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timex.h
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/* Copyright (C) 1995-2018 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 _BITS_TIMEX_H #define _BITS_TIMEX_H 1 #include <bits/types.h> #include <bits/types/struct_timeval.h> /* These definitions from linux/timex.h as of 3.18. */ struct timex { unsigned int modes; /* mode selector */ __syscall_slong_t offset; /* time offset (usec) */ __syscall_slong_t freq; /* frequency offset (scaled ppm) */ __syscall_slong_t maxerror; /* maximum error (usec) */ __syscall_slong_t esterror; /* estimated error (usec) */ int status; /* clock command/status */ __syscall_slong_t constant; /* pll time constant */ __syscall_slong_t precision; /* clock precision (usec) (ro) */ __syscall_slong_t tolerance; /* clock frequency tolerance (ppm) (ro) */ struct timeval time; /* (read only, except for ADJ_SETOFFSET) */ __syscall_slong_t tick; /* (modified) usecs between clock ticks */ __syscall_slong_t ppsfreq; /* pps frequency (scaled ppm) (ro) */ __syscall_slong_t jitter; /* pps jitter (us) (ro) */ int shift; /* interval duration (s) (shift) (ro) */ __syscall_slong_t stabil; /* pps stability (scaled ppm) (ro) */ __syscall_slong_t jitcnt; /* jitter limit exceeded (ro) */ __syscall_slong_t calcnt; /* calibration intervals (ro) */ __syscall_slong_t errcnt; /* calibration errors (ro) */ __syscall_slong_t stbcnt; /* stability limit exceeded (ro) */ int tai; /* TAI offset (ro) */ /* ??? */ 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_TAI 0x0080 /* set TAI offset */ #define ADJ_SETOFFSET 0x0100 /* add 'time' to current time */ #define ADJ_MICRO 0x1000 /* select microsecond resolution */ #define ADJ_NANO 0x2000 /* select nanosecond resolution */ #define ADJ_TICK 0x4000 /* tick value */ #define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */ #define ADJ_OFFSET_SS_READ 0xa001 /* read-only 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 */ #define MOD_TAI ADJ_TAI #define MOD_MICRO ADJ_MICRO #define MOD_NANO ADJ_NANO /* 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_NANO 0x2000 /* resolution (0 = us, 1 = ns) (ro) */ #define STA_MODE 0x4000 /* mode (0 = PLL, 1 = FLL) (ro) */ #define STA_CLK 0x8000 /* clock source (0 = A, 1 = B) (ro) */ /* Read-only bits */ #define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \ STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK) #endif /* bits/timex.h */