xref: /freebsd/contrib/ntp/kernel/sys/ppsclock.h (revision dd41de95a84d979615a2ef11df6850622bf6184e)
1 /*
2  * This software was developed by the Computer Systems Engineering group
3  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66.
4  *
5  * Copyright (c) 1992 The Regents of the University of California.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by the University of
19  *	California, Lawrence Berkeley Laboratory.
20  * 4. The name of the University may not be used to endorse or promote
21  *    products derived from this software without specific prior
22  *    written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34  * SUCH DAMAGE.
35  */
36 
37 #ifndef TIOCGPPSEV
38 #define PPSCLOCKSTR	"ppsclock"
39 
40 #ifndef HAVE_STRUCT_PPSCLOCKEV
41 struct ppsclockev {
42 	struct timeval tv;
43 	u_int serial;
44 };
45 #endif
46 
47 #if defined(__STDC__) || defined(SYS_HPUX)
48 #ifdef	_IOR
49 #define CIOGETEV        _IOR('C', 0, struct ppsclockev)	/* get last pps event */
50 #else	/* XXX SOLARIS is different */
51 #define	CIO	('C'<<8)
52 #define CIOGETEV        (CIO|0)		/* get last pps event */
53 #endif	/* _IOR */
54 #else	/* __STDC__ */
55 #ifdef	_IOR
56 #define CIOGETEV        _IOR(C, 0, struct ppsclockev)	/* get last pps event */
57 #else	/* XXX SOLARIS is different */
58 #define	CIO	('C'<<8)
59 #define CIOGETEV        (CIO|0)		/* get last pps event */
60 #endif	/* _IOR */
61 #endif	/* __STDC__ */
62 #else
63 #define CIOGETEV TIOCGPPSEV
64 #endif
65