UCOS_II.H
资源名称:uCOS-II.rar [点击查看]
上传用户:jinguanrq
上传日期:2022-06-04
资源大小:724k
文件大小:22k
源码类别:
uCOS
开发平台:
C/C++
- /*
- *********************************************************************************************************
- * uC/OS-II
- * The Real-Time Kernel
- *
- * (c) Copyright 1992-1998, Jean J. Labrosse, Plantation, FL
- * All Rights Reserved
- *
- * V2.00
- *
- * File : uCOS_II.H
- * By : Jean J. Labrosse
- *********************************************************************************************************
- */
- /*
- *********************************************************************************************************
- * MISCELLANEOUS
- *********************************************************************************************************
- */
- #define OS_VERSION 200 /* Version of uC/OS-II (Vx.yy multiplied by 100) */
- #ifdef OS_GLOBALS
- #define OS_EXT
- #else
- #define OS_EXT extern
- #endif
- #define OS_PRIO_SELF 0xFF /* Indicate SELF priority */
- #if OS_TASK_STAT_EN
- #define OS_N_SYS_TASKS 2 /* Number of system tasks */
- #else
- #define OS_N_SYS_TASKS 1
- #endif
- #define OS_STAT_PRIO (OS_LOWEST_PRIO - 1) /* Statistic task priority */
- #define OS_IDLE_PRIO (OS_LOWEST_PRIO) /* IDLE task priority */
- #define OS_EVENT_TBL_SIZE ((OS_LOWEST_PRIO) / 8 + 1) /* Size of event table */
- #define OS_RDY_TBL_SIZE ((OS_LOWEST_PRIO) / 8 + 1) /* Size of ready table */
- #define OS_TASK_IDLE_ID 65535 /* I.D. numbers for Idle and Stat tasks */
- #define OS_TASK_STAT_ID 65534
- /* TASK STATUS (Bit definition for OSTCBStat) */
- #define OS_STAT_RDY 0x00 /* Ready to run */
- #define OS_STAT_SEM 0x01 /* Pending on semaphore */
- #define OS_STAT_MBOX 0x02 /* Pending on mailbox */
- #define OS_STAT_Q 0x04 /* Pending on queue */
- #define OS_STAT_SUSPEND 0x08 /* Task is suspended */
- #define OS_EVENT_TYPE_MBOX 1
- #define OS_EVENT_TYPE_Q 2
- #define OS_EVENT_TYPE_SEM 3
- /* TASK OPTIONS (see OSTaskCreateExt()) */
- #define OS_TASK_OPT_STK_CHK 0x0001 /* Enable stack checking for the task */
- #define OS_TASK_OPT_STK_CLR 0x0002 /* Clear the stack when the task is create */
- #define OS_TASK_OPT_SAVE_FP 0x0004 /* Save the contents of any floating-point registers */
- #ifndef FALSE
- #define FALSE 0
- #endif
- #ifndef TRUE
- #define TRUE 1
- #endif
- /*
- *********************************************************************************************************
- * ERROR CODES
- *********************************************************************************************************
- */
- #define OS_NO_ERR 0
- #define OS_ERR_EVENT_TYPE 1
- #define OS_ERR_PEND_ISR 2
- #define OS_TIMEOUT 10
- #define OS_TASK_NOT_EXIST 11
- #define OS_MBOX_FULL 20
- #define OS_Q_FULL 30
- #define OS_PRIO_EXIST 40
- #define OS_PRIO_ERR 41
- #define OS_PRIO_INVALID 42
- #define OS_SEM_OVF 50
- #define OS_TASK_DEL_ERR 60
- #define OS_TASK_DEL_IDLE 61
- #define OS_TASK_DEL_REQ 62
- #define OS_TASK_DEL_ISR 63
- #define OS_NO_MORE_TCB 70
- #define OS_TIME_NOT_DLY 80
- #define OS_TIME_INVALID_MINUTES 81
- #define OS_TIME_INVALID_SECONDS 82
- #define OS_TIME_INVALID_MILLI 83
- #define OS_TIME_ZERO_DLY 84
- #define OS_TASK_SUSPEND_PRIO 90
- #define OS_TASK_SUSPEND_IDLE 91
- #define OS_TASK_RESUME_PRIO 100
- #define OS_TASK_NOT_SUSPENDED 101
- #define OS_MEM_INVALID_PART 110
- #define OS_MEM_INVALID_BLKS 111
- #define OS_MEM_INVALID_SIZE 112
- #define OS_MEM_NO_FREE_BLKS 113
- #define OS_MEM_FULL 114
- #define OS_TASK_OPT_ERR 130
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * EVENT CONTROL BLOCK
- *********************************************************************************************************
- */
- #if (OS_MAX_EVENTS >= 2)
- typedef struct {
- void *OSEventPtr; /* Pointer to message or queue structure */
- INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
- INT16U OSEventCnt; /* Count of used when event is a semaphore */
- INT8U OSEventType; /* OS_EVENT_TYPE_MBOX, OS_EVENT_TYPE_Q or OS_EVENT_TYPE_SEM */
- INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
- } OS_EVENT;
- #endif
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * MESSAGE MAILBOX DATA
- *********************************************************************************************************
- */
- #if OS_MBOX_EN
- typedef struct {
- void *OSMsg; /* Pointer to message in mailbox */
- INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
- INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
- } OS_MBOX_DATA;
- #endif
- /*
- *********************************************************************************************************
- * MEMORY PARTITION DATA STRUCTURES
- *********************************************************************************************************
- */
- #if OS_MEM_EN && (OS_MAX_MEM_PART >= 2)
- typedef struct { /* MEMORY CONTROL BLOCK */
- void *OSMemAddr; /* Pointer to beginning of memory partition */
- void *OSMemFreeList; /* Pointer to list of free memory blocks */
- INT32U OSMemBlkSize; /* Size (in bytes) of each block of memory */
- INT32U OSMemNBlks; /* Total number of blocks in this partition */
- INT32U OSMemNFree; /* Number of memory blocks remaining in this partition */
- } OS_MEM;
- typedef struct {
- void *OSAddr; /* Pointer to the beginning address of the memory partition */
- void *OSFreeList; /* Pointer to the beginning of the free list of memory blocks */
- INT32U OSBlkSize; /* Size (in bytes) of each memory block */
- INT32U OSNBlks; /* Total number of blocks in the partition */
- INT32U OSNFree; /* Number of memory blocks free */
- INT32U OSNUsed; /* Number of memory blocks used */
- } OS_MEM_DATA;
- #endif
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * MESSAGE QUEUE DATA
- *********************************************************************************************************
- */
- #if OS_Q_EN
- typedef struct {
- void *OSMsg; /* Pointer to next message to be extracted from queue */
- INT16U OSNMsgs; /* Number of messages in message queue */
- INT16U OSQSize; /* Size of message queue */
- INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
- INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
- } OS_Q_DATA;
- #endif
- /*
- *********************************************************************************************************
- * SEMAPHORE DATA
- *********************************************************************************************************
- */
- #if OS_SEM_EN
- typedef struct {
- INT16U OSCnt; /* Semaphore count */
- INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
- INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
- } OS_SEM_DATA;
- #endif
- /*
- *********************************************************************************************************
- * TASK STACK DATA
- *********************************************************************************************************
- */
- #if OS_TASK_CREATE_EXT_EN
- typedef struct {
- INT32U OSFree; /* Number of free bytes on the stack */
- INT32U OSUsed; /* Number of bytes used on the stack */
- } OS_STK_DATA;
- #endif
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * TASK CONTROL BLOCK
- *********************************************************************************************************
- */
- typedef struct os_tcb {
- OS_STK *OSTCBStkPtr; /* Pointer to current top of stack */
- #if OS_TASK_CREATE_EXT_EN
- void *OSTCBExtPtr; /* Pointer to user definable data for TCB extension */
- OS_STK *OSTCBStkBottom; /* Pointer to bottom of stack */
- INT32U OSTCBStkSize; /* Size of task stack (in bytes) */
- INT16U OSTCBOpt; /* Task options as passed by OSTaskCreateExt() */
- INT16U OSTCBId; /* Task ID (0..65535) */
- #endif
- struct os_tcb *OSTCBNext; /* Pointer to next TCB in the TCB list */
- struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the TCB list */
- #if (OS_Q_EN && (OS_MAX_QS >= 2)) || OS_MBOX_EN || OS_SEM_EN
- OS_EVENT *OSTCBEventPtr; /* Pointer to event control block */
- #endif
- #if (OS_Q_EN && (OS_MAX_QS >= 2)) || OS_MBOX_EN
- void *OSTCBMsg; /* Message received from OSMboxPost() or OSQPost() */
- #endif
- INT16U OSTCBDly; /* Nbr ticks to delay task or, timeout waiting for event */
- INT8U OSTCBStat; /* Task status */
- INT8U OSTCBPrio; /* Task priority (0 == highest, 63 == lowest) */
- INT8U OSTCBX; /* Bit position in group corresponding to task priority (0..7) */
- INT8U OSTCBY; /* Index into ready table corresponding to task priority */
- INT8U OSTCBBitX; /* Bit mask to access bit position in ready table */
- INT8U OSTCBBitY; /* Bit mask to access bit position in ready group */
- #if OS_TASK_DEL_EN
- BOOLEAN OSTCBDelReq; /* Indicates whether a task needs to delete itself */
- #endif
- } OS_TCB;
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * GLOBAL VARIABLES
- *********************************************************************************************************
- */
- OS_EXT INT32U OSCtxSwCtr; /* Counter of number of context switches */
- #if (OS_MAX_EVENTS >= 2)
- OS_EXT OS_EVENT *OSEventFreeList; /* Pointer to list of free EVENT control blocks */
- OS_EXT OS_EVENT OSEventTbl[OS_MAX_EVENTS];/* Table of EVENT control blocks */
- #endif
- OS_EXT INT32U OSIdleCtr; /* Idle counter */
- #if OS_TASK_STAT_EN
- OS_EXT INT8S OSCPUUsage; /* Percentage of CPU used */
- OS_EXT INT32U OSIdleCtrMax; /* Maximum value that idle counter can take in 1 sec. */
- OS_EXT INT32U OSIdleCtrRun; /* Value reached by idle counter at run time in 1 sec. */
- OS_EXT BOOLEAN OSStatRdy; /* Flag indicating that the statistic task is ready */
- #endif
- OS_EXT INT8U OSIntNesting; /* Interrupt nesting level */
- OS_EXT INT8U OSLockNesting; /* Multitasking lock nesting level */
- OS_EXT INT8U OSPrioCur; /* Priority of current task */
- OS_EXT INT8U OSPrioHighRdy; /* Priority of highest priority task */
- OS_EXT INT8U OSRdyGrp; /* Ready list group */
- OS_EXT INT8U OSRdyTbl[OS_RDY_TBL_SIZE]; /* Table of tasks which are ready to run */
- OS_EXT BOOLEAN OSRunning; /* Flag indicating that kernel is running */
- #if OS_TASK_CREATE_EN || OS_TASK_CREATE_EXT_EN || OS_TASK_DEL_EN
- OS_EXT INT8U OSTaskCtr; /* Number of tasks created */
- #endif
- OS_EXT OS_TCB *OSTCBCur; /* Pointer to currently running TCB */
- OS_EXT OS_TCB *OSTCBFreeList; /* Pointer to list of free TCBs */
- OS_EXT OS_TCB *OSTCBHighRdy; /* Pointer to highest priority TCB ready to run */
- OS_EXT OS_TCB *OSTCBList; /* Pointer to doubly linked list of TCBs */
- OS_EXT OS_TCB *OSTCBPrioTbl[OS_LOWEST_PRIO + 1];/* Table of pointers to created TCBs */
- OS_EXT INT32U OSTime; /* Current value of system time (in ticks) */
- extern INT8U const OSMapTbl[]; /* Priority->Bit Mask lookup table */
- extern INT8U const OSUnMapTbl[]; /* Priority->Index lookup table */
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * FUNCTION PROTOTYPES
- * (Target Independant Functions)
- *********************************************************************************************************
- */
- /*
- *********************************************************************************************************
- * MESSAGE MAILBOX MANAGEMENT
- *********************************************************************************************************
- */
- #if OS_MBOX_EN
- void *OSMboxAccept(OS_EVENT *pevent);
- OS_EVENT *OSMboxCreate(void *msg);
- void *OSMboxPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
- INT8U OSMboxPost(OS_EVENT *pevent, void *msg);
- INT8U OSMboxQuery(OS_EVENT *pevent, OS_MBOX_DATA *pdata);
- #endif
- /*
- *********************************************************************************************************
- * MEMORY MANAGEMENT
- *********************************************************************************************************
- */
- #if OS_MEM_EN && (OS_MAX_MEM_PART >= 2)
- OS_MEM *OSMemCreate(void *addr, INT32U nblks, INT32U blksize, INT8U *err);
- void *OSMemGet(OS_MEM *pmem, INT8U *err);
- INT8U OSMemPut(OS_MEM *pmem, void *pblk);
- INT8U OSMemQuery(OS_MEM *pmem, OS_MEM_DATA *pdata);
- #endif
- /*
- *********************************************************************************************************
- * MESSAGE QUEUE MANAGEMENT
- *********************************************************************************************************
- */
- #if OS_Q_EN && (OS_MAX_QS >= 2)
- void *OSQAccept(OS_EVENT *pevent);
- OS_EVENT *OSQCreate(void **start, INT16U size);
- INT8U OSQFlush(OS_EVENT *pevent);
- void *OSQPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
- INT8U OSQPost(OS_EVENT *pevent, void *msg);
- INT8U OSQPostFront(OS_EVENT *pevent, void *msg);
- INT8U OSQQuery(OS_EVENT *pevent, OS_Q_DATA *pdata);
- #endif
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * SEMAPHORE MANAGEMENT
- *********************************************************************************************************
- */
- #if OS_SEM_EN
- INT16U OSSemAccept(OS_EVENT *pevent);
- OS_EVENT *OSSemCreate(INT16U value);
- void OSSemPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
- INT8U OSSemPost(OS_EVENT *pevent);
- INT8U OSSemQuery(OS_EVENT *pevent, OS_SEM_DATA *pdata);
- #endif
- /*
- *********************************************************************************************************
- * TASK MANAGEMENT
- *********************************************************************************************************
- */
- #if OS_TASK_CHANGE_PRIO_EN
- INT8U OSTaskChangePrio(INT8U oldprio, INT8U newprio);
- #endif
- INT8U OSTaskCreate(void (*task)(void *pd), void *pdata, OS_STK *ptos, INT8U prio);
- #if OS_TASK_CREATE_EXT_EN
- INT8U OSTaskCreateExt(void (*task)(void *pd),
- void *pdata,
- OS_STK *ptos,
- INT8U prio,
- INT16U id,
- OS_STK *pbos,
- INT32U stk_size,
- void *pext,
- INT16U opt);
- #endif
- #if OS_TASK_DEL_EN
- INT8U OSTaskDel(INT8U prio);
- INT8U OSTaskDelReq(INT8U prio);
- #endif
- #if OS_TASK_SUSPEND_EN
- INT8U OSTaskResume(INT8U prio);
- INT8U OSTaskSuspend(INT8U prio);
- #endif
- #if OS_TASK_CREATE_EXT_EN
- INT8U OSTaskStkChk(INT8U prio, OS_STK_DATA *pdata);
- #endif
- INT8U OSTaskQuery(INT8U prio, OS_TCB *pdata);
- /*
- *********************************************************************************************************
- * TIME MANAGEMENT
- *********************************************************************************************************
- */
- void OSTimeDly(INT16U ticks);
- INT8U OSTimeDlyHMSM(INT8U hours, INT8U minutes, INT8U seconds, INT16U milli);
- INT8U OSTimeDlyResume(INT8U prio);
- INT32U OSTimeGet(void);
- void OSTimeSet(INT32U ticks);
- void OSTimeTick(void);
- /*
- *********************************************************************************************************
- * MISCELLANEOUS
- *********************************************************************************************************
- */
- void OSInit(void);
- void OSIntEnter(void);
- void OSIntExit(void);
- void OSSchedLock(void);
- void OSSchedUnlock(void);
- void OSStart(void);
- void OSStatInit(void);
- INT16U OSVersion(void);
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * INTERNAL FUNCTION PROTOTYPES
- * (Your application MUST NOT call these functions)
- *********************************************************************************************************
- */
- #if OS_MBOX_EN || OS_Q_EN || OS_SEM_EN
- void OSEventTaskRdy(OS_EVENT *pevent, void *msg, INT8U msk);
- void OSEventTaskWait(OS_EVENT *pevent);
- void OSEventTO(OS_EVENT *pevent);
- void OSEventWaitListInit(OS_EVENT *pevent);
- #endif
- #if OS_MEM_EN && (OS_MAX_MEM_PART >= 2)
- void OSMemInit(void);
- #endif
- #if OS_Q_EN
- void OSQInit(void);
- #endif
- void OSSched(void);
- void OSTaskIdle(void *data);
- #if OS_TASK_STAT_EN
- void OSTaskStat(void *data);
- #endif
- INT8U OSTCBInit(INT8U prio, OS_STK *ptos, OS_STK *pbos, INT16U id, INT16U stk_size, void *pext, INT16U opt);
- /*$PAGE*/
- /*
- *********************************************************************************************************
- * FUNCTION PROTOTYPES
- * (Target Specific Functions)
- *********************************************************************************************************
- */
- void OSCtxSw(void);
- void OSIntCtxSw(void);
- void OSStartHighRdy(void);
- void OSTaskCreateHook(OS_TCB *ptcb);
- void OSTaskDelHook(OS_TCB *ptcb);
- void OSTaskStatHook(void);
- void *OSTaskStkInit(void (*task)(void *pd), void *pdata, void *ptos, INT16U opt);
- void OSTaskSwHook(void);
- void OSTickISR(void);
- void OSTimeTickHook(void);