FreeBSD/Linux Kernel Cross Reference
sys/dev/clockctl.c
1 /* $NetBSD: clockctl.c,v 1.13 2005/02/27 00:26:58 perry Exp $ */
2
3 /*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Emmanuel Dreyfus.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 __KERNEL_RCSID(0, "$NetBSD: clockctl.c,v 1.13 2005/02/27 00:26:58 perry Exp $");
35
36 #include "opt_ntp.h"
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/proc.h>
41 #include <sys/errno.h>
42 #include <sys/ioctl.h>
43 #include <sys/device.h>
44 #include <sys/time.h>
45 #include <sys/conf.h>
46 #ifdef NTP
47 #include <sys/timex.h>
48 #endif /* NTP */
49
50 #include <sys/clockctl.h>
51
52 struct clockctl_softc {
53 struct device clockctl_dev;
54 };
55
56 dev_type_ioctl(clockctlioctl);
57
58 const struct cdevsw clockctl_cdevsw = {
59 nullopen, nullclose, noread, nowrite, clockctlioctl,
60 nostop, notty, nopoll, nommap, nokqfilter,
61 };
62
63 /*ARGSUSED*/
64 void
65 clockctlattach(int num)
66 {
67 /* Nothing to set up before open is called */
68 return;
69 }
70
71 int
72 clockctlioctl(dev, cmd, data, flags, p)
73 dev_t dev;
74 u_long cmd;
75 caddr_t data;
76 int flags;
77 struct proc *p;
78 {
79 int error = 0;
80
81 switch (cmd) {
82 case CLOCKCTL_SETTIMEOFDAY: {
83 struct sys_settimeofday_args *args =
84 (struct sys_settimeofday_args *)data;
85
86 error = settimeofday1(SCARG(args, tv),
87 SCARG(args, tzp), p);
88 if (error)
89 return (error);
90 break;
91 }
92 case CLOCKCTL_ADJTIME: {
93 struct sys_adjtime_args *args =
94 (struct sys_adjtime_args *)data;
95
96 error = adjtime1(SCARG(args, delta),
97 SCARG(args, olddelta), p);
98 if (error)
99 return (error);
100 break;
101 }
102 case CLOCKCTL_CLOCK_SETTIME: {
103 struct sys_clock_settime_args *args =
104 (struct sys_clock_settime_args *)data;
105
106 error = clock_settime1(SCARG(args, clock_id),
107 SCARG(args, tp));
108 if (error)
109 return (error);
110 break;
111 }
112 #ifdef NTP
113 case CLOCKCTL_NTP_ADJTIME: {
114 struct clockctl_ntp_adjtime_args *args =
115 (struct clockctl_ntp_adjtime_args *)data;
116 struct timex ntv;
117
118 error = copyin((caddr_t)SCARG(args,uas.tp),
119 (caddr_t)&ntv, sizeof(ntv));
120 if (error)
121 return (error);
122
123 error = ntp_adjtime1(&ntv, args, &args->retval);
124 return (error);
125 }
126 #endif /* NTP */
127 default:
128 error = EINVAL;
129 }
130
131 return (error);
132 }
133
134
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