/*
*********************************************************************************************************
*                                     MICRIUM BOARD SUPPORT SUPPORT
*
*                          (c) Copyright 2003-2013; Micrium, Inc.; Weston, FL
*
*               All rights reserved.  Protected by international copyright laws.
*               Knowledge of the source code may NOT be used to develop a similar product.
*               Please help us continue to provide the Embedded community with the finest
*               software available.  Your honesty is greatly appreciated.
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*
*                                    MICRIUM BOARD SUPPORT PACKAGE
*                                             OS LAYER
*
* Filename      : bsp_os.c
* Version       : V1.00
* Programmer(s) : FT
*                 EHS
*********************************************************************************************************
*/


/*
*********************************************************************************************************
*                                             INCLUDE FILES
*********************************************************************************************************
*/

#define  BSP_OS_MODULE
#include <bsp.h>
#include <bsp_os.h>

/*
*********************************************************************************************************
*                                      BSP_OS_SemCreate()
*
* Description : Creates a sempahore to lock/unlock
*
* Argument(s) : p_sem        Pointer to a BSP_OS_SEM structure
*
*               sem_val      Initial value of the semaphore.
*
*               p_sem_name   Pointer to the semaphore name.
*
* Return(s)   : DEF_OK        if the semaphore was created.
*               DEF_FAIL      if the sempahore could not be created.
*
* Caller(s)   : Application.
*
* Note(s)     : none.
*
*********************************************************************************************************
*/

CPU_BOOLEAN  BSP_OS_SemCreate (BSP_OS_SEM       *p_sem,
                               BSP_OS_SEM_VAL    sem_val,
                               CPU_CHAR         *p_sem_name)
{
    OS_EVENT    *p_event;

#if (OS_EVENT_NAME_EN > 0)
    CPU_INT08U  err;
#endif

    p_event = OSSemCreate(sem_val);

    if (p_event == (OS_EVENT *)0) {
        return (DEF_FAIL);
    }

    *p_sem = (BSP_OS_SEM)(p_event);

#if (OS_EVENT_NAME_EN > 0)
    OSEventNameSet((OS_EVENT *)p_event,
                   (INT8U    *)p_sem_name,
                   (INT8U    *)&err);
#endif


    return (DEF_OK);
}


/*
*********************************************************************************************************
*                                     BSP_OS_SemWait()
*
* Description : Wait on a semaphore to become available
*
* Argument(s) : p_sem        Pointer to the sempahore handler.
*
*               dly_ms       delay in miliseconds to wait on the semaphore
*
* Return(s)   : error code return     DEF_OK       if the semaphore was acquire
*                                     DEF_FAIL     if the sempahore could not be acquire
*
* Caller(s)   : Application.
*
* Note(s)     : none.
*********************************************************************************************************
*/

CPU_BOOLEAN  BSP_OS_SemWait (BSP_OS_SEM *p_sem,
                             CPU_INT32U  dly_ms)
{
    CPU_INT08U  err;
    CPU_INT32U  dly_ticks;


    dly_ticks  = ((dly_ms * DEF_TIME_NBR_mS_PER_SEC) / OS_TICKS_PER_SEC);

    OSSemPend((OS_EVENT   *)*p_sem,
              (CPU_INT32U  )dly_ticks,
              (CPU_INT08U *)&err);

    if (err != OS_ERR_NONE) {
       return (DEF_FAIL);
    }

    return (DEF_OK);
}

/*
*********************************************************************************************************
*                                      BSP_OS_SemCreate()
*
* Description : Post a semaphore
*
* Argument(s) : p_sem                 Pointer to the Semaphore handler.
*
* Return(s)   : error code return     DEF_OK     if the semaphore was posted.
*                                     DEF_FAIL   if the sempahore could not be posted.
*
* Caller(s)   : Application.
*
* Note(s)     : none.
*********************************************************************************************************
*/

CPU_BOOLEAN  BSP_OS_SemPost (BSP_OS_SEM * p_sem)
{
    CPU_INT08U  err;


    err = OSSemPost((OS_EVENT *)*p_sem);

    if (err != OS_ERR_NONE) {
        return (DEF_FAIL);
    }

    return (DEF_OK);
}


/*
*********************************************************************************************************
*********************************************************************************************************
**                                     uC/OS-II TIMER FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/

/*
*********************************************************************************************************
*                                    BSP_TimeDlyMs()
*
* Description : This function delay the exceution for specifi amount of miliseconds
*
* Argument(s) : dly_ms       Delay in miliseconds
*
* Return(s)   : none.
*
* Caller(s)   : Application
*
* Note(s)     : none.
*
*********************************************************************************************************
*/

void   BSP_OS_TimeDlyMs (CPU_INT32U  dly_ms)
{
    CPU_INT16U  os_ms;
    CPU_INT08U  os_sec;

    if (dly_ms > 20000) {                                       /* Limit delays to 20 seconds.                        */
        dly_ms = 20000;
    }

    os_sec = dly_ms / 1000;
    os_ms  = dly_ms % 1000;

    OSTimeDlyHMSM(0, 0, os_sec, os_ms);
}

/*
*********************************************************************************************************
*                                    BSP_TimeDlyMs()
*
* Description : This function delay the exceution for specifi amount of miliseconds
*
* Argument(s) : dly_ms       Delay in miliseconds
*
* Return(s)   : none.
*
* Caller(s)   : Application
*
* Note(s)     : none.
*
*********************************************************************************************************
*/

void   BSP_OS_TimeDly (CPU_INT32U  dly_tick)
{
    OSTimeDly(dly_tick);
}