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Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
309 lines
7.3 KiB
C
309 lines
7.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
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*
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* Adapted from coreboot src/include/smbios.h
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*/
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#ifndef _SMBIOS_H_
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#define _SMBIOS_H_
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#include <dm/ofnode.h>
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/* SMBIOS spec version implemented */
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#define SMBIOS_MAJOR_VER 3
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#define SMBIOS_MINOR_VER 0
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enum {
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SMBIOS_STR_MAX = 64, /* Maximum length allowed for a string */
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};
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/* SMBIOS structure types */
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enum {
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SMBIOS_BIOS_INFORMATION = 0,
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SMBIOS_SYSTEM_INFORMATION = 1,
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SMBIOS_BOARD_INFORMATION = 2,
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SMBIOS_SYSTEM_ENCLOSURE = 3,
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SMBIOS_PROCESSOR_INFORMATION = 4,
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SMBIOS_CACHE_INFORMATION = 7,
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SMBIOS_SYSTEM_SLOTS = 9,
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SMBIOS_PHYS_MEMORY_ARRAY = 16,
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SMBIOS_MEMORY_DEVICE = 17,
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SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19,
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SMBIOS_SYSTEM_BOOT_INFORMATION = 32,
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SMBIOS_END_OF_TABLE = 127
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};
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#define SMBIOS_INTERMEDIATE_OFFSET 16
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#define SMBIOS_STRUCT_EOS_BYTES 2
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struct __packed smbios_entry {
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u8 anchor[4];
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u8 checksum;
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u8 length;
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u8 major_ver;
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u8 minor_ver;
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u16 max_struct_size;
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u8 entry_point_rev;
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u8 formatted_area[5];
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u8 intermediate_anchor[5];
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u8 intermediate_checksum;
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u16 struct_table_length;
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u32 struct_table_address;
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u16 struct_count;
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u8 bcd_rev;
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};
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/* BIOS characteristics */
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#define BIOS_CHARACTERISTICS_PCI_SUPPORTED (1 << 7)
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#define BIOS_CHARACTERISTICS_UPGRADEABLE (1 << 11)
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#define BIOS_CHARACTERISTICS_SELECTABLE_BOOT (1 << 16)
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#define BIOS_CHARACTERISTICS_EXT1_ACPI (1 << 0)
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#define BIOS_CHARACTERISTICS_EXT2_UEFI (1 << 3)
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#define BIOS_CHARACTERISTICS_EXT2_TARGET (1 << 2)
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struct __packed smbios_type0 {
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u8 type;
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u8 length;
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u16 handle;
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u8 vendor;
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u8 bios_ver;
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u16 bios_start_segment;
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u8 bios_release_date;
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u8 bios_rom_size;
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u64 bios_characteristics;
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u8 bios_characteristics_ext1;
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u8 bios_characteristics_ext2;
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u8 bios_major_release;
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u8 bios_minor_release;
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u8 ec_major_release;
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u8 ec_minor_release;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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struct __packed smbios_type1 {
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u8 type;
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u8 length;
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u16 handle;
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u8 manufacturer;
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u8 product_name;
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u8 version;
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u8 serial_number;
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u8 uuid[16];
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u8 wakeup_type;
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u8 sku_number;
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u8 family;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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#define SMBIOS_BOARD_FEATURE_HOSTING (1 << 0)
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#define SMBIOS_BOARD_MOTHERBOARD 10
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struct __packed smbios_type2 {
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u8 type;
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u8 length;
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u16 handle;
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u8 manufacturer;
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u8 product_name;
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u8 version;
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u8 serial_number;
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u8 asset_tag_number;
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u8 feature_flags;
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u8 chassis_location;
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u16 chassis_handle;
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u8 board_type;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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#define SMBIOS_ENCLOSURE_DESKTOP 3
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#define SMBIOS_STATE_SAFE 3
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#define SMBIOS_SECURITY_NONE 3
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struct __packed smbios_type3 {
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u8 type;
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u8 length;
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u16 handle;
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u8 manufacturer;
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u8 chassis_type;
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u8 version;
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u8 serial_number;
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u8 asset_tag_number;
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u8 bootup_state;
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u8 power_supply_state;
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u8 thermal_state;
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u8 security_status;
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u32 oem_defined;
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u8 height;
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u8 number_of_power_cords;
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u8 element_count;
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u8 element_record_length;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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#define SMBIOS_PROCESSOR_TYPE_CENTRAL 3
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#define SMBIOS_PROCESSOR_STATUS_ENABLED 1
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#define SMBIOS_PROCESSOR_UPGRADE_NONE 6
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#define SMBIOS_PROCESSOR_FAMILY_OTHER 1
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#define SMBIOS_PROCESSOR_FAMILY_UNKNOWN 2
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struct __packed smbios_type4 {
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u8 type;
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u8 length;
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u16 handle;
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u8 socket_designation;
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u8 processor_type;
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u8 processor_family;
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u8 processor_manufacturer;
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u32 processor_id[2];
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u8 processor_version;
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u8 voltage;
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u16 external_clock;
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u16 max_speed;
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u16 current_speed;
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u8 status;
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u8 processor_upgrade;
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u16 l1_cache_handle;
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u16 l2_cache_handle;
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u16 l3_cache_handle;
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u8 serial_number;
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u8 asset_tag;
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u8 part_number;
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u8 core_count;
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u8 core_enabled;
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u8 thread_count;
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u16 processor_characteristics;
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u16 processor_family2;
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u16 core_count2;
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u16 core_enabled2;
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u16 thread_count2;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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struct __packed smbios_type32 {
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u8 type;
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u8 length;
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u16 handle;
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u8 reserved[6];
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u8 boot_status;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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struct __packed smbios_type127 {
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u8 type;
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u8 length;
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u16 handle;
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char eos[SMBIOS_STRUCT_EOS_BYTES];
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};
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struct __packed smbios_header {
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u8 type;
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u8 length;
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u16 handle;
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};
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/**
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* fill_smbios_header() - Fill the header of an SMBIOS table
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*
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* This fills the header of an SMBIOS table structure.
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*
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* @table: start address of the structure
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* @type: the type of structure
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* @length: the length of the formatted area of the structure
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* @handle: the structure's handle, a unique 16-bit number
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*/
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static inline void fill_smbios_header(void *table, int type,
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int length, int handle)
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{
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struct smbios_header *header = table;
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header->type = type;
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header->length = length - SMBIOS_STRUCT_EOS_BYTES;
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header->handle = handle;
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}
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/**
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* write_smbios_table() - Write SMBIOS table
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*
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* This writes SMBIOS table at a given address.
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*
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* @addr: start address to write SMBIOS table. If this is not
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* 16-byte-aligned then it will be aligned before the table is
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* written.
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* Return: end address of SMBIOS table (and start address for next entry)
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* or NULL in case of an error
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*
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*/
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ulong write_smbios_table(ulong addr);
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/**
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* smbios_entry() - Get a valid struct smbios_entry pointer
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*
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* @address: address where smbios tables is located
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* @size: size of smbios table
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* @return: NULL or a valid pointer to a struct smbios_entry
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*/
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const struct smbios_entry *smbios_entry(u64 address, u32 size);
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/**
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* smbios_header() - Search for SMBIOS header type
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*
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* @entry: pointer to a struct smbios_entry
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* @type: SMBIOS type
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* @return: NULL or a valid pointer to a struct smbios_header
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*/
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const struct smbios_header *smbios_header(const struct smbios_entry *entry, int type);
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/**
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* smbios_string() - Return string from SMBIOS
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*
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* @header: pointer to struct smbios_header
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* @index: string index
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* @return: NULL or a valid char pointer
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*/
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char *smbios_string(const struct smbios_header *header, int index);
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/**
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* smbios_update_version() - Update the version string
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*
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* This can be called after the SMBIOS tables are written (e.g. after the U-Boot
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* main loop has started) to update the BIOS version string (SMBIOS table 0).
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*
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* @version: New version string to use
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* Return: 0 if OK, -ENOENT if no version string was previously written,
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* -ENOSPC if the new string is too large to fit
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*/
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int smbios_update_version(const char *version);
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/**
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* smbios_update_version_full() - Update the version string
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*
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* This can be called after the SMBIOS tables are written (e.g. after the U-Boot
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* main loop has started) to update the BIOS version string (SMBIOS table 0).
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* It scans for the correct place to put the version, so does not need U-Boot
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* to have actually written the tables itself (e.g. if a previous bootloader
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* did it).
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*
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* @smbios_tab: Start of SMBIOS tables
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* @version: New version string to use
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* Return: 0 if OK, -ENOENT if no version string was previously written,
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* -ENOSPC if the new string is too large to fit
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*/
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int smbios_update_version_full(void *smbios_tab, const char *version);
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/**
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* smbios_prepare_measurement() - Update smbios table for the measurement
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*
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* TCG specification requires to measure static configuration information.
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* This function clear the device dependent parameters such as
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* serial number for the measurement.
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*
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* @entry: pointer to a struct smbios_entry
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* @header: pointer to a struct smbios_header
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*/
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void smbios_prepare_measurement(const struct smbios_entry *entry,
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struct smbios_header *header);
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#endif /* _SMBIOS_H_ */
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