?? ucos_ii.h
字號:
/*
*********************************************************************************************************
* MISCELLANEOUS
*********************************************************************************************************
*/
#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_PRIO_EXIST 40
#define OS_PRIO_ERR 41
#define OS_PRIO_INVALID 42
#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_TASK_OPT_ERR 130
/*$PAGE*/
/*
*********************************************************************************************************
* EVENT CONTROL BLOCK
*********************************************************************************************************
*/
#if (OS_MAX_EVENTS >= 2)
typedef struct {
void *OSEventPtr; /* Pointer to message or queue structure */
INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
INT16U OSEventCnt; /* Count of used when event is a semaphore */
INT8U OSEventType; /* OS_EVENT_TYPE_MBOX, OS_EVENT_TYPE_Q or OS_EVENT_TYPE_SEM */
INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
} OS_EVENT;
#endif
/*
*********************************************************************************************************
* TASK STACK DATA
*********************************************************************************************************
*/
#if OS_TASK_CREATE_EXT_EN
typedef struct {
INT32U OSFree; /* Number of free bytes on the stack */
INT32U OSUsed; /* Number of bytes used on the stack */
} OS_STK_DATA;
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* TASK CONTROL BLOCK
*********************************************************************************************************
*/
typedef struct os_tcb {
OS_STK *OSTCBStkPtr; /* Pointer to current top of stack */
struct os_tcb *OSTCBNext; /* Pointer to next TCB in the TCB list */
struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the TCB list */
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 */
} 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)
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* TASK MANAGEMENT
*********************************************************************************************************
*/
INT8U OSTaskCreate(void (*task)(void *pd), void *pdata, OS_STK *ptos, INT8U prio);
/*
*********************************************************************************************************
* TIME MANAGEMENT
*********************************************************************************************************
*/
void OSTimeDly(INT16U ticks);
void OSTimeTick(void);
/*
*********************************************************************************************************
* MISCELLANEOUS
*********************************************************************************************************
*/
void OSInit(void);
void OSIntExit(void);
void OSStart(void);
/*$PAGE*/
/*
*********************************************************************************************************
* INTERNAL FUNCTION PROTOTYPES
* (Your application MUST NOT call these functions)
*********************************************************************************************************
*/
void OSSched(void);
void OSTaskIdle(void *data);
INT8U OSTCBInit(INT8U prio, OS_STK *ptos, OS_STK *pbos, INT16U id, INT16U stk_size, void *pext, INT16U opt);
/*$PAGE*/
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
* (Target Specific Functions)
*********************************************************************************************************
*/
void OSCtxSw(void);
void OSIntCtxSw(void);
void OSStartHighRdy(void);
void OSTickISR(void);
void init164(void);
void write164(unsigned char x);?? 快捷鍵說明
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