Exemplo n.º 1
0
void  OS_TmrTask (void  *p_arg)
{
    OS_ERR               err;
    OS_TMR_CALLBACK_PTR  p_fnct;
    OS_TMR              *p_tmr;
    OS_TMR              *p_tmr_next;
    CPU_TS               ts;
    CPU_TS               ts_start;
    CPU_TS               ts_delta;



    (void)&p_arg;                                                /* Not using 'p_arg', prevent compiler warning       */
    while (DEF_ON) {
        (void)OSTaskSemPend((OS_TICK )0,                         /* Wait for signal indicating time to update tmrs    */
                            (OS_OPT  )OS_OPT_PEND_BLOCKING,
                            (CPU_TS *)&ts,
                            (OS_ERR *)&err);


        OS_TmrLock();
        ts_start = OS_TS_GET();
        OSTmrTickCtr++;                                          /* Increment the current time                        */
        p_tmr    = OSTmrListPtr;
        while (p_tmr != (OS_TMR *)0) {                           /* Update all the timers in the list                 */
            OSSchedLock(&err);
            (void)&err;
            p_tmr_next = p_tmr->NextPtr;
            p_tmr->Remain--;
            if (p_tmr->Remain == 0) {
                if (p_tmr->Opt == OS_OPT_TMR_PERIODIC) {
                    p_tmr->Remain = p_tmr->Period;               /* Reload the time remaining                         */
                } else {
                    OS_TmrUnlink(p_tmr);                         /* Remove from list                                  */
                    p_tmr->State = OS_TMR_STATE_COMPLETED;       /* Indicate that the timer has completed             */
                }
                p_fnct = p_tmr->CallbackPtr;                     /* Execute callback function if available            */
                if (p_fnct != (OS_TMR_CALLBACK_PTR)0) {
                    (*p_fnct)((void *)p_tmr,
                              p_tmr->CallbackPtrArg);
                }
            }
            p_tmr = p_tmr_next;
            OSSchedUnlock(&err);
            (void)&err;
        }

        ts_delta = OS_TS_GET() - ts_start;                      /* Measure execution time of timer task              */

        if (OSTmrTaskTimeMax < ts_delta) {
            OSTmrTaskTimeMax = ts_delta;
        }

        OS_TmrUnlock();
    }
}
Exemplo n.º 2
0
CPU_BOOLEAN  OSTmrStop (OS_TMR  *p_tmr,
                        OS_OPT   opt,
                        void    *p_callback_arg,
                        OS_ERR  *p_err)
{
    OS_TMR_CALLBACK_PTR  p_fnct;
    OS_ERR               err;



#ifdef OS_SAFETY_CRITICAL
    if (p_err == (OS_ERR *)0) {
        OS_SAFETY_CRITICAL_EXCEPTION();
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u
    if (OSIntNestingCtr > (OS_NESTING_CTR)0) {                        /* See if trying to call from an ISR            */
       *p_err = OS_ERR_TMR_ISR;
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_ARG_CHK_EN > 0u
    if (p_tmr == (OS_TMR *)0) {
       *p_err = OS_ERR_TMR_INVALID;
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_OBJ_TYPE_CHK_EN > 0u
    if (p_tmr->Type != OS_OBJ_TYPE_TMR) {                             /* Make sure timer was created                  */
       *p_err = OS_ERR_OBJ_TYPE;
        return (DEF_FALSE);
    }
#endif

    OSSchedLock(&err);
    switch (p_tmr->State) {
        case OS_TMR_STATE_RUNNING:
             OS_TmrUnlink(p_tmr);                                     /* Remove from current wheel spoke              */
            *p_err = OS_ERR_NONE;
             switch (opt) {
                 case OS_OPT_TMR_CALLBACK:
                      p_fnct = p_tmr->CallbackPtr;                         /* Execute callback function ...           */
                      if (p_fnct != (OS_TMR_CALLBACK_PTR)0) {              /* ... if available                        */
                        (*p_fnct)((void *)p_tmr, p_tmr->CallbackPtrArg);   /* Use callback arg when timer was created */
                      } else {
                         *p_err = OS_ERR_TMR_NO_CALLBACK;
                      }
                      break;

                 case OS_OPT_TMR_CALLBACK_ARG:
                      p_fnct = p_tmr->CallbackPtr;                    /* Execute callback function if available ...   */
                      if (p_fnct != (OS_TMR_CALLBACK_PTR)0) {
                        (*p_fnct)((void *)p_tmr, p_callback_arg);     /* .. using the 'callback_arg' provided in call */
                      } else {
                         *p_err = OS_ERR_TMR_NO_CALLBACK;
                      }
                      break;

                 case OS_OPT_TMR_NONE:
                      break;

                 default:
                     OSSchedUnlock(&err);
                    *p_err = OS_ERR_OPT_INVALID;
                     return (DEF_FALSE);
             }
             OSSchedUnlock(&err);
             return (DEF_TRUE);

        case OS_TMR_STATE_COMPLETED:                                  /* Timer has already completed the ONE-SHOT or  */
        case OS_TMR_STATE_STOPPED:                                    /* ... timer has not started yet.               */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_STOPPED;
             return (DEF_TRUE);

        case OS_TMR_STATE_UNUSED:                                     /* Timer was not created                        */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_INACTIVE;
             return (DEF_FALSE);

        default:
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_INVALID_STATE;
             return (DEF_FALSE);
    }
}
Exemplo n.º 3
0
CPU_BOOLEAN  OSTmrStart (OS_TMR  *p_tmr,
                         OS_ERR  *p_err)
{
    OS_ERR  err;



#ifdef OS_SAFETY_CRITICAL
    if (p_err == (OS_ERR *)0) {
        OS_SAFETY_CRITICAL_EXCEPTION();
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u
    if (OSIntNestingCtr > (OS_NESTING_CTR)0) {              /* See if trying to call from an ISR                      */
       *p_err = OS_ERR_TMR_ISR;
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_ARG_CHK_EN > 0u
    if (p_tmr == (OS_TMR *)0) {
       *p_err = OS_ERR_TMR_INVALID;
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_OBJ_TYPE_CHK_EN > 0u
    if (p_tmr->Type != OS_OBJ_TYPE_TMR) {                   /* Make sure timer was created                            */
       *p_err = OS_ERR_OBJ_TYPE;
        return (DEF_FALSE);
    }
#endif

    OSSchedLock(&err);
    switch (p_tmr->State) {
        case OS_TMR_STATE_RUNNING:                          /* Restart the timer                                      */
             OS_TmrUnlink(p_tmr);                           /* ... Stop the timer                                     */
             OS_TmrLink(p_tmr, OS_OPT_LINK_DLY);            /* ... Link timer to timer wheel (see Note #1).           */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_NONE;
             return (DEF_TRUE);

        case OS_TMR_STATE_STOPPED:                          /* Start the timer                                        */
        case OS_TMR_STATE_COMPLETED:
             OS_TmrLink(p_tmr, OS_OPT_LINK_DLY);            /* ... Link timer to timer wheel (see Note #1).           */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_NONE;
             return (DEF_TRUE);

        case OS_TMR_STATE_UNUSED:                           /* Timer not created                                      */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_INACTIVE;
             return (DEF_FALSE);

        default:
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_INVALID_STATE;
             return (DEF_FALSE);
    }
}
Exemplo n.º 4
0
CPU_BOOLEAN  OSTmrDel (OS_TMR  *p_tmr,
                       OS_ERR  *p_err)
{
    OS_ERR  err;



#ifdef OS_SAFETY_CRITICAL
    if (p_err == (OS_ERR *)0) {
        OS_SAFETY_CRITICAL_EXCEPTION();
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_CALLED_FROM_ISR_CHK_EN > 0u
    if (OSIntNestingCtr > (OS_NESTING_CTR)0) {              /* See if trying to call from an ISR                      */
       *p_err  = OS_ERR_TMR_ISR;
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_ARG_CHK_EN > 0u
    if (p_tmr == (OS_TMR *)0) {
       *p_err = OS_ERR_TMR_INVALID;
        return (DEF_FALSE);
    }
#endif

#if OS_CFG_OBJ_TYPE_CHK_EN > 0u
    if (p_tmr->Type != OS_OBJ_TYPE_TMR) {                   /* Make sure timer was created                            */
       *p_err = OS_ERR_OBJ_TYPE;
        return (DEF_FALSE);
    }
#endif

    OSSchedLock(&err);
#if OS_CFG_DBG_EN > 0u
    OS_TmrDbgListRemove(p_tmr);
#endif
    OSTmrQty--;                                             /* One less timer                                         */

    switch (p_tmr->State) {
        case OS_TMR_STATE_RUNNING:
             OS_TmrUnlink(p_tmr);                           /* Remove from current wheel spoke                        */
             OS_TmrClr(p_tmr);
             OSSchedUnlock(&err);
            *p_err = OS_ERR_NONE;
             return (DEF_TRUE);

        case OS_TMR_STATE_STOPPED:                          /* Timer has not started or ...                           */
        case OS_TMR_STATE_COMPLETED:                        /* ... timer has completed the ONE-SHOT time              */
             OS_TmrClr(p_tmr);                              /* Clear timer fields                                     */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_NONE;
             return (DEF_TRUE);

        case OS_TMR_STATE_UNUSED:                           /* Already deleted                                        */
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_INACTIVE;
             return (DEF_FALSE);

        default:
             OSSchedUnlock(&err);
            *p_err = OS_ERR_TMR_INVALID_STATE;
             return (DEF_FALSE);
    }
}
Exemplo n.º 5
0
void  OS_TmrTask (void  *p_arg)
{
    CPU_BOOLEAN          done;
    OS_ERR               err;
    OS_TMR_CALLBACK_PTR  p_fnct;
    OS_TMR_SPOKE        *p_spoke;
    OS_TMR              *p_tmr;
    OS_TMR              *p_tmr_next;
    OS_TMR_SPOKE_IX      spoke;
    CPU_TS               ts;
    CPU_TS               ts_start;
    CPU_TS               ts_end;



    p_arg = p_arg;                                               /* Not using 'p_arg', prevent compiler warning       */
    while (DEF_ON) {
        (void)OSTaskSemPend((OS_TICK )0,                         /* Wait for signal indicating time to update tmrs    */
                            (OS_OPT  )OS_OPT_PEND_BLOCKING,
                            (CPU_TS *)&ts,
                            (OS_ERR *)&err);

        OSSchedLock(&err);
        ts_start = OS_TS_GET();
        OSTmrTickCtr++;                                          /* Increment the current time                        */
        spoke    = (OS_TMR_SPOKE_IX)(OSTmrTickCtr % OSCfg_TmrWheelSize);
        p_spoke  = &OSCfg_TmrWheel[spoke];
        p_tmr    = p_spoke->FirstPtr;
        done     = DEF_FALSE;
        while (done == DEF_FALSE) {
            if (p_tmr != (OS_TMR *)0) {
                p_tmr_next = (OS_TMR *)p_tmr->NextPtr;           /* Point to next tmr to update because current ...   */
                                                                 /* ... timer could get unlinked from the wheel.      */
                if (OSTmrTickCtr == p_tmr->Match) {              /* Process each timer that expires                   */
                    OS_TmrUnlink(p_tmr);                         /* Remove from current wheel spoke                   */
                    if (p_tmr->Opt == OS_OPT_TMR_PERIODIC) {
                        OS_TmrLink(p_tmr,
                                   OS_OPT_LINK_PERIODIC);        /* Recalculate new position of timer in wheel        */
                    } else {
                        p_tmr->State = OS_TMR_STATE_COMPLETED;   /* Indicate that the timer has completed             */
                    }
                    p_fnct = p_tmr->CallbackPtr;                 /* Execute callback function if available            */
                    if (p_fnct != (OS_TMR_CALLBACK_PTR)0) {
                        (*p_fnct)((void *)p_tmr,
                                  p_tmr->CallbackPtrArg);
                    }
                    p_tmr = p_tmr_next;                          /* See if next timer matches                         */
                } else {
                    done  = DEF_TRUE;
                }
            } else {
                done = DEF_TRUE;
            }
        }
        ts_end = OS_TS_GET() - ts_start;                         /* Measure execution time of timer task              */
        OSSchedUnlock(&err);
        if (OSTmrTaskTimeMax < ts_end) {
            OSTmrTaskTimeMax = ts_end;
        }
    }
}