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/**
* @file
*
* @brief Set Time of Day Given a Timestamp
*
* @ingroup ScoreTOD
*/
/* 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/score/todimpl.h>
#include <rtems/score/threaddispatch.h>
#include <rtems/score/watchdogimpl.h>
void _TOD_Set_with_timestamp(
const Timestamp_Control *tod_as_timestamp
)
{
TOD_Control *tod = &_TOD;
uint32_t nanoseconds = _Timestamp_Get_nanoseconds( tod_as_timestamp );
Watchdog_Interval seconds_next = _Timestamp_Get_seconds( tod_as_timestamp );
Watchdog_Interval seconds_now;
ISR_lock_Context lock_context;
_Thread_Disable_dispatch();
seconds_now = _TOD_Seconds_since_epoch();
if ( seconds_next < seconds_now )
_Watchdog_Adjust_seconds( WATCHDOG_BACKWARD, seconds_now - seconds_next );
else
_Watchdog_Adjust_seconds( WATCHDOG_FORWARD, seconds_next - seconds_now );
_TOD_Acquire( tod, &lock_context );
tod->now = *tod_as_timestamp;
_TOD_Release( tod, &lock_context );
tod->seconds_trigger = nanoseconds;
tod->is_set = true;
_Thread_Enable_dispatch();
}
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