1 /******************************************************************************
2 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
3 *
4 * This program is distributed in the hope that it will be useful, but WITHOUT
5 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
6 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
7 * more details.
8 *
9 * You should have received a copy of the GNU General Public License along with
10 * this program; if not, write to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
12 *
13 * The full GNU General Public License is included in this distribution in the
14 * file called LICENSE.
15 *
16 * Contact Information:
17 * wlanfae <wlanfae@realtek.com>
18 ******************************************************************************/
19 #include "rtllib.h"
20 #include "rtl819x_BA.h"
21
ActivateBAEntry(struct rtllib_device * ieee,struct ba_record * pBA,u16 Time)22 static void ActivateBAEntry(struct rtllib_device *ieee, struct ba_record *pBA,
23 u16 Time)
24 {
25 pBA->bValid = true;
26 if (Time != 0)
27 mod_timer(&pBA->Timer, jiffies + MSECS(Time));
28 }
29
DeActivateBAEntry(struct rtllib_device * ieee,struct ba_record * pBA)30 static void DeActivateBAEntry(struct rtllib_device *ieee, struct ba_record *pBA)
31 {
32 pBA->bValid = false;
33 del_timer_sync(&pBA->Timer);
34 }
35
TxTsDeleteBA(struct rtllib_device * ieee,struct tx_ts_record * pTxTs)36 static u8 TxTsDeleteBA(struct rtllib_device *ieee, struct tx_ts_record *pTxTs)
37 {
38 struct ba_record *pAdmittedBa = &pTxTs->TxAdmittedBARecord;
39 struct ba_record *pPendingBa = &pTxTs->TxPendingBARecord;
40 u8 bSendDELBA = false;
41
42 if (pPendingBa->bValid) {
43 DeActivateBAEntry(ieee, pPendingBa);
44 bSendDELBA = true;
45 }
46
47 if (pAdmittedBa->bValid) {
48 DeActivateBAEntry(ieee, pAdmittedBa);
49 bSendDELBA = true;
50 }
51 return bSendDELBA;
52 }
53
RxTsDeleteBA(struct rtllib_device * ieee,struct rx_ts_record * pRxTs)54 static u8 RxTsDeleteBA(struct rtllib_device *ieee, struct rx_ts_record *pRxTs)
55 {
56 struct ba_record *pBa = &pRxTs->RxAdmittedBARecord;
57 u8 bSendDELBA = false;
58
59 if (pBa->bValid) {
60 DeActivateBAEntry(ieee, pBa);
61 bSendDELBA = true;
62 }
63
64 return bSendDELBA;
65 }
66
ResetBaEntry(struct ba_record * pBA)67 void ResetBaEntry(struct ba_record *pBA)
68 {
69 pBA->bValid = false;
70 pBA->BaParamSet.shortData = 0;
71 pBA->BaTimeoutValue = 0;
72 pBA->DialogToken = 0;
73 pBA->BaStartSeqCtrl.ShortData = 0;
74 }
rtllib_ADDBA(struct rtllib_device * ieee,u8 * Dst,struct ba_record * pBA,u16 StatusCode,u8 type)75 static struct sk_buff *rtllib_ADDBA(struct rtllib_device *ieee, u8 *Dst,
76 struct ba_record *pBA,
77 u16 StatusCode, u8 type)
78 {
79 struct sk_buff *skb = NULL;
80 struct rtllib_hdr_3addr *BAReq = NULL;
81 u8 *tag = NULL;
82 u16 tmp = 0;
83 u16 len = ieee->tx_headroom + 9;
84
85 RTLLIB_DEBUG(RTLLIB_DL_TRACE | RTLLIB_DL_BA, "========>%s(), frame(%d)"
86 " sentd to: %pM, ieee->dev:%p\n", __func__,
87 type, Dst, ieee->dev);
88 if (pBA == NULL) {
89 RTLLIB_DEBUG(RTLLIB_DL_ERR, "pBA is NULL\n");
90 return NULL;
91 }
92 skb = dev_alloc_skb(len + sizeof(struct rtllib_hdr_3addr));
93 if (skb == NULL) {
94 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc skb for ADDBA_REQ\n");
95 return NULL;
96 }
97
98 memset(skb->data, 0, sizeof(struct rtllib_hdr_3addr));
99
100 skb_reserve(skb, ieee->tx_headroom);
101
102 BAReq = (struct rtllib_hdr_3addr *)skb_put(skb,
103 sizeof(struct rtllib_hdr_3addr));
104
105 memcpy(BAReq->addr1, Dst, ETH_ALEN);
106 memcpy(BAReq->addr2, ieee->dev->dev_addr, ETH_ALEN);
107
108 memcpy(BAReq->addr3, ieee->current_network.bssid, ETH_ALEN);
109 BAReq->frame_ctl = cpu_to_le16(RTLLIB_STYPE_MANAGE_ACT);
110
111 tag = (u8 *)skb_put(skb, 9);
112 *tag ++= ACT_CAT_BA;
113 *tag ++= type;
114 *tag ++= pBA->DialogToken;
115
116 if (ACT_ADDBARSP == type) {
117 RT_TRACE(COMP_DBG, "====>to send ADDBARSP\n");
118 tmp = cpu_to_le16(StatusCode);
119 memcpy(tag, (u8 *)&tmp, 2);
120 tag += 2;
121 }
122 tmp = cpu_to_le16(pBA->BaParamSet.shortData);
123 memcpy(tag, (u8 *)&tmp, 2);
124 tag += 2;
125 tmp = cpu_to_le16(pBA->BaTimeoutValue);
126 memcpy(tag, (u8 *)&tmp, 2);
127 tag += 2;
128
129 if (ACT_ADDBAREQ == type) {
130 memcpy(tag, (u8 *)&(pBA->BaStartSeqCtrl), 2);
131 tag += 2;
132 }
133
134 RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA|RTLLIB_DL_BA, skb->data, skb->len);
135 return skb;
136 }
137
rtllib_DELBA(struct rtllib_device * ieee,u8 * dst,struct ba_record * pBA,enum tr_select TxRxSelect,u16 ReasonCode)138 static struct sk_buff *rtllib_DELBA(struct rtllib_device *ieee, u8 *dst,
139 struct ba_record *pBA,
140 enum tr_select TxRxSelect, u16 ReasonCode)
141 {
142 union delba_param_set DelbaParamSet;
143 struct sk_buff *skb = NULL;
144 struct rtllib_hdr_3addr *Delba = NULL;
145 u8 *tag = NULL;
146 u16 tmp = 0;
147 u16 len = 6 + ieee->tx_headroom;
148
149 if (net_ratelimit())
150 RTLLIB_DEBUG(RTLLIB_DL_TRACE | RTLLIB_DL_BA,
151 "========>%s(), Reason"
152 "Code(%d) sentd to: %pM\n", __func__,
153 ReasonCode, dst);
154
155 memset(&DelbaParamSet, 0, 2);
156
157 DelbaParamSet.field.Initiator = (TxRxSelect == TX_DIR) ? 1 : 0;
158 DelbaParamSet.field.TID = pBA->BaParamSet.field.TID;
159
160 skb = dev_alloc_skb(len + sizeof(struct rtllib_hdr_3addr));
161 if (skb == NULL) {
162 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc skb for ADDBA_REQ\n");
163 return NULL;
164 }
165
166 skb_reserve(skb, ieee->tx_headroom);
167
168 Delba = (struct rtllib_hdr_3addr *) skb_put(skb,
169 sizeof(struct rtllib_hdr_3addr));
170
171 memcpy(Delba->addr1, dst, ETH_ALEN);
172 memcpy(Delba->addr2, ieee->dev->dev_addr, ETH_ALEN);
173 memcpy(Delba->addr3, ieee->current_network.bssid, ETH_ALEN);
174 Delba->frame_ctl = cpu_to_le16(RTLLIB_STYPE_MANAGE_ACT);
175
176 tag = (u8 *)skb_put(skb, 6);
177
178 *tag ++= ACT_CAT_BA;
179 *tag ++= ACT_DELBA;
180
181 tmp = cpu_to_le16(DelbaParamSet.shortData);
182 memcpy(tag, (u8 *)&tmp, 2);
183 tag += 2;
184 tmp = cpu_to_le16(ReasonCode);
185 memcpy(tag, (u8 *)&tmp, 2);
186 tag += 2;
187
188 RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA|RTLLIB_DL_BA, skb->data, skb->len);
189 if (net_ratelimit())
190 RTLLIB_DEBUG(RTLLIB_DL_TRACE | RTLLIB_DL_BA, "<=====%s()\n",
191 __func__);
192 return skb;
193 }
194
rtllib_send_ADDBAReq(struct rtllib_device * ieee,u8 * dst,struct ba_record * pBA)195 static void rtllib_send_ADDBAReq(struct rtllib_device *ieee, u8 *dst,
196 struct ba_record *pBA)
197 {
198 struct sk_buff *skb = NULL;
199 skb = rtllib_ADDBA(ieee, dst, pBA, 0, ACT_ADDBAREQ);
200
201 if (skb) {
202 RT_TRACE(COMP_DBG, "====>to send ADDBAREQ!!!!!\n");
203 softmac_mgmt_xmit(skb, ieee);
204 } else {
205 RTLLIB_DEBUG(RTLLIB_DL_ERR, "alloc skb error in function"
206 " %s()\n", __func__);
207 }
208 return;
209 }
210
rtllib_send_ADDBARsp(struct rtllib_device * ieee,u8 * dst,struct ba_record * pBA,u16 StatusCode)211 static void rtllib_send_ADDBARsp(struct rtllib_device *ieee, u8 *dst,
212 struct ba_record *pBA, u16 StatusCode)
213 {
214 struct sk_buff *skb = NULL;
215 skb = rtllib_ADDBA(ieee, dst, pBA, StatusCode, ACT_ADDBARSP);
216 if (skb)
217 softmac_mgmt_xmit(skb, ieee);
218 else
219 RTLLIB_DEBUG(RTLLIB_DL_ERR, "alloc skb error in function"
220 " %s()\n", __func__);
221 return;
222 }
223
rtllib_send_DELBA(struct rtllib_device * ieee,u8 * dst,struct ba_record * pBA,enum tr_select TxRxSelect,u16 ReasonCode)224 static void rtllib_send_DELBA(struct rtllib_device *ieee, u8 *dst,
225 struct ba_record *pBA, enum tr_select TxRxSelect,
226 u16 ReasonCode)
227 {
228 struct sk_buff *skb = NULL;
229 skb = rtllib_DELBA(ieee, dst, pBA, TxRxSelect, ReasonCode);
230 if (skb)
231 softmac_mgmt_xmit(skb, ieee);
232 else
233 RTLLIB_DEBUG(RTLLIB_DL_ERR, "alloc skb error in func"
234 "tion %s()\n", __func__);
235 return ;
236 }
237
rtllib_rx_ADDBAReq(struct rtllib_device * ieee,struct sk_buff * skb)238 int rtllib_rx_ADDBAReq(struct rtllib_device *ieee, struct sk_buff *skb)
239 {
240 struct rtllib_hdr_3addr *req = NULL;
241 u16 rc = 0;
242 u8 *dst = NULL, *pDialogToken = NULL, *tag = NULL;
243 struct ba_record *pBA = NULL;
244 union ba_param_set *pBaParamSet = NULL;
245 u16 *pBaTimeoutVal = NULL;
246 union sequence_control *pBaStartSeqCtrl = NULL;
247 struct rx_ts_record *pTS = NULL;
248
249 if (skb->len < sizeof(struct rtllib_hdr_3addr) + 9) {
250 RTLLIB_DEBUG(RTLLIB_DL_ERR, " Invalid skb len in BAREQ(%d / "
251 "%d)\n", (int)skb->len,
252 (int)(sizeof(struct rtllib_hdr_3addr) + 9));
253 return -1;
254 }
255
256 RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA|RTLLIB_DL_BA, skb->data, skb->len);
257
258 req = (struct rtllib_hdr_3addr *) skb->data;
259 tag = (u8 *)req;
260 dst = (u8 *)(&req->addr2[0]);
261 tag += sizeof(struct rtllib_hdr_3addr);
262 pDialogToken = tag + 2;
263 pBaParamSet = (union ba_param_set *)(tag + 3);
264 pBaTimeoutVal = (u16 *)(tag + 5);
265 pBaStartSeqCtrl = (union sequence_control *)(req + 7);
266
267 RT_TRACE(COMP_DBG, "====>rx ADDBAREQ from : %pM\n", dst);
268 if (ieee->current_network.qos_data.active == 0 ||
269 (ieee->pHTInfo->bCurrentHTSupport == false) ||
270 (ieee->pHTInfo->IOTAction & HT_IOT_ACT_REJECT_ADDBA_REQ)) {
271 rc = ADDBA_STATUS_REFUSED;
272 RTLLIB_DEBUG(RTLLIB_DL_ERR, "Failed to reply on ADDBA_REQ as "
273 "some capability is not ready(%d, %d)\n",
274 ieee->current_network.qos_data.active,
275 ieee->pHTInfo->bCurrentHTSupport);
276 goto OnADDBAReq_Fail;
277 }
278 if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst,
279 (u8)(pBaParamSet->field.TID), RX_DIR, true)) {
280 rc = ADDBA_STATUS_REFUSED;
281 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't get TS in %s()\n", __func__);
282 goto OnADDBAReq_Fail;
283 }
284 pBA = &pTS->RxAdmittedBARecord;
285
286 if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED) {
287 rc = ADDBA_STATUS_INVALID_PARAM;
288 RTLLIB_DEBUG(RTLLIB_DL_ERR, "BA Policy is not correct in "
289 "%s()\n", __func__);
290 goto OnADDBAReq_Fail;
291 }
292
293 rtllib_FlushRxTsPendingPkts(ieee, pTS);
294
295 DeActivateBAEntry(ieee, pBA);
296 pBA->DialogToken = *pDialogToken;
297 pBA->BaParamSet = *pBaParamSet;
298 pBA->BaTimeoutValue = *pBaTimeoutVal;
299 pBA->BaStartSeqCtrl = *pBaStartSeqCtrl;
300
301 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev) ||
302 (ieee->pHTInfo->IOTAction & HT_IOT_ACT_ALLOW_PEER_AGG_ONE_PKT))
303 pBA->BaParamSet.field.BufferSize = 1;
304 else
305 pBA->BaParamSet.field.BufferSize = 32;
306
307 ActivateBAEntry(ieee, pBA, 0);
308 rtllib_send_ADDBARsp(ieee, dst, pBA, ADDBA_STATUS_SUCCESS);
309
310 return 0;
311
312 OnADDBAReq_Fail:
313 {
314 struct ba_record BA;
315 BA.BaParamSet = *pBaParamSet;
316 BA.BaTimeoutValue = *pBaTimeoutVal;
317 BA.DialogToken = *pDialogToken;
318 BA.BaParamSet.field.BAPolicy = BA_POLICY_IMMEDIATE;
319 rtllib_send_ADDBARsp(ieee, dst, &BA, rc);
320 return 0;
321 }
322 }
323
rtllib_rx_ADDBARsp(struct rtllib_device * ieee,struct sk_buff * skb)324 int rtllib_rx_ADDBARsp(struct rtllib_device *ieee, struct sk_buff *skb)
325 {
326 struct rtllib_hdr_3addr *rsp = NULL;
327 struct ba_record *pPendingBA, *pAdmittedBA;
328 struct tx_ts_record *pTS = NULL;
329 u8 *dst = NULL, *pDialogToken = NULL, *tag = NULL;
330 u16 *pStatusCode = NULL, *pBaTimeoutVal = NULL;
331 union ba_param_set *pBaParamSet = NULL;
332 u16 ReasonCode;
333
334 if (skb->len < sizeof(struct rtllib_hdr_3addr) + 9) {
335 RTLLIB_DEBUG(RTLLIB_DL_ERR, " Invalid skb len in BARSP(%d / "
336 "%d)\n", (int)skb->len,
337 (int)(sizeof(struct rtllib_hdr_3addr) + 9));
338 return -1;
339 }
340 rsp = (struct rtllib_hdr_3addr *)skb->data;
341 tag = (u8 *)rsp;
342 dst = (u8 *)(&rsp->addr2[0]);
343 tag += sizeof(struct rtllib_hdr_3addr);
344 pDialogToken = tag + 2;
345 pStatusCode = (u16 *)(tag + 3);
346 pBaParamSet = (union ba_param_set *)(tag + 5);
347 pBaTimeoutVal = (u16 *)(tag + 7);
348
349 RT_TRACE(COMP_DBG, "====>rx ADDBARSP from : %pM\n", dst);
350 if (ieee->current_network.qos_data.active == 0 ||
351 ieee->pHTInfo->bCurrentHTSupport == false ||
352 ieee->pHTInfo->bCurrentAMPDUEnable == false) {
353 RTLLIB_DEBUG(RTLLIB_DL_ERR, "reject to ADDBA_RSP as some capab"
354 "ility is not ready(%d, %d, %d)\n",
355 ieee->current_network.qos_data.active,
356 ieee->pHTInfo->bCurrentHTSupport,
357 ieee->pHTInfo->bCurrentAMPDUEnable);
358 ReasonCode = DELBA_REASON_UNKNOWN_BA;
359 goto OnADDBARsp_Reject;
360 }
361
362
363 if (!GetTs(ieee, (struct ts_common_info **)(&pTS), dst,
364 (u8)(pBaParamSet->field.TID), TX_DIR, false)) {
365 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't get TS in %s()\n", __func__);
366 ReasonCode = DELBA_REASON_UNKNOWN_BA;
367 goto OnADDBARsp_Reject;
368 }
369
370 pTS->bAddBaReqInProgress = false;
371 pPendingBA = &pTS->TxPendingBARecord;
372 pAdmittedBA = &pTS->TxAdmittedBARecord;
373
374
375 if ((pAdmittedBA->bValid == true)) {
376 RTLLIB_DEBUG(RTLLIB_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp."
377 " Drop because already admit it!\n");
378 return -1;
379 } else if ((pPendingBA->bValid == false) ||
380 (*pDialogToken != pPendingBA->DialogToken)) {
381 RTLLIB_DEBUG(RTLLIB_DL_ERR, "OnADDBARsp(): Recv ADDBA Rsp. "
382 "BA invalid, DELBA!\n");
383 ReasonCode = DELBA_REASON_UNKNOWN_BA;
384 goto OnADDBARsp_Reject;
385 } else {
386 RTLLIB_DEBUG(RTLLIB_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. BA "
387 "is admitted! Status code:%X\n", *pStatusCode);
388 DeActivateBAEntry(ieee, pPendingBA);
389 }
390
391
392 if (*pStatusCode == ADDBA_STATUS_SUCCESS) {
393 if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED) {
394 pTS->bAddBaReqDelayed = true;
395 DeActivateBAEntry(ieee, pAdmittedBA);
396 ReasonCode = DELBA_REASON_END_BA;
397 goto OnADDBARsp_Reject;
398 }
399
400
401 pAdmittedBA->DialogToken = *pDialogToken;
402 pAdmittedBA->BaTimeoutValue = *pBaTimeoutVal;
403 pAdmittedBA->BaStartSeqCtrl = pPendingBA->BaStartSeqCtrl;
404 pAdmittedBA->BaParamSet = *pBaParamSet;
405 DeActivateBAEntry(ieee, pAdmittedBA);
406 ActivateBAEntry(ieee, pAdmittedBA, *pBaTimeoutVal);
407 } else {
408 pTS->bAddBaReqDelayed = true;
409 pTS->bDisable_AddBa = true;
410 ReasonCode = DELBA_REASON_END_BA;
411 goto OnADDBARsp_Reject;
412 }
413
414 return 0;
415
416 OnADDBARsp_Reject:
417 {
418 struct ba_record BA;
419 BA.BaParamSet = *pBaParamSet;
420 rtllib_send_DELBA(ieee, dst, &BA, TX_DIR, ReasonCode);
421 return 0;
422 }
423 }
424
rtllib_rx_DELBA(struct rtllib_device * ieee,struct sk_buff * skb)425 int rtllib_rx_DELBA(struct rtllib_device *ieee, struct sk_buff *skb)
426 {
427 struct rtllib_hdr_3addr *delba = NULL;
428 union delba_param_set *pDelBaParamSet = NULL;
429 u16 *pReasonCode = NULL;
430 u8 *dst = NULL;
431
432 if (skb->len < sizeof(struct rtllib_hdr_3addr) + 6) {
433 RTLLIB_DEBUG(RTLLIB_DL_ERR, " Invalid skb len in DELBA(%d /"
434 " %d)\n", (int)skb->len,
435 (int)(sizeof(struct rtllib_hdr_3addr) + 6));
436 return -1;
437 }
438
439 if (ieee->current_network.qos_data.active == 0 ||
440 ieee->pHTInfo->bCurrentHTSupport == false) {
441 RTLLIB_DEBUG(RTLLIB_DL_ERR, "received DELBA while QOS or HT "
442 "is not supported(%d, %d)\n",
443 ieee->current_network. qos_data.active,
444 ieee->pHTInfo->bCurrentHTSupport);
445 return -1;
446 }
447
448 RTLLIB_DEBUG_DATA(RTLLIB_DL_DATA|RTLLIB_DL_BA, skb->data, skb->len);
449 delba = (struct rtllib_hdr_3addr *)skb->data;
450 dst = (u8 *)(&delba->addr2[0]);
451 delba += sizeof(struct rtllib_hdr_3addr);
452 pDelBaParamSet = (union delba_param_set *)(delba+2);
453 pReasonCode = (u16 *)(delba+4);
454
455 if (pDelBaParamSet->field.Initiator == 1) {
456 struct rx_ts_record *pRxTs;
457
458 if (!GetTs(ieee, (struct ts_common_info **)&pRxTs, dst,
459 (u8)pDelBaParamSet->field.TID, RX_DIR, false)) {
460 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't get TS for RXTS in "
461 "%s().dst: %pM TID:%d\n", __func__, dst,
462 (u8)pDelBaParamSet->field.TID);
463 return -1;
464 }
465
466 RxTsDeleteBA(ieee, pRxTs);
467 } else {
468 struct tx_ts_record *pTxTs;
469
470 if (!GetTs(ieee, (struct ts_common_info **)&pTxTs, dst,
471 (u8)pDelBaParamSet->field.TID, TX_DIR, false)) {
472 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't get TS for TXTS in "
473 "%s()\n", __func__);
474 return -1;
475 }
476
477 pTxTs->bUsingBa = false;
478 pTxTs->bAddBaReqInProgress = false;
479 pTxTs->bAddBaReqDelayed = false;
480 del_timer_sync(&pTxTs->TsAddBaTimer);
481 TxTsDeleteBA(ieee, pTxTs);
482 }
483 return 0;
484 }
485
TsInitAddBA(struct rtllib_device * ieee,struct tx_ts_record * pTS,u8 Policy,u8 bOverwritePending)486 void TsInitAddBA(struct rtllib_device *ieee, struct tx_ts_record *pTS,
487 u8 Policy, u8 bOverwritePending)
488 {
489 struct ba_record *pBA = &pTS->TxPendingBARecord;
490
491 if (pBA->bValid == true && bOverwritePending == false)
492 return;
493
494 DeActivateBAEntry(ieee, pBA);
495
496 pBA->DialogToken++;
497 pBA->BaParamSet.field.AMSDU_Support = 0;
498 pBA->BaParamSet.field.BAPolicy = Policy;
499 pBA->BaParamSet.field.TID =
500 pTS->TsCommonInfo.TSpec.f.TSInfo.field.ucTSID;
501 pBA->BaParamSet.field.BufferSize = 32;
502 pBA->BaTimeoutValue = 0;
503 pBA->BaStartSeqCtrl.field.SeqNum = (pTS->TxCurSeq + 3) % 4096;
504
505 ActivateBAEntry(ieee, pBA, BA_SETUP_TIMEOUT);
506
507 rtllib_send_ADDBAReq(ieee, pTS->TsCommonInfo.Addr, pBA);
508 }
509
TsInitDelBA(struct rtllib_device * ieee,struct ts_common_info * pTsCommonInfo,enum tr_select TxRxSelect)510 void TsInitDelBA(struct rtllib_device *ieee,
511 struct ts_common_info *pTsCommonInfo,
512 enum tr_select TxRxSelect)
513 {
514 if (TxRxSelect == TX_DIR) {
515 struct tx_ts_record *pTxTs =
516 (struct tx_ts_record *)pTsCommonInfo;
517
518 if (TxTsDeleteBA(ieee, pTxTs))
519 rtllib_send_DELBA(ieee, pTsCommonInfo->Addr,
520 (pTxTs->TxAdmittedBARecord.bValid) ?
521 (&pTxTs->TxAdmittedBARecord) :
522 (&pTxTs->TxPendingBARecord),
523 TxRxSelect, DELBA_REASON_END_BA);
524 } else if (TxRxSelect == RX_DIR) {
525 struct rx_ts_record *pRxTs =
526 (struct rx_ts_record *)pTsCommonInfo;
527 if (RxTsDeleteBA(ieee, pRxTs))
528 rtllib_send_DELBA(ieee, pTsCommonInfo->Addr,
529 &pRxTs->RxAdmittedBARecord,
530 TxRxSelect, DELBA_REASON_END_BA);
531 }
532 }
533
BaSetupTimeOut(unsigned long data)534 void BaSetupTimeOut(unsigned long data)
535 {
536 struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
537
538 pTxTs->bAddBaReqInProgress = false;
539 pTxTs->bAddBaReqDelayed = true;
540 pTxTs->TxPendingBARecord.bValid = false;
541 }
542
TxBaInactTimeout(unsigned long data)543 void TxBaInactTimeout(unsigned long data)
544 {
545 struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
546 struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
547 TxTsRecord[pTxTs->num]);
548 TxTsDeleteBA(ieee, pTxTs);
549 rtllib_send_DELBA(ieee, pTxTs->TsCommonInfo.Addr,
550 &pTxTs->TxAdmittedBARecord, TX_DIR,
551 DELBA_REASON_TIMEOUT);
552 }
553
RxBaInactTimeout(unsigned long data)554 void RxBaInactTimeout(unsigned long data)
555 {
556 struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
557 struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
558 RxTsRecord[pRxTs->num]);
559
560 RxTsDeleteBA(ieee, pRxTs);
561 rtllib_send_DELBA(ieee, pRxTs->TsCommonInfo.Addr,
562 &pRxTs->RxAdmittedBARecord, RX_DIR,
563 DELBA_REASON_TIMEOUT);
564 return ;
565 }
566