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_ */