diff options
Diffstat (limited to 'drivers/staging/r8188eu/os_dep/recv_linux.c')
| -rw-r--r-- | drivers/staging/r8188eu/os_dep/recv_linux.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/drivers/staging/r8188eu/os_dep/recv_linux.c b/drivers/staging/r8188eu/os_dep/recv_linux.c new file mode 100644 index 000000000000..917a63e3e94c --- /dev/null +++ b/drivers/staging/r8188eu/os_dep/recv_linux.c @@ -0,0 +1,214 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright(c) 2007 - 2011 Realtek Corporation. */ + +#define _RECV_OSDEP_C_ + +#include "../include/osdep_service.h" +#include "../include/drv_types.h" + +#include "../include/wifi.h" +#include "../include/recv_osdep.h" + +#include "../include/osdep_intf.h" +#include "../include/usb_ops.h" + +/* init os related resource in struct recv_priv */ +int rtw_os_recv_resource_init(struct recv_priv *precvpriv, + struct adapter *padapter) +{ + return _SUCCESS; +} + +/* alloc os related resource in struct recv_frame */ +int rtw_os_recv_resource_alloc(struct adapter *padapter, + struct recv_frame *precvframe) +{ + precvframe->pkt_newalloc = NULL; + precvframe->pkt = NULL; + return _SUCCESS; +} + +/* free os related resource in struct recv_frame */ +void rtw_os_recv_resource_free(struct recv_priv *precvpriv) +{ +} + +/* alloc os related resource in struct recv_buf */ +int rtw_os_recvbuf_resource_alloc(struct adapter *padapter, + struct recv_buf *precvbuf) +{ + int res = _SUCCESS; + + precvbuf->irp_pending = false; + precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL); + if (!precvbuf->purb) + res = _FAIL; + precvbuf->pskb = NULL; + precvbuf->reuse = false; + precvbuf->pallocated_buf = NULL; + precvbuf->pbuf = NULL; + precvbuf->pdata = NULL; + precvbuf->phead = NULL; + precvbuf->ptail = NULL; + precvbuf->pend = NULL; + precvbuf->transfer_len = 0; + precvbuf->len = 0; + return res; +} + +/* free os related resource in struct recv_buf */ +int rtw_os_recvbuf_resource_free(struct adapter *padapter, + struct recv_buf *precvbuf) +{ + usb_free_urb(precvbuf->purb); + return _SUCCESS; +} + +void rtw_handle_tkip_mic_err(struct adapter *padapter, u8 bgroup) +{ + 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 = 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; + } + } + + 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; + memcpy(ev.src_addr.sa_data, &pmlmepriv->assoc_bssid[0], ETH_ALEN); + memset(&wrqu, 0x00, sizeof(wrqu)); + wrqu.data.length = sizeof(ev); + wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE, + &wrqu, (char *)&ev); +} + +void rtw_hostapd_mlme_rx(struct adapter *padapter, + struct recv_frame *precv_frame) +{ +} + +int rtw_recv_indicatepkt(struct adapter *padapter, + struct recv_frame *precv_frame) +{ + struct recv_priv *precvpriv; + struct __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) + goto _recv_indicatepkt_drop; + + skb->data = precv_frame->rx_data; + + skb_set_tail_pointer(skb, precv_frame->len); + + skb->len = precv_frame->len; + + if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { + struct sk_buff *pskb2 = NULL; + struct sta_info *psta = NULL; + struct sta_priv *pstapriv = &padapter->stapriv; + struct rx_pkt_attrib *pattrib = &precv_frame->attrib; + bool bmcast = is_multicast_ether_addr(pattrib->dst); + + if (memcmp(pattrib->dst, myid(&padapter->eeprompriv), + ETH_ALEN)) { + if (bmcast) { + psta = rtw_get_bcmc_stainfo(padapter); + pskb2 = skb_clone(skb, GFP_ATOMIC); + } else { + psta = rtw_get_stainfo(pstapriv, pattrib->dst); + } + + if (psta) { + struct net_device *pnetdev; + + pnetdev = (struct net_device *)padapter->pnetdev; + skb->dev = pnetdev; + skb_set_queue_mapping(skb, rtw_recv_select_queue(skb)); + + rtw_xmit_entry(skb, pnetdev); + + if (bmcast) + skb = pskb2; + else + goto _recv_indicatepkt_end; + } + } + } + + rcu_read_lock(); + rcu_dereference(padapter->pnetdev->rx_handler_data); + rcu_read_unlock(); + + skb->ip_summed = CHECKSUM_NONE; + skb->dev = padapter->pnetdev; + skb->protocol = eth_type_trans(skb, padapter->pnetdev); + + netif_rx(skb); + +_recv_indicatepkt_end: + + /* pointers to NULL before rtw_free_recvframe() */ + precv_frame->pkt = NULL; + + rtw_free_recvframe(precv_frame, pfree_recv_queue); + + return _SUCCESS; + +_recv_indicatepkt_drop: + + /* enqueue back to free_recv_queue */ + rtw_free_recvframe(precv_frame, pfree_recv_queue); + + return _FAIL; +} + +void rtw_os_read_port(struct adapter *padapter, struct recv_buf *precvbuf) +{ + struct recv_priv *precvpriv = &padapter->recvpriv; + + precvbuf->ref_cnt--; + /* free skb in recv_buf */ + dev_kfree_skb_any(precvbuf->pskb); + precvbuf->pskb = NULL; + precvbuf->reuse = false; + if (!precvbuf->irp_pending) + rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, + (unsigned char *)precvbuf); +} + +static void _rtw_reordering_ctrl_timeout_handler(struct timer_list *t) +{ + struct recv_reorder_ctrl *preorder_ctrl; + + preorder_ctrl = from_timer(preorder_ctrl, t, reordering_ctrl_timer); + rtw_reordering_ctrl_timeout_handler(preorder_ctrl); +} + +void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl) +{ + timer_setup(&preorder_ctrl->reordering_ctrl_timer, _rtw_reordering_ctrl_timeout_handler, 0); +} |