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001: /* Copyright (C) 1995-1997,1999,2007,2009,2011 Free Software Foundation, Inc.
002:    This file is part of the GNU C Library.
003: 
004:    The GNU C Library is free software; you can redistribute it and/or
005:    modify it under the terms of the GNU Lesser General Public
006:    License as published by the Free Software Foundation; either
007:    version 2.1 of the License, or (at your option) any later version.
008: 
009:    The GNU C Library is distributed in the hope that it will be useful,
010:    but WITHOUT ANY WARRANTY; without even the implied warranty of
011:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
012:    Lesser General Public License for more details.
013: 
014:    You should have received a copy of the GNU Lesser General Public
015:    License along with the GNU C Library; if not, write to the Free
016:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
017:    02111-1307 USA.  */
018: 
019: #ifndef _BITS_TIMEX_H
020: #define _BITS_TIMEX_H   1
021: 
022: /* These definitions from linux/timex.h as of 2.6.30.  */
023: 
024: struct timex
025: {
026:   unsigned int modes;   /* mode selector */
027:   long int offset;      /* time offset (usec) */
028:   long int freq;        /* frequency offset (scaled ppm) */
029:   long int maxerror;    /* maximum error (usec) */
030:   long int esterror;    /* estimated error (usec) */
031:   int status;           /* clock command/status */
032:   long int constant;    /* pll time constant */
033:   long int precision;   /* clock precision (usec) (read only) */
034:   long int tolerance;   /* clock frequency tolerance (ppm) (read only) */
035:   struct timeval time;  /* (read only) */
036:   long int tick;        /* (modified) usecs between clock ticks */
037: 
038:   long int ppsfreq;     /* pps frequency (scaled ppm) (ro) */
039:   long int jitter;      /* pps jitter (us) (ro) */
040:   int shift;            /* interval duration (s) (shift) (ro) */
041:   long int stabil;      /* pps stability (scaled ppm) (ro) */
042:   long int jitcnt;      /* jitter limit exceeded (ro) */
043:   long int calcnt;      /* calibration intervals (ro) */
044:   long int errcnt;      /* calibration errors (ro) */
045:   long int stbcnt;      /* stability limit exceeded (ro) */
046: 
047:   int tai;              /* TAI offset (ro) */
048: 
049:   /* ??? */
050:   int  :32; int  :32; int  :32; int  :32;
051:   int  :32; int  :32; int  :32; int  :32;
052:   int  :32; int  :32; int  :32;
053: };
054: 
055: /* Mode codes (timex.mode) */
056: #define ADJ_OFFSET              0x0001  /* time offset */
057: #define ADJ_FREQUENCY           0x0002  /* frequency offset */
058: #define ADJ_MAXERROR            0x0004  /* maximum time error */
059: #define ADJ_ESTERROR            0x0008  /* estimated time error */
060: #define ADJ_STATUS              0x0010  /* clock status */
061: #define ADJ_TIMECONST           0x0020  /* pll time constant */
062: #define ADJ_TAI                 0x0080  /* set TAI offset */
063: #define ADJ_MICRO               0x1000  /* select microsecond resolution */
064: #define ADJ_NANO                0x2000  /* select nanosecond resolution */
065: #define ADJ_TICK                0x4000  /* tick value */
066: #define ADJ_OFFSET_SINGLESHOT   0x8001  /* old-fashioned adjtime */
067: #define ADJ_OFFSET_SS_READ      0xa001  /* read-only adjtime */
068: 
069: /* xntp 3.4 compatibility names */
070: #define MOD_OFFSET      ADJ_OFFSET
071: #define MOD_FREQUENCY   ADJ_FREQUENCY
072: #define MOD_MAXERROR    ADJ_MAXERROR
073: #define MOD_ESTERROR    ADJ_ESTERROR
074: #define MOD_STATUS      ADJ_STATUS
075: #define MOD_TIMECONST   ADJ_TIMECONST
076: #define MOD_CLKB        ADJ_TICK
077: #define MOD_CLKA        ADJ_OFFSET_SINGLESHOT /* 0x8000 in original */
078: #define MOD_TAI         ADJ_TAI
079: #define MOD_MICRO       ADJ_MICRO
080: #define MOD_NANO        ADJ_NANO
081: 
082: 
083: /* Status codes (timex.status) */
084: #define STA_PLL         0x0001  /* enable PLL updates (rw) */
085: #define STA_PPSFREQ     0x0002  /* enable PPS freq discipline (rw) */
086: #define STA_PPSTIME     0x0004  /* enable PPS time discipline (rw) */
087: #define STA_FLL         0x0008  /* select frequency-lock mode (rw) */
088: 
089: #define STA_INS         0x0010  /* insert leap (rw) */
090: #define STA_DEL         0x0020  /* delete leap (rw) */
091: #define STA_UNSYNC      0x0040  /* clock unsynchronized (rw) */
092: #define STA_FREQHOLD    0x0080  /* hold frequency (rw) */
093: 
094: #define STA_PPSSIGNAL   0x0100  /* PPS signal present (ro) */
095: #define STA_PPSJITTER   0x0200  /* PPS signal jitter exceeded (ro) */
096: #define STA_PPSWANDER   0x0400  /* PPS signal wander exceeded (ro) */
097: #define STA_PPSERROR    0x0800  /* PPS signal calibration error (ro) */
098: 
099: #define STA_CLOCKERR    0x1000  /* clock hardware fault (ro) */
100: #define STA_NANO        0x2000  /* resolution (0 = us, 1 = ns) (ro) */
101: #define STA_MODE        0x4000  /* mode (0 = PLL, 1 = FLL) (ro) */
102: #define STA_CLK         0x8000  /* clock source (0 = A, 1 = B) (ro) */
103: 
104: /* Read-only bits */
105: #define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
106:     STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK)
107: 
108: #endif /* bits/timex.h */
109: 

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