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/*-
* Copyright (c) 1997 Michael Smith
* 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 AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
* from: i386/include/pc bios.h,v 1.2
*/
/*
* Signature structure for the BIOS32 Service Directory header
*/
struct bios32_SDheader
{
u_int8_t sig[4];
u_int32_t entry;
u_int8_t revision;
u_int8_t len;
u_int8_t cksum;
u_int8_t pad[5];
};
/*
* BIOS32 Service Directory entry. Caller supplies name, bios32_SDlookup
* fills in the rest of the details.
*/
struct bios32_SDentry
{
union
{
u_int8_t name[4]; /* service identifier */
u_int32_t id; /* as a 32-bit value */
} ident;
u_int32_t base; /* base of service */
u_int32_t len; /* service length */
u_int32_t entry; /* entrypoint offset from base */
};
extern int bios32_SDlookup(struct bios32_SDentry *ent);
extern u_int32_t bios_sigsearch(u_int32_t start, u_char *sig, int siglen,
int paralen, int sigofs);
/*
* Call a 32-bit BIOS function
*/
struct bios32_args {
u_long eax;
u_long ebx;
u_long ecx;
u_long edx;
};
extern void bios32(caddr_t func_addr, struct bios32_args *args);
#if 0
#define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase)
#define BIOS_VADDRTOPADDR(x) (((x) - atdevbase) + ISA_HOLE_START)
#else
#define BIOS_PADDRTOVADDR(x) (x)
#define BIOS_VADDRTOPADDR(x) (x)
#endif
/*
* System Management BIOS / Desktop Management Interface tables
*/
struct DMI_table
{
u_int8_t sig[5]; /* "_DMI_" */
u_int8_t cksum; /* checksum */
u_int16_t st_size; /* total length of SMBIOS table (bytes)*/
u_int32_t st_base; /* base address of the SMBIOS table (physical) */
u_int16_t st_entries; /* total number of structures present in the table */
u_int8_t bcd_revision; /* interface revision number */
};
struct SMBIOS_table
{
u_int8_t sig[4]; /* "_SM_" */
u_int8_t cksum; /* checksum */
u_int8_t len; /* structure length */
u_int8_t major, minor; /* major/minor revision numbers */
u_int16_t st_maxsize; /* largest structure size (bytes) */
u_int8_t revision; /* entrypoint revision */
u_int8_t pad[5];
struct DMI_table dmi; /* follows immediately */
};
/*
* Exported lookup results
*/
extern struct bios32_SDentry PCIbios;
extern struct SMBIOS_table *SMBIOS_table;
extern struct DMI_table *DMI_table;
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