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uCOS_II.H
/*
*********************************************************************************************************
* uC/OS-II
* The Real-Time Kernel
*
* (c) Copyright 1992-2002, Jean J. Labrosse, Weston, FL
* A
2、ll Rights Reserved
*
* File : uCOS_II.H
* By : Jean J. Labrosse
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* MISCELL
3、ANEOUS
*********************************************************************************************************
*/
#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
#e
4、ndif
#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 */
#d
5、efine 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 */
#def
6、ine 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))
//能使隊(duì)列代碼產(chǎn)生&&申請(qǐng)隊(duì)列控制塊最大數(shù)不為零||能使郵箱代碼產(chǎn)生||
//能使信號(hào)量代碼產(chǎn)生||能使互斥量代碼產(chǎn)生
/*$PAGE*/
/*
**************************************************************************
7、*******************************
* TASK STATUS (Bit definition for OSTCBStat)
*********************************************************************************************************
*/
#define OS_STAT_RDY 0x00 /* Ready to run */
#define OS_STAT_SEM 0x01 /* Pending on semaphore */
#define OS_S
8、TAT_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 */
/*
*********************
9、************************************************************************************
* OS_EVENT types
*********************************************************************************************************
*/
#define OS_EVENT_TYPE_UNUSED 0
#define OS_EVENT_TYPE_MBOX 1
#define OS_EVENT_TYPE_Q
10、 2
#define OS_EVENT_TYPE_SEM 3
#define OS_EVENT_TYPE_MUTEX 4
#define OS_EVENT_TYPE_FLAG 5
/*
*********************************************************************************************************
* EVENT FLAGS
*******************************************************************************
11、**************************
*/
#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_
12、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) satisfie
13、d */
#define OS_FLAG_CLR 0
#define OS_FLAG_SET 1
/*
*********************************************************************************************************
* Possible values for opt argument of OSSemDel(), OSMboxDel(), OSQDel() and OSMutexDel()
*********************************************
14、************************************************************
*/
#define OS_DEL_NO_PEND 0
#define OS_DEL_ALWAYS 1
/*
*********************************************************************************************************
* OS???PostOpt() OPTIONS
*
* These #defines are used to establish the
15、 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 tas
16、ks waiting */
#define OS_POST_OPT_FRONT 0x02 /* Post to highest priority task waiting */
/*
*********************************************************************************************************
* TASK OPTIONS (see OSTaskCreateExt())
*******************************************************
17、**************************************************
*/
#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 registe
18、rs */
/*
*********************************************************************************************************
* ERROR CODES
*********************************************************************************************************
*/
#define OS_NO_ERR 0
#define OS_ERR_EVENT_TYPE 1
#def
19、ine 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
20、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_INVALI
21、D_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_IN
22、VALID_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_ER
23、R 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*/
/*
**********************************************
24、***********************************************************
* EVENT CONTROL BLOCK
*********************************************************************************************************
*/
#if (OS_EVENT_EN > 0) && (OS_MAX_EVENTS > 0)
typedef struct {
INT8U OSEventType; /* Type of event con
25、trol block (see OS_EVENT_TYPE_???) */
//事件控制塊類型（見OS_EVENT_TYPE）
INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
//事件群體響應(yīng)去等待任務(wù)事件發(fā)生
INT16U OSEventCnt; /* Semaphore Count (not used if other EVENT type) */
//信號(hào)量，在其它事件中不用
void *OSEventPtr; /* Pointer to message
26、 or queue structure */
//消息或者隊(duì)列結(jié)構(gòu)指針
INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
//任務(wù)列表等待事件發(fā)生
} OS_EVENT;
#endif
/*
*********************************************************************************************************
* EVENT FLAGS CONTROL BLOCK
27、
*********************************************************************************************************
*/
#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 *OSFlagWai
28、tList; /* 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
29、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 */
/* O
30、S_FLAG_WAIT_OR */
/* OS_FLAG_WAIT_ANY */
} OS_FLAG_NODE;
#endif
/*
*********************************************************************************************************
* MESSAGE MAILBOX DATA
***********************************************************************************************
31、**********
*/
#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
32、/*
*********************************************************************************************************
* MEMORY PARTITION DATA STRUCTURES
*********************************************************************************************************
*/
#if (OS_MEM_EN > 0) && (OS_MAX_MEM_PART >
33、 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
34、 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
35、 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*/
/*
*********************************
36、************************************************************************
* MUTUAL EXCLUSION SEMAPHORE DATA
*********************************************************************************************************
*/
#if OS_MUTEX_EN > 0
typedef struct {
INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /*
37、 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 owners task priority or 0xFF if no owner */
INT8U OSMutexPIP; /* Priority Inheri
38、tance Priority or 0xFF if no owner */
} OS_MUTEX_DATA;
#endif
/*
*********************************************************************************************************
* MESSAGE QUEUE DATA
*****************************************************************************************************
39、****
*/
#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 w
40、here 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 *OSM
41、sg; /* 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 t
42、asks waiting for event to occur */
} OS_Q_DATA;
#endif
/*
*********************************************************************************************************
* SEMAPHORE DATA
*********************************************************************************************************
*/
43、#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
/*
****************************
44、*****************************************************************************
* TASK STACK DATA
*********************************************************************************************************
*/
#if OS_TASK_CREATE_EXT_EN > 0
typedef struct {
INT32U OSFree; /* Number of free bytes o
45、n the stack */
INT32U OSUsed; /* Number of bytes used on the stack */
} OS_STK_DATA;
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* TASK CONTROL BLOCK
*********************************************************
46、************************************************
*/
typedef struct os_tcb {
OS_STK *OSTCBStkPtr; /* Pointer to current top of stack */
//OS_STK為unsigned int 指向當(dāng)前堆頂部的指針
#if OS_TASK_CREATE_EXT_EN > 0 // 使OS_TASK_CREATE_EXT中包含代碼
void *OSTCBExtPtr; /* Pointer to user definable data for TCB ex
47、tension */
//用戶定義用于TCB擴(kuò)展的數(shù)據(jù)指針
OS_STK *OSTCBStkBottom; /* Pointer to bottom of stack */
//堆底部指針
INT32U OSTCBStkSize; /* Size of task stack (in number of stack elements) */
//任務(wù)堆棧大小
INT16U OSTCBOpt; /* Task options as passed by OSTaskCreateExt() */
//由OSTaskCreateExt() 傳遞的任務(wù)選項(xiàng)
INT16U O
48、STCBId; /* Task ID (0..65535) */
//任務(wù)ID
#endif
struct os_tcb *OSTCBNext; /* Pointer to next TCB in the TCB list */
//在TCB列表中指向下一個(gè)TCB
struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the TCB list */
//指向前一個(gè)TCB
#if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0) || (OS_SEM_EN > 0) || (OS_MUTEX_EN > 0)
COSII中uCOSII.H源碼中文注釋版
