/*****************************************************************************
Function : osTickStart
Description: Configure Tick Interrupt Start
Input : none
output : none
return : LOS_OK - Success , or LOS_ERRNO_TICK_CFG_INVALID - failed
*****************************************************************************/
LITE_OS_SEC_TEXT_INIT UINT32 osTickStart(VOID)
{
UINT32 uwRet;
if ((0 == OS_SYS_CLOCK)
|| (0 == LOSCFG_BASE_CORE_TICK_PER_SECOND)
|| (LOSCFG_BASE_CORE_TICK_PER_SECOND > OS_SYS_CLOCK))/*lint !e506*/
{
return LOS_ERRNO_TICK_CFG_INVALID;
}
#if (OS_HWI_WITH_ARG == YES)
osSetVector(SysTick_IRQn, (HWI_PROC_FUNC)osTickHandler, NULL);
#else
osSetVector(SysTick_IRQn, osTickHandler);
#endif
g_uwCyclesPerTick = OS_SYS_CLOCK / LOSCFG_BASE_CORE_TICK_PER_SECOND;
g_ullTickCount = 0;
uwRet = SysTick_Config(OS_SYS_CLOCK/LOSCFG_BASE_CORE_TICK_PER_SECOND);
if (uwRet == 1)
{
return LOS_ERRNO_TICK_PER_SEC_TOO_SMALL;
}
return LOS_OK;
}
/*****************************************************************************
Function : LOS_HwiCreate
Description : create hardware interrupt
Input : uwHwiNum --- hwi num to create
usHwiPrio --- priority of the hwi
usMode --- unused
pfnHandler --- hwi handler
uwArg --- param of the hwi handler
Output : None
Return : OS_SUCCESS on success or error code on failure
*****************************************************************************/
LITE_OS_SEC_TEXT_INIT UINT32 LOS_HwiCreate( HWI_HANDLE_T uwHwiNum,
HWI_PRIOR_T usHwiPrio,
HWI_MODE_T usMode,
HWI_PROC_FUNC pfnHandler,
HWI_ARG_T uwArg )
{
UINTPTR uvIntSave;
(void)usMode;
(void)uwArg;
if (NULL == pfnHandler)
{
return OS_ERRNO_HWI_PROC_FUNC_NULL;
}
if (uwHwiNum >= OS_M0PLUS_IRQ_VECTOR_CNT)
{
return OS_ERRNO_HWI_NUM_INVALID;
}
if (m_pstHwiForm[uwHwiNum + OS_M0PLUS_SYS_VECTOR_CNT] != osHwiDefaultHandler)
{
return OS_ERRNO_HWI_ALREADY_CREATED;
}
if (usHwiPrio > OS_HWI_PRIO_LOWEST)
{
return OS_ERRNO_HWI_PRIO_INVALID;
}
uvIntSave = LOS_IntLock();
osSetVector(uwHwiNum, pfnHandler);
LosAdapIrpEnable(uwHwiNum, usHwiPrio);
LOS_IntRestore(uvIntSave);
return LOS_OK;
}