1/* Copyright (C) 1995, 1996, 1997, 1999 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. */ 18 19#ifndef _SYS_TIMEX_H 20#define _SYS_TIMEX_H 1 21 22#include <features.h> 23#include <sys/time.h> 24 25/* These definitions from linux/timex.h as of 2.2.0. */ 26 27struct ntptimeval 28{ 29 struct timeval time; /* current time (ro) */ 30 long int maxerror; /* maximum error (us) (ro) */ 31 long int esterror; /* estimated error (us) (ro) */ 32}; 33 34struct timex 35{ 36 unsigned int modes; /* mode selector */ 37 long int offset; /* time offset (usec) */ 38 long int freq; /* frequency offset (scaled ppm) */ 39 long int maxerror; /* maximum error (usec) */ 40 long int esterror; /* estimated error (usec) */ 41 int status; /* clock command/status */ 42 long int constant; /* pll time constant */ 43 long int precision; /* clock precision (usec) (read only) */ 44 long int tolerance; /* clock frequency tolerance (ppm) (read only) */ 45 struct timeval time; /* (read only) */ 46 long int tick; /* (modified) usecs between clock ticks */ 47 48 long int ppsfreq; /* pps frequency (scaled ppm) (ro) */ 49 long int jitter; /* pps jitter (us) (ro) */ 50 int shift; /* interval duration (s) (shift) (ro) */ 51 long int stabil; /* pps stability (scaled ppm) (ro) */ 52 long int jitcnt; /* jitter limit exceeded (ro) */ 53 long int calcnt; /* calibration intervals (ro) */ 54 long int errcnt; /* calibration errors (ro) */ 55 long int stbcnt; /* stability limit exceeded (ro) */ 56 57 /* ??? */ 58 int :32; int :32; int :32; int :32; 59 int :32; int :32; int :32; int :32; 60 int :32; int :32; int :32; int :32; 61}; 62 63/* Mode codes (timex.mode) */ 64#define ADJ_OFFSET 0x0001 /* time offset */ 65#define ADJ_FREQUENCY 0x0002 /* frequency offset */ 66#define ADJ_MAXERROR 0x0004 /* maximum time error */ 67#define ADJ_ESTERROR 0x0008 /* estimated time error */ 68#define ADJ_STATUS 0x0010 /* clock status */ 69#define ADJ_TIMECONST 0x0020 /* pll time constant */ 70#define ADJ_TICK 0x4000 /* tick value */ 71#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */ 72 73/* xntp 3.4 compatibility names */ 74#define MOD_OFFSET ADJ_OFFSET 75#define MOD_FREQUENCY ADJ_FREQUENCY 76#define MOD_MAXERROR ADJ_MAXERROR 77#define MOD_ESTERROR ADJ_ESTERROR 78#define MOD_STATUS ADJ_STATUS 79#define MOD_TIMECONST ADJ_TIMECONST 80#define MOD_CLKB ADJ_TICK 81#define MOD_CLKA ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */ 82 83 84/* Status codes (timex.status) */ 85#define STA_PLL 0x0001 /* enable PLL updates (rw) */ 86#define STA_PPSFREQ 0x0002 /* enable PPS freq discipline (rw) */ 87#define STA_PPSTIME 0x0004 /* enable PPS time discipline (rw) */ 88#define STA_FLL 0x0008 /* select frequency-lock mode (rw) */ 89 90#define STA_INS 0x0010 /* insert leap (rw) */ 91#define STA_DEL 0x0020 /* delete leap (rw) */ 92#define STA_UNSYNC 0x0040 /* clock unsynchronized (rw) */ 93#define STA_FREQHOLD 0x0080 /* hold frequency (rw) */ 94 95#define STA_PPSSIGNAL 0x0100 /* PPS signal present (ro) */ 96#define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) */ 97#define STA_PPSWANDER 0x0400 /* PPS signal wander exceeded (ro) */ 98#define STA_PPSERROR 0x0800 /* PPS signal calibration error (ro) */ 99 100#define STA_CLOCKERR 0x1000 /* clock hardware fault (ro) */ 101 102#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \ 103 STA_PPSERROR | STA_CLOCKERR) /* read-only bits */ 104 105/* Clock states (time_state) */ 106#define TIME_OK 0 /* clock synchronized, no leap second */ 107#define TIME_INS 1 /* insert leap second */ 108#define TIME_DEL 2 /* delete leap second */ 109#define TIME_OOP 3 /* leap second in progress */ 110#define TIME_WAIT 4 /* leap second has occurred */ 111#define TIME_ERROR 5 /* clock not synchronized */ 112#define TIME_BAD TIME_ERROR /* bw compat */ 113 114/* Maximum time constant of the PLL. */ 115#define MAXTC 6 116 117__BEGIN_DECLS 118 119#if 0 120extern int __adjtimex (struct timex *__ntx) __THROW; 121#endif 122extern int adjtimex (struct timex *__ntx) __THROW; 123 124#if defined __UCLIBC_NTP_LEGACY__ 125extern int ntp_gettime (struct ntptimeval *__ntv) __THROW; 126extern int ntp_adjtime (struct timex *__tntx) __THROW; 127#endif 128 129__END_DECLS 130 131#endif /* sys/timex.h */ 132