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/* 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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