/*      $NetBSD: smbios.h,v 1.1 2019/11/30 13:02:18 jmcneill Exp $ */
/*
* Copyright (c) 2006 Gordon Willem Klok <[email protected]>
* Copyright (c) 2005 Jordan Hargrave
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#define SMBIOS_UUID_NPRESENT            0x1
#define SMBIOS_UUID_NSET                0x2

/*
* Section 3.5 of "UUIDs and GUIDs" found at
* http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt
* specifies the string repersentation of a UUID.
*/
#define SMBIOS_UUID_REP "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
#define SMBIOS_UUID_REPLEN 37 /* 16 zero padded values, 4 hyphens, 1 null */

struct smbios_entry {
       uint8_t         rev;
       uint8_t         mjr;
       uint8_t         min;
       uint8_t         doc;
       uint8_t         *addr;
       uint32_t        len;
       uint16_t        count;
};

struct smbhdr {
       uint32_t        sig;            /* "_SM_" */
       uint8_t         checksum;       /* Entry point checksum */
       uint8_t         len;            /* Entry point structure length */
       uint8_t         majrev;         /* Specification major revision */
       uint8_t         minrev;         /* Specification minor revision */
       uint16_t        mss;            /* Maximum Structure Size */
       uint8_t         epr;            /* Entry Point Revision */
       uint8_t         fa[5];          /* value determined by EPR */
       uint8_t         sasig[5];       /* Secondary Anchor "_DMI_" */
       uint8_t         sachecksum;     /* Secondary Checksum */
       uint16_t        size;           /* Length of structure table in bytes */
       uint32_t        addr;           /* Structure table address */
       uint16_t        count;          /* Number of SMBIOS structures */
       uint8_t         rev;            /* BCD revision */
} __packed;

struct smb3hdr {
       uint8_t         sig[5];         /* "_SM3_" */
       uint8_t         checksum;       /* Entry point structure checksum */
       uint8_t         len;            /* Entry point structure length */
       uint8_t         majrev;         /* Specification major revision */
       uint8_t         minrev;         /* Specification minor revision */
       uint8_t         docrev;         /* docrec of Specification */
       uint8_t         eprev;          /* Entry point structure revision */
#define SMBIOS3_EPREV_RESERVED  0
#define SMBIOS3_EPREV_3_0       1       /* SMBIOS 3.0 */
       uint8_t         reverved;
       uint32_t        size;           /* Length of structure table in bytes */
       uint64_t        addr;           /* Structure table address */
} __packed;

struct smbtblhdr {
       uint8_t type;
       uint8_t size;
       uint16_t        handle;
} __packed;

struct smbtable {
       struct smbtblhdr *hdr;
       void             *tblhdr;
       uint32_t         cookie;
};

#define SMBIOS_TYPE_BIOS                0
#define SMBIOS_TYPE_SYSTEM              1
#define SMBIOS_TYPE_BASEBOARD           2
#define SMBIOS_TYPE_ENCLOSURE           3
#define SMBIOS_TYPE_PROCESSOR           4
#define SMBIOS_TYPE_MEMCTRL             5
#define SMBIOS_TYPE_MEMMOD              6
#define SMBIOS_TYPE_CACHE               7
#define SMBIOS_TYPE_PORT                8
#define SMBIOS_TYPE_SLOTS               9
#define SMBIOS_TYPE_OBD                 10
#define SMBIOS_TYPE_OEM                 11
#define SMBIOS_TYPE_SYSCONFOPT          12
#define SMBIOS_TYPE_BIOSLANG            13
#define SMBIOS_TYPE_GROUPASSOC          14
#define SMBIOS_TYPE_SYSEVENTLOG         15
#define SMBIOS_TYPE_PHYMEM              16
#define SMBIOS_TYPE_MEMDEV              17
#define SMBIOS_TYPE_ECCINFO32           18
#define SMBIOS_TYPE_MEMMAPARRAYADDR     19
#define SMBIOS_TYPE_MEMMAPDEVADDR       20
#define SMBIOS_TYPE_INBUILTPOINT        21
#define SMBIOS_TYPE_PORTBATT            22
#define SMBIOS_TYPE_SYSRESET            23
#define SMBIOS_TYPE_HWSECUIRTY          24
#define SMBIOS_TYPE_PWRCTRL             25
#define SMBIOS_TYPE_VOLTPROBE           26
#define SMBIOS_TYPE_COOLING             27
#define SMBIOS_TYPE_TEMPPROBE           28
#define SMBIOS_TYPE_CURRENTPROBE        29
#define SMBIOS_TYPE_OOB_REMOTEACCESS    30
#define SMBIOS_TYPE_BIS                 31
#define SMBIOS_TYPE_SBI                 32
#define SMBIOS_TYPE_ECCINFO64           33
#define SMBIOS_TYPE_MGMTDEV             34
#define SMBIOS_TYPE_MGTDEVCOMP          35
#define SMBIOS_TYPE_MGTDEVTHRESH        36
#define SMBIOS_TYPE_MEMCHANNEL          37
#define SMBIOS_TYPE_IPMIDEV             38
#define SMBIOS_TYPE_SPS                 39
#define SMBIOS_TYPE_INACTIVE            126
#define SMBIOS_TYPE_EOT                 127

/*
* SMBIOS Structure Type 0 "BIOS Information"
* DMTF Specification DSP0134 Section: 3.3.1 p.g. 34
*/
struct smbios_struct_bios {
       uint8_t vendor;         /* string */
       uint8_t version;        /* string */
       uint16_t        startaddr;
       uint8_t release;        /* string */
       uint8_t romsize;
       uint64_t        characteristics;
       uint32_t        charext;
       uint8_t major_rel;
       uint8_t minor_rel;
       uint8_t ecf_mjr_rel;    /* embedded controller firmware */
       uint8_t         ecf_min_rel;    /* embedded controller firmware */
} __packed;

/*
* SMBIOS Structure Type 1 "System Information"
* DMTF Specification DSP0134 Section 3.3.2 p.g. 35
*/

struct smbios_sys {
/* SMBIOS spec 2.0+ */
       uint8_t vendor;         /* string */
       uint8_t product;        /* string */
       uint8_t version;        /* string */
       uint8_t serial;         /* string */
/* SMBIOS spec 2.1+ */
       uint8_t uuid[16];
       uint8_t wakeup;
/* SMBIOS spec 2.4+ */
       uint8_t sku;            /* string */
       uint8_t family;         /* string */
} __packed;

/*
* SMBIOS Structure Type 2 "Base Board (Module) Information"
* DMTF Specification DSP0134 Section 3.3.3 p.g. 37
*/
struct smbios_board {
       uint8_t vendor;         /* string */
       uint8_t product;        /* string */
       uint8_t version;        /* string */
       uint8_t serial;         /* string */
       uint8_t asset;          /* string */
       uint8_t feature;        /* feature flags */
       uint8_t location;       /* location in chassis */
       uint16_t        handle;         /* chassis handle */
       uint8_t type;           /* board type */
       uint8_t noc;            /* number of contained objects */
} __packed;

/*
* SMBIOS Structure Type 3 "System Enclosure or Chassis"
* DMTF Specification DSP0134 Section 3.1.1 p.g. 37
*/
struct smbios_chassis {
       uint8_t vendor;         /* string */
       uint8_t shape;
       uint8_t version;        /* string */
       uint8_t serial;         /* string */
       uint8_t asset;          /* string */
       uint8_t bustate;
       uint8_t psstate;
       uint8_t thstate;
       uint8_t security;
       uint32_t        oemdata;
       uint8_t height;
       uint8_t powercords;
       uint8_t noc;            /* number of contained objects */
} __packed;

/*
* SMBIOS Structure Type 4 "Processor Information"
* DMTF Specification DSP0134 Section 3.1.1 p.g. 42
*/
struct smbios_processor {
       uint8_t socket;         /* string */
       uint8_t type;
       uint8_t family;
       uint8_t vendor;         /* string */
       uint64_t        cpuid;
       uint8_t version;        /* string */
       uint8_t voltage;
       uint16_t        clkspeed;
       uint16_t        maxspeed;
       uint16_t        curspeed;
       uint8_t status;
       uint8_t upgrade;
       uint8_t l1cache;
       uint8_t l2cache;
       uint8_t l3cache;
       uint8_t serial;         /* string */
       uint8_t asset;          /* string */
       uint8_t part;           /* string */
       uint8_t cores;          /* cores per socket */
       uint8_t enabled;        /* enabled cores per socket */
       uint8_t threads;        /* threads per socket */
       uint16_t        characteristics;
       uint16_t        family2;        /* for values >= 255 */
       uint16_t        cores2;         /* for values >= 255 */
       uint16_t        enabled2;       /* for values >= 255 */
       uint16_t        threads2;       /* for values >= 255 */
} __packed;

/*
* SMBIOS Structure Type 9 "Expansion slot"
*/
struct smbios_slot {
       uint8_t         designation;
       uint8_t         type;
       uint8_t         width;
       uint8_t         usage;
       uint8_t         length;
       uint8_t         slotid[2];
       uint8_t         characteristics[2];
} __packed;

#define SMBIOS_SLOT_ISA         0x03
#define SMBIOS_SLOT_EISA        0x05

/*
* SMBIOS Structure Type 38 "IPMI Information"
* DMTF Specification DSP0134 Section 3.3.39 p.g. 91
*/
struct smbios_ipmi {
       uint8_t        smipmi_if_type;         /* IPMI Interface Type */
       uint8_t        smipmi_if_rev;          /* BCD IPMI Revision */
       uint8_t        smipmi_i2c_address;     /* I2C address of BMC */
       uint8_t        smipmi_nvram_address;   /* I2C address of NVRAM
                                                * storage */
       uint64_t       smipmi_base_address;    /* Base address of BMC (BAR
                                                * format */
       uint8_t        smipmi_base_flags;      /* Flags field:
                                                * bit 7:6 : register spacing
                                                *   00 = byte
                                                *   01 = dword
                                                *   02 = word
                                                * bit 4 : Lower bit BAR
                                                * bit 3 : IRQ valid
                                                * bit 2 : N/A
                                                * bit 1 : Interrupt polarity
                                                * bit 0 : Interrupt trigger */
       uint8_t        smipmi_irq;             /* IRQ if applicable */
} __packed;

void smbios_init(uint8_t *);
int smbios_find_table(uint8_t, struct smbtable *);
char *smbios_get_string(struct smbtable *, uint8_t, char *, size_t);

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