clock_dev.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1993 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon 
   24  * the rights to redistribute these changes.
   25  */
   26 /*
   27  * HISTORY
   28  * $Log:        clock_dev.h,v $
   29  * Revision 2.2  93/11/17  19:05:40  dbg
   30  *      Created.
   31  *      [93/09/29            dbg]
   32  * 
   33  */
   34 
   35 #ifndef _DEVICE_CLOCK_DEV_H_
   36 #define _DEVICE_CLOCK_DEV_H_
   37 
   38 /*
   39  *      Common operations on clock devices.
   40  */
   41 
   42 #include <mach/machine/vm_types.h>
   43 #include <mach/vm_prot.h>
   44 #include <kern/clock.h>
   45 #include <device/device_types.h>
   46 #include <device/clock_status.h>
   47 
   48 /*
   49  *      Common clock routines.
   50  */
   51 extern io_return_t
   52 clock_open(
   53         mach_clock_t    clock);
   54 
   55 extern io_return_t
   56 clock_getstat(
   57         mach_clock_t    clock,
   58         dev_flavor_t    flavor,
   59         dev_status_t    stat,
   60         natural_t       *count);
   61 
   62 extern io_return_t
   63 clock_setstat(
   64         mach_clock_t    clock,
   65         dev_flavor_t    flavor,
   66         dev_status_t    stat,
   67         natural_t       count);
   68 
   69 extern vm_offset_t
   70 clock_map_page(
   71         mach_clock_t    clock,
   72         vm_offset_t     off,
   73         vm_prot_t       prot);
   74 
   75 /*
   76  *      Conversion between dates (Y/M/D H:M:S) and
   77  *      seconds since January 1, 1970 (our arbitrary
   78  *      time base)
   79  */
   80 extern natural_t
   81 ymd_to_seconds(
   82         int             year,
   83         int             month,
   84         int             day,
   85         int             hour,
   86         int             minute,
   87         int             second);
   88 
   89 extern void
   90 seconds_to_ymd(
   91         natural_t       seconds,
   92         int             *year,
   93         int             *month,
   94         int             *day,
   95         int             *hour,
   96         int             *minute,
   97         int             *second,
   98         int             *day_of_week);
   99 
  100 #endif  /* _DEVICE_CLOCK_DEV_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/device/clock_dev.h

FreeBSD/Linux Kernel Cross Reference
sys/device/clock_dev.h