xref: /openbmc/u-boot/include/efi_api.h (revision 9c8979cd)
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 UINTN size_t
32 typedef long INTN;
33 typedef uint16_t *efi_string_t;
34 
35 #define EVT_TIMER				0x80000000
36 #define EVT_RUNTIME				0x40000000
37 #define EVT_NOTIFY_WAIT				0x00000100
38 #define EVT_NOTIFY_SIGNAL			0x00000200
39 #define EVT_SIGNAL_EXIT_BOOT_SERVICES		0x00000201
40 #define EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE	0x60000202
41 
42 #define TPL_APPLICATION		0x04
43 #define TPL_CALLBACK		0x08
44 #define TPL_NOTIFY		0x10
45 #define TPL_HIGH_LEVEL		0x1F
46 
47 struct efi_event;
48 
49 /* EFI Boot Services table */
50 struct efi_boot_services {
51 	struct efi_table_hdr hdr;
52 	efi_status_t (EFIAPI *raise_tpl)(UINTN new_tpl);
53 	void (EFIAPI *restore_tpl)(UINTN old_tpl);
54 
55 	efi_status_t (EFIAPI *allocate_pages)(int, int, unsigned long,
56 					      efi_physical_addr_t *);
57 	efi_status_t (EFIAPI *free_pages)(efi_physical_addr_t, unsigned long);
58 	efi_status_t (EFIAPI *get_memory_map)(unsigned long *memory_map_size,
59 			struct efi_mem_desc *desc, unsigned long *key,
60 			unsigned long *desc_size, u32 *desc_version);
61 	efi_status_t (EFIAPI *allocate_pool)(int, unsigned long, void **);
62 	efi_status_t (EFIAPI *free_pool)(void *);
63 
64 	efi_status_t (EFIAPI *create_event)(uint32_t type,
65 			UINTN notify_tpl,
66 			void (EFIAPI *notify_function) (
67 					struct efi_event *event,
68 					void *context),
69 			void *notify_context, struct efi_event **event);
70 	efi_status_t (EFIAPI *set_timer)(struct efi_event *event,
71 					 enum efi_timer_delay type,
72 					 uint64_t trigger_time);
73 	efi_status_t (EFIAPI *wait_for_event)(unsigned long number_of_events,
74 			struct efi_event **event, size_t *index);
75 	efi_status_t (EFIAPI *signal_event)(struct efi_event *event);
76 	efi_status_t (EFIAPI *close_event)(struct efi_event *event);
77 	efi_status_t (EFIAPI *check_event)(struct efi_event *event);
78 #define EFI_NATIVE_INTERFACE	0x00000000
79 	efi_status_t (EFIAPI *install_protocol_interface)(
80 			void **handle, const efi_guid_t *protocol,
81 			int protocol_interface_type, void *protocol_interface);
82 	efi_status_t (EFIAPI *reinstall_protocol_interface)(
83 			void *handle, const efi_guid_t *protocol,
84 			void *old_interface, void *new_interface);
85 	efi_status_t (EFIAPI *uninstall_protocol_interface)(void *handle,
86 			const efi_guid_t *protocol, void *protocol_interface);
87 	efi_status_t (EFIAPI *handle_protocol)(efi_handle_t,
88 					       const efi_guid_t *protocol,
89 					       void **protocol_interface);
90 	void *reserved;
91 	efi_status_t (EFIAPI *register_protocol_notify)(
92 			const efi_guid_t *protocol, struct efi_event *event,
93 			void **registration);
94 	efi_status_t (EFIAPI *locate_handle)(
95 			enum efi_locate_search_type search_type,
96 			const efi_guid_t *protocol, void *search_key,
97 			unsigned long *buffer_size, efi_handle_t *buffer);
98 	efi_status_t (EFIAPI *locate_device_path)(const efi_guid_t *protocol,
99 			struct efi_device_path **device_path,
100 			efi_handle_t *device);
101 	efi_status_t (EFIAPI *install_configuration_table)(
102 			efi_guid_t *guid, void *table);
103 
104 	efi_status_t (EFIAPI *load_image)(bool boot_policiy,
105 			efi_handle_t parent_image,
106 			struct efi_device_path *file_path, void *source_buffer,
107 			unsigned long source_size, efi_handle_t *image);
108 	efi_status_t (EFIAPI *start_image)(efi_handle_t handle,
109 					   unsigned long *exitdata_size,
110 					   s16 **exitdata);
111 	efi_status_t (EFIAPI *exit)(efi_handle_t handle,
112 				    efi_status_t exit_status,
113 				    unsigned long exitdata_size, s16 *exitdata);
114 	efi_status_t (EFIAPI *unload_image)(void *image_handle);
115 	efi_status_t (EFIAPI *exit_boot_services)(efi_handle_t, unsigned long);
116 
117 	efi_status_t (EFIAPI *get_next_monotonic_count)(u64 *count);
118 	efi_status_t (EFIAPI *stall)(unsigned long usecs);
119 	efi_status_t (EFIAPI *set_watchdog_timer)(unsigned long timeout,
120 			uint64_t watchdog_code, unsigned long data_size,
121 			uint16_t *watchdog_data);
122 	efi_status_t(EFIAPI *connect_controller)(efi_handle_t controller_handle,
123 			efi_handle_t *driver_image_handle,
124 			struct efi_device_path *remaining_device_path,
125 			bool recursive);
126 	efi_status_t (EFIAPI *disconnect_controller)(void *controller_handle,
127 			void *driver_image_handle, void *child_handle);
128 #define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL  0x00000001
129 #define EFI_OPEN_PROTOCOL_GET_PROTOCOL        0x00000002
130 #define EFI_OPEN_PROTOCOL_TEST_PROTOCOL       0x00000004
131 #define EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008
132 #define EFI_OPEN_PROTOCOL_BY_DRIVER           0x00000010
133 #define EFI_OPEN_PROTOCOL_EXCLUSIVE           0x00000020
134 	efi_status_t (EFIAPI *open_protocol)(efi_handle_t handle,
135 			const efi_guid_t *protocol, void **interface,
136 			efi_handle_t agent_handle,
137 			efi_handle_t controller_handle, u32 attributes);
138 	efi_status_t (EFIAPI *close_protocol)(void *handle,
139 			const efi_guid_t *protocol, void *agent_handle,
140 			void *controller_handle);
141 	efi_status_t(EFIAPI *open_protocol_information)(efi_handle_t handle,
142 			const efi_guid_t *protocol,
143 			struct efi_open_protocol_info_entry **entry_buffer,
144 			unsigned long *entry_count);
145 	efi_status_t (EFIAPI *protocols_per_handle)(efi_handle_t handle,
146 			efi_guid_t ***protocol_buffer,
147 			unsigned long *protocols_buffer_count);
148 	efi_status_t (EFIAPI *locate_handle_buffer) (
149 			enum efi_locate_search_type search_type,
150 			const efi_guid_t *protocol, void *search_key,
151 			unsigned long *no_handles, efi_handle_t **buffer);
152 	efi_status_t (EFIAPI *locate_protocol)(const efi_guid_t *protocol,
153 			void *registration, void **protocol_interface);
154 	efi_status_t (EFIAPI *install_multiple_protocol_interfaces)(
155 			void **handle, ...);
156 	efi_status_t (EFIAPI *uninstall_multiple_protocol_interfaces)(
157 			void *handle, ...);
158 	efi_status_t (EFIAPI *calculate_crc32)(void *data,
159 			unsigned long data_size, uint32_t *crc32);
160 	void (EFIAPI *copy_mem)(void *destination, const void *source,
161 			size_t length);
162 	void (EFIAPI *set_mem)(void *buffer, size_t size, uint8_t value);
163 	void *create_event_ex;
164 };
165 
166 /* Types and defines for EFI ResetSystem */
167 enum efi_reset_type {
168 	EFI_RESET_COLD = 0,
169 	EFI_RESET_WARM = 1,
170 	EFI_RESET_SHUTDOWN = 2
171 };
172 
173 /* EFI Runtime Services table */
174 #define EFI_RUNTIME_SERVICES_SIGNATURE	0x5652453544e5552ULL
175 #define EFI_RUNTIME_SERVICES_REVISION	0x00010000
176 
177 struct efi_runtime_services {
178 	struct efi_table_hdr hdr;
179 	efi_status_t (EFIAPI *get_time)(struct efi_time *time,
180 			struct efi_time_cap *capabilities);
181 	efi_status_t (EFIAPI *set_time)(struct efi_time *time);
182 	efi_status_t (EFIAPI *get_wakeup_time)(char *enabled, char *pending,
183 			struct efi_time *time);
184 	efi_status_t (EFIAPI *set_wakeup_time)(char enabled,
185 			struct efi_time *time);
186 	efi_status_t (EFIAPI *set_virtual_address_map)(
187 			unsigned long memory_map_size,
188 			unsigned long descriptor_size,
189 			uint32_t descriptor_version,
190 			struct efi_mem_desc *virtmap);
191 	efi_status_t (*convert_pointer)(unsigned long dbg, void **address);
192 	efi_status_t (EFIAPI *get_variable)(s16 *variable_name,
193 			efi_guid_t *vendor, u32 *attributes,
194 			unsigned long *data_size, void *data);
195 	efi_status_t (EFIAPI *get_next_variable)(
196 			unsigned long *variable_name_size,
197 			s16 *variable_name, efi_guid_t *vendor);
198 	efi_status_t (EFIAPI *set_variable)(s16 *variable_name,
199 			efi_guid_t *vendor, u32 attributes,
200 			unsigned long data_size, void *data);
201 	efi_status_t (EFIAPI *get_next_high_mono_count)(
202 			uint32_t *high_count);
203 	void (EFIAPI *reset_system)(enum efi_reset_type reset_type,
204 				    efi_status_t reset_status,
205 				    unsigned long data_size, void *reset_data);
206 	void *update_capsule;
207 	void *query_capsule_caps;
208 	void *query_variable_info;
209 };
210 
211 /* EFI Configuration Table and GUID definitions */
212 #define NULL_GUID \
213 	EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
214 		 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
215 
216 #define EFI_GLOBAL_VARIABLE_GUID \
217 	EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, \
218 		 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
219 
220 #define LOADED_IMAGE_PROTOCOL_GUID \
221 	EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, \
222 		 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
223 
224 #define EFI_FDT_GUID \
225 	EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5, \
226 		 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)
227 
228 #define SMBIOS_TABLE_GUID \
229 	EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3,  \
230 		 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
231 
232 struct efi_configuration_table
233 {
234 	efi_guid_t guid;
235 	void *table;
236 };
237 
238 #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
239 
240 struct efi_system_table {
241 	struct efi_table_hdr hdr;
242 	unsigned long fw_vendor;   /* physical addr of wchar_t vendor string */
243 	u32 fw_revision;
244 	unsigned long con_in_handle;
245 	struct efi_simple_input_interface *con_in;
246 	unsigned long con_out_handle;
247 	struct efi_simple_text_output_protocol *con_out;
248 	unsigned long stderr_handle;
249 	struct efi_simple_text_output_protocol *std_err;
250 	struct efi_runtime_services *runtime;
251 	struct efi_boot_services *boottime;
252 	unsigned long nr_tables;
253 	struct efi_configuration_table *tables;
254 };
255 
256 #define LOADED_IMAGE_GUID \
257 	EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, \
258 		 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
259 
260 struct efi_loaded_image {
261 	u32 revision;
262 	void *parent_handle;
263 	struct efi_system_table *system_table;
264 	void *device_handle;
265 	void *file_path;
266 	void *reserved;
267 	u32 load_options_size;
268 	void *load_options;
269 	void *image_base;
270 	aligned_u64 image_size;
271 	unsigned int image_code_type;
272 	unsigned int image_data_type;
273 	unsigned long unload;
274 
275 	/* Below are efi loader private fields */
276 #ifdef CONFIG_EFI_LOADER
277 	efi_status_t exit_status;
278 	struct jmp_buf_data exit_jmp;
279 #endif
280 };
281 
282 #define DEVICE_PATH_GUID \
283 	EFI_GUID(0x09576e91, 0x6d3f, 0x11d2, \
284 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
285 
286 #define DEVICE_PATH_TYPE_END			0x7f
287 #  define DEVICE_PATH_SUB_TYPE_END		0xff
288 
289 struct efi_device_path {
290 	u8 type;
291 	u8 sub_type;
292 	u16 length;
293 } __packed;
294 
295 struct efi_mac_addr {
296 	u8 addr[32];
297 } __packed;
298 
299 #define DEVICE_PATH_TYPE_HARDWARE_DEVICE	0x01
300 #  define DEVICE_PATH_SUB_TYPE_MEMORY		0x03
301 #  define DEVICE_PATH_SUB_TYPE_VENDOR		0x04
302 
303 struct efi_device_path_memory {
304 	struct efi_device_path dp;
305 	u32 memory_type;
306 	u64 start_address;
307 	u64 end_address;
308 } __packed;
309 
310 struct efi_device_path_vendor {
311 	struct efi_device_path dp;
312 	efi_guid_t guid;
313 	u8 vendor_data[];
314 } __packed;
315 
316 #define DEVICE_PATH_TYPE_ACPI_DEVICE		0x02
317 #  define DEVICE_PATH_SUB_TYPE_ACPI_DEVICE	0x01
318 
319 #define EFI_PNP_ID(ID)				(u32)(((ID) << 16) | 0x41D0)
320 #define EISA_PNP_ID(ID)				EFI_PNP_ID(ID)
321 #define EISA_PNP_NUM(ID)			((ID) >> 16)
322 
323 struct efi_device_path_acpi_path {
324 	struct efi_device_path dp;
325 	u32 hid;
326 	u32 uid;
327 } __packed;
328 
329 #define DEVICE_PATH_TYPE_MESSAGING_DEVICE	0x03
330 #  define DEVICE_PATH_SUB_TYPE_MSG_USB		0x05
331 #  define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR	0x0b
332 #  define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS	0x0f
333 #  define DEVICE_PATH_SUB_TYPE_MSG_SD		0x1a
334 #  define DEVICE_PATH_SUB_TYPE_MSG_MMC		0x1d
335 
336 struct efi_device_path_usb {
337 	struct efi_device_path dp;
338 	u8 parent_port_number;
339 	u8 usb_interface;
340 } __packed;
341 
342 struct efi_device_path_mac_addr {
343 	struct efi_device_path dp;
344 	struct efi_mac_addr mac;
345 	u8 if_type;
346 } __packed;
347 
348 struct efi_device_path_usb_class {
349 	struct efi_device_path dp;
350 	u16 vendor_id;
351 	u16 product_id;
352 	u8 device_class;
353 	u8 device_subclass;
354 	u8 device_protocol;
355 } __packed;
356 
357 struct efi_device_path_sd_mmc_path {
358 	struct efi_device_path dp;
359 	u8 slot_number;
360 } __packed;
361 
362 #define DEVICE_PATH_TYPE_MEDIA_DEVICE		0x04
363 #  define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH	0x01
364 #  define DEVICE_PATH_SUB_TYPE_CDROM_PATH	0x02
365 #  define DEVICE_PATH_SUB_TYPE_FILE_PATH	0x04
366 
367 struct efi_device_path_hard_drive_path {
368 	struct efi_device_path dp;
369 	u32 partition_number;
370 	u64 partition_start;
371 	u64 partition_end;
372 	u8 partition_signature[16];
373 	u8 partmap_type;
374 	u8 signature_type;
375 } __packed;
376 
377 struct efi_device_path_cdrom_path {
378 	struct efi_device_path dp;
379 	u32 boot_entry;
380 	u64 partition_start;
381 	u64 partition_end;
382 } __packed;
383 
384 struct efi_device_path_file_path {
385 	struct efi_device_path dp;
386 	u16 str[];
387 } __packed;
388 
389 #define BLOCK_IO_GUID \
390 	EFI_GUID(0x964e5b21, 0x6459, 0x11d2, \
391 		 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
392 
393 struct efi_block_io_media
394 {
395 	u32 media_id;
396 	char removable_media;
397 	char media_present;
398 	char logical_partition;
399 	char read_only;
400 	char write_caching;
401 	u8 pad[3];
402 	u32 block_size;
403 	u32 io_align;
404 	u8 pad2[4];
405 	u64 last_block;
406 };
407 
408 struct efi_block_io {
409 	u64 revision;
410 	struct efi_block_io_media *media;
411 	efi_status_t (EFIAPI *reset)(struct efi_block_io *this,
412 			char extended_verification);
413 	efi_status_t (EFIAPI *read_blocks)(struct efi_block_io *this,
414 			u32 media_id, u64 lba, unsigned long buffer_size,
415 			void *buffer);
416 	efi_status_t (EFIAPI *write_blocks)(struct efi_block_io *this,
417 			u32 media_id, u64 lba, unsigned long buffer_size,
418 			void *buffer);
419 	efi_status_t (EFIAPI *flush_blocks)(struct efi_block_io *this);
420 };
421 
422 struct simple_text_output_mode {
423 	s32 max_mode;
424 	s32 mode;
425 	s32 attribute;
426 	s32 cursor_column;
427 	s32 cursor_row;
428 	bool cursor_visible;
429 };
430 
431 
432 #define EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL_GUID \
433 	EFI_GUID(0x387477c2, 0x69c7, 0x11d2, \
434 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
435 
436 #define EFI_BLACK                0x00
437 #define EFI_BLUE                 0x01
438 #define EFI_GREEN                0x02
439 #define EFI_CYAN                 0x03
440 #define EFI_RED                  0x04
441 #define EFI_MAGENTA              0x05
442 #define EFI_BROWN                0x06
443 #define EFI_LIGHTGRAY            0x07
444 #define EFI_BRIGHT               0x08
445 #define EFI_DARKGRAY             0x08
446 #define EFI_LIGHTBLUE            0x09
447 #define EFI_LIGHTGREEN           0x0a
448 #define EFI_LIGHTCYAN            0x0b
449 #define EFI_LIGHTRED             0x0c
450 #define EFI_LIGHTMAGENTA         0x0d
451 #define EFI_YELLOW               0x0e
452 #define EFI_WHITE                0x0f
453 #define EFI_BACKGROUND_BLACK     0x00
454 #define EFI_BACKGROUND_BLUE      0x10
455 #define EFI_BACKGROUND_GREEN     0x20
456 #define EFI_BACKGROUND_CYAN      0x30
457 #define EFI_BACKGROUND_RED       0x40
458 #define EFI_BACKGROUND_MAGENTA   0x50
459 #define EFI_BACKGROUND_BROWN     0x60
460 #define EFI_BACKGROUND_LIGHTGRAY 0x70
461 
462 /* extract foreground color from EFI attribute */
463 #define EFI_ATTR_FG(attr)        ((attr) & 0x07)
464 /* treat high bit of FG as bright/bold (similar to edk2) */
465 #define EFI_ATTR_BOLD(attr)      (((attr) >> 3) & 0x01)
466 /* extract background color from EFI attribute */
467 #define EFI_ATTR_BG(attr)        (((attr) >> 4) & 0x7)
468 
469 struct efi_simple_text_output_protocol {
470 	void *reset;
471 	efi_status_t (EFIAPI *output_string)(
472 			struct efi_simple_text_output_protocol *this,
473 			const efi_string_t str);
474 	efi_status_t (EFIAPI *test_string)(
475 			struct efi_simple_text_output_protocol *this,
476 			const efi_string_t str);
477 	efi_status_t(EFIAPI *query_mode)(
478 			struct efi_simple_text_output_protocol *this,
479 			unsigned long mode_number, unsigned long *columns,
480 			unsigned long *rows);
481 	efi_status_t(EFIAPI *set_mode)(
482 			struct efi_simple_text_output_protocol *this,
483 			unsigned long mode_number);
484 	efi_status_t(EFIAPI *set_attribute)(
485 			struct efi_simple_text_output_protocol *this,
486 			unsigned long attribute);
487 	efi_status_t(EFIAPI *clear_screen) (
488 			struct efi_simple_text_output_protocol *this);
489 	efi_status_t(EFIAPI *set_cursor_position) (
490 			struct efi_simple_text_output_protocol *this,
491 			unsigned long column, unsigned long row);
492 	efi_status_t(EFIAPI *enable_cursor)(
493 			struct efi_simple_text_output_protocol *this,
494 			bool enable);
495 	struct simple_text_output_mode *mode;
496 };
497 
498 struct efi_input_key {
499 	u16 scan_code;
500 	s16 unicode_char;
501 };
502 
503 #define EFI_SIMPLE_TEXT_INPUT_PROTOCOL_GUID \
504 	EFI_GUID(0x387477c1, 0x69c7, 0x11d2, \
505 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
506 
507 struct efi_simple_input_interface {
508 	efi_status_t(EFIAPI *reset)(struct efi_simple_input_interface *this,
509 			bool ExtendedVerification);
510 	efi_status_t(EFIAPI *read_key_stroke)(
511 			struct efi_simple_input_interface *this,
512 			struct efi_input_key *key);
513 	struct efi_event *wait_for_key;
514 };
515 
516 #define CONSOLE_CONTROL_GUID \
517 	EFI_GUID(0xf42f7782, 0x12e, 0x4c12, \
518 		 0x99, 0x56, 0x49, 0xf9, 0x43, 0x4, 0xf7, 0x21)
519 #define EFI_CONSOLE_MODE_TEXT	0
520 #define EFI_CONSOLE_MODE_GFX	1
521 
522 struct efi_console_control_protocol
523 {
524 	efi_status_t (EFIAPI *get_mode)(
525 			struct efi_console_control_protocol *this, int *mode,
526 			char *uga_exists, char *std_in_locked);
527 	efi_status_t (EFIAPI *set_mode)(
528 			struct efi_console_control_protocol *this, int mode);
529 	efi_status_t (EFIAPI *lock_std_in)(
530 			struct efi_console_control_protocol *this,
531 			uint16_t *password);
532 };
533 
534 #define EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID \
535 	EFI_GUID(0x8b843e20, 0x8132, 0x4852, \
536 		 0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c)
537 
538 struct efi_device_path_to_text_protocol
539 {
540 	uint16_t *(EFIAPI *convert_device_node_to_text)(
541 			struct efi_device_path *device_node,
542 			bool display_only,
543 			bool allow_shortcuts);
544 	uint16_t *(EFIAPI *convert_device_path_to_text)(
545 			struct efi_device_path *device_path,
546 			bool display_only,
547 			bool allow_shortcuts);
548 };
549 
550 #define EFI_GOP_GUID \
551 	EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \
552 		 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)
553 
554 #define EFI_GOT_RGBA8		0
555 #define EFI_GOT_BGRA8		1
556 #define EFI_GOT_BITMASK		2
557 
558 struct efi_gop_mode_info
559 {
560 	u32 version;
561 	u32 width;
562 	u32 height;
563 	u32 pixel_format;
564 	u32 pixel_bitmask[4];
565 	u32 pixels_per_scanline;
566 };
567 
568 struct efi_gop_mode
569 {
570 	u32 max_mode;
571 	u32 mode;
572 	struct efi_gop_mode_info *info;
573 	unsigned long info_size;
574 	efi_physical_addr_t fb_base;
575 	unsigned long fb_size;
576 };
577 
578 #define EFI_BLT_VIDEO_FILL		0
579 #define EFI_BLT_VIDEO_TO_BLT_BUFFER	1
580 #define EFI_BLT_BUFFER_TO_VIDEO		2
581 #define EFI_BLT_VIDEO_TO_VIDEO		3
582 
583 struct efi_gop
584 {
585 	efi_status_t (EFIAPI *query_mode)(struct efi_gop *this, u32 mode_number,
586 					  unsigned long *size_of_info,
587 					  struct efi_gop_mode_info **info);
588 	efi_status_t (EFIAPI *set_mode)(struct efi_gop *this, u32 mode_number);
589 	efi_status_t (EFIAPI *blt)(struct efi_gop *this, void *buffer,
590 				   unsigned long operation, unsigned long sx,
591 				   unsigned long sy, unsigned long dx,
592 				   unsigned long dy, unsigned long width,
593 				   unsigned long height, unsigned long delta);
594 	struct efi_gop_mode *mode;
595 };
596 
597 #define EFI_SIMPLE_NETWORK_GUID \
598 	EFI_GUID(0xa19832b9, 0xac25, 0x11d3, \
599 		 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
600 
601 struct efi_mac_address {
602 	char mac_addr[32];
603 };
604 
605 struct efi_ip_address {
606 	u8 ip_addr[16];
607 };
608 
609 enum efi_simple_network_state {
610 	EFI_NETWORK_STOPPED,
611 	EFI_NETWORK_STARTED,
612 	EFI_NETWORK_INITIALIZED,
613 };
614 
615 struct efi_simple_network_mode {
616 	enum efi_simple_network_state state;
617 	u32 hwaddr_size;
618 	u32 media_header_size;
619 	u32 max_packet_size;
620 	u32 nvram_size;
621 	u32 nvram_access_size;
622 	u32 receive_filter_mask;
623 	u32 receive_filter_setting;
624 	u32 max_mcast_filter_count;
625 	u32 mcast_filter_count;
626 	struct efi_mac_address mcast_filter[16];
627 	struct efi_mac_address current_address;
628 	struct efi_mac_address broadcast_address;
629 	struct efi_mac_address permanent_address;
630 	u8 if_type;
631 	u8 mac_changeable;
632 	u8 multitx_supported;
633 	u8 media_present_supported;
634 	u8 media_present;
635 };
636 
637 /* receive_filters bit mask */
638 #define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST               0x01
639 #define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST             0x02
640 #define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST             0x04
641 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS           0x08
642 #define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10
643 
644 /* interrupt status bit mask */
645 #define EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT	0x01
646 #define EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT	0x02
647 #define EFI_SIMPLE_NETWORK_COMMAND_INTERRUPT	0x04
648 #define EFI_SIMPLE_NETWORK_SOFTWARE_INTERRUPT	0x08
649 
650 /* revision of the simple network protocol */
651 #define EFI_SIMPLE_NETWORK_PROTOCOL_REVISION	0x00010000
652 
653 struct efi_simple_network
654 {
655 	u64 revision;
656 	efi_status_t (EFIAPI *start)(struct efi_simple_network *this);
657 	efi_status_t (EFIAPI *stop)(struct efi_simple_network *this);
658 	efi_status_t (EFIAPI *initialize)(struct efi_simple_network *this,
659 			ulong extra_rx, ulong extra_tx);
660 	efi_status_t (EFIAPI *reset)(struct efi_simple_network *this,
661 			int extended_verification);
662 	efi_status_t (EFIAPI *shutdown)(struct efi_simple_network *this);
663 	efi_status_t (EFIAPI *receive_filters)(struct efi_simple_network *this,
664 			u32 enable, u32 disable, int reset_mcast_filter,
665 			ulong mcast_filter_count,
666 			struct efi_mac_address *mcast_filter);
667 	efi_status_t (EFIAPI *station_address)(struct efi_simple_network *this,
668 			int reset, struct efi_mac_address *new_mac);
669 	efi_status_t (EFIAPI *statistics)(struct efi_simple_network *this,
670 			int reset, ulong *stat_size, void *stat_table);
671 	efi_status_t (EFIAPI *mcastiptomac)(struct efi_simple_network *this,
672 			int ipv6, struct efi_ip_address *ip,
673 			struct efi_mac_address *mac);
674 	efi_status_t (EFIAPI *nvdata)(struct efi_simple_network *this,
675 			int read_write, ulong offset, ulong buffer_size,
676 			char *buffer);
677 	efi_status_t (EFIAPI *get_status)(struct efi_simple_network *this,
678 			u32 *int_status, void **txbuf);
679 	efi_status_t (EFIAPI *transmit)(struct efi_simple_network *this,
680 			size_t header_size, size_t buffer_size, void *buffer,
681 			struct efi_mac_address *src_addr,
682 			struct efi_mac_address *dest_addr, u16 *protocol);
683 	efi_status_t (EFIAPI *receive)(struct efi_simple_network *this,
684 			size_t *header_size, size_t *buffer_size, void *buffer,
685 			struct efi_mac_address *src_addr,
686 			struct efi_mac_address *dest_addr, u16 *protocol);
687 	struct efi_event *wait_for_packet;
688 	struct efi_simple_network_mode *mode;
689 };
690 
691 #define EFI_PXE_GUID \
692 	EFI_GUID(0x03c4e603, 0xac28, 0x11d3, \
693 		 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
694 
695 struct efi_pxe_packet {
696 	u8 packet[1472];
697 };
698 
699 struct efi_pxe_mode
700 {
701 	u8 unused[52];
702 	struct efi_pxe_packet dhcp_discover;
703 	struct efi_pxe_packet dhcp_ack;
704 	struct efi_pxe_packet proxy_offer;
705 	struct efi_pxe_packet pxe_discover;
706 	struct efi_pxe_packet pxe_reply;
707 };
708 
709 struct efi_pxe {
710 	u64 rev;
711 	void (EFIAPI *start)(void);
712 	void (EFIAPI *stop)(void);
713 	void (EFIAPI *dhcp)(void);
714 	void (EFIAPI *discover)(void);
715 	void (EFIAPI *mftp)(void);
716 	void (EFIAPI *udpwrite)(void);
717 	void (EFIAPI *udpread)(void);
718 	void (EFIAPI *setipfilter)(void);
719 	void (EFIAPI *arp)(void);
720 	void (EFIAPI *setparams)(void);
721 	void (EFIAPI *setstationip)(void);
722 	void (EFIAPI *setpackets)(void);
723 	struct efi_pxe_mode *mode;
724 };
725 
726 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
727 	EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
728 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
729 #define EFI_FILE_PROTOCOL_REVISION 0x00010000
730 
731 struct efi_file_handle {
732 	u64 rev;
733 	efi_status_t (EFIAPI *open)(struct efi_file_handle *file,
734 			struct efi_file_handle **new_handle,
735 			s16 *file_name, u64 open_mode, u64 attributes);
736 	efi_status_t (EFIAPI *close)(struct efi_file_handle *file);
737 	efi_status_t (EFIAPI *delete)(struct efi_file_handle *file);
738 	efi_status_t (EFIAPI *read)(struct efi_file_handle *file,
739 			u64 *buffer_size, void *buffer);
740 	efi_status_t (EFIAPI *write)(struct efi_file_handle *file,
741 			u64 *buffer_size, void *buffer);
742 	efi_status_t (EFIAPI *getpos)(struct efi_file_handle *file,
743 			u64 *pos);
744 	efi_status_t (EFIAPI *setpos)(struct efi_file_handle *file,
745 			u64 pos);
746 	efi_status_t (EFIAPI *getinfo)(struct efi_file_handle *file,
747 			efi_guid_t *info_type, u64 *buffer_size, void *buffer);
748 	efi_status_t (EFIAPI *setinfo)(struct efi_file_handle *file,
749 			efi_guid_t *info_type, u64 buffer_size, void *buffer);
750 	efi_status_t (EFIAPI *flush)(struct efi_file_handle *file);
751 };
752 
753 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
754 	EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
755 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
756 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000
757 
758 struct efi_simple_file_system_protocol {
759 	u64 rev;
760 	efi_status_t (EFIAPI *open_volume)(struct efi_simple_file_system_protocol *this,
761 			struct efi_file_handle **root);
762 };
763 
764 #define EFI_FILE_INFO_GUID \
765 	EFI_GUID(0x9576e92, 0x6d3f, 0x11d2, \
766 		 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
767 
768 #define EFI_FILE_MODE_READ	0x0000000000000001
769 #define EFI_FILE_MODE_WRITE	0x0000000000000002
770 #define EFI_FILE_MODE_CREATE	0x8000000000000000
771 
772 #define EFI_FILE_READ_ONLY	0x0000000000000001
773 #define EFI_FILE_HIDDEN		0x0000000000000002
774 #define EFI_FILE_SYSTEM		0x0000000000000004
775 #define EFI_FILE_RESERVED	0x0000000000000008
776 #define EFI_FILE_DIRECTORY	0x0000000000000010
777 #define EFI_FILE_ARCHIVE	0x0000000000000020
778 #define EFI_FILE_VALID_ATTR	0x0000000000000037
779 
780 struct efi_file_info {
781 	u64 size;
782 	u64 file_size;
783 	u64 physical_size;
784 	struct efi_time create_time;
785 	struct efi_time last_access_time;
786 	struct efi_time modification_time;
787 	u64 attribute;
788 	s16 file_name[0];
789 };
790 
791 #endif
792