xref: /openbmc/u-boot/include/efi_api.h (revision bb4059a5)
1 /*
2  * Extensible Firmware Interface
3  * Based on 'Extensible Firmware Interface Specification' version 0.9,
4  * April 30, 1999
5  *
6  * Copyright (C) 1999 VA Linux Systems
7  * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
8  * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co.
9  *	David Mosberger-Tang <davidm@hpl.hp.com>
10  *	Stephane Eranian <eranian@hpl.hp.com>
11  *
12  * From include/linux/efi.h in kernel 4.1 with some additions/subtractions
13  */
14 
15 #ifndef _EFI_API_H
16 #define _EFI_API_H
17 
18 #include <efi.h>
19 
20 #ifdef CONFIG_EFI_LOADER
21 #include <asm/setjmp.h>
22 #endif
23 
24 /* Types and defines for EFI CreateEvent */
25 enum efi_timer_delay {
26 	EFI_TIMER_STOP = 0,
27 	EFI_TIMER_PERIODIC = 1,
28 	EFI_TIMER_RELATIVE = 2
29 };
30 
31 #define efi_uintn_t size_t
32 typedef uint16_t *efi_string_t;
33 
34 #define EVT_TIMER				0x80000000
35 #define EVT_RUNTIME				0x40000000
36 #define EVT_NOTIFY_WAIT				0x00000100
37 #define EVT_NOTIFY_SIGNAL			0x00000200
38 #define EVT_SIGNAL_EXIT_BOOT_SERVICES		0x00000201
39 #define EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE	0x60000202
40 
41 #define TPL_APPLICATION		0x04
42 #define TPL_CALLBACK		0x08
43 #define TPL_NOTIFY		0x10
44 #define TPL_HIGH_LEVEL		0x1F
45 
46 struct efi_event;
47 
48 /* EFI Boot Services table */
49 struct efi_boot_services {
50 	struct efi_table_hdr hdr;
51 	efi_status_t (EFIAPI *raise_tpl)(efi_uintn_t new_tpl);
52 	void (EFIAPI *restore_tpl)(efi_uintn_t old_tpl);
53 
54 	efi_status_t (EFIAPI *allocate_pages)(int, int, efi_uintn_t,
55 					      efi_physical_addr_t *);
56 	efi_status_t (EFIAPI *free_pages)(efi_physical_addr_t, efi_uintn_t);
57 	efi_status_t (EFIAPI *get_memory_map)(efi_uintn_t *memory_map_size,
58 					      struct efi_mem_desc *desc,
59 					      efi_uintn_t *key,
60 					      efi_uintn_t *desc_size,
61 					      u32 *desc_version);
62 	efi_status_t (EFIAPI *allocate_pool)(int, efi_uintn_t, void **);
63 	efi_status_t (EFIAPI *free_pool)(void *);
64 
65 	efi_status_t (EFIAPI *create_event)(uint32_t type,
66 			efi_uintn_t notify_tpl,
67 			void (EFIAPI *notify_function) (
68 					struct efi_event *event,
69 					void *context),
70 			void *notify_context, struct efi_event **event);
71 	efi_status_t (EFIAPI *set_timer)(struct efi_event *event,
72 					 enum efi_timer_delay type,
73 					 uint64_t trigger_time);
74 	efi_status_t (EFIAPI *wait_for_event)(efi_uintn_t number_of_events,
75 					      struct efi_event **event,
76 					      efi_uintn_t *index);
77 	efi_status_t (EFIAPI *signal_event)(struct efi_event *event);
78 	efi_status_t (EFIAPI *close_event)(struct efi_event *event);
79 	efi_status_t (EFIAPI *check_event)(struct efi_event *event);
80 #define EFI_NATIVE_INTERFACE	0x00000000
81 	efi_status_t (EFIAPI *install_protocol_interface)(
82 			void **handle, const efi_guid_t *protocol,
83 			int protocol_interface_type, void *protocol_interface);
84 	efi_status_t (EFIAPI *reinstall_protocol_interface)(
85 			void *handle, const efi_guid_t *protocol,
86 			void *old_interface, void *new_interface);
87 	efi_status_t (EFIAPI *uninstall_protocol_interface)(
88 			efi_handle_t handle, const efi_guid_t *protocol,
89 			void *protocol_interface);
90 	efi_status_t (EFIAPI *handle_protocol)(
91 			efi_handle_t handle, const efi_guid_t *protocol,
92 			void **protocol_interface);
93 	void *reserved;
94 	efi_status_t (EFIAPI *register_protocol_notify)(
95 			const efi_guid_t *protocol, struct efi_event *event,
96 			void **registration);
97 	efi_status_t (EFIAPI *locate_handle)(
98 			enum efi_locate_search_type search_type,
99 			const efi_guid_t *protocol, void *search_key,
100 			efi_uintn_t *buffer_size, efi_handle_t *buffer);
101 	efi_status_t (EFIAPI *locate_device_path)(const efi_guid_t *protocol,
102 			struct efi_device_path **device_path,
103 			efi_handle_t *device);
104 	efi_status_t (EFIAPI *install_configuration_table)(
105 			efi_guid_t *guid, void *table);
106 
107 	efi_status_t (EFIAPI *load_image)(bool boot_policiy,
108 			efi_handle_t parent_image,
109 			struct efi_device_path *file_path, void *source_buffer,
110 			unsigned long source_size, efi_handle_t *image);
111 	efi_status_t (EFIAPI *start_image)(efi_handle_t handle,
112 					   unsigned long *exitdata_size,
113 					   s16 **exitdata);
114 	efi_status_t (EFIAPI *exit)(efi_handle_t handle,
115 				    efi_status_t exit_status,
116 				    unsigned long exitdata_size, s16 *exitdata);
117 	efi_status_t (EFIAPI *unload_image)(efi_handle_t image_handle);
118 	efi_status_t (EFIAPI *exit_boot_services)(efi_handle_t, unsigned long);
119 
120 	efi_status_t (EFIAPI *get_next_monotonic_count)(u64 *count);
121 	efi_status_t (EFIAPI *stall)(unsigned long usecs);
122 	efi_status_t (EFIAPI *set_watchdog_timer)(unsigned long timeout,
123 			uint64_t watchdog_code, unsigned long data_size,
124 			uint16_t *watchdog_data);
125 	efi_status_t(EFIAPI *connect_controller)(efi_handle_t controller_handle,
126 			efi_handle_t *driver_image_handle,
127 			struct efi_device_path *remaining_device_path,
128 			bool recursive);
129 	efi_status_t (EFIAPI *disconnect_controller)(
130 			efi_handle_t controller_handle,
131 			efi_handle_t driver_image_handle,
132 			efi_handle_t child_handle);
133 #define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL  0x00000001
134 #define EFI_OPEN_PROTOCOL_GET_PROTOCOL        0x00000002
135 #define EFI_OPEN_PROTOCOL_TEST_PROTOCOL       0x00000004
136 #define EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008
137 #define EFI_OPEN_PROTOCOL_BY_DRIVER           0x00000010
138 #define EFI_OPEN_PROTOCOL_EXCLUSIVE           0x00000020
139 	efi_status_t (EFIAPI *open_protocol)(efi_handle_t handle,
140 			const efi_guid_t *protocol, void **interface,
141 			efi_handle_t agent_handle,
142 			efi_handle_t controller_handle, u32 attributes);
143 	efi_status_t (EFIAPI *close_protocol)(
144 			efi_handle_t handle, const efi_guid_t *protocol,
145 			efi_handle_t agent_handle,
146 			efi_handle_t controller_handle);
147 	efi_status_t(EFIAPI *open_protocol_information)(efi_handle_t handle,
148 			const efi_guid_t *protocol,
149 			struct efi_open_protocol_info_entry **entry_buffer,
150 			efi_uintn_t *entry_count);
151 	efi_status_t (EFIAPI *protocols_per_handle)(efi_handle_t handle,
152 			efi_guid_t ***protocol_buffer,
153 			efi_uintn_t *protocols_buffer_count);
154 	efi_status_t (EFIAPI *locate_handle_buffer) (
155 			enum efi_locate_search_type search_type,
156 			const efi_guid_t *protocol, void *search_key,
157 			efi_uintn_t *no_handles, efi_handle_t **buffer);
158 	efi_status_t (EFIAPI *locate_protocol)(const efi_guid_t *protocol,
159 			void *registration, void **protocol_interface);
160 	efi_status_t (EFIAPI *install_multiple_protocol_interfaces)(
161 			void **handle, ...);
162 	efi_status_t (EFIAPI *uninstall_multiple_protocol_interfaces)(
163 			void *handle, ...);
164 	efi_status_t (EFIAPI *calculate_crc32)(void *data,
165 			unsigned long data_size, uint32_t *crc32);
166 	void (EFIAPI *copy_mem)(void *destination, const void *source,
167 			size_t length);
168 	void (EFIAPI *set_mem)(void *buffer, size_t size, uint8_t value);
169 	efi_status_t (EFIAPI *create_event_ex)(
170 				uint32_t type, efi_uintn_t notify_tpl,
171 				void (EFIAPI *notify_function) (
172 					struct efi_event *event,
173 					void *context),
174 				void *notify_context,
175 				efi_guid_t *event_group,
176 				struct efi_event **event);
177 };
178 
179 /* Types and defines for EFI ResetSystem */
180 enum efi_reset_type {
181 	EFI_RESET_COLD = 0,
182 	EFI_RESET_WARM = 1,
183 	EFI_RESET_SHUTDOWN = 2
184 };
185 
186 /* EFI Runtime Services table */
187 #define EFI_RUNTIME_SERVICES_SIGNATURE	0x5652453544e5552ULL
188 #define EFI_RUNTIME_SERVICES_REVISION	0x00010000
189 
190 #define CAPSULE_FLAGS_PERSIST_ACROSS_RESET	0x00010000
191 #define CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE	0x00020000
192 #define CAPSULE_FLAGS_INITIATE_RESET		0x00040000
193 
194 struct efi_capsule_header {
195 	efi_guid_t *capsule_guid;
196 	u32 header_size;
197 	u32 flags;
198 	u32 capsule_image_size;
199 };
200 
201 struct efi_runtime_services {
202 	struct efi_table_hdr hdr;
203 	efi_status_t (EFIAPI *get_time)(struct efi_time *time,
204 			struct efi_time_cap *capabilities);
205 	efi_status_t (EFIAPI *set_time)(struct efi_time *time);
206 	efi_status_t (EFIAPI *get_wakeup_time)(char *enabled, char *pending,
207 			struct efi_time *time);
208 	efi_status_t (EFIAPI *set_wakeup_time)(char enabled,
209 			struct efi_time *time);
210 	efi_status_t (EFIAPI *set_virtual_address_map)(
211 			unsigned long memory_map_size,
212 			unsigned long descriptor_size,
213 			uint32_t descriptor_version,
214 			struct efi_mem_desc *virtmap);
215 	efi_status_t (*convert_pointer)(unsigned long dbg, void **address);
216 	efi_status_t (EFIAPI *get_variable)(s16 *variable_name,
217 			efi_guid_t *vendor, u32 *attributes,
218 			unsigned long *data_size, void *data);
219 	efi_status_t (EFIAPI *get_next_variable)(
220 			unsigned long *variable_name_size,
221 			s16 *variable_name, efi_guid_t *vendor);
222 	efi_status_t (EFIAPI *set_variable)(s16 *variable_name,
223 			efi_guid_t *vendor, u32 attributes,
224 			unsigned long data_size, void *data);
225 	efi_status_t (EFIAPI *get_next_high_mono_count)(
226 			uint32_t *high_count);
227 	void (EFIAPI *reset_system)(enum efi_reset_type reset_type,
228 				    efi_status_t reset_status,
229 				    unsigned long data_size, void *reset_data);
230 	efi_status_t (EFIAPI *update_capsule)(
231 			struct efi_capsule_header **capsule_header_array,
232 			efi_uintn_t capsule_count,
233 			u64 scatter_gather_list);
234 	efi_status_t (EFIAPI *query_capsule_caps)(
235 			struct efi_capsule_header **capsule_header_array,
236 			efi_uintn_t capsule_count,
237 			u64 maximum_capsule_size,
238 			u32 reset_type);
239 	efi_status_t (EFIAPI *query_variable_info)(
240 			u32 attributes,
241 			u64 maximum_variable_storage_size,
242 			u64 remaining_variable_storage_size,
243 			u64 maximum_variable_size);
244 };
245 
246 /* EFI Configuration Table and GUID definitions */
247 #define NULL_GUID \
248 	EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
249 		 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
250 
251 #define EFI_GLOBAL_VARIABLE_GUID \
252 	EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, \
253 		 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
254 
255 #define LOADED_IMAGE_PROTOCOL_GUID \
256 	EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, \
257 		 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
258 
259 #define EFI_FDT_GUID \
260 	EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, \
261 		 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)
262 
263 #define SMBIOS_TABLE_GUID \
264 	EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3,  \
265 		 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
266 
267 struct efi_configuration_table
268 {
269 	efi_guid_t guid;
270 	void *table;
271 };
272 
273 #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
274 
275 struct efi_system_table {
276 	struct efi_table_hdr hdr;
277 	unsigned long fw_vendor;   /* physical addr of wchar_t vendor string */
278 	u32 fw_revision;
279 	efi_handle_t con_in_handle;
280 	struct efi_simple_input_interface *con_in;
281 	efi_handle_t con_out_handle;
282 	struct efi_simple_text_output_protocol *con_out;
283 	efi_handle_t stderr_handle;
284 	struct efi_simple_text_output_protocol *std_err;
285 	struct efi_runtime_services *runtime;
286 	struct efi_boot_services *boottime;
287 	efi_uintn_t nr_tables;
288 	struct efi_configuration_table *tables;
289 };
290 
291 #define LOADED_IMAGE_GUID \
292 	EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, \
293 		 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
294 
295 struct efi_loaded_image {
296 	u32 revision;
297 	void *parent_handle;
298 	struct efi_system_table *system_table;
299 	void *device_handle;
300 	void *file_path;
301 	void *reserved;
302 	u32 load_options_size;
303 	void *load_options;
304 	void *image_base;
305 	aligned_u64 image_size;
306 	unsigned int image_code_type;
307 	unsigned int image_data_type;
308 	unsigned long unload;
309 
310 	/* Below are efi loader private fields */
311 #ifdef CONFIG_EFI_LOADER
312 	efi_status_t exit_status;
313 	struct jmp_buf_data exit_jmp;
314 #endif
315 };
316 
317 #define DEVICE_PATH_GUID \
318 	EFI_GUID(0x09576e91, 0x6d3f, 0x11d2, \
319 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
320 
321 #define DEVICE_PATH_TYPE_END			0x7f
322 #  define DEVICE_PATH_SUB_TYPE_END		0xff
323 
324 struct efi_device_path {
325 	u8 type;
326 	u8 sub_type;
327 	u16 length;
328 } __packed;
329 
330 struct efi_mac_addr {
331 	u8 addr[32];
332 } __packed;
333 
334 #define DEVICE_PATH_TYPE_HARDWARE_DEVICE	0x01
335 #  define DEVICE_PATH_SUB_TYPE_MEMORY		0x03
336 #  define DEVICE_PATH_SUB_TYPE_VENDOR		0x04
337 
338 struct efi_device_path_memory {
339 	struct efi_device_path dp;
340 	u32 memory_type;
341 	u64 start_address;
342 	u64 end_address;
343 } __packed;
344 
345 struct efi_device_path_vendor {
346 	struct efi_device_path dp;
347 	efi_guid_t guid;
348 	u8 vendor_data[];
349 } __packed;
350 
351 #define DEVICE_PATH_TYPE_ACPI_DEVICE		0x02
352 #  define DEVICE_PATH_SUB_TYPE_ACPI_DEVICE	0x01
353 
354 #define EFI_PNP_ID(ID)				(u32)(((ID) << 16) | 0x41D0)
355 #define EISA_PNP_ID(ID)				EFI_PNP_ID(ID)
356 #define EISA_PNP_NUM(ID)			((ID) >> 16)
357 
358 struct efi_device_path_acpi_path {
359 	struct efi_device_path dp;
360 	u32 hid;
361 	u32 uid;
362 } __packed;
363 
364 #define DEVICE_PATH_TYPE_MESSAGING_DEVICE	0x03
365 #  define DEVICE_PATH_SUB_TYPE_MSG_ATAPI	0x01
366 #  define DEVICE_PATH_SUB_TYPE_MSG_SCSI		0x02
367 #  define DEVICE_PATH_SUB_TYPE_MSG_USB		0x05
368 #  define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR	0x0b
369 #  define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS	0x0f
370 #  define DEVICE_PATH_SUB_TYPE_MSG_SD		0x1a
371 #  define DEVICE_PATH_SUB_TYPE_MSG_MMC		0x1d
372 
373 struct efi_device_path_atapi {
374 	struct efi_device_path dp;
375 	u8 primary_secondary;
376 	u8 slave_master;
377 	u16 logical_unit_number;
378 } __packed;
379 
380 struct efi_device_path_scsi {
381 	struct efi_device_path dp;
382 	u16 target_id;
383 	u16 logical_unit_number;
384 } __packed;
385 
386 struct efi_device_path_usb {
387 	struct efi_device_path dp;
388 	u8 parent_port_number;
389 	u8 usb_interface;
390 } __packed;
391 
392 struct efi_device_path_mac_addr {
393 	struct efi_device_path dp;
394 	struct efi_mac_addr mac;
395 	u8 if_type;
396 } __packed;
397 
398 struct efi_device_path_usb_class {
399 	struct efi_device_path dp;
400 	u16 vendor_id;
401 	u16 product_id;
402 	u8 device_class;
403 	u8 device_subclass;
404 	u8 device_protocol;
405 } __packed;
406 
407 struct efi_device_path_sd_mmc_path {
408 	struct efi_device_path dp;
409 	u8 slot_number;
410 } __packed;
411 
412 #define DEVICE_PATH_TYPE_MEDIA_DEVICE		0x04
413 #  define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH	0x01
414 #  define DEVICE_PATH_SUB_TYPE_CDROM_PATH	0x02
415 #  define DEVICE_PATH_SUB_TYPE_FILE_PATH	0x04
416 
417 struct efi_device_path_hard_drive_path {
418 	struct efi_device_path dp;
419 	u32 partition_number;
420 	u64 partition_start;
421 	u64 partition_end;
422 	u8 partition_signature[16];
423 	u8 partmap_type;
424 	u8 signature_type;
425 } __packed;
426 
427 struct efi_device_path_cdrom_path {
428 	struct efi_device_path dp;
429 	u32 boot_entry;
430 	u64 partition_start;
431 	u64 partition_end;
432 } __packed;
433 
434 struct efi_device_path_file_path {
435 	struct efi_device_path dp;
436 	u16 str[];
437 } __packed;
438 
439 #define BLOCK_IO_GUID \
440 	EFI_GUID(0x964e5b21, 0x6459, 0x11d2, \
441 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
442 
443 struct efi_block_io_media
444 {
445 	u32 media_id;
446 	char removable_media;
447 	char media_present;
448 	char logical_partition;
449 	char read_only;
450 	char write_caching;
451 	u8 pad[3];
452 	u32 block_size;
453 	u32 io_align;
454 	u8 pad2[4];
455 	u64 last_block;
456 	/* Added in revision 2 of the protocol */
457 	u64 lowest_aligned_lba;
458 	u32 logical_blocks_per_physical_block;
459 	/* Added in revision 3 of the protocol */
460 	u32 optimal_transfer_length_granualarity;
461 };
462 
463 #define EFI_BLOCK_IO_PROTOCOL_REVISION2	0x00020001
464 #define EFI_BLOCK_IO_PROTOCOL_REVISION3	0x0002001f
465 
466 struct efi_block_io {
467 	u64 revision;
468 	struct efi_block_io_media *media;
469 	efi_status_t (EFIAPI *reset)(struct efi_block_io *this,
470 			char extended_verification);
471 	efi_status_t (EFIAPI *read_blocks)(struct efi_block_io *this,
472 			u32 media_id, u64 lba, efi_uintn_t buffer_size,
473 			void *buffer);
474 	efi_status_t (EFIAPI *write_blocks)(struct efi_block_io *this,
475 			u32 media_id, u64 lba, efi_uintn_t buffer_size,
476 			void *buffer);
477 	efi_status_t (EFIAPI *flush_blocks)(struct efi_block_io *this);
478 };
479 
480 struct simple_text_output_mode {
481 	s32 max_mode;
482 	s32 mode;
483 	s32 attribute;
484 	s32 cursor_column;
485 	s32 cursor_row;
486 	bool cursor_visible;
487 };
488 
489 
490 #define EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID \
491 	EFI_GUID(0x387477c2, 0x69c7, 0x11d2, \
492 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
493 
494 #define EFI_BLACK                0x00
495 #define EFI_BLUE                 0x01
496 #define EFI_GREEN                0x02
497 #define EFI_CYAN                 0x03
498 #define EFI_RED                  0x04
499 #define EFI_MAGENTA              0x05
500 #define EFI_BROWN                0x06
501 #define EFI_LIGHTGRAY            0x07
502 #define EFI_BRIGHT               0x08
503 #define EFI_DARKGRAY             0x08
504 #define EFI_LIGHTBLUE            0x09
505 #define EFI_LIGHTGREEN           0x0a
506 #define EFI_LIGHTCYAN            0x0b
507 #define EFI_LIGHTRED             0x0c
508 #define EFI_LIGHTMAGENTA         0x0d
509 #define EFI_YELLOW               0x0e
510 #define EFI_WHITE                0x0f
511 #define EFI_BACKGROUND_BLACK     0x00
512 #define EFI_BACKGROUND_BLUE      0x10
513 #define EFI_BACKGROUND_GREEN     0x20
514 #define EFI_BACKGROUND_CYAN      0x30
515 #define EFI_BACKGROUND_RED       0x40
516 #define EFI_BACKGROUND_MAGENTA   0x50
517 #define EFI_BACKGROUND_BROWN     0x60
518 #define EFI_BACKGROUND_LIGHTGRAY 0x70
519 
520 /* extract foreground color from EFI attribute */
521 #define EFI_ATTR_FG(attr)        ((attr) & 0x07)
522 /* treat high bit of FG as bright/bold (similar to edk2) */
523 #define EFI_ATTR_BOLD(attr)      (((attr) >> 3) & 0x01)
524 /* extract background color from EFI attribute */
525 #define EFI_ATTR_BG(attr)        (((attr) >> 4) & 0x7)
526 
527 struct efi_simple_text_output_protocol {
528 	void *reset;
529 	efi_status_t (EFIAPI *output_string)(
530 			struct efi_simple_text_output_protocol *this,
531 			const efi_string_t str);
532 	efi_status_t (EFIAPI *test_string)(
533 			struct efi_simple_text_output_protocol *this,
534 			const efi_string_t str);
535 	efi_status_t(EFIAPI *query_mode)(
536 			struct efi_simple_text_output_protocol *this,
537 			unsigned long mode_number, unsigned long *columns,
538 			unsigned long *rows);
539 	efi_status_t(EFIAPI *set_mode)(
540 			struct efi_simple_text_output_protocol *this,
541 			unsigned long mode_number);
542 	efi_status_t(EFIAPI *set_attribute)(
543 			struct efi_simple_text_output_protocol *this,
544 			unsigned long attribute);
545 	efi_status_t(EFIAPI *clear_screen) (
546 			struct efi_simple_text_output_protocol *this);
547 	efi_status_t(EFIAPI *set_cursor_position) (
548 			struct efi_simple_text_output_protocol *this,
549 			unsigned long column, unsigned long row);
550 	efi_status_t(EFIAPI *enable_cursor)(
551 			struct efi_simple_text_output_protocol *this,
552 			bool enable);
553 	struct simple_text_output_mode *mode;
554 };
555 
556 struct efi_input_key {
557 	u16 scan_code;
558 	s16 unicode_char;
559 };
560 
561 #define EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID \
562 	EFI_GUID(0x387477c1, 0x69c7, 0x11d2, \
563 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
564 
565 struct efi_simple_input_interface {
566 	efi_status_t(EFIAPI *reset)(struct efi_simple_input_interface *this,
567 			bool ExtendedVerification);
568 	efi_status_t(EFIAPI *read_key_stroke)(
569 			struct efi_simple_input_interface *this,
570 			struct efi_input_key *key);
571 	struct efi_event *wait_for_key;
572 };
573 
574 #define CONSOLE_CONTROL_GUID \
575 	EFI_GUID(0xf42f7782, 0x12e, 0x4c12, \
576 		 0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21)
577 #define EFI_CONSOLE_MODE_TEXT	0
578 #define EFI_CONSOLE_MODE_GFX	1
579 
580 struct efi_console_control_protocol
581 {
582 	efi_status_t (EFIAPI *get_mode)(
583 			struct efi_console_control_protocol *this, int *mode,
584 			char *uga_exists, char *std_in_locked);
585 	efi_status_t (EFIAPI *set_mode)(
586 			struct efi_console_control_protocol *this, int mode);
587 	efi_status_t (EFIAPI *lock_std_in)(
588 			struct efi_console_control_protocol *this,
589 			uint16_t *password);
590 };
591 
592 #define EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID \
593 	EFI_GUID(0x8b843e20, 0x8132, 0x4852, \
594 		 0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c)
595 
596 struct efi_device_path_to_text_protocol
597 {
598 	uint16_t *(EFIAPI *convert_device_node_to_text)(
599 			struct efi_device_path *device_node,
600 			bool display_only,
601 			bool allow_shortcuts);
602 	uint16_t *(EFIAPI *convert_device_path_to_text)(
603 			struct efi_device_path *device_path,
604 			bool display_only,
605 			bool allow_shortcuts);
606 };
607 
608 #define EFI_GOP_GUID \
609 	EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \
610 		 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)
611 
612 #define EFI_GOT_RGBA8		0
613 #define EFI_GOT_BGRA8		1
614 #define EFI_GOT_BITMASK		2
615 
616 struct efi_gop_mode_info
617 {
618 	u32 version;
619 	u32 width;
620 	u32 height;
621 	u32 pixel_format;
622 	u32 pixel_bitmask[4];
623 	u32 pixels_per_scanline;
624 };
625 
626 struct efi_gop_mode
627 {
628 	u32 max_mode;
629 	u32 mode;
630 	struct efi_gop_mode_info *info;
631 	unsigned long info_size;
632 	efi_physical_addr_t fb_base;
633 	unsigned long fb_size;
634 };
635 
636 #define EFI_BLT_VIDEO_FILL		0
637 #define EFI_BLT_VIDEO_TO_BLT_BUFFER	1
638 #define EFI_BLT_BUFFER_TO_VIDEO		2
639 #define EFI_BLT_VIDEO_TO_VIDEO		3
640 
641 struct efi_gop
642 {
643 	efi_status_t (EFIAPI *query_mode)(struct efi_gop *this, u32 mode_number,
644 					  efi_uintn_t *size_of_info,
645 					  struct efi_gop_mode_info **info);
646 	efi_status_t (EFIAPI *set_mode)(struct efi_gop *this, u32 mode_number);
647 	efi_status_t (EFIAPI *blt)(struct efi_gop *this, void *buffer,
648 				   u32 operation, efi_uintn_t sx,
649 				   efi_uintn_t sy, efi_uintn_t dx,
650 				   efi_uintn_t dy, efi_uintn_t width,
651 				   efi_uintn_t height, efi_uintn_t delta);
652 	struct efi_gop_mode *mode;
653 };
654 
655 #define EFI_SIMPLE_NETWORK_GUID \
656 	EFI_GUID(0xa19832b9, 0xac25, 0x11d3, \
657 		 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
658 
659 struct efi_mac_address {
660 	char mac_addr[32];
661 };
662 
663 struct efi_ip_address {
664 	u8 ip_addr[16];
665 };
666 
667 enum efi_simple_network_state {
668 	EFI_NETWORK_STOPPED,
669 	EFI_NETWORK_STARTED,
670 	EFI_NETWORK_INITIALIZED,
671 };
672 
673 struct efi_simple_network_mode {
674 	enum efi_simple_network_state state;
675 	u32 hwaddr_size;
676 	u32 media_header_size;
677 	u32 max_packet_size;
678 	u32 nvram_size;
679 	u32 nvram_access_size;
680 	u32 receive_filter_mask;
681 	u32 receive_filter_setting;
682 	u32 max_mcast_filter_count;
683 	u32 mcast_filter_count;
684 	struct efi_mac_address mcast_filter[16];
685 	struct efi_mac_address current_address;
686 	struct efi_mac_address broadcast_address;
687 	struct efi_mac_address permanent_address;
688 	u8 if_type;
689 	u8 mac_changeable;
690 	u8 multitx_supported;
691 	u8 media_present_supported;
692 	u8 media_present;
693 };
694 
695 /* receive_filters bit mask */
696 #define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
697 #define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
698 #define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
699 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
700 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
701 
702 /* interrupt status bit mask */
703 #define EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT	0x01
704 #define EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT	0x02
705 #define EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT	0x04
706 #define EFI_SIMPLE_NETWORK_SOFTWARE_INTERRUPT	0x08
707 
708 /* revision of the simple network protocol */
709 #define EFI_SIMPLE_NETWORK_PROTOCOL_REVISION	0x00010000
710 
711 struct efi_simple_network
712 {
713 	u64 revision;
714 	efi_status_t (EFIAPI *start)(struct efi_simple_network *this);
715 	efi_status_t (EFIAPI *stop)(struct efi_simple_network *this);
716 	efi_status_t (EFIAPI *initialize)(struct efi_simple_network *this,
717 			ulong extra_rx, ulong extra_tx);
718 	efi_status_t (EFIAPI *reset)(struct efi_simple_network *this,
719 			int extended_verification);
720 	efi_status_t (EFIAPI *shutdown)(struct efi_simple_network *this);
721 	efi_status_t (EFIAPI *receive_filters)(struct efi_simple_network *this,
722 			u32 enable, u32 disable, int reset_mcast_filter,
723 			ulong mcast_filter_count,
724 			struct efi_mac_address *mcast_filter);
725 	efi_status_t (EFIAPI *station_address)(struct efi_simple_network *this,
726 			int reset, struct efi_mac_address *new_mac);
727 	efi_status_t (EFIAPI *statistics)(struct efi_simple_network *this,
728 			int reset, ulong *stat_size, void *stat_table);
729 	efi_status_t (EFIAPI *mcastiptomac)(struct efi_simple_network *this,
730 			int ipv6, struct efi_ip_address *ip,
731 			struct efi_mac_address *mac);
732 	efi_status_t (EFIAPI *nvdata)(struct efi_simple_network *this,
733 			int read_write, ulong offset, ulong buffer_size,
734 			char *buffer);
735 	efi_status_t (EFIAPI *get_status)(struct efi_simple_network *this,
736 			u32 *int_status, void **txbuf);
737 	efi_status_t (EFIAPI *transmit)(struct efi_simple_network *this,
738 			size_t header_size, size_t buffer_size, void *buffer,
739 			struct efi_mac_address *src_addr,
740 			struct efi_mac_address *dest_addr, u16 *protocol);
741 	efi_status_t (EFIAPI *receive)(struct efi_simple_network *this,
742 			size_t *header_size, size_t *buffer_size, void *buffer,
743 			struct efi_mac_address *src_addr,
744 			struct efi_mac_address *dest_addr, u16 *protocol);
745 	struct efi_event *wait_for_packet;
746 	struct efi_simple_network_mode *mode;
747 };
748 
749 #define EFI_PXE_GUID \
750 	EFI_GUID(0x03c4e603, 0xac28, 0x11d3, \
751 		 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
752 
753 struct efi_pxe_packet {
754 	u8 packet[1472];
755 };
756 
757 struct efi_pxe_mode
758 {
759 	u8 unused[52];
760 	struct efi_pxe_packet dhcp_discover;
761 	struct efi_pxe_packet dhcp_ack;
762 	struct efi_pxe_packet proxy_offer;
763 	struct efi_pxe_packet pxe_discover;
764 	struct efi_pxe_packet pxe_reply;
765 };
766 
767 struct efi_pxe {
768 	u64 rev;
769 	void (EFIAPI *start)(void);
770 	void (EFIAPI *stop)(void);
771 	void (EFIAPI *dhcp)(void);
772 	void (EFIAPI *discover)(void);
773 	void (EFIAPI *mftp)(void);
774 	void (EFIAPI *udpwrite)(void);
775 	void (EFIAPI *udpread)(void);
776 	void (EFIAPI *setipfilter)(void);
777 	void (EFIAPI *arp)(void);
778 	void (EFIAPI *setparams)(void);
779 	void (EFIAPI *setstationip)(void);
780 	void (EFIAPI *setpackets)(void);
781 	struct efi_pxe_mode *mode;
782 };
783 
784 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
785 	EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
786 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
787 #define EFI_FILE_PROTOCOL_REVISION 0x00010000
788 
789 struct efi_file_handle {
790 	u64 rev;
791 	efi_status_t (EFIAPI *open)(struct efi_file_handle *file,
792 			struct efi_file_handle **new_handle,
793 			s16 *file_name, u64 open_mode, u64 attributes);
794 	efi_status_t (EFIAPI *close)(struct efi_file_handle *file);
795 	efi_status_t (EFIAPI *delete)(struct efi_file_handle *file);
796 	efi_status_t (EFIAPI *read)(struct efi_file_handle *file,
797 			u64 *buffer_size, void *buffer);
798 	efi_status_t (EFIAPI *write)(struct efi_file_handle *file,
799 			u64 *buffer_size, void *buffer);
800 	efi_status_t (EFIAPI *getpos)(struct efi_file_handle *file,
801 			u64 *pos);
802 	efi_status_t (EFIAPI *setpos)(struct efi_file_handle *file,
803 			u64 pos);
804 	efi_status_t (EFIAPI *getinfo)(struct efi_file_handle *file,
805 			efi_guid_t *info_type, u64 *buffer_size, void *buffer);
806 	efi_status_t (EFIAPI *setinfo)(struct efi_file_handle *file,
807 			efi_guid_t *info_type, u64 buffer_size, void *buffer);
808 	efi_status_t (EFIAPI *flush)(struct efi_file_handle *file);
809 };
810 
811 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
812 	EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
813 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
814 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000
815 
816 struct efi_simple_file_system_protocol {
817 	u64 rev;
818 	efi_status_t (EFIAPI *open_volume)(struct efi_simple_file_system_protocol *this,
819 			struct efi_file_handle **root);
820 };
821 
822 #define EFI_FILE_INFO_GUID \
823 	EFI_GUID(0x9576e92, 0x6d3f, 0x11d2, \
824 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
825 
826 #define EFI_FILE_MODE_READ	0x0000000000000001
827 #define EFI_FILE_MODE_WRITE	0x0000000000000002
828 #define EFI_FILE_MODE_CREATE	0x8000000000000000
829 
830 #define EFI_FILE_READ_ONLY	0x0000000000000001
831 #define EFI_FILE_HIDDEN		0x0000000000000002
832 #define EFI_FILE_SYSTEM		0x0000000000000004
833 #define EFI_FILE_RESERVED	0x0000000000000008
834 #define EFI_FILE_DIRECTORY	0x0000000000000010
835 #define EFI_FILE_ARCHIVE	0x0000000000000020
836 #define EFI_FILE_VALID_ATTR	0x0000000000000037
837 
838 struct efi_file_info {
839 	u64 size;
840 	u64 file_size;
841 	u64 physical_size;
842 	struct efi_time create_time;
843 	struct efi_time last_access_time;
844 	struct efi_time modification_time;
845 	u64 attribute;
846 	s16 file_name[0];
847 };
848 
849 #define EFI_DRIVER_BINDING_PROTOCOL_GUID \
850 	EFI_GUID(0x18a031ab, 0xb443, 0x4d1a,\
851 		 0xa5, 0xc0, 0x0c, 0x09, 0x26, 0x1e, 0x9f, 0x71)
852 struct efi_driver_binding_protocol {
853 	efi_status_t (EFIAPI * supported)(
854 			struct efi_driver_binding_protocol *this,
855 			efi_handle_t controller_handle,
856 			struct efi_device_path *remaining_device_path);
857 	efi_status_t (EFIAPI * start)(
858 			struct efi_driver_binding_protocol *this,
859 			efi_handle_t controller_handle,
860 			struct efi_device_path *remaining_device_path);
861 	efi_status_t (EFIAPI * stop)(
862 			struct efi_driver_binding_protocol *this,
863 			efi_handle_t controller_handle,
864 			efi_uintn_t number_of_children,
865 			efi_handle_t *child_handle_buffer);
866 	u32 version;
867 	efi_handle_t image_handle;
868 	efi_handle_t driver_binding_handle;
869 };
870 
871 #endif
872