The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/dev/clockctl.c

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: clockctl.c,v 1.23 2007/11/25 00:35:27 elad 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 1.23 2007/11/25 00:35:27 elad 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, D_OTHER,
   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(
   73     dev_t dev,
   74     u_long cmd,
   75     void *data,
   76     int flags,
   77     struct lwp *l)
   78 {
   79         int error = 0;
   80 
   81         switch (cmd) {
   82                 case CLOCKCTL_SETTIMEOFDAY: {
   83                         struct clockctl_settimeofday *args =
   84                             (struct clockctl_settimeofday *)data;
   85 
   86                         error = settimeofday1(args->tv, true, args->tzp, l, false);
   87                         if (error)
   88                                 return (error);
   89                         break;
   90                 }
   91                 case CLOCKCTL_ADJTIME: {
   92                         struct clockctl_adjtime *args =
   93                             (struct clockctl_adjtime *)data;
   94 
   95                         error = adjtime1(args->delta, args->olddelta,
   96                             l->l_proc);
   97                         if (error)
   98                                 return (error);
   99                         break;
  100                 }
  101                 case CLOCKCTL_CLOCK_SETTIME: {
  102                         struct clockctl_clock_settime *args =
  103                             (struct clockctl_clock_settime *)data;
  104 
  105                         error = clock_settime1(l->l_proc, args->clock_id,
  106                             args->tp, false);
  107                         if (error)
  108                                 return (error);
  109                         break;
  110                 }
  111 #ifdef NTP
  112                 case CLOCKCTL_NTP_ADJTIME: {
  113                         struct clockctl_ntp_adjtime *args =
  114                             (struct clockctl_ntp_adjtime *)data;
  115                         struct timex ntv;
  116                         register_t retval;
  117 
  118                         error = copyin(args->tp, &ntv, sizeof(ntv));
  119                         if (error)
  120                                 return (error);
  121 
  122                         ntp_adjtime1(&ntv);
  123 
  124                         error = copyout(&ntv, args->tp, sizeof(ntv));
  125                         if (error == 0)
  126                                 (void)copyout(&retval, &args->retval, sizeof(retval));
  127 
  128                         return (error);
  129                 }
  130 #endif /* NTP */
  131                 default:
  132                         error = EINVAL;
  133         }
  134 
  135         return (error);
  136 }
  137 
  138 

Cache object: fdf0cf2c95aec44dcc5b38f7c3f50b00


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.