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/*
* Time of Day (TOD) Handler -- Tickle Ticks
*/
/* 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.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/score/thread.h>
#include <rtems/score/timestamp.h>
#include <rtems/score/tod.h>
#include <rtems/score/watchdog.h>
#include <rtems/config.h>
/*
* _TOD_Tickle_ticks
*
* This routine processes a clock tick.
*
* Input parameters: NONE
*
* Output parameters: NONE
*/
void _TOD_Tickle_ticks( void )
{
Timestamp_Control tick;
uint32_t nanoseconds_per_tick;
nanoseconds_per_tick = rtems_configuration_get_nanoseconds_per_tick();
/* Convert the tick quantum to a timestamp */
_Timestamp_Set( &tick, 0, nanoseconds_per_tick );
/* Update the counter of ticks since boot */
_Watchdog_Ticks_since_boot += 1;
/* Update the uptime */
_Timestamp_Add_to( &_TOD.uptime, &tick );
/* we do not care how much the uptime changed */
/* Update the current TOD */
_Timestamp_Add_to( &_TOD.now, &tick );
_TOD.seconds_trigger += nanoseconds_per_tick;
if ( _TOD.seconds_trigger >= 1000000000UL ) {
_TOD.seconds_trigger -= 1000000000UL;
_Watchdog_Tickle_seconds();
}
}
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