os_cpu_c.c

ucos2.85移植LPC2104的接口和原代码

#define  OS_CPU_GLOBALS
#include "../ucos/ucos_ii.h"
#define OS_VIEW_MODULE 0

#if      OS_VIEW_MODULE > 0
#include <OS_VIEWc.H>
#include <OS_VIEW.H>
#endif

#define  ARM_USR_MODE   (0x00000010L)

#if OS_CPU_HOOKS_EN > 0 && OS_VERSION > 203
void  OSInitHookBegin (void)
{
}
#endif

#if OS_CPU_HOOKS_EN > 0 && OS_VERSION > 203
void  OSInitHookEnd (void)
{
#if OS_CPU_INT_DIS_MEAS_EN > 0
    OS_CPU_IntDisMeasInit();
#endif
}
#endif

#if OS_CPU_HOOKS_EN > 0 
void  OSTaskCreateHook (OS_TCB *ptcb)
{
#if OS_VIEW_MODULE > 0
    OSView_TaskCreateHook(ptcb);
#else
    (void)ptcb;                                                         
#endif
}
#endif


#if OS_CPU_HOOKS_EN > 0 
void  OSTaskDelHook (OS_TCB *ptcb)
{
    (void)ptcb;                                                    
}
#endif

#if OS_CPU_HOOKS_EN > 0 && OS_VERSION >= 251
void  OSTaskIdleHook (void)
{
}
#endif


#if OS_CPU_HOOKS_EN > 0 
void  OSTaskStatHook (void)
{
}
#endif

OS_STK *OSTaskStkInit (void (*task)(void *pd), void *p_arg, OS_STK *ptos, INT16U opt)
{
    OS_STK *stk;
    opt      = opt;                         
    stk      = ptos;                                                         
    *(stk)   = (OS_STK)task;                                             
    *(--stk) = (INT32U)0x14141414L;                                               
    *(--stk) = (INT32U)0x12121212L;         
    *(--stk) = (INT32U)0x11111111L;                                             
    *(--stk) = (INT32U)0x10101010L;                                   
    *(--stk) = (INT32U)0x09090909L;                                            
    *(--stk) = (INT32U)0x08080808L;                                                 
    *(--stk) = (INT32U)0x07070707L;                                                       
    *(--stk) = (INT32U)0x06060606L;                                              
    *(--stk) = (INT32U)0x05050505L;                                                 
    *(--stk) = (INT32U)0x04040404L;                                                     
    *(--stk) = (INT32U)0x03030303L;                                                        
    *(--stk) = (INT32U)0x02020202L;                                                        
    *(--stk) = (INT32U)0x01010101L;                                                   
    *(--stk) = (INT32U)p_arg;                                                       
    *(--stk) = (INT32U)ARM_USR_MODE;       
    return (stk);
}

#if (OS_CPU_HOOKS_EN > 0) && (OS_TASK_SW_HOOK_EN > 0)
void  OSTaskSwHook (void)
{
#if OS_VIEW_MODULE > 0
    OSView_TaskSwHook();
#endif
}
#endif

#if OS_CPU_HOOKS_EN > 0 && OS_VERSION > 203
void  OSTCBInitHook (OS_TCB *ptcb)
{
    (void)ptcb;                                                           
}
#endif


#if (OS_CPU_HOOKS_EN > 0) && (OS_TIME_TICK_HOOK_EN > 0)
void  OSTimeTickHook (void)
{
#if OS_VIEW_MODULE > 0
    OSView_TickHook();
#endif
}
#endif


#if OS_CPU_INT_DIS_MEAS_EN > 0
void  OS_CPU_IntDisMeasInit (void)
{
    OS_CPU_IntDisMeasNestingCtr = 0;
    OS_CPU_IntDisMeasCntsEnter  = 0;
    OS_CPU_IntDisMeasCntsExit   = 0;
    OS_CPU_IntDisMeasCntsMax    = 0;
    OS_CPU_IntDisMeasCntsDelta  = 0;
    OS_CPU_IntDisMeasCntsOvrhd  = 0;
    OS_CPU_IntDisMeasStart();                              
    OS_CPU_IntDisMeasStop();
    OS_CPU_IntDisMeasCntsOvrhd  = OS_CPU_IntDisMeasCntsDelta;
}

void  OS_CPU_IntDisMeasStart (void)
{
    OS_CPU_IntDisMeasNestingCtr++;
    if (OS_CPU_IntDisMeasNestingCtr == 1) {                 
        OS_CPU_IntDisMeasCntsEnter = OS_CPU_IntDisMeasTmrRd();
    }
}

void  OS_CPU_IntDisMeasStop (void)
{
    OS_CPU_IntDisMeasNestingCtr--;                                        
    if (OS_CPU_IntDisMeasNestingCtr == 0) {
        OS_CPU_IntDisMeasCntsExit  = OS_CPU_IntDisMeasTmrRd();
        OS_CPU_IntDisMeasCntsDelta = OS_CPU_IntDisMeasCntsExit - OS_CPU_IntDisMeasCntsEnter;
        if (OS_CPU_IntDisMeasCntsDelta > OS_CPU_IntDisMeasCntsOvrhd) {    
            OS_CPU_IntDisMeasCntsDelta -= OS_CPU_IntDisMeasCntsOvrhd;
        } else {
            OS_CPU_IntDisMeasCntsDelta  = OS_CPU_IntDisMeasCntsOvrhd;
        }
        if (OS_CPU_IntDisMeasCntsDelta > OS_CPU_IntDisMeasCntsMax) {                 
            OS_CPU_IntDisMeasCntsMax = OS_CPU_IntDisMeasCntsDelta;
        }
    }
}
#endif