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/*
* Clock Manager
*
* COPYRIGHT (c) 1989-1999.
* 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.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/config.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/clock.h>
#include <rtems/score/isr.h>
#include <rtems/score/thread.h>
#include <rtems/score/tod.h>
#include <rtems/score/watchdog.h>
/*
* rtems_clock_set
*
* This directive sets the date and time for this node.
*
* Input parameters:
* tod - pointer to the time and date structure
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_clock_set(
const rtems_time_of_day *tod
)
{
if ( !tod )
return RTEMS_INVALID_ADDRESS;
if ( _TOD_Validate( tod ) ) {
Timestamp_Control tod_as_timestamp;
uint32_t seconds = _TOD_To_seconds( tod );
uint32_t nanoseconds = tod->ticks
* rtems_configuration_get_nanoseconds_per_tick();
_Timestamp_Set( &tod_as_timestamp, seconds, nanoseconds );
_Thread_Disable_dispatch();
_TOD_Set_with_timestamp( &tod_as_timestamp );
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
return RTEMS_INVALID_CLOCK;
}
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