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