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[/] [or1k/] [trunk/] [linux/] [uClibc/] [include/] [sys/] [timex.h] - Blame information for rev 1765

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1 1325 phoenix 
/* Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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   02111-1307 USA.  */
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#ifndef _SYS_TIMEX_H
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#define _SYS_TIMEX_H    1
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#include <features.h>
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#include <sys/time.h>
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/* These definitions from linux/timex.h as of 2.2.0.  */
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struct ntptimeval
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{
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  struct timeval time;  /* current time (ro) */
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  long int maxerror;    /* maximum error (us) (ro) */
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  long int esterror;    /* estimated error (us) (ro) */
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};
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struct timex
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{
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  unsigned int modes;   /* mode selector */
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  long int offset;      /* time offset (usec) */
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  long int freq;        /* frequency offset (scaled ppm) */
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  long int maxerror;    /* maximum error (usec) */
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  long int esterror;    /* estimated error (usec) */
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  int status;           /* clock command/status */
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  long int constant;    /* pll time constant */
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  long int precision;   /* clock precision (usec) (read only) */
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  long int tolerance;   /* clock frequency tolerance (ppm) (read only) */
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  struct timeval time;  /* (read only) */
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  long int tick;        /* (modified) usecs between clock ticks */
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  long int ppsfreq;     /* pps frequency (scaled ppm) (ro) */
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  long int jitter;      /* pps jitter (us) (ro) */
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  int shift;            /* interval duration (s) (shift) (ro) */
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  long int stabil;      /* pps stability (scaled ppm) (ro) */
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  long int jitcnt;      /* jitter limit exceeded (ro) */
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  long int calcnt;      /* calibration intervals (ro) */
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  long int errcnt;      /* calibration errors (ro) */
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  long int stbcnt;      /* stability limit exceeded (ro) */
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  /* ??? */
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  int  :32; int  :32; int  :32; int  :32;
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  int  :32; int  :32; int  :32; int  :32;
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  int  :32; int  :32; int  :32; int  :32;
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};
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/* Mode codes (timex.mode) */
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#define ADJ_OFFSET              0x0001  /* time offset */
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#define ADJ_FREQUENCY           0x0002  /* frequency offset */
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#define ADJ_MAXERROR            0x0004  /* maximum time error */
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#define ADJ_ESTERROR            0x0008  /* estimated time error */
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#define ADJ_STATUS              0x0010  /* clock status */
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#define ADJ_TIMECONST           0x0020  /* pll time constant */
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#define ADJ_TICK                0x4000  /* tick value */
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#define ADJ_OFFSET_SINGLESHOT   0x8001  /* old-fashioned adjtime */
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/* xntp 3.4 compatibility names */
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#define MOD_OFFSET      ADJ_OFFSET
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#define MOD_FREQUENCY   ADJ_FREQUENCY
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#define MOD_MAXERROR    ADJ_MAXERROR
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#define MOD_ESTERROR    ADJ_ESTERROR
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#define MOD_STATUS      ADJ_STATUS
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#define MOD_TIMECONST   ADJ_TIMECONST
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#define MOD_CLKB        ADJ_TICK
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#define MOD_CLKA        ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */
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/* Status codes (timex.status) */
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#define STA_PLL         0x0001  /* enable PLL updates (rw) */
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#define STA_PPSFREQ     0x0002  /* enable PPS freq discipline (rw) */
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#define STA_PPSTIME     0x0004  /* enable PPS time discipline (rw) */
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#define STA_FLL         0x0008  /* select frequency-lock mode (rw) */
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#define STA_INS         0x0010  /* insert leap (rw) */
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#define STA_DEL         0x0020  /* delete leap (rw) */
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#define STA_UNSYNC      0x0040  /* clock unsynchronized (rw) */
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#define STA_FREQHOLD    0x0080  /* hold frequency (rw) */
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#define STA_PPSSIGNAL   0x0100  /* PPS signal present (ro) */
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#define STA_PPSJITTER   0x0200  /* PPS signal jitter exceeded (ro) */
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#define STA_PPSWANDER   0x0400  /* PPS signal wander exceeded (ro) */
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#define STA_PPSERROR    0x0800  /* PPS signal calibration error (ro) */
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#define STA_CLOCKERR    0x1000  /* clock hardware fault (ro) */
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#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
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    STA_PPSERROR | STA_CLOCKERR) /* read-only bits */
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/* Clock states (time_state) */
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#define TIME_OK         0        /* clock synchronized, no leap second */
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#define TIME_INS        1       /* insert leap second */
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#define TIME_DEL        2       /* delete leap second */
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#define TIME_OOP        3       /* leap second in progress */
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#define TIME_WAIT       4       /* leap second has occurred */
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#define TIME_ERROR      5       /* clock not synchronized */
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#define TIME_BAD        TIME_ERROR /* bw compat */
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/* Maximum time constant of the PLL.  */
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#define MAXTC           6
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__BEGIN_DECLS
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extern int __adjtimex (struct timex *__ntx) __THROW;
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extern int adjtimex (struct timex *__ntx) __THROW;
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extern int ntp_gettime (struct ntptimeval *__ntv) __THROW;
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extern int ntp_adjtime (struct timex *__tntx) __THROW;
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__END_DECLS
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#endif /* sys/timex.h */

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