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/******************************************************************************
*
* 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.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
*
******************************************************************************/
#define _RECV_OSDEP_C_
#include <osdep_service.h>
#include <drv_types.h>
#include <wifi.h>
#include <recv_osdep.h>
#include <osdep_intf.h>
#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 == NULL)
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;
}
}
_rtw_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);
_rtw_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 == NULL) {
RT_TRACE(_module_recv_osdep_c_, _drv_err_,
("rtw_recv_indicatepkt():skb == NULL something wrong!!!!\n"));
goto _recv_indicatepkt_drop;
}
RT_TRACE(_module_recv_osdep_c_, _drv_info_,
("rtw_recv_indicatepkt():skb != NULL !!!\n"));
RT_TRACE(_module_recv_osdep_c_, _drv_info_,
("rtw_recv_indicatepkt():precv_frame->rx_head =%p precv_frame->hdr.rx_data =%p\n",
precv_frame->rx_head, precv_frame->rx_data));
RT_TRACE(_module_recv_osdep_c_, _drv_info_,
("precv_frame->hdr.rx_tail =%p precv_frame->rx_end =%p precv_frame->hdr.len =%d\n",
precv_frame->rx_tail, precv_frame->rx_end,
precv_frame->len));
skb->data = precv_frame->rx_data;
skb_set_tail_pointer(skb, precv_frame->len);
skb->len = precv_frame->len;
RT_TRACE(_module_recv_osdep_c_, _drv_info_,
("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)) {
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_MCAST(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);
RT_TRACE(_module_recv_osdep_c_, _drv_info_,
("\n rtw_recv_indicatepkt :after netif_rx!!!!\n"));
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(void *func_context)
{
struct recv_reorder_ctrl *preorder_ctrl;
preorder_ctrl = (struct recv_reorder_ctrl *)func_context;
rtw_reordering_ctrl_timeout_handler(preorder_ctrl);
}
void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
{
struct adapter *padapter = preorder_ctrl->padapter;
_init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, _rtw_reordering_ctrl_timeout_handler, preorder_ctrl);
}
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