/*****************************************************************************
Funtion : osMuxInit,
Description : Initializes the mutex,
Input : None
Output : None
Return : LOS_OK on success ,or error code on failure
*****************************************************************************/
LITE_OS_SEC_TEXT_INIT UINT32 osMuxInit(VOID)
{
MUX_CB_S *pstMuxNode;
UINT32 uwIndex;
LOS_ListInit(&g_stUnusedMuxList);
if (LOSCFG_BASE_IPC_MUX_LIMIT == 0) /*lint !e506*/
{
return LOS_ERRNO_MUX_MAXNUM_ZERO;
}
g_pstAllMux = (MUX_CB_S *)LOS_MemAlloc(m_aucSysMem0, (LOSCFG_BASE_IPC_MUX_LIMIT * sizeof(MUX_CB_S)));
if (NULL == g_pstAllMux)
{
return LOS_ERRNO_MUX_NO_MEMORY;
}
for (uwIndex = 0; uwIndex < LOSCFG_BASE_IPC_MUX_LIMIT; uwIndex++)
{
pstMuxNode = ((MUX_CB_S *)g_pstAllMux) + uwIndex;
pstMuxNode->ucMuxID = uwIndex;
pstMuxNode->ucMuxStat = OS_MUX_UNUSED;
LOS_ListTailInsert(&g_stUnusedMuxList, &pstMuxNode->stMuxList);
}
return LOS_OK;
}
/*****************************************************************************
Function : LOS_MemInit
Description : Initialize Dynamic Memory pool
Input : pPool --- Pointer to memory pool
uwSize --- Size of memory in bytes to allocate
Output : None
Return : LOS_OK - Ok, OS_ERROR - Error
*****************************************************************************/
LITE_OS_SEC_TEXT_INIT UINT32 LOS_MemInit(VOID *pPool, UINT32 uwSize)
{
LOS_MEM_DYN_NODE *pstNewNode = (LOS_MEM_DYN_NODE *)NULL;
LOS_MEM_DYN_NODE *pstEndNode = (LOS_MEM_DYN_NODE *)NULL;
LOS_MEM_POOL_INFO *pstPoolInfo = (LOS_MEM_POOL_INFO *)NULL;
UINTPTR uvIntSave;
LOS_DL_LIST *pstListHead = (LOS_DL_LIST *)NULL;
if ((pPool == NULL) || (uwSize < (OS_MEM_MIN_POOL_SIZE)))
{
return OS_ERROR;
}
uvIntSave = LOS_IntLock();
pstPoolInfo = (LOS_MEM_POOL_INFO *)pPool;
pstPoolInfo->pPoolAddr = pPool;
pstPoolInfo->uwPoolSize = uwSize;
LOS_DLnkInitMultiHead(OS_MEM_HEAD_ADDR(pPool));
pstNewNode = OS_MEM_FIRST_NODE(pPool);
pstNewNode->uwSizeAndFlag = ((uwSize - ((UINT32)pstNewNode - (UINT32)pPool)) - OS_MEM_NODE_HEAD_SIZE);
pstNewNode->pstPreNode = (LOS_MEM_DYN_NODE *)NULL;
pstListHead = OS_MEM_HEAD(pPool, pstNewNode->uwSizeAndFlag);
if (NULL == pstListHead)
{
PRINT_ERR("%s %d\n", __FUNCTION__, __LINE__);
LOS_IntRestore(uvIntSave);
return OS_ERROR;
}
LOS_ListTailInsert(pstListHead,&(pstNewNode->stFreeNodeInfo));
pstEndNode = (LOS_MEM_DYN_NODE *)OS_MEM_END_NODE(pPool, uwSize);
(VOID)memset(pstEndNode, 0 ,sizeof(*pstEndNode));
pstEndNode->pstPreNode = pstNewNode;
pstEndNode->uwSizeAndFlag = OS_MEM_NODE_HEAD_SIZE;
OS_MEM_NODE_SET_USED_FLAG(pstEndNode->uwSizeAndFlag);
osMemSetMagicNumAndTaskid(pstEndNode);
LOS_IntRestore(uvIntSave);
return LOS_OK;
}