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721e992a BM |
1 | /* |
2 | * Copyright (C) 2015, Bin Meng <[email protected]> | |
3 | * | |
4 | * Adapted from coreboot src/include/smbios.h | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
9 | #ifndef _SMBIOS_H_ | |
10 | #define _SMBIOS_H_ | |
11 | ||
12 | /* SMBIOS spec version implemented */ | |
13 | #define SMBIOS_MAJOR_VER 3 | |
14 | #define SMBIOS_MINOR_VER 0 | |
15 | ||
16 | /* SMBIOS structure types */ | |
17 | enum { | |
18 | SMBIOS_BIOS_INFORMATION = 0, | |
19 | SMBIOS_SYSTEM_INFORMATION = 1, | |
20 | SMBIOS_BOARD_INFORMATION = 2, | |
21 | SMBIOS_SYSTEM_ENCLOSURE = 3, | |
22 | SMBIOS_PROCESSOR_INFORMATION = 4, | |
23 | SMBIOS_CACHE_INFORMATION = 7, | |
24 | SMBIOS_SYSTEM_SLOTS = 9, | |
25 | SMBIOS_PHYS_MEMORY_ARRAY = 16, | |
26 | SMBIOS_MEMORY_DEVICE = 17, | |
27 | SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19, | |
28 | SMBIOS_SYSTEM_BOOT_INFORMATION = 32, | |
29 | SMBIOS_END_OF_TABLE = 127 | |
30 | }; | |
31 | ||
32 | #define SMBIOS_INTERMEDIATE_OFFSET 16 | |
33 | #define SMBIOS_STRUCT_EOS_BYTES 2 | |
34 | ||
35 | struct __packed smbios_entry { | |
36 | u8 anchor[4]; | |
37 | u8 checksum; | |
38 | u8 length; | |
39 | u8 major_ver; | |
40 | u8 minor_ver; | |
41 | u16 max_struct_size; | |
42 | u8 entry_point_rev; | |
43 | u8 formatted_area[5]; | |
44 | u8 intermediate_anchor[5]; | |
45 | u8 intermediate_checksum; | |
46 | u16 struct_table_length; | |
47 | u32 struct_table_address; | |
48 | u16 struct_count; | |
49 | u8 bcd_rev; | |
50 | }; | |
51 | ||
52 | /* BIOS characteristics */ | |
53 | #define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7) | |
54 | #define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11) | |
55 | #define BIOS_CHARACTERISTICS_SELECTABLE_BOOT (1 << 16) | |
56 | ||
57 | #define BIOS_CHARACTERISTICS_EXT1_ACPI (1 << 0) | |
58 | #define BIOS_CHARACTERISTICS_EXT2_TARGET (1 << 2) | |
59 | ||
60 | struct __packed smbios_type0 { | |
61 | u8 type; | |
62 | u8 length; | |
63 | u16 handle; | |
64 | u8 vendor; | |
65 | u8 bios_ver; | |
66 | u16 bios_start_segment; | |
67 | u8 bios_release_date; | |
68 | u8 bios_rom_size; | |
69 | u64 bios_characteristics; | |
70 | u8 bios_characteristics_ext1; | |
71 | u8 bios_characteristics_ext2; | |
72 | u8 bios_major_release; | |
73 | u8 bios_minor_release; | |
74 | u8 ec_major_release; | |
75 | u8 ec_minor_release; | |
76 | char eos[SMBIOS_STRUCT_EOS_BYTES]; | |
77 | }; | |
78 | ||
79 | struct __packed smbios_type1 { | |
80 | u8 type; | |
81 | u8 length; | |
82 | u16 handle; | |
83 | u8 manufacturer; | |
84 | u8 product_name; | |
85 | u8 version; | |
86 | u8 serial_number; | |
87 | u8 uuid[16]; | |
88 | u8 wakeup_type; | |
89 | u8 sku_number; | |
90 | u8 family; | |
91 | char eos[SMBIOS_STRUCT_EOS_BYTES]; | |
92 | }; | |
93 | ||
94 | #define SMBIOS_BOARD_FEATURE_HOSTING (1 << 0) | |
95 | #define SMBIOS_BOARD_MOTHERBOARD 10 | |
96 | ||
97 | struct __packed smbios_type2 { | |
98 | u8 type; | |
99 | u8 length; | |
100 | u16 handle; | |
101 | u8 manufacturer; | |
102 | u8 product_name; | |
103 | u8 version; | |
104 | u8 serial_number; | |
105 | u8 asset_tag_number; | |
106 | u8 feature_flags; | |
107 | u8 chassis_location; | |
108 | u16 chassis_handle; | |
109 | u8 board_type; | |
110 | char eos[SMBIOS_STRUCT_EOS_BYTES]; | |
111 | }; | |
112 | ||
113 | #define SMBIOS_ENCLOSURE_DESKTOP 3 | |
114 | #define SMBIOS_STATE_SAFE 3 | |
115 | #define SMBIOS_SECURITY_NONE 3 | |
116 | ||
117 | struct __packed smbios_type3 { | |
118 | u8 type; | |
119 | u8 length; | |
120 | u16 handle; | |
121 | u8 manufacturer; | |
122 | u8 chassis_type; | |
123 | u8 version; | |
124 | u8 serial_number; | |
125 | u8 asset_tag_number; | |
126 | u8 bootup_state; | |
127 | u8 power_supply_state; | |
128 | u8 thermal_state; | |
129 | u8 security_status; | |
130 | u32 oem_defined; | |
131 | u8 height; | |
132 | u8 number_of_power_cords; | |
133 | u8 element_count; | |
134 | u8 element_record_length; | |
135 | char eos[SMBIOS_STRUCT_EOS_BYTES]; | |
136 | }; | |
137 | ||
138 | #define SMBIOS_PROCESSOR_TYPE_CENTRAL 3 | |
139 | #define SMBIOS_PROCESSOR_STATUS_ENABLED 1 | |
140 | #define SMBIOS_PROCESSOR_UPGRADE_NONE 6 | |
141 | ||
142 | struct __packed smbios_type4 { | |
143 | u8 type; | |
144 | u8 length; | |
145 | u16 handle; | |
146 | u8 socket_designation; | |
147 | u8 processor_type; | |
148 | u8 processor_family; | |
149 | u8 processor_manufacturer; | |
150 | u32 processor_id[2]; | |
151 | u8 processor_version; | |
152 | u8 voltage; | |
153 | u16 external_clock; | |
154 | u16 max_speed; | |
155 | u16 current_speed; | |
156 | u8 status; | |
157 | u8 processor_upgrade; | |
158 | u16 l1_cache_handle; | |
159 | u16 l2_cache_handle; | |
160 | u16 l3_cache_handle; | |
161 | u8 serial_number; | |
162 | u8 asset_tag; | |
163 | u8 part_number; | |
164 | u8 core_count; | |
165 | u8 core_enabled; | |
166 | u8 thread_count; | |
167 | u16 processor_characteristics; | |
168 | u16 processor_family2; | |
169 | u16 core_count2; | |
170 | u16 core_enabled2; | |
171 | u16 thread_count2; | |
172 | char eos[SMBIOS_STRUCT_EOS_BYTES]; | |
173 | }; | |
174 | ||
175 | struct __packed smbios_type32 { | |
176 | u8 type; | |
177 | u8 length; | |
178 | u16 handle; | |
179 | u8 reserved[6]; | |
180 | u8 boot_status; | |
181 | u8 eos[SMBIOS_STRUCT_EOS_BYTES]; | |
182 | }; | |
183 | ||
184 | struct __packed smbios_type127 { | |
185 | u8 type; | |
186 | u8 length; | |
187 | u16 handle; | |
188 | u8 eos[SMBIOS_STRUCT_EOS_BYTES]; | |
189 | }; | |
190 | ||
191 | struct __packed smbios_header { | |
192 | u8 type; | |
193 | u8 length; | |
194 | u16 handle; | |
195 | }; | |
196 | ||
197 | /** | |
198 | * fill_smbios_header() - Fill the header of an SMBIOS table | |
199 | * | |
200 | * This fills the header of an SMBIOS table structure. | |
201 | * | |
202 | * @table: start address of the structure | |
203 | * @type: the type of structure | |
204 | * @length: the length of the formatted area of the structure | |
205 | * @handle: the structure's handle, a unique 16-bit number | |
206 | */ | |
207 | static inline void fill_smbios_header(void *table, int type, | |
208 | int length, int handle) | |
209 | { | |
210 | struct smbios_header *header = table; | |
211 | ||
212 | header->type = type; | |
213 | header->length = length - SMBIOS_STRUCT_EOS_BYTES; | |
214 | header->handle = handle; | |
215 | } | |
216 | ||
217 | /** | |
218 | * Function prototype to write a specific type of SMBIOS structure | |
219 | * | |
220 | * @addr: start address to write the structure | |
221 | * @handle: the structure's handle, a unique 16-bit number | |
222 | * @return: size of the structure | |
223 | */ | |
224 | typedef int (*smbios_write_type)(u32 *addr, int handle); | |
225 | ||
226 | /** | |
227 | * write_smbios_table() - Write SMBIOS table | |
228 | * | |
229 | * This writes SMBIOS table at a given address. | |
230 | * | |
231 | * @addr: start address to write SMBIOS table | |
232 | * @return: end address of SMBIOS table | |
233 | */ | |
234 | u32 write_smbios_table(u32 addr); | |
235 | ||
236 | #endif /* _SMBIOS_H_ */ |