extended_verification);
 	efi_status_t (EFIAPI *shutdown)(struct efi_simple_network *this);
 	efi_status_t (EFIAPI *receive_filters)(struct efi_simple_network *this,
 			u32 enable, u32 disable, int reset_mcast_filter,
 			ulong mcast_filter_count,
 			struct efi_mac_address *mcast_filter);
 	efi_status_t (EFIAPI *station_address)(struct efi_simple_network *this,
 			int reset, struct efi_mac_address *new_mac);
 	efi_status_t (EFIAPI *statistics)(struct efi_simple_network *this,
 			int reset, ulong *stat_size, void *stat_table);
 	efi_status_t (EFIAPI *mcastiptomac)(struct efi_simple_network *this,
 			int ipv6, struct efi_ip_address *ip,
 			struct efi_mac_address *mac);
 	efi_status_t (EFIAPI *nvdata)(struct efi_simple_network *this,
 			int read_write, ulong offset, ulong buffer_size,
 			char *buffer);
 	efi_status_t (EFIAPI *get_status)(struct efi_simple_network *this,
 			u32 *int_status, void **txbuf);
 	efi_status_t (EFIAPI *transmit)(struct efi_simple_network *this,
 			ulong header_size, ulong buffer_size, void *buffer,
 			struct efi_mac_address *src_addr,
 			struct efi_mac_address *dest_addr, u16 *protocol);
 	efi_status_t (EFIAPI *receive)(struct efi_simple_network *this,
 			ulong *header_size, ulong *buffer_size, void *buffer,
 			struct efi_mac_address *src_addr,
 			struct efi_mac_address *dest_addr, u16 *protocol);
 	void (EFIAPI *waitforpacket)(void);
 	struct efi_simple_network_mode *mode;
 };

 #define EFI_PXE_GUID \
 	EFI_GUID(0x03c4e603, 0xac28, 0x11d3, \
 		 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

 struct efi_pxe_packet {
 	u8 packet[1472];
 };

 struct efi_pxe_mode
 {
 	u8 unused[52];
 	struct efi_pxe_packet dhcp_discover;
 	struct efi_pxe_packet dhcp_ack;
 	struct efi_pxe_packet proxy_offer;
 	struct efi_pxe_packet pxe_discover;
 	struct efi_pxe_packet pxe_reply;
 };

 struct efi_pxe {
 	u64 rev;
 	void (EFIAPI *start)(void);
 	void (EFIAPI *stop)(void);
 	void (EFIAPI *dhcp)(void);
 	void (EFIAPI *discover)(void);
 	void (EFIAPI *mftp)(void);
 	void (EFIAPI *udpwrite)(void);
 	void (EFIAPI *udpread)(void);
 	void (EFIAPI *setipfilter)(void);
 	void (EFIAPI *arp)(void);
 	void (EFIAPI *setparams)(void);
 	void (EFIAPI *setstationip)(void);
 	void (EFIAPI *setpackets)(void);
 	struct efi_pxe_mode *mode;
 };

 #endif
	/*
	* 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 <drummond@valinux.com>
	* Copyright (C) 1999, 2002-2003 Hewlett-Packard Co.
	* David Mosberger-Tang <davidm@hpl.hp.com>
	* Stephane Eranian <eranian@hpl.hp.com>
	*
	* From include/linux/efi.h in kernel 4.1 with some additions/subtractions
	*/

	#ifndef _EFI_API_H
	#define _EFI_API_H

	#include <efi.h>

	#ifdef CONFIG_EFI_LOADER
	#include <asm/setjmp.h>
	#endif

	/* Types and defines for EFI CreateEvent */
	enum efi_event_type {
	EFI_TIMER_STOP = 0,
	EFI_TIMER_PERIODIC = 1,
	EFI_TIMER_RELATIVE = 2
	};

	#define EVT_NOTIFY_WAIT 0x00000100
	#define EVT_NOTIFY_SIGNAL 0x00000200

	/* EFI Boot Services table */
	struct efi_boot_services {
	struct efi_table_hdr hdr;
	efi_status_t (EFIAPI *raise_tpl)(unsigned long new_tpl);
	void (EFIAPI *restore_tpl)(unsigned long old_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 );

	efi_status_t (EFIAPI *create_event)(enum efi_event_type type,
	unsigned long notify_tpl,
	void (EFIAPI notify_function) (void event,
	void *context),
	void notify_context, void *event);
	efi_status_t (EFIAPI set_timer)(void event, int type,
	uint64_t trigger_time);
	efi_status_t (EFIAPI *wait_for_event)(unsigned long number_of_events,
	void event, unsigned long index);
	efi_status_t (EFIAPI signal_event)(void event);
	efi_status_t (EFIAPI close_event)(void event);
	efi_status_t (EFIAPI check_event)(void event);

	efi_status_t (EFIAPI *install_protocol_interface)(
	void *handle, efi_guid_t protocol,
	int protocol_interface_type, void *protocol_interface);
	efi_status_t (EFIAPI *reinstall_protocol_interface)(
	void handle, efi_guid_t protocol,
	void old_interface, void new_interface);
	efi_status_t (EFIAPI uninstall_protocol_interface)(void handle,
	efi_guid_t protocol, void protocol_interface);
	efi_status_t (EFIAPI handle_protocol)(efi_handle_t, efi_guid_t ,
	void **);
	void *reserved;
	efi_status_t (EFIAPI *register_protocol_notify)(
	efi_guid_t protocol, void event,
	void **registration);
	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);
	efi_status_t (EFIAPI *install_configuration_table)(
	efi_guid_t guid, void 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);
	efi_status_t (EFIAPI unload_image)(void image_handle);
	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);
	efi_status_t (EFIAPI *set_watchdog_timer)(unsigned long timeout,
	uint64_t watchdog_code, unsigned long data_size,
	uint16_t *watchdog_data);
	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);
	efi_status_t (EFIAPI disconnect_controller)(void controller_handle,
	void driver_image_handle, void child_handle);
	#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);
	efi_status_t (EFIAPI close_protocol)(void handle,
	efi_guid_t protocol, void agent_handle,
	void *controller_handle);
	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);
	efi_status_t (EFIAPI locate_protocol)(efi_guid_t protocol,
	void registration, void *protocol_interface);
	efi_status_t (EFIAPI *install_multiple_protocol_interfaces)(
	void **handle, ...);
	efi_status_t (EFIAPI *uninstall_multiple_protocol_interfaces)(
	void *handle, ...);
	efi_status_t (EFIAPI calculate_crc32)(void data,
	unsigned long data_size, uint32_t *crc32);
	void (EFIAPI copy_mem)(void destination, void *source,
	unsigned long length);
	void (EFIAPI set_mem)(void buffer, unsigned long size,
	uint8_t value);
	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;
	efi_status_t (EFIAPI get_time)(struct efi_time time,
	struct efi_time_cap *capabilities);
	efi_status_t (EFIAPI set_time)(struct efi_time time);
	efi_status_t (EFIAPI get_wakeup_time)(char enabled, char *pending,
	struct efi_time *time);
	efi_status_t (EFIAPI *set_wakeup_time)(char enabled,
	struct efi_time *time);
	efi_status_t (EFIAPI *set_virtual_address_map)(
	unsigned long memory_map_size,
	unsigned long descriptor_size,
	uint32_t descriptor_version,
	struct efi_mem_desc *virtmap);
	efi_status_t (convert_pointer)(unsigned long dbg, void *address);
	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);
	efi_status_t (EFIAPI *get_next_high_mono_count)(
	uint32_t *high_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)

	#define EFI_FDT_GUID \
	EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, \
	0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)

	#define SMBIOS_TABLE_GUID \
	EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, \
	0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

	struct efi_configuration_table
	{
	efi_guid_t guid;
	void *table;
	};

	#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)

	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;
	struct efi_simple_text_output_protocol *std_err;
	struct efi_runtime_services *runtime;
	struct efi_boot_services *boottime;
	unsigned long nr_tables;
	struct efi_configuration_table *tables;
	};

	#define LOADED_IMAGE_GUID \
	EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, \
	0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)

	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;

	/* Below are efi loader private fields */
	#ifdef CONFIG_EFI_LOADER
	efi_status_t exit_status;
	struct jmp_buf_data exit_jmp;
	#endif
	};

	#define DEVICE_PATH_GUID \
	EFI_GUID(0x09576e91, 0x6d3f, 0x11d2, \
	0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )

	#define DEVICE_PATH_TYPE_END 0x7f
	# define DEVICE_PATH_SUB_TYPE_END 0xff

	struct efi_device_path {
	u8 type;
	u8 sub_type;
	u16 length;
	};

	struct efi_mac_addr {
	u8 addr[32];
	};

	#define DEVICE_PATH_TYPE_MESSAGING_DEVICE 0x03
	# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b

	struct efi_device_path_mac_addr {
	struct efi_device_path dp;
	struct efi_mac_addr mac;
	u8 if_type;
	};

	#define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04
	# define DEVICE_PATH_SUB_TYPE_FILE_PATH 0x04

	struct efi_device_path_file_path {
	struct efi_device_path dp;
	u16 str[32];
	};

	#define BLOCK_IO_GUID \
	EFI_GUID(0x964e5b21, 0x6459, 0x11d2, \
	0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)

	struct efi_block_io_media
	{
	u32 media_id;
	char removable_media;
	char media_present;
	char logical_partition;
	char read_only;
	char write_caching;
	u8 pad[3];
	u32 block_size;
	u32 io_align;
	u8 pad2[4];
	u64 last_block;
	};

	struct efi_block_io {
	u64 revision;
	struct efi_block_io_media *media;
	efi_status_t (EFIAPI reset)(struct efi_block_io this,
	char extended_verification);
	efi_status_t (EFIAPI read_blocks)(struct efi_block_io this,
	u32 media_id, u64 lba, unsigned long buffer_size,
	void *buffer);
	efi_status_t (EFIAPI write_blocks)(struct efi_block_io this,
	u32 media_id, u64 lba, unsigned long buffer_size,
	void *buffer);
	efi_status_t (EFIAPI flush_blocks)(struct efi_block_io this);
	};

	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);
	efi_status_t (EFIAPI *test_string)(
	struct efi_simple_text_output_protocol *this,
	const unsigned short *str);
	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)(
	struct efi_simple_text_output_protocol *this,
	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;
	};

	#define CONSOLE_CONTROL_GUID \
	EFI_GUID(0xf42f7782, 0x12e, 0x4c12, \
	0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21)
	#define EFI_CONSOLE_MODE_TEXT 0
	#define EFI_CONSOLE_MODE_GFX 1

	struct efi_console_control_protocol
	{
	efi_status_t (EFIAPI *get_mode)(
	struct efi_console_control_protocol this, int mode,
	char uga_exists, char std_in_locked);
	efi_status_t (EFIAPI *set_mode)(
	struct efi_console_control_protocol *this, int mode);
	efi_status_t (EFIAPI *lock_std_in)(
	struct efi_console_control_protocol *this,
	uint16_t *password);
	};

	#define EFI_GOP_GUID \
	EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \
	0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)

	#define EFI_GOT_RGBA8 0
	#define EFI_GOT_BGRA8 1
	#define EFI_GOT_BITMASK 2

	struct efi_gop_mode_info
	{
	u32 version;
	u32 width;
	u32 height;
	u32 pixel_format;
	u32 pixel_bitmask[4];
	u32 pixels_per_scanline;
	};

	struct efi_gop_mode
	{
	u32 max_mode;
	u32 mode;
	struct efi_gop_mode_info *info;
	unsigned long info_size;
	efi_physical_addr_t fb_base;
	unsigned long fb_size;
	};

	#define EFI_BLT_VIDEO_FILL 0
	#define EFI_BLT_VIDEO_TO_BLT_BUFFER 1
	#define EFI_BLT_BUFFER_TO_VIDEO 2
	#define EFI_BLT_VIDEO_TO_VIDEO 3

	struct efi_gop
	{
	efi_status_t (EFIAPI query_mode)(struct efi_gop this, u32 mode_number,
	unsigned long *size_of_info,
	struct efi_gop_mode_info **info);
	efi_status_t (EFIAPI set_mode)(struct efi_gop this, u32 mode_number);
	efi_status_t (EFIAPI blt)(struct efi_gop this, void *buffer,
	unsigned long operation, unsigned long sx,
	unsigned long sy, unsigned long dx,
	unsigned long dy, unsigned long width,
	unsigned long height, unsigned long delta);
	struct efi_gop_mode *mode;
	};

	#define EFI_SIMPLE_NETWORK_GUID \
	EFI_GUID(0xa19832b9, 0xac25, 0x11d3, \
	0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

	struct efi_mac_address {
	char mac_addr[32];
	};

	struct efi_ip_address {
	u8 ip_addr[16];
	};

	enum efi_simple_network_state {
	EFI_NETWORK_STOPPED,
	EFI_NETWORK_STARTED,
	EFI_NETWORK_INITIALIZED,
	};

	struct efi_simple_network_mode {
	enum efi_simple_network_state state;
	u32 hwaddr_size;
	u32 media_header_size;
	u32 max_packet_size;
	u32 nvram_size;
	u32 nvram_access_size;
	u32 receive_filter_mask;
	u32 receive_filter_setting;
	u32 max_mcast_filter_count;
	u32 mcast_filter_count;
	struct efi_mac_address mcast_filter[16];
	struct efi_mac_address current_address;
	struct efi_mac_address broadcast_address;
	struct efi_mac_address permanent_address;
	u8 if_type;
	u8 mac_changeable;
	u8 multitx_supported;
	u8 media_present_supported;
	u8 media_present;
	};

	#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST 0x01,
	#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST 0x02,
	#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST 0x04,
	#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS 0x08,
	#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10,

	struct efi_simple_network
	{
	u64 revision;
	efi_status_t (EFIAPI start)(struct efi_simple_network this);
	efi_status_t (EFIAPI stop)(struct efi_simple_network this);
	efi_status_t (EFIAPI initialize)(struct efi_simple_network this,
	ulong extra_rx, ulong extra_tx);
	efi_status_t (EFIAPI reset)(struct efi_simple_network this,
	int extended_verification);
	efi_status_t (EFIAPI shutdown)(struct efi_simple_network this);
	efi_status_t (EFIAPI receive_filters)(struct efi_simple_network this,
	u32 enable, u32 disable, int reset_mcast_filter,
	ulong mcast_filter_count,
	struct efi_mac_address *mcast_filter);
	efi_status_t (EFIAPI station_address)(struct efi_simple_network this,
	int reset, struct efi_mac_address *new_mac);
	efi_status_t (EFIAPI statistics)(struct efi_simple_network this,
	int reset, ulong stat_size, void stat_table);
	efi_status_t (EFIAPI mcastiptomac)(struct efi_simple_network this,
	int ipv6, struct efi_ip_address *ip,
	struct efi_mac_address *mac);
	efi_status_t (EFIAPI nvdata)(struct efi_simple_network this,
	int read_write, ulong offset, ulong buffer_size,
	char *buffer);
	efi_status_t (EFIAPI get_status)(struct efi_simple_network this,
	u32 int_status, void *txbuf);
	efi_status_t (EFIAPI transmit)(struct efi_simple_network this,
	ulong header_size, ulong buffer_size, void *buffer,
	struct efi_mac_address *src_addr,
	struct efi_mac_address dest_addr, u16 protocol);
	efi_status_t (EFIAPI receive)(struct efi_simple_network this,
	ulong header_size, ulong buffer_size, void *buffer,
	struct efi_mac_address *src_addr,
	struct efi_mac_address dest_addr, u16 protocol);
	void (EFIAPI *waitforpacket)(void);
	struct efi_simple_network_mode *mode;
	};

	#define EFI_PXE_GUID \
	EFI_GUID(0x03c4e603, 0xac28, 0x11d3, \
	0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

	struct efi_pxe_packet {
	u8 packet[1472];
	};

	struct efi_pxe_mode
	{
	u8 unused[52];
	struct efi_pxe_packet dhcp_discover;
	struct efi_pxe_packet dhcp_ack;
	struct efi_pxe_packet proxy_offer;
	struct efi_pxe_packet pxe_discover;
	struct efi_pxe_packet pxe_reply;
	};

	struct efi_pxe {
	u64 rev;
	void (EFIAPI *start)(void);
	void (EFIAPI *stop)(void);
	void (EFIAPI *dhcp)(void);
	void (EFIAPI *discover)(void);
	void (EFIAPI *mftp)(void);
	void (EFIAPI *udpwrite)(void);
	void (EFIAPI *udpread)(void);
	void (EFIAPI *setipfilter)(void);
	void (EFIAPI *arp)(void);
	void (EFIAPI *setparams)(void);
	void (EFIAPI *setstationip)(void);
	void (EFIAPI *setpackets)(void);
	struct efi_pxe_mode *mode;
	};

	#endif