summaryrefslogtreecommitdiffstats
path: root/include/efi_api.h
blob: 4fd17d6b687db176978e239ec0ab272a1f0483a3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
/*
 * 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>

/* EFI Boot Services table */
struct efi_boot_services {
	struct efi_table_hdr hdr;
	void *raise_tpl;
	void *restore_tpl;

	efi_status_t (EFIAPI *allocate_pages)(int, int, unsigned long,
					      efi_physical_addr_t *);
	efi_status_t (EFIAPI *free_pages)(efi_physical_addr_t, unsigned long);
	efi_status_t (EFIAPI *get_memory_map)(unsigned long *memory_map_size,
			struct efi_mem_desc *desc, unsigned long *key,
			unsigned long *desc_size, u32 *desc_version);
	efi_status_t (EFIAPI *allocate_pool)(int, unsigned long, void **);
	efi_status_t (EFIAPI *free_pool)(void *);

	void *create_event;
	void *set_timer;
	efi_status_t(EFIAPI *wait_for_event)(unsigned long number_of_events,
					     void *event, unsigned long *index);
	void *signal_event;
	void *close_event;
	void *check_event;

	void *install_protocol_interface;
	void *reinstall_protocol_interface;
	void *uninstall_protocol_interface;
	efi_status_t (EFIAPI *handle_protocol)(efi_handle_t, efi_guid_t *,
					       void **);
	void *reserved;
	void *register_protocol_notify;
	efi_status_t (EFIAPI *locate_handle)(
			enum efi_locate_search_type search_type,
			efi_guid_t *protocol, void *search_key,
			unsigned long *buffer_size, efi_handle_t *buffer);
	efi_status_t (EFIAPI *locate_device_path)(efi_guid_t *protocol,
			struct efi_device_path **device_path,
			efi_handle_t *device);
	void *install_configuration_table;

	efi_status_t (EFIAPI *load_image)(bool boot_policiy,
			efi_handle_t parent_image,
			struct efi_device_path *file_path, void *source_buffer,
			unsigned long source_size, efi_handle_t *image);
	efi_status_t (EFIAPI *start_image)(efi_handle_t handle,
					   unsigned long *exitdata_size,
					   s16 **exitdata);
	efi_status_t (EFIAPI *exit)(efi_handle_t handle,
				    efi_status_t exit_status,
				    unsigned long exitdata_size, s16 *exitdata);
	void *unload_image;
	efi_status_t (EFIAPI *exit_boot_services)(efi_handle_t, unsigned long);

	efi_status_t (EFIAPI *get_next_monotonic_count)(u64 *count);
	efi_status_t (EFIAPI *stall)(unsigned long usecs);
	void *set_watchdog_timer;
	efi_status_t(EFIAPI *connect_controller)(efi_handle_t controller_handle,
			efi_handle_t *driver_image_handle,
			struct efi_device_path *remaining_device_path,
			bool recursive);
	void *disconnect_controller;
#define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL  0x00000001
#define EFI_OPEN_PROTOCOL_GET_PROTOCOL        0x00000002
#define EFI_OPEN_PROTOCOL_TEST_PROTOCOL       0x00000004
#define EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008
#define EFI_OPEN_PROTOCOL_BY_DRIVER           0x00000010
#define EFI_OPEN_PROTOCOL_EXCLUSIVE           0x00000020
	efi_status_t (EFIAPI *open_protocol)(efi_handle_t handle,
			efi_guid_t *protocol, void **interface,
			efi_handle_t agent_handle,
			efi_handle_t controller_handle, u32 attributes);
	void *close_protocol;
	efi_status_t(EFIAPI *open_protocol_information)(efi_handle_t handle,
			efi_guid_t *protocol,
			struct efi_open_protocol_info_entry **entry_buffer,
			unsigned long *entry_count);
	efi_status_t (EFIAPI *protocols_per_handle)(efi_handle_t handle,
			efi_guid_t ***protocol_buffer,
			unsigned long *protocols_buffer_count);
	efi_status_t (EFIAPI *locate_handle_buffer) (
			enum efi_locate_search_type search_type,
			efi_guid_t *protocol, void *search_key,
			unsigned long *no_handles, efi_handle_t **buffer);
	void *locate_protocol;
	void *install_multiple_protocol_interfaces;
	void *uninstall_multiple_protocol_interfaces;
	void *calculate_crc32;
	void *copy_mem;
	void *set_mem;
	void *create_event_ex;
};

/* Types and defines for EFI ResetSystem */
enum efi_reset_type {
	EFI_RESET_COLD = 0,
	EFI_RESET_WARM = 1,
	EFI_RESET_SHUTDOWN = 2
};

/* EFI Runtime Services table */
#define EFI_RUNTIME_SERVICES_SIGNATURE	0x5652453544e5552ULL
#define EFI_RUNTIME_SERVICES_REVISION	0x00010000

struct efi_runtime_services {
	struct efi_table_hdr hdr;
	void *get_time;
	void *set_time;
	void *get_wakeup_time;
	void *set_wakeup_time;
	void *set_virtual_address_map;
	void *convert_pointer;
	efi_status_t (EFIAPI *get_variable)(s16 *variable_name,
			efi_guid_t *vendor, u32 *attributes,
			unsigned long *data_size, void *data);
	efi_status_t (EFIAPI *get_next_variable)(
			unsigned long *variable_name_size,
			s16 *variable_name, efi_guid_t *vendor);
	efi_status_t (EFIAPI *set_variable)(s16 *variable_name,
			efi_guid_t *vendor, u32 attributes,
			unsigned long data_size, void *data);
	void *get_next_high_mono_count;
	void (EFIAPI *reset_system)(enum efi_reset_type reset_type,
				    efi_status_t reset_status,
				    unsigned long data_size, void *reset_data);
	void *update_capsule;
	void *query_capsule_caps;
	void *query_variable_info;
};

/* EFI Configuration Table and GUID definitions */
#define NULL_GUID \
	EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
		 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)

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

struct efi_system_table {
	struct efi_table_hdr hdr;
	unsigned long fw_vendor;   /* physical addr of wchar_t vendor string */
	u32 fw_revision;
	unsigned long con_in_handle;
	struct efi_simple_input_interface *con_in;
	unsigned long con_out_handle;
	struct efi_simple_text_output_protocol *con_out;
	unsigned long stderr_handle;
	unsigned long std_err;
	struct efi_runtime_services *runtime;
	struct efi_boot_services *boottime;
	unsigned long nr_tables;
	unsigned long tables;
};

struct efi_loaded_image {
	u32 revision;
	void *parent_handle;
	struct efi_system_table *system_table;
	void *device_handle;
	void *file_path;
	void *reserved;
	u32 load_options_size;
	void *load_options;
	void *image_base;
	aligned_u64 image_size;
	unsigned int image_code_type;
	unsigned int image_data_type;
	unsigned long unload;
};

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

struct simple_text_output_mode {
	s32 max_mode;
	s32 mode;
	s32 attribute;
	s32 cursor_column;
	s32 cursor_row;
	bool cursor_visible;
};

struct efi_simple_text_output_protocol {
	void *reset;
	efi_status_t (EFIAPI *output_string)(
			struct efi_simple_text_output_protocol *this,
			const unsigned short *str);
	void *test_string;

	efi_status_t(EFIAPI *query_mode)(
			struct efi_simple_text_output_protocol *this,
			unsigned long mode_number, unsigned long *columns,
			unsigned long *rows);
	efi_status_t(EFIAPI *set_mode)(
			struct efi_simple_text_output_protocol *this,
			unsigned long mode_number);
	efi_status_t(EFIAPI *set_attribute)(
			struct efi_simple_text_output_protocol *this,
			unsigned long attribute);
	efi_status_t(EFIAPI *clear_screen) (
			struct efi_simple_text_output_protocol *this);
	efi_status_t(EFIAPI *set_cursor_position) (
			struct efi_simple_text_output_protocol *this,
			unsigned long column, unsigned long row);
	efi_status_t(EFIAPI *enable_cursor)(void *, bool enable);
	struct simple_text_output_mode *mode;
};

struct efi_input_key {
	u16 scan_code;
	s16 unicode_char;
};

struct efi_simple_input_interface {
	efi_status_t(EFIAPI *reset)(struct efi_simple_input_interface *this,
			bool ExtendedVerification);
	efi_status_t(EFIAPI *read_key_stroke)(
			struct efi_simple_input_interface *this,
			struct efi_input_key *key);
	void *wait_for_key;
};

#endif
OpenPOWER on IntegriCloud