watchdog.h

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/*
 *  COPYRIGHT (c) 1989-2009.
 *  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.
 */

#ifndef _RTEMS_SCORE_WATCHDOG_H
#define _RTEMS_SCORE_WATCHDOG_H

#include <rtems/score/object.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef uint32_t   Watchdog_Interval;

typedef void Watchdog_Service_routine;

typedef Watchdog_Service_routine ( *Watchdog_Service_routine_entry )(
                 Objects_Id,
                 void *
             );

#define WATCHDOG_NO_TIMEOUT  0

typedef enum {
  WATCHDOG_INACTIVE,
  WATCHDOG_BEING_INSERTED,
  WATCHDOG_ACTIVE
} Watchdog_States;

typedef struct {
  Chain_Node                      Node;
  Watchdog_States                 state;
  Watchdog_Interval               initial;
  Watchdog_Interval               delta_interval;
  Watchdog_Interval               start_time;
  Watchdog_Interval               stop_time;
  Watchdog_Service_routine_entry  routine;
  Objects_Id                      id;
  void                           *user_data;
}   Watchdog_Control;

extern volatile Watchdog_Interval _Watchdog_Ticks_since_boot;

#ifdef __cplusplus
}
#endif

#endif
/* end of include file */