Embedded 版 (精华区)
发信人: Zinux (Linux技工), 信区: Embedded_system
标 题: ucos源码（header file)
发信站: 哈工大紫丁香 (2001年10月26日18:13:49 星期五), 站内信件
（本文转载自水木清华站精华区）
/*
************************************************************************
****
******************************
* uC/OS
* The Real-Time Kernel
* SYSTEM DECLARATIONS
*
* (c) Copyright 1992-1995, Jean J. Labrosse,
Plantati
on, FL
* All Rights Reserved
*
* V1.08
*
* File : UCOS.H
* By : Jean J. Labrosse
* By : Jean J. Labrosse
************************************************************************
****
******************************
*/
/*
************************************************************************
****
******************************
* uC/OS CONFIGURATION
************************************************************************
****
******************************
*/
#define OS_FAR far /* Define OS_FAR for the
processor (i
x86 CPUs) */
#define OS_STK_TYPE UBYTE /* Data type used for stack
#define uCOS 0x80 /* Interrupt vector assigned to
uC/OS
#define OS_MAX_TASKS 63 /* Maximum number of tasks in
your ap
pliccation */
#define OS_MAX_EVENTS 20 /* Maximum number of event
control bl
ockss in your application */
#define OS_MAX_QS 5 /* Maximum number of queue
control bl
ockss in your application */
#define OS_IDLE_TASK_STK_SIZE 1024 /* Idle task stack size (BYTEs)
#define OS_IDLE_TASK_STK_SIZE 1024 /* Idle task stack size (BYTEs)
#define OS_IDLE_TASK_STK_TOP 1024 /* Index into idle task top of
stack
#define OS_TASK_CHANGE_PRIO_EN 1 /* Include code for
OSTaskChangePrio(
)
#define OS_TASK_DEL_EN 1 /* Include code for OSTaskDel()
#define OS_SEM_EN 1 /* Include code for SEMAPHORES
#define OS_MBOX_EN 1 /* Include code for MAILBOXES
#define OS_Q_EN 1 /* Include code for QUEUES
#define OS_TASK_SUSPEND_EN 1 /* Include code for
OSTaskSuspend() a
nd OOSTaskResume() */
/*$PAGE*/
/*
************************************************************************
****
******************************
* MISCELLANEOUS
************************************************************************
****
******************************
*/
#ifdef OS_GLOBALS
#define OS_EXT
#else
#define OS_EXT extern
#endif
#endif
#define OS_PRIO_SELF 0xFF /* Indicate SELF priority
/*
************************************************************************
****
******************************
* uC/OS ERROR CODES
************************************************************************
****
******************************
*/
#define OS_NO_ERR 0
#define OS_TIMEOUT 10
#define OS_TASK_NOT_EXIST 11
#define OS_MBOX_FULL 20
#define OS_MBOX_MSG_NOT_AVAIL 21
#define OS_Q_FULL 30
#define OS_Q_MSG_NOT_AVAIL 31
#define OS_PRIO_EXIST 40
#define OS_PRIO_ERR 41
#define OS_PRIO_INVALID 42
#define OS_SEM_ERR 50
#define OS_SEM_OVF 51
#define OS_SEM_NOT_AVAIL 52
#define OS_TASK_DEL_ERR 60
#define OS_TASK_DEL_ERR 60
#define OS_TASK_DEL_IDLE 61
#define OS_TASK_DEL_REQ 62
#define OS_NO_MORE_TCB 70
#define OS_TIME_NOT_DLY 80
#define OS_TASK_SUSPEND_PRIO 90
#define OS_TASK_SUSPEND_IDLE 91
#define OS_TASK_RESUME_PRIO 100
#define OS_TASK_NOT_SUSPENDED 101
/*$PAGE*/
/*
************************************************************************
****
******************************
* EVENT CONTROL BLOCK
************************************************************************
****
******************************
*/
typedef struct os_event {
UBYTE OSEventGrp; /* Group corresponding to tasks
waiti
ng ffor event to occur */
UBYTE OSEventTbl[8]; /* List of tasks waiting for
event to
occcur */
UWORD OSEventCnt; /* Count of used when event is
a sema
UWORD OSEventCnt; /* Count of used when event is
a sema
phorre */
void *OSEventPtr; /* Pointer to message or queue
struct
ure */
} OS_EVENT;
/*
************************************************************************
****
******************************
* uC/OS TASK CONTROL BLOCK
************************************************************************
****
******************************
*/
typedef struct os_tcb {
void OS_FAR *OSTCBStkPtr; /* Pointer to current top of
stack
UBYTE OSTCBStat; /* Task status
UBYTE OSTCBPrio; /* Task priority (0 == highest,
63 ==
lowwest) */
UWORD OSTCBDly; /* Nbr ticks to delay task or,
timeou
t waaiting for event */
BOOLEAN OSTCBDelReq; /* Indicates whether a task needs
to
deleete itself */
UBYTE OSTCBX; /* Bit position in group
correspondi
ng tto task priority (0..7) */
ng tto task priority (0..7) */
UBYTE OSTCBY; /* Index into ready table
correspondi
ng tto task priority */
UBYTE OSTCBBitX; /* Bit mask to access bit
position in
reaady table */
UBYTE OSTCBBitY; /* Bit mask to access bit
position in
reaady group */
OS_EVENT *OSTCBEventPtr; /* Pointer to event control
block
void *OSTCBMsg; /* Message received from
OSMboxPost()
or OSQPost() */
struct os_tcb *OSTCBNext; /* Pointer to next TCB in the
TCB
lisst */
struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the
TCB
lisst */
} OS_TCB;
/*
************************************************************************
****
******************************
* QUEUE CONTROL BLOCK
************************************************************************
****
******************************
*/
typedef struct os_q {
typedef struct os_q {
struct os_q *OSQPtr; /* Link to next queue control
block i
n liist 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 */
UBYTE OSQSize; /* Size of queue (maximum
number of e
ntriies) */
UBYTE OSQEntries; /* Current number of entries in
the q
ueuee */
} OS_Q;
/*$PAGE*/
/*
************************************************************************
****
******************************
* uC/OS GLOBAL VARIABLES
************************************************************************
****
******************************
*/
/* SYSTEM VARIABLES
/* SYSTEM VARIABLES
OS_EXT UWORD OSCtxSwCtr; /* Counter of number of context
switc
hes */
OS_EXT ULONG OSIdleCtr; /* Idle counter
OS_EXT UBYTE OSIntNesting; /* Interrupt nesting level
OS_EXT BOOLEAN OSRunning; /* Flag indicating that kernel is
run
ningg */
OS_EXT OS_TCB *OSTCBCur; /* Pointer to currently running
TCB
OS_EXT OS_TCB *OSTCBHighRdy; /* Pointer to highest priority
TCB re
ady to run */
OS_EXT OS_TCB *OSTCBPrioTbl[64]; /* Table of pointers to all
created T
CBs */
/*
************************************************************************
****
******************************
* uC/OS FUNCTION PROTOTYPES
************************************************************************
****
******************************
*/
void OSInit(void);
void OSStart(void);
void OSStartHighRdy(void);
void OSSched(void);
void OSSched(void);
void OSSchedLock(void);
void OSSchedUnlock(void);
UBYTE OSTaskCreate(void (OS_FAR *task)(void *pd), void *pdata,
void *p
stk,, UBYTE prio);
UBYTE OSTaskDel(UBYTE prio);
UBYTE OSTaskDelReq(UBYTE prio);
UBYTE OSTaskChangePrio(UBYTE oldprio, UBYTE newprio);
UBYTE OSTaskSuspend(UBYTE prio);
UBYTE OSTaskResume(UBYTE prio);
UBYTE OSTCBInit(UBYTE prio, void OS_FAR *stk);
void OSIntEnter(void);
void OSIntExit(void);
void OSIntCtxSw(void);
void OS_FAR OSCtxSw(void);
void OS_FAR OSTickISR(void);
void OSTimeDly(UWORD ticks);
UBYTE OSTimeDlyResume(UBYTE prio);
void OSTimeTick(void);
void OSTimeSet(ULONG ticks);
ULONG OSTimeGet(void);
OS_EVENT *OSSemCreate(UWORD value);
UWORD OSSemAccept(OS_EVENT *pevent);
void OS_FAR OSTickISR(void);
UBYTE OSSemPost(OS_EVENT *pevent);
void OSSemPend(OS_EVENT *pevent, UWORD timeout, UBYTE *err);
OS_EVENT *OSMboxCreate(void *msg);
void *OSMboxAccept(OS_EVENT *pevent);
UBYTE OSMboxPost(OS_EVENT *pevent, void *msg);
void *OSMboxPend(OS_EVENT *pevent, UWORD timeout, UBYTE *err);
OS_EVENT *OSQCreate(void **start, UBYTE size);
void *OSQAccept(OS_EVENT *pevent);
UBYTE OSQPost(OS_EVENT *pevent, void *msg);
void *OSQPend(OS_EVENT *pevent, UWORD timeout, UBYTE *err)
--
puke!
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