1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2003 Matthew N. Dodd <winter@freebsd.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#ifndef _MACHINE_SMAPI_H_
30#define _MACHINE_SMAPI_H_
31
32#ifndef _KERNEL
33#include <sys/types.h>
34#endif
35#include <sys/ioccom.h>
36
37struct smapi_bios_header {
38 u_int8_t signature[4]; /* '$SMB' */
39 u_int8_t version_major;
40 u_int8_t version_minor;
41 u_int8_t length;
42 u_int8_t checksum;
43 u_int16_t information;
44#define SMAPI_REAL_VM86 0x0001
45#define SMAPI_PROT_16BIT 0x0002
46#define SMAPI_PROT_32BIT 0x0004
47 u_int16_t reserved1;
48
49 u_int16_t real16_offset;
50 u_int16_t real16_segment;
51
52 u_int16_t reserved2;
53
54 u_int16_t prot16_offset;
55 u_int32_t prot16_segment;
56
57 u_int32_t prot32_offset;
58 u_int32_t prot32_segment;
59
60} __packed;
61
62struct smapi_bios_parameter {
63 union {
64 struct {
65 u_int8_t func;
66 u_int8_t sub_func;
67 } in;
68 struct {
69 u_int8_t rc;
70 u_int8_t sub_rc;
71 } out;
72 } type;
73
74 u_int16_t param1;
75 u_int16_t param2;
76 u_int16_t param3;
77
78 u_int32_t param4;
79 u_int32_t param5;
80
81} __packed;
82
83#define cmd_func type.in.func
84#define cmd_sub_func type.in.sub_func
85#define rsp_rc type.out.rc
86#define rsp_sub_rc type.out.sub_rc
87
88#define SMAPIOGHEADER _IOR('$', 0, struct smapi_bios_header)
89#define SMAPIOCGFUNCTION _IOWR('$', 1, struct smapi_bios_parameter)
90
91#endif /* _MACHINE_SMAPI_H_ */