2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21 * Purpose: Handles the Basic Service Set & Node Database functions
24 * BSSpSearchBSSList - Search known BSS list for Desire SSID or BSSID
25 * BSSvClearBSSList - Clear BSS List
26 * BSSbInsertToBSSList - Insert a BSS set into known BSS list
27 * BSSbUpdateToBSSList - Update BSS set in known BSS list
28 * BSSbIsSTAInNodeDB - Search Node DB table to find the index of matched DstAddr
29 * BSSvCreateOneNode - Allocate an Node for Node DB
30 * BSSvUpdateAPNode - Update AP Node content in Index 0 of KnownNodeDB
31 * BSSvSecondCallBack - One second timer callback function to update Node DB info & AP link status
32 * BSSvUpdateNodeTxCounter - Update Tx attemps, Tx failure counter in Node DB for auto-fallback rate control
60 static int msglevel = MSG_LEVEL_INFO;
61 /* static int msglevel = MSG_LEVEL_DEBUG; */
63 static const u16 awHWRetry0[5][5] = {
64 {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M},
65 {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M},
66 {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M},
67 {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M},
68 {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M}
70 static const u16 awHWRetry1[5][5] = {
71 {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M},
72 {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M},
73 {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M},
74 {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M},
75 {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M}
78 static void s_vCheckSensitivity(struct vnt_private *pDevice);
79 static void s_vCheckPreEDThreshold(struct vnt_private *pDevice);
80 static void s_uCalculateLinkQual(struct vnt_private *pDevice);
83 * Routine Description:
84 * Search known BSS list for Desire SSID or BSSID.
87 * PTR to KnownBSS or NULL
89 PKnownBSS BSSpSearchBSSList(struct vnt_private *pDevice,
90 u8 *pbyDesireBSSID, u8 *pbyDesireSSID,
91 CARD_PHY_TYPE ePhyType)
93 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
95 PWLAN_IE_SSID pSSID = NULL;
96 PKnownBSS pCurrBSS = NULL;
97 PKnownBSS pSelect = NULL;
98 u8 ZeroBSSID[WLAN_BSSID_LEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
102 if (pbyDesireBSSID) {
103 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
104 "BSSpSearchBSSList BSSID[%pM]\n", pbyDesireBSSID);
105 if (!is_broadcast_ether_addr(pbyDesireBSSID) &&
106 memcmp(pbyDesireBSSID, ZeroBSSID, 6) != 0)
107 pbyBSSID = pbyDesireBSSID;
110 ((PWLAN_IE_SSID) pbyDesireSSID)->len != 0)
111 pSSID = (PWLAN_IE_SSID) pbyDesireSSID;
113 if (pbyBSSID && pDevice->bRoaming == false) {
114 /* match BSSID first */
115 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
116 pCurrBSS = &(pMgmt->sBSSList[ii]);
118 pCurrBSS->bSelected = false;
120 if (pCurrBSS->bActive &&
121 pCurrBSS->bSelected == false &&
122 ether_addr_equal(pCurrBSS->abyBSSID, pbyBSSID)) {
125 if (!memcmp(pSSID->abySSID,
126 ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID,
128 (pMgmt->eConfigMode == WMAC_CONFIG_AUTO ||
129 (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA &&
130 WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
131 (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA &&
132 WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)))) {
134 pCurrBSS->bSelected = true;
137 } else if (pMgmt->eConfigMode == WMAC_CONFIG_AUTO ||
138 (pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA &&
139 WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
140 (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA &&
141 WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))) {
142 pCurrBSS->bSelected = true;
149 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
150 pCurrBSS = &(pMgmt->sBSSList[ii]);
152 /* 2007-0721-01<Mark>by MikeLiu
153 * if ((pCurrBSS->bActive) &&
154 * (pCurrBSS->bSelected == false)) { */
156 pCurrBSS->bSelected = false;
157 if (pCurrBSS->bActive) {
161 (memcmp(pSSID->abySSID,
162 ((PWLAN_IE_SSID) pCurrBSS->abySSID)->abySSID,
165 ((PWLAN_IE_SSID) pCurrBSS->abySSID)->len)) {
166 /* SSID not match skip this BSS */
170 if ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA &&
171 WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) ||
172 (pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA &&
173 WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo))) {
174 /* Type not match skip this BSS */
175 DBG_PRT(MSG_LEVEL_DEBUG,
176 KERN_INFO "BSS type mismatch.... Config[%d] BSS[0x%04x]\n",
182 if (ePhyType != PHY_TYPE_AUTO &&
183 ((ePhyType == PHY_TYPE_11A &&
184 PHY_TYPE_11A != pCurrBSS->eNetworkTypeInUse) ||
185 (ePhyType != PHY_TYPE_11A &&
186 PHY_TYPE_11A == pCurrBSS->eNetworkTypeInUse))) {
187 /* PhyType not match skip this BSS */
188 DBG_PRT(MSG_LEVEL_DEBUG,
189 KERN_INFO "Physical type mismatch.... ePhyType[%d] BSS[%d]\n",
191 pCurrBSS->eNetworkTypeInUse);
195 pMgmt->pSameBSS[jj].uChannel = pCurrBSS->uChannel;
196 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
197 "BSSpSearchBSSList pSelect1[%pM]\n",
203 /* compare RSSI, select the strongest signal */
204 else if (pCurrBSS->uRSSI < pSelect->uRSSI)
209 pDevice->bSameBSSMaxNum = jj;
212 pSelect->bSelected = true;
213 if (pDevice->bRoaming == false) {
214 /* Einsn Add @20070907 */
215 memcpy(pbyDesireSSID,
217 WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
228 * Routine Description:
234 void BSSvClearBSSList(struct vnt_private *pDevice, int bKeepCurrBSSID)
236 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
239 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
240 if (bKeepCurrBSSID &&
241 pMgmt->sBSSList[ii].bActive &&
242 ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
243 pMgmt->abyCurrBSSID)) {
246 * there are two BSSID's in list. If that AP is
247 * in hidden ssid mode, one SSID is null, but
248 * other's might not be obvious, so if it
249 * associate's with your STA, you must keep the
250 * two of them!! bKeepCurrBSSID = false;
256 pMgmt->sBSSList[ii].bActive = false;
257 memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS));
259 BSSvClearAnyBSSJoinRecord(pDevice);
263 * Routine Description:
264 * search BSS list by BSSID & SSID if matched
269 PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *pDevice,
273 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
274 PKnownBSS pBSSList = NULL;
277 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
278 pBSSList = &(pMgmt->sBSSList[ii]);
279 if (pBSSList->bActive &&
280 ether_addr_equal(pBSSList->abyBSSID, abyBSSID) &&
281 pSSID->len == ((PWLAN_IE_SSID) pBSSList->abySSID)->len &&
282 memcmp(pSSID->abySSID,
283 ((PWLAN_IE_SSID) pBSSList->abySSID)->abySSID,
292 * Routine Description:
293 * Insert a BSS set into known BSS list
298 int BSSbInsertToBSSList(struct vnt_private *pDevice,
305 PWLAN_IE_SUPP_RATES pSuppRates,
306 PWLAN_IE_SUPP_RATES pExtSuppRates,
309 PWLAN_IE_RSN_EXT pRSNWPA,
310 PWLAN_IE_COUNTRY pIE_Country,
311 PWLAN_IE_QUIET pIE_Quiet,
314 void *pRxPacketContext)
316 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
317 struct vnt_rx_mgmt *pRxPacket =
318 (struct vnt_rx_mgmt *) pRxPacketContext;
319 PKnownBSS pBSSList = NULL;
321 bool bParsingQuiet = false;
323 pBSSList = (PKnownBSS) &(pMgmt->sBSSList[0]);
325 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
326 pBSSList = (PKnownBSS) &(pMgmt->sBSSList[ii]);
327 if (!pBSSList->bActive)
331 if (ii == MAX_BSS_NUM) {
332 DBG_PRT(MSG_LEVEL_DEBUG,
333 KERN_INFO "Get free KnowBSS node failed.\n");
336 /* save the BSS info */
337 pBSSList->bActive = true;
338 memcpy(pBSSList->abyBSSID, abyBSSIDAddr, WLAN_BSSID_LEN);
339 pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp);
340 pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
341 pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
342 pBSSList->uClearCount = 0;
344 if (pSSID->len > WLAN_SSID_MAXLEN)
345 pSSID->len = WLAN_SSID_MAXLEN;
346 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
348 pBSSList->uChannel = byCurrChannel;
350 if (pSuppRates->len > WLAN_RATES_MAXLEN)
351 pSuppRates->len = WLAN_RATES_MAXLEN;
352 memcpy(pBSSList->abySuppRates, pSuppRates,
353 pSuppRates->len + WLAN_IEHDR_LEN);
356 if (pExtSuppRates->len > WLAN_RATES_MAXLEN)
357 pExtSuppRates->len = WLAN_RATES_MAXLEN;
358 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates,
359 pExtSuppRates->len + WLAN_IEHDR_LEN);
360 DBG_PRT(MSG_LEVEL_DEBUG,
361 KERN_INFO "BSSbInsertToBSSList: pExtSuppRates->len = %d\n",
365 memset(pBSSList->abyExtSuppRates, 0,
366 WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
368 pBSSList->sERP.byERP = psERP->byERP;
369 pBSSList->sERP.bERPExist = psERP->bERPExist;
371 /* Check if BSS is 802.11a/b/g */
372 if (pBSSList->uChannel > CB_MAX_CHANNEL_24G)
373 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
374 else if (pBSSList->sERP.bERPExist == true)
375 pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
377 pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
379 pBSSList->byRxRate = pRxPacket->byRxRate;
380 pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
381 pBSSList->uRSSI = pRxPacket->uRSSI;
382 pBSSList->bySQ = pRxPacket->bySQ;
384 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA &&
385 pMgmt->eCurrState == WMAC_STATE_ASSOC &&
387 pBSSList == pMgmt->pCurrBSS)
388 bParsingQuiet = true;
390 WPA_ClearRSN(pBSSList);
393 unsigned int uLen = pRSNWPA->len + 2;
395 if (uLen <= (uIELength -
396 (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) {
397 pBSSList->wWPALen = uLen;
398 memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
399 WPA_ParseRSN(pBSSList, pRSNWPA);
403 WPA2_ClearRSN(pBSSList);
406 unsigned int uLen = pRSN->len + 2;
408 if (uLen <= (uIELength -
409 (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) {
410 pBSSList->wRSNLen = uLen;
411 memcpy(pBSSList->byRSNIE, pRSN, uLen);
412 WPA2vParseRSN(pBSSList, pRSN);
416 if (pMgmt->eAuthenMode == WMAC_AUTH_WPA2 ||
417 pBSSList->bWPA2Valid == true) {
419 PSKeyItem pTransmitKey = NULL;
420 bool bIs802_1x = false;
422 for (ii = 0; ii < pBSSList->wAKMSSAuthCount; ii++) {
423 if (pBSSList->abyAKMSSAuthType[ii] ==
424 WLAN_11i_AKMSS_802_1X) {
429 if (bIs802_1x == true &&
430 pSSID->len == ((PWLAN_IE_SSID) pMgmt->abyDesireSSID)->len &&
431 !memcmp(pSSID->abySSID,
432 ((PWLAN_IE_SSID) pMgmt->abyDesireSSID)->abySSID,
435 bAdd_PMKID_Candidate((void *) pDevice,
437 &pBSSList->sRSNCapObj);
439 if (pDevice->bLinkPass == true &&
440 pMgmt->eCurrState == WMAC_STATE_ASSOC &&
441 (KeybGetTransmitKey(&(pDevice->sKey),
444 &pTransmitKey) == true ||
445 KeybGetTransmitKey(&(pDevice->sKey),
448 &pTransmitKey) == true)) {
449 pDevice->gsPMKIDCandidate.StatusType =
450 Ndis802_11StatusType_PMKID_CandidateList;
451 pDevice->gsPMKIDCandidate.Version = 1;
458 /* Monitor if RSSI is too strong. */
459 pBSSList->byRSSIStatCnt = 0;
460 RFvRSSITodBm(pDevice, (u8) (pRxPacket->uRSSI),
462 pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX;
463 pBSSList->ldBmAverRange = pBSSList->ldBmMAX;
464 for (ii = 1; ii < RSSI_STAT_COUNT; ii++)
465 pBSSList->ldBmAverage[ii] = 0;
467 pBSSList->uIELength = uIELength;
468 if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
469 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
470 memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
476 * Routine Description:
477 * Update BSS set in known BSS list
482 /* TODO: input structure modify */
483 int BSSbUpdateToBSSList(struct vnt_private *pDevice,
490 PWLAN_IE_SUPP_RATES pSuppRates,
491 PWLAN_IE_SUPP_RATES pExtSuppRates,
494 PWLAN_IE_RSN_EXT pRSNWPA,
495 PWLAN_IE_COUNTRY pIE_Country,
496 PWLAN_IE_QUIET pIE_Quiet,
500 void *pRxPacketContext)
502 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
503 struct vnt_rx_mgmt *pRxPacket =
504 (struct vnt_rx_mgmt *) pRxPacketContext;
506 signed long ldBm, ldBmSum;
507 bool bParsingQuiet = false;
512 pBSSList->qwBSSTimestamp = cpu_to_le64(qwTimestamp);
514 pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
515 pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
516 pBSSList->uClearCount = 0;
517 pBSSList->uChannel = byCurrChannel;
519 if (pSSID->len > WLAN_SSID_MAXLEN)
520 pSSID->len = WLAN_SSID_MAXLEN;
522 if (pSSID->len != 0 && pSSID->abySSID[0] != 0)
523 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
524 memcpy(pBSSList->abySuppRates, pSuppRates,
525 pSuppRates->len + WLAN_IEHDR_LEN);
528 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates,
529 pExtSuppRates->len + WLAN_IEHDR_LEN);
531 memset(pBSSList->abyExtSuppRates, 0,
532 WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
533 pBSSList->sERP.byERP = psERP->byERP;
534 pBSSList->sERP.bERPExist = psERP->bERPExist;
536 /* Check if BSS is 802.11a/b/g */
537 if (pBSSList->uChannel > CB_MAX_CHANNEL_24G)
538 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
539 else if (pBSSList->sERP.bERPExist == true)
540 pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
542 pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
544 pBSSList->byRxRate = pRxPacket->byRxRate;
545 pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
547 pBSSList->uRSSI = pRxPacket->uRSSI;
548 pBSSList->bySQ = pRxPacket->bySQ;
550 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA &&
551 pMgmt->eCurrState == WMAC_STATE_ASSOC &&
553 pBSSList == pMgmt->pCurrBSS)
554 bParsingQuiet = true;
556 WPA_ClearRSN(pBSSList); /* mike update */
559 unsigned int uLen = pRSNWPA->len + 2;
560 if (uLen <= (uIELength -
561 (unsigned int) (u32) ((u8 *) pRSNWPA - pbyIEs))) {
562 pBSSList->wWPALen = uLen;
563 memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
564 WPA_ParseRSN(pBSSList, pRSNWPA);
568 WPA2_ClearRSN(pBSSList); /* mike update */
571 unsigned int uLen = pRSN->len + 2;
572 if (uLen <= (uIELength -
573 (unsigned int) (u32) ((u8 *) pRSN - pbyIEs))) {
574 pBSSList->wRSNLen = uLen;
575 memcpy(pBSSList->byRSNIE, pRSN, uLen);
576 WPA2vParseRSN(pBSSList, pRSN);
580 if (pRxPacket->uRSSI != 0) {
581 RFvRSSITodBm(pDevice, (u8) (pRxPacket->uRSSI), &ldBm);
582 /* Monitor if RSSI is too strong. */
583 pBSSList->byRSSIStatCnt++;
584 pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT;
585 pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm;
587 for (ii = 0, jj = 0; ii < RSSI_STAT_COUNT; ii++) {
588 if (pBSSList->ldBmAverage[ii] != 0) {
590 max(pBSSList->ldBmAverage[ii], ldBm);
592 pBSSList->ldBmAverage[ii];
596 pBSSList->ldBmAverRange = ldBmSum / jj;
599 pBSSList->uIELength = uIELength;
600 if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
601 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
602 memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
608 * Routine Description:
609 * Search Node DB table to find the index of matched DstAddr
614 int BSSbIsSTAInNodeDB(struct vnt_private *pDevice,
618 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
621 /* Index = 0 reserved for AP Node */
622 for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
623 if (pMgmt->sNodeDBTable[ii].bActive &&
624 ether_addr_equal(abyDstAddr,
625 pMgmt->sNodeDBTable[ii].abyMACAddr)) {
635 * Routine Description:
636 * Find an empty node and allocate it; if no empty node
637 * is found, then use the most inactive one.
642 void BSSvCreateOneNode(struct vnt_private *pDevice, u32 *puNodeIndex)
644 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
650 /* Index = 0 reserved for AP Node (In STA mode)
651 Index = 0 reserved for Broadcast/MultiCast (In AP mode) */
653 for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
654 if (pMgmt->sNodeDBTable[ii].bActive) {
655 if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) {
657 pMgmt->sNodeDBTable[ii].uInActiveCount;
665 /* if not found replace uInActiveCount with the largest one. */
666 if (ii == (MAX_NODE_NUM + 1)) {
667 *puNodeIndex = SelectIndex;
668 DBG_PRT(MSG_LEVEL_DEBUG,
669 KERN_INFO "Replace inactive node = %d\n", SelectIndex);
670 /* clear ps buffer */
671 if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next) {
672 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue)))
679 memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB));
680 pMgmt->sNodeDBTable[*puNodeIndex].bActive = true;
681 pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND;
682 /* for AP mode PS queue */
683 skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue);
684 pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0;
685 pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0;
686 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create node index = %d\n", ii);
690 * Routine Description:
691 * Remove Node by NodeIndex
697 void BSSvRemoveOneNode(struct vnt_private *pDevice, u32 uNodeIndex)
699 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
700 u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
703 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue)))
706 memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB));
707 /* clear tx bit map */
708 pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &=
709 ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7];
713 * Routine Description:
714 * Update AP Node content in Index 0 of KnownNodeDB
720 void BSSvUpdateAPNode(struct vnt_private *pDevice,
722 PWLAN_IE_SUPP_RATES pSuppRates,
723 PWLAN_IE_SUPP_RATES pExtSuppRates)
725 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
726 u32 uRateLen = WLAN_RATES_MAXLEN;
728 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
730 pMgmt->sNodeDBTable[0].bActive = true;
731 if (pDevice->byBBType == BB_TYPE_11B)
732 uRateLen = WLAN_RATES_MAXLEN_11B;
733 pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES) pSuppRates,
734 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates,
736 pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES) pExtSuppRates,
737 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates,
739 RATEvParseMaxRate((void *) pDevice,
740 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates,
741 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates,
743 &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
744 &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
745 &(pMgmt->sNodeDBTable[0].wSuppRate),
746 &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
747 &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate));
748 memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID,
750 pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate;
751 pMgmt->sNodeDBTable[0].bShortPreamble =
752 WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo);
753 pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
754 /* Auto rate fallback function initiation.
755 * RATEbInit(pDevice); */
756 DBG_PRT(MSG_LEVEL_DEBUG,
757 KERN_INFO"pMgmt->sNodeDBTable[0].wTxDataRate = %d\n",
758 pMgmt->sNodeDBTable[0].wTxDataRate);
763 * Routine Description:
764 * Add Multicast Node content in Index 0 of KnownNodeDB
770 void BSSvAddMulticastNode(struct vnt_private *pDevice)
772 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
774 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
776 memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN);
777 pMgmt->sNodeDBTable[0].bActive = true;
778 pMgmt->sNodeDBTable[0].bPSEnable = false;
779 skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue);
780 RATEvParseMaxRate((void *) pDevice,
781 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrSuppRates,
782 (PWLAN_IE_SUPP_RATES) pMgmt->abyCurrExtSuppRates,
784 &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
785 &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
786 &(pMgmt->sNodeDBTable[0].wSuppRate),
787 &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
788 &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate));
789 pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate;
790 pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
795 * Routine Description:
798 * Second call back function to update Node DB info & AP link status
804 void BSSvSecondCallBack(struct work_struct *work)
806 struct vnt_private *pDevice = container_of(work,
807 struct vnt_private, second_callback_work.work);
808 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
810 PWLAN_IE_SSID pItemSSID, pCurrSSID;
811 u32 uSleepySTACnt = 0;
812 u32 uNonShortSlotSTACnt = 0;
813 u32 uLongPreambleSTACnt = 0;
815 if (pDevice->Flags & fMP_DISCONNECTED)
818 pDevice->uAssocCount = 0;
820 /* Power Saving Mode Tx Burst */
821 if (pDevice->bEnablePSMode == true) {
822 pDevice->ulPSModeWaitTx++;
823 if (pDevice->ulPSModeWaitTx >= 2) {
824 pDevice->ulPSModeWaitTx = 0;
825 pDevice->bPSModeTxBurst = false;
829 pDevice->byERPFlag &=
830 ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1));
832 if (pDevice->wUseProtectCntDown > 0) {
833 pDevice->wUseProtectCntDown--;
835 /* disable protect mode */
836 pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1));
839 if (pDevice->byReAssocCount > 0) {
840 pDevice->byReAssocCount++;
841 if (pDevice->byReAssocCount > 10 &&
842 pDevice->bLinkPass != true) { /* 10 sec timeout */
843 printk("Re-association timeout!!!\n");
844 pDevice->byReAssocCount = 0;
845 /* if (pDevice->bWPASuppWextEnabled == true) */
847 union iwreq_data wrqu;
848 memset(&wrqu, 0, sizeof(wrqu));
849 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
850 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
851 wireless_send_event(pDevice->dev, SIOCGIWAP,
854 } else if (pDevice->bLinkPass == true) {
855 pDevice->byReAssocCount = 0;
859 pMgmt->eLastState = pMgmt->eCurrState;
861 s_uCalculateLinkQual(pDevice);
863 for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) {
865 if (pMgmt->sNodeDBTable[ii].bActive) {
866 /* Increase in-activity counter */
867 pMgmt->sNodeDBTable[ii].uInActiveCount++;
870 if (pMgmt->sNodeDBTable[ii].uInActiveCount >
871 MAX_INACTIVE_COUNT) {
872 BSSvRemoveOneNode(pDevice, ii);
873 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
874 "Inactive timeout [%d] sec, STA index = [%d] remove\n",
875 MAX_INACTIVE_COUNT, ii);
879 if (pMgmt->sNodeDBTable[ii].eNodeState >=
882 pDevice->uAssocCount++;
884 /* check if Non ERP exist */
885 if (pMgmt->sNodeDBTable[ii].uInActiveCount <
887 if (!pMgmt->sNodeDBTable[ii].bShortPreamble) {
888 pDevice->byERPFlag |=
889 WLAN_SET_ERP_BARKER_MODE(1);
890 uLongPreambleSTACnt++;
892 if (!pMgmt->sNodeDBTable[ii].bERPExist) {
893 pDevice->byERPFlag |=
894 WLAN_SET_ERP_NONERP_PRESENT(1);
895 pDevice->byERPFlag |=
896 WLAN_SET_ERP_USE_PROTECTION(1);
898 if (!pMgmt->sNodeDBTable[ii].bShortSlotTime)
899 uNonShortSlotSTACnt++;
903 /* check if any STA in PS mode */
904 if (pMgmt->sNodeDBTable[ii].bPSEnable)
909 /* Rate fallback check */
910 if (!pDevice->bFixRate) {
912 /* ii = 0 for multicast node (AP & Adhoc) */
913 RATEvTxRateFallBack((void *) pDevice,
914 &(pMgmt->sNodeDBTable[ii]));
915 } else if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
916 /* ii = 0 reserved for unicast AP node (Infra STA) */
917 RATEvTxRateFallBack((void *) pDevice,
918 &(pMgmt->sNodeDBTable[ii]));
923 /* check if pending PS queue */
924 if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) {
925 DBG_PRT(MSG_LEVEL_DEBUG,
926 KERN_INFO "Index= %d, Queue = %d pending\n",
928 pMgmt->sNodeDBTable[ii].wEnQueueCnt);
930 pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15) {
931 BSSvRemoveOneNode(pDevice, ii);
932 DBG_PRT(MSG_LEVEL_NOTICE,
933 KERN_INFO "Pending many queues PS STA Index = %d remove\n",
942 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP &&
943 pDevice->byBBType == BB_TYPE_11G) {
945 /* on/off protect mode */
946 if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) {
947 if (!pDevice->bProtectMode) {
948 MACvEnableProtectMD(pDevice);
949 pDevice->bProtectMode = true;
951 } else if (pDevice->bProtectMode) {
952 MACvDisableProtectMD(pDevice);
953 pDevice->bProtectMode = false;
955 /* on/off short slot time */
957 if (uNonShortSlotSTACnt > 0) {
958 if (pDevice->bShortSlotTime) {
959 pDevice->bShortSlotTime = false;
960 BBvSetShortSlotTime(pDevice);
961 vUpdateIFS((void *) pDevice);
963 } else if (!pDevice->bShortSlotTime) {
964 pDevice->bShortSlotTime = true;
965 BBvSetShortSlotTime(pDevice);
966 vUpdateIFS((void *) pDevice);
969 /* on/off barker long preamble mode */
971 if (uLongPreambleSTACnt > 0) {
972 if (!pDevice->bBarkerPreambleMd) {
973 MACvEnableBarkerPreambleMd(pDevice);
974 pDevice->bBarkerPreambleMd = true;
976 } else if (pDevice->bBarkerPreambleMd) {
977 MACvDisableBarkerPreambleMd(pDevice);
978 pDevice->bBarkerPreambleMd = false;
983 /* Check if any STA in PS mode, enable DTIM multicast deliver */
984 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
985 if (uSleepySTACnt > 0)
986 pMgmt->sNodeDBTable[0].bPSEnable = true;
988 pMgmt->sNodeDBTable[0].bPSEnable = false;
991 pItemSSID = (PWLAN_IE_SSID) pMgmt->abyDesireSSID;
992 pCurrSSID = (PWLAN_IE_SSID) pMgmt->abyCurrSSID;
994 if (pMgmt->eCurrMode == WMAC_MODE_STANDBY ||
995 pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
997 if (pMgmt->sNodeDBTable[0].bActive) { /* Assoc with BSS */
999 s_vCheckSensitivity(pDevice);
1000 s_vCheckPreEDThreshold(pDevice);
1002 if (pMgmt->sNodeDBTable[0].uInActiveCount >=
1003 (LOST_BEACON_COUNT/2) &&
1004 pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) {
1005 pDevice->byBBVGANew = pDevice->abyBBVGA[0];
1006 bScheduleCommand((void *) pDevice,
1007 WLAN_CMD_CHANGE_BBSENSITIVITY,
1011 if (pMgmt->sNodeDBTable[0].uInActiveCount >=
1012 LOST_BEACON_COUNT) {
1013 pMgmt->sNodeDBTable[0].bActive = false;
1014 pMgmt->eCurrMode = WMAC_MODE_STANDBY;
1015 pMgmt->eCurrState = WMAC_STATE_IDLE;
1016 netif_stop_queue(pDevice->dev);
1017 pDevice->bLinkPass = false;
1018 ControlvMaskByte(pDevice,
1019 MESSAGE_REQUEST_MACREG,
1020 MAC_REG_PAPEDELAY, LEDSTS_STS,
1022 pDevice->bRoaming = true;
1023 pDevice->bIsRoaming = false;
1025 DBG_PRT(MSG_LEVEL_NOTICE,
1026 KERN_INFO "Lost AP beacon [%d] sec, disconnected !\n",
1027 pMgmt->sNodeDBTable[0].uInActiveCount);
1028 /* let wpa supplicant know AP may disconnect */
1030 union iwreq_data wrqu;
1031 memset(&wrqu, 0, sizeof(wrqu));
1032 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1033 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
1034 wireless_send_event(pDevice->dev,
1040 } else if (pItemSSID->len != 0) {
1042 if ((pDevice->bEnableRoaming == true) &&
1043 (!(pMgmt->Cisco_cckm))) {
1044 DBG_PRT(MSG_LEVEL_DEBUG,
1045 KERN_INFO "bRoaming %d, !\n",
1047 DBG_PRT(MSG_LEVEL_DEBUG,
1048 KERN_INFO "bIsRoaming %d, !\n",
1049 pDevice->bIsRoaming);
1050 if ((pDevice->bRoaming == true) &&
1051 (pDevice->bIsRoaming == true)) {
1052 DBG_PRT(MSG_LEVEL_DEBUG,
1053 KERN_INFO "Fast Roaming ...\n");
1054 BSSvClearBSSList((void *) pDevice,
1055 pDevice->bLinkPass);
1056 bScheduleCommand((void *) pDevice,
1057 WLAN_CMD_BSSID_SCAN,
1058 pMgmt->abyDesireSSID);
1059 bScheduleCommand((void *) pDevice,
1061 pMgmt->abyDesireSSID);
1062 pDevice->uAutoReConnectTime = 0;
1063 pDevice->uIsroamingTime = 0;
1064 pDevice->bRoaming = false;
1065 } else if (pDevice->bRoaming == false &&
1066 pDevice->bIsRoaming == true) {
1067 pDevice->uIsroamingTime++;
1068 if (pDevice->uIsroamingTime >= 20)
1069 pDevice->bIsRoaming = false;
1071 } else if (pDevice->uAutoReConnectTime < 10) {
1072 pDevice->uAutoReConnectTime++;
1073 /* network manager support need not do Roaming scan??? */
1074 if (pDevice->bWPASuppWextEnabled == true)
1075 pDevice->uAutoReConnectTime = 0;
1077 /* mike use old encryption status for wpa reauthen */
1078 if (pDevice->bWPADEVUp)
1079 pDevice->eEncryptionStatus =
1080 pDevice->eOldEncryptionStatus;
1082 DBG_PRT(MSG_LEVEL_DEBUG,
1083 KERN_INFO "Roaming ...\n");
1084 BSSvClearBSSList((void *) pDevice,
1085 pDevice->bLinkPass);
1086 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1087 bScheduleCommand((void *) pDevice,
1088 WLAN_CMD_BSSID_SCAN,
1089 pMgmt->abyDesireSSID);
1090 bScheduleCommand((void *) pDevice,
1092 pMgmt->abyDesireSSID);
1093 pDevice->uAutoReConnectTime = 0;
1098 if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
1099 /* if adhoc started which essid is NULL string, rescanning. */
1100 if (pMgmt->eCurrState == WMAC_STATE_STARTED &&
1101 pCurrSSID->len == 0) {
1102 if (pDevice->uAutoReConnectTime < 10) {
1103 pDevice->uAutoReConnectTime++;
1105 DBG_PRT(MSG_LEVEL_NOTICE,
1106 KERN_INFO "Adhoc re-scanning ...\n");
1107 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1108 bScheduleCommand((void *) pDevice,
1109 WLAN_CMD_BSSID_SCAN, NULL);
1110 bScheduleCommand((void *) pDevice,
1111 WLAN_CMD_SSID, NULL);
1112 pDevice->uAutoReConnectTime = 0;
1115 if (pMgmt->eCurrState == WMAC_STATE_JOINTED) {
1117 s_vCheckSensitivity(pDevice);
1118 s_vCheckPreEDThreshold(pDevice);
1120 if (pMgmt->sNodeDBTable[0].uInActiveCount >=
1121 ADHOC_LOST_BEACON_COUNT) {
1122 DBG_PRT(MSG_LEVEL_NOTICE,
1123 KERN_INFO "Lost other STA beacon [%d] sec, started !\n",
1124 pMgmt->sNodeDBTable[0].uInActiveCount);
1125 pMgmt->sNodeDBTable[0].uInActiveCount = 0;
1126 pMgmt->eCurrState = WMAC_STATE_STARTED;
1127 netif_stop_queue(pDevice->dev);
1128 pDevice->bLinkPass = false;
1129 ControlvMaskByte(pDevice,
1130 MESSAGE_REQUEST_MACREG,
1131 MAC_REG_PAPEDELAY, LEDSTS_STS,
1137 if (pDevice->bLinkPass == true) {
1138 if ((pMgmt->eAuthenMode < WMAC_AUTH_WPA ||
1139 pDevice->fWPA_Authened == true) &&
1140 (++pDevice->tx_data_time_out > 40)) {
1141 pDevice->tx_trigger = true;
1143 PSbSendNullPacket(pDevice);
1145 pDevice->tx_trigger = false;
1146 pDevice->tx_data_time_out = 0;
1149 if (netif_queue_stopped(pDevice->dev))
1150 netif_wake_queue(pDevice->dev);
1153 schedule_delayed_work(&pDevice->second_callback_work, HZ);
1157 * Routine Description:
1160 * Update Tx attemps, Tx failure counter in Node DB
1166 void BSSvUpdateNodeTxCounter(struct vnt_private *pDevice, u8 byTSR, u8 byPktNO)
1168 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1169 struct vnt_tx_pkt_info *pkt_info = pDevice->pkt_info;
1173 u16 wFallBackRate = RATE_1M;
1180 byPktNum = (byPktNO & 0x0F) >> 4;
1181 byTxRetry = (byTSR & 0xF0) >> 4;
1182 wRate = (u16) (byPktNO & 0xF0) >> 4;
1183 wFIFOCtl = pkt_info[byPktNum].fifo_ctl;
1184 pbyDestAddr = pkt_info[byPktNum].dest_addr;
1186 if (wFIFOCtl & FIFOCTL_AUTO_FB_0)
1187 byFallBack = AUTO_FB_0;
1188 else if (wFIFOCtl & FIFOCTL_AUTO_FB_1)
1189 byFallBack = AUTO_FB_1;
1191 byFallBack = AUTO_FB_NONE;
1193 /* Only Unicast using support rates */
1194 if (wFIFOCtl & FIFOCTL_NEEDACK) {
1195 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
1196 pMgmt->sNodeDBTable[0].uTxAttempts += 1;
1197 if (!(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
1198 /* transmit success, TxAttempts at least plus one */
1199 pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++;
1200 if ((byFallBack == AUTO_FB_NONE) ||
1201 (wRate < RATE_18M)) {
1202 wFallBackRate = wRate;
1203 } else if (byFallBack == AUTO_FB_0) {
1206 awHWRetry0[wRate-RATE_18M][byTxRetry];
1209 awHWRetry0[wRate-RATE_18M][4];
1210 } else if (byFallBack == AUTO_FB_1) {
1213 awHWRetry1[wRate-RATE_18M][byTxRetry];
1215 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1217 pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++;
1219 pMgmt->sNodeDBTable[0].uTxFailures++;
1221 pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry;
1222 if (byTxRetry != 0) {
1223 pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE] += byTxRetry;
1224 if (byFallBack == AUTO_FB_NONE ||
1226 pMgmt->sNodeDBTable[0].uTxFail[wRate] += byTxRetry;
1227 } else if (byFallBack == AUTO_FB_0) {
1228 for (ii = 0; ii < byTxRetry; ii++) {
1231 awHWRetry0[wRate-RATE_18M][ii];
1234 awHWRetry0[wRate-RATE_18M][4];
1235 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1237 } else if (byFallBack == AUTO_FB_1) {
1238 for (ii = 0; ii < byTxRetry; ii++) {
1241 awHWRetry1[wRate-RATE_18M][ii];
1244 awHWRetry1[wRate-RATE_18M][4];
1245 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1251 if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA ||
1252 pMgmt->eCurrMode == WMAC_MODE_ESS_AP) &&
1253 BSSbIsSTAInNodeDB((void *) pDevice,
1256 pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1;
1257 if (!(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
1258 /* transmit success, TxAttempts at least plus one */
1259 pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
1260 if ((byFallBack == AUTO_FB_NONE) ||
1261 (wRate < RATE_18M)) {
1262 wFallBackRate = wRate;
1263 } else if (byFallBack == AUTO_FB_0) {
1266 awHWRetry0[wRate-RATE_18M][byTxRetry];
1269 awHWRetry0[wRate-RATE_18M][4];
1270 } else if (byFallBack == AUTO_FB_1) {
1273 awHWRetry1[wRate-RATE_18M][byTxRetry];
1276 awHWRetry1[wRate-RATE_18M][4];
1278 pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++;
1280 pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++;
1282 pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry;
1283 if (byTxRetry != 0) {
1284 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE] += byTxRetry;
1285 if ((byFallBack == AUTO_FB_NONE) ||
1286 (wRate < RATE_18M)) {
1287 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate] += byTxRetry;
1288 } else if (byFallBack == AUTO_FB_0) {
1289 for (ii = 0; ii < byTxRetry; ii++) {
1292 awHWRetry0[wRate-RATE_18M][ii];
1295 awHWRetry0[wRate-RATE_18M][4];
1296 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1298 } else if (byFallBack == AUTO_FB_1) {
1299 for (ii = 0; ii < byTxRetry; ii++) {
1301 wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
1303 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1304 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1313 * Routine Description:
1314 * Clear Nodes & skb in DB Table
1319 * hDeviceContext - The adapter context.
1320 * uStartIndex - starting index
1327 void BSSvClearNodeDBTable(struct vnt_private *pDevice, u32 uStartIndex)
1329 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1330 struct sk_buff *skb;
1333 for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) {
1334 if (pMgmt->sNodeDBTable[ii].bActive) {
1335 /* check if sTxPSQueue has been initial */
1336 if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next) {
1337 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue))) {
1338 DBG_PRT(MSG_LEVEL_DEBUG,
1339 KERN_INFO "PS skb != NULL %d\n",
1344 memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB));
1349 static void s_vCheckSensitivity(struct vnt_private *pDevice)
1351 PKnownBSS pBSSList = NULL;
1352 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1355 if (pMgmt->eCurrState == WMAC_STATE_ASSOC ||
1356 (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA &&
1357 pMgmt->eCurrState == WMAC_STATE_JOINTED)) {
1358 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID,
1359 (PWLAN_IE_SSID) pMgmt->abyCurrSSID);
1361 /* Update BB register if RSSI is too strong */
1362 signed long LocalldBmAverage = 0;
1363 signed long uNumofdBm = 0;
1364 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
1365 if (pBSSList->ldBmAverage[ii] != 0) {
1367 LocalldBmAverage += pBSSList->ldBmAverage[ii];
1370 if (uNumofdBm > 0) {
1371 LocalldBmAverage = LocalldBmAverage/uNumofdBm;
1372 for (ii = 0; ii < BB_VGA_LEVEL; ii++) {
1373 DBG_PRT(MSG_LEVEL_DEBUG,
1374 KERN_INFO"LocalldBmAverage:%ld, %ld %02x\n",
1376 pDevice->ldBmThreshold[ii],
1377 pDevice->abyBBVGA[ii]);
1378 if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) {
1379 pDevice->byBBVGANew =
1380 pDevice->abyBBVGA[ii];
1384 if (pDevice->byBBVGANew !=
1385 pDevice->byBBVGACurrent) {
1386 pDevice->uBBVGADiffCount++;
1387 if (pDevice->uBBVGADiffCount >=
1388 BB_VGA_CHANGE_THRESHOLD)
1389 bScheduleCommand(pDevice,
1390 WLAN_CMD_CHANGE_BBSENSITIVITY,
1393 pDevice->uBBVGADiffCount = 0;
1400 static void s_uCalculateLinkQual(struct vnt_private *pDevice)
1402 struct net_device_stats *stats = &pDevice->stats;
1403 unsigned long TxOkRatio, TxCnt;
1404 unsigned long RxOkRatio, RxCnt;
1405 unsigned long RssiRatio;
1409 TxCnt = stats->tx_packets + pDevice->wstats.discard.retries;
1411 RxCnt = stats->rx_packets + stats->rx_frame_errors;
1413 TxOkRatio = (TxCnt < 6) ? 4000:((stats->tx_packets * 4000) / TxCnt);
1415 RxOkRatio = (RxCnt < 6) ? 2000 :
1416 ((stats->rx_packets * 2000) / RxCnt);
1418 /* decide link quality */
1419 if (pDevice->bLinkPass != true) {
1420 pDevice->wstats.qual.qual = 0;
1422 RFvRSSITodBm(pDevice, (u8) (pDevice->uCurrRSSI), &ldBm);
1425 else if (-ldBm > 90)
1428 RssiRatio = (40-(-ldBm-50)) * 4000 / 40;
1430 qual = (RssiRatio + TxOkRatio + RxOkRatio) / 100;
1432 pDevice->wstats.qual.qual = (u8) qual;
1434 pDevice->wstats.qual.qual = 100;
1438 void BSSvClearAnyBSSJoinRecord(struct vnt_private *pDevice)
1440 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1443 for (ii = 0; ii < MAX_BSS_NUM; ii++)
1444 pMgmt->sBSSList[ii].bSelected = false;
1449 static void s_vCheckPreEDThreshold(struct vnt_private *pDevice)
1451 PKnownBSS pBSSList = NULL;
1452 struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
1454 if (pMgmt->eCurrState == WMAC_STATE_ASSOC ||
1455 (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA &&
1456 pMgmt->eCurrState == WMAC_STATE_JOINTED)) {
1457 pBSSList = BSSpAddrIsInBSSList(pDevice,
1458 pMgmt->abyCurrBSSID,
1459 (PWLAN_IE_SSID) pMgmt->abyCurrSSID);
1461 pDevice->byBBPreEDRSSI =
1462 (u8) (~(pBSSList->ldBmAverRange) + 1);
1463 BBvUpdatePreEDThreshold(pDevice, false);