09b7f77f9a
Move processing of PHC readings from sys_linux to hwclock, where statistics can be collected and filtering improved. In the PHC refclock driver accumulate the samples even if not in the external timestamping mode to update the context which will be needed for improved filtering.
52 lines
1.9 KiB
C
52 lines
1.9 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 linux driver
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*/
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#ifndef GOT_SYS_LINUX_H
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#define GOT_SYS_LINUX_H
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#include "sys.h"
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extern void SYS_Linux_Initialise(void);
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extern void SYS_Linux_Finalise(void);
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extern void SYS_Linux_DropRoot(uid_t uid, gid_t gid, SYS_ProcessContext context, int clock_control);
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extern void SYS_Linux_EnableSystemCallFilter(int level, SYS_ProcessContext context);
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extern int SYS_Linux_CheckKernelVersion(int req_major, int req_minor);
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extern int SYS_Linux_OpenPHC(const char *path, int phc_index);
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extern int SYS_Linux_GetPHCReadings(int fd, int nocrossts, int *reading_mode, int max_readings,
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struct timespec tss[][3]);
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extern int SYS_Linux_SetPHCExtTimestamping(int fd, int pin, int channel,
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int rising, int falling, int enable);
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extern int SYS_Linux_ReadPHCExtTimestamp(int fd, struct timespec *phc_ts, int *channel);
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#endif /* GOT_SYS_LINUX_H */
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