1 // SPDX-License-Identifier: GPL-2.0
2 /********************************************************************************************************************************
3 * This file is created to process BA Action Frame. According to 802.11 spec, there are 3 BA action types at all. And as BA is
4 * related to TS, this part need some structure defined in QOS side code. Also TX RX is going to be resturctured, so how to send
5 * ADDBAREQ ADDBARSP and DELBA packet is still on consideration. Temporarily use MANAGE QUEUE instead of Normal Queue.
7 * *****************************************************************************************************************************/
8 #include <asm/byteorder.h>
9 #include <asm/unaligned.h>
10 #include "ieee80211.h"
11 #include "rtl819x_BA.h"
13 /********************************************************************************************************************
14 *function: Activate BA entry. And if Time is nozero, start timer.
15 * input: PBA_RECORD pBA //BA entry to be enabled
16 * u16 Time //indicate time delay.
18 ********************************************************************************************************************/
19 static void ActivateBAEntry(struct ieee80211_device *ieee, PBA_RECORD pBA, u16 Time)
23 mod_timer(&pBA->Timer, jiffies + msecs_to_jiffies(Time));
26 /********************************************************************************************************************
27 *function: deactivate BA entry, including its timer.
28 * input: PBA_RECORD pBA //BA entry to be disabled
30 ********************************************************************************************************************/
31 static void DeActivateBAEntry(struct ieee80211_device *ieee, PBA_RECORD pBA)
34 del_timer_sync(&pBA->Timer);
36 /********************************************************************************************************************
37 *function: deactivete BA entry in Tx Ts, and send DELBA.
39 * PTX_TS_RECORD pTxTs //Tx Ts which is to deactivate BA entry.
41 * notice: As PTX_TS_RECORD structure will be defined in QOS, so wait to be merged. //FIXME
42 ********************************************************************************************************************/
43 static u8 TxTsDeleteBA(struct ieee80211_device *ieee, PTX_TS_RECORD pTxTs)
45 PBA_RECORD pAdmittedBa = &pTxTs->TxAdmittedBARecord; //These two BA entries must exist in TS structure
46 PBA_RECORD pPendingBa = &pTxTs->TxPendingBARecord;
47 u8 bSendDELBA = false;
50 if (pPendingBa->bValid) {
51 DeActivateBAEntry(ieee, pPendingBa);
56 if (pAdmittedBa->bValid) {
57 DeActivateBAEntry(ieee, pAdmittedBa);
64 /********************************************************************************************************************
65 *function: deactivete BA entry in Tx Ts, and send DELBA.
67 * PRX_TS_RECORD pRxTs //Rx Ts which is to deactivate BA entry.
69 * notice: As PRX_TS_RECORD structure will be defined in QOS, so wait to be merged. //FIXME, same with above
70 ********************************************************************************************************************/
71 static u8 RxTsDeleteBA(struct ieee80211_device *ieee, PRX_TS_RECORD pRxTs)
73 PBA_RECORD pBa = &pRxTs->RxAdmittedBARecord;
74 u8 bSendDELBA = false;
77 DeActivateBAEntry(ieee, pBa);
84 /********************************************************************************************************************
85 *function: reset BA entry
87 * PBA_RECORD pBA //entry to be reset
89 ********************************************************************************************************************/
90 void ResetBaEntry(PBA_RECORD pBA)
93 pBA->BaParamSet.shortData = 0;
94 pBA->BaTimeoutValue = 0;
96 pBA->BaStartSeqCtrl.ShortData = 0;
98 //These functions need porting here or not?
99 /*******************************************************************************************************************************
100 *function: construct ADDBAREQ and ADDBARSP frame here together.
101 * input: u8* Dst //ADDBA frame's destination
102 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA.
103 * u16 StatusCode //status code in RSP and I will use it to indicate whether it's RSP or REQ(will I?)
104 * u8 type //indicate whether it's RSP(ACT_ADDBARSP) ow REQ(ACT_ADDBAREQ)
106 * return: sk_buff* skb //return constructed skb to xmit
107 *******************************************************************************************************************************/
108 static struct sk_buff *ieee80211_ADDBA(struct ieee80211_device *ieee, u8 *Dst, PBA_RECORD pBA, u16 StatusCode, u8 type)
110 struct sk_buff *skb = NULL;
111 struct rtl_80211_hdr_3addr *BAReq = NULL;
113 u16 len = ieee->tx_headroom + 9;
114 //category(1) + action field(1) + Dialog Token(1) + BA Parameter Set(2) + BA Timeout Value(2) + BA Start SeqCtrl(2)(or StatusCode(2))
115 IEEE80211_DEBUG(IEEE80211_DL_TRACE | IEEE80211_DL_BA, "========>%s(), frame(%d) sentd to:%pM, ieee->dev:%p\n", __func__, type, Dst, ieee->dev);
117 IEEE80211_DEBUG(IEEE80211_DL_ERR, "pBA is NULL\n");
120 skb = dev_alloc_skb(len + sizeof( struct rtl_80211_hdr_3addr)); //need to add something others? FIXME
122 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc skb for ADDBA_REQ\n");
126 memset(skb->data, 0, sizeof( struct rtl_80211_hdr_3addr)); //I wonder whether it's necessary. Apparently kernel will not do it when alloc a skb.
127 skb_reserve(skb, ieee->tx_headroom);
129 BAReq = skb_put(skb, sizeof(struct rtl_80211_hdr_3addr));
131 memcpy(BAReq->addr1, Dst, ETH_ALEN);
132 memcpy(BAReq->addr2, ieee->dev->dev_addr, ETH_ALEN);
134 memcpy(BAReq->addr3, ieee->current_network.bssid, ETH_ALEN);
136 BAReq->frame_ctl = cpu_to_le16(IEEE80211_STYPE_MANAGE_ACT); //action frame
138 //tag += sizeof( struct rtl_80211_hdr_3addr); //move to action field
139 tag = skb_put(skb, 9);
143 *tag ++= pBA->DialogToken;
145 if (ACT_ADDBARSP == type) {
147 printk(KERN_INFO "=====>to send ADDBARSP\n");
149 put_unaligned_le16(StatusCode, tag);
154 put_unaligned_le16(pBA->BaParamSet.shortData, tag);
158 put_unaligned_le16(pBA->BaTimeoutValue, tag);
161 if (ACT_ADDBAREQ == type) {
163 memcpy(tag, (u8 *)&(pBA->BaStartSeqCtrl), 2);
167 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len);
173 /********************************************************************************************************************
174 *function: construct DELBA frame
175 * input: u8* dst //DELBA frame's destination
176 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
177 * TR_SELECT TxRxSelect //TX RX direction
178 * u16 ReasonCode //status code.
180 * return: sk_buff* skb //return constructed skb to xmit
181 ********************************************************************************************************************/
182 static struct sk_buff *ieee80211_DELBA(
183 struct ieee80211_device *ieee,
186 TR_SELECT TxRxSelect,
190 DELBA_PARAM_SET DelbaParamSet;
191 struct sk_buff *skb = NULL;
192 struct rtl_80211_hdr_3addr *Delba = NULL;
194 //len = head len + DELBA Parameter Set(2) + Reason Code(2)
195 u16 len = 6 + ieee->tx_headroom;
198 IEEE80211_DEBUG(IEEE80211_DL_TRACE | IEEE80211_DL_BA, "========>%s(), ReasonCode(%d) sentd to:%pM\n", __func__, ReasonCode, dst);
200 memset(&DelbaParamSet, 0, 2);
202 DelbaParamSet.field.Initiator = (TxRxSelect==TX_DIR)?1:0;
203 DelbaParamSet.field.TID = pBA->BaParamSet.field.TID;
205 skb = dev_alloc_skb(len + sizeof( struct rtl_80211_hdr_3addr)); //need to add something others? FIXME
207 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't alloc skb for ADDBA_REQ\n");
210 // memset(skb->data, 0, len+sizeof( struct rtl_80211_hdr_3addr));
211 skb_reserve(skb, ieee->tx_headroom);
213 Delba = skb_put(skb, sizeof(struct rtl_80211_hdr_3addr));
215 memcpy(Delba->addr1, dst, ETH_ALEN);
216 memcpy(Delba->addr2, ieee->dev->dev_addr, ETH_ALEN);
217 memcpy(Delba->addr3, ieee->current_network.bssid, ETH_ALEN);
218 Delba->frame_ctl = cpu_to_le16(IEEE80211_STYPE_MANAGE_ACT); //action frame
220 tag = skb_put(skb, 6);
225 // DELBA Parameter Set
227 put_unaligned_le16(DelbaParamSet.shortData, tag);
231 put_unaligned_le16(ReasonCode, tag);
234 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len);
236 IEEE80211_DEBUG(IEEE80211_DL_TRACE | IEEE80211_DL_BA, "<=====%s()\n", __func__);
240 /********************************************************************************************************************
241 *function: send ADDBAReq frame out
242 * input: u8* dst //ADDBAReq frame's destination
243 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
245 * notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
246 ********************************************************************************************************************/
247 static void ieee80211_send_ADDBAReq(struct ieee80211_device *ieee,
248 u8 *dst, PBA_RECORD pBA)
251 skb = ieee80211_ADDBA(ieee, dst, pBA, 0, ACT_ADDBAREQ); //construct ACT_ADDBAREQ frames so set statuscode zero.
254 softmac_mgmt_xmit(skb, ieee);
255 //add statistic needed here.
256 //and skb will be freed in softmac_mgmt_xmit(), so omit all dev_kfree_skb_any() outside softmac_mgmt_xmit()
260 IEEE80211_DEBUG(IEEE80211_DL_ERR, "alloc skb error in function %s()\n", __func__);
264 /********************************************************************************************************************
265 *function: send ADDBARSP frame out
266 * input: u8* dst //DELBA frame's destination
267 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
268 * u16 StatusCode //RSP StatusCode
270 * notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
271 ********************************************************************************************************************/
272 static void ieee80211_send_ADDBARsp(struct ieee80211_device *ieee, u8 *dst,
273 PBA_RECORD pBA, u16 StatusCode)
276 skb = ieee80211_ADDBA(ieee, dst, pBA, StatusCode, ACT_ADDBARSP); //construct ACT_ADDBARSP frames
278 softmac_mgmt_xmit(skb, ieee);
282 IEEE80211_DEBUG(IEEE80211_DL_ERR, "alloc skb error in function %s()\n", __func__);
288 /********************************************************************************************************************
289 *function: send ADDBARSP frame out
290 * input: u8* dst //DELBA frame's destination
291 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
292 * TR_SELECT TxRxSelect //TX or RX
293 * u16 ReasonCode //DEL ReasonCode
295 * notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
296 ********************************************************************************************************************/
298 static void ieee80211_send_DELBA(struct ieee80211_device *ieee, u8 *dst,
299 PBA_RECORD pBA, TR_SELECT TxRxSelect,
303 skb = ieee80211_DELBA(ieee, dst, pBA, TxRxSelect, ReasonCode); //construct ACT_ADDBARSP frames
305 softmac_mgmt_xmit(skb, ieee);
309 IEEE80211_DEBUG(IEEE80211_DL_ERR, "alloc skb error in function %s()\n", __func__);
313 /********************************************************************************************************************
314 *function: RX ADDBAReq
315 * input: struct sk_buff * skb //incoming ADDBAReq skb.
316 * return: 0(pass), other(fail)
317 * notice: As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
318 ********************************************************************************************************************/
319 int ieee80211_rx_ADDBAReq(struct ieee80211_device *ieee, struct sk_buff *skb)
321 struct rtl_80211_hdr_3addr *req = NULL;
323 u8 *dst = NULL, *pDialogToken = NULL, *tag = NULL;
324 PBA_RECORD pBA = NULL;
325 PBA_PARAM_SET pBaParamSet = NULL;
326 u16 *pBaTimeoutVal = NULL;
327 PSEQUENCE_CONTROL pBaStartSeqCtrl = NULL;
328 PRX_TS_RECORD pTS = NULL;
330 if (skb->len < sizeof(struct rtl_80211_hdr_3addr) + 9) {
331 IEEE80211_DEBUG(IEEE80211_DL_ERR,
332 " Invalid skb len in BAREQ(%d / %zu)\n",
334 (sizeof(struct rtl_80211_hdr_3addr) + 9));
338 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len);
340 req = (struct rtl_80211_hdr_3addr *) skb->data;
342 dst = &req->addr2[0];
343 tag += sizeof(struct rtl_80211_hdr_3addr);
344 pDialogToken = tag + 2; //category+action
345 pBaParamSet = (PBA_PARAM_SET)(tag + 3); //+DialogToken
346 pBaTimeoutVal = (u16 *)(tag + 5);
347 pBaStartSeqCtrl = (PSEQUENCE_CONTROL)(req + 7);
349 printk(KERN_INFO "====================>rx ADDBAREQ from :%pM\n", dst);
350 //some other capability is not ready now.
351 if ((ieee->current_network.qos_data.active == 0) ||
352 (!ieee->pHTInfo->bCurrentHTSupport)) //||
353 // (!ieee->pStaQos->bEnableRxImmBA) )
355 rc = ADDBA_STATUS_REFUSED;
356 IEEE80211_DEBUG(IEEE80211_DL_ERR, "Failed to reply on ADDBA_REQ as some capability is not ready(%d, %d)\n", ieee->current_network.qos_data.active, ieee->pHTInfo->bCurrentHTSupport);
357 goto OnADDBAReq_Fail;
359 // Search for related traffic stream.
360 // If there is no matched TS, reject the ADDBA request.
363 (PTS_COMMON_INFO *)(&pTS),
365 (u8)(pBaParamSet->field.TID),
368 rc = ADDBA_STATUS_REFUSED;
369 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't get TS in %s()\n", __func__);
370 goto OnADDBAReq_Fail;
372 pBA = &pTS->RxAdmittedBARecord;
373 // To Determine the ADDBA Req content
374 // We can do much more check here, including BufferSize, AMSDU_Support, Policy, StartSeqCtrl...
375 // I want to check StartSeqCtrl to make sure when we start aggregation!!!
377 if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED) {
378 rc = ADDBA_STATUS_INVALID_PARAM;
379 IEEE80211_DEBUG(IEEE80211_DL_ERR, "BA Policy is not correct in %s()\n", __func__);
380 goto OnADDBAReq_Fail;
382 // Admit the ADDBA Request
384 DeActivateBAEntry(ieee, pBA);
385 pBA->DialogToken = *pDialogToken;
386 pBA->BaParamSet = *pBaParamSet;
387 pBA->BaTimeoutValue = *pBaTimeoutVal;
388 pBA->BaStartSeqCtrl = *pBaStartSeqCtrl;
389 //for half N mode we only aggregate 1 frame
390 if (ieee->GetHalfNmodeSupportByAPsHandler(ieee->dev))
391 pBA->BaParamSet.field.BufferSize = 1;
393 pBA->BaParamSet.field.BufferSize = 32;
394 ActivateBAEntry(ieee, pBA, pBA->BaTimeoutValue);
395 ieee80211_send_ADDBARsp(ieee, dst, pBA, ADDBA_STATUS_SUCCESS);
403 BA.BaParamSet = *pBaParamSet;
404 BA.BaTimeoutValue = *pBaTimeoutVal;
405 BA.DialogToken = *pDialogToken;
406 BA.BaParamSet.field.BAPolicy = BA_POLICY_IMMEDIATE;
407 ieee80211_send_ADDBARsp(ieee, dst, &BA, rc);
408 return 0; //we send RSP out.
413 /********************************************************************************************************************
414 *function: RX ADDBARSP
415 * input: struct sk_buff * skb //incoming ADDBAReq skb.
416 * return: 0(pass), other(fail)
417 * notice: As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
418 ********************************************************************************************************************/
419 int ieee80211_rx_ADDBARsp(struct ieee80211_device *ieee, struct sk_buff *skb)
421 struct rtl_80211_hdr_3addr *rsp = NULL;
422 PBA_RECORD pPendingBA, pAdmittedBA;
423 PTX_TS_RECORD pTS = NULL;
424 u8 *dst = NULL, *pDialogToken = NULL, *tag = NULL;
425 u16 *pStatusCode = NULL, *pBaTimeoutVal = NULL;
426 PBA_PARAM_SET pBaParamSet = NULL;
429 if (skb->len < sizeof(struct rtl_80211_hdr_3addr) + 9) {
430 IEEE80211_DEBUG(IEEE80211_DL_ERR,
431 " Invalid skb len in BARSP(%d / %zu)\n",
433 (sizeof(struct rtl_80211_hdr_3addr) + 9));
436 rsp = (struct rtl_80211_hdr_3addr *)skb->data;
438 dst = &rsp->addr2[0];
439 tag += sizeof(struct rtl_80211_hdr_3addr);
440 pDialogToken = tag + 2;
441 pStatusCode = (u16 *)(tag + 3);
442 pBaParamSet = (PBA_PARAM_SET)(tag + 5);
443 pBaTimeoutVal = (u16 *)(tag + 7);
445 // Check the capability
446 // Since we can always receive A-MPDU, we just check if it is under HT mode.
447 if (ieee->current_network.qos_data.active == 0 ||
448 !ieee->pHTInfo->bCurrentHTSupport ||
449 !ieee->pHTInfo->bCurrentAMPDUEnable) {
450 IEEE80211_DEBUG(IEEE80211_DL_ERR, "reject to ADDBA_RSP as some capability is not ready(%d, %d, %d)\n",ieee->current_network.qos_data.active, ieee->pHTInfo->bCurrentHTSupport, ieee->pHTInfo->bCurrentAMPDUEnable);
451 ReasonCode = DELBA_REASON_UNKNOWN_BA;
452 goto OnADDBARsp_Reject;
457 // Search for related TS.
458 // If there is no TS found, we wil reject ADDBA Rsp by sending DELBA frame.
462 (PTS_COMMON_INFO *)(&pTS),
464 (u8)(pBaParamSet->field.TID),
467 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't get TS in %s()\n", __func__);
468 ReasonCode = DELBA_REASON_UNKNOWN_BA;
469 goto OnADDBARsp_Reject;
472 pTS->bAddBaReqInProgress = false;
473 pPendingBA = &pTS->TxPendingBARecord;
474 pAdmittedBA = &pTS->TxAdmittedBARecord;
478 // Check if related BA is waiting for setup.
479 // If not, reject by sending DELBA frame.
481 if (pAdmittedBA->bValid) {
482 // Since BA is already setup, we ignore all other ADDBA Response.
483 IEEE80211_DEBUG(IEEE80211_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. Drop because already admit it! \n");
486 else if((!pPendingBA->bValid) ||(*pDialogToken != pPendingBA->DialogToken)) {
487 IEEE80211_DEBUG(IEEE80211_DL_ERR, "OnADDBARsp(): Recv ADDBA Rsp. BA invalid, DELBA! \n");
488 ReasonCode = DELBA_REASON_UNKNOWN_BA;
489 goto OnADDBARsp_Reject;
492 IEEE80211_DEBUG(IEEE80211_DL_BA, "OnADDBARsp(): Recv ADDBA Rsp. BA is admitted! Status code:%X\n", *pStatusCode);
493 DeActivateBAEntry(ieee, pPendingBA);
497 if(*pStatusCode == ADDBA_STATUS_SUCCESS) {
499 // Determine ADDBA Rsp content here.
500 // We can compare the value of BA parameter set that Peer returned and Self sent.
501 // If it is OK, then admitted. Or we can send DELBA to cancel BA mechanism.
503 if (pBaParamSet->field.BAPolicy == BA_POLICY_DELAYED) {
504 // Since this is a kind of ADDBA failed, we delay next ADDBA process.
505 pTS->bAddBaReqDelayed = true;
506 DeActivateBAEntry(ieee, pAdmittedBA);
507 ReasonCode = DELBA_REASON_END_BA;
508 goto OnADDBARsp_Reject;
513 // Admitted condition
515 pAdmittedBA->DialogToken = *pDialogToken;
516 pAdmittedBA->BaTimeoutValue = *pBaTimeoutVal;
517 pAdmittedBA->BaStartSeqCtrl = pPendingBA->BaStartSeqCtrl;
518 pAdmittedBA->BaParamSet = *pBaParamSet;
519 DeActivateBAEntry(ieee, pAdmittedBA);
520 ActivateBAEntry(ieee, pAdmittedBA, *pBaTimeoutVal);
523 // Delay next ADDBA process.
524 pTS->bAddBaReqDelayed = true;
533 BA.BaParamSet = *pBaParamSet;
534 ieee80211_send_DELBA(ieee, dst, &BA, TX_DIR, ReasonCode);
540 /********************************************************************************************************************
542 * input: struct sk_buff * skb //incoming ADDBAReq skb.
543 * return: 0(pass), other(fail)
544 * notice: As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
545 ********************************************************************************************************************/
546 int ieee80211_rx_DELBA(struct ieee80211_device *ieee, struct sk_buff *skb)
548 struct rtl_80211_hdr_3addr *delba = NULL;
549 PDELBA_PARAM_SET pDelBaParamSet = NULL;
552 if (skb->len < sizeof(struct rtl_80211_hdr_3addr) + 6) {
553 IEEE80211_DEBUG(IEEE80211_DL_ERR,
554 " Invalid skb len in DELBA(%d / %zu)\n",
556 (sizeof(struct rtl_80211_hdr_3addr) + 6));
560 if (ieee->current_network.qos_data.active == 0 ||
561 !ieee->pHTInfo->bCurrentHTSupport) {
562 IEEE80211_DEBUG(IEEE80211_DL_ERR, "received DELBA while QOS or HT is not supported(%d, %d)\n",ieee->current_network.qos_data.active, ieee->pHTInfo->bCurrentHTSupport);
566 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA|IEEE80211_DL_BA, skb->data, skb->len);
567 delba = (struct rtl_80211_hdr_3addr *)skb->data;
568 dst = &delba->addr2[0];
569 pDelBaParamSet = (PDELBA_PARAM_SET)&delba->payload[2];
571 if(pDelBaParamSet->field.Initiator == 1) {
576 (PTS_COMMON_INFO *)&pRxTs,
578 (u8)pDelBaParamSet->field.TID,
581 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't get TS for RXTS in %s()\n", __func__);
585 RxTsDeleteBA(ieee, pRxTs);
592 (PTS_COMMON_INFO *)&pTxTs,
594 (u8)pDelBaParamSet->field.TID,
597 IEEE80211_DEBUG(IEEE80211_DL_ERR, "can't get TS for TXTS in %s()\n", __func__);
601 pTxTs->bUsingBa = false;
602 pTxTs->bAddBaReqInProgress = false;
603 pTxTs->bAddBaReqDelayed = false;
604 del_timer_sync(&pTxTs->TsAddBaTimer);
605 //PlatformCancelTimer(Adapter, &pTxTs->TsAddBaTimer);
606 TxTsDeleteBA(ieee, pTxTs);
612 // ADDBA initiate. This can only be called by TX side.
616 struct ieee80211_device *ieee,
622 PBA_RECORD pBA = &pTS->TxPendingBARecord;
624 if (pBA->bValid && !bOverwritePending)
627 // Set parameters to "Pending" variable set
628 DeActivateBAEntry(ieee, pBA);
630 pBA->DialogToken++; // DialogToken: Only keep the latest dialog token
631 pBA->BaParamSet.field.AMSDU_Support = 0; // Do not support A-MSDU with A-MPDU now!!
632 pBA->BaParamSet.field.BAPolicy = Policy; // Policy: Delayed or Immediate
633 pBA->BaParamSet.field.TID = pTS->TsCommonInfo.TSpec.f.TSInfo.field.ucTSID; // TID
634 // BufferSize: This need to be set according to A-MPDU vector
635 pBA->BaParamSet.field.BufferSize = 32; // BufferSize: This need to be set according to A-MPDU vector
636 pBA->BaTimeoutValue = 0; // Timeout value: Set 0 to disable Timer
637 pBA->BaStartSeqCtrl.field.SeqNum = (pTS->TxCurSeq + 3) % 4096; // Block Ack will start after 3 packets later.
639 ActivateBAEntry(ieee, pBA, BA_SETUP_TIMEOUT);
641 ieee80211_send_ADDBAReq(ieee, pTS->TsCommonInfo.Addr, pBA);
645 TsInitDelBA( struct ieee80211_device *ieee, PTS_COMMON_INFO pTsCommonInfo, TR_SELECT TxRxSelect)
648 if(TxRxSelect == TX_DIR) {
649 PTX_TS_RECORD pTxTs = (PTX_TS_RECORD)pTsCommonInfo;
651 if(TxTsDeleteBA(ieee, pTxTs))
652 ieee80211_send_DELBA(
655 (pTxTs->TxAdmittedBARecord.bValid)?(&pTxTs->TxAdmittedBARecord):(&pTxTs->TxPendingBARecord),
657 DELBA_REASON_END_BA);
659 else if(TxRxSelect == RX_DIR) {
660 PRX_TS_RECORD pRxTs = (PRX_TS_RECORD)pTsCommonInfo;
661 if(RxTsDeleteBA(ieee, pRxTs))
662 ieee80211_send_DELBA(
665 &pRxTs->RxAdmittedBARecord,
667 DELBA_REASON_END_BA );
670 /********************************************************************************************************************
671 *function: BA setup timer
672 * input: unsigned long data //acturally we send TX_TS_RECORD or RX_TS_RECORD to these timer
675 ********************************************************************************************************************/
676 void BaSetupTimeOut(unsigned long data)
678 PTX_TS_RECORD pTxTs = (PTX_TS_RECORD)data;
680 pTxTs->bAddBaReqInProgress = false;
681 pTxTs->bAddBaReqDelayed = true;
682 pTxTs->TxPendingBARecord.bValid = false;
685 void TxBaInactTimeout(unsigned long data)
687 PTX_TS_RECORD pTxTs = (PTX_TS_RECORD)data;
688 struct ieee80211_device *ieee = container_of(pTxTs, struct ieee80211_device, TxTsRecord[pTxTs->num]);
689 TxTsDeleteBA(ieee, pTxTs);
690 ieee80211_send_DELBA(
692 pTxTs->TsCommonInfo.Addr,
693 &pTxTs->TxAdmittedBARecord,
695 DELBA_REASON_TIMEOUT);
698 void RxBaInactTimeout(unsigned long data)
700 PRX_TS_RECORD pRxTs = (PRX_TS_RECORD)data;
701 struct ieee80211_device *ieee = container_of(pRxTs, struct ieee80211_device, RxTsRecord[pRxTs->num]);
703 RxTsDeleteBA(ieee, pRxTs);
704 ieee80211_send_DELBA(
706 pRxTs->TsCommonInfo.Addr,
707 &pRxTs->RxAdmittedBARecord,
709 DELBA_REASON_TIMEOUT);