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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | // SPDX-License-Identifier: GPL-2.0 /****************************************************************************** * recv_linux.c * * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. * Linux device driver for RTL8192SU * * Modifications for inclusion into the Linux staging tree are * Copyright(c) 2010 Larry Finger. All rights reserved. * * Contact information: * WLAN FAE <wlanfae@realtek.com>. * Larry Finger <Larry.Finger@lwfinger.net> * ******************************************************************************/ #define _RECV_OSDEP_C_ #include <linux/usb.h> #include "osdep_service.h" #include "drv_types.h" #include "wifi.h" #include "recv_osdep.h" #include "osdep_intf.h" #include "ethernet.h" #include <linux/if_arp.h> #include "usb_ops.h" /*init os related resource in struct recv_priv*/ /*alloc os related resource in union recv_frame*/ void r8712_os_recv_resource_alloc(struct _adapter *padapter, union recv_frame *precvframe) { precvframe->u.hdr.pkt_newalloc = NULL; precvframe->u.hdr.pkt = NULL; } /*alloc os related resource in struct recv_buf*/ int r8712_os_recvbuf_resource_alloc(struct _adapter *padapter, struct recv_buf *precvbuf) { int res = 0; precvbuf->irp_pending = false; precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL); if (!precvbuf->purb) res = -ENOMEM; precvbuf->pskb = NULL; 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*/ void r8712_os_recvbuf_resource_free(struct _adapter *padapter, struct recv_buf *precvbuf) { if (precvbuf->pskb) dev_kfree_skb_any(precvbuf->pskb); if (precvbuf->purb) { usb_kill_urb(precvbuf->purb); usb_free_urb(precvbuf->purb); } } void r8712_handle_tkip_mic_err(struct _adapter *adapter, u8 bgroup) { union iwreq_data wrqu; struct iw_michaelmicfailure ev; struct mlme_priv *mlmepriv = &adapter->mlmepriv; 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, &mlmepriv->assoc_bssid[0]); memset(&wrqu, 0x00, sizeof(wrqu)); wrqu.data.length = sizeof(ev); wireless_send_event(adapter->pnetdev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev); } void r8712_recv_indicatepkt(struct _adapter *adapter, union recv_frame *recvframe) { struct recv_priv *recvpriv; struct __queue *free_recv_queue; _pkt *skb; struct rx_pkt_attrib *attrib = &recvframe->u.hdr.attrib; recvpriv = &adapter->recvpriv; free_recv_queue = &recvpriv->free_recv_queue; skb = recvframe->u.hdr.pkt; if (!skb) goto _recv_indicatepkt_drop; skb->data = recvframe->u.hdr.rx_data; skb->len = recvframe->u.hdr.len; skb_set_tail_pointer(skb, skb->len); if ((attrib->tcpchk_valid == 1) && (attrib->tcp_chkrpt == 1)) skb->ip_summed = CHECKSUM_UNNECESSARY; else skb->ip_summed = CHECKSUM_NONE; skb->dev = adapter->pnetdev; skb->protocol = eth_type_trans(skb, adapter->pnetdev); netif_rx(skb); recvframe->u.hdr.pkt = NULL; /* pointers to NULL before * r8712_free_recvframe() */ r8712_free_recvframe(recvframe, free_recv_queue); return; _recv_indicatepkt_drop: /*enqueue back to free_recv_queue*/ if (recvframe) r8712_free_recvframe(recvframe, free_recv_queue); recvpriv->rx_drop++; } static void _r8712_reordering_ctrl_timeout_handler (struct timer_list *t) { struct recv_reorder_ctrl *reorder_ctrl = from_timer(reorder_ctrl, t, reordering_ctrl_timer); r8712_reordering_ctrl_timeout_handler(reorder_ctrl); } void r8712_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl) { timer_setup(&preorder_ctrl->reordering_ctrl_timer, _r8712_reordering_ctrl_timeout_handler, 0); } |