diff options
Diffstat (limited to 'drivers/staging/rtl8723au/os_dep/recv_linux.c')
| -rw-r--r-- | drivers/staging/rtl8723au/os_dep/recv_linux.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723au/os_dep/recv_linux.c b/drivers/staging/rtl8723au/os_dep/recv_linux.c new file mode 100644 index 000000000000..84402a589f25 --- /dev/null +++ b/drivers/staging/rtl8723au/os_dep/recv_linux.c @@ -0,0 +1,225 @@ +/****************************************************************************** + * + * 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. + * + ******************************************************************************/ +#define _RECV_OSDEP_C_ + +#include <osdep_service.h> +#include <drv_types.h> + +#include <wifi.h> +#include <recv_osdep.h> + +#include <osdep_intf.h> +#include <ethernet.h> + +#include <usb_ops.h> + +/* alloc os related resource in struct recv_frame */ +int rtw_os_recv_resource_alloc23a(struct rtw_adapter *padapter, + struct recv_frame *precvframe) +{ + int res = _SUCCESS; + + precvframe->pkt = NULL; + + return res; +} + +/* alloc os related resource in struct recv_buf */ +int rtw_os_recvbuf_resource_alloc23a(struct rtw_adapter *padapter, + struct recv_buf *precvbuf) +{ + int res = _SUCCESS; + + precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL); + if (precvbuf->purb == NULL) + res = _FAIL; + + precvbuf->pskb = NULL; + + return res; +} + +/* free os related resource in struct recv_buf */ +int rtw_os_recvbuf_resource_free23a(struct rtw_adapter *padapter, + struct recv_buf *precvbuf) +{ + int ret = _SUCCESS; + + usb_free_urb(precvbuf->purb); + + if (precvbuf->pskb) + dev_kfree_skb_any(precvbuf->pskb); + + return ret; +} + +void rtw_handle_tkip_mic_err23a(struct rtw_adapter *padapter, u8 bgroup) +{ + enum nl80211_key_type key_type = 0; + union iwreq_data wrqu; + struct iw_michaelmicfailure ev; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct security_priv *psecuritypriv = &padapter->securitypriv; + unsigned long cur_time; + + if (psecuritypriv->last_mic_err_time == 0) { + psecuritypriv->last_mic_err_time = jiffies; + } else { + cur_time = jiffies; + + 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 = jiffies; + } + } + + 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); + + 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; + ether_addr_copy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0]); + + memset(&wrqu, 0x00, sizeof(wrqu)); + wrqu.data.length = sizeof(ev); +} + +void rtw_hostapd_mlme_rx23a(struct rtw_adapter *padapter, + struct recv_frame *precv_frame) +{ +} + +int rtw_recv_indicatepkt23a(struct rtw_adapter *padapter, + struct recv_frame *precv_frame) +{ + struct recv_priv *precvpriv; + struct rtw_queue *pfree_recv_queue; + struct sk_buff *skb; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + precvpriv = &(padapter->recvpriv); + pfree_recv_queue = &(precvpriv->free_recv_queue); + + skb = precv_frame->pkt; + if (!skb) { + RT_TRACE(_module_recv_osdep_c_, _drv_err_, + ("rtw_recv_indicatepkt23a():skb == NULL!!!!\n")); + goto _recv_indicatepkt_drop; + } + + RT_TRACE(_module_recv_osdep_c_, _drv_info_, + ("rtw_recv_indicatepkt23a():skb != NULL !!!\n")); + RT_TRACE(_module_recv_osdep_c_, _drv_info_, + ("rtw_recv_indicatepkt23a():precv_frame->hdr.rx_data =%p\n", + precv_frame->pkt->data)); + 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_pointer(skb), skb_end_pointer(skb), skb->len)); + + if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) { + struct sk_buff *pskb2 = NULL; + struct sta_info *psta = NULL; + struct sta_priv *pstapriv = &padapter->stapriv; + struct rx_pkt_attrib *pattrib = &precv_frame->attrib; + int bmcast = is_multicast_ether_addr(pattrib->dst); + + /* DBG_8723A("bmcast =%d\n", bmcast); */ + + if (!ether_addr_equal(pattrib->dst, + myid(&padapter->eeprompriv))) { + /* DBG_8723A("not ap psta =%p, addr =%pM\n", psta, pattrib->dst); */ + if (bmcast) { + psta = rtw_get_bcmc_stainfo23a(padapter); + pskb2 = skb_clone(skb, GFP_ATOMIC); + } else { + psta = rtw_get_stainfo23a(pstapriv, pattrib->dst); + } + + if (psta) { + struct net_device *pnetdev = padapter->pnetdev; + + /* DBG_8723A("directly forwarding to the rtw_xmit23a_entry23a\n"); */ + + /* skb->ip_summed = CHECKSUM_NONE; */ + skb->dev = pnetdev; + skb_set_queue_mapping(skb, rtw_recv_select_queue23a(skb)); + + rtw_xmit23a_entry23a(skb, pnetdev); + + if (bmcast) + skb = pskb2; + else + goto _recv_indicatepkt_end; + } + } else { /* to APself */ + /* DBG_8723A("to APSelf\n"); */ + } + } + + skb->ip_summed = CHECKSUM_NONE; + skb->dev = padapter->pnetdev; + skb->protocol = eth_type_trans(skb, padapter->pnetdev); + + netif_rx(skb); + +_recv_indicatepkt_end: + + precv_frame->pkt = NULL; /* pointers to NULL before rtw_free_recvframe23a() */ + + rtw_free_recvframe23a(precv_frame, pfree_recv_queue); + + RT_TRACE(_module_recv_osdep_c_, _drv_info_, + ("\n rtw_recv_indicatepkt23a :after netif_rx!!!!\n")); + return _SUCCESS; + +_recv_indicatepkt_drop: + + rtw_free_recvframe23a(precv_frame, pfree_recv_queue); + return _FAIL; +} + +void rtw_os_read_port23a(struct rtw_adapter *padapter, struct recv_buf *precvbuf) +{ + struct recv_priv *precvpriv = &padapter->recvpriv; + + /* free skb in recv_buf */ + dev_kfree_skb_any(precvbuf->pskb); + + precvbuf->pskb = NULL; + + rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, precvbuf); +} + +void rtw_init_recv_timer23a(struct recv_reorder_ctrl *preorder_ctrl) +{ + setup_timer(&preorder_ctrl->reordering_ctrl_timer, + rtw_reordering_ctrl_timeout_handler23a, + (unsigned long)preorder_ctrl); +} |