ec4542bbe4
Strip all slewing code (adjtime(), freq locked nano PLL, fast tick slewing) from the Linux driver and use the new generic frequency only slewing instead. The advantages include stable clock control with very short update intervals, good control of the slewing frequency, cheap cooking of raw time stamps and unlimited frequency offset.
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Richard P. Curnow 1997-2002
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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The header file for the adjtimex wrapper
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*/
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#ifndef GOT_WRAP_ADJTIMEX_H
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#define GOT_WRAP_ADJTIMEX_H
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/* Cut-down version of struct timex */
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struct tmx_params {
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long tick;
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long offset;
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long freq;
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double dfreq;
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long maxerror;
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long esterror;
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unsigned sta_pll:1;
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unsigned sta_ppsfreq:1;
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unsigned sta_ppstime:1;
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unsigned sta_fll:1;
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unsigned sta_ins:1;
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unsigned sta_del:1;
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unsigned sta_unsync:1;
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unsigned sta_freqhold:1;
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unsigned sta_ppssignal:1;
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unsigned sta_ppsjitter:1;
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unsigned sta_ppswander:1;
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unsigned sta_ppserror:1;
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unsigned sta_clockerr:1;
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int status;
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long constant;
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long precision;
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long tolerance;
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long ppsfreq;
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long jitter;
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int shift;
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long stabil;
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long jitcnt;
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long calcnt;
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long errcnt;
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long stbcnt;
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};
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int TMX_ResetOffset(void);
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int TMX_SetFrequency(double *freq, long tick);
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int TMX_GetFrequency(double *freq, long *tick);
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int TMX_ReadCurrentParams(struct tmx_params *params);
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int TMX_SetLeap(int leap);
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int TMX_SetSync(int sync);
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int TMX_TestStepOffset(void);
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int TMX_ApplyStepOffset(double offset);
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#endif /* GOT_WRAP_ADJTIMEX_H */
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