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/**
* @file rtems/score/tod.inl
*
* This file contains the static inline implementation of the inlined routines
* from the Time of Day Handler.
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_SCORE_TOD_INL
#define _RTEMS_SCORE_TOD_INL
#include <rtems/score/isr.h>
/**
* @addtogroup ScoreTOD
* @{
*/
/**
*
* This routines adds two timespecs. The second argument is added
* to the first.
*/
RTEMS_INLINE_ROUTINE uint32_t _TOD_Add_timespec(
struct timespec *time,
struct timespec *add
)
{
uint32_t seconds = 0;
/* Add the basics */
time->tv_sec += add->tv_sec;
time->tv_nsec += add->tv_nsec;
/* Now adjust it so nanoseconds is in range */
while ( time->tv_nsec >= TOD_NANOSECONDS_PER_SECOND ) {
time->tv_nsec -= TOD_NANOSECONDS_PER_SECOND;
time->tv_sec++;
seconds++;
}
return seconds;
}
/**
* This routine increments the ticks field of the current time of
* day at each clock tick.
*/
RTEMS_INLINE_ROUTINE void _TOD_Tickle_ticks( void )
{
struct timespec tick;
uint32_t seconds;
/* Convert the tick quantum to a timespec */
tick.tv_nsec = _TOD_Microseconds_per_tick * 1000;
tick.tv_sec = 0;
/* Update the counter of ticks since boot */
_Watchdog_Ticks_since_boot += 1;
/* Update the timespec format uptime */
(void) _TOD_Add_timespec( &_TOD_Uptime, &tick );
/* we do not care how much the uptime changed */
/* Update the timespec format TOD */
seconds = _TOD_Add_timespec( &_TOD_Now, &tick );
while ( seconds ) {
_Watchdog_Tickle_seconds();
seconds--;
}
}
/**
* This routine deactivates updating of the current time of day.
*/
RTEMS_INLINE_ROUTINE void _TOD_Deactivate( void )
{
/* XXX do we need something now that we are using timespec for TOD */
}
/**
* This routine activates updating of the current time of day.
*/
RTEMS_INLINE_ROUTINE void _TOD_Activate(
Watchdog_Interval ticks
)
{
/* XXX do we need something now that we are using timespec for TOD */
}
/**
* This routine returns a timeval based upon the internal timespec format TOD.
*/
RTEMS_INLINE_ROUTINE void _TOD_Get_timeval(
struct timeval *time
)
{
ISR_Level level;
struct timespec now;
_ISR_Disable(level);
_TOD_Get( &now );
_ISR_Enable(level);
time->tv_sec = now.tv_sec;
time->tv_usec = now.tv_nsec / TOD_NANOSECONDS_PER_MICROSECOND;
}
/**@}*/
#endif
/* end of include file */
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