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'struct timex' is one of the last users of 'struct timeval' and is only referenced in one place in the kernel any more, to convert the user space timex into the kernel-internal version on sparc64, with a different tv_usec member type. As a preparation for hiding the time_t definition and everything using that in the kernel, change the implementation once more to only convert the timeval member, and then enclose the struct definition in an #ifdef. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
207 lines
7.7 KiB
C
207 lines
7.7 KiB
C
/*****************************************************************************
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* *
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* Copyright (c) David L. Mills 1993 *
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* *
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* Permission to use, copy, modify, and distribute this software and its *
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* documentation for any purpose and without fee is hereby granted, provided *
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* that the above copyright notice appears in all copies and that both the *
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* copyright notice and this permission notice appear in supporting *
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* documentation, and that the name University of Delaware not be used in *
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* advertising or publicity pertaining to distribution of the software *
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* without specific, written prior permission. The University of Delaware *
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* makes no representations about the suitability this software for any *
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* purpose. It is provided "as is" without express or implied warranty. *
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* *
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*****************************************************************************/
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/*
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* Modification history timex.h
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*
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* 29 Dec 97 Russell King
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* Moved CLOCK_TICK_RATE, CLOCK_TICK_FACTOR and FINETUNE to asm/timex.h
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* for ARM machines
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*
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* 9 Jan 97 Adrian Sun
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* Shifted LATCH define to allow access to alpha machines.
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*
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* 26 Sep 94 David L. Mills
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* Added defines for hybrid phase/frequency-lock loop.
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*
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* 19 Mar 94 David L. Mills
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* Moved defines from kernel routines to header file and added new
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* defines for PPS phase-lock loop.
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*
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* 20 Feb 94 David L. Mills
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* Revised status codes and structures for external clock and PPS
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* signal discipline.
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*
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* 28 Nov 93 David L. Mills
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* Adjusted parameters to improve stability and increase poll
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* interval.
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*
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* 17 Sep 93 David L. Mills
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* Created file $NTP/include/sys/timex.h
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* 07 Oct 93 Torsten Duwe
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* Derived linux/timex.h
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* 1995-08-13 Torsten Duwe
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* kernel PLL updated to 1994-12-13 specs (rfc-1589)
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* 1997-08-30 Ulrich Windl
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* Added new constant NTP_PHASE_LIMIT
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* 2004-08-12 Christoph Lameter
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* Reworked time interpolation logic
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*/
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#ifndef _UAPI_LINUX_TIMEX_H
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#define _UAPI_LINUX_TIMEX_H
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#include <linux/time.h>
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#define NTP_API 4 /* NTP API version */
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#ifndef __KERNEL__
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/*
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* syscall interface - used (mainly by NTP daemon)
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* to discipline kernel clock oscillator
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*/
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struct timex {
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unsigned int modes; /* mode selector */
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__kernel_long_t offset; /* time offset (usec) */
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__kernel_long_t freq; /* frequency offset (scaled ppm) */
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__kernel_long_t maxerror;/* maximum error (usec) */
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__kernel_long_t esterror;/* estimated error (usec) */
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int status; /* clock command/status */
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__kernel_long_t constant;/* pll time constant */
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__kernel_long_t precision;/* clock precision (usec) (read only) */
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__kernel_long_t tolerance;/* clock frequency tolerance (ppm)
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* (read only)
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*/
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struct timeval time; /* (read only, except for ADJ_SETOFFSET) */
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__kernel_long_t tick; /* (modified) usecs between clock ticks */
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__kernel_long_t ppsfreq;/* pps frequency (scaled ppm) (ro) */
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__kernel_long_t jitter; /* pps jitter (us) (ro) */
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int shift; /* interval duration (s) (shift) (ro) */
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__kernel_long_t stabil; /* pps stability (scaled ppm) (ro) */
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__kernel_long_t jitcnt; /* jitter limit exceeded (ro) */
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__kernel_long_t calcnt; /* calibration intervals (ro) */
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__kernel_long_t errcnt; /* calibration errors (ro) */
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__kernel_long_t stbcnt; /* stability limit exceeded (ro) */
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int tai; /* TAI offset (ro) */
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int :32; int :32; int :32; int :32;
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int :32; int :32; int :32; int :32;
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int :32; int :32; int :32;
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};
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#endif
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struct __kernel_timex_timeval {
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__kernel_time64_t tv_sec;
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long long tv_usec;
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};
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struct __kernel_timex {
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unsigned int modes; /* mode selector */
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int :32; /* pad */
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long long offset; /* time offset (usec) */
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long long freq; /* frequency offset (scaled ppm) */
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long long maxerror;/* maximum error (usec) */
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long long esterror;/* estimated error (usec) */
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int status; /* clock command/status */
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int :32; /* pad */
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long long constant;/* pll time constant */
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long long precision;/* clock precision (usec) (read only) */
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long long tolerance;/* clock frequency tolerance (ppm)
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* (read only)
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*/
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struct __kernel_timex_timeval time; /* (read only, except for ADJ_SETOFFSET) */
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long long tick; /* (modified) usecs between clock ticks */
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long long ppsfreq;/* pps frequency (scaled ppm) (ro) */
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long long jitter; /* pps jitter (us) (ro) */
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int shift; /* interval duration (s) (shift) (ro) */
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int :32; /* pad */
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long long stabil; /* pps stability (scaled ppm) (ro) */
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long long jitcnt; /* jitter limit exceeded (ro) */
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long long calcnt; /* calibration intervals (ro) */
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long long errcnt; /* calibration errors (ro) */
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long long stbcnt; /* stability limit exceeded (ro) */
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int tai; /* TAI offset (ro) */
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int :32; int :32; int :32; int :32;
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int :32; int :32; int :32; int :32;
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int :32; int :32; int :32;
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};
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/*
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* Mode codes (timex.mode)
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*/
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#define ADJ_OFFSET 0x0001 /* time offset */
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#define ADJ_FREQUENCY 0x0002 /* frequency offset */
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#define ADJ_MAXERROR 0x0004 /* maximum time error */
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#define ADJ_ESTERROR 0x0008 /* estimated time error */
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#define ADJ_STATUS 0x0010 /* clock status */
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#define ADJ_TIMECONST 0x0020 /* pll time constant */
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#define ADJ_TAI 0x0080 /* set TAI offset */
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#define ADJ_SETOFFSET 0x0100 /* add 'time' to current time */
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#define ADJ_MICRO 0x1000 /* select microsecond resolution */
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#define ADJ_NANO 0x2000 /* select nanosecond resolution */
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#define ADJ_TICK 0x4000 /* tick value */
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#ifndef __KERNEL__
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#define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */
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#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */
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#endif
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/* NTP userland likes the MOD_ prefix better */
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#define MOD_OFFSET ADJ_OFFSET
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#define MOD_FREQUENCY ADJ_FREQUENCY
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#define MOD_MAXERROR ADJ_MAXERROR
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#define MOD_ESTERROR ADJ_ESTERROR
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#define MOD_STATUS ADJ_STATUS
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#define MOD_TIMECONST ADJ_TIMECONST
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#define MOD_TAI ADJ_TAI
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#define MOD_MICRO ADJ_MICRO
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#define MOD_NANO ADJ_NANO
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/*
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* Status codes (timex.status)
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*/
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#define STA_PLL 0x0001 /* enable PLL updates (rw) */
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#define STA_PPSFREQ 0x0002 /* enable PPS freq discipline (rw) */
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#define STA_PPSTIME 0x0004 /* enable PPS time discipline (rw) */
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#define STA_FLL 0x0008 /* select frequency-lock mode (rw) */
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#define STA_INS 0x0010 /* insert leap (rw) */
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#define STA_DEL 0x0020 /* delete leap (rw) */
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#define STA_UNSYNC 0x0040 /* clock unsynchronized (rw) */
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#define STA_FREQHOLD 0x0080 /* hold frequency (rw) */
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#define STA_PPSSIGNAL 0x0100 /* PPS signal present (ro) */
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#define STA_PPSJITTER 0x0200 /* PPS signal jitter exceeded (ro) */
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#define STA_PPSWANDER 0x0400 /* PPS signal wander exceeded (ro) */
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#define STA_PPSERROR 0x0800 /* PPS signal calibration error (ro) */
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#define STA_CLOCKERR 0x1000 /* clock hardware fault (ro) */
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#define STA_NANO 0x2000 /* resolution (0 = us, 1 = ns) (ro) */
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#define STA_MODE 0x4000 /* mode (0 = PLL, 1 = FLL) (ro) */
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#define STA_CLK 0x8000 /* clock source (0 = A, 1 = B) (ro) */
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/* read-only bits */
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#define STA_RONLY (STA_PPSSIGNAL | STA_PPSJITTER | STA_PPSWANDER | \
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STA_PPSERROR | STA_CLOCKERR | STA_NANO | STA_MODE | STA_CLK)
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/*
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* Clock states (time_state)
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*/
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#define TIME_OK 0 /* clock synchronized, no leap second */
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#define TIME_INS 1 /* insert leap second */
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#define TIME_DEL 2 /* delete leap second */
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#define TIME_OOP 3 /* leap second in progress */
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#define TIME_WAIT 4 /* leap second has occurred */
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#define TIME_ERROR 5 /* clock not synchronized */
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#define TIME_BAD TIME_ERROR /* bw compat */
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#endif /* _UAPI_LINUX_TIMEX_H */
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