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/*-
* Copyright (c) 1997 Michael Smith
* Copyright (c) 1998 Jonathan Lemon
* 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.
*
* $Id: bios.h,v 1.2 1997/08/04 03:31:23 msmith Exp $
*/
/*
* 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);
#define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase)
#define BIOS_VADDRTOPADDR(x) (((x) - atdevbase) + ISA_HOLE_START)
/*
* 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;
struct segment_info {
u_int base;
u_int limit;
};
#define BIOSCODE_FLAG 0x01
#define BIOSDATA_FLAG 0x02
#define BIOSUTIL_FLAG 0x04
#define BIOSARGS_FLAG 0x08
struct bios_segments {
u_int generation;
struct segment_info code32; /* 32-bit code (mandatory) */
struct segment_info code16; /* 16-bit code */
struct segment_info data; /* 16-bit data */
struct segment_info util; /* 16-bit utility */
struct segment_info args; /* 16-bit args */
};
struct bios_regs {
u_int eax;
u_int ebx;
u_int ecx;
u_int edx;
u_int esi;
u_int edi;
};
struct bios_args {
u_int entry; /* entry point of routine */
struct bios_regs r;
struct bios_segments seg;
};
/*
* format specifiers and defines for bios16()
* s = short (16 bits)
* i = int (32 bits)
* p = pointer (converted to seg:offset)
* C,D,U = selector (corresponding to code/data/utility segment)
*/
#define PNP_COUNT_DEVNODES "sppD", 0x00
#define PNP_GET_DEVNODE "sppsD", 0x01
#define PNP_SET_DEVNODE "sppsD", 0x02
#define PNP_GET_EVENT "spD", 0x03
#define PNP_SEND_MSG "ssD", 0x04
#define PNP_GET_DOCK_INFO "spD", 0x05
#define PNP_SEL_PRIBOOT "ssiiisspD", 0x07
#define PNP_GET_PRIBOOT "sspppppD", 0x08
#define PNP_SET_RESINFO "spD", 0x09
#define PNP_GET_RESINFO "spD", 0x0A
#define PNP_GET_APM_ID "sppD", 0x0B
#define PNP_GET_ISA_INFO "spD", 0x40
#define PNP_GET_ECSD_INFO "spppD", 0x41
#define PNP_READ_ESCD "spUD", 0x42
#define PNP_WRITE_ESCD "spUD", 0x43
#define PNP_GET_DMI_INFO "spppppD", 0x50
#define PNP_GET_DMI "sppUD", 0x51
#define PNP_BOOT_CHECK "sp", 0x60
#define PNP_COUNT_IPL "sppp", 0x61
#define PNP_GET_BOOTPRI "spp", 0x62
#define PNP_SET_BOOTPRI "sp", 0x63
#define PNP_GET_LASTBOOT "sp", 0x64
#define PNP_GET_BOOTFIRST "sp", 0x65
#define PNP_SET_BOOTFIRST "sp", 0x66
extern int bios16(struct bios_args *, char *, ...);
extern int bios16_call(struct bios_regs *, char *);
extern int bios32(struct bios_regs *, u_int, u_short);
extern void set_bios_selectors(struct bios_segments *, int);
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