diff options
Diffstat (limited to 'drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/recv_linux.c')
-rwxr-xr-x | drivers/net/wireless/rtlwifi/rtl8723as/os_dep/linux/recv_linux.c | 515 |
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); + +} + |