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// SPDX-License-Identifier: GPL-2.0
#ifndef SMBIOS_H
#define SMBIOS_H
/**
* \file
*
* Provides functions for reading SMBIOS tables
*
* Copyright (C) 2004-2022 Samuel Demeulemeester.
*/
#define DMI_SDR 0x0F
#define DMI_RDRAM 0x11
#define DMI_DDR 0x12
#define DMI_DDR2 0x13
#define DMI_DDR2_FBDIMM 0x14
#define DMI_DDR3 0x18
#define DMI_DDR4 0x1A
#define DMI_LPDDR 0x1B
#define DMI_LPDDR2 0x1C
#define DMI_LPDDR3 0x1D
#define DMI_LPDDR4 0x1E
#define DMI_DDR5 0x22
#define DMI_LPDDR5 0x23
typedef struct {
uint8_t anchor[4];
int8_t checksum;
uint8_t length;
uint8_t majorversion;
uint8_t minorversion;
uint16_t maxstructsize;
uint8_t revision;
uint8_t pad[5];
uint8_t intanchor[5];
int8_t intchecksum;
uint16_t tablelength;
uint32_t tableaddress;
uint16_t numstructs;
uint8_t SMBIOSrev;
} smbiosv2_t;
struct tstruct_header {
uint8_t type;
uint8_t length;
uint16_t handle;
} __attribute__((packed));
struct system_info {
struct tstruct_header header;
uint8_t manufacturer;
uint8_t productname;
uint8_t version;
uint8_t serialnumber;
uint8_t uuidbytes[16];
uint8_t wut; // Last field defined by SMBIOS 2.3.
/*uint8_t sku_number;
uint8_t family;*/
} __attribute__((packed));
struct baseboard_info {
struct tstruct_header header;
uint8_t manufacturer;
uint8_t productname;
uint8_t version;
uint8_t serialnumber; // Last field defined by SMBIOS 2.3.
/*uint8_t asset_tag;
uint8_t feature_flags;
uint8_t location_in_chassis;
uint16_t chassis_handle;
uint8_t board_type;
uint16_t number_contained_object_handles;*/
} __attribute__((packed));
struct mem_module {
struct tstruct_header header;
uint8_t socket_designation;
uint8_t bank_connections;
uint8_t current_speed;
uint16_t current_memory_type;
uint8_t installed_size;
uint8_t enabled_size;
uint8_t error_status;
} __attribute__((packed));
struct mem_dev {
struct tstruct_header header;
uint16_t pma_handle;
uint16_t err_handle;
uint16_t tot_width;
uint16_t dat_width;
uint16_t size;
uint8_t form;
uint8_t set;
uint8_t dev_locator;
uint8_t bank_locator;
uint8_t type;
uint16_t typedetail;
uint16_t speed;
uint8_t manufacturer;
uint8_t serialnum;
uint8_t asset;
uint8_t partnum; // Last field defined by SMBIOS 2.3.
/*uint8_t attributes;
uint32_t ext_size;
uint16_t conf_ram_speed;
uint16_t min_voltage;
uint16_t max_votage;
uint16_t conf_voltage;
uint8_t technology;
uint16_t operating_mode_capability;
uint8_t firmware_version;
uint16_t module_manufacturer_id;
uint16_t module_product_id;
uint16_t mem_subsystem_controller_manufacturer_id;
uint16_t mem_subsystem_controller_product_id;
uint64_t nonvolatile_size;
uint64_t volatile_size;
uint64_t cache_size;
uint64_t logical_size;
uint32_t extended_speed;
uint32_t extended_conf_speed;*/
} __attribute__((packed));
/**
* Memory device Structure (used for SPD decoding)
*/
extern struct mem_dev *dmi_memory_device;
/**
* Initialize SMBIOS/DMI (locate struct)
*/
int smbios_init(void);
/**
* Print DMI
*/
void print_smbios_startup_info(void);
#endif // SMBIOS_H
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