pe/sch/sch_beacon_process.c

/*
 * Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
 * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
 *
 * Permission to use, copy, modify, and/or distribute this software for
 * any purpose with or without fee is hereby granted, provided that the
 * above copyright notice and this permission notice appear in all
 * copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * This file sch_beacon_process.cc contains beacon processing related
 * functions
 *
 * Author:      Sandesh Goel
 * Date:        02/25/02
 * History:-
 * Date            Modified by    Modification Information
 * --------------------------------------------------------------------
 *
 */

#include "cds_api.h"
#include "wni_cfg.h"

#include "cfg_ucfg_api.h"
#include "lim_api.h"
#include "utils_api.h"
#include "sch_api.h"

#include "lim_utils.h"
#include "lim_send_messages.h"
#include "rrm_api.h"
#include "lim_mlo.h"

#ifdef FEATURE_WLAN_DIAG_SUPPORT
#include "host_diag_core_log.h"
#endif /* FEATURE_WLAN_DIAG_SUPPORT */

#include "wma.h"

#include "wlan_lmac_if_def.h"
#include "wlan_reg_services_api.h"
#include "wlan_mlo_mgr_sta.h"
#include "wlan_mlme_main.h"
#include <wlan_mlo_mgr_link_switch.h>

static void
ap_beacon_process_5_ghz(struct mac_context *mac_ctx, uint8_t *rx_pkt_info,
			tpSchBeaconStruct bcn_struct,
			tpUpdateBeaconParams bcn_prm, struct pe_session *session,
			uint32_t phy_mode)
{
	tpSirMacMgmtHdr mac_hdr = WMA_GET_RX_MAC_HEADER(rx_pkt_info);

	if (!session->htCapability)
		return;

	if (bcn_struct->chan_freq != session->curr_op_freq)
		return;

	/* 11a (non HT) AP  overlaps or */
	/* HT AP with HT op mode as mixed overlaps. */
	/* HT AP with HT op mode as overlap legacy overlaps. */
	if (!bcn_struct->HTInfo.present
	    || (eSIR_HT_OP_MODE_MIXED == bcn_struct->HTInfo.opMode)
	    || (eSIR_HT_OP_MODE_OVERLAP_LEGACY == bcn_struct->HTInfo.opMode)) {
		lim_update_overlap_sta_param(mac_ctx, mac_hdr->bssId,
					&(session->gLimOverlap11aParams));

		if (session->gLimOverlap11aParams.numSta
		    && !session->gLimOverlap11aParams.protectionEnabled) {
			lim_update_11a_protection(mac_ctx, true, true,
						 bcn_prm, session);
		}
		return;
	}
	/* HT AP with HT20 op mode overlaps. */
	if (eSIR_HT_OP_MODE_NO_LEGACY_20MHZ_HT != bcn_struct->HTInfo.opMode)
		return;

	lim_update_overlap_sta_param(mac_ctx, mac_hdr->bssId,
				     &(session->gLimOverlapHt20Params));

	if (session->gLimOverlapHt20Params.numSta
	    && !session->gLimOverlapHt20Params.protectionEnabled)
		lim_enable_ht20_protection(mac_ctx, true, true,
					   bcn_prm, session);
}

static void
ap_beacon_process_24_ghz(struct mac_context *mac_ctx, uint8_t *rx_pkt_info,
			 tpSchBeaconStruct bcn_struct,
			 tpUpdateBeaconParams bcn_prm, struct pe_session *session,
			 uint32_t phy_mode)
{
	tpSirMacMgmtHdr mac_hdr = WMA_GET_RX_MAC_HEADER(rx_pkt_info);
	bool tmp_exp = false;
	/* We are 11G AP. */
	if ((phy_mode == WNI_CFG_PHY_MODE_11G) &&
	    (false == session->htCapability)) {
		if (bcn_struct->chan_freq != session->curr_op_freq)
			return;

		tmp_exp = (!bcn_struct->erpPresent &&
			   !bcn_struct->HTInfo.present) ||
			    /* if erp not present then  11B AP overlapping */
			  (!mac_ctx->mlme_cfg->sta.ignore_peer_erp_info &&
			   bcn_struct->erpPresent &&
			   (bcn_struct->erpIEInfo.useProtection ||
			    bcn_struct->erpIEInfo.nonErpPresent));
		if (!tmp_exp)
			return;
#ifdef FEATURE_WLAN_ESE
		if (wlan_cm_get_ese_assoc(mac_ctx->pdev, session->vdev_id))
			pe_info("[INFOLOG]ESE 11g erpPresent=%d useProtection=%d nonErpPresent=%d",
				bcn_struct->erpPresent,
				bcn_struct->erpIEInfo.useProtection,
				bcn_struct->erpIEInfo.nonErpPresent);
#endif
		lim_enable_overlap11g_protection(mac_ctx, bcn_prm,
						 mac_hdr, session);
		return;
	}
	/* handling the case when HT AP has overlapping legacy BSS. */
	if (!session->htCapability)
		return;

	if (bcn_struct->chan_freq != session->curr_op_freq)
		return;

	tmp_exp = (!bcn_struct->erpPresent && !bcn_struct->HTInfo.present) ||
		    /* if erp not present then  11B AP overlapping */
		   (!mac_ctx->mlme_cfg->sta.ignore_peer_erp_info &&
		    bcn_struct->erpPresent &&
		    (bcn_struct->erpIEInfo.useProtection ||
		     bcn_struct->erpIEInfo.nonErpPresent));
	if (tmp_exp) {
#ifdef FEATURE_WLAN_ESE
		if (wlan_cm_get_ese_assoc(mac_ctx->pdev, session->vdev_id)) {
			pe_info("[INFOLOG]ESE 11g erpPresent=%d useProtection=%d nonErpPresent=%d",
				bcn_struct->erpPresent,
				bcn_struct->erpIEInfo.useProtection,
				bcn_struct->erpIEInfo.nonErpPresent);
		}
#endif
		lim_enable_overlap11g_protection(mac_ctx, bcn_prm,
						 mac_hdr, session);
	}
	/* 11g device overlaps */
	tmp_exp = bcn_struct->erpPresent
		&& !(bcn_struct->erpIEInfo.useProtection
		     || bcn_struct->erpIEInfo.nonErpPresent)
		&& !(bcn_struct->HTInfo.present);
	if (tmp_exp) {
		lim_update_overlap_sta_param(mac_ctx, mac_hdr->bssId,
					     &(session->gLimOverlap11gParams));

		if (session->gLimOverlap11gParams.numSta
		    && !session->gLimOverlap11gParams.protectionEnabled)
			lim_enable_ht_protection_from11g(mac_ctx, true, true,
							 bcn_prm, session);
	}
	/* ht device overlaps.
	 * here we will check for HT related devices only which might need
	 * protection. check for 11b and 11g is already done in the previous
	 * blocks. so we will not check for HT operating mode as MIXED.
	 */
	if (!bcn_struct->HTInfo.present)
		return;

	/*
	 * if we are not already in mixed mode or legacy mode as HT operating
	 * mode and received beacon has HT operating mode as legacy then we need
	 * to enable protection from 11g station. we don't need protection from
	 * 11b because if that's needed then our operating mode would have
	 * already been set to legacy in the previous blocks.
	 */
	if ((eSIR_HT_OP_MODE_OVERLAP_LEGACY == bcn_struct->HTInfo.opMode) &&
		!mac_ctx->mlme_cfg->sap_protection_cfg.ignore_peer_ht_opmode) {
		if (eSIR_HT_OP_MODE_OVERLAP_LEGACY == mac_ctx->lim.gHTOperMode
		    || eSIR_HT_OP_MODE_MIXED == mac_ctx->lim.gHTOperMode)
			return;
		lim_update_overlap_sta_param(mac_ctx, mac_hdr->bssId,
					     &(session->gLimOverlap11gParams));
		if (session->gLimOverlap11gParams.numSta
		    && !session->gLimOverlap11gParams.protectionEnabled)
			lim_enable_ht_protection_from11g(mac_ctx, true, true,
							 bcn_prm, session);
		return;
	}

	if (eSIR_HT_OP_MODE_NO_LEGACY_20MHZ_HT == bcn_struct->HTInfo.opMode) {
		lim_update_overlap_sta_param(mac_ctx, mac_hdr->bssId,
					     &(session->gLimOverlapHt20Params));
		if (session->gLimOverlapHt20Params.numSta
		    && !session->gLimOverlapHt20Params.protectionEnabled)
			lim_enable_ht20_protection(mac_ctx, true, true,
						   bcn_prm, session);
	}
}

/**
 * ap_beacon_process() - processes incoming beacons
 *
 * @mac_ctx:         mac global context
 * @rx_pkt_info:     incoming beacon packet
 * @bcn_struct:      beacon struct
 * @bcn_prm:         beacon params
 * @session:         pe session entry
 *
 * Return: void
 */
static void
ap_beacon_process(struct mac_context *mac_ctx, uint8_t *rx_pkt_info,
		  tpSchBeaconStruct bcn_struct,
		  tpUpdateBeaconParams bcn_prm, struct pe_session *session)
{
	uint32_t phy_mode;
	enum reg_wifi_band rf_band = REG_BAND_UNKNOWN;
	/* Get RF band from session */
	rf_band = session->limRFBand;

	lim_get_phy_mode(mac_ctx, &phy_mode, session);

	if (REG_BAND_5G == rf_band)
		ap_beacon_process_5_ghz(mac_ctx, rx_pkt_info, bcn_struct,
					bcn_prm, session, phy_mode);
	else if (REG_BAND_2G == rf_band)
		ap_beacon_process_24_ghz(mac_ctx, rx_pkt_info, bcn_struct,
					 bcn_prm, session, phy_mode);
}

/* -------------------------------------------------------------------- */

/*
 * sch_bcn_process_sta() - Process the received beacon frame for sta
 * @mac_ctx:        mac_ctx
 * @bcn:            beacon struct
 * @rx_pkt_info:    received packet info
 * @session:        pe session pointer
 * @beaconParams:   update beacon params
 * @sendProbeReq:   out flag to indicate if probe rsp is to be sent
 * @pMh:            mac header
 *
 * Process the received beacon frame for sta
 *
 * Return: success of failure of operation
 */
static bool
sch_bcn_process_sta(struct mac_context *mac_ctx,
			       tpSchBeaconStruct bcn,
			       uint8_t *rx_pkt_info,
			       struct pe_session *session,
			       tUpdateBeaconParams *beaconParams,
			       uint8_t *sendProbeReq, tpSirMacMgmtHdr pMh)
{
	uint32_t bi;
	tpDphHashNode sta = NULL;
	QDF_STATUS status;

	/*
	 *  This handles two cases:
	 *  -- Infra STA receiving beacons from AP
	 */

	/**
	 * This is the Beacon received from the AP  we're currently associated
	 * with. Check if there are any changes in AP's capabilities
	 */
	if (bcn->chan_freq != session->curr_op_freq) {
		pe_err("Channel Change freq from %d --> %d - Ignoring beacon!",
		       session->curr_op_freq, bcn->chan_freq);
		return false;
	}

	/*
	 * Ignore bcn as channel switch IE present and csa offload is enabled,
	 * as in CSA offload enabled case FW will send Event to switch channel
	 */
	if (bcn->channelSwitchPresent && wma_is_csa_offload_enabled()) {
		pe_err_rl("Ignore bcn as channel switch IE present and csa offload is enabled");
		return false;
	}

	lim_detect_change_in_ap_capabilities(mac_ctx, bcn, session, true);
	beaconParams->bss_idx = session->vdev_id;
	qdf_mem_copy((uint8_t *) &session->lastBeaconTimeStamp,
			(uint8_t *) bcn->timeStamp, sizeof(uint64_t));
	session->currentBssBeaconCnt++;
	if (session->bcon_dtim_period != bcn->tim.dtimPeriod) {
		session->bcon_dtim_period = bcn->tim.dtimPeriod;
		lim_send_set_dtim_period(mac_ctx, bcn->tim.dtimPeriod,
				session);
	}
	MTRACE(mac_trace(mac_ctx, TRACE_CODE_RX_MGMT_TSF,
	       session->peSessionId, bcn->timeStamp[0]));
	MTRACE(mac_trace(mac_ctx, TRACE_CODE_RX_MGMT_TSF,
	       session->peSessionId, bcn->timeStamp[1]));

	/* Read beacon interval session Entry */
	bi = session->beaconParams.beaconInterval;
	if (bi != bcn->beaconInterval) {
		pe_debug("Beacon interval changed from %d to %d",
		       bcn->beaconInterval, bi);

		bi = bcn->beaconInterval;
		session->beaconParams.beaconInterval = (uint16_t) bi;
		beaconParams->paramChangeBitmap |= PARAM_BCN_INTERVAL_CHANGED;
		beaconParams->beaconInterval = (uint16_t) bi;
	}

	if (bcn->cfPresent) {
		if (!cfg_in_range(CFG_CFP_PERIOD, bcn->cfParamSet.cfpPeriod)) {
			pe_err("Error in setting CFG item CFP Period");
			return false;
		}
		mac_ctx->mlme_cfg->rates.cfp_period = bcn->cfParamSet.cfpPeriod;
	}

	/* No need to send DTIM Period and Count to HAL/SMAC */
	/* SMAC already parses TIM bit. */
	if (bcn->timPresent) {
		if (cfg_in_range(CFG_DTIM_PERIOD, bcn->tim.dtimPeriod))
			mac_ctx->mlme_cfg->sap_cfg.dtim_interval =
						bcn->tim.dtimPeriod;
	}

	if (mac_ctx->lim.gLimProtectionControl !=
	    MLME_FORCE_POLICY_PROTECTION_DISABLE)
		lim_decide_sta_protection(mac_ctx, bcn, beaconParams, session);

	if (bcn->erpPresent) {
		if (bcn->erpIEInfo.barkerPreambleMode)
			lim_enable_short_preamble(mac_ctx, false,
						  beaconParams, session);
		else
			lim_enable_short_preamble(mac_ctx, true,
						  beaconParams, session);
	}
	lim_update_short_slot(mac_ctx, bcn, beaconParams, session);

	sta = dph_get_hash_entry(mac_ctx, DPH_STA_HASH_INDEX_PEER,
				    &session->dph.dphHashTable);
	if ((bcn->wmeEdcaPresent && session->limWmeEnabled) ||
	    (bcn->edcaPresent && session->limQosEnabled)) {
		if (bcn->edcaParams.qosInfo.count !=
		    session->gLimEdcaParamSetCount) {
			qdf_mem_copy(&sta->qos.peer_edca_params,
				     &bcn->edcaParams,
				     sizeof(bcn->edcaParams));
			status = sch_beacon_edca_process(mac_ctx,
							 &bcn->edcaParams,
							 session);
			if (QDF_IS_STATUS_ERROR(status)) {
				pe_err("EDCA parameter processing error");
			} else if (sta) {
				/* If needed, downgrade the EDCA parameters */
				lim_set_active_edca_params(mac_ctx,
					session->gLimEdcaParams, session);
				lim_send_edca_params(mac_ctx,
					session->gLimEdcaParamsActive,
					session->vdev_id, false);
				sch_qos_concurrency_update();
			} else {
				pe_err("Self Entry missing in Hash Table");
			}
		}
		return true;
	}

	if ((bcn->qosCapabilityPresent && session->limQosEnabled)
	    && (bcn->qosCapability.qosInfo.count !=
		session->gLimEdcaParamSetCount))
		*sendProbeReq = true;

	return true;
}

#ifdef WLAN_FEATURE_11AX_BSS_COLOR
static void
sch_bcn_update_he_ies(struct mac_context *mac_ctx, tpDphHashNode sta_ds,
				struct pe_session *session, tpSchBeaconStruct bcn,
				tpSirMacMgmtHdr mac_hdr)
{
	uint8_t session_bss_col_disabled_flag;
	bool anything_changed = false;

	if (session->is_session_obss_color_collision_det_enabled)
		return;

	if (session->he_op.present && bcn->he_op.present) {
		if (bcn->vendor_he_bss_color_change.present &&
				(session->he_op.bss_color !=
				 bcn->vendor_he_bss_color_change.new_color)) {
			pe_debug("bss color changed from [%d] to [%d]",
				session->he_op.bss_color,
				bcn->vendor_he_bss_color_change.new_color);
			session->he_op.bss_color =
				bcn->vendor_he_bss_color_change.new_color;
			anything_changed = true;
		}
		session_bss_col_disabled_flag = session->he_op.bss_col_disabled;
		if (session_bss_col_disabled_flag !=
				bcn->he_op.bss_col_disabled) {
			pe_debug("color disable flag changed from [%d] to [%d]",
				session->he_op.bss_col_disabled,
				bcn->he_op.bss_col_disabled);
			session->he_op.bss_col_disabled =
				bcn->he_op.bss_col_disabled;
			anything_changed = true;
		}
	}
	if (anything_changed)
		lim_send_he_ie_update(mac_ctx, session);
}
#else
static void
sch_bcn_update_he_ies(struct mac_context *mac_ctx, tpDphHashNode sta_ds,
				struct pe_session *session, tpSchBeaconStruct bcn,
				tpSirMacMgmtHdr mac_hdr)
{
	return;
}
#endif

static void
sch_bcn_update_opmode_change(struct mac_context *mac_ctx, tpDphHashNode sta_ds,
			     struct pe_session *session, tpSchBeaconStruct bcn,
			     tpSirMacMgmtHdr mac_hdr)
{
	enum phy_ch_width ch_bw;
	enum phy_ch_width ch_width = CH_WIDTH_20MHZ;
	tDot11fIEVHTCaps *vht_caps = NULL;
	tDot11fIEVHTOperation *vht_op = NULL;
	uint8_t bcn_vht_chwidth = 0;
	bool is_40 = false;

	/*
	 * Ignore opmode change during channel change The opmode will be updated
	 * with the beacons on new channel once the AP move to new channel.
	 */
	if (session->ch_switch_in_progress) {
		pe_debug("Ignore opmode change as channel switch is in progress");
		return;
	}
	if (bcn->eht_op.eht_op_information_present) {
		pe_debug("Ignore opmode change as there is EHT operation information");
		return;
	}

	if (bcn->VHTCaps.present) {
		vht_caps = &bcn->VHTCaps;
		vht_op = &bcn->VHTOperation;
	} else if (bcn->vendor_vht_ie.VHTCaps.present) {
		vht_caps = &bcn->vendor_vht_ie.VHTCaps;
		vht_op = &bcn->vendor_vht_ie.VHTOperation;
	}
	if (!session->vhtCapability ||
	    !(bcn->OperatingMode.present ||
	      (vht_op && vht_op->present && vht_caps)))
		return;

	is_40 = bcn->HTInfo.present ?
			bcn->HTInfo.recommendedTxWidthSet : false;

	if (bcn->OperatingMode.present) {
		pe_debug("OMN IE is present in the beacon, update NSS/Ch width");
		lim_update_nss(mac_ctx, sta_ds, bcn->OperatingMode.rxNSS,
			       session);
		ch_width = bcn->OperatingMode.chanWidth;
	} else {
		bcn_vht_chwidth = lim_get_vht_ch_width(vht_caps, vht_op,
						       &bcn->HTInfo);
		ch_width =
			lim_convert_vht_chwidth_to_phy_chwidth(bcn_vht_chwidth,
							       is_40);
	}
	lim_update_channel_width(mac_ctx, sta_ds, session, ch_width, &ch_bw);
}

#ifdef WLAN_FEATURE_SR
/**
 * lim_detect_change_in_srp() - Detect change in SRP IE
 * of the beacon
 *
 * @mac_ctx: global mac context
 * @sta: pointer to sta node
 * @session: pointer to LIM session
 * @bcn: beacon from associated AP
 *
 * Detect change in SRP IE of the beacon and update the params
 * accordingly.
 *
 * Return: None
 */
static void lim_detect_change_in_srp(struct mac_context *mac_ctx,
				     tpDphHashNode sta,
				     struct pe_session *session,
				     tpSchBeaconStruct bcn)
{
	tDot11fIEspatial_reuse sr_ie;
	int32_t ret = 0;

	sr_ie = sta->parsed_ies.srp_ie;
	if (sr_ie.present || bcn->srp_ie.present) {
		ret = qdf_mem_cmp(&sr_ie, &bcn->srp_ie,
				  sizeof(tDot11fIEspatial_reuse));

		if (ret) {
			/*
			 * If SRP IE has changes, update the new params.
			 */
			sta->parsed_ies.srp_ie = bcn->srp_ie;
			lim_update_vdev_sr_elements(session, sta);

			lim_handle_sr_cap(session->vdev,
					  SR_REASON_CODE_BCN_IE_CHANGE);
		}
	}
}
#else
static void lim_detect_change_in_srp(struct mac_context *mac_ctx,
				     tpDphHashNode sta,
				     struct pe_session *session,
				     tpSchBeaconStruct bcn)
{
}
#endif

static void
sch_bcn_process_sta_opmode(struct mac_context *mac_ctx,
			    tpSchBeaconStruct bcn,
			    uint8_t *rx_pkt_info,
			    struct pe_session *session,
			    tUpdateBeaconParams *beaconParams,
			    uint8_t *sendProbeReq, tpSirMacMgmtHdr pMh)
{
	tpDphHashNode sta = NULL;
	uint16_t aid;

	/* check for VHT capability */
	sta = dph_lookup_hash_entry(mac_ctx, pMh->sa, &aid,
			&session->dph.dphHashTable);
	if (!sta)
		return;
	sch_bcn_update_opmode_change(mac_ctx, sta, session, bcn, pMh);
	sch_bcn_update_he_ies(mac_ctx, sta, session, bcn, pMh);
	lim_detect_change_in_srp(mac_ctx, sta, session, bcn);
	return;
}

/**
 * get_local_power_constraint_beacon() - extracts local constraint
 * from beacon
 * @bcn: beacon structure
 * @local_constraint: local constraint pointer
 * @is_power_constraint_abs: is power constraint absolute
 *
 * Return: None
 */
#ifdef FEATURE_WLAN_ESE
static void get_local_power_constraint_beacon(
		tpSchBeaconStruct bcn,
		int8_t *local_constraint,
		bool *is_power_constraint_abs)
{
	if (bcn->eseTxPwr.present) {
		*local_constraint = bcn->eseTxPwr.power_limit;
		*is_power_constraint_abs = true;
	}
}
#else
static void get_local_power_constraint_beacon(
		tpSchBeaconStruct bcn,
		int8_t *local_constraint,
		bool *is_power_constraint_abs)
{

}
#endif

static void __sch_beacon_process_for_session(struct mac_context *mac_ctx,
					     tpSchBeaconStruct bcn,
					     uint8_t *rx_pkt_info,
					     struct pe_session *session)
{
	tUpdateBeaconParams beaconParams;
	uint8_t sendProbeReq = false;
	tpSirMacMgmtHdr pMh = WMA_GET_RX_MAC_HEADER(rx_pkt_info);
	int8_t local_constraint = 0;
	uint32_t chan_freq = 0;
	struct vdev_mlme_obj *mlme_obj;
	struct wlan_lmac_if_reg_tx_ops *tx_ops;
	bool ap_constraint_change = false, tpe_change = false;
	bool allow_tpc = false;
	int8_t regMax = 0, maxTxPower = 0;
	QDF_STATUS status;
	bool skip_tpe = false, is_sap_go_switched_ch;
	enum reg_6g_ap_type pwr_type_6g;
	uint8_t bpcc;
	bool cu_flag = true;
	bool is_power_constraint_abs = false;

	if (mlo_is_mld_sta(session->vdev)) {
		cu_flag = false;
		status = lim_get_bpcc_from_mlo_ie(bcn, &bpcc);
		if (QDF_IS_STATUS_SUCCESS(status))
			cu_flag = lim_check_cu_happens(session->vdev, bpcc);
		lim_process_ml_reconfig(mac_ctx, session, rx_pkt_info);
	}

	if (!cu_flag)
		return;

	qdf_mem_zero(&beaconParams, sizeof(tUpdateBeaconParams));
	beaconParams.paramChangeBitmap = 0;

	if (LIM_IS_STA_ROLE(session)) {
		is_sap_go_switched_ch =
			wlan_vdev_mlme_is_sap_go_move_before_sta(session->vdev);
		if (is_sap_go_switched_ch)
			policy_mgr_sta_sap_dfs_enforce_scc(mac_ctx->psoc,
							   session->vdev_id);
		if (false == sch_bcn_process_sta(mac_ctx, bcn, rx_pkt_info,
						 session, &beaconParams,
						 &sendProbeReq, pMh))
			return;
	}

	/*
	 * For vht session, if opermode ie or vht oper IE is present
	 * bandwidth change will be taken care using these vht IEs.
	 */
	if (!(session->vhtCapability && (bcn->OperatingMode.present ||
	   bcn->VHTOperation.present)) && session->htCapability &&
	   bcn->HTInfo.present)
		lim_update_sta_run_time_ht_switch_chnl_params(mac_ctx,
						&bcn->HTInfo, session);

	if (LIM_IS_STA_ROLE(session))
		sch_bcn_process_sta_opmode(mac_ctx, bcn, rx_pkt_info, session,
					    &beaconParams, &sendProbeReq, pMh);

	mlme_obj = wlan_vdev_mlme_get_cmpt_obj(session->vdev);
	if (!mlme_obj) {
		pe_err("vdev component object is NULL");
		return;
	}

	if (!wlan_reg_is_6ghz_chan_freq(bcn->chan_freq)) {
		skip_tpe = wlan_mlme_skip_tpe(mac_ctx->psoc);
	} else {
		if (!bcn->countryInfoParam.countryString[0]) {
			pe_err("Channel is 6G but country IE not present");
			return;
		}
		if (bcn->he_op.oper_info_6g_present) {
			session->ap_defined_power_type_6g =
					bcn->he_op.oper_info_6g.info.reg_info;
			if (session->ap_defined_power_type_6g < REG_INDOOR_AP ||
			    session->ap_defined_power_type_6g >
			    REG_MAX_SUPP_AP_TYPE) {
				session->ap_defined_power_type_6g =
						REG_CURRENT_MAX_AP_TYPE;
				pe_debug("AP power type is invalid, defaulting to MAX_AP_TYPE");
			}
		} else {
			pe_debug("AP power type is null, defaulting to MAX_AP_TYPE");
			session->ap_defined_power_type_6g =
						REG_CURRENT_MAX_AP_TYPE;
		}

		status = wlan_reg_get_best_6g_power_type(
				mac_ctx->psoc, mac_ctx->pdev, &pwr_type_6g,
				session->ap_defined_power_type_6g,
				bcn->chan_freq);
		if (QDF_IS_STATUS_ERROR(status))
			return;

		session->best_6g_power_type = pwr_type_6g;
		mlme_set_best_6g_power_type(session->vdev, pwr_type_6g);
	}

	/*
	 * STA LPI + SAP VLP is supported. For this STA should operate in VLP
	 * power level of the SAP.
	 * If STA is operating in VLP power of SAP, do not update STA power.
	 */
	if (wlan_reg_is_ext_tpc_supported(mac_ctx->psoc) &&
	    !session->sta_follows_sap_power) {
		tx_ops = wlan_reg_get_tx_ops(mac_ctx->psoc);

		lim_parse_tpe_ie(mac_ctx, session, bcn->transmit_power_env,
				 bcn->num_transmit_power_env, &bcn->he_op,
				 &tpe_change);

		if (mac_ctx->mlme_cfg->sta.allow_tpc_from_ap) {
			get_local_power_constraint_beacon(
						bcn, &local_constraint,
						&is_power_constraint_abs);

			if (mac_ctx->rrm.rrmPEContext.rrmEnable &&
			    bcn->powerConstraintPresent) {
				local_constraint =
				bcn->localPowerConstraint.localPowerConstraints;
				is_power_constraint_abs = false;
			}
			allow_tpc = true;
		}

		if (allow_tpc && local_constraint !=
		    mlme_obj->reg_tpc_obj.ap_constraint_power) {
			mlme_obj->reg_tpc_obj.ap_constraint_power =
							local_constraint;
			mlme_obj->reg_tpc_obj.is_power_constraint_abs =
							is_power_constraint_abs;
			ap_constraint_change = true;
		}

		if (ap_constraint_change || (tpe_change && !skip_tpe)) {
			lim_calculate_tpc(mac_ctx, session);

			if (tx_ops->set_tpc_power)
				tx_ops->set_tpc_power(mac_ctx->psoc,
						      session->vdev_id,
						      &mlme_obj->reg_tpc_obj);
		}
	} else if (!session->sta_follows_sap_power) {
		/* Obtain the Max Tx power for the current regulatory  */
		regMax = wlan_reg_get_channel_reg_power_for_freq(
					mac_ctx->pdev, session->curr_op_freq);
		local_constraint = regMax;

		if (mac_ctx->mlme_cfg->sta.allow_tpc_from_ap) {
			get_local_power_constraint_beacon(
						bcn, &local_constraint,
						&is_power_constraint_abs);

			if (mac_ctx->rrm.rrmPEContext.rrmEnable &&
			    bcn->powerConstraintPresent) {
				local_constraint = regMax;
				local_constraint -=
				bcn->localPowerConstraint.localPowerConstraints;
				is_power_constraint_abs = false;

			}
		}
		mlme_obj->reg_tpc_obj.is_power_constraint_abs =
						is_power_constraint_abs;
		mlme_obj->reg_tpc_obj.reg_max[0] = regMax;
		mlme_obj->reg_tpc_obj.ap_constraint_power = local_constraint;
		mlme_obj->reg_tpc_obj.frequency[0] = session->curr_op_freq;

		maxTxPower = lim_get_max_tx_power(mac_ctx, mlme_obj);

		/* If maxTxPower is increased or decreased */
		if (maxTxPower != session->maxTxPower) {
			pe_debug("New maxTx power %d, old pwr %d",
				 maxTxPower, session->maxTxPower);
			pe_debug("regMax %d, local %d", regMax,
				 local_constraint);
			status = lim_send_set_max_tx_power_req(mac_ctx,
							       maxTxPower,
							       session);
			if (status == QDF_STATUS_SUCCESS)
				session->maxTxPower = maxTxPower;
		}
	}
	/* Indicate to LIM that Beacon is received */
	if (bcn->HTInfo.present) {
		chan_freq = wlan_reg_legacy_chan_to_freq(mac_ctx->pdev,
							 bcn->HTInfo.primaryChannel);
		lim_received_hb_handler(mac_ctx, chan_freq, session);
	} else
		lim_received_hb_handler(mac_ctx, bcn->chan_freq, session);

	/*
	 * I don't know if any additional IE is required here. Currently, not
	 * include addIE.
	 */
	if (sendProbeReq)
		lim_send_probe_req_mgmt_frame(mac_ctx, &session->ssId,
			session->bssId, session->curr_op_freq,
			session->self_mac_addr, session->dot11mode, NULL, NULL);

	if ((false == mac_ctx->sap.SapDfsInfo.is_dfs_cac_timer_running)
	    && beaconParams.paramChangeBitmap) {
		pe_debug("Beacon for session[%d] got changed param change bitmap: 0x%x",
			 session->peSessionId, beaconParams.paramChangeBitmap);
		lim_send_beacon_params(mac_ctx, &beaconParams, session);
	}

	if ((session->opmode == QDF_P2P_CLIENT_MODE) &&
	    session->send_p2p_conf_frame) {
		lim_p2p_oper_chan_change_confirm_action_frame(mac_ctx,
							      session->bssId,
							      session);
		session->send_p2p_conf_frame = false;
	}

	lim_process_beacon_eht(mac_ctx, session, bcn);
	lim_process_bcn_prb_rsp_t2lm(mac_ctx, session, bcn);
}

#ifdef WLAN_FEATURE_11AX_BSS_COLOR
static void ap_update_bss_color_info(struct mac_context *mac_ctx,
						struct pe_session *session,
						uint8_t bss_color)
{
	if (!session)
		return;

	if (bss_color < 1 || bss_color > 63) {
		pe_warn("Invalid BSS color");
		return;
	}

	session->bss_color_info[bss_color - 1].seen_count++;
	session->bss_color_info[bss_color - 1].timestamp =
					qdf_get_system_timestamp();
}

static uint8_t ap_get_new_bss_color(struct mac_context *mac_ctx, struct pe_session *session)
{
	int i;
	uint8_t new_bss_color;
	struct bss_color_info color_info;
	qdf_time_t cur_timestamp;

	if (!session)
		return 0;

	color_info = session->bss_color_info[0];
	new_bss_color = 0;
	cur_timestamp = qdf_get_system_timestamp();
	for (i = 1; i < MAX_BSS_COLOR_VALUE; i++) {
		if (session->bss_color_info[i].seen_count == 0) {
			new_bss_color = i + 1;
			return new_bss_color;
		}

		if (color_info.seen_count >
				session->bss_color_info[i].seen_count &&
				(cur_timestamp - session->bss_color_info[i].
					timestamp) > TIME_BEACON_NOT_UPDATED) {
			color_info = session->bss_color_info[i];
			new_bss_color = i + 1;
		}
	}
	pe_debug("new bss color: %d", new_bss_color);
	return new_bss_color;
}

static void sch_check_bss_color_ie(struct mac_context *mac_ctx,
					struct pe_session *ap_session,
					tSchBeaconStruct *bcn,
					tUpdateBeaconParams *bcn_prm)
{
	/* check bss color in the beacon */
	if (ap_session->he_op.present && !ap_session->he_op.bss_color) {
		if (bcn->he_op.present &&
			(bcn->he_op.bss_color ==
					ap_session->he_op.bss_color)) {
			ap_session->he_op.bss_col_disabled = 1;
			bcn_prm->paramChangeBitmap |=
						PARAM_BSS_COLOR_CHANGED;
			ap_session->he_bss_color_change.countdown =
						BSS_COLOR_SWITCH_COUNTDOWN;
			ap_session->he_bss_color_change.new_color =
					ap_get_new_bss_color(mac_ctx,
								ap_session);
			ap_session->he_op.bss_color = ap_session->
						he_bss_color_change.new_color;
			bcn_prm->bss_color = ap_session->he_op.bss_color;
			bcn_prm->bss_color_disabled =
					ap_session->he_op.bss_col_disabled;
			ap_session->bss_color_changing = 1;
		} else {
			/* update info for the bss color */
			if (bcn->he_op.present)
				ap_update_bss_color_info(mac_ctx,
						ap_session,
						bcn->he_op.bss_color);
		}
	}
}

#else
static void  sch_check_bss_color_ie(struct mac_context *mac_ctx,
					struct pe_session *ap_session,
					tSchBeaconStruct *bcn,
					tUpdateBeaconParams *bcn_prm)
{
}
#endif

void sch_beacon_process_for_ap(struct mac_context *mac_ctx,
				uint8_t session_id,
				uint8_t *rx_pkt_info,
				tSchBeaconStruct *bcn)
{
	struct pe_session *ap_session;
	tUpdateBeaconParams bcn_prm;

	if (!bcn || !rx_pkt_info) {
		pe_debug("bcn %pK or rx_pkt_info %pKis NULL",
			 bcn, rx_pkt_info);
		return;
	}

	ap_session = pe_find_session_by_session_id(mac_ctx, session_id);
	if (!ap_session)
		return;

	if (!LIM_IS_AP_ROLE(ap_session))
		return;

	qdf_mem_zero(&bcn_prm, sizeof(tUpdateBeaconParams));
	bcn_prm.paramChangeBitmap = 0;

	bcn_prm.bss_idx = ap_session->vdev_id;

	if (!ap_session->is_session_obss_color_collision_det_enabled)
		sch_check_bss_color_ie(mac_ctx, ap_session,
					bcn, &bcn_prm);

	if ((ap_session->gLimProtectionControl !=
	     MLME_FORCE_POLICY_PROTECTION_DISABLE) &&
	    !ap_session->is_session_obss_offload_enabled)
		ap_beacon_process(mac_ctx, rx_pkt_info,
					bcn, &bcn_prm, ap_session);

	if ((false == mac_ctx->sap.SapDfsInfo.is_dfs_cac_timer_running)
	    && bcn_prm.paramChangeBitmap) {
		/* Update the bcn and apply the new settings to HAL */
		sch_set_fixed_beacon_fields(mac_ctx, ap_session);
		pe_debug("Beacon for PE session[%d] got changed",
		       ap_session->peSessionId);
		pe_debug("sending beacon param change bitmap: 0x%x",
		       bcn_prm.paramChangeBitmap);
		lim_send_beacon_params(mac_ctx, &bcn_prm, ap_session);
	}
}

#ifdef WLAN_BCN_RECV_FEATURE
/*
 * sch_send_beacon_report() - To Fill beacon report for
 * each beacon coming from connected peer and sends it
 * to upper layer
 * @mac_ctx: Mac context
 * @beacon_struct: Pointing to beacon structure
 * @session: pointer to the PE session
 *
 * Return: None
 */
static
void sch_send_beacon_report(struct mac_context *mac_ctx,
			    struct sSirProbeRespBeacon *beacon_struct,
			    struct pe_session *session)
{
	struct wlan_beacon_report beacon_report;
	beacon_report_cb sme_bcn_cb;

	sme_bcn_cb = mac_ctx->lim.sme_bcn_rcv_callback;
	if (!sme_bcn_cb)
		return;

	if (!LIM_IS_STA_ROLE(session))
		return;

	if (sir_compare_mac_addr(session->bssId, beacon_struct->bssid)) {
		/* Prepare beacon report from incoming beacon */
		qdf_mem_copy(beacon_report.bssid.bytes, beacon_struct->bssid,
			     sizeof(tSirMacAddr));

		qdf_mem_copy(&beacon_report.time_stamp,
			     &beacon_struct->timeStamp, sizeof(qdf_time_t));
		beacon_report.beacon_interval = beacon_struct->beaconInterval;
		beacon_report.frequency = beacon_struct->chan_freq;

		beacon_report.ssid.length = beacon_struct->ssId.length;
		qdf_mem_copy(&beacon_report.ssid.ssid,
			     &beacon_struct->ssId.ssId,
			     beacon_report.ssid.length);

		beacon_report.boot_time =
				qdf_do_div(qdf_get_monotonic_boottime(),
					   QDF_MC_TIMER_TO_MS_UNIT);

		beacon_report.vdev_id = session->vdev_id;

		/* Send report to upper layer */
		sme_bcn_cb(mac_ctx->hdd_handle, &beacon_report);
	}
}

#else
static inline
void sch_send_beacon_report(struct mac_context *mac_ctx,
			    struct sSirProbeRespBeacon *beacon_struct,
			    struct pe_session *session)
{
}
#endif

/**
 * sch_beacon_process() - process the beacon frame
 * @mac_ctx: mac global context
 * @rx_pkt_info: pointer to buffer descriptor
 * @session: pointer to the PE session
 *
 * Return: None
 */
void
sch_beacon_process(struct mac_context *mac_ctx, uint8_t *rx_pkt_info,
		   struct pe_session *session)
{
	static tSchBeaconStruct bcn;

	if (!session)
		return;

	/*
	 * Drop the beacon/probe response from current connected AP in
	 * below cases to avoid responding to the changes in beacon(e.g. doing
	 * VDEV_RESTART to update to the latest capabilities),
	 * 1. vdev is not in connected state: vdev might be transitioning
	 * 2. Link switch is in progress: Current link or one of the partner
	 *                                links are getting replaced.
	 *
	 * New beacons/probe rsps can be considered once post these operations.
	 */
	if (LIM_IS_STA_ROLE(session) &&
	    (!wlan_cm_is_vdev_connected(session->vdev) ||
	     mlo_mgr_is_link_switch_in_progress(session->vdev))) {
		pe_debug_rl("vdev %d, drop beacon", session->vdev_id);
		return;
	}

	/* Convert the beacon frame into a structure */
	if (sir_convert_beacon_frame2_struct(mac_ctx, (uint8_t *) rx_pkt_info,
		&bcn) != QDF_STATUS_SUCCESS) {
		pe_err_rl("beacon parsing failed");
		return;
	}

	session->dtimPeriod = bcn.tim.dtimPeriod;

	sch_send_beacon_report(mac_ctx, &bcn, session);
	__sch_beacon_process_for_session(mac_ctx, &bcn, rx_pkt_info, session);
}

/**
 * sch_beacon_edca_process(): Process the EDCA parameter set in the received
 * beacon frame
 *
 * @mac_ctx:    mac global context
 * @edca:       reference to edca parameters in beacon struct
 * @session :   pesession entry
 *
 * @return status of operation
 */
QDF_STATUS
sch_beacon_edca_process(struct mac_context *mac, tSirMacEdcaParamSetIE *edca,
			struct pe_session *session)
{
	bool follow_ap_edca;
#ifdef FEATURE_WLAN_DIAG_SUPPORT
	host_log_qos_edca_pkt_type *log_ptr = NULL;
#endif /* FEATURE_WLAN_DIAG_SUPPORT */

	if (!(mac->mlme_cfg)) {
		pe_err("invalid mlme cfg");
		return QDF_STATUS_E_FAILURE;
	}

	follow_ap_edca = mlme_get_follow_ap_edca_flag(session->vdev);

	session->gLimEdcaParamSetCount = edca->qosInfo.count;
	session->gLimEdcaParams[QCA_WLAN_AC_BE] = edca->acbe;
	session->gLimEdcaParams[QCA_WLAN_AC_BK] = edca->acbk;
	session->gLimEdcaParams[QCA_WLAN_AC_VI] = edca->acvi;
	session->gLimEdcaParams[QCA_WLAN_AC_VO] = edca->acvo;

	if (mac->mlme_cfg->edca_params.enable_edca_params && !follow_ap_edca) {
		session->gLimEdcaParams[QCA_WLAN_AC_VO].aci.aifsn =
			mac->mlme_cfg->edca_params.edca_ac_vo.vo_aifs;
		session->gLimEdcaParams[QCA_WLAN_AC_VI].aci.aifsn =
			mac->mlme_cfg->edca_params.edca_ac_vi.vi_aifs;
		session->gLimEdcaParams[QCA_WLAN_AC_BK].aci.aifsn =
			mac->mlme_cfg->edca_params.edca_ac_bk.bk_aifs;
		session->gLimEdcaParams[QCA_WLAN_AC_BE].aci.aifsn =
			mac->mlme_cfg->edca_params.edca_ac_be.be_aifs;

		session->gLimEdcaParams[QCA_WLAN_AC_VO].cw.min =
			mac->mlme_cfg->edca_params.edca_ac_vo.vo_cwmin;
		session->gLimEdcaParams[QCA_WLAN_AC_VI].cw.min =
			mac->mlme_cfg->edca_params.edca_ac_vi.vi_cwmin;
		session->gLimEdcaParams[QCA_WLAN_AC_BK].cw.min =
			mac->mlme_cfg->edca_params.edca_ac_bk.bk_cwmin;
		session->gLimEdcaParams[QCA_WLAN_AC_BE].cw.min =
			mac->mlme_cfg->edca_params.edca_ac_be.be_cwmin;

		session->gLimEdcaParams[QCA_WLAN_AC_VO].cw.max =
			mac->mlme_cfg->edca_params.edca_ac_vo.vo_cwmax;
		session->gLimEdcaParams[QCA_WLAN_AC_VI].cw.max =
			mac->mlme_cfg->edca_params.edca_ac_vi.vi_cwmax;
		session->gLimEdcaParams[QCA_WLAN_AC_BK].cw.max =
			mac->mlme_cfg->edca_params.edca_ac_bk.bk_cwmax;
		session->gLimEdcaParams[QCA_WLAN_AC_BE].cw.max =
			mac->mlme_cfg->edca_params.edca_ac_be.be_cwmax;
	}
#ifdef FEATURE_WLAN_DIAG_SUPPORT
	WLAN_HOST_DIAG_LOG_ALLOC(log_ptr, host_log_qos_edca_pkt_type,
				 LOG_WLAN_QOS_EDCA_C);
	if (log_ptr) {
		log_ptr->aci_be = session->gLimEdcaParams[QCA_WLAN_AC_BE].aci.aci;
		log_ptr->cw_be =
			session->gLimEdcaParams[QCA_WLAN_AC_BE].cw.max << 4
				| session->gLimEdcaParams[QCA_WLAN_AC_BE].cw.min;
		log_ptr->txoplimit_be =
			session->gLimEdcaParams[QCA_WLAN_AC_BE].txoplimit;
		log_ptr->aci_bk =
			session->gLimEdcaParams[QCA_WLAN_AC_BK].aci.aci;
		log_ptr->cw_bk =
			session->gLimEdcaParams[QCA_WLAN_AC_BK].cw.max << 4
				| session->gLimEdcaParams[QCA_WLAN_AC_BK].cw.min;
		log_ptr->txoplimit_bk =
			session->gLimEdcaParams[QCA_WLAN_AC_BK].txoplimit;
		log_ptr->aci_vi =
			session->gLimEdcaParams[QCA_WLAN_AC_VI].aci.aci;
		log_ptr->cw_vi =
			session->gLimEdcaParams[QCA_WLAN_AC_VI].cw.max << 4
				| session->gLimEdcaParams[QCA_WLAN_AC_VI].cw.min;
		log_ptr->txoplimit_vi =
			session->gLimEdcaParams[QCA_WLAN_AC_VI].txoplimit;
		log_ptr->aci_vo =
			session->gLimEdcaParams[QCA_WLAN_AC_VO].aci.aci;
		log_ptr->cw_vo =
			session->gLimEdcaParams[QCA_WLAN_AC_VO].cw.max << 4
				| session->gLimEdcaParams[QCA_WLAN_AC_VO].cw.min;
		log_ptr->txoplimit_vo =
			session->gLimEdcaParams[QCA_WLAN_AC_VO].txoplimit;
	}
	WLAN_HOST_DIAG_LOG_REPORT(log_ptr);
#endif /* FEATURE_WLAN_DIAG_SUPPORT */
	pe_debug("Edca param enabled %d. Updating Local Params to: AC_BE: AIFSN: %d, ACM %d, CWmin %d, CWmax %d, TxOp %d  AC_BK: AIFSN: %d, ACM %d, CWmin %d, CWmax %d, TxOp %d  AC_VI: AIFSN: %d, ACM %d, CWmin %d, CWmax %d, TxOp %d  AC_VO: AIFSN: %d, ACM %d, CWmin %d, CWmax %d, TxOp %d",
		 mac->mlme_cfg->edca_params.enable_edca_params,
		 session->gLimEdcaParams[0].aci.aifsn,
		 session->gLimEdcaParams[0].aci.acm,
		 session->gLimEdcaParams[0].cw.min,
		 session->gLimEdcaParams[0].cw.max,
		 session->gLimEdcaParams[0].txoplimit,
		 session->gLimEdcaParams[1].aci.aifsn,
		 session->gLimEdcaParams[1].aci.acm,
		 session->gLimEdcaParams[1].cw.min,
		 session->gLimEdcaParams[1].cw.max,
		 session->gLimEdcaParams[1].txoplimit,
		 session->gLimEdcaParams[2].aci.aifsn,
		 session->gLimEdcaParams[2].aci.acm,
		 session->gLimEdcaParams[2].cw.min,
		 session->gLimEdcaParams[2].cw.max,
		 session->gLimEdcaParams[2].txoplimit,
		 session->gLimEdcaParams[3].aci.aifsn,
		 session->gLimEdcaParams[3].aci.acm,
		 session->gLimEdcaParams[3].cw.min,
		 session->gLimEdcaParams[3].cw.max,
		 session->gLimEdcaParams[3].txoplimit);

	return QDF_STATUS_SUCCESS;
}

void lim_enable_obss_detection_config(struct mac_context *mac_ctx,
				      struct pe_session *session)
{
	QDF_STATUS status = QDF_STATUS_SUCCESS;

	if (!session) {
		pe_err("Invalid session, protection not enabled");
		return;
	}

	if (session->gLimProtectionControl ==
	    MLME_FORCE_POLICY_PROTECTION_DISABLE) {
		pe_err("protectiond disabled, force policy, session %d",
		       session->smeSessionId);
		return;
	}

	if (mac_ctx->mlme_cfg->obss_ht40.obss_detection_offload_enabled) {
		status = lim_obss_send_detection_cfg(mac_ctx, session, true);
		if (QDF_IS_STATUS_ERROR(status)) {
			pe_err("vdev %d: offload enable failed, trying legacy",
			       session->smeSessionId);
			session->is_session_obss_offload_enabled = false;
		} else {
			pe_debug("vdev %d: offload detection enabled",
				 session->smeSessionId);
			session->is_session_obss_offload_enabled = true;
			lim_obss_send_detection_cfg(mac_ctx, session, true);
		}
	}

	if (!mac_ctx->mlme_cfg->obss_ht40.obss_detection_offload_enabled ||
	    QDF_IS_STATUS_ERROR(status)) {
		status = qdf_mc_timer_start(&session->
					    protection_fields_reset_timer,
					    SCH_PROTECTION_RESET_TIME);
		if (QDF_IS_STATUS_ERROR(status))
			pe_err("vdev %d: start timer failed",
			       session->smeSessionId);
		else
			pe_debug("vdev %d: legacy detection enabled",
				 session->smeSessionId);
	}
}

QDF_STATUS lim_obss_generate_detection_config(struct mac_context *mac_ctx,
					      struct pe_session *session,
					      struct obss_detection_cfg *cfg)
{
	uint32_t phy_mode;
	enum reg_wifi_band rf_band = REG_BAND_UNKNOWN;
	struct obss_detection_cfg *cur_detect;

	if (!mac_ctx || !session || !cfg) {
		pe_err("Invalid params mac_ctx %pK, session %pK, cfg %pK",
			mac_ctx, session, cfg);
		return QDF_STATUS_E_INVAL;
	}

	lim_get_phy_mode(mac_ctx, &phy_mode, session);
	rf_band = session->limRFBand;
	qdf_mem_zero(cfg, sizeof(*cfg));
	cur_detect = &session->current_obss_detection;

	pe_debug("band:%d, phy_mode:%d, ht_cap:%d, ht_oper_mode:%d",
		 rf_band, phy_mode, session->htCapability,
		 mac_ctx->lim.gHTOperMode);
	pe_debug("assoc_sta: 11b:%d, 11g:%d, 11a:%d, ht20:%d",
		 session->gLim11bParams.protectionEnabled,
		 session->gLim11gParams.protectionEnabled,
		 session->gLim11aParams.protectionEnabled,
		 session->gLimHt20Params.protectionEnabled);
	pe_debug("obss: 11b:%d, 11g:%d, 11a:%d, ht20:%d",
		 session->gLimOlbcParams.protectionEnabled,
		 session->gLimOverlap11gParams.protectionEnabled,
		 session->gLimOverlap11aParams.protectionEnabled,
		 session->gLimOverlapHt20Params.protectionEnabled);
	pe_debug("detect: b_ap:%d, b_s:%d, g:%d, a:%d, htl:%d, htm:%d, ht20:%d",
		 cur_detect->obss_11b_ap_detect_mode,
		 cur_detect->obss_11b_sta_detect_mode,
		 cur_detect->obss_11g_ap_detect_mode,
		 cur_detect->obss_11a_detect_mode,
		 cur_detect->obss_ht_legacy_detect_mode,
		 cur_detect->obss_ht_mixed_detect_mode,
		 cur_detect->obss_ht_20mhz_detect_mode);

	if (rf_band == REG_BAND_2G) {
		if ((phy_mode == WNI_CFG_PHY_MODE_11G ||
		    session->htCapability) &&
		    !session->gLim11bParams.protectionEnabled) {
			if (!session->gLimOlbcParams.protectionEnabled &&
			    !session->gLimOverlap11gParams.protectionEnabled) {
				cfg->obss_11b_ap_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
				cfg->obss_11b_sta_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
			} else {
				if (cur_detect->obss_11b_ap_detect_mode ==
				    OBSS_OFFLOAD_DETECTION_PRESENT)
					cfg->obss_11b_ap_detect_mode =
						OBSS_OFFLOAD_DETECTION_ABSENT;
				if (cur_detect->obss_11b_sta_detect_mode ==
				    OBSS_OFFLOAD_DETECTION_PRESENT)
					cfg->obss_11b_sta_detect_mode =
						OBSS_OFFLOAD_DETECTION_ABSENT;
			}
		} else if (session->gLim11bParams.protectionEnabled) {
			session->gLimOlbcParams.protectionEnabled = false;
		}

		if (session->htCapability &&
		    session->cfgProtection.overlapFromllg &&
		    !session->gLim11gParams.protectionEnabled) {
			if (!session->gLimOverlap11gParams.protectionEnabled) {
				cfg->obss_11g_ap_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
				cfg->obss_ht_legacy_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
				cfg->obss_ht_mixed_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
			} else {
				if (cur_detect->obss_11g_ap_detect_mode ==
				    OBSS_OFFLOAD_DETECTION_PRESENT)
					cfg->obss_11g_ap_detect_mode =
						OBSS_OFFLOAD_DETECTION_ABSENT;
				if (cur_detect->obss_ht_legacy_detect_mode ==
				    OBSS_OFFLOAD_DETECTION_PRESENT)
					cfg->obss_ht_legacy_detect_mode =
						OBSS_OFFLOAD_DETECTION_ABSENT;
				if (cur_detect->obss_ht_mixed_detect_mode ==
				    OBSS_OFFLOAD_DETECTION_PRESENT)
					cfg->obss_ht_mixed_detect_mode =
						OBSS_OFFLOAD_DETECTION_ABSENT;
			}
		} else if (session->gLim11gParams.protectionEnabled) {
			session->gLimOverlap11gParams.protectionEnabled = false;
		}

		/* INI related settings */
		if (mac_ctx->mlme_cfg->sta.ignore_peer_erp_info)
			cfg->obss_11b_sta_detect_mode =
				OBSS_OFFLOAD_DETECTION_DISABLED;

		if (mac_ctx->mlme_cfg->sap_protection_cfg.ignore_peer_ht_opmode)
			cfg->obss_ht_legacy_detect_mode =
				OBSS_OFFLOAD_DETECTION_DISABLED;
	}

	if ((rf_band == REG_BAND_5G) && session->htCapability) {
		if (!session->gLim11aParams.protectionEnabled) {
			if (!session->gLimOverlap11aParams.protectionEnabled)
				cfg->obss_11a_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
			else if (cur_detect->obss_11a_detect_mode ==
				 OBSS_OFFLOAD_DETECTION_PRESENT)
					cfg->obss_11a_detect_mode =
						OBSS_OFFLOAD_DETECTION_ABSENT;
		} else {
			session->gLimOverlap11aParams.protectionEnabled = false;
		}
	}

	if (((rf_band == REG_BAND_2G) || (rf_band == REG_BAND_5G)) &&
	    session->htCapability) {

		if (!session->gLimHt20Params.protectionEnabled) {
			if (!session->gLimOverlapHt20Params.protectionEnabled) {
				cfg->obss_ht_20mhz_detect_mode =
					OBSS_OFFLOAD_DETECTION_PRESENT;
			} else if (cur_detect->obss_ht_20mhz_detect_mode ==
				   OBSS_OFFLOAD_DETECTION_PRESENT) {
					cfg->obss_ht_20mhz_detect_mode =
					OBSS_OFFLOAD_DETECTION_ABSENT;
			}
		} else {
			session->gLimOverlapHt20Params.protectionEnabled =
				false;
		}
	}

	pe_debug("b_ap:%d, b_s:%d, g:%d, a:%d, ht_le:%d, ht_m:%d, ht_20:%d",
		 cfg->obss_11b_ap_detect_mode,
		 cfg->obss_11b_sta_detect_mode,
		 cfg->obss_11g_ap_detect_mode,
		 cfg->obss_11a_detect_mode,
		 cfg->obss_ht_legacy_detect_mode,
		 cfg->obss_ht_mixed_detect_mode,
		 cfg->obss_ht_20mhz_detect_mode);

	return QDF_STATUS_SUCCESS;
}

QDF_STATUS lim_obss_send_detection_cfg(struct mac_context *mac_ctx,
				       struct pe_session *session, bool force)
{
	QDF_STATUS status;
	struct obss_detection_cfg obss_cfg;
	struct wmi_obss_detection_cfg_param *req_param;

	if (!session) {
		pe_err("Invalid session");
		return QDF_STATUS_E_INVAL;
	}

	if (!session->is_session_obss_offload_enabled) {
		pe_debug("obss offload protectiond disabled, session %d",
		       session->smeSessionId);
		/* Send success */
		return QDF_STATUS_SUCCESS;
	}

	if (session->gLimProtectionControl ==
	    MLME_FORCE_POLICY_PROTECTION_DISABLE) {
		pe_debug("protectiond disabled, force from policy, session %d",
		       session->smeSessionId);
		/* Send success */
		return QDF_STATUS_SUCCESS;
	}

	status = lim_obss_generate_detection_config(mac_ctx,
						    session,
						    &obss_cfg);
	if (QDF_IS_STATUS_ERROR(status)) {
		pe_err("Failed to generate obss detection cfg, session %d",
		       session->smeSessionId);
		return status;
	}

	if (qdf_mem_cmp(&session->obss_offload_cfg, &obss_cfg, sizeof(obss_cfg))
	    || force) {
		struct scheduler_msg msg = {0};
		req_param = qdf_mem_malloc(sizeof(*req_param));
		if (!req_param)
			return QDF_STATUS_E_NOMEM;
		qdf_mem_copy(&session->obss_offload_cfg, &obss_cfg,
				sizeof(obss_cfg));
		req_param->vdev_id = session->smeSessionId;
		req_param->obss_detect_period_ms = OBSS_DETECTION_PERIOD_MS;
		req_param->obss_11b_ap_detect_mode =
			obss_cfg.obss_11b_ap_detect_mode;
		req_param->obss_11b_sta_detect_mode =
			obss_cfg.obss_11b_sta_detect_mode;
		req_param->obss_11g_ap_detect_mode =
			obss_cfg.obss_11g_ap_detect_mode;
		req_param->obss_11a_detect_mode =
			obss_cfg.obss_11a_detect_mode;
		req_param->obss_ht_legacy_detect_mode =
			obss_cfg.obss_ht_legacy_detect_mode;
		req_param->obss_ht_20mhz_detect_mode =
			obss_cfg.obss_ht_20mhz_detect_mode;
		req_param->obss_ht_mixed_detect_mode =
			obss_cfg.obss_ht_mixed_detect_mode;

		msg.type = WMA_OBSS_DETECTION_REQ;
		msg.bodyptr = req_param;
		msg.reserved = 0;
		status = scheduler_post_message(QDF_MODULE_ID_PE,
						QDF_MODULE_ID_WMA,
						QDF_MODULE_ID_WMA, &msg);
		if (QDF_IS_STATUS_ERROR(status)) {
			qdf_mem_free(req_param);
			return status;
		}
	} else {
		pe_debug("Skipping WMA_OBSS_DETECTION_REQ, force = %d", force);
	}

	return status;
}

QDF_STATUS lim_process_obss_detection_ind(struct mac_context *mac_ctx,
					  struct wmi_obss_detect_info
					  *obss_detection)
{
	QDF_STATUS status;
	uint32_t detect_masks;
	uint32_t reason;
	struct obss_detection_cfg *obss_cfg;
	bool enable;
	struct pe_session *session;
	tUpdateBeaconParams bcn_prm;
	enum reg_wifi_band rf_band = REG_BAND_UNKNOWN;
	struct obss_detection_cfg *cur_detect;

	pe_debug("obss detect ind id %d, reason %d, msk 0x%x, " QDF_MAC_ADDR_FMT,
		 obss_detection->vdev_id, obss_detection->reason,
		 obss_detection->matched_detection_masks,
		 QDF_MAC_ADDR_REF(obss_detection->matched_bssid_addr));

	session = pe_find_session_by_vdev_id(mac_ctx, obss_detection->vdev_id);
	if (!session) {
		pe_err("Failed to get session for id %d",
		       obss_detection->vdev_id);
		return QDF_STATUS_E_INVAL;
	}

	if (!LIM_IS_AP_ROLE(session)) {
		pe_err("session %d is not AP", obss_detection->vdev_id);
		return QDF_STATUS_E_INVAL;
	}

	if (!session->is_session_obss_offload_enabled) {
		pe_err("Offload already disabled for session %d",
		       obss_detection->vdev_id);
		return QDF_STATUS_SUCCESS;
	}

	reason = obss_detection->reason;
	detect_masks = obss_detection->matched_detection_masks;

	if (reason == OBSS_OFFLOAD_DETECTION_PRESENT) {
		enable = true;
	} else if (reason == OBSS_OFFLOAD_DETECTION_ABSENT) {
		enable = false;
	} else if (reason == OBSS_OFFLOAD_DETECTION_DISABLED) {
		/*
		 * Most common reason for this event-type from firmware
		 * is insufficient memory.
		 * Disable offload OBSS detection and enable legacy-way
		 * of detecting OBSS by parsing beacons.
		 **/
		session->is_session_obss_offload_enabled = false;
		pe_err("FW indicated obss offload disabled");
		pe_err("Enabling host based detection, session %d",
		       obss_detection->vdev_id);

		status = qdf_mc_timer_start(&session->
					    protection_fields_reset_timer,
					    SCH_PROTECTION_RESET_TIME);
		if (QDF_IS_STATUS_ERROR(status))
			pe_err("cannot start protection reset timer");

		return QDF_STATUS_SUCCESS;
	} else {
		pe_err("Invalid reason %d, session %d",
		       obss_detection->reason,
		       obss_detection->vdev_id);
		return QDF_STATUS_E_INVAL;
	}

	rf_band = session->limRFBand;
	qdf_mem_zero(&bcn_prm, sizeof(bcn_prm));
	obss_cfg = &session->obss_offload_cfg;
	cur_detect = &session->current_obss_detection;

	if (OBSS_DETECTION_IS_11B_AP(detect_masks)) {
		if (reason != obss_cfg->obss_11b_ap_detect_mode ||
		    rf_band != REG_BAND_2G)
			goto wrong_detection;

		lim_enable11g_protection(mac_ctx, enable, true,
					 &bcn_prm, session);
		cur_detect->obss_11b_ap_detect_mode = reason;
	}
	if (OBSS_DETECTION_IS_11B_STA(detect_masks)) {
		if (reason != obss_cfg->obss_11b_sta_detect_mode ||
		    rf_band != REG_BAND_2G)
			goto wrong_detection;

		lim_enable11g_protection(mac_ctx, enable, true,
					 &bcn_prm, session);
		cur_detect->obss_11b_sta_detect_mode = reason;
	}
	if (OBSS_DETECTION_IS_11G_AP(detect_masks)) {
		if (reason != obss_cfg->obss_11g_ap_detect_mode ||
		    rf_band != REG_BAND_2G)
			goto wrong_detection;

		lim_enable_ht_protection_from11g(mac_ctx, enable, true,
						 &bcn_prm, session);
		cur_detect->obss_11g_ap_detect_mode = reason;
	}
	if (OBSS_DETECTION_IS_11A(detect_masks)) {
		if (reason != obss_cfg->obss_11a_detect_mode ||
		    rf_band != REG_BAND_5G)
			goto wrong_detection;

		lim_update_11a_protection(mac_ctx, enable, true,
					  &bcn_prm, session);
		cur_detect->obss_11a_detect_mode = reason;
	}
	if (OBSS_DETECTION_IS_HT_LEGACY(detect_masks)) {
		/* for 5GHz, we have only 11a detection, which covers legacy */
		if (reason != obss_cfg->obss_ht_legacy_detect_mode ||
		    rf_band != REG_BAND_2G)
			goto wrong_detection;

		lim_enable_ht_protection_from11g(mac_ctx, enable, true,
						 &bcn_prm, session);
		cur_detect->obss_ht_legacy_detect_mode = reason;
	}
	if (OBSS_DETECTION_IS_HT_MIXED(detect_masks)) {
		/* for 5GHz, we have only 11a detection, which covers ht mix */
		if (reason != obss_cfg->obss_ht_mixed_detect_mode ||
		    rf_band != REG_BAND_2G)
			goto wrong_detection;

		lim_enable_ht_protection_from11g(mac_ctx, enable, true,
						 &bcn_prm, session);
		cur_detect->obss_ht_mixed_detect_mode = reason;
	}
	if (OBSS_DETECTION_IS_HT_20MHZ(detect_masks)) {
		if (reason != obss_cfg->obss_ht_20mhz_detect_mode)
			goto wrong_detection;

		lim_enable_ht20_protection(mac_ctx, enable, true,
					   &bcn_prm, session);
		cur_detect->obss_ht_20mhz_detect_mode = reason;
	}

	if ((false == mac_ctx->sap.SapDfsInfo.is_dfs_cac_timer_running) &&
	    bcn_prm.paramChangeBitmap) {
		/* Update the bcn and apply the new settings to HAL */
		sch_set_fixed_beacon_fields(mac_ctx, session);
		pe_debug("Beacon for PE session: %d got changed: 0x%x",
			 session->smeSessionId, bcn_prm.paramChangeBitmap);
		if (!QDF_IS_STATUS_SUCCESS(lim_send_beacon_params(
		     mac_ctx, &bcn_prm, session))) {
			pe_err("Failed to send beacon param, session %d",
				obss_detection->vdev_id);
			return QDF_STATUS_E_FAULT;
		}
	}

	status = lim_obss_send_detection_cfg(mac_ctx, session, true);
	if (QDF_IS_STATUS_ERROR(status)) {
		pe_err("Failed to send obss detection cfg, session %d",
			obss_detection->vdev_id);
		return status;
	}

	return QDF_STATUS_SUCCESS;

wrong_detection:
	/*
	 * We may get this wrong detection before FW can update latest cfg,
	 * So keeping log level debug
	 **/
	pe_debug("Wrong detection, session %d", obss_detection->vdev_id);

	return QDF_STATUS_E_INVAL;
}