smapi.h revision 331722 
1/*-
2 * Copyright (c) 2003 Matthew N. Dodd <winter@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/11/sys/i386/include/smapi.h 331722 2018-03-29 02:50:57Z eadler $
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_ */
92