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transplant uc/os2 on coldfire5307 编译通过

Os_task.c (source):#if OS_TASK_CREATE_EXT_EN > 0
Os_task.c (source):INT8U  OSTaskCreateExt (void   (*task)(void *pd),
Os_task.c (source):    if (OSTCBPrioTbl[prio] == (OS_TCB *)0) { /* Make sure task doesn't already exist at this priority  */
Os_task.c (source):                                             /* ... the same thing until task is created.              */
Os_task.c (source):        if (((opt & OS_TASK_OPT_STK_CHK) != 0x0000) ||   /* See if stack checking has been enabled     */
Os_task.c (source):            ((opt & OS_TASK_OPT_STK_CLR) != 0x0000)) {   /* See if stack needs to be cleared           */
Os_task.c (source):        psp = (OS_STK *)OSTaskStkInit(task, pdata, ptos, opt); /* Initialize the task's stack          */
Os_task.c (source):            OSTaskCtr++;                                       /* Increment the #tasks counter         */
Os_task.c (source):            if (OSRunning == TRUE) {                           /* Find HPT if multitasking has started */
Os_task.c (source):*                                            DELETE A TASK
Os_task.c (source):* Description: This function allows you to delete a task.  The calling task can delete itself by
Os_task.c (source):*              its own priority number.  The deleted task is returned to the dormant state and can be
Os_task.c (source):*              re-activated by creating the deleted task again.
Os_task.c (source):* Arguments  : prio    is the priority of the task to delete.  Note that you can explicitely delete
Os_task.c (source):*                      the current task without knowing its priority level by setting 'prio' to
Os_task.c (source):*              OS_TASK_DEL_IDLE    if you attempted to delete uC/OS-II's idle task
Os_task.c (source):*              OS_TASK_DEL_ERR     if the task you want to delete does not exist
Os_task.c (source):*              OS_TASK_DEL_ISR     if you tried to delete a task from an ISR
Os_task.c (source):* Notes      : 1) To reduce interrupt latency, OSTaskDel() 'disables' the task:
Os_task.c (source):*                    c) by preventing OSTimeTick() from making the task ready to run.
Os_task.c (source):*                 The task can then be 'unlinked' from the miscellaneous structures in uC/OS-II.
Os_task.c (source):*              3) An ISR cannot delete a task.
Os_task.c (source):*                 task is being deleted, the current task would not be able to be rescheduled because it
Os_task.c (source):*                 is removed from the ready list.  Incrementing the nesting counter prevents another task
Os_task.c (source):*                 from being schedule.  This means that an ISR would return to the current task which is
Os_task.c (source):#if OS_TASK_DEL_EN > 0
Os_task.c (source):INT8U  OSTaskDel (INT8U prio)
Os_task.c (source):        return (OS_TASK_DEL_ISR);
Os_task.c (source):    if (prio == OS_IDLE_PRIO) {                                 /* Not allowed to delete idle task     */
Os_task.c (source):        return (OS_TASK_DEL_IDLE);
Os_task.c (source):    if (prio >= OS_LOWEST_PRIO && prio != OS_PRIO_SELF) {       /* Task priority valid ?               */
Os_task.c (source):    if (ptcb != (OS_TCB *)0) {                                       /* Task to delete must exist      */
Os_task.c (source):        if ((OSRdyTbl[ptcb->OSTCBY] &= ~ptcb->OSTCBBitX) == 0x00) {  /* Make task not ready            */
Os_task.c (source):        if (pevent != (OS_EVENT *)0) {                          /* If task is waiting on event         */
Os_task.c (source):            if ((pevent->OSEventTbl[ptcb->OSTCBY] &= ~ptcb->OSTCBBitX) == 0) { /* ... remove task from */
Os_task.c (source):        if (pnode != (OS_FLAG_NODE *)0) {                       /* If task is waiting on event flag    */
Os_task.c (source):        ptcb->OSTCBStat = OS_STAT_RDY;                          /* Prevent task from being resumed     */
Os_task.c (source):        OSTaskDelHook(ptcb);                                    /* Call user defined hook              */
Os_task.c (source):        OSTaskCtr--;                                            /* One less task being managed         */
Os_task.c (source):        OS_Sched();                                             /* Find new highest priority task      */
Os_task.c (source):    return (OS_TASK_DEL_ERR);
Os_task.c (source):*                                    REQUEST THAT A TASK DELETE ITSELF
Os_task.c (source):*                   a) notify a task to delete itself.
Os_task.c (source):*                   b) to see if a task requested that the current task delete itself.
Os_task.c (source):*              This function is a little tricky to understand.  Basically, you have a task that needs
Os_task.c (source):*              to be deleted however, this task has resources that it has allocated (memory buffers,
Os_task.c (source):*              semaphores, mailboxes, queues etc.).  The task cannot be deleted otherwise these
Os_task.c (source):*              resources would not be freed.  The requesting task calls OSTaskDelReq() to indicate that
Os_task.c (source):*              the task needs to be deleted.  Deleting of the task is however, deferred to the task to
Os_task.c (source):*              be deleted.  For example, suppose that task #10 needs to be deleted.  The requesting task
Os_task.c (source):*              example, task #5, would call OSTaskDelReq(10).  When task #10 gets to execute, it calls
Os_task.c (source):*              value is OS_TASK_DEL_REQ, another task requested a task delete.  Task #10 would look like
Os_task.c (source):*                   void Task(void *data)
Os_task.c (source):*                           if (OSTaskDelReq(OS_PRIO_SELF) == OS_TASK_DEL_REQ) {
Os_task.c (source):*                               OSTaskDel(OS_PRIO_SELF);
Os_task.c (source):* Arguments  : prio    is the priority of the task to request the delete from
Os_task.c (source):* Returns    : OS_NO_ERR          if the task exist and the request has been registered
Os_task.c (source):*              OS_TASK_NOT_EXIST  if the task has been deleted.  This allows the caller to know whether
Os_task.c (source):*              OS_TASK_DEL_IDLE   if you requested to delete uC/OS-II's idle task
Os_task.c (source):*              OS_TASK_DEL_REQ    if a task (possibly another task) requested that the running task be
Os_task.c (source):#if OS_TASK_DEL_EN > 0
Os_task.c (source):INT8U  OSTaskDelReq (INT8U prio)
Os_task.c (source):    if (prio == OS_IDLE_PRIO) {                                 /* Not allowed to delete idle task     */
Os_task.c (source):        return (OS_TASK_DEL_IDLE);
Os_task.c (source):    if (prio >= OS_LOWEST_PRIO && prio != OS_PRIO_SELF) {       /* Task priority valid ?               */
Os_task.c (source):    if (prio == OS_PRIO_SELF) {                                 /* See if a task is requesting to ...  */
Os_task.c (source):        OS_ENTER_CRITICAL();                                    /* ... this task to delete itself      */
Os_task.c (source):    if (ptcb != (OS_TCB *)0) {                                  /* Task to delete must exist           */
Os_task.c (source):        ptcb->OSTCBDelReq = OS_TASK_DEL_REQ;                    /* Set flag indicating task to be DEL. */
Os_task.c (source):        err               = OS_TASK_NOT_EXIST;                  /* Task must be deleted                */
Os_task.c (source):*                                        RESUME A SUSPENDED TASK
Os_task.c (source):* Description: This function is called to resume a previously suspended task.  This is the only call that
Os_task.c (source):*              will remove an explicit task suspension.
Os_task.c (source):* Arguments  : prio     is the priority of the task to resume.
Os_task.c (source):* Returns    : OS_NO_ERR                if the requested task is resumed
Os_task.c (source):*              OS_TASK_RESUME_PRIO      if the task to resume does not exist
Os_task.c (source):*              OS_TASK_NOT_SUSPENDED    if the task to resume has not been suspended
Os_task.c (source):#if OS_TASK_SUSPEND_EN > 0
Os_task.c (source):INT8U  OSTaskResume (INT8U prio)
Os_task.c (source):    if (prio >= OS_LOWEST_PRIO) {                               /* Make sure task priority is valid    */
Os_task.c (source):    if (ptcb == (OS_TCB *)0) {                                  /* Task to suspend must exist          */
Os_task.c (source):        return (OS_TASK_RESUME_PRIO);
Os_task.c (source):    if ((ptcb->OSTCBStat & OS_STAT_SUSPEND) != OS_STAT_RDY) {              /* Task must be suspended   */
Os_task.c (source):            OSRdyGrp               |= ptcb->OSTCBBitY;                     /* Make task ready to run   */
Os_task.c (source):    return (OS_TASK_NOT_SUSPENDED);
Os_task.c (source):* Description: This function is called to check the amount of free memory left on the specified task's
Os_task.c (source):* Arguments  : prio     is the task priority
Os_task.c (source):*              OS_TASK_NOT_EXIST   if the desired task has not been created
Os_task.c (source):*              OS_TASK_OPT_ERR     if you did NOT specified OS_TASK_OPT_STK_CHK when the task was created
Os_task.c (source):#if OS_TASK_CREATE_EXT_EN > 0
Os_task.c (source):INT8U  OSTaskStkChk (INT8U prio, OS_STK_DATA *pdata)
Os_task.c (source):    if (prio > OS_LOWEST_PRIO && prio != OS_PRIO_SELF) {        /* Make sure task priority is valid    */
Os_task.c (source):    if (ptcb == (OS_TCB *)0) {                         /* Make sure task exist                         */
Os_task.c (source):        return (OS_TASK_NOT_EXIST);
Os_task.c (source):    if ((ptcb->OSTCBOpt & OS_TASK_OPT_STK_CHK) == 0) { /* Make sure stack checking option is set       */
Os_task.c (source):        return (OS_TASK_OPT_ERR);
Os_task.c (source):*                                            SUSPEND A TASK
Os_task.c (source):* Description: This function is called to suspend a task.  The task can be the calling task if the
Os_task.c (source):*              priority passed to OSTaskSuspend() is the priority of the calling task or OS_PRIO_SELF.
Os_task.c (source):* Arguments  : prio     is the priority of the task to suspend.  If you specify OS_PRIO_SELF, the
Os_task.c (source):*                       calling task will suspend itself and rescheduling will occur.
Os_task.c (source):* Returns    : OS_NO_ERR                if the requested task is suspended
Os_task.c (source):*              OS_TASK_SUSPEND_IDLE     if you attempted to suspend the idle task which is not allowed.
Os_task.c (source):*              OS_TASK_SUSPEND_PRIO     if the task to suspend does not exist
Os_task.c (source):* Note       : You should use this function with great care.  If you suspend a task that is waiting for
Os_task.c (source):*              an event (i.e. a message, a semaphore, a queue ...) you will prevent this task from
Os_task.c (source):#if OS_TASK_SUSPEND_EN > 0
Os_task.c (source):INT8U  OSTaskSuspend (INT8U prio)
Os_task.c (source):    if (prio == OS_IDLE_PRIO) {                                 /* Not allowed to suspend idle task    */
Os_task.c (source):        return (OS_TASK_SUSPEND_IDLE);
Os_task.c (source):    if (prio >= OS_LOWEST_PRIO && prio != OS_PRIO_SELF) {       /* Task priority valid ?               */
Os_task.c (source):        self = FALSE;                                           /* No suspending another task          */
Os_task.c (source):    if (ptcb == (OS_TCB *)0) {                                  /* Task to suspend must exist          */
Os_task.c (source):        return (OS_TASK_SUSPEND_PRIO);
Os_task.c (source):    if ((OSRdyTbl[ptcb->OSTCBY] &= ~ptcb->OSTCBBitX) == 0x00) { /* Make task not ready                 */
Os_task.c (source):    ptcb->OSTCBStat |= OS_STAT_SUSPEND;                         /* Status of task is 'SUSPENDED'       */
Os_task.c (source):*                                            QUERY A TASK
Os_task.c (source):* Description: This function is called to obtain a copy of the desired task's TCB.
Os_task.c (source):* Arguments  : prio     is the priority of the task to obtain information from.
Os_task.c (source):* Returns    : OS_NO_ERR       if the requested task is suspended
Os_task.c (source):*              OS_PRIO_ERR     if the desired task has not been created
Os_task.c (source):#if OS_TASK_QUERY_EN > 0
Os_task.c (source):INT8U  OSTaskQuery (INT8U prio, OS_TCB *pdata)
Os_task.c (source):    if (prio > OS_LOWEST_PRIO && prio != OS_PRIO_SELF) {   /* Task priority valid ?                    */
Os_task.c (source):    if (ptcb == (OS_TCB