1/* Copyright (C) 1995-2020 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, see 
16 <https://www.gnu.org/licenses/>. */ 
17 
18#ifndef _BITS_TIMEX_H 
19#define _BITS_TIMEX_H 1 
20 
21#include <bits/types.h> 
22#include <bits/types/struct_timeval.h> 
23 
24/* These definitions from linux/timex.h as of 3.18. */ 
25 
26struct timex 
27{ 
28 unsigned int modes; /* mode selector */ 
29 __syscall_slong_t offset; /* time offset (usec) */ 
30 __syscall_slong_t freq; /* frequency offset (scaled ppm) */ 
31 __syscall_slong_t maxerror; /* maximum error (usec) */ 
32 __syscall_slong_t esterror; /* estimated error (usec) */ 
33 int status; /* clock command/status */ 
34 __syscall_slong_t constant; /* pll time constant */ 
35 __syscall_slong_t precision; /* clock precision (usec) (ro) */ 
36 __syscall_slong_t tolerance; /* clock frequency tolerance (ppm) (ro) */ 
37 struct timeval time; /* (read only, except for ADJ_SETOFFSET) */ 
38 __syscall_slong_t tick; /* (modified) usecs between clock ticks */ 
39 __syscall_slong_t ppsfreq; /* pps frequency (scaled ppm) (ro) */ 
40 __syscall_slong_t jitter; /* pps jitter (us) (ro) */ 
41 int shift; /* interval duration (s) (shift) (ro) */ 
42 __syscall_slong_t stabil; /* pps stability (scaled ppm) (ro) */ 
43 __syscall_slong_t jitcnt; /* jitter limit exceeded (ro) */ 
44 __syscall_slong_t calcnt; /* calibration intervals (ro) */ 
45 __syscall_slong_t errcnt; /* calibration errors (ro) */ 
46 __syscall_slong_t stbcnt; /* stability limit exceeded (ro) */ 
47 
48 int tai; /* TAI offset (ro) */ 
49 
50 /* ??? */ 
51 int :32; int :32; int :32; int :32; 
52 int :32; int :32; int :32; int :32; 
53 int :32; int :32; int :32; 
54}; 
55 
56/* Mode codes (timex.mode) */ 
57#define ADJ_OFFSET 0x0001 /* time offset */ 
58#define ADJ_FREQUENCY 0x0002 /* frequency offset */ 
59#define ADJ_MAXERROR 0x0004 /* maximum time error */ 
60#define ADJ_ESTERROR 0x0008 /* estimated time error */ 
61#define ADJ_STATUS 0x0010 /* clock status */ 
62#define ADJ_TIMECONST 0x0020 /* pll time constant */ 
63#define ADJ_TAI 0x0080 /* set TAI offset */ 
64#define ADJ_SETOFFSET 0x0100 /* add 'time' to current time */ 
65#define ADJ_MICRO 0x1000 /* select microsecond resolution */ 
66#define ADJ_NANO 0x2000 /* select nanosecond resolution */ 
67#define ADJ_TICK 0x4000 /* tick value */ 
68#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */ 
69#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */ 
70 
71/* xntp 3.4 compatibility names */ 
72#define MOD_OFFSET ADJ_OFFSET 
73#define MOD_FREQUENCY ADJ_FREQUENCY 
74#define MOD_MAXERROR ADJ_MAXERROR 
75#define MOD_ESTERROR ADJ_ESTERROR 
76#define MOD_STATUS ADJ_STATUS 
77#define MOD_TIMECONST ADJ_TIMECONST 
78#define MOD_CLKB ADJ_TICK 
79#define MOD_CLKA ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */ 
80#define MOD_TAI ADJ_TAI 
81#define MOD_MICRO ADJ_MICRO 
82#define MOD_NANO ADJ_NANO 
83 
84 
85/* Status codes (timex.status) */ 
86#define STA_PLL 0x0001 /* enable PLL updates (rw) */ 
87#define STA_PPSFREQ 0x0002 /* enable PPS freq discipline (rw) */ 
88#define STA_PPSTIME 0x0004 /* enable PPS time discipline (rw) */ 
89#define STA_FLL 0x0008 /* select frequency-lock mode (rw) */ 
90 
91#define STA_INS 0x0010 /* insert leap (rw) */ 
92#define STA_DEL 0x0020 /* delete leap (rw) */ 
93#define STA_UNSYNC 0x0040 /* clock unsynchronized (rw) */ 
94#define STA_FREQHOLD 0x0080 /* hold frequency (rw) */ 
95 
96#define STA_PPSSIGNAL 0x0100 /* PPS signal present (ro) */ 
97#define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) */ 
98#define STA_PPSWANDER 0x0400 /* PPS signal wander exceeded (ro) */ 
99#define STA_PPSERROR 0x0800 /* PPS signal calibration error (ro) */ 
100 
101#define STA_CLOCKERR 0x1000 /* clock hardware fault (ro) */ 
102#define STA_NANO 0x2000 /* resolution (0 = us, 1 = ns) (ro) */ 
103#define STA_MODE 0x4000 /* mode (0 = PLL, 1 = FLL) (ro) */ 
104#define STA_CLK 0x8000 /* clock source (0 = A, 1 = B) (ro) */ 
105 
106/* Read-only bits */ 
107#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER \ 
108 | STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK) 
109 
110#endif /* bits/timex.h */ 
111