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/*
* Copyright (c) 2015, 2016 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <rtems@embedded-brains.de>
*
* 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/score/watchdogimpl.h>
#include <rtems/score/schedulerimpl.h>
#include <rtems/score/threaddispatch.h>
#include <rtems/score/timecounter.h>
void _Watchdog_Do_tickle(
Watchdog_Header *header,
uint64_t now,
#ifdef RTEMS_SMP
ISR_lock_Control *lock,
#endif
ISR_lock_Context *lock_context
)
{
while ( true ) {
Watchdog_Control *the_watchdog;
the_watchdog = (Watchdog_Control *) header->first;
if ( the_watchdog == NULL ) {
break;
}
if ( the_watchdog->expire <= now ) {
Watchdog_Service_routine_entry routine;
_Watchdog_Next_first( header, the_watchdog );
_RBTree_Extract( &header->Watchdogs, &the_watchdog->Node.RBTree );
_Watchdog_Set_state( the_watchdog, WATCHDOG_INACTIVE );
routine = the_watchdog->routine;
_ISR_lock_Release_and_ISR_enable( lock, lock_context );
( *routine )( the_watchdog );
_ISR_lock_ISR_disable_and_acquire( lock, lock_context );
} else {
break;
}
}
_ISR_lock_Release_and_ISR_enable( lock, lock_context );
}
void _Watchdog_Tick( Per_CPU_Control *cpu )
{
ISR_lock_Context lock_context;
uint64_t ticks;
struct timespec now;
if ( _Per_CPU_Is_boot_processor( cpu ) ) {
++_Watchdog_Ticks_since_boot;
}
_ISR_lock_ISR_disable_and_acquire( &cpu->Watchdog.Lock, &lock_context );
ticks = cpu->Watchdog.ticks;
_Assert( ticks < UINT64_MAX );
++ticks;
cpu->Watchdog.ticks = ticks;
_Watchdog_Tickle(
&cpu->Watchdog.Header[ PER_CPU_WATCHDOG_RELATIVE ],
ticks,
&cpu->Watchdog.Lock,
&lock_context
);
_Timecounter_Getnanotime( &now );
_Watchdog_Per_CPU_tickle_absolute(
cpu,
_Watchdog_Ticks_from_timespec( &now )
);
_Scheduler_Tick( cpu );
}
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