drivers/staging/vt6655/bssdb.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   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.
   9  *
  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.
  14  *
  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.
  18  *
  19  * File: bssdb.c
  20  *
  21  * Purpose: Handles the Basic Service Set & Node Database functions
  22  *
  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  *      BSSDBbIsSTAInNodeDB - 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
  33  *
  34  * Revision History:
  35  *
  36  * Author: Lyndon Chen
  37  *
  38  * Date: July 17, 2002
  39  *
  40  */
  41
  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 "channel.h"
  57 #include "mac.h"
  58 #include "wpa2.h"
  59 #include "iowpa.h"
  60
  61 /*---------------------  Static Definitions -------------------------*/
  62
  63 /*---------------------  Static Classes  ----------------------------*/
  64
  65 /*---------------------  Static Variables  --------------------------*/
  66 static const unsigned short awHWRetry0[5][5] = {
  67         {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M},
  68         {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M},
  69         {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M},
  70         {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M},
  71         {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M}
  72 };
  73 static const unsigned short awHWRetry1[5][5] = {
  74         {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M},
  75         {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M},
  76         {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M},
  77         {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M},
  78         {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M}
  79 };
  80
  81 /*---------------------  Static Functions  --------------------------*/
  82
  83 void s_vCheckSensitivity(
  84         void *hDeviceContext
  85 );
  86
  87 #ifdef Calcu_LinkQual
  88 void s_uCalculateLinkQual(
  89         void *hDeviceContext
  90 );
  91 #endif
  92
  93 void s_vCheckPreEDThreshold(
  94         void *hDeviceContext
  95 );
  96 /*---------------------  Export Variables  --------------------------*/
  97
  98 /*---------------------  Export Functions  --------------------------*/
  99
 100 /*+
 101  *
 102  * Routine Description:
 103  *    Search known BSS list for Desire SSID or BSSID.
 104  *
 105  * Return Value:
 106  *    PTR to KnownBSS or NULL
 107  *
 108  -*/
 109
 110 PKnownBSS
 111 BSSpSearchBSSList(
 112         void *hDeviceContext,
 113         unsigned char *pbyDesireBSSID,
 114         unsigned char *pbyDesireSSID,
 115         CARD_PHY_TYPE  ePhyType
 116 )
 117 {
 118         struct vnt_private *pDevice = hDeviceContext;
 119         PSMgmtObject    pMgmt = pDevice->pMgmt;
 120         unsigned char *pbyBSSID = NULL;
 121         PWLAN_IE_SSID   pSSID = NULL;
 122         PKnownBSS       pCurrBSS = NULL;
 123         PKnownBSS       pSelect = NULL;
 124         unsigned char ZeroBSSID[WLAN_BSSID_LEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 125         unsigned int ii = 0;
 126
 127         if (pbyDesireBSSID != NULL) {
 128                 pr_debug("BSSpSearchBSSList BSSID[%pM]\n", pbyDesireBSSID);
 129                 if ((!is_broadcast_ether_addr(pbyDesireBSSID)) &&
 130                     (memcmp(pbyDesireBSSID, ZeroBSSID, 6) != 0))
 131                         pbyBSSID = pbyDesireBSSID;
 132         }
 133         if (pbyDesireSSID != NULL) {
 134                 if (((PWLAN_IE_SSID)pbyDesireSSID)->len != 0)
 135                         pSSID = (PWLAN_IE_SSID) pbyDesireSSID;
 136         }
 137
 138         if (pbyBSSID != NULL) {
 139                 /* match BSSID first */
 140                 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 141                         pCurrBSS = &(pMgmt->sBSSList[ii]);
 142                         if (!pDevice->bLinkPass)
 143                                 pCurrBSS->bSelected = false;
 144                         if ((pCurrBSS->bActive) &&
 145                             (!pCurrBSS->bSelected)) {
 146                                 if (ether_addr_equal(pCurrBSS->abyBSSID,
 147                                                      pbyBSSID)) {
 148                                         if (pSSID != NULL) {
 149                                                 /* compare ssid */
 150                                                 if (!memcmp(pSSID->abySSID,
 151                                                             ((PWLAN_IE_SSID)pCurrBSS->abySSID)->abySSID,
 152                                                             pSSID->len)) {
 153                                                         if ((pMgmt->eConfigMode == WMAC_CONFIG_AUTO) ||
 154                                                             ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
 155                                                             ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))
 156 ) {
 157                                                                 pCurrBSS->bSelected = true;
 158                                                                 return pCurrBSS;
 159                                                         }
 160                                                 }
 161                                         } else {
 162                                                 if ((pMgmt->eConfigMode == WMAC_CONFIG_AUTO) ||
 163                                                     ((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo)) ||
 164                                                     ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo))
 165 ) {
 166                                                         pCurrBSS->bSelected = true;
 167                                                         return pCurrBSS;
 168                                                 }
 169                                         }
 170                                 }
 171                         }
 172                 }
 173         } else {
 174                 /* ignore BSSID */
 175                 for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 176                         pCurrBSS = &(pMgmt->sBSSList[ii]);
 177                         /* 2007-0721-01<Add>by MikeLiu */
 178                         pCurrBSS->bSelected = false;
 179                         if (pCurrBSS->bActive) {
 180                                 if (pSSID != NULL) {
 181                                         /* matched SSID */
 182                                         if (!!memcmp(pSSID->abySSID,
 183                                                      ((PWLAN_IE_SSID)pCurrBSS->abySSID)->abySSID,
 184                                                      pSSID->len) ||
 185                                             (pSSID->len != ((PWLAN_IE_SSID)pCurrBSS->abySSID)->len)) {
 186                                                 /* SSID not match skip this BSS */
 187                                                 continue;
 188                                         }
 189                                 }
 190                                 if (((pMgmt->eConfigMode == WMAC_CONFIG_IBSS_STA) && WLAN_GET_CAP_INFO_ESS(pCurrBSS->wCapInfo)) ||
 191                                     ((pMgmt->eConfigMode == WMAC_CONFIG_ESS_STA) && WLAN_GET_CAP_INFO_IBSS(pCurrBSS->wCapInfo))
 192 ) {
 193                                         /* Type not match skip this BSS */
 194                                         pr_debug("BSS type mismatch.... Config[%d] BSS[0x%04x]\n",
 195                                                  pMgmt->eConfigMode,
 196                                                  pCurrBSS->wCapInfo);
 197                                         continue;
 198                                 }
 199
 200                                 if (ePhyType != PHY_TYPE_AUTO) {
 201                                         if (((ePhyType == PHY_TYPE_11A) && (PHY_TYPE_11A != pCurrBSS->eNetworkTypeInUse)) ||
 202                                             ((ePhyType != PHY_TYPE_11A) && (PHY_TYPE_11A == pCurrBSS->eNetworkTypeInUse))) {
 203                                                 /* PhyType not match skip this BSS */
 204                                                 pr_debug("Physical type mismatch.... ePhyType[%d] BSS[%d]\n",
 205                                                          ePhyType,
 206                                                          pCurrBSS->eNetworkTypeInUse);
 207                                                 continue;
 208                                         }
 209                                 }
 210
 211                                 if (pSelect == NULL) {
 212                                         pSelect = pCurrBSS;
 213                                 } else {
 214                                         /* compare RSSI, select signal strong one */
 215                                         if (pCurrBSS->uRSSI < pSelect->uRSSI)
 216                                                 pSelect = pCurrBSS;
 217                                 }
 218                         }
 219                 }
 220                 if (pSelect != NULL) {
 221                         pSelect->bSelected = true;
 222                         return pSelect;
 223                 }
 224         }
 225         return NULL;
 226 }
 227
 228 /*+
 229  *
 230  * Routine Description:
 231  *    Clear BSS List
 232  *
 233  * Return Value:
 234  *    None.
 235  *
 236  -*/
 237
 238 void
 239 BSSvClearBSSList(
 240         void *hDeviceContext,
 241         bool bKeepCurrBSSID
 242 )
 243 {
 244         struct vnt_private *pDevice = hDeviceContext;
 245         PSMgmtObject    pMgmt = pDevice->pMgmt;
 246         unsigned int ii;
 247
 248         for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 249                 if (bKeepCurrBSSID) {
 250                         if (pMgmt->sBSSList[ii].bActive &&
 251                             ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
 252                                              pMgmt->abyCurrBSSID)) {
 253                                 continue;
 254                         }
 255                 }
 256
 257                 if ((pMgmt->sBSSList[ii].bActive) && (pMgmt->sBSSList[ii].uClearCount < BSS_CLEAR_COUNT)) {
 258                         pMgmt->sBSSList[ii].uClearCount++;
 259                         continue;
 260                 }
 261
 262                 pMgmt->sBSSList[ii].bActive = false;
 263                 memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS));
 264         }
 265         BSSvClearAnyBSSJoinRecord(pDevice);
 266 }
 267
 268 /*+
 269  *
 270  * Routine Description:
 271  *    search BSS list by BSSID & SSID if matched
 272  *
 273  * Return Value:
 274  *    true if found.
 275  *
 276  -*/
 277 PKnownBSS
 278 BSSpAddrIsInBSSList(
 279         void *hDeviceContext,
 280         unsigned char *abyBSSID,
 281         PWLAN_IE_SSID pSSID
 282 )
 283 {
 284         struct vnt_private *pDevice = hDeviceContext;
 285         PSMgmtObject    pMgmt = pDevice->pMgmt;
 286         PKnownBSS       pBSSList = NULL;
 287         unsigned int ii;
 288
 289         for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 290                 pBSSList = &(pMgmt->sBSSList[ii]);
 291                 if (pBSSList->bActive) {
 292                         if (ether_addr_equal(pBSSList->abyBSSID, abyBSSID)) {
 293                                 if (pSSID->len == ((PWLAN_IE_SSID)pBSSList->abySSID)->len) {
 294                                         if (memcmp(pSSID->abySSID,
 295                                                    ((PWLAN_IE_SSID)pBSSList->abySSID)->abySSID,
 296                                                    pSSID->len) == 0)
 297                                                 return pBSSList;
 298                                 }
 299                         }
 300                 }
 301         }
 302
 303         return NULL;
 304 };
 305
 306 /*+
 307  *
 308  * Routine Description:
 309  *    Insert a BSS set into known BSS list
 310  *
 311  * Return Value:
 312  *    true if success.
 313  *
 314  -*/
 315
 316 bool
 317 BSSbInsertToBSSList(
 318         void *hDeviceContext,
 319         unsigned char *abyBSSIDAddr,
 320         __le64 qwTimestamp,
 321         unsigned short wBeaconInterval,
 322         unsigned short wCapInfo,
 323         unsigned char byCurrChannel,
 324         PWLAN_IE_SSID pSSID,
 325         PWLAN_IE_SUPP_RATES pSuppRates,
 326         PWLAN_IE_SUPP_RATES pExtSuppRates,
 327         PERPObject psERP,
 328         PWLAN_IE_RSN pRSN,
 329         PWLAN_IE_RSN_EXT pRSNWPA,
 330         PWLAN_IE_COUNTRY pIE_Country,
 331         PWLAN_IE_QUIET pIE_Quiet,
 332         unsigned int uIELength,
 333         unsigned char *pbyIEs,
 334         void *pRxPacketContext
 335 )
 336 {
 337         struct vnt_private *pDevice = hDeviceContext;
 338         PSMgmtObject    pMgmt = pDevice->pMgmt;
 339         PSRxMgmtPacket  pRxPacket = (PSRxMgmtPacket)pRxPacketContext;
 340         PKnownBSS       pBSSList = NULL;
 341         unsigned int ii;
 342         bool bParsingQuiet = false;
 343         PWLAN_IE_QUIET  pQuiet = NULL;
 344
 345         pBSSList = (PKnownBSS)&(pMgmt->sBSSList[0]);
 346
 347         for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 348                 pBSSList = (PKnownBSS)&(pMgmt->sBSSList[ii]);
 349                 if (!pBSSList->bActive)
 350                         break;
 351         }
 352
 353         if (ii == MAX_BSS_NUM) {
 354                 pr_debug("Get free KnowBSS node failed\n");
 355                 return false;
 356         }
 357         /* save the BSS info */
 358         pBSSList->bActive = true;
 359         memcpy(pBSSList->abyBSSID, abyBSSIDAddr, WLAN_BSSID_LEN);
 360         pBSSList->qwBSSTimestamp = le64_to_cpu(qwTimestamp);
 361         pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
 362         pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
 363         pBSSList->uClearCount = 0;
 364
 365         if (pSSID->len > WLAN_SSID_MAXLEN)
 366                 pSSID->len = WLAN_SSID_MAXLEN;
 367         memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
 368
 369         pBSSList->uChannel = byCurrChannel;
 370
 371         if (pSuppRates->len > WLAN_RATES_MAXLEN)
 372                 pSuppRates->len = WLAN_RATES_MAXLEN;
 373         memcpy(pBSSList->abySuppRates, pSuppRates, pSuppRates->len + WLAN_IEHDR_LEN);
 374
 375         if (pExtSuppRates != NULL) {
 376                 if (pExtSuppRates->len > WLAN_RATES_MAXLEN)
 377                         pExtSuppRates->len = WLAN_RATES_MAXLEN;
 378                 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, pExtSuppRates->len + WLAN_IEHDR_LEN);
 379                 pr_debug("BSSbInsertToBSSList: pExtSuppRates->len = %d\n",
 380                          pExtSuppRates->len);
 381
 382         } else {
 383                 memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
 384         }
 385         pBSSList->sERP.byERP = psERP->byERP;
 386         pBSSList->sERP.bERPExist = psERP->bERPExist;
 387
 388         /* check if BSS is 802.11a/b/g */
 389         if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) {
 390                 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
 391         } else {
 392                 if (pBSSList->sERP.bERPExist)
 393                         pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
 394                 else
 395                         pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
 396         }
 397
 398         pBSSList->byRxRate = pRxPacket->byRxRate;
 399         pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
 400         pBSSList->uRSSI = pRxPacket->uRSSI;
 401         pBSSList->bySQ = pRxPacket->bySQ;
 402
 403         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 404             (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
 405                 /* assoc with BSS */
 406                 if (pBSSList == pMgmt->pCurrBSS)
 407                         bParsingQuiet = true;
 408         }
 409
 410         WPA_ClearRSN(pBSSList);
 411
 412         if (pRSNWPA != NULL) {
 413                 unsigned int uLen = pRSNWPA->len + 2;
 414
 415                 if (uLen <= (uIELength - (unsigned int)((unsigned char *)pRSNWPA - pbyIEs))) {
 416                         pBSSList->wWPALen = uLen;
 417                         memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
 418                         WPA_ParseRSN(pBSSList, pRSNWPA);
 419                 }
 420         }
 421
 422         WPA2_ClearRSN(pBSSList);
 423
 424         if (pRSN != NULL) {
 425                 unsigned int uLen = pRSN->len + 2;
 426
 427                 if (uLen <= (uIELength - (unsigned int)((unsigned char *)pRSN - pbyIEs))) {
 428                         pBSSList->wRSNLen = uLen;
 429                         memcpy(pBSSList->byRSNIE, pRSN, uLen);
 430                         WPA2vParseRSN(pBSSList, pRSN);
 431                 }
 432         }
 433
 434         if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) || pBSSList->bWPA2Valid) {
 435                 PSKeyItem  pTransmitKey = NULL;
 436                 bool bIs802_1x = false;
 437
 438                 for (ii = 0; ii < pBSSList->wAKMSSAuthCount; ii++) {
 439                         if (pBSSList->abyAKMSSAuthType[ii] == WLAN_11i_AKMSS_802_1X) {
 440                                 bIs802_1x = true;
 441                                 break;
 442                         }
 443                 }
 444                 if (bIs802_1x && (pSSID->len == ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->len) &&
 445                     (!memcmp(pSSID->abySSID, ((PWLAN_IE_SSID)pMgmt->abyDesireSSID)->abySSID, pSSID->len))) {
 446
 447                         if (pDevice->bLinkPass && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
 448                                 if (KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, PAIRWISE_KEY, &pTransmitKey) ||
 449                                     KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, GROUP_KEY, &pTransmitKey)) {
 450                                         pDevice->gsPMKIDCandidate.StatusType = Ndis802_11StatusType_PMKID_CandidateList;
 451                                         pDevice->gsPMKIDCandidate.Version = 1;
 452
 453                                 }
 454
 455                         }
 456                 }
 457         }
 458
 459         if (pDevice->bUpdateBBVGA) {
 460                 /* monitor if RSSI is too strong */
 461                 pBSSList->byRSSIStatCnt = 0;
 462                 RFvRSSITodBm(pDevice, (unsigned char)(pRxPacket->uRSSI), &pBSSList->ldBmMAX);
 463                 pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX;
 464                 for (ii = 1; ii < RSSI_STAT_COUNT; ii++)
 465                         pBSSList->ldBmAverage[ii] = 0;
 466         }
 467
 468         if ((pIE_Country != NULL) && pMgmt->b11hEnable) {
 469                 set_country_info(pMgmt->pAdapter, pBSSList->eNetworkTypeInUse,
 470                                  pIE_Country);
 471         }
 472
 473         if (bParsingQuiet && (pIE_Quiet != NULL)) {
 474                 if ((((PWLAN_IE_QUIET)pIE_Quiet)->len == 8) &&
 475                     (((PWLAN_IE_QUIET)pIE_Quiet)->byQuietCount != 0)) {
 476                         /* valid EID */
 477                         if (pQuiet == NULL) {
 478                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 479                                 CARDbSetQuiet(pMgmt->pAdapter,
 480                                               true,
 481                                               pQuiet->byQuietCount,
 482                                               pQuiet->byQuietPeriod,
 483                                               *((unsigned short *)pQuiet->abyQuietDuration),
 484                                               *((unsigned short *)pQuiet->abyQuietOffset)
 485 );
 486                         } else {
 487                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 488                                 CARDbSetQuiet(pMgmt->pAdapter,
 489                                               false,
 490                                               pQuiet->byQuietCount,
 491                                               pQuiet->byQuietPeriod,
 492                                               *((unsigned short *)pQuiet->abyQuietDuration),
 493                                               *((unsigned short *)pQuiet->abyQuietOffset)
 494                                         );
 495                         }
 496                 }
 497         }
 498
 499         if (bParsingQuiet && (pQuiet != NULL))
 500                 CARDbStartQuiet(pMgmt->pAdapter);
 501
 502         pBSSList->uIELength = uIELength;
 503         if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
 504                 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
 505         memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
 506
 507         return true;
 508 }
 509
 510 /*+
 511  *
 512  * Routine Description:
 513  *    Update BSS set in known BSS list
 514  *
 515  * Return Value:
 516  *    true if success.
 517  *
 518  -*/
 519 /* TODO: input structure modify */
 520
 521 bool
 522 BSSbUpdateToBSSList(
 523         void *hDeviceContext,
 524         __le64 qwTimestamp,
 525         unsigned short wBeaconInterval,
 526         unsigned short wCapInfo,
 527         unsigned char byCurrChannel,
 528         bool bChannelHit,
 529         PWLAN_IE_SSID pSSID,
 530         PWLAN_IE_SUPP_RATES pSuppRates,
 531         PWLAN_IE_SUPP_RATES pExtSuppRates,
 532         PERPObject psERP,
 533         PWLAN_IE_RSN pRSN,
 534         PWLAN_IE_RSN_EXT pRSNWPA,
 535         PWLAN_IE_COUNTRY pIE_Country,
 536         PWLAN_IE_QUIET pIE_Quiet,
 537         PKnownBSS pBSSList,
 538         unsigned int uIELength,
 539         unsigned char *pbyIEs,
 540         void *pRxPacketContext
 541 )
 542 {
 543         int             ii;
 544         struct vnt_private *pDevice = hDeviceContext;
 545         PSMgmtObject    pMgmt = pDevice->pMgmt;
 546         PSRxMgmtPacket  pRxPacket = (PSRxMgmtPacket)pRxPacketContext;
 547         long            ldBm;
 548         bool bParsingQuiet = false;
 549         PWLAN_IE_QUIET  pQuiet = NULL;
 550
 551         if (pBSSList == NULL)
 552                 return false;
 553
 554         pBSSList->qwBSSTimestamp = le64_to_cpu(qwTimestamp);
 555         pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
 556         pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
 557         pBSSList->uClearCount = 0;
 558         pBSSList->uChannel = byCurrChannel;
 559
 560         if (pSSID->len > WLAN_SSID_MAXLEN)
 561                 pSSID->len = WLAN_SSID_MAXLEN;
 562
 563         if ((pSSID->len != 0) && (pSSID->abySSID[0] != 0))
 564                 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
 565         memcpy(pBSSList->abySuppRates, pSuppRates, pSuppRates->len + WLAN_IEHDR_LEN);
 566
 567         if (pExtSuppRates != NULL)
 568                 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, pExtSuppRates->len + WLAN_IEHDR_LEN);
 569         else
 570                 memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
 571         pBSSList->sERP.byERP = psERP->byERP;
 572         pBSSList->sERP.bERPExist = psERP->bERPExist;
 573
 574         /* check if BSS is 802.11a/b/g */
 575         if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) {
 576                 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
 577         } else {
 578                 if (pBSSList->sERP.bERPExist)
 579                         pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
 580                 else
 581                         pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
 582         }
 583
 584         pBSSList->byRxRate = pRxPacket->byRxRate;
 585         pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
 586         if (bChannelHit)
 587                 pBSSList->uRSSI = pRxPacket->uRSSI;
 588         pBSSList->bySQ = pRxPacket->bySQ;
 589
 590         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 591             (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
 592                 /* assoc with BSS */
 593                 if (pBSSList == pMgmt->pCurrBSS)
 594                         bParsingQuiet = true;
 595         }
 596
 597         WPA_ClearRSN(pBSSList);         /* mike update */
 598
 599         if (pRSNWPA != NULL) {
 600                 unsigned int uLen = pRSNWPA->len + 2;
 601
 602                 if (uLen <= (uIELength - (unsigned int)((unsigned char *)pRSNWPA - pbyIEs))) {
 603                         pBSSList->wWPALen = uLen;
 604                         memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
 605                         WPA_ParseRSN(pBSSList, pRSNWPA);
 606                 }
 607         }
 608
 609         WPA2_ClearRSN(pBSSList);  /* mike update */
 610
 611         if (pRSN != NULL) {
 612                 unsigned int uLen = pRSN->len + 2;
 613
 614                 if (uLen <= (uIELength - (unsigned int)((unsigned char *)pRSN - pbyIEs))) {
 615                         pBSSList->wRSNLen = uLen;
 616                         memcpy(pBSSList->byRSNIE, pRSN, uLen);
 617                         WPA2vParseRSN(pBSSList, pRSN);
 618                 }
 619         }
 620
 621         if (pRxPacket->uRSSI != 0) {
 622                 RFvRSSITodBm(pDevice, (unsigned char)(pRxPacket->uRSSI), &ldBm);
 623                 /* monitor if RSSI is too strong */
 624                 pBSSList->byRSSIStatCnt++;
 625                 pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT;
 626                 pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm;
 627                 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
 628                         if (pBSSList->ldBmAverage[ii] != 0)
 629                                 pBSSList->ldBmMAX = max(pBSSList->ldBmAverage[ii], ldBm);
 630                 }
 631         }
 632
 633         if ((pIE_Country != NULL) && pMgmt->b11hEnable) {
 634                 set_country_info(pMgmt->pAdapter, pBSSList->eNetworkTypeInUse,
 635                                  pIE_Country);
 636         }
 637
 638         if (bParsingQuiet && (pIE_Quiet != NULL)) {
 639                 if ((((PWLAN_IE_QUIET)pIE_Quiet)->len == 8) &&
 640                     (((PWLAN_IE_QUIET)pIE_Quiet)->byQuietCount != 0)) {
 641                         /* valid EID */
 642                         if (pQuiet == NULL) {
 643                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 644                                 CARDbSetQuiet(pMgmt->pAdapter,
 645                                               true,
 646                                               pQuiet->byQuietCount,
 647                                               pQuiet->byQuietPeriod,
 648                                               *((unsigned short *)pQuiet->abyQuietDuration),
 649                                               *((unsigned short *)pQuiet->abyQuietOffset)
 650 );
 651                         } else {
 652                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 653                                 CARDbSetQuiet(pMgmt->pAdapter,
 654                                               false,
 655                                               pQuiet->byQuietCount,
 656                                               pQuiet->byQuietPeriod,
 657                                               *((unsigned short *)pQuiet->abyQuietDuration),
 658                                               *((unsigned short *)pQuiet->abyQuietOffset)
 659                                         );
 660                         }
 661                 }
 662         }
 663
 664         if (bParsingQuiet && (pQuiet != NULL))
 665                 CARDbStartQuiet(pMgmt->pAdapter);
 666
 667         pBSSList->uIELength = uIELength;
 668         if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
 669                 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
 670         memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
 671
 672         return true;
 673 }
 674
 675 /*+
 676  *
 677  * Routine Description:
 678  *    Search Node DB table to find the index of matched DstAddr
 679  *
 680  * Return Value:
 681  *    None
 682  *
 683  -*/
 684
 685 bool
 686 BSSDBbIsSTAInNodeDB(void *pMgmtObject, unsigned char *abyDstAddr,
 687                     unsigned int *puNodeIndex)
 688 {
 689         PSMgmtObject    pMgmt = (PSMgmtObject) pMgmtObject;
 690         unsigned int ii;
 691
 692         /* Index = 0 reserved for AP Node */
 693         for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
 694                 if (pMgmt->sNodeDBTable[ii].bActive) {
 695                         if (ether_addr_equal(abyDstAddr,
 696                                              pMgmt->sNodeDBTable[ii].abyMACAddr)) {
 697                                 *puNodeIndex = ii;
 698                                 return true;
 699                         }
 700                 }
 701         }
 702
 703         return false;
 704 };
 705
 706 /*+
 707  *
 708  * Routine Description:
 709  *    Find an empty node and allocat it; if there is no empty node,
 710  *    then use the most inactive one.
 711  *
 712  * Return Value:
 713  *    None
 714  *
 715  -*/
 716 void
 717 BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex)
 718 {
 719         struct vnt_private *pDevice = hDeviceContext;
 720         PSMgmtObject    pMgmt = pDevice->pMgmt;
 721         unsigned int ii;
 722         unsigned int BigestCount = 0;
 723         unsigned int SelectIndex;
 724         struct sk_buff  *skb;
 725         /*
 726          * Index = 0 reserved for AP Node (In STA mode)
 727          * Index = 0 reserved for Broadcast/MultiCast (In AP mode)
 728          */
 729         SelectIndex = 1;
 730         for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
 731                 if (pMgmt->sNodeDBTable[ii].bActive) {
 732                         if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) {
 733                                 BigestCount = pMgmt->sNodeDBTable[ii].uInActiveCount;
 734                                 SelectIndex = ii;
 735                         }
 736                 } else {
 737                         break;
 738                 }
 739         }
 740
 741         /* if not found replace uInActiveCount is largest one */
 742         if (ii == (MAX_NODE_NUM + 1)) {
 743                 *puNodeIndex = SelectIndex;
 744                 pr_info("Replace inactive node = %d\n", SelectIndex);
 745                 /* clear ps buffer */
 746                 if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next != NULL) {
 747                         while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue)) != NULL)
 748                                 dev_kfree_skb(skb);
 749                 }
 750         } else {
 751                 *puNodeIndex = ii;
 752         }
 753
 754         memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB));
 755         pMgmt->sNodeDBTable[*puNodeIndex].bActive = true;
 756         pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND;
 757         /* for AP mode PS queue */
 758         skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue);
 759         pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0;
 760         pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0;
 761         pr_debug("Create node index = %d\n", ii);
 762         return;
 763 };
 764
 765 /*+
 766  *
 767  * Routine Description:
 768  *    Remove Node by NodeIndex
 769  *
 770  *
 771  * Return Value:
 772  *    None
 773  *
 774  -*/
 775 void
 776 BSSvRemoveOneNode(
 777         void *hDeviceContext,
 778         unsigned int uNodeIndex
 779 )
 780 {
 781         struct vnt_private *pDevice = hDeviceContext;
 782         PSMgmtObject    pMgmt = pDevice->pMgmt;
 783         unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
 784         struct sk_buff  *skb;
 785
 786         while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue)) != NULL)
 787                 dev_kfree_skb(skb);
 788         /* clear context */
 789         memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB));
 790         /* clear tx bit map */
 791         pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &=  ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7];
 792
 793         return;
 794 };
 795 /*+
 796  *
 797  * Routine Description:
 798  *    Update AP Node content in Index 0 of KnownNodeDB
 799  *
 800  *
 801  * Return Value:
 802  *    None
 803  *
 804  -*/
 805
 806 void
 807 BSSvUpdateAPNode(
 808         void *hDeviceContext,
 809         unsigned short *pwCapInfo,
 810         PWLAN_IE_SUPP_RATES pSuppRates,
 811         PWLAN_IE_SUPP_RATES pExtSuppRates
 812 )
 813 {
 814         struct vnt_private *pDevice = hDeviceContext;
 815         PSMgmtObject    pMgmt = pDevice->pMgmt;
 816         unsigned int uRateLen = WLAN_RATES_MAXLEN;
 817
 818         memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
 819
 820         pMgmt->sNodeDBTable[0].bActive = true;
 821         if (pDevice->eCurrentPHYType == PHY_TYPE_11B)
 822                 uRateLen = WLAN_RATES_MAXLEN_11B;
 823         pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pSuppRates,
 824                                                 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
 825                                                 uRateLen);
 826         pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pExtSuppRates,
 827                                                    (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
 828                                                    uRateLen);
 829         RATEvParseMaxRate((void *)pDevice,
 830                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
 831                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
 832                           true,
 833                           &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
 834                           &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
 835                           &(pMgmt->sNodeDBTable[0].wSuppRate),
 836                           &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
 837                           &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate)
 838 );
 839         memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN);
 840         pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate;
 841         pMgmt->sNodeDBTable[0].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo);
 842         pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
 843         netdev_dbg(pDevice->dev, "BSSvUpdateAPNode:MaxSuppRate is %d\n",
 844                    pMgmt->sNodeDBTable[0].wMaxSuppRate);
 845         /* auto rate fallback function initiation */
 846         pr_debug("pMgmt->sNodeDBTable[0].wTxDataRate = %d\n",
 847                  pMgmt->sNodeDBTable[0].wTxDataRate);
 848 };
 849
 850 /*+
 851  *
 852  * Routine Description:
 853  *    Add Multicast Node content in Index 0 of KnownNodeDB
 854  *
 855  *
 856  * Return Value:
 857  *    None
 858  *
 859  -*/
 860
 861 void
 862 BSSvAddMulticastNode(
 863         void *hDeviceContext
 864 )
 865 {
 866         struct vnt_private *pDevice = hDeviceContext;
 867         PSMgmtObject    pMgmt = pDevice->pMgmt;
 868
 869         if (!pDevice->bEnableHostWEP)
 870                 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
 871         memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN);
 872         pMgmt->sNodeDBTable[0].bActive = true;
 873         pMgmt->sNodeDBTable[0].bPSEnable = false;
 874         skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue);
 875         RATEvParseMaxRate((void *)pDevice,
 876                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
 877                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
 878                           true,
 879                           &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
 880                           &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
 881                           &(pMgmt->sNodeDBTable[0].wSuppRate),
 882                           &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
 883                           &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate)
 884 );
 885         pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate;
 886         netdev_dbg(pDevice->dev,
 887                    "BSSvAddMultiCastNode:pMgmt->sNodeDBTable[0].wTxDataRate is %d\n",
 888                    pMgmt->sNodeDBTable[0].wTxDataRate);
 889         pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
 890 };
 891
 892 /*+
 893  *
 894  * Routine Description:
 895  *
 896  *
 897  *  Second call back function to update Node DB info & AP link status
 898  *
 899  *
 900  * Return Value:
 901  *    none.
 902  *
 903  -*/
 904 void
 905 BSSvSecondCallBack(
 906         void *hDeviceContext
 907 )
 908 {
 909         struct vnt_private *pDevice = hDeviceContext;
 910         PSMgmtObject    pMgmt = pDevice->pMgmt;
 911         unsigned int ii;
 912         PWLAN_IE_SSID   pItemSSID, pCurrSSID;
 913         unsigned int uSleepySTACnt = 0;
 914         unsigned int uNonShortSlotSTACnt = 0;
 915         unsigned int uLongPreambleSTACnt = 0;
 916         viawget_wpa_header *wpahdr;  /* DavidWang */
 917
 918         spin_lock_irq(&pDevice->lock);
 919
 920         pDevice->uAssocCount = 0;
 921
 922         pDevice->byERPFlag &=
 923                 ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1));
 924
 925         if (pDevice->wUseProtectCntDown > 0) {
 926                 pDevice->wUseProtectCntDown--;
 927         } else {
 928                 /* disable protect mode */
 929                 pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1));
 930         }
 931
 932         if (pDevice->eCommandState == WLAN_ASSOCIATE_WAIT) {
 933                 pDevice->byReAssocCount++;
 934                 /* 10 sec timeout */
 935                 if ((pDevice->byReAssocCount > 10) && (!pDevice->bLinkPass)) {
 936                         netdev_info(pDevice->dev, "Re-association timeout!!!\n");
 937                         pDevice->byReAssocCount = 0;
 938 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
 939                         {
 940                                 union iwreq_data  wrqu;
 941
 942                                 memset(&wrqu, 0, sizeof(wrqu));
 943                                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 944                                 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
 945                                 wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL);
 946                         }
 947 #endif
 948                 } else if (pDevice->bLinkPass)
 949                         pDevice->byReAssocCount = 0;
 950         }
 951
 952 #ifdef Calcu_LinkQual
 953         s_uCalculateLinkQual((void *)pDevice);
 954 #endif
 955
 956         for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) {
 957                 if (pMgmt->sNodeDBTable[ii].bActive) {
 958                         /* increase in-activity counter */
 959                         pMgmt->sNodeDBTable[ii].uInActiveCount++;
 960
 961                         if (ii > 0) {
 962                                 if (pMgmt->sNodeDBTable[ii].uInActiveCount > MAX_INACTIVE_COUNT) {
 963                                         BSSvRemoveOneNode(pDevice, ii);
 964                                         pr_debug("Inactive timeout [%d] sec, STA index = [%d] remove\n",
 965                                                  MAX_INACTIVE_COUNT, ii);
 966                                         continue;
 967                                 }
 968
 969                                 if (pMgmt->sNodeDBTable[ii].eNodeState >= NODE_ASSOC) {
 970                                         pDevice->uAssocCount++;
 971
 972                                         /* check if Non ERP exist */
 973                                         if (pMgmt->sNodeDBTable[ii].uInActiveCount < ERP_RECOVER_COUNT) {
 974                                                 if (!pMgmt->sNodeDBTable[ii].bShortPreamble) {
 975                                                         pDevice->byERPFlag |= WLAN_SET_ERP_BARKER_MODE(1);
 976                                                         uLongPreambleSTACnt++;
 977                                                 }
 978                                                 if (!pMgmt->sNodeDBTable[ii].bERPExist) {
 979                                                         pDevice->byERPFlag |= WLAN_SET_ERP_NONERP_PRESENT(1);
 980                                                         pDevice->byERPFlag |= WLAN_SET_ERP_USE_PROTECTION(1);
 981                                                 }
 982                                                 if (!pMgmt->sNodeDBTable[ii].bShortSlotTime)
 983                                                         uNonShortSlotSTACnt++;
 984                                         }
 985                                 }
 986
 987                                 /* check if any STA in PS mode */
 988                                 if (pMgmt->sNodeDBTable[ii].bPSEnable)
 989                                         uSleepySTACnt++;
 990
 991                         }
 992
 993                         /* rate fallback check */
 994                         if (!pDevice->bFixRate) {
 995                                 if (ii > 0) {
 996                                         /* ii = 0 for multicast node (AP & Adhoc) */
 997                                         RATEvTxRateFallBack((void *)pDevice, &(pMgmt->sNodeDBTable[ii]));
 998                                 } else {
 999                                         /* ii = 0 reserved for unicast AP node (Infra STA) */
1000                                         if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)
1001                                                 netdev_dbg(pDevice->dev,
1002                                                            "SecondCallback:Before:TxDataRate is %d\n",
1003                                                            pMgmt->sNodeDBTable[0].wTxDataRate);
1004                                         RATEvTxRateFallBack((void *)pDevice, &(pMgmt->sNodeDBTable[ii]));
1005                                         netdev_dbg(pDevice->dev,
1006                                                    "SecondCallback:After:TxDataRate is %d\n",
1007                                                    pMgmt->sNodeDBTable[0].wTxDataRate);
1008
1009                                 }
1010
1011                         }
1012
1013                         /* check if pending PS queue */
1014                         if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) {
1015                                 pr_debug("Index= %d, Queue = %d pending\n",
1016                                          ii,
1017                                          pMgmt->sNodeDBTable[ii].wEnQueueCnt);
1018                                 if ((ii > 0) && (pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15)) {
1019                                         BSSvRemoveOneNode(pDevice, ii);
1020                                         pr_info("Pending many queues PS STA Index = %d remove\n",
1021                                                 ii);
1022                                         continue;
1023                                 }
1024                         }
1025                 }
1026
1027         }
1028
1029         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->eCurrentPHYType == PHY_TYPE_11G)) {
1030                 /* on/off protect mode */
1031                 if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) {
1032                         if (!pDevice->bProtectMode) {
1033                                 MACvEnableProtectMD(pDevice->PortOffset);
1034                                 pDevice->bProtectMode = true;
1035                         }
1036                 } else {
1037                         if (pDevice->bProtectMode) {
1038                                 MACvDisableProtectMD(pDevice->PortOffset);
1039                                 pDevice->bProtectMode = false;
1040                         }
1041                 }
1042                 /* on/off short slot time */
1043
1044                 if (uNonShortSlotSTACnt > 0) {
1045                         if (pDevice->bShortSlotTime) {
1046                                 pDevice->bShortSlotTime = false;
1047                                 BBvSetShortSlotTime(pDevice);
1048                                 vUpdateIFS((void *)pDevice);
1049                         }
1050                 } else {
1051                         if (!pDevice->bShortSlotTime) {
1052                                 pDevice->bShortSlotTime = true;
1053                                 BBvSetShortSlotTime(pDevice);
1054                                 vUpdateIFS((void *)pDevice);
1055                         }
1056                 }
1057
1058                 /* on/off barker long preamble mode */
1059
1060                 if (uLongPreambleSTACnt > 0) {
1061                         if (!pDevice->bBarkerPreambleMd) {
1062                                 MACvEnableBarkerPreambleMd(pDevice->PortOffset);
1063                                 pDevice->bBarkerPreambleMd = true;
1064                         }
1065                 } else {
1066                         if (pDevice->bBarkerPreambleMd) {
1067                                 MACvDisableBarkerPreambleMd(pDevice->PortOffset);
1068                                 pDevice->bBarkerPreambleMd = false;
1069                         }
1070                 }
1071
1072         }
1073
1074         /* check if any STA in PS mode, enable DTIM multicast deliver */
1075         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
1076                 if (uSleepySTACnt > 0)
1077                         pMgmt->sNodeDBTable[0].bPSEnable = true;
1078                 else
1079                         pMgmt->sNodeDBTable[0].bPSEnable = false;
1080         }
1081
1082         pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID;
1083         pCurrSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID;
1084
1085         if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
1086             (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
1087                 /* assoc with BSS */
1088                 if (pMgmt->sNodeDBTable[0].bActive) {
1089                         if (pDevice->bUpdateBBVGA)
1090                                 s_vCheckPreEDThreshold((void *)pDevice);
1091
1092                         if ((pMgmt->sNodeDBTable[0].uInActiveCount >= (LOST_BEACON_COUNT/2)) &&
1093                             (pDevice->byBBVGACurrent != pDevice->abyBBVGA[0])) {
1094                                 pDevice->byBBVGANew = pDevice->abyBBVGA[0];
1095                         }
1096
1097                         if (pMgmt->sNodeDBTable[0].uInActiveCount >= LOST_BEACON_COUNT) {
1098                                 pMgmt->sNodeDBTable[0].bActive = false;
1099                                 pMgmt->eCurrMode = WMAC_MODE_STANDBY;
1100                                 pMgmt->eCurrState = WMAC_STATE_IDLE;
1101                                 netif_stop_queue(pDevice->dev);
1102                                 pDevice->bLinkPass = false;
1103                                 pDevice->bRoaming = true;
1104                                 pr_info("Lost AP beacon [%d] sec, disconnected !\n",
1105                                         pMgmt->sNodeDBTable[0].uInActiveCount);
1106                                 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
1107                                         wpahdr = (viawget_wpa_header *)pDevice->skb->data;
1108                                         wpahdr->type = VIAWGET_DISASSOC_MSG;
1109                                         wpahdr->resp_ie_len = 0;
1110                                         wpahdr->req_ie_len = 0;
1111                                         skb_put(pDevice->skb, sizeof(viawget_wpa_header));
1112                                         pDevice->skb->dev = pDevice->wpadev;
1113                                         skb_reset_mac_header(pDevice->skb);
1114                                         pDevice->skb->pkt_type = PACKET_HOST;
1115                                         pDevice->skb->protocol = htons(ETH_P_802_2);
1116                                         memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
1117                                         netif_rx(pDevice->skb);
1118                                         pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
1119                                 }
1120 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
1121                                 {
1122                                         union iwreq_data  wrqu;
1123
1124                                         memset(&wrqu, 0, sizeof(wrqu));
1125                                         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1126                                         PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
1127                                         wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL);
1128                                 }
1129 #endif
1130                         }
1131                 } else if (pItemSSID->len != 0) {
1132                         if (pDevice->uAutoReConnectTime < 10) {
1133                                 pDevice->uAutoReConnectTime++;
1134 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
1135                                 /*
1136                                  * network manager support need not do
1137                                  * Roaming scan???
1138                                  */
1139                                 if (pDevice->bWPASuppWextEnabled)
1140                                         pDevice->uAutoReConnectTime = 0;
1141 #endif
1142                         } else {
1143                                 /*
1144                                  * mike use old encryption status
1145                                  * for wpa reauthentication
1146                                  */
1147                                 if (pDevice->bWPADEVUp)
1148                                         pDevice->eEncryptionStatus = pDevice->eOldEncryptionStatus;
1149
1150                                 pr_debug("Roaming ...\n");
1151                                 BSSvClearBSSList((void *)pDevice, pDevice->bLinkPass);
1152                                 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1153                                 pDevice->uAutoReConnectTime = 0;
1154                         }
1155                 }
1156         }
1157
1158         if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
1159                 /* if adhoc started which essid is NULL string, rescanning */
1160                 if ((pMgmt->eCurrState == WMAC_STATE_STARTED) && (pCurrSSID->len == 0)) {
1161                         if (pDevice->uAutoReConnectTime < 10) {
1162                                 pDevice->uAutoReConnectTime++;
1163                         } else {
1164                                 pr_info("Adhoc re-scanning ...\n");
1165                                 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1166                                 pDevice->uAutoReConnectTime = 0;
1167                         }
1168                 }
1169                 if (pMgmt->eCurrState == WMAC_STATE_JOINTED) {
1170                         if (pDevice->bUpdateBBVGA)
1171                                 s_vCheckPreEDThreshold((void *)pDevice);
1172                         if (pMgmt->sNodeDBTable[0].uInActiveCount >= ADHOC_LOST_BEACON_COUNT) {
1173                                 pr_info("Lost other STA beacon [%d] sec, started !\n",
1174                                         pMgmt->sNodeDBTable[0].uInActiveCount);
1175                                 pMgmt->sNodeDBTable[0].uInActiveCount = 0;
1176                                 pMgmt->eCurrState = WMAC_STATE_STARTED;
1177                                 netif_stop_queue(pDevice->dev);
1178                                 pDevice->bLinkPass = false;
1179                         }
1180                 }
1181         }
1182
1183         spin_unlock_irq(&pDevice->lock);
1184
1185         pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
1186         add_timer(&pMgmt->sTimerSecondCallback);
1187 }
1188
1189 /*+
1190  *
1191  * Routine Description:
1192  *
1193  *
1194  *  Update Tx attemps, Tx failure counter in Node DB
1195  *
1196  *
1197  * Return Value:
1198  *    none.
1199  *
1200  -*/
1201
1202 void
1203 BSSvUpdateNodeTxCounter(
1204         void *hDeviceContext,
1205         unsigned char byTsr0,
1206         unsigned char byTsr1,
1207         unsigned char *pbyBuffer,
1208         unsigned int uFIFOHeaderSize
1209 )
1210 {
1211         struct vnt_private *pDevice = hDeviceContext;
1212         PSMgmtObject    pMgmt = pDevice->pMgmt;
1213         unsigned int uNodeIndex = 0;
1214         unsigned char byTxRetry = (byTsr0 & TSR0_NCR);
1215         PSTxBufHead     pTxBufHead;
1216         PS802_11Header  pMACHeader;
1217         unsigned short wRate;
1218         unsigned short wFallBackRate = RATE_1M;
1219         unsigned char byFallBack;
1220         unsigned int ii;
1221
1222         pTxBufHead = (PSTxBufHead) pbyBuffer;
1223         if (pTxBufHead->wFIFOCtl & FIFOCTL_AUTO_FB_0)
1224                 byFallBack = AUTO_FB_0;
1225         else if (pTxBufHead->wFIFOCtl & FIFOCTL_AUTO_FB_1)
1226                 byFallBack = AUTO_FB_1;
1227         else
1228                 byFallBack = AUTO_FB_NONE;
1229         wRate = pTxBufHead->wReserved;
1230
1231         /* Only Unicast using support rates */
1232         if (pTxBufHead->wFIFOCtl & FIFOCTL_NEEDACK) {
1233                 pr_debug("wRate %04X, byTsr0 %02X, byTsr1 %02X\n",
1234                          wRate, byTsr0, byTsr1);
1235                 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
1236                         pMgmt->sNodeDBTable[0].uTxAttempts += 1;
1237                         if ((byTsr1 & TSR1_TERR) == 0) {
1238                                 /* transmit success, TxAttempts at least plus one */
1239                                 pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++;
1240                                 if ((byFallBack == AUTO_FB_NONE) ||
1241                                     (wRate < RATE_18M)) {
1242                                         wFallBackRate = wRate;
1243                                 } else if (byFallBack == AUTO_FB_0) {
1244                                         if (byTxRetry < 5)
1245                                                 wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry];
1246                                         else
1247                                                 wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1248                                 } else if (byFallBack == AUTO_FB_1) {
1249                                         if (byTxRetry < 5)
1250                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry];
1251                                         else
1252                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1253                                 }
1254                                 pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++;
1255                         } else {
1256                                 pMgmt->sNodeDBTable[0].uTxFailures++;
1257                         }
1258                         pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry;
1259                         if (byTxRetry != 0) {
1260                                 pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE] += byTxRetry;
1261                                 if ((byFallBack == AUTO_FB_NONE) ||
1262                                     (wRate < RATE_18M)) {
1263                                         pMgmt->sNodeDBTable[0].uTxFail[wRate] += byTxRetry;
1264                                 } else if (byFallBack == AUTO_FB_0) {
1265                                         for (ii = 0; ii < byTxRetry; ii++) {
1266                                                 if (ii < 5)
1267                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][ii];
1268                                                 else
1269                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1270                                                 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1271                                         }
1272                                 } else if (byFallBack == AUTO_FB_1) {
1273                                         for (ii = 0; ii < byTxRetry; ii++) {
1274                                                 if (ii < 5)
1275                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
1276                                                 else
1277                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1278                                                 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1279                                         }
1280                                 }
1281                         }
1282                 }
1283
1284                 if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ||
1285                     (pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) {
1286                         pMACHeader = (PS802_11Header)(pbyBuffer + uFIFOHeaderSize);
1287
1288                         if (BSSDBbIsSTAInNodeDB((void *)pMgmt,  &(pMACHeader->abyAddr1[0]), &uNodeIndex)) {
1289                                 pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1;
1290                                 if ((byTsr1 & TSR1_TERR) == 0) {
1291                                         /* transmit success, TxAttempts at least plus one */
1292                                         pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
1293                                         if ((byFallBack == AUTO_FB_NONE) ||
1294                                             (wRate < RATE_18M)) {
1295                                                 wFallBackRate = wRate;
1296                                         } else if (byFallBack == AUTO_FB_0) {
1297                                                 if (byTxRetry < 5)
1298                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry];
1299                                                 else
1300                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1301                                         } else if (byFallBack == AUTO_FB_1) {
1302                                                 if (byTxRetry < 5)
1303                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry];
1304                                                 else
1305                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1306                                         }
1307                                         pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++;
1308                                 } else {
1309                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++;
1310                                 }
1311                                 pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry;
1312                                 if (byTxRetry != 0) {
1313                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE] += byTxRetry;
1314                                         if ((byFallBack == AUTO_FB_NONE) ||
1315                                             (wRate < RATE_18M)) {
1316                                                 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate] += byTxRetry;
1317                                         } else if (byFallBack == AUTO_FB_0) {
1318                                                 for (ii = 0; ii < byTxRetry; ii++) {
1319                                                         if (ii < 5)
1320                                                                 wFallBackRate = awHWRetry0[wRate - RATE_18M][ii];
1321                                                         else
1322                                                                 wFallBackRate = awHWRetry0[wRate - RATE_18M][4];
1323                                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1324                                                 }
1325                                         } else if (byFallBack == AUTO_FB_1) {
1326                                                 for (ii = 0; ii < byTxRetry; ii++) {
1327                                                         if (ii < 5)
1328                                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
1329                                                         else
1330                                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1331                                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1332                                                 }
1333                                         }
1334                                 }
1335                         }
1336                 }
1337         }
1338 }
1339
1340 /*+
1341  *
1342  * Routine Description:
1343  *    Clear Nodes & skb in DB Table
1344  *
1345  *
1346  * Parameters:
1347  *  In:
1348  *      hDeviceContext        - The adapter context.
1349  *      uStartIndex           - starting index
1350  *  Out:
1351  *      none
1352  *
1353  * Return Value:
1354  *    None.
1355  *
1356  -*/
1357
1358 void
1359 BSSvClearNodeDBTable(
1360         void *hDeviceContext,
1361         unsigned int uStartIndex
1362 )
1363
1364 {
1365         struct vnt_private *pDevice = hDeviceContext;
1366         PSMgmtObject    pMgmt = pDevice->pMgmt;
1367         struct sk_buff  *skb;
1368         unsigned int ii;
1369
1370         for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) {
1371                 if (pMgmt->sNodeDBTable[ii].bActive) {
1372                         /* check if sTxPSQueue has been initial */
1373                         if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next != NULL) {
1374                                 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue)) != NULL) {
1375                                         pr_debug("PS skb != NULL %d\n", ii);
1376                                         dev_kfree_skb(skb);
1377                                 }
1378                         }
1379                         memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB));
1380                 }
1381         }
1382
1383         return;
1384 };
1385
1386 void s_vCheckSensitivity(
1387         void *hDeviceContext
1388 )
1389 {
1390         struct vnt_private *pDevice = hDeviceContext;
1391         PKnownBSS       pBSSList = NULL;
1392         PSMgmtObject    pMgmt = pDevice->pMgmt;
1393         int             ii;
1394
1395         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) && (pDevice->byRFType == RF_RFMD2959) &&
1396             (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
1397                 return;
1398         }
1399
1400         if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) ||
1401             ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) {
1402                 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID);
1403                 if (pBSSList != NULL) {
1404                         /* Update BB Reg if RSSI is too strong */
1405                         long    LocalldBmAverage = 0;
1406                         long    uNumofdBm = 0;
1407
1408                         for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
1409                                 if (pBSSList->ldBmAverage[ii] != 0) {
1410                                         uNumofdBm++;
1411                                         LocalldBmAverage += pBSSList->ldBmAverage[ii];
1412                                 }
1413                         }
1414                         if (uNumofdBm > 0) {
1415                                 LocalldBmAverage = LocalldBmAverage/uNumofdBm;
1416                                 for (ii = 0; ii < BB_VGA_LEVEL; ii++) {
1417                                         pr_debug("LocalldBmAverage:%ld, %ld %02x\n",
1418                                                  LocalldBmAverage,
1419                                                  pDevice->ldBmThreshold[ii],
1420                                                  pDevice->abyBBVGA[ii]);
1421                                         if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) {
1422                                                 pDevice->byBBVGANew = pDevice->abyBBVGA[ii];
1423                                                 break;
1424                                         }
1425                                 }
1426                                 if (pDevice->byBBVGANew != pDevice->byBBVGACurrent) {
1427                                         pDevice->uBBVGADiffCount++;
1428                                 } else {
1429                                         pDevice->uBBVGADiffCount = 0;
1430                                 }
1431                         }
1432                 }
1433         }
1434 }
1435
1436 void
1437 BSSvClearAnyBSSJoinRecord(
1438         void *hDeviceContext
1439 )
1440 {
1441         struct vnt_private *pDevice = hDeviceContext;
1442         PSMgmtObject    pMgmt = pDevice->pMgmt;
1443         unsigned int ii;
1444
1445         for (ii = 0; ii < MAX_BSS_NUM; ii++)
1446                 pMgmt->sBSSList[ii].bSelected = false;
1447 }
1448
1449 #ifdef Calcu_LinkQual
1450 void s_uCalculateLinkQual(
1451         void *hDeviceContext
1452 )
1453 {
1454         struct vnt_private *pDevice = hDeviceContext;
1455         unsigned long TxOkRatio, TxCnt;
1456         unsigned long RxOkRatio, RxCnt;
1457         unsigned long RssiRatio;
1458         long ldBm;
1459
1460         TxCnt = pDevice->scStatistic.TxNoRetryOkCount +
1461                 pDevice->scStatistic.TxRetryOkCount +
1462                 pDevice->scStatistic.TxFailCount;
1463         RxCnt = pDevice->scStatistic.RxFcsErrCnt +
1464                 pDevice->scStatistic.RxOkCnt;
1465         TxOkRatio = (TxCnt < 6) ? 4000 : ((pDevice->scStatistic.TxNoRetryOkCount * 4000) / TxCnt);
1466         RxOkRatio = (RxCnt < 6) ? 2000 : ((pDevice->scStatistic.RxOkCnt * 2000) / RxCnt);
1467         /* decide link quality */
1468         if (!pDevice->bLinkPass) {
1469                 pDevice->scStatistic.LinkQuality = 0;
1470                 pDevice->scStatistic.SignalStren = 0;
1471         } else {
1472                 RFvRSSITodBm(pDevice, (unsigned char)(pDevice->uCurrRSSI), &ldBm);
1473                 if (-ldBm < 50)
1474                         RssiRatio = 4000;
1475                 else if (-ldBm > 90)
1476                         RssiRatio = 0;
1477                 else
1478                         RssiRatio = (40-(-ldBm-50))*4000/40;
1479                 pDevice->scStatistic.SignalStren = RssiRatio/40;
1480                 pDevice->scStatistic.LinkQuality = (RssiRatio+TxOkRatio+RxOkRatio)/100;
1481         }
1482         pDevice->scStatistic.RxFcsErrCnt = 0;
1483         pDevice->scStatistic.RxOkCnt = 0;
1484         pDevice->scStatistic.TxFailCount = 0;
1485         pDevice->scStatistic.TxNoRetryOkCount = 0;
1486         pDevice->scStatistic.TxRetryOkCount = 0;
1487 }
1488 #endif
1489
1490 void s_vCheckPreEDThreshold(
1491         void *hDeviceContext
1492 )
1493 {
1494         struct vnt_private *pDevice = hDeviceContext;
1495         PKnownBSS       pBSSList = NULL;
1496         PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
1497
1498         if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) ||
1499             ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) {
1500                 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID);
1501                 if (pBSSList != NULL)
1502                         pDevice->byBBPreEDRSSI = (unsigned char) (~(pBSSList->ldBmAverRange) + 1);
1503         }
1504 }