mgmt/p2p_rlm.c

/******************************************************************************
 *
 * This file is provided under a dual license.  When you use or
 * distribute this software, you may choose to be licensed under
 * version 2 of the GNU General Public License ("GPLv2 License")
 * or BSD License.
 *
 * GPLv2 License
 *
 * Copyright(C) 2016 MediaTek Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * 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 http://www.gnu.org/licenses/gpl-2.0.html for more details.
 *
 * BSD LICENSE
 *
 * Copyright(C) 2016 MediaTek Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/
/*
** Id: @(#) p2p_rlm.c@@
*/

/*! \file   "p2p_rlm.c"
*    \brief
*
*/

/*******************************************************************************
*                         C O M P I L E R   F L A G S
********************************************************************************
*/

/*******************************************************************************
*                    E X T E R N A L   R E F E R E N C E S
********************************************************************************
*/

#include "precomp.h"
#include "rlm.h"

/*******************************************************************************
*                              C O N S T A N T S
********************************************************************************
*/

/*******************************************************************************
*                             D A T A   T Y P E S
********************************************************************************
*/

/*******************************************************************************
*                            P U B L I C   D A T A
********************************************************************************
*/

/*******************************************************************************
*                           P R I V A T E   D A T A
********************************************************************************
*/

/*******************************************************************************
*                                 M A C R O S
********************************************************************************
*/

/*******************************************************************************
*                   F U N C T I O N   D E C L A R A T I O N S
********************************************************************************
*/

/*******************************************************************************
*                              F U N C T I O N S
********************************************************************************
*/

/*----------------------------------------------------------------------------*/
/*!
* \brief  Init AP Bss
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
VOID rlmBssInitForAP(P_ADAPTER_T prAdapter, P_BSS_INFO_T prBssInfo)
{
	UINT_8 i;

	ASSERT(prAdapter);
	ASSERT(prBssInfo);

	if (prBssInfo->eCurrentOPMode != OP_MODE_ACCESS_POINT)
		return;

	/* Operation band, channel shall be ready before invoking this function.
	 * Bandwidth may be ready if other network is connected
	 */
	prBssInfo->fg40mBwAllowed = FALSE;
	prBssInfo->fgAssoc40mBwAllowed = FALSE;
	prBssInfo->eBssSCO = CHNL_EXT_SCN;

	/* Check if AP can set its bw to 40MHz
	 * But if any of BSS is setup in 40MHz, the second BSS would prefer to use 20MHz
	 * in order to remain in SCC case
	 */
	if (cnmBss40mBwPermitted(prAdapter, prBssInfo->ucBssIndex)) {

		prBssInfo->eBssSCO = rlmGetScoForAP(prAdapter, prBssInfo);

		if (prBssInfo->eBssSCO != CHNL_EXT_SCN) {
			prBssInfo->fg40mBwAllowed = TRUE;
			prBssInfo->fgAssoc40mBwAllowed = TRUE;

			prBssInfo->ucHtOpInfo1 = (UINT_8)
			    (((UINT_32) prBssInfo->eBssSCO) | HT_OP_INFO1_STA_CHNL_WIDTH);

			rlmUpdateBwByChListForAP(prAdapter, prBssInfo);
		}
	}

	/* Filled the VHT BW/S1/S2 and MCS rate set */
	if (prBssInfo->ucPhyTypeSet & PHY_TYPE_BIT_VHT) {
		for (i = 0; i < 8; i++)
			prBssInfo->u2VhtBasicMcsSet |= BITS(2 * i, (2 * i + 1));
		prBssInfo->u2VhtBasicMcsSet &= (VHT_CAP_INFO_MCS_MAP_MCS9 << VHT_CAP_INFO_MCS_1SS_OFFSET);

		prBssInfo->ucVhtChannelWidth = cnmGetBssMaxBwToChnlBW(prAdapter, prBssInfo->ucBssIndex);
		if (prBssInfo->ucVhtChannelWidth == VHT_OP_CHANNEL_WIDTH_80P80) {
			/* TODO: BW80+80 support */
			DBGLOG(RLM, WARN, "BW80+80 not support. Fallback  to VHT_OP_CHANNEL_WIDTH_20_40\n");
			prBssInfo->ucVhtChannelWidth = VHT_OP_CHANNEL_WIDTH_20_40;
			prBssInfo->ucVhtChannelFrequencyS1 = 0;
			prBssInfo->ucVhtChannelFrequencyS2 = 0;
		} else {
			prBssInfo->ucVhtChannelFrequencyS1 =
				rlmGetVhtS1ForAP(prAdapter, prBssInfo);
			prBssInfo->ucVhtChannelFrequencyS2 = 0;
		}

		/* If the S1 is invalid, force to change bandwidth */
		if (prBssInfo->ucVhtChannelFrequencyS1 == 0)
			prBssInfo->ucVhtChannelWidth = VHT_OP_CHANNEL_WIDTH_20_40;
	} else {
		prBssInfo->ucVhtChannelWidth = VHT_OP_CHANNEL_WIDTH_20_40;
		prBssInfo->ucVhtChannelFrequencyS1 = 0;
		prBssInfo->ucVhtChannelFrequencyS2 = 0;
	}


	/*ERROR HANDLE*/
	if ((prBssInfo->ucVhtChannelWidth == VHT_OP_CHANNEL_WIDTH_80)
		|| (prBssInfo->ucVhtChannelWidth == VHT_OP_CHANNEL_WIDTH_160)
		|| (prBssInfo->ucVhtChannelWidth == VHT_OP_CHANNEL_WIDTH_80P80)) {

		if (prBssInfo->ucVhtChannelFrequencyS1 == 0) {
			DBGLOG(RLM, INFO, "Wrong AP S1 parameter setting, back to BW20!!!\n");

			prBssInfo->ucVhtChannelWidth = VHT_OP_CHANNEL_WIDTH_20_40;
			prBssInfo->ucVhtChannelFrequencyS1 = 0;
			prBssInfo->ucVhtChannelFrequencyS2 = 0;
		}
	}

	DBGLOG(RLM, INFO, "WLAN AP SCO=%d BW=%d S1=%d S2=%d CH=%d Band=%d\n",
	       prBssInfo->eBssSCO,
	       prBssInfo->ucVhtChannelWidth,
	       prBssInfo->ucVhtChannelFrequencyS1,
	       prBssInfo->ucVhtChannelFrequencyS2, prBssInfo->ucPrimaryChannel, prBssInfo->eBand);

}

/*----------------------------------------------------------------------------*/
/*!
* \brief For probe response (GO, IBSS) and association response
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
VOID rlmRspGenerateObssScanIE(P_ADAPTER_T prAdapter, P_MSDU_INFO_T prMsduInfo)
{
	P_BSS_INFO_T prBssInfo;
	P_IE_OBSS_SCAN_PARAM_T prObssScanIe;
	P_STA_RECORD_T prStaRec = (P_STA_RECORD_T) NULL;

	ASSERT(prAdapter);
	ASSERT(prMsduInfo);

	prStaRec = cnmGetStaRecByIndex(prAdapter, prMsduInfo->ucStaRecIndex);

	prBssInfo = GET_BSS_INFO_BY_INDEX(prAdapter, prMsduInfo->ucBssIndex);
	if (!prBssInfo)
		return;

	if (!IS_BSS_ACTIVE(prBssInfo))
		return;

	if (RLM_NET_IS_11N(prBssInfo) &&	/* !RLM_NET_IS_BOW(prBssInfo) &&   FIXME. */
	    prBssInfo->eCurrentOPMode == OP_MODE_ACCESS_POINT &&
	    (!prStaRec || (prStaRec->ucPhyTypeSet & PHY_TYPE_SET_802_11N)) &&
	    prBssInfo->eBand == BAND_2G4 && prBssInfo->eBssSCO != CHNL_EXT_SCN) {

		prObssScanIe = (P_IE_OBSS_SCAN_PARAM_T)
		    (((PUINT_8) prMsduInfo->prPacket) + prMsduInfo->u2FrameLength);

		/* Add 20/40 BSS coexistence IE */
		prObssScanIe->ucId = ELEM_ID_OBSS_SCAN_PARAMS;
		prObssScanIe->ucLength = sizeof(IE_OBSS_SCAN_PARAM_T) - ELEM_HDR_LEN;

		prObssScanIe->u2ScanPassiveDwell = dot11OBSSScanPassiveDwell;
		prObssScanIe->u2ScanActiveDwell = dot11OBSSScanActiveDwell;
		prObssScanIe->u2TriggerScanInterval = dot11BSSWidthTriggerScanInterval;
		prObssScanIe->u2ScanPassiveTotalPerChnl = dot11OBSSScanPassiveTotalPerChannel;
		prObssScanIe->u2ScanActiveTotalPerChnl = dot11OBSSScanActiveTotalPerChannel;
		prObssScanIe->u2WidthTransDelayFactor = dot11BSSWidthChannelTransitionDelayFactor;
		prObssScanIe->u2ScanActivityThres = dot11OBSSScanActivityThreshold;

		ASSERT(IE_SIZE(prObssScanIe) <= (ELEM_HDR_LEN + ELEM_MAX_LEN_OBSS_SCAN));

		prMsduInfo->u2FrameLength += IE_SIZE(prObssScanIe);
	}
}

/*----------------------------------------------------------------------------*/
/*!
* \brief P2P GO.
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
BOOLEAN rlmUpdateBwByChListForAP(P_ADAPTER_T prAdapter, P_BSS_INFO_T prBssInfo)
{
	UINT_8 ucLevel;
	BOOLEAN fgBwChange;

	ASSERT(prAdapter);
	ASSERT(prBssInfo);

	fgBwChange = FALSE;

	if (prBssInfo->eBssSCO == CHNL_EXT_SCN)
		return fgBwChange;

	ucLevel = rlmObssChnlLevel(prBssInfo, prBssInfo->eBand, prBssInfo->ucPrimaryChannel, prBssInfo->eBssSCO);

	if (ucLevel == CHNL_LEVEL0) {
		/* Forced to 20MHz, so extended channel is SCN and STA width is zero */
		prBssInfo->fgObssActionForcedTo20M = TRUE;

		if (prBssInfo->ucHtOpInfo1 != (UINT_8) CHNL_EXT_SCN) {
			prBssInfo->ucHtOpInfo1 = (UINT_8) CHNL_EXT_SCN;
			fgBwChange = TRUE;
		}

		cnmTimerStartTimer(prAdapter, &prBssInfo->rObssScanTimer, OBSS_20_40M_TIMEOUT * MSEC_PER_SEC);
	}

	/* Clear up all channel lists */
	prBssInfo->auc2G_20mReqChnlList[0] = 0;
	prBssInfo->auc2G_NonHtChnlList[0] = 0;
	prBssInfo->auc2G_PriChnlList[0] = 0;
	prBssInfo->auc2G_SecChnlList[0] = 0;
	prBssInfo->auc5G_20mReqChnlList[0] = 0;
	prBssInfo->auc5G_NonHtChnlList[0] = 0;
	prBssInfo->auc5G_PriChnlList[0] = 0;
	prBssInfo->auc5G_SecChnlList[0] = 0;

	return fgBwChange;
}

/*----------------------------------------------------------------------------*/
/*!
* \brief
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
VOID rlmProcessPublicAction(P_ADAPTER_T prAdapter, P_SW_RFB_T prSwRfb)
{
	P_ACTION_20_40_COEXIST_FRAME prRxFrame;
	P_IE_20_40_COEXIST_T prCoexist;
	P_IE_INTOLERANT_CHNL_REPORT_T prChnlReport;
	P_BSS_INFO_T prBssInfo;
	P_STA_RECORD_T prStaRec;
	PUINT_8 pucIE;
	UINT_16 u2IELength, u2Offset;
	UINT_8 i, j;

	ASSERT(prAdapter);
	ASSERT(prSwRfb);

	prRxFrame = (P_ACTION_20_40_COEXIST_FRAME) prSwRfb->pvHeader;
	prStaRec = cnmGetStaRecByIndex(prAdapter, prSwRfb->ucStaRecIdx);

	if (!(prSwRfb->prStaRec)) {
		DBGLOG(P2P, ERROR, "prSwRfb->prStaRec is null.\n");
		return;
	}

	if (prRxFrame->ucAction != ACTION_PUBLIC_20_40_COEXIST || !prStaRec || prStaRec->ucStaState != STA_STATE_3 ||
	    prSwRfb->u2PacketLen < (WLAN_MAC_MGMT_HEADER_LEN + 5) || prSwRfb->prStaRec->ucBssIndex !=
	    /* HIF_RX_HDR_GET_NETWORK_IDX(prSwRfb->prHifRxHdr) != */
	    prStaRec->ucBssIndex) {
		return;
	}

	prBssInfo = GET_BSS_INFO_BY_INDEX(prAdapter, prStaRec->ucBssIndex);
	ASSERT(prBssInfo);

	if (!IS_BSS_ACTIVE(prBssInfo) ||
	    prBssInfo->eCurrentOPMode != OP_MODE_ACCESS_POINT || prBssInfo->eBssSCO == CHNL_EXT_SCN) {
		return;
	}

	prCoexist = &prRxFrame->rBssCoexist;
	if (prCoexist->ucData & (BSS_COEXIST_40M_INTOLERANT | BSS_COEXIST_20M_REQ)) {
		ASSERT(prBssInfo->auc2G_20mReqChnlList[0] <= CHNL_LIST_SZ_2G);
		for (i = 1; i <= prBssInfo->auc2G_20mReqChnlList[0] && i <= CHNL_LIST_SZ_2G; i++) {
			if (prBssInfo->auc2G_20mReqChnlList[i] == prBssInfo->ucPrimaryChannel)
				break;
		}
		if ((i > prBssInfo->auc2G_20mReqChnlList[0]) && (i <= CHNL_LIST_SZ_2G)) {
			prBssInfo->auc2G_20mReqChnlList[i] = prBssInfo->ucPrimaryChannel;
			prBssInfo->auc2G_20mReqChnlList[0]++;
		}
	}

	/* Process intolerant channel report IE */
	pucIE = (PUINT_8) &prRxFrame->rChnlReport;
	u2IELength = prSwRfb->u2PacketLen - (WLAN_MAC_MGMT_HEADER_LEN + 5);

	IE_FOR_EACH(pucIE, u2IELength, u2Offset) {
		switch (IE_ID(pucIE)) {
		case ELEM_ID_20_40_INTOLERANT_CHNL_REPORT:
			prChnlReport = (P_IE_INTOLERANT_CHNL_REPORT_T) pucIE;

			if (prChnlReport->ucLength <= 1)
				break;

			/* To do: process regulatory class. Now we assume 2.4G band */

			for (j = 0; j < prChnlReport->ucLength - 1; j++) {
				/* Update non-HT channel list */
				ASSERT(prBssInfo->auc2G_NonHtChnlList[0] <= CHNL_LIST_SZ_2G);
				for (i = 1; i <= prBssInfo->auc2G_NonHtChnlList[0] && i <= CHNL_LIST_SZ_2G; i++) {
					if (prBssInfo->auc2G_NonHtChnlList[i] == prChnlReport->aucChannelList[j])
						break;
				}
				if ((i > prBssInfo->auc2G_NonHtChnlList[0]) && (i <= CHNL_LIST_SZ_2G)) {
					prBssInfo->auc2G_NonHtChnlList[i] = prChnlReport->aucChannelList[j];
					prBssInfo->auc2G_NonHtChnlList[0]++;
				}
			}
			break;

		default:
			break;
		}
	}			/* end of IE_FOR_EACH */

	if (rlmUpdateBwByChListForAP(prAdapter, prBssInfo)) {
		bssUpdateBeaconContent(prAdapter, prBssInfo->ucBssIndex);
		rlmSyncOperationParams(prAdapter, prBssInfo);
	}

	/* Check if OBSS scan exemption response should be sent */
	if (prCoexist->ucData & BSS_COEXIST_OBSS_SCAN_EXEMPTION_REQ)
		rlmObssScanExemptionRsp(prAdapter, prBssInfo, prSwRfb);
}

/*----------------------------------------------------------------------------*/
/*!
* \brief
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
VOID rlmHandleObssStatusEventPkt(P_ADAPTER_T prAdapter, P_EVENT_AP_OBSS_STATUS_T prObssStatus)
{
	P_BSS_INFO_T prBssInfo;

	ASSERT(prAdapter);
	ASSERT(prObssStatus);
	ASSERT(prObssStatus->ucBssIndex < MAX_BSS_INDEX);

	prBssInfo = GET_BSS_INFO_BY_INDEX(prAdapter, prObssStatus->ucBssIndex);

	if (prBssInfo->eCurrentOPMode != OP_MODE_ACCESS_POINT)
		return;

	prBssInfo->fgObssErpProtectMode = (BOOLEAN) prObssStatus->ucObssErpProtectMode;
	prBssInfo->eObssHtProtectMode = (ENUM_HT_PROTECT_MODE_T) prObssStatus->ucObssHtProtectMode;
	prBssInfo->eObssGfOperationMode = (ENUM_GF_MODE_T) prObssStatus->ucObssGfOperationMode;
	prBssInfo->fgObssRifsOperationMode = (BOOLEAN) prObssStatus->ucObssRifsOperationMode;
	prBssInfo->fgObssBeaconForcedTo20M = (BOOLEAN) prObssStatus->ucObssBeaconForcedTo20M;

	/* Check if Beacon content need to be updated */
	rlmUpdateParamsForAP(prAdapter, prBssInfo, TRUE);
}

/*----------------------------------------------------------------------------*/
/*!
* \brief It is only for AP mode in NETWORK_TYPE_P2P_INDEX.
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
VOID rlmUpdateParamsForAP(P_ADAPTER_T prAdapter, P_BSS_INFO_T prBssInfo, BOOLEAN fgUpdateBeacon)
{
	P_LINK_T prStaList;
	P_STA_RECORD_T prStaRec;
	BOOLEAN fgErpProtectMode, fgSta40mIntolerant;
	BOOLEAN fgUseShortPreamble, fgUseShortSlotTime;
	ENUM_HT_PROTECT_MODE_T eHtProtectMode;
	ENUM_GF_MODE_T eGfOperationMode;
	UINT_8 ucHtOpInfo1;

	ASSERT(prAdapter);
	ASSERT(prBssInfo);

	if (!IS_BSS_ACTIVE(prBssInfo) || prBssInfo->eCurrentOPMode != OP_MODE_ACCESS_POINT)
		return;

	fgErpProtectMode = FALSE;
	eHtProtectMode = HT_PROTECT_MODE_NONE;
	eGfOperationMode = GF_MODE_NORMAL;
	fgSta40mIntolerant = FALSE;
	fgUseShortPreamble = prBssInfo->fgIsShortPreambleAllowed;
	fgUseShortSlotTime = TRUE;
	ucHtOpInfo1 = (UINT_8) CHNL_EXT_SCN;

	prStaList = &prBssInfo->rStaRecOfClientList;

	LINK_FOR_EACH_ENTRY(prStaRec, prStaList, rLinkEntry, STA_RECORD_T) {
		if (!prStaRec) {
			DBGLOG(P2P, WARN, "NULL STA_REC ptr in BSS client list\n");
			bssDumpClientList(prAdapter, prBssInfo);
			break;
		}

		if (prStaRec->fgIsInUse && prStaRec->ucStaState == STA_STATE_3 &&
		    prStaRec->ucBssIndex == prBssInfo->ucBssIndex) {
			if (!(prStaRec->ucPhyTypeSet & (PHY_TYPE_SET_802_11GN | PHY_TYPE_SET_802_11A))) {
				/* B-only mode, so mode 1 (ERP protection) */
				fgErpProtectMode = TRUE;
			}

			if (!(prStaRec->ucPhyTypeSet & PHY_TYPE_SET_802_11N)) {
				/* BG-only or A-only */
				eHtProtectMode = HT_PROTECT_MODE_NON_HT;
			} else if (prBssInfo->fg40mBwAllowed &&
				!(prStaRec->u2HtCapInfo & HT_CAP_INFO_SUP_CHNL_WIDTH)) {
				/* 20MHz-only */
				if (eHtProtectMode == HT_PROTECT_MODE_NONE)
					eHtProtectMode = HT_PROTECT_MODE_20M;
			}

			if (!(prStaRec->u2HtCapInfo & HT_CAP_INFO_HT_GF))
				eGfOperationMode = GF_MODE_PROTECT;

			if (!(prStaRec->u2CapInfo & CAP_INFO_SHORT_PREAMBLE))
				fgUseShortPreamble = FALSE;
#if 1
			/*ap mode throughput enhancement
			*	only 2.4G with B mode client connecion use long slot time
			*/
			if ((!(prStaRec->u2CapInfo & CAP_INFO_SHORT_SLOT_TIME))
					&& fgErpProtectMode
					&& prBssInfo->eBand == BAND_2G4)
				fgUseShortSlotTime = FALSE;
#else
			if (!(prStaRec->u2CapInfo & CAP_INFO_SHORT_SLOT_TIME))
				fgUseShortSlotTime = FALSE;
#endif
			if (prStaRec->u2HtCapInfo & HT_CAP_INFO_40M_INTOLERANT)
				fgSta40mIntolerant = TRUE;
		}
	}			/* end of LINK_FOR_EACH_ENTRY */

	/* Check if HT operation IE about 20/40M bandwidth shall be updated */
	if (prBssInfo->eBssSCO != CHNL_EXT_SCN) {
		if (/*!LINK_IS_EMPTY(prStaList) && */ !fgSta40mIntolerant &&
		    !prBssInfo->fgObssActionForcedTo20M && !prBssInfo->fgObssBeaconForcedTo20M) {

			ucHtOpInfo1 = (UINT_8)
			    (((UINT_32) prBssInfo->eBssSCO) | HT_OP_INFO1_STA_CHNL_WIDTH);
		}
	}

	/* Check if any new parameter may be updated */
	if (prBssInfo->fgErpProtectMode != fgErpProtectMode ||
	    prBssInfo->eHtProtectMode != eHtProtectMode ||
	    prBssInfo->eGfOperationMode != eGfOperationMode ||
	    prBssInfo->ucHtOpInfo1 != ucHtOpInfo1 ||
	    prBssInfo->fgUseShortPreamble != fgUseShortPreamble ||
	    prBssInfo->fgUseShortSlotTime != fgUseShortSlotTime) {

		prBssInfo->fgErpProtectMode = fgErpProtectMode;
		prBssInfo->eHtProtectMode = eHtProtectMode;
		prBssInfo->eGfOperationMode = eGfOperationMode;
		prBssInfo->ucHtOpInfo1 = ucHtOpInfo1;
		prBssInfo->fgUseShortPreamble = fgUseShortPreamble;
		prBssInfo->fgUseShortSlotTime = fgUseShortSlotTime;

		if (fgUseShortSlotTime)
			prBssInfo->u2CapInfo |= CAP_INFO_SHORT_SLOT_TIME;
		else
			prBssInfo->u2CapInfo &= ~CAP_INFO_SHORT_SLOT_TIME;

		rlmSyncOperationParams(prAdapter, prBssInfo);
		fgUpdateBeacon = TRUE;
	}

	/* Update Beacon content if related IE content is changed */
	if (fgUpdateBeacon)
		bssUpdateBeaconContent(prAdapter, prBssInfo->ucBssIndex);
}
#if 0
/*----------------------------------------------------------------------------*/
/*!
* \brief    Initial the channel list from the domain information.
*                 This function is called after P2P initial and Domain information changed.
*                 Make sure the device is disconnected while changing domain information.
*
* \param[in] prAdapter  Pointer of ADAPTER_T
*
* \return boolean value if probe response frame is
*/
/*----------------------------------------------------------------------------*/
VOID rlmFuncInitialChannelList(IN P_ADAPTER_T prAdapter)
{
	P_P2P_CONNECTION_SETTINGS_T prP2pConnSetting = (P_P2P_CONNECTION_SETTINGS_T) NULL;
	P_DOMAIN_INFO_ENTRY prDomainInfoEntry = (P_DOMAIN_INFO_ENTRY) NULL;
	P_DOMAIN_SUBBAND_INFO prDomainSubBand = (P_DOMAIN_SUBBAND_INFO) NULL;
	P_CHANNEL_ENTRY_FIELD_T prChannelEntryField = (P_CHANNEL_ENTRY_FIELD_T) NULL;
	UINT_32 u4Idx = 0, u4IdxII = 0;
	UINT_8 ucBufferSize = P2P_MAX_SUPPORTED_CHANNEL_LIST_SIZE;
#if 0
	UINT_8 ucSocialChnlSupport = 0, ucAutoChnl = 0;
#endif

	do {
		ASSERT_BREAK(prAdapter != NULL);

		prP2pConnSetting = prAdapter->rWifiVar.prP2PConnSettings;
#if 0
		ucAutoChnl = prP2pConnSetting->ucOperatingChnl;
#endif

		prDomainInfoEntry = rlmDomainGetDomainInfo(prAdapter);

		ASSERT_BREAK((prDomainInfoEntry != NULL) && (prP2pConnSetting != NULL));

		prChannelEntryField = (P_CHANNEL_ENTRY_FIELD_T) prP2pConnSetting->aucChannelEntriesField;

		for (u4Idx = 0; u4Idx < MAX_SUBBAND_NUM; u4Idx++) {
			prDomainSubBand = &prDomainInfoEntry->rSubBand[u4Idx];

			if (((prDomainSubBand->ucBand == BAND_5G) && (!prAdapter->fgEnable5GBand))
			    || (prDomainSubBand->ucBand == BAND_NULL)) {
				continue;
			}

			if (ucBufferSize < (P2P_ATTRI_LEN_CHANNEL_ENTRY + prDomainSubBand->ucNumChannels)) {
				/* Buffer is not enough to include all supported channels. */
				break;	/* for */
			}

			prChannelEntryField->ucRegulatoryClass = prDomainSubBand->ucRegClass;
			prChannelEntryField->ucNumberOfChannels = prDomainSubBand->ucNumChannels;

			for (u4IdxII = 0; u4IdxII < prDomainSubBand->ucNumChannels; u4IdxII++) {
				prChannelEntryField->aucChannelList[u4IdxII] =
				    prDomainSubBand->ucFirstChannelNum + (u4IdxII * prDomainSubBand->ucChannelSpan);

#if 0
				switch (prChannelEntryField->aucChannelList[u4IdxII]) {
				case 1:
					ucSocialChnlSupport = 1;
					break;
				case 6:
					ucSocialChnlSupport = 6;
					break;
				case 11:
					ucSocialChnlSupport = 11;
					break;
				default:
					break;
				}

#endif
			}

			if (ucBufferSize >= (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryField->ucNumberOfChannels))
				ucBufferSize -= (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryField->ucNumberOfChannels);
			else
				break;

			prChannelEntryField =
			    (P_CHANNEL_ENTRY_FIELD_T) ((ULONG) prChannelEntryField +
						       P2P_ATTRI_LEN_CHANNEL_ENTRY +
						       (ULONG) prChannelEntryField->ucNumberOfChannels);

		}

#if 0
		if (prP2pConnSetting->ucListenChnl == 0) {
			prP2pConnSetting->ucListenChnl = P2P_DEFAULT_LISTEN_CHANNEL;

			if (ucSocialChnlSupport != 0) {
				/* 1. User Not Set LISTEN channel.
				 * 2. Social channel is not empty.
				 */
				prP2pConnSetting->ucListenChnl = ucSocialChnlSupport;
			}
		}
#endif

		/* TODO: 20110921 frog - */
		/* If LISTEN channel is not set,
		 * a random supported channel would be set.
		 * If no social channel is supported, DEFAULT channel would be set.
		 */

		prP2pConnSetting->ucRfChannelListSize = P2P_MAX_SUPPORTED_CHANNEL_LIST_SIZE - ucBufferSize;

#if 0
		if (prP2pConnSetting->ucOperatingChnl == 0) {	/* User not set OPERATE channel. */

			if (scnQuerySparseChannel(prAdapter, NULL, &ucAutoChnl))
				break;	/* while */

			ucBufferSize = prP2pConnSetting->ucRfChannelListSize;

			prChannelEntryField = (P_CHANNEL_ENTRY_FIELD_T) prP2pConnSetting->aucChannelEntriesField;

			while (ucBufferSize != 0) {
				if (prChannelEntryField->ucNumberOfChannels != 0) {
					ucAutoChnl = prChannelEntryField->aucChannelList[0];
					break;	/* while */
				}

				else {
					prChannelEntryField =
					    (P_CHANNEL_ENTRY_FIELD_T) ((UINT_32) prChannelEntryField
								       + P2P_ATTRI_LEN_CHANNEL_ENTRY + (UINT_32)
								       prChannelEntryField->ucNumberOfChannels);

					ucBufferSize -=
					    (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryField->ucNumberOfChannels);
				}

			}

		}
#endif
		/* We assume user would not set a channel not in the channel list.
		 * If so, the operating channel still depends on target device supporting capability.
		 */

		/* TODO: 20110921 frog - */
		/* If the Operating channel is not set, a channel from supported channel list is set automatically.
		 * If there is no supported channel in channel list, a DEFAULT channel is set.
		 */

	} while (FALSE);

#if 0
	prP2pConnSetting->ucOperatingChnl = ucAutoChnl;
#endif
}				/* rlmFuncInitialChannelList */

/*----------------------------------------------------------------------------*/
/*!
* \brief    Find a common channel list from the local channel list info & target channel list info.
*
* \param[in] prAdapter  Pointer of ADAPTER_T
*
* \return boolean value if probe response frame is
*/
/*----------------------------------------------------------------------------*/
VOID
rlmFuncCommonChannelList(IN P_ADAPTER_T prAdapter,
			 IN P_CHANNEL_ENTRY_FIELD_T prChannelEntryII, IN UINT_8 ucChannelListSize)
{
	P_P2P_CONNECTION_SETTINGS_T prP2pConnSetting = (P_P2P_CONNECTION_SETTINGS_T) NULL;
	P_CHANNEL_ENTRY_FIELD_T prChannelEntryI =
	    (P_CHANNEL_ENTRY_FIELD_T) NULL, prChannelEntryIII = (P_CHANNEL_ENTRY_FIELD_T) NULL;
	UINT_8 aucCommonChannelList[P2P_MAX_SUPPORTED_CHANNEL_LIST_SIZE];
	UINT_8 ucOriChnlSize = 0, ucNewChnlSize = 0;

	do {

		ASSERT_BREAK(prAdapter != NULL);

		prP2pConnSetting = prAdapter->rWifiVar.prP2PConnSettings;

		prChannelEntryIII = (P_CHANNEL_ENTRY_FIELD_T) aucCommonChannelList;

		while (ucChannelListSize > 0) {

			prChannelEntryI = (P_CHANNEL_ENTRY_FIELD_T) prP2pConnSetting->aucChannelEntriesField;
			ucOriChnlSize = prP2pConnSetting->ucRfChannelListSize;

			while (ucOriChnlSize > 0) {
				if (prChannelEntryI->ucRegulatoryClass == prChannelEntryII->ucRegulatoryClass) {
					prChannelEntryIII->ucRegulatoryClass = prChannelEntryI->ucRegulatoryClass;
					/* TODO: Currently we assume that the regulatory class the same,
					 * the channels are the same.
					 */
					kalMemCopy(prChannelEntryIII->aucChannelList,
						   prChannelEntryII->aucChannelList,
						   prChannelEntryII->ucNumberOfChannels);
					prChannelEntryIII->ucNumberOfChannels = prChannelEntryII->ucNumberOfChannels;

					ucNewChnlSize +=
					    P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryIII->ucNumberOfChannels;

					prChannelEntryIII =
					    (P_CHANNEL_ENTRY_FIELD_T) ((ULONG) prChannelEntryIII +
								       P2P_ATTRI_LEN_CHANNEL_ENTRY +
								       (ULONG) prChannelEntryIII->ucNumberOfChannels);
				}

				ucOriChnlSize -= (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryI->ucNumberOfChannels);

				prChannelEntryI =
				    (P_CHANNEL_ENTRY_FIELD_T) ((ULONG) prChannelEntryI +
							       P2P_ATTRI_LEN_CHANNEL_ENTRY +
							       (ULONG) prChannelEntryI->ucNumberOfChannels);

			}

			ucChannelListSize -= (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryII->ucNumberOfChannels);

			prChannelEntryII = (P_CHANNEL_ENTRY_FIELD_T) ((ULONG) prChannelEntryII +
								      P2P_ATTRI_LEN_CHANNEL_ENTRY +
								      (ULONG) prChannelEntryII->ucNumberOfChannels);

		}

		kalMemCopy(prP2pConnSetting->aucChannelEntriesField, aucCommonChannelList, ucNewChnlSize);
		prP2pConnSetting->ucRfChannelListSize = ucNewChnlSize;

	} while (FALSE);
}				/* rlmFuncCommonChannelList */

/*----------------------------------------------------------------------------*/
/*!
* \brief
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
UINT_8 rlmFuncFindOperatingClass(IN P_ADAPTER_T prAdapter, IN UINT_8 ucChannelNum)
{
	UINT_8 ucRegulatoryClass = 0, ucBufferSize = 0;
	P_P2P_CONNECTION_SETTINGS_T prP2pConnSetting = (P_P2P_CONNECTION_SETTINGS_T) NULL;
	P_CHANNEL_ENTRY_FIELD_T prChannelEntryField = (P_CHANNEL_ENTRY_FIELD_T) NULL;
	UINT_32 u4Idx = 0;

	do {
		ASSERT_BREAK(prAdapter != NULL);

		prP2pConnSetting = prAdapter->rWifiVar.prP2PConnSettings;
		ucBufferSize = prP2pConnSetting->ucRfChannelListSize;
		prChannelEntryField = (P_CHANNEL_ENTRY_FIELD_T) prP2pConnSetting->aucChannelEntriesField;

		while (ucBufferSize != 0) {

			for (u4Idx = 0; u4Idx < prChannelEntryField->ucNumberOfChannels; u4Idx++) {
				if (prChannelEntryField->aucChannelList[u4Idx] == ucChannelNum) {
					ucRegulatoryClass = prChannelEntryField->ucRegulatoryClass;
					break;
				}

			}

			if (ucRegulatoryClass != 0)
				break;	/* while */
			prChannelEntryField =
			    (P_CHANNEL_ENTRY_FIELD_T) ((ULONG) prChannelEntryField +
						       P2P_ATTRI_LEN_CHANNEL_ENTRY +
						       (ULONG) prChannelEntryField->ucNumberOfChannels);

			ucBufferSize -= (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntryField->ucNumberOfChannels);

		}

	} while (FALSE);

	return ucRegulatoryClass;
}				/* rlmFuncFindOperatingClass */

/*----------------------------------------------------------------------------*/
/*!
* \brief
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
BOOLEAN
rlmFuncFindAvailableChannel(IN P_ADAPTER_T prAdapter,
			    IN UINT_8 ucCheckChnl,
			    IN PUINT_8 pucSuggestChannel, IN BOOLEAN fgIsSocialChannel, IN BOOLEAN fgIsDefaultChannel)
{
	BOOLEAN fgIsResultAvailable = FALSE;
	P_CHANNEL_ENTRY_FIELD_T prChannelEntry = (P_CHANNEL_ENTRY_FIELD_T) NULL;
	P_P2P_CONNECTION_SETTINGS_T prP2pConnSetting = (P_P2P_CONNECTION_SETTINGS_T) NULL;
	UINT_8 ucBufferSize = 0, ucIdx = 0, ucChannelSelected = 0;

	do {
		ASSERT_BREAK(prAdapter != NULL);

		if (fgIsDefaultChannel)
			ucChannelSelected = P2P_DEFAULT_LISTEN_CHANNEL;

		prP2pConnSetting = prAdapter->rWifiVar.prP2PConnSettings;
		ucBufferSize = prP2pConnSetting->ucRfChannelListSize;
		prChannelEntry = (P_CHANNEL_ENTRY_FIELD_T) prP2pConnSetting->aucChannelEntriesField;

		while ((ucBufferSize != 0) && (!fgIsResultAvailable)) {

			for (ucIdx = 0; ucIdx < prChannelEntry->ucNumberOfChannels; ucIdx++) {
				if ((!fgIsSocialChannel) ||
				    (prChannelEntry->aucChannelList[ucIdx] == 1) ||
				    (prChannelEntry->aucChannelList[ucIdx] == 6) ||
				    (prChannelEntry->aucChannelList[ucIdx] == 11)) {

					if (prChannelEntry->aucChannelList[ucIdx] <= 11) {
						/* 2.4G. */
						ucChannelSelected = prChannelEntry->aucChannelList[ucIdx];
					} else if ((prChannelEntry->aucChannelList[ucIdx] < 52)
						   && (prChannelEntry->aucChannelList[ucIdx] > 14)) {
						/* 2.4G + 5G. */
						ucChannelSelected = prChannelEntry->aucChannelList[ucIdx];
					}

					if (ucChannelSelected == ucCheckChnl) {
						fgIsResultAvailable = TRUE;
						break;
					}
				}

			}

			ucBufferSize -= (P2P_ATTRI_LEN_CHANNEL_ENTRY + prChannelEntry->ucNumberOfChannels);

			prChannelEntry = (P_CHANNEL_ENTRY_FIELD_T) ((ULONG) prChannelEntry +
								    P2P_ATTRI_LEN_CHANNEL_ENTRY +
								    (ULONG) prChannelEntry->ucNumberOfChannels);

		}

		if ((!fgIsResultAvailable) && (pucSuggestChannel != NULL)) {
			DBGLOG(P2P, TRACE,
			       "The request channel %d is not available, sugguested channel:%d\n",
			       ucCheckChnl, ucChannelSelected);
			/* Given a suggested channel. */
			*pucSuggestChannel = ucChannelSelected;
		}

	} while (FALSE);

	return fgIsResultAvailable;
}
#endif

/*----------------------------------------------------------------------------*/
/*!
* \brief
*
* \param[in]
*
* \return none
*/
/*----------------------------------------------------------------------------*/
ENUM_CHNL_EXT_T rlmDecideScoForAP(P_ADAPTER_T prAdapter, P_BSS_INFO_T prBssInfo)
{
	P_DOMAIN_SUBBAND_INFO prSubband;
	P_DOMAIN_INFO_ENTRY prDomainInfo;
	UINT_8 ucSecondChannel, i, j;
	ENUM_CHNL_EXT_T eSCO;
	ENUM_CHNL_EXT_T eTempSCO;
	UINT_8 ucMaxBandwidth = MAX_BW_80_80_MHZ; /*chip capability*/

	eSCO = CHNL_EXT_SCN;
	eTempSCO = CHNL_EXT_SCN;

	if (prBssInfo->eBand == BAND_2G4) {
		if (prBssInfo->ucPrimaryChannel != 14)
			eSCO = (prBssInfo->ucPrimaryChannel > 7) ? CHNL_EXT_SCB : CHNL_EXT_SCA;
	} else {
		if (regd_is_single_sku_en()) {
			if (rlmDomainIsLegalChannel(prAdapter, prBssInfo->eBand,
										prBssInfo->ucPrimaryChannel))
				eSCO = rlmSelectSecondaryChannelType(prAdapter, prBssInfo->eBand,
										prBssInfo->ucPrimaryChannel);
		} else {
		prDomainInfo = rlmDomainGetDomainInfo(prAdapter);
		ASSERT(prDomainInfo);

		for (i = 0; i < MAX_SUBBAND_NUM; i++) {
			prSubband = &prDomainInfo->rSubBand[i];
			if (prSubband->ucBand == prBssInfo->eBand) {
				for (j = 0; j < prSubband->ucNumChannels; j++) {
					if ((prSubband->ucFirstChannelNum + j * prSubband->ucChannelSpan)
					    == prBssInfo->ucPrimaryChannel) {
						eSCO = (j & 1) ? CHNL_EXT_SCB : CHNL_EXT_SCA;
						break;
					}
				}

				if (j < prSubband->ucNumChannels)
					break;	/* Found */
			}
		}
	}
	}

	/* Check if it is boundary channel and 40MHz BW is permitted */
	if (eSCO != CHNL_EXT_SCN) {
		ucSecondChannel = (eSCO == CHNL_EXT_SCA) ?
		    (prBssInfo->ucPrimaryChannel + CHNL_SPAN_20) : (prBssInfo->ucPrimaryChannel - CHNL_SPAN_20);

		if (!rlmDomainIsLegalChannel(prAdapter, prBssInfo->eBand, ucSecondChannel))
			eSCO = CHNL_EXT_SCN;
	}

	/* Overwrite SCO settings by wifi cfg */
	if (IS_BSS_P2P(prBssInfo)) {
		/* AP mode */
		if (p2pFuncIsAPMode(prAdapter->rWifiVar.prP2PConnSettings[prBssInfo->u4PrivateData])) {
			if (prAdapter->rWifiVar.ucApSco == CHNL_EXT_SCA || prAdapter->rWifiVar.ucApSco == CHNL_EXT_SCB)
				eTempSCO = (ENUM_CHNL_EXT_T) prAdapter->rWifiVar.ucApSco;
		}
		/* P2P mode */
		else {
			if (prAdapter->rWifiVar.ucP2pGoSco == CHNL_EXT_SCA ||
			    prAdapter->rWifiVar.ucP2pGoSco == CHNL_EXT_SCB) {
				eTempSCO = (ENUM_CHNL_EXT_T) prAdapter->rWifiVar.ucP2pGoSco;
			}
		}

		/* Check again if it is boundary channel and 40MHz BW is permitted */
		if (eTempSCO != CHNL_EXT_SCN) {
			ucSecondChannel = (eTempSCO == CHNL_EXT_SCA) ?
			    (prBssInfo->ucPrimaryChannel + 4) : (prBssInfo->ucPrimaryChannel - 4);
			if (rlmDomainIsLegalChannel(prAdapter, prBssInfo->eBand, ucSecondChannel))
				eSCO = eTempSCO;
		}
	}

	/* Overwrite SCO settings by wifi cfg bandwidth setting */
	if (IS_BSS_P2P(prBssInfo)) {
		/* AP mode */
		if (p2pFuncIsAPMode(prAdapter->rWifiVar.prP2PConnSettings[prBssInfo->u4PrivateData])) {
			if (prBssInfo->eBand == BAND_2G4)
				ucMaxBandwidth = prAdapter->rWifiVar.ucAp2gBandwidth;
			else
				ucMaxBandwidth = prAdapter->rWifiVar.ucAp5gBandwidth;
		}
		/* P2P mode */
		else {
			if (prBssInfo->eBand == BAND_2G4)
				ucMaxBandwidth = prAdapter->rWifiVar.ucP2p2gBandwidth;
			else
				ucMaxBandwidth = prAdapter->rWifiVar.ucP2p5gBandwidth;
		}

		if (ucMaxBandwidth < MAX_BW_40MHZ)
			eSCO = CHNL_EXT_SCN;
	}

	return eSCO;
}

/*----------------------------------------------------------------------------*/
/*!
* \brief: Get AP secondary channel offset from cfg80211 or wifi.cfg
*
* \param[in] prAdapter  Pointer of ADAPTER_T, prBssInfo Pointer of BSS_INFO_T,
*
* \return ENUM_CHNL_EXT_T AP secondary channel offset
*/
/*----------------------------------------------------------------------------*/
ENUM_CHNL_EXT_T rlmGetScoForAP(P_ADAPTER_T prAdapter, P_BSS_INFO_T prBssInfo)
{
	ENUM_BAND_T eBand;
	UINT_8 ucChannel;
	ENUM_CHNL_EXT_T eSCO;
	INT_32 i4DeltaBw;
	UINT_32 u4AndOneSCO;
	P_P2P_ROLE_FSM_INFO_T prP2pRoleFsmInfo = (P_P2P_ROLE_FSM_INFO_T) NULL;
	P_P2P_CONNECTION_REQ_INFO_T prP2pConnReqInfo = (P_P2P_CONNECTION_REQ_INFO_T) NULL;

	prP2pRoleFsmInfo = p2pFuncGetRoleByBssIdx(prAdapter, prBssInfo->ucBssIndex);

	if (!prAdapter->rWifiVar.ucApChnlDefFromCfg && prP2pRoleFsmInfo) {
		prP2pConnReqInfo = &(prP2pRoleFsmInfo->rConnReqInfo);
		eSCO = CHNL_EXT_SCN;
		if (cnmGetBssMaxBw(prAdapter, prBssInfo->ucBssIndex) == MAX_BW_40MHZ) {
			/* If BW 40, compare S0 and primary channel freq */
			if (prP2pConnReqInfo->u4CenterFreq1 > prP2pConnReqInfo->u2PriChnlFreq)
				eSCO = CHNL_EXT_SCA;
			else
				eSCO = CHNL_EXT_SCB;
		} else if (cnmGetBssMaxBw(prAdapter, prBssInfo->ucBssIndex) > MAX_BW_40MHZ) {
			/* P: PriChnlFreq, A:CHNL_EXT_SCA, B: CHNL_EXT_SCB, -:BW SPAN 5M */
			/* --|----|--CenterFreq1--|----|-- */
			/* --|----|--CenterFreq1--B----P-- */
			/* --|----|--CenterFreq1--P----A-- */
			i4DeltaBw =  prP2pConnReqInfo->u2PriChnlFreq - prP2pConnReqInfo->u4CenterFreq1;
			u4AndOneSCO = CHNL_EXT_SCB;
			eSCO = CHNL_EXT_SCA;
			if (i4DeltaBw < 0) {
				/* --|----|--CenterFreq1--|----|-- */
				/* --P----A--CenterFreq1--|----|-- */
				/* --B----P--CenterFreq1--|----|-- */
				u4AndOneSCO = CHNL_EXT_SCA;
				eSCO = CHNL_EXT_SCB;
				i4DeltaBw = -i4DeltaBw;
			}
			i4DeltaBw = i4DeltaBw - (CHANNEL_SPAN_20 >> 1);
			if ((i4DeltaBw/CHANNEL_SPAN_20) & 1)
				eSCO = u4AndOneSCO;
		}
	} else {
		/* In this case, the first BSS's SCO is 40MHz and known, so AP can
		 * apply 40MHz bandwidth, but the first BSS's SCO may be changed
		 * later if its Beacon lost timeout occurs
		 */
		if (!(cnmPreferredChannel(prAdapter, &eBand, &ucChannel, &eSCO) &&
		    eSCO != CHNL_EXT_SCN && ucChannel == prBssInfo->ucPrimaryChannel &&
		    eBand == prBssInfo->eBand))
			eSCO = rlmDecideScoForAP(prAdapter, prBssInfo);
	}
	return eSCO;
}

/*----------------------------------------------------------------------------*/
/*!
* \brief: Get AP channel number of Channel Center Frequency Segment 0 from cfg80211 or wifi.cfg
*
* \param[in] prAdapter  Pointer of ADAPTER_T, prBssInfo Pointer of BSS_INFO_T,
*
* \return UINT_8 AP channel number of Channel Center Frequency Segment 0
*/
/*----------------------------------------------------------------------------*/
UINT_8 rlmGetVhtS1ForAP(P_ADAPTER_T prAdapter, P_BSS_INFO_T prBssInfo)
{
	UINT_32 ucFreq1Channel;
	UINT_8 ucPrimaryChannel = prBssInfo->ucPrimaryChannel;
	P_P2P_ROLE_FSM_INFO_T prP2pRoleFsmInfo = (P_P2P_ROLE_FSM_INFO_T) NULL;
	P_P2P_CONNECTION_REQ_INFO_T prP2pConnReqInfo = (P_P2P_CONNECTION_REQ_INFO_T) NULL;

	prP2pRoleFsmInfo = p2pFuncGetRoleByBssIdx(prAdapter, prBssInfo->ucBssIndex);

	if (prBssInfo->ucVhtChannelWidth == VHT_OP_CHANNEL_WIDTH_20_40)
		return 0;

	if (!prAdapter->rWifiVar.ucApChnlDefFromCfg && prP2pRoleFsmInfo) {
		prP2pConnReqInfo = &(prP2pRoleFsmInfo->rConnReqInfo);
		ucFreq1Channel = nicFreq2ChannelNum(prP2pConnReqInfo->u4CenterFreq1 * 1000);
	} else
		ucFreq1Channel = nicGetVhtS1(ucPrimaryChannel, prBssInfo->ucVhtChannelWidth);

	return ucFreq1Channel;
}