[deliverable/linux.git] / drivers / staging / rtl8188eu / hal / rtl8188eu_recv.c

/******************************************************************************
 *
 * 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.
 *
 ******************************************************************************/
#define _RTL8188EU_RECV_C_
#include <linux/kmemleak.h>
#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <mlme_osdep.h>

#include <usb_ops_linux.h>
#include <wifi.h>

#include <rtl8188e_hal.h>

int	rtw_hal_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 =
		kcalloc(NR_RECVBUFF, sizeof(struct recv_buf), GFP_KERNEL);
	if (!precvpriv->pallocated_recv_buf) {
		res = _FAIL;
		RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
				("alloc recv_buf fail!\n"));
		goto exit;
	}

	precvpriv->precv_buf = precvpriv->pallocated_recv_buf;


	precvbuf = (struct recv_buf *)precvpriv->precv_buf;

	for (i = 0; i < NR_RECVBUFF; i++) {
		res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
		if (res == _FAIL)
			break;
		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 alignm = 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) {
				kmemleak_not_leak(pskb);
				pskb->dev = padapter->pnetdev;
				tmpaddr = (size_t)pskb->data;
				alignm = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
				skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignm));

				skb_queue_tail(&precvpriv->free_recv_skb_queue,
						pskb);
			}
			pskb = NULL;
		}
	}
exit:
	return res;
}

void rtw_hal_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++) {
		usb_free_urb(precvbuf->purb);
		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);
}
Commit	Line	Data
7bc88639 LF	1	/******************************************************************************
	2	*
	3	* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of version 2 of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
7bc88639 LF	14	******************************************************************************/
7bc88639 LF	15	#define _RTL8188EU_RECV_C_
bc83c4cf	16	#include <linux/kmemleak.h>
7bc88639 LF	17	#include <osdep_service.h>
	18	#include <drv_types.h>
	19	#include <recv_osdep.h>
	20	#include <mlme_osdep.h>
7bc88639	21
17452ee9	22	#include <usb_ops_linux.h>
7bc88639 LF	23	#include <wifi.h>
	24
	25	#include <rtl8188e_hal.h>
	26
286fe9b3	27	int rtw_hal_init_recv_priv(struct adapter *padapter)
7bc88639 LF	28	{
	29	struct recv_priv *precvpriv = &padapter->recvpriv;
	30	int i, res = _SUCCESS;
	31	struct recv_buf *precvbuf;
	32
	33	tasklet_init(&precvpriv->recv_tasklet,
	34	(void(*)(unsigned long))rtl8188eu_recv_tasklet,
	35	(unsigned long)padapter);
	36
	37	/* init recv_buf */
	38	_rtw_init_queue(&precvpriv->free_recv_buf_queue);
	39
66ed681a	40	precvpriv->pallocated_recv_buf =
7f399026	41	kcalloc(NR_RECVBUFF, sizeof(struct recv_buf), GFP_KERNEL);
5228fb63	42	if (!precvpriv->pallocated_recv_buf) {
7bc88639	43	res = _FAIL;
66ed681a AR	44	RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
66ed681a AR	45	("alloc recv_buf fail!\n"));
7bc88639 LF	46	goto exit;
7bc88639 LF	47	}
7bc88639	48
4246e490	49	precvpriv->precv_buf = precvpriv->pallocated_recv_buf;
7bc88639 LF	50
	51
	52	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
	53
	54	for (i = 0; i < NR_RECVBUFF; i++) {
7bc88639 LF	55	res = rtw_os_recvbuf_resource_alloc(padapter, precvbuf);
	56	if (res == _FAIL)
	57	break;
7bc88639 LF	58	precvbuf->adapter = padapter;
	59	precvbuf++;
	60	}
	61	precvpriv->free_recv_buf_queue_cnt = NR_RECVBUFF;
	62	skb_queue_head_init(&precvpriv->rx_skb_queue);
	63	{
	64	int i;
	65	size_t tmpaddr = 0;
66ed681a	66	size_t alignm = 0;
7bc88639 LF	67	struct sk_buff *pskb = NULL;
	68
	69	skb_queue_head_init(&precvpriv->free_recv_skb_queue);
	70
	71	for (i = 0; i < NR_PREALLOC_RECV_SKB; i++) {
66ed681a AR	72	pskb = __netdev_alloc_skb(padapter->pnetdev,
	73	MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ,
	74	GFP_KERNEL);
7bc88639	75	if (pskb) {
bc83c4cf	76	kmemleak_not_leak(pskb);
7bc88639 LF	77	pskb->dev = padapter->pnetdev;
7bc88639 LF	78	tmpaddr = (size_t)pskb->data;
66ed681a AR	79	alignm = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
66ed681a AR	80	skb_reserve(pskb, (RECVBUFF_ALIGN_SZ - alignm));
7bc88639	81
66ed681a AR	82	skb_queue_tail(&precvpriv->free_recv_skb_queue,
66ed681a AR	83	pskb);
7bc88639 LF	84	}
	85	pskb = NULL;
	86	}
	87	}
	88	exit:
	89	return res;
	90	}
	91
67f7ada8	92	void rtw_hal_free_recv_priv(struct adapter *padapter)
7bc88639 LF	93	{
	94	int i;
	95	struct recv_buf *precvbuf;
	96	struct recv_priv *precvpriv = &padapter->recvpriv;
	97
	98	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
	99
	100	for (i = 0; i < NR_RECVBUFF; i++) {
cba1ce62	101	usb_free_urb(precvbuf->purb);
7bc88639 LF	102	precvbuf++;
	103	}
	104
	105	kfree(precvpriv->pallocated_recv_buf);
	106
	107	if (skb_queue_len(&precvpriv->rx_skb_queue))
	108	DBG_88E(KERN_WARNING "rx_skb_queue not empty\n");
	109	skb_queue_purge(&precvpriv->rx_skb_queue);
	110
	111
	112	if (skb_queue_len(&precvpriv->free_recv_skb_queue))
66ed681a AR	113	DBG_88E(KERN_WARNING "free_recv_skb_queue not empty, %d\n",
66ed681a AR	114	skb_queue_len(&precvpriv->free_recv_skb_queue));
7bc88639 LF	115
	116	skb_queue_purge(&precvpriv->free_recv_skb_queue);
	117	}