1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
/*-
* 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);
|
