📄 time.c
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/**
*******************************************************************************
* @file time.c
* @version V1.13
* @date 2010.04.26
* @brief time management implementation code of CooCox CoOS kernel.
*******************************************************************************
* @copy
*
* INTERNAL FILE,DON'T PUBLIC.
*
* <h2><center>© COPYRIGHT 2009 CooCox </center></h2>
*******************************************************************************
*/
/*---------------------------- Include ---------------------------------------*/
#include <coocox.h>
#if CFG_TASK_WAITTING_EN > 0
/*---------------------------- Variable Define -------------------------------*/
P_OSTCB DlyList = NULL; /*!< Header pointer to the DELAY list.*/
/**
*******************************************************************************
* @brief Insert into DELAY list
*
* @param[in] ptcb Task that want to insert into DELAY list.
* @param[in] ticks Delay system ticks.
* @param[out] None
* @retval None.
*
* @par Description
* @details This function is called to insert task into DELAY list.
*******************************************************************************
*/
void InsertDelayList(P_OSTCB ptcb,U32 ticks)
{
S32 deltaTicks;
P_OSTCB dlyNext;
if(ticks == 0) /* Is delay tick == 0? */
return; /* Yes,do nothing,return */
if(DlyList == NULL) /* Is no item in DELAY list? */
{
ptcb->delayTick = ticks; /* Yes,set this as first item */
DlyList = ptcb;
}
else
{
/* No,find correct place ,and insert the task */
dlyNext = DlyList;
deltaTicks = ticks; /* Get task delay ticks */
/* Find correct place */
while(dlyNext != NULL)
{
/* Get delta ticks with previous item */
deltaTicks -= dlyNext->delayTick;
if(deltaTicks < 0) /* Is delta ticks<0? */
{
/* Yes,get correct place */
if(dlyNext->TCBprev != NULL) /* Is head item of DELAY list? */
{
dlyNext->TCBprev->TCBnext = ptcb; /* No,insert into */
ptcb->TCBprev = dlyNext->TCBprev;
ptcb->TCBnext = dlyNext;
dlyNext->TCBprev = ptcb;
}
else /* Yes,set task as first item */
{
ptcb->TCBnext = DlyList;
DlyList->TCBprev = ptcb;
DlyList = ptcb;
}
ptcb->delayTick = ptcb->TCBnext->delayTick+deltaTicks;
ptcb->TCBnext->delayTick -= ptcb->delayTick;
break;
}
/* Is last item in DELAY list? */
else if((deltaTicks >= 0) && (dlyNext->TCBnext == NULL) )
{
ptcb->TCBprev = dlyNext; /* Yes,insert into */
dlyNext->TCBnext = ptcb;
ptcb->delayTick = deltaTicks;
break;
}
dlyNext = dlyNext->TCBnext; /* Get the next item in DELAY list */
}
}
ptcb->state = TASK_WAITING; /* Set task status as TASK_WAITING */
TaskSchedReq = TRUE;
}
/**
*******************************************************************************
* @brief Remove from the DELAY list
* @param[in] ptcb Task that want to remove from the DELAY list.
* @param[out] None
* @retval None
*
* @par Description
* @details This function is called to remove task from the DELAY list.
*******************************************************************************
*/
void RemoveDelayList(P_OSTCB ptcb)
{
/* Is there only one item in the DELAY list? */
if((ptcb->TCBprev == NULL) && ( ptcb->TCBnext == NULL))
{
DlyList = NULL; /* Yes,set DELAY list as NULL */
}
else if(ptcb->TCBprev == NULL) /* Is the first item in DELAY list? */
{
/* Yes,remove task from the DELAY list,and reset the list */
DlyList = ptcb->TCBnext;
ptcb->TCBnext->delayTick += ptcb->delayTick;
ptcb->TCBnext->TCBprev = NULL;
ptcb->TCBnext = NULL;
}
else if(ptcb->TCBnext == NULL) /* Is the last item in DELAY list? */
{
ptcb->TCBprev->TCBnext = NULL; /* Yes,remove task form DELAY list */
ptcb->TCBprev = NULL;
}
else /* No, remove task from DELAY list */
{
ptcb->TCBprev->TCBnext = ptcb->TCBnext;
ptcb->TCBnext->TCBprev = ptcb->TCBprev;
ptcb->TCBnext->delayTick += ptcb->delayTick;
ptcb->TCBnext = NULL;
ptcb->TCBprev = NULL;
}
ptcb->delayTick = INVALID_VALUE; /* Set task delay tick value as invalid */
}
/**
*******************************************************************************
* @brief Get current ticks
* @param[in] None
* @param[out] None
* @retval Return current system tick counter.
*
* @par Description
* @details This function is called to obtain current system tick counter.
*******************************************************************************
*/
U64 CoGetOSTime(void)
{
return OSTickCnt; /* Get system time(tick) */
}
/**
*******************************************************************************
* @brief Delay current task for specify ticks number
* @param[in] ticks Specify system tick number which will delay.
* @param[out] None
* @retval E_CALL Error call in ISR.
* @retval E_OK The current task was insert to DELAY list successful,it
* will delay specify time.
* @par Description
* @details This function delay specify ticks for current task.
*
* @note This function be called in ISR,do nothing and return immediately.
*******************************************************************************
*/
StatusType CoTickDelay(U32 ticks)
{
if(OSIntNesting >0) /* Is call in ISR? */
{
return E_CALL; /* Yes,error return */
}
if(ticks == INVALID_VALUE) /* Is tick==INVALID_VALUE? */
{
return E_INVALID_PARAMETER; /* Yes,error return */
}
if(ticks == 0) /* Is tick==0? */
{
return E_OK; /* Yes,do nothing ,return OK */
}
if(OSSchedLock != 0) /* Is OS lock? */
{
return E_OS_IN_LOCK; /* Yes,error return */
}
OsSchedLock(); /* Lock schedule */
InsertDelayList(TCBRunning,ticks); /* Insert task in DELAY list */
OsSchedUnlock(); /* Unlock schedule,and call task schedule */
return E_OK; /* Return OK */
}
/**
*******************************************************************************
* @brief Reset task delay ticks
* @param[in] ptcb Task that want to insert into DELAY list.
* @param[in] ticks Specify system tick number which will delay .
* @param[out] None
* @retval E_CALL Error call in ISR.
* @retval E_INVALID_ID Invalid task id.
* @retval E_NOT_IN_DELAY_LIST Task not in delay list.
* @retval E_OK The current task was inserted to DELAY list
* successful,it will delay for specify time.
* @par Description
* @details This function delay specify ticks for current task.
*******************************************************************************
*/
StatusType CoResetTaskDelayTick(OS_TID taskID,U32 ticks)
{
P_OSTCB ptcb;
#if CFG_PAR_CHECKOUT_EN >0 /* Check validity of parameter */
if(taskID >= CFG_MAX_USER_TASKS + SYS_TASK_NUM)
{
return E_INVALID_ID;
}
#endif
ptcb = &TCBTbl[taskID];
#if CFG_PAR_CHECKOUT_EN >0
if(ptcb->stkPtr == NULL)
{
return E_INVALID_ID;
}
#endif
if(ptcb->delayTick == INVALID_VALUE) /* Is tick==INVALID_VALUE? */
{
return E_NOT_IN_DELAY_LIST; /* Yes,error return */
}
OsSchedLock(); /* Lock schedule */
RemoveDelayList(ptcb); /* Remove task from the DELAY list */
if(ticks == 0) /* Is delay tick==0? */
{
InsertToTCBRdyList(ptcb); /* Insert task into the DELAY list */
}
else
{
InsertDelayList(ptcb,ticks); /* No,insert task into DELAY list */
}
OsSchedUnlock(); /* Unlock schedule,and call task schedule */
return E_OK; /* Return OK */
}
/**
*******************************************************************************
* @brief Delay current task for detail time
* @param[in] hour Specify the number of hours.
* @param[in] minute Specify the number of minutes.
* @param[in] sec Specify the number of seconds.
* @param[in] millsec Specify the number of millseconds.
* @param[out] None
* @retval E_CALL Error call in ISR.
* @retval E_INVALID_PARAMETER Parameter passed was invalid,delay fail.
* @retval E_OK The current task was inserted to DELAY list
* successful,it will delay for specify time.
* @par Description
* @details This function delay specify time for current task.
*
* @note If this function called in ISR,do nothing and return immediately.
*******************************************************************************
*/
#if CFG_TIME_DELAY_EN >0
StatusType CoTimeDelay(U8 hour,U8 minute,U8 sec,U16 millsec)
{
U32 ticks;
#if CFG_PAR_CHECKOUT_EN >0 /* Check validity of parameter */
if(OSIntNesting > 0)
{
return E_CALL;
}
if((minute > 59)||(sec > 59)||(millsec > 999))
return E_INVALID_PARAMETER;
#endif
if(OSSchedLock != 0) /* Is OS lock? */
{
return E_OS_IN_LOCK; /* Yes,error return */
}
/* Get tick counter from time */
ticks = ((hour*3600) + (minute*60) + (sec)) * (CFG_SYSTICK_FREQ)\
+ (millsec*CFG_SYSTICK_FREQ + 500)/1000;
CoTickDelay(ticks); /* Call tick delay */
return E_OK; /* Return OK */
}
#endif
/**
*******************************************************************************
* @brief Dispose time delay
* @param[in] None
* @param[out] None
* @retval None
*
* @par Description
* @details This function is called to dispose time delay of all task.
*******************************************************************************
*/
void TimeDispose(void)
{
P_OSTCB dlyList;
dlyList = DlyList; /* Get first item of DELAY list */
while((dlyList != NULL) && (dlyList->delayTick == 0) )
{
#if CFG_EVENT_EN > 0
if(dlyList->eventID != INVALID_ID) /* Is task in event waiting list? */
{
RemoveEventWaittingList(dlyList); /* Yes,remove task from list */
}
#endif
#if CFG_FLAG_EN > 0
if(dlyList->pnode != NULL) /* Is task in flag waiting list? */
{
RemoveLinkNode(dlyList->pnode); /* Yes,remove task from list */
}
#endif
dlyList->delayTick = INVALID_VALUE; /* Set delay tick value as invalid*/
DlyList = dlyList->TCBnext; /* Get next item as the head of DELAY list*/
dlyList->TCBnext = NULL;
InsertToTCBRdyList(dlyList); /* Insert task into READY list */
dlyList = DlyList; /* Get the first item of DELAY list */
if(dlyList != NULL) /* Is DELAY list as NULL? */
{
dlyList->TCBprev = NULL; /* No,initialize the first item */
}
}
}
/**
*******************************************************************************
* @brief Dispose time delay in ISR
* @param[in] None
* @param[out] None
* @retval None
*
* @par Description
* @details This function is called in systick interrupt to dispose time delay
* of all task.
*******************************************************************************
*/
void isr_TimeDispose(void)
{
if(OSSchedLock > 1) /* Is schedule lock? */
{
IsrReq = TRUE;
TimeReq = TRUE; /* Yes,set time request true */
}
else
{
TimeDispose(); /* No,call handler */
}
}
#endif
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