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96 lines
1.8 KiB
C
96 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef SMBIOS_H
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#define SMBIOS_H
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/**
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* \file
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*
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* Provides functions for reading SMBIOS tables
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*
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* Copyright (C) 2004-2022 Samuel Demeulemeester.
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*/
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#define DMI_SDR 0x0F
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#define DMI_DDR 0x12
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#define DMI_DDR2 0x13
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#define DMI_DDR3 0x18
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#define DMI_DDR4 0x1A
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#define DMI_DDR5 0x22
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typedef struct {
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uint8_t anchor[4];
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int8_t checksum;
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uint8_t length;
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uint8_t majorversion;
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uint8_t minorversion;
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uint16_t maxstructsize;
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uint8_t revision;
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uint8_t pad[5];
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uint8_t intanchor[5];
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int8_t intchecksum;
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uint16_t tablelength;
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uint32_t tableaddress;
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uint16_t numstructs;
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uint8_t SMBIOSrev;
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} smbios_t;
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struct tstruct_header {
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uint8_t type;
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uint8_t length;
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uint16_t handle;
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} __attribute__((packed));
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struct system_map {
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struct tstruct_header header;
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uint8_t manufacturer;
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uint8_t productname;
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uint8_t version;
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uint8_t serialnumber;
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uint8_t uuidbytes[16];
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uint8_t wut;
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} __attribute__((packed));
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struct mem_dev {
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struct tstruct_header header;
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uint16_t pma_handle;
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uint16_t err_handle;
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uint16_t tot_width;
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uint16_t dat_width;
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uint16_t size;
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uint8_t form;
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uint8_t set;
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uint8_t dev_locator;
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uint8_t bank_locator;
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uint8_t type;
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uint16_t typedetail;
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uint16_t speed;
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uint8_t manufacturer;
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uint8_t serialnum;
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uint8_t asset;
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uint8_t partnum;
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uint8_t attributes;
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uint8_t ext_size;
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uint8_t conf_ram_speed;
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uint8_t min_voltage;
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uint8_t max_votage;
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uint8_t conf_voltage;
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} __attribute__((packed));
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/**
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* Memory device Structure (used for SPD decoding)
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*/
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extern struct mem_dev *dmi_memory_device;
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/**
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* Initialize SMBIOS/DMI (locate struct)
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*/
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int smbios_init(void);
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/**
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* Print DMI
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*/
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void print_smbios_startup_info(void);
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#endif // SMBIOS_H
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