core/hdd/src/wlan_hdd_cfg80211.c

/*
 * Copyright (c) 2012-2017 The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * 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 was originally distributed by Qualcomm Atheros, Inc.
 * under proprietary terms before Copyright ownership was assigned
 * to the Linux Foundation.
 */

/**
 * DOC: wlan_hdd_cfg80211.c
 *
 * WLAN Host Device Driver cfg80211 APIs implementation
 *
 */

#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/etherdevice.h>
#include <linux/wireless.h>
#include <wlan_hdd_includes.h>
#include <net/arp.h>
#include <net/cfg80211.h>
#include <qdf_trace.h>
#include <wlan_hdd_wowl.h>
#include <ani_global.h>
#include "sir_params.h"
#include "dot11f.h"
#include "wlan_hdd_assoc.h"
#include "wlan_hdd_wext.h"
#include "sme_api.h"
#include "sme_power_save_api.h"
#include "wlan_hdd_p2p.h"
#include "wlan_hdd_cfg80211.h"
#include "wlan_hdd_hostapd.h"
#include "wlan_hdd_softap_tx_rx.h"
#include "wlan_hdd_main.h"
#include "wlan_hdd_power.h"
#include "wlan_hdd_trace.h"
#include "qdf_types.h"
#include "qdf_trace.h"
#include "cds_utils.h"
#include "cds_sched.h"
#include "wlan_hdd_scan.h"
#include <qc_sap_ioctl.h>
#include "wlan_hdd_tdls.h"
#include "wlan_hdd_wmm.h"
#include "wma_types.h"
#include "wma.h"
#include "wlan_hdd_misc.h"
#include "wlan_hdd_nan.h"
#include <wlan_hdd_ipa.h>
#include "wlan_logging_sock_svc.h"
#include "sap_api.h"
#include "csr_api.h"
#include "pld_common.h"
#ifdef WLAN_UMAC_CONVERGENCE
#include "wlan_cfg80211.h"
#endif
#include <cdp_txrx_handle.h>
#include <wlan_cfg80211_scan.h>

#ifdef FEATURE_WLAN_EXTSCAN
#include "wlan_hdd_ext_scan.h"
#endif

#ifdef WLAN_FEATURE_LINK_LAYER_STATS
#include "wlan_hdd_stats.h"
#endif
#include "cds_concurrency.h"
#include "qwlan_version.h"
#include "wlan_hdd_memdump.h"

#include "wlan_hdd_ocb.h"
#include "wlan_hdd_tsf.h"

#include "wlan_hdd_subnet_detect.h"
#include <wlan_hdd_regulatory.h>
#include "wlan_hdd_lpass.h"
#include "wlan_hdd_nan_datapath.h"
#include "wlan_hdd_disa.h"
#include "wlan_hdd_request_manager.h"

#include <cdp_txrx_cmn.h>
#include <cdp_txrx_misc.h>
#include <qca_vendor.h>


#define g_mode_rates_size (12)
#define a_mode_rates_size (8)
#define GET_IE_LEN_IN_BSS_DESC(lenInBss) (lenInBss + sizeof(lenInBss) - \
					   ((uintptr_t)OFFSET_OF(tSirBssDescription, ieFields)))

/*
 * Android CTS verifier needs atleast this much wait time (in msec)
 */
#define MAX_REMAIN_ON_CHANNEL_DURATION (5000)

/*
 * Refer @tCfgProtection structure for definition of the bit map.
 * below value is obtained by setting the following bit-fields.
 * enable obss, fromllb, overlapOBSS and overlapFromllb protection.
 */
#define IBSS_CFG_PROTECTION_ENABLE_MASK 0x8282

#define HDD2GHZCHAN(freq, chan, flag)   {     \
		.band =  NL80211_BAND_2GHZ, \
		.center_freq = (freq), \
		.hw_value = (chan), \
		.flags = (flag), \
		.max_antenna_gain = 0, \
		.max_power = 30, \
}

#define HDD5GHZCHAN(freq, chan, flag)   {     \
		.band =  NL80211_BAND_5GHZ, \
		.center_freq = (freq), \
		.hw_value = (chan), \
		.flags = (flag), \
		.max_antenna_gain = 0, \
		.max_power = 30, \
}

#define HDD_G_MODE_RATETAB(rate, rate_id, flag)	\
	{ \
		.bitrate = rate, \
		.hw_value = rate_id, \
		.flags = flag, \
	}

#define WLAN_AKM_SUITE_FT_8021X         0x000FAC03
#define WLAN_AKM_SUITE_FT_PSK           0x000FAC04

#define HDD_CHANNEL_14 14

#define IS_DFS_MODE_VALID(mode) ((mode >= DFS_MODE_NONE && \
			mode <= DFS_MODE_DEPRIORITIZE))
#define IS_CHANNEL_VALID(channel) ((channel >= 0 && channel < 15) \
		|| (channel >= 36 && channel <= 184))

#define MAX_TXPOWER_SCALE 4
#define CDS_MAX_FEATURE_SET   8

static const u32 hdd_cipher_suites[] = {
	WLAN_CIPHER_SUITE_WEP40,
	WLAN_CIPHER_SUITE_WEP104,
	WLAN_CIPHER_SUITE_TKIP,
#ifdef FEATURE_WLAN_ESE
#define WLAN_CIPHER_SUITE_BTK 0x004096fe        /* use for BTK */
#define WLAN_CIPHER_SUITE_KRK 0x004096ff        /* use for KRK */
	WLAN_CIPHER_SUITE_BTK,
	WLAN_CIPHER_SUITE_KRK,
	WLAN_CIPHER_SUITE_CCMP,
#else
	WLAN_CIPHER_SUITE_CCMP,
#endif
#ifdef FEATURE_WLAN_WAPI
	WLAN_CIPHER_SUITE_SMS4,
#endif
#ifdef WLAN_FEATURE_11W
	WLAN_CIPHER_SUITE_AES_CMAC,
#endif
};

static const struct ieee80211_channel hdd_channels_2_4_ghz[] = {
	HDD2GHZCHAN(2412, 1, 0),
	HDD2GHZCHAN(2417, 2, 0),
	HDD2GHZCHAN(2422, 3, 0),
	HDD2GHZCHAN(2427, 4, 0),
	HDD2GHZCHAN(2432, 5, 0),
	HDD2GHZCHAN(2437, 6, 0),
	HDD2GHZCHAN(2442, 7, 0),
	HDD2GHZCHAN(2447, 8, 0),
	HDD2GHZCHAN(2452, 9, 0),
	HDD2GHZCHAN(2457, 10, 0),
	HDD2GHZCHAN(2462, 11, 0),
	HDD2GHZCHAN(2467, 12, 0),
	HDD2GHZCHAN(2472, 13, 0),
	HDD2GHZCHAN(2484, 14, 0),
};

static const struct ieee80211_channel hdd_channels_5_ghz[] = {
	HDD5GHZCHAN(5180, 36, 0),
	HDD5GHZCHAN(5200, 40, 0),
	HDD5GHZCHAN(5220, 44, 0),
	HDD5GHZCHAN(5240, 48, 0),
	HDD5GHZCHAN(5260, 52, 0),
	HDD5GHZCHAN(5280, 56, 0),
	HDD5GHZCHAN(5300, 60, 0),
	HDD5GHZCHAN(5320, 64, 0),
	HDD5GHZCHAN(5500, 100, 0),
	HDD5GHZCHAN(5520, 104, 0),
	HDD5GHZCHAN(5540, 108, 0),
	HDD5GHZCHAN(5560, 112, 0),
	HDD5GHZCHAN(5580, 116, 0),
	HDD5GHZCHAN(5600, 120, 0),
	HDD5GHZCHAN(5620, 124, 0),
	HDD5GHZCHAN(5640, 128, 0),
	HDD5GHZCHAN(5660, 132, 0),
	HDD5GHZCHAN(5680, 136, 0),
	HDD5GHZCHAN(5700, 140, 0),
	HDD5GHZCHAN(5720, 144, 0),
	HDD5GHZCHAN(5745, 149, 0),
	HDD5GHZCHAN(5765, 153, 0),
	HDD5GHZCHAN(5785, 157, 0),
	HDD5GHZCHAN(5805, 161, 0),
	HDD5GHZCHAN(5825, 165, 0),
	HDD5GHZCHAN(5852, 170, 0),
	HDD5GHZCHAN(5855, 171, 0),
	HDD5GHZCHAN(5860, 172, 0),
	HDD5GHZCHAN(5865, 173, 0),
	HDD5GHZCHAN(5870, 174, 0),
	HDD5GHZCHAN(5875, 175, 0),
	HDD5GHZCHAN(5880, 176, 0),
	HDD5GHZCHAN(5885, 177, 0),
	HDD5GHZCHAN(5890, 178, 0),
	HDD5GHZCHAN(5895, 179, 0),
	HDD5GHZCHAN(5900, 180, 0),
	HDD5GHZCHAN(5905, 181, 0),
	HDD5GHZCHAN(5910, 182, 0),
	HDD5GHZCHAN(5915, 183, 0),
	HDD5GHZCHAN(5920, 184, 0),
};

static struct ieee80211_rate g_mode_rates[] = {
	HDD_G_MODE_RATETAB(10, 0x1, 0),
	HDD_G_MODE_RATETAB(20, 0x2, 0),
	HDD_G_MODE_RATETAB(55, 0x4, 0),
	HDD_G_MODE_RATETAB(110, 0x8, 0),
	HDD_G_MODE_RATETAB(60, 0x10, 0),
	HDD_G_MODE_RATETAB(90, 0x20, 0),
	HDD_G_MODE_RATETAB(120, 0x40, 0),
	HDD_G_MODE_RATETAB(180, 0x80, 0),
	HDD_G_MODE_RATETAB(240, 0x100, 0),
	HDD_G_MODE_RATETAB(360, 0x200, 0),
	HDD_G_MODE_RATETAB(480, 0x400, 0),
	HDD_G_MODE_RATETAB(540, 0x800, 0),
};

static struct ieee80211_rate a_mode_rates[] = {
	HDD_G_MODE_RATETAB(60, 0x10, 0),
	HDD_G_MODE_RATETAB(90, 0x20, 0),
	HDD_G_MODE_RATETAB(120, 0x40, 0),
	HDD_G_MODE_RATETAB(180, 0x80, 0),
	HDD_G_MODE_RATETAB(240, 0x100, 0),
	HDD_G_MODE_RATETAB(360, 0x200, 0),
	HDD_G_MODE_RATETAB(480, 0x400, 0),
	HDD_G_MODE_RATETAB(540, 0x800, 0),
};

static struct ieee80211_supported_band wlan_hdd_band_2_4_ghz = {
	.channels = NULL,
	.n_channels = ARRAY_SIZE(hdd_channels_2_4_ghz),
	.band = NL80211_BAND_2GHZ,
	.bitrates = g_mode_rates,
	.n_bitrates = g_mode_rates_size,
	.ht_cap.ht_supported = 1,
	.ht_cap.cap = IEEE80211_HT_CAP_SGI_20
		      | IEEE80211_HT_CAP_GRN_FLD
		      | IEEE80211_HT_CAP_DSSSCCK40
		      | IEEE80211_HT_CAP_LSIG_TXOP_PROT
		      | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SUP_WIDTH_20_40,
	.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
	.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
	.ht_cap.mcs.rx_mask = {0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
	.ht_cap.mcs.rx_highest = cpu_to_le16(72),
	.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
};

static struct ieee80211_supported_band wlan_hdd_band_5_ghz = {
	.channels = NULL,
	.n_channels = ARRAY_SIZE(hdd_channels_5_ghz),
	.band = NL80211_BAND_5GHZ,
	.bitrates = a_mode_rates,
	.n_bitrates = a_mode_rates_size,
	.ht_cap.ht_supported = 1,
	.ht_cap.cap = IEEE80211_HT_CAP_SGI_20
		      | IEEE80211_HT_CAP_GRN_FLD
		      | IEEE80211_HT_CAP_DSSSCCK40
		      | IEEE80211_HT_CAP_LSIG_TXOP_PROT
		      | IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_SUP_WIDTH_20_40,
	.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
	.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
	.ht_cap.mcs.rx_mask = {0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0,},
	.ht_cap.mcs.rx_highest = cpu_to_le16(72),
	.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
	.vht_cap.vht_supported = 1,
};

/* This structure contain information what kind of frame are expected in
 * TX/RX direction for each kind of interface
 */
static const struct ieee80211_txrx_stypes
	wlan_hdd_txrx_stypes[NUM_NL80211_IFTYPES] = {
	[NL80211_IFTYPE_STATION] = {
		.tx = 0xffff,
		.rx = BIT(SIR_MAC_MGMT_ACTION) |
		      BIT(SIR_MAC_MGMT_PROBE_REQ),
	},
	[NL80211_IFTYPE_AP] = {
		.tx = 0xffff,
		.rx = BIT(SIR_MAC_MGMT_ASSOC_REQ) |
		      BIT(SIR_MAC_MGMT_REASSOC_REQ) |
		      BIT(SIR_MAC_MGMT_PROBE_REQ) |
		      BIT(SIR_MAC_MGMT_DISASSOC) |
		      BIT(SIR_MAC_MGMT_AUTH) |
		      BIT(SIR_MAC_MGMT_DEAUTH) |
		      BIT(SIR_MAC_MGMT_ACTION),
	},
	[NL80211_IFTYPE_ADHOC] = {
		.tx = 0xffff,
		.rx = BIT(SIR_MAC_MGMT_ASSOC_REQ) |
		      BIT(SIR_MAC_MGMT_REASSOC_REQ) |
		      BIT(SIR_MAC_MGMT_PROBE_REQ) |
		      BIT(SIR_MAC_MGMT_DISASSOC) |
		      BIT(SIR_MAC_MGMT_AUTH) |
		      BIT(SIR_MAC_MGMT_DEAUTH) |
		      BIT(SIR_MAC_MGMT_ACTION),
	},
	[NL80211_IFTYPE_P2P_CLIENT] = {
		.tx = 0xffff,
		.rx = BIT(SIR_MAC_MGMT_ACTION) |
		      BIT(SIR_MAC_MGMT_PROBE_REQ),
	},
	[NL80211_IFTYPE_P2P_GO] = {
		/* This is also same as for SoftAP */
		.tx = 0xffff,
		.rx = BIT(SIR_MAC_MGMT_ASSOC_REQ) |
		      BIT(SIR_MAC_MGMT_REASSOC_REQ) |
		      BIT(SIR_MAC_MGMT_PROBE_REQ) |
		      BIT(SIR_MAC_MGMT_DISASSOC) |
		      BIT(SIR_MAC_MGMT_AUTH) |
		      BIT(SIR_MAC_MGMT_DEAUTH) |
		      BIT(SIR_MAC_MGMT_ACTION),
	},
};

/* Interface limits and combinations registered by the driver */

/* STA ( + STA ) combination */
static const struct ieee80211_iface_limit
	wlan_hdd_sta_iface_limit[] = {
	{
		.max = 3,       /* p2p0 is a STA as well */
		.types = BIT(NL80211_IFTYPE_STATION),
	},
};

/* ADHOC (IBSS) limit */
static const struct ieee80211_iface_limit
	wlan_hdd_adhoc_iface_limit[] = {
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_ADHOC),
	},
};

/* AP ( + AP ) combination */
static const struct ieee80211_iface_limit
	wlan_hdd_ap_iface_limit[] = {
	{
		.max = (QDF_MAX_NO_OF_SAP_MODE + SAP_MAX_OBSS_STA_CNT),
		.types = BIT(NL80211_IFTYPE_AP),
	},
};

/* P2P limit */
static const struct ieee80211_iface_limit
	wlan_hdd_p2p_iface_limit[] = {
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_P2P_CLIENT),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_P2P_GO),
	},
};

static const struct ieee80211_iface_limit
	wlan_hdd_sta_ap_iface_limit[] = {
	{
		/* We need 1 extra STA interface for OBSS scan when SAP starts
		 * with HT40 in STA+SAP concurrency mode
		 */
		.max = (1 + SAP_MAX_OBSS_STA_CNT),
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max = QDF_MAX_NO_OF_SAP_MODE,
		.types = BIT(NL80211_IFTYPE_AP),
	},
};

/* STA + P2P combination */
static const struct ieee80211_iface_limit
	wlan_hdd_sta_p2p_iface_limit[] = {
	{
		/* One reserved for dedicated P2PDEV usage */
		.max = 2,
		.types = BIT(NL80211_IFTYPE_STATION)
	},
	{
		/* Support for two identical (GO + GO or CLI + CLI)
		 * or dissimilar (GO + CLI) P2P interfaces
		 */
		.max = 2,
		.types = BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_P2P_CLIENT),
	},
};

/* STA + AP + P2PGO combination */
static const struct ieee80211_iface_limit
wlan_hdd_sta_ap_p2pgo_iface_limit[] = {
	/* Support for AP+P2PGO interfaces */
	{
	   .max = 2,
	   .types = BIT(NL80211_IFTYPE_STATION)
	},
	{
	   .max = 1,
	   .types = BIT(NL80211_IFTYPE_P2P_GO)
	},
	{
	   .max = 1,
	   .types = BIT(NL80211_IFTYPE_AP)
	}
};

/* SAP + P2P combination */
static const struct ieee80211_iface_limit
wlan_hdd_sap_p2p_iface_limit[] = {
	{
	   /* 1 dedicated for p2p0 which is a STA type */
	   .max = 1,
	   .types = BIT(NL80211_IFTYPE_STATION)
	},
	{
	   /* The p2p interface in SAP+P2P can be GO/CLI.
	    * The p2p connection can be formed on p2p0 or p2p-p2p0-x.
	    */
	   .max = 1,
	   .types = BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_P2P_CLIENT)
	},
	{
	   /* SAP+GO to support only one SAP interface */
	   .max = 1,
	   .types = BIT(NL80211_IFTYPE_AP)
	}
};

/* P2P + P2P combination */
static const struct ieee80211_iface_limit
wlan_hdd_p2p_p2p_iface_limit[] = {
	{
	   /* 1 dedicated for p2p0 which is a STA type */
	   .max = 1,
	   .types = BIT(NL80211_IFTYPE_STATION)
	},
	{
	   /* The p2p interface in P2P+P2P can be GO/CLI.
	    * For P2P+P2P, the new interfaces are formed on p2p-p2p0-x.
	    */
	   .max = 2,
	   .types = BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_P2P_CLIENT)
	},
};

static const struct ieee80211_iface_limit
	wlan_hdd_mon_iface_limit[] = {
	{
		.max = 3,       /* Monitor interface */
		.types = BIT(NL80211_IFTYPE_MONITOR),
	},
};

static struct ieee80211_iface_combination
	wlan_hdd_iface_combination[] = {
	/* STA */
	{
		.limits = wlan_hdd_sta_iface_limit,
		.num_different_channels = 2,
		.max_interfaces = 3,
		.n_limits = ARRAY_SIZE(wlan_hdd_sta_iface_limit),
	},
	/* ADHOC */
	{
		.limits = wlan_hdd_adhoc_iface_limit,
		.num_different_channels = 2,
		.max_interfaces = 2,
		.n_limits = ARRAY_SIZE(wlan_hdd_adhoc_iface_limit),
	},
	/* AP */
	{
		.limits = wlan_hdd_ap_iface_limit,
		.num_different_channels = 2,
		.max_interfaces = (SAP_MAX_OBSS_STA_CNT + QDF_MAX_NO_OF_SAP_MODE),
		.n_limits = ARRAY_SIZE(wlan_hdd_ap_iface_limit),
	},
	/* P2P */
	{
		.limits = wlan_hdd_p2p_iface_limit,
		.num_different_channels = 2,
		.max_interfaces = 2,
		.n_limits = ARRAY_SIZE(wlan_hdd_p2p_iface_limit),
	},
	/* STA + AP */
	{
		.limits = wlan_hdd_sta_ap_iface_limit,
		.num_different_channels = 2,
		.max_interfaces = (1 + SAP_MAX_OBSS_STA_CNT + QDF_MAX_NO_OF_SAP_MODE),
		.n_limits = ARRAY_SIZE(wlan_hdd_sta_ap_iface_limit),
		.beacon_int_infra_match = true,
	},
	/* STA + P2P */
	{
		.limits = wlan_hdd_sta_p2p_iface_limit,
		.num_different_channels = 2,
		/* one interface reserved for P2PDEV dedicated usage */
		.max_interfaces = 4,
		.n_limits = ARRAY_SIZE(wlan_hdd_sta_p2p_iface_limit),
		.beacon_int_infra_match = true,
	},
	/* STA + P2P GO + SAP */
	{
		.limits = wlan_hdd_sta_ap_p2pgo_iface_limit,
		/* we can allow 3 channels for three different persona
		 * but due to firmware limitation, allow max 2 concrnt channels.
		 */
		.num_different_channels = 2,
		/* one interface reserved for P2PDEV dedicated usage */
		.max_interfaces = 4,
		.n_limits = ARRAY_SIZE(wlan_hdd_sta_ap_p2pgo_iface_limit),
		.beacon_int_infra_match = true,
	},
	/* SAP + P2P */
	{
		.limits = wlan_hdd_sap_p2p_iface_limit,
		.num_different_channels = 2,
		/* 1-p2p0 + 1-SAP + 1-P2P (on p2p0 or p2p-p2p0-x) */
		.max_interfaces = 3,
		.n_limits = ARRAY_SIZE(wlan_hdd_sap_p2p_iface_limit),
		.beacon_int_infra_match = true,
	},
	/* P2P + P2P */
	{
		.limits = wlan_hdd_p2p_p2p_iface_limit,
		.num_different_channels = 2,
		/* 1-p2p0 + 2-P2P (on p2p-p2p0-x) */
		.max_interfaces = 3,
		.n_limits = ARRAY_SIZE(wlan_hdd_p2p_p2p_iface_limit),
		.beacon_int_infra_match = true,
	},
	/* Monitor */
	{
		.limits = wlan_hdd_mon_iface_limit,
		.max_interfaces = 3,
		.num_different_channels = 2,
		.n_limits = ARRAY_SIZE(wlan_hdd_mon_iface_limit),
	},
};

static struct cfg80211_ops wlan_hdd_cfg80211_ops;

#ifdef WLAN_NL80211_TESTMODE
enum wlan_hdd_tm_attr {
	WLAN_HDD_TM_ATTR_INVALID = 0,
	WLAN_HDD_TM_ATTR_CMD = 1,
	WLAN_HDD_TM_ATTR_DATA = 2,
	WLAN_HDD_TM_ATTR_STREAM_ID = 3,
	WLAN_HDD_TM_ATTR_TYPE = 4,
	/* keep last */
	WLAN_HDD_TM_ATTR_AFTER_LAST,
	WLAN_HDD_TM_ATTR_MAX = WLAN_HDD_TM_ATTR_AFTER_LAST - 1,
};

enum wlan_hdd_tm_cmd {
	WLAN_HDD_TM_CMD_WLAN_FTM = 0,
	WLAN_HDD_TM_CMD_WLAN_HB = 1,
};

#define WLAN_HDD_TM_DATA_MAX_LEN    5000

enum wlan_hdd_vendor_ie_access_policy {
	WLAN_HDD_VENDOR_IE_ACCESS_NONE = 0,
	WLAN_HDD_VENDOR_IE_ACCESS_ALLOW_IF_LISTED,
};

static const struct nla_policy wlan_hdd_tm_policy[WLAN_HDD_TM_ATTR_MAX + 1] = {
	[WLAN_HDD_TM_ATTR_CMD] = {.type = NLA_U32},
	[WLAN_HDD_TM_ATTR_DATA] = {.type = NLA_BINARY,
				   .len = WLAN_HDD_TM_DATA_MAX_LEN},
};
#endif /* WLAN_NL80211_TESTMODE */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0))
static const struct wiphy_wowlan_support wowlan_support_cfg80211_init = {
	.flags = WIPHY_WOWLAN_MAGIC_PKT,
	.n_patterns = WOWL_MAX_PTRNS_ALLOWED,
	.pattern_min_len = 1,
	.pattern_max_len = WOWL_PTRN_MAX_SIZE,
};
#endif

/**
 * hdd_add_channel_switch_support()- Adds Channel Switch flag if supported
 * @flags: Pointer to the flags to Add channel switch flag.
 *
 * This Function adds Channel Switch support flag, if channel switch is
 * supported by kernel.
 * Return: void.
 */
#ifdef CHANNEL_SWITCH_SUPPORTED
static inline void hdd_add_channel_switch_support(uint32_t *flags)
{
	*flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
	return;
}
#else
static inline void hdd_add_channel_switch_support(uint32_t *flags)
{
	return;
}
#endif

#ifdef FEATURE_WLAN_TDLS

/* TDLS capabilities params */
#define PARAM_MAX_TDLS_SESSION \
		QCA_WLAN_VENDOR_ATTR_TDLS_GET_CAPS_MAX_CONC_SESSIONS
#define PARAM_TDLS_FEATURE_SUPPORT \
		QCA_WLAN_VENDOR_ATTR_TDLS_GET_CAPS_FEATURES_SUPPORTED

/**
 * __wlan_hdd_cfg80211_get_tdls_capabilities() - Provide TDLS Capabilites.
 * @wiphy:    WIPHY structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function provides TDLS capabilities
 *
 * Return: 0 on success and errno on failure
 */
static int __wlan_hdd_cfg80211_get_tdls_capabilities(struct wiphy *wiphy,
						     struct wireless_dev *wdev,
						     const void *data,
						     int data_len)
{
	int status;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct sk_buff *skb;
	uint32_t set = 0;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		return status;

	skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, (2 * sizeof(u32)) +
						   NLMSG_HDRLEN);
	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		goto fail;
	}

	if (false == hdd_ctx->config->fEnableTDLSSupport) {
		hdd_err("TDLS feature not Enabled or Not supported in FW");
		if (nla_put_u32(skb, PARAM_MAX_TDLS_SESSION, 0) ||
			nla_put_u32(skb, PARAM_TDLS_FEATURE_SUPPORT, 0)) {
			hdd_err("nla put fail");
			goto fail;
		}
	} else {
		set = set | WIFI_TDLS_SUPPORT;
		set = set | (hdd_ctx->config->fTDLSExternalControl ?
					WIFI_TDLS_EXTERNAL_CONTROL_SUPPORT : 0);
		set = set | (hdd_ctx->config->fEnableTDLSOffChannel ?
					WIIF_TDLS_OFFCHANNEL_SUPPORT : 0);
		hdd_notice("TDLS Feature supported value %x", set);
		if (nla_put_u32(skb, PARAM_MAX_TDLS_SESSION,
				 hdd_ctx->max_num_tdls_sta) ||
			nla_put_u32(skb, PARAM_TDLS_FEATURE_SUPPORT,
				 set)) {
			hdd_err("nla put fail");
			goto fail;
		}
	}
	return cfg80211_vendor_cmd_reply(skb);
fail:
	if (skb)
		kfree_skb(skb);
	return -EINVAL;
}

/**
 * wlan_hdd_cfg80211_get_tdls_capabilities() - Provide TDLS Capabilites.
 * @wiphy:    WIPHY structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function provides TDLS capabilities
 *
 * Return: 0 on success and errno on failure
 */
static int
wlan_hdd_cfg80211_get_tdls_capabilities(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data,
					int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_tdls_capabilities(wiphy, wdev,
							data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}
#endif

#ifdef QCA_HT_2040_COEX
static void wlan_hdd_cfg80211_start_pending_acs(struct work_struct *work);
#endif

#if defined(FEATURE_WLAN_CH_AVOID) || defined(FEATURE_WLAN_FORCE_SAP_SCC)
/*
 * FUNCTION: wlan_hdd_send_avoid_freq_event
 * This is called when wlan driver needs to send vendor specific
 * avoid frequency range event to userspace
 */
int wlan_hdd_send_avoid_freq_event(hdd_context_t *pHddCtx,
				   tHddAvoidFreqList *pAvoidFreqList)
{
	struct sk_buff *vendor_event;

	ENTER();

	if (!pHddCtx) {
		hdd_err("HDD context is null");
		return -EINVAL;
	}

	if (!pAvoidFreqList) {
		hdd_err("pAvoidFreqList is null");
		return -EINVAL;
	}

	vendor_event = cfg80211_vendor_event_alloc(pHddCtx->wiphy,
						   NULL,
						   sizeof(tHddAvoidFreqList),
						   QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY_INDEX,
						   GFP_KERNEL);
	if (!vendor_event) {
		hdd_err("cfg80211_vendor_event_alloc failed");
		return -EINVAL;
	}

	memcpy(skb_put(vendor_event, sizeof(tHddAvoidFreqList)),
	       (void *)pAvoidFreqList, sizeof(tHddAvoidFreqList));

	cfg80211_vendor_event(vendor_event, GFP_KERNEL);

	EXIT();
	return 0;
}
#endif /* FEATURE_WLAN_CH_AVOID || FEATURE_WLAN_FORCE_SAP_SCC */

/* vendor specific events */
static const struct nl80211_vendor_cmd_info wlan_hdd_cfg80211_vendor_events[] = {
#ifdef FEATURE_WLAN_CH_AVOID
	[QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY
	},
#endif /* FEATURE_WLAN_CH_AVOID */

#ifdef WLAN_FEATURE_NAN
	[QCA_NL80211_VENDOR_SUBCMD_NAN_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_NAN
	},
#endif

#ifdef WLAN_FEATURE_STATS_EXT
	[QCA_NL80211_VENDOR_SUBCMD_STATS_EXT_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_STATS_EXT
	},
#endif /* WLAN_FEATURE_STATS_EXT */
#ifdef FEATURE_WLAN_EXTSCAN
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_START_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_START
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_STOP_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_STOP
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_CAPABILITIES_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_CAPABILITIES
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_CACHED_RESULTS_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.
		subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_CACHED_RESULTS
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SCAN_RESULTS_AVAILABLE_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.
		subcmd
			=
				QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SCAN_RESULTS_AVAILABLE
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_FULL_SCAN_RESULT_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_FULL_SCAN_RESULT
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SCAN_EVENT_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SCAN_EVENT
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_AP_FOUND_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_AP_FOUND
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_BSSID_HOTLIST_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_BSSID_HOTLIST
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_BSSID_HOTLIST_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.
		subcmd
			=
				QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_BSSID_HOTLIST
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SIGNIFICANT_CHANGE_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.
		subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SIGNIFICANT_CHANGE
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_SIGNIFICANT_CHANGE_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.
		subcmd
			=
				QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_SIGNIFICANT_CHANGE
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_SIGNIFICANT_CHANGE_INDEX] = {
		.
		vendor_id
			=
				QCA_NL80211_VENDOR_ID,
		.
		subcmd
			=
				QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_SIGNIFICANT_CHANGE
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_SSID_FOUND_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_SSID_FOUND
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_SSID_LOST_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_SSID_LOST
	},
#endif /* FEATURE_WLAN_EXTSCAN */

#ifdef WLAN_FEATURE_LINK_LAYER_STATS
	[QCA_NL80211_VENDOR_SUBCMD_LL_STATS_SET_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_LL_STATS_SET
	},
	[QCA_NL80211_VENDOR_SUBCMD_LL_STATS_GET_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_LL_STATS_GET
	},
	[QCA_NL80211_VENDOR_SUBCMD_LL_STATS_CLR_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_LL_STATS_CLR
	},
	[QCA_NL80211_VENDOR_SUBCMD_LL_RADIO_STATS_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_LL_STATS_RADIO_RESULTS
	},
	[QCA_NL80211_VENDOR_SUBCMD_LL_IFACE_STATS_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_LL_STATS_IFACE_RESULTS
	},
	[QCA_NL80211_VENDOR_SUBCMD_LL_PEER_INFO_STATS_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_LL_STATS_PEERS_RESULTS
	},
#endif /* WLAN_FEATURE_LINK_LAYER_STATS */
	[QCA_NL80211_VENDOR_SUBCMD_TDLS_STATE_CHANGE_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_TDLS_STATE
	},
	[QCA_NL80211_VENDOR_SUBCMD_DO_ACS_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_DO_ACS
	},
#ifdef WLAN_FEATURE_ROAM_OFFLOAD
	[QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH_INDEX] = {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH
	},
#endif
	[QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_STARTED_INDEX] =  {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_STARTED
	},
	[QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_FINISHED_INDEX] =  {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_FINISHED
	},
	[QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_ABORTED_INDEX] =  {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_ABORTED
	},
	[QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_NOP_FINISHED_INDEX] =  {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_CAC_NOP_FINISHED
	},
	[QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_RADAR_DETECTED_INDEX] =  {
		.vendor_id =
			QCA_NL80211_VENDOR_ID,
		.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_RADAR_DETECTED
	},
#ifdef FEATURE_WLAN_EXTSCAN
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_NETWORK_FOUND_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_NETWORK_FOUND
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_PASSPOINT_NETWORK_FOUND_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_PASSPOINT_NETWORK_FOUND
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_SSID_HOTLIST_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_SSID_HOTLIST
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_SSID_HOTLIST_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_SSID_HOTLIST
	},
	[QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_AP_LOST_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_HOTLIST_AP_LOST
	},
#endif /* FEATURE_WLAN_EXTSCAN */
	[QCA_NL80211_VENDOR_SUBCMD_MONITOR_RSSI_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_MONITOR_RSSI
	},
#ifdef WLAN_FEATURE_MEMDUMP
	[QCA_NL80211_VENDOR_SUBCMD_WIFI_LOGGER_MEMORY_DUMP_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_WIFI_LOGGER_MEMORY_DUMP
	},
#endif /* WLAN_FEATURE_MEMDUMP */
#ifdef WLAN_FEATURE_TSF
	[QCA_NL80211_VENDOR_SUBCMD_TSF_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_TSF
	},
#endif
	[QCA_NL80211_VENDOR_SUBCMD_SCAN_DONE_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_SCAN_DONE
	},
	[QCA_NL80211_VENDOR_SUBCMD_SCAN_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN
	},
	/* OCB events */
	[QCA_NL80211_VENDOR_SUBCMD_DCC_STATS_EVENT_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_DCC_STATS_EVENT
	},
#ifdef FEATURE_LFR_SUBNET_DETECTION
	[QCA_NL80211_VENDOR_SUBCMD_GW_PARAM_CONFIG_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_GW_PARAM_CONFIG
	},
#endif /*FEATURE_LFR_SUBNET_DETECTION */

#ifdef WLAN_FEATURE_NAN_DATAPATH
	[QCA_NL80211_VENDOR_SUBCMD_NDP_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_NDP
	},
#endif /* WLAN_FEATURE_NAN_DATAPATH */

	[QCA_NL80211_VENDOR_SUBCMD_P2P_LO_EVENT_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP
	},
	[QCA_NL80211_VENDOR_SUBCMD_SAP_CONDITIONAL_CHAN_SWITCH_INDEX] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_SAP_CONDITIONAL_CHAN_SWITCH
	},
	[QCA_NL80211_VENDOR_SUBCMD_UPDATE_EXTERNAL_ACS_CONFIG] = {
		.vendor_id = QCA_NL80211_VENDOR_ID,
		.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTERNAL_ACS
	},
#ifdef WLAN_UMAC_CONVERGENCE
	COMMON_VENDOR_EVENTS
#endif
};

/**
 * __is_driver_dfs_capable() - get driver DFS capability
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This function is called by userspace to indicate whether or not
 * the driver supports DFS offload.
 *
 * Return: 0 on success, negative errno on failure
 */
static int __is_driver_dfs_capable(struct wiphy *wiphy,
				   struct wireless_dev *wdev,
				   const void *data,
				   int data_len)
{
	u32 dfs_capability = 0;
	struct sk_buff *temp_skbuff;
	int ret_val;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);

	ENTER_DEV(wdev->netdev);

	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		return ret_val;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	dfs_capability = !!(wiphy->flags & WIPHY_FLAG_DFS_OFFLOAD);

	temp_skbuff = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, sizeof(u32) +
							  NLMSG_HDRLEN);

	if (temp_skbuff != NULL) {
		ret_val = nla_put_u32(temp_skbuff, QCA_WLAN_VENDOR_ATTR_DFS,
				      dfs_capability);
		if (ret_val) {
			hdd_err("QCA_WLAN_VENDOR_ATTR_DFS put fail");
			kfree_skb(temp_skbuff);

			return ret_val;
		}

		return cfg80211_vendor_cmd_reply(temp_skbuff);
	}

	hdd_err("dfs capability: buffer alloc fail");
	return -ENOMEM;
}

/**
 * is_driver_dfs_capable() - get driver DFS capability
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This function is called by userspace to indicate whether or not
 * the driver supports DFS offload.  This is an SSR-protected
 * wrapper function.
 *
 * Return: 0 on success, negative errno on failure
 */
static int is_driver_dfs_capable(struct wiphy *wiphy,
				 struct wireless_dev *wdev,
				 const void *data,
				 int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __is_driver_dfs_capable(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_sap_cfg_dfs_override() - DFS MCC restriction check
 *
 * @adapter: SAP adapter pointer
 *
 * DFS in MCC is not supported for Multi bssid SAP mode due to single physical
 * radio. So in case of DFS MCC scenario override current SAP given config
 * to follow concurrent SAP DFS config
 *
 * Return: 0 - No DFS issue, 1 - Override done and negative error codes
 */
int wlan_hdd_sap_cfg_dfs_override(hdd_adapter_t *adapter)
{
	hdd_adapter_t *con_sap_adapter;
	tsap_Config_t *sap_config, *con_sap_config;
	int con_ch;

	/*
	 * Check if AP+AP case, once primary AP chooses a DFS
	 * channel secondary AP should always follow primary APs channel
	 */
	if (!cds_concurrent_beaconing_sessions_running())
		return 0;

	con_sap_adapter = hdd_get_con_sap_adapter(adapter, true);
	if (!con_sap_adapter)
		return 0;

	sap_config = &adapter->sessionCtx.ap.sapConfig;
	con_sap_config = &con_sap_adapter->sessionCtx.ap.sapConfig;
	con_ch = con_sap_adapter->sessionCtx.ap.operatingChannel;

	if (!CDS_IS_DFS_CH(con_ch))
		return 0;

	hdd_err("Only SCC AP-AP DFS Permitted (ch=%d, con_ch=%d)",
						sap_config->channel, con_ch);
	hdd_notice("Overriding guest AP's channel");
	sap_config->channel = con_ch;

	if (con_sap_config->acs_cfg.acs_mode == true) {
		if (con_ch != con_sap_config->acs_cfg.pri_ch &&
				con_ch != con_sap_config->acs_cfg.ht_sec_ch) {
			hdd_err("Primary AP channel config error");
			hdd_err("Operating ch: %d ACS ch: %d %d",
				con_ch, con_sap_config->acs_cfg.pri_ch,
				con_sap_config->acs_cfg.ht_sec_ch);
			return -EINVAL;
		}
		/* Sec AP ACS info is overwritten with Pri AP due to DFS
		 * MCC restriction. So free ch list allocated in do_acs
		 * func for Sec AP and realloc for Pri AP ch list size
		 */
		if (sap_config->acs_cfg.ch_list)
			qdf_mem_free(sap_config->acs_cfg.ch_list);

		qdf_mem_copy(&sap_config->acs_cfg,
					&con_sap_config->acs_cfg,
					sizeof(struct sap_acs_cfg));
		sap_config->acs_cfg.ch_list = qdf_mem_malloc(
					sizeof(uint8_t) *
					con_sap_config->acs_cfg.ch_list_count);
		if (!sap_config->acs_cfg.ch_list) {
			hdd_err("ACS config alloc fail");
			return -ENOMEM;
		}

		qdf_mem_copy(sap_config->acs_cfg.ch_list,
					con_sap_config->acs_cfg.ch_list,
					con_sap_config->acs_cfg.ch_list_count);

	} else {
		sap_config->acs_cfg.pri_ch = con_ch;
		if (sap_config->acs_cfg.ch_width > eHT_CHANNEL_WIDTH_20MHZ)
			sap_config->acs_cfg.ht_sec_ch = con_sap_config->sec_ch;
	}

	return con_ch;
}

/**
 * wlan_hdd_set_acs_ch_range : Start ACS channel range values
 * @sap_cfg: pointer to SAP config struct
 *
 * This function sets the default ACS start and end channel for the given band
 * and also parses the given ACS channel list.
 *
 * Return: None
 */

static void wlan_hdd_set_acs_ch_range(tsap_Config_t *sap_cfg, bool ht_enabled,
							bool vht_enabled)
{
	int i;
	if (sap_cfg->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211B) {
		sap_cfg->acs_cfg.hw_mode = eCSR_DOT11_MODE_11b;
		sap_cfg->acs_cfg.start_ch = CDS_CHANNEL_NUM(CHAN_ENUM_1);
		sap_cfg->acs_cfg.end_ch = CDS_CHANNEL_NUM(CHAN_ENUM_14);
	} else if (sap_cfg->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211G) {
		sap_cfg->acs_cfg.hw_mode = eCSR_DOT11_MODE_11g;
		sap_cfg->acs_cfg.start_ch = CDS_CHANNEL_NUM(CHAN_ENUM_1);
		sap_cfg->acs_cfg.end_ch = CDS_CHANNEL_NUM(CHAN_ENUM_13);
	} else if (sap_cfg->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211A) {
		sap_cfg->acs_cfg.hw_mode = eCSR_DOT11_MODE_11a;
		sap_cfg->acs_cfg.start_ch = CDS_CHANNEL_NUM(CHAN_ENUM_36);
		sap_cfg->acs_cfg.end_ch = CDS_CHANNEL_NUM(CHAN_ENUM_165);
	} else if (sap_cfg->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211ANY) {
		sap_cfg->acs_cfg.hw_mode = eCSR_DOT11_MODE_abg;
		sap_cfg->acs_cfg.start_ch = CDS_CHANNEL_NUM(CHAN_ENUM_1);
		sap_cfg->acs_cfg.end_ch = CDS_CHANNEL_NUM(CHAN_ENUM_165);
	}

	if (ht_enabled)
		sap_cfg->acs_cfg.hw_mode = eCSR_DOT11_MODE_11n;

	if (vht_enabled)
		sap_cfg->acs_cfg.hw_mode = eCSR_DOT11_MODE_11ac;


	/* Parse ACS Chan list from hostapd */
	if (!sap_cfg->acs_cfg.ch_list)
		return;

	sap_cfg->acs_cfg.start_ch = sap_cfg->acs_cfg.ch_list[0];
	sap_cfg->acs_cfg.end_ch =
		sap_cfg->acs_cfg.ch_list[sap_cfg->acs_cfg.ch_list_count - 1];
	for (i = 0; i < sap_cfg->acs_cfg.ch_list_count; i++) {
		/* avoid channel as start channel */
		if (sap_cfg->acs_cfg.start_ch > sap_cfg->acs_cfg.ch_list[i] &&
		    sap_cfg->acs_cfg.ch_list[i] != 0)
			sap_cfg->acs_cfg.start_ch = sap_cfg->acs_cfg.ch_list[i];
		if (sap_cfg->acs_cfg.end_ch < sap_cfg->acs_cfg.ch_list[i])
			sap_cfg->acs_cfg.end_ch = sap_cfg->acs_cfg.ch_list[i];
	}
}


static void wlan_hdd_cfg80211_start_pending_acs(struct work_struct *work);

/**
 * wlan_hdd_cfg80211_start_acs : Start ACS Procedure for SAP
 * @adapter: pointer to SAP adapter struct
 *
 * This function starts the ACS procedure if there are no
 * constraints like MBSSID DFS restrictions.
 *
 * Return: Status of ACS Start procedure
 */
int wlan_hdd_cfg80211_start_acs(hdd_adapter_t *adapter)
{

	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	tsap_Config_t *sap_config;
	tpWLAN_SAPEventCB acs_event_callback;
	int status;

	sap_config = &adapter->sessionCtx.ap.sapConfig;
	if (hdd_ctx->acs_policy.acs_channel)
		sap_config->channel = hdd_ctx->acs_policy.acs_channel;
	else
		sap_config->channel = AUTO_CHANNEL_SELECT;

	status = wlan_hdd_sap_cfg_dfs_override(adapter);
	if (status < 0)
		return status;

	if (status > 0) {
		/*notify hostapd about channel override */
		wlan_hdd_cfg80211_acs_ch_select_evt(adapter);
		clear_bit(ACS_IN_PROGRESS, &hdd_ctx->g_event_flags);
		return 0;
	}

	status = wlan_hdd_config_acs(hdd_ctx, adapter);
	if (status) {
		hdd_err("ACS config failed");
		return -EINVAL;
	}

	acs_event_callback = hdd_hostapd_sap_event_cb;

	qdf_mem_copy(sap_config->self_macaddr.bytes,
		adapter->macAddressCurrent.bytes, sizeof(struct qdf_mac_addr));
	hdd_notice("ACS Started for %s", adapter->dev->name);
	status = wlansap_acs_chselect(
		WLAN_HDD_GET_SAP_CTX_PTR(adapter),
		acs_event_callback, sap_config, adapter->dev);


	if (status) {
		hdd_err("ACS channel select failed");
		return -EINVAL;
	}
	if (sap_is_auto_channel_select(WLAN_HDD_GET_SAP_CTX_PTR(adapter)))
		sap_config->acs_cfg.acs_mode = true;
	set_bit(ACS_IN_PROGRESS, &hdd_ctx->g_event_flags);

	return 0;
}

/**
 * wlan_hdd_sap_get_nol() - Get SAPs NOL
 * @ap_adapter: AP adapter
 * @nol: Non-occupancy list
 * @nol_len: Length of NOL
 *
 * Get the NOL for SAP
 *
 * Return: Zero on success, non-zero on failure
 */
static int wlan_hdd_sap_get_nol(hdd_adapter_t *ap_adapter, uint8_t *nol,
				uint32_t *nol_len)
{
	QDF_STATUS ret;

	ret = wlansap_get_dfs_nol(WLAN_HDD_GET_SAP_CTX_PTR(ap_adapter),
				nol, nol_len);
	if (QDF_IS_STATUS_ERROR(ret))
		return -EINVAL;

	return 0;
}

/**
 * hdd_update_vendor_pcl_list() - This API will return unsorted pcl list
 * @hdd_ctx: hdd context
 * @acs_chan_params: external acs channel params
 * @sap_config: SAP config
 *
 * This API provides unsorted pcl list.
 * this list is a subset of the valid channel list given by hostapd.
 * if channel is not present in pcl, weightage will be given as zero
 *
 * Return: Zero on success, non-zero on failure
 */
static void hdd_update_vendor_pcl_list(hdd_context_t *hdd_ctx,
		struct hdd_vendor_acs_chan_params *acs_chan_params,
		tsap_Config_t *sap_config)
{
	int i, j;

	for (i = 0; i < acs_chan_params->channel_count; i++) {
		for (j = 0; j < sap_config->acs_cfg.pcl_ch_count; j++) {
			if (acs_chan_params->channel_list[i] ==
				sap_config->acs_cfg.pcl_channels[j]) {
				acs_chan_params->vendor_pcl_list[i] =
					sap_config->acs_cfg.pcl_channels[j];
				acs_chan_params->vendor_weight_list[i] =
					sap_config->acs_cfg.
						pcl_channels_weight_list[j];
				break;
			} else {
				acs_chan_params->vendor_pcl_list[i] =
					acs_chan_params->channel_list[i];
				acs_chan_params->vendor_weight_list[i] = 0;
			}
		}
	}
	if (hdd_ctx->unsafe_channel_count == 0)
		return;
	/* Update unsafe channel weight as zero */
	for (i = 0; i < acs_chan_params->channel_count; i++) {
		for (j = 0; j < hdd_ctx->unsafe_channel_count; j++) {
			if (acs_chan_params->channel_list[i] ==
				hdd_ctx->unsafe_channel_list[j]) {
				acs_chan_params->vendor_weight_list[i] = 0;
			}
		}
	}
}

/**
 * hdd_update_reg_chan_info : This API contructs channel info
 * for all the given channel
 * @adapter: pointer to SAP adapter struct
 * @channel_count: channel count
 * @channel_list: channel list
 *
 * Return: Status of of channel information updation
 */
static int hdd_update_reg_chan_info(hdd_adapter_t *adapter,
			uint32_t channel_count,
			uint8_t *channel_list)
{
	int i;
	struct hdd_channel_info *icv;
	struct ch_params_s ch_params = {0};
	uint8_t bw_offset = 0, chan = 0;
	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	tsap_Config_t *sap_config = &adapter->sessionCtx.ap.sapConfig;

	/* memory allocation */
	sap_config->channel_info = qdf_mem_malloc(
					sizeof(struct hdd_channel_info) *
					channel_count);
	if (!sap_config->channel_info) {
		hdd_err("memory allocation failed");
		return -ENOMEM;

	}
	for (i = 0; i < channel_count; i++) {
		icv = &sap_config->channel_info[i];
		chan = channel_list[i];

		if (chan == 0)
			continue;

		if (sap_config->acs_cfg.ch_width == CH_WIDTH_40MHZ)
			bw_offset = 1 << BW_40_OFFSET_BIT;
		else if (sap_config->acs_cfg.ch_width == CH_WIDTH_20MHZ)
			bw_offset = 1 << BW_20_OFFSET_BIT;
		icv->freq = cds_get_channel_freq(chan);
		icv->ieee_chan_number = chan;
		icv->max_reg_power = cds_get_channel_reg_power(chan);

		/* filling demo values */
		icv->max_radio_power = HDD_MAX_TX_POWER;
		icv->min_radio_power = HDD_MIN_TX_POWER;
		/* not supported in current driver */
		icv->max_antenna_gain = 0;

		icv->reg_class_id = wlan_hdd_find_opclass(
					WLAN_HDD_GET_HAL_CTX(adapter),
					chan, bw_offset);

		if (CDS_IS_CHANNEL_5GHZ(chan)) {
			ch_params.ch_width = sap_config->acs_cfg.ch_width;
			cds_set_channel_params(chan, 0, &ch_params);
			icv->vht_center_freq_seg0 = ch_params.center_freq_seg0;
			icv->vht_center_freq_seg1 = ch_params.center_freq_seg1;
		}
		icv->flags = 0;
		icv->flags = cds_get_vendor_reg_flags(chan,
				sap_config->acs_cfg.ch_width,
				sap_config->acs_cfg.is_ht_enabled,
				sap_config->acs_cfg.is_vht_enabled,
				hdd_ctx->config->enable_sub_20_channel_width);

		hdd_info("freq %d flags %d flagext %d ieee %d maxreg %d maxpw %d minpw %d regClass %d antenna %d seg0 %d seg1 %d",
			icv->freq, icv->flags,
			icv->flagext, icv->ieee_chan_number,
			icv->max_reg_power, icv->max_radio_power,
			icv->min_radio_power, icv->reg_class_id,
			icv->max_antenna_gain, icv->vht_center_freq_seg0,
			icv->vht_center_freq_seg1);
	}
	return 0;
}

/* Short name for QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHAN_INFO event */
#define CHAN_INFO_ATTR_FLAGS \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FLAGS
#define CHAN_INFO_ATTR_FLAG_EXT \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FLAG_EXT
#define CHAN_INFO_ATTR_FREQ \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_FREQ
#define CHAN_INFO_ATTR_MAX_REG_POWER \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MAX_REG_POWER
#define CHAN_INFO_ATTR_MAX_POWER \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MAX_POWER
#define CHAN_INFO_ATTR_MIN_POWER \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_MIN_POWER
#define CHAN_INFO_ATTR_REG_CLASS_ID \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_REG_CLASS_ID
#define CHAN_INFO_ATTR_ANTENNA_GAIN \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_ANTENNA_GAIN
#define CHAN_INFO_ATTR_VHT_SEG_0 \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_VHT_SEG_0
#define CHAN_INFO_ATTR_VHT_SEG_1 \
	QCA_WLAN_VENDOR_EXTERNAL_ACS_EVENT_CHAN_INFO_ATTR_VHT_SEG_1

/**
 * hdd_cfg80211_update_channel_info() - add channel info attributes
 * @skb: pointer to sk buff
 * @hdd_ctx: pointer to hdd station context
 * @idx: attribute index
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t
hdd_cfg80211_update_channel_info(struct sk_buff *skb,
			   tsap_Config_t *sap_config, int idx)
{
	struct nlattr *nla_attr, *channel;
	struct hdd_channel_info *icv;
	int i;

	nla_attr = nla_nest_start(skb, idx);
	if (!nla_attr)
		goto fail;

	for (i = 0; i < sap_config->acs_cfg.ch_list_count; i++) {
		channel = nla_nest_start(skb, i);
		if (!channel)
			goto fail;

		icv = &sap_config->channel_info[i];
		if (!icv) {
			hdd_err("channel info not found");
			goto fail;
		}
		if (nla_put_u16(skb, CHAN_INFO_ATTR_FREQ,
				icv->freq) ||
		    nla_put_u32(skb, CHAN_INFO_ATTR_FLAGS,
				icv->flags) ||
		    nla_put_u16(skb, CHAN_INFO_ATTR_FLAG_EXT,
				icv->flagext) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_MAX_REG_POWER,
				icv->max_reg_power) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_MAX_POWER,
				icv->max_radio_power) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_MIN_POWER,
				icv->min_radio_power) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_REG_CLASS_ID,
				icv->reg_class_id) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_ANTENNA_GAIN,
				icv->max_antenna_gain) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_VHT_SEG_0,
				icv->vht_center_freq_seg0) ||
		    nla_put_u8(skb, CHAN_INFO_ATTR_VHT_SEG_1,
				icv->vht_center_freq_seg1)) {
			hdd_err("put fail");
			goto fail;
		}
		nla_nest_end(skb, channel);
	}
	nla_nest_end(skb, nla_attr);
	return 0;
fail:
	hdd_err("nl channel update failed");
	return -EINVAL;
}
#undef CHAN_INFO_ATTR_FLAGS
#undef CHAN_INFO_ATTR_FLAG_EXT
#undef CHAN_INFO_ATTR_FREQ
#undef CHAN_INFO_ATTR_MAX_REG_POWER
#undef CHAN_INFO_ATTR_MAX_POWER
#undef CHAN_INFO_ATTR_MIN_POWER
#undef CHAN_INFO_ATTR_REG_CLASS_ID
#undef CHAN_INFO_ATTR_ANTENNA_GAIN
#undef CHAN_INFO_ATTR_VHT_SEG_0
#undef CHAN_INFO_ATTR_VHT_SEG_1

/**
 * hdd_cfg80211_update_pcl() - add pcl info attributes
 * @skb: pointer to sk buff
 * @hdd_ctx: pointer to hdd station context
 * @idx: attribute index
 * @vendor_pcl_list: PCL list
 * @vendor_weight_list: PCL weights
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t
hdd_cfg80211_update_pcl(struct sk_buff *skb,
			uint8_t ch_list_count, int idx,
			uint8_t *vendor_pcl_list, uint8_t *vendor_weight_list)
{
	struct nlattr *nla_attr, *channel;
	int i;

	nla_attr = nla_nest_start(skb, idx);

	if (!nla_attr)
		goto fail;

	for (i = 0; i < ch_list_count; i++) {
		channel = nla_nest_start(skb, i);
		if (!channel)
			goto fail;
		if (nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_PCL_CONFIG_CHANNEL,
			       vendor_pcl_list[i]) ||
		    nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_PCL_CONFIG_WEIGHT,
			       vendor_weight_list[i])) {
			hdd_err("put fail");
			goto fail;
		}
		nla_nest_end(skb, channel);
	}
	nla_nest_end(skb, nla_attr);

	return 0;
fail:
	hdd_err("updating pcl list failed");
	return -EINVAL;
}

static void hdd_get_scan_band(tsap_Config_t *sap_config, eCsrBand *band)
{
	/* Get scan band */
	if ((sap_config->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211B) ||
	   (sap_config->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211G)) {
		*band = eCSR_BAND_24;
	} else if (sap_config->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211A) {
		*band = eCSR_BAND_5G;
	} else if (sap_config->acs_cfg.hw_mode == QCA_ACS_MODE_IEEE80211ANY) {
		*band = eCSR_BAND_ALL;
	}
	/* Auto is not supported currently */
	if (!((*band == eCSR_BAND_24) || (eCSR_BAND_5G == *band))) {
		hdd_err("invalid band");
		*band = eCSR_BAND_24;
	}
}

void hdd_cfg80211_update_acs_config(hdd_adapter_t *adapter,
				    uint8_t reason)
{
	struct sk_buff *skb;
	tsap_Config_t *sap_config;
	uint32_t channel_count = 0, status;
	uint8_t channel_list[QDF_MAX_NUM_CHAN] = {0};
	uint8_t vendor_pcl_list[QDF_MAX_NUM_CHAN] = {0};
	uint8_t vendor_weight_list[QDF_MAX_NUM_CHAN] = {0};
	struct hdd_vendor_acs_chan_params acs_chan_params;
	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	eCsrBand band = eCSR_BAND_24;
	eCsrPhyMode phy_mode;

	if (!hdd_ctx) {
		hdd_err("HDD context is NULL");
		return;
	}

	ENTER();
	sap_config = &adapter->sessionCtx.ap.sapConfig;

	/* Get valid channels for SAP */
	wlan_hdd_sap_get_valid_channellist(adapter,
					   &channel_count, channel_list);

	hdd_update_reg_chan_info(adapter, channel_count, channel_list);
	hdd_get_scan_band(&adapter->sessionCtx.ap.sapConfig, &band);
	/* Get phymode */
	phy_mode = sme_get_phy_mode(WLAN_HDD_GET_HAL_CTX(adapter));

	skb = cfg80211_vendor_event_alloc(hdd_ctx->wiphy,
			&(adapter->wdev),
			EXTSCAN_EVENT_BUF_SIZE + NLMSG_HDRLEN,
			QCA_NL80211_VENDOR_SUBCMD_UPDATE_EXTERNAL_ACS_CONFIG,
			GFP_KERNEL);

	if (!skb) {
		hdd_err("cfg80211_vendor_event_alloc failed");
		return;
	}
	/*
	 * Application expects pcl to be a subset of channel list
	 * Remove all channels which are not in channel list from pcl
	 * and add weight as zero
	 */
	acs_chan_params.channel_count = channel_count;
	acs_chan_params.channel_list = channel_list;
	acs_chan_params.vendor_pcl_list = vendor_pcl_list;
	acs_chan_params.vendor_weight_list = vendor_weight_list;

	hdd_update_vendor_pcl_list(hdd_ctx, &acs_chan_params,
				   sap_config);
	/* Update values in NL buffer */
	if (nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_REASON,
		       reason) ||
	    nla_put_u8(skb,
		QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_IS_SPECTRAL_SUPPORTED,
		       false) ||
	    nla_put_u8(skb,
		QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_IS_OFFLOAD_ENABLED,
		       true) ||
	    nla_put_u8(skb,
		QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_ADD_CHAN_STATS_SUPPORT,
		       true) ||
	    nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHAN_WIDTH,
		       sap_config->acs_cfg.ch_width) ||
	    nla_put(skb, QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_MAC_ADDR,
		    QDF_MAC_ADDR_SIZE, adapter->macAddressCurrent.bytes) ||
	    nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_BAND,
		       band) ||
	    nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_PHY_MODE,
		       phy_mode) ||
	    nla_put(skb, QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHANLIST,
		    channel_count, channel_list)) {
		hdd_err("nla put fail");
		goto fail;
	}
	status = hdd_cfg80211_update_pcl(skb, channel_count,
			QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_PCL,
			vendor_pcl_list, vendor_weight_list);

	if (status != 0)
		goto fail;

	status = hdd_cfg80211_update_channel_info(skb, sap_config,
			QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_EVENT_CHAN_INFO);

	if (status != 0)
		goto fail;

	cfg80211_vendor_event(skb, GFP_KERNEL);
	return;
fail:
	if (skb)
		kfree_skb(skb);
}

static int hdd_create_acs_timer(hdd_adapter_t *adapter)
{
	struct hdd_external_acs_timer_context *timer_context;

	if (adapter->sessionCtx.ap.vendor_acs_timer_initialized)
		return 0;

	hdd_notice("Starting vendor app based ACS");
	timer_context = qdf_mem_malloc(sizeof(*timer_context));
	timer_context->adapter = adapter;

	set_bit(VENDOR_ACS_RESPONSE_PENDING, &adapter->event_flags);
	qdf_mc_timer_init(&adapter->sessionCtx.ap.vendor_acs_timer,
		  QDF_TIMER_TYPE_SW,
		  hdd_acs_response_timeout_handler, timer_context);
	adapter->sessionCtx.ap.vendor_acs_timer_initialized = true;
	return 0;
}

/**
 * __wlan_hdd_cfg80211_do_acs : CFG80211 handler function for DO_ACS Vendor CMD
 * @wiphy:  Linux wiphy struct pointer
 * @wdev:   Linux wireless device struct pointer
 * @data:   ACS information from hostapd
 * @data_len: ACS information length
 *
 * This function handle DO_ACS Vendor command from hostapd, parses ACS config
 * and starts ACS procedure.
 *
 * Return: ACS procedure start status
 */

static int __wlan_hdd_cfg80211_do_acs(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data, int data_len)
{
	struct net_device *ndev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	tsap_Config_t *sap_config;
	struct sk_buff *temp_skbuff;
	int status = -EINVAL, i = 0;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_ACS_MAX + 1];
	bool ht_enabled, ht40_enabled, vht_enabled;
	uint8_t ch_width, hw_mode;

	/* ***Note*** Donot set SME config related to ACS operation here because
	 * ACS operation is not synchronouse and ACS for Second AP may come when
	 * ACS operation for first AP is going on. So only do_acs is split to
	 * seperate start_acs routine. Also SME-PMAC struct that is used to
	 * pass paremeters from HDD to SAP is global. Thus All ACS related SME
	 * config shall be set only from start_acs.
	 */

	/* nla_policy Policy template. Policy not applied as some attributes are
	 * optional and QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST has variable length
	 *
	 * [QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE] = { .type = NLA_U8 },
	 * [QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED] = { .type = NLA_FLAG },
	 * [QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED] = { .type = NLA_FLAG },
	 * [QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED] = { .type = NLA_FLAG },
	 * [QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH] = { .type = NLA_U16 },
	 * [QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST] = { .type = NLA_NESTED },
	 */

	ENTER_DEV(ndev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if (hdd_ctx->config->force_sap_acs &&
	    !hdd_ctx->config->vendor_acs_support) {
		hdd_err("Hostapd ACS rejected as Driver ACS enabled");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		goto out;

	if (cds_is_sub_20_mhz_enabled()) {
		hdd_err("ACS not supported in sub 20 MHz ch wd.");
		status = -EINVAL;
		goto out;
	}

	sap_config = &adapter->sessionCtx.ap.sapConfig;
	qdf_mem_zero(&sap_config->acs_cfg, sizeof(struct sap_acs_cfg));

	status = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_ACS_MAX, data, data_len,
						NULL);
	if (status) {
		hdd_err("Invalid ATTR");
		goto out;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE]) {
		hdd_err("Attr hw_mode failed");
		goto out;
	}
	hw_mode = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE]);
	sap_config->acs_cfg.hw_mode = hw_mode;

	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED])
		ht_enabled =
			nla_get_flag(tb[QCA_WLAN_VENDOR_ATTR_ACS_HT_ENABLED]);
	else
		ht_enabled = 0;

	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED])
		ht40_enabled =
			nla_get_flag(tb[QCA_WLAN_VENDOR_ATTR_ACS_HT40_ENABLED]);
	else
		ht40_enabled = 0;

	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED])
		vht_enabled =
			nla_get_flag(tb[QCA_WLAN_VENDOR_ATTR_ACS_VHT_ENABLED]);
	else
		vht_enabled = 0;

	if (hdd_ctx->config->sap_force_11n_for_11ac) {
		vht_enabled = 0;
		hdd_log(LOG1, FL("VHT is Disabled in ACS"));
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH]) {
		ch_width = nla_get_u16(tb[QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH]);
	} else {
		if (ht_enabled && ht40_enabled)
			ch_width = 40;
		else
			ch_width = 20;
	}

	/* this may be possible, when sap_force_11n_for_11ac is set */
	if ((ch_width == 80 || ch_width == 160) && !vht_enabled) {
		if (ht_enabled && ht40_enabled)
			ch_width = 40;
		else
			ch_width = 20;
	}

	if (ch_width == 80)
		sap_config->acs_cfg.ch_width = CH_WIDTH_80MHZ;
	else if (ch_width == 40)
		sap_config->acs_cfg.ch_width = CH_WIDTH_40MHZ;
	else
		sap_config->acs_cfg.ch_width = CH_WIDTH_20MHZ;

	/* hw_mode = a/b/g: QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST and
	 * QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST attrs are present, and
	 * QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST is used for obtaining the
	 * channel list, QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST is ignored
	 * since it contains the frequency values of the channels in
	 * the channel list.
	 * hw_mode = any: only QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST attr
	 * is present
	 */
	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST]) {
		char *tmp = nla_data(tb[QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST]);
		sap_config->acs_cfg.ch_list_count = nla_len(
					tb[QCA_WLAN_VENDOR_ATTR_ACS_CH_LIST]);
		if (sap_config->acs_cfg.ch_list_count) {
			sap_config->acs_cfg.ch_list = qdf_mem_malloc(
					sizeof(uint8_t) *
					sap_config->acs_cfg.ch_list_count);
			if (sap_config->acs_cfg.ch_list == NULL)
				goto out;

			qdf_mem_copy(sap_config->acs_cfg.ch_list, tmp,
					sap_config->acs_cfg.ch_list_count);
		}
	} else if (tb[QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST]) {
		uint32_t *freq =
			nla_data(tb[QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST]);
		sap_config->acs_cfg.ch_list_count = nla_len(
			tb[QCA_WLAN_VENDOR_ATTR_ACS_FREQ_LIST]) /
				sizeof(uint32_t);
		if (sap_config->acs_cfg.ch_list_count) {
			sap_config->acs_cfg.ch_list = qdf_mem_malloc(
				sap_config->acs_cfg.ch_list_count);
			if (sap_config->acs_cfg.ch_list == NULL) {
				hdd_err("ACS config alloc fail");
				status = -ENOMEM;
				goto out;
			}

			/* convert frequency to channel */
			for (i = 0; i < sap_config->acs_cfg.ch_list_count; i++)
				sap_config->acs_cfg.ch_list[i] =
					ieee80211_frequency_to_channel(freq[i]);
		}
	}

	hdd_debug("get pcl for DO_ACS vendor command");

	/* consult policy manager to get PCL */
	status = cds_get_pcl(CDS_SAP_MODE,
				sap_config->acs_cfg.pcl_channels,
				&sap_config->acs_cfg.pcl_ch_count,
				sap_config->acs_cfg.pcl_channels_weight_list,
				QDF_MAX_NUM_CHAN);
	if (QDF_STATUS_SUCCESS != status)
		hdd_err("Get PCL failed");

	/* ACS override for android */
	if (hdd_ctx->config->sap_p2p_11ac_override && ht_enabled &&
	    !hdd_ctx->config->sap_force_11n_for_11ac) {
		hdd_notice("ACS Config override for 11AC");
		vht_enabled = 1;
		sap_config->acs_cfg.hw_mode = eCSR_DOT11_MODE_11ac;
		sap_config->acs_cfg.ch_width =
					hdd_ctx->config->vhtChannelWidth;
		/* No VHT80 in 2.4G so perform ACS accordingly */
		if (sap_config->acs_cfg.end_ch <= 14 &&
		    sap_config->acs_cfg.ch_width == eHT_CHANNEL_WIDTH_80MHZ) {
			sap_config->acs_cfg.ch_width = eHT_CHANNEL_WIDTH_40MHZ;
			ch_width = 40;
		}
	}

	wlan_hdd_set_acs_ch_range(sap_config, ht_enabled, vht_enabled);

	hdd_notice("ACS Config for wlan%d: HW_MODE: %d ACS_BW: %d HT: %d VHT: %d START_CH: %d END_CH: %d",
		adapter->dev->ifindex, sap_config->acs_cfg.hw_mode,
		ch_width, ht_enabled, vht_enabled,
		sap_config->acs_cfg.start_ch, sap_config->acs_cfg.end_ch);

	sap_config->acs_cfg.is_ht_enabled = ht_enabled;
	sap_config->acs_cfg.is_vht_enabled = vht_enabled;

	if (sap_config->acs_cfg.ch_list_count) {
		hdd_notice("ACS channel list: len: %d",
					sap_config->acs_cfg.ch_list_count);
		for (i = 0; i < sap_config->acs_cfg.ch_list_count; i++)
			hdd_notice("%d ", sap_config->acs_cfg.ch_list[i]);
	}
	sap_config->acs_cfg.acs_mode = true;
	if (test_bit(ACS_IN_PROGRESS, &hdd_ctx->g_event_flags)) {
		/* ***Note*** Completion variable usage is not allowed
		 * here since ACS scan operation may take max 2.2 sec
		 * for 5G band:
		 *   9 Active channel X 40 ms active scan time +
		 *   16 Passive channel X 110ms passive scan time
		 * Since this CFG80211 call lock rtnl mutex, we cannot hold on
		 * for this long. So we split up the scanning part.
		 */
		set_bit(ACS_PENDING, &adapter->event_flags);
		hdd_notice("ACS Pending for %s", adapter->dev->name);
		status = 0;
	} else {
		/* Check if vendor specific acs is enabled */
		if (hdd_ctx->config->vendor_acs_support) {
			sap_config->acs_cfg.hw_mode = hw_mode;
			hdd_create_acs_timer(adapter);
			hdd_update_acs_timer_reason(adapter,
				QCA_WLAN_VENDOR_ACS_SELECT_REASON_INIT);
			if (hdd_ctx->config->acs_support_for_dfs_ltecoex)
				wlan_sap_set_vendor_acs(
					WLAN_HDD_GET_SAP_CTX_PTR(adapter),
					true);
			else
				wlan_sap_set_vendor_acs(
					WLAN_HDD_GET_SAP_CTX_PTR(adapter),
					false);

		} else
			status = wlan_hdd_cfg80211_start_acs(adapter);
	}

out:
	if (0 == status) {
		temp_skbuff = cfg80211_vendor_cmd_alloc_reply_skb(wiphy,
							      NLMSG_HDRLEN);
		if (temp_skbuff != NULL)
			return cfg80211_vendor_cmd_reply(temp_skbuff);
	}
	wlan_hdd_undo_acs(adapter);
	clear_bit(ACS_IN_PROGRESS, &hdd_ctx->g_event_flags);

	return status;
}

/**
 * wlan_hdd_cfg80211_do_acs : CFG80211 handler function for DO_ACS Vendor CMD
 * @wiphy:  Linux wiphy struct pointer
 * @wdev:   Linux wireless device struct pointer
 * @data:   ACS information from hostapd
 * @data_len: ACS information len
 *
 * This function handle DO_ACS Vendor command from hostapd, parses ACS config
 * and starts ACS procedure.
 *
 * Return: ACS procedure start status
 */

static int wlan_hdd_cfg80211_do_acs(struct wiphy *wiphy,
				    struct wireless_dev *wdev,
				    const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_do_acs(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_undo_acs : Do cleanup of DO_ACS
 * @adapter:  Pointer to adapter struct
 *
 * This function handle cleanup of what was done in DO_ACS, including free
 * memory.
 *
 * Return: void
 */

void wlan_hdd_undo_acs(hdd_adapter_t *adapter)
{
	if (adapter == NULL)
		return;
	if (adapter->sessionCtx.ap.sapConfig.acs_cfg.ch_list) {
		qdf_mem_free(adapter->sessionCtx.ap.sapConfig.acs_cfg.ch_list);
		adapter->sessionCtx.ap.sapConfig.acs_cfg.ch_list = NULL;
	}
}

/**
 * wlan_hdd_cfg80211_start_pending_acs : Start pending ACS procedure for SAP
 * @work:  Linux workqueue struct pointer for ACS work
 *
 * This function starts the ACS procedure which was marked pending when an ACS
 * procedure was in progress for a concurrent SAP interface.
 *
 * Return: None
 */

static void wlan_hdd_cfg80211_start_pending_acs(struct work_struct *work)
{
	hdd_adapter_t *adapter = container_of(work, hdd_adapter_t,
							acs_pending_work.work);
	wlan_hdd_cfg80211_start_acs(adapter);
}

/**
 * wlan_hdd_cfg80211_acs_ch_select_evt: Callback function for ACS evt
 * @adapter: Pointer to SAP adapter struct
 * @pri_channel: SAP ACS procedure selected Primary channel
 * @sec_channel: SAP ACS procedure selected secondary channel
 *
 * This is a callback function from SAP module on ACS procedure is completed.
 * This function send the ACS selected channel information to hostapd
 *
 * Return: None
 */

void wlan_hdd_cfg80211_acs_ch_select_evt(hdd_adapter_t *adapter)
{
	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	tsap_Config_t *sap_cfg = &(WLAN_HDD_GET_AP_CTX_PTR(adapter))->sapConfig;
	struct sk_buff *vendor_event;
	int ret_val;
	hdd_adapter_t *con_sap_adapter;
	uint16_t ch_width;

	vendor_event = cfg80211_vendor_event_alloc(hdd_ctx->wiphy,
			&(adapter->wdev),
			4 * sizeof(u8) + 1 * sizeof(u16) + 4 + NLMSG_HDRLEN,
			QCA_NL80211_VENDOR_SUBCMD_DO_ACS_INDEX,
			GFP_KERNEL);

	if (!vendor_event) {
		hdd_err("cfg80211_vendor_event_alloc failed");
		return;
	}

	ret_val = nla_put_u8(vendor_event,
				QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_CHANNEL,
				sap_cfg->acs_cfg.pri_ch);
	if (ret_val) {
		hdd_err("QCA_WLAN_VENDOR_ATTR_ACS_PRIMARY_CHANNEL put fail");
		kfree_skb(vendor_event);
		return;
	}

	ret_val = nla_put_u8(vendor_event,
				QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_CHANNEL,
				sap_cfg->acs_cfg.ht_sec_ch);
	if (ret_val) {
		hdd_err("QCA_WLAN_VENDOR_ATTR_ACS_SECONDARY_CHANNEL put fail");
		kfree_skb(vendor_event);
		return;
	}

	ret_val = nla_put_u8(vendor_event,
			QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL,
			sap_cfg->acs_cfg.vht_seg0_center_ch);
	if (ret_val) {
		hdd_err("QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG0_CENTER_CHANNEL put fail");
		kfree_skb(vendor_event);
		return;
	}

	ret_val = nla_put_u8(vendor_event,
			QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL,
			sap_cfg->acs_cfg.vht_seg1_center_ch);
	if (ret_val) {
		hdd_err("QCA_WLAN_VENDOR_ATTR_ACS_VHT_SEG1_CENTER_CHANNEL put fail");
		kfree_skb(vendor_event);
		return;
	}

	if (sap_cfg->acs_cfg.ch_width == CH_WIDTH_80MHZ)
		ch_width = 80;
	else if (sap_cfg->acs_cfg.ch_width == CH_WIDTH_40MHZ)
		ch_width = 40;
	else
		ch_width = 20;

	ret_val = nla_put_u16(vendor_event,
				QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH,
				ch_width);
	if (ret_val) {
		hdd_err("QCA_WLAN_VENDOR_ATTR_ACS_CHWIDTH put fail");
		kfree_skb(vendor_event);
		return;
	}
	if (sap_cfg->acs_cfg.pri_ch > 14)
		ret_val = nla_put_u8(vendor_event,
					QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE,
					QCA_ACS_MODE_IEEE80211A);
	else
		ret_val = nla_put_u8(vendor_event,
					QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE,
					QCA_ACS_MODE_IEEE80211G);

	if (ret_val) {
		hdd_err("QCA_WLAN_VENDOR_ATTR_ACS_HW_MODE put fail");
		kfree_skb(vendor_event);
		return;
	}

	hdd_notice("ACS result for wlan%d: PRI_CH: %d SEC_CH: %d VHT_SEG0: %d VHT_SEG1: %d ACS_BW: %d",
		adapter->dev->ifindex, sap_cfg->acs_cfg.pri_ch,
		sap_cfg->acs_cfg.ht_sec_ch, sap_cfg->acs_cfg.vht_seg0_center_ch,
		sap_cfg->acs_cfg.vht_seg1_center_ch, ch_width);

	cfg80211_vendor_event(vendor_event, GFP_KERNEL);
	/* ***Note*** As already mentioned Completion variable usage is not
	 * allowed here since ACS scan operation may take max 2.2 sec.
	 * Further in AP-AP mode pending ACS is resumed here to serailize ACS
	 * operation.
	 * TODO: Delayed operation is used since SME-PMAC strut is global. Thus
	 * when Primary AP ACS is complete and secondary AP ACS is started here
	 * immediately, Primary AP start_bss may come inbetween ACS operation
	 * and overwrite Sec AP ACS paramters. Thus Sec AP ACS is executed with
	 * delay. This path and below constraint will be removed on sessionizing
	 * SAP acs parameters and decoupling SAP from PMAC (WIP).
	 * As per design constraint user space control application must take
	 * care of serailizing hostapd start for each VIF in AP-AP mode to avoid
	 * this code path. Sec AP hostapd should be started after Primary AP
	 * start beaconing which can be confirmed by getchannel iwpriv command
	 */

	con_sap_adapter = hdd_get_con_sap_adapter(adapter, false);
	if (con_sap_adapter &&
		test_bit(ACS_PENDING, &con_sap_adapter->event_flags)) {
		INIT_DELAYED_WORK(&con_sap_adapter->acs_pending_work,
				      wlan_hdd_cfg80211_start_pending_acs);
		/* Lets give 500ms for OBSS + START_BSS to complete */
		schedule_delayed_work(&con_sap_adapter->acs_pending_work,
							msecs_to_jiffies(500));
		clear_bit(ACS_PENDING, &con_sap_adapter->event_flags);
	}

	return;
}

static int
__wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
					 struct wireless_dev *wdev,
					 const void *data,
					 int data_len)
{
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	struct sk_buff *skb = NULL;
	uint32_t fset = 0;
	int ret;

	/* ENTER_DEV() intentionally not used in a frequently invoked API */

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	ret = wlan_hdd_validate_context(pHddCtx);
	if (ret)
		return ret;

	if (wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) {
		hdd_notice("Infra Station mode is supported by driver");
		fset |= WIFI_FEATURE_INFRA;
	}
	if (true == hdd_is_5g_supported(pHddCtx)) {
		hdd_notice("INFRA_5G is supported by firmware");
		fset |= WIFI_FEATURE_INFRA_5G;
	}
#ifdef WLAN_FEATURE_P2P
	if ((wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) &&
	    (wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_GO))) {
		hdd_notice("WiFi-Direct is supported by driver");
		fset |= WIFI_FEATURE_P2P;
	}
#endif
	fset |= WIFI_FEATURE_SOFT_AP;

	/* HOTSPOT is a supplicant feature, enable it by default */
	fset |= WIFI_FEATURE_HOTSPOT;

#ifdef FEATURE_WLAN_EXTSCAN
	if (pHddCtx->config->extscan_enabled &&
	    sme_is_feature_supported_by_fw(EXTENDED_SCAN)) {
		hdd_notice("EXTScan is supported by firmware");
		fset |= WIFI_FEATURE_EXTSCAN | WIFI_FEATURE_HAL_EPNO;
	}
#endif
	if (wlan_hdd_nan_is_supported()) {
		hdd_notice("NAN is supported by firmware");
		fset |= WIFI_FEATURE_NAN;
	}
	if (sme_is_feature_supported_by_fw(RTT)) {
		hdd_notice("RTT is supported by firmware");
		fset |= WIFI_FEATURE_D2D_RTT;
		fset |= WIFI_FEATURE_D2AP_RTT;
	}
#ifdef FEATURE_WLAN_SCAN_PNO
	if (pHddCtx->config->configPNOScanSupport &&
	    sme_is_feature_supported_by_fw(PNO)) {
		hdd_notice("PNO is supported by firmware");
		fset |= WIFI_FEATURE_PNO;
	}
#endif
	fset |= WIFI_FEATURE_ADDITIONAL_STA;
#ifdef FEATURE_WLAN_TDLS
	if ((true == pHddCtx->config->fEnableTDLSSupport) &&
	    sme_is_feature_supported_by_fw(TDLS)) {
		hdd_notice("TDLS is supported by firmware");
		fset |= WIFI_FEATURE_TDLS;
	}
	if (sme_is_feature_supported_by_fw(TDLS) &&
	    (true == pHddCtx->config->fEnableTDLSOffChannel) &&
	    sme_is_feature_supported_by_fw(TDLS_OFF_CHANNEL)) {
		hdd_notice("TDLS off-channel is supported by firmware");
		fset |= WIFI_FEATURE_TDLS_OFFCHANNEL;
	}
#endif
#ifdef WLAN_AP_STA_CONCURRENCY
	fset |= WIFI_FEATURE_AP_STA;
#endif
	fset |= WIFI_FEATURE_RSSI_MONITOR;
	fset |= WIFI_FEATURE_TX_TRANSMIT_POWER;

	if (hdd_link_layer_stats_supported())
		fset |= WIFI_FEATURE_LINK_LAYER_STATS;

	skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, sizeof(fset) +
						  NLMSG_HDRLEN);
	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -EINVAL;
	}
	hdd_notice("Supported Features : 0x%x", fset);
	if (nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_FEATURE_SET, fset)) {
		hdd_err("nla put fail");
		goto nla_put_failure;
	}
	ret = cfg80211_vendor_cmd_reply(skb);
	return ret;
nla_put_failure:
	kfree_skb(skb);
	return -EINVAL;
}

/**
 * wlan_hdd_cfg80211_get_supported_features() - get supported features
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * Return:   Return the Success or Failure code.
 */
static int
wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data, int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_supported_features(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_set_scanning_mac_oui() - set scan MAC
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * Set the MAC address that is to be used for scanning.
 *
 * Return:   Return the Success or Failure code.
 */
static int
__wlan_hdd_cfg80211_set_scanning_mac_oui(struct wiphy *wiphy,
					 struct wireless_dev *wdev,
					 const void *data,
					 int data_len)
{
	tpSirScanMacOui pReqMsg = NULL;
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_SET_SCANNING_MAC_OUI_MAX + 1];
	QDF_STATUS status;
	int ret;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	ret = wlan_hdd_validate_context(pHddCtx);
	if (ret)
		return ret;

	if (false == pHddCtx->config->enable_mac_spoofing) {
		hdd_warn("MAC address spoofing is not enabled");
		return -ENOTSUPP;
	}

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_SET_SCANNING_MAC_OUI_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}
	pReqMsg = qdf_mem_malloc(sizeof(*pReqMsg));
	if (!pReqMsg) {
		hdd_err("qdf_mem_malloc failed");
		return -ENOMEM;
	}
	if (!tb[QCA_WLAN_VENDOR_ATTR_SET_SCANNING_MAC_OUI]) {
		hdd_err("attr mac oui failed");
		goto fail;
	}
	nla_memcpy(&pReqMsg->oui[0],
		   tb[QCA_WLAN_VENDOR_ATTR_SET_SCANNING_MAC_OUI],
		   sizeof(pReqMsg->oui));
	hdd_notice("Oui (%02x:%02x:%02x)", pReqMsg->oui[0],
	       pReqMsg->oui[1], pReqMsg->oui[2]);
	status = sme_set_scanning_mac_oui(pHddCtx->hHal, pReqMsg);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_set_scanning_mac_oui failed(err=%d)", status);
		goto fail;
	}
	return 0;
fail:
	qdf_mem_free(pReqMsg);
	return -EINVAL;
}

/**
 * wlan_hdd_cfg80211_set_scanning_mac_oui() - set scan MAC
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * Set the MAC address that is to be used for scanning.  This is an
 * SSR-protecting wrapper function.
 *
 * Return:   Return the Success or Failure code.
 */
static int
wlan_hdd_cfg80211_set_scanning_mac_oui(struct wiphy *wiphy,
				       struct wireless_dev *wdev,
				       const void *data,
				       int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_scanning_mac_oui(wiphy, wdev,
						       data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_get_concurrency_matrix() - to retrieve concurrency matrix
 * @wiphy: pointer phy adapter
 * @wdev: pointer to wireless device structure
 * @data: pointer to data buffer
 * @data_len: length of data
 *
 * This routine will give concurrency matrix
 *
 * Return: int status code
 */
static int __wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
					 struct wireless_dev *wdev,
					 const void *data,
					 int data_len)
{
	uint32_t feature_set_matrix[CDS_MAX_FEATURE_SET] = {0};
	uint8_t i, feature_sets, max_feature_sets;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_MAX + 1];
	struct sk_buff *reply_skb;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int ret;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_MAX,
			data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	/* Parse and fetch max feature set */
	if (!tb[QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_CONFIG_PARAM_SET_SIZE_MAX]) {
		hdd_err("Attr max feature set size failed");
		return -EINVAL;
	}
	max_feature_sets = nla_get_u32(tb[
		QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_CONFIG_PARAM_SET_SIZE_MAX]);
	hdd_info("Max feature set size: %d", max_feature_sets);

	/* Fill feature combination matrix */
	feature_sets = 0;
	feature_set_matrix[feature_sets++] = WIFI_FEATURE_INFRA |
						WIFI_FEATURE_P2P;
	feature_set_matrix[feature_sets++] = WIFI_FEATURE_INFRA |
						WIFI_FEATURE_NAN;
	/* Add more feature combinations here */

	feature_sets = QDF_MIN(feature_sets, max_feature_sets);
	hdd_info("Number of feature sets: %d", feature_sets);
	hdd_info("Feature set matrix");
	for (i = 0; i < feature_sets; i++)
		hdd_info("[%d] 0x%02X", i, feature_set_matrix[i]);

	reply_skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, sizeof(u32) +
			sizeof(u32) * feature_sets + NLMSG_HDRLEN);
	if (!reply_skb) {
		hdd_err("Feature set matrix: buffer alloc fail");
		return -ENOMEM;
	}

	if (nla_put_u32(reply_skb,
		QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_RESULTS_SET_SIZE,
		feature_sets) ||
	    nla_put(reply_skb,
		QCA_WLAN_VENDOR_ATTR_GET_CONCURRENCY_MATRIX_RESULTS_SET,
		sizeof(u32) * feature_sets,
		feature_set_matrix)) {
			hdd_err("nla put fail");
			kfree_skb(reply_skb);
			return -EINVAL;
	}
	return cfg80211_vendor_cmd_reply(reply_skb);
}

/**
 * wlan_hdd_cfg80211_get_concurrency_matrix() - get concurrency matrix
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * Retrieves the concurrency feature set matrix
 *
 * Return: 0 on success, negative errno on failure
 */
static int
wlan_hdd_cfg80211_get_concurrency_matrix(struct wiphy *wiphy,
				       struct wireless_dev *wdev,
				       const void *data,
				       int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_concurrency_matrix(wiphy, wdev,
							data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_cfg80211_set_feature() - Set the bitmask for supported features
 * @feature_flags: pointer to the byte array of features.
 * @feature: Feature to be turned ON in the byte array.
 *
 * Return: None
 *
 * This is called to turn ON or SET the feature flag for the requested feature.
 **/
#define NUM_BITS_IN_BYTE       8
static void wlan_hdd_cfg80211_set_feature(uint8_t *feature_flags,
					  uint8_t feature)
{
	uint32_t index;
	uint8_t bit_mask;

	index = feature / NUM_BITS_IN_BYTE;
	bit_mask = 1 << (feature % NUM_BITS_IN_BYTE);
	feature_flags[index] |= bit_mask;
}

/**
 * __wlan_hdd_cfg80211_get_features() - Get the Driver Supported features
 * @wiphy: pointer to wireless wiphy structure.
 * @wdev: pointer to wireless_dev structure.
 * @data: Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This is called when wlan driver needs to send supported feature set to
 * supplicant upon a request/query from the supplicant.
 *
 * Return: Return the Success or Failure code.
 **/
#define MAX_CONCURRENT_CHAN_ON_24G    2
#define MAX_CONCURRENT_CHAN_ON_5G     2
static int
__wlan_hdd_cfg80211_get_features(struct wiphy *wiphy,
				 struct wireless_dev *wdev,
				 const void *data, int data_len)
{
	struct sk_buff *skb = NULL;
	uint32_t dbs_capability = 0;
	bool one_by_one_dbs, two_by_two_dbs;
	QDF_STATUS ret = QDF_STATUS_E_FAILURE;
	int ret_val;

	uint8_t feature_flags[(NUM_QCA_WLAN_VENDOR_FEATURES + 7) / 8] = {0};
	hdd_context_t *hdd_ctx_ptr = wiphy_priv(wiphy);

	ENTER_DEV(wdev->netdev);

	ret_val = wlan_hdd_validate_context(hdd_ctx_ptr);
	if (ret_val)
		return ret_val;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if (roaming_offload_enabled(hdd_ctx_ptr)) {
		hdd_notice("Key Mgmt Offload is supported");
		wlan_hdd_cfg80211_set_feature(feature_flags,
				QCA_WLAN_VENDOR_FEATURE_KEY_MGMT_OFFLOAD);
	}

	wlan_hdd_cfg80211_set_feature(feature_flags,
				QCA_WLAN_VENDOR_FEATURE_SUPPORT_HW_MODE_ANY);
	if (wma_is_scan_simultaneous_capable())
		wlan_hdd_cfg80211_set_feature(feature_flags,
			QCA_WLAN_VENDOR_FEATURE_OFFCHANNEL_SIMULTANEOUS);

	if (wma_is_p2p_lo_capable())
		wlan_hdd_cfg80211_set_feature(feature_flags,
			QCA_WLAN_VENDOR_FEATURE_P2P_LISTEN_OFFLOAD);

	skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, sizeof(feature_flags) +
			NLMSG_HDRLEN);

	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	if (nla_put(skb, QCA_WLAN_VENDOR_ATTR_FEATURE_FLAGS,
			sizeof(feature_flags), feature_flags))
		goto nla_put_failure;

	ret = wma_get_dbs_hw_modes(&one_by_one_dbs, &two_by_two_dbs);
	if (QDF_STATUS_SUCCESS == ret) {
		if (one_by_one_dbs)
			dbs_capability = DRV_DBS_CAPABILITY_1X1;

		if (two_by_two_dbs)
			dbs_capability = DRV_DBS_CAPABILITY_2X2;

		if (!one_by_one_dbs && !two_by_two_dbs)
			dbs_capability = DRV_DBS_CAPABILITY_DISABLED;
	} else {
		hdd_err("wma_get_dbs_hw_mode failed");
		dbs_capability = DRV_DBS_CAPABILITY_DISABLED;
	}

	hdd_info("dbs_capability is %d", dbs_capability);

	if (nla_put_u32(skb,
			QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_2_4_BAND,
			MAX_CONCURRENT_CHAN_ON_24G))
		goto nla_put_failure;

	if (nla_put_u32(skb,
			QCA_WLAN_VENDOR_ATTR_MAX_CONCURRENT_CHANNELS_5_0_BAND,
			MAX_CONCURRENT_CHAN_ON_5G))
		goto nla_put_failure;

	return cfg80211_vendor_cmd_reply(skb);

nla_put_failure:
	kfree_skb(skb);
	return -EINVAL;
}

/**
 * wlan_hdd_cfg80211_get_features() - Get the Driver Supported features
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This is called when wlan driver needs to send supported feature set to
 * supplicant upon a request/query from the supplicant.
 *
 * Return:   Return the Success or Failure code.
 */
static int
wlan_hdd_cfg80211_get_features(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_features(wiphy, wdev,
					       data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#define PARAM_NUM_NW \
	QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_WHITE_LIST_SSID_NUM_NETWORKS
#define PARAM_SET_BSSID \
	QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_BSSID
#define PRAM_SSID_LIST QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_WHITE_LIST_SSID_LIST
#define PARAM_LIST_SSID  QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_WHITE_LIST_SSID

/**
 * __wlan_hdd_cfg80211_set_ext_roam_params() - Settings for roaming parameters
 * @wiphy:                 The wiphy structure
 * @wdev:                  The wireless device
 * @data:                  Data passed by framework
 * @data_len:              Parameters to be configured passed as data
 *
 * The roaming related parameters are configured by the framework
 * using this interface.
 *
 * Return: Return either success or failure code.
 */
static int
__wlan_hdd_cfg80211_set_ext_roam_params(struct wiphy *wiphy,
	struct wireless_dev *wdev, const void *data, int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	uint8_t session_id;
	struct roam_ext_params roam_params;
	uint32_t cmd_type, req_id;
	struct nlattr *curr_attr = NULL;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_MAX + 1];
	struct nlattr *tb2[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_MAX + 1];
	int rem, i;
	uint32_t buf_len = 0;
	uint32_t count;
	int ret;

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	ret = wlan_hdd_validate_context(pHddCtx);
	if (ret)
		return ret;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_MAX,
		data, data_len,
		NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}
	/* Parse and fetch Command Type*/
	if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD]) {
		hdd_err("roam cmd type failed");
		goto fail;
	}
	session_id = pAdapter->sessionId;
	qdf_mem_set(&roam_params, sizeof(roam_params), 0);
	cmd_type = nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_ROAMING_SUBCMD]);
	if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID]) {
		hdd_err("attr request id failed");
		goto fail;
	}
	req_id = nla_get_u32(
		tb[QCA_WLAN_VENDOR_ATTR_ROAMING_REQ_ID]);
	hdd_debug("Req Id (%d)", req_id);
	hdd_debug("Cmd Type (%d)", cmd_type);
	switch (cmd_type) {
	case QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SSID_WHITE_LIST:
		i = 0;
		if (tb[PARAM_NUM_NW]) {
			count = nla_get_u32(
			tb[PARAM_NUM_NW]);
		} else {
			hdd_err("Number of networks is not provided");
			goto fail;
		}

		if (count &&
		tb[PRAM_SSID_LIST]) {
			nla_for_each_nested(curr_attr,
			tb[PRAM_SSID_LIST], rem) {
				if (nla_parse(tb2,
					QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_MAX,
					nla_data(curr_attr), nla_len(curr_attr),
					NULL)) {
					hdd_err("nla_parse failed");
					goto fail;
				}
				/* Parse and Fetch allowed SSID list*/
				if (!tb2[PARAM_LIST_SSID]) {
					hdd_err("attr allowed ssid failed");
					goto fail;
				}
				buf_len = nla_len(tb2[PARAM_LIST_SSID]);
				/*
				 * Upper Layers include a null termination
				 * character. Check for the actual permissible
				 * length of SSID and also ensure not to copy
				 * the NULL termination character to the driver
				 * buffer.
				 */
				if (buf_len && (i < MAX_SSID_ALLOWED_LIST) &&
				    ((buf_len - 1) <=
				    SIR_MAC_MAX_SSID_LENGTH)) {
					nla_memcpy(
					roam_params.ssid_allowed_list[i].ssId,
					tb2[PARAM_LIST_SSID], buf_len - 1);
					roam_params.ssid_allowed_list[i].length
					 = buf_len - 1;
					hdd_debug("SSID[%d]: %.*s,length = %d",
					i,
					roam_params.ssid_allowed_list[i].length,
					roam_params.ssid_allowed_list[i].ssId,
					roam_params.ssid_allowed_list[i].length);
					i++;
				} else {
					hdd_err("Invalid buffer length");
				}
			}
		}
		if (i != count) {
			hdd_err("Invalid number of SSIDs i = %d, count = %d",
						i, count);
			goto fail;
		}

		roam_params.num_ssid_allowed_list = i;
		hdd_debug("Num of Allowed SSID %d",
			roam_params.num_ssid_allowed_list);
		sme_update_roam_params(pHddCtx->hHal, session_id,
				roam_params, REASON_ROAM_SET_SSID_ALLOWED);
		break;
	case QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SET_EXTSCAN_ROAM_PARAMS:
		/* Parse and fetch 5G Boost Threshold */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_BOOST_THRESHOLD]) {
			hdd_err("5G boost threshold failed");
			goto fail;
		}
		roam_params.raise_rssi_thresh_5g = nla_get_s32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_BOOST_THRESHOLD]);
		hdd_debug("5G Boost Threshold (%d)",
			roam_params.raise_rssi_thresh_5g);
		/* Parse and fetch 5G Penalty Threshold */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_PENALTY_THRESHOLD]) {
			hdd_err("5G penalty threshold failed");
			goto fail;
		}
		roam_params.drop_rssi_thresh_5g = nla_get_s32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_PENALTY_THRESHOLD]);
		hdd_debug("5G Penalty Threshold (%d)",
			roam_params.drop_rssi_thresh_5g);
		/* Parse and fetch 5G Boost Factor */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_BOOST_FACTOR]) {
			hdd_err("5G boost Factor failed");
			goto fail;
		}
		roam_params.raise_factor_5g = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_BOOST_FACTOR]);
		hdd_debug("5G Boost Factor (%d)",
			roam_params.raise_factor_5g);
		/* Parse and fetch 5G Penalty factor */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_PENALTY_FACTOR]) {
			hdd_err("5G Penalty Factor failed");
			goto fail;
		}
		roam_params.drop_factor_5g = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_PENALTY_FACTOR]);
		hdd_debug("5G Penalty factor (%d)",
			roam_params.drop_factor_5g);
		/* Parse and fetch 5G Max Boost */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_MAX_BOOST]) {
			hdd_err("5G Max Boost failed");
			goto fail;
		}
		roam_params.max_raise_rssi_5g = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_A_BAND_MAX_BOOST]);
		hdd_debug("5G Max Boost (%d)",
			roam_params.max_raise_rssi_5g);
		/* Parse and fetch Rssi Diff */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_LAZY_ROAM_HISTERESYS]) {
			hdd_err("Rssi Diff failed");
			goto fail;
		}
		roam_params.rssi_diff = nla_get_s32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_LAZY_ROAM_HISTERESYS]);
		hdd_debug("RSSI Diff (%d)",
			roam_params.rssi_diff);
		/* Parse and fetch Alert Rssi Threshold */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_ALERT_ROAM_RSSI_TRIGGER]) {
			hdd_err("Alert Rssi Threshold failed");
			goto fail;
		}
		roam_params.alert_rssi_threshold = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_ALERT_ROAM_RSSI_TRIGGER]);
		hdd_debug("Alert RSSI Threshold (%d)",
			roam_params.alert_rssi_threshold);
		sme_update_roam_params(pHddCtx->hHal, session_id,
			roam_params,
			REASON_ROAM_EXT_SCAN_PARAMS_CHANGED);
		break;
	case QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SET_LAZY_ROAM:
		/* Parse and fetch Activate Good Rssi Roam */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_ENABLE]) {
			hdd_err("Activate Good Rssi Roam failed");
			goto fail;
		}
		roam_params.good_rssi_roam = nla_get_s32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_ENABLE]);
		hdd_debug("Activate Good Rssi Roam (%d)",
			roam_params.good_rssi_roam);
		sme_update_roam_params(pHddCtx->hHal, session_id,
			roam_params, REASON_ROAM_GOOD_RSSI_CHANGED);
		break;
	case QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SET_BSSID_PREFS:
		/* Parse and fetch number of preferred BSSID */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_NUM_BSSID]) {
			hdd_err("attr num of preferred bssid failed");
			goto fail;
		}
		count = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_NUM_BSSID]);
		if (count > MAX_BSSID_FAVORED) {
			hdd_err("Preferred BSSID count %u exceeds max %u",
				count, MAX_BSSID_FAVORED);
			goto fail;
		}
		hdd_debug("Num of Preferred BSSID (%d)", count);
		i = 0;
		nla_for_each_nested(curr_attr,
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PREFS],
			rem) {

			if (i == count) {
				hdd_warn("Ignoring excess Preferred BSSID");
				break;
			}

			if (nla_parse(tb2,
				QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_MAX,
				nla_data(curr_attr), nla_len(curr_attr),
				NULL)) {
				hdd_err("nla_parse failed");
				goto fail;
			}
			/* Parse and fetch MAC address */
			if (!tb2[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_BSSID]) {
				hdd_err("attr mac address failed");
				goto fail;
			}
			nla_memcpy(roam_params.bssid_favored[i].bytes,
				tb2[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_BSSID],
				QDF_MAC_ADDR_SIZE);
			hdd_debug(MAC_ADDRESS_STR,
			    MAC_ADDR_ARRAY(roam_params.bssid_favored[i].bytes));
			/* Parse and fetch preference factor*/
			if (!tb2[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_RSSI_MODIFIER]) {
				hdd_err("BSSID Preference score failed");
				goto fail;
			}
			roam_params.bssid_favored_factor[i] = nla_get_u32(
				tb2[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_LAZY_ROAM_RSSI_MODIFIER]);
			hdd_debug("BSSID Preference score (%d)",
				roam_params.bssid_favored_factor[i]);
			i++;
		}
		if (i < count)
			hdd_warn("Num Preferred BSSID %u less than expected %u",
				 i, count);
		roam_params.num_bssid_favored = i;
		sme_update_roam_params(pHddCtx->hHal, session_id,
			roam_params, REASON_ROAM_SET_FAVORED_BSSID);
		break;
	case QCA_WLAN_VENDOR_ATTR_ROAM_SUBCMD_SET_BLACKLIST_BSSID:
		/* Parse and fetch number of blacklist BSSID */
		if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_NUM_BSSID]) {
			hdd_err("attr num of blacklist bssid failed");
			goto fail;
		}
		count = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS_NUM_BSSID]);
		if (count > MAX_BSSID_AVOID_LIST) {
			hdd_err("Blacklist BSSID count %u exceeds max %u",
				count, MAX_BSSID_AVOID_LIST);
			goto fail;
		}
		hdd_debug("Num of blacklist BSSID (%d)", count);
		i = 0;

		if (count &&
		    tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS]) {
			nla_for_each_nested(curr_attr,
			tb[QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_SET_BSSID_PARAMS],
			rem) {

				if (i == count) {
					hdd_warn("Ignoring excess Blacklist BSSID");
					break;
				}

				if (nla_parse(tb2,
				   QCA_WLAN_VENDOR_ATTR_ROAMING_PARAM_MAX,
				   nla_data(curr_attr), nla_len(curr_attr),
				   NULL)) {
					hdd_err("nla_parse failed");
					goto fail;
				}
				/* Parse and fetch MAC address */
				if (!tb2[PARAM_SET_BSSID]) {
					hdd_err("attr blacklist addr failed");
					goto fail;
				}
				nla_memcpy(
				   roam_params.bssid_avoid_list[i].bytes,
				   tb2[PARAM_SET_BSSID], QDF_MAC_ADDR_SIZE);
				hdd_debug(MAC_ADDRESS_STR,
					MAC_ADDR_ARRAY(
					roam_params.bssid_avoid_list[i].bytes));
				i++;
			}
		}
		if (i < count)
			hdd_warn("Num Blacklist BSSID %u less than expected %u",
				 i, count);
		roam_params.num_bssid_avoid_list = i;
		sme_update_roam_params(pHddCtx->hHal, session_id,
			roam_params, REASON_ROAM_SET_BLACKLIST_BSSID);
		break;
	}
	return 0;
fail:
	return -EINVAL;
}
#undef PARAM_NUM_NW
#undef PARAM_SET_BSSID
#undef PRAM_SSID_LIST
#undef PARAM_LIST_SSID


/**
 * wlan_hdd_cfg80211_set_ext_roam_params() - set ext scan roam params
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * Return:   Return the Success or Failure code.
 */
static int
wlan_hdd_cfg80211_set_ext_roam_params(struct wiphy *wiphy,
				struct wireless_dev *wdev,
				const void *data,
				int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_ext_roam_params(wiphy, wdev,
							data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct nla_policy
wlan_hdd_set_no_dfs_flag_config_policy[QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG_MAX
				       +1] = {
	[QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG] = {.type = NLA_U32 },
};

/**
 *  wlan_hdd_check_dfs_channel_for_adapter() - check dfs channel in adapter
 *  @hdd_ctx:      HDD context
 *  @device_mode:    device mode
 *  Return:         bool
 */
static bool wlan_hdd_check_dfs_channel_for_adapter(hdd_context_t *hdd_ctx,
				enum tQDF_ADAPTER_MODE device_mode)
{
	hdd_adapter_t *adapter;
	hdd_adapter_list_node_t *adapter_node = NULL, *next = NULL;
	hdd_ap_ctx_t *ap_ctx;
	hdd_station_ctx_t *sta_ctx;
	QDF_STATUS qdf_status;

	qdf_status = hdd_get_front_adapter(hdd_ctx,
					   &adapter_node);

	while ((NULL != adapter_node) &&
	       (QDF_STATUS_SUCCESS == qdf_status)) {
		adapter = adapter_node->pAdapter;

		if ((device_mode == adapter->device_mode) &&
		    (device_mode == QDF_SAP_MODE)) {
			ap_ctx =
				WLAN_HDD_GET_AP_CTX_PTR(adapter);

			/*
			 *  if there is SAP already running on DFS channel,
			 *  do not disable scan on dfs channels. Note that
			 *  with SAP on DFS, there cannot be conurrency on
			 *  single radio. But then we can have multiple
			 *  radios !!
			 */
			if (CHANNEL_STATE_DFS ==
			    cds_get_channel_state(
				    ap_ctx->operatingChannel)) {
				hdd_err("SAP running on DFS channel");
				return true;
			}
		}

		if ((device_mode == adapter->device_mode) &&
		    (device_mode == QDF_STA_MODE)) {
			sta_ctx =
				WLAN_HDD_GET_STATION_CTX_PTR(adapter);

			/*
			 *  if STA is already connected on DFS channel,
			 *  do not disable scan on dfs channels
			 */
			if (hdd_conn_is_connected(sta_ctx) &&
			    (CHANNEL_STATE_DFS ==
			     cds_get_channel_state(
				     sta_ctx->conn_info.operationChannel))) {
				hdd_err("client connected on DFS channel");
				return true;
			}
		}

		qdf_status = hdd_get_next_adapter(hdd_ctx,
						  adapter_node,
						  &next);
		adapter_node = next;
	}

	return false;
}

/**
 * wlan_hdd_disable_dfs_chan_scan() - disable/enable DFS channels
 * @hdd_ctx: HDD context within host driver
 * @adapter: Adapter pointer
 * @no_dfs_flag: If TRUE, DFS channels cannot be used for scanning
 *
 * Loops through devices to see who is operating on DFS channels
 * and then disables/enables DFS channels by calling SME API.
 * Fails the disable request if any device is active on a DFS channel.
 *
 * Return: 0 or other error codes.
 */

int wlan_hdd_disable_dfs_chan_scan(hdd_context_t *hdd_ctx,
				   hdd_adapter_t *adapter,
				   uint32_t no_dfs_flag)
{
	tHalHandle h_hal = WLAN_HDD_GET_HAL_CTX(adapter);
	QDF_STATUS status;
	int ret_val = -EPERM;

	if (no_dfs_flag == hdd_ctx->config->enableDFSChnlScan) {
		if (no_dfs_flag) {
			status = wlan_hdd_check_dfs_channel_for_adapter(
				hdd_ctx, QDF_STA_MODE);

			if (true == status)
				return -EOPNOTSUPP;

			status = wlan_hdd_check_dfs_channel_for_adapter(
				hdd_ctx, QDF_SAP_MODE);

			if (true == status)
				return -EOPNOTSUPP;
		}

		hdd_ctx->config->enableDFSChnlScan = !no_dfs_flag;

		hdd_abort_mac_scan_all_adapters(hdd_ctx);

		/*
		 *  call the SME API to tunnel down the new channel list
		 *  to the firmware
		 */
		status = sme_handle_dfs_chan_scan(
			h_hal, hdd_ctx->config->enableDFSChnlScan);

		if (QDF_STATUS_SUCCESS == status) {
			ret_val = 0;

			/*
			 * Clear the SME scan cache also. Note that the
			 * clearing of scan results is independent of session;
			 * so no need to iterate over
			 * all sessions
			 */
			status = sme_scan_flush_result(h_hal);
			if (QDF_STATUS_SUCCESS != status)
				ret_val = -EPERM;
		}

	} else {
		hdd_notice(" the DFS flag has not changed");
		ret_val = 0;
	}
	return ret_val;
}

/**
 *  __wlan_hdd_cfg80211_disable_dfs_chan_scan() - DFS channel configuration
 *  @wiphy:          corestack handler
 *  @wdev:           wireless device
 *  @data:           data
 *  @data_len:       data length
 *  Return:         success(0) or reason code for failure
 */
static int __wlan_hdd_cfg80211_disable_dfs_chan_scan(struct wiphy *wiphy,
						     struct wireless_dev *wdev,
						     const void *data,
						     int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx  = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG_MAX + 1];
	int ret_val;
	uint32_t no_dfs_flag = 0;

	ENTER_DEV(dev);

	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		return ret_val;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG_MAX,
		      data, data_len,
		      wlan_hdd_set_no_dfs_flag_config_policy)) {
		hdd_err("invalid attr");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG]) {
		hdd_err("attr dfs flag failed");
		return -EINVAL;
	}

	no_dfs_flag = nla_get_u32(
		tb[QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG]);

	hdd_notice(" DFS flag = %d", no_dfs_flag);

	if (no_dfs_flag > 1) {
		hdd_err("invalid value of dfs flag");
		return -EINVAL;
	}

	ret_val = wlan_hdd_disable_dfs_chan_scan(hdd_ctx, adapter,
						 no_dfs_flag);
	return ret_val;
}

/**
 * wlan_hdd_cfg80211_disable_dfs_chan_scan () - DFS scan vendor command
 *
 * @wiphy: wiphy device pointer
 * @wdev: wireless device pointer
 * @data: Vendor command data buffer
 * @data_len: Buffer length
 *
 * Handles QCA_WLAN_VENDOR_ATTR_SET_NO_DFS_FLAG_MAX. Validate it and
 * call wlan_hdd_disable_dfs_chan_scan to send it to firmware.
 *
 * Return: EOK or other error codes.
 */

static int wlan_hdd_cfg80211_disable_dfs_chan_scan(struct wiphy *wiphy,
						   struct wireless_dev *wdev,
						   const void *data,
						   int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_disable_dfs_chan_scan(wiphy, wdev,
							data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct nla_policy
wlan_hdd_wisa_cmd_policy[QCA_WLAN_VENDOR_ATTR_WISA_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_WISA_MODE] = {.type = NLA_U32 },
};

/**
 * __wlan_hdd_cfg80211_handle_wisa_cmd() - Handle WISA vendor cmd
 * @wiphy: wiphy device pointer
 * @wdev: wireless device pointer
 * @data: Vendor command data buffer
 * @data_len: Buffer length
 *
 * Handles QCA_WLAN_VENDOR_SUBCMD_WISA. Validate cmd attributes and
 * setup WISA Mode features.
 *
 * Return: Success(0) or reason code for failure
 */
static int __wlan_hdd_cfg80211_handle_wisa_cmd(struct wiphy *wiphy,
		struct wireless_dev *wdev, const void *data, int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx  = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_WISA_MAX + 1];
	struct sir_wisa_params wisa;
	int ret_val;
	QDF_STATUS status;
	bool wisa_mode;
	void *soc = cds_get_context(QDF_MODULE_ID_SOC);
	void *pdev = cds_get_context(QDF_MODULE_ID_TXRX);

	ENTER_DEV(dev);
	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		goto err;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_WISA_MAX, data, data_len,
		      wlan_hdd_wisa_cmd_policy)) {
		hdd_err("Invalid WISA cmd attributes");
		ret_val = -EINVAL;
		goto err;
	}
	if (!tb[QCA_WLAN_VENDOR_ATTR_WISA_MODE]) {
		hdd_err("Invalid WISA mode");
		ret_val = -EINVAL;
		goto err;
	}

	wisa_mode = !!nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_WISA_MODE]);
	hdd_info("WISA Mode: %d", wisa_mode);
	wisa.mode = wisa_mode;
	wisa.vdev_id = adapter->sessionId;
	status = sme_set_wisa_params(hdd_ctx->hHal, &wisa);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("Unable to set WISA mode: %d to FW", wisa_mode);
		ret_val = -EINVAL;
	}
	if (QDF_IS_STATUS_SUCCESS(status) || wisa_mode == false)
		cdp_set_wisa_mode(soc,
			(struct cdp_vdev *)cdp_get_vdev_from_vdev_id(soc,
				(struct cdp_pdev *)pdev,
				adapter->sessionId),
			wisa_mode);
err:
	EXIT();
	return ret_val;
}

/**
 * wlan_hdd_cfg80211_handle_wisa_cmd() - Handle WISA vendor cmd
 * @wiphy:          corestack handler
 * @wdev:           wireless device
 * @data:           data
 * @data_len:       data length
 *
 * Handles QCA_WLAN_VENDOR_SUBCMD_WISA. Validate cmd attributes and
 * setup WISA mode features.
 *
 * Return: Success(0) or reason code for failure
 */
static int wlan_hdd_cfg80211_handle_wisa_cmd(struct wiphy *wiphy,
						   struct wireless_dev *wdev,
						   const void *data,
						   int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_handle_wisa_cmd(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * define short names for the global vendor params
 * used by __wlan_hdd_cfg80211_get_station_cmd()
 */
#define STATION_INVALID \
	QCA_WLAN_VENDOR_ATTR_GET_STATION_INVALID
#define STATION_INFO \
	QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO
#define STATION_ASSOC_FAIL_REASON \
	QCA_WLAN_VENDOR_ATTR_GET_STATION_ASSOC_FAIL_REASON
#define STATION_MAX \
	QCA_WLAN_VENDOR_ATTR_GET_STATION_MAX

static const struct nla_policy
hdd_get_station_policy[STATION_MAX + 1] = {
	[STATION_INFO] = {.type = NLA_FLAG},
	[STATION_ASSOC_FAIL_REASON] = {.type = NLA_FLAG},
};

/**
 * hdd_get_station_assoc_fail() - Handle get station assoc fail
 * @hdd_ctx: HDD context within host driver
 * @wdev: wireless device
 *
 * Handles QCA_NL80211_VENDOR_SUBCMD_GET_STATION_ASSOC_FAIL.
 * Validate cmd attributes and send the station info to upper layers.
 *
 * Return: Success(0) or reason code for failure
 */
static int hdd_get_station_assoc_fail(hdd_context_t *hdd_ctx,
						 hdd_adapter_t *adapter)
{
	struct sk_buff *skb = NULL;
	uint32_t nl_buf_len;
	hdd_station_ctx_t *hdd_sta_ctx;

	nl_buf_len = NLMSG_HDRLEN;
	nl_buf_len += sizeof(uint32_t);
	skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len);

	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter);

	if (nla_put_u32(skb, INFO_ASSOC_FAIL_REASON,
			hdd_sta_ctx->conn_info.assoc_status_code)) {
		hdd_err("put fail");
		goto fail;
	}
	return cfg80211_vendor_cmd_reply(skb);
fail:
	if (skb)
		kfree_skb(skb);
	return -EINVAL;
}

/**
 * hdd_map_auth_type() - transform auth type specific to
 * vendor command
 * @auth_type: csr auth type
 *
 * Return: Success(0) or reason code for failure
 */
static int hdd_convert_auth_type(uint32_t auth_type)
{
	uint32_t ret_val;

	switch (auth_type) {
	case eCSR_AUTH_TYPE_OPEN_SYSTEM:
		ret_val = QCA_WLAN_AUTH_TYPE_OPEN;
		break;
	case eCSR_AUTH_TYPE_SHARED_KEY:
		ret_val = QCA_WLAN_AUTH_TYPE_SHARED;
		break;
	case eCSR_AUTH_TYPE_WPA:
		ret_val = QCA_WLAN_AUTH_TYPE_WPA;
		break;
	case eCSR_AUTH_TYPE_WPA_PSK:
		ret_val = QCA_WLAN_AUTH_TYPE_WPA_PSK;
		break;
	case eCSR_AUTH_TYPE_AUTOSWITCH:
		ret_val = QCA_WLAN_AUTH_TYPE_AUTOSWITCH;
		break;
	case eCSR_AUTH_TYPE_WPA_NONE:
		ret_val = QCA_WLAN_AUTH_TYPE_WPA_NONE;
		break;
	case eCSR_AUTH_TYPE_RSN:
		ret_val = QCA_WLAN_AUTH_TYPE_RSN;
		break;
	case eCSR_AUTH_TYPE_RSN_PSK:
		ret_val = QCA_WLAN_AUTH_TYPE_RSN_PSK;
		break;
	case eCSR_AUTH_TYPE_FT_RSN:
		ret_val = QCA_WLAN_AUTH_TYPE_FT;
		break;
	case eCSR_AUTH_TYPE_FT_RSN_PSK:
		ret_val = QCA_WLAN_AUTH_TYPE_FT_PSK;
		break;
	case eCSR_AUTH_TYPE_WAPI_WAI_CERTIFICATE:
		ret_val = QCA_WLAN_AUTH_TYPE_WAI;
		break;
	case eCSR_AUTH_TYPE_WAPI_WAI_PSK:
		ret_val = QCA_WLAN_AUTH_TYPE_WAI_PSK;
		break;
	case eCSR_AUTH_TYPE_CCKM_WPA:
		ret_val = QCA_WLAN_AUTH_TYPE_CCKM_WPA;
		break;
	case eCSR_AUTH_TYPE_CCKM_RSN:
		ret_val = QCA_WLAN_AUTH_TYPE_CCKM_RSN;
		break;
	case eCSR_AUTH_TYPE_RSN_PSK_SHA256:
		ret_val = QCA_WLAN_AUTH_TYPE_SHA256_PSK;
		break;
	case eCSR_AUTH_TYPE_RSN_8021X_SHA256:
		ret_val = QCA_WLAN_AUTH_TYPE_SHA256;
		break;
	case eCSR_NUM_OF_SUPPORT_AUTH_TYPE:
	case eCSR_AUTH_TYPE_FAILED:
	case eCSR_AUTH_TYPE_NONE:
	default:
		ret_val = QCA_WLAN_AUTH_TYPE_INVALID;
		break;
	}
	return ret_val;
}

/**
 * hdd_map_dot_11_mode() - transform dot11mode type specific to
 * vendor command
 * @dot11mode: dot11mode
 *
 * Return: Success(0) or reason code for failure
 */
static int hdd_convert_dot11mode(uint32_t dot11mode)
{
	uint32_t ret_val;

	switch (dot11mode) {
	case eCSR_CFG_DOT11_MODE_11A:
		ret_val = QCA_WLAN_802_11_MODE_11A;
		break;
	case eCSR_CFG_DOT11_MODE_11B:
		ret_val = QCA_WLAN_802_11_MODE_11B;
		break;
	case eCSR_CFG_DOT11_MODE_11G:
		ret_val = QCA_WLAN_802_11_MODE_11G;
		break;
	case eCSR_CFG_DOT11_MODE_11N:
		ret_val = QCA_WLAN_802_11_MODE_11N;
		break;
	case eCSR_CFG_DOT11_MODE_11AC:
		ret_val = QCA_WLAN_802_11_MODE_11AC;
		break;
	case eCSR_CFG_DOT11_MODE_AUTO:
	case eCSR_CFG_DOT11_MODE_ABG:
	default:
		ret_val = QCA_WLAN_802_11_MODE_INVALID;
	}
	return ret_val;
}

/**
 * hdd_add_tx_bitrate() - add tx bitrate attribute
 * @skb: pointer to sk buff
 * @hdd_sta_ctx: pointer to hdd station context
 * @idx: attribute index
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t hdd_add_tx_bitrate(struct sk_buff *skb,
					  hdd_station_ctx_t *hdd_sta_ctx,
					  int idx)
{
	struct nlattr *nla_attr;
	uint32_t bitrate, bitrate_compat;

	nla_attr = nla_nest_start(skb, idx);
	if (!nla_attr)
		goto fail;
	/* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
	bitrate = cfg80211_calculate_bitrate(&hdd_sta_ctx->conn_info.txrate);

	/* report 16-bit bitrate only if we can */
	bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
	if (bitrate > 0 &&
	    nla_put_u32(skb, NL80211_RATE_INFO_BITRATE32, bitrate)) {
		hdd_err("put fail");
		goto fail;
	}
	if (bitrate_compat > 0 &&
	    nla_put_u16(skb, NL80211_RATE_INFO_BITRATE, bitrate_compat)) {
		hdd_err("put fail");
		goto fail;
	}
	if (nla_put_u8(skb, NL80211_RATE_INFO_VHT_NSS,
		       hdd_sta_ctx->conn_info.txrate.nss)) {
		hdd_err("put fail");
		goto fail;
	}
	nla_nest_end(skb, nla_attr);
	return 0;
fail:
	return -EINVAL;
}

/**
 * hdd_add_sta_info() - add station info attribute
 * @skb: pointer to sk buff
 * @hdd_sta_ctx: pointer to hdd station context
 * @idx: attribute index
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t hdd_add_sta_info(struct sk_buff *skb,
				       hdd_station_ctx_t *hdd_sta_ctx, int idx)
{
	struct nlattr *nla_attr;

	nla_attr = nla_nest_start(skb, idx);
	if (!nla_attr)
		goto fail;
	if (nla_put_u8(skb, NL80211_STA_INFO_SIGNAL,
		       (hdd_sta_ctx->conn_info.signal + 100))) {
		hdd_err("put fail");
		goto fail;
	}
	if (hdd_add_tx_bitrate(skb, hdd_sta_ctx, NL80211_STA_INFO_TX_BITRATE))
		goto fail;
	nla_nest_end(skb, nla_attr);
	return 0;
fail:
	return -EINVAL;
}

/**
 * hdd_add_survey_info() - add survey info attribute
 * @skb: pointer to sk buff
 * @hdd_sta_ctx: pointer to hdd station context
 * @idx: attribute index
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t hdd_add_survey_info(struct sk_buff *skb,
					   hdd_station_ctx_t *hdd_sta_ctx,
					   int idx)
{
	struct nlattr *nla_attr;

	nla_attr = nla_nest_start(skb, idx);
	if (!nla_attr)
		goto fail;
	if (nla_put_u32(skb, NL80211_SURVEY_INFO_FREQUENCY,
			hdd_sta_ctx->conn_info.freq) ||
	    nla_put_u8(skb, NL80211_SURVEY_INFO_NOISE,
		       (hdd_sta_ctx->conn_info.noise + 100))) {
		hdd_err("put fail");
		goto fail;
	}
	nla_nest_end(skb, nla_attr);
	return 0;
fail:
	return -EINVAL;
}

/**
 * hdd_add_link_standard_info() - add link info attribute
 * @skb: pointer to sk buff
 * @hdd_sta_ctx: pointer to hdd station context
 * @idx: attribute index
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t
hdd_add_link_standard_info(struct sk_buff *skb,
			   hdd_station_ctx_t *hdd_sta_ctx, int idx)
{
	struct nlattr *nla_attr;

	nla_attr = nla_nest_start(skb, idx);
	if (!nla_attr)
		goto fail;
	if (nla_put(skb,
		    NL80211_ATTR_SSID,
		    hdd_sta_ctx->conn_info.SSID.SSID.length,
		    hdd_sta_ctx->conn_info.SSID.SSID.ssId)) {
		hdd_err("put fail");
		goto fail;
	}
	if (hdd_add_survey_info(skb, hdd_sta_ctx, NL80211_ATTR_SURVEY_INFO))
		goto fail;
	if (hdd_add_sta_info(skb, hdd_sta_ctx, NL80211_ATTR_STA_INFO))
		goto fail;
	nla_nest_end(skb, nla_attr);
	return 0;
fail:
	return -EINVAL;
}

/**
 * hdd_add_ap_standard_info() - add ap info attribute
 * @skb: pointer to sk buff
 * @hdd_sta_ctx: pointer to hdd station context
 * @idx: attribute index
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t
hdd_add_ap_standard_info(struct sk_buff *skb,
			 hdd_station_ctx_t *hdd_sta_ctx, int idx)
{
	struct nlattr *nla_attr;

	nla_attr = nla_nest_start(skb, idx);
	if (!nla_attr)
		goto fail;
	if (hdd_sta_ctx->conn_info.conn_flag.vht_present)
		if (nla_put(skb, NL80211_ATTR_VHT_CAPABILITY,
			    sizeof(hdd_sta_ctx->conn_info.vht_caps),
			    &hdd_sta_ctx->conn_info.vht_caps)) {
			hdd_err("put fail");
			goto fail;
		}
	if (hdd_sta_ctx->conn_info.conn_flag.ht_present)
		if (nla_put(skb, NL80211_ATTR_HT_CAPABILITY,
			    sizeof(hdd_sta_ctx->conn_info.ht_caps),
			    &hdd_sta_ctx->conn_info.ht_caps)) {
			hdd_err("put fail");
			goto fail;
		}
	nla_nest_end(skb, nla_attr);
	return 0;
fail:
	return -EINVAL;
}

/**
 * hdd_get_station_info() - send BSS information to supplicant
 * @hdd_ctx: pointer to hdd context
 * @adapter: pointer to adapter
 *
 * Return: 0 if success else error status
 */
static int hdd_get_station_info(hdd_context_t *hdd_ctx,
					 hdd_adapter_t *adapter)
{
	struct sk_buff *skb = NULL;
	uint8_t *tmp_hs20 = NULL;
	uint32_t nl_buf_len;
	hdd_station_ctx_t *hdd_sta_ctx;

	hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter);

	nl_buf_len = NLMSG_HDRLEN;
	nl_buf_len += sizeof(hdd_sta_ctx->conn_info.SSID.SSID.length) +
		      sizeof(hdd_sta_ctx->conn_info.freq) +
		      sizeof(hdd_sta_ctx->conn_info.noise) +
		      sizeof(hdd_sta_ctx->conn_info.signal) +
		      (sizeof(uint32_t) * 2) +
		      sizeof(hdd_sta_ctx->conn_info.txrate.nss) +
		      sizeof(hdd_sta_ctx->conn_info.roam_count) +
		      sizeof(hdd_sta_ctx->conn_info.authType) +
		      sizeof(hdd_sta_ctx->conn_info.dot11Mode);
	if (hdd_sta_ctx->conn_info.conn_flag.vht_present)
		nl_buf_len += sizeof(hdd_sta_ctx->conn_info.vht_caps);
	if (hdd_sta_ctx->conn_info.conn_flag.ht_present)
		nl_buf_len += sizeof(hdd_sta_ctx->conn_info.ht_caps);
	if (hdd_sta_ctx->conn_info.conn_flag.hs20_present) {
		tmp_hs20 = (uint8_t *)&(hdd_sta_ctx->conn_info.hs20vendor_ie);
		nl_buf_len += (sizeof(hdd_sta_ctx->conn_info.hs20vendor_ie) -
			       1);
	}
	if (hdd_sta_ctx->conn_info.conn_flag.ht_op_present)
		nl_buf_len += sizeof(hdd_sta_ctx->conn_info.ht_operation);
	if (hdd_sta_ctx->conn_info.conn_flag.vht_op_present)
		nl_buf_len += sizeof(hdd_sta_ctx->conn_info.vht_operation);


	skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len);
	if (!skb) {
		hdd_err(FL("cfg80211_vendor_cmd_alloc_reply_skb failed"));
		return -ENOMEM;
	}

	if (hdd_add_link_standard_info(skb, hdd_sta_ctx,
				       LINK_INFO_STANDARD_NL80211_ATTR)) {
		hdd_err("put fail");
		goto fail;
	}
	if (hdd_add_ap_standard_info(skb, hdd_sta_ctx,
				     AP_INFO_STANDARD_NL80211_ATTR)) {
		hdd_err("put fail");
		goto fail;
	}
	if (nla_put_u32(skb, INFO_ROAM_COUNT,
			hdd_sta_ctx->conn_info.roam_count) ||
	    nla_put_u32(skb, INFO_AKM,
			hdd_convert_auth_type(
			hdd_sta_ctx->conn_info.authType)) ||
	    nla_put_u32(skb, WLAN802_11_MODE,
			hdd_convert_dot11mode(
			hdd_sta_ctx->conn_info.dot11Mode))) {
		hdd_err("put fail");
		goto fail;
	}
	if (hdd_sta_ctx->conn_info.conn_flag.ht_op_present)
		if (nla_put(skb, HT_OPERATION,
			    (sizeof(hdd_sta_ctx->conn_info.ht_operation)),
			    &hdd_sta_ctx->conn_info.ht_operation)) {
			hdd_err("put fail");
			goto fail;
		}
	if (hdd_sta_ctx->conn_info.conn_flag.vht_op_present)
		if (nla_put(skb, VHT_OPERATION,
			    (sizeof(hdd_sta_ctx->conn_info.vht_operation)),
			    &hdd_sta_ctx->conn_info.vht_operation)) {
			hdd_err("put fail");
			goto fail;
		}
	if (hdd_sta_ctx->conn_info.conn_flag.hs20_present)
		if (nla_put(skb, AP_INFO_HS20_INDICATION,
			    (sizeof(hdd_sta_ctx->conn_info.hs20vendor_ie) - 1),
			    tmp_hs20 + 1)) {
			hdd_err("put fail");
			goto fail;
		}

	return cfg80211_vendor_cmd_reply(skb);
fail:
	if (skb)
		kfree_skb(skb);
	return -EINVAL;
}

/**
 * __hdd_cfg80211_get_station_cmd() - Handle get station vendor cmd
 * @wiphy: corestack handler
 * @wdev: wireless device
 * @data: data
 * @data_len: data length
 *
 * Handles QCA_NL80211_VENDOR_SUBCMD_GET_STATION.
 * Validate cmd attributes and send the station info to upper layers.
 *
 * Return: Success(0) or reason code for failure
 */
static int
__hdd_cfg80211_get_station_cmd(struct wiphy *wiphy,
			       struct wireless_dev *wdev,
			       const void *data,
			       int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_GET_STATION_MAX + 1];
	int32_t status;

	ENTER_DEV(dev);
	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		status = -EPERM;
		goto out;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (0 != status)
		goto out;


	status = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_GET_STATION_MAX,
			data, data_len, NULL);
	if (status) {
		hdd_err("Invalid ATTR");
		goto out;
	}

	/* Parse and fetch Command Type*/
	if (tb[STATION_INFO]) {
		status = hdd_get_station_info(hdd_ctx, adapter);
	} else if (tb[STATION_ASSOC_FAIL_REASON]) {
		status = hdd_get_station_assoc_fail(hdd_ctx, adapter);
	} else {
		hdd_err("get station info cmd type failed");
		status = -EINVAL;
		goto out;
	}
	EXIT();
out:
	return status;
}

/**
 * wlan_hdd_cfg80211_get_station_cmd() - Handle get station vendor cmd
 * @wiphy: corestack handler
 * @wdev: wireless device
 * @data: data
 * @data_len: data length
 *
 * Handles QCA_NL80211_VENDOR_SUBCMD_GET_STATION.
 * Validate cmd attributes and send the station info to upper layers.
 *
 * Return: Success(0) or reason code for failure
 */
static int32_t
hdd_cfg80211_get_station_cmd(struct wiphy *wiphy,
			     struct wireless_dev *wdev,
			     const void *data,
			     int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __hdd_cfg80211_get_station_cmd(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * undef short names defined for get station command
 * used by __wlan_hdd_cfg80211_get_station_cmd()
 */
#undef STATION_INVALID
#undef STATION_INFO
#undef STATION_ASSOC_FAIL_REASON
#undef STATION_MAX

#ifdef WLAN_FEATURE_ROAM_OFFLOAD
/**
 * __wlan_hdd_cfg80211_keymgmt_set_key() - Store the Keys in the driver session
 * @wiphy: pointer to wireless wiphy structure.
 * @wdev: pointer to wireless_dev structure.
 * @data: Pointer to the Key data
 * @data_len:Length of the data passed
 *
 * This is called when wlan driver needs to save the keys received via
 * vendor specific command.
 *
 * Return: Return the Success or Failure code.
 */
static int __wlan_hdd_cfg80211_keymgmt_set_key(struct wiphy *wiphy,
					       struct wireless_dev *wdev,
					       const void *data, int data_len)
{
	uint8_t local_pmk[SIR_ROAM_SCAN_PSK_SIZE];
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *hdd_adapter_ptr = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx_ptr;
	int status;

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if ((data == NULL) || (data_len == 0) ||
			(data_len > SIR_ROAM_SCAN_PSK_SIZE)) {
		hdd_err("Invalid data");
		return -EINVAL;
	}

	hdd_ctx_ptr = WLAN_HDD_GET_CTX(hdd_adapter_ptr);
	if (!hdd_ctx_ptr) {
		hdd_err("HDD context is null");
		return -EINVAL;
	}

	status = wlan_hdd_validate_context(hdd_ctx_ptr);
	if (status)
		return status;
	sme_update_roam_key_mgmt_offload_enabled(hdd_ctx_ptr->hHal,
			hdd_adapter_ptr->sessionId,
			true,
			hdd_is_okc_mode_enabled(hdd_ctx_ptr));
	qdf_mem_zero(&local_pmk, SIR_ROAM_SCAN_PSK_SIZE);
	qdf_mem_copy(local_pmk, data, data_len);
	sme_roam_set_psk_pmk(WLAN_HDD_GET_HAL_CTX(hdd_adapter_ptr),
			hdd_adapter_ptr->sessionId, local_pmk, data_len);
	return 0;
}

/**
 * wlan_hdd_cfg80211_keymgmt_set_key() - Store the Keys in the driver session
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the Key data
 * @data_len:Length of the data passed
 *
 * This is called when wlan driver needs to save the keys received via
 * vendor specific command.
 *
 * Return:   Return the Success or Failure code.
 */
static int wlan_hdd_cfg80211_keymgmt_set_key(struct wiphy *wiphy,
					     struct wireless_dev *wdev,
					     const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_keymgmt_set_key(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}
#endif

static const struct nla_policy qca_wlan_vendor_get_wifi_info_policy[
			QCA_WLAN_VENDOR_ATTR_WIFI_INFO_GET_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_FIRMWARE_VERSION] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_RADIO_INDEX] = {.type = NLA_U32 },
};

/**
 * __wlan_hdd_cfg80211_get_wifi_info() - Get the wifi driver related info
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This is called when wlan driver needs to send wifi driver related info
 * (driver/fw version) to the user space application upon request.
 *
 * Return:   Return the Success or Failure code.
 */
static int
__wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
				  struct wireless_dev *wdev,
				  const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_GET_MAX + 1];
	tSirVersionString driver_version;
	tSirVersionString firmware_version;
	uint32_t major_spid = 0, minor_spid = 0, siid = 0, crmid = 0;
	int status;
	struct sk_buff *reply_skb;
	uint32_t skb_len = 0, count = 0;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		return status;

	if (nla_parse(tb_vendor, QCA_WLAN_VENDOR_ATTR_WIFI_INFO_GET_MAX, data,
		      data_len, qca_wlan_vendor_get_wifi_info_policy)) {
		hdd_err("WIFI_INFO_GET NL CMD parsing failed");
		return -EINVAL;
	}

	if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION]) {
		hdd_err("Rcvd req for Driver version");
		strlcpy(driver_version, QWLAN_VERSIONSTR,
			sizeof(driver_version));
		skb_len += strlen(driver_version) + 1;
		count++;
	}

	if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_FIRMWARE_VERSION]) {
		hdd_info("Rcvd req for FW version");
		hdd_get_fw_version(hdd_ctx, &major_spid, &minor_spid, &siid,
				   &crmid);
		snprintf(firmware_version, sizeof(firmware_version),
			 "%d:%d:%d:%d", major_spid, minor_spid, siid, crmid);
		skb_len += strlen(firmware_version) + 1;
		count++;
	}

	if (count == 0) {
		hdd_err("unknown attribute in get_wifi_info request");
		return -EINVAL;
	}

	skb_len += (NLA_HDRLEN * count) + NLMSG_HDRLEN;
	reply_skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, skb_len);

	if (!reply_skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION]) {
		if (nla_put_string(reply_skb,
			    QCA_WLAN_VENDOR_ATTR_WIFI_INFO_DRIVER_VERSION,
			    driver_version))
			goto error_nla_fail;
	}

	if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_FIRMWARE_VERSION]) {
		if (nla_put_string(reply_skb,
			    QCA_WLAN_VENDOR_ATTR_WIFI_INFO_FIRMWARE_VERSION,
			    firmware_version))
			goto error_nla_fail;
	}

	if (tb_vendor[QCA_WLAN_VENDOR_ATTR_WIFI_INFO_RADIO_INDEX]) {
		if (nla_put_u32(reply_skb,
				QCA_WLAN_VENDOR_ATTR_WIFI_INFO_RADIO_INDEX,
				hdd_ctx->radio_index))
			goto error_nla_fail;
	}

	return cfg80211_vendor_cmd_reply(reply_skb);

error_nla_fail:
	hdd_err("nla put fail");
	kfree_skb(reply_skb);
	return -EINVAL;
}

/**
 * wlan_hdd_cfg80211_get_wifi_info() - Get the wifi driver related info
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This is called when wlan driver needs to send wifi driver related info
 * (driver/fw version) to the user space application upon request.
 *
 * Return:   Return the Success or Failure code.
 */
static int
wlan_hdd_cfg80211_get_wifi_info(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_wifi_info(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_get_logger_supp_feature() - Get the wifi logger features
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This is called by userspace to know the supported logger features
 *
 * Return:   Return the Success or Failure code.
 */
static int
__wlan_hdd_cfg80211_get_logger_supp_feature(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int status;
	uint32_t features;
	struct sk_buff *reply_skb = NULL;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		return status;

	features = 0;

	if (hdd_is_memdump_supported())
		features |= WIFI_LOGGER_MEMORY_DUMP_SUPPORTED;
	features |= WIFI_LOGGER_PER_PACKET_TX_RX_STATUS_SUPPORTED;
	features |= WIFI_LOGGER_CONNECT_EVENT_SUPPORTED;
	features |= WIFI_LOGGER_WAKE_LOCK_SUPPORTED;

	reply_skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy,
			sizeof(uint32_t) + NLA_HDRLEN + NLMSG_HDRLEN);
	if (!reply_skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	hdd_notice("Supported logger features: 0x%0x", features);
	if (nla_put_u32(reply_skb, QCA_WLAN_VENDOR_ATTR_LOGGER_SUPPORTED,
				   features)) {
		hdd_err("nla put fail");
		kfree_skb(reply_skb);
		return -EINVAL;
	}

	return cfg80211_vendor_cmd_reply(reply_skb);
}

/**
 * wlan_hdd_cfg80211_get_logger_supp_feature() - Get the wifi logger features
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * This is called by userspace to know the supported logger features
 *
 * Return:   Return the Success or Failure code.
 */
static int
wlan_hdd_cfg80211_get_logger_supp_feature(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_logger_supp_feature(wiphy, wdev,
							  data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#ifdef WLAN_FEATURE_ROAM_OFFLOAD
/**
 * wlan_hdd_send_roam_auth_event() - Send the roamed and authorized event
 * @adapter: Pointer to adapter struct
 * @bssid: pointer to bssid of roamed AP.
 * @req_rsn_ie: Pointer to request RSN IE
 * @req_rsn_len: Length of the request RSN IE
 * @rsp_rsn_ie: Pointer to response RSN IE
 * @rsp_rsn_len: Length of the response RSN IE
 * @roam_info_ptr: Pointer to the roaming related information
 *
 * This is called when wlan driver needs to send the roaming and
 * authorization information after roaming.
 *
 * The information that would be sent is the request RSN IE, response
 * RSN IE and BSSID of the newly roamed AP.
 *
 * If the Authorized status is authenticated, then additional parameters
 * like PTK's KCK and KEK and Replay Counter would also be passed to the
 * supplicant.
 *
 * The supplicant upon receiving this event would ignore the legacy
 * cfg80211_roamed call and use the entire information from this event.
 * The cfg80211_roamed should still co-exist since the kernel will
 * make use of the parameters even if the supplicant ignores it.
 *
 * Return: Return the Success or Failure code.
 */
int wlan_hdd_send_roam_auth_event(hdd_adapter_t *adapter, uint8_t *bssid,
		uint8_t *req_rsn_ie, uint32_t req_rsn_len, uint8_t *rsp_rsn_ie,
		uint32_t rsp_rsn_len, tCsrRoamInfo *roam_info_ptr)
{
	hdd_context_t *hdd_ctx_ptr = WLAN_HDD_GET_CTX(adapter);
	struct sk_buff *skb = NULL;
	eCsrAuthType auth_type;
	ENTER();

	if (wlan_hdd_validate_context(hdd_ctx_ptr))
		return -EINVAL;

	if (!roaming_offload_enabled(hdd_ctx_ptr) ||
			!roam_info_ptr->roamSynchInProgress)
		return 0;

	skb = cfg80211_vendor_event_alloc(hdd_ctx_ptr->wiphy,
			&(adapter->wdev),
			ETH_ALEN + req_rsn_len + rsp_rsn_len +
			sizeof(uint8_t) + SIR_REPLAY_CTR_LEN +
			SIR_KCK_KEY_LEN + SIR_KCK_KEY_LEN +
			sizeof(uint8_t) + (8 * NLMSG_HDRLEN),
			QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH_INDEX,
			GFP_KERNEL);

	if (!skb) {
		hdd_err("cfg80211_vendor_event_alloc failed");
		return -EINVAL;
	}

	if (nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID,
				ETH_ALEN, bssid) ||
			nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REQ_IE,
				req_rsn_len, req_rsn_ie) ||
			nla_put(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_RESP_IE,
				rsp_rsn_len, rsp_rsn_ie)) {
		hdd_err("nla put fail");
		goto nla_put_failure;
	}
	hdd_debug("Auth Status = %d", roam_info_ptr->synchAuthStatus);
	if (roam_info_ptr->synchAuthStatus ==
			CSR_ROAM_AUTH_STATUS_AUTHENTICATED) {
		hdd_debug("Include Auth Params TLV's");
		if (nla_put_u8(skb,
			QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED, true)) {
			hdd_err("nla put fail");
			goto nla_put_failure;
		}
		auth_type = roam_info_ptr->u.pConnectedProfile->AuthType;
		/* if FT or CCKM connection: dont send replay counter */
		if (auth_type != eCSR_AUTH_TYPE_FT_RSN &&
		    auth_type != eCSR_AUTH_TYPE_FT_RSN_PSK &&
		    auth_type != eCSR_AUTH_TYPE_CCKM_WPA &&
		    auth_type != eCSR_AUTH_TYPE_CCKM_RSN &&
		    nla_put(skb,
			    QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_KEY_REPLAY_CTR,
			    SIR_REPLAY_CTR_LEN,
			    roam_info_ptr->replay_ctr)) {
			hdd_err("non FT/non CCKM connection.");
			hdd_err("failed to send replay counter.");
			goto nla_put_failure;
		}
		if (nla_put(skb,
			QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PTK_KCK,
			SIR_KCK_KEY_LEN, roam_info_ptr->kck) ||
		    nla_put(skb,
			QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PTK_KEK,
			SIR_KEK_KEY_LEN, roam_info_ptr->kek)) {
			hdd_err("nla put fail");
			goto nla_put_failure;
		}
	} else {
		hdd_debug("No Auth Params TLV's");
		if (nla_put_u8(skb, QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED,
					false)) {
			hdd_err("nla put fail");
			goto nla_put_failure;
		}
	}

	hdd_debug("Subnet Change Status = %d",
		roam_info_ptr->subnet_change_status);

	/*
	 * Add subnet change status if subnet has changed
	 * 0 = unchanged
	 * 1 = changed
	 * 2 = unknown
	 */
	if (roam_info_ptr->subnet_change_status) {
		if (nla_put_u8(skb,
				QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_SUBNET_STATUS,
				roam_info_ptr->subnet_change_status)) {
			hdd_err("nla put fail");
			goto nla_put_failure;
		}
	}

	cfg80211_vendor_event(skb, GFP_KERNEL);
	return 0;

nla_put_failure:
	kfree_skb(skb);
	return -EINVAL;
}
#endif

static const struct nla_policy
wlan_hdd_wifi_config_policy[QCA_WLAN_VENDOR_ATTR_CONFIG_MAX + 1] = {

	[QCA_WLAN_VENDOR_ATTR_CONFIG_MODULATED_DTIM] = {.type = NLA_U32 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_STATS_AVG_FACTOR] = {.type = NLA_U16 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_GUARD_TIME] = {.type = NLA_U32 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_CHANNEL_AVOIDANCE_IND] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_MPDU_AGGREGATION] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_RX_MPDU_AGGREGATION] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_NON_AGG_RETRY] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_AGG_RETRY] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_MGMT_RETRY] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_CTRL_RETRY] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_PROPAGATION_DELAY] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_FAIL_COUNT] = {.type = NLA_U32 },
};

/**
 * wlan_hdd_save_default_scan_ies() - API to store the default scan IEs
 *
 * @adapter: Pointer to HDD adapter
 * @ie_data: Pointer to Scan IEs buffer
 * @ie_len: Length of Scan IEs
 *
 * Return: 0 on success; error number otherwise
 */
static int wlan_hdd_save_default_scan_ies(hdd_adapter_t *adapter,
		uint8_t *ie_data, uint8_t ie_len)
{
	hdd_scaninfo_t *scan_info = NULL;
	scan_info = &adapter->scan_info;

	if (scan_info->default_scan_ies) {
		qdf_mem_free(scan_info->default_scan_ies);
		scan_info->default_scan_ies = NULL;
	}

	scan_info->default_scan_ies = qdf_mem_malloc(ie_len);
	if (!scan_info->default_scan_ies)
		return -ENOMEM;

	memcpy(scan_info->default_scan_ies, ie_data, ie_len);
	scan_info->default_scan_ies_len = ie_len;
	return 0;
}

/**
 * __wlan_hdd_cfg80211_wifi_configuration_set() - Wifi configuration
 * vendor command
 *
 * @wiphy: wiphy device pointer
 * @wdev: wireless device pointer
 * @data: Vendor command data buffer
 * @data_len: Buffer length
 *
 * Handles QCA_WLAN_VENDOR_ATTR_CONFIG_MAX.
 *
 * Return: Error code.
 */
static int
__wlan_hdd_cfg80211_wifi_configuration_set(struct wiphy *wiphy,
					   struct wireless_dev *wdev,
					   const void *data,
					   int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx  = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_CONFIG_MAX + 1];
	int ret_val = 0;
	u32 modulated_dtim;
	u16 stats_avg_factor;
	u32 guard_time;
	uint8_t set_value;
	u32 ftm_capab;
	u8 qpower;
	QDF_STATUS status;
	int attr_len;
	int access_policy = 0;
	char vendor_ie[SIR_MAC_MAX_IE_LENGTH + 2];
	bool vendor_ie_present = false, access_policy_present = false;
	uint16_t scan_ie_len = 0;
	uint8_t *scan_ie;
	struct sir_set_tx_rx_aggregation_size request;
	QDF_STATUS qdf_status;
	uint8_t retry, delay;
	int param_id;
	uint32_t tx_fail_count;

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		return ret_val;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_CONFIG_MAX,
		      data, data_len,
		      wlan_hdd_wifi_config_policy)) {
		hdd_err("invalid attr");
		return -EINVAL;
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_FINE_TIME_MEASUREMENT]) {
		ftm_capab = nla_get_u32(tb[
			QCA_WLAN_VENDOR_ATTR_CONFIG_FINE_TIME_MEASUREMENT]);
		hdd_ctx->config->fine_time_meas_cap =
			hdd_ctx->fine_time_meas_cap_target & ftm_capab;
		sme_update_fine_time_measurement_capab(hdd_ctx->hHal,
			adapter->sessionId,
			hdd_ctx->config->fine_time_meas_cap);
		hdd_info("FTM capability: user value: 0x%x, target value: 0x%x, final value: 0x%x",
			 ftm_capab, hdd_ctx->fine_time_meas_cap_target,
			 hdd_ctx->config->fine_time_meas_cap);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_MODULATED_DTIM]) {
		modulated_dtim = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_MODULATED_DTIM]);

		status = sme_configure_modulated_dtim(hdd_ctx->hHal,
						      adapter->sessionId,
						      modulated_dtim);

		if (QDF_STATUS_SUCCESS != status)
			ret_val = -EPERM;
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_QPOWER]) {
		qpower = nla_get_u8(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_QPOWER]);
		if (hdd_set_qpower_config(hdd_ctx, adapter, qpower) != 0)
			ret_val = -EINVAL;
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_STATS_AVG_FACTOR]) {
		stats_avg_factor = nla_get_u16(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_STATS_AVG_FACTOR]);
		status = sme_configure_stats_avg_factor(hdd_ctx->hHal,
							adapter->sessionId,
							stats_avg_factor);

		if (QDF_STATUS_SUCCESS != status)
			ret_val = -EPERM;
	}


	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_GUARD_TIME]) {
		guard_time = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_GUARD_TIME]);
		status = sme_configure_guard_time(hdd_ctx->hHal,
						  adapter->sessionId,
						  guard_time);

		if (QDF_STATUS_SUCCESS != status)
			ret_val = -EPERM;
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_ACCESS_POLICY_IE_LIST]) {
		qdf_mem_zero(&vendor_ie[0], SIR_MAC_MAX_IE_LENGTH + 2);
		attr_len = nla_len(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_ACCESS_POLICY_IE_LIST]);
		if (attr_len < 0 || attr_len > SIR_MAC_MAX_IE_LENGTH + 2) {
			hdd_info("Invalid value. attr_len %d",
				attr_len);
			return -EINVAL;
		}

		nla_memcpy(&vendor_ie,
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_ACCESS_POLICY_IE_LIST],
			attr_len);
		vendor_ie_present = true;
		hdd_info("Access policy vendor ie present.attr_len %d",
			attr_len);
		qdf_trace_hex_dump(QDF_MODULE_ID_HDD, QDF_TRACE_LEVEL_INFO,
			&vendor_ie[0], attr_len);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_ACCESS_POLICY]) {
		access_policy = (int) nla_get_u32(
		tb[QCA_WLAN_VENDOR_ATTR_CONFIG_ACCESS_POLICY]);
		if ((access_policy < QCA_ACCESS_POLICY_ACCEPT_UNLESS_LISTED) ||
			(access_policy >
				QCA_ACCESS_POLICY_DENY_UNLESS_LISTED)) {
			hdd_info("Invalid value. access_policy %d",
				access_policy);
			return -EINVAL;
		}
		access_policy_present = true;
		hdd_info("Access policy present. access_policy %d",
			access_policy);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_NON_AGG_RETRY]) {
		retry = nla_get_u8(tb[
				QCA_WLAN_VENDOR_ATTR_CONFIG_NON_AGG_RETRY]);
		retry = retry > CFG_NON_AGG_RETRY_MAX ?
				CFG_NON_AGG_RETRY_MAX : retry;
		param_id = WMI_PDEV_PARAM_NON_AGG_SW_RETRY_TH;
		ret_val = wma_cli_set_command(adapter->sessionId, param_id,
					      retry, PDEV_CMD);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_AGG_RETRY]) {
		retry = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_CONFIG_AGG_RETRY]);
		retry = retry > CFG_AGG_RETRY_MAX ?
			CFG_AGG_RETRY_MAX : retry;

		/* Value less than CFG_AGG_RETRY_MIN has side effect to t-put */
		retry = ((retry > 0) && (retry < CFG_AGG_RETRY_MIN)) ?
				CFG_AGG_RETRY_MIN : retry;
		param_id = WMI_PDEV_PARAM_AGG_SW_RETRY_TH;
		ret_val = wma_cli_set_command(adapter->sessionId, param_id,
					      retry, PDEV_CMD);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_MGMT_RETRY]) {
		retry = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_CONFIG_MGMT_RETRY]);
		retry = retry > CFG_MGMT_RETRY_MAX ?
				CFG_MGMT_RETRY_MAX : retry;
		param_id = WMI_PDEV_PARAM_MGMT_RETRY_LIMIT;
		ret_val = wma_cli_set_command(adapter->sessionId, param_id,
					      retry, PDEV_CMD);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_CTRL_RETRY]) {
		retry = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_CONFIG_CTRL_RETRY]);
		retry = retry > CFG_CTRL_RETRY_MAX ?
				CFG_CTRL_RETRY_MAX : retry;
		param_id = WMI_PDEV_PARAM_CTRL_RETRY_LIMIT;
		ret_val = wma_cli_set_command(adapter->sessionId, param_id,
					      retry, PDEV_CMD);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_PROPAGATION_DELAY]) {
		delay = nla_get_u8(tb[
				QCA_WLAN_VENDOR_ATTR_CONFIG_PROPAGATION_DELAY]);
		delay = delay > CFG_PROPAGATION_DELAY_MAX ?
				CFG_PROPAGATION_DELAY_MAX : delay;
		param_id = WMI_PDEV_PARAM_PROPAGATION_DELAY;
		ret_val = wma_cli_set_command(adapter->sessionId, param_id,
					      delay, PDEV_CMD);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_FAIL_COUNT]) {
		tx_fail_count = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_FAIL_COUNT]);
		if (tx_fail_count) {
			status = sme_update_tx_fail_cnt_threshold(hdd_ctx->hHal,
					adapter->sessionId, tx_fail_count);
			if (QDF_STATUS_SUCCESS != status) {
				hdd_info("sme_update_tx_fail_cnt_threshold (err=%d)",
					status);
				return -EINVAL;
			}
		}
	}

	if (vendor_ie_present && access_policy_present) {
		if (access_policy == QCA_ACCESS_POLICY_DENY_UNLESS_LISTED) {
			access_policy =
				WLAN_HDD_VENDOR_IE_ACCESS_ALLOW_IF_LISTED;
		} else {
			access_policy = WLAN_HDD_VENDOR_IE_ACCESS_NONE;
		}

		hdd_info("calling sme_update_access_policy_vendor_ie");
		status = sme_update_access_policy_vendor_ie(hdd_ctx->hHal,
				adapter->sessionId, &vendor_ie[0],
				access_policy);
		if (QDF_STATUS_SUCCESS != status) {
			hdd_info("Failed to set vendor ie and access policy.");
			return -EINVAL;
		}
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_CHANNEL_AVOIDANCE_IND]) {
		set_value = nla_get_u8(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_CHANNEL_AVOIDANCE_IND]);
		hdd_info("set_value: %d", set_value);
		ret_val = hdd_enable_disable_ca_event(hdd_ctx, set_value);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_SCAN_DEFAULT_IES]) {
		scan_ie_len = nla_len(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_SCAN_DEFAULT_IES]);
		hdd_info("Received default scan IE of len %d session %d device mode %d",
						scan_ie_len, adapter->sessionId,
						adapter->device_mode);
		if (scan_ie_len && (scan_ie_len <= MAX_DEFAULT_SCAN_IE_LEN)) {
			scan_ie = (uint8_t *) nla_data(tb
				[QCA_WLAN_VENDOR_ATTR_CONFIG_SCAN_DEFAULT_IES]);

			if (wlan_hdd_save_default_scan_ies(adapter, scan_ie,
								scan_ie_len))
				hdd_err("Failed to save default scan IEs");

			if (adapter->device_mode == QDF_STA_MODE) {
				status = sme_set_default_scan_ie(hdd_ctx->hHal,
						adapter->sessionId, scan_ie,
						scan_ie_len);
				if (QDF_STATUS_SUCCESS != status)
					ret_val = -EPERM;
			}
		} else
			ret_val = -EPERM;
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_MPDU_AGGREGATION] ||
	    tb[QCA_WLAN_VENDOR_ATTR_CONFIG_RX_MPDU_AGGREGATION]) {
		/* if one is specified, both must be specified */
		if (!tb[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_MPDU_AGGREGATION] ||
		    !tb[QCA_WLAN_VENDOR_ATTR_CONFIG_RX_MPDU_AGGREGATION]) {
			hdd_err("Both TX and RX MPDU Aggregation required");
			return -EINVAL;
		}

		request.tx_aggregation_size = nla_get_u8(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_TX_MPDU_AGGREGATION]);
		request.rx_aggregation_size = nla_get_u8(
			tb[QCA_WLAN_VENDOR_ATTR_CONFIG_RX_MPDU_AGGREGATION]);
		request.vdev_id = adapter->sessionId;

		if (request.tx_aggregation_size >=
					CFG_TX_AGGREGATION_SIZE_MIN &&
			request.tx_aggregation_size <=
					CFG_TX_AGGREGATION_SIZE_MAX &&
			request.rx_aggregation_size >=
					CFG_RX_AGGREGATION_SIZE_MIN &&
			request.rx_aggregation_size <=
					CFG_RX_AGGREGATION_SIZE_MAX) {
			qdf_status = wma_set_tx_rx_aggregation_size(&request);
			if (qdf_status != QDF_STATUS_SUCCESS) {
				hdd_err("failed to set aggr sizes err %d",
					qdf_status);
				ret_val = -EPERM;
			}
		} else {
			hdd_err("TX %d RX %d MPDU aggr size not in range",
				request.tx_aggregation_size,
				request.rx_aggregation_size);
			ret_val = -EINVAL;
		}
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_CONFIG_IGNORE_ASSOC_DISALLOWED]) {
		uint8_t ignore_assoc_disallowed;

		ignore_assoc_disallowed
			= nla_get_u8(tb[
			QCA_WLAN_VENDOR_ATTR_CONFIG_IGNORE_ASSOC_DISALLOWED]);
		hdd_info("Set ignore_assoc_disallowed value - %d",
					ignore_assoc_disallowed);
		if ((ignore_assoc_disallowed <
			QCA_IGNORE_ASSOC_DISALLOWED_DISABLE) ||
			(ignore_assoc_disallowed >
				QCA_IGNORE_ASSOC_DISALLOWED_ENABLE))
			return -EPERM;

		sme_update_session_param(hdd_ctx->hHal,
					adapter->sessionId,
					SIR_PARAM_IGNORE_ASSOC_DISALLOWED,
					ignore_assoc_disallowed);
	}

	return ret_val;
}

/**
 * wlan_hdd_cfg80211_wifi_configuration_set() - Wifi configuration
 * vendor command
 *
 * @wiphy: wiphy device pointer
 * @wdev: wireless device pointer
 * @data: Vendor command data buffer
 * @data_len: Buffer length
 *
 * Handles QCA_WLAN_VENDOR_ATTR_CONFIG_MAX.
 *
 * Return: EOK or other error codes.
 */
static int wlan_hdd_cfg80211_wifi_configuration_set(struct wiphy *wiphy,
						    struct wireless_dev *wdev,
						    const void *data,
						    int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_wifi_configuration_set(wiphy, wdev,
							 data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct
nla_policy
qca_wlan_vendor_wifi_logger_start_policy
[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_START_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_RING_ID]
		= {.type = NLA_U32 },
	[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_VERBOSE_LEVEL]
		= {.type = NLA_U32 },
	[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_FLAGS]
		= {.type = NLA_U32 },
};

/**
 * __wlan_hdd_cfg80211_wifi_logger_start() - This function is used to enable
 * or disable the collection of packet statistics from the firmware
 * @wiphy:    WIPHY structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function enables or disables the collection of packet statistics from
 * the firmware
 *
 * Return: 0 on success and errno on failure
 */
static int __wlan_hdd_cfg80211_wifi_logger_start(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data,
		int data_len)
{
	QDF_STATUS status;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_START_MAX + 1];
	struct sir_wifi_start_log start_log;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		return status;


	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_START_MAX,
				data, data_len,
				qca_wlan_vendor_wifi_logger_start_policy)) {
		hdd_err("Invalid attribute");
		return -EINVAL;
	}

	/* Parse and fetch ring id */
	if (!tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_RING_ID]) {
		hdd_err("attr ATTR failed");
		return -EINVAL;
	}
	start_log.ring_id = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_RING_ID]);
	hdd_info("Ring ID=%d", start_log.ring_id);

	/* Parse and fetch verbose level */
	if (!tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_VERBOSE_LEVEL]) {
		hdd_err("attr verbose_level failed");
		return -EINVAL;
	}
	start_log.verbose_level = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_VERBOSE_LEVEL]);
	hdd_info("verbose_level=%d", start_log.verbose_level);

	/* Parse and fetch flag */
	if (!tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_FLAGS]) {
		hdd_err("attr flag failed");
		return -EINVAL;
	}
	start_log.is_iwpriv_command = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_FLAGS]);
	hdd_info("is_iwpriv_command =%d", start_log.is_iwpriv_command);

	/* size is buff size which can be set using iwpriv command*/
	start_log.size = 0;

	cds_set_ring_log_level(start_log.ring_id, start_log.verbose_level);

	if (start_log.ring_id == RING_ID_WAKELOCK) {
		/* Start/stop wakelock events */
		if (start_log.verbose_level > WLAN_LOG_LEVEL_OFF)
			cds_set_wakelock_logging(true);
		else
			cds_set_wakelock_logging(false);
		return 0;
	}

	status = sme_wifi_start_logger(hdd_ctx->hHal, start_log);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_wifi_start_logger failed(err=%d)",
				status);
		return -EINVAL;
	}
	return 0;
}

/**
 * wlan_hdd_cfg80211_wifi_logger_start() - Wrapper function used to enable
 * or disable the collection of packet statistics from the firmware
 * @wiphy:    WIPHY structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function is used to enable or disable the collection of packet
 * statistics from the firmware
 *
 * Return: 0 on success and errno on failure
 */
static int wlan_hdd_cfg80211_wifi_logger_start(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data,
		int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_wifi_logger_start(wiphy,
			wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct
nla_policy
qca_wlan_vendor_wifi_logger_get_ring_data_policy
[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_GET_RING_DATA_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_GET_RING_DATA_ID]
		= {.type = NLA_U32 },
};

/**
 * __wlan_hdd_cfg80211_wifi_logger_get_ring_data() - Flush per packet stats
 * @wiphy:    WIPHY structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function is used to flush or retrieve the per packet statistics from
 * the driver
 *
 * Return: 0 on success and errno on failure
 */
static int __wlan_hdd_cfg80211_wifi_logger_get_ring_data(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data,
		int data_len)
{
	QDF_STATUS status;
	uint32_t ring_id;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb
		[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_GET_RING_DATA_MAX + 1];

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		return status;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_GET_RING_DATA_MAX,
			data, data_len,
			qca_wlan_vendor_wifi_logger_get_ring_data_policy)) {
		hdd_err("Invalid attribute");
		return -EINVAL;
	}

	/* Parse and fetch ring id */
	if (!tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_GET_RING_DATA_ID]) {
		hdd_err("attr ATTR failed");
		return -EINVAL;
	}

	ring_id = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_WIFI_LOGGER_GET_RING_DATA_ID]);

	if (ring_id == RING_ID_PER_PACKET_STATS) {
		wlan_logging_set_per_pkt_stats();
		hdd_notice("Flushing/Retrieving packet stats");
	} else if (ring_id == RING_ID_DRIVER_DEBUG) {
		/*
		 * As part of DRIVER ring ID, flush both driver and fw logs.
		 * For other Ring ID's driver doesn't have any rings to flush
		 */
		hdd_notice("Bug report triggered by framework");

		status = cds_flush_logs(WLAN_LOG_TYPE_NON_FATAL,
				WLAN_LOG_INDICATOR_FRAMEWORK,
				WLAN_LOG_REASON_CODE_UNUSED,
				true, false);
		if (QDF_STATUS_SUCCESS != status) {
			hdd_err("Failed to trigger bug report");
			return -EINVAL;
		}
	} else {
		wlan_report_log_completion(WLAN_LOG_TYPE_NON_FATAL,
					   WLAN_LOG_INDICATOR_FRAMEWORK,
					   WLAN_LOG_REASON_CODE_UNUSED);
	}
	return 0;
}

/**
 * wlan_hdd_cfg80211_wifi_logger_get_ring_data() - Wrapper to flush packet stats
 * @wiphy:    WIPHY structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function is used to flush or retrieve the per packet statistics from
 * the driver
 *
 * Return: 0 on success and errno on failure
 */
static int wlan_hdd_cfg80211_wifi_logger_get_ring_data(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data,
		int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_wifi_logger_get_ring_data(wiphy,
			wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#ifdef WLAN_FEATURE_OFFLOAD_PACKETS
/**
 * hdd_map_req_id_to_pattern_id() - map request id to pattern id
 * @hdd_ctx: HDD context
 * @request_id: [input] request id
 * @pattern_id: [output] pattern id
 *
 * This function loops through request id to pattern id array
 * if the slot is available, store the request id and return pattern id
 * if entry exists, return the pattern id
 *
 * Return: 0 on success and errno on failure
 */
static int hdd_map_req_id_to_pattern_id(hdd_context_t *hdd_ctx,
					  uint32_t request_id,
					  uint8_t *pattern_id)
{
	uint32_t i;

	mutex_lock(&hdd_ctx->op_ctx.op_lock);
	for (i = 0; i < MAXNUM_PERIODIC_TX_PTRNS; i++) {
		if (hdd_ctx->op_ctx.op_table[i].request_id == MAX_REQUEST_ID) {
			hdd_ctx->op_ctx.op_table[i].request_id = request_id;
			*pattern_id = hdd_ctx->op_ctx.op_table[i].pattern_id;
			mutex_unlock(&hdd_ctx->op_ctx.op_lock);
			return 0;
		} else if (hdd_ctx->op_ctx.op_table[i].request_id ==
					request_id) {
			*pattern_id = hdd_ctx->op_ctx.op_table[i].pattern_id;
			mutex_unlock(&hdd_ctx->op_ctx.op_lock);
			return 0;
		}
	}
	mutex_unlock(&hdd_ctx->op_ctx.op_lock);
	return -EINVAL;
}

/**
 * hdd_unmap_req_id_to_pattern_id() - unmap request id to pattern id
 * @hdd_ctx: HDD context
 * @request_id: [input] request id
 * @pattern_id: [output] pattern id
 *
 * This function loops through request id to pattern id array
 * reset request id to 0 (slot available again) and
 * return pattern id
 *
 * Return: 0 on success and errno on failure
 */
static int hdd_unmap_req_id_to_pattern_id(hdd_context_t *hdd_ctx,
					  uint32_t request_id,
					  uint8_t *pattern_id)
{
	uint32_t i;

	mutex_lock(&hdd_ctx->op_ctx.op_lock);
	for (i = 0; i < MAXNUM_PERIODIC_TX_PTRNS; i++) {
		if (hdd_ctx->op_ctx.op_table[i].request_id == request_id) {
			hdd_ctx->op_ctx.op_table[i].request_id = MAX_REQUEST_ID;
			*pattern_id = hdd_ctx->op_ctx.op_table[i].pattern_id;
			mutex_unlock(&hdd_ctx->op_ctx.op_lock);
			return 0;
		}
	}
	mutex_unlock(&hdd_ctx->op_ctx.op_lock);
	return -EINVAL;
}


/*
 * define short names for the global vendor params
 * used by __wlan_hdd_cfg80211_offloaded_packets()
 */
#define PARAM_MAX QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_MAX
#define PARAM_REQUEST_ID \
		QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_REQUEST_ID
#define PARAM_CONTROL \
		QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_SENDING_CONTROL
#define PARAM_IP_PACKET \
		QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_IP_PACKET_DATA
#define PARAM_SRC_MAC_ADDR \
		QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_SRC_MAC_ADDR
#define PARAM_DST_MAC_ADDR \
		QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_DST_MAC_ADDR
#define PARAM_PERIOD QCA_WLAN_VENDOR_ATTR_OFFLOADED_PACKETS_PERIOD

/**
 * wlan_hdd_add_tx_ptrn() - add tx pattern
 * @adapter: adapter pointer
 * @hdd_ctx: hdd context
 * @tb: nl attributes
 *
 * This function reads the NL attributes and forms a AddTxPtrn message
 * posts it to SME.
 *
 */
static int
wlan_hdd_add_tx_ptrn(hdd_adapter_t *adapter, hdd_context_t *hdd_ctx,
			struct nlattr **tb)
{
	struct sSirAddPeriodicTxPtrn *add_req;
	QDF_STATUS status;
	uint32_t request_id, ret, len;
	uint8_t pattern_id = 0;
	struct qdf_mac_addr dst_addr;
	uint16_t eth_type = htons(ETH_P_IP);

	if (!hdd_conn_is_connected(WLAN_HDD_GET_STATION_CTX_PTR(adapter))) {
		hdd_err("Not in Connected state!");
		return -ENOTSUPP;
	}

	add_req = qdf_mem_malloc(sizeof(*add_req));
	if (!add_req) {
		hdd_err("memory allocation failed");
		return -ENOMEM;
	}

	/* Parse and fetch request Id */
	if (!tb[PARAM_REQUEST_ID]) {
		hdd_err("attr request id failed");
		goto fail;
	}

	request_id = nla_get_u32(tb[PARAM_REQUEST_ID]);
	if (request_id == MAX_REQUEST_ID) {
		hdd_err("request_id cannot be MAX");
		return -EINVAL;
	}
	hdd_notice("Request Id: %u", request_id);

	if (!tb[PARAM_PERIOD]) {
		hdd_err("attr period failed");
		goto fail;
	}
	add_req->usPtrnIntervalMs = nla_get_u32(tb[PARAM_PERIOD]);
	hdd_notice("Period: %u ms", add_req->usPtrnIntervalMs);
	if (add_req->usPtrnIntervalMs == 0) {
		hdd_err("Invalid interval zero, return failure");
		goto fail;
	}

	if (!tb[PARAM_SRC_MAC_ADDR]) {
		hdd_err("attr source mac address failed");
		goto fail;
	}
	nla_memcpy(add_req->mac_address.bytes, tb[PARAM_SRC_MAC_ADDR],
			QDF_MAC_ADDR_SIZE);
	hdd_notice("input src mac address: "MAC_ADDRESS_STR,
			MAC_ADDR_ARRAY(add_req->mac_address.bytes));

	if (!qdf_is_macaddr_equal(&add_req->mac_address,
				  &adapter->macAddressCurrent)) {
		hdd_err("input src mac address and connected ap bssid are different");
		goto fail;
	}

	if (!tb[PARAM_DST_MAC_ADDR]) {
		hdd_err("attr dst mac address failed");
		goto fail;
	}
	nla_memcpy(dst_addr.bytes, tb[PARAM_DST_MAC_ADDR], QDF_MAC_ADDR_SIZE);
	hdd_notice("input dst mac address: "MAC_ADDRESS_STR,
			MAC_ADDR_ARRAY(dst_addr.bytes));

	if (!tb[PARAM_IP_PACKET]) {
		hdd_err("attr ip packet failed");
		goto fail;
	}
	add_req->ucPtrnSize = nla_len(tb[PARAM_IP_PACKET]);
	hdd_notice("IP packet len: %u", add_req->ucPtrnSize);

	if (add_req->ucPtrnSize < 0 ||
		add_req->ucPtrnSize > (PERIODIC_TX_PTRN_MAX_SIZE -
					ETH_HLEN)) {
		hdd_err("Invalid IP packet len: %d",
				add_req->ucPtrnSize);
		goto fail;
	}

	len = 0;
	qdf_mem_copy(&add_req->ucPattern[0], dst_addr.bytes, QDF_MAC_ADDR_SIZE);
	len += QDF_MAC_ADDR_SIZE;
	qdf_mem_copy(&add_req->ucPattern[len], add_req->mac_address.bytes,
			QDF_MAC_ADDR_SIZE);
	len += QDF_MAC_ADDR_SIZE;
	qdf_mem_copy(&add_req->ucPattern[len], &eth_type, 2);
	len += 2;

	/*
	 * This is the IP packet, add 14 bytes Ethernet (802.3) header
	 * ------------------------------------------------------------
	 * | 14 bytes Ethernet (802.3) header | IP header and payload |
	 * ------------------------------------------------------------
	 */
	qdf_mem_copy(&add_req->ucPattern[len],
			nla_data(tb[PARAM_IP_PACKET]),
			add_req->ucPtrnSize);
	add_req->ucPtrnSize += len;

	ret = hdd_map_req_id_to_pattern_id(hdd_ctx, request_id, &pattern_id);
	if (ret) {
		hdd_warn("req id to pattern id failed (ret=%d)", ret);
		goto fail;
	}
	add_req->ucPtrnId = pattern_id;
	hdd_notice("pattern id: %d", add_req->ucPtrnId);

	status = sme_add_periodic_tx_ptrn(hdd_ctx->hHal, add_req);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_add_periodic_tx_ptrn failed (err=%d)", status);
		goto fail;
	}

	EXIT();
	qdf_mem_free(add_req);
	return 0;

fail:
	qdf_mem_free(add_req);
	return -EINVAL;
}

/**
 * wlan_hdd_del_tx_ptrn() - delete tx pattern
 * @adapter: adapter pointer
 * @hdd_ctx: hdd context
 * @tb: nl attributes
 *
 * This function reads the NL attributes and forms a DelTxPtrn message
 * posts it to SME.
 *
 */
static int
wlan_hdd_del_tx_ptrn(hdd_adapter_t *adapter, hdd_context_t *hdd_ctx,
			struct nlattr **tb)
{
	struct sSirDelPeriodicTxPtrn *del_req;
	QDF_STATUS status;
	uint32_t request_id, ret;
	uint8_t pattern_id = 0;

	/* Parse and fetch request Id */
	if (!tb[PARAM_REQUEST_ID]) {
		hdd_err("attr request id failed");
		return -EINVAL;
	}
	request_id = nla_get_u32(tb[PARAM_REQUEST_ID]);
	if (request_id == MAX_REQUEST_ID) {
		hdd_err("request_id cannot be MAX");
		return -EINVAL;
	}

	ret = hdd_unmap_req_id_to_pattern_id(hdd_ctx, request_id, &pattern_id);
	if (ret) {
		hdd_warn("req id to pattern id failed (ret=%d)", ret);
		return -EINVAL;
	}

	del_req = qdf_mem_malloc(sizeof(*del_req));
	if (!del_req) {
		hdd_err("memory allocation failed");
		return -ENOMEM;
	}

	qdf_copy_macaddr(&del_req->mac_address, &adapter->macAddressCurrent);
	hdd_info(MAC_ADDRESS_STR, MAC_ADDR_ARRAY(del_req->mac_address.bytes));
	del_req->ucPtrnId = pattern_id;
	hdd_notice("Request Id: %u Pattern id: %d",
			 request_id, del_req->ucPtrnId);

	status = sme_del_periodic_tx_ptrn(hdd_ctx->hHal, del_req);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_del_periodic_tx_ptrn failed (err=%d)", status);
		goto fail;
	}

	EXIT();
	qdf_mem_free(del_req);
	return 0;

fail:
	qdf_mem_free(del_req);
	return -EINVAL;
}


/**
 * __wlan_hdd_cfg80211_offloaded_packets() - send offloaded packets
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int
__wlan_hdd_cfg80211_offloaded_packets(struct wiphy *wiphy,
				     struct wireless_dev *wdev,
				     const void *data,
				     int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[PARAM_MAX + 1];
	uint8_t control;
	int ret;
	static const struct nla_policy policy[PARAM_MAX + 1] = {
			[PARAM_REQUEST_ID] = { .type = NLA_U32 },
			[PARAM_CONTROL] = { .type = NLA_U32 },
			[PARAM_SRC_MAC_ADDR] = { .type = NLA_BINARY,
						.len = QDF_MAC_ADDR_SIZE },
			[PARAM_DST_MAC_ADDR] = { .type = NLA_BINARY,
						.len = QDF_MAC_ADDR_SIZE },
			[PARAM_PERIOD] = { .type = NLA_U32 },
	};

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (!sme_is_feature_supported_by_fw(WLAN_PERIODIC_TX_PTRN)) {
		hdd_err("Periodic Tx Pattern Offload feature is not supported in FW!");
		return -ENOTSUPP;
	}

	if (nla_parse(tb, PARAM_MAX, data, data_len, policy)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[PARAM_CONTROL]) {
		hdd_err("attr control failed");
		return -EINVAL;
	}
	control = nla_get_u32(tb[PARAM_CONTROL]);
	hdd_notice("Control: %d", control);

	if (control == WLAN_START_OFFLOADED_PACKETS)
		return wlan_hdd_add_tx_ptrn(adapter, hdd_ctx, tb);
	if (control == WLAN_STOP_OFFLOADED_PACKETS)
		return wlan_hdd_del_tx_ptrn(adapter, hdd_ctx, tb);

	hdd_err("Invalid control: %d", control);

	return -EINVAL;
}

/*
 * done with short names for the global vendor params
 * used by __wlan_hdd_cfg80211_offloaded_packets()
 */
#undef PARAM_MAX
#undef PARAM_REQUEST_ID
#undef PARAM_CONTROL
#undef PARAM_IP_PACKET
#undef PARAM_SRC_MAC_ADDR
#undef PARAM_DST_MAC_ADDR
#undef PARAM_PERIOD

/**
 * wlan_hdd_cfg80211_offloaded_packets() - Wrapper to offload packets
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_offloaded_packets(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_offloaded_packets(wiphy,
					wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}
#endif

/*
 * define short names for the global vendor params
 * used by __wlan_hdd_cfg80211_monitor_rssi()
 */
#define PARAM_MAX QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_MAX
#define PARAM_REQUEST_ID QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_REQUEST_ID
#define PARAM_CONTROL QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_CONTROL
#define PARAM_MIN_RSSI QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_MIN_RSSI
#define PARAM_MAX_RSSI QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_MAX_RSSI

/**
 * __wlan_hdd_cfg80211_monitor_rssi() - monitor rssi
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int
__wlan_hdd_cfg80211_monitor_rssi(struct wiphy *wiphy,
				 struct wireless_dev *wdev,
				 const void *data,
				 int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[PARAM_MAX + 1];
	struct rssi_monitor_req req;
	QDF_STATUS status;
	int ret;
	uint32_t control;
	static const struct nla_policy policy[PARAM_MAX + 1] = {
			[PARAM_REQUEST_ID] = { .type = NLA_U32 },
			[PARAM_CONTROL] = { .type = NLA_U32 },
			[PARAM_MIN_RSSI] = { .type = NLA_S8 },
			[PARAM_MAX_RSSI] = { .type = NLA_S8 },
	};

	ENTER_DEV(dev);

	if (wlan_hdd_validate_session_id(adapter->sessionId)) {
		hdd_err("invalid session id: %d", adapter->sessionId);
		return -EINVAL;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (!hdd_conn_is_connected(WLAN_HDD_GET_STATION_CTX_PTR(adapter))) {
		hdd_err("Not in Connected state!");
		return -ENOTSUPP;
	}

	if (nla_parse(tb, PARAM_MAX, data, data_len, policy)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[PARAM_REQUEST_ID]) {
		hdd_err("attr request id failed");
		return -EINVAL;
	}

	if (!tb[PARAM_CONTROL]) {
		hdd_err("attr control failed");
		return -EINVAL;
	}

	req.request_id = nla_get_u32(tb[PARAM_REQUEST_ID]);
	req.session_id = adapter->sessionId;
	control = nla_get_u32(tb[PARAM_CONTROL]);

	if (control == QCA_WLAN_RSSI_MONITORING_START) {
		req.control = true;
		if (!tb[PARAM_MIN_RSSI]) {
			hdd_err("attr min rssi failed");
			return -EINVAL;
		}

		if (!tb[PARAM_MAX_RSSI]) {
			hdd_err("attr max rssi failed");
			return -EINVAL;
		}

		req.min_rssi = nla_get_s8(tb[PARAM_MIN_RSSI]);
		req.max_rssi = nla_get_s8(tb[PARAM_MAX_RSSI]);

		if (!(req.min_rssi < req.max_rssi)) {
			hdd_warn("min_rssi: %d must be less than max_rssi: %d",
					req.min_rssi, req.max_rssi);
			return -EINVAL;
		}
		hdd_notice("Min_rssi: %d Max_rssi: %d",
			req.min_rssi, req.max_rssi);

	} else if (control == QCA_WLAN_RSSI_MONITORING_STOP)
		req.control = false;
	else {
		hdd_err("Invalid control cmd: %d", control);
		return -EINVAL;
	}
	hdd_notice("Request Id: %u Session_id: %d Control: %d",
			req.request_id, req.session_id, req.control);

	status = sme_set_rssi_monitoring(hdd_ctx->hHal, &req);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_set_rssi_monitoring failed(err=%d)", status);
		return -EINVAL;
	}

	return 0;
}

/*
 * done with short names for the global vendor params
 * used by __wlan_hdd_cfg80211_monitor_rssi()
 */
#undef PARAM_MAX
#undef PARAM_CONTROL
#undef PARAM_REQUEST_ID
#undef PARAM_MAX_RSSI
#undef PARAM_MIN_RSSI

/**
 * wlan_hdd_cfg80211_monitor_rssi() - SSR wrapper to rssi monitoring
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * Return: 0 on success; errno on failure
 */
static int
wlan_hdd_cfg80211_monitor_rssi(struct wiphy *wiphy, struct wireless_dev *wdev,
			       const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_monitor_rssi(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * hdd_rssi_threshold_breached() - rssi breached NL event
 * @hddctx: HDD context
 * @data: rssi breached event data
 *
 * This function reads the rssi breached event %data and fill in the skb with
 * NL attributes and send up the NL event.
 *
 * Return: none
 */
void hdd_rssi_threshold_breached(void *hddctx,
				 struct rssi_breach_event *data)
{
	hdd_context_t *hdd_ctx  = hddctx;
	struct sk_buff *skb;

	ENTER();

	if (wlan_hdd_validate_context(hdd_ctx))
		return;
	if (!data) {
		hdd_err("data is null");
		return;
	}

	skb = cfg80211_vendor_event_alloc(hdd_ctx->wiphy,
				  NULL,
				  EXTSCAN_EVENT_BUF_SIZE + NLMSG_HDRLEN,
				  QCA_NL80211_VENDOR_SUBCMD_MONITOR_RSSI_INDEX,
				  GFP_KERNEL);

	if (!skb) {
		hdd_err("cfg80211_vendor_event_alloc failed");
		return;
	}

	hdd_notice("Req Id: %u Current rssi: %d",
			data->request_id, data->curr_rssi);
	hdd_notice("Current BSSID: "MAC_ADDRESS_STR,
			MAC_ADDR_ARRAY(data->curr_bssid.bytes));

	if (nla_put_u32(skb, QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_REQUEST_ID,
		data->request_id) ||
	    nla_put(skb, QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_CUR_BSSID,
		sizeof(data->curr_bssid), data->curr_bssid.bytes) ||
	    nla_put_s8(skb, QCA_WLAN_VENDOR_ATTR_RSSI_MONITORING_CUR_RSSI,
		data->curr_rssi)) {
		hdd_err("nla put fail");
		goto fail;
	}

	cfg80211_vendor_event(skb, GFP_KERNEL);
	return;

fail:
	kfree_skb(skb);
	return;
}

static const struct nla_policy
ns_offload_set_policy[QCA_WLAN_VENDOR_ATTR_ND_OFFLOAD_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_ND_OFFLOAD_FLAG] = {.type = NLA_U8},
};

/**
 * __wlan_hdd_cfg80211_set_ns_offload() - enable/disable NS offload
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Return: 0 on success, negative errno on failure
 */
static int
__wlan_hdd_cfg80211_set_ns_offload(struct wiphy *wiphy,
			struct wireless_dev *wdev,
			const void *data, int data_len)
{
	int status;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_ND_OFFLOAD_MAX + 1];
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter =  WLAN_HDD_GET_PRIV_PTR(dev);

	ENTER_DEV(wdev->netdev);

	status = wlan_hdd_validate_context(pHddCtx);
	if (0 != status)
		return status;
	if (!pHddCtx->config->fhostNSOffload) {
		hdd_err("ND Offload not supported");
		return -EINVAL;
	}

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_ND_OFFLOAD_MAX,
			(struct nlattr *)data,
			data_len, ns_offload_set_policy)) {
		hdd_err("nla_parse failed");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_ND_OFFLOAD_FLAG]) {
		hdd_err("ND Offload flag attribute not present");
		return -EINVAL;
	}

	pHddCtx->ns_offload_enable =
		nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ND_OFFLOAD_FLAG]);

	/* update ns offload in case it is already enabled/disabled */
	hdd_conf_ns_offload(adapter, pHddCtx->ns_offload_enable);

	return 0;
}

/**
 * wlan_hdd_cfg80211_set_ns_offload() - enable/disable NS offload
 * @wiphy:   pointer to wireless wiphy structure.
 * @wdev:    pointer to wireless_dev structure.
 * @data:    Pointer to the data to be passed via vendor interface
 * @data_len:Length of the data to be passed
 *
 * Return:   Return the Success or Failure code.
 */
static int wlan_hdd_cfg80211_set_ns_offload(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_ns_offload(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/** __wlan_hdd_cfg80211_get_preferred_freq_list() - get preferred frequency list
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * This function return the preferred frequency list generated by the policy
 * manager.
 *
 * Return: success or failure code
 */
static int __wlan_hdd_cfg80211_get_preferred_freq_list(struct wiphy *wiphy,
						 struct wireless_dev
						 *wdev, const void *data,
						 int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int i, ret = 0;
	QDF_STATUS status;
	uint8_t pcl[QDF_MAX_NUM_CHAN], weight_list[QDF_MAX_NUM_CHAN];
	uint32_t pcl_len = 0;
	uint32_t freq_list[QDF_MAX_NUM_CHAN];
	enum cds_con_mode intf_mode;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_MAX + 1];
	struct sk_buff *reply_skb;

	ENTER_DEV(wdev->netdev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return -EINVAL;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE]) {
		hdd_err("attr interface type failed");
		return -EINVAL;
	}

	intf_mode = nla_get_u32(tb
		    [QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE]);

	if (intf_mode < CDS_STA_MODE || intf_mode >= CDS_MAX_NUM_OF_MODE) {
		hdd_err("Invalid interface type");
		return -EINVAL;
	}

	hdd_debug("Userspace requested pref freq list");

	status = cds_get_pcl(intf_mode, pcl, &pcl_len,
				weight_list, QDF_ARRAY_SIZE(weight_list));
	if (status != QDF_STATUS_SUCCESS) {
		hdd_err("Get pcl failed");
		return -EINVAL;
	}

	/* convert channel number to frequency */
	for (i = 0; i < pcl_len; i++) {
		if (pcl[i] <= ARRAY_SIZE(hdd_channels_2_4_ghz))
			freq_list[i] =
				ieee80211_channel_to_frequency(pcl[i],
							NL80211_BAND_2GHZ);
		else
			freq_list[i] =
				ieee80211_channel_to_frequency(pcl[i],
							NL80211_BAND_5GHZ);
	}

	/* send the freq_list back to supplicant */
	reply_skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, sizeof(u32) +
							sizeof(u32) *
							pcl_len +
							NLMSG_HDRLEN);

	if (!reply_skb) {
		hdd_err("Allocate reply_skb failed");
		return -EINVAL;
	}

	if (nla_put_u32(reply_skb,
		QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_IFACE_TYPE,
			intf_mode) ||
		nla_put(reply_skb,
			QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST,
			sizeof(uint32_t) * pcl_len,
			freq_list)) {
		hdd_err("nla put fail");
		kfree_skb(reply_skb);
		return -EINVAL;
	}

	return cfg80211_vendor_cmd_reply(reply_skb);
}

/** wlan_hdd_cfg80211_get_preferred_freq_list () - get preferred frequency list
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * This function return the preferred frequency list generated by the policy
 * manager.
 *
 * Return: success or failure code
 */
static int wlan_hdd_cfg80211_get_preferred_freq_list(struct wiphy *wiphy,
						 struct wireless_dev
						 *wdev, const void *data,
						 int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_preferred_freq_list(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_set_probable_oper_channel () - set probable channel
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_set_probable_oper_channel(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	struct net_device *ndev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int ret = 0;
	enum cds_con_mode intf_mode;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_GET_PREFERRED_FREQ_LIST_MAX + 1];
	uint32_t channel_hint;

	ENTER_DEV(ndev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE]) {
		hdd_err("attr interface type failed");
		return -EINVAL;
	}

	intf_mode = nla_get_u32(tb
		    [QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_IFACE_TYPE]);

	if (intf_mode < CDS_STA_MODE || intf_mode >= CDS_MAX_NUM_OF_MODE) {
		hdd_err("Invalid interface type");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ]) {
		hdd_err("attr probable freq failed");
		return -EINVAL;
	}

	channel_hint = cds_freq_to_chan(nla_get_u32(tb
			[QCA_WLAN_VENDOR_ATTR_PROBABLE_OPER_CHANNEL_FREQ]));

	/* check pcl table */
	if (!cds_allow_concurrency(intf_mode,
					channel_hint, HW_MODE_20_MHZ)) {
		hdd_err("Set channel hint failed due to concurrency check");
		return -EINVAL;
	}

	if (0 != wlan_hdd_check_remain_on_channel(adapter))
		hdd_warn("Remain On Channel Pending");

	ret = qdf_reset_connection_update();
	if (!QDF_IS_STATUS_SUCCESS(ret))
		hdd_err("clearing event failed");

	ret = cds_current_connections_update(adapter->sessionId,
				channel_hint,
				SIR_UPDATE_REASON_SET_OPER_CHAN);
	if (QDF_STATUS_E_FAILURE == ret) {
		/* return in the failure case */
		hdd_err("ERROR: connections update failed!!");
		return -EINVAL;
	}

	if (QDF_STATUS_SUCCESS == ret) {
		/*
		 * Success is the only case for which we expect hw mode
		 * change to take place, hence we need to wait.
		 * For any other return value it should be a pass
		 * through
		 */
		ret = qdf_wait_for_connection_update();
		if (!QDF_IS_STATUS_SUCCESS(ret)) {
			hdd_err("ERROR: qdf wait for event failed!!");
			return -EINVAL;
		}

	}

	return 0;
}

/**
 * wlan_hdd_cfg80211_set_probable_oper_channel () - set probable channel
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_set_probable_oper_channel(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_probable_oper_channel(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct
nla_policy
qca_wlan_vendor_attr_policy[QCA_WLAN_VENDOR_ATTR_MAX+1] = {
	[QCA_WLAN_VENDOR_ATTR_MAC_ADDR] = { .type = NLA_UNSPEC },
};

/**
 * __wlan_hdd_cfg80211_get_link_properties() - Get link properties
 * @wiphy: WIPHY structure pointer
 * @wdev: Wireless device structure pointer
 * @data: Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function is used to get link properties like nss, rate flags and
 * operating frequency for the active connection with the given peer.
 *
 * Return: 0 on success and errno on failure
 */
static int __wlan_hdd_cfg80211_get_link_properties(struct wiphy *wiphy,
						   struct wireless_dev *wdev,
						   const void *data,
						   int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_station_ctx_t *hdd_sta_ctx;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX+1];
	uint8_t peer_mac[QDF_MAC_ADDR_SIZE];
	uint32_t sta_id;
	struct sk_buff *reply_skb;
	uint32_t rate_flags = 0;
	uint8_t nss;
	uint8_t final_rate_flags = 0;
	uint32_t freq;

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if (0 != wlan_hdd_validate_context(hdd_ctx))
		return -EINVAL;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
		      qca_wlan_vendor_attr_policy)) {
		hdd_err("Invalid attribute");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_MAC_ADDR]) {
		hdd_err("Attribute peerMac not provided for mode=%d",
		       adapter->device_mode);
		return -EINVAL;
	}

	qdf_mem_copy(peer_mac, nla_data(tb[QCA_WLAN_VENDOR_ATTR_MAC_ADDR]),
		     QDF_MAC_ADDR_SIZE);
	hdd_notice("peerMac="MAC_ADDRESS_STR" for device_mode:%d",
	       MAC_ADDR_ARRAY(peer_mac), adapter->device_mode);

	if (adapter->device_mode == QDF_STA_MODE ||
	    adapter->device_mode == QDF_P2P_CLIENT_MODE) {
		hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter);
		if ((hdd_sta_ctx->conn_info.connState !=
			eConnectionState_Associated) ||
		    qdf_mem_cmp(hdd_sta_ctx->conn_info.bssId.bytes,
			peer_mac, QDF_MAC_ADDR_SIZE)) {
			hdd_err("Not Associated to mac "MAC_ADDRESS_STR,
			       MAC_ADDR_ARRAY(peer_mac));
			return -EINVAL;
		}

		nss  = hdd_sta_ctx->conn_info.nss;
		freq = cds_chan_to_freq(
				hdd_sta_ctx->conn_info.operationChannel);
		rate_flags = hdd_sta_ctx->conn_info.rate_flags;
	} else if (adapter->device_mode == QDF_P2P_GO_MODE ||
		   adapter->device_mode == QDF_SAP_MODE) {

		for (sta_id = 0; sta_id < WLAN_MAX_STA_COUNT; sta_id++) {
			if (adapter->aStaInfo[sta_id].isUsed &&
			    !qdf_is_macaddr_broadcast(
				&adapter->aStaInfo[sta_id].macAddrSTA) &&
			    !qdf_mem_cmp(
				&adapter->aStaInfo[sta_id].macAddrSTA.bytes,
				peer_mac, QDF_MAC_ADDR_SIZE))
				break;
		}

		if (WLAN_MAX_STA_COUNT == sta_id) {
			hdd_err("No active peer with mac="MAC_ADDRESS_STR,
			       MAC_ADDR_ARRAY(peer_mac));
			return -EINVAL;
		}

		nss = adapter->aStaInfo[sta_id].nss;
		freq = cds_chan_to_freq(
			(WLAN_HDD_GET_AP_CTX_PTR(adapter))->operatingChannel);
		rate_flags = adapter->aStaInfo[sta_id].rate_flags;
	} else {
		hdd_err("Not Associated! with mac "MAC_ADDRESS_STR,
		       MAC_ADDR_ARRAY(peer_mac));
		return -EINVAL;
	}

	if (!(rate_flags & eHAL_TX_RATE_LEGACY)) {
		if (rate_flags & eHAL_TX_RATE_VHT80) {
			final_rate_flags |= RATE_INFO_FLAGS_VHT_MCS;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)) && !defined(WITH_BACKPORTS)
			final_rate_flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
#endif
		} else if (rate_flags & eHAL_TX_RATE_VHT40) {
			final_rate_flags |= RATE_INFO_FLAGS_VHT_MCS;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)) && !defined(WITH_BACKPORTS)
			final_rate_flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
#endif
		} else if (rate_flags & eHAL_TX_RATE_VHT20) {
			final_rate_flags |= RATE_INFO_FLAGS_VHT_MCS;
		} else if (rate_flags &
				(eHAL_TX_RATE_HT20 | eHAL_TX_RATE_HT40)) {
			final_rate_flags |= RATE_INFO_FLAGS_MCS;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 0, 0)) && !defined(WITH_BACKPORTS)
			if (rate_flags & eHAL_TX_RATE_HT40)
				final_rate_flags |=
					RATE_INFO_FLAGS_40_MHZ_WIDTH;
#endif
		}

		if (rate_flags & eHAL_TX_RATE_SGI) {
			if (!(final_rate_flags & RATE_INFO_FLAGS_VHT_MCS))
				final_rate_flags |= RATE_INFO_FLAGS_MCS;
			final_rate_flags |= RATE_INFO_FLAGS_SHORT_GI;
		}
	}

	reply_skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy,
			sizeof(u8) + sizeof(u8) + sizeof(u32) + NLMSG_HDRLEN);

	if (NULL == reply_skb) {
		hdd_err("getLinkProperties: skb alloc failed");
		return -EINVAL;
	}

	if (nla_put_u8(reply_skb,
		QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_NSS,
		nss) ||
	    nla_put_u8(reply_skb,
		QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_RATE_FLAGS,
		final_rate_flags) ||
	    nla_put_u32(reply_skb,
		QCA_WLAN_VENDOR_ATTR_LINK_PROPERTIES_FREQ,
		freq)) {
		hdd_err("nla_put failed");
		kfree_skb(reply_skb);
		return -EINVAL;
	}

	return cfg80211_vendor_cmd_reply(reply_skb);
}

/**
 * wlan_hdd_cfg80211_get_link_properties() - Wrapper function to get link
 * properties.
 * @wiphy: WIPHY structure pointer
 * @wdev: Wireless device structure pointer
 * @data: Pointer to the data received
 * @data_len: Length of the data received
 *
 * This function is used to get link properties like nss, rate flags and
 * operating frequency for the active connection with the given peer.
 *
 * Return: 0 on success and errno on failure
 */
static int wlan_hdd_cfg80211_get_link_properties(struct wiphy *wiphy,
						 struct wireless_dev *wdev,
						 const void *data,
						 int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_link_properties(wiphy,
			wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct
nla_policy
qca_wlan_vendor_ota_test_policy
[QCA_WLAN_VENDOR_ATTR_OTA_TEST_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_OTA_TEST_ENABLE] = {.type = NLA_U8 },
};

/**
 * __wlan_hdd_cfg80211_set_ota_test () - enable/disable OTA test
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_set_ota_test(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	tHalHandle hal = WLAN_HDD_GET_HAL_CTX(adapter);
	hdd_context_t *hdd_ctx  = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_OTA_TEST_MAX + 1];
	uint8_t ota_enable = 0;
	QDF_STATUS status;
	uint32_t current_roam_state;

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if (0 != wlan_hdd_validate_context(hdd_ctx))
		return -EINVAL;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_OTA_TEST_MAX,
		      data, data_len,
		      qca_wlan_vendor_ota_test_policy)) {
		hdd_err("invalid attr");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_OTA_TEST_ENABLE]) {
		hdd_err("attr ota test failed");
		return -EINVAL;
	}

	ota_enable = nla_get_u8(
		tb[QCA_WLAN_VENDOR_ATTR_OTA_TEST_ENABLE]);

	hdd_info(" OTA test enable = %d", ota_enable);
	if (ota_enable != 1) {
		hdd_err("Invalid value, only enable test mode is supported!");
		return -EINVAL;
	}

	current_roam_state =
			sme_get_current_roam_state(hal, adapter->sessionId);
	status = sme_stop_roaming(hal, adapter->sessionId,
					eCsrHddIssued);
	if (status != QDF_STATUS_SUCCESS) {
		hdd_err("Enable/Disable roaming failed");
		return -EINVAL;
	}

	status = sme_ps_enable_disable(hal, adapter->sessionId,
					SME_PS_DISABLE);
	if (status != QDF_STATUS_SUCCESS) {
		hdd_err("Enable/Disable power save failed");
		/* restore previous roaming setting */
		if (current_roam_state == eCSR_ROAMING_STATE_JOINING ||
			 current_roam_state == eCSR_ROAMING_STATE_JOINED)
			status = sme_start_roaming(hal, adapter->sessionId,
						eCsrHddIssued);
		else if (current_roam_state == eCSR_ROAMING_STATE_STOP ||
			 current_roam_state == eCSR_ROAMING_STATE_IDLE)
			status = sme_stop_roaming(hal, adapter->sessionId,
						eCsrHddIssued);

		if (status != QDF_STATUS_SUCCESS)
			hdd_err("Restoring roaming state failed");

		return -EINVAL;
	}


	return 0;
}

/**
 * wlan_hdd_cfg80211_set_ota_test () - Enable or disable OTA test
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_set_ota_test(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data,
					int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_ota_test(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_txpower_scale () - txpower scaling
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_txpower_scale(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter;
	int ret;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_MAX + 1];
	uint8_t scale_value;
	QDF_STATUS status;

	ENTER_DEV(dev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	adapter = WLAN_HDD_GET_PRIV_PTR(dev);

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE]) {
		hdd_err("attr tx power scale failed");
		return -EINVAL;
	}

	scale_value = nla_get_u8(tb
		    [QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE]);

	if (scale_value > MAX_TXPOWER_SCALE) {
		hdd_err("Invalid tx power scale level");
		return -EINVAL;
	}

	status = wma_set_tx_power_scale(adapter->sessionId, scale_value);

	if (QDF_STATUS_SUCCESS != status) {
		hdd_err("Set tx power scale failed");
		return -EINVAL;
	}

	return 0;
}

/**
 * wlan_hdd_cfg80211_txpower_scale () - txpower scaling
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_txpower_scale(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_txpower_scale(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_txpower_scale_decr_db () - txpower scaling
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_txpower_scale_decr_db(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter;
	int ret;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_DECR_DB_MAX + 1];
	uint8_t scale_value;
	QDF_STATUS status;

	ENTER_DEV(dev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	adapter = WLAN_HDD_GET_PRIV_PTR(dev);

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_DECR_DB_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_DECR_DB]) {
		hdd_err("attr tx power decrease db value failed");
		return -EINVAL;
	}

	scale_value = nla_get_u8(tb
		    [QCA_WLAN_VENDOR_ATTR_TXPOWER_SCALE_DECR_DB]);

	status = wma_set_tx_power_scale_decr_db(adapter->sessionId,
							scale_value);

	if (QDF_STATUS_SUCCESS != status) {
		hdd_err("Set tx power decrease db failed");
		return -EINVAL;
	}

	return 0;
}

/**
 * wlan_hdd_cfg80211_txpower_scale_decr_db () - txpower scaling
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_txpower_scale_decr_db(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_txpower_scale_decr_db(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_conditional_chan_switch() - Conditional channel switch
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Processes the conditional channel switch request and invokes the helper
 * APIs to process the channel switch request.
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_conditional_chan_switch(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter;
	struct nlattr
		*tb[QCA_WLAN_VENDOR_ATTR_SAP_CONDITIONAL_CHAN_SWITCH_MAX + 1];
	uint32_t freq_len, i;
	uint32_t *freq;
	uint8_t chans[QDF_MAX_NUM_CHAN];

	ENTER_DEV(dev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (!hdd_ctx->config->enableDFSMasterCap) {
		hdd_err("DFS master capability is not present in the driver");
		return -EINVAL;
	}

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	if (adapter->device_mode != QDF_SAP_MODE) {
		hdd_err("Invalid device mode %d", adapter->device_mode);
		return -EINVAL;
	}

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_SAP_CONDITIONAL_CHAN_SWITCH_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_SAP_CONDITIONAL_CHAN_SWITCH_FREQ_LIST]) {
		hdd_err("Frequency list is missing");
		return -EINVAL;
	}

	freq_len = nla_len(
		tb[QCA_WLAN_VENDOR_ATTR_SAP_CONDITIONAL_CHAN_SWITCH_FREQ_LIST])/
		sizeof(uint32_t);

	if (freq_len > QDF_MAX_NUM_CHAN) {
		hdd_err("insufficient space to hold channels");
		return -ENOMEM;
	}

	hdd_debug("freq_len=%d", freq_len);

	freq = nla_data(
		tb[QCA_WLAN_VENDOR_ATTR_SAP_CONDITIONAL_CHAN_SWITCH_FREQ_LIST]);


	for (i = 0; i < freq_len; i++) {
		if (freq[i] == 0)
			chans[i] = 0;
		else
			chans[i] = ieee80211_frequency_to_channel(freq[i]);

		hdd_debug("freq[%d]=%d", i, freq[i]);
	}

	/*
	 * The input frequency list from user space is designed to be a
	 * priority based frequency list. This is only to accommodate any
	 * future request. But, current requirement is only to perform CAC
	 * on a single channel. So, the first entry from the list is picked.
	 *
	 * If channel is zero, any channel in the available outdoor regulatory
	 * domain will be selected.
	 */
	ret = wlan_hdd_request_pre_cac(chans[0]);
	if (ret) {
		hdd_err("pre cac request failed with reason:%d", ret);
		return ret;
	}

	return 0;
}

/**
 * __wlan_hdd_cfg80211_p2p_lo_start () - start P2P Listen Offload
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * This function is to process the p2p listen offload start vendor
 * command. It parses the input parameters and invoke WMA API to
 * send the command to firmware.
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_p2p_lo_start(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter;
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_MAX + 1];
	struct sir_p2p_lo_start params;
	QDF_STATUS status;

	ENTER_DEV(dev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	if ((adapter->device_mode != QDF_P2P_DEVICE_MODE) &&
	    (adapter->device_mode != QDF_P2P_CLIENT_MODE) &&
	    (adapter->device_mode != QDF_P2P_GO_MODE)) {
		hdd_err("Invalid device mode %d", adapter->device_mode);
		return -EINVAL;
	}

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	memset(&params, 0, sizeof(params));

	if (!tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CTRL_FLAG])
		params.ctl_flags = 1;  /* set to default value */
	else
		params.ctl_flags = nla_get_u32(tb
			[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CTRL_FLAG]);

	if (!tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL] ||
	    !tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD] ||
	    !tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL] ||
	    !tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT] ||
	    !tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES] ||
	    !tb[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE]) {
		hdd_err("Attribute parsing failed");
		return -EINVAL;
	}

	params.vdev_id = adapter->sessionId;
	params.freq = nla_get_u32(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_CHANNEL]);
	if ((params.freq != 2412) && (params.freq != 2437) &&
		(params.freq != 2462)) {
		hdd_err("Invalid listening channel: %d", params.freq);
		return -EINVAL;
	}

	params.period = nla_get_u32(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_PERIOD]);
	if (!((params.period > 0) && (params.period < UINT_MAX))) {
		hdd_err("Invalid period: %d", params.period);
		return -EINVAL;
	}

	params.interval = nla_get_u32(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_INTERVAL]);
	if (!((params.interval > 0) && (params.interval < UINT_MAX))) {
		hdd_err("Invalid interval: %d", params.interval);
		return -EINVAL;
	}

	params.count = nla_get_u32(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_COUNT]);
	if (!((params.count >= 0) && (params.count < UINT_MAX))) {
		hdd_err("Invalid count: %d", params.count);
		return -EINVAL;
	}

	params.device_types = nla_data(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES]);
	if (params.device_types == NULL) {
		hdd_err("Invalid device types");
		return -EINVAL;
	}

	params.dev_types_len = nla_len(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_DEVICE_TYPES]);
	if (params.dev_types_len < 8) {
		hdd_err("Invalid device type length: %d", params.dev_types_len);
		return -EINVAL;
	}

	params.probe_resp_tmplt = nla_data(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE]);
	if (params.probe_resp_tmplt == NULL) {
		hdd_err("Invalid probe response template");
		return -EINVAL;
	}

	params.probe_resp_len = nla_len(tb
		[QCA_WLAN_VENDOR_ATTR_P2P_LISTEN_OFFLOAD_VENDOR_IE]);
	if (params.probe_resp_len == 0) {
		hdd_err("Invalid probe resp template length: %d",
				params.probe_resp_len);
		return -EINVAL;
	}

	hdd_debug("P2P LO params: freq=%d, period=%d, interval=%d, count=%d",
		  params.freq, params.period, params.interval, params.count);

	status = wma_p2p_lo_start(&params);

	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("P2P LO start failed");
		return -EINVAL;
	}

	return 0;
}


/**
 * wlan_hdd_cfg80211_p2p_lo_start () - start P2P Listen Offload
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * This function inovkes internal __wlan_hdd_cfg80211_p2p_lo_start()
 * to process p2p listen offload start vendor command.
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_p2p_lo_start(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_p2p_lo_start(wiphy, wdev,
					data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_p2p_lo_stop () - stop P2P Listen Offload
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * This function is to process the p2p listen offload stop vendor
 * command. It invokes WMA API to send command to firmware.
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_p2p_lo_stop(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	QDF_STATUS status;
	hdd_adapter_t *adapter;
	struct net_device *dev = wdev->netdev;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	if ((adapter->device_mode != QDF_P2P_DEVICE_MODE) &&
	    (adapter->device_mode != QDF_P2P_CLIENT_MODE) &&
	    (adapter->device_mode != QDF_P2P_GO_MODE)) {
		hdd_err("Invalid device mode");
		return -EINVAL;
	}

	status = wma_p2p_lo_stop(adapter->sessionId);

	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("P2P LO stop failed");
		return -EINVAL;
	}

	return 0;
}

/**
 * wlan_hdd_cfg80211_p2p_lo_stop () - stop P2P Listen Offload
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * This function inovkes internal __wlan_hdd_cfg80211_p2p_lo_stop()
 * to process p2p listen offload stop vendor command.
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_p2p_lo_stop(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_p2p_lo_stop(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_cfg80211_conditional_chan_switch() - SAP conditional channel switch
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Data length
 *
 * Inovkes internal API __wlan_hdd_cfg80211_conditional_chan_switch()
 * to process the conditional channel switch request.
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_conditional_chan_switch(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_conditional_chan_switch(wiphy, wdev,
						data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * define short names for the global vendor params
 * used by __wlan_hdd_cfg80211_bpf_offload()
 */
#define BPF_INVALID \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_INVALID
#define BPF_SET_RESET \
	QCA_WLAN_VENDOR_ATTR_SET_RESET_PACKET_FILTER
#define BPF_VERSION \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_VERSION
#define BPF_FILTER_ID \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_ID
#define BPF_PACKET_SIZE \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_SIZE
#define BPF_CURRENT_OFFSET \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_CURRENT_OFFSET
#define BPF_PROGRAM \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_PROGRAM
#define BPF_MAX \
	QCA_WLAN_VENDOR_ATTR_PACKET_FILTER_MAX

static const struct nla_policy
wlan_hdd_bpf_offload_policy[BPF_MAX + 1] = {
	[BPF_SET_RESET] = {.type = NLA_U32},
	[BPF_VERSION] = {.type = NLA_U32},
	[BPF_FILTER_ID] = {.type = NLA_U32},
	[BPF_PACKET_SIZE] = {.type = NLA_U32},
	[BPF_CURRENT_OFFSET] = {.type = NLA_U32},
	[BPF_PROGRAM] = {.type = NLA_U8},
};

struct bpf_offload_priv {
	struct sir_bpf_get_offload bpf_get_offload;
};

/**
 * hdd_get_bpf_offload_cb() - Callback function to BPF Offload
 * @context: opaque context originally passed to SME.  HDD always passes
 *	a cookie for the request context
 * @bpf_get_offload: struct for get offload
 *
 * This function receives the response/data from the lower layer and
 * checks to see if the thread is still waiting then post the results to
 * upper layer, if the request has timed out then ignore.
 *
 * Return: None
 */
static void hdd_get_bpf_offload_cb(void *context,
				   struct sir_bpf_get_offload *data)
{
	struct hdd_request *request;
	struct bpf_offload_priv *priv;

	ENTER();

	request = hdd_request_get(context);
	if (!request) {
		hdd_err("Obsolete request");
		return;
	}

	priv = hdd_request_priv(request);
	priv->bpf_get_offload = *data;
	hdd_request_complete(request);
	hdd_request_put(request);
}

/**
 * hdd_post_get_bpf_capabilities_rsp() - Callback function to BPF Offload
 * @hdd_context: hdd_context
 * @bpf_get_offload: struct for get offload
 *
 * Return: 0 on success, error number otherwise.
 */
static int hdd_post_get_bpf_capabilities_rsp(hdd_context_t *hdd_ctx,
			    struct sir_bpf_get_offload *bpf_get_offload)
{
	struct sk_buff *skb;
	uint32_t nl_buf_len;

	ENTER();

	nl_buf_len = NLMSG_HDRLEN;
	nl_buf_len +=
		(sizeof(bpf_get_offload->max_bytes_for_bpf_inst) + NLA_HDRLEN) +
		(sizeof(bpf_get_offload->bpf_version) + NLA_HDRLEN);

	skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len);
	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	hdd_notice("BPF Version: %u BPF max bytes: %u",
			bpf_get_offload->bpf_version,
			bpf_get_offload->max_bytes_for_bpf_inst);

	if (nla_put_u32(skb, BPF_PACKET_SIZE,
			bpf_get_offload->max_bytes_for_bpf_inst) ||
	    nla_put_u32(skb, BPF_VERSION, bpf_get_offload->bpf_version)) {
		hdd_err("nla put failure");
		goto nla_put_failure;
	}

	cfg80211_vendor_cmd_reply(skb);
	EXIT();
	return 0;

nla_put_failure:
	kfree_skb(skb);
	return -EINVAL;
}

/**
 * hdd_get_bpf_offload - Get BPF offload Capabilities
 * @hdd_ctx: Hdd context
 *
 * Return: 0 on success, errno on failure
 */
static int hdd_get_bpf_offload(hdd_context_t *hdd_ctx)
{
	QDF_STATUS status;
	int ret;
	void *cookie;
	struct hdd_request *request;
	struct bpf_offload_priv *priv;
	static const struct hdd_request_params params = {
		.priv_size = sizeof(*priv),
		.timeout_ms = WLAN_WAIT_TIME_BPF,
	};

	ENTER();

	request = hdd_request_alloc(&params);
	if (!request) {
		hdd_err("Unable to allocate request");
		return -EINVAL;
	}
	cookie = hdd_request_cookie(request);

	status = sme_get_bpf_offload_capabilities(hdd_ctx->hHal,
						  hdd_get_bpf_offload_cb,
						  cookie);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("Unable to retrieve BPF caps");
		ret = qdf_status_to_os_return(status);
		goto cleanup;
	}
	ret = hdd_request_wait_for_response(request);
	if (ret) {
		hdd_err("Target response timed out");
		goto cleanup;
	}
	priv = hdd_request_priv(request);
	ret = hdd_post_get_bpf_capabilities_rsp(hdd_ctx,
						&priv->bpf_get_offload);
	if (ret)
		hdd_err("Failed to post get bpf capabilities");

cleanup:
	/*
	 * either we never sent a request to SME, we sent a request to
	 * SME and timed out, or we sent a request to SME, received a
	 * response from SME, and posted the response to userspace.
	 * regardless we are done with the request.
	 */
	hdd_request_put(request);
	EXIT();

	return ret;
}

/**
 * hdd_set_reset_bpf_offload - Post set/reset bpf to SME
 * @hdd_ctx: Hdd context
 * @tb: Length of @data
 * @adapter: pointer to adapter struct
 *
 * Return: 0 on success; errno on failure
 */
static int hdd_set_reset_bpf_offload(hdd_context_t *hdd_ctx,
				     struct nlattr **tb,
				     hdd_adapter_t *adapter)
{
	struct sir_bpf_set_offload *bpf_set_offload;
	QDF_STATUS status;
	int prog_len;
	int ret = 0;

	ENTER();

	if (adapter->device_mode == QDF_STA_MODE ||
	    adapter->device_mode == QDF_P2P_CLIENT_MODE) {
		if (!hdd_conn_is_connected(
		    WLAN_HDD_GET_STATION_CTX_PTR(adapter))) {
			hdd_err("Not in Connected state!");
			return -ENOTSUPP;
		}
	}

	bpf_set_offload = qdf_mem_malloc(sizeof(*bpf_set_offload));
	if (bpf_set_offload == NULL) {
		hdd_err("qdf_mem_malloc failed for bpf_set_offload");
		return -ENOMEM;
	}

	/* Parse and fetch bpf packet size */
	if (!tb[BPF_PACKET_SIZE]) {
		hdd_err("attr bpf packet size failed");
		ret = -EINVAL;
		goto fail;
	}
	bpf_set_offload->total_length = nla_get_u32(tb[BPF_PACKET_SIZE]);

	if (!bpf_set_offload->total_length) {
		hdd_notice("BPF reset packet filter received");
		goto post_sme;
	}

	/* Parse and fetch bpf program */
	if (!tb[BPF_PROGRAM]) {
		hdd_err("attr bpf program failed");
		ret = -EINVAL;
		goto fail;
	}

	prog_len = nla_len(tb[BPF_PROGRAM]);
	bpf_set_offload->program = qdf_mem_malloc(sizeof(uint8_t) * prog_len);

	if (bpf_set_offload->program == NULL) {
		hdd_err("qdf_mem_malloc failed for bpf offload program");
		ret = -ENOMEM;
		goto fail;
	}

	bpf_set_offload->current_length = prog_len;
	nla_memcpy(bpf_set_offload->program, tb[BPF_PROGRAM], prog_len);
	bpf_set_offload->session_id = adapter->sessionId;

	hdd_info("BPF set instructions");
	QDF_TRACE_HEX_DUMP(QDF_MODULE_ID_HDD, QDF_TRACE_LEVEL_INFO,
			   bpf_set_offload->program, prog_len);

	/* Parse and fetch filter Id */
	if (!tb[BPF_FILTER_ID]) {
		hdd_err("attr filter id failed");
		ret = -EINVAL;
		goto fail;
	}
	bpf_set_offload->filter_id = nla_get_u32(tb[BPF_FILTER_ID]);

	/* Parse and fetch current offset */
	if (!tb[BPF_CURRENT_OFFSET]) {
		hdd_err("attr current offset failed");
		ret = -EINVAL;
		goto fail;
	}
	bpf_set_offload->current_offset = nla_get_u32(tb[BPF_CURRENT_OFFSET]);

post_sme:
	hdd_notice("Posting BPF SET/RESET to SME, session_id: %d Bpf Version: %d filter ID: %d total_length: %d current_length: %d current offset: %d",
			bpf_set_offload->session_id,
			bpf_set_offload->version,
			bpf_set_offload->filter_id,
			bpf_set_offload->total_length,
			bpf_set_offload->current_length,
			bpf_set_offload->current_offset);

	status = sme_set_bpf_instructions(hdd_ctx->hHal, bpf_set_offload);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_set_bpf_instructions failed(err=%d)", status);
		ret = -EINVAL;
		goto fail;
	}
	EXIT();

fail:
	if (bpf_set_offload->current_length)
		qdf_mem_free(bpf_set_offload->program);
	qdf_mem_free(bpf_set_offload);
	return ret;
}

/**
 * wlan_hdd_cfg80211_bpf_offload() - Set/Reset to BPF Offload
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * Return: 0 on success; errno on failure
 */
static int
__wlan_hdd_cfg80211_bpf_offload(struct wiphy *wiphy,
				struct wireless_dev *wdev,
				const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *pAdapter =  WLAN_HDD_GET_PRIV_PTR(dev);
	struct nlattr *tb[BPF_MAX + 1];
	int ret_val, packet_filter_subcmd;

	ENTER();

	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		return ret_val;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (!hdd_ctx->bpf_enabled) {
		hdd_err("BPF offload is not supported/enabled");
		return -ENOTSUPP;
	}

	if (nla_parse(tb, BPF_MAX, data, data_len,
				wlan_hdd_bpf_offload_policy)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (!tb[BPF_SET_RESET]) {
		hdd_err("attr bpf set reset failed");
		return -EINVAL;
	}

	packet_filter_subcmd = nla_get_u32(tb[BPF_SET_RESET]);

	if (packet_filter_subcmd == QCA_WLAN_GET_PACKET_FILTER)
		return hdd_get_bpf_offload(hdd_ctx);
	else
		return hdd_set_reset_bpf_offload(hdd_ctx, tb,
						 pAdapter);
}

/**
 * wlan_hdd_cfg80211_bpf_offload() - SSR Wrapper to BPF Offload
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * Return: 0 on success; errno on failure
 */

static int wlan_hdd_cfg80211_bpf_offload(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_bpf_offload(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_set_pre_cac_status() - Set the pre cac status
 * @pre_cac_adapter: AP adapter used for pre cac
 * @status: Status (true or false)
 * @handle: Global handle
 *
 * Sets the status of pre cac i.e., whether the pre cac is active or not
 *
 * Return: Zero on success, non-zero on failure
 */
static int wlan_hdd_set_pre_cac_status(hdd_adapter_t *pre_cac_adapter,
				bool status, tHalHandle handle)
{
	QDF_STATUS ret;

	ret = wlan_sap_set_pre_cac_status(
		WLAN_HDD_GET_SAP_CTX_PTR(pre_cac_adapter), status, handle);
	if (QDF_IS_STATUS_ERROR(ret))
		return -EINVAL;

	return 0;
}

/**
 * wlan_hdd_set_chan_before_pre_cac() - Save the channel before pre cac
 * @ap_adapter: AP adapter
 * @chan_before_pre_cac: Channel
 *
 * Saves the channel which the AP was beaconing on before moving to the pre
 * cac channel. If radar is detected on the pre cac channel, this saved
 * channel will be used for AP operations.
 *
 * Return: Zero on success, non-zero on failure
 */
static int wlan_hdd_set_chan_before_pre_cac(hdd_adapter_t *ap_adapter,
			uint8_t chan_before_pre_cac)
{
	QDF_STATUS ret;

	ret = wlan_sap_set_chan_before_pre_cac(
		WLAN_HDD_GET_SAP_CTX_PTR(ap_adapter), chan_before_pre_cac);
	if (QDF_IS_STATUS_ERROR(ret))
		return -EINVAL;

	return 0;
}

/**
 * wlan_hdd_get_chanlist_without_nol() - This API removes the channels which
 * are in nol list from provided channel list
 * @adapter: AP adapter
 * @channel_count: channel count
 * @channel_list: channel list
 *
 * Return: None
 */
static void wlan_hdd_get_chanlist_without_nol(hdd_adapter_t *adapter,
				      uint32_t *channel_count,
				      uint8_t *channel_list)
{
	uint8_t i, j;
	uint32_t nol_len = 0;
	uint8_t nol[QDF_MAX_NUM_CHAN] = {0};
	uint8_t tmp_chan_list[QDF_MAX_NUM_CHAN] = {0};
	uint32_t chan_count;
	bool found;
	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);

	if (!hdd_ctx) {
		hdd_err("hdd ctx not found");
		*channel_count = 0;
		return;
	}

	if ((*channel_count == 0) || (*channel_count > QDF_MAX_NUM_CHAN)) {
		hdd_err("invalid channel count %d", *channel_count);
		return;
	}

	wlan_hdd_sap_get_nol(adapter, nol, &nol_len);
	if (nol_len == 0)
		return;

	qdf_mem_copy(tmp_chan_list, channel_list, *channel_count);
	chan_count = *channel_count;
	qdf_mem_zero(channel_list, chan_count);
	*channel_count = 0;

	for (i = 0 ; i < chan_count; i++) {
		if ((hdd_ctx->config->force_sap_acs_st_ch > tmp_chan_list[i]) ||
		    (hdd_ctx->config->force_sap_acs_end_ch < tmp_chan_list[i]))
			continue;
		found = false;
		for (j = 0; j < nol_len; j++) {
			if (tmp_chan_list[i] == nol[j]) {
				found = true;
				hdd_notice("skipped channel %d due to nol",
						nol[j]);
				break;
			}
		}
		if (!found) {
			channel_list[*channel_count] = tmp_chan_list[i];
			*channel_count = *channel_count + 1;
		}
	}
}

int wlan_hdd_sap_get_valid_channellist(hdd_adapter_t *adapter,
				       uint32_t *channel_count,
				       uint8_t *channel_list)
{
	tsap_Config_t *sap_config;

	sap_config = &adapter->sessionCtx.ap.sapConfig;

	qdf_mem_copy(channel_list, sap_config->acs_cfg.ch_list,
		     sap_config->acs_cfg.ch_list_count);
	*channel_count = sap_config->acs_cfg.ch_list_count;
	wlan_hdd_get_chanlist_without_nol(adapter, channel_count, channel_list);

	if (*channel_count == 0) {
		hdd_err("no valid channel found");
		return -EINVAL;
	}

	return 0;
}

/**
 * wlan_hdd_validate_and_get_pre_cac_ch() - Validate and get pre cac channel
 * @hdd_ctx: HDD context
 * @ap_adapter: AP adapter
 * @channel: Channel requested by userspace
 * @pre_cac_chan: Pointer to the pre CAC channel
 *
 * Validates the channel provided by userspace. If user provided channel 0,
 * a valid outdoor channel must be selected from the regulatory channel.
 *
 * Return: Zero on success and non zero value on error
 */
static int wlan_hdd_validate_and_get_pre_cac_ch(hdd_context_t *hdd_ctx,
						hdd_adapter_t *ap_adapter,
						uint8_t channel,
						uint8_t *pre_cac_chan)
{
	uint32_t i, j;
	QDF_STATUS status;
	int ret;
	uint8_t nol[QDF_MAX_NUM_CHAN];
	uint32_t nol_len = 0, weight_len = 0;
	bool found;
	uint32_t len = WNI_CFG_VALID_CHANNEL_LIST_LEN;
	uint8_t channel_list[QDF_MAX_NUM_CHAN] = {0};
	uint8_t pcl_weights[QDF_MAX_NUM_CHAN] = {0};

	if (0 == channel) {
		/* Channel is not obtained from PCL because PCL may not have
		 * the entire channel list. For example: if SAP is up on
		 * channel 6 and PCL is queried for the next SAP interface,
		 * if SCC is preferred, the PCL will contain only the channel
		 * 6. But, we are in need of a DFS channel. So, going with the
		 * first channel from the valid channel list.
		 */
		status = cds_get_valid_chans(channel_list, &len);
		if (QDF_IS_STATUS_ERROR(status)) {
			hdd_err("Failed to get channel list");
			return -EINVAL;
		}
		cds_update_with_safe_channel_list(channel_list, &len,
				pcl_weights, weight_len);
		ret = wlan_hdd_sap_get_nol(ap_adapter, nol, &nol_len);
		for (i = 0; i < len; i++) {
			found = false;
			for (j = 0; j < nol_len; j++) {
				if (channel_list[i] == nol[j]) {
					found = true;
					break;
				}
			}
			if (found)
				continue;
			if (CDS_IS_DFS_CH(channel_list[i])) {
				*pre_cac_chan = channel_list[i];
				break;
			}
		}
		if (*pre_cac_chan == 0) {
			hdd_err("unable to find outdoor channel");
			return -EINVAL;
		}
	} else {
		/* Only when driver selects a channel, check is done for
		 * unnsafe and NOL channels. When user provides a fixed channel
		 * the user is expected to take care of this.
		 */
		if (!sme_is_channel_valid(hdd_ctx->hHal, channel) ||
			!CDS_IS_DFS_CH(channel)) {
			hdd_err("Invalid channel for pre cac:%d", channel);
			return -EINVAL;
		}

		*pre_cac_chan = channel;
	}
	hdd_info("selected pre cac channel:%d", *pre_cac_chan);
	return 0;
}

/**
 * wlan_hdd_request_pre_cac() - Start pre CAC in the driver
 * @channel: Channel option provided by userspace
 *
 * Sets the driver to the required hardware mode and start an adapater for
 * pre CAC which will mimic an AP.
 *
 * Return: Zero on success, non-zero value on error
 */
int wlan_hdd_request_pre_cac(uint8_t channel)
{
	uint8_t pre_cac_chan = 0, *mac_addr;
	hdd_context_t *hdd_ctx;
	int ret;
	hdd_adapter_t *ap_adapter, *pre_cac_adapter;
	hdd_ap_ctx_t *hdd_ap_ctx;
	QDF_STATUS status;
	struct wiphy *wiphy;
	struct net_device *dev;
	struct cfg80211_chan_def chandef;
	enum nl80211_channel_type channel_type;
	uint32_t freq;
	struct ieee80211_channel *chan;
	tHalHandle handle;
	bool val;

	hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
	if (0 != wlan_hdd_validate_context(hdd_ctx))
		return -EINVAL;

	if (cds_get_connection_count() > 1) {
		hdd_err("pre cac not allowed in concurrency");
		return -EINVAL;
	}

	ap_adapter = hdd_get_adapter(hdd_ctx, QDF_SAP_MODE);
	if (!ap_adapter) {
		hdd_err("unable to get SAP adapter");
		return -EINVAL;
	}

	handle = WLAN_HDD_GET_HAL_CTX(ap_adapter);
	if (!handle) {
		hdd_err("Invalid handle");
		return -EINVAL;
	}

	val = wlan_sap_is_pre_cac_active(handle);
	if (val) {
		hdd_err("pre cac is already in progress");
		return -EINVAL;
	}

	hdd_ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(ap_adapter);
	if (!hdd_ap_ctx) {
		hdd_err("SAP context is NULL");
		return -EINVAL;
	}

	if (CDS_IS_DFS_CH(hdd_ap_ctx->operatingChannel)) {
		hdd_err("SAP is already on DFS channel:%d",
			hdd_ap_ctx->operatingChannel);
		return -EINVAL;
	}

	if (!CDS_IS_CHANNEL_24GHZ(hdd_ap_ctx->operatingChannel)) {
		hdd_err("pre CAC alllowed only when SAP is in 2.4GHz:%d",
			hdd_ap_ctx->operatingChannel);
		return -EINVAL;
	}

	mac_addr = wlan_hdd_get_intf_addr(hdd_ctx);
	if (!mac_addr) {
		hdd_err("can't add virtual intf: Not getting valid mac addr");
		return -EINVAL;
	}

	hdd_info("channel:%d", channel);

	ret = wlan_hdd_validate_and_get_pre_cac_ch(hdd_ctx, ap_adapter, channel,
							&pre_cac_chan);
	if (ret != 0) {
		hdd_err("can't validate pre-cac channel");
		goto release_intf_addr_and_return_failure;
	}

	hdd_debug("starting pre cac SAP  adapter");

	/* Starting a SAP adapter:
	 * Instead of opening an adapter, we could just do a SME open session
	 * for AP type. But, start BSS would still need an adapter.
	 * So, this option is not taken.
	 *
	 * hdd open adapter is going to register this precac interface with
	 * user space. This interface though exposed to user space will be in
	 * DOWN state. Consideration was done to avoid this registration to the
	 * user space. But, as part of SAP operations multiple events are sent
	 * to user space. Some of these events received from unregistered
	 * interface was causing crashes. So, retaining the registration.
	 *
	 * So, this interface would remain registered and will remain in DOWN
	 * state for the CAC duration. We will add notes in the feature
	 * announcement to not use this temporary interface for any activity
	 * from user space.
	 */
	pre_cac_adapter = hdd_open_adapter(hdd_ctx, QDF_SAP_MODE, "precac%d",
					   mac_addr, NET_NAME_UNKNOWN, true);
	if (!pre_cac_adapter) {
		hdd_err("error opening the pre cac adapter");
		goto release_intf_addr_and_return_failure;
	}

	/*
	 * This interface is internally created by the driver. So, no interface
	 * up comes for this interface from user space and hence starting
	 * the adapter internally.
	 */
	if (hdd_start_adapter(pre_cac_adapter)) {
		hdd_err("error starting the pre cac adapter");
		goto close_pre_cac_adapter;
	}

	hdd_debug("preparing for start ap/bss on the pre cac adapter");

	wiphy = hdd_ctx->wiphy;
	dev = pre_cac_adapter->dev;

	/* Since this is only a dummy interface lets us use the IEs from the
	 * other active SAP interface. In regular scenarios, these IEs would
	 * come from the user space entity
	 */
	pre_cac_adapter->sessionCtx.ap.beacon = qdf_mem_malloc(
			sizeof(*ap_adapter->sessionCtx.ap.beacon));
	if (!pre_cac_adapter->sessionCtx.ap.beacon) {
		hdd_err("failed to alloc mem for beacon");
		goto stop_close_pre_cac_adapter;
	}
	qdf_mem_copy(pre_cac_adapter->sessionCtx.ap.beacon,
			ap_adapter->sessionCtx.ap.beacon,
			sizeof(*pre_cac_adapter->sessionCtx.ap.beacon));
	pre_cac_adapter->sessionCtx.ap.sapConfig.ch_width_orig =
			ap_adapter->sessionCtx.ap.sapConfig.ch_width_orig;
	pre_cac_adapter->sessionCtx.ap.sapConfig.authType =
			ap_adapter->sessionCtx.ap.sapConfig.authType;

	/* Premise is that on moving from 2.4GHz to 5GHz, the SAP will continue
	 * to operate on the same bandwidth as that of the 2.4GHz operations.
	 * Only bandwidths 20MHz/40MHz are possible on 2.4GHz band.
	 */
	switch (ap_adapter->sessionCtx.ap.sapConfig.ch_width_orig) {
	case CH_WIDTH_20MHZ:
		channel_type = NL80211_CHAN_HT20;
		break;
	case CH_WIDTH_40MHZ:
		if (ap_adapter->sessionCtx.ap.sapConfig.sec_ch >
				ap_adapter->sessionCtx.ap.sapConfig.channel)
			channel_type = NL80211_CHAN_HT40PLUS;
		else
			channel_type = NL80211_CHAN_HT40MINUS;
		break;
	default:
		channel_type = NL80211_CHAN_NO_HT;
		break;
	}

	freq = cds_chan_to_freq(pre_cac_chan);
	chan = __ieee80211_get_channel(wiphy, freq);
	if (!chan) {
		hdd_err("channel converion failed");
		goto stop_close_pre_cac_adapter;
	}

	cfg80211_chandef_create(&chandef, chan, channel_type);

	hdd_debug("orig width:%d channel_type:%d freq:%d",
		ap_adapter->sessionCtx.ap.sapConfig.ch_width_orig,
		channel_type, freq);
	/*
	 * Doing update after opening and starting pre-cac adapter will make
	 * sure that driver won't do hardware mode change if there are any
	 * initial hick-ups or issues in pre-cac adapter's configuration.
	 * Since current SAP is in 2.4GHz and pre CAC channel is in 5GHz, this
	 * connection update should result in DBS mode
	 */
	status = cds_update_and_wait_for_connection_update(
						ap_adapter->sessionId,
						pre_cac_chan,
						SIR_UPDATE_REASON_PRE_CAC);
	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err("error in moving to DBS mode");
		goto stop_close_pre_cac_adapter;
	}


	ret = wlan_hdd_set_channel(wiphy, dev, &chandef, channel_type);
	if (0 != ret) {
		hdd_err("failed to set channel");
		goto stop_close_pre_cac_adapter;
	}

	status = wlan_hdd_cfg80211_start_bss(pre_cac_adapter, NULL,
			PRE_CAC_SSID, qdf_str_len(PRE_CAC_SSID),
			eHIDDEN_SSID_NOT_IN_USE, false, false);
	if (QDF_IS_STATUS_ERROR(status)) {
		hdd_err("start bss failed");
		goto stop_close_pre_cac_adapter;
	}

	/*
	 * The pre cac status is set here. But, it would not be reset explicitly
	 * anywhere, since after the pre cac success/failure, the pre cac
	 * adapter itself would be removed.
	 */
	ret = wlan_hdd_set_pre_cac_status(pre_cac_adapter, true, handle);
	if (0 != ret) {
		hdd_err("failed to set pre cac status");
		goto stop_close_pre_cac_adapter;
	}

	ret = wlan_hdd_set_chan_before_pre_cac(ap_adapter,
				hdd_ap_ctx->operatingChannel);
	if (0 != ret) {
		hdd_err("failed to set channel before pre cac");
		goto stop_close_pre_cac_adapter;
	}

	ap_adapter->pre_cac_chan = pre_cac_chan;

	return 0;

stop_close_pre_cac_adapter:
	hdd_stop_adapter(hdd_ctx, pre_cac_adapter, true);
	qdf_mem_free(pre_cac_adapter->sessionCtx.ap.beacon);
	pre_cac_adapter->sessionCtx.ap.beacon = NULL;
close_pre_cac_adapter:
	hdd_close_adapter(hdd_ctx, pre_cac_adapter, false);
release_intf_addr_and_return_failure:
	/*
	 * Release the interface address as the adapter
	 * failed to start, if you don't release then next
	 * adapter which is trying to come wouldn't get valid
	 * mac address. Remember we have limited pool of mac addresses
	 */
	wlan_hdd_release_intf_addr(hdd_ctx, mac_addr);
	return -EINVAL;
}

static const struct nla_policy
wlan_hdd_sap_config_policy[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL] = {.type = NLA_U8 },
};

static const struct nla_policy
wlan_hdd_set_acs_dfs_config_policy[QCA_WLAN_VENDOR_ATTR_ACS_DFS_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_ACS_DFS_MODE] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_ACS_CHANNEL_HINT] = {.type = NLA_U8 },
};

/**
 * __wlan_hdd_cfg80211_acs_dfs_mode() - set ACS DFS mode and channel
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * This function parses the incoming NL vendor command data attributes and
 * updates the SAP context about channel_hint and DFS mode.
 * If channel_hint is set, SAP will choose that channel
 * as operating channel.
 *
 * If DFS mode is enabled, driver will include DFS channels
 * in ACS else driver will skip DFS channels.
 *
 * Return: 0 on success, negative errno on failure
 */
static int
__wlan_hdd_cfg80211_acs_dfs_mode(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_ACS_DFS_MAX + 1];
	int ret;
	struct acs_dfs_policy *acs_policy;
	int mode = DFS_MODE_NONE;
	int channel_hint = 0;

	ENTER_DEV(wdev->netdev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (0 != ret)
		return ret;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_ACS_DFS_MAX,
				data, data_len,
				wlan_hdd_set_acs_dfs_config_policy)) {
		hdd_err("invalid attr");
		return -EINVAL;
	}

	acs_policy = &hdd_ctx->acs_policy;
	/*
	 * SCM sends this attribute to restrict SAP from choosing
	 * DFS channels from ACS.
	 */
	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_DFS_MODE])
		mode = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_ACS_DFS_MODE]);

	if (!IS_DFS_MODE_VALID(mode)) {
		hdd_err("attr acs dfs mode is not valid");
		return -EINVAL;
	}
	acs_policy->acs_dfs_mode = mode;

	/*
	 * SCM sends this attribute to provide an active channel,
	 * to skip redundant ACS between drivers, and save driver start up time
	 */
	if (tb[QCA_WLAN_VENDOR_ATTR_ACS_CHANNEL_HINT])
		channel_hint = nla_get_u8(
				tb[QCA_WLAN_VENDOR_ATTR_ACS_CHANNEL_HINT]);

	if (!IS_CHANNEL_VALID(channel_hint)) {
		hdd_err("acs channel is not valid");
		return -EINVAL;
	}
	acs_policy->acs_channel = channel_hint;

	return 0;
}

/**
 * wlan_hdd_cfg80211_acs_dfs_mode() - Wrapper to set ACS DFS mode
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * This function parses the incoming NL vendor command data attributes and
 * updates the SAP context about channel_hint and DFS mode.
 *
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_acs_dfs_mode(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_acs_dfs_mode(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_get_sta_roam_dfs_mode() - get sta roam dfs mode policy
 * @mode : cfg80211 dfs mode
 *
 * Return: return csr sta roam dfs mode else return NONE
 */
static enum sta_roam_policy_dfs_mode wlan_hdd_get_sta_roam_dfs_mode(
		enum dfs_mode mode)
{
	switch (mode) {
	case DFS_MODE_ENABLE:
		return CSR_STA_ROAM_POLICY_DFS_ENABLED;
		break;
	case DFS_MODE_DISABLE:
		return CSR_STA_ROAM_POLICY_DFS_DISABLED;
		break;
	case DFS_MODE_DEPRIORITIZE:
		return CSR_STA_ROAM_POLICY_DFS_DEPRIORITIZE;
		break;
	default:
		hdd_err("STA Roam policy dfs mode is NONE");
		return  CSR_STA_ROAM_POLICY_NONE;
	}
}

/*
 * hdd_get_sap_operating_band:  Get current operating channel
 * for sap.
 * @hdd_ctx: hdd context
 *
 * Return : Corresponding band for SAP operating channel
 */
uint8_t hdd_get_sap_operating_band(hdd_context_t *hdd_ctx)
{
	hdd_adapter_list_node_t *adapter_node = NULL, *next = NULL;
	QDF_STATUS status;
	hdd_adapter_t *adapter;
	uint8_t  operating_channel = 0;
	uint8_t sap_operating_band = 0;
	status = hdd_get_front_adapter(hdd_ctx, &adapter_node);
	while (NULL != adapter_node && QDF_STATUS_SUCCESS == status) {
		adapter = adapter_node->pAdapter;

		if (!(adapter && (QDF_SAP_MODE == adapter->device_mode))) {
			status = hdd_get_next_adapter(hdd_ctx, adapter_node,
					&next);
			adapter_node = next;
			continue;
		}
		operating_channel = adapter->sessionCtx.ap.operatingChannel;
		if (IS_24G_CH(operating_channel))
			sap_operating_band = eCSR_BAND_24;
		else if (IS_5G_CH(operating_channel))
			sap_operating_band = eCSR_BAND_5G;
		else
			sap_operating_band = eCSR_BAND_ALL;
		status = hdd_get_next_adapter(hdd_ctx, adapter_node,
				&next);
		adapter_node = next;
	}
	return sap_operating_band;
}

static const struct nla_policy
wlan_hdd_set_sta_roam_config_policy[
QCA_WLAN_VENDOR_ATTR_STA_CONNECT_ROAM_POLICY_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_STA_DFS_MODE] = {.type = NLA_U8 },
	[QCA_WLAN_VENDOR_ATTR_STA_SKIP_UNSAFE_CHANNEL] = {.type = NLA_U8 },
};

/**
 * __wlan_hdd_cfg80211_sta_roam_policy() - Set params to restrict scan channels
 * for station connection or roaming.
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * __wlan_hdd_cfg80211_sta_roam_policy will decide if DFS channels or unsafe
 * channels needs to be skipped in scanning or not.
 * If dfs_mode is disabled, driver will not scan DFS channels.
 * If skip_unsafe_channels is set, driver will skip unsafe channels
 * in Scanning.
 *
 * Return: 0 on success, negative errno on failure
 */
static int
__wlan_hdd_cfg80211_sta_roam_policy(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[
		QCA_WLAN_VENDOR_ATTR_STA_CONNECT_ROAM_POLICY_MAX + 1];
	int ret;
	enum sta_roam_policy_dfs_mode sta_roam_dfs_mode;
	enum dfs_mode mode = DFS_MODE_NONE;
	bool skip_unsafe_channels = false;
	QDF_STATUS status;
	uint8_t sap_operating_band;

	ENTER_DEV(dev);

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (0 != ret)
		return ret;
	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_STA_CONNECT_ROAM_POLICY_MAX,
				data, data_len,
				wlan_hdd_set_sta_roam_config_policy)) {
		hdd_err("invalid attr");
		return -EINVAL;
	}
	if (tb[QCA_WLAN_VENDOR_ATTR_STA_DFS_MODE])
		mode = nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_STA_DFS_MODE]);
	if (!IS_DFS_MODE_VALID(mode)) {
		hdd_err("attr sta roam dfs mode policy is not valid");
		return -EINVAL;
	}

	sta_roam_dfs_mode = wlan_hdd_get_sta_roam_dfs_mode(mode);

	if (tb[QCA_WLAN_VENDOR_ATTR_STA_SKIP_UNSAFE_CHANNEL])
		skip_unsafe_channels = nla_get_u8(
			tb[QCA_WLAN_VENDOR_ATTR_STA_SKIP_UNSAFE_CHANNEL]);
	sap_operating_band = hdd_get_sap_operating_band(hdd_ctx);
	status = sme_update_sta_roam_policy(hdd_ctx->hHal, sta_roam_dfs_mode,
			skip_unsafe_channels, adapter->sessionId,
			sap_operating_band);

	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("sme_update_sta_roam_policy (err=%d)", status);
		return -EINVAL;
	}
	return 0;
}

/**
 * wlan_hdd_cfg80211_sta_roam_policy() - Wrapper to restrict scan channels,
 * connection and roaming for station.
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * __wlan_hdd_cfg80211_sta_roam_policy will decide if DFS channels or unsafe
 * channels needs to be skipped in scanning or not.
 * If dfs_mode is disabled, driver will not scan DFS channels.
 * If skip_unsafe_channels is set, driver will skip unsafe channels
 * in Scanning.
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_sta_roam_policy(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_sta_roam_policy(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#ifdef FEATURE_WLAN_CH_AVOID
/**
 * __wlan_hdd_cfg80211_avoid_freq() - ask driver to restart SAP if SAP
 * is on unsafe channel.
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * wlan_hdd_cfg80211_avoid_freq do restart the sap if sap is already
 * on any of unsafe channels.
 * If sap is on any of unsafe channel, hdd_unsafe_channel_restart_sap
 * will send WLAN_SVC_LTE_COEX_IND indication to userspace to restart.
 *
 * Return: 0 on success; errno on failure
 */
static int
__wlan_hdd_cfg80211_avoid_freq(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int ret;
	uint16_t unsafe_channel_count;
	int unsafe_channel_index;
	qdf_device_t qdf_ctx = cds_get_context(QDF_MODULE_ID_QDF_DEVICE);

	ENTER_DEV(wdev->netdev);

	if (!qdf_ctx) {
		cds_err("qdf_ctx is NULL");
		return -EINVAL;
	}

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (0 != ret)
		return ret;
	pld_get_wlan_unsafe_channel(qdf_ctx->dev, hdd_ctx->unsafe_channel_list,
			&(hdd_ctx->unsafe_channel_count),
			sizeof(hdd_ctx->unsafe_channel_list));

	unsafe_channel_count = QDF_MIN((uint16_t)hdd_ctx->unsafe_channel_count,
			(uint16_t)NUM_CHANNELS);
	for (unsafe_channel_index = 0;
			unsafe_channel_index < unsafe_channel_count;
			unsafe_channel_index++) {
		hdd_info("Channel %d is not safe",
			hdd_ctx->unsafe_channel_list[unsafe_channel_index]);
	}
	hdd_unsafe_channel_restart_sap(hdd_ctx);
	return 0;
}

/**
 * wlan_hdd_cfg80211_avoid_freq() - ask driver to restart SAP if SAP
 * is on unsafe channel.
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * wlan_hdd_cfg80211_avoid_freq do restart the sap if sap is already
 * on any of unsafe channels.
 * If sap is on any of unsafe channel, hdd_unsafe_channel_restart_sap
 * will send WLAN_SVC_LTE_COEX_IND indication to userspace to restart.
 *
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_avoid_freq(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_avoid_freq(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#endif
/**
 * __wlan_hdd_cfg80211_sap_configuration_set() - ask driver to restart SAP if
 * SAP is on unsafe channel.
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * __wlan_hdd_cfg80211_sap_configuration_set function set SAP params to
 * driver.
 * QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHAN will set sap config channel and
 * will initiate restart of sap.
 *
 * Return: 0 on success; errno on failure
 */
static int
__wlan_hdd_cfg80211_sap_configuration_set(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	struct net_device *ndev = wdev->netdev;
	hdd_adapter_t *hostapd_adapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX + 1];
	uint8_t config_channel = 0;
	hdd_ap_ctx_t *ap_ctx;
	int ret;
	QDF_STATUS status;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (0 != ret)
		return -EINVAL;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_MAX,
				data, data_len,
				wlan_hdd_sap_config_policy)) {
		hdd_err("invalid attr");
		return -EINVAL;
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL]) {
		if (!test_bit(SOFTAP_BSS_STARTED,
					&hostapd_adapter->event_flags)) {
			hdd_err("SAP is not started yet. Restart sap will be invalid");
			return -EINVAL;
		}

		config_channel =
			nla_get_u8(tb[QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHANNEL]);

		if (!((IS_24G_CH(config_channel)) ||
			(IS_5G_CH(config_channel)))) {
			hdd_err("Channel  %d is not valid to restart SAP",
					config_channel);
			return -ENOTSUPP;
		}

		ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(hostapd_adapter);
		ap_ctx->sapConfig.channel = config_channel;
		ap_ctx->sapConfig.ch_params.ch_width =
					ap_ctx->sapConfig.ch_width_orig;

		cds_set_channel_params(ap_ctx->sapConfig.channel,
				ap_ctx->sapConfig.sec_ch,
				&ap_ctx->sapConfig.ch_params);

		cds_restart_sap(hostapd_adapter);
	}

	if (tb[QCA_WLAN_VENDOR_ATTR_SAP_MANDATORY_FREQUENCY_LIST]) {
		uint32_t freq_len, i;
		uint32_t *freq;
		uint8_t chans[QDF_MAX_NUM_CHAN];

		hdd_debug("setting mandatory freq/chan list");

		freq_len = nla_len(
		    tb[QCA_WLAN_VENDOR_ATTR_SAP_MANDATORY_FREQUENCY_LIST])/
		    sizeof(uint32_t);

		if (freq_len > QDF_MAX_NUM_CHAN) {
			hdd_err("insufficient space to hold channels");
			return -ENOMEM;
		}

		freq = nla_data(
		    tb[QCA_WLAN_VENDOR_ATTR_SAP_MANDATORY_FREQUENCY_LIST]);

		hdd_debug("freq_len=%d", freq_len);

		for (i = 0; i < freq_len; i++) {
			chans[i] = ieee80211_frequency_to_channel(freq[i]);
			hdd_debug("freq[%d]=%d", i, freq[i]);
		}

		status = cds_set_sap_mandatory_channels(chans, freq_len);
		if (QDF_IS_STATUS_ERROR(status))
			return -EINVAL;
	}

	return 0;
}

/**
 * wlan_hdd_cfg80211_sap_configuration_set() - sap configuration vendor command
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * __wlan_hdd_cfg80211_sap_configuration_set function set SAP params to
 * driver.
 * QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_CHAN will set sap config channel and
 * will initiate restart of sap.
 *
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_sap_configuration_set(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_sap_configuration_set(wiphy,
			wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#undef BPF_INVALID
#undef BPF_SET_RESET
#undef BPF_VERSION
#undef BPF_ID
#undef BPF_PACKET_SIZE
#undef BPF_CURRENT_OFFSET
#undef BPF_PROGRAM
#undef BPF_MAX

/**
 * define short names for the global vendor params
 * used by wlan_hdd_cfg80211_wakelock_stats_rsp_callback()
 */
#define PARAM_TOTAL_CMD_EVENT_WAKE \
		QCA_WLAN_VENDOR_ATTR_TOTAL_CMD_EVENT_WAKE
#define PARAM_CMD_EVENT_WAKE_CNT_PTR \
		QCA_WLAN_VENDOR_ATTR_CMD_EVENT_WAKE_CNT_PTR
#define PARAM_CMD_EVENT_WAKE_CNT_SZ \
		QCA_WLAN_VENDOR_ATTR_CMD_EVENT_WAKE_CNT_SZ
#define PARAM_TOTAL_DRIVER_FW_LOCAL_WAKE \
		QCA_WLAN_VENDOR_ATTR_TOTAL_DRIVER_FW_LOCAL_WAKE
#define PARAM_DRIVER_FW_LOCAL_WAKE_CNT_PTR \
		QCA_WLAN_VENDOR_ATTR_DRIVER_FW_LOCAL_WAKE_CNT_PTR
#define PARAM_DRIVER_FW_LOCAL_WAKE_CNT_SZ \
		QCA_WLAN_VENDOR_ATTR_DRIVER_FW_LOCAL_WAKE_CNT_SZ
#define PARAM_TOTAL_RX_DATA_WAKE \
		QCA_WLAN_VENDOR_ATTR_TOTAL_RX_DATA_WAKE
#define PARAM_RX_UNICAST_CNT \
		QCA_WLAN_VENDOR_ATTR_RX_UNICAST_CNT
#define PARAM_RX_MULTICAST_CNT \
		QCA_WLAN_VENDOR_ATTR_RX_MULTICAST_CNT
#define PARAM_RX_BROADCAST_CNT \
		QCA_WLAN_VENDOR_ATTR_RX_BROADCAST_CNT
#define PARAM_ICMP_PKT \
		QCA_WLAN_VENDOR_ATTR_ICMP_PKT
#define PARAM_ICMP6_PKT \
		QCA_WLAN_VENDOR_ATTR_ICMP6_PKT
#define PARAM_ICMP6_RA \
		QCA_WLAN_VENDOR_ATTR_ICMP6_RA
#define PARAM_ICMP6_NA \
		QCA_WLAN_VENDOR_ATTR_ICMP6_NA
#define PARAM_ICMP6_NS \
		QCA_WLAN_VENDOR_ATTR_ICMP6_NS
#define PARAM_ICMP4_RX_MULTICAST_CNT \
		QCA_WLAN_VENDOR_ATTR_ICMP4_RX_MULTICAST_CNT
#define PARAM_ICMP6_RX_MULTICAST_CNT \
		QCA_WLAN_VENDOR_ATTR_ICMP6_RX_MULTICAST_CNT
#define PARAM_OTHER_RX_MULTICAST_CNT \
		QCA_WLAN_VENDOR_ATTR_OTHER_RX_MULTICAST_CNT
#define PARAM_RSSI_BREACH_CNT \
		QCA_WLAN_VENDOR_ATTR_RSSI_BREACH_CNT
#define PARAM_LOW_RSSI_CNT \
		QCA_WLAN_VENDOR_ATTR_LOW_RSSI_CNT
#define PARAM_GSCAN_CNT \
		QCA_WLAN_VENDOR_ATTR_GSCAN_CNT
#define PARAM_PNO_COMPLETE_CNT \
		QCA_WLAN_VENDOR_ATTR_PNO_COMPLETE_CNT
#define PARAM_PNO_MATCH_CNT \
		QCA_WLAN_VENDOR_ATTR_PNO_MATCH_CNT



/**
 * hdd_send_wakelock_stats() - API to send wakelock stats
 * @ctx: context to be passed to callback
 * @data: data passed to callback
 *
 * This function is used to send wake lock stats to HAL layer
 *
 * Return: 0 on success, error number otherwise.
 */
static uint32_t hdd_send_wakelock_stats(hdd_context_t *hdd_ctx,
					const struct sir_wake_lock_stats *data)
{
	struct sk_buff *skb;
	uint32_t nl_buf_len;
	uint32_t total_rx_data_wake, rx_multicast_cnt;
	uint32_t ipv6_rx_multicast_addr_cnt;
	uint32_t icmpv6_cnt;

	ENTER();

	nl_buf_len = NLMSG_HDRLEN;
	nl_buf_len +=
		QCA_WLAN_VENDOR_GET_WAKE_STATS_MAX *
				(NLMSG_HDRLEN + sizeof(uint32_t));

	skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len);

	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	hdd_info("wow_ucast_wake_up_count %d",
			data->wow_ucast_wake_up_count);
	hdd_info("wow_bcast_wake_up_count %d",
			data->wow_bcast_wake_up_count);
	hdd_info("wow_ipv4_mcast_wake_up_count %d",
			data->wow_ipv4_mcast_wake_up_count);
	hdd_info("wow_ipv6_mcast_wake_up_count %d",
			data->wow_ipv6_mcast_wake_up_count);
	hdd_info("wow_ipv6_mcast_ra_stats %d",
			data->wow_ipv6_mcast_ra_stats);
	hdd_info("wow_ipv6_mcast_ns_stats %d",
			data->wow_ipv6_mcast_ns_stats);
	hdd_info("wow_ipv6_mcast_na_stats %d",
			data->wow_ipv6_mcast_na_stats);
	hdd_info("wow_icmpv4_count %d", data->wow_icmpv4_count);
	hdd_info("wow_icmpv6_count %d",
			data->wow_icmpv6_count);
	hdd_info("wow_rssi_breach_wake_up_count %d",
			data->wow_rssi_breach_wake_up_count);
	hdd_info("wow_low_rssi_wake_up_count %d",
			data->wow_low_rssi_wake_up_count);
	hdd_info("wow_gscan_wake_up_count %d",
			data->wow_gscan_wake_up_count);
	hdd_info("wow_pno_complete_wake_up_count %d",
			data->wow_pno_complete_wake_up_count);
	hdd_info("wow_pno_match_wake_up_count %d",
			data->wow_pno_match_wake_up_count);

	ipv6_rx_multicast_addr_cnt =
		data->wow_ipv6_mcast_wake_up_count;

	icmpv6_cnt =
		data->wow_icmpv6_count;

	rx_multicast_cnt =
		data->wow_ipv4_mcast_wake_up_count +
		ipv6_rx_multicast_addr_cnt;

	total_rx_data_wake =
		data->wow_ucast_wake_up_count +
		data->wow_bcast_wake_up_count +
		rx_multicast_cnt;

	if (nla_put_u32(skb, PARAM_TOTAL_CMD_EVENT_WAKE, 0) ||
	    nla_put_u32(skb, PARAM_CMD_EVENT_WAKE_CNT_PTR, 0) ||
	    nla_put_u32(skb, PARAM_CMD_EVENT_WAKE_CNT_SZ, 0) ||
	    nla_put_u32(skb, PARAM_TOTAL_DRIVER_FW_LOCAL_WAKE, 0) ||
	    nla_put_u32(skb, PARAM_DRIVER_FW_LOCAL_WAKE_CNT_PTR, 0) ||
	    nla_put_u32(skb, PARAM_DRIVER_FW_LOCAL_WAKE_CNT_SZ, 0) ||
	    nla_put_u32(skb, PARAM_TOTAL_RX_DATA_WAKE,
				total_rx_data_wake) ||
	    nla_put_u32(skb, PARAM_RX_UNICAST_CNT,
				data->wow_ucast_wake_up_count) ||
	    nla_put_u32(skb, PARAM_RX_MULTICAST_CNT,
				rx_multicast_cnt) ||
	    nla_put_u32(skb, PARAM_RX_BROADCAST_CNT,
				data->wow_bcast_wake_up_count) ||
	    nla_put_u32(skb, PARAM_ICMP_PKT,
				data->wow_icmpv4_count) ||
	    nla_put_u32(skb, PARAM_ICMP6_PKT,
				icmpv6_cnt) ||
	    nla_put_u32(skb, PARAM_ICMP6_RA,
				data->wow_ipv6_mcast_ra_stats) ||
	    nla_put_u32(skb, PARAM_ICMP6_NA,
				data->wow_ipv6_mcast_na_stats) ||
	    nla_put_u32(skb, PARAM_ICMP6_NS,
				data->wow_ipv6_mcast_ns_stats) ||
	    nla_put_u32(skb, PARAM_ICMP4_RX_MULTICAST_CNT,
				data->wow_ipv4_mcast_wake_up_count) ||
	    nla_put_u32(skb, PARAM_ICMP6_RX_MULTICAST_CNT,
				ipv6_rx_multicast_addr_cnt) ||
	    nla_put_u32(skb, PARAM_OTHER_RX_MULTICAST_CNT, 0) ||
	    nla_put_u32(skb, PARAM_RSSI_BREACH_CNT,
				data->wow_rssi_breach_wake_up_count) ||
	    nla_put_u32(skb, PARAM_LOW_RSSI_CNT,
				data->wow_low_rssi_wake_up_count) ||
	    nla_put_u32(skb, PARAM_GSCAN_CNT,
				data->wow_gscan_wake_up_count) ||
	    nla_put_u32(skb, PARAM_PNO_COMPLETE_CNT,
				data->wow_pno_complete_wake_up_count) ||
	    nla_put_u32(skb, PARAM_PNO_MATCH_CNT,
				data->wow_pno_match_wake_up_count)) {
		hdd_err("nla put fail");
		goto nla_put_failure;
	}

	cfg80211_vendor_cmd_reply(skb);

	EXIT();
	return 0;

nla_put_failure:
	kfree_skb(skb);
	return -EINVAL;
}

/**
 * __wlan_hdd_cfg80211_get_wakelock_stats() - gets wake lock stats
 * @wiphy: wiphy pointer
 * @wdev: pointer to struct wireless_dev
 * @data: pointer to incoming NL vendor data
 * @data_len: length of @data
 *
 * This function parses the incoming NL vendor command data attributes and
 * invokes the SME Api and blocks on a completion variable.
 * WMA copies required data and invokes callback
 * wlan_hdd_cfg80211_wakelock_stats_rsp_callback to send wake lock stats.
 *
 * Return: 0 on success; error number otherwise.
 */
static int __wlan_hdd_cfg80211_get_wakelock_stats(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data,
					int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int status, ret;
	struct sir_wake_lock_stats wake_lock_stats;
	QDF_STATUS qdf_status;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	status = wlan_hdd_validate_context(hdd_ctx);
	if (0 != status)
		return -EINVAL;

	qdf_status = wma_get_wakelock_stats(&wake_lock_stats);
	if (qdf_status != QDF_STATUS_SUCCESS) {
		hdd_err("failed to get wakelock stats(err=%d)", qdf_status);
		return -EINVAL;
	}

	ret = hdd_send_wakelock_stats(hdd_ctx,
					&wake_lock_stats);
	if (ret)
		hdd_err("Failed to post wake lock stats");

	EXIT();
	return ret;
}

/**
 * wlan_hdd_cfg80211_get_wakelock_stats() - gets wake lock stats
 * @wiphy: wiphy pointer
 * @wdev: pointer to struct wireless_dev
 * @data: pointer to incoming NL vendor data
 * @data_len: length of @data
 *
 * This function parses the incoming NL vendor command data attributes and
 * invokes the SME Api and blocks on a completion variable.
 * WMA copies required data and invokes callback
 * wlan_hdd_cfg80211_wakelock_stats_rsp_callback to send wake lock stats.
 *
 * Return: 0 on success; error number otherwise.
 */
static int wlan_hdd_cfg80211_get_wakelock_stats(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_wakelock_stats(wiphy, wdev, data,
								data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_get_bus_size() - Get WMI Bus size
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * This function reads wmi max bus size and fill in the skb with
 * NL attributes and send up the NL event.
 * Return: 0 on success; errno on failure
 */
static int
__wlan_hdd_cfg80211_get_bus_size(struct wiphy *wiphy,
				 struct wireless_dev *wdev,
				 const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	int ret_val;
	struct sk_buff *skb;
	uint32_t nl_buf_len;

	ENTER();

	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		return ret_val;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	hdd_info("WMI Max Bus size: %d", hdd_ctx->wmi_max_len);

	nl_buf_len = NLMSG_HDRLEN;
	nl_buf_len +=  (sizeof(hdd_ctx->wmi_max_len) + NLA_HDRLEN);

	skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len);
	if (!skb) {
		hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
		return -ENOMEM;
	}

	if (nla_put_u16(skb, QCA_WLAN_VENDOR_ATTR_DRV_INFO_BUS_SIZE,
			hdd_ctx->wmi_max_len)) {
		hdd_err("nla put failure");
		goto nla_put_failure;
	}

	cfg80211_vendor_cmd_reply(skb);

	EXIT();

	return 0;

nla_put_failure:
	kfree_skb(skb);
	return -EINVAL;
}

/**
 * wlan_hdd_cfg80211_get_bus_size() - SSR Wrapper to Get Bus size
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_get_bus_size(struct wiphy *wiphy,
					  struct wireless_dev *wdev,
					  const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_bus_size(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 *__wlan_hdd_cfg80211_setband() - set band
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_setband(struct wiphy *wiphy,
				       struct wireless_dev *wdev,
				       const void *data, int data_len)
{
	struct net_device *dev = wdev->netdev;
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
	int ret;
	static const struct nla_policy policy[QCA_WLAN_VENDOR_ATTR_MAX + 1]
		= {[QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE] = { .type = NLA_U32 } };

	ENTER();

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len, policy)) {
		hdd_err(FL("Invalid ATTR"));
		return -EINVAL;
	}

	if (!tb[QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE]) {
		hdd_err(FL("attr SETBAND_VALUE failed"));
		return -EINVAL;
	}

	ret = hdd_set_band(dev,
			nla_get_u32(tb[QCA_WLAN_VENDOR_ATTR_SETBAND_VALUE]));

	EXIT();
	return ret;
}

/**
 *wlan_hdd_validate_acs_channel() - validate channel provided by ACS
 * @adapter: hdd adapter
 * @channel: channel number
 *
 * return: QDF status based on success or failure
 */
static QDF_STATUS wlan_hdd_validate_acs_channel(hdd_adapter_t *adapter,
						int channel, int chan_bw)
{
	if (QDF_STATUS_SUCCESS !=
	    wlan_hdd_validate_operation_channel(adapter, channel))
		return QDF_STATUS_E_FAILURE;
	if ((wlansap_is_channel_in_nol_list(WLAN_HDD_GET_SAP_CTX_PTR(adapter),
				channel,
				PHY_SINGLE_CHANNEL_CENTERED))) {
		hdd_notice("channel %d is in nol", channel);
		return -EINVAL;
	}

	if ((wlansap_is_channel_leaking_in_nol(
				WLAN_HDD_GET_SAP_CTX_PTR(adapter),
				channel, chan_bw))) {
		hdd_notice("channel %d is leaking in nol", channel);
		return -EINVAL;
	}

	return 0;

}

static void hdd_update_acs_sap_config(hdd_context_t *hdd_ctx,
				     tsap_Config_t *sap_config,
				     struct hdd_vendor_chan_info *channel_list)
{
	sap_config->channel = channel_list->pri_ch;

	sap_config->ch_params.center_freq_seg0 =
				channel_list->vht_seg0_center_ch;
	sap_config->ch_params.center_freq_seg1 =
				channel_list->vht_seg1_center_ch;

	sap_config->ch_params.sec_ch_offset = channel_list->ht_sec_ch;
	sap_config->ch_params.ch_width = channel_list->chan_width;
	if (sap_config->channel >= 36)
		sap_config->ch_width_orig =
				hdd_ctx->config->vhtChannelWidth;
	else
		sap_config->ch_width_orig =
			hdd_ctx->config->nChannelBondingMode24GHz ?
			eHT_CHANNEL_WIDTH_40MHZ :
			eHT_CHANNEL_WIDTH_20MHZ;

	sap_config->acs_cfg.pri_ch = channel_list->pri_ch;
	sap_config->acs_cfg.ch_width = channel_list->chan_width;
	sap_config->acs_cfg.vht_seg0_center_ch =
				channel_list->vht_seg0_center_ch;
	sap_config->acs_cfg.vht_seg1_center_ch =
				channel_list->vht_seg1_center_ch;
	sap_config->acs_cfg.ht_sec_ch = channel_list->ht_sec_ch;
}

static int hdd_update_acs_channel(hdd_adapter_t *adapter, uint8_t reason,
				  uint8_t channel_cnt,
				  struct hdd_vendor_chan_info *channel_list)
{
	tsap_Config_t *sap_config;
	hdd_ap_ctx_t *hdd_ap_ctx;
	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	QDF_STATUS status = QDF_STATUS_SUCCESS;

	hdd_ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(adapter);
	sap_config = &adapter->sessionCtx.ap.sapConfig;

	if (QDF_TIMER_STATE_RUNNING ==
	    qdf_mc_timer_get_current_state(&adapter->sessionCtx.
					ap.vendor_acs_timer)) {
		qdf_mc_timer_stop(&adapter->sessionCtx.ap.vendor_acs_timer);
	}

	if (channel_list && channel_list->pri_ch == 0) {
		/* Check mode, set default channel */
		channel_list->pri_ch = 6;
		/*
		 * sap_select_default_oper_chan(hdd_ctx->hHal,
		 *      sap_config->acs_cfg.hw_mode);
		 */
	}

	switch (reason) {
	/* SAP init case */
	case QCA_WLAN_VENDOR_ACS_SELECT_REASON_INIT:
		hdd_update_acs_sap_config(hdd_ctx, sap_config, channel_list);
		/* Update Hostapd */
		wlan_hdd_cfg80211_acs_ch_select_evt(adapter);
		break;

	/* DFS detected on current channel */
	case QCA_WLAN_VENDOR_ACS_SELECT_REASON_DFS:
		wlan_sap_update_next_channel(
				WLAN_HDD_GET_SAP_CTX_PTR(adapter),
				channel_list->pri_ch,
				channel_list->chan_width);
		status = sme_update_new_channel_event(
					WLAN_HDD_GET_HAL_CTX(adapter),
					adapter->sessionId);
		break;

	/* LTE coex event on current channel */
	case QCA_WLAN_VENDOR_ACS_SELECT_REASON_LTE_COEX:
		sap_config->acs_cfg.pri_ch = channel_list->pri_ch;
		sap_config->acs_cfg.ch_width = channel_list->chan_width;
		hdd_ap_ctx->sapConfig.ch_width_orig =
				channel_list->chan_width;
		hdd_restart_sap(adapter, sap_config->acs_cfg.pri_ch);
		break;

	default:
		hdd_info("invalid reason for timer invoke");
	}
	qdf_mem_free(channel_list);
	EXIT();
	return status;
}

/**
 * Define short name for vendor channel set config
 */
#define SET_CHAN_REASON QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_REASON
#define SET_CHAN_CHANNEL_COUNT QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_COUNT
#define SET_CHAN_CHAN_LIST QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_LIST
#define SET_CHAN_PRIMARY_CHANNEL \
	QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_PRIMARY
#define SET_CHAN_SECONDARY_CHANNEL \
	QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_SECONDARY
#define SET_CHAN_SEG0_CENTER_CHANNEL \
	QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_CENTER_SEG0
#define	SET_CHAN_SEG1_CENTER_CHANNEL \
	QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_CENTER_SEG1
#define	SET_CHAN_CHANNEL_WIDTH \
	QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_WIDTH
#define	SET_CHAN_MAX QCA_WLAN_VENDOR_ATTR_EXTERNAL_ACS_CHANNEL_MAX

/**
 * hdd_parse_vendor_acs_chan_config() - API to parse vendor acs channel config
 * @channel_list: pointer to hdd_vendor_chan_info
 * @reason: channel change reason
 * @channel_cnt: channel count
 * @data: data
 * @data_len: data len
 *
 * Return: 0 on success, negative errno on failure
 */
static int hdd_parse_vendor_acs_chan_config(struct hdd_vendor_chan_info
		**chan_list_ptr, uint8_t *reason, uint8_t *channel_cnt,
		const void *data, int data_len)
{
	int rem, i = 0;
	struct nlattr *tb[SET_CHAN_MAX + 1];
	struct nlattr *tb2[SET_CHAN_MAX + 1];
	struct nlattr *curr_attr;
	struct hdd_vendor_chan_info *channel_list;

	if (nla_parse(tb, SET_CHAN_MAX, data, data_len, NULL)) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	if (tb[SET_CHAN_REASON])
		*reason = nla_get_u8(tb[SET_CHAN_REASON]);

	if (tb[SET_CHAN_CHANNEL_COUNT]) {
		*channel_cnt = nla_get_u8(tb[
				SET_CHAN_CHANNEL_COUNT]);
		hdd_info("channel count %d", *channel_cnt);
	}

	if (!(*channel_cnt)) {
		hdd_err("channel count is %d", *channel_cnt);
		return -EINVAL;
	}

	channel_list = qdf_mem_malloc(sizeof(struct hdd_vendor_chan_info) *
					(*channel_cnt));

	nla_for_each_nested(curr_attr, tb[SET_CHAN_CHAN_LIST], rem) {
		if (nla_parse(tb2,
			SET_CHAN_MAX,
			nla_data(curr_attr), nla_len(curr_attr),
			NULL)) {
			hdd_err("nla_parse failed");
			return -EINVAL;
		}
		/* Parse and Fetch allowed SSID list*/
		if (tb2[SET_CHAN_PRIMARY_CHANNEL]) {
			channel_list[i].pri_ch =
				nla_get_u8(
					tb2[SET_CHAN_PRIMARY_CHANNEL]);
		}
		if (tb2[SET_CHAN_SECONDARY_CHANNEL]) {
			channel_list[i].ht_sec_ch =
				nla_get_u8(tb2[SET_CHAN_SECONDARY_CHANNEL]);
		}
		if (tb2[SET_CHAN_SEG0_CENTER_CHANNEL]) {
			channel_list[i].vht_seg0_center_ch =
				nla_get_u8(tb2[SET_CHAN_SEG0_CENTER_CHANNEL]);
		}
		if (tb2[SET_CHAN_SEG1_CENTER_CHANNEL]) {
			channel_list[i].vht_seg1_center_ch =
				nla_get_u8(tb2[SET_CHAN_SEG1_CENTER_CHANNEL]);
		}
		if (tb2[SET_CHAN_CHANNEL_WIDTH]) {
			channel_list[i].chan_width =
				nla_get_u8(tb2[SET_CHAN_CHANNEL_WIDTH]);
		}
		hdd_info("index %d pri %d sec %d seg0 %d seg1 %d width %d",
			i, channel_list[i].pri_ch,
			channel_list[i].ht_sec_ch,
			channel_list[i].vht_seg0_center_ch,
			channel_list[i].vht_seg1_center_ch,
			channel_list[i].chan_width);
		i++;
		if (i > *channel_cnt)
			break;
	}
	*chan_list_ptr = channel_list;

	return 0;
}

/**
 * Undef short names for vendor set channel configuration
 */
#undef SET_CHAN_REASON
#undef SET_CHAN_CHANNEL_COUNT
#undef SET_CHAN_CHAN_LIST
#undef SET_CHAN_PRIMARY_CHANNEL
#undef SET_CHAN_SECONDARY_CHANNEL
#undef SET_CHAN_SEG0_CENTER_CHANNEL
#undef SET_CHAN_SEG1_CENTER_CHANNEL
#undef SET_CHAN_CHANNEL_WIDTH
#undef SET_CHAN_MAX

/**
 * __wlan_hdd_cfg80211_update_vendor_channel() - update vendor channel
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_update_vendor_channel(struct wiphy *wiphy,
		struct wireless_dev *wdev,
		const void *data, int data_len)
{
	int ret_val;
	QDF_STATUS qdf_status;
	uint8_t channel_cnt = 0, reason = -1;
	struct hdd_vendor_chan_info *channel_list = NULL;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(wdev->netdev);
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);

	ENTER();

	ret_val = wlan_hdd_validate_context(hdd_ctx);
	if (ret_val)
		return ret_val;

	if (hdd_get_conparam() == QDF_GLOBAL_FTM_MODE) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (test_bit(VENDOR_ACS_RESPONSE_PENDING, &adapter->event_flags))
		clear_bit(VENDOR_ACS_RESPONSE_PENDING, &adapter->event_flags);
	else {
		hdd_err("already timeout happened for acs");
		return -EINVAL;
	}

	ret_val = hdd_parse_vendor_acs_chan_config(&channel_list, &reason,
					&channel_cnt, data, data_len);
	if (ret_val)
		return ret_val;

	/* Validate channel to be set */
	while (channel_cnt && channel_list) {
		qdf_status = wlan_hdd_validate_acs_channel(adapter,
					channel_list->pri_ch,
					channel_list->chan_width);
		if (qdf_status == QDF_STATUS_SUCCESS)
			break;
		channel_cnt--;
		channel_list++;
	}
	if ((channel_cnt <= 0) || !channel_list) {
		hdd_err("no available channel/chanlist %p", channel_list);
		return -EINVAL;
	}

	qdf_status = hdd_update_acs_channel(adapter, reason,
				      channel_cnt, channel_list);
	return qdf_status_to_os_return(qdf_status);
}

/**
 * wlan_hdd_cfg80211_update_vendor_channel() - update vendor channel
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_update_vendor_channel(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_update_vendor_channel(wiphy, wdev, data,
								data_len);
	cds_ssr_protect(__func__);

	return ret;
}

/**
 * wlan_hdd_cfg80211_setband() - Wrapper to setband
 * @wiphy:    wiphy structure pointer
 * @wdev:     Wireless device structure pointer
 * @data:     Pointer to the data received
 * @data_len: Length of @data
 *
 * Return: 0 on success; errno on failure
 */
static int wlan_hdd_cfg80211_setband(struct wiphy *wiphy,
				    struct wireless_dev *wdev,
				    const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_setband(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_cfg80211_sar_convert_limit_set() - Convert limit set value
 * @nl80211_value:    Vendor command attribute value
 * @wmi_value:        Pointer to return converted WMI return value
 *
 * Convert NL80211 vendor command value for SAR limit set to WMI value
 * Return: 0 on success, -1 on invalid value
 */
static int wlan_hdd_cfg80211_sar_convert_limit_set(u32 nl80211_value,
						   u32 *wmi_value)
{
	int ret = 0;

	switch (nl80211_value) {
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_NONE:
		*wmi_value = WMI_SAR_FEATURE_OFF;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF0:
		*wmi_value = WMI_SAR_FEATURE_ON_SET_0;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF1:
		*wmi_value = WMI_SAR_FEATURE_ON_SET_1;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF2:
		*wmi_value = WMI_SAR_FEATURE_ON_SET_2;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF3:
		*wmi_value = WMI_SAR_FEATURE_ON_SET_3;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_BDF4:
		*wmi_value = WMI_SAR_FEATURE_ON_SET_4;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SELECT_USER:
		*wmi_value = WMI_SAR_FEATURE_ON_USER_DEFINED;
		break;
	default:
		ret = -1;
	}
	return ret;
}

/**
 * wlan_hdd_cfg80211_sar_convert_band() - Convert WLAN band value
 * @nl80211_value:    Vendor command attribute value
 * @wmi_value:        Pointer to return converted WMI return value
 *
 * Convert NL80211 vendor command value for SAR BAND to WMI value
 * Return: 0 on success, -1 on invalid value
 */
static int wlan_hdd_cfg80211_sar_convert_band(u32 nl80211_value, u32 *wmi_value)
{
	int ret = 0;

	switch (nl80211_value) {
	case NL80211_BAND_2GHZ:
		*wmi_value = WMI_SAR_2G_ID;
		break;
	case NL80211_BAND_5GHZ:
		*wmi_value = WMI_SAR_5G_ID;
		break;
	default:
		ret = -1;
	}
	return ret;
}

/**
 * wlan_hdd_cfg80211_sar_convert_modulation() - Convert WLAN modulation value
 * @nl80211_value:    Vendor command attribute value
 * @wmi_value:        Pointer to return converted WMI return value
 *
 * Convert NL80211 vendor command value for SAR Modulation to WMI value
 * Return: 0 on success, -1 on invalid value
 */
static int wlan_hdd_cfg80211_sar_convert_modulation(u32 nl80211_value,
						    u32 *wmi_value)
{
	int ret = 0;

	switch (nl80211_value) {
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION_CCK:
		*wmi_value = WMI_SAR_MOD_CCK;
		break;
	case QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION_OFDM:
		*wmi_value = WMI_SAR_MOD_OFDM;
		break;
	default:
		ret = -1;
	}
	return ret;
}


/**
 * __wlan_hdd_set_sar_power_limits() - Set SAR power limits
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * This function is used to setup Specific Absorption Rate limit specs.
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_set_sar_power_limits(struct wiphy *wiphy,
					   struct wireless_dev *wdev,
					   const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *sar_spec[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX + 1],
		      *tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX + 1],
		      *sar_spec_list;
	struct sar_limit_cmd_params sar_limit_cmd = {0};
	int ret = -EINVAL, i = 0, rem = 0;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EPERM;
	}

	if (wlan_hdd_validate_context(hdd_ctx))
		return -EINVAL;

	if (nla_parse(tb, QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX,
		      data, data_len, NULL)) {
		hdd_err("Invalid SAR attributes");
		return -EINVAL;
	}

	/* Vendor command manadates all SAR Specs in single call */
	sar_limit_cmd.commit_limits = 1;
	sar_limit_cmd.sar_enable = WMI_SAR_FEATURE_NO_CHANGE;
	if (tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SAR_ENABLE]) {
		if (wlan_hdd_cfg80211_sar_convert_limit_set(nla_get_u32(
				tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SAR_ENABLE]),
				&sar_limit_cmd.sar_enable) < 0) {
			hdd_err("Invalid SAR Enable attr");
			goto fail;
		}
	}
	hdd_info("attr sar sar_enable %d", sar_limit_cmd.sar_enable);

	if (tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_NUM_SPECS]) {
		sar_limit_cmd.num_limit_rows = nla_get_u32(
			tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_NUM_SPECS]);
		hdd_info("attr sar num_limit_rows %d",
			sar_limit_cmd.num_limit_rows);
	}
	if (sar_limit_cmd.num_limit_rows > MAX_SAR_LIMIT_ROWS_SUPPORTED) {
		hdd_err("SAR Spec list exceed supported size");
		goto fail;
	}
	if (sar_limit_cmd.num_limit_rows == 0)
		goto send_sar_limits;
	sar_limit_cmd.sar_limit_row_list = qdf_mem_malloc(sizeof(
						struct sar_limit_cmd_row) *
						sar_limit_cmd.num_limit_rows);
	if (!sar_limit_cmd.sar_limit_row_list) {
		ret = -ENOMEM;
		goto fail;
	}
	if (!tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC]) {
		hdd_err("Invalid SAR SPECs list");
		goto fail;
	}

	nla_for_each_nested(sar_spec_list,
			    tb[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC], rem) {
		if (i == sar_limit_cmd.num_limit_rows) {
			hdd_warn("SAR Cmd has excess SPECs in list");
			break;
		}

		if (nla_parse(sar_spec, QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX,
			      nla_data(sar_spec_list), nla_len(sar_spec_list),
			      NULL)) {
			hdd_err("nla_parse failed for SAR Spec list");
			goto fail;
		}
		sar_limit_cmd.sar_limit_row_list[i].validity_bitmap = 0;
		if (sar_spec[
			    QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT]) {
			sar_limit_cmd.sar_limit_row_list[i].limit_value =
				nla_get_u32(sar_spec[
				QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_POWER_LIMIT]);
		} else {
			hdd_err("SAR Spec does not have power limit value");
			goto fail;
		}

		if (sar_spec[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_BAND]) {
			if (wlan_hdd_cfg80211_sar_convert_band(nla_get_u32(
					sar_spec[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_BAND]),
					&sar_limit_cmd.sar_limit_row_list[i].band_id)
					< 0) {
				hdd_err("Invalid SAR Band attr");
				goto fail;
			}
			sar_limit_cmd.sar_limit_row_list[i].validity_bitmap |=
						WMI_SAR_BAND_ID_VALID_MASK;
		}
		if (sar_spec[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_CHAIN]) {
			sar_limit_cmd.sar_limit_row_list[i].chain_id =
				nla_get_u32(sar_spec[
				QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_CHAIN]);
			sar_limit_cmd.sar_limit_row_list[i].validity_bitmap |=
						WMI_SAR_CHAIN_ID_VALID_MASK;
		}
		if (sar_spec[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION]) {
			if (wlan_hdd_cfg80211_sar_convert_modulation(nla_get_u32(
					sar_spec[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC_MODULATION]),
					&sar_limit_cmd.sar_limit_row_list[i].mod_id)
					< 0) {
				hdd_err("Invalid SAR Modulation attr");
				goto fail;
			}
			sar_limit_cmd.sar_limit_row_list[i].validity_bitmap |=
						WMI_SAR_MOD_ID_VALID_MASK;
		}
		hdd_info("Spec_ID: %d, Band: %d Chain: %d Mod: %d POW_Limit: %d Validity_Bitmap: %d",
			 i, sar_limit_cmd.sar_limit_row_list[i].band_id,
			 sar_limit_cmd.sar_limit_row_list[i].chain_id,
			 sar_limit_cmd.sar_limit_row_list[i].mod_id,
			 sar_limit_cmd.sar_limit_row_list[i].limit_value,
			 sar_limit_cmd.sar_limit_row_list[i].validity_bitmap);
		i++;
	}

	if (i < sar_limit_cmd.num_limit_rows) {
		hdd_warn("SAR Cmd has less SPECs in list");
		sar_limit_cmd.num_limit_rows = i;
	}

send_sar_limits:
	if (sme_set_sar_power_limits(hdd_ctx->hHal, &sar_limit_cmd) ==
							QDF_STATUS_SUCCESS)
		ret = 0;
fail:
	qdf_mem_free(sar_limit_cmd.sar_limit_row_list);
	return ret;
}

/**
 * wlan_hdd_cfg80211_set_sar_power_limits() - Set SAR power limits
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Wrapper function of __wlan_hdd_cfg80211_set_sar_power_limits()
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_set_sar_power_limits(struct wiphy *wiphy,
						  struct wireless_dev *wdev,
						  const void *data,
						  int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_set_sar_power_limits(wiphy, wdev, data,
					      data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct
nla_policy qca_wlan_vendor_attr[QCA_WLAN_VENDOR_ATTR_MAX+1] = {
	[QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY] = {.type = NLA_U32},
	[QCA_WLAN_VENDOR_ATTR_MAC_ADDR]       = {.type = NLA_BINARY,
						 .len = QDF_MAC_ADDR_SIZE},
};

/**
 * __wlan_hdd_cfg80211_set_fast_roaming() - enable/disable roaming
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * This function is used to enable/disable roaming using vendor commands
 *
 * Return: 0 on success, negative errno on failure
 */
static int __wlan_hdd_cfg80211_set_fast_roaming(struct wiphy *wiphy,
					    struct wireless_dev *wdev,
					    const void *data, int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct net_device *dev = wdev->netdev;
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_MAX + 1];
	uint32_t is_fast_roam_enabled;
	int ret;
	QDF_STATUS qdf_status;

	ENTER_DEV(dev);

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (0 != ret)
		return ret;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	ret = nla_parse(tb, QCA_WLAN_VENDOR_ATTR_MAX, data, data_len,
			qca_wlan_vendor_attr);
	if (ret) {
		hdd_err("Invalid ATTR");
		return -EINVAL;
	}

	/* Parse and fetch Enable flag */
	if (!tb[QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY]) {
		hdd_err("attr enable failed");
		return -EINVAL;
	}

	is_fast_roam_enabled = nla_get_u32(
				tb[QCA_WLAN_VENDOR_ATTR_ROAMING_POLICY]);
	hdd_notice("isFastRoamEnabled %d fast_roaming_allowed %d",
		   is_fast_roam_enabled, adapter->fast_roaming_allowed);

	if (!adapter->fast_roaming_allowed) {
		hdd_err("fast roaming not allowed on %s interface",
			adapter->dev->name);
		return -EINVAL;
	}
	/* Update roaming */
	qdf_status = sme_config_fast_roaming(hdd_ctx->hHal, adapter->sessionId,
				      (is_fast_roam_enabled &&
				       adapter->fast_roaming_allowed));
	if (qdf_status != QDF_STATUS_SUCCESS)
		hdd_err("sme_config_fast_roaming failed with status=%d",
				qdf_status);
	ret = qdf_status_to_os_return(qdf_status);

	EXIT();
	return ret;
}

/**
 * wlan_hdd_cfg80211_set_fast_roaming() - enable/disable roaming
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Wrapper function of __wlan_hdd_cfg80211_set_fast_roaming()
 *
 * Return: 0 on success, negative errno on failure
 */
static int wlan_hdd_cfg80211_set_fast_roaming(struct wiphy *wiphy,
					  struct wireless_dev *wdev,
					  const void *data, int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_fast_roaming(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

static const struct nla_policy qca_wlan_vendor_set_trace_level_policy[
		QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MAX + 1] = {
	[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_PARAM] = {.type = NLA_NESTED },
	[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MODULE_ID] = {.type = NLA_U32 },
	[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_TRACE_MASK] = {.type = NLA_U32 },
};

/**
 * __wlan_hdd_cfg80211_set_trace_level() - Set the trace level
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Return: 0 on success, negative errno on failure
 */
static int
__wlan_hdd_cfg80211_set_trace_level(struct wiphy *wiphy,
					struct wireless_dev *wdev,
					const void *data,
					int data_len)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	struct nlattr *tb1[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MAX + 1];
	struct nlattr *tb2[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MAX + 1];
	struct nlattr *apth;
	int rem;
	int ret = 1;
	int print_idx = -1;
	int module_id = -1;
	int bit_mask = -1;
	int status;

	ENTER();

	if (hdd_get_conparam() == QDF_GLOBAL_FTM_MODE) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret != 0)
		return -EINVAL;

	print_idx = qdf_get_pidx();
	if (print_idx < 0 || print_idx >= MAX_PRINT_CONFIG_SUPPORTED) {
		hdd_err("Invalid print controle object index");
		return -EINVAL;
	}

	if (nla_parse(tb1, QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MAX, data,
			data_len, qca_wlan_vendor_set_trace_level_policy)) {
		hdd_err("Invalid attr");
		return -EINVAL;
	}

	if (!tb1[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_PARAM]) {
		hdd_err("attr trace level param failed");
		return -EINVAL;
	}

	nla_for_each_nested(apth,
			tb1[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_PARAM], rem) {
		if (nla_parse(tb2, QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MAX,
				nla_data(apth), nla_len(apth), NULL)) {
			hdd_err("Invalid attr");
			return -EINVAL;
		}

		if (!tb2[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MODULE_ID]) {
			hdd_err("attr Module ID failed");
			return -EINVAL;
		}
		module_id = nla_get_u32
			(tb2[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_MODULE_ID]);

		if (!tb2[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_TRACE_MASK]) {
			hdd_err("attr Verbose mask failed");
			return -EINVAL;
		}
		bit_mask = nla_get_u32
		      (tb2[QCA_WLAN_VENDOR_ATTR_SET_TRACE_LEVEL_TRACE_MASK]);

		status = hdd_qdf_trace_enable(module_id, bit_mask);

		if (status != 0)
			hdd_err("can not set verbose mask %d for the category %d",
				bit_mask, module_id);
	}

	EXIT();
	return ret;
}

/**
 * wlan_hdd_cfg80211_set_trace_level() - Set the trace level
 * @wiphy: Pointer to wireless phy
 * @wdev: Pointer to wireless device
 * @data: Pointer to data
 * @data_len: Length of @data
 *
 * Wrapper function of __wlan_hdd_cfg80211_set_trace_level()
 *
 * Return: 0 on success, negative errno on failure
 */

static int wlan_hdd_cfg80211_set_trace_level(struct wiphy *wiphy,
						struct wireless_dev *wdev,
						const void *data,
						int data_len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_trace_level(wiphy, wdev, data, data_len);
	cds_ssr_unprotect(__func__);

	return ret;
}

const struct wiphy_vendor_command hdd_wiphy_vendor_commands[] = {
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_DFS_CAPABILITY,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = is_driver_dfs_capable
	},

#ifdef WLAN_FEATURE_NAN
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_NAN,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_nan_request
	},
#endif

#ifdef WLAN_FEATURE_STATS_EXT
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_STATS_EXT,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_stats_ext_request
	},
#endif
#ifdef FEATURE_WLAN_EXTSCAN
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_START,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_start
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_STOP,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_stop
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_VALID_CHANNELS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_extscan_get_valid_channels
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_CAPABILITIES,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_get_capabilities
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_GET_CACHED_RESULTS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_get_cached_results
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_BSSID_HOTLIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_set_bssid_hotlist
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_BSSID_HOTLIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_reset_bssid_hotlist
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_SIGNIFICANT_CHANGE,
		.flags =
			WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_set_significant_change
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_SIGNIFICANT_CHANGE,
		.flags =
			WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_reset_significant_change
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_SET_LIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_epno_list
	},
#endif /* FEATURE_WLAN_EXTSCAN */

#ifdef WLAN_FEATURE_LINK_LAYER_STATS
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_LL_STATS_CLR,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ll_stats_clear
	},

	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_LL_STATS_SET,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ll_stats_set
	},

	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_LL_STATS_GET,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ll_stats_get
	},
#endif /* WLAN_FEATURE_LINK_LAYER_STATS */
#ifdef FEATURE_WLAN_TDLS
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_TDLS_ENABLE,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_exttdls_enable
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_TDLS_DISABLE,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV | WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_exttdls_disable
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_TDLS_GET_STATUS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_exttdls_get_status
	},
#endif
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_SUPPORTED_FEATURES,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_get_supported_features
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SCANNING_MAC_OUI,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_set_scanning_mac_oui
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_CONCURRENCY_MATRIX,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV | WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_get_concurrency_matrix
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_NO_DFS_FLAG,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_disable_dfs_chan_scan
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_WISA,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_handle_wisa_cmd
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_STATION,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = hdd_cfg80211_get_station_cmd
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_DO_ACS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				WIPHY_VENDOR_CMD_NEED_NETDEV |
				WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_do_acs
	},

	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_FEATURES,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_get_features
	},
#ifdef WLAN_FEATURE_ROAM_OFFLOAD
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_SET_KEY,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_keymgmt_set_key
	},
#endif
#ifdef FEATURE_WLAN_EXTSCAN
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_SET_PASSPOINT_LIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_passpoint_list
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_PNO_RESET_PASSPOINT_LIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_reset_passpoint_list
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_SET_SSID_HOTLIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_set_ssid_hotlist
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTSCAN_RESET_SSID_HOTLIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_extscan_reset_ssid_hotlist
	},
#endif /* FEATURE_WLAN_EXTSCAN */
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_WIFI_INFO,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_get_wifi_info
	},
#ifndef WLAN_UMAC_CONVERGENCE
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_wifi_configuration_set
	},
#endif
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_ROAM,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_set_ext_roam_params
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_WIFI_LOGGER_START,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_wifi_logger_start
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_RING_DATA,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV,
		.doit = wlan_hdd_cfg80211_wifi_logger_get_ring_data
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_GET_PREFERRED_FREQ_LIST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_preferred_freq_list
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_SET_PROBABLE_OPER_CHANNEL,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_probable_oper_channel
	},
#ifdef WLAN_FEATURE_TSF
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_TSF,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_handle_tsf_cmd
	},
#endif
#ifdef FEATURE_WLAN_TDLS
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_TDLS_GET_CAPABILITIES,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_tdls_capabilities
	},
#endif
#ifdef WLAN_FEATURE_OFFLOAD_PACKETS
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_OFFLOADED_PACKETS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_offloaded_packets
	},
#endif
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_MONITOR_RSSI,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_monitor_rssi
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_ND_OFFLOAD,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_ns_offload
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_LOGGER_FEATURE_SET,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_logger_supp_feature
	},
#ifdef WLAN_FEATURE_MEMDUMP
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_WIFI_LOGGER_MEMORY_DUMP,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_fw_mem_dump
	},
#endif /* WLAN_FEATURE_MEMDUMP */
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_TRIGGER_SCAN,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_vendor_scan
	},

	/* Vendor abort scan */
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_ABORT_SCAN,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_vendor_abort_scan
	},

	/* OCB commands */
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_OCB_SET_CONFIG,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ocb_set_config
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_OCB_SET_UTC_TIME,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ocb_set_utc_time
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_OCB_START_TIMING_ADVERT,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ocb_start_timing_advert
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_OCB_STOP_TIMING_ADVERT,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ocb_stop_timing_advert
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_OCB_GET_TSF_TIMER,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_ocb_get_tsf_timer
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_DCC_GET_STATS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_dcc_get_stats
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_DCC_CLEAR_STATS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_dcc_clear_stats
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_DCC_UPDATE_NDL,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_dcc_update_ndl
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_LINK_PROPERTIES,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_link_properties
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_OTA_TEST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_ota_test
	},
#ifdef FEATURE_LFR_SUBNET_DETECTION
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GW_PARAM_CONFIG,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				WIPHY_VENDOR_CMD_NEED_NETDEV |
				WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_gateway_params
	},
#endif /* FEATURE_LFR_SUBNET_DETECTION */
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_txpower_scale
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_SET_TXPOWER_SCALE_DECR_DB,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_txpower_scale_decr_db
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_PACKET_FILTER,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_bpf_offload
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_ACS_POLICY,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_acs_dfs_mode
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_STA_CONNECT_ROAM_POLICY,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_sta_roam_policy
	},
#ifdef FEATURE_WLAN_CH_AVOID
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_AVOID_FREQUENCY,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_avoid_freq
	},
#endif
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SET_SAP_CONFIG,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_sap_configuration_set
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_START,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				WIPHY_VENDOR_CMD_NEED_NETDEV |
				WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_p2p_lo_start
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_P2P_LISTEN_OFFLOAD_STOP,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				WIPHY_VENDOR_CMD_NEED_NETDEV |
				WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_p2p_lo_stop
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_SAP_CONDITIONAL_CHAN_SWITCH,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				WIPHY_VENDOR_CMD_NEED_NETDEV |
				WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_conditional_chan_switch
	},
#ifdef WLAN_FEATURE_NAN_DATAPATH
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_NDP,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_process_ndp_cmd
	},
#endif
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_WAKE_REASON_STATS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_wakelock_stats
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_BUS_SIZE,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_get_bus_size
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_EXTERNAL_ACS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_update_vendor_channel
	},
	{
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SETBAND,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
					WIPHY_VENDOR_CMD_NEED_NETDEV |
					WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_setband
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_ROAMING,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			WIPHY_VENDOR_CMD_NEED_NETDEV |
			WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_fast_roaming
	},
#ifdef WLAN_FEATURE_DISA
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_ENCRYPTION_TEST,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
				 WIPHY_VENDOR_CMD_NEED_NETDEV |
				 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_encrypt_decrypt_msg
	},
#endif
#ifdef FEATURE_WLAN_TDLS
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd =
			QCA_NL80211_VENDOR_SUBCMD_CONFIGURE_TDLS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_configure_tdls_mode
	},
#endif
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_sar_power_limits
	},
	{
		.info.vendor_id = QCA_NL80211_VENDOR_ID,
		.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_SET_TRACE_LEVEL,
		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
			 WIPHY_VENDOR_CMD_NEED_NETDEV |
			 WIPHY_VENDOR_CMD_NEED_RUNNING,
		.doit = wlan_hdd_cfg80211_set_trace_level
	},

#ifdef WLAN_UMAC_CONVERGENCE
	COMMON_VENDOR_COMMANDS
#endif
};

#if ((LINUX_VERSION_CODE > KERNEL_VERSION(4, 4, 0)) || \
	defined(CFG80211_MULTI_SCAN_PLAN_BACKPORT)) && \
	defined(FEATURE_WLAN_SCAN_PNO)
/**
 * hdd_config_sched_scan_plans_to_wiphy() - configure sched scan plans to wiphy
 * @wiphy: pointer to wiphy
 * @config: pointer to config
 *
 * Return: None
 */
static void hdd_config_sched_scan_plans_to_wiphy(struct wiphy *wiphy,
						 struct hdd_config *config)
{
	if (config->configPNOScanSupport) {
		wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
		wiphy->max_sched_scan_ssids = SIR_PNO_MAX_SUPP_NETWORKS;
		wiphy->max_match_sets = SIR_PNO_MAX_SUPP_NETWORKS;
		wiphy->max_sched_scan_ie_len = SIR_MAC_MAX_IE_LENGTH;
		wiphy->max_sched_scan_plans = SIR_PNO_MAX_PLAN_REQUEST;
		if (config->max_sched_scan_plan_interval)
			wiphy->max_sched_scan_plan_interval =
				config->max_sched_scan_plan_interval;
		if (config->max_sched_scan_plan_iterations)
			wiphy->max_sched_scan_plan_iterations =
				config->max_sched_scan_plan_iterations;
	}
}
#else
static void hdd_config_sched_scan_plans_to_wiphy(struct wiphy *wiphy,
						 struct hdd_config *config)
{
}
#endif


/**
 * hdd_cfg80211_wiphy_alloc() - Allocate wiphy context
 * @priv_size:         Size of the hdd context.
 *
 * Allocate wiphy context and hdd context.
 *
 * Return: hdd context on success and NULL on failure.
 */
hdd_context_t *hdd_cfg80211_wiphy_alloc(int priv_size)
{
	struct wiphy *wiphy;
	hdd_context_t *hdd_ctx;

	ENTER();

	wiphy = wiphy_new(&wlan_hdd_cfg80211_ops, priv_size);

	if (!wiphy) {
		hdd_err("wiphy init failed!\n");
		return NULL;
	}

	hdd_ctx = wiphy_priv(wiphy);

	hdd_ctx->wiphy = wiphy;

	return hdd_ctx;
}

/*
 * FUNCTION: wlan_hdd_cfg80211_update_band
 * This function is called from the supplicant through a
 * private ioctl to change the band value
 */
int wlan_hdd_cfg80211_update_band(struct wiphy *wiphy, eCsrBand eBand)
{
	int i, j;
	enum channel_state channelEnabledState;

	ENTER();

	for (i = 0; i < NUM_NL80211_BANDS; i++) {

		if (NULL == wiphy->bands[i])
			continue;

		for (j = 0; j < wiphy->bands[i]->n_channels; j++) {
			struct ieee80211_supported_band *band = wiphy->bands[i];

			channelEnabledState =
				cds_get_channel_state(band->channels[j].
								 hw_value);

			if (NL80211_BAND_2GHZ == i && eCSR_BAND_5G == eBand) {
				/* 5G only */
#ifdef WLAN_ENABLE_SOCIAL_CHANNELS_5G_ONLY
				/* Enable Social channels for P2P */
				if (WLAN_HDD_IS_SOCIAL_CHANNEL
					    (band->channels[j].center_freq)
				    && CHANNEL_STATE_ENABLE ==
				    channelEnabledState)
					band->channels[j].flags &=
						~IEEE80211_CHAN_DISABLED;
				else
#endif
				band->channels[j].flags |=
					IEEE80211_CHAN_DISABLED;
				continue;
			} else if (NL80211_BAND_5GHZ == i &&
					eCSR_BAND_24 == eBand) {
				/* 2G only */
				band->channels[j].flags |=
					IEEE80211_CHAN_DISABLED;
				continue;
			}

			if (CHANNEL_STATE_DISABLE != channelEnabledState)
				band->channels[j].flags &=
					~IEEE80211_CHAN_DISABLED;
		}
	}
	return 0;
}

#define WLAN_HDD_MAX_NUM_CSA_COUNTERS 2
/*
 * FUNCTION: wlan_hdd_cfg80211_init
 * This function is called by hdd_wlan_startup()
 * during initialization.
 * This function is used to initialize and register wiphy structure.
 */
int wlan_hdd_cfg80211_init(struct device *dev,
			   struct wiphy *wiphy, struct hdd_config *pCfg)
{
	int i, j;
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);

	ENTER();

	/* Now bind the underlying wlan device with wiphy */
	set_wiphy_dev(wiphy, dev);

	wiphy->mgmt_stypes = wlan_hdd_txrx_stypes;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0))
	wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS;
	wiphy->regulatory_flags |= REGULATORY_COUNTRY_IE_IGNORE;
#else
	wiphy->flags |= WIPHY_FLAG_DISABLE_BEACON_HINTS;
	wiphy->country_ie_pref |= NL80211_COUNTRY_IE_IGNORE_CORE;
#endif

	wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME
			| WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD
			| WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL
#ifdef FEATURE_WLAN_STA_4ADDR_SCHEME
			| WIPHY_FLAG_4ADDR_STATION
#endif
			| WIPHY_FLAG_OFFCHAN_TX;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0))
	wiphy->wowlan = &wowlan_support_cfg80211_init;
#else
	wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT;
	wiphy->wowlan.n_patterns = WOWL_MAX_PTRNS_ALLOWED;
	wiphy->wowlan.pattern_min_len = 1;
	wiphy->wowlan.pattern_max_len = WOWL_PTRN_MAX_SIZE;
#endif

	if (pCfg->isFastTransitionEnabled || pCfg->isFastRoamIniFeatureEnabled
#ifdef FEATURE_WLAN_ESE
	    || pCfg->isEseIniFeatureEnabled
#endif
	    ) {
		wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM;
	}
#ifdef FEATURE_WLAN_TDLS
	wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS
			| WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
#endif

	wiphy->features |= NL80211_FEATURE_HT_IBSS;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 1, 0))
	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
#endif

	hdd_config_sched_scan_plans_to_wiphy(wiphy, pCfg);

#if  defined QCA_WIFI_FTM
	if (cds_get_conparam() != QDF_GLOBAL_FTM_MODE) {
#endif

	/* even with WIPHY_FLAG_CUSTOM_REGULATORY,
	 * driver can still register regulatory callback and
	 * it will get regulatory settings in wiphy->band[], but
	 * driver need to determine what to do with both
	 * regulatory settings
	 */

	wiphy->reg_notifier = hdd_reg_notifier;

#if  defined QCA_WIFI_FTM
}
#endif

	wiphy->max_scan_ssids = MAX_SCAN_SSID;

	wiphy->max_scan_ie_len = SIR_MAC_MAX_ADD_IE_LENGTH;

	wiphy->max_acl_mac_addrs = MAX_ACL_MAC_ADDRESS;

	wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION)
				 | BIT(NL80211_IFTYPE_ADHOC)
				 | BIT(NL80211_IFTYPE_P2P_CLIENT)
				 | BIT(NL80211_IFTYPE_P2P_GO)
				 | BIT(NL80211_IFTYPE_AP)
				 | BIT(NL80211_IFTYPE_MONITOR);

	if (pCfg->advertiseConcurrentOperation) {
		if (pCfg->enableMCC) {
			int i;

			for (i = 0;
			     i < ARRAY_SIZE(wlan_hdd_iface_combination);
			     i++) {
				if (!pCfg->allowMCCGODiffBI)
					wlan_hdd_iface_combination[i].
					beacon_int_infra_match = true;
			}
		}
		wiphy->n_iface_combinations =
			ARRAY_SIZE(wlan_hdd_iface_combination);
		wiphy->iface_combinations = wlan_hdd_iface_combination;
	}

	/* Before registering we need to update the ht capabilitied based
	 * on ini values
	 */
	if (!pCfg->ShortGI20MhzEnable) {
		wlan_hdd_band_2_4_ghz.ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_20;
		wlan_hdd_band_5_ghz.ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_20;
	}

	if (!pCfg->ShortGI40MhzEnable) {
		wlan_hdd_band_5_ghz.ht_cap.cap &= ~IEEE80211_HT_CAP_SGI_40;
	}

	if (!pCfg->nChannelBondingMode5GHz) {
		wlan_hdd_band_5_ghz.ht_cap.cap &=
			~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
	}

	/*
	 * In case of static linked driver at the time of driver unload,
	 * module exit doesn't happens. Module cleanup helps in cleaning
	 * of static memory.
	 * If driver load happens statically, at the time of driver unload,
	 * wiphy flags don't get reset because of static memory.
	 * It's better not to store channel in static memory.
	 */
	wiphy->bands[NL80211_BAND_2GHZ] = &wlan_hdd_band_2_4_ghz;
	wiphy->bands[NL80211_BAND_2GHZ]->channels =
		qdf_mem_malloc(sizeof(hdd_channels_2_4_ghz));
	if (wiphy->bands[NL80211_BAND_2GHZ]->channels == NULL) {
		hdd_err("Not enough memory to allocate channels");
		return -ENOMEM;
	}
	qdf_mem_copy(wiphy->bands[NL80211_BAND_2GHZ]->channels,
			&hdd_channels_2_4_ghz[0],
			sizeof(hdd_channels_2_4_ghz));
	if ((hdd_is_5g_supported(pHddCtx)) &&
		((eHDD_DOT11_MODE_11b != pCfg->dot11Mode) &&
		 (eHDD_DOT11_MODE_11g != pCfg->dot11Mode) &&
		 (eHDD_DOT11_MODE_11b_ONLY != pCfg->dot11Mode) &&
		 (eHDD_DOT11_MODE_11g_ONLY != pCfg->dot11Mode))) {
		wiphy->bands[NL80211_BAND_5GHZ] = &wlan_hdd_band_5_ghz;
		wiphy->bands[NL80211_BAND_5GHZ]->channels =
			qdf_mem_malloc(sizeof(hdd_channels_5_ghz));
		if (wiphy->bands[NL80211_BAND_5GHZ]->channels == NULL) {
			hdd_err("Not enough memory to allocate channels");
			qdf_mem_free(wiphy->
				bands[NL80211_BAND_2GHZ]->channels);
			wiphy->bands[NL80211_BAND_2GHZ]->channels = NULL;
			return -ENOMEM;
		}
		qdf_mem_copy(wiphy->bands[NL80211_BAND_5GHZ]->channels,
			&hdd_channels_5_ghz[0],
			sizeof(hdd_channels_5_ghz));
	}

	for (i = 0; i < NUM_NL80211_BANDS; i++) {

		if (NULL == wiphy->bands[i])
			continue;

		for (j = 0; j < wiphy->bands[i]->n_channels; j++) {
			struct ieee80211_supported_band *band = wiphy->bands[i];

			if (NL80211_BAND_2GHZ == i &&
				eCSR_BAND_5G == pCfg->nBandCapability) {
				/* 5G only */
#ifdef WLAN_ENABLE_SOCIAL_CHANNELS_5G_ONLY
				/* Enable social channels for P2P */
				if (WLAN_HDD_IS_SOCIAL_CHANNEL
					    (band->channels[j].center_freq))
					band->channels[j].flags &=
						~IEEE80211_CHAN_DISABLED;
				else
#endif
				band->channels[j].flags |=
					IEEE80211_CHAN_DISABLED;
				continue;
			} else if (NL80211_BAND_5GHZ == i &&
					eCSR_BAND_24 == pCfg->nBandCapability) {
				/* 2G only */
				band->channels[j].flags |=
					IEEE80211_CHAN_DISABLED;
				continue;
			}
		}
	}
	/*Initialise the supported cipher suite details */
	wiphy->cipher_suites = hdd_cipher_suites;
	wiphy->n_cipher_suites = ARRAY_SIZE(hdd_cipher_suites);

	/*signal strength in mBm (100*dBm) */
	wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
	wiphy->max_remain_on_channel_duration = MAX_REMAIN_ON_CHANNEL_DURATION;

	if (cds_get_conparam() != QDF_GLOBAL_FTM_MODE) {
		wiphy->n_vendor_commands =
				ARRAY_SIZE(hdd_wiphy_vendor_commands);
		wiphy->vendor_commands = hdd_wiphy_vendor_commands;

		wiphy->vendor_events = wlan_hdd_cfg80211_vendor_events;
		wiphy->n_vendor_events =
				ARRAY_SIZE(wlan_hdd_cfg80211_vendor_events);
	}

	if (pCfg->enableDFSMasterCap) {
		wiphy->flags |= WIPHY_FLAG_DFS_OFFLOAD;
	}

	wiphy->max_ap_assoc_sta = pCfg->maxNumberOfPeers;

#ifdef QCA_HT_2040_COEX
	wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE;
#endif
	wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 8, 0)) || \
	defined(CFG80211_BEACON_TX_RATE_CUSTOM_BACKPORT)
	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT);
	wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT);
#endif

	hdd_add_channel_switch_support(&wiphy->flags);
	wiphy->max_num_csa_counters = WLAN_HDD_MAX_NUM_CSA_COUNTERS;

	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_deinit() - Deinit cfg80211
 * @wiphy: the wiphy to validate against
 *
 * this function deinit cfg80211 and cleanup the
 * memory allocated in wlan_hdd_cfg80211_init also
 * reset the global reg params.
 *
 * Return: void
 */
void wlan_hdd_cfg80211_deinit(struct wiphy *wiphy)
{
	int i;

	for (i = 0; i < NUM_NL80211_BANDS; i++) {
		if (NULL != wiphy->bands[i] &&
		   (NULL != wiphy->bands[i]->channels)) {
			qdf_mem_free(wiphy->bands[i]->channels);
			wiphy->bands[i]->channels = NULL;
		}
	}
	hdd_reset_global_reg_params();
}

/**
 * wlan_hdd_update_band_cap() - update capabilities for supported bands
 * @hdd_ctx: HDD context
 *
 * this function will update capabilities for supported bands
 *
 * Return: void
 */
static void wlan_hdd_update_band_cap(hdd_context_t *hdd_ctx)
{
	uint32_t val32;
	uint16_t val16;
	tSirMacHTCapabilityInfo *ht_cap_info;
	QDF_STATUS status;

	status = sme_cfg_get_int(hdd_ctx->hHal, WNI_CFG_HT_CAP_INFO, &val32);
	if (QDF_STATUS_SUCCESS != status) {
		hdd_err("could not get HT capability info");
		val32 = 0;
	}
	val16 = (uint16_t)val32;
	ht_cap_info = (tSirMacHTCapabilityInfo *)&val16;

	if (ht_cap_info->txSTBC == true) {
		if (NULL != hdd_ctx->wiphy->bands[NL80211_BAND_2GHZ])
			hdd_ctx->wiphy->bands[NL80211_BAND_2GHZ]->ht_cap.cap |=
						IEEE80211_HT_CAP_TX_STBC;
		if (NULL != hdd_ctx->wiphy->bands[NL80211_BAND_5GHZ])
			hdd_ctx->wiphy->bands[NL80211_BAND_5GHZ]->ht_cap.cap |=
						IEEE80211_HT_CAP_TX_STBC;
	}

	if (!sme_is_feature_supported_by_fw(DOT11AC)) {
		hdd_ctx->wiphy->bands[NL80211_BAND_2GHZ]->
						vht_cap.vht_supported = 0;
		hdd_ctx->wiphy->bands[NL80211_BAND_2GHZ]->vht_cap.cap = 0;
		hdd_ctx->wiphy->bands[NL80211_BAND_5GHZ]->
						vht_cap.vht_supported = 0;
		hdd_ctx->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap = 0;
	}
}

/*
 * In this function, wiphy structure is updated after QDF
 * initialization. In wlan_hdd_cfg80211_init, only the
 * default values will be initialized. The final initialization
 * of all required members can be done here.
 */
void wlan_hdd_update_wiphy(hdd_context_t *hdd_ctx)
{
	hdd_ctx->wiphy->max_ap_assoc_sta = hdd_ctx->config->maxNumberOfPeers;

	wlan_hdd_update_band_cap(hdd_ctx);
}

/**
 * wlan_hdd_update_11n_mode - update 11n mode in hdd cfg
 * @cfg: hdd cfg
 *
 * this function update 11n mode in hdd cfg
 *
 * Return: void
 */
void wlan_hdd_update_11n_mode(struct hdd_config *cfg)
{
	if (sme_is_feature_supported_by_fw(DOT11AC)) {
		hdd_notice("support 11ac");
	} else {
		hdd_notice("not support 11ac");
		if ((cfg->dot11Mode == eHDD_DOT11_MODE_11ac_ONLY) ||
		    (cfg->dot11Mode == eHDD_DOT11_MODE_11ac)) {
			cfg->dot11Mode = eHDD_DOT11_MODE_11n;
			cfg->sap_p2p_11ac_override = 0;
		}
	}
}

/* In this function we are registering wiphy. */
int wlan_hdd_cfg80211_register(struct wiphy *wiphy)
{
	ENTER();
	/* Register our wiphy dev with cfg80211 */
	if (0 > wiphy_register(wiphy)) {
		hdd_err("wiphy register failed");
		return -EIO;
	}

	EXIT();
	return 0;
}

/*
 * HDD function to update wiphy capability based on target offload status.
 *
 * wlan_hdd_cfg80211_init() does initialization of all wiphy related
 * capability even before downloading firmware to the target. In discrete
 * case, host will get know certain offload capability (say sched_scan
 * caps) only after downloading firmware to the target and target boots up.
 * This function is used to override setting done in wlan_hdd_cfg80211_init()
 * based on target capability.
 */
void wlan_hdd_cfg80211_update_wiphy_caps(struct wiphy *wiphy)
{
#ifdef FEATURE_WLAN_SCAN_PNO
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	struct hdd_config *pCfg = pHddCtx->config;

	/* wlan_hdd_cfg80211_init() sets sched_scan caps already in wiphy before
	 * control comes here. Here just we need to clear it if firmware doesn't
	 * have PNO support.
	 */
	if (!pCfg->PnoOffload) {
		wiphy->flags &= ~WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
		wiphy->max_sched_scan_ssids = 0;
		wiphy->max_match_sets = 0;
		wiphy->max_sched_scan_ie_len = 0;
	}
#endif
}

/* This function registers for all frame which supplicant is interested in */
void wlan_hdd_cfg80211_register_frames(hdd_adapter_t *pAdapter)
{
	tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
	/* Register for all P2P action, public action etc frames */
	uint16_t type = (SIR_MAC_MGMT_FRAME << 2) | (SIR_MAC_MGMT_ACTION << 4);

	ENTER();

	/* Register frame indication call back */
	sme_register_mgmt_frame_ind_callback(hHal, hdd_indicate_mgmt_frame);

	/* Register for p2p ack indication */
	sme_register_p2p_ack_ind_callback(hHal, hdd_send_action_cnf_cb);

	/* Right now we are registering these frame when driver is getting
	 * initialized. Once we will move to 2.6.37 kernel, in which we have
	 * frame register ops, we will move this code as a part of that
	 */

	/* GAS Initial Request */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) GAS_INITIAL_REQ,
				GAS_INITIAL_REQ_SIZE);

	/* GAS Initial Response */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) GAS_INITIAL_RSP,
				GAS_INITIAL_RSP_SIZE);

	/* GAS Comeback Request */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) GAS_COMEBACK_REQ,
				GAS_COMEBACK_REQ_SIZE);

	/* GAS Comeback Response */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) GAS_COMEBACK_RSP,
				GAS_COMEBACK_RSP_SIZE);

	/* P2P Public Action */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) P2P_PUBLIC_ACTION_FRAME,
				P2P_PUBLIC_ACTION_FRAME_SIZE);

	/* P2P Action */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) P2P_ACTION_FRAME,
				P2P_ACTION_FRAME_SIZE);

	/* WNM BSS Transition Request frame */
	sme_register_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				(uint8_t *) WNM_BSS_ACTION_FRAME,
				WNM_BSS_ACTION_FRAME_SIZE);

	/* WNM-Notification */
	sme_register_mgmt_frame(hHal, pAdapter->sessionId, type,
				(uint8_t *) WNM_NOTIFICATION_FRAME,
				WNM_NOTIFICATION_FRAME_SIZE);
}

void wlan_hdd_cfg80211_deregister_frames(hdd_adapter_t *pAdapter)
{
	tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
	/* Register for all P2P action, public action etc frames */
	uint16_t type = (SIR_MAC_MGMT_FRAME << 2) | (SIR_MAC_MGMT_ACTION << 4);

	ENTER();

	/* Right now we are registering these frame when driver is getting
	 * initialized. Once we will move to 2.6.37 kernel, in which we have
	 * frame register ops, we will move this code as a part of that
	 */

	/* GAS Initial Request */

	sme_deregister_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				  (uint8_t *) GAS_INITIAL_REQ,
				  GAS_INITIAL_REQ_SIZE);

	/* GAS Initial Response */
	sme_deregister_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				  (uint8_t *) GAS_INITIAL_RSP,
				  GAS_INITIAL_RSP_SIZE);

	/* GAS Comeback Request */
	sme_deregister_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				  (uint8_t *) GAS_COMEBACK_REQ,
				  GAS_COMEBACK_REQ_SIZE);

	/* GAS Comeback Response */
	sme_deregister_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				  (uint8_t *) GAS_COMEBACK_RSP,
				  GAS_COMEBACK_RSP_SIZE);

	/* P2P Public Action */
	sme_deregister_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				  (uint8_t *) P2P_PUBLIC_ACTION_FRAME,
				  P2P_PUBLIC_ACTION_FRAME_SIZE);

	/* P2P Action */
	sme_deregister_mgmt_frame(hHal, SME_SESSION_ID_ANY, type,
				  (uint8_t *) P2P_ACTION_FRAME,
				  P2P_ACTION_FRAME_SIZE);

	/* WNM-Notification */
	sme_deregister_mgmt_frame(hHal, pAdapter->sessionId, type,
				  (uint8_t *) WNM_NOTIFICATION_FRAME,
				  WNM_NOTIFICATION_FRAME_SIZE);
}

#ifdef FEATURE_WLAN_WAPI
void wlan_hdd_cfg80211_set_key_wapi(hdd_adapter_t *pAdapter, uint8_t key_index,
				    const uint8_t *mac_addr, const uint8_t *key,
				    int key_Len)
{
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	tCsrRoamSetKey setKey;
	bool isConnected = true;
	int status = 0;
	uint32_t roamId = 0xFF;
	uint8_t *pKeyPtr = NULL;
	int n = 0;

	hdd_notice("Device_mode %s(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode);

	qdf_mem_zero(&setKey, sizeof(tCsrRoamSetKey));
	setKey.keyId = key_index;       /* Store Key ID */
	setKey.encType = eCSR_ENCRYPT_TYPE_WPI; /* SET WAPI Encryption */
	setKey.keyDirection = eSIR_TX_RX;       /* Key Directionn both TX and RX */
	setKey.paeRole = 0;     /* the PAE role */
	if (!mac_addr || is_broadcast_ether_addr(mac_addr)) {
		qdf_set_macaddr_broadcast(&setKey.peerMac);
	} else {
		qdf_mem_copy(setKey.peerMac.bytes, mac_addr, QDF_MAC_ADDR_SIZE);
	}
	setKey.keyLength = key_Len;
	pKeyPtr = setKey.Key;
	memcpy(pKeyPtr, key, key_Len);

	hdd_notice("WAPI KEY LENGTH:0x%04x", key_Len);
	for (n = 0; n < key_Len; n++)
		hdd_notice("WAPI KEY Data[%d]:%02x ",
			   n, setKey.Key[n]);

	pHddStaCtx->roam_info.roamingState = HDD_ROAM_STATE_SETTING_KEY;
	if (isConnected) {
		status = sme_roam_set_key(WLAN_HDD_GET_HAL_CTX(pAdapter),
					  pAdapter->sessionId, &setKey, &roamId);
	}
	if (status != 0) {
		hdd_err("sme_roam_set_key returned ERROR status= %d",
			status);
		pHddStaCtx->roam_info.roamingState = HDD_ROAM_STATE_NONE;
	}
}
#endif /* FEATURE_WLAN_WAPI */

uint8_t *wlan_hdd_cfg80211_get_ie_ptr(const uint8_t *ies_ptr, int length,
				      uint8_t eid)
{
	int left = length;
	uint8_t *ptr = (uint8_t *)ies_ptr;
	uint8_t elem_id, elem_len;

	while (left >= 2) {
		elem_id = ptr[0];
		elem_len = ptr[1];
		left -= 2;
		if (elem_len > left) {
			hdd_alert("Invalid IEs eid = %d elem_len=%d left=%d",
			       eid, elem_len, left);
			return NULL;
		}
		if (elem_id == eid) {
			return ptr;
		}

		left -= elem_len;
		ptr += (elem_len + 2);
	}
	return NULL;
}

/*
 * FUNCTION: wlan_hdd_validate_operation_channel
 * called by wlan_hdd_cfg80211_start_bss() and
 * wlan_hdd_set_channel()
 * This function validates whether given channel is part of valid
 * channel list.
 */
QDF_STATUS wlan_hdd_validate_operation_channel(hdd_adapter_t *pAdapter,
					       int channel)
{

	uint32_t num_ch = 0;
	u8 valid_ch[WNI_CFG_VALID_CHANNEL_LIST_LEN];
	u32 indx = 0;
	tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
	uint8_t fValidChannel = false, count = 0;
	struct hdd_config *hdd_pConfig_ini = (WLAN_HDD_GET_CTX(pAdapter))->config;

	num_ch = WNI_CFG_VALID_CHANNEL_LIST_LEN;

	if (hdd_pConfig_ini->sapAllowAllChannel) {
		/* Validate the channel */
		for (count = CHAN_ENUM_1; count <= CHAN_ENUM_165; count++) {
			if (channel == CDS_CHANNEL_NUM(count)) {
				fValidChannel = true;
				break;
			}
		}
		if (fValidChannel != true) {
			hdd_err("Invalid Channel [%d]", channel);
			return QDF_STATUS_E_FAILURE;
		}
	} else {
		if (0 != sme_cfg_get_str(hHal, WNI_CFG_VALID_CHANNEL_LIST,
					 valid_ch, &num_ch)) {
			hdd_err("failed to get valid channel list");
			return QDF_STATUS_E_FAILURE;
		}
		for (indx = 0; indx < num_ch; indx++) {
			if (channel == valid_ch[indx]) {
				break;
			}
		}

		if (indx >= num_ch) {
			hdd_err("Invalid Channel [%d]", channel);
			return QDF_STATUS_E_FAILURE;
		}
	}
	return QDF_STATUS_SUCCESS;

}

#ifdef DHCP_SERVER_OFFLOAD
static void wlan_hdd_set_dhcp_server_offload(hdd_adapter_t *pHostapdAdapter)
{
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pHostapdAdapter);
	tpSirDhcpSrvOffloadInfo pDhcpSrvInfo;
	uint8_t numEntries = 0;
	uint8_t srv_ip[IPADDR_NUM_ENTRIES];
	uint8_t num;
	uint32_t temp;
	pDhcpSrvInfo = qdf_mem_malloc(sizeof(*pDhcpSrvInfo));
	if (NULL == pDhcpSrvInfo) {
		hdd_err("could not allocate tDhcpSrvOffloadInfo!");
		return;
	}
	pDhcpSrvInfo->vdev_id = pHostapdAdapter->sessionId;
	pDhcpSrvInfo->dhcpSrvOffloadEnabled = true;
	pDhcpSrvInfo->dhcpClientNum = pHddCtx->config->dhcpMaxNumClients;
	hdd_string_to_u8_array(pHddCtx->config->dhcpServerIP,
			       srv_ip, &numEntries, IPADDR_NUM_ENTRIES);
	if (numEntries != IPADDR_NUM_ENTRIES) {
		hdd_err("incorrect IP address (%s) assigned for DHCP server!", pHddCtx->config->dhcpServerIP);
		goto end;
	}
	if ((srv_ip[0] >= 224) && (srv_ip[0] <= 239)) {
		hdd_err("invalid IP address (%s)! It could NOT be multicast IP address!", pHddCtx->config->dhcpServerIP);
		goto end;
	}
	if (srv_ip[IPADDR_NUM_ENTRIES - 1] >= 100) {
		hdd_err("invalid IP address (%s)! The last field must be less than 100!", pHddCtx->config->dhcpServerIP);
		goto end;
	}
	for (num = 0; num < numEntries; num++) {
		temp = srv_ip[num];
		pDhcpSrvInfo->dhcpSrvIP |= (temp << (8 * num));
	}
	if (QDF_STATUS_SUCCESS !=
	    sme_set_dhcp_srv_offload(pHddCtx->hHal, pDhcpSrvInfo)) {
		hdd_err("sme_setDHCPSrvOffload fail!");
		goto end;
	}
	hdd_info("enable DHCP Server offload successfully!");
end:
	qdf_mem_free(pDhcpSrvInfo);
	return;
}
#endif /* DHCP_SERVER_OFFLOAD */

static int __wlan_hdd_cfg80211_change_bss(struct wiphy *wiphy,
					  struct net_device *dev,
					  struct bss_parameters *params)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	int ret = 0;
	QDF_STATUS qdf_ret_status;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_CHANGE_BSS,
			 pAdapter->sessionId, params->ap_isolate));
	hdd_notice("Device_mode %s(%d), ap_isolate = %d",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode, params->ap_isolate);

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	ret = wlan_hdd_validate_context(pHddCtx);
	if (0 != ret)
		return ret;

	if (!(pAdapter->device_mode == QDF_SAP_MODE ||
	      pAdapter->device_mode == QDF_P2P_GO_MODE)) {
		return -EOPNOTSUPP;
	}

	/* ap_isolate == -1 means that in change bss, upper layer doesn't
	 * want to update this parameter
	 */
	if (-1 != params->ap_isolate) {
		pAdapter->sessionCtx.ap.apDisableIntraBssFwd =
			!!params->ap_isolate;

		qdf_ret_status = sme_ap_disable_intra_bss_fwd(pHddCtx->hHal,
							      pAdapter->sessionId,
							      pAdapter->sessionCtx.
							      ap.
							      apDisableIntraBssFwd);
		if (!QDF_IS_STATUS_SUCCESS(qdf_ret_status)) {
			ret = -EINVAL;
		}
	}

	EXIT();
	return ret;
}

/**
 * wlan_hdd_change_client_iface_to_new_mode() - to change iface to provided mode
 * @ndev: pointer to net device provided by supplicant
 * @type: type of the interface, upper layer wanted to change
 *
 * Upper layer provides the new interface mode that needs to be changed
 * for given net device
 *
 * Return: success or failure in terms of integer value
 */
static int wlan_hdd_change_client_iface_to_new_mode(struct net_device *ndev,
					     enum nl80211_iftype type)
{
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	struct hdd_config *config = hdd_ctx->config;
	hdd_wext_state_t *wext;
	struct wireless_dev *wdev;
	QDF_STATUS status = QDF_STATUS_SUCCESS;

	ENTER();

	if (test_bit(ACS_IN_PROGRESS, &hdd_ctx->g_event_flags)) {
		hdd_notice("ACS is in progress, don't change iface!");
		return 0;
	}

	wdev = ndev->ieee80211_ptr;
	hdd_stop_adapter(hdd_ctx, adapter, true);
	hdd_deinit_adapter(hdd_ctx, adapter, true);
	wdev->iftype = type;
	/*Check for sub-string p2p to confirm its a p2p interface */
	if (NULL != strnstr(ndev->name, "p2p", 3)) {
		adapter->device_mode =
			(type == NL80211_IFTYPE_STATION) ?
			QDF_P2P_DEVICE_MODE : QDF_P2P_CLIENT_MODE;
	} else if (type == NL80211_IFTYPE_ADHOC) {
		adapter->device_mode = QDF_IBSS_MODE;
	} else {
		adapter->device_mode =
			(type == NL80211_IFTYPE_STATION) ?
			QDF_STA_MODE : QDF_P2P_CLIENT_MODE;
	}
	memset(&adapter->sessionCtx, 0, sizeof(adapter->sessionCtx));
	hdd_set_station_ops(adapter->dev);
	wext = WLAN_HDD_GET_WEXT_STATE_PTR(adapter);
	wext->roamProfile.pAddIEScan = adapter->scan_info.scanAddIE.addIEdata;
	wext->roamProfile.nAddIEScanLength =
		adapter->scan_info.scanAddIE.length;
	if (type == NL80211_IFTYPE_ADHOC) {
		status = hdd_init_station_mode(adapter);
		wext->roamProfile.BSSType = eCSR_BSS_TYPE_START_IBSS;
		wext->roamProfile.phyMode =
			hdd_cfg_xlate_to_csr_phy_mode(config->dot11Mode);
	}
	EXIT();
	return status;
}

static int wlan_hdd_cfg80211_change_bss(struct wiphy *wiphy,
					struct net_device *dev,
					struct bss_parameters *params)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_change_bss(wiphy, dev, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

/* FUNCTION: wlan_hdd_change_country_code_cd
 *  to wait for contry code completion
 */
void *wlan_hdd_change_country_code_cb(void *pAdapter)
{
	hdd_adapter_t *call_back_pAdapter = pAdapter;
	complete(&call_back_pAdapter->change_country_code);
	return NULL;
}

/**
 * __wlan_hdd_cfg80211_change_iface() - change interface cfg80211 op
 * @wiphy: Pointer to the wiphy structure
 * @ndev: Pointer to the net device
 * @type: Interface type
 * @flags: Flags for change interface
 * @params: Pointer to change interface parameters
 *
 * Return: 0 for success, error number on failure.
 */
static int __wlan_hdd_cfg80211_change_iface(struct wiphy *wiphy,
					    struct net_device *ndev,
					    enum nl80211_iftype type,
					    u32 *flags,
					    struct vif_params *params)
{
	struct wireless_dev *wdev;
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_context_t *pHddCtx;
	tCsrRoamProfile *pRoamProfile = NULL;
	eCsrRoamBssType LastBSSType;
	struct hdd_config *pConfig = NULL;
	QDF_STATUS vstatus;
	int status;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);
	if (0 != status)
		return status;

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_CHANGE_IFACE,
			 pAdapter->sessionId, type));

	hdd_notice("Device_mode = %d, IFTYPE = 0x%x",
	       pAdapter->device_mode, type);

	status = hdd_wlan_start_modules(pHddCtx, pAdapter, false);
	if (status) {
		hdd_err("Failed to start modules");
		return -EINVAL;
	}

	if (!cds_allow_concurrency(
				wlan_hdd_convert_nl_iftype_to_hdd_type(type),
				0, HW_MODE_20_MHZ)) {
		hdd_debug("This concurrency combination is not allowed");
		return -EINVAL;
	}

	pConfig = pHddCtx->config;
	wdev = ndev->ieee80211_ptr;

	/* Reset the current device mode bit mask */
	cds_clear_concurrency_mode(pAdapter->device_mode);

	hdd_tdls_notify_mode_change(pAdapter, pHddCtx);

	if ((pAdapter->device_mode == QDF_STA_MODE) ||
	    (pAdapter->device_mode == QDF_P2P_CLIENT_MODE) ||
	    (pAdapter->device_mode == QDF_P2P_DEVICE_MODE) ||
	    (pAdapter->device_mode == QDF_IBSS_MODE)) {
		hdd_wext_state_t *pWextState =
			WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);

		pRoamProfile = &pWextState->roamProfile;
		LastBSSType = pRoamProfile->BSSType;

		switch (type) {
		case NL80211_IFTYPE_STATION:
		case NL80211_IFTYPE_P2P_CLIENT:
		case NL80211_IFTYPE_ADHOC:
			if (type == NL80211_IFTYPE_ADHOC) {
				wlan_hdd_tdls_exit(pAdapter);
				hdd_deregister_tx_flow_control(pAdapter);
				hdd_notice("Setting interface Type to ADHOC");
			}
			vstatus = wlan_hdd_change_client_iface_to_new_mode(ndev,
					type);
			if (vstatus != QDF_STATUS_SUCCESS)
				return -EINVAL;
			if (hdd_start_adapter(pAdapter)) {
				hdd_err("Failed to start adapter :%d",
						pAdapter->device_mode);
				return -EINVAL;
			}
			goto done;
		case NL80211_IFTYPE_AP:
		case NL80211_IFTYPE_P2P_GO:
		{
			hdd_info("Setting interface Type to %s",
			       (type ==
				NL80211_IFTYPE_AP) ? "SoftAP" :
			       "P2pGo");

			/* Cancel any remain on channel for GO mode */
			if (NL80211_IFTYPE_P2P_GO == type) {
				wlan_hdd_cancel_existing_remain_on_channel
					(pAdapter);
			}

			hdd_stop_adapter(pHddCtx, pAdapter, true);
			/* De-init the adapter */
			hdd_deinit_adapter(pHddCtx, pAdapter, true);
			memset(&pAdapter->sessionCtx, 0,
			       sizeof(pAdapter->sessionCtx));
			pAdapter->device_mode =
				(type ==
				 NL80211_IFTYPE_AP) ? QDF_SAP_MODE :
				QDF_P2P_GO_MODE;

			/*
			 * Fw will take care incase of concurrency
			 */

			if ((QDF_SAP_MODE == pAdapter->device_mode)
			    && (pConfig->apRandomBssidEnabled)) {
				/* To meet Android requirements create
				 * a randomized MAC address of the
				 * form 02:1A:11:Fx:xx:xx
				 */
				get_random_bytes(&ndev->dev_addr[3], 3);
				ndev->dev_addr[0] = 0x02;
				ndev->dev_addr[1] = 0x1A;
				ndev->dev_addr[2] = 0x11;
				ndev->dev_addr[3] |= 0xF0;
				memcpy(pAdapter->macAddressCurrent.
				       bytes, ndev->dev_addr,
				       QDF_MAC_ADDR_SIZE);
				pr_info("wlan: Generated HotSpot BSSID "
					MAC_ADDRESS_STR "\n",
					MAC_ADDR_ARRAY(ndev->dev_addr));
			}

			hdd_set_ap_ops(pAdapter->dev);

			if (hdd_start_adapter(pAdapter)) {
				hdd_err("Error initializing the ap mode");
				return -EINVAL;
			}
			/* Interface type changed update in wiphy structure */
			if (wdev) {
				wdev->iftype = type;
			} else {
				hdd_err("Wireless dev is NULL");
				return -EINVAL;
			}
			goto done;
		}

		default:
			hdd_err("Unsupported interface type (%d)",
			       type);
			return -EOPNOTSUPP;
		}
	} else if ((pAdapter->device_mode == QDF_SAP_MODE) ||
		   (pAdapter->device_mode == QDF_P2P_GO_MODE)) {
		switch (type) {
		case NL80211_IFTYPE_STATION:
		case NL80211_IFTYPE_P2P_CLIENT:
		case NL80211_IFTYPE_ADHOC:
			status = wlan_hdd_change_client_iface_to_new_mode(ndev,
					type);
			if (status != QDF_STATUS_SUCCESS)
				return status;
			if (hdd_start_adapter(pAdapter)) {
				hdd_err("Failed to start adapter :%d",
						pAdapter->device_mode);
				return -EINVAL;
			}
			goto done;

		case NL80211_IFTYPE_AP:
		case NL80211_IFTYPE_P2P_GO:
			wdev->iftype = type;
			pAdapter->device_mode = (type == NL80211_IFTYPE_AP) ?
						QDF_SAP_MODE : QDF_P2P_GO_MODE;
			goto done;

		default:
			hdd_err("Unsupported interface type(%d)",
			       type);
			return -EOPNOTSUPP;
		}
	} else {
		hdd_err("Unsupported device mode(%d)",
		       pAdapter->device_mode);
		return -EOPNOTSUPP;
	}
done:
	/* Set bitmask based on updated value */
	cds_set_concurrency_mode(pAdapter->device_mode);

	hdd_lpass_notify_mode_change(pAdapter);

	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_change_iface() - change interface cfg80211 op
 * @wiphy: Pointer to the wiphy structure
 * @ndev: Pointer to the net device
 * @type: Interface type
 * @flags: Flags for change interface
 * @params: Pointer to change interface parameters
 *
 * Return: 0 for success, error number on failure.
 */
static int wlan_hdd_cfg80211_change_iface(struct wiphy *wiphy,
					  struct net_device *ndev,
					  enum nl80211_iftype type,
					  u32 *flags,
					  struct vif_params *params)
{
	int ret;

	cds_ssr_protect(__func__);
	ret =
		__wlan_hdd_cfg80211_change_iface(wiphy, ndev, type, flags, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

#ifdef FEATURE_WLAN_TDLS
static bool wlan_hdd_is_duplicate_channel(uint8_t *arr,
					  int index, uint8_t match)
{
	int i;
	for (i = 0; i < index; i++) {
		if (arr[i] == match)
			return true;
	}
	return false;
}
#endif

/**
 * __wlan_hdd_change_station() - change station
 * @wiphy: Pointer to the wiphy structure
 * @dev: Pointer to the net device.
 * @mac: bssid
 * @params: Pointer to station parameters
 *
 * Return: 0 for success, error number on failure.
 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0))
static int __wlan_hdd_change_station(struct wiphy *wiphy,
				   struct net_device *dev,
				   const uint8_t *mac,
				   struct station_parameters *params)
#else
static int __wlan_hdd_change_station(struct wiphy *wiphy,
				   struct net_device *dev,
				   uint8_t *mac,
				   struct station_parameters *params)
#endif
{
	QDF_STATUS status = QDF_STATUS_SUCCESS;
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx;
	hdd_station_ctx_t *pHddStaCtx;
	struct qdf_mac_addr STAMacAddress;
#ifdef FEATURE_WLAN_TDLS
	tCsrStaParams StaParams = { 0 };
	uint8_t isBufSta = 0;
	uint8_t isOffChannelSupported = 0;
	bool is_qos_wmm_sta = false;
#endif
	int ret;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CHANGE_STATION,
			 pAdapter->sessionId, params->listen_interval));

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	ret = wlan_hdd_validate_context(pHddCtx);
	if (0 != ret)
		return ret;

	pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

	qdf_mem_copy(STAMacAddress.bytes, mac, QDF_MAC_ADDR_SIZE);

	if ((pAdapter->device_mode == QDF_SAP_MODE) ||
	    (pAdapter->device_mode == QDF_P2P_GO_MODE)) {
		if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
			status =
				hdd_softap_change_sta_state(pAdapter,
							    &STAMacAddress,
							    OL_TXRX_PEER_STATE_AUTH);

			if (status != QDF_STATUS_SUCCESS) {
				hdd_notice("Not able to change TL state to AUTHENTICATED");
				return -EINVAL;
			}
		}
	} else if ((pAdapter->device_mode == QDF_STA_MODE) ||
		   (pAdapter->device_mode == QDF_P2P_CLIENT_MODE)) {
#ifdef FEATURE_WLAN_TDLS
		if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) {

			if (cds_is_sub_20_mhz_enabled()) {
				hdd_err("TDLS not allowed with sub 20 MHz");
				return -EINVAL;
			}

			StaParams.capability = params->capability;
			StaParams.uapsd_queues = params->uapsd_queues;
			StaParams.max_sp = params->max_sp;

			/* Convert (first channel , number of channels) tuple to
			 * the total list of channels. This goes with the assumption
			 * that if the first channel is < 14, then the next channels
			 * are an incremental of 1 else an incremental of 4 till the number
			 * of channels.
			 */
			hdd_notice("params->supported_channels_len: %d", params->supported_channels_len);
			if (0 != params->supported_channels_len) {
				int i = 0, j = 0, k = 0, no_of_channels = 0;
				int num_unique_channels;
				int next;
				for (i = 0;
				     i < params->supported_channels_len
				     && j < SIR_MAC_MAX_SUPP_CHANNELS; i += 2) {
					int wifi_chan_index;
					if (!wlan_hdd_is_duplicate_channel
						    (StaParams.supported_channels, j,
						    params->supported_channels[i])) {
						StaParams.
						supported_channels[j] =
							params->
							supported_channels[i];
					} else {
						continue;
					}
					wifi_chan_index =
						((StaParams.supported_channels[j] <=
						  HDD_CHANNEL_14) ? 1 : 4);
					no_of_channels =
						params->supported_channels[i + 1];

					hdd_notice("i: %d, j: %d, k: %d, StaParams.supported_channels[%d]: %d, wifi_chan_index: %d, no_of_channels: %d", i, j, k, j,
						  StaParams.
						  supported_channels[j],
						  wifi_chan_index,
						  no_of_channels);
					for (k = 1; k <= no_of_channels &&
					     j < SIR_MAC_MAX_SUPP_CHANNELS - 1;
					     k++) {
						next =
								StaParams.
								supported_channels[j] +
								wifi_chan_index;
						if (!wlan_hdd_is_duplicate_channel(StaParams.supported_channels, j + 1, next)) {
							StaParams.
							supported_channels[j
									   +
									   1]
								= next;
						} else {
							continue;
						}
						hdd_notice("i: %d, j: %d, k: %d, StaParams.supported_channels[%d]: %d", i, j, k,
							  j + 1,
							  StaParams.
							  supported_channels[j +
									     1]);
						j += 1;
					}
				}
				num_unique_channels = j + 1;
				hdd_notice("Unique Channel List");
				for (i = 0; i < num_unique_channels; i++) {
					hdd_notice("StaParams.supported_channels[%d]: %d,", i,
						  StaParams.
						  supported_channels[i]);
				}
				if (MAX_CHANNEL < num_unique_channels)
					num_unique_channels = MAX_CHANNEL;
				StaParams.supported_channels_len =
					num_unique_channels;
				hdd_notice("After removing duplcates StaParams.supported_channels_len: %d",
					  StaParams.supported_channels_len);
			}
			qdf_mem_copy(StaParams.supported_oper_classes,
				     params->supported_oper_classes,
				     params->supported_oper_classes_len);
			StaParams.supported_oper_classes_len =
				params->supported_oper_classes_len;

			if (0 != params->ext_capab_len)
				qdf_mem_copy(StaParams.extn_capability,
					     params->ext_capab,
					     sizeof(StaParams.extn_capability));

			if (NULL != params->ht_capa) {
				StaParams.htcap_present = 1;
				qdf_mem_copy(&StaParams.HTCap, params->ht_capa,
					     sizeof(tSirHTCap));
			}

			StaParams.supported_rates_len =
				params->supported_rates_len;

			/* Note : The Maximum sizeof supported_rates sent by the Supplicant is 32.
			 * The supported_rates array , for all the structures propogating till Add Sta
			 * to the firmware has to be modified , if the supplicant (ieee80211) is
			 * modified to send more rates.
			 */

			/* To avoid Data Currption , set to max length to SIR_MAC_MAX_SUPP_RATES
			 */
			if (StaParams.supported_rates_len >
			    SIR_MAC_MAX_SUPP_RATES)
				StaParams.supported_rates_len =
					SIR_MAC_MAX_SUPP_RATES;

			if (0 != StaParams.supported_rates_len) {
				int i = 0;
				qdf_mem_copy(StaParams.supported_rates,
					     params->supported_rates,
					     StaParams.supported_rates_len);
				hdd_notice("Supported Rates with Length %d",
					  StaParams.supported_rates_len);
				for (i = 0; i < StaParams.supported_rates_len;
				     i++)
					hdd_notice("[%d]: %0x", i,
						  StaParams.supported_rates[i]);
			}

			if (NULL != params->vht_capa) {
				StaParams.vhtcap_present = 1;
				qdf_mem_copy(&StaParams.VHTCap,
					     params->vht_capa,
					     sizeof(tSirVHTCap));
			}

			if (0 != params->ext_capab_len) {
				/*Define A Macro : TODO Sunil */
				if ((1 << 4) & StaParams.extn_capability[3]) {
					isBufSta = 1;
				}
				/* TDLS Channel Switching Support */
				if ((1 << 6) & StaParams.extn_capability[3]) {
					isOffChannelSupported = 1;
				}
			}

			if (pHddCtx->config->fEnableTDLSWmmMode &&
			    (params->ht_capa || params->vht_capa ||
			    (params->sta_flags_set & BIT(NL80211_STA_FLAG_WME))))
				is_qos_wmm_sta = true;

			hdd_notice("%s: TDLS Peer is QOS capable"
				" is_qos_wmm_sta= %d HTcapPresent = %d",
				__func__, is_qos_wmm_sta,
				StaParams.htcap_present);

			status = wlan_hdd_tdls_set_peer_caps(pAdapter, mac,
						&StaParams,
						isBufSta,
						isOffChannelSupported,
						is_qos_wmm_sta);
			if (QDF_STATUS_SUCCESS != status) {
				hdd_err("wlan_hdd_tdls_set_peer_caps failed!");
				return -EINVAL;
			}

			status =
				wlan_hdd_tdls_add_station(wiphy, dev, mac, 1,
							  &StaParams);
			if (QDF_STATUS_SUCCESS != status) {
				hdd_err("wlan_hdd_tdls_add_station failed!");
				return -EINVAL;
			}
		}
#endif
	}
	EXIT();
	return ret;
}

/**
 * wlan_hdd_change_station() - cfg80211 change station handler function
 * @wiphy: Pointer to the wiphy structure
 * @dev: Pointer to the net device.
 * @mac: bssid
 * @params: Pointer to station parameters
 *
 * This is the cfg80211 change station handler function which invokes
 * the internal function @__wlan_hdd_change_station with
 * SSR protection.
 *
 * Return: 0 for success, error number on failure.
 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0)) || defined(WITH_BACKPORTS)
static int wlan_hdd_change_station(struct wiphy *wiphy,
				   struct net_device *dev,
				   const u8 *mac,
				   struct station_parameters *params)
#else
static int wlan_hdd_change_station(struct wiphy *wiphy,
				   struct net_device *dev,
				   u8 *mac,
				   struct station_parameters *params)
#endif
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_change_station(wiphy, dev, mac, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * FUNCTION: __wlan_hdd_cfg80211_add_key
 * This function is used to initialize the key information
 */
static int __wlan_hdd_cfg80211_add_key(struct wiphy *wiphy,
				       struct net_device *ndev,
				       u8 key_index, bool pairwise,
				       const u8 *mac_addr,
				       struct key_params *params)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	tCsrRoamSetKey setKey;
	int status;
	uint32_t roamId = 0xFF;
	hdd_hostapd_state_t *pHostapdState;
	QDF_STATUS qdf_ret_status;
	hdd_context_t *pHddCtx;
	hdd_ap_ctx_t *ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(pAdapter);

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_ADD_KEY,
			 pAdapter->sessionId, params->key_len));
	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	hdd_notice("Device_mode %s(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode);

	if (CSR_MAX_NUM_KEY <= key_index) {
		hdd_err("Invalid key index %d", key_index);

		return -EINVAL;
	}

	if (CSR_MAX_KEY_LEN < params->key_len) {
		hdd_err("Invalid key length %d", params->key_len);

		return -EINVAL;
	}

	hdd_notice("called with key index = %d & key length %d", key_index, params->key_len);

	/*extract key idx, key len and key */
	qdf_mem_zero(&setKey, sizeof(tCsrRoamSetKey));
	setKey.keyId = key_index;
	setKey.keyLength = params->key_len;
	qdf_mem_copy(&setKey.Key[0], params->key, params->key_len);

	switch (params->cipher) {
	case WLAN_CIPHER_SUITE_WEP40:
		setKey.encType = eCSR_ENCRYPT_TYPE_WEP40_STATICKEY;
		break;

	case WLAN_CIPHER_SUITE_WEP104:
		setKey.encType = eCSR_ENCRYPT_TYPE_WEP104_STATICKEY;
		break;

	case WLAN_CIPHER_SUITE_TKIP:
	{
		u8 *pKey = &setKey.Key[0];
		setKey.encType = eCSR_ENCRYPT_TYPE_TKIP;

		qdf_mem_zero(pKey, CSR_MAX_KEY_LEN);

		/* Supplicant sends the 32bytes key in this order
		 *
		 * |--------------|----------|----------|
		 * |   Tk1        |TX-MIC    |  RX Mic  |
		 * |--------------|----------|----------|
		 * <---16bytes---><--8bytes--><--8bytes-->
		 *
		 * Sme expects the 32 bytes key to be in the below order
		 *
		 * |--------------|----------|----------|
		 * |   Tk1        |RX-MIC    |  TX Mic  |
		 * |--------------|----------|----------|
		 * <---16bytes---><--8bytes--><--8bytes-->
		 */
		/* Copy the Temporal Key 1 (TK1) */
		qdf_mem_copy(pKey, params->key, 16);

		/*Copy the rx mic first */
		qdf_mem_copy(&pKey[16], &params->key[24], 8);

		/*Copy the tx mic */
		qdf_mem_copy(&pKey[24], &params->key[16], 8);

		break;
	}

	case WLAN_CIPHER_SUITE_CCMP:
		setKey.encType = eCSR_ENCRYPT_TYPE_AES;
		break;

#ifdef FEATURE_WLAN_WAPI
	case WLAN_CIPHER_SUITE_SMS4:
	{
		qdf_mem_zero(&setKey, sizeof(tCsrRoamSetKey));
		wlan_hdd_cfg80211_set_key_wapi(pAdapter, key_index,
					       mac_addr, params->key,
					       params->key_len);
		return 0;
	}
#endif

#ifdef FEATURE_WLAN_ESE
	case WLAN_CIPHER_SUITE_KRK:
		setKey.encType = eCSR_ENCRYPT_TYPE_KRK;
		break;
#ifdef WLAN_FEATURE_ROAM_OFFLOAD
	case WLAN_CIPHER_SUITE_BTK:
		setKey.encType = eCSR_ENCRYPT_TYPE_BTK;
		break;
#endif
#endif

#ifdef WLAN_FEATURE_11W
	case WLAN_CIPHER_SUITE_AES_CMAC:
		setKey.encType = eCSR_ENCRYPT_TYPE_AES_CMAC;
		break;
#endif

	default:
		hdd_err("unsupported cipher type %u", params->cipher);
		return -EOPNOTSUPP;
	}

	hdd_info("encryption type %d", setKey.encType);

	if (!pairwise) {
		/* set group key */
		hdd_notice("%s- %d: setting Broadcast key", __func__, __LINE__);
		setKey.keyDirection = eSIR_RX_ONLY;
		qdf_set_macaddr_broadcast(&setKey.peerMac);
	} else {
		/* set pairwise key */
		hdd_notice("%s- %d: setting pairwise key", __func__, __LINE__);
		setKey.keyDirection = eSIR_TX_RX;
		qdf_mem_copy(setKey.peerMac.bytes, mac_addr, QDF_MAC_ADDR_SIZE);
	}
	if ((QDF_IBSS_MODE == pAdapter->device_mode) && !pairwise) {
		/* if a key is already installed, block all subsequent ones */
		if (pAdapter->sessionCtx.station.ibss_enc_key_installed) {
			hdd_info("IBSS key installed already");
			return 0;
		}

		setKey.keyDirection = eSIR_TX_RX;
		/*Set the group key */
		status = sme_roam_set_key(WLAN_HDD_GET_HAL_CTX(pAdapter),
					  pAdapter->sessionId, &setKey, &roamId);

		if (0 != status) {
			hdd_err("sme_roam_set_key failed, returned %d", status);
			return -EINVAL;
		}
		/* Save the keys here and call sme_roam_set_key for setting
		 * the PTK after peer joins the IBSS network
		 */
		qdf_mem_copy(&pAdapter->sessionCtx.station.ibss_enc_key,
			     &setKey, sizeof(tCsrRoamSetKey));

		pAdapter->sessionCtx.station.ibss_enc_key_installed = 1;
		return status;
	}
	if ((pAdapter->device_mode == QDF_SAP_MODE) ||
	    (pAdapter->device_mode == QDF_P2P_GO_MODE)) {
		pHostapdState = WLAN_HDD_GET_HOSTAP_STATE_PTR(pAdapter);
		if (pHostapdState->bssState == BSS_START) {
			status = wlansap_set_key_sta(
				WLAN_HDD_GET_SAP_CTX_PTR(pAdapter), &setKey);
			if (status != QDF_STATUS_SUCCESS) {
				hdd_err("[%4d] wlansap_set_key_sta returned ERROR status= %d",
					  __LINE__, status);
			}
		}

		/* Save the key in ap ctx for use on START_BASS and restart */
		if (pairwise ||
			eCSR_ENCRYPT_TYPE_WEP40_STATICKEY == setKey.encType ||
			eCSR_ENCRYPT_TYPE_WEP104_STATICKEY == setKey.encType)
			qdf_mem_copy(&ap_ctx->wepKey[key_index], &setKey,
				     sizeof(tCsrRoamSetKey));
		else
			qdf_mem_copy(&ap_ctx->groupKey, &setKey,
				     sizeof(tCsrRoamSetKey));

	} else if ((pAdapter->device_mode == QDF_STA_MODE) ||
		   (pAdapter->device_mode == QDF_P2P_CLIENT_MODE)) {
		hdd_wext_state_t *pWextState =
			WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
		hdd_station_ctx_t *pHddStaCtx =
			WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

		if (!pairwise) {
			/* set group key */
			if (pHddStaCtx->roam_info.deferKeyComplete) {
				hdd_notice("%s- %d: Perform Set key Complete",
					  __func__, __LINE__);
				hdd_perform_roam_set_key_complete(pAdapter);
			}
		}

		pWextState->roamProfile.Keys.KeyLength[key_index] =
			(u8) params->key_len;

		pWextState->roamProfile.Keys.defaultIndex = key_index;

		qdf_mem_copy(&pWextState->roamProfile.Keys.
			     KeyMaterial[key_index][0], params->key,
			     params->key_len);

		pHddStaCtx->roam_info.roamingState = HDD_ROAM_STATE_SETTING_KEY;

		hdd_info("Set key for peerMac "MAC_ADDRESS_STR" direction %d",
		       MAC_ADDR_ARRAY(setKey.peerMac.bytes),
		       setKey.keyDirection);

		/* The supplicant may attempt to set the PTK once
		 * pre-authentication is done. Save the key in the
		 * UMAC and include it in the ADD BSS request
		 */
		qdf_ret_status = sme_ft_update_key(WLAN_HDD_GET_HAL_CTX(pAdapter),
						   pAdapter->sessionId, &setKey);
		if (qdf_ret_status == QDF_STATUS_FT_PREAUTH_KEY_SUCCESS) {
			hdd_info("Update PreAuth Key success");
			return 0;
		} else if (qdf_ret_status == QDF_STATUS_FT_PREAUTH_KEY_FAILED) {
			hdd_err("Update PreAuth Key failed");
			return -EINVAL;
		}

		/* issue set key request to SME */
		status = sme_roam_set_key(WLAN_HDD_GET_HAL_CTX(pAdapter),
					  pAdapter->sessionId, &setKey, &roamId);

		if (0 != status) {
			hdd_err("sme_roam_set_key failed, returned %d", status);
			pHddStaCtx->roam_info.roamingState =
				HDD_ROAM_STATE_NONE;
			return -EINVAL;
		}

		/* in case of IBSS as there was no information
		 * available about WEP keys during IBSS join, group
		 * key intialized with NULL key, so re-initialize
		 * group key with correct value
		 */
		if ((eCSR_BSS_TYPE_START_IBSS ==
		     pWextState->roamProfile.BSSType)
		    &&
		    !((IW_AUTH_KEY_MGMT_802_1X ==
		       (pWextState->authKeyMgmt & IW_AUTH_KEY_MGMT_802_1X))
		      && (eCSR_AUTH_TYPE_OPEN_SYSTEM ==
			  pHddStaCtx->conn_info.authType)
		      )
		    && ((WLAN_CIPHER_SUITE_WEP40 == params->cipher)
			|| (WLAN_CIPHER_SUITE_WEP104 == params->cipher)
			)
		    ) {
			setKey.keyDirection = eSIR_RX_ONLY;
			qdf_set_macaddr_broadcast(&setKey.peerMac);

			hdd_info("Set key peerMac "MAC_ADDRESS_STR" direction %d",
			       MAC_ADDR_ARRAY(setKey.peerMac.bytes),
			       setKey.keyDirection);

			status = sme_roam_set_key(WLAN_HDD_GET_HAL_CTX(pAdapter),
						  pAdapter->sessionId, &setKey,
						  &roamId);

			if (0 != status) {
				hdd_err("sme_roam_set_key failed for group key (IBSS), returned %d", status);
				pHddStaCtx->roam_info.roamingState =
					HDD_ROAM_STATE_NONE;
				return -EINVAL;
			}
		}
	}
	EXIT();
	return 0;
}

static int wlan_hdd_cfg80211_add_key(struct wiphy *wiphy,
				     struct net_device *ndev,
				     u8 key_index, bool pairwise,
				     const u8 *mac_addr,
				     struct key_params *params)
{
	int ret;
	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_add_key(wiphy, ndev, key_index, pairwise,
					  mac_addr, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * FUNCTION: __wlan_hdd_cfg80211_get_key
 * This function is used to get the key information
 */
static int __wlan_hdd_cfg80211_get_key(struct wiphy *wiphy,
				       struct net_device *ndev,
				       u8 key_index, bool pairwise,
				       const u8 *mac_addr, void *cookie,
				       void (*callback)(void *cookie,
							struct key_params *)
				       )
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	tCsrRoamProfile *pRoamProfile = &(pWextState->roamProfile);
	struct key_params params;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	hdd_notice("Device_mode %s(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode);

	memset(&params, 0, sizeof(params));

	if (CSR_MAX_NUM_KEY <= key_index) {
		hdd_err("invalid key index %d",
		       key_index);
		return -EINVAL;
	}

	switch (pRoamProfile->EncryptionType.encryptionType[0]) {
	case eCSR_ENCRYPT_TYPE_NONE:
		params.cipher = IW_AUTH_CIPHER_NONE;
		break;

	case eCSR_ENCRYPT_TYPE_WEP40_STATICKEY:
	case eCSR_ENCRYPT_TYPE_WEP40:
		params.cipher = WLAN_CIPHER_SUITE_WEP40;
		break;

	case eCSR_ENCRYPT_TYPE_WEP104_STATICKEY:
	case eCSR_ENCRYPT_TYPE_WEP104:
		params.cipher = WLAN_CIPHER_SUITE_WEP104;
		break;

	case eCSR_ENCRYPT_TYPE_TKIP:
		params.cipher = WLAN_CIPHER_SUITE_TKIP;
		break;

	case eCSR_ENCRYPT_TYPE_AES:
		params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
		break;

	default:
		params.cipher = IW_AUTH_CIPHER_NONE;
		break;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_GET_KEY,
			 pAdapter->sessionId, params.cipher));

	params.key_len = pRoamProfile->Keys.KeyLength[key_index];
	params.seq_len = 0;
	params.seq = NULL;
	params.key = &pRoamProfile->Keys.KeyMaterial[key_index][0];
	callback(cookie, &params);

	EXIT();
	return 0;
}

static int wlan_hdd_cfg80211_get_key(struct wiphy *wiphy,
				     struct net_device *ndev,
				     u8 key_index, bool pairwise,
				     const u8 *mac_addr, void *cookie,
				     void (*callback)(void *cookie,
						      struct key_params *)
				     )
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_get_key(wiphy, ndev, key_index, pairwise,
					  mac_addr, cookie, callback);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_del_key() - Delete the encryption key for station
 * @wiphy: wiphy interface context
 * @ndev: pointer to net device
 * @key_index: Key index used in 802.11 frames
 * @unicast: true if it is unicast key
 * @multicast: true if it is multicast key
 *
 * This function is required for cfg80211_ops API.
 * It is used to delete the key information
 * Underlying hardware implementation does not have API to delete the
 * encryption key. It is automatically deleted when the peer is
 * removed. Hence this function currently does nothing.
 * Future implementation may interprete delete key operation to
 * replacing the key with a random junk value, effectively making it
 * useless.
 *
 * Return: status code, always 0.
 */

static int __wlan_hdd_cfg80211_del_key(struct wiphy *wiphy,
				     struct net_device *ndev,
				     u8 key_index,
				     bool pairwise, const u8 *mac_addr)
{
	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_del_key() - cfg80211 delete key handler function
 * @wiphy: Pointer to wiphy structure.
 * @dev: Pointer to net_device structure.
 * @key_index: key index
 * @pairwise: pairwise
 * @mac_addr: mac address
 *
 * This is the cfg80211 delete key handler function which invokes
 * the internal function @__wlan_hdd_cfg80211_del_key with
 * SSR protection.
 *
 * Return: 0 for success, error number on failure.
 */
static int wlan_hdd_cfg80211_del_key(struct wiphy *wiphy,
					struct net_device *dev,
					u8 key_index,
					bool pairwise, const u8 *mac_addr)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_del_key(wiphy, dev, key_index,
					  pairwise, mac_addr);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * FUNCTION: __wlan_hdd_cfg80211_set_default_key
 * This function is used to set the default tx key index
 */
static int __wlan_hdd_cfg80211_set_default_key(struct wiphy *wiphy,
					       struct net_device *ndev,
					       u8 key_index,
					       bool unicast, bool multicast)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	hdd_context_t *pHddCtx;
	int status;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_SET_DEFAULT_KEY,
			 pAdapter->sessionId, key_index));

	hdd_notice("Device_mode %s(%d) key_index = %d",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode, key_index);

	if (CSR_MAX_NUM_KEY <= key_index) {
		hdd_err("Invalid key index %d", key_index);
		return -EINVAL;
	}

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	if ((pAdapter->device_mode == QDF_STA_MODE) ||
	    (pAdapter->device_mode == QDF_P2P_CLIENT_MODE)) {
		if ((eCSR_ENCRYPT_TYPE_TKIP !=
		     pHddStaCtx->conn_info.ucEncryptionType) &&
		    (eCSR_ENCRYPT_TYPE_AES !=
		     pHddStaCtx->conn_info.ucEncryptionType)) {
			/* If default key index is not same as previous one,
			 * then update the default key index
			 */

			tCsrRoamSetKey setKey;
			uint32_t roamId = 0xFF;
			tCsrKeys *Keys = &pWextState->roamProfile.Keys;

			hdd_info("Default tx key index %d", key_index);

			Keys->defaultIndex = (u8) key_index;
			qdf_mem_zero(&setKey, sizeof(tCsrRoamSetKey));
			setKey.keyId = key_index;
			setKey.keyLength = Keys->KeyLength[key_index];

			qdf_mem_copy(&setKey.Key[0],
				     &Keys->KeyMaterial[key_index][0],
				     Keys->KeyLength[key_index]);

			setKey.keyDirection = eSIR_TX_RX;

			qdf_copy_macaddr(&setKey.peerMac,
					 &pHddStaCtx->conn_info.bssId);

			if (Keys->KeyLength[key_index] == CSR_WEP40_KEY_LEN &&
			    pWextState->roamProfile.EncryptionType.
			    encryptionType[0] == eCSR_ENCRYPT_TYPE_WEP104) {
				/* In the case of dynamic wep
				 * supplicant hardcodes DWEP type to
				 * eCSR_ENCRYPT_TYPE_WEP104 even
				 * though ap is configured for WEP-40
				 * encryption. In this canse the key
				 * length is 5 but the encryption type
				 * is 104 hence checking the key
				 * lenght(5) and encryption type(104)
				 * and switching encryption type to 40
				 */
				pWextState->roamProfile.EncryptionType.
				encryptionType[0] = eCSR_ENCRYPT_TYPE_WEP40;
				pWextState->roamProfile.mcEncryptionType.
				encryptionType[0] = eCSR_ENCRYPT_TYPE_WEP40;
			}

			setKey.encType =
				pWextState->roamProfile.EncryptionType.
				encryptionType[0];

			/* Issue set key request */
			status = sme_roam_set_key(WLAN_HDD_GET_HAL_CTX(pAdapter),
						  pAdapter->sessionId, &setKey,
						  &roamId);

			if (0 != status) {
				hdd_err("sme_roam_set_key failed, returned %d",
				       status);
				return -EINVAL;
			}
		}
	} else if (QDF_SAP_MODE == pAdapter->device_mode) {
		/* In SoftAp mode setting key direction for default mode */
		if ((eCSR_ENCRYPT_TYPE_TKIP !=
		     pWextState->roamProfile.EncryptionType.encryptionType[0])
		    && (eCSR_ENCRYPT_TYPE_AES !=
			pWextState->roamProfile.EncryptionType.
			encryptionType[0])) {
			/* Saving key direction for default key index to TX default */
			hdd_ap_ctx_t *pAPCtx =
				WLAN_HDD_GET_AP_CTX_PTR(pAdapter);
			pAPCtx->wepKey[key_index].keyDirection =
				eSIR_TX_DEFAULT;
			hdd_info("WEP default key index set to SAP context %d",
				key_index);
			pAPCtx->wep_def_key_idx = key_index;
		}
	}

	EXIT();
	return status;
}

static int wlan_hdd_cfg80211_set_default_key(struct wiphy *wiphy,
					     struct net_device *ndev,
					     u8 key_index,
					     bool unicast, bool multicast)
{
	int ret;
	cds_ssr_protect(__func__);
	ret =
		__wlan_hdd_cfg80211_set_default_key(wiphy, ndev, key_index, unicast,
						    multicast);
	cds_ssr_unprotect(__func__);

	return ret;
}

/*
 * wlan_hdd_cfg80211_update_bss_list :to inform nl80211
 * interface that BSS might have been lost.
 * @pAdapter: adaptor
 * @bssid: bssid which might have been lost
 *
 * Return: bss which is unlinked from kernel cache
 */
struct cfg80211_bss *wlan_hdd_cfg80211_update_bss_list(
	hdd_adapter_t *pAdapter, tSirMacAddr bssid)
{
	struct net_device *dev = pAdapter->dev;
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct wiphy *wiphy = wdev->wiphy;
	struct cfg80211_bss *bss = NULL;

	bss = hdd_cfg80211_get_bss(wiphy, NULL, bssid,
			NULL, 0);
	if (bss == NULL) {
		hdd_err("BSS not present");
	} else {
		hdd_info("cfg80211_unlink_bss called for BSSID "
			MAC_ADDRESS_STR, MAC_ADDR_ARRAY(bssid));
		cfg80211_unlink_bss(wiphy, bss);
	}
	return bss;
}


/**
 * wlan_hdd_cfg80211_inform_bss_frame() - inform bss details to NL80211
 * @pAdapter: Pointer to adapter
 * @bss_desc: Pointer to bss descriptor
 *
 * This function is used to inform the BSS details to nl80211 interface.
 *
 * Return: struct cfg80211_bss pointer
 */
struct cfg80211_bss *wlan_hdd_cfg80211_inform_bss_frame(hdd_adapter_t *pAdapter,
						tSirBssDescription *bss_desc)
{
	/*
	 * cfg80211_inform_bss() is not updating ie field of bss entry, if entry
	 * already exists in bss data base of cfg80211 for that particular BSS
	 * ID. Using cfg80211_inform_bss_frame to update the bss entry instead
	 * of cfg80211_inform_bss, But this call expects mgmt packet as input.
	 * As of now there is no possibility to get the mgmt(probe response)
	 * frame from PE, converting bss_desc to ieee80211_mgmt(probe response)
	 * and passing to cfg80211_inform_bss_frame.
	 */
	struct net_device *dev = pAdapter->dev;
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	struct wiphy *wiphy = wdev->wiphy;
	int chan_no = bss_desc->channelId;
#ifdef WLAN_ENABLE_AGEIE_ON_SCAN_RESULTS
	qcom_ie_age *qie_age = NULL;
	int ie_length =
		GET_IE_LEN_IN_BSS_DESC(bss_desc->length) + sizeof(qcom_ie_age);
#else
	int ie_length = GET_IE_LEN_IN_BSS_DESC(bss_desc->length);
#endif
	const char *ie =
		((ie_length != 0) ? (const char *)&bss_desc->ieFields : NULL);
	unsigned int freq;
	struct ieee80211_channel *chan;
	struct ieee80211_mgmt *mgmt = NULL;
	struct cfg80211_bss *bss_status = NULL;
	size_t frame_len = sizeof(struct ieee80211_mgmt) + ie_length;
	int rssi = 0;
	hdd_context_t *pHddCtx;
	int status;
	struct timespec ts;
	struct hdd_config *cfg_param;

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);
	if (0 != status)
		return NULL;

	cfg_param = pHddCtx->config;
	mgmt = qdf_mem_malloc((sizeof(struct ieee80211_mgmt) + ie_length));
	if (!mgmt) {
		hdd_err("memory allocation failed");
		return NULL;
	}

	memcpy(mgmt->bssid, bss_desc->bssId, ETH_ALEN);

	/* Android does not want the timestamp from the frame.
	 * Instead it wants a monotonic increasing value
	 */
	get_monotonic_boottime(&ts);
	mgmt->u.probe_resp.timestamp =
		((u64) ts.tv_sec * 1000000) + (ts.tv_nsec / 1000);

	mgmt->u.probe_resp.beacon_int = bss_desc->beaconInterval;
	mgmt->u.probe_resp.capab_info = bss_desc->capabilityInfo;

#ifdef WLAN_ENABLE_AGEIE_ON_SCAN_RESULTS
	/* GPS Requirement: need age ie per entry. Using vendor specific. */
	/* Assuming this is the last IE, copy at the end */
	ie_length -= sizeof(qcom_ie_age);
	qie_age = (qcom_ie_age *) (mgmt->u.probe_resp.variable + ie_length);
	qie_age->element_id = QCOM_VENDOR_IE_ID;
	qie_age->len = QCOM_VENDOR_IE_AGE_LEN;
	qie_age->oui_1 = QCOM_OUI1;
	qie_age->oui_2 = QCOM_OUI2;
	qie_age->oui_3 = QCOM_OUI3;
	qie_age->type = QCOM_VENDOR_IE_AGE_TYPE;
	/*
	 * Lowi expects the timestamp of bss in units of 1/10 ms. In driver
	 * all bss related timestamp is in units of ms. Due to this when scan
	 * results are sent to lowi the scan age is high.To address this,
	 * send age in units of 1/10 ms.
	 */
	qie_age->age =
		(uint32_t)(qdf_mc_timer_get_system_time() - bss_desc->received_time)/10;
	qie_age->tsf_delta = bss_desc->tsf_delta;
	memcpy(&qie_age->beacon_tsf, bss_desc->timeStamp,
	       sizeof(qie_age->beacon_tsf));
	memcpy(&qie_age->seq_ctrl, &bss_desc->seq_ctrl,
	       sizeof(qie_age->seq_ctrl));
#endif

	memcpy(mgmt->u.probe_resp.variable, ie, ie_length);
	if (bss_desc->fProbeRsp) {
		mgmt->frame_control |=
			(u16) (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP);
	} else {
		mgmt->frame_control |=
			(u16) (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
	}

	if (chan_no <= ARRAY_SIZE(hdd_channels_2_4_ghz) &&
	    (wiphy->bands[NL80211_BAND_2GHZ] != NULL)) {
		freq =
			ieee80211_channel_to_frequency(chan_no,
						       NL80211_BAND_2GHZ);
	} else if ((chan_no > ARRAY_SIZE(hdd_channels_2_4_ghz))
		   && (wiphy->bands[NL80211_BAND_5GHZ] != NULL)) {
		freq =
			ieee80211_channel_to_frequency(chan_no,
						       NL80211_BAND_5GHZ);
	} else {
		hdd_err("Invalid chan_no %d", chan_no);
		qdf_mem_free(mgmt);
		return NULL;
	}

	chan = __ieee80211_get_channel(wiphy, freq);
	/* When the band is changed on the fly using the GUI, three things are done
	 * 1. scan abort
	 * 2. flush scan results from cache
	 * 3. update the band with the new band user specified (refer to the
	 * hdd_set_band_helper function) as part of the scan abort, message will be
	 * queued to PE and we proceed with flushing and changinh the band.
	 * PE will stop the scanning further and report back the results what ever
	 * it had till now by calling the call back function.
	 * if the time between update band and scandone call back is sufficient
	 * enough the band change reflects in SME, SME validates the channels
	 * and discards the channels correponding to previous band and calls back
	 * with zero bss results. but if the time between band update and scan done
	 * callback is very small then band change will not reflect in SME and SME
	 * reports to HDD all the channels correponding to previous band.this is due
	 * to race condition.but those channels are invalid to the new band and so
	 * this function __ieee80211_get_channel will return NULL.Each time we
	 * report scan result with this pointer null warning kernel trace is printed.
	 * if the scan results contain large number of APs continuosly kernel
	 * warning trace is printed and it will lead to apps watch dog bark.
	 * So drop the bss and continue to next bss.
	 */
	if (chan == NULL) {
		hdd_err("chan pointer is NULL, chan_no: %d freq: %d",
			chan_no, freq);
		qdf_mem_free(mgmt);
		return NULL;
	}

	/* Based on .ini configuration, raw rssi can be reported for bss.
	 * Raw rssi is typically used for estimating power.
	 */

	rssi = (cfg_param->inform_bss_rssi_raw) ? bss_desc->rssi_raw :
			bss_desc->rssi;

	/* Supplicant takes the signal strength in terms of mBm(100*dBm) */
	rssi = QDF_MIN(rssi, 0) * 100;

	hdd_log(LOG1, "BSSID: " MAC_ADDRESS_STR " Channel:%d RSSI:%d TSF %u",
	       MAC_ADDR_ARRAY(mgmt->bssid), chan->center_freq,
	       (int)(rssi / 100),
	       bss_desc->timeStamp[0]);

	bss_status =
		cfg80211_inform_bss_frame(wiphy, chan, mgmt, frame_len, rssi,
					  GFP_KERNEL);
	pHddCtx->beacon_probe_rsp_cnt_per_scan++;
	qdf_mem_free(mgmt);
	return bss_status;
}

/**
 * wlan_hdd_cfg80211_update_bss_db() - update bss database of CF80211
 * @pAdapter: Pointer to adapter
 * @pRoamInfo: Pointer to roam info
 *
 * This function is used to update the BSS data base of CFG8011
 *
 * Return: struct cfg80211_bss pointer
 */
struct cfg80211_bss *wlan_hdd_cfg80211_update_bss_db(hdd_adapter_t *pAdapter,
						     tCsrRoamInfo *pRoamInfo)
{
	tCsrRoamConnectedProfile roamProfile;
	tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
	struct cfg80211_bss *bss = NULL;

	memset(&roamProfile, 0, sizeof(tCsrRoamConnectedProfile));
	sme_roam_get_connect_profile(hHal, pAdapter->sessionId, &roamProfile);

	if (NULL != roamProfile.pBssDesc) {
		bss = wlan_hdd_cfg80211_inform_bss_frame(pAdapter,
							 roamProfile.pBssDesc);

		if (NULL == bss)
			hdd_notice("wlan_hdd_cfg80211_inform_bss_frame returned NULL");

		sme_roam_free_connect_profile(&roamProfile);
	} else {
		hdd_err("roamProfile.pBssDesc is NULL");
	}
	return bss;
}
/**
 * wlan_hdd_cfg80211_update_bss() - update bss
 * @wiphy: Pointer to wiphy
 * @pAdapter: Pointer to adapter
 * @scan_time: scan request timestamp
 *
 * Return: zero if success, non-zero otherwise
 */
int wlan_hdd_cfg80211_update_bss(struct wiphy *wiphy,
				 hdd_adapter_t *pAdapter,
				 uint32_t scan_time)
{
	tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
	tCsrScanResultInfo *pScanResult;
	QDF_STATUS status = 0;
	tScanResultHandle pResult;
	struct cfg80211_bss *bss_status = NULL;
	hdd_context_t *pHddCtx;
	int ret;

	ENTER();

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_UPDATE_BSS,
			 NO_SESSION, pAdapter->sessionId));

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	ret = wlan_hdd_validate_context(pHddCtx);
	if (0 != ret)
		return ret;

	/* start getting scan results and populate cgf80211 BSS database */
	status = sme_scan_get_result(hHal, pAdapter->sessionId, NULL, &pResult);

	/* no scan results */
	if (NULL == pResult) {
		hdd_err("No scan result Status %d", status);
		return -EAGAIN;
	}

	pScanResult = sme_scan_result_get_first(hHal, pResult);

	while (pScanResult) {
		/*
		 * - cfg80211_inform_bss() is not updating ie field of bss
		 * entry if entry already exists in bss data base of cfg80211
		 * for that particular BSS ID.  Using cfg80211_inform_bss_frame
		 * to update thebss entry instead of cfg80211_inform_bss,
		 * But this call expects mgmt packet as input. As of now
		 * there is no possibility to get the mgmt(probe response)
		 * frame from PE, converting bss_desc to
		 * ieee80211_mgmt(probe response) and passing to c
		 * fg80211_inform_bss_frame.
		 * - Update BSS only if beacon timestamp is later than
		 * scan request timestamp.
		 */
		if ((scan_time == 0) ||
			(scan_time <
				pScanResult->BssDescriptor.received_time)) {
			bss_status =
				wlan_hdd_cfg80211_inform_bss_frame(pAdapter,
						&pScanResult->BssDescriptor);

			if (NULL == bss_status) {
				hdd_info("NULL returned by cfg80211_inform_bss_frame");
			} else {
				cfg80211_put_bss(
					wiphy,
					bss_status);
			}
		} else {
			hdd_info("BSSID: " MAC_ADDRESS_STR " Skipped",
			MAC_ADDR_ARRAY(pScanResult->BssDescriptor.bssId));
		}
		pScanResult = sme_scan_result_get_next(hHal, pResult);
	}

	sme_scan_result_purge(hHal, pResult);
	/*
	 * For SAP mode, scan is invoked by hostapd during SAP start
	 * if hostapd is restarted, we need to flush previous scan
	 * result so that it will reflect environment change
	 */
	if (pAdapter->device_mode == QDF_SAP_MODE
#ifdef FEATURE_WLAN_AP_AP_ACS_OPTIMIZE
		&& pHddCtx->skip_acs_scan_status != eSAP_SKIP_ACS_SCAN
#endif
	)
		sme_scan_flush_result(hHal);

	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_pmksa_candidate_notify() - notify a new PMSKA candidate
 * @pAdapter: Pointer to adapter
 * @pRoamInfo: Pointer to roam info
 * @index: Index
 * @preauth: Preauth flag
 *
 * This function is used to notify the supplicant of a new PMKSA candidate.
 *
 * Return: 0 for success, non-zero for failure
 */
int wlan_hdd_cfg80211_pmksa_candidate_notify(hdd_adapter_t *pAdapter,
					     tCsrRoamInfo *pRoamInfo,
					     int index, bool preauth)
{
	struct net_device *dev = pAdapter->dev;
	hdd_context_t *pHddCtx = (hdd_context_t *) pAdapter->pHddCtx;

	ENTER();
	hdd_notice("is going to notify supplicant of:");

	if (NULL == pRoamInfo) {
		hdd_alert("pRoamInfo is NULL");
		return -EINVAL;
	}

	if (true == hdd_is_okc_mode_enabled(pHddCtx)) {
		hdd_notice(MAC_ADDRESS_STR,
		       MAC_ADDR_ARRAY(pRoamInfo->bssid.bytes));
		cfg80211_pmksa_candidate_notify(dev, index,
						pRoamInfo->bssid.bytes,
						preauth, GFP_KERNEL);
	}
	return 0;
}

#ifdef FEATURE_WLAN_LFR_METRICS
/**
 * wlan_hdd_cfg80211_roam_metrics_preauth() - roam metrics preauth
 * @pAdapter: Pointer to adapter
 * @pRoamInfo: Pointer to roam info
 *
 * 802.11r/LFR metrics reporting function to report preauth initiation
 *
 * Return: QDF status
 */
#define MAX_LFR_METRICS_EVENT_LENGTH 100
QDF_STATUS wlan_hdd_cfg80211_roam_metrics_preauth(hdd_adapter_t *pAdapter,
						  tCsrRoamInfo *pRoamInfo)
{
	unsigned char metrics_notification[MAX_LFR_METRICS_EVENT_LENGTH + 1];
	union iwreq_data wrqu;

	ENTER();

	if (NULL == pAdapter) {
		hdd_err("pAdapter is NULL!");
		return QDF_STATUS_E_FAILURE;
	}

	/* create the event */
	memset(&wrqu, 0, sizeof(wrqu));
	memset(metrics_notification, 0, sizeof(metrics_notification));

	wrqu.data.pointer = metrics_notification;
	wrqu.data.length = scnprintf(metrics_notification,
				     sizeof(metrics_notification),
				     "QCOM: LFR_PREAUTH_INIT " MAC_ADDRESS_STR,
				     MAC_ADDR_ARRAY(pRoamInfo->bssid));

	wireless_send_event(pAdapter->dev, IWEVCUSTOM, &wrqu,
			    metrics_notification);

	EXIT();

	return QDF_STATUS_SUCCESS;
}

/**
 * wlan_hdd_cfg80211_roam_metrics_handover() - roam metrics hand over
 * @pAdapter: Pointer to adapter
 * @pRoamInfo: Pointer to roam info
 * @preauth_status: Preauth status
 *
 * 802.11r/LFR metrics reporting function to report handover initiation
 *
 * Return: QDF status
 */
QDF_STATUS
wlan_hdd_cfg80211_roam_metrics_preauth_status(hdd_adapter_t *pAdapter,
					      tCsrRoamInfo *pRoamInfo,
					      bool preauth_status)
{
	unsigned char metrics_notification[MAX_LFR_METRICS_EVENT_LENGTH + 1];
	union iwreq_data wrqu;

	ENTER();

	if (NULL == pAdapter) {
		hdd_err("pAdapter is NULL!");
		return QDF_STATUS_E_FAILURE;
	}

	/* create the event */
	memset(&wrqu, 0, sizeof(wrqu));
	memset(metrics_notification, 0, sizeof(metrics_notification));

	scnprintf(metrics_notification, sizeof(metrics_notification),
		  "QCOM: LFR_PREAUTH_STATUS " MAC_ADDRESS_STR,
		  MAC_ADDR_ARRAY(pRoamInfo->bssid));

	if (1 == preauth_status)
		strlcat(metrics_notification, " true",
				sizeof(metrics_notification));
	else
		strlcat(metrics_notification, " false",
				sizeof(metrics_notification));

	wrqu.data.pointer = metrics_notification;
	wrqu.data.length = strlen(metrics_notification);

	wireless_send_event(pAdapter->dev, IWEVCUSTOM, &wrqu,
			    metrics_notification);

	EXIT();

	return QDF_STATUS_SUCCESS;
}

/**
 * wlan_hdd_cfg80211_roam_metrics_handover() - roam metrics hand over
 * @pAdapter: Pointer to adapter
 * @pRoamInfo: Pointer to roam info
 *
 * 802.11r/LFR metrics reporting function to report handover initiation
 *
 * Return: QDF status
 */
QDF_STATUS wlan_hdd_cfg80211_roam_metrics_handover(hdd_adapter_t *pAdapter,
						   tCsrRoamInfo *pRoamInfo)
{
	unsigned char metrics_notification[MAX_LFR_METRICS_EVENT_LENGTH + 1];
	union iwreq_data wrqu;

	ENTER();

	if (NULL == pAdapter) {
		hdd_err("pAdapter is NULL!");
		return QDF_STATUS_E_FAILURE;
	}

	/* create the event */
	memset(&wrqu, 0, sizeof(wrqu));
	memset(metrics_notification, 0, sizeof(metrics_notification));

	wrqu.data.pointer = metrics_notification;
	wrqu.data.length = scnprintf(metrics_notification,
				     sizeof(metrics_notification),
				     "QCOM: LFR_PREAUTH_HANDOVER "
				     MAC_ADDRESS_STR,
				     MAC_ADDR_ARRAY(pRoamInfo->bssid));

	wireless_send_event(pAdapter->dev, IWEVCUSTOM, &wrqu,
			    metrics_notification);

	EXIT();

	return QDF_STATUS_SUCCESS;
}
#endif

/**
 * hdd_select_cbmode() - select channel bonding mode
 * @pAdapter: Pointer to adapter
 * @operatingChannel: Operating channel
 * @ch_params: channel info struct to populate
 *
 * Return: none
 */
void hdd_select_cbmode(hdd_adapter_t *pAdapter, uint8_t operationChannel,
			struct ch_params_s *ch_params)
{
	hdd_station_ctx_t *station_ctx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	struct hdd_mon_set_ch_info *ch_info = &station_ctx->ch_info;
	uint8_t sec_ch = 0;

	/*
	 * CDS api expects secondary channel for calculating
	 * the channel params
	 */
	if ((ch_params->ch_width == CH_WIDTH_40MHZ) &&
	    (CDS_IS_CHANNEL_24GHZ(operationChannel))) {
		if (operationChannel >= 1 && operationChannel <= 5)
			sec_ch = operationChannel + 4;
		else if (operationChannel >= 6 && operationChannel <= 13)
			sec_ch = operationChannel - 4;
	}

	/* This call decides required channel bonding mode */
	cds_set_channel_params(operationChannel, sec_ch, ch_params);

	if (QDF_GLOBAL_MONITOR_MODE == cds_get_conparam()) {
		eHddDot11Mode hdd_dot11_mode;
		uint8_t iniDot11Mode =
			(WLAN_HDD_GET_CTX(pAdapter))->config->dot11Mode;

		hdd_notice("Dot11Mode is %u", iniDot11Mode);
		switch (iniDot11Mode) {
		case eHDD_DOT11_MODE_AUTO:
		case eHDD_DOT11_MODE_11ac:
		case eHDD_DOT11_MODE_11ac_ONLY:
			if (sme_is_feature_supported_by_fw(DOT11AC))
				hdd_dot11_mode = eHDD_DOT11_MODE_11ac;
			else
				hdd_dot11_mode = eHDD_DOT11_MODE_11n;
			break;
		case eHDD_DOT11_MODE_11n:
		case eHDD_DOT11_MODE_11n_ONLY:
			hdd_dot11_mode = eHDD_DOT11_MODE_11n;
			break;
		default:
			hdd_dot11_mode = iniDot11Mode;
			break;
		}
		ch_info->channel_width = ch_params->ch_width;
		ch_info->phy_mode =
			hdd_cfg_xlate_to_csr_phy_mode(hdd_dot11_mode);
		ch_info->channel = operationChannel;
		ch_info->cb_mode = ch_params->ch_width;
		hdd_info("ch_info width %d, phymode %d channel %d",
			 ch_info->channel_width, ch_info->phy_mode,
			 ch_info->channel);
	}
}

/**
 * wlan_hdd_handle_sap_sta_dfs_conc() - to handle SAP STA DFS conc
 * @adapter: STA adapter
 * @roam_profile: STA roam profile
 *
 * This routine will move SAP from dfs to non-dfs, if sta is coming up.
 *
 * Return: false if sta-sap conc is not allowed, else return true
 */
static bool wlan_hdd_handle_sap_sta_dfs_conc(hdd_adapter_t *adapter,
						tCsrRoamProfile *roam_profile)
{
	hdd_context_t *hdd_ctx;
	hdd_adapter_t *ap_adapter;
	hdd_ap_ctx_t *hdd_ap_ctx;
	hdd_hostapd_state_t *hostapd_state;
	uint8_t channel = 0;
	QDF_STATUS status;

	hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
	if (!hdd_ctx) {
		hdd_err("HDD context is NULL");
		return true;
	}

	ap_adapter = hdd_get_adapter(hdd_ctx, QDF_SAP_MODE);
	/* probably no sap running, no handling required */
	if (ap_adapter == NULL)
		return true;

	/*
	 * sap is not in started state, so it is fine to go ahead with sta.
	 * if sap is currently doing CAC then don't allow sta to go further.
	 */
	if (!test_bit(SOFTAP_BSS_STARTED, &(ap_adapter)->event_flags) &&
	    (hdd_ctx->dev_dfs_cac_status != DFS_CAC_IN_PROGRESS))
		return true;

	if (hdd_ctx->dev_dfs_cac_status == DFS_CAC_IN_PROGRESS) {
		hdd_err("Concurrent SAP is in CAC state, STA is not allowed");
		return false;
	}

	/*
	 * log and return error, if we allow STA to go through, we don't
	 * know what is going to happen better stop sta connection
	 */
	hdd_ap_ctx = WLAN_HDD_GET_AP_CTX_PTR(ap_adapter);
	if (NULL == hdd_ap_ctx) {
		hdd_err("AP context not found");
		return false;
	}

	/* sap is on non-dfs channel, nothing to handle */
	if (!CDS_IS_DFS_CH(hdd_ap_ctx->operatingChannel)) {
		hdd_info("sap is on non-dfs channel, sta is allowed");
		return true;
	}
	/*
	 * find out by looking in to scan cache where sta is going to
	 * connect by passing its roam_profile.
	 */
	status = cds_get_channel_from_scan_result(adapter,
			roam_profile, &channel);

	/*
	 * If the STA's channel is 2.4 GHz, then set pcl with only 2.4 GHz
	 * channels for roaming case.
	 */
	if (CDS_IS_CHANNEL_24GHZ(channel)) {
		hdd_info("sap is on dfs, new sta conn on 2.4 is allowed");
		return true;
	}

	/*
	 * If channel is 0 or DFS then better to call pcl and find out the
	 * best channel. If channel is non-dfs 5 GHz then better move SAP
	 * to STA's channel to make scc, so we have room for 3port MCC
	 * scenario.
	 */
	if ((0 == channel) || CDS_IS_DFS_CH(channel))
		channel = cds_get_nondfs_preferred_channel(CDS_SAP_MODE,
								true);

	hostapd_state = WLAN_HDD_GET_HOSTAP_STATE_PTR(ap_adapter);
	qdf_event_reset(&hostapd_state->qdf_event);
	status = wlansap_set_channel_change_with_csa(
			WLAN_HDD_GET_SAP_CTX_PTR(ap_adapter), channel,
			hdd_ap_ctx->sapConfig.ch_width_orig);

	if (QDF_STATUS_SUCCESS != status) {
		hdd_err("Set channel with CSA IE failed, can't allow STA");
		return false;
	}

	/*
	 * wait here for SAP to finish the channel switch. When channel
	 * switch happens, SAP sends few beacons with CSA_IE. After
	 * successfully Transmission of those beacons, it will move its
	 * state from started to disconnected and move to new channel.
	 * once it moves to new channel, sap again moves its state
	 * machine from disconnected to started and set this event.
	 * wait for 10 secs to finish this.
	 */
	status = qdf_wait_single_event(&hostapd_state->qdf_event, 10000);
	if (!QDF_IS_STATUS_SUCCESS(status)) {
		hdd_err("wait for qdf_event failed, STA not allowed!!");
		return false;
	}

	return true;
}

/**
 * wlan_hdd_cfg80211_connect_start() - to start the association process
 * @pAdapter: Pointer to adapter
 * @ssid: Pointer to ssid
 * @ssid_len: Length of ssid
 * @bssid: Pointer to bssid
 * @bssid_hint: Pointer to bssid hint
 * @operatingChannel: Operating channel
 * @ch_width: channel width. this is needed only for IBSS
 *
 * This function is used to start the association process
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_connect_start(hdd_adapter_t *pAdapter,
				    const u8 *ssid, size_t ssid_len,
				    const u8 *bssid, const u8 *bssid_hint,
				    u8 operatingChannel,
				    enum nl80211_chan_width ch_width)
{
	int status = 0;
	QDF_STATUS qdf_status;
	hdd_wext_state_t *pWextState;
	hdd_context_t *pHddCtx;
	hdd_station_ctx_t *hdd_sta_ctx;
	uint32_t roamId;
	tCsrRoamProfile *pRoamProfile;
	eCsrAuthType RSNAuthType;
	tSmeConfigParams *sme_config;
	uint8_t channel = 0;

	ENTER();

	pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

	status = wlan_hdd_validate_context(pHddCtx);
	if (status)
		goto ret_status;

	if (SIR_MAC_MAX_SSID_LENGTH < ssid_len) {
		hdd_err("wrong SSID len");
		status = -EINVAL;
		goto ret_status;
	}

	if (true == cds_is_connection_in_progress()) {
		hdd_err("Connection refused: conn in progress");
		status = -EINVAL;
		goto ret_status;
	}

	pRoamProfile = &pWextState->roamProfile;
	qdf_mem_zero(&hdd_sta_ctx->conn_info.conn_flag,
		     sizeof(hdd_sta_ctx->conn_info.conn_flag));

	if (pRoamProfile) {
		hdd_station_ctx_t *pHddStaCtx;
		pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

		/* Restart the opportunistic timer
		 *
		 * If hw_mode_change_in_progress is true, then wait
		 * till firmware sends the callback for hw_mode change.
		 *
		 * Else set connect_in_progress as true and proceed.
		 */
		cds_restart_opportunistic_timer(false);
		if (cds_is_hw_mode_change_in_progress()) {
			status = qdf_wait_for_connection_update();
			if (!QDF_IS_STATUS_SUCCESS(status)) {
				hdd_err("qdf wait for event failed!!");
				status = -EINVAL;
				goto ret_status;
			}
		}
		cds_set_connection_in_progress(true);

		if (HDD_WMM_USER_MODE_NO_QOS ==
		    (WLAN_HDD_GET_CTX(pAdapter))->config->WmmMode) {
			/*QoS not enabled in cfg file */
			pRoamProfile->uapsd_mask = 0;
		} else {
			/*QoS enabled, update uapsd mask from cfg file */
			pRoamProfile->uapsd_mask =
				(WLAN_HDD_GET_CTX(pAdapter))->config->UapsdMask;
		}

		pRoamProfile->SSIDs.numOfSSIDs = 1;
		pRoamProfile->SSIDs.SSIDList->SSID.length = ssid_len;
		qdf_mem_zero(pRoamProfile->SSIDs.SSIDList->SSID.ssId,
			     sizeof(pRoamProfile->SSIDs.SSIDList->SSID.ssId));
		qdf_mem_copy((void *)(pRoamProfile->SSIDs.SSIDList->SSID.ssId),
			     ssid, ssid_len);

		pRoamProfile->do_not_roam = !pAdapter->fast_roaming_allowed;
		/* cleanup bssid hint */
		qdf_mem_zero(pRoamProfile->bssid_hint.bytes,
			QDF_MAC_ADDR_SIZE);
		qdf_mem_zero((void *)(pRoamProfile->BSSIDs.bssid),
			QDF_MAC_ADDR_SIZE);

		if (bssid) {
			pRoamProfile->BSSIDs.numOfBSSIDs = 1;
			pRoamProfile->do_not_roam = true;
			qdf_mem_copy((void *)(pRoamProfile->BSSIDs.bssid),
				     bssid, QDF_MAC_ADDR_SIZE);
			/*
			 * Save BSSID in seperate variable as
			 * pRoamProfile's BSSID is getting zeroed out in the
			 * association process. In case of join failure
			 * we should send valid BSSID to supplicant
			 */
			qdf_mem_copy((void *)(pWextState->req_bssId.bytes),
					bssid, QDF_MAC_ADDR_SIZE);
			hdd_info("bssid is given by upper layer %pM", bssid);
		} else if (bssid_hint) {
			qdf_mem_copy(pRoamProfile->bssid_hint.bytes,
				bssid_hint, QDF_MAC_ADDR_SIZE);
			/*
			 * Save BSSID in a separate variable as
			 * pRoamProfile's BSSID is getting zeroed out in the
			 * association process. In case of join failure
			 * we should send valid BSSID to supplicant
			 */
			qdf_mem_copy((void *)(pWextState->req_bssId.bytes),
					bssid_hint, QDF_MAC_ADDR_SIZE);
			hdd_info("bssid_hint is given by upper layer %pM",
					bssid_hint);
		}

		hdd_notice("Connect to SSID: %.*s operating Channel: %u",
		       pRoamProfile->SSIDs.SSIDList->SSID.length,
		       pRoamProfile->SSIDs.SSIDList->SSID.ssId,
		       operatingChannel);

		if ((IW_AUTH_WPA_VERSION_WPA == pWextState->wpaVersion) ||
		    (IW_AUTH_WPA_VERSION_WPA2 == pWextState->wpaVersion)) {
			hdd_set_genie_to_csr(pAdapter, &RSNAuthType);
			hdd_set_csr_auth_type(pAdapter, RSNAuthType);
		}
#ifdef FEATURE_WLAN_WAPI
		if (pAdapter->wapi_info.nWapiMode) {
			hdd_notice("Setting WAPI AUTH Type and Encryption Mode values");
			switch (pAdapter->wapi_info.wapiAuthMode) {
			case WAPI_AUTH_MODE_PSK:
			{
				hdd_notice("WAPI AUTH TYPE: PSK: %d",
				       pAdapter->wapi_info.wapiAuthMode);
				pRoamProfile->AuthType.authType[0] =
					eCSR_AUTH_TYPE_WAPI_WAI_PSK;
				break;
			}
			case WAPI_AUTH_MODE_CERT:
			{
				hdd_notice("WAPI AUTH TYPE: CERT: %d",
				       pAdapter->wapi_info.wapiAuthMode);
				pRoamProfile->AuthType.authType[0] =
					eCSR_AUTH_TYPE_WAPI_WAI_CERTIFICATE;
				break;
			}
			} /* End of switch */
			if (pAdapter->wapi_info.wapiAuthMode ==
			    WAPI_AUTH_MODE_PSK
			    || pAdapter->wapi_info.wapiAuthMode ==
			    WAPI_AUTH_MODE_CERT) {
				hdd_notice("WAPI PAIRWISE/GROUP ENCRYPTION: WPI");
				pRoamProfile->AuthType.numEntries = 1;
				pRoamProfile->EncryptionType.numEntries = 1;
				pRoamProfile->EncryptionType.encryptionType[0] =
					eCSR_ENCRYPT_TYPE_WPI;
				pRoamProfile->mcEncryptionType.numEntries = 1;
				pRoamProfile->mcEncryptionType.
				encryptionType[0] = eCSR_ENCRYPT_TYPE_WPI;
			}
		}
#endif
#ifdef WLAN_FEATURE_GTK_OFFLOAD
		/* Initializing gtkOffloadReqParams */
		if ((QDF_STA_MODE == pAdapter->device_mode) ||
		    (QDF_P2P_CLIENT_MODE == pAdapter->device_mode)) {
			memset(&pHddStaCtx->gtkOffloadReqParams, 0,
			       sizeof(tSirGtkOffloadParams));
			pHddStaCtx->gtkOffloadReqParams.ulFlags =
				GTK_OFFLOAD_DISABLE;
		}
#endif
		pRoamProfile->csrPersona = pAdapter->device_mode;

		if (operatingChannel) {
			pRoamProfile->ChannelInfo.ChannelList =
				&operatingChannel;
			pRoamProfile->ChannelInfo.numOfChannels = 1;
		} else {
			pRoamProfile->ChannelInfo.ChannelList = NULL;
			pRoamProfile->ChannelInfo.numOfChannels = 0;
		}
		if ((QDF_IBSS_MODE == pAdapter->device_mode)
		    && operatingChannel) {
			/*
			 * Need to post the IBSS power save parameters
			 * to WMA. WMA will configure this parameters
			 * to firmware if power save is enabled by the
			 * firmware.
			 */
			status = hdd_set_ibss_power_save_params(pAdapter);

			if (QDF_STATUS_SUCCESS != status) {
				hdd_err("Set IBSS Power Save Params Failed");
				status = -EINVAL;
				goto conn_failure;
			}
			pRoamProfile->ch_params.ch_width =
				hdd_map_nl_chan_width(ch_width);
			/*
			 * In IBSS mode while operating in 2.4 GHz,
			 * the device supports only 20 MHz.
			 */
			if (CDS_IS_CHANNEL_24GHZ(operatingChannel))
				pRoamProfile->ch_params.ch_width =
					CH_WIDTH_20MHZ;
			hdd_select_cbmode(pAdapter, operatingChannel,
					  &pRoamProfile->ch_params);
		}
		/*
		 * if MFPEnabled is set but the peer AP is non-PMF i.e 80211w=2
		 * or pmf=2 is an explicit configuration in the supplicant
		 * configuration, drop the connection request.
		 */
		if (pWextState->roamProfile.MFPEnabled &&
		    !(pWextState->roamProfile.MFPRequired ||
		    pWextState->roamProfile.MFPCapable)) {
			hdd_err("Drop connect req as supplicant has indicated PMF req for a non-PMF peer. MFPEnabled %d MFPRequired %d MFPCapable %d",
					pWextState->roamProfile.MFPEnabled,
					pWextState->roamProfile.MFPRequired,
					pWextState->roamProfile.MFPCapable);

			status = -EINVAL;
			goto conn_failure;
		}

		/*
		 * After 8-way handshake supplicant should give the scan command
		 * in that it update the additional IEs, But because of scan
		 * enhancements, the supplicant is not issuing the scan command
		 * now. So the unicast frames which are sent from the host are
		 * not having the additional IEs. If it is P2P CLIENT and there
		 * is no additional IE present in roamProfile, then use the
		 * addtional IE form scan_info
		 */

		if ((pAdapter->device_mode == QDF_P2P_CLIENT_MODE) &&
		    (!pRoamProfile->pAddIEScan)) {
			pRoamProfile->pAddIEScan =
				&pAdapter->scan_info.scanAddIE.addIEdata[0];
			pRoamProfile->nAddIEScanLength =
				pAdapter->scan_info.scanAddIE.length;
		}
		/*
		 * When policy manager is enabled from ini file, we shouldn't
		 * check for other concurrency rules.
		 */
		if (wma_is_hw_dbs_capable() == false) {
			cds_handle_conc_rule1(pAdapter, pRoamProfile);
			if (true != cds_handle_conc_rule2(
					pAdapter, pRoamProfile, &roamId)) {
				status = 0;
				goto conn_failure;
			}
		}

		if ((wma_is_hw_dbs_capable() == true) &&
			(false == wlan_hdd_handle_sap_sta_dfs_conc(pAdapter,
				pRoamProfile))) {
			hdd_err("sap-sta conc will fail, can't allow sta");
			hdd_conn_set_connection_state(pAdapter,
					eConnectionState_NotConnected);
			status = -ENOMEM;
			goto conn_failure;
		}

		sme_config = qdf_mem_malloc(sizeof(*sme_config));
		if (!sme_config) {
			hdd_err("unable to allocate sme_config");
			hdd_conn_set_connection_state(pAdapter,
					eConnectionState_NotConnected);
			status = -ENOMEM;
			goto conn_failure;
		}
		sme_get_config_param(pHddCtx->hHal, sme_config);
		/* These values are not sessionized. So, any change in these SME
		 * configs on an older or parallel interface will affect the
		 * cb mode. So, restoring the default INI params before starting
		 * interfaces such as sta, cli etc.,
		 */
		sme_config->csrConfig.channelBondingMode5GHz =
			pHddCtx->config->nChannelBondingMode5GHz;
		sme_config->csrConfig.channelBondingMode24GHz =
			pHddCtx->config->nChannelBondingMode24GHz;
		sme_update_config(pHddCtx->hHal, sme_config);
		qdf_mem_free(sme_config);
		/*
		 * Change conn_state to connecting before sme_roam_connect(),
		 * because sme_roam_connect() has a direct path to call
		 * hdd_sme_roam_callback(), which will change the conn_state
		 * If direct path, conn_state will be accordingly changed to
		 * NotConnected or Associated by either
		 * hdd_association_completion_handler() or
		 * hdd_dis_connect_handler() in sme_RoamCallback()if
		 * sme_RomConnect is to be queued,
		 * Connecting state will remain until it is completed.
		 *
		 * If connection state is not changed, connection state will
		 * remain in eConnectionState_NotConnected state.
		 * In hdd_association_completion_handler, "hddDisconInProgress"
		 * is set to true if conn state is
		 * eConnectionState_NotConnected.
		 * If "hddDisconInProgress" is set to true then cfg80211 layer
		 * is not informed of connect result indication which
		 * is an issue.
		 */
		if (QDF_STA_MODE == pAdapter->device_mode ||
			QDF_P2P_CLIENT_MODE == pAdapter->device_mode)
			hdd_conn_set_connection_state(pAdapter,
			eConnectionState_Connecting);

		qdf_runtime_pm_prevent_suspend(pAdapter->connect_rpm_ctx.
					       connect);
		qdf_status = sme_roam_connect(WLAN_HDD_GET_HAL_CTX(pAdapter),
					  pAdapter->sessionId, pRoamProfile,
					  &roamId);

		if ((QDF_STATUS_SUCCESS != qdf_status) &&
		    (QDF_STA_MODE == pAdapter->device_mode ||
		     QDF_P2P_CLIENT_MODE == pAdapter->device_mode)) {
			hdd_err("sme_roam_connect (session %d) failed with "
			       "qdf_status %d. -> NotConnected",
			       pAdapter->sessionId, qdf_status);
			status = qdf_status_to_os_return(qdf_status);
			/* change back to NotAssociated */
			hdd_conn_set_connection_state(pAdapter,
						      eConnectionState_NotConnected);
			qdf_runtime_pm_allow_suspend(pAdapter->connect_rpm_ctx.
						     connect);
		}

		/* Reset connect_in_progress */
		cds_set_connection_in_progress(false);

		pRoamProfile->ChannelInfo.ChannelList = NULL;
		pRoamProfile->ChannelInfo.numOfChannels = 0;

		if ((QDF_STA_MODE == pAdapter->device_mode)
		    && wma_is_current_hwmode_dbs() &&
		    !wma_is_hw_dbs_2x2_capable()) {
			cds_get_channel_from_scan_result(pAdapter,
					pRoamProfile, &channel);
			hdd_info("Move to single MAC mode(optimization) if applicable");
			if (channel)
				cds_checkn_update_hw_mode_single_mac_mode
					(channel);
		}

	} else {
		hdd_err("No valid Roam profile");
		status = -EINVAL;
	}
	goto ret_status;

conn_failure:
	/* Reset connect_in_progress */
	cds_set_connection_in_progress(false);

ret_status:
	EXIT();
	return status;
}

/**
 * wlan_hdd_cfg80211_set_auth_type() - set auth type
 * @pAdapter: Pointer to adapter
 * @auth_type: Auth type
 *
 * This function is used to set the authentication type (OPEN/SHARED).
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_auth_type(hdd_adapter_t *pAdapter,
					   enum nl80211_auth_type auth_type)
{
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

	/*set authentication type */
	switch (auth_type) {
	case NL80211_AUTHTYPE_AUTOMATIC:
		hdd_notice("set authentication type to AUTOSWITCH");
		pHddStaCtx->conn_info.authType = eCSR_AUTH_TYPE_AUTOSWITCH;
		break;

	case NL80211_AUTHTYPE_OPEN_SYSTEM:
	case NL80211_AUTHTYPE_FT:
		hdd_notice("set authentication type to OPEN");
		pHddStaCtx->conn_info.authType = eCSR_AUTH_TYPE_OPEN_SYSTEM;
		break;

	case NL80211_AUTHTYPE_SHARED_KEY:
		hdd_notice("set authentication type to SHARED");
		pHddStaCtx->conn_info.authType = eCSR_AUTH_TYPE_SHARED_KEY;
		break;
#ifdef FEATURE_WLAN_ESE
	case NL80211_AUTHTYPE_NETWORK_EAP:
		hdd_notice("set authentication type to CCKM WPA");
		pHddStaCtx->conn_info.authType = eCSR_AUTH_TYPE_CCKM_WPA;
		break;
#endif

	default:
		hdd_err("Unsupported authentication type %d", auth_type);
		pHddStaCtx->conn_info.authType = eCSR_AUTH_TYPE_UNKNOWN;
		return -EINVAL;
	}

	pWextState->roamProfile.AuthType.authType[0] =
		pHddStaCtx->conn_info.authType;
	return 0;
}

/**
 * wlan_hdd_set_akm_suite() - set key management type
 * @pAdapter: Pointer to adapter
 * @key_mgmt: Key management type
 *
 * This function is used to set the key mgmt type(PSK/8021x).
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_set_akm_suite(hdd_adapter_t *pAdapter, u32 key_mgmt)
{
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);

#define WLAN_AKM_SUITE_8021X_SHA256 0x000FAC05
#define WLAN_AKM_SUITE_PSK_SHA256   0x000FAC06
	/*set key mgmt type */
	switch (key_mgmt) {
	case WLAN_AKM_SUITE_PSK:
	case WLAN_AKM_SUITE_PSK_SHA256:
	case WLAN_AKM_SUITE_FT_PSK:
		hdd_notice("setting key mgmt type to PSK");
		pWextState->authKeyMgmt |= IW_AUTH_KEY_MGMT_PSK;
		break;

	case WLAN_AKM_SUITE_8021X_SHA256:
	case WLAN_AKM_SUITE_8021X:
	case WLAN_AKM_SUITE_FT_8021X:
		hdd_notice("setting key mgmt type to 8021x");
		pWextState->authKeyMgmt |= IW_AUTH_KEY_MGMT_802_1X;
		break;
#ifdef FEATURE_WLAN_ESE
#define WLAN_AKM_SUITE_CCKM         0x00409600  /* Should be in ieee802_11_defs.h */
#define IW_AUTH_KEY_MGMT_CCKM       8   /* Should be in linux/wireless.h */
	case WLAN_AKM_SUITE_CCKM:
		hdd_notice("setting key mgmt type to CCKM");
		pWextState->authKeyMgmt |= IW_AUTH_KEY_MGMT_CCKM;
		break;
#endif
#ifndef WLAN_AKM_SUITE_OSEN
#define WLAN_AKM_SUITE_OSEN         0x506f9a01  /* Should be in ieee802_11_defs.h */
#endif
	case WLAN_AKM_SUITE_OSEN:
		hdd_notice("setting key mgmt type to OSEN");
		pWextState->authKeyMgmt |= IW_AUTH_KEY_MGMT_802_1X;
		break;

	default:
		hdd_err("Unsupported key mgmt type %d", key_mgmt);
		return -EINVAL;

	}
	return 0;
}

/**
 * wlan_hdd_cfg80211_set_cipher() - set encryption type
 * @pAdapter: Pointer to adapter
 * @cipher: Cipher type
 * @ucast: Unicast flag
 *
 * This function is used to set the encryption type
 * (NONE/WEP40/WEP104/TKIP/CCMP).
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_cipher(hdd_adapter_t *pAdapter,
					u32 cipher, bool ucast)
{
	eCsrEncryptionType encryptionType = eCSR_ENCRYPT_TYPE_NONE;
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

	if (!cipher) {
		hdd_info("received cipher %d - considering none", cipher);
		encryptionType = eCSR_ENCRYPT_TYPE_NONE;
	} else {

		/*set encryption method */
		switch (cipher) {
		case IW_AUTH_CIPHER_NONE:
			encryptionType = eCSR_ENCRYPT_TYPE_NONE;
			break;

		case WLAN_CIPHER_SUITE_WEP40:
			encryptionType = eCSR_ENCRYPT_TYPE_WEP40;
			break;

		case WLAN_CIPHER_SUITE_WEP104:
			encryptionType = eCSR_ENCRYPT_TYPE_WEP104;
			break;

		case WLAN_CIPHER_SUITE_TKIP:
			encryptionType = eCSR_ENCRYPT_TYPE_TKIP;
			break;

		case WLAN_CIPHER_SUITE_CCMP:
			encryptionType = eCSR_ENCRYPT_TYPE_AES;
			break;
#ifdef FEATURE_WLAN_WAPI
		case WLAN_CIPHER_SUITE_SMS4:
			encryptionType = eCSR_ENCRYPT_TYPE_WPI;
			break;
#endif

#ifdef FEATURE_WLAN_ESE
		case WLAN_CIPHER_SUITE_KRK:
			encryptionType = eCSR_ENCRYPT_TYPE_KRK;
			break;
#ifdef WLAN_FEATURE_ROAM_OFFLOAD
		case WLAN_CIPHER_SUITE_BTK:
			encryptionType = eCSR_ENCRYPT_TYPE_BTK;
			break;
#endif
#endif
		default:
			hdd_err("Unsupported cipher type %d", cipher);
			return -EOPNOTSUPP;
		}
	}

	if (ucast) {
		hdd_notice("setting unicast cipher type to %d", encryptionType);
		pHddStaCtx->conn_info.ucEncryptionType = encryptionType;
		pWextState->roamProfile.EncryptionType.numEntries = 1;
		pWextState->roamProfile.EncryptionType.encryptionType[0] =
			encryptionType;
	} else {
		hdd_notice("setting mcast cipher type to %d", encryptionType);
		pHddStaCtx->conn_info.mcEncryptionType = encryptionType;
		pWextState->roamProfile.mcEncryptionType.numEntries = 1;
		pWextState->roamProfile.mcEncryptionType.encryptionType[0] =
			encryptionType;
	}

	return 0;
}

/**
 * wlan_hdd_add_assoc_ie() - Add Assoc IE to roamProfile
 * @wext_state: Pointer to wext state
 * @gen_ie: Pointer to IE data
 * @len: length of IE data
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_add_assoc_ie(hdd_wext_state_t *wext_state,
				const uint8_t *gen_ie, uint16_t len)
{
	uint16_t cur_add_ie_len =
		wext_state->assocAddIE.length;

	if (SIR_MAC_MAX_ADD_IE_LENGTH <
			(wext_state->assocAddIE.length + len)) {
		hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
		QDF_ASSERT(0);
		return -ENOMEM;
	}
	memcpy(wext_state->assocAddIE.addIEdata +
			cur_add_ie_len, gen_ie, len);
	wext_state->assocAddIE.length += len;

	wext_state->roamProfile.pAddIEAssoc =
		wext_state->assocAddIE.addIEdata;
	wext_state->roamProfile.nAddIEAssocLength =
		wext_state->assocAddIE.length;
	return 0;
}

/**
 * wlan_hdd_cfg80211_set_ie() - set IEs
 * @pAdapter: Pointer to adapter
 * @ie: Pointer ot ie
 * @ie: IE length
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_ie(hdd_adapter_t *pAdapter, const uint8_t *ie,
			     size_t ie_len)
{
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	const uint8_t *genie = ie;
	uint16_t remLen = ie_len;
#ifdef FEATURE_WLAN_WAPI
	uint32_t akmsuite[MAX_NUM_AKM_SUITES];
	u16 *tmp;
	uint16_t akmsuiteCount;
	int *akmlist;
#endif
	int status;

	/* clear previous assocAddIE */
	pWextState->assocAddIE.length = 0;
	pWextState->roamProfile.bWPSAssociation = false;
	pWextState->roamProfile.bOSENAssociation = false;

	while (remLen >= 2) {
		uint16_t eLen = 0;
		uint8_t elementId;
		elementId = *genie++;
		eLen = *genie++;
		remLen -= 2;

		hdd_notice("IE[0x%X], LEN[%d]", elementId, eLen);

		switch (elementId) {
		case DOT11F_EID_WPA:
			if (4 > eLen) { /* should have at least OUI which is 4 bytes so extra 2 bytes not needed */
				hdd_err("Invalid WPA IE");
				return -EINVAL;
			} else if (0 ==
				   memcmp(&genie[0], "\x00\x50\xf2\x04", 4)) {
				uint16_t curAddIELen =
					pWextState->assocAddIE.length;
				hdd_notice("Set WPS IE(len %d)", eLen + 2);

				if (SIR_MAC_MAX_ADD_IE_LENGTH <
				    (pWextState->assocAddIE.length + eLen)) {
					hdd_err("Cannot accommodate assocAddIE. Need bigger buffer space");
					QDF_ASSERT(0);
					return -ENOMEM;
				}
				/* WSC IE is saved to Additional IE ; it should be accumulated to handle WPS IE + P2P IE */
				memcpy(pWextState->assocAddIE.addIEdata +
				       curAddIELen, genie - 2, eLen + 2);
				pWextState->assocAddIE.length += eLen + 2;

				pWextState->roamProfile.bWPSAssociation = true;
				pWextState->roamProfile.pAddIEAssoc =
					pWextState->assocAddIE.addIEdata;
				pWextState->roamProfile.nAddIEAssocLength =
					pWextState->assocAddIE.length;
			} else if (0 == memcmp(&genie[0], "\x00\x50\xf2", 3)) {
				hdd_notice("Set WPA IE (len %d)", eLen + 2);
				memset(pWextState->WPARSNIE, 0,
				       MAX_WPA_RSN_IE_LEN);
				memcpy(pWextState->WPARSNIE, genie - 2,
				       (eLen + 2));
				pWextState->roamProfile.pWPAReqIE =
					pWextState->WPARSNIE;
				pWextState->roamProfile.nWPAReqIELength = eLen + 2;     /* ie_len; */
			} else if ((0 == memcmp(&genie[0], P2P_OUI_TYPE,
						P2P_OUI_TYPE_SIZE))) {
				uint16_t curAddIELen =
					pWextState->assocAddIE.length;
				hdd_notice("Set P2P IE(len %d)", eLen + 2);

				if (SIR_MAC_MAX_ADD_IE_LENGTH <
				    (pWextState->assocAddIE.length + eLen)) {
					hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
					QDF_ASSERT(0);
					return -ENOMEM;
				}
				/* P2P IE is saved to Additional IE ; it should be accumulated to handle WPS IE + P2P IE */
				memcpy(pWextState->assocAddIE.addIEdata +
				       curAddIELen, genie - 2, eLen + 2);
				pWextState->assocAddIE.length += eLen + 2;

				pWextState->roamProfile.pAddIEAssoc =
					pWextState->assocAddIE.addIEdata;
				pWextState->roamProfile.nAddIEAssocLength =
					pWextState->assocAddIE.length;
			}
#ifdef WLAN_FEATURE_WFD
			else if ((0 == memcmp(&genie[0], WFD_OUI_TYPE,
					      WFD_OUI_TYPE_SIZE)) &&
				/* Consider WFD IE, only for P2P Client */
				 (QDF_P2P_CLIENT_MODE ==
				     pAdapter->device_mode)) {
				uint16_t curAddIELen =
					pWextState->assocAddIE.length;
				hdd_notice("Set WFD IE(len %d)", eLen + 2);

				if (SIR_MAC_MAX_ADD_IE_LENGTH <
				    (pWextState->assocAddIE.length + eLen)) {
					hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
					QDF_ASSERT(0);
					return -ENOMEM;
				}
				/* WFD IE is saved to Additional IE ; it should
				 * be accumulated to handle WPS IE + P2P IE +
				 * WFD IE
				 */
				memcpy(pWextState->assocAddIE.addIEdata +
				       curAddIELen, genie - 2, eLen + 2);
				pWextState->assocAddIE.length += eLen + 2;

				pWextState->roamProfile.pAddIEAssoc =
					pWextState->assocAddIE.addIEdata;
				pWextState->roamProfile.nAddIEAssocLength =
					pWextState->assocAddIE.length;
			}
#endif
			/* Appending HS 2.0 Indication Element in Assiciation Request */
			else if ((0 == memcmp(&genie[0], HS20_OUI_TYPE,
					      HS20_OUI_TYPE_SIZE))) {
				uint16_t curAddIELen =
					pWextState->assocAddIE.length;
				hdd_notice("Set HS20 IE(len %d)", eLen + 2);

				if (SIR_MAC_MAX_ADD_IE_LENGTH <
				    (pWextState->assocAddIE.length + eLen)) {
					hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
					QDF_ASSERT(0);
					return -ENOMEM;
				}
				memcpy(pWextState->assocAddIE.addIEdata +
				       curAddIELen, genie - 2, eLen + 2);
				pWextState->assocAddIE.length += eLen + 2;

				pWextState->roamProfile.pAddIEAssoc =
					pWextState->assocAddIE.addIEdata;
				pWextState->roamProfile.nAddIEAssocLength =
					pWextState->assocAddIE.length;
			}
			/* Appending OSEN Information  Element in Assiciation Request */
			else if ((0 == memcmp(&genie[0], OSEN_OUI_TYPE,
					      OSEN_OUI_TYPE_SIZE))) {
				uint16_t curAddIELen =
					pWextState->assocAddIE.length;
				hdd_notice("Set OSEN IE(len %d)", eLen + 2);

				if (SIR_MAC_MAX_ADD_IE_LENGTH <
				    (pWextState->assocAddIE.length + eLen)) {
					hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
					QDF_ASSERT(0);
					return -ENOMEM;
				}
				memcpy(pWextState->assocAddIE.addIEdata +
				       curAddIELen, genie - 2, eLen + 2);
				pWextState->assocAddIE.length += eLen + 2;

				pWextState->roamProfile.bOSENAssociation = true;
				pWextState->roamProfile.pAddIEAssoc =
					pWextState->assocAddIE.addIEdata;
				pWextState->roamProfile.nAddIEAssocLength =
					pWextState->assocAddIE.length;
			} else if ((0 == memcmp(&genie[0], MBO_OUI_TYPE,
							MBO_OUI_TYPE_SIZE))){
				hdd_info("Set MBO IE(len %d)", eLen + 2);
				status = wlan_hdd_add_assoc_ie(pWextState,
							genie - 2, eLen + 2);
				if (status)
					return status;
			} else {
				uint16_t add_ie_len =
					pWextState->assocAddIE.length;

				hdd_info("Set OSEN IE(len %d)", eLen + 2);

				if (SIR_MAC_MAX_ADD_IE_LENGTH <
				    (pWextState->assocAddIE.length + eLen)) {
					hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
					QDF_ASSERT(0);
					return -ENOMEM;
				}

				memcpy(pWextState->assocAddIE.addIEdata +
				       add_ie_len, genie - 2, eLen + 2);
				pWextState->assocAddIE.length += eLen + 2;

				pWextState->roamProfile.pAddIEAssoc =
					pWextState->assocAddIE.addIEdata;
				pWextState->roamProfile.nAddIEAssocLength =
					pWextState->assocAddIE.length;
			}
			break;
		case DOT11F_EID_RSN:
			hdd_notice("Set RSN IE(len %d)", eLen + 2);
			memset(pWextState->WPARSNIE, 0, MAX_WPA_RSN_IE_LEN);
			memcpy(pWextState->WPARSNIE, genie - 2,
			       (eLen + 2));
			pWextState->roamProfile.pRSNReqIE =
				pWextState->WPARSNIE;
			pWextState->roamProfile.nRSNReqIELength = eLen + 2;     /* ie_len; */
			break;
		/*
		 * Appending Extended Capabilities with Interworking bit set
		 * in Assoc Req.
		 *
		 * In assoc req this EXT Cap will only be taken into account if
		 * interworkingService bit is set to 1. Currently
		 * driver is only interested in interworkingService capability
		 * from supplicant. If in future any other EXT Cap info is
		 * required from supplicat, it needs to be handled while
		 * sending Assoc Req in LIM.
		 */
		case DOT11F_EID_EXTCAP:
		{
			uint16_t curAddIELen =
				pWextState->assocAddIE.length;
			hdd_notice("Set Extended CAPS IE(len %d)", eLen + 2);

			if (SIR_MAC_MAX_ADD_IE_LENGTH <
			    (pWextState->assocAddIE.length + eLen)) {
				hdd_err("Cannot accommodate assocAddIE Need bigger buffer space");
				QDF_ASSERT(0);
				return -ENOMEM;
			}
			memcpy(pWextState->assocAddIE.addIEdata +
			       curAddIELen, genie - 2, eLen + 2);
			pWextState->assocAddIE.length += eLen + 2;

			pWextState->roamProfile.pAddIEAssoc =
				pWextState->assocAddIE.addIEdata;
			pWextState->roamProfile.nAddIEAssocLength =
				pWextState->assocAddIE.length;
			break;
		}
#ifdef FEATURE_WLAN_WAPI
		case WLAN_EID_WAPI:
			/* Setting WAPI Mode to ON=1 */
			pAdapter->wapi_info.nWapiMode = 1;
			hdd_notice("WAPI MODE IS %u", pAdapter->wapi_info.nWapiMode);
			tmp = (u16 *) ie;
			tmp = tmp + 2;  /* Skip element Id and Len, Version */
			akmsuiteCount = WPA_GET_LE16(tmp);
			tmp = tmp + 1;
			akmlist = (int *)(tmp);
			if (akmsuiteCount <= MAX_NUM_AKM_SUITES) {
				memcpy(akmsuite, akmlist, (4 * akmsuiteCount));
			} else {
				hdd_err("Invalid akmSuite count");
				QDF_ASSERT(0);
				return -EINVAL;
			}

			if (WAPI_PSK_AKM_SUITE == akmsuite[0]) {
				hdd_notice("WAPI AUTH MODE SET TO PSK");
				pAdapter->wapi_info.wapiAuthMode =
					WAPI_AUTH_MODE_PSK;
			}
			if (WAPI_CERT_AKM_SUITE == akmsuite[0]) {
				hdd_notice("WAPI AUTH MODE SET TO CERTIFICATE");
				pAdapter->wapi_info.wapiAuthMode =
					WAPI_AUTH_MODE_CERT;
			}
			break;
#endif
		case DOT11F_EID_SUPPOPERATINGCLASSES:
			{
				hdd_info("Set Supported Operating Classes IE(len %d)", eLen + 2);
				status = wlan_hdd_add_assoc_ie(pWextState,
							genie - 2, eLen + 2);
				if (status)
					return status;
				break;
			}
		default:
			hdd_err("Set UNKNOWN IE %X", elementId);
			/* when Unknown IE is received we break
			 * and continue to the next IE in the buffer
			 */
			break;
		}
		genie += eLen;
		remLen -= eLen;
	}
	return 0;
}

/**
 * hdd_is_wpaie_present() - check for WPA ie
 * @ie: Pointer to ie
 * @ie_len: Ie length
 *
 * Parse the received IE to find the WPA IE
 *
 * Return: true if wpa ie is found else false
 */
static bool hdd_is_wpaie_present(const uint8_t *ie, uint8_t ie_len)
{
	uint8_t eLen = 0;
	uint16_t remLen = ie_len;
	uint8_t elementId = 0;

	while (remLen >= 2) {
		elementId = *ie++;
		eLen = *ie++;
		remLen -= 2;
		if (eLen > remLen) {
			hdd_err("IE length is wrong %d", eLen);
			return false;
		}
		if ((elementId == DOT11F_EID_WPA) && (remLen > 5)) {
			/* OUI - 0x00 0X50 0XF2
			 * WPA Information Element - 0x01
			 * WPA version - 0x01
			 */
			if (0 == memcmp(&ie[0], "\x00\x50\xf2\x01\x01", 5))
				return true;
		}
		ie += eLen;
		remLen -= eLen;
	}
	return false;
}

/**
 * wlan_hdd_cfg80211_set_privacy() - set security parameters during connection
 * @pAdapter: Pointer to adapter
 * @req: Pointer to security parameters
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_privacy(hdd_adapter_t *pAdapter,
					 struct cfg80211_connect_params *req)
{
	int status = 0;
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	ENTER();

	/*set wpa version */
	pWextState->wpaVersion = IW_AUTH_WPA_VERSION_DISABLED;

	if (req->crypto.wpa_versions) {
		if (NL80211_WPA_VERSION_1 == req->crypto.wpa_versions) {
			pWextState->wpaVersion = IW_AUTH_WPA_VERSION_WPA;
		} else if (NL80211_WPA_VERSION_2 == req->crypto.wpa_versions) {
			pWextState->wpaVersion = IW_AUTH_WPA_VERSION_WPA2;
		}
	}

	hdd_notice("set wpa version to %d", pWextState->wpaVersion);

	/*set authentication type */
	status = wlan_hdd_cfg80211_set_auth_type(pAdapter, req->auth_type);

	if (0 > status) {
		hdd_err("failed to set authentication type ");
		return status;
	}

	/*set key mgmt type */
	if (req->crypto.n_akm_suites) {
		status =
			wlan_hdd_set_akm_suite(pAdapter, req->crypto.akm_suites[0]);
		if (0 > status) {
			hdd_err("failed to set akm suite");
			return status;
		}
	}

	/*set pairwise cipher type */
	if (req->crypto.n_ciphers_pairwise) {
		status = wlan_hdd_cfg80211_set_cipher(pAdapter,
						      req->crypto.
						      ciphers_pairwise[0],
						      true);
		if (0 > status) {
			hdd_err("failed to set unicast cipher type");
			return status;
		}
	} else {
		/*Reset previous cipher suite to none */
		status = wlan_hdd_cfg80211_set_cipher(pAdapter, 0, true);
		if (0 > status) {
			hdd_err("failed to set unicast cipher type");
			return status;
		}
	}

	/*set group cipher type */
	status =
		wlan_hdd_cfg80211_set_cipher(pAdapter, req->crypto.cipher_group,
					     false);

	if (0 > status) {
		hdd_err("failed to set mcast cipher type");
		return status;
	}
#ifdef WLAN_FEATURE_11W
	pWextState->roamProfile.MFPEnabled = (req->mfp == NL80211_MFP_REQUIRED);
#endif

	/*parse WPA/RSN IE, and set the correspoing fileds in Roam profile */
	if (req->ie_len) {
		status =
			wlan_hdd_cfg80211_set_ie(pAdapter, req->ie, req->ie_len);
		if (0 > status) {
			hdd_err("failed to parse the WPA/RSN IE");
			return status;
		}
	}

	/*incase of WEP set default key information */
	if (req->key && req->key_len) {
		u8 key_len = req->key_len;
		u8 key_idx = req->key_idx;

		if ((WLAN_CIPHER_SUITE_WEP40 == req->crypto.ciphers_pairwise[0])
		    || (WLAN_CIPHER_SUITE_WEP104 ==
			req->crypto.ciphers_pairwise[0])
		    ) {
			if (IW_AUTH_KEY_MGMT_802_1X
			    ==
			    (pWextState->
			     authKeyMgmt & IW_AUTH_KEY_MGMT_802_1X)) {
				hdd_err("Dynamic WEP not supported");
				return -EOPNOTSUPP;
			}

			if ((eCSR_SECURITY_WEP_KEYSIZE_MAX_BYTES >= key_len)
			    && (CSR_MAX_NUM_KEY > key_idx)) {
				hdd_notice("setting default wep key, key_idx = %hu key_len %hu",
					   key_idx, key_len);
				qdf_mem_copy(&pWextState->roamProfile.
					     Keys.
					     KeyMaterial[key_idx][0],
					     req->key, key_len);
				pWextState->roamProfile.Keys.
					KeyLength[key_idx] = (u8) key_len;
				pWextState->roamProfile.Keys.
					defaultIndex = (u8) key_idx;
			}
		}
	}

	return status;
}

int wlan_hdd_try_disconnect(hdd_adapter_t *pAdapter)
{
	unsigned long rc;
	hdd_station_ctx_t *pHddStaCtx;
	int status, result = 0;

	pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

	if ((QDF_IBSS_MODE == pAdapter->device_mode) ||
	  (eConnectionState_Associated == pHddStaCtx->conn_info.connState) ||
	  (eConnectionState_Connecting == pHddStaCtx->conn_info.connState) ||
	  (eConnectionState_IbssConnected == pHddStaCtx->conn_info.connState)) {
		hdd_conn_set_connection_state(pAdapter,
						eConnectionState_Disconnecting);
		/* Issue disconnect to CSR */
		INIT_COMPLETION(pAdapter->disconnect_comp_var);

		status = sme_roam_disconnect(WLAN_HDD_GET_HAL_CTX(pAdapter),
				pAdapter->sessionId,
				eCSR_DISCONNECT_REASON_UNSPECIFIED);
		/*
		 * Wait here instead of returning directly, this will block the
		 * next connect command and allow processing of the scan for
		 * ssid and the previous connect command in CSR. Else we might
		 * hit some race conditions leading to SME and HDD out of sync.
		 */
		if (QDF_STATUS_CMD_NOT_QUEUED == status) {
			hdd_info("Already disconnected or connect was in sme/roam pending list and removed by disconnect");
		} else if (0 != status) {
			hdd_err("csrRoamDisconnect failure, returned %d",
				(int)status);
			pHddStaCtx->staDebugState = status;
			result = -EINVAL;
			goto disconnected;
		}

		rc = wait_for_completion_timeout(
			&pAdapter->disconnect_comp_var,
			msecs_to_jiffies(WLAN_WAIT_TIME_DISCONNECT));
		if (!rc && (QDF_STATUS_CMD_NOT_QUEUED != status)) {
			hdd_err("Sme disconnect event timed out session Id %d staDebugState %d",
				pAdapter->sessionId, pHddStaCtx->staDebugState);
			result = -ETIMEDOUT;
		}
	} else if (eConnectionState_Disconnecting ==
				pHddStaCtx->conn_info.connState) {
		rc = wait_for_completion_timeout(&pAdapter->disconnect_comp_var,
				msecs_to_jiffies(WLAN_WAIT_TIME_DISCONNECT));
		if (!rc) {
			hdd_err("Disconnect event timed out session Id %d staDebugState %d",
				pAdapter->sessionId, pHddStaCtx->staDebugState);
			result = -ETIMEDOUT;
		}
	}
disconnected:
	hdd_conn_set_connection_state(pAdapter, eConnectionState_NotConnected);
	return result;
}

/**
 * wlan_hdd_reassoc_bssid_hint() - Start reassociation if bssid is present
 * @adapter: Pointer to the HDD adapter
 * @req: Pointer to the structure cfg_connect_params receieved from user space
 * @status: out variable for status of reassoc request
 *
 * This function will start reassociation if prev_bssid is set and bssid/
 * bssid_hint, channel/channel_hint parameters are present in connect request.
 *
 * Return: true if connect was for ReAssociation, false otherwise
 */
#if defined(CFG80211_CONNECT_PREV_BSSID) || \
	(LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0))
static bool wlan_hdd_reassoc_bssid_hint(hdd_adapter_t *adapter,
					struct cfg80211_connect_params *req,
					int *status)
{
	bool reassoc = false;
	const uint8_t *bssid = NULL;
	uint16_t channel = 0;

	if (req->bssid)
		bssid = req->bssid;
	else if (req->bssid_hint)
		bssid = req->bssid_hint;

	if (req->channel)
		channel = req->channel->hw_value;
	else if (req->channel_hint)
		channel = req->channel_hint->hw_value;

	if (bssid && channel && req->prev_bssid) {
		reassoc = true;
		hdd_info(FL("REASSOC Attempt on channel %d to "MAC_ADDRESS_STR),
				channel, MAC_ADDR_ARRAY(bssid));
		*status = hdd_reassoc(adapter, bssid, channel,
				      CONNECT_CMD_USERSPACE);
		hdd_debug("hdd_reassoc: status: %d", *status);
	}
	return reassoc;
}
#else
static bool wlan_hdd_reassoc_bssid_hint(hdd_adapter_t *adapter,
					struct cfg80211_connect_params *req,
					int *status)
{
	return false;
}
#endif

/**
 * __wlan_hdd_cfg80211_connect() - cfg80211 connect api
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @req: Pointer to cfg80211 connect request
 *
 * This function is used to start the association process
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_connect(struct wiphy *wiphy,
				       struct net_device *ndev,
				       struct cfg80211_connect_params *req)
{
	int status;
	u16 channel;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 15, 0))
	const u8 *bssid_hint = req->bssid_hint;
#else
	const u8 *bssid_hint = NULL;
#endif
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev);
	hdd_context_t *pHddCtx;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_CONNECT,
			 pAdapter->sessionId, pAdapter->device_mode));
	hdd_notice("Device_mode %s(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode);

	if (pAdapter->device_mode != QDF_STA_MODE &&
		pAdapter->device_mode != QDF_P2P_CLIENT_MODE) {
		hdd_err("Device_mode %s(%d) is not supported",
			hdd_device_mode_to_string(pAdapter->device_mode),
			pAdapter->device_mode);
		return -EINVAL;
	}

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	if (!pHddCtx) {
		hdd_err("HDD context is null");
		return -EINVAL;
	}

	status = wlan_hdd_validate_context(pHddCtx);
	if (0 != status)
		return status;

	if (true == wlan_hdd_reassoc_bssid_hint(pAdapter, req, &status))
		return status;

	/* Try disconnecting if already in connected state */
	status = wlan_hdd_try_disconnect(pAdapter);
	if (0 > status) {
		hdd_err("Failed to disconnect the existing connection");
		return -EALREADY;
	}

	/* Check for max concurrent connections after doing disconnect if any */
	if (req->channel) {
		if (!cds_allow_concurrency(
				cds_convert_device_mode_to_qdf_type(
				pAdapter->device_mode),
				req->channel->hw_value, HW_MODE_20_MHZ)) {
			hdd_err("This concurrency combination is not allowed");
			return -ECONNREFUSED;
		}
	} else {
		if (!cds_allow_concurrency(
				cds_convert_device_mode_to_qdf_type(
				pAdapter->device_mode), 0, HW_MODE_20_MHZ)) {
			hdd_err("This concurrency combination is not allowed");
			return -ECONNREFUSED;
		}
	}

	/*initialise security parameters */
	status = wlan_hdd_cfg80211_set_privacy(pAdapter, req);

	if (0 > status) {
		hdd_err("failed to set security params");
		return status;
	}

	if (req->channel)
		channel = req->channel->hw_value;
	else
		channel = 0;
	status = wlan_hdd_cfg80211_connect_start(pAdapter, req->ssid,
						 req->ssid_len, req->bssid,
						 bssid_hint, channel, 0);
	if (0 > status) {
		hdd_err("connect failed");
		return status;
	}
	EXIT();
	return status;
}

/**
 * wlan_hdd_cfg80211_connect() - cfg80211 connect api
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @req: Pointer to cfg80211 connect request
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_connect(struct wiphy *wiphy,
				     struct net_device *ndev,
				     struct cfg80211_connect_params *req)
{
	int ret;
	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_connect(wiphy, ndev, req);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_disconnect() - hdd disconnect api
 * @pAdapter: Pointer to adapter
 * @reason: Disconnect reason code
 *
 * This function is used to issue a disconnect request to SME
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_disconnect(hdd_adapter_t *pAdapter, u16 reason)
{
	int status, result = 0;
	unsigned long rc;
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);

	ENTER();

	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	/*stop tx queues */
	hdd_notice("Disabling queues");
	wlan_hdd_netif_queue_control(pAdapter, WLAN_NETIF_TX_DISABLE_N_CARRIER,
				   WLAN_CONTROL_PATH);
	hdd_notice("Set HDD connState to eConnectionState_Disconnecting");
	pHddStaCtx->conn_info.connState = eConnectionState_Disconnecting;
	INIT_COMPLETION(pAdapter->disconnect_comp_var);

	/*issue disconnect */

	status = sme_roam_disconnect(WLAN_HDD_GET_HAL_CTX(pAdapter),
				     pAdapter->sessionId, reason);
	/*
	 * Wait here instead of returning directly, this will block the next
	 * connect command and allow processing of the scan for ssid and
	 * the previous connect command in CSR. Else we might hit some
	 * race conditions leading to SME and HDD out of sync.
	 */
	if (QDF_STATUS_CMD_NOT_QUEUED == status) {
		hdd_info("Already disconnected or connect was in sme/roam pending list and removed by disconnect");
	} else if (0 != status) {
		hdd_err("csr_roam_disconnect failure, returned %d",
			(int)status);
		pHddStaCtx->staDebugState = status;
		result = -EINVAL;
		goto disconnected;
	}
	rc = wait_for_completion_timeout(&pAdapter->disconnect_comp_var,
					 msecs_to_jiffies
						 (WLAN_WAIT_TIME_DISCONNECT));

	if (!rc && (QDF_STATUS_CMD_NOT_QUEUED != status)) {
		hdd_err("Failed to disconnect, timed out");
		result = -ETIMEDOUT;
	}
disconnected:
	hdd_conn_set_connection_state(pAdapter, eConnectionState_NotConnected);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 11, 0)
	/* Sending disconnect event to userspace for kernel version < 3.11
	 * is handled by __cfg80211_disconnect call to __cfg80211_disconnected
	 */
	hdd_notice("Send disconnected event to userspace");
	wlan_hdd_cfg80211_indicate_disconnect(pAdapter->dev, true,
						WLAN_REASON_UNSPECIFIED);
#endif

	return result;
}

/**
 * hdd_ieee80211_reason_code_to_str() - return string conversion of reason code
 * @reason: ieee80211 reason code.
 *
 * This utility function helps log string conversion of reason code.
 *
 * Return: string conversion of reason code, if match found;
 *         "Unknown" otherwise.
 */
static const char *hdd_ieee80211_reason_code_to_str(uint16_t reason)
{
	switch (reason) {
	CASE_RETURN_STRING(WLAN_REASON_UNSPECIFIED);
	CASE_RETURN_STRING(WLAN_REASON_PREV_AUTH_NOT_VALID);
	CASE_RETURN_STRING(WLAN_REASON_DEAUTH_LEAVING);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_AP_BUSY);
	CASE_RETURN_STRING(WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA);
	CASE_RETURN_STRING(WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_STA_HAS_LEFT);
	CASE_RETURN_STRING(WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_BAD_POWER);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_BAD_SUPP_CHAN);
	CASE_RETURN_STRING(WLAN_REASON_INVALID_IE);
	CASE_RETURN_STRING(WLAN_REASON_MIC_FAILURE);
	CASE_RETURN_STRING(WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT);
	CASE_RETURN_STRING(WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT);
	CASE_RETURN_STRING(WLAN_REASON_IE_DIFFERENT);
	CASE_RETURN_STRING(WLAN_REASON_INVALID_GROUP_CIPHER);
	CASE_RETURN_STRING(WLAN_REASON_INVALID_PAIRWISE_CIPHER);
	CASE_RETURN_STRING(WLAN_REASON_INVALID_AKMP);
	CASE_RETURN_STRING(WLAN_REASON_UNSUPP_RSN_VERSION);
	CASE_RETURN_STRING(WLAN_REASON_INVALID_RSN_IE_CAP);
	CASE_RETURN_STRING(WLAN_REASON_IEEE8021X_FAILED);
	CASE_RETURN_STRING(WLAN_REASON_CIPHER_SUITE_REJECTED);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_UNSPECIFIED_QOS);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_LOW_ACK);
	CASE_RETURN_STRING(WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP);
	CASE_RETURN_STRING(WLAN_REASON_QSTA_LEAVE_QBSS);
	CASE_RETURN_STRING(WLAN_REASON_QSTA_NOT_USE);
	CASE_RETURN_STRING(WLAN_REASON_QSTA_REQUIRE_SETUP);
	CASE_RETURN_STRING(WLAN_REASON_QSTA_TIMEOUT);
	CASE_RETURN_STRING(WLAN_REASON_QSTA_CIPHER_NOT_SUPP);
	CASE_RETURN_STRING(WLAN_REASON_MESH_PEER_CANCELED);
	CASE_RETURN_STRING(WLAN_REASON_MESH_MAX_PEERS);
	CASE_RETURN_STRING(WLAN_REASON_MESH_CONFIG);
	CASE_RETURN_STRING(WLAN_REASON_MESH_CLOSE);
	CASE_RETURN_STRING(WLAN_REASON_MESH_MAX_RETRIES);
	CASE_RETURN_STRING(WLAN_REASON_MESH_CONFIRM_TIMEOUT);
	CASE_RETURN_STRING(WLAN_REASON_MESH_INVALID_GTK);
	CASE_RETURN_STRING(WLAN_REASON_MESH_INCONSISTENT_PARAM);
	CASE_RETURN_STRING(WLAN_REASON_MESH_INVALID_SECURITY);
	CASE_RETURN_STRING(WLAN_REASON_MESH_PATH_ERROR);
	CASE_RETURN_STRING(WLAN_REASON_MESH_PATH_NOFORWARD);
	CASE_RETURN_STRING(WLAN_REASON_MESH_PATH_DEST_UNREACHABLE);
	CASE_RETURN_STRING(WLAN_REASON_MAC_EXISTS_IN_MBSS);
	CASE_RETURN_STRING(WLAN_REASON_MESH_CHAN_REGULATORY);
	CASE_RETURN_STRING(WLAN_REASON_MESH_CHAN);
	default:
		return "Unknown";
	}
}

/**
 * __wlan_hdd_cfg80211_disconnect() - cfg80211 disconnect api
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @reason: Disconnect reason code
 *
 * This function is used to issue a disconnect request to SME
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_disconnect(struct wiphy *wiphy,
					  struct net_device *dev, u16 reason)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	int status;
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
#ifdef FEATURE_WLAN_TDLS
	uint8_t staIdx;
#endif

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_DISCONNECT,
			 pAdapter->sessionId, reason));
	hdd_notice("Device_mode %s(%d) reason code(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode, reason);

	status = wlan_hdd_validate_context(pHddCtx);

	if (hdd_is_roaming_in_progress()) {
		hdd_err("Roaming In Progress. Ignore!!!");
		return -EAGAIN;
	}

	if (0 != status)
		return status;

	/* Issue disconnect request to SME, if station is in connected state */
	if ((pHddStaCtx->conn_info.connState == eConnectionState_Associated) ||
	    (pHddStaCtx->conn_info.connState == eConnectionState_Connecting)) {
		eCsrRoamDisconnectReason reasonCode =
			eCSR_DISCONNECT_REASON_UNSPECIFIED;
		hdd_scaninfo_t *pScanInfo;

		switch (reason) {
		case WLAN_REASON_MIC_FAILURE:
			reasonCode = eCSR_DISCONNECT_REASON_MIC_ERROR;
			break;

		case WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY:
		case WLAN_REASON_DISASSOC_AP_BUSY:
		case WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA:
			reasonCode = eCSR_DISCONNECT_REASON_DISASSOC;
			break;

		case WLAN_REASON_PREV_AUTH_NOT_VALID:
		case WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA:
			reasonCode = eCSR_DISCONNECT_REASON_DEAUTH;
			break;

		case WLAN_REASON_DEAUTH_LEAVING:
			reasonCode =
				pHddCtx->config->
				gEnableDeauthToDisassocMap ?
				eCSR_DISCONNECT_REASON_STA_HAS_LEFT :
				eCSR_DISCONNECT_REASON_DEAUTH;
			break;
		case WLAN_REASON_DISASSOC_STA_HAS_LEFT:
			reasonCode = eCSR_DISCONNECT_REASON_STA_HAS_LEFT;
			break;
		default:
			reasonCode = eCSR_DISCONNECT_REASON_UNSPECIFIED;
			break;
		}
		hdd_notice("convert to internal reason %d to reasonCode %d",
			reason, reasonCode);
		pScanInfo = &pAdapter->scan_info;
		if (pScanInfo->mScanPending) {
			hdd_notice("Disconnect is in progress, Aborting Scan");
			hdd_abort_mac_scan(pHddCtx, pAdapter->sessionId,
					   INVALID_SCAN_ID,
					   eCSR_SCAN_ABORT_DEFAULT);
		}
		wlan_hdd_cleanup_remain_on_channel_ctx(pAdapter);
#ifdef FEATURE_WLAN_TDLS
		/* First clean up the tdls peers if any */
		for (staIdx = 0; staIdx < pHddCtx->max_num_tdls_sta; staIdx++) {
			if ((pHddCtx->tdlsConnInfo[staIdx].sessionId ==
			     pAdapter->sessionId)
			    && (pHddCtx->tdlsConnInfo[staIdx].staId)) {
				uint8_t *mac;
				mac =
					pHddCtx->tdlsConnInfo[staIdx].peerMac.bytes;
				hdd_notice("call sme_delete_tdls_peer_sta staId %d sessionId %d "
				       MAC_ADDRESS_STR,
				       pHddCtx->tdlsConnInfo[staIdx].staId,
				       pAdapter->sessionId,
				       MAC_ADDR_ARRAY(mac));
				sme_delete_tdls_peer_sta(WLAN_HDD_GET_HAL_CTX
								 (pAdapter),
							 pAdapter->sessionId, mac);
			}
		}
#endif
		hdd_notice("Disconnecting with reasoncode:%u",
		       reasonCode);
		hdd_info("Disconnect request from user space with reason: %s",
			hdd_ieee80211_reason_code_to_str(reason));
		status = wlan_hdd_disconnect(pAdapter, reasonCode);
		if (0 != status) {
			hdd_err("failure, returned %d", status);
			return -EINVAL;
		}
	} else {
		hdd_err("unexpected cfg disconnect called while in state (%d)",
		       pHddStaCtx->conn_info.connState);
	}

	return status;
}

/**
 * wlan_hdd_cfg80211_disconnect() - cfg80211 disconnect api
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @reason: Disconnect reason code
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_disconnect(struct wiphy *wiphy,
					struct net_device *dev, u16 reason)
{
	int ret;
	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_disconnect(wiphy, dev, reason);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * wlan_hdd_cfg80211_set_privacy_ibss() - set ibss privacy
 * @pAdapter: Pointer to adapter
 * @param: Pointer to IBSS parameters
 *
 * This function is used to initialize the security settings in IBSS mode
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_privacy_ibss(hdd_adapter_t *pAdapter,
					      struct cfg80211_ibss_params
					      *params)
{
	int status = 0;
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	eCsrEncryptionType encryptionType = eCSR_ENCRYPT_TYPE_NONE;
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);

	ENTER();

	pWextState->wpaVersion = IW_AUTH_WPA_VERSION_DISABLED;
	qdf_mem_zero(&pHddStaCtx->ibss_enc_key, sizeof(tCsrRoamSetKey));
	pHddStaCtx->ibss_enc_key_installed = 0;

	if (params->ie_len && (NULL != params->ie)) {
		if (wlan_hdd_cfg80211_get_ie_ptr(params->ie,
					 params->ie_len, WLAN_EID_RSN)) {
			pWextState->wpaVersion = IW_AUTH_WPA_VERSION_WPA2;
			encryptionType = eCSR_ENCRYPT_TYPE_AES;
		} else if (hdd_is_wpaie_present(params->ie, params->ie_len)) {
			tDot11fIEWPA dot11WPAIE;
			tHalHandle halHandle = WLAN_HDD_GET_HAL_CTX(pAdapter);
			u8 *ie;

			memset(&dot11WPAIE, 0, sizeof(dot11WPAIE));
			ie = wlan_hdd_cfg80211_get_ie_ptr(params->ie,
							  params->ie_len,
							  DOT11F_EID_WPA);
			if (NULL != ie) {
				pWextState->wpaVersion =
					IW_AUTH_WPA_VERSION_WPA;
				/* Unpack the WPA IE
				 * Skip past the EID byte and length byte
				 * and four byte WiFi OUI
				 */
				dot11f_unpack_ie_wpa((tpAniSirGlobal) halHandle,
						     &ie[2 + 4],
						     ie[1] - 4, &dot11WPAIE);
				/* Extract the multicast cipher, the
				 * encType for unicast cipher for
				 * wpa-none is none
				 */
				encryptionType =
					hdd_translate_wpa_to_csr_encryption_type
						(dot11WPAIE.multicast_cipher);
			}
		}

		status =
			wlan_hdd_cfg80211_set_ie(pAdapter, params->ie,
						 params->ie_len);

		if (0 > status) {
			hdd_err("failed to parse WPA/RSN IE");
			return status;
		}
	}

	pWextState->roamProfile.AuthType.authType[0] =
		pHddStaCtx->conn_info.authType = eCSR_AUTH_TYPE_OPEN_SYSTEM;

	if (params->privacy) {
		/* Security enabled IBSS, At this time there is no information
		 * available about the security paramters, so initialise the
		 * encryption type to eCSR_ENCRYPT_TYPE_WEP40_STATICKEY.
		 * The correct security parameters will be updated later in
		 * wlan_hdd_cfg80211_add_key Hal expects encryption type to be
		 * set inorder enable privacy bit in beacons
		 */

		encryptionType = eCSR_ENCRYPT_TYPE_WEP40_STATICKEY;
	}
	hdd_info("encryptionType=%d", encryptionType);
	pHddStaCtx->conn_info.ucEncryptionType = encryptionType;
	pWextState->roamProfile.EncryptionType.numEntries = 1;
	pWextState->roamProfile.EncryptionType.encryptionType[0] =
		encryptionType;
	return status;
}

/**
 * __wlan_hdd_cfg80211_join_ibss() - join ibss
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @param: Pointer to IBSS join parameters
 *
 * This function is used to create/join an IBSS network
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_join_ibss(struct wiphy *wiphy,
					 struct net_device *dev,
					 struct cfg80211_ibss_params *params)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	tCsrRoamProfile *pRoamProfile;
	int status;
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	struct qdf_mac_addr bssid;
	u8 channelNum = 0;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_JOIN_IBSS,
			 pAdapter->sessionId, pAdapter->device_mode));
	hdd_notice("Device_mode %s(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode);

	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	if (NULL !=
		params->chandef.chan) {
		uint32_t numChans = WNI_CFG_VALID_CHANNEL_LIST_LEN;
		uint8_t validChan[WNI_CFG_VALID_CHANNEL_LIST_LEN];
		tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
		int indx;

		/* Get channel number */
		channelNum = ieee80211_frequency_to_channel(
			params->
			chandef.
			chan->
			center_freq);

		if (0 != sme_cfg_get_str(hHal, WNI_CFG_VALID_CHANNEL_LIST,
					 validChan, &numChans)) {
			hdd_err("No valid channel list");
			return -EOPNOTSUPP;
		}

		for (indx = 0; indx < numChans; indx++) {
			if (channelNum == validChan[indx]) {
				break;
			}
		}
		if (indx >= numChans) {
			hdd_err("Not valid Channel %d", channelNum);
			return -EINVAL;
		}
	}

	if (!cds_allow_concurrency(CDS_IBSS_MODE, channelNum,
		HW_MODE_20_MHZ)) {
		hdd_err("This concurrency combination is not allowed");
		return -ECONNREFUSED;
	}

	status = qdf_reset_connection_update();
	if (!QDF_IS_STATUS_SUCCESS(status))
		hdd_err("ERR: clear event failed");

	status = cds_current_connections_update(pAdapter->sessionId,
					channelNum,
					SIR_UPDATE_REASON_JOIN_IBSS);
	if (QDF_STATUS_E_FAILURE == status) {
		hdd_err("ERROR: connections update failed!!");
		return -EINVAL;
	}

	if (QDF_STATUS_SUCCESS == status) {
		status = qdf_wait_for_connection_update();
		if (!QDF_IS_STATUS_SUCCESS(status)) {
			hdd_err("ERROR: qdf wait for event failed!!");
			return -EINVAL;
		}
	}

	/*Try disconnecting if already in connected state */
	status = wlan_hdd_try_disconnect(pAdapter);
	if (0 > status) {
		hdd_err("Failed to disconnect the existing IBSS connection");
		return -EALREADY;
	}

	pRoamProfile = &pWextState->roamProfile;

	if (eCSR_BSS_TYPE_START_IBSS != pRoamProfile->BSSType) {
		hdd_err("Interface type is not set to IBSS");
		return -EINVAL;
	}

	/* enable selected protection checks in IBSS mode */
	pRoamProfile->cfg_protection = IBSS_CFG_PROTECTION_ENABLE_MASK;

	if (QDF_STATUS_E_FAILURE == sme_cfg_set_int(pHddCtx->hHal,
						    WNI_CFG_IBSS_ATIM_WIN_SIZE,
						    pHddCtx->config->
						    ibssATIMWinSize)) {
		hdd_err("Could not pass on WNI_CFG_IBSS_ATIM_WIN_SIZE to CCM");
	}

	/* BSSID is provided by upper layers hence no need to AUTO generate */
	if (NULL != params->bssid) {
		if (sme_cfg_set_int(pHddCtx->hHal, WNI_CFG_IBSS_AUTO_BSSID, 0)
				== QDF_STATUS_E_FAILURE) {
			hdd_err("ccmCfgStInt failed for WNI_CFG_IBSS_AUTO_BSSID");
			return -EIO;
		}
		qdf_mem_copy(bssid.bytes, params->bssid, QDF_MAC_ADDR_SIZE);
	} else if (pHddCtx->config->isCoalesingInIBSSAllowed == 0) {
		if (sme_cfg_set_int(pHddCtx->hHal, WNI_CFG_IBSS_AUTO_BSSID, 0)
				== QDF_STATUS_E_FAILURE) {
			hdd_err("ccmCfgStInt failed for WNI_CFG_IBSS_AUTO_BSSID");
			return -EIO;
		}
		qdf_copy_macaddr(&bssid, &pHddCtx->config->IbssBssid);
	}
	if ((params->beacon_interval > CFG_BEACON_INTERVAL_MIN)
	    && (params->beacon_interval <= CFG_BEACON_INTERVAL_MAX))
		pRoamProfile->beaconInterval = params->beacon_interval;
	else {
		pRoamProfile->beaconInterval = CFG_BEACON_INTERVAL_DEFAULT;
		hdd_info("input beacon interval %d TU is invalid, use default %d TU",
			params->beacon_interval, pRoamProfile->beaconInterval);
	}

	/* Set Channel */
	if (channelNum)	{
		/* Set the Operational Channel */
		hdd_info("set channel %d", channelNum);
		pRoamProfile->ChannelInfo.numOfChannels = 1;
		pHddStaCtx->conn_info.operationChannel = channelNum;
		pRoamProfile->ChannelInfo.ChannelList =
			&pHddStaCtx->conn_info.operationChannel;
	}

	/* Initialize security parameters */
	status = wlan_hdd_cfg80211_set_privacy_ibss(pAdapter, params);
	if (status < 0) {
		hdd_err("failed to set security parameters");
		return status;
	}

	/* Issue connect start */
	status = wlan_hdd_cfg80211_connect_start(pAdapter, params->ssid,
						 params->ssid_len,
						 bssid.bytes, NULL,
						 pHddStaCtx->conn_info.
						 operationChannel,
						 params->chandef.width);

	if (0 > status) {
		hdd_err("connect failed");
		return status;
	}
	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_join_ibss() - join ibss
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @param: Pointer to IBSS join parameters
 *
 * This function is used to create/join an IBSS network
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_join_ibss(struct wiphy *wiphy,
				       struct net_device *dev,
				       struct cfg80211_ibss_params *params)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_join_ibss(wiphy, dev, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_leave_ibss() - leave ibss
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 *
 * This function is used to leave an IBSS network
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_leave_ibss(struct wiphy *wiphy,
					  struct net_device *dev)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_wext_state_t *pWextState = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter);
	tCsrRoamProfile *pRoamProfile;
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	int status;
	QDF_STATUS hal_status;
	unsigned long rc;
	tSirUpdateIE updateIE;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_LEAVE_IBSS,
			 pAdapter->sessionId,
			 eCSR_DISCONNECT_REASON_IBSS_LEAVE));
	status = wlan_hdd_validate_context(pHddCtx);
	if (0 != status)
		return status;

	hdd_notice("Device_mode %s(%d)",
		hdd_device_mode_to_string(pAdapter->device_mode),
		pAdapter->device_mode);
	if (NULL == pWextState) {
		hdd_err("Data Storage Corruption");
		return -EIO;
	}

	pRoamProfile = &pWextState->roamProfile;

	/* Issue disconnect only if interface type is set to IBSS */
	if (eCSR_BSS_TYPE_START_IBSS != pRoamProfile->BSSType) {
		hdd_err("BSS Type is not set to IBSS");
		return -EINVAL;
	}
	/* Clearing add IE of beacon */
	qdf_mem_copy(updateIE.bssid.bytes, pAdapter->macAddressCurrent.bytes,
		     sizeof(tSirMacAddr));
	updateIE.smeSessionId = pAdapter->sessionId;
	updateIE.ieBufferlength = 0;
	updateIE.pAdditionIEBuffer = NULL;
	updateIE.append = true;
	updateIE.notify = true;
	if (sme_update_add_ie(WLAN_HDD_GET_HAL_CTX(pAdapter),
			      &updateIE,
			      eUPDATE_IE_PROBE_BCN) == QDF_STATUS_E_FAILURE) {
		hdd_err("Could not pass on PROBE_RSP_BCN data to PE");
	}

	/* Reset WNI_CFG_PROBE_RSP Flags */
	wlan_hdd_reset_prob_rspies(pAdapter);

	/* Issue Disconnect request */
	INIT_COMPLETION(pAdapter->disconnect_comp_var);
	hal_status = sme_roam_disconnect(WLAN_HDD_GET_HAL_CTX(pAdapter),
					 pAdapter->sessionId,
					 eCSR_DISCONNECT_REASON_IBSS_LEAVE);
	if (!QDF_IS_STATUS_SUCCESS(hal_status)) {
		hdd_err("sme_roam_disconnect failed hal_status(%d)",
		       hal_status);
		return -EAGAIN;
	}

	/* wait for mc thread to cleanup and then return to upper stack
	 * so by the time upper layer calls the change interface, we are
	 * all set to proceed further
	 */
	rc = wait_for_completion_timeout(&pAdapter->disconnect_comp_var,
			msecs_to_jiffies(WLAN_WAIT_TIME_DISCONNECT));
	if (!rc) {
		hdd_err("Failed to disconnect, timed out");
		return -ETIMEDOUT;
	}

	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_leave_ibss() - leave ibss
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 *
 * This function is used to leave an IBSS network
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_leave_ibss(struct wiphy *wiphy,
					struct net_device *dev)
{
	int ret = 0;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_leave_ibss(wiphy, dev);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_set_wiphy_params() - set wiphy parameters
 * @wiphy: Pointer to wiphy
 * @changed: Parameters changed
 *
 * This function is used to set the phy parameters. RTS Threshold/FRAG
 * Threshold/Retry Count etc.
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_set_wiphy_params(struct wiphy *wiphy,
						u32 changed)
{
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	tHalHandle hHal = pHddCtx->hHal;
	int status;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_SET_WIPHY_PARAMS,
			 NO_SESSION, wiphy->rts_threshold));
	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
		u32 rts_threshold = (wiphy->rts_threshold == -1) ?
				    WNI_CFG_RTS_THRESHOLD_STAMAX : wiphy->rts_threshold;

		if ((WNI_CFG_RTS_THRESHOLD_STAMIN > rts_threshold) ||
		    (WNI_CFG_RTS_THRESHOLD_STAMAX < rts_threshold)) {
			hdd_err("Invalid RTS Threshold value %u",
				rts_threshold);
			return -EINVAL;
		}

		if (0 != sme_cfg_set_int(hHal, WNI_CFG_RTS_THRESHOLD,
					rts_threshold)) {
			hdd_err("sme_cfg_set_int failed for rts_threshold value %u",
				rts_threshold);
			return -EIO;
		}

		hdd_info("set rts threshold %u", rts_threshold);
	}

	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
		u16 frag_threshold = (wiphy->frag_threshold == -1) ?
				     WNI_CFG_FRAGMENTATION_THRESHOLD_STAMAX :
				     wiphy->frag_threshold;

		if ((WNI_CFG_FRAGMENTATION_THRESHOLD_STAMIN > frag_threshold) ||
		    (WNI_CFG_FRAGMENTATION_THRESHOLD_STAMAX < frag_threshold)) {
			hdd_err("Invalid frag_threshold value %hu",
				frag_threshold);
			return -EINVAL;
		}

		if (0 != sme_cfg_set_int(hHal, WNI_CFG_FRAGMENTATION_THRESHOLD,
					 frag_threshold)) {
			hdd_err("sme_cfg_set_int failed for frag_threshold value %hu",
				frag_threshold);
			return -EIO;
		}

		hdd_info("set frag threshold %hu", frag_threshold);
	}

	if ((changed & WIPHY_PARAM_RETRY_SHORT)
	    || (changed & WIPHY_PARAM_RETRY_LONG)) {
		u8 retry_value = (changed & WIPHY_PARAM_RETRY_SHORT) ?
				 wiphy->retry_short : wiphy->retry_long;

		if ((WNI_CFG_LONG_RETRY_LIMIT_STAMIN > retry_value) ||
		    (WNI_CFG_LONG_RETRY_LIMIT_STAMAX < retry_value)) {
			hdd_err("Invalid Retry count %hu", retry_value);
			return -EINVAL;
		}

		if (changed & WIPHY_PARAM_RETRY_SHORT) {
			if (0 != sme_cfg_set_int(hHal,
						WNI_CFG_LONG_RETRY_LIMIT,
						retry_value)) {
				hdd_err("sme_cfg_set_int failed for long retry count %hu",
					retry_value);
				return -EIO;
			}
			hdd_info("set long retry count %hu", retry_value);
		} else if (changed & WIPHY_PARAM_RETRY_SHORT) {
			if (0 != sme_cfg_set_int(hHal,
						WNI_CFG_SHORT_RETRY_LIMIT,
						retry_value)) {
				hdd_err("sme_cfg_set_int failed for short retry count %hu",
					retry_value);
				return -EIO;
			}
			hdd_info("set short retry count %hu", retry_value);
		}
	}
	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_set_wiphy_params() - set wiphy parameters
 * @wiphy: Pointer to wiphy
 * @changed: Parameters changed
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_wiphy_params(wiphy, changed);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_set_default_mgmt_key() - dummy implementation of set default mgmt
 *				     key
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @key_index: Key index
 *
 * Return: 0
 */
static int __wlan_hdd_set_default_mgmt_key(struct wiphy *wiphy,
					 struct net_device *netdev,
					 u8 key_index)
{
	ENTER();
	return 0;
}

/**
 * wlan_hdd_set_default_mgmt_key() - SSR wrapper for
 *				wlan_hdd_set_default_mgmt_key
 * @wiphy: pointer to wiphy
 * @netdev: pointer to net_device structure
 * @key_index: key index
 *
 * Return: 0 on success, error number on failure
 */
static int wlan_hdd_set_default_mgmt_key(struct wiphy *wiphy,
					   struct net_device *netdev,
					   u8 key_index)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_set_default_mgmt_key(wiphy, netdev, key_index);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_set_txq_params() - dummy implementation of set tx queue params
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @params: Pointer to tx queue parameters
 *
 * Return: 0
 */
static int __wlan_hdd_set_txq_params(struct wiphy *wiphy,
				   struct net_device *dev,
				   struct ieee80211_txq_params *params)
{
	ENTER();
	return 0;
}

/**
 * wlan_hdd_set_txq_params() - SSR wrapper for wlan_hdd_set_txq_params
 * @wiphy: pointer to wiphy
 * @netdev: pointer to net_device structure
 * @params: pointer to ieee80211_txq_params
 *
 * Return: 0 on success, error number on failure
 */
static int wlan_hdd_set_txq_params(struct wiphy *wiphy,
				   struct net_device *dev,
				   struct ieee80211_txq_params *params)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_set_txq_params(wiphy, dev, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_del_station() - delete station v2
 * @wiphy: Pointer to wiphy
 * @param: Pointer to delete station parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static
int __wlan_hdd_cfg80211_del_station(struct wiphy *wiphy,
				    struct net_device *dev,
				    struct tagCsrDelStaParams *pDelStaParams)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx;
	QDF_STATUS qdf_status = QDF_STATUS_E_FAILURE;
	hdd_hostapd_state_t *hapd_state;
	int status;
	uint8_t staId;
	uint8_t *mac;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_DEL_STA,
			 pAdapter->sessionId, pAdapter->device_mode));

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	mac = (uint8_t *) pDelStaParams->peerMacAddr.bytes;

	if ((QDF_SAP_MODE == pAdapter->device_mode) ||
	    (QDF_P2P_GO_MODE == pAdapter->device_mode)) {

		hapd_state = WLAN_HDD_GET_HOSTAP_STATE_PTR(pAdapter);
		if (!hapd_state) {
			hdd_err("Hostapd State is Null");
			return 0;
		}

		if (qdf_is_macaddr_broadcast((struct qdf_mac_addr *) mac)) {
			uint16_t i;
			for (i = 0; i < WLAN_MAX_STA_COUNT; i++) {
				if ((pAdapter->aStaInfo[i].isUsed) &&
				    (!pAdapter->aStaInfo[i].
				     isDeauthInProgress)) {
					qdf_mem_copy(
						mac,
						pAdapter->aStaInfo[i].
							macAddrSTA.bytes,
						QDF_MAC_ADDR_SIZE);
					if (hdd_ipa_uc_is_enabled(pHddCtx)) {
						hdd_ipa_wlan_evt(pAdapter,
							pAdapter->
								 aStaInfo[i].
								 ucSTAId,
							HDD_IPA_CLIENT_DISCONNECT,
							mac);
					}
					hdd_notice("Delete STA with MAC::"
						  MAC_ADDRESS_STR,
					       MAC_ADDR_ARRAY(mac));

					if (pHddCtx->dev_dfs_cac_status ==
							DFS_CAC_IN_PROGRESS)
						goto fn_end;

					qdf_event_reset(&hapd_state->qdf_sta_disassoc_event);
					hdd_softap_sta_disassoc(pAdapter,
								pDelStaParams);
					qdf_status =
						hdd_softap_sta_deauth(pAdapter,
							pDelStaParams);
					if (QDF_IS_STATUS_SUCCESS(qdf_status)) {
						pAdapter->aStaInfo[i].
						isDeauthInProgress = true;
						qdf_status =
							qdf_wait_single_event(
							 &hapd_state->
							 qdf_sta_disassoc_event,
							 SME_CMD_TIMEOUT_VALUE);
						if (!QDF_IS_STATUS_SUCCESS(
								qdf_status))
							hdd_err("Deauth wait time expired");
					}
				}
			}
		} else {
			qdf_status =
				hdd_softap_get_sta_id(pAdapter,
					      (struct qdf_mac_addr *) mac,
					      &staId);
			if (!QDF_IS_STATUS_SUCCESS(qdf_status)) {
				hdd_notice("Skip DEL STA as this is not used::"
					  MAC_ADDRESS_STR,
				       MAC_ADDR_ARRAY(mac));
				return -ENOENT;
			}

			if (hdd_ipa_uc_is_enabled(pHddCtx)) {
				hdd_ipa_wlan_evt(pAdapter, staId,
					HDD_IPA_CLIENT_DISCONNECT, mac);
			}

			if (pAdapter->aStaInfo[staId].isDeauthInProgress ==
			    true) {
				hdd_notice("Skip DEL STA as deauth is in progress::"
					  MAC_ADDRESS_STR,
					  MAC_ADDR_ARRAY(mac));
				return -ENOENT;
			}

			pAdapter->aStaInfo[staId].isDeauthInProgress = true;

			hdd_notice("Delete STA with MAC::" MAC_ADDRESS_STR,
			       MAC_ADDR_ARRAY(mac));

			/* Case: SAP in ACS selected DFS ch and client connected
			 * Now Radar detected. Then if random channel is another
			 * DFS ch then new CAC is initiated and no TX allowed.
			 * So do not send any mgmt frames as it will timeout
			 * during CAC.
			 */

			if (pHddCtx->dev_dfs_cac_status == DFS_CAC_IN_PROGRESS)
				goto fn_end;

			qdf_event_reset(&hapd_state->qdf_sta_disassoc_event);
			sme_send_disassoc_req_frame(WLAN_HDD_GET_HAL_CTX
					(pAdapter), pAdapter->sessionId,
					(uint8_t *)&pDelStaParams->peerMacAddr,
					pDelStaParams->reason_code, 0);
			qdf_status = hdd_softap_sta_deauth(pAdapter,
							   pDelStaParams);
			if (!QDF_IS_STATUS_SUCCESS(qdf_status)) {
				pAdapter->aStaInfo[staId].isDeauthInProgress =
					false;
				hdd_notice("STA removal failed for ::"
					  MAC_ADDRESS_STR,
				       MAC_ADDR_ARRAY(mac));
				return -ENOENT;
			} else {
				qdf_status = qdf_wait_single_event(
						&hapd_state->
						qdf_sta_disassoc_event,
						SME_CMD_TIMEOUT_VALUE);
				if (!QDF_IS_STATUS_SUCCESS(qdf_status))
					hdd_err("Deauth wait time expired");
			}
		}
	}

fn_end:
	EXIT();
	return 0;
}

#if defined(USE_CFG80211_DEL_STA_V2)
/**
 * wlan_hdd_del_station() - delete station wrapper
 * @adapter: pointer to the hdd adapter
 *
 * Return: None
 */
void wlan_hdd_del_station(hdd_adapter_t *adapter)
{
	struct station_del_parameters del_sta;
	del_sta.mac = NULL;
	del_sta.subtype = SIR_MAC_MGMT_DEAUTH >> 4;
	del_sta.reason_code = eCsrForcedDeauthSta;

	wlan_hdd_cfg80211_del_station(adapter->wdev.wiphy, adapter->dev,
				      &del_sta);
}
#else
void wlan_hdd_del_station(hdd_adapter_t *adapter)
{
	wlan_hdd_cfg80211_del_station(adapter->wdev.wiphy, adapter->dev, NULL);
}
#endif

#if defined(USE_CFG80211_DEL_STA_V2)
/**
 * wlan_hdd_cfg80211_del_station() - delete station v2
 * @wiphy: Pointer to wiphy
 * @param: Pointer to delete station parameter
 *
 * Return: 0 for success, non-zero for failure
 */
int wlan_hdd_cfg80211_del_station(struct wiphy *wiphy,
				  struct net_device *dev,
				  struct station_del_parameters *param)
#else
/**
 * wlan_hdd_cfg80211_del_station() - delete station
 * @wiphy: Pointer to wiphy
 * @mac: Pointer to station mac address
 *
 * Return: 0 for success, non-zero for failure
 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0))
int wlan_hdd_cfg80211_del_station(struct wiphy *wiphy,
				  struct net_device *dev,
				  const uint8_t *mac)
#else
int wlan_hdd_cfg80211_del_station(struct wiphy *wiphy,
				  struct net_device *dev,
				  uint8_t *mac)
#endif
#endif
{
	int ret;
	struct tagCsrDelStaParams delStaParams;

	cds_ssr_protect(__func__);
#if defined(USE_CFG80211_DEL_STA_V2)
	if (NULL == param) {
		hdd_err("Invalid argument passed");
		return -EINVAL;
	}
	wlansap_populate_del_sta_params(param->mac, param->reason_code,
					param->subtype, &delStaParams);
#else
	wlansap_populate_del_sta_params(mac, eSIR_MAC_DEAUTH_LEAVING_BSS_REASON,
					(SIR_MAC_MGMT_DEAUTH >> 4),
					&delStaParams);
#endif
	ret = __wlan_hdd_cfg80211_del_station(wiphy, dev, &delStaParams);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_add_station() - add station
 * @wiphy: Pointer to wiphy
 * @mac: Pointer to station mac address
 * @pmksa: Pointer to add station parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_add_station(struct wiphy *wiphy,
					   struct net_device *dev,
					   const uint8_t *mac,
					   struct station_parameters *params)
{
	int status = -EPERM;
#ifdef FEATURE_WLAN_TDLS
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	u32 mask, set;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_ADD_STA,
			 pAdapter->sessionId, params->listen_interval));

	if (0 != wlan_hdd_validate_context(pHddCtx))
		return -EINVAL;

	mask = params->sta_flags_mask;

	set = params->sta_flags_set;

	hdd_notice("mask 0x%x set 0x%x " MAC_ADDRESS_STR, mask, set,
		MAC_ADDR_ARRAY(mac));

	if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
		if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
			status =
				wlan_hdd_tdls_add_station(wiphy, dev, mac, 0, NULL);
		}
	}
#endif
	EXIT();
	return status;
}

/**
 * wlan_hdd_cfg80211_add_station() - add station
 * @wiphy: Pointer to wiphy
 * @mac: Pointer to station mac address
 * @pmksa: Pointer to add station parameter
 *
 * Return: 0 for success, non-zero for failure
 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 16, 0))
static int wlan_hdd_cfg80211_add_station(struct wiphy *wiphy,
					 struct net_device *dev,
					 const uint8_t *mac,
					 struct station_parameters *params)
#else
static int wlan_hdd_cfg80211_add_station(struct wiphy *wiphy,
					 struct net_device *dev, uint8_t *mac,
					 struct station_parameters *params)
#endif
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_add_station(wiphy, dev, mac, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_set_pmksa() - set pmksa
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @pmksa: Pointer to set pmksa parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_set_pmksa(struct wiphy *wiphy,
					 struct net_device *dev,
					 struct cfg80211_pmksa *pmksa)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	tHalHandle halHandle;
	QDF_STATUS result = QDF_STATUS_SUCCESS;
	int status;
	tPmkidCacheInfo pmk_id;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	if (!pmksa) {
		hdd_err("pmksa is NULL");
		return -EINVAL;
	}

	if (!pmksa->bssid || !pmksa->pmkid) {
		hdd_err("pmksa->bssid(%p) or pmksa->pmkid(%p) is NULL",
		       pmksa->bssid, pmksa->pmkid);
		return -EINVAL;
	}

	hdd_warn("set PMKSA for " MAC_ADDRESS_STR,
		MAC_ADDR_ARRAY(pmksa->bssid));

	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	halHandle = WLAN_HDD_GET_HAL_CTX(pAdapter);

	qdf_mem_copy(pmk_id.BSSID.bytes, pmksa->bssid, QDF_MAC_ADDR_SIZE);
	qdf_mem_copy(pmk_id.PMKID, pmksa->pmkid, CSR_RSN_PMKID_SIZE);

	/* Add to the PMKSA ID Cache in CSR */
	result = sme_roam_set_pmkid_cache(halHandle, pAdapter->sessionId,
					  &pmk_id, 1, false);

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_SET_PMKSA,
			 pAdapter->sessionId, result));

	EXIT();
	return QDF_IS_STATUS_SUCCESS(result) ? 0 : -EINVAL;
}

/**
 * wlan_hdd_cfg80211_set_pmksa() - set pmksa
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @pmksa: Pointer to set pmksa parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_set_pmksa(struct wiphy *wiphy,
				       struct net_device *dev,
				       struct cfg80211_pmksa *pmksa)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_pmksa(wiphy, dev, pmksa);
	cds_ssr_unprotect(__func__);

	return ret;
}

/**
 * __wlan_hdd_cfg80211_del_pmksa() - delete pmksa
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @pmksa: Pointer to pmksa parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_del_pmksa(struct wiphy *wiphy,
					 struct net_device *dev,
					 struct cfg80211_pmksa *pmksa)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	tHalHandle halHandle;
	int status = 0;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	if (!pmksa) {
		hdd_err("pmksa is NULL");
		return -EINVAL;
	}

	if (!pmksa->bssid) {
		hdd_err("pmksa->bssid is NULL");
		return -EINVAL;
	}

	hdd_debug("Deleting PMKSA for " MAC_ADDRESS_STR,
	       MAC_ADDR_ARRAY(pmksa->bssid));

	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	halHandle = WLAN_HDD_GET_HAL_CTX(pAdapter);

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_DEL_PMKSA,
			 pAdapter->sessionId, 0));
	/* Delete the PMKID CSR cache */
	if (QDF_STATUS_SUCCESS !=
	    sme_roam_del_pmkid_from_cache(halHandle,
					  pAdapter->sessionId, pmksa->bssid,
					  false)) {
		hdd_err("Failed to delete PMKSA for " MAC_ADDRESS_STR,
		       MAC_ADDR_ARRAY(pmksa->bssid));
		status = -EINVAL;
	}
	EXIT();
	return status;
}

/**
 * wlan_hdd_cfg80211_del_pmksa() - delete pmksa
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @pmksa: Pointer to pmksa parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_del_pmksa(struct wiphy *wiphy,
				       struct net_device *dev,
				       struct cfg80211_pmksa *pmksa)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_del_pmksa(wiphy, dev, pmksa);
	cds_ssr_unprotect(__func__);

	return ret;

}

/**
 * __wlan_hdd_cfg80211_flush_pmksa() - flush pmksa
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_flush_pmksa(struct wiphy *wiphy,
					   struct net_device *dev)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	tHalHandle halHandle;
	int status = 0;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	hdd_warn("Flushing PMKSA");

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	/* Retrieve halHandle */
	halHandle = WLAN_HDD_GET_HAL_CTX(pAdapter);

	/* Flush the PMKID cache in CSR */
	if (QDF_STATUS_SUCCESS !=
	    sme_roam_del_pmkid_from_cache(halHandle, pAdapter->sessionId, NULL,
					  true)) {
		hdd_err("Cannot flush PMKIDCache");
		status = -EINVAL;
	}
	EXIT();
	return status;
}

/**
 * wlan_hdd_cfg80211_flush_pmksa() - flush pmksa
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_flush_pmksa(struct wiphy *wiphy,
					 struct net_device *dev)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_flush_pmksa(wiphy, dev);
	cds_ssr_unprotect(__func__);

	return ret;
}

#if defined(KERNEL_SUPPORT_11R_CFG80211)
/**
 * __wlan_hdd_cfg80211_update_ft_ies() - update fast transition ies
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @ftie: Pointer to fast transition ie parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int
__wlan_hdd_cfg80211_update_ft_ies(struct wiphy *wiphy,
				  struct net_device *dev,
				  struct cfg80211_update_ft_ies_params *ftie)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	int status;

	ENTER();

	status = wlan_hdd_validate_context(hdd_ctx);
	if (status)
		return status;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_UPDATE_FT_IES,
			 pAdapter->sessionId, pHddStaCtx->conn_info.connState));
	/* Added for debug on reception of Re-assoc Req. */
	if (eConnectionState_Associated != pHddStaCtx->conn_info.connState) {
		hdd_err("Called with Ie of length = %zu when not associated",
		       ftie->ie_len);
		hdd_err("Should be Re-assoc Req IEs");
	}
	hdd_notice("%s called with Ie of length = %zu", __func__,
	       ftie->ie_len);

	/* Pass the received FT IEs to SME */
	sme_set_ft_ies(WLAN_HDD_GET_HAL_CTX(pAdapter), pAdapter->sessionId,
		       (const u8 *)ftie->ie, ftie->ie_len);
	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_update_ft_ies() - update fast transition ies
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @ftie: Pointer to fast transition ie parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int
wlan_hdd_cfg80211_update_ft_ies(struct wiphy *wiphy,
				struct net_device *dev,
				struct cfg80211_update_ft_ies_params *ftie)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_update_ft_ies(wiphy, dev, ftie);
	cds_ssr_unprotect(__func__);

	return ret;
}
#endif

#ifdef WLAN_FEATURE_GTK_OFFLOAD
/**
 * wlan_hdd_cfg80211_update_replay_counter_callback() - replay counter callback
 * @callbackContext: Callback context
 * @pGtkOffloadGetInfoRsp: Pointer to gtk offload response parameter
 *
 * Callback rountine called upon receiving response for get offload info
 *
 * Return: none
 */
void wlan_hdd_cfg80211_update_replay_counter_callback(void *callbackContext,
						tpSirGtkOffloadGetInfoRspParams
						pGtkOffloadGetInfoRsp)
{
	hdd_adapter_t *pAdapter = (hdd_adapter_t *) callbackContext;
	uint8_t tempReplayCounter[8];
	hdd_station_ctx_t *pHddStaCtx;

	ENTER();

	if (NULL == pAdapter) {
		hdd_err("HDD adapter is Null");
		return;
	}

	if (NULL == pGtkOffloadGetInfoRsp) {
		hdd_err("pGtkOffloadGetInfoRsp is Null");
		return;
	}

	if (QDF_STATUS_SUCCESS != pGtkOffloadGetInfoRsp->ulStatus) {
		hdd_err("wlan Failed to get replay counter value");
		return;
	}

	pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	/* Update replay counter */
	pHddStaCtx->gtkOffloadReqParams.ullKeyReplayCounter =
		pGtkOffloadGetInfoRsp->ullKeyReplayCounter;

	{
		/* changing from little to big endian since supplicant
		 * works on big endian format
		 */
		int i;
		uint8_t *p =
			(uint8_t *) &pGtkOffloadGetInfoRsp->ullKeyReplayCounter;

		for (i = 0; i < 8; i++) {
			tempReplayCounter[7 - i] = (uint8_t) p[i];
		}
	}

	/* Update replay counter to NL */
	cfg80211_gtk_rekey_notify(pAdapter->dev,
				  pGtkOffloadGetInfoRsp->bssid.bytes,
				  tempReplayCounter, GFP_KERNEL);
}

/**
 * __wlan_hdd_cfg80211_set_rekey_data() - set rekey data
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @data: Pointer to rekey data
 *
 * This function is used to offload GTK rekeying job to the firmware.
 *
 * Return: 0 for success, non-zero for failure
 */
static
int __wlan_hdd_cfg80211_set_rekey_data(struct wiphy *wiphy,
				       struct net_device *dev,
				       struct cfg80211_gtk_rekey_data *data)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);
	hdd_station_ctx_t *pHddStaCtx;
	tHalHandle hHal;
	int result;
	tSirGtkOffloadParams hddGtkOffloadReqParams;
	QDF_STATUS status = QDF_STATUS_E_FAILURE;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_SET_REKEY_DATA,
			 pAdapter->sessionId, pAdapter->device_mode));

	result = wlan_hdd_validate_context(pHddCtx);

	if (0 != result)
		return result;

	pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter);
	hHal = WLAN_HDD_GET_HAL_CTX(pAdapter);
	if (NULL == hHal) {
		hdd_err("HAL context is Null!!!");
		return -EAGAIN;
	}

	pHddStaCtx->gtkOffloadReqParams.ulFlags = GTK_OFFLOAD_ENABLE;
	memcpy(pHddStaCtx->gtkOffloadReqParams.aKCK, data->kck,
	       NL80211_KCK_LEN);
	memcpy(pHddStaCtx->gtkOffloadReqParams.aKEK, data->kek,
	       NL80211_KEK_LEN);
	qdf_copy_macaddr(&pHddStaCtx->gtkOffloadReqParams.bssid,
			 &pHddStaCtx->conn_info.bssId);
	{
		/* changing from big to little endian since driver
		 * works on little endian format
		 */
		uint8_t *p =
			(uint8_t *) &pHddStaCtx->gtkOffloadReqParams.
			ullKeyReplayCounter;
		int i;

		for (i = 0; i < 8; i++) {
			p[7 - i] = data->replay_ctr[i];
		}
	}

	if (true == pHddCtx->hdd_wlan_suspended) {
		/* if wlan is suspended, enable GTK offload directly from here */
		memcpy(&hddGtkOffloadReqParams,
		       &pHddStaCtx->gtkOffloadReqParams,
		       sizeof(tSirGtkOffloadParams));
		status =
			sme_set_gtk_offload(hHal, &hddGtkOffloadReqParams,
					    pAdapter->sessionId);

		if (QDF_STATUS_SUCCESS != status) {
			hdd_err("sme_set_gtk_offload failed, status(%d)",
			       status);
			return -EINVAL;
		}
		hdd_notice("sme_set_gtk_offload successful");
	} else {
		hdd_notice("wlan not suspended GTKOffload request is stored");
	}
	EXIT();
	return result;
}

/**
 * wlan_hdd_cfg80211_set_rekey_data() - set rekey data
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @data: Pointer to rekey data
 *
 * This function is used to offload GTK rekeying job to the firmware.
 *
 * Return: 0 for success, non-zero for failure
 */
static
int wlan_hdd_cfg80211_set_rekey_data(struct wiphy *wiphy,
				     struct net_device *dev,
				     struct cfg80211_gtk_rekey_data *data)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_rekey_data(wiphy, dev, data);
	cds_ssr_unprotect(__func__);

	return ret;
}
#endif /*WLAN_FEATURE_GTK_OFFLOAD */

/**
 * __wlan_hdd_cfg80211_set_mac_acl() - set access control policy
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @param: Pointer to access control parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_set_mac_acl(struct wiphy *wiphy,
					 struct net_device *dev,
					 const struct cfg80211_acl_data *params)
{
	int i;
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_hostapd_state_t *pHostapdState;
	tsap_Config_t *pConfig;
	v_CONTEXT_t p_cds_context = NULL;
	hdd_context_t *pHddCtx;
	int status;
	QDF_STATUS qdf_status = QDF_STATUS_SUCCESS;

	ENTER();

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (NULL == params) {
		hdd_err("params is Null");
		return -EINVAL;
	}

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);

	if (0 != status)
		return status;

	p_cds_context = pHddCtx->pcds_context;
	pHostapdState = WLAN_HDD_GET_HOSTAP_STATE_PTR(pAdapter);

	if (NULL == pHostapdState) {
		hdd_err("pHostapdState is Null");
		return -EINVAL;
	}

	hdd_err("acl policy: = %d no acl entries = %d", params->acl_policy,
		params->n_acl_entries);

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_SET_MAC_ACL,
			 pAdapter->sessionId, pAdapter->device_mode));
	if (QDF_SAP_MODE == pAdapter->device_mode) {
		pConfig = &pAdapter->sessionCtx.ap.sapConfig;

		/* default value */
		pConfig->num_accept_mac = 0;
		pConfig->num_deny_mac = 0;

		/**
		 * access control policy
		 * @NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED: Deny stations which are
		 *   listed in hostapd.deny file.
		 * @NL80211_ACL_POLICY_DENY_UNLESS_LISTED: Allow stations which are
		 *   listed in hostapd.accept file.
		 */
		if (NL80211_ACL_POLICY_DENY_UNLESS_LISTED == params->acl_policy) {
			pConfig->SapMacaddr_acl = eSAP_DENY_UNLESS_ACCEPTED;
		} else if (NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED ==
			   params->acl_policy) {
			pConfig->SapMacaddr_acl = eSAP_ACCEPT_UNLESS_DENIED;
		} else {
			hdd_err("Acl Policy : %d is not supported",
				params->acl_policy);
			return -ENOTSUPP;
		}

		if (eSAP_DENY_UNLESS_ACCEPTED == pConfig->SapMacaddr_acl) {
			pConfig->num_accept_mac = params->n_acl_entries;
			for (i = 0; i < params->n_acl_entries; i++) {
				hdd_notice("** Add ACL MAC entry %i in WhiletList :"
					MAC_ADDRESS_STR, i,
					MAC_ADDR_ARRAY(
						params->mac_addrs[i].addr));

				qdf_mem_copy(&pConfig->accept_mac[i],
					     params->mac_addrs[i].addr,
					     sizeof(qcmacaddr));
			}
		} else if (eSAP_ACCEPT_UNLESS_DENIED == pConfig->SapMacaddr_acl) {
			pConfig->num_deny_mac = params->n_acl_entries;
			for (i = 0; i < params->n_acl_entries; i++) {
				hdd_notice("** Add ACL MAC entry %i in BlackList :"
					MAC_ADDRESS_STR, i,
					MAC_ADDR_ARRAY(
						params->mac_addrs[i].addr));

				qdf_mem_copy(&pConfig->deny_mac[i],
					     params->mac_addrs[i].addr,
					     sizeof(qcmacaddr));
			}
		}
		qdf_status = wlansap_set_mac_acl(
			WLAN_HDD_GET_SAP_CTX_PTR(pAdapter), pConfig);
		if (!QDF_IS_STATUS_SUCCESS(qdf_status)) {
			hdd_err("SAP Set Mac Acl fail");
			return -EINVAL;
		}
	} else {
		hdd_notice("Invalid device_mode %s(%d)",
			hdd_device_mode_to_string(pAdapter->device_mode),
			pAdapter->device_mode);
		return -EINVAL;
	}
	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_set_mac_acl() - SSR wrapper for
 *				__wlan_hdd_cfg80211_set_mac_acl
 * @wiphy: pointer to wiphy structure
 * @dev: pointer to net_device
 * @params: pointer to cfg80211_acl_data
 *
 * Return; 0 on success, error number otherwise
 */
static int
wlan_hdd_cfg80211_set_mac_acl(struct wiphy *wiphy,
			      struct net_device *dev,
			      const struct cfg80211_acl_data *params)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_mac_acl(wiphy, dev, params);
	cds_ssr_unprotect(__func__);

	return ret;
}

#ifdef WLAN_NL80211_TESTMODE
#ifdef FEATURE_WLAN_LPHB
/**
 * wlan_hdd_cfg80211_lphb_ind_handler() - handle low power heart beat indication
 * @pHddCtx: Pointer to hdd context
 * @lphbInd: Pointer to low power heart beat indication parameter
 *
 * Return: none
 */
static void wlan_hdd_cfg80211_lphb_ind_handler(void *pHddCtx,
					       tSirLPHBInd *lphbInd)
{
	struct sk_buff *skb;

	hdd_err("LPHB indication arrived");

	if (0 != wlan_hdd_validate_context((hdd_context_t *) pHddCtx))
		return;

	if (NULL == lphbInd) {
		hdd_err("invalid argument lphbInd");
		return;
	}

	skb = cfg80211_testmode_alloc_event_skb(((hdd_context_t *) pHddCtx)->
						wiphy, sizeof(tSirLPHBInd),
						GFP_ATOMIC);
	if (!skb) {
		hdd_err("LPHB timeout, NL buffer alloc fail");
		return;
	}

	if (nla_put_u32(skb, WLAN_HDD_TM_ATTR_CMD, WLAN_HDD_TM_CMD_WLAN_HB)) {
		hdd_err("WLAN_HDD_TM_ATTR_CMD put fail");
		goto nla_put_failure;
	}
	if (nla_put_u32(skb, WLAN_HDD_TM_ATTR_TYPE, lphbInd->protocolType)) {
		hdd_err("WLAN_HDD_TM_ATTR_TYPE put fail");
		goto nla_put_failure;
	}
	if (nla_put(skb, WLAN_HDD_TM_ATTR_DATA, sizeof(tSirLPHBInd), lphbInd)) {
		hdd_err("WLAN_HDD_TM_ATTR_DATA put fail");
		goto nla_put_failure;
	}
	cfg80211_testmode_event(skb, GFP_ATOMIC);
	return;

nla_put_failure:
	hdd_err("NLA Put fail");
	kfree_skb(skb);

	return;
}
#endif /* FEATURE_WLAN_LPHB */

/**
 * __wlan_hdd_cfg80211_testmode() - test mode
 * @wiphy: Pointer to wiphy
 * @data: Data pointer
 * @len: Data length
 *
 * Return: 0 for success, non-zero for failure
 */
static int __wlan_hdd_cfg80211_testmode(struct wiphy *wiphy,
					void *data, int len)
{
	struct nlattr *tb[WLAN_HDD_TM_ATTR_MAX + 1];
	int err;
	hdd_context_t *pHddCtx = wiphy_priv(wiphy);

	ENTER();

	err = wlan_hdd_validate_context(pHddCtx);
	if (err)
		return err;

	err = nla_parse(tb, WLAN_HDD_TM_ATTR_MAX, data,
			len, wlan_hdd_tm_policy);
	if (err) {
		hdd_err("Testmode INV ATTR");
		return err;
	}

	if (!tb[WLAN_HDD_TM_ATTR_CMD]) {
		hdd_err("Testmode INV CMD");
		return -EINVAL;
	}

	MTRACE(qdf_trace(QDF_MODULE_ID_HDD,
			 TRACE_CODE_HDD_CFG80211_TESTMODE,
			 NO_SESSION, nla_get_u32(tb[WLAN_HDD_TM_ATTR_CMD])));
	switch (nla_get_u32(tb[WLAN_HDD_TM_ATTR_CMD])) {
#ifdef FEATURE_WLAN_LPHB
	/* Low Power Heartbeat configuration request */
	case WLAN_HDD_TM_CMD_WLAN_HB:
	{
		int buf_len;
		void *buf;
		tSirLPHBReq *hb_params = NULL;
		tSirLPHBReq *hb_params_temp = NULL;
		QDF_STATUS smeStatus;

		if (!tb[WLAN_HDD_TM_ATTR_DATA]) {
			hdd_err("Testmode INV DATA");
			return -EINVAL;
		}

		buf = nla_data(tb[WLAN_HDD_TM_ATTR_DATA]);
		buf_len = nla_len(tb[WLAN_HDD_TM_ATTR_DATA]);

		hb_params_temp = (tSirLPHBReq *) buf;
		if ((hb_params_temp->cmd == LPHB_SET_TCP_PARAMS_INDID)
		    && (hb_params_temp->params.lphbTcpParamReq.
			timePeriodSec == 0))
			return -EINVAL;

		hb_params =
			(tSirLPHBReq *) qdf_mem_malloc(sizeof(tSirLPHBReq));
		if (NULL == hb_params) {
			hdd_err("Request Buffer Alloc Fail");
			return -ENOMEM;
		}

		qdf_mem_copy(hb_params, buf, buf_len);
		smeStatus =
			sme_lphb_config_req((tHalHandle) (pHddCtx->hHal),
					    hb_params,
					    wlan_hdd_cfg80211_lphb_ind_handler);
		if (QDF_STATUS_SUCCESS != smeStatus) {
			hdd_err("LPHB Config Fail, disable");
			qdf_mem_free(hb_params);
		}
		return 0;
	}
#endif /* FEATURE_WLAN_LPHB */

#if  defined(QCA_WIFI_FTM)
	case WLAN_HDD_TM_CMD_WLAN_FTM:
	{
		int buf_len;
		void *buf;
		QDF_STATUS status;
		if (!tb[WLAN_HDD_TM_ATTR_DATA]) {
			hdd_err("WLAN_HDD_TM_ATTR_DATA attribute is invalid");
			return -EINVAL;
		}

		buf = nla_data(tb[WLAN_HDD_TM_ATTR_DATA]);
		buf_len = nla_len(tb[WLAN_HDD_TM_ATTR_DATA]);

		hdd_info("****FTM Tx cmd len = %d*****", buf_len);

		status = wlan_hdd_ftm_testmode_cmd(buf, buf_len);

		if (status != QDF_STATUS_SUCCESS)
			err = -EBUSY;
		break;
	}
#endif

	default:
		hdd_err("command %d not supported",
		       nla_get_u32(tb[WLAN_HDD_TM_ATTR_CMD]));
		return -EOPNOTSUPP;
	}
	EXIT();
	return err;
}

/**
 * wlan_hdd_cfg80211_testmode() - test mode
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @data: Data pointer
 * @len: Data length
 *
 * Return: 0 for success, non-zero for failure
 */
static int wlan_hdd_cfg80211_testmode(struct wiphy *wiphy,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 12, 0))
				      struct wireless_dev *wdev,
#endif
				      void *data, int len)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_testmode(wiphy, data, len);
	cds_ssr_unprotect(__func__);

	return ret;
}

#if  defined(QCA_WIFI_FTM)
/**
 * wlan_hdd_testmode_rx_event() - test mode rx event handler
 * @buf: Pointer to buffer
 * @buf_len: Buffer length
 *
 * Return: none
 */
void wlan_hdd_testmode_rx_event(void *buf, size_t buf_len)
{
	struct sk_buff *skb;
	hdd_context_t *hdd_ctx;

	if (!buf || !buf_len) {
		hdd_err("buf or buf_len invalid, buf = %p buf_len = %zu", buf, buf_len);
		return;
	}

	hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
	if (!hdd_ctx) {
		hdd_err("hdd context invalid");
		return;
	}

	skb = cfg80211_testmode_alloc_event_skb(hdd_ctx->wiphy,
						buf_len, GFP_KERNEL);
	if (!skb) {
		hdd_err("failed to allocate testmode rx skb!");
		return;
	}

	if (nla_put_u32(skb, WLAN_HDD_TM_ATTR_CMD, WLAN_HDD_TM_CMD_WLAN_FTM) ||
	    nla_put(skb, WLAN_HDD_TM_ATTR_DATA, buf_len, buf))
		goto nla_put_failure;

	hdd_info("****FTM Rx cmd len = %zu*****", buf_len);

	cfg80211_testmode_event(skb, GFP_KERNEL);
	return;

nla_put_failure:
	kfree_skb(skb);
	hdd_err("nla_put failed on testmode rx skb!");
}
#endif
#endif /* CONFIG_NL80211_TESTMODE */

#ifdef QCA_HT_2040_COEX
/**
 * __wlan_hdd_cfg80211_set_ap_channel_width() - set ap channel bandwidth
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @chandef: Pointer to channel definition parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int
__wlan_hdd_cfg80211_set_ap_channel_width(struct wiphy *wiphy,
					 struct net_device *dev,
					 struct cfg80211_chan_def *chandef)
{
	hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *pHddCtx;
	QDF_STATUS status;
	tSmeConfigParams sme_config;
	bool cbModeChange = false;

	if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
		hdd_err("Command not allowed in FTM mode");
		return -EINVAL;
	}

	if (wlan_hdd_validate_session_id(pAdapter->sessionId)) {
		hdd_err("invalid session id: %d", pAdapter->sessionId);
		return -EINVAL;
	}

	pHddCtx = WLAN_HDD_GET_CTX(pAdapter);
	status = wlan_hdd_validate_context(pHddCtx);
	if (status)
		return status;

	qdf_mem_zero(&sme_config, sizeof(tSmeConfigParams));
	sme_get_config_param(pHddCtx->hHal, &sme_config);
	switch (chandef->width) {
	case NL80211_CHAN_WIDTH_20:
		if (sme_config.csrConfig.channelBondingMode24GHz !=
		    eCSR_INI_SINGLE_CHANNEL_CENTERED) {
			sme_config.csrConfig.channelBondingMode24GHz =
				eCSR_INI_SINGLE_CHANNEL_CENTERED;
			sme_update_config(pHddCtx->hHal, &sme_config);
			cbModeChange = true;
		}
		break;

	case NL80211_CHAN_WIDTH_40:
		if (sme_config.csrConfig.channelBondingMode24GHz ==
		    eCSR_INI_SINGLE_CHANNEL_CENTERED) {
			if (NL80211_CHAN_HT40MINUS ==
			    cfg80211_get_chandef_type(chandef))
				sme_config.csrConfig.channelBondingMode24GHz =
					eCSR_INI_DOUBLE_CHANNEL_HIGH_PRIMARY;
			else
				sme_config.csrConfig.channelBondingMode24GHz =
					eCSR_INI_DOUBLE_CHANNEL_LOW_PRIMARY;
			sme_update_config(pHddCtx->hHal, &sme_config);
			cbModeChange = true;
		}
		break;

	default:
		hdd_err("Error!!! Invalid HT20/40 mode !");
		return -EINVAL;
	}

	if (!cbModeChange)
		return 0;

	if (QDF_SAP_MODE != pAdapter->device_mode)
		return 0;

	hdd_notice("Channel bonding changed to %d",
	       sme_config.csrConfig.channelBondingMode24GHz);

	/* Change SAP ht2040 mode */
	status = hdd_set_sap_ht2040_mode(pAdapter,
					 cfg80211_get_chandef_type(chandef));
	if (status != QDF_STATUS_SUCCESS) {
		hdd_err("Error!!! Cannot set SAP HT20/40 mode!");
		return -EINVAL;
	}

	return 0;
}

/**
 * wlan_hdd_cfg80211_set_ap_channel_width() - set ap channel bandwidth
 * @wiphy: Pointer to wiphy
 * @dev: Pointer to network device
 * @chandef: Pointer to channel definition parameter
 *
 * Return: 0 for success, non-zero for failure
 */
static int
wlan_hdd_cfg80211_set_ap_channel_width(struct wiphy *wiphy,
				       struct net_device *dev,
				       struct cfg80211_chan_def *chandef)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_ap_channel_width(wiphy, dev, chandef);
	cds_ssr_unprotect(__func__);

	return ret;
}
#endif

#ifdef CHANNEL_SWITCH_SUPPORTED
/**
 * __wlan_hdd_cfg80211_channel_switch()- function to switch
 * channel in SAP/GO
 * @wiphy:  wiphy pointer
 * @dev: dev pointer.
 * @csa_params: Change channel params
 *
 * This function is called to switch channel in SAP/GO
 *
 * Return: 0 if success else return non zero
 */
static int __wlan_hdd_cfg80211_channel_switch(struct wiphy *wiphy,
				struct net_device *dev,
				struct cfg80211_csa_settings *csa_params)
{
	hdd_adapter_t *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
	hdd_context_t *hdd_ctx;
	uint8_t channel;
	uint16_t freq;
	int ret;
	enum phy_ch_width ch_width;

	hdd_notice("Set Freq %d",
		  csa_params->chandef.chan->center_freq);

	if (wlan_hdd_validate_session_id(adapter->sessionId)) {
		hdd_err("invalid session id: %d", adapter->sessionId);
		return -EINVAL;
	}

	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
	ret = wlan_hdd_validate_context(hdd_ctx);

	if (0 != ret)
		return ret;

	if ((QDF_P2P_GO_MODE != adapter->device_mode) &&
		(QDF_SAP_MODE != adapter->device_mode))
		return -ENOTSUPP;

	freq = csa_params->chandef.chan->center_freq;
	channel = cds_freq_to_chan(freq);

	ch_width = hdd_map_nl_chan_width(csa_params->chandef.width);

	ret = hdd_softap_set_channel_change(dev, channel, ch_width);
	return ret;
}

/**
 * wlan_hdd_cfg80211_channel_switch()- function to switch
 * channel in SAP/GO
 * @wiphy:  wiphy pointer
 * @dev: dev pointer.
 * @csa_params: Change channel params
 *
 * This function is called to switch channel in SAP/GO
 *
 * Return: 0 if success else return non zero
 */
static int wlan_hdd_cfg80211_channel_switch(struct wiphy *wiphy,
				struct net_device *dev,
				struct cfg80211_csa_settings *csa_params)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_channel_switch(wiphy, dev, csa_params);
	cds_ssr_unprotect(__func__);
	return ret;
}
#endif

/**
 * wlan_hdd_convert_nl_iftype_to_hdd_type() - provides the type
 * translation from NL to policy manager type
 * @type: Generic connection mode type defined in NL
 *
 *
 * This function provides the type translation
 *
 * Return: cds_con_mode enum
 */
enum cds_con_mode wlan_hdd_convert_nl_iftype_to_hdd_type(
						enum nl80211_iftype type)
{
	enum cds_con_mode mode = CDS_MAX_NUM_OF_MODE;
	switch (type) {
	case NL80211_IFTYPE_STATION:
		mode = CDS_STA_MODE;
		break;
	case NL80211_IFTYPE_P2P_CLIENT:
		mode = CDS_P2P_CLIENT_MODE;
		break;
	case NL80211_IFTYPE_P2P_GO:
		mode = CDS_P2P_GO_MODE;
		break;
	case NL80211_IFTYPE_AP:
		mode = CDS_SAP_MODE;
		break;
	case NL80211_IFTYPE_ADHOC:
		mode = CDS_IBSS_MODE;
		break;
	default:
		hdd_err("Unsupported interface type (%d)",
			   type);
	}
	return mode;
}

/**
 * wlan_hdd_cfg80211_set_mon_ch() - Set monitor mode capture channel
 * @wiphy: Handle to struct wiphy to get handle to module context.
 * @chandef: Contains information about the capture channel to be set.
 *
 * This interface is called if and only if monitor mode interface alone is
 * active.
 *
 * Return: 0 success or error code on failure.
 */
static int __wlan_hdd_cfg80211_set_mon_ch(struct wiphy *wiphy,
				       struct cfg80211_chan_def *chandef)
{
	hdd_context_t *hdd_ctx = wiphy_priv(wiphy);
	hdd_adapter_t *adapter;
	hdd_station_ctx_t *sta_ctx;
	struct hdd_mon_set_ch_info *ch_info;
	QDF_STATUS status;
	tHalHandle hal_hdl;
	struct qdf_mac_addr bssid;
	tCsrRoamProfile roam_profile;
	struct ch_params_s ch_params;
	uint8_t sec_ch = 0;
	int ret;
	uint16_t chan_num = cds_freq_to_chan(chandef->chan->center_freq);

	ENTER();

	ret = wlan_hdd_validate_context(hdd_ctx);
	if (ret)
		return ret;

	hal_hdl = hdd_ctx->hHal;

	adapter = hdd_get_adapter(hdd_ctx, QDF_MONITOR_MODE);
	if (!adapter)
		return -EIO;

	hdd_info("%s: set monitor mode Channel %d and freq %d",
		 adapter->dev->name, chan_num, chandef->chan->center_freq);

	sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter);
	ch_info = &sta_ctx->ch_info;
	roam_profile.ChannelInfo.ChannelList = &ch_info->channel;
	roam_profile.ChannelInfo.numOfChannels = 1;
	roam_profile.phyMode = ch_info->phy_mode;
	roam_profile.ch_params.ch_width = chandef->width;
	hdd_select_cbmode(adapter, chan_num, &roam_profile.ch_params);

	qdf_mem_copy(bssid.bytes, adapter->macAddressCurrent.bytes,
		     QDF_MAC_ADDR_SIZE);

	ch_params.ch_width = chandef->width;
	/*
	 * CDS api expects secondary channel for calculating
	 * the channel params
	 */
	if ((ch_params.ch_width == CH_WIDTH_40MHZ) &&
	    (CDS_IS_CHANNEL_24GHZ(chan_num))) {
		if (chan_num >= 1 && chan_num <= 5)
			sec_ch = chan_num + 4;
		else if (chan_num >= 6 && chan_num <= 13)
			sec_ch = chan_num - 4;
	}
	cds_set_channel_params(chan_num, sec_ch, &ch_params);
	status = sme_roam_channel_change_req(hal_hdl, bssid, &ch_params,
						 &roam_profile);
	if (status) {
		hdd_err("Status: %d Failed to set sme_RoamChannel for monitor mode",
			status);
		ret = qdf_status_to_os_return(status);
		return ret;
	}
	EXIT();
	return 0;
}

/**
 * wlan_hdd_cfg80211_set_mon_ch() - Set monitor mode capture channel
 * @wiphy: Handle to struct wiphy to get handle to module context.
 * @chandef: Contains information about the capture channel to be set.
 *
 * This interface is called if and only if monitor mode interface alone is
 * active.
 *
 * Return: 0 success or error code on failure.
 */
static int wlan_hdd_cfg80211_set_mon_ch(struct wiphy *wiphy,
				       struct cfg80211_chan_def *chandef)
{
	int ret;

	cds_ssr_protect(__func__);
	ret = __wlan_hdd_cfg80211_set_mon_ch(wiphy, chandef);
	cds_ssr_unprotect(__func__);
	return ret;
}

/**
 * wlan_hdd_clear_link_layer_stats() - clear link layer stats
 * @adapter: pointer to adapter
 *
 * Wrapper function to clear link layer stats.
 * return - void
 */
void wlan_hdd_clear_link_layer_stats(hdd_adapter_t *adapter)
{
	tSirLLStatsClearReq link_layer_stats_clear_req;
	tHalHandle hal = WLAN_HDD_GET_HAL_CTX(adapter);

	link_layer_stats_clear_req.statsClearReqMask = WIFI_STATS_IFACE_AC |
		WIFI_STATS_IFACE_ALL_PEER;
	link_layer_stats_clear_req.stopReq = 0;
	link_layer_stats_clear_req.reqId = 1;
	link_layer_stats_clear_req.staId = adapter->sessionId;
	sme_ll_stats_clear_req(hal, &link_layer_stats_clear_req);

	return;
}

#define CNT_DIFF(cur, prev) \
	((cur >= prev) ? (cur - prev) : (cur + (MAX_COUNT - (prev) + 1)))
#define MAX_COUNT 0xffffffff
static void hdd_update_chan_info(hdd_context_t *hdd_ctx,
			struct scan_chan_info *chan,
			struct scan_chan_info *info, uint32_t cmd_flag)
{
	if ((info->cmd_flag != WMI_CHAN_InFO_START_RESP) &&
	   (info->cmd_flag != WMI_CHAN_InFO_END_RESP))
		hdd_err("cmd flag is invalid: %d", info->cmd_flag);

	mutex_lock(&hdd_ctx->chan_info_lock);

	if (info->cmd_flag == WMI_CHAN_InFO_START_RESP)
		qdf_mem_zero(chan, sizeof(*chan));

	chan->freq = info->freq;
	chan->noise_floor = info->noise_floor;
	chan->clock_freq = info->clock_freq;
	chan->cmd_flag = info->cmd_flag;
	chan->cycle_count = CNT_DIFF(info->cycle_count, chan->cycle_count);

	chan->rx_clear_count =
			CNT_DIFF(info->rx_clear_count, chan->rx_clear_count);

	chan->tx_frame_count =
			CNT_DIFF(info->tx_frame_count, chan->tx_frame_count);

	mutex_unlock(&hdd_ctx->chan_info_lock);

}
#undef CNT_DIFF
#undef MAX_COUNT

/**
 * wlan_hdd_chan_info_cb() - channel info callback
 * @chan_info: struct scan_chan_info
 *
 * Store channel info into HDD context
 *
 * Return: None.
 */
static void wlan_hdd_chan_info_cb(struct scan_chan_info *info)
{
	hdd_context_t *hdd_ctx;
	struct scan_chan_info *chan;
	uint8_t idx;

	ENTER();

	hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
	if (wlan_hdd_validate_context(hdd_ctx) != 0) {
		hdd_err("hdd_ctx is invalid");
		return;
	}

	if (!hdd_ctx->chan_info) {
		hdd_err("chan_info is NULL");
		return;
	}

	chan = hdd_ctx->chan_info;
	for (idx = 0; idx < SIR_MAX_NUM_CHANNELS; idx++) {
		if (chan[idx].freq == info->freq) {
			hdd_update_chan_info(hdd_ctx, &chan[idx], info,
				info->cmd_flag);
			hdd_info("cmd:%d freq:%u nf:%d cc:%u rcc:%u clk:%u cmd:%d tfc:%d index:%d",
				chan[idx].cmd_flag, chan[idx].freq,
				chan[idx].noise_floor,
				chan[idx].cycle_count, chan[idx].rx_clear_count,
				chan[idx].clock_freq, chan[idx].cmd_flag,
				chan[idx].tx_frame_count, idx);
			if (chan[idx].freq == 0)
				break;

		}
	}

	EXIT();
}

/**
 * wlan_hdd_init_chan_info() - init chan info in hdd context
 * @hdd_ctx: HDD context pointer
 *
 * Return: none
 */
void wlan_hdd_init_chan_info(hdd_context_t *hdd_ctx)
{
	uint8_t num_2g, num_5g, index = 0;

	if (!hdd_ctx->config->fEnableSNRMonitoring) {
		hdd_info("SNR monitoring is disabled");
		return;
	}

	hdd_ctx->chan_info =
		qdf_mem_malloc(sizeof(struct scan_chan_info)
					* QDF_MAX_NUM_CHAN);
	if (hdd_ctx->chan_info == NULL) {
		hdd_err("Failed to malloc for chan info");
		return;
	}
	mutex_init(&hdd_ctx->chan_info_lock);

	num_2g = QDF_ARRAY_SIZE(hdd_channels_2_4_ghz);
	for (; index < num_2g; index++) {
		hdd_ctx->chan_info[index].freq =
			hdd_channels_2_4_ghz[index].center_freq;
	}

	num_5g = QDF_ARRAY_SIZE(hdd_channels_5_ghz);
	for (; (index - num_2g) < num_5g; index++) {
		if (cds_is_dsrc_channel(
			hdd_channels_5_ghz[index - num_2g].center_freq))
			continue;
		hdd_ctx->chan_info[index].freq =
			hdd_channels_5_ghz[index - num_2g].center_freq;
	}
	sme_set_chan_info_callback(hdd_ctx->hHal,
				   &wlan_hdd_chan_info_cb);
}

/**
 * wlan_hdd_deinit_chan_info() - deinit chan info in hdd context
 * @hdd_ctx: hdd context pointer
 *
 * Return: none
 */
void wlan_hdd_deinit_chan_info(hdd_context_t *hdd_ctx)
{
	struct scan_chan_info *chan;

	chan = hdd_ctx->chan_info;
	hdd_ctx->chan_info = NULL;
	if (chan)
		qdf_mem_free(chan);
}

/**
 * struct cfg80211_ops - cfg80211_ops
 *
 * @add_virtual_intf: Add virtual interface
 * @del_virtual_intf: Delete virtual interface
 * @change_virtual_intf: Change virtual interface
 * @change_station: Change station
 * @add_beacon: Add beacon in sap mode
 * @del_beacon: Delete beacon in sap mode
 * @set_beacon: Set beacon in sap mode
 * @start_ap: Start ap
 * @change_beacon: Change beacon
 * @stop_ap: Stop ap
 * @change_bss: Change bss
 * @add_key: Add key
 * @get_key: Get key
 * @del_key: Delete key
 * @set_default_key: Set default key
 * @set_channel: Set channel
 * @scan: Scan
 * @connect: Connect
 * @disconnect: Disconnect
 * @join_ibss = Join ibss
 * @leave_ibss = Leave ibss
 * @set_wiphy_params = Set wiphy params
 * @set_tx_power = Set tx power
 * @get_tx_power = get tx power
 * @remain_on_channel = Remain on channel
 * @cancel_remain_on_channel = Cancel remain on channel
 * @mgmt_tx = Tx management frame
 * @mgmt_tx_cancel_wait = Cancel management tx wait
 * @set_default_mgmt_key = Set default management key
 * @set_txq_params = Set tx queue parameters
 * @get_station = Get station
 * @set_power_mgmt = Set power management
 * @del_station = Delete station
 * @add_station = Add station
 * @set_pmksa = Set pmksa
 * @del_pmksa = Delete pmksa
 * @flush_pmksa = Flush pmksa
 * @update_ft_ies = Update FT IEs
 * @tdls_mgmt = Tdls management
 * @tdls_oper = Tdls operation
 * @set_rekey_data = Set rekey data
 * @sched_scan_start = Scheduled scan start
 * @sched_scan_stop = Scheduled scan stop
 * @resume = Resume wlan
 * @suspend = Suspend wlan
 * @set_mac_acl = Set mac acl
 * @testmode_cmd = Test mode command
 * @set_ap_chanwidth = Set AP channel bandwidth
 * @dump_survey = Dump survey
 * @key_mgmt_set_pmk = Set pmk key management
 */
static struct cfg80211_ops wlan_hdd_cfg80211_ops = {
	.add_virtual_intf = wlan_hdd_add_virtual_intf,
	.del_virtual_intf = wlan_hdd_del_virtual_intf,
	.change_virtual_intf = wlan_hdd_cfg80211_change_iface,
	.change_station = wlan_hdd_change_station,
	.start_ap = wlan_hdd_cfg80211_start_ap,
	.change_beacon = wlan_hdd_cfg80211_change_beacon,
	.stop_ap = wlan_hdd_cfg80211_stop_ap,
	.change_bss = wlan_hdd_cfg80211_change_bss,
	.add_key = wlan_hdd_cfg80211_add_key,
	.get_key = wlan_hdd_cfg80211_get_key,
	.del_key = wlan_hdd_cfg80211_del_key,
	.set_default_key = wlan_hdd_cfg80211_set_default_key,
	.scan = wlan_hdd_cfg80211_scan,
	.connect = wlan_hdd_cfg80211_connect,
	.disconnect = wlan_hdd_cfg80211_disconnect,
	.join_ibss = wlan_hdd_cfg80211_join_ibss,
	.leave_ibss = wlan_hdd_cfg80211_leave_ibss,
	.set_wiphy_params = wlan_hdd_cfg80211_set_wiphy_params,
	.set_tx_power = wlan_hdd_cfg80211_set_txpower,
	.get_tx_power = wlan_hdd_cfg80211_get_txpower,
	.remain_on_channel = wlan_hdd_cfg80211_remain_on_channel,
	.cancel_remain_on_channel = wlan_hdd_cfg80211_cancel_remain_on_channel,
	.mgmt_tx = wlan_hdd_mgmt_tx,
	.mgmt_tx_cancel_wait = wlan_hdd_cfg80211_mgmt_tx_cancel_wait,
	.set_default_mgmt_key = wlan_hdd_set_default_mgmt_key,
	.set_txq_params = wlan_hdd_set_txq_params,
	.dump_station = wlan_hdd_cfg80211_dump_station,
	.get_station = wlan_hdd_cfg80211_get_station,
	.set_power_mgmt = wlan_hdd_cfg80211_set_power_mgmt,
	.del_station = wlan_hdd_cfg80211_del_station,
	.add_station = wlan_hdd_cfg80211_add_station,
	.set_pmksa = wlan_hdd_cfg80211_set_pmksa,
	.del_pmksa = wlan_hdd_cfg80211_del_pmksa,
	.flush_pmksa = wlan_hdd_cfg80211_flush_pmksa,
#if defined(KERNEL_SUPPORT_11R_CFG80211)
	.update_ft_ies = wlan_hdd_cfg80211_update_ft_ies,
#endif
#ifdef FEATURE_WLAN_TDLS
	.tdls_mgmt = wlan_hdd_cfg80211_tdls_mgmt,
	.tdls_oper = wlan_hdd_cfg80211_tdls_oper,
#endif
#ifdef WLAN_FEATURE_GTK_OFFLOAD
	.set_rekey_data = wlan_hdd_cfg80211_set_rekey_data,
#endif /* WLAN_FEATURE_GTK_OFFLOAD */
#ifdef FEATURE_WLAN_SCAN_PNO
	.sched_scan_start = wlan_hdd_cfg80211_sched_scan_start,
	.sched_scan_stop = wlan_hdd_cfg80211_sched_scan_stop,
#endif /*FEATURE_WLAN_SCAN_PNO */
	.resume = wlan_hdd_cfg80211_resume_wlan,
	.suspend = wlan_hdd_cfg80211_suspend_wlan,
	.set_mac_acl = wlan_hdd_cfg80211_set_mac_acl,
#ifdef WLAN_NL80211_TESTMODE
	.testmode_cmd = wlan_hdd_cfg80211_testmode,
#endif
#ifdef QCA_HT_2040_COEX
	.set_ap_chanwidth = wlan_hdd_cfg80211_set_ap_channel_width,
#endif
	.dump_survey = wlan_hdd_cfg80211_dump_survey,
#ifdef CHANNEL_SWITCH_SUPPORTED
	.channel_switch = wlan_hdd_cfg80211_channel_switch,
#endif
	.set_monitor_channel = wlan_hdd_cfg80211_set_mon_ch,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0)) || \
    defined(CFG80211_ABORT_SCAN)
	.abort_scan = wlan_hdd_cfg80211_abort_scan,
#endif
};