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/**
* @file
*
* @brief RTEMS Timer Reset
* @ingroup ClassicTimer Timers
*/
/*
* 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.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/score/thread.h>
#include <rtems/rtems/timerimpl.h>
#include <rtems/score/watchdogimpl.h>
/*
* rtems_timer_reset
*
* This directive allows a thread to reset a timer.
*
* Input parameters:
* id - timer id
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_timer_reset(
rtems_id id
)
{
Timer_Control *the_timer;
Objects_Locations location;
ISR_lock_Context lock_context;
Per_CPU_Control *cpu;
rtems_status_code status;
the_timer = _Timer_Get( id, &location, &lock_context );
switch ( location ) {
case OBJECTS_LOCAL:
cpu = _Timer_Acquire_critical( the_timer, &lock_context );
if ( _Timer_Is_interval_class( the_timer->the_class ) ) {
_Timer_Cancel( cpu, the_timer );
_Watchdog_Insert(
&cpu->Watchdog.Header[ PER_CPU_WATCHDOG_RELATIVE ],
&the_timer->Ticker,
cpu->Watchdog.ticks + the_timer->initial
);
status = RTEMS_SUCCESSFUL;
} else {
status = RTEMS_NOT_DEFINED;
}
_Timer_Release( cpu, &lock_context );
return status;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE: /* should never return this */
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
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