// 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);
|
}
|
