1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2010 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 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
17 *
18 * Modifications for inclusion into the Linux staging tree are
19 * Copyright(c) 2010 Larry Finger. All rights reserved.
20 *
21 * Contact information:
22 * WLAN FAE <wlanfae@realtek.com>
23 * Larry Finger <Larry.Finger@lwfinger.net>
24 *
25 ******************************************************************************/
26 #ifndef _RTL871X_XMIT_H_
27 #define _RTL871X_XMIT_H_
28
29 #include "osdep_service.h"
30 #include "drv_types.h"
31 #include "xmit_osdep.h"
32
33 #ifdef CONFIG_R8712_TX_AGGR
34 #define MAX_XMITBUF_SZ (16384)
35 #else
36 #define MAX_XMITBUF_SZ (2048)
37 #endif
38
39 #define NR_XMITBUFF (4)
40
41 #ifdef CONFIG_R8712_TX_AGGR
42 #define AGGR_NR_HIGH_BOUND (4) /*(8) */
43 #define AGGR_NR_LOW_BOUND (2)
44 #endif
45
46 #define XMITBUF_ALIGN_SZ 512
47 #define TX_GUARD_BAND 5
48 #define MAX_NUMBLKS (1)
49
50 /* Fixed the Big Endian bug when using the software driver encryption.*/
51 #define WEP_IV(pattrib_iv, txpn, keyidx)\
52 do { \
53 pattrib_iv[0] = txpn._byte_.TSC0;\
54 pattrib_iv[1] = txpn._byte_.TSC1;\
55 pattrib_iv[2] = txpn._byte_.TSC2;\
56 pattrib_iv[3] = ((keyidx & 0x3)<<6);\
57 txpn.val = (txpn.val == 0xffffff) ? 0 : (txpn.val+1);\
58 } while (0)
59
60 /* Fixed the Big Endian bug when doing the Tx.
61 * The Linksys WRH54G will check this.*/
62 #define TKIP_IV(pattrib_iv, txpn, keyidx)\
63 do { \
64 pattrib_iv[0] = txpn._byte_.TSC1;\
65 pattrib_iv[1] = (txpn._byte_.TSC1 | 0x20) & 0x7f;\
66 pattrib_iv[2] = txpn._byte_.TSC0;\
67 pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
68 pattrib_iv[4] = txpn._byte_.TSC2;\
69 pattrib_iv[5] = txpn._byte_.TSC3;\
70 pattrib_iv[6] = txpn._byte_.TSC4;\
71 pattrib_iv[7] = txpn._byte_.TSC5;\
72 txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
73 (txpn.val+1);\
74 } while (0)
75
76 #define AES_IV(pattrib_iv, txpn, keyidx)\
77 do { \
78 pattrib_iv[0] = txpn._byte_.TSC0;\
79 pattrib_iv[1] = txpn._byte_.TSC1;\
80 pattrib_iv[2] = 0;\
81 pattrib_iv[3] = BIT(5) | ((keyidx & 0x3)<<6);\
82 pattrib_iv[4] = txpn._byte_.TSC2;\
83 pattrib_iv[5] = txpn._byte_.TSC3;\
84 pattrib_iv[6] = txpn._byte_.TSC4;\
85 pattrib_iv[7] = txpn._byte_.TSC5;\
86 txpn.val = txpn.val == 0xffffffffffffULL ? 0 : \
87 (txpn.val+1);\
88 } while (0)
89
90 struct hw_xmit {
91 spinlock_t xmit_lock;
92 struct list_head pending;
93 struct __queue *sta_queue;
94 struct hw_txqueue *phwtxqueue;
95 sint txcmdcnt;
96 int accnt;
97 };
98
99 struct pkt_attrib {
100 u8 type;
101 u8 subtype;
102 u8 bswenc;
103 u8 dhcp_pkt;
104
105 u16 seqnum;
106 u16 ether_type;
107 u16 pktlen; /* the original 802.3 pkt raw_data len
108 * (not include ether_hdr data) */
109 u16 last_txcmdsz;
110
111 u8 pkt_hdrlen; /*the original 802.3 pkt header len*/
112 u8 hdrlen; /*the WLAN Header Len*/
113 u8 nr_frags;
114 u8 ack_policy;
115 u8 mac_id;
116 u8 vcs_mode; /*virtual carrier sense method*/
117 u8 pctrl;/*per packet txdesc control enable*/
118 u8 qsel;
119
120 u8 priority;
121 u8 encrypt; /* when 0 indicate no encrypt. when non-zero,
122 * indicate the encrypt algorith*/
123 u8 iv_len;
124 u8 icv_len;
125 unsigned char iv[8];
126 unsigned char icv[8];
127 u8 dst[ETH_ALEN];
128 u8 src[ETH_ALEN];
129 u8 ta[ETH_ALEN];
130 u8 ra[ETH_ALEN];
131 struct sta_info *psta;
132 };
133
134 #define WLANHDR_OFFSET 64
135 #define DATA_FRAMETAG 0x01
136 #define L2_FRAMETAG 0x02
137 #define MGNT_FRAMETAG 0x03
138 #define AMSDU_FRAMETAG 0x04
139 #define EII_FRAMETAG 0x05
140 #define IEEE8023_FRAMETAG 0x06
141 #define MP_FRAMETAG 0x07
142 #define TXAGG_FRAMETAG 0x08
143
144 struct xmit_buf {
145 struct list_head list;
146
147 u8 *pallocated_buf;
148 u8 *pbuf;
149 void *priv_data;
150 struct urb *pxmit_urb[8];
151 u32 aggr_nr;
152 };
153
154 struct xmit_frame {
155 struct list_head list;
156 struct pkt_attrib attrib;
157 _pkt *pkt;
158 int frame_tag;
159 struct _adapter *padapter;
160 u8 *buf_addr;
161 struct xmit_buf *pxmitbuf;
162 u8 *mem_addr;
163 u16 sz[8];
164 struct urb *pxmit_urb[8];
165 u8 bpending[8];
166 u8 last[8];
167 };
168
169 struct tx_servq {
170 struct list_head tx_pending;
171 struct __queue sta_pending;
172 int qcnt;
173 };
174
175 struct sta_xmit_priv {
176 spinlock_t lock;
177 sint option;
178 sint apsd_setting; /* When bit mask is on, the associated edca
179 * queue supports APSD.*/
180 struct tx_servq be_q; /* priority == 0,3 */
181 struct tx_servq bk_q; /* priority == 1,2*/
182 struct tx_servq vi_q; /*priority == 4,5*/
183 struct tx_servq vo_q; /*priority == 6,7*/
184 struct list_head legacy_dz;
185 struct list_head apsd;
186 u16 txseq_tid[16];
187 uint sta_tx_bytes;
188 u64 sta_tx_pkts;
189 uint sta_tx_fail;
190 };
191
192 struct hw_txqueue {
193 /*volatile*/ sint head;
194 /*volatile*/ sint tail;
195 /*volatile*/ sint free_sz; /*in units of 64 bytes*/
196 /*volatile*/ sint free_cmdsz;
197 /*volatile*/ sint txsz[8];
198 uint ff_hwaddr;
199 uint cmd_hwaddr;
200 sint ac_tag;
201 };
202
203 struct xmit_priv {
204 spinlock_t lock;
205 struct semaphore xmit_sema;
206 struct semaphore terminate_xmitthread_sema;
207 struct __queue be_pending;
208 struct __queue bk_pending;
209 struct __queue vi_pending;
210 struct __queue vo_pending;
211 struct __queue bm_pending;
212 struct __queue legacy_dz_queue;
213 struct __queue apsd_queue;
214 u8 *pallocated_frame_buf;
215 u8 *pxmit_frame_buf;
216 uint free_xmitframe_cnt;
217 uint mapping_addr;
218 uint pkt_sz;
219 struct __queue free_xmit_queue;
220 struct hw_txqueue be_txqueue;
221 struct hw_txqueue bk_txqueue;
222 struct hw_txqueue vi_txqueue;
223 struct hw_txqueue vo_txqueue;
224 struct hw_txqueue bmc_txqueue;
225 uint frag_len;
226 struct _adapter *adapter;
227 u8 vcs_setting;
228 u8 vcs;
229 u8 vcs_type;
230 u16 rts_thresh;
231 uint tx_bytes;
232 u64 tx_pkts;
233 uint tx_drop;
234 struct hw_xmit *hwxmits;
235 u8 hwxmit_entry;
236 struct semaphore tx_retevt;/*all tx return event;*/
237 u8 txirp_cnt;
238 struct tasklet_struct xmit_tasklet;
239 _workitem xmit_pipe4_reset_wi;
240 _workitem xmit_pipe6_reset_wi;
241 _workitem xmit_piped_reset_wi;
242 /*per AC pending irp*/
243 int beq_cnt;
244 int bkq_cnt;
245 int viq_cnt;
246 int voq_cnt;
247 struct __queue free_amsdu_xmit_queue;
248 u8 *pallocated_amsdu_frame_buf;
249 u8 *pxmit_amsdu_frame_buf;
250 uint free_amsdu_xmitframe_cnt;
251 struct __queue free_txagg_xmit_queue;
252 u8 *pallocated_txagg_frame_buf;
253 u8 *pxmit_txagg_frame_buf;
254 uint free_txagg_xmitframe_cnt;
255 int cmdseq;
256 struct __queue free_xmitbuf_queue;
257 struct __queue pending_xmitbuf_queue;
258 u8 *pallocated_xmitbuf;
259 u8 *pxmitbuf;
260 uint free_xmitbuf_cnt;
261 };
262
get_free_xmit_queue(struct xmit_priv * pxmitpriv)263 static inline struct __queue *get_free_xmit_queue(
264 struct xmit_priv *pxmitpriv)
265 {
266 return &(pxmitpriv->free_xmit_queue);
267 }
268
269 int r8712_free_xmitbuf(struct xmit_priv *pxmitpriv,
270 struct xmit_buf *pxmitbuf);
271 struct xmit_buf *r8712_alloc_xmitbuf(struct xmit_priv *pxmitpriv);
272 void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len);
273 struct xmit_frame *r8712_alloc_xmitframe(struct xmit_priv *pxmitpriv);
274 void r8712_free_xmitframe(struct xmit_priv *pxmitpriv,
275 struct xmit_frame *pxmitframe);
276 void r8712_free_xmitframe_queue(struct xmit_priv *pxmitpriv,
277 struct __queue *pframequeue);
278 sint r8712_xmit_classifier(struct _adapter *padapter,
279 struct xmit_frame *pxmitframe);
280 sint r8712_xmitframe_coalesce(struct _adapter *padapter, _pkt *pkt,
281 struct xmit_frame *pxmitframe);
282 sint _r8712_init_hw_txqueue(struct hw_txqueue *phw_txqueue, u8 ac_tag);
283 void _r8712_init_sta_xmit_priv(struct sta_xmit_priv *psta_xmitpriv);
284 sint r8712_update_attrib(struct _adapter *padapter, _pkt *pkt,
285 struct pkt_attrib *pattrib);
286 int r8712_txframes_sta_ac_pending(struct _adapter *padapter,
287 struct pkt_attrib *pattrib);
288 sint _r8712_init_xmit_priv(struct xmit_priv *pxmitpriv,
289 struct _adapter *padapter);
290 void _free_xmit_priv(struct xmit_priv *pxmitpriv);
291 void r8712_free_xmitframe_ex(struct xmit_priv *pxmitpriv,
292 struct xmit_frame *pxmitframe);
293 int r8712_pre_xmit(struct _adapter *padapter, struct xmit_frame *pxmitframe);
294 int r8712_xmit_enqueue(struct _adapter *padapter,
295 struct xmit_frame *pxmitframe);
296 int r8712_xmit_direct(struct _adapter *padapter, struct xmit_frame *pxmitframe);
297 void r8712_xmit_bh(void *priv);
298
299 void xmitframe_xmitbuf_attach(struct xmit_frame *pxmitframe,
300 struct xmit_buf *pxmitbuf);
301
302 #include "rtl8712_xmit.h"
303
304 #endif /*_RTL871X_XMIT_H_*/
305
306