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/**
* @file
*
* @brief Set Time of Day Given a Timestamp
*
* @ingroup RTEMSScoreTOD
*/
/* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/todimpl.h>
#include <rtems/score/assert.h>
#include <rtems/score/watchdogimpl.h>
static Status_Control _TOD_Check_time_of_day_and_run_hooks(
const struct timespec *tod
)
{
if ( !_Watchdog_Is_valid_timespec( tod ) ) {
return STATUS_INVALID_NUMBER;
}
if ( tod->tv_sec < TOD_SECONDS_1970_THROUGH_1988 ) {
return STATUS_INVALID_NUMBER;
}
if ( _Watchdog_Is_far_future_timespec( tod ) ) {
return STATUS_INVALID_NUMBER;
}
return _TOD_Hook_Run( TOD_ACTION_SET_CLOCK, tod );
}
Status_Control _TOD_Set(
const struct timespec *tod,
ISR_lock_Context *lock_context
)
{
struct bintime tod_as_bintime;
uint64_t tod_as_ticks;
uint32_t cpu_max;
uint32_t cpu_index;
Status_Control status;
_Assert( _TOD_Is_owner() );
status = _TOD_Check_time_of_day_and_run_hooks( tod );
if ( status != STATUS_SUCCESSFUL ) {
_TOD_Release( lock_context );
return status;
}
timespec2bintime( tod, &tod_as_bintime );
_Timecounter_Set_clock( &tod_as_bintime, lock_context );
tod_as_ticks = _Watchdog_Ticks_from_timespec( tod );
cpu_max = _SMP_Get_processor_maximum();
for ( cpu_index = 0 ; cpu_index < cpu_max ; ++cpu_index ) {
Per_CPU_Control *cpu;
Watchdog_Header *header;
ISR_lock_Context lock_context;
Watchdog_Control *first;
cpu = _Per_CPU_Get_by_index( cpu_index );
header = &cpu->Watchdog.Header[ PER_CPU_WATCHDOG_REALTIME ];
_ISR_lock_ISR_disable_and_acquire( &cpu->Watchdog.Lock, &lock_context );
first = _Watchdog_Header_first( header );
if ( first != NULL ) {
_Watchdog_Tickle(
header,
first,
tod_as_ticks,
&cpu->Watchdog.Lock,
&lock_context
);
}
_ISR_lock_Release_and_ISR_enable( &cpu->Watchdog.Lock, &lock_context );
}
_TOD.is_set = true;
return STATUS_SUCCESSFUL;
}
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