path: root/drivers/staging/rt2860/sta/sync.c

/*
 *************************************************************************
 * Ralink Tech Inc.
 * 5F., No.36, Taiyuan St., Jhubei City,
 * Hsinchu County 302,
 * Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2007, Ralink Technology, Inc.
 *
 * This program is free software; you can redistribute it and/or modify  *
 * it under the terms of the GNU General Public License as published by  *
 * the Free Software Foundation; either version 2 of the License, or     *
 * (at your option) any later version.                                   *
 *                                                                       *
 * This program is distributed in the hope that it will be useful,       *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 * GNU General Public License for more details.                          *
 *                                                                       *
 * You should have received a copy of the GNU General Public License     *
 * along with this program; if not, write to the                         *
 * Free Software Foundation, Inc.,                                       *
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 *                                                                       *
 *************************************************************************

	Module Name:
	sync.c

	Abstract:

	Revision History:
	Who			When			What
	--------	----------		----------------------------------------------
	John Chang	2004-09-01      modified for rt2561/2661
	Jan Lee		2006-08-01      modified for rt2860 for 802.11n
*/
#include "../rt_config.h"

#define ADHOC_ENTRY_BEACON_LOST_TIME	(2*OS_HZ)	/* 2 sec */

/*
	==========================================================================
	Description:
		The sync state machine,
	Parameters:
		Sm - pointer to the state machine
	Note:
		the state machine looks like the following

	==========================================================================
 */
VOID SyncStateMachineInit(IN PRTMP_ADAPTER pAd,
			  IN STATE_MACHINE * Sm, OUT STATE_MACHINE_FUNC Trans[])
{
	StateMachineInit(Sm, Trans, MAX_SYNC_STATE, MAX_SYNC_MSG,
			 (STATE_MACHINE_FUNC) Drop, SYNC_IDLE,
			 SYNC_MACHINE_BASE);

	/* column 1 */
	StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_SCAN_REQ,
			      (STATE_MACHINE_FUNC) MlmeScanReqAction);
	StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_JOIN_REQ,
			      (STATE_MACHINE_FUNC) MlmeJoinReqAction);
	StateMachineSetAction(Sm, SYNC_IDLE, MT2_MLME_START_REQ,
			      (STATE_MACHINE_FUNC) MlmeStartReqAction);
	StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_BEACON,
			      (STATE_MACHINE_FUNC) PeerBeacon);
	StateMachineSetAction(Sm, SYNC_IDLE, MT2_PEER_PROBE_REQ,
			      (STATE_MACHINE_FUNC) PeerProbeReqAction);

	/*column 2 */
	StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_SCAN_REQ,
			      (STATE_MACHINE_FUNC) InvalidStateWhenScan);
	StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_JOIN_REQ,
			      (STATE_MACHINE_FUNC) InvalidStateWhenJoin);
	StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_MLME_START_REQ,
			      (STATE_MACHINE_FUNC) InvalidStateWhenStart);
	StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_PEER_BEACON,
			      (STATE_MACHINE_FUNC) PeerBeaconAtJoinAction);
	StateMachineSetAction(Sm, JOIN_WAIT_BEACON, MT2_BEACON_TIMEOUT,
			      (STATE_MACHINE_FUNC) BeaconTimeoutAtJoinAction);

	/* column 3 */
	StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_SCAN_REQ,
			      (STATE_MACHINE_FUNC) InvalidStateWhenScan);
	StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_JOIN_REQ,
			      (STATE_MACHINE_FUNC) InvalidStateWhenJoin);
	StateMachineSetAction(Sm, SCAN_LISTEN, MT2_MLME_START_REQ,
			      (STATE_MACHINE_FUNC) InvalidStateWhenStart);
	StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_BEACON,
			      (STATE_MACHINE_FUNC) PeerBeaconAtScanAction);
	StateMachineSetAction(Sm, SCAN_LISTEN, MT2_PEER_PROBE_RSP,
			      (STATE_MACHINE_FUNC) PeerBeaconAtScanAction);
	StateMachineSetAction(Sm, SCAN_LISTEN, MT2_SCAN_TIMEOUT,
			      (STATE_MACHINE_FUNC) ScanTimeoutAction);

	/* timer init */
	RTMPInitTimer(pAd, &pAd->MlmeAux.BeaconTimer,
		      GET_TIMER_FUNCTION(BeaconTimeout), pAd, FALSE);
	RTMPInitTimer(pAd, &pAd->MlmeAux.ScanTimer,
		      GET_TIMER_FUNCTION(ScanTimeout), pAd, FALSE);
}

/*
	==========================================================================
	Description:
		Beacon timeout handler, executed in timer thread

	IRQL = DISPATCH_LEVEL

	==========================================================================
 */
VOID BeaconTimeout(IN PVOID SystemSpecific1,
		   IN PVOID FunctionContext,
		   IN PVOID SystemSpecific2, IN PVOID SystemSpecific3)
{
	RTMP_ADAPTER *pAd = (RTMP_ADAPTER *) FunctionContext;

	DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BeaconTimeout\n"));

	/* Do nothing if the driver is starting halt state. */
	/* This might happen when timer already been fired before cancel timer with mlmehalt */
	if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS))
		return;

	if ((pAd->CommonCfg.BBPCurrentBW == BW_40)
	    ) {
		UCHAR BBPValue = 0;
		AsicSwitchChannel(pAd, pAd->CommonCfg.CentralChannel, FALSE);
		AsicLockChannel(pAd, pAd->CommonCfg.CentralChannel);
		RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
		BBPValue &= (~0x18);
		BBPValue |= 0x10;
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
		DBGPRINT(RT_DEBUG_TRACE,
			 ("SYNC - End of SCAN, restore to 40MHz channel %d, Total BSS[%02d]\n",
			  pAd->CommonCfg.CentralChannel, pAd->ScanTab.BssNr));
	}

	MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_BEACON_TIMEOUT, 0, NULL);
	RTMP_MLME_HANDLER(pAd);
}

/*
	==========================================================================
	Description:
		Scan timeout handler, executed in timer thread

	IRQL = DISPATCH_LEVEL

	==========================================================================
 */
VOID ScanTimeout(IN PVOID SystemSpecific1,
		 IN PVOID FunctionContext,
		 IN PVOID SystemSpecific2, IN PVOID SystemSpecific3)
{
	RTMP_ADAPTER *pAd = (RTMP_ADAPTER *) FunctionContext;

	/* Do nothing if the driver is starting halt state. */
	/* This might happen when timer already been fired before cancel timer with mlmehalt */
	if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS))
		return;

	if (MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_SCAN_TIMEOUT, 0, NULL)) {
		RTMP_MLME_HANDLER(pAd);
	} else {
		/* To prevent SyncMachine.CurrState is SCAN_LISTEN forever. */
		pAd->MlmeAux.Channel = 0;
		ScanNextChannel(pAd);
		if (pAd->CommonCfg.bWirelessEvent) {
			RTMPSendWirelessEvent(pAd,
					      IW_SCAN_ENQUEUE_FAIL_EVENT_FLAG,
					      pAd->MacTab.Content[BSSID_WCID].
					      Addr, BSS0, 0);
		}
	}
}

/*
	==========================================================================
	Description:
		MLME SCAN req state machine procedure
	==========================================================================
 */
VOID MlmeScanReqAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen, ScanType, BssType, BBPValue = 0;
	BOOLEAN TimerCancelled;
	ULONG Now;
	USHORT Status;
	PHEADER_802_11 pHdr80211;
	PUCHAR pOutBuffer = NULL;
	NDIS_STATUS NStatus;

	/* Check the total scan tries for one single OID command */
	/* If this is the CCX 2.0 Case, skip that! */
	if (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_START_UP)) {
		DBGPRINT(RT_DEBUG_TRACE,
			 ("SYNC - MlmeScanReqAction before Startup\n"));
		return;
	}
	/* Increase the scan retry counters. */
	pAd->StaCfg.ScanCnt++;

#ifdef RTMP_MAC_PCI
	if ((OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_PCIE_DEVICE)) &&
	    (IDLE_ON(pAd)) &&
	    (pAd->StaCfg.bRadio == TRUE) &&
	    (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_IDLE_RADIO_OFF))) {
		if (pAd->StaCfg.PSControl.field.EnableNewPS == FALSE) {
			AsicSendCommandToMcu(pAd, 0x31, PowerWakeCID, 0x00,
					     0x02);
			AsicCheckCommanOk(pAd, PowerWakeCID);
			RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_IDLE_RADIO_OFF);
			DBGPRINT(RT_DEBUG_TRACE,
				 ("PSM - Issue Wake up command \n"));
		} else {
			RT28xxPciAsicRadioOn(pAd, GUI_IDLE_POWER_SAVE);
		}
	}
#endif /* RTMP_MAC_PCI // */

	/* first check the parameter sanity */
	if (MlmeScanReqSanity(pAd,
			      Elem->Msg,
			      Elem->MsgLen,
			      &BssType, (PCHAR) Ssid, &SsidLen, &ScanType)) {

		/* Check for channel load and noise hist request */
		/* Suspend MSDU only at scan request, not the last two mentioned */
		/* Suspend MSDU transmission here */
		RTMPSuspendMsduTransmission(pAd);

		/* */
		/* To prevent data lost. */
		/* Send an NULL data with turned PSM bit on to current associated AP before SCAN progress. */
		/* And should send an NULL data with turned PSM bit off to AP, when scan progress done */
		/* */
		if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED)
		    && (INFRA_ON(pAd))) {
			NStatus = MlmeAllocateMemory(pAd, (PVOID) & pOutBuffer);
			if (NStatus == NDIS_STATUS_SUCCESS) {
				pHdr80211 = (PHEADER_802_11) pOutBuffer;
				MgtMacHeaderInit(pAd, pHdr80211,
						 SUBTYPE_NULL_FUNC, 1,
						 pAd->CommonCfg.Bssid,
						 pAd->CommonCfg.Bssid);
				pHdr80211->Duration = 0;
				pHdr80211->FC.Type = BTYPE_DATA;
				pHdr80211->FC.PwrMgmt = PWR_SAVE;

				/* Send using priority queue */
				MiniportMMRequest(pAd, 0, pOutBuffer,
						  sizeof(HEADER_802_11));
				DBGPRINT(RT_DEBUG_TRACE,
					 ("MlmeScanReqAction -- Send PSM Data frame for off channel RM\n"));
				MlmeFreeMemory(pAd, pOutBuffer);
				RTMPusecDelay(5000);
			}
		}

		NdisGetSystemUpTime(&Now);
		pAd->StaCfg.LastScanTime = Now;
		/* reset all the timers */
		RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);
		RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);

		/* record desired BSS parameters */
		pAd->MlmeAux.BssType = BssType;
		pAd->MlmeAux.ScanType = ScanType;
		pAd->MlmeAux.SsidLen = SsidLen;
		NdisZeroMemory(pAd->MlmeAux.Ssid, MAX_LEN_OF_SSID);
		NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);

		/* start from the first channel */
		pAd->MlmeAux.Channel = FirstChannel(pAd);

		/* Let BBP register at 20MHz to do scan */
		RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
		BBPValue &= (~0x18);
		RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);
		DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BBP R4 to 20MHz.l\n"));
		ScanNextChannel(pAd);
	} else {
		DBGPRINT_ERR(("SYNC - MlmeScanReqAction() sanity check fail\n"));
		pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
		Status = MLME_INVALID_FORMAT;
		MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2,
			    &Status);
	}
}

/*
	==========================================================================
	Description:
		MLME JOIN req state machine procedure
	==========================================================================
 */
VOID MlmeJoinReqAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR BBPValue = 0;
	BSS_ENTRY *pBss;
	BOOLEAN TimerCancelled;
	HEADER_802_11 Hdr80211;
	NDIS_STATUS NStatus;
	ULONG FrameLen = 0;
	PUCHAR pOutBuffer = NULL;
	PUCHAR pSupRate = NULL;
	UCHAR SupRateLen;
	PUCHAR pExtRate = NULL;
	UCHAR ExtRateLen;
	UCHAR ASupRate[] = { 0x8C, 0x12, 0x98, 0x24, 0xb0, 0x48, 0x60, 0x6C };
	UCHAR ASupRateLen = sizeof(ASupRate) / sizeof(UCHAR);
	MLME_JOIN_REQ_STRUCT *pInfo = (MLME_JOIN_REQ_STRUCT *) (Elem->Msg);

	DBGPRINT(RT_DEBUG_TRACE,
		 ("SYNC - MlmeJoinReqAction(BSS #%ld)\n", pInfo->BssIdx));

#ifdef RTMP_MAC_PCI
	if ((OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_PCIE_DEVICE)) &&
	    (IDLE_ON(pAd)) &&
	    (pAd->StaCfg.bRadio == TRUE) &&
	    (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_IDLE_RADIO_OFF))) {
		RT28xxPciAsicRadioOn(pAd, GUI_IDLE_POWER_SAVE);
	}
#endif /* RTMP_MAC_PCI // */

	/* reset all the timers */
	RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
	RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);

	pBss = &pAd->MlmeAux.SsidBssTab.BssEntry[pInfo->BssIdx];

	/* record the desired SSID & BSSID we're waiting for */
	COPY_MAC_ADDR(pAd->MlmeAux.Bssid, pBss->Bssid);

	/* If AP's SSID is not hidden, it is OK for updating ssid to MlmeAux again. */
	if (pBss->Hidden == 0) {
		RTMPZeroMemory(pAd->MlmeAux.Ssid, MAX_LEN_OF_SSID);
		NdisMoveMemory(pAd->MlmeAux.Ssid, pBss->Ssid, pBss->SsidLen);
		pAd->MlmeAux.SsidLen = pBss->SsidLen;
	}

	pAd->MlmeAux.BssType = pBss->BssType;
	pAd->MlmeAux.Channel = pBss->Channel;
	pAd->MlmeAux.CentralChannel = pBss->CentralChannel;

	/* Let BBP register at 20MHz to do scan */
	RTMP_BBP_IO_READ8_BY_REG_ID(pAd, BBP_R4, &BBPValue);
	BBPValue &= (~0x18);
	RTMP_BBP_IO_WRITE8_BY_REG_ID(pAd, BBP_R4, BBPValue);

	DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BBP R4 to 20MHz.l\n"));

	/* switch channel and waiting for beacon timer */
	AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, FALSE);
	AsicLockChannel(pAd, pAd->MlmeAux.Channel);
	RTMPSetTimer(&pAd->MlmeAux.BeaconTimer, JOIN_TIMEOUT);

	do {
		if (((pAd->CommonCfg.bIEEE80211H == 1) &&
		     (pAd->MlmeAux.Channel > 14) &&
		     RadarChannelCheck(pAd, pAd->MlmeAux.Channel))
		    ) {
			/* */
			/* We can't send any Probe request frame to meet 802.11h. */
			/* */
			if (pBss->Hidden == 0)
				break;
		}
		/* */
		/* send probe request */
		/* */
		NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);
		if (NStatus == NDIS_STATUS_SUCCESS) {
			if (pAd->MlmeAux.Channel <= 14) {
				pSupRate = pAd->CommonCfg.SupRate;
				SupRateLen = pAd->CommonCfg.SupRateLen;
				pExtRate = pAd->CommonCfg.ExtRate;
				ExtRateLen = pAd->CommonCfg.ExtRateLen;
			} else {
				/* */
				/* Overwrite Support Rate, CCK rate are not allowed */
				/* */
				pSupRate = ASupRate;
				SupRateLen = ASupRateLen;
				ExtRateLen = 0;
			}

			if (pAd->MlmeAux.BssType == BSS_INFRA)
				MgtMacHeaderInit(pAd, &Hdr80211,
						 SUBTYPE_PROBE_REQ, 0,
						 pAd->MlmeAux.Bssid,
						 pAd->MlmeAux.Bssid);
			else
				MgtMacHeaderInit(pAd, &Hdr80211,
						 SUBTYPE_PROBE_REQ, 0,
						 BROADCAST_ADDR,
						 BROADCAST_ADDR);

			MakeOutgoingFrame(pOutBuffer, &FrameLen,
					  sizeof(HEADER_802_11), &Hdr80211,
					  1, &SsidIe,
					  1, &pAd->MlmeAux.SsidLen,
					  pAd->MlmeAux.SsidLen,
					  pAd->MlmeAux.Ssid, 1, &SupRateIe, 1,
					  &SupRateLen, SupRateLen, pSupRate,
					  END_OF_ARGS);

			if (ExtRateLen) {
				ULONG Tmp;
				MakeOutgoingFrame(pOutBuffer + FrameLen, &Tmp,
						  1, &ExtRateIe,
						  1, &ExtRateLen,
						  ExtRateLen, pExtRate,
						  END_OF_ARGS);
				FrameLen += Tmp;
			}

			MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
			MlmeFreeMemory(pAd, pOutBuffer);
		}
	} while (FALSE);

	DBGPRINT(RT_DEBUG_TRACE,
		 ("SYNC - Switch to ch %d, Wait BEACON from %02x:%02x:%02x:%02x:%02x:%02x\n",
		  pBss->Channel, pBss->Bssid[0], pBss->Bssid[1], pBss->Bssid[2],
		  pBss->Bssid[3], pBss->Bssid[4], pBss->Bssid[5]));

	pAd->Mlme.SyncMachine.CurrState = JOIN_WAIT_BEACON;
}

/*
	==========================================================================
	Description:
		MLME START Request state machine procedure, starting an IBSS
	==========================================================================
 */
VOID MlmeStartReqAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen;
	BOOLEAN TimerCancelled;

	/* New for WPA security suites */
	UCHAR VarIE[MAX_VIE_LEN];	/* Total VIE length = MAX_VIE_LEN - -5 */
	NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
	LARGE_INTEGER TimeStamp;
	BOOLEAN Privacy;
	USHORT Status;

	/* Init Variable IE structure */
	pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
	pVIE->Length = 0;
	TimeStamp.u.LowPart = 0;
	TimeStamp.u.HighPart = 0;

	if (MlmeStartReqSanity
	    (pAd, Elem->Msg, Elem->MsgLen, (PCHAR) Ssid, &SsidLen)) {
		/* reset all the timers */
		RTMPCancelTimer(&pAd->MlmeAux.ScanTimer, &TimerCancelled);
		RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer, &TimerCancelled);

		/* */
		/* Start a new IBSS. All IBSS parameters are decided now.... */
		/* */
		DBGPRINT(RT_DEBUG_TRACE,
			 ("MlmeStartReqAction - Start a new IBSS. All IBSS parameters are decided now.... \n"));
		pAd->MlmeAux.BssType = BSS_ADHOC;
		NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid, SsidLen);
		pAd->MlmeAux.SsidLen = SsidLen;

		/* generate a radom number as BSSID */
		MacAddrRandomBssid(pAd, pAd->MlmeAux.Bssid);
		DBGPRINT(RT_DEBUG_TRACE,
			 ("MlmeStartReqAction - generate a radom number as BSSID \n"));

		Privacy =
		    (pAd->StaCfg.WepStatus == Ndis802_11Encryption1Enabled)
		    || (pAd->StaCfg.WepStatus == Ndis802_11Encryption2Enabled)
		    || (pAd->StaCfg.WepStatus == Ndis802_11Encryption3Enabled);
		pAd->MlmeAux.CapabilityInfo =
		    CAP_GENERATE(0, 1, Privacy,
				 (pAd->CommonCfg.TxPreamble ==
				  Rt802_11PreambleShort), 1, 0);
		pAd->MlmeAux.BeaconPeriod = pAd->CommonCfg.BeaconPeriod;
		pAd->MlmeAux.AtimWin = pAd->StaCfg.AtimWin;
		pAd->MlmeAux.Channel = pAd->CommonCfg.Channel;

		pAd->CommonCfg.CentralChannel = pAd->CommonCfg.Channel;
		pAd->MlmeAux.CentralChannel = pAd->CommonCfg.CentralChannel;

		pAd->MlmeAux.SupRateLen = pAd->CommonCfg.SupRateLen;
		NdisMoveMemory(pAd->MlmeAux.SupRate, pAd->CommonCfg.SupRate,
			       MAX_LEN_OF_SUPPORTED_RATES);
		RTMPCheckRates(pAd, pAd->MlmeAux.SupRate,
			       &pAd->MlmeAux.SupRateLen);
		pAd->MlmeAux.ExtRateLen = pAd->CommonCfg.ExtRateLen;
		NdisMoveMemory(pAd->MlmeAux.ExtRate, pAd->CommonCfg.ExtRate,
			       MAX_LEN_OF_SUPPORTED_RATES);
		RTMPCheckRates(pAd, pAd->MlmeAux.ExtRate,
			       &pAd->MlmeAux.ExtRateLen);

		if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED) {
			RTMPUpdateHTIE(&pAd->CommonCfg.DesiredHtPhy,
				       &pAd->StaCfg.DesiredHtPhyInfo.MCSSet[0],
				       &pAd->MlmeAux.HtCapability,
				       &pAd->MlmeAux.AddHtInfo);
			pAd->MlmeAux.HtCapabilityLen = sizeof(HT_CAPABILITY_IE);
			/* Not turn pAd->StaActive.SupportedHtPhy.bHtEnable = TRUE here. */
			DBGPRINT(RT_DEBUG_TRACE,
				 ("SYNC -pAd->StaActive.SupportedHtPhy.bHtEnable = TRUE\n"));
		} else {
			pAd->MlmeAux.HtCapabilityLen = 0;
			pAd->StaActive.SupportedPhyInfo.bHtEnable = FALSE;
			NdisZeroMemory(&pAd->StaActive.SupportedPhyInfo.
				       MCSSet[0], 16);
		}
		/* temporarily not support QOS in IBSS */
		NdisZeroMemory(&pAd->MlmeAux.APEdcaParm, sizeof(EDCA_PARM));
		NdisZeroMemory(&pAd->MlmeAux.APQbssLoad,
			       sizeof(QBSS_LOAD_PARM));
		NdisZeroMemory(&pAd->MlmeAux.APQosCapability,
			       sizeof(QOS_CAPABILITY_PARM));

		AsicSwitchChannel(pAd, pAd->MlmeAux.Channel, FALSE);
		AsicLockChannel(pAd, pAd->MlmeAux.Channel);

		DBGPRINT(RT_DEBUG_TRACE,
			 ("SYNC - MlmeStartReqAction(ch= %d,sup rates= %d, ext rates=%d)\n",
			  pAd->MlmeAux.Channel, pAd->MlmeAux.SupRateLen,
			  pAd->MlmeAux.ExtRateLen));

		pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
		Status = MLME_SUCCESS;
		MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2,
			    &Status);
	} else {
		DBGPRINT_ERR(("SYNC - MlmeStartReqAction() sanity check fail.\n"));
		pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
		Status = MLME_INVALID_FORMAT;
		MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2,
			    &Status);
	}
}

/*
	==========================================================================
	Description:
		peer sends beacon back when scanning
	==========================================================================
 */
VOID PeerBeaconAtScanAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
	UCHAR Ssid[MAX_LEN_OF_SSID], BssType, Channel, NewChannel,
	    SsidLen, DtimCount, DtimPeriod, BcastFlag, MessageToMe;
	CF_PARM CfParm;
	USHORT BeaconPeriod, AtimWin, CapabilityInfo;
	PFRAME_802_11 pFrame;
	LARGE_INTEGER TimeStamp;
	UCHAR Erp;
	UCHAR SupRate[MAX_LEN_OF_SUPPORTED_RATES],
	    ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
	UCHAR SupRateLen, ExtRateLen;
	USHORT LenVIE;
	UCHAR CkipFlag;
	UCHAR AironetCellPowerLimit;
	EDCA_PARM EdcaParm;
	QBSS_LOAD_PARM QbssLoad;
	QOS_CAPABILITY_PARM QosCapability;
	ULONG RalinkIe;
	UCHAR VarIE[MAX_VIE_LEN];	/* Total VIE length = MAX_VIE_LEN - -5 */
	NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
	HT_CAPABILITY_IE HtCapability;
	ADD_HT_INFO_IE AddHtInfo;	/* AP might use this additional ht info IE */
	UCHAR HtCapabilityLen = 0, PreNHtCapabilityLen = 0;
	UCHAR AddHtInfoLen;
	UCHAR NewExtChannelOffset = 0xff;

	/* NdisFillMemory(Ssid, MAX_LEN_OF_SSID, 0x00); */
	pFrame = (PFRAME_802_11) Elem->Msg;
	/* Init Variable IE structure */
	pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
	pVIE->Length = 0;

	RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
	RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));

	if (PeerBeaconAndProbeRspSanity(pAd,
					Elem->Msg,
					Elem->MsgLen,
					Elem->Channel,
					Addr2,
					Bssid,
					(PCHAR) Ssid,
					&SsidLen,
					&BssType,
					&BeaconPeriod,
					&Channel,
					&NewChannel,
					&TimeStamp,
					&CfParm,
					&AtimWin,
					&CapabilityInfo,
					&Erp,
					&DtimCount,
					&DtimPeriod,
					&BcastFlag,
					&MessageToMe,
					SupRate,
					&SupRateLen,
					ExtRate,
					&ExtRateLen,
					&CkipFlag,
					&AironetCellPowerLimit,
					&EdcaParm,
					&QbssLoad,
					&QosCapability,
					&RalinkIe,
					&HtCapabilityLen,
					&PreNHtCapabilityLen,
					&HtCapability,
					&AddHtInfoLen,
					&AddHtInfo,
					&NewExtChannelOffset, &LenVIE, pVIE)) {
		ULONG Idx;
		CHAR Rssi = 0;

		Idx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
		if (Idx != BSS_NOT_FOUND)
			Rssi = pAd->ScanTab.BssEntry[Idx].Rssi;

		Rssi =
		    RTMPMaxRssi(pAd, ConvertToRssi(pAd, Elem->Rssi0, RSSI_0),
				ConvertToRssi(pAd, Elem->Rssi1, RSSI_1),
				ConvertToRssi(pAd, Elem->Rssi2, RSSI_2));

		if ((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
			HtCapabilityLen = SIZE_HT_CAP_IE;

		Idx =
		    BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, (PCHAR) Ssid,
				     SsidLen, BssType, BeaconPeriod, &CfParm,
				     AtimWin, CapabilityInfo, SupRate,
				     SupRateLen, ExtRate, ExtRateLen,
				     &HtCapability, &AddHtInfo, HtCapabilityLen,
				     AddHtInfoLen, NewExtChannelOffset, Channel,
				     Rssi, TimeStamp, CkipFlag, &EdcaParm,
				     &QosCapability, &QbssLoad, LenVIE, pVIE);

		if (Idx != BSS_NOT_FOUND) {
			NdisMoveMemory(pAd->ScanTab.BssEntry[Idx].PTSF,
				       &Elem->Msg[24], 4);
			NdisMoveMemory(&pAd->ScanTab.BssEntry[Idx].TTSF[0],
				       &Elem->TimeStamp.u.LowPart, 4);
			NdisMoveMemory(&pAd->ScanTab.BssEntry[Idx].TTSF[4],
				       &Elem->TimeStamp.u.LowPart, 4);
		}

	}
	/* sanity check fail, ignored */
}

/*
	==========================================================================
	Description:
		When waiting joining the (I)BSS, beacon received from external
	==========================================================================
 */
VOID PeerBeaconAtJoinAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
	UCHAR Ssid[MAX_LEN_OF_SSID], SsidLen, BssType, Channel, MessageToMe,
	    DtimCount, DtimPeriod, BcastFlag, NewChannel;
	LARGE_INTEGER TimeStamp;
	USHORT BeaconPeriod, AtimWin, CapabilityInfo;
	CF_PARM Cf;
	BOOLEAN TimerCancelled;
	UCHAR Erp;
	UCHAR SupRate[MAX_LEN_OF_SUPPORTED_RATES],
	    ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
	UCHAR SupRateLen, ExtRateLen;
	UCHAR CkipFlag;
	USHORT LenVIE;
	UCHAR AironetCellPowerLimit;
	EDCA_PARM EdcaParm;
	QBSS_LOAD_PARM QbssLoad;
	QOS_CAPABILITY_PARM QosCapability;
	USHORT Status;
	UCHAR VarIE[MAX_VIE_LEN];	/* Total VIE length = MAX_VIE_LEN - -5 */
	NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
	ULONG RalinkIe;
	ULONG Idx;
	HT_CAPABILITY_IE HtCapability;
	ADD_HT_INFO_IE AddHtInfo;	/* AP might use this additional ht info IE */
	UCHAR HtCapabilityLen = 0, PreNHtCapabilityLen = 0;
	UCHAR AddHtInfoLen;
	UCHAR NewExtChannelOffset = 0xff;
	UCHAR CentralChannel;
	BOOLEAN bAllowNrate = FALSE;

	/* Init Variable IE structure */
	pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
	pVIE->Length = 0;
	RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
	RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));

	if (PeerBeaconAndProbeRspSanity(pAd,
					Elem->Msg,
					Elem->MsgLen,
					Elem->Channel,
					Addr2,
					Bssid,
					(PCHAR) Ssid,
					&SsidLen,
					&BssType,
					&BeaconPeriod,
					&Channel,
					&NewChannel,
					&TimeStamp,
					&Cf,
					&AtimWin,
					&CapabilityInfo,
					&Erp,
					&DtimCount,
					&DtimPeriod,
					&BcastFlag,
					&MessageToMe,
					SupRate,
					&SupRateLen,
					ExtRate,
					&ExtRateLen,
					&CkipFlag,
					&AironetCellPowerLimit,
					&EdcaParm,
					&QbssLoad,
					&QosCapability,
					&RalinkIe,
					&HtCapabilityLen,
					&PreNHtCapabilityLen,
					&HtCapability,
					&AddHtInfoLen,
					&AddHtInfo,
					&NewExtChannelOffset, &LenVIE, pVIE)) {
		/* Disqualify 11b only adhoc when we are in 11g only adhoc mode */
		if ((BssType == BSS_ADHOC)
		    && (pAd->CommonCfg.PhyMode == PHY_11G)
		    && ((SupRateLen + ExtRateLen) < 12))
			return;

		/* BEACON from desired BSS/IBSS found. We should be able to decide most */
		/* BSS parameters here. */
		/* Q. But what happen if this JOIN doesn't conclude a successful ASSOCIATEION? */
		/*    Do we need to receover back all parameters belonging to previous BSS? */
		/* A. Should be not. There's no back-door recover to previous AP. It still need */
		/*    a new JOIN-AUTH-ASSOC sequence. */
		if (MAC_ADDR_EQUAL(pAd->MlmeAux.Bssid, Bssid)) {
			DBGPRINT(RT_DEBUG_TRACE,
				 ("SYNC - receive desired BEACON at JoinWaitBeacon... Channel = %d\n",
				  Channel));
			RTMPCancelTimer(&pAd->MlmeAux.BeaconTimer,
					&TimerCancelled);

			/* Update RSSI to prevent No signal display when cards first initialized */
			pAd->StaCfg.RssiSample.LastRssi0 =
			    ConvertToRssi(pAd, Elem->Rssi0, RSSI_0);
			pAd->StaCfg.RssiSample.LastRssi1 =
			    ConvertToRssi(pAd, Elem->Rssi1, RSSI_1);
			pAd->StaCfg.RssiSample.LastRssi2 =
			    ConvertToRssi(pAd, Elem->Rssi2, RSSI_2);
			pAd->StaCfg.RssiSample.AvgRssi0 =
			    pAd->StaCfg.RssiSample.LastRssi0;
			pAd->StaCfg.RssiSample.AvgRssi0X8 =
			    pAd->StaCfg.RssiSample.AvgRssi0 << 3;
			pAd->StaCfg.RssiSample.AvgRssi1 =
			    pAd->StaCfg.RssiSample.LastRssi1;
			pAd->StaCfg.RssiSample.AvgRssi1X8 =
			    pAd->StaCfg.RssiSample.AvgRssi1 << 3;
			pAd->StaCfg.RssiSample.AvgRssi2 =
			    pAd->StaCfg.RssiSample.LastRssi2;
			pAd->StaCfg.RssiSample.AvgRssi2X8 =
			    pAd->StaCfg.RssiSample.AvgRssi2 << 3;

			/* */
			/* We need to check if SSID only set to any, then we can record the current SSID. */
			/* Otherwise will cause hidden SSID association failed. */
			/* */
			if (pAd->MlmeAux.SsidLen == 0) {
				NdisMoveMemory(pAd->MlmeAux.Ssid, Ssid,
					       SsidLen);
				pAd->MlmeAux.SsidLen = SsidLen;
			} else {
				Idx =
				    BssSsidTableSearch(&pAd->ScanTab, Bssid,
						       pAd->MlmeAux.Ssid,
						       pAd->MlmeAux.SsidLen,
						       Channel);

				if (Idx == BSS_NOT_FOUND) {
					CHAR Rssi = 0;
					Rssi =
					    RTMPMaxRssi(pAd,
							ConvertToRssi(pAd,
								      Elem->
								      Rssi0,
								      RSSI_0),
							ConvertToRssi(pAd,
								      Elem->
								      Rssi1,
								      RSSI_1),
							ConvertToRssi(pAd,
								      Elem->
								      Rssi2,
								      RSSI_2));
					Idx =
					    BssTableSetEntry(pAd, &pAd->ScanTab,
							     Bssid,
							     (CHAR *) Ssid,
							     SsidLen, BssType,
							     BeaconPeriod, &Cf,
							     AtimWin,
							     CapabilityInfo,
							     SupRate,
							     SupRateLen,
							     ExtRate,
							     ExtRateLen,
							     &HtCapability,
							     &AddHtInfo,
							     HtCapabilityLen,
							     AddHtInfoLen,
							     NewExtChannelOffset,
							     Channel, Rssi,
							     TimeStamp,
							     CkipFlag,
							     &EdcaParm,
							     &QosCapability,
							     &QbssLoad, LenVIE,
							     pVIE);
					if (Idx != BSS_NOT_FOUND) {
						NdisMoveMemory(pAd->ScanTab.
							       BssEntry[Idx].
							       PTSF,
							       &Elem->Msg[24],
							       4);
						NdisMoveMemory(&pAd->ScanTab.
							       BssEntry[Idx].
							       TTSF[0],
							       &Elem->TimeStamp.
							       u.LowPart, 4);
						NdisMoveMemory(&pAd->ScanTab.
							       BssEntry[Idx].
							       TTSF[4],
							       &Elem->TimeStamp.
							       u.LowPart, 4);
						CapabilityInfo =
						    pAd->ScanTab.BssEntry[Idx].
						    CapabilityInfo;
					}
				} else {
					/* */
					/* Multiple SSID case, used correct CapabilityInfo */
					/* */
					CapabilityInfo =
					    pAd->ScanTab.BssEntry[Idx].
					    CapabilityInfo;
				}
			}
			NdisMoveMemory(pAd->MlmeAux.Bssid, Bssid, MAC_ADDR_LEN);
			pAd->MlmeAux.CapabilityInfo =
			    CapabilityInfo & SUPPORTED_CAPABILITY_INFO;
			pAd->MlmeAux.BssType = BssType;
			pAd->MlmeAux.BeaconPeriod = BeaconPeriod;
			pAd->MlmeAux.Channel = Channel;
			pAd->MlmeAux.AtimWin = AtimWin;
			pAd->MlmeAux.CfpPeriod = Cf.CfpPeriod;
			pAd->MlmeAux.CfpMaxDuration = Cf.CfpMaxDuration;
			pAd->MlmeAux.APRalinkIe = RalinkIe;

			/* Copy AP's supported rate to MlmeAux for creating assoication request */
			/* Also filter out not supported rate */
			pAd->MlmeAux.SupRateLen = SupRateLen;
			NdisMoveMemory(pAd->MlmeAux.SupRate, SupRate,
				       SupRateLen);
			RTMPCheckRates(pAd, pAd->MlmeAux.SupRate,
				       &pAd->MlmeAux.SupRateLen);
			pAd->MlmeAux.ExtRateLen = ExtRateLen;
			NdisMoveMemory(pAd->MlmeAux.ExtRate, ExtRate,
				       ExtRateLen);
			RTMPCheckRates(pAd, pAd->MlmeAux.ExtRate,
				       &pAd->MlmeAux.ExtRateLen);

			NdisZeroMemory(pAd->StaActive.SupportedPhyInfo.MCSSet,
				       16);

			if (((pAd->StaCfg.WepStatus != Ndis802_11WEPEnabled)
			     && (pAd->StaCfg.WepStatus !=
				 Ndis802_11Encryption2Enabled))
			    || (pAd->CommonCfg.HT_DisallowTKIP == FALSE)) {
				bAllowNrate = TRUE;
			}

			pAd->MlmeAux.NewExtChannelOffset = NewExtChannelOffset;
			pAd->MlmeAux.HtCapabilityLen = HtCapabilityLen;

			RTMPZeroMemory(&pAd->MlmeAux.HtCapability,
				       SIZE_HT_CAP_IE);
			/* filter out un-supported ht rates */
			if (((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
			    && ((pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
				&& (bAllowNrate))) {
				RTMPMoveMemory(&pAd->MlmeAux.AddHtInfo,
					       &AddHtInfo, SIZE_ADD_HT_INFO_IE);

				/* StaActive.SupportedHtPhy.MCSSet stores Peer AP's 11n Rx capability */
				NdisMoveMemory(pAd->StaActive.SupportedPhyInfo.
					       MCSSet, HtCapability.MCSSet, 16);
				pAd->MlmeAux.NewExtChannelOffset =
				    NewExtChannelOffset;
				pAd->MlmeAux.HtCapabilityLen = SIZE_HT_CAP_IE;
				pAd->StaActive.SupportedPhyInfo.bHtEnable =
				    TRUE;
				if (PreNHtCapabilityLen > 0)
					pAd->StaActive.SupportedPhyInfo.
					    bPreNHt = TRUE;
				RTMPCheckHt(pAd, BSSID_WCID, &HtCapability,
					    &AddHtInfo);
				/* Copy AP Parameter to StaActive.  This is also in LinkUp. */
				DBGPRINT(RT_DEBUG_TRACE,
					 ("PeerBeaconAtJoinAction! (MpduDensity=%d, MaxRAmpduFactor=%d, BW=%d)\n",
					  pAd->StaActive.SupportedHtPhy.
					  MpduDensity,
					  pAd->StaActive.SupportedHtPhy.
					  MaxRAmpduFactor,
					  HtCapability.HtCapInfo.ChannelWidth));

				if (AddHtInfoLen > 0) {
					CentralChannel = AddHtInfo.ControlChan;
					/* Check again the Bandwidth capability of this AP. */
					if ((AddHtInfo.ControlChan > 2)
					    && (AddHtInfo.AddHtInfo.
						ExtChanOffset == EXTCHA_BELOW)
					    && (HtCapability.HtCapInfo.
						ChannelWidth == BW_40)) {
						CentralChannel =
						    AddHtInfo.ControlChan - 2;
					} else
					    if ((AddHtInfo.AddHtInfo.
						 ExtChanOffset == EXTCHA_ABOVE)
						&& (HtCapability.HtCapInfo.
						    ChannelWidth == BW_40)) {
						CentralChannel =
						    AddHtInfo.ControlChan + 2;
					}
					/* Check Error . */
					if (pAd->MlmeAux.CentralChannel !=
					    CentralChannel)
						DBGPRINT(RT_DEBUG_ERROR,
							 ("PeerBeaconAtJoinAction HT===>Beacon Central Channel = %d, Control Channel = %d. Mlmeaux CentralChannel = %d\n",
							  CentralChannel,
							  AddHtInfo.ControlChan,
							  pAd->MlmeAux.
							  CentralChannel));

					DBGPRINT(RT_DEBUG_TRACE,
						 ("PeerBeaconAtJoinAction HT===>Central Channel = %d, Control Channel = %d,  .\n",
						  CentralChannel,
						  AddHtInfo.ControlChan));

				}

			} else {
				/* To prevent error, let legacy AP must have same CentralChannel and Channel. */
				if ((HtCapabilityLen == 0)
				    && (PreNHtCapabilityLen == 0))
					pAd->MlmeAux.CentralChannel =
					    pAd->MlmeAux.Channel;

				pAd->StaActive.SupportedPhyInfo.bHtEnable =
				    FALSE;
				pAd->MlmeAux.NewExtChannelOffset = 0xff;
				RTMPZeroMemory(&pAd->MlmeAux.HtCapability,
					       SIZE_HT_CAP_IE);
				pAd->MlmeAux.HtCapabilityLen = 0;
				RTMPZeroMemory(&pAd->MlmeAux.AddHtInfo,
					       SIZE_ADD_HT_INFO_IE);
			}

			RTMPUpdateMlmeRate(pAd);

			/* copy QOS related information */
			if ((pAd->CommonCfg.bWmmCapable)
			    || (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED)
			    ) {
				NdisMoveMemory(&pAd->MlmeAux.APEdcaParm,
					       &EdcaParm, sizeof(EDCA_PARM));
				NdisMoveMemory(&pAd->MlmeAux.APQbssLoad,
					       &QbssLoad,
					       sizeof(QBSS_LOAD_PARM));
				NdisMoveMemory(&pAd->MlmeAux.APQosCapability,
					       &QosCapability,
					       sizeof(QOS_CAPABILITY_PARM));
			} else {
				NdisZeroMemory(&pAd->MlmeAux.APEdcaParm,
					       sizeof(EDCA_PARM));
				NdisZeroMemory(&pAd->MlmeAux.APQbssLoad,
					       sizeof(QBSS_LOAD_PARM));
				NdisZeroMemory(&pAd->MlmeAux.APQosCapability,
					       sizeof(QOS_CAPABILITY_PARM));
			}

			DBGPRINT(RT_DEBUG_TRACE,
				 ("SYNC - after JOIN, SupRateLen=%d, ExtRateLen=%d\n",
				  pAd->MlmeAux.SupRateLen,
				  pAd->MlmeAux.ExtRateLen));

			if (AironetCellPowerLimit != 0xFF) {
				/*We need to change our TxPower for CCX 2.0 AP Control of Client Transmit Power */
				ChangeToCellPowerLimit(pAd,
						       AironetCellPowerLimit);
			} else	/*Used the default TX Power Percentage. */
				pAd->CommonCfg.TxPowerPercentage =
				    pAd->CommonCfg.TxPowerDefault;

			pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
			Status = MLME_SUCCESS;
			MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF,
				    2, &Status);
		}
		/* not to me BEACON, ignored */
	}
	/* sanity check fail, ignore this frame */
}

/*
	==========================================================================
	Description:
		receive BEACON from peer

	IRQL = DISPATCH_LEVEL

	==========================================================================
 */
VOID PeerBeacon(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR Bssid[MAC_ADDR_LEN], Addr2[MAC_ADDR_LEN];
	CHAR Ssid[MAX_LEN_OF_SSID];
	CF_PARM CfParm;
	UCHAR SsidLen, MessageToMe = 0, BssType, Channel, NewChannel, index = 0;
	UCHAR DtimCount = 0, DtimPeriod = 0, BcastFlag = 0;
	USHORT CapabilityInfo, AtimWin, BeaconPeriod;
	LARGE_INTEGER TimeStamp;
	USHORT TbttNumToNextWakeUp;
	UCHAR Erp;
	UCHAR SupRate[MAX_LEN_OF_SUPPORTED_RATES],
	    ExtRate[MAX_LEN_OF_SUPPORTED_RATES];
	UCHAR SupRateLen, ExtRateLen;
	UCHAR CkipFlag;
	USHORT LenVIE;
	UCHAR AironetCellPowerLimit;
	EDCA_PARM EdcaParm;
	QBSS_LOAD_PARM QbssLoad;
	QOS_CAPABILITY_PARM QosCapability;
	ULONG RalinkIe;
	/* New for WPA security suites */
	UCHAR VarIE[MAX_VIE_LEN];	/* Total VIE length = MAX_VIE_LEN - -5 */
	NDIS_802_11_VARIABLE_IEs *pVIE = NULL;
	HT_CAPABILITY_IE HtCapability;
	ADD_HT_INFO_IE AddHtInfo;	/* AP might use this additional ht info IE */
	UCHAR HtCapabilityLen, PreNHtCapabilityLen;
	UCHAR AddHtInfoLen;
	UCHAR NewExtChannelOffset = 0xff;

	if (!(INFRA_ON(pAd) || ADHOC_ON(pAd)
	    ))
		return;

	/* Init Variable IE structure */
	pVIE = (PNDIS_802_11_VARIABLE_IEs) VarIE;
	pVIE->Length = 0;
	RTMPZeroMemory(&HtCapability, sizeof(HtCapability));
	RTMPZeroMemory(&AddHtInfo, sizeof(ADD_HT_INFO_IE));

	if (PeerBeaconAndProbeRspSanity(pAd,
					Elem->Msg,
					Elem->MsgLen,
					Elem->Channel,
					Addr2,
					Bssid,
					Ssid,
					&SsidLen,
					&BssType,
					&BeaconPeriod,
					&Channel,
					&NewChannel,
					&TimeStamp,
					&CfParm,
					&AtimWin,
					&CapabilityInfo,
					&Erp,
					&DtimCount,
					&DtimPeriod,
					&BcastFlag,
					&MessageToMe,
					SupRate,
					&SupRateLen,
					ExtRate,
					&ExtRateLen,
					&CkipFlag,
					&AironetCellPowerLimit,
					&EdcaParm,
					&QbssLoad,
					&QosCapability,
					&RalinkIe,
					&HtCapabilityLen,
					&PreNHtCapabilityLen,
					&HtCapability,
					&AddHtInfoLen,
					&AddHtInfo,
					&NewExtChannelOffset, &LenVIE, pVIE)) {
		BOOLEAN is_my_bssid, is_my_ssid;
		ULONG Bssidx, Now;
		BSS_ENTRY *pBss;
		CHAR RealRssi =
		    RTMPMaxRssi(pAd, ConvertToRssi(pAd, Elem->Rssi0, RSSI_0),
				ConvertToRssi(pAd, Elem->Rssi1, RSSI_1),
				ConvertToRssi(pAd, Elem->Rssi2, RSSI_2));

		is_my_bssid =
		    MAC_ADDR_EQUAL(Bssid, pAd->CommonCfg.Bssid) ? TRUE : FALSE;
		is_my_ssid =
		    SSID_EQUAL(Ssid, SsidLen, pAd->CommonCfg.Ssid,
			       pAd->CommonCfg.SsidLen) ? TRUE : FALSE;

		/* ignore BEACON not for my SSID */
		if ((!is_my_ssid) && (!is_my_bssid))
			return;

		/* It means STA waits disassoc completely from this AP, ignores this beacon. */
		if (pAd->Mlme.CntlMachine.CurrState == CNTL_WAIT_DISASSOC)
			return;

		/* Copy Control channel for this BSSID. */
		if (AddHtInfoLen != 0)
			Channel = AddHtInfo.ControlChan;

		if ((HtCapabilityLen > 0) || (PreNHtCapabilityLen > 0))
			HtCapabilityLen = SIZE_HT_CAP_IE;

		/* */
		/* Housekeeping "SsidBssTab" table for later-on ROAMing usage. */
		/* */
		Bssidx = BssTableSearch(&pAd->ScanTab, Bssid, Channel);
		if (Bssidx == BSS_NOT_FOUND) {
			/* discover new AP of this network, create BSS entry */
			Bssidx =
			    BssTableSetEntry(pAd, &pAd->ScanTab, Bssid, Ssid,
					     SsidLen, BssType, BeaconPeriod,
					     &CfParm, AtimWin, CapabilityInfo,
					     SupRate, SupRateLen, ExtRate,
					     ExtRateLen, &HtCapability,
					     &AddHtInfo, HtCapabilityLen,
					     AddHtInfoLen, NewExtChannelOffset,
					     Channel, RealRssi, TimeStamp,
					     CkipFlag, &EdcaParm,
					     &QosCapability, &QbssLoad, LenVIE,
					     pVIE);
			if (Bssidx == BSS_NOT_FOUND)	/* return if BSS table full */
				return;

			NdisMoveMemory(pAd->ScanTab.BssEntry[Bssidx].PTSF,
				       &Elem->Msg[24], 4);
			NdisMoveMemory(&pAd->ScanTab.BssEntry[Bssidx].TTSF[0],
				       &Elem->TimeStamp.u.LowPart, 4);
			NdisMoveMemory(&pAd->ScanTab.BssEntry[Bssidx].TTSF[4],
				       &Elem->TimeStamp.u.LowPart, 4);

		}

		if ((pAd->CommonCfg.bIEEE80211H == 1) && (NewChannel != 0)
		    && (Channel != NewChannel)) {
			/* Switching to channel 1 can prevent from rescanning the current channel immediately (by auto reconnection). */
			/* In addition, clear the MLME queue and the scan table to discard the RX packets and previous scanning results. */
			AsicSwitchChannel(pAd, 1, FALSE);
			AsicLockChannel(pAd, 1);
			LinkDown(pAd, FALSE);
			MlmeQueueInit(&pAd->Mlme.Queue);
			BssTableInit(&pAd->ScanTab);
			RTMPusecDelay(1000000);	/* use delay to prevent STA do reassoc */

			/* channel sanity check */
			for (index = 0; index < pAd->ChannelListNum; index++) {
				if (pAd->ChannelList[index].Channel ==
				    NewChannel) {
					pAd->ScanTab.BssEntry[Bssidx].Channel =
					    NewChannel;
					pAd->CommonCfg.Channel = NewChannel;
					AsicSwitchChannel(pAd,
							  pAd->CommonCfg.
							  Channel, FALSE);
					AsicLockChannel(pAd,
							pAd->CommonCfg.Channel);
					DBGPRINT(RT_DEBUG_TRACE,
						 ("PeerBeacon - STA receive channel switch announcement IE (New Channel =%d)\n",
						  NewChannel));
					break;
				}
			}

			if (index >= pAd->ChannelListNum) {
				DBGPRINT_ERR(("PeerBeacon(can not find New Channel=%d in ChannelList[%d]\n", pAd->CommonCfg.Channel, pAd->ChannelListNum));
			}
		}
		/* if the ssid matched & bssid unmatched, we should select the bssid with large value. */
		/* This might happened when two STA start at the same time */
		if ((!is_my_bssid) && ADHOC_ON(pAd)) {
			INT i;

			/* Add the safeguard against the mismatch of adhoc wep status */
			if (pAd->StaCfg.WepStatus !=
			    pAd->ScanTab.BssEntry[Bssidx].WepStatus) {
				return;
			}
			/* collapse into the ADHOC network which has bigger BSSID value. */
			for (i = 0; i < 6; i++) {
				if (Bssid[i] > pAd->CommonCfg.Bssid[i]) {
					DBGPRINT(RT_DEBUG_TRACE,
						 ("SYNC - merge to the IBSS with bigger BSSID=%02x:%02x:%02x:%02x:%02x:%02x\n",
						  Bssid[0], Bssid[1], Bssid[2],
						  Bssid[3], Bssid[4],
						  Bssid[5]));
					AsicDisableSync(pAd);
					COPY_MAC_ADDR(pAd->CommonCfg.Bssid,
						      Bssid);
					AsicSetBssid(pAd, pAd->CommonCfg.Bssid);
					MakeIbssBeacon(pAd);	/* re-build BEACON frame */
					AsicEnableIbssSync(pAd);	/* copy BEACON frame to on-chip memory */
					is_my_bssid = TRUE;
					break;
				} else if (Bssid[i] < pAd->CommonCfg.Bssid[i])
					break;
			}
		}

		NdisGetSystemUpTime(&Now);
		pBss = &pAd->ScanTab.BssEntry[Bssidx];
		pBss->Rssi = RealRssi;	/* lastest RSSI */
		pBss->LastBeaconRxTime = Now;	/* last RX timestamp */

		/* */
		/* BEACON from my BSSID - either IBSS or INFRA network */
		/* */
		if (is_my_bssid) {
			RXWI_STRUC RxWI;

			pAd->StaCfg.DtimCount = DtimCount;
			pAd->StaCfg.DtimPeriod = DtimPeriod;
			pAd->StaCfg.LastBeaconRxTime = Now;

			RxWI.RSSI0 = Elem->Rssi0;
			RxWI.RSSI1 = Elem->Rssi1;
			RxWI.RSSI2 = Elem->Rssi2;

			Update_Rssi_Sample(pAd, &pAd->StaCfg.RssiSample, &RxWI);
			if (AironetCellPowerLimit != 0xFF) {
				/* */
				/* We get the Cisco (ccx) "TxPower Limit" required */
				/* Changed to appropriate TxPower Limit for Ciso Compatible Extensions */
				/* */
				ChangeToCellPowerLimit(pAd,
						       AironetCellPowerLimit);
			} else {
				/* */
				/* AironetCellPowerLimit equal to 0xFF means the Cisco (ccx) "TxPower Limit" not exist. */
				/* Used the default TX Power Percentage, that set from UI. */
				/* */
				pAd->CommonCfg.TxPowerPercentage =
				    pAd->CommonCfg.TxPowerDefault;
			}

			if (ADHOC_ON(pAd) && (CAP_IS_IBSS_ON(CapabilityInfo))) {
				UCHAR MaxSupportedRateIn500Kbps = 0;
				UCHAR idx;
				MAC_TABLE_ENTRY *pEntry;

				/* supported rates array may not be sorted. sort it and find the maximum rate */
				for (idx = 0; idx < SupRateLen; idx++) {
					if (MaxSupportedRateIn500Kbps <
					    (SupRate[idx] & 0x7f))
						MaxSupportedRateIn500Kbps =
						    SupRate[idx] & 0x7f;
				}

				for (idx = 0; idx < ExtRateLen; idx++) {
					if (MaxSupportedRateIn500Kbps <
					    (ExtRate[idx] & 0x7f))
						MaxSupportedRateIn500Kbps =
						    ExtRate[idx] & 0x7f;
				}

				/* look up the existing table */
				pEntry = MacTableLookup(pAd, Addr2);

				/* Ad-hoc mode is using MAC address as BA session. So we need to continuously find newly joined adhoc station by receiving beacon. */
				/* To prevent always check this, we use wcid == RESERVED_WCID to recognize it as newly joined adhoc station. */
				if ((ADHOC_ON(pAd)
				     && (Elem->Wcid == RESERVED_WCID))
				    || (pEntry
					&&
					((pEntry->LastBeaconRxTime +
					  ADHOC_ENTRY_BEACON_LOST_TIME) <
					 Now))) {
					if (pEntry == NULL)
						/* Another adhoc joining, add to our MAC table. */
						pEntry =
						    MacTableInsertEntry(pAd,
									Addr2,
									BSS0,
									FALSE);

					if (StaAddMacTableEntry(pAd,
								pEntry,
								MaxSupportedRateIn500Kbps,
								&HtCapability,
								HtCapabilityLen,
								&AddHtInfo,
								AddHtInfoLen,
								CapabilityInfo)
					    == FALSE) {
						DBGPRINT(RT_DEBUG_TRACE,
							 ("ADHOC - Add Entry failed.\n"));
						return;
					}

					if (pEntry &&
					    (Elem->Wcid == RESERVED_WCID)) {
						idx = pAd->StaCfg.DefaultKeyId;
						RTMP_STA_SECURITY_INFO_ADD(pAd,
									   BSS0,
									   idx,
									   pEntry);
					}
				}

				if (pEntry && pEntry->ValidAsCLI)
					pEntry->LastBeaconRxTime = Now;

				/* At least another peer in this IBSS, declare MediaState as CONNECTED */
				if (!OPSTATUS_TEST_FLAG
				    (pAd, fOP_STATUS_MEDIA_STATE_CONNECTED)) {
					OPSTATUS_SET_FLAG(pAd,
							  fOP_STATUS_MEDIA_STATE_CONNECTED);

					pAd->IndicateMediaState =
					    NdisMediaStateConnected;
					RTMP_IndicateMediaState(pAd);
					pAd->ExtraInfo = GENERAL_LINK_UP;
					AsicSetBssid(pAd, pAd->CommonCfg.Bssid);

					/* 2003/03/12 - john */
					/* Make sure this entry in "ScanTab" table, thus complies to Microsoft's policy that */
					/* "site survey" result should always include the current connected network. */
					/* */
					Bssidx =
					    BssTableSearch(&pAd->ScanTab, Bssid,
							   Channel);
					if (Bssidx == BSS_NOT_FOUND) {
						Bssidx =
						    BssTableSetEntry(pAd,
								     &pAd->
								     ScanTab,
								     Bssid,
								     Ssid,
								     SsidLen,
								     BssType,
								     BeaconPeriod,
								     &CfParm,
								     AtimWin,
								     CapabilityInfo,
								     SupRate,
								     SupRateLen,
								     ExtRate,
								     ExtRateLen,
								     &HtCapability,
								     &AddHtInfo,
								     HtCapabilityLen,
								     AddHtInfoLen,
								     NewExtChannelOffset,
								     Channel,
								     RealRssi,
								     TimeStamp,
								     0,
								     &EdcaParm,
								     &QosCapability,
								     &QbssLoad,
								     LenVIE,
								     pVIE);
					}
					DBGPRINT(RT_DEBUG_TRACE,
						 ("ADHOC  fOP_STATUS_MEDIA_STATE_CONNECTED.\n"));
				}
			}

			if (INFRA_ON(pAd)) {
				BOOLEAN bUseShortSlot, bUseBGProtection;

				/* decide to use/change to - */
				/*      1. long slot (20 us) or short slot (9 us) time */
				/*      2. turn on/off RTS/CTS and/or CTS-to-self protection */
				/*      3. short preamble */

				/*bUseShortSlot = pAd->CommonCfg.bUseShortSlotTime && CAP_IS_SHORT_SLOT(CapabilityInfo); */
				bUseShortSlot =
				    CAP_IS_SHORT_SLOT(CapabilityInfo);
				if (bUseShortSlot !=
				    OPSTATUS_TEST_FLAG(pAd,
						       fOP_STATUS_SHORT_SLOT_INUSED))
					AsicSetSlotTime(pAd, bUseShortSlot);

				bUseBGProtection = (pAd->CommonCfg.UseBGProtection == 1) ||	/* always use */
				    ((pAd->CommonCfg.UseBGProtection == 0)
				     && ERP_IS_USE_PROTECTION(Erp));

				if (pAd->CommonCfg.Channel > 14)	/* always no BG protection in A-band. falsely happened when switching A/G band to a dual-band AP */
					bUseBGProtection = FALSE;

				if (bUseBGProtection !=
				    OPSTATUS_TEST_FLAG(pAd,
						       fOP_STATUS_BG_PROTECTION_INUSED))
				{
					if (bUseBGProtection) {
						OPSTATUS_SET_FLAG(pAd,
								  fOP_STATUS_BG_PROTECTION_INUSED);
						AsicUpdateProtect(pAd,
								  pAd->MlmeAux.
								  AddHtInfo.
								  AddHtInfo2.
								  OperaionMode,
								  (OFDMSETPROTECT
								   |
								   CCKSETPROTECT
								   |
								   ALLN_SETPROTECT),
								  FALSE,
								  (pAd->MlmeAux.
								   AddHtInfo.
								   AddHtInfo2.
								   NonGfPresent
								   == 1));
					} else {
						OPSTATUS_CLEAR_FLAG(pAd,
								    fOP_STATUS_BG_PROTECTION_INUSED);
						AsicUpdateProtect(pAd,
								  pAd->MlmeAux.
								  AddHtInfo.
								  AddHtInfo2.
								  OperaionMode,
								  (OFDMSETPROTECT
								   |
								   CCKSETPROTECT
								   |
								   ALLN_SETPROTECT),
								  TRUE,
								  (pAd->MlmeAux.
								   AddHtInfo.
								   AddHtInfo2.
								   NonGfPresent
								   == 1));
					}

					DBGPRINT(RT_DEBUG_WARN,
						 ("SYNC - AP changed B/G protection to %d\n",
						  bUseBGProtection));
				}
				/* check Ht protection mode. and adhere to the Non-GF device indication by AP. */
				if ((AddHtInfoLen != 0) &&
				    ((AddHtInfo.AddHtInfo2.OperaionMode !=
				      pAd->MlmeAux.AddHtInfo.AddHtInfo2.
				      OperaionMode)
				     || (AddHtInfo.AddHtInfo2.NonGfPresent !=
					 pAd->MlmeAux.AddHtInfo.AddHtInfo2.
					 NonGfPresent))) {
					pAd->MlmeAux.AddHtInfo.AddHtInfo2.
					    NonGfPresent =
					    AddHtInfo.AddHtInfo2.NonGfPresent;
					pAd->MlmeAux.AddHtInfo.AddHtInfo2.
					    OperaionMode =
					    AddHtInfo.AddHtInfo2.OperaionMode;
					if (pAd->MlmeAux.AddHtInfo.AddHtInfo2.
					    NonGfPresent == 1) {
						AsicUpdateProtect(pAd,
								  pAd->MlmeAux.
								  AddHtInfo.
								  AddHtInfo2.
								  OperaionMode,
								  ALLN_SETPROTECT,
								  FALSE, TRUE);
					} else
						AsicUpdateProtect(pAd,
								  pAd->MlmeAux.
								  AddHtInfo.
								  AddHtInfo2.
								  OperaionMode,
								  ALLN_SETPROTECT,
								  FALSE, FALSE);

					DBGPRINT(RT_DEBUG_TRACE,
						 ("SYNC - AP changed N OperaionMode to %d\n",
						  pAd->MlmeAux.AddHtInfo.
						  AddHtInfo2.OperaionMode));
				}

				if (OPSTATUS_TEST_FLAG
				    (pAd, fOP_STATUS_SHORT_PREAMBLE_INUSED)
				    && ERP_IS_USE_BARKER_PREAMBLE(Erp)) {
					MlmeSetTxPreamble(pAd,
							  Rt802_11PreambleLong);
					DBGPRINT(RT_DEBUG_TRACE,
						 ("SYNC - AP forced to use LONG preamble\n"));
				}

				if (OPSTATUS_TEST_FLAG
				    (pAd, fOP_STATUS_WMM_INUSED)
				    && (EdcaParm.bValid == TRUE)
				    && (EdcaParm.EdcaUpdateCount !=
					pAd->CommonCfg.APEdcaParm.
					EdcaUpdateCount)) {
					DBGPRINT(RT_DEBUG_TRACE,
						 ("SYNC - AP change EDCA parameters(from %d to %d)\n",
						  pAd->CommonCfg.APEdcaParm.
						  EdcaUpdateCount,
						  EdcaParm.EdcaUpdateCount));
					AsicSetEdcaParm(pAd, &EdcaParm);
				}
				/* copy QOS related information */
				NdisMoveMemory(&pAd->CommonCfg.APQbssLoad,
					       &QbssLoad,
					       sizeof(QBSS_LOAD_PARM));
				NdisMoveMemory(&pAd->CommonCfg.APQosCapability,
					       &QosCapability,
					       sizeof(QOS_CAPABILITY_PARM));
			}
			/* only INFRASTRUCTURE mode support power-saving feature */
			if ((INFRA_ON(pAd) && (pAd->StaCfg.Psm == PWR_SAVE))
			    || (pAd->CommonCfg.bAPSDForcePowerSave)) {
				UCHAR FreeNumber;
				/*  1. AP has backlogged unicast-to-me frame, stay AWAKE, send PSPOLL */
				/*  2. AP has backlogged broadcast/multicast frame and we want those frames, stay AWAKE */
				/*  3. we have outgoing frames in TxRing or MgmtRing, better stay AWAKE */
				/*  4. Psm change to PWR_SAVE, but AP not been informed yet, we better stay AWAKE */
				/*  5. otherwise, put PHY back to sleep to save battery. */
				if (MessageToMe) {
#ifdef RTMP_MAC_PCI
					if (OPSTATUS_TEST_FLAG
					    (pAd, fOP_STATUS_PCIE_DEVICE)) {
						/* Restore to correct BBP R3 value */
						if (pAd->Antenna.field.RxPath >
						    1)
							RTMP_BBP_IO_WRITE8_BY_REG_ID
							    (pAd, BBP_R3,
							     pAd->StaCfg.BBPR3);
						/* Turn clk to 80Mhz. */
					}
#endif /* RTMP_MAC_PCI // */
					if (pAd->CommonCfg.bAPSDCapable
					    && pAd->CommonCfg.APEdcaParm.
					    bAPSDCapable
					    && pAd->CommonCfg.bAPSDAC_BE
					    && pAd->CommonCfg.bAPSDAC_BK
					    && pAd->CommonCfg.bAPSDAC_VI
					    && pAd->CommonCfg.bAPSDAC_VO) {
						pAd->CommonCfg.
						    bNeedSendTriggerFrame =
						    TRUE;
					} else
						RTMP_PS_POLL_ENQUEUE(pAd);
				} else if (BcastFlag && (DtimCount == 0)
					   && OPSTATUS_TEST_FLAG(pAd,
								 fOP_STATUS_RECEIVE_DTIM))
				{
#ifdef RTMP_MAC_PCI
					if (OPSTATUS_TEST_FLAG
					    (pAd, fOP_STATUS_PCIE_DEVICE)) {
						if (pAd->Antenna.field.RxPath >
						    1)
							RTMP_BBP_IO_WRITE8_BY_REG_ID
							    (pAd, BBP_R3,
							     pAd->StaCfg.BBPR3);
					}
#endif /* RTMP_MAC_PCI // */
				} else
				    if ((pAd->TxSwQueue[QID_AC_BK].Number != 0)
					|| (pAd->TxSwQueue[QID_AC_BE].Number !=
					    0)
					|| (pAd->TxSwQueue[QID_AC_VI].Number !=
					    0)
					|| (pAd->TxSwQueue[QID_AC_VO].Number !=
					    0)
					||
					(RTMPFreeTXDRequest
					 (pAd, QID_AC_BK, TX_RING_SIZE - 1,
					  &FreeNumber) != NDIS_STATUS_SUCCESS)
					||
					(RTMPFreeTXDRequest
					 (pAd, QID_AC_BE, TX_RING_SIZE - 1,
					  &FreeNumber) != NDIS_STATUS_SUCCESS)
					||
					(RTMPFreeTXDRequest
					 (pAd, QID_AC_VI, TX_RING_SIZE - 1,
					  &FreeNumber) != NDIS_STATUS_SUCCESS)
					||
					(RTMPFreeTXDRequest
					 (pAd, QID_AC_VO, TX_RING_SIZE - 1,
					  &FreeNumber) != NDIS_STATUS_SUCCESS)
					||
					(RTMPFreeTXDRequest
					 (pAd, QID_MGMT, MGMT_RING_SIZE - 1,
					  &FreeNumber) !=
					 NDIS_STATUS_SUCCESS)) {
					/* TODO: consider scheduled HCCA. might not be proper to use traditional DTIM-based power-saving scheme */
					/* can we cheat here (i.e. just check MGMT & AC_BE) for better performance? */
#ifdef RTMP_MAC_PCI
					if (OPSTATUS_TEST_FLAG
					    (pAd, fOP_STATUS_PCIE_DEVICE)) {
						if (pAd->Antenna.field.RxPath >
						    1)
							RTMP_BBP_IO_WRITE8_BY_REG_ID
							    (pAd, BBP_R3,
							     pAd->StaCfg.BBPR3);
					}
#endif /* RTMP_MAC_PCI // */
				} else {
					if ((pAd->CommonCfg.
					     bACMAPSDTr[QID_AC_VO])
					    || (pAd->CommonCfg.
						bACMAPSDTr[QID_AC_VI])
					    || (pAd->CommonCfg.
						bACMAPSDTr[QID_AC_BK])
					    || (pAd->CommonCfg.
						bACMAPSDTr[QID_AC_BE])) {
						/*
						   WMM Spec v1.0 3.6.2.4,
						   The WMM STA shall remain awake until it receives a
						   QoS Data or Null frame addressed to it, with the
						   EOSP subfield in QoS Control field set to 1.

						   So we can not sleep here or we will suffer a case:

						   PS Management Frame -->
						   Trigger frame -->
						   Beacon (TIM=0) (Beacon is closer to Trig frame) -->
						   Station goes to sleep -->
						   AP delivery queued UAPSD packets -->
						   Station can NOT receive the reply

						   Maybe we need a timeout timer to avoid that we do
						   NOT receive the EOSP frame.

						   We can not use More Data to check if SP is ended
						   due to MaxSPLength.
						 */
					} else {
						USHORT NextDtim = DtimCount;

						if (NextDtim == 0)
							NextDtim = DtimPeriod;

						TbttNumToNextWakeUp =
						    pAd->StaCfg.
						    DefaultListenCount;
						if (OPSTATUS_TEST_FLAG
						    (pAd,
						     fOP_STATUS_RECEIVE_DTIM)
						    && (TbttNumToNextWakeUp >
							NextDtim))
							TbttNumToNextWakeUp =
							    NextDtim;

						if (!OPSTATUS_TEST_FLAG
						    (pAd, fOP_STATUS_DOZE)) {
							/* Set a flag to go to sleep . Then after parse this RxDoneInterrupt, will go to sleep mode. */
							pAd->
							    ThisTbttNumToNextWakeUp
							    =
							    TbttNumToNextWakeUp;
							AsicSleepThenAutoWakeup
							    (pAd,
							     pAd->
							     ThisTbttNumToNextWakeUp);
						}
					}
				}
			}
		}
		/* not my BSSID, ignore it */
	}
	/* sanity check fail, ignore this frame */
}

/*
	==========================================================================
	Description:
		Receive PROBE REQ from remote peer when operating in IBSS mode
	==========================================================================
 */
VOID PeerProbeReqAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	UCHAR Addr2[MAC_ADDR_LEN];
	CHAR Ssid[MAX_LEN_OF_SSID];
	UCHAR SsidLen;
	UCHAR HtLen, AddHtLen, NewExtLen;
	HEADER_802_11 ProbeRspHdr;
	NDIS_STATUS NStatus;
	PUCHAR pOutBuffer = NULL;
	ULONG FrameLen = 0;
	LARGE_INTEGER FakeTimestamp;
	UCHAR DsLen = 1, IbssLen = 2;
	UCHAR LocalErpIe[3] = { IE_ERP, 1, 0 };
	BOOLEAN Privacy;
	USHORT CapabilityInfo;
	UCHAR RSNIe = IE_WPA;

	if (!ADHOC_ON(pAd))
		return;

	if (PeerProbeReqSanity
	    (pAd, Elem->Msg, Elem->MsgLen, Addr2, Ssid, &SsidLen)) {
		if ((SsidLen == 0)
		    || SSID_EQUAL(Ssid, SsidLen, pAd->CommonCfg.Ssid,
				  pAd->CommonCfg.SsidLen)) {
			/* allocate and send out ProbeRsp frame */
			NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);	/*Get an unused nonpaged memory */
			if (NStatus != NDIS_STATUS_SUCCESS)
				return;

			/*pAd->StaCfg.AtimWin = 0;  // ?????? */

			Privacy =
			    (pAd->StaCfg.WepStatus ==
			     Ndis802_11Encryption1Enabled)
			    || (pAd->StaCfg.WepStatus ==
				Ndis802_11Encryption2Enabled)
			    || (pAd->StaCfg.WepStatus ==
				Ndis802_11Encryption3Enabled);
			CapabilityInfo =
			    CAP_GENERATE(0, 1, Privacy,
					 (pAd->CommonCfg.TxPreamble ==
					  Rt802_11PreambleShort), 0, 0);

			MakeOutgoingFrame(pOutBuffer, &FrameLen,
					  sizeof(HEADER_802_11), &ProbeRspHdr,
					  TIMESTAMP_LEN, &FakeTimestamp,
					  2, &pAd->CommonCfg.BeaconPeriod,
					  2, &CapabilityInfo,
					  1, &SsidIe,
					  1, &pAd->CommonCfg.SsidLen,
					  pAd->CommonCfg.SsidLen,
					  pAd->CommonCfg.Ssid, 1, &SupRateIe, 1,
					  &pAd->StaActive.SupRateLen,
					  pAd->StaActive.SupRateLen,
					  pAd->StaActive.SupRate, 1, &DsIe, 1,
					  &DsLen, 1, &pAd->CommonCfg.Channel, 1,
					  &IbssIe, 1, &IbssLen, 2,
					  &pAd->StaActive.AtimWin, END_OF_ARGS);

			if (pAd->StaActive.ExtRateLen) {
				ULONG tmp;
				MakeOutgoingFrame(pOutBuffer + FrameLen, &tmp,
						  3, LocalErpIe,
						  1, &ExtRateIe,
						  1, &pAd->StaActive.ExtRateLen,
						  pAd->StaActive.ExtRateLen,
						  &pAd->StaActive.ExtRate,
						  END_OF_ARGS);
				FrameLen += tmp;
			}
			/* If adhoc secruity is set for WPA-None, append the cipher suite IE */
			if (pAd->StaCfg.AuthMode == Ndis802_11AuthModeWPANone) {
				ULONG tmp;
				MakeOutgoingFrame(pOutBuffer + FrameLen, &tmp,
						  1, &RSNIe,
						  1, &pAd->StaCfg.RSNIE_Len,
						  pAd->StaCfg.RSNIE_Len,
						  pAd->StaCfg.RSN_IE,
						  END_OF_ARGS);
				FrameLen += tmp;
			}

			if (pAd->CommonCfg.PhyMode >= PHY_11ABGN_MIXED) {
				ULONG TmpLen;
				UCHAR BROADCOM[4] = { 0x0, 0x90, 0x4c, 0x33 };
				HtLen = sizeof(pAd->CommonCfg.HtCapability);
				AddHtLen = sizeof(pAd->CommonCfg.AddHTInfo);
				NewExtLen = 1;
				/*New extension channel offset IE is included in Beacon, Probe Rsp or channel Switch Announcement Frame */
				if (pAd->bBroadComHT == TRUE) {
					MakeOutgoingFrame(pOutBuffer + FrameLen,
							  &TmpLen, 1, &WpaIe, 4,
							  &BROADCOM[0],
							  pAd->MlmeAux.
							  HtCapabilityLen,
							  &pAd->MlmeAux.
							  HtCapability,
							  END_OF_ARGS);
				} else {
					MakeOutgoingFrame(pOutBuffer + FrameLen,
							  &TmpLen, 1, &HtCapIe,
							  1, &HtLen,
							  sizeof
							  (HT_CAPABILITY_IE),
							  &pAd->CommonCfg.
							  HtCapability, 1,
							  &AddHtInfoIe, 1,
							  &AddHtLen,
							  sizeof
							  (ADD_HT_INFO_IE),
							  &pAd->CommonCfg.
							  AddHTInfo, 1,
							  &NewExtChanIe, 1,
							  &NewExtLen,
							  sizeof
							  (NEW_EXT_CHAN_IE),
							  &pAd->CommonCfg.
							  NewExtChanOffset,
							  END_OF_ARGS);
				}
				FrameLen += TmpLen;
			}

			MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
			MlmeFreeMemory(pAd, pOutBuffer);
		}
	}
}

VOID BeaconTimeoutAtJoinAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	USHORT Status;
	DBGPRINT(RT_DEBUG_TRACE, ("SYNC - BeaconTimeoutAtJoinAction\n"));
	pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
	Status = MLME_REJ_TIMEOUT;
	MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
}

/*
	==========================================================================
	Description:
		Scan timeout procedure. basically add channel index by 1 and rescan
	==========================================================================
 */
VOID ScanTimeoutAction(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	pAd->MlmeAux.Channel = NextChannel(pAd, pAd->MlmeAux.Channel);

	/* Only one channel scanned for CISCO beacon request */
	if ((pAd->MlmeAux.ScanType == SCAN_CISCO_ACTIVE) ||
	    (pAd->MlmeAux.ScanType == SCAN_CISCO_PASSIVE) ||
	    (pAd->MlmeAux.ScanType == SCAN_CISCO_NOISE) ||
	    (pAd->MlmeAux.ScanType == SCAN_CISCO_CHANNEL_LOAD))
		pAd->MlmeAux.Channel = 0;

	/* this routine will stop if pAd->MlmeAux.Channel == 0 */
	ScanNextChannel(pAd);
}

/*
	==========================================================================
	Description:
	==========================================================================
 */
VOID InvalidStateWhenScan(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	USHORT Status;
	DBGPRINT(RT_DEBUG_TRACE,
		 ("AYNC - InvalidStateWhenScan(state=%ld). Reset SYNC machine\n",
		  pAd->Mlme.SyncMachine.CurrState));
	pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
	Status = MLME_STATE_MACHINE_REJECT;
	MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_SCAN_CONF, 2, &Status);
}

/*
	==========================================================================
	Description:
	==========================================================================
 */
VOID InvalidStateWhenJoin(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	USHORT Status;
	DBGPRINT(RT_DEBUG_TRACE,
		 ("InvalidStateWhenJoin(state=%ld). Reset SYNC machine\n",
		  pAd->Mlme.SyncMachine.CurrState));
	pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
	Status = MLME_STATE_MACHINE_REJECT;
	MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_JOIN_CONF, 2, &Status);
}

/*
	==========================================================================
	Description:
	==========================================================================
 */
VOID InvalidStateWhenStart(IN PRTMP_ADAPTER pAd, IN MLME_QUEUE_ELEM * Elem)
{
	USHORT Status;
	DBGPRINT(RT_DEBUG_TRACE,
		 ("InvalidStateWhenStart(state=%ld). Reset SYNC machine\n",
		  pAd->Mlme.SyncMachine.CurrState));
	pAd->Mlme.SyncMachine.CurrState = SYNC_IDLE;
	Status = MLME_STATE_MACHINE_REJECT;
	MlmeEnqueue(pAd, MLME_CNTL_STATE_MACHINE, MT2_START_CONF, 2, &Status);
}

/*
	==========================================================================
	Description:

	IRQL = DISPATCH_LEVEL

	==========================================================================
 */
VOID EnqueuePsPoll(IN PRTMP_ADAPTER pAd)
{

	if (pAd->StaCfg.WindowsPowerMode == Ndis802_11PowerModeLegacy_PSP)
		pAd->PsPollFrame.FC.PwrMgmt = PWR_SAVE;
	MiniportMMRequest(pAd, 0, (PUCHAR) & pAd->PsPollFrame,
			  sizeof(PSPOLL_FRAME));
}

/*
	==========================================================================
	Description:
	==========================================================================
 */
VOID EnqueueProbeRequest(IN PRTMP_ADAPTER pAd)
{
	NDIS_STATUS NState;
	PUCHAR pOutBuffer;
	ULONG FrameLen = 0;
	HEADER_802_11 Hdr80211;

	DBGPRINT(RT_DEBUG_TRACE, ("force out a ProbeRequest ...\n"));

	NState = MlmeAllocateMemory(pAd, &pOutBuffer);	/*Get an unused nonpaged memory */
	if (NState == NDIS_STATUS_SUCCESS) {
		MgtMacHeaderInit(pAd, &Hdr80211, SUBTYPE_PROBE_REQ, 0,
				 BROADCAST_ADDR, BROADCAST_ADDR);

		/* this ProbeRequest explicitly specify SSID to reduce unwanted ProbeResponse */
		MakeOutgoingFrame(pOutBuffer, &FrameLen,
				  sizeof(HEADER_802_11), &Hdr80211,
				  1, &SsidIe,
				  1, &pAd->CommonCfg.SsidLen,
				  pAd->CommonCfg.SsidLen, pAd->CommonCfg.Ssid,
				  1, &SupRateIe,
				  1, &pAd->StaActive.SupRateLen,
				  pAd->StaActive.SupRateLen,
				  pAd->StaActive.SupRate, END_OF_ARGS);
		MiniportMMRequest(pAd, 0, pOutBuffer, FrameLen);
		MlmeFreeMemory(pAd, pOutBuffer);
	}

}

BOOLEAN ScanRunning(IN PRTMP_ADAPTER pAd)
{
	return (pAd->Mlme.SyncMachine.CurrState == SCAN_LISTEN) ? TRUE : FALSE;
}