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/clock_subr.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*      $NetBSD: clock_subr.h,v 1.10 2003/07/18 21:41:24 thorpej Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Gordon W. Ross
    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. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 #ifndef _DEV_CLOCK_SUBR_H_
   40 #define _DEV_CLOCK_SUBR_H_
   41 
   42 /*
   43  * "POSIX time" to/from "YY/MM/DD/hh/mm/ss"
   44  */
   45 struct clock_ymdhms {
   46         u_short dt_year;
   47         u_char dt_mon;
   48         u_char dt_day;
   49         u_char dt_wday; /* Day of week */
   50         u_char dt_hour;
   51         u_char dt_min;
   52         u_char dt_sec;
   53 };
   54 
   55 time_t  clock_ymdhms_to_secs __P((struct clock_ymdhms *));
   56 void    clock_secs_to_ymdhms __P((time_t, struct clock_ymdhms *));
   57 
   58 /*
   59  * BCD to decimal and decimal to BCD.
   60  */
   61 #define FROMBCD(x)      (((x) >> 4) * 10 + ((x) & 0xf))
   62 #define TOBCD(x)        (((x) / 10 * 16) + ((x) % 10))
   63 
   64 /* Some handy constants. */
   65 #define SECDAY          (24 * 60 * 60)
   66 #define SECYR           (SECDAY * 365)
   67 
   68 /* Traditional POSIX base year */
   69 #define POSIX_BASE_YEAR 1970
   70 
   71 /*
   72  * Interface to time-of-day clock devices.
   73  *
   74  * todr_gettime: convert time-of-day clock into a `struct timeval'
   75  * todr_settime: set time-of-day clock from a `struct timeval'
   76  * todr_getcal: get current TOD clock calibration value in ppm
   77  * todr_setcal: set calibration value in ppm in TOD clock
   78  *
   79  * (this is probably not so useful:)
   80  * todr_setwen: provide a machine-dependent TOD clock write-enable callback
   81  *              function which takes one boolean argument:
   82  *                      1 to enable writes; 0 to disable writes.
   83  */
   84 struct todr_chip_handle {
   85         void    *cookie;        /* Device specific data */
   86         void    *bus_cookie;    /* Bus specific data */
   87 
   88         int     (*todr_gettime)(struct todr_chip_handle *, struct timeval *);
   89         int     (*todr_settime)(struct todr_chip_handle *, struct timeval *);
   90         int     (*todr_getcal)(struct todr_chip_handle *, int *);
   91         int     (*todr_setcal)(struct todr_chip_handle *, int);
   92         int     (*todr_setwen)(struct todr_chip_handle *, int);
   93 };
   94 typedef struct todr_chip_handle *todr_chip_handle_t;
   95 
   96 #define todr_gettime(ct, t)     ((*(ct)->todr_gettime)(ct, t))
   97 #define todr_settime(ct, t)     ((*(ct)->todr_settime)(ct, t))
   98 #define todr_getcal(ct, vp)     ((*(ct)->todr_gettime)(ct, vp))
   99 #define todr_setcal(ct, v)      ((*(ct)->todr_settime)(ct, v))
  100 #define todr_wenable(ct, v)     if ((ct)->todr_setwen) \
  101                                         ((*(ct)->todr_setwen)(ct, v))
  102 
  103 /*
  104  * Machine-dependent function that machine-independent RTC drivers can
  105  * use to register their todr_chip_handle_t with inittodr()/resettodr().
  106  */
  107 void    todr_attach(todr_chip_handle_t);
  108 
  109 #endif /* _DEV_CLOCK_SUBR_H_ */

Cache object: 21fb348e092f43b55d5c55c2a6766926


[ 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.