本文详细介绍了uC/OS-II实时操作系统的核心组件与功能，包括任务管理、时间管理等模块的设计与实现原理。
/*
*********************************************************************************************************
* uC/OS-II
* The Real-Time Kernel
*
* (c) Copyright 1992-2002, Jean J. Labrosse, Weston, FL
* All Rights Reserved
*
* File : uCOS_II.H
* By : Jean J. Labrosse
* 翻译： likee
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* MISCELLANEOUS
*********************************************************************************************************
*/
#define OS_VERSION 252 /* Version of uC/OS-II (Vx.yy mult. by 100) */
#ifdef OS_GLOBALS
#define OS_EXT
#else
#define OS_EXT extern
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
#define OS_PRIO_SELF 0xFF /* Indicate SELF priority */
#if OS_TASK_STAT_EN > 0
#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
#define OS_EVENT_EN (((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0) || (OS_SEM_EN > 0) || (OS_MUTEX_EN > 0))
//能使队列代码产生&&申请队列控制块最大数不为零||能使邮箱代码产生||
//能使信号量代码产生||能使互斥量代码产生
/*$PAGE*/
/*
*********************************************************************************************************
* 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_STAT_MUTEX 0x10 /* Pending on mutual exclusion semaphore */
#define OS_STAT_FLAG 0x20 /* Pending on event flag group */
/*
*********************************************************************************************************
* OS_EVENT types
*********************************************************************************************************
*/
#define OS_EVENT_TYPE_UNUSED 0
#define OS_EVENT_TYPE_MBOX 1
#define OS_EVENT_TYPE_Q 2
#define OS_EVENT_TYPE_SEM 3
#define OS_EVENT_TYPE_MUTEX 4
#define OS_EVENT_TYPE_FLAG 5
/*
*********************************************************************************************************
* EVENT FLAGS
*********************************************************************************************************
*/
#define OS_FLAG_WAIT_CLR_ALL 0 /* Wait for ALL the bits specified to be CLR (i.e. 0) */
#define OS_FLAG_WAIT_CLR_AND 0
#define OS_FLAG_WAIT_CLR_ANY 1 /* Wait for ANY of the bits specified to be CLR (i.e. 0) */
#define OS_FLAG_WAIT_CLR_OR 1
#define OS_FLAG_WAIT_SET_ALL 2 /* Wait for ALL the bits specified to be SET (i.e. 1) */
#define OS_FLAG_WAIT_SET_AND 2
#define OS_FLAG_WAIT_SET_ANY 3 /* Wait for ANY of the bits specified to be SET (i.e. 1) */
#define OS_FLAG_WAIT_SET_OR 3
#define OS_FLAG_CONSUME 0x80 /* Consume the flags if condition(s) satisfied */
#define OS_FLAG_CLR 0
#define OS_FLAG_SET 1
/*
*********************************************************************************************************
* Possible values for 'opt' argument of OSSemDel(), OSMboxDel(), OSQDel() and OSMutexDel()
*********************************************************************************************************
*/
#define OS_DEL_NO_PEND 0
#define OS_DEL_ALWAYS 1
/*
*********************************************************************************************************
* OS???PostOpt() OPTIONS
*
* These #defines are used to establish the options for OSMboxPostOpt() and OSQPostOpt().
*********************************************************************************************************
*/
#define OS_POST_OPT_NONE 0x00 /* Post to highest priority task waiting */
#define OS_POST_OPT_BROADCAST 0x01 /* Broadcast message to ALL tasks waiting */
#define OS_POST_OPT_FRONT 0x02 /* Post to highest priority task waiting */
/*
*********************************************************************************************************
* 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 */
/*
*********************************************************************************************************
* ERROR CODES
*********************************************************************************************************
*/
#define OS_NO_ERR 0
#define OS_ERR_EVENT_TYPE 1
#define OS_ERR_PEND_ISR 2
#define OS_ERR_POST_NULL_PTR 3
#define OS_ERR_PEVENT_NULL 4
#define OS_ERR_POST_ISR 5
#define OS_ERR_QUERY_ISR 6
#define OS_ERR_INVALID_OPT 7
#define OS_ERR_TASK_WAITING 8
#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_MEM_INVALID_PBLK 115
#define OS_MEM_INVALID_PMEM 116
#define OS_MEM_INVALID_PDATA 117
#define OS_MEM_INVALID_ADDR 118
#define OS_ERR_NOT_MUTEX_OWNER 120
#define OS_TASK_OPT_ERR 130
#define OS_ERR_DEL_ISR 140
#define OS_ERR_CREATE_ISR 141
#define OS_FLAG_INVALID_PGRP 150
#define OS_FLAG_ERR_WAIT_TYPE 151
#define OS_FLAG_ERR_NOT_RDY 152
#define OS_FLAG_INVALID_OPT 153
#define OS_FLAG_GRP_DEPLETED 154
/*$PAGE*/
/*
*********************************************************************************************************
* EVENT CONTROL BLOCK
*********************************************************************************************************
*/
#if (OS_EVENT_EN > 0) && (OS_MAX_EVENTS > 0)
typedef struct {
INT8U OSEventType; /* Type of event control block (see OS_EVENT_TYPE_???) */
//事件控制块类型（见OS_EVENT_TYPE）
INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
//事件群体响应去等待任务事件发生
INT16U OSEventCnt; /* Semaphore Count (not used if other EVENT type) */
//信号量，在其它事件中不用
void *OSEventPtr; /* Pointer to message or queue structure */
//消息或者队列结构指针
INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
//任务列表等待事件发生
} OS_EVENT;
#endif
/*
*********************************************************************************************************
* EVENT FLAGS CONTROL BLOCK
*********************************************************************************************************
*/
#if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
typedef struct { /* Event Flag Group */
INT8U OSFlagType; /* Should be set to OS_EVENT_TYPE_FLAG */
void *OSFlagWaitList; /* Pointer to first NODE of task waiting on event flag */
OS_FLAGS OSFlagFlags; /* 8, 16 or 32 bit flags */
} OS_FLAG_GRP;
typedef struct { /* Event Flag Wait List Node */
void *OSFlagNodeNext; /* Pointer to next NODE in wait list */
void *OSFlagNodePrev; /* Pointer to previous NODE in wait list */
void *OSFlagNodeTCB; /* Pointer to TCB of waiting task */
void *OSFlagNodeFlagGrp; /* Pointer to Event Flag Group */
OS_FLAGS OSFlagNodeFlags; /* Event flag to wait on */
INT8U OSFlagNodeWaitType; /* Type of wait: */
/* OS_FLAG_WAIT_AND */
/* OS_FLAG_WAIT_ALL */
/* OS_FLAG_WAIT_OR */
/* OS_FLAG_WAIT_ANY */
} OS_FLAG_NODE;
#endif
/*
*********************************************************************************************************
* MESSAGE MAILBOX DATA
*********************************************************************************************************
*/
#if OS_MBOX_EN > 0
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 > 0) && (OS_MAX_MEM_PART > 0)
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*/
/*
*********************************************************************************************************
* MUTUAL EXCLUSION SEMAPHORE DATA
*********************************************************************************************************
*/
#if OS_MUTEX_EN > 0
typedef struct {
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 */
INT8U OSValue; /* Mutex value (0 = used, 1 = available) */
INT8U OSOwnerPrio; /* Mutex owner's task priority or 0xFF if no owner */
INT8U OSMutexPIP; /* Priority Inheritance Priority or 0xFF if no owner */
} OS_MUTEX_DATA;
#endif
/*
*********************************************************************************************************
* MESSAGE QUEUE DATA
*********************************************************************************************************
*/
#if OS_Q_EN > 0
typedef struct os_q { /* QUEUE CONTROL BLOCK */
struct os_q *OSQPtr; /* Link to next queue control block in list of free blocks */
void **OSQStart; /* Pointer to start of queue data */
void **OSQEnd; /* Pointer to end of queue data */
void **OSQIn; /* Pointer to where next message will be inserted in the Q */
void **OSQOut; /* Pointer to where next message will be extracted from the Q */
INT16U OSQSize; /* Size of queue (maximum number of entries) */
INT16U OSQEntries; /* Current number of entries in the queue */
} OS_Q;
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 > 0
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 > 0
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 */
//OS_STK为unsigned int 指向当前堆顶部的指针
#if OS_TASK_CREATE_EXT_EN > 0 // 使OS_TASK_CREATE_EXT中包含代码
void *OSTCBExtPtr; /* Pointer to user definable data for TCB extension */
//用户定义用于TCB扩展的数据指针
OS_STK *OSTCBStkBottom; /* Pointer to bottom of stack */
//堆底部指针
INT32U OSTCBStkSize; /* Size of task stack (in number of stack elements) */
//任务堆栈大小
INT16U OSTCBOpt; /* Task options as passed by OSTaskCreateExt() */
//由OSTaskCreateExt() 传递的任务选项
INT16U OSTCBId; /* Task ID (0..65535) */
//任务ID
#endif
struct os_tcb *OSTCBNext; /* Pointer to next TCB in the TCB list */
//在TCB列表中指向下一个TCB
struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the TCB list */
//指向前一个TCB
#if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0) || (OS_SEM_EN > 0) || (OS_MUTEX_EN > 0)
//能使队列代码产生&&申请队列控制块最大数不为零||能使邮箱代码产生||
//能使信号量代码产生||能使互斥量代码产生
OS_EVENT *OSTCBEventPtr; /* Pointer to event control block */
//事件控制块指针
#endif
#if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0)
//能使队列代码产生&&申请队列控制块最大数不为零||能使邮箱代码产生
void *OSTCBMsg; /* Message received from OSMboxPost() or OSQPost() */
//从邮箱或者队列中接收消息
#endif
#if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
//OS版本大于251&&事件标志代码产生能使||应用程序中最大的事件标志组数
#if OS_TASK_DEL_EN > 0 /*能使包含任务删除头文件*/
OS_FLAG_NODE *OSTCBFlagNode; /* Pointer to event flag node */
//事件标志结点指针
#endif
OS_FLAGS OSTCBFlagsRdy; /* Event flags that made task ready to run */
// OS_FLAGS 即为unsigned int 任务就绪事件标志
#endif
INT16U OSTCBDly; /* Nbr ticks to delay task or, timeout waiting for event */
//延时任务或者等待任务时间溢出
INT8U OSTCBStat; /* Task status */
//任务状态
INT8U OSTCBPrio; /* Task priority (0 == highest, 63 == lowest) */
//任务优先级
INT8U OSTCBX; /* Bit position in group corresponding to task priority (0..7) */
//在组中位的位置，与任务优先级对应
INT8U OSTCBY; /* Index into ready table corresponding to task priority */
//与任务优先级对应的就绪列表索引
INT8U OSTCBBitX; /* Bit mask to access bit position in ready table */
//在就绪列表中存取位位置的位掩码
INT8U OSTCBBitY; /* Bit mask to access bit position in ready group */
//在就绪组中存取位位置的位掩码
#if OS_TASK_DEL_EN > 0
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_EVENT_EN > 0) && (OS_MAX_EVENTS > 0)
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
#if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
OS_EXT OS_FLAG_GRP OSFlagTbl[OS_MAX_FLAGS]; /* Table containing event flag groups */
OS_EXT OS_FLAG_GRP *OSFlagFreeList; /* Pointer to free list of event flag groups */
#endif
#if OS_TASK_STAT_EN > 0
OS_EXT INT8S OSCPUUsage; /* Percentage of CPU used */
OS_EXT INT32U OSIdleCtrMax; /* Max. value that idle ctr can take in 1 sec. */
OS_EXT INT32U OSIdleCtrRun; /* Val. reached by idle ctr at run time in 1 sec. */
OS_EXT BOOLEAN OSStatRdy; /* Flag indicating that the statistic task is rdy */
OS_EXT OS_STK OSTaskStatStk[OS_TASK_STAT_STK_SIZE]; /* Statistics task stack */
#endif
OS_EXT INT8U OSIntNesting; /* Interrupt nesting level */
OS_EXT INT8U OSIntExitY;
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 */
//BOOLEAN 即：unsigned char ，OS_EXT 即为extern
OS_EXT INT8U OSTaskCtr; /* Number of tasks created */
OS_EXT volatile INT32U OSIdleCtr; /* Idle counter */
OS_EXT OS_STK OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE]; /* Idle task stack */
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 R-to-R */
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 OS_TCB OSTCBTbl[OS_MAX_TASKS + OS_N_SYS_TASKS]; /* Table of TCBs */
#if (OS_MEM_EN > 0) && (OS_MAX_MEM_PART > 0)
OS_EXT OS_MEM *OSMemFreeList; /* Pointer to free list of memory partitions */
OS_EXT OS_MEM OSMemTbl[OS_MAX_MEM_PART];/* Storage for memory partition manager */
#endif
#if (OS_Q_EN > 0) && (OS_MAX_QS > 0)
OS_EXT OS_Q *OSQFreeList; /* Pointer to list of free QUEUE control blocks */
OS_EXT OS_Q OSQTbl[OS_MAX_QS]; /* Table of QUEUE control blocks */
#endif
#if OS_TIME_GET_SET_EN > 0
OS_EXT volatile INT32U OSTime; /* Current value of system time (in ticks) */
#endif
extern INT8U const OSMapTbl[]; /* Priority->Bit Mask lookup table */
extern INT8U const OSUnMapTbl[]; /* Priority->Index lookup table */
/*$PAGE*/
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
* (Target Independent Functions)
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* EVENT FLAGS MANAGEMENT
*********************************************************************************************************
*/
#if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
#if OS_FLAG_ACCEPT_EN > 0
OS_FLAGS OSFlagAccept(OS_FLAG_GRP *pgrp, OS_FLAGS flags, INT8U wait_type, INT8U *err);
#endif
OS_FLAG_GRP *OSFlagCreate(OS_FLAGS flags, INT8U *err);
#if OS_FLAG_DEL_EN > 0
OS_FLAG_GRP *OSFlagDel(OS_FLAG_GRP *pgrp, INT8U opt, INT8U *err);
#endif
OS_FLAGS OSFlagPend(OS_FLAG_GRP *pgrp, OS_FLAGS flags, INT8U wait_type, INT16U timeout, INT8U *err);
OS_FLAGS OSFlagPost(OS_FLAG_GRP *pgrp, OS_FLAGS flags, INT8U operation, INT8U *err);
#if OS_FLAG_QUERY_EN > 0
OS_FLAGS OSFlagQuery(OS_FLAG_GRP *pgrp, INT8U *err);
#endif
#endif
/*
*********************************************************************************************************
* MESSAGE MAILBOX MANAGEMENT
*********************************************************************************************************
*/
#if OS_MBOX_EN > 0
#if OS_MBOX_ACCEPT_EN > 0
void *OSMboxAccept(OS_EVENT *pevent);
#endif
OS_EVENT *OSMboxCreate(void *msg);
#if OS_MBOX_DEL_EN > 0
OS_EVENT *OSMboxDel(OS_EVENT *pevent, INT8U opt, INT8U *err);
#endif
void *OSMboxPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
#if OS_MBOX_POST_EN > 0
INT8U OSMboxPost(OS_EVENT *pevent, void *msg);
#endif
#if OS_MBOX_POST_OPT_EN > 0
INT8U OSMboxPostOpt(OS_EVENT *pevent, void *msg, INT8U opt);
#endif
#if OS_MBOX_QUERY_EN > 0
INT8U OSMboxQuery(OS_EVENT *pevent, OS_MBOX_DATA *pdata);
#endif
#endif
/*
*********************************************************************************************************
* MEMORY MANAGEMENT
*********************************************************************************************************
*/
#if (OS_MEM_EN > 0) && (OS_MAX_MEM_PART > 0)
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);
#if OS_MEM_QUERY_EN > 0
INT8U OSMemQuery(OS_MEM *pmem, OS_MEM_DATA *pdata);
#endif
#endif
/*
*********************************************************************************************************
* MUTUAL EXCLUSION SEMAPHORE MANAGEMENT
*********************************************************************************************************
*/
#if OS_MUTEX_EN > 0
#if OS_MUTEX_ACCEPT_EN > 0
INT8U OSMutexAccept(OS_EVENT *pevent, INT8U *err);
#endif
OS_EVENT *OSMutexCreate(INT8U prio, INT8U *err);
#if OS_MUTEX_DEL_EN > 0
OS_EVENT *OSMutexDel(OS_EVENT *pevent, INT8U opt, INT8U *err);
#endif
void OSMutexPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
INT8U OSMutexPost(OS_EVENT *pevent);
#if OS_MUTEX_QUERY_EN > 0
INT8U OSMutexQuery(OS_EVENT *pevent, OS_MUTEX_DATA *pdata);
#endif
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* MESSAGE QUEUE MANAGEMENT
*********************************************************************************************************
*/
#if (OS_Q_EN > 0) && (OS_MAX_QS > 0)
#if OS_Q_ACCEPT_EN > 0
void *OSQAccept(OS_EVENT *pevent);
#endif
OS_EVENT *OSQCreate(void **start, INT16U size);
#if OS_Q_DEL_EN > 0
OS_EVENT *OSQDel(OS_EVENT *pevent, INT8U opt, INT8U *err);
#endif
#if OS_Q_FLUSH_EN > 0
INT8U OSQFlush(OS_EVENT *pevent);
#endif
void *OSQPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
#if OS_Q_POST_EN > 0
INT8U OSQPost(OS_EVENT *pevent, void *msg);
#endif
#if OS_Q_POST_FRONT_EN > 0
INT8U OSQPostFront(OS_EVENT *pevent, void *msg);
#endif
#if OS_Q_POST_OPT_EN > 0
INT8U OSQPostOpt(OS_EVENT *pevent, void *msg, INT8U opt);
#endif
#if OS_Q_QUERY_EN > 0
INT8U OSQQuery(OS_EVENT *pevent, OS_Q_DATA *pdata);
#endif
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* SEMAPHORE MANAGEMENT
*********************************************************************************************************
*/
#if OS_SEM_EN > 0
#if OS_SEM_ACCEPT_EN > 0
INT16U OSSemAccept(OS_EVENT *pevent);
#endif
OS_EVENT *OSSemCreate(INT16U cnt);
#if OS_SEM_DEL_EN > 0
OS_EVENT *OSSemDel(OS_EVENT *pevent, INT8U opt, INT8U *err);
#endif
void OSSemPend(OS_EVENT *pevent, INT16U timeout, INT8U *err);
INT8U OSSemPost(OS_EVENT *pevent);
#if OS_SEM_QUERY_EN > 0
INT8U OSSemQuery(OS_EVENT *pevent, OS_SEM_DATA *pdata);
#endif
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* TASK MANAGEMENT
*********************************************************************************************************
*/
#if OS_TASK_CHANGE_PRIO_EN > 0
INT8U OSTaskChangePrio(INT8U oldprio, INT8U newprio);
#endif
#if OS_TASK_CREATE_EN > 0
INT8U OSTaskCreate(void (*task)(void *pd), void *pdata, OS_STK *ptos, INT8U prio);
#endif
#if OS_TASK_CREATE_EXT_EN > 0
INT8U OSTaskCreateExt(void (*task)(void *pd),
void *pdata,
OS_STK *ptos,
INT8U prio,
INT16U id,
OS_STK *pbos,
INT32U stk_size,
void *pext,
INT16U opt);
#endif
#if OS_TASK_DEL_EN > 0
INT8U OSTaskDel(INT8U prio);
INT8U OSTaskDelReq(INT8U prio);
#endif
#if OS_TASK_SUSPEND_EN > 0
INT8U OSTaskResume(INT8U prio);
INT8U OSTaskSuspend(INT8U prio);
#endif
#if OS_TASK_CREATE_EXT_EN > 0
INT8U OSTaskStkChk(INT8U prio, OS_STK_DATA *pdata);
#endif
#if OS_TASK_QUERY_EN > 0
INT8U OSTaskQuery(INT8U prio, OS_TCB *pdata);
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* TIME MANAGEMENT
*********************************************************************************************************
*/
void OSTimeDly(INT16U ticks);
#if OS_TIME_DLY_HMSM_EN > 0
INT8U OSTimeDlyHMSM(INT8U hours, INT8U minutes, INT8U seconds, INT16U milli);
#endif
#if OS_TIME_DLY_RESUME_EN > 0
INT8U OSTimeDlyResume(INT8U prio);
#endif
#if OS_TIME_GET_SET_EN > 0
INT32U OSTimeGet(void);
void OSTimeSet(INT32U ticks);
#endif
void OSTimeTick(void);
/*
*********************************************************************************************************
* MISCELLANEOUS
*********************************************************************************************************
*/
void OSInit(void);
void OSIntEnter(void);
void OSIntExit(void);
#if OS_SCHED_LOCK_EN > 0
void OSSchedLock(void);
void OSSchedUnlock(void);
#endif
void OSStart(void);
void OSStatInit(void);
INT16U OSVersion(void);
/*$PAGE*/
/*
*********************************************************************************************************
* INTERNAL FUNCTION PROTOTYPES
* (Your application MUST NOT call these functions)
*********************************************************************************************************
*/
#if OS_TASK_DEL_EN > 0
void OS_Dummy(void);
#endif
#if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0) || (OS_SEM_EN > 0) || (OS_MUTEX_EN > 0)
INT8U OS_EventTaskRdy(OS_EVENT *pevent, void *msg, INT8U msk);
void OS_EventTaskWait(OS_EVENT *pevent);
void OS_EventTO(OS_EVENT *pevent);
void OS_EventWaitListInit(OS_EVENT *pevent);
#endif
#if (OS_VERSION >= 251) && (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
void OS_FlagInit(void);
void OS_FlagUnlink(OS_FLAG_NODE *pnode);
#endif
#if (OS_MEM_EN > 0) && (OS_MAX_MEM_PART > 0)
void OS_MemInit(void);
#endif
#if OS_Q_EN > 0
void OS_QInit(void);
#endif
void OS_Sched(void);
void OS_TaskIdle(void *data);
#if OS_TASK_STAT_EN > 0
void OS_TaskStat(void *data);
#endif
INT8U OS_TCBInit(INT8U prio, OS_STK *ptos, OS_STK *pbos, INT16U id, INT32U stk_size, void *pext, INT16U opt);
/*$PAGE*/
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
* (Target Specific Functions)
*********************************************************************************************************
*/
#if OS_VERSION >= 204
void OSInitHookBegin(void);
void OSInitHookEnd(void);
#endif
void OSIntCtxSw(void);
void OSStartHighRdy(void);
void OSTaskCreateHook(OS_TCB *ptcb);
void OSTaskDelHook(OS_TCB *ptcb);
#if OS_VERSION >= 251
void OSTaskIdleHook(void);
#endif
void OSTaskStatHook(void);
OS_STK *OSTaskStkInit(void (*task)(void *pd), void *pdata, OS_STK *ptos, INT16U opt);
void OSTaskSwHook(void);
#if OS_VERSION >= 204
void OSTCBInitHook(OS_TCB *ptcb);
#endif
void OSTimeTickHook(void);
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
* (Compiler Specific ISR prototypes)
*********************************************************************************************************
*/
#ifndef OS_ISR_PROTO_EXT
void OSCtxSw(void);
void OSTickISR(void);
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* LOOK FOR MISSING #define CONSTANTS
*
* This section is used to generate ERROR messages at compile time if certain #define constants are
* MISSING in OS_CFG.H. This allows you to quickly determine the source of the error.
*
* You SHOULD NOT change this section UNLESS you would like to add more comments as to the source of the
* compile time error.
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* EVENT FLAGS
*********************************************************************************************************
*/
#ifndef OS_FLAG_EN
#error "OS_CFG.H, Missing OS_FLAG_EN: Enable (1) or Disable (0) code generation for Event Flags"
#else
#ifndef OS_MAX_FLAGS
#error "OS_CFG.H, Missing OS_MAX_FLAGS: Max. number of Event Flag Groups in your application"
#else
#if OS_MAX_FLAGS == 0
#error "OS_CFG.H, OS_MAX_FLAGS must be > 0"
#endif
#if OS_MAX_FLAGS > 255
#error "OS_CFG.H, OS_MAX_FLAGS must be <= 255"
#endif
#endif
#ifndef OS_FLAG_WAIT_CLR_EN
#error "OS_CFG.H, Missing OS_FLAG_WAIT_CLR_EN: Include code for Wait on Clear EVENT FLAGS"
#endif
#ifndef OS_FLAG_ACCEPT_EN
#error "OS_CFG.H, Missing OS_FLAG_ACCEPT_EN: Include code for OSFlagAccept()"
#endif
#ifndef OS_FLAG_DEL_EN
#error "OS_CFG.H, Missing OS_FLAG_DEL_EN: Include code for OSFlagDel()"
#endif
#ifndef OS_FLAG_QUERY_EN
#error "OS_CFG.H, Missing OS_FLAG_QUERY_EN: Include code for OSFlagQuery()"
#endif
#endif
/*
*********************************************************************************************************
* MESSAGE MAILBOXES
*********************************************************************************************************
*/
#ifndef OS_MBOX_EN
#error "OS_CFG.H, Missing OS_MBOX_EN: Enable (1) or Disable (0) code generation for MAILBOXES"
#else
#ifndef OS_MBOX_ACCEPT_EN
#error "OS_CFG.H, Missing OS_MBOX_ACCEPT_EN: Include code for OSMboxAccept()"
#endif
#ifndef OS_MBOX_DEL_EN
#error "OS_CFG.H, Missing OS_MBOX_DEL_EN: Include code for OSMboxDel()"
#endif
#ifndef OS_MBOX_POST_EN
#error "OS_CFG.H, Missing OS_MBOX_POST_EN: Include code for OSMboxPost()"
#endif
#ifndef OS_MBOX_POST_OPT_EN
#error "OS_CFG.H, Missing OS_MBOX_POST_OPT_EN: Include code for OSMboxPostOpt()"
#endif
#ifndef OS_MBOX_QUERY_EN
#error "OS_CFG.H, Missing OS_MBOX_QUERY_EN: Include code for OSMboxQuery()"
#endif
#endif
/*
*********************************************************************************************************
* MEMORY MANAGEMENT
*********************************************************************************************************
*/
#ifndef OS_MEM_EN
#error "OS_CFG.H, Missing OS_MEM_EN: Enable (1) or Disable (0) code generation for MEMORY MANAGER"
#else
#ifndef OS_MAX_MEM_PART
#error "OS_CFG.H, Missing OS_MAX_MEM_PART: Max. number of memory partitions"
#else
#if OS_MAX_MEM_PART == 0
#error "OS_CFG.H, OS_MAX_MEM_PART must be > 0"
#endif
#if OS_MAX_MEM_PART > 255
#error "OS_CFG.H, OS_MAX_MEM_PART must be <= 255"
#endif
#endif
#ifndef OS_MEM_QUERY_EN
#error "OS_CFG.H, Missing OS_MEM_QUERY_EN: Include code for OSMemQuery()"
#endif
#endif
/*
*********************************************************************************************************
* MUTUAL EXCLUSION SEMAPHORES
*********************************************************************************************************
*/
#ifndef OS_MUTEX_EN
#error "OS_CFG.H, Missing OS_MUTEX_EN: Enable (1) or Disable (0) code generation for MUTEX"
#else
#ifndef OS_MUTEX_ACCEPT_EN
#error "OS_CFG.H, Missing OS_MUTEX_ACCEPT_EN: Include code for OSMutexAccept()"
#endif
#ifndef OS_MUTEX_DEL_EN
#error "OS_CFG.H, Missing OS_MUTEX_DEL_EN: Include code for OSMutexDel()"
#endif
#ifndef OS_MUTEX_QUERY_EN
#error "OS_CFG.H, Missing OS_MUTEX_QUERY_EN: Include code for OSMutexQuery()"
#endif
#endif
/*
*********************************************************************************************************
* MESSAGE QUEUES
*********************************************************************************************************
*/
#ifndef OS_Q_EN
#error "OS_CFG.H, Missing OS_Q_EN: Enable (1) or Disable (0) code generation for QUEUES"
#else
#ifndef OS_MAX_QS
#error "OS_CFG.H, Missing OS_MAX_QS: Max. number of queue control blocks"
#else
#if OS_MAX_QS == 0
#error "OS_CFG.H, OS_MAX_QS must be > 0"
#endif
#if OS_MAX_QS > 255
#error "OS_CFG.H, OS_MAX_QS must be <= 255"
#endif
#endif
#ifndef OS_Q_ACCEPT_EN
#error "OS_CFG.H, Missing OS_Q_ACCEPT_EN: Include code for OSQAccept()"
#endif
#ifndef OS_Q_DEL_EN
#error "OS_CFG.H, Missing OS_Q_DEL_EN: Include code for OSQDel()"
#endif
#ifndef OS_Q_FLUSH_EN
#error "OS_CFG.H, Missing OS_Q_FLUSH_EN: Include code for OSQFlush()"
#endif
#ifndef OS_Q_POST_EN
#error "OS_CFG.H, Missing OS_Q_POST_EN: Include code for OSQPost()"
#endif
#ifndef OS_Q_POST_FRONT_EN
#error "OS_CFG.H, Missing OS_Q_POST_FRONT_EN: Include code for OSQPostFront()"
#endif
#ifndef OS_Q_POST_OPT_EN
#error "OS_CFG.H, Missing OS_Q_POST_OPT_EN: Include code for OSQPostOpt()"
#endif
#ifndef OS_Q_QUERY_EN
#error "OS_CFG.H, Missing OS_Q_QUERY_EN: Include code for OSQQuery()"
#endif
#endif
/*
*********************************************************************************************************
* SEMAPHORES
*********************************************************************************************************
*/
#ifndef OS_SEM_EN
#error "OS_CFG.H, Missing OS_SEM_EN: Enable (1) or Disable (0) code generation for SEMAPHORES"
#else
#ifndef OS_SEM_ACCEPT_EN
#error "OS_CFG.H, Missing OS_SEM_ACCEPT_EN: Include code for OSSemAccept()"
#endif
#ifndef OS_SEM_DEL_EN
#error "OS_CFG.H, Missing OS_SEM_DEL_EN: Include code for OSSemDel()"
#endif
#ifndef OS_SEM_QUERY_EN
#error "OS_CFG.H, Missing OS_SEM_QUERY_EN: Include code for OSSemQuery()"
#endif
#endif
/*
*********************************************************************************************************
* TASK MANAGEMENT
*********************************************************************************************************
*/
#ifndef OS_MAX_TASKS
#error "OS_CFG.H, Missing OS_MAX_TASKS: Max. number of tasks in your application"
#else
#if OS_MAX_TASKS == 0
#error "OS_CFG.H, OS_MAX_TASKS must be >= 2"
#endif
#if OS_MAX_TASKS > 63
#error "OS_CFG.H, OS_MAX_TASKS must be <= 63"
#endif
#endif
#ifndef OS_TASK_IDLE_STK_SIZE
#error "OS_CFG.H, Missing OS_TASK_IDLE_STK_SIZE: Idle task stack size"
#endif
#ifndef OS_TASK_STAT_EN
#error "OS_CFG.H, Missing OS_TASK_STAT_EN: Enable (1) or Disable(0) the statistics task"
#endif
#ifndef OS_TASK_STAT_STK_SIZE
#error "OS_CFG.H, Missing OS_TASK_STAT_STK_SIZE: Statistics task stack size"
#endif
#ifndef OS_TASK_CHANGE_PRIO_EN
#error "OS_CFG.H, Missing OS_TASK_CHANGE_PRIO_EN: Include code for OSTaskChangePrio()"
#endif
#ifndef OS_TASK_CREATE_EN
#error "OS_CFG.H, Missing OS_TASK_CREATE_EN: Include code for OSTaskCreate()"
#endif
#ifndef OS_TASK_CREATE_EXT_EN
#error "OS_CFG.H, Missing OS_TASK_CREATE_EXT_EN: Include code for OSTaskCreateExt()"
#endif
#ifndef OS_TASK_DEL_EN
#error "OS_CFG.H, Missing OS_TASK_DEL_EN: Include code for OSTaskDel()"
#endif
#ifndef OS_TASK_SUSPEND_EN
#error "OS_CFG.H, Missing OS_TASK_SUSPEND_EN: Include code for OSTaskSuspend() and OSTaskResume()"
#endif
#ifndef OS_TASK_QUERY_EN
#error "OS_CFG.H, Missing OS_TASK_QUERY_EN: Include code for OSTaskQuery()"
#endif
/*
*********************************************************************************************************
* TIME MANAGEMENT
*********************************************************************************************************
*/
#ifndef OS_TICKS_PER_SEC
#error "OS_CFG.H, Missing OS_TICKS_PER_SEC: Sets the number of ticks in one second"
#endif
#ifndef OS_TIME_DLY_HMSM_EN
#error "OS_CFG.H, Missing OS_TIME_DLY_HMSM_EN: Include code for OSTimeDlyHMSM()"
#endif
#ifndef OS_TIME_DLY_RESUME_EN
#error "OS_CFG.H, Missing OS_TIME_DLY_RESUME_EN: Include code for OSTimeDlyResume()"
#endif
#ifndef OS_TIME_GET_SET_EN
#error "OS_CFG.H, Missing OS_TIME_GET_SET_EN: Include code for OSTimeGet() and OSTimeSet()"
#endif
/*
*********************************************************************************************************
* MISCELLANEOUS
*********************************************************************************************************
*/
#ifndef OS_MAX_EVENTS
#error "OS_CFG.H, Missing OS_MAX_EVENTS: Max. number of event control blocks in your application"
#else
#if OS_MAX_EVENTS == 0
#error "OS_CFG.H, OS_MAX_EVENTS must be > 0"
#endif
#if OS_MAX_EVENTS > 255
#error "OS_CFG.H, OS_MAX_EVENTS must be <= 255"
#endif
#endif
#ifndef OS_LOWEST_PRIO
#error "OS_CFG.H, Missing OS_LOWEST_PRIO: Defines the lowest priority that can be assigned"
#endif
#ifndef OS_ARG_CHK_EN
#error "OS_CFG.H, Missing OS_ARG_CHK_EN: Enable (1) or Disable (0) argument checking"
#endif
#ifndef OS_CPU_HOOKS_EN
#error "OS_CFG.H, Missing OS_CPU_HOOKS_EN: uC/OS-II hooks are found in the processor port files when 1"
#endif
#ifndef OS_SCHED_LOCK_EN
#error "OS_CFG.H, Missing OS_SCHED_LOCK_EN: Include code for OSSchedLock() and OSSchedUnlock()"
#endif
μCOS-II源码文件之uCOS_II.H
最新推荐文章于 2021-01-07 00:30:00 发布
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