sim_cycle_timers.h

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/*
 * sim_cycle_timers.h
 *
 * Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
 *
 * This file is part of simavr.
 *
 * simavr is free software: you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * simavr is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 * Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with simavr.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

#ifndef __SIM_CYCLE_TIMERS_H___
#define __SIM_CYCLE_TIMERS_H___

#include "sim_avr_types.h"

#ifdef __cplusplus
extern "C"
{
#endif

#define MAX_CYCLE_TIMERS 64

  typedef avr_cycle_count_t (*avr_cycle_timer_t) (struct avr_t * avr, avr_cycle_count_t when, void *param);

  typedef struct avr_cycle_timer_slot_t
  {
    struct avr_cycle_timer_slot_t *next;
    avr_cycle_count_t when;
    avr_cycle_timer_t timer;
    void *param;
  } avr_cycle_timer_slot_t, *avr_cycle_timer_slot_p;

  typedef struct avr_cycle_timer_pool_t
  {
    avr_cycle_timer_slot_t timer_slots[MAX_CYCLE_TIMERS];
    avr_cycle_timer_slot_p timer_free;
    avr_cycle_timer_slot_p timer;
  } avr_cycle_timer_pool_t, *avr_cycle_timer_pool_p;

  void avr_cycle_timer_register (struct avr_t *avr, avr_cycle_count_t when, avr_cycle_timer_t timer, void *param);
  void avr_cycle_timer_register_usec (struct avr_t *avr, uint32_t when, avr_cycle_timer_t timer, void *param);
  void avr_cycle_timer_cancel (struct avr_t *avr, avr_cycle_timer_t timer, void *param);
  avr_cycle_count_t avr_cycle_timer_status (struct avr_t *avr, avr_cycle_timer_t timer, void *param);

  //
  // Private, called from the core
  //
  avr_cycle_count_t avr_cycle_timer_process (struct avr_t *avr);
  void avr_cycle_timer_reset (struct avr_t *avr);

#ifdef __cplusplus
};
#endif

#endif /* __SIM_CYCLE_TIMERS_H___ */