mlme.c

ralink 2870 usb无线网卡 最新驱动

			{
				if (pAd->CommonCfg.TxStream == 1)
				{
					*ppTable = RateSwitchTable11N1S;
					*pTableSize = RateSwitchTable11N1S[0];
					*pInitTxRateIdx = RateSwitchTable11N1S[1];
					DBGPRINT_RAW(RT_DEBUG_ERROR,("DRS: unkown mode,default use 11N 1S AP \n"));
				}
				else
				{
					*ppTable = RateSwitchTable11N2SForABand;
					*pTableSize = RateSwitchTable11N2SForABand[0];
					*pInitTxRateIdx = RateSwitchTable11N2SForABand[1];
					DBGPRINT_RAW(RT_DEBUG_ERROR,("DRS: unkown mode,default use 11N 2S AP \n"));					
				}
			}
#endif // DOT11_N_SUPPORT //
			DBGPRINT_RAW(RT_DEBUG_ERROR,("DRS: unkown mode (SupRateLen=%d, ExtRateLen=%d, MCSSet[0]=0x%x, MCSSet[1]=0x%x)\n",
				pAd->StaActive.SupRateLen, pAd->StaActive.ExtRateLen, pAd->StaActive.SupportedPhyInfo.MCSSet[0], pAd->StaActive.SupportedPhyInfo.MCSSet[1]));
		}
#endif // CONFIG_STA_SUPPORT //
	} while(FALSE);
}


#ifdef CONFIG_STA_SUPPORT
VOID STAMlmePeriodicExec(
	PRTMP_ADAPTER pAd)
{
	ULONG			    TxTotalCnt;
	int 	i;

//
// We return here in ATE mode, because the statistics 
// that ATE needs are not collected via this routine.
//
#ifdef RALINK_ATE
	// It is supposed that we will never reach here in ATE mode.
	ASSERT(!(ATE_ON(pAd)));
	if (ATE_ON(pAd))
		return;
#endif // RALINK_ATE //

#ifdef WPA_SUPPLICANT_SUPPORT
    if (pAd->StaCfg.WpaSupplicantUP == WPA_SUPPLICANT_DISABLE)    
#endif // WPA_SUPPLICANT_SUPPORT //        
    {
    	// WPA MIC error should block association attempt for 60 seconds
		if (pAd->StaCfg.bBlockAssoc && 
			RTMP_TIME_AFTER(pAd->Mlme.Now32, pAd->StaCfg.LastMicErrorTime + (60*OS_HZ)))
    		pAd->StaCfg.bBlockAssoc = FALSE;
    }

    if ((pAd->PreMediaState != pAd->IndicateMediaState) && (pAd->CommonCfg.bWirelessEvent))
	{
		if (pAd->IndicateMediaState == NdisMediaStateConnected)
		{
			RTMPSendWirelessEvent(pAd, IW_STA_LINKUP_EVENT_FLAG, pAd->MacTab.Content[BSSID_WCID].Addr, BSS0, 0); 
		}
		pAd->PreMediaState = pAd->IndicateMediaState;  
	}


	

	if (pAd->CommonCfg.PSPXlink && ADHOC_ON(pAd))
	{
	}
	else
	{
    	AsicStaBbpTuning(pAd);
	}

	TxTotalCnt = pAd->RalinkCounters.OneSecTxNoRetryOkCount + 
					 pAd->RalinkCounters.OneSecTxRetryOkCount + 
					 pAd->RalinkCounters.OneSecTxFailCount;

	if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED)) 
	{
		// update channel quality for Roaming and UI LinkQuality display
		MlmeCalculateChannelQuality(pAd, pAd->Mlme.Now32);
	}

	// must be AFTER MlmeDynamicTxRateSwitching() because it needs to know if
	// Radio is currently in noisy environment
	if (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_BSS_SCAN_IN_PROGRESS)) 
	AsicAdjustTxPower(pAd);

	if (INFRA_ON(pAd))
	{
#ifdef QOS_DLS_SUPPORT
		// Check DLS time out, then tear down those session
		RTMPCheckDLSTimeOut(pAd);
#endif // QOS_DLS_SUPPORT //

		// Is PSM bit consistent with user power management policy?
		// This is the only place that will set PSM bit ON.
		if (!OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
		MlmeCheckPsmChange(pAd, pAd->Mlme.Now32);

		pAd->RalinkCounters.LastOneSecTotalTxCount = TxTotalCnt;

		if ((RTMP_TIME_AFTER(pAd->Mlme.Now32, pAd->StaCfg.LastBeaconRxTime + (1*OS_HZ))) &&
			(!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_BSS_SCAN_IN_PROGRESS)) &&
			(((TxTotalCnt + pAd->RalinkCounters.OneSecRxOkCnt) < 600)))
		{
			RTMPSetAGCInitValue(pAd, BW_20);
			DBGPRINT(RT_DEBUG_TRACE, ("MMCHK - No BEACON. restore R66 to the low bound(%d) \n", (0x2E + GET_LNA_GAIN(pAd))));
		}

        //if ((pAd->RalinkCounters.OneSecTxNoRetryOkCount == 0) &&
        //    (pAd->RalinkCounters.OneSecTxRetryOkCount == 0))
        {
    		if (pAd->CommonCfg.bAPSDCapable && pAd->CommonCfg.APEdcaParm.bAPSDCapable)
    		{
    		    // When APSD is enabled, the period changes as 20 sec
    			if ((pAd->Mlme.OneSecPeriodicRound % 20) == 8)
    				RTMPSendNullFrame(pAd, pAd->CommonCfg.TxRate, TRUE);
    		}
    		else
    		{
    		    // Send out a NULL frame every 10 sec to inform AP that STA is still alive (Avoid being age out)
    			if ((pAd->Mlme.OneSecPeriodicRound % 10) == 8)
                {         
                    if (pAd->CommonCfg.bWmmCapable)
    					RTMPSendNullFrame(pAd, pAd->CommonCfg.TxRate, TRUE);
                    else
						RTMPSendNullFrame(pAd, pAd->CommonCfg.TxRate, FALSE);
                }
    		}
        }

		if (CQI_IS_DEAD(pAd->Mlme.ChannelQuality))
			{
			DBGPRINT(RT_DEBUG_TRACE, ("MMCHK - No BEACON. Dead CQI. Auto Recovery attempt #%ld\n", pAd->RalinkCounters.BadCQIAutoRecoveryCount));

			// Lost AP, send disconnect & link down event
			LinkDown(pAd, FALSE);
			
#ifdef WPA_SUPPLICANT_SUPPORT
#ifndef NATIVE_WPA_SUPPLICANT_SUPPORT
		//send disassociate event to wpa_supplicant
		if (pAd->StaCfg.WpaSupplicantUP) {
			RtmpOSWrielessEventSend(pAd, IWEVCUSTOM, RT_DISASSOC_EVENT_FLAG, NULL, NULL, 0);
		} 
#endif // NATIVE_WPA_SUPPLICANT_SUPPORT //
#endif // WPA_SUPPLICANT_SUPPORT //
			
#ifdef NATIVE_WPA_SUPPLICANT_SUPPORT
		RtmpOSWrielessEventSend(pAd, SIOCGIWAP, -1, NULL, NULL, 0);
#endif // NATIVE_WPA_SUPPLICANT_SUPPORT //        
			
			// RTMPPatchMacBbpBug(pAd);
			MlmeAutoReconnectLastSSID(pAd);
		}
		else if (CQI_IS_BAD(pAd->Mlme.ChannelQuality))
		{
			pAd->RalinkCounters.BadCQIAutoRecoveryCount ++;
			DBGPRINT(RT_DEBUG_TRACE, ("MMCHK - Bad CQI. Auto Recovery attempt #%ld\n", pAd->RalinkCounters.BadCQIAutoRecoveryCount));
			MlmeAutoReconnectLastSSID(pAd);
		}
		
		if (pAd->StaCfg.bAutoRoaming)
		{
			BOOLEAN	rv = FALSE;
			CHAR	dBmToRoam = pAd->StaCfg.dBmToRoam;
			CHAR 	MaxRssi = RTMPMaxRssi(pAd, 
										  pAd->StaCfg.RssiSample.LastRssi0, 
										  pAd->StaCfg.RssiSample.LastRssi1, 
										  pAd->StaCfg.RssiSample.LastRssi2);			
			
			// Scanning, ignore Roaming
			if (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_BSS_SCAN_IN_PROGRESS) &&
				(pAd->Mlme.SyncMachine.CurrState == SYNC_IDLE) &&
				(MaxRssi <= dBmToRoam))
			{
				DBGPRINT(RT_DEBUG_TRACE, ("Rssi=%d, dBmToRoam=%d\n", MaxRssi, (CHAR)dBmToRoam));


				// Add auto seamless roaming
				if (rv == FALSE)
					rv = MlmeCheckForFastRoaming(pAd);
				
				if (rv == FALSE)
				{
					if ((pAd->StaCfg.LastScanTime + 10 * OS_HZ) < pAd->Mlme.Now32)
					{
						DBGPRINT(RT_DEBUG_TRACE, ("MMCHK - Roaming, No eligable entry, try new scan!\n"));
						pAd->StaCfg.ScanCnt = 2;
						pAd->StaCfg.LastScanTime = pAd->Mlme.Now32;
						MlmeAutoScan(pAd);
					}
				}
			}
		}
	}
	else if (ADHOC_ON(pAd))
	{
		//radar detect
		if ((pAd->CommonCfg.Channel > 14)
			&& (pAd->CommonCfg.bIEEE80211H == 1)
			&& RadarChannelCheck(pAd, pAd->CommonCfg.Channel))
		{
			RadarDetectPeriodic(pAd);
		}

		// If all peers leave, and this STA becomes the last one in this IBSS, then change MediaState
		// to DISCONNECTED. But still holding this IBSS (i.e. sending BEACON) so that other STAs can
		// join later.
		if (RTMP_TIME_AFTER(pAd->Mlme.Now32, pAd->StaCfg.LastBeaconRxTime + ADHOC_BEACON_LOST_TIME) &&
			OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED))
		{
			MLME_START_REQ_STRUCT     StartReq;
			
			DBGPRINT(RT_DEBUG_TRACE, ("MMCHK - excessive BEACON lost, last STA in this IBSS, MediaState=Disconnected\n")); 
			LinkDown(pAd, FALSE);

			StartParmFill(pAd, &StartReq, (CHAR *)pAd->MlmeAux.Ssid, pAd->MlmeAux.SsidLen);
			MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_START_REQ, sizeof(MLME_START_REQ_STRUCT), &StartReq);
			pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_START;
		}

		for (i = 1; i < MAX_LEN_OF_MAC_TABLE; i++) 
		{
			MAC_TABLE_ENTRY *pEntry = &pAd->MacTab.Content[i];

			if (pEntry->ValidAsCLI == FALSE)
				continue;

			if (RTMP_TIME_AFTER(pAd->Mlme.Now32, pEntry->LastBeaconRxTime + ADHOC_BEACON_LOST_TIME))
				MacTableDeleteEntry(pAd, pEntry->Aid, pEntry->Addr);
		}
	}
	else // no INFRA nor ADHOC connection
	{

		if (pAd->StaCfg.bScanReqIsFromWebUI &&
			RTMP_TIME_BEFORE(pAd->Mlme.Now32, pAd->StaCfg.LastScanTime + (30 * OS_HZ)))
			goto SKIP_AUTO_SCAN_CONN;
        else
            pAd->StaCfg.bScanReqIsFromWebUI = FALSE;
        
		if ((pAd->StaCfg.bAutoReconnect == TRUE)
			&& RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_START_UP)
			&& (MlmeValidateSSID(pAd->MlmeAux.AutoReconnectSsid, pAd->MlmeAux.AutoReconnectSsidLen) == TRUE))
		{
			if ((pAd->ScanTab.BssNr==0) && (pAd->Mlme.CntlMachine.CurrState == CNTL_IDLE))
			{
				MLME_SCAN_REQ_STRUCT	   ScanReq;

				if (RTMP_TIME_AFTER(pAd->Mlme.Now32, pAd->StaCfg.LastScanTime + (10 * OS_HZ)))
				{
					DBGPRINT(RT_DEBUG_TRACE, ("STAMlmePeriodicExec():CNTL - ScanTab.BssNr==0, start a new ACTIVE scan SSID[%s]\n", pAd->MlmeAux.AutoReconnectSsid));
					ScanParmFill(pAd, &ScanReq, (PSTRING) pAd->MlmeAux.AutoReconnectSsid, pAd->MlmeAux.AutoReconnectSsidLen, BSS_ANY, SCAN_ACTIVE);
					MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_SCAN_REQ, sizeof(MLME_SCAN_REQ_STRUCT), &ScanReq);
					pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_OID_LIST_SCAN;
					// Reset Missed scan number
					pAd->StaCfg.LastScanTime = pAd->Mlme.Now32;
				}
				else if (pAd->StaCfg.BssType == BSS_ADHOC)	// Quit the forever scan when in a very clean room
					MlmeAutoReconnectLastSSID(pAd);
			}
			else if (pAd->Mlme.CntlMachine.CurrState == CNTL_IDLE)
			{
				if ((pAd->Mlme.OneSecPeriodicRound % 7) == 0)
					{
						MlmeAutoScan(pAd);
						pAd->StaCfg.LastScanTime = pAd->Mlme.Now32;
					}
				else
				{
#ifdef CARRIER_DETECTION_SUPPORT // Roger sync Carrier
					if (pAd->CommonCfg.CarrierDetect.Enable == TRUE)
					{
						if ((pAd->Mlme.OneSecPeriodicRound % 5) == 1)
							MlmeAutoReconnectLastSSID(pAd);
					}
					else
#endif // CARRIER_DETECTION_SUPPORT // 
						MlmeAutoReconnectLastSSID(pAd);
				}
			}
		}
	}

SKIP_AUTO_SCAN_CONN:

#ifdef DOT11_N_SUPPORT
    if ((pAd->MacTab.Content[BSSID_WCID].TXBAbitmap !=0) && (pAd->MacTab.fAnyBASession == FALSE))
	{
		pAd->MacTab.fAnyBASession = TRUE;
		AsicUpdateProtect(pAd, HT_FORCERTSCTS,  ALLN_SETPROTECT, FALSE, FALSE);
	}
	else if ((pAd->MacTab.Content[BSSID_WCID].TXBAbitmap ==0) && (pAd->MacTab.fAnyBASession == TRUE))
	{
		pAd->MacTab.fAnyBASession = FALSE;
		AsicUpdateProtect(pAd, pAd->MlmeAux.AddHtInfo.AddHtInfo2.OperaionMode,  ALLN_SETPROTECT, FALSE, FALSE);
	}
#endif // DOT11_N_SUPPORT //


#ifdef DOT11_N_SUPPORT
#ifdef DOT11N_DRAFT3
	if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_SCAN_2040))
		TriEventCounterMaintenance(pAd);
#endif // DOT11N_DRAFT3 //
#endif // DOT11_N_SUPPORT //

	return;
}

// Link down report
VOID LinkDownExec(
	IN PVOID SystemSpecific1, 
	IN PVOID FunctionContext, 
	IN PVOID SystemSpecific2, 
	IN PVOID SystemSpecific3) 
{
	RTMP_ADAPTER *pAd = (RTMP_ADAPTER *)FunctionContext;

	if (pAd != NULL)
	{
		MLME_DISASSOC_REQ_STRUCT   DisassocReq;
		
		if ((pAd->StaCfg.PortSecured == WPA_802_1X_PORT_NOT_SECURED) &&
			(INFRA_ON(pAd)))
		{
			DBGPRINT(RT_DEBUG_TRACE, ("LinkDownExec(): disassociate with current AP...\n"));
			DisassocParmFill(pAd, &DisassocReq, pAd->CommonCfg.Bssid, REASON_DISASSOC_STA_LEAVING);
			MlmeEnqueue(pAd, ASSOC_STATE_MACHINE, MT2_MLME_DISASSOC_REQ, 
						sizeof(MLME_DISASSOC_REQ_STRUCT), &DisassocReq);
			pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_DISASSOC;

			pAd->IndicateMediaState = NdisMediaStateDisconnected;
			RTMP_IndicateMediaState(pAd);
		    pAd->ExtraInfo = GENERAL_LINK_DOWN;
		}	
	}
}

// IRQL = DISPATCH_LEVEL
VOID MlmeAutoScan(
	IN PRTMP_ADAPTER pAd)
{
	// check CntlMachine.CurrState to avoid collision with NDIS SetOID request
	if (pAd->Mlme.CntlMachine.CurrState == CNTL_IDLE)
	{
		DBGPRINT(RT_DEBUG_TRACE, ("MMCHK - Driver auto scan\n"));
		MlmeEnqueue(pAd, 
					MLME_CNTL_STATE_MACHINE, 
					OID_802_11_BSSID_LIST_SCAN, 
					pAd->MlmeAux.AutoReconnectSsidLen, 
					pAd->MlmeAux.AutoReconnectSsid);
		RTMP_MLME_HANDLER(pAd);
	}
}
	
// IRQL = DISPATCH_LEVEL
VOID MlmeAutoReconnectLastSSID(
	IN PRTMP_ADAPTER pAd)
{
	if (pAd->StaCfg.bAutoConnectByBssid)
	{	
		DBGPRINT(RT_DEBUG_TRACE, ("Driver auto reconnect to last OID_802_11_BSSID setting - %02X:%02X:%02X:%02X:%02X:%02X\n",
									pAd->MlmeAux.Bssid[0],
									pAd->MlmeAux.Bssid[1],
									pAd->MlmeAux.Bssid[2],
									pAd->MlmeAux.Bssid[3],
									pAd->MlmeAux.Bssid[4],
									pAd->MlmeAux.Bssid[5]));

		pAd->MlmeAux.Channel = pAd->CommonCfg.Channel;
		MlmeEnqueue(pAd,
			 MLME_CNTL_STATE_MACHINE,
			 OID_802_11_BSSID,
			 MAC_ADDR_LEN,
			 pAd->MlmeAux.Bssid);

		pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE;

		RTMP_MLME_HANDLER(pAd);
	}
	// check CntlMachine.CurrState to avoid collision with NDIS SetOID request
	else if ((pAd->Mlme.CntlMachine.CurrState == CNTL_IDLE) && 
		(MlmeValidateSSID(pAd->MlmeAux.AutoReconnectSsid, pAd->MlmeAux.AutoReconnectSsidLen) == TRUE))
	{
		NDIS_802_11_SSID OidSsid;
		OidSsid.SsidLength = pAd->MlmeAux.AutoReconnectSsidLen;
		NdisMoveMemory(OidSsid.Ssid, pAd->MlmeAux.AutoReconnectSsid, pAd->MlmeAux.AutoReconnectSsidLen);

		DBGPRINT(RT_DEBUG_TRACE, ("Driver auto reconnect to last OID_802_11_SSID setting - %s, len - %d\n", pAd->MlmeAux.AutoReconnectSsid, pAd->MlmeAux.AutoReconnectSsidLen));
		MlmeEnqueue(pAd, 
					MLME_CNTL_STATE_MACHINE, 
					OID_802_11_SSID, 
					sizeof(NDIS_802_11_SSID), 
					&OidSsid);
		RTMP_MLME_HANDLER(pAd);
	}
}