mirror of
https://github.com/lwfinger/rtl8188eu.git
synced 2024-11-22 04:23:39 +00:00
136 lines
4 KiB
C
136 lines
4 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#define _RTL8188EU_RECV_C_
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#include <osdep_service.h>
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#include <drv_types.h>
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#include <recv_osdep.h>
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#include <mlme_osdep.h>
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#include <ip.h>
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#include <if_ether.h>
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#include <ethernet.h>
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#include <usb_ops.h>
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#include <wifi.h>
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#include <rtl8188e_hal.h>
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void rtl8188eu_init_recvbuf(struct adapter *padapter, struct recv_buf *precvbuf)
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{
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precvbuf->transfer_len = 0;
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precvbuf->len = 0;
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precvbuf->ref_cnt = 0;
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if (precvbuf->pbuf) {
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precvbuf->pdata = precvbuf->pbuf;
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precvbuf->phead = precvbuf->pbuf;
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precvbuf->ptail = precvbuf->pbuf;
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precvbuf->pend = precvbuf->pdata + MAX_RECVBUF_SZ;
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}
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}
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int rtl8188eu_init_recv_priv(struct adapter *padapter)
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{
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struct recv_priv *precvpriv = &padapter->recvpriv;
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int i, res = _SUCCESS;
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struct recv_buf *precvbuf;
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tasklet_init(&precvpriv->recv_tasklet,
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(void(*)(unsigned long))rtl8188eu_recv_tasklet,
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(unsigned long)padapter);
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/* init recv_buf */
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_rtw_init_queue(&precvpriv->free_recv_buf_queue);
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precvpriv->pallocated_recv_buf = rtw_zmalloc(NR_RECVBUFF * sizeof(struct recv_buf) + 4);
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if (precvpriv->pallocated_recv_buf == NULL) {
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res = _FAIL;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("alloc recv_buf fail!\n"));
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goto exit;
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}
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memset(precvpriv->pallocated_recv_buf, 0, NR_RECVBUFF * sizeof(struct recv_buf) + 4);
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precvpriv->precv_buf = (u8 *)N_BYTE_ALIGMENT((size_t)(precvpriv->pallocated_recv_buf), 4);
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precvbuf = (struct recv_buf *)precvpriv->precv_buf;
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for (i = 0; i < NR_RECVBUFF; i++) {
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INIT_LIST_HEAD(&precvbuf->list);
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spin_lock_init(&precvbuf->recvbuf_lock);
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precvbuf->alloc_sz = MAX_RECVBUF_SZ;
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res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
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if (res == _FAIL)
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break;
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precvbuf->ref_cnt = 0;
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precvbuf->adapter = padapter;
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precvbuf++;
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}
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precvpriv->free_recv_buf_queue_cnt = NR_RECVBUFF;
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skb_queue_head_init(&precvpriv->rx_skb_queue);
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{
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int i;
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size_t tmpaddr = 0;
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size_t alignment = 0;
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struct sk_buff *pskb = NULL;
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skb_queue_head_init(&precvpriv->free_recv_skb_queue);
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for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
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pskb = __netdev_alloc_skb(padapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ, GFP_KERNEL);
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if (pskb) {
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pskb->dev = padapter->pnetdev;
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tmpaddr = (size_t)pskb->data;
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alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
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skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignment));
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skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
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}
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pskb = NULL;
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}
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}
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exit:
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return res;
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}
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void rtl8188eu_free_recv_priv(struct adapter *padapter)
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{
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int i;
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struct recv_buf *precvbuf;
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struct recv_priv *precvpriv = &padapter->recvpriv;
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precvbuf = (struct recv_buf *)precvpriv->precv_buf;
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for (i = 0; i < NR_RECVBUFF; i++) {
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rtw_os_recvbuf_resource_free(padapter, precvbuf);
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precvbuf++;
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}
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kfree(precvpriv->pallocated_recv_buf);
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if (skb_queue_len(&precvpriv->rx_skb_queue))
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DBG_88E(KERN_WARNING "rx_skb_queue not empty\n");
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skb_queue_purge(&precvpriv->rx_skb_queue);
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if (skb_queue_len(&precvpriv->free_recv_skb_queue))
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DBG_88E(KERN_WARNING "free_recv_skb_queue not empty, %d\n", skb_queue_len(&precvpriv->free_recv_skb_queue));
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skb_queue_purge(&precvpriv->free_recv_skb_queue);
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}
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