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                         bAdd_PMKID_Candidate((void *)pDevice, pBSSList->abyBSSID, &pBSSList->sRSNCapObj);
 447
 448                         if (pDevice->bLinkPass && (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
 449                                 if (KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, PAIRWISE_KEY, &pTransmitKey) ||
 450                                     KeybGetTransmitKey(&(pDevice->sKey), pDevice->abyBSSID, GROUP_KEY, &pTransmitKey)) {
 451                                         pDevice->gsPMKIDCandidate.StatusType = Ndis802_11StatusType_PMKID_CandidateList;
 452                                         pDevice->gsPMKIDCandidate.Version = 1;
 453
 454                                 }
 455
 456                         }
 457                 }
 458         }
 459
 460         if (pDevice->bUpdateBBVGA) {
 461                 /* monitor if RSSI is too strong */
 462                 pBSSList->byRSSIStatCnt = 0;
 463                 RFvRSSITodBm(pDevice, (unsigned char)(pRxPacket->uRSSI), &pBSSList->ldBmMAX);
 464                 pBSSList->ldBmAverage[0] = pBSSList->ldBmMAX;
 465                 for (ii = 1; ii < RSSI_STAT_COUNT; ii++)
 466                         pBSSList->ldBmAverage[ii] = 0;
 467         }
 468
 469         if ((pIE_Country != NULL) && pMgmt->b11hEnable) {
 470                 set_country_info(pMgmt->pAdapter, pBSSList->eNetworkTypeInUse,
 471                                  pIE_Country);
 472         }
 473
 474         if (bParsingQuiet && (pIE_Quiet != NULL)) {
 475                 if ((((PWLAN_IE_QUIET)pIE_Quiet)->len == 8) &&
 476                     (((PWLAN_IE_QUIET)pIE_Quiet)->byQuietCount != 0)) {
 477                         /* valid EID */
 478                         if (pQuiet == NULL) {
 479                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 480                                 CARDbSetQuiet(pMgmt->pAdapter,
 481                                               true,
 482                                               pQuiet->byQuietCount,
 483                                               pQuiet->byQuietPeriod,
 484                                               *((unsigned short *)pQuiet->abyQuietDuration),
 485                                               *((unsigned short *)pQuiet->abyQuietOffset)
 486 );
 487                         } else {
 488                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 489                                 CARDbSetQuiet(pMgmt->pAdapter,
 490                                               false,
 491                                               pQuiet->byQuietCount,
 492                                               pQuiet->byQuietPeriod,
 493                                               *((unsigned short *)pQuiet->abyQuietDuration),
 494                                               *((unsigned short *)pQuiet->abyQuietOffset)
 495                                         );
 496                         }
 497                 }
 498         }
 499
 500         if (bParsingQuiet && (pQuiet != NULL))
 501                 CARDbStartQuiet(pMgmt->pAdapter);
 502
 503         pBSSList->uIELength = uIELength;
 504         if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
 505                 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
 506         memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
 507
 508         return true;
 509 }
 510
 511 /*+
 512  *
 513  * Routine Description:
 514  *    Update BSS set in known BSS list
 515  *
 516  * Return Value:
 517  *    true if success.
 518  *
 519  -*/
 520 /* TODO: input structure modify */
 521
 522 bool
 523 BSSbUpdateToBSSList(
 524         void *hDeviceContext,
 525         __le64 qwTimestamp,
 526         unsigned short wBeaconInterval,
 527         unsigned short wCapInfo,
 528         unsigned char byCurrChannel,
 529         bool bChannelHit,
 530         PWLAN_IE_SSID pSSID,
 531         PWLAN_IE_SUPP_RATES pSuppRates,
 532         PWLAN_IE_SUPP_RATES pExtSuppRates,
 533         PERPObject psERP,
 534         PWLAN_IE_RSN pRSN,
 535         PWLAN_IE_RSN_EXT pRSNWPA,
 536         PWLAN_IE_COUNTRY pIE_Country,
 537         PWLAN_IE_QUIET pIE_Quiet,
 538         PKnownBSS pBSSList,
 539         unsigned int uIELength,
 540         unsigned char *pbyIEs,
 541         void *pRxPacketContext
 542 )
 543 {
 544         int             ii;
 545         struct vnt_private *pDevice = hDeviceContext;
 546         PSMgmtObject    pMgmt = pDevice->pMgmt;
 547         PSRxMgmtPacket  pRxPacket = (PSRxMgmtPacket)pRxPacketContext;
 548         long            ldBm;
 549         bool bParsingQuiet = false;
 550         PWLAN_IE_QUIET  pQuiet = NULL;
 551
 552         if (pBSSList == NULL)
 553                 return false;
 554
 555         pBSSList->qwBSSTimestamp = le64_to_cpu(qwTimestamp);
 556         pBSSList->wBeaconInterval = cpu_to_le16(wBeaconInterval);
 557         pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
 558         pBSSList->uClearCount = 0;
 559         pBSSList->uChannel = byCurrChannel;
 560
 561         if (pSSID->len > WLAN_SSID_MAXLEN)
 562                 pSSID->len = WLAN_SSID_MAXLEN;
 563
 564         if ((pSSID->len != 0) && (pSSID->abySSID[0] != 0))
 565                 memcpy(pBSSList->abySSID, pSSID, pSSID->len + WLAN_IEHDR_LEN);
 566         memcpy(pBSSList->abySuppRates, pSuppRates, pSuppRates->len + WLAN_IEHDR_LEN);
 567
 568         if (pExtSuppRates != NULL)
 569                 memcpy(pBSSList->abyExtSuppRates, pExtSuppRates, pExtSuppRates->len + WLAN_IEHDR_LEN);
 570         else
 571                 memset(pBSSList->abyExtSuppRates, 0, WLAN_IEHDR_LEN + WLAN_RATES_MAXLEN + 1);
 572         pBSSList->sERP.byERP = psERP->byERP;
 573         pBSSList->sERP.bERPExist = psERP->bERPExist;
 574
 575         /* check if BSS is 802.11a/b/g */
 576         if (pBSSList->uChannel > CB_MAX_CHANNEL_24G) {
 577                 pBSSList->eNetworkTypeInUse = PHY_TYPE_11A;
 578         } else {
 579                 if (pBSSList->sERP.bERPExist)
 580                         pBSSList->eNetworkTypeInUse = PHY_TYPE_11G;
 581                 else
 582                         pBSSList->eNetworkTypeInUse = PHY_TYPE_11B;
 583         }
 584
 585         pBSSList->byRxRate = pRxPacket->byRxRate;
 586         pBSSList->qwLocalTSF = pRxPacket->qwLocalTSF;
 587         if (bChannelHit)
 588                 pBSSList->uRSSI = pRxPacket->uRSSI;
 589         pBSSList->bySQ = pRxPacket->bySQ;
 590
 591         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) &&
 592             (pMgmt->eCurrState == WMAC_STATE_ASSOC)) {
 593                 /* assoc with BSS */
 594                 if (pBSSList == pMgmt->pCurrBSS)
 595                         bParsingQuiet = true;
 596         }
 597
 598         WPA_ClearRSN(pBSSList);         /* mike update */
 599
 600         if (pRSNWPA != NULL) {
 601                 unsigned int uLen = pRSNWPA->len + 2;
 602
 603                 if (uLen <= (uIELength - (unsigned int)((unsigned char *)pRSNWPA - pbyIEs))) {
 604                         pBSSList->wWPALen = uLen;
 605                         memcpy(pBSSList->byWPAIE, pRSNWPA, uLen);
 606                         WPA_ParseRSN(pBSSList, pRSNWPA);
 607                 }
 608         }
 609
 610         WPA2_ClearRSN(pBSSList);  /* mike update */
 611
 612         if (pRSN != NULL) {
 613                 unsigned int uLen = pRSN->len + 2;
 614
 615                 if (uLen <= (uIELength - (unsigned int)((unsigned char *)pRSN - pbyIEs))) {
 616                         pBSSList->wRSNLen = uLen;
 617                         memcpy(pBSSList->byRSNIE, pRSN, uLen);
 618                         WPA2vParseRSN(pBSSList, pRSN);
 619                 }
 620         }
 621
 622         if (pRxPacket->uRSSI != 0) {
 623                 RFvRSSITodBm(pDevice, (unsigned char)(pRxPacket->uRSSI), &ldBm);
 624                 /* monitor if RSSI is too strong */
 625                 pBSSList->byRSSIStatCnt++;
 626                 pBSSList->byRSSIStatCnt %= RSSI_STAT_COUNT;
 627                 pBSSList->ldBmAverage[pBSSList->byRSSIStatCnt] = ldBm;
 628                 for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
 629                         if (pBSSList->ldBmAverage[ii] != 0)
 630                                 pBSSList->ldBmMAX = max(pBSSList->ldBmAverage[ii], ldBm);
 631                 }
 632         }
 633
 634         if ((pIE_Country != NULL) && pMgmt->b11hEnable) {
 635                 set_country_info(pMgmt->pAdapter, pBSSList->eNetworkTypeInUse,
 636                                  pIE_Country);
 637         }
 638
 639         if (bParsingQuiet && (pIE_Quiet != NULL)) {
 640                 if ((((PWLAN_IE_QUIET)pIE_Quiet)->len == 8) &&
 641                     (((PWLAN_IE_QUIET)pIE_Quiet)->byQuietCount != 0)) {
 642                         /* valid EID */
 643                         if (pQuiet == NULL) {
 644                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 645                                 CARDbSetQuiet(pMgmt->pAdapter,
 646                                               true,
 647                                               pQuiet->byQuietCount,
 648                                               pQuiet->byQuietPeriod,
 649                                               *((unsigned short *)pQuiet->abyQuietDuration),
 650                                               *((unsigned short *)pQuiet->abyQuietOffset)
 651 );
 652                         } else {
 653                                 pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
 654                                 CARDbSetQuiet(pMgmt->pAdapter,
 655                                               false,
 656                                               pQuiet->byQuietCount,
 657                                               pQuiet->byQuietPeriod,
 658                                               *((unsigned short *)pQuiet->abyQuietDuration),
 659                                               *((unsigned short *)pQuiet->abyQuietOffset)
 660                                         );
 661                         }
 662                 }
 663         }
 664
 665         if (bParsingQuiet && (pQuiet != NULL))
 666                 CARDbStartQuiet(pMgmt->pAdapter);
 667
 668         pBSSList->uIELength = uIELength;
 669         if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
 670                 pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
 671         memcpy(pBSSList->abyIEs, pbyIEs, pBSSList->uIELength);
 672
 673         return true;
 674 }
 675
 676 /*+
 677  *
 678  * Routine Description:
 679  *    Search Node DB table to find the index of matched DstAddr
 680  *
 681  * Return Value:
 682  *    None
 683  *
 684  -*/
 685
 686 bool
 687 BSSDBbIsSTAInNodeDB(void *pMgmtObject, unsigned char *abyDstAddr,
 688                     unsigned int *puNodeIndex)
 689 {
 690         PSMgmtObject    pMgmt = (PSMgmtObject) pMgmtObject;
 691         unsigned int ii;
 692
 693         /* Index = 0 reserved for AP Node */
 694         for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
 695                 if (pMgmt->sNodeDBTable[ii].bActive) {
 696                         if (ether_addr_equal(abyDstAddr,
 697                                              pMgmt->sNodeDBTable[ii].abyMACAddr)) {
 698                                 *puNodeIndex = ii;
 699                                 return true;
 700                         }
 701                 }
 702         }
 703
 704         return false;
 705 };
 706
 707 /*+
 708  *
 709  * Routine Description:
 710  *    Find an empty node and allocat it; if there is no empty node,
 711  *    then use the most inactive one.
 712  *
 713  * Return Value:
 714  *    None
 715  *
 716  -*/
 717 void
 718 BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex)
 719 {
 720         struct vnt_private *pDevice = hDeviceContext;
 721         PSMgmtObject    pMgmt = pDevice->pMgmt;
 722         unsigned int ii;
 723         unsigned int BigestCount = 0;
 724         unsigned int SelectIndex;
 725         struct sk_buff  *skb;
 726         /*
 727          * Index = 0 reserved for AP Node (In STA mode)
 728          * Index = 0 reserved for Broadcast/MultiCast (In AP mode)
 729          */
 730         SelectIndex = 1;
 731         for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
 732                 if (pMgmt->sNodeDBTable[ii].bActive) {
 733                         if (pMgmt->sNodeDBTable[ii].uInActiveCount > BigestCount) {
 734                                 BigestCount = pMgmt->sNodeDBTable[ii].uInActiveCount;
 735                                 SelectIndex = ii;
 736                         }
 737                 } else {
 738                         break;
 739                 }
 740         }
 741
 742         /* if not found replace uInActiveCount is largest one */
 743         if (ii == (MAX_NODE_NUM + 1)) {
 744                 *puNodeIndex = SelectIndex;
 745                 pr_info("Replace inactive node = %d\n", SelectIndex);
 746                 /* clear ps buffer */
 747                 if (pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue.next != NULL) {
 748                         while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue)) != NULL)
 749                                 dev_kfree_skb(skb);
 750                 }
 751         } else {
 752                 *puNodeIndex = ii;
 753         }
 754
 755         memset(&pMgmt->sNodeDBTable[*puNodeIndex], 0, sizeof(KnownNodeDB));
 756         pMgmt->sNodeDBTable[*puNodeIndex].bActive = true;
 757         pMgmt->sNodeDBTable[*puNodeIndex].uRatePollTimeout = FALLBACK_POLL_SECOND;
 758         /* for AP mode PS queue */
 759         skb_queue_head_init(&pMgmt->sNodeDBTable[*puNodeIndex].sTxPSQueue);
 760         pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0;
 761         pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0;
 762         pr_debug("Create node index = %d\n", ii);
 763         return;
 764 };
 765
 766 /*+
 767  *
 768  * Routine Description:
 769  *    Remove Node by NodeIndex
 770  *
 771  *
 772  * Return Value:
 773  *    None
 774  *
 775  -*/
 776 void
 777 BSSvRemoveOneNode(
 778         void *hDeviceContext,
 779         unsigned int uNodeIndex
 780 )
 781 {
 782         struct vnt_private *pDevice = hDeviceContext;
 783         PSMgmtObject    pMgmt = pDevice->pMgmt;
 784         unsigned char byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
 785         struct sk_buff  *skb;
 786
 787         while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[uNodeIndex].sTxPSQueue)) != NULL)
 788                 dev_kfree_skb(skb);
 789         /* clear context */
 790         memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB));
 791         /* clear tx bit map */
 792         pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &=  ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7];
 793
 794         return;
 795 };
 796 /*+
 797  *
 798  * Routine Description:
 799  *    Update AP Node content in Index 0 of KnownNodeDB
 800  *
 801  *
 802  * Return Value:
 803  *    None
 804  *
 805  -*/
 806
 807 void
 808 BSSvUpdateAPNode(
 809         void *hDeviceContext,
 810         unsigned short *pwCapInfo,
 811         PWLAN_IE_SUPP_RATES pSuppRates,
 812         PWLAN_IE_SUPP_RATES pExtSuppRates
 813 )
 814 {
 815         struct vnt_private *pDevice = hDeviceContext;
 816         PSMgmtObject    pMgmt = pDevice->pMgmt;
 817         unsigned int uRateLen = WLAN_RATES_MAXLEN;
 818
 819         memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
 820
 821         pMgmt->sNodeDBTable[0].bActive = true;
 822         if (pDevice->eCurrentPHYType == PHY_TYPE_11B)
 823                 uRateLen = WLAN_RATES_MAXLEN_11B;
 824         pMgmt->abyCurrSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pSuppRates,
 825                                                 (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
 826                                                 uRateLen);
 827         pMgmt->abyCurrExtSuppRates[1] = RATEuSetIE((PWLAN_IE_SUPP_RATES)pExtSuppRates,
 828                                                    (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
 829                                                    uRateLen);
 830         RATEvParseMaxRate((void *)pDevice,
 831                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
 832                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
 833                           true,
 834                           &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
 835                           &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
 836                           &(pMgmt->sNodeDBTable[0].wSuppRate),
 837                           &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
 838                           &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate)
 839 );
 840         memcpy(pMgmt->sNodeDBTable[0].abyMACAddr, pMgmt->abyCurrBSSID, WLAN_ADDR_LEN);
 841         pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxSuppRate;
 842         pMgmt->sNodeDBTable[0].bShortPreamble = WLAN_GET_CAP_INFO_SHORTPREAMBLE(*pwCapInfo);
 843         pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
 844         netdev_dbg(pDevice->dev, "BSSvUpdateAPNode:MaxSuppRate is %d\n",
 845                    pMgmt->sNodeDBTable[0].wMaxSuppRate);
 846         /* auto rate fallback function initiation */
 847         pr_debug("pMgmt->sNodeDBTable[0].wTxDataRate = %d\n",
 848                  pMgmt->sNodeDBTable[0].wTxDataRate);
 849 };
 850
 851 /*+
 852  *
 853  * Routine Description:
 854  *    Add Multicast Node content in Index 0 of KnownNodeDB
 855  *
 856  *
 857  * Return Value:
 858  *    None
 859  *
 860  -*/
 861
 862 void
 863 BSSvAddMulticastNode(
 864         void *hDeviceContext
 865 )
 866 {
 867         struct vnt_private *pDevice = hDeviceContext;
 868         PSMgmtObject    pMgmt = pDevice->pMgmt;
 869
 870         if (!pDevice->bEnableHostWEP)
 871                 memset(&pMgmt->sNodeDBTable[0], 0, sizeof(KnownNodeDB));
 872         memset(pMgmt->sNodeDBTable[0].abyMACAddr, 0xff, WLAN_ADDR_LEN);
 873         pMgmt->sNodeDBTable[0].bActive = true;
 874         pMgmt->sNodeDBTable[0].bPSEnable = false;
 875         skb_queue_head_init(&pMgmt->sNodeDBTable[0].sTxPSQueue);
 876         RATEvParseMaxRate((void *)pDevice,
 877                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrSuppRates,
 878                           (PWLAN_IE_SUPP_RATES)pMgmt->abyCurrExtSuppRates,
 879                           true,
 880                           &(pMgmt->sNodeDBTable[0].wMaxBasicRate),
 881                           &(pMgmt->sNodeDBTable[0].wMaxSuppRate),
 882                           &(pMgmt->sNodeDBTable[0].wSuppRate),
 883                           &(pMgmt->sNodeDBTable[0].byTopCCKBasicRate),
 884                           &(pMgmt->sNodeDBTable[0].byTopOFDMBasicRate)
 885 );
 886         pMgmt->sNodeDBTable[0].wTxDataRate = pMgmt->sNodeDBTable[0].wMaxBasicRate;
 887         netdev_dbg(pDevice->dev,
 888                    "BSSvAddMultiCastNode:pMgmt->sNodeDBTable[0].wTxDataRate is %d\n",
 889                    pMgmt->sNodeDBTable[0].wTxDataRate);
 890         pMgmt->sNodeDBTable[0].uRatePollTimeout = FALLBACK_POLL_SECOND;
 891 };
 892
 893 /*+
 894  *
 895  * Routine Description:
 896  *
 897  *
 898  *  Second call back function to update Node DB info & AP link status
 899  *
 900  *
 901  * Return Value:
 902  *    none.
 903  *
 904  -*/
 905 void
 906 BSSvSecondCallBack(
 907         void *hDeviceContext
 908 )
 909 {
 910         struct vnt_private *pDevice = hDeviceContext;
 911         PSMgmtObject    pMgmt = pDevice->pMgmt;
 912         unsigned int ii;
 913         PWLAN_IE_SSID   pItemSSID, pCurrSSID;
 914         unsigned int uSleepySTACnt = 0;
 915         unsigned int uNonShortSlotSTACnt = 0;
 916         unsigned int uLongPreambleSTACnt = 0;
 917         viawget_wpa_header *wpahdr;  /* DavidWang */
 918
 919         spin_lock_irq(&pDevice->lock);
 920
 921         pDevice->uAssocCount = 0;
 922
 923         pDevice->byERPFlag &=
 924                 ~(WLAN_SET_ERP_BARKER_MODE(1) | WLAN_SET_ERP_NONERP_PRESENT(1));
 925
 926         if (pDevice->wUseProtectCntDown > 0) {
 927                 pDevice->wUseProtectCntDown--;
 928         } else {
 929                 /* disable protect mode */
 930                 pDevice->byERPFlag &= ~(WLAN_SET_ERP_USE_PROTECTION(1));
 931         }
 932
 933         if (pDevice->eCommandState == WLAN_ASSOCIATE_WAIT) {
 934                 pDevice->byReAssocCount++;
 935                 /* 10 sec timeout */
 936                 if ((pDevice->byReAssocCount > 10) && (!pDevice->bLinkPass)) {
 937                         netdev_info(pDevice->dev, "Re-association timeout!!!\n");
 938                         pDevice->byReAssocCount = 0;
 939 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
 940                         {
 941                                 union iwreq_data  wrqu;
 942
 943                                 memset(&wrqu, 0, sizeof(wrqu));
 944                                 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
 945                                 PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
 946                                 wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL);
 947                         }
 948 #endif
 949                 } else if (pDevice->bLinkPass)
 950                         pDevice->byReAssocCount = 0;
 951         }
 952
 953 #ifdef Calcu_LinkQual
 954         s_uCalculateLinkQual((void *)pDevice);
 955 #endif
 956
 957         for (ii = 0; ii < (MAX_NODE_NUM + 1); ii++) {
 958                 if (pMgmt->sNodeDBTable[ii].bActive) {
 959                         /* increase in-activity counter */
 960                         pMgmt->sNodeDBTable[ii].uInActiveCount++;
 961
 962                         if (ii > 0) {
 963                                 if (pMgmt->sNodeDBTable[ii].uInActiveCount > MAX_INACTIVE_COUNT) {
 964                                         BSSvRemoveOneNode(pDevice, ii);
 965                                         pr_debug("Inactive timeout [%d] sec, STA index = [%d] remove\n",
 966                                                  MAX_INACTIVE_COUNT, ii);
 967                                         continue;
 968                                 }
 969
 970                                 if (pMgmt->sNodeDBTable[ii].eNodeState >= NODE_ASSOC) {
 971                                         pDevice->uAssocCount++;
 972
 973                                         /* check if Non ERP exist */
 974                                         if (pMgmt->sNodeDBTable[ii].uInActiveCount < ERP_RECOVER_COUNT) {
 975                                                 if (!pMgmt->sNodeDBTable[ii].bShortPreamble) {
 976                                                         pDevice->byERPFlag |= WLAN_SET_ERP_BARKER_MODE(1);
 977                                                         uLongPreambleSTACnt++;
 978                                                 }
 979                                                 if (!pMgmt->sNodeDBTable[ii].bERPExist) {
 980                                                         pDevice->byERPFlag |= WLAN_SET_ERP_NONERP_PRESENT(1);
 981                                                         pDevice->byERPFlag |= WLAN_SET_ERP_USE_PROTECTION(1);
 982                                                 }
 983                                                 if (!pMgmt->sNodeDBTable[ii].bShortSlotTime)
 984                                                         uNonShortSlotSTACnt++;
 985                                         }
 986                                 }
 987
 988                                 /* check if any STA in PS mode */
 989                                 if (pMgmt->sNodeDBTable[ii].bPSEnable)
 990                                         uSleepySTACnt++;
 991
 992                         }
 993
 994                         /* rate fallback check */
 995                         if (!pDevice->bFixRate) {
 996                                 if (ii > 0) {
 997                                         /* ii = 0 for multicast node (AP & Adhoc) */
 998                                         RATEvTxRateFallBack((void *)pDevice, &(pMgmt->sNodeDBTable[ii]));
 999                                 } else {
1000                                         /* ii = 0 reserved for unicast AP node (Infra STA) */
1001                                         if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)
1002                                                 netdev_dbg(pDevice->dev,
1003                                                            "SecondCallback:Before:TxDataRate is %d\n",
1004                                                            pMgmt->sNodeDBTable[0].wTxDataRate);
1005                                         RATEvTxRateFallBack((void *)pDevice, &(pMgmt->sNodeDBTable[ii]));
1006                                         netdev_dbg(pDevice->dev,
1007                                                    "SecondCallback:After:TxDataRate is %d\n",
1008                                                    pMgmt->sNodeDBTable[0].wTxDataRate);
1009
1010                                 }
1011
1012                         }
1013
1014                         /* check if pending PS queue */
1015                         if (pMgmt->sNodeDBTable[ii].wEnQueueCnt != 0) {
1016                                 pr_debug("Index= %d, Queue = %d pending\n",
1017                                          ii,
1018                                          pMgmt->sNodeDBTable[ii].wEnQueueCnt);
1019                                 if ((ii > 0) && (pMgmt->sNodeDBTable[ii].wEnQueueCnt > 15)) {
1020                                         BSSvRemoveOneNode(pDevice, ii);
1021                                         pr_info("Pending many queues PS STA Index = %d remove\n",
1022                                                 ii);
1023                                         continue;
1024                                 }
1025                         }
1026                 }
1027
1028         }
1029
1030         if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) && (pDevice->eCurrentPHYType == PHY_TYPE_11G)) {
1031                 /* on/off protect mode */
1032                 if (WLAN_GET_ERP_USE_PROTECTION(pDevice->byERPFlag)) {
1033                         if (!pDevice->bProtectMode) {
1034                                 MACvEnableProtectMD(pDevice->PortOffset);
1035                                 pDevice->bProtectMode = true;
1036                         }
1037                 } else {
1038                         if (pDevice->bProtectMode) {
1039                                 MACvDisableProtectMD(pDevice->PortOffset);
1040                                 pDevice->bProtectMode = false;
1041                         }
1042                 }
1043                 /* on/off short slot time */
1044
1045                 if (uNonShortSlotSTACnt > 0) {
1046                         if (pDevice->bShortSlotTime) {
1047                                 pDevice->bShortSlotTime = false;
1048                                 BBvSetShortSlotTime(pDevice);
1049                                 vUpdateIFS((void *)pDevice);
1050                         }
1051                 } else {
1052                         if (!pDevice->bShortSlotTime) {
1053                                 pDevice->bShortSlotTime = true;
1054                                 BBvSetShortSlotTime(pDevice);
1055                                 vUpdateIFS((void *)pDevice);
1056                         }
1057                 }
1058
1059                 /* on/off barker long preamble mode */
1060
1061                 if (uLongPreambleSTACnt > 0) {
1062                         if (!pDevice->bBarkerPreambleMd) {
1063                                 MACvEnableBarkerPreambleMd(pDevice->PortOffset);
1064                                 pDevice->bBarkerPreambleMd = true;
1065                         }
1066                 } else {
1067                         if (pDevice->bBarkerPreambleMd) {
1068                                 MACvDisableBarkerPreambleMd(pDevice->PortOffset);
1069                                 pDevice->bBarkerPreambleMd = false;
1070                         }
1071                 }
1072
1073         }
1074
1075         /* check if any STA in PS mode, enable DTIM multicast deliver */
1076         if (pMgmt->eCurrMode == WMAC_MODE_ESS_AP) {
1077                 if (uSleepySTACnt > 0)
1078                         pMgmt->sNodeDBTable[0].bPSEnable = true;
1079                 else
1080                         pMgmt->sNodeDBTable[0].bPSEnable = false;
1081         }
1082
1083         pItemSSID = (PWLAN_IE_SSID)pMgmt->abyDesireSSID;
1084         pCurrSSID = (PWLAN_IE_SSID)pMgmt->abyCurrSSID;
1085
1086         if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
1087             (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
1088                 /* assoc with BSS */
1089                 if (pMgmt->sNodeDBTable[0].bActive) {
1090                         if (pDevice->bUpdateBBVGA)
1091                                 s_vCheckPreEDThreshold((void *)pDevice);
1092
1093                         if ((pMgmt->sNodeDBTable[0].uInActiveCount >= (LOST_BEACON_COUNT/2)) &&
1094                             (pDevice->byBBVGACurrent != pDevice->abyBBVGA[0])) {
1095                                 pDevice->byBBVGANew = pDevice->abyBBVGA[0];
1096                                 bScheduleCommand((void *)pDevice, WLAN_CMD_CHANGE_BBSENSITIVITY, NULL);
1097                         }
1098
1099                         if (pMgmt->sNodeDBTable[0].uInActiveCount >= LOST_BEACON_COUNT) {
1100                                 pMgmt->sNodeDBTable[0].bActive = false;
1101                                 pMgmt->eCurrMode = WMAC_MODE_STANDBY;
1102                                 pMgmt->eCurrState = WMAC_STATE_IDLE;
1103                                 netif_stop_queue(pDevice->dev);
1104                                 pDevice->bLinkPass = false;
1105                                 pDevice->bRoaming = true;
1106                                 pr_info("Lost AP beacon [%d] sec, disconnected !\n",
1107                                         pMgmt->sNodeDBTable[0].uInActiveCount);
1108                                 if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
1109                                         wpahdr = (viawget_wpa_header *)pDevice->skb->data;
1110                                         wpahdr->type = VIAWGET_DISASSOC_MSG;
1111                                         wpahdr->resp_ie_len = 0;
1112                                         wpahdr->req_ie_len = 0;
1113                                         skb_put(pDevice->skb, sizeof(viawget_wpa_header));
1114                                         pDevice->skb->dev = pDevice->wpadev;
1115                                         skb_reset_mac_header(pDevice->skb);
1116                                         pDevice->skb->pkt_type = PACKET_HOST;
1117                                         pDevice->skb->protocol = htons(ETH_P_802_2);
1118                                         memset(pDevice->skb->cb, 0, sizeof(pDevice->skb->cb));
1119                                         netif_rx(pDevice->skb);
1120                                         pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
1121                                 }
1122 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
1123                                 {
1124                                         union iwreq_data  wrqu;
1125
1126                                         memset(&wrqu, 0, sizeof(wrqu));
1127                                         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
1128                                         PRINT_K("wireless_send_event--->SIOCGIWAP(disassociated)\n");
1129                                         wireless_send_event(pDevice->dev, SIOCGIWAP, &wrqu, NULL);
1130                                 }
1131 #endif
1132                         }
1133                 } else if (pItemSSID->len != 0) {
1134                         if (pDevice->uAutoReConnectTime < 10) {
1135                                 pDevice->uAutoReConnectTime++;
1136 #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
1137                                 /*
1138                                  * network manager support need not do
1139                                  * Roaming scan???
1140                                  */
1141                                 if (pDevice->bWPASuppWextEnabled)
1142                                         pDevice->uAutoReConnectTime = 0;
1143 #endif
1144                         } else {
1145                                 /*
1146                                  * mike use old encryption status
1147                                  * for wpa reauthentication
1148                                  */
1149                                 if (pDevice->bWPADEVUp)
1150                                         pDevice->eEncryptionStatus = pDevice->eOldEncryptionStatus;
1151
1152                                 pr_debug("Roaming ...\n");
1153                                 BSSvClearBSSList((void *)pDevice, pDevice->bLinkPass);
1154                                 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1155                                 bScheduleCommand((void *)pDevice, WLAN_CMD_BSSID_SCAN, pMgmt->abyDesireSSID);
1156                                 bScheduleCommand((void *)pDevice, WLAN_CMD_SSID, pMgmt->abyDesireSSID);
1157                                 pDevice->uAutoReConnectTime = 0;
1158                         }
1159                 }
1160         }
1161
1162         if (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) {
1163                 /* if adhoc started which essid is NULL string, rescanning */
1164                 if ((pMgmt->eCurrState == WMAC_STATE_STARTED) && (pCurrSSID->len == 0)) {
1165                         if (pDevice->uAutoReConnectTime < 10) {
1166                                 pDevice->uAutoReConnectTime++;
1167                         } else {
1168                                 pr_info("Adhoc re-scanning ...\n");
1169                                 pMgmt->eScanType = WMAC_SCAN_ACTIVE;
1170                                 bScheduleCommand((void *)pDevice, WLAN_CMD_BSSID_SCAN, NULL);
1171                                 bScheduleCommand((void *)pDevice, WLAN_CMD_SSID, NULL);
1172                                 pDevice->uAutoReConnectTime = 0;
1173                         }
1174                 }
1175                 if (pMgmt->eCurrState == WMAC_STATE_JOINTED) {
1176                         if (pDevice->bUpdateBBVGA)
1177                                 s_vCheckPreEDThreshold((void *)pDevice);
1178                         if (pMgmt->sNodeDBTable[0].uInActiveCount >= ADHOC_LOST_BEACON_COUNT) {
1179                                 pr_info("Lost other STA beacon [%d] sec, started !\n",
1180                                         pMgmt->sNodeDBTable[0].uInActiveCount);
1181                                 pMgmt->sNodeDBTable[0].uInActiveCount = 0;
1182                                 pMgmt->eCurrState = WMAC_STATE_STARTED;
1183                                 netif_stop_queue(pDevice->dev);
1184                                 pDevice->bLinkPass = false;
1185                         }
1186                 }
1187         }
1188
1189         spin_unlock_irq(&pDevice->lock);
1190
1191         pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
1192         add_timer(&pMgmt->sTimerSecondCallback);
1193 }
1194
1195 /*+
1196  *
1197  * Routine Description:
1198  *
1199  *
1200  *  Update Tx attemps, Tx failure counter in Node DB
1201  *
1202  *
1203  * Return Value:
1204  *    none.
1205  *
1206  -*/
1207
1208 void
1209 BSSvUpdateNodeTxCounter(
1210         void *hDeviceContext,
1211         unsigned char byTsr0,
1212         unsigned char byTsr1,
1213         unsigned char *pbyBuffer,
1214         unsigned int uFIFOHeaderSize
1215 )
1216 {
1217         struct vnt_private *pDevice = hDeviceContext;
1218         PSMgmtObject    pMgmt = pDevice->pMgmt;
1219         unsigned int uNodeIndex = 0;
1220         unsigned char byTxRetry = (byTsr0 & TSR0_NCR);
1221         PSTxBufHead     pTxBufHead;
1222         PS802_11Header  pMACHeader;
1223         unsigned short wRate;
1224         unsigned short wFallBackRate = RATE_1M;
1225         unsigned char byFallBack;
1226         unsigned int ii;
1227
1228         pTxBufHead = (PSTxBufHead) pbyBuffer;
1229         if (pTxBufHead->wFIFOCtl & FIFOCTL_AUTO_FB_0)
1230                 byFallBack = AUTO_FB_0;
1231         else if (pTxBufHead->wFIFOCtl & FIFOCTL_AUTO_FB_1)
1232                 byFallBack = AUTO_FB_1;
1233         else
1234                 byFallBack = AUTO_FB_NONE;
1235         wRate = pTxBufHead->wReserved;
1236
1237         /* Only Unicast using support rates */
1238         if (pTxBufHead->wFIFOCtl & FIFOCTL_NEEDACK) {
1239                 pr_debug("wRate %04X, byTsr0 %02X, byTsr1 %02X\n",
1240                          wRate, byTsr0, byTsr1);
1241                 if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
1242                         pMgmt->sNodeDBTable[0].uTxAttempts += 1;
1243                         if ((byTsr1 & TSR1_TERR) == 0) {
1244                                 /* transmit success, TxAttempts at least plus one */
1245                                 pMgmt->sNodeDBTable[0].uTxOk[MAX_RATE]++;
1246                                 if ((byFallBack == AUTO_FB_NONE) ||
1247                                     (wRate < RATE_18M)) {
1248                                         wFallBackRate = wRate;
1249                                 } else if (byFallBack == AUTO_FB_0) {
1250                                         if (byTxRetry < 5)
1251                                                 wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry];
1252                                         else
1253                                                 wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1254                                 } else if (byFallBack == AUTO_FB_1) {
1255                                         if (byTxRetry < 5)
1256                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry];
1257                                         else
1258                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1259                                 }
1260                                 pMgmt->sNodeDBTable[0].uTxOk[wFallBackRate]++;
1261                         } else {
1262                                 pMgmt->sNodeDBTable[0].uTxFailures++;
1263                         }
1264                         pMgmt->sNodeDBTable[0].uTxRetry += byTxRetry;
1265                         if (byTxRetry != 0) {
1266                                 pMgmt->sNodeDBTable[0].uTxFail[MAX_RATE] += byTxRetry;
1267                                 if ((byFallBack == AUTO_FB_NONE) ||
1268                                     (wRate < RATE_18M)) {
1269                                         pMgmt->sNodeDBTable[0].uTxFail[wRate] += byTxRetry;
1270                                 } else if (byFallBack == AUTO_FB_0) {
1271                                         for (ii = 0; ii < byTxRetry; ii++) {
1272                                                 if (ii < 5)
1273                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][ii];
1274                                                 else
1275                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1276                                                 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1277                                         }
1278                                 } else if (byFallBack == AUTO_FB_1) {
1279                                         for (ii = 0; ii < byTxRetry; ii++) {
1280                                                 if (ii < 5)
1281                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
1282                                                 else
1283                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1284                                                 pMgmt->sNodeDBTable[0].uTxFail[wFallBackRate]++;
1285                                         }
1286                                 }
1287                         }
1288                 }
1289
1290                 if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) ||
1291                     (pMgmt->eCurrMode == WMAC_MODE_ESS_AP)) {
1292                         pMACHeader = (PS802_11Header)(pbyBuffer + uFIFOHeaderSize);
1293
1294                         if (BSSDBbIsSTAInNodeDB((void *)pMgmt,  &(pMACHeader->abyAddr1[0]), &uNodeIndex)) {
1295                                 pMgmt->sNodeDBTable[uNodeIndex].uTxAttempts += 1;
1296                                 if ((byTsr1 & TSR1_TERR) == 0) {
1297                                         /* transmit success, TxAttempts at least plus one */
1298                                         pMgmt->sNodeDBTable[uNodeIndex].uTxOk[MAX_RATE]++;
1299                                         if ((byFallBack == AUTO_FB_NONE) ||
1300                                             (wRate < RATE_18M)) {
1301                                                 wFallBackRate = wRate;
1302                                         } else if (byFallBack == AUTO_FB_0) {
1303                                                 if (byTxRetry < 5)
1304                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][byTxRetry];
1305                                                 else
1306                                                         wFallBackRate = awHWRetry0[wRate-RATE_18M][4];
1307                                         } else if (byFallBack == AUTO_FB_1) {
1308                                                 if (byTxRetry < 5)
1309                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][byTxRetry];
1310                                                 else
1311                                                         wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1312                                         }
1313                                         pMgmt->sNodeDBTable[uNodeIndex].uTxOk[wFallBackRate]++;
1314                                 } else {
1315                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFailures++;
1316                                 }
1317                                 pMgmt->sNodeDBTable[uNodeIndex].uTxRetry += byTxRetry;
1318                                 if (byTxRetry != 0) {
1319                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFail[MAX_RATE] += byTxRetry;
1320                                         if ((byFallBack == AUTO_FB_NONE) ||
1321                                             (wRate < RATE_18M)) {
1322                                                 pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wRate] += byTxRetry;
1323                                         } else if (byFallBack == AUTO_FB_0) {
1324                                                 for (ii = 0; ii < byTxRetry; ii++) {
1325                                                         if (ii < 5)
1326                                                                 wFallBackRate = awHWRetry0[wRate - RATE_18M][ii];
1327                                                         else
1328                                                                 wFallBackRate = awHWRetry0[wRate - RATE_18M][4];
1329                                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1330                                                 }
1331                                         } else if (byFallBack == AUTO_FB_1) {
1332                                                 for (ii = 0; ii < byTxRetry; ii++) {
1333                                                         if (ii < 5)
1334                                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][ii];
1335                                                         else
1336                                                                 wFallBackRate = awHWRetry1[wRate-RATE_18M][4];
1337                                                         pMgmt->sNodeDBTable[uNodeIndex].uTxFail[wFallBackRate]++;
1338                                                 }
1339                                         }
1340                                 }
1341                         }
1342                 }
1343         }
1344 }
1345
1346 /*+
1347  *
1348  * Routine Description:
1349  *    Clear Nodes & skb in DB Table
1350  *
1351  *
1352  * Parameters:
1353  *  In:
1354  *      hDeviceContext        - The adapter context.
1355  *      uStartIndex           - starting index
1356  *  Out:
1357  *      none
1358  *
1359  * Return Value:
1360  *    None.
1361  *
1362  -*/
1363
1364 void
1365 BSSvClearNodeDBTable(
1366         void *hDeviceContext,
1367         unsigned int uStartIndex
1368 )
1369
1370 {
1371         struct vnt_private *pDevice = hDeviceContext;
1372         PSMgmtObject    pMgmt = pDevice->pMgmt;
1373         struct sk_buff  *skb;
1374         unsigned int ii;
1375
1376         for (ii = uStartIndex; ii < (MAX_NODE_NUM + 1); ii++) {
1377                 if (pMgmt->sNodeDBTable[ii].bActive) {
1378                         /* check if sTxPSQueue has been initial */
1379                         if (pMgmt->sNodeDBTable[ii].sTxPSQueue.next != NULL) {
1380                                 while ((skb = skb_dequeue(&pMgmt->sNodeDBTable[ii].sTxPSQueue)) != NULL) {
1381                                         pr_debug("PS skb != NULL %d\n", ii);
1382                                         dev_kfree_skb(skb);
1383                                 }
1384                         }
1385                         memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB));
1386                 }
1387         }
1388
1389         return;
1390 };
1391
1392 void s_vCheckSensitivity(
1393         void *hDeviceContext
1394 )
1395 {
1396         struct vnt_private *pDevice = hDeviceContext;
1397         PKnownBSS       pBSSList = NULL;
1398         PSMgmtObject    pMgmt = pDevice->pMgmt;
1399         int             ii;
1400
1401         if ((pDevice->byLocalID <= REV_ID_VT3253_A1) && (pDevice->byRFType == RF_RFMD2959) &&
1402             (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
1403                 return;
1404         }
1405
1406         if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) ||
1407             ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) {
1408                 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID);
1409                 if (pBSSList != NULL) {
1410                         /* Update BB Reg if RSSI is too strong */
1411                         long    LocalldBmAverage = 0;
1412                         long    uNumofdBm = 0;
1413
1414                         for (ii = 0; ii < RSSI_STAT_COUNT; ii++) {
1415                                 if (pBSSList->ldBmAverage[ii] != 0) {
1416                                         uNumofdBm++;
1417                                         LocalldBmAverage += pBSSList->ldBmAverage[ii];
1418                                 }
1419                         }
1420                         if (uNumofdBm > 0) {
1421                                 LocalldBmAverage = LocalldBmAverage/uNumofdBm;
1422                                 for (ii = 0; ii < BB_VGA_LEVEL; ii++) {
1423                                         pr_debug("LocalldBmAverage:%ld, %ld %02x\n",
1424                                                  LocalldBmAverage,
1425                                                  pDevice->ldBmThreshold[ii],
1426                                                  pDevice->abyBBVGA[ii]);
1427                                         if (LocalldBmAverage < pDevice->ldBmThreshold[ii]) {
1428                                                 pDevice->byBBVGANew = pDevice->abyBBVGA[ii];
1429                                                 break;
1430                                         }
1431                                 }
1432                                 if (pDevice->byBBVGANew != pDevice->byBBVGACurrent) {
1433                                         pDevice->uBBVGADiffCount++;
1434                                         if (pDevice->uBBVGADiffCount >= BB_VGA_CHANGE_THRESHOLD)
1435                                                 bScheduleCommand((void *)pDevice, WLAN_CMD_CHANGE_BBSENSITIVITY, NULL);
1436                                 } else {
1437                                         pDevice->uBBVGADiffCount = 0;
1438                                 }
1439                         }
1440                 }
1441         }
1442 }
1443
1444 void
1445 BSSvClearAnyBSSJoinRecord(
1446         void *hDeviceContext
1447 )
1448 {
1449         struct vnt_private *pDevice = hDeviceContext;
1450         PSMgmtObject    pMgmt = pDevice->pMgmt;
1451         unsigned int ii;
1452
1453         for (ii = 0; ii < MAX_BSS_NUM; ii++)
1454                 pMgmt->sBSSList[ii].bSelected = false;
1455 }
1456
1457 #ifdef Calcu_LinkQual
1458 void s_uCalculateLinkQual(
1459         void *hDeviceContext
1460 )
1461 {
1462         struct vnt_private *pDevice = hDeviceContext;
1463         unsigned long TxOkRatio, TxCnt;
1464         unsigned long RxOkRatio, RxCnt;
1465         unsigned long RssiRatio;
1466         long ldBm;
1467
1468         TxCnt = pDevice->scStatistic.TxNoRetryOkCount +
1469                 pDevice->scStatistic.TxRetryOkCount +
1470                 pDevice->scStatistic.TxFailCount;
1471         RxCnt = pDevice->scStatistic.RxFcsErrCnt +
1472                 pDevice->scStatistic.RxOkCnt;
1473         TxOkRatio = (TxCnt < 6) ? 4000 : ((pDevice->scStatistic.TxNoRetryOkCount * 4000) / TxCnt);
1474         RxOkRatio = (RxCnt < 6) ? 2000 : ((pDevice->scStatistic.RxOkCnt * 2000) / RxCnt);
1475         /* decide link quality */
1476         if (!pDevice->bLinkPass) {
1477                 pDevice->scStatistic.LinkQuality = 0;
1478                 pDevice->scStatistic.SignalStren = 0;
1479         } else {
1480                 RFvRSSITodBm(pDevice, (unsigned char)(pDevice->uCurrRSSI), &ldBm);
1481                 if (-ldBm < 50)
1482                         RssiRatio = 4000;
1483                 else if (-ldBm > 90)
1484                         RssiRatio = 0;
1485                 else
1486                         RssiRatio = (40-(-ldBm-50))*4000/40;
1487                 pDevice->scStatistic.SignalStren = RssiRatio/40;
1488                 pDevice->scStatistic.LinkQuality = (RssiRatio+TxOkRatio+RxOkRatio)/100;
1489         }
1490         pDevice->scStatistic.RxFcsErrCnt = 0;
1491         pDevice->scStatistic.RxOkCnt = 0;
1492         pDevice->scStatistic.TxFailCount = 0;
1493         pDevice->scStatistic.TxNoRetryOkCount = 0;
1494         pDevice->scStatistic.TxRetryOkCount = 0;
1495 }
1496 #endif
1497
1498 void s_vCheckPreEDThreshold(
1499         void *hDeviceContext
1500 )
1501 {
1502         struct vnt_private *pDevice = hDeviceContext;
1503         PKnownBSS       pBSSList = NULL;
1504         PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
1505
1506         if ((pMgmt->eCurrState == WMAC_STATE_ASSOC) ||
1507             ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) && (pMgmt->eCurrState == WMAC_STATE_JOINTED))) {
1508                 pBSSList = BSSpAddrIsInBSSList(pDevice, pMgmt->abyCurrBSSID, (PWLAN_IE_SSID)pMgmt->abyCurrSSID);
1509                 if (pBSSList != NULL)
1510                         pDevice->byBBPreEDRSSI = (unsigned char) (~(pBSSList->ldBmAverRange) + 1);
1511         }
1512 }