1 files changed, 515 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/recv_linux.c b/drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/recv_linux.c
new file mode 100755
index 000000000000..04a994e4fca3
--- /dev/null
+++ b/drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/recv_linux.c
@@ -0,0 +1,515 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ *
+ ******************************************************************************/
+#define _RECV_OSDEP_C_
+
+#include <drv_conf.h>
+#include <osdep_service.h>
+#include <drv_types.h>
+
+#include <wifi.h>
+#include <recv_osdep.h>
+
+#include <osdep_intf.h>
+#include <ethernet.h>
+
+#ifdef CONFIG_USB_HCI
+#include <usb_ops.h>
+#endif
+
+//init os related resource in struct recv_priv
+int rtw_os_recv_resource_init(struct recv_priv *precvpriv, _adapter *padapter)
+{
+	int	res=_SUCCESS;
+
+	return res;
+}
+
+//alloc os related resource in union recv_frame
+int rtw_os_recv_resource_alloc(_adapter *padapter, union recv_frame *precvframe)
+{
+	int	res=_SUCCESS;
+	
+	precvframe->u.hdr.pkt_newalloc = precvframe->u.hdr.pkt = NULL;
+
+	return res;
+
+}
+
+//free os related resource in union recv_frame
+void rtw_os_recv_resource_free(struct recv_priv *precvpriv)
+{
+	sint i;
+	union recv_frame *precvframe;
+	precvframe = (union recv_frame*) precvpriv->precv_frame_buf;
+
+	for(i=0; i < NR_RECVFRAME; i++)
+	{
+		if(precvframe->u.hdr.pkt)
+		{
+			rtw_skb_free(precvframe->u.hdr.pkt);//free skb by driver
+			precvframe->u.hdr.pkt = NULL;
+		}
+		precvframe++;
+	}
+
+}
+
+
+//alloc os related resource in struct recv_buf
+int rtw_os_recvbuf_resource_alloc(_adapter *padapter, struct recv_buf *precvbuf)
+{
+	int res=_SUCCESS;
+
+#ifdef CONFIG_USB_HCI
+	struct dvobj_priv	*pdvobjpriv = adapter_to_dvobj(padapter);
+	struct usb_device	*pusbd = pdvobjpriv->pusbdev;
+
+	precvbuf->irp_pending = _FALSE;
+	precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
+	if(precvbuf->purb == NULL){
+		res = _FAIL;
+	}
+
+	precvbuf->pskb = NULL;
+
+	precvbuf->reuse = _FALSE;
+
+	precvbuf->pallocated_buf  = precvbuf->pbuf = NULL;
+
+	precvbuf->pdata = precvbuf->phead = precvbuf->ptail = precvbuf->pend = NULL;
+
+	precvbuf->transfer_len = 0;
+
+	precvbuf->len = 0;
+
+	#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
+	precvbuf->pallocated_buf = rtw_usb_buffer_alloc(pusbd, (size_t)precvbuf->alloc_sz, &precvbuf->dma_transfer_addr);
+	precvbuf->pbuf = precvbuf->pallocated_buf;
+	if(precvbuf->pallocated_buf == NULL)
+		return _FAIL;
+	#endif //CONFIG_USE_USB_BUFFER_ALLOC_RX
+	
+#endif //CONFIG_USB_HCI
+
+	return res;
+}
+
+//free os related resource in struct recv_buf
+int rtw_os_recvbuf_resource_free(_adapter *padapter, struct recv_buf *precvbuf)
+{
+	int ret = _SUCCESS;
+
+#ifdef CONFIG_USB_HCI
+
+#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
+
+	struct dvobj_priv	*pdvobjpriv = adapter_to_dvobj(padapter);
+	struct usb_device	*pusbd = pdvobjpriv->pusbdev;
+
+	rtw_usb_buffer_free(pusbd, (size_t)precvbuf->alloc_sz, precvbuf->pallocated_buf, precvbuf->dma_transfer_addr);
+	precvbuf->pallocated_buf =  NULL;
+	precvbuf->dma_transfer_addr = 0;
+
+#endif //CONFIG_USE_USB_BUFFER_ALLOC_RX
+
+	if(precvbuf->purb)
+	{
+		//usb_kill_urb(precvbuf->purb);
+		usb_free_urb(precvbuf->purb);
+	}
+
+#endif //CONFIG_USB_HCI
+
+
+	if(precvbuf->pskb)
+		rtw_skb_free(precvbuf->pskb);
+
+
+	return ret;
+
+}
+
+void rtw_handle_tkip_mic_err(_adapter *padapter,u8 bgroup)
+{
+#ifdef CONFIG_IOCTL_CFG80211
+	enum nl80211_key_type key_type;
+#endif
+	union iwreq_data wrqu;
+	struct iw_michaelmicfailure    ev;
+	struct mlme_priv*              pmlmepriv  = &padapter->mlmepriv;
+	struct security_priv	*psecuritypriv = &padapter->securitypriv;	
+	u32 cur_time = 0;
+
+	if( psecuritypriv->last_mic_err_time == 0 )
+	{
+		psecuritypriv->last_mic_err_time = rtw_get_current_time();
+	}
+	else
+	{
+		cur_time = rtw_get_current_time();
+
+		if( cur_time - psecuritypriv->last_mic_err_time < 60*HZ )
+		{
+			psecuritypriv->btkip_countermeasure = _TRUE;
+			psecuritypriv->last_mic_err_time = 0;
+			psecuritypriv->btkip_countermeasure_time = cur_time;
+		}
+		else
+		{
+			psecuritypriv->last_mic_err_time = rtw_get_current_time();
+		}
+	}
+
+#ifdef CONFIG_IOCTL_CFG80211
+	if ( bgroup )
+	{
+		key_type |= NL80211_KEYTYPE_GROUP;
+	}
+	else
+	{
+		key_type |= NL80211_KEYTYPE_PAIRWISE;
+	}
+
+	cfg80211_michael_mic_failure(padapter->pnetdev, (u8 *)&pmlmepriv->assoc_bssid[ 0 ], key_type, -1,
+		NULL, GFP_ATOMIC);
+#endif
+
+	_rtw_memset( &ev, 0x00, sizeof( ev ) );
+	if ( bgroup )
+	{
+	    ev.flags |= IW_MICFAILURE_GROUP;
+	}
+	else
+	{
+	    ev.flags |= IW_MICFAILURE_PAIRWISE;
+	}
+
+	ev.src_addr.sa_family = ARPHRD_ETHER;
+	_rtw_memcpy( ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
+
+	_rtw_memset( &wrqu, 0x00, sizeof( wrqu ) );
+	wrqu.data.length = sizeof( ev );
+
+#ifndef CONFIG_IOCTL_CFG80211
+	wireless_send_event( padapter->pnetdev, IWEVMICHAELMICFAILURE, &wrqu, (char*) &ev );
+#endif
+}
+
+void rtw_hostapd_mlme_rx(_adapter *padapter, union recv_frame *precv_frame)
+{
+#ifdef CONFIG_HOSTAPD_MLME
+	_pkt *skb;
+	struct hostapd_priv *phostapdpriv  = padapter->phostapdpriv;
+	struct net_device *pmgnt_netdev = phostapdpriv->pmgnt_netdev;
+
+	RT_TRACE(_module_recv_osdep_c_, _drv_info_, ("+rtw_hostapd_mlme_rx\n"));
+
+	skb = precv_frame->u.hdr.pkt;
+
+	if (skb == NULL)
+		return;
+
+	skb->data = precv_frame->u.hdr.rx_data;
+	skb->tail = precv_frame->u.hdr.rx_tail;
+	skb->len = precv_frame->u.hdr.len;
+
+	//pskb_copy = rtw_skb_copy(skb);
+//	if(skb == NULL) goto _exit;
+
+	skb->dev = pmgnt_netdev;
+	skb->ip_summed = CHECKSUM_NONE;
+	skb->pkt_type = PACKET_OTHERHOST;
+	//skb->protocol = __constant_htons(0x0019); /*ETH_P_80211_RAW*/
+	skb->protocol = __constant_htons(0x0003); /*ETH_P_80211_RAW*/
+
+	//DBG_871X("(1)data=0x%x, head=0x%x, tail=0x%x, mac_header=0x%x, len=%d\n", skb->data, skb->head, skb->tail, skb->mac_header, skb->len);
+
+	//skb->mac.raw = skb->data;
+	skb_reset_mac_header(skb);
+
+       //skb_pull(skb, 24);
+       _rtw_memset(skb->cb, 0, sizeof(skb->cb));
+
+	rtw_netif_rx(pmgnt_netdev, skb);
+
+	precv_frame->u.hdr.pkt = NULL; // set pointer to NULL before rtw_free_recvframe() if call rtw_netif_rx()
+#endif
+}
+
+int rtw_recv_indicatepkt(_adapter *padapter, union recv_frame *precv_frame)
+{
+	struct recv_priv *precvpriv;
+	_queue	*pfree_recv_queue;
+	_pkt *skb;
+	struct mlme_priv*pmlmepriv = &padapter->mlmepriv;
+#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
+	struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
+#endif
+
+#ifdef CONFIG_BR_EXT
+	void *br_port = NULL;
+#endif
+
+_func_enter_;
+
+	DBG_COUNTER(padapter->rx_logs.os_indicate);
+
+	precvpriv = &(padapter->recvpriv);
+	pfree_recv_queue = &(precvpriv->free_recv_queue);
+
+#ifdef CONFIG_DRVEXT_MODULE
+	if (drvext_rx_handler(padapter, precv_frame->u.hdr.rx_data, precv_frame->u.hdr.len) == _SUCCESS)
+	{
+		goto _recv_indicatepkt_drop;
+	}
+#endif
+
+#ifdef CONFIG_WAPI_SUPPORT
+	if (rtw_wapi_check_for_drop(padapter,precv_frame))
+	{
+		WAPI_TRACE(WAPI_ERR, "%s(): Rx Reorder Drop case!!\n", __FUNCTION__);
+		goto _recv_indicatepkt_drop;
+	}
+#endif
+
+	skb = precv_frame->u.hdr.pkt;
+	if(skb == NULL)
+	{
+		RT_TRACE(_module_recv_osdep_c_,_drv_err_,("rtw_recv_indicatepkt():skb==NULL something wrong!!!!\n"));
+		goto _recv_indicatepkt_drop;
+	}
+
+	RT_TRACE(_module_recv_osdep_c_,_drv_info_,("rtw_recv_indicatepkt():skb != NULL !!!\n"));		
+	RT_TRACE(_module_recv_osdep_c_,_drv_info_,("rtw_recv_indicatepkt():precv_frame->u.hdr.rx_head=%p  precv_frame->hdr.rx_data=%p\n", precv_frame->u.hdr.rx_head, precv_frame->u.hdr.rx_data));
+	RT_TRACE(_module_recv_osdep_c_,_drv_info_,("precv_frame->hdr.rx_tail=%p precv_frame->u.hdr.rx_end=%p precv_frame->hdr.len=%d \n", precv_frame->u.hdr.rx_tail, precv_frame->u.hdr.rx_end, precv_frame->u.hdr.len));
+
+	skb->data = precv_frame->u.hdr.rx_data;
+
+	skb_set_tail_pointer(skb, precv_frame->u.hdr.len);
+
+	skb->len = precv_frame->u.hdr.len;
+
+	RT_TRACE(_module_recv_osdep_c_,_drv_info_,("\n skb->head=%p skb->data=%p skb->tail=%p skb->end=%p skb->len=%d\n", skb->head, skb->data, skb->tail, skb->end, skb->len));
+
+	if(check_fwstate(pmlmepriv, WIFI_AP_STATE) == _TRUE)
+	{
+	 	_pkt *pskb2=NULL;
+	 	struct sta_info *psta = NULL;
+	 	struct sta_priv *pstapriv = &padapter->stapriv;
+		struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
+		int bmcast = IS_MCAST(pattrib->dst);
+
+		//DBG_871X("bmcast=%d\n", bmcast);
+
+		if(_rtw_memcmp(pattrib->dst, myid(&padapter->eeprompriv), ETH_ALEN)==_FALSE)
+		{
+			//DBG_871X("not ap psta=%p, addr=%pM\n", psta, pattrib->dst);
+
+			if(bmcast)
+			{
+				psta = rtw_get_bcmc_stainfo(padapter);
+				pskb2 = rtw_skb_clone(skb);
+			} else {
+				psta = rtw_get_stainfo(pstapriv, pattrib->dst);
+			}
+
+			if(psta)
+			{
+				struct net_device *pnetdev= (struct net_device*)padapter->pnetdev;			
+
+				//DBG_871X("directly forwarding to the rtw_xmit_entry\n");
+
+				//skb->ip_summed = CHECKSUM_NONE;
+				skb->dev = pnetdev;				
+#if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,35))
+				skb_set_queue_mapping(skb, rtw_recv_select_queue(skb));
+#endif //LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,35)
+			
+				_rtw_xmit_entry(skb, pnetdev);
+
+				if(bmcast)
+					skb = pskb2;
+				else
+					goto _recv_indicatepkt_end;
+			}
+
+
+		}
+		else// to APself
+		{
+			//DBG_871X("to APSelf\n");
+		}
+	}
+	
+
+#ifdef CONFIG_BR_EXT
+
+#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35))
+	br_port = padapter->pnetdev->br_port;
+#else   // (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35))
+	rcu_read_lock();
+	br_port = rcu_dereference(padapter->pnetdev->rx_handler_data);
+	rcu_read_unlock();
+#endif  // (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35))
+
+	if( br_port	&& (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_ADHOC_STATE) == _TRUE) )	 	
+	{
+		int nat25_handle_frame(_adapter *priv, struct sk_buff *skb);
+		if (nat25_handle_frame(padapter, skb) == -1) {
+			//priv->ext_stats.rx_data_drops++;
+			//DEBUG_ERR("RX DROP: nat25_handle_frame fail!\n");
+			//return FAIL;
+#if 1			
+			// bypass this frame to upper layer!!
+#else
+			goto _recv_indicatepkt_drop;
+#endif
+		}	
+	}
+
+#endif	// CONFIG_BR_EXT
+
+
+#ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
+	if ( (pattrib->tcpchk_valid == 1) && (pattrib->tcp_chkrpt == 1) ) {
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		//DBG_871X("CHECKSUM_UNNECESSARY \n");
+	} else {
+		skb->ip_summed = CHECKSUM_NONE;
+		//DBG_871X("CHECKSUM_NONE(%d, %d) \n", pattrib->tcpchk_valid, pattrib->tcp_chkrpt);
+	}
+#else /* !CONFIG_TCP_CSUM_OFFLOAD_RX */
+
+	skb->ip_summed = CHECKSUM_NONE;
+
+#endif
+
+	skb->dev = padapter->pnetdev;
+	skb->protocol = eth_type_trans(skb, padapter->pnetdev);
+
+	#ifdef DBG_TRX_STA_PKTS
+	{
+		
+		struct sta_info *psta = NULL;
+	 	struct sta_priv *pstapriv = &padapter->stapriv;
+		struct rx_pkt_attrib *pattrib = &precv_frame->u.hdr.attrib;
+		int bmcast = IS_MCAST(pattrib->dst);
+
+		if(bmcast)
+		{
+			psta = rtw_get_bcmc_stainfo(padapter);
+	
+		} else {
+			psta = rtw_get_stainfo(pstapriv, pattrib->src);
+		}
+		if(psta)
+		{
+			switch(pattrib->priority)
+			{
+				case 1:
+				case 2:				
+					psta->rx_bk_cnt++;
+					break;
+				case 4:
+				case 5:				
+					psta->rx_vi_cnt++;
+					break;
+				case 6:
+				case 7:				
+					psta->rx_vo_cnt++;
+					break;
+				case 0:
+				case 3:
+				default:				
+					psta->rx_be_cnt++;
+					break;	
+			}
+		}		
+	}
+	#endif
+
+	rtw_netif_rx(padapter->pnetdev, skb);
+
+_recv_indicatepkt_end:
+
+	precv_frame->u.hdr.pkt = NULL; // pointers to NULL before rtw_free_recvframe()
+
+	rtw_free_recvframe(precv_frame, pfree_recv_queue);
+
+	RT_TRACE(_module_recv_osdep_c_,_drv_info_,("\n rtw_recv_indicatepkt :after rtw_netif_rx!!!!\n"));
+
+_func_exit_;
+
+        return _SUCCESS;
+
+_recv_indicatepkt_drop:
+
+	 //enqueue back to free_recv_queue
+	 if(precv_frame)
+		 rtw_free_recvframe(precv_frame, pfree_recv_queue);
+
+	 DBG_COUNTER(padapter->rx_logs.os_indicate_err);
+	 return _FAIL;
+
+_func_exit_;
+
+}
+
+void rtw_os_read_port(_adapter *padapter, struct recv_buf *precvbuf)
+{
+	struct recv_priv *precvpriv = &padapter->recvpriv;
+
+#ifdef CONFIG_USB_HCI
+
+	precvbuf->ref_cnt--;
+
+	//free skb in recv_buf
+	rtw_skb_free(precvbuf->pskb);
+
+	precvbuf->pskb = NULL;
+	precvbuf->reuse = _FALSE;
+
+	if(precvbuf->irp_pending == _FALSE)
+	{
+		rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
+	}
+
+
+#endif
+#if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
+		precvbuf->pskb = NULL;
+#endif
+
+}
+void _rtw_reordering_ctrl_timeout_handler (void *FunctionContext);
+void _rtw_reordering_ctrl_timeout_handler (void *FunctionContext)
+{
+	struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)FunctionContext;
+	rtw_reordering_ctrl_timeout_handler(preorder_ctrl);
+}
+
+void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
+{
+	_adapter *padapter = preorder_ctrl->padapter;
+
+	_init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, _rtw_reordering_ctrl_timeout_handler, preorder_ctrl);
+
+}
+