xref: /netbsd/sys/dev/keylock.h (revision 385b2e36)
1 /* $NetBSD: keylock.h,v 1.1 2009/08/15 09:43:58 mbalmer Exp $ */
2 
3 /*
4  * Copyright (c) 2009 Marc Balmer <marc@msys.ch>
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 ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #ifndef _SYS_KEYLOCK_H
29 #define _SYS_KEYLOCK_H
30 
31 #define KEYLOCK_ABSENT          0
32 #define KEYLOCK_TAMPER          1
33 #define KEYLOCK_OPEN            2
34 #define KEYLOCK_SEMIOPEN        3
35 #define KEYLOCK_SEMICLOSE	4
36 #define KEYLOCK_CLOSE           5
37 
38 #ifdef _KERNEL
39 /* Functions for keylock drivers */
40 extern int keylock_register(void *, int, int (*)(void *));
41 extern void keylock_unregister(void *, int (*)(void *));
42 
43 /* Functions to query the keylock state */
44 extern int keylock_state(void);
45 extern int keylock_position(void);
46 extern int keylock_num_positions(void);
47 #endif
48 
49 #endif /* _SYS_KEYLOCK_H */
50