SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/staging/rt2870/sta/sync.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26
  27         Module Name:
  28         sync.c
  29
  30         Abstract:
  31
  32         Revision History:
  33         Who                     When                    What
  34         --------        ----------              ----------------------------------------------
  35         John Chang      2004-09-01      modified for rt2561/2661
  36         Jan Lee         2006-08-01      modified for rt2860 for 802.11n
  37 */
  38 #include "../rt_config.h"
  39
  40 #define ADHOC_ENTRY_BEACON_LOST_TIME    (2*OS_HZ)       // 2 sec
  41
  42 /*
  43         ==========================================================================
  44         Description:
  45                 The sync state machine,
  46         Parameters:
  47                 Sm - pointer to the state machine
  48         Note:
  49                 the state machine looks like the following
  50
  51         ==========================================================================
  52  */
  53 VOID SyncStateMachineInit(
  54         IN PRTMP_ADAPTER pAd,
  55         IN STATE_MACHINE *Sm,
  56         OUT STATE_MACHINE_FUNC Trans[])
  57 {
  58         StateMachineInit(Sm, Trans, MAX_SYNC_STATE, MAX_SYNC_MSG, (STATE_MACHINE_FUNC)Drop, SYNC_IDLE, SYNC_MACHINE_BASE);
  59
  60         // column 1
  61         StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)MlmeScanReqAction);
  62         StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)MlmeJoinReqAction);
  63         StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)MlmeStartReqAction);
  64         StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeacon);
  65         StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_PROBE_REQ, (STATE_MACHINE_FUNC)PeerProbeReqAction);
  66
  67         //column 2
  68         StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenScan);
  69         StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenJoin);
  70         StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenStart);
  71         StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeaconAtJoinAction);
  72         StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_BEACON_TIMEOUT, (STATE_MACHINE_FUNC)BeaconTimeoutAtJoinAction);
  73
  74         // column 3
  75         StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_SCAN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenScan);
  76         StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_JOIN_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenJoin);
  77         StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_START_REQ, (STATE_MACHINE_FUNC)InvalidStateWhenStart);
  78         StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_BEACON, (STATE_MACHINE_FUNC)PeerBeaconAtScanAction);
  79         StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_PROBE_RSP, (STATE_MACHINE_FUNC)PeerBeaconAtScanAction);
  80         StateMachineSetAction(Sm, SCAN_LISTEN, MT2_SCAN_TIMEOUT, (STATE_MACHINE_FUNC)ScanTimeoutAction);
  81
  82         // timer init
  83         RTMPInitTimer(pAd, &pAd->MlmeAux.BeaconTimer, GET_TIMER_FUNCTION(BeaconTimeout), pAd, FALSE);
  84         RTMPInitTimer(pAd, &pAd->MlmeAux.ScanTimer, GET_TIMER_FUNCTION(ScanTimeout), pAd, FALSE);
  85 }
  86
  87 /*
  88         ==========================================================================
  89         Description:
  90                 Beacon timeout handler, executed in timer thread
  91
  92         IRQL = DISPATCH_LEVEL
  93
  94         ==========================================================================
  95  */
  96 VOID BeaconTimeout(
  97         IN PVOID SystemSpecific1,
  98         IN PVOID FunctionContext,
  99         IN PVOID SystemSpecific2,
 100         IN PVOID SystemSpecific3)
 101 {
 102         RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)FunctionContext;
 103
 104         DBGPRINT(RT_DEBUG_TRACE,("SYNC - BeaconTimeout\n"));
 105
 106         // Do nothing if the driver is starting halt state.
 107         // This might happen when timer already been fired before cancel timer with mlmehalt
 108         if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS))
 109                 return;
 110
 111 #ifdef DOT11_N_SUPPORT
 112         if ((pAd->CommonCfg.BBPCurrentBW == BW_40)
 113                 )
 114         {
 115                 UCHAR        BBPValue = 0;
 116                 AsicSwitchChannel(pAd, pAd->CommonCfg.CentralChannel, FALSE);
 117                 AsicLockChannel(pAd, pAd->CommonCfg.CentralChannel);
 118                 RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
 119                 BBPValue &= (~0x18);
 120                 BBPValue |= 0x10;
 121                 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
 122                 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - End of SCAN, restore to 40MHz channel %d, Total BSS[%02d]\n",pAd->CommonCfg.CentralChannel, pAd->ScanTab.BssNr));
 123         }
 124 #endif // DOT11_N_SUPPORT //
 125
 126         MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_BEACON_TIMEOUT, 0, NULL);
 127         RT28XX_MLME_HANDLER(pAd);
 128 }
 129
 130 /*
 131         ==========================================================================
 132         Description:
 133                 Scan timeout handler, executed in timer thread
 134
 135         IRQL = DISPATCH_LEVEL
 136
 137         ==========================================================================
 138  */
 139 VOID ScanTimeout(
 140         IN PVOID SystemSpecific1,
 141         IN PVOID FunctionContext,
 142         IN PVOID SystemSpecific2,
 143         IN PVOID SystemSpecific3)
 144 {
 145         RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)FunctionContext;
 146
 147
 148         // Do nothing if the driver is starting halt state.
 149         // This might happen when timer already been fired before cancel timer with mlmehalt
 150         if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS))
 151                 return;
 152
 153         if (MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_SCAN_TIMEOUT, 0, NULL))
 154         {
 155                 RT28XX_MLME_HANDLER(pAd);
 156         }
 157         else
 158         {
 159                 // To prevent SyncMachine.CurrState is SCAN_LISTEN forever.
 160                 pAd->MlmeAux.Channel = 0;
 161                 ScanNextChannel(pAd);
 162                 if (pAd->CommonCfg.bWirelessEvent)
 163                 {
 164                         RTMPSendWirelessEvent(pAd, IW_SCAN_ENQUEUE_FAIL_EVENT_FLAG, pAd->MacTab.Content[BSSID_WCID].Addr, BSS0, 0);
 165                 }
 166         }
 167 }
 168
 169 /*
 170         ==========================================================================
 171         Description:
 172                 MLME SCAN req state machine procedure
 173         ==========================================================================
 174  */
 175 VOID MlmeScanReqAction(
 176         IN PRTMP_ADAPTER pAd,
 177         IN MLME_QUEUE_ELEM *Elem)
 178 {
 179         UCHAR          Ssid[MAX_LEN_OF_SSID], SsidLen, ScanType, BssType, BBPValue = 0;
 180         BOOLEAN        TimerCancelled;
 181         ULONG              Now;
 182         USHORT         Status;
 183         PHEADER_802_11 pHdr80211;
 184         PUCHAR         pOutBuffer = NULL;
 185         NDIS_STATUS    NStatus;
 186
 187         // Check the total scan tries for one single OID command
 188         // If this is the CCX 2.0 Case, skip that!
 189         if ( !RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_START_UP))
 190         {
 191                 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - MlmeScanReqAction before Startup\n"));
 192                 return;
 193         }
 194
 195         // Increase the scan retry counters.
 196         pAd->StaCfg.ScanCnt++;
 197
 198
 199         // first check the parameter sanity
 200         if (MlmeScanReqSanity(pAd,
 201                                                   Elem->Msg,
 202                                                   Elem->MsgLen,
 203                                                   &BssType,
 204                                                   Ssid,
 205                                                   &SsidLen,
 206                                                   &ScanType))
 207         {
 208
 209                 // Check for channel load and noise hist request
 210                 // Suspend MSDU only at scan request, not the last two mentioned
 211                 if ((ScanType == SCAN_CISCO_NOISE) || (ScanType == SCAN_CISCO_CHANNEL_LOAD))
 212                 {
 213                         if (pAd->StaCfg.CCXScanChannel != pAd->CommonCfg.Channel)
 214                                 RTMPSuspendMsduTransmission(pAd);                       // Suspend MSDU transmission here
 215                 }
 216                 else
 217                 {
 218                         // Suspend MSDU transmission here
 219                         RTMPSuspendMsduTransmission(pAd);
 220                 }
 221
 222                 //
 223                 // To prevent data lost.
 224                 // Send an NULL data with turned PSM bit on to current associated AP before SCAN progress.
 225                 // And should send an NULL data with turned PSM bit off to AP, when scan progress done
 226                 //
 227                 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED) && (INFRA_ON(pAd)))
 228                 {
 229                         NStatus = MlmeAllocateMemory(pAd, (PVOID)&pOutBuffer);
 230                         if (NStatus     == NDIS_STATUS_SUCCESS)
 231                         {
 232                                 pHdr80211 = (PHEADER_802_11) pOutBuffer;
 233                                 MgtMacHeaderInit(pAd, pHdr80211, SUBTYPE_NULL_FUNC, 1, pAd->CommonCfg.Bssid, pAd->CommonCfg.Bssid);
 234                                 pHdr80211->Duration = 0;
 235                                 pHdr80211->FC.Type = BTYPE_DATA;
 236                                 pHdr80211->FC.PwrMgmt = PWR_SAVE;
 237
 238                                 // Send using priority queue
 239                                 MiniportMMRequest(pAd, 0, pOutBuffer, sizeof(HEADER_802_11));
 240                                 DBGPRINT(RT_DEBUG_TRACE, ("MlmeScanReqAction -- Send PSM Data frame for off channel RM\n"));
 241                                 MlmeFreeMemory(pAd, pOutBuffer);
 242                                 RTMPusecDelay(5000);
 243                         }
 244                 }
 245
 246                 NdisGetSystemUpTime(&Now);
 247                 pAd->StaCfg.LastScanTime = Now;
 248                 // reset all the timers
 249                 RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
 250                 RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
 251
 252                 // record desired BSS parameters
 253                 pAd->MlmeAux.BssType = BssType;
 254                 pAd->MlmeAux.ScanType = ScanType;
 255                 pAd->MlmeAux.SsidLen = SsidLen;
 256         NdisZeroMemory(pAd->MlmeAux.Ssid, MAX_LEN_OF_SSID);
 257                 NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
 258
 259                 // start from the first channel
 260                 pAd->MlmeAux.Channel = FirstChannel(pAd);
 261
 262                 // Change the scan channel when dealing with CCX beacon report
 263                 if ((ScanType == SCAN_CISCO_PASSIVE) || (ScanType == SCAN_CISCO_ACTIVE) ||
 264                         (ScanType == SCAN_CISCO_CHANNEL_LOAD) || (ScanType == SCAN_CISCO_NOISE))
 265                         pAd->MlmeAux.Channel = pAd->StaCfg.CCXScanChannel;
 266
 267                 // Let BBP register at 20MHz to do scan
 268                 RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
 269                 BBPValue &= (~0x18);
 270                 RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
 271                 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BBP R4 to 20MHz.l\n"));
 272                 ScanNextChannel(pAd);
 273         }
 274         else
 275         {
 276                 DBGPRINT_ERR(("SYNC - MlmeScanReqAction() sanity check fail\n"));
 277                 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
 278                 Status = MLME_INVALID_FORMAT;
 279                 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
 280         }
 281 }
 282
 283 /*
 284         ==========================================================================
 285         Description:
 286                 MLME JOIN req state machine procedure
 287         ==========================================================================
 288  */
 289 VOID MlmeJoinReqAction(
 290         IN PRTMP_ADAPTER pAd,
 291         IN MLME_QUEUE_ELEM *Elem)
 292 {
 293         UCHAR        BBPValue = 0;
 294         BSS_ENTRY    *pBss;
 295         BOOLEAN       TimerCancelled;
 296         HEADER_802_11 Hdr80211;
 297         NDIS_STATUS   NStatus;
 298         ULONG         FrameLen = 0;
 299         PUCHAR        pOutBuffer = NULL;
 300         PUCHAR        pSupRate = NULL;
 301         UCHAR         SupRateLen;
 302         PUCHAR        pExtRate = NULL;
 303         UCHAR         ExtRateLen;
 304         UCHAR         ASupRate[] = {0x8C, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6C};
 305         UCHAR         ASupRateLen = sizeof(ASupRate)/sizeof(UCHAR);
 306         MLME_JOIN_REQ_STRUCT *pInfo = (MLME_JOIN_REQ_STRUCT *)(Elem->Msg);
 307
 308         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - MlmeJoinReqAction(BSS #%ld)\n", pInfo->BssIdx));
 309
 310
 311         // reset all the timers
 312         RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
 313         RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
 314
 315         pBss = &pAd->MlmeAux.SsidBssTab.BssEntry[pInfo->BssIdx];
 316
 317         // record the desired SSID & BSSID we're waiting for
 318         COPY_MAC_ADDR(pAd->MlmeAux.Bssid, pBss->Bssid);
 319
 320         // If AP's SSID is not hidden, it is OK for updating ssid to MlmeAux again.
 321         if (pBss->Hidden == 0)
 322         {
 323                 NdisMoveMemory(pAd->MlmeAux.Ssid, pBss->Ssid, pBss->SsidLen);
 324                 pAd->MlmeAux.SsidLen = pBss->SsidLen;
 325         }
 326
 327         pAd->MlmeAux.BssType = pBss->BssType;
 328         pAd->MlmeAux.Channel = pBss->Channel;
 329         pAd->MlmeAux.CentralChannel = pBss->CentralChannel;
 330
 331         // Let BBP register at 20MHz to do scan
 332         RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
 333         BBPValue &= (~0x18);
 334         RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
 335         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BBP R4 to 20MHz.l\n"));
 336
 337         // switch channel and waiting for beacon timer
 338         AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, FALSE);
 339         AsicLockChannel(pAd, pAd->MlmeAux.Channel);
 340         RTMPSetTimer(&pAd->MlmeAux.BeaconTimer, JOIN_TIMEOUT);
 341
 342     do
 343         {
 344                 if (((pAd->CommonCfg.bIEEE80211H == 1) &&
 345             (pAd->MlmeAux.Channel > 14) &&
 346              RadarChannelCheck(pAd, pAd->MlmeAux.Channel))
 347             )
 348                 {
 349                         //
 350                         // We can't send any Probe request frame to meet 802.11h.
 351                         //
 352                         if (pBss->Hidden == 0)
 353                                 break;
 354                 }
 355
 356                 //
 357                 // send probe request
 358                 //
 359                 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);
 360                 if (NStatus == NDIS_STATUS_SUCCESS)
 361                 {
 362                         if (pAd->MlmeAux.Channel <= 14)
 363                         {
 364                                 pSupRate = pAd->CommonCfg.SupRate;
 365                                 SupRateLen = pAd->CommonCfg.SupRateLen;
 366                                 pExtRate = pAd->CommonCfg.ExtRate;
 367                                 ExtRateLen = pAd->CommonCfg.ExtRateLen;
 368                         }
 369                         else
 370                         {
 371                                 //
 372                                 // Overwrite Support Rate, CCK rate are not allowed
 373                                 //
 374                                 pSupRate = ASupRate;
 375                                 SupRateLen = ASupRateLen;
 376                                 ExtRateLen = 0;
 377                         }
 378
 379                         if (pAd->MlmeAux.BssType == BSS_INFRA)
 380                                 MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, pAd->MlmeAux.Bssid, pAd->MlmeAux.Bssid);
 381                         else
 382                                 MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, BROADCAST_ADDR, BROADCAST_ADDR);
 383
 384                         MakeOutgoingFrame(pOutBuffer,               &FrameLen,
 385                                                           sizeof(HEADER_802_11),    &Hdr80211,
 386                                                           1,                        &SsidIe,
 387                                                           1,                        &pAd->MlmeAux.SsidLen,
 388                                                           pAd->MlmeAux.SsidLen,     pAd->MlmeAux.Ssid,
 389                                                           1,                        &SupRateIe,
 390                                                           1,                        &SupRateLen,
 391                                                           SupRateLen,               pSupRate,
 392                                                           END_OF_ARGS);
 393
 394                         if (ExtRateLen)
 395                         {
 396                                 ULONG Tmp;
 397                                 MakeOutgoingFrame(pOutBuffer + FrameLen,            &Tmp,
 398                                                                   1,                                &ExtRateIe,
 399                                                                   1,                                &ExtRateLen,
 400                                                                   ExtRateLen,                       pExtRate,
 401                                                                   END_OF_ARGS);
 402                                 FrameLen += Tmp;
 403                         }
 404
 405
 406                         MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
 407                         MlmeFreeMemory(pAd, pOutBuffer);
 408                 }
 409     } while (FALSE);
 410
 411         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - Switch to ch %d, Wait BEACON from %02x:%02x:%02x:%02x:%02x:%02x\n",
 412                 pBss->Channel, pBss->Bssid[0], pBss->Bssid[1], pBss->Bssid[2], pBss->Bssid[3], pBss->Bssid[4], pBss->Bssid[5]));
 413
 414         pAd->Mlme.SyncMachine.CurrState = JOIN_WAIT_BEACON;
 415 }
 416
 417 /*
 418         ==========================================================================
 419         Description:
 420                 MLME START Request state machine procedure, starting an IBSS
 421         ==========================================================================
 422  */
 423 VOID MlmeStartReqAction(
 424         IN PRTMP_ADAPTER pAd,
 425         IN MLME_QUEUE_ELEM *Elem)
 426 {
 427         UCHAR         Ssid[MAX_LEN_OF_SSID], SsidLen;
 428         BOOLEAN       TimerCancelled;
 429
 430         // New for WPA security suites
 431         UCHAR                                           VarIE[MAX_VIE_LEN];     // Total VIE length = MAX_VIE_LEN - -5
 432         NDIS_802_11_VARIABLE_IEs        *pVIE = NULL;
 433         LARGE_INTEGER                           TimeStamp;
 434         BOOLEAN Privacy;
 435         USHORT Status;
 436
 437         // Init Variable IE structure
 438         pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
 439         pVIE->Length = 0;
 440         TimeStamp.u.LowPart  = 0;
 441         TimeStamp.u.HighPart = 0;
 442
 443         if (MlmeStartReqSanity(pAd, Elem->Msg, Elem->MsgLen, Ssid, &SsidLen))
 444         {
 445                 // reset all the timers
 446                 RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
 447                 RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
 448
 449                 //
 450                 // Start a new IBSS. All IBSS parameters are decided now....
 451                 //
 452                 DBGPRINT(RT_DEBUG_TRACE, ("MlmeStartReqAction - Start a new IBSS. All IBSS parameters are decided now.... \n"));
 453                 pAd->MlmeAux.BssType           = BSS_ADHOC;
 454                 NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
 455                 pAd->MlmeAux.SsidLen           = SsidLen;
 456
 457                 // generate a radom number as BSSID
 458                 MacAddrRandomBssid(pAd, pAd->MlmeAux.Bssid);
 459                 DBGPRINT(RT_DEBUG_TRACE, ("MlmeStartReqAction - generate a radom number as BSSID \n"));
 460
 461                 Privacy = (pAd->StaCfg.WepStatus == Ndis802_11Encryption1Enabled) ||
 462                                   (pAd->StaCfg.WepStatus == Ndis802_11Encryption2Enabled) ||
 463                                   (pAd->StaCfg.WepStatus == Ndis802_11Encryption3Enabled);
 464                 pAd->MlmeAux.CapabilityInfo    = CAP_GENERATE(0,1,Privacy, (pAd->CommonCfg.TxPreamble == Rt802_11PreambleShort), 1, 0);
 465                 pAd->MlmeAux.BeaconPeriod      = pAd->CommonCfg.BeaconPeriod;
 466                 pAd->MlmeAux.AtimWin           = pAd->StaCfg.AtimWin;
 467                 pAd->MlmeAux.Channel           = pAd->CommonCfg.Channel;
 468
 469                 pAd->CommonCfg.CentralChannel  = pAd->CommonCfg.Channel;
 470                 pAd->MlmeAux.CentralChannel    = pAd->CommonCfg.CentralChannel;
 471
 472                 pAd->MlmeAux.SupRateLen= pAd->CommonCfg.SupRateLen;
 473                 NdisMoveMemory(pAd->MlmeAux.SupRate, pAd->CommonCfg.SupRate, MAX_LEN_OF_SUPPORTED_RATES);
 474                 RTMPCheckRates(pAd, pAd->MlmeAux.SupRate, &pAd->MlmeAux.SupRateLen);
 475                 pAd->MlmeAux.ExtRateLen = pAd->CommonCfg.ExtRateLen;
 476                 NdisMoveMemory(pAd->MlmeAux.ExtRate, pAd->CommonCfg.ExtRate, MAX_LEN_OF_SUPPORTED_RATES);
 477                 RTMPCheckRates(pAd, pAd->MlmeAux.ExtRate, &pAd->MlmeAux.ExtRateLen);
 478 #ifdef DOT11_N_SUPPORT
 479                 if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
 480                 {
 481                         RTMPUpdateHTIE(&pAd->CommonCfg.DesiredHtPhy, &pAd->StaCfg.DesiredHtPhyInfo.MCSSet[0], &pAd->MlmeAux.HtCapability, &pAd->MlmeAux.AddHtInfo);
 482                         pAd->MlmeAux.HtCapabilityLen = sizeof(HT_CAPABILITY_IE);
 483                         // Not turn pAd->StaActive.SupportedHtPhy.bHtEnable = TRUE here.
 484                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC -pAd->StaActive.SupportedHtPhy.bHtEnable = TRUE\n"));
 485                 }
 486                 else
 487 #endif // DOT11_N_SUPPORT //
 488                 {
 489                         pAd->MlmeAux.HtCapabilityLen = 0;
 490                         pAd->StaActive.SupportedPhyInfo.bHtEnable = FALSE;
 491                 }
 492                 // temporarily not support QOS in IBSS
 493                 NdisZeroMemory(&pAd->MlmeAux.APEdcaParm, sizeof(EDCA_PARM));
 494                 NdisZeroMemory(&pAd->MlmeAux.APQbssLoad, sizeof(QBSS_LOAD_PARM));
 495                 NdisZeroMemory(&pAd->MlmeAux.APQosCapability, sizeof(QOS_CAPABILITY_PARM));
 496
 497                 AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, FALSE);
 498                 AsicLockChannel(pAd, pAd->MlmeAux.Channel);
 499
 500                 DBGPRINT(RT_DEBUG_TRACE, ("SYNC - MlmeStartReqAction(ch= %d,sup rates= %d, ext rates=%d)\n",
 501                         pAd->MlmeAux.Channel, pAd->MlmeAux.SupRateLen, pAd->MlmeAux.ExtRateLen));
 502
 503                 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
 504                 Status = MLME_SUCCESS;
 505                 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
 506         }
 507         else
 508         {
 509                 DBGPRINT_ERR(("SYNC - MlmeStartReqAction() sanity check fail.\n"));
 510                 pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
 511                 Status = MLME_INVALID_FORMAT;
 512                 MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
 513         }
 514 }
 515
 516 /*
 517         ==========================================================================
 518         Description:
 519                 peer sends beacon back when scanning
 520         ==========================================================================
 521  */
 522 VOID PeerBeaconAtScanAction(
 523         IN PRTMP_ADAPTER pAd,
 524         IN MLME_QUEUE_ELEM *Elem)
 525 {
 526         UCHAR           Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
 527         UCHAR           Ssid[MAX_LEN_OF_SSID], BssType, Channel, NewChannel,
 528                                         SsidLen, DtimCount, DtimPeriod, BcastFlag, MessageToMe;
 529         CF_PARM         CfParm;
 530         USHORT          BeaconPeriod, AtimWin, CapabilityInfo;
 531         PFRAME_802_11   pFrame;
 532         LARGE_INTEGER   TimeStamp;
 533         UCHAR           Erp;
 534         UCHAR           SupRate[MAX_LEN_OF_SUPPORTED_RATES], ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
 535         UCHAR                   SupRateLen, ExtRateLen;
 536         USHORT                  LenVIE;
 537         UCHAR                   CkipFlag;
 538         UCHAR                   AironetCellPowerLimit;
 539         EDCA_PARM       EdcaParm;
 540         QBSS_LOAD_PARM  QbssLoad;
 541         QOS_CAPABILITY_PARM QosCapability;
 542         ULONG                                           RalinkIe;
 543         UCHAR                                           VarIE[MAX_VIE_LEN];             // Total VIE length = MAX_VIE_LEN - -5
 544         NDIS_802_11_VARIABLE_IEs        *pVIE = NULL;
 545         HT_CAPABILITY_IE                HtCapability;
 546         ADD_HT_INFO_IE          AddHtInfo;      // AP might use this additional ht info IE
 547         UCHAR                   HtCapabilityLen = 0, PreNHtCapabilityLen = 0;
 548         UCHAR                   AddHtInfoLen;
 549         UCHAR                   NewExtChannelOffset = 0xff;
 550
 551
 552         // NdisFillMemory(Ssid, MAX_LEN_OF_SSID, 0x00);
 553         pFrame = (PFRAME_802_11) Elem->Msg;
 554         // Init Variable IE structure
 555         pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
 556         pVIE->Length = 0;
 557 #ifdef DOT11_N_SUPPORT
 558     RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
 559         RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));
 560 #endif // DOT11_N_SUPPORT //
 561
 562         if (PeerBeaconAndProbeRspSanity(pAd,
 563                                                                 Elem->Msg,
 564                                                                 Elem->MsgLen,
 565                                                                 Elem->Channel,
 566                                                                 Addr2,
 567                                                                 Bssid,
 568                                                                 Ssid,
 569                                                                 &SsidLen,
 570                                                                 &BssType,
 571                                                                 &BeaconPeriod,
 572                                                                 &Channel,
 573                                                                 &NewChannel,
 574                                                                 &TimeStamp,
 575                                                                 &CfParm,
 576                                                                 &AtimWin,
 577                                                                 &CapabilityInfo,
 578                                                                 &Erp,
 579                                                                 &DtimCount,
 580                                                                 &DtimPeriod,
 581                                                                 &BcastFlag,
 582                                                                 &MessageToMe,
 583                                                                 SupRate,
 584                                                                 &SupRateLen,
 585                                                                 ExtRate,
 586                                                                 &ExtRateLen,
 587                                                                 &CkipFlag,
 588                                                                 &AironetCellPowerLimit,
 589                                                                 &EdcaParm,
 590                                                                 &QbssLoad,
 591                                                                 &QosCapability,
 592                                                                 &RalinkIe,
 593                                                                 &HtCapabilityLen,
 594                                                                 &PreNHtCapabilityLen,
 595                                                                 &HtCapability,
 596                                                                 &AddHtInfoLen,
 597                                                                 &AddHtInfo,
 598                                                                 &NewExtChannelOffset,
 599                                                                 &LenVIE,
 600                                                                 pVIE))
 601         {
 602                 ULONG Idx;
 603                 CHAR Rssi = 0;
 604
 605                 Idx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
 606                 if (Idx != BSS_NOT_FOUND)
 607                         Rssi = pAd->ScanTab.BssEntry[Idx].Rssi;
 608
 609                 Rssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Elem->Rssi0, RSSI_0), ConvertToRssi(pAd, Elem->Rssi1, RSSI_1), ConvertToRssi(pAd, Elem->Rssi2, RSSI_2));
 610
 611
 612 #ifdef DOT11_N_SUPPORT
 613                 if ((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
 614                         HtCapabilityLen = SIZE_HT_CAP_IE;
 615 #endif // DOT11_N_SUPPORT //
 616                 if ((pAd->StaCfg.CCXReqType != MSRN_TYPE_UNUSED) && (Channel == pAd->StaCfg.CCXScanChannel))
 617                 {
 618                         Idx = BssTableSetEntry(pAd, &pAd->StaCfg.CCXBssTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
 619                                                  &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen,ExtRate, ExtRateLen, &HtCapability,
 620                                                  &AddHtInfo, HtCapabilityLen, AddHtInfoLen, NewExtChannelOffset, Channel, Rssi, TimeStamp, CkipFlag,
 621                                                  &EdcaParm, &QosCapability, &QbssLoad, LenVIE, pVIE);
 622                         if (Idx != BSS_NOT_FOUND)
 623                         {
 624                                 NdisMoveMemory(pAd->StaCfg.CCXBssTab.BssEntry[Idx].PTSF, &Elem->Msg[24], 4);
 625                                 NdisMoveMemory(&pAd->StaCfg.CCXBssTab.BssEntry[Idx].TTSF[0], &Elem->TimeStamp.u.LowPart, 4);
 626                                 NdisMoveMemory(&pAd->StaCfg.CCXBssTab.BssEntry[Idx].TTSF[4], &Elem->TimeStamp.u.LowPart, 4);
 627                                 if (pAd->StaCfg.CCXReqType == MSRN_TYPE_BEACON_REQ)
 628                                         AironetAddBeaconReport(pAd, Idx, Elem);
 629                         }
 630                 }
 631                 else
 632                 {
 633                         Idx = BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
 634                                                   &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen, ExtRate, ExtRateLen,  &HtCapability,
 635                                                  &AddHtInfo, HtCapabilityLen, AddHtInfoLen, NewExtChannelOffset, Channel, Rssi, TimeStamp, CkipFlag,
 636                                                  &EdcaParm, &QosCapability, &QbssLoad, LenVIE, pVIE);
 637 #ifdef DOT11_N_SUPPORT
 638 #ifdef DOT11N_DRAFT3
 639                         if (pAd->ChannelList[pAd->CommonCfg.ChannelListIdx].bEffectedChannel == TRUE)
 640                         {
 641                                 UCHAR           RegClass;
 642                                 PeerBeaconAndProbeRspSanity2(pAd, Elem->Msg, Elem->MsgLen, &RegClass);
 643                                 TriEventTableSetEntry(pAd, &pAd->CommonCfg.TriggerEventTab, Bssid, &HtCapability, HtCapabilityLen, RegClass, Channel);
 644                         }
 645 #endif // DOT11N_DRAFT3 //
 646 #endif // DOT11_N_SUPPORT //
 647                         if (Idx != BSS_NOT_FOUND)
 648                         {
 649                                 NdisMoveMemory(pAd->ScanTab.BssEntry[Idx].PTSF, &Elem->Msg[24], 4);
 650                                 NdisMoveMemory(&pAd->ScanTab.BssEntry[Idx].TTSF[0], &Elem->TimeStamp.u.LowPart, 4);
 651                                 NdisMoveMemory(&pAd->ScanTab.BssEntry[Idx].TTSF[4], &Elem->TimeStamp.u.LowPart, 4);
 652                         }
 653                 }
 654         }
 655         // sanity check fail, ignored
 656 }
 657
 658 /*
 659         ==========================================================================
 660         Description:
 661                 When waiting joining the (I)BSS, beacon received from external
 662         ==========================================================================
 663  */
 664 VOID PeerBeaconAtJoinAction(
 665         IN PRTMP_ADAPTER pAd,
 666         IN MLME_QUEUE_ELEM *Elem)
 667 {
 668         UCHAR         Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
 669         UCHAR         Ssid[MAX_LEN_OF_SSID], SsidLen, BssType, Channel, MessageToMe,
 670                                   DtimCount, DtimPeriod, BcastFlag, NewChannel;
 671         LARGE_INTEGER TimeStamp;
 672         USHORT        BeaconPeriod, AtimWin, CapabilityInfo;
 673         CF_PARM       Cf;
 674         BOOLEAN       TimerCancelled;
 675         UCHAR         Erp;
 676         UCHAR         SupRate[MAX_LEN_OF_SUPPORTED_RATES], ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
 677         UCHAR             SupRateLen, ExtRateLen;
 678         UCHAR         CkipFlag;
 679         USHORT            LenVIE;
 680         UCHAR             AironetCellPowerLimit;
 681         EDCA_PARM       EdcaParm;
 682         QBSS_LOAD_PARM  QbssLoad;
 683         QOS_CAPABILITY_PARM QosCapability;
 684         USHORT        Status;
 685         UCHAR                                           VarIE[MAX_VIE_LEN];             // Total VIE length = MAX_VIE_LEN - -5
 686         NDIS_802_11_VARIABLE_IEs        *pVIE = NULL;
 687         ULONG           RalinkIe;
 688         ULONG         Idx;
 689         HT_CAPABILITY_IE                HtCapability;
 690         ADD_HT_INFO_IE          AddHtInfo;      // AP might use this additional ht info IE
 691         UCHAR                           HtCapabilityLen = 0, PreNHtCapabilityLen = 0;
 692         UCHAR                   AddHtInfoLen;
 693         UCHAR                   NewExtChannelOffset = 0xff;
 694 #ifdef DOT11_N_SUPPORT
 695         UCHAR                   CentralChannel;
 696 #endif // DOT11_N_SUPPORT //
 697
 698         // Init Variable IE structure
 699         pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
 700         pVIE->Length = 0;
 701     RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
 702         RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));
 703
 704
 705         if (PeerBeaconAndProbeRspSanity(pAd,
 706                                                                 Elem->Msg,
 707                                                                 Elem->MsgLen,
 708                                                                 Elem->Channel,
 709                                                                 Addr2,
 710                                                                 Bssid,
 711                                                                 Ssid,
 712                                                                 &SsidLen,
 713                                                                 &BssType,
 714                                                                 &BeaconPeriod,
 715                                                                 &Channel,
 716                                                                 &NewChannel,
 717                                                                 &TimeStamp,
 718                                                                 &Cf,
 719                                                                 &AtimWin,
 720                                                                 &CapabilityInfo,
 721                                                                 &Erp,
 722                                                                 &DtimCount,
 723                                                                 &DtimPeriod,
 724                                                                 &BcastFlag,
 725                                                                 &MessageToMe,
 726                                                                 SupRate,
 727                                                                 &SupRateLen,
 728                                                                 ExtRate,
 729                                                                 &ExtRateLen,
 730                                                                 &CkipFlag,
 731                                                                 &AironetCellPowerLimit,
 732                                                                 &EdcaParm,
 733                                                                 &QbssLoad,
 734                                                                 &QosCapability,
 735                                                                 &RalinkIe,
 736                                                                 &HtCapabilityLen,
 737                                                                 &PreNHtCapabilityLen,
 738                                                                 &HtCapability,
 739                                                                 &AddHtInfoLen,
 740                                                                 &AddHtInfo,
 741                                                                 &NewExtChannelOffset,
 742                                                                 &LenVIE,
 743                                                                 pVIE))
 744         {
 745                 // Disqualify 11b only adhoc when we are in 11g only adhoc mode
 746                 if ((BssType == BSS_ADHOC) && (pAd->CommonCfg.PhyMode == PHY_11G) && ((SupRateLen+ExtRateLen)< 12))
 747                         return;
 748
 749                 // BEACON from desired BSS/IBSS found. We should be able to decide most
 750                 // BSS parameters here.
 751                 // Q. But what happen if this JOIN doesn't conclude a successful ASSOCIATEION?
 752                 //    Do we need to receover back all parameters belonging to previous BSS?
 753                 // A. Should be not. There's no back-door recover to previous AP. It still need
 754                 //    a new JOIN-AUTH-ASSOC sequence.
 755                 if (MAC_ADDR_EQUAL(pAd->MlmeAux.Bssid, Bssid))
 756                 {
 757                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - receive desired BEACON at JoinWaitBeacon... Channel = %d\n", Channel));
 758                         RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
 759
 760                         // Update RSSI to prevent No signal display when cards first initialized
 761                         pAd->StaCfg.RssiSample.LastRssi0        = ConvertToRssi(pAd, Elem->Rssi0, RSSI_0);
 762                         pAd->StaCfg.RssiSample.LastRssi1        = ConvertToRssi(pAd, Elem->Rssi1, RSSI_1);
 763                         pAd->StaCfg.RssiSample.LastRssi2        = ConvertToRssi(pAd, Elem->Rssi2, RSSI_2);
 764                         pAd->StaCfg.RssiSample.AvgRssi0 = pAd->StaCfg.RssiSample.LastRssi0;
 765                         pAd->StaCfg.RssiSample.AvgRssi0X8       = pAd->StaCfg.RssiSample.AvgRssi0 << 3;
 766                         pAd->StaCfg.RssiSample.AvgRssi1 = pAd->StaCfg.RssiSample.LastRssi1;
 767                         pAd->StaCfg.RssiSample.AvgRssi1X8       = pAd->StaCfg.RssiSample.AvgRssi1 << 3;
 768                         pAd->StaCfg.RssiSample.AvgRssi2 = pAd->StaCfg.RssiSample.LastRssi2;
 769                         pAd->StaCfg.RssiSample.AvgRssi2X8       = pAd->StaCfg.RssiSample.AvgRssi2 << 3;
 770
 771                         //
 772                         // We need to check if SSID only set to any, then we can record the current SSID.
 773                         // Otherwise will cause hidden SSID association failed.
 774                         //
 775                         if (pAd->MlmeAux.SsidLen == 0)
 776                         {
 777                                 NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
 778                                 pAd->MlmeAux.SsidLen = SsidLen;
 779                         }
 780                         else
 781                         {
 782                                 Idx = BssSsidTableSearch(&pAd->ScanTab, Bssid, pAd->MlmeAux.Ssid, pAd->MlmeAux.SsidLen, Channel);
 783
 784                                 if (Idx != BSS_NOT_FOUND)
 785                                 {
 786                                         //
 787                                         // Multiple SSID case, used correct CapabilityInfo
 788                                         //
 789                                         CapabilityInfo = pAd->ScanTab.BssEntry[Idx].CapabilityInfo;
 790                                 }
 791                         }
 792                         NdisMoveMemory(pAd->MlmeAux.Bssid, Bssid, MAC_ADDR_LEN);
 793                         pAd->MlmeAux.CapabilityInfo = CapabilityInfo & SUPPORTED_CAPABILITY_INFO;
 794                         pAd->MlmeAux.BssType = BssType;
 795                         pAd->MlmeAux.BeaconPeriod = BeaconPeriod;
 796                         pAd->MlmeAux.Channel = Channel;
 797                         pAd->MlmeAux.AtimWin = AtimWin;
 798                         pAd->MlmeAux.CfpPeriod = Cf.CfpPeriod;
 799                         pAd->MlmeAux.CfpMaxDuration = Cf.CfpMaxDuration;
 800                         pAd->MlmeAux.APRalinkIe = RalinkIe;
 801
 802                         // Copy AP's supported rate to MlmeAux for creating assoication request
 803                         // Also filter out not supported rate
 804                         pAd->MlmeAux.SupRateLen = SupRateLen;
 805                         NdisMoveMemory(pAd->MlmeAux.SupRate, SupRate, SupRateLen);
 806                         RTMPCheckRates(pAd, pAd->MlmeAux.SupRate, &pAd->MlmeAux.SupRateLen);
 807                         pAd->MlmeAux.ExtRateLen = ExtRateLen;
 808                         NdisMoveMemory(pAd->MlmeAux.ExtRate, ExtRate, ExtRateLen);
 809                         RTMPCheckRates(pAd, pAd->MlmeAux.ExtRate, &pAd->MlmeAux.ExtRateLen);
 810
 811             NdisZeroMemory(pAd->StaActive.SupportedPhyInfo.MCSSet, 16);
 812 #ifdef DOT11_N_SUPPORT
 813                         pAd->MlmeAux.NewExtChannelOffset = NewExtChannelOffset;
 814                         pAd->MlmeAux.HtCapabilityLen = HtCapabilityLen;
 815
 816                         // filter out un-supported ht rates
 817                         if (((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0)) && (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED))
 818                         {
 819                                 RTMPZeroMemory(&pAd->MlmeAux.HtCapability, SIZE_HT_CAP_IE);
 820                                 RTMPMoveMemory(&pAd->MlmeAux.AddHtInfo, &AddHtInfo, SIZE_ADD_HT_INFO_IE);
 821
 822                                 // StaActive.SupportedHtPhy.MCSSet stores Peer AP's 11n Rx capability
 823                                 NdisMoveMemory(pAd->StaActive.SupportedPhyInfo.MCSSet, HtCapability.MCSSet, 16);
 824                                 pAd->MlmeAux.NewExtChannelOffset = NewExtChannelOffset;
 825                                 pAd->MlmeAux.HtCapabilityLen = SIZE_HT_CAP_IE;
 826                                 pAd->StaActive.SupportedPhyInfo.bHtEnable = TRUE;
 827                                 if (PreNHtCapabilityLen > 0)
 828                                         pAd->StaActive.SupportedPhyInfo.bPreNHt = TRUE;
 829                                 RTMPCheckHt(pAd, BSSID_WCID, &HtCapability, &AddHtInfo);
 830                                 // Copy AP Parameter to StaActive.  This is also in LinkUp.
 831                                 DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAtJoinAction! (MpduDensity=%d, MaxRAmpduFactor=%d, BW=%d)\n",
 832                                         pAd->StaActive.SupportedHtPhy.MpduDensity, pAd->StaActive.SupportedHtPhy.MaxRAmpduFactor, HtCapability.HtCapInfo.ChannelWidth));
 833
 834                                 if (AddHtInfoLen > 0)
 835                                 {
 836                                         CentralChannel = AddHtInfo.ControlChan;
 837                                         // Check again the Bandwidth capability of this AP.
 838                                         if ((AddHtInfo.ControlChan > 2)&& (AddHtInfo.AddHtInfo.ExtChanOffset == EXTCHA_BELOW) && (HtCapability.HtCapInfo.ChannelWidth == BW_40))
 839                                         {
 840                                                 CentralChannel = AddHtInfo.ControlChan - 2;
 841                                         }
 842                                         else if ((AddHtInfo.AddHtInfo.ExtChanOffset == EXTCHA_ABOVE) && (HtCapability.HtCapInfo.ChannelWidth == BW_40))
 843                                         {
 844                                                 CentralChannel = AddHtInfo.ControlChan + 2;
 845                                         }
 846
 847                                         // Check Error .
 848                                         if (pAd->MlmeAux.CentralChannel != CentralChannel)
 849                                                 DBGPRINT(RT_DEBUG_ERROR, ("PeerBeaconAtJoinAction HT===>Beacon Central Channel = %d, Control Channel = %d. Mlmeaux CentralChannel = %d\n", CentralChannel, AddHtInfo.ControlChan, pAd->MlmeAux.CentralChannel));
 850
 851                                         DBGPRINT(RT_DEBUG_TRACE, ("PeerBeaconAtJoinAction HT===>Central Channel = %d, Control Channel = %d,  .\n", CentralChannel, AddHtInfo.ControlChan));
 852
 853                                 }
 854
 855                         }
 856                         else
 857 #endif // DOT11_N_SUPPORT //
 858                         {
 859                                 // To prevent error, let legacy AP must have same CentralChannel and Channel.
 860                                 if ((HtCapabilityLen == 0) && (PreNHtCapabilityLen == 0))
 861                                         pAd->MlmeAux.CentralChannel = pAd->MlmeAux.Channel;
 862
 863                                 pAd->StaActive.SupportedPhyInfo.bHtEnable = FALSE;
 864                                 RTMPZeroMemory(&pAd->MlmeAux.HtCapability, SIZE_HT_CAP_IE);
 865                                 RTMPZeroMemory(&pAd->MlmeAux.AddHtInfo, SIZE_ADD_HT_INFO_IE);
 866                         }
 867
 868                         RTMPUpdateMlmeRate(pAd);
 869
 870                         // copy QOS related information
 871                         if ((pAd->CommonCfg.bWmmCapable)
 872 #ifdef DOT11_N_SUPPORT
 873                                  || (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
 874 #endif // DOT11_N_SUPPORT //
 875                                 )
 876                         {
 877                                 NdisMoveMemory(&pAd->MlmeAux.APEdcaParm, &EdcaParm, sizeof(EDCA_PARM));
 878                                 NdisMoveMemory(&pAd->MlmeAux.APQbssLoad, &QbssLoad, sizeof(QBSS_LOAD_PARM));
 879                                 NdisMoveMemory(&pAd->MlmeAux.APQosCapability, &QosCapability, sizeof(QOS_CAPABILITY_PARM));
 880                         }
 881                         else
 882                         {
 883                                 NdisZeroMemory(&pAd->MlmeAux.APEdcaParm, sizeof(EDCA_PARM));
 884                                 NdisZeroMemory(&pAd->MlmeAux.APQbssLoad, sizeof(QBSS_LOAD_PARM));
 885                                 NdisZeroMemory(&pAd->MlmeAux.APQosCapability, sizeof(QOS_CAPABILITY_PARM));
 886                         }
 887
 888                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - after JOIN, SupRateLen=%d, ExtRateLen=%d\n",
 889                                                                                 pAd->MlmeAux.SupRateLen, pAd->MlmeAux.ExtRateLen));
 890
 891                         if (AironetCellPowerLimit != 0xFF)
 892                         {
 893                                 //We need to change our TxPower for CCX 2.0 AP Control of Client Transmit Power
 894                                 ChangeToCellPowerLimit(pAd, AironetCellPowerLimit);
 895                         }
 896                         else  //Used the default TX Power Percentage.
 897                                 pAd->CommonCfg.TxPowerPercentage = pAd->CommonCfg.TxPowerDefault;
 898
 899                         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
 900                         Status = MLME_SUCCESS;
 901                         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
 902                 }
 903                 // not to me BEACON, ignored
 904         }
 905         // sanity check fail, ignore this frame
 906 }
 907
 908 /*
 909         ==========================================================================
 910         Description:
 911                 receive BEACON from peer
 912
 913         IRQL = DISPATCH_LEVEL
 914
 915         ==========================================================================
 916  */
 917 VOID PeerBeacon(
 918         IN PRTMP_ADAPTER pAd,
 919         IN MLME_QUEUE_ELEM *Elem)
 920 {
 921         UCHAR         Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
 922         CHAR          Ssid[MAX_LEN_OF_SSID];
 923         CF_PARM       CfParm;
 924         UCHAR         SsidLen, MessageToMe=0, BssType, Channel, NewChannel, index=0;
 925         UCHAR         DtimCount=0, DtimPeriod=0, BcastFlag=0;
 926         USHORT        CapabilityInfo, AtimWin, BeaconPeriod;
 927         LARGE_INTEGER TimeStamp;
 928         USHORT        TbttNumToNextWakeUp;
 929         UCHAR         Erp;
 930         UCHAR         SupRate[MAX_LEN_OF_SUPPORTED_RATES], ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
 931         UCHAR             SupRateLen, ExtRateLen;
 932         UCHAR             CkipFlag;
 933         USHORT        LenVIE;
 934         UCHAR             AironetCellPowerLimit;
 935         EDCA_PARM       EdcaParm;
 936         QBSS_LOAD_PARM  QbssLoad;
 937         QOS_CAPABILITY_PARM QosCapability;
 938         ULONG           RalinkIe;
 939         // New for WPA security suites
 940         UCHAR                                           VarIE[MAX_VIE_LEN];             // Total VIE length = MAX_VIE_LEN - -5
 941         NDIS_802_11_VARIABLE_IEs        *pVIE = NULL;
 942         HT_CAPABILITY_IE                HtCapability;
 943         ADD_HT_INFO_IE          AddHtInfo;      // AP might use this additional ht info IE
 944         UCHAR                   HtCapabilityLen, PreNHtCapabilityLen;
 945         UCHAR                   AddHtInfoLen;
 946         UCHAR                   NewExtChannelOffset = 0xff;
 947
 948         if (!(INFRA_ON(pAd) || ADHOC_ON(pAd)
 949                 ))
 950                 return;
 951
 952         // Init Variable IE structure
 953         pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
 954         pVIE->Length = 0;
 955     RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
 956         RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));
 957
 958         if (PeerBeaconAndProbeRspSanity(pAd,
 959                                                                 Elem->Msg,
 960                                                                 Elem->MsgLen,
 961                                                                 Elem->Channel,
 962                                                                 Addr2,
 963                                                                 Bssid,
 964                                                                 Ssid,
 965                                                                 &SsidLen,
 966                                                                 &BssType,
 967                                                                 &BeaconPeriod,
 968                                                                 &Channel,
 969                                                                 &NewChannel,
 970                                                                 &TimeStamp,
 971                                                                 &CfParm,
 972                                                                 &AtimWin,
 973                                                                 &CapabilityInfo,
 974                                                                 &Erp,
 975                                                                 &DtimCount,
 976                                                                 &DtimPeriod,
 977                                                                 &BcastFlag,
 978                                                                 &MessageToMe,
 979                                                                 SupRate,
 980                                                                 &SupRateLen,
 981                                                                 ExtRate,
 982                                                                 &ExtRateLen,
 983                                                                 &CkipFlag,
 984                                                                 &AironetCellPowerLimit,
 985                                                                 &EdcaParm,
 986                                                                 &QbssLoad,
 987                                                                 &QosCapability,
 988                                                                 &RalinkIe,
 989                                                                 &HtCapabilityLen,
 990                                                                 &PreNHtCapabilityLen,
 991                                                                 &HtCapability,
 992                                                                 &AddHtInfoLen,
 993                                                                 &AddHtInfo,
 994                                                                 &NewExtChannelOffset,
 995                                                                 &LenVIE,
 996                                                                 pVIE))
 997         {
 998                 BOOLEAN is_my_bssid, is_my_ssid;
 999                 ULONG   Bssidx, Now;
1000                 BSS_ENTRY *pBss;
1001                 CHAR            RealRssi = RTMPMaxRssi(pAd, ConvertToRssi(pAd, Elem->Rssi0, RSSI_0), ConvertToRssi(pAd, Elem->Rssi1, RSSI_1), ConvertToRssi(pAd, Elem->Rssi2, RSSI_2));
1002
1003                 is_my_bssid = MAC_ADDR_EQUAL(Bssid, pAd->CommonCfg.Bssid)? TRUE : FALSE;
1004                 is_my_ssid = SSID_EQUAL(Ssid, SsidLen, pAd->CommonCfg.Ssid, pAd->CommonCfg.SsidLen)? TRUE:FALSE;
1005
1006
1007                 // ignore BEACON not for my SSID
1008                 if ((! is_my_ssid) && (! is_my_bssid))
1009                         return;
1010
1011                 // It means STA waits disassoc completely from this AP, ignores this beacon.
1012                 if (pAd->Mlme.CntlMachine.CurrState == CNTL_WAIT_DISASSOC)
1013                         return;
1014
1015 #ifdef DOT11_N_SUPPORT
1016                 // Copy Control channel for this BSSID.
1017                 if (AddHtInfoLen != 0)
1018                         Channel = AddHtInfo.ControlChan;
1019
1020                 if ((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
1021                         HtCapabilityLen = SIZE_HT_CAP_IE;
1022 #endif // DOT11_N_SUPPORT //
1023
1024                 //
1025                 // Housekeeping "SsidBssTab" table for later-on ROAMing usage.
1026                 //
1027                 Bssidx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
1028                 if (Bssidx == BSS_NOT_FOUND)
1029                 {
1030                         // discover new AP of this network, create BSS entry
1031                         Bssidx = BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
1032                                                  &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen, ExtRate, ExtRateLen,
1033                                                 &HtCapability, &AddHtInfo,HtCapabilityLen,AddHtInfoLen,NewExtChannelOffset, Channel,
1034                                                 RealRssi, TimeStamp, CkipFlag, &EdcaParm, &QosCapability,
1035                                                 &QbssLoad, LenVIE, pVIE);
1036                         if (Bssidx == BSS_NOT_FOUND) // return if BSS table full
1037                                 return;
1038
1039                         NdisMoveMemory(pAd->ScanTab.BssEntry[Bssidx].PTSF, &Elem->Msg[24], 4);
1040                         NdisMoveMemory(&pAd->ScanTab.BssEntry[Bssidx].TTSF[0], &Elem->TimeStamp.u.LowPart, 4);
1041                         NdisMoveMemory(&pAd->ScanTab.BssEntry[Bssidx].TTSF[4], &Elem->TimeStamp.u.LowPart, 4);
1042
1043
1044
1045                 }
1046
1047                 if ((pAd->CommonCfg.bIEEE80211H == 1) && (NewChannel != 0) && (Channel != NewChannel))
1048                 {
1049                         // Switching to channel 1 can prevent from rescanning the current channel immediately (by auto reconnection).
1050                         // In addition, clear the MLME queue and the scan table to discard the RX packets and previous scanning results.
1051                         AsicSwitchChannel(pAd, 1, FALSE);
1052                         AsicLockChannel(pAd, 1);
1053                     LinkDown(pAd, FALSE);
1054                         MlmeQueueInit(&pAd->Mlme.Queue);
1055                         BssTableInit(&pAd->ScanTab);
1056                     RTMPusecDelay(1000000);             // use delay to prevent STA do reassoc
1057
1058                         // channel sanity check
1059                         for (index = 0 ; index < pAd->ChannelListNum; index++)
1060                         {
1061                                 if (pAd->ChannelList[index].Channel == NewChannel)
1062                                 {
1063                                         pAd->ScanTab.BssEntry[Bssidx].Channel = NewChannel;
1064                                         pAd->CommonCfg.Channel = NewChannel;
1065                                         AsicSwitchChannel(pAd, pAd->CommonCfg.Channel, FALSE);
1066                                         AsicLockChannel(pAd, pAd->CommonCfg.Channel);
1067                                         DBGPRINT(RT_DEBUG_TRACE, ("PeerBeacon - STA receive channel switch announcement IE (New Channel =%d)\n", NewChannel));
1068                                         break;
1069                                 }
1070                         }
1071
1072                         if (index >= pAd->ChannelListNum)
1073                         {
1074                                 DBGPRINT_ERR(("PeerBeacon(can not find New Channel=%d in ChannelList[%d]\n", pAd->CommonCfg.Channel, pAd->ChannelListNum));
1075                         }
1076                 }
1077
1078                 // if the ssid matched & bssid unmatched, we should select the bssid with large value.
1079                 // This might happened when two STA start at the same time
1080                 if ((! is_my_bssid) && ADHOC_ON(pAd))
1081                 {
1082                         INT     i;
1083
1084                         // Add the safeguard against the mismatch of adhoc wep status
1085                         if (pAd->StaCfg.WepStatus != pAd->ScanTab.BssEntry[Bssidx].WepStatus)
1086                         {
1087                                 return;
1088                         }
1089
1090                         // collapse into the ADHOC network which has bigger BSSID value.
1091                         for (i = 0; i < 6; i++)
1092                         {
1093                                 if (Bssid[i] > pAd->CommonCfg.Bssid[i])
1094                                 {
1095                                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - merge to the IBSS with bigger BSSID=%02x:%02x:%02x:%02x:%02x:%02x\n",
1096                                                 Bssid[0], Bssid[1], Bssid[2], Bssid[3], Bssid[4], Bssid[5]));
1097                                         AsicDisableSync(pAd);
1098                                         COPY_MAC_ADDR(pAd->CommonCfg.Bssid, Bssid);
1099                                         AsicSetBssid(pAd, pAd->CommonCfg.Bssid);
1100                                         MakeIbssBeacon(pAd);        // re-build BEACON frame
1101                                         AsicEnableIbssSync(pAd);    // copy BEACON frame to on-chip memory
1102                                         is_my_bssid = TRUE;
1103                                         break;
1104                                 }
1105                                 else if (Bssid[i] < pAd->CommonCfg.Bssid[i])
1106                                         break;
1107                         }
1108                 }
1109
1110
1111                 NdisGetSystemUpTime(&Now);
1112                 pBss = &pAd->ScanTab.BssEntry[Bssidx];
1113                 pBss->Rssi = RealRssi;       // lastest RSSI
1114                 pBss->LastBeaconRxTime = Now;   // last RX timestamp
1115
1116                 //
1117                 // BEACON from my BSSID - either IBSS or INFRA network
1118                 //
1119                 if (is_my_bssid)
1120                 {
1121                         RXWI_STRUC      RxWI;
1122
1123                         pAd->StaCfg.DtimCount = DtimCount;
1124                         pAd->StaCfg.DtimPeriod = DtimPeriod;
1125                         pAd->StaCfg.LastBeaconRxTime = Now;
1126
1127
1128                         RxWI.RSSI0 = Elem->Rssi0;
1129                         RxWI.RSSI1 = Elem->Rssi1;
1130                         RxWI.RSSI2 = Elem->Rssi2;
1131
1132                         Update_Rssi_Sample(pAd, &pAd->StaCfg.RssiSample, &RxWI);
1133                         if (AironetCellPowerLimit != 0xFF)
1134                         {
1135                                 //
1136                                 // We get the Cisco (ccx) "TxPower Limit" required
1137                                 // Changed to appropriate TxPower Limit for Ciso Compatible Extensions
1138                                 //
1139                                 ChangeToCellPowerLimit(pAd, AironetCellPowerLimit);
1140                         }
1141                         else
1142                         {
1143                                 //
1144                                 // AironetCellPowerLimit equal to 0xFF means the Cisco (ccx) "TxPower Limit" not exist.
1145                                 // Used the default TX Power Percentage, that set from UI.
1146                                 //
1147                                 pAd->CommonCfg.TxPowerPercentage = pAd->CommonCfg.TxPowerDefault;
1148                         }
1149
1150                         if (ADHOC_ON(pAd) && (CAP_IS_IBSS_ON(CapabilityInfo)))
1151                         {
1152                                 UCHAR                   MaxSupportedRateIn500Kbps = 0;
1153                                 UCHAR                   idx;
1154                                 MAC_TABLE_ENTRY *pEntry;
1155
1156                                 // supported rates array may not be sorted. sort it and find the maximum rate
1157                             for (idx=0; idx<SupRateLen; idx++)
1158                             {
1159                                 if (MaxSupportedRateIn500Kbps < (SupRate[idx] & 0x7f))
1160                                     MaxSupportedRateIn500Kbps = SupRate[idx] & 0x7f;
1161                             }
1162
1163                                 for (idx=0; idx<ExtRateLen; idx++)
1164                             {
1165                                 if (MaxSupportedRateIn500Kbps < (ExtRate[idx] & 0x7f))
1166                                     MaxSupportedRateIn500Kbps = ExtRate[idx] & 0x7f;
1167                             }
1168
1169                                 // look up the existing table
1170                                 pEntry = MacTableLookup(pAd, Addr2);
1171
1172                                 // Ad-hoc mode is using MAC address as BA session. So we need to continuously find newly joined adhoc station by receiving beacon.
1173                                 // To prevent always check this, we use wcid == RESERVED_WCID to recognize it as newly joined adhoc station.
1174                                 if ((ADHOC_ON(pAd) && (Elem->Wcid == RESERVED_WCID)) ||
1175                                         (pEntry && ((pEntry->LastBeaconRxTime + ADHOC_ENTRY_BEACON_LOST_TIME) < Now)))
1176                                 {
1177                                         if (pEntry == NULL)
1178                                                 // Another adhoc joining, add to our MAC table.
1179                                                 pEntry = MacTableInsertEntry(pAd, Addr2, BSS0, FALSE);
1180
1181                                         if (StaAddMacTableEntry(pAd, pEntry, MaxSupportedRateIn500Kbps, &HtCapability, HtCapabilityLen, CapabilityInfo) == FALSE)
1182                                         {
1183                                                 DBGPRINT(RT_DEBUG_TRACE, ("ADHOC - Add Entry failed.\n"));
1184                                                 return;
1185                                         }
1186
1187                                         if (pEntry &&
1188                                                 (Elem->Wcid == RESERVED_WCID))
1189                                         {
1190                                                 idx = pAd->StaCfg.DefaultKeyId;
1191                                                 RT28XX_STA_SECURITY_INFO_ADD(pAd, BSS0, idx, pEntry);
1192                                         }
1193                                 }
1194
1195                                 if (pEntry && pEntry->ValidAsCLI)
1196                                         pEntry->LastBeaconRxTime = Now;
1197
1198                                 // At least another peer in this IBSS, declare MediaState as CONNECTED
1199                                 if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED))
1200                                 {
1201                                         OPSTATUS_SET_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED);
1202
1203                                         pAd->IndicateMediaState = NdisMediaStateConnected;
1204                                         RTMP_IndicateMediaState(pAd);
1205                         pAd->ExtraInfo = GENERAL_LINK_UP;
1206                                         AsicSetBssid(pAd, pAd->CommonCfg.Bssid);
1207
1208                                         // 2003/03/12 - john
1209                                         // Make sure this entry in "ScanTab" table, thus complies to Microsoft's policy that
1210                                         // "site survey" result should always include the current connected network.
1211                                         //
1212                                         Bssidx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
1213                                         if (Bssidx == BSS_NOT_FOUND)
1214                                         {
1215                                                 Bssidx = BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid, SsidLen, BssType, BeaconPeriod,
1216                                                                         &CfParm, AtimWin, CapabilityInfo, SupRate, SupRateLen, ExtRate, ExtRateLen, &HtCapability,
1217                                                                         &AddHtInfo, HtCapabilityLen, AddHtInfoLen, NewExtChannelOffset, Channel, RealRssi, TimeStamp, 0,
1218                                                                         &EdcaParm, &QosCapability, &QbssLoad, LenVIE, pVIE);
1219                                         }
1220                                         DBGPRINT(RT_DEBUG_TRACE, ("ADHOC  fOP_STATUS_MEDIA_STATE_CONNECTED.\n"));
1221                                 }
1222                         }
1223
1224                         if (INFRA_ON(pAd))
1225                         {
1226                                 BOOLEAN bUseShortSlot, bUseBGProtection;
1227
1228                                 // decide to use/change to -
1229                                 //      1. long slot (20 us) or short slot (9 us) time
1230                                 //      2. turn on/off RTS/CTS and/or CTS-to-self protection
1231                                 //      3. short preamble
1232
1233                                 //bUseShortSlot = pAd->CommonCfg.bUseShortSlotTime && CAP_IS_SHORT_SLOT(CapabilityInfo);
1234                                 bUseShortSlot = CAP_IS_SHORT_SLOT(CapabilityInfo);
1235                                 if (bUseShortSlot != OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_SHORT_SLOT_INUSED))
1236                                         AsicSetSlotTime(pAd, bUseShortSlot);
1237
1238                                 bUseBGProtection = (pAd->CommonCfg.UseBGProtection == 1) ||    // always use
1239                                                                    ((pAd->CommonCfg.UseBGProtection == 0) && ERP_IS_USE_PROTECTION(Erp));
1240
1241                                 if (pAd->CommonCfg.Channel > 14) // always no BG protection in A-band. falsely happened when switching A/G band to a dual-band AP
1242                                         bUseBGProtection = FALSE;
1243
1244                                 if (bUseBGProtection != OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_BG_PROTECTION_INUSED))
1245                                 {
1246                                         if (bUseBGProtection)
1247                                         {
1248                                                 OPSTATUS_SET_FLAG(pAd, fOP_STATUS_BG_PROTECTION_INUSED);
1249                                                 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, (OFDMSETPROTECT|CCKSETPROTECT|ALLN_SETPROTECT),FALSE,(pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent == 1));
1250                                         }
1251                                         else
1252                                         {
1253                                                 OPSTATUS_CLEAR_FLAG(pAd, fOP_STATUS_BG_PROTECTION_INUSED);
1254                                                 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, (OFDMSETPROTECT|CCKSETPROTECT|ALLN_SETPROTECT),TRUE,(pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent == 1));
1255                                         }
1256
1257                                         DBGPRINT(RT_DEBUG_WARN, ("SYNC - AP changed B/G protection to %d\n", bUseBGProtection));
1258                                 }
1259
1260 #ifdef DOT11_N_SUPPORT
1261                                 // check Ht protection mode. and adhere to the Non-GF device indication by AP.
1262                                 if ((AddHtInfoLen != 0) &&
1263                                         ((AddHtInfo.AddHtInfo2.OperaionMode != pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode) ||
1264                                         (AddHtInfo.AddHtInfo2.NonGfPresent != pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent)))
1265                                 {
1266                                         pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent = AddHtInfo.AddHtInfo2.NonGfPresent;
1267                                         pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode = AddHtInfo.AddHtInfo2.OperaionMode;
1268                                         if (pAd->MlmeAux.AddHtInfo.AddHtInfo2.NonGfPresent == 1)
1269                                 {
1270                                                 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, ALLN_SETPROTECT, FALSE, TRUE);
1271                                         }
1272                                         else
1273                                                 AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode, ALLN_SETPROTECT, FALSE, FALSE);
1274
1275                                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - AP changed N OperaionMode to %d\n", pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode));
1276                                 }
1277 #endif // DOT11_N_SUPPORT //
1278
1279                                 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_SHORT_PREAMBLE_INUSED) &&
1280                                         ERP_IS_USE_BARKER_PREAMBLE(Erp))
1281                                 {
1282                                         MlmeSetTxPreamble(pAd, Rt802_11PreambleLong);
1283                                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - AP forced to use LONG preamble\n"));
1284                                 }
1285
1286                                 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_WMM_INUSED)    &&
1287                                         (EdcaParm.bValid == TRUE)                          &&
1288                                         (EdcaParm.EdcaUpdateCount != pAd->CommonCfg.APEdcaParm.EdcaUpdateCount))
1289                                 {
1290                                         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - AP change EDCA parameters(from %d to %d)\n",
1291                                                 pAd->CommonCfg.APEdcaParm.EdcaUpdateCount,
1292                                                 EdcaParm.EdcaUpdateCount));
1293                                         AsicSetEdcaParm(pAd, &EdcaParm);
1294                                 }
1295
1296                                 // copy QOS related information
1297                                 NdisMoveMemory(&pAd->CommonCfg.APQbssLoad, &QbssLoad, sizeof(QBSS_LOAD_PARM));
1298                                 NdisMoveMemory(&pAd->CommonCfg.APQosCapability, &QosCapability, sizeof(QOS_CAPABILITY_PARM));
1299                         }
1300
1301                         // only INFRASTRUCTURE mode support power-saving feature
1302                         if ((INFRA_ON(pAd) && (pAd->StaCfg.Psm == PWR_SAVE)) || (pAd->CommonCfg.bAPSDForcePowerSave))
1303                         {
1304                                 UCHAR FreeNumber;
1305                                 //  1. AP has backlogged unicast-to-me frame, stay AWAKE, send PSPOLL
1306                                 //  2. AP has backlogged broadcast/multicast frame and we want those frames, stay AWAKE
1307                                 //  3. we have outgoing frames in TxRing or MgmtRing, better stay AWAKE
1308                                 //  4. Psm change to PWR_SAVE, but AP not been informed yet, we better stay AWAKE
1309                                 //  5. otherwise, put PHY back to sleep to save battery.
1310                                 if (MessageToMe)
1311                                 {
1312                                         if (pAd->CommonCfg.bAPSDCapable && pAd->CommonCfg.APEdcaParm.bAPSDCapable &&
1313                                                 pAd->CommonCfg.bAPSDAC_BE && pAd->CommonCfg.bAPSDAC_BK && pAd->CommonCfg.bAPSDAC_VI && pAd->CommonCfg.bAPSDAC_VO)
1314                                         {
1315                                                 pAd->CommonCfg.bNeedSendTriggerFrame = TRUE;
1316                                         }
1317                                         else
1318                                                 RT28XX_PS_POLL_ENQUEUE(pAd);
1319                                 }
1320                                 else if (BcastFlag && (DtimCount == 0) && OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_RECEIVE_DTIM))
1321                                 {
1322                                 }
1323                                 else if ((pAd->TxSwQueue[QID_AC_BK].Number != 0)                                                                                                        ||
1324                                                 (pAd->TxSwQueue[QID_AC_BE].Number != 0)                                                                                                         ||
1325                                                 (pAd->TxSwQueue[QID_AC_VI].Number != 0)                                                                                                         ||
1326                                                 (pAd->TxSwQueue[QID_AC_VO].Number != 0)                                                                                                         ||
1327                                                 (RTMPFreeTXDRequest(pAd, QID_AC_BK, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS)      ||
1328                                                 (RTMPFreeTXDRequest(pAd, QID_AC_BE, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS)      ||
1329                                                 (RTMPFreeTXDRequest(pAd, QID_AC_VI, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS)      ||
1330                                                 (RTMPFreeTXDRequest(pAd, QID_AC_VO, TX_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS)      ||
1331                                                 (RTMPFreeTXDRequest(pAd, QID_MGMT, MGMT_RING_SIZE - 1, &FreeNumber) != NDIS_STATUS_SUCCESS))
1332                                 {
1333                                         // TODO: consider scheduled HCCA. might not be proper to use traditional DTIM-based power-saving scheme
1334                                         // can we cheat here (i.e. just check MGMT & AC_BE) for better performance?
1335                                 }
1336                                 else
1337                                 {
1338                                         USHORT NextDtim = DtimCount;
1339
1340                                         if (NextDtim == 0)
1341                                                 NextDtim = DtimPeriod;
1342
1343                                         TbttNumToNextWakeUp = pAd->StaCfg.DefaultListenCount;
1344                                         if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_RECEIVE_DTIM) && (TbttNumToNextWakeUp > NextDtim))
1345                                                 TbttNumToNextWakeUp = NextDtim;
1346
1347                                         if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
1348                                         {
1349                                                 AsicSleepThenAutoWakeup(pAd, TbttNumToNextWakeUp);
1350                                         }
1351                                 }
1352                         }
1353                 }
1354                 // not my BSSID, ignore it
1355         }
1356         // sanity check fail, ignore this frame
1357 }
1358
1359 /*
1360         ==========================================================================
1361         Description:
1362                 Receive PROBE REQ from remote peer when operating in IBSS mode
1363         ==========================================================================
1364  */
1365 VOID PeerProbeReqAction(
1366         IN PRTMP_ADAPTER pAd,
1367         IN MLME_QUEUE_ELEM *Elem)
1368 {
1369         UCHAR         Addr2[MAC_ADDR_LEN];
1370         CHAR          Ssid[MAX_LEN_OF_SSID];
1371         UCHAR         SsidLen;
1372 #ifdef DOT11_N_SUPPORT
1373         UCHAR             HtLen, AddHtLen, NewExtLen;
1374 #endif // DOT11_N_SUPPORT //
1375         HEADER_802_11 ProbeRspHdr;
1376         NDIS_STATUS   NStatus;
1377         PUCHAR        pOutBuffer = NULL;
1378         ULONG         FrameLen = 0;
1379         LARGE_INTEGER FakeTimestamp;
1380         UCHAR         DsLen = 1, IbssLen = 2;
1381         UCHAR         LocalErpIe[3] = {IE_ERP, 1, 0};
1382         BOOLEAN       Privacy;
1383         USHORT        CapabilityInfo;
1384         UCHAR             RSNIe = IE_WPA;
1385
1386         if (! ADHOC_ON(pAd))
1387                 return;
1388
1389         if (PeerProbeReqSanity(pAd, Elem->Msg, Elem->MsgLen, Addr2, Ssid, &SsidLen))
1390         {
1391                 if ((SsidLen == 0) || SSID_EQUAL(Ssid, SsidLen, pAd->CommonCfg.Ssid, pAd->CommonCfg.SsidLen))
1392                 {
1393                         // allocate and send out ProbeRsp frame
1394                         NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
1395                         if (NStatus != NDIS_STATUS_SUCCESS)
1396                                 return;
1397
1398                         //pAd->StaCfg.AtimWin = 0;  // ??????
1399
1400                         Privacy = (pAd->StaCfg.WepStatus == Ndis802_11Encryption1Enabled) ||
1401                                           (pAd->StaCfg.WepStatus == Ndis802_11Encryption2Enabled) ||
1402                                           (pAd->StaCfg.WepStatus == Ndis802_11Encryption3Enabled);
1403                         CapabilityInfo = CAP_GENERATE(0, 1, Privacy, (pAd->CommonCfg.TxPreamble == Rt802_11PreambleShort), 0, 0);
1404
1405                         MakeOutgoingFrame(pOutBuffer,                   &FrameLen,
1406                                                           sizeof(HEADER_802_11),        &ProbeRspHdr,
1407                                                           TIMESTAMP_LEN,                &FakeTimestamp,
1408                                                           2,                            &pAd->CommonCfg.BeaconPeriod,
1409                                                           2,                            &CapabilityInfo,
1410                                                           1,                            &SsidIe,
1411                                                           1,                            &pAd->CommonCfg.SsidLen,
1412                                                           pAd->CommonCfg.SsidLen,       pAd->CommonCfg.Ssid,
1413                                                           1,                            &SupRateIe,
1414                                                           1,                            &pAd->StaActive.SupRateLen,
1415                                                           pAd->StaActive.SupRateLen,    pAd->StaActive.SupRate,
1416                                                           1,                            &DsIe,
1417                                                           1,                            &DsLen,
1418                                                           1,                            &pAd->CommonCfg.Channel,
1419                                                           1,                            &IbssIe,
1420                                                           1,                            &IbssLen,
1421                                                           2,                            &pAd->StaActive.AtimWin,
1422                                                           END_OF_ARGS);
1423
1424                         if (pAd->StaActive.ExtRateLen)
1425                         {
1426                                 ULONG tmp;
1427                                 MakeOutgoingFrame(pOutBuffer + FrameLen,        &tmp,
1428                                                                   3,                            LocalErpIe,
1429                                                                   1,                            &ExtRateIe,
1430                                                                   1,                            &pAd->StaActive.ExtRateLen,
1431                                                                   pAd->StaActive.ExtRateLen,    &pAd->StaActive.ExtRate,
1432                                                                   END_OF_ARGS);
1433                                 FrameLen += tmp;
1434                         }
1435
1436                         // If adhoc secruity is set for WPA-None, append the cipher suite IE
1437                         if (pAd->StaCfg.AuthMode == Ndis802_11AuthModeWPANone)
1438                         {
1439                                 ULONG tmp;
1440                                 MakeOutgoingFrame(pOutBuffer + FrameLen,                &tmp,
1441                                                                         1,                              &RSNIe,
1442                                                                         1,                              &pAd->StaCfg.RSNIE_Len,
1443                                                                         pAd->StaCfg.RSNIE_Len,          pAd->StaCfg.RSN_IE,
1444                                                                         END_OF_ARGS);
1445                                 FrameLen += tmp;
1446                         }
1447 #ifdef DOT11_N_SUPPORT
1448                         if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
1449                         {
1450                                 ULONG TmpLen;
1451                                 UCHAR   BROADCOM[4] = {0x0, 0x90, 0x4c, 0x33};
1452                                 HtLen = sizeof(pAd->CommonCfg.HtCapability);
1453                                 AddHtLen = sizeof(pAd->CommonCfg.AddHTInfo);
1454                                 NewExtLen = 1;
1455                                 //New extension channel offset IE is included in Beacon, Probe Rsp or channel Switch Announcement Frame
1456                                 if (pAd->bBroadComHT == TRUE)
1457                                 {
1458                                         MakeOutgoingFrame(pOutBuffer + FrameLen,            &TmpLen,
1459                                                                   1,                                &WpaIe,
1460                                                                   4,                                &BROADCOM[0],
1461                                                                  pAd->MlmeAux.HtCapabilityLen,          &pAd->MlmeAux.HtCapability,
1462                                                                   END_OF_ARGS);
1463                                 }
1464                                 else
1465                                 {
1466                                 MakeOutgoingFrame(pOutBuffer + FrameLen,            &TmpLen,
1467                                                                   1,                                &HtCapIe,
1468                                                                   1,                                &HtLen,
1469                                                                  sizeof(HT_CAPABILITY_IE),          &pAd->CommonCfg.HtCapability,
1470                                                                   1,                                &AddHtInfoIe,
1471                                                                   1,                                &AddHtLen,
1472                                                                  sizeof(ADD_HT_INFO_IE),          &pAd->CommonCfg.AddHTInfo,
1473                                                                   1,                                &NewExtChanIe,
1474                                                                   1,                                &NewExtLen,
1475                                                                  sizeof(NEW_EXT_CHAN_IE),          &pAd->CommonCfg.NewExtChanOffset,
1476                                                                   END_OF_ARGS);
1477                                 }
1478                                 FrameLen += TmpLen;
1479                         }
1480 #endif // DOT11_N_SUPPORT //
1481                         MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
1482                         MlmeFreeMemory(pAd, pOutBuffer);
1483                 }
1484         }
1485 }
1486
1487 VOID BeaconTimeoutAtJoinAction(
1488         IN PRTMP_ADAPTER pAd,
1489         IN MLME_QUEUE_ELEM *Elem)
1490 {
1491         USHORT Status;
1492         DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BeaconTimeoutAtJoinAction\n"));
1493         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1494         Status = MLME_REJ_TIMEOUT;
1495         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
1496 }
1497
1498 /*
1499         ==========================================================================
1500         Description:
1501                 Scan timeout procedure. basically add channel index by 1 and rescan
1502         ==========================================================================
1503  */
1504 VOID ScanTimeoutAction(
1505         IN PRTMP_ADAPTER pAd,
1506         IN MLME_QUEUE_ELEM *Elem)
1507 {
1508         pAd->MlmeAux.Channel = NextChannel(pAd, pAd->MlmeAux.Channel);
1509
1510         // Only one channel scanned for CISCO beacon request
1511         if ((pAd->MlmeAux.ScanType == SCAN_CISCO_ACTIVE) ||
1512                 (pAd->MlmeAux.ScanType == SCAN_CISCO_PASSIVE) ||
1513                 (pAd->MlmeAux.ScanType == SCAN_CISCO_NOISE) ||
1514                 (pAd->MlmeAux.ScanType == SCAN_CISCO_CHANNEL_LOAD))
1515                 pAd->MlmeAux.Channel = 0;
1516
1517         // this routine will stop if pAd->MlmeAux.Channel == 0
1518         ScanNextChannel(pAd);
1519 }
1520
1521 /*
1522         ==========================================================================
1523         Description:
1524         ==========================================================================
1525  */
1526 VOID InvalidStateWhenScan(
1527         IN PRTMP_ADAPTER pAd,
1528         IN MLME_QUEUE_ELEM *Elem)
1529 {
1530         USHORT Status;
1531         DBGPRINT(RT_DEBUG_TRACE, ("AYNC - InvalidStateWhenScan(state=%ld). Reset SYNC machine\n", pAd->Mlme.SyncMachine.CurrState));
1532         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1533         Status = MLME_STATE_MACHINE_REJECT;
1534         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
1535 }
1536
1537 /*
1538         ==========================================================================
1539         Description:
1540         ==========================================================================
1541  */
1542 VOID InvalidStateWhenJoin(
1543         IN PRTMP_ADAPTER pAd,
1544         IN MLME_QUEUE_ELEM *Elem)
1545 {
1546         USHORT Status;
1547         DBGPRINT(RT_DEBUG_TRACE, ("InvalidStateWhenJoin(state=%ld). Reset SYNC machine\n", pAd->Mlme.SyncMachine.CurrState));
1548         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1549         Status = MLME_STATE_MACHINE_REJECT;
1550         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
1551 }
1552
1553 /*
1554         ==========================================================================
1555         Description:
1556         ==========================================================================
1557  */
1558 VOID InvalidStateWhenStart(
1559         IN PRTMP_ADAPTER pAd,
1560         IN MLME_QUEUE_ELEM *Elem)
1561 {
1562         USHORT Status;
1563         DBGPRINT(RT_DEBUG_TRACE, ("InvalidStateWhenStart(state=%ld). Reset SYNC machine\n", pAd->Mlme.SyncMachine.CurrState));
1564         pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
1565         Status = MLME_STATE_MACHINE_REJECT;
1566         MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
1567 }
1568
1569 /*
1570         ==========================================================================
1571         Description:
1572
1573         IRQL = DISPATCH_LEVEL
1574
1575         ==========================================================================
1576  */
1577 VOID EnqueuePsPoll(
1578         IN PRTMP_ADAPTER pAd)
1579 {
1580         if (pAd->StaCfg.WindowsPowerMode == Ndis802_11PowerModeLegacy_PSP)
1581         pAd->PsPollFrame.FC.PwrMgmt = PWR_SAVE;
1582         MiniportMMRequest(pAd, 0, (PUCHAR)&pAd->PsPollFrame, sizeof(PSPOLL_FRAME));
1583 }
1584
1585
1586 /*
1587         ==========================================================================
1588         Description:
1589         ==========================================================================
1590  */
1591 VOID EnqueueProbeRequest(
1592         IN PRTMP_ADAPTER pAd)
1593 {
1594         NDIS_STATUS     NState;
1595         PUCHAR          pOutBuffer;
1596         ULONG           FrameLen = 0;
1597         HEADER_802_11   Hdr80211;
1598
1599         DBGPRINT(RT_DEBUG_TRACE, ("force out a ProbeRequest ...\n"));
1600
1601         NState = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
1602         if (NState == NDIS_STATUS_SUCCESS)
1603         {
1604                 MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0, BROADCAST_ADDR, BROADCAST_ADDR);
1605
1606                 // this ProbeRequest explicitly specify SSID to reduce unwanted ProbeResponse
1607                 MakeOutgoingFrame(pOutBuffer,                     &FrameLen,
1608                                                   sizeof(HEADER_802_11),          &Hdr80211,
1609                                                   1,                              &SsidIe,
1610                                                   1,                              &pAd->CommonCfg.SsidLen,
1611                                                   pAd->CommonCfg.SsidLen,                 pAd->CommonCfg.Ssid,
1612                                                   1,                              &SupRateIe,
1613                                                   1,                              &pAd->StaActive.SupRateLen,
1614                                                   pAd->StaActive.SupRateLen,      pAd->StaActive.SupRate,
1615                                                   END_OF_ARGS);
1616                 MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
1617                 MlmeFreeMemory(pAd, pOutBuffer);
1618         }
1619
1620 }
1621
1622 #ifdef DOT11_N_SUPPORT
1623 #ifdef DOT11N_DRAFT3
1624 VOID BuildEffectedChannelList(
1625         IN PRTMP_ADAPTER pAd)
1626 {
1627         UCHAR           EChannel[11];
1628         UCHAR           i, j, k;
1629         UCHAR           UpperChannel = 0, LowerChannel = 0;
1630
1631         RTMPZeroMemory(EChannel, 11);
1632         i = 0;
1633         // Find upper channel and lower channel.
1634         if (pAd->CommonCfg.CentralChannel < pAd->CommonCfg.Channel)
1635         {
1636                 UpperChannel = pAd->CommonCfg.Channel;
1637                 LowerChannel = pAd->CommonCfg.CentralChannel;
1638         }
1639         else if (pAd->CommonCfg.CentralChannel > pAd->CommonCfg.Channel)
1640         {
1641                 UpperChannel = pAd->CommonCfg.CentralChannel;
1642                 LowerChannel = pAd->CommonCfg.Channel;
1643         }
1644         else
1645         {
1646                 return;
1647         }
1648
1649         // Record channels that is below lower channel..
1650         if (LowerChannel > 1)
1651         {
1652                 EChannel[0] = LowerChannel - 1;
1653                 i = 1;
1654                 if (LowerChannel > 2)
1655                 {
1656                         EChannel[1] = LowerChannel - 2;
1657                         i = 2;
1658                         if (LowerChannel > 3)
1659                         {
1660                                 EChannel[2] = LowerChannel - 3;
1661                                 i = 3;
1662                         }
1663                 }
1664         }
1665         // Record channels that is between  lower channel and upper channel.
1666         for (k = LowerChannel;k < UpperChannel;k++)
1667         {
1668                 EChannel[i] = k;
1669                 i++;
1670         }
1671         // Record channels that is above upper channel..
1672         if (LowerChannel < 11)
1673         {
1674                 EChannel[i] = UpperChannel + 1;
1675                 i++;
1676                 if (LowerChannel < 10)
1677                 {
1678                         EChannel[i] = LowerChannel + 2;
1679                         i++;
1680                         if (LowerChannel < 9)
1681                         {
1682                                 EChannel[i] = LowerChannel + 3;
1683                                 i++;
1684                         }
1685                 }
1686         }
1687         //
1688         for (j = 0;j < i;j++)
1689         {
1690                 for (k = 0;k < pAd->ChannelListNum;k++)
1691                 {
1692                         if (pAd->ChannelList[k].Channel == EChannel[j])
1693                         {
1694                                 pAd->ChannelList[k].bEffectedChannel = TRUE;
1695                                 DBGPRINT(RT_DEBUG_TRACE,(" EffectedChannel( =%d)\n", EChannel[j]));
1696                                 break;
1697                         }
1698                 }
1699         }
1700 }
1701 #endif // DOT11N_DRAFT3 //
1702 #endif // DOT11_N_SUPPORT //
1703
1704 BOOLEAN ScanRunning(
1705                 IN PRTMP_ADAPTER pAd)
1706 {
1707         return (pAd->Mlme.SyncMachine.CurrState == SCAN_LISTEN) ? TRUE : FALSE;
1708 }
1709