1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
* xmit_linux.c
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#define _XMIT_OSDEP_C_
#include <linux/usb.h>
#include <linux/ip.h>
#include <linux/if_ether.h>
#include <linux/kmemleak.h>
#include "osdep_service.h"
#include "drv_types.h"
#include "wifi.h"
#include "mlme_osdep.h"
#include "xmit_osdep.h"
#include "osdep_intf.h"
static uint remainder_len(struct pkt_file *pfile)
{
return (uint)(pfile->buf_len - ((addr_t)(pfile->cur_addr) -
(addr_t)(pfile->buf_start)));
}
void _r8712_open_pktfile(_pkt *pktptr, struct pkt_file *pfile)
{
pfile->pkt = pktptr;
pfile->cur_addr = pfile->buf_start = pktptr->data;
pfile->pkt_len = pfile->buf_len = pktptr->len;
pfile->cur_buffer = pfile->buf_start;
}
uint _r8712_pktfile_read(struct pkt_file *pfile, u8 *rmem, uint rlen)
{
uint len;
len = remainder_len(pfile);
len = (rlen > len) ? len : rlen;
if (rmem)
skb_copy_bits(pfile->pkt, pfile->buf_len - pfile->pkt_len,
rmem, len);
pfile->cur_addr += len;
pfile->pkt_len -= len;
return len;
}
sint r8712_endofpktfile(struct pkt_file *pfile)
{
return (pfile->pkt_len == 0);
}
void r8712_set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib)
{
struct ethhdr etherhdr;
struct iphdr ip_hdr;
u16 UserPriority = 0;
_r8712_open_pktfile(ppktfile->pkt, ppktfile);
_r8712_pktfile_read(ppktfile, (unsigned char *)ðerhdr, ETH_HLEN);
/* get UserPriority from IP hdr*/
if (pattrib->ether_type == 0x0800) {
_r8712_pktfile_read(ppktfile, (u8 *)&ip_hdr, sizeof(ip_hdr));
/*UserPriority = (ntohs(ip_hdr.tos) >> 5) & 0x3 ;*/
UserPriority = ip_hdr.tos >> 5;
} else {
/* "When priority processing of data frames is supported,
* a STA's SME should send EAPOL-Key frames at the highest
* priority."
*/
if (pattrib->ether_type == 0x888e)
UserPriority = 7;
}
pattrib->priority = UserPriority;
pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN;
pattrib->subtype = WIFI_QOS_DATA_TYPE;
}
void r8712_SetFilter(struct work_struct *work)
{
struct _adapter *adapter = container_of(work, struct _adapter,
wk_filter_rx_ff0);
u8 oldvalue = 0x00, newvalue = 0x00;
unsigned long irqL;
oldvalue = r8712_read8(adapter, 0x117);
newvalue = oldvalue & 0xfe;
r8712_write8(adapter, 0x117, newvalue);
spin_lock_irqsave(&adapter->lock_rx_ff0_filter, irqL);
adapter->blnEnableRxFF0Filter = 1;
spin_unlock_irqrestore(&adapter->lock_rx_ff0_filter, irqL);
do {
msleep(100);
} while (adapter->blnEnableRxFF0Filter == 1);
r8712_write8(adapter, 0x117, oldvalue);
}
int r8712_xmit_resource_alloc(struct _adapter *padapter,
struct xmit_buf *pxmitbuf)
{
int i;
for (i = 0; i < 8; i++) {
pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
if (!pxmitbuf->pxmit_urb[i]) {
netdev_err(padapter->pnetdev, "pxmitbuf->pxmit_urb[i] == NULL\n");
return _FAIL;
}
kmemleak_not_leak(pxmitbuf->pxmit_urb[i]);
}
return _SUCCESS;
}
void r8712_xmit_resource_free(struct _adapter *padapter,
struct xmit_buf *pxmitbuf)
{
int i;
for (i = 0; i < 8; i++) {
if (pxmitbuf->pxmit_urb[i]) {
usb_kill_urb(pxmitbuf->pxmit_urb[i]);
usb_free_urb(pxmitbuf->pxmit_urb[i]);
}
}
}
void r8712_xmit_complete(struct _adapter *padapter, struct xmit_frame *pxframe)
{
if (pxframe->pkt)
dev_kfree_skb_any(pxframe->pkt);
pxframe->pkt = NULL;
}
int r8712_xmit_entry(_pkt *pkt, struct net_device *netdev)
{
struct xmit_frame *xmitframe = NULL;
struct _adapter *adapter = netdev_priv(netdev);
struct xmit_priv *xmitpriv = &(adapter->xmitpriv);
if (!r8712_if_up(adapter))
goto _xmit_entry_drop;
xmitframe = r8712_alloc_xmitframe(xmitpriv);
if (!xmitframe)
goto _xmit_entry_drop;
if ((!r8712_update_attrib(adapter, pkt, &xmitframe->attrib)))
goto _xmit_entry_drop;
adapter->ledpriv.LedControlHandler(adapter, LED_CTL_TX);
xmitframe->pkt = pkt;
if (r8712_pre_xmit(adapter, xmitframe)) {
/*dump xmitframe directly or drop xframe*/
dev_kfree_skb_any(pkt);
xmitframe->pkt = NULL;
}
xmitpriv->tx_pkts++;
xmitpriv->tx_bytes += xmitframe->attrib.last_txcmdsz;
return 0;
_xmit_entry_drop:
if (xmitframe)
r8712_free_xmitframe(xmitpriv, xmitframe);
xmitpriv->tx_drop++;
dev_kfree_skb_any(pkt);
return 0;
}
|