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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 _RTL8188EU_RECV_C_
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <mlme_osdep.h>
#include <usb_ops.h>
#include <wifi.h>
#include <rtl8188e_hal.h>
void rtl8188eu_init_recvbuf(struct adapter *padapter, struct recv_buf *precvbuf)
{
precvbuf->transfer_len = 0;
precvbuf->len = 0;
precvbuf->ref_cnt = 0;
if (precvbuf->pbuf) {
precvbuf->pdata = precvbuf->pbuf;
precvbuf->phead = precvbuf->pbuf;
precvbuf->ptail = precvbuf->pbuf;
precvbuf->pend = precvbuf->pdata + MAX_RECVBUF_SZ;
}
}
int rtl8188eu_init_recv_priv(struct adapter *padapter)
{
struct recv_priv *precvpriv = &padapter->recvpriv;
int i, res = _SUCCESS;
struct recv_buf *precvbuf;
tasklet_init(&precvpriv->recv_tasklet,
(void(*)(unsigned long))rtl8188eu_recv_tasklet,
(unsigned long)padapter);
/* init recv_buf */
_rtw_init_queue(&precvpriv->free_recv_buf_queue);
precvpriv->pallocated_recv_buf = rtw_zmalloc(NR_RECVBUFF * sizeof(struct recv_buf) + 4);
if (precvpriv->pallocated_recv_buf == NULL) {
res = _FAIL;
RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("alloc recv_buf fail!\n"));
goto exit;
}
_rtw_memset(precvpriv->pallocated_recv_buf, 0, NR_RECVBUFF * sizeof(struct recv_buf) + 4);
precvpriv->precv_buf = (u8 *)N_BYTE_ALIGMENT((size_t)(precvpriv->pallocated_recv_buf), 4);
precvbuf = (struct recv_buf *)precvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
_rtw_init_listhead(&precvbuf->list);
spin_lock_init(&precvbuf->recvbuf_lock);
precvbuf->alloc_sz = MAX_RECVBUF_SZ;
res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
if (res == _FAIL)
break;
precvbuf->ref_cnt = 0;
precvbuf->adapter = padapter;
precvbuf++;
}
precvpriv->free_recv_buf_queue_cnt = NR_RECVBUFF;
skb_queue_head_init(&precvpriv->rx_skb_queue);
{
int i;
size_t tmpaddr = 0;
size_t alignment = 0;
struct sk_buff *pskb = NULL;
skb_queue_head_init(&precvpriv->free_recv_skb_queue);
for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
pskb = __netdev_alloc_skb(padapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ, GFP_KERNEL);
if (pskb) {
pskb->dev = padapter->pnetdev;
tmpaddr = (size_t)pskb->data;
alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignment));
skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
}
pskb = NULL;
}
}
exit:
return res;
}
void rtl8188eu_free_recv_priv(struct adapter *padapter)
{
int i;
struct recv_buf *precvbuf;
struct recv_priv *precvpriv = &padapter->recvpriv;
precvbuf = (struct recv_buf *)precvpriv->precv_buf;
for (i = 0; i < NR_RECVBUFF; i++) {
rtw_os_recvbuf_resource_free(padapter, precvbuf);
precvbuf++;
}
kfree(precvpriv->pallocated_recv_buf);
if (skb_queue_len(&precvpriv->rx_skb_queue))
DBG_88E(KERN_WARNING "rx_skb_queue not empty\n");
skb_queue_purge(&precvpriv->rx_skb_queue);
if (skb_queue_len(&precvpriv->free_recv_skb_queue))
DBG_88E(KERN_WARNING "free_recv_skb_queue not empty, %d\n", skb_queue_len(&precvpriv->free_recv_skb_queue));
skb_queue_purge(&precvpriv->free_recv_skb_queue);
}
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