staging: vt6656: replace IS_ETH_ADDRESS_EQUAL with compare_ether_addr
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / staging / vt6656 / bssdb.c
blobbe54553262626ff55aec171045134c542df62477
1 /*
2 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
3 * All rights reserved.
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.
19 * File: bssdb.c
21 * Purpose: Handles the Basic Service Set & Node Database functions
23 * 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-fall back rate control
34 * Revision History:
36 * Author: Lyndon Chen
38 * Date: July 17, 2002
42 #include "ttype.h"
43 #include "tmacro.h"
44 #include "tether.h"
45 #include "device.h"
46 #include "80211hdr.h"
47 #include "bssdb.h"
48 #include "wmgr.h"
49 #include "datarate.h"
50 #include "desc.h"
51 #include "wcmd.h"
52 #include "wpa.h"
53 #include "baseband.h"
54 #include "rf.h"
55 #include "card.h"
56 #include "mac.h"
57 #include "wpa2.h"
58 #include "control.h"
59 #include "rndis.h"
60 #include "iowpa.h"
62 /*--------------------- Static Definitions -------------------------*/
67 /*--------------------- Static Classes ----------------------------*/
69 /*--------------------- Static Variables --------------------------*/
70 static int msglevel =MSG_LEVEL_INFO;
71 //static int msglevel =MSG_LEVEL_DEBUG;
75 const WORD awHWRetry0[5][5] = {
76 {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M},
77 {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M},
78 {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M},
79 {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M},
80 {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M}
82 const WORD awHWRetry1[5][5] = {
83 {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M},
84 {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M},
85 {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M},
86 {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M},
87 {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M}
92 /*--------------------- Static Functions --------------------------*/
94 void s_vCheckSensitivity(void *hDeviceContext);
95 void s_vCheckPreEDThreshold(void *hDeviceContext);
97 #ifdef Calcu_LinkQual
98 void s_uCalculateLinkQual(void *hDeviceContext);
99 #endif
101 /*--------------------- Export Variables --------------------------*/
104 /*--------------------- Export Functions --------------------------*/
112 * Routine Description:
113 * Search known BSS list for Desire SSID or BSSID.
115 * Return Value:
116 * PTR to KnownBSS or NULL
120 PKnownBSS BSSpSearchBSSList(void *hDeviceContext,
121 PBYTE pbyDesireBSSID,
122 PBYTE pbyDesireSSID,
123 CARD_PHY_TYPE ePhyType)
125 PSDevice pDevice = (PSDevice)hDeviceContext;
126 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
127 PBYTE pbyBSSID = NULL;
128 PWLAN_IE_SSID pSSID = NULL;
129 PKnownBSS pCurrBSS = NULL;
130 PKnownBSS pSelect = NULL;
131 BYTE ZeroBSSID[WLAN_BSSID_LEN]={0x00,0x00,0x00,0x00,0x00,0x00};
132 unsigned int ii = 0;
133 unsigned int jj = 0;
134 if (pbyDesireBSSID != NULL) {
135 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSpSearchBSSList BSSID[%02X %02X %02X-%02X %02X %02X]\n",
136 *pbyDesireBSSID,*(pbyDesireBSSID+1),*(pbyDesireBSSID+2),
137 *(pbyDesireBSSID+3),*(pbyDesireBSSID+4),*(pbyDesireBSSID+5));
138 if ((!is_broadcast_ether_addr(pbyDesireBSSID)) &&
139 (memcmp(pbyDesireBSSID, ZeroBSSID, 6)!= 0)){
140 pbyBSSID = pbyDesireBSSID;
143 if (pbyDesireSSID != NULL) {
144 if (((PWLAN_IE_SSID)pbyDesireSSID)->len != 0) {
145 pSSID = (PWLAN_IE_SSID) pbyDesireSSID;
149 if ((pbyBSSID != NULL)&&(pDevice->bRoaming == FALSE)) {
150 // match BSSID first
151 for (ii = 0; ii <MAX_BSS_NUM; ii++) {
152 pCurrBSS = &(pMgmt->sBSSList[ii]);
154 //2008-0718-01<Add>by MikeLiu
155 pCurrBSS->bSelected = FALSE;
157 if ((pCurrBSS->bActive) &&
158 (pCurrBSS->bSelected == FALSE)) {
159 if (!compare_ether_addr(pCurrBSS->abyBSSID, pbyBSSID)) {
160 if (pSSID != NULL) {
161 // compare ssid
162 if ( !memcmp(pSSID->abySSID,
163 ((PWLAN_IE_SSID)pCurrBSS->abySSID)->abySSID,
164 pSSID->len)) {
165 if ((pMgmt->eConfigMode == WMAC_CONFIG_AUTO) ||
166 ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
167 ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))
169 pCurrBSS->bSelected = TRUE;
170 return(pCurrBSS);
173 } else {
174 if ((pMgmt->eConfigMode == WMAC_CONFIG_AUTO) ||
175 ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
176 ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))
178 pCurrBSS->bSelected = TRUE;
179 return(pCurrBSS);
185 } else {
186 // ignore BSSID
187 for (ii = 0; ii <MAX_BSS_NUM; ii++) {
188 pCurrBSS = &(pMgmt->sBSSList[ii]);
190 //2007-0721-01<Mark>by MikeLiu
191 // if ((pCurrBSS->bActive) &&
192 // (pCurrBSS->bSelected == FALSE)) {
194 //2007-0721-01<Add>by MikeLiu
195 pCurrBSS->bSelected = FALSE;
196 if (pCurrBSS->bActive) {
198 if (pSSID != NULL) {
199 // matched SSID
200 if (memcmp(pSSID->abySSID,
201 ((PWLAN_IE_SSID)pCurrBSS->abySSID)->abySSID,
202 pSSID->len) ||
203 (pSSID->len != ((PWLAN_IE_SSID)pCurrBSS->abySSID)->len)) {
204 // SSID not match skip this BSS
205 continue;
208 if (((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) ||
209 ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo))
211 // Type not match skip this BSS
212 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSS type mismatch.... Config[%d] BSS[0x%04x]\n", pMgmt->eConfigMode, pCurrBSS->wCapInfo);
213 continue;
216 if (ePhyType != PHY_TYPE_AUTO) {
217 if (((ePhyType == PHY_TYPE_11A) && (PHY_TYPE_11A != pCurrBSS->eNetworkTypeInUse)) ||
218 ((ePhyType != PHY_TYPE_11A) && (PHY_TYPE_11A == pCurrBSS->eNetworkTypeInUse))) {
219 // PhyType not match skip this BSS
220 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Physical type mismatch.... ePhyType[%d] BSS[%d]\n", ePhyType, pCurrBSS->eNetworkTypeInUse);
221 continue;
225 if (pMgmt->eAuthenMode < WMAC_AUTH_WPA) {
226 if (pCurrBSS->bWPAValid == TRUE) {
227 // WPA AP will reject connection of station without WPA enable.
228 continue;
230 } else if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
231 (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK)) {
232 if (pCurrBSS->bWPAValid == FALSE) {
233 // station with WPA enable can't join NonWPA AP.
234 continue;
236 } else if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
237 (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
238 if (pCurrBSS->bWPA2Valid == FALSE) {
239 // station with WPA2 enable can't join NonWPA2 AP.
240 continue;
244 //DavidWang
245 pMgmt->pSameBSS[jj].uChannel = pCurrBSS->uChannel;
246 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSpSearchBSSList pSelect1[%02X %02X %02X-%02X %02X %02X]\n",*pCurrBSS->abyBSSID,*(pCurrBSS->abyBSSID+1),*(pCurrBSS->abyBSSID+2),*(pCurrBSS->abyBSSID+3),*(pCurrBSS->abyBSSID+4),*(pCurrBSS->abyBSSID+5));
247 jj++;
249 //DavidWang
250 if (pSelect == NULL) {
251 pSelect = pCurrBSS;
252 } else {
253 // compare RSSI, select signal strong one
254 if (pCurrBSS->uRSSI < pSelect->uRSSI) {
255 pSelect = pCurrBSS;
260 //DavidWang
261 pDevice->bSameBSSMaxNum = jj;
262 //DavidWang
263 if (pSelect != NULL) {
264 pSelect->bSelected = TRUE;
265 if (pDevice->bRoaming == FALSE) {
266 // Einsn Add @20070907
267 memset(pbyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
268 memcpy(pbyDesireSSID,pCurrBSS->abySSID,WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1) ;
271 return(pSelect);
274 return(NULL);
281 * Routine Description:
282 * Clear BSS List
284 * Return Value:
285 * None.
290 void BSSvClearBSSList(void *hDeviceContext, BOOL bKeepCurrBSSID)
292 PSDevice pDevice = (PSDevice)hDeviceContext;
293 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
294 unsigned int ii;
296 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
297 if (bKeepCurrBSSID) {
298 if (pMgmt->sBSSList[ii].bActive &&
299 !compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID,
300 pMgmt->abyCurrBSSID)) {
301 //mike mark: there are two same BSSID in list if that AP is in hidden ssid mode,one 's SSID is null,
302 // but other's is obvious, so if it acssociate with your STA exactly,you must keep two
303 // of them!!!!!!!!!
304 // bKeepCurrBSSID = FALSE;
305 continue;
309 if ((pMgmt->sBSSList[ii].bActive) && (pMgmt->sBSSList[ii].uClearCount < BSS_CLEAR_COUNT)) {
310 pMgmt->sBSSList[ii].uClearCount ++;
311 continue;
314 pMgmt->sBSSList[ii].bActive = FALSE;
315 memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS));
317 BSSvClearAnyBSSJoinRecord(pDevice);
319 return;
326 * Routine Description:
327 * search BSS list by BSSID & SSID if matched
329 * Return Value:
330 * TRUE if found.
333 PKnownBSS BSSpAddrIsInBSSList(void *hDeviceContext,
334 PBYTE abyBSSID,
335 PWLAN_IE_SSID pSSID)
337 PSDevice pDevice = (PSDevice)hDeviceContext;
338 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
339 PKnownBSS pBSSList = NULL;
340 unsigned int ii;
342 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
343 pBSSList = &(pMgmt->sBSSList[ii]);
344 if (pBSSList->bActive) {
345 if (!compare_ether_addr(pBSSList->abyBSSID, abyBSSID)) {
346 if (pSSID->len == ((PWLAN_IE_SSID)pBSSList->abySSID)->len){
347 if (memcmp(pSSID->abySSID,
348 ((PWLAN_IE_SSID)pBSSList->abySSID)->abySSID,
349 pSSID->len) == 0)
350 return pBSSList;
356 return NULL;
363 * Routine Description:
364 * Insert a BSS set into known BSS list
366 * Return Value:
367 * TRUE if success.
371 BOOL BSSbInsertToBSSList(void *hDeviceContext,
372 PBYTE abyBSSIDAddr,
373 QWORD qwTimestamp,
374 WORD wBeaconInterval,
375 WORD wCapInfo,
376 BYTE byCurrChannel,
377 PWLAN_IE_SSID pSSID,
378 PWLAN_IE_SUPP_RATES pSuppRates,
379 PWLAN_IE_SUPP_RATES pExtSuppRates,
380 PERPObject psERP,
381 PWLAN_IE_RSN pRSN,
382 PWLAN_IE_RSN_EXT pRSNWPA,
383 PWLAN_IE_COUNTRY pIE_Country,
384 PWLAN_IE_QUIET pIE_Quiet,
385 unsigned int uIELength,
386 PBYTE pbyIEs,
387 void *pRxPacketContext)
390 PSDevice pDevice = (PSDevice)hDeviceContext;
391 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
392 PSRxMgmtPacket pRxPacket = (PSRxMgmtPacket)pRxPacketContext;
393 PKnownBSS pBSSList = NULL;
394 unsigned int ii;
395 BOOL bParsingQuiet = FALSE;
399 pBSSList = (PKnownBSS)&(pMgmt->sBSSList[0]);
401 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
402 pBSSList = (PKnownBSS)&(pMgmt->sBSSList[ii]);
403 if (!pBSSList->bActive)
404 break;
407 if (ii == MAX_BSS_NUM){
408 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Get free KnowBSS node failed.\n");
409 return FALSE;
411 // save the BSS info
412 pBSSList->bActive = TRUE;
413 memcpy( pBSSList->abyBSSID, abyBSSIDAddr, WLAN_BSSID_LEN);
414 HIDWORD(pBSSList->qwBSSTimestamp) = cpu_to_le32(HIDWORD(qwTimestamp));
415 LODWORD(pBSSList->qwBSSTimestamp) = cpu_to_le32(LODWORD(qwTimestamp));
416 pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
417 pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
418 pBSSList->uClearCount = 0;
420 if (pSSID->len > WLAN_SSID_MAXLEN)
421 pSSID->len = WLAN_SSID_MAXLEN;
422 memcpy( pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
424 pBSSList->uChannel = byCurrChannel;
426 if (pSuppRates->len > WLAN_RATES_MAXLEN)
427 pSuppRates->len = WLAN_RATES_MAXLEN;
428 memcpy( pBSSList->abySuppRates, pSuppRates, pSuppRates->len + WLAN_IEHDR_LEN);
430 if (pExtSuppRates != NULL) {
431 if (pExtSuppRates->len > WLAN_RATES_MAXLEN)
432 pExtSuppRates->len = WLAN_RATES_MAXLEN;
433 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, pExtSuppRates->len + WLAN_IEHDR_LEN);
434 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSbInsertToBSSList: pExtSuppRates->len = %d\n", pExtSuppRates->len);
436 } else {
437 memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
439 pBSSList->sERP.byERP = psERP->byERP;
440 pBSSList->sERP.bERPExist = psERP->bERPExist;
442 // Check if BSS is 802.11a/b/g
443 if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) {
444 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
445 } else {
446 if (pBSSList->sERP.bERPExist == TRUE) {
447 pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
448 } else {
449 pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
453 pBSSList->byRxRate = pRxPacket->byRxRate;
454 pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
455 pBSSList->uRSSI = pRxPacket->uRSSI;
456 pBSSList->bySQ = pRxPacket->bySQ;
458 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
459 (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
460 // assoc with BSS
461 if (pBSSList == pMgmt->pCurrBSS) {
462 bParsingQuiet = TRUE;
466 WPA_ClearRSN(pBSSList);
468 if (pRSNWPA != NULL) {
469 unsigned int uLen = pRSNWPA->len + 2;
471 if (uLen <= (uIELength -
472 (unsigned int) (ULONG_PTR) ((PBYTE) pRSNWPA - pbyIEs))) {
473 pBSSList->wWPALen = uLen;
474 memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
475 WPA_ParseRSN(pBSSList, pRSNWPA);
479 WPA2_ClearRSN(pBSSList);
481 if (pRSN != NULL) {
482 unsigned int uLen = pRSN->len + 2;
484 if (uLen <= (uIELength -
485 (unsigned int) (ULONG_PTR) ((PBYTE) pRSN - pbyIEs))) {
486 pBSSList->wRSNLen = uLen;
487 memcpy(pBSSList->byRSNIE, pRSN, uLen);
488 WPA2vParseRSN(pBSSList, pRSN);
492 if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) || (pBSSList->bWPA2Valid == TRUE)) {
494 PSKeyItem pTransmitKey = NULL;
495 BOOL bIs802_1x = FALSE;
497 for (ii = 0; ii < pBSSList->wAKMSSAuthCount; ii ++) {
498 if (pBSSList->abyAKMSSAuthType[ii] == WLAN_11i_AKMSS_802_1X) {
499 bIs802_1x = TRUE;
500 break;
503 if ((bIs802_1x == TRUE) && (pSSID->len == ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->len) &&
504 ( !memcmp(pSSID->abySSID, ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->abySSID, pSSID->len))) {
506 bAdd_PMKID_Candidate((void *) pDevice,
507 pBSSList->abyBSSID,
508 &pBSSList->sRSNCapObj);
510 if ((pDevice->bLinkPass == TRUE) && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
511 if ((KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, PAIRWISE_KEY, &pTransmitKey) == TRUE) ||
512 (KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, GROUP_KEY, &pTransmitKey) == TRUE)) {
513 pDevice->gsPMKIDCandidate.StatusType = Ndis802_11StatusType_PMKID_CandidateList;
514 pDevice->gsPMKIDCandidate.Version = 1;
522 if (pDevice->bUpdateBBVGA) {
523 // Moniter if RSSI is too strong.
524 pBSSList->byRSSIStatCnt = 0;
525 RFvRSSITodBm(pDevice, (BYTE)(pRxPacket->uRSSI), &pBSSList->ldBmMAX);
526 pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX;
527 pBSSList->ldBmAverRange = pBSSList->ldBmMAX;
528 for (ii = 1; ii < RSSI_STAT_COUNT; ii++)
529 pBSSList->ldBmAverage[ii] = 0;
533 if ((pIE_Country != NULL) &&
534 (pMgmt->b11hEnable == TRUE)) {
535 CARDvSetCountryInfo(pMgmt->pAdapter,
536 pBSSList->eNetworkTypeInUse,
537 pIE_Country);
540 if ((bParsingQuiet == TRUE) && (pIE_Quiet != NULL)) {
541 if ((((PWLAN_IE_QUIET)pIE_Quiet)->len == 8) &&
542 (((PWLAN_IE_QUIET)pIE_Quiet)->byQuietCount != 0)) {
543 // valid EID
544 if (pQuiet == NULL) {
545 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
546 CARDbSetQuiet( pMgmt->pAdapter,
547 TRUE,
548 pQuiet->byQuietCount,
549 pQuiet->byQuietPeriod,
550 *((PWORD)pQuiet->abyQuietDuration),
551 *((PWORD)pQuiet->abyQuietOffset)
553 } else {
554 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
555 CARDbSetQuiet( pMgmt->pAdapter,
556 FALSE,
557 pQuiet->byQuietCount,
558 pQuiet->byQuietPeriod,
559 *((PWORD)pQuiet->abyQuietDuration),
560 *((PWORD)pQuiet->abyQuietOffset)
566 if ((bParsingQuiet == TRUE) &&
567 (pQuiet != NULL)) {
568 CARDbStartQuiet(pMgmt->pAdapter);
572 pBSSList->uIELength = uIELength;
573 if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
574 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
575 memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
577 return TRUE;
583 * Routine Description:
584 * Update BSS set in known BSS list
586 * Return Value:
587 * TRUE if success.
590 // TODO: input structure modify
592 BOOL BSSbUpdateToBSSList(void *hDeviceContext,
593 QWORD qwTimestamp,
594 WORD wBeaconInterval,
595 WORD wCapInfo,
596 BYTE byCurrChannel,
597 BOOL bChannelHit,
598 PWLAN_IE_SSID pSSID,
599 PWLAN_IE_SUPP_RATES pSuppRates,
600 PWLAN_IE_SUPP_RATES pExtSuppRates,
601 PERPObject psERP,
602 PWLAN_IE_RSN pRSN,
603 PWLAN_IE_RSN_EXT pRSNWPA,
604 PWLAN_IE_COUNTRY pIE_Country,
605 PWLAN_IE_QUIET pIE_Quiet,
606 PKnownBSS pBSSList,
607 unsigned int uIELength,
608 PBYTE pbyIEs,
609 void *pRxPacketContext)
611 int ii, jj;
612 PSDevice pDevice = (PSDevice)hDeviceContext;
613 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
614 PSRxMgmtPacket pRxPacket = (PSRxMgmtPacket)pRxPacketContext;
615 signed long ldBm, ldBmSum;
616 BOOL bParsingQuiet = FALSE;
617 // BYTE abyTmpSSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
620 if (pBSSList == NULL)
621 return FALSE;
624 HIDWORD(pBSSList->qwBSSTimestamp) = cpu_to_le32(HIDWORD(qwTimestamp));
625 LODWORD(pBSSList->qwBSSTimestamp) = cpu_to_le32(LODWORD(qwTimestamp));
626 pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
627 pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
628 pBSSList->uClearCount = 0;
629 pBSSList->uChannel = byCurrChannel;
630 // DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSbUpdateToBSSList: pBSSList->uChannel: %d\n", pBSSList->uChannel);
632 if (pSSID->len > WLAN_SSID_MAXLEN)
633 pSSID->len = WLAN_SSID_MAXLEN;
635 if ((pSSID->len != 0) && (pSSID->abySSID[0] != 0))
636 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
637 memcpy(pBSSList->abySuppRates, pSuppRates,pSuppRates->len + WLAN_IEHDR_LEN);
639 if (pExtSuppRates != NULL) {
640 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates,pExtSuppRates->len + WLAN_IEHDR_LEN);
641 } else {
642 memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
644 pBSSList->sERP.byERP = psERP->byERP;
645 pBSSList->sERP.bERPExist = psERP->bERPExist;
647 // Check if BSS is 802.11a/b/g
648 if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) {
649 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
650 } else {
651 if (pBSSList->sERP.bERPExist == TRUE) {
652 pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
653 } else {
654 pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
658 pBSSList->byRxRate = pRxPacket->byRxRate;
659 pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
660 if(bChannelHit)
661 pBSSList->uRSSI = pRxPacket->uRSSI;
662 pBSSList->bySQ = pRxPacket->bySQ;
664 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
665 (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
666 // assoc with BSS
667 if (pBSSList == pMgmt->pCurrBSS) {
668 bParsingQuiet = TRUE;
672 WPA_ClearRSN(pBSSList); //mike update
674 if (pRSNWPA != NULL) {
675 unsigned int uLen = pRSNWPA->len + 2;
676 if (uLen <= (uIELength -
677 (unsigned int) (ULONG_PTR) ((PBYTE) pRSNWPA - pbyIEs))) {
678 pBSSList->wWPALen = uLen;
679 memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
680 WPA_ParseRSN(pBSSList, pRSNWPA);
684 WPA2_ClearRSN(pBSSList); //mike update
686 if (pRSN != NULL) {
687 unsigned int uLen = pRSN->len + 2;
688 if (uLen <= (uIELength -
689 (unsigned int) (ULONG_PTR) ((PBYTE) pRSN - pbyIEs))) {
690 pBSSList->wRSNLen = uLen;
691 memcpy(pBSSList->byRSNIE, pRSN, uLen);
692 WPA2vParseRSN(pBSSList, pRSN);
696 if (pRxPacket->uRSSI != 0) {
697 RFvRSSITodBm(pDevice, (BYTE)(pRxPacket->uRSSI), &ldBm);
698 // Moniter if RSSI is too strong.
699 pBSSList->byRSSIStatCnt++;
700 pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT;
701 pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm;
702 ldBmSum = 0;
703 for (ii = 0, jj = 0; ii < RSSI_STAT_COUNT; ii++) {
704 if (pBSSList->ldBmAverage[ii] != 0) {
705 pBSSList->ldBmMAX =
706 max(pBSSList->ldBmAverage[ii], ldBm);
707 ldBmSum +=
708 pBSSList->ldBmAverage[ii];
709 jj++;
712 pBSSList->ldBmAverRange = ldBmSum /jj;
715 pBSSList->uIELength = uIELength;
716 if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
717 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
718 memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
720 return TRUE;
729 * Routine Description:
730 * Search Node DB table to find the index of matched DstAddr
732 * Return Value:
733 * None
737 BOOL BSSbIsSTAInNodeDB(void *hDeviceContext,
738 PBYTE abyDstAddr,
739 PUINT puNodeIndex)
741 PSDevice pDevice = (PSDevice)hDeviceContext;
742 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
743 unsigned int ii;
745 // Index = 0 reserved for AP Node
746 for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
747 if (pMgmt->sNodeDBTable[ii].bActive) {
748 if (!compare_ether_addr(abyDstAddr,
749 pMgmt->sNodeDBTable[ii].abyMACAddr)) {
750 *puNodeIndex = ii;
751 return TRUE;
756 return FALSE;
763 * Routine Description:
764 * Find an empty node and allocated; if no empty found,
765 * instand used of most inactive one.
767 * Return Value:
768 * None
771 void BSSvCreateOneNode(void *hDeviceContext, PUINT puNodeIndex)
774 PSDevice pDevice = (PSDevice)hDeviceContext;
775 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
776 unsigned int ii;
777 unsigned int BigestCount = 0;
778 unsigned int SelectIndex;
779 struct sk_buff *skb;
780 // Index = 0 reserved for AP Node (In STA mode)
781 // Index = 0 reserved for Broadcast/MultiCast (In AP mode)
782 SelectIndex = 1;
783 for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
784 if (pMgmt->sNodeDBTable[ii].bActive) {
785 if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) {
786 BigestCount = pMgmt->sNodeDBTable[ii].uInActiveCount;
787 SelectIndex = ii;
790 else {
791 break;
795 // if not found replace uInActiveCount is largest one.
796 if ( ii == (MAX_NODE_NUM + 1)) {
797 *puNodeIndex = SelectIndex;
798 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Replace inactive node = %d\n", SelectIndex);
799 // clear ps buffer
800 if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next != NULL) {
801 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue)) != NULL)
802 dev_kfree_skb(skb);
805 else {
806 *puNodeIndex = ii;
809 memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB));
810 pMgmt->sNodeDBTable[*puNodeIndex].bActive = TRUE;
811 pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND;
812 // for AP mode PS queue
813 skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue);
814 pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0;
815 pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0;
816 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create node index = %d\n", ii);
817 return;
824 * Routine Description:
825 * Remove Node by NodeIndex
828 * Return Value:
829 * None
833 void BSSvRemoveOneNode(void *hDeviceContext, unsigned int uNodeIndex)
836 PSDevice pDevice = (PSDevice)hDeviceContext;
837 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
838 BYTE byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
839 struct sk_buff *skb;
842 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue)) != NULL)
843 dev_kfree_skb(skb);
844 // clear context
845 memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB));
846 // clear tx bit map
847 pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &= ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7];
849 return;
853 * Routine Description:
854 * Update AP Node content in Index 0 of KnownNodeDB
857 * Return Value:
858 * None
862 void BSSvUpdateAPNode(void *hDeviceContext,
863 PWORD pwCapInfo,
864 PWLAN_IE_SUPP_RATES pSuppRates,
865 PWLAN_IE_SUPP_RATES pExtSuppRates)
867 PSDevice pDevice = (PSDevice)hDeviceContext;
868 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
869 unsigned int uRateLen = WLAN_RATES_MAXLEN;
871 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
873 pMgmt->sNodeDBTable[0].bActive = TRUE;
874 if (pDevice->byBBType == BB_TYPE_11B) {
875 uRateLen = WLAN_RATES_MAXLEN_11B;
877 pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pSuppRates,
878 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
879 uRateLen);
880 pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pExtSuppRates,
881 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
882 uRateLen);
883 RATEvParseMaxRate((void *) pDevice,
884 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
885 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
886 TRUE,
887 &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
888 &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
889 &(pMgmt->sNodeDBTable[0].wSuppRate),
890 &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
891 &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate)
893 memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN);
894 pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate;
895 pMgmt->sNodeDBTable[0].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo);
896 pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
897 // Auto rate fallback function initiation.
898 // RATEbInit(pDevice);
899 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pMgmt->sNodeDBTable[0].wTxDataRate = %d \n", pMgmt->sNodeDBTable[0].wTxDataRate);
905 * Routine Description:
906 * Add Multicast Node content in Index 0 of KnownNodeDB
909 * Return Value:
910 * None
914 void BSSvAddMulticastNode(void *hDeviceContext)
916 PSDevice pDevice = (PSDevice)hDeviceContext;
917 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
919 if (!pDevice->bEnableHostWEP)
920 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
921 memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN);
922 pMgmt->sNodeDBTable[0].bActive = TRUE;
923 pMgmt->sNodeDBTable[0].bPSEnable = FALSE;
924 skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue);
925 RATEvParseMaxRate((void *) pDevice,
926 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
927 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
928 TRUE,
929 &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
930 &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
931 &(pMgmt->sNodeDBTable[0].wSuppRate),
932 &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
933 &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate)
935 pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate;
936 pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
942 * Routine Description:
945 * Second call back function to update Node DB info & AP link status
948 * Return Value:
949 * none.
953 void BSSvSecondCallBack(void *hDeviceContext)
955 PSDevice pDevice = (PSDevice)hDeviceContext;
956 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
957 unsigned int ii;
958 PWLAN_IE_SSID pItemSSID, pCurrSSID;
959 unsigned int uSleepySTACnt = 0;
960 unsigned int uNonShortSlotSTACnt = 0;
961 unsigned int uLongPreambleSTACnt = 0;
962 viawget_wpa_header *wpahdr; //DavidWang
964 spin_lock_irq(&pDevice->lock);
966 pDevice->uAssocCount = 0;
968 //Power Saving Mode Tx Burst
969 if ( pDevice->bEnablePSMode == TRUE ) {
970 pDevice->ulPSModeWaitTx++;
971 if ( pDevice->ulPSModeWaitTx >= 2 ) {
972 pDevice->ulPSModeWaitTx = 0;
973 pDevice->bPSModeTxBurst = FALSE;
977 pDevice->byERPFlag &=
978 ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1));
980 if (pDevice->wUseProtectCntDown > 0) {
981 pDevice->wUseProtectCntDown --;
983 else {
984 // disable protect mode
985 pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1));
988 if(pDevice->byReAssocCount > 0) {
989 pDevice->byReAssocCount++;
990 if((pDevice->byReAssocCount > 10) && (pDevice->bLinkPass != TRUE)) { //10 sec timeout
991 printk("Re-association timeout!!!\n");
992 pDevice->byReAssocCount = 0;
993 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
994 // if(pDevice->bWPASuppWextEnabled == TRUE)
996 union iwreq_data wrqu;
997 memset(&wrqu, 0, sizeof (wrqu));
998 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
999 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
1000 wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL);
1002 #endif
1004 else if(pDevice->bLinkPass == TRUE)
1005 pDevice->byReAssocCount = 0;
1008 #ifdef SndEvt_ToAPI
1009 if((pMgmt->eCurrState!=WMAC_STATE_ASSOC) &&
1010 (pMgmt->eLastState==WMAC_STATE_ASSOC))
1012 union iwreq_data wrqu;
1013 memset(&wrqu, 0, sizeof(wrqu));
1014 wrqu.data.flags = RT_DISCONNECTED_EVENT_FLAG;
1015 wireless_send_event(pDevice->dev, IWEVCUSTOM, &wrqu, NULL);
1017 pMgmt->eLastState = pMgmt->eCurrState ;
1018 #endif
1020 #ifdef Calcu_LinkQual
1021 s_uCalculateLinkQual((void *)pDevice);
1022 #endif
1024 for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) {
1026 if (pMgmt->sNodeDBTable[ii].bActive) {
1027 // Increase in-activity counter
1028 pMgmt->sNodeDBTable[ii].uInActiveCount++;
1030 if (ii > 0) {
1031 if (pMgmt->sNodeDBTable[ii].uInActiveCount > MAX_INACTIVE_COUNT) {
1032 BSSvRemoveOneNode(pDevice, ii);
1033 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO
1034 "Inactive timeout [%d] sec, STA index = [%d] remove\n", MAX_INACTIVE_COUNT, ii);
1035 continue;
1038 if (pMgmt->sNodeDBTable[ii].eNodeState >= NODE_ASSOC) {
1040 pDevice->uAssocCount++;
1042 // check if Non ERP exist
1043 if (pMgmt->sNodeDBTable[ii].uInActiveCount < ERP_RECOVER_COUNT) {
1044 if (!pMgmt->sNodeDBTable[ii].bShortPreamble) {
1045 pDevice->byERPFlag |= WLAN_SET_ERP_BARKER_MODE(1);
1046 uLongPreambleSTACnt ++;
1048 if (!pMgmt->sNodeDBTable[ii].bERPExist) {
1049 pDevice->byERPFlag |= WLAN_SET_ERP_NONERP_PRESENT(1);
1050 pDevice->byERPFlag |= WLAN_SET_ERP_USE_PROTECTION(1);
1052 if (!pMgmt->sNodeDBTable[ii].bShortSlotTime)
1053 uNonShortSlotSTACnt++;
1057 // check if any STA in PS mode
1058 if (pMgmt->sNodeDBTable[ii].bPSEnable)
1059 uSleepySTACnt++;
1064 // Rate fallback check
1065 if (!pDevice->bFixRate) {
1067 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (ii == 0))
1068 RATEvTxRateFallBack(pDevice, &(pMgmt->sNodeDBTable[ii]));
1070 if (ii > 0) {
1071 // ii = 0 for multicast node (AP & Adhoc)
1072 RATEvTxRateFallBack((void *)pDevice,
1073 &(pMgmt->sNodeDBTable[ii]));
1075 else {
1076 // ii = 0 reserved for unicast AP node (Infra STA)
1077 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)
1078 RATEvTxRateFallBack((void *)pDevice,
1079 &(pMgmt->sNodeDBTable[ii]));
1084 // check if pending PS queue
1085 if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) {
1086 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Index= %d, Queue = %d pending \n",
1087 ii, pMgmt->sNodeDBTable[ii].wEnQueueCnt);
1088 if ((ii >0) && (pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15)) {
1089 BSSvRemoveOneNode(pDevice, ii);
1090 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Pending many queues PS STA Index = %d remove \n", ii);
1091 continue;
1099 if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->byBBType == BB_TYPE_11G)) {
1101 // on/off protect mode
1102 if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) {
1103 if (!pDevice->bProtectMode) {
1104 MACvEnableProtectMD(pDevice);
1105 pDevice->bProtectMode = TRUE;
1108 else {
1109 if (pDevice->bProtectMode) {
1110 MACvDisableProtectMD(pDevice);
1111 pDevice->bProtectMode = FALSE;
1114 // on/off short slot time
1116 if (uNonShortSlotSTACnt > 0) {
1117 if (pDevice->bShortSlotTime) {
1118 pDevice->bShortSlotTime = FALSE;
1119 BBvSetShortSlotTime(pDevice);
1120 vUpdateIFS((void *)pDevice);
1123 else {
1124 if (!pDevice->bShortSlotTime) {
1125 pDevice->bShortSlotTime = TRUE;
1126 BBvSetShortSlotTime(pDevice);
1127 vUpdateIFS((void *)pDevice);
1131 // on/off barker long preamble mode
1133 if (uLongPreambleSTACnt > 0) {
1134 if (!pDevice->bBarkerPreambleMd) {
1135 MACvEnableBarkerPreambleMd(pDevice);
1136 pDevice->bBarkerPreambleMd = TRUE;
1139 else {
1140 if (pDevice->bBarkerPreambleMd) {
1141 MACvDisableBarkerPreambleMd(pDevice);
1142 pDevice->bBarkerPreambleMd = FALSE;
1149 // Check if any STA in PS mode, enable DTIM multicast deliver
1150 if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
1151 if (uSleepySTACnt > 0)
1152 pMgmt->sNodeDBTable[0].bPSEnable = TRUE;
1153 else
1154 pMgmt->sNodeDBTable[0].bPSEnable = FALSE;
1157 pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID;
1158 pCurrSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID;
1160 if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
1161 (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
1163 if (pMgmt->sNodeDBTable[0].bActive) { // Assoc with BSS
1164 // DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Callback inactive Count = [%d]\n", pMgmt->sNodeDBTable[0].uInActiveCount);
1166 if (pDevice->bUpdateBBVGA) {
1167 /* s_vCheckSensitivity((void *) pDevice); */
1168 s_vCheckPreEDThreshold((void *) pDevice);
1171 if ((pMgmt->sNodeDBTable[0].uInActiveCount >= (LOST_BEACON_COUNT/2)) &&
1172 (pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) ) {
1173 pDevice->byBBVGANew = pDevice->abyBBVGA[0];
1174 bScheduleCommand((void *) pDevice,
1175 WLAN_CMD_CHANGE_BBSENSITIVITY,
1176 NULL);
1179 if (pMgmt->sNodeDBTable[0].uInActiveCount >= LOST_BEACON_COUNT) {
1180 pMgmt->sNodeDBTable[0].bActive = FALSE;
1181 pMgmt->eCurrMode = WMAC_MODE_STANDBY;
1182 pMgmt->eCurrState = WMAC_STATE_IDLE;
1183 netif_stop_queue(pDevice->dev);
1184 pDevice->bLinkPass = FALSE;
1185 ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_SLOW);
1186 pDevice->bRoaming = TRUE;
1187 pDevice->bIsRoaming = FALSE;
1189 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Lost AP beacon [%d] sec, disconnected !\n", pMgmt->sNodeDBTable[0].uInActiveCount);
1190 //let wpa supplicant know AP may disconnect.//20080717-01,<Add> by James Li
1191 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
1192 wpahdr = (viawget_wpa_header *)pDevice->skb->data;
1193 wpahdr->type = VIAWGET_DISASSOC_MSG;
1194 wpahdr->resp_ie_len = 0;
1195 wpahdr->req_ie_len = 0;
1196 skb_put(pDevice->skb, sizeof(viawget_wpa_header));
1197 pDevice->skb->dev = pDevice->wpadev;
1198 skb_reset_mac_header(pDevice->skb);
1199 pDevice->skb->pkt_type = PACKET_HOST;
1200 pDevice->skb->protocol = htons(ETH_P_802_2);
1201 memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
1202 netif_rx(pDevice->skb);
1203 pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
1205 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
1206 // if(pDevice->bWPASuppWextEnabled == TRUE)
1208 union iwreq_data wrqu;
1209 memset(&wrqu, 0, sizeof (wrqu));
1210 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1211 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
1212 wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL);
1214 #endif
1217 else if (pItemSSID->len != 0) {
1218 //Davidwang
1219 if ((pDevice->bEnableRoaming == TRUE)&&(!(pMgmt->Cisco_cckm))) {
1220 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "bRoaming %d, !\n", pDevice->bRoaming );
1221 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "bIsRoaming %d, !\n", pDevice->bIsRoaming );
1222 if ((pDevice->bRoaming == TRUE)&&(pDevice->bIsRoaming == TRUE)){
1223 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Fast Roaming ...\n");
1224 BSSvClearBSSList((void *) pDevice, pDevice->bLinkPass);
1225 bScheduleCommand((void *) pDevice,
1226 WLAN_CMD_BSSID_SCAN,
1227 pMgmt->abyDesireSSID);
1228 bScheduleCommand((void *) pDevice,
1229 WLAN_CMD_SSID,
1230 pMgmt->abyDesireSSID);
1231 pDevice->uAutoReConnectTime = 0;
1232 pDevice->uIsroamingTime = 0;
1233 pDevice->bRoaming = FALSE;
1235 // if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
1236 wpahdr = (viawget_wpa_header *)pDevice->skb->data;
1237 wpahdr->type = VIAWGET_CCKM_ROAM_MSG;
1238 wpahdr->resp_ie_len = 0;
1239 wpahdr->req_ie_len = 0;
1240 skb_put(pDevice->skb, sizeof(viawget_wpa_header));
1241 pDevice->skb->dev = pDevice->wpadev;
1242 skb_reset_mac_header(pDevice->skb);
1243 pDevice->skb->pkt_type = PACKET_HOST;
1244 pDevice->skb->protocol = htons(ETH_P_802_2);
1245 memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
1246 netif_rx(pDevice->skb);
1247 pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
1249 // }
1251 else if ((pDevice->bRoaming == FALSE)&&(pDevice->bIsRoaming == TRUE)) {
1252 pDevice->uIsroamingTime++;
1253 if (pDevice->uIsroamingTime >= 20)
1254 pDevice->bIsRoaming = FALSE;
1258 else {
1259 if (pDevice->uAutoReConnectTime < 10) {
1260 pDevice->uAutoReConnectTime++;
1261 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
1262 //network manager support need not do Roaming scan???
1263 if(pDevice->bWPASuppWextEnabled ==TRUE)
1264 pDevice->uAutoReConnectTime = 0;
1265 #endif
1267 else {
1268 //mike use old encryption status for wpa reauthen
1269 if(pDevice->bWPADEVUp)
1270 pDevice->eEncryptionStatus = pDevice->eOldEncryptionStatus;
1272 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Roaming ...\n");
1273 BSSvClearBSSList((void *) pDevice, pDevice->bLinkPass);
1274 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1275 bScheduleCommand((void *) pDevice,
1276 WLAN_CMD_BSSID_SCAN,
1277 pMgmt->abyDesireSSID);
1278 bScheduleCommand((void *) pDevice,
1279 WLAN_CMD_SSID,
1280 pMgmt->abyDesireSSID);
1281 pDevice->uAutoReConnectTime = 0;
1287 if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
1288 // if adhoc started which essid is NULL string, rescaning.
1289 if ((pMgmt->eCurrState == WMAC_STATE_STARTED) && (pCurrSSID->len == 0)) {
1290 if (pDevice->uAutoReConnectTime < 10) {
1291 pDevice->uAutoReConnectTime++;
1293 else {
1294 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Adhoc re-scaning ...\n");
1295 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1296 bScheduleCommand((void *) pDevice, WLAN_CMD_BSSID_SCAN, NULL);
1297 bScheduleCommand((void *) pDevice, WLAN_CMD_SSID, NULL);
1298 pDevice->uAutoReConnectTime = 0;
1301 if (pMgmt->eCurrState == WMAC_STATE_JOINTED) {
1303 if (pDevice->bUpdateBBVGA) {
1304 /* s_vCheckSensitivity((void *) pDevice); */
1305 s_vCheckPreEDThreshold((void *) pDevice);
1307 if (pMgmt->sNodeDBTable[0].uInActiveCount >=ADHOC_LOST_BEACON_COUNT) {
1308 DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO "Lost other STA beacon [%d] sec, started !\n", pMgmt->sNodeDBTable[0].uInActiveCount);
1309 pMgmt->sNodeDBTable[0].uInActiveCount = 0;
1310 pMgmt->eCurrState = WMAC_STATE_STARTED;
1311 netif_stop_queue(pDevice->dev);
1312 pDevice->bLinkPass = FALSE;
1313 ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_SLOW);
1318 if (pDevice->bLinkPass == TRUE) {
1319 if (netif_queue_stopped(pDevice->dev))
1320 netif_wake_queue(pDevice->dev);
1323 spin_unlock_irq(&pDevice->lock);
1325 pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
1326 add_timer(&pMgmt->sTimerSecondCallback);
1327 return;
1332 * Routine Description:
1335 * Update Tx attemps, Tx failure counter in Node DB
1338 * Return Value:
1339 * none.
1343 void BSSvUpdateNodeTxCounter(void *hDeviceContext,
1344 PSStatCounter pStatistic,
1345 BYTE byTSR,
1346 BYTE byPktNO)
1348 PSDevice pDevice = (PSDevice)hDeviceContext;
1349 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
1350 unsigned int uNodeIndex = 0;
1351 BYTE byTxRetry;
1352 WORD wRate;
1353 WORD wFallBackRate = RATE_1M;
1354 BYTE byFallBack;
1355 unsigned int ii;
1356 PBYTE pbyDestAddr;
1357 BYTE byPktNum;
1358 WORD wFIFOCtl;
1360 byPktNum = (byPktNO & 0x0F) >> 4;
1361 byTxRetry = (byTSR & 0xF0) >> 4;
1362 wRate = (WORD) (byPktNO & 0xF0) >> 4;
1363 wFIFOCtl = pStatistic->abyTxPktInfo[byPktNum].wFIFOCtl;
1364 pbyDestAddr = (PBYTE) &( pStatistic->abyTxPktInfo[byPktNum].abyDestAddr[0]);
1366 if (wFIFOCtl & FIFOCTL_AUTO_FB_0) {
1367 byFallBack = AUTO_FB_0;
1368 } else if (wFIFOCtl & FIFOCTL_AUTO_FB_1) {
1369 byFallBack = AUTO_FB_1;
1370 } else {
1371 byFallBack = AUTO_FB_NONE;
1374 // Only Unicast using support rates
1375 if (wFIFOCtl & FIFOCTL_NEEDACK) {
1376 //DBG_PRN_GRP21(("Device %08X, wRate %04X, byTSR %02X\n", hDeviceContext, wRate, byTSR));
1377 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
1378 pMgmt->sNodeDBTable[0].uTxAttempts += 1;
1379 if ( !(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
1380 // transmit success, TxAttempts at least plus one
1381 pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++;
1382 if ( (byFallBack == AUTO_FB_NONE) ||
1383 (wRate < RATE_18M) ) {
1384 wFallBackRate = wRate;
1385 } else if (byFallBack == AUTO_FB_0) {
1386 if (byTxRetry < 5)
1387 wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry];
1388 else
1389 wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1390 } else if (byFallBack == AUTO_FB_1) {
1391 if (byTxRetry < 5)
1392 wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry];
1393 else
1394 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1396 pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++;
1397 } else {
1398 pMgmt->sNodeDBTable[0].uTxFailures ++;
1400 pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry;
1401 if (byTxRetry != 0) {
1402 pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE]+=byTxRetry;
1403 if ( (byFallBack == AUTO_FB_NONE) ||
1404 (wRate < RATE_18M) ) {
1405 pMgmt->sNodeDBTable[0].uTxFail[wRate]+=byTxRetry;
1406 } else if (byFallBack == AUTO_FB_0) {
1407 for (ii = 0; ii < byTxRetry; ii++) {
1408 if (ii < 5)
1409 wFallBackRate =
1410 awHWRetry0[wRate-RATE_18M][ii];
1411 else
1412 wFallBackRate =
1413 awHWRetry0[wRate-RATE_18M][4];
1414 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1416 } else if (byFallBack == AUTO_FB_1) {
1417 for (ii = 0; ii < byTxRetry; ii++) {
1418 if (ii < 5)
1419 wFallBackRate =
1420 awHWRetry1[wRate-RATE_18M][ii];
1421 else
1422 wFallBackRate =
1423 awHWRetry1[wRate-RATE_18M][4];
1424 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1430 if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ||
1431 (pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) {
1433 if (BSSbIsSTAInNodeDB((void *) pDevice,
1434 pbyDestAddr,
1435 &uNodeIndex)) {
1436 pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1;
1437 if ( !(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
1438 // transmit success, TxAttempts at least plus one
1439 pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
1440 if ( (byFallBack == AUTO_FB_NONE) ||
1441 (wRate < RATE_18M) ) {
1442 wFallBackRate = wRate;
1443 } else if (byFallBack == AUTO_FB_0) {
1444 if (byTxRetry < 5)
1445 wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry];
1446 else
1447 wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1448 } else if (byFallBack == AUTO_FB_1) {
1449 if (byTxRetry < 5)
1450 wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry];
1451 else
1452 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1454 pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++;
1455 } else {
1456 pMgmt->sNodeDBTable[uNodeIndex].uTxFailures ++;
1458 pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry;
1459 if (byTxRetry != 0) {
1460 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE]+=byTxRetry;
1461 if ( (byFallBack == AUTO_FB_NONE) ||
1462 (wRate < RATE_18M) ) {
1463 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate]+=byTxRetry;
1464 } else if (byFallBack == AUTO_FB_0) {
1465 for (ii = 0; ii < byTxRetry; ii++) {
1466 if (ii < 5)
1467 wFallBackRate =
1468 awHWRetry0[wRate-RATE_18M][ii];
1469 else
1470 wFallBackRate =
1471 awHWRetry0[wRate-RATE_18M][4];
1472 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1474 } else if (byFallBack == AUTO_FB_1) {
1475 for (ii = 0; ii < byTxRetry; ii++) {
1476 if (ii < 5)
1477 wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
1478 else
1479 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1480 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1488 return;
1495 * Routine Description:
1496 * Clear Nodes & skb in DB Table
1499 * Parameters:
1500 * In:
1501 * hDeviceContext - The adapter context.
1502 * uStartIndex - starting index
1503 * Out:
1504 * none
1506 * Return Value:
1507 * None.
1511 void BSSvClearNodeDBTable(void *hDeviceContext,
1512 unsigned int uStartIndex)
1514 PSDevice pDevice = (PSDevice)hDeviceContext;
1515 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
1516 struct sk_buff *skb;
1517 unsigned int ii;
1519 for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) {
1520 if (pMgmt->sNodeDBTable[ii].bActive) {
1521 // check if sTxPSQueue has been initial
1522 if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next != NULL) {
1523 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue)) != NULL){
1524 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "PS skb != NULL %d\n", ii);
1525 dev_kfree_skb(skb);
1528 memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB));
1532 return;
1535 void s_vCheckSensitivity(void *hDeviceContext)
1537 PSDevice pDevice = (PSDevice)hDeviceContext;
1538 PKnownBSS pBSSList = NULL;
1539 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
1540 int ii;
1542 if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) ||
1543 ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) {
1544 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID);
1545 if (pBSSList != NULL) {
1546 /* Update BB register if RSSI is too strong */
1547 signed long LocalldBmAverage = 0;
1548 signed long uNumofdBm = 0;
1549 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
1550 if (pBSSList->ldBmAverage[ii] != 0) {
1551 uNumofdBm ++;
1552 LocalldBmAverage += pBSSList->ldBmAverage[ii];
1555 if (uNumofdBm > 0) {
1556 LocalldBmAverage = LocalldBmAverage/uNumofdBm;
1557 for (ii=0;ii<BB_VGA_LEVEL;ii++) {
1558 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"LocalldBmAverage:%ld, %ld %02x\n", LocalldBmAverage, pDevice->ldBmThreshold[ii], pDevice->abyBBVGA[ii]);
1559 if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) {
1560 pDevice->byBBVGANew = pDevice->abyBBVGA[ii];
1561 break;
1564 if (pDevice->byBBVGANew != pDevice->byBBVGACurrent) {
1565 pDevice->uBBVGADiffCount++;
1566 if (pDevice->uBBVGADiffCount >= BB_VGA_CHANGE_THRESHOLD)
1567 bScheduleCommand((void *) pDevice,
1568 WLAN_CMD_CHANGE_BBSENSITIVITY,
1569 NULL);
1570 } else {
1571 pDevice->uBBVGADiffCount = 0;
1578 #ifdef Calcu_LinkQual
1579 void s_uCalculateLinkQual(void *hDeviceContext)
1581 PSDevice pDevice = (PSDevice)hDeviceContext;
1582 unsigned long TxOkRatio, TxCnt;
1583 unsigned long RxOkRatio, RxCnt;
1584 unsigned long RssiRatio;
1585 long ldBm;
1587 TxCnt = pDevice->scStatistic.TxNoRetryOkCount +
1588 pDevice->scStatistic.TxRetryOkCount +
1589 pDevice->scStatistic.TxFailCount;
1590 RxCnt = pDevice->scStatistic.RxFcsErrCnt +
1591 pDevice->scStatistic.RxOkCnt;
1592 TxOkRatio = (TxCnt < 6) ? 4000:((pDevice->scStatistic.TxNoRetryOkCount * 4000) / TxCnt);
1593 RxOkRatio = (RxCnt < 6) ? 2000:((pDevice->scStatistic.RxOkCnt * 2000) / RxCnt);
1594 //decide link quality
1595 if(pDevice->bLinkPass !=TRUE)
1597 // printk("s_uCalculateLinkQual-->Link disconnect and Poor quality**\n");
1598 pDevice->scStatistic.LinkQuality = 0;
1599 pDevice->scStatistic.SignalStren = 0;
1601 else
1603 RFvRSSITodBm(pDevice, (BYTE)(pDevice->uCurrRSSI), &ldBm);
1604 if(-ldBm < 50) {
1605 RssiRatio = 4000;
1607 else if(-ldBm > 90) {
1608 RssiRatio = 0;
1610 else {
1611 RssiRatio = (40-(-ldBm-50))*4000/40;
1613 pDevice->scStatistic.SignalStren = RssiRatio/40;
1614 pDevice->scStatistic.LinkQuality = (RssiRatio+TxOkRatio+RxOkRatio)/100;
1616 pDevice->scStatistic.RxFcsErrCnt = 0;
1617 pDevice->scStatistic.RxOkCnt = 0;
1618 pDevice->scStatistic.TxFailCount = 0;
1619 pDevice->scStatistic.TxNoRetryOkCount = 0;
1620 pDevice->scStatistic.TxRetryOkCount = 0;
1621 return;
1623 #endif
1625 void BSSvClearAnyBSSJoinRecord(void *hDeviceContext)
1627 PSDevice pDevice = (PSDevice)hDeviceContext;
1628 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
1629 unsigned int ii;
1631 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
1632 pMgmt->sBSSList[ii].bSelected = FALSE;
1634 return;
1637 void s_vCheckPreEDThreshold(void *hDeviceContext)
1639 PSDevice pDevice = (PSDevice)hDeviceContext;
1640 PKnownBSS pBSSList = NULL;
1641 PSMgmtObject pMgmt = &(pDevice->sMgmtObj);
1643 if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) ||
1644 ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) {
1645 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID);
1646 if (pBSSList != NULL) {
1647 pDevice->byBBPreEDRSSI = (BYTE) (~(pBSSList->ldBmAverRange) + 1);
1648 BBvUpdatePreEDThreshold(pDevice, FALSE);
1651 return;