struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
{
	uint tmp_aid;
	s32	index;
	struct list_head *phash_list;
	struct sta_info	*psta;
	struct  __queue *pfree_sta_queue;
	struct recv_reorder_ctrl *preorder_ctrl;
	int i = 0;
	u16  wRxSeqInitialValue = 0xffff;
	unsigned long flags;

	pfree_sta_queue = &pstapriv->free_sta_queue;
	spin_lock_irqsave(&(pfree_sta_queue->lock), flags);
	if (_queue_empty(pfree_sta_queue) == true)
		psta = NULL;
	else {
		psta = LIST_CONTAINOR(get_next(&pfree_sta_queue->queue),
				      struct sta_info, list);
		list_delete(&(psta->list));
		tmp_aid = psta->aid;
		_init_stainfo(psta);
		memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
		index = wifi_mac_hash(hwaddr);
		if (index >= NUM_STA) {
			psta = NULL;
			goto exit;
		}
		phash_list = &(pstapriv->sta_hash[index]);
		list_insert_tail(&psta->hash_list, phash_list);
		pstapriv->asoc_sta_count++ ;

/*                                                                         
                                                                                
                                                                         
                                                   
 */
		for (i = 0; i < 16; i++)
			memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i],
				&wRxSeqInitialValue, 2);
		/*                                         */
		for (i = 0; i < 16 ; i++) {
			preorder_ctrl = &psta->recvreorder_ctrl[i];
			preorder_ctrl->padapter = pstapriv->padapter;
			preorder_ctrl->indicate_seq = 0xffff;
			preorder_ctrl->wend_b = 0xffff;
			preorder_ctrl->wsize_b = 64;
			_init_queue(&preorder_ctrl->pending_recvframe_queue);
			r8712_init_recv_timer(preorder_ctrl);
		}
	}
exit:
	spin_unlock_irqrestore(&(pfree_sta_queue->lock), flags);
	return psta;
}
Example #2
0
struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
{
	uint tmp_aid;
	s32	index;
	struct list_head *phash_list;
	struct sta_info	*psta;
	struct  __queue *pfree_sta_queue;
	struct recv_reorder_ctrl *preorder_ctrl;
	int i = 0;
	u16  wRxSeqInitialValue = 0xffff;
	unsigned long flags;

	pfree_sta_queue = &pstapriv->free_sta_queue;
	spin_lock_irqsave(&(pfree_sta_queue->lock), flags);
	if (_queue_empty(pfree_sta_queue) == true)
		psta = NULL;
	else {
		psta = LIST_CONTAINOR(get_next(&pfree_sta_queue->queue),
				      struct sta_info, list);
		list_delete(&(psta->list));
		tmp_aid = psta->aid;
		_init_stainfo(psta);
		memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
		index = wifi_mac_hash(hwaddr);
		if (index >= NUM_STA) {
			psta = NULL;
			goto exit;
		}
		phash_list = &(pstapriv->sta_hash[index]);
		list_insert_tail(&psta->hash_list, phash_list);
		pstapriv->asoc_sta_count++;

/* For the SMC router, the sequence number of first packet of WPS handshake
 * will be 0. In this case, this packet will be dropped by recv_decache function
 * if we use the 0x00 as the default value for tid_rxseq variable. So, we
 * initialize the tid_rxseq variable as the 0xffff.
 */
		for (i = 0; i < 16; i++)
			memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i],
				&wRxSeqInitialValue, 2);
		/* for A-MPDU Rx reordering buffer control */
		for (i = 0; i < 16; i++) {
			preorder_ctrl = &psta->recvreorder_ctrl[i];
			preorder_ctrl->padapter = pstapriv->padapter;
			preorder_ctrl->indicate_seq = 0xffff;
			preorder_ctrl->wend_b = 0xffff;
			preorder_ctrl->wsize_b = 64;
			_init_queue(&preorder_ctrl->pending_recvframe_queue);
			r8712_init_recv_timer(preorder_ctrl);
		}
	}
exit:
	spin_unlock_irqrestore(&(pfree_sta_queue->lock), flags);
	return psta;
}