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Diffstat (limited to 'include/smbios.h')
| -rw-r--r-- | include/smbios.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/include/smbios.h b/include/smbios.h new file mode 100644 index 0000000..97b9ddc --- /dev/null +++ b/include/smbios.h @@ -0,0 +1,240 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com> + * + * Adapted from coreboot src/include/smbios.h + */ + +#ifndef _SMBIOS_H_ +#define _SMBIOS_H_ + +/* SMBIOS spec version implemented */ +#define SMBIOS_MAJOR_VER 3 +#define SMBIOS_MINOR_VER 0 + +/* SMBIOS structure types */ +enum { + SMBIOS_BIOS_INFORMATION = 0, + SMBIOS_SYSTEM_INFORMATION = 1, + SMBIOS_BOARD_INFORMATION = 2, + SMBIOS_SYSTEM_ENCLOSURE = 3, + SMBIOS_PROCESSOR_INFORMATION = 4, + SMBIOS_CACHE_INFORMATION = 7, + SMBIOS_SYSTEM_SLOTS = 9, + SMBIOS_PHYS_MEMORY_ARRAY = 16, + SMBIOS_MEMORY_DEVICE = 17, + SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19, + SMBIOS_SYSTEM_BOOT_INFORMATION = 32, + SMBIOS_END_OF_TABLE = 127 +}; + +#define SMBIOS_INTERMEDIATE_OFFSET 16 +#define SMBIOS_STRUCT_EOS_BYTES 2 + +struct __packed smbios_entry { + u8 anchor[4]; + u8 checksum; + u8 length; + u8 major_ver; + u8 minor_ver; + u16 max_struct_size; + u8 entry_point_rev; + u8 formatted_area[5]; + u8 intermediate_anchor[5]; + u8 intermediate_checksum; + u16 struct_table_length; + u32 struct_table_address; + u16 struct_count; + u8 bcd_rev; +}; + +/* BIOS characteristics */ +#define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7) +#define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11) +#define BIOS_CHARACTERISTICS_SELECTABLE_BOOT (1 << 16) + +#define BIOS_CHARACTERISTICS_EXT1_ACPI (1 << 0) +#define BIOS_CHARACTERISTICS_EXT1_UEFI (1 << 3) +#define BIOS_CHARACTERISTICS_EXT2_TARGET (1 << 2) + +struct __packed smbios_type0 { + u8 type; + u8 length; + u16 handle; + u8 vendor; + u8 bios_ver; + u16 bios_start_segment; + u8 bios_release_date; + u8 bios_rom_size; + u64 bios_characteristics; + u8 bios_characteristics_ext1; + u8 bios_characteristics_ext2; + u8 bios_major_release; + u8 bios_minor_release; + u8 ec_major_release; + u8 ec_minor_release; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_type1 { + u8 type; + u8 length; + u16 handle; + u8 manufacturer; + u8 product_name; + u8 version; + u8 serial_number; + u8 uuid[16]; + u8 wakeup_type; + u8 sku_number; + u8 family; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +#define SMBIOS_BOARD_FEATURE_HOSTING (1 << 0) +#define SMBIOS_BOARD_MOTHERBOARD 10 + +struct __packed smbios_type2 { + u8 type; + u8 length; + u16 handle; + u8 manufacturer; + u8 product_name; + u8 version; + u8 serial_number; + u8 asset_tag_number; + u8 feature_flags; + u8 chassis_location; + u16 chassis_handle; + u8 board_type; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +#define SMBIOS_ENCLOSURE_DESKTOP 3 +#define SMBIOS_STATE_SAFE 3 +#define SMBIOS_SECURITY_NONE 3 + +struct __packed smbios_type3 { + u8 type; + u8 length; + u16 handle; + u8 manufacturer; + u8 chassis_type; + u8 version; + u8 serial_number; + u8 asset_tag_number; + u8 bootup_state; + u8 power_supply_state; + u8 thermal_state; + u8 security_status; + u32 oem_defined; + u8 height; + u8 number_of_power_cords; + u8 element_count; + u8 element_record_length; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +#define SMBIOS_PROCESSOR_TYPE_CENTRAL 3 +#define SMBIOS_PROCESSOR_STATUS_ENABLED 1 +#define SMBIOS_PROCESSOR_UPGRADE_NONE 6 + +#define SMBIOS_PROCESSOR_FAMILY_OTHER 1 +#define SMBIOS_PROCESSOR_FAMILY_UNKNOWN 2 + +struct __packed smbios_type4 { + u8 type; + u8 length; + u16 handle; + u8 socket_designation; + u8 processor_type; + u8 processor_family; + u8 processor_manufacturer; + u32 processor_id[2]; + u8 processor_version; + u8 voltage; + u16 external_clock; + u16 max_speed; + u16 current_speed; + u8 status; + u8 processor_upgrade; + u16 l1_cache_handle; + u16 l2_cache_handle; + u16 l3_cache_handle; + u8 serial_number; + u8 asset_tag; + u8 part_number; + u8 core_count; + u8 core_enabled; + u8 thread_count; + u16 processor_characteristics; + u16 processor_family2; + u16 core_count2; + u16 core_enabled2; + u16 thread_count2; + char eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_type32 { + u8 type; + u8 length; + u16 handle; + u8 reserved[6]; + u8 boot_status; + u8 eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_type127 { + u8 type; + u8 length; + u16 handle; + u8 eos[SMBIOS_STRUCT_EOS_BYTES]; +}; + +struct __packed smbios_header { + u8 type; + u8 length; + u16 handle; +}; + +/** + * fill_smbios_header() - Fill the header of an SMBIOS table + * + * This fills the header of an SMBIOS table structure. + * + * @table: start address of the structure + * @type: the type of structure + * @length: the length of the formatted area of the structure + * @handle: the structure's handle, a unique 16-bit number + */ +static inline void fill_smbios_header(void *table, int type, + int length, int handle) +{ + struct smbios_header *header = table; + + header->type = type; + header->length = length - SMBIOS_STRUCT_EOS_BYTES; + header->handle = handle; +} + +/** + * Function prototype to write a specific type of SMBIOS structure + * + * @addr: start address to write the structure + * @handle: the structure's handle, a unique 16-bit number + * @return: size of the structure + */ +typedef int (*smbios_write_type)(ulong *addr, int handle); + +/** + * write_smbios_table() - Write SMBIOS table + * + * This writes SMBIOS table at a given address. + * + * @addr: start address to write SMBIOS table. If this is not + * 16-byte-aligned then it will be aligned before the table is written + * @return: end address of SMBIOS table (and start address for next entry) + */ +ulong write_smbios_table(ulong addr); + +#endif /* _SMBIOS_H_ */ |