lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 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 | |
| 27 | struct 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 | |
| 34 | struct 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 |
| 120 | extern int __adjtimex (struct timex *__ntx) __THROW; |
| 121 | #endif |
| 122 | extern int adjtimex (struct timex *__ntx) __THROW; |
| 123 | libc_hidden_proto(adjtimex) |
| 124 | |
| 125 | #if defined __UCLIBC_NTP_LEGACY__ |
| 126 | extern int ntp_gettime (struct ntptimeval *__ntv) __THROW; |
| 127 | extern int ntp_adjtime (struct timex *__tntx) __THROW; |
| 128 | #endif |
| 129 | |
| 130 | __END_DECLS |
| 131 | |
| 132 | #endif /* sys/timex.h */ |