Subversion Repositories openrisc_me

/*

*********************************************************************************************************

*                                                uC/OS-II

*                                          The Real-Time Kernel

*

*                              (c) Copyright 1992-2009, Micrium, Weston, FL

*                                           All Rights Reserved

*

* File    : uCOS_II.H

* By      : Jean J. Labrosse

* Version : V2.91

*

* LICENSING TERMS:

* ---------------

*   uC/OS-II is provided in source form for FREE evaluation, for educational use or for peaceful research.

* If you plan on using  uC/OS-II  in a commercial product you need to contact Micriµm to properly license

* its use in your product. We provide ALL the source code for your convenience and to help you experience

* uC/OS-II.   The fact that the  source is provided does  NOT  mean that you can use it without  paying a

* licensing fee.

*********************************************************************************************************

*/

#ifndef   OS_uCOS_II_H

#define   OS_uCOS_II_H

#ifdef __cplusplus

extern "C" {

#endif

/*

*********************************************************************************************************

*                                          uC/OS-II VERSION NUMBER

*********************************************************************************************************

*/

#define  OS_VERSION                 291u                /* Version of uC/OS-II (Vx.yy mult. by 100)    */

/*

*********************************************************************************************************

*                                           INCLUDE HEADER FILES

*********************************************************************************************************

*/

#include <app_cfg.h>

#include <os_cfg.h>

#include <os_cpu.h>

/*

*********************************************************************************************************

*                                             MISCELLANEOUS

*********************************************************************************************************

*/

#ifdef   OS_GLOBALS

#define  OS_EXT

#else

#define  OS_EXT  extern

#endif

#ifndef  OS_FALSE

#define  OS_FALSE                       0u

#endif

#ifndef  OS_TRUE

#define  OS_TRUE                        1u

#endif

#define  OS_ASCII_NUL            (INT8U)0

#define  OS_PRIO_SELF                0xFFu              /* Indicate SELF priority                      */

#if OS_TASK_STAT_EN > 0u

#define  OS_N_SYS_TASKS                 2u              /* Number of system tasks                      */

#else

#define  OS_N_SYS_TASKS                 1u

#endif

#define  OS_TASK_STAT_PRIO  (OS_LOWEST_PRIO - 1u)       /* Statistic task priority                     */

#define  OS_TASK_IDLE_PRIO  (OS_LOWEST_PRIO)            /* IDLE      task priority                     */

#if OS_LOWEST_PRIO <= 63u

#define  OS_EVENT_TBL_SIZE ((OS_LOWEST_PRIO) / 8u + 1u) /* Size of event table                         */

#define  OS_RDY_TBL_SIZE   ((OS_LOWEST_PRIO) / 8u + 1u) /* Size of ready table                         */

#else

#define  OS_EVENT_TBL_SIZE ((OS_LOWEST_PRIO) / 16u + 1u)/* Size of event table                         */

#define  OS_RDY_TBL_SIZE   ((OS_LOWEST_PRIO) / 16u + 1u)/* Size of ready table                         */

#endif

#define  OS_TASK_IDLE_ID            65535u              /* ID numbers for Idle, Stat and Timer tasks   */

#define  OS_TASK_STAT_ID            65534u

#define  OS_TASK_TMR_ID             65533u

#define  OS_EVENT_EN           (((OS_Q_EN > 0u) && (OS_MAX_QS > 0u)) || (OS_MBOX_EN > 0u) || (OS_SEM_EN > 0u) || (OS_MUTEX_EN > 0u))

#define  OS_TCB_RESERVED        ((OS_TCB *)1)

/*$PAGE*/

/*

*********************************************************************************************************

*                              TASK STATUS (Bit definition for OSTCBStat)

*********************************************************************************************************

*/

#define  OS_STAT_RDY                 0x00u  /* Ready to run                                            */

#define  OS_STAT_SEM                 0x01u  /* Pending on semaphore                                    */

#define  OS_STAT_MBOX                0x02u  /* Pending on mailbox                                      */

#define  OS_STAT_Q                   0x04u  /* Pending on queue                                        */

#define  OS_STAT_SUSPEND             0x08u  /* Task is suspended                                       */

#define  OS_STAT_MUTEX               0x10u  /* Pending on mutual exclusion semaphore                   */

#define  OS_STAT_FLAG                0x20u  /* Pending on event flag group                             */

#define  OS_STAT_MULTI               0x80u  /* Pending on multiple events                              */

#define  OS_STAT_PEND_ANY         (OS_STAT_SEM | OS_STAT_MBOX | OS_STAT_Q | OS_STAT_MUTEX | OS_STAT_FLAG)

/*

*********************************************************************************************************

*                           TASK PEND STATUS (Status codes for OSTCBStatPend)

*********************************************************************************************************

*/

#define  OS_STAT_PEND_OK                0u  /* Pending status OK, not pending, or pending complete     */

#define  OS_STAT_PEND_TO                1u  /* Pending timed out                                       */

#define  OS_STAT_PEND_ABORT             2u  /* Pending aborted                                         */

/*

*********************************************************************************************************

*                                        OS_EVENT types

*********************************************************************************************************

*/

#define  OS_EVENT_TYPE_UNUSED           0u

#define  OS_EVENT_TYPE_MBOX             1u

#define  OS_EVENT_TYPE_Q                2u

#define  OS_EVENT_TYPE_SEM              3u

#define  OS_EVENT_TYPE_MUTEX            4u

#define  OS_EVENT_TYPE_FLAG             5u

#define  OS_TMR_TYPE                  100u  /* Used to identify Timers ...                             */

                                            /* ... (Must be different value than OS_EVENT_TYPE_xxx)    */

/*

*********************************************************************************************************

*                                         EVENT FLAGS

*********************************************************************************************************

*/

#define  OS_FLAG_WAIT_CLR_ALL           0u  /* Wait for ALL    the bits specified to be CLR (i.e. 0)   */

#define  OS_FLAG_WAIT_CLR_AND           0u

#define  OS_FLAG_WAIT_CLR_ANY           1u  /* Wait for ANY of the bits specified to be CLR (i.e. 0)   */

#define  OS_FLAG_WAIT_CLR_OR            1u

#define  OS_FLAG_WAIT_SET_ALL           2u  /* Wait for ALL    the bits specified to be SET (i.e. 1)   */

#define  OS_FLAG_WAIT_SET_AND           2u

#define  OS_FLAG_WAIT_SET_ANY           3u  /* Wait for ANY of the bits specified to be SET (i.e. 1)   */

#define  OS_FLAG_WAIT_SET_OR            3u

#define  OS_FLAG_CONSUME             0x80u  /* Consume the flags if condition(s) satisfied             */

#define  OS_FLAG_CLR                    0u

#define  OS_FLAG_SET                    1u

/*

*********************************************************************************************************

*                                   Values for OSTickStepState

*

* Note(s): This feature is used by uC/OS-View.

*********************************************************************************************************

*/

#if OS_TICK_STEP_EN > 0u

#define  OS_TICK_STEP_DIS               0u  /* Stepping is disabled, tick runs as mormal               */

#define  OS_TICK_STEP_WAIT              1u  /* Waiting for uC/OS-View to set OSTickStepState to _ONCE  */

#define  OS_TICK_STEP_ONCE              2u  /* Process tick once and wait for next cmd from uC/OS-View */

#endif

/*

*********************************************************************************************************

*       Possible values for 'opt' argument of OSSemDel(), OSMboxDel(), OSQDel() and OSMutexDel()

*********************************************************************************************************

*/

#define  OS_DEL_NO_PEND                 0u

#define  OS_DEL_ALWAYS                  1u

/*

*********************************************************************************************************

*                                        OS???Pend() OPTIONS

*

* These #defines are used to establish the options for OS???PendAbort().

*********************************************************************************************************

*/

#define  OS_PEND_OPT_NONE               0u  /* NO option selected                                      */

#define  OS_PEND_OPT_BROADCAST          1u  /* Broadcast action to ALL tasks waiting                   */

/*

*********************************************************************************************************

*                                     OS???PostOpt() OPTIONS

*

* These #defines are used to establish the options for OSMboxPostOpt() and OSQPostOpt().

*********************************************************************************************************

*/

#define  OS_POST_OPT_NONE            0x00u  /* NO option selected                                      */

#define  OS_POST_OPT_BROADCAST       0x01u  /* Broadcast message to ALL tasks waiting                  */

#define  OS_POST_OPT_FRONT           0x02u  /* Post to highest priority task waiting                   */

#define  OS_POST_OPT_NO_SCHED        0x04u  /* Do not call the scheduler if this option is selected    */

/*

*********************************************************************************************************

*                                 TASK OPTIONS (see OSTaskCreateExt())

*********************************************************************************************************

*/

#define  OS_TASK_OPT_NONE          0x0000u  /* NO option selected                                      */

#define  OS_TASK_OPT_STK_CHK       0x0001u  /* Enable stack checking for the task                      */

#define  OS_TASK_OPT_STK_CLR       0x0002u  /* Clear the stack when the task is create                 */

#define  OS_TASK_OPT_SAVE_FP       0x0004u  /* Save the contents of any floating-point registers       */

/*

*********************************************************************************************************

*                            TIMER OPTIONS (see OSTmrStart() and OSTmrStop())

*********************************************************************************************************

*/

#define  OS_TMR_OPT_NONE                0u  /* No option selected                                      */

#define  OS_TMR_OPT_ONE_SHOT            1u  /* Timer will not automatically restart when it expires    */

#define  OS_TMR_OPT_PERIODIC            2u  /* Timer will     automatically restart when it expires    */

#define  OS_TMR_OPT_CALLBACK            3u  /* OSTmrStop() option to call 'callback' w/ timer arg.     */

#define  OS_TMR_OPT_CALLBACK_ARG        4u  /* OSTmrStop() option to call 'callback' w/ new   arg.     */

/*

*********************************************************************************************************

*                                            TIMER STATES

*********************************************************************************************************

*/

#define  OS_TMR_STATE_UNUSED            0u

#define  OS_TMR_STATE_STOPPED           1u

#define  OS_TMR_STATE_COMPLETED         2u

#define  OS_TMR_STATE_RUNNING           3u

/*

*********************************************************************************************************

*                                             ERROR CODES

*********************************************************************************************************

*/

#define OS_ERR_NONE                     0u

#define OS_ERR_EVENT_TYPE               1u

#define OS_ERR_PEND_ISR                 2u

#define OS_ERR_POST_NULL_PTR            3u

#define OS_ERR_PEVENT_NULL              4u

#define OS_ERR_POST_ISR                 5u

#define OS_ERR_QUERY_ISR                6u

#define OS_ERR_INVALID_OPT              7u

#define OS_ERR_ID_INVALID               8u

#define OS_ERR_PDATA_NULL               9u

#define OS_ERR_TIMEOUT                 10u

#define OS_ERR_EVENT_NAME_TOO_LONG     11u

#define OS_ERR_PNAME_NULL              12u

#define OS_ERR_PEND_LOCKED             13u

#define OS_ERR_PEND_ABORT              14u

#define OS_ERR_DEL_ISR                 15u

#define OS_ERR_CREATE_ISR              16u

#define OS_ERR_NAME_GET_ISR            17u

#define OS_ERR_NAME_SET_ISR            18u

#define OS_ERR_ILLEGAL_CREATE_RUN_TIME 19u

#define OS_ERR_MBOX_FULL               20u

#define OS_ERR_Q_FULL                  30u

#define OS_ERR_Q_EMPTY                 31u

#define OS_ERR_PRIO_EXIST              40u

#define OS_ERR_PRIO                    41u

#define OS_ERR_PRIO_INVALID            42u

#define OS_ERR_SCHED_LOCKED            50u

#define OS_ERR_SEM_OVF                 51u

#define OS_ERR_TASK_CREATE_ISR         60u

#define OS_ERR_TASK_DEL                61u

#define OS_ERR_TASK_DEL_IDLE           62u

#define OS_ERR_TASK_DEL_REQ            63u

#define OS_ERR_TASK_DEL_ISR            64u

#define OS_ERR_TASK_NAME_TOO_LONG      65u

#define OS_ERR_TASK_NO_MORE_TCB        66u

#define OS_ERR_TASK_NOT_EXIST          67u

#define OS_ERR_TASK_NOT_SUSPENDED      68u

#define OS_ERR_TASK_OPT                69u

#define OS_ERR_TASK_RESUME_PRIO        70u

#define OS_ERR_TASK_SUSPEND_IDLE       71u

#define OS_ERR_TASK_SUSPEND_PRIO       72u

#define OS_ERR_TASK_WAITING            73u

#define OS_ERR_TIME_NOT_DLY            80u

#define OS_ERR_TIME_INVALID_MINUTES    81u

#define OS_ERR_TIME_INVALID_SECONDS    82u

#define OS_ERR_TIME_INVALID_MS         83u

#define OS_ERR_TIME_ZERO_DLY           84u

#define OS_ERR_TIME_DLY_ISR            85u

#define OS_ERR_MEM_INVALID_PART        90u

#define OS_ERR_MEM_INVALID_BLKS        91u

#define OS_ERR_MEM_INVALID_SIZE        92u

#define OS_ERR_MEM_NO_FREE_BLKS        93u

#define OS_ERR_MEM_FULL                94u

#define OS_ERR_MEM_INVALID_PBLK        95u

#define OS_ERR_MEM_INVALID_PMEM        96u

#define OS_ERR_MEM_INVALID_PDATA       97u

#define OS_ERR_MEM_INVALID_ADDR        98u

#define OS_ERR_MEM_NAME_TOO_LONG       99u

#define OS_ERR_NOT_MUTEX_OWNER        100u

#define OS_ERR_FLAG_INVALID_PGRP      110u

#define OS_ERR_FLAG_WAIT_TYPE         111u

#define OS_ERR_FLAG_NOT_RDY           112u

#define OS_ERR_FLAG_INVALID_OPT       113u

#define OS_ERR_FLAG_GRP_DEPLETED      114u

#define OS_ERR_FLAG_NAME_TOO_LONG     115u

#define OS_ERR_PIP_LOWER              120u

#define OS_ERR_TMR_INVALID_DLY        130u

#define OS_ERR_TMR_INVALID_PERIOD     131u

#define OS_ERR_TMR_INVALID_OPT        132u

#define OS_ERR_TMR_INVALID_NAME       133u

#define OS_ERR_TMR_NON_AVAIL          134u

#define OS_ERR_TMR_INACTIVE           135u

#define OS_ERR_TMR_INVALID_DEST       136u

#define OS_ERR_TMR_INVALID_TYPE       137u

#define OS_ERR_TMR_INVALID            138u

#define OS_ERR_TMR_ISR                139u

#define OS_ERR_TMR_NAME_TOO_LONG      140u

#define OS_ERR_TMR_INVALID_STATE      141u

#define OS_ERR_TMR_STOPPED            142u

#define OS_ERR_TMR_NO_CALLBACK        143u

/*$PAGE*/

/*

*********************************************************************************************************

*                                          EVENT CONTROL BLOCK

*********************************************************************************************************

*/

#if OS_LOWEST_PRIO <= 63u

typedef  INT8U    OS_PRIO;

#else

typedef  INT16U   OS_PRIO;

#endif

#if (OS_EVENT_EN) && (OS_MAX_EVENTS > 0u)

typedef struct os_event {

    INT8U    OSEventType;                    /* Type of event control block (see OS_EVENT_TYPE_xxxx)    */

    void    *OSEventPtr;                     /* Pointer to message or queue structure                   */

    INT16U   OSEventCnt;                     /* Semaphore Count (not used if other EVENT type)          */

    OS_PRIO  OSEventGrp;                     /* Group corresponding to tasks waiting for event to occur */

    OS_PRIO  OSEventTbl[OS_EVENT_TBL_SIZE];  /* List of tasks waiting for event to occur                */

#if OS_EVENT_NAME_EN > 0u

    INT8U   *OSEventName;

#endif

} OS_EVENT;

#endif

/*

*********************************************************************************************************

*                                       EVENT FLAGS CONTROL BLOCK

*********************************************************************************************************

*/

#if (OS_FLAG_EN > 0u) && (OS_MAX_FLAGS > 0u)

#if OS_FLAGS_NBITS == 8u                    /* Determine the size of OS_FLAGS (8, 16 or 32 bits)       */

typedef  INT8U    OS_FLAGS;

#endif

#if OS_FLAGS_NBITS == 16u

typedef  INT16U   OS_FLAGS;

#endif

#if OS_FLAGS_NBITS == 32u

typedef  INT32U   OS_FLAGS;

#endif

typedef struct os_flag_grp {                /* 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                                   */

#if OS_FLAG_NAME_EN > 0u

    INT8U        *OSFlagName;

#endif

} OS_FLAG_GRP;

typedef struct os_flag_node {               /* 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

/*$PAGE*/

/*

*********************************************************************************************************

*                                          MESSAGE MAILBOX DATA

*********************************************************************************************************

*/

#if OS_MBOX_EN > 0u

typedef struct os_mbox_data {

    void   *OSMsg;                         /* Pointer to message in mailbox                            */

    OS_PRIO OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur                 */

    OS_PRIO OSEventGrp;                    /* Group corresponding to tasks waiting for event to occur  */

} OS_MBOX_DATA;

#endif

/*

*********************************************************************************************************

*                                     MEMORY PARTITION DATA STRUCTURES

*********************************************************************************************************

*/

#if (OS_MEM_EN > 0u) && (OS_MAX_MEM_PART > 0u)

typedef struct os_mem {                   /* 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       */

#if OS_MEM_NAME_EN > 0u

    INT8U  *OSMemName;                    /* Memory partition name                                     */

#endif

} OS_MEM;

typedef struct os_mem_data {

    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 > 0u

typedef struct os_mutex_data {

    OS_PRIO OSEventTbl[OS_EVENT_TBL_SIZE];  /* List of tasks waiting for event to occur                */

    OS_PRIO OSEventGrp;                     /* Group corresponding to tasks waiting for event to occur */

    BOOLEAN OSValue;                        /* Mutex value (OS_FALSE = used, OS_TRUE = 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 > 0u

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 os_q_data {

    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                                       */

    OS_PRIO        OSEventTbl[OS_EVENT_TBL_SIZE];  /* List of tasks waiting for event to occur         */

    OS_PRIO        OSEventGrp;          /* Group corresponding to tasks waiting for event to occur     */

} OS_Q_DATA;

#endif

/*

*********************************************************************************************************

*                                           SEMAPHORE DATA

*********************************************************************************************************

*/

#if OS_SEM_EN > 0u

typedef struct os_sem_data {

    INT16U  OSCnt;                          /* Semaphore count                                         */

    OS_PRIO OSEventTbl[OS_EVENT_TBL_SIZE];  /* List of tasks waiting for event to occur                */

    OS_PRIO OSEventGrp;                     /* Group corresponding to tasks waiting for event to occur */

} OS_SEM_DATA;

#endif

/*

*********************************************************************************************************

*                                            TASK STACK DATA

*********************************************************************************************************

*/

#if OS_TASK_CREATE_EXT_EN > 0u

typedef struct os_stk_data {

    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 > 0u

    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 number of stack elements)        */

    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_EVENT_EN)

    OS_EVENT        *OSTCBEventPtr;         /* Pointer to          event control block                 */

#endif

#if (OS_EVENT_EN) && (OS_EVENT_MULTI_EN > 0u)

    OS_EVENT       **OSTCBEventMultiPtr;    /* Pointer to multiple event control blocks                */

#endif

#if ((OS_Q_EN > 0u) && (OS_MAX_QS > 0u)) || (OS_MBOX_EN > 0u)

    void            *OSTCBMsg;              /* Message received from OSMboxPost() or OSQPost()         */

#endif

#if (OS_FLAG_EN > 0u) && (OS_MAX_FLAGS > 0u)

#if OS_TASK_DEL_EN > 0u

    OS_FLAG_NODE    *OSTCBFlagNode;         /* Pointer to event flag node                              */

#endif

    OS_FLAGS         OSTCBFlagsRdy;         /* Event flags that made task ready to run                 */

#endif

    INT32U           OSTCBDly;              /* Nbr ticks to delay task or, timeout waiting for event   */

    INT8U            OSTCBStat;             /* Task      status                                        */

    INT8U            OSTCBStatPend;         /* Task PEND status                                        */

    INT8U            OSTCBPrio;             /* Task priority (0 == highest)                            */

    INT8U            OSTCBX;                /* Bit position in group  corresponding to task priority   */

    INT8U            OSTCBY;                /* Index into ready table corresponding to task priority   */

    OS_PRIO          OSTCBBitX;             /* Bit mask to access bit position in ready table          */

    OS_PRIO          OSTCBBitY;             /* Bit mask to access bit position in ready group          */

#if OS_TASK_DEL_EN > 0u

    INT8U            OSTCBDelReq;           /* Indicates whether a task needs to delete itself         */

#endif

#if OS_TASK_PROFILE_EN > 0u

    INT32U           OSTCBCtxSwCtr;         /* Number of time the task was switched in                 */

    INT32U           OSTCBCyclesTot;        /* Total number of clock cycles the task has been running  */

    INT32U           OSTCBCyclesStart;      /* Snapshot of cycle counter at start of task resumption   */

    OS_STK          *OSTCBStkBase;          /* Pointer to the beginning of the task stack              */

    INT32U           OSTCBStkUsed;          /* Number of bytes used from the stack                     */

#endif

#if OS_TASK_NAME_EN > 0u

    INT8U           *OSTCBTaskName;

#endif

#if OS_TASK_REG_TBL_SIZE > 0u

    INT32U           OSTCBRegTbl[OS_TASK_REG_TBL_SIZE];

#endif

} OS_TCB;

/*$PAGE*/

/*

************************************************************************************************************************

*                                                   TIMER DATA TYPES

************************************************************************************************************************

*/

#if OS_TMR_EN > 0u

typedef  void (*OS_TMR_CALLBACK)(void *ptmr, void *parg);

typedef  struct  os_tmr {

    INT8U            OSTmrType;                       /* Should be set to OS_TMR_TYPE                                  */

    OS_TMR_CALLBACK  OSTmrCallback;                   /* Function to call when timer expires                           */

    void            *OSTmrCallbackArg;                /* Argument to pass to function when timer expires               */

    void            *OSTmrNext;                       /* Double link list pointers                                     */

    void            *OSTmrPrev;

    INT32U           OSTmrMatch;                      /* Timer expires when OSTmrTime == OSTmrMatch                    */

    INT32U           OSTmrDly;                        /* Delay time before periodic update starts                      */

    INT32U           OSTmrPeriod;                     /* Period to repeat timer                                        */

#if OS_TMR_CFG_NAME_EN > 0u

    INT8U           *OSTmrName;                       /* Name to give the timer                                        */

#endif

    INT8U            OSTmrOpt;                        /* Options (see OS_TMR_OPT_xxx)                                  */

    INT8U            OSTmrState;                      /* Indicates the state of the timer:                             */

                                                      /*     OS_TMR_STATE_UNUSED                                       */

                                                      /*     OS_TMR_STATE_RUNNING                                      */

                                                      /*     OS_TMR_STATE_STOPPED                                      */

} OS_TMR;

typedef  struct  os_tmr_wheel {

    OS_TMR          *OSTmrFirst;                      /* Pointer to first timer in linked list                         */

    INT16U           OSTmrEntries;

} OS_TMR_WHEEL;

#endif

/*$PAGE*/

/*

*********************************************************************************************************

*                                            GLOBAL VARIABLES

*********************************************************************************************************

*/

OS_EXT  INT32U            OSCtxSwCtr;               /* Counter of number of context switches           */

#if (OS_EVENT_EN) && (OS_MAX_EVENTS > 0u)

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_FLAG_EN > 0u) && (OS_MAX_FLAGS > 0u)

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 > 0u

OS_EXT  INT8U             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             OSLockNesting;            /* Multitasking lock nesting level                 */

OS_EXT  INT8U             OSPrioCur;                /* Priority of current task                        */

OS_EXT  INT8U             OSPrioHighRdy;            /* Priority of highest priority task               */

OS_EXT  OS_PRIO           OSRdyGrp;                        /* Ready list group                         */

OS_EXT  OS_PRIO           OSRdyTbl[OS_RDY_TBL_SIZE];       /* Table of tasks which are ready to run    */

OS_EXT  BOOLEAN           OSRunning;                       /* Flag indicating that kernel is running   */

OS_EXT  INT8U             OSTaskCtr;                       /* Number of tasks created                  */

OS_EXT  volatile  INT32U  OSIdleCtr;                                 /* Idle counter                   */

#ifdef OS_SAFETY_CRITICAL_IEC61508

OS_EXT  BOOLEAN           OSSafetyCriticalStartFlag;

#endif

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 + 1u];    /* Table of pointers to created TCBs   */

OS_EXT  OS_TCB            OSTCBTbl[OS_MAX_TASKS + OS_N_SYS_TASKS];   /* Table of TCBs                  */

#if OS_TICK_STEP_EN > 0u

OS_EXT  INT8U             OSTickStepState;          /* Indicates the state of the tick step feature    */

#endif

#if (OS_MEM_EN > 0u) && (OS_MAX_MEM_PART > 0u)

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 > 0u) && (OS_MAX_QS > 0u)

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 > 0u

OS_EXT  volatile  INT32U  OSTime;                   /* Current value of system time (in ticks)         */

#endif

#if OS_TMR_EN > 0u

OS_EXT  INT16U            OSTmrFree;                /* Number of free entries in the timer pool        */

OS_EXT  INT16U            OSTmrUsed;                /* Number of timers used                           */

OS_EXT  INT32U            OSTmrTime;                /* Current timer time                              */

OS_EXT  OS_EVENT         *OSTmrSem;                 /* Sem. used to gain exclusive access to timers    */

OS_EXT  OS_EVENT         *OSTmrSemSignal;           /* Sem. used to signal the update of timers        */

OS_EXT  OS_TMR            OSTmrTbl[OS_TMR_CFG_MAX]; /* Table containing pool of timers                 */

OS_EXT  OS_TMR           *OSTmrFreeList;            /* Pointer to free list of timers                  */

OS_EXT  OS_STK            OSTmrTaskStk[OS_TASK_TMR_STK_SIZE];

OS_EXT  OS_TMR_WHEEL      OSTmrWheelTbl[OS_TMR_CFG_WHEEL_SIZE];

#endif

extern  INT8U   const     OSUnMapTbl[256];          /* Priority->Index    lookup table                 */

 #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

/*

*********************************************************************************************************

*                                            MISCELLANEOUS

*********************************************************************************************************

*/

#if (OS_EVENT_EN)

#if (OS_EVENT_NAME_EN > 0u)

INT8U         OSEventNameGet          (OS_EVENT        *pevent,

                                       INT8U          **pname,

                                       INT8U           *perr);

void          OSEventNameSet          (OS_EVENT        *pevent,

                                       INT8U           *pname,

                                       INT8U           *perr);

#endif

#if (OS_EVENT_MULTI_EN > 0u)

INT16U        OSEventPendMulti        (OS_EVENT       **pevents_pend,

                                       OS_EVENT       **pevents_rdy,

                                       void           **pmsgs_rdy,

                                       INT32U           timeout,

                                       INT8U           *perr);

#endif

#endif

/*

*********************************************************************************************************

*                                         EVENT FLAGS MANAGEMENT

*********************************************************************************************************

*/

#if (OS_FLAG_EN > 0u) && (OS_MAX_FLAGS > 0u)

#if OS_FLAG_ACCEPT_EN > 0u

OS_FLAGS      OSFlagAccept            (OS_FLAG_GRP     *pgrp,

                                       OS_FLAGS         flags,

                                       INT8U            wait_type,

                                       INT8U           *perr);

#endif