diff options
Diffstat (limited to 'drivers/staging/rtl8712/recv_linux.c')
| -rw-r--r-- | drivers/staging/rtl8712/recv_linux.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/staging/rtl8712/recv_linux.c b/drivers/staging/rtl8712/recv_linux.c new file mode 100644 index 0000000000..215fca4abb --- /dev/null +++ b/drivers/staging/rtl8712/recv_linux.c @@ -0,0 +1,139 @@ +// 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); +} |