source: mypx/extension/ovrhdr/kernel/overrun.h

/*
 *  TOPPERS/ASP Kernel
 *      Toyohashi Open Platform for Embedded Real-Time Systems/
 *      Advanced Standard Profile Kernel
 * 
 *  Copyright (C) 2005-2010 by Embedded and Real-Time Systems Laboratory
 *              Graduate School of Information Science, Nagoya Univ., JAPAN
 * 
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 *  @(#) $Id$
 */

/*
 *              ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éµ¡Çœ
 */

#ifndef TOPPERS_OVERRUN_H
#define TOPPERS_OVERRUN_H

#ifdef TOPPERS_SUPPORT_OVRHDR
#include "target_timer.h"

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éœéŽü²œ¥Ö¥í¥Ã¥¯
 */
typedef struct overrun_handler_initialization_block {
        ATR                     ovratr;                 /* ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥é°À­ */
        OVRHDR          ovrhdr;                 /* ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥é€Îµ¯Æ°ÈÖÃÏ */
} OVRINIB;

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éœéŽü²œ¥Ö¥í¥Ã¥¯€Î¥š¥ê¥¢¡Êkernel_cfg.c¡Ë
 */
extern const OVRINIB    ovrinib;

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥¿¥€¥Þ€¬Æ°ºîÃ怫€òŒš€¹¥Õ¥é¥°
 */
extern bool_t   ovrtimer_flag;

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éµ¡Çœ€ÎœéŽü²œ
 */
extern void     initialize_overrun(void);

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éÍÑ¥¿¥€¥Þ€ÎÆ°ºî³«»Ï
 */
extern void     ovrtimer_start(void);

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éÍÑ¥¿¥€¥Þ€ÎÄä»ß
 */
#ifndef OMIT_OVRTIMER_STOP

extern void     ovrtimer_stop(void);

#else /* OMIT_OVRTIMER_STOP */

Inline void
ovrtimer_stop(void)
{
        if (p_runtsk->leftotm > 0U) {
                p_runtsk->leftotm = target_ovrtimer_stop();
                ovrtimer_flag = false;
        }
}

#endif /* OMIT_OVRTIMER_STOP */

/*
 *  ¥ª¡Œ¥Ð¥é¥ó¥Ï¥ó¥É¥éµ¯Æ°¥ë¡Œ¥Á¥ó
 */
extern void     call_ovrhdr(void);

#endif /* TOPPERS_SUPPORT_OVRHDR */
#endif /* TOPPERS_OVERRUN_H */