1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Adapted from coreboot src/include/smbios.h
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #ifndef _SMBIOS_H_
10*4882a593Smuzhiyun #define _SMBIOS_H_
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun /* SMBIOS spec version implemented */
13*4882a593Smuzhiyun #define SMBIOS_MAJOR_VER 3
14*4882a593Smuzhiyun #define SMBIOS_MINOR_VER 0
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun /* SMBIOS structure types */
17*4882a593Smuzhiyun enum {
18*4882a593Smuzhiyun SMBIOS_BIOS_INFORMATION = 0,
19*4882a593Smuzhiyun SMBIOS_SYSTEM_INFORMATION = 1,
20*4882a593Smuzhiyun SMBIOS_BOARD_INFORMATION = 2,
21*4882a593Smuzhiyun SMBIOS_SYSTEM_ENCLOSURE = 3,
22*4882a593Smuzhiyun SMBIOS_PROCESSOR_INFORMATION = 4,
23*4882a593Smuzhiyun SMBIOS_CACHE_INFORMATION = 7,
24*4882a593Smuzhiyun SMBIOS_SYSTEM_SLOTS = 9,
25*4882a593Smuzhiyun SMBIOS_PHYS_MEMORY_ARRAY = 16,
26*4882a593Smuzhiyun SMBIOS_MEMORY_DEVICE = 17,
27*4882a593Smuzhiyun SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19,
28*4882a593Smuzhiyun SMBIOS_SYSTEM_BOOT_INFORMATION = 32,
29*4882a593Smuzhiyun SMBIOS_END_OF_TABLE = 127
30*4882a593Smuzhiyun };
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun #define SMBIOS_INTERMEDIATE_OFFSET 16
33*4882a593Smuzhiyun #define SMBIOS_STRUCT_EOS_BYTES 2
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun struct __packed smbios_entry {
36*4882a593Smuzhiyun u8 anchor[4];
37*4882a593Smuzhiyun u8 checksum;
38*4882a593Smuzhiyun u8 length;
39*4882a593Smuzhiyun u8 major_ver;
40*4882a593Smuzhiyun u8 minor_ver;
41*4882a593Smuzhiyun u16 max_struct_size;
42*4882a593Smuzhiyun u8 entry_point_rev;
43*4882a593Smuzhiyun u8 formatted_area[5];
44*4882a593Smuzhiyun u8 intermediate_anchor[5];
45*4882a593Smuzhiyun u8 intermediate_checksum;
46*4882a593Smuzhiyun u16 struct_table_length;
47*4882a593Smuzhiyun u32 struct_table_address;
48*4882a593Smuzhiyun u16 struct_count;
49*4882a593Smuzhiyun u8 bcd_rev;
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun /* BIOS characteristics */
53*4882a593Smuzhiyun #define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7)
54*4882a593Smuzhiyun #define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11)
55*4882a593Smuzhiyun #define BIOS_CHARACTERISTICS_SELECTABLE_BOOT (1 << 16)
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun #define BIOS_CHARACTERISTICS_EXT1_ACPI (1 << 0)
58*4882a593Smuzhiyun #define BIOS_CHARACTERISTICS_EXT1_UEFI (1 << 3)
59*4882a593Smuzhiyun #define BIOS_CHARACTERISTICS_EXT2_TARGET (1 << 2)
60*4882a593Smuzhiyun
61*4882a593Smuzhiyun struct __packed smbios_type0 {
62*4882a593Smuzhiyun u8 type;
63*4882a593Smuzhiyun u8 length;
64*4882a593Smuzhiyun u16 handle;
65*4882a593Smuzhiyun u8 vendor;
66*4882a593Smuzhiyun u8 bios_ver;
67*4882a593Smuzhiyun u16 bios_start_segment;
68*4882a593Smuzhiyun u8 bios_release_date;
69*4882a593Smuzhiyun u8 bios_rom_size;
70*4882a593Smuzhiyun u64 bios_characteristics;
71*4882a593Smuzhiyun u8 bios_characteristics_ext1;
72*4882a593Smuzhiyun u8 bios_characteristics_ext2;
73*4882a593Smuzhiyun u8 bios_major_release;
74*4882a593Smuzhiyun u8 bios_minor_release;
75*4882a593Smuzhiyun u8 ec_major_release;
76*4882a593Smuzhiyun u8 ec_minor_release;
77*4882a593Smuzhiyun char eos[SMBIOS_STRUCT_EOS_BYTES];
78*4882a593Smuzhiyun };
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun struct __packed smbios_type1 {
81*4882a593Smuzhiyun u8 type;
82*4882a593Smuzhiyun u8 length;
83*4882a593Smuzhiyun u16 handle;
84*4882a593Smuzhiyun u8 manufacturer;
85*4882a593Smuzhiyun u8 product_name;
86*4882a593Smuzhiyun u8 version;
87*4882a593Smuzhiyun u8 serial_number;
88*4882a593Smuzhiyun u8 uuid[16];
89*4882a593Smuzhiyun u8 wakeup_type;
90*4882a593Smuzhiyun u8 sku_number;
91*4882a593Smuzhiyun u8 family;
92*4882a593Smuzhiyun char eos[SMBIOS_STRUCT_EOS_BYTES];
93*4882a593Smuzhiyun };
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun #define SMBIOS_BOARD_FEATURE_HOSTING (1 << 0)
96*4882a593Smuzhiyun #define SMBIOS_BOARD_MOTHERBOARD 10
97*4882a593Smuzhiyun
98*4882a593Smuzhiyun struct __packed smbios_type2 {
99*4882a593Smuzhiyun u8 type;
100*4882a593Smuzhiyun u8 length;
101*4882a593Smuzhiyun u16 handle;
102*4882a593Smuzhiyun u8 manufacturer;
103*4882a593Smuzhiyun u8 product_name;
104*4882a593Smuzhiyun u8 version;
105*4882a593Smuzhiyun u8 serial_number;
106*4882a593Smuzhiyun u8 asset_tag_number;
107*4882a593Smuzhiyun u8 feature_flags;
108*4882a593Smuzhiyun u8 chassis_location;
109*4882a593Smuzhiyun u16 chassis_handle;
110*4882a593Smuzhiyun u8 board_type;
111*4882a593Smuzhiyun char eos[SMBIOS_STRUCT_EOS_BYTES];
112*4882a593Smuzhiyun };
113*4882a593Smuzhiyun
114*4882a593Smuzhiyun #define SMBIOS_ENCLOSURE_DESKTOP 3
115*4882a593Smuzhiyun #define SMBIOS_STATE_SAFE 3
116*4882a593Smuzhiyun #define SMBIOS_SECURITY_NONE 3
117*4882a593Smuzhiyun
118*4882a593Smuzhiyun struct __packed smbios_type3 {
119*4882a593Smuzhiyun u8 type;
120*4882a593Smuzhiyun u8 length;
121*4882a593Smuzhiyun u16 handle;
122*4882a593Smuzhiyun u8 manufacturer;
123*4882a593Smuzhiyun u8 chassis_type;
124*4882a593Smuzhiyun u8 version;
125*4882a593Smuzhiyun u8 serial_number;
126*4882a593Smuzhiyun u8 asset_tag_number;
127*4882a593Smuzhiyun u8 bootup_state;
128*4882a593Smuzhiyun u8 power_supply_state;
129*4882a593Smuzhiyun u8 thermal_state;
130*4882a593Smuzhiyun u8 security_status;
131*4882a593Smuzhiyun u32 oem_defined;
132*4882a593Smuzhiyun u8 height;
133*4882a593Smuzhiyun u8 number_of_power_cords;
134*4882a593Smuzhiyun u8 element_count;
135*4882a593Smuzhiyun u8 element_record_length;
136*4882a593Smuzhiyun char eos[SMBIOS_STRUCT_EOS_BYTES];
137*4882a593Smuzhiyun };
138*4882a593Smuzhiyun
139*4882a593Smuzhiyun #define SMBIOS_PROCESSOR_TYPE_CENTRAL 3
140*4882a593Smuzhiyun #define SMBIOS_PROCESSOR_STATUS_ENABLED 1
141*4882a593Smuzhiyun #define SMBIOS_PROCESSOR_UPGRADE_NONE 6
142*4882a593Smuzhiyun
143*4882a593Smuzhiyun #define SMBIOS_PROCESSOR_FAMILY_OTHER 1
144*4882a593Smuzhiyun #define SMBIOS_PROCESSOR_FAMILY_UNKNOWN 2
145*4882a593Smuzhiyun
146*4882a593Smuzhiyun struct __packed smbios_type4 {
147*4882a593Smuzhiyun u8 type;
148*4882a593Smuzhiyun u8 length;
149*4882a593Smuzhiyun u16 handle;
150*4882a593Smuzhiyun u8 socket_designation;
151*4882a593Smuzhiyun u8 processor_type;
152*4882a593Smuzhiyun u8 processor_family;
153*4882a593Smuzhiyun u8 processor_manufacturer;
154*4882a593Smuzhiyun u32 processor_id[2];
155*4882a593Smuzhiyun u8 processor_version;
156*4882a593Smuzhiyun u8 voltage;
157*4882a593Smuzhiyun u16 external_clock;
158*4882a593Smuzhiyun u16 max_speed;
159*4882a593Smuzhiyun u16 current_speed;
160*4882a593Smuzhiyun u8 status;
161*4882a593Smuzhiyun u8 processor_upgrade;
162*4882a593Smuzhiyun u16 l1_cache_handle;
163*4882a593Smuzhiyun u16 l2_cache_handle;
164*4882a593Smuzhiyun u16 l3_cache_handle;
165*4882a593Smuzhiyun u8 serial_number;
166*4882a593Smuzhiyun u8 asset_tag;
167*4882a593Smuzhiyun u8 part_number;
168*4882a593Smuzhiyun u8 core_count;
169*4882a593Smuzhiyun u8 core_enabled;
170*4882a593Smuzhiyun u8 thread_count;
171*4882a593Smuzhiyun u16 processor_characteristics;
172*4882a593Smuzhiyun u16 processor_family2;
173*4882a593Smuzhiyun u16 core_count2;
174*4882a593Smuzhiyun u16 core_enabled2;
175*4882a593Smuzhiyun u16 thread_count2;
176*4882a593Smuzhiyun char eos[SMBIOS_STRUCT_EOS_BYTES];
177*4882a593Smuzhiyun };
178*4882a593Smuzhiyun
179*4882a593Smuzhiyun struct __packed smbios_type32 {
180*4882a593Smuzhiyun u8 type;
181*4882a593Smuzhiyun u8 length;
182*4882a593Smuzhiyun u16 handle;
183*4882a593Smuzhiyun u8 reserved[6];
184*4882a593Smuzhiyun u8 boot_status;
185*4882a593Smuzhiyun u8 eos[SMBIOS_STRUCT_EOS_BYTES];
186*4882a593Smuzhiyun };
187*4882a593Smuzhiyun
188*4882a593Smuzhiyun struct __packed smbios_type127 {
189*4882a593Smuzhiyun u8 type;
190*4882a593Smuzhiyun u8 length;
191*4882a593Smuzhiyun u16 handle;
192*4882a593Smuzhiyun u8 eos[SMBIOS_STRUCT_EOS_BYTES];
193*4882a593Smuzhiyun };
194*4882a593Smuzhiyun
195*4882a593Smuzhiyun struct __packed smbios_header {
196*4882a593Smuzhiyun u8 type;
197*4882a593Smuzhiyun u8 length;
198*4882a593Smuzhiyun u16 handle;
199*4882a593Smuzhiyun };
200*4882a593Smuzhiyun
201*4882a593Smuzhiyun /**
202*4882a593Smuzhiyun * fill_smbios_header() - Fill the header of an SMBIOS table
203*4882a593Smuzhiyun *
204*4882a593Smuzhiyun * This fills the header of an SMBIOS table structure.
205*4882a593Smuzhiyun *
206*4882a593Smuzhiyun * @table: start address of the structure
207*4882a593Smuzhiyun * @type: the type of structure
208*4882a593Smuzhiyun * @length: the length of the formatted area of the structure
209*4882a593Smuzhiyun * @handle: the structure's handle, a unique 16-bit number
210*4882a593Smuzhiyun */
fill_smbios_header(void * table,int type,int length,int handle)211*4882a593Smuzhiyun static inline void fill_smbios_header(void *table, int type,
212*4882a593Smuzhiyun int length, int handle)
213*4882a593Smuzhiyun {
214*4882a593Smuzhiyun struct smbios_header *header = table;
215*4882a593Smuzhiyun
216*4882a593Smuzhiyun header->type = type;
217*4882a593Smuzhiyun header->length = length - SMBIOS_STRUCT_EOS_BYTES;
218*4882a593Smuzhiyun header->handle = handle;
219*4882a593Smuzhiyun }
220*4882a593Smuzhiyun
221*4882a593Smuzhiyun /**
222*4882a593Smuzhiyun * Function prototype to write a specific type of SMBIOS structure
223*4882a593Smuzhiyun *
224*4882a593Smuzhiyun * @addr: start address to write the structure
225*4882a593Smuzhiyun * @handle: the structure's handle, a unique 16-bit number
226*4882a593Smuzhiyun * @return: size of the structure
227*4882a593Smuzhiyun */
228*4882a593Smuzhiyun typedef int (*smbios_write_type)(ulong *addr, int handle);
229*4882a593Smuzhiyun
230*4882a593Smuzhiyun /**
231*4882a593Smuzhiyun * write_smbios_table() - Write SMBIOS table
232*4882a593Smuzhiyun *
233*4882a593Smuzhiyun * This writes SMBIOS table at a given address.
234*4882a593Smuzhiyun *
235*4882a593Smuzhiyun * @addr: start address to write SMBIOS table
236*4882a593Smuzhiyun * @return: end address of SMBIOS table
237*4882a593Smuzhiyun */
238*4882a593Smuzhiyun ulong write_smbios_table(ulong addr);
239*4882a593Smuzhiyun
240*4882a593Smuzhiyun #endif /* _SMBIOS_H_ */
241