mirror of
https://github.com/lwfinger/rtl8188eu.git
synced 2024-09-21 08:37:06 +00:00
19db43ecbd
This driver was added to the kernel with version 3.12. The changes in that version are now brought back to the GitHub repo. Essentually all of the code is updated. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
138 lines
4 KiB
C
138 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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_rtw_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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_rtw_init_listhead(&precvbuf->list);
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_rtw_spinlock_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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