139 lines
3.6 KiB
C
139 lines
3.6 KiB
C
/* $NetBSD: clockctl.c,v 1.22 2007/05/12 20:27:13 dsl Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: clockctl.c,v 1.22 2007/05/12 20:27:13 dsl Exp $");
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#include "opt_ntp.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/time.h>
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#include <sys/conf.h>
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#ifdef NTP
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#include <sys/timex.h>
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#endif /* NTP */
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#include <sys/clockctl.h>
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struct clockctl_softc {
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struct device clockctl_dev;
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};
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dev_type_ioctl(clockctlioctl);
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const struct cdevsw clockctl_cdevsw = {
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nullopen, nullclose, noread, nowrite, clockctlioctl,
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nostop, notty, nopoll, nommap, nokqfilter, D_OTHER,
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};
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/*ARGSUSED*/
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void
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clockctlattach(int num)
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{
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/* Nothing to set up before open is called */
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return;
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}
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int
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clockctlioctl(
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dev_t dev,
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u_long cmd,
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void *data,
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int flags,
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struct lwp *l)
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{
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int error = 0;
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switch (cmd) {
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case CLOCKCTL_SETTIMEOFDAY: {
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struct clockctl_settimeofday *args =
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(struct clockctl_settimeofday *)data;
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error = settimeofday1(args->tv, true, args->tzp, l, false);
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if (error)
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return (error);
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break;
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}
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case CLOCKCTL_ADJTIME: {
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struct clockctl_adjtime *args =
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(struct clockctl_adjtime *)data;
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error = adjtime1(args->delta, args->olddelta,
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l->l_proc);
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if (error)
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return (error);
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break;
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}
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case CLOCKCTL_CLOCK_SETTIME: {
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struct clockctl_clock_settime *args =
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(struct clockctl_clock_settime *)data;
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error = clock_settime1(l->l_proc, args->clock_id,
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args->tp);
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if (error)
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return (error);
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break;
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}
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#ifdef NTP
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case CLOCKCTL_NTP_ADJTIME: {
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struct clockctl_ntp_adjtime *args =
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(struct clockctl_ntp_adjtime *)data;
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struct timex ntv;
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register_t retval;
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error = copyin(args->tp, &ntv, sizeof(ntv));
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if (error)
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return (error);
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ntp_adjtime1(&ntv);
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error = copyout(&ntv, args->tp, sizeof(ntv));
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if (error == 0)
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(void)copyout(&retval, &args->retval, sizeof(retval));
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return (error);
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}
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#endif /* NTP */
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default:
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error = EINVAL;
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}
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return (error);
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}
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