Commit | Line | Data |
---|---|---|
2865d42c LF |
1 | /****************************************************************************** |
2 | * xmit_linux.c | |
3 | * | |
4 | * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved. | |
5 | * Linux device driver for RTL8192SU | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of version 2 of the GNU General Public License as | |
9 | * published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
19 | * | |
20 | * Modifications for inclusion into the Linux staging tree are | |
21 | * Copyright(c) 2010 Larry Finger. All rights reserved. | |
22 | * | |
23 | * Contact information: | |
24 | * WLAN FAE <wlanfae@realtek.com> | |
25 | * Larry Finger <Larry.Finger@lwfinger.net> | |
26 | * | |
27 | ******************************************************************************/ | |
28 | ||
29 | #define _XMIT_OSDEP_C_ | |
30 | ||
359140aa | 31 | #include <linux/usb.h> |
20467825 | 32 | #include <linux/ip.h> |
be9a1204 | 33 | #include <linux/if_ether.h> |
580b4105 | 34 | #include <linux/kmemleak.h> |
359140aa | 35 | |
2865d42c LF |
36 | #include "osdep_service.h" |
37 | #include "drv_types.h" | |
38 | ||
2865d42c LF |
39 | #include "wifi.h" |
40 | #include "mlme_osdep.h" | |
41 | #include "xmit_osdep.h" | |
42 | #include "osdep_intf.h" | |
43 | ||
44 | static uint remainder_len(struct pkt_file *pfile) | |
45 | { | |
2865d42c LF |
46 | return (uint)(pfile->buf_len - ((addr_t)(pfile->cur_addr) - |
47 | (addr_t)(pfile->buf_start))); | |
48 | } | |
49 | ||
50 | void _r8712_open_pktfile(_pkt *pktptr, struct pkt_file *pfile) | |
51 | { | |
52 | pfile->pkt = pktptr; | |
53 | pfile->cur_addr = pfile->buf_start = pktptr->data; | |
54 | pfile->pkt_len = pfile->buf_len = pktptr->len; | |
77e73e8c | 55 | pfile->cur_buffer = pfile->buf_start; |
2865d42c LF |
56 | } |
57 | ||
58 | uint _r8712_pktfile_read(struct pkt_file *pfile, u8 *rmem, uint rlen) | |
59 | { | |
60 | uint len; | |
61 | ||
62 | len = remainder_len(pfile); | |
63 | len = (rlen > len) ? len : rlen; | |
64 | if (rmem) | |
65 | skb_copy_bits(pfile->pkt, pfile->buf_len - pfile->pkt_len, | |
66 | rmem, len); | |
67 | pfile->cur_addr += len; | |
68 | pfile->pkt_len -= len; | |
69 | return len; | |
70 | } | |
71 | ||
72 | sint r8712_endofpktfile(struct pkt_file *pfile) | |
73 | { | |
6e4eb869 | 74 | return (pfile->pkt_len == 0); |
2865d42c LF |
75 | } |
76 | ||
77 | ||
78 | void r8712_set_qos(struct pkt_file *ppktfile, struct pkt_attrib *pattrib) | |
79 | { | |
2865d42c LF |
80 | struct ethhdr etherhdr; |
81 | struct iphdr ip_hdr; | |
82 | u16 UserPriority = 0; | |
83 | ||
84 | _r8712_open_pktfile(ppktfile->pkt, ppktfile); | |
85 | _r8712_pktfile_read(ppktfile, (unsigned char *)ðerhdr, ETH_HLEN); | |
86 | ||
87 | /* get UserPriority from IP hdr*/ | |
88 | if (pattrib->ether_type == 0x0800) { | |
e29d3ebc | 89 | _r8712_pktfile_read(ppktfile, (u8 *)&ip_hdr, sizeof(ip_hdr)); |
2865d42c LF |
90 | /*UserPriority = (ntohs(ip_hdr.tos) >> 5) & 0x3 ;*/ |
91 | UserPriority = ip_hdr.tos >> 5; | |
92 | } else { | |
93 | /* "When priority processing of data frames is supported, | |
94 | * a STA's SME should send EAPOL-Key frames at the highest | |
af07477f AW |
95 | * priority." |
96 | */ | |
2865d42c LF |
97 | |
98 | if (pattrib->ether_type == 0x888e) | |
99 | UserPriority = 7; | |
100 | } | |
101 | pattrib->priority = UserPriority; | |
102 | pattrib->hdrlen = WLAN_HDR_A3_QOS_LEN; | |
103 | pattrib->subtype = WIFI_QOS_DATA_TYPE; | |
104 | } | |
105 | ||
f95302ee AB |
106 | void r8712_SetFilter(struct work_struct *work) |
107 | { | |
108 | struct _adapter *padapter = container_of(work, struct _adapter, | |
109 | wkFilterRxFF0); | |
110 | u8 oldvalue = 0x00, newvalue = 0x00; | |
111 | unsigned long irqL; | |
112 | ||
113 | oldvalue = r8712_read8(padapter, 0x117); | |
114 | newvalue = oldvalue & 0xfe; | |
115 | r8712_write8(padapter, 0x117, newvalue); | |
116 | ||
117 | spin_lock_irqsave(&padapter->lockRxFF0Filter, irqL); | |
118 | padapter->blnEnableRxFF0Filter = 1; | |
119 | spin_unlock_irqrestore(&padapter->lockRxFF0Filter, irqL); | |
120 | do { | |
121 | msleep(100); | |
122 | } while (padapter->blnEnableRxFF0Filter == 1); | |
123 | r8712_write8(padapter, 0x117, oldvalue); | |
124 | } | |
125 | ||
2865d42c LF |
126 | int r8712_xmit_resource_alloc(struct _adapter *padapter, |
127 | struct xmit_buf *pxmitbuf) | |
128 | { | |
129 | int i; | |
130 | ||
131 | for (i = 0; i < 8; i++) { | |
68e9b249 | 132 | pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL); |
7cb07dc4 | 133 | if (!pxmitbuf->pxmit_urb[i]) { |
87a573ad | 134 | netdev_err(padapter->pnetdev, "pxmitbuf->pxmit_urb[i] == NULL\n"); |
2865d42c LF |
135 | return _FAIL; |
136 | } | |
580b4105 | 137 | kmemleak_not_leak(pxmitbuf->pxmit_urb[i]); |
2865d42c LF |
138 | } |
139 | return _SUCCESS; | |
140 | } | |
141 | ||
142 | void r8712_xmit_resource_free(struct _adapter *padapter, | |
143 | struct xmit_buf *pxmitbuf) | |
144 | { | |
145 | int i; | |
146 | ||
147 | for (i = 0; i < 8; i++) { | |
148 | if (pxmitbuf->pxmit_urb[i]) { | |
149 | usb_kill_urb(pxmitbuf->pxmit_urb[i]); | |
150 | usb_free_urb(pxmitbuf->pxmit_urb[i]); | |
151 | } | |
152 | } | |
153 | } | |
154 | ||
155 | void r8712_xmit_complete(struct _adapter *padapter, struct xmit_frame *pxframe) | |
156 | { | |
157 | if (pxframe->pkt) | |
158 | dev_kfree_skb_any(pxframe->pkt); | |
159 | pxframe->pkt = NULL; | |
160 | } | |
161 | ||
162 | int r8712_xmit_entry(_pkt *pkt, struct net_device *pnetdev) | |
163 | { | |
164 | struct xmit_frame *pxmitframe = NULL; | |
8f47c28b | 165 | struct _adapter *padapter = netdev_priv(pnetdev); |
2865d42c | 166 | struct xmit_priv *pxmitpriv = &(padapter->xmitpriv); |
2865d42c | 167 | |
af07477f | 168 | if (!r8712_if_up(padapter)) |
2865d42c | 169 | goto _xmit_entry_drop; |
af07477f | 170 | |
2865d42c | 171 | pxmitframe = r8712_alloc_xmitframe(pxmitpriv); |
af07477f | 172 | if (!pxmitframe) |
2865d42c | 173 | goto _xmit_entry_drop; |
af07477f AW |
174 | |
175 | if ((!r8712_update_attrib(padapter, pkt, &pxmitframe->attrib))) | |
2865d42c | 176 | goto _xmit_entry_drop; |
af07477f | 177 | |
2865d42c LF |
178 | padapter->ledpriv.LedControlHandler(padapter, LED_CTL_TX); |
179 | pxmitframe->pkt = pkt; | |
1ca96884 | 180 | if (r8712_pre_xmit(padapter, pxmitframe)) { |
2865d42c LF |
181 | /*dump xmitframe directly or drop xframe*/ |
182 | dev_kfree_skb_any(pkt); | |
183 | pxmitframe->pkt = NULL; | |
184 | } | |
185 | pxmitpriv->tx_pkts++; | |
186 | pxmitpriv->tx_bytes += pxmitframe->attrib.last_txcmdsz; | |
40430f0c | 187 | return 0; |
2865d42c LF |
188 | _xmit_entry_drop: |
189 | if (pxmitframe) | |
190 | r8712_free_xmitframe(pxmitpriv, pxmitframe); | |
191 | pxmitpriv->tx_drop++; | |
192 | dev_kfree_skb_any(pkt); | |
40430f0c | 193 | return 0; |
2865d42c | 194 | } |